/* * {
  font-family: 'Microsoft Yahei', '微软雅黑', SimSun, Arial, tahoma, arial;
  font-size: 12px;
} */
html {
  height: 100%;
  overflow: auto;
  overflow-x: hidden;
}
body {
  color: #333333;
  background: #fff;
  width: 100%;
  overflow: auto;
  overflow-x: hidden;
  font-size: 12px;
}
h1,
h2,
h3,
select,
input,
button {
  font-size: 100%;
}
body,
h1,
h2,
h3,
ul,
li,
form,
p,
img,
dl,
dd,
dt {
  margin: 0;
  padding: 0;
  border: 0;
}
input,
button,
select,
img {
  margin: 0;
  line-height: normal;
}
select {
  padding: 1px;
}
ul {
  list-style: none;
}
select,
input,
button,
button img,
label {
  vertical-align: middle;
}
header,
footer,
section,
aside,
nav,
hgroup,
figure,
figcaption {
  display: block;
  margin: 0;
  padding: 0;
  border: none;
}


.fontWeight {
  font-weight: 700;
}
.fl {
  float: left;
}
.fr {
  float: right;
}
.r0 {
  right: 0;
}
.l0 {
  left: 0;
}
.r30 {
  right: 30px;
}
.l30 {
  left: 30px;
}
.r_30 {
  right: -30px;
}
.l_30 {
  left: -30px;
}
.l100 {
  left: 100px;
}
.r100 {
  right: 100px;
}
.l_100 {
  left: -100px;
}
.r_100 {
  right: -100px;
}
.t0 {
  top: 0;
}
.b0 {
  bottom: 0;
}

.mid {
  margin: 0 auto;
}
.border {
  box-sizing: border-box;
  -moz-box-sizing: border-box;
  -webkit-box-sizing: border-box;
  -o-box-sizing: border-box;
}

.ml5 {
  margin-left: 5px;
}
.ml6 {
  margin-left: 6px;
}
.ml10 {
  margin-left: 10px;
}
.ml15 {
  margin-left: 15px;
}
.ml20 {
  margin-left: 20px;
}
.ml25 {
  margin-left: 25px;
}
.ml30 {
  margin-left: 30px;
}
.ml40 {
  margin-left: 40px;
}
.ml45 {
  margin-left: 45px;
}
.ml50 {
  margin-left: 50px;
}
.ml55 {
  margin-left: 55px;
}
.ml60 {
  margin-left: 60px;
}
.ml70 {
  margin-left: 70px;
}
.ml80 {
  margin-left: 80px;
}
.ml90 {
  margin-left: 90px;
}
.ml100 {
  margin-left: 100px;
}

