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app/lib/features/campaign/campaign_detail_screen.dart

@@ -1,4 +1,6 @@
 import 'package:flutter/material.dart';
+
+import '../../core/ui/app_dialog.dart';
 import 'package:flutter/services.dart';
 import 'package:share_plus/share_plus.dart';
 
@@ -935,32 +937,19 @@ class _CampaignDetailScreenState extends State<CampaignDetailScreen> {
   /// 철회 확인 — 등록비 반환 여부를 먼저 알린다(B-58 · 공개 전만 반환).
   Future<void> _withdraw(CampaignCardData card) async {
     final beforePublish = card.status == CampaignStatus.review;
-    final go = await showDialog<bool>(
-      context: context,
-      builder: (context) => AlertDialog(
-        title: Text(context.l10n.campaignWithdrawTitle),
-        content: Text(
-          beforePublish
+    final go = await showConfirmDialog(
+      context,
+      context.l10n.campaignWithdrawTitle,
+      confirmLabel: context.l10n.campaignWithdrawConfirm,
+      body: beforePublish
               ? context.l10n.campaignWithdrawRefund(
                   formatPop(campaignRegistrationFeePop),
                 )
               : context.l10n.campaignWithdrawNoRefund(
                   formatPop(campaignRegistrationFeePop),
                 ),
-        ),
-        actions: [
-          TextButton(
-            onPressed: () => Navigator.of(context).pop(false),
-            child: Text(context.l10n.commonCancel),
-          ),
-          FilledButton(
-            onPressed: () => Navigator.of(context).pop(true),
-            child: Text(context.l10n.campaignWithdrawConfirm),
-          ),
-        ],
-      ),
     );
-    if (go != true || !mounted) return;
+    if (!go || !mounted) return;
     try {
       await widget.repository.withdraw(card.id);
     } on Object catch (error) {