修复在上传高清图之后支付方法重置的问题，支付总额增加失焦更新

pages/orderDetailRefactored/components/PageThree.vue

@@ -99,7 +99,8 @@
         <view class="payment-total-container">
           <text class="payment-label">支付总额</text>
           <view class="payment-amount-wrap">
-            <u-input v-model="paymentAmount" class="payment-amount" type="number" decimal="2" prefix="￥" />
+            <u-input v-model="paymentAmount" class="payment-amount" type="number" decimal="2" prefix="￥"
+              @blur="handlePaymentAmountBlur" />
           </view>
           <view class="pay-now-btn-wrap">
           <u-button type="primary" shape="circle" plain text="立即支付" size="small" @click="handlePayNowClick"></u-button>
@@ -280,15 +281,20 @@ export default {
     currentReceipt: {
       handler(newVal, oldVal) {
         if (newVal) {
-          this.paymentAmount = newVal.tableFee || '0.00'
-          // 从回单表 receiptForm 回填支付信息（与 PC 端一致）
-          this.paymentInfo.customName = newVal.customName || ''
-          this.paymentInfo.bankName = newVal.bankName || ''
-          this.paymentInfo.bankAccount = newVal.bankCardNumber || ''
-          this.paymentInfo.idNumber = newVal.idCard || ''
-          this.initPaymentMethod(newVal.paymentMethod)
+          //是为了修复一个问题，当上传高清图片时，支付方式会被重置，这里是为了避免这个问题
+          // 仅当回单 id 变化时（切换了回单）才从 receipt 回填表单，避免上传图片等只更新 fileIds 时触发 watch 导致支付方式被重置
+          const receiptIdChanged = !oldVal || oldVal.id !== newVal.id
+          if (receiptIdChanged) {
+            this.paymentAmount = newVal.tableFee || '0.00'
+            // 从回单表 receiptForm 回填支付信息（与 PC 端一致）
+            this.paymentInfo.customName = newVal.customName || ''
+            this.paymentInfo.bankName = newVal.bankName || ''
+            this.paymentInfo.bankAccount = newVal.bankCardNumber || ''
+            this.paymentInfo.idNumber = newVal.idCard || ''
+            this.initPaymentMethod(newVal.paymentMethod)
+          }
           // 只有当 receipt id 变化时才重新加载图片，避免 fileIds 更新时重新加载
-          if (!oldVal || oldVal.id !== newVal.id) {
+          if (receiptIdChanged) {
             this.loadDetailImages()
           }
         }
@@ -385,7 +391,7 @@ export default {
     },
 
     /**
-     * 失焦后保存支付信息（开户人/银行名称/账号/身份证）
+     * 失焦后保存支付信息（开户人/银行名称/账号/身份证/支付总额）
      */
     async savePaymentInfoOnBlur() {
       if (!this.currentReceipt || !this.currentReceipt.id) return
@@ -396,7 +402,8 @@ export default {
           customName: this.paymentInfo.customName || '',
           bankName: this.paymentInfo.bankName || '',
           bankCardNumber: this.paymentInfo.bankAccount || '',
-          idCard: this.paymentInfo.idNumber || ''
+          idCard: this.paymentInfo.idNumber || '',
+          tableFee: this.paymentAmount || '0.00'
         })
       } catch (e) {
         console.error('保存支付信息失败:', e)
@@ -446,6 +453,13 @@ export default {
     },
 
     /**
+     * 支付总额失焦保存
+     */
+    async handlePaymentAmountBlur() {
+      this.savePaymentInfoOnBlur()
+    },
+
+    /**
      * 获取图片类型
      */
     getImageType(index) {