body{
    min-width: 1450px;
}
@-webkit-keyframes fadeIn {
    0% {
    opacity: 0; /*初始状态 透明度为0*/
    }
  
    50% {
    opacity: 0.5; /*中间状态 透明度为0*/
    }
    75% {
    opacity: 0.75; /*中间状态 透明度为0*/
    }
    100% {
    opacity: 1; /*结尾状态 透明度为1*/
    }
}
.top-map{
    width: 100%;
    height: 665px;
    background: url(../images/bg_item4.png);
    background-size:100% 100%;
    text-align: center;
    padding-top: 200px;
    z-index: -1;
}
.top-map h1{
    font-size:30px;
    font-weight:600;
    color:rgba(255,255,255,1);
    line-height:42px;
    margin-bottom: 41px;
    -webkit-animation-name: fadeIn; /*动画名称*/
    -webkit-animation-duration: 4s; /*动画持续时间*/
    -webkit-animation-iteration-count: 1; /*动画次数*/
    -webkit-animation-delay: 1s; /*延迟时间*/
}
.top-map p{
    width:1276px;
    height:176px;
    font-size:18px;
    font-weight:400;
    color:rgba(255,255,255,1);
    line-height:44px;
    margin: 0 auto;
    -webkit-animation-name: fadeIn; /*动画名称*/
    -webkit-animation-duration: 4s; /*动画持续时间*/
    -webkit-animation-iteration-count: 1; /*动画次数*/
    -webkit-animation-delay: 1s; /*延迟时间*/
}
.top-map div{
    margin: auto;
    width:210px;
    height:44px;
    font-size:18px;
    font-weight:400;
    color:rgba(255,255,255,1);
    line-height:44px;
    margin-top: 78px;
    border:2px solid #f2f2f2;

}
.em-navigation{
    width: 1340px;
    text-align: center;
    overflow: hidden;
    margin: auto;
    margin-top: -42px;
}
.em-navigation li{
    width: 266px;
    height: 82px;
    float: left;
    font-size:18px;
    font-weight:400;
    color:rgba(0,0,0,1);
    line-height:82px;
    background-color: #ffffff;
    margin-left: 1px;
    opacity: 0.9;
}

.em-content-bg{
    width: 100%;
}
.bg-grey{
    background-color: #f8f8f8;
}
.em-content{
    text-align: center;
    padding-top: 100px;
}
.em-content h2{
    font-size:42px;
    font-weight:600;
    color:rgba(13,37,62,1); 
    line-height:42px;
    margin-bottom:36px;
    
}
.em-content p{
    width:1116px;
    margin: 0 auto;
    margin-bottom: 80px;
    height:68px;
    font-size:18px;
    font-family:PingFangSC-Regular;
    font-weight:400;
    color:rgba(102,102,102,1);
    line-height:34px;
}
.em-navigation-click{
    background-color: #008eff !important;
    color: #fff !important;
}