Changing Color Of Current Menu Item?

I want the menu item corresponding to the current page to be different color (orange). I used the following code:

#top .av-main-nav > li.current-menu-item a {
color: #F05328;
}

I have 2 problems with this code:

1) It turns the sub-menu of the current page orange too (for example, click on About Us page and view the sub-menu). I only want “About Us” menu link to be orange, not the whole sub-menu below it.

2) If I select the sub-page, I want the parent menu item to be orange… and it’s not. For example, if I go to Staff page that’s under “About Us”, I want “About Us” link to be orange. How do I do that?

Thanks in advance for your help!