How can I bold a specific menu item in my main theme?

Store Design
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11

Hello! I’ve finally launched this new theme. I’ve figured out bolding the “Sale” line item on Mobile with the following css:
#mobile-menu > div > div:nth-child(1) > div:nth-child(1) > ul > li:nth-child(5) {
font-weight: 700;
color: #ed6e0f;
}

However I cannot get something similar to work on desktop. Any ideas? Here’s the live store: https://backcountryfoodie.myshopify.com/