diff --git a/packages/domain/ass_subtitle_builder.py b/packages/domain/ass_subtitle_builder.py
index 86b632977..5011bc151 100755
--- a/packages/domain/ass_subtitle_builder.py
+++ b/packages/domain/ass_subtitle_builder.py
@@ -498,7 +498,9 @@ def build_ass_content(
         # 先 escape 特殊字符，再插入换行符 \N，避免顺序颠倒导致 \N 被转义
         title_font_size = int(title_config.get("size", 36))
         safe_title_text_raw = escape_ass_text(title_text)
-        safe_title_text = _wrap_title_text(safe_title_text_raw, video_width, title_font_size, margin_l=_margin_side, margin_r=_margin_side)
+        safe_title_text = _wrap_title_text(
+            safe_title_text_raw, video_width, title_font_size, margin_l=_margin_side, margin_r=_margin_side
+        )
 
         # #2001 逐行样式覆盖：按 line_overrides 在每行前注入 ASS inline override 标签
         # line_overrides 透传自前端爆款标题面板，SubtitleStyle.from_dict 已做安全过滤
diff --git a/packages/domain/video_filter_builder.py b/packages/domain/video_filter_builder.py
index 6e67423e5..b0b1068fd 100755
--- a/packages/domain/video_filter_builder.py
+++ b/packages/domain/video_filter_builder.py
@@ -448,7 +448,6 @@ def _scale_title_len(value, output_width: int):
     return int(round(v * (output_width / TITLE_DRAWTEXT_REF_WIDTH)))
 
 
-
 def _escape_drawtext_text(text: str) -> str:
     """转义 drawtext 特殊字符。