diff --git a/apps/web/public/sandbox-demo/activity-view.html b/apps/web/public/sandbox-demo/activity-view.html
index 41a036d..6644b17 100644
--- a/apps/web/public/sandbox-demo/activity-view.html
+++ b/apps/web/public/sandbox-demo/activity-view.html
@@ -3,96 +3,17 @@
 <head>
 <meta charset="UTF-8" />
 <meta name="viewport" content="width=device-width, initial-scale=1" />
-<title>活动视图 · 询价接收与结构化</title>
+<title>活动视图</title>
 <!--
-  活动视图占位页(2026-08-25,L2 沙箱 v1):
+  活动视图占位页(L2 沙箱):
   模拟「服务器返回的 HTML」—— 由 iframe + sandbox="allow-scripts" 隔离渲染,
   与宿主页面零样式/脚本互通;正式版由接口按活动定义返回。
-  2026-08-26 用户定:演示数据全部清空,只留骨架当结构占位(空值口径:无数据显 `-` / 暂无数据)。
+  2026-08-26 用户定:内容全部清空(数据与骨架都不留),只留可加载的空白页等接口的 HTML。
 -->
 <style>
-  * { margin: 0; padding: 0; box-sizing: border-box; }
-  body {
-    font: 14px/1.7 -apple-system, "PingFang SC", "Microsoft YaHei", system-ui, sans-serif;
-    color: #161a22; background: #f6f7f9; padding: 24px;
-  }
-  .wrap { max-width: 880px; margin: 0 auto; display: flex; flex-direction: column; gap: 16px; }
-  .head { display: flex; align-items: center; gap: 12px; }
-  .head .logo { width: 40px; height: 40px; border-radius: 10px; display: grid; place-items: center;
-    background: linear-gradient(150deg, #eaf1ff, #fff); color: #3370ff; box-shadow: inset 0 0 0 1px rgba(51,112,255,.18); }
-  .head h1 { font-size: 18px; font-weight: 700; letter-spacing: .01em; }
-  .head p { font-size: 12px; color: #8b93a3; font-family: ui-monospace, monospace; }
-  .stats { display: grid; grid-template-columns: repeat(4, 1fr); gap: 12px; }
-  .stat { background: #fff; border: 1px solid #dfe3ea; border-radius: 8px; padding: 12px 14px; }
-  .stat em { display: block; font-style: normal; font-size: 11px; color: #8b93a3; }
-  .stat b { display: block; margin-top: 2px; font: 600 20px/1.2 ui-monospace, monospace; color: #161a22; }
-  .stat.hot b { color: #3370ff; }
-  .card { background: #fff; border: 1px solid #dfe3ea; border-radius: 8px; overflow: hidden; }
-  .card h2 { padding: 12px 16px; font-size: 13px; font-weight: 700; color: #4a5160;
-    border-bottom: 1px solid #eef1f5; letter-spacing: .03em; }
-  table { width: 100%; border-collapse: collapse; font-size: 13px; }
-  thead th { text-align: left; padding: 8px 16px; background: #f5f7fa; color: #4a5160;
-    font-size: 11px; font-weight: 700; border-bottom: 1px solid #e2e7ee; }
-  tbody td { padding: 10px 16px; border-bottom: 1px solid #eef1f5; }
-  tbody tr:nth-child(even) { background: #f8fafc; }
-  tbody tr:last-child td { border-bottom: 0; }
-  .mono { font-family: ui-monospace, monospace; font-size: 12px; }
-  .ok { display: inline-block; padding: 1px 8px; border-radius: 999px; background: #e6f6ee; color: #0c8154; font-size: 11px; font-weight: 600; }
-  .wait { display: inline-block; padding: 1px 8px; border-radius: 999px; background: #fdf3e3; color: #b0822d; font-size: 11px; font-weight: 600; }
-  .form { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; padding: 16px; }
-  .field em { display: block; font-style: normal; font-size: 11px; color: #8b93a3; margin-bottom: 4px; }
-  .field .box { height: 34px; border: 1px solid #dfe3ea; border-radius: 6px; background: #fbfcfd;
-    display: flex; align-items: center; padding: 0 10px; font-size: 12.5px; color: #4a5160; }
-  .field.wide { grid-column: 1 / -1; }
-  .cta { grid-column: 1 / -1; display: flex; justify-content: flex-end; gap: 8px; }
-  .btn { height: 34px; padding: 0 16px; border: 1px solid #dfe3ea; border-radius: 6px; background: #fff;
-    font-size: 13px; color: #4a5160; }
-  .btn.primary { background: #3370ff; border-color: #3370ff; color: #fff; font-weight: 600; }
+  body { margin: 0; background: #fff; }
 </style>
 </head>
 <body>
-  <div class="wrap">
-    <div class="head">
-      <span class="logo">
-        <svg width="20" height="20" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round"><polyline points="22 12 16 12 14 15 10 15 8 12 2 12"></polyline><path d="M5.45 5.11 2 12v6a2 2 0 0 0 2 2h16a2 2 0 0 0 2-2v-6l-3.45-6.89A2 2 0 0 0 16.76 4H7.24a2 2 0 0 0-1.79 1.11z"></path></svg>
-      </span>
-      <div>
-        <h1>询价接收与结构化</h1>
-        <p>quote-intake · 活动视图(服务器返回 HTML · 沙箱隔离渲染)</p>
-      </div>
-    </div>
-
-    <div class="stats">
-      <div class="stat"><em>今日接收</em><b>-</b></div>
-      <div class="stat hot"><em>待人工补全</em><b>-</b></div>
-      <div class="stat"><em>结构化成功</em><b>-</b></div>
-      <div class="stat"><em>平均耗时</em><b>-</b></div>
-    </div>
-
-    <div class="card">
-      <h2>最近的询价原文</h2>
-      <table>
-        <thead>
-          <tr><th>来源</th><th>物料数</th><th>接收时间</th><th>结构化结果</th></tr>
-        </thead>
-        <tbody>
-          <tr><td colspan="4" style="text-align:center;color:#8b93a3;">暂无数据</td></tr>
-        </tbody>
-      </table>
-    </div>
-
-    <div class="card">
-      <h2>人工补全</h2>
-      <div class="form">
-        <div class="field"><em>物料编码</em><div class="box">-</div></div>
-        <div class="field"><em>数量</em><div class="box mono">-</div></div>
-        <div class="field wide"><em>交期要求</em><div class="box">-</div></div>
-        <div class="cta">
-          <button class="btn">暂存</button>
-          <button class="btn primary">确认提交</button>
-        </div>
-      </div>
-    </div>
-  </div>
 </body>
 </html>