* {
    box-sizing: border-box;
  }
  
  body {
    margin: 0;
    font-family: "Yu Gothic", "Meiryo", sans-serif;
    color: #1f332a;
    background: #f7fbf6;
    line-height: 1.8;
  }
  
  a {
    text-decoration: none;
  }
  
  .hero {
    min-height: 72vh;
    background:
      linear-gradient(rgba(80, 115, 93, 0.72), rgba(80, 115, 93, 0.72)),
      url("images/hero.jpg") center / cover no-repeat;
    display: flex;
    align-items: center;
    padding: 60px 20px;
    color: #fff;
  }
  
  .hero-inner {
    width: min(1080px, 100%);
    margin: 0 auto;
  }
  
  .site-label {
    display: inline-block;
    background: rgba(255, 255, 255, 0.18);
    padding: 8px 18px;
    border-radius: 999px;
    font-weight: 800;
    margin-bottom: 22px;
  }
  
  .hero h1 {
    font-size: clamp(2.6rem, 6vw, 5rem);
    line-height: 1.25;
    margin: 0 0 28px;
    font-weight: 900;
  }
  
  .hero-lead {
    font-size: clamp(1.2rem, 3vw, 1.8rem);
    font-weight: 800;
    margin-bottom: 34px;
  }
  
  .hero-buttons {
    display: flex;
    flex-wrap: wrap;
    gap: 16px;
  }
  
  .btn {
    display: inline-block;
    padding: 16px 28px;
    border-radius: 999px;
    font-size: 1.05rem;
    font-weight: 900;
    text-align: center;
  }
  
  .btn-primary {
    background: #15964b;
    color: #fff;
    box-shadow: 0 8px 20px rgba(21, 150, 75, 0.28);
  }
  
  .btn-secondary {
    background: #fff;
    color: #138241;
  }
  
  .btn-form {
    background: #f2a93b;
    color: #fff;
    box-shadow: 0 8px 20px rgba(242, 169, 59, 0.28);
  }
  
  .btn.large {
    font-size: 1.15rem;
    padding: 18px 34px;
  }
  
  .section {
    padding: 72px 20px;
  }
  
  .container {
    width: min(1080px, 100%);
    margin: 0 auto;
  }
  
  .section-label {
    color: #15964b;
    font-weight: 900;
    margin-bottom: 8px;
  }
  
  h2 {
    font-size: clamp(1.9rem, 4vw, 2.8rem);
    line-height: 1.35;
    margin: 0 0 26px;
  }
  
  .schedule-section {
    background: #f7fbf6;
  }
  
  .schedule-grid,
  .photo-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
  }
  
  .schedule-card,
  .notice-box,
  .beginner-box,
  .photo-card,
  .entry-box {
    background: #fff;
    border-radius: 24px;
    padding: 28px;
    box-shadow: 0 10px 28px rgba(40, 80, 50, 0.08);
  }
  
  .schedule-card span {
    display: inline-block;
    background: #e2f4e7;
    color: #15964b;
    padding: 4px 14px;
    border-radius: 999px;
    font-weight: 900;
    margin-bottom: 12px;
  }
  
  .schedule-card h3 {
    font-size: 1.6rem;
    margin: 0 0 10px;
  }
  
  .entry-section {
    background: #ffffff;
  }
  
  .entry-box p {
    font-size: 1.15rem;
    font-weight: 700;
  }
  
  .entry-box ul {
    padding-left: 22px;
    margin: 20px 0;
  }
  
  .entry-box li {
    margin-bottom: 10px;
    font-size: 1.1rem;
    font-weight: 700;
  }
  
  .entry-note {
    margin: 24px 0;
    font-weight: 900;
  }
  
  .notice-section {
    background: #eef8ef;
  }
  
  .notice-item {
    border-bottom: 1px solid #d6e8d8;
    padding: 18px 0;
  }
  
  .notice-item:last-child {
    border-bottom: none;
  }
  
  .notice-item time {
    color: #52725d;
    font-weight: 800;
  }
  
  .notice-item h3 {
    margin: 6px 0;
    font-size: 1.3rem;
  }
  
  .beginner-section {
    background: #ffffff;
  }
  
  .beginner-box p {
    font-size: 1.2rem;
    font-weight: 700;
    margin: 0 0 12px;
  }
  
  .photo-section {
    background: #f7fbf6;
  }
  
  .photo-card {
    min-height: 160px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: #dcefe0;
    color: #1f332a;
    font-size: 1.3rem;
    font-weight: 900;
  }
  
  .footer {
    background: #1f332a;
    color: #fff;
    text-align: center;
    padding: 34px 20px;
  }
  
  .footer p {
    margin: 4px 0;
  }
  
  .company-name {
    font-size: 0.95rem;
    opacity: 0.82;
  }
  
  @media (max-width: 900px) {
    .schedule-grid,
    .photo-grid {
      grid-template-columns: repeat(2, 1fr);
    }
  }
  
  @media (max-width: 600px) {
    .hero {
      min-height: 68vh;
      padding: 52px 18px;
    }
  
    .hero-buttons {
      flex-direction: column;
    }
  
    .btn {
      width: 100%;
      font-size: 1.1rem;
      padding: 18px 20px;
    }
  
    .schedule-grid,
    .photo-grid {
      grid-template-columns: 1fr;
    }
  
    .section {
      padding: 56px 18px;
    }
  }
  .photo-card {
    overflow: hidden;
    padding: 0;
  }
  
  .photo-card img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
  }