.about-banner-section {
  background: url(../img/case.png) no-repeat 50% 0;
  height: 550px;
  .layout-row {
    width: 1140px;
    padding-top: 390px;
    color: #fff;
    h2 {
      font: 48px/50px 'LiHei Pro';
    }
    p {
      font: 32px/34px ' ';
      opacity: 0.7;
      margin-top: 20px;
    }
  }
}