diff --git a/apps/ai-game-creator-shell/src/features/project-workspace/DesignAgentSurface.tsx b/apps/ai-game-creator-shell/src/features/project-workspace/DesignAgentSurface.tsx
index b75c68dd0..2097c5622 100644
--- a/apps/ai-game-creator-shell/src/features/project-workspace/DesignAgentSurface.tsx
+++ b/apps/ai-game-creator-shell/src/features/project-workspace/DesignAgentSurface.tsx
@@ -1,12 +1,11 @@
+import { Check, RotateCcw, X } from 'lucide-react';
 import { useState } from 'react';
 
-import { closeDialogOnEscape } from '../../app/dialogs';
 import type {
   DesignClarificationRequest,
   DesignView,
   DesignWorkspaceEntry,
 } from '../../app/types';
-import { ChatMarkdownMessage } from '../../components/ChatMarkdownMessage';
 
 const PHASE_LABELS: Record<string, string> = {
   concept: '概念设计',
@@ -37,72 +36,71 @@ type DesignAgentSurfaceProps = {
 
 export function DesignAgentSurface({
   view,
-  files,
-  previewPath,
-  previewText,
   busy,
   error,
   onApprove,
   onClarify,
   onRetry,
-  onOpenFile,
-  onClosePreview,
 }: DesignAgentSurfaceProps) {
   const [clarifyText, setClarifyText] = useState('');
   const phase = view?.session.currentPhase ?? 'concept';
   const pending = view?.session.pendingApproval;
   const clarification = view?.session.pendingClarification;
   return (
-    <section
-      className="plan-gdd-surface design-agent-surface"
-      aria-label="策划"
-    >
-      <div className="plan-gdd-stage-progress">
-        <div className="plan-gdd-stage-progress__header">
+    <section className="design-agent-controls" aria-label="策划阶段控制">
+      <div className="design-agent-controls__header">
+        <div>
+          <span>当前阶段</span>
           <strong>{PHASE_LABELS[phase] ?? phase}</strong>
-          {view?.running ? <span>进行中</span> : null}
         </div>
+        {view?.running ? (
+          <span className="design-agent-controls__status">工作中</span>
+        ) : null}
       </div>
-      {error ? (
-        <p className="plan-gdd-stage-progress__delivery-error">{error}</p>
-      ) : null}
+      {error ? <p className="design-agent-controls__error">{error}</p> : null}
       {pending ? (
         <div className="design-agent-approval">
-          <button
-            type="button"
-            disabled={busy}
-            onClick={() => onApprove(pending.requestId, true)}
-            aria-label="批准"
-          >
-            ✅
-          </button>
-          <button
-            type="button"
-            disabled={busy}
-            onClick={() => onApprove(pending.requestId, false)}
-            aria-label="不批准"
-          >
-            ❌
-          </button>
+          <p>当前阶段产物已提交，是否批准进入下一阶段？</p>
+          <div>
+            <button
+              type="button"
+              disabled={busy}
+              onClick={() => onApprove(pending.requestId, true)}
+            >
+              <Check size={15} aria-hidden="true" />
+              批准
+            </button>
+            <button
+              type="button"
+              disabled={busy}
+              onClick={() => onApprove(pending.requestId, false)}
+            >
+              <X size={15} aria-hidden="true" />
+              继续修改
+            </button>
+          </div>
         </div>
       ) : null}
       {clarification ? (
         <div className="design-agent-clarify">
           <p>{clarification.question}</p>
-          {clarification.options.map((option, index) => (
-            <button
-              key={`${clarification.requestId}-${index}`}
-              type="button"
-              disabled={busy}
-              onClick={() => onClarify(clarification, index, clarifyText)}
-            >
-              {option}
-            </button>
-          ))}
+          <div className="design-agent-clarify__options">
+            {clarification.options.map((option, index) => (
+              <button
+                key={`${clarification.requestId}-${index}`}
+                type="button"