.red {
  color: #f00;
}
.orange {
  color: #ff9900;
}
.white {
  color: #fff;
}
.yellow {
  color: #ff0;
}
.blue {
  color: #0066cc;
}
.gray {
  color: #626262;
}
.black {
  color: #000;
}
select {
  /*Chrome锟斤拷Firefox锟斤拷锟斤拷谋呖锟斤拷遣锟揭伙拷锟斤拷模锟斤拷锟斤拷愿锟叫达拷锟揭伙拷锟�*/
  border: solid 1px #ddd;
  /*锟杰关硷拷锟斤拷锟斤拷默锟较碉拷select选锟斤拷锟斤拷锟绞斤拷锟斤拷*/
  appearance: none;
  -moz-appearance: none;
  -webkit-appearance: none;
  /*锟斤拷选锟斤拷锟斤拷锟斤拷锟揭诧拷锟叫硷拷锟斤拷示小锟斤拷头图片*/
  background: url('/static/website/images/arrow.png') no-repeat scroll right center transparent;
  /*为锟斤拷锟斤拷小锟斤拷头锟斤拷锟斤拷一锟斤拷位锟矫ｏ拷锟斤拷锟解被锟斤拷锟街革拷锟斤拷*/
  padding-right: 14px;
}
/*锟斤拷锟絠e锟斤拷默锟斤拷选锟斤拷锟斤拷锟绞斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷头*/
select::-ms-expand {
  display: none;
}
select option {
  border: 1px solid #03f;
  background: #fff;
  line-height: 25px;
  padding: 10px 0;
}
.clearfix:after {
  content: ' ';
  display: block;
  clear: both;
  height: 0;
}
.clearfix {
  zoom: 1;
}
/*省略号*/
/*
	0: 白底
	1/11：新闻中心列表
	2/22:视频新闻
	3/33:公司概况
*/
.ellipsis0,
.ellipsisNewsCenter,
.ellipsisNewsCenterMeida,
.ellipsis1,
.ellipsis11,
.ellipsis2,
.ellipsis22,
.ellipsis3,
.ellipsis33,
.ellipsisNewsVedio,
.ellipsisNewsVedioMedia,
.ellipsis5,
.ellipsis6 {
  position: relative;
  cursor: pointer;
  overflow: hidden;
}
.ellipsis0:after {
  content: '...';
  position: absolute;
  bottom: 0;
  right: 0;
  padding-left: 40px;
  background: -webkit-linear-gradient(left, rgba(255, 255, 255, 0), #fff 55%);
  background: -moz-linear-gradient(left, rgba(255, 255, 255, 0), #fff 55%);
  background: -o-linear-gradient(left, rgba(255, 255, 255, 0), #fff 55%);
  background: linear-gradient(to right, rgba(255, 255, 255, 0), #fff 55%);
}
.ellipsis1:after {
  content: '...';
  position: absolute;
  bottom: 0;
  right: 20px;
  padding-left: 40px;
  background: -webkit-linear-gradient(left, rgba(255, 255, 255, 0), rgb(247, 247, 249) 55%);
  background: -moz-linear-gradient(left, rgba(255, 255, 255, 0), rgb(247, 247, 249) 55%);
  background: -o-linear-gradient(left, rgba(255, 255, 255, 0), rgb(247, 247, 249) 55%);
  background: linear-gradient(to right, rgba(255, 255, 255, 0), rgb(247, 247, 249) 55%);
}
.ellipsis11:after {
  content: '...';
  position: absolute;
  bottom: 0;
  right: 20px;
  padding-left: 40px;
  background: -webkit-linear-gradient(left, rgba(255, 255, 255, 0), rgb(241, 241, 245) 55%);
  background: -moz-linear-gradient(left, rgba(255, 255, 255, 0), rgb(241, 241, 245) 55%);
  background: -o-linear-gradient(left, rgba(255, 255, 255, 0), rgb(241, 241, 245) 55%);
  background: linear-gradient(to right, rgba(255, 255, 255, 0), rgb(241, 241, 245) 55%);
}
.ellipsis2:after {
  content: '...';
  position: absolute;
  bottom: 0;
  right: 10px;
  padding-left: 40px;
  background: -webkit-linear-gradient(left, rgba(255, 255, 255, 0), #f7f7f9 55%);
  background: -moz-linear-gradient(left, rgba(255, 255, 255, 0), #f7f7f9 55%);
  background: -o-linear-gradient(left, rgba(255, 255, 255, 0), #f7f7f9 55%);
  background: linear-gradient(to right, rgba(255, 255, 255, 0), #f7f7f9 55%);
}
.ellipsis22:after {
  content: '...';
  position: absolute;
  bottom: 0;
  right: 10px;
  padding-left: 40px;
  background: -webkit-linear-gradient(left, rgba(255, 255, 255, 0), #f7f7f9 55%);
  background: -moz-linear-gradient(left, rgba(255, 255, 255, 0), #f7f7f9 55%);
  background: -o-linear-gradient(left, rgba(255, 255, 255, 0), #f7f7f9 55%);
  background: linear-gradient(to right, rgba(255, 255, 255, 0), #f7f7f9 55%);
}
.ellipsis3:after {
  content: '...';
  position: absolute;
  bottom: 0;
  right: 10px;
  padding-left: 40px;
  background: -webkit-linear-gradient(left, rgba(255, 255, 255, 0), #fff 55%);
  background: -moz-linear-gradient(left, rgba(255, 255, 255, 0), #fff 55%);
  background: -o-linear-gradient(left, rgba(255, 255, 255, 0), #fff 55%);
  background: linear-gradient(to right, rgba(255, 255, 255, 0), #fff 55%);
}
.ellipsis33:after {
  content: '...';
  position: absolute;
  bottom: 0;
  right: 10px;
  padding-left: 40px;
  background: -webkit-linear-gradient(left, rgba(255, 255, 255, 0), rgb(241, 241, 245) 55%);
  background: -moz-linear-gradient(left, rgba(255, 255, 255, 0), rgb(241, 241, 245) 55%);
  background: -o-linear-gradient(left, rgba(255, 255, 255, 0), rgb(241, 241, 245) 55%);
  background: linear-gradient(to right, rgba(255, 255, 255, 0), rgb(241, 241, 245) 55%);
}
.ellipsis5:after {
  content: '...';
  position: absolute;
  bottom: 0;
  right: 0px;
  padding-left: 40px;
  background: -webkit-linear-gradient(left, rgba(255, 255, 255, 0), #eee 55%);
  background: -moz-linear-gradient(left, rgba(255, 255, 255, 0), #eee 55%);
  background: -o-linear-gradient(left, rgba(255, 255, 255, 0), #eee 55%);
  background: linear-gradient(to right, rgba(255, 255, 255, 0), #eee 55%);
}
.ellipsis6:after {
  content: '...';
  position: absolute;
  bottom: 0;
  right: 0px;
  padding-left: 40px;
  background: -webkit-linear-gradient(left, rgba(255, 255, 255, 0), rgb(229, 1, 20) 55%);
  background: -moz-linear-gradient(left, rgba(255, 255, 255, 0), rgb(229, 1, 20) 55%);
  background: -o-linear-gradient(left, rgba(255, 255, 255, 0), rgb(229, 1, 20) 55%);
  background: linear-gradient(to right, rgba(255, 255, 255, 0), rgb(229, 1, 20) 55%);
}
.ellipsisNewsCenter:after {
  content: '...';
  position: absolute;
  bottom: 0;
  right: 10px;
  padding-left: 40px;
  background: -webkit-linear-gradient(left, rgba(255, 255, 255, 0), #fff 55%);
  background: -moz-linear-gradient(left, rgba(255, 255, 255, 0), #fff 55%);
  background: -o-linear-gradient(left, rgba(255, 255, 255, 0), #fff 55%);
  background: linear-gradient(to right, rgba(255, 255, 255, 0), #fff 55%);
}
.ellipsisNewsCenterMedia:after {
  content: '...';
  position: absolute;
  bottom: 0;
  right: 15px;
  padding-left: 40px;
  background: -webkit-linear-gradient(left, rgba(255, 255, 255, 0), rgb(241, 241, 245) 55%);
  background: -moz-linear-gradient(left, rgba(255, 255, 255, 0), rgb(241, 241, 245) 55%);
  background: -o-linear-gradient(left, rgba(255, 255, 255, 0), rgb(241, 241, 245) 55%);
  background: linear-gradient(to right, rgba(255, 255, 255, 0), rgb(241, 241, 245) 55%);
}
.ellipsisNewsVedio:after {
  content: '...';
  position: absolute;
  bottom: 0;
  right: 3px;
  padding-left: 40px;
  background: -webkit-linear-gradient(left, rgba(255, 255, 255, 0), rgb(247, 247, 249) 55%);
  background: -moz-linear-gradient(left, rgba(255, 255, 255, 0), rgb(247, 247, 249) 55%);
  background: -o-linear-gradient(left, rgba(255, 255, 255, 0), rgb(247, 247, 249) 55%);
  background: linear-gradient(to right, rgba(255, 255, 255, 0), rgb(247, 247, 249) 55%);
}
.ellipsisNewsVedioMedia:after {
  content: '...';
  position: absolute;
  bottom: 0;
  right: 3px;
  padding-left: 40px;
  background: -webkit-linear-gradient(left, rgba(255, 255, 255, 0), rgb(241, 241, 245) 55%);
  background: -moz-linear-gradient(left, rgba(255, 255, 255, 0), rgb(241, 241, 245) 55%);
  background: -o-linear-gradient(left, rgba(255, 255, 255, 0), rgb(241, 241, 245) 55%);
  background: linear-gradient(to right, rgba(255, 255, 255, 0), rgb(241, 241, 245) 55%);
}
.txtboth {
  display: block;
  text-align: justify;
  text-justify: inter-ideograph;
}
p {
  text-align: justify;
  text-justify: inter-ideograph;
}

