.pc-index-banner {
  height: 44.8vw;
}
.mobile-index-banner {
  display: none;
}
.about-us {
  width: 100%;
  height: 28.8vw;
  margin-top: 40px;
  /*display: flex;
  justify-content: space-between;*/
}
.about-us .img {
  width: 50%;
  height: 100%;
}
.about-us .img img {
  width: 100%;
  height: 100%;
}
.about-us .right {
  width: 50%;
  height: 100%;
  background-color: #f2f2f2;
}
.about-us .right .main {
  width: 84%;
  margin: 0 auto;
}
.about-us .right .main .p1 {
  font-size: 35px;
  color: #272727;
  margin-top: 3.6vw;
  font-family: 'HelveticaNeueCE-Thin';
}
.about-us .right .main .p2 {
  font-size: 20px;
  color: #070e6c;
  margin-top: 6px;
}
.about-us .right .main ul {
  display: flex;
  justify-content: space-between;
  margin: 1.6vw auto 0.8vw;
}
.about-us .right .main ul li {
  width: 25%;
  position: relative;
}
.about-us .right .main ul li .number-add {
  font-size: 36px;
  color: #272727;
  position: relative;
}
.about-us .right .main ul li .number-add::after {
  font-size: 12px;
  color: #272727;
  position: absolute;
  right: -14px;
  top: 1px;
}
.about-us .right .main ul li .summary {
  font-size: 12px;
  color: #9d9d9d;
  margin-top: 6px;
}
.about-us .right .main ul li:not(:nth-child(1)) {
  text-align: center;
}
.about-us .right .main ul li::after {
  content: '';
  display: inline-block;
  width: 1px;
  height: 35px;
  background-color: #3c3c3c;
  position: absolute;
  right: 0;
  top: 20px;
}
.about-us .right .main ul li:nth-child(4)::after {
  display: none;
}
.about-us .right .main ul li:nth-child(4) .number-add::after {
  content: '亩';
}
.about-us .right .main ul li:nth-child(1) .number-add::after {
  content: '年';
}
.about-us .right .main ul li:nth-child(2) .number-add::after {
  content: '万';
}
.about-us .right .main ul li:nth-child(3) .number-add::after {
  content: '万';
}
.about-us .right .main .p3 {
  font-size: 14px;
  color: #272727;
  line-height: 1.8;
}
.about-us .right .main .more {
  display: block;
  width: 135px;
  height: 39px;
  margin-top: 2.4vw;
  border: 1px solid #5a5e9b;
  font-size: 16px;
  color: #262626;
  text-align: center;
  line-height: 39px;
}
.product {
  width: 100%;
  margin-top: 40px;
}
.product ul {
  display: flex;
}
.product ul li {
  width: 18.2vw;
  height: 22.4vw;
  margin-right: 30px;
  position: relative;
}
.product ul li .img {
  width: 100%;
  height: 100%;
}
.product ul li .p1 {
  width: 100%;
  text-align: center;
  position: absolute;
  left: 0;
  bottom: 1vw;
  font-size: 1vw;
  color: #fff;
  transition: opacity .3s;
}
.product ul li .mask {
  width: 100%;
  height: 100%;
  position: absolute;
  left: 0;
  top: 0;
  background-color: rgba(0, 0, 0, 0.4);
  display: flex;
  justify-content: center;
  align-items: center;
  opacity: 0;
  transition: opacity .3s;
}
.product ul li .mask .main {
  width: 15vw;
  height: 15vw;
  background-color: rgba(255, 245, 0, 0.85);
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
}
.product ul li .mask .main .p2 {
  width: 100%;
  font-size: 1.2vw;
  color: #181818;
  text-align: center;
  margin-top: 5.2vw;
}
.product ul li .mask .main .more {
  display: block;
  width: 7vw;
  height: 2vw;
  border: 1px solid #68664d;
  text-align: center;
  line-height: 2vw;
  font-size: 12px;
  color: #262626;
  margin-top: -3vw;
}
.product ul li:hover .p1 {
  opacity: 0;
}
