/**
  banner
   */
body {
    background-color: rgb(252, 252, 252);
    height: 3000px;
}
.row {
    margin: 0;
}
p{
    margin: 0;
}
h1{
    color: #222222;
    text-align: center;
}
.h1-red{
    color: #b5191f;
    text-transform: uppercase;
}
.h3-red{
    color: #d3261d;
    font-weight: bold;
}
/*首页banner*/
.banner {
    width: 100%;
    position: relative;
}
.banner img {
    width: 100%;
}

.banner-contact a{
    color: #FFFFFF;
}
.carousel-indicators li{
    width: 15px;
    height: 15px;
    border-radius: 50%;
    opacity: 1;
}
.carousel-indicators .active{
    background-color: rgb(230,0,18);
}
/*关于我们*/
.about-us{
    text-align: center;
}
.line-title span{
    position: relative;
}
.line-title span:before{
    content: '';
    border-bottom: 1px solid rgb(221,221,221);
    width: 100px;
    position: absolute;
    top: 50%;
}
.line-title span:after{
    content: '';
    border-bottom: 1px solid rgb(221,221,221);
    width: 100px;
    position: absolute;
    top: 50%;
}
article{
    color: #333333;
    font-weight: normal;
}
/*资质理念*/
.advantage{
    background-color: #3f4f63;
    color: #FFFFFF;
}
.advantage .container, .advantage .container .row{
    height: 100%;
}
.advantage .advantage-item{
    text-align: center;
    position: relative;
}
.advantage .advantage-item:nth-child(1){
    background: url("/imgs/zizhi.jpg") no-repeat;
    background-size: 100% 100%;
}
.advantage .advantage-item:nth-child(2){
    background: url("/imgs/linian.jpg") no-repeat;
    background-size: 100% 100%;
}
.advantage .advantage-item:nth-child(3){
    background: url("/imgs/wenhua.jpg") no-repeat;
    background-size: 100% 100%;
}
.advantage .advantage-item .cover{
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(5,26,53,0.75);
}
.advantage .advantage-item:nth-child(2) .cover{
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(211,38,29,0.75);
}

.advantage h2{
    position: relative;
    z-index: 10;
}
.advantage h2:before{
    content: '';
    width: 30px;
    position: absolute;
    border-bottom: 2px solid #FFFFFF;
    top: calc(100% + 15px);
    left: calc(50% - 15px);
}
.advantage ul li, .advantage p{
    font-size: 14px;
    line-height: 30px;
    padding: 0 20px;
}
/*产品中心*/
.product h1{
    text-align: center;
}
.product .product-center-title{
    background: url("/imgs/product_center_title.jpg") no-repeat;
    background-size: 100% 100%;
}
.product .product-center-title h1{
    color: #FFFFFF;
}
.product .product-btn{
    text-align: center;
    margin-top: 20px;
}
.product-item{
    position: relative;
    overflow: hidden;
}
.product-item .shadow-name{
    position: absolute;
    height: 100%;
    left: 0;
    right: 0;
    top: -100%;
    background-color: rgba(0,0,0,0.4);
    text-align: center;
    color: #FFFFFF;
    transition: top 0.4s;
}
.product-item .shadow-name a{
    color: #FFFFFF;
}
.product-item:hover .shadow-name{
    top: 0;
}
#carouselExampleControls .carousel-control-prev,#carouselExampleControls .carousel-control-next{
    top: calc(50% - 25px);
    width: 40px;
    height: 50px;
    background-color: #000000;
    opacity: 0.8;
    cursor: pointer;
}
.product article h1{
    color: rgb(70,76,81);
    text-align: left;
}
.product .line-title img{
    width: 40px;
    margin-right: 10px;
}
.product article p{
    color: #333333;
}
.btn a{
    display: inline-block;
    width: 150px;
    height: 30px;
    line-height: 30px;
    font-size: 14px;
    border-radius: 5px;
    color: #FFFFFF;
    background-color: rgb(211,38,29);
}
.btn a:hover{
    background-color: rgb(255,38,29);
}
.product .col img{
    width: 100%;
}
/*案例中心*/

.case h1{
    text-align: center;
}
.case .case-item{
    position: relative;
    margin-bottom: 30px;
    overflow: hidden;
}

