refactor(biji-qianduan): 优化侧边栏宽度和响应式布局

biji-qianduan/src/components/HomePage.vue

@@ -1,7 +1,7 @@
 <template>
   <el-container class="home-page" :class="{'is-mobile': isMobile}">
     <!-- 左侧菜单区域 -->
-    <el-aside class="sidebar" :class="{'is-collapsed': isCollapsed}">
+    <el-aside class="sidebar" :width="isMobile ? '0' : (isCollapsed ? '64px' : '250px')">
       <div class="sidebar-header">
         <span v-if="!isCollapsed" style="margin-right: 15px; font-weight: bold;">笔记分类</span>
         <el-button v-if="!isCollapsed" type="primary" size="small" @click="showCreateGroupDialog = true" circle>
@@ -1331,9 +1331,6 @@ const resetUpdatePasswordForm = () => {
   overflow-x: hidden;
 }
 
-.el-menu-vertical-demo:not(.el-menu--collapse) {
-  width: 250px;
-}
 
 :deep(.el-menu-item), :deep(.el-sub-menu__title) {
   height: 48px;