Multiple Accordions

Hey,
I’m trying to use two accordions, on next another, similliar to this: https://advjunior.com/#!/consultoria

Im using two accordions because I failed to do it in any other way, but when I open one accordion item, it doesnt close the other one (if open). Is there a way to make both accordions linked to each other, so when I open an item in one it closes in the other?

The page I need help with: [log in to see the link]