diff --git a/.memory/worklog.json b/.memory/worklog.json
index 0fef4c2..844d322 100644
--- a/.memory/worklog.json
+++ b/.memory/worklog.json
@@ -1,26 +1,5 @@
 {
   "entries": [
-    {
-      "files_changed": 3,
-      "hash": "ca0d6f1",
-      "message": "auto-save 2026-05-12 20:04 (~3)",
-      "ts": "2026-05-12T20:04:48+08:00",
-      "type": "commit"
-    },
-    {
-      "files_changed": 3,
-      "hash": "138d68d",
-      "message": "auto-save 2026-05-12 20:10 (~3)",
-      "ts": "2026-05-12T20:10:22+08:00",
-      "type": "commit"
-    },
-    {
-      "files_changed": 1,
-      "hash": "ae2b4bc",
-      "message": "auto-save 2026-05-12 21:21 (~1)",
-      "ts": "2026-05-12T21:21:43+08:00",
-      "type": "commit"
-    },
     {
       "files_changed": 1,
       "hash": "d2d232a",
@@ -3339,6 +3318,25 @@
       "type": "session-heartbeat",
       "message": "Codex 会话活跃 · 最近命令：codex · 1 项未提交变更 · 最近提交：auto-save 2026-05-14 07:17 (~1)",
       "files_changed": 1
+    },
+    {
+      "ts": "2026-05-14T07:23:13+08:00",
+      "type": "commit",
+      "message": "auto-save 2026-05-14 07:23 (~4)",
+      "hash": "a6773a8",
+      "files_changed": 4
+    },
+    {
+      "ts": "2026-05-13T23:23:14Z",
+      "type": "session-heartbeat",
+      "message": "Claude 会话活跃 · 最近命令：claude · 1 项未提交变更 · 最近提交：auto-save 2026-05-14 07:23 (~4)",
+      "files_changed": 1
+    },
+    {
+      "ts": "2026-05-13T23:28:52Z",
+      "type": "session-heartbeat",
+      "message": "Codex 会话活跃 · 最近命令：codex · 6 项未提交变更 · 最近提交：auto-save 2026-05-14 07:23 (~4)",
+      "files_changed": 6
     }
   ]
 }
diff --git a/docs/source-analysis.html b/docs/source-analysis.html
index 3052190..f7d3d27 100644
--- a/docs/source-analysis.html
+++ b/docs/source-analysis.html
@@ -556,8 +556,8 @@
           <div class="step"><div class="num">3</div><h3>清洗水印</h3><p>对关键帧做全图或区域清洗，必要时应用为当前参考图。</p></div>
           <div class="step"><div class="num">4</div><h3>主体识别</h3><p>识别场景和主体候选，只是候选，不应锁死。</p></div>
           <div class="step"><div class="num">5</div><h3>素材准备</h3><p>清洗关键帧，把多张关键帧作为同一主体的参考，先重绘六张标准站立主体资产图，再按关键帧生成多个去主体、相似或换风格场景图。</p></div>
-          <div class="step"><div class="num">6</div><h3>分镜改造</h3><p>把参考主体、场景、动作和 SKG 产品放入分镜结构；SKG 产品可从内置白底图库直接加入产品参考组。</p></div>
-          <div class="step"><div class="num">7</div><h3>生成视频</h3><p>用分镜 4 图槽、改造目标和时长调用 Seedance / Kling / Veo 3 生视频 API，结果回写到画面工作台节点。</p></div>
+          <div class="step"><div class="num">6</div><h3>分镜改造</h3><p>把参考主体、场景、动作和 SKG 产品放入分镜结构；产品融合使用 6 行镜头组，每行绑定产品图、白底人物图、产品区域、场景图、描述词和秒数。</p></div>
+          <div class="step"><div class="num">7</div><h3>生成视频</h3><p>普通分镜可调用 Seedance / Kling / Veo 3；产品融合固定用 GPT Image 2 生成位置引导图，再用 Seedance 按秒数生成视频，结果回写到画面工作台节点。</p></div>
           <div class="step"><div class="num">8</div><h3>合成成品</h3><p>片段、字幕、配音、转场合成最终 mp4。当前未实现。</p></div>
         </div>
       </section>
@@ -571,7 +571,7 @@
               <tbody>
                 <tr><td><code>web/app/page.tsx</code></td><td>产品工作台主状态：jobs、activeJobId、selectedFrames、clipboard、ReactFlow 节点和边；负责打开/找回画布工作面板。</td></tr>
