.head-img {
  width: 100%;
}

.head-img img {
  width: 100%;
  height: auto;
}

.head-img2 {
  display: none;
}

.head-img2 img {
  width: 100%;
  height: auto;
}

.head-imgs {
  /* width: 1200px; */
  margin: 0 auto;
  height: 260px;
}

.head-imgs ul {
  list-style: none;
  display: flex;
  justify-content: space-around;
}

.head-imgs ul li {
  width: 200px;
  text-align: center;
  margin-top: 20px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
}

.head-imgs ul li div {
  width: 200px;
  height: 165px;
}

.head-imgs ul li img {
  width: 157px;
  height: 162px;
}

.head-imgs ul li p {
  font-size: 20px;
  font-family: Microsoft YaHei;
  font-weight: 400;
  color: #333333;
  -moz-user-select: none;
  -webkit-user-select: none;
  -ms-user-select: none;
  -khtml-user-select: none;
  user-select: none;
}

.mv {
  width: 100%;
  background: #f3f8fc;
  padding: 50px 0;
}

.mv .video {
  width: 1200px;
  margin: 0 auto;
  height: 675px;
  position: relative;
}

.videoBox {
  width: 1200px;
}

.mv .video .mask {
  width: 1200px;
  height: 675px;
  background: rgba(0, 0, 0, 0.3);
  position: absolute;
  top: 0;
  left: 0;
}

.mv .video .mask.active {
  transform: scale(0);
}

.mv .video span {
  width: 134px;
  height: 134px;
  position: absolute;
  background-image: url('../images/播放/icon_播放.png');
  top: 50%;
  left: 50%;
  margin-left: -67px;
  margin-top: -67px;
}

.mv .video span.active {
  transform: scale(0);
}

.center-content {
  width: 100%;
  margin: 0 auto;
  overflow-x: hidden;
}

.center-content ul {
  list-style: none;
  width: 100%;
  height: 1680px;
}

.center-content ul li {
  width: 100%;
  height: 420px;
}

.center-content ul li:nth-child(1),
.center-content ul li:nth-child(3) {
  background-color: white;
}

.center-content ul li:nth-child(2),
.center-content ul li:nth-child(4) {
  background: #f3f8fc;
}

.center-content ul li .con {
  width: 1200px;
  height: 420px;
  margin: 0 auto;
  display: flex;
  justify-content: center;
  align-items: center;
}

.center-content ul li .con div {
  width: 50%;
}

.center-content ul li h2 {
  width: 100%;
  text-align: center;
  letter-spacing: 2px;
  font-family: Microsoft YaHei;
  font-weight: 600;
  color: #276dfa;
  -moz-user-select: none;
  -webkit-user-select: none;
  -ms-user-select: none;
  -khtml-user-select: none;
  user-select: none;
}

.center-content ul li p {
  width: 80%;
  margin: 0 auto;
  margin-top: 12px;
  font-size: 16px;
  font-family: Microsoft YaHei;
  font-weight: 600;
  color: #333333;
  -moz-user-select: none;
  -webkit-user-select: none;
  -ms-user-select: none;
  -khtml-user-select: none;
  user-select: none;
}

@keyframes left-animation {
  0% {
    transform: translateX(-2000px);
  }

  100% {
    transform: translateX(0px);
  }
}

@keyframes right-animation {
  0% {
    transform: translateX(2000px);
  }

  100% {
    transform: translateX(0px);
  }
}

.center-content ul li:nth-child(1) .con .left {
  float: left;
  transform: translateX(-2000px);
}

.center-content ul li:nth-child(1) .con .left.active {
  animation: left-animation 0.6s linear;
  transform: translateX(0px);
}

.center-content ul li:nth-child(1) .con .left img {
  width: 556px;
  height: auto;
}

.center-content ul li:nth-child(1) .con .right {
  float: left;
  transform: translateX(2000px);
}

.center-content ul li:nth-child(1) .con .right.active {
  animation: right-animation 0.6s linear;
  transform: translateX(0px);
}

