header.white .header-right .btn-lan{
    background-image: url("../images/icon-language-white.png");
    background-size: 20px auto;
}
header .header-right .btn-lan,
header.fixed .header-right .btn-lan{
    background-image: url("../images/icon-language.png");
}




/* green */
.btn-more.green {
    background-color: #4db443;
    font-size: 16px;
    border-color: #4db443;
    color: #fff;
}

.btn-more.green i {
    background-image: url("../images/icon-arrow-white.png");
}


body {
    padding-top: 0;
}

header .logo1 {
    display: none;
}

header {
    background-color: #fff;
}

header.hover {
    background-color: #fff;
}

header.hover .header-nav .header-nav-item a {
    color: #333;
}

header.white {
    background-color: transparent;
}

header.white .header-nav .header-nav-item a {
    color: #fff;
}

header.white .logo1 {
    display: block;
}

header .logo-white {
    display: block;
}

header.white .logo-white {
    display: none;
}
@media (max-width: 1024px) {
    header.white{
        background-color: #fff;
    }
    
    header.white .header-nav .header-nav-item a {
        color: #333;
    }
    header.white .logo1 {
        display: none;
    }
    header.white .logo-white{
        display: block;
    }
  

}



/* .banner */

.banner,
.swiper {
    height: 940px;
}


.banner .item {
    width: 100%;
    height: 940px;
    position: absolute;
    left: 0;
    top: 0;
    background-repeat: no-repeat;
    background-position: center top;
    color: #fff;
    display: flex;
    align-items: center;
}


.banner .item .bg{
    position: absolute;
    width: 100%;
    height: 100%;
    left: 0;
    background-repeat: no-repeat;
    background-position: center top;
    background-size: 100% auto;
}

.banner .item .bg.phone{
    display: none;
}

@media (max-width: 768px) {
    .banner .item .bg.phone{
        display: block;
    }
    .banner .item .bg.pc{
        display: none;
    }
}

.banner .banner-txt {
    text-align: left;
}

.banner .banner-txt .btn-more {
    margin-left: 0;
    width: 180px;
    height: 50px;
    max-width: 180px;
    font-size: 16px;
    border-radius: 90px;
    margin-top: 80px;
    margin-top: calc(10px + 3.6vw);
}

.banner .banner-txt .btn-more i {
    background-size: 18px auto;
    width: 18px;
}


.banner .banner-txt .txt {
    display: flex;
    align-items: center;
        line-height: 1.3;
    font-family: "SOURCEHANSANSCN-Midium";
}

.banner .banner-txt .txt h2 {
    margin-left: 25px;
    font-size: 60px;

}

.banner .banner-txt h3 {
    font-size: 26px;
    text-transform: uppercase;
    color: rgba(21, 255, 207, .5);
    letter-spacing: 2px;
    margin-top: 3px;
}

.banner .swiper-pagination-bullet {
    width: 12px;
    height: 12px;
    background-color: transparent;
    border: 1px solid #fff;
    opacity: 1;
    margin-left: 8px !important;
    margin-right: 8px !important;
}

.banner .swiper-pagination-bullet.swiper-pagination-bullet-active {
    background-color: #fff;
}

.swiper-horizontal>.swiper-pagination-bullets,
.swiper-pagination-bullets.swiper-pagination-horizontal {
    bottom: 40px;
}


.banner.phone{
    display: none;
}


@media (max-width: 768px) {
    .banner.pc{
        display: none;
    }
    .banner.phone{
        display: block;
    }
}

/* pro */
.product-wrap {
    padding: 8vw 0;
    background: url("../images/index-probg.jpg") no-repeat bottom;
}

.product-wrap .row {
    display: flex;
    margin-left: -8px;
    margin-right: -8px;
}

.product-wrap .row a {
    width: calc(33.33% - 16px);
    position: relative;
    border-radius: 20px;
    overflow: hidden;
    margin-left: 8px;
    margin-right: 8px;
}


.product-wrap .row a .img {
    height: 0;
    overflow: hidden;
    padding-top: 157.52%;
    position: relative;
}

.product-wrap .row a .img img {
    position: absolute;
    width: 100%;
    left: 0;
    bottom: 0;
}

.product-wrap .row a .txt {
    position: absolute;
    left: 0;
    top: 80px;
    width: 100%;
    text-align: center;
    color: #fff;
    z-index: 1;
}

