diff --git a/apps/design-lab/src/lib/ui.tsx b/apps/design-lab/src/lib/ui.tsx
index 865161b..bc5c1dc 100644
--- a/apps/design-lab/src/lib/ui.tsx
+++ b/apps/design-lab/src/lib/ui.tsx
@@ -1,4 +1,5 @@
 /** 页面公共骨架 */
+import '@stack/design-system'
 import type { ReactNode } from 'react'
 
 export function Page({ tag, title, desc, children }: { tag: string; title: string; desc: string; children: ReactNode }) {
diff --git a/apps/tutorial/src/lib/ui.tsx b/apps/tutorial/src/lib/ui.tsx
index 36e80c8..9b983c3 100644
--- a/apps/tutorial/src/lib/ui.tsx
+++ b/apps/tutorial/src/lib/ui.tsx
@@ -1,5 +1,6 @@
 /** 教程站页面骨架：站头导航跨页常驻（view-transition-name 共享元素，页间不闪烁）。
  * 选中项背景色＝该章色（与章头 title 横幅统一）；书架/设计册选中为 ink。 */
+import '@stack/design-system'
 import type { ReactNode } from 'react'
 import type { ChapterId } from '@stack/design-system'
 import { CHAPTERS } from './chapters'