fix: 界面功能优化，完成基础信息和心路历程优化。

src/pages/mine.vue

@@ -58,7 +58,10 @@
       </view>
 
       <view class="menu-section">
-        <view class="section-title">账户管理</view>
+        <view class="section-title">
+          <view class="title-bar"></view>
+          <text class="title-text">账户管理</text>
+        </view>
         <view class="menu-card">
           <view class="menu-item" @click="handleToEditInfo">
             <view class="item-left">
@@ -83,7 +86,10 @@
       </view>
 
       <view class="menu-section">
-        <view class="section-title">帮助与支持</view>
+        <view class="section-title">
+          <view class="title-bar"></view>
+          <text class="title-text">帮助与支持</text>
+        </view>
         <view class="menu-card">
           <view class="menu-item" @click="handleHelp">
             <view class="item-left">
@@ -408,8 +414,7 @@ page {
         display: flex;
         align-items: center;
         
-        &::before {
-          content: '';
+        .title-bar {
           width: 6rpx;
           height: 28rpx;
           background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
@@ -417,6 +422,12 @@ page {
           margin-right: 12rpx;
           flex-shrink: 0;
         }
+        
+        .title-text {
+          color: #7f8c8d;
+          font-size: 28rpx;
+          font-weight: 600;
+        }
       }
       
       .menu-card {