Font color of dropdown menu in navigation bar

Site URL: https://lobster-piccolo-c8t5.squarespace.com/business-prsentationen

Hello Squarespace community,

I'm having trouble changing the font color of the dropdown menu of a folder in the navigation bar. I would like to achieve 3 things:

1. Have this pink color as box color of the dropdown menu (achieved that)

2. Have the title of the folder (Für Unternehmen) in the same pink color underlined when selected

3. Have the links in the list of the dropdown menu have white font color (even when not visited or hovered)

I am struggling with points 2 and 3. Could someone help me please?  

(the password for the site is: helloworld)

Thanks in advance 🙂