.header {
  transition: all 0.6s;
  background: #fff;
  backdrop-filter: blur(0px);
  box-shadow: 0px 2px 8px 0px rgba(0, 0, 0, 0.1);
}

.header.active1 {
  top: -90px;
}

.header .header_box .header_top .header_t_box .logo img:first-child {
  display: none;
}

.header .header_box .header_top .header_t_box .logo img:last-child {
  display: block;
}

.header .header_box .header_top .header_t_box .header_nav .haeder_nav_box .nav_item a {
  color: #111;
}

.banner {
  width: 100%;
  height: 856px;
  position: relative;
  margin-top: 88px;
}

.banner img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.banner .mask {
  position: absolute;
  width: 100%;
  height: 100%;
  top: 0;
  left: 0;
  background: rgba(0, 0, 0, 0.3);
}

.banner .banner_box {
  width: 100%;
  height: 100%;
  position: absolute;
  top: 0;
  left: 0;
  z-index: 2;
}

.banner .banner_box .banner_contnet {
  position: absolute;
  bottom: 82px;
  left: 0;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
}

.banner .banner_box .banner_contnet h3 {
  text-align: left;
  color: #FFF;
  font-size: 50px;
  font-style: normal;
  font-weight: 400;
  line-height: 60px;
  /* 120% */
  text-transform: uppercase;
}

.banner .banner_box .banner_contnet h3 span {
  color: #D80C18;
}

.banner .banner_box .banner_contnet .line {
  margin-top: 32px;
  width: 100%;
  height: 11px;
  position: relative;
}

.banner .banner_box .banner_contnet .line::after {
  content: '';
  width: 50px;
  height: 11px;
  background: url(../png/line.png) no-repeat;
  background-size: 100% 100%;
  position: absolute;
  top: 0;
  left: 0;
}

.banner .banner_box .banner_contnet p {
  margin-top: 32px;
  color: #FFF;
  text-align: left;
  font-size: 40px;
  font-style: normal;
  font-weight: 400;
  line-height: normal;
  letter-spacing: 2px;
}

.nav_tab {
  width: 100%;
  height: 100px;
  background: #F9F9F9;
  position: static;
}

.nav_tab.active {
  position: fixed;
  top: 0;
  left: 0;
  z-index: 21;
}

.nav_tab .tab_box {
  width: 100%;
  height: 100%;
  display: flex;
  flex-direction: row;
  align-items: center;
}

.nav_tab .tab_box .tab_item {
  margin-right: 128px;
  cursor: pointer;
  height: 100%;
  color: #999;
  font-size: 20px;
  font-style: normal;
  font-weight: 400;
  line-height: 100px;
}

.nav_tab .tab_box .tab_item:last-child {
  margin-right: 0;
}

.nav_tab .tab_box .tab_item.active {
  color: #D80C18;
}

.main_content {
  width: 100%;
  height: auto;
}

.main_content .introduction {
  width: 100%;
  height: auto;
  padding: 104px 0 60px;
  background: #fff;
}

.main_content .introduction .intro_box {
  width: 100%;
  height: auto;
}

.main_content .introduction .intro_box h3 {
  text-align: left;
  color: #111;
  font-size: 40px;
  font-style: normal;
  font-weight: 400;
  line-height: normal;
}

.main_content .introduction .intro_box .line {
  margin-top: 20px;
  width: 50px;
  height: 11px;
  position: relative;
}

.main_content .introduction .intro_box .line::after {
  content: '';
  width: 50px;
  height: 11px;
  background: url(../png/line.png) no-repeat;
  background-size: 100% 100%;
  position: absolute;
  top: 0;
  left: 0;
}

.main_content .introduction .intro_box .intro_contnet {
  width: 1200px;
  height: auto;
  margin-top: 64px;
}

.main_content .introduction .intro_box .intro_contnet p {
  text-align: left;
  color: #666;
  font-size: 16px;
  font-style: normal;
  font-weight: 400;
  line-height: 30px;
  /* 187.5% */
}

.main_content .introduction .intro_box .intro_icon_box {
  width: 100%;
  height: auto;
  margin-top: 85px;
  display: flex;
  flex-direction: row;
}

.main_content .introduction .intro_box .intro_icon_box .intro_i_item {
  margin-right: 110px;
  display: flex;
  flex-direction: column;
  align-items: center;
}

.main_content .introduction .intro_box .intro_icon_box .intro_i_item:last-child {
  margin-right: 0;
}

.main_content .introduction .intro_box .intro_icon_box .intro_i_item .item_img {
  width: 70px;
  height: 70px;
}

.main_content .introduction .intro_box .intro_icon_box .intro_i_item .item_img img {
  width: 100%;
  height: 100%;
}

.main_content .introduction .intro_box .intro_icon_box .intro_i_item p {
  margin-top: 24px;
  color: #666;
  font-size: 22px;
  font-style: normal;
  font-weight: 400;
  line-height: 30px;
  /* 136.364% */
}

.main_content .introduction .intro_box .intro_b_box {
  width: 100%;
  height: 500px;
  margin-top: 172px;
  position: relative;
}

.main_content .introduction .intro_box .intro_b_box .intro_b_b_img {
  width: 100%;
  height: 100%;
}

.main_content .introduction .intro_box .intro_b_box .intro_b_content {
  width: 525px;
  height: auto;
  position: absolute;
  top: 102px;
  left: 84px;
}

.main_content .introduction .intro_box .intro_b_box .intro_b_content .intro_b_title {
  text-align: left;
  color: #FFF;
  font-size: 40px;
  font-style: normal;
  font-weight: 400;
  line-height: normal;
}

.main_content .introduction .intro_box .intro_b_box .intro_b_content .intro_b_desc {
  margin-top: 45px;
}

.main_content .introduction .intro_box .intro_b_box .intro_b_content .intro_b_desc p {
  text-align: left;
  color: #FFF;
  font-size: 16px;
  font-style: normal;
  font-weight: 400;
  line-height: 30px;
  /* 187.5% */
}

.main_content .introduction .intro_box .intro_b_box .intro_b_img {
  width: 902px;
  height: 634px;
  position: absolute;
  bottom: 0;
  right: 0;
}

.main_content .introduction .intro_box .intro_b_box .intro_b_img img {
  width: 100%;
  height: 100%;
}

.main_content .advantages {
  width: 100%;
  height: auto;
  padding: 100px 0 62px;
}

.main_content .advantages .advant_box {
  width: 100%;
  height: auto;
  display: flex;
  flex-direction: row;
  justify-content: space-between;
}

.main_content .advantages .advant_box .advant_b_l {
  width: 602px;
  height: auto;
}

.main_content .advantages .advant_box .advant_b_l h3 {
  margin-top: 40px;
  text-align: left;
  color: #111;
  font-size: 40px;
  font-style: normal;
  font-weight: 400;
  line-height: normal;
}

.main_content .advantages .advant_box .advant_b_l .line {
  margin-top: 20px;
  width: 50px;
  height: 11px;
  position: relative;
}

.main_content .advantages .advant_box .advant_b_l .line::after {
  content: '';
  width: 50px;
  height: 11px;
  background: url(../png/line.png) no-repeat;
  background-size: 100% 100%;
  position: absolute;
  top: 0;
  left: 0;
}

.main_content .advantages .advant_box .advant_b_l .advant_b_l_box {
  width: 100%;
  height: auto;
  margin-top: 40px;
}

.main_content .advantages .advant_box .advant_b_l .advant_b_l_box .item {
  width: 100%;
  height: auto;
  padding: 53px 0 52px;
  border-bottom: 1px solid #D9D9D9;
}

.main_content .advantages .advant_box .advant_b_l .advant_b_l_box .item .item_title {
  text-align: left;
  color: #111;
  font-size: 28px;
  font-style: normal;
  font-weight: 400;
  line-height: normal;
}

.main_content .advantages .advant_box .advant_b_l .advant_b_l_box .item .item_desc {
  text-align: left;
  margin-top: 20px;
  color: #666;
  font-size: 16px;
  font-style: normal;
  font-weight: 400;
  line-height: 30px;
  /* 187.5% */
}

.main_content .advantages .advant_box .advant_b_r {
  width: 640px;
  height: 820px;
  position: relative;
}

.main_content .advantages .advant_box .advant_b_r .advant_b_r_box {
  width: 100%;
  height: 100%;
}

.main_content .advantages .advant_box .advant_b_r .advant_b_r_box .ad_item {
  width: 100%;
  height: 100%;
}

.main_content .advantages .advant_box .advant_b_r .advant_b_r_box .ad_item img {
  width: 100%;
  height: 100%;
}

.main_content .advantages .advant_box .advant_b_r .swiper-button-prev {
  width: 60px;
  height: 60px;
  border-radius: 20px 0px 0px 0px;
  background: #D80C18;
  display: flex;
  flex-direction: row;
  align-items: center;
  justify-content: center;
  left: -60px;
  top: unset;
  bottom: 0;
}

.main_content .advantages .advant_box .advant_b_r .swiper-button-prev img {
  width: 10px;
  transform: rotate(-180deg);
}

.main_content .advantages .advant_box .advant_b_r .swiper-button-prev::after {
  content: '';
}

.main_content .advantages .advant_box .advant_b_r .swiper-button-next {
  width: 60px;
  height: 60px;
  border-radius: 0px 0px 20px 0px;
  background: #D80C18;
  display: flex;
  flex-direction: row;
  align-items: center;
  justify-content: center;
  right: unset;
  left: 0px;
  top: unset;
  bottom: 0;
}

.main_content .advantages .advant_box .advant_b_r .swiper-button-next img {
  width: 10px;
}

.main_content .advantages .advant_box .advant_b_r .swiper-button-next::after {
  content: '';
}

.main_content .history {
  width: 100%;
  height: auto;
  padding: 100px 0 170px;
  background: #F9F9F9;
  display: flex;
  flex-direction: column;
  align-items: center;
}

.main_content .history .his_top {
  width: 100%;
  height: auto;
  display: flex;
  flex-direction: column;
  align-items: center;
}

.main_content .history .his_top h3 {
  color: #111;
  text-align: center;
  font-size: 40px;
  font-style: normal;
  font-weight: 400;
  line-height: normal;
}

.main_content .history .his_top .line {
  margin-top: 20px;
  width: 50px;
  height: 11px;
  position: relative;
}

.main_content .history .his_top .line::after {
  content: '';
  width: 50px;
  height: 11px;
  background: url(../png/line.png) no-repeat;
  background-size: 100% 100%;
  position: absolute;
  top: 0;
  left: 0;
}

.main_content .history .his_center {
  width: 980px;
  height: 80px;
  margin-top: 57px;
  display: flex;
  flex-direction: row;
  justify-content: center;
  position: relative;
}

.main_content .history .his_center .his_line {
  width: 800px;
  height: 1px;
  background: #D9D9D9;
  position: absolute;
  top: 20px;
  left: 50%;
  transform: translateX(-50%);
}

.main_content .history .his_center .swiper-button-prev {
  width: 50px;
  height: 50px;
  left: 0px;
  top: 18px;
}

.main_content .history .his_center .swiper-button-prev:hover img:first-child {
  display: none;
}

.main_content .history .his_center .swiper-button-prev:hover img:last-child {
  display: block;
}

.main_content .history .his_center .swiper-button-prev img {
  width: 100%;
  height: 100%;
}

.main_content .history .his_center .swiper-button-prev img:first-child {
  display: block;
}

.main_content .history .his_center .swiper-button-prev img:last-child {
  display: none;
}

.main_content .history .his_center .swiper-button-prev::after {
  content: '';
}

.main_content .history .his_center .swiper-button-next {
  width: 50px;
  height: 50px;
  right: 0;
  top: 18px;
}

.main_content .history .his_center .swiper-button-next:hover img:first-child {
  display: none;
}

.main_content .history .his_center .swiper-button-next:hover img:last-child {
  display: block;
}

.main_content .history .his_center .swiper-button-next img {
  width: 100%;
  height: 100%;
}

.main_content .history .his_center .swiper-button-next img:first-child {
  display: block;
}

.main_content .history .his_center .swiper-button-next img:last-child {
  display: none;
}

.main_content .history .his_center .swiper-button-next::after {
  content: '';
}

.main_content .history .his_center .his_c_box {
  padding-top: 16px;
  width: 640px;
  height: auto;
  position: relative;
}

.main_content .history .his_center .his_c_box .his_item {
  width: auto !important;
  margin-right: 70px;
  display: flex;
  flex-direction: column;
  align-items: center;
}

.main_content .history .his_center .his_c_box .his_item.swiper-slide-active .cri {
  background: #D80C18;
  border: 1px solid #D80C18;
}

.main_content .history .his_center .his_c_box .his_item.swiper-slide-active p {
  color: #D80C18;
}

.main_content .history .his_center .his_c_box .his_item .cri {
  width: 10px;
  height: 10px;
  background: #fff;
  border-radius: 50%;
  border: 1px solid #B4B4B4;
}

.main_content .history .his_center .his_c_box .his_item p {
  margin-top: 16px;
  color: #999;
  font-size: 18px;
  font-style: normal;
  font-weight: 400;
  line-height: normal;
}

.main_content .history .his_center1 {
  width: 100%;
  height: auto;
  position: relative;
}

.main_content .history .his_center1 .his_c1_img {
  position: absolute;
  right: 10.4%;
  top: 50px;
  z-index: 1;
}

.main_content .history .his_center1 .his_c1_box {
  width: 100%;
  height: auto;
  margin-top: -50px;
}

.main_content .history .his_center1 .his_c1_box .his_c1_item {
  width: 980px !important;
  height: auto;
  position: relative;
}

.main_content .history .his_center1 .his_c1_box .his_c1_item.swiper-slide-active .his_b_b_item {
  display: block;
}

.main_content .history .his_center1 .his_c1_box .his_c1_item > p {
  position: absolute;
  top: 0%;
  left: 50%;
  z-index: 1;
  transform: translateX(-50%);
  text-align: center;
  font-family: 'DIN';
  font-size: 280px;
  font-style: normal;
  font-weight: 700;
  line-height: normal;
  background: linear-gradient(180deg, #EDEDED 18.46%, rgba(236, 236, 236, 0) 82.64%);
  background-clip: text;
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.main_content .history .his_center1 .his_c1_box .his_c1_item .his_b_b_item {
  position: relative;
  z-index: 2;
  padding-top: 208px;
  height: auto;
  width: 100%;
  display: none;
}