+                disabled={busy}
+                onClick={() => onClarify(clarification, index, clarifyText)}
+              >
+                {option}
+              </button>
+            ))}
+          </div>
           <textarea
             rows={2}
             value={clarifyText}
             disabled={busy}
+            placeholder="补充说明（可选）"
             onChange={(event) => setClarifyText(event.currentTarget.value)}
           />
           {clarification.options.length === 0 ? (
@@ -111,57 +109,21 @@ export function DesignAgentSurface({
               disabled={busy || !clarifyText.trim()}
               onClick={() => onClarify(clarification, null, clarifyText)}
             >
-              发送
+              提交回答
             </button>
           ) : null}
         </div>
       ) : null}
       {view?.canRetry ? (
-        <div className="design-agent-approval">
-          <button type="button" disabled={busy} onClick={onRetry}>
-            重试
-          </button>
-        </div>
-      ) : null}
-      <div className="design-agent-files">
-        {files.map((file) =>
-          file.kind === 'directory' ? (
-            <div key={file.path} className="design-agent-file is-dir">
-              {file.path}
-            </div>
-          ) : (
-            <button
-              key={file.path}
-              type="button"
-              className="design-agent-file"
-              onClick={() => onOpenFile(file.path)}
-            >
-              {file.path}
-            </button>
-          ),
-        )}
-      </div>
-      {previewPath ? (
-        <div
-          className="design-agent-preview"
-          role="dialog"
-          aria-label={previewPath}
-          onKeyDown={(event) => closeDialogOnEscape(event, onClosePreview)}
+        <button
+          className="design-agent-retry"
+          type="button"
+          disabled={busy}
+          onClick={onRetry}
         >
-          <header>
-            <strong>{previewPath}</strong>
-            <button type="button" onClick={onClosePreview} aria-label="关闭">
-              ×
-            </button>
-          </header>
-          <div className="design-agent-preview__body">
-            {previewPath.endsWith('.md') ? (
-              <ChatMarkdownMessage role="assistant" text={previewText} />
-            ) : (
-              <pre>{previewText}</pre>
-            )}
-          </div>
-        </div>
+          <RotateCcw size={15} aria-hidden="true" />
+          重试本轮
+        </button>
       ) : null}
     </section>
   );
diff --git a/apps/ai-game-creator-shell/src/features/project-workspace/DesignWorkspacePanel.tsx b/apps/ai-game-creator-shell/src/features/project-workspace/DesignWorkspacePanel.tsx
new file mode 100644
index 000000000..55c470eb9
--- /dev/null
+++ b/apps/ai-game-creator-shell/src/features/project-workspace/DesignWorkspacePanel.tsx
@@ -0,0 +1,284 @@
+import { ArrowLeft, Check, File, Folder, RefreshCw } from 'lucide-react';
+import { useCallback, useEffect, useMemo, useState } from 'react';
+
+import { resolveTauriInvoke } from '../../app/tauri';
+import type { DesignView, DesignWorkspaceEntry } from '../../app/types';
+import { ChatMarkdownMessage } from '../../components/ChatMarkdownMessage';
+
+const PHASES = [
+  ['concept', '概念设计'],
+  ['top_design', '顶层设计'],
+  ['architecture', '系统架构'],
+  ['systems', '系统文档'],
+  ['tdd', '技术文档'],
+] as const;
+
+type DesignWorkspacePanelProps = {
+  projectPath: string;
+};
+
+function phaseLabel(phase: string) {
+  return PHASES.find(([id]) => id === phase)?.[1] ?? phase;
+}
+
+function pathDepth(path: string) {
+  return path.split(/[\\/]/u).filter(Boolean).length - 1;
+}
+
+export function DesignWorkspacePanel({
+  projectPath,
+}: DesignWorkspacePanelProps) {
+  const [view, setView] = useState<DesignView | null>(null);
+  const [files, setFiles] = useState<DesignWorkspaceEntry[]>([]);
+  const [selectedPath, setSelectedPath] = useState<string | null>(null);
