Merge lucky gift dynamic v3 into test

# Conflicts: # api/proto/luckygift/v1/luckygift.pb.go # api/proto/luckygift/v1/luckygift.proto # api/proto/room/v1/room.pb.go # api/proto/wallet/v1/wallet.pb.go # services/lucky-gift-service/internal/domain/luckygift/lucky_gift.go # services/lucky-gift-service/internal/service/luckygift/service.go # services/lucky-gift-service/internal/transport/grpc/lucky_gift_server.go # services/room-service/internal/room/service/gift_lucky.go # services/user-service/internal/service/auth/password.go # services/user-service/internal/service/auth/quick_account.go # services/user-service/internal/service/auth/third_party.go # services/user-service/internal/service/auth/token.go
2026-07-15 14:55:03 +08:00 · 2026-07-15 14:55:03 +08:00 · f3570384f2
commit f3570384f2
parent 723b77f137 8b6105c730
67 changed files with 24187 additions and 8151 deletions
--- a/api/proto/luckygift/v1/luckygift.pb.go
+++ b/api/proto/luckygift/v1/luckygift.pb.go
--- a/api/proto/luckygift/v1/luckygift.proto
+++ b/api/proto/luckygift/v1/luckygift.proto
@ -36,6 +36,12 @@ message LuckyGiftMeta {
  string sender_avatar = 16;
  string sender_display_user_id = 17;
  string sender_pretty_display_user_id = 18;
+  // 充值分层与充值后短时加权必须由调用方传入已确认的用户事实；幸运礼物服务不跨库回查用户或支付明细。
+  int64 recharge_7d_coins = 19;
+  int64 recharge_30d_coins = 20;
+  int64 last_recharged_at_ms = 21;
+  // gift_income_coins 是 wallet 已实际入账给收礼人的收益金币；dynamic_v3 用它校验规则主播拆账，缺失或比例不一致均拒绝开奖。
+  int64 gift_income_coins = 22;
 }

 message LuckyGiftRuleTier {
@ -50,6 +56,9 @@ message LuckyGiftRuleTier {
 message LuckyGiftRuleStage {
  string stage = 1;
  repeated LuckyGiftRuleTier tiers = 2;
+  // 两个充值门槛共同决定 dynamic_v3 分层；novice 固定为 0/0，后续阶段逐维单调递增。
+  int64 min_recharge_7d_coins = 3;
+  int64 min_recharge_30d_coins = 4;
 }

 message LuckyGiftRuleConfig {
@ -68,6 +77,30 @@ message LuckyGiftRuleConfig {
  int64 created_by_admin_id = 13;
  int64 created_at_ms = 14;
  repeated LuckyGiftRuleStage stages = 15;
+  // strategy_version 隔离历史 fixed_v2 与动态算法 dynamic_v3，避免新增约束破坏已经发布的旧规则。
+  string strategy_version = 16;
+  int64 profit_rate_ppm = 17;
+  int64 anchor_rate_ppm = 18;
+  int64 initial_pool_coins = 19;
+  int64 loss_streak_guarantee = 20;
+  int64 low_watermark_coins = 21;
+  int64 low_water_nonzero_factor_ppm = 22;
+  int64 high_watermark_coins = 23;
+  int64 high_water_nonzero_factor_ppm = 24;
+  int64 recharge_boost_window_ms = 25;
+  int64 recharge_boost_factor_ppm = 26;
+  repeated int64 jackpot_multiplier_ppms = 27;
+  int64 jackpot_global_rtp_max_ppm = 28;
+  int64 jackpot_user_day_rtp_max_ppm = 29;
+  int64 jackpot_user_72h_rtp_max_ppm = 30;
+  int64 jackpot_spend_threshold_coins = 31;
+  int64 max_jackpot_hits_per_user_day = 32;
+  int64 max_single_payout = 33;
+  int64 user_hourly_payout_cap = 34;
+  int64 user_daily_payout_cap = 35;
+  int64 device_daily_payout_cap = 36;
+  int64 room_hourly_payout_cap = 37;
+  int64 anchor_daily_payout_cap = 38;
 }

 message CheckLuckyGiftRequest {
@ -87,6 +120,8 @@ message CheckLuckyGiftResponse {
  int64 target_rtp_ppm = 6;
  string experience_pool = 7;
  string pool_id = 8;
+  // strategy_version 由 lucky-gift owner 返回并由 room saga 固化，用于滚动发布时区分 fixed_v2 兼容与 dynamic_v3 强校验。
+  string strategy_version = 9;
 }

 message LuckyGiftDrawResult {
@ -146,6 +181,8 @@ message ExternalGiftDrawRequest {
  int64 paid_at_ms = 10;
  string metadata_json = 11;
  string pool_id = 12;
+  // dynamic_v3 必填的稳定设备作用域。luck-gateway 不独立证明其真实性，调用方必须在自己的认证/签名边界内绑定该值；fixed_v2 允许缺失。
+  string device_id = 13;
 }

 message ExternalGiftDrawResponse {
--- a/api/proto/room/v1/room.pb.go
+++ b/api/proto/room/v1/room.pb.go
--- a/api/proto/room/v1/room.proto
+++ b/api/proto/room/v1/room.proto
@ -17,6 +17,8 @@ message RequestMeta {
  string session_id = 6;
  int64 sent_at_ms = 7;
  string app_code = 8;
+  // device_id 只能来自 gateway 已验签 access JWT 的同名 claim；旧 JWT 缺字段时保持空值，不得用 session_id/command_id 伪造。
+  string device_id = 9;
 }

 // CommandResult 统一返回命令是否真正落地，以及落地后的房间版本。
--- a/api/proto/wallet/v1/wallet.pb.go
+++ b/api/proto/wallet/v1/wallet.pb.go
--- a/api/proto/wallet/v1/wallet.proto
+++ b/api/proto/wallet/v1/wallet.proto
@ -92,6 +92,15 @@ message DebitGiftResponse {
  string host_point_template_version = 27;
  // balance_version 是 sender 被扣费资产在本次账务完成后的版本；同 command_id 重放返回首次版本。
  int64 balance_version = 28;
+  // recharge_seven_day_coins / recharge_thirty_day_coins 是扣费时由 wallet owner 固化的 UTC 自然日充值快照。
+  // lucky-gift-service 只能消费这份结算事实做概率分层，不能为了开奖直连钱包库或临时扫描充值流水。
+  int64 recharge_seven_day_coins = 29;
+  int64 recharge_thirty_day_coins = 30;
+  // last_recharged_at_ms 仅在真实 lucky/super_lucky 金币送礼时返回；0 表示近 30 个 UTC 自然日没有充值。
+  int64 last_recharged_at_ms = 31;
+  // paid_at_ms 是 wallet_transactions.created_at_ms 的稳定快照；首次扣费与同 command_id 重放必须完全一致。
+  // room/lucky 只能用该 wallet owner 事实做 UTC 日、小时和充值后短窗归属，不能用 saga 或恢复 worker 时钟替代。
+  int64 paid_at_ms = 32;
 }

 // DebitGiftTarget 是一笔批量送礼中的单个接收方账务快照。
--- a/docs/幸运礼物动态策略V3实现与模拟.md
+++ b/docs/幸运礼物动态策略V3实现与模拟.md
@ -0,0 +1,305 @@
+# 幸运礼物动态策略 V3：实现边界与模拟验收
+
+## 1. 版本边界
+
+本文只描述 `dynamic_v3` 的规则、持久化契约和可重复模拟口径，不改变已经发布的 `fixed_v2` 规则语义，也不代表该策略已在线上自动启用。
+
+- `strategy_version=fixed_v2`：继续按历史不可变规则执行；旧请求或旧记录缺少 `strategy_version` 时必须归一为 `fixed_v2`。
+- `strategy_version=dynamic_v3`：只有显式发布并启用的规则才进入动态水位、充值加权、保底、大奖和六维风控。不能因为服务升级而把存量奖池隐式切换到 V3。
+- 新奖池未配置时返回 `dynamic_v3` 的 `disabled` 草稿。各 App 必须先补齐 50 美元等值金币门槛及六项金额上限，才允许启用。
+- 启用前还必须确认 user/gateway/room 已升级到由 `auth_sessions.device_id` 签入 access JWT，再通过 `room.RequestMeta` 和可恢复 command 原样传递设备作用域。旧 JWT 缺 `device_id` 时 `fixed_v2` 仍兼容，`dynamic_v3` 必须 fail-close，不得用 `session_id`/`command_id` 伪造设备。
+- 启用前还必须确认 user/gateway/room/wallet 已按顺序升级：access JWT 和 room meta 携带 auth session 绑定的可信 `device_id`，wallet 回执携带交易 `paid_at_ms`、充值快照和 `gift_income_coins`。任一动态字段缺失或真实收礼返币比例与规则 `anchor_rate_ppm` 不一致时运行侧 fail-close。
+- 比例、概率和倍率统一使用 ppm，`1_000_000=100%=1x`；钱只使用整数金币；业务时间只使用 UTC epoch milliseconds。
+- 离线模拟使用固定 seed 的 `math/rand`；生产抽奖必须注入不可预测的安全随机源，不能复用模拟 RNG。
+
+## 2. 已确认的产品口径
+
+### 2.1 资金拆分采用 98/1/1
+
+每笔已成功扣费的幸运礼物按整数守恒拆分：
+
+| 去向 | 默认比例 | 作用 |
+| --- | ---: | --- |
+| 公共奖金池 `P` | 98% | 在本抽开奖前先入池，承担用户返奖 |
+| 平台盈利 | 1% | 只记盈利拆账，不进入可返奖余额 |
+| 收礼主播收益 | 1% | 规则计算值必须与钱包已落账回执完全一致，不允许缺字段或其他返币比例静默覆盖规则 |
+
+原图同一行同时出现“抽取 98%”和“92% 可灵活配置”，两者冲突。V3 采用能够与 1%+1% 合计为 100% 的 **98/1/1**；“92%”视为原图笔误，不进入默认配置、代码或模拟。比例可发布为其他值时，三项仍必须非负且合计 100%，不允许出现去向不明的余额。
+
+公共池与主播份额分别向下取整，无法再拆的整币余数归平台盈利，任何价格都满足：
+
+```text
+public_pool_coins + profit_coins + anchor_return_coins = coin_spent
+```
+
+### 2.2 RTP 是观察目标，不是透支承诺
+
+- 发布目标为 98%，正常观察带为 95%～101%（98%±3 个百分点）。
+- RTP 分子是已经开奖形成的不可撤销返奖负债，分母是对应已扣费流水；分母为 0 时是“无有效样本”，不能当成 0% 去触发补偿大奖。
+- 95%～101% 是资金充足且样本量足够时的运营观察目标，不是每抽、每用户、每窗口的硬保证。
+- 当奖池、单次限额或任一风控窗口不足时，安全约束优先；允许窗口 `underpaid` 或短期偏离 95%～101%，禁止为了追 RTP 透支奖池。
+- `settlement_window_wager` 是当前不可变规则版本的真实金币流水阈值。单抽整体计入它开始时所在窗口；若本抽使累计流水达到或超过阈值，下一抽才开启新窗口。`gift_price_reference` 只用于体验阶段的等价抽数，不参与 V3 滚窗。
+
+### 2.3 原图概率表不能作为生产默认概率
+
+原图示例为：
+
+| 倍率 | 概率 | EV 贡献 |
+| ---: | ---: | ---: |
+| 0x | 60% | 0x |
+| 5x | 20% | 1x |
+| 50x | 15% | 7.5x |
+| 200x | 4% | 8x |
+| 1000x | 1% | 10x |
+| 合计 | 100% | **26.5x** |
+
+因此该表的名义 `EV=26.5x`，即 `RTP=2650%`，不可能同时是 98% RTP。它只用于验证原图的 `P/W` 删档、删 0 和重抽分支，不能写入生产默认基础奖档。
+
+`dynamic_v3` 的安全发布草稿采用独立的 98% 静态 EV：`0x@5% + 0.5x@4% + 1x@86% + 2x@5% = 0.98x`。`200x/500x/1000x` 作为大奖集合单独配置，不能在缺少经过成本校验的概率时照搬进基础概率表。
+
+## 3. 一次抽奖的确定顺序
+
+一次真实抽奖按以下顺序完成；同一事务内锁住的状态必须与 draw record 一起提交：
+
+1. `user-service` 把 `auth_sessions.device_id` 签入 access JWT；gateway 验签后写入 room `RequestMeta`，room saga 固化该设备快照，禁止用可轮换的 session 或 command ID 代替。
+2. `wallet-service` 完成真实扣费，并在幂等回执中固化 `coin_spent`、交易 `paid_at_ms`、最近 7/30 个 UTC 自然日充值额、最后充值时间及主播收益金额。
+3. `lucky-gift-service` 只消费上述可信事实，不直连钱包库，不按当前余额、IP、服务时区、恢复时间或客户端自报值推断充值画像和时间归属。
+4. 本抽金币按 98/1/1 拆分；公共池份额先计入 `P`，再比较本抽奖金 `W`。
+5. 按 `app_code + pool_id + rule_version` 读取不可变规则，锁定公共池、用户日状态、72 小时桶/边界事件、连 0 状态和六维风控计数。
+6. 用钱包快照选择充值层级，再对所有非 0 基础档应用水位和最近充值因子；0 档接收剩余概率。
+7. 优先处理已持久化的“消费里程碑大奖 token”，其次判断 RTP 补偿大奖，最后进入普通概率抽奖。
+8. 对选中的 `W` 依次执行奖池、单用户日大奖次数和六维风控检查；任何一项不满足都不能发奖。
+9. 写入抽奖事实、决策快照、奖池/窗口/风控/用户状态及 outbox。钱包返奖状态独立收敛为 `pending/granted/failed`。
+
+这套顺序的核心约束是：先有已落账的扣费事实，再入池，再开奖；任何体验规则都不能制造不存在的资金。
+
+## 4. 动态概率、分层和保底
+
+### 4.1 充值分层
+
+V3 固定有 `novice/normal/advanced` 三层，但两个门槛由每个不可变规则版本配置：
+
+- 最近 7 日和最近 30 日均按 UTC 自然日统计且包含当天；分别覆盖“今天及前 6 个 UTC 日”和“今天及前 29 个 UTC 日”，上界为钱包扣费时刻。
+- 用户进入同时满足两个最低充值门槛的最高层；不能只满足 7 日或只满足 30 日门槛就越级。
+- `novice` 门槛必须是 `0/0`；`normal` 至少一维高于 novice；`advanced` 两维均不得低于 normal，且至少一维严格更高。
+- 阶段阈值相等时算已达到，即使用 `>=`；所有金额门槛按 App 金币口径显式发布。
+
+充值快照由 `wallet-service` 在礼物扣费事务中查询并写入交易 metadata；同一 `command_id` 重放返回首次快照，避免重试时跨层或丢失五分钟加成。
+
+### 4.2 水位和最近充值因子
+
+设某层的非 0 档基础权重为 `base_weight`，则：
+
+```text
+adjusted_weight = base_weight × water_factor × recharge_factor
+```
+
+因子是相对乘法，不是把百分点直接相加：
+
+| 条件 | 默认因子 | 边界 |
+| --- | ---: | --- |
+| `P < low_watermark` | 0.70 | 恰等于低水位时不下调 |
+| `low_watermark <= P <= high_watermark` | 1.00 | 两个端点都属于中水位 |
+| `P > high_watermark` | 1.30 | 恰等于高水位时不上调 |
+| 有可信充值事实且处于充值后窗口 | 1.10 | `[last_recharged_at_ms, last_recharged_at_ms + 300000)` |
+
+例如低水位并处于充值后五分钟时，非 0 权重为 `base × 0.70 × 1.10 = base × 0.77`，不是 `base × 0.80`。五分钟窗口包含起点和第 `299999ms`，不包含第 `300000ms`；未来时间、缺失充值事实或 `last_recharged_at_ms=0` 都不加权。
+
+调整后：若正奖权重和不超过 100%，0 档权重取剩余值；若正奖权重和超过 100%，按相同比例归一化正奖权重并把 0 档置为 0。该归一化只解决概率守恒，不绕过资金和风控。
+
+### 4.3 连续 5 次 0 后的第 6 抽
+
+- `loss_streak` 只在最终可见返奖为 0 时加一，任意正返奖后清零。
+- 前 5 次连续为 0 后，第 6 抽从普通候选中排除 0 档，选择可支付的非 0 档。
+- “第 6 抽不出 0”是有资金、有剩余额度时的体验保证；如果所有正奖都超过 `P` 或六维风控剩余额度，仍返回 0，并记录 `miss_protection_blocked_no_payable_tier`。不得透支来兑现保底。
+
+## 5. `P/W` 安全重抽
+
+`P` 是本抽入池后的公共奖金池可用余额，`W=gift_price × multiplier`。普通抽奖执行：
+
+1. 第一次按当前动态权重抽档。
+2. `W <= P` 且所有风控均允许时直接支付；`W == P` 可以支付，支付后 `P=0`。
+3. 若 `W > P`，同时删除该中奖档和 0 档，再对剩余正奖档重抽。
+4. 重抽仍有 `W > P` 时继续删除该中奖档；0 档只在第一次资金不足时删除一次。
+5. 若最终没有可支付的正奖档，安全回退 0，不改变 `P` 为负数。
+
+原图 `P=800`、单价 10 的脚本化示例只用于分支验收：先抽到 `200x(W=2000)` 时删除 `200x+0x`；若再抽到 `1000x(W=10000)`，再删除 `1000x`；随后只能在仍有权重且 `W<=800` 的正奖中选择。该示例证明重抽语义，不证明原图概率具有可用 RTP。
+
+奖池不足、风险额度不足和个人大奖次数达到上限是不同的审计原因。只有 `W>P` 触发原图规定的“删中奖档并同时删 0”；其他风控拒绝不能伪装成奖池不足。
+
+## 6. 两种大奖机制
+
+大奖集合由 `jackpot_multiplier_ppms` 配置，默认产品集合为 `200x/500x/1000x`。原图没有给出三个大奖之间的概率，因此当前不可变规则明确采用“在可支付集合中等权随机”；这不属于普通基础概率。若产品需要非等权，必须先新增显式权重契约和成本验收，不能从普通奖档概率猜算。
+
+### 6.1 机制一：RTP 亏损补偿大奖
+
+本抽开始时同时满足以下条件，才允许从当前可支付大奖集合随机选择：
+
+- 全局结算 RTP `<= jackpot_global_rtp_max_ppm`，默认 98%；
+- 用户当前 UTC 日 RTP `<= jackpot_user_day_rtp_max_ppm`，默认 96%；
+- 用户滚动 72 小时 RTP `<= jackpot_user_72h_rtp_max_ppm`，默认 96%；
+- 用户本 UTC 日大奖次数 `< max_jackpot_hits_per_user_day`，默认 5；
+- 候选 `W<=P` 且不超过六维风控的最小剩余额度。
+
+任一 RTP 分母为 0、任一 RTP 高于阈值、奖池不足或风控不足，都只回到普通抽奖，不强发大奖。滚动 72 小时是 `[now_ms-72h, now_ms)` 的 UTC 业务窗口，不能替换成“最近 3 个本地自然日”。
+
+### 6.2 机制二：消费里程碑大奖
+
+- `jackpot_spend_threshold_coins` 是各 App 对“50 美元等值幸运礼物金币”的显式换算，服务不读取实时汇率推断。
+- 用户 UTC 日累计消费每跨过一个完整门槛，持久化一个大奖 token；同一流水重试不能重复发 token。消费进度和当日命中次数在 UTC 日切换时归零，但已赚到且因资金不足未消费的 token 保存在用户/奖池状态中，可跨日等待下一抽。
+- 当前抽跨过的门槛只能影响下一抽，不能回头改变已经完成的当前抽。
+- 下一抽优先消费已有 token；若大奖集合因 `P`、日 5 次上限或风控不可支付，token 保留，用户仍获得本次普通抽奖。
+- 同一抽同时满足机制一和机制二时，已承诺的里程碑 token 优先；一个 draw 最多结算一个最终奖档。
+
+原图写的是“定时任务”。实现改为在 owner 事务里按已结算送礼事实同步计算跨过的整数门槛并落 token：结果仍只影响下一抽，但不会出现“用户已经完成门槛、下一抽先于 cron 扫描到达”的竞态，也不需要 cron-service 回扫明细或直接拥有大奖状态。这个事件驱动实现是有意的工程等价替换；若产品需要固定延迟发放，必须另增明确生效时间字段，而不是依赖不确定的扫描周期。
+
+## 7. 六维风控与时间口径
+
+所有启用的 `dynamic_v3` 规则必须配置正数上限：
+
+| 维度 | 配置字段 | UTC 窗口 |
+| --- | --- | --- |
+| 单次返奖 | `max_single_payout` | 当前 draw |
+| 用户小时 | `user_hourly_payout_cap` | 当前 UTC 小时 |
+| 用户日 | `user_daily_payout_cap` | 当前 UTC 自然日 |
+| 设备日 | `device_daily_payout_cap` | 当前 UTC 自然日 |
+| 房间小时 | `room_hourly_payout_cap` | 当前 UTC 小时 |
+| 主播日 | `anchor_daily_payout_cap` | 当前 UTC 自然日 |
+
+一次候选的有效容量是 `P` 和六项剩余额度的最小值。候选金额等于剩余额度时允许，超过任一维度即拒绝；计数更新与 draw record 必须在同一锁定事务内，避免并发抽奖分别看到同一份余额。
+
+设备日 scope 只接受 user-service 已落库 session 的 `device_id`，由签名 JWT 贯通到 room 和 lucky；旧 token/旧 command 缺字段时 `fixed_v2` 可继续重放，但 `dynamic_v3` 必须拒绝开奖，不能回退到 `session_id` 或每单变化的 `command_id`。外部 App 的 device ID 由已认证调用方负责稳定提供，V3 缺失同样拒绝；服务只保存 App 内稳定 hash，避免暴露原始标识。
+
+所有时间范围遵守 `[start_ms,end_ms)`：包含开始毫秒，不包含结束毫秒。UTC 日、UTC 小时、充值 5 分钟和滚动 72 小时都不得使用 `time.Local`、容器时区或客户端时区切分。
+
+## 8. 批量 N 次的语义
+
+`gift_count=N` 表示按顺序执行 N 次抽奖，不是把总金额当成一次抽奖，也不是“只开奖一次但保证中奖”。例如 `gift_count=99` 必须产生 99 次状态推进。
+
+- 总 `coin_spent` 拆成 N 个整数单份，余数从前往后每份加 1；三资金桶使用联合累计配额，保证每一抽 `public_i+profit_i+anchor_i=unit_spent_i`，同时整批三桶精确等于钱包回执总拆账。
+- 第 `i` 抽看到第 `i-1` 抽后的 `P`、连 0、RTP、token、日大奖次数和风控计数；不能并行抽 N 次后再合并。
+- 若第 `i` 抽使当前 RTP 窗口真实累计流水达到或超过 `settlement_window_wager`，第 `i+1` 抽必须先滚到新窗口；不能按 `ceil(window_wager/gift_price_reference)` 折算抽数，也不能把整批强塞进旧窗口后再一次性关窗。
+- 每个子抽用稳定子幂等键（现有约定为 `command_id#序号`）保留独立 draw record；重放整批不能跳过、补写或重复支付其中一抽。
+- 一批内共享状态只锁一次并按顺序在内存推进，最终批量持久化；性能优化不能改变顺序语义。
+- 聚合钱包返奖和房间表现可以按送礼命令合并，但审计仍保留 N 条单抽事实。
+
+外部 App 的 `/lucky-gifts/send` 也遵守同一语义：`dynamic_v3` 逐次执行最多 999 抽、写 `external_lucky_gift_draw_items`，最后只把总奖励聚合返回；外部调用方自行入账，因此不生成 HyApp wallet 返奖 outbox。外部 `dynamic_v3` 必须提交稳定 `device_id` 和真实扣费 `paid_at_ms`，同设备多账号共享设备日上限；但 luck-gateway 目前只有 App allowlist，不能独立证明设备真实性，所以调用方必须在自身认证/请求签名边界内绑定这些值；owner 不得用 `external_user_id`、`request_id` 或请求到达时间兜底。当前外部协议没有可验证的充值 owner 快照，运行侧明确按 `novice` 且不加最近充值因子，不能从 `metadata` 猜充值额。`fixed_v2` 外部请求继续保持缺少新事实的历史兼容路径。
+
+## 9. 接口和配置字段
+
+### 9.1 事实输入
+
+`wallet.v1.DebitGiftResponse` 新增以下幂等回执字段：
+
+- `recharge_seven_day_coins`
+- `recharge_thirty_day_coins`
+- `last_recharged_at_ms`
+- `paid_at_ms`
+
+`luckygift.v1.LuckyGiftMeta` 接收：
+
+- `device_id`（从已验签 access JWT 穿过 room command 恢复链路）
+- `paid_at_ms`（逐目标 wallet transaction 的稳定创建时间）
+- `recharge_7d_coins`
+- `recharge_30d_coins`
+- `last_recharged_at_ms`
+- `gift_income_coins`
+
+`room.v1.RequestMeta.device_id` 只由 gateway 从验签 JWT 的 `device_id` claim 写入；`ExternalGiftDrawRequest.device_id` 由外部认证调用方承担稳定性责任。V3 对两个入口都不提供 session/command fallback。其余结算字段只来自 wallet owner 的成功回执。`request_id` 只做链路追踪；抽奖幂等仍使用 `command_id`。
+
+### 9.2 不可变规则字段
+
+`LuckyGiftRuleConfig` / `lucky_gift_rule_versions` 的 V3 字段分组如下：
+
+| 决策 | 字段 |
+| --- | --- |
+| 版本和目标 | `strategy_version`, `target_rtp_ppm`, `settlement_window_wager`, `control_band_ppm`, `gift_price_reference` |
+| 资金拆分 | `pool_rate_ppm`, `profit_rate_ppm`, `anchor_rate_ppm`, `initial_pool_coins` |
+| 保底和水位 | `loss_streak_guarantee`, `low_watermark_coins`, `low_water_nonzero_factor_ppm`, `high_watermark_coins`, `high_water_nonzero_factor_ppm` |
+| 最近充值 | `recharge_boost_window_ms`, `recharge_boost_factor_ppm` |
+| 大奖 | `jackpot_multiplier_ppms`, `jackpot_global_rtp_max_ppm`, `jackpot_user_day_rtp_max_ppm`, `jackpot_user_72h_rtp_max_ppm`, `jackpot_spend_threshold_coins`, `max_jackpot_hits_per_user_day` |
+| 六维风控 | `max_single_payout`, `user_hourly_payout_cap`, `user_daily_payout_cap`, `device_daily_payout_cap`, `room_hourly_payout_cap`, `anchor_daily_payout_cap` |
+| 充值层级 | `stages[].min_recharge_7d_coins`, `stages[].min_recharge_30d_coins`, `stages[].tiers[]` |
+
+后台沿用现有 `/admin/activity/lucky-gifts/v2/config` 配置入口；URL 中的 `v2` 是接口兼容标识，不等于 `strategy_version`。发布时必须把上述字段完整映射到内部 protobuf、domain 和 MySQL，不允许只在 HTTP JSON 中临时扩字段。
+
+## 10. 持久化与审计
+
+| 表 | V3 事实 |
+| --- | --- |
+| `lucky_gift_rule_versions` | `fixed_v2/dynamic_v3` 不可变版本、资金拆分、水位、大奖门槛和六项上限 |
+| `lucky_gift_stage_tiers` | 三层充值门槛、基础倍率和基础概率 |
+| `lucky_pools` | 公共池 `balance/total_in/total_out`，以及 `profit_total/anchor_income_total/initial_seed_total` |
+| `lucky_rtp_windows` | 全局/奖池窗口的流水、目标返奖、实际返奖和 `open/closed/underpaid` 状态 |
+| `lucky_user_rtp_hour_buckets` | 用户 UTC 小时流水/返奖桶，用于严格滚动 72 小时 |
+| `lucky_user_rtp_boundary_events` | 只补齐 `[now-72h,now)` 首尾两个不足一小时的片段；与完整小时桶组合后不近似、不回扫全量 draw |
+| `lucky_user_strategy_days` | 用户 UTC 日流水、返奖、消费和已命中大奖次数 |
+| `lucky_user_states` | 累计抽数、等价流水、`loss_streak` 和可跨日保留的待消费 token |
+| `lucky_risk_counters` | 用户/设备/房间/主播的 UTC 小时或日累计返奖 |
+| `lucky_draw_records` | 单抽最终奖档、金额、规则版本、候选/奖池/RTP 决策快照和钱包状态 |
+| `external_lucky_gift_draw_items` | 外部 App `gift_count=N` 的 N 条顺序子抽事实；外部聚合行只负责幂等响应 |
+| `lucky_gift_command_locks` | 内部 `app_code+command_id` 首次并发互斥；等待者在首事务提交后回读同一批 draw 事实 |
+| `lucky_gift_outbox` | 钱包补偿与投递审计，不替代 draw 业务事实 |
+
+每条 V3 draw 的审计快照至少要能还原：阶段、规则版本、抽前池余额、本抽入池、可用池、六维最小容量、各档基础/调整后权重及因子、原始档、每次删档/重抽、三项 RTP 条件、大奖机制、token 产生/消费/保留、最终原因和阻断原因。
+
+状态边界：
+
+- `reward_status=pending/granted/failed` 只表示自动钱包入账状态；抽奖一旦向用户展示就形成不可撤销负债，`failed` 表示仍欠用户、必须重放或人工补偿，不能反向释放公共池/RTP/风控额度，也不能取消奖励。已 `granted` 后 IM 失败不能把账务事实改成 `failed`。
+- outbox 使用 `pending/retryable/delivering/delivered/failed`；失败原因、重试次数和锁到期时间必须可查。
+- 规则不可变发布；事故回放必须读取 draw 当时的 `rule_version` 和快照，不能套用最新配置重算。
+
+## 11. 本地模拟矩阵
+
+模拟必须调用与生产相同的纯策略内核，并使用固定 seed 输出人类摘要和 JSON。以下每项都是独立验收，不用一个长跑 RTP 数字替代边界测试：
+
+| 组 | 输入矩阵 | 必须证明 |
+| --- | --- | --- |
+| 名义 EV | 原图 0/5/50/200/1000 概率 | `26.5x/2650%`，`passes_target=false` 是预期成功 |
+| 资金拆分 | 0、1、极小金额、普通金额 | 三份非负且逐笔整数守恒；冷启动只注资一次 |
+| 原图 P/W | `P=800, price=10`，脚本依次命中 5x、200x、1000x | 5x 直付；200x 删除自身+0；1000x 继续删除；最终不透支 |
+| P/W 边界 | `W=P-1/P/P+1`、全部正奖不可付 | 等于可付，大于重抽，候选耗尽回 0，`P` 永不为负 |
+| 连 0 保底 | streak 0～5；第 6 抽资金足/不足 | 第 6 抽排除 0；无可支付正奖时安全回 0并留阻断原因 |
+| 水位 | `low-1/low/low+1/high-1/high/high+1` | 只在 `<low` 下调、`>high` 上调，端点为中水位 |
+| 充值窗口 | 起点、`+299999ms`、`+300000ms`、未来时间、无回执 | 严格 `[start,end)`，只有可信快照生效 |
+| 因子组合 | 低/中/高水位 × 充值开/关 | 因子相乘；概率合计始终 100% |
+| 充值分层 | 各 7/30 日门槛的下 1、等于、上 1 | 必须同时达到两维，选择最高满足层 |
+| 批量 | N=1、N=99、金额有余数 | 恰好 N 次顺序推进，金额守恒，单抽事实与重放一致 |
+| 结算窗口 | 阈值 99、参考价 10、已 10 抽但仅 98 流水，再执行 99 份共 100 金币 | 第 1 抽进入旧窗并使流水到 100，后 98 抽进入新窗；证明不按抽数提前滚动 |
+| 大奖机制一 | 全局/当日/72h 各自通过和失败、分母 0 | 三门同时通过才有资格，零样本不触发 |
+| 大奖机制二 | 门槛前、恰好跨过、一次跨多个门槛、资金不足 | token 只影响下一抽，幂等产生，资金不足保留 |
+| 大奖集合 | 200x/500x/1000x 分别可付/不可付 | 只在可付集合随机，不能选中后透支 |
+| 日 5 次 | 已中 4 次、5 次；UTC 日边界 | 第 5 次可中，第 6 次大奖被阻断，新 UTC 日重新计数 |
+| 六维风控 | 每一维分别取 `W=remaining` 和 `W=remaining+1` | 等于允许，超过任一维拒绝，原因可审计 |
+| 组合优先级 | token + RTP 补偿 + 连 0 + 低水位 + 充值 | token 优先，其后 RTP，再普通；安全门永远最后裁决 |
+| 并发/幂等 | 同 command 重放、同用户并发状态版本 | 只结算一次；状态无丢失更新，奖池不为负 |
+| 有资金长跑 | 固定 seed、足量冷启动资金、各充值层 | 报告实际 RTP/命中率/池底，不把 95%～101%当资金不足时硬断言 |
+
+### 11.1 可重复命令
+
+```bash
+go test ./services/lucky-gift-service/internal/domain/luckygift
+go test ./services/wallet-service/internal/storage/mysql -run 'LuckyGiftRechargeSnapshot'
+go run ./services/lucky-gift-service/cmd/strategy-sim \
+  -seed 20260712 \
+  -monte-carlo-draws 100000 \
+  -long-run-draws 100000 \
+  -group-long-run-draws 30000 \
+  -json-out /tmp/lucky-gift-dynamic-v3-simulation.json
+```
+
+策略模拟进程只有在全部场景满足断言时退出 0。总报告必须同时满足：
+
+- `nominal_probability_table.expected_multiplier=26.5`；
+- `nominal_probability_table.nominal_rtp_percent=2650`；
+- `nominal_probability_table.passes_target=false`；
+- `all_passed=true`；
+- 所有场景输出固定 seed、输入、最终奖档/状态、池底和阻断原因，不能只打印“通过”。
+
+## 12. 上线前验收门
+
+1. 存量规则空 `strategy_version` 读取和重放仍为 `fixed_v2`，且无需补 V3 金额字段。
+2. 新 `dynamic_v3` 启用规则的三项拆分必须合计 100%，每层基础概率必须合计 100%，静态 EV 必须落在目标 RTP±控制带内。
+3. 50 美元等值金币、低/高水位、三层充值门槛、大奖集合、日次数和六项风控都必须按 App 明确配置；不能依赖代码默认值直接上线。
+4. user JWT、gateway/room meta、wallet 回执、lucky-gift 请求、protobuf 生成代码、配置读写和 MySQL schema 必须端到端包含新增字段；动态入口缺可信 `device_id` 或 owner `paid_at_ms` 必须 fail-close。
+5. 本地单测、完整模拟、`make proto`、`make test` 通过后，仍需用隔离奖池灰度；灰度验收重点是奖池不为负、幂等不重复发奖、审计可回放，而不是短窗口 RTP 恰好等于 98%。
--- a/docs/幸运礼物动态策略V3模拟结果-20260712.json
+++ b/docs/幸运礼物动态策略V3模拟结果-20260712.json
--- a/server/admin/internal/modules/luckygift/handler.go
+++ b/server/admin/internal/modules/luckygift/handler.go
@ -30,18 +30,41 @@ func New(luckyGift luckygiftadmin.Client, requestTimeout time.Duration, audit sh
 }

 type configRequest struct {
-	AppCode                  string     `json:"app_code"`
-	PoolID                   string     `json:"pool_id"`
-	Enabled                  bool       `json:"enabled"`
-	TargetRTPPercent         float64    `json:"target_rtp_percent"`
-	PoolRatePercent          float64    `json:"pool_rate_percent"`
-	SettlementWindowWager    int64      `json:"settlement_window_wager"`
-	ControlBandPercent       float64    `json:"control_band_percent"`
-	GiftPriceReference       int64      `json:"gift_price_reference"`
-	NoviceMaxEquivalentDraws int64      `json:"novice_max_equivalent_draws"`
-	NormalMaxEquivalentDraws int64      `json:"normal_max_equivalent_draws"`
-	EffectiveFromMS          int64      `json:"effective_from_ms"`
-	Stages                   []stageDTO `json:"stages"`
+	AppCode                       string     `json:"app_code"`
+	PoolID                        string     `json:"pool_id"`
+	StrategyVersion               string     `json:"strategy_version"`
+	Enabled                       bool       `json:"enabled"`
+	TargetRTPPercent              float64    `json:"target_rtp_percent"`
+	PoolRatePercent               float64    `json:"pool_rate_percent"`
+	ProfitRatePercent             float64    `json:"profit_rate_percent"`
+	AnchorRatePercent             float64    `json:"anchor_rate_percent"`
+	SettlementWindowWager         int64      `json:"settlement_window_wager"`
+	ControlBandPercent            float64    `json:"control_band_percent"`
+	GiftPriceReference            int64      `json:"gift_price_reference"`
+	NoviceMaxEquivalentDraws      int64      `json:"novice_max_equivalent_draws"`
+	NormalMaxEquivalentDraws      int64      `json:"normal_max_equivalent_draws"`
+	EffectiveFromMS               int64      `json:"effective_from_ms"`
+	InitialPoolCoins              int64      `json:"initial_pool_coins"`
+	LossStreakGuarantee           int64      `json:"loss_streak_guarantee"`
+	LowWatermarkCoins             int64      `json:"low_watermark_coins"`
+	LowWaterNonzeroFactorPercent  float64    `json:"low_water_nonzero_factor_percent"`
+	HighWatermarkCoins            int64      `json:"high_watermark_coins"`
+	HighWaterNonzeroFactorPercent float64    `json:"high_water_nonzero_factor_percent"`
+	RechargeBoostWindowMS         int64      `json:"recharge_boost_window_ms"`
+	RechargeBoostFactorPercent    float64    `json:"recharge_boost_factor_percent"`
+	JackpotMultipliers            []float64  `json:"jackpot_multipliers"`
+	JackpotGlobalRTPMaxPercent    float64    `json:"jackpot_global_rtp_max_percent"`
+	JackpotUserDayRTPMaxPercent   float64    `json:"jackpot_user_day_rtp_max_percent"`
+	JackpotUser72hRTPMaxPercent   float64    `json:"jackpot_user_72h_rtp_max_percent"`
+	JackpotSpendThresholdCoins    int64      `json:"jackpot_spend_threshold_coins"`
+	MaxJackpotHitsPerUserDay      int64      `json:"max_jackpot_hits_per_user_day"`
+	MaxSinglePayout               int64      `json:"max_single_payout"`
+	UserHourlyPayoutCap           int64      `json:"user_hourly_payout_cap"`
+	UserDailyPayoutCap            int64      `json:"user_daily_payout_cap"`
+	DeviceDailyPayoutCap          int64      `json:"device_daily_payout_cap"`
+	RoomHourlyPayoutCap           int64      `json:"room_hourly_payout_cap"`
+	AnchorDailyPayoutCap          int64      `json:"anchor_daily_payout_cap"`
+	Stages                        []stageDTO `json:"stages"`
 }

 type configDTO struct {
@ -52,8 +75,10 @@ type configDTO struct {
 }

 type stageDTO struct {
-	Stage string    `json:"stage"`
-	Tiers []tierDTO `json:"tiers"`
+	Stage               string    `json:"stage"`
+	MinRecharge7DCoins  int64     `json:"min_recharge_7d_coins"`
+	MinRecharge30DCoins int64     `json:"min_recharge_30d_coins"`
+	Tiers               []tierDTO `json:"tiers"`
 }

 type tierDTO struct {
@ -305,23 +330,48 @@ func configToProto(req configRequest) *luckygiftv1.LuckyGiftRuleConfig {
 			})
 		}
 		stages = append(stages, &luckygiftv1.LuckyGiftRuleStage{
-			Stage: stageName,
-			Tiers: tiers,
+			Stage:                stageName,
+			MinRecharge_7DCoins:  stage.MinRecharge7DCoins,
+			MinRecharge_30DCoins: stage.MinRecharge30DCoins,
+			Tiers:                tiers,
 		})
 	}
 	return &luckygiftv1.LuckyGiftRuleConfig{
-		AppCode:                  strings.ToLower(strings.TrimSpace(req.AppCode)),
-		PoolId:                   strings.TrimSpace(req.PoolID),
-		Enabled:                  req.Enabled,
-		TargetRtpPpm:             percentToPPM(req.TargetRTPPercent),
-		PoolRatePpm:              percentToPPM(req.PoolRatePercent),
-		SettlementWindowWager:    req.SettlementWindowWager,
-		ControlBandPpm:           percentToPPM(req.ControlBandPercent),
-		GiftPriceReference:       req.GiftPriceReference,
-		NoviceMaxEquivalentDraws: req.NoviceMaxEquivalentDraws,
-		NormalMaxEquivalentDraws: req.NormalMaxEquivalentDraws,
-		EffectiveFromMs:          req.EffectiveFromMS,
-		Stages:                   stages,
+		AppCode:                    strings.ToLower(strings.TrimSpace(req.AppCode)),
+		PoolId:                     strings.TrimSpace(req.PoolID),
+		StrategyVersion:            strings.ToLower(strings.TrimSpace(req.StrategyVersion)),
+		Enabled:                    req.Enabled,
+		TargetRtpPpm:               percentToPPM(req.TargetRTPPercent),
+		PoolRatePpm:                percentToPPM(req.PoolRatePercent),
+		ProfitRatePpm:              percentToPPM(req.ProfitRatePercent),
+		AnchorRatePpm:              percentToPPM(req.AnchorRatePercent),
+		SettlementWindowWager:      req.SettlementWindowWager,
+		ControlBandPpm:             percentToPPM(req.ControlBandPercent),
+		GiftPriceReference:         req.GiftPriceReference,
+		NoviceMaxEquivalentDraws:   req.NoviceMaxEquivalentDraws,
+		NormalMaxEquivalentDraws:   req.NormalMaxEquivalentDraws,
+		EffectiveFromMs:            req.EffectiveFromMS,
+		InitialPoolCoins:           req.InitialPoolCoins,
+		LossStreakGuarantee:        req.LossStreakGuarantee,
+		LowWatermarkCoins:          req.LowWatermarkCoins,
+		LowWaterNonzeroFactorPpm:   percentToPPM(req.LowWaterNonzeroFactorPercent),
+		HighWatermarkCoins:         req.HighWatermarkCoins,
+		HighWaterNonzeroFactorPpm:  percentToPPM(req.HighWaterNonzeroFactorPercent),
+		RechargeBoostWindowMs:      req.RechargeBoostWindowMS,
+		RechargeBoostFactorPpm:     percentToPPM(req.RechargeBoostFactorPercent),
+		JackpotMultiplierPpms:      multipliersToPPM(req.JackpotMultipliers),
+		JackpotGlobalRtpMaxPpm:     percentToPPM(req.JackpotGlobalRTPMaxPercent),
+		JackpotUserDayRtpMaxPpm:    percentToPPM(req.JackpotUserDayRTPMaxPercent),
+		JackpotUser_72HRtpMaxPpm:   percentToPPM(req.JackpotUser72hRTPMaxPercent),
+		JackpotSpendThresholdCoins: req.JackpotSpendThresholdCoins,
+		MaxJackpotHitsPerUserDay:   req.MaxJackpotHitsPerUserDay,
+		MaxSinglePayout:            req.MaxSinglePayout,
+		UserHourlyPayoutCap:        req.UserHourlyPayoutCap,
+		UserDailyPayoutCap:         req.UserDailyPayoutCap,
+		DeviceDailyPayoutCap:       req.DeviceDailyPayoutCap,
+		RoomHourlyPayoutCap:        req.RoomHourlyPayoutCap,
+		AnchorDailyPayoutCap:       req.AnchorDailyPayoutCap,
+		Stages:                     stages,
 	}
 }

@ -342,8 +392,10 @@ func configFromProto(config *luckygiftv1.LuckyGiftRuleConfig) configDTO {
 			})
 		}
 		stages = append(stages, stageDTO{
-			Stage: stage.GetStage(),
-			Tiers: tiers,
+			Stage:               stage.GetStage(),
+			MinRecharge7DCoins:  stage.GetMinRecharge_7DCoins(),
+			MinRecharge30DCoins: stage.GetMinRecharge_30DCoins(),
+			Tiers:               tiers,
 		})
 	}
 	poolID := strings.TrimSpace(config.GetPoolId())
@ -352,18 +404,41 @@ func configFromProto(config *luckygiftv1.LuckyGiftRuleConfig) configDTO {
 		CreatedByAdminID: config.GetCreatedByAdminId(),
 		CreatedAtMS:      config.GetCreatedAtMs(),
 		configRequest: configRequest{
-			AppCode:                  config.GetAppCode(),
-			PoolID:                   poolID,
-			Enabled:                  config.GetEnabled(),
-			TargetRTPPercent:         ppmToPercent(config.GetTargetRtpPpm()),
-			PoolRatePercent:          ppmToPercent(config.GetPoolRatePpm()),
-			SettlementWindowWager:    config.GetSettlementWindowWager(),
-			ControlBandPercent:       ppmToPercent(config.GetControlBandPpm()),
-			GiftPriceReference:       config.GetGiftPriceReference(),
-			NoviceMaxEquivalentDraws: config.GetNoviceMaxEquivalentDraws(),
-			NormalMaxEquivalentDraws: config.GetNormalMaxEquivalentDraws(),
-			EffectiveFromMS:          config.GetEffectiveFromMs(),
-			Stages:                   stages,
+			AppCode:                       config.GetAppCode(),
+			PoolID:                        poolID,
+			StrategyVersion:               config.GetStrategyVersion(),
+			Enabled:                       config.GetEnabled(),
+			TargetRTPPercent:              ppmToPercent(config.GetTargetRtpPpm()),
+			PoolRatePercent:               ppmToPercent(config.GetPoolRatePpm()),
+			ProfitRatePercent:             ppmToPercent(config.GetProfitRatePpm()),
+			AnchorRatePercent:             ppmToPercent(config.GetAnchorRatePpm()),
+			SettlementWindowWager:         config.GetSettlementWindowWager(),
+			ControlBandPercent:            ppmToPercent(config.GetControlBandPpm()),
+			GiftPriceReference:            config.GetGiftPriceReference(),
+			NoviceMaxEquivalentDraws:      config.GetNoviceMaxEquivalentDraws(),
+			NormalMaxEquivalentDraws:      config.GetNormalMaxEquivalentDraws(),
+			EffectiveFromMS:               config.GetEffectiveFromMs(),
+			InitialPoolCoins:              config.GetInitialPoolCoins(),
+			LossStreakGuarantee:           config.GetLossStreakGuarantee(),
+			LowWatermarkCoins:             config.GetLowWatermarkCoins(),
+			LowWaterNonzeroFactorPercent:  ppmToPercent(config.GetLowWaterNonzeroFactorPpm()),
+			HighWatermarkCoins:            config.GetHighWatermarkCoins(),
+			HighWaterNonzeroFactorPercent: ppmToPercent(config.GetHighWaterNonzeroFactorPpm()),
+			RechargeBoostWindowMS:         config.GetRechargeBoostWindowMs(),
+			RechargeBoostFactorPercent:    ppmToPercent(config.GetRechargeBoostFactorPpm()),
+			JackpotMultipliers:            ppmsToMultipliers(config.GetJackpotMultiplierPpms()),
+			JackpotGlobalRTPMaxPercent:    ppmToPercent(config.GetJackpotGlobalRtpMaxPpm()),
+			JackpotUserDayRTPMaxPercent:   ppmToPercent(config.GetJackpotUserDayRtpMaxPpm()),
+			JackpotUser72hRTPMaxPercent:   ppmToPercent(config.GetJackpotUser_72HRtpMaxPpm()),
+			JackpotSpendThresholdCoins:    config.GetJackpotSpendThresholdCoins(),
+			MaxJackpotHitsPerUserDay:      config.GetMaxJackpotHitsPerUserDay(),
+			MaxSinglePayout:               config.GetMaxSinglePayout(),
+			UserHourlyPayoutCap:           config.GetUserHourlyPayoutCap(),
+			UserDailyPayoutCap:            config.GetUserDailyPayoutCap(),
+			DeviceDailyPayoutCap:          config.GetDeviceDailyPayoutCap(),
+			RoomHourlyPayoutCap:           config.GetRoomHourlyPayoutCap(),
+			AnchorDailyPayoutCap:          config.GetAnchorDailyPayoutCap(),
+			Stages:                        stages,
 		},
 	}
 }
@ -403,10 +478,26 @@ func multiplierToPPM(value float64) int64 {
 	return int64(math.Round(value * 1_000_000))
 }

+func multipliersToPPM(values []float64) []int64 {
+	out := make([]int64, 0, len(values))
+	for _, value := range values {
+		out = append(out, multiplierToPPM(value))
+	}
+	return out
+}
+
 func ppmToMultiplier(value int64) float64 {
 	return float64(value) / 1_000_000
 }

+func ppmsToMultipliers(values []int64) []float64 {
+	out := make([]float64, 0, len(values))
+	for _, value := range values {
+		out = append(out, ppmToMultiplier(value))
+	}
+	return out
+}
+
 func drawFromProto(draw *luckygiftv1.LuckyGiftDrawResult) drawDTO {
 	if draw == nil {
 		return drawDTO{}
--- a/server/admin/internal/modules/luckygift/handler_test.go
+++ b/server/admin/internal/modules/luckygift/handler_test.go
@ -137,3 +137,73 @@ func TestConfigFromProtoConvertsPPMToBusinessUnits(t *testing.T) {
 		t.Fatalf("probability percent = %v, want 22", config.Stages[0].Tiers[0].ProbabilityPercent)
 	}
 }
+
+func TestDynamicConfigAdminMappingRoundTrip(t *testing.T) {
+	protoConfig := configToProto(configRequest{
+		AppCode:                       " LALU ",
+		PoolID:                        " lucky ",
+		StrategyVersion:               " DYNAMIC_V3 ",
+		Enabled:                       true,
+		TargetRTPPercent:              98,
+		PoolRatePercent:               98,
+		ProfitRatePercent:             1,
+		AnchorRatePercent:             1,
+		SettlementWindowWager:         1_000_000,
+		ControlBandPercent:            3,
+		GiftPriceReference:            100,
+		InitialPoolCoins:              1_000_000,
+		LossStreakGuarantee:           5,
+		LowWatermarkCoins:             10_000_000,
+		LowWaterNonzeroFactorPercent:  70,
+		HighWatermarkCoins:            20_000_000,
+		HighWaterNonzeroFactorPercent: 130,
+		RechargeBoostWindowMS:         300_000,
+		RechargeBoostFactorPercent:    110,
+		JackpotMultipliers:            []float64{200, 500, 1000},
+		JackpotGlobalRTPMaxPercent:    98,
+		JackpotUserDayRTPMaxPercent:   96,
+		JackpotUser72hRTPMaxPercent:   96,
+		JackpotSpendThresholdCoins:    5_000,
+		MaxJackpotHitsPerUserDay:      5,
+		MaxSinglePayout:               10_000,
+		UserHourlyPayoutCap:           20_000,
+		UserDailyPayoutCap:            30_000,
+		DeviceDailyPayoutCap:          40_000,
+		RoomHourlyPayoutCap:           50_000,
+		AnchorDailyPayoutCap:          60_000,
+		Stages: []stageDTO{{
+			Stage:               " normal ",
+			MinRecharge7DCoins:  7_000,
+			MinRecharge30DCoins: 30_000,
+			Tiers:               []tierDTO{{Multiplier: 1, ProbabilityPercent: 100, Enabled: true}},
+		}},
+	})
+
+	if protoConfig.GetStrategyVersion() != "dynamic_v3" || protoConfig.GetProfitRatePpm() != 10_000 || protoConfig.GetAnchorRatePpm() != 10_000 {
+		t.Fatalf("strategy/fund split proto mismatch: %+v", protoConfig)
+	}
+	if protoConfig.GetLowWaterNonzeroFactorPpm() != 700_000 || protoConfig.GetHighWaterNonzeroFactorPpm() != 1_300_000 || protoConfig.GetRechargeBoostFactorPpm() != 1_100_000 {
+		t.Fatalf("dynamic factors lost precision in admin mapping: %+v", protoConfig)
+	}
+	if got := protoConfig.GetJackpotMultiplierPpms(); len(got) != 3 || got[0] != 200_000_000 || got[2] != 1_000_000_000 {
+		t.Fatalf("jackpot multiplier ppms=%v, want 200x/500x/1000x", got)
+	}
+	stage := protoConfig.GetStages()[0]
+	if stage.GetMinRecharge_7DCoins() != 7_000 || stage.GetMinRecharge_30DCoins() != 30_000 {
+		t.Fatalf("stage recharge thresholds were not mapped: %+v", stage)
+	}
+
+	dto := configFromProto(protoConfig)
+	if dto.StrategyVersion != "dynamic_v3" || dto.ProfitRatePercent != 1 || dto.AnchorRatePercent != 1 {
+		t.Fatalf("strategy/fund split DTO mismatch: %+v", dto)
+	}
+	if dto.LowWaterNonzeroFactorPercent != 70 || dto.HighWaterNonzeroFactorPercent != 130 || dto.RechargeBoostFactorPercent != 110 {
+		t.Fatalf("dynamic factor DTO mismatch: %+v", dto)
+	}
+	if len(dto.JackpotMultipliers) != 3 || dto.JackpotMultipliers[1] != 500 || dto.JackpotUser72hRTPMaxPercent != 96 {
+		t.Fatalf("jackpot DTO mismatch: %+v", dto)
+	}
+	if dto.MaxSinglePayout != 10_000 || dto.AnchorDailyPayoutCap != 60_000 || dto.Stages[0].MinRecharge30DCoins != 30_000 {
+		t.Fatalf("risk/stage DTO mismatch: %+v", dto)
+	}
+}
--- a/server/luck-gateway/internal/integration/luckygiftclient/client.go
+++ b/server/luck-gateway/internal/integration/luckygiftclient/client.go
@ -14,6 +14,7 @@ type SendCommand struct {
 	AppCode        string
 	RequestID      string
 	ExternalUserID string
+	DeviceID       string
 	GiftCount      int64
 	UnitAmount     int64
 	TotalAmount    int64
@ -59,6 +60,7 @@ func (c *GRPCClient) SendLuckyGift(ctx context.Context, cmd SendCommand) (SendRe
 		},
 		AppCode:        cmd.AppCode,
 		ExternalUserId: cmd.ExternalUserID,
+		DeviceId:       cmd.DeviceID,
 		RequestId:      cmd.RequestID,
 		GiftCount:      cmd.GiftCount,
 		UnitAmount:     cmd.UnitAmount,
--- a/server/luck-gateway/internal/modules/luckygift/handler.go
+++ b/server/luck-gateway/internal/modules/luckygift/handler.go
@ -17,24 +17,29 @@ type Handler struct {
 	client         luckygiftclient.Client
 	allowedApps    map[string]struct{}
 	requestTimeout time.Duration
-	now            func() time.Time
 }

 func New(client luckygiftclient.Client, requestTimeout time.Duration, allowedApps map[string]struct{}) *Handler {
 	if requestTimeout <= 0 {
 		requestTimeout = 3 * time.Second
 	}
-	return &Handler{client: client, allowedApps: cloneAllowedApps(allowedApps), requestTimeout: requestTimeout, now: time.Now}
+	return &Handler{client: client, allowedApps: cloneAllowedApps(allowedApps), requestTimeout: requestTimeout}
 }

 type sendRequest struct {
-	AppCode        string         `json:"app_code"`
-	RequestID      string         `json:"request_id"`
-	ExternalUserID string         `json:"external_user_id"`
-	GiftCount      int64          `json:"gift_count"`
-	UnitAmount     int64          `json:"unit_amount"`
-	Currency       string         `json:"currency"`
-	Metadata       map[string]any `json:"metadata"`
+	AppCode        string `json:"app_code"`
+	RequestID      string `json:"request_id"`
+	ExternalUserID string `json:"external_user_id"`
+	// DeviceID 由外部 App 在自己的认证/请求签名边界内绑定。
+	// luck-gateway 目前只做 App allowlist，不能独立证明该值来自真实设备；dynamic_v3 由 owner 对缺失值 fail-close。
+	DeviceID string `json:"device_id"`
+	// PaidAtMS 是外部 App 自己完成扣费的 UTC epoch ms；调用方必须把它纳入自己的认证/签名边界。
+	// gateway 不用到达时间替代。fixed_v2 允许 0 兼容，dynamic_v3 由 owner 读取规则后强制要求正值。
+	PaidAtMS   int64          `json:"paid_at_ms"`
+	GiftCount  int64          `json:"gift_count"`
+	UnitAmount int64          `json:"unit_amount"`
+	Currency   string         `json:"currency"`
+	Metadata   map[string]any `json:"metadata"`
 }

 func (h *Handler) Send(w http.ResponseWriter, r *http.Request) {
@ -63,14 +68,14 @@ func (h *Handler) Send(w http.ResponseWriter, r *http.Request) {
 		AppCode:        appCode,
 		RequestID:      strings.TrimSpace(req.RequestID),
 		ExternalUserID: strings.TrimSpace(req.ExternalUserID),
+		DeviceID:       strings.TrimSpace(req.DeviceID),
 		GiftCount:      req.GiftCount,
 		UnitAmount:     req.UnitAmount,
 		TotalAmount:    req.GiftCount * req.UnitAmount,
 		Currency:       strings.TrimSpace(req.Currency),
 		MetadataJSON:   metadataJSON(req.Metadata),
-		// 外部 HTTP 契约不暴露 pool_id/paid_at_ms；pool 由 owner service 默认规则选择，支付完成时间使用网关服务端 UTC 时间，
-		// 避免外部 App 通过请求体影响奖池分桶、预算日或风控窗口。
-		PaidAtMS: normalizePaidAt(h.now),
+		// pool 仍由 owner 默认规则选择；paid_at_ms 则必须保持外部账务事实，不能改写成 gateway 收包时间。
+		PaidAtMS: req.PaidAtMS,
 	})
 	if err != nil {
 		response.Fail(w, http.StatusInternalServerError, response.CodeServerError, requestID, "send lucky gift failed")
@ -98,9 +103,20 @@ func (r sendRequest) validate() error {
 	if len(strings.TrimSpace(r.ExternalUserID)) > 128 {
 		return errors.New("external_user_id is too long")
 	}
+	if len(strings.TrimSpace(r.DeviceID)) > 128 {
+		return errors.New("device_id is too long")
+	}
+	if r.PaidAtMS < 0 {
+		return errors.New("paid_at_ms is invalid")
+	}
+	// 不在这里统一要求 device_id：网关无法获知本次命中的不可变规则是 fixed_v2 还是 dynamic_v3。
+	// owner 读到规则后对 dynamic_v3 权威拒绝空值，fixed_v2 继续兼容旧调用方。
 	if r.GiftCount <= 0 || r.UnitAmount <= 0 {
 		return errors.New("gift_count and unit_amount must be positive")
 	}
+	if r.GiftCount > 999 {
+		return errors.New("gift_count cannot exceed 999")
+	}
 	// 网关只接受数量和单价；total_amount 由服务端计算，避免外部 App SDK 或恶意调用方传入不一致账面金额。
 	if r.GiftCount > (1<<63-1)/r.UnitAmount {
 		return errors.New("gift amount is too large")
@ -127,10 +143,6 @@ func metadataJSON(value map[string]any) string {
 	return string(body)
 }

-func normalizePaidAt(now func() time.Time) int64 {
-	return now().UTC().UnixMilli()
-}
-
 func (h *Handler) isAllowedApp(appCode string) bool {
 	if len(h.allowedApps) == 0 {
 		return false
--- a/server/luck-gateway/internal/modules/luckygift/handler_test.go
+++ b/server/luck-gateway/internal/modules/luckygift/handler_test.go
@ -30,7 +30,7 @@ func (f *fakeClient) SendLuckyGift(_ context.Context, cmd luckygiftclient.SendCo
 func TestSendAcceptsAllowedAppAndComputesAmount(t *testing.T) {
 	client := &fakeClient{}
 	handler := testRouter(client, "aslan,yumi")
-	body := []byte(`{"app_code":"Aslan","request_id":"req-1","external_user_id":"u-1001","gift_count":3,"unit_amount":7,"currency":"COIN","metadata":{"gift":"rose"}}`)
+	body := []byte(`{"app_code":"Aslan","request_id":"req-1","external_user_id":"u-1001","device_id":"device-attested-by-aslan","paid_at_ms":1700000000000,"gift_count":3,"unit_amount":7,"currency":"COIN","metadata":{"gift":"rose"}}`)
 	req := httptest.NewRequest(http.MethodPost, "/api/v1/lucky-gifts/send", bytes.NewReader(body))
 	rec := httptest.NewRecorder()

@ -41,12 +41,27 @@ func TestSendAcceptsAllowedAppAndComputesAmount(t *testing.T) {
 	if client.calls != 1 {
 		t.Fatalf("client calls=%d", client.calls)
 	}
-	if client.got.AppCode != "aslan" || client.got.RequestID != "req-1" || client.got.TotalAmount != 21 || client.got.GiftCount != 3 {
+	if client.got.AppCode != "aslan" || client.got.RequestID != "req-1" || client.got.DeviceID != "device-attested-by-aslan" || client.got.PaidAtMS != 1700000000000 || client.got.TotalAmount != 21 || client.got.GiftCount != 3 {
 		t.Fatalf("unexpected command: %+v", client.got)
 	}
 }

-func TestSendRejectsPoolAndPaidAtOverrides(t *testing.T) {
+func TestSendKeepsMissingDeviceCompatibleForFixedV2OwnerDecision(t *testing.T) {
+	client := &fakeClient{}
+	handler := testRouter(client, "aslan")
+	// luck-gateway 不读规则版本，因此旧 fixed_v2 调用方可继续缺省 device_id；
+	// 如果本 App 已发布 dynamic_v3，lucky-gift owner 会在规则事务内明确拒绝。
+	body := []byte(`{"app_code":"aslan","request_id":"req-fixed-legacy","external_user_id":"u-legacy","gift_count":1,"unit_amount":7}`)
+	req := httptest.NewRequest(http.MethodPost, "/api/v1/lucky-gifts/send", bytes.NewReader(body))
+	rec := httptest.NewRecorder()
+
+	handler.ServeHTTP(rec, req)
+	if rec.Code != http.StatusOK || client.calls != 1 || client.got.DeviceID != "" {
+		t.Fatalf("fixed-compatible request status=%d calls=%d command=%+v body=%s", rec.Code, client.calls, client.got, rec.Body.String())
+	}
+}
+
+func TestSendRejectsPoolOverride(t *testing.T) {
 	client := &fakeClient{}
 	handler := testRouter(client, "aslan")
 	body := []byte(`{"app_code":"aslan","request_id":"req-1","external_user_id":"u-1001","pool_id":"pool-1","paid_at_ms":1700000000000,"gift_count":1,"unit_amount":7}`)
@ -62,6 +77,19 @@ func TestSendRejectsPoolAndPaidAtOverrides(t *testing.T) {
 	}
 }

+func TestSendRejectsNegativePaidAt(t *testing.T) {
+	client := &fakeClient{}
+	handler := testRouter(client, "aslan")
+	body := []byte(`{"app_code":"aslan","request_id":"req-negative-paid-at","external_user_id":"u-1001","paid_at_ms":-1,"gift_count":1,"unit_amount":7}`)
+	req := httptest.NewRequest(http.MethodPost, "/api/v1/lucky-gifts/send", bytes.NewReader(body))
+	rec := httptest.NewRecorder()
+
+	handler.ServeHTTP(rec, req)
+	if rec.Code != http.StatusBadRequest || client.calls != 0 {
+		t.Fatalf("negative paid_at_ms status=%d calls=%d body=%s", rec.Code, client.calls, rec.Body.String())
+	}
+}
+
 func TestSendRejectsDisallowedAppBeforeClientCall(t *testing.T) {
 	client := &fakeClient{}
 	handler := testRouter(client, "aslan,yumi")
@ -100,6 +128,19 @@ func TestSendRejectsInvalidAmount(t *testing.T) {
 	}
 }

+func TestSendRejectsMoreThan999SequentialDraws(t *testing.T) {
+	client := &fakeClient{}
+	handler := testRouter(client, "aslan")
+	body := []byte(`{"app_code":"aslan","request_id":"req-1","external_user_id":"u-1","gift_count":1000,"unit_amount":1}`)
+	req := httptest.NewRequest(http.MethodPost, "/api/v1/lucky-gifts/send", bytes.NewReader(body))
+	rec := httptest.NewRecorder()
+
+	handler.ServeHTTP(rec, req)
+	if rec.Code != http.StatusBadRequest || client.calls != 0 {
+		t.Fatalf("oversized sequential draw status=%d calls=%d body=%s", rec.Code, client.calls, rec.Body.String())
+	}
+}
+
 func TestSendRejectsTooLongExternalFields(t *testing.T) {
 	client := &fakeClient{}
 	handler := testRouter(client, "aslan")
--- a/services/gateway-service/internal/auth/jwt.go
+++ b/services/gateway-service/internal/auth/jwt.go
@ -20,9 +20,11 @@ const (
 // Claims 是 gateway 从 access token 中消费的最小用户状态快照。
 // 它只用于入口鉴权和 profile gate，不替代 user-service 的用户主数据。
 type Claims struct {
-	AppCode                string
-	UserID                 int64
-	SessionID              string
+	AppCode   string
+	UserID    int64
+	SessionID string
+	// DeviceID 是 user-service 从 auth_session 签入 access token 的设备绑定；旧 token 缺字段时保持为空。
+	DeviceID               string
 	ProfileCompleted       bool
 	OnboardingStatus       string
 	AccessTokenExpiresAtMS int64
@ -84,6 +86,7 @@ func (v *Verifier) Verify(header string) (Claims, error) {
 	profileCompleted, _ := claims["profile_completed"].(bool)
 	onboardingStatus, _ := claims["onboarding_status"].(string)
 	sessionID, _ := claims["sid"].(string)
+	deviceID, _ := claims["device_id"].(string)
 	appCode, _ := claims["app_code"].(string)
 	expiresAtMS := claimUnixSecondsMS(claims["exp"])