.product-wrap .row a .txt .title {
    font-size: 30px;
    margin-bottom: 10px;
}

.product-wrap .row a .txt .f-title {
    font-size: 26px;
}

.product-wrap .row a .txt .intro {
    font-size: 16px;
    line-height: 1.8;
    margin-top: 15px;
    max-height: 92px;
    overflow: hidden;
}

.product-wrap .row a .btn-more {
    background-color: transparent;
    border: 1px solid #fff;
    font-size: 16px;
    color: #fff;

}

.product-wrap .row a .btn-more i {
    background-image: url("../images/icon-arrow-white.png");
}

.product-wrap .row a .txt .hide {
    opacity: 0;
    height: 0;
    transition: all .4s ease;

}

.product-wrap .row a:hover .hide {
    opacity: 1;
    height: 120px;
}

.product-wrap .row a:hover .btn-more {
    background-color: #4DB443;
    border-color: #4DB443;

}

/* 核心技术 */
.technology-wrap {
    position: relative;

}

.technology-wrap .tab-wrap {
    position: absolute;
    left: 0;
    top: 0;
    /* padding-top: 6.25vw; */
    /* padding-top: 120px; */
    padding-top: calc(60px + 3.125vw);
    width: 100%;
    height: 100%;
    color: #fff;
}

.technology-wrap .btn-more {
    margin-left: 0;
    margin-top: calc(10px + 2.08vw);
}

.technology-wrap .tab-title {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.technology-wrap .tab-title h2 {
    /* font-size: 48px; */
    font-size: calc(12px + 1.875vw);
}

.technology-wrap .tab-title ul {
    display: flex;
    align-items: center;
    padding-right: 3px;
}

.technology-wrap .tab-title ul li {
    font-size: 16px;
    border: 1px solid #fff;
    padding: 10px calc(10px + 1.9vw);
    border-radius: 23px;
    margin-left: 40px;
    cursor: pointer;
    position: relative;
    transition: all .35s ease;
    
}

.technology-wrap .tab-title ul li::before,
.technology-wrap .tab-title ul li::after {
    content: "";
    display: inline-block;
    width: 5px;
    height: 5px;
    background: #FFFFFF;
    border-radius: 50%;
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
}

.technology-wrap .tab-title ul li::before {
    left: -3px;
}

.technology-wrap .tab-title ul li::after {
    right: -3px;
}

.technology-wrap .tab-title ul li.cur {
    background-color: #4DB443;
    color: #fff;
    border-color: #4DB443;
}

.technology-wrap .tab-title ul li i {
    width: 40px;
    height: 1px;
    background-color: #fff;
    position: absolute;
    left: 100%;
    top: 50%;
    transform: translateY(-50%);

}


.technology-wrap .tab-con {
    margin-top: 11.4vw;

}

.technology-wrap .tab-con .tab-item {
    display: none;
}

.technology-wrap .tab-con .tab-item h2 {
    /* font-size: 26px; */
    font-size: calc(12px + .7vw);
    margin-bottom: 16px;
}

.technology-wrap .tab-con .tab-item p {
    font-size: 16px;
    line-height: 1.8;

}

.technology-wrap .tab-con .tab-item.show {
    display: block;
}


.technology-wrap .tab-bg .bg {
    display: none;

    height: 825px;

    height: calc(400px + 22.1vw);

}
.technology-wrap .tab-bg .bg .pc,
.technology-wrap .tab-bg .bg .phone{
    width: 100%;
    height: 100%;
    background-repeat: no-repeat;
    background-position: center;
}

.technology-wrap .tab-bg .bg.show {
    display: block;
}

.technology-wrap .tab-bg .bg .phone{
    display: none;
}
@media (max-width: 768px) {
    
    .technology-wrap .tab-bg .bg .phone{
        display: block;
    }
    .technology-wrap .tab-bg .bg .pc{
        display: none;
    }
}

#side-nav {
    position: fixed;
    right: 0;
    top: 50%;
    z-index: 999;
}

#side-nav a {
    display: block;
    font-size: 16px;

    line-height: 60px;
    cursor: pointer;
    position: relative;
    padding-right: 52px;
    color: #fff;
    transition: all .3s ease;
}

