.banner {
  max-width: 1920px;
  height: 650px;
  /* height: 900px ; */
  /* height:33.8vw !important; */
  width: 100%;
  background: url(../img/bg_14.png) no-repeat;
  background-size: cover;
  position: relative;
  background-position: 50% center;
  margin: auto;
}
.banner.banner-top{
  /* margin-top: 80px; */
}
.banner .centent {
  width: 100%;
  height: 100%;
  /* background-image: linear-gradient(#000000 -21%, rgba(255, 255, 255, 0.1) 100%); */
  display: flex;
  /* align-items: center; */
  justify-content: center;
}
.banner .centent .box {
  display: flex;
  align-items: center;
  flex-direction: column;
  color: #fff;
  margin-top: 40px;
}
.banner .centent .box .f60 {
  font-size: 56px;
  font-family: 'AtAeroMedium';
}
.banner .centent .box .f30 {
  font-size: 30px;
  font-family: 'Regular';
  margin: 6px 0 30px;
}
.banner .centent .box .btns {
  display: flex;
  align-items: center;
}
.banner .centent .box .btns .btn {
  font-size: 14px;
  border: 1px solid #fff;
  background-color: #fff;
  color: #000;
  width: 150px;
  height: 40px;
  border-radius: 20px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 10px;
  cursor: pointer;
  font-family: 'Regular';
}
.banner .centent .box .btns .btn:nth-child(2) {
  background-color: transparent;
  color: #fff;
}
.banner .nav {
  /* width: 100%;
  height: 80px;
  border-bottom: 1px solid #999;
  position: absolute;
  top: 0;
  left: 50%;
  transform: translateX(-50%); */
  display: none;
}
.banner .nav .box {
  width: 1440px;
  height: 80px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  color: #fff;
}
.banner .nav .list {
  display: flex;
  align-items: center;
}
.banner .nav .list .item {
  font-size: 16px;
  margin-left: 35px;
  cursor: pointer;
  font-family: 'Regular';
}
.banner .nav .list .btn {
  margin-left: 35px;
  width: 117px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  background-color: #19C76B;
  color: #fff;
  font-size: 16px;
  border-radius: 20px;
  cursor: pointer;
  font-family: 'Regular';
}
.list_1 {
  width: 100%;
  height: 100vh;
  height: 350vh;
  margin: 50px 0;
  padding-top: 80px;
  box-sizing: border-box;
  position: relative;
}
.list_1 .centent {
  padding: 50px 0;
  width: 1200px;
  height: 100vh;
  box-sizing: border-box;
  margin: 0 auto;
  width: 100%;
  position: sticky;
  top: 0;
  left: 0;
  display: flex;
  align-items: center;
  flex-direction: column;
}
.list_1 .centent .f40 {
  max-width: 1100px;
  width: 90%;
  font-size: 40px;
  line-height: 60px;
  text-align: center;
  background: linear-gradient(97deg, #19C76B 1%, #2ABDDD 98%);
  -webkit-background-clip: text;
  -moz-background-clip: text;
  background-clip: text;
  color: transparent;
  margin-bottom: 50px;
  font-family: 'AtAeroMedium';
  z-index: 1000;
}
.list_1 .centent .image {
  position: absolute;
  bottom: -150px;
  left: 50%;
  transform: translateX(-50%);
  max-width: 100%;
  max-height: 100%;
  width: 100%;
  height: 100%;
  z-index: 999;
}
.list_1 .centent .btn {
  width: 130px;
  height: 40px;
  background: linear-gradient(103deg, #19C76B 4%, #2ABDDD 95%);
  border-radius: 20px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 16px;
  color: #fff;
  margin-bottom: 50px;
  font-family: 'Regular';
}
.list_1 .centent .list {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  width: 80%;
  display: grid;
  grid-template-columns: repeat(4,1fr);
}
.list_1 .centent .list .item {
  /* width: 50%; */
  display: flex;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  margin-bottom: 50px;
}
.list_1 .centent .list .item p {
  font-family: 'Regular';
  font-size: 18px;
}
.list_1 .centent .list .item img {
  height: 70px;
  width: auto;
  margin-bottom: 20px;
}
.list_1 .centent:last-of-type .f40 {
  margin-top: 40px;
}
.list_2 .centent {
  width: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
}
.list_2 .centent .f40 {
  font-size: 56px;
  margin: 105px 0 45px;
  font-family: 'AtAeroMedium';
  font-weight: bold;
}
.list_2 .centent .box {
  width: 100%;
  max-width: 1920px;
  position: relative;
  height: 40vw;
  max-height: 700px;
  min-height: 450px;
  background-repeat: no-repeat;
  background-size: 100% 100%;
}
.list_2 .centent .box .list {
  display: flex;
  align-items: center;
  position: absolute;
  top: 40px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 99;
  justify-content: center;
}
.list_2 .centent .box .list .item {
  padding: 13px 30px;
  font-size: 14px;
  border: 1px solid #aaa;
  background-color: rgba(0, 0, 0, 0.6);
  border-radius: 50px;
  margin: 0 11px 10px;
  color: #fff;
  font-family: 'Regular';
  cursor: pointer;
  white-space: nowrap;
  /*width: fit-content;*/
  /*max-width: 280px;*/
  /*!* 防止文本换行 *!*/
  /*overflow: hidden;*/
  /*!* 超出部分隐藏 *!*/
  /*text-overflow: ellipsis;*/
}
