@charset "utf-8";
header{
    width:100%;
}
/*................*/
.header{
    padding: 0px 0px 0px;
    width: 100%;
    max-width:1920px;
    transition: all 0.5s;
    -webkit-transition: all 0.5s;
    -moz-transition: all 0.5s;
    -o-transition: all 0.5s;
    z-index: 999;
    position: fixed;
    margin: 0px auto;
}
.header.on{
    background: #fff;
    padding: 0px 0px;
}
.header .logo{
    float: left;
}
.header .logo img{
    width: auto;
    transition: all .5s;
    max-height: 129px;
    padding: 40px 0px;
}
.header.on .logo img{
    width: auto;
    transition: all .5s;
    max-height: 77px;
    padding: 20px 0px;
}
.header .logo img:last-child{
    display: none;
}
.header.on .logo img:last-child{
    display: block;
}
.header.on .logo img:first-child{
    display: none;
}

.header .nav{    
    padding: 0px 0px;
    float: right;
    display: flex;
    align-items: center;
    justify-content: flex-end;
}
.header .nav>ul{
    transition: all .5s;
}
.header .nav>ul>li{
    display: inline-block;
    position: relative;
}
.header .nav>ul>li>a{
    position: relative;
    display: block;
    color: #fff;
    font-size: 1.25rem;
    padding: 40px 1.0rem;
    line-height: 49px;
    white-space: nowrap;
    transition: all 0.3s;
}
.header.on .nav>ul>li>a{   
    color: #181818;
    line-height: 37px;
    padding: 20px 1.0rem;
}
.header .show>ul>li>a{
    color: #181818;
    line-height: 1;
}
@media (max-width: 1440px){
    .header .nav>ul>li>a{
        padding: 40px 0.8rem;
    } 
}
@media (max-width: 1360px){
    .header .nav>ul>li>a{
        padding: 40px 0.7rem;
    } 
}
@media (max-width: 1280px){
    .header .nav>ul>li>a{
        padding: 40px 0.5rem;
    }    
}
.header .nav>ul>li:hover a,.header .nav>ul>li.active a{
    color: #f5aa00;
}

/* 下拉 */
.header .nav>ul>li:hover .submenu{ opacity:1; visibility:visible;display: block;}
.header .nav>ul>li .submenu li:hover a,header .header.on .nav>ul>li .submenu li:hover a {opacity: 0.8;}

