diff --git a/proto/user.proto b/proto/user.proto
index 058fb9e..180ec69 100644
--- a/proto/user.proto
+++ b/proto/user.proto
@@ -3,45 +3,52 @@ syntax = "proto3";
 package user;
 option go_package = "./proto;userpb";
 
+// 登录请求
 message LoginRequest {
   string username = 1;
   string password = 2;
 }
 
+// 登录响应
 message LoginResponse {
-  string token = 1;
-  UserInfo user_info = 2;
+  string user_id = 1;
+  string username = 2;
+  string email = 3;
+  string access_token = 4;
+  int32 expires_in = 5; // token过期时间(秒)
 }
 
+// 用户注册请求
 message RegisterRequest {
   string username = 1;
   string password = 2;
   string email = 3;
 }
 
+// 用户注册响应
 message RegisterResponse {
-  bool success = 1;
-  string message = 2;
-  UserInfo user_info = 3;
-}
-
-message UserInfo {
-  string id = 1;
+  string user_id = 1;
   string username = 2;
   string email = 3;
 }
 
-message TokenRequest {
-  string token = 1;
+// 令牌验证请求
+message ValidateTokenRequest {
+  string access_token = 1;
 }
 
-message ValidateResponse {
-  bool valid = 1;
-  UserInfo user_info = 2;
+// 令牌验证响应
+message ValidateTokenResponse {
+  string user_id = 1;
+  bool is_valid = 2;
 }
 
+// 用户服务定义
 service UserService {
+  // 用户登录
   rpc Login(LoginRequest) returns (LoginResponse);
+  // 用户注册
   rpc Register(RegisterRequest) returns (RegisterResponse);
-  rpc ValidateToken(TokenRequest) returns (ValidateResponse);
+  // 验证访问令牌
+  rpc ValidateToken(ValidateTokenRequest) returns (ValidateTokenResponse);
 }
\ No newline at end of file