diff --git a/App.tsx b/App.tsx
index 0f8bdfd..137f936 100644
--- a/App.tsx
+++ b/App.tsx
@@ -15,13 +15,17 @@ import { Song, GenerationParams, View, Playlist } from './types';
 import { generateApi, songsApi, playlistsApi, getAudioUrl } from './services/api';
 import { useAuth } from './context/AuthContext';
 import { useResponsive } from './context/ResponsiveContext';
+import { I18nProvider, useI18n } from './context/I18nContext';
 import { List } from 'lucide-react';
 import { PlaylistDetail } from './components/PlaylistDetail';
 import { Toast, ToastType } from './components/Toast';
 import { SearchPage } from './components/SearchPage';
 
 
-export default function App() {
+function AppContent() {
+  // i18n
+  const { t } = useI18n();
+
   // Responsive
   const { isMobile, isDesktop } = useResponsive();
 
@@ -464,9 +468,9 @@ export default function App() {
       if (audio.error && audio.error.code !== 1) {
         console.error("Audio playback error:", audio.error);
         if (audio.error.code === 4) {
-          showToast('This song is no longer available.', 'error');
+          showToast(t('songNotAvailable'), 'error');
         } else {
-          showToast('Unable to play this song.', 'error');
+          showToast(t('unableToPlay'), 'error');
         }
       }
       setIsPlaying(false);
@@ -502,7 +506,7 @@ export default function App() {
         if (err instanceof Error && err.name !== 'AbortError') {
           console.error("Playback failed:", err);
           if (err.name === 'NotSupportedError') {
-            showToast('This song is no longer available.', 'error');
+            showToast(t('songNotAvailable'), 'error');
           }
           setIsPlaying(false);
         }
@@ -631,7 +635,7 @@ export default function App() {
         } else if (status.status === 'failed') {
           cleanupJob(jobId, tempId);
           console.error(`Job ${jobId} failed:`, status.error);
-          showToast(`Generation failed: ${status.error || 'Unknown error'}`, 'error');
+          showToast(`${t('generationFailed')}: ${status.error || 'Unknown error'}`, 'error');
         }
       } catch (pollError) {
         console.error(`Polling error for job ${jobId}:`, pollError);
@@ -646,7 +650,7 @@ export default function App() {
       if (activeJobsRef.current.has(jobId)) {
         console.warn(`Job ${jobId} timed out`);
         cleanupJob(jobId, tempId);
-        showToast('Generation timed out', 'error');
+        showToast(t('generationTimedOut'), 'error');
       }
     }, 600000);
   }, [token, cleanupJob, refreshSongsList]);
@@ -762,7 +766,7 @@ export default function App() {
       if (activeJobsRef.current.size === 0) {
         setIsGenerating(false);
       }
-      showToast('Generation failed. Please try again.', 'error');
+      showToast(t('generationFailed'), 'error');
     }
   };
 
@@ -946,10 +950,10 @@ export default function App() {
       // Remove from play queue if present
       setPlayQueue(prev => prev.filter(s => s.id !== song.id));
 
-      showToast('Song deleted successfully');
+      showToast(t('songDeleted'));
     } catch (error) {
       console.error('Failed to delete song:', error);
-      showToast('Failed to delete song', 'error');
+      showToast(t('failedToDeleteSong'), 'error');
     }
   };
 
@@ -1001,9 +1005,9 @@ export default function App() {
     }
 
     if (failed.length > 0) {
-      showToast(`Deleted ${succeeded.length}/${songsToDelete.length} songs`, 'error');
+      showToast(t('songsDeletedPartial').replace('{succeeded}', String(succeeded.length)).replace('{total}', String(songsToDelete.length)), 'error');
     } else {
-      showToast('Songs deleted successfully');
+      showToast(t('songsDeletedSuccess'));
     }
   };
 
@@ -1020,10 +1024,10 @@ export default function App() {
         throw new Error('Failed to delete upload');
       }
       setReferenceTracks(prev => prev.filter(track => track.id !== trackId));
-      showToast('Upload deleted successfully');
+      showToast(t('songDeleted'));
     } catch (error) {
       console.error('Failed to delete upload:', error);
-      showToast('Failed to delete upload', 'error');
+      showToast(t('failedToDeleteSong'), 'error');
     }
   };
 
@@ -1038,10 +1042,10 @@ export default function App() {
         setSongToAddToPlaylist(null);
         playlistsApi.getMyPlaylists(token).then(r => setPlaylists(r.playlists));
       }
-      showToast('Playlist created successfully!');
+      showToast(t('playlistCreated'));
     } catch (error) {
       console.error('Create playlist error:', error);
-      showToast('Failed to create playlist', 'error');
+      showToast(t('failedToCreatePlaylist'), 'error');
     }
   };
 
@@ -1055,11 +1059,11 @@ export default function App() {
     try {
       await playlistsApi.addSong(playlistId, songToAddToPlaylist.id, token);
       setSongToAddToPlaylist(null);
-      showToast('Song added to playlist');
+      showToast(t('songAddedToPlaylist'));
       playlistsApi.getMyPlaylists(token).then(r => setPlaylists(r.playlists));
     } catch (error) {
       console.error('Add song error:', error);
-      showToast('Failed to add song to playlist', 'error');
+      showToast(t('failedToAddSong'), 'error');
     }
   };
 
@@ -1286,7 +1290,7 @@ export default function App() {
                 onClick={() => setMobileShowList(!mobileShowList)}
                 className="bg-zinc-800 text-white px-4 py-2 rounded-full shadow-lg border border-white/10 flex items-center gap-2 text-sm font-bold"
               >
-                {mobileShowList ? 'Create Song' : 'View List'}
+                {mobileShowList ? t('createSong') : t('viewList')}
                 <List size={16} />
               </button>
             </div>
@@ -1415,3 +1419,11 @@ export default function App() {
     </div>
   );
 }
+
+export default function App() {
+  return (
+    <I18nProvider>
+      <AppContent />
+    </I18nProvider>
+  );
+}
diff --git a/I18N_USAGE.md b/I18N_USAGE.md
new file mode 100644
index 0000000..e362ecb
--- /dev/null
+++ b/I18N_USAGE.md
@@ -0,0 +1,61 @@
+# ACE-Step UI — Internationalization Guide
+
+## Overview
+
+The project supports 4 languages: English (default), Chinese, Japanese, and Korean.
+
+## Architecture
+
+```
+ace-step-ui/
+├── i18n/
+│   └── translations.ts          # All translation strings
+├── context/
+│   └── I18nContext.tsx          # React context + useI18n hook
+└── components/                   # i18n-enabled components
+```
+
+## Usage
+
+### 1. Use translations in a component
+
+```tsx
+import { useI18n } from '../context/I18nContext';
+
+function YourComponent() {
+  const { t } = useI18n();
+  return <div>{t('yourTranslationKey')}</div>;
+}
+```
+
+### 2. Switch language
+
+Users can switch language in Settings. Programmatically:
+
+```tsx
+const { language, setLanguage } = useI18n();
+setLanguage('en'); // 'en' | 'zh' | 'ja' | 'ko'
+```
+
+### 3. Add a new translation key
+
+Add the key to all 4 languages in `i18n/translations.ts`:
+
+```typescript
+export const translations = {
+  en: { yourNewKey: 'English text' },
+  zh: { yourNewKey: '中文文本' },
+  ja: { yourNewKey: '日本語テキスト' },
+  ko: { yourNewKey: '한국어 텍스트' },
+};
+```
+
+## Language Persistence
+
+The selected language is stored in `localStorage` and restored on next visit. Default is English.
+
+## Notes
+
+- All keys must exist in every language object
+- TypeScript's `TranslationKey` type enforces key safety
+- If a key is missing, the raw key name is returned as fallback
diff --git a/components/SettingsModal.tsx b/components/SettingsModal.tsx
index 0f61b8c..e884e1d 100644
--- a/components/SettingsModal.tsx
+++ b/components/SettingsModal.tsx
@@ -1,6 +1,7 @@
 import React, { useState } from 'react';
-import { X, User as UserIcon, Palette, Info, Edit3, ExternalLink, Github } from 'lucide-react';
+import { X, User as UserIcon, Palette, Info, Edit3, ExternalLink, Globe, ChevronDown, Github } from 'lucide-react';
 import { useAuth } from '../context/AuthContext';
+import { useI18n } from '../context/I18nContext';
 import { EditProfileModal } from './EditProfileModal';
 
 interface SettingsModalProps {
@@ -13,6 +14,7 @@ interface SettingsModalProps {
 
 export const SettingsModal: React.FC<SettingsModalProps> = ({ isOpen, onClose, theme, onToggleTheme, onNavigateToProfile }) => {
     const { user } = useAuth();
+    const { t, language, setLanguage } = useI18n();
     const [isEditProfileOpen, setIsEditProfileOpen] = useState(false);
 
     if (!isOpen || !user) {
@@ -29,14 +31,14 @@ export const SettingsModal: React.FC<SettingsModalProps> = ({ isOpen, onClose, t
     }
 
     return (
-        <div className="fixed inset-0 bg-black/50 z-50 flex items-center justify-center p-4" onClick={onClose}>
+        <div className="fixed inset-0 bg-black/50 z-[60] flex items-center justify-center p-4" onClick={onClose}>
             <div
                 className="bg-white dark:bg-zinc-900 rounded-2xl shadow-2xl max-w-2xl w-full max-h-[90vh] overflow-y-auto"
                 onClick={(e) => e.stopPropagation()}
             >
                 {/* Header */}
                 <div className="flex items-center justify-between p-6 border-b border-zinc-200 dark:border-white/5">
-                    <h2 className="text-2xl font-bold text-zinc-900 dark:text-white">Settings</h2>
+                    <h2 className="text-2xl font-bold text-zinc-900 dark:text-white">{t('settings')}</h2>
                     <button
                         onClick={onClose}
                         className="p-2 hover:bg-zinc-100 dark:hover:bg-white/5 rounded-full transition-colors"
@@ -59,7 +61,7 @@ export const SettingsModal: React.FC<SettingsModalProps> = ({ isOpen, onClose, t
                             <div className="flex-1">
                                 <h3 className="text-xl font-bold text-zinc-900 dark:text-white">@{user.username}</h3>
                                 <p className="text-xs text-zinc-400 dark:text-zinc-500 mt-1">
-                                    Member since {new Date(user.createdAt).toLocaleDateString('en-US', { month: 'long', year: 'numeric' })}
+                                    {t('memberSince')} {new Date(user.createdAt).toLocaleDateString(language === 'zh' ? 'zh-CN' : 'en-US', { month: 'long', year: 'numeric' })}
                                 </p>
                             </div>
                             <div className="flex gap-2">
@@ -71,7 +73,7 @@ export const SettingsModal: React.FC<SettingsModalProps> = ({ isOpen, onClose, t
                                     className="flex items-center gap-2 px-4 py-2 bg-indigo-600 text-white rounded-lg text-sm font-medium hover:bg-indigo-700 transition-colors"
                                 >
                                     <Edit3 size={16} />
-                                    Edit Profile
+                                    {t('editProfile')}
                                 </button>
                                 <button
                                     onClick={() => {
@@ -81,7 +83,7 @@ export const SettingsModal: React.FC<SettingsModalProps> = ({ isOpen, onClose, t
                                     className="flex items-center gap-2 px-4 py-2 bg-zinc-200 dark:bg-zinc-700 text-zinc-900 dark:text-white rounded-lg text-sm font-medium hover:bg-zinc-300 dark:hover:bg-zinc-600 transition-colors"
                                 >
                                     <ExternalLink size={16} />
-                                    View Profile
+                                    {t('viewProfile')}
                                 </button>
                             </div>
                         </div>
@@ -91,21 +93,47 @@ export const SettingsModal: React.FC<SettingsModalProps> = ({ isOpen, onClose, t
                     <div className="space-y-4">
                         <div className="flex items-center gap-2 text-zinc-900 dark:text-white">
                             <UserIcon size={20} />
-                            <h3 className="font-semibold">Account</h3>
+                            <h3 className="font-semibold">{t('account')}</h3>
                         </div>
                         <div className="pl-7 space-y-3">
                             <div>
-                                <label className="text-sm text-zinc-500 dark:text-zinc-400">Username</label>
+                                <label className="text-sm text-zinc-500 dark:text-zinc-400">{t('username')}</label>
                                 <p className="text-zinc-900 dark:text-white font-medium">@{user.username}</p>
                             </div>
                         </div>
                     </div>
 
