diff --git a/.memory/worklog.json b/.memory/worklog.json
index bf9fc0a..f7df35a 100644
--- a/.memory/worklog.json
+++ b/.memory/worklog.json
@@ -2255,6 +2255,19 @@
       "message": "auto-save 2026-05-13 19:50 (~4)",
       "hash": "a471f89",
       "files_changed": 4
+    },
+    {
+      "ts": "2026-05-13T19:56:22+08:00",
+      "type": "commit",
+      "message": "auto-save 2026-05-13 19:56 (~4)",
+      "hash": "28de936",
+      "files_changed": 4
+    },
+    {
+      "ts": "2026-05-13T11:59:29Z",
+      "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 2026-05-13 19:56 (~4)",
+      "files_changed": 6
     }
   ]
 }
diff --git a/docs/source-analysis.html b/docs/source-analysis.html
index d2641da..a1107e8 100644
--- a/docs/source-analysis.html
+++ b/docs/source-analysis.html
@@ -573,7 +573,7 @@
                 <tr><td><code>web/components/nodes/index.tsx</code></td><td>DAG 节点定义：Input、Keyframe、ASR、Translate、Rewrite、Storyboard、VideoGen、Compose。</td></tr>
                 <tr><td><code>web/components/lightbox.tsx</code></td><td>镜头拆解和元素提取的主工作面板：清洗、识别、元素编辑、区域提取、抠图。</td></tr>
                 <tr><td><code>web/components/storyboard-bar.tsx</code></td><td>顶部已选分镜条：展示选入编排的关键帧，点击进入工作台。</td></tr>
-                <tr><td><code>web/components/storyboard-workbench.tsx</code></td><td>全屏分镜编排工作台：4 图槽、改造目标、时长、自动保存。</td></tr>
+                <tr><td><code>web/components/storyboard-workbench.tsx</code></td><td>顶部分镜编排内嵌面板：4 图槽、改造目标、时长、自动保存。</td></tr>
                 <tr><td><code>web/lib/api.ts</code></td><td>前端类型和 API client，是前后端数据契约镜像。</td></tr>
               </tbody>
             </table>
@@ -636,7 +636,7 @@ api/main.py
             <div><strong>适合怎么描述</strong><span>“选好的分镜如何按时间序组织，以及如何进入具体分镜编排”。</span></div>
           </div>
           <div class="flow-row">
-            <div><strong>你看到的区域</strong><span>分镜头编排工作台</span></div>
+            <div><strong>你看到的区域</strong><span>顶部分镜头编排下拉面板</span></div>
             <div><strong>主要源码</strong><span><code>StoryboardWorkbench</code>；保存到 <code>frame.storyboard</code>；接口 <code>PUT /storyboard</code>。</span></div>
             <div><strong>适合怎么描述</strong><span>“每个分镜需要哪些图片槽、哪些改造说明，如何为视频生成做准备”。</span></div>
           </div>
@@ -813,7 +813,7 @@ api/main.py
           </div>
           <div class="todo-item">
             <h3>改分镜工作台</h3>
-            <p>“我在全屏分镜编排工作台，每个分镜需要哪些槽位、字段如何命名、保存后如何传给后续生成视频。”</p>
+            <p>“我在顶部分镜头编排下拉面板，每个分镜需要哪些槽位、字段如何命名、保存后如何传给后续生成视频。”</p>
           </div>
           <div class="todo-item">
             <h3>改数据/接口</h3>
@@ -830,6 +830,18 @@ api/main.py
         <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>2026-05-13 · 分镜头编排工作台改为内嵌下拉</h3>
+              <span class="tag violet">StoryboardWorkbench</span>
+              <span class="tag violet">StoryboardBar</span>
+            </header>
+            <div class="body">
+              <p><strong>问题：</strong>元素改造节点等入口仍会打开 <code>fixed inset-0</code> 的全屏 <code>StoryboardWorkbench</code>，用户感觉像跳转页面。</p>
+              <p><strong>改动：</strong>移除 <code>StoryboardWorkbench</code> 的 portal 全屏承载方式，改为渲染在顶部分镜栏下方；所有“打开编排”入口只展开这个内嵌区域。</p>
+              <p><strong>影响：</strong><code>web/components/storyboard-workbench.tsx</code>、<code>web/components/storyboard-bar.tsx</code>、<code>web/app/page.tsx</code>、<code>web/components/nodes/index.tsx</code>。</p>
+            </div>
+          </article>
           <article class="change">
             <header>
               <h3>2026-05-13 · 钉住面板停靠到分镜头编排边缘</h3>
@@ -849,8 +861,8 @@ api/main.py
             </header>
             <div class="body">
               <p><strong>问题：</strong>顶部 <code>StoryboardBar</code> 的“进入编排”和分镜缩略图点击会打开全屏 <code>StoryboardWorkbench</code>，打断当前画布流程。</p>
-              <p><strong>改动：</strong>顶部按钮改为“展开编排”，只下拉展示当前分镜列表；缩略图点击只聚焦该分镜，不再触发全屏跳转。</p>
-              <p><strong>影响：</strong><code>web/components/storyboard-bar.tsx</code>、<code>web/app/page.tsx</code>；全屏工作台仍保留给其他明确入口。</p>
+              <p><strong>改动：</strong>顶部按钮改为“展开编排”，只下拉展示当前分镜列表；缩略图点击只聚焦该分镜，不再触发全屏跳转。后续已把工作台整体改成内嵌下拉，见上方最新记录。</p>
+              <p><strong>影响：</strong><code>web/components/storyboard-bar.tsx</code>、<code>web/app/page.tsx</code>。</p>
             </div>
           </article>
           <article class="change">
diff --git a/web/app/page.tsx b/web/app/page.tsx
index 5bd2cc3..78e2972 100644
--- a/web/app/page.tsx
+++ b/web/app/page.tsx
@@ -408,12 +408,27 @@ export default function Home() {
 