/* 发现精彩 */

.fz48 {
  font-size: 48px;
  line-height: 1.3;
}

.fz40 {
  font-size: 26px;
  line-height: 1.3;
}

.fz30 {
  font-size: 30px;
  line-height: 1.3;
}

.fz24 {
  font-size: 24px;
  line-height: 1.3;
}

.fz20 {
  font-size: 20px;
  line-height: 1.3;
}

.rr {
  position: absolute;
  top: 17%;
  right: 0;
  cursor: pointer;
  width: 82px;
  height: 170px;
  background: url('/static/website/images/icon_menu_faxianjingcai.png');
}

.body_r {
  position: fixed;
  left: 100%;
  top: 0;
  bottom: 0;
  right: 0;
  transition: left 1.3s cubic-bezier(0.5, 0, 0.2, 1) 0s;
  z-index: 1;
  overflow: hidden;
}

.body_r.dis * {
  background: none !important;
}

.body_r.showdiv {
  left: 0;
}

.body_r .body_scroll {
  height: 100%;
  position: relative;
  overflow: hidden;
}

.body_r .ll {
  position: absolute;
  top: 50%;
  left: 0;
  text-align: center;
  transform: translateY(-50%);
  color: #fff;
  font-size: 20px;
  background: url(https://www.pku.edu.cn/Public/static/themes/image/png13.png) right 30px center no-repeat;
  padding-left: 40px;
  width: 20px;
  text-align: center;
  line-height: 1.2;
  cursor: pointer;
  transition: all 0.3s ease-out 0s;
  opacity: 0;
  visibility: hidden;
}

.body_r .ll:hover {
  padding-left: 50px;
}

#bg-home {
  background-image: url(/static/website/images/png13a.png);
}

.body_r.showdiv .ll {
  opacity: 1;
  visibility: visible;
}

.body_r.showdiv .ll a {
  color: white;
}

.body_r .arr {
  position: absolute;
  top: 50%;
  right: 10px;
  transform: translateY(-50%);
  color: #fff;
  font-size: 80px;
  cursor: pointer;
  font-family: icon;
  opacity: 0;
  transition: all 0.5s ease-out 0.5s;
  text-shadow: 0 0 5px rgba(0, 0, 0, 0.5);
}

.body_r.showdiv .arr {
  opacity: 1;
}

.body_r .arr.h {
  display: none;
}

.screen {
  float: left;
  height: 100%;
  position: relative;
}

.screen .title {
  color: #fff;
  display: -ms-flexbox;
  display: flex;
  -ms-flex-align: center;
  align-items: center;
  line-height: 1.1;
}

.screen .title .fz40 {
  width: 40px;
  white-space: normal;
}

.screen .title .p {
  width: 18px;
  font-size: 18px;
  margin-left: 25px;
  word-wrap: break-word;
}

.body_r .menu {
  position: absolute;
  width: 50px;
  height: 50px;
  right: 40px;
  top: 40px;
  background: #fff;
  border-radius: 100%;
  box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
  z-index: 2;
  transition: all 0.3s ease-out 0s;
  cursor: pointer;
}

.body_r .menu:hover {
  box-shadow: 0 0 20px rgba(0, 0, 0, 0.5);
}

.body_r .menu .inner {
  right: 25%;
  top: 15px;
  width: 50%;
  position: absolute;
}

.body_r .menu i {
  background: #333;
  border-radius: 2px;
  height: 2px;
  transition: all 0.2s ease-out 0s;
  -webkit-transition: all 0.2s ease-out 0s;
}

.body_r .menu i:nth-child(1) {
  width: 100%;
  position: absolute;
  right: 0;
  top: 0px;
}

.body_r .menu i:nth-child(2) {
  width: 100%;
  position: absolute;
  right: 0;
  top: 9px;
}

.body_r .menu i:nth-child(3) {
  width: 100%;
  position: absolute;
  right: 0;
  top: 18px;
}

.body_r .menu.act i:nth-child(1) {
  transform: translate(0, 9px) rotate(45deg);
}

.body_r .menu.act i:nth-child(2) {
  opacity: 0;
}

.body_r .menu.act i:nth-child(3) {
  transform: translate(0, -9px) rotate(-45deg);
}

.body_r .navg {
  position: absolute;
  left: 0;
  top: 0;
  right: 0;
  bottom: 0;
  display: -ms-flexbox;
  display: flex;
  z-index: 2;
  transition: all 0.5s ease-out 0s;
  opacity: 0;
  transform: scale(1.1);
  visibility: hidden;
}

.body_r .navg .logo {
  width: 240px;
}

.body_r .navg.showdiv {
  transform: none;
  opacity: 1;
  visibility: visible;
}

.body_r .navg > div {
  -ms-flex: 1;
  flex: 1;
}

.body_r .navg .l {
  background: #fff;
  position: relative;
}

.body_r .navg .l .inner {
  position: absolute;
  left: 50%;
  top: 50%;
  transform: translate(-55%, -50%);
}

