diff --git a/apps/api/app/schemas/viral_video.py b/apps/api/app/schemas/viral_video.py
index 792c657ee..96bd65843 100755
--- a/apps/api/app/schemas/viral_video.py
+++ b/apps/api/app/schemas/viral_video.py
@@ -201,7 +201,9 @@ class ViralVideoJobResponse(BaseModel):
     style_guide: dict | None = None
     style_template_id: str = ""
     status: str
-    current_stage: str = ""  # 细粒度阶段 snake_case（analyzing_images/parsing_intent/generating_script/reviewing/tts_synthesizing/rendering_video/uploading）
+    current_stage: str = (
+        ""  # 细粒度阶段 snake_case（analyzing_images/parsing_intent/generating_script/reviewing/tts_synthesizing/rendering_video/uploading）
+    )
     phase_message: str = ""  # 中文阶段提示文案（前端轮询/SSE 直接展示）
     image_analysis: dict | None = None
     # v1.6 编导脚本（推荐前端使用）