                 <tr><td><code>web/components/nodes/index.tsx</code></td><td>DAG 节点定义：Input、VisualLab、Audio、Compose，以及画布工作面板 KeyframePanel / VideoFramePanel；旧 Keyframe/Storyboard/VideoGen 组件保留但不再挂主画布。</td></tr>
-                <tr><td><code>web/components/lightbox.tsx</code></td><td>关键帧素材准备面板：清洗、统一主体候选、参考帧网格、六张主体重绘图、每帧去主体场景图、产品融合和审核。</td></tr>
+                <tr><td><code>web/components/lightbox.tsx</code></td><td>关键帧素材准备面板：清洗、统一主体候选、参考帧网格、六张主体重绘图、每帧去主体场景图、6 行产品融合镜头组和审核。</td></tr>
                 <tr><td><code>web/components/product-library-picker.tsx</code></td><td>SKG 内置白底产品图库选择器：搜索、品类筛选、预览尺寸，并把库内图片复制为当前 job 的 <code>asset</code>。</td></tr>
                 <tr><td><code>web/components/storyboard-bar.tsx</code></td><td>顶部分镜编排条：展示选入编排的关键帧，并作为唯一分镜导航。</td></tr>
                 <tr><td><code>web/components/storyboard-workbench.tsx</code></td><td>顶部分镜编排条下方的明细区：4 图槽、改造目标、时长、自动保存。</td></tr>
@@ -625,8 +625,8 @@ api/main.py
           </div>
           <div class="flow-row">
             <div><strong>你看到的区域</strong><span>关键帧素材审核面板</span></div>
-            <div><strong>主要源码</strong><span><code>FrameLightbox</code>；按“原图/清洗、主体资产、场景图、产品融合、审核”五个页签组织；左侧只放主图/框选画布，但主体资产页左侧改为全部已清洗/已选参考帧网格，场景图页左侧显示全部关键帧并可勾选场景参考，产品融合页左侧接入内置 SKG 白底图库；右侧承载当前页操作、状态和结果。主体资产页只确认一个统一主体，后端按参考重绘六张纯背景、占满画面的标准站立主体图；场景图依赖主体资产，右侧通过地点、生成方式、风格和参考要素拼出可编辑 prompt，再按当前关键帧生成去主体原场景、相似新场景或同构换风格。相关接口包括 <code>cleanupFrame</code>、<code>addElement</code>、<code>generateSubjectAssets</code>、<code>generateSceneAsset</code>、<code>listProductLibrary</code> 和 <code>copyProductLibraryAsset</code>。</span></div>
-            <div><strong>适合怎么描述</strong><span>“这一组关键帧如何共同生成一个统一主体包；某张关键帧的水印、去主体场景图、SKG 产品融合参考和质量风险应该如何审核”。</span></div>
+            <div><strong>主要源码</strong><span><code>FrameLightbox</code>；按“原图/清洗、主体资产、场景图、产品融合、审核”五个页签组织；左侧只放主图/框选画布，但主体资产页左侧改为全部已清洗/已选参考帧网格，场景图页左侧显示全部关键帧并可勾选场景参考，产品融合页左侧改为 6 行镜头表：产品图、白底人物图、人物图上的产品区域、场景图和描述词一一对应；右侧承载当前镜头秒数、GPT Image 2 / Seedance 固定模型、AI 描述草稿、单条生成和批量排队。主体资产页只确认一个统一主体，后端按参考重绘六张纯背景、占满画面的标准站立主体图；场景图依赖主体资产，右侧通过地点、生成方式、风格和参考要素拼出可编辑 prompt，再按当前关键帧生成去主体原场景、相似新场景或同构换风格。相关接口包括 <code>cleanupFrame</code>、<code>addElement</code>、<code>generateSubjectAssets</code>、<code>generateSceneAsset</code>、<code>listProductLibrary</code>、<code>copyProductLibraryAsset</code> 和 <code>createProductFusionGuide</code>。</span></div>
+            <div><strong>适合怎么描述</strong><span>“这一组关键帧如何共同生成一个统一主体包；某张关键帧的水印、去主体场景图、产品融合镜头组和质量风险应该如何审核”。</span></div>
           </div>
           <div class="flow-row">
             <div><strong>你看到的区域</strong><span>顶部分镜头编排下拉面板</span></div>
@@ -706,6 +706,22 @@ SubjectAsset {
   white_score,
   source_path,
   tags[]
+}</pre>
+          </div>
+          <div class="card">
+            <h3>ProductFusionShot</h3>
+            <p>产品融合镜头组的单行数据。每个关键帧最多 6 行，产品图、人物图、产品区域、场景图、动作描述和秒数一一对应；生成时先创建融合引导图，再提交 Seedance。</p>
+            <pre>ProductFusionShot {
+  id,
+  product_image,
+  person_image,
+  product_region: { x, y, w, h },
+  scene_image,
+  action_text,
+  duration,
+  image_model: gpt-image-2,
+  video_model: seedance,
+  guide_image
 }</pre>
           </div>
           <div class="card">
@@ -748,6 +764,7 @@ SubjectAsset {
