.

components/ui/language-switcher.tsx

@@ -36,6 +36,10 @@ export function LanguageSwitcher() {
     // 仅在用户选择语言后保存 cookie
     console.log('[LanguageSwitcher] Write Cookie newLocale value:', newLocale)
     document.cookie = `preferred-language=${newLocale}; path=/; max-age=31536000`
+
+    // 同时更新 localStorage
+    localStorage.setItem('preferred-language', newLocale)
+    console.log('[LanguageSwitcher] Write to localStorage newLocale value:', newLocale)
     
     // 验证 cookie 是否成功写入
     const cookieValue = document.cookie