body, div, dl, dt, dd, ul, ol, li, h1, h2, h3, h4, h5, h6, pre, code, form, fieldset, legend, input, button, textarea, p, blockquote, th, td { margin:0; padding:0; }
fieldset, img { border:0; }
:focus { outline:0; }
address, caption, cite, code, dfn, em, th, var, optgroup { font-style:normal; font-weight:400; }
abbr, acronym { border:0; font-variant:normal; }
ol, ul { list-style:none; }
table { border-collapse:collapse; border-spacing:0; margin:0 auto; }
caption, th { text-align:left; }
sup, sub { font-size:100%; vertical-align:baseline; }
blockquote, q { quotes:none; }
blockquote:before, blockquote:after, q:before, q:after { content:none; }
.clear { clear:both; }
img { border:0;outline:0;}

body {
    font-family: "Microsoft YaHei";
    background: #FFF;
}

.clear {
    zoom: 1;
}

.clear:after {
    display: table;
    content: '';
    clear: both;
}
.AppBtn {
    display: none;
    float: left;
    margin-top: 4px;
}
.AppBtn img {
    width: 32px;
    height: auto;
}
.AppBtn2 {
    display: none;
    float: right;
    margin-right: 18px;
    margin-top: 7px;
}
.AppBtn2 img {
    width: 30px;
    height: auto;
}
.AppBtnBox .AppBtn2 {
    display: block;
}
.AppBtnBox_book .AppBtn2 {
    display: block;
    margin-top: 23px;
}
.sk_warp_center_book.AppBtnBox_app .content_head_book .view {
    margin-right: 48px!important;
}
.PcBtn {
    display: none;
}
.pcNone {
    display: none!important;
}
a {
    text-decoration: none;
    color: #212121;
}
a:hover {
    color: #277398;
}
.fl {
    float: left;
}

.fr {
    float: right;
}

.f_16{
    font-size: 16px;
}

.f_18{
    font-size: 18px;
}

.f_20{
    font-size: 20px;
}

.bold {
    font-weight: bold;
}
.mt0 {
    margin-top: 0!important;
}
.mt10 {
    margin-top: 10px;
}

.mt20 {
    margin-top: 20px;
}

.mt30 {
    margin-top: 30px;
}

.mt40 {
    margin-top: 40px;
}

.mt50 {
    margin-top: 50px;
}

.mt60 {
    margin-top: 60px;
}

.mt70 {
    margin-top: 70px;
}

.mt80 {
    margin-top: 80px;
}

.mt90 {
    margin-top: 90px;
}

.mt100 {
    margin-top: 90px;
}

.pt10 {
    padding-top: 10px;
}
.pt20 {
    padding-top: 20px;
}
.pt30 {
    padding-top: 30px;
}
.pt40 {
    padding-top: 40px;
}
.pt50 {
    padding-top: 50px;
}
.pt60 {
    padding-top: 60px;
}
.pt70 {
    padding-top: 70px;
}
.pt80 {
    padding-top: 80px;
}

.pt90 {
    padding-top: 90px;
}

.ml5{
    margin-left: 5px;
}

.ml25{
    margin-left: 25px;
}
.ml30{
    margin-left: 30px;
}

.graybg {
    background-color: #f5f5f5;
}

.graybgToWhite {
    background-image: linear-gradient(to bottom, #f5f5f5 98%, #FFF 100%);
}

.enlarge {
    transition: all .3s;
    -webkit-transition: all .3s;
    -moz-transition: all .3s;
    -ms-transition: all .3s;
    -o-transition: all .3s;
}

.enlarge:hover{
    transform: scale(1.1);
    -webkit-transform: scale(1.1);
    -moz-transform: scale(1.1);
    -ms-transform: scale(1.1);
    -o-transform: scale(1.1);
}

/*  首页头部  */
.top {
    width: 100%;
    min-width: 1400px;
    height: 138px;
    border-top: 6px solid #2181b0;
    position: relative;
}

.top_left {
    width: 260px;
    height: 138px;
    padding-top: 42px;
    padding-left: 50px;
    box-sizing: border-box;
    color: #2181b0;
    float: left;
    position: absolute;
    left: 0;
    top: 0;
    z-index: 10;
}

.top_left p{
    font-size: 18px;
    font-weight: bold;
}
.top_left a {
    color: #2181b0;
}

.top_left .language{
    margin-top: 14px;
}

.top_left .language span{
    margin: 0 8px
}

.top_left .language a{
    font-size: 16px;
    color: #2181b0;
}

.top_center{
    width: 100%;
    height: 138px;
    margin: 0 auto;
    text-align: center;
    padding-top: 30px;
    box-sizing: border-box;
}

.top_right {
    width: 330px;
    height: 138px;
    position: absolute;
    right: 0;
    top: 0;
    z-index: 10;
    padding-top: 38px;
    box-sizing: border-box;

}

.top_right .other_href_div {
    color: #2181b0;
    /* width: 288px; */
    text-align: right;
}

.top_right .other_href_div a {
    font-weight: bold;
    color: #2181b0;
    margin-right: 40px;
}

.top_right .other_href_div span {
    margin: 0 8px;
}

.search_div {
    width: 250px;
    height: 30px;
    border-radius: 50px;
    -webkit-border-radius: 50px;
    -moz-border-radius: 50px;
    -ms-border-radius: 50px;
    -o-border-radius: 50px;
    border: 1px solid #87bbd4;
    margin-top: 18px;
    overflow: hidden;
    margin-right: 40px;
    float: right;
}

.search_div .search_input {
    height: 30px;
    line-height: 30px;
    border: none;
    width: 200px;
    padding-left: 14px;
    box-sizing: border-box;
    float: left;
    font-size: 14px;
}

.search_div .search_btn {
    width: 36px;
    height: 30px;
    background: url(./sk_icon_search_v2022.png) no-repeat left center;
    display: block;
    float: right;
    border: 0;
    cursor: pointer;
}

.notice_recruit {
    position: relative;
}

.notice_recruit::before {
    content: '';
    width: 3px;
    height: 3px;
    background-color: #2181b0;
    position: absolute;
    top: 50%;
    margin-top: -1px;
    left: 50%;
    margin-left: -1px;
    display: block;
    border-radius: 100%;
    -webkit-border-radius: 100%;
    -moz-border-radius: 100%;
    -ms-border-radius: 100%;
    -o-border-radius: 100%;
}
/* top end */

/* nav start */
.warp_center {
    width: 1400px;
    margin: 50px auto!important;
}
.nav_wrap {
    width: 100%;
    transition: top 1s;
    font-size: 18px;
    position: fixed;
    top: 0;
    left: 0;
    z-index: 999;
    background: #fff;
    height: 48px;
    line-height: 48px;
    box-shadow: 0 0 20px 0 #999999;
}

.nav_wrap .nav_main{
    height: 48px;
    background: url(./sk_nav_bg_v2022.png) repeat-x bottom;
    position: relative;
    z-index: 2;
}

.nav_box {
    width: 1400px;
    height: 48px;
    margin: 0 auto;
    line-height: 48px;
}
.nav_ul{
    float: left;
}

.nav_ul li {
    float: left;
    height: 48px;
    position: relative;
}

.nav_ul li a {
    width: 100%;
    color: #FFF;
    display: block;
    box-sizing: border-box;
    line-height: 46px;
    text-align: center;
    padding: 0 20px;
}
.nav_ul .nav_zp {
    text-indent: -2px;
}
.nav_ul .nav_zp i {
    display: inline-block;
    width: 5px;
    height: 5px;
    background: #ffffff;
    border-radius: 10px;
    margin: 0 6px 3px;
}
.nav_fixed .nav_ul .nav_zp i {
    display: inline-block;
    width: 5px;
    height: 5px;
    background: #727272;
    border-radius: 10px;
    margin: 0 6px 3px;
}

.nav_fixed .nav_ul li a {
    line-height: 64px;
}


.nav_ul li:first-child a::before, .nav_ul li:first-child a.active::before, .nav_ul li:first-child a.hover::before {
    content: '';
    display: block;
    position: absolute;
    left: 0;
    top: 0;
    height: 100%;
    width: 34px;
    background-size: 24px auto;
}