         {/* 右区：顶部 storyboard bar + DAG 节点流图 */}
         <section className="relative flex-1 min-h-0 flex flex-col">
-          <StoryboardBar
-            job={job}
-            selectedFrames={selectedFrames}
-            focusedFrame={storyboardFrame}
-            onFocusFrame={setStoryboardFrame}
-          />
+          <div data-storyboard-dock="true" className="relative z-20 flex-shrink-0">
+            <StoryboardBar
+              job={job}
+              selectedFrames={selectedFrames}
+              focusedFrame={storyboardFrame}
+              onFocusFrame={setStoryboardFrame}
+              onOpenWorkbench={(idx?: number) => {
+                if (typeof idx === "number") setStoryboardFrame(idx)
+                setWorkbenchOpen(true)
+              }}
+            />
+            <StoryboardWorkbench
+              job={job}
+              selectedFrames={selectedFrames}
+              open={workbenchOpen}
+              onClose={() => setWorkbenchOpen(false)}
+              onJobUpdate={setJob as any}
+              clipboard={clipboard}
+              focusedFrame={storyboardFrame}
+            />
+          </div>
           <div className="relative flex-1 min-h-0">
           <ReactFlow
             nodes={nodes}
@@ -446,17 +461,6 @@ export default function Home() {
           onAddFrame={handleAddManualFrame}
         />
 
-        {/* 分镜头编排工作台 — 全屏覆盖 DAG */}
-        <StoryboardWorkbench
-          job={job}
-          selectedFrames={selectedFrames}
-          open={workbenchOpen}
-          onClose={() => setWorkbenchOpen(false)}
-          onJobUpdate={setJob as any}
-          clipboard={clipboard}
-          focusedFrame={storyboardFrame}
-        />
-
       </main>
     </>
   )
diff --git a/web/components/nodes/index.tsx b/web/components/nodes/index.tsx
index 45f20d1..196b7ce 100644
--- a/web/components/nodes/index.tsx
+++ b/web/components/nodes/index.tsx
@@ -37,8 +37,8 @@ export interface NodeData {
   onDeleteFrame?: (idx: number) => void  // 删整张关键帧
   onDeleteGenerated?: (frameIdx: number, genId: string) => void  // 删单张生成图
   onOpenStoryboard?: (frameIdx: number) => void  // 打开分镜头编排专属面板
-  onOpenWorkbench?: (frameIdx?: number) => void  // 打开全屏分镜编排工作台
-  onCopyImage?: (ref: ImageRef) => void  // 复制图片到全局剪贴板（粘贴到分镜头编排工作台插槽）
+  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）
 }
 
 /* ---- 状态映射工具 ---- */
@@ -522,8 +522,9 @@ export function KeyframePanelNode({ data }: any) {
 
   const getStoryboardDockTop = () => {
     if (typeof window === "undefined") return 64
+    const dock = document.querySelector<HTMLElement>('[data-storyboard-dock="true"]')
     const bar = document.querySelector<HTMLElement>('[data-storyboard-bar="true"]')
-    const bottom = bar?.getBoundingClientRect().bottom ?? 52
+    const bottom = (dock ?? bar)?.getBoundingClientRect().bottom ?? 52
     return Math.max(56, Math.min(window.innerHeight - 120, bottom + 10))
   }
 