.body_r .navg .l .list {
  margin-top: 50px;
}

.body_r .navg .l .item {
  font-size: 16px;
  height: 46px;
  line-height: 46px;
  width: 140px;
  position: relative;
}

.body_r .navg .l .item:before {
  border-top: 2px solid #94070a;
  position: absolute;
  left: 0;
  width: 0;
  content: '';
  bottom: 0;
  transition: all 0.5s ease-out 0s;
}

.body_r .navg .l .item:after {
  content: '';
  position: absolute;
  left: 100%;
  height: 0;
  bottom: 0;
  border-right: 2px solid #94070a;
}

.body_r .navg .l .item:hover:before {
  width: 100%;
}

.body_r .navg .l .item:hover:after {
  height: 20px;
  bottom: -9px;
  transition: all 0.5s ease-out 0.5s;
}

.body_r .navg .l .item ul {
  left: 100%;
  top: 0;
  line-height: 40px;
  opacity: 0;
  transition: all 0.5s ease-out 0s;
  position: absolute;
  visibility: hidden;
}

.body_r .navg .l .item:hover ul {
  opacity: 1;
  visibility: visible;
}

.body_r .navg .l .item li {
  padding-left: 20px;
  transition: all 0.3s ease-out 0s;
  white-space: nowrap;
}

.body_r .navg .l .item li:hover {
  padding-left: 30px;
}

.body_r .navg .l .item a:hover {
  color: #94070a;
}

.body_r .navg .l .tools {
  margin-top: 45px;
  display: -ms-flexbox;
  display: flex;
  -ms-flex-align: center;
  align-items: center;
}

.body_r .navg .l .tools .a {
  border: 1px solid #ddd;
  border-radius: 100%;
  margin-right: 20px;
  width: 40px;
  height: 40px;
  line-height: 40px;
  position: relative;
}

.body_r .navg .l .tools .a > a {
  display: -ms-flexbox;
  display: flex;
  width: 100%;
  height: 100%;
  -ms-flex-align: center;
  align-items: center;
  -ms-flex-pack: center;
  justify-content: center;
}

.body_r .navg .l .tools .sc a:after {
  content: '\e672';
  font-size: 20px;
  font-family: icon;
}

.body_r .navg .l .tools .log i:after {
  content: '\e601';
  font-size: 20px;
  font-family: icon;
}

.body_r .navg .l .tools .share-box {
  float: left;
}

.body_r .navg .l .tools .lang {
  font-size: 16px;
  font-family: Arial;
  text-transform: uppercase;
}

.body_r .navg .r {
  background: url(https://www.pku.edu.cn/Public/static/themes/image/pic39.jpg) center center no-repeat;
  background-size: cover;
}

.nav_b {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 30px;
  text-align: center;
  z-index: 2;
  display: -ms-flexbox;
  display: flex;
  color: #fff;
  -ms-flex-pack: center;
  justify-content: center;
  -ms-flex-align: center;
  align-items: center;
  opacity: 0;
  visibility: hidden;
  transition: all 0.6s ease-out 0s;
  transform: translateY(50px);
}

.nav_b.showdiv {
  opacity: 1;
  visibility: visible;
  transform: translateY(0px);
}

.nav_b .l {
  background: url(https://www.pku.edu.cn/Public/static/themes/image/png3.png) center top no-repeat;
  padding-top: 30px;
}

.nav_b .r {
  background: url(https://www.pku.edu.cn/Public/static/themes/image/png3.png) center top no-repeat;
  padding-top: 30px;
}

.nav_b .list {
  display: -ms-flexbox;
  display: flex;
  margin: 0 50px;
}

.nav_b .list .item {
  background: url(/static/website/images/bg_faxianjingcai_line.png) center top no-repeat;
  width: 120px;
  cursor: pointer;
}

.nav_b .list .item span {
  padding-top: 30px;
  display: inline-block;
  line-height: 1;
  position: relative;
}

.nav_b .list .item:first-child {
  width: 121px;
  background-position: -119px top;
  text-align: left;
}

.nav_b .list .item:first-child span {
  transform: translateX(-50%);
}

.nav_b .list .item:last-child {
  width: 120px;
  background-position: left top;
  text-align: right;
}

.nav_b .list .item:last-child span {
  transform: translateX(50%);
}

.nav_b .list .item span:before {
  content: '';
  background: url(/static/website/images/icon_faxianjingcai_train.png) center center no-repeat;
  background-size: cover;
  transform: scale(0);
  transition: all 0.5s ease-out 0s;
  position: absolute;
  top: 9px;
  left: 50%;
  margin-left: -10px;
  width: 20px;
  height: 20px;
}

.nav_b .list .item.now span:before {
  transform: none;
}

.nav_b.w .l {
  background-image: url(https://www.pku.edu.cn/Public/static/themes/image/png3a.png);
}

.nav_b.w .r {
  background-image: url(https://www.pku.edu.cn/Public/static/themes/image/png3a.png);
}

#bg-calibration {
  background-image: url(/static/website/images/png2q.png);
  background-repeat: no-repeat;
  width: 120px;
  cursor: pointer;
}

.nav_b.w {
  color: #58453b;
}

.home1 {
  background: #4c6593;
}

.home1 .title {
  width: 20%;
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  background: url(/static/website/images/pic_yyisjzuo.jpg) center center no-repeat;
  background-size: cover;
}

.home1 .title .inner {
  opacity: 0;
  transition: all 1s ease-out 0s;
  transform: scale(0.9);
  width: 100%;
  display: -ms-flexbox;
  display: flex;
  -ms-flex-align: center;
  align-items: center;
  -ms-flex-pack: center;
  justify-content: center;
}

