host-nav：跳转标记只用真实 localStorage（maternal-bridge 镜像层会换掉 window.localStorage）+ cookie 兜底

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

guangchang/ceshi/index.html

@@ -235,7 +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=26110907"></script>
+<script src="../../js/host-nav.js?v=26110908"></script>
 </head>
 <body>
 <svg class="hide" aria-hidden="true" xmlns="http://www.w3.org/2000/svg">

guangchang/index.html

@@ -3,7 +3,7 @@
 <head>
 <meta charset="utf-8">
 <!-- 11-04 UGC 总开关关着时本页不展示，直接回首页（js/ugc.js） -->
-<script src="../js/host-nav.js?v=26110907"></script>
+<script src="../js/host-nav.js?v=26110908"></script>
 <script src="../js/login-gate.js?v=26110610"></script>
 <script src="../js/ugc.js?v=26110702" data-guard></script>
 <meta name="viewport" content="width=device-width,initial-scale=1,maximum-scale=1,user-scalable=no,viewport-fit=cover">