更新输入框边距规范，增加资源对接弹窗的布局修正，确保在小程序开发中避免文字贴边问题。补充相关口诀以提升开发一致性，并在经验清单中记录最新最佳实践。调整项目索引以反映最新进展，增强文档的可用性与可追溯性。

miniprogram/pages/my/my.wxml

@@ -186,6 +186,17 @@
     </view>
   </view>
 
+  <!-- 头像弹窗：必须点击 button 才能获取微信头像（隐私规范） -->
+  <view class="modal-overlay" wx:if="{{showAvatarModal}}" bindtap="closeAvatarModal">
+    <view class="modal-content avatar-modal" catchtap="stopPropagation">
+      <view class="modal-close" bindtap="closeAvatarModal">✕</view>
+      <text class="avatar-modal-title">获取微信头像</text>
+      <text class="avatar-modal-desc">点击下方按钮使用你的微信头像</text>
+      <button class="btn-choose-avatar" open-type="chooseAvatar" bindchooseavatar="onChooseAvatar">使用微信头像</button>
+      <view class="avatar-modal-cancel" bindtap="closeAvatarModal">取消</view>
+    </view>
+  </view>
+
   <!-- 修改昵称弹窗 -->
   <view class="modal-overlay" wx:if="{{showNicknameModal}}" bindtap="closeNicknameModal">
     <view class="modal-content nickname-modal" catchtap="stopPropagation">