@font-face {
  font-family: 'iconfont';  /* project id 1623830 */
  src: url('//at.alicdn.com/t/font_1623830_ris5q1as9oc.eot');
  src: url('//at.alicdn.com/t/font_1623830_ris5q1as9oc.eot?#iefix') format('embedded-opentype'),
  url('//at.alicdn.com/t/font_1623830_ris5q1as9oc.woff2') format('woff2'),
  url('//at.alicdn.com/t/font_1623830_ris5q1as9oc.woff') format('woff'),
  url('//at.alicdn.com/t/font_1623830_ris5q1as9oc.ttf') format('truetype'),
  url('//at.alicdn.com/t/font_1623830_ris5q1as9oc.svg#iconfont') format('svg');
}

body {
  font: normal 16px "Arial","Microsoft Yahei","sans-serif";
  color: #333;
}

.ui.fixed.sticky {
  background-color: #fff;
  border-bottom: solid 1px #eee;
  box-shadow: 0px 1px 2px 1px #ccc;
}

.logo {
  margin-top: 5px;
}

.logo img {
  width: 100px;
  height: 42px;
}

.container-p {
  margin: 0 auto;
  width: 1024px;
}

.nav-menu {
  display: flex;
  justify-content: space-between;
  margin-top: 10px;
  /* margin-bottom: 10px; */
}

.sub-nav {
  height: 34px;
  /* line-height: 34px; */
  width: 1024px;
  /* margin-bottom: 20px; */
}

.sub-nav-infor,
.sub-nav-program,
.sub-nav-committee {
  display: inline-block;
  padding-top: 10px;
  padding-bottom: 10px;
  height: 34px;
  line-height: 14px;
  font: normal 14px "Arial","Microsoft Yahei","sans-serif";
  visibility: hidden;

}

.sub-nav a {
  text-decoration: none;
  color: #333;
  /* display: inline-block; */
  height: 14px;
  /* visibility: hidden; */
  /* display: none; */
}

.sub-nav a:hover {
  color: #ea4a19;
  cursor: pointer;
}

#sub-tag-1,
#sub-tag-2,
#sub-tag-3 {
  margin-right: 30px;
}


#sub-tag-5,
#sub-tag-6 {
  margin-right: 30px;
}


#sub-tag-8,
#sub-tag-9 {
  margin-right: 30px;
}

.nav-tag {
  display: inline-block;
  font: normal 16px "Arial","Microsoft Yahei","sans-serif";
  /* line-height: 12px; */
  text-decoration: none;
  color: #333;
}

.nav-tag:last-child {
	/*color: #259fc8;*/
}

.nav-tag:hover {
  color: #ea4a19;
  text-decoration: underline #ea4a19;
  cursor: pointer;
}

.whole-container {
  width: 100%;
  background-color: #249fc8;
  text-align: center;
}

.bg-pic {
  padding-top: 60px;
  padding-bottom: 100px;
  background-image: url(../img/NASA_BG.jpg);
  background-repeat:no-repeat;
}

.banner {
  background-color: #249fc8;
  text-align: center;
}

.content {
  width: 1024px;
  padding: 0;
}

.content .title {
  margin-top: 60px;
  margin-bottom: 30px;
  font-size: 20px;
  font-weight: bold;
  text-align: center;
}

.pic-group {
  margin-top: 20px;
  margin-bottom: 30px;
}

.pic-row {
  display: flex;
  justify-content: space-between;
  margin-bottom: 8px;
}

.pic-row .row-main {
  width: 460px;
  height: 180px;
}

.pic-row .row-small {
  width: 180px;
  height: 180px;
}

.pic-row img {
  display: block;
  width: 100%;
  height: 100%;
}

.pic-map {
  margin-top: 20px;
}

.pic-map img {
  display: block;
  width: 1020px;
  height: 462px;
}

.footer {
  margin-top: 100px;
  width: 100%;
  height: 146px;
  background-color: #259fc8;
}

.footer-cont-region {
  width: 1024px;
  height: 146px;
  margin: 0 auto;
  background-color: #259fc8;
  display: flex;
  justify-content: space-between;
}

.foot-logo {
  margin-top: 40px;
  width: 183px;
  height: 77px;
}

.foot-logo img {
  width: 183px;
  height: 77px;
}

.foot-commit {
  margin-top: 40px;
  width: 235px;
  height: 77px;
  color: #fff;
}

.foot-commit-title,
.foot-contact-title {
  font: bold 16px "Arial","Microsoft Yahei","sans-serif";
}

.foot-commit-text {
  display: flex;
  font: normal 14px "Arial","Microsoft Yahei","sans-serif";
  margin-top: 5px;
}

.foot-contact {
  margin-top: 40px;
  width: 318px;
  height: 81px;
  color: #fff !important;
}

.foot-contact-text {
  font: normal 14px "Arial","Microsoft Yahei","sans-serif";
  margin-top: 6px;
  margin-bottom: 8px;
}

.foot-contact-link,
.foot-contact-link:link,
.foot-contact-link:visited,
.foot-contact-link:active,
.foot-contact-link:hover  {
  text-decoration: none;
}

.foot-contact-link:hover {
  cursor: pointer;
}

.foot-contact-button {
  width: 145px;
  height: 34px;
  padding: 5px 16px 5px 12px;
  border: solid 1px #fff;
}

.foot-contact-button-text {
  font: normal 14px "Microsoft Yahei";
  display: inline-block;
  margin-right: 20px;
  color: #fff !important;
}

.visit-icon {
  display: inline-block;
  font: normal 16px "iconfont";
  color: #fff !important;
  /* margin-top: 2px; */
}

.go-to-top {
  width: 50px;
  height: 40px;
  border-radius: 3px;
  background-color: #535c70;
  position: fixed;
  top: 550px;
  right: 28px;
  font: normal 20px "iconfont";
  color: #fff;
  text-align: center;
  padding-top: 8px;
  /* padding: 10px 15px 10px 15px; */
}

.go-to-top:hover {
  background-color: #444;
  cursor: pointer;
}