             <tr><td>场景资产</td><td><code>POST /frames/{idx}/scene-asset</code></td><td><code>generateSceneAsset</code></td><td>在统一主体资产之后，按当前关键帧生成去主体背景板；请求包含 <code>scene_mode</code>、<code>scene_style</code>、<code>prompt</code> 和 <code>source_frame_indices</code>，可用左侧选择的参考帧 + 右侧关键词生成原场景补背景、相似新场景或同构换风格，保留历史版本用于人工审核。</td></tr>
             <tr><td>产品图库</td><td><code>GET /product-library/skg</code></td><td><code>listProductLibrary</code></td><td>读取内置 SKG 白底图库 manifest，返回产品标题、品类、尺寸、白底评分和预览图 URL。</td></tr>
             <tr><td>产品图入库到 job</td><td><code>POST /jobs/{id}/assets/product-library</code></td><td><code>copyProductLibraryAsset</code></td><td>把一个内置产品图库条目复制为当前 job 的普通 asset，返回 <code>ImageRef(kind="asset")</code>，用于画面工作台产品融合和分镜产品参考组。</td></tr>
+            <tr><td>产品融合引导图</td><td><code>POST /jobs/{id}/product-fusion/guide</code></td><td><code>createProductFusionGuide</code></td><td>读取产品图和白底人物图，按用户在人物图上画出的 <code>product_region</code> 合成一张位置引导图；前端固定显示图片模型为 GPT Image 2，返回普通 <code>asset</code> 作为 Seedance 首帧。</td></tr>
             <tr><td>分镜保存</td><td><code>PUT /frames/{idx}/storyboard</code></td><td><code>updateStoryboard</code></td><td>保存 4 图槽、时长和改造说明。</td></tr>
             <tr><td>生图</td><td><code>POST /frames/{idx}/generate</code></td><td><code>generateImage</code></td><td>基于关键帧或已选生成图做 image-to-image，目前可用。</td></tr>
           </tbody>
@@ -857,6 +874,19 @@ SubjectAsset {
         <h2>变更记录</h2>
         <p>这个记录不是 git log 的替代品。它记录“产品理解发生了什么变化、影响了哪些源码、你以后描述需求时该怎么说”。后续每次改功能都要补一条。</p>
         <div class="changelog">
+          <article class="change">
+            <header>
+              <h3>2026-05-14 · 产品融合改为 6 行区域约束镜头组</h3>
+              <span class="tag violet">FrameLightbox</span>
+              <span class="tag orange">Seedance</span>
+            </header>
+            <div class="body">
+              <p><strong>问题：</strong>只把产品图作为参考图无法解决尺寸和位置融合，模型不知道产品应该放在人物或场景里的哪个区域。</p>
+              <p><strong>改动：</strong><code>FrameLightbox</code> 的“产品融合”页改为 6 行镜头组。每行绑定产品图、白底人物图、手动画出的产品区域、场景图、描述词和视频秒数；图片槽支持上传和粘贴，产品图也可从内置 SKG 白底图库选用。右侧固定显示图片模型 <code>GPT Image 2</code> 和视频模型 <code>Seedance</code>，支持 AI 草拟 6 条动作描述、单条生成和批量排队。</p>
+              <p><strong>后端：</strong>新增 <code>POST /jobs/{job_id}/product-fusion/guide</code>。它把产品图按 <code>product_region</code> 合成到白底人物图上，生成普通 <code>asset</code> 引导图；前端再把该引导图作为 Seedance 首帧，并把产品图、人物图、场景图作为参考图提交。</p>
+              <p><strong>影响：</strong><code>api/main.py</code>、<code>web/lib/api.ts</code>、<code>web/app/page.tsx</code>、<code>web/components/lightbox.tsx</code>、<code>web/components/nodes/index.tsx</code>、<code>web/components/dashboard.tsx</code>、<code>docs/source-analysis.html</code>。</p>
+            </div>
+          </article>
           <article class="change">
             <header>
               <h3>2026-05-14 · 增加产品融合和 SKG 内置白底图库</h3>
diff --git a/web/app/page.tsx b/web/app/page.tsx
index e524400..76f6910 100644
--- a/web/app/page.tsx
+++ b/web/app/page.tsx
@@ -18,8 +18,8 @@ import {
 import { ThemeToggle } from "@/components/theme-toggle"
 import {
   addManualFrame, analyzeJob, createJob, getJob, listJobs, uploadJob, deleteJob, deleteFrame, deleteGeneratedImage,
-  deleteGeneratedVideo, deleteCutout, generateStoryboardVideo,
