.k1-back-to-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 52px;
    height: 52px;
    border-radius: 4px;
    background: linear-gradient(135deg, #00d4ff 0%, #0051ff 100%);
    color: #fff;
    border: none;
    cursor: pointer;
    font-size: 26px;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    visibility: hidden;
    transform: translateY(20px);
    transition: all 0.3s ease;
    z-index: 1000;
    box-shadow: 0 4px 15px rgba(0, 212, 255, 0.4);
}

.k1-back-to-top.visible {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.k1-back-to-top:hover {
    transform: translateY(-3px);
    box-shadow: 0 6px 20px rgba(0, 212, 255, 0.6);
}

@media (max-width: 768px) {
    .k1-back-to-top {
        width: 46px;
        height: 46px;
        bottom: 20px;
        right: 20px;
        font-size: 22px;
    }
}