#menu-container ul li.active .menu-btn:before{height:3px;opacity:1}#menu-container ul li .menu-btn{position:relative}#menu-container ul li .menu-btn:before{content:"";position:absolute;bottom:0;left:0;width:100%;height:0px;background-color:rgba(var(--sm-color-primary));opacity:0;transition:height .3s ease-in-out,opacity .3s ease-in-out}#menu-container li .menu-detail{opacity:0}#menu-container li.active .menu-detail{opacity:1}.nav-support .custom-border:before{content:"";position:absolute;top:calc(50% - 40px);right:0;width:1px;height:80px;background:rgb(var(--gray-3))}.nav-support .custom-border:last-child:before{display:none}