#musicControl {
    position: fixed;
    top: 0; 
    left: 0;
    width: 100%; 
    height: 100%;
    background: transparent;
    cursor: pointer;
    z-index: 9999;
}

#audio-control {
    position: fixed;
    bottom: 20px; 
    left: 20px;
    display: none;
    cursor: pointer;
    z-index: 10000;
    width: 30px;
    height: 30px;
    display: flex;
    align-items: flex-end;
    justify-content: space-between;
    --bg-music-icon-color: #ffd279;
    --bg-music-icon-color-2: #2d2200;
    --bg-music-icon-angle: 0deg;
}

#audio-control .bg-music-bar {
    width: 6px;
    height: 100%;
    background: linear-gradient(var(--bg-music-icon-angle), var(--bg-music-icon-color), var(--bg-music-icon-color-2));
    animation: bg-music-pulse 1s infinite ease-in-out;
}

#audio-control .bg-music-bar:nth-child(2) { animation-delay: 0.2s; }
#audio-control .bg-music-bar:nth-child(3) { animation-delay: 0.4s; }

@keyframes bg-music-pulse {
    0%, 100% { transform: scaleY(0.4); }
    50%      { transform: scaleY(1.0); }
}

#audio-control.paused .bg-music-bar {
    animation-play-state: paused;
    background: #888;
}