body{
    margin: 0;
    padding: 0;
    overflow-x: hidden;
    background-image: url('./bg.jpg');
}
.pc{
    width: 100%;
    height: 6486px;
    background-position: top center;
    background-repeat: no-repeat;
    background-image: url('./pc.png');
    position: relative;
}
.mobile{
    display: none;
}
.pcBtn{
    position: fixed;
    right:20px;
    top: 460px;
}
@media all and (max-width:950px) {
    .pc{
        display: none;
    }
    .mobile{
        display: block;
        position: relative;
    }
    .mobileBtn{
        width: 55px;
        position: fixed;
        right: 10px;
        top: 210px;
        z-index: 3;
        /* margin-left: 31%; */
    }
    .mobileImg{
        position: relative;
        display: block;
        width: 100%;
    }
}