.home1.showdiv .title .inner {
  opacity: 1;
  transform: scale(1);
}

.home1 .content {
  width: 80%;
  position: absolute;
  right: 0;
  top: 0;
  bottom: 0;
  background: url(/static/website/images/pic_yyisjyou.jpg) center center no-repeat;

  background-size: cover;
}

.home1 .tr {
  display: -ms-flexbox;
  display: flex;
  height: 25%;
}

.home1 .tr .td {
  -ms-flex: 1;
  flex: 1;
  color: #fff;
  text-align: center;
  opacity: 0;
  transition: all 1s ease-out 0s;
  transform: scaleX(0);
}

.home1.showdiv .tr .td {
  opacity: 1;
  transform: none;
}

.home1 .tr .td .inner {
  height: 100%;
  display: -ms-flexbox;
  display: flex;
  -ms-flex-align: center;
  align-items: center;
  -ms-flex-pack: center;
  justify-content: center;
  -ms-flex-direction: column;
  flex-direction: column;
  transform: rotateY(-180deg);
  transition: all 3s cubic-bezier(0.3, 0, 0.7, 1) 0s;
  backface-visibility: hidden;
}

.home1.showdiv .tr .td .inner {
  transform: none;
}

.home1 .tr .td strong {
  font-size: 50px;
  font-family: Impact;
  line-height: 1;
  display: -ms-flexbox;
  display: flex;
  -ms-flex-pack: center;
  justify-content: center;
  perspective: 10vw;
}

.home1 .tr .td i {
  font-style: normal;
}

.home1.showdiv .tr .td.s strong i {
  animation: td1 2.5s ease-in-out 0s 1 both;
  display: block;
  transform-style: preserve-3d;
}

.home1 .tr .td.s strong i:nth-child(2) {
  animation-delay: 0.2s;
}

.home1 .tr .td.s strong i:nth-child(3) {
  animation-delay: 0.4s;
}

.home1 .tr .td.s strong i:nth-child(4) {
  animation-delay: 0.6s;
}

.home1 .tr .td span {
  font-size: 18px;
}

.home1 .tr .td1 {
  background: #6780ad;
}

.home1 .tr .td2 {
  background: #4b6695;
}

.home1 .tr .td3 {
  background: #385284;
}

.home1 .tr .td4 {
  background: #445d8c;
}

.home1 .tr .td5 {
  background: #5b75a3;
}

.home1 .tr .td6 {
  background: #405a89;
}

.home1 .tr .td7 {
  background: #4b6695;
}

.home1 .tr .td8 {
  background: #5772a1;
}

.home1 .tr .td9 {
  background: rgba(12, 38, 90, 0.3);
}

.home1.showdiv .tr .td9 {
  animation: td 4s ease-out 0s infinite;
}

.home1 .tr .td10 {
  background: #2f497a;
}

.home1 .tr .td11 {
  background: #3a578a;
}

.home1 .tr .td12 {
  background: rgba(12, 38, 90, 0.3);
}

.home1.showdiv .tr .td12 {
  animation: td 3s ease-out 0s infinite;
}

.home1 .tr .td13 {
  background: rgba(12, 38, 80, 0.3);
}

.home1.showdiv .tr .td13 {
  animation: td 4s ease-out 0s infinite;
}

.home1 .tr .td14 {
  background: #6780ad;
}

.home1 .tr .td15 {
  background: #355081;
}

.home1 .tr .td16 {
  background: rgba(58, 90, 140, 0.15);
}

.home1.showdiv .tr .td16 {
  animation: td 4s ease-out 0s infinite;
}

.home1 .tr .td17 {
  background: #5b75a3;
}

.home1 .tr .td18 {
  background: #2f497a;
}

.home1 .tr .td19 {
  background: #5b75a3;
}

.home1 .tr .td20 {
  background: #314b7d;
}

.home1 .tr .td21 {
  background: #466193;
}

.home1 .tr .td22 {
  background: rgba(15, 50, 110, 0.3);
}

.home1.showdiv .tr .td22 {
  animation: td 4s ease-out 0s infinite;
}

.home1 .tr .td23 {
  background: #445d8c;
}

.home1 .tr .td24 {
  background: #395486;
  position: relative;
}

.home1 .last {
  position: absolute;
  right: 40px;
  bottom: 40px;
  font-size: 14px;
  color: #fff;
}

@-webkit-keyframes td {
  0% {
    opacity: 1;
  }

  25% {
    opacity: 0;
  }

  50% {
    opacity: 1;
  }

  100% {
    opacity: 1;
  }
}

@keyframes td {
  0% {
    opacity: 1;
  }

  25% {
    opacity: 0;
  }

  50% {
    opacity: 1;
  }

  100% {
    opacity: 1;
  }
}

@-webkit-keyframes td1 {
  0% {
    -webkit-transform: rotateX(0deg);
  }

  100% {
    -webkit-transform: rotateX(360deg);
  }
}

@keyframes td1 {
  0% {
    transform: rotateX(0deg);
  }

  100% {
    transform: rotateX(360deg);
  }
}

.home2 {
  background: #fff;
}

.home2 .bg {
  background: url(/static/website/images/bg_faxianjingcai_dashiji.jpg) center center no-repeat;
  position: absolute;
  left: 0;
  top: 0;
  width: 100%;
  height: 100%;
  transform: translateX(50px);
  transition: all 3s ease-out 0s;
  opacity: 0;
}

.home2.showdiv .bg {
  transform: none;
  opacity: 1;
}

.home2 .title {
  width: 25%;
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  background-size: cover;
  color: #333;
}

.home2 .title .inner {
  opacity: 0;
  transition: all 1s ease-out 0s;
  transform: scale(0.9);
  width: 100%;
  display: -ms-flexbox;
  display: flex;
  -ms-flex-align: center;
  align-items: center;
  -ms-flex-pack: center;
  justify-content: center;
}

