diff --git a/src/content/components/file-selector-panel.ts b/src/content/components/file-selector-panel.ts
index 664fd1a..ae250d0 100644
--- a/src/content/components/file-selector-panel.ts
+++ b/src/content/components/file-selector-panel.ts
@@ -250,10 +250,12 @@ export class FileSelectorPanel extends LitElement {
 
     const videoExts = ['.mp4', '.avi', '.mkv', '.mov', '.wmv', '.flv', '.webm', '.m4v'];
     const imageExts = ['.jpg', '.jpeg', '.png', '.gif', '.bmp', '.svg', '.webp', '.ico'];
+    const audioExts = ['.mp3', '.wav', '.flac', '.aac', '.m4a', '.ogg', '.opus', '.wma'];
     const docExts = ['.pdf', '.doc', '.docx', '.xls', '.xlsx', '.ppt', '.pptx', '.txt', '.md'];
 
     if (videoExts.includes(lowerExt)) return 'video';
     if (imageExts.includes(lowerExt)) return 'image';
+    if (audioExts.includes(lowerExt)) return 'audio';
     if (docExts.includes(lowerExt)) return 'document';
     return 'other';
   }
diff --git a/src/content/components/toolbar.ts b/src/content/components/toolbar.ts
index cd59cf8..3fdbc23 100644
--- a/src/content/components/toolbar.ts
+++ b/src/content/components/toolbar.ts
@@ -144,6 +144,7 @@ export class Toolbar extends LitElement {
               <option value="all">${I18nService.t('all_types')}</option>
               <option value="video">${I18nService.t('type_video')}</option>
               <option value="image">${I18nService.t('type_image')}</option>
+              <option value="audio">${I18nService.t('type_audio')}</option>
               <option value="document">${I18nService.t('type_document')}</option>
               <option value="other">${I18nService.t('type_other')}</option>
             </select>
diff --git a/src/locales/en.json b/src/locales/en.json
index 90c3136..7ece030 100644
--- a/src/locales/en.json
+++ b/src/locales/en.json
@@ -23,6 +23,7 @@
   "all_types": "All Types",
   "type_video": "Video",
   "type_image": "Image",
+  "type_audio": "Audio",
   "type_document": "Document",
   "type_other": "Other",
   "selected_files_count": "Selected $1 / $2 files",
diff --git a/src/locales/zh_CN.json b/src/locales/zh_CN.json
index 46b11b5..9df84ba 100644
--- a/src/locales/zh_CN.json
+++ b/src/locales/zh_CN.json
@@ -23,6 +23,7 @@
   "all_types": "全部类型",
   "type_video": "视频",
   "type_image": "图片",
+  "type_audio": "音频",
   "type_document": "文档",
   "type_other": "其他",
   "selected_files_count": "已选择 $1 / $2 个文件",
diff --git a/src/locales/zh_TW.json b/src/locales/zh_TW.json
index 69cdf32..e5504f0 100644
--- a/src/locales/zh_TW.json
+++ b/src/locales/zh_TW.json
@@ -23,6 +23,7 @@
   "all_types": "所有類型",
   "type_video": "影片",
   "type_image": "圖片",
+  "type_audio": "音訊",
   "type_document": "文件",
   "type_other": "其他",
   "selected_files_count": "已選擇 $1 / $2 個檔案",
diff --git a/src/shared/version.ts b/src/shared/version.ts
index 869a83b..124d00d 100644
--- a/src/shared/version.ts
+++ b/src/shared/version.ts
@@ -10,7 +10,7 @@
  * 1. Edit version in package.json
  * 2. Run: npm run sync:version (or automatically via prebuild/predev)
  *
- * Generated at: 2025-12-30T08:01:25.159Z
+ * Generated at: 2025-12-30T08:23:44.405Z
  */
 
 /**
diff --git a/src/types/file-selector.ts b/src/types/file-selector.ts
index 9b97902..f303ec9 100644
--- a/src/types/file-selector.ts
+++ b/src/types/file-selector.ts
@@ -4,7 +4,7 @@ import { RuleConfig } from './rule';
 /**
  * File type categories for filtering
  */
-export type FileType = 'video' | 'image' | 'document' | 'other';
+export type FileType = 'video' | 'image' | 'audio' | 'document' | 'other';
 
 /**
  * Preview item for the preview panel