diff --git 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
index c53ab2ad..04f3534b 100644
--- 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
@@ -106,7 +106,9 @@ CREATE TABLE IF NOT EXISTS lucky_gift_rule_versions (
   user_24h_ordinary_win_factor_ppm BIGINT NOT NULL DEFAULT 1000000 COMMENT '触发后普通非零奖档保留权重，ppm；1000000表示不降权',
   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 '兼容旧实例的用户日 RTP 上限影子列；新代码与轮次列双写',
   jackpot_user_round_rtp_max_ppm BIGINT NOT NULL DEFAULT 0 COMMENT '动态大奖用户已结算轮次 RTP 严格上限，ppm',
+  jackpot_user_72h_rtp_max_ppm BIGINT NOT NULL DEFAULT 0 COMMENT '兼容旧实例的用户 72 小时 RTP 上限影子列；新代码与 48 小时列双写',
   jackpot_user_48h_rtp_max_ppm BIGINT NOT NULL DEFAULT 0 COMMENT '动态大奖用户滚动 48 小时 RTP 严格上限，ppm',
   jackpot_spend_threshold_coins BIGINT NOT NULL DEFAULT 0 COMMENT '规则版本动态配置的用户 UTC 日累计消费大奖门槛金币',
   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',
diff --git a/services/lucky-gift-service/deploy/mysql/migrations/006_settled_round_rtp_48h.sql b/services/lucky-gift-service/deploy/mysql/migrations/010_settled_round_rtp_48h.sql
similarity index 77%
rename from services/lucky-gift-service/deploy/mysql/migrations/006_settled_round_rtp_48h.sql
rename to services/lucky-gift-service/deploy/mysql/migrations/010_settled_round_rtp_48h.sql
index 04ae2f59..57187f07 100644
--- a/services/lucky-gift-service/deploy/mysql/migrations/006_settled_round_rtp_48h.sql
+++ b/services/lucky-gift-service/deploy/mysql/migrations/010_settled_round_rtp_48h.sql
@@ -2,43 +2,48 @@ SET NAMES utf8mb4 COLLATE utf8mb4_unicode_ci;
 
 USE hyapp_lucky_gift;
 
+-- 生产 main 的 006 已用于 AB 实验；本迁移编号调整为 010 以保证发布目录内版本唯一。
 -- 性能边界：
--- 1. 规则版本表只保存低频发布的不可变配置，两个 CHANGE 仅改列名/注释且保持 BIGINT/NOT NULL/DEFAULT 不变；
---    显式要求 ALGORITHM=INSTANT，若目标 MySQL 不支持即时 DDL 就直接失败，禁止静默退化为整表 COPY。
---    只有旧、新列异常并存时才扫描这张小配置表把旧非零值补到新列，再即时删除旧列；不会扫描任何抽奖事实。
+-- 1. 规则版本表只保存低频发布的不可变配置。生产使用双实例滚动，旧实例仍硬编码 day/72h 列，
+--    因此本次只能执行 expand：补齐 old/new 四列并双向回填，绝不 CHANGE/DROP 旧列。
+--    新版本仓储会双写两套列；确认所有旧实例与回滚窗口都结束后，才能用独立 contract migration 删除影子列。
+--    所有加列显式要求 ALGORITHM=INSTANT，若目标 MySQL 不支持则直接失败，禁止退化为整表 COPY。
 -- 2. lucky_rtp_windows 是热状态表。三个常量默认列分别使用即时 DDL，不回写历史行；每条 ALTER 仍需短暂 MDL，
 --    上线前应确认没有长事务占用该表，否则迁移会等待元数据锁，但不会扫描 lucky_draw_records 等明细大表。
 -- 3. lucky_user_rtp_windows 是全新空表，主键与待资格索引随建表一次完成；迁移不做历史资格回填，避免全表聚合。
 
--- 旧库保留 day/72h 列，新库可能已由 initdb 创建 round/48h 列；逐列探测保证两种环境和重复执行都安全。
--- CHANGE 保持列类型、空值属性与默认值完全不变，只把唯一业务口径改成“已结算轮次”和“滚动 48 小时”。
+-- 旧库只有 day/72h，新测试库可能只有 round/48h；逐列补齐四列，让新旧二进制在发布和回滚窗口内都能工作。