#side-nav li {
    position: relative;
}

#side-nav li.active a {
    font-size: 20px;
}

#side-nav li.active::after {
    content: "";
    display: block;
    width: 30px;
    height: 2px;
    position: absolute;
    right: 0;
    top: 50%;
    transform: translateY(-50%);

}

#side-nav.white a {
    color: #fff;
}

#side-nav.white li.active::after {
    background-color: #fff;
}

#side-nav.black a {
    color: #bbb;
}

#side-nav.black li.active a {
    color: #333;
}

#side-nav.black li.active::after {
    background-color: #333;
}

#side-nav.green a {
    color: #fff;
}

#side-nav.green a.active a {
    color: #4DB443;

}

#side-nav.green li.active::after {
    background-color: #4DB443;
}

#side-nav.gray a {
    color: #999;
}

#side-nav.gray li.active a {
    color: #333;

}

#side-nav.gray li.active::after {
    background-color: #333;
}


@media (max-width: 1440px) {

    .banner,
    .swiper,
    .banner .item {
        height: 800px;
    }

    .banner .banner-txt .txt h2{
        font-size: 52px;
    }

    .banner .banner-txt .img {
        width: 150px;

    }

    .banner .banner-txt h3 {
        font-size: 24px;
    }

    .banner .banner-txt .btn-more {
        height: 46px;

    }

    .product-wrap .row a .txt .title {
        font-size: 24px;
    }

    .product-wrap .row a .txt .f-title {
        font-size: 20px;
    }

    .technology-wrap .tab-con .tab-item h2 {
        margin-bottom: 10px;
    }

    #side-nav a {
        line-height: 50px;
    }
}

@media (max-width: 1024px) {
    .banner .banner-txt .txt h2 {
        font-size: 42px;

    }
    .banner .banner-txt h3{
        font-size: 20px;
    }
    .banner .banner-txt .img {
        width: 130px;
    }

    .banner,
    .swiper,
    .banner .item {
        height: 700px;
    }

    .product-wrap .row a .txt .title{
        font-size: 22px;
    }
    .product-wrap .row a .txt .f-title{
        font-size: 18px;
    }

    .product-wrap .row a .btn-more,
    .product-wrap .row a .txt .intro{
        font-size: 15px;
    }
    .technology-wrap .tab-title{
        flex-direction: column;
        align-items: flex-start;
    }
    .technology-wrap .tab-title ul li:first-child{
        margin-left: 0;
    }
    .technology-wrap .tab-title ul li:last-child{
        margin-right: 0;
    }
    .technology-wrap .tab-title ul{
        margin-top: 30px;
        justify-content: center;
        width: 100%;
        padding: 0;
    }

    .technology-wrap .tab-title ul li{
        margin-left: 10px;
        margin-right: 10px;
    }
    .technology-wrap .tab-con{
        margin-top: 9vw;
    }
    .btn-more.green{
        font-size: 15px;
    }

    .technology-wrap .tab-title h2{
        width: 100%;
        text-align: center;
    }
    .technology-wrap .tab-title ul li i,
    .technology-wrap .tab-title ul li::before, .technology-wrap .tab-title ul li::after{
        display: none;
    }

}
@media (max-width: 768px) {
 
    .banner .banner-txt{
        text-align: center;
        position: absolute;
        width: 100%;
        bottom: 10vh;
        left: 0;

    }
    .banner .item{
        background-size: 100% auto;
    }
    .banner, .swiper, .banner .item{
        height: 100vh;

    }
   
    .banner .banner-txt .txt{
        justify-content: center;

    }
    .banner .banner-txt .txt h2{
        text-align: left;

    }
    .banner .banner-txt .btn-more{
        margin-left: auto;
        margin-right: auto;

    }
    .technology-wrap .tab-title ul li{
        width: auto;
    }
    .product-wrap .row a{
        width: 100%;
        position: relative;
        margin-top: 2vw;
        margin-bottom: 2vw;
        margin-left: 0;
        margin-right: 0;

    }
    .product-wrap .row a .txt .title{
        margin-bottom: 5px;
    }

    .product-wrap .row a .txt .intro{
        margin-top: 10px;
        line-height: 1.6;
    }
    .product-wrap .row{
        margin-left: 0;
        margin-right: 0;
    }
    .product-wrap .row a .img{
        padding-top: 68%;
    }

