@media (max-width:768px){.beianelec-menu-toggle.open span:nth-child(1){transform:translateY(8px) rotate(45deg)}.beianelec-menu-toggle.open span:nth-child(2){opacity:0}.beianelec-menu-toggle.open span:nth-child(3){transform:translateY(-8px) rotate(-45deg)}.beianelec-main-nav.active{display:flex}.beianelec-main-nav li.submenu-open>.sub-menu{display:block}.beianelec-main-nav li.submenu-open>a::after{transform:rotate(180deg);color:#f37b21}}