* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
  }
  *:before,
  *:after {
    vertical-align: middle;
    box-sizing: border-box;
  }
  li {
    list-style: none;
  }
  ul {
    padding: 0;
    margin: 0;
  }
  a {
    color: #fff;
    text-decoration: none;
  }
  input,
  textarea {
    color: #fff;
  }
  a:hover {
    text-decoration: none !important;
    color: #999;
  }
  a:focus {
    text-decoration: none !important;
    outline: none !important;
  }
  button:focus,
  button:hover {
    outline: none !important;
  }
  ul,
  ol {
    margin: 0;
    padding: 0;
  }
  img {
    max-width: 100%;
    vertical-align: middle;
  }
  input,
  button {
    outline: none;
  }
  body {
    width: 100%;
    height: 100%;
    font-family: "微软雅黑";
    font-size: 12px;
    color: #fff;
    background: #000;
  }
  /* 主体 */
  .w {
    max-width: 1400px;
    box-sizing: border-box;
  }
  header {
    width: 100%;
    height: 100px;
    margin: 0 auto;
    z-index: 99999999!important;
  }
  header .top {
    width: 1400px;
    height: 100px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    box-sizing: border-box;
    position: fixed;
    top: 0;
    margin: 0 auto;
    z-index: 99999999;
  }
  header .login-body{width:80px;}
  header .login {
    display: block;
  text-align:center; 
    color: #fff;
    padding: 5px;
  }
  main {
    position:relative;
    margin: 0 auto;
    display: flex;
    justify-content: start;
    align-items: start;
    box-sizing: border-box;
    margin-top: 120px;
  }
  main .back span{width:80px;display:block;margin-left:auto;}
  main nav {
    width: 14%;
    height: 400px;
    margin-right: 7%;
    box-sizing: border-box;
    position: sticky;
    position: -webkit-sticky;
    top: 120px;
    flex-shrink: 0;
  }
  main nav ul {
    display: flex;
    flex-direction: column;
    /*margin-top: 20px;*/
    box-sizing: border-box;
  }
  main nav ul li {
    margin-top: 20px;
  }
  main nav ul li:first-child{margin-top:0;}
  main nav ul .connect {
    margin-top: 50px;
  }
  main nav ul li a {
    display: inline-block;
    width: 100%;
    height: 100%;
  }

@media screen and (min-width: 751px) {
    
    main .back{
        position: absolute;
        right: 0;
        top: 0;
        word-break: break-all;
        width: 80px;
    }
}
  .content-wrap {
    width: 61%;
    height: 100%;
    margin-bottom: 200px;
    box-sizing: border-box;
  }
  .content-item {
    position: relative;
    width: 283px;
    height: 287px;
    overflow: hidden;
  }
  .content-item img {
    position: absolute;
    top: 0;
    left: 0;
    z-index: 1;
    width: 100%;
    height: 100%;
  }
  .content-item:hover .img-hide {
    z-index: 0;
  }
  .content-list {
    width: 100%;
    height: 100%;
    display: flex;
    justify-content: start;
    align-items: center;
    flex-wrap: wrap;
  }
  footer {
    margin: 0 auto;
    position: relative;
    height: 100px;
    line-height: 100px;
    margin-top: 150px;
  }
  footer p {
    text-align: center;
  }
  footer .code {
    position: absolute;
    left: 0;
    bottom: 0;
  }
  /* 手机端导航 隐藏 */
  .mob-home {
    display: none;
  }
  /*联系我们  */
  .content-connect {
    width: 100%;
    display: flex;
    justify-content: center;
    flex-direction: column;
    align-items: center;
    box-sizing: border-box;
  }
  .content-connect p {
    width: 250px;
    height: 50px;
    line-height: 50px;
    border-bottom: 1px solid #fff;
    display: flex;
    justify-content: space-between;
    align-items: center;
  }
  .content-connect p input {
    background: #000;
    border: none;
    height: 30px;
    width: 170px;
  }
  .content-connect p textarea {
    background: #000;
    border: 0;
    width: 100%;
    outline: none;
    height:60px; 
    padding:5px;
    margin-top:10px;
max-width:100%;
font-family: "微软雅黑";
  }
  .content-connect p input:focus {
    background: #111;
  }
  .content-connect p textarea:focus {
    background: #111;
  }
  .content-connect p label {
    cursor: pointer;
  }
  .content-connect .messages {
    height: auto;
    display: block;
    line-height: 1.8;
    margin-top:15px;
   font-size:0;
  }
  .content-connect .messages label{
    line-height: 1.2;
    margin-top:20px;
    font-size: 12px;
  }
  #messages {
    height: 80px;
  }
  .content-connect .submit a {
    display: inline-block;
    margin-left: 85%;
    margin-top: 20px;
  }
  .address {
    margin-top: 50px;
  }
  .address ul {
    text-align: center;
  }
  .address ul li {
    height: 30px;
    line-height: 30px;
  }
  /* 下载 页码 */
  .page {
    margin-right: 70px;
    margin-top: 50px;
    display:flex;align-items:center;
    justify-content:flex-end;
  }
  .page a {
    font-size: 12px;
    /*margin-left: 20px;*/
    border: 1px solid #fff;
      padding: 4px 8px;
      color: #fff;
      border-radius: 2px;
      margin: 0 2px;
      transition:all .4s;
      display:block;
  }
  .page a.active,
  .page a:hover{
    background-color:#fff;
    color:#000;
  }
  
