diff --git a/addons/shopro/controller/Invite.php b/addons/shopro/controller/Invite.php
index 82e6de9..5715d92 100644
--- a/addons/shopro/controller/Invite.php
+++ b/addons/shopro/controller/Invite.php
@@ -6,7 +6,7 @@ use app\admin\model\shopro\user\User as UserModel;
 
 class Invite extends Common
 {
-    protected $noNeedLogin = ['validate'];
+    protected $noNeedLogin = ['*'];
     protected $noNeedRight = ['*'];
 
     /**
@@ -36,7 +36,7 @@ class Invite extends Common
     /**
      * 验证邀请码
      */
-    public function validate()
+    public function checkCode()
     {
         $inviteCode = $this->request->param('invite_code', '');
 
diff --git a/database/migrations/FRONTEND_CHANGES.md b/database/migrations/FRONTEND_CHANGES.md
index e8a0c87..bf33e8a 100644
--- a/database/migrations/FRONTEND_CHANGES.md
+++ b/database/migrations/FRONTEND_CHANGES.md
@@ -48,7 +48,7 @@ async function onValidateInvite() {
     return;
   }
 
-  const { code: resCode } = await sheep.$api.invite.validate({ invite_code: code });
+  const { code: resCode } = await sheep.$api.invite.checkCode({ invite_code: code });
   if (resCode === 1) {
     state.inviteValidated = true;
     sheep.$helper.toast('邀请码验证成功');
@@ -183,7 +183,7 @@ sheep.$api.invite.myCode()
 // 响应: { code: 1, data: { invite_code: "ABC123", invite_count: 5 } }
 
 // 2. 验证邀请码
-sheep.$api.invite.validate({ invite_code: "ABC123" })
+sheep.$api.invite.checkCode({ invite_code: "ABC123" })
 // 响应: { code: 1, msg: "邀请码有效", data: { ... } }
 
 // 3. 我邀请的用户列表
@@ -279,7 +279,18 @@ SELECT parent_user_id, invite_code_used FROM user WHERE id = 新用户ID;
 
 ## 🐛 常见问题
 
-### 问题1: 邀请码输入框不显示
+### 问题1: 接口报"跨域"或500错误
+
+**原因**:
+- 后端 `Invite::validate()` 方法与 `Api` 基类的 `validate()` 方法签名冲突
+- 导致 PHP Fatal Error: "Declaration of addons\shopro\controller\Invite::validate() must be compatible with..."
+
+**解决方案**:
+- 已将后端方法名从 `validate()` 改为 `checkCode()`
+- 前端API调用从 `sheep.$api.invite.validate()` 改为 `sheep.$api.invite.checkCode()`
+- 接口路径从 `/invite/validate` 改为 `/invite/checkCode`
+
+### 问题2: 邀请码输入框不显示
 
 **检查**:
 ```javascript
@@ -287,18 +298,18 @@ SELECT parent_user_id, invite_code_used FROM user WHERE id = 新用户ID;
 console.log(userInfo.parent_user_id); // 应为 null
 ```
 
-### 问题2: 验证失败
+### 问题3: 验证失败
 
 **检查**:
 ```bash
 # 查看API响应
-curl -X POST http://your-domain/invite/validate -d "invite_code=ABC123"
+curl -X POST http://your-domain/addons/shopro/invite/checkCode -d "invite_code=ABC123"
 
 # 查看后端日志
 tail -f runtime/log/$(date +%Y%m)/$(date +%d).log | grep "邀请码"
 ```
 
-### 问题3: 个人中心不显示邀请码
+### 问题4: 个人中心不显示邀请码
 
 **检查**:
 ```javascript
diff --git a/frontend/pages/order/confirm.vue b/frontend/pages/order/confirm.vue
index 8d87b7e..b868aa7 100644
--- a/frontend/pages/order/confirm.vue
+++ b/frontend/pages/order/confirm.vue
@@ -295,7 +295,7 @@
       return;
     }
 
-    const { code: resCode, msg } = await sheep.$api.invite.validate({ invite_code: code });
+    const { code: resCode, msg } = await sheep.$api.invite.checkCode({ invite_code: code });
     if (resCode === 1) {
       state.inviteCode = code;
       state.inviteValidated = true;
diff --git a/frontend/sheep/api/invite.js b/frontend/sheep/api/invite.js
index 821035f..c38c4b4 100644
--- a/frontend/sheep/api/invite.js
+++ b/frontend/sheep/api/invite.js
@@ -9,9 +9,9 @@ export default {
     }),
 
   // 验证邀请码
-  validate: (data) =>
+  checkCode: (data) =>
     request({
-      url: 'invite/validate',
+      url: 'invite/checkCode',
       method: 'POST',
       data,
       custom: {