diff --git a/src/components/sort-college/CollegeItem.vue b/src/components/sort-college/CollegeItem.vue
index 4ac2105..86dfdfd 100644
--- a/src/components/sort-college/CollegeItem.vue
+++ b/src/components/sort-college/CollegeItem.vue
@@ -44,8 +44,8 @@
         </div>
       </div>
       <div class="h-[2rpx] bg-[#EDEDED] w-full"></div>
-      <div class="transition-all duration-300 w-full" :style="{ height: isCollapsed ? 'max-content' : '0' }" v-if="isCollapsed">
-        <virtual-list v-model="college.vItems" data-key="sort" lock-axis="x" handle=".handle-major" chosen-class="choose-item">
+      <div :class="`transition-all duration-300 w-full ${isCollapsed ? 'max-h-[600rpx] overflow-y-auto':''}`" v-if="isCollapsed">
+        <virtual-list v-model="college.vItems" data-key="major" lock-axis="x" handle=".handle-major" chosen-class="choose-item" :keeps="10" class="max-h-[600rpx]">
           <template v-slot:item="{ record, index }">
             <MajorItem :collegeIndex="collegeIndex" :major="record" :major-index="index" :score="score" :year="2024" v-bind="$attrs" />
           </template>