@media (min-width: 1260px) {
  .page-nav-list ul li .skicon {
    display: none;
  }
  .page-nav-list ul li:nth-child(1) {
    border-right: none;
  }
  .page-nav-list {
    padding: 0;
  }
  .page-nav-list ul li {
    width: auto;
  }
  .page-nav-list ul li a {
    font-size: 18px;
  }
  .page-nav-list ul li.active a {
    border: none;
  }
  .product-detail .page-nav-title {
    display: block;
  }
  .product-detail .page-nav {
    padding: 20px 10px;
  }
  .product-detail .page-nav-list ul li a {
    display: block;
    line-height: 1.42857143;
  }
  .product-detail .page-nav-list ul li:nth-child(3) {
    padding: 0;
  }
  .product-detail .page-nav-list {
    float: right;
  }

  .product-detail-wrapper {
    padding: 0 10px;
    margin-top: 40px;
  }

  .product-detail .page-nav-list ul li:nth-child(2) {
    padding-left: 0;
  }

  .product-detail-cover {
    width: 200px;
    float: left;
    margin-right: 100px;
    padding-top: 0;
  }
  .product-detail-content {
    overflow: hidden;
  }
  .product-detail-cover img {
    width: 100%;
  }
  .product-item-dl-wrapper {
    border: none;
  }
  .product-detail-title {
    font-size: 26px;
    border-bottom: 1px dashed #ccc;
    padding-bottom: 20px;
  }
  .product-detail-title::after {
    bottom: 15px;
  }
  .product-detail-section strong {
    font-size: 20px;
  }
  .product-detail-section table {
    width: 80%;
  }

  .product-detail-content .lg-no {
    display: none;
  }

  .page-nav-list ul li:nth-child(1), .page-nav-list ul li:nth-child(2){
      border: none;
  }
  .product-detail .page-nav-list ul li:nth-child(2){
    padding-left: 12px;
    padding-right: 20px;
  }
}