diff --git a/tests/e2e.mjs b/tests/e2e.mjs
index cd68e18..1da05d9 100644
--- a/tests/e2e.mjs
+++ b/tests/e2e.mjs
@@ -89,16 +89,17 @@ await page.goto(BASE + '/opensource/', { waitUntil: 'networkidle' });
 const osState = await page.evaluate(() => {
   const html = document.documentElement.outerHTML;
   return {
-    thirdParty: ['img.shields.io', 'readme-typing-svg', 'github-readme-stats', 'streak-stats', 'komarev']
+    // 5j T2：streak/贡献蛇退役（信息并入热力图区），第三方图仍必须为零
+    thirdParty: ['img.shields.io', 'readme-typing-svg', 'github-readme-stats', 'streak-stats', 'komarev', '/github-assets/']
       .some((u) => html.includes(u)),
     typing: !!document.querySelector('[class*=typing]'),
-    board: document.querySelectorAll('.pf-card').length,
-    localAssets: [...document.querySelectorAll('img')].filter((i) => i.src.includes('/github-assets/')).length,
+    streakLine: /天连续|day streak/.test(html),
+    updated: html.includes('数据更新于'),
   };
 });
-ok('5i·开源页零第三方外链图', !osState.thirdParty);
+ok('5i·开源页零第三方外链图（含退役资产）', !osState.thirdParty);
 ok('5i·打字机动效存在', osState.typing);
-ok('5i·数据板渲染', osState.board > 0 && osState.localAssets > 0, `cards=${osState.board} assets=${osState.localAssets}`);
+ok('5j·连续贡献同源计算 + 更新时间标注', osState.streakLine && osState.updated);
 
 // 1) 明暗切换：按钮 + 状态持久 + t 键
 const before = await page.getAttribute('html', 'data-theme');
@@ -193,11 +194,13 @@ const books = await page.evaluate(() => {
   return { total: all.length, open: all.filter((d) => d.hasAttribute('open')).length };
 });
 ok('书架 抽书行渲染', books.total >= 1, JSON.stringify(books));
+// 置顶书默认展开（C 设计）：点击已展开的行是"收起"，未展开的行是"抽开"——
+// 断言口径 = 行数不变、开合状态恰好翻转一次（2026-11-04 修：曾误点已展开的置顶行）
+const openBefore = await page.evaluate(() => document.querySelectorAll('.book[open]').length);
 await page.locator('.book').first().locator('summary').click();
 await page.waitForTimeout(250);
-ok('书架 点击可抽开', (await page.locator('.book[open] .body').count()) === 1);
-await page.locator('.book').first().locator('summary').click();
-await page.waitForTimeout(200);
+const openAfter = await page.evaluate(() => document.querySelectorAll('.book[open]').length);
+ok('书架 抽书开合翻转', Math.abs(openAfter - openBefore) === 1, `${openBefore}→${openAfter}`);
 
 // 4) 命令面板 + 搜索
 await page.keyboard.press('Control+k');