html,
body {
  position: relative;
  background: #fff;
}

.swiper-container {
  width: 100%;
  height: 100%;
}

.swiper-slide {
  overflow: hidden;
  transform-origin: 0 0;
}

/* banner */
.banner {
  position: relative;
  z-index: 10;
}
.btn-prev {
  position: absolute;
  z-index: 20;
  left: 7.4vw;
  top: 30vw;
}
.btn-next {
  position: absolute;
  z-index: 20;
  left: 10.4vw;
  top: 30vw;
  cursor: pointer;
}
.btn-prev img,
.btn-next img {
  width: 2.8vw;
}
.banner .swiper-slide i {
  position: relative;
  z-index: 5;
  display: block;
  overflow: hidden;
}
.banner .swiper-slide i img {
  width: 100%;
  transition: 1s 1s;
}

.banner-font {
  position: absolute;
  z-index: 5;
  left: 0;
  top: 0;
  width: 100%;
  opacity: 0;
  transform: translate3d(50%, 0, 0);
  transition: 1s 1s;
}

.banner-seed {
  position: absolute;
  z-index: 50;
  right: 5vw;
  bottom: 5vw;
}
.banner-seed img {
  width: 8vw;
}

.banner .swiper-slide-active .banner-font {
  opacity: 1;
  transform: translate3d(0, 0, 0);
}
.banner .swiper-slide-active i img {
  transform: matrix(1.1, 0, 0, 1.1, 0, 0);
}

.bg {
  background: #fff url(../images/bg.jpg) no-repeat center 0/100%;
}

/* 第1部分 */

.part1 {
  position: relative;
}

.part1-nav {
  padding: 5.5vw 0;
}
.part1-nav ul {
  display: flex;
  width: 62.5vw;
  margin: 0 auto;
}
.part1-nav ul li {
  width: 20%;
  border-left: 1px solid #e7e7e7;
}
.part1-nav ul li:nth-child(1) {
  border-left: 0;
}
.part1-nav ul a {
  display: block;
  text-align: center;
  transition: 0.3s;
}
.part1-li-icon {
  overflow: hidden;
}
.part1-li-icon img {
  width: 2.4vw;
}
.part1-li-name {
  margin: 1.2vw 0 0;
}
.part1-li-name .ch {
  font-size: 0.9vw;
  line-height: 1.2vw;
  color: #333;
}
.part1-li-name .en {
  font-size: 12px;
  line-height: 16px;
  color: #999;
  text-transform: uppercase;
}
.part1-nav ul a:hover {
  transform: translate3d(0, -1vw, 0);
}

.part1-box {
  position: relative;
  padding-top: 5vw;
  padding-left: 28vw;
}
.part1-left {
  position: absolute;
  z-index: 5;
  left: 0;
  top: 0;
}
.part1-left img {
  width: 44.6vw;
}

.part1-right {
  position: relative;
  z-index: 1;
  padding: 0 14vw 4vw 20vw;
  background: #f4f4f4;
}
.part1-en {
  position: absolute;
  z-index: 1;
  left: 20vw;
  top: -5vw;
}

.part1-name {
  position: relative;
  z-index: 10;
  padding: 6vw 0 2vw;
}
.part1-name .ch {
  font-size: 1.2vw;
  line-height: 1.5vw;
  color: #333;
}
.part1-name .en {
  font-size: 12px;
  line-height: 18px;
  color: #666;
  text-transform: uppercase;
}
.part1-p {
  position: relative;
  z-index: 10;
  height: 8vw;
  overflow: hidden;
  font-size: 0.8vw;
  line-height: 1.6vw;
  color: #333;
}
.part1-more {
  margin: 2vw 0 0;
}
.part1-more a {
  display: block;
  padding-left: 1.2vw;
  font-size: 14px;
  line-height: 1.2vw;
  color: #01883d;
  background: url(../images/more_arrow.png) no-repeat 0 center/0.9vw;
  transition: 0.3s;
}
.part1-more a:hover {
  transform: translate3d(-0.5vw, 0, 0);
}

/* 第2部分 */

.part2 {
  position: relative;
  padding: 0 0 7.2vw;
}

.part2-top {
  width: 68.24vw;
  margin: 0 auto;
  padding: 5vw 0;
}

.part2-name {
  margin: 0 0 1.5vw;
  font-size: 0.9vw;
  line-height: 1.2vw;
  color: #333;
}
.part2-ad {
  font-weight: bold;
  font-size: 2.4vw;
  line-height: 3vw;
  color: #333;
}

