Hi there!

Thanks for contacting us.

Did you mean only the container width and spaces around the page title section? Then the following code will do the job for you:

#sp-page-title {
    max-width: 1310px;
    margin: 44px auto 0px auto;
    padding: 0px 15px;
}

Here is all about custom code placement in Helix Ultimate: https://www.joomshaper.com/documentation/helix-framework/custom-code-css-js-meta

Best Regards