.wrap{
    height: 100vh;
    width: 100%;
}
.main{
    background: url('../../assets/images/index/banner.png');
    background-size: 100% 100%;
    width: 100%;
    height: 100vh;
    display: flex;
    flex-direction: column;
}
.wrap .top {
    width: 100%;
    display: flex;
    padding: 39px 15% 0 6%;
}

.wrap .main .content{
    display: flex;
    justify-content: center;
}

.wrap .main .content .banner_desc{
    width: 1089px;
    height: 96px;
    position: fixed;
    top: 50%;
    left: 50%;
    transform: translate(-50%,-50%);
}
.wrap .top .tabs .a_white {
    color: rgba(255,255,255,0.5);
}
.wrap .top .tabs .bottom_border_white {
    opacity: 1;
    color: #fff;
    position: relative;
}
.bottom_border_white::after{
    content: "";
    width: 36px;
    height: 4px;
    background: #fff;
    border-radius: 4px;
    position: absolute;
    bottom: -5px;
    left: 50%;
    transform: translateX(-50%);
}