+                    {/* Language Section */}
+                    <div className="space-y-4">
+                        <div className="flex items-center gap-2 text-zinc-900 dark:text-white">
+                            <Globe size={20} />
+                            <h3 className="font-semibold">{t('language')}</h3>
+                        </div>
+                        <div className="pl-7 space-y-3">
+                            <div className="relative">
+                                <select
+                                    value={language}
+                                    onChange={(e) => setLanguage(e.target.value as 'en' | 'zh' | 'ja' | 'ko')}
+                                    className="w-full appearance-none py-3 px-4 pr-10 rounded-lg border-2 border-zinc-300 dark:border-zinc-700 bg-white dark:bg-zinc-800 text-zinc-900 dark:text-white font-medium transition-colors hover:border-zinc-400 dark:hover:border-zinc-600 focus:outline-none focus:border-indigo-500 dark:focus:border-indigo-500 cursor-pointer"
+                                >
+                                    <option value="en">{t('english')}</option>
+                                    <option value="zh">{t('chinese')}</option>
+                                    <option value="ja">{t('japaneseLanguage')}</option>
+                                    <option value="ko">{t('koreanLanguage')}</option>
+                                </select>
+                                <ChevronDown
+                                    size={20}
+                                    className="absolute right-3 top-1/2 -translate-y-1/2 text-zinc-500 pointer-events-none"
+                                />
+                            </div>
+                        </div>
+                    </div>
+
                     {/* Theme Section */}
                     <div className="space-y-4">
                         <div className="flex items-center gap-2 text-zinc-900 dark:text-white">
                             <Palette size={20} />
-                            <h3 className="font-semibold">Appearance</h3>
+                            <h3 className="font-semibold">{t('appearance')}</h3>
                         </div>
                         <div className="pl-7 space-y-3">
                             <div className="flex gap-3">
@@ -116,7 +144,7 @@ export const SettingsModal: React.FC<SettingsModalProps> = ({ isOpen, onClose, t
                                             : 'border-zinc-300 dark:border-zinc-700 hover:border-zinc-400 dark:hover:border-zinc-600'
                                         }`}
                                 >
-                                    Light
+                                    {t('light')}
                                 </button>
                                 <button
                                     onClick={theme === 'light' ? onToggleTheme : undefined}
@@ -125,7 +153,7 @@ export const SettingsModal: React.FC<SettingsModalProps> = ({ isOpen, onClose, t
                                             : 'border-zinc-300 dark:border-zinc-700 hover:border-zinc-400 dark:hover:border-zinc-600'
                                         }`}
                                 >
-                                    Dark
+                                    {t('dark')}
                                 </button>
                             </div>
                         </div>
@@ -135,41 +163,70 @@ export const SettingsModal: React.FC<SettingsModalProps> = ({ isOpen, onClose, t
                     <div className="space-y-4">
                         <div className="flex items-center gap-2 text-zinc-900 dark:text-white">
                             <Info size={20} />
-                            <h3 className="font-semibold">About</h3>
+                            <h3 className="font-semibold">{t('about')}</h3>
                         </div>
                         <div className="pl-7 space-y-3 text-sm text-zinc-600 dark:text-zinc-400">
-                            <p>Version 1.0.0</p>
-                            <p>ACE-Step UI - Local AI Music Generator</p>
+                            <p>{t('version')} 2.0.0</p>
+                            <p>ACE-Step UI - {t('localAIMusicGenerator')}</p>
                             <p className="text-xs text-zinc-400 dark:text-zinc-500 mt-2">
-                                Powered by ACE-Step 1.5. Open source and free to use.
+                                {t('poweredBy')}
                             </p>
-                            <div className="pt-3 border-t border-zinc-200 dark:border-zinc-700/50 mt-4">
-                                <p className="text-zinc-900 dark:text-white font-medium mb-3">Created by Ambsd</p>
-                                <div className="flex flex-wrap gap-2">
-                                    <a
-                                        href="https://x.com/AmbsdOP"
-                                        target="_blank"
-                                        rel="noopener noreferrer"
-                                        className="inline-flex items-center gap-2 px-4 py-2 bg-black dark:bg-white text-white dark:text-black rounded-lg text-sm font-medium hover:bg-zinc-800 dark:hover:bg-zinc-200 transition-colors"
-                                    >
-                                        <svg viewBox="0 0 24 24" width="16" height="16" fill="currentColor">
-                                            <path d="M18.244 2.25h3.308l-7.227 8.26 8.502 11.24H16.17l-5.214-6.817L4.99 21.75H1.68l7.73-8.835L1.254 2.25H8.08l4.713 6.231zm-1.161 17.52h1.833L7.084 4.126H5.117z" />
-                                        </svg>
-                                        Follow @AmbsdOP
-                                    </a>
-                                    <a
-                                        href="https://github.com/fspecii/ace-step-ui"
-                                        target="_blank"
-                                        rel="noopener noreferrer"
-                                        className="inline-flex items-center gap-2 px-4 py-2 bg-zinc-800 dark:bg-zinc-700 text-white rounded-lg text-sm font-medium hover:bg-zinc-700 dark:hover:bg-zinc-600 transition-colors"
-                                    >
-                                        <Github size={16} />
-                                        GitHub Repo
-                                    </a>
+                            <div className="pt-3 border-t border-zinc-200 dark:border-zinc-700/50 mt-4 space-y-4">
+                                <div>
+                                    <p className="text-zinc-900 dark:text-white font-medium mb-2">{t('createdBy')}</p>
+                                    <div className="flex flex-wrap gap-2">
+                                        <a
+                                            href="https://x.com/AmbsdOP"
+                                            target="_blank"
+                                            rel="noopener noreferrer"
+                                            className="inline-flex items-center gap-2 px-4 py-2 bg-black dark:bg-white text-white dark:text-black rounded-lg text-sm font-medium hover:bg-zinc-800 dark:hover:bg-zinc-200 transition-colors"
+                                        >
+                                            <svg viewBox="0 0 24 24" width="16" height="16" fill="currentColor">
+                                                <path d="M18.244 2.25h3.308l-7.227 8.26 8.502 11.24H16.17l-5.214-6.817L4.99 21.75H1.68l7.73-8.835L1.254 2.25H8.08l4.713 6.231zm-1.161 17.52h1.833L7.084 4.126H5.117z" />
+                                            </svg>
+                                            {t('follow')} @AmbsdOP
+                                        </a>
+                                        <a
+                                            href="https://github.com/fspecii/ace-step-ui"
+                                            target="_blank"
+                                            rel="noopener noreferrer"
+                                            className="inline-flex items-center gap-2 px-4 py-2 bg-zinc-800 dark:bg-zinc-700 text-white rounded-lg text-sm font-medium hover:bg-zinc-700 dark:hover:bg-zinc-600 transition-colors"
+                                        >
+                                            <Github size={16} />
+                                            GitHub Repo
+                                        </a>
+                                    </div>
+                                    <p className="text-xs text-zinc-400 dark:text-zinc-500 mt-2">
+                                        Report issues or request features on GitHub
+                                    </p>
+                                </div>
+                                <div>
+                                    <p className="text-zinc-900 dark:text-white font-medium mb-2">{t('localizedBy')}</p>
+                                    <div className="flex flex-wrap gap-2">
+                                        <a
+                                            href="https://x.com/bdsqlsz"
+                                            target="_blank"
+                                            rel="noopener noreferrer"
+                                            className="inline-flex items-center gap-2 px-4 py-2 bg-black dark:bg-white text-white dark:text-black rounded-lg text-sm font-medium hover:bg-zinc-800 dark:hover:bg-zinc-200 transition-colors"
+                                        >
+                                            <svg viewBox="0 0 24 24" width="16" height="16" fill="currentColor">
+                                                <path d="M18.244 2.25h3.308l-7.227 8.26 8.502 11.24H16.17l-5.214-6.817L4.99 21.75H1.68l7.73-8.835L1.254 2.25H8.08l4.713 6.231zm-1.161 17.52h1.833L7.084 4.126H5.117z" />
+                                            </svg>
+                                            {t('follow')} @bdsqlsz
+                                        </a>
+                                        <a
+                                            href="https://space.bilibili.com/219296"
+                                            target="_blank"
+                                            rel="noopener noreferrer"
+                                            className="inline-flex items-center gap-2 px-4 py-2 bg-[#00A1D6] text-white rounded-lg text-sm font-medium hover:bg-[#0090C0] transition-colors"
+                                        >
+                                            <svg viewBox="0 0 24 24" width="16" height="16" fill="currentColor">
+                                                <path d="M17.813 4.653h.854c1.51.054 2.769.578 3.773 1.574 1.004.995 1.524 2.249 1.56 3.76v7.36c-.036 1.51-.556 2.769-1.56 3.773s-2.262 1.524-3.773 1.56H5.333c-1.51-.036-2.769-.556-3.773-1.56S.036 18.858 0 17.347v-7.36c.036-1.511.556-2.765 1.56-3.76 1.004-.996 2.262-1.52 3.773-1.574h.774l-1.174-1.12a1.234 1.234 0 0 1-.373-.906c0-.356.124-.658.373-.907l.027-.027c.267-.249.573-.373.92-.373.347 0 .653.124.92.373L9.653 4.44c.071.071.134.142.187.213h4.267a.836.836 0 0 1 .16-.213l2.853-2.747c.267-.249.573-.373.92-.373.347 0 .662.151.929.4.267.249.391.551.391.907 0 .355-.124.657-.373.906zM5.333 7.24c-.746.018-1.373.276-1.88.773-.506.498-.769 1.13-.786 1.894v7.52c.017.764.28 1.395.786 1.893.507.498 1.134.756 1.88.773h13.334c.746-.017 1.373-.275 1.88-.773.506-.498.769-1.129.786-1.893v-7.52c-.017-.765-.28-1.396-.786-1.894-.507-.497-1.134-.755-1.88-.773zM8 11.107c.373 0 .684.124.933.373.25.249.383.569.4.96v1.173c-.017.391-.15.711-.4.96-.249.25-.56.374-.933.374s-.684-.125-.933-.374c-.25-.249-.383-.569-.4-.96V12.44c0-.373.129-.689.386-.947.258-.257.574-.386.947-.386zm8 0c.373 0 .684.124.933.373.25.249.383.569.4.96v1.173c-.017.391-.15.711-.4.96-.249.25-.56.374-.933.374s-.684-.125-.933-.374c-.25-.249-.383-.569-.4-.96V12.44c.017-.391.15-.711.4-.96.249-.249.56-.373.933-.373Z"/>
+                                            </svg>
+                                            {t('follow')} 青龙圣者
+                                        </a>
+                                    </div>
                                 </div>
