fix: avatar page

pages/mine/help.vue

@@ -230,28 +230,26 @@ const toggleQuestion = (catIndex, itemIndex) => {
   z-index: 100;
   display: flex;
   align-items: center;
-  justify-content: center;
+  padding: 0 24rpx;
   background: #fff;
 }
 
 .nav-left {
-  position: absolute;
-  left: 20rpx;
-  bottom: 0;
-  height: 44px;
   display: flex;
   align-items: center;
-  padding: 0 10rpx;
+  margin-right: 24rpx;
+  /* 增大点击区域 */
+  padding: 20rpx;
+  margin-left: -20rpx;
 }
 
 .nav-title {
   font-size: 32rpx;
   font-weight: bold;
   color: #000;
-  position: absolute;
-  bottom: 0;
-  height: 44px;
-  line-height: 44px;
+  flex: 1;
+  text-align: center;
+  margin-right: 50rpx; /* Balance back button */
 }
 
 .search-box {