 SET @has_old_column := (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');
-SET @has_new_column := (SELECT COUNT(*) FROM information_schema.COLUMNS WHERE TABLE_SCHEMA = DATABASE() AND TABLE_NAME = 'lucky_gift_rule_versions' AND COLUMN_NAME = 'jackpot_user_round_rtp_max_ppm');
-SET @ddl := CASE
-  WHEN @has_old_column > 0 AND @has_new_column = 0 THEN 'ALTER TABLE lucky_gift_rule_versions CHANGE COLUMN jackpot_user_day_rtp_max_ppm jackpot_user_round_rtp_max_ppm BIGINT NOT NULL DEFAULT 0 COMMENT ''动态大奖用户已结算轮次 RTP 严格上限，ppm'', ALGORITHM=INSTANT'
-  WHEN @has_old_column = 0 AND @has_new_column = 0 THEN 'ALTER TABLE lucky_gift_rule_versions ADD COLUMN jackpot_user_round_rtp_max_ppm BIGINT NOT NULL DEFAULT 0 COMMENT ''动态大奖用户已结算轮次 RTP 严格上限，ppm'', ALGORITHM=INSTANT'
-  ELSE 'SELECT 1'
-END;
+SET @ddl := IF(@has_old_column = 0,
+  'ALTER TABLE lucky_gift_rule_versions ADD COLUMN jackpot_user_day_rtp_max_ppm BIGINT NOT NULL DEFAULT 0 COMMENT ''兼容旧实例的用户日 RTP 上限影子列；新代码与轮次列双写'' AFTER jackpot_global_rtp_max_ppm, ALGORITHM=INSTANT',
+  'SELECT 1');
+PREPARE stmt FROM @ddl; EXECUTE stmt; DEALLOCATE PREPARE stmt;
+
+SET @has_new_column := (SELECT COUNT(*) FROM information_schema.COLUMNS WHERE TABLE_SCHEMA = DATABASE() AND TABLE_NAME = 'lucky_gift_rule_versions' AND COLUMN_NAME = 'jackpot_user_round_rtp_max_ppm');
+SET @ddl := IF(@has_new_column = 0,
+  'ALTER TABLE lucky_gift_rule_versions ADD COLUMN jackpot_user_round_rtp_max_ppm BIGINT NOT NULL DEFAULT 0 COMMENT ''动态大奖用户已结算轮次 RTP 严格上限，ppm'' AFTER jackpot_user_day_rtp_max_ppm, ALGORITHM=INSTANT',
+  'SELECT 1');
 PREPARE stmt FROM @ddl; EXECUTE stmt; DEALLOCATE PREPARE stmt;
 
--- 历史 004 可能在全量重放时再次补出旧列。若旧、新列同时存在，以已发布的新列为准，仅在新值为 0 时承接旧非零值，
--- 随后删除旧列，保证仓储永远只面对一个口径；规则版本表数据量是发布次数级，不是送礼流水级。
 SET @has_old_column := (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');
 SET @has_new_column := (SELECT COUNT(*) FROM information_schema.COLUMNS WHERE TABLE_SCHEMA = DATABASE() AND TABLE_NAME = 'lucky_gift_rule_versions' AND COLUMN_NAME = 'jackpot_user_round_rtp_max_ppm');
 SET @ddl := IF(@has_old_column > 0 AND @has_new_column > 0,
   'UPDATE lucky_gift_rule_versions SET jackpot_user_round_rtp_max_ppm = jackpot_user_day_rtp_max_ppm WHERE jackpot_user_round_rtp_max_ppm = 0 AND jackpot_user_day_rtp_max_ppm <> 0', 'SELECT 1');
 PREPARE stmt FROM @ddl; EXECUTE stmt; DEALLOCATE PREPARE stmt;
 SET @ddl := IF(@has_old_column > 0 AND @has_new_column > 0,
-  'ALTER TABLE lucky_gift_rule_versions DROP COLUMN jackpot_user_day_rtp_max_ppm, ALGORITHM=INSTANT', 'SELECT 1');
