fix: 更新默认头像链接并优化图片容器样式

- 将多处默认头像链接统一更新为新的CDN地址
- 修改车辆图片容器使用aspect-ratio替代固定高度
- 为订单详情页关闭按钮添加橙色主题色
- 在个人资料和商品详情页添加默认头像回退逻辑

@@ -183,7 +183,7 @@ const themeVars = {
 }
 
 // 默认头像
-const defaultAvatar = 'https://randomuser.me/api/portraits/men/32.jpg'
+const defaultAvatar = 'https://cdn.ipadbiz.cn/mlaj/images/icon_1.jpeg'
 
 // 表单数据
 const formData = reactive({

@@ -93,7 +93,7 @@
 /* 车辆图片 */
 .car-image-container {
   width: 100%;
-  height: 300rpx;
+  aspect-ratio: 1;
   border-radius: 24rpx;
   overflow: hidden;
 }

 <!--
  * @Date: 2022-09-19 14:11:06
  * @LastEditors: hookehuyr hookehuyr@gmail.com
- * @LastEditTime: 2025-07-04 14:34:39
+ * @LastEditTime: 2025-07-04 17:00:42
  * @FilePath: /jgdl/src/pages/myOrders/index.vue
  * @Description: 订单管理页面
 -->
@@ -260,7 +260,7 @@
 
         <!-- 关闭按钮 -->
         <view class="detail-footer">
-          <nut-button type="primary" size="large" @click="closeOrderDetailPopup" block>
+          <nut-button type="primary" size="large" @click="closeOrderDetailPopup" block color="orange">
             关闭
           </nut-button>
         </view>

 <!--
  * @Date: 2022-09-19 14:11:06
  * @LastEditors: hookehuyr hookehuyr@gmail.com
- * @LastEditTime: 2025-07-04 13:00:25
+ * @LastEditTime: 2025-07-04 17:15:46
  * @FilePath: /jgdl/src/pages/productDetail/index.vue
  * @Description: 商品详情页
 -->
@@ -161,7 +161,7 @@
             <text class="text-lg font-medium mb-3 block">卖家信息</text>
             <view class="flex items-center justify-between">
                 <view class="flex items-center">
-                    <image :src="product.seller.avatar" :alt="product.seller.name" mode="aspectFill" class="w-10 h-10 rounded-full object-cover mr-3" />
+                    <image :src="product.seller.avatar || defaultAvatar" :alt="product.seller.name" mode="aspectFill" class="w-10 h-10 rounded-full object-cover mr-3" />
                     <view>
                         <view class="flex items-center">
                             <text class="font-medium">{{ product.seller.name }}</text>
@@ -247,7 +247,7 @@
                 </view>
                 <view class="seller-card bg-gray-50 rounded-lg p-3 mb-4">
                     <view class="flex items-center">
-                        <image :src="product.seller.avatar" :alt="product.seller.name" mode="aspectFill" class="w-12 h-12 rounded-full object-cover mr-3" />
+                        <image :src="product.seller.avatar || defaultAvatar" :alt="product.seller.name" mode="aspectFill" class="w-12 h-12 rounded-full object-cover mr-3" />
                         <view>
                             <text class="font-medium block">{{ product.seller.name }}</text>
                             <text class="text-sm text-gray-500 block">{{ product.seller.school }}</text>
@@ -308,6 +308,9 @@ import { Share, Heart1, HeartFill, Message } from '@nutui/icons-vue-taro'
 import payCard from '@/components/payCard.vue'
 import avatarImg from '@/assets/images/avatar.png'
 
+// 默认头像
+const defaultAvatar = 'https://cdn.ipadbiz.cn/mlaj/images/icon_1.jpeg'
+
 // 分享功能
 wx.showShareMenu({
     withShareTicket: true,

@@ -2,7 +2,7 @@
     <view class="profile-page">
         <!-- User Profile Section -->
         <view class="user-profile-section">
-            <image :src="userInfo.avatar" class="user-avatar" mode="aspectFill" />
+            <image :src="userInfo.avatar || defaultAvatar" class="user-avatar" mode="aspectFill" />
             <text class="user-name">{{ userInfo.name }}</text>
             <text class="user-phone">{{ userInfo.phone }}</text>
             <nut-button class="edit-profile-btn" @click="onEditProfile">
@@ -85,11 +85,14 @@ import {
 import Taro from '@tarojs/taro'
 import TabBar from '@/components/TabBar.vue'
 
+// 默认头像
+const defaultAvatar = 'https://cdn.ipadbiz.cn/mlaj/images/icon_1.jpeg'
+
 // 用户信息
 const userInfo = ref({
     name: '张同学',
     phone: '138****8888',
-    avatar: 'https://images.unsplash.com/photo-1535713875002-d1d0cf377fde?w=100&h=100&fit=crop&crop=face'
+    avatar: ''
 })
 
 // 用户统计

@@ -150,7 +150,7 @@ const themeVars = {
 }
 
 // 默认头像
-const defaultAvatar = 'https://randomuser.me/api/portraits/men/32.jpg'
+const defaultAvatar = 'https://cdn.ipadbiz.cn/mlaj/images/icon_1.jpeg'
 
 // 表单数据
 const formData = reactive({