.product{
    height: auto;
    display: inline-block;
    background-color: #f8f8f8;
    padding-bottom: 5%;
    width: 100%;
    padding-top: 1%;
}
.pro-left{
    width: 35%;
    float: left;
    margin-top: 2%;
}
.pro-left img{
    width: 100%}
.pro-right {
    width: 62%;
    float: right;
    margin-top: 2%;
}
.pro-right h3{
    color: #187bb7;
    font-size: 27px;
    padding-bottom: 2%;
}
.pro-right h4{
    font-size: 23px;
    letter-spacing: 2px;
    font-weight: bold;
}
.pro-right p{
    font-size: 15px;
    line-height: 32px;
}
.case-bottom {
    width: 100%;
    height: auto;
    display: inline-block;
}
.case-bottom h3 {
    font-size: 23px;
    color: #000;
    line-height: 25px;
    font-weight: bold;
    letter-spacing: 1px;
    margin-bottom: 18px;
}
.caseb-box {
    width: 100%;
    height: auto;
    display: inline-block;
}
.caseb-box ul {
    width: 100%;
    height: auto;
    display: inline-block;
}

.caseb-box li {
    width: 100%;
    height: 48px;
}

.caseb-box li:nth-child(2n) {
    background: #fff;
}
.pro-box{
    width: 100%;
    height: auto;
    display: inline-block;
}
.pro-box ul {
    width: 100%;
    height: auto;
    display: inline-block;
}
.pro-box li {
    width: 30%;
    float: left;
    margin-right: 3%;
    margin-top: 3%;
}
.pro-box img {
    width: 65% !important;!i;!;!;!I;!;
    text-align: center;
    margin: 0 auto;
    display: block;
    padding: 30px 0;
    height: 188px  !important;
}
.pro-box h3 {
    font-size: 16px;
    width: 100%;
    display: inline-block;
    height: auto;
    padding-top: 4%;
    border-top: 2px solid #176dcd;
    margin-top: 7%;
}
.pro-nav{
    width: 100%;
    height: auto;
    display: inline-block;
    margin-top: 3%;
    overflow-x: auto;
}
.pn-box{
    width: 25%;
    float: left;
    text-align: center;
}
@media screen and (max-width: 1024px) and (min-width: 0px) {
    .banner {
        margin-top: 6%;
    }
    .pro-box li {
        width: 100%;
        float: left;
        margin-right: 0%;
        margin-top: 3%;
    }
    .pro-box img {
        width: 65% !important;
        text-align: center;
        margin: 0 auto;
        display: block;
        padding: 30px 0;
        height: auto !important;
    }
}