.scene {
    background-size: cover;
    background-repeat: no-repeat;
    overflow: hidden;
}

.scene-bg1 {
    background-image: linear-gradient(135deg, #003F6F 0%, #0284C2 100%);
}

.scene-bg2 {
    background-image: url("../image/bg.jpg");
}

.hack-bg {
    position: absolute;
    top: 100vh;
    left: 0;
    z-index: 0;
    width: 100vw;
    height: 100vh;
    background-size: cover;
    background-repeat: no-repeat;
    opacity: 0.94;
}

.hack-bg .img-p3-1 {
    width: 321px;
    height: auto;
    display: block;
    margin-left: auto;
    margin-right: auto;
    margin-top: 90px;
}

.hack-bg .img-p3-2 {
    width: 338px;
    height: auto;
    display: block;
    margin-top: 32px;
    margin-left: 40px;
}

.img-next-tip {
    width: 40px;
    height: auto;
    position: fixed;
    bottom: 30px;
    left: calc((100vw - 40px) / 2);
    display: none;
}