* {
  margin: 0;
  padding: 0;
}

ul,
li {
  list-style: none;
}

a {
  text-decoration: none;
}

.clear {
  clear: both;
}

body {
  font-size: 17px;
  line-height: 1.8;
}

.centeres {
  width: 1200px;
  margin: 0 auto;
  overflow: hidden;
}

.banner {
  display: block;
  width: 100%;
}

h3 {
  text-align: center;
  font-size: 30px;
  font-weight: bold;
  color: #303030;
  margin-bottom: 32px;
}

.introduction img {
  display: block;
  width: 100%;
}

.introduction h2 {
  text-align: center;
  font-size: 35px;
  font-weight: bold;
  color: #c90001;
  margin-top: -96px;
  margin-bottom: 50px;
}

.introduction p {
  text-indent: 2em;
  font-size: 20px;
  color: #333333;
  line-height: 34px;
}

.example {
  background: url(../img/exbg.jpg) no-repeat;
  background-size: auto 100%;
  background-color: #f6f7fa;
  padding: 70px 0;
}

.example p {
  text-indent: 2em;
  font-size: 18px;
  margin-bottom: 61px;
}

.example .list ul {
  display: flex;
  justify-content: space-between;
}

.example .list ul li {
  width: 24%;
  overflow: hidden;
  position: relative;
}

.example .list ul li img {
  width: 100%;
  display: block;
  transition: all 0.6s linear;
}

.example .list ul li .ongo {
  position: absolute;
  left: 0;
  bottom: -30px;
  width: 100px;
  height: 30px;
  transition: all 0.2s linear;
}

.example .list ul li:hover img:first-child {
  transform: scale(1.1);
}

.example .list ul li:hover .ongo {
  bottom: 0;
}

.programme {
  background: url(../img/probg.png) no-repeat bottom;
  background-size: auto 100%;
  padding-top: 86px;
}

.programme .title_txt {
  font-size: 14px;
  color: #303030;
  text-align: center;
}

.programme .probox {
  margin-top: 52px;
  position: relative;
  height: 600px;
}

.programme .probox .nav {
  font-size: 18px;
  position: absolute;
  top: 0;
  left: 0;
  display: flex;
}

.programme .probox .nav li {
  position: relative;
  padding: 0 17px;
  font-size: 18px;
  color: #303030;
  transition: all 0.2s linear;
}

.programme .probox .nav li::after {
  content: "";
  position: absolute;
  right: 0;
  top: 10px;
  width: 1px;
  height: 15px;
  background-color: #222222;
}

.programme .probox .nav li:first-child {
  padding-left: 0;
}

.programme .probox .nav li:last-child::after {
  content: none;
}

.programme .probox .nav .active {
  color: #c90000;
  font-weight: bold;
}

.programme .probox .btn_box {
  position: absolute;
  right: 0;
  top: 14px;
  display: flex;
}

.programme .probox .btn_box li {
  margin-left: 5px;
  width: 18px;
  height: 5px;
  background: #980909;
  opacity: 0.5;
  -webkit-transform: skew(30deg);
  transform: skew(30deg);
  transition: all 0.2s linear;
}

.programme .probox .btn_box .active {
  width: 56px;
  background: #980909;
  opacity: 0.85;
}

.programme .probox .conimg {
  position: absolute;
  top: 50px;
  left: 0;
  width: 840px;
  height: 480px;
}

.programme .probox .conimg li {
  transition: all 0.2s linear;
  display: none;
}

.programme .probox .conimg img {
  width: 100%;
  height: 100%;
}

.programme .probox .conimg .active {
  display: block;
}

.programme .probox .contxt {
  position: absolute;
  right: 0;
  top: 100px;
  width: 520px;
  height: 380px;
  background: rgba(152, 9, 9, 0.85);
  color: #ffffff;
}

.programme .probox .contxt li {
  display: none;
  padding: 80px 63px;
}

.programme .probox .contxt li p {
  margin-bottom: 28px;
  font-size: 16px;
}

.programme .probox .contxt li span {
  font-size: 30px;
  margin-right: 13px;
}

.programme .probox .contxt .active {
  display: block;
}

.nformation {
  padding: 52px 0;
  background: url(../img/nfbg.jpg) no-repeat;
  background-size: 100% 100%;
}

.nformation .centeres {
  overflow: visible;
}

.nformation .nfimg {
  float: left;
  width: 600px;
}

.nformation ul {
  float: left;
  margin-left: 58px;
  width: 540px;
}

.nformation ul li {
  margin-bottom: 27px;
}

.nformation ul li p {
  position: relative;
  display: inline-block;
  font-size: 20px;
  font-weight: 400;
  color: #000000;
  line-height: 30px;
  transition: all 0.2s linear;
}

.nformation ul li p img {
  position: absolute;
  right: -60px;
  top: 10px;
  vertical-align: middle;
  height: 12px;
  margin-left: 20px;
  display: none;
}

.nformation ul li span {
  font-size: 14px;
  font-weight: 400;
  color: #666666;
  display: block;
}

.nformation ul li:hover p {
  color: #c90000;
  font-size: 20px;
  font-weight: bold;
}

.nformation ul li:hover p img {
  display: inline-block;
}

.analysis {
  padding: 52px 0;
  background: url(../img/anbg.jpg) no-repeat;
  background-size: 100%;
}

.analysis .photos > div {
  position: relative;
  height: 312px;
  float: left;
  overflow: hidden;
  margin-bottom: 20px;
}

.analysis .photos > div img:first-child {
  width: 100%;
  height: 100%;
  transition: all 0.2s linear;
}

.analysis .photos > div i {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
}

.analysis .photos > div:nth-of-type(1) {
  width: 700px;
  margin-right: 20px;
}

.analysis .photos > div:nth-of-type(2) {
  width: 480px;
}

.analysis .photos > div:nth-of-type(3) {
  width: 480px;
}

.analysis .photos > div:nth-of-type(4) {
  margin-left: 20px;
  width: 700px;
}

.analysis .photos > div .on720 {
  display: none;
  position: absolute;
  top: 0;
  bottom: 0;
  left: 0;
  right: 0;
  margin: auto;
  width: 131px;
}

.analysis .photos > div .point {
  position: absolute;
  left: -180px;
  bottom: 15px;
  height: 53px;
  width: 180px;
  transition: all 0.2s linear;
}

.analysis .photos > div:hover img:first-child {
  transform: scale(1.1);
}

.analysis .photos > div:hover i {
  background: rgba(0, 0, 0, 0.5);
}

.analysis .photos > div:hover .on720 {
  display: block;
}

.analysis .photos > div:hover .point {
  left: 0;
}