.main_center {
  max-width: 77.27rem;
}
header .header_pc {
  position: fixed;
  background-color: rgba(245, 246, 246, 0.5);
}
section .banner #banner_container {
  --swiper-navigation-color: #fd811f;
}
section .banner #banner_container img {
  width: 100%;
}
section .banner #banner_container .swiper-pagination {
  bottom: 30px;
  display: flex;
  align-items: center;
  justify-content: center;
}
section .banner #banner_container .swiper-pagination-bullet {
  border: solid 1px #fd811f;
  opacity: 0.5;
  background-color: transparent;
}
section .banner #banner_container .swiper-pagination-bullet-active {
  opacity: 1;
  width: 1.36rem;
  height: 0.27rem;
  background-color: #fd811f;
  border-radius: 0.14rem;
}
section .banner #banner_container .swiper-button-next {
  right: 3.64rem;
}
section .banner #banner_container .swiper-button-prev {
  left: 3.64rem;
}
section .product .product_items #product_container {
  padding-bottom: 1rem;
}
section .product .product_items #product_container .swiper-wrapper {
  padding-bottom: 1.2rem;
}
section .product .product_items #product_container .swiper-slide .product_item {
  position: relative;
}
section .product .product_items #product_container .swiper-slide .product_item .product_pic {
  overflow: hidden;
  width: 100%;
  height: 17.64rem;
  display: flex;
  justify-content: center;
  background-color: #f5f5f5;
}
section .product .product_items #product_container .swiper-slide .product_item .product_pic img {
  transition: all 0.5s;
  width: 100%;
  height: 90%;
  margin: auto;
  object-fit: contain;
  display: block;
}
section .product .product_items #product_container .swiper-slide .product_item .pro_name {
  position: relative;
  height: 8.18rem;
}
section .product .product_items #product_container .swiper-slide .product_item .pro_name p {
  text-align: center;
  font-size: 0.91rem;
  color: #000000;
  margin-top: 0.91rem;
  font-weight: bold;
}
section .product .product_items #product_container .swiper-slide .product_item .pro_name .product_mask {
  position: absolute;
  left: 0;
  right: 0;
  top: 0;
  bottom: 0;
  background-color: #fd811f;
}
section .product .product_items #product_container .swiper-slide .product_item .pro_name .product_mask .mask {
  height: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
}
section .product .product_items #product_container .swiper-slide .product_item .pro_name .product_mask .mask h3 {
  position: relative;
  font-size: 1.1rem;
  color: #ffffff;
  margin-bottom: 1.82rem;
}
section .product .product_items #product_container .swiper-slide .product_item .pro_name .product_mask .mask .xq {
  padding: 0.73rem 3.09rem;
  color: #fff;
  border: 1px solid #fff;
}
section .product .product_items #product_container .swiper-slide .product_item:hover .product_pic {
  overflow: hidden;
}
section .product .product_items #product_container .swiper-slide .product_item:hover .product_pic img {
  transform: scale(1.04);
  transition: all 0.5s;
}
section .product .product_items #product_container .swiper-slide-active,
section .product .product_items #product_container .swiper-slide-duplicate-active {
  transform: scale(1);
}
section .product .product_items #product_container .swiper-pagination {
  display: flex;
  align-items: center;
  justify-content: center;
}
section .product .product_items #product_container .swiper-pagination-bullet {
  width: 0.45rem;
  height: 0.45rem;
  background-color: #cccccc;
  opacity: 0.5;
}
section .product .product_items #product_container .swiper-pagination-bullet-active {
  position: relative;
  width: 0.82rem;
  height: 0.82rem;
  border-radius: 50%;
  border: solid 1px #fd811f;
  background-color: transparent;
  opacity: 1;
}
section .product .product_items #product_container .swiper-pagination-bullet-active::before {
  content: "";
  position: absolute;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);