  @media screen and (max-width: 751px) {
    .page{
      justify-content: center;
      width: 100%;
    }
  }
  .down-list {
    margin-top: 250px;
    margin-left: 110px;
  }
  .down-list > li {
    height: 100%;
    margin-top: 20px;
  }
  #down-list-s {
    display: none;
    margin-left: 10%;
    margin-top: 5px;
  }
  #down-list-s > li a {
    margin-top: 12px;
    color: #666;
  }
  /* 下载详情 */
  .content-pdf {
    margin: 0 auto;
    width: 60%;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
  }
  .content-pdf p {
    margin-top: 18px;
  }
  .content-pdf img {
    width: 70%;
  }
  /* 楷模品牌 */
  .content-list .koomo-img {
    width: 100%;
    margin-top: -260px;
  }
  /* 登录页面 */
  .content-login {
    width: 80%;
    display: flex;
    justify-content: center;
    flex-direction: column;
    align-items: center;
    height: 400px;
    box-sizing: border-box;
    margin: 0 auto;
  }
  .content-login h3 {
    font-weight: normal;
    margin-bottom: 20px;
    font-size: 16px;
  }
  .content-login h3 span {
    display: block;
    font-size: 13px;
    margin-top: 3px;
  }
  .content-login form {
    margin-left: -20px;
  }
  .content-login p {
    width: 250px;
    height: 30px;
    border-bottom: 1px solid #fff;
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-top: 10px;
  }
  .content-login p input {
    background: none;
    border: none;
    height: 30px;
    width: 170px;
  }
  .content-login p label {
    cursor: pointer;
    margin-top: 10px;
  }
  .content-login .submit a {
    display: inline-block;
    margin-left: 85%;
    margin-top: 20px;
  }
  .content-login .submit a img {
    display: inline-block;
    width: 44px;
    height: 31px;
  }
  /* 证书*/
  @media (max-width: 1400px) {
    .w {
      width: 100%;
      padding-left: 5%;
      padding-right: 5%;
    }
    header .login {
      display: block;
      transform: scale(0.93);
      margin-right: 15%;
    }
  }
  @media (max-width: 1280px) {
    .w {
      width: 90%;
    }
    header .login {
      display: block;
      transform: scale(0.93);
    }
    header .top {
      width: 80%;
      /* padding: 10px 20px 0; */
      height: 80px;
      /* z-index: 0; */
    }
    header .login {
      display: block;
      transform: scale(0.93);
    }
    header .login {
      display: block;
      transform: scale(0.93);
      margin-right: 2%;
    }
    .content-item {
      width: 50%;
    }
    main nav {
      width: 15%;
      position: static;
    }
  }
  @media (max-width: 992px) {
    .content-wrap {
      width: 60%;
    }
    .content-item {
      width: 50%;
    }
    .content-item img {
      width: 100%;
    }
    main nav {
      display: block;
      width: 30%;
      height: 400px;
      margin-right: 100px;
      box-sizing: border-box;
      position: sticky;
      position: -webkit-sticky;
      top: 100px;
      margin-left: 10%;
    }
    .w {
      width: 99%;
    }
    header .top {
      width: 100%;
      /* padding: 10px 20px 0; */
      height: 80px;
      /* z-index: 0; */
    }
    .content-wrap {
      width: 60%;
    }
    .content-item {
      width: 50%;
    }
    .mob-home {
      display: none;
    }
    header .login {
      display: inline-block;
      margin-right: 8%;
    }
    main nav {
      display: block;
      width: 20%;
      height: 400px;
      margin-right: 100px;
      box-sizing: border-box;
      position: sticky;
      position: -webkit-sticky;
      top: 100px;
    }
    header .login {
      display: block;
      transform: scale(0.93);
    }
  }
  @media (max-width: 768px) {
    .mob-home {
      display: none;
    }
    header .login {
      display: block;
      transform: scale(0.93);
    }
    header .login {
      display: inline-block;
      margin-right: 8%;
    }
    .content-wrap {
      width: 80%;
    }
    main nav {
      width: 18%;
      position: static;
    }
  }
  @media (max-width: 576px) {
    .w {
      width: 100%;
    }
    header {
      width: 100%;
      /* padding: 10px 20px 0; */
      height: 80px;
      /* z-index: 0; */
    }
    header .top {
      width: 100%;
      display: flex;
      flex-direction: row;
      /* padding: 10px 20px 0; */
      height: 80px;
      box-sizing: border-box;
      z-index: 99;
      padding: 0 5%;
    }
    main {
      margin-top: 0px;
      flex-direction: column;
      height: 100%;
      width: 100%;
      margin: 0 auto;
    }
    main nav {