.center-content ul li:nth-child(1) .con .right p {
  text-align: center;
}

.center-content ul li:nth-child(2) .con .left {
  float: left;
  transform: translateX(-2000px);
}

.center-content ul li:nth-child(2) .con .left.active {
  animation: left-animation 0.6s linear;
  transform: translateX(0px);
}

.center-content ul li:nth-child(2) .con .left p {
  text-align: center;
}

.center-content ul li:nth-child(2) .con .right {
  float: right;
  text-align: right;
  transform: translateX(2000px);
}

.center-content ul li:nth-child(2) .con .right.active {
  animation: right-animation 0.6s linear;
  transform: translateX(0px);
}

.center-content ul li:nth-child(2) .con .right img {
  width: 475px;
  height: auto;
}

.center-content ul li:nth-child(3) .con .left {
  float: left;
  transform: translateX(-2000px);
}

.center-content ul li:nth-child(3) .con .left.active {
  animation: left-animation 0.6s linear;
  transform: translateX(0px);
}

.center-content ul li:nth-child(3) .con .left img {
  width: 458px;
  height: auto;
}

.center-content ul li:nth-child(3) .con .right {
  float: left;
  transform: translateX(2000px);
}

.center-content ul li:nth-child(3) .con .right.active {
  animation: right-animation 0.6s linear;
  transform: translateX(0px);
}

.center-content ul li:nth-child(3) .con .right p {
  text-align: center;
}

.center-content ul li:nth-child(4) .con .left {
  float: left;
  transform: translateX(-2000px);
}

.center-content ul li:nth-child(4) .con .left.active {
  animation: left-animation 0.6s linear;
  transform: translateX(0px);
}

.center-content ul li:nth-child(4) .con .left p {
  text-align: left;
  margin-left: 20%;
}

.center-content ul li:nth-child(4) .con .right {
  float: right;
  text-align: right;
  transform: translateX(2000px);
}

.center-content ul li:nth-child(4) .con .right.active {
  animation: right-animation 0.6s linear;
  transform: translateX(0px);
}

.center-content ul li:nth-child(4) .con .right img {
  width: 517px;
  height: auto;
}

.center-content .company {
  width: 1200px;
  margin: 0 auto;
  text-align: center;
}

.center-content .company a {
  text-decoration: none;
  color: #c3c3c3;
  font-size: 12px;
}

.contentH5 {
  display: none;
}

@media only screen and (max-width: 768px) {
  .head-img {
    display: none;
  }

  .head-img2 {
    display: block;
  }

  .head-imgs {
    height: auto;
    padding: 10px
  }

  .head-imgs ul {
    margin: 0;
    justify-content: space-between;
  }

  .head-imgs ul li {
    margin-top: 0;
    width: 25%;
  }

  .head-imgs ul li img {
    width: 75px;
    height: 75px;
  }

  .head-imgs ul li p {
    font-size: 10px;
    margin: 0;
    padding: 0 2px;
    height: 40px;
  }
  .head-imgs ul li p span{
    display: inline-block;
    
  }

  .mv {
    padding: 18px;
    background-color: #fff;
    box-sizing: border-box;
  }

  .mv .video {
    width: 100%;
    height: auto;
  }

  .mv .video .mask {
    width: 100%;
    height: 100%;
  }

  .mv .video span {
    width: 62px;
    height: 62px;
    margin-left: -31px;
    margin-top: -31px;
    background-size: cover;
    display: none;
  }

  .videoBox {
    width: 100%;
  }

  .center-content ul li .con {
    width: 100%;
  }

  .center-content {
    display: none;
  }

  .contentH5 {
    display: block;
  }

  .width74 {
    width: 74%;
  }

  .width70 {
    width: 70%;
  }

  .width62 {
    width: 62%;
  }

  .contentH5 li {
    padding: 30px 0;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
  }

  .h5bg {
    background-color: #F3F8FC;
  }

  .contentH5Text {
    font-size: 12px;
    color: #666;
    text-align: center;
    line-height: 1.8;
  }

  .contentH5Text h2 {
    font-size: 18px;
    color: #276DFA;
    font-weight: bold;
    margin-bottom: 4px;
  }
}