style(profile): 移除多余的flex布局类并简化列表区域样式

 <template>
-  <div class="points-page min-h-screen bg-gray-50 flex flex-col">
+  <div class="points-page min-h-screen bg-gray-50">
     <!-- 头部区域 -->
     <div class="header relative w-full h-48 bg-cover bg-center" :style="{ backgroundImage: `url(${headerBg})` }">
       <div class="absolute top-12 left-6">
@@ -73,7 +73,7 @@
     </div>
 
     <!-- 列表区域 -->
-    <div class="flex-1 overflow-y-auto p-3">
+    <div class="p-3">
       <van-pull-refresh v-model="refreshing" @refresh="onRefresh">
         <van-list v-model:loading="loading" :finished="finished" finished-text="没有更多了" @load="onLoad">
           <div v-for="item in list" :key="item.id" class="bg-white rounded-xl p-4 mb-3 shadow-sm">