diff --git a/databi/src/social/views/OverviewView.jsx b/databi/src/social/views/OverviewView.jsx
index 7909faa..8a1f644 100644
--- a/databi/src/social/views/OverviewView.jsx
+++ b/databi/src/social/views/OverviewView.jsx
@@ -2,6 +2,7 @@
 // 数据契约见 SocialBiApp.jsx 的 useSocialBi()；本视图只做展示与聚合，不直接调 API。
 
 import { useMemo, useState } from "react";
+import Button from "@mui/material/Button";
 import { EChart } from "../../charts/EChart.jsx";
 import { deltaDirection, formatCount, formatDeltaRate, formatMoney, isBlank } from "../format.js";
 import { aggregateMetricMaps, appColor, formatMetric, metricChartValue, metricLabel, metricTooltip } from "../metrics.js";
@@ -22,7 +23,8 @@ const TREND_METRICS = [
   { key: "recharge_usd_minor", label: "充值" },
   { key: "new_users", label: "新增" },
   { key: "active_users", label: "日活" },
-  { key: "gift_coin_spent", label: "礼物流水" }
+  { key: "gift_coin_spent", label: "礼物流水" },
+  { key: "game_turnover", label: "游戏流水" }
 ];
 
 const COMPARE_METRICS = [
@@ -332,26 +334,31 @@ export function OverviewView() {
           <strong>{trendLabel}趋势</strong>
           <small>按 App 堆叠</small>
           <div className="sbi-card-toolbar">
-            <div className="sbi-seg" role="group" aria-label="趋势指标与明细入口">
+            {trendMetric === "game_turnover" ? (
+              // 游戏流水先留在概览中展示趋势，只有用户明确点击明细入口时才切换到数据需求视图。
+              <Button
+                onClick={() => openRequirementSection("game")}
+                size="small"
+                title="进入数据需求中的游戏数据明细"
+                variant="outlined"
+              >
+                查看明细
+              </Button>
+            ) : null}
+            <div className="sbi-seg" role="radiogroup" aria-label="趋势指标">
               {TREND_METRICS.map((item) => (
                 <button
-                  aria-pressed={trendMetric === item.key}
+                  aria-checked={trendMetric === item.key}
                   className={trendMetric === item.key ? "is-active" : ""}
                   key={item.key}
                   onClick={() => setTrendMetric(item.key)}
+                  role="radio"
                   title={metricTooltip(item.key)}
                   type="button"
                 >
                   {item.label}
                 </button>
               ))}
-              <button
-                onClick={() => openRequirementSection("game")}
-                title="查看数据需求中的游戏数据"
-                type="button"
-              >
-                游戏流水
-              </button>
             </div>
           </div>
         </header>