@@ -535,7 +536,8 @@ export function KeyframePanelNode({ data }: any) {
     }
 
     syncDock()
-    const bar = document.querySelector<HTMLElement>('[data-storyboard-bar="true"]')
+    const bar = document.querySelector<HTMLElement>('[data-storyboard-dock="true"]')
+      ?? document.querySelector<HTMLElement>('[data-storyboard-bar="true"]')
     let observer: ResizeObserver | null = null
     if (bar && "ResizeObserver" in window) {
       observer = new ResizeObserver(syncDock)
diff --git a/web/components/storyboard-bar.tsx b/web/components/storyboard-bar.tsx
index a21b18f..8fdc8fc 100644
--- a/web/components/storyboard-bar.tsx
+++ b/web/components/storyboard-bar.tsx
@@ -9,9 +9,10 @@ interface Props {
   selectedFrames: Set<number>
   focusedFrame: number | null
   onFocusFrame: (idx: number | null) => void
+  onOpenWorkbench?: (frameIdx?: number) => void
 }
 
-export function StoryboardBar({ job, selectedFrames, focusedFrame, onFocusFrame }: Props) {
+export function StoryboardBar({ job, selectedFrames, focusedFrame, onFocusFrame, onOpenWorkbench }: Props) {
   const [collapsed, setCollapsed] = useState(false)
   const [mounted, setMounted] = useState(false)
   useEffect(() => setMounted(true), [])
@@ -64,8 +65,10 @@ export function StoryboardBar({ job, selectedFrames, focusedFrame, onFocusFrame
           <button
             onClick={() => {
               if (frames.length === 0) return
-              if (focusedFrame === null) onFocusFrame(frames[0].index)
+              const nextFrame = focusedFrame ?? frames[0].index
+              if (focusedFrame === null) onFocusFrame(nextFrame)
               setCollapsed(false)
+              onOpenWorkbench?.(nextFrame)
             }}
             disabled={frames.length === 0}
             className="text-[11px] px-2.5 py-1 rounded-md bg-gradient-to-r from-violet-500 to-pink-500 hover:from-violet-400 hover:to-pink-400 text-white inline-flex items-center gap-1 disabled:opacity-40 disabled:cursor-not-allowed font-medium shadow"
diff --git a/web/components/storyboard-workbench.tsx b/web/components/storyboard-workbench.tsx
index 6394be2..12f4463 100644
--- a/web/components/storyboard-workbench.tsx
+++ b/web/components/storyboard-workbench.tsx
@@ -1,6 +1,5 @@
 "use client"
 import { useEffect, useState, useRef, type ReactNode } from "react"
-import { createPortal } from "react-dom"
 import { X, LayoutGrid, Loader2, Check, Wand2 } from "lucide-react"
 import {
   type Job, type StoryboardScene, type ImageRef,
@@ -94,9 +93,9 @@ export function StoryboardWorkbench({ job, selectedFrames, open, onClose, onJobU
 
   const aspect = job.height > 0 ? `${job.width}/${job.height}` : "9/16"
 
-  return createPortal(
+  return (
     <div
-      className="fixed inset-0 z-[200] bg-black/92 backdrop-blur-xl flex flex-col"
+      className="relative z-20 h-[min(680px,calc(100vh-170px))] flex-shrink-0 border-b border-white/10 bg-black/90 backdrop-blur-xl flex flex-col shadow-2xl"
       style={{ animation: "drawer-in 0.2s cubic-bezier(0.32, 0.72, 0, 1)" }}
     >
       {/* Header */}
@@ -117,9 +116,9 @@ export function StoryboardWorkbench({ job, selectedFrames, open, onClose, onJobU
           <button
             onClick={onClose}
             className="h-8 px-3 rounded-md bg-white/10 hover:bg-white/20 text-white inline-flex items-center gap-1.5 text-[12px]"
-            title="返回 DAG (Esc)"
+            title="收起编排 (Esc)"
           >
-            <X className="h-3.5 w-3.5" /> 返回 DAG
+            <X className="h-3.5 w-3.5" /> 收起
           </button>
         </div>
       </header>
@@ -338,10 +337,9 @@ export function StoryboardWorkbench({ job, selectedFrames, open, onClose, onJobU
 
       {/* 底部快捷 */}
       <footer className="border-t border-white/10 px-5 py-1.5 text-[10px] text-white/40 font-mono text-center bg-black/40">
-        ESC 返回 DAG · 字段变更自动保存
+        ESC 收起编排 · 字段变更自动保存
       </footer>
-    </div>,
-    document.body,
+    </div>
   )
 }