+  const [previewText, setPreviewText] = useState('');
+  const [loading, setLoading] = useState(true);
+  const [previewLoading, setPreviewLoading] = useState(false);
+  const [error, setError] = useState('');
+
+  const loadWorkspace = useCallback(async () => {
+    const invoke = resolveTauriInvoke();
+    if (!invoke || !projectPath.trim()) {
+      setLoading(false);
+      return;
+    }
+    setLoading(true);
+    setError('');
+    try {
+      const [nextView, nextFiles] = await Promise.all([
+        invoke<DesignView | null>('hydrate_design_agent_session', {
+          projectPath,
+        }),
+        invoke<DesignWorkspaceEntry[]>('list_design_workspace', {
+          projectPath,
+        }),
+      ]);
+      setView(nextView);
+      setFiles(nextFiles);
+      setSelectedPath((current) =>
+        current &&
+        nextFiles.some(
+          (entry) => entry.kind !== 'directory' && entry.path === current,
+        )
+          ? current
+          : null,
+      );
+    } catch (nextError) {
+      setError(
+        nextError instanceof Error ? nextError.message : String(nextError),
+      );
+      setFiles([]);
+    } finally {
+      setLoading(false);
+    }
+  }, [projectPath]);
+
+  useEffect(() => {
+    void loadWorkspace();
+  }, [loadWorkspace]);
+
+  useEffect(() => {
+    const listen = window.__TAURI__?.event?.listen;
+    if (!listen || !projectPath.trim()) {
+      return;
+    }
+    let disposed = false;
+    let cleanup: (() => void) | null = null;
+    void listen<{ projectPath: string; kind: string }>(
+      'design-agent-update',
+      (event) => {
+        if (!disposed && event.payload.projectPath === projectPath) {
+          void loadWorkspace();
+        }
+      },
+    )
+      .then((unlisten) => {
+        if (disposed) {
+          unlisten();
+        } else {
+          cleanup = unlisten;
+        }
+      })
+      .catch(() => undefined);
+    return () => {
+      disposed = true;
+      cleanup?.();
+    };
+  }, [loadWorkspace, projectPath]);
+
+  const sortedFiles = useMemo(
+    () =>
+      [...files].sort((left, right) => {
+        if (left.kind !== right.kind) {
+          return left.kind === 'directory' ? -1 : 1;
+        }
+        return left.path.localeCompare(right.path, 'zh-CN');
+      }),
+    [files],
+  );
+
+  const openFile = useCallback(
+    async (path: string) => {
+      const invoke = resolveTauriInvoke();
+      if (!invoke) {
+        return;
+      }
+      setSelectedPath(path);
+      setPreviewLoading(true);
+      setError('');
+      try {
+        const content = await invoke<string>('read_design_workspace_file', {
+          projectPath,
+          path,
+        });
+        setPreviewText(content);
+      } catch (nextError) {
+        setPreviewText('');
+        setError(
+          nextError instanceof Error ? nextError.message : String(nextError),
+        );
+      } finally {
+        setPreviewLoading(false);
+      }
+    },
+    [projectPath],
+  );
+
+  const currentPhase = view?.session.currentPhase ?? 'concept';
+  const currentPhaseIndex = Math.max(
+    0,
+    PHASES.findIndex(([id]) => id === currentPhase),
+  );
+  const selectedEntry = selectedPath
+    ? files.find((entry) => entry.path === selectedPath)
+    : null;
+
+  return (
+    <section className="design-workspace-panel" aria-label="策划工作区">
+      <header className="design-workspace-panel__header">
+        <div>
+          <span className="design-workspace-panel__eyebrow">策划工作区</span>
+          <h1>{phaseLabel(currentPhase)}</h1>
+          <p>Agent 产生的策划文档会显示在这里。</p>
+        </div>
+        <button
+          type="button"
+          className="design-workspace-panel__refresh"
+          onClick={() => void loadWorkspace()}
+          disabled={loading}
+          aria-label="刷新策划工作区"
+        >
+          <RefreshCw size={15} aria-hidden="true" />
+          刷新
+        </button>
+      </header>
+
