/*导航样式*/
body{
    min-width: 1200px!important;
}
.top{
    height: 72px;
}
.nav_box{
    position: absolute !important;
    min-width: 1200px;  
    height: 72px !important;
}
.nav{
    margin: auto !important;
    background-color: #fff;
}
.dl-nav{
    position: absolute !important;
    top: 72px !important;
}
section{
    width: 100%;
    overflow: hidden;
}
.bnn a {
    display: block;
    text-decoration: none;
    color: #fff;
}

.p-tr {
    bottom: 150px;
    opacity: 1;
}

.box2 {
    width: 100%;
    position: absolute;
    bottom: 50px;
    left: 50%;
    transform: translateX(-50%);
    z-index: 9999;
}

.u2 {
    transform: translateX(-5px);
    margin: auto;
    width: 81px;
    height: 18px;
}
.u2>li {
    width: 16px;
    height: 16px;
    float: left;
    margin-left: 10px;
    cursor: pointer;   
}
.u2>li:first{
    margin-left: 0;
}
.p0 {
    stroke: rgba(255, 255, 255, 0.2);
    stroke-width: 10px;
    fill-opacity: 0;
}

.p1 {
    stroke: rgba(255, 255, 255, 1);
    stroke-width: 10px;
    fill-opacity: 0;
    stroke-dasharray: 282.783 282.783;
    stroke-dashoffset: 282.783;
}
.tx1,.tx2,.lin1,.lin2{
    stroke-dasharray: 385 385;
    stroke-dashoffset: 385;
}
.tx1,.tx2{
    fill-opacity: 0;
    font-size: 30px;
}
.tx1{
    animation: stroke  3s linear 0s infinite ;
}
.tx2{
    animation: stroke 3s linear 1.5s infinite ;
}
.lin1,.lin2{
    fill-opacity: 1;
}
.lin1{
    animation: stroke  3s infinite ease-out;
}
.lin2{
    animation: stroke 3s ease-out 1s  infinite ;
}

.go {
    animation: stroke 5.7s infinite ease-out;
}

.p2 {
    stroke: rgba(255, 255, 255, 1);
    stroke-width: 10px;
    fill-opacity: 0;
    stroke-dasharray: 282.783 282.783;
    stroke-dashoffset: 0;
}

@keyframes stroke {
    100% {
        stroke-dashoffset: 0;
    }
}

path {
    fill: none;
}

.slider {
    width: 100%;
    height: auto;
}

.bg-box {
    width: 100%;
    height:520px;
    background-color: #000;
    background-image: url(../../img/yf/ban-1.jpg);
    background-position: center top;
    background-repeat: no-repeat;
    position: relative;
    background-size:100% 100%;
}
.bnn {
    display: block;
    color: #fff;
    text-align: center;
    box-sizing: border-box;
    width: 1000px;
    height: 520px;
    position: absolute;
    top: 30px;
    left: 50%;
    transform: translateX(-50%);
    
}

/*动画*/
.con-dis {
    display: none;
}

.hide {
    opacity: 0;
    transition: all 0.05s ease-out 0.05s;
}
.h2-go{
    top:25px !important;
}
.p-go {
    bottom: 360px !important;
}
.p1-go{
    bottom: 315px !important;
}
.bn3-p_go{
    bottom: 280px !important;
}
.a-go {
    bottom: 250px !important;
}
.img-go {
    bottom: 200px !important;
}
.all-tran {
    opacity: 1;
    transition: bottom 1s;
    transition: all .31s cubic-bezier(0, 0, 0.33, 1.02) 0.25s;
}

.conten {
    margin: auto;
    width: 1000px;
    height: 100%;
    position: absolute;
    top: 0px;
    left: 50%;
    transform: translateX(-50%);
}
.bnn-2 .conten{
   width: 800px;
}

.bnn-2 .ban2-img{
    right: 20px;
}

.bn1-p {
    font-size: 48px;
    text-align: center;
    position: absolute;
    bottom: 370px;
    left: 50px;
}
.bn-p{
    width: 340px;
    font-size: 14px;
    position: absolute;
    bottom: 300px;
    left: 50px;
}
.bnn-3{
    /*width: 800px;*/
    /*left: 222px;*/
}
    

.bn-h2{
    width: 100%;
    font-size: 44px;
    position: absolute;
    top: 70px;
    text-align: center;
}
.bnn-2 .bn1-p{
    width: 100%;
    text-align: center;
    bottom: 340px;
    left: 0;
}

.bnn-2 .bn1-a{
    bottom: 300px;
    left: 340px;
}
.bn1-a:hover{
    transition: none;   
    background-color: #fff;
    color: #333;
}

.bn1-a {
    width: 120px;
    height: 40px;
    border: 1px solid #fff;
    text-align: center;
    line-height: 40px;
    position: absolute;
    left: 60px;
    bottom: 200px;
}

