Layout Problems

I set the the section to 100vh on desktop ,looks okay on tablet , but coming down to mobile landscape and potrait ,it clashes with the section below it.
How do i Solve this.
I also think theres a problem with the mobile landscape mode, when ever i test a site in my phone on mobile landscape it looks disgusting.However this displays properly in the canvass.


Here is my site Read-Only: [https://preview.webflow.com/preview/a-real-project?preview=ea3c6f458906ab745692ea59312db05f[1]