-                                <p className="text-xs text-zinc-400 dark:text-zinc-500 mt-3">
-                                    Report issues or request features on GitHub
-                                </p>
                             </div>
                         </div>
                     </div>
@@ -181,7 +238,7 @@ export const SettingsModal: React.FC<SettingsModalProps> = ({ isOpen, onClose, t
                         onClick={onClose}
                         className="px-6 py-2 bg-zinc-900 dark:bg-white text-white dark:text-black font-semibold rounded-lg hover:bg-zinc-800 dark:hover:bg-zinc-200 transition-colors"
                     >
-                        Done
+                        {t('done')}
                     </button>
                 </div>
             </div>
diff --git a/context/I18nContext.tsx b/context/I18nContext.tsx
new file mode 100644
index 0000000..f8f1065
--- /dev/null
+++ b/context/I18nContext.tsx
@@ -0,0 +1,40 @@
+import React, { createContext, useContext, useState, ReactNode } from 'react';
+import { translations, Language, TranslationKey } from '../i18n/translations';
+
+interface I18nContextType {
+  language: Language;
+  setLanguage: (lang: Language) => void;
+  t: (key: TranslationKey) => string;
+}
+
+const I18nContext = createContext<I18nContextType | undefined>(undefined);
+
+export const I18nProvider: React.FC<{ children: ReactNode }> = ({ children }) => {
+  const [language, setLanguage] = useState<Language>(() => {
+    const stored = localStorage.getItem('language') as Language;
+    return stored === 'zh' || stored === 'en' || stored === 'ja' || stored === 'ko' ? stored : 'en';
+  });
+
+  const handleSetLanguage = (lang: Language) => {
+    setLanguage(lang);
+    localStorage.setItem('language', lang);
+  };
+
+  const t = (key: TranslationKey): string => {
+    return translations[language][key] || key;
+  };
+
+  return (
+    <I18nContext.Provider value={{ language, setLanguage: handleSetLanguage, t }}>
+      {children}
+    </I18nContext.Provider>
+  );
+};
+
+export const useI18n = () => {
+  const context = useContext(I18nContext);
+  if (!context) {
+    throw new Error('useI18n must be used within I18nProvider');
+  }
+  return context;
+};
diff --git a/i18n/translations.ts b/i18n/translations.ts
new file mode 100644
index 0000000..a94c795
--- /dev/null
+++ b/i18n/translations.ts
@@ -0,0 +1,2361 @@
+export type Language = 'en' | 'zh' | 'ja' | 'ko';
+
+export const translations = {
+  en: {
+    // Navigation
+    create: 'Create',
+    library: 'Library',
+    search: 'Search',
+    training: 'Training',
+    
+    // Theme
+    lightMode: 'Light Mode',
+    darkMode: 'Dark Mode',
+    
+    // Auth
+    signIn: 'Sign In',
+    signOut: 'Sign Out',
+    settings: 'Settings',
+    
+    // Username Modal
+    welcomeTitle: 'Welcome to ACE-Step UI',
+    welcomeSubtitle: 'Enter your name to get started creating AI music',
+    yourName: 'Your Name',
+    enterYourName: 'Enter your name',
+    getStarted: 'Get Started',
+    gettingStarted: 'Getting Started...',
+    yourMusicYourWay: 'Your music, your way. Create unlimited AI music for free.',
+    usernameMinLength: 'Username must be at least 2 characters',
+    usernameInvalidChars: 'Username can only contain letters, numbers, underscores, and dashes',
+    failedToSetUsername: 'Failed to set username',
+    
+    // Toasts
+    songNotAvailable: 'This song is no longer available.',
+    unableToPlay: 'Unable to play this song.',
+    generationTimedOut: 'Generation timed out',
+    generationFailed: 'Generation failed. Please try again.',
+    playlistCreated: 'Playlist created successfully!',
+    failedToCreatePlaylist: 'Failed to create playlist',
+    songAddedToPlaylist: 'Song added to playlist',
+    failedToAddSong: 'Failed to add song to playlist',
+    songDeleted: 'Song deleted successfully',
+    failedToDeleteSong: 'Failed to delete song',
+    
+    // Sidebar
+    aceStepUI: 'ACE-Step UI',
+    
+    // Common
+    cancel: 'Cancel',
+    save: 'Save',
+    delete: 'Delete',
+    edit: 'Edit',
+    share: 'Share',
+    download: 'Download',
+    play: 'Play',
+    pause: 'Pause',
+    normalSpeed: 'Normal',
+    next: 'Next',
+    previous: 'Previous',
+    
+    // Placeholders
+    searchPlaceholder: 'Search...',
+    
+    // Settings
+    language: 'Language',
+    english: 'English',
+    chinese: 'Chinese',
+    japaneseLanguage: 'Japanese',
+    koreanLanguage: 'Korean',
+    appearance: 'Appearance',
+    profile: 'Profile',
+    viewProfile: 'View Profile',
+    editProfile: 'Edit Profile',
+    account: 'Account',
+    username: 'Username',
+    memberSince: 'Member since',
+    about: 'About',
+    version: 'Version',
+    localAIMusicGenerator: 'Local AI Music Generator',
+    poweredBy: 'Powered by ACE-Step 1.5. Open source and free to use.',
+    createdBy: 'Created by Ambsd',
+    localizedBy: 'Localization & Training by bdsqlsz',
+    follow: 'Follow',
+    done: 'Done',
+    light: 'Light',
+    dark: 'Dark',
+    
+    // Mobile
+    createSong: 'Create Song',
+    viewList: 'View List',
+    
+    // CreatePanel - Modes
+    simple: 'Simple',
+    custom: 'Custom',
+    
+    // CreatePanel - Sections
+    audio: 'AUDIO',
+    lyrics: 'LYRICS',
+    styleOfMusic: 'STYLE OF MUSIC',
+    title: 'Title',
+    musicParameters: 'Music Parameters',
+    advancedSettings: 'Advanced Settings',
+    
+    // CreatePanel - LoRA
+    loraPath: 'LoRA Path',
+    loraPathPlaceholder: 'Enter LoRA model path...',
+    browseFiles: 'Browse files',
+    loraLoaded: 'LoRA Loaded',
+    loraUnloaded: 'LoRA Unloaded',
+    loraLoad: 'Load',
+    loraUnload: 'Unload',
+    loraScale: 'LoRA Scale',
+    loraScaleDescription: 'Adjust the influence strength of the LoRA model',
+    
+    // CreatePanel - Audio
+    reference: 'Reference',
+    cover: 'Cover',
+    fromLibrary: 'From library',
+    upload: 'Upload',
+    
+    // CreatePanel - Lyrics
+    lyricsPlaceholder: 'Your lyrics here...',
+    leaveLyricsEmpty: 'Leave empty for instrumental or toggle below',
+    vocal: 'Vocal',
+    instrumental: 'Instrumental',
+    vocalLanguage: 'Vocal Language',
+    autoInstrumental: 'Auto / Instrumental',
+    vocalArabic: 'Arabic',
+    vocalAzerbaijani: 'Azerbaijani',
+    vocalBulgarian: 'Bulgarian',
+    vocalBengali: 'Bengali',
+    vocalCatalan: 'Catalan',
+    vocalCzech: 'Czech',
+    vocalDanish: 'Danish',
+    vocalGerman: 'German',
+    vocalGreek: 'Greek',
+    vocalEnglish: 'English',
+    vocalSpanish: 'Spanish',
+    vocalPersian: 'Persian',
+    vocalFinnish: 'Finnish',
+    vocalFrench: 'French',
+    vocalHebrew: 'Hebrew',
+    vocalHindi: 'Hindi',
+    vocalCroatian: 'Croatian',
+    vocalHaitianCreole: 'Haitian Creole',
+    vocalHungarian: 'Hungarian',
+    vocalIndonesian: 'Indonesian',
+    vocalIcelandic: 'Icelandic',
+    vocalItalian: 'Italian',
+    vocalJapanese: 'Japanese',
+    vocalKorean: 'Korean',
+    vocalLatin: 'Latin',
+    vocalLithuanian: 'Lithuanian',
+    vocalMalay: 'Malay',
+    vocalNepali: 'Nepali',
+    vocalDutch: 'Dutch',
+    vocalNorwegian: 'Norwegian',
+    vocalPunjabi: 'Punjabi',
+    vocalPolish: 'Polish',
+    vocalPortuguese: 'Portuguese',
+    vocalRomanian: 'Romanian',
+    vocalRussian: 'Russian',
+    vocalSanskrit: 'Sanskrit',
+    vocalSlovak: 'Slovak',
+    vocalSerbian: 'Serbian',
+    vocalSwedish: 'Swedish',
+    vocalSwahili: 'Swahili',
+    vocalTamil: 'Tamil',
+    vocalTelugu: 'Telugu',
+    vocalThai: 'Thai',
+    vocalTagalog: 'Tagalog',
+    vocalTurkish: 'Turkish',
+    vocalUkrainian: 'Ukrainian',
+    vocalUrdu: 'Urdu',
+    vocalVietnamese: 'Vietnamese',
+    vocalCantonese: 'Cantonese',
+    vocalChineseMandarin: 'Chinese (Mandarin)',
+    
+    // CreatePanel - Style
+    stylePlaceholder: 'e.g. upbeat pop rock, emotional ballad, 90s hip hop',
+    genreMoodInstruments: 'Genre, mood, instruments, vibe',
+    refreshGenres: 'Refresh genre suggestions',
+    mainGenre: 'Main Genre',
+    subGenre: 'Sub Genre',
+    nameSong: 'Name your song',
+    
+    // CreatePanel - Parameters
+    bpm: 'BPM',
+    auto: 'Auto',
+    duration: 'Duration',
+    seconds: 's',
+    keyScale: 'Key & Scale',
+    timeSignature: 'Time Signature',
+    
+    // CreatePanel - Advanced
+    randomSeed: 'Random Seed',
+    thinking: 'Thinking',
+    audioFormat: 'Audio Format',
+    inferenceSteps: 'Inference Steps',
+    guidanceScale: 'Guidance Scale',
+    inferMethod: 'Inference Method',
+    shift: 'Shift',
+    timestepShiftForBase: 'Timestep shift for base models (not effective for turbo)',
+    expertControls: 'EXPERT CONTROLS',
+    lmParameters: 'LM Parameters',
+    controlLyricGeneration: 'Control lyric generation + creativity',
+    transform: 'TRANSFORM',
+    controlSourceAudio: 'Control how much the model follows the source audio',
+    audioCodes: 'Audio Codes',
+    optionalAudioCodes: 'Optional audio codes payload',
+    taskType: 'Task Type',
+    textToMusic: 'Text → Music',
+    audioCoverStrength: 'Audio Cover Strength',
+    repaintingStart: 'Repainting Start',
+    repaintingEnd: 'Repainting End',
+    instruction: 'Instruction',
+    lmTemperature: 'LM Temperature',
+    higherMoreRandom: 'Higher = more random (0-2)',
+    lmCfgScale: 'LM CFG Scale',
+    noCfgScale: '1.0 = no CFG (1-3)',
+    topK: 'Top-K',
+    topP: 'Top-P',
+    lmNegativePrompt: 'LM Negative Prompt',
+    noUserInput: 'NO USER INPUT',
+    thingsToAvoid: 'Things to avoid...',
+    useWhenCfgScaleGreater: 'Use when LM CFG Scale > 1.0',
+    lmTopK: 'LM Top-K',
+    lmTopP: 'LM Top-P',
+    
+    // Guidance section
+    guidance: 'GUIDANCE',
+    advancedCfgScheduling: 'Advanced CFG scheduling controls.',
+    cfgIntervalStart: 'CFG Interval Start',
+    cfgIntervalEnd: 'CFG Interval End',
+    customTimesteps: 'Custom Timesteps',
+    timestepsPlaceholder: 'e.g. 1,3,5,7',
+    scoreScale: 'Score Scale',
+    lmBatchChunkSize: 'LM Batch Chunk Size',
+    trackName: 'Track Name',
+    optionalTrackName: 'Optional track name',
+    completeTrackClasses: 'Complete Track Classes',
+    trackClassesPlaceholder: 'class-a, class-b',
+    useAdg: 'Use ADG',
+    allowLmBatch: 'Allow LM Batch',
+    useCotMetas: 'Use CoT Metas',
+    useCotCaption: 'Use CoT Caption',
+    useCotLanguage: 'Use CoT Language',
+    autogen: 'Autogen',
+    constrainedDecodingDebug: 'Constrained Decoding Debug',
+    formatCaption: 'Format Caption',
+    getScores: 'Get Scores',
+    getLrcLyrics: 'Get LRC (Lyrics)',
+    batchSize: 'Batch Size (Variations)',
+    variations: 'Variations',
+    bulkGenerate: 'Bulk Generate',
+    job: 'job',
+    jobs: 'jobs',
+    queueMultipleJobs: 'Queue multiple independent generation jobs with same settings',
+    numberOfVariations: 'Number of song variations to generate',
+    moreStepsBetterQuality: 'More steps = better quality, slower (8 recommended for turbo)',
+    howCloselyFollowPrompt: 'How closely to follow the prompt',
+    seed: 'Seed',
+    randomSeedRecommended: 'Randomized every run (recommended)',
+    fixedSeedReproducible: 'Fixed seed for reproducible results',
+    enterFixedSeed: 'Enter fixed seed',
+    thinkingCot: 'Thinking (CoT)',
+    mp3Smaller: 'MP3 (smaller)',
+    flacLossless: 'FLAC (lossless)',
+    odeDeterministic: 'ODE (deterministic)',
+    sdeStochastic: 'SDE (stochastic)',
+    min: 'min',
+    
+    // CreatePanel - Drag & Drop
+    dropToUseAudio: 'Drop to use audio',
+    dropToUpload: 'Drop to upload',
+    usingAsReference: 'Using as Reference',
+    usingAsCover: 'Using as Cover',
+    uploadingAsReference: 'Uploading as Reference',
+    uploadingAsCover: 'Uploading as Cover',
+    
+    // CreatePanel - Vocal Gender
+    vocalGender: 'Vocal Gender',
+    male: 'Male',
+    female: 'Female',
+    
+    // CreatePanel - LM Backend & Model
+    lmBackendLabel: 'LM Backend',
+    lmBackendPt: 'PT (~1.6 GB VRAM)',
+    lmBackendVllm: 'VLLM (~9.2 GB VRAM)',
+    lmBackendHint: 'PT uses less VRAM, VLLM may be faster on powerful GPUs',
+    lmModelLabel: 'LM Model',
+    lmModel06B: '0.6B (Lightest, ~0.5 GB VRAM)',
+    lmModel17B: '1.7B (Balanced, ~1.5 GB VRAM)',
+    lmModel4B: '4B (Best quality, ~4 GB VRAM)',
+    lmModelHint: 'Controls the LLM used for lyrics/style enhancement. Auto-downloads if not present.',
+    
+    // CreatePanel - Transcription
