diff --git a/frontend/src/pages/activity/Detail.jsx b/frontend/src/pages/activity/Detail.jsx
index 8f1ae86..3493fdf 100644
--- a/frontend/src/pages/activity/Detail.jsx
+++ b/frontend/src/pages/activity/Detail.jsx
@@ -101,8 +101,8 @@ const ActivityDetail = () => {
          // 延迟一点点时间打开支付弹窗，避免状态更新冲突
          setTimeout(() => {
             setPaymentModalVisible(true);
-         }, 100);
-         message.info(data.message || '请扫码支付');
+         }, 300);
+         // 不再显示 message，避免遮挡
          return;
       }
 
@@ -391,6 +391,7 @@ const ActivityDetail = () => {
         open={signupFormVisible}
         onCancel={() => setSignupFormVisible(false)}
         onOk={form.submit}
+        okText={activity?.is_paid && activity?.price > 0 ? `支付 ¥${activity.price}` : '提交报名'}
         confirmLoading={signUpMutation.isPending}
         destroyOnHidden
       >