.submenu {
    min-width: 240px;
    width: auto;
    background: rgba(255, 255, 255, 0.9);
    left: 50%;
    padding-top: 4px;
    border-radius: 4px;
    position: absolute;
    top: 98%;
    z-index: 100;
    display: none;
    transform: translateX(-50%);
    box-shadow: 0 0 10px 5px rgba(0, 0, 0, 0.1);
}
.submenu::before{
    content: '';
    position: absolute;
    left: 0;top: 0;
    z-index: 101;
    width: 100%;
    height: 4px;
    background: #f5aa00;
    transition: 0.3s all;
    -webkit-transition: 0.3s all;
    -moz-transition: 0.3s all;
    -o-transition: 0.3s all;
    -ms-transition: 0.3s all;
    border-radius: 4px 4px 0px 0px;
}
.submenu .sub-menuimg{
    display: flex;
    justify-content: flex-end;
}
.submenu .sub-menuimg li {
    display: inline-block;
    width: 20%;
    margin: 0px 1%;
    opacity: 0;
    white-space: nowrap;
    -webkit-transition:  -webkit-transform .5s;
    -moz-transition:  -moz-transform .5s;
    -ms-transition:  -ms-transform .5s;
    -o-transition:  -o-transform .5s;
    transition:  transform .5s;
    text-align: center;
}
.header .nav .submenu .sub-menuimg li a{
    font-size: 14px;
    line-height: 35px;
    text-align: center;
    display: block;
    transition: .5s;
}
.submenu .t {
    font-size: 1.375rem;
    font-weight: bold;
    line-height: 35px;
    margin-bottom: 20px;
}
.submenu .sub-menu li {
    display: block;
    opacity: 0;
    white-space: nowrap;
    text-align: center;
}
.header .nav .submenu .sub-menu li a{
    font-weight: normal;
    font-size: 0.875rem;
    line-height: 45px;
    padding: 0px 10px;
    display: block;
    color: #181818;
    border-bottom: 1px solid #e1e4e7;
}
.header .nav .submenu .sub-menu li a:hover{
    color: #f5aa00;
}
.header .nav .submenu .sub-menu li:last-child a{
    border-bottom: none;
}
.header .nav>ul>li:hover .submenu li, .header .nav>ul>li:focus .submenu li {
    opacity: 1;
    -webkit-transform: none;
    -moz-transform: none;
    -ms-transform: none;
    -o-transform: none;
    transform: none;
}
/*分享按钮*/
.header .nav>ul>li.mail a,.header .nav>ul>li.langauge a{
    padding: 20px 0.5rem;
 }
.header .nav>ul li i{  
    margin-right: 5px;
    font-size: 1.25rem;
}
.langauge ul {
    position: absolute;
    display: block;
    right: 0;
    top: calc(100% + 1px);
    opacity: 0;
    visibility: hidden;
    transition: all .5s;
    padding: 10px 10px;
    background-color: #fff;
    border: 1px solid #e5e5e5;
    z-index: 9;
}
#lang_ul li {
    padding: 0px 15px;
    position: relative;
    border-bottom: 1px solid #e5e5e5;
    background-color: #fff;
    color: #2b2b2b;
    font-size: 14px;
}
#lang_ul li a{
    display: block;
    line-height: 45px;
    padding: 0px 5px;
    color: #2b2b2b;
}
#lang_ul li a:hover{
    color: #0078d7;
}
.langauge:hover ul {
    opacity: 1;
    visibility: visible;
}

@media (max-width: 992px){
    .header,.header .on {
        padding: 0px 0px 0px;
    }
    .header .logo img {
        height: 60px;
        padding: 10px 0px;
    }
    .header.on .logo img {
        height: 45px;
        padding: 10px 0px;
    }
    header .nav>ul{
        display: block;
    }
    header .nav{
        position: absolute;
        left:-100%;        
        width:100%;
        height:calc(100vh - 60px);
        background:#fff;
        z-index:999;
        transition: all 0.5s;
        -webkit-transition: all 0.5s;
        -o-transition: all 0.5s;
        padding-top:20px;
        border-top: 1px solid #f8f8f8;
    }
    header .nav.show{
        left:0;
        top: 60px;
        transition: all 0.5s;
        -webkit-transition: all 0.5s;
        -o-transition: all 0.5s;
        align-items: flex-start;
        justify-content: flex-start;
        align-content: flex-start;
    }
    header .nav ul li{
        display: block;
        padding:0 10px;
        width: 100%;
        margin-left: 0px;
    }
    .header .nav ul li a,.header .nav>ul>li.mail a, .header .nav>ul>li.langauge a,.header.on .nav>ul>li>a{
        line-height: 45px;
        display: block;
        color: #2b2b2b;
        font-size: 16px;
        padding: 0px 10px;
        border-bottom: 1px solid #f8f8f8;
    }
    .header .nav>ul.shareicon>li>a,.header .nav>ul.shareicon>li>form{
        padding: 20px 1.0rem;
    }
    .header .nav>ul>li:hover .submenu,.submenu{
        display: none;
    }
 
