.h_swiper {
  margin: 0 auto;
  width: 100vw;
  aspect-ratio: 1920/640;
}
.h_download .h_downList .h_item {
  border-bottom: 1px solid #f4f4f4;
}
.h_download .h_downList .h_item .h_L {
  width: calc(100% - 170px);
}
.h_download .h_downList .h_item .h_L .h_name {
  font-size: 28px;
  font-weight: bold;
  color: #3d3d3d;
}
.h_download .h_downList .h_item .h_L .h_desc {
  margin-top: 10px;
  line-height: 2;
  color: #3d3d3d;
}
.h_download .h_downList .h_item .h_btn {
  margin-top: 14px;
  color: #fff;
  display: inline-block;
  padding: 12px 0;
  width: 150px;
  border: 1px solid #111;
  border-radius: 6px;
  overflow: hidden;
  z-index: 2;
  position: relative;
  transition: color 0.3s;
  text-align: center;
}
.h_download .h_downList .h_item .h_btn::after {
  content: '';
  width: 100%;
  height: 100%;
  background: #111;
  position: absolute;
  top: 0;
  left: 0;
  z-index: -1;
  transition: width 0.5s;
}
.h_download .h_downList .h_item .h_btn:hover {
  color: #111;
}
.h_download .h_downList .h_item .h_btn:hover::after {
  width: 0;
  left: auto;
  right: 0;
}
@media screen and (max-width: 768px) {
  .h_download .h_downList .h_item .h_L .h_name {
    font-size: 24px;
  }
}
@media screen and (max-width: 480px) {
  .h_download .h_downList .h_item {
    padding: 15px;
    background: #F5F5F5;
    margin-top: 15px;
    justify-content: flex-end;
  }
  .h_download .h_downList .h_item .h_L {
    width: 100%;
  }
  .h_download .h_downList .h_item .h_L .h_name {
    font-size: 18px;
  }
  .h_download .h_downList .h_item .h_L .h_desc {
    margin-top: 4px;
    font-size: 14px;
  }
  .h_download .h_downList .h_item .h_btn {
    margin-top: 10px;
    width: 110px;
    padding: 7px 0;
  }
}