diff --git a/.project-docs/30-worklog/tasks/20260928-teacher-reply-cleanup-c8e4a219.md b/.project-docs/30-worklog/tasks/20260928-teacher-reply-cleanup-c8e4a219.md
index 82d16dca..20d866bd 100644
--- a/.project-docs/30-worklog/tasks/20260928-teacher-reply-cleanup-c8e4a219.md
+++ b/.project-docs/30-worklog/tasks/20260928-teacher-reply-cleanup-c8e4a219.md
@@ -8,7 +8,7 @@
 - Worktree: /Users/chillishark/Makelore 麦洛/.codex-worktrees/makelore-teacher-reply-cleanup
 - Base commit: ae0f72d8fa0089f87b41d272da220e1c1397aec8
 - Owner: codex
-- Status: Ready for Integration
+- Status: In progress
 
 ## Scope
 
@@ -127,3 +127,12 @@
 - Refreshed existing trial Renderer from committed 784fa8c to `index-DLBsnWbW.js`. Main PID 36109 and profile retained. Final DOM confirms visible composer hint text “继续看看👀” with `rgb(255, 242, 201)` background; captured and inspected the actual empty-composer screenshot `visible-hint-preview.png` in the local trial root. Login/account/project/draft/input/route checks passed; no generated conversation content or requests were inserted for demonstration.
 - Window/panel/selection state changed during the live verification: the consultation panel was closed at snapshot and open at final capture, and the selection equality check was false. Preserved current interaction without a second forced selection restore; do not claim exact conversation/window state remained unchanged. The foreground monitor already observed the trial as its sole foreground application; refresh invoked no show/focus calls. Final capture was taken with the window unfocused.
 - Temporary backup memory and inspector removed; local launch/build metadata updated. No cloud publication, Main restart, main merge or push. Final documentation drift has only the previously recorded unchanged imported task document diagnostic.
+
+## Embedded Work Preview Header Follow-up
+
+- User requests removal of the pictured horizontal “作品预览” title/icon/close row. Continue the current temporary workspace preview without taking desktop focus.
+- Same feature ownership resumed and verified. Reused unchanged previously loaded project context; reread own task/entry and newly active welcome/truncation/role-review task records. Existing peer scopes remain unchanged; no work-preview overlap or unresolved product decision. Gate Passed. This scoped presentation change preserves the shared browser's lifecycle, navigation, recovery, native viewport and separate developer-browser UI.
+- Plan: hide the redundant header only in embedded work preview, retain an accessible aside name and the existing top-level operation/work tabs; keep address navigation and standalone browser close controls. Update existing unit/native E2E assertions, compile, and refresh only the temporary Renderer. Main/remote branches and installed production application remain unchanged.
+
+- Implemented conditional removal of the entire embedded title row (globe icon, “作品预览”, close button); the work-preview aside remains accessibly named. Address/back/forward/reload controls and the native viewport remain, while the standalone developer-browser header and close action are unchanged.
