@keyframes dow_arr1 {
  0% {
    opacity: 0;
  }
  24% {
    opacity: 0;
  }
  25% {
    opacity: 1;
  }
  100% {
    opacity: 1;
  }
}
@keyframes dow_arr2 {
  0% {
    opacity: 0;
  }
  49% {
    opacity: 0;
  }
  50% {
    opacity: 1;
  }
  100% {
    opacity: 1;
  }
}
@keyframes large-s {
  0% {
    transform: scale(1);
  }
  100% {
    transform: scale(1.05);
  }
}
.banner {
  width: 100%;
  overflow: hidden;
  position: relative;
}
.banner .txt {
  width: 100%;
  position: absolute;
  top: 40%;
  left: 7.5%;
  transform: translateY(-50%);
}
.banner .txt p {
  color: #fff;
}
.banner .txt span {
  color: #fff;
  display: inline-block;
}
.subnav {
  width: 100%;
  background-color: #f9f9f8;
}
.subnav ul {
  width: 100%;
  background-color: #fff;
  display: flex;
  justify-content: center;
  align-items: center;
  box-shadow: 0px 0px 8px #ccc;
}
.subnav ul li {
  padding: 0 1.5rem;
  line-height: 100px;
  color: #333;
  border-bottom: 2px solid transparent;
}
.subnav ul li.on {
  color: var(--primary-color);
  border-bottom: 2px solid var(--primary-color);
}
.ctn_1 {
  background-color: #f3f2f0;
  width: 100%;
  overflow: hidden;
  padding: 4.5rem 0;
}
.ctn_1 .item {
  display: flex;
  justify-content: space-between;
}
.ctn_1 .item .txt {
  width: 45%;
}
.ctn_1 .item .txt h2 {
  display: block;
  color: var(--primary-color);
}
.ctn_1 .item .txt p {
  display: block;
  color: #333;
  margin-top: 2rem;
}
.ctn_1 .item .txt p span {
  color: var(--primary-color);
}
.ctn_1 .item .sw_pic {
  width: 44%;
  margin: 0;
}
.ctn_1 .item .sw_pic .swiper-pagination {
  bottom: 12%;
  text-align: left;
  padding-left: 5%;
}
.ctn_1 .item .sw_pic .swiper-pagination .swiper-pagination-bullet {
  background: #fff;
  opacity: 1;
}
.ctn_1 .item .sw_pic .swiper-pagination .swiper-pagination-bullet-active {
  background: var(--primary-color);
}
.ctn_1 .item .sw_pic .swiper-slide .bg {
  position: absolute;
  bottom: 0;
  left: 0;
  z-index: 2;
}
.ctn_1 .item .sw_pic .swiper-slide p {
  -webkit-line-clamp: 1;
  display: -webkit-box;
  -webkit-box-orient: vertical;
  text-overflow: ellipsis;
  overflow: hidden;
  line-height: 1.5;
  height: 1.5em;
  position: absolute;
  width: 90%;
  bottom: 5%;
  left: 5%;
  color: #fff;
  z-index: 3;
}
.ctn_1 .item .sw_pic .swiper-slide .img {
  position: relative;
  padding-top: 68%;
  overflow: hidden;
  z-index: 1;
}
.ctn_1 .item .sw_pic .swiper-slide .img img {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
}
.ctn_2 {
  width: 100%;
  overflow: hidden;
  padding: 4rem 0;
}
.ctn_2 .title {
  text-align: center;
}
.ctn_2 .title p {
  color: #fff;
}
.ctn_2 .h5 {
  display: none;
}
.ctn_2 .img {
  margin-top: 2rem;
}
.ctn_2 .img img {
  float: left;
}
.ctn_2 .img .pic1 {
  width: 13.6%;
}
.ctn_2 .img .pic2 {
  width: 6.1%;
}
.ctn_2 .img .pic3 {
  width: 30.7%;
}
.ctn_2 .img .pic4 {
  width: 7.3%;
}
.ctn_2 .img .pic5 {
  width: 14.8%;
}
.ctn_2 .img .pic6 {
  width: 4.6%;
}
.ctn_2 .img .pic7 {
  width: 22.7%;
}
.ctn_3 {
  width: 100%;
  overflow: hidden;
  padding: 4rem 0;
}
.ctn_3 .title {
  text-align: center;
}
.ctn_3 .title p {
  color: var(--primary-color);
  display: block;
