header {
    padding: 20px 0;
    background: #ccc;
  }
  .w960 {
    width: 100%;
    background-color: #1a1a1a;
    overflow: hidden;
    margin-bottom: 5px;
    /* max-height: 768px; */
  }
  .w960 video {
    width: 100%;
    margin: 0 auto;
    /* height: 768px; */
  }
  .w960 img {
    height: 768px;
    width: auto;
    margin: 0 auto;
  }
  .twopart {
    display: none;
    margin-top: 5px;
  }
  .brandcarousel .swiper-slide img {
    width: 100%;
    margin: 0 auto;
  }
  .brandcarousel2 .swiper-slide img {
    width: 100%;
    margin: 0 auto;
  }
  .swiper-button-prev,
  .swiper-container-rtl .swiper-button-next {
    outline: none;
    background-image: url("../img/left-arrow.png") !important;
    width: 64px;
    height: 64px;
    background-size: 100% 100%;
  }
  .swiper-button-next,
  .swiper-container-rtl .swiper-button-prev {
    outline: none;
    transform: rotate(-180deg);
    background-image: url("../img/left-arrow.png") !important;
    width: 64px;
    height: 64px;
    background-size: 100% 100%;
  }

  /* 三个产品的详情页 */
  .conmondetial{display: none;width: 100%;height: 100%;z-index: 200;
    position: fixed;top: 0;left: 0;background-color: rgba(0, 0, 0, 0.5);}
   
    .product-detail{width:100%;height: 100vh;display: flex;justify-content: center;align-items: center;}
    .product-detail img{width: 80%;}
    .close-detail{position: absolute;top: 50px;right: 50px;width: 50px;z-index: 300;opacity: 0;}
    .ipadluminaire{display: flex;margin:5px 0 5px;justify-content: space-between;align-items:center;flex-wrap: wrap;}
    .ipadluminaire.san{align-items:flex-start;position: relative;}
    .ipadluminaire .product:nth-of-type(1){width: 50%;}
    .ipadluminaire .product:nth-of-type(2){width: 50%;}
    .ipadluminaire .product:nth-of-type(3){width: 50%;}
    .ipadluminaire .product:nth-of-type(4){width: 50%;}
    .ipadluminaire .product:nth-of-type(5){width: 100%;}
    .pccontent{
       display: flex;
       justify-content: space-between;align-items: center;
       margin-top: 5px;
       flex-wrap: wrap;
   }

   .pccontent > div:nth-of-type(1){width: 33.33%;}
   .pccontent > div:nth-of-type(2){width: 33.33%;}
   .pccontent > div:nth-of-type(3){width: 33.33%;}
   .pccontent > div:nth-of-type(4){width: 50%;}
   .pccontent > div:nth-of-type(5){width: 50%;}

  .mb5 {
    margin-bottom: 5px;
  }

  .threecarousel {
    width: 90%;
    position: absolute;
    z-index: 210;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
  }

  .carousel {
    width: 100%;
  }
  .carousel .swiper-slide img {
    min-width: 750px;
    background-color: #ddd;
  }
  .rbox {
    position: absolute;
    right: 0;
    top: 0;
    height: 100%;
    width: 0%;
    background: #fff;
    box-shadow: 0 0 5px #ddd;
    transition: width 0.8s;
  }
  .rbox.w50 {
    width: 50%;
  }
  .rbox.w100 {
    width: 100%;
  }
  .rboxcolor {
    background-color: #333;
  }
  .rboxcolor2,
  .rboxcolor3 {
    background-color: #fff;
  }
  .rbox-top1 {
    font-size: 60px;
    color: #fff;
    text-align: center;
  }
  .rbox-bottom1 {
    font-size: 30px;
    color: #fff;
    margin: 20px auto;
    text-align: center;
  }
  .swiper-pagination-bullet {
    width: 50px;
    height: 2px;
    border-radius: 0;
  }
  .indexSwiperOrigin_Banner .swiper-pagination-bullet {
    background: hsla(0, 0%, 80%, 0.5) !important;
  }
  .swiper-pagination-bullet-active {
    background-color: #ccc !important;
  }
  .carousel .coursoulpagination {
    position: absolute;
    bottom: 6%;
    width: 100%;
    left: 25%;
  }

  .rbox-top2,
  .rbox-top3 {
    color: #333;
    font-family: "Helvetica25";
  }
  .rbox-bottom2,
  .rbox-bottom3 {
    color: #333;
    font-family: "Helvetica35";
  }
  .keyproducts {
    width: 100%;
    margin: 10px auto;
  }
  .keyproducts .swiper-slide {
    width: 200px !important;
    margin: 0 5px;
  }
  .keyproducts .swiper-slide img {
    width: 100%;
    margin: 0 10px;
  }