+- Passed: 44 AgentBrowserPanel/CodingChatPanel unit tests, typecheck, full lint plus scoped test lint, full production compile and whitespace check. Updated shared Electron work-tab assertions without launching a native test instance.
diff --git a/README.md b/README.md
index 5e09cd5d..e795dbdb 100644
--- a/README.md
+++ b/README.md
@@ -154,7 +154,7 @@ Pi 正式包必须继续运行 `pnpm run verify:artifact:pi`、`pnpm run smoke:p
 - 首次发送会立即生成稳定的乐观用户消息；HTTP 202 只表示本地 Agent 已接收。后续失败不会删除已接受消息，不确定交付不会自动重发；准备失败可在目标 Conversation 上手动恢复。
 - 运行中的 Conversation 可把新消息作为 steer 引导当前回答或 follow-up 排到下一轮，并显示队列位置；队列正常在 `agent_settled` 后释放，用户可中止当前运行。若 Pi 已终结但该握手丢失，Main 会在 30 秒宽限后仅探测目标线程：权威 idle 状态会补齐持久化最终回复并 exactly-once 释放 ownership，矛盾状态则显式失败该目标，且不会重放已接受请求。select/confirm/input/editor 交互在输入区上方回答，select 除预设选项外支持自由输入；交互提交或取消后立即从输入区移除，失效请求会就地提示并允许重试或取消。
 - 隐藏 Conversation 的红色新消息标记只在出现新的待回答交互，或当前任务进入 completed、failed、aborted 终态时设置；助手流式文字、思考、工具过程和单个工具失败不会提前触发红点。
-- 核心聊天页左侧显示品牌、项目及其对话；标题栏显示项目与当前 Conversation，并在右上角提供统一智能体入口和必要的中止/恢复按钮。中央“操作对话／作品”切换真实对话与项目浏览器预览，切换时保留操作草稿。点击智能体头像或主动气泡中的聊天入口，会同时打开智能体咨询并默认切到“作品”；仍可手动切回操作对话，单纯收到智能体气泡不会切换页面。点击“作品”会由 Main 检查已知本地页面：可访问则直接复用，否则向编程 Agent 发送固定的内部打开作品指令，检查现有服务、按项目实际脚本启动并调用 `agent_browser` 展示。当前项目正在制作时先等待；同一启动过程防止重复派发。失败时提供明确恢复入口：登录失效可“登录并继续”，返回相同账号和项目后接着打开；作品未打开可“帮我检查并打开”；普通操作中断可“帮我继续”，先核对已有进度再继续，保留当前输入草稿。仅对连接检查做两次有上限的自动重连并复用请求身份，不自动重放结果不确定的操作。最新失败提供一个恢复入口，空错误不再显示“本次处理失败。”；作品成功打开后收起对应失败提示。后台休眠释放预览窗口后，Main 在本次应用会话内保留项目对应的已验证地址，包括从地址栏或 Agent 成功打开的页面；回到前台或收到关闭状态时自动检查并恢复仍可访问的作品，不重复调用 Agent，也不依赖模型登录。手动打开成功会覆盖旧的启动请求结果，但不关闭后续恢复检查。窗口显示时发生关闭竞态会自动重试两次；仍无法显示则提供“重新打开作品”，不向学生暴露“开发浏览器已关闭”等内部错误，也不无限停留在打开中。内部指令不消耗学生草稿，也不参与对话自动命名，时间线隐藏这条内部指令及“已点击打开作品”操作记录，保留真实的处理结果和错误。学生作品区不展示 Console/Network 调试栏，也不订阅这两个面板的调试事件；Agent 的后台调试能力保留。项目设置、归档和会话管理保留在左侧。从已持久化的 user 消息仍可“从这里创建新对话分支”，assistant 消息和未持久化消息不提供该动作；分支只创建新的 Conversation 历史，不表示文件回滚。Pi 的工具调用与浏览器附件继续在对应的对话过程节点中按需展开；分享、待办、全局运行时和 revert/unrevert 不属于该产品界面。
+- 核心聊天页左侧显示品牌、项目及其对话；标题栏显示项目与当前 Conversation，并在右上角提供统一智能体入口和必要的中止/恢复按钮。中央“操作对话／作品”切换真实对话与项目浏览器预览，切换时保留操作草稿。作品区直接显示地址栏和页面，不再重复显示“作品预览”标题、图标及关闭横栏；通过上方“操作对话”标签切回对话。点击智能体头像或主动气泡中的聊天入口，会同时打开智能体咨询并默认切到“作品”；仍可手动切回操作对话，单纯收到智能体气泡不会切换页面。点击“作品”会由 Main 检查已知本地页面：可访问则直接复用，否则向编程 Agent 发送固定的内部打开作品指令，检查现有服务、按项目实际脚本启动并调用 `agent_browser` 展示。当前项目正在制作时先等待；同一启动过程防止重复派发。失败时提供明确恢复入口：登录失效可“登录并继续”，返回相同账号和项目后接着打开；作品未打开可“帮我检查并打开”；普通操作中断可“帮我继续”，先核对已有进度再继续，保留当前输入草稿。仅对连接检查做两次有上限的自动重连并复用请求身份，不自动重放结果不确定的操作。最新失败提供一个恢复入口，空错误不再显示“本次处理失败。”；作品成功打开后收起对应失败提示。后台休眠释放预览窗口后，Main 在本次应用会话内保留项目对应的已验证地址，包括从地址栏或 Agent 成功打开的页面；回到前台或收到关闭状态时自动检查并恢复仍可访问的作品，不重复调用 Agent，也不依赖模型登录。手动打开成功会覆盖旧的启动请求结果，但不关闭后续恢复检查。窗口显示时发生关闭竞态会自动重试两次；仍无法显示则提供“重新打开作品”，不向学生暴露“开发浏览器已关闭”等内部错误，也不无限停留在打开中。内部指令不消耗学生草稿，也不参与对话自动命名，时间线隐藏这条内部指令及“已点击打开作品”操作记录，保留真实的处理结果和错误。学生作品区不展示 Console/Network 调试栏，也不订阅这两个面板的调试事件；Agent 的后台调试能力保留。项目设置、归档和会话管理保留在左侧。从已持久化的 user 消息仍可“从这里创建新对话分支”，assistant 消息和未持久化消息不提供该动作；分支只创建新的 Conversation 历史，不表示文件回滚。Pi 的工具调用与浏览器附件继续在对应的对话过程节点中按需展开；分享、待办、全局运行时和 revert/unrevert 不属于该产品界面。
 
