Hello,
I am checking your site, I see this demo has been imported, You have your content on the site, and as a result demo does not look exactly as it has been initially designed.
As for the menu, your menu is now multi-level, you need to create a mega-menu: https://xtemos.com/docs-topic/create-mega-menu/
Your header now has the background you need to remove it to get the same as on the demo: https://xtemos.com/docs-topic/header-rows-and-columns-configuration/
If you have any questions please feel free to contact us.
Best Regards