.main_content .history .his_center1 .his_c1_box .his_c1_item .his_b_b_item .item {
  width: 100%;
  height: auto;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  margin-bottom: 32px;
}

.main_content .history .his_center1 .his_c1_box .his_c1_item .his_b_b_item .item .item_date {
  color: #111;
  font-size: 28px;
  font-style: normal;
  font-weight: 400;
  line-height: 35px;
  /* 125% */
}

.main_content .history .his_center1 .his_c1_box .his_c1_item .his_b_b_item .item .item_desc {
  text-align: left;
  margin-top: 4px;
  color: #666;
  font-size: 16px;
  font-style: normal;
  font-weight: 400;
  line-height: 30px;
  /* 187.5% */
}

.main_content .social {
  width: 100%;
  height: 930px;
  position: relative;
}

.main_content .social img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.main_content .social .mask {
  width: 100%;
  height: 100%;
  position: absolute;
  top: 0;
  left: 0;
  background: rgba(0, 0, 0, 0.15);
  z-index: 1;
}

.main_content .social .social_box {
  width: 100%;
  height: 100%;
  position: absolute;
  top: 0;
  left: 0;
  z-index: 2;
  padding-top: 157px;
}

.main_content .social .social_box h3 {
  text-align: left;
  color: #fff;
  font-size: 40px;
  font-style: normal;
  font-weight: 400;
  line-height: normal;
}

.main_content .social .social_box .line {
  margin-top: 20px;
  width: 50px;
  height: 11px;
  position: relative;
}

.main_content .social .social_box .line::after {
  content: '';
  width: 50px;
  height: 11px;
  background: url(../png/line.png) no-repeat;
  background-size: 100% 100%;
  position: absolute;
  top: 0;
  left: 0;
}

.main_content .social .social_box .social_content {
  width: 100%;
  height: auto;
  display: flex;
  flex-direction: row;
  justify-content: space-between;
  margin-top: 122px;
}

.main_content .social .social_box .social_content .item {
  width: 440px;
  height: auto;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
}

.main_content .social .social_box .social_content .item .item_icon {
  width: 100px;
  height: 100px;
}

.main_content .social .social_box .social_content .item .item_icon img {
  width: 100%;
  height: 100%;
}

.main_content .social .social_box .social_content .item .item_line {
  width: 100%;
  height: 1px;
  margin-top: 30px;
  background: #D9D9D9;
}

.main_content .social .social_box .social_content .item .item_title {
  margin-top: 37px;
  color: #FFF;
  font-size: 28px;
  font-style: normal;
  font-weight: 400;
  line-height: normal;
}

.main_content .social .social_box .social_content .item .item_desc {
  margin-top: 30px;
  text-align: left;
  color: #FFF;
  font-size: 16px;
  font-style: normal;
  font-weight: 400;
  line-height: 30px;
  /* 187.5% */
}

.main_content .parent {
  width: 100%;
  height: auto;
  padding: 123px 0 141px;
  background: #fff;
}

.main_content .parent .parent_title {
  display: flex;
  flex-direction: column;
  align-items: center;
}

.main_content .parent .parent_title h3 {
  color: #111;
  font-size: 40px;
  font-style: normal;
  font-weight: 400;
  line-height: normal;
}

.main_content .parent .parent_title .line {
  margin-top: 20px;
  width: 50px;
  height: 11px;
  position: relative;
}

.main_content .parent .parent_title .line::after {
  content: '';
  width: 50px;
  height: 11px;
  background: url(../png/line.png) no-repeat;
  background-size: 100% 100%;
  position: absolute;
  top: 0;
  left: 0;
}

.main_content .parent .parent_box {
  width: 100%;
  height: auto;
  margin-top: 12px;
}

.main_content .parent .parent_box .parent_r {
  margin-top: 28px;
  width: 100%;
  height: 160px;
  position: relative;
  overflow: hidden;
}

.main_content .parent .parent_box .parent_r .parent_r_img {
  width: 230px;
  height: 120px;
  position: absolute;
  top: 0;
  right: 0;
  z-index: 2;
  background: linear-gradient(270deg, #FFF 38.26%, rgba(255, 255, 255, 0) 100%);
}

.main_content .parent .parent_box .parent_r .parent_r_box {
  overflow: visible;
  width: 100%;
  height: 120px;
  position: absolute;
  top: 0;
  left: 0;
  z-index: 1;
  display: flex;
  flex-direction: row;
  align-items: center;
}

.main_content .parent .parent_box .parent_r .parent_r_box .str_move {
  overflow: visible;
  display: flex;
  flex-direction: row;
  align-items: center;
}

.main_content .parent .parent_box .parent_r .parent_r_box .item {
  width: 230px;
  height: 120px;
  margin-right: 28px;
  display: flex;
  flex-direction: row;
  align-items: center;
  justify-content: center;
  background: #fff;
}

.main_content .parent .parent_box .parent_r .parent_r_box .item:hover {
  background: #FFF;
  box-shadow: 0px 10px 20px 0px rgba(65, 0, 0, 0.15);
}

.main_content .parent .parent_box .parent_r .parent_r_box .item img {
  max-width: 180px !important;
  height: auto;
}

.main_content .parent .parent_box .parent_l {
  margin-top: 28px;
  width: 100%;
  height: 160px;
  position: relative;
  overflow: hidden;
}

.main_content .parent .parent_box .parent_l .parent_l_img {
  width: 230px;
  height: 120px;
  position: absolute;
  top: 0;
  left: 0;
  z-index: 2;
  background: linear-gradient(270deg, rgba(255, 255, 255, 0) 23.04%, #FFF 67.83%);
}

.main_content .parent .parent_box .parent_l .parent_l_box {
  overflow: visible;
  width: 100%;
  height: 120px;
  position: absolute;
  top: 0;
  left: 0;
  z-index: 1;
  display: flex;
  flex-direction: row;
  align-items: center;
}

.main_content .parent .parent_box .parent_l .parent_l_box .str_move {
  overflow: visible;
  display: flex;
  flex-direction: row;
  align-items: center;
}

.main_content .parent .parent_box .parent_l .parent_l_box .item {
  width: 230px;
  height: 120px;
  margin-right: 28px;
  display: flex;
  flex-direction: row;
  align-items: center;
  justify-content: center;
  background: #fff;
}

.main_content .parent .parent_box .parent_l .parent_l_box .item:hover {
  background: #FFF;
  box-shadow: 0px 10px 20px 0px rgba(65, 0, 0, 0.15);
}

.main_content .parent .parent_box .parent_l .parent_l_box .item img {
  max-width: 180px !important;
  height: auto;
}

