.container {
    background: white;
}
.sub1, .sub2, .sub3, .sub4 {
    margin-top: 100px;
}

.sub1 {
    width: 1900px;
    height: 4848px;
    position: relative;
    overflow: hidden;
    background: url("../img/sub1.jpg");
}


.sub1 .mov_1 {
    background: url("../img/sub_m01.png");
    width: 599px;
    height: 377px;
    margin-left: 202px;
    margin-top: 743px;
    position: absolute;
}
.sub1 .mov_2 {
    background: url("../img/sub_m02.png");
    width: 599px;
    height: 377px;
    margin-left: 500px;
    margin-top: 2689px;
    position: absolute;
}
.sub1 .mov_3 {
    background: url("../img/sub_m03.png");
    width: 599px;
    height: 377px;
    margin-left: 801px;
    margin-top: 3096px;
    position: absolute;
}
.sub1 .top {
    background: url("../img/top.png");
    width: 50px;
    height: 50px;
    bottom: 130px;
    right: 75px;
    position: absolute;
    cursor: pointer;
}


.sub2 {
    width: 1900px;
    height: 4347px;
    position: relative;
    overflow: hidden;
    background: url("../img/sub2.jpg");
}

.sub2 .top {
    background: url("../img/top.png");
    width: 50px;
    height: 50px;
    bottom: 130px;
    right: 75px;
    position: absolute;
    cursor: pointer;
}



.sub3 {
    width: 1900px;
    height: 3847px;
    position: relative;
    overflow: hidden;
    background: url("../img/sub3.jpg");
}

.sub3 .top {
    background: url("../img/top.png");
    width: 50px;
    height: 50px;
    bottom: 130px;
    right: 75px;
    position: absolute;
    cursor: pointer;
}




.sub4 {
    width: 1900px;
    height: 1346px;
    position: relative;
    overflow: hidden;
    background: url("../img/sub4.jpg");
}

.sub4 .top {
    background: url("../img/top.png");
    width: 50px;
    height: 50px;
    bottom: 130px;
    right: 75px;
    position: absolute;
    cursor: pointer;
}