@charset "utf-8";
html { margin: 0; padding: 0; border: 0; font-family: "Microsoft YaHei"; }
* { font-family: "Microsoft YaHei"; }
body, div, span, object, iframe, h1, h2, h3, h4, p, blockquote, pre, a, address, code, b, em, img, dl, dt, dd, ol, ul, li, fieldset, form, label, footer, header, hgroup, nav, section { margin: 0; padding: 0; border: 0; font-family: "Microsoft YaHei"; }
ul, ol, li { list-style-type: none; }
body { overflow-x: hidden; background: #F2F3F8; }
/*common*/
a { text-decoration: none; color: #666 }
*:focus { outline: none; }
a:hover { color: #836B49; }
input::-webkit-input-placeholder {
color: #ccc;
}
input::-moz-input-placeholder {
color: #ccc;
}
input::-ms-input-placeholder {
color: #ccc;
}
/* display */
.none { display: none; }
.di { display: inline; }
.table { display: table }
.block { display: block !important; }
.dib { display: inline-block; }
.fl { float: left; }
.fr { float: right; }
/* 块状元素水平居中 */
.auto { margin-left: auto; margin-right: auto; }
.box { box-sizing: border-box; }
/* overflow */
.ovh { overflow: hidden; }
/* position */
.rel, .pr { position: relative; }
.abs, .pa { position: absolute; }
/* font-family */
.fw { font-family: 'Microsoft Yahei'; }
.fs { font-family: "宋体", Helvetica, Arial, sans-serif; }
/* font-style */
.n { font-weight: normal; font-style: normal; }
.b { font-weight: bold; }
.i { font-style: italic; }
/* text-align */
.tc { text-align: center; }
.tr { text-align: right; }
.tl { text-align: left; }
.tj { text-align: justify; }
.text-flex { display: flex !important; align-items: left; justify-content: center; flex-direction: column; }
/* 清除浮 动*/
.fix { *zoom:1;
}
.fix:after { content: " "; display: block; height: 0; clear: both; visibility: hidden; font-size: 0; }
.clear { clear: both; }
/*table*/
table { width: 100%; border-spacing: 0; border-collapse: collapse; }
/* margin */
.m0 { margin: 0 !important; }
.ml0 { margin-left: 0 }
.ml1 { margin-left: 1px; }
.ml2 { margin-left: 2px; }
.ml5 { margin-left: 5px; }
.ml10 { margin-left: 10px; }
.ml15 { margin-left: 15px; }
.ml20 { margin-left: 20px; }
.ml25 { margin-left: 25px; }
.ml30 { margin-left: 30px; }
.mr1 { margin-right: 1px; }
.mr2 { margin-right: 2px; }
.mr5 { margin-right: 5px; }
.mr10 { margin-right: 10px; }
.mr15 { margin-right: 15px; }
.mr20 { margin-right: 20px; }
.mr30 { margin-right: 30px; }
.mt1 { margin-top: 1px !important; }
.mt2 { margin-top: 2px; }
.mt5 { margin-top: 5px; }
.mt10 { margin-top: 10px !important; }
.mt15 { margin-top: 15px !important; }
.mt20 { margin-top: 20px !important; }
.mt25 { margin-top: 25px; }
.mt30 { margin-top: 30px; }
.mt40 { margin-top: 40px; }
.mt50 { margin-top: 50px; }
.mt60 { margin-top: 60px; }
.mb1 { margin-bottom: 1px; }
.mb2 { margin-bottom: 2px; }
.mb5 { margin-bottom: 5px; }
.mb10 { margin-bottom: 10px; }
.mb15 { margin-bottom: 15px; }
.mb20 { margin-bottom: 20px; }
.mb25 { margin-bottom: 25px; }
.mb30 { margin-bottom: 30px; }
.mb40 { margin-bottom: 40px; }
.mb50 { margin-bottom: 50px; }
.mb60 { margin-bottom: 60px; }
/* padding */
.p0 { padding: 0; }
.p1 { padding: 1px; }
.p2 { padding: 2px; }
.p5 { padding: 5px; }
.p10 { padding: 10px; }
.p15 { padding: 15px; }
.p20 { padding: 20px; }
.p30 { padding: 30px; }
.pl1 { padding-left: 1px; }
.pl2 { padding-left: 2px; }
.pl5 { padding-left: 5px; }
.pl10 { padding-left: 10px; }
.pl15 { padding-left: 15px; }
.pl20 { padding-left: 20px; }
.pl30 { padding-left: 30px; }
.pl80 { padding-left: 80px; }
.pr1 { padding-right: 1px; }
.pr2 { padding-right: 2px; }
.pr5 { padding-right: 5px; }
.pr10 { padding-right: 10px; }
.pr15 { padding-right: 15px; }
.pr20 { padding-right: 20px; }
.pr30 { padding-right: 30px; }
.pt1 { padding-top: 1px; }
.pt2 { padding-top: 2px; }
.pt5 { padding-top: 5px; }
.pt10 { padding-top: 10px !important; }
.pt15 { padding-top: 15px; }
.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; }
.pb1 { padding-bottom: 1px }
.pb2 { padding-bottom: 2px; }
.pb5 { padding-bottom: 5px; }
