.nav0{
    width: 100%;
    height: auto;
    position: fixed;
    z-index: 5;
}
.nav{
    position: relative;
    width: 100%;
    height: 85px;
    background: #fff;
}
.nav .logo{
    width: 104px;
    height: 36px;
    margin-top: 24px;

}
.nav .logo a{
    display: block;
    width: 104px;
    height: 36px;
    background: url(../images/nav/logonew.png) no-repeat center;
    
}
.nav ul{
    display: flex;
    justify-content:flex-end;
    align-itens:center; 
    margin-right: 16%;
}
.nav ul li{
    margin-top:22px;
}
.nav ul li>a{
    display: block;
    width: 84px;
    height: 44px;
    font-size: 16px;
    margin:0 12px;
    line-height: 44px;
    text-align: center;
    transition:all 0.5s ease;
}

.nav ul li.products,.nav ul li.use,.nav ul li.about,.nav ul li.news,.nav ul li.contact{   
    height: 60px;    
}
.nav ul li.products .products-con,.nav ul li.use .use-con,.nav ul li.about .about-con{
    position: absolute;
    top: 0;
    left: 0px;
    width: 100%;
    height:84px;
    background: rgba(0,0,0,.5);
    text-align:center;
    z-index: -10;
    transition:all .5s ease-in;
}
.nav ul li.products ul,.nav ul li.use ul,.nav ul li.about ul,.nav ul li.news ul,.nav ul li.contact ul{
    position: absolute;
    left: 50%;
    top: 0;
    transform:translate(-50%,0);
}
.nav ul li.products ul li,.nav ul li.use ul li,.nav ul li.about ul li,.nav ul li.news ul li,.nav ul li.contact ul li{
    display: inline-block;
}
.nav ul li.products ul a,.nav ul li.use ul a,.nav ul li.about ul a,.nav ul li.news ul a,.nav ul li.contact ul a{
    color: #fff;
    transition:all 0.5s ease;
}

.nav ul li.products:hover .products-con,.nav ul li.use:hover .use-con,.nav ul li.about:hover .about-con,.nav ul li.news:hover .news-con,.nav ul li.contact:hover .contact-con{
    top: 84px;
}
.nav ul li.products ul a:hover,.nav ul li.use ul a:hover,.nav ul li.about ul a:hover,.nav ul li.news ul a:hover,.nav ul li.contact ul a:hover{
    color: #19bc64;
}
.nav ul li.products:hover>a,.nav ul li.use:hover>a,.nav ul li.about:hover>a,.nav ul li.news:hover>a,.nav ul li.contact:hover>a,.nav ul li:hover a{
    color:#19bc64;
} 
.nav .xian{
    width: 76px;
    height: 2px;
    background: #19bc64;
   
}
  

.nav .dianhua img{
    position: absolute;
    top: 10%;
    left: 76%;
    width: 280px;
    height: 60px;
   }
.nav-kuai{
    width: 100%;
    height: 85px;
}
 
/*css nav*/
/*css bottom*/
.bottom{
    width: 100%;
    height: auto;
    background: #202020;
    box-sizing: border-box;
    z-index: -10;
}
.bottom .bottom-text{
    display: flex;
}
.bottom .bottom-text ul{
    width: 164px;
    font-size: 16px;
    color: #e5e5e5;
    padding: 50px 0 13px 0;
}
.bottom .bottom-text ul:nth-child(6){
    width: 2px;
    height: 100px;
    background: #666;
    transform:translate(0,40px);
}
.bottom .bottom-text ul:nth-child(7){
    width: auto;
}
.bottom .bottom-text ul li:nth-child(1){
    margin-bottom: 20px;
}
.bottom .bottom-text ul a{
    display: inline-block;
    font-size: 14px;
    color: #999;
    margin-bottom: 10px;
}
.bottom .bottom-text .lianxi{
    margin-left: 32px;
}
.bottom .bottom-text .lianxi li{
    font-size: 16px;
    color: #ccc;
}
.bottom .bottom-text .lianxi li:nth-child(1){
    color: #e5e5e5;
}
.bottom .bottom-text .lianxi li p{
    display: inline-block;
    width: auto;
    height: 32px;
    line-height: 32px;
    padding-left: 42px;
    margin: 3px 0;
}

.bottom .bottom-end{
    width: 1300px;
    height: 48px;
    border-top:2px solid #666;
    margin: 0 auto;
}
.bottom .bottom-end{
    font-size: 0;
}
.bottom .bottom-end p{
    font-size: 12px;
    color: #999;
    line-height: 48px;
}
.bottom .bottom-end p a{
    font-size: 12px;
    color: #999;
    line-height: 48px;
    margin-left: 16px;
    transition:all 0.5s ease;
}
.bottom .bottom-end p a:hover{

    color: #19bc64;

}

.nav_xian{
    border-bottom: 2px solid #19bc64;
}