.newsTit {
  font-size: 32px;
  font-weight: 600;
  color: rgba(38, 38, 38, 1);
  line-height: 45px;
  margin-top: 45px;
}
.newsSubTit {
  font-size: 12px;
  font-weight: 400;
  color: rgba(38, 38, 38, 1);
  line-height: 17px;
}

.news-list {
  margin: 65px -22.5px 45px;
}
.news-list>* {
  width: 33.33%;
  padding: 0 22.5px 33px;
  float: left;
}
.news-item {
  cursor: pointer;
  padding: 24px;
  border: 1px solid #DFDFDF;
  border-radius:4px;
  height: 497px;
  position: relative;
}
.news-item .cover {
  -webkit-filter: grayscale(100%);
  filter: grayscale(100%);
  transition: all .3s;
  height: 160px;
  width: 100%;
  margin: 0 0 20px;
}
.news-item .cover.hidden~h5 {
  font-size: 32px;
  line-height: 44px;
  margin-bottom: 48px;
}
.news-item h5 {
  font-size: 20px;
  font-weight: 600;
  margin: 0 0 12px;
  line-height: 28px;
}
.news-item .abstract {
  color: #666;
  height: 110px;
  line-height: 22px;
  letter-spacing: 1px;
  overflow: hidden;
  -webkit-line-clamp: 5;
  text-overflow: ellipsis;
  display: -webkit-box;
  -webkit-box-orient: vertical;
}
.news-item .date {
  margin: 10px 0 20px;
  color: #9b9b9b;
}
.news-item .tag {
  color: #9b9b9b;
  position: absolute;
  bottom: 0;
  left: 0;
  padding: 40px 24px 24px;
  width: 100%;
  background: #fff;
  border-radius: 4px;
}
.news-item:hover {
  border: 1px solid #333333;
}
.news-item:hover .cover{
  -webkit-filter: grayscale(0%);
  filter: grayscale(0%);
}


@media(max-width: 768px) {
  .newsTit {
    font-size: 36px;
    font-weight: 600;
    padding: 40px 0;
    margin: 0;
    text-align: center;
    background: url('../images/m/back-1.svg');
    background-size: cover;
  }
  .news-list{
    margin: 16px 0 -30px;
    padding: 0 15px;
  }
  .news-list>*{
    width: 100%;
    padding: 0 0 24px;
  }
  .news-item{
    height: 472px;
    padding-top: 16px;
  }
  .news-item .date{
    margin: 0 0 16px;
  }
  .news-item .tag{
    padding: 24px;
  }

  .newsSubTit{
    display: none;
  }
}