diff --git a/docutranslate/translator/ai_translator/docx_translator.py b/docutranslate/translator/ai_translator/docx_translator.py
index 56b509c..5050efb 100644
--- a/docutranslate/translator/ai_translator/docx_translator.py
+++ b/docutranslate/translator/ai_translator/docx_translator.py
@@ -1,20 +1,16 @@
 import asyncio
-from dataclasses import dataclass, field
+from dataclasses import dataclass
 from io import BytesIO
 from typing import Self, Literal, List, Dict, Any, Tuple
 
 import docx
 from docx.document import Document as DocumentObject
-from docx.oxml.ns import nsdecls
-from docx.oxml import OxmlElement
-from docx.table import _Cell, Table
 from docx.text.paragraph import Paragraph
 from docx.text.run import Run
 
 from docutranslate.agents.segments_agent import SegmentsTranslateAgentConfig, SegmentsTranslateAgent
 from docutranslate.ir.document import Document
-from docutranslate.translator.ai_translator.base import AiTranslatorConfig
-from docutranslate.translator.base import Translator
+from docutranslate.translator.ai_translator.base import AiTranslatorConfig, AiTranslator
 
 
 def is_image_run(run: Run) -> bool:
@@ -32,7 +28,7 @@ class DocxTranslatorConfig(AiTranslatorConfig):
     separator: str = "\n"
 
 
-class DocxTranslator(Translator):
+class DocxTranslator(AiTranslator):
     """
     用于翻译 .docx 文件的翻译器。
     此版本经过优化，可以处理图文混排的段落而不会丢失图片。
@@ -188,4 +184,4 @@ class DocxTranslator(Translator):
         # 将翻译结果写回文档
         document.content = await asyncio.to_thread(self._after_translate, doc, elements_to_translate, translated_texts,
                                                    original_texts)
-        return self
\ No newline at end of file
+        return self
diff --git a/docutranslate/translator/ai_translator/epub_translator.py b/docutranslate/translator/ai_translator/epub_translator.py
index da5d4ee..3381f96 100644
--- a/docutranslate/translator/ai_translator/epub_translator.py
+++ b/docutranslate/translator/ai_translator/epub_translator.py
@@ -1,7 +1,7 @@
 import asyncio
 import os
-import zipfile
 import xml.etree.ElementTree as ET
+import zipfile
 from dataclasses import dataclass
 from io import BytesIO
 from typing import Self, Literal, List, Dict, Any
@@ -10,8 +10,7 @@ from bs4 import BeautifulSoup
 
 from docutranslate.agents.segments_agent import SegmentsTranslateAgentConfig, SegmentsTranslateAgent
 from docutranslate.ir.document import Document
-from docutranslate.translator.ai_translator.base import AiTranslatorConfig
-from docutranslate.translator.base import Translator
+from docutranslate.translator.ai_translator.base import AiTranslatorConfig, AiTranslator
 
 
 @dataclass
@@ -20,7 +19,7 @@ class EpubTranslatorConfig(AiTranslatorConfig):
     separator: str = "\n"
 
 
-class EpubTranslator(Translator):
+class EpubTranslator(AiTranslator):
     """
     一个用于翻译 EPUB 文件中内容的翻译器。
     此版本使用内置的 `zipfile` 和 `xml` 库，不依赖 `ebooklib`。
@@ -197,4 +196,4 @@ class EpubTranslator(Translator):
         document.content = await asyncio.to_thread(
             self._after_translate, all_files, items_to_translate, translated_texts, original_texts
         )
-        return self
\ No newline at end of file
+        return self
diff --git a/docutranslate/translator/ai_translator/html_translator.py b/docutranslate/translator/ai_translator/html_translator.py
index a6a867f..804746b 100644
--- a/docutranslate/translator/ai_translator/html_translator.py
+++ b/docutranslate/translator/ai_translator/html_translator.py
@@ -2,12 +2,11 @@ import asyncio
 from dataclasses import dataclass
 from typing import Self, Literal, Set, Dict, List, Tuple
 
-from bs4 import BeautifulSoup, NavigableString, Tag, Comment
+from bs4 import BeautifulSoup, NavigableString, Comment
 
 from docutranslate.agents.segments_agent import SegmentsTranslateAgentConfig, SegmentsTranslateAgent
 from docutranslate.ir.document import Document
-from docutranslate.translator.ai_translator.base import AiTranslatorConfig
-from docutranslate.translator.base import Translator
+from docutranslate.translator.ai_translator.base import AiTranslatorConfig, AiTranslator
 
