diff --git a/apps/worker/worker_app/tasks/viral_video.py b/apps/worker/worker_app/tasks/viral_video.py
index bdbf9050c..8adc448c2 100644
--- a/apps/worker/worker_app/tasks/viral_video.py
+++ b/apps/worker/worker_app/tasks/viral_video.py
@@ -1163,7 +1163,9 @@ def _step_render(job: ViralVideoJob, copy_result: dict, tts_audio_url: str | Non
     usage = result.get("usage")
     if not video_path or not Path(video_path).exists() or Path(video_path).stat().st_size == 0:
         raise RuntimeError("Seedance 视频生成失败：返回空文件或路径不存在")
-    logger.info("[爆款视频] Seedance 单次生成完成: %s size=%d usage=%s", video_path, Path(video_path).stat().st_size, usage)
+    logger.info(
+        "[爆款视频] Seedance 单次生成完成: %s size=%d usage=%s", video_path, Path(video_path).stat().st_size, usage
+    )
     return str(video_path), (usage if isinstance(usage, dict) else None)
 
 
@@ -1566,6 +1568,7 @@ def _try_refund_viral_video(job: ViralVideoJob) -> None:
     """爆款视频生成失败：若已预扣积分则全额退款。"""
     try:
         from packages.shared import get_shared_settings
+
         _s = get_shared_settings()
         if not _s.points_enabled:
             return
@@ -1573,12 +1576,16 @@ def _try_refund_viral_video(job: ViralVideoJob) -> None:
         if prepaid <= 0:
             return
         from packages.domain.points_service import PointsService
+
         svc = PointsService()
         # 使用独立 session（避免污染外层事务）
         ssn = SessionLocal()
         try:
             svc.refund_viral_video(
-                job.user_id, prepaid, getattr(job, "credits_transaction_id", "") or "", ssn,
+                job.user_id,
+                prepaid,
+                getattr(job, "credits_transaction_id", "") or "",
+                ssn,
             )
             job.credits_prepaid = 0.0
         finally:
@@ -1591,6 +1598,7 @@ def _settle_viral_video(job: ViralVideoJob, usage: dict | None) -> None:
     """爆款视频生成成功：按实际 usage 结算，多退少补，写 credits_cost。"""
     try:
         from packages.shared import get_shared_settings
+
         _s = get_shared_settings()
         if not _s.points_enabled:
             job.credits_cost = 0.0
@@ -1602,6 +1610,7 @@ def _settle_viral_video(job: ViralVideoJob, usage: dict | None) -> None:
             return
         from packages.domain.points_rules import calculate_viral_video_credits, resolve_video_dimensions
         from packages.domain.points_service import PointsService
+
         w, h = resolve_video_dimensions(
             getattr(job, "video_resolution", "720p") or "720p",
             getattr(job, "video_ratio", "9:16") or "9:16",
@@ -1613,7 +1622,8 @@ def _settle_viral_video(job: ViralVideoJob, usage: dict | None) -> None:
                 actual_tokens = int(at)
         actual_credits = calculate_viral_video_credits(
             int(getattr(job, "duration", 15) or 15),
-            w, h,
+            w,
+            h,
             getattr(job, "video_model", "") or "seedance-2.5",
             actual_tokens=actual_tokens,
         )
@@ -1683,11 +1693,9 @@ def _run_render_pipeline(job_id: str, session, repo, job) -> dict:
     _set_stage(job, repo, session, ViralVideoStage.RENDERING, "正在生成视频（约1-3分钟）...")
     video_path = None
     usage = None
-    render_err = None
     try:
         video_path, usage = _step_render(job, copy_result, tts_url)
     except Exception as e:
-        render_err = e
         logger.error("[爆款视频][阶段3] Seedance 生成失败，触发退款: %s", e, exc_info=True)
         # 退款
         _try_refund_viral_video(job)
diff --git a/packages/adapters/sqlalchemy_impl/models.py b/packages/adapters/sqlalchemy_impl/models.py
index 4ecaf77f1..993c21c49 100755
--- a/packages/adapters/sqlalchemy_impl/models.py
+++ b/packages/adapters/sqlalchemy_impl/models.py
@@ -962,9 +962,9 @@ class ViralVideoJobModel(Base):
     )  # v1.6: 编导脚本结构{overview,scene_and_lighting,shots,hard_constraints,negative_prompts,voiceover_script}
     result_video_url = Column(String(1000), nullable=False, default="")
     credits_cost = Column(Float, nullable=False, default=0)
-    video_resolution = Column(String(20), nullable=False, default='720p')
+    video_resolution = Column(String(20), nullable=False, default="720p")
     credits_prepaid = Column(Float, nullable=False, default=0.0)
-    credits_transaction_id = Column(String(36), nullable=False, default='')
+    credits_transaction_id = Column(String(36), nullable=False, default="")
     error_msg = Column(Text, nullable=False, default="")
     retry_count = Column(Integer, nullable=False, default=0)
     started_at = Column(DateTime(timezone=True), nullable=True)
diff --git a/packages/domain/points_rules.py b/packages/domain/points_rules.py
index 21a142ee2..f62fda66e 100644
--- a/packages/domain/points_rules.py
+++ b/packages/domain/points_rules.py
@@ -32,9 +32,21 @@ VIRAL_VIDEO_FPS = 24
 