.pb10 { padding-bottom: 10px; }
.pb15 { padding-bottom: 15px; }
.pb20 { padding-bottom: 20px; }
.pb30 { padding-bottom: 30px; }
.pb40 { padding-bottom: 40px; }
.pb50 { padding-bottom: 50px; }
.pb60 { padding-bottom: 60px; }
.pb70 { padding-bottom: 70px; }
.pb80 { padding-bottom: 80px; }
/* vertical-align */
.vm { vertical-align: middle; }
.vtb { vertical-align: text-bottom; }
.vb { vertical-align: bottom; }
.vt { vertical-align: top; }
.vn { vertical-align: -2px; }
.bg_none { background: none !important; }
.bg_red { background: #d10312 !important; }
.bg_red2 { background: #cc1000 !important; }
.bg_fff { background: #fff !important; }
.bg_ccc { background: #ccc !important; }
.bg_ddd { background: #ddd !important; }
.bg_eee { background: #eee !important; }
.bg_333 { background: #333 !important; }
.bg_444 { background: #444 !important; }
.bg_blue { background: #3681f2 !important; }
.bg_f6 { background: #f6f6f6 !important; }
.bg_f8 { background: #f8f8f8!important; }
/*字体颜色*/
.c_fff, .cf { color: #fff !important; }
.c_000, .c0 { color: #000 !important; }
.c_333, .c3 { color: #333 !important; }
.c_666, .c6 { color: #666 !important; }
.c_999, .c9 { color: #999 !important; }
.c_ccc, .cc { color: #ccc !important; }
.c_ededed { color: #ededed !important; }
.c_red { color: #cf0408 !important; }
.c_blue { color: #3681f2 !important; }
/*字体大小*/
.font_12, .f12 { font-size: 12px !important; }
.font_14, .f14 { font-size: 14px !important; }
.font_16, .f16 { font-size: 16px !important; }
.font_18, .f18 { font-size: 18px !important; }
.font_20, .f20 { font-size: 20px !important; }
.font_22, .f22 { font-size: 22px !important; }
.font_24, .f24 { font-size: 24px !important; }
.font_26, .f26 { font-size: 26px !important; }
.font_28, .f28 { font-size: 28px !important; }
.font_30, .f30 { font-size: 30px !important; }
.font_35, .f35 { font-size: 35px !important; }
.font_40, .f40 { font-size: 40px !important; }
/*英文小写转大写*/
.uppercase { text-transform: uppercase; }
.ls1 { letter-spacing: 1px; }
.ls2 { letter-spacing: 2px; }
.ls3 { letter-spacing: 3px; }
.ls4 { letter-spacing: 4px; }
.ls5 { letter-spacing: 5px; }
/*宽度*/
.w100 { width: 100% }
.w95 { width: 95% }
.w90 { width: 90% }
.w80 { width: 80% }
.w70 { width: 70% }
.w60 { width: 60% }
.w50 { width: 50% }
.w40 { width: 40% }
.w33 { width: 33% }
.w30 { width: 30% }
.w25 { width: 25% }
.w20 { width: 20% }
.w10 { width: 10% }
.blank50 { height: 50px; width: 100% }
.blank40 { height: 40px; width: 100% }
.blank30 { height: 30px; width: 100% }
.blank20 { height: 20px; width: 100% }
.blank10 { height: 10px; width: 100% }
/*行高*/
.lh_12, .lh12 { line-height: 12px !important; }
.lh_14, .lh14 { line-height: 14px !important; }
.lh_16, .lh16 { line-height: 16px !important; }
.lh_18, .lh18 { line-height: 18px !important; }
.lh_20, .lh20 { line-height: 20px !important; }
.lh_22, .lh22 { line-height: 22px !important; }
.lh_24, .lh24 { line-height: 24px !important; }
.lh_26, .lh26 { line-height: 26px !important; }
.lh_28, .lh28 { line-height: 28px !important; }
.lh_30, .lh30 { line-height: 30px !important; }
.lh_35, .lh35 { line-height: 35px !important; }
.lh_40, .lh40 { line-height: 40px !important; }
.lh_50, .lh50 { line-height: 50px !important; }
/*角边颜色*/
.bnone { border: none !important; }
.b_ccc, .bc { border: #ccc 1px solid !important; }
.b_999, .b9 { border: #999 1px solid !important; }
.b_666, .b6 { border: #666 1px solid !important; }
.b_666, .b6 { border: #666 1px solid !important; }
.b_eee, .be { border: #eee 1px solid !important; }
.b_red { border: #cf0408 1px solid !important; }
/*圆角边*/
.br5 { border-radius: 5px; }
.br10 { border-radius: 10px; }
.br15 { border-radius: 15px; }
.br20 { border-radius: 20px; }
.br25 { border-radius: 25px; }
.br30 { border-radius: 30px; }
.br35 { border-radius: 35px; }
.br40 { border-radius: 40px; }
.br45 { border-radius: 45px; }
.br50 { border-radius: 50px; }
.nowrap { text-overflow: ellipsis; word-break: keep-all; white-space: nowrap; overflow: hidden; }
