header{border-bottom:1px solid rgba(0,0,0,.06);z-index:1000}header .logo .logo-white{opacity:0}header .logo .logo-black{opacity:1}header .navs .nav-box .nav{color:#000}header .navs .nav-box .nav-btn{border:1px solid #000}@media (max-width:768px){header .menu-box .btn{border:1px solid #000;color:#000}header .menu-box .menu i{background-color:#000}header:hover .logo .logo-white{opacity:0}header:hover .logo .logo-black{opacity:1}.header-click-active .menu-box .btn{display:none}}