/* 主营业务 */

.business-list li::after {
  content: "";
  clear: both;
  display: block;
}

.business-list li {
  background-color: #fff;
}

.business-list li:nth-of-type(n+1) {
  margin-bottom: 30px;
}

.business-list li .left {
  float: left;
  font-size: 0;
  width: calc(100% - 480px);
}

.business-list li .right {
  float: left;
  width: 480px;
  padding: 30px;
  padding-bottom: 50px;
  box-sizing: border-box;
}

.business-list li .right .title {
  font-size: 28px;
}

.business-list li .right .content {
  padding: 50px 0;
  font-size: 14px;
  line-height: 36px;
}

.business-list li .right .more {
  padding: 50px 0;
  font-size: 14px;
  line-height: 36px;
  padding: 0 40px;
  display: inline-block;
  border-radius: 25px;
  color: #fff;
  background-color: #ab1313;
}

.business-list li .right .more:hover {
  background-color: #7c0000;
}

.business-list li:nth-of-type(2n) .left {
  float: right;
}

.business-list li:nth-of-type(2n) .right {
  float: left;
}

/* 新闻列表 */

.news-list li::after {
  content: "";
  clear: both;
  display: block;
}

.news-list li {
  border-bottom: 2px solid #f3f3f3;
}

.news-list li:nth-of-type(n+1) {
  margin-top: 20px;
}

.news-list li .left {
  width: 800px;
  float: left;
  padding-right: 20px;
  box-sizing: border-box;
}

.news-list li .left .addtime {
  color: #666;
  padding: 45px 0;
}

.news-list li .left .title {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  font-weight: bold;
  display: block;
}

.news-list li .left .introduction {
  font-size: 14px;
  color: #999;
  line-height: 30px;
  height: 60px;
  overflow: hidden;
  margin-top: 25px;
  margin-bottom: 30px;
}

.news-list li .left .icon {
  font-size: 35px;
  padding-bottom: 40px;
}

.news-list li .right {
  box-sizing: border-box;
  width: 380px;
  height: 230px;
  float: left;
  margin-top: 50px;
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
}

.news-list li .title:hover {
  color: #ab1313;
}

/* 下载组件 */

.download-list::after {
  content: "";
  clear: both;
  display: block;
}

.download-list a {
  width: calc(25% - 15px);
  margin-right: 20px;
  background-color: #fff;
  float: left;
  transition: all 0.3s;
}

.download-list a:nth-of-type(n+5) {
  margin-top: 20px;
}

.download-list a:nth-of-type(4n) {
  margin-right: 0;
}

.download-list a .icon {
  line-height: 150px;
  text-align: center;
  font-size: 60px;
}

.download-list a .title {
  line-height: 40px;
  text-align: center;
  color: #333;
  display: block;
  border-top: 1px solid #eee;
  font-weight: bold;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  padding: 0 10px;
  font-size: 14px;
}

.download-list a:hover {
  box-shadow: 2px 2px 5px rgba(0, 0, 0, 0.1);
}

@media screen and (max-width:1200px) {
  /* 主营业务 */
  .business-list li .left {
    width: 100%;
  }
  .business-list li .right {
    width: 100%;
    padding: 20px;
  }
  .business-list li .right .title {
    font-size: 18px;
    font-weight: bold;
  }
  .business-list li .right .content {
    padding: 20px 0;
    font-size: 12px;
    line-height: 30px;
  }
  /* 新闻列表 */
  .news-list li .left {
    width: 100%;
  }
  .news-list li .right {
    width: 100%;
    margin-top: 15px;
  }
  .news-list li .left .addtime {
    padding: 10px 0;
  }
  .news-list li .left .introduction {
    line-height: 25px;
    height: 50px;
    margin-top: 10px;
    margin-bottom: 15px;
  }
  .news-list li .left .icon {
    display: none;
  }
  /* 下载 */
 
  .download-list a {
    width: calc(50% - 5px);
    margin-right: 10px;
  }
  .download-list a .icon{
    font-size: 40px;
  }
  .download-list a:nth-of-type(2n) {
    margin-right: 0px;
  }
  .download-list a:nth-of-type(n+3) {
    margin-top: 10px;
  }
}