  width: 0.36rem;
  height: 0.36rem;
  border-radius: 50%;
  background-color: #fd811f;
}
section .product .product_items .swiper-container-horizontal > .swiper-pagination-bullets .swiper-pagination-bullet {
  margin: 0 0.68rem;
}
section .case {
  text-align: center;
}
section .case .main_center {
  max-width: 63.64rem;
}
section .case .case_list ul {
  display: flex;
  align-items: center;
  justify-content: center;
}
section .case .case_list ul li {
  padding: 0 1.59rem;
  border-right: 1px solid #e6e6e6;
}
section .case .case_list ul li:last-child {
  border-right: 0;
}
section .case .case_list ul li a {
  padding: 0.45rem 0.59rem;
}
section .case .case_list ul li a:hover {
  background-color: #fd811f;
  color: #fff;
}
section .case .case_list ul .active {
  background-color: #fd811f;
  color: #fff;
}
section .case .case_container {
  display: none;
}
section .case .case_container .case_items {
  margin-top: 1.82rem;
  display: flex;
  flex-wrap: wrap;
  text-align: center;
}
section .case .case_container .case_items .case_item {
  width: 30%;
  margin-right: 5%;
  margin-bottom: 5%;
}
section .case .case_container .case_items .case_item:nth-child(3n) {
  margin-right: 0;
}
section .case .case_container .case_items .case_item .case_pic {
  position: relative;
  height: 13rem;
}
section .case .case_container .case_items .case_item .case_pic img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}
section .case .case_container .case_items .case_item .case_pic .case_hover {
  position: absolute;
  left: 0;
  right: 0;
  top: 0;
  bottom: 0;
  background-color: rgba(0, 0, 0, 0.6);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: all 1s;
}
section .case .case_container .case_items .case_item .case_pic .case_hover i {
  color: #fff;
  font-size: 1.82rem;
  background-color: rgba(255, 255, 255, 0.3);
}
section .case .case_container .case_items .case_item .case_pic .case_hover span {
  color: #ffffff;
  font-size: 0.82rem;
  padding: 0.68rem 2.91rem;
  border: 1px solid #fff;
  margin-top: 3.86rem;
}
section .case .case_container .case_items .case_item .case_pic:hover .case_hover {
  opacity: 1;
  transition: all 1s;
}
section .case .case_container .case_items .case_item .case_name {
  font-size: 0.8rem;
  color: #333333;
  margin-top: 1.36rem;
  margin-bottom: 1.27rem;
  display: inline-block;
}
section .case .selected {
  display: block;
}
section .case .all {
  padding: 0.68rem 3.86rem;
  border: 1px solid #666666;
  display: inline-block;
  margin-top: 0.91rem;
}
section .video {
  margin-top: 6.36rem;
}
section .video .video_box {
  position: relative;
}
section .video .video_box video {
  width: 100%;
  height: 40rem;
  object-fit: cover;
  background-color: #000;
}
section .video .video_box .video-img {
  position: absolute;
  text-align: center;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  bottom: 0;
  width: 100%;
  height: 100%;
  z-index: 999;
  cursor: pointer;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
}
section .video .video_box .video-img p {
  width: 60%;
  font-size: 1.27rem;
  line-height: 2.18rem;
  color: #fff;
}
section .video .video_box .video-img img {
  width: 2.27rem;
  height: 2.27rem;
}
section .video p {
  font-size: 1.09rem;
  color: #000000;
  text-align: center;
  margin-top: 1.82rem;
}
section .choose {
  background: url(../images/choose_back.png) no-repeat center;
  margin-top: 3.45rem;
  padding: 3.64rem 0;
}
section .choose .main_center {
  max-width: 63.64rem;
}
section .choose .common_h {
  margin-top: 0;
  margin-bottom: 1.5rem;
  padding: 0 1.36rem;
}
section .choose .common_h .zp {
  margin-top: 0.5rem;
  color: #000000;
  line-height: 1.8;
  text-align: justify;
  margin-bottom: 1rem;
  font-size: 0.8rem;
}
section .choose .common_h .zp_1 {
  margin-top: 1.36rem;
}
