@c1: #3b52f6;
.item-wrap(@num,@between,@mb) {
  display: flex;
  flex-wrap: wrap;
  .item {
    width: calc((100% - (@num - 1) * @between) / @num);
    margin-right: @between;
    margin-bottom: @mb;
    &:nth-of-type(@{num}n) {
      margin-right: 0;
    }
  }
}
.dot {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.dots(@num) {
  overflow: hidden;
  text-overflow: ellipsis;
  display: -webkit-box;
  -webkit-line-clamp: @num; //行数
  -webkit-box-orient: vertical;
}
.setBetween {
  display: flex;
  justify-content: space-between;
}
.setRowCenter {
  display: flex;
  justify-content: center;
}
.setColumnCenter {
  display: flex;
  align-items: center;
}
.setCenter {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
}
.ra {
  border-radius: 0.2rem;
  overflow: hidden;
}
.bs {
  box-shadow: 0 0 0.5rem #ebebeb;
}
.box-shadow {
  box-shadow: 0rem 0.3rem 0.5rem 0rem rgba(36, 65, 116, 0.1);
}
.tit-line(@fs,@pb,@mb,@width,@height,@color) {
  font-size: @fs;
  padding-bottom: @pb;
  margin-bottom: @mb;
  position: relative;
  &::after {
    content: "";
    position: absolute;
    bottom: 0;
    left: 0;
    width: @width;
    border-bottom: @height solid @color;
  }
}
.tit-line-center(@fs,@pb,@mb,@width,@height,@color) {
  font-size: @fs;
  padding-bottom: @pb;
  margin-bottom: @mb;
  position: relative;
  &::after {
    content: "";
    position: absolute;
    bottom: 0;
    left: 50%;
    width: @width;
    border-bottom: @height solid @color;
    transform: translateX(-50%);
  }
}
.btn {
  padding: 0.3rem 1rem;
  background-color: @c1;
  color: #fff;
  border-radius: 2rem;
  font-size: 0.7rem;
  &.s1 {
    background-color: transparent;
    border: 1px solid @c1;
    color: @c1;
  }
}
.a-hover {
  &:hover {
    color: @c1;
  }
}

.join {
  .main-1 {
    h2 {
      font-size: 1.8rem;
      color: @c1;
      margin-bottom: 2rem;
      margin-top: 4rem;

      &:first-of-type {
        margin-top: 0;
      }
    }
    p{
      line-height: 1.8;
      margin-bottom: 1rem;
    }
    h4{
      .tit-line(1.2rem, 1rem, 1rem, 5rem, 3px, @c1);
    }
    img{
      width: 9.5rem;
      height: 9.5rem;
    }
  }
}