.

app/[locale]/page.tsx

@@ -5,6 +5,9 @@ import { IconArrowRight } from "@tabler/icons-react"
 import { useTheme } from "next-themes"
 import Link from "next/link"
 
+import HomeRedirector from "@/components/utility/home-redirector"
+
+
 import { LanguageSwitcher } from '@/components/ui/language-switcher'
 
 export default function HomePage() {
@@ -13,6 +16,7 @@ export default function HomePage() {
   return (
     <div className="flex size-full flex-col items-center justify-center relative">
 
+      <HomeRedirector />
       <LanguageSwitcher />
 
       <div>

components/ui/language-switcher.tsx

@@ -2,7 +2,7 @@
 
 import i18nConfig from '@/i18nConfig'
 import { usePathname, useRouter } from 'next/navigation'
-import { useTransition } from 'react'
+import { useEffect, useTransition } from 'react'
 import { Globe } from 'lucide-react'
 
 export function LanguageSwitcher() {
@@ -12,8 +12,25 @@ export function LanguageSwitcher() {
 
   const currentLocale = pathname.split('/')[1] || i18nConfig.defaultLocale
 
+  useEffect(() => {
+    // 第一次访问页面时，如果 URL 有语言，就记住
+    if (typeof window !== 'undefined') {
+      const saved = localStorage.getItem('preferred-language')
+      if (!saved || saved !== currentLocale) {
+        localStorage.setItem('preferred-language', currentLocale)
+      }
+    }
+  }, [currentLocale])
+
   const handleChange = (e: React.ChangeEvent<HTMLSelectElement>) => {
     const newLocale = e.target.value
+
+    // 保存用户选择
+    if (typeof window !== 'undefined') {
+      localStorage.setItem('preferred-language', newLocale)
+    }
+
+    // 替换语言部分的路径
     const segments = pathname.split('/')
     segments[1] = newLocale
     const newPath = segments.join('/')

components/utility/home-redirector.tsx

@@ -0,0 +1,25 @@
+'use client'
+
+import { useEffect } from 'react'
+import { useRouter } from 'next/navigation'
+import i18nConfig from '@/i18nConfig'
+
+export default function HomeRedirector() {
+  const router = useRouter()
+
+  useEffect(() => {
+    const preferred = localStorage.getItem('preferred-language')
+    const currentPath = window.location.pathname
+
+    if (
+      preferred &&
+      i18nConfig.locales.includes(preferred) &&
+      !currentPath.startsWith(`/${preferred}/`)
+    ) {
+      const newPath = `/${preferred}${currentPath}`
+      router.replace(newPath)
+    }
+  }, [])
+
+  return null
+}