* {
  padding: 0;
  margin: 0;
  box-sizing: border-box;
}
body {
  font-family: Helvetica Neue, Helvetica, Arial, sans-serif;
  font-size: 14px;
  color: #000;
  min-width: 1600px;
}
img {
  vertical-align: middle;
}
a {
  color: #666;
  text-decoration: none;
}
.header_box {
  position: sticky;
  top: 0;
  z-index: 10;
  background: rgba(30, 200, 180, 0.7);
  height: 100px;
  min-width: 100%;
}
.header_box .header {
  height: 100%;
  margin: 0 auto;
  width: 1600px;
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.header_box .header img {
  height: 75px;
}
.header_box .header .ul_box {
  height: 100%;
  display: flex;
  align-items: center;
  color: #fff;
  font-size: 26px;
}
.header_box .header .ul_box a {
  display: inline-block;
  height: 100%;
  padding: 0 20px;
  padding-top: 40px;
  cursor: pointer;
  color: #fff;
}
.header_box .header .ul_box .act {
  background: #1ec8b4;
}
.nav_box {
  position: relative;
}
.nav_box .nav_bg {
  width: 100%;
}
.nav_box .nav_hai {
  position: absolute;
  right: 5%;
  bottom: -100px;
  width: 32%;
}
.video_box {
  background: #f1f1f1;
  color: #3D8F89;
  padding: 120px 0;
}
.video_box .video {
  width: 1440px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.video_box .video .video_title_box {
  width: 60%;
  padding: 0 20px;
  font-size: 26px;
  line-height: 42px;
  text-align: justify;
  letter-spacing: 3px;
}
.video_box .video .video_title_box span {
  color: #EC8E25;
}
.video_box .video .video_title {
  margin-bottom: 40px;
}
.video_box .video_kuang {
  width: 40%;
  background: #3D8F89;
  height: 324px;
  display: flex;
  justify-content: center;
  align-items: center;
}
.video_vvv {
  display: flex;
  margin: 50px auto;
  width: 1440px;
  flex-wrap: wrap;
  justify-content: space-between;
}
.video_vvv .video_tt {
  text-align: left;
  font-size: 20px;
  margin-top: 5px;
  margin-bottom: 20px;
}
.zhuti {
  padding: 100px 0;
}
.zhuti .zhuti_title {
  text-align: center;
  color: #3D8F89;
  font-size: 30px;
  margin-bottom: 50px;
}
.zhuti .swiper-container {
  width: 1440px;
  height: 375px;
  margin: 20px auto;
}
.zhuti .swiper-slide {
  text-align: center;
  font-size: 18px;
  cursor: pointer;
  display: flex;
  justify-content: center;
  align-items: center;
  overflow: hidden;
}
.zhuti .swiper-slide img {
  width: 100%;
}
.zhuti .swiper-slide .slide_img {
  transition: all 0.5s;
  position: absolute;
  top: 100%;
  left: 0;
  background: rgba(0, 0, 0, 0.5);
  width: 100%;
  height: 100%;
  display: flex;
  justify-content: center;
  align-items: center;
  color: #fff;
  border-radius: 10px;
}
.zhuti .swiper-slide .slide_img img {
  width: 100px;
  margin-bottom: 10px;
}
.zhuti .swiper-slide:hover .slide_img {
  transition: all 0.5s;
  top: 0;
}
.zhuti .swiper-pagination-bullet-active {
  background: #3D8F89;
}
.zhuti .swiper-button-next {
  width: 45px;
  height: 45px;
  right: 0;
  background: url("../img/you.png") no-repeat center / 100%;
}
.zhuti .swiper-button-prev {
  width: 45px;
  height: 45px;
  left: 0;
  background: url("../img/zuo.png") no-repeat center / 100%;
}
.ping {
  background: #f1f1f1;
}
.butong_box {
  background: #f1f1f1;
}
.butong_box .butong {
  width: 1440px;
  margin: 0 auto;
  text-align: center;
  padding: 100px 0;
}
.butong_box .butong .butong_zi {
  font-size: 26px;
  padding: 20px 100px;
  line-height: 40px;
  text-align: left;
  color: #3D8F89;
}
.way_box .way {
  width: 1440px;
  margin: 0 auto;
  text-align: center;
  padding: 100px 0;
}
.footer {
  text-align: center;
  padding: 50px 0;
}
.ma_box {
  display: flex;
  justify-content: center;
  gap: 30px;
  margin-bottom: 20px;
}
.ma_box img {
  height: 150px;
}
.ma_box_about {
  margin-top: 50px;
}
.add_act {
  margin-top: 50px;
  margin-bottom: 10px;
}
.yingdi {
  text-align: center;
  padding-bottom: 50px;
}
.yingdi .yingdi_nav {
  width: 1050px;
  margin: 0 auto;
  margin-top: 50px;
  margin-bottom: 50px;
  text-align: left;
}
.yingdi .yingdi_nav span {
  display: inline-block;
  color: #2A7066;
  background: #53DFCB;
  font-size: 26px;
  padding: 5px 20px;
  border-radius: 50px;
  margin-right: 20px;
  font-size: 600;
  cursor: pointer;
}
.yingdi .yingdi_nav .act {
  background: #FCEE21;
  color: #333;
  position: relative;
}
.yingdi .yingdi_nav .act::after {
  content: "";
  position: absolute;
  width: 25px;
  height: 22px;
  background: url("../img/jiao.png") no-repeat;
  left: 50%;
  transform: translateX(-50%);
  bottom: -30px;
}