.lhxs { text-overflow: -o-ellipsis-lastline; overflow: hidden; text-overflow: ellipsis; display: -webkit-box; -webkit-line-clamp: 2; line-clamp: 2; -webkit-box-orient: vertical; }
.row { display: -ms-flexbox; display: flex; -ms-flex-wrap: wrap; flex-wrap: wrap; margin-right: -15px; margin-left: -15px; }
.wrap, .width { width: 1180px }
.con { width: 1180px; margin: 0px auto; }
.list_title { width: 1180px; margin-left: -600px; left: 50%; bottom: 38%; font-size: 46px; color: #fff; line-height: 58px; }
.local { padding: 30px 0; }
.local, .local a { color: #333; font-size: 14px; }
/*根据页面新增颜色**/
.bg_auto { background: #836B49 }
.c_auto { color: #836B49 }
.border_auto { border: #836B49 1px solid }
.space { display: flex; font-size: 16px; width: 100%; justify-content: space-between; align-items: center; }
/*菜单*/
.menu { background: #083b90; height: 40px; line-height: 40px; width: 750px; }
.nav { margin-left: 100px; }
.nav a { color: #fff; height: 50px; width: 96px; line-height: 50px; display: inline-block; }
.nav a.on { color: #fff; height: 50px; width: 100px; line-height: 50px; background: url(//www.news.cn/science/kxyl2021/images/menu_bg.png) center center no-repeat; }
.nav ul li { float: left; text-align: center; position: relative; margin-top: -5px; }
.div_flex { display: flex; -webkit-box-align: center; -webkit-align-items: center; -ms-flex-align: center; align-items: center; -webkit-box-pack: center; -webkit-justify-content: center; -ms-flex-pack: center; justify-content: space-between; }
.big_text { text-decoration: dashed; width: 440px; height: 440px; line-height: 70px; font-size: 24px; color: #f0f2f1 }
.big_text p { border-bottom: 1px dashed #999; font-size: 21px; letter-spacing: 6.5px; }
.pc_none { display: none; }
.top { width: 100%; height: 100px; position: fixed; background: rgba(16, 3, 3, 0.6); box-shadow: 0px 3px 5px rgba(51, 51, 51, 0.85); top: 0px; z-index: 3; }
.topbg { width: 100%; height: 20px; background: url(//www.news.cn/science/kxyl2021/images/topbg.png) repeat-x; position: relative; display: none; z-index: 6; }
.top_width { width: 1200px; margin: 0px auto; }
.logo { float: left; padding-top: 7px; }
.click_menu { line-height: 45px; font-size: 16px; font-weight: bold; display: none; /*background: #FFF;box-shadow: 0px 0px 5px #555; */ margin-bottom: 0px !important; position: fixed; top: 0px; z-index: 999; right: 0px; padding-top: 20px; }
.click_menu .c_menu { display: inline-block; height: 26px; width: 26px; line-height: 26px; padding-left: 14px; font-size: 12px; background: url(//www.news.cn/science/kxyl2021/images/m_right.png) no-repeat -36px 0px; background-size: 62px; }
.click_menu .phone { display: inline-block; width: 26px; height: 26px; margin-right: 12px; background: url(//www.news.cn/science/kxyl2021/images/m_right.png) no-repeat 0 0px; background-size: 62px; }
.backtotop { position: fixed; bottom: 80px; left: 40px; z-index: 2; width: 174px; height: 360px; }
.backtotop a { background: url(//www.news.cn/science/kxyl2021/images/backtop.png) no-repeat top center; width: 60px; height: 60px; display: inline-block; }

@media (min-width: 1200px) and (max-width: 1440px) {
.backtotop { left: 0px; z-index: 2; width: 100px; height: auto; }
.backtotop img { width: 100%; height: auto; }
}
.footer1 { background: #272a31 }
.footer2 { background: url(//www.news.cn/science/kxyl2021/images/footer.jpg) no-repeat top center; height: 185px }
.footer3 { background: #2d343d }
.foot1 { background: url(//www.news.cn/science/kxyl2021/images/logo3.png) no-repeat left center; height: 33px; line-height: 33px; padding-left: 42px; }
.footer2 a { color: #fff; font-size: 15px; margin-right: 32px; }
.footer2 a:hover { text-decoration: underline; }
.foottext { border-right: 1px solid #41464A; min-height: 180px }
.foottext .container ul li a { color: #878787 }
.foot_info li { width: 100%; display: table; margin-bottom: 16px; }
.foot_info p { float: left; min-height: 20px; line-height: 20px; padding-left: 10px; width: 85%; }