.home2.showdiv .title .inner {
  opacity: 1;
  transform: scale(1);
}

.home2 .list {
  position: absolute;
  left: 25%;
  top: 50%;
  transform: translateY(-50%);
  color: #3d2f28;
  text-align: left;
  width: 25%;
  margin-top: -50px;
  opacity: 0;
  padding-top: 13px;
}

.home2 .list .inner {
  height: 100%;
  height: 415px;
  font-size: 0;
  white-space: nowrap;
}

.home2.showdiv .list {
  margin-top: 0;
  opacity: 1;
  transition: margin 1s ease-out 1.2s, opacity 1s ease-out 1.2s;
}

.home2 .list .item {
  cursor: pointer;
  position: relative;
  padding: 0 15px 0px 15px;
  writing-mode: tb-lr;
  writing-mode: vertical-lr;
  -webkit-writing-mode: vertical-lr;
  height: 100%;
  display: inline-block;
  white-space: normal;
}

.home2 .list .item:first-child {
  margin-left: 0;
}

.home2 .list .item .h {
  font-size: 20px;
  opacity: 0.5;
  line-height: 1;
}

.home2 .list .item.now .h {
  opacity: 1;
}

.home2 .list .item .p {
  margin-left: 20px;
  display: none;
  font-size: 14px;
}

.home2 .list .item.now .p {
  display: block;
}

.home2 .pic {
  position: absolute;
  left: 50%;
  margin-left: 40px;
  top: 50%;
  transform: translateY(-50%);
  height: 540px;
  width: 670px;
  max-width: 45%;
}

.home2 .pic .d {
  position: absolute;
  left: 0;
  top: 0;
  width: 100%;
  height: 100%;
  opacity: 0;
}

.home2 .pic .d.s {
  opacity: 1;
}

.home2 .pic .p1 {
  position: absolute;
  left: 0;
  bottom: 0;
  width: 50%;
  opacity: 0;
  transform: translate(-30px, 30px);
  opacity: 0;
}

.home2 .pic .p2 {
  position: absolute;
  right: 0;
  top: 0;
  width: 80%;
  opacity: 0;
  transform: translate(30px, -30px);
  opacity: 0;
}

.home2 .pic .more {
  position: absolute;
  right: 0;
  bottom: 0;
  opacity: 0;
}

.home2.showdiv .pic .p1 {
  transform: none;
  opacity: 1;
  transition: all 1s ease-out 1.2s;
}

.home2.showdiv .pic .p2 {
  transform: none;
  opacity: 1;
  transition: all 1s ease-out 1.2s;
}

.home2.showdiv .pic .more {
  opacity: 1;
  transition: all 1s ease-out 1.2s;
}

.home2 .mCSB_scrollTools.mCSB_scrollTools_horizontal .mCSB_dragger .mCSB_dragger_bar {
  background: url(https://www.pku.edu.cn/Public/static/themes/image/png10.png) center center no-repeat;
  width: 40px;
  height: 40px;
  margin-top: -12px;
}

.home2 .mCSB_scrollTools .mCSB_draggerRail {
  background: #7b625e;
  height: 1px;
}

.home2 .mCSB_scrollTools.mCSB_scrollTools_horizontal {
  top: -28px;
  bottom: auto;
}

.home4 .title {
  width: 20%;
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  background: url(/static/website/images/pic_dtys.jpg) center center no-repeat;
  background-size: cover;
}

.home4 .title .inner {
  opacity: 0;
  transition: all 1s ease-out 0s;
  transform: scale(0.9);
  width: 100%;
  display: -ms-flexbox;
  display: flex;
  -ms-flex-align: center;
  align-items: center;
  -ms-flex-pack: center;
  justify-content: center;
}

.home4.showdiv .title .inner {
  opacity: 1;
  transform: scale(1);
}

.home4 .content {
  position: absolute;
  left: 20%;
  top: 0;
  right: 0;
  bottom: 0;
  background: url(/static/website/images/pic_dtys_you.jpg) center center;
  border-left: 1px solid #433b3b;
}

.home4 .content .d {
  transition: all 1s ease-out 0s;
  opacity: 0;
}

.home4.showdiv .content .d {
  opacity: 1;
}

.home4 .content .d .pic {
  overflow: hidden;
}

.home4 .content .d .pic span {
  display: block;
  height: 100%;
  transition: all 1.8s ease-out 0s;
  transform: scale(1.2);
}

.home4.showdiv .content .d .pic span {
  transform: none;
}

.home4 .content .tit {
  font-size: 24px;
}

.home4 .content .tit a {
  display: block;
  height: 30px;
  display: -ms-flexbox;
  /* display: flex; */
  /* -ms-flex-align: center; */
  align-items: center;
  -ms-flex-pack: center;
  justify-content: center;
  text-align: center;
  color: #fff;
  margin-top: 10px;
}

.home4 .content .tit a:hover {
  color: #cdb1b1;
}

.home4 .content .d1 {
  position: absolute;
  left: 0;
  top: 0;
  width: 40%;
  height: 50%;
}

.home4 .content .d1 .pic {
  height: 100%;
}

.home4 .content .d1 .pic span {
  background: url(http://www.sz-mtr.com/upload/pic/20210622104050_a4.jpg) center center no-repeat;
  background-size: cover;
}

.home4 .content .d1 .tit {
  position: absolute;
  right: 0;
  bottom: 0;
  width: 50%;
  height: 50%;
  background: url(https://www.pku.edu.cn/Public/static/themes/image/png19.png);
}

.home4 .content .d2 {
  position: absolute;
  left: 40%;
  top: 0;
  width: 40%;
  height: 50%;
}

.home4 .content .d2 .pic {
  position: absolute;
  right: 0;
  top: 0;
  width: 100%;
  height: 100%;
}

.home4 .content .d2 .pic span {
  background: url(http://www.sz-mtr.com/upload/pic/20210622103726_k3.jpg) center center no-repeat;
  background-size: cover;
}

