diff --git a/.vitepress/config.mts b/.vitepress/config.mts
index c8afacf..8adb132 100644
--- a/.vitepress/config.mts
+++ b/.vitepress/config.mts
@@ -19,7 +19,7 @@ export default defineConfig({
             { text: '概述', link: '/docs/engine/' },
             { 
               text: '安装', 
-              collapsed: false,
+              collapsed: true,
               link: '/docs/engine/about',
               items: [
                 { text: "Ubuntu", link: '/docs/engine/ubuntu' },