.project-series-link {
  padding: 55px 0 65px;
  text-align: center;
  position: relative;
  transition: all 0.3s;
}

.project-series-link h2 {
  font-size: 6.5rem;
  line-height: 1;
}

.sub-title {
  font-size: 1.4rem;
  margin-top: 18px;
}

.title-wrap {
  max-width: 350px;
  margin: auto;
  padding-bottom: 25px;
  border-bottom: 1px solid #a6a6a6;
}

.project-series-link p {
  font-size: 1.4rem;
  margin-top: 35px;
}

.estageo-series-link {
  background: #cecfcf;
}

.others-series-link {
  background: #6b6b6b;
  margin: 5px 0 40px;
  color: #fff;
}

.project-series-link-arrow {
  width: 19px;
  position: absolute;
  top: 50%;
  right: 50px;
  transform: translateY(-50%);
  transition: all 0.3s;
}

.estageo-series-link:hover {
  background: #b6b6b6;
}

.others-series-link:hover {
  background: #606060;
}

.project-series-link:hover .project-series-link-arrow {
  margin-right: -10px;
}