/* pc端，屏幕在992以上的样式设置： */
@media screen and (min-width: 992px) {
  .section-content .zcdown {
    margin-bottom: 0px;
  }

  .features1-content-space {
    height: 710px;
    display: flex;
    align-items: center;
  }

  .box {
    width: 100%;
    display: flex;
    align-items: stretch;
  }

  .box-left {
    box-sizing: border-box;
    padding-right: 20px;
    width: 50%;
  }

  .box-right {
    width: 50%;
    height: 600px;
  }

  .box-right video {
    width: 100%;
    height: 100%;
  }

  #features-video {
    width: 100%;
    height: 100%;
  }

  /* ============video html */
  .container-fluid {
    width: 80%;
    margin: 0 auto;
  }

  .video-header {
    display: flex;
    align-items: center;
    margin-bottom: 40px;
  }

  .video-header-logo {
    margin-right: 20px;
    width: 100px;
  }

  .video-header-title {
    font-size: 20px;
    font-weight: bold;
  }
}


/* =========================================================================================================== */
/* 移动端下，屏幕在992以下的样式设置: */
@media screen and (max-width: 992px) {
  .logo {
    width: 100px;
  }

  .logo img {
    width: 100% !important;
    height: 60px !important;
  }

  .banner-btn {
    margin-top: 28px;
  }

  .overview-content {
    margin-bottom: 28px;
  }

  .section-content .zcdown {
    margin-bottom: 20px;
  }

  .box {
    width: 100%;
  }

  .box-left {
    box-sizing: border-box;
    padding-bottom: 20px;
    width: 95%;
    margin: 0 auto;
  }

  .box-right {
    width: 95%;
    height: 400px;
    margin: 0 auto;
  }

  .box-right video {
    width: 100%;
    height: 400px;
  }

  #features-video {
    width: 100%;
    height: 400px;
  }

  .features2-content {
    text-align: center;
  }

  .section-content {
    text-align: center;
  }

  /* ============video html */
  .container-fluid {
    width: 99%;
    margin: 0 auto;
  }

  .video-header {
    display: flex;
    align-items: center;
    margin-bottom: 40px;
  }

  .video-header-logo {
    margin-right: 10px;
    width: 50px;
  }

  .video-header-title {
    font-size: 14px;
  }
}