2026-05-18-19-31-18 增加原始视频查看入口

frontend/index.html

@@ -85,7 +85,10 @@
               <p class="eyebrow">Live Workspace</p>
               <h2>预览与结果</h2>
             </div>
-            <div class="job-meta" id="jobMeta">等待输入</div>
+            <div class="viewer-actions">
+              <button class="ghost media-button" id="openSourceButton" type="button" hidden>查看原始视频</button>
+              <div class="job-meta" id="jobMeta">等待输入</div>
+            </div>
           </div>
 
           <div class="preview-stage" id="previewStage">
@@ -144,6 +147,20 @@
       <dl class="detail-metrics" id="detailMetrics"></dl>
     </dialog>
 
+    <dialog class="detail-dialog source-dialog" id="sourceDialog">
+      <div class="dialog-head">
+        <div>
+          <p class="eyebrow">Source Media</p>
+          <h2 id="sourceTitle">原始视频</h2>
+        </div>
+        <button class="icon-button" id="closeSourceDialog" type="button" aria-label="关闭原始媒体">×</button>
+      </div>
+      <div class="source-stage">
+        <video id="sourceVideo" controls hidden></video>
+        <img id="sourceImage" alt="原始输入图像" hidden />
+      </div>
+    </dialog>
+
     <template id="resultCardTemplate">
       <article class="result-card" tabindex="0">
         <div class="card-top">