.list_2 .centent .box .list .item.art,
.list_2 .centent .box .list .item:hover {
  background-color: #fff;
  color: #151515;
}
.list_2 .centent .box .image {
  width: 100%;
  height: 100%;
  position: relative;
  /* background-color: rgba(0, 0, 0, 0.3); */
  align-items: center;
  justify-content: center;
  display: none;
  overflow: hidden;
}
.list_2 .centent .box .image img {
  width: auto;
  height: 100%;
  position: relative;
  z-index: -1;
}
.list_2 .centent .box .image .text {
  position: absolute;
  width: 70%;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  max-width: 1800px;
}
.list_2 .centent .box .image .text p {
  width: 500px;
  font-size: 24px;
  color: #fff;
  font-family: 'Regular';
  line-height: 36px;
}
.list_2 .centent .box .image .text .btn {
  width: 130px;
  height: 40px;
  border: 1px solid #fff;
  border-radius: 40px;
  background-color: rgba(225, 225, 225, 0.1);
  color: #fff;
  font-size: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-top: 55px;
  font-family: 'Regular';
  cursor: pointer;
}
.list_2 .centent .box .image .text .btn:hover {
  background-color: rgba(225, 225, 225, 0.3);
}
.list_2 .centent .box .image.art {
  display: flex;
}
.list_3 {
  display: none;
}
.list_3 .centent {
  width: 1200px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  align-items: center;
}
.list_3 .centent .list {
  display: flex;
  align-items: center;
}
.list_3 .centent .list .item {
  margin: 0 15px;
}
.list_4 {
  background-color: #fff;
  padding: 100px 0 50px;
}
.list_4 .centent {
  max-width: 1200px;
  width: 90%;
  margin: 0 auto;
  display: flex;
  align-items: center;
  flex-direction: column;
}
.list_4 .centent .f40 {
  font-size: 40px;
  font-family: 'AtAeroMedium';
  margin-bottom: 50px;
}
.list_4 .centent .list {
  width: 100%;
  display: grid;
  grid-template-columns: repeat(5,1fr);
  grid-column-gap: 20px;
  grid-row-gap: 20px;
  /* flex-wrap: wrap; */
  /* justify-content: space-between; */
}
.list_4 .centent .list .item {
  /* width: 18.5%; */
  display: flex;
  flex-direction: column;
  margin-bottom: 40px;
}
.list_4 .centent .list .item .image {
  width: 100%;
  /* height: 224px; */
  display: flex;
  align-items: center;
  justify-content: center;
  background-color: #f5f5f5;
  border-radius: 10px;
}
.list_4 .centent .list .item .image img {
  transform: scale(0.8);
}
.list_4 .centent .list .item p {
  width: 80%;
  /* text-align: center; */
  font-size: 16px;
  margin-top: 10px;
  font-family: 'Regular';
}
.list_5 {
  display: flex;
  flex-direction: column;
  align-items: center;
  padding-top: 122px;
  background-color: #fff;
}
.list_5 .f40 {
  font-size: 40px;
  font-family: 'AtAeroMedium';
}
.list_5 .list .item {
  width: 800px;
  min-height: 60px;
  border-bottom: 1px solid #DDDDDD;
  padding-top: 24px;
  padding-bottom: 21px;
  box-sizing: border-box;
}
.list_5 .list .item .f40 {
  font-size: 40px;
  font-family: 'AtAeroMedium';
}
.list_5 .list .item .f20 {
  font-size: 20px;
  cursor: pointer;
  font-family: 'Regular';
}
.list_5 .list .item div.f18 {
  overflow: hidden;
  height: 0;
  color: #999;
  font-family: 'Regular';
}
.list_5 .list .item div.f18.art {
  height: auto;
  margin-top: 10px;
}
.list_5 .lists {
  max-width: 1040px;
  width: 90%;
  margin: 76px auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.list_5 .lists .item {
  display: flex;
  flex-direction: column;
  align-items: center;
}
.list_5 .lists .item img {
  /* height: 80px; */
  width: 72px;
}
.list_5 .lists .item .f24 {
  font-size: 20px;
  margin: 20px 0 24px;
  text-align: center;
  font-family: 'Regular';
}
.list_5 .lists .item a {
  font-size: 16px;
  color: #19C76B;
}
.list_6 {
  width: 100%;
  height: 400px;
  background: url(../img/bg_31.png) no-repeat;
  background-size: cover !important;
  background-position: 50% center;
}
.list_6 .centent {
  height: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
}
.list_6 .centent .f30 {
  margin-bottom: 50px;
  font-size: 30px;
  font-family: 'Regular';
  text-align: center;
}
.list_6 .centent .btn {
  width: 300px;
  height: 50px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 16px;
  border: 1px solid #666;
  color: #000;
  border-radius: 40px;
  background-color: transparent;
  cursor: pointer;
  font-family: 'Regular';
}
@media screen and (max-width: 1600px) {
  .banner .nav .box {
    width: 90%;
  }
  .list_2 .centent .box .list {
    width: 90%;
    flex-wrap: wrap;
  }
  .list_2 .centent .box .list .item {
    margin-bottom: 10px;
  }
}
@media screen and (max-width: 1024px){
  .list_1 .centent .image{
    background-size: contain !important;
    max-width: 400px;
  }
}
@media screen and (max-width: 768px){
  .banner.banner-top{
    margin-top: 60px;
  }
  .list_1{
    margin: 0;
    padding: 0;
  }
  
