Why doesn't .htaccess redirect to robots.txt?

Question

htaccess

It is necessary to make different robots.txt for subdomains. Tried already in different ways everything exactly redirects to robots.txt at the root.
Tried like this, doesn't work:

RewriteCond %{HTTP_HOST} ^(.+).site.ru$
RewriteRule ^robots.txt seo/robots_%1.txt

Answer 1

so why did you decide that .htaccess applies to it at all?
The simplest explanation is that you have nginx + apache and nginx processes the statics.
In this case, you will need to write a redirect to nginx