.part2-box {
  position: relative;
  height: 21vw;
  overflow: hidden;
}

.part2-box ul {
  display: flex;
  position: absolute;
  left: 0;
  top: 0;
}
.part2-box ul li {
  width: 24vw;
  padding: 0 1vw;
}
.part2-box ul a {
  display: block;
}
.part2-li-img {
  position: relative;
  overflow: hidden;
}
.part2-li-img i {
  display: block;
}
.part2-li-img i img {
  width: 100%;
}
.part2-li-layer {
  display: flex;
  align-items: flex-end;
  justify-content: center;
  position: absolute;
  z-index: 10;
  left: 0;
  bottom: 0;
  width: 100%;
  height: 100%;
  padding: 2vw;
  background: url(../images/atlas_li_layer.png) no-repeat center bottom/cover;
  opacity: 0;
  transform: translate3d(0, 100%, 0);
  transition: 0.3s;
}
.part2-li-layer img {
  width: 11.2vw;
}
.part2-box li a:hover .part2-li-layer {
  opacity: 1;
  transform: translate3d(0, 0, 0);
}

.part2-li-bottom {
  padding: 1vw 0 0;
}
.part2-li-name {
  font-size: 0.9vw;
  line-height: 1.6vw;
  color: #333;
}
.part2-li-more {
  display: block;
  padding-left: 1.2vw;
  font-size: 14px;
  line-height: 1.2vw;
  color: #01883d;
  background: url(../images/more_arrow.png) no-repeat 0 center/0.9vw;
}

/* 第3部分 */

.part3 {
  position: relative;
  height: 46.2vw;
  padding: 10vw 0 0;
  background: url(../images/part3_bg.png) no-repeat center 0 / cover;
}

.part3-main {
  width: 68.24vw;
  margin: 0 auto;
}

.part3-name {
  margin: 0 0 1.5vw;
  font-size: 0.9vw;
  line-height: 1.2vw;
  color: #fff;
}

.part3-ad {
  font-weight: bold;
  font-size: 2.4vw;
  line-height: 3vw;
  color: #fff;
}

.part3-nav {
  width: 13.2vw;
  padding: 5vw 0 0;
}
.part3-nav ul {
  display: flex;
  flex-wrap: wrap;
}
.part3-nav ul li {
  width: 50%;
  padding: 0 2vw 2vw 0;
}
.part3-nav ul a {
  display: block;
  font-size: 0.9vw;
  line-height: 1.2vw;
  color: #fff;
}
.part3-nav ul a:hover {
  color: #01883d;
}

/* 第4部分 */

.part4 {
  position: relative;
}

.part4-main {
  display: flex;
  justify-content: space-between;
  width: 68.24vw;
  margin: 0 auto;
  padding: 2.8vw 0;
  background: url(../images/part4_bg.png) no-repeat 0 center/68.24vw;
}

.part4-left {
  width: 24vw;
  padding: 2vw 0 0;
}

.part4-name {
  margin: 0 0 1.5vw;
  font-size: 0.9vw;
  line-height: 1.2vw;
  color: #333;
}

.part4-ad {
  font-weight: bold;
  font-size: 2.4vw;
  line-height: 3vw;
  color: #333;
}

.part4-ul {
  width: 24vw;
  padding: 4vw 0 0;
}
.part4-ul ul {
  display: flex;
  flex-wrap: wrap;
}
.part4-ul ul li {
  width: 50%;
  padding: 0 2.5vw 2.5vw 0;
}
.part4-li-num {
  font-weight: bold;
  font-size: 2.4vw;
  line-height: 3vw;
  color: #01883d;
}
.part4-li-p {
  margin: 0.4vw 0 0;
  font-size: 0.8vw;
  line-height: 1.2vw;
  color: #333;
}

.part4-right {
  position: relative;
  width: 35vw;
}
.part4-map img {
  width: 100%;
}
.part4-map-font {
  position: absolute;
  left: 0;
  bottom: 7vw;
  width: 24vw;
  font-size: 0.9vw;
  line-height: 1.6vw;
  color: #fff;
  text-align: center;
  background: #01883d;
  border-radius: 0.8vw;
}