diff --git a/docs/README.ja-JP.md b/docs/README.ja-JP.md
index 37e41bdd..9ca0a02e 100644
--- a/docs/README.ja-JP.md
+++ b/docs/README.ja-JP.md
@@ -6,7 +6,7 @@ AI Agent でチャット履歴をローカル分析し、あなたのソーシ
 
 [English](../README.md) | [简体中文](./README.zh-CN.md) | [繁體中文](./README.zh-TW.md) | 日本語
 
-[公式サイト](https://chatlab.fun/ja/) · [ダウンロードガイド](https://chatlab.fun/ja/?type=download) · [ドキュメント](https://chatlab.fun/ja/usage/) · [Roadmap](https://chatlabfun.featurebase.app/roadmap) · [Issue](https://github.com/hellodigua/ChatLab/issues)
+[公式サイト](https://chatlab.fun/) · [ダウンロードガイド](https://chatlab.fun/?type=download) · [ドキュメント](https://chatlab.fun/usage/) · [Roadmap](https://chatlabfun.featurebase.app/roadmap) · [Issue](https://github.com/hellodigua/ChatLab/issues)
 
 </div>
 
@@ -24,14 +24,14 @@ ChatLab は、チャット履歴を深く理解するためのローカル完結
 
 ## ガイド
 
-- [ChatLab ダウンロードガイド](https://chatlab.fun/ja/?type=download)
-- [チャット履歴の書き出しガイド](https://chatlab.fun/ja/usage/how-to-export.html)
-- [標準フォーマット仕様](https://chatlab.fun/ja/standard/chatlab-format.html)
-- [トラブルシューティング](https://chatlab.fun/ja/usage/troubleshooting.html)
+- [ChatLab ダウンロードガイド](https://chatlab.fun/?type=download)
+- [チャット履歴の書き出しガイド](https://chatlab.fun/usage/how-to-export.html)
+- [標準フォーマット仕様](https://chatlab.fun/standard/chatlab-format.html)
+- [トラブルシューティング](https://chatlab.fun/usage/troubleshooting.html)
 
 ## プレビュー
 
-その他の画面は公式サイト [chatlab.fun](https://chatlab.fun/ja/) を参照してください。
+その他の画面は公式サイト [chatlab.fun](https://chatlab.fun/) を参照してください。
 
 ![Preview Interface](../public/images/intro_en.png)
 
diff --git a/docs/README.zh-TW.md b/docs/README.zh-TW.md
index f5b22088..0c5293cc 100644
--- a/docs/README.zh-TW.md
+++ b/docs/README.zh-TW.md
@@ -6,7 +6,7 @@
 
 [English](../README.md) | [简体中文](./README.zh-CN.md) | 繁體中文 | [日本語](./README.ja-JP.md)
 
-[官網](https://chatlab.fun/tw/) · [下載指南](https://chatlab.fun/tw/?type=download) · [使用文件](https://chatlab.fun/tw/usage/) · [Roadmap](https://chatlabfun.featurebase.app/roadmap) · [問題回報](https://github.com/hellodigua/ChatLab/issues)
+[官網](https://chatlab.fun/cn/) · [下載指南](https://chatlab.fun/cn/?type=download) · [使用文件](https://chatlab.fun/cn/usage/) · [Roadmap](https://chatlabfun.featurebase.app/roadmap) · [問題回報](https://github.com/hellodigua/ChatLab/issues)
 
 </div>
 
@@ -24,14 +24,14 @@ ChatLab 是一款專注於社交記錄分析的本機應用。結合 AI Agent 
 
 ## 使用指南
 
-- [下載 ChatLab 指南](https://chatlab.fun/tw/?type=download)
-- [匯出聊天記錄指南](https://chatlab.fun/tw/usage/how-to-export.html)
-- [標準化格式規範](https://chatlab.fun/tw/standard/chatlab-format.html)
-- [疑難排解指南](https://chatlab.fun/tw/usage/troubleshooting.html)
+- [下載 ChatLab 指南](https://chatlab.fun/cn/?type=download)
+- [匯出聊天記錄指南](https://chatlab.fun/cn/usage/how-to-export.html)
+- [標準化格式規範](https://chatlab.fun/cn/standard/chatlab-format.html)
+- [疑難排解指南](https://chatlab.fun/cn/usage/troubleshooting.html)
 
 ## 預覽畫面
 
-更多畫面請前往官網 [chatlab.fun](https://chatlab.fun/tw/)
+更多畫面請前往官網 [chatlab.fun](https://chatlab.fun/cn/)
 
 ![預覽畫面](../public/images/intro_zh.png)
 