@media screen and (max-width: 1750px) {
  .header {
    transition: all 0.6s;
    background: #fff;
    backdrop-filter: blur(0vw);
    box-shadow: 0vw 0.09714vw 0.38857vw 0vw rgba(0, 0, 0, 0.1);
  }
  .header.active1 {
    top: -4.37143vw;
  }
  .header .header_box .header_top .header_t_box .logo img:first-child {
    display: none;
  }
  .header .header_box .header_top .header_t_box .logo img:last-child {
    display: block;
  }
  .header .header_box .header_top .header_t_box .header_nav .haeder_nav_box .nav_item a {
    color: #111;
  }
  .banner {
    width: 100%;
    height: 41.57714vw;
    position: relative;
    margin-top: 4.27429vw;
  }
  .banner img {
    width: 100%;
    height: 100%;
    object-fit: cover;
  }
  .banner .mask {
    position: absolute;
    width: 100%;
    height: 100%;
    top: 0;
    left: 0;
    background: rgba(0, 0, 0, 0.3);
  }
  .banner .banner_box {
    width: 100%;
    height: 100%;
    position: absolute;
    top: 0;
    left: 0;
    z-index: 2;
  }
  .banner .banner_box .banner_contnet {
    position: absolute;
    bottom: 3.98286vw;
    left: 0;
    display: flex;
    flex-direction: column;
    align-items: flex-start;
  }
  .banner .banner_box .banner_contnet h3 {
    text-align: left;
    color: #FFF;
    font-size: 2.42857vw;
    font-style: normal;
    font-weight: 400;
    line-height: 2.91429vw;
    /* 120% */
    text-transform: uppercase;
  }
  .banner .banner_box .banner_contnet h3 span {
    color: #D80C18;
  }
  .banner .banner_box .banner_contnet .line {
    margin-top: 1.55429vw;
    width: 100%;
    height: 0.53429vw;
    position: relative;
  }
  .banner .banner_box .banner_contnet .line::after {
    content: '';
    width: 2.42857vw;
    height: 0.53429vw;
    background: url(../png/line.png) no-repeat;
    background-size: 100% 100%;
    position: absolute;
    top: 0;
    left: 0;
  }
  .banner .banner_box .banner_contnet p {
    margin-top: 1.55429vw;
    color: #FFF;
    text-align: left;
    font-size: 1.94286vw;
    font-style: normal;
    font-weight: 400;
    line-height: normal;
    letter-spacing: 0.09714vw;
  }
  .nav_tab {
    width: 100%;
    height: 4.85714vw;
    background: #F9F9F9;
    position: static;
  }
  .nav_tab.active {
    position: fixed;
    top: 0;
    left: 0;
    z-index: 21;
  }
  .nav_tab .tab_box {
    width: 100%;
    height: 100%;
    display: flex;
    flex-direction: row;
    align-items: center;
  }
  .nav_tab .tab_box .tab_item {
    margin-right: 6.21714vw;
    cursor: pointer;
    height: 100%;
    color: #999;
    font-size: 0.97143vw;
    font-style: normal;
    font-weight: 400;
    line-height: 4.85714vw;
  }
  .nav_tab .tab_box .tab_item:last-child {
    margin-right: 0;
  }
  .nav_tab .tab_box .tab_item.active {
    color: #D80C18;
  }
  .main_content {
    width: 100%;
    height: auto;
  }
  .main_content .introduction {
    width: 100%;
    height: auto;
    padding: 5.05143vw 0 2.91429vw;
    background: #fff;
  }
  .main_content .introduction .intro_box {
    width: 100%;
    height: auto;
  }
  .main_content .introduction .intro_box h3 {
    text-align: left;
    color: #111;
    font-size: 1.94286vw;
    font-style: normal;
    font-weight: 400;
    line-height: normal;
  }
  .main_content .introduction .intro_box .line {
    margin-top: 0.97143vw;
    width: 2.42857vw;
    height: 0.53429vw;
    position: relative;
  }
  .main_content .introduction .intro_box .line::after {
    content: '';
    width: 2.42857vw;
    height: 0.53429vw;
    background: url(../png/line.png) no-repeat;
    background-size: 100% 100%;
    position: absolute;
    top: 0;
    left: 0;
  }
  .main_content .introduction .intro_box .intro_contnet {
    width: 58.28571vw;
    height: auto;
    margin-top: 3.10857vw;
  }
  .main_content .introduction .intro_box .intro_contnet p {
    text-align: left;
    color: #666;
    font-size: 0.77714vw;
    font-style: normal;
    font-weight: 400;
    line-height: 1.45714vw;
    /* 187.5% */
  }
  .main_content .introduction .intro_box .intro_icon_box {
    width: 100%;
    height: auto;
    margin-top: 4.12857vw;
    display: flex;
    flex-direction: row;
  }
  .main_content .introduction .intro_box .intro_icon_box .intro_i_item {
    margin-right: 5.34286vw;
    display: flex;
    flex-direction: column;
    align-items: center;
  }
  .main_content .introduction .intro_box .intro_icon_box .intro_i_item:last-child {
    margin-right: 0;
  }
  .main_content .introduction .intro_box .intro_icon_box .intro_i_item .item_img {
    width: 3.4vw;
    height: 3.4vw;
  }
  .main_content .introduction .intro_box .intro_icon_box .intro_i_item .item_img img {
    width: 100%;
    height: 100%;
  }
  .main_content .introduction .intro_box .intro_icon_box .intro_i_item p {
    margin-top: 1.16571vw;
    color: #666;
    font-size: 1.06857vw;
    font-style: normal;
    font-weight: 400;
    line-height: 1.45714vw;
    /* 136.364% */
  }
  .main_content .introduction .intro_box .intro_b_box {
    width: 100%;
    height: 24.28571vw;
    margin-top: 8.35429vw;
    position: relative;
  }
  .main_content .introduction .intro_box .intro_b_box .intro_b_b_img {
    width: 100%;
    height: 100%;
  }
  .main_content .introduction .intro_box .intro_b_box .intro_b_content {
    width: 25.5vw;
    height: auto;
    position: absolute;
    top: 4.95429vw;
    left: 4.08vw;
  }
  .main_content .introduction .intro_box .intro_b_box .intro_b_content .intro_b_title {
    text-align: left;
    color: #FFF;
    font-size: 1.94286vw;
    font-style: normal;
    font-weight: 400;
    line-height: normal;
  }
  .main_content .introduction .intro_box .intro_b_box .intro_b_content .intro_b_desc {
    margin-top: 2.18571vw;
  }
  .main_content .introduction .intro_box .intro_b_box .intro_b_content .intro_b_desc p {
    text-align: left;
    color: #FFF;
    font-size: 0.77714vw;
    font-style: normal;
    font-weight: 400;
    line-height: 1.45714vw;
    /* 187.5% */
  }
  .main_content .introduction .intro_box .intro_b_box .intro_b_img {
    width: 43.81143vw;
    height: 30.79429vw;
    position: absolute;
    bottom: 0;
    right: 0;
  }
  .main_content .introduction .intro_box .intro_b_box .intro_b_img img {
    width: 100%;
    height: 100%;
  }
  .main_content .advantages {
    width: 100%;
    height: auto;
    padding: 4.85714vw 0 3.01143vw;
  }
  .main_content .advantages .advant_box {
    width: 100%;
    height: auto;
    display: flex;
    flex-direction: row;
    justify-content: space-between;
  }
  .main_content .advantages .advant_box .advant_b_l {
    width: 29.24vw;
    height: auto;
  }
  .main_content .advantages .advant_box .advant_b_l h3 {
    margin-top: 1.94286vw;
    text-align: left;
    color: #111;
    font-size: 1.94286vw;
    font-style: normal;
    font-weight: 400;
    line-height: normal;
  }
  .main_content .advantages .advant_box .advant_b_l .line {
    margin-top: 0.97143vw;
    width: 2.42857vw;
    height: 0.53429vw;
    position: relative;
  }
  .main_content .advantages .advant_box .advant_b_l .line::after {
    content: '';
    width: 2.42857vw;
    height: 0.53429vw;
    background: url(../png/line.png) no-repeat;
    background-size: 100% 100%;
    position: absolute;
    top: 0;
    left: 0;
  }
  .main_content .advantages .advant_box .advant_b_l .advant_b_l_box {
    width: 100%;
    height: auto;
    margin-top: 1.94286vw;
  }
  .main_content .advantages .advant_box .advant_b_l .advant_b_l_box .item {
    width: 100%;
    height: auto;
    padding: 2.57429vw 0 2.52571vw;
    border-bottom: 0.04857vw solid #D9D9D9;
  }
  .main_content .advantages .advant_box .advant_b_l .advant_b_l_box .item .item_title {
    text-align: left;
    color: #111;
    font-size: 1.36vw;
    font-style: normal;
    font-weight: 400;
    line-height: normal;
  }
  .main_content .advantages .advant_box .advant_b_l .advant_b_l_box .item .item_desc {
    text-align: left;
    margin-top: 0.97143vw;
    color: #666;
    font-size: 0.77714vw;
    font-style: normal;
    font-weight: 400;
    line-height: 1.45714vw;
    /* 187.5% */
  }
  .main_content .advantages .advant_box .advant_b_r {
    width: 31.08571vw;
    height: 39.82857vw;
    position: relative;
  }
  .main_content .advantages .advant_box .advant_b_r .advant_b_r_box {
    width: 100%;
    height: 100%;
  }
  .main_content .advantages .advant_box .advant_b_r .advant_b_r_box .ad_item {
    width: 100%;
    height: 100%;
  }
  .main_content .advantages .advant_box .advant_b_r .advant_b_r_box .ad_item img {
    width: 100%;
    height: 100%;
  }
  .main_content .advantages .advant_box .advant_b_r .swiper-button-prev {
    width: 2.91429vw;
    height: 2.91429vw;
    border-radius: 0.97143vw 0vw 0vw 0vw;
    background: #D80C18;
    display: flex;
    flex-direction: row;
    align-items: center;
    justify-content: center;
    left: -2.91429vw;
    top: unset;
    bottom: 0;
  }
  .main_content .advantages .advant_box .advant_b_r .swiper-button-prev img {
    width: 0.48571vw;
    transform: rotate(-180deg);
  }
  .main_content .advantages .advant_box .advant_b_r .swiper-button-prev::after {
    content: '';
  }
  .main_content .advantages .advant_box .advant_b_r .swiper-button-next {
    width: 2.91429vw;
    height: 2.91429vw;
    border-radius: 0vw 0vw 0.97143vw 0vw;
    background: #D80C18;
    display: flex;
    flex-direction: row;
    align-items: center;
    justify-content: center;
    right: unset;
    left: 0vw;
    top: unset;
    bottom: 0;
  }
  .main_content .advantages .advant_box .advant_b_r .swiper-button-next img {
    width: 0.48571vw;
  }
  .main_content .advantages .advant_box .advant_b_r .swiper-button-next::after {
    content: '';
  }
  .main_content .history {
    width: 100%;
    height: auto;
    padding: 4.85714vw 0 8.25714vw;
    background: #F9F9F9;
    display: flex;
    flex-direction: column;
    align-items: center;
  }
  .main_content .history .his_top {
    width: 100%;
    height: auto;
    display: flex;
    flex-direction: column;
    align-items: center;
  }
  .main_content .history .his_top h3 {
    color: #111;
    text-align: center;
    font-size: 1.94286vw;
    font-style: normal;
    font-weight: 400;
    line-height: normal;
  }
  .main_content .history .his_top .line {
    margin-top: 0.97143vw;
    width: 2.42857vw;
    height: 0.53429vw;
    position: relative;
  }
  .main_content .history .his_top .line::after {
    content: '';
    width: 2.42857vw;
    height: 0.53429vw;
    background: url(../png/line.png) no-repeat;
    background-size: 100% 100%;
    position: absolute;
    top: 0;
    left: 0;
  }
  .main_content .history .his_center {
    width: 47.6vw;
    height: 3.88571vw;
    margin-top: 2.76857vw;
    display: flex;
    flex-direction: row;
    justify-content: center;