.bn1-img {
    width: 300px;
    position: absolute;
    right: 20px;
    bottom: 160px;
}

.bn1-img>img {
    width: 100%;
}
.ban2-img{  
     width: 700px;
     right: 100px;
}
.ac-show {
    display: block;
    opacity: 1;
    z-index: 1;
}

.ac-hide {
    display: none;
    opacity: 0;
    z-index: 0;
}

.p-hide {

    bottom: 200px;
}

.all-show {
    opacity: 1;
    z-index: 1;
}

.all-hide {
    opacity: 0;
    z-index: 0;
}
/*中部导航*/
.nav_center{    
    position: relative;
    width: 100%;
    max-height: 120px;
    background-color: rgba(0,0,0,.9);
    border-bottom:1px solid #aaa;
    padding-top: 5px;
}
.nav_fixd{
    position: fixed;
    top: 0;
    left: 0;
    z-index: 999;
}
.nav_h2{
    display: none;
    width: 1200px;
    margin: auto;
    color: #fff;
    
}
.yf_h2{
    font-size: 30px;
    font-weight: normal;
    text-align: center;
    
}
.nav_cen_ul{
    width: 1200px;
    margin: auto;
}
.nav_item{
    box-sizing: border-box;
    float: left;
    line-height: 40px;
    text-align: center;
    width: 20%;
    color: #fff;
    padding: 0 20px;
    font-size: 14px;
}
.nav_cen_ul li:hover{
    color: #204da2;
}
.nav_cen_ul li{
    font-size: 19px;
}
.nav_item_active{
    color: #204da2 !important;
}
.center{
    min-width: 1200px;
}
.yf_gd{
    margin: auto;
    width: 1200px;
    position: relative;
}
.nav_center [data-label]{
    position: absolute;
    bottom: 0px;
    left: 97px;
    width: 40px;
    height: 2px;
    background-color: #204da2;
    transition: all .2s;
}

/*改变背景*/
.nav_change{
    background-color: #fff;
}
.nav_item_color{
    color: #333;
}
/*中部*/

.purpose{
    width: 1200px;  
    margin: 20px auto;
    padding-top:80px ;
}

.purpose>p:nth-child(2){
   text-indent: 2rem;
   color: #333;
   font-size: 17px;
   margin-top: 20px;
   margin-left: 130px;
   line-height:  30px;
   transform: translateX(-55px);
}

/*大图*/

.service{
    margin-top: 30px;   
    width: 100%;
    height: 650px;
    background-size: 100%;  
    padding-top: 40px;
    background: url(../../img/yf/ser-bg.jpg) no-repeat;
    -webkit-background-size: 100% 100%;
    background-size: 100% 100%;
}
.ser_box{
    position: relative;
}
.ser_canvas{
    box-sizing: border-box;
    width: 100%;
    padding-top: 530px;
    position: relative;
}
#canvas{
    display: block;
    margin: auto;
}
.ser_tex{
    width: 100%;
    height: 550px;
    position: absolute;
    left: 0;
    top: 0;
}
.ser_tex .yf_h2{
    color: #fff;
}
.ser_tex svg{
    display: block;
    width: 1200px;
    height: 40px;
    margin:20px auto 10px auto;

}
#tex{
    font-size: 30px;
}
.yf_p{
    text-align: center;
    color: #fff;
}
.tab_ul{    
    position: absolute;
    left: 0;
    top: 80px;
    width: 100%;
}
.tab_ul ul{
    box-sizing: border-box; 
    margin: auto;
    width: 900px;
    color:#fff;
    text-align: center;
}
.tab_ul ul li{
    box-sizing: border-box;
    padding: 15px 0;
    float: left;
    width: 33%;
    height: 150px;
    margin-top: 50px;
    /*cursor: pointer;  */
}
.tab_ul ul li:hover .yf_icon{
    color: #33cde5;
}
.tab_ul .yf_tit{
    font-size: 20px;
}
.yf_icon{
    font-size: 40px !important; 
    transition: all .3s;
}

.yf_icon+p{
    margin: 15px 0;
}
.sp_item{
    display: inline-block;
    padding: 0 5px;
}
.yf_line{
    display: inline-block;
    width: 2px;
    height: 13px;
    background-color: #fff;
}

/*案例*/
.box-case{
    padding-top: 40px;
    min-width: 1200px;
    /*background-color: #f0f0f0;*/
}
.box-case .ser_tex{
    height: 100px;
    background-color: #fff;
    position: relative;
}
.box-case .ser_tex .yf_p{
    color: #333;
}
.case>p:nth-of-type(2){
    left: 525px;
    transform: none;
}
.box-case{
    height: 540px;
}
.case{
    height: 160px;
}
.box-case>.c-ul{
    width:100%;
    border-top: 1px solid lightblue;
    border-bottom: 1px solid lightblue;