      width: 100%;
      margin-right: 0;
      justify-content: center;
      align-items: center;
      display: none;
    }
    .content-wrap {
      width: 100%;
      height: 100%;
      margin: 0 auto;
      flex: 1;
      margin-bottom: 80px;
    }
    .none-pic {
      display: none;
    }
    .content-list {
      width: 100%;
      margin: 0 auto;
      display: flex;
      /* justify-content: space-around; */
      box-sizing: border-box;
      flex-wrap: wrap;
      align-items: center;
      align-content: flex-start;
    }
    .content-item {
      width: 50%;
    }
    .content-item img {
      width: 100%;
      height: 100%;
      object-fit: contain;
    }
    header .login {
      display: none;
    }
    /* mobile nav */
    .mob-home {
      width: 30px;
      height: 18px;
      display: inline-block;
      background: #000;
      z-index: 9999;
      /* margin-right: 5%; */
    }
    .span-line {
      cursor: pointer;
      list-style: none;
      width: 32px;
      height: 24px;
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }
    .mob-home span {
      display: block;
      width: 32px;
      height: 3px;
      background-color: #ccc;
    }
    header .mob-home .mob-ul {
      position: absolute;
      width: 100vw;
      height: 100%;
      top: 80px;
      left: 0;
      z-index: 9999;
      background: rgba(0, 0, 0, 0.2);
      display: flex;
      justify-content: space-around;
      display: none;
    }
    header .mob-ul li {
      width: 100%;
      height: 8vh;
      line-height: 8vh;
      background: #000;
    }
    header .mob-ul li a {
      padding-left: 50px;
      box-sizing: border-box;
      font-size: 15px;
      width: 100%;
      height: 100%;
      display: inline-block;
    }
    header .mob-ul li:hover {
      background: #666;
    }
    .content-connect {
      margin-top: 50px;
      margin-bottom: 20px;
    }
    .content-list .koomo-img {
      width: 100%;
      margin-top: 0px;
    }
  }
  /* ==================== 通用 - 主体 start ==================== */
  @media screen and (max-width: 751px) {
    .w {
      padding-left: 0;
      padding-right: 0;
    }
  }
  /* ==================== 通用 - 主体 start ==================== */
  /* ==================== 首页 - 产品列表 start ==================== */
  .mxw-product {
    max-width: 61%;
    /*display: flex;*/
    align-items: center;
    flex-wrap: wrap;
    margin-bottom: 210px;
    min-width: 0;
   flex-grow: 1;
  }
  .mxw-product .item {
    display: block;
    text-align: center;
    cursor: pointer;
    filter: grayscale(100%);
    -webkit-filter: grayscale(100%);
    -moz-filter: grayscale(100%);
    -ms-filter: grayscale(100%);
    -o-filter: grayscale(100%);
    filter: progid:DXImageTransform.Microsoft.BasicImage(grayscale=1);
    -webkit-filter: grayscale(1);
  }
.mxw-product .item:nth-child(3)~.item{margin-top:20px;}
  .mxw-product .item.active,
  .mxw-product .item:hover {
    filter: grayscale(0);
    -moz-filter: grayscale(0);
    -ms-filter: grayscale(0);
    -o-filter: grayscale(0);
    filter: progid:DXImageTransform.Microsoft.BasicImage(grayscale=0);
    -webkit-filter: grayscale(0);
  }
  .mxw-product .item.active .text,
  .mxw-product .item:hover .text {
    visibility: visible;
  }
  .mxw-product .item .image {
    width: 100%;
  }
  .mxw-product .item .text {
    font-size: 12px;
    margin-top: 10px;
    color: #fff;
    line-height: 1.6;
    visibility: hidden;
  }
  @media screen and (min-width: 751px) {
    .mxw-product .item {
      width: 33%;
    }
    .mxw-product .item:nth-child(3n-1) {
      margin-left: 0.5%;
      margin-right: 0.5%;
    }
    .mxw-product .item:nth-child(3) ~ .item {
      margin-top: 5%;
    }
  }
  @media screen and (max-width: 1400px) {
    .mxw-product .item {
      width: 49%;
      margin: 0!important;
    }
    .mxw-product .item:nth-child(2n-1) {
      margin-right: 2%!important;
    }
    .mxw-product .item:nth-child(2) ~ .item {
      margin-top: 6%!important;
    }
  }
  @media screen and (max-width: 751px) {
    .mxw-product {
      max-width: 100%;
      margin-bottom: 70px;
      padding-left: 20px;
      padding-right: 20px;
    }
    .mxw-product .item {
      width: 48%;
    }
    .mxw-product .item:nth-child(2n-1) {
      margin-right: 4%!important;
    }
    .mxw-product .item:nth-child(2) ~ .item {
      margin-top: 4%!important;
    }
    .mxw-product .item-null {
      display: none;
    }