    position: relative;
  }
  .main_content .history .his_center .his_line {
    width: 38.85714vw;
    height: 0.04857vw;
    background: #D9D9D9;
    position: absolute;
    top: 0.97143vw;
    left: 50%;
    transform: translateX(-50%);
  }
  .main_content .history .his_center .swiper-button-prev {
    width: 2.42857vw;
    height: 2.42857vw;
    left: 0vw;
    top: 0.87429vw;
  }
  .main_content .history .his_center .swiper-button-prev:hover img:first-child {
    display: none;
  }
  .main_content .history .his_center .swiper-button-prev:hover img:last-child {
    display: block;
  }
  .main_content .history .his_center .swiper-button-prev img {
    width: 100%;
    height: 100%;
  }
  .main_content .history .his_center .swiper-button-prev img:first-child {
    display: block;
  }
  .main_content .history .his_center .swiper-button-prev img:last-child {
    display: none;
  }
  .main_content .history .his_center .swiper-button-prev::after {
    content: '';
  }
  .main_content .history .his_center .swiper-button-next {
    width: 2.42857vw;
    height: 2.42857vw;
    right: 0;
    top: 0.87429vw;
  }
  .main_content .history .his_center .swiper-button-next:hover img:first-child {
    display: none;
  }
  .main_content .history .his_center .swiper-button-next:hover img:last-child {
    display: block;
  }
  .main_content .history .his_center .swiper-button-next img {
    width: 100%;
    height: 100%;
  }
  .main_content .history .his_center .swiper-button-next img:first-child {
    display: block;
  }
  .main_content .history .his_center .swiper-button-next img:last-child {
    display: none;
  }
  .main_content .history .his_center .swiper-button-next::after {
    content: '';
  }
  .main_content .history .his_center .his_c_box {
    padding-top: 0.77714vw;
    width: 31.08571vw;
    height: auto;
    position: relative;
  }
  .main_content .history .his_center .his_c_box .his_item {
    width: auto !important;
    margin-right: 3.4vw;
    display: flex;
    flex-direction: column;
    align-items: center;
  }
  .main_content .history .his_center .his_c_box .his_item.swiper-slide-active .cri {
    background: #D80C18;
    border: 0.04857vw solid #D80C18;
  }
  .main_content .history .his_center .his_c_box .his_item.swiper-slide-active p {
    color: #D80C18;
  }
  .main_content .history .his_center .his_c_box .his_item .cri {
    width: 0.48571vw;
    height: 0.48571vw;
    background: #fff;
    border-radius: 50%;
    border: 0.04857vw solid #B4B4B4;
  }
  .main_content .history .his_center .his_c_box .his_item p {
    margin-top: 0.77714vw;
    color: #999;
    font-size: 0.87429vw;
    font-style: normal;
    font-weight: 400;
    line-height: normal;
  }
  .main_content .history .his_center1 {
    width: 100%;
    height: auto;
    position: relative;
  }
  .main_content .history .his_center1 .his_c1_img {
    position: absolute;
    right: 10.4%;
    top: 2.42857vw;
    z-index: 1;
  }
  .main_content .history .his_center1 .his_c1_box {
    width: 100%;
    height: auto;
    margin-top: -2.42857vw;
  }
  .main_content .history .his_center1 .his_c1_box .his_c1_item {
    width: 47.6vw !important;
    height: auto;
    position: relative;
  }
  .main_content .history .his_center1 .his_c1_box .his_c1_item.swiper-slide-active .his_b_b_item {
    display: block;
  }
  .main_content .history .his_center1 .his_c1_box .his_c1_item > p {
    position: absolute;
    top: 0%;
    left: 50%;
    z-index: 1;
    transform: translateX(-50%);
    text-align: center;
    font-family: 'DIN';
    font-size: 13.6vw;
    font-style: normal;
    font-weight: 700;
    line-height: normal;
    background: linear-gradient(180deg, #EDEDED 18.46%, rgba(236, 236, 236, 0) 82.64%);
    background-clip: text;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
  }
  .main_content .history .his_center1 .his_c1_box .his_c1_item .his_b_b_item {
    position: relative;
    z-index: 2;
    padding-top: 10.10286vw;
    height: auto;
    width: 100%;
    display: none;
  }
  .main_content .history .his_center1 .his_c1_box .his_c1_item .his_b_b_item .item {
    width: 100%;
    height: auto;
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    margin-bottom: 1.55429vw;
  }
  .main_content .history .his_center1 .his_c1_box .his_c1_item .his_b_b_item .item .item_date {
    color: #111;
    font-size: 1.36vw;
    font-style: normal;
    font-weight: 400;
    line-height: 1.7vw;
    /* 125% */
  }
  .main_content .history .his_center1 .his_c1_box .his_c1_item .his_b_b_item .item .item_desc {
    text-align: left;
    margin-top: 0.19429vw;
    color: #666;
    font-size: 0.77714vw;
    font-style: normal;
    font-weight: 400;
    line-height: 1.45714vw;
    /* 187.5% */
  }
  .main_content .social {
    width: 100%;
    height: 45.17143vw;
    position: relative;
  }
  .main_content .social img {
    width: 100%;
    height: 100%;
    object-fit: cover;
  }
  .main_content .social .mask {
    width: 100%;
    height: 100%;
    position: absolute;
    top: 0;
    left: 0;
    background: rgba(0, 0, 0, 0.15);
    z-index: 1;
  }
  .main_content .social .social_box {
    width: 100%;
    height: 100%;
    position: absolute;
    top: 0;
    left: 0;
    z-index: 2;
    padding-top: 7.62571vw;
  }
  .main_content .social .social_box h3 {
    text-align: left;
    color: #fff;
    font-size: 1.94286vw;
    font-style: normal;
    font-weight: 400;
    line-height: normal;
  }
  .main_content .social .social_box .line {
    margin-top: 0.97143vw;
    width: 2.42857vw;
    height: 0.53429vw;
    position: relative;
  }
  .main_content .social .social_box .line::after {
    content: '';
    width: 2.42857vw;
    height: 0.53429vw;
    background: url(../png/line.png) no-repeat;
    background-size: 100% 100%;
    position: absolute;
    top: 0;
    left: 0;
  }
  .main_content .social .social_box .social_content {
    width: 100%;
    height: auto;
    display: flex;
    flex-direction: row;
    justify-content: space-between;
    margin-top: 5.92571vw;
  }
  .main_content .social .social_box .social_content .item {
    width: 21.37143vw;
    height: auto;
    display: flex;
    flex-direction: column;
    align-items: flex-start;
  }
  .main_content .social .social_box .social_content .item .item_icon {
    width: 4.85714vw;
    height: 4.85714vw;
  }
  .main_content .social .social_box .social_content .item .item_icon img {
    width: 100%;
    height: 100%;
  }
  .main_content .social .social_box .social_content .item .item_line {
    width: 100%;
    height: 0.04857vw;
    margin-top: 1.45714vw;
    background: #D9D9D9;
  }
  .main_content .social .social_box .social_content .item .item_title {
    margin-top: 1.79714vw;
    color: #FFF;
    font-size: 1.36vw;
    font-style: normal;
    font-weight: 400;
    line-height: normal;
  }
  .main_content .social .social_box .social_content .item .item_desc {
    margin-top: 1.45714vw;
    text-align: left;
    color: #FFF;
    font-size: 0.77714vw;
    font-style: normal;
    font-weight: 400;
    line-height: 1.45714vw;
    /* 187.5% */
  }
  .main_content .parent {
    width: 100%;
    height: auto;
    padding: 5.97429vw 0 6.84857vw;
    background: #fff;
  }
  .main_content .parent .parent_title {
    display: flex;
    flex-direction: column;
    align-items: center;
  }
  .main_content .parent .parent_title h3 {
    color: #111;
    font-size: 1.94286vw;
    font-style: normal;
    font-weight: 400;
    line-height: normal;
  }
  .main_content .parent .parent_title .line {
    margin-top: 0.97143vw;
    width: 2.42857vw;
    height: 0.53429vw;
    position: relative;
  }
  .main_content .parent .parent_title .line::after {
    content: '';
    width: 2.42857vw;
    height: 0.53429vw;
    background: url(../png/line.png) no-repeat;
    background-size: 100% 100%;
    position: absolute;
    top: 0;
    left: 0;
  }
  .main_content .parent .parent_box {
    width: 100%;
    height: auto;
    margin-top: 0.58286vw;
  }
  .main_content .parent .parent_box .parent_r {
    margin-top: 1.36vw;
    width: 100%;
    height: 7.77143vw;
    position: relative;
    overflow: hidden;
  }
  .main_content .parent .parent_box .parent_r .parent_r_img {
    width: 11.17143vw;
    height: 5.82857vw;
    position: absolute;
    top: 0;
    right: 0;
    z-index: 2;
    background: linear-gradient(270deg, #FFF 38.26%, rgba(255, 255, 255, 0) 100%);
  }
  .main_content .parent .parent_box .parent_r .parent_r_box {
    overflow: visible;
    width: 100%;
    height: 5.82857vw;
    position: absolute;
    top: 0;
    left: 0;
    z-index: 1;
    display: flex;
    flex-direction: row;
    align-items: center;
  }
  .main_content .parent .parent_box .parent_r .parent_r_box .str_move {
    overflow: visible;
    display: flex;
    flex-direction: row;
    align-items: center;
  }
  .main_content .parent .parent_box .parent_r .parent_r_box .item {
    width: 11.17143vw;
    height: 5.82857vw;
    margin-right: 1.36vw;
    display: flex;
    flex-direction: row;
    align-items: center;
    justify-content: center;
    background: #fff;
  }
  .main_content .parent .parent_box .parent_r .parent_r_box .item:hover {
    background: #FFF;
    box-shadow: 0vw 0.48571vw 0.97143vw 0vw rgba(65, 0, 0, 0.15);
  }
  .main_content .parent .parent_box .parent_r .parent_r_box .item img {
    max-width: 7.71429vw !important;
    height: auto;
  }
  .main_content .parent .parent_box .parent_l {
    margin-top: 1.36vw;
    width: 100%;
    height: 7.77143vw;
    position: relative;
    overflow: hidden;
  }
  .main_content .parent .parent_box .parent_l .parent_l_img {
    width: 11.17143vw;
    height: 5.82857vw;
    position: absolute;
    top: 0;
    left: 0;
    z-index: 2;
    background: linear-gradient(270deg, rgba(255, 255, 255, 0) 23.04%, #FFF 67.83%);
  }
  .main_content .parent .parent_box .parent_l .parent_l_box {
    overflow: visible;
    width: 100%;
    height: 5.82857vw;
    position: absolute;
    top: 0;
    left: 0;
    z-index: 1;
    display: flex;
    flex-direction: row;
    align-items: center;
  }
  .main_content .parent .parent_box .parent_l .parent_l_box .str_move {
    overflow: visible;
    display: flex;
    flex-direction: row;
    align-items: center;
  }
  .main_content .parent .parent_box .parent_l .parent_l_box .item {
    width: 11.17143vw;
    height: 5.82857vw;
    margin-right: 1.36vw;
    display: flex;
    flex-direction: row;
    align-items: center;
    justify-content: center;
    background: #fff;
  }
  .main_content .parent .parent_box .parent_l .parent_l_box .item:hover {
    background: #FFF;
    box-shadow: 0vw 0.48571vw 0.97143vw 0vw rgba(65, 0, 0, 0.15);
  }
  .main_content .parent .parent_box .parent_l .parent_l_box .item img {
    max-width: 7.71429vw !important;
    height: auto;
  }
}

