diff --git a/src/views/dms/dmsFaultInstanceActivity/index.vue b/src/views/dms/dmsFaultInstanceActivity/index.vue
index c39df7e..8bde965 100644
--- a/src/views/dms/dmsFaultInstanceActivity/index.vue
+++ b/src/views/dms/dmsFaultInstanceActivity/index.vue
@@ -279,6 +279,7 @@
 // 导入相关模块
 import { ref, reactive, computed, onMounted, getCurrentInstance, toRefs, watch } from 'vue';
 import { useRoute, useRouter } from 'vue-router';
+import { ElMessageBox } from 'element-plus';
 import { getDmsBillsFaultInstance, approveWorkOrder, confirmRepairResult } from '@/api/dms/dmsBillsFaultInstance';
 import { addDmsFaultInstanceActivity } from '@/api/dms/dmsFaultInstanceActivity';
 import { pageByTaskWait } from '@/api/workflow/task';
@@ -509,7 +510,7 @@ const initializeFormData = () => {
   form.repairer = workOrder.value?.repairer || '';
   form.repairConfirm = workOrder.value?.repairConfirm || '';
   form.componentsPartsId = workOrder.value?.componentsPartsId || '';
-  
+
   // 如果是审批阶段，设置默认审批状态
   if (routeParams.value.type === 'approval' && !form.approveStatus) {
     form.approveStatus = undefined; // 保持未选择状态，让用户必须选择
@@ -595,18 +596,18 @@ const approvalVerifyOpen = async () => {
     const valid = await processFormRef.value.validate();
     if (valid) {
       await proxy?.$modal.confirm('是否确认提交审批？');
-      
+
       buttonLoading.value = true;
-      
+
       // 直接调用后端审批接口，后端会在同一事务中处理业务状态更新和工作流推进
       const approveStatus = form.approveStatus;
       const message = form.processHandleResolution || '';
 
       await approveWorkOrder(form.repairInstanceId, approveStatus, message);
-      
+
       const statusText = approveStatus === '2' ? '通过' : '拒绝';
       proxy?.$modal.msgSuccess(`审批${statusText}成功`);
-      
+
       // 关闭页面返回
       goBack();
     }
@@ -662,38 +663,49 @@ const submitCallback = async (approvalResult?: any) => {
 // 主管确认处理
 const handleConfirm = async () => {
   try {
-    // 显示确认对话框
-    await proxy?.$modal.confirm('是否确认维修结果通过？\n通过：维修通过，工单完成\n退回：维修不通过，返回维修环节重新维修');
-    
+    // 使用自定义按钮的确认对话框
+    const result = await ElMessageBox.confirm(
+      '请选择维修结果确认方式：\n• 通过：维修通过，工单完成\n• 退回：维修不通过，返回维修环节重新维修',
+      '主管确认',
+      {
+        confirmButtonText: '通过',
+        cancelButtonText: '退回',
+        type: 'warning',
+        distinguishCancelAndClose: true
+      }
+    );
+
     buttonLoading.value = true;
-    
-    // 用户点击确定，设置为确认通过
+
+    // 用户点击通过，设置为确认通过
     form.repairConfirm = '1'; // 1表示确认通过
-    
+
     // 调用主管确认接口
     await confirmRepairResult(form.repairInstanceId, form.repairConfirm);
     proxy?.$modal.msgSuccess('确认通过完成');
     goBack();
-    
-  } catch (error: any) {
-    if (error === 'cancel' || error === 'close') {
-      // 用户点击取消，设置为确认不通过
+
+  } catch (action: any) {
+    if (action === 'cancel') {
+      // 用户点击退回，设置为确认不通过
       try {
         buttonLoading.value = true;
         form.repairConfirm = '2'; // 2表示确认不通过
         await confirmRepairResult(form.repairInstanceId, form.repairConfirm);
-        proxy?.$modal.msgSuccess('确认不通过完成');
+        proxy?.$modal.msgSuccess('退回维修环节完成');
         goBack();
       } catch (confirmError: any) {
-        console.error('确认不通过失败:', confirmError);
-        proxy?.$modal.msgError('确认不通过失败：' + (confirmError.message || '未知错误'));
+        console.error('退回操作失败:', confirmError);
+        proxy?.$modal.msgError('退回操作失败：' + (confirmError.message || '未知错误'));
       } finally {
         buttonLoading.value = false;
       }
+    } else if (action === 'close') {
+      // 用户点击关闭按钮或按ESC键，不执行任何操作
+      console.log('用户取消了确认操作');
     } else {
-      console.error('确认失败:', error);
-      proxy?.$modal.msgError('确认失败：' + (error.message || '未知错误'));
-      buttonLoading.value = false;
+      console.error('确认失败:', action);
+      proxy?.$modal.msgError('确认失败：' + (action.message || '未知错误'));
     }
   } finally {
     if (form.repairConfirm === '1') {
@@ -745,8 +757,8 @@ const setDynamicValidationRules = () => {
     // 审批阶段：需要审批状态和处理意见
     rules.approveStatus = [{ required: true, message: '审批状态不能为空', trigger: 'change' }];
     rules.processHandleResolution = [{ required: true, message: '处理意见不能为空', trigger: 'blur' }];
-  } else if (workOrder.value?.billsStatus === '2' && 
-             workOrder.value?.approveStatus === '2' && 
+  } else if (workOrder.value?.billsStatus === '2' &&
+             workOrder.value?.approveStatus === '2' &&
              workOrder.value?.repairConfirm === '0') {
     // 主管确认阶段：需要确认结果和处理意见
     rules.repairConfirm = [{ required: true, message: '维修结果不能为空', trigger: 'change' }];