.nav_fixed .nav_ul li:first-child a::before,
.nav_fixed .nav_ul li:first-child a.active::before,
.nav_fixed .nav_ul li:first-child a.hover::before{
    content: '';
    display: block;
    position: absolute;
    left: 0;
    top: 0;
    height: 100%;
    width: 30px;
    background: url(sk02-fixedNav-icon4.png) 8px center no-repeat;
    background-size: 20px auto;

}




.nav_ul li a.icon_learn {
    /*width: 150px;*/
    box-sizing: border-box;

}

.nav_ul li a.arrow:hover{
    background-position: 104px 24px !important
}
.nav_ul li a.arrow i{
    position: absolute;
    width: 17px;
    height: 13px;
    background: url(./sk_nav_arrow_v2022.png) no-repeat;
    left: 106px;
    top: 50%;
    margin-top: -6px;
    transition: transform 1s;
}

.nav_ul li a.arrow:hover i,.nav_ul li a.arrow.hover i{
    transform: rotate(180deg);
}
.nav_ul li a:hover,
.nav_ul li a.active,
.nav_ul li a.hover{
    content: '';
    width: 100%;
    height: 54px;
    margin-top: -6px;
    line-height: 58px;
    background-color: #bd0d0d;
    display: block;
}
.nav_ul li a.icon_learn:hover,.nav_ul li a.icon_learn.active {
    /* width: 150px;
    background: #bd0d0d  url(./sk_nav_text_v2022.png) no-repeat 38px 14px; */
}
.nav_more {
    /* float: right; */
    color: #FFF;
    font-size: 20px;
    position: absolute;
}
.nav_more:hover {
    color: #FFFFFF;
}
.sub_nav {
    width: 100%;
    background: #bfdcec;
    display: none;
}
.nav_fixed .sub_nav {
    background: #dedede;
}

.sub_nav ul {
    width: 1400px;
    height: 48px;
    line-height: 48px;
    margin: 0 auto;
    overflow: hidden;
    font-size: 18px;
}

.sub_nav li {
    float: left;
    margin-left: 34px;
}

.sub_nav li:nth-last-child() {
    margin-right: 0;
}

.sub_nav li a {
    color: #124c68;
}

.nav_wrap .sub_xktx{
    position: absolute;
    height: 48px;
    line-height: 48px;
    top: 0;
    left: 0;
    background: #dfeaf0;
    width: 100%;
    overflow: hidden;
    transition: all 0.6s;
    opacity: 0;
    box-shadow: 0 0 20px 0 #89b2cf;
}
.nav_fixed .sub_xktx {
    background: #f5f5f5;
    box-shadow: 0 0 20px 0 #999999;
}
.nav_wrap .sub_xktx.active{
    top: 100%;
    opacity: 1;
}



.nav_wrap .sub_xktx .nav_wrapper{
    width: 1400px;
    margin: 0 auto;
}


.nav_wrap .sub_xktx a{
    color: #124c68;
    margin: 0 7px;
    display: inline-block;
}
.nav_wrap .sub_xktx a:hover {
    text-decoration: underline;
}
.nav_wrap li.nav_child{
    position: absolute;
    width: 100%;

}

.nav_fixed{
    position: fixed;
    top: 0;
    left: 0;
    z-index: 999;
    background: #fff;
    height: 60px;
    line-height: 64px;
    box-shadow: 0 0 20px 0 #999999;
}

.nav_fixed.nav_wrap .nav_main{
    height: 60px;
}

.nav_fixed .nav_ul li a:hover,.nav_fixed .nav_ul li a.active,.nav_fixed .nav_ul li a.hover{
    background: none;
    margin-top: 0;
    width: auto;
    height: 64px;
    line-height: 64px;
    color: #bd0d0d;
}

.nav_fixed .nav_ul li a:hover::after,.nav_fixed  .nav_ul li a.active::after,.nav_fixed  .nav_ul li a.hover::after{
    background: #bd0d0d;
    bottom: 0;
    left: 36%;
    top: auto;
}

.nav_fixed .nav_ul li a:hover::after,.nav_fixed  .nav_ul li a.active::after,.nav_fixed  .nav_ul li a.hover::after{
    width: 30px;
}

.nav_fixed .nav_ul li a{
    color: #212121;
}

.nav_fixed .nav_box {
    position: static;
    margin: 0 auto;
}
.nav_fixed .nav_ul li{
    height: 60px;
}

.nav_fixed .nav_ul li a.icon_learn{
    background-image: url('sk02-fixedNav-icon3.png');
    text-indent: 32px;
    background-repeat: no-repeat;
    background-position: 8px 15px !important;
}

.nav_fixed .nav_ul li a.icon_learn:hover{
    background-image: url('sk02-fixedNav-icon2.png');
}

.nav_fixed .nav_ul li a.arrow i{
    background-image: url('sk02-fixedNav-icon1.png');
}

.nav_fixed .nav_ul li a:hover::before,.nav_fixed .nav_ul li a.active::before,.nav_fixed .nav_ul li a.hover::before{
    background-image: url('sk02-fixedNav-icon4.png');
}
.nav_site_more{
    color: #2181b0;
    display: none;
}
.nav_fixed .nav_more{
    color: #2181b0;
    display: none;
}

.nav_wrap .nav_fixed_logo{
    position: absolute;
    left: 20px;
    top: 10px;
    z-index: 10;
}
.nav_fixed .title {
    float: left;
    margin-top: 15px;
    padding-left: 20px;
    font-size: 14px;
}
.nav_fixed .title span {
    margin: 0 10px;
    font-weight: normal;
    color: #000;
}
.nav_fixed.nav_wrap .nav_fixed_logo{
    transform: translateY(-50%) scale(1);
}

.nav_fixed.nav_wrap .nav_fixed_search{
    transform: scale(1);
}

.nav_wrap .nav_fixed_logo img {
    display: block;
    width: 140px;
    height: auto;
}
.nav_wrap .nav_fixed_search{
    width: 200px;
    height: 30px;
    z-index: 10;
    border-radius: 16px;
    border: 1px solid #CCCCCC;
    overflow: hidden;
    margin-top: 0;
    margin-right: 0px;
    position: absolute;
    top: 8px;
    right: 20px;
}
.nav_wrap .nav_fixed_search .search_btn{
    top: 0;
    right: 0;
    height: 32px;
    position: absolute;
    width: 32px;
    background-color: #fff;
    background-image: url('sk_icon_search_black_v2022.png');
    background-repeat: no-repeat;
    background-position: 0 center;
    cursor: pointer;
    z-index: 2;

}

.nav_wrap .nav_fixed_search input{
    height: 30px;
    width: 100%;
    vertical-align: top;
    border: none;
    text-indent: 20px;
}

.nav_fixed + .warp_center_list{
    margin-top: 70px;
}

.nav_fixed .sub_nav {
    position: fixed;
    z-index: 9999;
    top: 64px;
}
.nav_site_mobile {
    display: none;
}
/* nav end */

