Issues with Page Margins

I hope someone out there can help me, the margins on my page are wrong and I cannot find any help anywhere!

I’m using the Hestia theme, and the “default” page template, as I would like to keep the theme’s sections.
I also have a “boxed” content width.

The pages are built with elementor.

In the Homepage, the section stretches to the edge of the page, and I want to add margins.(https://turnwiddershins.co.uk/)
In other pages, the section is way too narrow, and I want to stretch the margins a bit. (I recreated the homepage on a brand new page to show you here: https://turnwiddershins.co.uk/group)
These 2 pages have the exact same template, so I have no idea what I’m doing wrong!

If I add the margins with custom css, I would be adding them to the whole site, which would make the margins on the homepage look ok, but they would be too big on the other pages.

I don’t think anyone else has come across this problem, and if I can’t fix it, I’m going to have to change theme altogether.

The page I need help with: [log in to see the link]