body {
    font-size: 16px;
    font-family: 微软雅黑;
    color: #333;
    box-sizing: border-box;
    background: #fff;
}
a:hover, a:focus{
    transition: none;
}
*,
*:after,
*:before {
    -webkit-box-sizing: border-box;
    -moz-box-sizing: border-box;
    box-sizing: border-box
}
a{
    color: #333;
}
.clearfix:before,
.clearfix:after {
    content: '';
    display: table
}
.clearfix:after {
    clear: both
}
input:focus{
    outline: none;
}


/**主要内容**/
.xsxh_cont{
    width: 100%;
}
.xsxh_top1_box{
    width: 100%;
    background: url("../image/kczg_bg.jpg") top center no-repeat;
    background-size: cover;
    padding-bottom: 60px;
}
.xsxh_top1{
    width: 1440px;
    padding-top: 30px;
    margin: 0 auto;
}
.kxjsxh_pdy_lan_tit{
    width: 100%;
    height: 28px;
    position: relative;
}
.kxjsxh_pdy_lan_tit:after{
    content: "";
    width: 1164px;
    height: 1px;
    background: #fff;
    position: absolute;
    left: 172px;
    top: 13px;
}
.kxjsxh_pdy_lan_tit span{
    position: absolute;
    left: 0;
    top: 0;
    line-height: 28px;
    font-weight: 600;
    font-size: 28px;
    padding-right: 60px;
}
.kxjsxh_pdy_lan_tit a{
    position: absolute;
    right: 0;
    top: 0;
    line-height: 28px;
    font-size:18px;
    padding-right: 38px;
    color: #004FDF;
    background: url("../image/more_icon_lan.png") right center no-repeat;
}
.kxjsxh_pdy_lan_tit a:hover{
    color: #004FDF;
}

/*图片新闻+列表*/
.tpxw_list_box{
    width: 100%;
    display: flex;
    justify-content: space-between;
    margin-top: 30px;
}
.tpxw{
    width: 720px;
    height: 440px;
}
.tpxw img{
    width: 100%;
    height: 100%;
    object-fit: cover;
}
.list_box{
    width: 720px;
    height: 440px;
    padding: 30px;
    background: #fff;
    box-shadow: #aaaaaa2b 1px 1px;
}
.list_box li{
    width: 100%;
    height: 85px;
    margin-bottom: 20px;
    border-bottom: 1px solid #eee;
}
.list_box li a:hover{
    color: #333;
}

.list_box li span{
    float: left;
}
.list_box li span:nth-child(1){
    padding: 0 16px 0 12px;
    border: 1px solid #004FDF;
    border-radius: 0 16px 16px 0;
    line-height: 30px;
    margin-right: 50%;
    color: #004FDF;
}
.list_box li span:nth-child(2){
    margin-top: 10px;
    width: 80%;
    line-height: 24px;
    overflow: hidden;
    white-space: nowrap;
    text-overflow: ellipsis;
    font-size: 18px;
}
.list_box li a:hover span:nth-child(2){
    color: #004FDF;
}
.list_box li span:nth-child(3){
    margin-top: 10px;
    width: 20%;
    line-height: 24px;
    color: #999;
    text-align: right;
}
.list_box li:last-child{
    margin-bottom: 0;
    height: 64px;
    border-bottom: none;
}



/*第二部分*/
.xsxh_top2_box{
    width: 100%;
    height: 418px;
    background: url("../image/kjstzzjszn_bg.png") top center no-repeat;
    background-size: cover;
    padding: 60px 0;
}
.xsxh_top2{
    width: 1440px;
    margin: 0 auto;
}
.kxjsxh_pdy_bai_tit{
    width: 100%;
    height: 28px;
    position: relative;
    margin-bottom: 30px;
}
.kxjsxh_pdy_bai_tit:after{
    content: "";
    width: 980px;
    height: 1px;
    background: rgba(255, 255, 255, 0.2);
    position: absolute;
    left: 340px;
    top: 13px;

}
.kxjsxh_pdy_bai_tit span{
    position: absolute;
    left: 0;
    top: 0;
    line-height: 28px;
    font-weight: 600;
    font-size: 28px;
    padding-right: 60px;
    color: #fff;
}
.kxjsxh_pdy_bai_tit a{
    position: absolute;
    right: 0;
    top: 0;
    line-height: 28px;
    font-size:18px;
    padding-right: 38px;
    color: #fff;
    background: url("../image/more_icon_bai.png") right center no-repeat;
}
.kxjsxh_pdy_bai_tit a:hover{
    color: #fff;
}
/*科技社团组织建设指南*/
.jszn_list{
    display: flex;
    justify-content: space-between;
    margin-top: 20px;
}
.jszn_list li{
    width: 460px;
    height: 240px;
    padding: 30px;
    background: rgba(37, 137, 250, 0.75);
    position: relative;
}
.jszn_list li a{
    display: block;
    width: 100%;
    height: 100%;
}
.jszn_list li a span {
    display: block;

