.head ul {
  position: relative;
}

.head ul .to_li {
  position: absolute;
  display: block;
  width: 40px;
  height: 5px;
  background: #C70009;
  border-radius: 49px 21px 0px 0px;
  bottom: -34px;
  left: 46%;
}

.fen {
  width: 81.25rem;
  margin: 0 auto;
  position: relative;
}

.fen .title {
  font-size: 30px;
  font-family: Source Han Sans, Source Han Sans;
  font-weight: 900;
  color: #3D3D3D;
  line-height: 56px;
  display: flex;
  align-items: center;
  margin-top: 46px;
  position: relative;
}

.fen .title::before {
  content: "";
  display: inline-block;
  width: 6px;
  height: 56px;
  margin-right: 20px;
  background-color: #C70009;
}

.fen .two {
  width: 80rem;
  margin-left: 20px;
  font-size: 18px;
  font-family: Source Han Sans, Source Han Sans;
  font-weight: 400;
  color: #787878;
  line-height: 30px;
  margin-top: 30px;
}

.fen .technology {
  width: 100%;
  margin-top: 20px;
  display: flex;
  justify-content: space-between;
  align-content: space-between;
  flex-wrap: wrap;
  z-index: 2;
}

.fen .technology a {
  display: block;
  width: 49.2%;
}

.fen .technology .child {
  position: relative;
  width: 100%;
  height: 312px;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  transition: linear all 500ms;
  border-radius: 10px 10px 10px 10px;
  margin-top: 36px;
  overflow: hidden;
}

.fen .technology .child:hover {
  box-shadow: 27px 21px 44px 0px rgba(24, 35, 80, 0.18);
}

.fen .technology .child:hover .tec_sp {
  bottom: 62px;
}

.fen .technology .child:hover div {
  left: 0px;
  bottom: 12px;
}

.fen .technology .child .tec_more {
  position: absolute;
  font-size: 14px;
  font-family: Source Han Sans, Source Han Sans;
  font-weight: 700;
  color: #FCD106;
  margin-left: 46px;
  border: none;
  transition: all linear 300ms;
  bottom: -100px;
}

.fen .technology .child .tec_more::after {
  content: "";
  display: inline-block;
  width: 14px;
  height: 8px;
  background: url("../../imgs/home/info_to_yellow.png") center right no-repeat;
  background-size: 100%;
  margin-left: 9px;
}

.fen .technology .child .tec_sp {
  position: absolute;
  bottom: 23px;
  margin-left: 46px;
  transition: all linear 300ms;
}

.fen .technology .child .tec_sp span {
  font-size: 36px;
  font-family: Source Han Sans, Source Han Sans;
  font-weight: 700;
  color: #FFFFFF;
  transition: all linear 300ms;
}

.fen .technology .child .tec_sp p {
  width: 550px;
  font-size: 18px;
  font-family: Source Han Sans, Source Han Sans;
  font-weight: 500;
  color: #FFFFFF;
  transition: all linear 300ms;
  margin-top: 17px;
}