  .mxw-product .item .text {

    visibility: visible
}
  }
  /* ==================== 首页 - 产品列表 end ==================== */
  /* ==================== 通用 - 底部样式 start ==================== */
  @media screen and (max-width: 751px) {
    footer {
      padding-bottom: 30px;
      height: auto;
      line-height: inherit;
      display: flex;
      flex-flow: column;
      align-items: center;
      margin-top:0;
    }
    footer .code {
      margin-bottom: 15px;
      position: static;
      order: -2;
    }
  }
  /* ==================== 通用 - 底部样式 end ==================== */
  /* ==================== 内页 - 图片弹窗关闭按钮 start ==================== */
  .close {
    width: 30px;
    height: 30px;
    position: absolute;
    transform: rotate(45deg);
    top: -30px;
    right: 30px;
    z-index: 9;
    cursor: pointer;
  }
  .close:before,
  .close:after {
    content: "";
    display: block;
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
  }
  .close:before {
    width: 30px;
    height: 4px;
    background-color: #fff;
  }
  .close:after {
    width: 4px;
    height: 30px;
    background-color: #fff;
  }
  /* ==================== 内页 - 图片弹窗关闭按钮 end ==================== */
  /* ==================== 品牌楷模 start ==================== */
  .mxw-model {
    overflow: hidden;
    margin-bottom: 600px;
    font-size: 14px;
    margin-top: 250px;
    display: flex;
    align-items: stretch;
    flex-wrap: wrap;
    justify-content: space-between;
    position: relative;
    color: #fff;
  }
  .mxw-model:after {
    content: "";
    display: block;
    width: 1px;
    height: 100%;
    background-color: rgba(255, 255, 255, 0.2);
    position: absolute;
    top: 100px;
    right: 50%;
    transform: translateX(-50%);
  }
  .mxw-model .item {
    position: relative;
  }
  .mxw-model .item2 {
    padding-top: 400px;
  }
  .mxw-model .item3 {
    text-align: right;
    padding-top: 100px;
    font-size: 24px;
    letter-spacing: 4px;
    font-weight: 200;
  }
  .mxw-model .item4 {
    padding-top: 280px;
  }
  .mxw-model .item4 .text1 {
    font-size: 24px;
    line-height: 1.2;
    font-weight: 400;
  }
  .mxw-model .item4 .text2 {
    font-size: 12px;
    line-height: 2;
    text-align: justify;
    margin-top: 60px;
  }
  .mxw-model .item5 {
    padding-right: 20px;
    margin-top: 160px;
  }
  .mxw-model .item5 .text1 {
    font-size: 20px;
    margin-bottom: 50px;
    text-align: right;
  }
  .mxw-model .item5 .text2 {
    font-size: 12px;
    line-height: 1.8;
    margin-top: 20px;
    display: table;
    margin-left: auto;
    margin-right: 0;
  }
  .mxw-model .item5 img {
    display: block;
    margin-bottom: 5px;
  }
  .mxw-model .item5 .year {
    transform: rotate(90deg);
    position: absolute;
    top: 188px;
    right: -31%;
    font-size: 14px;
    font-weight: bold;
    color: #1d1d1d;
    background-color: #000;
    z-index: 9;
    padding-left: 20px;
    height: 30px;
    line-height: 30px;
    padding-right: 20px;
  }
  .mxw-model .item5 .year span:first-child:after {
    content: "";
    display: inline-block;
    width: 0;
    height: 0;
    border-top: 8px solid transparent;
    border-bottom: 8px solid transparent;
    border-left: 16px #1d1d1d solid;
    margin-left: 106px;
    margin-right: 50px;
  }
  .mxw-model .item6 {
    padding-left: 10px;
    padding-top: 360px;
  }
  .mxw-model .item6 .text2 {
    font-size: 12px;
    line-height: 1.8;
    margin-bottom: 20px;
  }
  .mxw-model .item6 .text2:last-child {
    margin-bottom: 0;
  }
  .mxw-model .item6 img {
    display: block;
    margin-bottom: 5px;
  }
  .mxw-model .item7 {
    margin-top: 380px;
    text-align: right;
  }
  .mxw-model .item7 .text1 {
    display: inline-block;
    margin-bottom: 25px;
    width: 100%;
    font-size: 14px;
  }
  .mxw-model .item7 .text2 {
    font-size: 12px;
    line-height: 1.8;
  }
  .mxw-model .item8 {
    margin-top: 150px;
  }
  .mxw-model .item9 {
    margin-top: 250px;
  }
  .mxw-model .item9 img {
    display: block;
    margin-right: 0;
    margin-left: auto;
  }
  .mxw-model .item10 {
    margin-top: 525px;
    font-size: 12px;
  }
  .mxw-model .item10 .text1 {
    font-size: 14px;
    line-height: 1.8;
    font-weight: bold;
  }
  .mxw-model .item10 .text2 {
