body {
    color: #fff;
    background: #151515;
}

.banner img{
    width: 100%;
}
.b1{
    position: relative;
}
.b1 .get{
    position: absolute;
    right: 23.5%;
    bottom: 14%;
    width: 23%;
    padding-bottom: 6%;
    background: url(https://chaolu.oss-cn-hangzhou.aliyuncs.com/website/join/get.png);
    background-size: 100% 100%;
    cursor: pointer;
}



.color-gray {
    color: #9D9D9D;
}

.mt {
    margin-top: 40px;
}


.fb{
    background: #fff;
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    
}
.fb_c{
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 15px 0;
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 15vw;
    max-height: 125px;
}
.bl{
    width: 49%;
}
.bget{
    width: 27%;
    
}
.zw{
    align-items: center;
    height: 15vw;
    max-height: 125px;
}