.product ul li:hover .mask {
  opacity: 1;
}
.product ul li:last-child {
  margin-right: 0;
}
.project-cases {
  width: 100%;
  background-color: #f2f2f2;
  margin-top: 40px;
  overflow: hidden;
}
.project-cases .title {
  text-align: center;
}
.project-cases .title .p1 {
  font-size: 35px;
  color: #c0c0c0;
  padding-top: 44px;
  font-family: 'HelveticaNeueCE-Thin';
}
.project-cases .title .p2 {
  font-size: 20px;
  color: #141313;
}
.project-cases ul {
  width: 1200px;
  margin: 46px auto 0px;
  display: flex;
  justify-content: space-between;
}
.project-cases ul li {
  width: 282px;
  height: 242px;
  background-color: #fff;
  border: 1px solid #fff500;
  transition: all .3s;
}
.project-cases ul li a {
  width: 100%;
  height: 100%;
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
}
.project-cases ul li a span {
  display: block;
}
.project-cases ul li a .span1 {
  width: 60px;
  height: 63px;
  margin-top: 66px;
}
.project-cases ul li a .span2 {
  width: 100%;
  font-size: 16px;
  color: #262626;
  text-align: center;
  margin-top: -39px;
}
.project-cases ul li:hover {
  background-color: #fff500;
  border: 1px solid #fff500;
}
.project-cases ul li:nth-child(1) .span1 {
  background: url('../img/12.png') center bottom no-repeat;
}
.project-cases ul li:nth-child(2) .span1 {
  background: url('../img/13.png') center bottom no-repeat;
}
.project-cases ul li:nth-child(3) .span1 {
  background: url('../img/14.png') center bottom no-repeat;
}
.project-cases ul li:nth-child(4) .span1 {
  background: url('../img/15.png') center bottom no-repeat;
}
.project-cases ul li:nth-child(5) .span1 {
  background: url('../img/16-1.png') center bottom no-repeat;
}
.project-cases .more {
  display: block;
  width: 135px;
  height: 39px;
  margin: 46px auto 54px;
  border: 1px solid #626262;
  font-size: 16px;
  color: #262626;
  text-align: center;
  line-height: 39px;
}
.video-material {
  width: 100%;
  height: 29.4vw;
  margin-top: 40px;
  display: flex;
}
.video-material .left {
  width: 50%;
  height: 100%;
  background-color: #282828;
}
.video-material .left .main {
  width: 496px;
  margin: 6vw auto 0;
}
.video-material .left .main .p1 {
  font-size: 2vw;
  color: #606060;
  font-family: 'HelveticaNeueCE-Thin';
}
.video-material .left .main .p2 {
  font-size: 1vw;
  color: #fff500;
  margin: 0.5vw auto 1vw;
}
.video-material .left .main ul {
  display: flex;
}
.video-material .left .main ul li {
  width: 154px;
  margin-right: 14px;
  position: relative;
  cursor: pointer;
}
.video-material .left .main ul li .img {
  width: 100%;
  height: 86px;
}
.video-material .left .main ul li .img img{
  width: 100%;
  height: 100%;
}
.video-material .left .main ul li .mask {
  width: 100%;
  height: 86px;
  position: absolute;
  left: 0;
  top: 0;
  background-color: rgba(0, 0, 0, 0.4);
  display: flex;
  justify-content: center;
  align-items: center;
}
.video-material .left .main ul li .mask p {
  width: 24px;
  height: 24px;
  border: 1px solid #fff;
  border-radius: 50%;
  background: url('../img/22.png') center center no-repeat;
}
.video-material .left .main ul li:last-child {
  margin-right: 0;
}
.video-material .left .main ul li .title{
  font-size: 15px;
  color: #fff;
  margin-top: 10px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.video-material .left .main .more {
  display: block;