+    transcribing: 'Transcribing...',
+    transcribingWithWhisper: 'Transcribing with Whisper…',
+    
+    // CreatePanel - Library Tabs
+    uploaded: 'Uploaded',
+    createdTab: 'Created',
+    useTrack: 'Use',
+    noCreatedSongsYet: 'No created songs yet',
+    generateSongsToReuse: 'Generate songs to reuse them as cover or reference',
+    
+    // CreatePanel - Actions
+    generate: 'Generate',
+    generating: 'Generating...',
+    createButton: 'Create',
+    formatLyrics: 'Format Lyrics',
+    formatting: 'Formatting...',
+    clearAll: 'Clear All',
+    
+    // Simple Mode
+    describeYourSong: 'DESCRIBE YOUR SONG',
+    songDescriptionPlaceholder: 'A happy pop song about summer adventures with friends...',
+    quickSettings: 'QUICK SETTINGS',
+    key: 'Key',
+    time: 'Time',
+    
+    // CreatePanel - Errors
+    loginToGenerate: 'Please login to generate music',
+    uploadFailed: 'Upload failed',
+    formatFailed: 'Format failed',
+    formatFailedDetail: 'Format failed. Make sure the LLM is initialized.',
+    formatFailedLlmUnavailable: 'Format failed. The LLM may not be available.',
+    deleteSongConfirm: 'Are you sure you want to delete "{title}"? This action cannot be undone.',
+    profileUpdateFailed: 'Failed to update profile',
+    ffmpegLoadFailed: 'Failed to load video encoder. Please refresh and try again.',
+    videoRenderFailed: 'Video rendering failed. Please try again.',
+    
+    // SongList / Filters
+    searchYourSongs: 'Search your songs...',
+    filters: 'Filters',
+    refineBy: 'REFINE BY',
+    liked: 'Liked',
+    public: 'Public',
+    private: 'Private',
+    generatingStatus: 'Generating',
+    selectSongToView: 'Select a song to view details',
+    noSongsMatchFilters: 'No songs match your filters.',
+    clearFilters: 'Clear filters',
+    
+    // RightSidebar - Song Details
+    songDetails: 'Song Details',
+    created: 'Created',
+    styleTags: 'STYLE & TAGS',
+    lyricsSection: 'LYRICS',
+    copyLyrics: 'Copy',
+    
+    // Languages
+    japanese: 'Japanese',
+    spanish: 'Spanish',
+    german: 'German',
+    french: 'French',
+    portuguese: 'Portuguese',
+    russian: 'Russian',
+    italian: 'Italian',
+    dutch: 'Dutch',
+    polish: 'Polish',
+    turkish: 'Turkish',
+    vietnamese: 'Vietnamese',
+    czech: 'Czech',
+    persian: 'Persian',
+    arabic: 'Arabic',
+    korean: 'Korean',
+    thai: 'Thai',
+    hindi: 'Hindi',
+    indonesian: 'Indonesian',
+    ukrainian: 'Ukrainian',
+    hungarian: 'Hungarian',
+    swedish: 'Swedish',
+    romanian: 'Romanian',
+    greek: 'Greek',
+    
+    // Task Types
+    audio2audio: 'Audio → Audio',
+    coverTask: 'Cover',
+    repaintTask: 'Repaint',
+    
+    // Search Page
+    searchSongsPlaceholder: 'Search for songs, playlists, creators, or genres',
+    songsMatching: 'Songs matching',
+    featuredSongs: 'Featured Songs',
+    noSongsFound: 'No songs found matching',
+    creatorsMatching: 'Creators matching',
+    featuredCreators: 'Featured Creators',
+    noCreatorsFound: 'No creators found matching',
+    noCreatorsYet: 'No creators yet. Be the first to share your music!',
+    playlistsMatching: 'Playlists matching',
+    featuredPlaylists: 'Featured Playlists',
+    noPlaylistsFound: 'No playlists found matching',
+    noPlaylistsYet: 'No public playlists yet. Create one and share your favorites!',
+    genres: 'Genres',
+    songs: 'songs',
+    
+    // Library View
+    yourLibrary: 'Your Library',
+    newPlaylist: 'New Playlist',
+    likedSongs: 'Liked Songs',
+    playlists: 'Playlists',
+    playlist: 'Playlist',
+    byYou: 'By You',
+    
+    // User Profile
+    back: 'Back',
+    loadingProfile: 'Loading profile...',
+    userNotFound: 'User not found',
+    goBack: 'Go Back',
+    likes: 'Likes',
+    plays: 'Plays',
+    recent: 'Recent',
+    top: 'Top',
+    noPublicSongsYet: 'No public songs yet',
+    seeMore: 'See More',
+    joined: 'Joined',
+    supportingSince: 'Supporting since',
+    avatarImage: 'Avatar Image',
+    uploadAvatar: 'Upload Avatar',
+    avatarFormats: 'JPG, PNG, WebP, GIF • Max 5MB',
+    bannerImage: 'Banner Image',
+    clickToUploadBanner: 'Click to upload banner',
+    bannerFormats: 'Recommended: 1500x500px • JPG, PNG, WebP, GIF • Max 5MB',
+    bio: 'Bio',
+    bioPlaceholder: 'Tell us about yourself...',
+    uploadingAvatar: 'Uploading Avatar...',
+    uploadingBanner: 'Uploading Banner...',
+    saving: 'Saving...',
+    saveChanges: 'Save Changes',
+    
+    // Playlist Modals
+    createPlaylist: 'Create Playlist',
+    playlistName: 'Name',
+    playlistNamePlaceholder: 'My Awesome Playlist',
+    playlistDescription: 'Description',
+    descriptionPlaceholder: 'Vibes for coding...',
+    addToPlaylist: 'Add to Playlist',
+    createNewPlaylist: 'Create New Playlist',
+    noExistingPlaylists: 'No existing playlists.',
+    
+    // Edit Profile Modal (Settings)
+    usernameLabel: 'Username',
+    usernamePlaceholder: 'username',
+    usernameMinLengthError: 'Username must be at least 2 characters',
+    usernameTakenError: 'Username is already taken',
+    usernameUpdateFailedError: 'Failed to update username',
+    usernameRequirements: 'Letters, numbers, underscores, and hyphens only',
+    
+    // Song Details (RightSidebar)
+    more: 'more',
+    copy: 'Copy',
+    copied: 'Copied!',
+    copyAllTags: 'Copy all tags',
+    
+    // Song Dropdown Menu
+    createVideo: 'Create Video',
+    editAudio: 'Edit Audio',
+    extractStems: 'Extract Stems',
+    reusePrompt: 'Reuse Prompt',
+    deleteSong: 'Delete Song',
+    useAsReference: 'Use as Reference',
+    coverSong: 'Cover Song',
+    confirmDeleteTitle: 'Delete Song',
+    confirmDeleteManyTitle: 'Delete Songs',
+    deleteSongsConfirm: 'Delete {count} songs? This action cannot be undone.',
+    songsDeletedSuccess: 'Songs deleted successfully',
+    songsDeletedPartial: 'Deleted {succeeded}/{total} songs',
+    deleteUploadConfirm: 'Delete this upload? This action cannot be undone.',
+    cannotBeUndone: 'This action cannot be undone.',
+    
+    // Player
+    nowPlaying: 'Now Playing',
+    downloadAudio: 'Download Audio',
+    openInEditor: 'Open in Editor',
+    anonymous: 'Anonymous',
+    
+    // PlaylistDetail
+    loadingPlaylist: 'Loading playlist...',
+    playlistNotFound: 'Playlist not found',
+    deletePlaylistConfirm: 'Are you sure you want to delete this playlist?',
+    dateAdded: 'Date Added',
+    justNow: 'Just now',
+    unknown: 'Unknown',
+    
+    // SongProfile
+    loadingSong: 'Loading song...',
+    songNotFound: 'Song not found',
+    similar: 'Similar',
+    by: 'By',
+    
+    // ShareModal
+    shareSong: 'Share Song',
+    shareOnX: 'Share on X',
+    shareOnFacebook: 'Share on Facebook',
+    shareOnWhatsApp: 'Share on WhatsApp',
+    shareOnTelegram: 'Share on Telegram',
+    shareOnReddit: 'Share on Reddit',
+    shareOnLinkedIn: 'Share on LinkedIn',
+    shareViaEmail: 'Share via Email',
+    copyLink: 'Copy Link',
+    emailSubject: 'Check out this AI song',
+    emailBody: 'Hey!\n\nI created this AI-generated song and thought you\'d love it:\n\n"{title}" by {creator}\n{style}\n\nListen here: {url}\n\nMade with ACE-Step UI - free and open source local AI music generation!',
+    
+    // Reference Modal
+    referenceModalTitle: 'Reference',
+    coverModalTitle: 'Cover',
+    referenceModalDescription: 'Create songs inspired by a reference track',
+    coverModalDescription: 'Transform an existing track into a new version',
+    uploadAudio: 'Upload audio',
+    uploadingAudio: 'Uploading...',
+    audioFormats: 'MP3, WAV, FLAC',
+    mine: 'Mine',
+    loadingTracks: 'Loading tracks...',
+    noTracksYet: 'No tracks yet',
+    uploadAudioFilesAsReferences: 'Upload audio files to use them as references',
+    
+    // Training Module
+    loraTraining: 'LoRA Training',
+    trainingDescription: 'Build datasets from your audio files and train custom LoRA adapters',
+    datasetBuilder: 'Dataset Builder',
+    trainLora: 'Train LoRA',
+    quickStart: 'Quick Start',
+    chooseOneOption: 'Choose one: Load existing dataset OR Scan new directory',
+    loadExistingDataset: 'Load Existing Dataset',
+    loadDataset: 'Load',
+    scanNewDirectory: 'Scan New Directory',
+    scanDataset: 'Scan',
+    datasetSettings: 'Dataset Settings',
+    datasetName: 'Dataset Name',
+    customActivationTag: 'Custom Activation Tag',
+    allInstrumental: 'All Instrumental',
+    tagPosition: 'Tag Position',
+    tagPrepend: 'Prepend (tag, caption)',
+    tagAppend: 'Append (caption, tag)',
+    tagReplace: 'Replace caption',
+    genreRatio: 'Genre Ratio',
+    genreRatioHint: '0% = all Caption, 100% = all Genre',
+    autoLabelWithAI: 'Auto-Label with AI',
+    autoLabelDescription: 'Generate metadata for audio files: Caption, BPM, Key, Time Signature',
+    skipMetas: 'Skip BPM/Key/Time Signature',
+    onlyUnlabeled: 'Only Unlabeled',
+    autoLabelAll: 'Auto-Label All',
+    filename: 'Filename',
+    labeled: 'Labeled',
+    saveDataset: 'Save Dataset',
+    preprocessToTensors: 'Preprocess to Tensors',
+    preprocessDescription: 'Converts dataset to pre-computed tensors for fast training (requires model loaded)',
+    preprocess: 'Preprocess',
+    preprocessedDataset: 'Preprocessed Dataset',
+    loraSettings: 'LoRA Settings',
+    loraRank: 'LoRA Rank',
+    loraAlpha: 'LoRA Alpha',
+    dropout: 'Dropout',
+    trainingParameters: 'Training Parameters',
+    learningRate: 'Learning Rate',
+    maxEpochs: 'Max Epochs',
+    gradientAccumulation: 'Gradient Accumulation',
+    saveEvery: 'Save Every',
+    epochs: 'epochs',
+    outputDirectory: 'Output Directory',
+    useFP8: 'Use FP8 Quantization',
+    fp8Description: 'Reduces VRAM usage',
+    startTraining: 'Start Training',
+    stopTraining: 'Stop Training',
+    trainingProgress: 'Training Progress',
+    trainingLog: 'Training Log',
+    trainingStatus: 'Training Status',
+    tensorboardView: 'TensorBoard View',
+    showTensorboard: 'Show TensorBoard',
+    hideTensorboard: 'Hide TensorBoard',
+    openInNewTab: 'Open in New Tab',
+    
+    // Training Status Messages
+    scanning: 'Scanning...',
+    autoLabeling: 'Auto-labeling...',
+    savingDataset: 'Saving...',
+    preprocessing: 'Preprocessing...',
+    loadingDataset: 'Loading...',
+    startingTraining: 'Starting...',
+    error: 'Error',
+    datasetInfo: 'Dataset: {name}, Samples: {samples}, Labeled: {labeled}',
+    trainingStep: 'Step {step} - Loss: {loss}',
+    editSample: 'Edit Sample',
+    caption: 'Caption',
+    genre: 'Genre',
+    promptOverride: 'Prompt Override',
+    musicDescription: 'Music description...',
+    overrideGlobalRatio: 'Override global ratio for this sample',
+    editableUsedForTraining: 'editable, used for training',
+    useGlobalRatio: 'Use Global Ratio',
+    thisSample: 'this sample',
+  },
+  zh: {
+    // Navigation
+    create: '创作',
+    library: '音乐库',
+    search: '搜索',
+    training: '训练',
+    
+    // Theme
+    lightMode: '浅色模式',
+    darkMode: '深色模式',
+    
+    // Auth
+    signIn: '登录',
+    signOut: '退出',
+    settings: '设置',
+    
+    // Username Modal
+    welcomeTitle: '欢迎使用 ACE-Step UI',
+    welcomeSubtitle: '输入您的名字开始创作 AI 音乐',
+    yourName: '您的名字',
+    enterYourName: '请输入您的名字',
+    getStarted: '开始使用',
+    gettingStarted: '正在启动...',
+    yourMusicYourWay: '您的音乐，您的方式。免费创作无限 AI 音乐。',
+    usernameMinLength: '用户名至少需要 2 个字符',
+    usernameInvalidChars: '用户名只能包含字母、数字、下划线和破折号',
+    failedToSetUsername: '设置用户名失败',
+    
+    // Toasts
+    songNotAvailable: '该歌曲已不可用。',
+    unableToPlay: '无法播放该歌曲。',
+    generationTimedOut: '生成超时',
+    generationFailed: '生成失败，请重试。',
+    playlistCreated: '歌单创建成功！',
+    failedToCreatePlaylist: '创建歌单失败',
+    songAddedToPlaylist: '已添加到歌单',
+    failedToAddSong: '添加歌曲失败',
+    songDeleted: '歌曲删除成功',
+    failedToDeleteSong: '删除歌曲失败',
+    
+    // Sidebar
+    aceStepUI: 'ACE-Step UI',
+    
+    // Common
+    cancel: '取消',
+    save: '保存',
+    delete: '删除',
+    edit: '编辑',
+    share: '分享',
+    download: '下载',
+    play: '播放',
+    pause: '暂停',
+    normalSpeed: '正常',
+    next: '下一首',
+    previous: '上一首',
+    
+    // Placeholders
+    searchPlaceholder: '搜索...',
+    
+    // Settings
+    language: '语言',
+    english: 'English',
