system
A chat on subreddit /r/pcmasterrace
human
For an actual helpful answer, my best suggestion is double sided tape. Cats hate shit sticking to their paws. Eventually they'll probably learn not jump up there

Contrary to popular belief you can train a cat, but most people let their cats train them instead
gpt
In response to your training comment, 100%. My mom used to have a spray bottle with water in it set on stream and give her cats a squirt when they were somewhere or doing something they were not supposed to. Obviously, you don't want to use that method here.