  width: 135px;
  height: 39px;
  line-height: 39px;
  text-align: center;
  border: 1px solid #b9b30f;
  font-size: 12px;
  color: #fff500;
  margin-top: 3vw;
}
.video-material .right {
  width: 50%;
  height: 100%;
}
.video-material .right ul {
  position: relative;
  height: 100%;
}
.video-material .right ul li {
  width: 100%;
  height: 100%;
  position: absolute;
  display: none;
}
.video-material .right ul li img {
  width: 100%;
  height: 100%;
}
.video-material .right ul li div {
  width: 100%;
  height: 100%;
  position: absolute;
  left: 0;
  top: 0;
  background-color: rgba(0, 0, 0, 0.2);
  display: flex;
  justify-content: center;
  align-items: center;
}
.video-material .right ul li div p {
  width: 74px;
  height: 74px;
  border: 1px solid #fff;
  border-radius: 50%;
  background: url('../img/22.png') center center no-repeat;
  background-size: 10% auto;
}
.video-material .right ul li.on {
  display: block;
}
.index-news {
  width: 100%;
  height: 21.5vw;
  margin-top: 50px;
  position: relative;
}
.index-news .swiper-slide {
  display: flex;
  width: 61%;
  height: 100%;
  background-color: #fff;
  position: relative;
}
.index-news .swiper-slide .left {
  width: 50%;height: 21.35vw;line-height: 21vw;
}
.index-news .swiper-slide .left img {
  width: 100%;
  height: 100%;
}
.index-news .swiper-slide .right {
  width: 50%;
}
.index-news .swiper-slide .right .main {
  width: 84%;
  margin: 0 auto;
}
.index-news .swiper-slide .right .main .p1 {
  font-size: 35px;
  color: #c0c0c0;
  font-family: 'HelveticaNeueCE-Thin';
  margin-top: 1vw;
}
.index-news .swiper-slide .right .main .p2 {
  font-size: 20px;
  color: #141313;
}
.index-news .swiper-slide .right .main .date {
  font-size: 16px;
  color: #b9b9b9;
  padding-top: 1vw;
}
.index-news .swiper-slide .right .main .title {
  font-size: 16px;
  color: #373737;
}
.index-news .swiper-slide .right .main .summary {
  font-size: 12px;
  color: #787878;
  padding-top: 1vw;
  line-height: 1.6;
  display: -webkit-box;
  -webkit-box-orient: vertical;
  -webkit-line-clamp: 3;
  overflow: hidden;
}
.index-news .swiper-slide .right .main .more {
  display: block;
  width: 134px;
  height: 41px;
  text-align: center;
  line-height: 41px;
  border: 1px solid #8a8a8a;
  font-size: 12px;
  color: #4f4f4f;
  margin-top: 3vw;
}
.index-news .swiper-slide .mask {
  position: absolute;
  left: 0;
  top: 0;
  width: 100%;
  height: 100%;
  background-color: rgba(255, 255, 255, 0.8);
  display: none;
}
.index-news .swiper-slide.swiper-slide-prev {
  flex-direction: row-reverse;
}
.index-news .swiper-slide.swiper-slide-prev .mask,
.index-news .swiper-slide.swiper-slide-next .mask {
  display: block;
}
.index-news .swiper-slide.swiper-slide-prev .swiper-button-prev,
.index-news .swiper-slide.swiper-slide-next .swiper-button-prev,
.index-news .swiper-slide.swiper-slide-prev .swiper-button-next,
.index-news .swiper-slide.swiper-slide-next .swiper-button-next {
  display: none;
}
.index-news .swiper-button-prev,
.index-news .swiper-button-next {
  width: 36px;
  height: 52px;
  margin-top: -26px;
}
.index-news .swiper-button-prev {
  background: rgba(0, 0, 0, 0.3) url(../img/24.png) center center no-repeat;
  left: 0;
}
.index-news .swiper-button-next {
  background: #fff500 url(../img/23.png) center center no-repeat;
  right: 50%;
}