diff --git a/platforms/chatgpt/oauth_client.py b/platforms/chatgpt/oauth_client.py
index d5032f8..5435b3a 100644
--- a/platforms/chatgpt/oauth_client.py
+++ b/platforms/chatgpt/oauth_client.py
@@ -835,6 +835,7 @@ class OAuthClient:
         prefer_passwordless_login=False,
         allow_phone_verification=True,
         force_new_browser=False,
+        screen_hint="login",
         complete_about_you_if_needed=False,
         first_name="",
         last_name="",
@@ -856,6 +857,7 @@ class OAuthClient:
             prefer_passwordless_login: 是否强制走 passwordless OTP 链路
             allow_phone_verification: add_phone 后是否允许进入手机号验证码分支
             complete_about_you_if_needed: 命中 about_you 后是否自动提交资料完成注册
+            screen_hint: authorize/continue 的 screen_hint（login/signup）
             first_name: about_you 名字
             last_name: about_you 姓氏
             birthdate: about_you 生日，格式 YYYY-MM-DD
@@ -876,7 +878,8 @@ class OAuthClient:
             f"prefer_passwordless_login={'on' if prefer_passwordless_login else 'off'}, "
             f"allow_phone_verification={'on' if allow_phone_verification else 'off'}, "
             f"complete_about_you_if_needed={'on' if complete_about_you_if_needed else 'off'}, "
-            f"force_new_browser={'on' if force_new_browser else 'off'}"
+            f"force_new_browser={'on' if force_new_browser else 'off'}, "
+            f"screen_hint={screen_hint or 'login'}"
         )
 
         if force_new_browser:
@@ -932,7 +935,7 @@ class OAuthClient:
             impersonate=impersonate,
             authorize_url=authorize_url,
             authorize_params=authorize_params,
-            screen_hint="login",
+            screen_hint=str(screen_hint or "login"),
         )
         if not state:
             if not self.last_error:
diff --git a/platforms/chatgpt/refresh_token_registration_engine.py b/platforms/chatgpt/refresh_token_registration_engine.py
index 43c1b9b..54ded9e 100644
--- a/platforms/chatgpt/refresh_token_registration_engine.py
+++ b/platforms/chatgpt/refresh_token_registration_engine.py
@@ -444,6 +444,11 @@ class RefreshTokenRegistrationEngine:
                     oauth_client = self._build_oauth_client()
                     self._log("3. 新开 OAuth session，按 screen_hint=login + passwordless OTP 登录...")
                     self._log("4. 若命中 about_you，则在 OAuth 会话内提交姓名+生日，再继续 workspace/token")
+                    oauth_screen_hint = "login"
+                    if registration_message == "pending_about_you_submission":
+                        oauth_screen_hint = "signup"
+                        self._log("OAuth 使用 screen_hint=signup 以恢复未完成的 about_you")
+
                     tokens = oauth_client.login_and_get_tokens(
                         result.email,
                         self.password,
@@ -455,6 +460,7 @@ class RefreshTokenRegistrationEngine:
                         prefer_passwordless_login=True,
                         allow_phone_verification=False,
                         force_new_browser=True,
+                        screen_hint=oauth_screen_hint,
                         complete_about_you_if_needed=True,
                         first_name=first_name,
                         last_name=last_name,