@media screen and (max-width: 990px) {
  .is-header {
    background-size: 150% 140%;
    background-repeat: no-repeat;
    height: 500px;
    background-position: top center;
  }
  .is-header .is-back {
    width: 100%;
    padding-top: 5px;
    justify-content: center;
  }
  .is-header .is-back a:nth-child(2) {
    display: none;
  }
  .is-header .h-search {
    margin-top: 20px;
    width: 80%;
    padding-bottom: 80px;
  }
  .is-header .h-search form {
    width: 100%;
    height: 40px;
  }
  .is-header .h-title {
    width: 85%;
    height: 100px;
    padding: 10px;
  }
  .is-header .h-title p {
    padding-left: 10px;
    overflow: hidden;
    display: -webkit-box;
    -webkit-box-orient: vertical;
    -webkit-line-clamp: 2;
  }
  .is-main {
    width: 100%;
    height: auto;
  }
  .is-main h3 {
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
  }
  .is-main .t-tit1 {
    background-position: center;
  }
  .is-main .temp-list {
    width: 100%;
    height: auto;
    display: block;
  }
  .is-main .temp-list li {
    width: 95%;
    margin: 0 auto;
  }
  .is-main .temp-list li .m-time {
    margin-left: auto;
  }
  .is-main .t-tit2 {
    background-position: center;
  }
  .p-bom {
    bottom: 0;
  }
}
@media screen and (max-width: 468px) {
  .is-main .temp-list li a {
    width: 60%;
  }
}