@ -91,6 +94,7 @@ func (v *Verifier) Verify(header string) (Claims, error) {
 		AppCode:                appcode.Normalize(appCode),
 		UserID:                 userID,
 		SessionID:              strings.TrimSpace(sessionID),
+		DeviceID:               strings.TrimSpace(deviceID),
 		ProfileCompleted:       profileCompleted,
 		OnboardingStatus:       strings.TrimSpace(onboardingStatus),
 		AccessTokenExpiresAtMS: expiresAtMS,
@ -150,6 +154,13 @@ func SessionIDFromContext(ctx context.Context) string {
 	return strings.TrimSpace(claims.SessionID)
 }

+// DeviceIDFromContext 只返回已验签 access token 的设备 claim。
+// 不从请求体、header 或 session_id 兜底，否则 dynamic_v3 设备日风控可被轻易分裂。
+func DeviceIDFromContext(ctx context.Context) string {
+	claims, _ := ctx.Value(claimsContextKey).(Claims)
+	return strings.TrimSpace(claims.DeviceID)
+}
+
 // ProfileCompletedFromContext 返回 gateway profile gate 的判断依据。
 func ProfileCompletedFromContext(ctx context.Context) bool {
 	claims, _ := ctx.Value(claimsContextKey).(Claims)
--- a/services/gateway-service/internal/auth/jwt_test.go
+++ b/services/gateway-service/internal/auth/jwt_test.go
@ -1,6 +1,7 @@
 package auth

 import (
+	"context"
 	"strconv"
 	"testing"

@ -12,8 +13,9 @@ func TestVerifierParsesLargeUserIDStringWithoutPrecisionLoss(t *testing.T) {

 	const userID int64 = 399999999999990001
 	token := jwt.NewWithClaims(jwt.SigningMethodHS256, jwt.MapClaims{
-		"user_id":  strconv.FormatInt(userID, 10),
-		"app_code": "lalu",
+		"user_id":   strconv.FormatInt(userID, 10),
+		"app_code":  "lalu",
+		"device_id": " device-auth-1 ",
 	})
 	signed, err := token.SignedString([]byte("secret"))
 	if err != nil {
@ -27,4 +29,30 @@ func TestVerifierParsesLargeUserIDStringWithoutPrecisionLoss(t *testing.T) {
 	if claims.UserID != userID {
 		t.Fatalf("user_id lost precision: got %d want %d", claims.UserID, userID)
 	}
+	if claims.DeviceID != "device-auth-1" {
+		t.Fatalf("device_id was not normalized from signed claim: got %q", claims.DeviceID)
+	}
+}
+
+func TestVerifierKeepsLegacyTokenWithoutDeviceIDCompatible(t *testing.T) {
+	t.Parallel()
+
+	// 存量 access token 在滚动升级期不携带 device_id；gateway 仍应允许其进入 fixed_v2，
+	// 但绝不得把 sid 自动填为设备，dynamic_v3 会在 owner 处对空设备 fail-close。
+	token := jwt.NewWithClaims(jwt.SigningMethodHS256, jwt.MapClaims{
+		"user_id": strconv.FormatInt(42, 10),
+		"sid":     "sess-must-not-be-device",
+	})
+	signed, err := token.SignedString([]byte("secret"))
+	if err != nil {
+		t.Fatalf("sign legacy token failed: %v", err)
+	}
+	claims, err := NewVerifier("secret").Verify("Bearer " + signed)
+	if err != nil {
+		t.Fatalf("Verify legacy token failed: %v", err)
+	}
+	ctx := WithClaims(context.Background(), claims)
+	if got := DeviceIDFromContext(ctx); got != "" {
+		t.Fatalf("legacy token device_id=%q, want empty instead of sid fallback", got)
+	}
 }
--- a/services/gateway-service/internal/transport/http/httpkit/response.go
+++ b/services/gateway-service/internal/transport/http/httpkit/response.go
@ -241,7 +241,9 @@ func RoomMeta(request *http.Request, roomID string, commandID string) *roomv1.Re
 		AppCode:       appcode.FromContext(request.Context()),
 		GatewayNodeId: "gateway-local",
 		SessionId:     sessionID,
-		SentAtMs:      time.Now().UnixMilli(),
+		// 设备作用域只从已验签 JWT 读取；旧 JWT 返回空值，不用临时 session_id 兜底。
+		DeviceId: auth.DeviceIDFromContext(request.Context()),
+		SentAtMs: time.Now().UnixMilli(),
 	}
 }

--- a/services/gateway-service/internal/transport/http/httpkit/response_device_test.go
+++ b/services/gateway-service/internal/transport/http/httpkit/response_device_test.go
@ -0,0 +1,29 @@
+package httpkit
+
+import (
+	"net/http/httptest"
+	"testing"
+
+	"hyapp/services/gateway-service/internal/auth"
+)
+
+func TestRoomMetaUsesOnlySignedJWTDeviceClaim(t *testing.T) {
+	request := httptest.NewRequest("POST", "/api/v1/rooms/gift/send", nil)
+	request = request.WithContext(auth.WithClaims(request.Context(), auth.Claims{
+		AppCode: "lalu", UserID: 42, SessionID: "sess-not-a-device", DeviceID: "device-auth-session-42",
+	}))
+	meta := RoomMeta(request, "room-1", "cmd-1")
+	if meta.GetDeviceId() != "device-auth-session-42" || meta.GetSessionId() != "sess-not-a-device" {
+		t.Fatalf("room meta auth snapshots mismatch: %+v", meta)
+	}
+
+	legacy := httptest.NewRequest("POST", "/api/v1/rooms/gift/send", nil)
+	legacy = legacy.WithContext(auth.WithClaims(legacy.Context(), auth.Claims{
+		AppCode: "lalu", UserID: 42, SessionID: "sess-legacy-must-not-be-device",
+	}))
+	legacyMeta := RoomMeta(legacy, "room-1", "cmd-legacy")
+	if legacyMeta.GetDeviceId() != "" {
+		// 存量 JWT 缺 device_id 时保留空值，fixed_v2 兼容，dynamic_v3 交给 owner fail-close。
+		t.Fatalf("legacy room meta derived fake device_id=%q", legacyMeta.GetDeviceId())
+	}
+}
--- a/services/lucky-gift-service/cmd/strategy-sim/main.go
+++ b/services/lucky-gift-service/cmd/strategy-sim/main.go
@ -0,0 +1,143 @@
+// Command strategy-sim runs the product matrix against the exact pure kernel used by
+// production. It performs no database or network I/O; fixed seeds make every report
+// reproducible in CI, during review, and after a rule-version change.
+package main
+
+import (
+	"encoding/json"
+	"flag"
+	"fmt"
+	"os"
+
+	domain "hyapp/services/lucky-gift-service/internal/domain/luckygift"
+)
+
+const defaultSimulationSeed int64 = 20_260_712
+
+type simulationOptions struct {
+	Seed          int64
+	MonteCarloN   int
+	LongRunN      int
+	GroupLongRunN int
+}
+
+type simulationReport struct {
+	Seed              int64            `json:"seed"`
+	MonteCarloDraws   int              `json:"monte_carlo_draws"`
+	LongRunDraws      int              `json:"long_run_draws"`
+	GroupLongRunDraws int              `json:"group_long_run_draws"`
+	Nominal           nominalEVReport  `json:"nominal_probability_table"`
+	Scenarios         []scenarioResult `json:"scenarios"`
+	AllPassed         bool             `json:"all_passed"`
+}
+
+type nominalEVReport struct {
+	ExpectedMultiplier float64 `json:"expected_multiplier"`
+	NominalRTPPercent  float64 `json:"nominal_rtp_percent"`
+	TargetRTPPercent   float64 `json:"target_rtp_percent"`
+	PassesTarget       bool    `json:"passes_target"`
+	Conclusion         string  `json:"conclusion"`
+}
+
+type scenarioResult struct {
+	Name    string `json:"name"`
+	Passed  bool   `json:"passed"`
+	Summary string `json:"summary"`
+	Data    any    `json:"data,omitempty"`
+}
+
+func main() {
+	options := simulationOptions{}
+	jsonOut := ""
+	flag.Int64Var(&options.Seed, "seed", defaultSimulationSeed, "deterministic simulation seed")
+	flag.IntVar(&options.MonteCarloN, "monte-carlo-draws", 100_000, "draws for probability Monte Carlo")
+	flag.IntVar(&options.LongRunN, "long-run-draws", 100_000, "draws for funded RTP long run")
+	flag.IntVar(&options.GroupLongRunN, "group-long-run-draws", 30_000, "draws per recharge-stage group")
+	flag.StringVar(&jsonOut, "json-out", "", "optional path for the same JSON report printed to stdout")
+	flag.Parse()
+	if options.MonteCarloN <= 0 || options.LongRunN <= 0 || options.GroupLongRunN <= 0 {
+		fmt.Fprintln(os.Stderr, "all draw counts must be positive")
+		os.Exit(2)
+	}
+
+	report := runSimulation(options)
+	encoded, err := json.MarshalIndent(report, "", "  ")
+	if err != nil {
+		fmt.Fprintf(os.Stderr, "encode report: %v\n", err)
+		os.Exit(1)
+	}
+	printHumanSummary(report)
+	fmt.Println("\n--- JSON REPORT ---")
+	fmt.Println(string(encoded))
+	if jsonOut != "" {
+		if err := os.WriteFile(jsonOut, append(encoded, '\n'), 0o644); err != nil {
+			fmt.Fprintf(os.Stderr, "write JSON report: %v\n", err)
+			os.Exit(1)
+		}
+	}
+	if !report.AllPassed {
+		os.Exit(1)
+	}
+}
+
+func runSimulation(options simulationOptions) simulationReport {
+	// The runtime default remains a safe 98% table. Only this simulator opts into
+	// the supplied image's 2650% table so the report can expose why it is unsafe.
+	config := imageExampleConfig(domain.DefaultLuckyGiftStrategyConfig())
+	nominal := calculateNominalEV(config)
+	scenarios := []scenarioResult{
+		simulateImage800Redraw(config),
+		simulatePWBoundaries(config),
+		simulateFundSplitAndColdStart(config),
+		simulateBatchCounts(config, options.Seed),
+		simulateSettlementWagerWindow(),
+		simulateWaterBoundaries(config),
+		simulateRechargeWindowBoundaries(config),
+		simulateProbabilityMonteCarlo(config, options.Seed+10, options.MonteCarloN),
+		simulateFundedRTPLongRun(config, options.Seed+20, options.LongRunN),
+		simulateMechanismOneTruthTable(config, options.Seed+30),
+		simulateMechanismTwo(config, options.Seed+40),
+		simulateJackpotSet(config, options.Seed+50),
+		simulateDailyJackpotLimit(config, options.Seed+60),
+		simulateSixRiskCapacities(config),
+		simulateRechargeStages(config),
+		simulateCombinationPriority(config, options.Seed+70),
+		simulateConcurrencyAndIdempotency(config, options.Seed+80),
+		simulateLongRunGroups(config, options.Seed+90, options.GroupLongRunN),
+	}
+	allPassed := !nominal.PassesTarget // 2650% must be explicitly rejected, not relabelled as a 98% pass.
+	for _, scenario := range scenarios {
+		allPassed = allPassed && scenario.Passed
+	}
+	return simulationReport{
+		Seed: options.Seed, MonteCarloDraws: options.MonteCarloN, LongRunDraws: options.LongRunN,
+		GroupLongRunDraws: options.GroupLongRunN, Nominal: nominal, Scenarios: scenarios, AllPassed: allPassed,
+	}
+}
+
+func calculateNominalEV(config domain.StrategyConfig) nominalEVReport {
+	var expected float64
+	for _, tier := range config.Tiers {
+		if tier.Enabled {
+			expected += float64(tier.BaseWeightPPM) / float64(domain.StrategyPPMScale) * float64(tier.MultiplierPPM) / float64(domain.StrategyPPMScale)
+		}
+	}
+	return nominalEVReport{
+		ExpectedMultiplier: expected, NominalRTPPercent: expected * 100, TargetRTPPercent: 98,
+		PassesTarget: expected <= 0.98,
+		Conclusion:   "图示固定概率表的名义EV为26.5x（2650%），不能作为98% RTP方案；只有P/W资金约束后的有资金长跑口径可验证不透支。",
+	}
+}
+
+func printHumanSummary(report simulationReport) {
+	fmt.Printf("幸运礼物策略模拟 seed=%d\n", report.Seed)
+	fmt.Printf("名义概率表: EV=%.2fx, RTP=%.2f%%, 98%%校验=%v（预期必须为false）\n", report.Nominal.ExpectedMultiplier, report.Nominal.NominalRTPPercent, report.Nominal.PassesTarget)
+	for _, scenario := range report.Scenarios {
+		status := "PASS"
+		if !scenario.Passed {
+			status = "FAIL"
+		}
+		fmt.Printf("[%s] %s: %s\n", status, scenario.Name, scenario.Summary)
+	}
+	fmt.Printf("总结果: all_passed=%v\n", report.AllPassed)
+}
--- a/services/lucky-gift-service/cmd/strategy-sim/scenarios.go
+++ b/services/lucky-gift-service/cmd/strategy-sim/scenarios.go
@ -0,0 +1,763 @@
+package main
+
+import (
+	"fmt"
+	"math"
+	"sort"
+	"sync"
+
+	domain "hyapp/services/lucky-gift-service/internal/domain/luckygift"
+)
+
+type scriptedRandom struct {
+	indexes  []int64
+	bounds   []int64
+	position int
+}
+
+// imageExampleConfig is deliberately local to strategy-sim. Its ordinary weights
+// have 26.5x EV and therefore must never be exposed as the domain's runtime default.
+func imageExampleConfig(config domain.StrategyConfig) domain.StrategyConfig {
+	config.Tiers = []domain.StrategyTier{
+		{ID: "0x", MultiplierPPM: 0, BaseWeightPPM: 600_000, Enabled: true},
+		{ID: "5x", MultiplierPPM: 5_000_000, BaseWeightPPM: 200_000, Enabled: true},
+		{ID: "50x", MultiplierPPM: 50_000_000, BaseWeightPPM: 150_000, Enabled: true},
+		{ID: "200x", MultiplierPPM: 200_000_000, BaseWeightPPM: 40_000, Jackpot: true, JackpotWeight: 4, Enabled: true},
+		{ID: "500x", MultiplierPPM: 500_000_000, BaseWeightPPM: 0, Jackpot: true, JackpotWeight: 2, Enabled: true},
+		{ID: "1000x", MultiplierPPM: 1_000_000_000, BaseWeightPPM: 10_000, Jackpot: true, JackpotWeight: 1, Enabled: true},
+	}
+	return config
+}
+
+func (r *scriptedRandom) Int63n(n int64) (int64, error) {
+	if r.position >= len(r.indexes) {
+		return 0, fmt.Errorf("scripted random exhausted at bound %d", n)
+	}
+	if len(r.bounds) > r.position && r.bounds[r.position] != n {
+		return 0, fmt.Errorf("scripted random call %d bound=%d want=%d", r.position, n, r.bounds[r.position])
+	}
+	value := r.indexes[r.position]
+	r.position++
+	return value, nil
+}
+
+// baseProbabilityConfig isolates the image's ordinary probability table. Each
+// dynamic/special rule has a separate scenario, so scripted intervals remain exact.
+func baseProbabilityConfig(config domain.StrategyConfig) domain.StrategyConfig {
+	config.LowWaterThresholdCoins = 0
+	config.HighWaterThresholdCoins = math.MaxInt64
+	config.LowWaterFactorPPM = domain.StrategyPPMScale
+	config.HighWaterFactorPPM = domain.StrategyPPMScale
+	config.RechargeFactorPPM = domain.StrategyPPMScale
+	config.JackpotMechanism1Enabled = false
+	config.JackpotMechanism2Enabled = false
+	config.DailyJackpotLimit = math.MaxInt64
+	config.MilestoneSpendCoins = 0
+	return config
+}
+
+func failedScenario(name string, err error) scenarioResult {
+	return scenarioResult{Name: name, Passed: false, Summary: err.Error()}
+}
+
+func simulateImage800Redraw(config domain.StrategyConfig) scenarioResult {
+	const name = "图示800重抽序列"
+	config = baseProbabilityConfig(config)
+	random := &scriptedRandom{indexes: []int64{950_000, 359_999, 0}, bounds: []int64{1_000_000, 360_000, 350_000}}
+	decision, err := domain.DecideLuckyGiftStrategy(config, domain.StrategyState{PoolBalanceCoins: 800}, domain.StrategyInput{GiftPriceCoins: 10}, random)
+	if err != nil {
+		return failedScenario(name, err)
+	}
+	sequence := make([]string, 0, len(decision.Trace.Draws))
+	for _, draw := range decision.Trace.Draws {
+		sequence = append(sequence, draw.TierID)
+	}
+	passed := decision.PayoutCoins == 50 && decision.PoolAfterCoins == 750 && fmt.Sprint(sequence) == "[200x 1000x 5x]"
+	return scenarioResult{
+		Name: name, Passed: passed,
+		Summary: fmt.Sprintf("P=800，固定脚本命中%s，最终赔付=%d，池后=%d", sequence, decision.PayoutCoins, decision.PoolAfterCoins),
+		Data:    map[string]any{"sequence": sequence, "trace": decision.Trace},
+	}
+}
+
+func simulatePWBoundaries(config domain.StrategyConfig) scenarioResult {
+	const name = "P=W边界/候选穷尽"
+	config = baseProbabilityConfig(config)
+	equal, err := domain.DecideLuckyGiftStrategy(config, domain.StrategyState{PoolBalanceCoins: 2_000}, domain.StrategyInput{GiftPriceCoins: 10}, &scriptedRandom{indexes: []int64{950_000}, bounds: []int64{1_000_000}})
+	if err != nil {
+		return failedScenario(name, err)
+	}
+	exhausted, err := domain.DecideLuckyGiftStrategy(config, domain.StrategyState{PoolBalanceCoins: 49}, domain.StrategyInput{GiftPriceCoins: 10}, &scriptedRandom{indexes: []int64{999_999, 350_000, 349_999, 0}, bounds: []int64{1_000_000, 390_000, 350_000, 200_000}})
+	if err != nil {
+		return failedScenario(name, err)
+	}
+	passed := equal.PayoutCoins == 2_000 && equal.PoolAfterCoins == 0 && exhausted.PayoutCoins == 0 && exhausted.Trace.FinalReason == domain.StrategyReasonNoPayableTier && exhausted.PoolAfterCoins == 49
+	return scenarioResult{
+		Name: name, Passed: passed,
+		Summary: fmt.Sprintf("W=P赔付%d且池归零；P=49时正奖候选穷尽安全回0，池仍%d", equal.PayoutCoins, exhausted.PoolAfterCoins),
+		Data:    map[string]any{"equality": equal.Trace, "exhaustion": exhausted.Trace},
+	}
+}
+
+func simulateFundSplitAndColdStart(config domain.StrategyConfig) scenarioResult {
+	const name = "拆账与冷启动"
+	split, err := domain.SplitLuckyGiftStrategyFunds(100, config)
+	if err != nil {
+		return failedScenario(name, err)
+	}
+	initial := domain.InitialLuckyGiftStrategyState(config)
+	small, err := domain.SplitLuckyGiftStrategyFunds(10, config)
+	if err != nil {
+		return failedScenario(name, err)
+	}
+	conserved := split.PublicPoolCoins+split.ProfitPoolCoins+split.AnchorReturnCoins == 100
+	passed := split.PublicPoolCoins == 98 && split.ProfitPoolCoins == 1 && split.AnchorReturnCoins == 1 && small.PublicPoolCoins == 9 && small.ProfitPoolCoins == 1 && small.AnchorReturnCoins == 0 && conserved && initial.PoolBalanceCoins == 1_000_000
+	return scenarioResult{
+		Name: name, Passed: passed,
+		Summary: fmt.Sprintf("100金币拆为%d/%d/%d；10金币按公共池floor、余数归盈利拆为%d/%d/%d；冷启动=%d", split.PublicPoolCoins, split.ProfitPoolCoins, split.AnchorReturnCoins, small.PublicPoolCoins, small.ProfitPoolCoins, small.AnchorReturnCoins, initial.PoolBalanceCoins),
+		Data: map[string]any{
+			"split_100": split, "split_10_rounding": small,
+			"rounding_policy": "public=floor, anchor=floor, residue=profit",
+			"conserved":       conserved, "cold_start_state": initial,
+		},
+	}
+}
+
+type batchSummary struct {
+	Requested   int            `json:"requested"`
+	Executed    int            `json:"executed"`
+	Positive    int            `json:"positive"`
+	PayoutCoins int64          `json:"payout_coins"`
+	PoolAfter   int64          `json:"pool_after"`
+	TierCounts  map[string]int `json:"tier_counts"`
+}
+
+func simulateBatchCounts(config domain.StrategyConfig, seed int64) scenarioResult {
+	const name = "1/5/6/99批量"
+	config.JackpotMechanism1Enabled = false
+	config.JackpotMechanism2Enabled = false
+	config.MilestoneSpendCoins = 0
+	config.DailyJackpotLimit = math.MaxInt64
+	counts := []int{1, 5, 6, 99}
+	results := make([]batchSummary, 0, len(counts))
+	passed := true
+	for _, count := range counts {
+		state := domain.StrategyState{}
+		random := domain.NewSeededStrategyRandom(seed + int64(count))
+		summary := batchSummary{Requested: count, TierCounts: map[string]int{}}
+		for index := 0; index < count; index++ {
+			decision, err := domain.DecideLuckyGiftStrategy(config, state, domain.StrategyInput{GiftPriceCoins: 100, PoolContributionCoins: 98}, random)
+			if err != nil {
+				return failedScenario(name, err)
+			}
+			state = decision.NextState
+			summary.Executed++
+			summary.TierCounts[decision.SelectedTier.ID]++
+			summary.PayoutCoins += decision.PayoutCoins
+			if decision.PayoutCoins > 0 {
+				summary.Positive++
+			}
+			passed = passed && decision.PoolAfterCoins >= 0
+		}
+		summary.PoolAfter = state.PoolBalanceCoins
+		passed = passed && summary.Executed == count
+		results = append(results, summary)
+	}
+	return scenarioResult{Name: name, Passed: passed, Summary: "每份礼物独立推进一次状态，1/5/6/99均完整执行且任一中间池余额不负", Data: results}
+}
+
+func simulateSettlementWagerWindow() scenarioResult {
+	const name = "真实流水结算窗口"
+	const (
+		settlementWager = int64(99)
+		referencePrice  = int64(10)
+		totalSpend      = int64(100)
+		drawCount       = int64(99)
+	)
+	type window struct {
+		Index int64 `json:"index"`
+		Paid  int64 `json:"paid_draws"`
+		Wager int64 `json:"wager_coins"`
+	}
+	// 10 抽但只有 98 流水是专门构造的反例：ceil(99/10)=10 的旧抽数算法会提前关窗，真实流水算法仍允许下一抽进入窗口 1。
+	windows := []window{{Index: 1, Paid: 10, Wager: 98}}
+	drawWindows := make([]int64, 0, drawCount)
+	for index := int64(1); index <= drawCount; index++ {
+		current := &windows[len(windows)-1]
+		if current.Wager >= settlementWager {
+			windows = append(windows, window{Index: current.Index + 1})
+			current = &windows[len(windows)-1]
+		}
+		unitSpend := totalSpend / drawCount
+		if index <= totalSpend%drawCount {
+			unitSpend++
+		}
+		current.Paid++
+		current.Wager += unitSpend
+		drawWindows = append(drawWindows, current.Index)
+	}
+	firstCount, secondCount := 0, 0
+	for _, index := range drawWindows {
+		if index == 1 {
+			firstCount++
+		} else if index == 2 {
+			secondCount++
+		}
+	}
+	passed := len(windows) == 2 && windows[0].Paid == 11 && windows[0].Wager == 100 && windows[1].Paid == 98 && windows[1].Wager == 98 && firstCount == 1 && secondCount == 98
+	return scenarioResult{
+		Name: name, Passed: passed,
+		Summary: fmt.Sprintf("阈值99、参考价10、预置10抽/98流水；99份共100金币后窗口流水=%d/%d，子抽归属=%d/%d", windows[0].Wager, windows[1].Wager, firstCount, secondCount),
+		Data: map[string]any{
+			"settlement_window_wager": settlementWager,
+			"reference_price":         referencePrice, "legacy_derived_draw_threshold": int64(math.Ceil(float64(settlementWager) / float64(referencePrice))),
+			"windows": windows, "draws_in_window_1": firstCount, "draws_in_window_2": secondCount,
+		},
+	}
+}
+
+func simulateWaterBoundaries(config domain.StrategyConfig) scenarioResult {
+	const name = "低中高水位边界"
+	config.JackpotMechanism1Enabled = false
+	config.JackpotMechanism2Enabled = false
+	type waterPoint struct {
+		Pool       int64    `json:"pool"`
+		FiveWeight int64    `json:"five_x_weight_ppm"`
+		Factors    []string `json:"factors"`
+	}
+	points := make([]waterPoint, 0, 4)
+	for _, pool := range []int64{9_999_999, 10_000_000, 20_000_000, 20_000_001} {
+		_, traces, err := domain.PreviewLuckyGiftStrategyWeights(config, domain.StrategyState{PoolBalanceCoins: pool}, domain.StrategyInput{GiftPriceCoins: 100})
+		if err != nil {
+			return failedScenario(name, err)
+		}
+		trace := strategyWeightTrace(traces, "5x")
+		factors := make([]string, 0, len(trace.Factors))
+		for _, factor := range trace.Factors {
+			factors = append(factors, factor.Name)
+		}
+		points = append(points, waterPoint{Pool: pool, FiveWeight: trace.AdjustedWeightPPM, Factors: factors})
+	}
+	passed := points[0].FiveWeight == 140_000 && points[1].FiveWeight == 200_000 && points[2].FiveWeight == 200_000 && points[3].FiveWeight == 260_000
+	return scenarioResult{Name: name, Passed: passed, Summary: "<1000万应用0.7；等于1000万/2000万均为中水位；>2000万应用1.3", Data: points}
+}
+
+func simulateRechargeWindowBoundaries(config domain.StrategyConfig) scenarioResult {
+	const name = "充值0/299999/300000ms"
+	config.JackpotMechanism1Enabled = false
+	config.JackpotMechanism2Enabled = false
+	const now = int64(1_000_000)
+	type rechargePoint struct {
+		AgeMS      int64 `json:"age_ms"`
+		FiveWeight int64 `json:"five_x_weight_ppm"`
+		Boosted    bool  `json:"boosted"`
+	}
+	points := make([]rechargePoint, 0, 3)
+	for _, age := range []int64{0, 299_999, 300_000} {
+		input := domain.StrategyInput{GiftPriceCoins: 100, NowMS: now, HasRechargeFact: true, LastRechargeAtMS: now - age}
+		_, traces, err := domain.PreviewLuckyGiftStrategyWeights(config, domain.StrategyState{PoolBalanceCoins: 15_000_000}, input)
+		if err != nil {
+			return failedScenario(name, err)
+		}
+		trace := strategyWeightTrace(traces, "5x")
+		boosted := false
+		for _, factor := range trace.Factors {
+			boosted = boosted || factor.Name == "recent_recharge"
+		}
+		points = append(points, rechargePoint{AgeMS: age, FiveWeight: trace.AdjustedWeightPPM, Boosted: boosted})
+	}
+	passed := points[0].Boosted && points[1].Boosted && !points[2].Boosted && points[0].FiveWeight == 220_000 && points[2].FiveWeight == 200_000
+	return scenarioResult{Name: name, Passed: passed, Summary: "充值加成严格使用[0,300000ms)：0和299999生效，300000失效", Data: points}
+}
+
+func simulateProbabilityMonteCarlo(config domain.StrategyConfig, seed int64, draws int) scenarioResult {
+	const name = "概率Monte Carlo"
+	config = baseProbabilityConfig(config)
+	config.MissProtectionZeroDraws = math.MaxInt64
+	state := domain.StrategyState{PoolBalanceCoins: 1_000_000_000_000_000}
+	random := domain.NewSeededStrategyRandom(seed)
+	counts := map[string]int{}
+	var multiplierSum float64
+	for index := 0; index < draws; index++ {
+		decision, err := domain.DecideLuckyGiftStrategy(config, state, domain.StrategyInput{GiftPriceCoins: 10}, random)
+		if err != nil {
+			return failedScenario(name, err)
+		}
+		state = decision.NextState
+		counts[decision.SelectedTier.ID]++
+		multiplierSum += float64(decision.SelectedTier.MultiplierPPM) / float64(domain.StrategyPPMScale)
+	}
+	expected := map[string]float64{"0x": 0.60, "5x": 0.20, "50x": 0.15, "200x": 0.04, "500x": 0, "1000x": 0.01}
+	empirical := map[string]float64{}
+	passed := true
+	for tier, probability := range expected {
+		empirical[tier] = float64(counts[tier]) / float64(draws)
+		// Five standard deviations makes the assertion scale with -draws instead
+		// of baking a tolerance that is too strict for a quick local smoke run.
+		tolerance := 5*math.Sqrt(probability*(1-probability)/float64(draws)) + 1/float64(draws)
+		passed = passed && math.Abs(empirical[tier]-probability) <= tolerance
+	}
+	empiricalEV := multiplierSum / float64(draws)
+	const multiplierVariance = 11_277.75 // E[X^2]=11980, E[X]^2=702.25.
+	evTolerance := 5 * math.Sqrt(multiplierVariance/float64(draws))
+	passed = passed && math.Abs(empiricalEV-26.5) <= evTolerance
+	return scenarioResult{
+		Name: name, Passed: passed,
+		Summary: fmt.Sprintf("%d抽经验EV=%.4fx（只验证图示概率采样，不声称通过98%%资金RTP）", draws, empiricalEV),
+		Data:    map[string]any{"counts": counts, "expected_probability": expected, "empirical_probability": empirical, "empirical_ev_multiplier": empiricalEV},
+	}
+}
+
+func simulateFundedRTPLongRun(config domain.StrategyConfig, seed int64, draws int) scenarioResult {
+	const name = "RTP长跑"
+	config.JackpotMechanism1Enabled = false
+	config.JackpotMechanism2Enabled = false
+	config.DailyJackpotLimit = math.MaxInt64
+	config.MilestoneSpendCoins = 0
+	state := domain.StrategyState{}
+	random := domain.NewSeededStrategyRandom(seed)
+	var contributed, payout int64
+	for index := 0; index < draws; index++ {
+		decision, err := domain.DecideLuckyGiftStrategy(config, state, domain.StrategyInput{GiftPriceCoins: 100, PoolContributionCoins: 98}, random)
+		if err != nil {
+			return failedScenario(name, err)
+		}
+		state = decision.NextState
+		contributed += 98
+		payout += decision.PayoutCoins
+		if state.PoolBalanceCoins < 0 {
+			return scenarioResult{Name: name, Passed: false, Summary: fmt.Sprintf("第%d抽资金为负", index+1)}
+		}
+	}
+	rtpPercent := float64(payout) / float64(draws*100) * 100
+	conserved := contributed-payout == state.PoolBalanceCoins
+	passed := conserved && payout <= contributed && rtpPercent <= 98
+	return scenarioResult{
+		Name: name, Passed: passed,
+		Summary: fmt.Sprintf("%d抽实付RTP=%.4f%%，投入=%d，赔付=%d，池余=%d", draws, rtpPercent, contributed, payout, state.PoolBalanceCoins),
+		Data:    map[string]any{"contributed": contributed, "payout": payout, "pool_after": state.PoolBalanceCoins, "rtp_percent": rtpPercent, "fund_conserved": conserved},
+	}
+}
+
+func strategyWeightTrace(traces []domain.StrategyWeightTrace, tierID string) domain.StrategyWeightTrace {
+	for _, trace := range traces {
+		if trace.TierID == tierID {
+			return trace
+		}
+	}
+	return domain.StrategyWeightTrace{}
+}
+
+type mechanismOneRow struct {
+	GlobalPass     bool   `json:"global_pass"`
+	UserDayPass    bool   `json:"user_day_pass"`
+	User72HourPass bool   `json:"user_72h_pass"`
+	Triggered      bool   `json:"triggered"`
+	SelectedTier   string `json:"selected_tier"`
+}
+
+func simulateMechanismOneTruthTable(config domain.StrategyConfig, seed int64) scenarioResult {
+	const name = "大奖机制1真值表"
+	config = baseProbabilityConfig(config)
+	config.JackpotMechanism1Enabled = true
+	config.DailyJackpotLimit = 5
+	rows := make([]mechanismOneRow, 0, 8)
+	passed := true
+	rowIndex := int64(0)
+	for mask := 0; mask < 8; mask++ {
+		globalPass := mask&1 != 0
+		dayPass := mask&2 != 0
+		hour72Pass := mask&4 != 0
+		state := domain.StrategyState{
+			PoolBalanceCoins: 20_000,
+			GlobalRTP:        rtpForTruth(globalPass, 98),
+			UserDayRTP:       rtpForTruth(dayPass, 96),
+			User72HourRTP:    rtpForTruth(hour72Pass, 96),
+		}
+		decision, err := domain.DecideLuckyGiftStrategy(config, state, domain.StrategyInput{GiftPriceCoins: 10}, domain.NewSeededStrategyRandom(seed+rowIndex))
+		if err != nil {
+			return failedScenario(name, err)
+		}
+		triggered := decision.JackpotMechanism == domain.StrategyJackpotMechanismRTPCompensation
+		want := globalPass && dayPass && hour72Pass
+		passed = passed && triggered == want
+		rows = append(rows, mechanismOneRow{GlobalPass: globalPass, UserDayPass: dayPass, User72HourPass: hour72Pass, Triggered: triggered, SelectedTier: decision.SelectedTier.ID})
+		rowIndex++
+	}
+	// The denominator-zero row is separate from boolean “ratio above threshold” so
+	// the report proves an empty window never qualifies as an apparent 0% RTP.
+	zeroState := domain.StrategyState{
+		PoolBalanceCoins: 20_000, GlobalRTP: domain.StrategyRTP{},
+		UserDayRTP:    domain.StrategyRTP{WagerCoins: 100, PayoutCoins: 96},
+		User72HourRTP: domain.StrategyRTP{WagerCoins: 100, PayoutCoins: 96},
+	}
+	zeroDecision, err := domain.DecideLuckyGiftStrategy(config, zeroState, domain.StrategyInput{GiftPriceCoins: 10}, domain.NewSeededStrategyRandom(seed+99))
+	if err != nil {
+		return failedScenario(name, err)
+	}
+	zeroBlocked := zeroDecision.JackpotMechanism != domain.StrategyJackpotMechanismRTPCompensation
+	passed = passed && zeroBlocked
+	return scenarioResult{
+		Name: name, Passed: passed,
+		Summary: "global<=98%、用户日<=96%、用户72h<=96%三项全真才触发；任一分母为0明确阻断",
+		Data:    map[string]any{"truth_table": rows, "denominator_zero_blocked": zeroBlocked, "denominator_zero_conditions": zeroDecision.Trace.Conditions},
+	}
+}
+
+func rtpForTruth(pass bool, limitPercent int64) domain.StrategyRTP {
+	payout := limitPercent
+	if !pass {
+		payout++
+	}
+	return domain.StrategyRTP{WagerCoins: 100, PayoutCoins: payout}
+}
+
+func simulateMechanismTwo(config domain.StrategyConfig, seed int64) scenarioResult {
+	const name = "机制2里程碑/池不足"
+	config = baseProbabilityConfig(config)
+	config.JackpotMechanism2Enabled = true
+	// Simulator makes the product's USD 50 threshold explicit in its own demo unit;
+	// production must inject the region/version-specific USD-to-coin conversion.
+	config.MilestoneSpendCoins = 50
+	config.DailyJackpotLimit = 5
+	input := domain.StrategyInput{GiftPriceCoins: 10}
+	blocked, err := domain.DecideLuckyGiftStrategy(config, domain.StrategyState{PoolBalanceCoins: 49, PendingMilestoneTokens: 1}, input, domain.NewSeededStrategyRandom(seed))
+	if err != nil {
+		return failedScenario(name, err)
+	}
+	payableState := blocked.NextState
+	payableState.PoolBalanceCoins = 20_000
+	paid, err := domain.DecideLuckyGiftStrategy(config, payableState, input, domain.NewSeededStrategyRandom(seed+1))
+	if err != nil {
+		return failedScenario(name, err)
+	}
+	crossed, err := domain.DecideLuckyGiftStrategy(config, domain.StrategyState{PoolBalanceCoins: 1_000, UserDaySpendCoins: 40}, input, domain.NewSeededStrategyRandom(seed+2))
+	if err != nil {
+		return failedScenario(name, err)
+	}
+	passed := blocked.NextState.PendingMilestoneTokens == 1 && blocked.Trace.MilestoneTokenRetained && paid.ConsumedMilestoneToken && paid.NextState.PendingMilestoneTokens == 0 && crossed.NextState.PendingMilestoneTokens == 1 && !crossed.ConsumedMilestoneToken
+	return scenarioResult{
+		Name: name, Passed: passed,
+		Summary: fmt.Sprintf("49池余额时资格保留=%v；补池后命中%s并消费；40→50本抽新增token=%d供下一抽", blocked.Trace.MilestoneTokenRetained, paid.SelectedTier.ID, crossed.Trace.MilestoneTokensEarned),
+		Data:    map[string]any{"milestone_crossings_49_to_101": domain.MilestoneTokensEarned(49, 101, 50), "blocked": blocked, "paid": paid, "earned_for_next_draw": crossed},
+	}
+}
+
+func simulateJackpotSet(config domain.StrategyConfig, seed int64) scenarioResult {
+	const name = "大奖集合"
+	config = baseProbabilityConfig(config)
+	config.JackpotMechanism2Enabled = true
+	config.DailyJackpotLimit = 5
+	all := map[string]int{}
+	for index := int64(0); index < 120; index++ {
+		decision, err := domain.DecideLuckyGiftStrategy(config, domain.StrategyState{PoolBalanceCoins: 10_000, PendingMilestoneTokens: 1}, domain.StrategyInput{GiftPriceCoins: 10}, domain.NewSeededStrategyRandom(seed+index))
+		if err != nil {
+			return failedScenario(name, err)
+		}
+		all[decision.SelectedTier.ID]++
+	}
+	limited := map[string]int{}
+	for index := int64(0); index < 40; index++ {
+		decision, err := domain.DecideLuckyGiftStrategy(config, domain.StrategyState{PoolBalanceCoins: 4_999, PendingMilestoneTokens: 1}, domain.StrategyInput{GiftPriceCoins: 10}, domain.NewSeededStrategyRandom(seed+1_000+index))
+		if err != nil {
+			return failedScenario(name, err)
+		}
+		limited[decision.SelectedTier.ID]++
+	}
+	_, has200 := all["200x"]
+	_, has500 := all["500x"]
+	_, has1000 := all["1000x"]
+	passed := has200 && has500 && has1000 && len(limited) == 1 && limited["200x"] == 40
+	return scenarioResult{
+		Name: name, Passed: passed,
+		Summary: fmt.Sprintf("池足时大奖集合覆盖200/500/1000x=%v；P=4999时只可能200x=%v", has200 && has500 && has1000, limited),
+		Data:    map[string]any{"pool_10000_counts": all, "pool_4999_counts": limited},
+	}
+}
+
+func simulateDailyJackpotLimit(config domain.StrategyConfig, seed int64) scenarioResult {
+	const name = "日5次上限"
+	config = baseProbabilityConfig(config)
+	config.JackpotMechanism2Enabled = true
+	config.DailyJackpotLimit = 5
+	state := domain.StrategyState{PoolBalanceCoins: 1_000_000}
+	for index := 0; index < 5; index++ {
+		state.PendingMilestoneTokens = 1
+		decision, err := domain.DecideLuckyGiftStrategy(config, state, domain.StrategyInput{GiftPriceCoins: 10}, domain.NewSeededStrategyRandom(seed+int64(index)))
+		if err != nil {
+			return failedScenario(name, err)
+		}
+		state = decision.NextState
+		if !decision.Jackpot {
+			return scenarioResult{Name: name, Passed: false, Summary: fmt.Sprintf("第%d次未按资格出大奖", index+1)}
+		}
+	}
+	state.PendingMilestoneTokens = 1
+	// Force ordinary 200x after the special path is blocked, then force 0x on the
+	// retry. This proves the daily ceiling also constrains accidental base jackpots.
+	sixth, err := domain.DecideLuckyGiftStrategy(config, state, domain.StrategyInput{GiftPriceCoins: 10}, &scriptedRandom{indexes: []int64{950_000, 0}, bounds: []int64{1_000_000, 960_000}})
+	if err != nil {
+		return failedScenario(name, err)
+	}
+	passed := state.UserDailyJackpotWins == 5 && !sixth.Jackpot && sixth.NextState.UserDailyJackpotWins == 5 && sixth.NextState.PendingMilestoneTokens == 1
+	return scenarioResult{
+		Name: name, Passed: passed,
+		Summary: fmt.Sprintf("前5次大奖计数=%d；第6次特殊与基础大奖均被硬阻断且资格保留", state.UserDailyJackpotWins),
+		Data:    map[string]any{"sixth": sixth},
+	}
+}
+
+func simulateSixRiskCapacities(config domain.StrategyConfig) scenarioResult {
+	const name = "六维risk capacity代表边界"
+	config = baseProbabilityConfig(config)
+	config.Tiers = []domain.StrategyTier{
+		{ID: "0x", MultiplierPPM: 0, BaseWeightPPM: 0, Enabled: true},
+		{ID: "5x", MultiplierPPM: 5_000_000, BaseWeightPPM: domain.StrategyPPMScale, Enabled: true},
+	}
+	type dimension struct {
+		name string
+		set  func(*domain.StrategyRiskCapacity, int64)
+	}
+	dimensions := []dimension{
+		{name: "single_draw", set: func(c *domain.StrategyRiskCapacity, v int64) { c.SingleDrawCoins = v }},
+		{name: "user_hour", set: func(c *domain.StrategyRiskCapacity, v int64) { c.UserHourCoins = v }},
+		{name: "user_day", set: func(c *domain.StrategyRiskCapacity, v int64) { c.UserDayCoins = v }},
+		{name: "device_day", set: func(c *domain.StrategyRiskCapacity, v int64) { c.DeviceDayCoins = v }},
+		{name: "room_hour", set: func(c *domain.StrategyRiskCapacity, v int64) { c.RoomHourCoins = v }},
+		{name: "anchor_day", set: func(c *domain.StrategyRiskCapacity, v int64) { c.AnchorDayCoins = v }},
+	}
+	rows := map[string]map[string]any{}
+	passed := true
+	for _, item := range dimensions {
+		capacity := domain.StrategyRiskCapacity{Enabled: true, SingleDrawCoins: 1_000, UserHourCoins: 1_000, UserDayCoins: 1_000, DeviceDayCoins: 1_000, RoomHourCoins: 1_000, AnchorDayCoins: 1_000}
+		item.set(&capacity, 50)
+		allowed, err := domain.DecideLuckyGiftStrategy(config, domain.StrategyState{PoolBalanceCoins: 50}, domain.StrategyInput{GiftPriceCoins: 10, RiskCapacity: capacity}, domain.NewSeededStrategyRandom(1))
+		if err != nil {
+			return failedScenario(name, err)
+		}
+		item.set(&capacity, 49)
+		blocked, err := domain.DecideLuckyGiftStrategy(config, domain.StrategyState{PoolBalanceCoins: 50}, domain.StrategyInput{GiftPriceCoins: 10, RiskCapacity: capacity}, domain.NewSeededStrategyRandom(1))
+		if err != nil {
+			return failedScenario(name, err)
+		}
+		rowPass := allowed.PayoutCoins == 50 && blocked.PayoutCoins == 0 && blocked.PoolAfterCoins == 50
+		passed = passed && rowPass
+		rows[item.name] = map[string]any{"equal_capacity_payout": allowed.PayoutCoins, "below_capacity_payout": blocked.PayoutCoins, "pass": rowPass}
+	}
+	return scenarioResult{Name: name, Passed: passed, Summary: "单次/用户小时/用户日/设备日/房间小时/主播日六维均验证W=capacity可赔、W=capacity+1硬阻断", Data: rows}
+}
+
+func simulateRechargeStages(config domain.StrategyConfig) scenarioResult {
+	const name = "充值分层"
+	type row struct {
+		Recharge7D  int64  `json:"recharge_7d"`
+		Recharge30D int64  `json:"recharge_30d"`
+		Stage       string `json:"stage"`
+	}
+	inputs := [][2]int64{{0, 0}, {0, 1}, {1, 1}}
+	wants := []string{domain.StageNovice, domain.StageNormal, domain.StageAdvanced}
+	rows := make([]row, 0, len(inputs))
+	passed := true
+	for index, input := range inputs {
+		stage := domain.SelectLuckyGiftRechargeStage(config, input[0], input[1])
+		passed = passed && stage == wants[index]
+		rows = append(rows, row{Recharge7D: input[0], Recharge30D: input[1], Stage: stage})
+	}
+	return scenarioResult{Name: name, Passed: passed, Summary: "三阶段同时要求7日与30日显式下限，选择满足条件的最高阶段", Data: map[string]any{"thresholds": config.RechargeStages, "boundary_rows": rows}}
+}
+
+func simulateCombinationPriority(config domain.StrategyConfig, seed int64) scenarioResult {
+	const name = "组合优先级"
+	config = baseProbabilityConfig(config)
+	config.LowWaterThresholdCoins = 20_000
+	config.HighWaterThresholdCoins = 30_000
+	config.LowWaterFactorPPM = 700_000
+	config.HighWaterFactorPPM = 1_300_000
+	config.RechargeFactorPPM = 1_100_000
+	config.JackpotMechanism1Enabled = true
+	config.JackpotMechanism2Enabled = true
+	config.DailyJackpotLimit = 5
+	config.MilestoneSpendCoins = 50
+	state := domain.StrategyState{
+		PoolBalanceCoins: 10_000, ConsecutiveZeroDraws: 5, PendingMilestoneTokens: 1,
+		GlobalRTP:     domain.StrategyRTP{WagerCoins: 100, PayoutCoins: 98},
+		UserDayRTP:    domain.StrategyRTP{WagerCoins: 100, PayoutCoins: 96},
+		User72HourRTP: domain.StrategyRTP{WagerCoins: 100, PayoutCoins: 96},
+	}
+	input := domain.StrategyInput{
+		GiftPriceCoins: 10, NowMS: 1_000_000, HasRechargeFact: true,
+		LastRechargeAtMS: 700_001, Recharge7DCoins: 1, Recharge30DCoins: 1,
+	}
+	priority, err := domain.DecideLuckyGiftStrategy(config, state, input, domain.NewSeededStrategyRandom(seed))
+	if err != nil {
+		return failedScenario(name, err)
+	}
+	// When both jackpot mechanisms are eligible, the persisted token is contractual
+	// state and therefore wins before RTP compensation or sixth-draw protection.
+	priorityPass := priority.JackpotMechanism == domain.StrategyJackpotMechanismMilestone && priority.ConsumedMilestoneToken && priority.Stage == domain.StageAdvanced
+
+	blockedState := state
+	blockedState.PoolBalanceCoins = 50
+	blocked, err := domain.DecideLuckyGiftStrategy(config, blockedState, input, domain.NewSeededStrategyRandom(seed+1))
+	if err != nil {
+		return failedScenario(name, err)
+	}
+	// Neither special mechanism may overdraw the pool. The token survives and the
+	// ordinary sixth-draw protection may pay only the affordable 5x boundary.
+	blockedPass := blocked.Trace.MilestoneTokenRetained && blocked.NextState.PendingMilestoneTokens == 1 && blocked.PayoutCoins == 50 && blocked.PoolAfterCoins == 0
+	return scenarioResult{
+		Name: name, Passed: priorityPass && blockedPass,
+		Summary: fmt.Sprintf("优先级=持久token>%s>普通P/W/第6抽；特殊档池不足时资格保留并仅赔可支付%s", domain.StrategyJackpotMechanismRTPCompensation, blocked.SelectedTier.ID),
+		Data:    map[string]any{"all_eligible": priority, "special_pool_blocked": blocked},
+	}
+}
+
+// simulationStore models the repository contract that the pure kernel expects:
+// command idempotency and state locking wrap the draw in one critical section. The
+// simulator does not claim an in-memory mutex is the production implementation; it
+// verifies the state-machine invariants a row lock/CAS transaction must preserve.
+type simulationStore struct {
+	mu          sync.Mutex
+	config      domain.StrategyConfig
+	state       domain.StrategyState
+	random      domain.StrategyRandomSource
+	seen        map[string]domain.StrategyDecision
+	transitions int
+}
+
+func newSimulationStore(config domain.StrategyConfig, state domain.StrategyState, seed int64) *simulationStore {
+	return &simulationStore{config: config, state: state, random: domain.NewSeededStrategyRandom(seed), seen: map[string]domain.StrategyDecision{}}
+}
+
+func (s *simulationStore) execute(commandID string, input domain.StrategyInput) (domain.StrategyDecision, error) {
+	s.mu.Lock()
+	defer s.mu.Unlock()
+	if existing, ok := s.seen[commandID]; ok {
+		return existing, nil
+	}
+	decision, err := domain.DecideLuckyGiftStrategy(s.config, s.state, input, s.random)
+	if err != nil {
+		return domain.StrategyDecision{}, err
+	}
+	s.state = decision.NextState
+	s.seen[commandID] = decision
+	s.transitions++
+	return decision, nil
+}
+
+func simulateConcurrencyAndIdempotency(config domain.StrategyConfig, seed int64) scenarioResult {
+	const name = "并发/幂等模型"
+	config.JackpotMechanism1Enabled = false
+	config.JackpotMechanism2Enabled = false
+	config.DailyJackpotLimit = math.MaxInt64
+	config.MilestoneSpendCoins = 0
+	input := domain.StrategyInput{GiftPriceCoins: 100, PoolContributionCoins: 98}
+
+	duplicateStore := newSimulationStore(config, domain.StrategyState{}, seed)
+	duplicateErrors := runConcurrentCommands(duplicateStore, 32, func(int) string { return "same-command" }, input)
+	duplicatePass := len(duplicateErrors) == 0 && duplicateStore.transitions == 1 && duplicateStore.state.Version == 1 && len(duplicateStore.seen) == 1 && duplicateStore.state.PoolBalanceCoins >= 0
+
+	uniqueStore := newSimulationStore(config, domain.StrategyState{}, seed+1)
+	uniqueErrors := runConcurrentCommands(uniqueStore, 100, func(index int) string { return fmt.Sprintf("command-%03d", index) }, input)
+	uniquePass := len(uniqueErrors) == 0 && uniqueStore.transitions == 100 && uniqueStore.state.Version == 100 && len(uniqueStore.seen) == 100 && uniqueStore.state.PoolBalanceCoins >= 0
+	return scenarioResult{
+		Name: name, Passed: duplicatePass && uniquePass,
+		Summary: fmt.Sprintf("32个同幂等键仅1次状态迁移；100个并发唯一键串行化为100个版本且池余=%d", uniqueStore.state.PoolBalanceCoins),
+		Data: map[string]any{
+			"duplicate": map[string]any{"requests": 32, "transitions": duplicateStore.transitions, "version": duplicateStore.state.Version, "errors": duplicateErrors},
+			"unique":    map[string]any{"requests": 100, "transitions": uniqueStore.transitions, "version": uniqueStore.state.Version, "pool_after": uniqueStore.state.PoolBalanceCoins, "errors": uniqueErrors},
+		},
+	}
+}
+
+func runConcurrentCommands(store *simulationStore, count int, commandID func(int) string, input domain.StrategyInput) []string {
+	var wait sync.WaitGroup
+	errorsCh := make(chan string, count)
+	for index := 0; index < count; index++ {
+		wait.Add(1)
+		go func(index int) {
+			defer wait.Done()
+			if _, err := store.execute(commandID(index), input); err != nil {
+				errorsCh <- err.Error()
+			}
+		}(index)
+	}
+	wait.Wait()
+	close(errorsCh)
+	errorsFound := make([]string, 0, len(errorsCh))
+	for err := range errorsCh {
+		errorsFound = append(errorsFound, err)
+	}
+	sort.Strings(errorsFound)
+	return errorsFound
+}
+
+type groupLongRunSummary struct {
+	ExpectedStage string         `json:"expected_stage"`
+	ObservedStage string         `json:"observed_stage"`
+	Draws         int            `json:"draws"`
+	TierCounts    map[string]int `json:"tier_counts"`
+	PayoutCoins   int64          `json:"payout_coins"`
+	PoolAfter     int64          `json:"pool_after"`
+	RTPPercent    float64        `json:"rtp_percent"`
+}
+
+func simulateLongRunGroups(config domain.StrategyConfig, seed int64, draws int) scenarioResult {
+	const name = "长跑分群"
+	config.JackpotMechanism1Enabled = false
+	config.JackpotMechanism2Enabled = false
+	config.DailyJackpotLimit = math.MaxInt64
+	config.MilestoneSpendCoins = 0
+	// This grouping run uses a production-safe table (stage EV 85%/97.5%/98%),
+	// not the image's 2650% probability snapshot. That keeps distribution changes
+	// visible instead of letting P/W drain every group into the same 5x-only cycle.
+	config.LowWaterThresholdCoins = 0
+	config.HighWaterThresholdCoins = math.MaxInt64
+	config.LowWaterFactorPPM = domain.StrategyPPMScale
+	config.HighWaterFactorPPM = domain.StrategyPPMScale
+	config.RechargeFactorPPM = domain.StrategyPPMScale
+	config.MissProtectionZeroDraws = math.MaxInt64
+	config.Tiers = []domain.StrategyTier{
+		{ID: "0x", MultiplierPPM: 0, Enabled: true},
+		{ID: "0.5x", MultiplierPPM: 500_000, Enabled: true, StageWeightPPM: map[string]int64{domain.StageNovice: 100_000, domain.StageNormal: 50_000, domain.StageAdvanced: 40_000}},
+		{ID: "1x", MultiplierPPM: 1_000_000, Enabled: true, StageWeightPPM: map[string]int64{domain.StageNovice: 800_000, domain.StageNormal: 850_000, domain.StageAdvanced: 840_000}},
+		{ID: "2x", MultiplierPPM: 2_000_000, Enabled: true, StageWeightPPM: map[string]int64{domain.StageNovice: 0, domain.StageNormal: 50_000, domain.StageAdvanced: 60_000}},
+	}
+	groups := []struct {
+		stage       string
+		recharge7D  int64
+		recharge30D int64
+	}{
+		{stage: domain.StageNovice, recharge7D: 0, recharge30D: 0},
+		{stage: domain.StageNormal, recharge7D: 0, recharge30D: 1},
+		{stage: domain.StageAdvanced, recharge7D: 1, recharge30D: 1},
+	}
+	results := make([]groupLongRunSummary, 0, len(groups))
+	passed := true
+	for groupIndex, group := range groups {
+		state := domain.StrategyState{}
+		random := domain.NewSeededStrategyRandom(seed + int64(groupIndex))
+		summary := groupLongRunSummary{ExpectedStage: group.stage, Draws: draws, TierCounts: map[string]int{}}
+		for index := 0; index < draws; index++ {
+			decision, err := domain.DecideLuckyGiftStrategy(config, state, domain.StrategyInput{
+				GiftPriceCoins: 100, PoolContributionCoins: 98,
+				Recharge7DCoins: group.recharge7D, Recharge30DCoins: group.recharge30D,
+			}, random)
+			if err != nil {
+				return failedScenario(name, err)
+			}
+			state = decision.NextState
+			summary.ObservedStage = decision.Stage
+			summary.TierCounts[decision.SelectedTier.ID]++
+			summary.PayoutCoins += decision.PayoutCoins
+			if state.PoolBalanceCoins < 0 {
+				passed = false
+			}
+		}
+		summary.PoolAfter = state.PoolBalanceCoins
+		summary.RTPPercent = float64(summary.PayoutCoins) / float64(draws*100) * 100
+		passed = passed && summary.ObservedStage == group.stage && summary.RTPPercent <= 98 && int64(draws*98)-summary.PayoutCoins == summary.PoolAfter
+		results = append(results, summary)
+	}
+	return scenarioResult{Name: name, Passed: passed, Summary: fmt.Sprintf("novice/normal/advanced各%d抽，分层权重不同但三组资金RTP均<=98%%且守恒", draws), Data: results}
+}
--- a/services/lucky-gift-service/deploy/mysql/initdb/001_lucky_gift_service.sql
+++ b/services/lucky-gift-service/deploy/mysql/initdb/001_lucky_gift_service.sql
@ -78,8 +78,11 @@ CREATE TABLE IF NOT EXISTS lucky_gift_rule_versions (
  pool_id VARCHAR(96) NOT NULL COMMENT '幸运礼物奖池 ID',
  rule_version BIGINT NOT NULL COMMENT '不可变规则版本',
  enabled TINYINT(1) NOT NULL DEFAULT 0 COMMENT '是否启用',
+  strategy_version VARCHAR(32) NOT NULL DEFAULT 'fixed_v2' COMMENT 'fixed_v2/dynamic_v3；旧版本固定按 fixed_v2 解释',
  target_rtp_ppm BIGINT NOT NULL COMMENT '基础返奖目标，ppm',
  pool_rate_ppm BIGINT NOT NULL COMMENT '每笔扣费进入基础奖池比例，ppm',
+  profit_rate_ppm BIGINT NOT NULL DEFAULT 0 COMMENT '每笔扣费计入平台盈利比例，ppm',
+  anchor_rate_ppm BIGINT NOT NULL DEFAULT 0 COMMENT '每笔扣费计入主播收益比例，ppm',
  settlement_window_wager BIGINT NOT NULL COMMENT 'RTP 结算窗口流水，单位金币',
  control_band_ppm BIGINT NOT NULL COMMENT '正常波动带，ppm',
  gift_price_reference BIGINT NOT NULL COMMENT '配置参考礼物价格',
@ -88,6 +91,26 @@ CREATE TABLE IF NOT EXISTS lucky_gift_rule_versions (
  effective_from_ms BIGINT NOT NULL COMMENT '生效时间，UTC epoch ms',
  created_by_admin_id BIGINT NOT NULL DEFAULT 0 COMMENT '发布人',
  created_at_ms BIGINT NOT NULL COMMENT '创建时间，UTC epoch ms',
+  initial_pool_coins BIGINT NOT NULL DEFAULT 0 COMMENT 'dynamic_v3 奖池首次物化的初始注资金币',
+  loss_streak_guarantee BIGINT NOT NULL DEFAULT 0 COMMENT '连续未中奖后的保底触发抽数',
+  low_watermark_coins BIGINT NOT NULL DEFAULT 0 COMMENT '低水位阈值金币',
+  low_water_nonzero_factor_ppm BIGINT NOT NULL DEFAULT 0 COMMENT '低水位非零奖档概率因子，ppm',
+  high_watermark_coins BIGINT NOT NULL DEFAULT 0 COMMENT '高水位阈值金币',
+  high_water_nonzero_factor_ppm BIGINT NOT NULL DEFAULT 0 COMMENT '高水位非零奖档概率因子，ppm',
+  recharge_boost_window_ms BIGINT NOT NULL DEFAULT 0 COMMENT '最近充值概率加权窗口，毫秒',
+  recharge_boost_factor_ppm BIGINT NOT NULL DEFAULT 0 COMMENT '最近充值非零奖档概率因子，ppm',
+  jackpot_multiplier_ppms JSON NOT NULL DEFAULT (JSON_ARRAY()) COMMENT '动态大奖倍率列表，1x=1000000',
+  jackpot_global_rtp_max_ppm BIGINT NOT NULL DEFAULT 0 COMMENT '动态大奖全局 RTP 上限，ppm',
+  jackpot_user_day_rtp_max_ppm BIGINT NOT NULL DEFAULT 0 COMMENT '动态大奖用户当日 RTP 上限，ppm',
+  jackpot_user_72h_rtp_max_ppm BIGINT NOT NULL DEFAULT 0 COMMENT '动态大奖用户滚动 72 小时 RTP 上限，ppm',
+  jackpot_spend_threshold_coins BIGINT NOT NULL DEFAULT 0 COMMENT '动态大奖用户消费门槛金币，由 App 显式换算 50 美元等值',
+  max_jackpot_hits_per_user_day BIGINT NOT NULL DEFAULT 0 COMMENT '单用户 UTC 日动态大奖命中上限',
+  max_single_payout BIGINT NOT NULL DEFAULT 0 COMMENT '单次返奖金币上限',
+  user_hourly_payout_cap BIGINT NOT NULL DEFAULT 0 COMMENT '单用户 UTC 小时返奖上限',
+  user_daily_payout_cap BIGINT NOT NULL DEFAULT 0 COMMENT '单用户 UTC 日返奖上限',
+  device_daily_payout_cap BIGINT NOT NULL DEFAULT 0 COMMENT '单设备 UTC 日返奖上限',
+  room_hourly_payout_cap BIGINT NOT NULL DEFAULT 0 COMMENT '单房间 UTC 小时返奖上限',
+  anchor_daily_payout_cap BIGINT NOT NULL DEFAULT 0 COMMENT '单主播 UTC 日返奖上限',
  PRIMARY KEY (app_code, pool_id, rule_version),
  KEY idx_lucky_gift_rule_versions_latest (app_code, pool_id, rule_version),
  KEY idx_lucky_gift_rule_versions_enabled (app_code, enabled, created_at_ms)
@ -98,6 +121,8 @@ CREATE TABLE IF NOT EXISTS lucky_gift_stage_tiers (
  pool_id VARCHAR(96) NOT NULL COMMENT '幸运礼物奖池 ID',
  rule_version BIGINT NOT NULL COMMENT '规则版本',
  stage VARCHAR(32) NOT NULL COMMENT 'novice/normal/advanced',
+  min_recharge_7d_coins BIGINT NOT NULL DEFAULT 0 COMMENT '进入该阶段的最近 7 日充值金币门槛',
+  min_recharge_30d_coins BIGINT NOT NULL DEFAULT 0 COMMENT '进入该阶段的最近 30 日充值金币门槛',
  tier_id VARCHAR(96) NOT NULL COMMENT '奖档 ID',
  multiplier_ppm BIGINT NOT NULL COMMENT '倍率，1x = 1000000',
  base_weight_ppm BIGINT NOT NULL COMMENT '正常模式基础概率，ppm',
@ -110,10 +135,10 @@ CREATE TABLE IF NOT EXISTS lucky_gift_stage_tiers (
 CREATE TABLE IF NOT EXISTS lucky_rtp_windows (
  app_code VARCHAR(32) NOT NULL DEFAULT 'lalu' COMMENT '应用编码',
  scope_type VARCHAR(32) NOT NULL COMMENT 'global 或 gift',
-  scope_id VARCHAR(96) NOT NULL COMMENT 'global 或规则作用域',
+  scope_id VARCHAR(128) NOT NULL COMMENT '奖池+不可变规则版本作用域',
  window_index BIGINT NOT NULL COMMENT 'RTP 窗口序号',
  target_rtp_ppm INT NOT NULL COMMENT '窗口目标 RTP',
-  control_window_draws BIGINT NOT NULL COMMENT '窗口抽数',
+  control_window_draws BIGINT NOT NULL COMMENT 'fixed_v2窗口抽数；dynamic_v3仅兼容展示，滚窗读取规则真实流水阈值',
  paid_draws BIGINT NOT NULL DEFAULT 0 COMMENT '窗口已抽次数',
  wager_coins BIGINT NOT NULL DEFAULT 0 COMMENT '窗口消耗金币',
  target_payout_coins BIGINT NOT NULL COMMENT '窗口目标基础返奖',
@ -134,11 +159,69 @@ CREATE TABLE IF NOT EXISTS lucky_pools (
  reserve_floor BIGINT NOT NULL DEFAULT 0 COMMENT '安全水位',
  total_in BIGINT NOT NULL DEFAULT 0 COMMENT '累计入池',
  total_out BIGINT NOT NULL DEFAULT 0 COMMENT '累计基础返奖支出',
+  profit_total BIGINT NOT NULL DEFAULT 0 COMMENT 'dynamic_v3 累计平台盈利拆账金币',
+  anchor_income_total BIGINT NOT NULL DEFAULT 0 COMMENT 'dynamic_v3 累计主播收益拆账金币',
+  initial_seed_total BIGINT NOT NULL DEFAULT 0 COMMENT 'dynamic_v3 累计初始注资金币，只在首次物化时增加',
  created_at_ms BIGINT NOT NULL COMMENT '创建时间，UTC epoch ms',
  updated_at_ms BIGINT NOT NULL COMMENT '更新时间，UTC epoch ms',
  PRIMARY KEY (app_code, scope_type, scope_id)
 ) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_unicode_ci COMMENT='幸运礼物单一基础奖池';

