main .introduction .item p {
  font-size: 15px;
  color: #333;
  line-height: 1.8;
}
main .pioneering {
  background: #ECECEC;
}
main .pioneering .item ul {
  display: flex;
  flex-wrap: wrap;
}
main .pioneering .item ul li {
  width: 33%;
  padding: 20px 50px;
  box-sizing: border-box;
}
main .pioneering .item ul li h3 {
  display: flex;
  align-items: center;
}
main .pioneering .item ul li h3 img {
  width: 20px;
}
main .pioneering .item ul li h3 span {
  font-size: 15px;
  font-weight: bold;
  margin-left: 10px;
}
main .pioneering .item ul li p {
  font-size: 13px;
  color: #666;
  margin-top: 14px;
  line-height: 1.8;
}
main .maintenance .item ul {
  display: flex;
}
main .maintenance .item ul li {
  background: #fff;
  width: 25%;
  margin-right: 25px;
  transition: all .2s linear;
}
main .maintenance .item ul li:last-child {
  margin-right: 0;
}
main .maintenance .item ul li:hover {
  -webkit-box-shadow: 0 15px 30px rgba(0, 0, 0, 0.1);
  box-shadow: 0 15px 30px rgba(0, 0, 0, 0.1);
  -webkit-transform: translate3d(0, -2px, 0);
  transform: translate3d(0, -2px, 0);
}
main .maintenance .item ul li img {
  width: 100%;
}
main .maintenance .item ul li span {
  position: relative;
  display: inline-block;
  padding: 10px 15px;
  font-size: 15px;
  font-weight: bold;
}
main .maintenance .item ul li span::after {
  content: '';
  position: absolute;
  bottom: 8px;
  right: 22px;
  width: 43px;
  opacity: .2;
  height: 4px;
  border-radius: 14px;
  background: #1678FB;
}
main .maintenance .item ul li p {
  padding: 0 15px 15px;
  font-size: 12px;
  color: #666;
  line-height: 2;
}
main .idc {
  background: #ECECEC;
}
main .idc .item ul {
  display: flex;
  flex-wrap: wrap;
}
main .idc .item ul:last-child {
  margin-top: 30px;
}
main .idc .item ul li.on img.onBg {
  opacity: 1;
}
main .idc .item ul li.on span {
  color: #fff;
  z-index: 10;
}
main .idc .item ul li.on .imgMr {
  opacity: 0;
}
main .idc .item ul li.on .imgOn {
  opacity: 1;
  z-index: 10;
}
main .idc .item ul li {
  overflow: hidden;
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 32%;
  margin-right: 2%;
  margin-bottom: 20px;
  min-height: 150px;
  box-sizing: border-box;
  padding: 30px;
  border-radius: 10px;
  background: #fff;
}
main .idc .item ul li:nth-child(3n) {
  margin-right: 0;
}
main .idc .item ul li span {
  display: inline-block;
  width: 60%;
  font-size: 14px;
  line-height: 1.5;
  color: #333;
  padding-right: 70px;
  transition: opacity .3s linear;
}
main .idc .item ul li img.onBg {
  position: absolute;
  top: 0;
  left: 0;
  z-index: 1;
  width: 100%;
  height: 100%;
  transition: opacity .3s ease;
  opacity: 0;
}
main .idc .item ul li .imgMr {
  position: absolute;
  right: 50px;
  width: 50px;
  opacity: 1;
  transition: opacity .3s linear;
}
main .idc .item ul li .imgOn {
  position: absolute;
  right: 50px;
  width: 50px;
  opacity: 0;
  transition: opacity .3s linear;
}
main .idc .item .btn {
  margin: 20px auto 0;
  width: 120px;
  height: 35px;
}
main .idc .item .btn a {
  font-size: 14px;
}