How to change footer color way on one page?

Site URL: https://lychee-magnolia-et83.squarespace.com/

Hi there, I would like to change the footer only on the "Contact" page to another color way (Lighttest 1). I have attached a screenshot. Password is creative1234. Thank you.

And do you know how to change the logo on one page only?

Add to Page Header

<style>
  footer.sections .section-background {
    background-color: red !important;
}
  footer.sections .html-block * {
    color: green;
}
</style>
<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.4.1/jquery.min.js"></script>
<script>
$(document).ready(function() {
    $(".header-title-logo img").attr("src", "https://cdn.pixabay.com/photo/2021/08/17/14/48/sea-6553205__340.jpg");
});
</script>