重构小程序图标组件，替换传统 emoji 为 SVG 图标，提升视觉一致性和可维护性。更新多个页面以使用新图标组件，优化用户界面体验。同时，调整了数据加载逻辑，确保更高效的状态管理和用户交互。

miniprogram/pages/my/my.wxml

@@ -178,7 +178,7 @@
   <view class="modal-overlay" wx:if="{{showLoginModal}}" bindtap="closeLoginModal">
     <view class="modal-content login-modal-content" catchtap="stopPropagation">
       <view class="modal-close" bindtap="closeLoginModal">✕</view>
-      <view class="login-icon">🔐</view>
+      <view class="login-icon"><icon name="lock" size="80" color="#00CED1"></icon></view>
       <text class="login-title">登录 Soul创业派对</text>
       <text class="login-desc">登录后可购买章节、解锁更多内容</text>
       <button class="btn-wechat {{agreeProtocol ? '' : 'btn-wechat-disabled'}}" bindtap="handleWechatLogin" disabled="{{isLoggingIn || !agreeProtocol}}">
@@ -204,14 +204,14 @@
       <view class="form-input-wrap">
         <text class="form-label">手机号</text>
         <view class="form-input-inner">
-          <text class="form-icon">📱</text>
+          <icon name="smartphone" size="36" color="#8e8e93" customClass="form-icon"></icon>
           <input class="form-input" type="tel" placeholder="请输入您的手机号" value="{{contactPhone}}" bindinput="onContactPhoneInput"/>
         </view>
       </view>
       <view class="form-input-wrap">
         <text class="form-label">微信号</text>
         <view class="form-input-inner">
-          <text class="form-icon">💬</text>
+          <icon name="message-circle" size="36" color="#8e8e93" customClass="form-icon"></icon>
           <input class="form-input" type="text" placeholder="请输入您的微信号" value="{{contactWechat}}" bindinput="onContactWechatInput"/>
         </view>
       </view>