.header{background:#fff;left:0;position:fixed;top:0;transition:all .3s ease;width:100%;z-index:999}.header .header-container{align-items:center;display:flex;justify-content:space-between;transition:all .3s ease}.header .head-logo img{max-height:60px;transition:all .3s ease}.header.is-scrolled{box-shadow:0 4px 10px rgba(0,0,0,.05);padding:10px 0}.header.is-scrolled .head-logo img{max-height:40px}.main-logo{display:block}.header.is-scrolled .main-logo,.scroll-logo{display:none}.header.is-scrolled .scroll-logo{display:block}.header-container{display:flex;justify-content:space-around;padding:15px 0}.header-container .head-logo img{max-width:300px}.header-container .head-right{align-items:center;column-gap:30px;display:flex}.header-container .head-right ul{list-style:none}.header-container .head-right ul li a{color:#282018}.header-container .head-right a{font-size:16px;text-decoration:none}@media (max-width:767px){.header .header-container{padding:15px 20px}.header-container .head-logo img{max-width:220px}.header.is-scrolled .head-logo img{max-height:30px}}@media (max-width:520px){.header-container .head-logo img{max-width:180px}}