diff --git a/biji-qianduan/src/components/HomePage.vue b/biji-qianduan/src/components/HomePage.vue
index 6a4fbbb..569bc18 100644
--- a/biji-qianduan/src/components/HomePage.vue
+++ b/biji-qianduan/src/components/HomePage.vue
@@ -448,7 +448,10 @@ const renderMenu = (item) => {
   });
 
   if (item.children && item.children.length > 0) {
-    return h(ElSubMenu, { index: `group-${item.id}` }, {
+    return h(ElSubMenu, {
+      index: `group-${item.id}`,
+      popperClass: isCollapsed.value ? 'hide-popper' : ''
+    }, {
       title: () => h('div', { onClick: () => selectFile(item), style: 'width: 100%;' }, [ wrappedContent() ]),
       default: () => item.children.map(child => renderMenu(child))
     });
@@ -837,6 +840,10 @@ watch(activeMenu, (newVal) => {
   background-color: var(--primary-color-light) !important;
 }
 
+.hide-popper {
+  display: none !important;
+}
+
 /* 移除预览中代码块的内部滚动条 */
 .markdown-preview .vditor-reset pre {
   max-height: none !important;