+CREATE TABLE IF NOT EXISTS lucky_risk_counters (
+  app_code VARCHAR(32) NOT NULL DEFAULT 'lalu' COMMENT '应用编码',
+  scope_type VARCHAR(32) NOT NULL COMMENT 'user/device/room/anchor',
+  scope_id VARCHAR(255) NOT NULL COMMENT 'pool_id+风控主体 ID；容纳96字符奖池与128字符设备',
+  window_type VARCHAR(32) NOT NULL COMMENT 'hour/day',
+  bucket_key VARCHAR(32) NOT NULL COMMENT 'UTC 窗口键',
+  payout_coins BIGINT NOT NULL DEFAULT 0 COMMENT '窗口内已支出可见奖励',
+  created_at_ms BIGINT NOT NULL COMMENT '创建时间，UTC epoch ms',
+  updated_at_ms BIGINT NOT NULL COMMENT '更新时间，UTC epoch ms',
+  PRIMARY KEY (app_code, scope_type, scope_id, window_type, bucket_key)
+) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_unicode_ci COMMENT='幸运礼物多维风控窗口计数';
+
+CREATE TABLE IF NOT EXISTS lucky_user_rtp_hour_buckets (
+  app_code VARCHAR(32) NOT NULL DEFAULT 'lalu' COMMENT '应用编码',
+  pool_id VARCHAR(96) NOT NULL COMMENT '幸运礼物奖池 ID',
+  user_id BIGINT NOT NULL COMMENT '用户 ID',
+  bucket_hour_ms BIGINT NOT NULL COMMENT 'UTC 小时开始时间，epoch ms',
+  wager_coins BIGINT NOT NULL DEFAULT 0 COMMENT '小时内抽奖流水金币',
+  payout_coins BIGINT NOT NULL DEFAULT 0 COMMENT '小时内返奖金币',
+  created_at_ms BIGINT NOT NULL COMMENT '创建时间，UTC epoch ms',
+  updated_at_ms BIGINT NOT NULL COMMENT '更新时间，UTC epoch ms',
+  PRIMARY KEY (app_code, pool_id, user_id, bucket_hour_ms),
+  KEY idx_lucky_user_rtp_hour_retention (app_code, bucket_hour_ms)
+) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_unicode_ci COMMENT='用户滚动72小时RTP完整小时聚合桶';
+
+-- 小时桶负责完整小时，边界事件只用于精确补齐 [now-72h,now) 两端不足一小时的片段。
+-- 这样热路径最多扫描 71 个小时桶和两个边界小时内的用户事件，不回扫全量抽奖事实。
+CREATE TABLE IF NOT EXISTS lucky_user_rtp_boundary_events (
+  app_code VARCHAR(32) NOT NULL DEFAULT 'lalu' COMMENT '应用编码',
+  pool_id VARCHAR(96) NOT NULL COMMENT '幸运礼物奖池 ID',
+  user_id BIGINT NOT NULL COMMENT '用户 ID',
+  draw_id VARCHAR(128) NOT NULL COMMENT '单抽事实 ID，用于幂等',
+  occurred_at_ms BIGINT NOT NULL COMMENT '扣费事实时间，UTC epoch ms',
+  wager_coins BIGINT NOT NULL COMMENT '本抽流水金币',
+  payout_coins BIGINT NOT NULL COMMENT '本抽已承诺返奖负债',
+  created_at_ms BIGINT NOT NULL COMMENT '创建时间，UTC epoch ms',
+  PRIMARY KEY (app_code, pool_id, user_id, draw_id),
+  KEY idx_lucky_user_rtp_boundary_range (app_code, pool_id, user_id, occurred_at_ms)
+) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_unicode_ci COMMENT='用户严格滚动72小时RTP边界事件';
+
+CREATE TABLE IF NOT EXISTS lucky_user_strategy_days (
+  app_code VARCHAR(32) NOT NULL DEFAULT 'lalu' COMMENT '应用编码',
+  pool_id VARCHAR(96) NOT NULL COMMENT '幸运礼物奖池 ID',
+  user_id BIGINT NOT NULL COMMENT '用户 ID',
+  stat_day DATE NOT NULL COMMENT 'UTC 自然日',
+  wager_coins BIGINT NOT NULL DEFAULT 0 COMMENT '当日抽奖流水金币',
+  payout_coins BIGINT NOT NULL DEFAULT 0 COMMENT '当日返奖金币',
+  spend_coins BIGINT NOT NULL DEFAULT 0 COMMENT '当日用于动态大奖资格的累计消费金币',
+  jackpot_hits BIGINT NOT NULL DEFAULT 0 COMMENT '当日动态大奖已命中次数',
+  created_at_ms BIGINT NOT NULL COMMENT '创建时间，UTC epoch ms',
+  updated_at_ms BIGINT NOT NULL COMMENT '更新时间，UTC epoch ms',
+  PRIMARY KEY (app_code, pool_id, user_id, stat_day),
+  KEY idx_lucky_user_strategy_days_retention (app_code, stat_day)
+) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_unicode_ci COMMENT='用户 dynamic_v3 UTC 日级消费、RTP 与大奖资格状态';
+
 CREATE TABLE IF NOT EXISTS lucky_user_states (
  app_code VARCHAR(32) NOT NULL DEFAULT 'lalu' COMMENT '应用编码',
  user_id BIGINT NOT NULL COMMENT '用户 ID',
@ -147,11 +230,21 @@ CREATE TABLE IF NOT EXISTS lucky_user_states (
  cumulative_wager_coins BIGINT NOT NULL DEFAULT 0 COMMENT '该用户在当前奖池累计消耗金币',
  equivalent_draws BIGINT NOT NULL DEFAULT 0 COMMENT '累计金币按规则参考价格折算后的等价抽数',
  loss_streak BIGINT NOT NULL DEFAULT 0 COMMENT '连续未获得可见奖励次数，中奖后清零',
+  pending_jackpot_tokens BIGINT NOT NULL DEFAULT 0 COMMENT '未消费大奖机会；按UTC日消费产生，资金不足时允许跨日保留',
  created_at_ms BIGINT NOT NULL COMMENT '创建时间，UTC epoch ms',
  updated_at_ms BIGINT NOT NULL COMMENT '更新时间，UTC epoch ms',
  PRIMARY KEY (app_code, user_id, gift_id)
 ) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_unicode_ci COMMENT='幸运礼物用户体验池状态';

+-- draw 事实不存在时 SELECT ... FOR UPDATE 没有可锁记录；该锁行保证同一钱包 command_id 的
+-- 首次并发请求串行执行，等待者在首事务提交后只回读原始结果，不重新随机或重复推进奖池。
+CREATE TABLE IF NOT EXISTS lucky_gift_command_locks (
+  app_code VARCHAR(32) NOT NULL DEFAULT 'lalu' COMMENT '应用编码',
+  command_id VARCHAR(128) NOT NULL COMMENT '钱包已扣费命令幂等 ID',
+  created_at_ms BIGINT NOT NULL COMMENT '首次请求时间，UTC epoch ms',
+  PRIMARY KEY (app_code, command_id)
+) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_unicode_ci COMMENT='内部幸运礼物并发幂等锁行';
+
 CREATE TABLE IF NOT EXISTS lucky_draw_records (
  app_code VARCHAR(32) NOT NULL DEFAULT 'lalu' COMMENT '应用编码',
  draw_id VARCHAR(128) NOT NULL COMMENT '抽奖 ID',
@ -257,6 +350,13 @@ CREATE TABLE IF NOT EXISTS lucky_draw_pool_stat_cursors (
  PRIMARY KEY (app_code, cursor_name)
 ) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_unicode_ci COMMENT='幸运礼物后台统计快照游标';

+CREATE TABLE IF NOT EXISTS external_lucky_gift_request_locks (
+  app_code VARCHAR(32) NOT NULL COMMENT '外部 App 应用编码',
+  request_id VARCHAR(128) NOT NULL COMMENT '外部业务幂等 ID',
+  created_at_ms BIGINT NOT NULL COMMENT '首次请求时间，UTC epoch ms',
+  PRIMARY KEY (app_code, request_id)
+) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_unicode_ci COMMENT='外部幸运礼物并发幂等锁行';
+
 CREATE TABLE IF NOT EXISTS external_lucky_gift_draws (
  app_code VARCHAR(32) NOT NULL COMMENT '外部 App 应用编码',
  request_id VARCHAR(128) NOT NULL COMMENT '外部 App 业务幂等 ID',
@ -282,3 +382,28 @@ CREATE TABLE IF NOT EXISTS external_lucky_gift_draws (
  KEY idx_external_lucky_pool (app_code, pool_id, created_at_ms),
  KEY idx_external_lucky_status (app_code, reward_status, created_at_ms)
 ) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_unicode_ci COMMENT='外部 App 幸运礼物抽奖事实表';
+
+CREATE TABLE IF NOT EXISTS external_lucky_gift_draw_items (
+  app_code VARCHAR(32) NOT NULL COMMENT '外部 App 应用编码',
+  request_id VARCHAR(128) NOT NULL COMMENT '聚合请求幂等 ID',
+  item_index INT NOT NULL COMMENT '从1开始的顺序子抽序号',
+  draw_id VARCHAR(128) NOT NULL COMMENT '子抽事实 ID',
+  command_id VARCHAR(128) NOT NULL COMMENT '稳定子命令 ID',
+  external_user_id VARCHAR(128) NOT NULL COMMENT '外部 App 用户 ID',
+  pool_id VARCHAR(96) NOT NULL COMMENT '幸运礼物奖池 ID',
+  rule_version BIGINT NOT NULL COMMENT '不可变规则版本',
+  unit_amount BIGINT NOT NULL COMMENT '本抽实际金额',
+  reward_amount BIGINT NOT NULL COMMENT '本抽奖励金额',
+  selected_tier_id VARCHAR(96) NOT NULL COMMENT '本抽最终奖档',
+  multiplier_ppm BIGINT NOT NULL COMMENT '本抽倍率',
+  stage VARCHAR(32) NOT NULL COMMENT '充值分层；缺可信外部充值事实时为novice',
+  candidate_snapshot_json JSON NOT NULL COMMENT '动态权重、删除重抽及大奖条件快照',
+  pool_snapshot_json JSON NOT NULL COMMENT '本抽资金拆分和池快照',
+  rtp_snapshot_json JSON NOT NULL COMMENT '本抽RTP快照',
+  reward_status VARCHAR(32) NOT NULL DEFAULT 'granted' COMMENT '外部调用方自行结算',
+  paid_at_ms BIGINT NOT NULL COMMENT '外部扣费时间，UTC epoch ms',
+  created_at_ms BIGINT NOT NULL COMMENT '创建时间，UTC epoch ms',
+  PRIMARY KEY (app_code, request_id, item_index),
+  UNIQUE KEY uk_external_lucky_item_draw (app_code, draw_id),
+  KEY idx_external_lucky_item_user (app_code, external_user_id, created_at_ms)
+) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_unicode_ci COMMENT='外部dynamic_v3顺序子抽审计';
--- a/services/lucky-gift-service/deploy/mysql/migrations/004_dynamic_strategy.sql
+++ b/services/lucky-gift-service/deploy/mysql/migrations/004_dynamic_strategy.sql
@ -0,0 +1,226 @@
+SET NAMES utf8mb4 COLLATE utf8mb4_unicode_ci;
+
+USE hyapp_lucky_gift;
+
+-- 每列独立探测，兼容“曾运行旧 002、未运行旧 002、004 执行到一半”三种线上状态；
+-- strategy_version 的默认值固定为 fixed_v2，确保已有不可变版本不会被动态规则重新解释。
+SET @ddl := IF((SELECT COUNT(*) FROM information_schema.COLUMNS WHERE TABLE_SCHEMA = DATABASE() AND TABLE_NAME = 'lucky_gift_rule_versions' AND COLUMN_NAME = 'strategy_version') = 0,
+  'ALTER TABLE lucky_gift_rule_versions ADD COLUMN strategy_version VARCHAR(32) NOT NULL DEFAULT ''fixed_v2'' COMMENT ''fixed_v2/dynamic_v3；旧版本固定按 fixed_v2 解释'' AFTER enabled', 'SELECT 1');
+PREPARE stmt FROM @ddl; EXECUTE stmt; DEALLOCATE PREPARE stmt;
+
+SET @ddl := IF((SELECT COUNT(*) FROM information_schema.COLUMNS WHERE TABLE_SCHEMA = DATABASE() AND TABLE_NAME = 'lucky_gift_rule_versions' AND COLUMN_NAME = 'profit_rate_ppm') = 0,
+  'ALTER TABLE lucky_gift_rule_versions ADD COLUMN profit_rate_ppm BIGINT NOT NULL DEFAULT 0 COMMENT ''平台盈利比例，ppm'' AFTER pool_rate_ppm', 'SELECT 1');
+PREPARE stmt FROM @ddl; EXECUTE stmt; DEALLOCATE PREPARE stmt;
+
+SET @ddl := IF((SELECT COUNT(*) FROM information_schema.COLUMNS WHERE TABLE_SCHEMA = DATABASE() AND TABLE_NAME = 'lucky_gift_rule_versions' AND COLUMN_NAME = 'anchor_rate_ppm') = 0,
+  'ALTER TABLE lucky_gift_rule_versions ADD COLUMN anchor_rate_ppm BIGINT NOT NULL DEFAULT 0 COMMENT ''主播收益比例，ppm'' AFTER profit_rate_ppm', 'SELECT 1');
+PREPARE stmt FROM @ddl; EXECUTE stmt; DEALLOCATE PREPARE stmt;
+
+SET @ddl := IF((SELECT COUNT(*) FROM information_schema.COLUMNS WHERE TABLE_SCHEMA = DATABASE() AND TABLE_NAME = 'lucky_gift_rule_versions' AND COLUMN_NAME = 'initial_pool_coins') = 0,
+  'ALTER TABLE lucky_gift_rule_versions ADD COLUMN initial_pool_coins BIGINT NOT NULL DEFAULT 0 COMMENT ''dynamic_v3 初始注资金币'' AFTER created_at_ms', 'SELECT 1');
+PREPARE stmt FROM @ddl; EXECUTE stmt; DEALLOCATE PREPARE stmt;
+
+SET @ddl := IF((SELECT COUNT(*) FROM information_schema.COLUMNS WHERE TABLE_SCHEMA = DATABASE() AND TABLE_NAME = 'lucky_gift_rule_versions' AND COLUMN_NAME = 'loss_streak_guarantee') = 0,
+  'ALTER TABLE lucky_gift_rule_versions ADD COLUMN loss_streak_guarantee BIGINT NOT NULL DEFAULT 0 COMMENT ''连续未中奖保底抽数'' AFTER initial_pool_coins', 'SELECT 1');
+PREPARE stmt FROM @ddl; EXECUTE stmt; DEALLOCATE PREPARE stmt;
+
+SET @ddl := IF((SELECT COUNT(*) FROM information_schema.COLUMNS WHERE TABLE_SCHEMA = DATABASE() AND TABLE_NAME = 'lucky_gift_rule_versions' AND COLUMN_NAME = 'low_watermark_coins') = 0,
+  'ALTER TABLE lucky_gift_rule_versions ADD COLUMN low_watermark_coins BIGINT NOT NULL DEFAULT 0 COMMENT ''低水位阈值金币'' AFTER loss_streak_guarantee', 'SELECT 1');
+PREPARE stmt FROM @ddl; EXECUTE stmt; DEALLOCATE PREPARE stmt;
+
+SET @ddl := IF((SELECT COUNT(*) FROM information_schema.COLUMNS WHERE TABLE_SCHEMA = DATABASE() AND TABLE_NAME = 'lucky_gift_rule_versions' AND COLUMN_NAME = 'low_water_nonzero_factor_ppm') = 0,
+  'ALTER TABLE lucky_gift_rule_versions ADD COLUMN low_water_nonzero_factor_ppm BIGINT NOT NULL DEFAULT 0 COMMENT ''低水位非零概率因子，ppm'' AFTER low_watermark_coins', 'SELECT 1');
+PREPARE stmt FROM @ddl; EXECUTE stmt; DEALLOCATE PREPARE stmt;
+
+SET @ddl := IF((SELECT COUNT(*) FROM information_schema.COLUMNS WHERE TABLE_SCHEMA = DATABASE() AND TABLE_NAME = 'lucky_gift_rule_versions' AND COLUMN_NAME = 'high_watermark_coins') = 0,
+  'ALTER TABLE lucky_gift_rule_versions ADD COLUMN high_watermark_coins BIGINT NOT NULL DEFAULT 0 COMMENT ''高水位阈值金币'' AFTER low_water_nonzero_factor_ppm', 'SELECT 1');
+PREPARE stmt FROM @ddl; EXECUTE stmt; DEALLOCATE PREPARE stmt;
+
+SET @ddl := IF((SELECT COUNT(*) FROM information_schema.COLUMNS WHERE TABLE_SCHEMA = DATABASE() AND TABLE_NAME = 'lucky_gift_rule_versions' AND COLUMN_NAME = 'high_water_nonzero_factor_ppm') = 0,
+  'ALTER TABLE lucky_gift_rule_versions ADD COLUMN high_water_nonzero_factor_ppm BIGINT NOT NULL DEFAULT 0 COMMENT ''高水位非零概率因子，ppm'' AFTER high_watermark_coins', 'SELECT 1');
+PREPARE stmt FROM @ddl; EXECUTE stmt; DEALLOCATE PREPARE stmt;
+
+SET @ddl := IF((SELECT COUNT(*) FROM information_schema.COLUMNS WHERE TABLE_SCHEMA = DATABASE() AND TABLE_NAME = 'lucky_gift_rule_versions' AND COLUMN_NAME = 'recharge_boost_window_ms') = 0,
+  'ALTER TABLE lucky_gift_rule_versions ADD COLUMN recharge_boost_window_ms BIGINT NOT NULL DEFAULT 0 COMMENT ''充值加权窗口毫秒'' AFTER high_water_nonzero_factor_ppm', 'SELECT 1');
+PREPARE stmt FROM @ddl; EXECUTE stmt; DEALLOCATE PREPARE stmt;
+
+SET @ddl := IF((SELECT COUNT(*) FROM information_schema.COLUMNS WHERE TABLE_SCHEMA = DATABASE() AND TABLE_NAME = 'lucky_gift_rule_versions' AND COLUMN_NAME = 'recharge_boost_factor_ppm') = 0,
+  'ALTER TABLE lucky_gift_rule_versions ADD COLUMN recharge_boost_factor_ppm BIGINT NOT NULL DEFAULT 0 COMMENT ''充值加权因子，ppm'' AFTER recharge_boost_window_ms', 'SELECT 1');
+PREPARE stmt FROM @ddl; EXECUTE stmt; DEALLOCATE PREPARE stmt;
+
+SET @ddl := IF((SELECT COUNT(*) FROM information_schema.COLUMNS WHERE TABLE_SCHEMA = DATABASE() AND TABLE_NAME = 'lucky_gift_rule_versions' AND COLUMN_NAME = 'jackpot_multiplier_ppms') = 0,
+  'ALTER TABLE lucky_gift_rule_versions ADD COLUMN jackpot_multiplier_ppms JSON NOT NULL DEFAULT (JSON_ARRAY()) COMMENT ''动态大奖倍率列表'' AFTER recharge_boost_factor_ppm', 'SELECT 1');
+PREPARE stmt FROM @ddl; EXECUTE stmt; DEALLOCATE PREPARE stmt;
+
+SET @ddl := IF((SELECT COUNT(*) FROM information_schema.COLUMNS WHERE TABLE_SCHEMA = DATABASE() AND TABLE_NAME = 'lucky_gift_rule_versions' AND COLUMN_NAME = 'jackpot_global_rtp_max_ppm') = 0,
+  'ALTER TABLE lucky_gift_rule_versions ADD COLUMN jackpot_global_rtp_max_ppm BIGINT NOT NULL DEFAULT 0 COMMENT ''全局大奖 RTP 上限'' AFTER jackpot_multiplier_ppms', 'SELECT 1');
+PREPARE stmt FROM @ddl; EXECUTE stmt; DEALLOCATE PREPARE stmt;
+
+SET @ddl := IF((SELECT COUNT(*) FROM information_schema.COLUMNS WHERE TABLE_SCHEMA = DATABASE() AND TABLE_NAME = 'lucky_gift_rule_versions' AND COLUMN_NAME = 'jackpot_user_day_rtp_max_ppm') = 0,
+  'ALTER TABLE lucky_gift_rule_versions ADD COLUMN jackpot_user_day_rtp_max_ppm BIGINT NOT NULL DEFAULT 0 COMMENT ''用户当日大奖 RTP 上限'' AFTER jackpot_global_rtp_max_ppm', 'SELECT 1');
+PREPARE stmt FROM @ddl; EXECUTE stmt; DEALLOCATE PREPARE stmt;
+
+SET @ddl := IF((SELECT COUNT(*) FROM information_schema.COLUMNS WHERE TABLE_SCHEMA = DATABASE() AND TABLE_NAME = 'lucky_gift_rule_versions' AND COLUMN_NAME = 'jackpot_user_72h_rtp_max_ppm') = 0,
+  'ALTER TABLE lucky_gift_rule_versions ADD COLUMN jackpot_user_72h_rtp_max_ppm BIGINT NOT NULL DEFAULT 0 COMMENT ''用户滚动72小时大奖 RTP 上限'' AFTER jackpot_user_day_rtp_max_ppm', 'SELECT 1');
+PREPARE stmt FROM @ddl; EXECUTE stmt; DEALLOCATE PREPARE stmt;
+
+SET @ddl := IF((SELECT COUNT(*) FROM information_schema.COLUMNS WHERE TABLE_SCHEMA = DATABASE() AND TABLE_NAME = 'lucky_gift_rule_versions' AND COLUMN_NAME = 'jackpot_spend_threshold_coins') = 0,
+  'ALTER TABLE lucky_gift_rule_versions ADD COLUMN jackpot_spend_threshold_coins BIGINT NOT NULL DEFAULT 0 COMMENT ''大奖消费门槛金币，需显式换算50美元等值'' AFTER jackpot_user_72h_rtp_max_ppm', 'SELECT 1');
+PREPARE stmt FROM @ddl; EXECUTE stmt; DEALLOCATE PREPARE stmt;
+
+SET @ddl := IF((SELECT COUNT(*) FROM information_schema.COLUMNS WHERE TABLE_SCHEMA = DATABASE() AND TABLE_NAME = 'lucky_gift_rule_versions' AND COLUMN_NAME = 'max_jackpot_hits_per_user_day') = 0,
+  'ALTER TABLE lucky_gift_rule_versions ADD COLUMN max_jackpot_hits_per_user_day BIGINT NOT NULL DEFAULT 0 COMMENT ''用户UTC日大奖命中上限'' AFTER jackpot_spend_threshold_coins', 'SELECT 1');
+PREPARE stmt FROM @ddl; EXECUTE stmt; DEALLOCATE PREPARE stmt;
+
+SET @ddl := IF((SELECT COUNT(*) FROM information_schema.COLUMNS WHERE TABLE_SCHEMA = DATABASE() AND TABLE_NAME = 'lucky_gift_rule_versions' AND COLUMN_NAME = 'max_single_payout') = 0,
+  'ALTER TABLE lucky_gift_rule_versions ADD COLUMN max_single_payout BIGINT NOT NULL DEFAULT 0 COMMENT ''单次返奖上限'' AFTER max_jackpot_hits_per_user_day', 'SELECT 1');
+PREPARE stmt FROM @ddl; EXECUTE stmt; DEALLOCATE PREPARE stmt;
+
+SET @ddl := IF((SELECT COUNT(*) FROM information_schema.COLUMNS WHERE TABLE_SCHEMA = DATABASE() AND TABLE_NAME = 'lucky_gift_rule_versions' AND COLUMN_NAME = 'user_hourly_payout_cap') = 0,
+  'ALTER TABLE lucky_gift_rule_versions ADD COLUMN user_hourly_payout_cap BIGINT NOT NULL DEFAULT 0 COMMENT ''用户UTC小时返奖上限'' AFTER max_single_payout', 'SELECT 1');
+PREPARE stmt FROM @ddl; EXECUTE stmt; DEALLOCATE PREPARE stmt;
+
+SET @ddl := IF((SELECT COUNT(*) FROM information_schema.COLUMNS WHERE TABLE_SCHEMA = DATABASE() AND TABLE_NAME = 'lucky_gift_rule_versions' AND COLUMN_NAME = 'user_daily_payout_cap') = 0,
+  'ALTER TABLE lucky_gift_rule_versions ADD COLUMN user_daily_payout_cap BIGINT NOT NULL DEFAULT 0 COMMENT ''用户UTC日返奖上限'' AFTER user_hourly_payout_cap', 'SELECT 1');
+PREPARE stmt FROM @ddl; EXECUTE stmt; DEALLOCATE PREPARE stmt;
+
+SET @ddl := IF((SELECT COUNT(*) FROM information_schema.COLUMNS WHERE TABLE_SCHEMA = DATABASE() AND TABLE_NAME = 'lucky_gift_rule_versions' AND COLUMN_NAME = 'device_daily_payout_cap') = 0,
+  'ALTER TABLE lucky_gift_rule_versions ADD COLUMN device_daily_payout_cap BIGINT NOT NULL DEFAULT 0 COMMENT ''设备UTC日返奖上限'' AFTER user_daily_payout_cap', 'SELECT 1');
+PREPARE stmt FROM @ddl; EXECUTE stmt; DEALLOCATE PREPARE stmt;
+
+SET @ddl := IF((SELECT COUNT(*) FROM information_schema.COLUMNS WHERE TABLE_SCHEMA = DATABASE() AND TABLE_NAME = 'lucky_gift_rule_versions' AND COLUMN_NAME = 'room_hourly_payout_cap') = 0,
+  'ALTER TABLE lucky_gift_rule_versions ADD COLUMN room_hourly_payout_cap BIGINT NOT NULL DEFAULT 0 COMMENT ''房间UTC小时返奖上限'' AFTER device_daily_payout_cap', 'SELECT 1');
+PREPARE stmt FROM @ddl; EXECUTE stmt; DEALLOCATE PREPARE stmt;
+
+SET @ddl := IF((SELECT COUNT(*) FROM information_schema.COLUMNS WHERE TABLE_SCHEMA = DATABASE() AND TABLE_NAME = 'lucky_gift_rule_versions' AND COLUMN_NAME = 'anchor_daily_payout_cap') = 0,
+  'ALTER TABLE lucky_gift_rule_versions ADD COLUMN anchor_daily_payout_cap BIGINT NOT NULL DEFAULT 0 COMMENT ''主播UTC日返奖上限'' AFTER room_hourly_payout_cap', 'SELECT 1');
+PREPARE stmt FROM @ddl; EXECUTE stmt; DEALLOCATE PREPARE stmt;
+
+SET @ddl := IF((SELECT COUNT(*) FROM information_schema.COLUMNS WHERE TABLE_SCHEMA = DATABASE() AND TABLE_NAME = 'lucky_gift_stage_tiers' AND COLUMN_NAME = 'min_recharge_7d_coins') = 0,
+  'ALTER TABLE lucky_gift_stage_tiers ADD COLUMN min_recharge_7d_coins BIGINT NOT NULL DEFAULT 0 COMMENT ''阶段最近7日充值金币门槛'' AFTER stage', 'SELECT 1');
+PREPARE stmt FROM @ddl; EXECUTE stmt; DEALLOCATE PREPARE stmt;
+
+SET @ddl := IF((SELECT COUNT(*) FROM information_schema.COLUMNS WHERE TABLE_SCHEMA = DATABASE() AND TABLE_NAME = 'lucky_gift_stage_tiers' AND COLUMN_NAME = 'min_recharge_30d_coins') = 0,
+  'ALTER TABLE lucky_gift_stage_tiers ADD COLUMN min_recharge_30d_coins BIGINT NOT NULL DEFAULT 0 COMMENT ''阶段最近30日充值金币门槛'' AFTER min_recharge_7d_coins', 'SELECT 1');
+PREPARE stmt FROM @ddl; EXECUTE stmt; DEALLOCATE PREPARE stmt;
+
+SET @ddl := IF((SELECT COUNT(*) FROM information_schema.COLUMNS WHERE TABLE_SCHEMA = DATABASE() AND TABLE_NAME = 'lucky_pools' AND COLUMN_NAME = 'profit_total') = 0,
+  'ALTER TABLE lucky_pools ADD COLUMN profit_total BIGINT NOT NULL DEFAULT 0 COMMENT ''累计平台盈利拆账金币'' AFTER total_out', 'SELECT 1');
+PREPARE stmt FROM @ddl; EXECUTE stmt; DEALLOCATE PREPARE stmt;
+
+SET @ddl := IF((SELECT COUNT(*) FROM information_schema.COLUMNS WHERE TABLE_SCHEMA = DATABASE() AND TABLE_NAME = 'lucky_pools' AND COLUMN_NAME = 'anchor_income_total') = 0,
+  'ALTER TABLE lucky_pools ADD COLUMN anchor_income_total BIGINT NOT NULL DEFAULT 0 COMMENT ''累计主播收益拆账金币'' AFTER profit_total', 'SELECT 1');
+PREPARE stmt FROM @ddl; EXECUTE stmt; DEALLOCATE PREPARE stmt;
+
+SET @ddl := IF((SELECT COUNT(*) FROM information_schema.COLUMNS WHERE TABLE_SCHEMA = DATABASE() AND TABLE_NAME = 'lucky_pools' AND COLUMN_NAME = 'initial_seed_total') = 0,
+  'ALTER TABLE lucky_pools ADD COLUMN initial_seed_total BIGINT NOT NULL DEFAULT 0 COMMENT ''累计初始注资金币'' AFTER anchor_income_total', 'SELECT 1');
+PREPARE stmt FROM @ddl; EXECUTE stmt; DEALLOCATE PREPARE stmt;
+
+-- 消费门槛按 UTC 日累计，但已经赚到的机会在池不足时必须跨日保留；因此 token 属于用户/奖池状态，不能放在日表。
+SET @ddl := IF((SELECT COUNT(*) FROM information_schema.COLUMNS WHERE TABLE_SCHEMA = DATABASE() AND TABLE_NAME = 'lucky_user_states' AND COLUMN_NAME = 'pending_jackpot_tokens') = 0,
+  'ALTER TABLE lucky_user_states ADD COLUMN pending_jackpot_tokens BIGINT NOT NULL DEFAULT 0 COMMENT ''未消费大奖机会；资金不足时允许跨日保留'' AFTER loss_streak', 'SELECT 1');
+PREPARE stmt FROM @ddl; EXECUTE stmt; DEALLOCATE PREPARE stmt;
+
+-- pool_id 最长 96；RTP 还拼接 :v<rule_version>，风控还拼接最长 128 的设备/房间主体，旧列宽会在合法输入上截断。
+SET @ddl := IF((SELECT COALESCE(CHARACTER_MAXIMUM_LENGTH, 0) FROM information_schema.COLUMNS WHERE TABLE_SCHEMA = DATABASE() AND TABLE_NAME = 'lucky_rtp_windows' AND COLUMN_NAME = 'scope_id') < 128,
+  'ALTER TABLE lucky_rtp_windows MODIFY COLUMN scope_id VARCHAR(128) NOT NULL COMMENT ''奖池+不可变规则版本作用域''', 'SELECT 1');
+PREPARE stmt FROM @ddl; EXECUTE stmt; DEALLOCATE PREPARE stmt;
+
+SET @ddl := IF((SELECT COALESCE(CHARACTER_MAXIMUM_LENGTH, 0) FROM information_schema.COLUMNS WHERE TABLE_SCHEMA = DATABASE() AND TABLE_NAME = 'lucky_risk_counters' AND COLUMN_NAME = 'scope_id') < 255,
+  'ALTER TABLE lucky_risk_counters MODIFY COLUMN scope_id VARCHAR(255) NOT NULL COMMENT ''pool_id+风控主体 ID''', 'SELECT 1');
+PREPARE stmt FROM @ddl; EXECUTE stmt; DEALLOCATE PREPARE stmt;
+
+-- 三张运行状态表都是 owner 库内聚合/计数事实；热路径只锁这些小表，禁止回扫开奖结果明细计算 72h RTP 或风控额度。
+CREATE TABLE IF NOT EXISTS lucky_risk_counters (
+  app_code VARCHAR(32) NOT NULL DEFAULT 'lalu' COMMENT '应用编码',
+  scope_type VARCHAR(32) NOT NULL COMMENT 'user/device/room/anchor',
+  scope_id VARCHAR(255) NOT NULL COMMENT '风控主体 ID，运行侧包含 pool 前缀',
+  window_type VARCHAR(32) NOT NULL COMMENT 'hour/day',
+  bucket_key VARCHAR(32) NOT NULL COMMENT 'UTC 窗口键',
+  payout_coins BIGINT NOT NULL DEFAULT 0 COMMENT '窗口内已支出可见奖励',
+  created_at_ms BIGINT NOT NULL COMMENT '创建时间，UTC epoch ms',
+  updated_at_ms BIGINT NOT NULL COMMENT '更新时间，UTC epoch ms',
+  PRIMARY KEY (app_code, scope_type, scope_id, window_type, bucket_key)
+) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_unicode_ci COMMENT='幸运礼物多维风控窗口计数';
+
+CREATE TABLE IF NOT EXISTS lucky_user_rtp_hour_buckets (
+  app_code VARCHAR(32) NOT NULL DEFAULT 'lalu' COMMENT '应用编码',
+  pool_id VARCHAR(96) NOT NULL COMMENT '幸运礼物奖池 ID',
+  user_id BIGINT NOT NULL COMMENT '用户 ID',
+  bucket_hour_ms BIGINT NOT NULL COMMENT 'UTC 小时开始时间，epoch ms',
+  wager_coins BIGINT NOT NULL DEFAULT 0 COMMENT '小时内抽奖流水金币',
+  payout_coins BIGINT NOT NULL DEFAULT 0 COMMENT '小时内返奖金币',
+  created_at_ms BIGINT NOT NULL COMMENT '创建时间，UTC epoch ms',
+  updated_at_ms BIGINT NOT NULL COMMENT '更新时间，UTC epoch ms',
+  PRIMARY KEY (app_code, pool_id, user_id, bucket_hour_ms),
+  KEY idx_lucky_user_rtp_hour_retention (app_code, bucket_hour_ms)
+) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_unicode_ci COMMENT='用户滚动72小时RTP小时桶';
+
+CREATE TABLE IF NOT EXISTS lucky_user_rtp_boundary_events (
+  app_code VARCHAR(32) NOT NULL DEFAULT 'lalu' COMMENT '应用编码',
+  pool_id VARCHAR(96) NOT NULL COMMENT '幸运礼物奖池 ID',
+  user_id BIGINT NOT NULL COMMENT '用户 ID',
+  draw_id VARCHAR(128) NOT NULL COMMENT '单抽事实 ID，用于幂等',
+  occurred_at_ms BIGINT NOT NULL COMMENT '扣费事实时间，UTC epoch ms',
+  wager_coins BIGINT NOT NULL COMMENT '本抽流水金币',
+  payout_coins BIGINT NOT NULL COMMENT '本抽已承诺返奖负债',
+  created_at_ms BIGINT NOT NULL COMMENT '创建时间，UTC epoch ms',
+  PRIMARY KEY (app_code, pool_id, user_id, draw_id),
+  KEY idx_lucky_user_rtp_boundary_range (app_code, pool_id, user_id, occurred_at_ms)
+) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_unicode_ci COMMENT='用户严格滚动72小时RTP边界事件';
+
+CREATE TABLE IF NOT EXISTS lucky_user_strategy_days (
+  app_code VARCHAR(32) NOT NULL DEFAULT 'lalu' COMMENT '应用编码',
+  pool_id VARCHAR(96) NOT NULL COMMENT '幸运礼物奖池 ID',
+  user_id BIGINT NOT NULL COMMENT '用户 ID',
+  stat_day DATE NOT NULL COMMENT 'UTC 自然日',
+  wager_coins BIGINT NOT NULL DEFAULT 0 COMMENT '当日抽奖流水金币',
+  payout_coins BIGINT NOT NULL DEFAULT 0 COMMENT '当日返奖金币',
+  spend_coins BIGINT NOT NULL DEFAULT 0 COMMENT '当日大奖资格累计消费金币',
+  jackpot_hits BIGINT NOT NULL DEFAULT 0 COMMENT '当日大奖命中次数',
+  created_at_ms BIGINT NOT NULL COMMENT '创建时间，UTC epoch ms',
+  updated_at_ms BIGINT NOT NULL COMMENT '更新时间，UTC epoch ms',
+  PRIMARY KEY (app_code, pool_id, user_id, stat_day),
+  KEY idx_lucky_user_strategy_days_retention (app_code, stat_day)
+) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_unicode_ci COMMENT='用户dynamic_v3 UTC日级状态';
+
+-- 旧库只有 lucky_draw_records 唯一键，两个尚无结果的首次请求仍可能同时穿过空读并让后到者失败。
+-- 独立锁行先串行化原始 command_id，后到请求再回读首次事务一次性提交的全部子抽事实。
+CREATE TABLE IF NOT EXISTS lucky_gift_command_locks (
+  app_code VARCHAR(32) NOT NULL DEFAULT 'lalu' COMMENT '应用编码',
+  command_id VARCHAR(128) NOT NULL COMMENT '钱包已扣费命令幂等 ID',
+  created_at_ms BIGINT NOT NULL COMMENT '首次请求时间，UTC epoch ms',
+  PRIMARY KEY (app_code, command_id)
+) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_unicode_ci COMMENT='内部幸运礼物并发幂等锁行';
+
+CREATE TABLE IF NOT EXISTS external_lucky_gift_draw_items (
+  app_code VARCHAR(32) NOT NULL COMMENT '外部 App 应用编码',
+  request_id VARCHAR(128) NOT NULL COMMENT '聚合请求幂等 ID',
+  item_index INT NOT NULL COMMENT '从1开始的顺序子抽序号',
+  draw_id VARCHAR(128) NOT NULL COMMENT '子抽事实 ID',
+  command_id VARCHAR(128) NOT NULL COMMENT '稳定子命令 ID',
+  external_user_id VARCHAR(128) NOT NULL COMMENT '外部 App 用户 ID',
+  pool_id VARCHAR(96) NOT NULL COMMENT '幸运礼物奖池 ID',
+  rule_version BIGINT NOT NULL COMMENT '不可变规则版本',
+  unit_amount BIGINT NOT NULL COMMENT '本抽实际金额',
+  reward_amount BIGINT NOT NULL COMMENT '本抽奖励金额',
+  selected_tier_id VARCHAR(96) NOT NULL COMMENT '本抽最终奖档',
+  multiplier_ppm BIGINT NOT NULL COMMENT '本抽倍率',
+  stage VARCHAR(32) NOT NULL COMMENT '充值分层',
+  candidate_snapshot_json JSON NOT NULL COMMENT '动态权重、删除重抽及大奖条件快照',
+  pool_snapshot_json JSON NOT NULL COMMENT '本抽资金拆分和池快照',
+  rtp_snapshot_json JSON NOT NULL COMMENT '本抽RTP快照',
+  reward_status VARCHAR(32) NOT NULL DEFAULT 'granted' COMMENT '外部调用方自行结算',
+  paid_at_ms BIGINT NOT NULL COMMENT '外部扣费时间，UTC epoch ms',
+  created_at_ms BIGINT NOT NULL COMMENT '创建时间，UTC epoch ms',
+  PRIMARY KEY (app_code, request_id, item_index),
+  UNIQUE KEY uk_external_lucky_item_draw (app_code, draw_id),
+  KEY idx_external_lucky_item_user (app_code, external_user_id, created_at_ms)
+) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_unicode_ci COMMENT='外部dynamic_v3顺序子抽审计';
+
+CREATE TABLE IF NOT EXISTS external_lucky_gift_request_locks (
+  app_code VARCHAR(32) NOT NULL COMMENT '外部 App 应用编码',
+  request_id VARCHAR(128) NOT NULL COMMENT '外部业务幂等 ID',
+  created_at_ms BIGINT NOT NULL COMMENT '首次请求时间，UTC epoch ms',
+  PRIMARY KEY (app_code, request_id)
+) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_unicode_ci COMMENT='外部幸运礼物并发幂等锁行';
--- a/services/lucky-gift-service/internal/domain/luckygift/lucky_gift.go
+++ b/services/lucky-gift-service/internal/domain/luckygift/lucky_gift.go
@ -19,6 +19,10 @@ const (
 	StageNormal   = "normal"
 	StageAdvanced = "advanced"

+	// StrategyFixedV2 保留现网不可变规则的原始语义；只有显式发布 StrategyDynamicV3 才启用动态水位、充值加权和多维风控。
+	StrategyFixedV2   = "fixed_v2"
+	StrategyDynamicV3 = "dynamic_v3"
+
 	EventTypeLuckyGiftDrawn            = "LuckyGiftDrawn"
 	EventTypeLuckyGiftRewardSettlement = "LuckyGiftRewardSettlement"
 	EventTypeExternalLuckyGiftDrawn    = "ExternalLuckyGiftDrawn"
@ -37,28 +41,55 @@ type Tier struct {

 // Config 是幸运礼物线上规则快照。金额均为整数金币，比例均为 ppm。
 type Config struct {
-	AppCode                  string  `json:"app_code"`
-	GiftID                   string  `json:"gift_id"`
-	PoolID                   string  `json:"pool_id"`
-	Enabled                  bool    `json:"enabled"`
-	RuleVersion              int64   `json:"rule_version"`
-	GiftPrice                int64   `json:"gift_price"`
-	TargetRTPPPM             int64   `json:"target_rtp_ppm"`
-	PoolRatePPM              int64   `json:"pool_rate_ppm"`
-	ControlBandPPM           int64   `json:"control_band_ppm"`
-	GlobalWindowDraws        int64   `json:"global_window_draws"`
-	GiftWindowDraws          int64   `json:"gift_window_draws"`
-	NoviceMaxEquivalentDraws int64   `json:"novice_max_equivalent_draws"`
-	NormalMaxEquivalentDraws int64   `json:"normal_max_equivalent_draws"`
-	HighMultiplier           int64   `json:"high_multiplier"`
-	HighWaterPoolMultiple    int64   `json:"high_water_pool_multiple"`
-	InitialBasePool          int64   `json:"initial_base_pool"`
-	BasePoolReserve          int64   `json:"base_pool_reserve"`
-	MultiplierPPMs           []int64 `json:"multiplier_ppms"`
-	Tiers                    []Tier  `json:"tiers"`
-	UpdatedByAdminID         int64   `json:"updated_by_admin_id"`
-	CreatedAtMS              int64   `json:"created_at_ms"`
-	UpdatedAtMS              int64   `json:"updated_at_ms"`
+	AppCode         string `json:"app_code"`
+	GiftID          string `json:"gift_id"`
+	PoolID          string `json:"pool_id"`
+	Enabled         bool   `json:"enabled"`
+	RuleVersion     int64  `json:"rule_version"`
+	StrategyVersion string `json:"strategy_version"`
+	GiftPrice       int64  `json:"gift_price"`
+	TargetRTPPPM    int64  `json:"target_rtp_ppm"`
+	PoolRatePPM     int64  `json:"pool_rate_ppm"`
+	ProfitRatePPM   int64  `json:"profit_rate_ppm"`
+	AnchorRatePPM   int64  `json:"anchor_rate_ppm"`
+	ControlBandPPM  int64  `json:"control_band_ppm"`
+	// SettlementWindowWager 是 dynamic_v3 结算窗口的真实金币流水阈值；不能按参考礼物价格换算成抽数。
+	SettlementWindowWager      int64   `json:"settlement_window_wager"`
+	GlobalWindowDraws          int64   `json:"global_window_draws"`
+	GiftWindowDraws            int64   `json:"gift_window_draws"`
+	NoviceMaxEquivalentDraws   int64   `json:"novice_max_equivalent_draws"`
+	NormalMaxEquivalentDraws   int64   `json:"normal_max_equivalent_draws"`
+	HighMultiplier             int64   `json:"high_multiplier"`
+	HighWaterPoolMultiple      int64   `json:"high_water_pool_multiple"`
+	InitialBasePool            int64   `json:"initial_base_pool"`
+	BasePoolReserve            int64   `json:"base_pool_reserve"`
+	InitialPoolCoins           int64   `json:"initial_pool_coins"`
+	LossStreakGuarantee        int64   `json:"loss_streak_guarantee"`
+	LowWatermarkCoins          int64   `json:"low_watermark_coins"`
+	LowWaterNonzeroFactorPPM   int64   `json:"low_water_nonzero_factor_ppm"`
+	HighWatermarkCoins         int64   `json:"high_watermark_coins"`
+	HighWaterNonzeroFactorPPM  int64   `json:"high_water_nonzero_factor_ppm"`
+	RechargeBoostWindowMS      int64   `json:"recharge_boost_window_ms"`
+	RechargeBoostFactorPPM     int64   `json:"recharge_boost_factor_ppm"`
+	JackpotMultiplierPPMs      []int64 `json:"jackpot_multiplier_ppms"`
+	JackpotGlobalRTPMaxPPM     int64   `json:"jackpot_global_rtp_max_ppm"`
+	JackpotUserDayRTPMaxPPM    int64   `json:"jackpot_user_day_rtp_max_ppm"`
+	JackpotUser72hRTPMaxPPM    int64   `json:"jackpot_user_72h_rtp_max_ppm"`
+	JackpotSpendThresholdCoins int64   `json:"jackpot_spend_threshold_coins"`
+	MaxJackpotHitsPerUserDay   int64   `json:"max_jackpot_hits_per_user_day"`
+	MaxSinglePayout            int64   `json:"max_single_payout"`
+	UserHourlyPayoutCap        int64   `json:"user_hourly_payout_cap"`
+	UserDailyPayoutCap         int64   `json:"user_daily_payout_cap"`
+	DeviceDailyPayoutCap       int64   `json:"device_daily_payout_cap"`
+	RoomHourlyPayoutCap        int64   `json:"room_hourly_payout_cap"`
+	AnchorDailyPayoutCap       int64   `json:"anchor_daily_payout_cap"`
+	MultiplierPPMs             []int64 `json:"multiplier_ppms"`
+	// Stages 保留 dynamic_v3 的充值门槛；Tiers 仍是 fixed_v2 候选选择使用的扁平运行结构。
+	Stages           []RuleStage `json:"stages"`
+	Tiers            []Tier      `json:"tiers"`
+	UpdatedByAdminID int64       `json:"updated_by_admin_id"`
+	CreatedAtMS      int64       `json:"created_at_ms"`
+	UpdatedAtMS      int64       `json:"updated_at_ms"`
 }

 // RuleTier 是 v2 配置契约里的阶段奖档。倍率和概率在服务端内部统一用 ppm 保存。
@ -73,27 +104,53 @@ type RuleTier struct {

 // RuleStage 保存某个用户阶段的完整奖档概率。每个阶段的基础概率必须合计 1000000。
 type RuleStage struct {
-	Stage string     `json:"stage"`
-	Tiers []RuleTier `json:"tiers"`
+	Stage               string     `json:"stage"`
+	MinRecharge7DCoins  int64      `json:"min_recharge_7d_coins"`
+	MinRecharge30DCoins int64      `json:"min_recharge_30d_coins"`
+	Tiers               []RuleTier `json:"tiers"`
 }

-// RuleConfig 是幸运礼物 v2 配置版本快照。比例和倍率均为 ppm，业务单位转换发生在发布入口。
+// RuleConfig 是幸运礼物不可变配置版本快照。fixed_v2 与 dynamic_v3 共用基础 RTP 契约，动态字段只由后者解释；
+// 比例和倍率统一使用 ppm，后台百分比/倍率业务单位只在发布入口转换。
 type RuleConfig struct {
-	AppCode                  string      `json:"app_code"`
-	PoolID                   string      `json:"pool_id"`
-	RuleVersion              int64       `json:"rule_version"`
-	Enabled                  bool        `json:"enabled"`
-	TargetRTPPPM             int64       `json:"target_rtp_ppm"`
-	PoolRatePPM              int64       `json:"pool_rate_ppm"`
-	SettlementWindowWager    int64       `json:"settlement_window_wager"`
-	ControlBandPPM           int64       `json:"control_band_ppm"`
-	GiftPriceReference       int64       `json:"gift_price_reference"`
-	NoviceMaxEquivalentDraws int64       `json:"novice_max_equivalent_draws"`
-	NormalMaxEquivalentDraws int64       `json:"normal_max_equivalent_draws"`
-	EffectiveFromMS          int64       `json:"effective_from_ms"`
-	CreatedByAdminID         int64       `json:"created_by_admin_id"`
-	CreatedAtMS              int64       `json:"created_at_ms"`
-	Stages                   []RuleStage `json:"stages"`
+	AppCode                    string      `json:"app_code"`
+	PoolID                     string      `json:"pool_id"`
+	RuleVersion                int64       `json:"rule_version"`
+	StrategyVersion            string      `json:"strategy_version"`
+	Enabled                    bool        `json:"enabled"`
+	TargetRTPPPM               int64       `json:"target_rtp_ppm"`
+	PoolRatePPM                int64       `json:"pool_rate_ppm"`
+	ProfitRatePPM              int64       `json:"profit_rate_ppm"`
+	AnchorRatePPM              int64       `json:"anchor_rate_ppm"`
+	SettlementWindowWager      int64       `json:"settlement_window_wager"`
+	ControlBandPPM             int64       `json:"control_band_ppm"`
+	GiftPriceReference         int64       `json:"gift_price_reference"`
+	NoviceMaxEquivalentDraws   int64       `json:"novice_max_equivalent_draws"`
+	NormalMaxEquivalentDraws   int64       `json:"normal_max_equivalent_draws"`
+	EffectiveFromMS            int64       `json:"effective_from_ms"`
+	CreatedByAdminID           int64       `json:"created_by_admin_id"`
+	CreatedAtMS                int64       `json:"created_at_ms"`
+	InitialPoolCoins           int64       `json:"initial_pool_coins"`
+	LossStreakGuarantee        int64       `json:"loss_streak_guarantee"`
+	LowWatermarkCoins          int64       `json:"low_watermark_coins"`
+	LowWaterNonzeroFactorPPM   int64       `json:"low_water_nonzero_factor_ppm"`
+	HighWatermarkCoins         int64       `json:"high_watermark_coins"`
+	HighWaterNonzeroFactorPPM  int64       `json:"high_water_nonzero_factor_ppm"`
+	RechargeBoostWindowMS      int64       `json:"recharge_boost_window_ms"`
+	RechargeBoostFactorPPM     int64       `json:"recharge_boost_factor_ppm"`
+	JackpotMultiplierPPMs      []int64     `json:"jackpot_multiplier_ppms"`
+	JackpotGlobalRTPMaxPPM     int64       `json:"jackpot_global_rtp_max_ppm"`
+	JackpotUserDayRTPMaxPPM    int64       `json:"jackpot_user_day_rtp_max_ppm"`
+	JackpotUser72hRTPMaxPPM    int64       `json:"jackpot_user_72h_rtp_max_ppm"`
+	JackpotSpendThresholdCoins int64       `json:"jackpot_spend_threshold_coins"`
+	MaxJackpotHitsPerUserDay   int64       `json:"max_jackpot_hits_per_user_day"`
+	MaxSinglePayout            int64       `json:"max_single_payout"`
+	UserHourlyPayoutCap        int64       `json:"user_hourly_payout_cap"`
+	UserDailyPayoutCap         int64       `json:"user_daily_payout_cap"`
+	DeviceDailyPayoutCap       int64       `json:"device_daily_payout_cap"`
+	RoomHourlyPayoutCap        int64       `json:"room_hourly_payout_cap"`
+	AnchorDailyPayoutCap       int64       `json:"anchor_daily_payout_cap"`
+	Stages                     []RuleStage `json:"stages"`
 }

 type CheckCommand struct {
@ -104,19 +161,23 @@ type CheckCommand struct {
 }

 type DrawCommand struct {
-	CommandID       string
-	PoolID          string
-	UserID          int64
-	TargetUserID    int64
-	DeviceID        string
-	RoomID          string
-	AnchorID        string
-	GiftID          string
-	GiftCount       int32
-	CoinSpent       int64
-	PaidAtMS        int64
-	VisibleRegionID int64
-	CountryID       int64
+	CommandID         string
+	PoolID            string
+	UserID            int64
+	TargetUserID      int64
+	DeviceID          string
+	RoomID            string
+	AnchorID          string
+	GiftID            string
+	GiftCount         int32
+	CoinSpent         int64
+	PaidAtMS          int64
+	VisibleRegionID   int64
+	CountryID         int64
+	Recharge7DCoins   int64
+	Recharge30DCoins  int64
+	LastRechargedAtMS int64
+	GiftIncomeCoins   int64
 	// Sender* 是扣费时刻的公开展示快照；owner outbox 必须携带快照，避免下游为一条飘屏同步反查 user-service。
 	SenderName                string
 	SenderAvatar              string
@ -125,14 +186,15 @@ type DrawCommand struct {
 }

 type CheckResult struct {
-	Enabled        bool
-	Reason         string
-	PoolID         string
-	GiftID         string
-	GiftPrice      int64
-	RuleVersion    int64
-	TargetRTPPPM   int64
-	ExperiencePool string
+	Enabled         bool
+	Reason          string
+	PoolID          string
+	GiftID          string
+	GiftPrice       int64
+	RuleVersion     int64
+	StrategyVersion string
+	TargetRTPPPM    int64
+	ExperiencePool  string
 }

 type DrawResult struct {
@ -229,14 +291,16 @@ type DrawQuery struct {
 type ExternalDrawCommand struct {
 	AppCode        string
 	ExternalUserID string
-	RequestID      string
-	GiftCount      int64
-	UnitAmount     int64
-	TotalAmount    int64
-	Currency       string
-	PaidAtMS       int64
-	MetadataJSON   string
-	PoolID         string
+	// DeviceID 是外部调用方在自己认证/签名边界内绑定的稳定设备标识；dynamic_v3 必填。
+	DeviceID     string
+	RequestID    string
+	GiftCount    int64
+	UnitAmount   int64
+	TotalAmount  int64
+	Currency     string
+	PaidAtMS     int64
+	MetadataJSON string
+	PoolID       string
 }

 // ExternalDrawResult 是返回给外部 App 的最终抽奖结果。
--- a/services/lucky-gift-service/internal/domain/luckygift/strategy.go
+++ b/services/lucky-gift-service/internal/domain/luckygift/strategy.go
--- a/services/lucky-gift-service/internal/domain/luckygift/strategy_test.go
+++ b/services/lucky-gift-service/internal/domain/luckygift/strategy_test.go
@ -0,0 +1,442 @@
+package luckygift
+
+import (
+	"fmt"
+	"reflect"
+	"testing"
+)
+
+type scriptedStrategyRandom struct {
+	t        *testing.T
+	indexes  []int64
+	bounds   []int64
+	position int
+}
+
+func (r *scriptedStrategyRandom) Int63n(n int64) (int64, error) {
+	r.t.Helper()
+	if r.position >= len(r.indexes) {
+		return 0, fmt.Errorf("scripted RNG exhausted at bound %d", n)
+	}
+	if len(r.bounds) > r.position && r.bounds[r.position] != n {
+		r.t.Fatalf("random call %d bound=%d want=%d", r.position, n, r.bounds[r.position])
+	}
+	value := r.indexes[r.position]
+	r.position++
+	return value, nil
+}
+
+func strategyTestConfig() StrategyConfig {
+	config := DefaultLuckyGiftStrategyConfig()
+	// The 0/5/50/200/1000 table is the supplied image's deliberately unsafe
+	// 2650% example. It is a test fixture only; the exported default stays at 98%.
+	config.Tiers = []StrategyTier{
+		{ID: "0x", MultiplierPPM: 0, BaseWeightPPM: 600_000, Enabled: true},
+		{ID: "5x", MultiplierPPM: 5_000_000, BaseWeightPPM: 200_000, Enabled: true},
+		{ID: "50x", MultiplierPPM: 50_000_000, BaseWeightPPM: 150_000, Enabled: true},
+		{ID: "200x", MultiplierPPM: 200_000_000, BaseWeightPPM: 40_000, Jackpot: true, JackpotWeight: 4, Enabled: true},
+		{ID: "500x", MultiplierPPM: 500_000_000, BaseWeightPPM: 0, Jackpot: true, JackpotWeight: 2, Enabled: true},
+		{ID: "1000x", MultiplierPPM: 1_000_000_000, BaseWeightPPM: 10_000, Jackpot: true, JackpotWeight: 1, Enabled: true},
+	}
+	// Core P/W tests isolate the base distribution; dynamic factors have dedicated
+	// boundary tests below and must not silently move scripted intervals here.
+	config.LowWaterThresholdCoins = 0
+	config.HighWaterThresholdCoins = 1_000_000_000
+	config.LowWaterFactorPPM = StrategyPPMScale
+	config.HighWaterFactorPPM = StrategyPPMScale
+	config.RechargeFactorPPM = StrategyPPMScale
+	config.JackpotMechanism1Enabled = false
+	config.JackpotMechanism2Enabled = false
+	config.DailyJackpotLimit = 1_000_000
+	return config
+}
+
+func strategyTestInput(price int64) StrategyInput {
+	return StrategyInput{GiftPriceCoins: price}
+}
+
+func TestLuckyGiftStrategyDeletesUnaffordableTierAndZeroBeforeRedraw(t *testing.T) {
+	config := strategyTestConfig()
+	random := &scriptedStrategyRandom{
+		t: t,
+		// 950000 selects 200x from the original 1,000,000 range. After deleting
+		// 200x+0x, 359999 selects 1000x; the last zero selects affordable 5x.
+		indexes: []int64{950_000, 359_999, 0},
+		bounds:  []int64{1_000_000, 360_000, 350_000},
+	}
+	decision, err := DecideLuckyGiftStrategy(config, StrategyState{PoolBalanceCoins: 800}, strategyTestInput(10), random)
+	if err != nil {
+		t.Fatal(err)
+	}
+	if decision.SelectedTier.ID != "5x" || decision.PayoutCoins != 50 || decision.PoolAfterCoins != 750 {
+		t.Fatalf("decision=%+v", decision)
+	}
+	if got, want := decision.Trace.OriginalTierID, "200x"; got != want {
+		t.Fatalf("original tier=%s want=%s", got, want)
+	}
+	if got, want := decision.Trace.RedrawTierIDs, []string{"1000x", "5x"}; !reflect.DeepEqual(got, want) {
+		t.Fatalf("redraws=%v want=%v", got, want)
+	}
+	wantRemoved := []StrategyRemovalTrace{
+		{TierID: "200x", Reason: StrategyReasonPoolInsufficient},
+		{TierID: "0x", Reason: StrategyRemovalPWRedrawZero},
+		{TierID: "1000x", Reason: StrategyReasonPoolInsufficient},
+	}
+	if !reflect.DeepEqual(decision.Trace.Removed, wantRemoved) {
+		t.Fatalf("removed=%+v want=%+v", decision.Trace.Removed, wantRemoved)
+	}
+}
+
+func TestLuckyGiftStrategyPWEqualityAndCandidateExhaustion(t *testing.T) {
+	t.Run("W equals P is payable", func(t *testing.T) {
+		config := strategyTestConfig()
+		decision, err := DecideLuckyGiftStrategy(config, StrategyState{PoolBalanceCoins: 2_000}, strategyTestInput(10), &scriptedStrategyRandom{t: t, indexes: []int64{950_000}, bounds: []int64{1_000_000}})
+		if err != nil {
+			t.Fatal(err)
+		}
+		if decision.SelectedTier.ID != "200x" || decision.PayoutCoins != 2_000 || decision.PoolAfterCoins != 0 {
+			t.Fatalf("P=W decision=%+v", decision)
+		}
+	})
+
+	t.Run("all positive tiers impossible falls back to zero", func(t *testing.T) {
+		config := strategyTestConfig()
+		random := &scriptedStrategyRandom{
+			t: t,
+			// Exhaust 1000x, 200x, 50x, then 5x. Zero is removed with the first
+			// failed P/W comparison, so no extra random call can hide exhaustion.
+			indexes: []int64{999_999, 350_000, 349_999, 0},
+			bounds:  []int64{1_000_000, 390_000, 350_000, 200_000},
+		}
+		decision, err := DecideLuckyGiftStrategy(config, StrategyState{PoolBalanceCoins: 49}, strategyTestInput(10), random)
+		if err != nil {
+			t.Fatal(err)
+		}
+		if decision.PayoutCoins != 0 || decision.SelectedTier.ID != "0x" || decision.Trace.FinalReason != StrategyReasonNoPayableTier {
+			t.Fatalf("exhausted decision=%+v", decision)
+		}
+		if decision.NextState.PoolBalanceCoins < 0 {
+			t.Fatalf("pool became negative: %d", decision.NextState.PoolBalanceCoins)
+		}
+	})
+}
+
+func TestLuckyGiftStrategyMissProtectionSixthDraw(t *testing.T) {
+	config := strategyTestConfig()
+	state := StrategyState{PoolBalanceCoins: 800, ConsecutiveZeroDraws: 5}
+	decision, err := DecideLuckyGiftStrategy(config, state, strategyTestInput(10), &scriptedStrategyRandom{t: t, indexes: []int64{0}, bounds: []int64{400_000}})
+	if err != nil {
+		t.Fatal(err)
+	}
+	if decision.SelectedTier.ID != "5x" || decision.PayoutCoins != 50 || decision.NextState.ConsecutiveZeroDraws != 0 {
+		t.Fatalf("protected decision=%+v", decision)
+	}
+	if len(decision.Trace.Removed) == 0 || decision.Trace.Removed[0].Reason != StrategyRemovalMissProtection {
+		t.Fatalf("zero exclusion not traced: %+v", decision.Trace.Removed)
+	}
+
+	// Protection cannot manufacture money: when even 5x exceeds P, the strategy
+	// returns zero and leaves an explicit blocked reason instead of overdrawing.
+	blocked, err := DecideLuckyGiftStrategy(config, StrategyState{PoolBalanceCoins: 49, ConsecutiveZeroDraws: 5}, strategyTestInput(10), &scriptedStrategyRandom{t: t})
+	if err != nil {
+		t.Fatal(err)
+	}
+	if blocked.PayoutCoins != 0 || blocked.Trace.FinalReason != StrategyReasonMissProtectionBlocked || blocked.NextState.PoolBalanceCoins != 49 {
+		t.Fatalf("blocked protection=%+v", blocked)
+	}
+}
+
+func TestLuckyGiftStrategyDynamicWeightBoundariesAndMultiplication(t *testing.T) {
+	config := strategyTestConfig()
+	config.LowWaterThresholdCoins = 1_000
+	config.HighWaterThresholdCoins = 2_000
+	config.LowWaterFactorPPM = 700_000
+	config.HighWaterFactorPPM = 1_300_000
+	config.RechargeFactorPPM = 1_100_000
+	config.JackpotMechanism1Enabled = false
+	config.JackpotMechanism2Enabled = false
+	tests := []struct {
+		name            string
+		pool            int64
+		rechargeAge     int64
+		hasRecharge     bool
+		want5x          int64
+		wantFactorNames []string
+	}{
+		{name: "low below threshold", pool: 999, want5x: 140_000, wantFactorNames: []string{"low_water"}},
+		{name: "low equality is middle", pool: 1_000, want5x: 200_000, wantFactorNames: []string{"identity"}},
+		{name: "high equality is middle", pool: 2_000, want5x: 200_000, wantFactorNames: []string{"identity"}},
+		{name: "high above threshold", pool: 2_001, want5x: 260_000, wantFactorNames: []string{"high_water"}},
+		{name: "recharge starts inclusive and multiplies low", pool: 999, hasRecharge: true, rechargeAge: 0, want5x: 154_000, wantFactorNames: []string{"low_water", "recent_recharge"}},
+		{name: "recharge end minus one inclusive", pool: 1_500, hasRecharge: true, rechargeAge: 299_999, want5x: 220_000, wantFactorNames: []string{"recent_recharge"}},
+		{name: "recharge end exclusive", pool: 1_500, hasRecharge: true, rechargeAge: 300_000, want5x: 200_000, wantFactorNames: []string{"identity"}},
+	}
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			input := strategyTestInput(10)
+			input.NowMS = 1_000_000
+			input.HasRechargeFact = tt.hasRecharge
+			input.LastRechargeAtMS = input.NowMS - tt.rechargeAge
+			_, traces, err := PreviewLuckyGiftStrategyWeights(config, StrategyState{PoolBalanceCoins: tt.pool}, input)
+			if err != nil {
+				t.Fatal(err)
+			}
+			trace := findWeightTrace(t, traces, "5x")
+			if trace.AdjustedWeightPPM != tt.want5x {
+				t.Fatalf("5x adjusted=%d want=%d full=%+v", trace.AdjustedWeightPPM, tt.want5x, trace)
+			}
+			factorNames := make([]string, 0, len(trace.Factors))
+			for _, factor := range trace.Factors {
+				factorNames = append(factorNames, factor.Name)
+			}
+			if !reflect.DeepEqual(factorNames, tt.wantFactorNames) {
+				t.Fatalf("factor names=%v want=%v", factorNames, tt.wantFactorNames)
+			}
+			var total int64
+			for _, item := range traces {
+				total += item.AdjustedWeightPPM
+			}
+			if total != StrategyPPMScale {
+				t.Fatalf("weights sum=%d", total)
+			}
+		})
+	}
+}
+
+func TestLuckyGiftStrategyJackpotMechanismOneRequiresAllNonZeroWindows(t *testing.T) {
+	config := strategyTestConfig()
+	config.JackpotMechanism1Enabled = true
+	config.DailyJackpotLimit = 5
+	base := StrategyState{
+		PoolBalanceCoins: 10_000,
+		GlobalRTP:        StrategyRTP{WagerCoins: 100, PayoutCoins: 98},
+		UserDayRTP:       StrategyRTP{WagerCoins: 100, PayoutCoins: 96},
+		User72HourRTP:    StrategyRTP{WagerCoins: 100, PayoutCoins: 96},
+	}
+	tests := []struct {
+		name      string
+		mutate    func(*StrategyState)
+		wantPrize bool
+	}{
+		{name: "all inclusive boundaries pass", wantPrize: true},
+		{name: "global above 98", mutate: func(s *StrategyState) { s.GlobalRTP.PayoutCoins = 99 }},
+		{name: "day above 96", mutate: func(s *StrategyState) { s.UserDayRTP.PayoutCoins = 97 }},
+		{name: "72h above 96", mutate: func(s *StrategyState) { s.User72HourRTP.PayoutCoins = 97 }},
+		{name: "global denominator zero", mutate: func(s *StrategyState) { s.GlobalRTP = StrategyRTP{} }},
+		{name: "day denominator zero", mutate: func(s *StrategyState) { s.UserDayRTP = StrategyRTP{} }},
+		{name: "72h denominator zero", mutate: func(s *StrategyState) { s.User72HourRTP = StrategyRTP{} }},
+	}
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			state := base
+			if tt.mutate != nil {
+				tt.mutate(&state)
+			}
+			decision, err := DecideLuckyGiftStrategy(config, state, strategyTestInput(10), NewSeededStrategyRandom(7))
+			if err != nil {
+				t.Fatal(err)
+			}
+			got := decision.JackpotMechanism == StrategyJackpotMechanismRTPCompensation
+			if got != tt.wantPrize {
+				t.Fatalf("mechanism1=%v want=%v trace=%+v", got, tt.wantPrize, decision.Trace)
+			}
+		})
+	}
+}
+
+func TestLuckyGiftStrategyMilestoneTokenRetainedThenConsumed(t *testing.T) {
+	if got := MilestoneTokensEarned(49, 101, 50); got != 2 {
+		t.Fatalf("crossed tokens=%d want=2", got)
+	}
+	config := strategyTestConfig()
+	config.JackpotMechanism2Enabled = true
+	config.DailyJackpotLimit = 5
+	config.MilestoneSpendCoins = 50
+	state := StrategyState{PoolBalanceCoins: 49, PendingMilestoneTokens: 1}
+	blocked, err := DecideLuckyGiftStrategy(config, state, strategyTestInput(10), NewSeededStrategyRandom(11))
+	if err != nil {
+		t.Fatal(err)
+	}
+	if blocked.ConsumedMilestoneToken || blocked.NextState.PendingMilestoneTokens != 1 || !blocked.Trace.MilestoneTokenRetained {
+		t.Fatalf("blocked token decision=%+v", blocked)
+	}
+	if len(blocked.Trace.Removed) < 3 {
+		t.Fatalf("blocked jackpot removals=%+v want all 200/500/1000 tiers", blocked.Trace.Removed)
+	}
+	for _, removed := range blocked.Trace.Removed[:3] {
+		if removed.Reason != StrategyReasonPoolInsufficient {
+			t.Fatalf("blocked jackpot removal=%+v", removed)
+		}
+	}
+
+	state = blocked.NextState
+	state.PoolBalanceCoins = 10_000
+	paid, err := DecideLuckyGiftStrategy(config, state, strategyTestInput(10), NewSeededStrategyRandom(12))
+	if err != nil {
+		t.Fatal(err)
+	}
+	if !paid.ConsumedMilestoneToken || paid.NextState.PendingMilestoneTokens != 0 || !paid.Jackpot || paid.PayoutCoins <= 0 {
+		t.Fatalf("consumed token decision=%+v", paid)
+	}
+
+	// Crossing happens during finalize, after this draw has already been selected.
+	// The token must therefore be persisted for the next request, not consumed now.
+	crossingState := StrategyState{PoolBalanceCoins: 1_000, UserDaySpendCoins: 40}
+	crossing, err := DecideLuckyGiftStrategy(config, crossingState, strategyTestInput(10), &scriptedStrategyRandom{t: t, indexes: []int64{0}, bounds: []int64{1_000_000}})
+	if err != nil {
+		t.Fatal(err)
+	}
+	if crossing.ConsumedMilestoneToken || crossing.NextState.PendingMilestoneTokens != 1 || crossing.Trace.MilestoneTokensEarned != 1 {
+		t.Fatalf("crossing decision=%+v", crossing)
+	}
+}
+
+func TestLuckyGiftStrategyDailyJackpotLimitAlsoConstrainsBaseDraw(t *testing.T) {
+	config := strategyTestConfig()
+	config.JackpotMechanism2Enabled = true
+	config.DailyJackpotLimit = 5
+	state := StrategyState{PoolBalanceCoins: 20_000, PendingMilestoneTokens: 1, UserDailyJackpotWins: 5}
+	// Milestone is blocked first; ordinary draw then selects 200x, removes it for
+	// the same hard daily limit, removes zero, and redraws an allowed 5x.
+	random := &scriptedStrategyRandom{t: t, indexes: []int64{950_000, 600_000}, bounds: []int64{1_000_000, 960_000}}
+	decision, err := DecideLuckyGiftStrategy(config, state, strategyTestInput(10), random)
+	if err != nil {
+		t.Fatal(err)
+	}
+	if decision.Jackpot || decision.SelectedTier.ID != "5x" || decision.NextState.PendingMilestoneTokens != 1 || decision.NextState.UserDailyJackpotWins != 5 {
+		t.Fatalf("daily-limit decision=%+v", decision)
+	}
+	if decision.Trace.Draws[0].RemovedReason != StrategyReasonDailyJackpotLimit {
+		t.Fatalf("daily-limit removal=%+v", decision.Trace.Draws)
+	}
+}
+
+func TestLuckyGiftStrategySixRiskCapacitiesAreHardInclusiveBounds(t *testing.T) {
+	config := strategyTestConfig()
+	config.Tiers = []StrategyTier{
+		{ID: "0x", MultiplierPPM: 0, BaseWeightPPM: 0, Enabled: true},
+		{ID: "5x", MultiplierPPM: 5_000_000, BaseWeightPPM: StrategyPPMScale, Enabled: true},
+	}
+	setters := []struct {
+		name string
+		set  func(*StrategyRiskCapacity, int64)
+	}{
+		{name: "single draw", set: func(c *StrategyRiskCapacity, v int64) { c.SingleDrawCoins = v }},
+		{name: "user hour", set: func(c *StrategyRiskCapacity, v int64) { c.UserHourCoins = v }},
+		{name: "user day", set: func(c *StrategyRiskCapacity, v int64) { c.UserDayCoins = v }},
+		{name: "device day", set: func(c *StrategyRiskCapacity, v int64) { c.DeviceDayCoins = v }},
+		{name: "room hour", set: func(c *StrategyRiskCapacity, v int64) { c.RoomHourCoins = v }},
+		{name: "anchor day", set: func(c *StrategyRiskCapacity, v int64) { c.AnchorDayCoins = v }},
+	}
+	for _, setter := range setters {
+		t.Run(setter.name, func(t *testing.T) {
+			capacity := StrategyRiskCapacity{Enabled: true, SingleDrawCoins: 1_000, UserHourCoins: 1_000, UserDayCoins: 1_000, DeviceDayCoins: 1_000, RoomHourCoins: 1_000, AnchorDayCoins: 1_000}
+			setter.set(&capacity, 50)
+			input := strategyTestInput(10)
+			input.RiskCapacity = capacity
+			allowed, err := DecideLuckyGiftStrategy(config, StrategyState{PoolBalanceCoins: 50}, input, NewSeededStrategyRandom(1))
+			if err != nil {
+				t.Fatal(err)
+			}
+			if allowed.PayoutCoins != 50 || allowed.PoolAfterCoins != 0 {
+				t.Fatalf("boundary must pass: %+v", allowed)
+			}
+			setter.set(&capacity, 49)
+			input.RiskCapacity = capacity
+			blocked, err := DecideLuckyGiftStrategy(config, StrategyState{PoolBalanceCoins: 50}, input, NewSeededStrategyRandom(1))
+			if err != nil {
+				t.Fatal(err)
+			}
+			if blocked.PayoutCoins != 0 || blocked.Trace.FinalReason != StrategyReasonNoPayableTier {
+				t.Fatalf("below boundary must block: %+v", blocked)
+			}
+			if len(blocked.Trace.Removed) != 1 || blocked.Trace.Removed[0].TierID != "5x" || blocked.Trace.Removed[0].Reason != StrategyReasonRiskCapacity {
+				t.Fatalf("risk retry must not remove zero: %+v", blocked.Trace.Removed)
+			}
+		})
+	}
+}
+
+func TestLuckyGiftStrategyRechargeStagesAndFundConservation(t *testing.T) {
+	config := DefaultLuckyGiftStrategyConfig()
+	stageCases := []struct {
+		seven, thirty int64
+		want          string
+	}{
+		{seven: 0, thirty: 0, want: StageNovice},
+		{seven: 0, thirty: 1, want: StageNormal},
+		{seven: 1, thirty: 1, want: StageAdvanced},
+	}
+	for _, tt := range stageCases {
+		if got := SelectLuckyGiftRechargeStage(config, tt.seven, tt.thirty); got != tt.want {
+			t.Fatalf("stage(%d,%d)=%s want=%s", tt.seven, tt.thirty, got, tt.want)
+		}
+	}
+	split, err := SplitLuckyGiftStrategyFunds(100, config)
+	if err != nil {
+		t.Fatal(err)
+	}
+	if split != (StrategyFundSplit{PublicPoolCoins: 98, ProfitPoolCoins: 1, AnchorReturnCoins: 1}) {
+		t.Fatalf("split=%+v", split)
+	}
+	if split.PublicPoolCoins+split.ProfitPoolCoins+split.AnchorReturnCoins != 100 {
+		t.Fatal("fund split did not conserve money")
+	}
+	small, err := SplitLuckyGiftStrategyFunds(10, config)
+	if err != nil {
+		t.Fatal(err)
+	}
+	if small != (StrategyFundSplit{PublicPoolCoins: 9, ProfitPoolCoins: 1, AnchorReturnCoins: 0}) {
+		t.Fatalf("small split=%+v want public floor with residue in profit", small)
+	}
+	if initial := InitialLuckyGiftStrategyState(config); initial.PoolBalanceCoins != config.ColdStartPoolCoins || initial.PoolBalanceCoins < 0 {
+		t.Fatalf("initial=%+v", initial)
+	}
+}
+
+func TestDefaultLuckyGiftStrategyNominalEVIsExactlyNinetyEightPercent(t *testing.T) {
+	config := DefaultLuckyGiftStrategyConfig()
+	var weightedMultiplierMicros int64
+	for _, tier := range config.Tiers {
+		weightedMultiplierMicros += tier.BaseWeightPPM * tier.MultiplierPPM / StrategyPPMScale
+	}
+	if weightedMultiplierMicros != 980_000 {
+		t.Fatalf("default nominal EV=%dppm want=980000ppm", weightedMultiplierMicros)
+	}
+	for _, tier := range config.Tiers {
+		if tier.Jackpot && tier.BaseWeightPPM != 0 {
+			t.Fatalf("default jackpot tier %s leaked into ordinary probability", tier.ID)
+		}
+	}
+}
+
+func TestLuckyGiftStrategyCombinationPriority(t *testing.T) {
+	config := strategyTestConfig()
+	config.JackpotMechanism1Enabled = true
+	config.JackpotMechanism2Enabled = true
+	config.DailyJackpotLimit = 5
+	state := StrategyState{
+		PoolBalanceCoins: 10_000, ConsecutiveZeroDraws: 5, PendingMilestoneTokens: 1,
+		GlobalRTP:     StrategyRTP{WagerCoins: 100, PayoutCoins: 98},
+		UserDayRTP:    StrategyRTP{WagerCoins: 100, PayoutCoins: 96},
+		User72HourRTP: StrategyRTP{WagerCoins: 100, PayoutCoins: 96},
+	}
+	decision, err := DecideLuckyGiftStrategy(config, state, strategyTestInput(10), NewSeededStrategyRandom(8))
+	if err != nil {
+		t.Fatal(err)
+	}
+	if decision.JackpotMechanism != StrategyJackpotMechanismMilestone || !decision.ConsumedMilestoneToken {
+		t.Fatalf("milestone must outrank mechanism1/miss protection: %+v", decision)
+	}
+}
+
+func findWeightTrace(t *testing.T, traces []StrategyWeightTrace, tierID string) StrategyWeightTrace {
+	t.Helper()
+	for _, trace := range traces {
+		if trace.TierID == tierID {
+			return trace
+		}
+	}
+	t.Fatalf("weight trace %s not found", tierID)
+	return StrategyWeightTrace{}
+}
--- a/services/lucky-gift-service/internal/service/luckygift/config.go
+++ b/services/lucky-gift-service/internal/service/luckygift/config.go
@ -13,40 +13,43 @@ const (
 	highTierMultiplierPPM int64 = 10_000_000
 )

