diff --git a/app/static/public/css/video.css b/app/static/public/css/video.css
index d9d90c0..a0127fd 100644
--- a/app/static/public/css/video.css
+++ b/app/static/public/css/video.css
@@ -99,7 +99,7 @@ body {
 }
 
 .history-panel .video-stage {
-  min-height: 260px;
+  min-height: 220px;
   max-height: 980px;
   overflow: auto;
   background: #fafafa;
@@ -109,6 +109,9 @@ body {
 .history-panel .video-item {
   background: #fff;
   border: 1px solid var(--video-outline);
+  padding: 8px;
+  gap: 6px;
+  border-radius: 9px;
 }
 
 .history-panel .video-item-title,
@@ -118,6 +121,7 @@ body {
 
 .history-panel .video-item-bar {
   display: block;
+  margin-bottom: 2px;
 }
 
 .history-panel .video-item-title {
@@ -135,10 +139,14 @@ body {
 }
 
 .history-panel .video-item-actions {
-  margin-top: 10px;
+  margin-top: 0;
   display: flex;
   justify-content: flex-end;
-  gap: 6px;
+  gap: 5px;
+}
+
+.history-panel .video-item-body {
+  min-height: 96px;
 }
 
 .history-panel .video-item-link {
@@ -557,6 +565,23 @@ body {
   color: #e2e8f0;
 }
 
+.video-item-actions-overlay {
+  position: absolute;
+  top: 8px;
+  right: 8px;
+  z-index: 3;
+  padding: 4px;
+  border-radius: 8px;
+  background: rgba(15, 23, 42, 0.42);
+  backdrop-filter: blur(2px);
+}
+
+.video-item-actions-overlay .geist-button-outline {
+  height: 22px;
+  padding: 0 7px;
+  font-size: 10px;
+}
+
 .video-item-body {
   border-radius: 8px;
   background: #000;
@@ -565,6 +590,7 @@ body {
   display: flex;
   align-items: center;
   justify-content: center;
+  position: relative;
 }
 
 .video-item video {
diff --git a/app/static/public/js/video.js b/app/static/public/js/video.js
index 3ab2edb..ef195df 100644
--- a/app/static/public/js/video.js
+++ b/app/static/public/js/video.js
@@ -89,6 +89,22 @@
   let mergeTargetVideoName = '';
   let mergeCutMsA = 0;
   let mergeCutMsB = 0;
+
+  function compactTitleToken(value) {
+    const raw = String(value || '').trim();
+    const cleaned = raw.replace(/[^a-zA-Z0-9]/g, '');
+    if (cleaned) return cleaned.slice(0, 8);
+    const ts = String(Date.now());
+    return ts.slice(Math.max(0, ts.length - 8));
+  }
+
+  function buildHistoryTitle(type, value) {
+    const token = compactTitleToken(value);
+    if (type === 'splice') {
+      return `拼接视频第${token}轮`;
+    }
+    return `生成视频${token}`;
+  }
   let cacheModalPickMode = 'edit';
   let cacheModalAnchorEl = null;
 
@@ -434,7 +450,7 @@
     title.textContent = `视频 ${previewCount}`;
 
     const actions = document.createElement('div');
-    actions.className = 'video-item-actions';
+    actions.className = 'video-item-actions video-item-actions-overlay';
 
     const openBtn = document.createElement('a');
     openBtn.className = 'geist-button-outline text-xs px-3 video-open hidden';
@@ -452,11 +468,13 @@
     editBtn.className = 'geist-button-outline text-xs px-3 video-edit';
     editBtn.type = 'button';
     editBtn.textContent = '编辑';
+    editBtn.disabled = true;
 
     const setBBtn = document.createElement('button');
     setBBtn.className = 'geist-button-outline text-xs px-3 video-set-b';
     setBBtn.type = 'button';
     setBBtn.textContent = '设为视频2';
+    setBBtn.disabled = true;
 
