feat: 构建文档基础框架

docs/.vitepress/theme/custom.css

@@ -0,0 +1,3 @@
+:root {
+  --vp-sidebar-width: 320px;
+}

docs/.vitepress/theme/index.ts

@@ -3,6 +3,7 @@ import { h } from 'vue'
 import type { Theme } from 'vitepress'
 import DefaultTheme from 'vitepress/theme'
 import './style.css'
+import './custom.css'
 
 export default {
   extends: DefaultTheme,