fix: 修复VIP标签显示问题

- 调整VIP标签布局方式，从绝对定位改为flex布局
- 修复VIP标签不显示的问题
- 优化用户名和VIP标签的间距

xuan-deduct-uniapp/src/pages/mine/mine.vue

@@ -163,8 +163,8 @@ page {
 }
 
 .user-name-row {
-  display: inline-flex;
-  align-items: flex-start;
+  display: flex;
+  align-items: center;
   justify-content: center;
   margin-bottom: 8rpx;
   position: relative;
@@ -175,16 +175,14 @@ page {
   font-weight: 700;
   color: #ffffff;
   line-height: 1.2;
+  margin-right: 12rpx;
 }
 
 .vip-tag {
-  position: absolute;
-  top: 0;
-  right: 0;
-  margin-left: 6rpx;
-  padding: 1rpx 8rpx;
-  border-radius: 12rpx;
+  padding: 4rpx 16rpx;
+  border-radius: 16rpx;
   line-height: 1.2;
+  display: inline-block;
 }
 
 .vip-tag.normal {