.md-news-det {
  padding-bottom: 0.97rem;
}
.md-news-det .zone_nav {
  padding: 0.05rem 0;
}

.md-news-11 {
  width: calc(1100 / 1600 * 100%);
}
@media screen and (max-width: 900px) {
  .md-news-11 {
    width: 100%;
  }
}

.md-news-12 {
  width: calc(400 / 1600 * 100%);
}
@media screen and (max-width: 900px) {
  .md-news-12 {
    width: 100%;
  }
}