-  type Job, type ImageRef, type StoryboardScene, type FrameExtractMode, type FrameExtractQuality, type FrameExtractTarget,
+  deleteGeneratedVideo, deleteCutout, generateStoryboardVideo, createProductFusionGuide,
+  type Job, type ImageRef, type ProductFusionShot, type StoryboardScene, type FrameExtractMode, type FrameExtractQuality, type FrameExtractTarget,
 } from "@/lib/api"
 
 const NODE_TYPES = {
@@ -443,6 +443,60 @@ export default function Home() {
     }
   }, [job, selectedFrames, setJob])
 
+  const handleGenerateProductFusionVideo = useCallback(async (frameIdx: number, shot: ProductFusionShot) => {
+    if (!job) return
+    const frame = job.frames.find((f) => f.index === frameIdx)
+    if (!frame) return
+    if (!shot.product_image || !shot.person_image || !shot.scene_image || !shot.product_region || !shot.action_text?.trim()) {
+      toast.error("产品融合镜头缺少产品图、人物图、区域、场景图或描述词")
+      return
+    }
+    const duration = shot.duration && shot.duration > 0 ? shot.duration : 5
+    const labelOf = (ref?: ImageRef | null, fallback = "未提供") => ref?.label || fallback
+    try {
+      toast.info(`生成融合引导图 · GPT Image 2 位置约束 · 镜头 ${shot.id || ""}`)
+      const guideRef = await createProductFusionGuide(job.id, {
+        ...shot,
+        image_model: "gpt-image-2",
+        video_model: "seedance",
+      })
+      const region = shot.product_region
+      const prompt = [
+        `竖屏 9:16，${duration.toFixed(1)} 秒，Seedance 产品融合视频。`,
+        "图片模型固定为 GPT Image 2：已根据白底人物图和手动画框生成产品融合引导图；引导图是产品尺寸、位置、贴合关系和起始构图的最高优先级参考。",
+        "视频模型固定为 Seedance：生成单镜头连续视频，不跳切，不换主体，不改变产品身份。",
+        `产品区域：x=${region.x.toFixed(3)}, y=${region.y.toFixed(3)}, w=${region.w.toFixed(3)}, h=${region.h.toFixed(3)}。产品只能在这个框对应的人物/身体/手部区域内融合，不能漂移到其他位置，也不能明显超出框架。`,
+        `产品图：${labelOf(shot.product_image, "SKG 白底产品图")}。严格保持 SKG 产品外观、颜色、材质、U 形结构、按摩触点、按键和比例。`,
+        `白底人物图：${labelOf(shot.person_image, "人物姿态参考")}。人物姿态、手部接触点和产品佩戴关系以这张图为准。`,
+        `场景图：${labelOf(shot.scene_image, "场景参考")}。背景、空间、光线和气氛以这张图为准，但不要改变产品框内位置。`,
+        `动作描述：${shot.action_text.trim()}`,
+        "融合要求：产品必须按引导图位置自然贴合人物或手部，尺寸可信，透视一致，边缘清晰，不能悬浮、穿帮、融化、扭曲或变成其他物体。",
+        "场景要求：把白底人物姿态自然放入场景图的环境中，光线方向和阴影要统一，背景不要出现水印、平台 UI、字幕或竞品包装。",
+        "商业质感：真实拍摄感、干净高级、产品清楚可辨、人物动作自然、镜头稳定。",
+        "禁止：文字、水印、随机品牌、非 SKG 产品、医学治疗承诺、夸张病症、恐怖元素、产品位置漂移、产品超过指定融合区域。",
+      ].join("\n")
+      const updated = await generateStoryboardVideo(job.id, frameIdx, {
+        prompt,
+        duration,
+        first_image: guideRef,
+        last_image: null,
+        product_images: [shot.product_image, shot.person_image, shot.scene_image].filter(Boolean) as ImageRef[],
+        subject_image: shot.person_image,
+        scene_image: shot.scene_image,
+        product_image: shot.product_image,
+        action_image: guideRef,
+        source_ref: null,
+        model: "seedance",
+        size: "720x1280",
+      })
+      setJob(updated)
+      void navigator.clipboard?.writeText(prompt).catch(() => {})
+      toast.success("产品融合视频已进入 Video Gen 队列")
+    } catch (e) {
+      toast.error("产品融合生成失败：" + (e instanceof Error ? e.message : String(e)))
+    }
+  }, [job, setJob])
+