.case .case-item img{
    width: 100%;
}
.case .case-item .cover{
    position: absolute;
    width: calc(100% - 30px);
    height: 100%;
    left: 15px;
    text-align: center;
    color: #FFFFFF;
    background-color: rgba(0,0,0,0.66);
    transition: top 0.5s;
}
.case .case-item:hover .cover{
    top: 0;
}
.case .case-item a{
    width: 100%;
    display: block;
    color: #FFFFFF;
    font-size: 20px;
    text-align: center;
}
/*证书*/
.certificate h1{
    text-align: center;
}
.certificate-img {
    margin-top: 20px;
    position: relative;
}
.certificate-img ul li{
    float: left;
}
.certificate-img ul li img{
    width: 100%;
}
/*合作伙伴*/
.customer{
    background: url("/imgs/customer_bg.jpg") no-repeat 100% 100%;
    min-height: 100px;
    overflow: hidden;
    padding: 30px 0 40px;
}
.customer .line-title{
    color: #FFFFFF;
}
.customer .line-title span:before, .customer .line-title span:after{
    border-bottom: 1px solid #FFFFFF;
}
.service .col img{
    width: 100%;
}

/*新闻*/
.news .row{
    margin-top: 40px;
}
.news .news-item{
    margin-bottom: 20px;
}
.news .news-img{
    /*width: 240px;*/
    float: left;
}
.news .news-img img{
    width: 100%;
}
.news .news-content{
    /*margin-left: 250px;*/
}
.news .news-content h3 a{
    display: block;
    font-weight: bold;
    color: #222222;
    width: 100%;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    padding-bottom: 5px;
}
.news .news-content .news-time{
    border-bottom: 1px solid #d3261d;
    color: #d3261d;
    padding-bottom: 4px;
    font-weight: bold;
}
.news .news-content .news-abstract{
    margin-top: 10px;
}
.news .news-content .news-abstract p{
    font-size: 14px;
    line-height: 22px;
    height: 120px;
    color: #777777;
}
.news-content .news-button {
    position: relative;
}
.news-content .news-button a{
    
}
.news-content .news-button svg{
    width: 30px;
    height: 30px;
    fill:#bfbfbf;
}

.news .news-btn{
    text-align: center;
    margin: 30px auto 40px;
}

@media only screen and (max-width: 575.98px ) {
    .h1-red{
        font-size: 20px;
    }
    .line-title span{
        font-size: 20px;
    }
    h1{
        font-size: 20px;
    }
    .line-title span:before{
        left: -110px;
    }
    .line-title span:after{
        right: -110px;
    }
    .container {
        max-width: 100%;
        padding-left: 10px;
        padding-right: 10px;
    }
    .banner-contact{
        position: absolute;
        left: 0;
        bottom: -150px;
        right: 0;
        background-color: rgba(197,39,51,0.76);
        color: #FFFFFF;
        min-height: 50px;
    }
    .banner-contact .banner-contact-item{
        height: 50px;
    }
    .banner-contact .banner-contact-item img{
        width: 25px;
        height: 25px;
        float: left;
        margin-top: 15px;
    }
    .banner-contact .banner-contact-item div{
        margin-left: 30px;
        margin-top: 12px;
    }
    /*关于我们*/
    .about-us{
        margin-top: 30px;
    }
    .about-us article{
        margin: 30px auto;
    }
    article h1{
        margin-bottom: 30px;
        font-weight: bold;
    }
    article p{
        font-size: 14px;
    }
    article h3{
        margin: 20px auto 20px;
    }
    article iframe{
        margin-top: 30px;
        width: 90%;
        height:200px;
    }
    .advantage{
        min-height: 400px;
        text-align: center;
        padding: 40px 0;
    }
    .advantage .advantage-item{
        min-height: 350px;
    }
    .advantage ul li, .advantage p{
        font-size: 12px;
        line-height: 26px;
    }
    .advantage .advantage-item .cover{
        padding-top: 40px;
    }
    .advantage h2{
        margin-bottom: 40px;
        font-weight: bold;
    }
    /*产品中心*/
    .product{
        margin-top: 180px;
    }
    .product article{
        margin: 30px auto 20px;
    }
    .product article p{
        font-size: 14px;
    }
    .product img{
        width: 100%;
    }
    .product .patented-img{
        display: none;
    }
    .product-center-title{
        padding: 40px 0;
    }
    .product .carousel-item .product-item{
        width: 48%;
        float: left;
        margin-right: 2%;
        margin-bottom: 10px;
    }
    .product-center-slide{
        padding-left: 6px;
        padding-right: 0;
    }
    /*案例中心*/
    .case{
        margin: 40px auto 30px;
    }
    .case-item .cover{
        display: none;
    }
    /*资质证书*/
    .certificate-img ul li{
        width: 25%;
        /*min-height: 220px;*/
    }
    .certificate-img ul li img{
        width: 100%;
    }
    .certificate-img .jiangbei{
        display: none;
    }
    /*合作伙伴*/
    .customer{
        margin-top: 40px;
        text-align: center;
    }
    .customer ul{
        width: 80%;
        margin: 40px auto;
        text-align: center;
    }
    .customer ul li{
        width: 20%;
        
