@charset "UTF-8";.scroll-arrow{position:fixed;right:20px;width:40px;height:40px;background-color:rgba(0,0,0,0.5);color:white;text-align:center;line-height:40px;font-size:20px;cursor:pointer;z-index:9999;border-radius:50%;transition:transform 0.9s ease,opacity 0.9s ease,background-color 0.3s ease}.scroll-arrow:hover{background-color:rgba(0,0,0,0.8)}#scroll-up{top:50%;transform:translateY(-25px)}#scroll-down{top:50%;transform:translateY(25px)}