section.gpu-cluster.conthead h1 ,
section.gpu-cluster.conthead h2 {
 position: relative;
 margin: 60px auto 80px;
 font-size: 32px;
 text-align: center;
}
section.gpu-cluster.conthead h1:after ,
section.gpu-cluster.conthead h2:after {
 content: "";
 position: absolute;
 bottom: -20px;
 left: 0;
 right: 0;
 margin: auto;
 width: 50px;
 height: 3px;
 background: #1650a2;
}

section.gpu-cluster.contents h3 {
  margin-bottom: 16px;
  font-size: 18px;
}
section.gpu-cluster.contents p {
  margin-bottom: 16px;
}
section.gpu-cluster.contents figure {
  margin-bottom: 16px;
  text-align: center;
}
section.gpu-cluster.contents figure figcaption {
  margin-top: 5px;
}

@media (min-width: 641px) {
  section.gpu-cluster.contents h3 {
    margin-top: 30px;
    font-size: 22px;
  }
  section.gpu-cluster.contents .box_flex {
    display: flex;
    justify-content: space-between;
    gap: 50px;
  }
  section.gpu-cluster.contents .box_flex div {
    width: calc(65% - 50px);
  }
  section.gpu-cluster.contents .box_flex figure {
    width: 35%;
  }
}

/* list */
.software_list {
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 20px;
}
.software_list li {
  width: 100%;
}
.software_list li a {
  display: block;
  padding: 20px;
  width: 100%;
  height: 100%;
  background: #000;
  color: #fff;
}
.software_list li a:hover {
  opacity: .7;
}
.software_list li h2 {
  margin-bottom: 8px;
  font-size: 20px;
  font-weight: bold;
}
@media (min-width: 641px) {
  .software_list {
    gap: 40px;
  }
  .software_list li {
    width: calc((100% - 40px) / 2);
  }
  .software_list li figure {
    margin-bottom: 20px;
  }
  .software_list li h2 {
    font-size: 28px;
  }
}