   // 启动恢复：URL ?job=xxx,yyy 优先；否则从后端拉全部历史（按 mtime 倒序，最新放末尾）
   useEffect(() => {
     const params = new URLSearchParams(window.location.search)
@@ -597,9 +651,10 @@ export default function Home() {
       setWorkbenchOpen(true)
     },
     onCopyImage: handleCopyImage,
+    onGenerateProductFusionVideo: handleGenerateProductFusionVideo,
     pinnedNodes,
     onToggleNodePin: handleToggleNodePin,
-  }), [job, jobs, activeJobId, submitting, analyzing, frameTargets, frameCounts, frameQualities, selectedFrames, expandedFrame, framePanelScale, framePanelPinned, framePanelDock, videoPanelJobId, videoPanelScale, videoPanelDock, handleSubmit, handleUpload, handleAnalyze, handleAnalyzeJob, handleFrameTargetChange, handleFrameCountChange, handleFrameQualityChange, handleToggleFrame, handleOpenFramePanel, handleFramePanelScaleChange, handleAddManualFrame, handleAddManualFrameForJob, handleOpenVideoPanel, handleVideoPanelScaleChange, handleSwitchJob, setJob, handleDeleteJob, handleDeleteFrame, handleDeleteFrameForJob, handleDeleteGenerated, handleDeleteVideo, handleDeleteCutout, handleCopyImage, pinnedNodes, handleToggleNodePin])
+  }), [job, jobs, activeJobId, submitting, analyzing, frameTargets, frameCounts, frameQualities, selectedFrames, expandedFrame, framePanelScale, framePanelPinned, framePanelDock, videoPanelJobId, videoPanelScale, videoPanelDock, handleSubmit, handleUpload, handleAnalyze, handleAnalyzeJob, handleFrameTargetChange, handleFrameCountChange, handleFrameQualityChange, handleToggleFrame, handleOpenFramePanel, handleFramePanelScaleChange, handleAddManualFrame, handleAddManualFrameForJob, handleOpenVideoPanel, handleVideoPanelScaleChange, handleSwitchJob, setJob, handleDeleteJob, handleDeleteFrame, handleDeleteFrameForJob, handleDeleteGenerated, handleDeleteVideo, handleDeleteCutout, handleCopyImage, handleGenerateProductFusionVideo, pinnedNodes, handleToggleNodePin])
 
   // 用 useNodesState 让 ReactFlow 自己管位置（避免轮询时重置 drag）
   const savedSizes = useMemo(() => loadNodeSizes(), [])
diff --git a/web/components/dashboard.tsx b/web/components/dashboard.tsx
index 4b74e92..279a76a 100644
--- a/web/components/dashboard.tsx
+++ b/web/components/dashboard.tsx
@@ -328,6 +328,7 @@ export const Dashboard = forwardRef<DashboardHandle, Props>(function Dashboard({
                       setExpanded(new Set([key]))
                     }}
                     onCopyImage={data.onCopyImage}
+                    onGenerateProductFusionVideo={data.onGenerateProductFusionVideo}
                   />
                 ) : (
                   renderSection(t.key)
diff --git a/web/components/lightbox.tsx b/web/components/lightbox.tsx
index 6640979..4650dbe 100644
--- a/web/components/lightbox.tsx
+++ b/web/components/lightbox.tsx
@@ -971,13 +971,25 @@ export function FrameLightbox({ jobId, frames, activeIndex, selected, onClose, o
                     </div>
                     <div className="flex items-center justify-between gap-1 border-t border-white/10 px-1.5 py-1">
                       <span className="truncate text-[9.5px] text-white/55">{label}</span>
-                      <button
-                        type="button"
