v26110903 补：12 个独立专题页、测一测页接 host-nav（容器页返回走 navigateBack），广场打开测试开容器页

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

guangchang/ceshi/index.html

@@ -235,6 +235,7 @@ mark{background:linear-gradient(transparent 62%,var(--c20) 0);color:inherit;padd
 @media (prefers-reduced-motion:reduce){.fade,.stage,.view.on,.mask.on{opacity:1;transform:none;transition:none;animation:none}}
 </style>
 <link rel="stylesheet" href="../../topic/_shared/quiz-skin.css?v=26110643"><!-- 11-07 答题页底色 / 卡片 -->
+<script src="../../js/host-nav.js?v=26110903"></script>
 </head>
 <body>
 <svg class="hide" aria-hidden="true" xmlns="http://www.w3.org/2000/svg">
@@ -397,6 +398,7 @@ mark{background:linear-gradient(transparent 62%,var(--c20) 0);color:inherit;padd
   $('#back').addEventListener('click', function () {
     if (views.quiz.classList.contains('on') && cur > 0) { goPrev(); return; }
     if (!views.start.classList.contains('on')) { renderStart(); show('start'); return; }
+    if (window.MBHost && MBHost.back(function () { location.href = plazaURL(); })) return;   /* 11-09 容器页：回小程序上一页 */
     location.href = plazaURL();
   });
   sc.addEventListener('scroll', function () { $('#bar').classList.toggle('sh', sc.scrollTop > 4); }, { passive: true });