* {
  padding: 0;
}

body {
  font-family: Arial, Helvetica Neue, Helvetica, sans-serif;
  margin: 0;
  padding: 0;
  list-style: none;
  background-color: #FBFBFB;
}

ul {
  list-style: none;
  /* margin: auto; */
}

a {
  text-decoration: none;
  color: #000;
}

a:hover {
  text-decoration: none;
  color: #000;
}



header {
  background-color: #FBFBFB;
  width: 100%;
  height: 90px;
  position: fixed;
  z-index: 100;
  -webkit-box-shadow: 0px 1px #868686;
  box-shadow: 0px 1px #868686;
  z-index: 150000;
  top: 0;
}

.header-row {
  width: 100%;
  height: 90px;
}

.nav-container {
  margin: 0 auto;
  margin-top: 20px;
}



.logo {}

.logo img {
  height: 60px;
}

.nav-right {
  display: flex;
  justify-content: flex-end;
  height: 60px;
  align-items: flex-end;

}

.nav-icon {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  align-content: space-around;
  padding: 5px;
  position: relative;
  top: 3px;
}

.nav-icon .bran {
  height: 2px;
  width: 25px;
  background-color: #000;
}

.section-w {
  margin-top: 10px;
}


.nav-product {
  width: 100px;
  height: 50px;
  display: flex;
  justify-content: flex-end;
  align-content: flex-end;
  align-items: flex-end;
  transition: width 0.5s;
}



.nav-product .product_type{

  padding-right: 15px;
  padding-left: 8px;
}

.product_type a {
  font-size: 14px;
  color: #454545;
  white-space: nowrap;
}

.product_type_ul .type_li{
  padding-left: 8px;
  padding-right: 8px;

}
.product_type_ul .type_li a{
  font-size: 14px;
  color: #454545;
  white-space: nowrap;
}

.col-md-product {
  padding: 5px;
}

.row-product {
  margin-right: -8px;
  margin-left: -8px;
}




.product-mask .circle {
  width: 24px;
  height: 24px;
  background-color: #fff;
  border-radius: 50%;
  display: flex;
  justify-content: center;
  align-content: center;
  align-items: center;
  margin: 0 auto;
  opacity: 0.8;
}


.circle-h {
  height: 2px;
  width: 12px;
  background-color: #000;
}

.circle-s {
  position: absolute;
  height: 2px;
  width: 12px;
  background-color: #000;
  transform: rotate(90deg);
}

/* 产品详情页 */
.productSwiper {
  background-color: #fff;

}

.productSwiperBottom {
  height: 120px;
}

.product-slide {
  padding: 5px;
  box-sizing: border-box;
  box-shadow: 0px 10px 5px -10px #ccc;
}

.product-slide .img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.authorCover {
  position: relative;
  overflow: hidden;
}

.authorCover .authorImg {
  width: 100%;
}
.imgMask{
  width: 30px;
  height: 30px;
  background-color: #fff;
  transform: rotate(45deg);
  position: absolute;
  bottom: -17px;
  left: 50%;
  margin-left: -15px;
  z-index: 100;
}
.productTitle {
  border-bottom: 1px solid #333;
  padding-top: 5px;
  padding-bottom: 5px;
  position: relative;
  z-index: 1000;
}

.productTitle h3 {
  color: #4B4B4B;
  font-size: 1.17em;
  font-weight: bold;
  margin-top: 5px;
  margin-bottom: 5px;
}

.productAuthor{
  white-space:pre;
  padding-top: 8px;
  padding-bottom: 15px;
    color: #333;
    font-size: 15px;
    font-family: "Microsoft YaHei", "STXihei", Arial, Helvetica, sans-serif;
    line-height: 20px;

}

.productDescription{
  white-space:pre-line;
  background-color: #DBDBDB;
  margin-top: 15px;
  padding: 10px;
  box-sizing: border-box;
 color:#333;
 font-size: 15px;
 font-weight: 500;
}

.download{
  display: block;
  position: relative;
  height: 35px;
  text-align: center;
  line-height: 35px;
  font-size: 20px;
  color: #FFFFFF;
  background-color: #414141;
  text-decoration: none;
  margin-top: 15px;
}
.download a{
  color: #FFFFFF;
}
/* 尾部 */
footer {
  margin-top: 30px;
  border-top: 1px solid #868686;
}


.partner-row {
  display: flex;
  flex-wrap: wrap;

}

.partner-title {
  font-size: 12px;
  margin-top: 10px;
  margin-bottom: 10px;
}

.partner {
  height: 40px;
  margin-right: 15px;
}

.partner img {
  height: 40px;
}

.copyright {
  display: flex;
  justify-content: flex-end;
  align-items: center;
  flex-wrap: wrap;
  margin-top: 30px;
}

.copyright p {
  margin-left: 15px;
  font-size: 12px;
  color: #353535;
}

/* //单页 */
.pageBox{
  width: 100%;
  position: absolute;
  top: 91px;
  z-index: 10000;
  display: none;
}
.page-container{
  background-color: #ccc;
  padding-top: 30px;

  padding-bottom: 30px;
}

.closeBox{
  display: flex;
  justify-content: center;
  padding-bottom: 15px;
}
.close-icon{
  width: 25px;
  height: 25px;
  background-color: #333;
  border-radius: 50%;
  position: relative;
  display: flex;
  justify-content: center;
  align-items: center;
  align-content: center;