diff --git a/electron/main/ipc/ai.ts b/electron/main/ipc/ai.ts
index bec51ee3..7a01ffc8 100644
--- a/electron/main/ipc/ai.ts
+++ b/electron/main/ipc/ai.ts
@@ -497,13 +497,18 @@ export function registerAIHandlers({ win }: IpcContext): void {
   ipcMain.handle(
     'llm:validateApiKey',
     async (_, provider: llm.LLMProvider, apiKey: string, baseUrl?: string, model?: string) => {
-      console.log('[LLM:validateApiKey] Validating:', { provider, baseUrl, model, apiKeyLength: apiKey?.length })
+      aiLogger.info('IPC', 'llm:validateApiKey validating', {
+        provider,
+        baseUrl,
+        model,
+        apiKeyLength: apiKey?.length,
+      })
       try {
         const result = await llm.validateApiKey(provider, apiKey, baseUrl, model)
-        console.log('[LLM:validateApiKey] Result:', result)
+        aiLogger.info('IPC', 'llm:validateApiKey result', result)
         return result
       } catch (error) {
-        console.error('[LLM:validateApiKey] Validation failed:', error)
+        aiLogger.error('IPC', 'llm:validateApiKey failed', { error: String(error), provider, baseUrl, model })
         const errorMessage = error instanceof Error ? error.message : String(error)
         return { success: false, error: errorMessage }
       }
diff --git a/src/pages/home/components/ChangelogModal.vue b/src/pages/home/components/ChangelogModal.vue
index 127ae363..f2bd1fbb 100644
--- a/src/pages/home/components/ChangelogModal.vue
+++ b/src/pages/home/components/ChangelogModal.vue
@@ -1,6 +1,7 @@
 <script setup lang="ts">
 import { ref, watch, onMounted } from 'vue'
 import { useI18n } from 'vue-i18n'
+import { getChatlabSiteLocalePath } from '@/utils/chatlabSiteLocale'
 import { storeToRefs } from 'pinia'
 import { useSettingsStore } from '@/stores/settings'
 import { sanitizeSummary } from '@/utils/sanitizeSummary'
@@ -84,14 +85,9 @@ interface ChangelogItem {
 const changelogs = ref<ChangelogItem[]>([])
 
 function getChangelogUrl(lang: string) {
-  const langPathMap: Record<string, string> = {
-    'zh-CN': 'cn',
-    'zh-TW': 'tw',
-    'en-US': 'en',
-    'ja-JP': 'ja',
-  }
-  const langPath = langPathMap[lang] ?? 'en'
-  return `https://chatlab.fun/${langPath}/changelogs.json`
+  const localePath = getChatlabSiteLocalePath(lang)
+  const langPath = localePath ? `/${localePath}` : ''
+  return `https://chatlab.fun${langPath}/changelogs.json`
 }
 
 // 从服务端获取 changelog 数据
diff --git a/src/pages/home/components/HomeFooter.vue b/src/pages/home/components/HomeFooter.vue
index 38f88e10..56fed8dc 100644
--- a/src/pages/home/components/HomeFooter.vue
+++ b/src/pages/home/components/HomeFooter.vue
@@ -1,6 +1,7 @@
 <script setup lang="ts">
 import { ref, computed, onMounted, watch } from 'vue'
 import { useI18n } from 'vue-i18n'
+import { getChatlabSiteLocalePath } from '@/utils/chatlabSiteLocale'
 
 const emit = defineEmits<{
   openChangelog: []
@@ -11,16 +12,10 @@ const { t, locale } = useI18n()
 
 // 配置 URL 根据语言动态获取
 const CONFIG_BASE_URL = 'https://chatlab.fun'
-const langPathMap: Record<string, string> = {
-  'zh-CN': 'cn',
-  'zh-TW': 'tw',
-  'en-US': 'en',
-  'ja-JP': 'ja',
-}
-
 const configUrl = computed(() => {
-  const langPath = langPathMap[locale.value] ?? 'en'
-  return `${CONFIG_BASE_URL}/${langPath}/config.json`
+  const localePath = getChatlabSiteLocalePath(locale.value)
+  const langPath = localePath ? `/${localePath}` : ''
+  return `${CONFIG_BASE_URL}${langPath}/config.json`
 })
 
 // 存储 key 也根据语言区分
@@ -42,7 +37,7 @@ function getDefaultLinks(): FooterLink[] {
       id: 'website',
       icon: 'i-heroicons-globe-alt',
       title: t('home.footer.website'),
-      url: `https://chatlab.fun/${langPathMap[locale.value] ?? 'en'}/`,
+      url: `https://chatlab.fun${getChatlabSiteLocalePath(locale.value) ? `/${getChatlabSiteLocalePath(locale.value)}` : ''}/`,
     },
     {
       id: 'github',
diff --git a/src/pages/home/components/ImportArea.vue b/src/pages/home/components/ImportArea.vue
index fc88c09f..2ee14530 100644
--- a/src/pages/home/components/ImportArea.vue
+++ b/src/pages/home/components/ImportArea.vue
@@ -6,6 +6,7 @@ import { storeToRefs } from 'pinia'
 import { ref, computed } from 'vue'
 import { useRouter } from 'vue-router'
 import { useI18n } from 'vue-i18n'
+import { getChatlabSiteLocalePath } from '@/utils/chatlabSiteLocale'
 import { useSessionStore, type BatchFileInfo, type MergeFileInfo } from '@/stores/session'
 
 const { t } = useI18n()
@@ -333,8 +334,8 @@ async function handleGoToSession(sessionId: string) {
 // 教程链接：根据语言动态生成
 const tutorialUrl = computed(() => {
   const { locale } = useI18n()
-  const pathMap: Record<string, string> = { 'zh-CN': '/cn', 'zh-TW': '/tw', 'ja-JP': '/ja' }
-  const langPath = pathMap[locale.value] ?? ''
+  const localePath = getChatlabSiteLocalePath(locale.value)
+  const langPath = localePath ? `/${localePath}` : ''
   return `https://chatlab.fun${langPath}/usage/how-to-export.html?utm_source=app`
 })