.banner {
  position: relative;
  background: #000;
  margin: 0 auto;
}
.banner > a {
  display: block;
  text-align: center;
  line-height: 140px;
  position: absolute;
  z-index: 1000;
  top: 12vw;
  width: 90px;
  height: 140px;
  border-radius: 3px;
}
.banner .prev {
  left: 8.5vw;
  background: rgba(224, 224, 224, 0.65) url(../images/prev.png) no-repeat center center;
}
.banner .next {
  right: 8.5vw;
  background: rgba(224, 224, 224, 0.65) url(../images/next.png) no-repeat center center;
}
.banner .bd {
  position: relative;
  z-index: 0;
}
.banner .bd ul li img {
  width: 100%;
  vertical-align: top;
}
.banner .hd {
  width: 100%;
  position: absolute;
  left: 0;
  bottom: 10px;
  text-align: center;
  z-index: 1;
}
.banner .hd ul {
  text-align: center;
  padding-top: 5px;
}
.banner .hd ul li {
  margin: 0 6px;
  font-size: 0;
  width: 8px;
  height: 8px;
  border-radius: 4px;
  background: #ffffff;
  cursor: pointer;
  display: inline-block;
  zoom: 1;
  transition: all 0.5s linear;
  -o-transition: all 0.5s linear;
  -ms-transition: all 0.5s linear;
  -webkit-transition: all 0.5s linear;
  -moz-transition: all 0.5s linear;
}
.banner .hd ul li.on {
  width: 42px;
}
.index-1 {
  background-color: #f5f5f5;
  padding: 77px 0;
}
.index-1 .cont {
  width: 1291px;
  background-color: #fff;
  padding: 32px;
  display: -webkit-box;
  display: -webkit-flex;
  display: -ms-flexbox;
  display: flex;
}
.index-1 .cont .info {
  display: -webkit-box;
  display: -webkit-flex;
  display: -ms-flexbox;
  display: flex;
  -webkit-box-orient: vertical;
  -webkit-box-direction: normal;
  -webkit-flex-direction: column;
      -ms-flex-direction: column;
          flex-direction: column;
  -webkit-box-flex: 1;
  -webkit-flex: 1;
      -ms-flex: 1;
          flex: 1;
}
.index-1 .cont .info .desc {
  font-size: 16px;
  line-height: 2;
  margin-top: 23px;
}
.index-1 .cont .info .more-btn {
  margin-top: auto;
  color: #686666;
  width: 173px;
  height: 55px;
  line-height: 51px;
  text-align: center;
  font-size: 16px;
  border: 2px solid #b4b4b4;
}
.index-1 .cont img {
  width: 614px;
  height: 321px;
  margin-left: 64px;
}
.index-2 img,
.index-2 video {
  width: 100%;
}
.index-3 {
  background-color: #f5f5f5;
  padding: 72px 0;
}
.index-3 ul {
  display: -webkit-box;
  display: -webkit-flex;
  display: -ms-flexbox;
  display: flex;
  margin-top: 64px;
}
.index-3 ul li {
  margin-right: 10px;
  display: -webkit-box;
  display: -webkit-flex;
  display: -ms-flexbox;
  display: flex;
  -webkit-box-orient: vertical;
  -webkit-box-direction: normal;
  -webkit-flex-direction: column;
      -ms-flex-direction: column;
          flex-direction: column;
  width: 400px;
  height: 377px;
}
.index-3 ul li:last-child {
  margin-right: 0;
}
.index-3 ul li .pic {
  width: 100%;
  height: 246px;
  display: block;
  overflow: hidden;
}
.index-3 ul li .pic img {
  width: 100%;
  height: 100%;
  transition: all 0.5s linear;
  -o-transition: all 0.5s linear;
  -ms-transition: all 0.5s linear;
  -webkit-transition: all 0.5s linear;
  -moz-transition: all 0.5s linear;
}
.index-3 ul li .info {
  -webkit-box-flex: 1;
  -webkit-flex: 1;
      -ms-flex: 1;
          flex: 1;
  width: 100%;
  padding: 20px 25px;
  background-color: #fff;
  line-height: 1;
  display: -webkit-box;
  display: -webkit-flex;
  display: -ms-flexbox;
  display: flex;
  -webkit-box-orient: vertical;
  -webkit-box-direction: normal;
  -webkit-flex-direction: column;
      -ms-flex-direction: column;
          flex-direction: column;
  transition: all 0.5s linear;
  -o-transition: all 0.5s linear;
  -ms-transition: all 0.5s linear;
  -webkit-transition: all 0.5s linear;
  -moz-transition: all 0.5s linear;
}
.index-3 ul li .info span {
  color: #333;
  font-size: 16px;
  transition: all 0.5s linear;
  -o-transition: all 0.5s linear;
  -ms-transition: all 0.5s linear;
  -webkit-transition: all 0.5s linear;
  -moz-transition: all 0.5s linear;
}
.index-3 ul li .info .tit {
  display: block;
  color: #333;
  font-size: 16px;
  margin-top: 10px;
  transition: all 0.5s linear;
  -o-transition: all 0.5s linear;
  -ms-transition: all 0.5s linear;
  -webkit-transition: all 0.5s linear;
  -moz-transition: all 0.5s linear;
}
.index-3 ul li .info .more {
  width: 102px;
  height: 32px;
  color: #545454;
  margin-top: auto;
  line-height: 30px;
  text-align: center;
  border: 1px solid #b2b2b2;
  transition: all 0.5s linear;
  -o-transition: all 0.5s linear;
  -ms-transition: all 0.5s linear;
  -webkit-transition: all 0.5s linear;
  -moz-transition: all 0.5s linear;
}
.index-3 ul li:hover .pic img {
  -webkit-transform: scale(1.1);
      -ms-transform: scale(1.1);
          transform: scale(1.1);
}
.index-3 ul li:hover .info {
  background-color: #fd5615;
}
.index-3 ul li:hover .info span {
  color: #fff;
}
.index-3 ul li:hover .info .tit {
  color: #fff;
}
.index-3 ul li:hover .info a {
  color: #fff;
  border-color: #fff;
}