.banner-img-mask{
    width: 100%;
    height: 100%;
    position: absolute;
    top: 0;
    left: 0;
    z-index: 1;
    background-color: #FFF;
}
.banner-img-mask{
    display: none;
}
/*--------------------------------*/
.banner-box{
    margin-top: 100px;
    width: 100%;
    height: 700px;
    position: relative;
}
.banner-img-box{
    width: 100%;
    height: 100%;
    display: block;
    position: relative;
    overflow: hidden;
}
.banner-slong-box{
    position: absolute;
    top: 30%;
    width: 100%;
    left: 0;
    z-index: 1;
}
.banner-slong{
    font-size: 46px;
    font-family: "Abel";
    width: 1200px;
    max-width: 100%;
    display: block;
    margin: 0 auto;
    letter-spacing: 4px;
    display: none;
}

.not-banner.banner-box{
    height: 0;
    margin-top: 100px;
}
.not-banner .banner-img-box,
.not-banner .banner-slong-box{
    display: none;
}


@media only screen and (max-width: 1480px){
    .banner-box{
        height: 560px;
    }
}
@media only screen and (max-width: 1200px){
    .banner-box{
        height: 436px;
    }
    .banner-slong{
        width: 95%;
    }
}
@media only screen and (max-width: 1000px){
    .banner-box{
        margin-top: 87px;
        height: 500px;
    }
}
@media only screen and (max-width: 750px){
    .banner-slong{
        font-size: 30px;
    }
}
@media only screen and (max-width: 550px){
    .banner-box{
        height: 350px;
    }
}
@media only screen and (max-width: 400px){
    .banner-box{
        margin-top: 58px;
    }
}