/* 网站导航 start */
.nav_site_more_con{display: none;background:#fff;font-family:"Microsoft YaHei",\5FAE\8F6F\96C5\9ED1; width: 100% !important;}
.nav_site_more_con h1{text-align: center;margin-top:70px}
.nav_site_more_con .navtop {border-bottom:1px solid #ECECEC;padding-bottom: 30px;margin-top:50px}
.nav_site_more_con .navtop li{font-size: 20px;line-height:35px;float:left;margin-left:64px}
.nav_site_more_con .navtop li:first-child {margin-left: 0;}
.nav_site_more_con h3{font-size: 18px;color: #2181B0;margin-top:20px;}
.nav_site_more_con .layout {width: 1280px;margin: 0 auto;}
.more_con{font-size: 16px;border-bottom:1px solid #ECECEC;padding-bottom: 30px;}
.more_con a{margin:25px 21px 0 0px;display:inline-block;width:205px;}
.more_con a:nth-child(6n) {width: auto;}
.more_btn{background:url(close.png) no-repeat;width:22px;height:22px;position: absolute;top:50px;right:5%;cursor: pointer;}
.more_btn{-webkit-transition: -webkit-transform 0.4s ease-out;-moz-transition: -webkit-transform 0.4s ease-out;transition: -webkit-transform 0.4s ease-out;}
.more_btn:hover{-webkit-transform: rotate(360deg);-moz-transform: rotate(360deg);transform: rotate(360deg);}
.nav_site_more_con .new_media_ul li {margin-right: 32px;}
.nav_site_more_con .navtop li.icon_learn {
    box-sizing: border-box;
    background: url(sk02-fixedNav-icon3-red.png) no-repeat 0px 4px;
    text-indent: 42px;
    background-size: 38px 26px;
    padding-left: 0;
}
.nav_site_more_con .navtop li.icon_learn a {
    color: #bd0d0d;
}
.middelLine_title02 {
    width: 100%;
    font-size: 40px;
    font-weight: bold;
    color: #277398;
    text-align: center;
    position: relative;
}

.middelLine_title02::before {
    content: '';
    width: 580px;
    height: 1px;
    background-color: #277398;
    position: absolute;
    left: 0;
    top: 26px;
    display: block;
}

.middelLine_title02::after {
    content: '';
    width: 580px;
    height: 1px;
    background-color: #277398;
    position: absolute;
    right: 0;
    top: 26px;
    display: block;
}

.new_media_ul {
    overflow: hidden;
}

.new_media_ul li {
    width: 186px;
    height: 200px;
    /* background-color: #333; */
    float: left;
    margin-right: 32px;
}

.new_media_ul li:nth-child(6) {
    margin-right: 0;
}
.new_media_ul {
    overflow: hidden;
    margin-top: 40px;
}

.new_media_ul li {
    width: 186px;
    height: 200px;
    /* background-color: #333; */
    float: left;
    margin-right: 56px;
}

.new_media_ul li:nth-child(6) {
    margin-right: 0;
}

.card_container{
    width: 186px;
    height: 100%;
    transform-style: preserve-3d;
    -webkit-transform-style: preserve-3d;
    -moz-transform-style: preserve-3d;
    -ms-transform-style: preserve-3d;
    transition: transform .5s;
    -webkit-transition: transform .5s;
    -moz-transition: transform .5s;
    -ms-transition: transform .5s;
    -o-transition: transform .5s;
    font-size: 16px;
    color: #0c5375;
}

.new_media_ul li .front,
.new_media_ul li .back {
    background: url(./sk_v2022_newMedia_bg.png) no-repeat center;
    width: 186px;
    height: 200px;
    position: absolute;
    overflow: hidden;
    text-align: center;

    box-sizing: border-box;
}

.new_media_ul li .front p,
.new_media_ul li .back p {
    text-align: center;
    color: #0c5375;
}

.new_media_ul li .front {
    padding: 40px;
}

.new_media_ul li .back {
    padding: 30px;
}

.new_media_ul li .back{
    backface-visibility: hidden;
    -webkit-backface-visibility: hidden;
    -moz-backface-visibility: hidden;
    -ms-backface-visibility: hidden;
    color: #FFF;
    transform:  rotateY(180deg);
    -webkit-transform:  rotateY(180deg);
    -moz-transform:  rotateY(180deg);
    -ms-transform:  rotateY(180deg);
    -o-transform:  rotateY(180deg);
    transition: all .5s;
    -webkit-transition: all .5s;
    -moz-transition: all .5s;
    -ms-transition: all .5s;
    -o-transition: all .5s;
    opacity: 0;
}

.new_media_ul .active .card_container .back{
    backface-visibility: visible;
    -webkit-backface-visibility: visible;
    -moz-backface-visibility: visible;
    -ms-backface-visibility: visible;
    opacity: 1;
}

.new_media_ul .active .card_container{
    transform: rotateY(-180deg);
    -webkit-transform: rotateY(-180deg);
    -moz-transform: rotateY(-180deg);
    -ms-transform: rotateY(-180deg);
    -o-transform: rotateY(-180deg);
}
/* 网站导航 end */
/* 首页底部 */
.sk_footer{
    padding: 20px 0;
    min-height: 160px;
    background-color: #2181b0;
    color: #fff;
    text-align: center;
    position: relative;
    font-size: 18px;
}
.sk_footer .links{
    padding: 20px 0;
}
.sk_footer .links a{
    display: inline-block;
    margin: 0 20px;
    position: relative;
}
.sk_footer a{
    color: #fff;
}
.sk_footer .icp{
    margin-bottom: 20px;
}
.sk_footer .icp span{
    display: inline-block;
    margin:  0 10px;
}
.sk_footer .icp_sscp span{
    display: inline-block;
    margin:  0 20px;
}
.sk_footer .icp_sscp{
    margin-bottom: 0;
    width: 1400px;
    margin: 0 auto;
    position: relative;
}

.sk_footer .icp_sscp .sk_sscp_logo{
    position: absolute;
    left: 150px;
    top: -10px;
}

.sk_footer .icp_sscp .knet{
    position: absolute;
    right: 90px;
    top: -5px;
}

/* 二级底部 */
.sk_footer_white{
    border-top: 6px solid #2181b0;
    background-color: #fefefe;
    background-image: linear-gradient(#ffffff, #f0f0f0);
    color: #212121;
}
.sk_footer_white a{
    color: #212121;
}
.sk_footer_white a:hover {
    color: #2181b0;
}
.sk_footer_white .links a:after {
    content: "";
    width: 1px;
    height: 15px;
    display: block;
    position: absolute;
    right: -22px;
    top: 5px;
    background: #999;
}

.sk_footer_white .links a:nth-child(5):after {
    display: none;
}
/* 面包屑 */
.sk_crumbs{
    color: #666666;
    font-size: 16px;
    line-height: 24px;
    padding: 15px 0;
}
.sk_crumbs a{
    color: #666666;
}

/* 翻页 */
.pages{
    padding: 30px 0;
    text-align: center;
}
.pages a{
    display: inline-block;
    border: 1px solid #dddddd;
    padding: 3px 12px;
    font-size: 16px;
    border-radius: 2px;
    margin: 0 2px;
}
.pages a:hover {
    border: 1px solid #2181b0;
}
.pages a.active{
    background-color: #2181b0;
    border-color: #2181b0;
    color: #fff;
}
.pages span {
    margin: 0 5px;
}
.pages input{
    width: 34px;
    height: 27px;
    text-align: center;
    display: inline-block;
    border:1px solid #ddd;
}
.pages .sk05_submit{
    width: 38px;
    height: 28px;
    border-radius: 2px;
    background-color: #2181b0;
    color: #fff;
    font-size: 16px;
    cursor: pointer;
    border: 0;
}

.AppBtnBox.nav_fixed .nav_site_pc {
    display: none;
}
.AppBtnBox.nav_fixed .nav_fixed_search {
    right: 55px!important;
}
.AppBtnBox.nav_fixed .nav_box {

}
.AppBtnBox.nav_fixed .nav_more {
    top: 10px!important;
    right: 20px!important;
}


.rightBar{
    position: absolute;
    bottom:110px;
    right:20px;
    z-index: 99;
}
.rightBar .backTop{
    display: block;
    width:63px;
    height: 63px;
    background: url(sk_gotop.png) center center no-repeat;
    box-shadow: 0 0 3px rgba(178,178,178,0.1);
    -webkit-transition: all 0.8s ease;
    transition: all 0.8s ease;
    -webkit-transform: translateY(50px);
    transform: translateY(50px);
}
.rightBar .backTop:hover{
    background: url(sk_gotop_active.png) center center no-repeat;
    background-size: 100% 100%;
}

.fiexd_title_wrap {
    width: 100%;
    color: #666;
    background-color: #f5f5f5;
    position: fixed;
    /*display: none;*/
    transition: all .5s;
    top: -80px;
}

