fix: 更新 API 请求参数格式及优化组件样式

- 将 addEvaluation API 的参数从 params 修改为 data，以符合标准请求格式
- 在多个组件中调整样式，提升响应式布局和用户体验
- 优化商品详情页的倒计时显示，增强视觉效果
- 更新购物车操作按钮样式，提升一致性和可用性

buyer/src/pages/home/orderCenter/ApplyAfterSale.vue

@@ -29,8 +29,13 @@
           <el-input type="number" v-model="form.num" style="width:260px" />
         </el-form-item>
         <el-form-item label="提交原因" prop="reason">
-          <el-select v-model="form.reason" style="width:260px">
-            <el-option v-for="item in reasonList" :value="item.id" :key="item.id">{{ item.reason }}</el-option>
+          <el-select v-model="form.reason" style="width:260px" placeholder="请选择提交原因">
+            <el-option
+              v-for="item in reasonList"
+              :key="item.id"
+              :label="item.reason"
+              :value="item.id"
+            />
           </el-select>
         </el-form-item>
         <el-form-item label="问题描述" prop="problemDesc">

buyer/src/pages/home/orderCenter/MyAddress.vue

@@ -5,7 +5,7 @@
       <div class="address-header">
         <span>
           {{ item.name }}
-          <el-tag class="ml_10" v-if="item.isDefault" color="red">默认地址</el-tag>
+          <el-tag class="ml_10 default-address-tag" v-if="item.isDefault">默认地址</el-tag>
           <el-tag class="ml_10" v-if="item.alias" color="warning">{{item.alias}}</el-tag>
         </span>
         <div class="address-action">
@@ -121,6 +121,12 @@ export default {
   cursor: pointer;
 }
 
+.default-address-tag {
+  background-color: #fff3f2 !important;
+  border: 1px solid $theme_color !important;
+  color: $theme_color !important;
+}
+
 #map-container {
   width: 500px;
   height: 300px;