    margin-top: 30px;
    margin-bottom: 40px;
  }
  .mxw-model .item10 .text3 {
    line-height: 2;
  }
  .mxw-model .item11 {
    text-align: right;
    margin-top: 280px;
  }
  .mxw-model .item11 .text1 {
    font-size: 14px;
    font-weight: bold;
  }
  .mxw-model .item11 .text2 {
    font-size: 12px;
    margin-top: 50px;
    margin-bottom: 70px;
  }
  .mxw-model .item11 .text3 {
    font-size: 12px;
    margin-bottom: 15px;
    line-height: 1.6;
  }
  .mxw-model .item11 .text4 {
    font-size: 12px;
    line-height: 1.6;
  }
  .mxw-model .item12 {
    margin-top: 210px;
  }
  @media screen and (min-width: 750px) {
    .mxw-model {
      width: 61%;
      margin-left: 67px;
    }
    .mxw-model:after {
      right: 58%;
    }
    .mxw-model .item:nth-child(2n-1) {
      width: 40%;
    }
    .mxw-model .item:nth-child(2n) {
      width: 55.8%;
    }
    .mxw-model .item5 .year {
      right: -46%;
    }
  }
  @media screen and (max-width: 1400px) {
    .mxw-model .item5 .year {
      right: -53%;
    }
  }
  @media screen and (max-width: 1280px) {
    .mxw-model .item5 .year {
      right: -65%;
    }
  }
  @media screen and (max-width: 750px) {
    .mxw-model {
      padding-left: 20px;
      padding-right: 20px;
      margin-bottom: 240px;
    }
    .mxw-model .item {
      width: 48%;
    }
    .mxw-model .item4 .text1 {
      font-size: 14px;
      font-weight: bold;
    }
    .mxw-model .item4 .text2 p {
      line-height: 1.6;
      display: inline;
    }
    .mxw-model .item5 .text1 {
      font-size: 14px;
    }
    .mxw-model .item5 .year {
      right: -92%;
    }
    .mxw-model .item7 .text2 p,
    .mxw-model .item11 .text3 p {
      display: inline;
    }
  }
  /* ==================== 品牌楷模 end ==================== */
  /* ==================== 新闻列表 start ==================== */
  /* .mxw-news .item:nth-child(3) ~ .item {
    margin-top: 0%;
  } */
  /* ==================== 新闻列表 end ==================== */
  /* ==================== 电子书 start ==================== */
  .mxw-catalog .item:nth-child(3) ~ .item {
    margin-top: 25px;
  }
  /* ==================== 电子书 end ==================== */
  /* ==================== 详情 start ==================== */
  .mxw-datail {
    color: #fff;
    width: 61%;
  }
  .mxw-datail video,.mxw-datail iframe {
    width: 100%;
    display: block;
  }
  .mxw-datail iframe {
  min-height: 500px;
  }
  @media screen and (max-width: 750px) {
    .mxw-datail {
      padding-left: 20px;
      padding-right: 20px;
      width:100%;
    }
    .mxw-datail iframe {
  min-height: 280px;
  }
  }
  /* ==================== 详情 end ==================== */
  /* ==================== 视频列表 start ==================== */
  .mxw-video .item:hover .image:after {
    transform: scale(1);
    visibility: visible;
    opacity: 1;
  }
  .mxw-video .item .image {
    display: block;
    position: relative;
  }
  .mxw-video .item .image:after {
    content: "";
    display: block;
    width: 100%;
    height: 100%;
    position: absolute;
    top: 0;
    left: 0;
    background: url(../images/play.png) no-repeat center;
    background-size: 30px 30px;
    z-index: 9;
    transition: all 0.4s;
    transform: scale(0.8);
    opacity: 0;
    visibility: hidden;
  }
  /* ==================== 视频列表 end ==================== */
  /* ==================== 分类列表 start ==================== */
  .mxw-category{
    position:sticky;
    top: 120px;
    width:18%;
  }
  .mxw-category  ul{
    display: flex;
    flex-flow: column;
    justify-content: center;
    align-items: flex-start;
    flex-shrink: 0;
  }
  .mxw-category ul > li {
    font-size: 12px;
    margin-bottom: 15px;
    line-height: 1.6;
    position: relative;
    width:80px;
    margin-left:auto;
  }
.mxw-category ul > li>a{display:block;width:100%;}
  .mxw-category ul > li.sub {
    font-weight: bold;
  }
  .mxw-category .sub-cate {
    display: none;
    padding-top: 10px;
  }
  .mxw-category .sub-cate > li {
    font-weight: 400;
    color: #666;
  }
  .mxw-category .sub-cate > li a {
    color: inherit;
  }
  .mxw-category .sub-cate > li.active{text-decoration: underline;text-decoration: none;}
  .mxw-category .sub-cate > li a:hover {
    color: #fff;
  }
  @media screen and (min-width: 750px) {

