.scroll-icon {
    cursor: pointer;
    width: 40px;
    position: absolute;
    bottom: 20px;
    left: 50%;
    transform: translateX(-50%);
    animation: pulse 1s infinite;
}
@keyframes pulse {
    0% { transform: translateX(-50%) scale(1); }
    50% { transform: translateX(-50%) scale(1.2); }
    100% { transform: translateX(-50%) scale(1); }
}