.home4 .content .d2 .tit {
  position: absolute;
  left: 0;
  bottom: 0;
  width: 50%;
  height: 50%;
  background: rgb(66 61 62 / 73%);
}

.home4 .content .d3 {
  position: absolute;
  left: 80%;
  top: 0;
  width: 20%;
  height: 50%;
  background: url(http://www.sz-mtr.com/upload/pic/20210622102158_huguangshanse2.jpg) center center no-repeat;
  background-size: cover;
}

.home4 .content .d3 .pic {
  position: absolute;
  left: 0;
  bottom: 0;
  width: 100%;
  height: 50%;
}

.home4 .content .d3 .pic span {
  /* background: url(http://www.sz-mtr.com/upload/pic/20210622102158_huguangshanse2.jpg) center center no-repeat;
  background-size: cover; */
}

.home4 .content .d4 {
  position: absolute;
  left: 0;
  top: 50%;
  width: 20%;
  height: 50%;
  background: url(http://www.sz-mtr.com/upload/pic/20180709110020_IMG_7404.JPG) center center no-repeat;
  background-size: cover;
}

.home4 .content .d4 .tit {
  position: absolute;
  left: 0;
  top: 0;
  background: rgb(66 61 62 / 73%);
  width: 94%;
  height: 50%;
}

.home4 .content .d4 .pic {
  position: absolute;
  left: 0;
  bottom: 0;
  width: 100%;
  height: 50%;
}

.home4 .content .d4 .pic span {
  background: url(https://www.pku.edu.cn/Public/static/themes/image/pic38.jpg) center center no-repeat;
  background-size: cover;
}

.home4 .content .d5 {
  position: absolute;
  left: 20%;
  top: 50%;
  width: 40%;
  height: 50%;
}

.home4 .content .d5 .pic {
  height: 100%;
}

.home4 .content .d5 .pic span {
  background: url(http://www.sz-mtr.com/upload/pic/20180709105934_IMG_7452.JPG) center center no-repeat;
  background-size: cover;
}

.home4 .content .d5 .tit {
  position: absolute;
  left: 0;
  bottom: 0;
  width: 50%;
  height: 50%;
  background: url(https://www.pku.edu.cn/Public/static/themes/image/png19.png);
}

.home4 .content .d6 {
  position: absolute;
  left: 60%;
  top: 50%;
  width: 40%;
  height: 25%;
}

.home4 .content .d6 .pic {
  height: 100%;
}

.home4 .content .d6 .pic span {
  background: url(http://www.sz-mtr.com/upload/pic/20210622102618_j2.jpg) center center no-repeat;
  background-size: cover;
}

.home4 .content .d6 .tit {
  position: absolute;
  left: 0;
  top: 0;
  width: 50%;
  height: 100%;
  background: url(https://www.pku.edu.cn/Public/static/themes/image/png19.png);
}

.home4 .content .d7 {
  position: absolute;
  left: 60%;
  top: 75%;
  width: 40%;
  height: 25%;
}

.home4 .content .d7 .pic {
  position: absolute;
  left: 0;
  bottom: 0;
  width: 50%;
  height: 100%;
}

.home4 .content .d7 .pic span {
  background: url(http://www.sz-mtr.com/upload/pic/20210622104135_g1.jpg) center center no-repeat;
  background-size: cover;
}

.home4 .rb {
  position: absolute;
  top: 50%;
  margin-top: -85px;
  right: -85px;
  color: #fff;
  cursor: pointer;
  transition: all 1s ease-out 0.5s;
  opacity: 0;
  width: 170px;
  height: 170px;
  border-radius: 100%;
  background: #94070a;
  transform: scale(0);
}

.home4.showdiv .rb {
  right: -85px;
  opacity: 1;
  transform: none;
}

/*.home4 .rb:before{content:"";background:url(/Public/static/themes/image/png25.png) center center no-repeat;width:97px;height:91px;position: absolute;left:-20px;top:10px;transform:scale(0.6);transition:all 1s ease-out 1.6s;opacity:0;}
.home4 .rb:after{content:"";background:url(/Public/static/themes/image/png26.png) center center no-repeat;width:78px;height:88px;position: absolute;left:15px;top:80px;transform:scale(0.6);transition:all 1s ease-out 2.8s;opacity:0;}
*/
.home4 .rb i {
  background: url(/images/png23.png) center center no-repeat;
  width: 36px;
  height: 100%;
  display: block;
  margin-left: 20px;
  position: relative;
  opacity: 0;
  z-index: 1;
}

.home4.showdiv .rb i {
  margin-left: 40px;
  opacity: 1;
  transition: all 1s ease-out 4s;
}