}
.box-case>.c-ul>ul{
    width: 1200px;
    margin: auto;
    cursor: pointer;
}
.box-case>.c-ul>ul>li{
    width:20%;
    height: 45px;
    text-align: center;
    line-height: 45px;
    font-size: 18px;
    color: #666;
    float: left;
    position: relative; 
}
.li_sty{
    background-color:#333;
    color:#fff !important;
}

.triangle{
    width: 0px;
    height: 0px;
    border-bottom:none;
    border-right: 10px solid transparent;
    border-top: 10px solid #333;
    border-left: 10px solid transparent;
    display: none;
    position: absolute;
    top:45px;
    left:50%;
    transform: translateX(-50%);    
}
.tri_show{
    display: block;
}
.cla_box{
    width: 100%;
    height: 350px;
    overflow: hidden;

}
.intrduce{
    width: 1090px;
    height: 300px;
    border: 1px solid #aaa;
    margin:40px auto;
    overflow: hidden;
}
.intrduce>div{
    width: 100%;
    height: 100%;
}
.intrduce>.i-p{
    box-sizing: border-box;
    padding: 20px;  
}
.in_text .yf_h2{
    font-size: 20px;
    
}
.in_tex1,.in_tex2{
    margin-top: 20px;
}
.in_text .in_p{
    color: #666;    
    padding: 0 30px;
}
:target{
    display: block;
}
/*开发流程*/

.box-develop{
    padding-top: 40px;  
    width: 100%;
    height: 540px;
    background: url(../../img/yf/lc.jpg) no-repeat;
    background-size: 100%;
}

.box-develop .ser_tex,.box-development .ser_tex,.good .ser_tex{
    height: 100px;
    background-color: transparent;
    position: relative;
}

/*研发标准*/
.box-development{
    padding-top: 50px;
    /*height: 600px;*/  
    background-color: #fff;
    
}
.box-development .yf_p{
    color: #333;
}
.bz_box{
    width: 100%;
    height: 580px;
}
.bz_list{
    margin: auto;
    width: 1200px;
    height: 100%;
    background: url(../../img/yf/biaozhun.jpg) no-repeat;
    -webkit-background-size: 100% auto;
    background-size: 100% auto;
}

/*电联优势*/
.box-good{
    padding-top: 50px;
    height: 800px;
    background-color: #f2f2f2;
}

.good .yf_p{
    color: #333;
}
.goods{ 
    margin:20px auto;
    width: 1200px;
    height: 660px;
    position: relative;
}

.img_box{
    width: 666px;
    height: 536px;
    position: absolute;
    left: 50%;
    margin-left: -333px;
}
.imgs_g img{
    position: absolute;
    left: 50%;
}

.imgs_g img:nth-child(1){
    margin-left: -177px;
    top: 90px;
    z-index: 66;
    border-radius: 50%;
    transition: all 1.5s;
}
.imgs_g img:nth-child(2){
    margin-left:-266px ;
    top: 0;
    z-index: 55;
}
.imgs_g img:nth-child(3){
    margin-left: -262px; 
    top: 52px;
    z-index: 0;
}
.imgs_g img:nth-child(4){
    margin-left: -333px; 
    top: 256px;
}
.imgs_g img:nth-child(5){
    margin-left: -250px; 
    top: 456px;
    z-index: 0;
}
.imgs_g img:nth-child(6){
    margin-left: 200px; 
    top: 52px;
    z-index: 0;
}
.imgs_g img:nth-child(7){
    margin-left: 268px; 
    top: 256px;
    z-index: 0;
}
.imgs_g img:nth-child(8){
    margin-left: 188px; 
    top: 456px;
    z-index: 0;
}
.imgs_box:hover .cri_img{
    transform: scale(.86);
}
.good_text{
    width: 200px;
    height: 80px;
    position: absolute;
}
.good_name{
    top: 200px;
    left: 50%;
    z-index: 99;
    margin-left: -100px;
}
.good_name1{
    font-size: 25px;
    font-weight: bold;
    text-align: center;
}
.good_name2{
    margin-top:30px ;
    font-size: 22px;
    font-weight: bold;
    text-align: center;
}
.good_p1{
    font-size: 20px;
    color: #333;
    font-weight: bold;
}
.good_p2{
    margin-top: 10px;
    font-size: 14px;
    color: #666;
}
.good_1{
    top: 25px;
    left: 120px;        
    
}
.good_2{
    top: 245px;
    left: 50px; 
}
.good_3{
    top: 453px;
    left: 170px;    
}
.good_4{
    top: 25px;
    right: 110px;
}
.good_5{
    top: 245px;
    right: 40px;    
}
.good_6{
    top: 453px;
    right: 110px;   
}