    .mxw-category.isback ul{
        margin-top:30px;
      }
  }
  @media screen and (max-width: 750px) {
    .mxw-category{width:100%;position:static;margin-top:20px;margin-bottom:20px;}
    .mxw-category ul {
      margin-left: 0;
      padding-left: 10px;
      padding-right: 10px;
      width: 100%;
      flex-flow: row wrap;
    }
    .mxw-category ul > li {
      flex-grow: 1;
      text-align: center;
      padding-left: 10px;
      padding-right: 10px;
    }
    .mxw-category .sub-cate {
      position: absolute;
      top: 100%;
      left: 50%;
      transform: translate(-50%,20px);
      background:#000;border:1px solid #565656;
    }
.mxw-category .sub-cate > li{width:100%;}
.mxw-category .sub-cate > li>a{color:#fff;}
.mxw-category .sub-cate > li>a:hover{color:#fff!important;}
  }
  /* ==================== 分类列表 end ==================== */
  /* ==================== 底部二维码样式 start ==================== */
  footer .code{
    display:flex;align-items:center;bottom:30px;
    line-height:0;font-size:0;;
  }
  footer .code .qr{position:relative;}
  footer .code .qr:hover .big-img{opacity:1;visibility:visible;}
  footer .code .qr01{margin-right:20px;}
  footer .code .qr-name{
    font-size: 12px;
    text-align: center;
    line-height: 1.2;
    margin-top: 10px;
  }
  footer .code .qr .big-img{
    position: absolute;
    bottom: 120%;
    left: 50%;
    font-size: 0;
    line-height: 0;
    transform:translateX(-50%);
    width:140px;
    transition:all .4s;
    opacity:0;
    visibility:hidden;
  }
  footer .code .qr .big-img img{width:100%;}
  @media screen and (min-width: 751px) {
      