        /* margin-right: 2.5%; */
        float: left;
        margin-bottom: 20px;
        border-radius: 50%;
        overflow: hidden;
    }
    .customer ul li img{
        width: 100%;
    }
    .customer ul li:nth-child(5n){
        margin-right: 0;
    }
    /*服务*/
    .service {
        margin: 40px auto;
    }
    .service-img{
        display: none;
    }
    .service .row{
        margin-top: 40px;
    }
    .service .row article h1{
        margin: 0 auto 20px;
        text-align: left;
        color: rgb(70,76,81);
    }
    .service .row article:nth-child(2){
        margin-top: 40px;
    }
    .service .row article p{
        color: rgb(112,114,115);
        font-size: 14px;
    }
    /*新闻中心*/
    .news-img{
        width: 20%;
    }
    .news .news-content h3{
        font-size: 1rem;
    }
    .news-img img{
        width: 100%;
    }
    .news-content{
        margin-left: 22%;
    }
    .news-abstract{
        display: none;
    }
    .news-button{
        display: none;
    }
}

@media only screen and (min-width: 575.98px) {

    .container {
        max-width: 550px;
    }
    .banner-contact{
        position: absolute;
        left: 0;
        bottom: -50px;
        right: 0;
        background-color: rgba(197,39,51,0.76);
        color: #FFFFFF;
        min-height: 50px;
    }
    .banner-contact .banner-contact-item{
        height: 66px;
        font-size: 12px;
    }
    .banner-contact .banner-contact-item img{
        width: 25px;
        height: 25px;
        float: left;
        margin-top: 15px;
    }
    .banner-contact .banner-contact-item:nth-child(2) img{
        width: 25px;
    }
    .banner-contact .banner-contact-item div{
        margin-left: 30px;
        margin-top: 12px;
    }
    .carousel-indicators{
        bottom: 0;
    }
    /*关于我们*/
    .about-us{
        margin-top: 50px;
    }

    .about-us article{
        margin: 30px auto;
    }
    article h1{
        margin-bottom: 30px;
        font-weight: bold;
    }
    article p{
        font-size: 14px;
    }
    article h3{
        margin: 30px auto 20px;
    }
    article iframe{
        margin-top: 30px;
        width: 90%;
        height:300px;
    }
    .line-title span:before{
        left: -110px;
    }
    .line-title span:after{
        right: -110px;
    }
    .advantage{
        min-height: 400px;
        text-align: center;
        padding: 40px 0;
    }
    .advantage .advantage-item{
        min-height: 350px;
    }
    .advantage .advantage-item .cover{
        padding-top: 40px;
    }
    .advantage h2{
        margin-bottom: 40px;
        font-weight: bold;
    }
    /*产品中心*/
    .product{
        margin-top: 60px;
    }
    .product article{
        margin: 30px auto 20px;
    }
    .product article p{
        font-size: 14px;
    }
    .product img{
        width: 100%;
    }
    .product .patented-img{
        margin-top: 160px;
    }
    .product-center-title{
        padding: 50px 0;
    }
    .product-center-slide{
        padding-right: 0;
    }
    .product .carousel-item .product-item{
        width: 48%;
        float: left;
        margin-right: 2%;
        margin-bottom: 10px;
    }
    .product-center-slide{
        padding-left: 6px;
        padding-right: 0;
    }

    /*案例中心*/
    .case{
        margin: 40px auto 30px;
    }
    .case-item .cover{
        display: none;
    }
    /*资质证书*/
    .certificate-img ul li{
        width: 30%;
        height: 234px;
    }
    .certificate-img .jiangbei{
        display: none;
    }
    /*合作伙伴*/
    .customer{
        margin-top: 40px;
        text-align: center;
    }
    .customer ul{
        width: 80%;
        margin: 40px auto;
    }
    .customer ul li{
        width: 18%;
        height: 75px;
        margin-right: 2.5%;
        float: left;
        margin-bottom: 20px;
        border-radius: 50%;
        overflow: hidden;
    }
    .customer ul li img{
        width: 100%;
    }
    .customer ul li:nth-child(5n){
        margin-right: 0;
    }
    /*服务*/
    .service {
        margin: 40px auto;
    }
    .service-img{
        display: none;
    }
    .service .row{
        margin-top: 40px;
    }
    .service .row article h1{
        margin: 0 auto 20px;
        text-align: left;
        color: rgb(70,76,81);
    }
    .service .row article:nth-child(2){
        margin-top: 40px;
    }
    .service .row article p{
        color: rgb(112,114,115);
        font-size: 14px;
    }
    .news-img{
        width: 30%;
    }
    .news-content{
        margin-left: 32%;
    }
    .news .news-content .news-abstract p{
        height: 66px;
        overflow: hidden;
    }
}