.fiexd_title {
    width: 1400px;
    margin: 0 auto;
    font-size: 26px;
    padding: 25px;
    line-height: 1.5;
    background-color: #FFF;
    text-align: center;
    box-shadow: 0px 10px 10px -10px #d6d6d6;
    box-sizing: border-box;
}

.fiexd_title_text {
    color: #333;
    font-weight: bold;
    /*text-align: center;*/
}

/* 二维码  */

.qrcodeCanvas_wrap {
    width: 100%;
    margin: 40px 0 0;
}

.qrcodeCanvas_wrap p {
    text-align: center;
    line-height: 40px;
    font-size: 16px;
}

@media screen and (max-width: 1890px) {
    .nav_box {
        width: 70%;
        height: 48px;
        margin: 0 auto;
        line-height: 48px;
        position: initial;
    }
    .nav_ul {
        width: 105%;
        margin-left: -50px;
    }
    .nav_ul li {
        float: left;
        width: 9.7%;
        height: 48px;
        position: relative;
    }
    .nav_ul li a:hover, .nav_ul li a.active, .nav_ul li a.hover {
        content: '';
        width: 100%;
        height: 54px;
        margin-top: -6px;
        line-height: 58px;
        background-color: #bd0d0d;
        display: block;
    }
    .nav_ul li a.arrow i {
        left: 83%;
    }
    .nav_more {
        margin-right: 10px;
    }
}
@media screen and (max-width: 1600px) {
    .nav_box {
        width: 70%;
        height: 48px;
        margin: 0 auto;
        line-height: 48px;
        position: initial;
    }
    .nav_ul {
        width: 102%;
        margin-left: -50px;
    }
    .nav_ul li {
        float: left;
        width: 9.5%;
        height: 48px;
        position: relative;
    }
    
    .nav_ul li a {
    padding: 0 10px;
}
    .nav_ul li a:hover, .nav_ul li a.active, .nav_ul li a.hover {
        content: '';
        width: 100%;
        height: 54px;
        margin-top: -6px;
        line-height: 58px;
        background-color: #bd0d0d;
        display: block;
    }
    .nav_ul li a.arrow i {
        left: 83%;
    }
    .nav_more {
        margin-right: 10px;
    }
}

@media screen and (max-width: 1440px) {
    .warp_center {
        width: 1000px;
        margin: 38px auto!important;
    }
    .nav_site_more_con .navtop li.icon_learn {
        box-sizing: border-box;
        background: url(sk02-fixedNav-icon3-red.png) no-repeat 0px 7px;
        text-indent: 34px;
        background-size: 32px 20px;
        padding-left: 0;
    }
    .sk_footer {
        font-size: 12px;
        min-height: 100px;
        padding: 10px 0;
    }
    .sk_footer .icp{
        margin-bottom: 10px;
    }
    .sk_footer .icp_sscp{
        width: 1000px;
    }
    .sk_footer .icp_sscp .sk_sscp_logo{
        left: 110px;
    }
    .sk_footer .links{
        padding: 10px 0;
    }
    .sk_footer .links a{
        margin: 0 10px;
    }

    /*  首页头部  */
    .top {
        width: 100%;
        min-width: 1000px;
        height: 102px;
        border-top: 4px solid #2181b0;
        position: relative;
    }

    .top_left {
        width: 186px;
        height: 102px;
        padding-top: 32px;
        padding-left: 36px;
        box-sizing: border-box;
        color: #2181b0;
        float: left;
        position: absolute;
        left: 0;
        top: 0;
        z-index: 10;
    }

    .top_left p{
        font-size: 14px;
        font-weight: bold;
    }

    .top_left .language{
        margin-top: 10px;
    }

    .top_left .language span{
        margin: 0 8px
    }

    .top_left .language a{
        font-size: 14px;
        color: #2181b0;
    }

    .top_center{
        width: 100%;
        height: 66px;
        margin: 0 auto;
        text-align: center;
        padding-top: 22px;
        box-sizing: border-box;
    }

    .top_center img{
        height: 66px
    }

    .top_right {
        width: 290px;
        height: 102px;
        position: absolute;
        right: 0;
        top: 0;
        z-index: 10;
        padding-top: 28px;
        box-sizing: border-box;

    }

    .top_right .other_href_div {
        color: #2181b0;
        /* width: 288px; */
        text-align: right;
    }

    .top_right .other_href_div a {
        font-weight: bold;
        color: #2181b0;
        font-size: 14px;
    }

    .top_right .other_href_div span {
        margin: 0 8px;
    }

    .search_div {
        width: 200px;
        height: 26px;
        border-radius: 50px;
        -webkit-border-radius: 50px;
        -moz-border-radius: 50px;
        -ms-border-radius: 50px;
        -o-border-radius: 50px;
        border: 1px solid #87bbd4;
        margin-top: 6px;
        overflow: hidden;
        margin-right: 40px;
        float: right;
    }

    .search_div .search_input {
        height: 26px;
        line-height: 26px;
        border: none;
        width: 170px;
        padding-left: 12px;
        box-sizing: border-box;
        float: left;
        font-size: 12px;
    }

    .search_div .search_btn {
        width: 24px;
        height: 24px;
        background: url(./sk_icon_search_v2022.png) no-repeat left center;
        background-size: 16px;
        display: block;
        float: right;
    }

    .notice_recruit {
        position: relative;
    }

    .notice_recruit::before {
        content: '';
        width: 3px;
        height: 3px;
        background-color: #2181b0;
        position: absolute;
        top: 50%;
        margin-top: -1px;
        left: 50%;
        margin-left: -1px;
        display: block;
        border-radius: 100%;
        -webkit-border-radius: 100%;
        -moz-border-radius: 100%;
        -ms-border-radius: 100%;
        -o-border-radius: 100%;
    }
    /* top end */

    /* nav start */

    .nav_wrap {
        width: 100%;
        transition: top 1s;
        font-size: 14px;
        height: 38px;
        line-height: 38px;
    }

    .nav_wrap .nav_main{
        height: 38px;
        background: url(./sk_nav_bg_v2022.png) repeat-x bottom;
        background-size: contain;
        position: relative;
        z-index: 2;
    }

    .nav_box {
        width: 70%;
        height: 38px;
        margin: 0 auto;
        line-height: 40px;
    }
    .nav_ul{
        margin-left: -50px;
        width: 102%;
    }

    .nav_ul li {
        float: left;
        width: 9.8%;
        height: 38px;
        position: relative;
    }

    .nav_ul li a {
        width: 100%;
        color: #FFF;
        display: block;
        padding-left: 0px;
        box-sizing: border-box;
        line-height: 38px;
        font-size: 16px;
        text-align: center;
    }
    .nav_fixed .nav_ul li a {
        line-height: 54px;
    }

    .nav_ul li a::before {
        content: '';
        width: 100%;
    }
    .nav_ul .nav_zp i {
        display: inline-block;
        width: 3px;
        height: 3px;
        background: #ffffff;
        border-radius: 10px;
        margin: 0 4px 3px;
    }
    .nav_fixed .nav_ul .nav_zp i {
        display: inline-block;
        width: 3px;
        height: 3px;
        background: #727272;
        border-radius: 10px;
        margin: 0 4px 3px;
    }

    .nav_ul li a.arrow:hover{
        background-position: 104px 24px !important
    }
    .nav_ul li a.arrow i{
        position: absolute;
        width: 12px;
        height: 8px;
        background: url(./sk_nav_arrow_v2022.png) no-repeat;
        background-size: 12px;
        left: 86%;
        top: 50%;
        margin-top: -3px;
        transition: all 1s;
        -webkit-transition: all 1s;
        -moz-transition: all 1s;
        -ms-transition: all 1s;
        -o-transition: all 1s;
    }

    .nav_ul li a.arrow:hover i,.nav_ul li a.arrow.hover i{
        transform: rotate(180deg);
    }
    .nav_ul li a:hover,
    .nav_ul li a.active,
    .nav_ul li a.hover{
        content: '';
        width: 100%;
        height: 40px;
        margin-top: -2px;
        line-height: 42px;
        background-color: #bd0d0d;
        display: block;
    }

