diff --git a/docs/project-memory/plans/【里程碑】游戏分发目录详情与在线游玩-2026-09-18.md b/docs/project-memory/plans/【里程碑】游戏分发目录详情与在线游玩-2026-09-18.md
index d9b9fa6a4..ca79346e7 100644
--- a/docs/project-memory/plans/【里程碑】游戏分发目录详情与在线游玩-2026-09-18.md
+++ b/docs/project-memory/plans/【里程碑】游戏分发目录详情与在线游玩-2026-09-18.md
@@ -320,3 +320,8 @@
 | 同上路径但带 `Cookie` | **403 Forbidden** + `application/json`（`x-api-version: 2026-06-16`、`x-response-time-ms`）——发行读取**拒绝携带账号凭证**的请求，与本地用例断言一致 |
 
 **生产环境**（`genarrative.world`）同一时刻 `/api/game-distribution/games` 返回 **0 条**：说明当前生产还没有任何已发布的游戏，条目 ④「真实环境整链路」需要在生产发布一个作品后再跑。也就是说此刻能拿到的真实环境证据是「dev 部署的公开读路径 + 发行隔离」，写路径与审核链路的真实环境验收仍需生产账号。
+
+## 网页侧交互修正（2026-09-30）
+
+- **广场首屏「立即试玩」不再替用户选中作品**：`src/components/game-distribution/GameGalleryPage.tsx` 原来是 `onClick={() => featuredGame && openDetail(featuredGame.id)}`，点一下等于直接打开第一款游戏的详情。现在按钮只把列表滚进视野（按平台页签面板计算相对偏移，`scrollTo({ behavior: 'smooth' })`，无 `scrollTo` 时退化成直接赋值），不再触发 `onOpenDetail`；`featuredGame` 派生随之退役。回归用例 `GameDistributionPages.test.tsx`「首屏「立即试玩」滚动到列表，而不是打开第一款游戏详情」断言 `onOpenDetail` 未被调用且滚动落在页签面板上。
+- 验证：`npx vitest run src/components/game-distribution/GameDistributionPages.test.tsx`（21 passed）、`npm run typecheck`、`npx eslint`、`npm run check:encoding`、`git diff --check` 通过。视觉与真机走查仍需人工/截图评审（沿用阶段 C 第 8 条未取证口径）。
diff --git a/src/components/game-distribution/GameDistributionPages.test.tsx b/src/components/game-distribution/GameDistributionPages.test.tsx
index 15b3b8720..f550408c7 100644
--- a/src/components/game-distribution/GameDistributionPages.test.tsx
+++ b/src/components/game-distribution/GameDistributionPages.test.tsx
@@ -375,6 +375,50 @@ describe('GameGalleryPage 筛选与返回上下文', () => {
       ).toBe('180'),
     );
   });
+
+  it('首屏「立即试玩」滚动到列表，而不是打开第一款游戏详情', async () => {
+    resetGalleryContext();
+    const onOpenDetail = vi.fn();
+    listGamesMock.mockResolvedValue([
+      createGame({ id: 'game-1', title: '星轨防线' }),
+      createGame({ id: 'game-2', title: '第二款' }),
+    ]);
+    const scrollTo = vi.fn();
+    const originalScrollTo = Object.getOwnPropertyDescriptor(
+      Element.prototype,
+      'scrollTo',
+    );
+    Object.defineProperty(Element.prototype, 'scrollTo', {
+      configurable: true,
+      writable: true,
+      value: scrollTo,
+    });
+    try {
+      const { container } = render(
+        <div className="platform-tab-panel">
+          <GameGalleryPage onOpenDetail={onOpenDetail} />
+        </div>,
+      );
+      expect(await screen.findByText('星轨防线')).toBeTruthy();
+
+      fireEvent.click(screen.getByRole('button', { name: /立即试玩/u }));
+
+      expect(onOpenDetail).not.toHaveBeenCalled();
+      expect(scrollTo).toHaveBeenCalledTimes(1);
+      expect(scrollTo.mock.instances[0]).toBe(
+        container.querySelector('.platform-tab-panel'),
+      );
+      expect(scrollTo.mock.calls[0]?.[0]).toMatchObject({
+        behavior: 'smooth',
+      });
+    } finally {
+      if (originalScrollTo) {
+        Object.defineProperty(Element.prototype, 'scrollTo', originalScrollTo);
+      } else {
+        delete (Element.prototype as { scrollTo?: unknown }).scrollTo;
+      }
+    }
+  });
 });
 
 describe('GamePlayPage 启动超时与旋转提示', () => {
diff --git a/src/components/game-distribution/GameGalleryPage.tsx b/src/components/game-distribution/GameGalleryPage.tsx
index 11636ccfc..36d888e05 100644
--- a/src/components/game-distribution/GameGalleryPage.tsx
+++ b/src/components/game-distribution/GameGalleryPage.tsx
@@ -145,6 +145,7 @@ export function GameGalleryPage({
   const [error, setError] = useState('');
   const requestSerialRef = useRef(0);
   const scrollContainerRef = useRef<HTMLElement | null>(null);
+  const gameListRef = useRef<HTMLDivElement | null>(null);
   const hasRestoredScrollRef = useRef(false);
   /**
    * 顶栏搜索词只在「真的变了」时覆盖目录筛选。
@@ -167,6 +168,31 @@ export function GameGalleryPage({
       container instanceof HTMLElement ? container : null;
   }, []);
 
+  /**
+   * 首屏「立即试玩」只把列表滚进视野，不替用户选定某一款游戏。
+   *
+   * 滚动容器是平台页签面板而不是窗口，所以按容器相对位置计算，缺少
+   * `scrollTo` 时退化成直接赋值，保证无动画环境也能生效。
+   */
+  const scrollToGameList = useCallback(() => {
+    const anchor = gameListRef.current;
+    if (!anchor) return;
+    const container = scrollContainerRef.current;
+    if (!container) {
+      anchor.scrollIntoView?.({ behavior: 'smooth', block: 'start' });
+      return;
+    }
+    const nextScrollTop =
+      container.scrollTop +
+      anchor.getBoundingClientRect().top -
+      container.getBoundingClientRect().top;
+    if (typeof container.scrollTo === 'function') {
+      container.scrollTo({ top: nextScrollTop, behavior: 'smooth' });
+      return;
+    }
+    container.scrollTop = nextScrollTop;
+  }, []);
+
   const loadGames = useCallback(() => {
     const requestSerial = ++requestSerialRef.current;
     setIsLoading(true);
@@ -231,7 +257,6 @@ export function GameGalleryPage({
     () => games.filter((game) => matchesGameDeviceFilter(game, device)),
     [device, games],
   );
-  const featuredGame = useMemo(() => visibleGames[0] ?? null, [visibleGames]);
   const hasActiveFilters =
     activeKeyword.trim().length > 0 || category !== '全部' || device !== '全部';
   const resetFilters = () => {
@@ -270,7 +295,7 @@ export function GameGalleryPage({
             <PlatformActionButton
               size="md"
               shape="pill"
-              onClick={() => featuredGame && openDetail(featuredGame.id)}
+              onClick={scrollToGameList}
             >
               <Gamepad2 aria-hidden="true" /> 立即试玩
             </PlatformActionButton>
@@ -282,7 +307,7 @@ export function GameGalleryPage({
         </div>
       </section>
 
-      <div className="game-toolbar">
+      <div className="game-toolbar" ref={gameListRef}>
         <div className="game-toolbar__title">
           <span className="game-eyebrow">发现好玩的</span>
           <h2>游戏广场</h2>