-// DefaultRuleConfig 返回 v2 配置草稿。草稿默认 disabled，只有后台发布后才写入不可变版本表。
+// DefaultRuleConfig 返回 dynamic_v3 配置草稿。金额型风控上限和 50 美元等值金币门槛没有跨 App 通用换算，
+// 因而保留为 0 且草稿默认 disabled；运营显式补齐这些值并启用后，才允许发布可运行版本。
 func DefaultRuleConfig(appCode, poolID string) domain.RuleConfig {
 	poolID = normalizePoolID(poolID)
 	return domain.RuleConfig{
-		AppCode:               appCode,
-		PoolID:                poolID,
-		Enabled:               false,
-		TargetRTPPPM:          950_000,
-		PoolRatePPM:           960_000,
-		SettlementWindowWager: 1_000_000,
-		ControlBandPPM:        10_000,
-		GiftPriceReference:    100,
+		AppCode:                   appCode,
+		PoolID:                    poolID,
+		StrategyVersion:           domain.StrategyDynamicV3,
+		Enabled:                   false,
+		TargetRTPPPM:              980_000,
+		PoolRatePPM:               980_000,
+		ProfitRatePPM:             10_000,
+		AnchorRatePPM:             10_000,
+		SettlementWindowWager:     1_000_000,
+		ControlBandPPM:            30_000,
+		GiftPriceReference:        100,
+		InitialPoolCoins:          1_000_000,
+		LossStreakGuarantee:       5,
+		LowWatermarkCoins:         10_000_000,
+		LowWaterNonzeroFactorPPM:  700_000,
+		HighWatermarkCoins:        20_000_000,
+		HighWaterNonzeroFactorPPM: 1_300_000,
+		RechargeBoostWindowMS:     300_000,
+		RechargeBoostFactorPPM:    1_100_000,
+		JackpotMultiplierPPMs:     []int64{200_000_000, 500_000_000, 1_000_000_000},
+		JackpotGlobalRTPMaxPPM:    980_000,
+		JackpotUserDayRTPMaxPPM:   960_000,
+		JackpotUser72hRTPMaxPPM:   960_000,
+		MaxJackpotHitsPerUserDay:  5,
 		// 用户阶段按累计金币流水折算的等价抽数推进；后台仍看到“抽数”，运行侧不会再被不同价格礼物误导。
 		NoviceMaxEquivalentDraws: 2_000,
 		NormalMaxEquivalentDraws: 20_000,
 		Stages: []domain.RuleStage{
-			defaultRuleStage(domain.StageNovice, []ruleTierSeed{
-				{id: "novice_none", multiplierPPM: 0, weightPPM: 100_000},
-				{id: "novice_0_5x", multiplierPPM: 500_000, weightPPM: 200_000},
-				{id: "novice_1x", multiplierPPM: 1_000_000, weightPPM: 550_000},
-				{id: "novice_2x", multiplierPPM: 2_000_000, weightPPM: 150_000},
-			}),
-			defaultRuleStage(domain.StageNormal, []ruleTierSeed{
-				{id: "normal_none", multiplierPPM: 0, weightPPM: 100_000},
-				{id: "normal_0_5x", multiplierPPM: 500_000, weightPPM: 200_000},
-				{id: "normal_1x", multiplierPPM: 1_000_000, weightPPM: 550_000},
-				{id: "normal_2x", multiplierPPM: 2_000_000, weightPPM: 150_000},
-			}),
-			defaultRuleStage(domain.StageAdvanced, []ruleTierSeed{
-				{id: "advanced_none", multiplierPPM: 0, weightPPM: 270_000},
-				{id: "advanced_1x", multiplierPPM: 1_000_000, weightPPM: 600_000},
-				{id: "advanced_2x", multiplierPPM: 2_000_000, weightPPM: 100_000},
-				{id: "advanced_5x", multiplierPPM: 5_000_000, weightPPM: 30_000},
-			}),
+			defaultRuleStage(domain.StageNovice, 0, 0, defaultSafeTierSeeds(domain.StageNovice)),
+			// 产品尚未给出具体充值金额时，用 (0,1) 与 (1,1) 保证三个阶段可执行且无重叠；运营可按 App 金币口径上调。
+			defaultRuleStage(domain.StageNormal, 0, 1, defaultSafeTierSeeds(domain.StageNormal)),
+			defaultRuleStage(domain.StageAdvanced, 1, 1, defaultSafeTierSeeds(domain.StageAdvanced)),
 		},
 	}
 }
@ -57,8 +60,24 @@ type ruleTierSeed struct {
 	weightPPM     int64
 }

-func defaultRuleStage(stage string, tiers []ruleTierSeed) domain.RuleStage {
-	out := domain.RuleStage{Stage: stage, Tiers: make([]domain.RuleTier, 0, len(tiers))}
+// defaultSafeTierSeeds 保留明确的 0x 和少量 0.5x 小奖，并让每个阶段的静态期望精确为 98%。
+// 200x/500x/1000x 只登记为 jackpot 倍率，不在缺少产品概率时照搬图片示例塞进基础 tier。
+func defaultSafeTierSeeds(stage string) []ruleTierSeed {
+	return []ruleTierSeed{
+		{id: stage + "_none", multiplierPPM: 0, weightPPM: 50_000},
+		{id: stage + "_0_5x", multiplierPPM: 500_000, weightPPM: 40_000},
+		{id: stage + "_1x", multiplierPPM: 1_000_000, weightPPM: 860_000},
+		{id: stage + "_2x", multiplierPPM: 2_000_000, weightPPM: 50_000},
+	}
+}
+
+func defaultRuleStage(stage string, minRecharge7DCoins, minRecharge30DCoins int64, tiers []ruleTierSeed) domain.RuleStage {
+	out := domain.RuleStage{
+		Stage:               stage,
+		MinRecharge7DCoins:  minRecharge7DCoins,
+		MinRecharge30DCoins: minRecharge30DCoins,
+		Tiers:               make([]domain.RuleTier, 0, len(tiers)),
+	}
 	for _, tier := range tiers {
 		out.Tiers = append(out.Tiers, domain.RuleTier{
 			Stage:         stage,
@ -74,6 +93,11 @@ func defaultRuleStage(stage string, tiers []ruleTierSeed) domain.RuleStage {

 func normalizeRuleConfig(config domain.RuleConfig) domain.RuleConfig {
 	config.PoolID = normalizePoolID(config.PoolID)
+	config.StrategyVersion = strings.ToLower(strings.TrimSpace(config.StrategyVersion))
+	if config.StrategyVersion == "" {
+		// 空值只可能来自升级前的客户端或旧持久行；归一为 fixed_v2 才不会让新动态校验改变历史发布语义。
+		config.StrategyVersion = domain.StrategyFixedV2
+	}
 	for stageIndex, stage := range config.Stages {
 		stage.Stage = strings.TrimSpace(stage.Stage)
 		for tierIndex, tier := range stage.Tiers {
@ -111,6 +135,13 @@ func validateRuleConfig(config domain.RuleConfig) error {
 	if config.NoviceMaxEquivalentDraws < 0 || config.NormalMaxEquivalentDraws < config.NoviceMaxEquivalentDraws {
 		return xerr.New(xerr.InvalidArgument, "equivalent draw stage thresholds are invalid")
 	}
+	strategyVersion := strings.ToLower(strings.TrimSpace(config.StrategyVersion))
+	if strategyVersion == "" {
+		strategyVersion = domain.StrategyFixedV2
+	}
+	if strategyVersion != domain.StrategyFixedV2 && strategyVersion != domain.StrategyDynamicV3 {
+		return xerr.New(xerr.InvalidArgument, fmt.Sprintf("unsupported lucky gift strategy version: %s", config.StrategyVersion))
+	}
 	stageMap := make(map[string]domain.RuleStage, len(config.Stages))
 	for _, stage := range config.Stages {
 		if !validRuleStage(stage.Stage) {
@ -133,6 +164,121 @@ func validateRuleConfig(config domain.RuleConfig) error {
 			return err
 		}
 	}
+	if strategyVersion == domain.StrategyDynamicV3 {
+		if err := validateDynamicRuleConfig(config, stageMap); err != nil {
+			return err
+		}
+	}
+	return nil
+}
+
+// validateDynamicRuleConfig 只约束 dynamic_v3；fixed_v2 的历史不可变版本即使没有这些字段也必须可以继续读取和重发。
+func validateDynamicRuleConfig(config domain.RuleConfig, stages map[string]domain.RuleStage) error {
+	if config.ProfitRatePPM < 0 || config.AnchorRatePPM < 0 || config.PoolRatePPM+config.ProfitRatePPM+config.AnchorRatePPM != ppmScale {
+		return xerr.New(xerr.InvalidArgument, "dynamic_v3 pool, profit and anchor rates must be non-negative and sum to 100%")
+	}
+	if config.InitialPoolCoins <= 0 {
+		return xerr.New(xerr.InvalidArgument, "dynamic_v3 initial pool coins must be positive")
+	}
+	if config.LossStreakGuarantee <= 0 {
+		return xerr.New(xerr.InvalidArgument, "dynamic_v3 loss streak guarantee must be positive")
+	}
+	if config.LowWatermarkCoins <= 0 || config.HighWatermarkCoins <= config.LowWatermarkCoins {
+		return xerr.New(xerr.InvalidArgument, "dynamic_v3 watermarks must be positive and high watermark must exceed low watermark")
+	}
+	if config.LowWaterNonzeroFactorPPM <= 0 || config.LowWaterNonzeroFactorPPM >= ppmScale {
+		return xerr.New(xerr.InvalidArgument, "dynamic_v3 low-water nonzero factor must be between 0% and 100%")
+	}
+	if config.HighWaterNonzeroFactorPPM <= ppmScale {
+		return xerr.New(xerr.InvalidArgument, "dynamic_v3 high-water nonzero factor must exceed 100%")
+	}
+	if config.RechargeBoostWindowMS <= 0 || config.RechargeBoostFactorPPM <= ppmScale {
+		return xerr.New(xerr.InvalidArgument, "dynamic_v3 recharge boost window must be positive and factor must exceed 100%")
+	}
+	if err := validateJackpotMultipliers(config.JackpotMultiplierPPMs); err != nil {
+		return err
+	}
+	if config.JackpotGlobalRTPMaxPPM <= 0 || config.JackpotGlobalRTPMaxPPM > ppmScale ||
+		config.JackpotUserDayRTPMaxPPM <= 0 || config.JackpotUserDayRTPMaxPPM > config.JackpotGlobalRTPMaxPPM ||
+		config.JackpotUser72hRTPMaxPPM <= 0 || config.JackpotUser72hRTPMaxPPM > config.JackpotGlobalRTPMaxPPM {
+		return xerr.New(xerr.InvalidArgument, "dynamic_v3 jackpot RTP limits must be positive; user limits cannot exceed the global limit")
+	}
+	if config.MaxJackpotHitsPerUserDay <= 0 {
+		return xerr.New(xerr.InvalidArgument, "dynamic_v3 daily jackpot hit cap must be positive")
+	}
+	if config.JackpotSpendThresholdCoins < 0 {
+		return xerr.New(xerr.InvalidArgument, "dynamic_v3 jackpot spend threshold coins cannot be negative")
+	}
+	if err := validateDynamicPayoutCaps(config, false); err != nil {
+		return err
+	}
+	if err := validateDynamicStageThresholds(stages); err != nil {
+		return err
+	}
+	if !config.Enabled {
+		// disabled 草稿允许金额口径仍为 0；启用前必须由各 App 按自身金币汇率和风控预算显式补齐。
+		return nil
+	}
+	if config.JackpotSpendThresholdCoins <= 0 {
+		return xerr.New(xerr.InvalidArgument, "dynamic_v3 jackpot spend threshold coins must be configured to the App's USD 50 equivalent coin amount before enabling")
+	}
+	return validateDynamicPayoutCaps(config, true)
+}
+
+func validateJackpotMultipliers(multiplierPPMs []int64) error {
+	if len(multiplierPPMs) == 0 {
+		return xerr.New(xerr.InvalidArgument, "dynamic_v3 must configure at least one jackpot multiplier")
+	}
+	var previous int64
+	for _, multiplierPPM := range multiplierPPMs {
+		if multiplierPPM <= ppmScale || multiplierPPM <= previous {
+			return xerr.New(xerr.InvalidArgument, "dynamic_v3 jackpot multipliers must exceed 1x and be strictly increasing")
+		}
+		previous = multiplierPPM
+	}
+	return nil
+}
+
+func validateDynamicStageThresholds(stages map[string]domain.RuleStage) error {
+	novice := stages[domain.StageNovice]
+	normal := stages[domain.StageNormal]
+	advanced := stages[domain.StageAdvanced]
+	if novice.MinRecharge7DCoins != 0 || novice.MinRecharge30DCoins != 0 {
+		return xerr.New(xerr.InvalidArgument, "dynamic_v3 novice recharge thresholds must be 0/0")
+	}
+	if normal.MinRecharge7DCoins < 0 || normal.MinRecharge30DCoins < 0 || advanced.MinRecharge7DCoins < 0 || advanced.MinRecharge30DCoins < 0 {
+		return xerr.New(xerr.InvalidArgument, "dynamic_v3 recharge thresholds cannot be negative")
+	}
+	if normal.MinRecharge7DCoins == 0 && normal.MinRecharge30DCoins == 0 {
+		return xerr.New(xerr.InvalidArgument, "dynamic_v3 normal stage must exceed novice in at least one recharge threshold")
+	}
+	if advanced.MinRecharge7DCoins < normal.MinRecharge7DCoins || advanced.MinRecharge30DCoins < normal.MinRecharge30DCoins ||
+		(advanced.MinRecharge7DCoins == normal.MinRecharge7DCoins && advanced.MinRecharge30DCoins == normal.MinRecharge30DCoins) {
+		return xerr.New(xerr.InvalidArgument, "dynamic_v3 advanced recharge thresholds must be component-wise monotonic and exceed normal in at least one dimension")
+	}
+	return nil
+}
+
+func validateDynamicPayoutCaps(config domain.RuleConfig, requirePositive bool) error {
+	caps := []struct {
+		name  string
+		value int64
+	}{
+		{name: "max_single_payout", value: config.MaxSinglePayout},
+		{name: "user_hourly_payout_cap", value: config.UserHourlyPayoutCap},
+		{name: "user_daily_payout_cap", value: config.UserDailyPayoutCap},
+		{name: "device_daily_payout_cap", value: config.DeviceDailyPayoutCap},
+		{name: "room_hourly_payout_cap", value: config.RoomHourlyPayoutCap},
+		{name: "anchor_daily_payout_cap", value: config.AnchorDailyPayoutCap},
+	}
+	for _, cap := range caps {
+		if cap.value < 0 || (requirePositive && cap.value == 0) {
+			if !requirePositive {
+				return xerr.New(xerr.InvalidArgument, fmt.Sprintf("dynamic_v3 %s cannot be negative", cap.name))
+			}
+			return xerr.New(xerr.InvalidArgument, fmt.Sprintf("dynamic_v3 %s must be positive before enabling", cap.name))
+		}
+	}
 	return nil
 }

--- a/services/lucky-gift-service/internal/service/luckygift/config_test.go
+++ b/services/lucky-gift-service/internal/service/luckygift/config_test.go
@ -0,0 +1,116 @@
+package luckygift
+
+import (
+	"strings"
+	"testing"
+
+	domain "hyapp/services/lucky-gift-service/internal/domain/luckygift"
+)
+
+func TestDefaultRuleConfigUsesSafeDynamicV3Draft(t *testing.T) {
+	config := DefaultRuleConfig("lalu", "lucky")
+	if config.StrategyVersion != domain.StrategyDynamicV3 || config.Enabled {
+		t.Fatalf("default strategy=%q enabled=%v, want disabled dynamic_v3 draft", config.StrategyVersion, config.Enabled)
+	}
+	if config.TargetRTPPPM != 980_000 || config.PoolRatePPM != 980_000 || config.ProfitRatePPM != 10_000 || config.AnchorRatePPM != 10_000 {
+		t.Fatalf("default RTP/fund split mismatch: %+v", config)
+	}
+	if config.ControlBandPPM != 30_000 || config.InitialPoolCoins != 1_000_000 || config.LossStreakGuarantee != 5 {
+		t.Fatalf("default control values mismatch: %+v", config)
+	}
+	if config.LowWatermarkCoins != 10_000_000 || config.LowWaterNonzeroFactorPPM != 700_000 ||
+		config.HighWatermarkCoins != 20_000_000 || config.HighWaterNonzeroFactorPPM != 1_300_000 {
+		t.Fatalf("default water controls mismatch: %+v", config)
+	}
+	if config.RechargeBoostWindowMS != 300_000 || config.RechargeBoostFactorPPM != 1_100_000 {
+		t.Fatalf("default recharge boost mismatch: %+v", config)
+	}
+	if config.JackpotGlobalRTPMaxPPM != 980_000 || config.JackpotUserDayRTPMaxPPM != 960_000 ||
+		config.JackpotUser72hRTPMaxPPM != 960_000 || config.MaxJackpotHitsPerUserDay != 5 {
+		t.Fatalf("default jackpot controls mismatch: %+v", config)
+	}
+	if config.JackpotSpendThresholdCoins != 0 || config.MaxSinglePayout != 0 || config.AnchorDailyPayoutCap != 0 {
+		t.Fatalf("App-specific monetary limits must stay unset in disabled draft: %+v", config)
+	}
+
+	wantThresholds := [][2]int64{{0, 0}, {0, 1}, {1, 1}}
+	for index, stage := range config.Stages {
+		if got := [2]int64{stage.MinRecharge7DCoins, stage.MinRecharge30DCoins}; got != wantThresholds[index] {
+			t.Fatalf("stage %s thresholds=%v, want %v", stage.Stage, got, wantThresholds[index])
+		}
+		var expectedRTPPPM int64
+		for _, tier := range stage.Tiers {
+			if tier.Enabled {
+				expectedRTPPPM += tier.MultiplierPPM * tier.BaseWeightPPM / ppmScale
+			}
+		}
+		if expectedRTPPPM != 980_000 {
+			t.Fatalf("stage %s static expected RTP=%d, want safe 980000", stage.Stage, expectedRTPPPM)
+		}
+	}
+	if err := validateRuleConfig(config); err != nil {
+		t.Fatalf("disabled dynamic_v3 draft should validate before App-specific monetary limits are known: %v", err)
+	}
+}
+
+func TestValidateDynamicV3RequiresExplicitMonetaryRiskLimitsWhenEnabled(t *testing.T) {
+	config := DefaultRuleConfig("lalu", "lucky")
+	config.Enabled = true
+	if err := validateRuleConfig(config); err == nil || !strings.Contains(err.Error(), "USD 50 equivalent") {
+		t.Fatalf("enabled draft error=%v, want explicit USD 50 equivalent coin threshold guidance", err)
+	}
+
+	config.JackpotSpendThresholdCoins = 5_000
+	config.MaxSinglePayout = 10_000
+	config.UserHourlyPayoutCap = 20_000
+	config.UserDailyPayoutCap = 30_000
+	config.DeviceDailyPayoutCap = 40_000
+	config.RoomHourlyPayoutCap = 50_000
+	config.AnchorDailyPayoutCap = 60_000
+	if err := validateRuleConfig(config); err != nil {
+		t.Fatalf("fully configured dynamic_v3 should validate: %v", err)
+	}
+
+	config.RoomHourlyPayoutCap = 0
+	if err := validateRuleConfig(config); err == nil || !strings.Contains(err.Error(), "room_hourly_payout_cap") {
+		t.Fatalf("zero six-dimensional cap error=%v, want the missing cap name", err)
+	}
+}
+
+func TestValidateDynamicV3RechargeStagesAreStrictlyMonotonic(t *testing.T) {
+	config := DefaultRuleConfig("lalu", "lucky")
+	config.Stages[2].MinRecharge7DCoins = config.Stages[1].MinRecharge7DCoins
+	config.Stages[2].MinRecharge30DCoins = config.Stages[1].MinRecharge30DCoins
+	if err := validateRuleConfig(config); err == nil || !strings.Contains(err.Error(), "exceed normal") {
+		t.Fatalf("equal normal/advanced thresholds error=%v, want strict stage separation", err)
+	}
+}
+
+func TestValidateRuleConfigKeepsLegacyFixedV2Compatible(t *testing.T) {
+	config := DefaultRuleConfig("lalu", "lucky")
+	config.StrategyVersion = ""
+	config.Enabled = true
+	// 升级前请求没有任何 dynamic_v3 字段；空 strategy_version 必须按 fixed_v2 解释，不能要求 50 美元门槛或六维 cap。
+	config.ProfitRatePPM = 0
+	config.AnchorRatePPM = 0
+	config.InitialPoolCoins = 0
+	config.LossStreakGuarantee = 0
+	config.LowWatermarkCoins = 0
+	config.LowWaterNonzeroFactorPPM = 0
+	config.HighWatermarkCoins = 0
+	config.HighWaterNonzeroFactorPPM = 0
+	config.RechargeBoostWindowMS = 0
+	config.RechargeBoostFactorPPM = 0
+	config.JackpotMultiplierPPMs = nil
+	config.JackpotGlobalRTPMaxPPM = 0
+	config.JackpotUserDayRTPMaxPPM = 0
+	config.JackpotUser72hRTPMaxPPM = 0
+	config.MaxJackpotHitsPerUserDay = 0
+	if err := validateRuleConfig(config); err != nil {
+		t.Fatalf("legacy fixed_v2 config was broken by dynamic validation: %v", err)
+	}
+	normalized := normalizeRuleConfig(config)
+	if normalized.StrategyVersion != domain.StrategyFixedV2 {
+		t.Fatalf("legacy empty strategy normalized to %q, want fixed_v2", normalized.StrategyVersion)
+	}
+}
--- a/services/lucky-gift-service/internal/service/luckygift/gift_limits_test.go
+++ b/services/lucky-gift-service/internal/service/luckygift/gift_limits_test.go
@ -43,6 +43,51 @@ func TestNormalizeDrawCommandRejectsOversizedInternalGiftWork(t *testing.T) {
 	if _, err := svc.normalizeDrawCommand(oversizedID); err == nil {
 		t.Fatal("command_id above 128 bytes was accepted")
 	}
+	normalized, err := svc.normalizeDrawCommand(base)
+	if err != nil {
+		t.Fatalf("normalize valid command: %v", err)
+	}
+	if normalized.PaidAtMS != 0 {
+		t.Fatalf("service layer invented wallet paid_at_ms: %d", normalized.PaidAtMS)
+	}
+}
+
+func TestNormalizeDrawCommandKeepsLegacyMissingDeviceForRuleAwareValidation(t *testing.T) {
+	svc := &Service{}
+	normalized, err := svc.normalizeDrawCommand(domain.DrawCommand{
+		CommandID: "cmd-fixed-legacy-device", UserID: 1, TargetUserID: 2,
+		RoomID: "room-1", AnchorID: "2", GiftID: "rose", GiftCount: 1, CoinSpent: 10,
+	})
+	if err != nil || normalized.DeviceID != "" {
+		// normalize 尚未读到不可变规则；此处拒绝会破坏 fixed_v2 存量 JWT/command log 重放。
+		// 真正的 dynamic_v3 空设备拒绝在 MySQL 规则事务入口完成。
+		t.Fatalf("legacy missing device normalization got=%+v err=%v", normalized, err)
+	}
+}
+
+func TestNormalizeExternalDrawCommandRejectsMoreThan999SequentialDraws(t *testing.T) {
+	svc := &Service{}
+	_, err := svc.normalizeExternalDrawCommand(domain.ExternalDrawCommand{
+		AppCode: "aslan", ExternalUserID: "u-1", RequestID: "req-1",
+		GiftCount: 1_000, UnitAmount: 1, TotalAmount: 1_000, Currency: "COIN", PaidAtMS: 1,
+	})
+	if !xerr.IsCode(err, xerr.InvalidArgument) {
+		t.Fatalf("external gift_count=1000 should be rejected, got %v", err)
+	}
+}
+
+func TestNormalizeExternalDrawCommandDoesNotInventPaidAt(t *testing.T) {
+	svc := &Service{}
+	normalized, err := svc.normalizeExternalDrawCommand(domain.ExternalDrawCommand{
+		AppCode: "aslan", ExternalUserID: "u-1", RequestID: "req-paid-at",
+		GiftCount: 1, UnitAmount: 10, TotalAmount: 10, Currency: "COIN",
+	})
+	if err != nil {
+		t.Fatalf("normalize external draw: %v", err)
+	}
+	if normalized.PaidAtMS != 0 {
+		t.Fatalf("service layer invented external paid_at_ms: %d", normalized.PaidAtMS)
+	}
 }

 func TestDrawBatchRejectsAggregateWorkAcrossTargets(t *testing.T) {
--- a/services/lucky-gift-service/internal/service/luckygift/service.go
+++ b/services/lucky-gift-service/internal/service/luckygift/service.go
@ -184,6 +184,7 @@ func (s *Service) ExecuteExternalDraw(ctx context.Context, cmd domain.ExternalDr
 func (s *Service) normalizeExternalDrawCommand(cmd domain.ExternalDrawCommand) (domain.ExternalDrawCommand, error) {
 	cmd.AppCode = appcode.Normalize(cmd.AppCode)
 	cmd.ExternalUserID = strings.TrimSpace(cmd.ExternalUserID)
+	cmd.DeviceID = strings.TrimSpace(cmd.DeviceID)
 	cmd.RequestID = strings.TrimSpace(cmd.RequestID)
 	cmd.Currency = strings.ToUpper(strings.TrimSpace(cmd.Currency))
 	cmd.MetadataJSON = strings.TrimSpace(cmd.MetadataJSON)
@ -191,15 +192,17 @@ func (s *Service) normalizeExternalDrawCommand(cmd domain.ExternalDrawCommand) (
 	if cmd.AppCode == "" || cmd.ExternalUserID == "" || cmd.RequestID == "" {
 		return domain.ExternalDrawCommand{}, xerr.New(xerr.InvalidArgument, "external lucky gift identity is incomplete")
 	}
-	if len(cmd.AppCode) > 32 || len(cmd.ExternalUserID) > 128 || len(cmd.RequestID) > 128 || len(cmd.PoolID) > 96 {
+	if len(cmd.AppCode) > 32 || len(cmd.ExternalUserID) > 128 || len(cmd.DeviceID) > 128 || len(cmd.RequestID) > 128 || len(cmd.PoolID) > 96 {
 		// 外部请求的 app 级业务键会进入唯一键和审计列；长度先在服务层失败，避免事务中途暴露 MySQL truncation/too long 错误。
 		return domain.ExternalDrawCommand{}, xerr.New(xerr.InvalidArgument, "external lucky gift identity is too long")
 	}
 	if cmd.GiftCount <= 0 || cmd.UnitAmount <= 0 || cmd.TotalAmount <= 0 {
 		return domain.ExternalDrawCommand{}, xerr.New(xerr.InvalidArgument, "external lucky gift amount must be positive")
 	}
-	if cmd.GiftCount > int64(^uint32(0)>>1) {
-		return domain.ExternalDrawCommand{}, xerr.New(xerr.InvalidArgument, "external lucky gift count is too large")
+	// dynamic_v3 必须为每个礼物保存一条顺序子抽事实；与内部送礼统一限制 999，
+	// 避免外部请求用一个超大 count 制造不可控事务和审计行数。
+	if cmd.GiftCount > 999 {
+		return domain.ExternalDrawCommand{}, xerr.New(xerr.InvalidArgument, "external lucky gift count cannot exceed 999")
 	}
 	if cmd.GiftCount > (1<<63-1)/cmd.UnitAmount || cmd.GiftCount*cmd.UnitAmount != cmd.TotalAmount {
 		// 金额校验必须在 owner service 再做一遍；gateway 是外部入口，不能成为唯一可信校验点。
@ -218,10 +221,8 @@ func (s *Service) normalizeExternalDrawCommand(cmd domain.ExternalDrawCommand) (
 	if cmd.MetadataJSON != "" && !json.Valid([]byte(cmd.MetadataJSON)) {
 		return domain.ExternalDrawCommand{}, xerr.New(xerr.InvalidArgument, "external lucky gift metadata_json is invalid")
 	}
-	if cmd.PaidAtMS <= 0 {
-		// paid_at_ms 表示外部 App 扣费完成时间；缺失时用 UTC 服务端时间兜底，不能使用本地时区。
-		cmd.PaidAtMS = s.now().UTC().UnixMilli()
-	}
+	// paid_at_ms 是否可兼容缺失取决于不可变规则版本；service 层保留原值，repository
+	// 读取 fixed_v2 后才可使用 nowMS，dynamic_v3 内外调用都必须提供真实扣费时间。
 	return cmd, nil
 }

@ -237,9 +238,14 @@ func (s *Service) normalizeDrawCommand(cmd domain.DrawCommand) (domain.DrawComma
 	cmd.SenderAvatar = strings.TrimSpace(cmd.SenderAvatar)
 	cmd.SenderDisplayUserID = strings.TrimSpace(cmd.SenderDisplayUserID)
 	cmd.SenderPrettyDisplayUserID = strings.TrimSpace(cmd.SenderPrettyDisplayUserID)
-	if !giftlimits.ValidCommandID(cmd.CommandID) || cmd.UserID <= 0 || cmd.DeviceID == "" || cmd.RoomID == "" || cmd.AnchorID == "" || cmd.GiftID == "" || cmd.CoinSpent <= 0 {
+	if !giftlimits.ValidCommandID(cmd.CommandID) || cmd.UserID <= 0 || cmd.RoomID == "" || cmd.AnchorID == "" || cmd.GiftID == "" || cmd.CoinSpent <= 0 {
 		return domain.DrawCommand{}, xerr.New(xerr.InvalidArgument, "lucky gift draw command is incomplete")
 	}
+	if len(cmd.DeviceID) > 128 {
+		return domain.DrawCommand{}, xerr.New(xerr.InvalidArgument, "lucky gift draw device_id is too long")
+	}
+	// 这一层不能把空 device_id 一概拒绝：存量 fixed_v2 请求/恢复命令没有该字段。
+	// 仓储读到不可变规则后才能对 dynamic_v3 做权威 fail-close，期间不用 session/command 兜底。
 	if cmd.TargetUserID < 0 {
 		return domain.DrawCommand{}, xerr.New(xerr.InvalidArgument, "lucky gift draw metadata is invalid")
 	}
@ -248,10 +254,8 @@ func (s *Service) normalizeDrawCommand(cmd domain.DrawCommand) (domain.DrawComma
 		// The cap prevents a direct internal caller from allocating unbounded per-unit RNG/write work.
 		return domain.DrawCommand{}, xerr.New(xerr.InvalidArgument, "lucky gift count exceeds command limit")
 	}
-	if cmd.PaidAtMS <= 0 {
-		// paid_at_ms 是扣费事实时间，缺失时用 UTC 服务端时间补齐，避免本地时区污染 RTP 窗口。
-		cmd.PaidAtMS = s.now().UTC().UnixMilli()
-	}
+	// 内部 wallet paid_at_ms 不能在 service 层用当前时钟补齐：repository 必须先读取策略，
+	// fixed_v2 才允许兼容降级，dynamic_v3 则严格拒绝缺失 owner 事实。
 	return cmd, nil
 }

--- a/services/lucky-gift-service/internal/storage/mysql/external_repository.go
+++ b/services/lucky-gift-service/internal/storage/mysql/external_repository.go
@ -48,9 +48,16 @@ func externalLuckyScopeID(appCode string) string {
 	return externalLuckyHashScope("external", appcode.Normalize(appCode))
 }

-func externalLuckyDeviceID(appCode string, externalUserID string) string {
-	// 外部用户 ID 最长可到 128 字符；hash 后写入审计字段，避免长字符串碰到内部设备字段长度边界。
-	return externalLuckyHashScope("external_device", appcode.Normalize(appCode), externalUserID)
+func externalLuckyDeviceID(appCode string, deviceID string) string {
+	// 外部设备 ID 最长可到 128 字符；hash 后写入内部审计/风控字段，
+	// 既保持同 App+同设备的稳定 scope，也不把外部原始标识暴露到 draw 事实。
+	return externalLuckyHashScope("external_device", appcode.Normalize(appCode), strings.TrimSpace(deviceID))
+}
+
+func externalLuckyFixedCompatibleDeviceID(cmd domain.ExternalDrawCommand) string {
+	// fixed_v2 不解释新 device_id，始终保留历史 app+external_user_id 作用域。
+	// 只有 dynamic_v3 才使用调用方绑定的设备，避免滚动升级改写 fixed 抽奖审计语义。
+	return externalLuckyDeviceID(cmd.AppCode, cmd.ExternalUserID)
 }

 func externalLuckyAnchorID(appCode string) string {
@ -75,6 +82,9 @@ func (r *Repository) ExecuteExternalGiftDraw(ctx context.Context, cmd domain.Ext
 	}
 	defer func() { _ = tx.Rollback() }()

+	if err := r.lockExternalLuckyGiftRequest(ctx, tx, cmd.AppCode, cmd.RequestID, nowMS); err != nil {
+		return domain.ExternalDrawResult{}, err
+	}
 	if existing, ok, err := r.getExternalGiftDrawForUpdate(ctx, tx, cmd.AppCode, cmd.RequestID); err != nil || ok {
 		if err != nil {
 			return domain.ExternalDrawResult{}, err
@ -88,6 +98,16 @@ func (r *Repository) ExecuteExternalGiftDraw(ctx context.Context, cmd domain.Ext
 	if err != nil {
 		return domain.ExternalDrawResult{}, err
 	}
+	if exists && rule.StrategyVersion == domain.StrategyDynamicV3 {
+		if cmd.PaidAtMS <= 0 {
+			// 外部 dynamic_v3 同样只能消费调用方已完成扣费的事实时间；请求到达 lucky 的时间
+			// 不是支付时间，不能用于充值短窗、UTC 日/小时或精确 72h 风控归属。
+			return domain.ExternalDrawResult{}, xerr.New(xerr.InvalidArgument, "external dynamic lucky gift paid_at_ms is required")
+		}
+	} else if cmd.PaidAtMS <= 0 {
+		// 未配置规则和历史 fixed_v2 保留滚动发布兼容；dynamic_v3 永远不会进入这条降级。
+		cmd.PaidAtMS = nowMS
+	}
 	selected := externalDrawCandidate{TierID: "disabled", MultiplierPPM: 0}
 	rewardAmount := int64(0)
 	ruleVersion := rule.RuleVersion
@ -159,7 +179,27 @@ func (r *Repository) ExecuteExternalGiftDraw(ctx context.Context, cmd domain.Ext
 	return externalDrawResultFromRow(row), nil
 }

+// lockExternalLuckyGiftRequest 为“尚不存在结果行”的并发幂等补上可锁主键。
+// SELECT ... FOR UPDATE 无法锁住不存在的 external draw；先幂等建锁行后，第二个同 request_id 请求会等待首事务提交，再读回同一结果。
+func (r *Repository) lockExternalLuckyGiftRequest(ctx context.Context, tx *sql.Tx, appCode, requestID string, nowMS int64) error {
+	if _, err := tx.ExecContext(ctx, `
+		INSERT INTO external_lucky_gift_request_locks (app_code, request_id, created_at_ms)
+		VALUES (?, ?, ?)
+		ON DUPLICATE KEY UPDATE created_at_ms = created_at_ms`, appCode, requestID, nowMS,
+	); err != nil {
+		return err
+	}
+	var lockedRequestID string
+	return tx.QueryRowContext(ctx, `
+		SELECT request_id FROM external_lucky_gift_request_locks
+		WHERE app_code = ? AND request_id = ? FOR UPDATE`, appCode, requestID,
+	).Scan(&lockedRequestID)
+}
+
 func (r *Repository) executeExternalGiftEconomy(ctx context.Context, tx *sql.Tx, cmd domain.ExternalDrawCommand, rule domain.RuleConfig, nowMS int64) (externalDrawCandidate, int64, error) {
+	if rule.StrategyVersion == domain.StrategyDynamicV3 {
+		return r.executeExternalDynamicGiftEconomy(ctx, tx, cmd, rule, nowMS)
+	}
 	baseConfig, err := luckyRuntimeConfigFromRuleConfig(rule)
 	if err != nil {
 		return externalDrawCandidate{}, 0, err
@ -172,7 +212,7 @@ func (r *Repository) executeExternalGiftEconomy(ctx context.Context, tx *sql.Tx,
 		CommandID:       "external:" + cmd.AppCode + ":" + cmd.RequestID,
 		PoolID:          cmd.PoolID,
 		UserID:          externalUserID,
-		DeviceID:        externalLuckyDeviceID(cmd.AppCode, cmd.ExternalUserID),
+		DeviceID:        externalLuckyFixedCompatibleDeviceID(cmd),
 		RoomID:          roomScopeID,
 		AnchorID:        externalLuckyAnchorID(cmd.AppCode),
 		GiftID:          config.GiftID,
@ -218,6 +258,66 @@ func (r *Repository) executeExternalGiftEconomy(ctx context.Context, tx *sql.Tx,
 	return externalDrawCandidate{TierID: candidate.TierID, MultiplierPPM: candidate.MultiplierPPM}, candidate.effectiveReward(), nil
 }

