How to add custom font on one page

Site URL: https://www.blueforeststudios.com/

Hi.  I'm trying to use a google font for h1 on just one page of the site.  I don't want to globally change the h1 styles.  Any tips for how to use a google font for headlines on one page only?  Specifically I'm trying to embed google font Londrina solid for headlines.

It is Squarespace Default Font?

Which headline? Can you take screenshot?

You can use CSS to change font on One page.