-                        onClick={() => openFusionUpload(slot)}
-                        className="rounded bg-white/10 px-1.5 py-0.5 text-[9px] text-white/70 hover:bg-white/18 hover:text-white"
-                      >
-                        上传
-                      </button>
+                      <div className="flex items-center gap-1">
+                        <button
+                          type="button"
+                          onClick={() => {
+                            setFusionUploadTarget(slot)
+                            toast.message(`已选中「${label}」槽位，现在可 Cmd+V 粘贴图片`)
+                          }}
+                          className="rounded bg-white/10 px-1.5 py-0.5 text-[9px] text-white/60 hover:bg-white/18 hover:text-white"
+                        >
+                          粘贴
+                        </button>
+                        <button
+                          type="button"
+                          onClick={() => openFusionUpload(slot)}
+                          className="rounded bg-white/10 px-1.5 py-0.5 text-[9px] text-white/70 hover:bg-white/18 hover:text-white"
+                        >
+                          上传
+                        </button>
+                      </div>
                     </div>
                   </div>
                 ))}
@@ -1380,30 +1392,82 @@ export function FrameLightbox({ jobId, frames, activeIndex, selected, onClose, o
             </section>
           )}
           {activeTab === "product" && (
-            <section className="rounded-lg border border-amber-300/18 bg-amber-500/[0.08] p-2.5 text-[10.5px] leading-relaxed text-white/58">
-              <div className="mb-2 text-[12px] font-semibold text-white">产品融合目标</div>
-              <div className="mb-2 overflow-hidden rounded-md border border-white/10 bg-black">
-                <img src={mainSrc} alt={`frame ${f.index}`} className="max-h-48 w-full object-contain" draggable={false} />
-                <div className="flex items-center justify-between border-t border-white/10 px-2 py-1 text-[9.5px] text-white/42">
-                  <span>分镜 {f.index + 1}</span>
-                  <span>{f.timestamp.toFixed(2)}s</span>
+            <>
+              <section className="rounded-lg border border-amber-300/18 bg-amber-500/[0.08] p-2.5 text-[10.5px] leading-relaxed text-white/58">
+                <div className="mb-2 flex items-center justify-between gap-2">
+                  <div className="text-[12px] font-semibold text-white">镜头 {activeFusionShot + 1} 设置</div>
+                  <span className="text-[9px] text-white/40">{fusionSaving ? "保存中" : "自动保存"}</span>
                 </div>
-              </div>
-              <div className="space-y-1.5">
-                <div className="rounded border border-white/10 bg-black/25 px-2 py-1.5">
-                  <div className="text-[9px] text-white/35">图库来源</div>
-                  <div className="text-white/70">桌面 SKG 产品图 · gallery 白底筛选</div>
+                <div className="mb-2 grid grid-cols-2 gap-1.5">
+                  <div className="rounded border border-white/10 bg-black/25 px-2 py-1">