section .choose .choose_items {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  margin-top: 6rem;
}
section .choose .choose_items .choose_item {
  width: 46%;
  margin-bottom: 3rem;
}
section .choose .choose_items .choose_item .choose_xq {
  display: flex;
}
section .choose .choose_items .choose_item .choose_icon {
  width: 7rem;
  height: 7rem;
  border-radius: 50%;
  overflow: hidden;
  flex-shrink: 0;
  margin-right: 2rem;
}
section .choose .choose_items .choose_item .choose_icon img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
section .choose .choose_items .choose_item .text h3 {
  font-size: 1.2rem;
}
section .choose .choose_items .choose_item .text h4 {
  font-size: 0.8rem;
  margin-top: 1rem;
  margin-bottom: 2rem;
}
section .choose .choose_items .choose_item .text p {
  line-height: 2;
  color: #666;
  text-align: justify;
}
section .news {
  margin-bottom: 5.91rem;
}
section .news .common_h {
  margin-top: 0;
}
section .news .news_items {
  display: flex;
}
section .news .news_items .news_item {
  width: 30%;
  margin-right: 5%;
  background-color: #fafafa;
}
section .news .news_items .news_item:last-child {
  margin-right: 0;
}
section .news .news_items .news_item .news_pic {
  overflow: hidden;
  height: 10.18rem;
}
section .news .news_items .news_item .news_pic img {
  width: 100%;
  height: 100%;
  display: block;
  object-fit: cover;
  transition: all 0.5s;
}
section .news .news_items .news_item .news_xq {
  padding: 1rem 4.32rem 1rem 1.14rem;
}
section .news .news_items .news_item .news_xq .day {
  color: #fd811f;
  font-size: 1.82rem;
  font-weight: bold;
}
section .news .news_items .news_item .news_xq .year {
  color: #999999;
  font-size: 0.73rem;
  margin-top: 0.68rem;
  margin-bottom: 1.82rem;
}
section .news .news_items .news_item .news_xq h3 {
  color: #333333;
  font-weight: normal;
  font-size: 0.82rem;
}
section .news .news_items .news_item .news_xq p {
  color: #999999;
  line-height: 2;
  margin: 1.36rem 0;
  overflow: hidden;
  text-overflow: ellipsis;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
}
section .news .news_items .news_item .news_xq a {
  color: #999;
}
section .news .news_items .news_item:hover .news_pic img {
  transform: scale(1.04);
  transition: all 0.5s;
}
section .news .news_items .news_item:hover .news_xq a {
  color: #fd811f;
}
section .news .all_case {
  text-align: center;
}
section .news .all_case .all {
  padding: 0.68rem 3.86rem;
  border: 1px solid #666666;
  display: inline-block;
  margin-top: 0.91rem;
}
@media only screen and (max-width: 1366px) {
  section .product .product_pic {
    height: 12.64rem !important;
  }
  section .product .pro_name {
    height: 6.18rem !important;
  }
  section .product .product_mask .mask h3 {
    margin-bottom: 1rem !important;
  }
  section .choose {
    height: 38.5rem;
  }
  section .choose .choose_items .choose_item {
    height: 18.73rem;
  }
  section .choose .choose_items .choose_item .choose_icon i {
    padding: 0.5rem !important;
  }
  section .choose .choose_items .choose_item .circle .c1 {
    width: 5.36rem !important;
    height: 5.36rem !important;
  }
  section .choose .choose_items .choose_item .circle .c2 {
    width: 7.09rem !important;
    height: 7.09rem !important;
  }
  section .choose .choose_xq h3 {
    margin-top: 3.36rem;
  }
  section .choose .choose_xq .en {
    font-size: 12px;
  }
  section .news .news_items .news_xq {
    padding: 0.5rem 4.32rem 0.5rem 1.14rem;
  }
  section .news .news_items .news_xq p {
    margin: 1rem 0 !important;
  }
  section .news .news_items .news_xq .year {
    margin-bottom: 0.82rem !important;
  }
}
@media only screen and (max-width: 768px) {
  section .banner #banner_container {
    --swiper-navigation-size: 18px;
  }
  section .banner #banner_container .swiper-pagination {
    bottom: 10px;
  }
  section .banner #banner_container .swiper-button-next {
