/* 持続可能な未来を創造する */
.subpage-about{
  padding: 60px 20px;
}

.subpage-about .l-container{
  max-width: 1120px;
    margin: 0 auto;
    text-align: center;
}

.subpage-about h2{
  font-size: 48px;
  font-weight: 500;
  color: #333;
  margin-bottom: 30px;
}

.subpage-about-text {
  max-width: 900px;
  margin: 0 auto;
  text-align: center;
  letter-spacing: 0.05em;
  line-height: 1.8;
  color: #444;
  font-size: 16px;
  padding-bottom: 100px;
}

/* ▼ レスポンシブ対応（767px以下） */
@media screen and (max-width: 768px) {
  .subpage-about {
    padding: 40px 15px;
  }

  .subpage-about h2 {
    font-size: 32px;
    margin-bottom: 20px;
  }

  .subpage-about-text {
    font-size: 15px;
    padding-bottom: 60px;
    text-align: left;
  }
}

/* ▼ スマホ対応（480px以下） */
@media screen and (max-width: 480px) {
  .subpage-about {
    padding: 30px 10px;
  }

  .subpage-about h2 {
    font-size: 24px;
  }

  .subpage-about-text {
    font-size: 14px;
    padding-bottom: 40px;
  }
}

/* aboutサブページリンクボタン */
.subpage-about-nav-links {
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
    gap: 20px;
  }
  
  .nav-card {
    display: block;
    width: 22%;
    text-decoration: none;
    color: #333;
    overflow: hidden;
    position: relative;
  }

  .nav-card-image {
    position: relative;
    overflow: hidden; 
  }
  
  .nav-card-image img {
    width: 100%;
    height: auto;
    display: block;
    transition: transform 0.4s ease;
  }
  
  .nav-card:hover .nav-card-image img {
    transform: scale(1.05);
  }
  
  .nav-card-title {
    position: absolute;
    bottom: 4px;
    right: 4px;
    background-color:#f6f7f8;
    color: #222;
    font-size: 1.1rem;
    font-family: "Zen Kaku Gothic New", sans-serif;
    padding: 4px 12px;
    z-index: 1;
  }

  
  
@media screen and (max-width: 767px) {
  .subpage-about-nav-links {
    grid-template-columns: repeat(2,1fr);
  }}