    .product-wrap .row{
        flex-wrap: wrap;
    }
    .product-wrap .row a .hide{
        height: auto;
        opacity: 1;
    }
    .product-wrap .row a .txt{
        top: 50%;
        transform: translateY(-50%);
    }
    .product-wrap .row a .txt .hide{
        height: auto;
        opacity: 1;
    }
    .product-wrap .row a .btn-more {
        background-color: #4DB443;
        border-color: #4DB443;
    }

    .product-wrap .row a::before{
        content: "";
        display: block;
        position: absolute;
        left: 0;
        top: 0;
        width: 100%;
        height: 100%;
        background-color: rgba(0, 0, 0, .2);
        z-index: 1  ;
    }


    .banner .banner-txt .txt h2{
        font-size: 34px;
        margin-left: 15px;
    }

    .banner .banner-txt .img{
        width: 100px;

    }
    .banner .banner-txt .btn-more{
        font-size: 14px;

        height: 40px;
        line-height: 40px;
        width: 150px;
    }
    .banner .banner-txt h3{
        font-size: 18px;
    }

    #side-nav{
        display: none;
    }

    .technology-wrap .tab-title ul li{
        font-size: 15px;
        padding: 6px 15px;
    }
 
    .technology-wrap .tab-con .tab-item h2{
        font-size: 18px;
    }
    .technology-wrap .tab-con .tab-item p{
        font-size: 15px;

    }
   
}

@media (max-width: 640px) {
    /* .banner, .swiper, .banner .item{
        height: 100vh;
    } */
    .banner .banner-txt .txt h2{
        font-size: 26px;
    }
    .banner .banner-txt .img {
        width: 72px;
    }
    .product-wrap .row a .img {
        padding-top: 100%;
    }
    .technology-wrap .btn-more{
        display: none;
    }
    .technology-wrap .tab-con .tab-item{
        text-align: center;
    }
    .technology-wrap .tab-wrap{
        padding-top: 50px;
    }
    .technology-wrap .tab-con{
        width: 100%;
        bottom: 40px;
        position: absolute;
        left: 0;
    }
    .section-relate-news .right a{
        height: 230px;

    }

    .section-relate-news{
        margin-top: .5rem;
    }

    .section-relate-news .right a .date{
        flex-direction: column;
        align-items: flex-start;
    }
    .technology-wrap .tab-con .tab-item p{
        width: 75%;
        margin: 0 auto;
    }
   
}

@media (max-width: 500px) {
    .technology-wrap .tab-title ul li{
        text-align: center;
        margin-top: 10px;
        padding-left: 10px;
        padding-right: 10px;
        font-size: 14px;
        margin-left: 4px;
        margin-right: 4px;
        margin-top: 5px;
    }
    .technology-wrap .tab-title ul li i{
        display: none;
    }
    .technology-wrap .tab-title ul{
        flex-wrap: wrap;
    }

    .swiper-horizontal>.swiper-pagination-bullets, .swiper-pagination-bullets.swiper-pagination-horizontal{
        bottom: 10px;
    }
    .banner .swiper-pagination-bullet{
        width: 8px;
        height: 8px;
    }
    .banner .banner-txt .txt h2{
        font-size: 18px;
    }
    .banner .banner-txt .img{
        width: 54px;
    }
    .banner .banner-txt h3{
        font-size: 14px;
        line-height: 1.2;
        margin-top: 10px;

    }
    .banner .banner-txt .btn-more{
        margin-top: 15px;
    }

    .product-wrap .row a .txt .title{
        font-size: 16px;
    }
    .product-wrap .row a .txt .f-title{
        font-size: 15px;
    }
    .btn-more.green,
    .section-relate-news .left a h2, .section-relate-news a h2,
    .technology-wrap .tab-con .tab-item p,
    .technology-wrap .tab-title ul li,
    .product-wrap .row a .btn-more, .product-wrap .row a .txt .intro{
        font-size: 14px;
    }

    .banner .banner-txt .btn-more{
        width: auto!important;
        height: auto!important;
        padding: 10px 14px;
        line-height: 1.1!important;
        max-width: none;
        display: inline-block;
    }

    .section-relate-news .com-title2{
        margin-bottom: 5px;
    }

    .section-relate-news .right a,
    .section-relate-news .left a{
        display: none;
    }

    .section-relate-news .right a:nth-child(1),
    .section-relate-news .right a:nth-child(2){
        display: flex;
    }
}