.video {
  width: 500px;
  height: 374px;
  margin: 10px auto;
}
.video video {
  width: 100%;
  height: 100%;
}
.wh-class-list {
  border: 1px solid #f2f2f2;
  padding: 20px;
  margin-bottom: 20px;
}
.wh-class-list > .title {
  text-align: center;
}
.wh-class-list > .content .type {
  font-size: 20px;
  margin-top: 20px;
  margin-bottom: 10px;
}
.wh-class-list > .content .whvideo-list .video-item {
  width: 250px;
}
.wh-class-list > .content .whvideo-list .video-item .video-box {
  width: 250px;
  height: 200px;
  margin-right: 15px;
}
.wh-class-list > .content .whvideo-list .video-item:nth-child(2n) {
  margin-right: 15px;
}
.img_head {
  margin: 0 auto;
  margin-bottom: 30px;
  width: 1200px;
}
.img_head .back {
  display: inline-block;
  font-weight: normal;
  margin-right: 5px;
  font-size: 14px;
  color: #72aae4;
}
.img_head .back:hover {
  text-decoration: underline;
}
.img_head .hlmodel {
  font-weight: normal;
  margin-left: 8px;
  font-size: 16px;
  color: #72aae4;
}
.hlmodel {
  cursor: pointer;
}
.wh-hlang .img-wrap {
  height: 730px;
  position: relative;
  overflow: hidden;
}
.wh-hlang .wrap {
  width: 100%;
  height: 600px;
  position: absolute;
  top: 50%;
  margin-top: -300px;
  background: #969696;
  overflow: hidden;
  perspective: 800px;
}
.wh-hlang .photo {
  width: 300px;
  user-select: none;
  position: absolute;
  user-drag: none;
  z-index: 1;
  box-shadow: 0 0 1px rgba(0, 0, 0, 0.01);
  transition: 0.6s;
  top: 0;
  left: 0;
  border-radius: 5px;
  transform: translate(-50%, -50%) scale(1);
  overflow: hidden;
}
.wh-hlang .photo .side {
  width: 100%;
  height: 100%;
  position: absolute;
  top: 0;
  right: 0;
  box-sizing: border-box;
}
.wh-hlang .photo .side-front .image {
  width: 100%;
}
.wh-hlang .photo .side-front .caption {
  text-align: center;
  font-size: 10px;
  line-height: 15px;
}
.wh-hlang .photo .side-back {
  box-sizing: border-box;
  padding: 10px;
  font-size: 12px;
  background-color: #969696;
}
.wh-hlang .photo .side-back .desc {
  width: 100%;
  margin-right: 0;
}
.wh-hlang .photo-center {
  left: 50%;
  top: 50%;
  transform-origin: 50% 50% 0;
}
.wh-hlang .photo-wrap {
  position: absolute;
  width: 100%;
  height: 100%;
  transition: 0.6s;
  transform-origin: 0% 50%;
  -webkit-transform-style: preserve-3d;
}
.wh-hlang .photo-wrap .side-front {
  transform: rotateY(0deg);
}
.wh-hlang .photo-wrap .side-back {
  transform: rotateY(180deg);
}
.wh-hlang .photo-wrap .side {
  backface-visibility: hidden;
}
.wh-hlang .photo_front .photo-wrap {
  transform: translate(0, 0) rotateY(0deg);
}
.wh-hlang .photo_back .photo-wrap {
  transform: translate(300px, 0) rotateY(180deg);
}
.wh-hlang .wrap .botton {
  width: 50px;
  height: 50px;
  background: url('../img/flash.png') no-repeat;
  background-size: 50px 50px;
  position: absolute;
  left: 50%;
  margin-left: -30px;
  bottom: 10%;
  z-index: 999;
  cursor: pointer;
}
.liaojie {
  width: 250px;
  margin: 40px auto;
  display: block;
}
/*视频介绍*/
.jieshao h2 {
  margin: 20px auto;
  font-size: 28px;
  color: #23ac38;
  text-align: center;
}
.jieshao .video {
  position: relative;
  display: none;
  width: 600px;
  height: 530px;
  background: url('../img/11.png') no-repeat;
  margin: 0 auto;
  padding-top: 50px;
}
.jieshao .video .close {
  width: 30px;
  height: 30px;
  line-height: 30px;
  position: absolute;
  top: -20px;
  right: 30px;
  font-size: 20px;
  color: white;
  cursor: pointer;
}
.jieshao video {
  display: block;
  border-radius: 25px;
  width: 520px;
  margin: 0 auto;
}
#aboutzhanzhang {
  margin-top: 20px;
  padding: 10px;
  color: 15px;
  display: block;
  text-align: center;
  border-radius: 3px;
  color: white;
  background: #449D44;
}