diff --git a/apps/api/app/api/router.py b/apps/api/app/api/router.py
index 4e66d4ce6..b5108ce50 100755
--- a/apps/api/app/api/router.py
+++ b/apps/api/app/api/router.py
@@ -7,8 +7,8 @@ from app.api.routes.chunked_upload import router as chunked_upload_router
 from app.api.routes.classification_jobs import router as classification_jobs_router
 from app.api.routes.duplication import router as duplication_router
 from app.api.routes.feature_flags import router as feature_flags_router
-from app.api.routes.generation_tasks import router as generation_tasks_router
 from app.api.routes.generation_preview import router as generation_preview_router
+from app.api.routes.generation_tasks import router as generation_tasks_router
 from app.api.routes.health import router as health_check_router
 from app.api.routes.ingest_jobs import router as ingest_jobs_router
 from app.api.routes.internal_render import router as internal_render_router
diff --git a/apps/web/src/pages/editing-planner/EditingPlanner.css b/apps/web/src/pages/editing-planner/EditingPlanner.css
index e13607330..9260e772a 100644
--- a/apps/web/src/pages/editing-planner/EditingPlanner.css
+++ b/apps/web/src/pages/editing-planner/EditingPlanner.css
@@ -6408,4 +6408,3 @@
   padding: 16px;
   text-align: center;
 }
-
diff --git a/tests/unit/test_generation_preview.py b/tests/unit/test_generation_preview.py
index ca05fca75..a2f5a0936 100755
--- a/tests/unit/test_generation_preview.py
+++ b/tests/unit/test_generation_preview.py
@@ -187,9 +187,8 @@ class TestCreatePreviewGenerationTaskRequest:
 
     def test_missing_template_id_raises(self):
         """缺少 template_id 报错"""
-        from pydantic import ValidationError
-
         from app.schemas.generation_task import CreatePreviewGenerationTaskRequest
+        from pydantic import ValidationError
 
         with pytest.raises(ValidationError, match="template_id"):
             CreatePreviewGenerationTaskRequest(
@@ -199,9 +198,8 @@ class TestCreatePreviewGenerationTaskRequest:
 
     def test_missing_template_id_not_provided_raises(self):
         """完全不提供 template_id 报错"""
-        from pydantic import ValidationError
-
         from app.schemas.generation_task import CreatePreviewGenerationTaskRequest
+        from pydantic import ValidationError
 
         with pytest.raises(ValidationError):
             CreatePreviewGenerationTaskRequest(
@@ -210,9 +208,8 @@ class TestCreatePreviewGenerationTaskRequest:
 
     def test_empty_asset_ids_raises(self):
         """asset_ids/title_ids/voice_ids 全空报错"""
-        from pydantic import ValidationError
-
         from app.schemas.generation_task import CreatePreviewGenerationTaskRequest
+        from pydantic import ValidationError
 
         with pytest.raises(ValidationError, match="asset_ids"):
             CreatePreviewGenerationTaskRequest(
@@ -562,20 +559,20 @@ class TestPreviewTaskStatusFlow:
 # ═══════════════════════════════════════════════════════════════════════════════
 
 from dataclasses import dataclass
-from unittest.mock import patch, PropertyMock
+from unittest.mock import PropertyMock, patch
 
 # 导入路由模块和被测函数
 from app.api.routes.generation_preview import (
+    PREVIEW_RESOLUTION,
     _to_preview_response,
     create_preview_generation_task,
     get_preview_generation_task,
-    PREVIEW_RESOLUTION,
 )
+from app.core.task_enqueue import GlobalQueueFull, UserPendingLimitExceeded
 from app.schemas.generation_task import (
     CreatePreviewGenerationTaskRequest,
     PreviewGenerationTaskResponse,
 )
-from app.core.task_enqueue import GlobalQueueFull, UserPendingLimitExceeded
 
 
 def _make_user(user_id="test_user_001"):