@media screen and (max-width: 1600px) {
  .header {
    transition: all 0.6s;
    background: #fff;
    backdrop-filter: blur(0vw);
    box-shadow: 0vw 0.10625vw 0.425vw 0vw rgba(0, 0, 0, 0.1);
  }
  .header.active1 {
    top: -4.78125vw;
  }
  .header .header_box .header_top .header_t_box .logo img:first-child {
    display: none;
  }
  .header .header_box .header_top .header_t_box .logo img:last-child {
    display: block;
  }
  .header .header_box .header_top .header_t_box .header_nav .haeder_nav_box .nav_item a {
    color: #111;
  }
  .banner {
    width: 100%;
    height: 45.475vw;
    position: relative;
    margin-top: 4.675vw;
  }
  .banner img {
    width: 100%;
    height: 100%;
    object-fit: cover;
  }
  .banner .mask {
    position: absolute;
    width: 100%;
    height: 100%;
    top: 0;
    left: 0;
    background: rgba(0, 0, 0, 0.3);
  }
  .banner .banner_box {
    width: 100%;
    height: 100%;
    position: absolute;
    top: 0;
    left: 0;
    z-index: 2;
  }
  .banner .banner_box .banner_contnet {
    position: absolute;
    bottom: 4.35625vw;
    left: 0;
    display: flex;
    flex-direction: column;
    align-items: flex-start;
  }
  .banner .banner_box .banner_contnet h3 {
    text-align: left;
    color: #FFF;
    font-size: 2.65625vw;
    font-style: normal;
    font-weight: 400;
    line-height: 3.1875vw;
    /* 120% */
    text-transform: uppercase;
  }
  .banner .banner_box .banner_contnet h3 span {
    color: #D80C18;
  }
  .banner .banner_box .banner_contnet .line {
    margin-top: 1.7vw;
    width: 100%;
    height: 0.58437vw;
    position: relative;
  }
  .banner .banner_box .banner_contnet .line::after {
    content: '';
    width: 2.65625vw;
    height: 0.58437vw;
    background: url(../png/line.png) no-repeat;
    background-size: 100% 100%;
    position: absolute;
    top: 0;
    left: 0;
  }
  .banner .banner_box .banner_contnet p {
    margin-top: 1.7vw;
    color: #FFF;
    text-align: left;
    font-size: 2.125vw;
    font-style: normal;
    font-weight: 400;
    line-height: normal;
    letter-spacing: 0.10625vw;
  }
  .nav_tab {
    width: 100%;
    height: 5.3125vw;
    background: #F9F9F9;
    position: static;
  }
  .nav_tab.active {
    position: fixed;
    top: 0;
    left: 0;
    z-index: 21;
  }
  .nav_tab .tab_box {
    width: 100%;
    height: 100%;
    display: flex;
    flex-direction: row;
    align-items: center;
  }
  .nav_tab .tab_box .tab_item {
    margin-right: 6.8vw;
    cursor: pointer;
    height: 100%;
    color: #999;
    font-size: 1.0625vw;
    font-style: normal;
    font-weight: 400;
    line-height: 5.3125vw;
  }
  .nav_tab .tab_box .tab_item:last-child {
    margin-right: 0;
  }
  .nav_tab .tab_box .tab_item.active {
    color: #D80C18;
  }
  .main_content {
    width: 100%;
    height: auto;
  }
  .main_content .introduction {
    width: 100%;
    height: auto;
    padding: 5.525vw 0 3.1875vw;
    background: #fff;
  }
  .main_content .introduction .intro_box {
    width: 100%;
    height: auto;
  }
  .main_content .introduction .intro_box h3 {
    text-align: left;
    color: #111;
    font-size: 2.125vw;
    font-style: normal;
    font-weight: 400;
    line-height: normal;
  }
  .main_content .introduction .intro_box .line {
    margin-top: 1.0625vw;
    width: 2.65625vw;
    height: 0.58437vw;
    position: relative;
  }
  .main_content .introduction .intro_box .line::after {
    content: '';
    width: 2.65625vw;
    height: 0.58437vw;
    background: url(../png/line.png) no-repeat;
    background-size: 100% 100%;
    position: absolute;
    top: 0;
    left: 0;
  }
  .main_content .introduction .intro_box .intro_contnet {
    width: 63.75vw;
    height: auto;
    margin-top: 3.4vw;
  }
  .main_content .introduction .intro_box .intro_contnet p {
    text-align: left;
    color: #666;
    font-size: 0.85vw;
    font-style: normal;
    font-weight: 400;
    line-height: 1.59375vw;
    /* 187.5% */
  }
  .main_content .introduction .intro_box .intro_icon_box {
    width: 100%;
    height: auto;
    margin-top: 4.51562vw;
    display: flex;
    flex-direction: row;
  }
  .main_content .introduction .intro_box .intro_icon_box .intro_i_item {
    margin-right: 5.84375vw;
    display: flex;
    flex-direction: column;
    align-items: center;
  }
  .main_content .introduction .intro_box .intro_icon_box .intro_i_item:last-child {
    margin-right: 0;
  }
  .main_content .introduction .intro_box .intro_icon_box .intro_i_item .item_img {
    width: 3.71875vw;
    height: 3.71875vw;
  }
  .main_content .introduction .intro_box .intro_icon_box .intro_i_item .item_img img {
    width: 100%;
    height: 100%;
  }
  .main_content .introduction .intro_box .intro_icon_box .intro_i_item p {
    margin-top: 1.275vw;
    color: #666;
    font-size: 1.16875vw;
    font-style: normal;
    font-weight: 400;
    line-height: 1.59375vw;
    /* 136.364% */
  }
  .main_content .introduction .intro_box .intro_b_box {
    width: 100%;
    height: 26.5625vw;
    margin-top: 9.1375vw;
    position: relative;
  }
  .main_content .introduction .intro_box .intro_b_box .intro_b_b_img {
    width: 100%;
    height: 100%;
  }
  .main_content .introduction .intro_box .intro_b_box .intro_b_content {
    width: 27.89062vw;
    height: auto;
    position: absolute;
    top: 5.41875vw;
    left: 4.4625vw;
  }
  .main_content .introduction .intro_box .intro_b_box .intro_b_content .intro_b_title {
    text-align: left;
    color: #FFF;
    font-size: 2.125vw;
    font-style: normal;
    font-weight: 400;
    line-height: normal;
  }
  .main_content .introduction .intro_box .intro_b_box .intro_b_content .intro_b_desc {
    margin-top: 2.39062vw;
  }
  .main_content .introduction .intro_box .intro_b_box .intro_b_content .intro_b_desc p {
    text-align: left;
    color: #FFF;
    font-size: 0.85vw;
    font-style: normal;
    font-weight: 400;
    line-height: 1.59375vw;
    /* 187.5% */
  }
  .main_content .introduction .intro_box .intro_b_box .intro_b_img {
    width: 47.91875vw;
    height: 33.68125vw;
    position: absolute;
    bottom: 0;
    right: 0;
  }
  .main_content .introduction .intro_box .intro_b_box .intro_b_img img {
    width: 100%;
    height: 100%;
  }
  .main_content .advantages {
    width: 100%;
    height: auto;
    padding: 5.3125vw 0 3.29375vw;
  }
  .main_content .advantages .advant_box {
    width: 100%;
    height: auto;
    display: flex;
    flex-direction: row;
    justify-content: space-between;
  }
  .main_content .advantages .advant_box .advant_b_l {
    width: 31.98125vw;
    height: auto;
  }
  .main_content .advantages .advant_box .advant_b_l h3 {
    margin-top: 2.125vw;
    text-align: left;
    color: #111;
    font-size: 2.125vw;
    font-style: normal;
    font-weight: 400;
    line-height: normal;
  }
  .main_content .advantages .advant_box .advant_b_l .line {
    margin-top: 1.0625vw;
    width: 2.65625vw;
    height: 0.58437vw;
    position: relative;
  }
  .main_content .advantages .advant_box .advant_b_l .line::after {
    content: '';
    width: 2.65625vw;
    height: 0.58437vw;
    background: url(../png/line.png) no-repeat;
    background-size: 100% 100%;
    position: absolute;
    top: 0;
    left: 0;
  }
  .main_content .advantages .advant_box .advant_b_l .advant_b_l_box {
    width: 100%;
    height: auto;
    margin-top: 2.125vw;
  }
  .main_content .advantages .advant_box .advant_b_l .advant_b_l_box .item {
    width: 100%;
    height: auto;
    padding: 2.81562vw 0 2.7625vw;
    border-bottom: 0.05312vw solid #D9D9D9;
  }
  .main_content .advantages .advant_box .advant_b_l .advant_b_l_box .item .item_title {
    text-align: left;
    color: #111;
    font-size: 1.4875vw;
    font-style: normal;
    font-weight: 400;
    line-height: normal;
  }
  .main_content .advantages .advant_box .advant_b_l .advant_b_l_box .item .item_desc {
    text-align: left;
    margin-top: 1.0625vw;
    color: #666;
    font-size: 0.85vw;
    font-style: normal;
    font-weight: 400;
    line-height: 1.59375vw;
    /* 187.5% */
  }
  .main_content .advantages .advant_box .advant_b_r {
    width: 34vw;
    height: 43.5625vw;
    position: relative;
  }
  .main_content .advantages .advant_box .advant_b_r .advant_b_r_box {
    width: 100%;
    height: 100%;
  }
  .main_content .advantages .advant_box .advant_b_r .advant_b_r_box .ad_item {
    width: 100%;
    height: 100%;
  }
  .main_content .advantages .advant_box .advant_b_r .advant_b_r_box .ad_item img {
    width: 100%;
    height: 100%;
  }
  .main_content .advantages .advant_box .advant_b_r .swiper-button-prev {
    width: 3.1875vw;
    height: 3.1875vw;
    border-radius: 1.0625vw 0vw 0vw 0vw;
    background: #D80C18;
    display: flex;
    flex-direction: row;
    align-items: center;
    justify-content: center;
    left: -3.1875vw;
    top: unset;
    bottom: 0;
  }
  .main_content .advantages .advant_box .advant_b_r .swiper-button-prev img {
    width: 0.53125vw;
    transform: rotate(-180deg);
  }
  .main_content .advantages .advant_box .advant_b_r .swiper-button-prev::after {
    content: '';
  }
  .main_content .advantages .advant_box .advant_b_r .swiper-button-next {
    width: 3.1875vw;
    height: 3.1875vw;
    border-radius: 0vw 0vw 1.0625vw 0vw;
    background: #D80C18;
    display: flex;
    flex-direction: row;
    align-items: center;
    justify-content: center;
    right: unset;
    left: 0vw;
    top: unset;
    bottom: 0;
  }
  .main_content .advantages .advant_box .advant_b_r .swiper-button-next img {
    width: 0.53125vw;
  }
  .main_content .advantages .advant_box .advant_b_r .swiper-button-next::after {
    content: '';
  }
  .main_content .history {
    width: 100%;
    height: auto;
    padding: 5.3125vw 0 9.03125vw;
    background: #F9F9F9;
    display: flex;
    flex-direction: column;
    align-items: center;
  }
  .main_content .history .his_top {
    width: 100%;
    height: auto;
    display: flex;
    flex-direction: column;
    align-items: center;
  }
  .main_content .history .his_top h3 {
    color: #111;
    text-align: center;
    font-size: 2.125vw;
    font-style: normal;
    font-weight: 400;
    line-height: normal;
  }
  .main_content .history .his_top .line {
    margin-top: 1.0625vw;
    width: 2.65625vw;
    height: 0.58437vw;
    position: relative;
  }
  .main_content .history .his_top .line::after {
    content: '';
    width: 2.65625vw;
    height: 0.58437vw;
    background: url(../png/line.png) no-repeat;
    background-size: 100% 100%;
    position: absolute;
    top: 0;
    left: 0;
  }
  .main_content .history .his_center {
    width: 52.0625vw;
    height: 4.25vw;
    margin-top: 3.02812vw;
    display: flex;
    flex-direction: row;
    justify-content: center;
    position: relative;
  }
  .main_content .history .his_center .his_line {
    width: 42.5vw;
    height: 0.05312vw;
    background: #D9D9D9;
    position: absolute;
    top: 1.0625vw;
    left: 50%;
    transform: translateX(-50%);
  }
  .main_content .history .his_center .swiper-button-prev {
    width: 2.65625vw;
    height: 2.65625vw;
    left: 0vw;
    top: 0.95625vw;
  }
  .main_content .history .his_center .swiper-button-prev:hover img:first-child {
    display: none;
  }
  .main_content .history .his_center .swiper-button-prev:hover img:last-child {
    display: block;
  }
  .main_content .history .his_center .swiper-button-prev img {
    width: 100%;
    height: 100%;
  }
  .main_content .history .his_center .swiper-button-prev img:first-child {
    display: block;
  }
  .main_content .history .his_center .swiper-button-prev img:last-child {
    display: none;
  }
  .main_content .history .his_center .swiper-button-prev::after {
    content: '';
  }
  .main_content .history .his_center .swiper-button-next {
    width: 2.65625vw;
    height: 2.65625vw;
    right: 0;
    top: 0.95625vw;
  }
  .main_content .history .his_center .swiper-button-next:hover img:first-child {
    display: none;
  }
  .main_content .history .his_center .swiper-button-next:hover img:last-child {
    display: block;
  }
  .main_content .history .his_center .swiper-button-next img {
    width: 100%;
    height: 100%;
  }
  .main_content .history .his_center .swiper-button-next img:first-child {
    display: block;
  }
  .main_content .history .his_center .swiper-button-next img:last-child {
    display: none;
  }
  .main_content .history .his_center .swiper-button-next::after {
    content: '';
  }
  .main_content .history .his_center .his_c_box {
    padding-top: 0.85vw;
    width: 34vw;
    height: auto;
    position: relative;
  }
  .main_content .history .his_center .his_c_box .his_item {
    width: auto !important;
    margin-right: 3.71875vw;
    display: flex;
    flex-direction: column;
    align-items: center;
  }
  .main_content .history .his_center .his_c_box .his_item.swiper-slide-active .cri {
    background: #D80C18;
    border: 0.05312vw solid #D80C18;
  }
  .main_content .history .his_center .his_c_box .his_item.swiper-slide-active p {
    color: #D80C18;
  }
  .main_content .history .his_center .his_c_box .his_item .cri {
    width: 0.53125vw;
    height: 0.53125vw;
    background: #fff;
    border-radius: 50%;
    border: 0.05312vw solid #B4B4B4;
  }
  .main_content .history .his_center .his_c_box .his_item p {
    margin-top: 0.85vw;
    color: #999;
    font-size: 0.95625vw;
    font-style: normal;
    font-weight: 400;
    line-height: normal;
  }
  .main_content .history .his_center1 {
    width: 100%;
    height: auto;
    position: relative;
  }
  .main_content .history .his_center1 .his_c1_img {
    position: absolute;
    right: 10.4%;
    top: 2.65625vw;
    z-index: 1;
  }
  .main_content .history .his_center1 .his_c1_box {
    width: 100%;
    height: auto;
    margin-top: -2.65625vw;
  }
  .main_content .history .his_center1 .his_c1_box .his_c1_item {
    width: 52.0625vw !important;
    height: auto;
    position: relative;
  }
  .main_content .history .his_center1 .his_c1_box .his_c1_item.swiper-slide-active .his_b_b_item {
    display: block;
  }
  .main_content .history .his_center1 .his_c1_box .his_c1_item > p {
    position: absolute;
    top: 0%;
    left: 50%;
    z-index: 1;
    transform: translateX(-50%);
    text-align: center;
    font-family: 'DIN';
    font-size: 14.875vw;
    font-style: normal;
    font-weight: 700;
    line-height: normal;
    background: linear-gradient(180deg, #EDEDED 18.46%, rgba(236, 236, 236, 0) 82.64%);
    background-clip: text;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
  }
  .main_content .history .his_center1 .his_c1_box .his_c1_item .his_b_b_item {
    position: relative;
    z-index: 2;
    padding-top: 11.05vw;
    height: auto;
    width: 100%;
    display: none;
  }
  .main_content .history .his_center1 .his_c1_box .his_c1_item .his_b_b_item .item {
    width: 100%;
    height: auto;
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    margin-bottom: 1.7vw;
  }
  .main_content .history .his_center1 .his_c1_box .his_c1_item .his_b_b_item .item .item_date {
    color: #111;
    font-size: 1.4875vw;
    font-style: normal;
    font-weight: 400;
    line-height: 1.85938vw;
    /* 125% */
  }
  .main_content .history .his_center1 .his_c1_box .his_c1_item .his_b_b_item .item .item_desc {
    text-align: left;
    margin-top: 0.2125vw;
    color: #666;
    font-size: 0.85vw;
    font-style: normal;
    font-weight: 400;
    line-height: 1.59375vw;
    /* 187.5% */
  }
  .main_content .social {
    width: 100%;
    height: 49.40625vw;
    position: relative;
  }
  .main_content .social img {
    width: 100%;
    height: 100%;
    object-fit: cover;
  }
  .main_content .social .mask {
    width: 100%;
    height: 100%;
    position: absolute;
    top: 0;
    left: 0;
    background: rgba(0, 0, 0, 0.15);
    z-index: 1;
  }
  .main_content .social .social_box {
    width: 100%;
    height: 100%;
    position: absolute;
    top: 0;
    left: 0;
    z-index: 2;
    padding-top: 8.34062vw;
  }
  .main_content .social .social_box h3 {
    text-align: left;
    color: #fff;
    font-size: 2.125vw;
    font-style: normal;
    font-weight: 400;
    line-height: normal;
  }
  .main_content .social .social_box .line {
    margin-top: 1.0625vw;
    width: 2.65625vw;
    height: 0.58437vw;
    position: relative;
  }
  .main_content .social .social_box .line::after {
    content: '';
    width: 2.65625vw;
    height: 0.58437vw;
    background: url(../png/line.png) no-repeat;
    background-size: 100% 100%;
    position: absolute;
    top: 0;
    left: 0;
  }
  .main_content .social .social_box .social_content {
    width: 100%;
    height: auto;
    display: flex;
    flex-direction: row;
    justify-content: space-between;
    margin-top: 6.48125vw;
  }
  .main_content .social .social_box .social_content .item {
    width: 23.375vw;
    height: auto;
    display: flex;
    flex-direction: column;
    align-items: flex-start;
  }
  .main_content .social .social_box .social_content .item .item_icon {
    width: 5.3125vw;
    height: 5.3125vw;
  }
  .main_content .social .social_box .social_content .item .item_icon img {
    width: 100%;
    height: 100%;
  }
  .main_content .social .social_box .social_content .item .item_line {
    width: 100%;
    height: 0.05312vw;
    margin-top: 1.59375vw;
    background: #D9D9D9;
  }
  .main_content .social .social_box .social_content .item .item_title {
    margin-top: 1.96562vw;
    color: #FFF;
    font-size: 1.4875vw;
    font-style: normal;
    font-weight: 400;
    line-height: normal;
  }
  .main_content .social .social_box .social_content .item .item_desc {
    margin-top: 1.59375vw;
    text-align: left;
    color: #FFF;
    font-size: 0.85vw;
    font-style: normal;
    font-weight: 400;
    line-height: 1.59375vw;
    /* 187.5% */
  }
  .main_content .parent {
    width: 100%;
    height: auto;
    padding: 6.53437vw 0 7.49062vw;
    background: #fff;
  }
  .main_content .parent .parent_title {
    display: flex;
    flex-direction: column;
    align-items: center;
  }
  .main_content .parent .parent_title h3 {
    color: #111;
    font-size: 2.125vw;
    font-style: normal;
    font-weight: 400;
    line-height: normal;
  }
  .main_content .parent .parent_title .line {
    margin-top: 1.0625vw;
    width: 2.65625vw;
    height: 0.58437vw;
    position: relative;
  }
  .main_content .parent .parent_title .line::after {
    content: '';
    width: 2.65625vw;
    height: 0.58437vw;
    background: url(../png/line.png) no-repeat;
    background-size: 100% 100%;
    position: absolute;
    top: 0;
    left: 0;
  }
  .main_content .parent .parent_box {
    width: 100%;
    height: auto;
    margin-top: 0.6375vw;
  }
  .main_content .parent .parent_box .parent_r {
    margin-top: 1.4875vw;
    width: 100%;
    height: 8.5vw;
    position: relative;
    overflow: hidden;
  }
  .main_content .parent .parent_box .parent_r .parent_r_img {
    width: 12.21875vw;
    height: 6.375vw;
    position: absolute;
    top: 0;
    right: 0;
    z-index: 2;
    background: linear-gradient(270deg, #FFF 38.26%, rgba(255, 255, 255, 0) 100%);
  }
  .main_content .parent .parent_box .parent_r .parent_r_box {
    overflow: visible;
    width: 100%;
    height: 6.375vw;
    position: absolute;
    top: 0;
    left: 0;
    z-index: 1;
    display: flex;
    flex-direction: row;
    align-items: center;
  }
  .main_content .parent .parent_box .parent_r .parent_r_box .str_move {
    overflow: visible;
    display: flex;
    flex-direction: row;
    align-items: center;
  }
  .main_content .parent .parent_box .parent_r .parent_r_box .item {
    width: 12.21875vw;
    height: 6.375vw;
    margin-right: 1.4875vw;
    display: flex;
    flex-direction: row;
    align-items: center;
    justify-content: center;
  }
  .main_content .parent .parent_box .parent_r .parent_r_box .item:hover {
    background: #FFF;
    box-shadow: 0vw 0.53125vw 1.0625vw 0vw rgba(65, 0, 0, 0.15);
  }
  .main_content .parent .parent_box .parent_r .parent_r_box .item img {
    max-width: 8.625vw !important;
    height: auto;
  }
  .main_content .parent .parent_box .parent_l {
    margin-top: 1.4875vw;
    width: 100%;
    height: 8.5vw;
    position: relative;
    overflow: hidden;
  }
  .main_content .parent .parent_box .parent_l .parent_l_img {
    width: 12.21875vw;
    height: 6.375vw;
    position: absolute;
    top: 0;
    left: 0;
    z-index: 2;
    background: linear-gradient(270deg, rgba(255, 255, 255, 0) 23.04%, #FFF 67.83%);
  }
  .main_content .parent .parent_box .parent_l .parent_l_box {
    overflow: visible;
    width: 100%;
    height: 6.375vw;
    position: absolute;
    top: 0;
    left: 0;
    z-index: 1;
    display: flex;
    flex-direction: row;
    align-items: center;
  }
  .main_content .parent .parent_box .parent_l .parent_l_box .str_move {
    overflow: visible;
    display: flex;
    flex-direction: row;
    align-items: center;
  }
  .main_content .parent .parent_box .parent_l .parent_l_box .item {
    width: 12.21875vw;
    height: 6.375vw;
    margin-right: 1.4875vw;
    display: flex;
    flex-direction: row;
    align-items: center;
    justify-content: center;
  }
  .main_content .parent .parent_box .parent_l .parent_l_box .item:hover {
    background: #FFF;
    box-shadow: 0vw 0.53125vw 1.0625vw 0vw rgba(65, 0, 0, 0.15);
  }
  .main_content .parent .parent_box .parent_l .parent_l_box .item img {
    max-width: 8.625vw !important;
    height: auto;
  }
}

