#spine-bg {
    position: fixed;
    z-index: -998;
    left: -50vw;
    bottom: 5vh;
    width: 200vw;
    height: 100vh;
}

#spine-bg .spine-player {
    height: 100%;
    bottom: 0;
}

#bg-1 {
    position: fixed;
    left: 0;
    right: 0;
    top: 0;
    z-index: -999;
    border: none;
    height: 100%;
    width: 100%;
    background-image: url(/assets/bg/BG.webp);
    background-repeat: no-repeat;
    background-attachment: fixed;
    background-position: center;
    background-size: cover;
}

#mg-0 {
    position: fixed;
    left: 0;
    bottom: 0;
    z-index: -996;
}

#mg-1 {
    position: fixed;
    left: 0;
    top: 0;
    bottom: 0;
    z-index: -997;
}

#fg-1 {
    position: fixed;
    right: 0;
    bottom: 0;
    z-index: -995;
}

#fg-2 {
    position: fixed;
    left: 0;
    bottom: 0;
    z-index: -995;
}

@media (max-width: 720px) {
    #mg-0 {
        transform: scale(0.75);
        transform-origin: left bottom;
    }
    #fg-1 {
        transform: scale(0.75);
        transform-origin: right bottom;
    }
    #fg-2 {
        transform: scale(0.75);
        transform-origin: left bottom;
    }
}

@media (max-width: 480px) {
    #mg-0 {
        transform: scale(0.5);
        transform-origin: left bottom;
    }
    #fg-1 {
        transform: scale(0.5);
        transform-origin: right bottom;
    }
    #fg-2 {
        transform: scale(0.5);
        transform-origin: left bottom;
    }
}