  .list_1 .centent .f40{
    width: 90%;
    font-size: 24px;
    line-height: 1.5;
  }
  /* .list_1 .centent .image{
    background-size: contain !important;
  } */
  .banner{
    background-size: contain;
    background-position: bottom;
    height: auto !important;
    display: flex;
    flex-direction: column-reverse;   
    align-items: flex-start;
     /* background-image: linear-gradient(#000000 -21%, rgba(255, 255, 255, 0.1) 100%) */
    /* background-color: rgba(0,0,0,.8); */
    background-color: #fff;
    padding-bottom: 40vw;
  }
  .banner .nav{
    height: auto;
    padding: 5px 0;
    position: static;
    transform: translate(0);
    /* background-color: rgba(0,0,0,.8); */
  }
  .banner .nav .box{
    height: auto;
    flex-direction: column;
  }
  .banner .nav .list{
    display: grid;
    grid-template-columns: repeat(2,1fr);
    grid-column-gap: 5px;
    grid-row-gap: 5px;
  }
  .banner .nav .list .item{
    margin: 0 20px;
  }
  .banner .nav .list .btn{
    grid-column-start: 1;
    grid-column-end: 3;
    width: auto;
    margin-left: 0;
  }
  .banner .centent{
    background-image: none;
    /* background-color: rgba(0,0,0,.8); */
  }
  .banner .centent .box{
    margin-top: 20px;
  }
  .banner .centent .box .f60{
    font-size: 30px;
    color: #000;
    text-align: center;
  }
  .banner .centent .box .f30{
    font-size: 16px;
    color: #000;
  }
  .banner .centent .box .btns .btn{
    height: 32px;
    font-size: 14px;
  }
  .banner .centent .box .btns .btn:nth-child(1){
    background-color: #19C76B;
    color: #fff;
  }
  .banner .centent .box .btns .btn:nth-child(2){
    border: 1px solid #000;
    color: #000;
  }
  .list_1 .centent .list{
    grid-template-columns: repeat(2,1fr);
    padding-top: 40px;
  }
  .list_1 .centent .list .item{
    margin-bottom: 17px;
  }
  .list_1 .centent .list .item img{
    width: 40px;
    height: auto;
    margin-bottom:10px;
  }
  .list_1 .centent .list .item p{
    font-size: 16px;
  }
  .list_2 .centent .f40{
    margin: 20px;
    font-size: 24px;
  }