@media screen and (max-width: 1400px) {
  .header {
    transition: all 0.6s;
    background: #fff;
    backdrop-filter: blur(0vw);
    box-shadow: 0vw 0.12143vw 0.48571vw 0vw rgba(0, 0, 0, 0.1);
  }
  .header.active1 {
    top: -5.46429vw;
  }
  .header .header_box .header_top .header_t_box .logo img:first-child {
    display: none;
  }
  .header .header_box .header_top .header_t_box .logo img:last-child {
    display: block;
  }
  .header .header_box .header_top .header_t_box .header_nav .haeder_nav_box .nav_item a {
    color: #111;
  }
  .banner {
    width: 100%;
    height: 51.97143vw;
    position: relative;
    margin-top: 5.34286vw;
  }
  .banner img {
    width: 100%;
    height: 100%;
    object-fit: cover;
  }
  .banner .mask {
    position: absolute;
    width: 100%;
    height: 100%;
    top: 0;
    left: 0;
    background: rgba(0, 0, 0, 0.3);
  }
  .banner .banner_box {
    width: 100%;
    height: 100%;
    position: absolute;
    top: 0;
    left: 0;
    z-index: 2;
  }
  .banner .banner_box .banner_contnet {
    position: absolute;
    bottom: 4.97857vw;
    left: 0;
    display: flex;
    flex-direction: column;
    align-items: flex-start;
  }
  .banner .banner_box .banner_contnet h3 {
    text-align: left;
    color: #FFF;
    font-size: 3.03571vw;
    font-style: normal;
    font-weight: 400;
    line-height: 3.64286vw;
    /* 120% */
    text-transform: uppercase;
  }
  .banner .banner_box .banner_contnet h3 span {
    color: #D80C18;
  }
  .banner .banner_box .banner_contnet .line {
    margin-top: 1.94286vw;
    width: 100%;
    height: 0.66786vw;
    position: relative;
  }
  .banner .banner_box .banner_contnet .line::after {
    content: '';
    width: 3.03571vw;
    height: 0.66786vw;
    background: url(../png/line.png) no-repeat;
    background-size: 100% 100%;
    position: absolute;
    top: 0;
    left: 0;
  }
  .banner .banner_box .banner_contnet p {
    margin-top: 1.94286vw;
    color: #FFF;
    text-align: left;
    font-size: 2.42857vw;
    font-style: normal;
    font-weight: 400;
    line-height: normal;
    letter-spacing: 0.12143vw;
  }
  .nav_tab {
    width: 100%;
    height: 6.07143vw;
    background: #F9F9F9;
    position: static;
  }
  .nav_tab.active {
    position: fixed;
    top: 0;
    left: 0;
    z-index: 21;
  }
  .nav_tab .tab_box {
    width: 100%;
    height: 100%;
    display: flex;
    flex-direction: row;
    align-items: center;
  }
  .nav_tab .tab_box .tab_item {
    margin-right: 7.77143vw;
    cursor: pointer;
    height: 100%;
    color: #999;
    font-size: 1.21429vw;
    font-style: normal;
    font-weight: 400;
    line-height: 6.07143vw;
  }
  .nav_tab .tab_box .tab_item:last-child {
    margin-right: 0;
  }
  .nav_tab .tab_box .tab_item.active {
    color: #D80C18;
  }
  .main_content {
    width: 100%;
    height: auto;
  }
  .main_content .introduction {
    width: 100%;
    height: auto;
    padding: 6.31429vw 0 3.64286vw;
    background: #fff;
  }
  .main_content .introduction .intro_box {
    width: 100%;
    height: auto;
  }
  .main_content .introduction .intro_box h3 {
    text-align: left;
    color: #111;
    font-size: 2.42857vw;
    font-style: normal;
    font-weight: 400;
    line-height: normal;
  }
  .main_content .introduction .intro_box .line {
    margin-top: 1.21429vw;
    width: 3.03571vw;
    height: 0.66786vw;
    position: relative;
  }
  .main_content .introduction .intro_box .line::after {
    content: '';
    width: 3.03571vw;
    height: 0.66786vw;
    background: url(../png/line.png) no-repeat;
    background-size: 100% 100%;
    position: absolute;
    top: 0;
    left: 0;
  }
  .main_content .introduction .intro_box .intro_contnet {
    width: 72.85714vw;
    height: auto;
    margin-top: 3.88571vw;
  }
  .main_content .introduction .intro_box .intro_contnet p {
    text-align: left;
    color: #666;
    font-size: 0.97143vw;
    font-style: normal;
    font-weight: 400;
    line-height: 1.82143vw;
    /* 187.5% */
  }
  .main_content .introduction .intro_box .intro_icon_box {
    width: 100%;
    height: auto;
    margin-top: 5.16071vw;
    display: flex;
    flex-direction: row;
  }
  .main_content .introduction .intro_box .intro_icon_box .intro_i_item {
    margin-right: 6.67857vw;
    display: flex;
    flex-direction: column;
    align-items: center;
  }
  .main_content .introduction .intro_box .intro_icon_box .intro_i_item:last-child {
    margin-right: 0;
  }
  .main_content .introduction .intro_box .intro_icon_box .intro_i_item .item_img {
    width: 4.25vw;
    height: 4.25vw;
  }
  .main_content .introduction .intro_box .intro_icon_box .intro_i_item .item_img img {
    width: 100%;
    height: 100%;
  }
  .main_content .introduction .intro_box .intro_icon_box .intro_i_item p {
    margin-top: 1.45714vw;
    color: #666;
    font-size: 1.33571vw;
    font-style: normal;
    font-weight: 400;
    line-height: 1.82143vw;
    /* 136.364% */
  }
  .main_content .introduction .intro_box .intro_b_box {
    width: 100%;
    height: 30.35714vw;
    margin-top: 10.44286vw;
    position: relative;
  }
  .main_content .introduction .intro_box .intro_b_box .intro_b_b_img {
    width: 100%;
    height: 100%;
  }
  .main_content .introduction .intro_box .intro_b_box .intro_b_content {
    width: 31.875vw;
    height: auto;
    position: absolute;
    top: 6.19286vw;
    left: 5.1vw;
  }
  .main_content .introduction .intro_box .intro_b_box .intro_b_content .intro_b_title {
    text-align: left;
    color: #FFF;
    font-size: 2.42857vw;
    font-style: normal;
    font-weight: 400;
    line-height: normal;
  }
  .main_content .introduction .intro_box .intro_b_box .intro_b_content .intro_b_desc {
    margin-top: 2.73214vw;
  }
  .main_content .introduction .intro_box .intro_b_box .intro_b_content .intro_b_desc p {
    text-align: left;
    color: #FFF;
    font-size: 0.97143vw;
    font-style: normal;
    font-weight: 400;
    line-height: 1.82143vw;
    /* 187.5% */
  }
  .main_content .introduction .intro_box .intro_b_box .intro_b_img {
    width: 54.76429vw;
    height: 38.49286vw;
    position: absolute;
    bottom: 0;
    right: 0;
  }
  .main_content .introduction .intro_box .intro_b_box .intro_b_img img {
    width: 100%;
    height: 100%;
  }
  .main_content .advantages {
    width: 100%;
    height: auto;
    padding: 6.07143vw 0 3.76429vw;
  }
  .main_content .advantages .advant_box {
    width: 100%;
    height: auto;
    display: flex;
    flex-direction: row;
    justify-content: space-between;
  }
  .main_content .advantages .advant_box .advant_b_l {
    width: 36.55vw;
    height: auto;
  }
  .main_content .advantages .advant_box .advant_b_l h3 {
    margin-top: 2.42857vw;
    text-align: left;
    color: #111;
    font-size: 2.42857vw;
    font-style: normal;
    font-weight: 400;
    line-height: normal;
  }
  .main_content .advantages .advant_box .advant_b_l .line {
    margin-top: 1.21429vw;
    width: 3.03571vw;
    height: 0.66786vw;
    position: relative;
  }
  .main_content .advantages .advant_box .advant_b_l .line::after {
    content: '';
    width: 3.03571vw;
    height: 0.66786vw;
    background: url(../png/line.png) no-repeat;
    background-size: 100% 100%;
    position: absolute;
    top: 0;
    left: 0;
  }
  .main_content .advantages .advant_box .advant_b_l .advant_b_l_box {
    width: 100%;
    height: auto;
    margin-top: 2.42857vw;
  }
  .main_content .advantages .advant_box .advant_b_l .advant_b_l_box .item {
    width: 100%;
    height: auto;
    padding: 3.21786vw 0 3.15714vw;
    border-bottom: 0.06071vw solid #D9D9D9;
  }
  .main_content .advantages .advant_box .advant_b_l .advant_b_l_box .item .item_title {
    text-align: left;
    color: #111;
    font-size: 1.7vw;
    font-style: normal;
    font-weight: 400;
    line-height: normal;
  }
  .main_content .advantages .advant_box .advant_b_l .advant_b_l_box .item .item_desc {
    text-align: left;
    margin-top: 1.21429vw;
    color: #666;
    font-size: 0.97143vw;
    font-style: normal;
    font-weight: 400;
    line-height: 1.82143vw;
    /* 187.5% */
  }
  .main_content .advantages .advant_box .advant_b_r {
    width: 38.85714vw;
    height: 49.78571vw;
    position: relative;
  }
  .main_content .advantages .advant_box .advant_b_r .advant_b_r_box {
    width: 100%;
    height: 100%;
  }
  .main_content .advantages .advant_box .advant_b_r .advant_b_r_box .ad_item {
    width: 100%;
    height: 100%;
  }
  .main_content .advantages .advant_box .advant_b_r .advant_b_r_box .ad_item img {
    width: 100%;
    height: 100%;
  }
  .main_content .advantages .advant_box .advant_b_r .swiper-button-prev {
    width: 3.64286vw;
    height: 3.64286vw;
    border-radius: 1.21429vw 0vw 0vw 0vw;
    background: #D80C18;
    display: flex;
    flex-direction: row;
    align-items: center;
    justify-content: center;
    left: -3.64286vw;
    top: unset;
    bottom: 0;
  }
  .main_content .advantages .advant_box .advant_b_r .swiper-button-prev img {
    width: 0.60714vw;
    transform: rotate(-180deg);
  }
  .main_content .advantages .advant_box .advant_b_r .swiper-button-prev::after {
    content: '';
  }
  .main_content .advantages .advant_box .advant_b_r .swiper-button-next {
    width: 3.64286vw;
    height: 3.64286vw;
    border-radius: 0vw 0vw 1.21429vw 0vw;
    background: #D80C18;
    display: flex;
    flex-direction: row;
    align-items: center;
    justify-content: center;
    right: unset;
    left: 0vw;
    top: unset;
    bottom: 0;
  }
  .main_content .advantages .advant_box .advant_b_r .swiper-button-next img {
    width: 0.60714vw;
  }
  .main_content .advantages .advant_box .advant_b_r .swiper-button-next::after {
    content: '';
  }
  .main_content .history {
    width: 100%;
    height: auto;
    padding: 6.07143vw 0 10.32143vw;
    background: #F9F9F9;
    display: flex;
    flex-direction: column;
    align-items: center;
  }
  .main_content .history .his_top {
    width: 100%;
    height: auto;
    display: flex;
    flex-direction: column;
    align-items: center;
  }
  .main_content .history .his_top h3 {
    color: #111;
    text-align: center;
    font-size: 2.42857vw;
    font-style: normal;
    font-weight: 400;
    line-height: normal;
  }
  .main_content .history .his_top .line {
    margin-top: 1.21429vw;
    width: 3.03571vw;
    height: 0.66786vw;
    position: relative;
  }
  .main_content .history .his_top .line::after {
    content: '';
    width: 3.03571vw;
    height: 0.66786vw;
    background: url(../png/line.png) no-repeat;
    background-size: 100% 100%;
    position: absolute;
    top: 0;
    left: 0;
  }
  .main_content .history .his_center {
    width: 59.5vw;
    height: 4.85714vw;
    margin-top: 3.46071vw;
    display: flex;
    flex-direction: row;
    justify-content: center;
    position: relative;
  }
  .main_content .history .his_center .his_line {
    width: 48.57143vw;
    height: 0.06071vw;
    background: #D9D9D9;
    position: absolute;
    top: 1.21429vw;
    left: 50%;
    transform: translateX(-50%);
  }
  .main_content .history .his_center .swiper-button-prev {
    width: 3.03571vw;
    height: 3.03571vw;
    left: 0vw;
    top: 1.09286vw;
  }
  .main_content .history .his_center .swiper-button-prev:hover img:first-child {
    display: none;
  }
  .main_content .history .his_center .swiper-button-prev:hover img:last-child {
    display: block;
  }
  .main_content .history .his_center .swiper-button-prev img {
    width: 100%;
    height: 100%;
  }
  .main_content .history .his_center .swiper-button-prev img:first-child {
    display: block;
  }
  .main_content .history .his_center .swiper-button-prev img:last-child {
    display: none;
  }
  .main_content .history .his_center .swiper-button-prev::after {
    content: '';
  }
  .main_content .history .his_center .swiper-button-next {
    width: 3.03571vw;
    height: 3.03571vw;
    right: 0;
    top: 1.09286vw;
  }
  .main_content .history .his_center .swiper-button-next:hover img:first-child {
    display: none;
  }
  .main_content .history .his_center .swiper-button-next:hover img:last-child {
    display: block;
  }
  .main_content .history .his_center .swiper-button-next img {
    width: 100%;
    height: 100%;
  }
  .main_content .history .his_center .swiper-button-next img:first-child {
    display: block;
  }
  .main_content .history .his_center .swiper-button-next img:last-child {
    display: none;
  }
  .main_content .history .his_center .swiper-button-next::after {
    content: '';
  }
  .main_content .history .his_center .his_c_box {
    padding-top: 0.97143vw;
    width: 38.85714vw;
    height: auto;
    position: relative;
  }
  .main_content .history .his_center .his_c_box .his_item {
    width: auto !important;
    margin-right: 4.25vw;
    display: flex;
    flex-direction: column;
    align-items: center;
  }
  .main_content .history .his_center .his_c_box .his_item.swiper-slide-active .cri {
    background: #D80C18;
    border: 0.06071vw solid #D80C18;
  }
  .main_content .history .his_center .his_c_box .his_item.swiper-slide-active p {
    color: #D80C18;
  }
  .main_content .history .his_center .his_c_box .his_item .cri {
    width: 0.60714vw;
    height: 0.60714vw;
    background: #fff;
    border-radius: 50%;
    border: 0.06071vw solid #B4B4B4;
  }
  .main_content .history .his_center .his_c_box .his_item p {
    margin-top: 0.97143vw;
    color: #999;
    font-size: 1.09286vw;
    font-style: normal;
    font-weight: 400;
    line-height: normal;
  }
  .main_content .history .his_center1 {
    width: 100%;
    height: auto;
    position: relative;
  }
  .main_content .history .his_center1 .his_c1_img {
    position: absolute;
    right: 10.4%;
    top: 3.03571vw;
    z-index: 1;
  }
  .main_content .history .his_center1 .his_c1_box {
    width: 100%;
    height: auto;
    margin-top: -3.03571vw;
  }
  .main_content .history .his_center1 .his_c1_box .his_c1_item {
    width: 59.5vw !important;
    height: auto;
    position: relative;
  }
  .main_content .history .his_center1 .his_c1_box .his_c1_item.swiper-slide-active .his_b_b_item {
    display: block;
  }
  .main_content .history .his_center1 .his_c1_box .his_c1_item > p {
    position: absolute;
    top: 0%;
    left: 50%;
    z-index: 1;
    transform: translateX(-50%);
    text-align: center;
    font-family: 'DIN';
    font-size: 17vw;
    font-style: normal;
    font-weight: 700;
    line-height: normal;
    background: linear-gradient(180deg, #EDEDED 18.46%, rgba(236, 236, 236, 0) 82.64%);
    background-clip: text;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
  }
  .main_content .history .his_center1 .his_c1_box .his_c1_item .his_b_b_item {
    position: relative;
    z-index: 2;
    padding-top: 12.62857vw;
    height: auto;
    width: 100%;
    display: none;
  }
  .main_content .history .his_center1 .his_c1_box .his_c1_item .his_b_b_item .item {
    width: 100%;
    height: auto;
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    margin-bottom: 1.94286vw;
  }
  .main_content .history .his_center1 .his_c1_box .his_c1_item .his_b_b_item .item .item_date {
    color: #111;
    font-size: 1.7vw;
    font-style: normal;
    font-weight: 400;
    line-height: 2.125vw;
    /* 125% */
  }
  .main_content .history .his_center1 .his_c1_box .his_c1_item .his_b_b_item .item .item_desc {
    text-align: left;
    margin-top: 0.24286vw;
    color: #666;
    font-size: 0.97143vw;
    font-style: normal;
    font-weight: 400;
    line-height: 1.82143vw;
    /* 187.5% */
  }
  .main_content .social {
    width: 100%;
    height: 56.46429vw;
    position: relative;
  }
  .main_content .social img {
    width: 100%;
    height: 100%;
    object-fit: cover;
  }
  .main_content .social .mask {
    width: 100%;
    height: 100%;
    position: absolute;
    top: 0;
    left: 0;
    background: rgba(0, 0, 0, 0.15);
    z-index: 1;
  }
  .main_content .social .social_box {
    width: 100%;
    height: 100%;
    position: absolute;
    top: 0;
    left: 0;
    z-index: 2;
    padding-top: 9.53214vw;
  }
  .main_content .social .social_box h3 {
    text-align: left;
    color: #fff;
    font-size: 2.42857vw;
    font-style: normal;
    font-weight: 400;
    line-height: normal;
  }
  .main_content .social .social_box .line {
    margin-top: 1.21429vw;
    width: 3.03571vw;
    height: 0.66786vw;
    position: relative;
  }
  .main_content .social .social_box .line::after {
    content: '';
    width: 3.03571vw;
    height: 0.66786vw;
    background: url(../png/line.png) no-repeat;
    background-size: 100% 100%;
    position: absolute;
    top: 0;
    left: 0;
  }
  .main_content .social .social_box .social_content {
    width: 100%;
    height: auto;
    display: flex;
    flex-direction: row;
    justify-content: space-between;
    margin-top: 7.40714vw;
  }
  .main_content .social .social_box .social_content .item {
    width: 26.71429vw;
    height: auto;
    display: flex;
    flex-direction: column;
    align-items: flex-start;
  }
  .main_content .social .social_box .social_content .item .item_icon {
    width: 6.07143vw;
    height: 6.07143vw;
  }
  .main_content .social .social_box .social_content .item .item_icon img {
    width: 100%;
    height: 100%;
  }
  .main_content .social .social_box .social_content .item .item_line {
    width: 100%;
    height: 0.06071vw;
    margin-top: 1.82143vw;
    background: #D9D9D9;
  }
  .main_content .social .social_box .social_content .item .item_title {
    margin-top: 2.24643vw;
    color: #FFF;
    font-size: 1.7vw;
    font-style: normal;
    font-weight: 400;
    line-height: normal;
  }
  .main_content .social .social_box .social_content .item .item_desc {
    margin-top: 1.82143vw;
    text-align: left;
    color: #FFF;
    font-size: 0.97143vw;
    font-style: normal;
    font-weight: 400;
    line-height: 1.82143vw;
    /* 187.5% */
  }
  .main_content .parent {
    width: 100%;
    height: auto;
    padding: 7.46786vw 0 8.56071vw;
    background: #fff;
  }
  .main_content .parent .parent_title {
    display: flex;
    flex-direction: column;
    align-items: center;
  }
  .main_content .parent .parent_title h3 {
    color: #111;
    font-size: 2.42857vw;
    font-style: normal;
    font-weight: 400;
    line-height: normal;
  }
  .main_content .parent .parent_title .line {
    margin-top: 1.21429vw;
    width: 3.03571vw;
    height: 0.66786vw;
    position: relative;
  }
  .main_content .parent .parent_title .line::after {
    content: '';
    width: 3.03571vw;
    height: 0.66786vw;
    background: url(../png/line.png) no-repeat;
    background-size: 100% 100%;
    position: absolute;
    top: 0;
    left: 0;
  }
  .main_content .parent .parent_box {
    width: 100%;
    height: auto;
    margin-top: 0.72857vw;
  }
  .main_content .parent .parent_box .parent_r {
    margin-top: 1.7vw;
    width: 100%;
    height: 9.71429vw;
    position: relative;
    overflow: hidden;
  }
  .main_content .parent .parent_box .parent_r .parent_r_img {
    width: 13.96429vw;
    height: 7.28571vw;
    position: absolute;
    top: 0;
    right: 0;
    z-index: 2;
    background: linear-gradient(270deg, #FFF 38.26%, rgba(255, 255, 255, 0) 100%);
  }
  .main_content .parent .parent_box .parent_r .parent_r_box {
    overflow: visible;
    width: 100%;
    height: 7.28571vw;
    position: absolute;
    top: 0;
    left: 0;
    z-index: 1;
    display: flex;
    flex-direction: row;
    align-items: center;
  }
  .main_content .parent .parent_box .parent_r .parent_r_box .str_move {
    overflow: visible;
    display: flex;
    flex-direction: row;
    align-items: center;
  }
  .main_content .parent .parent_box .parent_r .parent_r_box .item {
    width: 13.96429vw;
    height: 7.28571vw;
    margin-right: 1.7vw;
    display: flex;
    flex-direction: row;
    align-items: center;
    justify-content: center;
  }
  .main_content .parent .parent_box .parent_r .parent_r_box .item:hover {
    background: #FFF;
    box-shadow: 0vw 0.60714vw 1.21429vw 0vw rgba(65, 0, 0, 0.15);
  }
  .main_content .parent .parent_box .parent_r .parent_r_box .item img {
    max-width: 10.14286vw !important;
    height: auto;
  }
  .main_content .parent .parent_box .parent_l {
    margin-top: 1.7vw;
    width: 100%;
    height: 9.71429vw;
    position: relative;
    overflow: hidden;
  }
  .main_content .parent .parent_box .parent_l .parent_l_img {
    width: 13.96429vw;
    height: 7.28571vw;
    position: absolute;
    top: 0;
    left: 0;
    z-index: 2;
    background: linear-gradient(270deg, rgba(255, 255, 255, 0) 23.04%, #FFF 67.83%);
  }
  .main_content .parent .parent_box .parent_l .parent_l_box {
    overflow: visible;
    width: 100%;
    height: 7.28571vw;
    position: absolute;
    top: 0;
    left: 0;
    z-index: 1;
    display: flex;
    flex-direction: row;
    align-items: center;
  }
  .main_content .parent .parent_box .parent_l .parent_l_box .str_move {
    overflow: visible;
    display: flex;
    flex-direction: row;
    align-items: center;
  }
  .main_content .parent .parent_box .parent_l .parent_l_box .item {
    width: 13.96429vw;
    height: 7.28571vw;
    margin-right: 1.7vw;
    display: flex;
    flex-direction: row;
    align-items: center;
    justify-content: center;
  }
  .main_content .parent .parent_box .parent_l .parent_l_box .item:hover {
    background: #FFF;
    box-shadow: 0vw 0.60714vw 1.21429vw 0vw rgba(65, 0, 0, 0.15);
  }
  .main_content .parent .parent_box .parent_l .parent_l_box .item img {
    max-width: 10.14286vw !important;
    height: auto;
  }
}

