.banner img {
  display: block;
  width: 100%;
  height: auto;
}

@media screen and (min-width: 340px) {

  /* 企业简介 */
  .introduce {
    margin: 20px 0;
    padding: 0 10px;
    font-size: 14px;
    color: #555;
    box-sizing: border-box;
  }

  .introduce h5 {
    display: block;
    height: 40px;
    line-height: 40px;
    font-size: 16px;
    text-align: center;
    color: #000;
  }

  .introduce h5 img {
    display: inline-block;
    height: 15px;
    margin-left: 5px;
    vertical-align: middle;
    margin-top: -3px;
  }

  .introduce>img {
    display: block;
    width: 100%;
  }

  .introduce-content {
    margin-top: 5px;
  }

  /* 广告栏 */
  .advertis {
    margin: 20px 0;
    padding: 0 10px;
    font-size: 14px;
    color: #555;
    box-sizing: border-box;
  }

  .advertis-content {
    display: block;
    width: 100%;
    margin-bottom: 10px;
    position: relative;
  }

  .advertis-content>img {
    display: block;
    width: 100%;
  }

  .advertis-content>div {
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
    font-weight: bold;
    color: #fff;
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    right: 0;
    z-index: 100;
  }

  .advertis-content>div::after {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    right: 0;
    background-color: #000;
    opacity: .1;
    z-index: 99;
  }

  .advertis-content img {
    display: block;
  }

  /* 资讯 */
  .news {
    margin: 20px 0;
    padding: 0 10px;
    font-size: 14px;
    color: #555;
    box-sizing: border-box;
  }

  .news h5 {
    display: block;
    height: 40px;
    line-height: 40px;
    font-size: 16px;
    text-align: center;
    color: #000;
  }

  .news h5 img {
    display: inline-block;
    height: 15px;
    margin-left: 5px;
    vertical-align: middle;
    margin-top: -3px;
  }

  .news-content-item {
    font-size: 14px;
    line-height: 20px;
    margin-bottom: 10px;
    position: relative;
  }

  .news-content-item img {
    display: block;
    width: 100%;
  }

  .news-content-item .news-mask {
    width: 100%;
    padding: 10px;
    position: absolute;
    left: 0;
    bottom: 0;
    color: #fff;
    background-color: rgba(0, 14, 38, .8);
    box-sizing: border-box;
  }
}

@media screen and (min-width: 940px) {

  /* 企业简介 */
  .introduce {
    padding: 0;
    font-size: 16px;
    color: #555;
    margin-top: 100px;
    overflow: hidden;
  }

  .introduce h5 {
    display: block;
    width: 700px;
    height: auto;
    line-height: normal;
    margin: 10px 0;
    padding: 0 10px;
    font-size: 24px;
    text-align: left;
    color: #000;
    float: right;
    border-left: 5px solid #7895ed;
    box-sizing: border-box;
    cursor: pointer;
  }

  .introduce h5 img {
    display: block;
    height: 15px;
    margin-top: 8px;
    float: right;
  }

  .introduce>img {
    display: block;
    width: 356px;
    float: left;
  }

  .introduce-content {
    width: 700px;
    margin-top: 5px;
    font-size: 16px;
    float: right;
  }

  /* 广告栏 */
  .advertis {
    clear: both;
    display: flex;
    margin-top: 100px;
    padding: 0;
    color: #555;
    box-sizing: border-box;
    overflow: hidden;
  }

  .advertis-content {
    display: block;
    width: 100%;
    margin: 0;
    margin-right: 20px;
    position: relative;
    cursor: pointer;
  }

  .advertis-content>img {
    display: block;
    width: 100%;
  }

  .advertis-content>div {
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
    font-weight: bold;
    color: #fff;
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    right: 0;
    z-index: 100;
  }

  .advertis-content>div::after {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    right: 0;
    background-color: #000;
    opacity: .1;
    z-index: 99;
  }

  .advertis-content:hover div {
    background-color: rgba(102, 122, 194, .8);
  }

  .advertis-content img {
    display: block;
  }

  /* 资讯 */
  .news {
    margin: 0;
    padding: 0;
    margin-top: 100px;
    font-size: 16px;
    color: #555;
    box-sizing: border-box;
    overflow: hidden;
  }

  .news h5 {
    display: block;
    height: auto;
    line-height: normal;
    margin: 10px 0;
    padding: 0 10px;
    margin-bottom: 20px;
    font-size: 24px;
    text-align: left;
    color: #000;
    border-left: 5px solid #7895ed;
    box-sizing: border-box;
    cursor: pointer;
  }

  .news h5 img {
    display: block;
    height: 15px;
    margin-top: 8px;
    margin-right: 20px;
    float: right;
  }

  .news-content {
    display: flex;
  }

  .news-content-item {
    flex: 1;
    font-size: 16px;
    margin-bottom: 0;
    margin-right: 20px;
    position: relative;
    cursor: pointer;
  }

  .news-content-item img {
    display: block;
    width: 100%;
  }

  .news-content-item .news-mask {
    width: 100%;
    padding: 10px;
    position: absolute;
    left: 0;
    bottom: 0;
    color: #fff;
    background-color: rgba(0, 14, 38, .8);
    box-sizing: border-box;
    overflow: hidden;
  }

  .news-content-item .news-mask p {
    height: 48px;
    line-height: 24px;
    overflow: hidden;
    display: -webkit-box;
    -webkit-box-orient: vertical;
    -webkit-line-clamp: 2;
  }

  .news-content-item:hover .news-mask {
    background-color: rgba(102, 122, 194, .8);
  }
}