@media screen and (max-width: 1200px) {
  .sj-bd {
    padding-bottom: 35px;
    overflow-x: scroll;
  }
  .sj-bd::-webkit-scrollbar {
    width: auto;
    height: 4px;
  }
  .sj-bd::-webkit-scrollbar-track {
    background-color: #f8f8f8;
    opacity: 0.5;
    -webkit-border-radius: 2em;
    -moz-border-radius: 2em;
    border-radius: 2em;
  }
  .sj-bd::-webkit-scrollbar-thumb {
    background-color: #bbbbbb;
    -webkit-border-radius: 2em;
    -moz-border-radius: 2em;
    border-radius: 2em;
  }
}
@media screen and (max-width: 1024px) {
  .sj-hd {
    margin-top: 15px;
  }
}
@media screen and (max-width: 779px) {
  .sj-hd {
    margin-top: 0;
  }
  .sj-hd ul {
    margin-right: -10px;
  }
  .sj-hd ul li {
    width: 50%;
    margin-top: 10px;
    line-height: 45px;
  }
  .sj-hd ul li a,
  .sj-hd ul li span {
    margin-right: 10px;
    font-size: 15px;
  }
  .sj-bd {
    margin-top: 20px;
    padding-bottom: 15px;
  }
  .sj-bd .sj-img {
    padding-bottom: 25px;
    overflow-x: scroll;
  }
  .sj-bd .sj-img img {
    max-height: calc(100vw * 345 / 500);
  }
  .sj-bd .download {
    margin: 10px auto 0 auto;
  }
  .sj-zf {
    margin: 20px 0 -20px 0;
    padding: 20px 0;
  }
  .sj-zf .zf-lm {
    max-width: 280px;
  }
  .sj-zf .zf-box {
    width: 100%;
    margin-top: 15px;
    float: none;
  }
  .sj-zf .zf-box .bd.infolist {
    margin-top: 13px;
  }
  .sj-zf .zf-box .bd.infolist ul li {
    margin: 0;
    padding: 12px 0 12px 13px;
    line-height: 24px;
    border-bottom: 1px solid #f5f5f5;
    background-position: left 20px;
    position: relative;
  }
  .sj-zf .zf-box .bd.infolist ul li a {
    min-height: 24px;
    max-height: 48px;
    margin-left: 0;
    padding: 0 0 5px 0;
    white-space: normal;
    display: -webkit-box;
    -webkit-box-orient: vertical;
    -webkit-line-clamp: 2;
  }
  .sj-zf .zf-box .bd.infolist ul li span {
    position: static;
  }
}