.page-case .banner .title {
  padding-top: 1.90rem;
  font-size: .48rem;
  font-weight: bold;
  color: #FFFFFF; }

.page-case .banner .title2 {
  padding-top: .58rem;
  font-size: .30rem;
  font-weight: bold;
  color: #FFFFFF; }

.page-case .introduce .title {
  padding: .80rem 0 1.00rem;
  font-size: .30rem;
  font-weight: 400;
  color: #181818;
  text-align: center; }

.page-case .introduce .main {
  position: relative;
  height: 10.00rem; }
  .page-case .introduce .main .tv {
    position: absolute;
    background-repeat: no-repeat;
    background-size: 100% 100%;
    background-position: center center; }
    .page-case .introduce .main .tv .mask {
      position: absolute;
      width: 100%;
      height: 74.5%;
      background-color: #ff5809;
      opacity: 0;
      transition: opacity .2s;
      display: flex;
      justify-content: center;
      align-items: center; }
      .page-case .introduce .main .tv .mask .box {
        display: flex;
        flex-direction: column;
        justify-content: space-between;
        align-items: center; }
        .page-case .introduce .main .tv .mask .box .brand {
          width: 100%;
          height: auto; }
    .page-case .introduce .main .tv:hover .mask {
      opacity: 1; }
  .page-case .introduce .main .big {
    width: 6.25rem;
    height: 5.00rem;
    left: .84rem; }
    .page-case .introduce .main .big .box {
      width: 1.70rem;
      height: 1.20rem; }
      .page-case .introduce .main .big .box .icon {
        width: .48rem;
        height: .48rem; }
  .page-case .introduce .main .small {
    width: 2.86rem;
    height: 2.31rem; }
    .page-case .introduce .main .small .box {
      width: 1.20rem;
      height: .65rem; }
      .page-case .introduce .main .small .box .icon {
        width: .24rem;
        height: .24rem; }
    .page-case .introduce .main .small.s1 {
      right: 0;
      top: 0; }
    .page-case .introduce .main .small.s2 {
      right: 0;
      top: 2.60rem; }
    .page-case .introduce .main .small.s3 {
      left: .41rem;
      top: 5.77rem; }