diff --git a/backend/app/api/endpoints/prediction.py b/backend/app/api/endpoints/prediction.py
index 999586c..b405c56 100644
--- a/backend/app/api/endpoints/prediction.py
+++ b/backend/app/api/endpoints/prediction.py
@@ -186,12 +186,10 @@ def recommend_today(db: Session = Depends(get_db)):
     # 2. 组装推送内容（固定投注+4注推荐）
     msg_lines = [title]
     # 固定投注
-    msg_lines.append(f"红球：{' '.join(f'{n:02d}' for n in fixed['red'])} 蓝球：{
-                     ' '.join(f'{n:02d}' for n in fixed['blue'])}")
+    msg_lines.append(f"红球：{' '.join(f'{n:02d}' for n in fixed['red'])} 蓝球：{' '.join(f'{n:02d}' for n in fixed['blue'])}")
     # 推荐号码
     for rec in results:
-        msg_lines.append(f"红球：{' '.join(f'{n:02d}' for n in rec['red'])} 蓝球：{
-                         ' '.join(f'{n:02d}' for n in rec['blue'])}")
+        msg_lines.append(f"红球：{' '.join(f'{n:02d}' for n in rec['red'])} 蓝球：{' '.join(f'{n:02d}' for n in rec['blue'])}")
     if dlt_append:
         msg_lines.append("都追加，谢谢。")
     # 3. 快乐8推送（3注十选，合并到主消息）