  }
  @media screen and (max-width: 751px) {
      
  }
  /* ==================== 底部二维码样式 end ==================== */
  
/* ==================== 首页 - 背景视频 start ==================== */
.video-body{
    position:relative;
}
.video-body .bg-video{position:fixed;top:0;left:0;width:100%;height:100vh;z-index:1!important;}
.video-body .bg-video video{display:block;width:100%;height:100%;object-fit: cover;}
@media screen and (min-width: 751px) {

  .video-body header,
  .video-body main,
  .video-body footer{
      z-index:9;position:relative;
  }
}
@media screen and (max-width: 751px) {
  header .top,
  header{background-color:#000;}
  .video-body .bg-video{display:none;}
  header .mob-home .mob-ul{height:100vh;background-color: #000;}

}
/* ==================== 首页 - 背景视频 end ==================== */
/* ==================== 通用搜索 start ==================== */
.mxw-search-box{
  width:80px;margin-right:0;margin-left:auto;
}
.mxw-search {
  width: 14px;
  height: 14px;
  flex-shrink: 0;
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  margin-bottom:20px;
}
.mxw-search .btn{width:100%;cursor: pointer;}
.mxw-search.active {
  overflow: visible;
}
.mxw-search.active form {
  opacity: 1;
  visibility: visible;
}
.mxw-search form {
  font-size: 0;
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  right: 30px;
  z-index: 3;
  width: 200px;
  transition: all 0.4s;
  opacity: 0;
  visibility: hidden;
  height: 30px;
  line-height: 30px;
}
.mxw-search form input {
  background: none;
  border:1px solid #fff;
  padding: 4px 10px;
  outline: none;
  font-size: 12px;
  width: 100%;
  height: 100%;
  color:#fff;
}
.mxw-search form input::-webkit-input-placeholder { /* WebKit browsers */
  color:#fff;
}
.mxw-search form input:-moz-placeholder { /* Mozilla Firefox 4 to 18 */
  color:#fff;
}
.mxw-search form input::-moz-placeholder { /* Mozilla Firefox 19+ */
  color:#fff;
}
.mxw-search form input:-ms-input-placeholder { /* Internet Explorer 10+ */
  color:#fff;
}
.mxw-search form button {
  position: relative;
  width: 50px;
  height: 100%;
  background: #e67817;
  cursor: pointer;
}
.mxw-search form button:before {
  content: "";
  display: block;
  width: 0;
  height: 0;
  border-top: 0;
  border-left: 4px solid transparent;
  border-right: 4px solid transparent;
  border-bottom: 6px solid #e67817;
  position: absolute;
  top: -6px;
  left: 50%;
  transform: translateX(-50%);
}
.mxw-search form button img {
  width: 16px;
}