+// executeExternalDynamicGiftEconomy 让外部 App 复用与房间送礼完全相同的 dynamic_v3 内核。
+// 外部调用方自己负责余额和主播收益结算，因此本服务按配置拆账、返回聚合 reward，且只写 external 子抽审计，绝不生成 HyApp wallet outbox。
+func (r *Repository) executeExternalDynamicGiftEconomy(ctx context.Context, tx *sql.Tx, cmd domain.ExternalDrawCommand, rule domain.RuleConfig, nowMS int64) (externalDrawCandidate, int64, error) {
+	trustedDeviceID, err := normalizeLuckyDynamicDeviceID(cmd.DeviceID)
+	if err != nil {
+		// luck-gateway 目前无法独立验证外部设备；dynamic_v3 至少强制调用方提供经其认证/签名绑定的稳定值。
+		// 缺失时不得用 external_user_id/request_id 伪造设备 scope。
+		return externalDrawCandidate{}, 0, err
+	}
+	config, err := luckyRuntimeConfigFromRuleConfig(rule)
+	if err != nil {
+		return externalDrawCandidate{}, 0, err
+	}
+	strategyConfig := luckyDynamicStrategyConfig(config)
+	split, err := domain.SplitLuckyGiftStrategyFunds(cmd.TotalAmount, strategyConfig)
+	if err != nil {
+		return externalDrawCandidate{}, 0, err
+	}
+	externalUserID := externalLuckyUserID(cmd.AppCode, cmd.ExternalUserID)
+	drawCommand := domain.DrawCommand{
+		CommandID:       "external:" + cmd.AppCode + ":" + cmd.RequestID,
+		PoolID:          config.PoolID,
+		UserID:          externalUserID,
+		DeviceID:        externalLuckyDeviceID(cmd.AppCode, trustedDeviceID),
+		RoomID:          externalLuckyScopeID(cmd.AppCode),
+		AnchorID:        externalLuckyAnchorID(cmd.AppCode),
+		GiftID:          config.GiftID,
+		GiftCount:       int32(cmd.GiftCount),
+		CoinSpent:       cmd.TotalAmount,
+		PaidAtMS:        cmd.PaidAtMS,
+		GiftIncomeCoins: split.AnchorReturnCoins,
+	}
+	// 当前外部协议没有可验证的充值 owner 快照；保持 0/0 会落 novice 且关闭五分钟加成，
+	// 比从 metadata 或客户端自报字段猜测更安全。后续若扩协议，必须把签名覆盖的充值事实显式入契约。
+	ctx = appcode.WithContext(ctx, cmd.AppCode)
+	results, err := r.executeDynamicLuckyGiftDrawBatch(ctx, tx, drawCommand, int32(cmd.GiftCount), rule, luckyDynamicPersistence{
+		ExternalRequestID: cmd.RequestID,
+		ExternalUserID:    cmd.ExternalUserID,
+	}, nowMS)
+	if err != nil {
+		return externalDrawCandidate{}, 0, err
+	}
+	var reward int64
+	for _, result := range results {
+		if result.EffectiveRewardCoins < 0 || reward > int64(^uint64(0)>>1)-result.EffectiveRewardCoins {
+			return externalDrawCandidate{}, 0, xerr.New(xerr.Internal, "external dynamic lucky gift reward overflow")
+		}
+		reward += result.EffectiveRewardCoins
+	}
+	candidate := externalDrawCandidate{TierID: "dynamic_v3_batch"}
+	if len(results) == 1 {
+		candidate.TierID = results[0].SelectedTierID
+		candidate.MultiplierPPM = results[0].MultiplierPPM
+	} else if ratio, valid := (domain.StrategyRTP{WagerCoins: cmd.TotalAmount, PayoutCoins: reward}).RatioPPM(); valid {
+		// 批量可能命中多个不同倍率；聚合 multiplier 仅表达 reward/total，逐抽真实倍率保存在 item 表。
+		candidate.MultiplierPPM = ratio
+	}
+	return candidate, reward, nil
+}
+
 func (r *Repository) applyExternalLuckyEconomy(ctx context.Context, tx *sql.Tx, appCode string, config domain.Config, cmd domain.DrawCommand, candidate luckyCandidate, globalWindow luckyRTPWindow, giftWindow luckyRTPWindow, basePool luckyPool, nextCumulativeWager int64, nextEquivalentDraws int64, nowMS int64) error {
 	if _, err := tx.ExecContext(ctx, `
 		UPDATE lucky_rtp_windows
--- a/services/lucky-gift-service/internal/storage/mysql/lucky_gift_dynamic_repository.go
+++ b/services/lucky-gift-service/internal/storage/mysql/lucky_gift_dynamic_repository.go
@ -0,0 +1,455 @@
+package mysql
+
+import (
+	"context"
+	"database/sql"
+	"fmt"
+	"strings"
+
+	"hyapp/pkg/appcode"
+	"hyapp/pkg/idgen"
+	"hyapp/pkg/xerr"
+	domain "hyapp/services/lucky-gift-service/internal/domain/luckygift"
+)
+
+type luckyDynamicBatchState struct {
+	PublicIn     int64
+	ProfitIn     int64
+	AnchorIn     int64
+	Payout       int64
+	DrawIDs      []string
+	Records      []luckyDrawRecordInput
+	Results      []domain.DrawResult
+	BasePool     luckyPool
+	GlobalWindow luckyRTPWindow
+	GiftWindow   luckyRTPWindow
+	// *Windows 保存本批已经滚满的窗口；当前窗口单独保留，事务尾统一按绝对快照写回。
+	GlobalWindows []luckyRTPWindow
+	GiftWindows   []luckyRTPWindow
+	UserState     luckyUserState
+	RiskCounters  map[string]luckyDynamicRiskCounter
+	DayState      luckyUserStrategyDay
+	HourState     luckyUserRTPHour
+	Strategy      domain.StrategyState
+}
+
+// luckyDynamicPersistence 把内部钱包结算与外部 App 自行结算区分开。
+// 外部模式仍推进同一套奖池/RTP/风控状态并保留 N 条子抽审计，但不能生成 HyApp wallet 返奖 outbox。
+type luckyDynamicPersistence struct {
+	ExternalRequestID string
+	ExternalUserID    string
+}
+
+func (p luckyDynamicPersistence) external() bool {
+	return p.ExternalRequestID != "" || p.ExternalUserID != ""
+}
+
+// executeDynamicLuckyGiftDrawBatch 在已经锁定规则、完成 command_id 幂等探测后执行 dynamic_v3。
+// 所有共享行只锁一次，gift_count=N 在内存里严格推进 N 次，事务尾再批量落 draw facts 和聚合钱包 outbox。
+func (r *Repository) executeDynamicLuckyGiftDrawBatch(ctx context.Context, tx *sql.Tx, cmd domain.DrawCommand, drawCount int32, rule domain.RuleConfig, persistence luckyDynamicPersistence, nowMS int64) ([]domain.DrawResult, error) {
+	if cmd.PaidAtMS <= 0 {
+		// dynamic_v3 的充值后五分钟、UTC 日/小时和精确 72h 都必须归属 wallet owner 的扣费事实时间。
+		// 外部调用也必须传它自己的扣费事实；缺失时绝不能用 lucky 收到请求或 room saga/recovery 时钟补齐。
+		return nil, xerr.New(xerr.InvalidArgument, "dynamic lucky gift paid_at_ms is required")
+	}
+	// 设备日额度是 dynamic_v3 的硬风控；只有显式的可信 device_id 才能进入事务状态。
+	// 不允许用 session_id/command_id 填充，否则换 token 或换命令即可重置设备日上限。
+	deviceID, err := normalizeLuckyDynamicDeviceID(cmd.DeviceID)
+	if err != nil {
+		return nil, err
+	}
+	cmd.DeviceID = deviceID
+	appCode := appcode.FromContext(ctx)
+	config, err := luckyRuntimeConfigFromRuleConfig(rule)
+	if err != nil {
+		return nil, err
+	}
+	if !luckyUsesDynamicStrategy(config) {
+		return nil, xerr.New(xerr.Internal, "dynamic lucky gift path received a fixed strategy")
+	}
+	strategyConfig := luckyDynamicStrategyConfig(config)
+	referencePrice := config.GiftPrice
+
+	userState, err := r.getLuckyUserStateForUpdate(ctx, tx, appCode, cmd.UserID, config.GiftID, nowMS)
+	if err != nil {
+		return nil, err
+	}
+	windowScopeID := luckyRuleWindowScopeID(config)
+	globalWindow, err := r.getOpenLuckyDynamicRTPWindow(ctx, tx, appCode, "pool", windowScopeID, config.SettlementWindowWager, config.GlobalWindowDraws, config.TargetRTPPPM, nowMS)
+	if err != nil {
+		return nil, err
+	}
+	giftWindow, err := r.getOpenLuckyDynamicRTPWindow(ctx, tx, appCode, "pool_gift", windowScopeID, config.SettlementWindowWager, config.GiftWindowDraws, config.TargetRTPPPM, nowMS)
+	if err != nil {
+		return nil, err
+	}
+	basePool, err := r.getOrCreateLuckyPool(ctx, tx, appCode, luckyBasePoolScopeType, luckyBasePoolScopeID(config), config.InitialPoolCoins, 0, nowMS)
+	if err != nil {
+		return nil, err
+	}
+	riskCounters, err := r.getLuckyDynamicRiskCounters(ctx, tx, appCode, config.PoolID, cmd, nowMS)
+	if err != nil {
+		return nil, err
+	}
+	dayState, err := r.getOrCreateLuckyUserStrategyDay(ctx, tx, appCode, config.PoolID, cmd.UserID, cmd, nowMS)
+	if err != nil {
+		return nil, err
+	}
+	hourState, err := r.getOrCreateLuckyUserRTPHour(ctx, tx, appCode, config.PoolID, cmd.UserID, cmd, nowMS)
+	if err != nil {
+		return nil, err
+	}
+	rolling72, err := r.getLuckyUserRolling72HourRTP(ctx, tx, appCode, config.PoolID, cmd.UserID, luckyPaidTime(cmd, nowMS).UnixMilli())
+	if err != nil {
+		return nil, err
+	}
+	fundSplit, err := luckyDynamicFundSplit(cmd.CoinSpent, cmd.GiftIncomeCoins, strategyConfig)
+	if err != nil {
+		return nil, err
+	}
+	unitSplits, err := luckyDynamicUnitFundSplits(cmd.CoinSpent, drawCount, fundSplit)
+	if err != nil {
+		return nil, err
+	}
+	state := luckyDynamicBatchState{
+		DrawIDs:       make([]string, 0, drawCount),
+		Records:       make([]luckyDrawRecordInput, 0, drawCount),
+		Results:       make([]domain.DrawResult, 0, drawCount),
+		BasePool:      basePool,
+		GlobalWindow:  globalWindow,
+		GiftWindow:    giftWindow,
+		GlobalWindows: make([]luckyRTPWindow, 0, 2),
+		GiftWindows:   make([]luckyRTPWindow, 0, 2),
+		UserState:     userState,
+		RiskCounters:  riskCounters,
+		DayState:      dayState,
+		HourState:     hourState,
+		Strategy: domain.StrategyState{
+			PoolBalanceCoins:       basePool.Balance,
+			ConsecutiveZeroDraws:   userState.LossStreak,
+			PendingMilestoneTokens: userState.PendingJackpotTokens,
+			UserDailyJackpotWins:   dayState.JackpotHits,
+			UserDaySpendCoins:      dayState.SpendCoins,
+			GlobalRTP:              domain.StrategyRTP{WagerCoins: globalWindow.WagerCoins, PayoutCoins: globalWindow.ActualPayoutCoins},
+			UserDayRTP:             domain.StrategyRTP{WagerCoins: dayState.WagerCoins, PayoutCoins: dayState.PayoutCoins},
+			User72HourRTP:          rolling72,
+			Version:                userState.PaidDraws,
+		},
+	}
+
+	for index := int32(1); index <= drawCount; index++ {
+		// gift_count=N 的每一份都必须像独立命令一样跨 RTP 窗口；若上一抽正好填满，
+		// 本抽先创建下一窗口并让 mechanism1 使用新窗口 RTP，不能等整批结束后才滚动。
+		if err := r.rollLuckyDynamicWindows(ctx, tx, appCode, config.SettlementWindowWager, &state, nowMS); err != nil {
+			return nil, err
+		}
+		unitCommand := cmd
+		unitCommand.CommandID = luckyDrawSubCommandID(cmd.CommandID, index, drawCount)
+		unitCommand.GiftCount = 1
+		unitCommand.CoinSpent = luckyDrawUnitSpend(cmd.CoinSpent, drawCount, index)
+		unitSplit := unitSplits[index-1]
+		unitCommand.GiftIncomeCoins = unitSplit.AnchorReturnCoins
+		if unitCommand.CoinSpent <= 0 {
+			return nil, xerr.New(xerr.InvalidArgument, "dynamic lucky gift unit spend must be positive")
+		}
+		if unitSplit.PublicPoolCoins+unitSplit.ProfitPoolCoins+unitSplit.AnchorReturnCoins != unitCommand.CoinSpent {
+			return nil, xerr.New(xerr.Internal, "dynamic lucky gift unit fund split is not conserved")
+		}
+		decision, err := domain.DecideLuckyGiftStrategy(strategyConfig, state.Strategy, domain.StrategyInput{
+			GiftPriceCoins:        unitCommand.CoinSpent,
+			PoolContributionCoins: unitSplit.PublicPoolCoins,
+			NowMS:                 luckyPaidTime(unitCommand, nowMS).UnixMilli(),
+			HasRechargeFact:       unitCommand.LastRechargedAtMS > 0,
+			LastRechargeAtMS:      unitCommand.LastRechargedAtMS,
+			Recharge7DCoins:       unitCommand.Recharge7DCoins,
+			Recharge30DCoins:      unitCommand.Recharge30DCoins,
+			RiskCapacity:          luckyDynamicRiskCapacity(config, state.RiskCounters),
+		}, luckyCryptoStrategyRandom{})
+		if err != nil {
+			return nil, err
+		}
+		if err := r.stageLuckyDynamicDecision(appCode, config, referencePrice, unitCommand, unitSplit, decision, nowMS, &state); err != nil {
+			return nil, err
+		}
+	}
+	if persistence.external() {
+		if persistence.ExternalRequestID == "" || persistence.ExternalUserID == "" {
+			return nil, xerr.New(xerr.InvalidArgument, "external dynamic lucky gift persistence identity is incomplete")
+		}
+		for index := range state.Records {
+			state.Records[index].RewardStatus = domain.StatusGranted
+			state.Results[index].RewardStatus = domain.StatusGranted
+		}
+	}
+	if err := r.persistLuckyDynamicBatch(ctx, tx, appCode, cmd, config, state, persistence, nowMS); err != nil {
+		return nil, err
+	}
+	return state.Results, nil
+}
+
+func normalizeLuckyDynamicDeviceID(value string) (string, error) {
+	value = strings.TrimSpace(value)
+	if value == "" {
+		return "", xerr.New(xerr.InvalidArgument, "dynamic lucky gift device_id is required")
+	}
+	if len(value) > 128 {
+		return "", xerr.New(xerr.InvalidArgument, "dynamic lucky gift device_id is too long")
+	}
+	return value, nil
+}
+
+func (r *Repository) rollLuckyDynamicWindows(ctx context.Context, tx *sql.Tx, appCode string, controlWager int64, state *luckyDynamicBatchState, nowMS int64) error {
+	if controlWager <= 0 {
+		return xerr.New(xerr.Internal, "dynamic lucky gift RTP window wager must be positive")
+	}
+	// 图中“结算窗口流水”是金币阈值，不是抽数。整笔单抽归属进入时所在窗口；本抽把流水推过阈值后，下一抽才开启新窗口，避免拆分一次中奖事实。
+	if state.GlobalWindow.WagerCoins >= controlWager {
+		closed := state.GlobalWindow
+		closed.Status = "closed"
+		state.GlobalWindows = append(state.GlobalWindows, closed)
+		next, err := r.createLuckyRTPWindow(
+			ctx, tx, appCode, closed.ScopeType, closed.ScopeID, closed.WindowIndex+1,
+			closed.CarryPPM, closed.ControlDraws, closed.TargetRTPPPM, nowMS,
+		)
+		if err != nil {
+			return err
+		}
+		state.GlobalWindow = next
+		// 大奖机制一只看当前结算窗口；窗口滚动后分母为 0，必须先积累新样本，不能沿用旧窗口资格。
+		state.Strategy.GlobalRTP = domain.StrategyRTP{
+			WagerCoins:  next.WagerCoins,
+			PayoutCoins: next.ActualPayoutCoins,
+		}
+	}
+	if state.GiftWindow.WagerCoins >= controlWager {
+		closed := state.GiftWindow
+		closed.Status = "closed"
+		state.GiftWindows = append(state.GiftWindows, closed)
+		next, err := r.createLuckyRTPWindow(
+			ctx, tx, appCode, closed.ScopeType, closed.ScopeID, closed.WindowIndex+1,
+			closed.CarryPPM, closed.ControlDraws, closed.TargetRTPPPM, nowMS,
+		)
+		if err != nil {
+			return err
+		}
+		state.GiftWindow = next
+	}
+	return nil
+}
+
+func (r *Repository) stageLuckyDynamicDecision(appCode string, config domain.Config, referencePrice int64, cmd domain.DrawCommand, split domain.StrategyFundSplit, decision domain.StrategyDecision, nowMS int64, state *luckyDynamicBatchState) error {
+	state.PublicIn += split.PublicPoolCoins
+	state.ProfitIn += split.ProfitPoolCoins
+	state.AnchorIn += split.AnchorReturnCoins
+	state.Payout += decision.PayoutCoins
+	state.Strategy = decision.NextState
+	state.BasePool.Balance = decision.PoolAfterCoins
+	state.BasePool.TotalIn += split.PublicPoolCoins
+	state.BasePool.TotalOut += decision.PayoutCoins
+	state.GlobalWindow = state.GlobalWindow.withCurrentWager(cmd.CoinSpent)
+	state.GlobalWindow.PaidDraws++
+	state.GlobalWindow.ActualPayoutCoins += decision.PayoutCoins
+	state.GiftWindow = state.GiftWindow.withCurrentWager(cmd.CoinSpent)
+	state.GiftWindow.PaidDraws++
+	state.GiftWindow.ActualPayoutCoins += decision.PayoutCoins
+	state.UserState.PaidDraws++
+	state.UserState.CumulativeWagerCoins += cmd.CoinSpent
+	state.UserState.EquivalentDraws = luckyEquivalentDraws(state.UserState.CumulativeWagerCoins, referencePrice)
+	state.UserState.LossStreak = decision.NextState.ConsecutiveZeroDraws
+	state.UserState.PendingJackpotTokens = decision.NextState.PendingMilestoneTokens
+	state.DayState.WagerCoins = decision.NextState.UserDayRTP.WagerCoins
+	state.DayState.PayoutCoins = decision.NextState.UserDayRTP.PayoutCoins
+	state.DayState.SpendCoins = decision.NextState.UserDaySpendCoins
+	state.DayState.JackpotHits = decision.NextState.UserDailyJackpotWins
+	state.HourState.WagerCoins += cmd.CoinSpent
+	state.HourState.PayoutCoins += decision.PayoutCoins
+	for key, counter := range state.RiskCounters {
+		counter.Payout += decision.PayoutCoins
+		state.RiskCounters[key] = counter
+	}
+
+	candidate := luckyCandidate{
+		TierID:         decision.SelectedTier.ID,
+		Pool:           decision.Stage,
+		Weight:         luckyDynamicSelectedWeight(decision),
+		BaseReward:     decision.PayoutCoins,
+		MultiplierPPM:  decision.SelectedTier.MultiplierPPM,
+		HighMultiplier: decision.Jackpot || decision.SelectedTier.MultiplierPPM >= 10_000_000,
+	}
+	drawID := idgen.New("lucky_draw")
+	rewardStatus := luckyInitialRewardStatus(candidate, false)
+	limited := luckyDynamicLimitedReasons(decision.Trace)
+	decisionCopy := decision
+	poolSnapshot := state.BasePool
+	globalSnapshot := state.GlobalWindow
+	giftSnapshot := state.GiftWindow
+	record := luckyDrawRecordInput{
+		AppCode:          appCode,
+		DrawID:           drawID,
+		Command:          cmd,
+		Config:           config,
+		ExperiencePool:   decision.Stage,
+		Candidate:        candidate,
+		Limited:          limited,
+		GlobalWindow:     globalSnapshot,
+		GiftWindow:       giftSnapshot,
+		BasePool:         poolSnapshot,
+		StrategyDecision: &decisionCopy,
+		FundSplit:        split,
+		UserDayRTP:       decision.NextState.UserDayRTP,
+		User72HourRTP:    decision.NextState.User72HourRTP,
+		RewardStatus:     rewardStatus,
+		NowMS:            nowMS,
+	}
+	state.DrawIDs = append(state.DrawIDs, drawID)
+	state.Records = append(state.Records, record)
+	globalRTP, _ := decision.NextState.GlobalRTP.RatioPPM()
+	giftRTP := luckyRTPPPM(giftSnapshot.WagerCoins, giftSnapshot.ActualPayoutCoins)
+	state.Results = append(state.Results, domain.DrawResult{
+		DrawID:               drawID,
+		CommandID:            cmd.CommandID,
+		PoolID:               config.PoolID,
+		GiftID:               cmd.GiftID,
+		RuleVersion:          config.RuleVersion,
+		ExperiencePool:       decision.Stage,
+		SelectedTierID:       candidate.TierID,
+		MultiplierPPM:        candidate.MultiplierPPM,
+		BaseRewardCoins:      candidate.BaseReward,
+		EffectiveRewardCoins: candidate.effectiveReward(),
+		RewardStatus:         rewardStatus,
+		RTPWindowIndex:       globalSnapshot.WindowIndex,
+		GiftRTPWindowIndex:   giftSnapshot.WindowIndex,
+		GlobalBaseRTPPPM:     globalRTP,
+		GiftBaseRTPPPM:       giftRTP,
+		StageFeedback:        decision.Trace.FinalReason == domain.StrategyReasonPaid && decision.Trace.OriginalTierID == "",
+		HighMultiplier:       candidate.HighMultiplier,
+		CreatedAtMS:          nowMS,
+	})
+	return nil
+}
+
+func (r *Repository) persistLuckyDynamicBatch(ctx context.Context, tx *sql.Tx, appCode string, cmd domain.DrawCommand, config domain.Config, state luckyDynamicBatchState, persistence luckyDynamicPersistence, nowMS int64) error {
+	if err := validateLuckyDynamicBatchState(state, cmd.CoinSpent); err != nil {
+		return err
+	}
+	globalWindows := append(append([]luckyRTPWindow(nil), state.GlobalWindows...), state.GlobalWindow)
+	giftWindows := append(append([]luckyRTPWindow(nil), state.GiftWindows...), state.GiftWindow)
+	for _, window := range append(globalWindows, giftWindows...) {
+		if _, err := tx.ExecContext(ctx, `
+			UPDATE lucky_rtp_windows
+			SET paid_draws = ?, wager_coins = ?, target_payout_coins = ?,
+			    actual_base_payout_coins = ?, carry_ppm = ?, status = ?, updated_at_ms = ?
+			WHERE app_code = ? AND scope_type = ? AND scope_id = ? AND window_index = ?`,
+			window.PaidDraws, window.WagerCoins, window.TargetPayoutCoins, window.ActualPayoutCoins, window.CarryPPM, window.Status, nowMS,
+			appCode, window.ScopeType, window.ScopeID, window.WindowIndex,
+		); err != nil {
+			return err
+		}
+	}
+	if err := r.updateLuckyDynamicPoolNet(ctx, tx, appCode, luckyBasePoolScopeID(config), state.PublicIn, state.Payout, state.ProfitIn, state.AnchorIn, nowMS); err != nil {
+		return err
+	}
+	if _, err := tx.ExecContext(ctx, `
+		UPDATE lucky_user_states
+		SET paid_draws = ?, cumulative_wager_coins = ?, equivalent_draws = ?, loss_streak = ?,
+		    pending_jackpot_tokens = ?, updated_at_ms = ?
+		WHERE app_code = ? AND user_id = ? AND gift_id = ?`,
+		state.UserState.PaidDraws, state.UserState.CumulativeWagerCoins, state.UserState.EquivalentDraws, state.UserState.LossStreak,
+		state.UserState.PendingJackpotTokens, nowMS, appCode, cmd.UserID, config.GiftID,
+	); err != nil {
+		return err
+	}
+	if err := r.addLuckyDynamicRiskPayout(ctx, tx, appCode, state.RiskCounters, state.Payout, nowMS); err != nil {
+		return err
+	}
+	if err := r.persistLuckyUserStrategyDay(ctx, tx, appCode, config.PoolID, cmd.UserID, state.DayState, nowMS); err != nil {
+		return err
+	}
+	if err := r.persistLuckyUserRTPHour(ctx, tx, appCode, config.PoolID, cmd.UserID, state.HourState, nowMS); err != nil {
+		return err
+	}
+	if err := r.insertLuckyUserRTPBoundaryEvents(ctx, tx, appCode, config.PoolID, cmd.UserID, state.Records, nowMS); err != nil {
+		return err
+	}
+	if persistence.external() {
+		return r.insertExternalLuckyGiftDrawItems(ctx, tx, appCode, persistence, state.Records, nowMS)
+	}
+	if err := r.insertLuckyDrawRecords(ctx, tx, state.Records); err != nil {
+		return err
+	}
+	if state.Payout <= 0 {
+		return nil
+	}
+	aggregate := luckyAggregateDrawResults(cmd, state.Results)
+	legacyState := luckyBatchDrawState{DrawIDs: state.DrawIDs, AggregateResult: aggregate, NeedsRewardSettlement: true}
+	return r.insertLuckyAggregateRewardSettlementOutbox(ctx, tx, appCode, cmd, legacyState, nowMS)
+}
+
+func luckyDynamicSelectedWeight(decision domain.StrategyDecision) int64 {
+	for _, item := range decision.Trace.Weights {
+		if item.TierID == decision.SelectedTier.ID {
+			return item.AdjustedWeightPPM
+		}
+	}
+	return decision.SelectedTier.JackpotWeight
+}
+
+func luckyDynamicLimitedReasons(trace domain.DecisionTrace) map[string]bool {
+	out := make(map[string]bool, len(trace.Removed)+1)
+	for _, removed := range trace.Removed {
+		out[removed.Reason] = true
+	}
+	if trace.BlockedReason != "" {
+		out[trace.BlockedReason] = true
+	}
+	return out
+}
+
+func validateLuckyDynamicBatchState(state luckyDynamicBatchState, expectedSpent int64) error {
+	if state.BasePool.Balance < 0 {
+		return fmt.Errorf("dynamic lucky gift pool became negative")
+	}
+	if state.PublicIn+state.ProfitIn+state.AnchorIn != expectedSpent {
+		return fmt.Errorf("dynamic lucky gift fund split does not conserve spend")
+	}
+	return nil
+}
+
+// insertExternalLuckyGiftDrawItems 给 external gift_count=N 保存 N 条独立决策；聚合响应仍是一行，
+// 但 P/W 删除、token、六维风控和每抽池水位不能只藏在一个最终 multiplier 里。
+func (r *Repository) insertExternalLuckyGiftDrawItems(ctx context.Context, tx *sql.Tx, appCode string, persistence luckyDynamicPersistence, records []luckyDrawRecordInput, nowMS int64) error {
+	const chunkSize = 200
+	for start := 0; start < len(records); start += chunkSize {
+		end := start + chunkSize
+		if end > len(records) {
+			end = len(records)
+		}
+		var query strings.Builder
+		query.WriteString(`
+			INSERT INTO external_lucky_gift_draw_items (
+			  app_code, request_id, item_index, draw_id, command_id, external_user_id, pool_id,
+			  rule_version, unit_amount, reward_amount, selected_tier_id, multiplier_ppm, stage,
+			  candidate_snapshot_json, pool_snapshot_json, rtp_snapshot_json, reward_status,
+			  paid_at_ms, created_at_ms
+			) VALUES `)
+		args := make([]any, 0, (end-start)*19)
+		for offset, record := range records[start:end] {
+			if offset > 0 {
+				query.WriteByte(',')
+			}
+			query.WriteString("(" + luckySQLPlaceholders(19) + ")")
+			candidateSnapshot, poolSnapshot, rtpSnapshot := luckyDrawRecordSnapshots(record)
+			args = append(args,
+				appCode, persistence.ExternalRequestID, start+offset+1, record.DrawID, record.Command.CommandID,
+				persistence.ExternalUserID, record.Config.PoolID, record.Config.RuleVersion, record.Command.CoinSpent,
+				record.Candidate.effectiveReward(), record.Candidate.TierID, record.Candidate.MultiplierPPM, record.ExperiencePool,
+				candidateSnapshot, poolSnapshot, rtpSnapshot, domain.StatusGranted,
+				luckyPaidTime(record.Command, nowMS).UnixMilli(), nowMS,
+			)
+		}
+		if _, err := tx.ExecContext(ctx, query.String(), args...); err != nil {
+			return err
+		}
+	}
+	return nil
+}
--- a/services/lucky-gift-service/internal/storage/mysql/lucky_gift_dynamic_repository_test.go
+++ b/services/lucky-gift-service/internal/storage/mysql/lucky_gift_dynamic_repository_test.go
@ -0,0 +1,480 @@
+package mysql
+
+import (
+	"context"
+	"database/sql"
+	"fmt"
+	"sync"
+	"testing"
+	"time"
+
+	"hyapp/internal/testutil/mysqlschema"
+	"hyapp/pkg/appcode"
+	"hyapp/pkg/xerr"
+	domain "hyapp/services/lucky-gift-service/internal/domain/luckygift"
+)
+
+func TestDynamicLuckyGiftMySQLBatchAndExternalPaths(t *testing.T) {
+	caller := mysqlschema.CallerFile(t, 1)
+	schema := mysqlschema.New(t, mysqlschema.Config{
+		EnvVar:         "LUCKY_GIFT_SERVICE_MYSQL_TEST_DSN",
+		InitDBPath:     mysqlschema.InitDBPath(t, caller, "..", "..", "..", "deploy", "mysql", "initdb", "001_lucky_gift_service.sql"),
+		DatabasePrefix: "hy_lucky_dynamic",
+	})
+	repo := &Repository{db: schema.DB}
+	ctx := appcode.WithContext(context.Background(), "lalu")
+	now := time.Date(2026, 7, 12, 12, 30, 0, 0, time.UTC).UnixMilli()
+
+	internalRule := dynamicMySQLTestRule("internal-dynamic")
+	internalRule.SettlementWindowWager = 99
+	// 参考价故意设为 10：旧算法会把 99 流水错误折成 10 抽；本用例预置 10 抽/98 流水，证明 V3 不会因抽数已满而提前滚窗。
+	internalRule.GiftPriceReference = 10
+	if _, err := repo.PublishLuckyGiftRuleConfig(ctx, internalRule, now-1_000); err != nil {
+		t.Fatalf("publish internal dynamic rule: %v", err)
+	}
+	checked, err := repo.CheckLuckyGift(ctx, domain.CheckCommand{PoolID: internalRule.PoolID, GiftID: "super-lucky", UserID: 1001, RoomID: "room-1"})
+	if err != nil || checked.StrategyVersion != domain.StrategyDynamicV3 {
+		t.Fatalf("check did not expose immutable strategy version: result=%+v err=%v", checked, err)
+	}
+	seedDynamicRTPWindowsBelowWagerThreshold(t, schema.DB, internalRule.PoolID, now-900)
+	command := domain.DrawCommand{
+		CommandID: "dynamic-99", PoolID: internalRule.PoolID, UserID: 1001, TargetUserID: 2001,
+		DeviceID: "device-1001", RoomID: "room-1", AnchorID: "anchor-1", GiftID: "super-lucky",
+		GiftCount: 99, CoinSpent: 100, GiftIncomeCoins: 1, PaidAtMS: now,
+	}
+	missingWalletPaidAt := command
+	missingWalletPaidAt.CommandID = "dynamic-missing-wallet-paid-at"
+	missingWalletPaidAt.PaidAtMS = 0
+	if _, err := repo.ExecuteLuckyGiftDraw(ctx, missingWalletPaidAt, now+123_456); !xerr.IsCode(err, xerr.InvalidArgument) {
+		t.Fatalf("dynamic_v3 missing wallet paid_at_ms should fail closed, got %v", err)
+	}
+	var missingPaidAtDraws int64
+	if err := schema.DB.QueryRow(`SELECT COUNT(*) FROM lucky_draw_records WHERE app_code='lalu' AND command_id=?`, missingWalletPaidAt.CommandID).Scan(&missingPaidAtDraws); err != nil || missingPaidAtDraws != 0 {
+		t.Fatalf("missing wallet paid_at_ms draw facts=%d err=%v", missingPaidAtDraws, err)
+	}
+	missingDevice := command
+	missingDevice.CommandID = "dynamic-missing-device"
+	missingDevice.DeviceID = ""
+	if _, err := repo.ExecuteLuckyGiftDraw(ctx, missingDevice, now); !xerr.IsCode(err, xerr.InvalidArgument) {
+		t.Fatalf("dynamic_v3 missing signed device_id should fail closed, got %v", err)
+	}
+	var missingDeviceDraws int64
+	if err := schema.DB.QueryRow(`SELECT COUNT(*) FROM lucky_draw_records WHERE app_code='lalu' AND command_id=?`, missingDevice.CommandID).Scan(&missingDeviceDraws); err != nil || missingDeviceDraws != 0 {
+		t.Fatalf("missing device_id draw facts=%d err=%v", missingDeviceDraws, err)
+	}
+	// 两个相同 command_id 的首次请求同时进入：两者都必须成功，后到者等待 command lock 后
+	// 从首次事务回读同一批 99 条事实，不能以唯一键冲突失败，更不能额外推进奖池/RTP/风控。
+	var internalResults [2]domain.DrawResult
+	var internalErrors [2]error
+	internalStart := make(chan struct{})
+	var internalWorkers sync.WaitGroup
+	for index := range internalResults {
+		internalWorkers.Add(1)
+		go func(index int) {
+			defer internalWorkers.Done()
+			<-internalStart
+			internalResults[index], internalErrors[index] = repo.ExecuteLuckyGiftDraw(ctx, command, now)
+		}(index)
+	}
+	close(internalStart)
+	internalWorkers.Wait()
+	for index, workerErr := range internalErrors {
+		if workerErr != nil {
+			t.Fatalf("internal concurrent worker %d: %v", index, workerErr)
+		}
+	}
+	first := internalResults[0]
+	if len(first.DrawIDs) != 99 {
+		t.Fatalf("aggregate draw ids=%d want=99", len(first.DrawIDs))
+	}
+	if internalResults[1].DrawID != first.DrawID ||
+		internalResults[1].EffectiveRewardCoins != first.EffectiveRewardCoins ||
+		internalResults[1].MultiplierPPM != first.MultiplierPPM ||
+		internalResults[1].RewardStatus != first.RewardStatus ||
+		fmt.Sprint(internalResults[1].DrawIDs) != fmt.Sprint(first.DrawIDs) ||
+		fmt.Sprint(internalResults[1].Hits) != fmt.Sprint(first.Hits) {
+		t.Fatalf("internal concurrent aggregate mismatch: %+v / %+v", first, internalResults[1])
+	}
+	var internalLockCount int64
+	if err := schema.DB.QueryRow(`
+		SELECT COUNT(*) FROM lucky_gift_command_locks
+		WHERE app_code='lalu' AND command_id=?`, command.CommandID,
+	).Scan(&internalLockCount); err != nil || internalLockCount != 1 {
+		t.Fatalf("internal command lock count=%d err=%v", internalLockCount, err)
+	}
+	assertDynamicMySQLBatchFacts(t, schema.DB, "lalu", internalRule.PoolID, command.UserID, command.CommandID, 99, 100, 98, 1, 1)
+	assertDynamicRTPWindowRollover(t, schema.DB, internalRule.PoolID)
+	assertExactRolling72HourBoundary(t, repo, schema.DB, ctx, internalRule.PoolID, now)
+
+	// 顺序重放必须只读回首次 99 条事实，不能再次入池、推进风控或生成钱包返奖。
+	replayed, err := repo.ExecuteLuckyGiftDraw(ctx, command, now+1)
+	if err != nil {
+		t.Fatalf("replay dynamic 99 draw: %v", err)
+	}
+	if replayed.DrawID != first.DrawID || replayed.EffectiveRewardCoins != first.EffectiveRewardCoins {
+		t.Fatalf("replay changed aggregate: first=%+v replay=%+v", first, replayed)
+	}
+	assertDynamicMySQLBatchFacts(t, schema.DB, "lalu", internalRule.PoolID, command.UserID, command.CommandID, 99, 100, 98, 1, 1)
+	assertDynamicTokenSurvivesUTCDayBoundary(t, repo, schema.DB, ctx, now)
+
+	externalRule := dynamicMySQLTestRule("external-dynamic")
+	if _, err := repo.PublishLuckyGiftRuleConfig(ctx, externalRule, now-500); err != nil {
+		t.Fatalf("publish external dynamic rule: %v", err)
+	}
+	missingExternalPaidAt := domain.ExternalDrawCommand{
+		AppCode: "lalu", ExternalUserID: "external-missing-paid-at", DeviceID: "trusted-device-missing-paid-at", RequestID: "external-dynamic-missing-paid-at",
+		GiftCount: 1, UnitAmount: 10, TotalAmount: 10, Currency: "COIN", PoolID: externalRule.PoolID,
+	}
+	if _, err := repo.ExecuteExternalGiftDraw(ctx, missingExternalPaidAt, now+234_567); !xerr.IsCode(err, xerr.InvalidArgument) {
+		t.Fatalf("external dynamic_v3 missing paid_at_ms should fail closed, got %v", err)
+	}
+	var missingExternalDraws int64
+	if err := schema.DB.QueryRow(`SELECT COUNT(*) FROM external_lucky_gift_draws WHERE app_code='lalu' AND request_id=?`, missingExternalPaidAt.RequestID).Scan(&missingExternalDraws); err != nil || missingExternalDraws != 0 {
+		t.Fatalf("missing external paid_at_ms draw facts=%d err=%v", missingExternalDraws, err)
+	}
+	external := domain.ExternalDrawCommand{
+		AppCode: "lalu", ExternalUserID: "external-42", DeviceID: "external-device-attested-42", RequestID: "external-dynamic-99",
+		GiftCount: 99, UnitAmount: 10, TotalAmount: 990, Currency: "COIN", PaidAtMS: now, PoolID: externalRule.PoolID,
+	}
+	missingExternalDevice := external
+	missingExternalDevice.RequestID = "external-dynamic-missing-device"
+	missingExternalDevice.DeviceID = ""
+	if _, err := repo.ExecuteExternalGiftDraw(ctx, missingExternalDevice, now); !xerr.IsCode(err, xerr.InvalidArgument) {
+		t.Fatalf("external dynamic_v3 missing caller-bound device_id should fail closed, got %v", err)
+	}
+	var missingExternalDeviceDraws int64
+	if err := schema.DB.QueryRow(`SELECT COUNT(*) FROM external_lucky_gift_draws WHERE app_code='lalu' AND request_id=?`, missingExternalDevice.RequestID).Scan(&missingExternalDeviceDraws); err != nil || missingExternalDeviceDraws != 0 {
+		t.Fatalf("missing external device draw facts=%d err=%v", missingExternalDeviceDraws, err)
+	}
+	var walletSettlementEventsBefore int64
+	if err := schema.DB.QueryRow(`
+		SELECT COUNT(*) FROM lucky_gift_outbox
+		WHERE app_code='lalu' AND event_type=?`, domain.EventTypeLuckyGiftRewardSettlement,
+	).Scan(&walletSettlementEventsBefore); err != nil {
+		t.Fatalf("query wallet settlement outbox before external: %v", err)
+	}
+	// 两个同 request_id 的首次请求同时进入时，request lock 必须让后到者等待并读回同一结果。
+	var results [2]domain.ExternalDrawResult
+	var errorsByWorker [2]error
+	start := make(chan struct{})
+	var workers sync.WaitGroup
+	for index := range results {
+		workers.Add(1)
+		go func(index int) {
+			defer workers.Done()
+			<-start
+			results[index], errorsByWorker[index] = repo.ExecuteExternalGiftDraw(ctx, external, now)
+		}(index)
+	}
+	close(start)
+	workers.Wait()
+	for index, workerErr := range errorsByWorker {
+		if workerErr != nil {
+			t.Fatalf("external concurrent worker %d: %v", index, workerErr)
+		}
+	}
+	if results[0].DrawID == "" || results[0].DrawID != results[1].DrawID || results[0].RewardAmount != results[1].RewardAmount {
+		t.Fatalf("external concurrent idempotency mismatch: %+v / %+v", results[0], results[1])
+	}
+	var aggregateCount, itemCount, itemSpend, itemReward int64
+	if err := schema.DB.QueryRow(`SELECT COUNT(*) FROM external_lucky_gift_draws WHERE app_code='lalu' AND request_id=?`, external.RequestID).Scan(&aggregateCount); err != nil {
+		t.Fatalf("query external aggregate: %v", err)
+	}
+	if err := schema.DB.QueryRow(`
+		SELECT COUNT(*), COALESCE(SUM(unit_amount),0), COALESCE(SUM(reward_amount),0)
+		FROM external_lucky_gift_draw_items WHERE app_code='lalu' AND request_id=?`, external.RequestID,
+	).Scan(&itemCount, &itemSpend, &itemReward); err != nil {
+		t.Fatalf("query external items: %v", err)
+	}
+	if aggregateCount != 1 || itemCount != 99 || itemSpend != 990 || itemReward != results[0].RewardAmount {
+		t.Fatalf("external facts aggregate=%d items=%d spend=%d reward=%d result=%d", aggregateCount, itemCount, itemSpend, itemReward, results[0].RewardAmount)
+	}
+	expectedExternalDeviceScope := luckyPoolScopedID(externalRule.PoolID, externalLuckyDeviceID(external.AppCode, external.DeviceID))
+	legacyExternalUserScope := luckyPoolScopedID(externalRule.PoolID, externalLuckyDeviceID(external.AppCode, external.ExternalUserID))
+	var expectedDeviceCounters, legacyUserCounters int64
+	if err := schema.DB.QueryRow(`
+		SELECT COUNT(*) FROM lucky_risk_counters
+		WHERE app_code='lalu' AND scope_type='device' AND scope_id=?`, expectedExternalDeviceScope,
+	).Scan(&expectedDeviceCounters); err != nil {
+		t.Fatalf("query external device counter: %v", err)
+	}
+	if err := schema.DB.QueryRow(`
+		SELECT COUNT(*) FROM lucky_risk_counters
+		WHERE app_code='lalu' AND scope_type='device' AND scope_id=?`, legacyExternalUserScope,
+	).Scan(&legacyUserCounters); err != nil {
+		t.Fatalf("query legacy external-user device counter: %v", err)
+	}
+	if expectedDeviceCounters != 1 || legacyUserCounters != 0 {
+		t.Fatalf("external dynamic device scope counters trusted=%d legacy_user=%d", expectedDeviceCounters, legacyUserCounters)
+	}
+	if _, err := repo.ExecuteExternalGiftDraw(ctx, external, now+1); err != nil {
+		t.Fatalf("replay external dynamic result: %v", err)
+	}
+	var walletSettlementEventsAfter int64
+	if err := schema.DB.QueryRow(`
+		SELECT COUNT(*) FROM lucky_gift_outbox
+		WHERE app_code='lalu' AND event_type=?`, domain.EventTypeLuckyGiftRewardSettlement,
+	).Scan(&walletSettlementEventsAfter); err != nil {
+		t.Fatalf("query wallet settlement outbox after external: %v", err)
+	}
+	if walletSettlementEventsAfter != walletSettlementEventsBefore {
+		t.Fatalf("external dynamic draw created HyApp wallet settlements: before=%d after=%d", walletSettlementEventsBefore, walletSettlementEventsAfter)
+	}
+}
+
+func seedDynamicRTPWindowsBelowWagerThreshold(t *testing.T, db *sql.DB, poolID string, nowMS int64) {
+	t.Helper()
+	scopeID := poolID + ":v1"
+	for _, scopeType := range []string{"pool", "pool_gift"} {
+		if _, err := db.Exec(`
+			INSERT INTO lucky_rtp_windows (
+			 app_code,scope_type,scope_id,window_index,target_rtp_ppm,control_window_draws,
+			 paid_draws,wager_coins,target_payout_coins,actual_base_payout_coins,carry_ppm,status,created_at_ms,updated_at_ms
+			) VALUES ('lalu',?,?,1,980000,10,10,98,96,0,40000,'open',?,?)`,
+			scopeType, scopeID, nowMS, nowMS,
+		); err != nil {
+			t.Fatalf("seed %s RTP window: %v", scopeType, err)
+		}
+	}
+}
+
+func assertDynamicRTPWindowRollover(t *testing.T, db *sql.DB, poolID string) {
+	t.Helper()
+	scopeID := poolID + ":v1"
+	for _, scopeType := range []string{"pool", "pool_gift"} {
+		rows, err := db.Query(`
+			SELECT window_index, paid_draws, wager_coins, status FROM lucky_rtp_windows
+			WHERE app_code='lalu' AND scope_type=? AND scope_id=? ORDER BY window_index`, scopeType, scopeID)
+		if err != nil {
+			t.Fatalf("query %s rollover: %v", scopeType, err)
+		}
+		var indexes, paid, wagers []int64
+		var statuses []string
+		for rows.Next() {
+			var index, drawCount, wager int64
+			var status string
+			if err := rows.Scan(&index, &drawCount, &wager, &status); err != nil {
+				_ = rows.Close()
+				t.Fatalf("scan %s rollover: %v", scopeType, err)
+			}
+			indexes = append(indexes, index)
+			paid = append(paid, drawCount)
+			wagers = append(wagers, wager)
+			statuses = append(statuses, status)
+		}
+		if err := rows.Close(); err != nil {
+			t.Fatalf("close %s rollover rows: %v", scopeType, err)
+		}
+		if fmt.Sprint(indexes) != "[1 2]" || fmt.Sprint(paid) != "[11 98]" || fmt.Sprint(wagers) != "[100 98]" || fmt.Sprint(statuses) != "[closed open]" {
+			t.Fatalf("%s wager rollover indexes/paid/wager/status=%v/%v/%v/%v", scopeType, indexes, paid, wagers, statuses)
+		}
+	}
+	var firstWindow, secondWindow, firstGiftWindow, secondGiftWindow int64
+	if err := db.QueryRow(`
+		SELECT
+		 COALESCE(SUM(CASE WHEN command_id LIKE 'dynamic-99#%' AND rtp_window_index=1 THEN 1 ELSE 0 END),0),
+		 COALESCE(SUM(CASE WHEN command_id LIKE 'dynamic-99#%' AND rtp_window_index=2 THEN 1 ELSE 0 END),0),
+		 COALESCE(SUM(CASE WHEN command_id LIKE 'dynamic-99#%' AND gift_rtp_window_index=1 THEN 1 ELSE 0 END),0),
+		 COALESCE(SUM(CASE WHEN command_id LIKE 'dynamic-99#%' AND gift_rtp_window_index=2 THEN 1 ELSE 0 END),0)
+		FROM lucky_draw_records WHERE app_code='lalu' AND pool_id=?`, poolID,
+	).Scan(&firstWindow, &secondWindow, &firstGiftWindow, &secondGiftWindow); err != nil {
+		t.Fatalf("query draw rollover indexes: %v", err)
+	}
+	if firstWindow != 1 || secondWindow != 98 || firstGiftWindow != 1 || secondGiftWindow != 98 {
+		t.Fatalf("draw rollover global/gift=%d/%d %d/%d want=1/98 1/98", firstWindow, secondWindow, firstGiftWindow, secondGiftWindow)
+	}
+}
+
+func assertDynamicTokenSurvivesUTCDayBoundary(t *testing.T, repo *Repository, db *sql.DB, ctx context.Context, dayOneMS int64) {
+	t.Helper()
+	rule := dynamicMySQLTestRule("token-cross-day")
+	if _, err := repo.PublishLuckyGiftRuleConfig(ctx, rule, dayOneMS-100); err != nil {
+		t.Fatalf("publish token rule: %v", err)
+	}
+	userID := int64(3030)
+	earn := domain.DrawCommand{
+		CommandID: "token-earn", PoolID: rule.PoolID, UserID: userID, TargetUserID: 1,
+		DeviceID: "device-token", RoomID: "room-token", AnchorID: "anchor-token", GiftID: "super-lucky",
+		GiftCount: 1, CoinSpent: 5_000, GiftIncomeCoins: 50, PaidAtMS: dayOneMS,
+	}
+	if _, err := repo.ExecuteLuckyGiftDraw(ctx, earn, dayOneMS); err != nil {
+		t.Fatalf("earn milestone token: %v", err)
+	}
+	assertPendingTokenCount(t, db, rule.PoolID, userID, 1)
+	if _, err := db.Exec(`UPDATE lucky_pools SET balance=0 WHERE app_code='lalu' AND scope_type='pool' AND scope_id=?`, rule.PoolID); err != nil {
+		t.Fatalf("drain token test pool: %v", err)
+	}
+	dayTwoMS := time.UnixMilli(dayOneMS).UTC().Add(24 * time.Hour).UnixMilli()
+	retain := earn
+	retain.CommandID = "token-retain-next-day"
+	retain.CoinSpent = 1
+	retain.GiftIncomeCoins = 0
+	retain.PaidAtMS = dayTwoMS
+	if _, err := repo.ExecuteLuckyGiftDraw(ctx, retain, dayTwoMS); err != nil {
+		t.Fatalf("retain token across UTC day: %v", err)
+	}
+	assertPendingTokenCount(t, db, rule.PoolID, userID, 1)
+	if _, err := db.Exec(`UPDATE lucky_pools SET balance=1000000 WHERE app_code='lalu' AND scope_type='pool' AND scope_id=?`, rule.PoolID); err != nil {
+		t.Fatalf("refill token test pool: %v", err)
+	}
+	consume := retain
+	consume.CommandID = "token-consume-next-day"
+	consume.PaidAtMS++
+	result, err := repo.ExecuteLuckyGiftDraw(ctx, consume, dayTwoMS+1)
+	if err != nil {
+		t.Fatalf("consume retained token: %v", err)
+	}
+	if !result.HighMultiplier || result.EffectiveRewardCoins <= 0 {
+		t.Fatalf("retained token did not produce payable jackpot: %+v", result)
+	}
+	assertPendingTokenCount(t, db, rule.PoolID, userID, 0)
+}
+
+func assertPendingTokenCount(t *testing.T, db *sql.DB, poolID string, userID, want int64) {
+	t.Helper()
+	var got int64
+	if err := db.QueryRow(`
+		SELECT pending_jackpot_tokens FROM lucky_user_states
+		WHERE app_code='lalu' AND user_id=? AND gift_id=?`, userID, poolID,
+	).Scan(&got); err != nil {
+		t.Fatalf("query pending token: %v", err)
+	}
+	if got != want {
+		t.Fatalf("pending token=%d want=%d", got, want)
+	}
+}
+
+func assertExactRolling72HourBoundary(t *testing.T, repo *Repository, db *sql.DB, ctx context.Context, poolID string, endMS int64) {
+	t.Helper()
+	const hourMS = int64(time.Hour / time.Millisecond)
+	startMS := endMS - 72*hourMS
+	fullStartMS := startMS + (hourMS - startMS%hourMS)
+	fullEndMS := endMS - endMS%hourMS
+	userID := int64(9090)
+	if _, err := db.Exec(`
+		INSERT INTO lucky_user_rtp_hour_buckets (
+		 app_code,pool_id,user_id,bucket_hour_ms,wager_coins,payout_coins,created_at_ms,updated_at_ms
+		) VALUES
+		 ('lalu',?,?,?,10,1,1,1),
+		 ('lalu',?,?,?,999,999,1,1)`,
+		poolID, userID, fullStartMS,
+		poolID, userID, fullEndMS,
+	); err != nil {
+		t.Fatalf("seed exact 72h buckets: %v", err)
+	}
+	events := []struct {
+		id     string
+		atMS   int64
+		wager  int64
+		payout int64
+	}{
+		{"before-start", startMS - 1, 100, 100},
+		{"at-start", startMS, 2, 1},
+		{"lower-end", fullStartMS - 1, 3, 1},
+		{"inside-full-hour", fullStartMS, 100, 100},
+		{"upper-start", fullEndMS, 4, 1},
+		{"before-end", endMS - 1, 5, 1},
+		{"at-end", endMS, 100, 100},
+	}
+	for _, event := range events {
+		if _, err := db.Exec(`
+			INSERT INTO lucky_user_rtp_boundary_events (
+			 app_code,pool_id,user_id,draw_id,occurred_at_ms,wager_coins,payout_coins,created_at_ms
+			) VALUES ('lalu',?,?,?,?,?,?,1)`,
+			poolID, userID, event.id, event.atMS, event.wager, event.payout,
+		); err != nil {
+			t.Fatalf("seed exact 72h event %s: %v", event.id, err)
+		}
+	}
+	tx, err := db.BeginTx(ctx, nil)
+	if err != nil {
+		t.Fatalf("begin exact 72h query: %v", err)
+	}
+	defer func() { _ = tx.Rollback() }()
+	rtp, err := repo.getLuckyUserRolling72HourRTP(ctx, tx, "lalu", poolID, userID, endMS)
+	if err != nil {
+		t.Fatalf("query exact 72h: %v", err)
+	}
+	// 完整小时只取 bucket=10/1；边界严格包含 start、排除 end，并且不重复计算 fullStart 事件。
+	if rtp != (domain.StrategyRTP{WagerCoins: 24, PayoutCoins: 5}) {
+		t.Fatalf("exact 72h RTP=%+v want wager=24 payout=5", rtp)
+	}
+}
+
+func assertDynamicMySQLBatchFacts(t *testing.T, db queryRower, appCode, poolID string, userID int64, commandPrefix string, draws, spent, public, profit, anchor int64) {
+	t.Helper()
+	var count, spentSum, publicSum, profitSum, anchorSum, invalidUnits int64
+	err := db.QueryRow(`
+		SELECT COUNT(*), COALESCE(SUM(coin_spent),0),
+		       COALESCE(SUM(CAST(JSON_UNQUOTE(JSON_EXTRACT(pool_snapshot_json,'$.fund_split.public_pool_coins')) AS SIGNED)),0),
+		       COALESCE(SUM(CAST(JSON_UNQUOTE(JSON_EXTRACT(pool_snapshot_json,'$.fund_split.profit_pool_coins')) AS SIGNED)),0),
+		       COALESCE(SUM(CAST(JSON_UNQUOTE(JSON_EXTRACT(pool_snapshot_json,'$.fund_split.anchor_return_coins')) AS SIGNED)),0),
+		       COALESCE(SUM(CASE WHEN coin_spent <>
+		         CAST(JSON_UNQUOTE(JSON_EXTRACT(pool_snapshot_json,'$.fund_split.public_pool_coins')) AS SIGNED) +
+		         CAST(JSON_UNQUOTE(JSON_EXTRACT(pool_snapshot_json,'$.fund_split.profit_pool_coins')) AS SIGNED) +
+		         CAST(JSON_UNQUOTE(JSON_EXTRACT(pool_snapshot_json,'$.fund_split.anchor_return_coins')) AS SIGNED)
+		       THEN 1 ELSE 0 END),0)
+		FROM lucky_draw_records
+		WHERE app_code=? AND pool_id=? AND command_id LIKE ?`, appCode, poolID, commandPrefix+"#%",
+	).Scan(&count, &spentSum, &publicSum, &profitSum, &anchorSum, &invalidUnits)
+	if err != nil {
+		t.Fatalf("query dynamic batch facts: %v", err)
+	}
+	if count != draws || spentSum != spent || publicSum != public || profitSum != profit || anchorSum != anchor || invalidUnits != 0 {
+		t.Fatalf("batch facts count/spent/split/invalid=%d/%d/%d/%d/%d/%d want=%d/%d/%d/%d/%d/0",
+			count, spentSum, publicSum, profitSum, anchorSum, invalidUnits, draws, spent, public, profit, anchor)
+	}
+	var eventCount, eventWager int64
+	if err := db.QueryRow(`
+		SELECT COUNT(*), COALESCE(SUM(wager_coins),0) FROM lucky_user_rtp_boundary_events
+		WHERE app_code=? AND pool_id=? AND user_id=?`, appCode, poolID, userID,
+	).Scan(&eventCount, &eventWager); err != nil {
+		t.Fatalf("query exact 72h events: %v", err)
+	}
+	if eventCount != draws || eventWager != spent {
+		t.Fatalf("72h events count/wager=%d/%d want=%d/%d", eventCount, eventWager, draws, spent)
+	}
+}
+
+type queryRower interface {
+	QueryRow(query string, args ...any) *sql.Row
+}
+
+func dynamicMySQLTestRule(poolID string) domain.RuleConfig {
+	stages := make([]domain.RuleStage, 0, 3)
+	for index, stageName := range []string{domain.StageNovice, domain.StageNormal, domain.StageAdvanced} {
+		stage := domain.RuleStage{Stage: stageName}
+		if index >= 1 {
+			stage.MinRecharge30DCoins = 1
+		}
+		if index >= 2 {
+			stage.MinRecharge7DCoins = 1
+		}
+		for _, tier := range []struct {
+			id         string
+			multiplier int64
+			weight     int64
+		}{{"0x", 0, 50_000}, {"0_5x", 500_000, 40_000}, {"1x", 1_000_000, 860_000}, {"2x", 2_000_000, 50_000}} {
+			stage.Tiers = append(stage.Tiers, domain.RuleTier{
+				Stage: stageName, TierID: fmt.Sprintf("%s_%s", stageName, tier.id),
+				MultiplierPPM: tier.multiplier, BaseWeightPPM: tier.weight, Enabled: true,
+			})
+		}
+		stages = append(stages, stage)
+	}
+	return domain.RuleConfig{
+		PoolID: poolID, StrategyVersion: domain.StrategyDynamicV3, Enabled: true,
+		TargetRTPPPM: 980_000, PoolRatePPM: 980_000, ProfitRatePPM: 10_000, AnchorRatePPM: 10_000,
+		SettlementWindowWager: 1_000_000, ControlBandPPM: 30_000, GiftPriceReference: 1,
+		InitialPoolCoins: 1_000_000, LossStreakGuarantee: 5,
+		LowWatermarkCoins: 10_000_000, LowWaterNonzeroFactorPPM: 700_000,
+		HighWatermarkCoins: 20_000_000, HighWaterNonzeroFactorPPM: 1_300_000,
+		RechargeBoostWindowMS: 300_000, RechargeBoostFactorPPM: 1_100_000,
+		JackpotMultiplierPPMs:  []int64{200_000_000, 500_000_000, 1_000_000_000},
+		JackpotGlobalRTPMaxPPM: 980_000, JackpotUserDayRTPMaxPPM: 960_000, JackpotUser72hRTPMaxPPM: 960_000,
+		JackpotSpendThresholdCoins: 5_000, MaxJackpotHitsPerUserDay: 5,
+		MaxSinglePayout: 1_000_000, UserHourlyPayoutCap: 2_000_000, UserDailyPayoutCap: 3_000_000,
+		DeviceDailyPayoutCap: 4_000_000, RoomHourlyPayoutCap: 5_000_000, AnchorDailyPayoutCap: 6_000_000,
+		Stages: stages,
+	}
+}
--- a/services/lucky-gift-service/internal/storage/mysql/lucky_gift_dynamic_state.go
+++ b/services/lucky-gift-service/internal/storage/mysql/lucky_gift_dynamic_state.go
@ -0,0 +1,278 @@
+package mysql
+
+import (
+	"context"
+	"database/sql"
+	"fmt"
+	"strings"
+	"time"
+
+	domain "hyapp/services/lucky-gift-service/internal/domain/luckygift"
+)
+
+// luckyDynamicRiskCounter 是 dynamic_v3 在事务内锁定的单个风控窗口。
+// scope_id 始终带 pool_id 前缀，防止同一用户在普通幸运与超级幸运池之间错误共享额度。
+type luckyDynamicRiskCounter struct {
+	ScopeType  string
+	ScopeID    string
+	WindowType string
+	BucketKey  string
+	Payout     int64
+}
+
+type luckyUserStrategyDay struct {
+	StatDay     string
+	WagerCoins  int64
+	PayoutCoins int64
+	SpendCoins  int64
+	JackpotHits int64
+}
+
+type luckyUserRTPHour struct {
+	BucketHourMS int64
+	WagerCoins   int64
+	PayoutCoins  int64
+}
+
+func luckyPaidTime(cmd domain.DrawCommand, nowMS int64) time.Time {
+	ms := cmd.PaidAtMS
+	if ms <= 0 {
+		ms = nowMS
+	}
+	return time.UnixMilli(ms).UTC()
+}
+
+func (r *Repository) getLuckyDynamicRiskCounters(ctx context.Context, tx *sql.Tx, appCode, poolID string, cmd domain.DrawCommand, nowMS int64) (map[string]luckyDynamicRiskCounter, error) {
+	paidAt := luckyPaidTime(cmd, nowMS)
+	hour := paidAt.Format("2006-01-02T15")
+	day := paidAt.Format("2006-01-02")
+	specs := []luckyDynamicRiskCounter{
+		{ScopeType: "user", ScopeID: luckyPoolScopedID(poolID, fmt.Sprintf("%d", cmd.UserID)), WindowType: "hour", BucketKey: hour},
+		{ScopeType: "user", ScopeID: luckyPoolScopedID(poolID, fmt.Sprintf("%d", cmd.UserID)), WindowType: "day", BucketKey: day},
+		{ScopeType: "device", ScopeID: luckyPoolScopedID(poolID, cmd.DeviceID), WindowType: "day", BucketKey: day},
+		{ScopeType: "room", ScopeID: luckyPoolScopedID(poolID, cmd.RoomID), WindowType: "hour", BucketKey: hour},
+		{ScopeType: "anchor", ScopeID: luckyPoolScopedID(poolID, cmd.AnchorID), WindowType: "day", BucketKey: day},
+	}
+	out := make(map[string]luckyDynamicRiskCounter, len(specs))
+	for _, spec := range specs {
+		counter, err := r.getOrCreateLuckyDynamicRiskCounter(ctx, tx, appCode, spec, nowMS)
+		if err != nil {
+			return nil, err
+		}
+		out[luckyDynamicRiskCounterKey(spec.ScopeType, spec.WindowType)] = counter
+	}
+	return out, nil
+}
+
+func (r *Repository) getOrCreateLuckyDynamicRiskCounter(ctx context.Context, tx *sql.Tx, appCode string, spec luckyDynamicRiskCounter, nowMS int64) (luckyDynamicRiskCounter, error) {
+	// 幂等建行先取得唯一键写锁，消除两个首次请求都读到 no rows 后其中一个 duplicate-key 失败的竞态。
+	if _, err := tx.ExecContext(ctx, `
+		INSERT INTO lucky_risk_counters (
+		  app_code, scope_type, scope_id, window_type, bucket_key, payout_coins, created_at_ms, updated_at_ms
+		) VALUES (?, ?, ?, ?, ?, 0, ?, ?)
+		ON DUPLICATE KEY UPDATE updated_at_ms = updated_at_ms`,
+		appCode, spec.ScopeType, spec.ScopeID, spec.WindowType, spec.BucketKey, nowMS, nowMS,
+	); err != nil {
+		return luckyDynamicRiskCounter{}, err
+	}
+	err := tx.QueryRowContext(ctx, `
+		SELECT payout_coins
+		FROM lucky_risk_counters
+		WHERE app_code = ? AND scope_type = ? AND scope_id = ? AND window_type = ? AND bucket_key = ?
+		FOR UPDATE`,
+		appCode, spec.ScopeType, spec.ScopeID, spec.WindowType, spec.BucketKey,
+	).Scan(&spec.Payout)
+	return spec, err
+}
+
+func luckyDynamicRiskCapacity(config domain.Config, counters map[string]luckyDynamicRiskCounter) domain.StrategyRiskCapacity {
+	// 每个值都是“本抽还能支付多少”，而不是配置总额；0 是真实硬锁，不能被解释为 unlimited。
+	return domain.StrategyRiskCapacity{
+		Enabled:         true,
+		SingleDrawCoins: config.MaxSinglePayout,
+		UserHourCoins:   maxInt64(0, config.UserHourlyPayoutCap-counters[luckyDynamicRiskCounterKey("user", "hour")].Payout),
+		UserDayCoins:    maxInt64(0, config.UserDailyPayoutCap-counters[luckyDynamicRiskCounterKey("user", "day")].Payout),
+		DeviceDayCoins:  maxInt64(0, config.DeviceDailyPayoutCap-counters[luckyDynamicRiskCounterKey("device", "day")].Payout),
+		RoomHourCoins:   maxInt64(0, config.RoomHourlyPayoutCap-counters[luckyDynamicRiskCounterKey("room", "hour")].Payout),
+		AnchorDayCoins:  maxInt64(0, config.AnchorDailyPayoutCap-counters[luckyDynamicRiskCounterKey("anchor", "day")].Payout),
+	}
+}
+
+func (r *Repository) addLuckyDynamicRiskPayout(ctx context.Context, tx *sql.Tx, appCode string, counters map[string]luckyDynamicRiskCounter, payout, nowMS int64) error {
+	if payout <= 0 {
+		return nil
+	}
+	for _, counter := range counters {
+		if _, err := tx.ExecContext(ctx, `
+			UPDATE lucky_risk_counters
+			SET payout_coins = payout_coins + ?, updated_at_ms = ?
+			WHERE app_code = ? AND scope_type = ? AND scope_id = ? AND window_type = ? AND bucket_key = ?`,
+			payout, nowMS, appCode, counter.ScopeType, counter.ScopeID, counter.WindowType, counter.BucketKey,
+		); err != nil {
+			return err
+		}
+	}
+	return nil
+}
+
+func luckyDynamicRiskCounterKey(scopeType, windowType string) string {
+	return scopeType + ":" + windowType
+}
+
+func (r *Repository) getOrCreateLuckyUserStrategyDay(ctx context.Context, tx *sql.Tx, appCode, poolID string, userID int64, cmd domain.DrawCommand, nowMS int64) (luckyUserStrategyDay, error) {
+	day := luckyPaidTime(cmd, nowMS).Format("2006-01-02")
+	state := luckyUserStrategyDay{StatDay: day}
+	if _, err := tx.ExecContext(ctx, `
+		INSERT INTO lucky_user_strategy_days (
+		  app_code, pool_id, user_id, stat_day, wager_coins, payout_coins, spend_coins,
+		  jackpot_hits, created_at_ms, updated_at_ms
+		) VALUES (?, ?, ?, ?, 0, 0, 0, 0, ?, ?)
+		ON DUPLICATE KEY UPDATE updated_at_ms = updated_at_ms`,
+		appCode, poolID, userID, day, nowMS, nowMS,
+	); err != nil {
+		return luckyUserStrategyDay{}, err
+	}
+	err := tx.QueryRowContext(ctx, `
+		SELECT wager_coins, payout_coins, spend_coins, jackpot_hits
+		FROM lucky_user_strategy_days
+		WHERE app_code = ? AND pool_id = ? AND user_id = ? AND stat_day = ?
+		FOR UPDATE`, appCode, poolID, userID, day,
+	).Scan(&state.WagerCoins, &state.PayoutCoins, &state.SpendCoins, &state.JackpotHits)
+	return state, err
+}
+
+func (r *Repository) persistLuckyUserStrategyDay(ctx context.Context, tx *sql.Tx, appCode, poolID string, userID int64, state luckyUserStrategyDay, nowMS int64) error {
+	_, err := tx.ExecContext(ctx, `
+		UPDATE lucky_user_strategy_days
+		SET wager_coins = ?, payout_coins = ?, spend_coins = ?, jackpot_hits = ?, updated_at_ms = ?
+		WHERE app_code = ? AND pool_id = ? AND user_id = ? AND stat_day = ?`,
+		state.WagerCoins, state.PayoutCoins, state.SpendCoins, state.JackpotHits, nowMS,
+		appCode, poolID, userID, state.StatDay,
+	)
+	return err
+}
+
+func (r *Repository) getOrCreateLuckyUserRTPHour(ctx context.Context, tx *sql.Tx, appCode, poolID string, userID int64, cmd domain.DrawCommand, nowMS int64) (luckyUserRTPHour, error) {
+	paidAt := luckyPaidTime(cmd, nowMS)
+	bucketHourMS := paidAt.Truncate(time.Hour).UnixMilli()
+	state := luckyUserRTPHour{BucketHourMS: bucketHourMS}
+	if _, err := tx.ExecContext(ctx, `
+		INSERT INTO lucky_user_rtp_hour_buckets (
+		  app_code, pool_id, user_id, bucket_hour_ms, wager_coins, payout_coins, created_at_ms, updated_at_ms
+		) VALUES (?, ?, ?, ?, 0, 0, ?, ?)
+		ON DUPLICATE KEY UPDATE updated_at_ms = updated_at_ms`,
+		appCode, poolID, userID, bucketHourMS, nowMS, nowMS,
+	); err != nil {
+		return luckyUserRTPHour{}, err
+	}
+	err := tx.QueryRowContext(ctx, `
+		SELECT wager_coins, payout_coins
+		FROM lucky_user_rtp_hour_buckets
+		WHERE app_code = ? AND pool_id = ? AND user_id = ? AND bucket_hour_ms = ?
+		FOR UPDATE`, appCode, poolID, userID, bucketHourMS,
+	).Scan(&state.WagerCoins, &state.PayoutCoins)
+	return state, err
+}
+
+func (r *Repository) getLuckyUserRolling72HourRTP(ctx context.Context, tx *sql.Tx, appCode, poolID string, userID int64, endMS int64) (domain.StrategyRTP, error) {
+	// 严格口径是 [end-72h,end)，不能把“当前小时+前71整点桶”近似成 72h。
+	// 完整小时从聚合桶读取；头尾两个不足一小时的片段从专用边界事件读取，避免回扫 lucky_draw_records。
+	const hourMS = int64(time.Hour / time.Millisecond)
+	startMS := endMS - 72*hourMS
+	if startMS < 0 || endMS <= 0 {
+		return domain.StrategyRTP{}, fmt.Errorf("dynamic lucky gift 72h range is invalid")
+	}
+	fullStartMS := startMS
+	if remainder := startMS % hourMS; remainder != 0 {
+		fullStartMS += hourMS - remainder
+	}
+	fullEndMS := endMS - endMS%hourMS
+	var state domain.StrategyRTP
+	if fullStartMS < fullEndMS {
+		if err := tx.QueryRowContext(ctx, `
+			SELECT COALESCE(SUM(wager_coins), 0), COALESCE(SUM(payout_coins), 0)
+			FROM lucky_user_rtp_hour_buckets
+			WHERE app_code = ? AND pool_id = ? AND user_id = ?
+			  AND bucket_hour_ms >= ? AND bucket_hour_ms < ?`,
+			appCode, poolID, userID, fullStartMS, fullEndMS,
+		).Scan(&state.WagerCoins, &state.PayoutCoins); err != nil {
+			return domain.StrategyRTP{}, err
+		}
+	}
+	for _, boundary := range [][2]int64{{startMS, fullStartMS}, {fullEndMS, endMS}} {
+		if boundary[0] >= boundary[1] {
+			continue
+		}
+		var wager, payout int64
+		if err := tx.QueryRowContext(ctx, `
+			SELECT COALESCE(SUM(wager_coins), 0), COALESCE(SUM(payout_coins), 0)
+			FROM lucky_user_rtp_boundary_events
+			WHERE app_code = ? AND pool_id = ? AND user_id = ?
+			  AND occurred_at_ms >= ? AND occurred_at_ms < ?`,
+			appCode, poolID, userID, boundary[0], boundary[1],
+		).Scan(&wager, &payout); err != nil {
+			return domain.StrategyRTP{}, err
+		}
+		if state.WagerCoins > int64(^uint64(0)>>1)-wager || state.PayoutCoins > int64(^uint64(0)>>1)-payout {
+			return domain.StrategyRTP{}, fmt.Errorf("dynamic lucky gift 72h RTP overflow")
+		}
+		state.WagerCoins += wager
+		state.PayoutCoins += payout
+	}
+	return state, nil
+}
+
+func (r *Repository) insertLuckyUserRTPBoundaryEvents(ctx context.Context, tx *sql.Tx, appCode, poolID string, userID int64, records []luckyDrawRecordInput, nowMS int64) error {
+	const chunkSize = 200
+	for start := 0; start < len(records); start += chunkSize {
+		end := start + chunkSize
+		if end > len(records) {
+			end = len(records)
+		}
+		var query strings.Builder
+		query.WriteString(`
+			INSERT INTO lucky_user_rtp_boundary_events (
+			  app_code, pool_id, user_id, draw_id, occurred_at_ms, wager_coins, payout_coins, created_at_ms
+			) VALUES `)
+		args := make([]any, 0, (end-start)*8)
+		for index, record := range records[start:end] {
+			if index > 0 {
+				query.WriteByte(',')
+			}
+			query.WriteString("(?,?,?,?,?,?,?,?)")
+			args = append(args,
+				appCode, poolID, userID, record.DrawID, luckyPaidTime(record.Command, nowMS).UnixMilli(),
+				record.Command.CoinSpent, record.Candidate.effectiveReward(), nowMS,
+			)
+		}
+		if _, err := tx.ExecContext(ctx, query.String(), args...); err != nil {
+			return err
+		}
+	}
+	return nil
+}
+
+func (r *Repository) persistLuckyUserRTPHour(ctx context.Context, tx *sql.Tx, appCode, poolID string, userID int64, state luckyUserRTPHour, nowMS int64) error {
+	_, err := tx.ExecContext(ctx, `
+		UPDATE lucky_user_rtp_hour_buckets
+		SET wager_coins = ?, payout_coins = ?, updated_at_ms = ?
+		WHERE app_code = ? AND pool_id = ? AND user_id = ? AND bucket_hour_ms = ?`,
+		state.WagerCoins, state.PayoutCoins, nowMS, appCode, poolID, userID, state.BucketHourMS,
+	)
+	return err
+}
+
+func (r *Repository) updateLuckyDynamicPoolNet(ctx context.Context, tx *sql.Tx, appCode, scopeID string, publicIn, payout, profitIn, anchorIncome, nowMS int64) error {
+	if publicIn < 0 || payout < 0 || profitIn < 0 || anchorIncome < 0 {
+		return fmt.Errorf("dynamic lucky gift pool delta cannot be negative")
+	}
+	_, err := tx.ExecContext(ctx, `
+		UPDATE lucky_pools
+		SET balance = balance + ? - ?, total_in = total_in + ?, total_out = total_out + ?,
+		    profit_total = profit_total + ?, anchor_income_total = anchor_income_total + ?, updated_at_ms = ?
+		WHERE app_code = ? AND scope_type = ? AND scope_id = ?`,
+		publicIn, payout, publicIn, payout, profitIn, anchorIncome, nowMS,
+		appCode, luckyBasePoolScopeType, scopeID,
+	)
+	return err
+}
--- a/services/lucky-gift-service/internal/storage/mysql/lucky_gift_dynamic_strategy.go
+++ b/services/lucky-gift-service/internal/storage/mysql/lucky_gift_dynamic_strategy.go
@ -0,0 +1,220 @@
+package mysql
+
+import (
+	crand "crypto/rand"
+	"fmt"
+	"math/big"
+	"sort"
+
+	domain "hyapp/services/lucky-gift-service/internal/domain/luckygift"
+)
+
+type luckyCryptoStrategyRandom struct{}
+
+func (luckyCryptoStrategyRandom) Int63n(n int64) (int64, error) {
+	if n <= 0 {
+		return 0, fmt.Errorf("lucky strategy random bound must be positive")
+	}
+	value, err := crand.Int(crand.Reader, big.NewInt(n))
+	if err != nil {
+		return 0, err
+	}
+	return value.Int64(), nil
+}
+
+func luckyUsesDynamicStrategy(config domain.Config) bool {
+	return config.StrategyVersion == domain.StrategyDynamicV3
+}
+
+// luckyDynamicStrategyConfig 把不可变规则快照转换为纯策略输入。
+// 同一倍率在三个充值阶段可能使用不同 tier_id；运行内核按倍率合并并保存 stage->weight，
+// 从而既只有一个 0x 候选，又不会把某阶段不存在的倍率错误继承到另一阶段。
+func luckyDynamicStrategyConfig(config domain.Config) domain.StrategyConfig {
+	stageNames := make([]string, 0, len(config.Stages))
+	rechargeStages := make([]domain.StrategyRechargeStage, 0, len(config.Stages))
+	for _, stage := range config.Stages {
+		stageNames = append(stageNames, stage.Stage)
+		rechargeStages = append(rechargeStages, domain.StrategyRechargeStage{
+			Name:                stage.Stage,
+			MinRecharge7DCoins:  stage.MinRecharge7DCoins,
+			MinRecharge30DCoins: stage.MinRecharge30DCoins,
+		})
+	}
+	jackpotSet := make(map[int64]struct{}, len(config.JackpotMultiplierPPMs))
+	for _, multiplier := range config.JackpotMultiplierPPMs {
+		jackpotSet[multiplier] = struct{}{}
+	}
+	tiersByMultiplier := make(map[int64]*domain.StrategyTier)
+	for _, stage := range config.Stages {
+		for _, configured := range stage.Tiers {
+			if !configured.Enabled {
+				continue
+			}
+			tier := tiersByMultiplier[configured.MultiplierPPM]
+			if tier == nil {
+				stageWeights := make(map[string]int64, len(stageNames))
+				for _, stageName := range stageNames {
+					stageWeights[stageName] = 0
+				}
+				tier = &domain.StrategyTier{
+					ID:             fmt.Sprintf("multiplier_%d", configured.MultiplierPPM),
+					MultiplierPPM:  configured.MultiplierPPM,
+					StageWeightPPM: stageWeights,
+					Enabled:        true,
+				}
+				tiersByMultiplier[configured.MultiplierPPM] = tier
+			}
+			tier.StageWeightPPM[stage.Stage] += configured.BaseWeightPPM
+		}
+	}
+	// 大奖机制从显式倍率集合随机，不要求运营把 200x/500x/1000x 塞进普通概率表。
+	// 图片没有提供大奖之间的权重，因此统一使用 1；这一选择会完整进入 decision trace，不能被误认为基础概率。
+	for multiplier := range jackpotSet {
+		tier := tiersByMultiplier[multiplier]
+		if tier == nil {
+			stageWeights := make(map[string]int64, len(stageNames))
+			for _, stageName := range stageNames {
+				stageWeights[stageName] = 0
+			}
+			tier = &domain.StrategyTier{
+				ID:             fmt.Sprintf("jackpot_%d", multiplier),
+				MultiplierPPM:  multiplier,
+				StageWeightPPM: stageWeights,
+				Enabled:        true,
+			}
+			tiersByMultiplier[multiplier] = tier
+		}
+		tier.Jackpot = true
+		tier.JackpotWeight = 1
+	}
+	multipliers := make([]int64, 0, len(tiersByMultiplier))
+	for multiplier := range tiersByMultiplier {
+		multipliers = append(multipliers, multiplier)
+	}
+	sort.Slice(multipliers, func(i, j int) bool { return multipliers[i] < multipliers[j] })
+	tiers := make([]domain.StrategyTier, 0, len(multipliers))
+	for _, multiplier := range multipliers {
+		tiers = append(tiers, *tiersByMultiplier[multiplier])
+	}
+	return domain.StrategyConfig{
+		Tiers:                    tiers,
+		PublicPoolRatePPM:        config.PoolRatePPM,
+		ProfitPoolRatePPM:        config.ProfitRatePPM,
+		AnchorReturnRatePPM:      config.AnchorRatePPM,
+		ColdStartPoolCoins:       config.InitialPoolCoins,
+		LowWaterThresholdCoins:   config.LowWatermarkCoins,
+		HighWaterThresholdCoins:  config.HighWatermarkCoins,
+		LowWaterFactorPPM:        config.LowWaterNonzeroFactorPPM,
+		HighWaterFactorPPM:       config.HighWaterNonzeroFactorPPM,
+		RechargeFactorPPM:        config.RechargeBoostFactorPPM,
+		RechargeBoostStartMS:     0,
+		RechargeBoostEndMS:       config.RechargeBoostWindowMS,
+		MissProtectionZeroDraws:  config.LossStreakGuarantee,
+		DailyJackpotLimit:        config.MaxJackpotHitsPerUserDay,
+		MilestoneSpendCoins:      config.JackpotSpendThresholdCoins,
+		JackpotMechanism1Enabled: true,
+		JackpotMechanism2Enabled: config.JackpotSpendThresholdCoins > 0,
+		GlobalRTPMaxPPM:          config.JackpotGlobalRTPMaxPPM,
+		UserDayRTPMaxPPM:         config.JackpotUserDayRTPMaxPPM,
+		User72HourRTPMaxPPM:      config.JackpotUser72hRTPMaxPPM,
+		RechargeStages:           rechargeStages,
+	}
+}
+
+// luckyDynamicFundSplit 以不可变规则做唯一拆账，并校验 wallet 已经发给收礼人的 COIN 与规则主播份额完全一致。
+// dynamic_v3 不能把旧 room 缺字段解释成 0，也不能把 App 钱包配置的其他返币比例静默塞进盈利池；
+// 启用新规则前必须先完成 wallet/room 契约滚动升级并让礼物返币配置与本规则一致。
+func luckyDynamicFundSplit(totalSpent, actualAnchorIncome int64, config domain.StrategyConfig) (domain.StrategyFundSplit, error) {
+	configured, err := domain.SplitLuckyGiftStrategyFunds(totalSpent, config)
+	if err != nil {
+		return domain.StrategyFundSplit{}, err
+	}
+	if actualAnchorIncome != configured.AnchorReturnCoins {
+		return domain.StrategyFundSplit{}, fmt.Errorf(
+			"dynamic lucky gift anchor income mismatch: wallet=%d configured=%d",
+			actualAnchorIncome,
+			configured.AnchorReturnCoins,
+		)
+	}
+	return configured, nil
+}
+
+// luckyDynamicUnitFundSplits 联合分配整批的三个资金桶：每一抽都先满足
+// public_i+profit_i+anchor_i=unit_spent_i，同时整批三桶又精确等于总拆账。
+// 不能分别对四个总量调用“余数落前几抽”，否则 100 金币/99 抽的首抽会出现 spent=2、三桶=3。
+func luckyDynamicUnitFundSplits(totalSpent int64, drawCount int32, total domain.StrategyFundSplit) ([]domain.StrategyFundSplit, error) {
+	if totalSpent <= 0 || drawCount <= 0 || total.PublicPoolCoins < 0 || total.ProfitPoolCoins < 0 || total.AnchorReturnCoins < 0 ||
+		total.PublicPoolCoins+total.ProfitPoolCoins+total.AnchorReturnCoins != totalSpent {
+		return nil, fmt.Errorf("dynamic lucky gift batch split is invalid")
+	}
+	units := make([]int64, drawCount)
+	for index := int32(1); index <= drawCount; index++ {
+		units[index-1] = luckyDrawUnitSpend(totalSpent, drawCount, index)
+		if units[index-1] <= 0 {
+			return nil, fmt.Errorf("dynamic lucky gift unit spend must be positive")
+		}
+	}
+	publicParts, err := luckyDynamicApportionByCapacity(units, total.PublicPoolCoins)
+	if err != nil {
+		return nil, err
+	}
+	remaining := make([]int64, len(units))
+	for index := range units {
+		remaining[index] = units[index] - publicParts[index]
+	}
+	anchorParts, err := luckyDynamicApportionByCapacity(remaining, total.AnchorReturnCoins)
+	if err != nil {
+		return nil, err
+	}
+	parts := make([]domain.StrategyFundSplit, len(units))
+	var publicSum, profitSum, anchorSum int64
+	for index := range units {
+		parts[index] = domain.StrategyFundSplit{
+			PublicPoolCoins:   publicParts[index],
+			AnchorReturnCoins: anchorParts[index],
+			ProfitPoolCoins:   units[index] - publicParts[index] - anchorParts[index],
+		}
+		publicSum += parts[index].PublicPoolCoins
+		profitSum += parts[index].ProfitPoolCoins
+		anchorSum += parts[index].AnchorReturnCoins
+	}
+	if publicSum != total.PublicPoolCoins || profitSum != total.ProfitPoolCoins || anchorSum != total.AnchorReturnCoins {
+		return nil, fmt.Errorf("dynamic lucky gift unit split does not conserve bucket totals")
+	}
+	return parts, nil
+}
+
+// luckyDynamicApportionByCapacity 按每抽金额占比做累计配额，既避免前置抽被贪心塞满，
+// 又保证每份不超过该抽剩余容量。big.Int 只用于防止 total*part 在大额外部请求上溢出 int64。
+func luckyDynamicApportionByCapacity(capacities []int64, partTotal int64) ([]int64, error) {
+	var capacityTotal int64
+	for _, capacity := range capacities {
+		if capacity < 0 || capacityTotal > int64(^uint64(0)>>1)-capacity {
+			return nil, fmt.Errorf("dynamic lucky gift unit capacity is invalid")
+		}
+		capacityTotal += capacity
+	}
+	if partTotal < 0 || partTotal > capacityTotal || capacityTotal <= 0 {
+		return nil, fmt.Errorf("dynamic lucky gift apportioned total exceeds capacity")
+	}
+	parts := make([]int64, len(capacities))
+	denominator := big.NewInt(capacityTotal)
+	var prefix, allocated int64
+	for index, capacity := range capacities {
+		prefix += capacity
+		cumulative := new(big.Int).Mul(big.NewInt(prefix), big.NewInt(partTotal))
+		cumulative.Quo(cumulative, denominator)
+		if !cumulative.IsInt64() {
+			return nil, fmt.Errorf("dynamic lucky gift unit apportion overflow")
+		}
+		parts[index] = cumulative.Int64() - allocated
+		if parts[index] < 0 || parts[index] > capacity {
+			return nil, fmt.Errorf("dynamic lucky gift unit apportion exceeded one draw")
+		}
+		allocated += parts[index]
+	}
+	if allocated != partTotal {
+		return nil, fmt.Errorf("dynamic lucky gift unit apportion lost funds")
+	}
+	return parts, nil
+}
--- a/services/lucky-gift-service/internal/storage/mysql/lucky_gift_dynamic_strategy_test.go
+++ b/services/lucky-gift-service/internal/storage/mysql/lucky_gift_dynamic_strategy_test.go
@ -0,0 +1,116 @@
+package mysql
+
+import (
+	"strings"
+	"testing"
+
+	domain "hyapp/services/lucky-gift-service/internal/domain/luckygift"
+)
+
+func TestDynamicLuckyGiftRequiresExplicitStableDeviceScope(t *testing.T) {
+	for _, value := range []string{"", "   ", strings.Repeat("d", 129)} {
+		if _, err := normalizeLuckyDynamicDeviceID(value); err == nil {
+			t.Fatalf("dynamic_v3 accepted invalid device_id length=%d", len(value))
+		}
+	}
+	if got, err := normalizeLuckyDynamicDeviceID(" device-auth-session-1 "); err != nil || got != "device-auth-session-1" {
+		t.Fatalf("normalize explicit dynamic device scope got=%q err=%v", got, err)
+	}
+}
+
+func TestExternalDeviceScopeUsesCallerBoundDeviceInsteadOfExternalUser(t *testing.T) {
+	firstUser := domain.ExternalDrawCommand{AppCode: "aslan", ExternalUserID: "user-a", DeviceID: "shared-device"}
+	secondUser := domain.ExternalDrawCommand{AppCode: "aslan", ExternalUserID: "user-b", DeviceID: "shared-device"}
+	otherDevice := domain.ExternalDrawCommand{AppCode: "aslan", ExternalUserID: "user-a", DeviceID: "other-device"}
+	firstScope := externalLuckyDeviceID(firstUser.AppCode, firstUser.DeviceID)
+	if secondScope := externalLuckyDeviceID(secondUser.AppCode, secondUser.DeviceID); secondScope != firstScope {
+		// 同物理设备上的多账号必须共享设备日上限，不能继续按 external_user_id 分裂。
+		t.Fatalf("same external device produced different scopes: first=%q second=%q", firstScope, secondScope)
+	}
+	if otherScope := externalLuckyDeviceID(otherDevice.AppCode, otherDevice.DeviceID); otherScope == firstScope {
+		t.Fatalf("different external devices collapsed to one scope: %q", otherScope)
+	}
+
+	legacyA := externalLuckyFixedCompatibleDeviceID(domain.ExternalDrawCommand{AppCode: "aslan", ExternalUserID: "legacy-a"})
+	legacyB := externalLuckyFixedCompatibleDeviceID(domain.ExternalDrawCommand{AppCode: "aslan", ExternalUserID: "legacy-b"})
+	if legacyA == legacyB {
+		t.Fatalf("fixed_v2 legacy external users must retain their prior independent fallback scopes: %q", legacyA)
+	}
+	if historical := externalLuckyDeviceID("aslan", "legacy-a"); legacyA != historical {
+		t.Fatalf("fixed_v2 legacy device scope changed: got=%q historical=%q", legacyA, historical)
+	}
+	if fixedWithNewField := externalLuckyFixedCompatibleDeviceID(firstUser); fixedWithNewField != externalLuckyDeviceID("aslan", "user-a") {
+		t.Fatalf("fixed_v2 unexpectedly interpreted new device_id: %q", fixedWithNewField)
+	}
+}
+
+func TestLuckyDynamicUnitFundSplitsConserveEveryDrawAndBatchBucket(t *testing.T) {
+	tests := []struct {
+		name       string
+		spent      int64
+		drawCount  int32
+		totalSplit domain.StrategyFundSplit
+	}{
+		{
+			name:      "image 100 coins across 99 draws",
+			spent:     100,
+			drawCount: 99,
+			totalSplit: domain.StrategyFundSplit{
+				PublicPoolCoins: 98, ProfitPoolCoins: 1, AnchorReturnCoins: 1,
+			},
+		},
+		{
+			name:      "990 coins keeps configured floor rounding totals",
+			spent:     990,
+			drawCount: 99,
+			totalSplit: domain.StrategyFundSplit{
+				PublicPoolCoins: 970, ProfitPoolCoins: 11, AnchorReturnCoins: 9,
+			},
+		},
+		{
+			name:      "uneven unit prices and configured buckets",
+			spent:     101,
+			drawCount: 6,
+			totalSplit: domain.StrategyFundSplit{
+				PublicPoolCoins: 90, ProfitPoolCoins: 5, AnchorReturnCoins: 6,
+			},
+		},
+	}
+	for _, test := range tests {
+		t.Run(test.name, func(t *testing.T) {
+			parts, err := luckyDynamicUnitFundSplits(test.spent, test.drawCount, test.totalSplit)
+			if err != nil {
+				t.Fatalf("split: %v", err)
+			}
+			if len(parts) != int(test.drawCount) {
+				t.Fatalf("parts=%d want=%d", len(parts), test.drawCount)
+			}
+			var publicTotal, profitTotal, anchorTotal int64
+			for index, part := range parts {
+				unitSpent := luckyDrawUnitSpend(test.spent, test.drawCount, int32(index+1))
+				if got := part.PublicPoolCoins + part.ProfitPoolCoins + part.AnchorReturnCoins; got != unitSpent {
+					t.Fatalf("draw %d buckets=%d want unit spend=%d: %+v", index+1, got, unitSpent, part)
+				}
+				publicTotal += part.PublicPoolCoins
+				profitTotal += part.ProfitPoolCoins
+				anchorTotal += part.AnchorReturnCoins
+			}
+			if publicTotal != test.totalSplit.PublicPoolCoins || profitTotal != test.totalSplit.ProfitPoolCoins || anchorTotal != test.totalSplit.AnchorReturnCoins {
+				t.Fatalf("batch totals=%d/%d/%d want=%+v", publicTotal, profitTotal, anchorTotal, test.totalSplit)
+			}
+		})
+	}
+}
+
+func TestLuckyDynamicFundSplitRejectsWalletAnchorMismatch(t *testing.T) {
+	config := domain.DefaultLuckyGiftStrategyConfig()
+	if split, err := luckyDynamicFundSplit(100, 1, config); err != nil || split != (domain.StrategyFundSplit{PublicPoolCoins: 98, ProfitPoolCoins: 1, AnchorReturnCoins: 1}) {
+		t.Fatalf("matching split=%+v err=%v", split, err)
+	}
+	if _, err := luckyDynamicFundSplit(100, 0, config); err == nil {
+		t.Fatal("missing wallet anchor snapshot was accepted")
+	}
+	if _, err := luckyDynamicFundSplit(100, 10, config); err == nil {
+		t.Fatal("wallet anchor ratio different from rule was accepted")
+	}
+}
--- a/services/lucky-gift-service/internal/storage/mysql/lucky_gift_repository.go
+++ b/services/lucky-gift-service/internal/storage/mysql/lucky_gift_repository.go
@ -68,6 +68,9 @@ type luckyUserState struct {
 	CumulativeWagerCoins int64
 	EquivalentDraws      int64
 	LossStreak           int64
+	// PendingJackpotTokens 是按 UTC 日消费赚取、但允许跨日等待资金的未消费大奖资格。
+	// 它属于 pool/user 生命周期，不能和“当天消费/当天命中次数”一起在午夜静默清零。
+	PendingJackpotTokens int64
 }

