.main {
    background-color: #19161B;
    width: 100%;
}
.main > div {
    width: 1000px;
    margin: 0 auto;
}
.back-img {
    width: 16px;
    height: 14px;
}
.main > div > div:nth-child(1) {
    padding-top: 40px;
}
.main > div > div:nth-child(1) > span:nth-child(1) {
    font-size: 14px;
    font-family: PingFang SC;
    font-weight: 500;
    color: #959496;
}
.main > div > div:nth-child(1) > span:nth-child(2) {
    font-size: 14px;
    font-family: PingFang SC;
    font-weight: 500;
    color: #959496;
    float:right;
}
.main > div > div:nth-child(2) {
    font-size: 28px;
    font-family: PingFang SC;
    font-weight: 500;
    color: #FFFFFF;
    padding-top: 99px;
    text-align: center;
    padding-bottom: 35px;
}
.main > div > div:nth-child(3) {
    padding-bottom: 58px;
    font-size: 14px;
    font-family: PingFang SC;
    font-weight: 500;
    color: #959496;
    text-align: center;
}
.main > div > div:nth-child(4) {
    text-align:center;
}
.main > div > div:nth-child(4) img {
    padding-bottom: 20px;
}
.main > div > div:nth-child(4) div {
    text-align: left;
    font-size: 11pt;
    font-family: PingFang SC;
    font-weight: 500;
    color: #979698;
    padding-bottom: 20px;
    line-height: 36px;
}