body {
    margin: 0;
    font-family: "Microsoft JhengHei", sans-serif;
    background: linear-gradient(to bottom, #f5f5f5, #ececec);
    color: #333;
  }
  
  /* 導覽列 */
  
  nav {
    background: #7b2d2d;
    padding: 18px;
    text-align: center;
    position: sticky;
    top: 0;
    z-index: 1000;
  }
  
  nav a {
    color: white;
    text-decoration: none;
    margin: 0 18px;
    font-size: 18px;
    font-weight: bold;
    transition: 0.3s;
  }
  
  nav a:hover {
    color: #ffd166;
  }
  
  /* Banner */
  
  header {
    height: 500px;
  
    background:
      linear-gradient(rgba(60, 0, 0, 0.6),
        rgba(60, 0, 0, 0.6)),
      url("https://images.unsplash.com/photo-1523240795612-9a054b0db644?auto=format&fit=crop&w=1600&q=80");
  
    background-size: cover;
    background-position: center;
  
    display: flex;
    justify-content: center;
    align-items: center;
  
    text-align: center;
    color: white;
  }
  
  .overlay {
    animation: fadeIn 2s ease;
  }
  
  header h1 {
    font-size: 60px;
    margin-bottom: 10px;
  }
  
  header p {
    font-size: 24px;
  }
  
  .btn {
    display: inline-block;
    margin-top: 20px;
    padding: 14px 35px;
  
    background: #ffd166;
    color: #4a0000;
  
    text-decoration: none;
    border-radius: 30px;
  
    font-weight: bold;
  
    transition: 0.3s;
  }
  
  .btn:hover {
    background: white;
    transform: scale(1.05);
  }
  
  /* Section */
  
  section {
    max-width: 1100px;
    margin: auto;
    padding: 60px 20px;
  }
  
  /* 個人介紹 */
  
  .profile-card {
  
    display: grid;
    grid-template-columns: 1fr 1fr;
  
    gap: 30px;
  
    background: white;
    padding: 30px;
  
    border-radius: 20px;
  
    box-shadow: 0 10px 25px rgba(0,0,0,.12);
  }
  
  .profile-card img {
    width: 100%;
    border-radius: 20px;
  }
  
  .profile-text h2 {
    color: #7b2d2d;
  }
  
  /* 宣傳區 */
  
  .promotion h2 {
    text-align: center;
    color: #7b2d2d;
    margin-bottom: 30px;
  }
  
  .cards {
  
    display: grid;
  
    grid-template-columns:
      repeat(auto-fit, minmax(250px, 1fr));
  
    gap: 20px;
  }
  
  .card {
  
    background: white;
    padding: 25px;
  
    border-radius: 18px;
  
    box-shadow: 0 8px 20px rgba(0,0,0,.1);
  
    transition: 0.3s;
  }
  
  .card:hover {
    transform: translateY(-8px);
  }
  
  .card h3 {
    color: #7b2d2d;
  }
  
  /* Footer */
  
  footer {
  
    background: #7b2d2d;
    color: white;
  
    text-align: center;
  
    padding: 30px;
    margin-top: 40px;
  }
  
  /* 動畫 */
  
  @keyframes fadeIn {
  
    from {
      opacity: 0;
      transform: translateY(20px);
    }
  
    to {
      opacity: 1;
      transform: translateY(0);
    }
  
  }
  
  /* 手機版 */
  
  @media (max-width: 768px) {
  
    .profile-card {
  
      grid-template-columns: 1fr;
    }
  
    header h1 {
  
      font-size: 40px;
    }
  
  }