+    chinese: '简体中文',
+    japaneseLanguage: '日本語',
+    koreanLanguage: '한국어',
+    appearance: '外观',
+    profile: '个人资料',
+    viewProfile: '查看个人资料',
+    editProfile: '编辑资料',
+    account: '账户',
+    username: '用户名',
+    memberSince: '加入时间',
+    about: '关于',
+    version: '版本',
+    localAIMusicGenerator: '本地 AI 音乐生成器',
+    poweredBy: '由 ACE-Step 1.5 驱动。开源免费使用。',
+    createdBy: '开发者 Ambsd',
+    localizedBy: '本地化翻译 & 训练 青龙圣者',
+    follow: '关注',
+    done: '完成',
+    light: '浅色',
+    dark: '深色',
+    
+    // Mobile
+    createSong: '创作歌曲',
+    viewList: '查看列表',
+    
+    // CreatePanel - Modes
+    simple: '简单',
+    custom: '自定义',
+    
+    // CreatePanel - Sections
+    audio: '音频',
+    lyrics: '歌词',
+    styleOfMusic: '音乐风格',
+    title: '标题',
+    musicParameters: '音乐参数',
+    advancedSettings: '高级设置',
+    
+    // CreatePanel - LoRA
+    loraPath: 'LoRA 路径',
+    loraPathPlaceholder: '输入 LoRA 模型路径...',
+    browseFiles: '浏览文件',
+    loraLoaded: 'LoRA 已加载',
+    loraUnloaded: 'LoRA 未加载',
+    loraLoad: '加载',
+    loraUnload: '卸载',
+    loraScale: 'LoRA 强度',
+    loraScaleDescription: '调整 LoRA 模型的影响强度',
+    
+    // CreatePanel - Audio
+    reference: '参考',
+    cover: '翻唱',
+    fromLibrary: '从库中选择',
+    upload: '上传',
+    
+    // CreatePanel - Lyrics
+    lyricsPlaceholder: '在此输入歌词...',
+    leaveLyricsEmpty: '留空表示纯音乐，或使用下方开关',
+    vocal: '人声',
+    instrumental: '纯音乐',
+    vocalLanguage: '人声语言',
+    autoInstrumental: '自动 / 纯音乐',
+    vocalArabic: '阿拉伯语',
+    vocalAzerbaijani: '阿塞拜疆语',
+    vocalBulgarian: '保加利亚语',
+    vocalBengali: '孟加拉语',
+    vocalCatalan: '加泰罗尼亚语',
+    vocalCzech: '捷克语',
+    vocalDanish: '丹麦语',
+    vocalGerman: '德语',
+    vocalGreek: '希腊语',
+    vocalEnglish: '英语',
+    vocalSpanish: '西班牙语',
+    vocalPersian: '波斯语',
+    vocalFinnish: '芬兰语',
+    vocalFrench: '法语',
+    vocalHebrew: '希伯来语',
+    vocalHindi: '印地语',
+    vocalCroatian: '克罗地亚语',
+    vocalHaitianCreole: '海地克里奥尔语',
+    vocalHungarian: '匈牙利语',
+    vocalIndonesian: '印尼语',
+    vocalIcelandic: '冰岛语',
+    vocalItalian: '意大利语',
+    vocalJapanese: '日语',
+    vocalKorean: '韩语',
+    vocalLatin: '拉丁语',
+    vocalLithuanian: '立陶宛语',
+    vocalMalay: '马来语',
+    vocalNepali: '尼泊尔语',
+    vocalDutch: '荷兰语',
+    vocalNorwegian: '挪威语',
+    vocalPunjabi: '旁遮普语',
+    vocalPolish: '波兰语',
+    vocalPortuguese: '葡萄牙语',
+    vocalRomanian: '罗马尼亚语',
+    vocalRussian: '俄语',
+    vocalSanskrit: '梵语',
+    vocalSlovak: '斯洛伐克语',
+    vocalSerbian: '塞尔维亚语',
+    vocalSwedish: '瑞典语',
+    vocalSwahili: '斯瓦希里语',
+    vocalTamil: '泰米尔语',
+    vocalTelugu: '泰卢固语',
+    vocalThai: '泰语',
+    vocalTagalog: '他加禄语',
+    vocalTurkish: '土耳其语',
+    vocalUkrainian: '乌克兰语',
+    vocalUrdu: '乌尔都语',
+    vocalVietnamese: '越南语',
+    vocalCantonese: '粤语',
+    vocalChineseMandarin: '中文（普通话）',
+    
+    // CreatePanel - Style
+    stylePlaceholder: '例如：欢快流行摇滚、抒情民谣、90年代嘻哈',
+    genreMoodInstruments: '曲风、情绪、乐器、氛围',
+    refreshGenres: '刷新风格建议',
+    mainGenre: '大类风格',
+    subGenre: '小类风格',
+    nameSong: '为歌曲命名',
+    
+    // CreatePanel - Parameters
+    bpm: '曲速*(BPM)',
+    auto: '自动',
+    duration: '时长',
+    seconds: '秒',
+    keyScale: '调式',
+    timeSignature: '拍号',
+    
+    // CreatePanel - Advanced
+    randomSeed: '随机种子',
+    thinking: '思考模式',
+    audioFormat: '音频格式',
+    inferenceSteps: '推理步数',
+    guidanceScale: '引导强度(cfg)',
+    inferMethod: '推理方法',
+    shift: '偏移(shift)',
+    timestepShiftForBase: '基础模型的时间步偏移（turbo 模式无效）',
+    expertControls: '专家控制',
+    lmParameters: 'LM 参数',
+    controlLyricGeneration: '控制歌词生成和创造力',
+    transform: '音频转换',
+    controlSourceAudio: '控制模型遵循源音频的程度',
+    audioCodes: '音频编码',
+    optionalAudioCodes: '可选的音频编码载荷',
+    taskType: '任务类型',
+    textToMusic: '文本 → 音乐',
+    audioCoverStrength: '音频翻唱强度',
+    repaintingStart: '重绘开始',
+    repaintingEnd: '重绘结束',
+    instruction: '指令',
+    lmTemperature: 'LM 温度',
+    higherMoreRandom: '值越高越随机（0-2）',
+    lmCfgScale: 'LM CFG 强度',
+    noCfgScale: '1.0 = 无 CFG（1-3）',
+    topK: 'Top-K',
+    topP: 'Top-P',
+    lmNegativePrompt: 'LM 负面提示词',
+    noUserInput: '无用户输入',
+    thingsToAvoid: '要避免的内容...',
+    useWhenCfgScaleGreater: '当 LM CFG 强度 > 1.0 时使用',
+    lmTopK: 'LM Top-K',
+    lmTopP: 'LM Top-P',
+    
+    // Guidance section
+    guidance: '引导控制(guidance)',
+    advancedCfgScheduling: '高级 CFG 调度控制。',
+    cfgIntervalStart: 'CFG 区间开始',
+    cfgIntervalEnd: 'CFG 区间结束',
+    customTimesteps: '自定义时间步',
+    timestepsPlaceholder: '例如：1,3,5,7',
+    scoreScale: '分数缩放',
+    lmBatchChunkSize: 'LM 批次块大小',
+    trackName: '音轨名称',
+    optionalTrackName: '可选的音轨名称',
+    completeTrackClasses: '完整音轨类别',
+    trackClassesPlaceholder: '类别-a, 类别-b',
+    useAdg: '使用 ADG',
+    allowLmBatch: '允许 LM 批处理',
+    useCotMetas: '使用 CoT 元数据',
+    useCotCaption: '使用 CoT 字幕',
+    useCotLanguage: '使用 CoT 语言',
+    autogen: '自动生成',
+    constrainedDecodingDebug: '约束解码调试',
+    formatCaption: '格式化字幕',
+    getScores: '获取分数',
+    getLrcLyrics: '获取 LRC（歌词）',
+    batchSize: '批量大小（变体数）',
+    variations: '变体',
+    bulkGenerate: '批量生成',
+    job: '任务',
+    jobs: '任务',
+    queueMultipleJobs: '使用相同设置排队多个独立生成任务',
+    numberOfVariations: '要生成的歌曲变体数量',
+    moreStepsBetterQuality: '步数越多质量越好，速度越慢（turbo 推荐 8）',
+    howCloselyFollowPrompt: '多严格遵循提示词',
+    seed: '种子',
+    randomSeedRecommended: '每次运行随机（推荐）',
+    fixedSeedReproducible: '固定种子以获得可重现结果',
+    enterFixedSeed: '输入固定种子',
+    thinkingCot: '思考模式（CoT）',
+    mp3Smaller: 'MP3（较小）',
+    flacLossless: 'FLAC（无损）',
+    odeDeterministic: 'ODE（确定性）',
+    sdeStochastic: 'SDE（随机性）',
+    min: '分钟',
+    
+    // CreatePanel - Drag & Drop
+    dropToUseAudio: '拖放以使用音频',
+    dropToUpload: '拖放以上传',
+    usingAsReference: '用作参考',
+    usingAsCover: '用作翻唱',
+    uploadingAsReference: '上传为参考',
+    uploadingAsCover: '上传为翻唱',
+    
+    // CreatePanel - Vocal Gender
+    vocalGender: '人声性别',
+    male: '男声',
+    female: '女声',
+    
+    // CreatePanel - LM Backend & Model
+    lmBackendLabel: 'LM 后端',
+    lmBackendPt: 'PT（~1.6 GB 显存）',
+    lmBackendVllm: 'VLLM（~9.2 GB 显存）',
+    lmBackendHint: 'PT 显存占用更少，VLLM 在高性能 GPU 上可能更快',
+    lmModelLabel: 'LM 模型',
+    lmModel06B: '0.6B（最轻量，~0.5 GB 显存）',
+    lmModel17B: '1.7B（均衡，~1.5 GB 显存）',
+    lmModel4B: '4B（最佳质量，~4 GB 显存）',
+    lmModelHint: '控制用于歌词/风格增强的 LLM。如不存在将自动下载。',
+    
+    // CreatePanel - Transcription
+    transcribing: '转录中...',
+    transcribingWithWhisper: '正在使用 Whisper 转录…',
+    
+    // CreatePanel - Library Tabs
+    uploaded: '已上传',
+    createdTab: '已创建',
+    useTrack: '使用',
+    noCreatedSongsYet: '暂无已创建歌曲',
+    generateSongsToReuse: '生成歌曲后可作为翻唱或参考使用',
+    
+    // CreatePanel - Actions
+    generate: '生成',
+    generating: '生成中...',
+    createButton: '创建',
+    formatLyrics: '格式化歌词',
+    formatting: '格式化中...',
+    clearAll: '清空全部',
+    
+    // Simple Mode
+    describeYourSong: '描述你的歌曲',
+    songDescriptionPlaceholder: '一首关于夏日和朋友冒险的快乐流行歌曲...',
+    quickSettings: '快速设置',
+    key: '调式',
+    time: '拍号',
+    
+    // CreatePanel - Errors
+    loginToGenerate: '请登录以生成音乐',
+    uploadFailed: '上传失败',
+    formatFailed: '格式化失败',
+    formatFailedDetail: '格式化失败。请确保 LLM 已初始化。',
+    formatFailedLlmUnavailable: '格式化失败。LLM 可能不可用。',
+    deleteSongConfirm: '确定要删除"{title}"吗？此操作无法撤销。',
+    profileUpdateFailed: '更新个人资料失败',
+    ffmpegLoadFailed: '加载视频编码器失败。请刷新后重试。',
+    videoRenderFailed: '视频渲染失败。请重试。',
+    
+    // SongList / Filters
+    searchYourSongs: '搜索你的歌曲...',
+    filters: '筛选',
+    refineBy: '筛选条件',
+    liked: '已喜欢',
+    public: '公开',
+    private: '私密',
+    generatingStatus: '生成中',
+    selectSongToView: '选择一首歌曲查看详情',
+    noSongsMatchFilters: '没有歌曲符合你的筛选条件。',
+    clearFilters: '清除筛选',
+    
+    // RightSidebar - Song Details
+    songDetails: '歌曲详情',
+    created: '创建于',
+    styleTags: '风格与标签',
+    lyricsSection: '歌词',
+    copyLyrics: '复制',
+    
+    // Languages
+    japanese: '日语',
+    spanish: '西班牙语',
+    german: '德语',
+    french: '法语',
+    portuguese: '葡萄牙语',
+    russian: '俄语',
+    italian: '意大利语',
+    dutch: '荷兰语',
+    polish: '波兰语',
+    turkish: '土耳其语',
+    vietnamese: '越南语',
+    czech: '捷克语',
+    persian: '波斯语',
+    arabic: '阿拉伯语',
+    korean: '韩语',
+    thai: '泰语',
+    hindi: '印地语',
+    indonesian: '印尼语',
+    ukrainian: '乌克兰语',
+    hungarian: '匈牙利语',
+    swedish: '瑞典语',
+    romanian: '罗马尼亚语',
+    greek: '希腊语',
+    
+    // Task Types
+    audio2audio: '音频 → 音频',
+    coverTask: '翻唱',
+    repaintTask: '重绘',
+    
+    // Search Page
+    searchSongsPlaceholder: '搜索歌曲、播放列表、创作者或风格',
+    songsMatching: '匹配的歌曲',
+    featuredSongs: '精选歌曲',
+    noSongsFound: '未找到匹配的歌曲',
+    creatorsMatching: '匹配的创作者',
+    featuredCreators: '精选创作者',
+    noCreatorsFound: '未找到匹配的创作者',
+    noCreatorsYet: '暂无创作者。成为第一个分享音乐的人！',
+    playlistsMatching: '匹配的播放列表',
+    featuredPlaylists: '精选播放列表',
+    noPlaylistsFound: '未找到匹配的播放列表',
+    noPlaylistsYet: '暂无公开播放列表。创建一个并分享你的最爱！',
+    genres: '风格',
+    songs: '首歌曲',
+    
+    // Library View
+    yourLibrary: '我的音乐库',
+    newPlaylist: '新建播放列表',
+    likedSongs: '喜欢的歌曲',
+    playlists: '播放列表',
+    playlist: '播放列表',
+    byYou: '由你创建',
+    
+    // User Profile
+    back: '返回',
+    loadingProfile: '加载中...',
+    userNotFound: '用户不存在',
+    goBack: '返回',
+    likes: '喜欢',
+    plays: '播放',
+    recent: '最新',
+    top: '热门',
+    noPublicSongsYet: '暂无公开歌曲',
+    seeMore: '查看更多',
+    joined: '加入于',
+    supportingSince: '支持者自',
+    avatarImage: '头像',
+    uploadAvatar: '上传头像',
+    avatarFormats: 'JPG、PNG、WebP、GIF • 最大 5MB',
+    bannerImage: '横幅图片',
+    clickToUploadBanner: '点击上传横幅',
+    bannerFormats: '推荐尺寸：1500x500px • JPG、PNG、WebP、GIF • 最大 5MB',
+    bio: '个人简介',
+    bioPlaceholder: '介绍一下你自己...',
+    uploadingAvatar: '上传头像中...',
+    uploadingBanner: '上传横幅中...',
+    saving: '保存中...',
+    saveChanges: '保存更改',
+    
+    // Playlist Modals
+    createPlaylist: '创建播放列表',
+    playlistName: '名称',
+    playlistNamePlaceholder: '我的超棒播放列表',
+    playlistDescription: '描述',
+    descriptionPlaceholder: '编程时的氛围音乐...',
+    addToPlaylist: '添加到播放列表',
+    createNewPlaylist: '创建新播放列表',
+    noExistingPlaylists: '暂无播放列表。',
+    
+    // Edit Profile Modal (Settings)
+    usernameLabel: '用户名',
+    usernamePlaceholder: '用户名',
+    usernameMinLengthError: '用户名至少需要 2 个字符',
+    usernameTakenError: '用户名已被占用',
+    usernameUpdateFailedError: '更新用户名失败',
+    usernameRequirements: '仅允许字母、数字、下划线和短横线',
+    
+    // Song Details (RightSidebar)
+    more: '更多',
+    copy: '复制',
+    copied: '已复制！',
+    copyAllTags: '复制所有标签',
+    
+    // Song Dropdown Menu
+    createVideo: '创建视频',
+    editAudio: '编辑音频',
+    extractStems: '提取音轨',
+    reusePrompt: '重用提示词',
+    deleteSong: '删除歌曲',
+    useAsReference: '用作参考',
+    coverSong: '翻唱歌曲',
+    confirmDeleteTitle: '删除歌曲',
+    confirmDeleteManyTitle: '删除歌曲',
+    deleteSongsConfirm: '确定要删除 {count} 首歌曲吗？此操作无法撤销。',
+    songsDeletedSuccess: '歌曲删除成功',
+    songsDeletedPartial: '已删除 {succeeded}/{total} 首歌曲',
+    deleteUploadConfirm: '确定要删除此上传文件吗？此操作无法撤销。',
+    cannotBeUndone: '此操作无法撤销。',
+    
+    // Player
+    nowPlaying: '正在播放',
+    downloadAudio: '下载音频',
+    openInEditor: '在编辑器中打开',
+    anonymous: '匿名用户',
+    
+    // PlaylistDetail
+    loadingPlaylist: '加载播放列表中...',
+    playlistNotFound: '播放列表未找到',
+    deletePlaylistConfirm: '确定要删除这个播放列表吗？',
+    dateAdded: '添加日期',
+    justNow: '刚刚',
+    unknown: '未知',
+    
+    // SongProfile
+    loadingSong: '加载歌曲中...',
+    songNotFound: '歌曲未找到',
+    similar: '相似',
+    by: '由',
+    
+    // ShareModal
+    shareSong: '分享歌曲',
+    shareOnX: '分享到 X',
+    shareOnFacebook: '分享到 Facebook',
+    shareOnWhatsApp: '分享到 WhatsApp',
+    shareOnTelegram: '分享到 Telegram',
+    shareOnReddit: '分享到 Reddit',
+    shareOnLinkedIn: '分享到 LinkedIn',
+    shareViaEmail: '通过邮件分享',
+    copyLink: '复制链接',
+    emailSubject: '来听听这首AI歌曲',
+    emailBody: '嘿！\n\n我创作了这首AI生成的歌曲，觉得你会喜欢：\n\n《{title}》- {creator}\n{style}\n\n点击收听：{url}\n\n使用 ACE-Step UI 制作 - 免费开源的本地AI音乐生成工具！',
+    
+    // Reference Modal
+    referenceModalTitle: '参考音频',
+    coverModalTitle: '翻唱音频',
+    referenceModalDescription: '基于参考音轨创作歌曲',
+    coverModalDescription: '将现有音轨转换为新版本',
+    uploadAudio: '上传音频',
+    uploadingAudio: '上传中...',
+    audioFormats: 'MP3、WAV、FLAC',
+    mine: '我的',
+    loadingTracks: '加载中...',
+    noTracksYet: '暂无音轨',
