Link page to different links on desktop and mobile

Site URL: https://cube-parakeet-z3k6.squarespace.com/

Currently trying to link one link under navigation to a separate hidden page on mobile.

I've been trying for ages to get a text layout right but because Squarespace stacks boxes on top of one another this will always be off. I've been able to play around with the layout so that there is a configuration that is suitable for mobile, but then this looks bad on desktop. Is there a way for me to link this link to go one place on mobile? I am to make a second hidden page so that they are both desktop and mobile can have the optimal layout. 

Your site is private.

You can use CSS to hide one link on mobile, one on desktop.

If you describe in detail your problem, I can take a look

Thanks for your reply! That's a great idea and simply solution—I've tried just about eerything, even making large sections visible/invisible depending on the device used.  Just made it public.