.main{
    width: 28rem;
    margin: auto;
    text-align: center;
}
@media screen and (max-width: 992px) {
    .main{
        margin-top: 1rem;
        width: 100%;
    }
    .block{
        padding: 0 1rem;
    }
    img{
        width: 100%;
    }
    .block4 img{
        width: 50%;

    }
}
.block {
    box-sizing: border-box;
  }
  .block .FF7425 {
    color: #FF7425;
  }
  .block .title {
    font-size: 0.8rem;
    margin: 0.5rem 0;
    font-weight: 700;
  }
  .block .subtitle {
    font-size: 0.5rem;
  }
  .block .text {
    width: 90%;
    margin: 0.5rem auto;
    font-size: 0.45rem;
    text-align: left;
    line-height: 0.8rem;
    color: #696969;
  }
  .block .video {
    width: 80%;
  }
  .block .img {
    /* text-align: center; */
    width: 80%;
    margin: auto;
  }
  .block3 .img {
    width: 90%;
    display: flex;
    flex-wrap: wrap;
    justify-content: space-around;
  }
  .block3 .img .group {
    margin: 0.3rem 0;
    font-size: 0.4rem;
  }
  .block3 .img .group img {
    width: 90%;
  }
  .block4 .img {
    width: 90%;
    display: flex;
    justify-content: space-around;
    flex-wrap: wrap;
  }