    .nav_ul li:first-child{
        width: 96px;
    }

    .nav_ul li a.icon_learn {
        /* width: 110px; */
        box-sizing: border-box;
        background: url(./sk_nav_text_v2022.png) no-repeat 25px 7px;
        background-size: 28px;
        text-indent: 40px;
        display: block;
    }

    .nav_ul li a.icon_learn:hover,
    .nav_ul li a.icon_learn.active {
        width: 90px;
        background: #bd0d0d  ;
        background-size: 28px;
        text-indent: 0px;
    }



    .nav_more {
        position: absolute;
        color: #FFF;
        font-size: 14px;
        line-height: 38px;
        margin-right: 0;
    }
    .nav_more:hover {
        color: #FFFFFF;
    }
    .sub_nav {
        width: 100%;
        background: #bfdcec;
        display: none;
    }
    .nav_fixed .sub_nav {
        background: #dedede;
    }

    .sub_nav ul {
        width: 1400px;
        height: 48px;
        line-height: 48px;
        margin: 0 auto;
        overflow: hidden;
        font-size: 18px;
    }

    .sub_nav li {
        float: left;
        margin-left: 34px;
    }

    .sub_nav li:nth-last-child() {
        margin-right: 0;
    }

    .sub_nav li a {
        color: #124c68;
    }
    .nav_wrap .sub_xktx{
        position: absolute;
        line-height: 38px;
        height: 38px;
        top: 0;
        left: 0;
        background: #dfeaf0;
        width: 100%;
        overflow: hidden;
        transition: all 0.6s;
        opacity: 0;
        box-shadow: 0 0 20px 0 #89b2cf;
    }
    .nav_fixed .sub_xktx {
        background: #f5f5f5;
        box-shadow: 0 0 20px 0 #999999;
    }
    .nav_wrap .sub_xktx.active{
        top: 100%;
        opacity: 1;
    }
    .nav_wrap .sub_xktx .nav_wrapper{
        width: 1000px;
        margin: 0 auto;
    }
    .nav_wrap .sub_xktx a{
        color: #124c68;
        margin: 0 3px;
        display: inline-block;
    }

    .nav_wrap li.nav_child{
        position: absolute;
        width: 100%;
    }
    .nav_fixed{
        position: fixed;
        top: -54px;
        left: 0;
        z-index: 999;
        background: #fff;
        height: 54px;
        line-height: 54px;
        box-shadow: 0 0 20px 0 #999999;
    }
    .nav_fixed.nav_wrap .nav_main{
        background: #fff;
        height: 54px;
    }
    .nav_fixed .nav_ul li a:hover,.nav_fixed .nav_ul li a.active,.nav_fixed .nav_ul li a.hover{
        background: none;
        margin-top: 0;
        width: auto;
        height: 54px;
        line-height: 54px;
        color: #bd0d0d;
    }
    .nav_fixed .nav_ul li a:hover::after,.nav_fixed  .nav_ul li a.active::after,.nav_fixed  .nav_ul li a.hover::after{
        background: #bd0d0d;
        bottom: 0;
        left: 36%;
        top: auto;
    }

    .nav_fixed .nav_ul li a:hover::after,.nav_fixed  .nav_ul li a.active::after,.nav_fixed  .nav_ul li a.hover::after{
        width: 30px;
    }

    .nav_fixed .nav_ul li a{
        color: #212121;
    }

    .nav_fixed .nav_box{
        position: static;
        margin: 0 auto;
        height: 38px;
        line-height: 38px;
    }

    .nav_fixed .nav_ul li{
        height: 54px;
    }

    .nav_fixed .nav_ul li a.icon_learn{
        background-image: url('sk02-fixedNav-icon3.png');
        text-indent: 28px;
        background-size: 30px;
        background-repeat: no-repeat;
        background-position: 0px 15px !important;
    }

    .nav_fixed .nav_ul li a.icon_learn:hover{
        background-image: url('sk02-fixedNav-icon2.png');
    }

    .nav_fixed .nav_ul li a.arrow i{
        background-image: url('sk02-fixedNav-icon1.png');
        left: 70px;
        top: 25px;
    }

    .nav_fixed .nav_ul li a:hover::before,.nav_fixed .nav_ul li a.active::before,.nav_fixed .nav_ul li a.hover::before{
        background-image: url('sk02-fixedNav-icon4.png');
    }

    .nav_fixed .nav_more{
        color: #2181b0;
    }

    .nav_fixed.nav_wrap .nav_fixed_logo,.nav_fixed.nav_wrap .nav_fixed_search{
        display: block;
        opacity: 1;
    }

    .nav_wrap .nav_fixed_logo {
        position: absolute;
        left: 10px;
        top: 7px;
        z-index: 10;
    }

    .nav_fixed.nav_wrap .nav_fixed_logo{
        transform: translateY(-50%) scale(1);
    }

    .nav_fixed.nav_wrap .nav_fixed_search{
        transform: scale(1);
    }

    .nav_wrap .nav_fixed_logo img {
        display: block;
        width: 110px;
        height: auto;
    }
    .nav_fixed .title {
        float: left;
        margin-top: 10px;
        padding-left: 15px;
        font-size: 12px;
    }
    .nav_wrap .nav_fixed_search {
        width: 180px;
        height: 24px;
        z-index: 10;
        border-radius: 16px;
        border: 1px solid #CCCCCC;
        overflow: hidden;
        top: 6px;
        right: 10px;
    }
    .nav_wrap .nav_fixed_search input {
        height: 24px;
        width: 100%;
        vertical-align: top;
        border: none;
        text-indent: 12px;
    }
    .nav_wrap .nav_fixed_search .search_btn {
        top: 0;
        right: 0;
        height: 28px;
        position: absolute;
        width: 32px;
        background-color: #fff;
        background-image: url(sk_icon_search_black_v2022.png);
        background-repeat: no-repeat;
        background-position: 0 center;
        cursor: pointer;
        z-index: 2;
    }
    .nav_fixed + .warp_center_list{
        margin-top: 70px;
    }

    .nav_fixed .sub_nav {
        position: fixed;
        z-index: 9999;
        top: 64px;
    }
    /*翻页*/
    .pages {
        padding: 20px 0;
        text-align: center;
        font-size: 12px;
    }
    .pages a {
        display: inline-block;
        border: 1px solid #dddddd;
        padding: 3px 8px;
        font-size: 12px;
        border-radius: 2px;
    }
    .pages input {
        width: 34px;
        height: 23px;
        text-align: center;
        display: inline-block;
        border: 1px solid #ddd;
    }
    .pages .sk05_submit {
        width: 30px;
        height: 26px;
        border-radius: 2px;
        background-color: #2181b0;
        color: #fff;
        font-size: 12px;
        cursor: pointer;
    }
    /* nav end */
    .nav_fixed .nav_ul li > a:after{
        left: -20%;
    }
    .nav_fixed .nav_ul li a:hover::after,.nav_fixed  .nav_ul li a.active::after,.nav_fixed  .nav_ul li a.hover::after{
        background: #bd0d0d;
        bottom: 0;
        left: 20%;
        top: auto;
    }

    .nav_site_more_con .layout {
        width: 800px;
    }
    .nav_site_more_con h1 {
        text-align: center;
        margin-top: 50px;
    }
    .nav_site_more_con h1 img {
        width: 250px;
        height: auto;
    }
    .more_con {
        font-size: 14px;
        border-bottom: 1px solid #ECECEC;
        padding-bottom: 20px;
    }
    .nav_site_more_con .navtop {
        border-bottom: 1px solid #ECECEC;
        padding-bottom: 20px;
        margin-top: 30px;
    }
    .nav_site_more_con .navtop li {
        font-size: 16px;
        line-height: 35px;
        float: left;
        margin-left: 26px;
    }
    .more_con a {
        margin: 20px 0px 0 0px;
        display: inline-block;
        width: 138px;
    }
    .nav_site_more_con h3 {
        font-size: 16px;
        color: #2181B0;
        margin-top: 20px;
    }
    .nav_site_more_con .new_media_ul li {
        margin-right: 0px;
    }
    .sk_footer .icp_sscp .knet {
        position: absolute;
        right: 50px;
        top: -5px;
    }
    .sk_footer {
        font-size: 12px;
        min-height: 100px;
        padding: 10px 0;
    }
    .sk_footer .icp{
        margin-bottom: 10px;
    }
    .sk_footer .icp_sscp{
        width: 1000px;
    }
    .sk_footer .icp_sscp .sk_sscp_logo{
        left: 110px;
    }
    .sk_footer .links{
        padding: 10px 0;
    }
    .sk_footer .links a{
        margin: 0 10px;
    }
    .sk_footer_white .links a:after {
        content: "";
        width: 1px;
        height: 10px;
        display: block;
        position: absolute;
        right: -12px;
        top: 4px;
        background: #999;
    }
    .new_media_ul {
        overflow: hidden;
    }