.mxw-search-box.back-bottom{margin-top:30px;}
@media screen and (min-width: 751px) {
  .mxw-search-box{display:none;}
}
@media screen and (max-width: 751px) {
  .mxw-search-box{width:100%;padding:0 20px;}
  .mxw-search{width:100%;height:30px;;}
  .mxw-search form{opacity:1;visibility:visible;transform:inherit;position:static;min-width:0;flex-grow:1;}
  .mxw-search .btn{width:20px;height:20px;margin-left:20px;flex-shrink:0;}
}
/* ==================== 通用搜索 end ==================== */
/* ==================== 通用 - 留言板 start ==================== */
.mxw-message{
  margin-top:120px;
  margin-left:auto;margin-right:auto;
}
.mxw-message .title{font-size: 16px;font-weight: bold;line-height:1.2;padding-bottom:20px;border-bottom:1px solid #454545;margin-bottom:20px;text-align:center;color:#454545;}
.mxw-message .top{display:flex;align-items:center;}
.mxw-message .item2{display:flex;align-items: center;width:32%;}
.mxw-message .item2:nth-child(3n-1){margin-left:2%;margin-right:2%;}
.mxw-message .item2.row-start{align-items: flex-start;}
.mxw-message .item2 label{display: block;font-size: 14px;line-height: 1.2;width:80px;letter-spacing: 2px;flex-shrink: 0;margin-right: 10px;}
.mxw-message .item2 label i{display:inline-block;width:30px;}
.mxw-message textarea,
.mxw-message .item2 input{border: 0;border-radius: 0px;outline:none;flex-grow:1;color:#fff;font-size:14px;min-width:0;font-family: "Microsoft YaHei", "微软雅黑", "Microsoft JhengHei", "华文细黑", "STHeiti", "MingLiu";border-bottom:1px solid #454545;background:none;}

.mxw-message textarea::-webkit-input-placeholder,
.mxw-message input::-webkit-input-placeholder { /* WebKit browsers */
  color:#454545;
}
.mxw-message textarea:-moz-placeholder,
.mxw-message input:-moz-placeholder { /* Mozilla Firefox 4 to 18 */
  color:#454545;
}
.mxw-message textarea::-moz-placeholder,
.mxw-message input::-moz-placeholder { /* Mozilla Firefox 19+ */
  color:#454545;
}
.mxw-message textarea:-ms-input-placeholder,
.mxw-message input:-ms-input-placeholder { /* Internet Explorer 10+ */
  color:#454545;
}
.mxw-message textarea{
  resize: none;
  height: 36px;
  width: 100%;
  line-height: 34px;
  margin-top: 50px;
}
.mxw-message .item2 input{height: 30px;line-height:30px;padding-left:5px;padding-right:5px;}
.mxw-message button{
  width: 70px;
  background:none;
  border:1px solid #454545;color:#454545;
  outline: none;
  height: 30px;
  line-height: 30px;
  font-size: 13px;
  margin-left: auto;
  margin-right: 0;
  display: block;
  cursor: pointer;
  margin-top:30px;
}
@media screen and (max-width: 751px) {
  .mxw-message{max-width:100%;margin-top:0;}
  .mxw-message .title{margin-bottom:0px;padding-bottom:10px;}
  .mxw-message .item2{flex-wrap: wrap;margin-bottom:15px;}
  .mxw-message .item2 label{width:100%;margin-bottom: 5px;margin-right:0;}
  .mxw-message .item2 label i{width:0;}
  .mxw-message button{width:100%;}
  .mxw-message textarea{width:100%;margin-top:20px;}
  .mxw-message .top{flex-wrap:wrap;}
  .mxw-message .item2{width:100%;margin:0!important;;}
  .mxw-message input{margin-top:20px;}
}
/* ==================== 通用 - 留言板 end ==================== */
/* ==================== 通用 - 头部搜索 start ==================== */
.mxw-head-search{
  max-width: 61%;
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: flex-end;
  position:relative;z-index:9;
  padding-right:2px;
}
.mxw-head-search form{display:flex;align-items:stretch;border:1px solid #fff;height:30px;line-height:30px;width:200px;padding-left:10px;}
.mxw-head-search form input{background:none;border:0;min-width:0;flex-grow:1;padding-left:10px;padding-right:10px;}

.mxw-head-search form input::-webkit-input-placeholder { /* WebKit browsers */
  color:#fff;
}
.mxw-head-search form input:-moz-placeholder { /* Mozilla Firefox 4 to 18 */
  color:#fff;
}
.mxw-head-search form input::-moz-placeholder { /* Mozilla Firefox 19+ */
  color:#fff;
}
.mxw-head-search form input:-ms-input-placeholder { /* Internet Explorer 10+ */
  color:#fff;
}
.mxw-head-search form button{width:14px;flex-shrink:0;background:none;border:0;outline:none;order:-2;transform:rotateY(180deg);}
.mxw-head-search form button img{}
@media screen and (min-width: 751px) {
    .mxw-head-search{

    }
}
@media screen and (max-width: 751px) {
    .mxw-head-search{
      display:none;
    }
}
/* ==================== 通用 - 头部搜索 end ==================== */