+                    <div className="text-[9px] text-white/35">图片模型</div>
+                    <div className="text-white/80">GPT Image 2</div>
+                  </div>
+                  <div className="rounded border border-white/10 bg-black/25 px-2 py-1">
+                    <div className="text-[9px] text-white/35">视频模型</div>
+                    <div className="text-white/80">Seedance</div>
+                  </div>
                 </div>
-                <div className="rounded border border-white/10 bg-black/25 px-2 py-1.5">
-                  <div className="text-[9px] text-white/35">使用方式</div>
-                  <div className="text-white/70">复制产品图后，在画面工作台加入 SKG 产品参考组。</div>
+                <label className="mb-2 block">
+                  <span className="mb-1 block text-[9px] text-white/35">视频秒数</span>
+                  <select
+                    value={currentFusionShot?.duration ?? 5}
+                    onChange={(e) => updateFusionShot(activeFusionShot, { duration: Number(e.target.value) }, true)}
+                    className="h-8 w-full rounded-md border border-white/10 bg-black/35 px-2 text-[11px] text-white/75 outline-none"
+                  >
+                    {FUSION_DURATIONS.map((seconds) => (
+                      <option key={seconds} value={seconds}>{seconds} 秒</option>
+                    ))}
+                  </select>
+                </label>
+                <label className="mb-2 block">
+                  <div className="mb-1 flex items-center justify-between gap-2">
+                    <span className="text-[9px] text-white/35">描述词 · 人在干什么</span>
+                    <button
+                      type="button"
+                      onClick={draftFusionDescriptions}
+                      className="rounded bg-white/10 px-1.5 py-0.5 text-[9.5px] text-white/60 hover:bg-white/18 hover:text-white"
+                    >
+                      AI 草拟 6 条
+                    </button>
+                  </div>
+                  <textarea
+                    value={currentFusionShot?.action_text ?? ""}
+                    onChange={(e) => updateFusionShot(activeFusionShot, { action_text: e.target.value })}
+                    onBlur={() => void persistFusionShots(fusionShots)}
+                    placeholder="例如：人物把 SKG 颈部按摩仪戴到脖子上，手部轻轻调整两侧机身，场景是办公桌前。"
+                    className="h-24 w-full resize-none rounded-md border border-white/10 bg-black/35 px-2 py-1.5 text-[10px] leading-relaxed text-white/75 outline-none placeholder:text-white/25"
+                  />
+                </label>
+                <div className="grid grid-cols-2 gap-1.5">
+                  <button
+                    type="button"
+                    onClick={() => void runFusionVideo(activeFusionShot)}
+                    disabled={!!fusionGenerating || !onGenerateProductFusionVideo}
+                    className="rounded-md bg-amber-500/75 px-2 py-1.5 text-[11px] font-medium text-white transition hover:bg-amber-400 disabled:cursor-not-allowed disabled:opacity-40 inline-flex items-center justify-center gap-1"
+                  >
