*{
    margin: 0;
    padding: 0;
}
a{
    text-decoration: none;
    color: #333333;
}
.fl{
    float: left;
}
.fr{
    float: right;
}
ul{
    list-style: none;
}
li{
    list-style: none;
}
.clear{
    clear: both;
}
.center{
    width: 1200px;
    margin: 0 auto;
}

.bg {
    background: url(bg.jpg) center top no-repeat;
    height: 3100px;
}
.bg .ztTitle{
    font-size: 60px;
}

/*工作背景*/
.gzbj {
    width: 100%;
    height: 450px;
    background: url(gzbg.png) no-repeat;
    background-size: 1200px 450px;
    padding: 20px ;
    box-sizing: border-box;
}
.gzbj .gzbjContent{
    padding: 10px;
    overflow-y: scroll;
    height: 330px;
    margin-top: 55px;
}
.gzbj img {
    max-width: 100%;
}

.zctz{
    margin-top: 100px;
    width: 100%;
    height: 501px;
    background: url(zctz.png) no-repeat;
    background-size: 1200px 501px;
}
.zctz ul{
    padding: 100px 20px 0 30px;
}
.zctz ul li{
    height: 55px;
    line-height: 55px;
}
.zctz ul li a{
    font-size: 18px;
}
.zctz ul li span{
    float: right;
}

/*工作进展、工作成果*/
.jzcg{
    padding-top: 100px;
}
.gzjz{
    width: 580px;
    height: 487px;
    background: url(gzjz.png) no-repeat;
    float: left;
}
.gzcg{
    width: 580px;
    height: 487px;
    background: url(gzcg.png) no-repeat;
    float: right;
}
.jzcg ul{
    margin-top: 80px;
    padding: 0 15px;
}
.jzcg ul li{
    height: 55px;
    line-height: 55px;
}
.jzcg ul li a{
    font-size: 18px;
}

/*服务*/
.fw{
    width: 100%;
    height: 537px;
    background: url(fw.png) no-repeat;
    margin-top: 100px;
}
.fw ul{
    padding: 100px 30px 0 30px;
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
}
.fw ul li{
    width: 360px;
    height: 180px;
    line-height: 180px;
    text-align: center;
    display: block;
    margin-bottom: 30px;
    font-size: 26px;
}
.fw ul li a{
    color: #fff;
}

.externalLinks{
    margin-top: 80px;
}
.externalLinks img{
    width: 580px;
    border-radius: 15px;
}