.home4.showdiv .rb:before {
  content: '';
  opacity: 1;
  transform: none;
}

.home4.showdiv .rb:after {
  content: '';
  opacity: 1;
  transform: none;
}

.pr {
  position: relative;
}
.warper {
  max-width: 1300px;
  margin: 0 auto;
}

.about-main2 {
  height: 890px;
  width: 100%;
  overflow: hidden;
}
.about-main2 .licheng-bg {
  width: 100%;
  height: 100%;
  position: relative;
}
.about-main2 .licheng-bg .warper {
  height: 100%;
}
.about-main2 .licheng-bg img {
  height: 518px;
  position: absolute;
  bottom: 0px;
  left: 0;
}
.about-main2 .ny-title {
  padding-top: 80px;
}
.ny-title .title-en {
  font-size: 36px;
  color: #b4b4b4;
  font-family: arial;
  line-height: 36px;
  font-weight: normal;
}
.ny-title .title-ch {
  font-size: 26px;
  color: #333333;
  margin: 15px 0;
  font-weight: normal;
}
.ny-title i {
  display: block;
  width: 42px;
  height: 1px;
  background-color: #b5b5b5;
}
.about-main2 .licheng-content {
  position: absolute;
  width: 100%;
  height: 100%;
}
.about-main2 .licheng-content .swiper-wrapper,
.about-main2 .licheng-content .swiper-slide,
.about-main2 .licheng-content ul {
  width: 100%;
  height: 100%;
}
.about-main2 .licheng-content ul li {
  width: 10%;
  float: left;
  height: 100%;
}
.about-main2 .licheng-content ul li a {
  display: block;
  width: 100%;
  position: relative;
  height: 320px;
}
.about-main2 .licheng-content ul li .date {
  color: #0a3875;
  font-size: 30px;
}
.about-main2 .licheng-content ul li.item1 .line,
.about-main2 .licheng-content ul li.item3 .line,
.about-main2 .licheng-content ul li.item5 .line {
  margin-bottom: 30px;
}
.about-main2 .licheng-content ul li.item2 .line,
.about-main2 .licheng-content ul li.item4 .line {
  margin-top: 30px;
}
.about-main2 .licheng-content ul li.item1 .line:after,
.about-main2 .licheng-content ul li.item3 .line:after,
.about-main2 .licheng-content ul li.item5 .line:after {
  width: 25px;
  height: 25px;
  background-color: rgba(10, 56, 117, 0.8);
  display: block;
  content: '';
  border-radius: 50%;
  text-align: center;
  vertical-align: middle;
  position: absolute;
}
.about-main2 .licheng-content ul li.item2 .line:before,
.about-main2 .licheng-content ul li.item4 .line:before {
  width: 25px;
  height: 25px;
  background-color: rgba(10, 56, 117, 0.8);
  display: block;
  content: '';
  border-radius: 50%;
  text-align: center;
  vertical-align: middle;
  position: absolute;
}
.about-main2 .licheng-content ul li .lc-left {
  position: absolute;
}
.about-main2 .licheng-content ul li .line {
  height: 250px;
  width: 1px;
  display: block;
  background-color: #0a3875;
  position: relative;
  left: 30px;
}
.about-main2 .licheng-content ul li .lc-right {
  position: absolute;
  left: 30px;
  width: 400px;
  height: 100%;
  display: table;
}
.about-main2 .licheng-content ul li.item5 .lc-right {
  width: 200px;
}
.about-main2 .licheng-content ul li.item2 .lc-right,
.about-main2 .licheng-content ul li.item4 .lc-right {
  width: 400px;
}
.about-main2 .licheng-content ul li .lc-right .right-text {
  padding: 20px;
  display: table-cell;
  vertical-align: middle;
}
.about-main2 .licheng-content ul li.item1 a {
  top: 50px;
}
.about-main2 .licheng-content ul li.item1 .lc-left .line:after {
  bottom: -25px;
  left: -11px;
}
.about-main2 .licheng-content ul li.item1 .lc-right {
  bottom: 68px;
}
.about-main2 .licheng-content ul li.item2 a {
  top: 258px;
}
.about-main2 .licheng-content ul li.item2 .lc-left .line:before {
  top: -25px;
  left: -11px;
}
.about-main2 .licheng-content ul li.item2 .lc-right {
  top: 80px;
}
.about-main2 .licheng-content ul li.item3 a {
  top: 136px;
}
.about-main2 .licheng-content ul li.item3 .lc-left .line:after {
  bottom: -25px;
  left: -11px;
}
.about-main2 .licheng-content ul li.item3 .lc-right {
  bottom: 100px;
}
.about-main2 .licheng-content ul li.item4 a {
  top: 278px;
}
.about-main2 .licheng-content ul li.item4 .lc-left .line:before {
  top: -25px;
  left: -11px;
}
.about-main2 .licheng-content ul li.item4 .lc-right {
  top: 70px;
}
.about-main2 .licheng-content ul li.item5 a {
  top: 85px;
  left: 25px;
}
.about-main2 .licheng-content ul li.item5 .lc-left .line:after {
  bottom: -25px;
  left: -11px;
}
.about-main2 .licheng-content ul li.item5 .lc-right {
  bottom: 100px;
}
.about-main2 .licheng-content .right-text h3 {
  font-size: 24px;
  margin-bottom: 10px;
}
.about-main2 .licheng-content .right-text p {
  font-size: 26px;
}
.lc-swiper-btn {
  width: 100%;
  position: absolute;
  top: 370px;
}
.lc-swiper-btn a {
  display: block;
  position: absolute;
}
.lc-swiper-btn .btn-prev {
  position: absolute;
  left: 15px;
  top: 50px;
}
.lc-swiper-btn .btn-next {
  position: absolute;
  right: 0;
  top: 50px;
}
.lc-swiper-btn .iconfont {
  font-size: 30px;
}
.swiper-none {
  display: none;
}
.active-dis {
  display: block;
}

.tit_span {
  display: block;
  width: 100%;
  text-align: center;
  font-size: 14px;
  color: rgb(189, 154, 154);
  margin-top: 5px;
}
.tit_line {
  display: block;
  height: 2px;
  width: 100%;
  background-color: rgb(189, 154, 154);
  margin-top: 8px;
}
.tit {
  padding: 0px 10px 0px 10px;
}
.tit_introduce {
  height: 140px;
  width: 100%;
  line-height: 28px;
  overflow: hidden;
  text-overflow: ellipsis;
  display: -webkit-box;
  -webkit-line-clamp: 5;
  -webkit-box-orient: vertical;
  color: rgb(255 255 255 / 41%);
  font-size: 16px;
}
.home4 .content .d3 .tit {
  position: absolute;
  left: 0;
  bottom: 0;
  width: 94%;
  height: 100%;
  background: rgb(66 61 62 / 73%);
}
.home4 .content .d .pic span {
  height: ;
}
.home4 .content .d7 .tie {
  float: right;
  width: 45%;
}