.bas-container {
    position: relative;
    width: 100%;
    max-width: 800px;
    overflow: hidden;
}

.bas-container img {
    display: block;
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.bas-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 50%;
    height: 100%;
    overflow: hidden;
}

.bas-slider {
    position: absolute;
    top: 0;
    left: 50%;
    width: 4px;
    height: 100%;
    background: #fff;
    cursor: ew-resize;
    z-index: 10;
}

.bas-slider::after {
    content: '';
    position: absolute;
    top: 50%;
    left: -10px;
    width: 24px;
    height: 24px;
    background: #FF4D2D;
    border-radius: 50%;
    transform: translateY(-50%);
}