+    uploadAudioFilesAsReferences: '上传音频文件作为参考',
+    
+    // Training Module
+    loraTraining: 'LoRA 训练',
+    trainingDescription: '从音频文件构建数据集并训练自定义 LoRA 适配器',
+    datasetBuilder: '数据集构建器',
+    trainLora: '训练 LoRA',
+    quickStart: '快速开始',
+    chooseOneOption: '选择一项：加载现有数据集 或 扫描新目录',
+    loadExistingDataset: '加载现有数据集',
+    loadDataset: '加载',
+    scanNewDirectory: '扫描新目录',
+    scanDataset: '扫描',
+    datasetSettings: '数据集设置',
+    datasetName: '数据集名称',
+    customActivationTag: '自定义激活标签',
+    allInstrumental: '全部纯音乐',
+    tagPosition: '标签位置',
+    tagPrepend: '前置（标签，描述）',
+    tagAppend: '后置（描述，标签）',
+    tagReplace: '替换描述',
+    genreRatio: '风格比例',
+    genreRatioHint: '0% = 全部描述，100% = 全部风格',
+    autoLabelWithAI: 'AI 自动标注',
+    autoLabelDescription: '为音频文件生成元数据：描述、BPM、调式、拍号',
+    skipMetas: '跳过 BPM/调式/拍号',
+    onlyUnlabeled: '仅未标注',
+    autoLabelAll: '自动标注全部',
+    filename: '文件名',
+    labeled: '已标注',
+    saveDataset: '保存数据集',
+    preprocessToTensors: '预处理为张量',
+    preprocessDescription: '将数据集转换为预计算张量以加速训练（需要加载模型）',
+    preprocess: '预处理',
+    preprocessedDataset: '预处理数据集',
+    loraSettings: 'LoRA 设置',
+    loraRank: 'LoRA Rank',
+    loraAlpha: 'LoRA Alpha',
+    dropout: 'Dropout',
+    trainingParameters: '训练参数',
+    learningRate: '学习率',
+    maxEpochs: '最大轮数',
+    gradientAccumulation: '梯度累积',
+    saveEvery: '保存间隔',
+    epochs: '轮',
+    outputDirectory: '输出目录',
+    useFP8: '使用 FP8 量化',
+    fp8Description: '减少显存占用',
+    startTraining: '开始训练',
+    stopTraining: '停止训练',
+    trainingProgress: '训练进度',
+    trainingLog: '训练日志',
+    trainingStatus: '训练状态',
+    tensorboardView: 'TensorBoard 视图',
+    showTensorboard: '显示 TensorBoard',
+    hideTensorboard: '隐藏 TensorBoard',
+    openInNewTab: '在新标签页打开',
+    
+    // Training Status Messages
+    scanning: '扫描中...',
+    autoLabeling: '自动标注中...',
+    savingDataset: '保存中...',
+    preprocessing: '预处理中...',
+    loadingDataset: '加载中...',
+    startingTraining: '启动中...',
+    error: '错误',
+    datasetInfo: '数据集：{name}，样本数：{samples}，已标注：{labeled}',
+    trainingStep: '步骤 {step} - 损失：{loss}',
+    editSample: '编辑样本',
+    caption: '描述',
+    genre: '风格',
+    promptOverride: '提示词覆盖',
+    musicDescription: '音乐描述...',
+    overrideGlobalRatio: '覆盖此样本的全局比例',
+    editableUsedForTraining: '可编辑，用于训练',
+    useGlobalRatio: '使用全局比例',
+    thisSample: '此样本',
+  },
+  ja: {
+    // Navigation
+    create: '作成',
+    library: 'ライブラリ',
+    search: '検索',
+    training: 'トレーニング',
+    
+    // Theme
+    lightMode: 'ライトモード',
+    darkMode: 'ダークモード',
+    
+    // Auth
+    signIn: 'サインイン',
+    signOut: 'サインアウト',
+    settings: '設定',
+    
+    // Username Modal
+    welcomeTitle: 'ACE-Step UIへようこそ',
+    welcomeSubtitle: 'AI音楽作成を始めるために名前を入力してください',
+    yourName: 'お名前',
+    enterYourName: '名前を入力',
+    getStarted: '始める',
+    gettingStarted: '開始中...',
+    yourMusicYourWay: 'あなたの音楽、あなたのスタイルで。無料で無制限にAI音楽を作成。',
+    usernameMinLength: 'ユーザー名は2文字以上である必要があります',
+    usernameInvalidChars: 'ユーザー名は文字、数字、アンダースコア、ハイフンのみ使用できます',
+    failedToSetUsername: 'ユーザー名の設定に失敗しました',
+    
+    // Toasts
+    songNotAvailable: 'この曲は利用できません。',
+    unableToPlay: 'この曲を再生できません。',
+    generationTimedOut: '生成がタイムアウトしました',
+    generationFailed: '生成に失敗しました。もう一度お試しください。',
+    playlistCreated: 'プレイリストを作成しました！',
+    failedToCreatePlaylist: 'プレイリストの作成に失敗しました',
+    songAddedToPlaylist: 'プレイリストに追加しました',
+    failedToAddSong: '曲の追加に失敗しました',
+    songDeleted: '曲を削除しました',
+    failedToDeleteSong: '曲の削除に失敗しました',
+    
+    // Sidebar
+    aceStepUI: 'ACE-Step UI',
+    
+    // Common
+    cancel: 'キャンセル',
+    save: '保存',
+    delete: '削除',
+    edit: '編集',
+    share: '共有',
+    download: 'ダウンロード',
+    play: '再生',
+    pause: '一時停止',
+    normalSpeed: '通常',
+    next: '次へ',
+    previous: '前へ',
+    
+    // Placeholders
+    searchPlaceholder: '検索...',
+    
+    // Settings
+    language: '言語',
+    english: 'English',
+    chinese: '简体中文',
+    japaneseLanguage: '日本語',
+    koreanLanguage: '한국어',
+    appearance: '外観',
+    profile: 'プロフィール',
+    viewProfile: 'プロフィールを表示',
+    editProfile: 'プロフィールを編集',
+    account: 'アカウント',
+    username: 'ユーザー名',
+    memberSince: '登録日',
+    about: 'について',
+    version: 'バージョン',
+    localAIMusicGenerator: 'ローカルAI音楽ジェネレーター',
+    poweredBy: 'ACE-Step 1.5を搭載。オープンソースで無料で使用できます。',
+    createdBy: '開発者 Ambsd',
+    localizedBy: 'ローカライゼーション＆二次開発 bdsqlsz',
+    follow: 'フォロー',
+    done: '完了',
+    light: 'ライト',
+    dark: 'ダーク',
+    
+    // Mobile
+    createSong: '曲を作成',
+    viewList: 'リストを表示',
+    
+    // CreatePanel - Modes
+    simple: 'シンプル',
+    custom: 'カスタム',
+    
+    // CreatePanel - Sections
+    audio: 'オーディオ',
+    lyrics: '歌詞',
+    styleOfMusic: '音楽スタイル',
+    title: 'タイトル',
+    musicParameters: '音楽パラメータ',
+    advancedSettings: '詳細設定',
+    
+    // CreatePanel - LoRA
+    loraPath: 'LoRA パス',
+    loraPathPlaceholder: 'LoRA モデルパスを入力...',
+    browseFiles: 'ファイルを参照',
+    loraLoaded: 'LoRA 読み込み済み',
+    loraUnloaded: 'LoRA 未読み込み',
+    loraLoad: '読み込む',
+    loraUnload: 'アンロード',
+    loraScale: 'LoRA スケール',
+    loraScaleDescription: 'LoRA モデルの影響強度を調整',
+    
+    // CreatePanel - Audio
+    reference: '参照',
+    cover: 'カバー',
+    fromLibrary: 'ライブラリから',
+    upload: 'アップロード',
+    
+    // CreatePanel - Lyrics
+    lyricsPlaceholder: 'ここに歌詞を入力...',
+    leaveLyricsEmpty: 'インストゥルメンタルの場合は空のままにするか、下のトグルを使用',
+    vocal: 'ボーカル',
+    instrumental: 'インストゥルメンタル',
+    vocalLanguage: 'ボーカル言語',
+    autoInstrumental: '自動 / インストゥルメンタル',
+    vocalArabic: 'アラビア語',
+    vocalAzerbaijani: 'アゼルバイジャン語',
+    vocalBulgarian: 'ブルガリア語',
+    vocalBengali: 'ベンガル語',
+    vocalCatalan: 'カタルーニャ語',
+    vocalCzech: 'チェコ語',
+    vocalDanish: 'デンマーク語',
+    vocalGerman: 'ドイツ語',
+    vocalGreek: 'ギリシャ語',
+    vocalEnglish: '英語',
+    vocalSpanish: 'スペイン語',
+    vocalPersian: 'ペルシャ語',
+    vocalFinnish: 'フィンランド語',
+    vocalFrench: 'フランス語',
+    vocalHebrew: 'ヘブライ語',
+    vocalHindi: 'ヒンディー語',
+    vocalCroatian: 'クロアチア語',
+    vocalHaitianCreole: 'ハイチ・クレオール語',
+    vocalHungarian: 'ハンガリー語',
+    vocalIndonesian: 'インドネシア語',
+    vocalIcelandic: 'アイスランド語',
+    vocalItalian: 'イタリア語',
+    vocalJapanese: '日本語',
+    vocalKorean: '韓国語',
+    vocalLatin: 'ラテン語',
+    vocalLithuanian: 'リトアニア語',
+    vocalMalay: 'マレー語',
+    vocalNepali: 'ネパール語',
+    vocalDutch: 'オランダ語',
+    vocalNorwegian: 'ノルウェー語',
+    vocalPunjabi: 'パンジャーブ語',
+    vocalPolish: 'ポーランド語',
+    vocalPortuguese: 'ポルトガル語',
+    vocalRomanian: 'ルーマニア語',
+    vocalRussian: 'ロシア語',
+    vocalSanskrit: 'サンスクリット語',
+    vocalSlovak: 'スロバキア語',
+    vocalSerbian: 'セルビア語',
+    vocalSwedish: 'スウェーデン語',
+    vocalSwahili: 'スワヒリ語',
+    vocalTamil: 'タミル語',
+    vocalTelugu: 'テルグ語',
+    vocalThai: 'タイ語',
+    vocalTagalog: 'タガログ語',
+    vocalTurkish: 'トルコ語',
+    vocalUkrainian: 'ウクライナ語',
+    vocalUrdu: 'ウルドゥー語',
+    vocalVietnamese: 'ベトナム語',
+    vocalCantonese: '広東語',
+    vocalChineseMandarin: '中国語（標準語）',
+    
+    // CreatePanel - Style
+    stylePlaceholder: '例：アップビートなポップロック、エモーショナルなバラード、90年代ヒップホップ',
+    genreMoodInstruments: 'ジャンル、ムード、楽器、雰囲気',
+    refreshGenres: 'ジャンル提案を更新',
+    mainGenre: 'メインジャンル',
+    subGenre: 'サブジャンル',
+    nameSong: '曲名を付ける',
+    
+    // CreatePanel - Parameters
+    bpm: 'BPM',
+    auto: '自動',
+    duration: '長さ',
+    seconds: '秒',
+    keyScale: 'キーとスケール',
+    timeSignature: '拍子',
+    
+    // CreatePanel - Advanced
+    randomSeed: 'ランダムシード',
+    thinking: '思考',
+    audioFormat: 'オーディオ形式',
+    inferenceSteps: '推論ステップ',
+    guidanceScale: 'ガイダンススケール',
+    inferMethod: '推論方法',
+    shift: 'シフト',
+    timestepShiftForBase: 'ベースモデルのタイムステップシフト（turboでは無効）',
+    expertControls: 'エキスパートコントロール',
+    lmParameters: 'LMパラメータ',
+    controlLyricGeneration: '歌詞生成と創造性を制御',
+    transform: '変換',
+    controlSourceAudio: 'モデルがソースオーディオに従う程度を制御',
+    audioCodes: 'オーディオコード',
+    optionalAudioCodes: 'オプションのオーディオコードペイロード',
+    taskType: 'タスクタイプ',
+    textToMusic: 'テキスト → 音楽',
+    audioCoverStrength: 'オーディオカバー強度',
+    repaintingStart: 'リペイント開始',
+    repaintingEnd: 'リペイント終了',
+    instruction: '指示',
+    lmTemperature: 'LM温度',
+    higherMoreRandom: '高いほどランダム（0-2）',
+    lmCfgScale: 'LM CFGスケール',
+    noCfgScale: '1.0 = CFGなし（1-3）',
+    topK: 'Top-K',
+    topP: 'Top-P',
+    lmNegativePrompt: 'LMネガティブプロンプト',
+    noUserInput: 'ユーザー入力なし',
+    thingsToAvoid: '避けるべきこと...',
+    useWhenCfgScaleGreater: 'LM CFGスケール > 1.0の場合に使用',
+    lmTopK: 'LM Top-K',
+    lmTopP: 'LM Top-P',
+    
+    // Guidance section
+    guidance: 'ガイダンス',
+    advancedCfgScheduling: '高度なCFGスケジューリング制御。',
+    cfgIntervalStart: 'CFG間隔開始',
+    cfgIntervalEnd: 'CFG間隔終了',
+    customTimesteps: 'カスタムタイムステップ',
+    timestepsPlaceholder: '例：1,3,5,7',
+    scoreScale: 'スコアスケール',
+    lmBatchChunkSize: 'LMバッチチャンクサイズ',
+    trackName: 'トラック名',
+    optionalTrackName: 'オプションのトラック名',
+    completeTrackClasses: '完全なトラッククラス',
+    trackClassesPlaceholder: 'クラス-a、クラス-b',
+    useAdg: 'ADGを使用',
+    allowLmBatch: 'LMバッチを許可',
+    useCotMetas: 'CoTメタを使用',
+    useCotCaption: 'CoTキャプションを使用',
+    useCotLanguage: 'CoT言語を使用',
+    autogen: '自動生成',
+    constrainedDecodingDebug: '制約付きデコーディングデバッグ',
+    formatCaption: 'キャプションをフォーマット',
+    getScores: 'スコアを取得',
+    getLrcLyrics: 'LRC（歌詞）を取得',
+    batchSize: 'バッチサイズ（バリエーション）',
+    variations: 'バリエーション',
+    bulkGenerate: '一括生成',
+    job: 'ジョブ',
+    jobs: 'ジョブ',
+    queueMultipleJobs: '同じ設定で複数の独立した生成ジョブをキューに追加',
+    numberOfVariations: '生成する曲のバリエーション数',
+    moreStepsBetterQuality: 'ステップが多いほど品質が高く、遅くなります（turboには8を推奨）',
+    howCloselyFollowPrompt: 'プロンプトにどれだけ忠実に従うか',
+    seed: 'シード',
+    randomSeedRecommended: '毎回ランダム化（推奨）',
+    fixedSeedReproducible: '再現可能な結果のための固定シード',
+    enterFixedSeed: '固定シードを入力',
+    thinkingCot: '思考（CoT）',
+    mp3Smaller: 'MP3（小さい）',
+    flacLossless: 'FLAC（ロスレス）',
+    odeDeterministic: 'ODE（決定論的）',
+    sdeStochastic: 'SDE（確率的）',
+    min: '分',
+    
+    // CreatePanel - Drag & Drop
+    dropToUseAudio: 'ドロップしてオーディオを使用',
+    dropToUpload: 'ドロップしてアップロード',
+    usingAsReference: '参照として使用',
+    usingAsCover: 'カバーとして使用',
+    uploadingAsReference: '参照としてアップロード',
+    uploadingAsCover: 'カバーとしてアップロード',
+    
+    // CreatePanel - Vocal Gender
+    vocalGender: 'ボーカルの性別',
+    male: '男性',
+    female: '女性',
+    
+    // CreatePanel - LM Backend & Model
+    lmBackendLabel: 'LMバックエンド',
+    lmBackendPt: 'PT（〜1.6 GB VRAM）',
+    lmBackendVllm: 'VLLM（〜9.2 GB VRAM）',
+    lmBackendHint: 'PTはVRAMが少なく、VLLMは高性能GPUで高速',
+    lmModelLabel: 'LMモデル',
+    lmModel06B: '0.6B（最軽量、〜0.5 GB VRAM）',
+    lmModel17B: '1.7B（バランス、〜1.5 GB VRAM）',
+    lmModel4B: '4B（最高品質、〜4 GB VRAM）',
+    lmModelHint: '歌詞/スタイル強化に使用するLLMを制御。未インストールの場合自動ダウンロード。',
+    
+    // CreatePanel - Transcription
+    transcribing: '文字起こし中...',
+    transcribingWithWhisper: 'Whisperで文字起こし中…',
+    
+    // CreatePanel - Library Tabs
+    uploaded: 'アップロード済み',
+    createdTab: '作成済み',
+    useTrack: '使用',
+    noCreatedSongsYet: '作成した曲がまだありません',
+    generateSongsToReuse: '曲を生成してカバーや参照として再利用',
+    
+    // CreatePanel - Actions
+    generate: '生成',
+    generating: '生成中...',
+    createButton: '作成',
+    formatLyrics: '歌詞をフォーマット',
+    formatting: 'フォーマット中...',
+    clearAll: 'すべてクリア',
+    
+    // Simple Mode
+    describeYourSong: '曲を説明',
+    songDescriptionPlaceholder: '友達との夏の冒険についての明るいポップソング...',
+    quickSettings: 'クイック設定',
+    key: 'キー',
+    time: '拍子',
+    
+    // CreatePanel - Errors
+    loginToGenerate: '音楽を生成するにはログインしてください',
+    uploadFailed: 'アップロードに失敗しました',
+    formatFailed: 'フォーマットに失敗しました',
+    formatFailedDetail: 'フォーマットに失敗しました。LLMが初期化されていることを確認してください。',
+    formatFailedLlmUnavailable: 'フォーマットに失敗しました。LLMが利用できない可能性があります。',
+    deleteSongConfirm: '「{title}」を削除しますか？この操作は元に戻せません。',
+    profileUpdateFailed: 'プロフィールの更新に失敗しました',
+    ffmpegLoadFailed: 'ビデオエンコーダーの読み込みに失敗しました。更新してもう一度お試しください。',
+    videoRenderFailed: 'ビデオレンダリングに失敗しました。もう一度お試しください。',
+    
+    // SongList / Filters
+    searchYourSongs: '曲を検索...',
+    filters: 'フィルター',
+    refineBy: '絞り込み',
+    liked: 'いいね',
+    public: '公開',
+    private: '非公開',
+    generatingStatus: '生成中',
+    selectSongToView: '詳細を表示する曲を選択',
+    noSongsMatchFilters: 'フィルターに一致する曲がありません。',
+    clearFilters: 'フィルターをクリア',
+    
+    // RightSidebar - Song Details
+    songDetails: '曲の詳細',
+    created: '作成日',
+    styleTags: 'スタイルとタグ',