}
.ctn_3 .title span {
  color: #333;
  display: block;
  margin-top: 0.2rem;
}
.ctn_3 ul {
  display: flex;
  justify-content: center;
  margin-top: 3rem;
}
.ctn_3 ul li {
  width: 20%;
  margin: 0 1%;
  padding: 4% 2%;
  background-color: #fff;
  box-shadow: 0px 0px 10px #ccc;
  transition: all 0.3s;
}
.ctn_3 ul li .ic {
  width: 60px;
  height: 60px;
  background-repeat: no-repeat;
  margin: 0 auto;
  background-size: 100%;
}
.ctn_3 ul li .txt {
  margin-top: 1rem;
}
.ctn_3 ul li .txt p {
  color: #333;
  display: block;
  text-align: center;
}
.ctn_3 ul li .txt span {
  margin-top: 0.5rem;
  color: #666;
  display: block;
  text-align: center;
}
.ctn_3 ul li:hover {
  background-color: var(--primary-color);
}
.ctn_3 ul li:hover .ic {
  background-position: 0 100%;
}
.ctn_3 ul li:hover .txt p {
  color: #fff;
}
.ctn_3 ul li:hover .txt span {
  color: #fff;
}
.ctn_3 .category .base_img {
  width: 29.5%;
  margin: 8% auto 30%;
  position: relative;
}
.ctn_3 .category .base_img .tag {
  width: 34.9%;
  padding-top: 34.9%;
  border-radius: 100%;
  background-color: #fff;
  box-shadow: 0px 0px 10px #ccc;
  position: absolute;
  transition: all 0.3s;
}
.ctn_3 .category .base_img .tag .info {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 100%;
}
.ctn_3 .category .base_img .tag .ic {
  width: 36.3%;
  padding-top: 36.3%;
  background-repeat: no-repeat;
  background-size: 100%;
  margin: 0 auto;
}
.ctn_3 .category .base_img .tag p {
  display: block;
  text-align: center;
  color: var(--primary-color);
}
.ctn_3 .category .base_img .tag .conceal {
  opacity: 0;
  transition: all 0.5s;
}
.ctn_3 .category .base_img .tag .conceal img:nth-child(2) {
  opacity: 0;
  transition: all 0.3s;
}
.ctn_3 .category .base_img .tag:hover .conceal {
  opacity: 1;
  transform: translateX(0px) !important;
}
.ctn_3 .category .base_img .tag:hover .conceal img:nth-child(2) {
  opacity: 1;
  transition-delay: 0.4s;
}
.ctn_3 .category .base_img .tag.item1 {
  top: 9%;
  left: -20%;
}
.ctn_3 .category .base_img .tag.item1 .conceal {
  width: 300%;
  position: absolute;
  top: -24%;
  right: 102%;
  transform: translateX(50px);
}
.ctn_3 .category .base_img .tag.item1 .conceal img {
  position: absolute;
  top: 0;
  left: 0;
}
.ctn_3 .category .base_img .tag.item2 {
  top: 9%;
  right: -20%;
}
.ctn_3 .category .base_img .tag.item2 .conceal {
  width: 260%;
  position: absolute;
  top: -43%;
  left: 102%;
  transform: translateX(-50px);
}
.ctn_3 .category .base_img .tag.item2 .conceal img {
  position: absolute;
  top: 0;
  left: 0;
}
.ctn_3 .category .base_img .tag.item3 {
  bottom: 9%;
  left: -20%;
}
.ctn_3 .category .base_img .tag.item3 .conceal {
  width: 386%;
  position: absolute;
  top: 45%;
  right: -42%;
  transform: translateX(50px);
}
.ctn_3 .category .base_img .tag.item3 .conceal img {
  position: absolute;
  top: 0;
  left: 0;
}
.ctn_3 .category .base_img .tag.item4 {
  bottom: 9%;
  right: -20%;
}
.ctn_3 .category .base_img .tag.item4 .conceal {
  width: 338%;
  position: absolute;
  top: -12%;
  left: 74%;
  transform: translateX(-50px);
}
.ctn_3 .category .base_img .tag.item4 .conceal img {
