body,html{margin:0;padding:0;box-sizing:border-box;font-family:Segoe UI,Tahoma,Geneva,Verdana,sans-serif;background-image:url(/images/background.png);color:#333}.goTopBtn{position:fixed;bottom:25px;right:25px;z-index:3000;background:#ff914d;border:none;border-radius:50%;width:48px;height:48px;cursor:pointer;display:flex;align-items:center;justify-content:center;transition:transform .3s ease,background .3s ease,opacity .3s ease;opacity:.85;box-shadow:0 4px 12px rgba(0,0,0,.3)}.goTopBtn:hover{transform:scale(1.1);background:rgba(0,0,0,.8);opacity:1}.chevronIcon{width:24px;height:24px;color:white}@media (max-width:480px){.goTopBtn{bottom:18px;right:18px;width:42px;height:42px}.chevronIcon{width:20px;height:20px}}