@media screen and (max-width: 1200px) {
  .lm-hd ul {
    margin-right: -10px;
  }
  .lm-hd ul li a {
    margin-right: 10px;
  }
}
@media screen and (max-width: 1024px) {
  .lm-hd ul li a .img {
    display: none;
  }
  .lm-hd ul li a .img-span {
    max-width: 90%;
    padding: 0 5px;
    font-size: 18px;
  }
  .lm-hd ul li:hover a .img,
  .lm-hd ul li.active a .img {
    display: none;
  }
  .lm-bd {
    padding: 0 15px 15px 15px;
  }
  .lm-bd .box .box-lm-hd {
    font-size: 18px;
  }
  .lm-bd .box .box-lm-bd ul li {
    width: 33.33%;
  }
}
@media screen and (max-width: 779px) {
  .header {
    background-position: 80% bottom;
  }
  .header .logo-jc {
    margin-top: 10px;
  }
  .header .logo-jc img {
    max-width: 45px;
  }
  .header .logo-jc a {
    font-size: 20px;
  }
  .header .jc-font {
    max-width: 668px;
    margin: 55px auto 100px auto;
    text-align: center;
  }
  .nav {
    display: none;
  }
  .lm-hd {
    margin: 13px 0;
  }
  .lm-hd ul {
    margin: -13px 0 0 0;
  }
  .lm-hd ul li {
    width: 100%;
    float: none;
  }
  .lm-hd ul li a {
    margin: 13px 0 0 0;
    display: block;
    overflow: hidden;
  }
  .lm-hd ul li a .img-span {
    min-width: 100%;
    font-size: 17px;
    line-height: 45px;
    background-color: #f8f8f8;
  }
  .lm-hd ul li:nth-child(n+5) {
    margin-top: 0;
  }
  .lm-bd {
    padding: 0 10px 10px 10px;
  }
  .lm-bd .box .box-lm-hd {
    padding-top: 15px;
    font-size: 17px;
  }
  .lm-bd .box .box-lm-bd ul {
    margin: 5px 0 0 0;
  }
  .lm-bd .box .box-lm-bd ul li {
    width: 100%;
  }
  .lm-bd .box .box-lm-bd ul li .lv1 {
    margin: 10px 0 0 0;
    padding: 10px;
  }
  .lm-bd .box .box-lm-bd ul li .lv2 {
    width: 100%;
    background-color: #f1f5f9;
    border: 0;
    position: static;
  }
  .lm-bd .box .box-lm-bd ul li .lv2 ul {
    margin: 0 10px;
    padding: 5px 0;
    box-sizing: border-box;
    border-top: 1px solid #2760b7;
    border-left: 0;
    border-bottom: 0;
    border-right: 0;
  }
}