+      <nav className="design-phase-rail" aria-label="策划阶段">
+        {PHASES.map(([id, label], index) => (
+          <div
+            key={id}
+            className={`design-phase-rail__item${
+              index < currentPhaseIndex ? ' is-complete' : ''
+            }${index === currentPhaseIndex ? ' is-current' : ''}`}
+          >
+            <span className="design-phase-rail__marker">
+              {index < currentPhaseIndex ? (
+                <Check size={12} aria-hidden="true" />
+              ) : (
+                index + 1
+              )}
+            </span>
+            <span>{label}</span>
+          </div>
+        ))}
+      </nav>
+
+      {error ? (
+        <p className="design-workspace-panel__error" role="alert">
+          {error}
+        </p>
+      ) : null}
+
+      <div className="design-workspace-panel__body">
+        <aside className="design-workspace-tree" aria-label="策划文件">
+          <header>
+            <strong>工作区文件</strong>
+            <span>
+              {files.filter((entry) => entry.kind !== 'directory').length}{' '}
+              个文件
+            </span>
+          </header>
+          {loading ? (
+            <p className="design-workspace-empty">正在读取工作区…</p>
+          ) : sortedFiles.length === 0 ? (
+            <div className="design-workspace-empty">
+              <Folder size={24} aria-hidden="true" />
+              <strong>工作区还没有文件</strong>
+              <span>开始对话后，Agent 创建的文档会出现在这里。</span>
+            </div>
+          ) : (
+            <div className="design-workspace-tree__list">
+              {sortedFiles.map((entry) => {
+                const isDirectory = entry.kind === 'directory';
+                return isDirectory ? (
+                  <div
+                    key={entry.path}
+                    className="design-workspace-tree__entry is-directory"
+                    style={{
+                      paddingLeft: `${12 + pathDepth(entry.path) * 12}px`,
+                    }}
+                  >
+                    <Folder size={15} aria-hidden="true" />
+                    <span>{entry.path}</span>
+                  </div>
+                ) : (
+                  <button
+                    key={entry.path}
+                    type="button"
+                    className={`design-workspace-tree__entry${selectedPath === entry.path ? ' is-selected' : ''}`}
+                    style={{
+                      paddingLeft: `${12 + pathDepth(entry.path) * 12}px`,
+                    }}
+                    onClick={() => void openFile(entry.path)}
+                  >
+                    <File size={15} aria-hidden="true" />
+                    <span>{entry.path}</span>
+                  </button>
+                );
+              })}
+            </div>
+          )}
+        </aside>
+
+        <article className="design-workspace-preview" aria-label="策划文件预览">
+          {selectedEntry && selectedPath ? (
+            <>
+              <header>
+                <button type="button" onClick={() => setSelectedPath(null)}>
+                  <ArrowLeft size={15} aria-hidden="true" />
+                  文件列表
+                </button>
+                <strong>{selectedPath}</strong>
+              </header>
+              {previewLoading ? (
+                <p className="design-workspace-empty">正在读取文件…</p>
+              ) : selectedPath.toLowerCase().endsWith('.md') ? (
+                <div className="design-workspace-preview__markdown">
+                  <ChatMarkdownMessage role="assistant" text={previewText} />
+                </div>
+              ) : (
+                <pre>{previewText}</pre>
+              )}
+            </>
+          ) : (
+            <div className="design-workspace-preview__placeholder">
+              <File size={28} aria-hidden="true" />
+              <strong>选择一个文件查看内容</strong>
+              <span>文档会在这里按普通 Markdown 方式预览。</span>
+            </div>
+          )}
+        </article>
