/*************头部****************/
#head{
    /*width: 100%;*/
    background-color: #fff;
}
#head nav{
    position:relative;
    top: 0;
    left: 50%;
    margin-left: -640px;
    font-family:PingFang-SC-Regular;
}
#head .skill-banner{
    height: 356px;
    width: 100%;
    background: url("../img/RandDStrength_0004_1.png") no-repeat center center;
    -webkit-background-size: cover;
    background-size:cover;
}
#head .skill-nav2{
    width: 100%;
    height: 174px;
    background:rgba(244,244,244,1);
}
#head .skill-nav2 .skill-list{
    width: 1280px;
    height: 100%;
    margin:0 auto;
    display: flex;
    justify-content: center;
    align-items:center;
}
#head .skill-nav2 .skill-list>li{
    height:33px;
    border: 1px solid transparent;
    box-sizing: border-box;
    background:rgba(255,255,255,1);
    font-size:14px;
    font-family:PingFang-SC-Regular;
    color:rgba(39,39,39,1);
    line-height:30px;
    border-radius:17px;
    padding:0 17px;
    margin-right:60px;
    cursor:pointer;
}
#head .skill-nav2 .skill-list>li:nth-child(2){
    /*margin-left: 60px;*/
    background-color: #00029A;
    color: #fff;
}
#head .skill-nav2 .skill-list>li:last-child{
    margin-right:0;
}
/*************头部****************/


/************技术原理****************/
#theory{
    width: 1180px;
    margin: 0 auto;
    margin-bottom: 160px;
}

#theory .skill-text{
    width:1174px;
    color:rgba(1,1,1,1);
    line-height:16px;
    margin: 0 auto;
    margin-top: 103px;
}
#theory .skill-text>p:first-child{
    text-align: center;
    margin-bottom: 42px;
    font-size:24px;
    font-family:PingFang-SC-Medium;
    color:rgba(1,1,1,1);
    line-height:24px;
}
#theory .skill-text>p:last-child{
    font-size:14px;
    font-family:PingFang-SC-Medium;
    color:rgba(1,1,1,1);
    line-height:24px;
}
#theory .imgs{
    margin-top: 79px;
    display: flex;
    justify-content: center;
}
#theory .imgs>img{
    width: 252px;
    height: 179px;
    margin-right:40px;
    display: block;
}
#theory .imgs>img:last-child{
    margin-right: 0;
}
/************技术原理****************/

/************同济大学实验室****************/
#introduce{
    width:100%;
    height:477px;
    background:rgba(244,244,244,1);
}
#introduce .intro-content{
    width: 1180px;
    margin:0 auto;
    display: flex;
    justify-content: center;
    padding-top: 88px;
}
#introduce .intro-content>img{
    width: 444px;
    height: 284px;
}
#introduce .intro-content> .ps{
    width:701px;
    height:229px;
    margin-top: 34px;
    margin-left: 33px;
    color:rgba(1,1,1,1);
}
#introduce .intro-content> .ps>p:first-child{
    font-size:24px;
    line-height:24px;
    font-family:PingFang-SC-Medium;
    margin-bottom: 46px;
}
#introduce .intro-content> .ps>p:last-child{
    font-size:14px;
    line-height:24px;
    font-family:PingFang-SC-Regular;
}
/************同济大学实验室****************/

/************实验设备****************/
#equipment{
    width: 1180px;
    margin:0 auto;
    margin-top: 103px;
}
#equipment p{
    width:122px;
    height:24px;
    font-size:24px;
    font-family:PingFang-SC-Medium;
    color:rgba(1,1,1,1);
    line-height:24px;
    margin: 0 auto;
    margin-bottom: 63px;
}
#equipment .imgs2{
    width: 100%;
    position:relative;
    height:900px;
}
#equipment .imgs2>li{
    height:260px;
    width:382px;
}
#equipment .imgs2 li img{
     width:382px;
     height:206px;
     display: block;
 }
#equipment .imgs2 li p{
    width:100%;
    display: block;
    height:56px;
    line-height: 56px;
    background:rgba(0,2,154,1);
    font-family:PingFang-SC-Bold;
    color:#fff;
    font-size:19px;
    text-align: center;
}
#equipment .imgs2 li.lang{
    height:540px;
}
#equipment .imgs2 li.lang img{
    height:484px;
}
#equipment .imgs2 li.one{
    position:absolute;
    top:0;
    left:0;
}
#equipment .imgs2 li.two{
    position:absolute;
    top:0;
    left:400px;
}
#equipment .imgs2 li.three{
    position:absolute;
    top:0;
    right:0;
}
#equipment .imgs2 li.four{
    position:absolute;
    top:280px;
    left:0;
}
#equipment .imgs2 li.five{
    position:absolute;
    top:280px;
    left:400px;
}
#equipment .imgs2 li.six{
    position:absolute;
    top:558px;
    left:400px;
}
#equipment .imgs2 li.seven{
    position:absolute;
    top:558px;
    right:0;
}
/************实验设备****************/