 # --- 规则定义 ---
 
@@ -16,16 +15,16 @@ from docutranslate.translator.base import Translator
 # 在预处理阶段，这些标签及其所有子元素将被直接从文档中移除，以确保它们不会被意外修改。
 NON_TRANSLATABLE_TAGS: Set[str] = {
     'script',  # JavaScript代码
-    'style',   # CSS样式
-    'pre',     # 预格式化文本，通常用于代码块
-    'code',    # 行内代码
-    'kbd',     # 键盘输入
-    'samp',    # 示例输出
-    'var',     # 变量
-    'noscript',# script未启用时的内容
-    'meta',    # 元数据
-    'link',    # 外部资源链接
-    'head',    # 文档头部，通常不包含可见的可翻译内容
+    'style',  # CSS样式
+    'pre',  # 预格式化文本，通常用于代码块
+    'code',  # 行内代码
+    'kbd',  # 键盘输入
+    'samp',  # 示例输出
+    'var',  # 变量
+    'noscript',  # script未启用时的内容
+    'meta',  # 元数据
+    'link',  # 外部资源链接
+    'head',  # 文档头部，通常不包含可见的可翻译内容
 }
 
 # 2. 可翻译标签（白名单）
@@ -73,7 +72,7 @@ class HtmlTranslatorConfig(AiTranslatorConfig):
     separator: str = " "  # HTML中用空格作为默认分隔符可能更合适
 
 
-class HtmlTranslator(Translator):
+class HtmlTranslator(AiTranslator):
     """
     一个用于翻译 HTML 文件内容的翻译器。
     它采用黑白名单结合的策略，以最大程度地保留页面样式和功能：
@@ -133,7 +132,7 @@ class HtmlTranslator(Translator):
 
             # --- 2b. 翻译安全标签内的安全属性 ---
             attributes_to_check = SAFE_ATTRIBUTES.get(tag.name, []) + SAFE_ATTRIBUTES.get('*', [])
-            for attr in set(attributes_to_check): # 使用set去重
+            for attr in set(attributes_to_check):  # 使用set去重
                 if tag.has_attr(attr) and tag[attr].strip():
                     value = tag[attr]
                     translatable_items.append({'type': 'attribute', 'tag': tag, 'attribute': attr})
@@ -171,7 +170,7 @@ class HtmlTranslator(Translator):
                 new_content = translated_text + self.separator + original_text
             else:
                 self.logger.error(f"不正确的HtmlTranslatorConfig参数: insert_mode='{self.insert_mode}'")
-                new_content = original_text # 出错时恢复原文
+                new_content = original_text  # 出错时恢复原文
 
             # 根据类型将内容写回
             if item['type'] == 'node':
@@ -217,4 +216,4 @@ class HtmlTranslator(Translator):
         document.content = await asyncio.to_thread(
             self._after_translate, soup, translatable_items, translated_texts, original_texts
         )
-        return self
\ No newline at end of file
+        return self
diff --git a/docutranslate/translator/ai_translator/json_translator.py b/docutranslate/translator/ai_translator/json_translator.py
index 4c14b93..e1fa455 100644
--- a/docutranslate/translator/ai_translator/json_translator.py
+++ b/docutranslate/translator/ai_translator/json_translator.py
@@ -6,8 +6,7 @@ from jsonpath_ng.ext import parse
 
 from docutranslate.agents.segments_agent import SegmentsTranslateAgentConfig, SegmentsTranslateAgent
 from docutranslate.ir.document import Document
-from docutranslate.translator.ai_translator.base import AiTranslatorConfig
-from docutranslate.translator.base import Translator
+from docutranslate.translator.ai_translator.base import AiTranslatorConfig, AiTranslator
 
 
 @dataclass
@@ -15,7 +14,7 @@ class JsonTranslatorConfig(AiTranslatorConfig):
     json_paths: list[str]
 
 
-class JsonTranslator(Translator):
+class JsonTranslator(AiTranslator):
     def __init__(self, config: JsonTranslatorConfig):
         super().__init__(config=config)
         self.chunk_size = config.chunk_size
diff --git a/docutranslate/translator/ai_translator/md_translator.py b/docutranslate/translator/ai_translator/md_translator.py
index d69efb7..fbbe4cc 100644
--- a/docutranslate/translator/ai_translator/md_translator.py
+++ b/docutranslate/translator/ai_translator/md_translator.py
@@ -6,8 +6,7 @@ from docutranslate.agents import MDTranslateAgent
 from docutranslate.agents.markdown_agent import MDTranslateAgentConfig
 from docutranslate.context.md_mask_context import MDMaskUrisContext
 from docutranslate.ir.markdown_document import MarkdownDocument
-from docutranslate.translator.ai_translator.base import AiTranslatorConfig
-from docutranslate.translator.base import Translator
+from docutranslate.translator.ai_translator.base import AiTranslatorConfig, AiTranslator
 from docutranslate.utils.markdown_splitter import split_markdown_text, join_markdown_texts
 
 
@@ -16,7 +15,7 @@ class MDTranslatorConfig(AiTranslatorConfig):
     ...
 