  .list_2 .centent .box .list .item{
    padding: 5px 10px;
    flex-shrink: 0;
    margin-left: 0;
  }
  .list_2 .centent .box .list{
    position: static;
    transform: translate(0,0);
    width: 90%;
    overflow-x: auto;
    flex-wrap: wrap;
    justify-content: flex-start;
    flex-direction: column;
    align-items: flex-start;
    margin: auto;
  }
  .list_2 .centent .box{
    height: auto;
    min-height: 0;
    max-height: none;
  }
  .list_2 .centent .box .image.art{
    /* height: 700px; */
    flex-direction: column-reverse;
    background: rgb(244, 244, 244);
  }
  .list_2 .centent .box .image img {
    z-index:1 ;
  }
  .list_2 .centent .box .image .text{
    position: static;
    transform: translate(0,0);
    width: 90%;
  }
  .list_2 .centent .box .image .text p{
    color: #000;
    width: 90%;
    font-size: 16px;
    /* height: 72px; */
    line-height: normal;
    margin-bottom: 10px;
    /* text-align: justify; */
    word-break:break-all;
  }
  .list_2 .centent .box .image .text .btn{
    margin: 20px 0;
    height: 32px;
    color: #000;
    border: 1px solid #666;
  }

  .list_2 .centent .box .image img{
    width: 100%;
    height: auto;
  }
  .list_4{
    padding-top: 50px;
  }
  .list_4 .centent{
    width: 90%;
  }
  .list_4 .centent .f40{
    font-size: 24px;
    margin-bottom: 20px;
  }
  .list_4 .centent .list{
    grid-template-columns: repeat(2,1fr);
  }
  .list_4 .centent .list .item .image{
    height: auto;
  }
  .list_4 .centent .list .item{
    margin-bottom: 20px;
  }
  .list_4 .centent .list .item p{
    font-size: 16px;
  }
  .list_5{
    padding-top: 0;
  }
  .list_5 .f40{
    font-size: 24px;
  }
  .list_5 .list .item{
    width: 90%;
    margin: auto;
  }
  .list_5 .lists{
    width: 90%;
    display: grid;
    grid-template-columns: repeat(2,1fr);
  }
  .list_5 .lists .item img{
    width: 40px;
  }
  .list_5 .lists .item .f24{
    font-size: 16px;
  }
  .list_5 .list .item div.f18.art{
    font-size: 16px;
  }
  .list_6 .centent .f30{
    font-size: 30px;
    width: 90%;
  }
  .list_6 .centent .btn{
    height: 32px;
    font-size: 14px;
  }
  /* .consult .centent{
    padding: 0 5%;
    box-sizing: border-box;
  } */
  .consult .centent .inp{
    width: 100%;
  }
  .consult .centent p input{
    margin-right: 5px;
  }
}


