style(weakNetwork): 调整弱网页面样式和图标

更新弱网页面的图标大小、颜色和布局，添加预约码图标
修改按钮背景色和文字样式，优化视觉呈现

@@ -2,13 +2,14 @@
   <view class="weak-network-page">
     <view class="content">
       <view class="icon-wrapper">
-        <IconFont name="mask-close" size="120" color="#ccc" />
+        <IconFont name="mask-close" size="60" color="#A67939" />
       </view>
       <view class="title">网络连接不畅</view>
       <view class="desc">当前网络信号较弱，已自动为您切换至离线模式</view>
 
       <view class="offline-entry" @tap="toOfflineCode">
         <view class="circle-btn">
+          <image :src="icon_invite" style="width: 60rpx; height: 60rpx; margin-bottom: 16rpx;" />
           <text>预约码</text>
         </view>
       </view>
@@ -25,6 +26,8 @@ import Taro from '@tarojs/taro'
 import { IconFont } from '@nutui/icons-vue-taro'
 import { useGo } from '@/hooks/useGo'
 
+import icon_invite from '@/assets/images/二维码@2x2.png'
+
 const go = useGo();
 
 const toOfflineCode = () => {
@@ -78,15 +81,16 @@ const retry = () => {
             width: 240rpx;
             height: 240rpx;
             border-radius: 50%;
-            background: linear-gradient(135deg, #A67939 0%, #C69C5C 100%);
+            background: #FFFFFF;
             display: flex;
+            flex-direction: column;
             align-items: center;
             justify-content: center;
             box-shadow: 0 10rpx 30rpx rgba(166, 121, 57, 0.4);
 
             text {
-                color: #fff;
-                font-size: 40rpx;
+                color: #A67939;
+                font-size: 32rpx;
                 font-weight: bold;
                 letter-spacing: 2rpx;
             }