+  'UPDATE lucky_gift_rule_versions SET jackpot_user_day_rtp_max_ppm = jackpot_user_round_rtp_max_ppm WHERE jackpot_user_day_rtp_max_ppm = 0 AND jackpot_user_round_rtp_max_ppm <> 0', 'SELECT 1');
 PREPARE stmt FROM @ddl; EXECUTE stmt; DEALLOCATE PREPARE stmt;
 
 SET @has_old_column := (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');
+SET @ddl := IF(@has_old_column = 0,
+  'ALTER TABLE lucky_gift_rule_versions ADD COLUMN jackpot_user_72h_rtp_max_ppm BIGINT NOT NULL DEFAULT 0 COMMENT ''兼容旧实例的用户 72 小时 RTP 上限影子列；新代码与 48 小时列双写'' AFTER jackpot_user_round_rtp_max_ppm, ALGORITHM=INSTANT',
+  'SELECT 1');
+PREPARE stmt FROM @ddl; EXECUTE stmt; DEALLOCATE PREPARE stmt;
+
 SET @has_new_column := (SELECT COUNT(*) FROM information_schema.COLUMNS WHERE TABLE_SCHEMA = DATABASE() AND TABLE_NAME = 'lucky_gift_rule_versions' AND COLUMN_NAME = 'jackpot_user_48h_rtp_max_ppm');
-SET @ddl := CASE
-  WHEN @has_old_column > 0 AND @has_new_column = 0 THEN 'ALTER TABLE lucky_gift_rule_versions CHANGE COLUMN jackpot_user_72h_rtp_max_ppm jackpot_user_48h_rtp_max_ppm BIGINT NOT NULL DEFAULT 0 COMMENT ''动态大奖用户滚动 48 小时 RTP 严格上限，ppm'', ALGORITHM=INSTANT'
-  WHEN @has_old_column = 0 AND @has_new_column = 0 THEN 'ALTER TABLE lucky_gift_rule_versions ADD COLUMN jackpot_user_48h_rtp_max_ppm BIGINT NOT NULL DEFAULT 0 COMMENT ''动态大奖用户滚动 48 小时 RTP 严格上限，ppm'', ALGORITHM=INSTANT'
-  ELSE 'SELECT 1'
-END;
+SET @ddl := IF(@has_new_column = 0,
+  'ALTER TABLE lucky_gift_rule_versions ADD COLUMN jackpot_user_48h_rtp_max_ppm BIGINT NOT NULL DEFAULT 0 COMMENT ''动态大奖用户滚动 48 小时 RTP 严格上限，ppm'' AFTER jackpot_user_72h_rtp_max_ppm, ALGORITHM=INSTANT',
+  'SELECT 1');
 PREPARE stmt FROM @ddl; EXECUTE stmt; DEALLOCATE PREPARE stmt;
 
 SET @has_old_column := (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');
@@ -47,7 +52,7 @@ SET @ddl := IF(@has_old_column > 0 AND @has_new_column > 0,
   'UPDATE lucky_gift_rule_versions SET jackpot_user_48h_rtp_max_ppm = jackpot_user_72h_rtp_max_ppm WHERE jackpot_user_48h_rtp_max_ppm = 0 AND jackpot_user_72h_rtp_max_ppm <> 0', 'SELECT 1');
 PREPARE stmt FROM @ddl; EXECUTE stmt; DEALLOCATE PREPARE stmt;
 SET @ddl := IF(@has_old_column > 0 AND @has_new_column > 0,
-  'ALTER TABLE lucky_gift_rule_versions DROP COLUMN jackpot_user_72h_rtp_max_ppm, ALGORITHM=INSTANT', 'SELECT 1');
+  'UPDATE lucky_gift_rule_versions SET jackpot_user_72h_rtp_max_ppm = jackpot_user_48h_rtp_max_ppm WHERE jackpot_user_72h_rtp_max_ppm = 0 AND jackpot_user_48h_rtp_max_ppm <> 0', 'SELECT 1');
 PREPARE stmt FROM @ddl; EXECUTE stmt; DEALLOCATE PREPARE stmt;
 
