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components/ui/language-switcher.tsx

@@ -13,25 +13,22 @@ export function LanguageSwitcher() {
   const currentLocale = pathname.split('/')[1] || i18nConfig.defaultLocale
 
   useEffect(() => {
+    // 只在加载时检查，避免多次保存 cookie
     if (typeof window !== 'undefined') {
       const saved = localStorage.getItem('preferred-language')
       const isLocaleInPath = i18nConfig.locales.includes(currentLocale as any)
 
-      // 只有在 URL 中没有 locale 前缀时才写入 cookie 和 localStorage，避免错误覆盖
+      // 只有在 URL 中没有 locale 前缀时才进行处理
       if (!isLocaleInPath && saved !== currentLocale) {
-        localStorage.setItem('preferred-language', currentLocale)
-        document.cookie = `preferred-language=${currentLocale}; path=/; max-age=31536000`
-        console.log('[LanguageSwitcher] set preferred-language to:', currentLocale)
-        
-        // 验证 cookie 是否成功写入
-        const cookieValue = document.cookie
-        console.log('[LanguageSwitcher] Current cookies:', cookieValue)
+        // 不做 cookie 写入，除非用户选择语言
+        console.log('[LanguageSwitcher] No need to update cookie, currentLocale:', currentLocale)
       }
     }
   }, [currentLocale])
 
   const handleChange = (e: React.ChangeEvent<HTMLSelectElement>) => {
     const newLocale = e.target.value
+    // 仅在用户选择语言后保存 cookie
     document.cookie = `preferred-language=${newLocale}; path=/; max-age=31536000`
 
     // 验证 cookie 是否成功写入