  .brandsall {
    display: flex;
    flex-direction: column;
    align-items: center;
    min-width: 750px;
    max-width: 1000px;
    margin: 0 auto;
    margin-top: 70px;
  }
  .brand-top,
  .brand-bottom {
    display: flex;
    justify-content: center;
    align-items: center;
  }
  .relative {
    position: relative;
  }
  .xiexian {
    position: absolute;
    width: 100px;
    background-color: #cccccc;
    top: 62px;
    right: 20px;
    display: block;
    height: 1.5px;
    transform-origin: 50% 50%;
    transform: rotate(-45deg);
    z-index: 10;
  }
  .xiexian2 {
    position: absolute;
    width: 100px;
    background-color: #cccccc;
    bottom: 62px;
    left: 20px;
    display: block;
    height: 1.5px;
    transform-origin: 50% 50%;
    transform: rotate(-45deg);
    z-index: 10;
  }
  .brand-font {
    position: absolute;
    left: 50%;
    top: 50%;
    transform: translate(-50%, -50%);
    font-size: 18px;
    font-family: "Helvetica35";
  }
  .brand-fontone {
    color: #333;
  }
  .mask2 {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
    color: #ffffff;
    opacity: 0;
    transition: all 0.5s;
  }

  .relativefont a {
    display: block;
    width: 250px;
    height: 248.3px;
    background-color: #ededed;
    position: relative;
  }
  .relative a:hover .mask2 {
    opacity: 1;
  }
  .relativefont a:hover {
    background-color: #333;
    color: #fff;
  }
  .relativefont a:hover .brand-fontone {
    color: #fff;
  }

  .baobao {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
  }
  .baobao h1 {
    font-family: "Avenir Next Ultra Light";
    font-size: 60px;
  }
  .baobao p {
    font-family: "Avenir Next Ultra Light";
    font-size: 47.7px;
  }
  .box {
    margin-top: 80px;
    width: 100%;
    height: 340px;
    position: relative;
  }

  .samehead {
    text-align: center;
    margin-top: 100px;
    position: relative;
  }
  .samehead h1 {
    font-size: 30px;
  }
  .samehead p {
    font-size: 15px;
    margin-top: 10px;
    color: #a9a9a9;
    font-family: "Helvetica35";
  }
  .three {
    margin-top: 100px;
  }

  .productcommon {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin: 0 auto;
    min-width: 750px;
    max-width: 1000px;
  }
  .product-one {
    margin-top: 70px;
  }
  .product-two,
  .product-three,
  .product-four {
    margin-top: 10px;
  }
  .product-oneright {
    margin-right: 200px;
  }
  .product-twoleft {
    margin-left: 200px;
  }
  .product-threeright {
    margin-right: 200px;
  }
  .product-fourleft {
    margin-left: 200px;
  }
  .product-oneright p,
  .product-twoleft p,
  .product-threeright p,
  .product-fourleft p {
    font-family: "Helvetica35";
    font-size: 20px;
    line-height: 1.5;
    text-align: center;
  }
  .product-oneright p:after,
  .product-twoleft p:after,
  .product-threeright p:after,
  .product-fourleft p:after {
    width: 50px;
    height: 2px;
    display: block;
    content: "";
    background-color: #ddd;
    margin: 10px auto;
  }
  .productcommon .hexin-img img:hover {
    transform: scale(1.2);
    width: 150px;
    overflow: hidden;
    cursor: pointer;
  }

  .luminaireone {
    overflow: hidden;
    width: 50%;
  }
  .luminairethree {
    margin-top: 3px;
  }
  .lumtwo {
    width: 50%;
  }
  .four {
    display: none;
    align-items: center;
    margin: 0 auto 5px;
    justify-content: space-between;
    width: 100%;
  }
  .pccontent {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-top: 5px;
  }
  .four-twoimg,
  .four-threeimg {
    margin-left: 5px;
  }
  .four-img {
    cursor: pointer;
  }

  .application {
    margin-top: 100px;
  }
  .sd-wrap {
    position: relative;
    width: 100%;
  }
  .sd-wrap .flex {
    display: flex;
    margin-top: 0px;
  }
  .sd-wrap .flex-top {
    margin-top: 70px;
  }
  .sd-item {
    width: 33.3%;
    height: 640px;
    background: none;
    overflow: hidden;
    position: relative;
  }
  .sd-item img {
    width: 100%;
    height: 100%;
  }