 -- 历史窗口无法可靠推导首笔、末笔和闭窗业务时间，因此默认 0 明确表示 unknown；新运行逻辑只对新窗口写真实 paid_at。
diff --git a/services/lucky-gift-service/deploy/mysql/migrations/010_v2_high_water_boost.sql b/services/lucky-gift-service/deploy/mysql/migrations/011_v2_high_water_boost.sql
similarity index 100%
rename from services/lucky-gift-service/deploy/mysql/migrations/010_v2_high_water_boost.sql
rename to services/lucky-gift-service/deploy/mysql/migrations/011_v2_high_water_boost.sql
diff --git a/services/lucky-gift-service/internal/storage/mysql/lucky_gift_experiment_repository.go b/services/lucky-gift-service/internal/storage/mysql/lucky_gift_experiment_repository.go
index 2ba5ed42..75fb7ec4 100644
--- a/services/lucky-gift-service/internal/storage/mysql/lucky_gift_experiment_repository.go
+++ b/services/lucky-gift-service/internal/storage/mysql/lucky_gift_experiment_repository.go
@@ -19,17 +19,31 @@ const luckyExperimentSelectColumns = `app_code, experiment_id, pool_id, name,
 
 // resolveLuckyGiftRuleConfigForUser 是实验期的配置选择入口：
 // 无未完成实验时保持"最新版本生效"的原始语义；有实验时按白名单和哈希分桶钉住组内版本。
-// 实验行使用一致性快照读（不加锁）：给它加锁会与创建/结束实验的"规则行→实验行"锁序构成 AB-BA。
-// 已知取舍：创建实验提交瞬间，快照早于提交而规则行锁读晚于提交的在途抽奖，会按"最新版本=treatment"
-// 开奖一次——毫秒级窗口，两组配置都是已校验可运行的版本，无资金风险，仅统计上可忽略的归组误差。
+// 事务开奖先锁最新规则行，再一致性读取实验：这与创建/结束实验保持"规则行→实验行"顺序，
+// 同时确保 REPEATABLE READ 快照建立在前一笔同奖池结算提交之后，滚动 RTP 不会漏掉刚完成的抽奖。
+// Check 等只读入口不加锁，仍使用普通一致性快照，避免把低频配置检查串行化。
 // 实验状态（放量/白名单/暂停）变更会让分组在 Check 与 Draw 之间漂移；创建入口强制两组同策略，漂移无害。
 // 钉住的版本行缺失表示不可变事实被外部破坏，必须 fail-close，不能静默回落最新版本改变实验语义。
 func (r *Repository) resolveLuckyGiftRuleConfigForUser(ctx context.Context, q luckyRuleQueryer, appCode string, poolID string, userKey string, forUpdate bool) (domain.RuleConfig, bool, error) {
+	var lockedLatest domain.RuleConfig
+	var lockedLatestExists bool
+	var err error
+	if forUpdate {
+		// 最新规则行是同奖池开奖和实验管理共享的串行化入口。先锁它再读取实验，
+		// 既固定事务快照边界，也避免 control/treatment 两个版本按用户分组产生反向锁序。
+		lockedLatest, lockedLatestExists, err = r.getLuckyGiftRuleConfig(ctx, q, appCode, poolID, true)
+		if err != nil {
+			return domain.RuleConfig{}, false, err
+		}
+	}
 	experiment, exists, err := r.getActiveLuckyGiftExperiment(ctx, q, appCode, poolID, false)
 	if err != nil {
 		return domain.RuleConfig{}, false, err
 	}
 	if !exists {
+		if forUpdate {
+			return lockedLatest, lockedLatestExists, nil
+		}
 		return r.getLuckyGiftRuleConfig(ctx, q, appCode, poolID, forUpdate)
 	}
 	override := ""
diff --git 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
index eb6e58da..2b9e77c4 100644
--- 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
