/*product_list*/
.product_list {
    position: relative;
    padding: 20px 0 30px;
  }
  
  .product_list li {
    margin-top: 15px;
    width: 23.8%;
    float: left;
    cursor: pointer;
    margin-left: 1.6%;
  }
  
  .product_list li:nth-child(4n+1) {
    margin-left: 0;
  }
  
  .product_list li .p_img {
    width: 100%;
    padding-bottom: 66.67%;
    position: relative;
    overflow: hidden;
    border: 2px solid #efefef;
  }
  
  .product_list li .p_img img {
    -o-object-fit: cover;
       object-fit: cover;
    width: 100%;
    height: 100%;
    display: block;
    position: absolute;
    left: 0;
    top: 0;
  }
  
  .product_list li .p_img .videoicon {
    /*background: url(v_icon.png) no-repeat center center rgba(14, 104, 176, 0.7);*/
    position: absolute;
    left: 0;
    top: 0;
    -moz-background-size: 60px auto;
         background-size: 60px auto;
    display: block;
    width: 100%;
    height: 100%;
  }
  
  .product_list li p {
    margin: 0;
    line-height: 43px;
    color: #666;
    text-align: center;
    background: #F1F1F1;
    padding: 0 10px;
    overflow: hidden;
    -o-text-overflow: ellipsis;
       text-overflow: ellipsis;
    white-space: nowrap;
  }
  
  .product_list li p a {
    color: #666;
  }
  
  @media screen and (max-width: 1023px) {
    .product_list li {
      width: 32%;
      margin-left: 2%;
    }
    .product_list li:nth-child(4n+1) {
      margin-left: 2%;
    }
    .product_list li:nth-child(3n+1) {
      margin-left: 0;
    }
  }
  @media screen and (max-width: 667px) {
    .product_list li {
      width: 49%;
      margin-left: 2%;
    }
    .product_list li:nth-child(4n+1) {
      margin-left: 2%;
    }
    .product_list li:nth-child(3n+1) {
      margin-left: 2%;
    }
    .product_list li:nth-child(odd) {
      margin-left: 0;
    }
  }
  @media screen and (max-width: 499px) {
    .product_list li {
      width: 100%;
      margin-left: 0;
    }
    .product_list li:nth-child(4n+1) {
      margin-left: 0;
    }
    .product_list li:nth-child(3n+1) {
      margin-left: 0;
    }
  }

  /* 视频附加 */
  .video-list li {
    position: relative;
  }
  
  .video-list li .bottom {
    position: relative;
    position: absolute;
    width: 100%;
    bottom: 0;
    left: 0;
    color: #fff;
    background-color: rgba(0, 0, 0, 0.3);
    height: 100%;
    display: -webkit-box;
    display: -webkit-flex;
    display: -moz-box;
    display: -ms-flexbox;
    display: flex;
    -webkit-box-orient: vertical;
    -webkit-box-direction: normal;
    -webkit-flex-flow: column;
       -moz-box-orient: vertical;
       -moz-box-direction: normal;
        -ms-flex-flow: column;
            flex-flow: column;
    -webkit-box-pack: center;
    -webkit-justify-content: center;
       -moz-box-pack: center;
        -ms-flex-pack: center;
            justify-content: center;
    -webkit-box-align: center;
    -webkit-align-items: center;
       -moz-box-align: center;
        -ms-flex-align: center;
            align-items: center;
  }
  
  .video-list li .bottom p {
    color: #fff;
    background-color: transparent;
  }
  
  .video-list li .bottom .btn {
    border: 1px solid #fff;
    padding: 0.429rem 1rem;
    margin-top: 10px;
  }
  
  .video-list li img {
    -webkit-transition: all 0.5s;
    -o-transition: all 0.5s;
    -moz-transition: all 0.5s;
    transition: all 0.5s;
  }
  
  .video-list li:hover img {
    -webkit-transform: scale(1.1);
       -moz-transform: scale(1.1);
        -ms-transform: scale(1.1);
         -o-transform: scale(1.1);
            transform: scale(1.1);
  }
  /* 视频附加结束 */