diff --git a/src/main/java/com/gxwebsoft/common/system/controller/MainController.java b/src/main/java/com/gxwebsoft/common/system/controller/MainController.java
index 19f1e10..c17896f 100644
--- a/src/main/java/com/gxwebsoft/common/system/controller/MainController.java
+++ b/src/main/java/com/gxwebsoft/common/system/controller/MainController.java
@@ -1603,6 +1603,7 @@ public class MainController extends BaseController {
     company.setEmail(email);
     company.setPhone(phone);
     company.setPassword(password);
+    company.setAppCode(user.getAppCode());
     company.setTid(tenant.getTenantId());
     company.setShortName(tenantName);
     company.setCategoryId(661);
diff --git a/src/main/java/com/gxwebsoft/common/system/entity/Company.java b/src/main/java/com/gxwebsoft/common/system/entity/Company.java
index aeedfa6..ca7ea17 100644
--- a/src/main/java/com/gxwebsoft/common/system/entity/Company.java
+++ b/src/main/java/com/gxwebsoft/common/system/entity/Company.java
@@ -294,6 +294,10 @@ public class Company implements Serializable {
     @TableField(exist = false)
     private String password;
 
+    @Schema(description = "应用代号（非数据库字段，注册时由前端传入，用于生成开通邮件中的域名，如 mp/shop/site）")
+    @TableField(exist = false)
+    private String appCode;
+
     @Schema(description = "手机号(脱敏)")
     @TableField(exist = false)
     private String mobile;
diff --git a/src/main/java/com/gxwebsoft/common/system/entity/User.java b/src/main/java/com/gxwebsoft/common/system/entity/User.java
index 1f504f9..a1dffae 100644
--- a/src/main/java/com/gxwebsoft/common/system/entity/User.java
+++ b/src/main/java/com/gxwebsoft/common/system/entity/User.java
@@ -61,6 +61,10 @@ public class User implements UserDetails {
     @Schema(description = "邮箱")
     private String email;
 
+    @Schema(description = "应用代号（非数据库字段，注册时由前端传入，用于生成开通邮件中的域名，如 mp/shop/site）")
+    @TableField(exist = false)
+    private String appCode;
+
     @Schema(description = "邮箱验证码（非数据库字段，仅用于绑定/修改邮箱时校验）")
     @TableField(exist = false)
     private String emailCode;
diff --git a/src/main/java/com/gxwebsoft/common/system/service/impl/TenantServiceImpl.java b/src/main/java/com/gxwebsoft/common/system/service/impl/TenantServiceImpl.java
index ef7014e..8b12d29 100644
--- a/src/main/java/com/gxwebsoft/common/system/service/impl/TenantServiceImpl.java
+++ b/src/main/java/com/gxwebsoft/common/system/service/impl/TenantServiceImpl.java
@@ -619,17 +619,38 @@ import java.util.stream.Collectors;
         }
 
       }
-      // 发送邮件通知
-      String title = "恭喜！您的应用已创建成功";
-      String appUrl = "\r\n应用地址：" + DomainUtil.getSiteUrl(company.getTid().toString());
-      String appName = "\r\n应用名称：" + company.getShortName();
-      String adminUrl = "\r\n后台管理：" + DomainUtil.getAdminUrl(company.getTid().toString());
-      String account = "\r\n账号：admin";
-      String password = "\r\n密码：" + company.getPassword();
-      String content = title + appUrl + appName + adminUrl + account + password;
+      // 发送邮件通知（按应用代号区分域名：前端注册时传入 appCode，未知默认 mp）
+      // mp   -> https://mp-{tid}.shoplnk.cn    后台 https://mp.websoft.top
+      // shop -> https://shop-{tid}.shoplnk.cn  后台 https://shop.websoft.top
+      // site -> https://site-{tid}.websoft.top 后台 https://site.websoft.top
+      final Map<String, String[]> appDomainMap = new HashMap<>(3);
+      appDomainMap.put("mp", new String[]{"mp", "shoplnk.cn", "mp.websoft.top"});
+      appDomainMap.put("shop", new String[]{"shop", "shoplnk.cn", "shop.websoft.top"});
+      appDomainMap.put("site", new String[]{"site", "websoft.top", "site.websoft.top"});
+      final String appCode = StrUtil.isBlank(company.getAppCode()) ? "mp" : company.getAppCode();
+      final String[] domainCfg = appDomainMap.getOrDefault(appCode, appDomainMap.get("mp"));
+      final String sitePrefix = domainCfg[0];
+      final String siteDomain = domainCfg[1];
+      final String adminHost = domainCfg[2];
+      final String siteUrl = "https://" + sitePrefix + "-" + company.getTid() + "." + siteDomain;
+      final String adminUrl = "https://" + adminHost;
+      final String title = "您的企业官网已开通成功";
+      final StringBuilder content = new StringBuilder();
+      content.append("尊敬的用户：\r\n\r\n");
+      content.append("恭喜！您的企业官网「").append(company.getShortName()).append("」已开通成功。\r\n\r\n");
+      content.append("您可以使用以下信息登录管理后台，继续完善站点内容：\r\n\r\n");
+      content.append("• 官网地址：").append(siteUrl).append("\r\n");
+      content.append("• 后台地址：").append(adminUrl).append("\r\n");
+      content.append("• 登录账号：").append(company.getEmail()).append("\r\n");
+      content.append("• 登录密码：").append(company.getPassword()).append("\r\n\r\n");
+      content.append("安全提示：\r\n");
+      content.append("1. 请妥善保管登录密码，不要通过邮件、聊天工具发送给他人。\r\n");
+      content.append("2. 建议首次登录后立即进入「个人中心 > 修改密码」重置密码。\r\n\r\n");
+      content.append("点击登录后台：").append(adminUrl).append("\r\n\r\n");
+      content.append("如有疑问，请联系客服或访问帮助中心。");
       // 发送邮件通知
       if (company.getEmail() != null) {
-        emailRecordService.sendEmail(title, content, company.getEmail(), company.getTid());
+        emailRecordService.sendEmail(title, content.toString(), company.getEmail(), company.getTid());
       }
       return company;
     }