}
.jszn_list li a span:nth-child(1){
    width: 50px;
    height: 55px;
}
.jszn_list li a span:nth-child(2){
    line-height: 40px;
    width: 100%;
    font-size: 26px;
    font-weight: 600;
    margin-top: 23px;
    color: #fff;
    overflow: hidden;
    white-space: nowrap;
    text-overflow: ellipsis;

}
.jszn_list li a span:nth-child(3){
    margin-top: 37px;
    width: 24px;
    height: 24px;
    background: url("../image/jt_icon.png") center no-repeat;
}
.jszn_list li:nth-child(1) a span:nth-child(1){
    background: url("../image/xclywzgxh_icon.png") left center no-repeat;
}
.jszn_list li:nth-child(2) a span:nth-child(1){
    background: url("../image/jrtthy_icon.png") left center no-repeat;
}
.jszn_list li:nth-child(3) a span:nth-child(1){
    background: url("../image/sjxhhj_icon.png") left center no-repeat;
}
.jszn_list li:nth-child(4) a span:nth-child(1){
    background: url("../image/jztz_icon.png") left center no-repeat;
}

/*第三部分*/
.xsxh_top3_box{
    width: 100%;
    padding: 60px 0;
}
.xsxh_top3{
    width: 1440px;
    margin: 0 auto;
}
.xsxh_top3 .kxjsxh_pdy_lan_tit:after{
    content: "";
    width: 1164px;
    height: 1px;
    background: #BACDFF;
    position: absolute;
    left: 172px;
    top: 13px;
}
.gzjl_hf{
    width: 100%;
    height: 160px;
    margin-top: 30px;
}
.gzjl_hf a img{
    height: 100%;
    width: 100%;
    object-fit: cover;
}
/*第四部分*/
.xsxh_top4_box{
    width: 100%;
    padding: 0 0 60px;
    background: #EFF1F5;
}
.xsxh_top4{
    width: 1440px;
    margin: 0 auto;
}
.xsxh_top4 .kxjsxh_pdy_lan_tit:after{
    content: "";
    width: 1164px;
    height: 1px;
    background: #BACDFF;
    position: absolute;
    left: 172px;
    top: 13px;
}
.xsjl_box{
    width: 100%;
    margin-top: 30px;
}
.xsjl_tab{
    width: 100%;
    display: flex;
    margin-bottom: 30px;
}
.xsjl_tab li{
    width: auto;
    height: 50px;
    margin-right: 20px;
}
.xsjl_tab li a{
    display: block;
    width: 100%;
    line-height: 50px;
    text-align: center;
    font-size: 20px;
    background: #fff;
    border-radius: 4px;
    padding: 0 30px;
}
.xsjl_tab li.hover a{
    background: #004FDF;
    color: #fff;
}
.xsjl_tab_list_box{
    width: 100%;
}
.xsjl_tab_list_box>div{
    display: none;
}
.xsjl_tab_list_box>div.active{
    display: block;
}
.xsjl_tab_list_box>div ul{
    display: flex;
    justify-content: space-between;
}
.xsjl_tab_list_box>div ul li{
    width: 690px;
    display: flex;
    justify-content: space-between;
}
.xsjl_tab_list_box>div ul li a:first-child{
    width: 270px;
    height: 180px;
}
.xsjl_tab_list_box>div ul li a:first-child img{
    width: 100%;
    height: 100%;
    object-fit: cover;
}
.xsjl_tab_list_box>div ul li a:last-child{
    width: 400px;
    height: 180px;
}
.xsjl_tab_list_box>div ul li a:last-child:hover{
    color: #333;
}
.xsjl_tab_list_box>div ul li a:last-child span:nth-child(1){
    display: block;
    margin-top: 20px;
    margin-bottom: 10px;
    font-size: 18px;
    font-weight: 500;
    line-height: 24px;
    overflow: hidden;
    text-overflow: ellipsis;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
}
.xsjl_tab_list_box>div ul li a:last-child:hover span:nth-child(1){
    color: #004FDF;
}
.xsjl_tab_list_box>div ul li a:last-child span:nth-child(2){
    display: block;
    line-height: 22px;
    color: #666;
    overflow: hidden;
    text-overflow: ellipsis;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
}
.xsjl_tab_list_box>div ul li a:last-child span:nth-child(3){
    display: block;
    margin-top: 20px;
    color: #999;
    padding-left: 24px;
    background: url("../image/time_icon_lan.png") left center no-repeat;
}