    .new_media_ul li:nth-child(6) {
        margin-right: 0;
    }

    .card_container{
        width: 140px;
        height: 100%;
        transform-style: preserve-3d;
        -webkit-transform-style: preserve-3d;
        -moz-transform-style: preserve-3d;
        -ms-transform-style: preserve-3d;
        transition: transform .5s;
        -webkit-transition: transform .5s;
        -moz-transition: transform .5s;
        -ms-transition: transform .5s;
        -o-transition: transform .5s;
        font-size: 16px;
        color: #0c5375;
    }

    .new_media_ul li .front,
    .new_media_ul li .back {
        background: url(./sk_v2022_newMedia_bg.png) no-repeat center;
        background-size: 100%;
        width: 140px;
        height: 150px;
        position: absolute;
        overflow: hidden;
        text-align: center;

        box-sizing: border-box;
    }

    .new_media_ul li .front p,
    .new_media_ul li .back p {
        text-align: center;
        color: #0c5375;
        font-size: 12px;
    }

    .new_media_ul li .front p{
        margin-top: 10px;
    }

    .new_media_ul li .front {
        padding: 30px;
    }

    .new_media_ul li .front img{
        width: 70%;
    }

    .new_media_ul li .back {
        padding: 30px;
    }

    .new_media_ul li .back img {
        width: 90%;
    }

    .new_media_ul li .back{
        backface-visibility: hidden;
        -webkit-backface-visibility: hidden;
        -moz-backface-visibility: hidden;
        -ms-backface-visibility: hidden;
        color: #FFF;
        transform:  rotateY(180deg);
        -webkit-transform:  rotateY(180deg);
        -moz-transform:  rotateY(180deg);
        -ms-transform:  rotateY(180deg);
        -o-transform:  rotateY(180deg);
        transition: all .5s;
        -webkit-transition: all .5s;
        -moz-transition: all .5s;
        -ms-transition: all .5s;
        -o-transition: all .5s;
        opacity: 0;
    }

    .new_media_ul .active .card_container .back{
        backface-visibility: visible;
        -webkit-backface-visibility: visible;
        -moz-backface-visibility: visible;
        -ms-backface-visibility: visible;
        opacity: 1;
    }

    .new_media_ul .active .card_container{
        transform: rotateY(-180deg);
        -webkit-transform: rotateY(-180deg);
        -moz-transform: rotateY(-180deg);
        -ms-transform: rotateY(-180deg);
        -o-transform: rotateY(-180deg);
    }
    .card_container {
        width: 120px;
        height: 100%;
        transform-style: preserve-3d;
        -webkit-transform-style: preserve-3d;
        -moz-transform-style: preserve-3d;
        -ms-transform-style: preserve-3d;
        transition: transform .5s;
        -webkit-transition: transform .5s;
        -moz-transition: transform .5s;
        -ms-transition: transform .5s;
        -o-transition: transform .5s;
        font-size: 16px;
        color: #0c5375;
    }
    .new_media_ul li .front, .new_media_ul li .back {
        background: url(./sk_v2022_newMedia_bg.png) no-repeat center;
        background-size: 100%;
        width: 120px;
        height: 130px;
        position: absolute;
        overflow: hidden;
        text-align: center;
        box-sizing: border-box;
    }
    .new_media_ul li {
        height: 151px;
        /* background-color: #333; */
        float: left;
        margin-right: 42px;
    }
    .nav_ul li:first-child a::before, .nav_ul li:first-child a.active::before, .nav_ul li:first-child a.hover::before {
        content: '';
        display: block;
        position: absolute;
        left: 0;
        top: 0;
        height: 100%;
        width: 24px;
        background-size: 20px auto;
    }
    .nav_ul .nav_zp {
        text-indent: -2px;
    }
    .rightBar{
        position: absolute;
        bottom:90px;
        right:20px;
        z-index: 99;
    }
    .rightBar .backTop{
        display: block;
        width:43px;
        height: 43px;
        background: url(sk_gotop.png) center center no-repeat;
        background-size: 100% 100%;
        box-shadow: 0 0 3px rgba(178,178,178,0.1);
        -webkit-transition: all 0.8s ease;
        transition: all 0.8s ease;
        -webkit-transform: translateY(50px);
        transform: translateY(50px);
    }

    .fiexd_title_wrap {
        top: -70px;
    }
    .fiexd_title {
        width: 1000px;
        font-size: 22px;
        padding: 20px;
    }
    /* 二维码  */

    .qrcodeCanvas_wrap {
        width: 100%;
        margin: 20px 0 0;
    }

    .qrcodeCanvas_wrap p {
        text-align: center;
        line-height: 20px;
        font-size: 14px;
    }
}

@media screen and (max-width: 1200px) {
    .warp_center {
        width: 1000px;
        margin: 38px auto!important;
    }
    .nav_site_more_con .navtop li.icon_learn {
        box-sizing: border-box;
        background: url(sk02-fixedNav-icon3-red.png) no-repeat 0px 7px;
        text-indent: 34px;
        background-size: 32px 20px;
        padding-left: 0;
    }
    .sk_footer {
        font-size: 12px;
        min-height: 100px;
        padding: 10px 0;
    }
    .sk_footer .icp{
        margin-bottom: 10px;
    }
    .sk_footer .icp_sscp{
        width: 1000px;
    }
    .sk_footer .icp_sscp .sk_sscp_logo{
        left: 110px;
    }
    .sk_footer .links{
        padding: 10px 0;
    }
    .sk_footer .links a{
        margin: 0 10px;
    }

    /*  首页头部  */
    .top {
        width: 100%;
        min-width: 1000px;
        height: 102px;
        border-top: 4px solid #2181b0;
        position: relative;
    }

    .top_left {
        width: 186px;
        height: 102px;
        padding-top: 32px;
        padding-left: 36px;
        box-sizing: border-box;
        color: #2181b0;
        float: left;
        position: absolute;
        left: 0;
        top: 0;
        z-index: 10;
    }

    .top_left p{
        font-size: 14px;
        font-weight: bold;
    }

    .top_left .language{
        margin-top: 10px;
    }

    .top_left .language span{
        margin: 0 8px
    }

    .top_left .language a{
        font-size: 14px;
        color: #2181b0;
    }

    .top_center{
        width: 100%;
        height: 66px;
        margin: 0 auto;
        text-align: center;
        padding-top: 22px;
        box-sizing: border-box;
    }

    .top_center img{
        height: 66px
    }

    .top_right {
        width: 290px;
        height: 102px;
        position: absolute;
        right: 0;
        top: 0;
        z-index: 10;
        padding-top: 28px;
        box-sizing: border-box;

    }

    .top_right .other_href_div {
        color: #2181b0;
        /* width: 288px; */
        text-align: right;
    }

    .top_right .other_href_div a {
        font-weight: bold;
        color: #2181b0;
        font-size: 14px;
    }

    .top_right .other_href_div span {
        margin: 0 8px;
    }

    .search_div {
        width: 200px;
        height: 26px;
        border-radius: 50px;
        -webkit-border-radius: 50px;
        -moz-border-radius: 50px;
        -ms-border-radius: 50px;
        -o-border-radius: 50px;
        border: 1px solid #87bbd4;
        margin-top: 6px;
        overflow: hidden;
        margin-right: 40px;
        float: right;
    }