  /*  .fvideo{width: 100%;}
  .video{width: 100%;height: 650px;overflow: hidden;}
   .video video{width: 100%;} */
  .swiper7-box {
    margin-bottom: 5px;
    background-color: #1e211e;
    overflow: hidden;
    width: 100%;
    /* height: 768px; */
  }
  .fvideo {
    /* width: auto!important; */
    display: block;
    margin: 0 auto;
    height: 100%;
    object-fit: fill;
    z-index: 1;
  }
  /* .video{width: 100%;overflow: hidden;}
   .video video{ width: 100%;
  height: 100%;
  object-fit: fill;
  z-index: 1;} */

  .footer1,
  .footer2-top,
  .footer2-bottom {
    align-items: flex-end !important;
    min-width: 700px;
  }
  .footer2-bottom .year{font-size: inherit;}
  .footer2 {
    padding: 30px;
  }
  .footer-qrfangda {
    width: 160px;
    position: absolute;
    left: -30px;
    top: -200px;
    z-index: 20;
    display: none;
  }

  /* 章节6 */
  .box-six {
    opacity: 0;
    position: relative;
    /* background: #1a1a1a url(../img/media6.jpg) no-repeat center; */
    width: 100%;
  }
  .box-sixall {
    width: 750px;
    /* width: 860px; */
    /* min-width: 750px;max-width: 1000px; */
    display: flex;
    height: 100%;
    align-items: center;
    justify-content: flex-end;
    margin: 0 auto;
  }
  .boxsix-menu {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    justify-content: space-between;
    width: 220px;
    /* margin-right:20px; */
  }
  .boxsix-menu li {
    display: flex;
    align-items: center;
  }
  .boxsix-menu li.on span {
    font-family: "Thotf";
    color: rgba(255, 255, 255, 1);
  }
  /* .boxsix-menu li img{width:60px;} */
  .boxsix-menu li span {
    cursor: pointer;
    font-size: 45px;
    color: #fff;
    font-family: "UltLtotf";
    line-height: 1.5;
    font-weight: lighter;
  }
  .boxsix-content {
    display: none;
    flex-direction: column;
    justify-content: space-between;
    align-items: flex-start;
  }

  .boxsix-content6 {
    flex-direction: column;
  }
  /* .boxsix-content p,.boxsix-content span{color: #fff;font-size: 20px;font-family: "Helvetica";} */
  .conmoncolumn {
    display: flex;
    align-items: center;
  }
  .conmonli,
  .contactline {
    display: flex;
    align-items: center;
    margin: 10px;
    width: 200px;
  }
  .conmonli video {
    width: 100%;
  }
  /* .conmonli img,.contactline img{width: 50px;} */
  .conmonli span,
  .contactline span {
    font-size: 20px;
    font-family: "Helvetica35", "Helvetica25";
    color: #fff;
  }
  /* .conmonli:hover{
  transform: scale(1.1);} */

  .boxsix-content {
    /* width: 440px; */
    width: 400px;
    overflow: hidden;
    position: relative;
  }
  .sixwrap {
    width: 200%;
    position: relative;
    height: 100%;
    left: 0;
  }
  .sixbox {
    display: flex;
    /* justify-content: space-between; */
    justify-content: center;
    flex-wrap: wrap;
    /* width: 440px; */
    width: 400px;
    float: left;
  }
  /* .boxsix-item{width: 200px;margin: 10px;} */
  .boxsix-item {
    width: 160px;
    margin: 5px;
    cursor: pointer;
  }
  .boxsix-item span {
    font-size: 20px;
    color: #fff;
    /* font-family: 'syht'; */
    font-family: "Helvetica35", "Helvetica25";
  }
  .boxsix-item video {
    width: 100%;
  }
  .sixleft {
    outline: none;
    background-image: url(../img/left-arrow.png) !important;
    width: 64px;
    height: 64px;
    background-size: 100% 100%;
    position: absolute;
    top: 46%;
    left: 10px;
    cursor: pointer;
  }
  .sixright {
    outline: none;
    background-image: url(../img/left-arrow.png) !important;
    transform: rotate(-180deg);
    width: 64px;
    height: 64px;
    position: absolute;
    top: 46%;
    right: 10px;
    background-size: 100% 100%;
    cursor: pointer;
  }

  .vbox .center video {
    width: 1000px;
  }
  .chacha {
    position: absolute;
    width: 40px;
    top: -70px;
    right: 30px;
  }

  #pdf {
    width: 100%;
    height: 100vh;
  }
  .pdf .close {
    position: absolute;
    width: 40px;
    top: 80px;
    right: 50px;
  }

