.main-banner {
    width: 100%;
    margin: 32px 0 24px 0;
    text-align: center;
}

.banner-img {
    width: 100%;
    max-width: 1100px;
    max-height: 180px;
    height: auto;
    border-radius: 22px;
    box-shadow: 0 8px 32px rgba(0,0,0,0.18);
    object-fit: cover;
    transition: transform 0.25s, box-shadow 0.25s;
    margin: 0 auto;
    display: block;
}

.banner-img:hover {
    transform: scale(1.015);
    box-shadow: 0 12px 40px rgba(0,255,136,0.18);
}

@media (max-width: 900px) {
    .banner-img {
        max-width: 100vw;
        max-height: 115px;
        border-radius: 14px;
    }
}
@media (max-width: 600px) {
    .banner-img {
        max-width: 99vw;
        max-height: 70px;
        border-radius: 10px;
    }
}

.switch {
    position: relative;
    display: inline-block;
    width: 48px;
    height: 26px;
    vertical-align: middle;
}
.switch input {
    opacity: 0;
    width: 0;
    height: 0;
}
.slider {
    position: absolute;
    cursor: pointer;
    top: 0; left: 0; right: 0; bottom: 0;
    background: #ccc;
    transition: .4s;
    border-radius: 26px;
}
.slider:before {
    position: absolute;
    content: "";
    height: 20px;
    width: 20px;
    left: 3px;
    bottom: 3px;
    background: #fff;
    transition: .4s;
    border-radius: 50%;
    box-shadow: 0 2px 6px rgba(0,0,0,0.15);
}
.switch input:checked + .slider {
    background: linear-gradient(45deg, #00ff88, #00cc6a);
}
.switch input:checked + .slider:before {
    transform: translateX(22px);
}