body {
    background: #f0f8ff;
    font-family: 'Noto Sans JP', sans-serif;
    scroll-behavior: smooth;
  }
  
  header {
    background-color: #007bff;
    color: white;
    padding: 1rem 1rem;
    text-align: center;
    font-size: 2rem;
    font-weight: bold;
  }
  
  .main-content {
    padding: 3rem 1rem;
    text-align: center;
  }
  
  .footer {
    background-color: #f8f9fa;
    padding: 2rem;
    text-align: center;
    border-top: 4px solid #007bff;
  }
  
  .map-frame {
    border: 0;
    border-radius: 10px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
  }
  
  .staff-form {
    max-width: 500px;
  }
  
  .trial-section {
    position: relative;
    background-image: url("images/top-1.png");
    background-size: cover;
    background-position: center;
    color: #fff;
    text-align: center;
    padding: 100px 20px;
  }
  
  .trial-section::before {
    content: "";
    position: absolute;
    inset: 0;
    background-color: rgba(0, 0, 0, 0.4);
    z-index: 1;
  }
  
  .trial-section * {
    position: relative;
    z-index: 2;
  }
  
  .btn-primary {
    border-radius: 8px;
    font-size: 1.2rem;
    box-shadow: 0 4px 8px rgba(0,0,0,0.2);
    padding: 10px 30px;
  }
  
  .btn-success, .btn-warning, .btn-info {
    border-radius: 8px;
    font-size: 1rem;
    padding: 8px 24px;
    box-shadow: 0 2px 6px rgba(0,0,0,0.15);
    margin: 0.5rem;
  }
  
  #access {
    background: linear-gradient(to bottom, #f0f8ff, #ffffff);
  }
  
  #courses, #features, #gallery {
    background-color: #ffffff;
    border-top: 3px solid #007bff;
    border-bottom: 3px solid #007bff;
    margin-bottom: 2rem;
  }
  
  #courses ul.list-group li,
  #features ul.list-group li {
    background-color: #fdfdfd;
    border-left: 5px solid #007bff;
    margin-bottom: 10px;
    padding: 1rem;
    text-align: left;
  }
  
  #gallery .bg-secondary {
    border-radius: 10px;
    background-color: #dee2e6 !important;
    box-shadow: 0 4px 6px rgba(0,0,0,0.1);
  }
  
  footer ul {
    list-style: none;
    padding: 0;
  }
  
  footer ul li {
    margin-bottom: 1rem;
    text-align: left;
    font-size: 0.95rem;
  }
  
  h3 {
    color: #007bff;
    font-weight: bold;
    margin-bottom: 1.5rem;
  }
  
  h4 {
    color: #343a40;
    font-weight: bold;
    margin-top: 2rem;
  }
  
  .gallery-placeholder {
    height: 200px;
  }
  
  #lesson-detail table th,
#lesson-detail table td {
  vertical-align: middle;
}

#lesson-detail h2 {
  font-weight: bold;
  border-left: 8px solid #0d6efd;
  padding-left: 15px;
}

/* イベント情報 */
.event-info {
    background: linear-gradient(to right, #e0f7ff, #ffffff);
    border-left: 6px solid #00aaff;
    border-radius: 10px;
    padding: 20px;
    margin: 40px auto 30px;
    max-width: 800px;
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.05);
    text-align: center;
  }
  
  .event-info h3 {
    color: #007bff;
    font-size: 22px;
    margin-bottom: 10px;
  }
  
  .event-info p {
    font-size: 16px;
    color: #333;
    line-height: 1.6;
  }