  /* 章节6 */

  /* body{
  background-color: skyblue;
  } */
  .img-box{position: relative;overflow: hidden;}
  .jump-wrap{
    position: absolute;
    /* display: none; */
    width: 3.7%;
  }
  .jump-icon{
    width: 100%;
    opacity: .7;
    animation: point-scale .8s linear forwards infinite;
  }

  .jump-wrap:hover .jump-point{
    background-color: #f1ad2f;
  }
  .jump-wrap:hover .jump-card{
    visibility: visible;
    opacity: 1;
  }
  .jump-point{
    position: relative;
    width: 40px;
    height: 40px;
    border: 6px solid #fff;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    background-color: #ffcc6e;
    transition: all .3s;
    animation: point-scale .8s linear forwards infinite;
  }
  @keyframes point-scale {
    50%{
      transform: scale(.93);
    }
  }

  .jump-circle{
    width: 13px;
    height: 13px;
    background-color: #fff;
    border-radius: 50%;
  }
  .jump-card{
    position: absolute;
    width: 180px;
    padding: 20px;
    background-color:#fff;
    border-radius: 5px;
    top: -30px;
    left: 60px;
    visibility: hidden;
    opacity: 0;
    transition: all .5s;
  }
  .jump-card::after{
    content: '';
    position: absolute;
    top: 45%;
    left: -10px;
    border-right: 10px solid #fff;
    border-top: 10px solid transparent;
    border-bottom: 10px solid transparent;
  }
  .jump-card a{
    font-size: 16px;
    color: #000;
  }
  .jump-card a:hover{
    text-decoration: underline;
  }
  .jump-card .jump-title2{
    margin-top: 15px;
    font-size: 16px;
    color: #888;
  }
  .ruler{
    position: absolute;


    /* left: 28.1%; 
    width: 3.2%;*/
    height: 5%; 

    /* left: 14.1%;width: 4.8%;height: 4.8%; */

    top: 64%;
    left: 0;
    width: 2000px;

    background-color: rgba(255, 255, 255, .6);
    z-index: 50;
    display: none;
  }

  .lang-de,.lang-world{display: none;}

  /* ==================弹窗============= */
  .mask{z-index: 1000;background-color: rgba(0, 0, 0, 0.5);color: #333;}
  /* .tc-jingxiaoshang{display: block;} */
  .mask-wrap{
    position: absolute;
    top: 100px;
    left: calc(50% - 350px);
    width: 700px;
    max-height: 700px;
    overflow-y: scroll;
    border-radius: 10px;
    background: #fff;
    box-sizing: border-box;
    padding: 30px;
    user-select: auto;
  }
  .mask-wrap h1{
    font-size: 24px;
    font-weight: bold;
    margin-bottom: 40px;
    text-align: center;
    user-select: text;
  }
  .mask-wrap h2{
    font-size: 18px;
    font-weight: bold;
    margin-bottom: 10px;
    line-height: 1.3;
    user-select: text;
  }
  .mask-wrap p{
    font-size: 16px;
    line-height: 1.5;
    user-select: text;
  }
  .mask-wrap a{
    font-size: 16px;
    line-height: 1.5;
    user-select: text;
    color: royalblue;
    text-decoration: underline;
  }
  .close{
    width: 30px;
    position: absolute;
    right: 0px;
    top: 0px;
    cursor: pointer;
  }


  @media screen and (min-width: 768px) and (max-width: 1024px) {
    .lumtwo {
      width: 50.1%;
    }
    /* .vbox .center video{width: 700px;} */
    .ml-oneimg,
    .menu-left span {
      margin-right: 20px;
    }
    .menu-left {
      justify-content: flex-start;
      margin-left: 13px;
    }
    .boxsix-menu li span {
      font-size: 45px;
    }
    /* .boxsix-item span{font-size: 45px;} */

    /* .box-sixall{width: 100%;justify-content: center;} */
  }
  @media screen and (min-width: 1025px) and (max-width: 1366px) {
    .lumtwo {
      width: 50.1%;
      margin-left: 3px;
    }
  }
  @media screen and (width: 768px) {
    .lumtwo {
      width: 49.85%;
    }
  }
  @media screen and (min-width: 768px) and (max-width: 1366px) {
    .box-sixall {
      width: 600px;
    }
    .boxsix-content {
      width: 350px;
    }
    .sixbox {
      width: 350px;
    }
  }
  @media screen and (max-width: 1020px) {
    .box-sixall {
      transform: scale(0.75);
    }
  }