html, body {
    margin: 0;
    padding: 0;
    width: 100%;
    height: 100%;
    overflow: hidden;
    background-color: black;
}


#GameDiv,
#Cocos3dGameContainer,
#GameDiv {
    width: 100%;
    height: 100dvh;
}

#introVideo {
    position: absolute;
    top: 0;
    left: 0;
    z-index: 2000;
}

#blackOverlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: #ffff;
    z-index: 1000; /* 數值足夠高以確保覆蓋其他所有元素 */
    pointer-events: none; /* 可根據需要，若要阻擋互動可設為 auto */
    background-image: url('./bg.png');
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
}