【需求 20331】 styles: 页面加入返回按钮

src/views/auction/index.vue

@@ -198,9 +198,9 @@ const onBid = async (item: AuctionItemDto) => {
 }
 </script>
 <template>
-  <div class="relative">
+  <div class="xl:px-20">
+    <div class="flex gap-3 relative">
       <BackButton />
-    <div class="flex gap-3">
       <div class="flex-3/4 min-w-0">
         <div class="bg-white/90 rounded-2xl p-6 shadow-lg border border-white/60">
           <div class="flex items-center gap-3 mb-6">

src/views/pointsStore/index.vue

 <template>
-  <div class="relative">
+  <div class="xl:px-20">
+    <div class="flex gap-3 relative">
       <BackButton />
-    <div class="flex gap-3">
       <!-- 左侧：商品列表区域 -->
       <div class="flex-3/4 min-w-0">
         <!-- 虚拟装饰区域 -->