body{
    margin: 0px;
    font-family:"Microsoft YaHei",微软雅黑,"Microsoft JhengHei",华文细黑,STHeiti,MingLiu;
    position: fixed;
    background-color: #0a1016;

}
.body-div {
    background-image: url(../image/bg.png);
    width: 1920px;
    height: 1080px;
    margin: 0px;
    text-align: center;
    position: absolute;
}

.bottom-div{
    width: 1920px;
    height: 300px;
    position: absolute;
    bottom: 0px;
    background: url(../image/indexBodyBg.png) no-repeat;
}
.bottom-div .ptName{
    position: absolute;
    top: 157px;
    width: 100%;
    text-align: center;
    color: rgb(0, 253, 252);
    font-size: 46px;
    letter-spacing: 2px;
}
.nlh-wh-div{
    height: 1200px;
    width: 1200px;
    margin-top: -120px;
    margin-left:  360px;
    border-radius: 50%;
    overflow: hidden;
    position: absolute;
    transform: rotate(360deg);
    animation: rotation 8s linear infinite;
}
.nlh-nh-div{
    height: 1200px;
    width: 1200px;
    margin-top: -120px;
    margin-left:  360px;
    border-radius: 50%;
    overflow: hidden;
    position: absolute;
    transform: rotate(360deg);
    animation: rotation1 16s linear infinite;
}

.earth-div{
    height: 500px;
    width: 500px;
    margin-top: 230px;
    margin-left: 710px;
    border-radius: 50%;
    overflow: hidden;
    position: absolute;
    transform: rotate(360deg);
    animation: rotation 8s linear infinite;
}

.qin-div{
    height: 500px;
    width: 500px;
    margin-top: 230px;
    margin-left: 710px;
    border-radius: 50%;
    overflow: hidden;
    position: absolute;
}
.sxdt-div{
    height: 500px;
    width: 500px;
    margin-top: 230px;
    margin-left: 710px;
    border-radius: 50%;
    overflow: hidden;
    position: absolute;
    display: none;
}
.chanye-div{
    width: 1400px;
    height: 850px;
    margin-left: 260px;
    position: absolute;
}
.chanye-div img{
    opacity:0.2;
    position: absolute;
}
.chanye1-img{
    top: 50px;
    right: 50px;
}
.chanye2-img{
    top: 250px;
    right: 0px;
}
.chanye3-img{
    top: 450px;
    right: 0px;
}
.chanye4-img{
    bottom: 50px;
    right: 50px;
}
.chanye5-img{
    bottom: 50px;
    left: 50px;
}
.chanye6-img{
    top: 450px;
    left: 0px;
}
.chanye7-img{
    top: 250px;
    left: 0px;
}
.chanye8-img{
    top: 50px;
    left: 50px;
}
@keyframes rotation {
    from {
        transform: rotate(0deg);
    }
    to {
        transform: rotate(360deg);
    }
}
@keyframes rotation1 {
    from {
        transform: rotate(360deg);
    }
    to {
        transform: rotate(0deg);
    }
}