diff --git a/apps/api/app/services/edit_plan_service.py b/apps/api/app/services/edit_plan_service.py
index 86e060052..30c95e54e 100755
--- a/apps/api/app/services/edit_plan_service.py
+++ b/apps/api/app/services/edit_plan_service.py
@@ -523,9 +523,7 @@ class EditPlanService:
         plan_id = clip.plan_id
 
         if split_time <= 0 or split_time >= clip.duration:
-            raise ValueError(
-                f"分割时间必须在 (0, {clip.duration:.3f}) 范围内，当前: {split_time}"
-            )
+            raise ValueError(f"分割时间必须在 (0, {clip.duration:.3f}) 范围内，当前: {split_time}")
 
         self._auto_resume_editing(plan_id)
 
@@ -620,9 +618,7 @@ class EditPlanService:
         # 校验：order 连续
         for i in range(1, len(clips)):
             if clips[i].order != clips[i - 1].order + 1:
-                raise ValueError(
-                    f"片段不连续：order {clips[i-1].order} → {clips[i].order}"
-                )
+                raise ValueError(f"片段不连续：order {clips[i-1].order} → {clips[i].order}")
 
         # 校验：类型一致
         clip_type = clips[0].clip_type
diff --git a/tests/unit/test_edit_plan_service.py b/tests/unit/test_edit_plan_service.py
index 38b964471..c67cabb77 100755
--- a/tests/unit/test_edit_plan_service.py
+++ b/tests/unit/test_edit_plan_service.py
@@ -835,9 +835,7 @@ class TestClipSplit:
         svc = _make_service()
         p = svc.create_plan("tpl-001", "测试计划")
         svc.transition_status(p.id, EditPlanStatus.EDITING)
-        clip = svc.create_clip(
-            p.id, "main", 0, duration=10.0, asset_id="asset-001"
-        )
+        clip = svc.create_clip(p.id, "main", 0, duration=10.0, asset_id="asset-001")
 
         result = svc.split_clip(clip.id, 3.0)
 
@@ -956,12 +954,8 @@ class TestClipMerge:
         svc = _make_service()
         p = svc.create_plan("tpl-001", "测试计划")
         svc.transition_status(p.id, EditPlanStatus.EDITING)
-        clip1 = svc.create_clip(
-            p.id, "main", 0, duration=5.0, config={"trim_end": 2.0, "filter": "vivid"}
-        )
-        clip2 = svc.create_clip(
-            p.id, "main", 1, duration=5.0, config={"trim_start": 1.0}
-        )
+        clip1 = svc.create_clip(p.id, "main", 0, duration=5.0, config={"trim_end": 2.0, "filter": "vivid"})
+        clip2 = svc.create_clip(p.id, "main", 1, duration=5.0, config={"trim_start": 1.0})
 
         merged = svc.merge_clips([clip1.id, clip2.id])