@media screen and (max-width: 1024px) {
  .banner {
    width: 100%;
    height: 100vh;
    position: relative;
    margin-top: 13.33333vw;
  }
  .banner img {
    margin-left: -50%;
    width: 150%;
    height: 100%;
    object-fit: cover;
  }
  .banner .mask {
    position: absolute;
    width: 100%;
    height: 100%;
    top: 0;
    left: 0;
    background: rgba(0, 0, 0, 0.3);
  }
  .banner .banner_box {
    width: 100%;
    height: 100%;
    position: absolute;
    top: 0;
    left: 0;
    z-index: 2;
  }
  .banner .banner_box .banner_contnet {
    position: absolute;
    bottom: 20.8vw;
    left: 0;
    display: flex;
    flex-direction: column;
    align-items: flex-start;
  }
  .banner .banner_box .banner_contnet h3 {
    text-align: left;
    color: #FFF;
    font-size: 6.66667vw;
    font-style: normal;
    font-weight: 400;
    line-height: 8vw;
    /* 120% */
    text-transform: uppercase;
  }
  .banner .banner_box .banner_contnet h3 span {
    color: #D80C18;
  }
  .banner .banner_box .banner_contnet .line {
    margin-top: 4.26667vw;
    width: 100%;
    height: 1.46667vw;
    position: relative;
  }
  .banner .banner_box .banner_contnet .line::after {
    content: '';
    width: 6.66667vw;
    height: 1.46667vw;
    background: url(../png/line.png) no-repeat;
    background-size: 100% 100%;
    position: absolute;
    top: 0;
    left: 0;
  }
  .banner .banner_box .banner_contnet p {
    margin-top: 4.26667vw;
    color: #FFF;
    text-align: left;
    font-size: 5.6vw;
    font-style: normal;
    font-weight: 400;
    line-height: normal;
    letter-spacing: 0.26667vw;
  }
  .nav_tab {
    width: 100%;
    height: 13.33333vw;
    background: #F9F9F9;
    position: static;
  }
  .nav_tab.active {
    position: fixed;
    top: 0;
    left: 0;
    z-index: 21;
  }
  .nav_tab .tab_box {
    width: 100%;
    height: 100%;
    display: flex;
    flex-direction: row;
    align-items: center;
    overflow: hidden;
    overflow-x: auto;
  }
  .nav_tab .tab_box .tab_item {
    flex-shrink: 0;
    margin-right: 12.13333vw;
    cursor: pointer;
    height: 100%;
    color: #999;
    font-size: 4vw;
    font-style: normal;
    font-weight: 400;
    line-height: 13.33333vw;
  }
  .nav_tab .tab_box .tab_item:last-child {
    margin-right: 0;
  }
  .nav_tab .tab_box .tab_item.active {
    color: #D80C18;
  }
  .main_content {
    width: 100%;
    height: auto;
  }
  .main_content .introduction {
    width: 100%;
    height: auto;
    padding: 13.86667vw 0 8vw;
    background: #fff;
  }
  .main_content .introduction .intro_box {
    width: 100%;
    height: auto;
  }
  .main_content .introduction .intro_box h3 {
    text-align: center;
    color: #111;
    font-size: 5.6vw;
    font-style: normal;
    font-weight: 400;
    line-height: normal;
  }
  .main_content .introduction .intro_box .line {
    margin: 0 auto;
    margin-top: 2.66667vw;
    width: 6.66667vw;
    height: 1.46667vw;
    position: relative;
  }
  .main_content .introduction .intro_box .line::after {
    content: '';
    width: 6.66667vw;
    height: 1.46667vw;
    background: url(../png/line.png) no-repeat;
    background-size: 100% 100%;
    position: absolute;
    top: 0;
    left: 0;
  }
  .main_content .introduction .intro_box .intro_contnet {
    width: 92vw;
    height: auto;
    margin-top: 7.33333vw;
  }
  .main_content .introduction .intro_box .intro_contnet p {
    text-align: left;
    color: #666;
    font-size: 3.46667vw;
    font-style: normal;
    font-weight: 400;
    line-height: 5.86667vw;
    /* 187.5% */
  }
  .main_content .introduction .intro_box .intro_icon_box {
    width: 100%;
    height: auto;
    margin-top: 4.13333vw;
    display: flex;
    flex-direction: row;
    flex-wrap: wrap;
    justify-content: center;
  }
  .main_content .introduction .intro_box .intro_icon_box .intro_i_item {
    margin-top: 7.46667vw;
    margin-right: 15.06667vw;
    display: flex;
    flex-direction: column;
    align-items: center;
  }
  .main_content .introduction .intro_box .intro_icon_box .intro_i_item:nth-of-type(4) {
    margin-right: 0;
  }
  .main_content .introduction .intro_box .intro_icon_box .intro_i_item:last-child {
    margin-right: 0;
  }
  .main_content .introduction .intro_box .intro_icon_box .intro_i_item .item_img {
    width: 10.4vw;
    height: 10.4vw;
  }
  .main_content .introduction .intro_box .intro_icon_box .intro_i_item .item_img img {
    width: 100%;
    height: 100%;
  }
  .main_content .introduction .intro_box .intro_icon_box .intro_i_item p {
    margin-top: 3.2vw;
    color: #666;
    font-size: 3.46667vw;
    font-style: normal;
    font-weight: 400;
    line-height: 4vw;
    /* 136.364% */
  }
  .main_content .introduction .intro_box .intro_b_box {
    width: 100%;
    height: auto;
    margin-top: 15.86667vw;
    position: relative;
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    padding-top: 4vw;
  }
  .main_content .introduction .intro_box .intro_b_box .intro_b_b_img {
    position: absolute;
    top: 0;
    left: 0;
    z-index: 1;
    width: 100%;
    height: 100%;
  }
  .main_content .introduction .intro_box .intro_b_box .intro_b_content {
    padding: 0 4vw;
    width: 92vw;
    height: auto;
    position: static;
    z-index: 2;
    top: 0vw;
    left: 0vw;
  }
  .main_content .introduction .intro_box .intro_b_box .intro_b_content .intro_b_title {
    text-align: left;
    color: #FFF;
    font-size: 5.6vw;
    font-style: normal;
    font-weight: 400;
    line-height: normal;
  }
  .main_content .introduction .intro_box .intro_b_box .intro_b_content .intro_b_desc {
    margin-top: 6vw;
  }
  .main_content .introduction .intro_box .intro_b_box .intro_b_content .intro_b_desc p {
    text-align: left;
    color: #FFF;
    font-size: 3.46667vw;
    font-style: normal;
    font-weight: 400;
    line-height: 5.86667vw;
    /* 187.5% */
  }
  .main_content .introduction .intro_box .intro_b_box .intro_b_img {
    width: 92vw;
    height: auto;
    position: static;
    z-index: 2;
    top: 0vw;
    left: 0vw;
  }
  .main_content .introduction .intro_box .intro_b_box .intro_b_img img {
    width: 100%;
    height: 100%;
  }
  .main_content .advantages {
    width: 100%;
    height: auto;
    padding: 13.33333vw 0 8.26667vw;
  }
  .main_content .advantages .advant_box {
    width: 100%;
    height: auto;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: space-between;
  }
  .main_content .advantages .advant_box .advant_b_l {
    width: 92vw;
    height: auto;
  }
  .main_content .advantages .advant_box .advant_b_l h3 {
    margin-top: 5.33333vw;
    text-align: center;
    color: #111;
    font-size: 5.6vw;
    font-style: normal;
    font-weight: 400;
    line-height: normal;
  }
  .main_content .advantages .advant_box .advant_b_l .line {
    margin: 0 auto;
    margin-top: 2.66667vw;
    width: 6.66667vw;
    height: 1.46667vw;
    position: relative;
  }
  .main_content .advantages .advant_box .advant_b_l .line::after {
    content: '';
    width: 6.66667vw;
    height: 1.46667vw;
    background: url(../png/line.png) no-repeat;
    background-size: 100% 100%;
    position: absolute;
    top: 0;
    left: 0;
  }
  .main_content .advantages .advant_box .advant_b_l .advant_b_l_box {
    width: 100%;
    height: auto;
    margin-top: 4vw;
    padding: 0 3.33333vw;
  }
  .main_content .advantages .advant_box .advant_b_l .advant_b_l_box .item {
    width: 100%;
    height: auto;
    padding: 6.26667vw 0 6.13333vw;
    border-bottom: 0.13333vw solid #D9D9D9;
  }
  .main_content .advantages .advant_box .advant_b_l .advant_b_l_box .item:last-child {
    border-bottom: none;
  }
  .main_content .advantages .advant_box .advant_b_l .advant_b_l_box .item .item_title {
    text-align: left;
    color: #111;
    font-size: 4.53333vw;
    font-style: normal;
    font-weight: 400;
    line-height: normal;
  }
  .main_content .advantages .advant_box .advant_b_l .advant_b_l_box .item .item_desc {
    text-align: left;
    margin-top: 1.6vw;
    color: #666;
    font-size: 3.46667vw;
    font-style: normal;
    font-weight: 400;
    line-height: 5.86667vw;
    /* 187.5% */
  }
  .main_content .advantages .advant_box .advant_b_r {
    width: 85.33333vw;
    height: 109.33333vw;
    position: relative;
  }
  .main_content .advantages .advant_box .advant_b_r .advant_b_r_box {
    width: 100%;
    height: 100%;
  }
  .main_content .advantages .advant_box .advant_b_r .advant_b_r_box .ad_item {
    width: 100%;
    height: 100%;
  }
  .main_content .advantages .advant_box .advant_b_r .advant_b_r_box .ad_item img {
    width: 100%;
    height: 100%;
  }
  .main_content .advantages .advant_box .advant_b_r .swiper-button-prev {
    width: 9.06667vw;
    height: 9.06667vw;
    border-radius: 2.66667vw 0vw 0vw 0vw;
    background: #D80C18;
    display: flex;
    flex-direction: row;
    align-items: center;
    justify-content: center;
    left: unset;
    right: 13.73333vw;
    top: unset;
    bottom: 4vw;
  }
  .main_content .advantages .advant_box .advant_b_r .swiper-button-prev img {
    width: 2.66667vw;
    transform: rotate(-180deg);
  }
  .main_content .advantages .advant_box .advant_b_r .swiper-button-prev::after {
    content: '';
  }
  .main_content .advantages .advant_box .advant_b_r .swiper-button-next {
    width: 9.06667vw;
    height: 9.06667vw;
    border-radius: 0vw 0vw 2.66667vw 0vw;
    background: #D80C18;
    display: flex;
    flex-direction: row;
    align-items: center;
    justify-content: center;
    right: 4.66667vw;
    left: unset;
    top: unset;
    bottom: 4vw;
  }
  .main_content .advantages .advant_box .advant_b_r .swiper-button-next img {
    width: 2.66667vw;
  }
  .main_content .advantages .advant_box .advant_b_r .swiper-button-next::after {
    content: '';
  }
  .main_content .history {
    width: 100%;
    height: auto;
    padding: 13.33333vw 0 22.66667vw;
    background: #F9F9F9;
    display: flex;
    flex-direction: column;
    align-items: center;
  }
  .main_content .history .his_top {
    width: 100%;
    height: auto;
    display: flex;
    flex-direction: column;
    align-items: center;
  }
  .main_content .history .his_top h3 {
    color: #111;
    text-align: center;
    font-size: 5.6vw;
    font-style: normal;
    font-weight: 400;
    line-height: normal;
  }
  .main_content .history .his_top .line {
    margin-top: 2.66667vw;
    width: 6.66667vw;
    height: 1.46667vw;
    position: relative;
  }
  .main_content .history .his_top .line::after {
    content: '';
    width: 6.66667vw;
    height: 1.46667vw;
    background: url(../png/line.png) no-repeat;
    background-size: 100% 100%;
    position: absolute;
    top: 0;
    left: 0;
  }
  .main_content .history .his_center {
    width: 100vw;
    height: 10.66667vw;
    margin-top: 9.33333vw;
    display: flex;
    flex-direction: row;