@@ -79,14 +79,18 @@ func (r *Repository) publishLuckyGiftRuleConfigTx(ctx context.Context, tx *sql.T
 	if config.JackpotMultiplierPPMs == nil {
 		config.JackpotMultiplierPPMs = []int64{}
 	}
-	// 旧的进程内调用方可能仍填写 day/72h 别名；仓储只持久化轮次/48h 两个唯一口径，
-	// 兼容赋值必须在生成不可变版本前完成，避免同一规则出现两套可漂移的数据库字段。
+	// 旧的进程内调用方可能仍填写 day/72h 别名；业务口径只认轮次/48h，
+	// 兼容赋值必须在生成不可变版本前完成，随后再把同一值双写到旧影子列供滚动升级和回滚读取。
 	if config.JackpotUserRoundRTPMaxPPM == 0 {
 		config.JackpotUserRoundRTPMaxPPM = config.JackpotUserDayRTPMaxPPM
 	}
 	if config.JackpotUser48hRTPMaxPPM == 0 {
 		config.JackpotUser48hRTPMaxPPM = config.JackpotUser72hRTPMaxPPM
 	}
+	// 生产双实例需要允许新旧二进制短时共存和安全回滚。兼容窗口内新代码同时写入
+	// day/round 与 72h/48h 两组列；旧代码只读取影子列，新代码只把新语义暴露到领域层。
+	config.JackpotUserDayRTPMaxPPM = config.JackpotUserRoundRTPMaxPPM
+	config.JackpotUser72hRTPMaxPPM = config.JackpotUser48hRTPMaxPPM
 	jackpotMultiplierPPMsJSON, err := json.Marshal(config.JackpotMultiplierPPMs)
 	if err != nil {
 		return domain.RuleConfig{}, fmt.Errorf("marshal lucky gift jackpot multipliers: %w", err)
@@ -125,11 +129,13 @@ func (r *Repository) publishLuckyGiftRuleConfigTx(ctx context.Context, tx *sql.T
 			v2_high_water_boost_threshold_coins, v2_high_water_boost_factor_ppm, v2_high_water_boost_recover_coins,
 			recharge_boost_window_ms, recharge_boost_factor_ppm,
 			user_24h_rtp_threshold_ppm, user_24h_ordinary_win_factor_ppm, jackpot_multiplier_ppms,
-			jackpot_global_rtp_max_ppm, jackpot_user_round_rtp_max_ppm, jackpot_user_48h_rtp_max_ppm,
+			jackpot_global_rtp_max_ppm,
+			jackpot_user_day_rtp_max_ppm, jackpot_user_round_rtp_max_ppm,
+			jackpot_user_72h_rtp_max_ppm, jackpot_user_48h_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 (?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?)`,
+		) 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,
@@ -141,7 +147,9 @@ func (r *Repository) publishLuckyGiftRuleConfigTx(ctx context.Context, tx *sql.T
 		config.V2HighWaterBoostThresholdCoins, config.V2HighWaterBoostFactorPPM, config.V2HighWaterBoostRecoverCoins,
 		config.RechargeBoostWindowMS, config.RechargeBoostFactorPPM,
 		config.User24HourRTPThresholdPPM, config.User24HourOrdinaryWinFactorPPM, jackpotMultiplierPPMsJSON,
-		config.JackpotGlobalRTPMaxPPM, config.JackpotUserRoundRTPMaxPPM, config.JackpotUser48hRTPMaxPPM,
+		config.JackpotGlobalRTPMaxPPM,
+		config.JackpotUserDayRTPMaxPPM, config.JackpotUserRoundRTPMaxPPM,
+		config.JackpotUser72hRTPMaxPPM, config.JackpotUser48hRTPMaxPPM,
 		config.JackpotSpendThresholdCoins, config.MaxJackpotHitsPerUserDay,