@media only screen and (min-width: 768px) {
    .container {
        max-width: 700px;
    }
    .about-us{
        margin-top: 80px;
    }
    .advantage{
        min-height: 300px;
        padding: 20px;
    }
    .advantage .advantage-item .cover{
        padding-top: 10px;
    }
    .advantage ul{
        margin-bottom: 0;
    }
    .advantage ul li , .advantage p{
        font-size: 12px;
        line-height: 25px;
    }
    .customer ul li{
        height: 97px;
    }
    /*资质证书*/
    .certificate-img ul li{
        width: 30%;
        height: 300px;
    }
    /*产品中心*/
    .product-center{
        margin-top: 50px;
    }
    .product .carousel-item .product-item{
        width: 48%;
        float: left;
        margin-right: 2%;
        margin-bottom: 10px;
    }
    .product .carousel-item .product-item:last-child{
        margin-right: 0;
    }
    .product-item .shadow-name{
        font-size: 20px;
    }
}

@media only screen and (min-width: 992px) {
    .container {
        max-width: 900px;
    }
    .banner-contact{
        position: absolute;
        left: 0;
        bottom: 0;
        right: 0;
        background-color: rgba(197,39,51,0.9);
        color: #FFFFFF;
    }
    .banner-contact{
        height: 50px;
    }
    .banner-contact .banner-contact-item img{
        width: 25px;
        height: 25px;
        float: left;
        margin-top: 15px;
    }
    .banner-contact .banner-contact-item:nth-child(2) img{
        width: 25px;
    }
    .banner-contact .banner-contact-item div{
        margin-left: 30px;
        margin-top: 12px;
    }
    .carousel-indicators{
        bottom: 50px;
    }
    /*关于我们*/
    .about-us{
        margin-top: 40px;
    }
    .about-us article{
        margin: 30px auto;
    }
    article h1{
        margin-bottom: 40px;
        font-weight: bold;
    }
    article p{
        font-size: 14px;
    }
    article h3{
        margin: 40px auto 20px;
    }
    article iframe{
        margin-top: 30px;
        width: 755px;
        height: 430px;
    }
    .line-title span:before{
        left: -110px;
    }
    .line-title span:after{
        right: -110px;
    }
    /*产品中心*/
    .product .patented-img{
        margin-top: 120px;
    }
    .product{
        margin-top: 40px;
    }
    .product article{
        margin: 30px auto 20px;
    }
    .product article p{
        font-size: 14px;
    }
    .product img{
        width: 100%;
        display: inline-block;
    }
    /*案例中心*/
    .case{
        margin: 40px auto 30px;
    }

    /*资质证书*/
    .certificate-img ul{
        width: 63%;
        float: left;
    }
    .certificate-img > img{
        width: 46%;
        float: left;
        position: absolute;
        top: -50px;
        right: 0;
    }
    .certificate-img ul li{
        width: 23%;
        margin-right: 2%;
        margin-bottom: 10px;
    }
    .certificate-img ul li:nth-child(4n){
        margin-right: 0;
    }
    .certificate-img .jiangbei{
        display: inline-block;
    }
    /*合作伙伴*/
    .customer{
        margin-top: 40px;
        text-align: center;
    }
    .customer ul{
        width: 80%;
        margin: 40px auto;
    }
    .customer ul li{
        width: 18%;
        height: 120px;
        margin-right: 2.5%;
        float: left;
        margin-bottom: 20px;
        border-radius: 50%;
        overflow: hidden;
    }
    .customer ul li img{
        width: 100%;
    }
    .customer ul li:nth-child(5n){
        margin-right: 0;
    }
    /*服务*/
    .service {
        margin: 40px auto;
    }
    .service .row{
        margin-top: 40px;
    }
    .service .row article h1{
        margin: 0 auto 20px;
        text-align: left;
        color: rgb(70,76,81);
    }
    .service .row article:nth-child(2){
        margin-top: 40px;
    }
    .service .row article p{
        color: rgb(112,114,115);
        font-size: 14px;
    }
    .service-img{
        display: inline-block;
    }
    .service-img img{
        width: 100%;
    }
}