+      </div>
+    </section>
+  );
+}
diff --git a/apps/ai-game-creator-shell/src/features/project-workspace/ProjectSupervisorView.tsx b/apps/ai-game-creator-shell/src/features/project-workspace/ProjectSupervisorView.tsx
index 509a60946..9e35c088b 100644
--- a/apps/ai-game-creator-shell/src/features/project-workspace/ProjectSupervisorView.tsx
+++ b/apps/ai-game-creator-shell/src/features/project-workspace/ProjectSupervisorView.tsx
@@ -401,7 +401,8 @@ export function ProjectSupervisorView({
               runtimePanelProps.controlBusy ||
               needsUserInput ||
               modelValidating ||
-              Boolean(designView?.session.pendingApproval)
+              Boolean(designView?.session.pendingApproval) ||
+              Boolean(designView?.session.pendingClarification)
             }
             rows={3}
             value={chatInput}
@@ -440,6 +441,7 @@ export function ProjectSupervisorView({
               runtimePanelProps.controlBusy ||
               needsUserInput ||
               Boolean(designView?.session.pendingApproval) ||
+              Boolean(designView?.session.pendingClarification) ||
               (directCodex && (!modelReady || modelValidating))
             }
           >
diff --git a/apps/ai-game-creator-shell/src/styles.css b/apps/ai-game-creator-shell/src/styles.css
index 31d1b3d13..f97b43b17 100644
--- a/apps/ai-game-creator-shell/src/styles.css
+++ b/apps/ai-game-creator-shell/src/styles.css
@@ -8171,6 +8171,387 @@ iframe.preview-frame {
   padding: 12px;
 }
 
+/* 策划 Agent 使用 GameAgent 工作台的两栏外壳。左侧工作区即使为空也保持可见，
+   右侧只承载对话与阶段控制。 */
+.game-project-workbench--design {
+  --game-workbench-stage-fill: #fffdfa;
+  --game-workbench-agent-fill: #fbf7f2;
+}
+
+.game-workbench-layout--design {
+  height: clamp(600px, calc(100dvh - 154px), 900px);
+  grid-template-columns: minmax(0, 1fr) minmax(380px, 0.42fr);
+}
+
+.game-workbench-layout--design .game-workbench-stage {
+  display: block;
+  min-height: 0;
+  overflow: hidden;
+}
+
+.game-workbench-layout--design .game-workbench-chat {
+  min-height: 0;
+}
+
+.design-workspace-panel {
+  display: grid;
+  grid-template-rows: auto auto minmax(0, 1fr);
+  height: 100%;
+  min-height: 0;
+  padding: 22px;
+  overflow: hidden;
+  background: var(--game-workbench-stage-fill);
+}
+
+.design-workspace-panel__header {
+  display: flex;
+  align-items: flex-start;
+  justify-content: space-between;
+  gap: 16px;
+  padding-bottom: 18px;
+}
+
+.design-workspace-panel__eyebrow {
+  display: block;
+  margin-bottom: 6px;
+  color: var(--platform-text-soft);
+  font-size: 12px;
+  letter-spacing: 0.08em;
+}
+
+.design-workspace-panel__header h1 {
+  margin: 0;
+  color: var(--platform-text-strong);
+  font-size: clamp(22px, 2.4vw, 32px);
+  line-height: 1.15;
+}
+
+.design-workspace-panel__header p {
+  margin-top: 8px;
+  color: var(--platform-text-base);
+  font-size: 13px;
+}
+
+.design-workspace-panel__refresh,
+.design-workspace-preview header button {
+  display: inline-flex;
+  align-items: center;
+  gap: 6px;
+  min-height: 34px;
+  padding: 0 11px;
+  border: 1px solid var(--platform-surface-border);
+  border-radius: 8px;
+  background: var(--platform-button-secondary-fill);
+  color: var(--platform-button-secondary-text);
+  cursor: pointer;
+}
+
+.design-workspace-panel__refresh:disabled {
+  cursor: wait;
+  opacity: 0.6;
+}
+
+.design-phase-rail {
+  display: flex;
+  gap: 6px;
+  padding: 12px 0 18px;
+  overflow-x: auto;
+  scrollbar-width: thin;
+}
+
+.design-phase-rail__item {
+  display: inline-flex;
+  align-items: center;
+  gap: 7px;
+  flex: 0 0 auto;
+  min-height: 30px;
+  padding: 0 10px;
+  border: 1px solid var(--platform-line-soft);
+  border-radius: 999px;
+  color: var(--platform-text-soft);
+  font-size: 12px;
+}
+
+.design-phase-rail__item.is-current {
+  border-color: var(--platform-button-primary-border);
+  background: var(--platform-warm-bg);
+  color: var(--platform-text-strong);
