#backToTop{position:fixed;bottom:25px;right:25px;z-index:999;width:42px;height:42px;border-radius:50%;background-color:#d9202b;color:#fff;border:none;outline:none;display:flex;align-items:center;justify-content:center;cursor:pointer;opacity:0;visibility:hidden;transition:opacity 0.3s ease,transform 0.3s ease}#backToTop.show{opacity:1;visibility:visible;transform:translateY(0)}#backToTop{transform:translateY(10px)}#backToTop:hover{background-color:#ba0c16}@media (max-width:768px){#backToTop{width:48px;height:48px}}