    .search_div .search_input {
        height: 26px;
        line-height: 26px;
        border: none;
        width: 170px;
        padding-left: 12px;
        box-sizing: border-box;
        float: left;
        font-size: 12px;
    }

    .search_div .search_btn {
        width: 24px;
        height: 24px;
        background: url(./sk_icon_search_v2022.png) no-repeat left center;
        background-size: 16px;
        display: block;
        float: right;
    }

    .notice_recruit {
        position: relative;
    }

    .notice_recruit::before {
        content: '';
        width: 3px;
        height: 3px;
        background-color: #2181b0;
        position: absolute;
        top: 50%;
        margin-top: -1px;
        left: 50%;
        margin-left: -1px;
        display: block;
        border-radius: 100%;
        -webkit-border-radius: 100%;
        -moz-border-radius: 100%;
        -ms-border-radius: 100%;
        -o-border-radius: 100%;
    }
    /* top end */

    /* nav start */

    .nav_wrap {
        width: 100%;
        transition: top 1s;
        font-size: 16px;
        height: 38px;
        line-height: 38px;
    }

    .nav_wrap .nav_main{
        height: 38px;
        background: url(./sk_nav_bg_v2022.png) repeat-x bottom;
        background-size: contain;
        position: relative;
        z-index: 2;
    }

    .nav_box {
        width: 62%;
        height: 38px;
        margin: 0 auto;
        line-height: 40px;
    }
    .nav_ul{
        margin-left: -70px;
        width: 110%;
    }

    .nav_ul li {
        float: left;
        width: 9.7%;
        height: 38px;
        position: relative;
    }

    .nav_ul li a {
        width: 100%;
        color: #FFF;
        display: block;
        padding-left: 0px;
        box-sizing: border-box;
        line-height: 38px;
        font-size: 14px;
        text-align: center;
    }
    .nav_fixed .nav_ul li a {
        line-height: 54px;
    }

    .nav_ul li a::before {
        content: '';
        width: 100%;
    }
    .nav_ul .nav_zp i {
        display: inline-block;
        width: 2px;
        height: 2px;
        background: #ffffff;
        border-radius: 10px;
        margin: 0 2px 3px;
    }
    .nav_fixed .nav_ul .nav_zp i {
        display: inline-block;
        width: 3px;
        height: 3px;
        background: #727272;
        border-radius: 10px;
        margin: 0 4px 3px;
    }

    .nav_ul li a.arrow:hover{
        background-position: 104px 24px !important
    }
    .nav_ul li a.arrow i{
        position: absolute;
        width: 12px;
        height: 8px;
        background: url(./sk_nav_arrow_v2022.png) no-repeat;
        background-size: 12px;
        left: 86%;
        top: 50%;
        margin-top: -3px;
        transition: all 1s;
        -webkit-transition: all 1s;
        -moz-transition: all 1s;
        -ms-transition: all 1s;
        -o-transition: all 1s;
    }

    .nav_ul li a.arrow:hover i,.nav_ul li a.arrow.hover i{
        transform: rotate(180deg);
    }
    .nav_ul li a:hover,
    .nav_ul li a.active,
    .nav_ul li a.hover{
        content: '';
        width: 100%;
        height: 40px;
        margin-top: -2px;
        line-height: 42px;
        background-color: #bd0d0d;
        display: block;
    }

    .nav_ul li:first-child{
    }

    .nav_ul li a.icon_learn {
        /* width: 110px; */
        box-sizing: border-box;
        background: url(./sk_nav_text_v2022.png) no-repeat 19px 8px;
        background-size: 28px;
        text-indent: 44px;
        display: block;
    }

    .nav_ul li a.icon_learn:hover,
    .nav_ul li a.icon_learn.active {
        background-size: 28px;
        text-indent: 0px;
    }



    .nav_more {
        float: right;
        color: #FFF;
        font-size: 14px;
        line-height: 38px;
        margin-right: 0;
    }
    .nav_more:hover {
        color: #FFFFFF;
    }
    .sub_nav {
        width: 100%;
        background: #bfdcec;
        display: none;
    }
    .nav_fixed .sub_nav {
        background: #dedede;
    }

    .sub_nav ul {
        width: 1400px;
        height: 48px;
        line-height: 48px;
        margin: 0 auto;
        overflow: hidden;
        font-size: 18px;
    }

    .sub_nav li {
        float: left;
        margin-left: 34px;
    }

    .sub_nav li:nth-last-child() {
        margin-right: 0;
    }

    .sub_nav li a {
        color: #124c68;
    }
    .nav_wrap .sub_xktx{
        position: absolute;
        line-height: 38px;
        height: 38px;
        top: 0;
        left: 0;
        background: #dfeaf0;
        width: 100%;
        overflow: hidden;
        transition: all 0.6s;
        opacity: 0;
        box-shadow: 0 0 20px 0 #89b2cf;
    }
    .nav_fixed .sub_xktx {
        background: #f5f5f5;
        box-shadow: 0 0 20px 0 #999999;
    }
    .nav_wrap .sub_xktx.active{
        top: 100%;
        opacity: 1;
    }
    .nav_wrap .sub_xktx .nav_wrapper{
        width: 1000px;
        margin: 0 auto;
    }
    .nav_wrap .sub_xktx a{
        color: #124c68;
        margin: 0 2px;
        display: inline-block;
        font-size: 14px;
    }

    .nav_wrap li.nav_child{
        position: absolute;
        width: 100%;
    }
    .nav_fixed{
        position: fixed;
        top: -54px;
        left: 0;
        z-index: 999;
        background: #fff;
        height: 54px;
        line-height: 54px;
        box-shadow: 0 0 20px 0 #999999;
    }
    .nav_fixed.nav_wrap .nav_main{
        background: #fff;
        height: 54px;
    }
    .nav_fixed .nav_ul li a:hover,.nav_fixed .nav_ul li a.active,.nav_fixed .nav_ul li a.hover{
        background: none;
        margin-top: 0;
        width: auto;
        height: 54px;
        line-height: 54px;
        color: #bd0d0d;
    }
    .nav_fixed .nav_ul li a:hover::after,.nav_fixed  .nav_ul li a.active::after,.nav_fixed  .nav_ul li a.hover::after{
        background: #bd0d0d;
        bottom: 0;
        left: 36%;
        top: auto;
    }

    .nav_fixed .nav_ul li a:hover::after,.nav_fixed  .nav_ul li a.active::after,.nav_fixed  .nav_ul li a.hover::after{
        width: 30px;
    }

    .nav_fixed .nav_ul li a{
        color: #212121;
    }

    .nav_fixed .nav_box{
        position: static;
        margin: 0 auto;
        height: 38px;
        line-height: 38px;
    }

    .nav_fixed .nav_ul li{
        height: 54px;
    }

    .nav_fixed .nav_ul li a.icon_learn{
        background-image: url('sk02-fixedNav-icon3.png');
        text-indent: 28px;
        background-size: 30px;
        background-repeat: no-repeat;
        background-position: 0px 15px !important;
    }

    .nav_fixed .nav_ul li a.icon_learn:hover{
        background-image: url('sk02-fixedNav-icon2.png');
    }

    .nav_fixed .nav_ul li a.arrow i{
        background-image: url('sk02-fixedNav-icon1.png');
        left: 70px;
        top: 25px;
    }

    .nav_fixed .nav_ul li a:hover::before,.nav_fixed .nav_ul li a.active::before,.nav_fixed .nav_ul li a.hover::before{
        background-image: url('sk02-fixedNav-icon4.png');
    }

    .nav_fixed .nav_more{
        color: #2181b0;
    }

    .nav_fixed.nav_wrap .nav_fixed_logo,.nav_fixed.nav_wrap .nav_fixed_search{
        display: block;
        opacity: 1;
    }

    .nav_wrap .nav_fixed_logo {
        position: absolute;
        left: 10px;
        top: 7px;
        z-index: 10;
    }