    ul.shareicon li a .er-box {
        position: relative;       
        width: 100px;
        height: 100px;
        opacity: 1.0;
        padding: 5px;
        margin-left: 25px;
        margin-top: -20px;
    }    
}
/* banner */
.banner{
    position: relative;
    width: 100%;
    background: #020031;
    overflow: hidden;
}
.banner video{
    display: block;
    object-fit: fill;
    width: 100%;
    height: 100vh;
}
.banner .banner-txt{
    width: 100%;
    position: absolute;
    bottom: 15%;
    left: 0%;
    color: #fff;     
    z-index: 9;     
}
.banner .banner-txt h3{ 
  width: 70%;
  line-height: 1.0;
  font-size: 2.1875rem;
  text-transform: uppercase;   
}
.banner .banner-txt h3 span{   
  font-weight: 600;       
  font-size: 3.75rem;
  margin: 0.5rem 0px 2.5rem;   
  display: block;
}
.homeLink{
    position:relative; 
    display: inline-block; 
    font-size: 1.25rem;
    font-weight: bold;
    text-align: center;
    border-radius: 3.0rem;
    padding: 1.2rem 3.0rem;
    overflow:hidden; 
    color:#fff; 
    background:#f5aa00;
    transition: all 0.3s ease-in-out;
}
.homeLink:hover{ padding: 1.2rem 3.2rem;color:#fff;}
@media(max-width:1299px){
    .banner .banner-txt h3{
        font-size: 1.35rem;
    }
    .banner .banner-txt h3 span{
        font-size: 2.65rem;
    }
}
@media(max-width:991px){    
  .banner .banner-txt h3{
    font-size: 1.0rem;
    width: 100%;
  }  
  .banner .banner-txt h3 span{ 
    font-size: 1.5rem;
    width: 100%;
    margin: 0.5rem 0px 1.0rem;
  }
  .homeLink{    
    font-size: 1.0rem;    
    padding: 0.6rem 2.0rem;
}
.homeLink:hover{ padding: 0.6rem 2.5rem;}     
}
@media(max-width:768px){
    .banner .banner-txt h3 {
        font-size: 1.125rem;
    }
    .banner .banner-txt h3 span{
        font-size: 1.5rem;
        width: 100%;
    } 
}
.common{
    padding-top: 6rem;
    padding-bottom: 6rem;
}
.commonT{
    padding-top: 5rem;
}
.commonB{
    padding-bottom: 3.5rem;
}
.title{
    font-size: 3.125rem;
    letter-spacing: -0.2rem;
    line-height: 1.125;
    font-weight: 600;
    margin-bottom: 1.5rem;
    position: relative;
    text-transform: uppercase;
}
.title span{
    display: block;
    letter-spacing: -0.01rem;
    color: #f5aa00;
    font-size: 1.5rem;    
}
.com-txt{
    font-size: 1.125rem;
    margin-bottom: 3.5rem;
}
.more-link{ 
    text-transform: uppercase;   
    font-size: 1.25rem;    
    color: #f5aa00;
    display: inline-block;
}
.more-link img{
    margin-left: 0.5rem;
}
@media (max-width: 1360px) {
  .title{
    font-size: 2.0rem;
  }  
}
@media (max-width: 1280px) {
  .title{
    font-size: 1.75rem;
  } 
  .title p{
    font-size: 1.25rem;
  } 
}
@media (max-width:992px){
    .common{
       padding-top: 2rem;
       padding-bottom: 2rem;
    }
    .commonT{
        padding-top: 1.5rem;
    }
    .commonB{
        padding-bottom: 1.5rem;
    }
    .title{
        font-size: 1.5rem;
        letter-spacing: 0rem;
        margin-bottom: 1.5rem;
    }
    .title span{
        font-size: 1.125rem;
    }
    .more-link{
        white-space: nowrap;
        font-size: 0.875rem;
        margin-bottom: 1.5rem; 
    }
    .more-link img{
        width: 30px;
    }
    .com-txt{
        margin-bottom: 1.5rem;
    }      
}
/*首页关于我们*/
.about{
    position: relative;
    background: #fff;
    overflow: hidden;
}
.about .about-img{
    overflow: hidden;
    position: relative;
    border-radius: 0.5rem;
}
.about .about-img img{
    width: 100%;
    transition: all 0.5s;
}
.about .about-img:hover img{
    transform: scale(1.1);
}
@media (max-width: 992px){
    .about .about-txt{
        font-size: 1.0rem;
    }   
}
.product{
 background-color: #f2f2f2;
 overflow: hidden;
}
.product .ny-title{
    margin-bottom: 0;
}
.swiper-box{ 
    position: relative;
}
.product .swiper-button-prev,
.news .swiper-button-prev{
    left: -30px;
}
.product .swiper-button-next,
.news .swiper-button-next{
    right: -30px;
}
.product .swiper-button-prev, .product .swiper-button-next,
.news .swiper-button-prev, .news .swiper-button-next {    
    background: #fff;
    box-shadow: 2px 7px 30px 10px rgba(0,0,0,0.2);
    width: 60px;
    color: #b9b9b9;
    text-align: center;
    height: 60px;
    line-height: 60px;
    border-radius: 50%;
    margin-top: -30px
}
.product .swiper-button-prev i, .product .swiper-button-next i,
.news .swiper-button-prev i, .news .swiper-button-next i{
   font-size: 30px;
}
.product .swiper-button-prev:hover, .product .swiper-button-next:hover,
.news .swiper-button-prev:hover, .news .swiper-button-next:hover{
    background: #f5aa00;
    color: #fff;
}
@media (max-width:992px) {
    .product .swiper-button-prev,
    .news .swiper-button-prev{
        left: -10px;
    }
    .product .swiper-button-next,
    .news .swiper-button-next{
        right: -10px;
    }
    .product .swiper-button-prev, .product .swiper-button-next,
    .news .swiper-button-prev, .news .swiper-button-next {         
        width: 40px;       
        height: 40px;
        line-height: 40px;       
        margin-top: -20px
    }
    .product .swiper-button-prev i, .product .swiper-button-next i,
    .news .swiper-button-prev i, .news .swiper-button-next i{
        font-size: 30px;
    }
}
/*产品分类*/
.product-serie{
    border-bottom: 0px solid #eeeeee;
}
.ny-nav.product-serie ul{
    padding: 0rem 0px 2.5rem;
}
.product-serie ul li a{
    background-color: transparent;
}

