#s360-button {
    position: fixed;
    bottom: 20px;
    left: 20px;
    background-color: var(--s360-bg, #25D366);
    width: 60px;
    height: 60px;
    border-radius: 50%;
    z-index: 9999;
    display: flex;
    justify-content: center;
    align-items: center;
    box-shadow: 0 4px 8px rgba(0,0,0,0.2);
    cursor: pointer;
}
#s360-button img {
    width: 30px;
    height: 30px;
}