feat(approve): enhance search functionality and refine UI styling

- Update search bar padding to remove bottom spacing for better layout
- Rename search input variable from `keyword` to `order_sn` for clarity
- Add search input styling with custom font size (24rpx) and height (60rpx)
- Implement `onSearch` method to trigger data fetch on search input change
- Add order_sn parameter to API request when search value is provided
- Correct status filter logic to use '1' instead of '1,2' for processed items
- Enhance empty state display with custom icon size (140) and text size (24)
- Improve search UX by enabling real-time filtering based on order number

assets/css/approve/index.scss

@@ -4,7 +4,7 @@
   padding-bottom: 158rpx;
 
   .search-bar {
-    padding: 20rpx 28rpx;
+    padding: 20rpx 28rpx 0 28rpx;
     background: #ffffff;
   }
 

pages/approve/index.vue

 <template>
     <view class="approve-page">
         <view class="search-bar">
-            <u-search v-model="keyword" placeholder="订单号" shape="round" :showAction="false" bgColor="#f5f7fa"></u-search>
+            <u-search v-model="order_sn" placeholder="订单号" shape="round" :showAction="false" bgColor="#f5f7fa" :inputStyle="{ fontSize: '24rpx' }" height="60" :searchIconSize="34" @change="onSearch"></u-search>
         </view>
 
         <view class="tabs-wrap">
@@ -42,7 +42,7 @@
                 </view>
             </view>
 
-            <u-empty v-if="!currentList.length" mode="data" :text="currentTab === 0 ? '暂无待处理审批' : '暂无已处理审批'"></u-empty>
+            <u-empty v-if="!currentList.length" mode="data" :text="currentTab === 0 ? '暂无待处理审批' : '暂无已处理审批'" iconSize="140" textSize="24"></u-empty>
         </view>
     </view>
 </template>
@@ -53,7 +53,7 @@
     export default {
         data() {
             return {
-                keyword: '',
+                order_sn: '',
                 currentTab: 0,
                 tabList: [
                     { name: '待处理' },
@@ -77,8 +77,12 @@
              * @return {void}
              */
             getData() {
-                var statusVal = this.currentTab === 0 ? '0' : '1,2';
-                this.request(API.feeApproveList, 'GET', { status: statusVal }, true).then(res => {
+                var statusVal = this.currentTab === 0 ? '0' : '1';
+                var params = { status: statusVal };
+                if (this.order_sn) {
+                    params.order_sn = this.order_sn;
+                }
+                this.request(API.feeApproveList, 'GET', params, true).then(res => {
                     if (res.code === 0) {
                         var { list = [], total = 0 } = res.data || {};
                         if (this.currentTab === 0) {
@@ -91,6 +95,13 @@
                 });
             },
             /**
+             * 搜索
+             * @return {void}
+             */
+            onSearch() {
+                this.getData();
+            },
+            /**
              * Tab 切换
              * @param {Object} item - 选中的 tab 项
              * @return {void}