Hide navigation menu from single page

I’m trying to hide my navigation menu from a single page (for the purpose of a landing page). I’ve tried different CSS combinations, but nothing has done the trick. I have also tried using conditional tags to hide each individual menu item, but have only been able to hide the menu from my entire site.

How can I hide my menu from this page only? https://benevolentbookkeeping.com/welcome/

Thank you!