.site-title .logo {
    color: transparent;
    background: url(../../../images/layout01-5/en/logo.png) 50% 50% no-repeat;
    background-size: contain;
    width: 455px;
    height: 91px;
    transition: all .3s ease;
}
.header-fixed .site-title .logo {
    height: 50px;
    width: 251px;
}
@media screen and (max-width: 1280px) {
    .site-title .logo {
        width: 420px;
    }
}
@media screen and (max-width: 1000px) {
    .site-title .logo, .header-fixed .site-title .logo {
        width: 339px;
        height: 70px;
    }
}