I want to make the background color slant and make it responsive.

I'd like to ask you about the responsive setting when the background color is angled and cut diagonally.
I searched for related information, but when I narrowed the width with responsiveness, the lower right and upper left parts were partially parallel, and it didn't work.
With @media, even if I set the details fine, it didn't go smoothly.

Realize diagonally cut background that is neatly responsively displayed with CSS alone
(According to this, with @media, it is possible to respond responsively without fine setting)

I'd like to make the angle "72 degrees" more than the sample in the above article, but I don't understand the functions.

I understand that changing the angle can be done with transform: rotate (XXdeg) ;, but if you don't adjust other values, the angle may still be missing.

↑ It is an image of the height and width I want to actually do.

What should I do to calculate the calc value to support responsiveness while keeping the lower right angle at 72 degrees?