+  font-weight: 700;
+}
+
+.design-phase-rail__item.is-complete {
+  color: var(--platform-text-base);
+}
+
+.design-phase-rail__marker {
+  display: inline-grid;
+  width: 18px;
+  height: 18px;
+  place-items: center;
+  border-radius: 50%;
+  background: var(--platform-line-soft);
+  font-size: 10px;
+}
+
+.design-phase-rail__item.is-current .design-phase-rail__marker,
+.design-phase-rail__item.is-complete .design-phase-rail__marker {
+  background: var(--platform-button-primary-fill);
+  color: var(--platform-button-primary-text);
+}
+
+.design-workspace-panel__error,
+.design-agent-controls__error {
+  margin: 0 0 10px;
+  color: var(--platform-danger-text, #b42318);
+  font-size: 12px;
+  overflow-wrap: anywhere;
+}
+
+.design-workspace-panel__body {
+  display: grid;
+  grid-template-columns: minmax(220px, 0.34fr) minmax(0, 1fr);
+  min-height: 0;
+  overflow: hidden;
+  border: 1px solid var(--platform-line-soft);
+  border-radius: 12px;
+  background: var(--platform-input-fill);
+}
+
+.design-workspace-tree {
+  min-width: 0;
+  overflow: auto;
+  border-right: 1px solid var(--platform-line-soft);
+}
+
+.design-workspace-tree > header {
+  display: flex;
+  align-items: center;
+  justify-content: space-between;
+  gap: 8px;
+  padding: 12px 14px;
+  border-bottom: 1px solid var(--platform-line-soft);
+  background: var(--platform-neutral-bg);
+}
+
+.design-workspace-tree > header strong {
+  color: var(--platform-text-strong);
+  font-size: 13px;
+}
+
+.design-workspace-tree > header span {
+  color: var(--platform-text-soft);
+  font-size: 11px;
+}
+
+.design-workspace-tree__list {
+  display: grid;
+  gap: 2px;
+  padding: 8px;
+}
+
+.design-workspace-tree__entry {
+  display: flex;
+  align-items: center;
+  gap: 8px;
+  width: 100%;
+  min-height: 34px;
+  padding-top: 0;
+  padding-bottom: 0;
+  border: 0;
+  border-radius: 7px;
+  background: transparent;
+  color: var(--platform-text-base);
+  font: inherit;
+  font-size: 12px;
+  text-align: left;
+  overflow: hidden;
+}
+
+.design-workspace-tree__entry span {
+  min-width: 0;
+  overflow: hidden;
+  text-overflow: ellipsis;
+  white-space: nowrap;
+}
+
+button.design-workspace-tree__entry {
+  cursor: pointer;
+}
+
+button.design-workspace-tree__entry:hover,
+.design-workspace-tree__entry.is-selected {
+  background: var(--platform-warm-bg);
+  color: var(--platform-text-strong);
+}
+
+.design-workspace-tree__entry.is-directory {
+  color: var(--platform-text-soft);
+}
+
+.design-workspace-empty,
+.design-workspace-preview__placeholder {
+  display: grid;
+  place-items: center;
+  gap: 8px;
+  min-height: 150px;
+  padding: 24px;
+  color: var(--platform-text-soft);
+  font-size: 12px;
+  text-align: center;
+}
+
+.design-workspace-empty strong,
+.design-workspace-preview__placeholder strong {
+  color: var(--platform-text-strong);
+  font-size: 14px;
+}
+
+.design-workspace-preview {
+  display: grid;
+  grid-template-rows: auto minmax(0, 1fr);
+  min-width: 0;
+  min-height: 0;
+  overflow: hidden;
+  background: var(--platform-neutral-bg);
+}
+
+.design-workspace-preview > header {
+  display: flex;
+  align-items: center;
+  gap: 12px;
+  min-width: 0;
+  padding: 10px 14px;
+  border-bottom: 1px solid var(--platform-line-soft);
+}
+
+.design-workspace-preview > header strong {
+  min-width: 0;
+  overflow: hidden;
+  color: var(--platform-text-strong);
+  font-size: 12px;
+  text-overflow: ellipsis;
+  white-space: nowrap;
+}
+
+.design-workspace-preview__markdown,
+.design-workspace-preview > pre {
+  min-height: 0;
+  margin: 0;
+  padding: 18px;
+  overflow: auto;
+  color: var(--platform-text-base);
+  font-size: 13px;
+  line-height: 1.65;
+  white-space: pre-wrap;
+  overflow-wrap: anywhere;
+}
+
+.design-agent-controls {
+  display: grid;
+  gap: 10px;
+  padding: 12px 14px;
+  border: 1px solid var(--platform-line-soft);
+  border-radius: 10px;
+  background: var(--platform-neutral-bg);
+}
+
+.design-agent-controls__header {