 # 分辨率别名映射 -> 标准 key
 _RESOLUTION_ALIASES: dict[str, str] = {
-    "480p": "480p", "普清": "480p", "default": "480p", "low": "480p", "sd": "480p",
-    "720p": "720p", "高清": "720p", "medium": "720p", "hd": "720p",
-    "1080p": "1080p", "超清": "1080p", "high": "1080p", "ultra": "1080p", "全能": "1080p", "fhd": "1080p",
+    "480p": "480p",
+    "普清": "480p",
+    "default": "480p",
+    "low": "480p",
+    "sd": "480p",
+    "720p": "720p",
+    "高清": "720p",
+    "medium": "720p",
+    "hd": "720p",
+    "1080p": "1080p",
+    "超清": "1080p",
+    "high": "1080p",
+    "ultra": "1080p",
+    "全能": "1080p",
+    "fhd": "1080p",
 }
 # 分辨率 -> 高度
 _RESOLUTION_HEIGHT: dict[str, int] = {"480p": 480, "720p": 720, "1080p": 1080}
diff --git a/packages/domain/points_service.py b/packages/domain/points_service.py
index a5f1ba28a..935df002d 100644
--- a/packages/domain/points_service.py
+++ b/packages/domain/points_service.py
@@ -328,7 +328,9 @@ class PointsService:
                 if not res.get("success"):
                     logger.warning(
                         "[viral_video] 结算补扣余额不足 user_id=%s extra=%.2f balance=%s (不阻塞任务完成)",
-                        user_id, extra, res.get("balance"),
+                        user_id,
+                        extra,
+                        res.get("balance"),
                     )
                 return {"success": bool(res.get("success")), "action": "deduct", "diff": extra, "amount": extra}
             except Exception:
diff --git a/tests/unit/test_viral_video.py b/tests/unit/test_viral_video.py
index 6938bc6a6..a7d363cf7 100755
--- a/tests/unit/test_viral_video.py
+++ b/tests/unit/test_viral_video.py
@@ -128,6 +128,7 @@ class TestViralVideoJobDefaults:
         assert job.result_video_url == ""
         assert job.error_msg == ""
 
+
 class TestViralVideoStage:
     """阶段枚举测试。"""
 
diff --git a/tests/unit/test_viral_video_p0.py b/tests/unit/test_viral_video_p0.py
index 30c70622c..2ab4de7c7 100644
--- a/tests/unit/test_viral_video_p0.py
+++ b/tests/unit/test_viral_video_p0.py
@@ -212,7 +212,10 @@ class TestCallVideoGeneration:
         with patch("packages.shared.ai_service.get_doubao_client") as mock_get:
             mock_client = MagicMock()
             mock_client.is_available = True
-            mock_client.video_generation.return_value = {"video_path": str(out), "usage": {"completion_tokens": 1000000}}
+            mock_client.video_generation.return_value = {
+                "video_path": str(out),
+                "usage": {"completion_tokens": 1000000},
+            }
             mock_get.return_value = mock_client
             result = call_video_generation(prompt="测试", image_url="https://img/x.jpg", duration=5, ratio="9:16")
             assert result is not None and result["video_path"] == str(out)
@@ -238,7 +241,10 @@ class TestCallVideoGenerationV16:
         with patch("packages.shared.ai_service.get_doubao_client") as mock_get:
             mock_client = MagicMock()
             mock_client.is_available = True
-            mock_client.video_generation.return_value = {"video_path": str(out), "usage": {"completion_tokens": 1500000}}
+            mock_client.video_generation.return_value = {
+                "video_path": str(out),
+                "usage": {"completion_tokens": 1500000},
+            }
             mock_get.return_value = mock_client
             result = call_video_generation(
                 prompt="测试",