.example-box {
  padding-top: 59px;
}

.example-main {
  width: 100%;
  max-width: 1200px;
  min-height: 400px;
  margin: 0 auto;
  padding: 20px 0;
  display: block;
}

.example-appbox {
  display: none;
}

.example-head {
  width: 100%;
  display: flex;
  justify-content: space-between;
}

.left-imgbox {
  width: 85px;
  height: 30px;
  border-bottom: 1px solid rgba(0, 0, 0, .2);
}

.exam-icon {
  width: 22px;
  height: 18px;
}

.exam-pages {
  font-size: 16px;
  font-family: "PingFang SC", "Microsoft YaHei";
  font-weight: 400;
  color: rgba(102, 102, 102, 1);
}

.right-btn {
  display: inline-block;
  width: 100px;
  height: 32px;
  line-height: 32px;
  text-align: center;
  border: 1px solid rgba(24, 144, 255, 1);
  border-radius: 16px;
  font-size: 16px;
  font-family: "PingFang SC", "Microsoft YaHei";
  font-weight: 400;
  color: rgba(24, 144, 255, 1);
}

.right-btn:hover {
  background: rgba(24, 144, 255, 1);
  color: #ffffff;
}

.exam-imglist {
  width: 100%;
  margin-top: 20px;
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
}

.exam-item {
  width: calc(25% - 7px);
  height: 220px;
  margin-bottom: 9px;
  border-radius: 10px;
  overflow: hidden;
  position: relative;
  display: inline-block;
}

.video-box {
  width: 100%;
  height: 100%;
  display: inline-block;
  position: relative;
  transition: all 0.2s;
}

.video-box .play-btn {
  position: absolute;
  left: 50%;
  top: 50%;
  cursor: pointer;
  transform: translateX(-50%) translateY(-50%);
  width: 35px;
  height: 35px;
  background: rgba(0, 0, 0, .3);
  border-radius: 50%;
  border: 1px solid #fff;
  z-index: 5;
}

.video-box .play-btn::before {
  content: '';
  position: absolute;
  transform: translate(-50%, -50%);
  left: 50%;
  top: 50%;
  width: 0;
  height: 0;
  border-top: 8px solid transparent;
  border-left: 13px solid #FFF;
  border-bottom: 8px solid transparent;
}
/* .exam-item .video-box:hover {
  transform: scale(1.05);
} */

.exam-item:hover .caseimg-title {
  display: inline-block;
}

.caseimg-item {
  width: 100%;
  height: 100%;
  display: inline-block;
  object-fit: cover;
  cursor: zoom-in;
  transition: transform 0.5s ease-out;
}

.caseimg-item:hover {
  transform: scale(1.1);
}

.caseimg-title {
  position: absolute;
  bottom: 0;
  left: 0;
  cursor: pointer;
  display: none;
  width: 100%;
  height: 40px;
  background: rgba(0, 0, 0, .5);
  border-radius: 0px 0px 10px 10px;
  font-family: "PingFang SC", "Microsoft YaHei";
  color: #ffffff;
  font-size: 16px;
  text-align: center;
  line-height: 40px;
}

.caseimg-title:hover {
  background: #1890FF;
}

.model-video-box {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  background: rgba(0, 0, 0, .78);
  z-index: 1000;
}

.model-video-box .model-video {
  width: 40%;
  position: absolute;
  left: 50%;
  top: 45%;
  transform: translate(-50%, -50%);
}

.model-imagebox {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  background: rgba(0, 0, 0, .78);
  z-index: 1000;
}

.model-head {
  width: 100%;
  height: 60px;
  padding: 0 50px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  background: rgba(0, 0, 0, .7);
}

.model-pages {
  font-size: 16px;
  font-weight: 400;
  font-family: "PingFang SC", "Microsoft YaHei";
  color: rgba(255, 255, 255, .7);
}

.model-btnbox {
  display: flex;
  width: 250px;
  height: 100%;
  align-items: center;
  justify-content: space-between;
}

.link-btn {
  display: inline-block;
  width: 94px;
  height: 30px;
  line-height: 30px;
  text-align: center;
  border: 1px solid rgba(255, 255, 255, 1);
  border-radius: 15px;
  background: rgba(0, 0, 0, 0);
  font-size: 16px;
  font-family: "PingFang SC", "Microsoft YaHei";
  font-weight: 400;
  color: rgba(255, 255, 255, 1);
}

.link-btn:hover {
  background: rgba(255, 255, 255, 0.2);
}

.scale-btn {
  width: 18px;
  height: 18px;
  margin: 0 30px 0 40px;
  background: url("../../assets/img/example/fangda.png") no-repeat;
}

.scale-btn:hover {
  background: url("../../assets/img/example/fangda-hover.png") no-repeat;
}

.close-btn {
  width: 18px;
  height: 18px;
  background: url("../../assets/img/example/close-now.png") no-repeat;
}

.close-btn:hover {
  background: url("../../assets/img/example/close-hover.png") no-repeat;
}

.model-body {
  width: 100%;
  height: calc(100% - 120px);
}

.prev-btn {
  width: 40px;
  height: 40px;
  position: absolute;
  left: 40px;
  top: 50%;
  transform: translateY(-50%);
  z-index: 100;
  background: url("../../assets/img/example/prev-now.png") no-repeat;
}

.prev-btn:hover, .next-btn:hover {
  background: url("../../assets/img/example/prev-hover.png") no-repeat;
}

.main-image {
  width: calc(100% - 300px);
  max-height: calc(100% - 150px);
  position: absolute;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);
}

.next-btn {
  width: 40px;
  height: 40px;
  position: absolute;
  right: 40px;
  top: 50%;
  transform: translateY(-50%);
  z-index: 100;
  transform: rotate(180deg);
  background: url("../../assets/img/example/prev-now.png") no-repeat;
}

.model-foot {
  width: 100%;
  height: 60px;
  line-height: 60px;
  text-align: center;
  background: rgba(0, 0, 0, .7);
  font-size: 16px;
  font-family: "PingFang SC", "Microsoft YaHei";
  font-weight: 400;
  color: rgba(255, 255, 255, 1);
}