+  display: flex;
+  align-items: center;
+  justify-content: space-between;
+  gap: 10px;
+}
+
+.design-agent-controls__header div {
+  display: grid;
+  gap: 3px;
+}
+
+.design-agent-controls__header span:first-child {
+  color: var(--platform-text-soft);
+  font-size: 11px;
+}
+
+.design-agent-controls__header strong {
+  color: var(--platform-text-strong);
+  font-size: 14px;
+}
+
+.design-agent-controls__status {
+  color: var(--platform-accent);
+  font-size: 11px;
+}
+
+.design-agent-approval,
+.design-agent-clarify {
+  display: grid;
+  gap: 9px;
+  padding: 0;
+}
+
+.design-agent-approval p,
+.design-agent-clarify p {
+  margin: 0;
+  color: var(--platform-text-base);
+  font-size: 12px;
+  line-height: 1.5;
+}
+
+.design-agent-approval > div,
+.design-agent-clarify__options {
+  display: flex;
+  flex-wrap: wrap;
+  gap: 8px;
+}
+
+.design-agent-approval button,
+.design-agent-clarify button,
+.design-agent-retry {
+  display: inline-flex;
+  align-items: center;
+  justify-content: center;
+  gap: 6px;
+  min-height: 34px;
+  padding: 0 11px;
+  border: 1px solid var(--platform-surface-border);
+  border-radius: 8px;
+  background: var(--platform-button-secondary-fill);
+  color: var(--platform-button-secondary-text);
+  font: inherit;
+  font-size: 12px;
+  cursor: pointer;
+}
+
+.design-agent-approval button:first-child {
+  border-color: var(--platform-button-primary-border);
+  background: var(--platform-button-primary-fill);
+  color: var(--platform-button-primary-text);
+}
+
+.design-agent-approval button:disabled,
+.design-agent-clarify button:disabled,
+.design-agent-retry:disabled {
+  cursor: wait;
+  opacity: 0.58;
+}
+
+.design-agent-clarify textarea {
+  width: 100%;
+  min-height: 58px;
+  padding: 9px 10px;
+  resize: vertical;
+  border: 1px solid var(--platform-surface-border);
+  border-radius: 8px;
+  background: var(--platform-input-fill);
+  color: var(--platform-text-base);
+  font: inherit;
+  font-size: 12px;
+}
+
+.design-agent-retry {
+  justify-self: start;
+}
+
 .gdd-approval-card__header {
   display: grid;
   gap: 5px;
diff --git a/apps/ai-game-creator-shell/src/view/project-development/index.tsx b/apps/ai-game-creator-shell/src/view/project-development/index.tsx
index 6735ec1b4..416491165 100644
--- a/apps/ai-game-creator-shell/src/view/project-development/index.tsx
+++ b/apps/ai-game-creator-shell/src/view/project-development/index.tsx
@@ -60,6 +60,7 @@ import {
   type LocalAssetCommittedEvent,
   type TauriImageCanvasHostAdapter,
 } from '../../features/asset-canvas/tauriImageCanvasHostAdapter';
+import { DesignWorkspacePanel } from '../../features/project-workspace/DesignWorkspacePanel';
 import {
   LocalGamePreviewFrame,
   resolveEmbeddedPreviewUrl,
@@ -4209,6 +4210,33 @@ export default function ProjectDevelopmentView({
     !resourceEditorRoute &&
     !uiEditorRoute;
 
+  if (planningStartMode) {
+    return (
+      <section
+        className="launcher-page launcher-project-development game-project-workbench game-project-workbench--design"
+        aria-label="策划工作台"
+      >
+        <div className="game-workbench-layout game-workbench-layout--design">
+          <section className="game-workbench-stage" aria-label="策划工作区">
+            <DesignWorkspacePanel projectPath={projectPath} />
+          </section>
+          <aside className="game-workbench-chat" aria-label="策划 Agent 对话">
+            <header>
+              <div className="game-workbench-chat-title">
+                <strong>与策划 Agent 对话</strong>
+                <small>持续协作推进设计</small>
+              </div>
+              {walletEntry ? (
+                <div className="game-workbench-chat-wallet">{walletEntry}</div>
+              ) : null}
+            </header>
+            {supervisor}
+          </aside>
+        </div>
+      </section>
+    );
+  }
+
   return (
     <section
       className="launcher-page launcher-project-development game-project-workbench"