+                    {fusionGenerating === activeFusionShot ? <Loader2 className="h-3 w-3 animate-spin" /> : <Play className="h-3 w-3" />}
+                    生成本条
+                  </button>
+                  <button
+                    type="button"
+                    onClick={() => void runAllFusionVideos()}
+                    disabled={!!fusionGenerating || !onGenerateProductFusionVideo}
+                    className="rounded-md bg-white/10 px-2 py-1.5 text-[11px] font-medium text-white/75 transition hover:bg-white/18 hover:text-white disabled:cursor-not-allowed disabled:opacity-40 inline-flex items-center justify-center gap-1"
+                  >
+                    {fusionGenerating === "all" ? <Loader2 className="h-3 w-3 animate-spin" /> : <Sparkles className="h-3 w-3" />}
+                    批量排队
+                  </button>
                 </div>
-                <div className="rounded border border-white/10 bg-black/25 px-2 py-1.5">
-                  <div className="text-[9px] text-white/35">生成约束</div>
-                  <div className="text-white/70">白底图保留外观、颜色、结构；有人物的产品示范图也可作为佩戴参考。</div>
-                </div>
-              </div>
-            </section>
+              </section>
+              <ProductLibraryPicker
+                jobId={jobId}
+                compact
+                buttonLabel="选用"
+                title="当前镜头产品图"
+                onPick={(ref) => assignFusionImage("product_image", ref)}
+              />
+            </>
           )}
           {activeTab === "review" && (
             <section className="rounded-lg border border-white/10 bg-white/[0.035] p-2.5 text-[10.5px] leading-relaxed text-white/58">
diff --git a/web/components/nodes/index.tsx b/web/components/nodes/index.tsx
index c9c1c93..e5d243d 100644
--- a/web/components/nodes/index.tsx
+++ b/web/components/nodes/index.tsx
@@ -17,7 +17,7 @@ import { toast } from "sonner"
 import { NodeShell, type NodeStatus, type NodeKind } from "./node-shell"
 import { HoverPreview } from "./hover-preview"
 import {
-  type Job, type ImageRef, type FrameExtractMode, type FrameExtractQuality, type FrameExtractTarget,
+  type Job, type ImageRef, type ProductFusionShot, type FrameExtractMode, type FrameExtractQuality, type FrameExtractTarget,
   apiAssetUrl, effectiveFrameUrl, videoUrl, hasCutout, representativeCutoutUrl,
 } from "@/lib/api"
 import { FrameLightbox } from "@/components/lightbox"
@@ -73,6 +73,7 @@ export interface NodeData {
   onOpenStoryboard?: (frameIdx: number) => void  // 打开分镜头编排专属面板
   onOpenWorkbench?: (frameIdx?: number) => void  // 展开顶部分镜编排内嵌面板
   onCopyImage?: (ref: ImageRef) => void  // 复制图片到全局剪贴板（粘贴到分镜头编排插槽）
+  onGenerateProductFusionVideo?: (frameIdx: number, shot: ProductFusionShot) => Promise<void> | void
   pinnedNodes?: Set<string>              // 已钉住的节点 id 集合 — 钉住后位置 + 尺寸锁定
   onToggleNodePin?: (id: string) => void
 }
@@ -1957,6 +1958,7 @@ export function KeyframePanelNode({ data }: any) {
           onToggleSelect={d.onToggleFrame}
           onJobUpdate={d.onJobUpdate}
           onCopyImage={d.onCopyImage}
+          onGenerateProductFusionVideo={d.onGenerateProductFusionVideo}
         />
       </div>
       <button