.register-w {
    position: relative;
    height: 1080px;
    background: var(--registerBg) no-repeat 50% 0;
    background-size: cover;
}

.register-w .mxdc-logo {
    top: 40px;
    left: 40px;
}

.register-w .tips-wrap {
    top: 180px;
    left: 50px;
}

.header {
    height: 308px;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    color: #fff;
    gap: 30px;
}

.header .new_logo {
    background: url(https://static.web.sdo.com/mxdc/pic/mxdc_website/web2/pc/shengqu-logo.png) no-repeat;
    width: 148px;
    height: 51px
}

.header h3 {
    width: 388px;
    height: 35px;
    margin: 0 auto;
    text-indent: -9999px;
    background: url(https://static.web.sdo.com/mxdc/pic/mxdc_website/web2/pc/shengqu-txt.png) no-repeat 50% 0;
}

.iframe {
    position: absolute;
    top: 308px;
    left: 50%;
    width: 450px;
    margin-left: -225px;
}