}
.close-icon .iconl{
  height: 2px;
  width: 15px;
  background-color: #fff;
  transform: rotate(45deg);
  position: absolute;
}
.close-icon .iconr{
  height: 2px;
  width: 15px;
  background-color: #fff;
  transform: rotate(-45deg);
  position: absolute;
}

.abouthtml{
  background-color: #fff;
  padding:30px 15px;
  box-sizing: border-box;
}
.contactBox{
  background-color: #fff;
  padding: 15px;
  margin-right: 0;
}
.subTitle{
  color: #323232;
  font-size: 18px;
  font-weight: 600;
  border-bottom: 1px solid #666;
  padding-bottom: 5px;
  padding-top: 15px;
}
.formBox{
  padding-bottom: 15px;
  border-bottom: 1px solid #333;
}
.formBox form input,.formBox form textarea{
  margin-top: 15px;
  width: 100%;
  height: 35px;
}
.btn-submit{
  color: #FFFFFF;
  background-color: #434343;
  width: 100%;
  margin-top: 15px;
}
.hint{
  padding-top: 15px;
  padding-bottom: 15px;
  font-size: 12px;
}

.header-nav{
  display: none;
  background-color: #1b6d85;
  width: 100%;
  box-sizing: border-box;
  background-color: #fffffff8;
  position: fixed;
  top: 90px;
  left: 0;
  z-index: 10000;
}

.nav-box{
  min-height: 250px;
  display: flex;
  justify-content: center;
  align-items: center;
  align-content: center;
  flex-wrap: wrap;
}
.nav-item{
  padding: 15px 30px;
}
@media (min-width: 992px) {


  .container {
    width: 970px;
  }



  /* 首页产品 */
  .product-items {
    position: relative;
    overflow: hidden;
  }

  .product-items .product-cover {
    height: 190px;

  }

  .product-items .product-cover img {
    width: 100%;
    height: 100%;
    object-fit: cover;
  }

  .product-items .product-mask {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 0%;
    background-color: rgba(0, 0, 0, 0.5);
    color: #FFFFFF;
    overflow: hidden;
    transition: height 0.5s;
  }

  .product-items .product-mask .mask {
    width: 100%;
    height: 100%;
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    align-content: center;
    box-sizing: border-box;
    overflow: hidden;
    text-decoration: none;
    padding: 15px;
    box-sizing: border-box;

  }

  .product-items:hover .product-mask {
    height: 100%;
    display: flex;
  }

  .product-icon {
    width: 100%;
  }

  .product-mask .title {
    text-align: center;
    font-size: 18px;
    color: #fff;
  }

  .product-mask .title h4 {
    text-align: center;
    font-size: 18px;
    color: #fff;
  }

  .authorInfo{
    margin-right: 0;
  }

  /* 尾部 */

}

@media (min-width: 768px) {



  /* .container {
    width: 970px;
  } */

  .product-items {
    position: relative;
    overflow: hidden;
  }

  .product-items .product-cover {
    height: 190px;

  }

  .product-items .product-cover img {
    width: 100%;
    height: 100%;
    object-fit: cover;
  }

  .product-items .product-mask {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 0%;
    background-color: rgba(0, 0, 0, 0.5);
    color: #FFFFFF;
    overflow: hidden;
    transition: height 0.5s;
  }

  .product-items .product-mask .mask {
    width: 100%;
    height: 100%;
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    align-content: center;
    box-sizing: border-box;
    overflow: hidden;
    text-decoration: none;
    padding: 15px;
    box-sizing: border-box;

  }

  .product-items:hover .product-mask {
    height: 100%;
    display: flex;
  }

  .product-icon {
    width: 100%;
  }

  .product-mask .title {
    text-align: center;
    font-size: 18px;
    color: #fff;
  }

  .product-mask .title h4 {
    text-align: center;
    font-size: 18px;
    color: #fff;

  }
  .authorInfo{
    margin-right: 0;
  }

}

@media (max-width: 768px) {



  .product-items {
    position: relative;
    overflow: hidden;
  }

  .product-items .product-cover {
    height: 180px;

  }

  .product-items .product-cover img {
    width: 100%;
    height: 100%;
    object-fit: cover;
  }

  .product-items .product-mask {
    width: 100%;
    height: 40px;
    background-color: rgba(0, 0, 0, 0.8);
    color: #FFFFFF;
    overflow: hidden;
  }

  .product-icon {
    display: none;
  }

  .product-mask .title {
    text-align: center;
    font-size: 18px;
    color: #fff;
  }

  .product-mask .title h4 {
    text-align: center;
    font-size: 18px;
    color: #fff;

  }

  .productSwiperBottom {
    height: 80px;
  }

  .product-info{
    padding-left: 15px;
  }

  .authorInfo{
    margin-right: 0;
    margin-left: 0;
    margin-top: 30px;
  }
  .copyright {
    display: flex;
    justify-content: center;
    align-items: center;
    flex-wrap: wrap;
    margin-top: 30px;
  }
  .contactBox{
    margin-right: 0;
    margin-left: 0;
  }

}