网站多语言，但我需要更改目录的位置

I have a question about php and .htaccess. I try to make my first php website with multi language. The language changer is work, but i get one problem, when i try change the page (homapage to about us for example...).

In the href i use this:

<a class="nav-link" href="index.php?lang='.$_GET['lang'].'/about_us">'.$lang['about_us'].'</a>

In .htaccess:

Options +FollowSymLinks
RewriteEngine On
RewriteBase /pages

RewriteRule ^(hu|en)/(.*)$  $2?lang=$1 [L,QSA]
RewriteRule ^(.*)$  $1?lang=hu [L,QSA]

The script write this error line:

include(lang/en/about_us/lang.en/about_us.php): failed to open stream

The location of the language files:

The location of the pages files:

Can you help me?