style: 会员标签显示在user-name-row右上角

- user-name-row保持水平居中
- vip-tag使用position: absolute定位到右上角（top: 0, right: 0）

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

@@ -7,10 +7,10 @@
       <view class="user-info">
         <view class="user-name-row">
           <text class="username">玄机用户</text>
-          <view class="vip-tag" :class="vipClass">
+        </view>
+        <view class="vip-tag" :class="vipClass">
             <text class="vip-tag-text">{{ vipText }}</text>
           </view>
-        </view>
         <text class="user-coins">金币：{{ coins }}</text>
       </view>
     </view>
@@ -167,6 +167,7 @@ page {
   align-items: flex-start;
   justify-content: center;
   margin-bottom: 8rpx;
+  position: relative;
 }
 
 .username {
@@ -177,6 +178,9 @@ page {
 }
 
 .vip-tag {
+  position: absolute;
+  top: 0;
+  right: 0;
   margin-left: 6rpx;
   padding: 1rpx 8rpx;
   border-radius: 12rpx;
@@ -204,7 +208,7 @@ page {
 }
 
 .vip-tag-text {
-  font-size: 16rpx;
+  font-size: 18rpx;
   font-weight: 500;
   color: #ffffff;
 }