 
-class MDTranslator(Translator):
+class MDTranslator(AiTranslator):
     def __init__(self, config: MDTranslatorConfig):
         super().__init__(config=config)
         self.chunk_size = config.chunk_size
@@ -64,4 +63,4 @@ class MDTranslator(Translator):
 
             await asyncio.to_thread(run)
         self.logger.info("翻译完成")
-        return self
\ No newline at end of file
+        return self
diff --git a/docutranslate/translator/ai_translator/srt_translator.py b/docutranslate/translator/ai_translator/srt_translator.py
index 5606538..6d12a7f 100644
--- a/docutranslate/translator/ai_translator/srt_translator.py
+++ b/docutranslate/translator/ai_translator/srt_translator.py
@@ -6,8 +6,7 @@ import srt  # 导入srt库来处理字幕文件
 
 from docutranslate.agents.segments_agent import SegmentsTranslateAgentConfig, SegmentsTranslateAgent
 from docutranslate.ir.document import Document
-from docutranslate.translator.ai_translator.base import AiTranslatorConfig
-from docutranslate.translator.base import Translator
+from docutranslate.translator.ai_translator.base import AiTranslatorConfig, AiTranslator
 
 
 @dataclass
@@ -16,7 +15,7 @@ class SrtTranslatorConfig(AiTranslatorConfig):
     separator: str = "\n"
 
 
-class SrtTranslator(Translator):
+class SrtTranslator(AiTranslator):
     """
     一个用于翻译 SRT (.srt) 字幕文件的翻译器。
     它会提取每个字幕块的文本内容，进行翻译，然后根据配置将译文写回。
@@ -134,4 +133,4 @@ class SrtTranslator(Translator):
         document.content = await asyncio.to_thread(
             self._after_translate, subtitles, translated_texts, original_texts
         )
-        return self
\ No newline at end of file
+        return self
diff --git a/docutranslate/translator/ai_translator/txt_translator.py b/docutranslate/translator/ai_translator/txt_translator.py
index 243e13b..07a143e 100644
--- a/docutranslate/translator/ai_translator/txt_translator.py
+++ b/docutranslate/translator/ai_translator/txt_translator.py
@@ -3,8 +3,7 @@ from typing import Self
 
 from docutranslate.agents.txt_agent import TXTTranslateAgent, TXTTranslateAgentConfig
 from docutranslate.ir.document import Document
-from docutranslate.translator.ai_translator.base import AiTranslatorConfig
-from docutranslate.translator.base import Translator
+from docutranslate.translator.ai_translator.base import AiTranslatorConfig, AiTranslator
 from docutranslate.utils.markdown_splitter import split_markdown_text
 
 
@@ -13,7 +12,7 @@ class TXTTranslatorConfig(AiTranslatorConfig):
     ...
 
 
-class TXTTranslator(Translator):
+class TXTTranslator(AiTranslator):
     def __init__(self, config: TXTTranslatorConfig):
         super().__init__(config=config)
         self.chunk_size = config.chunk_size
diff --git a/docutranslate/translator/ai_translator/xlsx_translator.py b/docutranslate/translator/ai_translator/xlsx_translator.py
index e7dfb07..e768da4 100644
--- a/docutranslate/translator/ai_translator/xlsx_translator.py
+++ b/docutranslate/translator/ai_translator/xlsx_translator.py
@@ -8,8 +8,7 @@ from openpyxl.cell import Cell
 
 from docutranslate.agents.segments_agent import SegmentsTranslateAgentConfig, SegmentsTranslateAgent
 from docutranslate.ir.document import Document
-from docutranslate.translator.ai_translator.base import AiTranslatorConfig
-from docutranslate.translator.base import Translator
+from docutranslate.translator.ai_translator.base import AiTranslatorConfig, AiTranslator
 
 
 @dataclass
@@ -23,7 +22,7 @@ class XlsxTranslatorConfig(AiTranslatorConfig):
     translate_regions: Optional[List[str]] = None
 
 
-class XlsxTranslator(Translator):
+class XlsxTranslator(AiTranslator):
     def __init__(self, config: XlsxTranslatorConfig):
         super().__init__(config=config)
         self.chunk_size = config.chunk_size