 		config.MaxSinglePayout, config.UserHourlyPayoutCap, config.UserDailyPayoutCap,
 		config.DeviceDailyPayoutCap, config.RoomHourlyPayoutCap, config.AnchorDailyPayoutCap,
@@ -205,7 +213,11 @@ func (r *Repository) ListLuckyGiftRuleConfigs(ctx context.Context, appCode strin
 		       v.v2_high_water_boost_threshold_coins, v.v2_high_water_boost_factor_ppm, v.v2_high_water_boost_recover_coins,
 		       v.recharge_boost_window_ms, v.recharge_boost_factor_ppm,
 		       v.user_24h_rtp_threshold_ppm, v.user_24h_ordinary_win_factor_ppm, v.jackpot_multiplier_ppms,
-		       v.jackpot_global_rtp_max_ppm, v.jackpot_user_round_rtp_max_ppm, v.jackpot_user_48h_rtp_max_ppm,
+		       v.jackpot_global_rtp_max_ppm,
+		       CASE WHEN v.jackpot_user_round_rtp_max_ppm = 0 AND v.jackpot_user_day_rtp_max_ppm <> 0
+		            THEN v.jackpot_user_day_rtp_max_ppm ELSE v.jackpot_user_round_rtp_max_ppm END,
+		       CASE WHEN v.jackpot_user_48h_rtp_max_ppm = 0 AND v.jackpot_user_72h_rtp_max_ppm <> 0
+		            THEN v.jackpot_user_72h_rtp_max_ppm ELSE v.jackpot_user_48h_rtp_max_ppm END,
 		       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
@@ -251,7 +263,11 @@ const luckyRuleConfigSelectSQL = `
 	       v2_high_water_boost_threshold_coins, v2_high_water_boost_factor_ppm, v2_high_water_boost_recover_coins,
 	       recharge_boost_window_ms, recharge_boost_factor_ppm,
 	       user_24h_rtp_threshold_ppm, user_24h_ordinary_win_factor_ppm, jackpot_multiplier_ppms,
-	       jackpot_global_rtp_max_ppm, jackpot_user_round_rtp_max_ppm, jackpot_user_48h_rtp_max_ppm,
+	       jackpot_global_rtp_max_ppm,
+	       CASE WHEN jackpot_user_round_rtp_max_ppm = 0 AND jackpot_user_day_rtp_max_ppm <> 0
+	            THEN jackpot_user_day_rtp_max_ppm ELSE jackpot_user_round_rtp_max_ppm END,
+	       CASE WHEN jackpot_user_48h_rtp_max_ppm = 0 AND jackpot_user_72h_rtp_max_ppm <> 0
+	            THEN jackpot_user_72h_rtp_max_ppm ELSE jackpot_user_48h_rtp_max_ppm END,
 	       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
@@ -415,7 +431,7 @@ func scanLuckyGiftRuleConfig(scanner luckyScanner) (domain.RuleConfig, error) {
 	if config.JackpotMultiplierPPMs == nil {
 		config.JackpotMultiplierPPMs = []int64{}
 	}
-	// 数据库只有轮次/48h 两个真实字段；回填旧别名仅用于同进程源码兼容，运行策略仍由 marker 选择新语义。
+	// 数据库兼容期保留旧影子列，但查询已收敛到轮次/48h 两个业务口径；旧别名仅供同进程源码兼容。
 	config.JackpotUserDayRTPMaxPPM = config.JackpotUserRoundRTPMaxPPM
 	config.JackpotUser72hRTPMaxPPM = config.JackpotUser48hRTPMaxPPM
 	config.SettledRoundRTPEligibility = true