SSL (HTTPS) no CSS and Scripts

Hello!
I have itstalled WP couple days ago and still can’t solve my problem. I have ssl for my site and installed it on the server (Apache, virtual hosting). We get secure connection for https://rdnstudio.ru/ but there are some problems for all another pages (mixed content warnings). For example https://rdnstudio.ru/test. This is my problem i still try to solve.

Using https://rdnstudio.ru/index.php/pagename – is OK. All scripts and CSS works perfect. For it i should change the mask of the permanent links to https://rdnstudio.ru/index.php/%postname%/

Any defaults links are OK too!

I don’t use any plugins for SSL and so on because of LOOP (to many redirections problem).

mod_rewrite is OK.
https://rdnstudio.ru/phpinfo.php

My .htaccess:

# BEGIN WordPress
<IfModule mod_rewrite.c>
RewriteEngine On
RewriteBase /
RewriteRule ^index\.php$ – [L]
RewriteCond %{REQUEST_FILENAME} !-f
RewriteCond %{REQUEST_FILENAME} !-d
RewriteRule . /index.php [L]
</IfModule>
# END WordPress

Help please 🙂

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