diff --git a/packages/adapters/sqlalchemy_impl/viral_video_repository.py b/packages/adapters/sqlalchemy_impl/viral_video_repository.py
index 6b6755578..6265c0fa5 100755
--- a/packages/adapters/sqlalchemy_impl/viral_video_repository.py
+++ b/packages/adapters/sqlalchemy_impl/viral_video_repository.py
@@ -14,6 +14,7 @@ from packages.domain.viral_video import ViralVideoJob, ViralVideoStatus
 def _to_domain(model: ViralVideoJobModel) -> ViralVideoJob:
     """ORM → 领域实体。pre_trusted_images 兼容脏数据：双序列化字符串/字符数组/list[str]。"""
     import json as _pti_json
+
     _raw_pti = getattr(model, "pre_trusted_images", None)
     _pti: list[str] | None = None
     if _raw_pti is not None: