diff --git a/src/nonebot_plugin_parser/parsers/acfun/__init__.py b/src/nonebot_plugin_parser/parsers/acfun/__init__.py
index 33be974e..3061575a 100644
--- a/src/nonebot_plugin_parser/parsers/acfun/__init__.py
+++ b/src/nonebot_plugin_parser/parsers/acfun/__init__.py
@@ -139,10 +139,8 @@ async def _get_m3u8_slices(self, m3u8_url: str):
             response = await client.get(m3u8_url)
             response.raise_for_status()
 
-        slices_text = response.text
-
         slices: list[str] = []
-        for line in slices_text.splitlines():
+        for line in response.text.splitlines():
             line = line.strip()
             if not line or line.startswith("#"):
                 continue
diff --git a/src/nonebot_plugin_parser/parsers/acfun/video.py b/src/nonebot_plugin_parser/parsers/acfun/video.py
index 6cd8d64f..b9b58fed 100644
--- a/src/nonebot_plugin_parser/parsers/acfun/video.py
+++ b/src/nonebot_plugin_parser/parsers/acfun/video.py
@@ -9,13 +9,8 @@ class User(Struct):
 
 class Representation(Struct):
     url: str
-    m3u8Slice: str
     qualityType: str
 
-    @property
-    def m3u8_slice(self) -> str:
-        return self.m3u8Slice.replace("\\\\n", "\n")
-
 
 class AdaptationSet(Struct):
     representation: list[Representation]
diff --git a/src/nonebot_plugin_parser/renders/common.py b/src/nonebot_plugin_parser/renders/common.py
index fff98147..f3bf9412 100644
--- a/src/nonebot_plugin_parser/renders/common.py
+++ b/src/nonebot_plugin_parser/renders/common.py
@@ -128,9 +128,15 @@ class FontSet:
 
     @classmethod
     def new(cls, font_path: Path):
+        # 预加载字体文件到内存,避免持续占用文件句柄
+        with open(font_path, "rb") as f:
+            font_data = BytesIO(f.read())
+
         font_infos: dict[str, FontInfo] = {}
         for name, size, fill in cls._FONT_INFOS:
-            font = ImageFont.truetype(font_path, size)
+            # 每次使用都需要 seek(0) 重置指针,因为多个 truetype 调用共享同一个 BytesIO 对象
+            font_data.seek(0)
+            font = ImageFont.truetype(font_data, size)
             height = get_font_height(font)
             font_infos[name] = FontInfo(
                 font=font,