    right: 10px;
  }
  section .banner #banner_container .swiper-button-prev {
    left: 10px;
  }
  section .product #product_container {
    transform: scale(0.9) !important;
  }
  section .product #product_container .product_pic {
    height: 150px !important;
  }
  section .product #product_container .pro_name {
    height: 5.18rem !important;
  }
  section .product #product_container .pro_name p {
    font-size: 14px !important;
    line-height: 1.4;
  }
  section .product #product_container .pro_name .product_mask .mask {
    padding: 0 5px;
  }
  section .product #product_container .pro_name .product_mask .mask h3 {
    font-size: 14px !important;
    line-height: 1.4;
    margin-bottom: 0 !important;
    overflow: hidden;
    text-overflow: ellipsis;
    transition: all 0.36s ease;
  }
  section .product #product_container .pro_name .product_mask .mask .xq {
    margin-top: 10px !important;
    padding: 5px 10px !important;
  }
  section .case .case_list ul {
    flex-wrap: wrap;
    justify-content: flex-start;
  }
  section .case .case_list ul li {
    padding: 0px 0.59rem;
    width: calc(100% / 3);
    margin-bottom: 25px;
  }
  section .case .case_container .case_items .case_item {
    width: 49%;
    margin-right: 2%;
  }
  section .case .case_container .case_items .case_item:nth-child(3n) {
    margin-right: 2%;
  }
  section .case .case_container .case_items .case_item:nth-child(2n) {
    margin-right: 0;
  }
  section .case .case_container .case_items .case_item .case_pic {
    height: 7.27rem;
  }
  section .case .case_container .case_items .case_item .case_pic .case_hover span {
    margin-top: 0.86rem;
  }
  section .video {
    margin-top: 40px;
  }
  section .video .video_box video {
    height: 200px;
    object-fit: cover;
  }
  section .video .video_box .video-img p {
    width: 95%;
    font-size: 16px;
    line-height: 1.8;
    margin-top: 0.82rem;
  }
  section .choose {
    height: auto;
    padding: 20px 10px;
    margin-top: 1.45rem;
  }
  section .choose .zp {
    font-size: 14px !important;
    margin-top: 10px !important;
  }
  section .choose .choose_items {
    flex-wrap: wrap;
  }
  section .choose .choose_items .choose_item {
    width: 49%;
    margin-right: 2%;
    padding: 10px 0;
    height: 14rem;
    margin-bottom: 10px;
  }
  section .choose .choose_items .choose_item:nth-child(2n) {
    margin-right: 0;
  }
  section .choose .choose_items .choose_item .choose_xq .choose_icon i {
    font-size: 20px;
  }
  section .choose .choose_items .choose_item .choose_xq .choose_icon i .circle {
    width: 60px !important;
    height: 60px !important;
  }
  section .choose .choose_items .choose_item .choose_xq .choose_icon i .circle .c1 {
    width: 70px !important;
    height: 70px !important;
  }
  section .choose .choose_items .choose_item .choose_xq .choose_icon i .circle .c2 {
    width: 100px !important;
    height: 100px !important;
  }
  section .choose .choose_items .choose_item .choose_xq h3 {
    margin-top: 3.36rem;
    margin-bottom: 1.36rem;
  }
  section .choose .choose_items .choose_item .choose_xq .en {
    display: none;
  }
  section .choose .choose_items .choose_item .choose_xq .desc {
    margin-top: 20px;
    margin-bottom: 20px;
    overflow: hidden;
    text-overflow: ellipsis;
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
  }
  section .news .news_items {
    flex-wrap: wrap;
  }
  section .news .news_items .news_item {
    width: 100%;
    margin-right: 0;
    margin-bottom: 20px;
  }
  section .news .news_items .news_item:nth-child(2) {
    flex-direction: column;
  }
  section .news .news_items .news_item .news_xq {
    padding: 20px 10px;
  }
  section .news .news_items .news_item .news_xq .year {
    margin-bottom: 15px;
    font-size: 14px;
  }
  section .news .news_items .news_item .news_xq p {
    margin: 15px 0;
  }
}