.categories {
  margin: 20px 0;
  display: flex;
  align-items: center;
}

.categories a {
  margin: 0 1em;
}

.categories > span {
  width: 1px;
  height: 1em;
  background: var(--textColor);
  display: inline-block;
}

.category {
  letter-spacing: 0.4px;
  text-align: center;
  font-weight: 500;
}

.category:hover {
 color: var(--mainColor); 
}

.articles {
  display: grid;
  grid-template-columns: 1fr 1fr;
}

.articles article {
  width: 90%;
  display: flex;
  flex-direction: column;
  margin-bottom: 80px;
}

.articles article .caseImg {
  width: 560px;
  height: 295px;
}

.articles article .caseImg > img, .articles article .caseImg a > img {
  width: 100%;
  height: 100%;
  display: block;
  object-fit: cover;
  object-position: 50% 50%;
}

.hrLine {
  height: 1px;
  width: 100%;
  background: var(--mainColor);
}

article .title a {
  text-decoration: none;
  color: var(--mainColor);
}

.buildingBanners img {
  width: 100%;
}

.buildingBanners > div {
  position: absolute;
  top: 0;
  margin: 2em;
}

.buildingBanners > div span {
  width: 12em;
  height: 3px;
  background: #FFF;
  display: block;
}

.buildingBanners > div h1 {
  font-size: 3.4rem;
  line-height: 1.2em;
  color: #FFF;
  margin: 0;
  text-shadow: 3px 3px 7px black;
}

.buildingBanners > div h2 {
  color: #FFF;
  font-weight: 600;
  writing-mode: vertical-rl;
  margin-left: 0;
  margin-top: 1em;
}

@media screen and (max-width: 800px) {
  .categories {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
  }
  .categories a {
    line-height: 2em;
  }
}

@media screen and (max-width: 750px) {
  .buildingBanners > div h1 {
    font-size: 3rem;
  }
  .buildingBanners > div h2 {
    font-size: 2rem;
  }
}

@media screen and (max-width: 500px) {
  .buildingBanners > div h1 {
    font-size: 1.2rem;
  }
  .buildingBanners > div h2 {
    font-size: 0.01rem;
  }
  .buildingBanners > div {
    margin:0.5em;
  }
  .buildingBanners > div > span {
    width: 4.5em;
  }
}