     actions.appendChild(openBtn);
     actions.appendChild(downloadBtn);
@@ -467,13 +485,13 @@
     const body = document.createElement('div');
     body.className = 'video-item-body';
     body.innerHTML = '<div class="video-item-placeholder">生成中…</div>';
+    body.appendChild(actions);
 
     const link = document.createElement('div');
     link.className = 'video-item-link';
 
     item.appendChild(header);
     item.appendChild(body);
-    item.appendChild(actions);
     item.appendChild(link);
     videoStage.appendChild(item);
     videoStage.classList.remove('hidden');
@@ -488,6 +506,8 @@
     if (!item) return;
     const openBtn = item.querySelector('.video-open');
     const downloadBtn = item.querySelector('.video-download');
+    const editBtn = item.querySelector('.video-edit');
+    const setBBtn = item.querySelector('.video-set-b');
     const link = item.querySelector('.video-item-link');
     const safeUrl = url || '';
     item.dataset.url = safeUrl;
@@ -508,6 +528,12 @@
       downloadBtn.dataset.url = safeUrl;
       downloadBtn.disabled = !safeUrl;
     }
+    if (editBtn) {
+      editBtn.disabled = !safeUrl;
+    }
+    if (setBBtn) {
+      setBBtn.disabled = !safeUrl;
+    }
     if (safeUrl) {
       item.classList.remove('is-pending');
     }
@@ -1398,6 +1424,7 @@
     previewCount = 0;
     for (const taskId of taskIds) {
       const previewItem = initPreviewSlot();
+      setPreviewTitle(previewItem, buildHistoryTitle('generated', taskId));
       taskStates.set(taskId, {
         taskId,
         source: null,
@@ -1828,7 +1855,7 @@
       if (item) {
         selectedVideoItemId = String(item.dataset.index || '');
         item.dataset.url = mergedUrl;
-        setPreviewTitle(item, `视频 ${selectedVideoItemId} · 手动拼接`);
+        setPreviewTitle(item, buildHistoryTitle('splice', `manual-${Date.now()}`));
         renderVideoFromUrl({ previewItem: item }, mergedUrl);
         refreshVideoSelectionUi();
       }
@@ -1894,7 +1921,7 @@
         selectedVideoItemId = String(item.dataset.index || '');
         item.dataset.url = mergedUrl;
         item.dataset.round = String(nextRound);
-        setPreviewTitle(item, `视频 ${selectedVideoItemId} · 第${nextRound}轮`);
+        setPreviewTitle(item, buildHistoryTitle('splice', taskId || String(nextRound)));
         const state = { previewItem: item };
         renderVideoFromUrl(state, mergedUrl);
         refreshVideoSelectionUi();
diff --git a/app/static/public/pages/video.html b/app/static/public/pages/video.html
index 3ace0ec..b7c554b 100644
--- a/app/static/public/pages/video.html
+++ b/app/static/public/pages/video.html
@@ -18,7 +18,7 @@
   <link href="https://cdn.jsdelivr.net/npm/geist@1.0.0/dist/fonts/geist-mono/style.css" rel="stylesheet">
   <script src="/static/common/js/theme.js?v=0.1.0"></script>
   <link href="/static/common/css/common.css?v=0.3.7" rel="stylesheet">
-  <link href="/static/public/css/video.css?v=0.4.6" rel="stylesheet">
+  <link href="/static/public/css/video.css?v=0.4.7" rel="stylesheet">
   <link href="/static/common/css/toast.css" rel="stylesheet">
 </head>
 
@@ -307,7 +307,7 @@
   <script src="/static/common/js/pwa.js?v=0.1.1"></script>
   <script src="/static/vendor/ffmpeg/ffmpeg.js?v=0.1.0"></script>
   <script src="/static/vendor/ffmpeg/ffmpeg-util.js?v=0.1.0"></script>
-  <script src="/static/public/js/video.js?v=0.5.9"></script>
+  <script src="/static/public/js/video.js?v=0.5.10"></script>
 </body>
 
 </html>