.main {
  width: 100%;
}
.main .banner {
  width: 100%;
  margin-top: 95px;
}
.main .banner img {
  width: 100%;
}
.main .public_tab {
  width: 60%;
  margin: 80px auto 70px;
}
.main .public_tab ul {
  display: flex;
  align-items: center;
  justify-content: center;
}
.main .public_tab ul li {
  width: 160px;
  height: 50px;
  margin-right: 10px;
  border-radius: 10px;
  box-sizing: border-box;
  border: 1px solid #e5e5e5;
  text-align: center;
  line-height: 50px;
  font-size: 18px;
  color: #7C796F;
  cursor: pointer;
}
.main .public_tab ul li a {
  display: block;
  border-radius: 10px;
}
.main .public_tab ul li:hover {
  background-color: red;
  color: #FFF;
  border: 1px solid red;
}
.main .public_tab ul .public-active {
  color: #FFF;
  background-color: red;
}
.main .college-list {
  width: 1200px;
  margin: 0 auto;
}
.main .college-list li {
  position: relative;
  float: left;
  width: 48%;
  margin-right: 30px;
  margin-bottom: 60px;
  box-sizing: border-box;
  cursor: pointer;
}
.main .college-list li img {
  display: block;
  width: 100%;
  height: auto;
}
.main .college-list li .college-title {
  float: left;
  width: 100%;
  padding-bottom: 28px;
  border-bottom: 1px solid #e5e5e5;
}
.main .college-list li .college-title .name {
  padding: 20px;
  font-size: 20px;
  color: #333;
  line-height: 20px;
}
.main .college-list li .college-title span {
  display: block;
  font-size: 14px;
  color: #666;
  line-height: 14px;
  padding-left: 20px;
}
.main .college-list li .college-title span .icon {
  float: left;
  width: 20px;
  height: 12px;
  margin-right: 10px;
  vertical-align: sub;
  background: url("../../img/video/icon1.png") no-repeat center;
  background-size: 100% auto;
}
.main .college-list li:nth-child(2n) {
  margin-right: 0;
}
.main .college-list li .bottom-float {
  position: absolute;
  bottom: -113px;
  left: 0;
  z-index: 2;
  display: none;
  height: 113px;
  width: 100%;
  background-color: #bf201b;
}
.main .college-list li .bottom-float .name {
  padding: 20px;
  font-size: 20px;
  color: #fff;
  line-height: 20px;
}
.main .college-list li .bottom-float span {
  display: block;
  font-size: 14px;
  color: #fff;
  line-height: 14px;
  padding-left: 20px;
}
.main .college-list li .bottom-float span .icon {
  float: left;
  width: 20px;
  height: 12px;
  margin-right: 10px;
  vertical-align: sub;
  background: url("../../img/video/icon1.png") no-repeat center;
  background-size: 100% auto;
}
.main .college-list li .bottom-float img {
  position: absolute;
  right: 20px;
  top: 31px;
  width: 50px;
  height: 50px;
}
.main .college-list li .pupob-video {
  position: fixed;
  top: 90px;
  left: 0;
  z-index: 30;
  width: 100%;
  height: 100%;
  background-color: #000000;
  display: none;
}
.main .college-list li .pupob-video .pupub-content {
  position: relative;
  width: 1200px;
  height: 600px;
  margin: 10% auto 0;
}
.main .college-list li .pupob-video .pupub-content video {
  width: 100%;
  height: 400px;
}
.main .college-list li .pupob-video .pupub-content img {
  position: absolute;
  top: -25px;
  right: -25px;
  width: 55px;
  height: 55px;
}