 type luckyCandidate struct {
@ -99,8 +102,14 @@ type luckyDrawRecordInput struct {
 	GlobalWindow   luckyRTPWindow
 	GiftWindow     luckyRTPWindow
 	BasePool       luckyPool
-	RewardStatus   string
-	NowMS          int64
+	// StrategyDecision 只在 dynamic_v3 存在；完整权重、动态因子、P/W 重抽和大奖门槛会随 draw fact 固化，
+	// 后台以后修改规则版本也不会让历史结果失去可解释性。
+	StrategyDecision *domain.StrategyDecision
+	FundSplit        domain.StrategyFundSplit
+	UserDayRTP       domain.StrategyRTP
+	User72HourRTP    domain.StrategyRTP
+	RewardStatus     string
+	NowMS            int64
 }

 // luckyBatchDrawState 是批量送礼事务里的聚合账本。
@ -153,14 +162,15 @@ func (r *Repository) CheckLuckyGift(ctx context.Context, cmd domain.CheckCommand
 		return domain.CheckResult{}, err
 	}
 	return domain.CheckResult{
-		Enabled:        config.Enabled,
-		Reason:         luckyEnabledReason(config.Enabled),
-		PoolID:         config.PoolID,
-		GiftID:         cmd.GiftID,
-		GiftPrice:      config.GiftPrice,
-		RuleVersion:    config.RuleVersion,
-		TargetRTPPPM:   config.TargetRTPPPM,
-		ExperiencePool: luckyExperiencePool(state.EquivalentDraws, config),
+		Enabled:         config.Enabled,
+		Reason:          luckyEnabledReason(config.Enabled),
+		PoolID:          config.PoolID,
+		GiftID:          cmd.GiftID,
+		GiftPrice:       config.GiftPrice,
+		RuleVersion:     config.RuleVersion,
+		StrategyVersion: config.StrategyVersion,
+		TargetRTPPPM:    config.TargetRTPPPM,
+		ExperiencePool:  luckyExperiencePool(state.EquivalentDraws, config),
 	}, nil
 }

@ -214,6 +224,13 @@ func (r *Repository) ExecuteLuckyGiftDrawBatch(ctx context.Context, cmds []domai
 }

 func (r *Repository) executeLuckyGiftDrawBatch(ctx context.Context, tx *sql.Tx, cmd domain.DrawCommand, nowMS int64) ([]domain.DrawResult, error) {
+	appCode := appcode.FromContext(ctx)
+	// lucky_draw_records 的唯一键只能拒绝重复写，无法让两个“结果尚不存在”的首次请求都成功：
+	// 两个事务可能同时读到空结果，后到者最终只能撞唯一键回滚。原始 command_id 锁行把首次执行
+	// 串行化；等待者拿到锁后会重新走下方事实探测并完整回读首次结果，绝不重新随机或推进资金状态。
+	if err := r.lockLuckyGiftCommand(ctx, tx, appCode, cmd.CommandID, nowMS); err != nil {
+		return nil, err
+	}
 	// gift_count 是抽奖次数，coin_spent 是本次送礼总扣费；批量路径会把总扣费拆成 N 份单抽金额。
 	// 单抽仍走原来的严谨路径，避免为了批量优化扩大普通送礼的行为面。
 	drawCount := cmd.GiftCount
@ -227,7 +244,6 @@ func (r *Repository) executeLuckyGiftDrawBatch(ctx context.Context, tx *sql.Tx,
 		}
 		return []domain.DrawResult{result}, nil
 	}
-	appCode := appcode.FromContext(ctx)
 	if drawCount > 1 {
 		// 旧实现把整笔送礼作为一次抽奖并使用原始 command_id 落库；批量拆分上线后遇到这类重试必须直接返回旧事实，不能追加子抽奖造成重复返奖。
 		if existing, exists, err := r.getLuckyDrawByCommand(ctx, tx, appCode, cmd.CommandID, true); err != nil || exists {
@ -249,6 +265,24 @@ func (r *Repository) executeLuckyGiftDrawBatch(ctx context.Context, tx *sql.Tx,
 	return r.executeOptimizedLuckyGiftDrawBatch(ctx, tx, cmd, drawCount, nowMS)
 }

+// lockLuckyGiftCommand 为内部钱包已扣费命令创建稳定的事务互斥点。
+// SELECT ... FOR UPDATE 不能锁住尚不存在的 draw record；幂等插入锁行后，InnoDB 会让同一
+// app_code+command_id 的并发事务等待首事务提交或回滚，再由显式 FOR UPDATE 固定后续锁顺序。
+func (r *Repository) lockLuckyGiftCommand(ctx context.Context, tx *sql.Tx, appCode, commandID string, nowMS int64) error {
+	if _, err := tx.ExecContext(ctx, `
+		INSERT INTO lucky_gift_command_locks (app_code, command_id, created_at_ms)
+		VALUES (?, ?, ?)
+		ON DUPLICATE KEY UPDATE created_at_ms = created_at_ms`, appCode, commandID, nowMS,
+	); err != nil {
+		return err
+	}
+	var lockedCommandID string
+	return tx.QueryRowContext(ctx, `
+		SELECT command_id FROM lucky_gift_command_locks
+		WHERE app_code = ? AND command_id = ? FOR UPDATE`, appCode, commandID,
+	).Scan(&lockedCommandID)
+}
+
 // collectLuckyBatchDrawsByCommand 只服务批量命令重试：完整读回已提交的子抽奖，再由外层聚合成响应。
 // 这里不重新计算随机结果，避免同一个扣费命令因重试得到不同中奖结果。
 func (r *Repository) collectLuckyBatchDrawsByCommand(ctx context.Context, tx *sql.Tx, appCode string, cmd domain.DrawCommand, drawCount int32) ([]domain.DrawResult, error) {
@ -283,6 +317,16 @@ func (r *Repository) executeOptimizedLuckyGiftDrawBatch(ctx context.Context, tx
 	if !exists || !ruleConfig.Enabled {
 		return nil, xerr.New(xerr.RuleNotActive, "lucky gift rule is not active")
 	}
+	if ruleConfig.StrategyVersion == domain.StrategyDynamicV3 {
+		// dynamic_v3 必须在同一个事务里推进 P/W 重抽、充值层、大奖资格和六维风控；
+		// 不能先落入 fixed_v2 再在随机后修结果，否则审计和资金状态都会分叉。
+		return r.executeDynamicLuckyGiftDrawBatch(ctx, tx, cmd, drawCount, ruleConfig, luckyDynamicPersistence{}, nowMS)
+	}
+	if cmd.PaidAtMS <= 0 {
+		// fixed_v2 在旧 room/wallet 滚动发布期间允许使用 owner 收到请求的 UTC 时间兼容；
+		// dynamic_v3 在上面的专用路径严格拒绝缺失 wallet paid_at，不能走这条降级。
+		cmd.PaidAtMS = nowMS
+	}
 	baseConfig, err := luckyRuntimeConfigFromRuleConfig(ruleConfig)
 	if err != nil {
 		return nil, err
@ -969,22 +1013,32 @@ func luckyDrawRecordArgs(input luckyDrawRecordInput) []any {
 // luckyDrawRecordSnapshots 保存的是抽中当刻的可解释状态，不要求成为完整候选空间。
 // 这里重点记录命中奖档、被过滤原因、结算窗口和当时池水位，足够定位“为什么本抽是 0/1/高倍”。
 func luckyDrawRecordSnapshots(input luckyDrawRecordInput) (string, string, string) {
-	candidateSnapshot, _ := json.Marshal(map[string]any{
+	candidateData := map[string]any{
 		"base_reward":    input.Candidate.BaseReward,
 		"limited":        input.Limited,
 		"multiplier_ppm": input.Candidate.MultiplierPPM,
 		"weight":         input.Candidate.Weight,
-	})
-	poolSnapshot, _ := json.Marshal(map[string]any{
+	}
+	poolData := map[string]any{
 		"base_balance":       input.BasePool.Balance,
 		"base_reserve_floor": input.BasePool.ReserveFloor,
 		"base_total_in":      input.BasePool.TotalIn,
 		"base_total_out":     input.BasePool.TotalOut,
-	})
-	rtpSnapshot, _ := json.Marshal(map[string]any{
+	}
+	rtpData := map[string]any{
 		"global_window": input.GlobalWindow.WindowIndex,
 		"gift_window":   input.GiftWindow.WindowIndex,
-	})
+	}
+	if input.StrategyDecision != nil {
+		candidateData["dynamic_v3"] = input.StrategyDecision.Trace
+		poolData["fund_split"] = input.FundSplit
+		rtpData["user_day"] = input.UserDayRTP
+		rtpData["user_72h"] = input.User72HourRTP
+		rtpData["global"] = input.StrategyDecision.NextState.GlobalRTP
+	}
+	candidateSnapshot, _ := json.Marshal(candidateData)
+	poolSnapshot, _ := json.Marshal(poolData)
+	rtpSnapshot, _ := json.Marshal(rtpData)
 	return string(candidateSnapshot), string(poolSnapshot), string(rtpSnapshot)
 }

@ -1043,6 +1097,20 @@ func (r *Repository) executeSingleLuckyGiftDraw(ctx context.Context, tx *sql.Tx,
 	if !exists || !ruleConfig.Enabled {
 		return domain.DrawResult{}, xerr.New(xerr.RuleNotActive, "lucky gift rule is not active")
 	}
+	if ruleConfig.StrategyVersion == domain.StrategyDynamicV3 {
+		results, err := r.executeDynamicLuckyGiftDrawBatch(ctx, tx, cmd, 1, ruleConfig, luckyDynamicPersistence{}, nowMS)
+		if err != nil {
+			return domain.DrawResult{}, err
+		}
+		if len(results) != 1 {
+			return domain.DrawResult{}, xerr.New(xerr.Internal, "dynamic lucky gift single draw returned an invalid result count")
+		}
+		return results[0], nil
+	}
+	if cmd.PaidAtMS <= 0 {
+		// 仅历史 fixed_v2 接受缺失 paid_at 的滚动发布兼容；新 dynamic_v3 已在专用路径 fail-close。
+		cmd.PaidAtMS = nowMS
+	}
 	config, err := luckyRuntimeConfigFromRuleConfig(ruleConfig)
 	if err != nil {
 		return domain.DrawResult{}, err
@ -2166,7 +2234,7 @@ func luckyRuntimeConfigFromRuleConfig(ruleConfig domain.RuleConfig) (domain.Conf
 	if referencePrice <= 0 {
 		return domain.Config{}, xerr.New(xerr.InvalidArgument, "lucky gift reference price must be positive")
 	}
-	// v2 用金币流水定义结算窗口，旧运行窗口仍以抽数推进；这里按参考价格折算成“等价抽数”，实际每抽会在 withCurrentWager 中继续按真实 coin_spent 累计。
+	// fixed_v2 历史窗口仍按参考价格折算成“等价抽数”；dynamic_v3 另行读取 SettlementWindowWager，按真实 coin_spent 滚动。
 	windowDraws := luckyCeilDiv(ruleConfig.SettlementWindowWager, referencePrice)
 	if windowDraws <= 0 {
 		windowDraws = 1
@ -2178,27 +2246,60 @@ func luckyRuntimeConfigFromRuleConfig(ruleConfig domain.RuleConfig) (domain.Conf
 	// 单池模型把旧 platform/room/gift 三层责任池合并为 app+pool_id 一口基础池；
 	// 初始水位和安全水位使用旧三池默认值求和，保证新规则上线后高倍奖支付能力不会因模型收敛而突然降低。
 	config := domain.Config{
-		AppCode:                  ruleConfig.AppCode,
-		GiftID:                   poolID,
-		PoolID:                   poolID,
-		Enabled:                  ruleConfig.Enabled,
-		RuleVersion:              ruleConfig.RuleVersion,
-		GiftPrice:                referencePrice,
-		TargetRTPPPM:             ruleConfig.TargetRTPPPM,
-		PoolRatePPM:              ruleConfig.PoolRatePPM,
-		ControlBandPPM:           ruleConfig.ControlBandPPM,
-		GlobalWindowDraws:        windowDraws,
-		GiftWindowDraws:          windowDraws,
-		NoviceMaxEquivalentDraws: ruleConfig.NoviceMaxEquivalentDraws,
-		NormalMaxEquivalentDraws: ruleConfig.NormalMaxEquivalentDraws,
-		HighMultiplier:           10,
-		HighWaterPoolMultiple:    2,
-		InitialBasePool:          referencePrice * (950 + 500 + 2_375),
-		BasePoolReserve:          referencePrice * (100 + 10 + 100),
-		Tiers:                    tiers,
-		UpdatedByAdminID:         ruleConfig.CreatedByAdminID,
-		CreatedAtMS:              ruleConfig.CreatedAtMS,
-		UpdatedAtMS:              ruleConfig.CreatedAtMS,
+		AppCode:                    ruleConfig.AppCode,
+		GiftID:                     poolID,
+		PoolID:                     poolID,
+		Enabled:                    ruleConfig.Enabled,
+		RuleVersion:                ruleConfig.RuleVersion,
+		StrategyVersion:            ruleConfig.StrategyVersion,
+		GiftPrice:                  referencePrice,
+		TargetRTPPPM:               ruleConfig.TargetRTPPPM,
+		PoolRatePPM:                ruleConfig.PoolRatePPM,
+		ProfitRatePPM:              ruleConfig.ProfitRatePPM,
+		AnchorRatePPM:              ruleConfig.AnchorRatePPM,
+		ControlBandPPM:             ruleConfig.ControlBandPPM,
+		SettlementWindowWager:      ruleConfig.SettlementWindowWager,
+		GlobalWindowDraws:          windowDraws,
+		GiftWindowDraws:            windowDraws,
+		NoviceMaxEquivalentDraws:   ruleConfig.NoviceMaxEquivalentDraws,
+		NormalMaxEquivalentDraws:   ruleConfig.NormalMaxEquivalentDraws,
+		HighMultiplier:             10,
+		HighWaterPoolMultiple:      2,
+		InitialBasePool:            referencePrice * (950 + 500 + 2_375),
+		BasePoolReserve:            referencePrice * (100 + 10 + 100),
+		InitialPoolCoins:           ruleConfig.InitialPoolCoins,
+		LossStreakGuarantee:        ruleConfig.LossStreakGuarantee,
+		LowWatermarkCoins:          ruleConfig.LowWatermarkCoins,
+		LowWaterNonzeroFactorPPM:   ruleConfig.LowWaterNonzeroFactorPPM,
+		HighWatermarkCoins:         ruleConfig.HighWatermarkCoins,
+		HighWaterNonzeroFactorPPM:  ruleConfig.HighWaterNonzeroFactorPPM,
+		RechargeBoostWindowMS:      ruleConfig.RechargeBoostWindowMS,
+		RechargeBoostFactorPPM:     ruleConfig.RechargeBoostFactorPPM,
+		JackpotMultiplierPPMs:      append([]int64(nil), ruleConfig.JackpotMultiplierPPMs...),
+		JackpotGlobalRTPMaxPPM:     ruleConfig.JackpotGlobalRTPMaxPPM,
+		JackpotUserDayRTPMaxPPM:    ruleConfig.JackpotUserDayRTPMaxPPM,
+		JackpotUser72hRTPMaxPPM:    ruleConfig.JackpotUser72hRTPMaxPPM,
+		JackpotSpendThresholdCoins: ruleConfig.JackpotSpendThresholdCoins,
+		MaxJackpotHitsPerUserDay:   ruleConfig.MaxJackpotHitsPerUserDay,
+		MaxSinglePayout:            ruleConfig.MaxSinglePayout,
+		UserHourlyPayoutCap:        ruleConfig.UserHourlyPayoutCap,
+		UserDailyPayoutCap:         ruleConfig.UserDailyPayoutCap,
+		DeviceDailyPayoutCap:       ruleConfig.DeviceDailyPayoutCap,
+		RoomHourlyPayoutCap:        ruleConfig.RoomHourlyPayoutCap,
+		AnchorDailyPayoutCap:       ruleConfig.AnchorDailyPayoutCap,
+		Tiers:                      tiers,
+		Stages:                     ruleConfig.Stages,
+		UpdatedByAdminID:           ruleConfig.CreatedByAdminID,
+		CreatedAtMS:                ruleConfig.CreatedAtMS,
+		UpdatedAtMS:                ruleConfig.CreatedAtMS,
+	}
+	if config.StrategyVersion == "" {
+		config.StrategyVersion = domain.StrategyFixedV2
+	}
+	if config.StrategyVersion == domain.StrategyDynamicV3 {
+		// V3 的冷启动资金是绝对金币值且 P=W 可以支付到 0；旧版按礼物参考价推导的 reserve 不能继续套用。
+		config.InitialBasePool = config.InitialPoolCoins
+		config.BasePoolReserve = 0
 	}
 	config.MultiplierPPMs = luckyMultiplierPPMsFromTiers(config.Tiers, config.GiftPrice)
 	return config, nil
@ -2256,11 +2357,11 @@ func luckyCeilDiv(value, divisor int64) int64 {
 func (r *Repository) getLuckyUserState(ctx context.Context, appCode string, userID int64, giftID string) (luckyUserState, error) {
 	var state luckyUserState
 	err := r.db.QueryRowContext(ctx, `
-		SELECT paid_draws, cumulative_wager_coins, equivalent_draws, loss_streak
+		SELECT paid_draws, cumulative_wager_coins, equivalent_draws, loss_streak, pending_jackpot_tokens
 		FROM lucky_user_states
 		WHERE app_code = ? AND user_id = ? AND gift_id = ?`,
 		appCode, userID, giftID,
-	).Scan(&state.PaidDraws, &state.CumulativeWagerCoins, &state.EquivalentDraws, &state.LossStreak)
+	).Scan(&state.PaidDraws, &state.CumulativeWagerCoins, &state.EquivalentDraws, &state.LossStreak, &state.PendingJackpotTokens)
 	if errors.Is(err, sql.ErrNoRows) {
 		return luckyUserState{}, nil
 	}
@ -2268,29 +2369,27 @@ func (r *Repository) getLuckyUserState(ctx context.Context, appCode string, user
 }

 func (r *Repository) getLuckyUserStateForUpdate(ctx context.Context, tx *sql.Tx, appCode string, userID int64, giftID string, nowMS int64) (luckyUserState, error) {
-	var state luckyUserState
-	err := tx.QueryRowContext(ctx, `
-		SELECT paid_draws, cumulative_wager_coins, equivalent_draws, loss_streak
-		FROM lucky_user_states
-		WHERE app_code = ? AND user_id = ? AND gift_id = ?
-		FOR UPDATE`,
-		appCode, userID, giftID,
-	).Scan(&state.PaidDraws, &state.CumulativeWagerCoins, &state.EquivalentDraws, &state.LossStreak)
-	if err == nil {
-		return state, nil
-	}
-	if !errors.Is(err, sql.ErrNoRows) {
-		return luckyUserState{}, err
-	}
+	// 先用幂等 INSERT 建行再 SELECT FOR UPDATE；两个首次抽奖并发时，唯一键会让第二个事务等待，
+	// 而不是两边都先读到 no rows 后由其中一个以 duplicate key 失败。
 	if _, err := tx.ExecContext(ctx, `
 		INSERT INTO lucky_user_states (
-			app_code, user_id, gift_id, paid_draws, cumulative_wager_coins, equivalent_draws, loss_streak, created_at_ms, updated_at_ms
-		) VALUES (?, ?, ?, 0, 0, 0, 0, ?, ?)`,
+			app_code, user_id, gift_id, paid_draws, cumulative_wager_coins, equivalent_draws, loss_streak,
+			pending_jackpot_tokens, created_at_ms, updated_at_ms
+		) VALUES (?, ?, ?, 0, 0, 0, 0, 0, ?, ?)
+		ON DUPLICATE KEY UPDATE updated_at_ms = updated_at_ms`,
 		appCode, userID, giftID, nowMS, nowMS,
 	); err != nil {
 		return luckyUserState{}, err
 	}
-	return luckyUserState{}, nil
+	var state luckyUserState
+	err := tx.QueryRowContext(ctx, `
+		SELECT paid_draws, cumulative_wager_coins, equivalent_draws, loss_streak, pending_jackpot_tokens
+		FROM lucky_user_states
+		WHERE app_code = ? AND user_id = ? AND gift_id = ?
+		FOR UPDATE`,
+		appCode, userID, giftID,
+	).Scan(&state.PaidDraws, &state.CumulativeWagerCoins, &state.EquivalentDraws, &state.LossStreak, &state.PendingJackpotTokens)
+	return state, err
 }

 func (r *Repository) getOpenLuckyRTPWindow(ctx context.Context, tx *sql.Tx, appCode, scopeType, scopeID string, windowDraws, targetPPM, nowMS int64) (luckyRTPWindow, error) {
@ -2317,6 +2416,35 @@ func (r *Repository) getOpenLuckyRTPWindow(ctx context.Context, tx *sql.Tx, appC
 	return r.createLuckyRTPWindow(ctx, tx, appCode, scopeType, scopeID, window.WindowIndex+1, window.CarryPPM, windowDraws, targetPPM, nowMS)
 }

+// getOpenLuckyDynamicRTPWindow 只服务 dynamic_v3：不可变 rule_version scope 已经固定真实流水阈值，
+// 因此窗口是否结束只看 wager_coins。control_window_draws 继续保存 fixed_v2 的兼容观测值，不能参与 V3 滚动判断。
+func (r *Repository) getOpenLuckyDynamicRTPWindow(ctx context.Context, tx *sql.Tx, appCode, scopeType, scopeID string, windowWager, legacyWindowDraws, targetPPM, nowMS int64) (luckyRTPWindow, error) {
+	if windowWager <= 0 {
+		return luckyRTPWindow{}, xerr.New(xerr.InvalidArgument, "dynamic lucky gift settlement window wager must be positive")
+	}
+	window, exists, err := r.getLatestLuckyRTPWindow(ctx, tx, appCode, scopeType, scopeID, true)
+	if err != nil {
+		return luckyRTPWindow{}, err
+	}
+	if !exists {
+		return r.createLuckyRTPWindow(ctx, tx, appCode, scopeType, scopeID, 1, 0, legacyWindowDraws, targetPPM, nowMS)
+	}
+	if window.Status == "open" && window.WagerCoins < windowWager {
+		return window, nil
+	}
+	if window.Status == "open" {
+		if _, err := tx.ExecContext(ctx, `
+			UPDATE lucky_rtp_windows
+			SET status = 'closed', updated_at_ms = ?
+			WHERE app_code = ? AND scope_type = ? AND scope_id = ? AND window_index = ?`,
+			nowMS, appCode, scopeType, scopeID, window.WindowIndex,
+		); err != nil {
+			return luckyRTPWindow{}, err
+		}
+	}
+	return r.createLuckyRTPWindow(ctx, tx, appCode, scopeType, scopeID, window.WindowIndex+1, window.CarryPPM, legacyWindowDraws, targetPPM, nowMS)
+}
+
 func (r *Repository) getLatestLuckyRTPWindow(ctx context.Context, tx *sql.Tx, appCode, scopeType, scopeID string, forUpdate bool) (luckyRTPWindow, bool, error) {
 	lockSQL := ""
 	if forUpdate {
@ -2343,51 +2471,51 @@ func (r *Repository) getLatestLuckyRTPWindow(ctx context.Context, tx *sql.Tx, ap
 }

 func (r *Repository) createLuckyRTPWindow(ctx context.Context, tx *sql.Tx, appCode, scopeType, scopeID string, index, carry, windowDraws, targetPPM, nowMS int64) (luckyRTPWindow, error) {
-	window := luckyRTPWindow{
-		ScopeType:    scopeType,
-		ScopeID:      scopeID,
-		WindowIndex:  index,
-		TargetRTPPPM: targetPPM,
-		ControlDraws: windowDraws,
-		CarryPPM:     carry,
-		Status:       "open",
-	}
+	// 同一 scope 的首次请求可能并发创建同一 window；幂等 INSERT 先以唯一键串行化，
+	// 随后必须重新读取实际行，不能在 duplicate 时返回一个全 0 的本地假快照覆盖已提交进度。
 	if _, err := tx.ExecContext(ctx, `
 		INSERT INTO lucky_rtp_windows (
 			app_code, scope_type, scope_id, window_index, target_rtp_ppm, control_window_draws,
 			paid_draws, wager_coins, target_payout_coins, actual_base_payout_coins, carry_ppm, status, created_at_ms, updated_at_ms
-		) VALUES (?, ?, ?, ?, ?, ?, 0, 0, 0, 0, ?, 'open', ?, ?)`,
-		appCode, scopeType, scopeID, index, targetPPM, windowDraws, window.CarryPPM, nowMS, nowMS,
+		) VALUES (?, ?, ?, ?, ?, ?, 0, 0, 0, 0, ?, 'open', ?, ?)
+		ON DUPLICATE KEY UPDATE updated_at_ms = updated_at_ms`,
+		appCode, scopeType, scopeID, index, targetPPM, windowDraws, carry, nowMS, nowMS,
 	); err != nil {
 		return luckyRTPWindow{}, err
 	}
-	return window, nil
+	var window luckyRTPWindow
+	err := tx.QueryRowContext(ctx, `
+		SELECT scope_type, scope_id, window_index, target_rtp_ppm, control_window_draws,
+		       paid_draws, wager_coins, target_payout_coins, actual_base_payout_coins, carry_ppm, status
+		FROM lucky_rtp_windows
+		WHERE app_code = ? AND scope_type = ? AND scope_id = ? AND window_index = ?
+		FOR UPDATE`, appCode, scopeType, scopeID, index,
+	).Scan(&window.ScopeType, &window.ScopeID, &window.WindowIndex, &window.TargetRTPPPM, &window.ControlDraws,
+		&window.PaidDraws, &window.WagerCoins, &window.TargetPayoutCoins, &window.ActualPayoutCoins, &window.CarryPPM, &window.Status)
+	return window, err
 }

 func (r *Repository) getOrCreateLuckyPool(ctx context.Context, tx *sql.Tx, appCode, scopeType, scopeID string, initialBalance, reserveFloor, nowMS int64) (luckyPool, error) {
-	row := tx.QueryRowContext(ctx, `
+	// 初始注资只能由唯一键胜出的事务写一次；第二个首次请求等待后读取真实余额，不能重复 seed。
+	if _, err := tx.ExecContext(ctx, `
+		INSERT INTO lucky_pools (
+			app_code, scope_type, scope_id, balance, reserve_floor, total_in, total_out,
+			profit_total, anchor_income_total, initial_seed_total, created_at_ms, updated_at_ms
+		) VALUES (?, ?, ?, ?, ?, 0, 0, 0, 0, ?, ?, ?)
+		ON DUPLICATE KEY UPDATE updated_at_ms = updated_at_ms`,
+		appCode, scopeType, scopeID, initialBalance, reserveFloor, initialBalance, nowMS, nowMS,
+	); err != nil {
+		return luckyPool{}, err
+	}
+	var pool luckyPool
+	err := tx.QueryRowContext(ctx, `
 		SELECT scope_type, scope_id, balance, reserve_floor, total_in, total_out
 		FROM lucky_pools
 		WHERE app_code = ? AND scope_type = ? AND scope_id = ?
 		FOR UPDATE`,
 		appCode, scopeType, scopeID,
-	)
-	var pool luckyPool
-	if err := row.Scan(&pool.ScopeType, &pool.ScopeID, &pool.Balance, &pool.ReserveFloor, &pool.TotalIn, &pool.TotalOut); err == nil {
-		return pool, nil
-	} else if !errors.Is(err, sql.ErrNoRows) {
-		return luckyPool{}, err
-	}
-	pool = luckyPool{ScopeType: scopeType, ScopeID: scopeID, Balance: initialBalance, ReserveFloor: reserveFloor}
-	if _, err := tx.ExecContext(ctx, `
-		INSERT INTO lucky_pools (
-			app_code, scope_type, scope_id, balance, reserve_floor, total_in, total_out, created_at_ms, updated_at_ms
-		) VALUES (?, ?, ?, ?, ?, 0, 0, ?, ?)`,
-		appCode, scopeType, scopeID, initialBalance, reserveFloor, nowMS, nowMS,
-	); err != nil {
-		return luckyPool{}, err
-	}
-	return pool, nil
+	).Scan(&pool.ScopeType, &pool.ScopeID, &pool.Balance, &pool.ReserveFloor, &pool.TotalIn, &pool.TotalOut)
+	return pool, err
 }

 func (r *Repository) creditLuckyBasePool(ctx context.Context, tx *sql.Tx, appCode string, config domain.Config, spent int64, pool *luckyPool, nowMS int64) error {
--- a/services/lucky-gift-service/internal/storage/mysql/lucky_gift_rule_config_repository.go
+++ b/services/lucky-gift-service/internal/storage/mysql/lucky_gift_rule_config_repository.go
@ -3,7 +3,9 @@ package mysql
 import (
 	"context"
 	"database/sql"
+	"encoding/json"
 	"errors"
+	"fmt"
 	"strings"

 	"hyapp/pkg/appcode"
@ -16,7 +18,7 @@ type luckyRuleQueryer interface {
 	QueryRowContext(context.Context, string, ...any) *sql.Row
 }

-// GetLuckyGiftRuleConfig 读取指定奖池最新 v2 规则版本；旧抽奖运行表不会参与后台配置读取。
+// GetLuckyGiftRuleConfig 读取指定奖池最新不可变规则版本；旧抽奖运行表不会参与后台配置读取。
 func (r *Repository) GetLuckyGiftRuleConfig(ctx context.Context, poolID string) (domain.RuleConfig, bool, error) {
 	if r == nil || r.db == nil {
 		return domain.RuleConfig{}, false, xerr.New(xerr.Unavailable, "mysql repository is not configured")
@ -24,7 +26,7 @@ func (r *Repository) GetLuckyGiftRuleConfig(ctx context.Context, poolID string)
 	return r.getLuckyGiftRuleConfig(ctx, r.db, appcode.FromContext(ctx), luckyPoolID(poolID), false)
 }

-// PublishLuckyGiftRuleConfig 只新增不可变版本，不覆盖历史配置；后续 v2 抽奖引擎按版本读取快照。
+// PublishLuckyGiftRuleConfig 只新增不可变版本，不覆盖历史配置；运行引擎按 strategy_version 和 rule_version 读取完整快照。
 func (r *Repository) PublishLuckyGiftRuleConfig(ctx context.Context, config domain.RuleConfig, nowMS int64) (domain.RuleConfig, error) {
 	if r == nil || r.db == nil {
 		return domain.RuleConfig{}, xerr.New(xerr.Unavailable, "mysql repository is not configured")
@ -38,6 +40,18 @@ func (r *Repository) PublishLuckyGiftRuleConfig(ctx context.Context, config doma
 	appCode := appcode.FromContext(ctx)
 	config.AppCode = appCode
 	config.PoolID = luckyPoolID(config.PoolID)
+	config.StrategyVersion = strings.ToLower(strings.TrimSpace(config.StrategyVersion))
+	if config.StrategyVersion == "" {
+		// 升级前的发布请求没有 strategy_version；存储边界再次兜底为 fixed_v2，避免绕过 service 的调用写成动态规则。
+		config.StrategyVersion = domain.StrategyFixedV2
+	}
+	if config.JackpotMultiplierPPMs == nil {
+		config.JackpotMultiplierPPMs = []int64{}
+	}
+	jackpotMultiplierPPMsJSON, err := json.Marshal(config.JackpotMultiplierPPMs)
+	if err != nil {
+		return domain.RuleConfig{}, fmt.Errorf("marshal lucky gift jackpot multipliers: %w", err)
+	}
 	config.RuleVersion = 1
 	config.CreatedAtMS = nowMS
 	if config.EffectiveFromMS <= 0 {
@ -61,15 +75,33 @@ func (r *Repository) PublishLuckyGiftRuleConfig(ctx context.Context, config doma
 	}
 	if _, err := tx.ExecContext(ctx, `
 		INSERT INTO lucky_gift_rule_versions (
-			app_code, pool_id, rule_version, enabled, target_rtp_ppm, pool_rate_ppm,
+			app_code, pool_id, rule_version, enabled, strategy_version, target_rtp_ppm, pool_rate_ppm,
+			profit_rate_ppm, anchor_rate_ppm,
 			settlement_window_wager, control_band_ppm, gift_price_reference,
 			novice_max_equivalent_draws, normal_max_equivalent_draws,
-			effective_from_ms, created_by_admin_id, created_at_ms
-		) VALUES (?,?,?,?,?,?,?,?,?,?,?,?,?,?)`,
-		config.AppCode, config.PoolID, config.RuleVersion, config.Enabled, config.TargetRTPPPM, config.PoolRatePPM,
+			effective_from_ms, created_by_admin_id, created_at_ms,
+			initial_pool_coins, loss_streak_guarantee,
+			low_watermark_coins, low_water_nonzero_factor_ppm,
+			high_watermark_coins, high_water_nonzero_factor_ppm,
+			recharge_boost_window_ms, recharge_boost_factor_ppm, jackpot_multiplier_ppms,
+			jackpot_global_rtp_max_ppm, jackpot_user_day_rtp_max_ppm, jackpot_user_72h_rtp_max_ppm,
+			jackpot_spend_threshold_coins, max_jackpot_hits_per_user_day,
+			max_single_payout, user_hourly_payout_cap, user_daily_payout_cap,
+			device_daily_payout_cap, room_hourly_payout_cap, anchor_daily_payout_cap
+		) VALUES (?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?)`,
+		config.AppCode, config.PoolID, config.RuleVersion, config.Enabled, config.StrategyVersion, config.TargetRTPPPM, config.PoolRatePPM,
+		config.ProfitRatePPM, config.AnchorRatePPM,
 		config.SettlementWindowWager, config.ControlBandPPM, config.GiftPriceReference,
 		config.NoviceMaxEquivalentDraws, config.NormalMaxEquivalentDraws,
 		config.EffectiveFromMS, config.CreatedByAdminID, config.CreatedAtMS,
+		config.InitialPoolCoins, config.LossStreakGuarantee,
+		config.LowWatermarkCoins, config.LowWaterNonzeroFactorPPM,
+		config.HighWatermarkCoins, config.HighWaterNonzeroFactorPPM,
+		config.RechargeBoostWindowMS, config.RechargeBoostFactorPPM, jackpotMultiplierPPMsJSON,
+		config.JackpotGlobalRTPMaxPPM, config.JackpotUserDayRTPMaxPPM, config.JackpotUser72hRTPMaxPPM,
+		config.JackpotSpendThresholdCoins, config.MaxJackpotHitsPerUserDay,
+		config.MaxSinglePayout, config.UserHourlyPayoutCap, config.UserDailyPayoutCap,
+		config.DeviceDailyPayoutCap, config.RoomHourlyPayoutCap, config.AnchorDailyPayoutCap,
 	); err != nil {
 		return domain.RuleConfig{}, err
 	}
@ -77,10 +109,12 @@ func (r *Repository) PublishLuckyGiftRuleConfig(ctx context.Context, config doma
 		for _, tier := range stage.Tiers {
 			if _, err := tx.ExecContext(ctx, `
 				INSERT INTO lucky_gift_stage_tiers (
-					app_code, pool_id, rule_version, stage, tier_id, multiplier_ppm, base_weight_ppm,
+					app_code, pool_id, rule_version, stage, min_recharge_7d_coins, min_recharge_30d_coins,
+					tier_id, multiplier_ppm, base_weight_ppm,
 					high_water_only, enabled
-				) VALUES (?,?,?,?,?,?,?,?,?)`,
-				config.AppCode, config.PoolID, config.RuleVersion, tier.Stage, tier.TierID, tier.MultiplierPPM, tier.BaseWeightPPM,
+				) VALUES (?,?,?,?,?,?,?,?,?,?,?)`,
+				config.AppCode, config.PoolID, config.RuleVersion, tier.Stage, stage.MinRecharge7DCoins, stage.MinRecharge30DCoins,
+				tier.TierID, tier.MultiplierPPM, tier.BaseWeightPPM,
 				tier.HighWaterOnly, tier.Enabled,
 			); err != nil {
 				return domain.RuleConfig{}, err
@ -93,7 +127,7 @@ func (r *Repository) PublishLuckyGiftRuleConfig(ctx context.Context, config doma
 	return config, nil
 }

-// ListLuckyGiftRuleConfigs 返回每个奖池的最新 v2 规则版本，用于后台奖池列表。
+// ListLuckyGiftRuleConfigs 返回每个奖池的最新规则版本，用于后台奖池列表。
 func (r *Repository) ListLuckyGiftRuleConfigs(ctx context.Context, appCode string) ([]domain.RuleConfig, error) {
 	if r == nil || r.db == nil {
 		return nil, xerr.New(xerr.Unavailable, "mysql repository is not configured")
@ -105,10 +139,19 @@ func (r *Repository) ListLuckyGiftRuleConfigs(ctx context.Context, appCode strin
 		args = append(args, appcode.Normalize(appCode))
 	}
 	rows, err := r.db.QueryContext(ctx, `
-		SELECT v.app_code, v.pool_id, v.rule_version, v.enabled, v.target_rtp_ppm, v.pool_rate_ppm,
+		SELECT v.app_code, v.pool_id, v.rule_version, v.enabled, v.strategy_version, v.target_rtp_ppm, v.pool_rate_ppm,
+		       v.profit_rate_ppm, v.anchor_rate_ppm,
 		       v.settlement_window_wager, v.control_band_ppm, v.gift_price_reference,
 		       v.novice_max_equivalent_draws, v.normal_max_equivalent_draws,
-		       v.effective_from_ms, v.created_by_admin_id, v.created_at_ms
+		       v.effective_from_ms, v.created_by_admin_id, v.created_at_ms,
+		       v.initial_pool_coins, v.loss_streak_guarantee,
+		       v.low_watermark_coins, v.low_water_nonzero_factor_ppm,
+		       v.high_watermark_coins, v.high_water_nonzero_factor_ppm,
+		       v.recharge_boost_window_ms, v.recharge_boost_factor_ppm, v.jackpot_multiplier_ppms,
+		       v.jackpot_global_rtp_max_ppm, v.jackpot_user_day_rtp_max_ppm, v.jackpot_user_72h_rtp_max_ppm,
+		       v.jackpot_spend_threshold_coins, v.max_jackpot_hits_per_user_day,
+		       v.max_single_payout, v.user_hourly_payout_cap, v.user_daily_payout_cap,
+		       v.device_daily_payout_cap, v.room_hourly_payout_cap, v.anchor_daily_payout_cap
 		FROM lucky_gift_rule_versions v
 		INNER JOIN (
 			SELECT app_code, pool_id, MAX(rule_version) AS rule_version
@ -148,10 +191,19 @@ func (r *Repository) getLuckyGiftRuleConfig(ctx context.Context, q luckyRuleQuer
 		lockSQL = " FOR UPDATE"
 	}
 	row := q.QueryRowContext(ctx, `
-		SELECT app_code, pool_id, rule_version, enabled, target_rtp_ppm, pool_rate_ppm,
+		SELECT app_code, pool_id, rule_version, enabled, strategy_version, target_rtp_ppm, pool_rate_ppm,
+		       profit_rate_ppm, anchor_rate_ppm,
 		       settlement_window_wager, control_band_ppm, gift_price_reference,
 		       novice_max_equivalent_draws, normal_max_equivalent_draws,
-		       effective_from_ms, created_by_admin_id, created_at_ms
+		       effective_from_ms, created_by_admin_id, created_at_ms,
+		       initial_pool_coins, loss_streak_guarantee,
+		       low_watermark_coins, low_water_nonzero_factor_ppm,
+		       high_watermark_coins, high_water_nonzero_factor_ppm,
+		       recharge_boost_window_ms, recharge_boost_factor_ppm, jackpot_multiplier_ppms,
+		       jackpot_global_rtp_max_ppm, jackpot_user_day_rtp_max_ppm, jackpot_user_72h_rtp_max_ppm,
+		       jackpot_spend_threshold_coins, max_jackpot_hits_per_user_day,
+		       max_single_payout, user_hourly_payout_cap, user_daily_payout_cap,
+		       device_daily_payout_cap, room_hourly_payout_cap, anchor_daily_payout_cap
 		FROM lucky_gift_rule_versions
 		WHERE app_code = ? AND pool_id = ?
 		ORDER BY rule_version DESC
@ -175,7 +227,8 @@ func (r *Repository) getLuckyGiftRuleConfig(ctx context.Context, q luckyRuleQuer

 func (r *Repository) getLuckyGiftRuleStages(ctx context.Context, q luckyRuleQueryer, appCode string, poolID string, ruleVersion int64) ([]domain.RuleStage, error) {
 	rows, err := q.QueryContext(ctx, `
-		SELECT stage, tier_id, multiplier_ppm, base_weight_ppm, high_water_only, enabled
+		SELECT stage, min_recharge_7d_coins, min_recharge_30d_coins,
+		       tier_id, multiplier_ppm, base_weight_ppm, high_water_only, enabled
 		FROM lucky_gift_stage_tiers
 		WHERE app_code = ? AND pool_id = ? AND rule_version = ?
 		ORDER BY FIELD(stage, 'novice', 'normal', 'advanced'), multiplier_ppm ASC, tier_id ASC`,
@ -189,14 +242,31 @@ func (r *Repository) getLuckyGiftRuleStages(ctx context.Context, q luckyRuleQuer
 	stages := make([]domain.RuleStage, 0, 3)
 	for rows.Next() {
 		var tier domain.RuleTier
-		if err := rows.Scan(&tier.Stage, &tier.TierID, &tier.MultiplierPPM, &tier.BaseWeightPPM, &tier.HighWaterOnly, &tier.Enabled); err != nil {
+		var minRecharge7DCoins, minRecharge30DCoins int64
+		if err := rows.Scan(
+			&tier.Stage,
+			&minRecharge7DCoins,
+			&minRecharge30DCoins,
+			&tier.TierID,
+			&tier.MultiplierPPM,
+			&tier.BaseWeightPPM,
+			&tier.HighWaterOnly,
+			&tier.Enabled,
+		); err != nil {
 			return nil, err
 		}
 		index, exists := stageIndex[tier.Stage]
 		if !exists {
 			index = len(stages)
 			stageIndex[tier.Stage] = index
-			stages = append(stages, domain.RuleStage{Stage: tier.Stage})
+			stages = append(stages, domain.RuleStage{
+				Stage:               tier.Stage,
+				MinRecharge7DCoins:  minRecharge7DCoins,
+				MinRecharge30DCoins: minRecharge30DCoins,
+			})
+		} else if stages[index].MinRecharge7DCoins != minRecharge7DCoins || stages[index].MinRecharge30DCoins != minRecharge30DCoins {
+			// 阈值按 stage 定义但为兼容旧表结构随 tier 冗余保存；同阶段不一致表示数据已被绕过发布入口篡改，不能静默选第一行。
+			return nil, fmt.Errorf("inconsistent recharge thresholds for lucky gift stage %s", tier.Stage)
 		}
 		stages[index].Tiers = append(stages[index].Tiers, tier)
 	}
@ -205,13 +275,17 @@ func (r *Repository) getLuckyGiftRuleStages(ctx context.Context, q luckyRuleQuer

 func scanLuckyGiftRuleConfig(scanner luckyScanner) (domain.RuleConfig, error) {
 	var config domain.RuleConfig
+	var jackpotMultiplierPPMsJSON []byte
 	if err := scanner.Scan(
 		&config.AppCode,
 		&config.PoolID,
 		&config.RuleVersion,
 		&config.Enabled,
+		&config.StrategyVersion,
 		&config.TargetRTPPPM,
 		&config.PoolRatePPM,
+		&config.ProfitRatePPM,
+		&config.AnchorRatePPM,
 		&config.SettlementWindowWager,
 		&config.ControlBandPPM,
 		&config.GiftPriceReference,
@ -220,8 +294,40 @@ func scanLuckyGiftRuleConfig(scanner luckyScanner) (domain.RuleConfig, error) {
 		&config.EffectiveFromMS,
 		&config.CreatedByAdminID,
 		&config.CreatedAtMS,
+		&config.InitialPoolCoins,
+		&config.LossStreakGuarantee,
+		&config.LowWatermarkCoins,
+		&config.LowWaterNonzeroFactorPPM,
+		&config.HighWatermarkCoins,
+		&config.HighWaterNonzeroFactorPPM,
+		&config.RechargeBoostWindowMS,
+		&config.RechargeBoostFactorPPM,
+		&jackpotMultiplierPPMsJSON,
+		&config.JackpotGlobalRTPMaxPPM,
+		&config.JackpotUserDayRTPMaxPPM,
+		&config.JackpotUser72hRTPMaxPPM,
+		&config.JackpotSpendThresholdCoins,
+		&config.MaxJackpotHitsPerUserDay,
+		&config.MaxSinglePayout,
+		&config.UserHourlyPayoutCap,
+		&config.UserDailyPayoutCap,
+		&config.DeviceDailyPayoutCap,
+		&config.RoomHourlyPayoutCap,
+		&config.AnchorDailyPayoutCap,
 	); err != nil {
 		return domain.RuleConfig{}, err
 	}
+	config.StrategyVersion = strings.ToLower(strings.TrimSpace(config.StrategyVersion))
+	if config.StrategyVersion == "" {
+		config.StrategyVersion = domain.StrategyFixedV2
+	}
+	if len(jackpotMultiplierPPMsJSON) > 0 {
+		if err := json.Unmarshal(jackpotMultiplierPPMsJSON, &config.JackpotMultiplierPPMs); err != nil {
+			return domain.RuleConfig{}, fmt.Errorf("decode lucky gift jackpot multipliers: %w", err)
+		}
+	}
+	if config.JackpotMultiplierPPMs == nil {
+		config.JackpotMultiplierPPMs = []int64{}
+	}
 	return config, nil
 }
--- a/services/lucky-gift-service/internal/storage/mysql/lucky_gift_rule_config_repository_test.go
+++ b/services/lucky-gift-service/internal/storage/mysql/lucky_gift_rule_config_repository_test.go
@ -45,6 +45,9 @@ func TestPublishLuckyGiftRuleConfigPersistsVersionsAndTiers(t *testing.T) {
 	if published.RuleVersion != 1 {
 		t.Fatalf("first publish rule_version = %d, want 1", published.RuleVersion)
 	}
+	if published.StrategyVersion != domain.StrategyFixedV2 {
+		t.Fatalf("legacy request strategy = %q, want fixed_v2", published.StrategyVersion)
+	}

 	// 版本必须只增不改：同奖池再次发布要拿到 v2，且两版规则和奖档都能按最新版本读回。
 	again, err := repo.PublishLuckyGiftRuleConfig(ctx, config, 1_700_000_100_000)
@ -69,4 +72,116 @@ func TestPublishLuckyGiftRuleConfigPersistsVersionsAndTiers(t *testing.T) {
 	if len(latest.Stages) != 1 || len(latest.Stages[0].Tiers) != 1 || latest.Stages[0].Tiers[0].TierID != "novice_1x" {
 		t.Fatalf("latest stages = %+v, want single novice tier novice_1x", latest.Stages)
 	}
+
+	// dynamic_v3 的 JSON 倍率、阶段充值阈值和金额风控必须随不可变版本完整往返；否则服务重启后会静默退回默认策略。
+	dynamic := config
+	dynamic.StrategyVersion = domain.StrategyDynamicV3
+	dynamic.ProfitRatePPM = 10_000
+	dynamic.AnchorRatePPM = 10_000
+	dynamic.InitialPoolCoins = 1_000_000
+	dynamic.LossStreakGuarantee = 5
+	dynamic.LowWatermarkCoins = 10_000_000
+	dynamic.LowWaterNonzeroFactorPPM = 700_000
+	dynamic.HighWatermarkCoins = 20_000_000
+	dynamic.HighWaterNonzeroFactorPPM = 1_300_000
+	dynamic.RechargeBoostWindowMS = 300_000
+	dynamic.RechargeBoostFactorPPM = 1_100_000
+	dynamic.JackpotMultiplierPPMs = []int64{200_000_000, 500_000_000, 1_000_000_000}
+	dynamic.JackpotGlobalRTPMaxPPM = 980_000
+	dynamic.JackpotUserDayRTPMaxPPM = 960_000
+	dynamic.JackpotUser72hRTPMaxPPM = 960_000
+	dynamic.JackpotSpendThresholdCoins = 5_000
+	dynamic.MaxJackpotHitsPerUserDay = 5
+	dynamic.MaxSinglePayout = 1_000_000
+	dynamic.UserHourlyPayoutCap = 2_000_000
+	dynamic.UserDailyPayoutCap = 3_000_000
+	dynamic.DeviceDailyPayoutCap = 4_000_000
+	dynamic.RoomHourlyPayoutCap = 5_000_000
+	dynamic.AnchorDailyPayoutCap = 6_000_000
+	dynamic.Stages[0].MinRecharge7DCoins = 1
+	dynamic.Stages[0].MinRecharge30DCoins = 2
+
+	third, err := repo.PublishLuckyGiftRuleConfig(ctx, dynamic, 1_700_000_200_000)
+	if err != nil {
+		t.Fatalf("publish dynamic rule version: %v", err)
+	}
+	if third.RuleVersion != 3 {
+		t.Fatalf("dynamic rule_version = %d, want 3", third.RuleVersion)
+	}
+	loaded, exists, err := repo.GetLuckyGiftRuleConfig(ctx, "lucky")
+	if err != nil || !exists {
+		t.Fatalf("get dynamic rule: exists=%v err=%v", exists, err)
+	}
+	if loaded.StrategyVersion != domain.StrategyDynamicV3 || loaded.InitialPoolCoins != 1_000_000 || loaded.AnchorDailyPayoutCap != 6_000_000 {
+		t.Fatalf("dynamic scalar fields were not persisted: %+v", loaded)
+	}
+	if len(loaded.JackpotMultiplierPPMs) != 3 || loaded.JackpotMultiplierPPMs[2] != 1_000_000_000 {
+		t.Fatalf("jackpot multipliers = %v, want [200x 500x 1000x] ppm", loaded.JackpotMultiplierPPMs)
+	}
+	if len(loaded.Stages) != 1 || loaded.Stages[0].MinRecharge7DCoins != 1 || loaded.Stages[0].MinRecharge30DCoins != 2 {
+		t.Fatalf("dynamic stage thresholds were not persisted: %+v", loaded.Stages)
+	}
+}
+
+func TestDynamicStrategyMigrationIsIdempotent(t *testing.T) {
+	caller := mysqlschema.CallerFile(t, 1)
+	schema := mysqlschema.New(t, mysqlschema.Config{
+		EnvVar:         "LUCKY_GIFT_SERVICE_MYSQL_TEST_DSN",
+		InitDBPath:     mysqlschema.InitDBPath(t, caller, "..", "..", "..", "deploy", "mysql", "initdb", "001_lucky_gift_service.sql"),
+		DatabasePrefix: "hy_lucky_gift",
+	})
+	migrationPath := mysqlschema.InitDBPath(t, caller, "..", "..", "..", "deploy", "mysql", "migrations", "004_dynamic_strategy.sql")
+	// initdb 已包含最终结构，004 连续运行两次仍必须成功，覆盖全新环境与线上重复发布 migration 两条路径。
+	runLuckyGiftSQLScript(t, schema.DB, migrationPath)
+	runLuckyGiftSQLScript(t, schema.DB, migrationPath)
+
+	for _, table := range []string{
+		"lucky_risk_counters", "lucky_user_rtp_hour_buckets", "lucky_user_rtp_boundary_events",
+		"lucky_user_strategy_days", "lucky_gift_command_locks", "external_lucky_gift_draw_items", "external_lucky_gift_request_locks",
+	} {
+		var count int
+		if err := schema.DB.QueryRow(`
+			SELECT COUNT(*) FROM information_schema.TABLES
+			WHERE TABLE_SCHEMA = DATABASE() AND TABLE_NAME = ?`, table).Scan(&count); err != nil || count != 1 {
+			t.Fatalf("migration table %s: count=%d err=%v", table, count, err)
+		}
+	}
+	for _, column := range []struct {
+		table     string
+		name      string
+		minLength int64
+	}{
+		{table: "lucky_user_states", name: "pending_jackpot_tokens"},
+		{table: "lucky_rtp_windows", name: "scope_id", minLength: 128},
+		{table: "lucky_risk_counters", name: "scope_id", minLength: 255},
+		{table: "lucky_gift_command_locks", name: "command_id", minLength: 128},
+	} {
+		var count, length int64
+		if err := schema.DB.QueryRow(`
+			SELECT COUNT(*), COALESCE(MAX(CHARACTER_MAXIMUM_LENGTH), 0)
+			FROM information_schema.COLUMNS
+			WHERE TABLE_SCHEMA = DATABASE() AND TABLE_NAME = ? AND COLUMN_NAME = ?`,
+			column.table, column.name,
+		).Scan(&count, &length); err != nil || count != 1 || (column.minLength > 0 && length < column.minLength) {
+			t.Fatalf("migration column %s.%s count=%d length=%d err=%v", column.table, column.name, count, length, err)
+		}
+	}
+	// 旧发布器只写 v2 原列；数据库默认值和扫描器必须共同把该行解释为 fixed_v2，而不是要求动态字段。
+	if _, err := schema.DB.Exec(`
+		INSERT INTO lucky_gift_rule_versions (
+		  app_code, pool_id, rule_version, enabled, target_rtp_ppm, pool_rate_ppm,
+		  settlement_window_wager, control_band_ppm, gift_price_reference,
+		  novice_max_equivalent_draws, normal_max_equivalent_draws,
+		  effective_from_ms, created_by_admin_id, created_at_ms
+		) VALUES ('legacy', 'lucky', 1, 1, 950000, 960000, 1000000, 10000, 100, 2000, 20000, 1, 7, 1)`); err != nil {
+		t.Fatalf("insert pre-dynamic rule row: %v", err)
+	}
+	repo := &Repository{db: schema.DB}
+	legacy, exists, err := repo.GetLuckyGiftRuleConfig(appcode.WithContext(context.Background(), "legacy"), "lucky")
+	if err != nil || !exists {
+		t.Fatalf("read pre-dynamic rule row: exists=%v err=%v", exists, err)
+	}
+	if legacy.StrategyVersion != domain.StrategyFixedV2 || len(legacy.JackpotMultiplierPPMs) != 0 {
+		t.Fatalf("pre-dynamic row decoded as strategy=%q jackpot=%v, want fixed_v2 and empty jackpot", legacy.StrategyVersion, legacy.JackpotMultiplierPPMs)
+	}
 }
--- a/services/lucky-gift-service/internal/transport/grpc/lucky_gift_server.go
+++ b/services/lucky-gift-service/internal/transport/grpc/lucky_gift_server.go
@ -34,14 +34,15 @@ func (s *LuckyGiftServer) CheckLuckyGift(ctx context.Context, req *luckygiftv1.C
 		return nil, xerr.ToGRPCError(err)
 	}
 	return &luckygiftv1.CheckLuckyGiftResponse{
-		Enabled:        result.Enabled,
-		Reason:         result.Reason,
-		PoolId:         result.PoolID,
-		GiftId:         result.GiftID,
-		GiftPrice:      result.GiftPrice,
-		RuleVersion:    result.RuleVersion,
-		TargetRtpPpm:   result.TargetRTPPPM,
-		ExperiencePool: result.ExperiencePool,
+		Enabled:         result.Enabled,
+		Reason:          result.Reason,
+		PoolId:          result.PoolID,
+		GiftId:          result.GiftID,
+		GiftPrice:       result.GiftPrice,
+		RuleVersion:     result.RuleVersion,
+		StrategyVersion: result.StrategyVersion,
+		TargetRtpPpm:    result.TargetRTPPPM,
+		ExperiencePool:  result.ExperiencePool,
 	}, nil
 }

