diff --git a/CHANGELOG-client.md b/CHANGELOG-client.md
index 1f3d561..e43e4f5 100644
--- a/CHANGELOG-client.md
+++ b/CHANGELOG-client.md
@@ -621,7 +621,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 - 修复 Windows 桌面端打印卡死：打印字体由 OpenType/CFF 改为 TrueType(glyf)，dart_pdf 渲染中文不再抛错（此前点「打印」后卡死）
 
 ### 改进
-- 「关于我们」内容改为真实信息（服务商：岩美技术有限公司；网站：jiu.yanmei.com；邮箱：yammy2023@163.com），且统一从配置文件读取，不再硬编码
+- 「关于我们」内容改为真实信息（服务商：岩美技术有限公司；网站：jiu.yanmei.com；邮箱：support@51yanmei.com），且统一从配置文件读取，不再硬编码
 - Windows 桌面端窗口标题由 jiu_client 改为「岩美酒库」
 
 ## [1.0.13] - 2026-06-04
diff --git a/client/assets/config/app_info.json b/client/assets/config/app_info.json
index d8a2adf..b0e40b7 100644
--- a/client/assets/config/app_info.json
+++ b/client/assets/config/app_info.json
@@ -1,7 +1,7 @@
 {
   "provider": "岩美技术有限公司",
   "website": "https://jiu.51yanmei.com",
-  "email": "yammy2023@163.com",
+  "email": "support@51yanmei.com",
   "phone": "",
   "wechat": "",
   "terms_url": "https://jiu.51yanmei.com/terms/",
diff --git a/client/lib/screens/auth/login_screen.dart b/client/lib/screens/auth/login_screen.dart
index 403856e..c87c9e8 100644
--- a/client/lib/screens/auth/login_screen.dart
+++ b/client/lib/screens/auth/login_screen.dart
@@ -18,6 +18,7 @@ import 'package:url_launcher/url_launcher.dart';
 import '../../core/auth/auth_state.dart';
 import '../../core/config/app_config.dart';
 import '../../core/config/app_constants.dart';
+import '../../core/config/store_compliance.dart';
 import '../../core/responsive/responsive.dart';
 import '../../core/storage/login_history.dart';
 import '../../core/theme/app_chrome.g.dart';
@@ -52,8 +53,9 @@ class _LoginScreenState extends ConsumerState<LoginScreen> {
   bool _remember = true;
   String? _errorMessage;
 
-  // 客服邮箱（授权续费 / 锁定协助）。与官网 web/_data/site.json 的 support.email 保持一致。
-  static const _supportEmail = 'yammy2023@163.com';
+  // 客服邮箱（授权续费 / 锁定协助）。单一来源 store_compliance.supportEmail，
+  // 与官网 web/_data/site.json 的 support.email 保持一致。
+  static const _supportEmail = supportEmail;
 
   /// 当前错误是否为「授权锁定」——后端返回固定文案
   /// `license locked, please renew or contact support`（见 service.ErrLicenseLocked）。