    justify-content: center;
    position: relative;
  }
  .main_content .history .his_center .his_line {
    width: 70.53333vw;
    height: 0.13333vw;
    background: #D9D9D9;
    position: absolute;
    top: 2.66667vw;
    left: 50%;
    transform: translateX(-50%);
  }
  .main_content .history .his_center .swiper-button-prev {
    width: 6.66667vw;
    height: 6.66667vw;
    left: 5.33333vw;
    top: 5.06667vw;
  }
  .main_content .history .his_center .swiper-button-prev:hover img:first-child {
    display: none;
  }
  .main_content .history .his_center .swiper-button-prev:hover img:last-child {
    display: block;
  }
  .main_content .history .his_center .swiper-button-prev img {
    width: 100%;
    height: 100%;
  }
  .main_content .history .his_center .swiper-button-prev img:first-child {
    display: block;
  }
  .main_content .history .his_center .swiper-button-prev img:last-child {
    display: none;
  }
  .main_content .history .his_center .swiper-button-prev::after {
    content: '';
  }
  .main_content .history .his_center .swiper-button-next {
    width: 6.66667vw;
    height: 6.66667vw;
    right: 5.33333vw;
    top: 5.06667vw;
  }
  .main_content .history .his_center .swiper-button-next:hover img:first-child {
    display: none;
  }
  .main_content .history .his_center .swiper-button-next:hover img:last-child {
    display: block;
  }
  .main_content .history .his_center .swiper-button-next img {
    width: 100%;
    height: 100%;
  }
  .main_content .history .his_center .swiper-button-next img:first-child {
    display: block;
  }
  .main_content .history .his_center .swiper-button-next img:last-child {
    display: none;
  }
  .main_content .history .his_center .swiper-button-next::after {
    content: '';
  }
  .main_content .history .his_center .his_c_box {
    padding-top: 2.13333vw;
    width: 70.66667vw;
    height: auto;
    position: relative;
  }
  .main_content .history .his_center .his_c_box .his_item {
    width: auto !important;
    margin-right: 9.06667vw;
    display: flex;
    flex-direction: column;
    align-items: center;
  }
  .main_content .history .his_center .his_c_box .his_item.swiper-slide-active .cri {
    background: #D80C18;
    border: 0.13333vw solid #D80C18;
  }
  .main_content .history .his_center .his_c_box .his_item.swiper-slide-active p {
    color: #D80C18;
  }
  .main_content .history .his_center .his_c_box .his_item .cri {
    width: 1.33333vw;
    height: 1.33333vw;
    background: #fff;
    border-radius: 50%;
    border: 0.13333vw solid #B4B4B4;
  }
  .main_content .history .his_center .his_c_box .his_item p {
    margin-top: 2.13333vw;
    color: #999;
    font-size: 3.73333vw;
    font-style: normal;
    font-weight: 400;
    line-height: normal;
  }
  .main_content .history .his_center1 {
    width: 100%;
    height: auto;
    position: relative;
  }
  .main_content .history .his_center1 .his_c1_img {
    display: none;
    position: absolute;
    right: 10.4%;
    top: 6.66667vw;
    z-index: 1;
  }
  .main_content .history .his_center1 .his_c1_box {
    width: 100%;
    height: auto;
    margin-top: -6.66667vw;
  }
  .main_content .history .his_center1 .his_c1_box .his_c1_item {
    width: 92vw !important;
    height: auto;
    position: relative;
  }
  .main_content .history .his_center1 .his_c1_box .his_c1_item.swiper-slide-active .his_b_b_item {
    display: block;
  }
  .main_content .history .his_center1 .his_c1_box .his_c1_item > p {
    position: absolute;
    top: 0%;
    left: 50%;
    z-index: 1;
    transform: translateX(-50%);
    text-align: center;
    font-family: 'DIN';
    font-size: 34.66667vw;
    font-style: normal;
    font-weight: 700;
    line-height: normal;
    background: linear-gradient(180deg, #EDEDED 18.46%, rgba(236, 236, 236, 0) 82.64%);
    background-clip: text;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
  }
  .main_content .history .his_center1 .his_c1_box .his_c1_item .his_b_b_item {
    position: relative;
    z-index: 2;
    padding-top: 27.73333vw;
    height: auto;
    width: 100%;
    display: none;
  }
  .main_content .history .his_center1 .his_c1_box .his_c1_item .his_b_b_item .item {
    width: 100%;
    height: auto;
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    margin-bottom: 7.86667vw;
  }
  .main_content .history .his_center1 .his_c1_box .his_c1_item .his_b_b_item .item .item_date {
    color: #111;
    font-size: 4.53333vw;
    font-style: normal;
    font-weight: 400;
    line-height: 4.66667vw;
    /* 125% */
  }
  .main_content .history .his_center1 .his_c1_box .his_c1_item .his_b_b_item .item .item_desc {
    text-align: left;
    margin-top: 2.8vw;
    color: #666;
    font-size: 3.46667vw;
    font-style: normal;
    font-weight: 400;
    line-height: 4vw;
    /* 187.5% */
  }
  .main_content .social {
    width: 100%;
    height: 124vw;
    position: relative;
  }
  .main_content .social img {
    width: 100%;
    height: 100%;
    object-fit: cover;
  }
  .main_content .social .mask {
    width: 100%;
    height: 100%;
    position: absolute;
    top: 0;
    left: 0;
    background: rgba(0, 0, 0, 0.15);
    z-index: 1;
  }
  .main_content .social .social_box {
    width: 100%;
    height: 100%;
    position: absolute;
    top: 0;
    left: 0;
    z-index: 2;
    padding-top: 20.93333vw;
  }
  .main_content .social .social_box h3 {
    text-align: left;
    color: #fff;
    font-size: 5.33333vw;
    font-style: normal;
    font-weight: 400;
    line-height: normal;
  }
  .main_content .social .social_box .line {
    margin-top: 2.66667vw;
    width: 6.66667vw;
    height: 1.46667vw;
    position: relative;
  }
  .main_content .social .social_box .line::after {
    content: '';
    width: 6.66667vw;
    height: 1.46667vw;
    background: url(../png/line.png) no-repeat;
    background-size: 100% 100%;
    position: absolute;
    top: 0;
    left: 0;
  }
  .main_content .social .social_box .social_content {
    width: 100%;
    height: auto;
    display: flex;
    flex-direction: row;
    justify-content: space-between;
    margin-top: 16.26667vw;
  }
  .main_content .social .social_box .social_content .item {
    width: 58.66667vw;
    height: auto;
    display: flex;
    flex-direction: column;
    align-items: flex-start;
  }
  .main_content .social .social_box .social_content .item .item_icon {
    width: 13.33333vw;
    height: 13.33333vw;
  }
  .main_content .social .social_box .social_content .item .item_icon img {
    width: 100%;
    height: 100%;
  }
  .main_content .social .social_box .social_content .item .item_line {
    width: 100%;
    height: 0.13333vw;
    margin-top: 4vw;
    background: #D9D9D9;
  }
  .main_content .social .social_box .social_content .item .item_title {
    margin-top: 4.93333vw;
    color: #FFF;
    font-size: 3.73333vw;
    font-style: normal;
    font-weight: 400;
    line-height: normal;
  }
  .main_content .social .social_box .social_content .item .item_desc {
    margin-top: 4vw;
    text-align: left;
    color: #FFF;
    font-size: 2.13333vw;
    font-style: normal;
    font-weight: 400;
    line-height: 4vw;
    /* 187.5% */
  }
  .main_content .parent {
    width: 100%;
    height: auto;
    padding: 16.4vw 0 18.8vw;
    background: #fff;
  }
  .main_content .parent .parent_title {
    display: flex;
    flex-direction: column;
    align-items: center;
  }
  .main_content .parent .parent_title h3 {
    color: #111;
    font-size: 5.6vw;
    font-style: normal;
    font-weight: 400;
    line-height: normal;
  }
  .main_content .parent .parent_title .line {
    margin-top: 2.66667vw;
    width: 6.66667vw;
    height: 1.46667vw;
    position: relative;
  }
  .main_content .parent .parent_title .line::after {
    content: '';
    width: 6.66667vw;
    height: 1.46667vw;
    background: url(../png/line.png) no-repeat;
    background-size: 100% 100%;
    position: absolute;
    top: 0;
    left: 0;
  }
  .main_content .parent .parent_box {
    width: 100%;
    height: auto;
    margin-top: 3.2vw;
  }
  .main_content .parent .parent_box .parent_r {
    margin-top: 6.4vw;
    width: 100%;
    height: 21.33333vw;
    position: relative;
    overflow: hidden;
  }
  .main_content .parent .parent_box .parent_r .parent_r_img {
    width: 30.66667vw;
    height: 16vw;
    position: absolute;
    top: 0;
    right: 0;
    z-index: 2;
    background: linear-gradient(270deg, #FFF 38.26%, rgba(255, 255, 255, 0) 100%);
  }
  .main_content .parent .parent_box .parent_r .parent_r_box {
    overflow: visible;
    width: 100%;
    height: 16vw;
    position: absolute;
    top: 0;
    left: 0;
    z-index: 1;
    display: flex;
    flex-direction: row;
    align-items: center;
  }
  .main_content .parent .parent_box .parent_r .parent_r_box .str_move {
    overflow: visible;
    display: flex;
    flex-direction: row;
    align-items: center;
  }
  .main_content .parent .parent_box .parent_r .parent_r_box .item {
    flex-shrink: 0 !important;
    width: 30.66667vw;
    height: 16vw;
    margin-right: 3.73333vw;
    display: flex;
    flex-direction: row;
    align-items: center;
    justify-content: center;
  }
  .main_content .parent .parent_box .parent_r .parent_r_box .item:hover {
    background: #FFF;
    box-shadow: 0vw 1.33333vw 2.66667vw 0vw rgba(65, 0, 0, 0.15);
  }
  .main_content .parent .parent_box .parent_r .parent_r_box .item img {
    max-width: 26.66667vw !important;
    height: auto;
  }
  .main_content .parent .parent_box .parent_l {
    margin-top: 3.73333vw;
    width: 100%;
    height: 21.33333vw;
    position: relative;
    overflow: hidden;
  }
  .main_content .parent .parent_box .parent_l .parent_l_img {
    width: 30.66667vw;
    height: 16vw;
    position: absolute;
    top: 0;
    left: 0;
    z-index: 2;
    background: linear-gradient(270deg, rgba(255, 255, 255, 0) 23.04%, #FFF 67.83%);
  }
  .main_content .parent .parent_box .parent_l .parent_l_box {
    overflow: visible;
    width: 100%;
    height: 16vw;
    position: absolute;
    top: 0;
    left: 0;
    z-index: 1;
    display: flex;
    flex-direction: row;
    align-items: center;
  }
  .main_content .parent .parent_box .parent_l .parent_l_box .str_move {
    overflow: visible;
    display: flex;
    flex-direction: row;
    align-items: center;
  }
  .main_content .parent .parent_box .parent_l .parent_l_box .item {
    flex-shrink: 0;
    width: 30.66667vw;
    height: 16vw;
    margin-right: 3.73333vw;
    display: flex;
    flex-direction: row;
    align-items: center;
    justify-content: center;
  }
  .main_content .parent .parent_box .parent_l .parent_l_box .item:hover {
    background: #FFF;
    box-shadow: 0vw 1.33333vw 2.66667vw 0vw rgba(65, 0, 0, 0.15);
  }
  .main_content .parent .parent_box .parent_l .parent_l_box .item img {
    max-width: 26.66667vw !important;
    height: auto;
  }
}