.desy-about3 {
  padding: clamp(30px, 4.1vw, 60px) 0 0;
  position: relative;
}
/* 
.desy-about3::after {
  content: "";
  background: #F8F8F8;
  height: 195px;
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
} */

.desy-about3 .tit {
  text-align: center;
  position: relative;
  z-index: 10;
}

.desy-about3 .tit h3 {
  font-size: clamp(24px, 1.88vw, 36px);
  font-weight: 700;
  display: inline-block;
  border-bottom: 1px solid #2c4f85;
}

.desy-about3 .tit p {
  font-size: clamp(14px, 0.94vw, 18px);
  color: #666;
  max-width: 1050px;
  margin: 30px auto 0;
  line-height: 1.6;
}

.desy-about3 .list {
  margin: 30px 0 0;
  box-shadow: 0 0 29px rgba(14, 4, 9, 0.09);
  padding: 70px;
  background: #ededed;
  position: relative;
  z-index: 10;
}

.desy-about3 ul {
  margin: 0 -35px;
  display: -webkit-flex;
  display: flex;
  -webkit-flex-wrap: wrap;
  flex-wrap: wrap;
}

.desy-about3 ul li {
  width: 25%;
  padding: 0 20px;
  text-align: center;
  position: relative;
}

.desy-about3 ul li:not(:nth-child(3n+1))::after {
  content: "";
  width: 1px;
  height: 100%;
  background: #a4a4a4;
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
}

.desy-about3 ul li:nth-child(-n+3) .box {
  padding-bottom: 30px;
}

.desy-about3 ul li:nth-child(n+4) .box {
  border-left: 1px solid #9a9a9a;
  padding-left: 30px;
}

.desy-about3 ul li h6 {
  font-size: clamp(25px, 2.6vw, 46px);
  color: #002a6c;
  line-height: 1;
  font-weight: 700;
}

.desy-about3 ul li h6 em {
  font-weight: 700;
}

/*===新增修改：数字下方、描述上方的标题基础样式===*/
.desy-about3 ul li .item-title{
  font-size: 20px;
  color: #222;
  font-weight: 600;
  margin: 14px 0 8px;
}

.desy-about3 ul li p {
  font-size: clamp(14px, 0.94vw, 18px);
  color: #000000;
  margin-top: 15px;
  text-align: center;
}

.desy-about3 .list ul li .box p.h3 strong {
  font-size: clamp(18px, 1.04vw, 20px);
}


@media screen and (max-width:1400px) {

  /*===新增修改：1400px适配小标题字号===*/
  .desy-about3 ul li .item-title{
    font-size: 18px;
  }

}

@media screen and (max-width:960px) {


  .desy-about3::after {
    display: none;
  }

  .desy-about3 .tit p {
    line-height: 1.4;
    margin: 20px auto 0;
  }

  .desy-about3 .list {
    margin: 30px 0 0;
    box-shadow: 0 0 10px rgba(14, 4, 9, 0.09);
    padding: 20px;
    background: #fff;
    position: relative;
    z-index: 10;
  }

  .desy-about3 ul {
    margin: 0 -10px;
    display: -webkit-flex;
    display: flex;
    -webkit-flex-wrap: wrap;
    flex-wrap: wrap;
  }

  .desy-about3 ul li {
    width: 50%;
    padding: 10px 10px;
    text-align: center;
    position: relative;
  }

  .desy-about3 ul li:not(:nth-child(3n+1))::after {
    display: none;
  }

  .desy-about3 ul li:nth-child(-n+3) .box {
    padding-bottom: 10px;
  }

  .desy-about3 ul li:nth-child(n+4) .box {
    border-top: none;
    padding-top: 10px;
  }

  .desy-about3 ul li .item-title{
    font-size: 17px;
    margin: 10px 0 6px;
  }


  .desy-about3 ul li p {
    margin-top: 10px;
  }
  .desy-about3 ul li:nth-child(n+4) .box{border-left:none;padding-left:0}
}

@media screen and (max-width:480px) {


  .desy-about3 ul li {
    width: 100%;
  }

  .desy-about3 ul li .item-title{
    font-size: 16px;
  }
}