#content_div {
    width: 100%;
    height: 758px;
    background: linear-gradient(180deg, #302274 0%, #5050AC 100%);
}

#content_div_nr {
    background-image: url(../img/index/ctbj.png);
    background-position-y: 138px;
    background-repeat: no-repeat;
    padding-top: 138px;
    width: 1423px;
    height: 640px;
}
#content_div_nr>div{
    width: 440px;
    margin-top: 17px;
    margin-left: calc(50% + 14px);
}
#content_div_nr>div>img:nth-child(2){
    cursor: pointer;
    transition: .2s;
}
#content_div_nr>div>img:nth-child(2):hover{
    margin-top: -5px;
}

.page {
    width: 100%;
    height: 900px;
}

.page>div {
    padding-top: 153px;
    width: 833px;
    height: 531px;
}