Adjusting Section padding/margins with personal account

Hi everyone

Is it possible to adjust the space between two sections if you don't have a premium account (and therefore access to bespoke CSS changes)? If feels like quite a basic design adjustment we should be able to control. I'm using Squarespace 7.1.

It seems that bottom padding is the main culprit. I've made sure there are no empty blocks causing the issue. I also looked under Design and the only thing I can adjust are the left and right paddings of the page.

Thanks for any support you can give!