.intro {
  width: 66vw;
  text-align: center;
  margin: auto;
  margin-bottom: 0.4rem;
  min-width: 300px !important;
}
.introimg {
  width: 66vw;
  margin: 0 auto;
  display: block;
  min-width: 300px !important;
  margin-bottom: 1rem;
}
.format {
  background-color: #f9f9f9;
  padding: 1.5rem 6vw;
  h2 {
    text-align: center;
    font-size: 1.2rem;
    margin-bottom: 1.2rem;
  }
  div {
    background-color: @primary-color;
    padding: 12px;
    color: #fff;
    width: 88px;
    display: flex;
    justify-content: center;
    align-content: center;
    margin-bottom: 0.4rem;
  }
}
.ibo {
  width: calc(100% - 4rem);
  display: flex;
  justify-content: space-around;
  flex-wrap: wrap;
  margin: 0 auto;
}

.column {
  column-span: all !important;
}

@media (min-width: 400px) {
  .column {
    column-count: 1; // two columns on larger phones
    column-gap: 12px;
  }

  .rt {
    width: 0px;
    overflow: hidden;
    border-left: #ddd solid 1px;
  }
}

@media (min-width: 768px) {
  .column {
    column-count: 2; // two columns on larger phones
    column-gap: 12px;
  }

  .rt {
    width: 140px;
    border-left: #ddd solid 1px;
  }
}

@media (min-width: 992px) {
  .column {
    column-count: 3; // three columns on...you get it
    column-gap: 12px;
  }
}

@media (min-width: 1200px) {
  .column {
    column-count: 4; // three columns on...you get it
    column-gap: 12px;
  }
}

@media (min-width: 1660px) {
  .column {
    column-count: 6; // three columns on...you get it
    column-gap: 12px;
  }
}
.item {
  display: inline-block;
  box-sizing: border-box;
  width: 100%;
  padding-bottom: 12px;
  overflow: hidden;
  float: left;

  img {
    width: 100%;
  }
  .title {
    display: flex;
    justify-content: center;
    align-items: center;
    width: 100%;
    padding: 8px 12px 0 12px;
    text-align: center;
  }
}

.join {
  display: flex;
  justify-content: center;
  padding-left: 6vw;
  h2 {
    font-size: 1rem;
    text-indent: 0.5rem;
  }
  p {
    font-size: 0.6rem;
    position: relative;
    text-indent: 0.6rem;
    &::before {
      position: absolute;
      left: 0;
      top: 0.35rem;
      width: 8px;
      height: 8px;
      background-color: #3d67ff;
      border-radius: 8px;
      content: '';
    }
  }
}
.joinus {
  position: absolute;
  bottom: 0;
  padding-left: 6vw;
  font-size: 2rem;
  line-height: 3rem;
  color: #fff;
}