@ -88,6 +89,7 @@ func (s *LuckyGiftServer) ExecuteExternalGiftDraw(ctx context.Context, req *luck
 	result, err := s.svc.ExecuteExternalDraw(ctx, domain.ExternalDrawCommand{
 		AppCode:        req.GetAppCode(),
 		ExternalUserID: req.GetExternalUserId(),
+		DeviceID:       req.GetDeviceId(),
 		RequestID:      req.GetRequestId(),
 		GiftCount:      req.GetGiftCount(),
 		UnitAmount:     req.GetUnitAmount(),
@ -122,6 +124,12 @@ func luckyDrawCommandFromProto(meta *luckygiftv1.LuckyGiftMeta) domain.DrawComma
 		SenderAvatar:              meta.GetSenderAvatar(),
 		SenderDisplayUserID:       meta.GetSenderDisplayUserId(),
 		SenderPrettyDisplayUserID: meta.GetSenderPrettyDisplayUserId(),
+		// 充值分层、短时加权与主播风控只消费 wallet-service 已落账的事实，
+		// lucky-gift-service 不跨 owner 数据库反查并重新解释同一笔交易。
+		Recharge7DCoins:   meta.GetRecharge_7DCoins(),
+		Recharge30DCoins:  meta.GetRecharge_30DCoins(),
+		LastRechargedAtMS: meta.GetLastRechargedAtMs(),
+		GiftIncomeCoins:   meta.GetGiftIncomeCoins(),
 	}
 }

@ -251,26 +259,51 @@ func luckyRuleConfigFromProto(config *luckygiftv1.LuckyGiftRuleConfig) domain.Ru
 			})
 		}
 		stages = append(stages, domain.RuleStage{
-			Stage: stage.GetStage(),
-			Tiers: tiers,
+			Stage:               stage.GetStage(),
+			MinRecharge7DCoins:  stage.GetMinRecharge_7DCoins(),
+			MinRecharge30DCoins: stage.GetMinRecharge_30DCoins(),
+			Tiers:               tiers,
 		})
 	}
 	return domain.RuleConfig{
-		AppCode:                  config.GetAppCode(),
-		PoolID:                   config.GetPoolId(),
-		RuleVersion:              config.GetRuleVersion(),
-		Enabled:                  config.GetEnabled(),
-		TargetRTPPPM:             config.GetTargetRtpPpm(),
-		PoolRatePPM:              config.GetPoolRatePpm(),
-		SettlementWindowWager:    config.GetSettlementWindowWager(),
-		ControlBandPPM:           config.GetControlBandPpm(),
-		GiftPriceReference:       config.GetGiftPriceReference(),
-		NoviceMaxEquivalentDraws: config.GetNoviceMaxEquivalentDraws(),
-		NormalMaxEquivalentDraws: config.GetNormalMaxEquivalentDraws(),
-		EffectiveFromMS:          config.GetEffectiveFromMs(),
-		CreatedByAdminID:         config.GetCreatedByAdminId(),
-		CreatedAtMS:              config.GetCreatedAtMs(),
-		Stages:                   stages,
+		AppCode:                    config.GetAppCode(),
+		PoolID:                     config.GetPoolId(),
+		RuleVersion:                config.GetRuleVersion(),
+		Enabled:                    config.GetEnabled(),
+		TargetRTPPPM:               config.GetTargetRtpPpm(),
+		PoolRatePPM:                config.GetPoolRatePpm(),
+		SettlementWindowWager:      config.GetSettlementWindowWager(),
+		ControlBandPPM:             config.GetControlBandPpm(),
+		GiftPriceReference:         config.GetGiftPriceReference(),
+		NoviceMaxEquivalentDraws:   config.GetNoviceMaxEquivalentDraws(),
+		NormalMaxEquivalentDraws:   config.GetNormalMaxEquivalentDraws(),
+		EffectiveFromMS:            config.GetEffectiveFromMs(),
+		CreatedByAdminID:           config.GetCreatedByAdminId(),
+		CreatedAtMS:                config.GetCreatedAtMs(),
+		StrategyVersion:            config.GetStrategyVersion(),
+		ProfitRatePPM:              config.GetProfitRatePpm(),
+		AnchorRatePPM:              config.GetAnchorRatePpm(),
+		InitialPoolCoins:           config.GetInitialPoolCoins(),
+		LossStreakGuarantee:        config.GetLossStreakGuarantee(),
+		LowWatermarkCoins:          config.GetLowWatermarkCoins(),
+		LowWaterNonzeroFactorPPM:   config.GetLowWaterNonzeroFactorPpm(),
+		HighWatermarkCoins:         config.GetHighWatermarkCoins(),
+		HighWaterNonzeroFactorPPM:  config.GetHighWaterNonzeroFactorPpm(),
+		RechargeBoostWindowMS:      config.GetRechargeBoostWindowMs(),
+		RechargeBoostFactorPPM:     config.GetRechargeBoostFactorPpm(),
+		JackpotMultiplierPPMs:      append([]int64(nil), config.GetJackpotMultiplierPpms()...),
+		JackpotGlobalRTPMaxPPM:     config.GetJackpotGlobalRtpMaxPpm(),
+		JackpotUserDayRTPMaxPPM:    config.GetJackpotUserDayRtpMaxPpm(),
+		JackpotUser72hRTPMaxPPM:    config.GetJackpotUser_72HRtpMaxPpm(),
+		JackpotSpendThresholdCoins: config.GetJackpotSpendThresholdCoins(),
+		MaxJackpotHitsPerUserDay:   config.GetMaxJackpotHitsPerUserDay(),
+		MaxSinglePayout:            config.GetMaxSinglePayout(),
+		UserHourlyPayoutCap:        config.GetUserHourlyPayoutCap(),
+		UserDailyPayoutCap:         config.GetUserDailyPayoutCap(),
+		DeviceDailyPayoutCap:       config.GetDeviceDailyPayoutCap(),
+		RoomHourlyPayoutCap:        config.GetRoomHourlyPayoutCap(),
+		AnchorDailyPayoutCap:       config.GetAnchorDailyPayoutCap(),
+		Stages:                     stages,
 	}
 }

@ -289,26 +322,51 @@ func luckyRuleConfigToProto(config domain.RuleConfig) *luckygiftv1.LuckyGiftRule
 			})
 		}
 		stages = append(stages, &luckygiftv1.LuckyGiftRuleStage{
-			Stage: stage.Stage,
-			Tiers: tiers,
+			Stage:                stage.Stage,
+			MinRecharge_7DCoins:  stage.MinRecharge7DCoins,
+			MinRecharge_30DCoins: stage.MinRecharge30DCoins,
+			Tiers:                tiers,
 		})
 	}
 	return &luckygiftv1.LuckyGiftRuleConfig{
-		AppCode:                  config.AppCode,
-		PoolId:                   config.PoolID,
-		RuleVersion:              config.RuleVersion,
-		Enabled:                  config.Enabled,
-		TargetRtpPpm:             config.TargetRTPPPM,
-		PoolRatePpm:              config.PoolRatePPM,
-		SettlementWindowWager:    config.SettlementWindowWager,
-		ControlBandPpm:           config.ControlBandPPM,
-		GiftPriceReference:       config.GiftPriceReference,
-		NoviceMaxEquivalentDraws: config.NoviceMaxEquivalentDraws,
-		NormalMaxEquivalentDraws: config.NormalMaxEquivalentDraws,
-		EffectiveFromMs:          config.EffectiveFromMS,
-		CreatedByAdminId:         config.CreatedByAdminID,
-		CreatedAtMs:              config.CreatedAtMS,
-		Stages:                   stages,
+		AppCode:                    config.AppCode,
+		PoolId:                     config.PoolID,
+		RuleVersion:                config.RuleVersion,
+		Enabled:                    config.Enabled,
+		TargetRtpPpm:               config.TargetRTPPPM,
+		PoolRatePpm:                config.PoolRatePPM,
+		SettlementWindowWager:      config.SettlementWindowWager,
+		ControlBandPpm:             config.ControlBandPPM,
+		GiftPriceReference:         config.GiftPriceReference,
+		NoviceMaxEquivalentDraws:   config.NoviceMaxEquivalentDraws,
+		NormalMaxEquivalentDraws:   config.NormalMaxEquivalentDraws,
+		EffectiveFromMs:            config.EffectiveFromMS,
+		CreatedByAdminId:           config.CreatedByAdminID,
+		CreatedAtMs:                config.CreatedAtMS,
+		StrategyVersion:            config.StrategyVersion,
+		ProfitRatePpm:              config.ProfitRatePPM,
+		AnchorRatePpm:              config.AnchorRatePPM,
+		InitialPoolCoins:           config.InitialPoolCoins,
+		LossStreakGuarantee:        config.LossStreakGuarantee,
+		LowWatermarkCoins:          config.LowWatermarkCoins,
+		LowWaterNonzeroFactorPpm:   config.LowWaterNonzeroFactorPPM,
+		HighWatermarkCoins:         config.HighWatermarkCoins,
+		HighWaterNonzeroFactorPpm:  config.HighWaterNonzeroFactorPPM,
+		RechargeBoostWindowMs:      config.RechargeBoostWindowMS,
+		RechargeBoostFactorPpm:     config.RechargeBoostFactorPPM,
+		JackpotMultiplierPpms:      append([]int64(nil), config.JackpotMultiplierPPMs...),
+		JackpotGlobalRtpMaxPpm:     config.JackpotGlobalRTPMaxPPM,
+		JackpotUserDayRtpMaxPpm:    config.JackpotUserDayRTPMaxPPM,
+		JackpotUser_72HRtpMaxPpm:   config.JackpotUser72hRTPMaxPPM,
+		JackpotSpendThresholdCoins: config.JackpotSpendThresholdCoins,
+		MaxJackpotHitsPerUserDay:   config.MaxJackpotHitsPerUserDay,
+		MaxSinglePayout:            config.MaxSinglePayout,
+		UserHourlyPayoutCap:        config.UserHourlyPayoutCap,
+		UserDailyPayoutCap:         config.UserDailyPayoutCap,
+		DeviceDailyPayoutCap:       config.DeviceDailyPayoutCap,
+		RoomHourlyPayoutCap:        config.RoomHourlyPayoutCap,
+		AnchorDailyPayoutCap:       config.AnchorDailyPayoutCap,
+		Stages:                     stages,
 	}
 }

--- a/services/room-service/internal/room/command/command.go
+++ b/services/room-service/internal/room/command/command.go
@ -34,6 +34,9 @@ type Base struct {
 	GatewayNodeID string `json:"gateway_node_id"`
 	// SessionID 记录 gateway 看到的客户端会话，不等同于腾讯云 IM 连接。
 	SessionID string `json:"session_id"`
+	// DeviceID 是 user-service 绑定到 auth_session 并经 JWT 验签的设备 ID。
+	// 旧 command log 没有该字段时反序列化为空，fixed_v2 仍可重放，dynamic_v3 由抽奖 owner fail-close。
+	DeviceID string `json:"device_id,omitempty"`
 	// SentAtMS 是客户端请求进入系统的时间，恢复回放时用于还原用户态时间字段。
 	SentAtMS int64 `json:"sent_at_ms"`
 }
@ -439,6 +442,9 @@ type SendGift struct {
 	GiftID string `json:"gift_id"`
 	// PoolID 是幸运礼物奖池标识；为空表示普通礼物或默认幸运奖池。
 	PoolID string `json:"pool_id,omitempty"`
+	// LuckyGiftStrategyVersion 是 lucky-gift Check 返回的 owner 规则快照；room saga 固化它只为
+	// 在滚动发布期间区分 fixed_v2 兼容与 dynamic_v3 必填 wallet 事实，不参与客户端幂等语义。
+	LuckyGiftStrategyVersion string `json:"lucky_gift_strategy_version,omitempty"`
 	// GiftCount 是礼物数量，必须为正数。
 	GiftCount int32 `json:"gift_count"`
 	// EntitlementID 是背包送礼要消耗的用户礼物权益 ID；普通金币送礼为空。
@ -652,6 +658,9 @@ func IdempotencyPayload(payload []byte) ([]byte, error) {
 	delete(values, "request_id")
 	delete(values, "gateway_node_id")
 	delete(values, "session_id")
+	// device_id 是首次请求的可信风控快照，会在 gift operation/command log 中按原值恢复；
+	// 它不属于客户端业务载荷，token 旋转后的同 command_id 重试不应因此冲突。
+	delete(values, "device_id")
 	delete(values, "sent_at_ms")
 	// 展示快照来自 gateway 对 user-service 的读取结果，不改变扣费和房间状态语义；重试同一 command_id 时不能因为昵称头像变化冲突。
 	delete(values, "sender_display_profile")
@ -685,6 +694,7 @@ func IdempotencyPayload(payload []byte) ([]byte, error) {
 	delete(values, "gift_type_code")
 	delete(values, "host_period_diamond_added")
 	delete(values, "host_period_cycle_key")
+	delete(values, "lucky_gift_strategy_version")
 	delete(values, "rocket_touched")
 	delete(values, "rocket_added_fuel")
 	delete(values, "rocket_effective_fuel")
--- a/services/room-service/internal/room/command/idempotency_test.go
+++ b/services/room-service/internal/room/command/idempotency_test.go
@ -7,7 +7,7 @@ import (

 func TestSendGiftIdempotencyIgnoresGatewayResolvedSnapshots(t *testing.T) {
 	base := SendGift{
-		Base:       Base{CommandID: "combo-1_b1", Room: "room-1", ActorID: 42},
+		Base:       Base{CommandID: "combo-1_b1", Room: "room-1", ActorID: 42, DeviceID: "device-first"},
 		TargetType: "user", TargetUserIDs: []int64{43}, TargetUserID: 43,
 		GiftID: "rose", GiftCount: 9, ComboSessionID: "combo-1", BatchSeq: 1,
 		SenderRegionID: 1001, SenderCountryID: 840,
@ -19,6 +19,7 @@ func TestSendGiftIdempotencyIgnoresGatewayResolvedSnapshots(t *testing.T) {
 	retry.SenderCountryID = 356
 	retry.TargetHostScopes = []GiftTargetHostScope{{TargetUserID: 43, TargetIsHost: false}}
 	retry.SenderDisplayProfile = GiftDisplayProfile{UserID: 42, Username: "after"}
+	retry.DeviceID = "device-after-token-rotation"

 	left, err := IdempotencyPayloadForCommand(base)
 	if err != nil {
@ -33,6 +34,40 @@ func TestSendGiftIdempotencyIgnoresGatewayResolvedSnapshots(t *testing.T) {
 	}
 }

+func TestSendGiftCommandLogPreservesTrustedDeviceIDAndReadsLegacyPayload(t *testing.T) {
+	original := SendGift{
+		Base: Base{
+			AppCode: "lalu", CommandID: "cmd-device-recovery", Room: "room-1", ActorID: 42,
+			SessionID: "sess-not-a-device", DeviceID: "device-auth-session-1", SentAtMS: 1_000,
+		},
+		TargetType: "user", TargetUserIDs: []int64{43}, TargetUserID: 43,
+		GiftID: "rose", GiftCount: 1,
+	}
+	payload, err := Serialize(original)
+	if err != nil {
+		t.Fatalf("serialize send gift device snapshot: %v", err)
+	}
+	recovered, err := Deserialize(original.Type(), payload)
+	if err != nil {
+		t.Fatalf("deserialize send gift device snapshot: %v", err)
+	}
+	got, ok := recovered.(*SendGift)
+	if !ok || got.DeviceID != "device-auth-session-1" || got.SessionID != "sess-not-a-device" {
+		t.Fatalf("recovered trusted device snapshot mismatch: %#v", recovered)
+	}
+
+	// 滚动升级前的 command log 不包含 device_id；反序列化必须保持可恢复，
+	// 并留下空值让 fixed_v2 兼容、dynamic_v3 在 owner 处明确拒绝。
+	legacy, err := Deserialize(original.Type(), []byte(`{"app_code":"lalu","command_id":"cmd-legacy","actor_user_id":42,"room_id":"room-1","session_id":"sess-legacy","target_type":"user","target_user_id":43,"gift_id":"rose","gift_count":1}`))
+	if err != nil {
+		t.Fatalf("deserialize legacy send gift: %v", err)
+	}
+	legacyGift := legacy.(*SendGift)
+	if legacyGift.DeviceID != "" || legacyGift.SessionID != "sess-legacy" {
+		t.Fatalf("legacy command must not derive device from session: %+v", legacyGift.Base)
+	}
+}
+
 func TestSendGiftIdempotencyKeepsComboBatchIdentity(t *testing.T) {
 	base := SendGift{Base: Base{CommandID: "combo-1_b1", Room: "room-1", ActorID: 42}, TargetType: "user", TargetUserIDs: []int64{43}, TargetUserID: 43, GiftID: "rose", GiftCount: 1, ComboSessionID: "combo-1", BatchSeq: 1}
 	reused := base
--- a/services/room-service/internal/room/service/gift_flow.go
+++ b/services/room-service/internal/room/service/gift_flow.go
@ -243,6 +243,15 @@ func (f *giftFlow) prepareRoomFacts() error {
 			if checkResp == nil || !checkResp.GetEnabled() {
 				return xerr.New(xerr.RuleNotActive, "lucky gift rule is not active")
 			}
+			// 规则版本由 lucky-gift owner 判定并随 room saga 命令固化；恢复阶段不重新 Check，
+			// 防止后台切换策略后把一笔已扣费命令从 fixed_v2 兼容语义改成 dynamic_v3。
+			f.cmd.LuckyGiftStrategyVersion = normalizeLuckyGiftStrategyVersion(checkResp.GetStrategyVersion())
+			f.settledCommand.LuckyGiftStrategyVersion = f.cmd.LuckyGiftStrategyVersion
+			if f.cmd.LuckyGiftStrategyVersion == luckyGiftStrategyDynamicV3 && strings.TrimSpace(f.cmd.DeviceID) == "" {
+				// 新 dynamic_v3 请求在 wallet 扣费前拒绝旧 JWT，避免创建一笔因缺设备作用域而无法完成的扣费 saga。
+				// 已扣费恢复仍由 lucky-gift owner 的同一校验 fail-close，不得用 sid/command_id 补值。
+				return xerr.New(xerr.InvalidArgument, "device_id is required for dynamic lucky gift")
+			}
 			// Check 只说明“允许按该 pool 抽奖”，真实价格、区域可用性和扣费仍以 wallet-service 为准。
 			f.luckyEnabled = true
 		}
@ -289,7 +298,7 @@ func (f *giftFlow) debitAndSettle(now time.Time) error {
 			f.luckyEnabled = f.s.shouldDrawLuckyGift(f.cmd.PoolID, f.billing.GetGiftTypeCode())
 		}
 		if !f.cmd.SyntheticLuckyGift && f.luckyEnabled {
-			f.luckyGifts, err = f.s.executeLuckyGiftDraws(f.ctx, f.req.GetMeta(), f.cmd, f.roomMeta, f.targetBillings, now)
+			f.luckyGifts, err = f.s.executeLuckyGiftDraws(f.ctx, f.req.GetMeta(), f.cmd, f.roomMeta, f.targetBillings)
 			if err != nil {
 				// 抽奖失败时整笔送礼失败并依赖 wallet 幂等重试；不能落普通礼物后丢失幸运礼物抽奖事实。
 				return err
--- a/services/room-service/internal/room/service/gift_lucky.go
+++ b/services/room-service/internal/room/service/gift_lucky.go
@ -15,28 +15,37 @@ import (
 	"hyapp/services/room-service/internal/room/command"
 )

-func (s *Service) executeLuckyGiftDraws(ctx context.Context, meta *roomv1.RequestMeta, cmd command.SendGift, roomMeta RoomMeta, targetBillings []giftTargetBilling, now time.Time) ([]*roomv1.LuckyGiftDrawResult, error) {
+const (
+	luckyGiftStrategyFixedV2   = "fixed_v2"
+	luckyGiftStrategyDynamicV3 = "dynamic_v3"
+)
+
+func (s *Service) executeLuckyGiftDraws(ctx context.Context, meta *roomv1.RequestMeta, cmd command.SendGift, roomMeta RoomMeta, targetBillings []giftTargetBilling) ([]*roomv1.LuckyGiftDrawResult, error) {
 	if len(targetBillings) == 0 {
 		return nil, nil
 	}
 	if len(targetBillings) == 1 {
-		result, err := s.executeLuckyGiftDraw(ctx, meta, cmd, roomMeta, targetBillings[0], now)
+		result, err := s.executeLuckyGiftDraw(ctx, meta, cmd, roomMeta, targetBillings[0])
 		if err != nil {
 			return nil, err
 		}
 		return []*roomv1.LuckyGiftDrawResult{result}, nil
 	}

-	return s.executeLuckyGiftDrawBatch(ctx, meta, cmd, roomMeta, targetBillings, now)
+	return s.executeLuckyGiftDrawBatch(ctx, meta, cmd, roomMeta, targetBillings)
 }

-func (s *Service) executeLuckyGiftDraw(ctx context.Context, meta *roomv1.RequestMeta, cmd command.SendGift, roomMeta RoomMeta, targetBilling giftTargetBilling, now time.Time) (*roomv1.LuckyGiftDrawResult, error) {
+func (s *Service) executeLuckyGiftDraw(ctx context.Context, meta *roomv1.RequestMeta, cmd command.SendGift, roomMeta RoomMeta, targetBilling giftTargetBilling) (*roomv1.LuckyGiftDrawResult, error) {
 	if targetBilling.Billing == nil {
 		return nil, xerr.New(xerr.Unavailable, "wallet target debit response is empty")
 	}
 	// 抽奖必须按每个收礼目标独立落事实；command_id、target_user_id 和 coin_spent 都来自该目标的 wallet 子交易。
+	luckyMeta, err := luckyGiftMetaForTarget(ctx, meta, cmd, roomMeta, targetBilling)
+	if err != nil {
+		return nil, err
+	}
 	drawResp, err := s.luckyGift.ExecuteLuckyGiftDraw(ctx, &luckygiftv1.ExecuteLuckyGiftDrawRequest{
-		LuckyGift: luckyGiftMetaForTarget(ctx, meta, cmd, roomMeta, targetBilling, now),
+		LuckyGift: luckyMeta,
 	})
 	if err != nil {
 		return nil, err
@ -48,14 +57,18 @@ func (s *Service) executeLuckyGiftDraw(ctx context.Context, meta *roomv1.Request
 	return luckyGiftResultFromProto(drawResp.GetResult(), targetBilling.TargetUserID), nil
 }

-func (s *Service) executeLuckyGiftDrawBatch(ctx context.Context, meta *roomv1.RequestMeta, cmd command.SendGift, roomMeta RoomMeta, targetBillings []giftTargetBilling, now time.Time) ([]*roomv1.LuckyGiftDrawResult, error) {
+func (s *Service) executeLuckyGiftDrawBatch(ctx context.Context, meta *roomv1.RequestMeta, cmd command.SendGift, roomMeta RoomMeta, targetBillings []giftTargetBilling) ([]*roomv1.LuckyGiftDrawResult, error) {
 	req := &luckygiftv1.BatchExecuteLuckyGiftDrawRequest{LuckyGifts: make([]*luckygiftv1.LuckyGiftMeta, 0, len(targetBillings))}
 	for _, targetBilling := range targetBillings {
 		if targetBilling.Billing == nil {
 			return nil, xerr.New(xerr.Unavailable, "wallet target debit response is empty")
 		}
-		// 多人送礼只跨服务调用一次；activity-service 在一个事务内按这个顺序推进锁和抽奖事实。
-		req.LuckyGifts = append(req.LuckyGifts, luckyGiftMetaForTarget(ctx, meta, cmd, roomMeta, targetBilling, now))
+		luckyMeta, err := luckyGiftMetaForTarget(ctx, meta, cmd, roomMeta, targetBilling)
+		if err != nil {
+			return nil, err
+		}
+		// 多人送礼只跨服务调用一次；lucky-gift-service 在一个事务内按这个顺序推进锁和抽奖事实。
+		req.LuckyGifts = append(req.LuckyGifts, luckyMeta)
 	}
 	resp, err := s.luckyGift.BatchExecuteLuckyGiftDraw(ctx, req)
 	if err != nil {
@ -74,21 +87,29 @@ func (s *Service) executeLuckyGiftDrawBatch(ctx context.Context, meta *roomv1.Re
 	return results, nil
 }

-func luckyGiftMetaForTarget(ctx context.Context, meta *roomv1.RequestMeta, cmd command.SendGift, roomMeta RoomMeta, targetBilling giftTargetBilling, now time.Time) *luckygiftv1.LuckyGiftMeta {
+func luckyGiftMetaForTarget(ctx context.Context, meta *roomv1.RequestMeta, cmd command.SendGift, roomMeta RoomMeta, targetBilling giftTargetBilling) (*luckygiftv1.LuckyGiftMeta, error) {
+	paidAtMS := targetBilling.Billing.GetPaidAtMs()
+	if paidAtMS <= 0 && normalizeLuckyGiftStrategyVersion(cmd.LuckyGiftStrategyVersion) == luckyGiftStrategyDynamicV3 {
+		// dynamic_v3 所有时间窗口必须归属 wallet owner 的实际交易；缺字段通常表示 wallet 尚未滚动升级，
+		// 已扣费 saga 保持可恢复并等待 owner 回执补齐，绝不能拿 room mutate/recovery 时钟继续开奖。
+		return nil, xerr.New(xerr.Unavailable, "wallet paid_at_ms is required for dynamic lucky gift")
+	}
 	return &luckygiftv1.LuckyGiftMeta{
 		Meta:         luckyGiftMetaFromRoom(ctx, meta),
 		CommandId:    targetBilling.CommandID,
 		UserId:       cmd.ActorUserID(),
 		TargetUserId: targetBilling.TargetUserID,
-		// 目前没有独立设备 ID 字段，优先用 session_id；没有时退回目标子 command_id，保证每次抽奖 scope 不为空。
-		DeviceId:  luckyGiftDeviceID(cmd, targetBilling.CommandID),
+		// DeviceID 已在首次请求进入 gift operation 时随 command.Base 持久化，恢复必须继续使用该值。
+		// 空值原样传给 owner：fixed_v2 兼容旧 JWT，dynamic_v3 拒绝；绝不用 session_id/command_id 伪造设备。
+		DeviceId:  cmd.DeviceID,
 		RoomId:    cmd.RoomID(),
 		AnchorId:  luckyGiftAnchorID(roomMeta),
 		GiftId:    cmd.GiftID,
 		GiftCount: cmd.GiftCount,
 		CoinSpent: targetBilling.Billing.GetCoinSpent(),
-		// 房间链路统一使用 UTC epoch ms；不能把本地时区时间传给幸运礼物 RTP 窗口。
-		PaidAtMs:        now.UTC().UnixMilli(),
+		// PaidAtMs 只来自当前目标的 wallet transaction；batch 每个 target 也保留自己的 owner 回执，
+		// 不使用聚合回执、Room Cell mutate 时钟或 gift_operation.created_at_ms。
+		PaidAtMs:        paidAtMS,
 		PoolId:          cmd.PoolID,
 		VisibleRegionId: roomMeta.VisibleRegionID,
 		CountryId:       cmd.SenderCountryID,
@ -97,7 +118,21 @@ func luckyGiftMetaForTarget(ctx context.Context, meta *roomv1.RequestMeta, cmd c
 		SenderAvatar:              strings.TrimSpace(cmd.SenderDisplayProfile.Avatar),
 		SenderDisplayUserId:       strings.TrimSpace(cmd.SenderDisplayProfile.DisplayUserID),
 		SenderPrettyDisplayUserId: strings.TrimSpace(cmd.SenderDisplayProfile.PrettyDisplayUserID),
+		// 充值分层和短时加权只消费 wallet 扣费回执里固化的 owner 快照；room 不查询充值流水，也不按当前时间重新计算。
+		Recharge_7DCoins:  targetBilling.Billing.GetRechargeSevenDayCoins(),
+		Recharge_30DCoins: targetBilling.Billing.GetRechargeThirtyDayCoins(),
+		LastRechargedAtMs: targetBilling.Billing.GetLastRechargedAtMs(),
+		GiftIncomeCoins:   targetBilling.Billing.GetGiftIncomeCoinAmount(),
+	}, nil
+}
+
+func normalizeLuckyGiftStrategyVersion(value string) string {
+	value = strings.ToLower(strings.TrimSpace(value))
+	if value == "" {
+		// 旧 lucky-gift 版本没有返回 strategy_version；它发布时只有 fixed_v2，故仅该空值兼容成 fixed_v2。
+		return luckyGiftStrategyFixedV2
 	}
+	return value
 }

 func (s *Service) shouldDrawLuckyGift(poolID string, giftTypeCode string) bool {
@ -140,16 +175,6 @@ func luckyGiftMetaFromRoom(ctx context.Context, meta *roomv1.RequestMeta) *lucky
 	}
 }

-func luckyGiftDeviceID(cmd command.SendGift, fallbackCommandID string) string {
-	if value := strings.TrimSpace(cmd.SessionID); value != "" {
-		return value
-	}
-	if value := strings.TrimSpace(fallbackCommandID); value != "" {
-		return value
-	}
-	return cmd.ID()
-}
-
 func luckyGiftAnchorID(roomMeta RoomMeta) string {
 	if roomMeta.OwnerUserID <= 0 {
 		return roomMeta.RoomID
--- a/services/room-service/internal/room/service/gift_v2_test.go
+++ b/services/room-service/internal/room/service/gift_v2_test.go
@ -19,9 +19,11 @@ import (

 type concurrentV2Wallet struct {
 	followTestWallet
-	calls   atomic.Int32
-	started chan struct{}
-	release chan struct{}
+	calls          atomic.Int32
+	started        chan struct{}
+	release        chan struct{}
+	walletPaidAtMS int64
+	omitPaidAt     bool
 }

 func (w *concurrentV2Wallet) DebitGift(ctx context.Context, _ *walletv1.DebitGiftRequest) (*walletv1.DebitGiftResponse, error) {
@ -35,6 +37,10 @@ func (w *concurrentV2Wallet) DebitGift(ctx context.Context, _ *walletv1.DebitGif
 		case <-w.release:
 		}
 	}
+	paidAtMS := w.walletPaidAtMS
+	if paidAtMS <= 0 && !w.omitPaidAt {
+		paidAtMS = 1_700_000_000_000
+	}
 	return &walletv1.DebitGiftResponse{
 		BillingReceiptId:       "receipt-v2-stable",
 		TransactionId:          "wallet-tx-v2-stable",
@ -45,9 +51,38 @@ func (w *concurrentV2Wallet) DebitGift(ctx context.Context, _ *walletv1.DebitGif
 		BalanceVersion:         17,
 		GiftIncomeBalanceAfter: 25,
 		GiftTypeCode:           "normal",
+		PaidAtMs:               paidAtMS,
 	}, nil
 }

+func TestDynamicLuckyGiftRejectsMissingWalletPaidAtAfterDebit(t *testing.T) {
+	ctx := appcode.WithContext(context.Background(), appcode.Default)
+	repository := mysqltest.NewRepository(t)
+	wallet := &concurrentV2Wallet{omitPaidAt: true}
+	lucky := &recoverableLuckyClient{}
+	svc := roomservice.New(roomservice.Config{
+		NodeID: "node-gift-v2-missing-paid-at", LeaseTTL: 10 * time.Second, RankLimit: 20, SnapshotEveryN: 1,
+	}, router.NewMemoryDirectory(), repository, wallet, integration.NewNoopRoomEventPublisher(), integration.NewNoopOutboxPublisher(), lucky)
+
+	roomID := "room-gift-v2-missing-paid-at"
+	createRocketRoom(t, ctx, svc, roomID, 351, 9001)
+	joinRocketRoom(t, ctx, svc, roomID, 352)
+	request := &roomv1.SendGiftRequest{
+		Meta:       &roomv1.RequestMeta{CommandId: "cmd-v2-missing-paid-at", ActorUserId: 351, RoomId: roomID, AppCode: appcode.Default, DeviceId: "device-v2-missing-paid-at"},
+		TargetType: "user", TargetUserId: 352, GiftId: "lucky-rose", GiftCount: 1, PoolId: "lucky-pool",
+	}
+	if _, err := svc.SendGift(ctx, request); !xerr.IsCode(err, xerr.Unavailable) {
+		t.Fatalf("dynamic_v3 missing wallet paid_at_ms should fail closed, got %v", err)
+	}
+	if lucky.calls.Load() != 0 {
+		t.Fatalf("dynamic_v3 missing wallet paid_at_ms reached lucky random path %d times", lucky.calls.Load())
+	}
+	operation, exists, err := repository.GetGiftOperation(ctx, roomID, request.GetMeta().GetCommandId())
+	if err != nil || !exists || operation.Status != roomservice.GiftOperationStatusDebited {
+		t.Fatalf("already debited saga must remain recoverable: exists=%v operation=%+v err=%v", exists, operation, err)
+	}
+}
+
 func TestSendGiftConcurrentCommandReplaysOriginalV2AndKeepsV1Fields(t *testing.T) {
 	ctx := appcode.WithContext(context.Background(), appcode.Default)
 	repository := mysqltest.NewRepository(t)
@ -119,18 +154,23 @@ func TestSendGiftConcurrentCommandReplaysOriginalV2AndKeepsV1Fields(t *testing.T
 }

 type recoverableLuckyClient struct {
-	calls atomic.Int32
+	calls    atomic.Int32
+	paidAtMS [2]atomic.Int64
 }

 func (*recoverableLuckyClient) CheckLuckyGift(context.Context, *luckygiftv1.CheckLuckyGiftRequest) (*luckygiftv1.CheckLuckyGiftResponse, error) {
-	return &luckygiftv1.CheckLuckyGiftResponse{Enabled: true, RuleVersion: 1, PoolId: "lucky-pool"}, nil
+	return &luckygiftv1.CheckLuckyGiftResponse{Enabled: true, RuleVersion: 1, PoolId: "lucky-pool", StrategyVersion: "dynamic_v3"}, nil
 }

 func (c *recoverableLuckyClient) ExecuteLuckyGiftDraw(_ context.Context, req *luckygiftv1.ExecuteLuckyGiftDrawRequest) (*luckygiftv1.ExecuteLuckyGiftDrawResponse, error) {
-	if c.calls.Add(1) == 1 {
+	meta := req.GetLuckyGift()
+	call := c.calls.Add(1)
+	if call <= 2 {
+		c.paidAtMS[call-1].Store(meta.GetPaidAtMs())
+	}
+	if call == 1 {
 		return nil, xerr.New(xerr.Unavailable, "temporary lucky outage")
 	}
-	meta := req.GetLuckyGift()
 	return &luckygiftv1.ExecuteLuckyGiftDrawResponse{Result: &luckygiftv1.LuckyGiftDrawResult{
 		DrawId: "draw-recovered", CommandId: meta.GetCommandId(), GiftId: meta.GetGiftId(), PoolId: meta.GetPoolId(),
 		MultiplierPpm: 2_000_000, EffectiveRewardCoins: 200, RewardStatus: "granted", CoinBalanceAfter: 1100,
@ -153,13 +193,16 @@ func (c *recoverableLuckyClient) BatchExecuteLuckyGiftDraw(ctx context.Context,
 func TestGiftOperationWorkerFinishesDebitedRequestWithoutClientRetry(t *testing.T) {
 	ctx := appcode.WithContext(context.Background(), appcode.Default)
 	repository := mysqltest.NewRepository(t)
-	wallet := &concurrentV2Wallet{}
+	walletPaidAtMS := time.Date(2026, 7, 12, 23, 59, 59, 700_000_000, time.UTC).UnixMilli()
+	wallet := &concurrentV2Wallet{walletPaidAtMS: walletPaidAtMS}
 	lucky := &recoverableLuckyClient{}
+	clock := &fixedRoomRocketClock{now: time.Date(2026, 7, 12, 23, 59, 59, 800_000_000, time.UTC)}
 	svc := roomservice.New(roomservice.Config{
 		NodeID:         "node-gift-v2-recovery",
-		LeaseTTL:       10 * time.Second,
+		LeaseTTL:       48 * time.Hour,
 		RankLimit:      20,
 		SnapshotEveryN: 1,
+		Clock:          clock,
 	}, router.NewMemoryDirectory(), repository, wallet, integration.NewNoopRoomEventPublisher(), integration.NewNoopOutboxPublisher(), lucky)

 	roomID := "room-gift-v2-recovery"
@ -167,7 +210,7 @@ func TestGiftOperationWorkerFinishesDebitedRequestWithoutClientRetry(t *testing.
 	createRocketRoom(t, ctx, svc, roomID, senderID, 9001)
 	joinRocketRoom(t, ctx, svc, roomID, targetID)
 	req := &roomv1.SendGiftRequest{
-		Meta:       &roomv1.RequestMeta{RequestId: "req-v2-recovery", CommandId: "cmd-v2-recovery", ActorUserId: senderID, RoomId: roomID, AppCode: appcode.Default},
+		Meta:       &roomv1.RequestMeta{RequestId: "req-v2-recovery", CommandId: "cmd-v2-recovery", ActorUserId: senderID, RoomId: roomID, AppCode: appcode.Default, DeviceId: "device-v2-recovery"},
 		TargetType: "user", TargetUserId: targetID, GiftId: "lucky-rose", GiftCount: 1, PoolId: "lucky-pool",
 	}
 	if _, err := svc.SendGift(ctx, req); !xerr.IsCode(err, xerr.Unavailable) {
@ -177,6 +220,12 @@ func TestGiftOperationWorkerFinishesDebitedRequestWithoutClientRetry(t *testing.
 	if err != nil || !exists || operation.Status != roomservice.GiftOperationStatusDebited {
 		t.Fatalf("debited saga was not persisted: exists=%v operation=%+v err=%v", exists, operation, err)
 	}
+	// 恢复跨过五分钟加权窗和 UTC 切日后，lucky-service 仍必须收到 wallet 首次交易时间；
+	// saga created_at 与 wallet paid_at 即使只差 100ms 也不是同一个 owner 事实，不能相互替代。
+	clock.now = clock.now.Add(6 * time.Minute)
+	if clock.Now().Sub(time.UnixMilli(operation.CreatedAtMS)) <= 5*time.Minute || clock.Now().UTC().Day() == time.UnixMilli(operation.CreatedAtMS).UTC().Day() {
+		t.Fatalf("test clock did not cross both recovery boundaries: created=%s recovery=%s", time.UnixMilli(operation.CreatedAtMS).UTC(), clock.Now())
+	}
 	if _, err := svc.CloseRoom(ctx, &roomv1.CloseRoomRequest{
 		Meta: &roomv1.RequestMeta{CommandId: "close-during-gift-recovery", ActorUserId: senderID, RoomId: roomID, AppCode: appcode.Default},
 	}); !xerr.IsCode(err, xerr.Conflict) {
@ -203,6 +252,12 @@ func TestGiftOperationWorkerFinishesDebitedRequestWithoutClientRetry(t *testing.
 		}
 		time.Sleep(20 * time.Millisecond)
 	}
+	if operation.CreatedAtMS == walletPaidAtMS {
+		t.Fatalf("test must distinguish room saga time from wallet transaction time: %d", walletPaidAtMS)
+	}
+	if firstPaidAt, recoveredPaidAt := lucky.paidAtMS[0].Load(), lucky.paidAtMS[1].Load(); firstPaidAt != walletPaidAtMS || recoveredPaidAt != walletPaidAtMS {
+		t.Fatalf("lucky paid_at_ms drifted from wallet fact across recovery: wallet=%d operation=%d first=%d recovered=%d", walletPaidAtMS, operation.CreatedAtMS, firstPaidAt, recoveredPaidAt)
+	}

 	replayed, err := svc.SendGift(ctx, req)
 	if err != nil {
--- a/services/room-service/internal/room/service/helpers.go
+++ b/services/room-service/internal/room/service/helpers.go
@ -214,6 +214,7 @@ func baseFromMeta(meta *roomv1.RequestMeta) command.Base {
 		Room:          meta.GetRoomId(),
 		GatewayNodeID: meta.GetGatewayNodeId(),
 		SessionID:     meta.GetSessionId(),
+		DeviceID:      meta.GetDeviceId(),
 		SentAtMS:      meta.GetSentAtMs(),
 	}
 }
@ -256,6 +257,7 @@ func requestMetaWithRoomID(meta *roomv1.RequestMeta, roomID string) *roomv1.Requ
 		RoomId:        roomID,
 		GatewayNodeId: meta.GetGatewayNodeId(),
 		SessionId:     meta.GetSessionId(),
+		DeviceId:      meta.GetDeviceId(),
 		SentAtMs:      meta.GetSentAtMs(),
 		AppCode:       meta.GetAppCode(),
 	}
--- a/services/room-service/internal/room/service/lucky_gift_test.go
+++ b/services/room-service/internal/room/service/lucky_gift_test.go
@ -10,6 +10,7 @@ import (
 	roomv1 "hyapp.local/api/proto/room/v1"
 	walletv1 "hyapp.local/api/proto/wallet/v1"
 	"hyapp/pkg/appcode"
+	"hyapp/pkg/xerr"
 	"hyapp/services/room-service/internal/integration"
 	roomservice "hyapp/services/room-service/internal/room/service"
 	"hyapp/services/room-service/internal/router"
@ -21,17 +22,20 @@ type luckyGiftTestClient struct {
 	draws       []*luckygiftv1.ExecuteLuckyGiftDrawRequest
 	batchDraws  []*luckygiftv1.BatchExecuteLuckyGiftDrawRequest
 	drawResults []*luckygiftv1.LuckyGiftDrawResult
+	// checkStrategy 让 room 测试显式区分 fixed_v2 滚动兼容与 dynamic_v3 强设备事实。
+	checkStrategy string
 }

 func (c *luckyGiftTestClient) CheckLuckyGift(_ context.Context, req *luckygiftv1.CheckLuckyGiftRequest) (*luckygiftv1.CheckLuckyGiftResponse, error) {
 	c.checks = append(c.checks, req)
 	return &luckygiftv1.CheckLuckyGiftResponse{
-		Enabled:        true,
-		Reason:         "enabled",
-		GiftId:         req.GetGiftId(),
-		PoolId:         req.GetPoolId(),
-		RuleVersion:    12,
-		ExperiencePool: "novice",
+		Enabled:         true,
+		Reason:          "enabled",
+		GiftId:          req.GetGiftId(),
+		PoolId:          req.GetPoolId(),
+		RuleVersion:     12,
+		ExperiencePool:  "novice",
+		StrategyVersion: c.checkStrategy,
 	}, nil
 }

@ -116,13 +120,22 @@ func (c *luckyGiftTestClient) BatchExecuteLuckyGiftDraw(_ context.Context, req *
 func TestSendGiftReturnsLuckyGiftDrawResult(t *testing.T) {
 	ctx := context.Background()
 	repository := mysqltest.NewRepository(t)
-	wallet := &rocketTestWallet{debits: []*walletv1.DebitGiftResponse{{
-		BillingReceiptId: "receipt-lucky",
-		CoinSpent:        100,
-		GiftPointAdded:   100,
-		HeatValue:        100,
-		GiftTypeCode:     "super_lucky",
-	}}}
+	wallet := &rocketTestWallet{debits: []*walletv1.DebitGiftResponse{
+		{
+			BillingReceiptId: "receipt-lucky",
+			CoinSpent:        100,
+			GiftPointAdded:   100,
+			HeatValue:        100,
+			GiftTypeCode:     "super_lucky",
+		},
+		{
+			BillingReceiptId: "receipt-lucky-legacy-token",
+			CoinSpent:        100,
+			GiftPointAdded:   100,
+			HeatValue:        100,
+			GiftTypeCode:     "super_lucky",
+		},
+	}}
 	luckyGift := &luckyGiftTestClient{}
 	svc := roomservice.New(roomservice.Config{
 		NodeID:         "node-lucky-test",
@ -143,7 +156,8 @@ func TestSendGiftReturnsLuckyGiftDrawResult(t *testing.T) {
 			CommandId:   "cmd-lucky",
 			ActorUserId: ownerID,
 			RoomId:      roomID,
-			SessionId:   "device-session-1",
+			SessionId:   "sess-must-not-be-device-1",
+			DeviceId:    "device-auth-session-1",
 			AppCode:     appcode.Default,
 			SentAtMs:    time.Date(2026, 5, 20, 12, 0, 0, 0, time.UTC).UnixMilli(),
 		},
@ -178,7 +192,7 @@ func TestSendGiftReturnsLuckyGiftDrawResult(t *testing.T) {
 	drawMeta := luckyGift.draws[0].GetLuckyGift()
 	if drawMeta.GetCommandId() != "cmd-lucky" ||
 		drawMeta.GetCoinSpent() != 100 ||
-		drawMeta.GetDeviceId() != "device-session-1" ||
+		drawMeta.GetDeviceId() != "device-auth-session-1" ||
 		drawMeta.GetAnchorId() != "101" ||
 		drawMeta.GetVisibleRegionId() != 9001 ||
 		drawMeta.GetSenderName() != "lucky sender" ||
@ -187,6 +201,40 @@ func TestSendGiftReturnsLuckyGiftDrawResult(t *testing.T) {
 		drawMeta.GetSenderPrettyDisplayUserId() != "HY-123456" {
 		t.Fatalf("lucky draw meta mismatch: %+v", drawMeta)
 	}
+
+	// 旧 access JWT 没有 device_id 时，room 必须原样传空以保留 fixed_v2 兼容性；
+	// 不能因为需要一个非空风控键就用 session_id 或 command_id 代替设备。
+	if _, err := svc.SendGift(ctx, &roomv1.SendGiftRequest{
+		Meta: &roomv1.RequestMeta{
+			RequestId: "req-lucky-legacy-token", CommandId: "cmd-lucky-legacy-token",
+			ActorUserId: ownerID, RoomId: roomID, SessionId: "sess-legacy-not-device",
+			AppCode: appcode.Default, SentAtMs: time.Date(2026, 5, 20, 12, 1, 0, 0, time.UTC).UnixMilli(),
+		},
+		TargetType: "user", TargetUserId: viewerID, GiftId: "rose", GiftCount: 1, PoolId: "super_lucky",
+	}); err != nil {
+		t.Fatalf("legacy-token fixed-compatible lucky send failed: %v", err)
+	}
+	legacyDraw := luckyGift.draws[len(luckyGift.draws)-1].GetLuckyGift()
+	if legacyDraw.GetDeviceId() != "" {
+		t.Fatalf("legacy-token lucky device_id=%q, want empty instead of session/command fallback", legacyDraw.GetDeviceId())
+	}
+
+	luckyGift.checkStrategy = "dynamic_v3"
+	debitsBeforeDynamicReject := len(wallet.debitRequests)
+	_, err = svc.SendGift(ctx, &roomv1.SendGiftRequest{
+		Meta: &roomv1.RequestMeta{
+			RequestId: "req-lucky-dynamic-missing-device", CommandId: "cmd-lucky-dynamic-missing-device",
+			ActorUserId: ownerID, RoomId: roomID, SessionId: "sess-still-not-a-device",
+			AppCode: appcode.Default, SentAtMs: time.Date(2026, 5, 20, 12, 2, 0, 0, time.UTC).UnixMilli(),
+		},
+		TargetType: "user", TargetUserId: viewerID, GiftId: "rose", GiftCount: 1, PoolId: "super_lucky",
+	})
+	if !xerr.IsCode(err, xerr.InvalidArgument) {
+		t.Fatalf("dynamic_v3 missing signed device_id should fail before debit, got %v", err)
+	}
+	if len(wallet.debitRequests) != debitsBeforeDynamicReject {
+		t.Fatalf("dynamic_v3 missing device reached wallet: before=%d after=%d", debitsBeforeDynamicReject, len(wallet.debitRequests))
+	}
 }

 func TestSendGiftReturnsLuckyGiftDrawResultsForMultipleTargets(t *testing.T) {
@ -221,7 +269,8 @@ func TestSendGiftReturnsLuckyGiftDrawResultsForMultipleTargets(t *testing.T) {
 			CommandId:   "cmd-lucky-multi",
 			ActorUserId: ownerID,
 			RoomId:      roomID,
-			SessionId:   "device-session-multi",
+			SessionId:   "sess-must-not-be-device-multi",
+			DeviceId:    "device-auth-session-multi",
 			AppCode:     appcode.Default,
 			SentAtMs:    time.Date(2026, 5, 20, 12, 0, 0, 0, time.UTC).UnixMilli(),
 		},
@ -251,6 +300,9 @@ func TestSendGiftReturnsLuckyGiftDrawResultsForMultipleTargets(t *testing.T) {
 	if secondDraw.GetCommandId() != "cmd-lucky-multi:target:303" || secondDraw.GetTargetUserId() != secondTargetID || secondDraw.GetCoinSpent() != 200 {
 		t.Fatalf("second target lucky draw mismatch: %+v", secondDraw)
 	}
+	if firstDraw.GetDeviceId() != "device-auth-session-multi" || secondDraw.GetDeviceId() != "device-auth-session-multi" {
+		t.Fatalf("multi-target draws must share the signed JWT device scope: first=%q second=%q", firstDraw.GetDeviceId(), secondDraw.GetDeviceId())
+	}
 	if resp.GetLuckyGift().GetCommandId() != "cmd-lucky-multi" ||
 		resp.GetLuckyGift().GetTargetUserId() != 0 ||
 		resp.GetLuckyGift().GetSelectedTierId() != "batch" ||
--- a/services/user-service/internal/service/auth/password.go
+++ b/services/user-service/internal/service/auth/password.go
@ -69,7 +69,7 @@ func (s *Service) LoginPassword(ctx context.Context, displayUserID string, passw
 	s.audit(ctx, meta, user.UserID, loginPassword, "", resultSuccess, "")
 	// 登录成功即刷新设备档案；写入是 best-effort，不影响 token 返回。
 	s.recordUserDevice(ctx, meta, user.UserID, deviceID)
-	token, err := s.issueToken(user, session.SessionID, refreshToken, session.ExpiresAtMs)
+	token, err := s.issueToken(user, session.SessionID, session.DeviceID, refreshToken, session.ExpiresAtMs)
 	if err != nil {
 		return authdomain.Token{}, err
 	}
--- a/services/user-service/internal/service/auth/quick_account.go
+++ b/services/user-service/internal/service/auth/quick_account.go
@ -123,7 +123,7 @@ func (s *Service) QuickCreateAccount(ctx context.Context, password string, regis
 			s.audit(ctx, meta, user.UserID, loginPassword, "", resultSuccess, "")
 			// 快捷账号也是可登录主体，设备档案与普通注册保持一致；机器人分支在上方已提前返回。
 			s.recordUserDevice(ctx, deviceMetaWithRegistration(meta, registration), user.UserID, registration.DeviceID)
-			token, tokenErr := s.issueToken(user, session.SessionID, refreshToken, session.ExpiresAtMs)
+			token, tokenErr := s.issueToken(user, session.SessionID, session.DeviceID, refreshToken, session.ExpiresAtMs)
 			if tokenErr != nil {
 				return authdomain.Token{}, tokenErr
 			}
--- a/services/user-service/internal/service/auth/service_test.go
+++ b/services/user-service/internal/service/auth/service_test.go
@ -40,6 +40,23 @@ func accessTokenExpUnix(t *testing.T, accessToken string) int64 {
 	return exp.Unix()
 }

+func accessTokenStringClaim(t *testing.T, accessToken string, name string) string {
+	t.Helper()
+	parser := jwt.NewParser(jwt.WithValidMethods([]string{"HS256"}), jwt.WithoutClaimsValidation())
+	parsed, err := parser.Parse(accessToken, func(token *jwt.Token) (any, error) {
+		return []byte("test-secret"), nil
+	})
+	if err != nil || !parsed.Valid {
+		t.Fatalf("parse access token claim %s failed: token=%q err=%v", name, accessToken, err)
+	}
+	claims, ok := parsed.Claims.(jwt.MapClaims)
+	if !ok {
+		t.Fatalf("access token claim set has unexpected type %T", parsed.Claims)
+	}
+	value, _ := claims[name].(string)
+	return value
+}
+
 type memoryDecisionCache struct {
 	mu      sync.Mutex
 	ip      map[string]authservice.IPDecision
@ -330,6 +347,10 @@ func TestThirdPartyUserSetsPasswordThenLogsIn(t *testing.T) {
 	if got, want := accessTokenExpUnix(t, thirdToken.AccessToken), now.Unix()+testAccessTokenTTLSec; got != want {
 		t.Fatalf("third-party access token exp mismatch: got=%d want=%d", got, want)
 	}
+	if got := accessTokenStringClaim(t, thirdToken.AccessToken, "device_id"); got != "dev-ios" {
+		// 登录签发必须使用 auth_session 的设备绑定，不能让下游拿 sid 代替设备风控 scope。
+		t.Fatalf("third-party access token device_id=%q, want dev-ios", got)
+	}
 	if thirdToken.ProfileCompleted || thirdToken.OnboardingStatus != string(userdomain.OnboardingStatusProfileRequired) {
 		t.Fatalf("new third-party user must require onboarding: %+v", thirdToken)
 	}
@ -365,6 +386,9 @@ func TestThirdPartyUserSetsPasswordThenLogsIn(t *testing.T) {
 	if got, want := accessTokenExpUnix(t, loginToken.AccessToken), now.Unix()+testAccessTokenTTLSec; got != want {
 		t.Fatalf("password login access token exp mismatch: got=%d want=%d", got, want)
 	}
+	if got := accessTokenStringClaim(t, loginToken.AccessToken, "device_id"); got != "ios" {
+		t.Fatalf("password access token device_id=%q, want ios", got)
+	}
 	var auditedAppVersion string
 	var auditedBuildNumber string
 	if err := repository.RawDB().QueryRowContext(ctx, `
@ -402,6 +426,9 @@ func TestThirdPartyUserSetsPasswordThenLogsIn(t *testing.T) {
 	if got, want := accessTokenExpUnix(t, refreshToken.AccessToken), now.Unix()+testAccessTokenTTLSec; got != want {
 		t.Fatalf("refresh access token exp mismatch: got=%d want=%d", got, want)
 	}
+	if got := accessTokenStringClaim(t, refreshToken.AccessToken, "device_id"); got != "ios" {
+		t.Fatalf("refreshed access token device_id=%q, want ios", got)
+	}
 	if got := cache.revoked["lalu:"+loginToken.SessionID]; got != "REFRESH_ROTATED" {
 		t.Fatalf("refresh must denylist rotated access session, got %q", got)
 	}
@ -1196,6 +1223,10 @@ func TestIssueAccessTokenForSessionCarriesProfileRequiredOnboardingStatusWithout
 	if reissued.SessionID != token.SessionID || reissued.RefreshToken != "" {
 		t.Fatalf("access resign must reuse session and not mint refresh token: %+v", reissued)
 	}
+	if got := accessTokenStringClaim(t, reissued.AccessToken, "device_id"); got != "dev-ios" {
+		// access resign 不接受客户端 device_id，只能从已校验的 active session 回读原绑定值。
+		t.Fatalf("reissued access token device_id=%q, want dev-ios", got)
+	}
 }

 func TestIssueAccessTokenForSessionCapsTTLAtSessionExpiry(t *testing.T) {
--- a/services/user-service/internal/service/auth/third_party.go
+++ b/services/user-service/internal/service/auth/third_party.go
@ -248,7 +248,7 @@ func (s *Service) loginExistingThirdParty(ctx context.Context, identity authdoma
 	// 老用户换机三方登录也要立即出现在设备 tab；header 缺失时回退 body 设备字段。
 	s.recordUserDevice(ctx, deviceMetaWithRegistration(meta, registration), user.UserID, registration.DeviceID)
 	// isNewUser=false 表示本次只创建 session，没有创建用户。
-	token, err := s.issueToken(user, session.SessionID, refreshToken, session.ExpiresAtMs)
+	token, err := s.issueToken(user, session.SessionID, session.DeviceID, refreshToken, session.ExpiresAtMs)
 	if err != nil {
 		return authdomain.Token{}, false, err
 	}
@ -300,7 +300,7 @@ func (s *Service) registerExistingThirdParty(ctx context.Context, identity authd
 	s.audit(ctx, meta, updated.UserID, loginThird, identity.Provider, resultSuccess, "")
 	// 补齐资料完成注册同样属于认证成功，设备档案与 session 创建保持同步。
 	s.recordUserDevice(ctx, deviceMetaWithRegistration(meta, registration), updated.UserID, registration.DeviceID)
-	token, err := s.issueToken(updated, session.SessionID, refreshToken, session.ExpiresAtMs)
+	token, err := s.issueToken(updated, session.SessionID, session.DeviceID, refreshToken, session.ExpiresAtMs)
 	if err != nil {
 		return authdomain.Token{}, false, err
 	}
@ -360,7 +360,7 @@ func (s *Service) createThirdPartyUser(ctx context.Context, provider string, pro
 			s.audit(ctx, meta, user.UserID, loginThird, provider, resultSuccess, "")
 			// 新注册用户的首个设备档案与注册事务同请求写入，后台无需等下次登录。
 			s.recordUserDevice(ctx, deviceMetaWithRegistration(meta, registration), user.UserID, registration.DeviceID)
-			token, tokenErr := s.issueToken(user, session.SessionID, refreshToken, session.ExpiresAtMs)
+			token, tokenErr := s.issueToken(user, session.SessionID, session.DeviceID, refreshToken, session.ExpiresAtMs)
 			if tokenErr != nil {
 				return authdomain.Token{}, false, tokenErr
 			}
@ -444,7 +444,7 @@ func (s *Service) createRegisteredThirdPartyUser(ctx context.Context, provider s
 			s.audit(ctx, meta, user.UserID, loginThird, provider, resultSuccess, "")
 			// 注册专用入口创建的 completed 用户同样落首个设备档案。
 			s.recordUserDevice(ctx, deviceMetaWithRegistration(meta, registration), user.UserID, registration.DeviceID)
-			token, tokenErr := s.issueToken(user, session.SessionID, refreshToken, session.ExpiresAtMs)
+			token, tokenErr := s.issueToken(user, session.SessionID, session.DeviceID, refreshToken, session.ExpiresAtMs)
 			if tokenErr != nil {
 				return authdomain.Token{}, false, tokenErr
 			}
--- a/services/user-service/internal/service/auth/token.go
+++ b/services/user-service/internal/service/auth/token.go
@ -82,7 +82,7 @@ func (s *Service) RefreshToken(ctx context.Context, refreshToken string, deviceI
 	s.audit(ctx, meta, session.UserID, loginRefresh, "", resultSuccess, "")
 	// refresh 是登录态存续的主路径；老设备升级新客户端后，设备档案主要在这里补齐。
 	s.recordUserDevice(ctx, meta, session.UserID, deviceID)
-	return s.issueToken(user, newSession.SessionID, newRefreshToken, newSession.ExpiresAtMs)
+	return s.issueToken(user, newSession.SessionID, newSession.DeviceID, newRefreshToken, newSession.ExpiresAtMs)
 }

 // IssueAccessTokenForSession 基于当前 active session 重签 access token，不轮换 refresh token。
@ -124,7 +124,7 @@ func (s *Service) IssueAccessTokenForSession(ctx context.Context, userID int64,
 	}

 	s.audit(ctx, meta, userID, loginAccessResign, "", resultSuccess, "")
-	return s.issueToken(user, session.SessionID, "", session.ExpiresAtMs)
+	return s.issueToken(user, session.SessionID, session.DeviceID, "", session.ExpiresAtMs)
 }

 // AdminIssueUserAccessToken 供后台按用户当前最新 active session 重签 access token。
@ -159,7 +159,7 @@ func (s *Service) AdminIssueUserAccessToken(ctx context.Context, userID int64, m
 	}

 	// refreshToken 传空：后台没有轮换会话的理由，响应中也绝不携带 refresh 原文。
-	token, err := s.issueToken(user, session.SessionID, "", session.ExpiresAtMs)
+	token, err := s.issueToken(user, session.SessionID, session.DeviceID, "", session.ExpiresAtMs)
 	if err != nil {
 		return authdomain.Token{}, authdomain.Session{}, err
 	}
@ -273,7 +273,7 @@ func (s *Service) newSession(appCode string, userID int64, deviceID string) (aut
 	}, refreshToken, nil
 }

-func (s *Service) issueToken(user userdomain.User, sessionID string, refreshToken string, sessionExpiresAtMs int64) (authdomain.Token, error) {
+func (s *Service) issueToken(user userdomain.User, sessionID string, deviceID string, refreshToken string, sessionExpiresAtMs int64) (authdomain.Token, error) {
 	now := s.now()
 	expiresInSec := s.cfg.AccessTokenTTLSec
 	expiresAt := now.Add(time.Duration(expiresInSec) * time.Second)
@ -294,6 +294,8 @@ func (s *Service) issueToken(user userdomain.User, sessionID string, refreshToke
 	onboardingStatus := tokenOnboardingStatus(user)
 	// JWT 只携带内部 user_id；客户端展示和人工输入统一使用 display_user_id。
 	// user_id 必须写成字符串：雪花 ID 超过 JS/JSON number 的安全整数范围，写成 number 会在 gateway 解析时丢精度。
+	// device_id 只能来自已落库 auth_session 的绑定值；心跳/资料完成重签也必须从同一 session 回读，
+	// 不允许 gateway 用 sid 或业务 command_id 伪造设备风控作用域。
 	claims := jwt.MapClaims{
 		"iss":                           s.cfg.Issuer,
 		"app_code":                      appcode.Normalize(user.AppCode),
@ -306,6 +308,7 @@ func (s *Service) issueToken(user userdomain.User, sessionID string, refreshToke
 		"profile_completed":             user.ProfileCompleted,
 		"onboarding_status":             onboardingStatus,
 		"sid":                           sessionID,
+		"device_id":                     strings.TrimSpace(deviceID),
 		"typ":                           "access",
 		"iat":                           now.Unix(),
 		"exp":                           expiresAt.Unix(),
--- a/services/wallet-service/internal/domain/ledger/gift.go
+++ b/services/wallet-service/internal/domain/ledger/gift.go
@ -106,6 +106,14 @@ type Receipt struct {
 	GiftIncomeCoinAmount int64
 	// GiftIncomeBalanceAfter 是收礼人 COIN 入账后的余额；没有返币时为 0。
 	GiftIncomeBalanceAfter int64
+	// Recharge* 是扣费事务固化的 sender 充值画像。它们跟随 gift transaction metadata 幂等重放，
+	// 防止 lucky-gift 因重试时间不同进入另一概率层或丢失“充值后五分钟”加成。
+	RechargeSevenDayCoins  int64
+	RechargeThirtyDayCoins int64
+	LastRechargedAtMS      int64
+	// PaidAtMS 是 wallet owner 创建成功交易行的 UTC epoch ms。它跟 transaction_id 一起构成不可变扣费事实，
+	// room 恢复和 lucky 重放必须复用它，不能改用 saga 创建时间或恢复执行时间。
+	PaidAtMS int64
 }