 - 普通消息接收成功不显示额外的技术提示；准备、错误和排队状态仍正常反馈。发送状态按请求对应的运行结束收敛，保留期间输入的新草稿；恢复历史时优先以持久消息身份关联，避免相同文本串联到其他请求。
 
diff --git a/src/pages/Chat/AgentBrowserPanel.tsx b/src/pages/Chat/AgentBrowserPanel.tsx
index bc8e0220..25e1feb3 100644
--- a/src/pages/Chat/AgentBrowserPanel.tsx
+++ b/src/pages/Chat/AgentBrowserPanel.tsx
@@ -480,23 +480,24 @@ export function AgentBrowserPanel({
       ref={panelRef}
       className={cn(embedded ? 'relative flex min-h-0 w-full min-w-0 flex-1 flex-col overflow-hidden bg-background' : 'relative flex w-[400px] min-w-[300px] max-w-[48vw] shrink-0 flex-col overflow-hidden border-l border-border/80 bg-background shadow-[-16px_0_32px_hsl(220_20%_16%_/_0.06)] max-[900px]:fixed max-[900px]:inset-y-10 max-[900px]:right-0 max-[900px]:z-40 max-[900px]:max-w-[min(92vw,420px)]')}
       data-testid="agent-browser-panel"
+      aria-label={embedded ? '作品预览' : '开发浏览器'}
     >
-      <div className="flex h-10 shrink-0 items-center gap-2 border-b border-border/70 px-2.5">
+      {!embedded && <div className="flex h-10 shrink-0 items-center gap-2 border-b border-border/70 px-2.5">
         <span className="flex h-6 w-6 items-center justify-center rounded-md bg-brand-soft text-brand">
           <Globe2 className="h-3.5 w-3.5" aria-hidden="true" />
         </span>
-        <h2 className="min-w-0 flex-1 truncate text-xs font-semibold">{embedded ? '作品预览' : '开发浏览器'}</h2>
+        <h2 className="min-w-0 flex-1 truncate text-xs font-semibold">开发浏览器</h2>
         <Button
           type="button"
           variant="ghost"
           size="icon"
           className="h-8 w-8 rounded-md text-muted-foreground"
-          aria-label={embedded ? '收起作品' : '关闭开发浏览器'}
+          aria-label="关闭开发浏览器"
           onClick={() => onOpenChange(false)}
         >
           <X className="h-4 w-4" aria-hidden="true" />
         </Button>
-      </div>
+      </div>}
 
       <form className="flex h-10 shrink-0 items-center gap-1 border-b border-border/70 px-2" onSubmit={handleOpenAddress}>
         <Button type="button" variant="ghost" size="icon" className="h-7 w-7 rounded-md" aria-label="后退" disabled={!snapshot?.canGoBack || busy} onClick={() => handleNavigate('back')}>
diff --git a/tests/e2e/pi-coding-first-chat.spec.ts b/tests/e2e/pi-coding-first-chat.spec.ts
index dea24c87..33f32bbc 100644
--- a/tests/e2e/pi-coding-first-chat.spec.ts
+++ b/tests/e2e/pi-coding-first-chat.spec.ts
@@ -2189,6 +2189,10 @@ test('work tab prepares the page automatically and keeps the student draft throu
   await expect(page.getByText('正在打开你的作品…', { exact: true })).toBeVisible();
   await electronApp.evaluate(() => { (globalThis as unknown as { __makelorePiFirstChatE2E: { workReady: boolean } }).__makelorePiFirstChatE2E.workReady = true; });
   await expect(page.getByRole('textbox', { name: '网页地址' })).toHaveValue('http://127.0.0.1:4173/');
+  await expect(page.getByTestId('agent-browser-panel')).toHaveAccessibleName('作品预览');
+  await expect(page.getByRole('heading', { name: '作品预览', exact: true })).toHaveCount(0);
+  await expect(page.getByRole('button', { name: '收起作品', exact: true })).toHaveCount(0);
+  await expect(page.getByTestId('agent-browser-viewport')).toBeVisible();
   await expect(page.getByText('正在打开你的作品…', { exact: true })).toHaveCount(0);
   // A manual address open must not permanently disable recovery checks.
   await page.getByRole('textbox', { name: '网页地址' }).fill('http://127.0.0.1:4173/');
diff --git a/tests/unit/agent-browser-panel.test.tsx b/tests/unit/agent-browser-panel.test.tsx
index 40ec1a1a..b73aa02e 100644
--- a/tests/unit/agent-browser-panel.test.tsx
+++ b/tests/unit/agent-browser-panel.test.tsx
@@ -264,7 +264,13 @@ describe('AgentBrowserPanel', () => {
     const onOpenChange = vi.fn();
     const view = render(<AgentBrowserPanel projectId="project-a" open embedded onOpenChange={onOpenChange} />);
     await waitFor(() => expect(latestPresentation()).toMatchObject({ project_id: 'project-a', visible: true }));
+    expect(screen.getByRole('complementary', { name: '作品预览' })).toBeVisible();
+    expect(screen.queryByRole('heading', { name: '作品预览' })).not.toBeInTheDocument();
+    expect(screen.queryByRole('button', { name: '收起作品' })).not.toBeInTheDocument();
     expect(screen.getByRole('textbox', { name: '网页地址' })).toHaveValue('http://127.0.0.1:4173/');
+    expect(screen.getByRole('textbox', { name: '网页地址' })).toBeEnabled();
+    expect(screen.getByTestId('agent-browser-viewport')).toBeVisible();
+    expect(screen.getByTestId('agent-browser-viewport')).toHaveAccessibleName('作品画面');
 
     view.rerender(<AgentBrowserPanel projectId="project-a" open={false} embedded onOpenChange={onOpenChange} />);
     await waitFor(() => expect(latestPresentation()).toMatchObject({ visible: false }));