@media only screen and (min-width: 1200px) {
    .container {
        max-width: 1000px;
    }
    .banner-contact{
        height: 50px;
    }
    .banner-contact .banner-contact-item img{
        width: 30px;
        height: 30px;
        float: left;
        margin-top: 12px;
    }
    .banner-contact .banner-contact-item:nth-child(2) img{
        width: 25px;
    }
    .banner-contact .banner-contact-item div{
        margin-left: 56px;
        margin-top: 15px;
        font-size: 14px;
    }
    /*关于我们*/
    .about-us{
        margin-top: 50px;
    }
    .about-us article{
        margin: 30px auto;
    }
    article h1{
        margin-bottom: 40px;
        font-weight: bold;
    }
    article p{
        font-size: 14px;
    }
    article h3{
        margin: 40px auto 20px;
    }
    article iframe{
        margin-top: 30px;
        width: 755px;
        height: 430px;
    }
    .advantage{
        padding:0;
    }
    .advantage .advantage-item .cover{
        padding-top: 30px;
    }
    .advantage ul li , .advantage p{
        font-size: 13px;
        line-height: 25px;
    }
    /*产品中心*/
    .product .patented-img{
        margin-top: 0;
    }
    .product-center{
        margin-top: 50px;
    }
    .product .carousel-item .product-item{
        width: 24%;
        float: left;
        margin-right: 1%;
        margin-bottom: 0;
        height: 100%;
    }
    .product .carousel-item .product-item img{
        height: 100%;
    }
    .product .carousel-item .product-item:last-child{
        margin-right: 0;
    }
    .product-item .shadow-name{
        font-size: 20px;
    }
    #carouselExampleControls{
        height: 100%;
    }
    #carouselExampleControls .carousel-inner{
        height: 100%;
    }
    #carouselExampleControls .carousel-inner .carousel-item{
        height: 100%;
    }
    /*案例中心*/
    .case ul{
        margin-top: 50px;
    }
    .case .case-item .cover{
        top: -110%;
    }
    .case-item .cover{
        display: flex;
    }
    /*资质证书*/

    .certificate-img > img{
        top: -70px;
    }

    /*合作伙伴*/
    .customer{
        margin-top: 50px;
        text-align: center;
    }
    .customer ul li{
        width: 18%;
        height: 140px;
    }
    .customer ul li img{
        width: 100%;
    }
    /*服务*/
    .service {
        margin: 50px auto;
    }
    .service .row{
        margin-top: 40px;
    }
    .service .row article h1{
        margin: 0 auto 20px;
        text-align: left;
        color: rgb(70,76,81);
    }
    .service .row article:nth-child(2){
        margin-top: 40px;
    }
    .service .row article p{
        color: rgb(112,114,115);
        font-size: 14px;
    }
}

@media only screen and (min-width: 1500px) {
    .container{
        max-width: 1200px;
    }
    h1{
        font-size: 30px;
    }
    .h1-red{
        font-size: 28px;
    }
    h2{
        font-size: 25px;
    }
    .container {
        max-width: 1200px;
    }
    .banner-contact{
        height: 70px;
    }
    .banner-contact .banner-contact-item img{
        width: 46px;
        height: 46px;
        float: left;
        margin-top: 12px;
    }
    .banner-contact .banner-contact-item:nth-child(2) img{
        width: 37px;
    }
    .banner-contact .banner-contact-item div{
        margin-left: 56px;
        margin-top: 16px;
    }
    .carousel-indicators{
        bottom: 70px;
    }
    /*关于我们*/
    .about-us{
        margin-top: 60px;
    }
    .about-us article{
        margin: 50px auto;
    }
    article h1{
        margin-bottom: 40px;
        font-weight: bold;
    }
    article p{
        font-size: 18px;
    }
    article h3{
        margin: 40px auto 20px;
    }
    article iframe{
        margin-top: 30px;
        width: 755px;
        height: 430px;
    }
    /*产品中心*/
    .product{
        margin-top: 60px;
    }
    .product article{
        margin: 30px auto 20px;
    }
    .product article p{
        font-size: 18px;
    }

    /*advantage*/
    .advantage{
        height: 388px;
    }
    .advantage h2{
        margin-top: 50px;
        margin-bottom: 30px;
        font-weight: bold;
    }

    .customer ul li{
        width: 18%;
        height: 173px;
        margin-right: 2.5%;
        float: left;
        margin-bottom: 20px;
        border-radius: 50%;
        overflow: hidden;
    }
    .service .row article p{
        color: #333333;
        font-size: 18px;
    }

}