 // BatchGiftTargetReceipt 保留批量送礼里每个目标的独立交易回执。
--- a/services/wallet-service/internal/service/wallet/service_test.go
+++ b/services/wallet-service/internal/service/wallet/service_test.go
@ -398,6 +398,15 @@ func TestBatchDebitGiftSettlesAllTargetsAtomically(t *testing.T) {
 	if again.Aggregate.CoinSpent != receipt.Aggregate.CoinSpent || again.Targets[0].Receipt.TransactionID != receipt.Targets[0].Receipt.TransactionID || repository.CountRows("wallet_transactions", "command_id IN (?, ?)", "cmd-gift-batch:target:10002", "cmd-gift-batch:target:10003") != 2 {
 		t.Fatalf("batch idempotency mismatch: first=%+v again=%+v", receipt, again)
 	}
+	if receipt.Aggregate.PaidAtMS <= 0 || again.Aggregate.PaidAtMS != receipt.Aggregate.PaidAtMS {
+		t.Fatalf("batch aggregate paid_at_ms drifted: first=%d replay=%d", receipt.Aggregate.PaidAtMS, again.Aggregate.PaidAtMS)
+	}
+	for index, target := range receipt.Targets {
+		walletCreatedAtMS := repository.TransactionCreatedAtMS(target.CommandID)
+		if target.Receipt.PaidAtMS != walletCreatedAtMS || again.Targets[index].Receipt.PaidAtMS != walletCreatedAtMS || target.Receipt.PaidAtMS != receipt.Aggregate.PaidAtMS {
+			t.Fatalf("batch target paid_at_ms is not stable wallet fact: target=%s created=%d first=%d replay=%d aggregate=%d", target.CommandID, walletCreatedAtMS, target.Receipt.PaidAtMS, again.Targets[index].Receipt.PaidAtMS, receipt.Aggregate.PaidAtMS)
+		}
+	}
 	for _, userID := range []int64{10002, 10003} {
 		balances, err := svc.GetBalances(context.Background(), userID, []string{ledger.AssetCoin})
 		if err != nil {
@ -1575,6 +1584,8 @@ func TestDebitGiftIsIdempotent(t *testing.T) {
 	if err != nil {
 		t.Fatalf("first debit failed: %v", err)
 	}
+	// 模拟旧版本 transaction metadata 未写 paid_at_ms；重放仍必须读取 wallet_transactions.created_at_ms。
+	repository.RemoveGiftPaidAtMetadata(command.CommandID)
 	second, err := svc.DebitGift(context.Background(), command)
 	if err != nil {
 		t.Fatalf("second debit failed: %v", err)
@ -1583,6 +1594,11 @@ func TestDebitGiftIsIdempotent(t *testing.T) {
 	if first.BillingReceiptID != second.BillingReceiptID || second.BalanceAfter != 80 || second.CoinSpent != 20 {
 		t.Fatalf("idempotency mismatch: first=%+v second=%+v", first, second)
 	}
+	transactionCreatedAtMS := repository.TransactionCreatedAtMS(command.CommandID)
+	if first.PaidAtMS <= 0 || first.PaidAtMS != transactionCreatedAtMS || second.PaidAtMS != transactionCreatedAtMS {
+		// paid_at_ms 必须来自首次 wallet transaction，而不是每次 RPC 重放的服务时钟。
+		t.Fatalf("gift paid_at_ms is not stable wallet fact: created=%d first=%d second=%d", transactionCreatedAtMS, first.PaidAtMS, second.PaidAtMS)
+	}
 	if got := repository.CountRows("wallet_transactions", "command_id = ?", command.CommandID); got != 1 {
 		t.Fatalf("idempotent command should write one transaction, got %d", got)
 	}
--- a/services/wallet-service/internal/storage/mysql/gift_balance_version_test.go
+++ b/services/wallet-service/internal/storage/mysql/gift_balance_version_test.go
@ -31,8 +31,8 @@ func TestGiftSenderBalanceVersionAfterCountsEverySenderLedgerEntry(t *testing.T)
 }

 func TestGiftReceiptReplayAndBatchAggregatePreserveBalanceVersion(t *testing.T) {
-	first := receiptFromGiftMetadata("tx-1", giftMetadata{BillingReceipt: "receipt-1", BalanceAfter: 900, BalanceVersion: 11})
-	last := receiptFromGiftMetadata("tx-2", giftMetadata{BillingReceipt: "receipt-2", BalanceAfter: 800, BalanceVersion: 12})
+	first := receiptFromGiftMetadata("tx-1", giftMetadata{BillingReceipt: "receipt-1", BalanceAfter: 900, BalanceVersion: 11, PaidAtMS: 1_700_000_000_000})
+	last := receiptFromGiftMetadata("tx-2", giftMetadata{BillingReceipt: "receipt-2", BalanceAfter: 800, BalanceVersion: 12, PaidAtMS: 1_700_000_000_000})
 	if first.BalanceVersion != 11 || last.BalanceVersion != 12 {
 		t.Fatalf("metadata replay lost balance version: first=%+v last=%+v", first, last)
 	}
@ -43,7 +43,17 @@ func TestGiftReceiptReplayAndBatchAggregatePreserveBalanceVersion(t *testing.T)
 	if err != nil {
 		t.Fatalf("aggregate gift receipts: %v", err)
 	}
-	if aggregate.BalanceAfter != 800 || aggregate.BalanceVersion != 12 {
+	if aggregate.BalanceAfter != 800 || aggregate.BalanceVersion != 12 || aggregate.PaidAtMS != 1_700_000_000_000 {
 		t.Fatalf("aggregate must expose final sender snapshot: %+v", aggregate)
 	}
 }
+
+func TestAggregateGiftReceiptsRejectsDifferentWalletPaidTimes(t *testing.T) {
+	_, err := aggregateGiftReceipts([]ledger.BatchGiftTargetReceipt{
+		{Receipt: ledger.Receipt{PaidAtMS: 1_700_000_000_000}},
+		{Receipt: ledger.Receipt{PaidAtMS: 1_700_000_000_001}},
+	})
+	if err == nil {
+		t.Fatal("batch receipts with different wallet paid_at_ms must fail closed")
+	}
+}
--- a/services/wallet-service/internal/storage/mysql/gift_batch_debit_repository.go
+++ b/services/wallet-service/internal/storage/mysql/gift_batch_debit_repository.go
@ -72,7 +72,6 @@ func (r *Repository) BatchDebitGift(ctx context.Context, command ledger.BatchDeb
 		}
 		return ledger.BatchGiftReceipt{Aggregate: aggregate, Targets: targetReceipts}, nil
 	}
-
 	totalGiftQuantity, err := checkedMul(int64(command.GiftCount), int64(len(command.Targets)))
 	if err != nil {
 		return ledger.BatchGiftReceipt{}, err
@ -83,6 +82,12 @@ func (r *Repository) BatchDebitGift(ctx context.Context, command ledger.BatchDeb
 		return ledger.BatchGiftReceipt{}, err
 	}
 	giftConfig := resolvedSource.GiftConfig
+	// 批量钱包命令只承载真实用户多目标扣费，不存在 RobotGift 语义；同一 sender 共享一次查询，
+	// 每个目标交易固化同一快照，避免 room-service 拆成多个 lucky draw 时因目标顺序或重试时刻跨层。
+	rechargeSnapshot, err := r.getLuckyGiftRechargeSnapshot(ctx, tx, command.SenderUserID, giftConfig.GiftTypeCode, nowMs)
+	if err != nil {
+		return ledger.BatchGiftReceipt{}, err
+	}
 	price := resolvedSource.Price
 	chargeAssetType := price.ChargeAssetType
 	if chargeSource == giftChargeSourceBag {
@ -344,6 +349,10 @@ func (r *Repository) BatchDebitGift(ctx context.Context, command ledger.BatchDeb
 			GiftIncomeRatioPercent:        giftIncomeRatio.Percent,
 			GiftIncomeRatioRegionID:       giftIncomeRatioRegionID,
 			GiftIncomeBalanceAfter:        giftIncomeBalanceAfter,
+			RechargeSevenDayCoins:         rechargeSnapshot.SevenDayCoins,
+			RechargeThirtyDayCoins:        rechargeSnapshot.ThirtyDayCoins,
+			LastRechargedAtMS:             rechargeSnapshot.LastAtMS,
+			PaidAtMS:                      nowMs,
 			BillingReceipt:                billingReceiptID(command.AppCode, target.CommandID),
 			SenderUserID:                  command.SenderUserID,
 			SenderRegionID:                command.SenderRegionID,
--- a/services/wallet-service/internal/storage/mysql/gift_debit_repository.go
+++ b/services/wallet-service/internal/storage/mysql/gift_debit_repository.go
@ -65,6 +65,14 @@ func (r *Repository) DebitGift(ctx context.Context, command ledger.DebitGiftComm
 	if err != nil {
 		return ledger.Receipt{}, err
 	}
+	rechargeSnapshot := luckyGiftRechargeSnapshot{}
+	if !command.RobotGift {
+		// 画像必须在扣费交易内读取并随交易快照落库；若放到 room/lucky 重试阶段实时查询，同一 command_id 可能因时间推进改变分层。
+		rechargeSnapshot, err = r.getLuckyGiftRechargeSnapshot(ctx, tx, command.SenderUserID, giftConfig.GiftTypeCode, nowMs)
+		if err != nil {
+			return ledger.Receipt{}, err
+		}
+	}

 	roomContributionRatio, roomContributionRatioRegionID, err := r.resolveGlobalGiftDiamondRatio(ctx, tx, command.AppCode, giftConfig.GiftTypeCode)
 	if err != nil {
@ -274,6 +282,10 @@ func (r *Repository) DebitGift(ctx context.Context, command ledger.DebitGiftComm
 		GiftIncomeRatioPercent:        giftIncomeRatio.Percent,
 		GiftIncomeRatioRegionID:       giftIncomeRatioRegionID,
 		GiftIncomeBalanceAfter:        giftIncomeBalanceAfter,
+		RechargeSevenDayCoins:         rechargeSnapshot.SevenDayCoins,
+		RechargeThirtyDayCoins:        rechargeSnapshot.ThirtyDayCoins,
+		LastRechargedAtMS:             rechargeSnapshot.LastAtMS,
+		PaidAtMS:                      nowMs,
 		BillingReceipt:                billingReceiptID(command.AppCode, command.CommandID),
 		SenderUserID:                  command.SenderUserID,
 		SenderRegionID:                command.SenderRegionID,
--- a/services/wallet-service/internal/storage/mysql/gift_ledger_helpers.go
+++ b/services/wallet-service/internal/storage/mysql/gift_ledger_helpers.go
@ -100,6 +100,13 @@ func aggregateGiftReceipts(targets []ledger.BatchGiftTargetReceipt) (ledger.Rece
 		if aggregate.HostPointTemplateVersion == "" {
 			aggregate.HostPointTemplateVersion = receipt.HostPointTemplateVersion
 		}
+		if aggregate.PaidAtMS == 0 {
+			aggregate.PaidAtMS = receipt.PaidAtMS
+		} else if receipt.PaidAtMS > 0 && aggregate.PaidAtMS != receipt.PaidAtMS {
+			// BatchDebitGift 在同一个 MySQL 事务、同一个 nowMs 创建全部目标交易；时间不一致说明
+			// 回执集合被破坏，不能选一个时间继续让 lucky 把子抽分散到不同 UTC 风控窗口。
+			return ledger.Receipt{}, fmt.Errorf("wallet batch gift paid_at_ms mismatch")
+		}

 		aggregate.BalanceAfter = receipt.BalanceAfter
 		aggregate.BalanceVersion = receipt.BalanceVersion
--- a/services/wallet-service/internal/storage/mysql/lucky_gift_recharge_snapshot.go
+++ b/services/wallet-service/internal/storage/mysql/lucky_gift_recharge_snapshot.go
@ -0,0 +1,56 @@
+package mysql
+
+import (
+	"context"
+	"database/sql"
+	"time"
+
+	"hyapp/pkg/appcode"
+)
+
+// luckyGiftRechargeSnapshot 是 wallet 在送礼交易内固化给 lucky-gift 的充值画像。
+// 它只按单个用户的 (app_code,user_id,created_at_ms) 索引读取最近 30 个 UTC 自然日，
+// 不扫描全站充值流水；快照写进 gift transaction metadata 后，幂等重放永远返回首次结果。
+type luckyGiftRechargeSnapshot struct {
+	SevenDayCoins  int64
+	ThirtyDayCoins int64
+	LastAtMS       int64
+}
+
+func (r *Repository) getLuckyGiftRechargeSnapshot(ctx context.Context, tx *sql.Tx, userID int64, giftTypeCode string, nowMS int64) (luckyGiftRechargeSnapshot, error) {
+	if userID <= 0 || !isLuckyGiftType(giftTypeCode) {
+		return luckyGiftRechargeSnapshot{}, nil
+	}
+	now := time.UnixMilli(nowMS).UTC()
+	dayStart := time.Date(now.Year(), now.Month(), now.Day(), 0, 0, 0, 0, time.UTC)
+	sevenDayStartMS := dayStart.AddDate(0, 0, -6).UnixMilli()
+	thirtyDayStartMS := dayStart.AddDate(0, 0, -29).UnixMilli()
+	// 业务时间范围统一使用 [start_ms,end_ms)。加 1ms 让发生在本事务时钟同一毫秒的已完成充值也属于“含当天”快照。
+	endMS := nowMS + 1
+	if endMS < nowMS { // int64 极值只可能来自坏时钟；退回不溢出的上界，避免范围反转。
+		endMS = nowMS
+	}
+	var snapshot luckyGiftRechargeSnapshot
+	err := tx.QueryRowContext(ctx, `
+		SELECT
+		  COALESCE(SUM(CASE WHEN created_at_ms >= ? THEN coin_amount ELSE 0 END), 0),
+		  COALESCE(SUM(coin_amount), 0),
+		  COALESCE(MAX(created_at_ms), 0)
+		FROM wallet_recharge_records
+		WHERE app_code = ? AND user_id = ?
+		  AND created_at_ms >= ? AND created_at_ms < ?`,
+		sevenDayStartMS,
+		appcode.FromContext(ctx), userID,
+		thirtyDayStartMS, endMS,
+	).Scan(&snapshot.SevenDayCoins, &snapshot.ThirtyDayCoins, &snapshot.LastAtMS)
+	return snapshot, err
+}
+
+func isLuckyGiftType(giftTypeCode string) bool {
+	switch giftTypeCode {
+	case "lucky", "super_lucky":
+		return true
+	default:
+		return false
+	}
+}
--- a/services/wallet-service/internal/storage/mysql/lucky_gift_recharge_snapshot_test.go
+++ b/services/wallet-service/internal/storage/mysql/lucky_gift_recharge_snapshot_test.go
@ -0,0 +1,63 @@
+package mysql
+
+import (
+	"context"
+	"regexp"
+	"testing"
+	"time"
+
+	"github.com/DATA-DOG/go-sqlmock"
+	"hyapp/pkg/appcode"
+)
+
+func TestGetLuckyGiftRechargeSnapshotUsesUTCNaturalDayWindows(t *testing.T) {
+	db, mock, err := sqlmock.New()
+	if err != nil {
+		t.Fatalf("create sqlmock: %v", err)
+	}
+	defer db.Close()
+	mock.ExpectBegin()
+	tx, err := db.Begin()
+	if err != nil {
+		t.Fatalf("begin transaction: %v", err)
+	}
+	defer tx.Rollback()
+
+	now := time.Date(2026, 7, 12, 23, 59, 59, 999_000_000, time.UTC)
+	sevenStart := time.Date(2026, 7, 6, 0, 0, 0, 0, time.UTC).UnixMilli()
+	thirtyStart := time.Date(2026, 6, 13, 0, 0, 0, 0, time.UTC).UnixMilli()
+	query := regexp.QuoteMeta(`
+		SELECT
+		  COALESCE(SUM(CASE WHEN created_at_ms >= ? THEN coin_amount ELSE 0 END), 0),
+		  COALESCE(SUM(coin_amount), 0),
+		  COALESCE(MAX(created_at_ms), 0)
+		FROM wallet_recharge_records
+		WHERE app_code = ? AND user_id = ?
+		  AND created_at_ms >= ? AND created_at_ms < ?`)
+	mock.ExpectQuery(query).
+		WithArgs(sevenStart, "fami", int64(42), thirtyStart, now.UnixMilli()+1).
+		WillReturnRows(sqlmock.NewRows([]string{"seven", "thirty", "last"}).AddRow(700, 3_000, now.Add(-time.Minute).UnixMilli()))
+
+	repo := &Repository{db: db}
+	snapshot, err := repo.getLuckyGiftRechargeSnapshot(appcode.WithContext(context.Background(), "fami"), tx, 42, "super_lucky", now.UnixMilli())
+	if err != nil {
+		t.Fatalf("get recharge snapshot: %v", err)
+	}
+	if snapshot.SevenDayCoins != 700 || snapshot.ThirtyDayCoins != 3_000 || snapshot.LastAtMS != now.Add(-time.Minute).UnixMilli() {
+		t.Fatalf("unexpected snapshot: %+v", snapshot)
+	}
+	if err := mock.ExpectationsWereMet(); err != nil {
+		t.Fatalf("sql expectations: %v", err)
+	}
+}
+
+func TestGetLuckyGiftRechargeSnapshotSkipsNonLuckyGift(t *testing.T) {
+	repo := &Repository{}
+	snapshot, err := repo.getLuckyGiftRechargeSnapshot(context.Background(), nil, 42, "normal", 1)
+	if err != nil {
+		t.Fatalf("non-lucky snapshot: %v", err)
+	}
+	if snapshot != (luckyGiftRechargeSnapshot{}) {
+		t.Fatalf("non-lucky gift must not expose recharge profile: %+v", snapshot)
+	}
+}
--- a/services/wallet-service/internal/storage/mysql/metadata.go
+++ b/services/wallet-service/internal/storage/mysql/metadata.go
@ -31,11 +31,18 @@ type giftMetadata struct {
 	HeatValue      int64 `json:"heat_value"`
 	BalanceAfter   int64 `json:"balance_after"`
 	// BalanceVersion 与 BalanceAfter 一起固化 sender 账后快照；重试不能读取当前账户版本冒充首次结果。
-	BalanceVersion                int64  `json:"balance_version,omitempty"`
-	GiftIncomeCoinAmount          int64  `json:"gift_income_coin_amount"`
-	GiftIncomeRatioPercent        string `json:"gift_income_ratio_percent,omitempty"`
-	GiftIncomeRatioRegionID       int64  `json:"gift_income_ratio_region_id,omitempty"`
-	GiftIncomeBalanceAfter        int64  `json:"gift_income_balance_after,omitempty"`
+	BalanceVersion          int64  `json:"balance_version,omitempty"`
+	GiftIncomeCoinAmount    int64  `json:"gift_income_coin_amount"`
+	GiftIncomeRatioPercent  string `json:"gift_income_ratio_percent,omitempty"`
+	GiftIncomeRatioRegionID int64  `json:"gift_income_ratio_region_id,omitempty"`
+	GiftIncomeBalanceAfter  int64  `json:"gift_income_balance_after,omitempty"`
+	// 充值画像只写入幸运礼物真实扣费的交易快照；旧交易没有这些字段时 JSON 解码自然回落为 0，保持回放兼容。
+	RechargeSevenDayCoins  int64 `json:"recharge_seven_day_coins,omitempty"`
+	RechargeThirtyDayCoins int64 `json:"recharge_thirty_day_coins,omitempty"`
+	LastRechargedAtMS      int64 `json:"last_recharged_at_ms,omitempty"`
+	// PaidAtMS 与 wallet_transactions.created_at_ms 同源；写进 metadata 让新交易直接重放，
+	// 历史 metadata 缺字段时 receipt 查询会从交易主表创建时间补齐。
+	PaidAtMS                      int64  `json:"paid_at_ms,omitempty"`
 	BillingReceipt                string `json:"billing_receipt_id"`
 	SenderUserID                  int64  `json:"sender_user_id"`
 	SenderRegionID                int64  `json:"sender_region_id"`
--- a/services/wallet-service/internal/storage/mysql/receipts.go
+++ b/services/wallet-service/internal/storage/mysql/receipts.go
@ -13,19 +13,23 @@ import (

 func (r *Repository) receiptForGiftTransaction(ctx context.Context, tx *sql.Tx, transactionID string) (ledger.Receipt, error) {
 	var metadataJSON string
+	var createdAtMS int64
 	if err := tx.QueryRowContext(ctx,
-		`SELECT COALESCE(CAST(metadata_json AS CHAR), '{}')
+		`SELECT COALESCE(CAST(metadata_json AS CHAR), '{}'), created_at_ms
 		 FROM wallet_transactions
 		 WHERE app_code = ? AND transaction_id = ?`,
 		appcode.FromContext(ctx),
 		transactionID,
-	).Scan(&metadataJSON); err != nil {
+	).Scan(&metadataJSON, &createdAtMS); err != nil {
 		return ledger.Receipt{}, err
 	}
 	var metadata giftMetadata
 	if err := json.Unmarshal([]byte(metadataJSON), &metadata); err != nil {
 		return ledger.Receipt{}, err
 	}
+	// wallet_transactions.created_at_ms 始终是 owner 权威时间。metadata 的副本只用于首次事务内
+	// 直接构造回执；幂等回读无条件以主表覆盖，旧交易缺字段和异常副本都不能改变扣费归属。
+	metadata.PaidAtMS = createdAtMS
 	return receiptFromGiftMetadata(transactionID, metadata), nil
 }

@ -67,6 +71,10 @@ func receiptFromGiftMetadata(transactionID string, metadata giftMetadata) ledger
 		ChargeSource:                normalizeGiftChargeSource(metadata.ChargeSource, metadata.EntitlementID),
 		GiftIncomeCoinAmount:        metadata.GiftIncomeCoinAmount,
 		GiftIncomeBalanceAfter:      metadata.GiftIncomeBalanceAfter,
+		RechargeSevenDayCoins:       metadata.RechargeSevenDayCoins,
+		RechargeThirtyDayCoins:      metadata.RechargeThirtyDayCoins,
+		LastRechargedAtMS:           metadata.LastRechargedAtMS,
+		PaidAtMS:                    metadata.PaidAtMS,
 	}
 }

--- a/services/wallet-service/internal/testutil/mysqltest/mysqltest.go
+++ b/services/wallet-service/internal/testutil/mysqltest/mysqltest.go
@ -72,6 +72,34 @@ func (r *Repository) CountRows(table string, where string, args ...any) int {
 	return count
 }

+// TransactionCreatedAtMS 读取 wallet owner 固化的交易创建时间，供跨服务契约测试核对回执 paid_at_ms。
+// 测试只按唯一 command_id 查询，避免把服务时钟近似值误当成账务事实。
+func (r *Repository) TransactionCreatedAtMS(commandID string) int64 {
+	r.t.Helper()
+	var createdAtMS int64
+	if err := r.schema.DB.QueryRowContext(context.Background(), `
+		SELECT created_at_ms
+		FROM wallet_transactions
+		WHERE command_id = ?
+	`, commandID).Scan(&createdAtMS); err != nil {
+		r.t.Fatalf("query wallet transaction created_at_ms failed: %v", err)
+	}
+	return createdAtMS
+}
+
+// RemoveGiftPaidAtMetadata 模拟 paid_at_ms 契约上线前创建的历史 gift transaction。
+// 交易主表 created_at_ms 保留不变，重放必须从 owner 主表恢复同一个时间。
+func (r *Repository) RemoveGiftPaidAtMetadata(commandID string) {
+	r.t.Helper()
+	if _, err := r.schema.DB.ExecContext(context.Background(), `
+		UPDATE wallet_transactions
+		SET metadata_json = JSON_REMOVE(metadata_json, '$.paid_at_ms')
+		WHERE command_id = ?
+	`, commandID); err != nil {
+		r.t.Fatalf("remove gift paid_at_ms metadata failed: %v", err)
+	}
+}
+
 // SetRechargeProductCode overwrites product_code to model legacy rows created before code matched product_name.
 func (r *Repository) SetRechargeProductCode(productID int64, productCode string) {
 	r.t.Helper()
--- a/services/wallet-service/internal/transport/grpc/gift.go
+++ b/services/wallet-service/internal/transport/grpc/gift.go
@ -159,5 +159,9 @@ func debitGiftResponseFromReceipt(receipt ledger.Receipt) *walletv1.DebitGiftRes
 		ChargeSource:                receipt.ChargeSource,
 		GiftIncomeCoinAmount:        receipt.GiftIncomeCoinAmount,
 		GiftIncomeBalanceAfter:      receipt.GiftIncomeBalanceAfter,
+		RechargeSevenDayCoins:       receipt.RechargeSevenDayCoins,
+		RechargeThirtyDayCoins:      receipt.RechargeThirtyDayCoins,
+		LastRechargedAtMs:           receipt.LastRechargedAtMS,
+		PaidAtMs:                    receipt.PaidAtMS,
 	}
 }
--- a/services/wallet-service/internal/transport/grpc/gift_balance_version_test.go
+++ b/services/wallet-service/internal/transport/grpc/gift_balance_version_test.go
@ -7,8 +7,8 @@ import (
 )

 func TestDebitGiftResponseFromReceiptIncludesBalanceVersion(t *testing.T) {
-	response := debitGiftResponseFromReceipt(ledger.Receipt{BalanceAfter: 1234, BalanceVersion: 17})
-	if response.GetBalanceAfter() != 1234 || response.GetBalanceVersion() != 17 {
+	response := debitGiftResponseFromReceipt(ledger.Receipt{BalanceAfter: 1234, BalanceVersion: 17, PaidAtMS: 1_700_000_000_000})
+	if response.GetBalanceAfter() != 1234 || response.GetBalanceVersion() != 17 || response.GetPaidAtMs() != 1_700_000_000_000 {
 		t.Fatalf("wallet protobuf response lost sender balance snapshot: %+v", response)
 	}
 }
--- a/tools/lucky-gift-room-demo/index.html
+++ b/tools/lucky-gift-room-demo/index.html
--- a/tools/lucky-gift-room-demo/main.go
+++ b/tools/lucky-gift-room-demo/main.go
@ -0,0 +1,66 @@
+package main
+
+import (
+	"context"
+	"errors"
+	"flag"
+	"log"
+	"net/http"
+	"os"
+	"os/signal"
+	"syscall"
+	"time"
+)
+
+func main() {
+	var config demoConfig
+	flag.StringVar(&config.ListenAddr, "listen", envOr("LUCKY_ROOM_DEMO_LISTEN", "127.0.0.1:8789"), "local demo listen address")
+	flag.StringVar(&config.GatewayBaseURL, "gateway", envOr("LUCKY_ROOM_DEMO_GATEWAY", "http://127.0.0.1:13000"), "gateway-service base URL")
+	flag.StringVar(&config.AdminBaseURL, "admin", envOr("LUCKY_ROOM_DEMO_ADMIN", "http://127.0.0.1:13100"), "admin base URL")
+	flag.StringVar(&config.AdminUsername, "admin-user", envOr("LUCKY_ROOM_DEMO_ADMIN_USER", "admin"), "local admin username")
+	flag.StringVar(&config.AdminPassword, "admin-password", os.Getenv("LUCKY_ROOM_DEMO_ADMIN_PASSWORD"), "local admin password; prefer the environment variable")
+	flag.StringVar(&config.WalletAddr, "wallet", envOr("LUCKY_ROOM_DEMO_WALLET", "127.0.0.1:13004"), "wallet-service gRPC address")
+	flag.StringVar(&config.LuckyGiftAddr, "lucky", envOr("LUCKY_ROOM_DEMO_LUCKY", "127.0.0.1:13013"), "lucky-gift-service gRPC address")
+	flag.StringVar(&config.AppCode, "app", envOr("LUCKY_ROOM_DEMO_APP", "lalu"), "App scope")
+	flag.Int64Var(&config.InitialCoins, "initial-coins", 1_000_000, "exact sender COIN balance after fixture setup")
+	flag.Parse()
+
+	if config.AdminPassword == "" {
+		log.Fatal("LUCKY_ROOM_DEMO_ADMIN_PASSWORD is required; the local page never stores administrator credentials")
+	}
+
+	ctx, stop := signal.NotifyContext(context.Background(), os.Interrupt, syscall.SIGTERM)
+	defer stop()
+
+	demo, err := newDemoServer(config)
+	if err != nil {
+		log.Fatal(err)
+	}
+	defer demo.Close()
+
+	server := &http.Server{
+		Addr:              config.ListenAddr,
+		Handler:           demo.Routes(),
+		ReadHeaderTimeout: 5 * time.Second,
+		IdleTimeout:       60 * time.Second,
+	}
+	go func() {
+		<-ctx.Done()
+		shutdownCtx, cancel := context.WithTimeout(context.Background(), 5*time.Second)
+		defer cancel()
+		_ = server.Shutdown(shutdownCtx)
+	}()
+
+	log.Printf("lucky gift voice-room demo: http://%s", config.ListenAddr)
+	log.Printf("real API upstream: %s", config.GatewayBaseURL)
+	if err := server.ListenAndServe(); err != nil && !errors.Is(err, http.ErrServerClosed) {
+		log.Fatal(err)
+	}
+}
+
+func envOr(name, fallback string) string {
+	if value := os.Getenv(name); value != "" {
+		return value
+	}
+	return fallback
+}
--- a/tools/lucky-gift-room-demo/server.go
+++ b/tools/lucky-gift-room-demo/server.go
@ -0,0 +1,811 @@
+package main
+
+import (
+	"bytes"
+	"context"
+	"crypto/rand"
+	_ "embed"
+	"encoding/hex"
+	"encoding/json"
+	"errors"
+	"fmt"
+	"io"
+	"net/http"
+	"net/http/httputil"
+	"net/url"
+	"strconv"
+	"strings"
+	"sync"
+	"time"
+
+	"google.golang.org/grpc"
+	"google.golang.org/grpc/credentials/insecure"
+	luckygiftv1 "hyapp.local/api/proto/luckygift/v1"
+	walletv1 "hyapp.local/api/proto/wallet/v1"
+)
+
+const (
+	demoGiftID       = "local_lucky_meteor_100"
+	demoResourceCode = "local_lucky_meteor_resource"
+	demoPoolID       = "local_dynamic_v3"
+	demoGiftPrice    = int64(100)
+)
+
+//go:embed index.html
+var indexHTML []byte
+
+type demoConfig struct {
+	ListenAddr     string
+	GatewayBaseURL string
+	AdminBaseURL   string
+	AdminUsername  string
+	AdminPassword  string
+	WalletAddr     string
+	LuckyGiftAddr  string
+	AppCode        string
+	InitialCoins   int64
+}
+
+type demoServer struct {
+	config demoConfig
+	http   *http.Client
+	proxy  *httputil.ReverseProxy
+
+	walletConn *grpc.ClientConn
+	luckyConn  *grpc.ClientConn
+	wallet     walletv1.WalletServiceClient
+	luckyAdmin luckygiftv1.AdminLuckyGiftServiceClient
+
+	// setupMu serializes fixture creation because quick accounts, an enabled rule and a room are one local-test unit.
+	// A failed setup never publishes a half-filled in-memory fixture to the page.
+	setupMu sync.Mutex
+	fixture *demoFixture
+}
+
+type demoFixture struct {
+	AppCode      string      `json:"app_code"`
+	RoomID       string      `json:"room_id"`
+	RoomName     string      `json:"room_name"`
+	RegionID     int64       `json:"region_id"`
+	GiftID       string      `json:"gift_id"`
+	GiftName     string      `json:"gift_name"`
+	GiftPrice    int64       `json:"gift_price"`
+	PoolID       string      `json:"pool_id"`
+	RuleVersion  int64       `json:"rule_version"`
+	TargetRTPPPM int64       `json:"target_rtp_ppm"`
+	InitialCoins int64       `json:"initial_coins"`
+	SenderToken  string      `json:"sender_token"`
+	Sender       fixtureUser `json:"sender"`
+	Host         fixtureUser `json:"host"`
+	CreatedAtMS  int64       `json:"created_at_ms"`
+	hostToken    string
+}
+
+type fixtureUser struct {
+	UserID        string `json:"user_id"`
+	DisplayUserID string `json:"display_user_id"`
+	Name          string `json:"name"`
+	DeviceID      string `json:"device_id"`
+}
+
+type quickCreateResponse struct {
+	UID         string `json:"uid"`
+	Account     string `json:"account"`
+	AccessToken string `json:"access_token"`
+	Token       struct {
+		UserID        string `json:"user_id"`
+		DisplayUserID string `json:"display_user_id"`
+		AccessToken   string `json:"access_token"`
+	} `json:"token"`
+}
+
+type gatewayEnvelope struct {
+	Code      string          `json:"code"`
+	Message   string          `json:"message"`
+	RequestID string          `json:"request_id"`
+	Data      json.RawMessage `json:"data"`
+}
+
+type adminEnvelope struct {
+	Code    any             `json:"code"`
+	Message string          `json:"message"`
+	Data    json.RawMessage `json:"data"`
+}
+
+type giftRatioItem struct {
+	GiftTypeCode           string `json:"giftTypeCode"`
+	RatioPercent           string `json:"ratioPercent"`
+	ReturnCoinRatioPercent string `json:"returnCoinRatioPercent"`
+}
+
+type giftRatioList struct {
+	RegionID int64           `json:"regionId"`
+	Items    []giftRatioItem `json:"items"`
+}
+
+func newDemoServer(config demoConfig) (*demoServer, error) {
+	if strings.TrimSpace(config.AppCode) == "" || config.InitialCoins <= 0 {
+		return nil, errors.New("app and initial-coins must be configured")
+	}
+	gatewayURL, err := url.Parse(strings.TrimRight(config.GatewayBaseURL, "/"))
+	if err != nil || gatewayURL.Scheme == "" || gatewayURL.Host == "" {
+		return nil, fmt.Errorf("invalid gateway URL %q", config.GatewayBaseURL)
+	}
+
+	walletConn, err := grpc.NewClient(config.WalletAddr, grpc.WithTransportCredentials(insecure.NewCredentials()))
+	if err != nil {
+		return nil, fmt.Errorf("connect wallet-service: %w", err)
+	}
+	luckyConn, err := grpc.NewClient(config.LuckyGiftAddr, grpc.WithTransportCredentials(insecure.NewCredentials()))
+	if err != nil {
+		_ = walletConn.Close()
+		return nil, fmt.Errorf("connect lucky-gift-service: %w", err)
+	}
+
+	proxy := httputil.NewSingleHostReverseProxy(gatewayURL)
+	originalDirector := proxy.Director
+	proxy.Director = func(request *http.Request) {
+		originalDirector(request)
+		request.Host = gatewayURL.Host
+	}
+	proxy.ModifyResponse = func(response *http.Response) error {
+		response.Header.Set("Cache-Control", "no-store")
+		return nil
+	}
+
+	server := &demoServer{
+		config:     config,
+		http:       &http.Client{Timeout: 15 * time.Second},
+		proxy:      proxy,
+		walletConn: walletConn,
+		luckyConn:  luckyConn,
+		wallet:     walletv1.NewWalletServiceClient(walletConn),
+		luckyAdmin: luckygiftv1.NewAdminLuckyGiftServiceClient(luckyConn),
+	}
+	proxy.ErrorHandler = func(writer http.ResponseWriter, request *http.Request, proxyErr error) {
+		server.writeError(writer, http.StatusBadGateway, "gateway unavailable: "+proxyErr.Error())
+	}
+	return server, nil
+}
+
+func (s *demoServer) Close() {
+	_ = s.walletConn.Close()
+	_ = s.luckyConn.Close()
+}
+
+func (s *demoServer) Routes() http.Handler {
+	mux := http.NewServeMux()
+	// 根页面必须使用精确模式；若写成 GET /，Go 1.22+ 会把它视为路径前缀，
+	// 与允许多种 HTTP 方法的 /api/ 反向代理产生歧义并在启动时直接 panic。
+	mux.HandleFunc("GET /{$}", s.handleIndex)
+	mux.HandleFunc("GET /index.html", s.handleIndex)
+	mux.HandleFunc("POST /__local/setup", s.handleSetup)
+	mux.HandleFunc("POST /__local/heartbeat", s.handleHeartbeat)
+	mux.HandleFunc("GET /__local/state", s.handleState)
+	mux.Handle("/api/", s.proxy)
+	return mux
+}
+
+func (s *demoServer) handleIndex(writer http.ResponseWriter, _ *http.Request) {
+	writer.Header().Set("Content-Type", "text/html; charset=utf-8")
+	writer.Header().Set("Cache-Control", "no-store")
+	_, _ = writer.Write(indexHTML)
+}
+
+func (s *demoServer) handleSetup(writer http.ResponseWriter, request *http.Request) {
+	s.setupMu.Lock()
+	defer s.setupMu.Unlock()
+
+	ctx, cancel := context.WithTimeout(request.Context(), 35*time.Second)
+	defer cancel()
+
+	fixture := s.fixture
+	var err error
+	if fixture == nil {
+		fixture, err = s.createFixture(ctx)
+		if err == nil {
+			s.fixture = fixture
+		}
+	} else {
+		// "准备测试数据" is intentionally a reset boundary: the sender starts at exactly one million coins,
+		// while the same authenticated users and room remain real owner-service rows for repeatable UI work.
+		err = s.setSenderBalance(ctx, fixture, s.config.InitialCoins)
+		if err == nil {
+			err = s.heartbeatFixture(ctx, fixture)
+		}
+	}
+	if err != nil {
+		s.writeError(writer, http.StatusBadGateway, err.Error())
+		return
+	}
+	s.writeOK(writer, fixture)
+}
+
+func (s *demoServer) createFixture(ctx context.Context) (*demoFixture, error) {
+	stamp := time.Now().UTC().UnixMilli()
+	host, hostToken, err := s.quickCreate(ctx, "星河主播", fmt.Sprintf("lucky-demo-host-%d", stamp))
+	if err != nil {
+		return nil, fmt.Errorf("create host: %w", err)
+	}
+	sender, senderToken, err := s.quickCreate(ctx, "幸运玩家", fmt.Sprintf("lucky-demo-sender-%d", stamp))
+	if err != nil {
+		return nil, fmt.Errorf("create sender: %w", err)
+	}
+	operatorID, err := parsePositiveInt64(host.UserID, "host user_id")
+	if err != nil {
+		return nil, err
+	}
+
+	if err := s.ensureGiftCatalog(ctx, operatorID); err != nil {
+		return nil, fmt.Errorf("ensure lucky gift: %w", err)
+	}
+
+	roomID, regionID, err := s.createRoom(ctx, hostToken)
+	if err != nil {
+		return nil, fmt.Errorf("create voice room: %w", err)
+	}
+	if err := s.ensureGiftReturnPolicy(ctx, regionID); err != nil {
+		return nil, fmt.Errorf("ensure regional lucky gift return: %w", err)
+	}
+	rule, err := s.ensureDynamicRule(ctx, operatorID)
+	if err != nil {
+		return nil, fmt.Errorf("ensure dynamic_v3 rule: %w", err)
+	}
+	// CreateRoom already establishes owner presence, but an explicit JoinRoom keeps the fixture aligned with the
+	// public client lifecycle and refreshes the same lease before the sender starts interacting with the room.
+	if err := s.joinRoom(ctx, hostToken, roomID, "host"); err != nil {
+		return nil, fmt.Errorf("join host: %w", err)
+	}
+	if err := s.joinRoom(ctx, senderToken, roomID, "sender"); err != nil {
+		return nil, fmt.Errorf("join sender: %w", err)
+	}
+
+	fixture := &demoFixture{
+		AppCode:      s.config.AppCode,
+		RoomID:       roomID,
+		RoomName:     "星河幸运房",
+		RegionID:     regionID,
+		GiftID:       demoGiftID,
+		GiftName:     "幸运流星",
+		GiftPrice:    demoGiftPrice,
+		PoolID:       demoPoolID,
+		RuleVersion:  rule.GetRuleVersion(),
+		TargetRTPPPM: rule.GetTargetRtpPpm(),
+		InitialCoins: s.config.InitialCoins,
+		SenderToken:  senderToken,
+		Sender:       sender,
+		Host:         host,
+		CreatedAtMS:  time.Now().UTC().UnixMilli(),
+		hostToken:    hostToken,
+	}
+	if err := s.setSenderBalance(ctx, fixture, s.config.InitialCoins); err != nil {
+		return nil, err
+	}
+	if err := s.assertGiftPanel(ctx, fixture); err != nil {
+		return nil, err
+	}
+	return fixture, nil
+}
+
+func (s *demoServer) quickCreate(ctx context.Context, name, deviceID string) (fixtureUser, string, error) {
+	body := map[string]any{
+		"password":  "LocalLucky#2026",
+		"username":  name,
+		"country":   "SG",
+		"gender":    "unknown",
+		"device_id": deviceID,
+		// 账号注册协议当前只接受 android/ios；页面仍通过本地 Web 调用 gateway，
+		// 这里的 android 仅是落库的真实测试账号平台快照，不伪造第三方凭证。
+		"platform":        "android",
+		"language":        "zh-CN",
+		"timezone":        "Asia/Shanghai",
+		"source":          "quick_account",
+		"install_channel": "local_lucky_room_demo",
+	}
+	var data quickCreateResponse
+	if err := s.gatewayJSON(ctx, http.MethodPost, "/api/v1/auth/account/quick-create", "", body, &data); err != nil {
+		return fixtureUser{}, "", err
+	}
+	token := data.AccessToken
+	if token == "" {
+		token = data.Token.AccessToken
+	}
+	userID := strings.TrimSpace(data.Token.UserID)
+	displayID := strings.TrimSpace(data.UID)
+	if displayID == "" {
+		displayID = strings.TrimSpace(data.Token.DisplayUserID)
+	}
+	if userID == "" || displayID == "" || token == "" {
+		return fixtureUser{}, "", fmt.Errorf("quick-create response is incomplete")
+	}
+	if _, err := strconv.ParseInt(userID, 10, 64); err != nil {
+		return fixtureUser{}, "", fmt.Errorf("quick-create user_id is invalid: %w", err)
+	}
+	return fixtureUser{UserID: userID, DisplayUserID: displayID, Name: name, DeviceID: deviceID}, token, nil
+}
+
+func (s *demoServer) createRoom(ctx context.Context, token string) (string, int64, error) {
+	body := map[string]any{
+		"command_id":       commandID("room-create"),
+		"seat_count":       10,
+		"mode":             "voice",
+		"room_name":        "星河幸运房",
+		"room_avatar":      "https://cdn.example.com/room/lucky-gift-demo.png",
+		"room_description": "真实用户、真实房间、真实钱包的 dynamic_v3 幸运礼物联调房",
+	}
+	var data struct {
+		Room struct {
+			RoomID          string `json:"room_id"`
+			VisibleRegionID int64  `json:"visible_region_id"`
+		} `json:"room"`
+	}
+	if err := s.gatewayJSON(ctx, http.MethodPost, "/api/v1/rooms/create", token, body, &data); err != nil {
+		return "", 0, err
+	}
+	if strings.TrimSpace(data.Room.RoomID) == "" {
+		return "", 0, errors.New("create room response is missing room_id")
+	}
+	if data.Room.VisibleRegionID <= 0 {
+		return "", 0, errors.New("create room response is missing visible_region_id")
+	}
+	return data.Room.RoomID, data.Room.VisibleRegionID, nil
+}
+
+func (s *demoServer) joinRoom(ctx context.Context, token, roomID, role string) error {
+	return s.gatewayJSON(ctx, http.MethodPost, "/api/v1/rooms/join", token, map[string]any{
+		"room_id":       roomID,
+		"command_id":    commandID("room-join-" + role),
+		"role":          "audience",
+		"response_mode": "lite",
+	}, nil)
+}
+
+func (s *demoServer) heartbeatFixture(ctx context.Context, fixture *demoFixture) error {
+	for role, token := range map[string]string{"host": fixture.hostToken, "sender": fixture.SenderToken} {
+		if err := s.gatewayJSON(ctx, http.MethodPost, "/api/v1/rooms/heartbeat", token, map[string]any{
+			"room_id":    fixture.RoomID,
+			"command_id": commandID("room-heartbeat-" + role),
+		}, nil); err != nil {
+			return fmt.Errorf("heartbeat %s: %w", role, err)
+		}
+	}
+	return nil
+}
+
+func (s *demoServer) handleHeartbeat(writer http.ResponseWriter, request *http.Request) {
+	s.setupMu.Lock()
+	defer s.setupMu.Unlock()
+	if s.fixture == nil {
+		s.writeError(writer, http.StatusConflict, "fixture is not ready")
+		return
+	}
+	ctx, cancel := context.WithTimeout(request.Context(), 10*time.Second)
+	defer cancel()
+	if err := s.heartbeatFixture(ctx, s.fixture); err != nil {
+		s.writeError(writer, http.StatusBadGateway, err.Error())
+		return
+	}
+	s.writeOK(writer, map[string]any{"room_id": s.fixture.RoomID, "heartbeat_at_ms": time.Now().UTC().UnixMilli()})
+}
+
+func (s *demoServer) ensureGiftCatalog(ctx context.Context, operatorID int64) error {
+	resources, err := s.wallet.ListResources(ctx, &walletv1.ListResourcesRequest{
+		RequestId: commandID("resource-list"), AppCode: s.config.AppCode, ResourceType: "gift", Keyword: demoResourceCode, Page: 1, PageSize: 100,
+	})
+	if err != nil {
+		return err
+	}
+	var resourceID int64
+	for _, resource := range resources.GetResources() {
+		if resource.GetResourceCode() == demoResourceCode {
+			resourceID = resource.GetResourceId()
+			break
+		}
+	}
+	if resourceID == 0 {
+		created, createErr := s.wallet.CreateResource(ctx, &walletv1.CreateResourceRequest{
+			RequestId: commandID("resource-create"), AppCode: s.config.AppCode,
+			ResourceCode: demoResourceCode, ResourceType: "gift", Name: "幸运流星", Status: "active",
+			// 礼物资源若被运营发放，会累加背包数量；grant_strategy 使用钱包域的明确枚举，
+			// 不能把展示层的“永久”概念写进资源 owner 的协议。
+			Grantable: true, GrantStrategy: "increase_quantity", UsageScopes: []string{"gift_panel"},
+			MetadataJson: `{"local_demo":true,"visual":"meteor"}`, SortOrder: 10, OperatorUserId: operatorID,
+			PriceType: "coin", CoinPrice: demoGiftPrice,
+		})
+		if createErr != nil {
+			return createErr
+		}
+		resourceID = created.GetResource().GetResourceId()
+	}
+
+	gifts, err := s.wallet.ListGiftConfigs(ctx, &walletv1.ListGiftConfigsRequest{
+		RequestId: commandID("gift-list"), AppCode: s.config.AppCode, Keyword: demoGiftID, Page: 1, PageSize: 100,
+	})
+	if err != nil {
+		return err
+	}
+	for _, gift := range gifts.GetGifts() {
+		if gift.GetGiftId() != demoGiftID {
+			continue
+		}
+		_, err = s.wallet.UpdateGiftConfig(ctx, &walletv1.UpdateGiftConfigRequest{
+			RequestId: commandID("gift-update"), AppCode: s.config.AppCode, GiftId: demoGiftID,
+			ResourceId: resourceID, Status: "active", Name: "幸运流星", SortOrder: 10,
+			PresentationJson: `{"lucky_pool_id":"` + demoPoolID + `","visual":"meteor"}`,
+			PriceVersion:     "local-dynamic-v3", CoinPrice: demoGiftPrice, HeatValue: demoGiftPrice,
+			OperatorUserId: operatorID, RegionIds: []int64{0}, GiftTypeCode: "super_lucky", ChargeAssetType: "COIN",
+		})
+		return err
+	}
+	_, err = s.wallet.CreateGiftConfig(ctx, &walletv1.CreateGiftConfigRequest{
+		RequestId: commandID("gift-create"), AppCode: s.config.AppCode, GiftId: demoGiftID,
+		ResourceId: resourceID, Status: "active", Name: "幸运流星", SortOrder: 10,
+		PresentationJson: `{"lucky_pool_id":"` + demoPoolID + `","visual":"meteor"}`,
+		PriceVersion:     "local-dynamic-v3", CoinPrice: demoGiftPrice, HeatValue: demoGiftPrice,
+		OperatorUserId: operatorID, RegionIds: []int64{0}, GiftTypeCode: "super_lucky", ChargeAssetType: "COIN",
+	})
+	return err
+}
+
+func (s *demoServer) ensureGiftReturnPolicy(ctx context.Context, regionID int64) error {
+	if regionID <= 0 {
+		return errors.New("room region must be positive")
+	}
+	adminToken, err := s.adminLogin(ctx)
+	if err != nil {
+		return err
+	}
+	var current giftRatioList
+	path := "/api/v1/admin/operations/gift-diamond-ratios?region_id=" + strconv.FormatInt(regionID, 10)
+	if err := s.adminJSON(ctx, http.MethodGet, path, adminToken, nil, &current); err != nil {
+		return err
+	}
+	ratios := make(map[string]any, len(current.Items))
+	returns := make(map[string]any, len(current.Items))
+	foundSuperLucky := false
+	needsUpdate := false
+	for _, item := range current.Items {
+		giftType := strings.TrimSpace(item.GiftTypeCode)
+		if giftType == "" || strings.TrimSpace(item.RatioPercent) == "" || strings.TrimSpace(item.ReturnCoinRatioPercent) == "" {
+			return errors.New("gift ratio owner returned an incomplete item")
+		}
+		ratios[giftType] = item.RatioPercent
+		returns[giftType] = item.ReturnCoinRatioPercent
+		if giftType == "super_lucky" {
+			foundSuperLucky = true
+			needsUpdate = item.ReturnCoinRatioPercent != "1.00"
+			returns[giftType] = "1.00"
+		}
+	}
+	if !foundSuperLucky || len(ratios) != 3 {
+		return errors.New("gift ratio owner did not return all three gift types")
+	}
+	if !needsUpdate {
+		return nil
+	}
+	// 98/1/1 的 dynamic_v3 只能消费 wallet 固化的真实 1% 收礼返币。这里通过后台 owner API
+	// 仅修正当前真实房间区域的 super_lucky 返币，并把 GET 到的其他比例原样回写；不能直改钱包表、
+	// 不能篡改已扣费回执，也不能让 lucky service 在金额不一致时继续开奖。
+	var updated giftRatioList
+	if err := s.adminJSON(ctx, http.MethodPut, "/api/v1/admin/operations/gift-diamond-ratios", adminToken, map[string]any{
+		"regionId": regionID, "ratios": ratios, "returnCoinRatios": returns,
+	}, &updated); err != nil {
+		return err
+	}
+	for _, item := range updated.Items {
+		if item.GiftTypeCode == "super_lucky" && item.ReturnCoinRatioPercent == "1.00" {
+			return nil
+		}
+	}
+	return errors.New("super_lucky return ratio was not persisted as 1.00%")
+}
+
+func (s *demoServer) ensureDynamicRule(ctx context.Context, operatorID int64) (*luckygiftv1.LuckyGiftRuleConfig, error) {
+	meta := s.luckyMeta("rule-get")
+	current, err := s.luckyAdmin.GetLuckyGiftConfig(ctx, &luckygiftv1.GetLuckyGiftConfigRequest{Meta: meta, PoolId: demoPoolID})
+	if err == nil {
+		config := current.GetConfig()
+		if config.GetEnabled() && config.GetStrategyVersion() == "dynamic_v3" && config.GetPoolRatePpm() == 980_000 && config.GetProfitRatePpm() == 10_000 && config.GetAnchorRatePpm() == 10_000 {
+			return config, nil
+		}
+	}
+
+	stages := make([]*luckygiftv1.LuckyGiftRuleStage, 0, 3)
+	for index, name := range []string{"novice", "normal", "advanced"} {
+		min7, min30 := int64(0), int64(0)
+		if index == 1 {
+			min30 = 1
+		}
+		if index == 2 {
+			min7, min30 = 1, 1
+		}
+		stages = append(stages, &luckygiftv1.LuckyGiftRuleStage{
+			Stage: name, MinRecharge_7DCoins: min7, MinRecharge_30DCoins: min30,
+			Tiers: []*luckygiftv1.LuckyGiftRuleTier{
+				{Stage: name, TierId: name + "_none", MultiplierPpm: 0, BaseWeightPpm: 50_000, Enabled: true},
+				{Stage: name, TierId: name + "_0_5x", MultiplierPpm: 500_000, BaseWeightPpm: 40_000, Enabled: true},
+				{Stage: name, TierId: name + "_1x", MultiplierPpm: 1_000_000, BaseWeightPpm: 860_000, Enabled: true},
+				{Stage: name, TierId: name + "_2x", MultiplierPpm: 2_000_000, BaseWeightPpm: 50_000, Enabled: true},
+			},
+		})
+	}
+	upserted, err := s.luckyAdmin.UpsertLuckyGiftConfig(ctx, &luckygiftv1.UpsertLuckyGiftConfigRequest{
+		Meta: s.luckyMeta("rule-upsert"), OperatorAdminId: operatorID,
+		Config: &luckygiftv1.LuckyGiftRuleConfig{
+			AppCode: s.config.AppCode, PoolId: demoPoolID, Enabled: true, StrategyVersion: "dynamic_v3",
+			TargetRtpPpm: 980_000, PoolRatePpm: 980_000, ProfitRatePpm: 10_000, AnchorRatePpm: 10_000,
+			SettlementWindowWager: 1_000_000, ControlBandPpm: 30_000, GiftPriceReference: demoGiftPrice,
+			NoviceMaxEquivalentDraws: 2_000, NormalMaxEquivalentDraws: 20_000,
+			EffectiveFromMs: time.Now().UTC().Add(-time.Second).UnixMilli(), CreatedByAdminId: operatorID,
+			InitialPoolCoins: 1_000_000, LossStreakGuarantee: 5,
+			LowWatermarkCoins: 10_000_000, LowWaterNonzeroFactorPpm: 700_000,
+			HighWatermarkCoins: 20_000_000, HighWaterNonzeroFactorPpm: 1_300_000,
+			RechargeBoostWindowMs: 300_000, RechargeBoostFactorPpm: 1_100_000,
+			JackpotMultiplierPpms:  []int64{200_000_000, 500_000_000, 1_000_000_000},
+			JackpotGlobalRtpMaxPpm: 980_000, JackpotUserDayRtpMaxPpm: 960_000, JackpotUser_72HRtpMaxPpm: 960_000,
+			JackpotSpendThresholdCoins: 5_000, MaxJackpotHitsPerUserDay: 5,
+			MaxSinglePayout: 1_000_000, UserHourlyPayoutCap: 2_000_000, UserDailyPayoutCap: 5_000_000,
+			DeviceDailyPayoutCap: 5_000_000, RoomHourlyPayoutCap: 10_000_000, AnchorDailyPayoutCap: 10_000_000,
+			Stages: stages,
+		},
+	})
+	if err != nil {
+		return nil, err
+	}
+	return upserted.GetConfig(), nil
+}
+
+func (s *demoServer) setSenderBalance(ctx context.Context, fixture *demoFixture, wanted int64) error {
+	current, err := s.gatewayCoinBalance(ctx, fixture.SenderToken)
+	if err != nil {
+		return fmt.Errorf("read sender balance: %w", err)
+	}
+	delta := wanted - current
+	if delta == 0 {
+		return nil
+	}
+	adminToken, err := s.adminLogin(ctx)
+	if err != nil {
+		return fmt.Errorf("admin login: %w", err)
+	}
+	body := map[string]any{
+		"commandId":    commandID("coin-adjust"),
+		"targetUserId": fixture.Sender.UserID,
+		"amount":       delta,
+		"reason":       "local_lucky_gift_demo",
+		"remark":       fmt.Sprintf("set sender initial COIN balance to %d", wanted),
+	}
+	if err := s.adminJSON(ctx, http.MethodPost, "/api/v1/admin/operations/coin-adjustments", adminToken, body, nil); err != nil {
+		return fmt.Errorf("adjust sender balance by %d: %w", delta, err)
+	}
+	after, err := s.gatewayCoinBalance(ctx, fixture.SenderToken)
+	if err != nil {
+		return err
+	}
+	if after != wanted {
+		return fmt.Errorf("sender balance mismatch after adjustment: got %d want %d", after, wanted)
+	}
+	return nil
+}
+
+func (s *demoServer) adminLogin(ctx context.Context) (string, error) {
+	var data struct {
+		AccessToken string `json:"accessToken"`
+	}
+	if err := s.adminJSON(ctx, http.MethodPost, "/api/v1/auth/login", "", map[string]any{
+		"username": s.config.AdminUsername,
+		"password": s.config.AdminPassword,
+	}, &data); err != nil {
+		return "", err
+	}
+	if data.AccessToken == "" {
+		return "", errors.New("admin login response is missing accessToken")
+	}
+	return data.AccessToken, nil
+}
+
+func (s *demoServer) gatewayCoinBalance(ctx context.Context, token string) (int64, error) {
+	var data struct {
+		Balances []struct {
+			AssetType       string `json:"asset_type"`
+			AvailableAmount int64  `json:"available_amount"`
+		} `json:"balances"`
+	}
+	if err := s.gatewayJSON(ctx, http.MethodGet, "/api/v1/wallet/me/balances?asset_type=COIN", token, nil, &data); err != nil {
+		return 0, err
+	}
+	for _, balance := range data.Balances {
+		if strings.EqualFold(balance.AssetType, "COIN") {
+			return balance.AvailableAmount, nil
+		}
+	}
+	return 0, nil
+}
+
+func (s *demoServer) assertGiftPanel(ctx context.Context, fixture *demoFixture) error {
+	var data struct {
+		Gifts []struct {
+			GiftID string `json:"gift_id"`
+		} `json:"gifts"`
+	}
+	if err := s.gatewayJSON(ctx, http.MethodGet, "/api/v1/rooms/"+url.PathEscape(fixture.RoomID)+"/gift-panel", fixture.SenderToken, nil, &data); err != nil {
+		return fmt.Errorf("load gift panel: %w", err)
+	}
+	for _, gift := range data.Gifts {
+		if gift.GiftID == fixture.GiftID {
+			return nil
+		}
+	}
+	return fmt.Errorf("real gift panel does not contain %s", fixture.GiftID)
+}
+
+func (s *demoServer) handleState(writer http.ResponseWriter, request *http.Request) {
+	s.setupMu.Lock()
+	fixture := s.fixture
+	s.setupMu.Unlock()
+	if fixture == nil {
+		s.writeError(writer, http.StatusConflict, "fixture is not ready")
+		return
+	}
+	ctx, cancel := context.WithTimeout(request.Context(), 10*time.Second)
+	defer cancel()
+
+	senderBalance, err := s.gatewayCoinBalance(ctx, fixture.SenderToken)
+	if err != nil {
+		s.writeError(writer, http.StatusBadGateway, err.Error())
+		return
+	}
+	userID, err := parsePositiveInt64(fixture.Sender.UserID, "sender user_id")
+	if err != nil {
+		s.writeError(writer, http.StatusInternalServerError, err.Error())
+		return
+	}
+	draws, err := s.luckyAdmin.ListLuckyGiftDraws(ctx, &luckygiftv1.ListLuckyGiftDrawsRequest{
+		Meta: s.luckyMeta("draw-list"), UserId: userID, RoomId: fixture.RoomID, PoolId: fixture.PoolID, Page: 1, PageSize: 20,
+	})
+	if err != nil {
+		s.writeError(writer, http.StatusBadGateway, "list lucky draws: "+err.Error())
+		return
+	}
+	recent := make([]map[string]any, 0, len(draws.GetDraws()))
+	for _, draw := range draws.GetDraws() {
+		recent = append(recent, map[string]any{
+			"draw_id": draw.GetDrawId(), "command_id": draw.GetCommandId(), "tier_id": draw.GetSelectedTierId(),
+			"multiplier_ppm": draw.GetMultiplierPpm(), "reward_coins": draw.GetEffectiveRewardCoins(),
+			"reward_status": draw.GetRewardStatus(), "created_at_ms": draw.GetCreatedAtMs(),
+		})
+	}
+	s.writeOK(writer, map[string]any{
+		"sender_balance": senderBalance,
+		"draw_total":     draws.GetTotal(),
+		"recent_draws":   recent,
+		"server_time_ms": time.Now().UTC().UnixMilli(),
+	})
+}
+
+func (s *demoServer) gatewayJSON(ctx context.Context, method, path, token string, body any, out any) error {
+	headers := map[string]string{"X-App-Code": s.config.AppCode, "X-App-Platform": "web", "X-App-Language": "zh-CN"}
+	if token != "" {
+		headers["Authorization"] = "Bearer " + token
+	}
+	raw, status, err := s.doJSON(ctx, strings.TrimRight(s.config.GatewayBaseURL, "/")+path, method, headers, body)
+	if err != nil {
+		return err
+	}
+	var envelope gatewayEnvelope
+	if decodeErr := json.Unmarshal(raw, &envelope); decodeErr != nil {
+		return fmt.Errorf("gateway returned invalid JSON (status %d): %w", status, decodeErr)
+	}
+	if status < 200 || status >= 300 || envelope.Code != "OK" {
+		return fmt.Errorf("gateway request failed status=%d code=%s message=%s request_id=%s", status, envelope.Code, envelope.Message, envelope.RequestID)
+	}
+	if out != nil && len(envelope.Data) > 0 && string(envelope.Data) != "null" {
+		if err := json.Unmarshal(envelope.Data, out); err != nil {
+			return fmt.Errorf("decode gateway data: %w", err)
+		}
+	}
+	return nil
+}
+
+func (s *demoServer) adminJSON(ctx context.Context, method, path, token string, body any, out any) error {
+	headers := map[string]string{"X-App-Code": s.config.AppCode}
+	if token != "" {
+		headers["Authorization"] = "Bearer " + token
+	}
+	raw, status, err := s.doJSON(ctx, strings.TrimRight(s.config.AdminBaseURL, "/")+path, method, headers, body)
+	if err != nil {
+		return err
+	}
+	var envelope adminEnvelope
+	if decodeErr := json.Unmarshal(raw, &envelope); decodeErr != nil {
+		return fmt.Errorf("admin returned invalid JSON (status %d): %w", status, decodeErr)
+	}
+	if status < 200 || status >= 300 || !adminCodeOK(envelope.Code) {
+		return fmt.Errorf("admin request failed status=%d code=%v message=%s", status, envelope.Code, envelope.Message)
+	}
+	if out != nil && len(envelope.Data) > 0 && string(envelope.Data) != "null" {
+		if err := json.Unmarshal(envelope.Data, out); err != nil {
+			return fmt.Errorf("decode admin data: %w", err)
+		}
+	}
+	return nil
+}
+
+func (s *demoServer) doJSON(ctx context.Context, endpoint, method string, headers map[string]string, body any) ([]byte, int, error) {
+	var reader io.Reader
+	if body != nil {
+		raw, err := json.Marshal(body)
+		if err != nil {
+			return nil, 0, err
+		}
+		reader = bytes.NewReader(raw)
+	}
+	request, err := http.NewRequestWithContext(ctx, method, endpoint, reader)
+	if err != nil {
+		return nil, 0, err
+	}
+	request.Header.Set("Accept", "application/json")
+	if body != nil {
+		request.Header.Set("Content-Type", "application/json")
+	}
+	for key, value := range headers {
+		request.Header.Set(key, value)
+	}
+	response, err := s.http.Do(request)
+	if err != nil {
+		return nil, 0, err
+	}
+	defer response.Body.Close()
+	raw, err := io.ReadAll(io.LimitReader(response.Body, 4<<20))
+	return raw, response.StatusCode, err
+}
+
+func (s *demoServer) luckyMeta(prefix string) *luckygiftv1.RequestMeta {
+	return &luckygiftv1.RequestMeta{
+		RequestId: commandID(prefix), Caller: "lucky-gift-room-demo", SentAtMs: time.Now().UTC().UnixMilli(), AppCode: s.config.AppCode,
+	}
+}
+
+func (s *demoServer) writeOK(writer http.ResponseWriter, data any) {
+	writeJSON(writer, http.StatusOK, map[string]any{"code": "OK", "message": "ok", "data": data})
+}
+
+func (s *demoServer) writeError(writer http.ResponseWriter, status int, message string) {
+	writeJSON(writer, status, map[string]any{"code": "LOCAL_DEMO_ERROR", "message": message, "data": nil})
+}
+
+func writeJSON(writer http.ResponseWriter, status int, value any) {
+	writer.Header().Set("Content-Type", "application/json; charset=utf-8")
+	writer.Header().Set("Cache-Control", "no-store")
+	writer.WriteHeader(status)
+	_ = json.NewEncoder(writer).Encode(value)
+}
+
+func adminCodeOK(code any) bool {
+	switch value := code.(type) {
+	case float64:
+		return value == 0 || value == 200
+	case string:
+		return value == "0" || value == "200" || strings.EqualFold(value, "OK")
+	case nil:
+		return true
+	default:
+		return false
+	}
+}
+
+func parsePositiveInt64(value, label string) (int64, error) {
+	parsed, err := strconv.ParseInt(strings.TrimSpace(value), 10, 64)
+	if err != nil || parsed <= 0 {
+		return 0, fmt.Errorf("%s must be a positive int64", label)
+	}
+	return parsed, nil
+}
+
+func commandID(prefix string) string {
+	randomBytes := make([]byte, 6)
+	if _, err := rand.Read(randomBytes); err != nil {
+		return fmt.Sprintf("demo-%s-%d", prefix, time.Now().UTC().UnixNano())
+	}
+	return fmt.Sprintf("demo-%s-%d-%s", prefix, time.Now().UTC().UnixMilli(), hex.EncodeToString(randomBytes))
+}
--- a/tools/lucky-gift-room-demo/server_test.go
+++ b/tools/lucky-gift-room-demo/server_test.go
@ -0,0 +1,113 @@
+package main
+
+import (
+	"io"
+	"net/http"
+	"net/http/httptest"
+	"regexp"
+	"strings"
+	"testing"
+)
+
+func TestRoutesServeSelfContainedV2Page(t *testing.T) {
+	server, err := newDemoServer(demoConfig{
+		GatewayBaseURL: "http://127.0.0.1:13000",
+		AdminBaseURL:   "http://127.0.0.1:13100",
+		WalletAddr:     "127.0.0.1:13004",
+		LuckyGiftAddr:  "127.0.0.1:13013",
+		AppCode:        "lalu",
+		InitialCoins:   1_000_000,
+	})
+	if err != nil {
+		t.Fatal(err)
+	}
+	defer server.Close()
+
+	request := httptest.NewRequest(http.MethodGet, "/", nil)
+	response := httptest.NewRecorder()
+	server.Routes().ServeHTTP(response, request)
+	if response.Code != http.StatusOK {
+		t.Fatalf("status = %d, want %d", response.Code, http.StatusOK)
+	}
+	body, err := io.ReadAll(response.Result().Body)
+	if err != nil {
+		t.Fatal(err)
+	}
+	page := string(body)
+	for _, required := range []string{
+		`/api/v2/rooms/gift/send`,
+		`/api/v1/activities/lucky-gifts/check`,
+		`/__local/heartbeat`,
+		`target_user_id`,
+		`idempotent_replay`,
+	} {
+		if !strings.Contains(page, required) {
+			t.Errorf("page does not contain %q", required)
+		}
+	}
+	if strings.Contains(page, "admin123") {
+		t.Fatal("page must never embed local administrator credentials")
+	}
+}
+
+func TestFixtureEndpointsFailClosedBeforeSetup(t *testing.T) {
+	server, err := newDemoServer(demoConfig{
+		GatewayBaseURL: "http://127.0.0.1:13000",
+		AdminBaseURL:   "http://127.0.0.1:13100",
+		WalletAddr:     "127.0.0.1:13004",
+		LuckyGiftAddr:  "127.0.0.1:13013",
+		AppCode:        "lalu",
+		InitialCoins:   1_000_000,
+	})
+	if err != nil {
+		t.Fatal(err)
+	}
+	defer server.Close()
+
+	for _, testCase := range []struct {
+		method string
+		path   string
+	}{
+		{method: http.MethodGet, path: "/__local/state"},
+		{method: http.MethodPost, path: "/__local/heartbeat"},
+	} {
+		request := httptest.NewRequest(testCase.method, testCase.path, nil)
+		response := httptest.NewRecorder()
+		server.Routes().ServeHTTP(response, request)
+		if response.Code != http.StatusConflict {
+			t.Errorf("%s %s status = %d, want %d", testCase.method, testCase.path, response.Code, http.StatusConflict)
+		}
+	}
+}
+
+func TestCommandIDAndIntegerParsing(t *testing.T) {
+	first := commandID("gift")
+	second := commandID("gift")
+	if first == second {
+		t.Fatalf("command IDs must be unique: %q", first)
+	}
+	if !regexp.MustCompile(`^demo-gift-\d+-[0-9a-f]{12}$`).MatchString(first) {
+		t.Fatalf("unexpected command ID: %q", first)
+	}
+	if value, err := parsePositiveInt64("9223372036854775807", "user_id"); err != nil || value <= 0 {
+		t.Fatalf("parse max int64: value=%d err=%v", value, err)
+	}
+	for _, invalid := range []string{"", "0", "-1", "9007199254740992.0", "abc"} {
+		if _, err := parsePositiveInt64(invalid, "user_id"); err == nil {
+			t.Errorf("parsePositiveInt64(%q) unexpectedly succeeded", invalid)
+		}
+	}
+}
+
+func TestAdminCodeOK(t *testing.T) {
+	for _, value := range []any{nil, float64(0), float64(200), "0", "200", "OK", "ok"} {
+		if !adminCodeOK(value) {
+			t.Errorf("adminCodeOK(%v) = false", value)
+		}
+	}
+	for _, value := range []any{float64(500), "ERROR", true} {
+		if adminCodeOK(value) {
+			t.Errorf("adminCodeOK(%v) = true", value)
+		}
+	}
+}