@media screen and (max-width: 1680px) {
}
@media screen and (max-width: 1440px) {
}
@media screen and (max-width: 1366px) {
}
@media screen and (max-width: 1280px) {
}
@media screen and (max-width: 1160px) {
}
@media screen and (max-width: 900px) {

    .banner-box{padding-top: calc(100vw * 100 / 800); height: calc(100vw * 434 / 800);}
    .banner-box img { height: calc(100vw * 74 / 800);}

    .explain {
        margin-top: calc(-100vw * 140 / 800);
        padding: calc(100vw * 25 / 800);
        box-shadow: 0 calc(100vw * 2 / 800) calc(100vw * 15 / 800) 0 #EEF0F2;
    }
    .explain .left-explain {
        position: static;
        justify-content: center;
        margin: 0 auto calc(100vw * 15 / 800) auto;
        padding: calc(100vw * 15 / 800);
        width: calc(100vw * 174 / 800);
        height: calc(100vw * 50 / 800);
        line-height: calc(100vw * 60 / 800);
        font-size: .42rem;
        border: calc(100vw * 3 / 800) solid #3B87FF;
    }
    .explain .right-explain {
        width: 100%;
        min-height: calc(100vw * 150 / 800);
        font-size: .24rem;
        line-height: calc(100vw * 50 / 800);
    }
    .info-item {
        margin: calc(100vw * 60 / 800) auto 0;
    }
    .info-item .item {
        justify-content: center;
        margin-bottom: calc(100vw * 40 / 800);
        width: calc((100% - (100vw * 40 / 800)) / 2);
        height: calc(100vw * 105 / 800);
        border-radius: calc(100vw * 12 / 800);
        -webkit-border-radius: calc(100vw * 12 / 800);
        -moz-border-radius: calc(100vw * 12 / 800);
        -ms-border-radius: calc(100vw * 12 / 800);
        -o-border-radius: calc(100vw * 12 / 800);
    }
    .info-item .item .info-name {
        margin-left: calc(100vw * 20 / 800);
        font-size:.29rem;
        text-align: center;
    }
    .info-item .item img {
        display: none;
        top: calc(100vw * 44 / 800);
        right: calc(100vw * 20 / 800);
        height: calc(100vw * 118 / 800);
    }
}

@media screen and (max-width: 750px) {

    .banner-box{padding-top: calc(100vw * 70 / 500); height: calc(100vw * 354 / 500);}
    .banner-box img { height: calc(100vw * 55 / 500);}

    .explain {
        margin-top: calc(-100vw * 140 / 500);
        padding: calc(100vw * 25 / 500);
        box-shadow: 0 calc(100vw * 2 / 500) calc(100vw * 15 / 500) 0 #EEF0F2;
    }
    .explain .left-explain {
        padding: calc(100vw * 15 / 500);
        width: calc(100vw * 174 / 500);
        height: calc(100vw * 50 / 500);
        line-height: calc(100vw * 60 / 500);
        font-size: .48rem;
        border: calc(100vw * 3 / 500) solid #3B87FF;
    }
    .explain .right-explain {
        width: 100%;
        min-height: calc(100vw * 150 / 500);
        font-size: .3rem;
        line-height: calc(100vw * 40 / 500);
    }
    .info-item {
        margin: calc(100vw * 40 / 500) auto 0;
    }
    .info-item .item {
        margin-bottom: calc(100vw * 25 / 500);
        width: calc((100% - (100vw * 30 / 500)) / 2);
        height: calc(100vw * 95 / 500);
        border-radius: calc(100vw * 12 / 500);
        -webkit-border-radius: calc(100vw * 12 / 500);
        -moz-border-radius: calc(100vw * 12 / 500);
        -ms-border-radius: calc(100vw * 12 / 500);
        -o-border-radius: calc(100vw * 12 / 500);
    }
    .info-item .item .info-name {
        margin-left: calc(100vw * 10 / 500);
        font-size: .35rem;
       
    }
    .info-item .item img {
        top: calc(100vw * 34 / 500);
        right: calc(100vw * 10 / 500);
        height: calc(100vw * 78 / 500);
    }
   
}