.intro-wrap {
  width: 100%;
  overflow: hidden; }
  .intro-wrap .intro-list {
    width: 1144px; }
    .intro-wrap .intro-list .intro-item {
      width: 462px;
      height: 328px;
      float: left;
      margin: 20px 10px 40px 20px; }
      .intro-wrap .intro-list .intro-item:hover {
        box-shadow: 0 0 20px rgba(0, 0, 0, 0.2); }
        .intro-wrap .intro-list .intro-item:hover .text-wrap {
          background: #d3ad6f;
          color: #fff; }
        .intro-wrap .intro-list .intro-item:hover .img-wrap .cover {
          display: block; }
      .intro-wrap .intro-list .intro-item .img-wrap {
        width: 100%;
        height: 260px;
        overflow: hidden;
        position: relative;
        text-align: center; }
        .intro-wrap .intro-list .intro-item .img-wrap img {
          width: 100%;
          height: auto;
          vertical-align: middle; }
        .intro-wrap .intro-list .intro-item .img-wrap .cover {
          width: 100%;
          height: 100%;
          position: absolute;
          top: 0;
          left: 0;
          background-color: rgba(0, 0, 0, 0.5);
          text-align: center;
          line-height: 260px;
          display: none; }
          .intro-wrap .intro-list .intro-item .img-wrap .cover img {
            width: 45px;
            height: auto;
            vertical-align: middle; }
      .intro-wrap .intro-list .intro-item .text-wrap {
        width: 100%;
        height: 68px;
        line-height: 68px;
        text-align: center;
        background: #f3f3f3;
        font-size: 16px;
        color: #666666;
        Transform: all 1s; }