    .nav_fixed.nav_wrap .nav_fixed_logo{
        transform: translateY(-50%) scale(1);
    }

    .nav_fixed.nav_wrap .nav_fixed_search{
        transform: scale(1);
    }

    .nav_wrap .nav_fixed_logo img {
        display: block;
        width: 110px;
        height: auto;
    }
    .nav_fixed .title {
        float: left;
        margin-top: 10px;
        padding-left: 15px;
        font-size: 12px;
    }
    .nav_wrap .nav_fixed_search {
        width: 180px;
        height: 24px;
        z-index: 10;
        border-radius: 16px;
        border: 1px solid #CCCCCC;
        overflow: hidden;
        top: 6px;
        right: 10px;
    }
    .nav_wrap .nav_fixed_search input {
        height: 24px;
        width: 100%;
        vertical-align: top;
        border: none;
        text-indent: 12px;
    }
    .nav_wrap .nav_fixed_search .search_btn {
        top: 0;
        right: 0;
        height: 28px;
        position: absolute;
        width: 32px;
        background-color: #fff;
        background-image: url(sk_icon_search_black_v2022.png);
        background-repeat: no-repeat;
        background-position: 0 center;
        cursor: pointer;
        z-index: 2;
    }
    .nav_fixed + .warp_center_list{
        margin-top: 70px;
    }

    .nav_fixed .sub_nav {
        position: fixed;
        z-index: 9999;
        top: 64px;
    }
    /*翻页*/
    .pages {
        padding: 20px 0;
        text-align: center;
        font-size: 12px;
    }
    .pages a {
        display: inline-block;
        border: 1px solid #dddddd;
        padding: 3px 8px;
        font-size: 12px;
        border-radius: 2px;
    }
    .pages input {
        width: 34px;
        height: 23px;
        text-align: center;
        display: inline-block;
        border: 1px solid #ddd;
    }
    .pages .sk05_submit {
        width: 30px;
        height: 26px;
        border-radius: 2px;
        background-color: #2181b0;
        color: #fff;
        font-size: 12px;
        cursor: pointer;
    }
    /* nav end */
    .nav_fixed .nav_ul li > a:after{
        left: -20%;
    }
    .nav_fixed .nav_ul li a:hover::after,.nav_fixed  .nav_ul li a.active::after,.nav_fixed  .nav_ul li a.hover::after{
        background: #bd0d0d;
        bottom: 0;
        left: 20%;
        top: auto;
    }

    .nav_site_more_con .layout {
        width: 800px;
    }
    .nav_site_more_con h1 {
        text-align: center;
        margin-top: 50px;
    }
    .nav_site_more_con h1 img {
        width: 250px;
        height: auto;
    }
    .more_con {
        font-size: 14px;
        border-bottom: 1px solid #ECECEC;
        padding-bottom: 20px;
    }
    .nav_site_more_con .navtop {
        border-bottom: 1px solid #ECECEC;
        padding-bottom: 20px;
        margin-top: 30px;
    }
    .nav_site_more_con .navtop li {
        font-size: 16px;
        line-height: 35px;
        float: left;
        margin-left: 26px;
    }
    .more_con a {
        margin: 20px 0px 0 0px;
        display: inline-block;
        width: 138px;
    }
    .nav_site_more_con h3 {
        font-size: 16px;
        color: #2181B0;
        margin-top: 20px;
    }
    .nav_site_more_con .new_media_ul li {
        margin-right: 0px;
    }
    .sk_footer .icp_sscp .knet {
        position: absolute;
        right: 50px;
        top: -5px;
    }
    .sk_footer {
        font-size: 12px;
        min-height: 100px;
        padding: 10px 0;
    }
    .sk_footer .icp{
        margin-bottom: 10px;
    }
    .sk_footer .icp_sscp{
        width: 1000px;
    }
    .sk_footer .icp_sscp .sk_sscp_logo{
        left: 110px;
    }
    .sk_footer .links{
        padding: 10px 0;
    }
    .sk_footer .links a{
        margin: 0 10px;
    }
    .sk_footer_white .links a:after {
        content: "";
        width: 1px;
        height: 10px;
        display: block;
        position: absolute;
        right: -12px;
        top: 4px;
        background: #999;
    }
    .new_media_ul {
        overflow: hidden;
    }

    .new_media_ul li:nth-child(6) {
        margin-right: 0;
    }

    .card_container{
        width: 140px;
        height: 100%;
        transform-style: preserve-3d;
        -webkit-transform-style: preserve-3d;
        -moz-transform-style: preserve-3d;
        -ms-transform-style: preserve-3d;
        transition: transform .5s;
        -webkit-transition: transform .5s;
        -moz-transition: transform .5s;
        -ms-transition: transform .5s;
        -o-transition: transform .5s;
        font-size: 16px;
        color: #0c5375;
    }

    .new_media_ul li .front,
    .new_media_ul li .back {
        background: url(./sk_v2022_newMedia_bg.png) no-repeat center;
        background-size: 100%;
        width: 140px;
        height: 150px;
        position: absolute;
        overflow: hidden;
        text-align: center;

        box-sizing: border-box;
    }

    .new_media_ul li .front p,
    .new_media_ul li .back p {
        text-align: center;
        color: #0c5375;
        font-size: 12px;
    }

    .new_media_ul li .front p{
        margin-top: 10px;
    }

    .new_media_ul li .front {
        padding: 30px;
    }

    .new_media_ul li .front img{
        width: 70%;
    }

    .new_media_ul li .back {
        padding: 30px;
    }

    .new_media_ul li .back img {
        width: 90%;
    }

    .new_media_ul li .back{
        backface-visibility: hidden;
        -webkit-backface-visibility: hidden;
        -moz-backface-visibility: hidden;
        -ms-backface-visibility: hidden;
        color: #FFF;
        transform:  rotateY(180deg);
        -webkit-transform:  rotateY(180deg);
        -moz-transform:  rotateY(180deg);
        -ms-transform:  rotateY(180deg);
        -o-transform:  rotateY(180deg);
        transition: all .5s;
        -webkit-transition: all .5s;
        -moz-transition: all .5s;
        -ms-transition: all .5s;
        -o-transition: all .5s;
        opacity: 0;
    }

    .new_media_ul .active .card_container .back{
        backface-visibility: visible;
        -webkit-backface-visibility: visible;
        -moz-backface-visibility: visible;
        -ms-backface-visibility: visible;
        opacity: 1;
    }

    .new_media_ul .active .card_container{
        transform: rotateY(-180deg);
        -webkit-transform: rotateY(-180deg);
        -moz-transform: rotateY(-180deg);
        -ms-transform: rotateY(-180deg);
        -o-transform: rotateY(-180deg);
    }
    .card_container {
        width: 120px;
        height: 100%;
        transform-style: preserve-3d;
        -webkit-transform-style: preserve-3d;
        -moz-transform-style: preserve-3d;
        -ms-transform-style: preserve-3d;
        transition: transform .5s;
        -webkit-transition: transform .5s;
        -moz-transition: transform .5s;
        -ms-transition: transform .5s;
        -o-transition: transform .5s;
        font-size: 16px;
        color: #0c5375;
    }
    .new_media_ul li .front, .new_media_ul li .back {
        background: url(./sk_v2022_newMedia_bg.png) no-repeat center;
        background-size: 100%;
        width: 120px;
        height: 130px;
        position: absolute;
        overflow: hidden;
        text-align: center;
        box-sizing: border-box;
    }
    .new_media_ul li {
        height: 151px;
        /* background-color: #333; */
        float: left;
        margin-right: 42px;
    }
    .nav_ul li:first-child a::before, .nav_ul li:first-child a.active::before, .nav_ul li:first-child a.hover::before {
        content: '';
        display: block;
        position: absolute;
        left: 0;
        top: 0;
        height: 100%;
        width: 20px;
        background-size: 14px auto;
    }
    .nav_ul .nav_zp {
        text-indent: 0px;
    }

}
@media screen and (max-width: 1000px) {
    .nav_box {
        display: none;
    }
    .AppBtnBox .nav_box {
        display: block;
    }
}