+    lyricsSection: '歌詞',
+    copyLyrics: 'コピー',
+    
+    // Languages
+    japanese: '日本語',
+    spanish: 'スペイン語',
+    german: 'ドイツ語',
+    french: 'フランス語',
+    portuguese: 'ポルトガル語',
+    russian: 'ロシア語',
+    italian: 'イタリア語',
+    dutch: 'オランダ語',
+    polish: 'ポーランド語',
+    turkish: 'トルコ語',
+    vietnamese: 'ベトナム語',
+    czech: 'チェコ語',
+    persian: 'ペルシャ語',
+    arabic: 'アラビア語',
+    korean: '韓国語',
+    thai: 'タイ語',
+    hindi: 'ヒンディー語',
+    indonesian: 'インドネシア語',
+    ukrainian: 'ウクライナ語',
+    hungarian: 'ハンガリー語',
+    swedish: 'スウェーデン語',
+    romanian: 'ルーマニア語',
+    greek: 'ギリシャ語',
+    
+    // Task Types
+    audio2audio: 'オーディオ → オーディオ',
+    coverTask: 'カバー',
+    repaintTask: 'リペイント',
+    
+    // Search Page
+    searchSongsPlaceholder: '曲、プレイリスト、クリエイター、スタイルを検索',
+    songsMatching: '一致する曲',
+    featuredSongs: '注目の曲',
+    noSongsFound: '一致する曲が見つかりません',
+    creatorsMatching: '一致するクリエイター',
+    featuredCreators: '注目のクリエイター',
+    noCreatorsFound: '一致するクリエイターが見つかりません',
+    noCreatorsYet: 'まだクリエイターがいません。最初に音楽を共有しましょう！',
+    playlistsMatching: '一致するプレイリスト',
+    featuredPlaylists: '注目のプレイリスト',
+    noPlaylistsFound: '一致するプレイリストが見つかりません',
+    noPlaylistsYet: '公開プレイリストがまだありません。作成してお気に入りを共有しましょう！',
+    genres: 'ジャンル',
+    songs: '曲',
+    
+    // Library View
+    yourLibrary: 'マイライブラリ',
+    newPlaylist: '新しいプレイリスト',
+    likedSongs: 'いいねした曲',
+    playlists: 'プレイリスト',
+    playlist: 'プレイリスト',
+    byYou: 'あなたが作成',
+    
+    // User Profile
+    back: '戻る',
+    loadingProfile: '読み込み中...',
+    userNotFound: 'ユーザーが見つかりません',
+    goBack: '戻る',
+    likes: 'いいね',
+    plays: '再生回数',
+    recent: '最新',
+    top: '人気',
+    noPublicSongsYet: '公開曲がまだありません',
+    seeMore: 'もっと見る',
+    joined: '参加日',
+    supportingSince: 'サポート開始',
+    avatarImage: 'アバター画像',
+    uploadAvatar: 'アバターをアップロード',
+    avatarFormats: 'JPG、PNG、WebP、GIF • 最大5MB',
+    bannerImage: 'バナー画像',
+    clickToUploadBanner: 'クリックしてバナーをアップロード',
+    bannerFormats: '推奨サイズ：1500x500px • JPG、PNG、WebP、GIF • 最大5MB',
+    bio: '自己紹介',
+    bioPlaceholder: '自己紹介を書いてください...',
+    uploadingAvatar: 'アバターをアップロード中...',
+    uploadingBanner: 'バナーをアップロード中...',
+    saving: '保存中...',
+    saveChanges: '変更を保存',
+    
+    // Playlist Modals
+    createPlaylist: 'プレイリストを作成',
+    playlistName: '名前',
+    playlistNamePlaceholder: '私の素晴らしいプレイリスト',
+    playlistDescription: '説明',
+    descriptionPlaceholder: 'コーディング時の雰囲気...',
+    addToPlaylist: 'プレイリストに追加',
+    createNewPlaylist: '新しいプレイリストを作成',
+    noExistingPlaylists: 'プレイリストがまだありません。',
+    
+    // Edit Profile Modal (Settings)
+    usernameLabel: 'ユーザー名',
+    usernamePlaceholder: 'ユーザー名',
+    usernameMinLengthError: 'ユーザー名は2文字以上である必要があります',
+    usernameTakenError: 'このユーザー名は既に使用されています',
+    usernameUpdateFailedError: 'ユーザー名の更新に失敗しました',
+    usernameRequirements: '文字、数字、アンダースコア、ハイフンのみ使用可能',
+    
+    // Song Details (RightSidebar)
+    more: 'もっと',
+    copy: 'コピー',
+    copied: 'コピーしました！',
+    copyAllTags: 'すべてのタグをコピー',
+    
+    // Song Dropdown Menu
+    createVideo: 'ビデオを作成',
+    editAudio: 'オーディオを編集',
+    extractStems: 'ステムを抽出',
+    reusePrompt: 'プロンプトを再利用',
+    deleteSong: '曲を削除',
+    useAsReference: '参照として使用',
+    coverSong: 'カバーソング',
+    confirmDeleteTitle: '曲を削除',
+    confirmDeleteManyTitle: '曲を削除',
+    deleteSongsConfirm: '{count}曲を削除しますか？この操作は元に戻せません。',
+    songsDeletedSuccess: '曲を削除しました',
+    songsDeletedPartial: '{succeeded}/{total}曲を削除しました',
+    deleteUploadConfirm: 'このアップロードを削除しますか？この操作は元に戻せません。',
+    cannotBeUndone: 'この操作は元に戻せません。',
+    
+    // Player
+    nowPlaying: '再生中',
+    downloadAudio: 'オーディオをダウンロード',
+    openInEditor: 'エディターで開く',
+    anonymous: '匿名ユーザー',
+    
+    // PlaylistDetail
+    loadingPlaylist: 'プレイリストを読み込み中...',
+    playlistNotFound: 'プレイリストが見つかりません',
+    deletePlaylistConfirm: 'このプレイリストを削除してもよろしいですか？',
+    dateAdded: '追加日',
+    justNow: 'たった今',
+    unknown: '不明',
+    
+    // SongProfile
+    loadingSong: '曲を読み込み中...',
+    songNotFound: '曲が見つかりません',
+    similar: '類似',
+    by: '作成者',
+    
+    // ShareModal
+    shareSong: '曲を共有',
+    shareOnX: 'Xで共有',
+    shareOnFacebook: 'Facebookで共有',
+    shareOnWhatsApp: 'WhatsAppで共有',
+    shareOnTelegram: 'Telegramで共有',
+    shareOnReddit: 'Redditで共有',
+    shareOnLinkedIn: 'LinkedInで共有',
+    shareViaEmail: 'メールで共有',
+    copyLink: 'リンクをコピー',
+    emailSubject: 'このAI曲をチェックしてください',
+    emailBody: 'こんにちは！\n\n私がこのAI生成の曲を作りました。気に入ってもらえると思います：\n\n「{title}」by {creator}\n{style}\n\nここで聴いてください：{url}\n\nACE-Step UIで作成 - 無料でオープンソースのローカルAI音楽生成！',
+    
+    // Reference Modal
+    referenceModalTitle: 'リファレンス',
+    coverModalTitle: 'カバー',
+    referenceModalDescription: 'リファレンストラックに触発された曲を作成',
+    coverModalDescription: '既存のトラックを新しいバージョンに変換',
+    uploadAudio: 'オーディオをアップロード',
+    uploadingAudio: 'アップロード中...',
+    audioFormats: 'MP3、WAV、FLAC',
+    mine: 'マイトラック',
+    loadingTracks: '読み込み中...',
+    noTracksYet: 'トラックがまだありません',
+    uploadAudioFilesAsReferences: 'リファレンスとして使用するオーディオファイルをアップロード',
+    
+    // Training Module
+    loraTraining: 'LoRAトレーニング',
+    trainingDescription: 'オーディオファイルからデータセットを構築し、カスタムLoRAアダプターをトレーニング',
+    datasetBuilder: 'データセットビルダー',
+    trainLora: 'LoRAをトレーニング',
+    quickStart: 'クイックスタート',
+    chooseOneOption: '選択：既存のデータセットを読み込む または 新しいディレクトリをスキャン',
+    loadExistingDataset: '既存のデータセットを読み込む',
+    loadDataset: '読み込む',
+    scanNewDirectory: '新しいディレクトリをスキャン',
+    scanDataset: 'スキャン',
+    datasetSettings: 'データセット設定',
+    datasetName: 'データセット名',
+    customActivationTag: 'カスタム活性化タグ',
+    allInstrumental: '全てインストゥルメンタル',
+    tagPosition: 'タグの位置',
+    tagPrepend: '前置（タグ、キャプション）',
+    tagAppend: '後置（キャプション、タグ）',
+    tagReplace: 'キャプションを置換',
+    genreRatio: 'ジャンル比率',
+    genreRatioHint: '0% = 全てキャプション、100% = 全てジャンル',
+    autoLabelWithAI: 'AIで自動ラベル付け',
+    autoLabelDescription: 'オーディオファイルのメタデータを生成：キャプション、BPM、キー、拍子',
+    skipMetas: 'BPM/キー/拍子をスキップ',
+    onlyUnlabeled: 'ラベルなしのみ',
+    autoLabelAll: '全て自動ラベル付け',
+    filename: 'ファイル名',
+    labeled: 'ラベル付き',
+    saveDataset: 'データセットを保存',
+    preprocessToTensors: 'テンソルに前処理',
+    preprocessDescription: 'データセットを事前計算されたテンソルに変換して高速トレーニング（モデルのロードが必要）',
+    preprocess: '前処理',
+    preprocessedDataset: '前処理済みデータセット',
+    loraSettings: 'LoRA設定',
+    loraRank: 'LoRAランク',
+    loraAlpha: 'LoRA Alpha',
+    dropout: 'ドロップアウト',
+    trainingParameters: 'トレーニングパラメータ',
+    learningRate: '学習率',
+    maxEpochs: '最大エポック数',
+    gradientAccumulation: '勾配累積',
+    saveEvery: '保存間隔',
+    epochs: 'エポック',
+    outputDirectory: '出力ディレクトリ',
+    useFP8: 'FP8量子化を使用',
+    fp8Description: 'VRAMを削減',
+    startTraining: 'トレーニング開始',
+    stopTraining: 'トレーニング停止',
+    trainingProgress: 'トレーニング進行状況',
+    trainingLog: 'トレーニングログ',
+    trainingStatus: 'トレーニングステータス',
+    tensorboardView: 'TensorBoardビュー',
+    showTensorboard: 'TensorBoardを表示',
+    hideTensorboard: 'TensorBoardを非表示',
+    openInNewTab: '新しいタブで開く',
+    
+    // Training Status Messages
+    scanning: 'スキャン中...',
+    autoLabeling: '自動ラベル付け中...',
+    savingDataset: '保存中...',
+    preprocessing: '前処理中...',
+    loadingDataset: '読み込み中...',
+    startingTraining: '開始中...',
+    error: 'エラー',
+    datasetInfo: 'データセット: {name}、サンプル数: {samples}、ラベル付き: {labeled}',
+    trainingStep: 'ステップ {step} - 損失: {loss}',
+    editSample: 'サンプルを編集',
+    caption: 'キャプション',
+    genre: 'ジャンル',
+    promptOverride: 'プロンプト上書き',
+    musicDescription: '音楽の説明...',
+    overrideGlobalRatio: 'このサンプルのグローバル比率を上書き',
+    editableUsedForTraining: '編集可能、トレーニングに使用',
+    useGlobalRatio: 'グローバル比率を使用',
+    thisSample: 'このサンプル',
+  },
+  ko: {
+    // Navigation
+    create: '생성',
+    library: '라이브러리',
+    search: '검색',
+    training: '훈련',
+    
+    // Theme
+    lightMode: '라이트 모드',
+    darkMode: '다크 모드',
+    
+    // Auth
+    signIn: '로그인',
+    signOut: '로그아웃',
+    settings: '설정',
+    
+    // Username Modal
+    welcomeTitle: 'ACE-Step UI에 오신 것을 환영합니다',
+    welcomeSubtitle: 'AI 음악 제작을 시작하려면 이름을 입력하세요',
+    yourName: '이름',
+    enterYourName: '이름 입력',
+    getStarted: '시작하기',
+    gettingStarted: '시작 중...',
+    yourMusicYourWay: '당신의 음악, 당신만의 방식으로. 무료로 무제한 AI 음악 제작.',
+    usernameMinLength: '사용자 이름은 최소 2자 이상이어야 합니다',
+    usernameInvalidChars: '사용자 이름은 문자, 숫자, 밑줄, 하이픈만 사용할 수 있습니다',
+    failedToSetUsername: '사용자 이름 설정에 실패했습니다',
+    
+    // Toasts
+    songNotAvailable: '이 곡은 더 이상 사용할 수 없습니다.',
+    unableToPlay: '이 곡을 재생할 수 없습니다.',
+    generationTimedOut: '생성 시간 초과',
+    generationFailed: '생성에 실패했습니다. 다시 시도해주세요.',
+    playlistCreated: '재생목록이 생성되었습니다!',
+    failedToCreatePlaylist: '재생목록 생성에 실패했습니다',
+    songAddedToPlaylist: '재생목록에 추가되었습니다',
+    failedToAddSong: '곡 추가에 실패했습니다',
+    songDeleted: '곡이 삭제되었습니다',
+    failedToDeleteSong: '곡 삭제에 실패했습니다',
+    
+    // Sidebar
+    aceStepUI: 'ACE-Step UI',
+    
+    // Common
+    cancel: '취소',
+    save: '저장',
+    delete: '삭제',
+    edit: '편집',
+    share: '공유',
+    download: '다운로드',
+    play: '재생',
+    pause: '일시정지',
+    normalSpeed: '보통',
+    next: '다음',
+    previous: '이전',
+    
+    // Placeholders
+    searchPlaceholder: '검색...',
+    
+    // Settings
+    language: '언어',
+    english: 'English',
+    chinese: '简体中文',
+    japaneseLanguage: '日本語',
+    koreanLanguage: '한국어',
+    appearance: '외관',
+    profile: '프로필',
+    viewProfile: '프로필 보기',
+    editProfile: '프로필 편집',
+    account: '계정',
+    username: '사용자 이름',
+    memberSince: '가입일',
+    about: '정보',
+    version: '버전',
+    localAIMusicGenerator: '로컬 AI 음악 생성기',
+    poweredBy: 'ACE-Step 1.5 기반. 오픈 소스이며 무료로 사용 가능합니다.',
+    createdBy: '개발자 Ambsd',
+    localizedBy: '현지화 및 2차 개발 bdsqlsz',
+    follow: '팔로우',
+    done: '완료',
+    light: '라이트',
+    dark: '다크',
+    
+    // Mobile
+    createSong: '곡 만들기',
+    viewList: '목록 보기',
+    
+    // CreatePanel - Modes
+    simple: '간단',
+    custom: '사용자 정의',
+    
+    // CreatePanel - Sections
+    audio: '오디오',
+    lyrics: '가사',
+    styleOfMusic: '음악 스타일',
+    title: '제목',
+    musicParameters: '음악 매개변수',
+    advancedSettings: '고급 설정',
+    
+    // CreatePanel - LoRA
+    loraPath: 'LoRA 경로',
+    loraPathPlaceholder: 'LoRA 모델 경로 입력...',
+    browseFiles: '파일 찾아보기',
+    loraLoaded: 'LoRA 로드됨',
+    loraUnloaded: 'LoRA 언로드됨',
+    loraLoad: '로드',
+    loraUnload: '언로드',
+    loraScale: 'LoRA 강도',
+    loraScaleDescription: 'LoRA 모델의 영향 강도 조절',
+    
+    // CreatePanel - Audio
+    reference: '참조',
+    cover: '커버',
+    fromLibrary: '라이브러리에서',
+    upload: '업로드',
+    
+    // CreatePanel - Lyrics
+    lyricsPlaceholder: '여기에 가사를 입력하세요...',
+    leaveLyricsEmpty: '연주곡의 경우 비워두거나 아래 토글 사용',
+    vocal: '보컬',
+    instrumental: '연주곡',
+    vocalLanguage: '보컬 언어',
+    autoInstrumental: '자동 / 연주곡',
+    vocalArabic: '아랍어',
+    vocalAzerbaijani: '아제르바이잔어',
+    vocalBulgarian: '불가리아어',
+    vocalBengali: '벵골어',
+    vocalCatalan: '카탈루냐어',
+    vocalCzech: '체코어',
+    vocalDanish: '덴마크어',
+    vocalGerman: '독일어',
+    vocalGreek: '그리스어',
+    vocalEnglish: '영어',
+    vocalSpanish: '스페인어',
+    vocalPersian: '페르시아어',
+    vocalFinnish: '핀란드어',
+    vocalFrench: '프랑스어',
+    vocalHebrew: '히브리어',
+    vocalHindi: '힌디어',
+    vocalCroatian: '크로아티아어',
+    vocalHaitianCreole: '아이티 크레올어',
+    vocalHungarian: '헝가리어',
+    vocalIndonesian: '인도네시아어',
+    vocalIcelandic: '아이슬란드어',
+    vocalItalian: '이탈리아어',
+    vocalJapanese: '일본어',
+    vocalKorean: '한국어',
+    vocalLatin: '라틴어',
+    vocalLithuanian: '리투아니아어',
+    vocalMalay: '말레이어',
+    vocalNepali: '네팔어',
+    vocalDutch: '네덜란드어',
+    vocalNorwegian: '노르웨이어',
+    vocalPunjabi: '펀자브어',
+    vocalPolish: '폴란드어',
+    vocalPortuguese: '포르투갈어',
+    vocalRomanian: '루마니아어',
+    vocalRussian: '러시아어',
+    vocalSanskrit: '산스크리트어',
+    vocalSlovak: '슬로바키아어',
+    vocalSerbian: '세르비아어',
+    vocalSwedish: '스웨덴어',
+    vocalSwahili: '스와힐리어',
+    vocalTamil: '타밀어',
+    vocalTelugu: '텔루구어',
+    vocalThai: '태국어',
+    vocalTagalog: '타갈로그어',
+    vocalTurkish: '터키어',
+    vocalUkrainian: '우크라이나어',
+    vocalUrdu: '우르두어',
+    vocalVietnamese: '베트남어',
+    vocalCantonese: '광둥어',
+    vocalChineseMandarin: '중국어（표준어）',
+    
+    // CreatePanel - Style
+    stylePlaceholder: '예: 경쾌한 팝 록, 감성적인 발라드, 90년대 힙합',
+    genreMoodInstruments: '장르, 분위기, 악기, 느낌',
+    refreshGenres: '장르 제안 새로고침',
+    mainGenre: '주요 장르',
+    subGenre: '하위 장르',
+    nameSong: '곡 이름 짓기',
+    
+    // CreatePanel - Parameters