  position: absolute;
  top: 0;
  left: 0;
}
.ctn_3 .category .base_img .tag:hover {
  background-color: var(--primary-color);
}
.ctn_3 .category .base_img .tag:hover .ic {
  animation: flip-x 0.5s linear 0s 1 forwards;
}
.ctn_3 .category .base_img .tag:hover p {
  color: #fff;
}
@keyframes flip-x {
  0% {
    transform: rotateY(0);
  }
  49% {
    background-position: 0 0;
  }
  50% {
    background-position: 0 100%;
  }
  100% {
    transform: rotateY(360deg);
    background-position: 0 100%;
  }
}
@media screen and (max-width: 1366px) {
  .ctn_3 ul li .ic {
    width: 50px;
    height: 50px;
  }
}
@media screen and (max-width: 1280px) {
  .subnav ul li {
    line-height: 50px;
  }
}
@media screen and (max-width: 998px) {
  .banner img {
    width: 180%;
    margin-left: -40%;
  }
  .banner .txt {
    top: 52%;
  }
  .ctn_1 .item {
    flex-wrap: wrap;
  }
  .ctn_1 .item .txt {
    width: 100%;
  }
  .ctn_1 .item .sw_pic {
    width: 100%;
    margin-top: 15px;
  }
  .ctn_2 {
    background-size: cover!important;
  }
  .ctn_3 ul {
    flex-wrap: wrap;
  }
  .ctn_3 ul li {
    width: 48%;
    margin-bottom: 2%;
    padding: 7% 2%;
  }
  .ctn_3 .category .base_img .tag p {
    font-size: 14px;
  }
}
@media screen and (max-width: 768px) {
  .subnav {
    overflow-x: scroll;
  }
  .subnav ul {
    padding: 0 20px;
    width: auto;
    display: block;
    text-align: center;
    white-space: nowrap;
    box-shadow: none;
  }
  .subnav ul li {
    width: 80px;
    display: inline-block;
    font-size: 12px;
    padding: 0 0.5rem;
  }
  .ctn_2 {
    padding: 0;
    background-image: url(' ');
  }
  .ctn_2 .w1600 {
    display: none;
  }
  .ctn_2 .h5 {
    display: block;
  }
  .ctn_3 .category .base_img {
    width: 90%;
    margin: 8% auto 0;
  }
  .ctn_3 .category .base_img > img {
    width: 80%;
    margin: 0 auto 20px;
  }
  .ctn_3 .category .base_img .tag {
    position: static;
    background-color: transparent;
    box-shadow: 0px 0px 0px #ccc;
    border-radius: 0;
    width: 100%;
    padding-top: 0;
  }
  .ctn_3 .category .base_img .tag .ic {
    width: 50px;
    height: 50px;
    padding-top: 0;
  }
  .ctn_3 .category .base_img .tag .info {
    position: static;
    transform: translate(0, 0);
  }
  .ctn_3 .category .base_img .tag .conceal {
    position: static!important;
    width: 100%!important;
    opacity: 1;
    transform: translateX(0) !important;
  }
  .ctn_3 .category .base_img .tag .conceal img:nth-child(1) {
    display: none;
  }
  .ctn_3 .category .base_img .tag .conceal img:nth-child(2) {
    position: static;
    opacity: 1;
  }
  .ctn_3 .category .base_img .tag:hover {
    background-color: #fff;
  }
  .ctn_3 .category .base_img .tag:hover .ic {
    background-position: 0 0;
  }
  .ctn_3 .category .base_img .tag:hover p {
    color: var(--primary-color);
  }
  .ctn_3 .category .base_img .tag.item1 .conceal img:nth-child(2) {
    margin-left: 15%;
    width: 120%;
  }
  .ctn_3 .category .base_img .tag.item2 .conceal img:nth-child(2) {
    margin-left: -40%;
    width: 120%;
  }
  .ctn_3 .category .base_img .tag.item3 .conceal img:nth-child(2) {
    margin-top: -15%;
  }
}