@media (max-width:992px){  
    .product-serie ul li a{
        font-size: 1.125rem;
    }        
}

.ny-case .case-list h5{
    position: absolute;   
    color: #fff;
    width: 100%;
    bottom: 0;
    font-size: 1.5rem;
    font-weight: bold;
    padding: 2.0rem 2.5rem;
}

@media (max-width: 992px){
   .ny-case .case-list h5{
    font-size: 1.25rem;
    padding: 1.0rem 1.5rem;
  }  
}
/* 选择 */
.challenges{
    background:url('../img/challenges.jpg') no-repeat center;
    background-size: 100% 100%;
    position: relative;
    color: #fff;
}
.challenges:before{
    content: '';
    background-color: rgba(245,170,0,0.9);    
    width: 50%;
    height: 100%;
    position: absolute;
    top: 0;
    left: 0; 
    z-index: 0;   
}
.challenges .homeLink{
    color: #f5aa00;
    background: #fff;
}
.challenges ul{
    width: 90%;
    margin-bottom: 2.5rem;
}
.challenges ul li{
    position: relative;   
    font-size: 1.125rem;
    padding: 0.8rem 0rem;
    border-bottom: 1px solid #fff; 
    z-index: 2;   
}
@media (max-width: 992px){    
    .challenges:before,.challenges ul{
        width: 100%;
    }
    .challenges ul li{
        width: 100%;
        padding: 0.5rem 0rem;
    }    
}
/* 新闻 */
.news {
   background-color: #f7f7f7;
   overflow: hidden;
}
.news .news-item{
    background: #fff;
    padding: 1.5rem;
    overflow: hidden;
}
.news .news-item .news-img {
    width: 45%;
    height: 200px;
    overflow: hidden;    
}
.news .news-item .news-img img {
    width: 100%;    
}
.news .news-item .news-info{
    width: 55%;
    padding: 1.5rem;
}
.news .news-item .news-info h5{
    font-size: 1.125rem;
     overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    font-weight: bold;
}
.news .news-item .news-info h5 span{
    color: #ffd739;
    display: block;
}
.news .news-item .news-intro {
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: normal;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    margin: 0.5rem 0.0rem;
}
.news .news-item .news-info .more-link img{
    height: 28px;
    font-size: 0.875rem;
}