+    bpm: 'BPM',
+    auto: '자동',
+    duration: '길이',
+    seconds: '초',
+    keyScale: '키와 스케일',
+    timeSignature: '박자',
+    
+    // CreatePanel - Advanced
+    randomSeed: '랜덤 시드',
+    thinking: '생각',
+    audioFormat: '오디오 형식',
+    inferenceSteps: '추론 단계',
+    guidanceScale: '가이던스 스케일',
+    inferMethod: '추론 방법',
+    shift: '시프트',
+    timestepShiftForBase: '베이스 모델의 타임스텝 시프트 (turbo에서는 무효)',
+    expertControls: '전문가 제어',
+    lmParameters: 'LM 매개변수',
+    controlLyricGeneration: '가사 생성과 창의성 제어',
+    transform: '변환',
+    controlSourceAudio: '모델이 소스 오디오를 따르는 정도를 제어',
+    audioCodes: '오디오 코드',
+    optionalAudioCodes: '선택적 오디오 코드 페이로드',
+    taskType: '작업 유형',
+    textToMusic: '텍스트 → 음악',
+    audioCoverStrength: '오디오 커버 강도',
+    repaintingStart: '리페인팅 시작',
+    repaintingEnd: '리페인팅 종료',
+    instruction: '지시',
+    lmTemperature: 'LM 온도',
+    higherMoreRandom: '높을수록 랜덤 (0-2)',
+    lmCfgScale: 'LM CFG 스케일',
+    noCfgScale: '1.0 = CFG 없음 (1-3)',
+    topK: 'Top-K',
+    topP: 'Top-P',
+    lmNegativePrompt: 'LM 네거티브 프롬프트',
+    noUserInput: '사용자 입력 없음',
+    thingsToAvoid: '피해야 할 것들...',
+    useWhenCfgScaleGreater: 'LM CFG 스케일 > 1.0일 때 사용',
+    lmTopK: 'LM Top-K',
+    lmTopP: 'LM Top-P',
+    
+    // Guidance section
+    guidance: '가이던스',
+    advancedCfgScheduling: '고급 CFG 스케줄링 제어.',
+    cfgIntervalStart: 'CFG 간격 시작',
+    cfgIntervalEnd: 'CFG 간격 종료',
+    customTimesteps: '사용자 정의 타임스텝',
+    timestepsPlaceholder: '예: 1,3,5,7',
+    scoreScale: '스코어 스케일',
+    lmBatchChunkSize: 'LM 배치 청크 크기',
+    trackName: '트랙 이름',
+    optionalTrackName: '선택적 트랙 이름',
+    completeTrackClasses: '완전한 트랙 클래스',
+    trackClassesPlaceholder: '클래스-a, 클래스-b',
+    useAdg: 'ADG 사용',
+    allowLmBatch: 'LM 배치 허용',
+    useCotMetas: 'CoT 메타 사용',
+    useCotCaption: 'CoT 캡션 사용',
+    useCotLanguage: 'CoT 언어 사용',
+    autogen: '자동 생성',
+    constrainedDecodingDebug: '제약 디코딩 디버그',
+    formatCaption: '캡션 포맷',
+    getScores: '점수 가져오기',
+    getLrcLyrics: 'LRC(가사) 가져오기',
+    batchSize: '배치 크기 (변형)',
+    variations: '변형',
+    bulkGenerate: '대량 생성',
+    job: '작업',
+    jobs: '작업',
+    queueMultipleJobs: '동일한 설정으로 여러 독립 생성 작업 대기열에 추가',
+    numberOfVariations: '생성할 곡 변형 수',
+    moreStepsBetterQuality: '단계가 많을수록 품질이 높고 느립니다 (turbo는 8 권장)',
+    howCloselyFollowPrompt: '프롬프트를 얼마나 엄격히 따를지',
+    seed: '시드',
+    randomSeedRecommended: '매 실행마다 무작위 (권장)',
+    fixedSeedReproducible: '재현 가능한 결과를 위한 고정 시드',
+    enterFixedSeed: '고정 시드 입력',
+    thinkingCot: '생각 (CoT)',
+    mp3Smaller: 'MP3 (작음)',
+    flacLossless: 'FLAC (무손실)',
+    odeDeterministic: 'ODE (결정론적)',
+    sdeStochastic: 'SDE (확률적)',
+    min: '분',
+    
+    // CreatePanel - Drag & Drop
+    dropToUseAudio: '드롭하여 오디오 사용',
+    dropToUpload: '드롭하여 업로드',
+    usingAsReference: '참조로 사용',
+    usingAsCover: '커버로 사용',
+    uploadingAsReference: '참조로 업로드',
+    uploadingAsCover: '커버로 업로드',
+    
+    // CreatePanel - Vocal Gender
+    vocalGender: '보컬 성별',
+    male: '남성',
+    female: '여성',
+    
+    // CreatePanel - LM Backend & Model
+    lmBackendLabel: 'LM 백엔드',
+    lmBackendPt: 'PT (~1.6 GB VRAM)',
+    lmBackendVllm: 'VLLM (~9.2 GB VRAM)',
+    lmBackendHint: 'PT는 VRAM이 적고, VLLM은 고성능 GPU에서 더 빠름',
+    lmModelLabel: 'LM 모델',
+    lmModel06B: '0.6B (가장 가벼움, ~0.5 GB VRAM)',
+    lmModel17B: '1.7B (균형, ~1.5 GB VRAM)',
+    lmModel4B: '4B (최고 품질, ~4 GB VRAM)',
+    lmModelHint: '가사/스타일 향상에 사용되는 LLM을 제어. 없으면 자동 다운로드.',
+    
+    // CreatePanel - Transcription
+    transcribing: '전사 중...',
+    transcribingWithWhisper: 'Whisper로 전사 중…',
+    
+    // CreatePanel - Library Tabs
+    uploaded: '업로드됨',
+    createdTab: '생성됨',
+    useTrack: '사용',
+    noCreatedSongsYet: '생성된 곡이 아직 없습니다',
+    generateSongsToReuse: '곡을 생성하여 커버나 참조로 재사용',
+    
+    // CreatePanel - Actions
+    generate: '생성',
+    generating: '생성 중...',
+    createButton: '만들기',
+    formatLyrics: '가사 포맷',
+    formatting: '포맷 중...',
+    clearAll: '모두 지우기',
+    
+    // Simple Mode
+    describeYourSong: '곡 설명',
+    songDescriptionPlaceholder: '친구들과 여름 모험에 대한 밝은 팝송...',
+    quickSettings: '빠른 설정',
+    key: '키',
+    time: '박자',
+    
+    // CreatePanel - Errors
+    loginToGenerate: '음악을 생성하려면 로그인하세요',
+    uploadFailed: '업로드 실패',
+    formatFailed: '포맷 실패',
+    formatFailedDetail: '포맷 실패. LLM이 초기화되었는지 확인하세요.',
+    formatFailedLlmUnavailable: '포맷 실패. LLM을 사용할 수 없을 수 있습니다.',
+    deleteSongConfirm: '「{title}」을(를) 삭제하시겠습니까? 이 작업은 되돌릴 수 없습니다.',
+    profileUpdateFailed: '프로필 업데이트에 실패했습니다',
+    ffmpegLoadFailed: '비디오 인코더 로드에 실패했습니다. 새로고침 후 다시 시도하세요.',
+    videoRenderFailed: '비디오 렌더링에 실패했습니다. 다시 시도하세요.',
+    
+    // SongList / Filters
+    searchYourSongs: '곡 검색...',
+    filters: '필터',
+    refineBy: '세분화',
+    liked: '좋아요',
+    public: '공개',
+    private: '비공개',
+    generatingStatus: '생성 중',
+    selectSongToView: '세부 정보를 볼 곡 선택',
+    noSongsMatchFilters: '필터와 일치하는 곡이 없습니다.',
+    clearFilters: '필터 지우기',
+    
+    // RightSidebar - Song Details
+    songDetails: '곡 상세정보',
+    created: '생성일',
+    styleTags: '스타일 및 태그',
+    lyricsSection: '가사',
+    copyLyrics: '복사',
+    
+    // Languages
+    japanese: '일본어',
+    spanish: '스페인어',
+    german: '독일어',
+    french: '프랑스어',
+    portuguese: '포르투갈어',
+    russian: '러시아어',
+    italian: '이탈리아어',
+    dutch: '네덜란드어',
+    polish: '폴란드어',
+    turkish: '터키어',
+    vietnamese: '베트남어',
+    czech: '체코어',
+    persian: '페르시아어',
+    arabic: '아랍어',
+    korean: '한국어',
+    thai: '태국어',
+    hindi: '힌디어',
+    indonesian: '인도네시아어',
+    ukrainian: '우크라이나어',
+    hungarian: '헝가리어',
+    swedish: '스웨덴어',
+    romanian: '루마니아어',
+    greek: '그리스어',
+    
+    // Task Types
+    audio2audio: '오디오 → 오디오',
+    coverTask: '커버',
+    repaintTask: '리페인트',
+    
+    // Search Page
+    searchSongsPlaceholder: '곡, 재생목록, 제작자 또는 스타일 검색',
+    songsMatching: '일치하는 곡',
+    featuredSongs: '추천 곡',
+    noSongsFound: '일치하는 곡을 찾을 수 없습니다',
+    creatorsMatching: '일치하는 제작자',
+    featuredCreators: '추천 제작자',
+    noCreatorsFound: '일치하는 제작자를 찾을 수 없습니다',
+    noCreatorsYet: '아직 제작자가 없습니다. 음악을 공유하는 첫 번째 사람이 되세요!',
+    playlistsMatching: '일치하는 재생목록',
+    featuredPlaylists: '추천 재생목록',
+    noPlaylistsFound: '일치하는 재생목록을 찾을 수 없습니다',
+    noPlaylistsYet: '공개 재생목록이 아직 없습니다. 만들고 즐겨찾기를 공유하세요!',
+    genres: '장르',
+    songs: '곡',
+    
+    // Library View
+    yourLibrary: '내 라이브러리',
+    newPlaylist: '새 재생목록',
+    likedSongs: '좋아하는 곡',
+    playlists: '재생목록',
+    playlist: '재생목록',
+    byYou: '내가 만든',
+    
+    // User Profile
+    back: '뒤로',
+    loadingProfile: '로딩 중...',
+    userNotFound: '사용자를 찾을 수 없습니다',
+    goBack: '뒤로 가기',
+    likes: '좋아요',
+    plays: '재생 수',
+    recent: '최신',
+    top: '인기',
+    noPublicSongsYet: '공개 곡이 아직 없습니다',
+    seeMore: '더 보기',
+    joined: '가입일',
+    supportingSince: '후원 시작일',
+    avatarImage: '아바타 이미지',
+    uploadAvatar: '아바타 업로드',
+    avatarFormats: 'JPG, PNG, WebP, GIF • 최대 5MB',
+    bannerImage: '배너 이미지',
+    clickToUploadBanner: '클릭하여 배너 업로드',
+    bannerFormats: '권장 크기: 1500x500px • JPG, PNG, WebP, GIF • 최대 5MB',
+    bio: '자기소개',
+    bioPlaceholder: '자신에 대해 소개하세요...',
+    uploadingAvatar: '아바타 업로드 중...',
+    uploadingBanner: '배너 업로드 중...',
+    saving: '저장 중...',
+    saveChanges: '변경 사항 저장',
+    
+    // Playlist Modals
+    createPlaylist: '재생목록 만들기',
+    playlistName: '이름',
+    playlistNamePlaceholder: '내 멋진 재생목록',
+    playlistDescription: '설명',
+    descriptionPlaceholder: '코딩할 때 듣는 음악...',
+    addToPlaylist: '재생목록에 추가',
+    createNewPlaylist: '새 재생목록 만들기',
+    noExistingPlaylists: '재생목록이 아직 없습니다.',
+    
+    // Edit Profile Modal (Settings)
+    usernameLabel: '사용자 이름',
+    usernamePlaceholder: '사용자 이름',
+    usernameMinLengthError: '사용자 이름은 최소 2자 이상이어야 합니다',
+    usernameTakenError: '이 사용자 이름은 이미 사용 중입니다',
+    usernameUpdateFailedError: '사용자 이름 업데이트에 실패했습니다',
+    usernameRequirements: '문자, 숫자, 밑줄, 하이픈만 허용됨',
+    
+    // Song Details (RightSidebar)
+    more: '더보기',
+    copy: '복사',
+    copied: '복사됨!',
+    copyAllTags: '모든 태그 복사',
+    
+    // Song Dropdown Menu
+    createVideo: '비디오 만들기',
+    editAudio: '오디오 편집',
+    extractStems: '스템 추출',
+    reusePrompt: '프롬프트 재사용',
+    deleteSong: '곡 삭제',
+    useAsReference: '참조로 사용',
+    coverSong: '커버 곡',
+    confirmDeleteTitle: '곡 삭제',
+    confirmDeleteManyTitle: '곡 삭제',
+    deleteSongsConfirm: '{count}곡을 삭제하시겠습니까? 이 작업은 되돌릴 수 없습니다.',
+    songsDeletedSuccess: '곡이 삭제되었습니다',
+    songsDeletedPartial: '{succeeded}/{total}곡 삭제됨',
+    deleteUploadConfirm: '이 업로드를 삭제하시겠습니까? 이 작업은 되돌릴 수 없습니다.',
+    cannotBeUndone: '이 작업은 되돌릴 수 없습니다.',
+    
+    // Player
+    nowPlaying: '재생 중',
+    downloadAudio: '오디오 다운로드',
+    openInEditor: '편집기에서 열기',
+    anonymous: '익명 사용자',
+    
+    // PlaylistDetail
+    loadingPlaylist: '재생목록 로딩 중...',
+    playlistNotFound: '재생목록을 찾을 수 없습니다',
+    deletePlaylistConfirm: '이 재생목록을 삭제하시겠습니까?',
+    dateAdded: '추가일',
+    justNow: '방금',
+    unknown: '알 수 없음',
+    
+    // SongProfile
+    loadingSong: '곡 로딩 중...',
+    songNotFound: '곡을 찾을 수 없습니다',
+    similar: '유사',
+    by: '제작자',
+    
+    // ShareModal
+    shareSong: '곡 공유',
+    shareOnX: 'X에서 공유',
+    shareOnFacebook: 'Facebook에서 공유',
+    shareOnWhatsApp: 'WhatsApp에서 공유',
+    shareOnTelegram: 'Telegram에서 공유',
+    shareOnReddit: 'Reddit에서 공유',
+    shareOnLinkedIn: 'LinkedIn에서 공유',
+    shareViaEmail: '이메일로 공유',
+    copyLink: '링크 복사',
+    emailSubject: '이 AI 곡을 들어보세요',
+    emailBody: '안녕하세요!\n\n제가 만든 이 AI 생성 곡을 들어보세요. 마음에 드실 거예요:\n\n"{title}" - {creator}\n{style}\n\n여기서 들으세요: {url}\n\nACE-Step UI로 제작 - 무료 오픈 소스 로컬 AI 음악 생성!',
+    
+    // Reference Modal
+    referenceModalTitle: '참조 음악',
+    coverModalTitle: '커버 음악',
+    referenceModalDescription: '참조 트랙에서 영감을 받은 곡 만들기',
+    coverModalDescription: '기존 트랙을 새로운 버전으로 변환',
+    uploadAudio: '오디오 업로드',
+    uploadingAudio: '업로드 중...',
+    audioFormats: 'MP3, WAV, FLAC',
+    mine: '내 트랙',
+    loadingTracks: '로딩 중...',
+    noTracksYet: '트랙이 없습니다',
+    uploadAudioFilesAsReferences: '참조로 사용할 오디오 파일 업로드',
+    
+    // Training Module
+    loraTraining: 'LoRA 훈련',
+    trainingDescription: '오디오 파일에서 데이터셋을 구축하고 커스텀 LoRA 어댑터를 훈련',
+    datasetBuilder: '데이터셋 빌더',
+    trainLora: 'LoRA 훈련',
+    quickStart: '빠른 시작',
+    chooseOneOption: '선택: 기존 데이터셋 로드 또는 새 디렉토리 스캔',
+    loadExistingDataset: '기존 데이터셋 로드',
+    loadDataset: '로드',
+    scanNewDirectory: '새 디렉토리 스캔',
+    scanDataset: '스캔',
+    datasetSettings: '데이터셋 설정',
+    datasetName: '데이터셋 이름',
+    customActivationTag: '커스텀 활성화 태그',
+    allInstrumental: '모두 인스트루멘탈',
+    tagPosition: '태그 위치',
+    tagPrepend: '앞에 추가 (태그, 캡션)',
+    tagAppend: '뒤에 추가 (캡션, 태그)',
+    tagReplace: '캡션 대체',
+    genreRatio: '장르 비율',
+    genreRatioHint: '0% = 모두 캡션, 100% = 모두 장르',
+    autoLabelWithAI: 'AI로 자동 라벨링',
+    autoLabelDescription: '오디오 파일의 메타데이터 생성: 캡션, BPM, 키, 박자',
+    skipMetas: 'BPM/키/박자 건너뛰기',
+    onlyUnlabeled: '라벨 없는 것만',
+    autoLabelAll: '모두 자동 라벨링',
+    filename: '파일명',
+    labeled: '라벨됨',
+    saveDataset: '데이터셋 저장',
+    preprocessToTensors: '텐서로 전처리',
+    preprocessDescription: '빠른 훈련을 위해 데이터셋을 사전 계산된 텐서로 변환 (모델 로드 필요)',
+    preprocess: '전처리',
+    preprocessedDataset: '전처리된 데이터셋',
+    loraSettings: 'LoRA 설정',
+    loraRank: 'LoRA 랭크',
+    loraAlpha: 'LoRA Alpha',
+    dropout: '드롭아웃',
+    trainingParameters: '훈련 파라미터',
+    learningRate: '학습률',
+    maxEpochs: '최대 에포크',
+    gradientAccumulation: '그래디언트 누적',
+    saveEvery: '저장 간격',
+    epochs: '에포크',
+    outputDirectory: '출력 디렉토리',
+    useFP8: 'FP8 양자화 사용',
+    fp8Description: 'VRAM 사용량 감소',
+    startTraining: '훈련 시작',
+    stopTraining: '훈련 중지',
+    trainingProgress: '훈련 진행',
+    trainingLog: '훈련 로그',
+    
+    // Training Status Messages
+    scanning: '스캔 중...',
+    autoLabeling: '자동 라벨링 중...',
+    savingDataset: '저장 중...',
+    preprocessing: '전처리 중...',
+    loadingDataset: '로드 중...',
+    startingTraining: '시작 중...',
+    error: '오류',
+    datasetInfo: '데이터셋: {name}, 샘플: {samples}, 라벨됨: {labeled}',
+    trainingStep: '스텝 {step} - 손실: {loss}',
+    editSample: '샘플 편집',
+    caption: '캡션',
+    genre: '장르',
+    promptOverride: '프롬프트 재정의',
+    musicDescription: '음악 설명...',
+    overrideGlobalRatio: '이 샘플의 글로벌 비율 재정의',
+    editableUsedForTraining: '편집 가능, 훈련에 사용',
+    useGlobalRatio: '글로벌 비율 사용',
+    thisSample: '이 샘플',
+  }
+};
+
+export type TranslationKey = keyof typeof translations.en;