/* product_details1.html */
.product_details-advantage-list{
  background-color: #fff;
  padding-top: 120px;
}
.product_details-advantage-list .item{
  max-width: 1200px;
  width: 90%;
  margin: auto;
  font-family: 'Regular';
}
.product_details-advantage-list .item:not(:last-child){
  margin-bottom: 120px;
}
.product_details-advantage-list .item .title{
  font-size: 40px;
  font-weight: 600;
  margin-bottom: 40px;
}
.product_details-advantage-list  .child-item{
  display: flex;
  align-items: center;
  grid-column-gap: 40px;
}
.product_details-advantage-list  .child-item:not(:last-child){
  margin-bottom: 40px;
}
.product_details-advantage-list  .child-item:nth-child(even){
  flex-direction: row-reverse;
}
.product_details-advantage-list  .child-item .image{
  width: 41%;
  flex-shrink: 0;
  border-radius: 10px;
  overflow: hidden;
}
.product_details-advantage-list  .child-item .text1{
  font-size: 30px;
}
.product_details-advantage-list  .child-item .text2{
  font-size: 20px;
  margin-top: 30px;
}


@media screen and (max-width: 768px){
  .product_details-advantage-list  .child-item:nth-child(even),
  .product_details-advantage-list  .child-item{
    flex-direction: column;
  }
  .product_details-advantage-list  .child-item .image{
    width: 100%;
  }
  .product_details-advantage-list  .child-item .text{
    margin-top: 2vw;
  }
  .product_details-advantage-list  .child-item .text2{
    margin-top: 1vw;
  }
}

/* product_details2.html */

.product_details-advantage-list2{
  background-color: #fff;
  font-family: 'Regular';
}
.product_details-advantage-list2-container .product_details-advantage-list2:not(:last-child){
  padding-bottom: 120px;
}
.product_details-advantage-list2 .text{
  color: #fff;
  font-size: 40px;
  font-family: 'AtAeroMedium';
  text-align: center;
  padding-top: 40px;
}
.advantage-info-list .item.active{
  animation: opacityShow 1s cubic-bezier(0, 0.44, 0, 1.02);
}

.advantage-tw-list .item:not(.active),
.advantage-info-list .item:not(.active){
  display: none;
}
.advantage-tw-nav{
  max-width: 1200px;
  margin: auto;
  width: 90%;
  display: flex;
  justify-content: center;
  padding-top: 25px;
  margin-bottom: 20px;
}
.advantage-tw-nav .item{
  padding: 15px 40px;
  border-bottom: 1px solid #ddd;
  cursor: pointer;
  transition: color .3s, border .3s;
  font-size: 20px;
}
.advantage-tw-nav .item.active,
.advantage-tw-nav .item:hover{
  color: #19C76B;
  border-bottom: #19C76B 1px solid ;
}
.advantage-info-list {
  max-width: 800px;
  margin: auto;
  width: 90%;
  font-size: 20px;
}





/* product_details.html  product_details1.html  product_details2.html */ 
.product_details-parameters{
  font-family: 'Regular';
  background: #fff;
  padding-top: 120px;
}
.product_details-parameters .title{
  font-family: 'AtAeroMedium';
  font-size: 40px;
  text-align: center;
  max-width: 1200px;
  width: 90%;
  margin: auto;
}
.display-way-nav{
  display: flex;
  max-width: 1200px;
  width: 90%;
  margin:30px auto;
  justify-content: center;
  font-size: 30px;
}
.display-way-nav .item{
  border-bottom: 1px solid #ddd;
  padding: 22px 50px;
  box-sizing: border-box;
  transition: color .3s ,border .3s;
}
.display-way-nav .item.active,
.display-way-nav .item:hover{
  color: #19C76B;
  border-bottom: 1px solid #19C76B;
  cursor: pointer;
}
.display-way{
  max-width: 1000px;
  width: 90%;
  margin: auto;
}

.display-way >div:not(.active){
  display: none;
}
.display-way .image img{
  width: 100%;
}
.display-way .three-d{
  height: 500px;
  width: 100%;
}
.display-way .three-d model-viewer{
  width: 100%;
  height: 100%;
}