.download_con {
  padding-bottom: 100px;
}
.download_category {
  padding-top: 100px;
  justify-content: center;
}
.download_category div {
  color: #333333;
  font-size: 20px;
  margin: 0 70px;
  padding: 0 5px 20px;
  position: relative;
  cursor: pointer;
  transition: all 0.3s ease;
}
.download_category div::after {
  content: '';
  position: absolute;
  left: 50%;
  bottom: 0;
  width: 0;
  height: 3px;
  background: #45C25B;
  transition: all 0.3s ease;
  border-radius: 3px;
}
.download_category div.on,
.download_category div:hover {
  color: #45C25B;
}
.download_category div.on::after,
.download_category div:hover::after {
  width: 100%;
  left: 0;
}
.down_list {
  display: flex;
  flex-wrap: wrap;
  margin-top: 70px;
}
.down_list li {
  flex: none;
  width: 28.846%;
  margin-right: 6.73%;
  margin-bottom: 30px;
  display: inline-flex;
  align-items: center;
  justify-content: space-between;
  border: 1px solid #E4E4E4;
  border-radius: 10px;
  padding: 26px 26px;
  box-sizing: border-box;
  transition: all 0.3s ease;
}
.down_list li:nth-child(3n) {
  margin-right: 0;
}
.down_list li .left {
  flex: none;
  width: calc(100% - 10px - 48px);
}
.down_list li .left .font20 {
  font-size: 20px;
  color: #000;
  font-weight: bold;
  margin-bottom: 40px;
}
.down_list li .left .l_btm {
  display: flex;
  color: #666;
  font-size: 14px;
}
.down_list li .left .l_btm .icon_down {
  flex: none;
  width: 40%;
  box-sizing: border-box;
  padding-left: 22px;
  background: url(../images/product/icon1.png) no-repeat left center;
  background-size: 22px 24px;
}
.down_list li .left .l_btm .icon_size {
  flex: none;
  width: 60%;
  box-sizing: border-box;
  padding-left: 22px;
  background: url(../images/product/icon2.png) no-repeat left center;
  background-size: 22px 24px;
}
.down_list li .down {
  display: inline-block;
  background: url(../images/product/down.png) no-repeat left center;
  background-size: 48px 41px;
  width: 48px;
  height: 41px;
}
.down_list li:hover {
  background: #46C35B;
}
.down_list li:hover .left .font20,
.down_list li:hover .left .l_btm {
  color: #fff;
}
.down_list li:hover .left .l_btm .icon_down {
  background: url(../images/product/icon1_a.png) no-repeat left center;
  background-size: 22px 24px;
}
.down_list li:hover .left .l_btm .icon_size {
  background: url(../images/product/icon2_a.png) no-repeat left center;
  background-size: 22px 24px;
}
.down_list li:hover .down {
  background: url(../images/product/down_a.png) no-repeat left center;
  background-size: 48px 41px;
}
@media screen and (max-width: 1024px) {
  .download_category {
    overflow-x: scroll;
    padding-top: 35px;
  }
  .download_category div {
    flex: none;
    margin: 0 20px;
    font-size: 15px;
    padding-bottom: 10px;
  }
  .down_list {
    margin-top: 20px;
  }
  .down_list li {
    width: 100%;
    margin-right: 0;
    margin-bottom: 13px;
    padding: 15px 15px;
  }
  .down_list li .left {
    width: calc(100% - 55px);
  }
  .down_list li .left .font20 {
    font-size: 17px;
  }
  .down_list li .left .l_btm .icon_down {
    font-size: 12px;
  }
  .down_list li .down {
    width: 37.5px;
    height: 32px;
    background-size: 37.5px 32px;
  }
  .down_list li:hover .down {
    width: 37.5px;
    height: 32px;
    background-size: 37.5px 32px;
  }
  .download_con {
    padding-bottom: 45px;
  }
  .pages {
    margin-top: 12px;
  }
}