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 da1e22671..9a84c336a 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
@@ -6263,6 +6263,17 @@ export default function ProjectDevelopmentView({
                   overlay={
                     resourceBookView === 'main' ? null : (
                       <div className="game-resource-canvas-toolbar-host">
+                        {/*
+                          展开态的空态：复用栏目页同一个类与同一句文案（不新增样式）。
+                          `.game-resource-page-empty` 是 `absolute + inset: 0 + place-items: center`，
+                          而这条 host 自身不定位，所以它会按场景根居中，和栏目页那条判定同一观感。
+                        */}
+                        {resourceBookOpensAllResources &&
+                        visibleResources.length === 0 ? (
+                          <p className="game-resource-page-empty">
+                            没有匹配资源
+                          </p>
+                        ) : null}
                         {selectedResourceLayer &&
                         selectedToolbarStyle &&
                         ((selectedToolbarActions?.size ?? 0) > 0 ||
diff --git a/apps/ai-game-creator-shell/tests/appSurface/project-development.suite.ts b/apps/ai-game-creator-shell/tests/appSurface/project-development.suite.ts
index 671d174e9..9a30e2d27 100644
--- a/apps/ai-game-creator-shell/tests/appSurface/project-development.suite.ts
+++ b/apps/ai-game-creator-shell/tests/appSurface/project-development.suite.ts
@@ -9771,6 +9771,23 @@ export function registerProjectAgentStatusTests() {
         '.game-resource-book-scene-titlebar[data-resource-book-category="all"] .game-resource-book-titlebar-meta small',
       )?.textContent,
     ).toBe('0 项');
+
+    // 空项目进展开态也不破版：一张卡都不挂，空态复用栏目页同一个类与同一句文案
+    // （「不新增样式」这条红线的可执行判据）。
+    fireEvent.click(screen.getByRole('button', { name: '打开所有资源' }));
+    await waitFor(() =>
+      expect(
+        document.querySelector(
+          '.game-resource-book-scene-titlebar.is-active[data-resource-book-category="all"]',
+        ),
+      ).not.toBeNull(),
+    );
+    expect(
+      document.querySelectorAll('.game-resource-book-scene-card'),
+    ).toHaveLength(0);
+    expect(
+      document.querySelector('.game-resource-page-empty')?.textContent,
+    ).toBe('没有匹配资源');
   });
 
   /**