body {
      font-family: "Helvetica Neue", sans-serif;
      margin: 0;
      padding: 0;
      background-color: #f9f5ef;
      color: #333;
      line-height: 1.7;
    }
    header {
      text-align: center;
      padding: 2rem 1rem 0;
    }
    header img {
      max-width: 100%;
      width: 400px;
      height: auto;
      border-radius: 8px;
      margin: 0 auto;
      display: block;
    }
    
    main {
      max-width: 700px;
      margin: 0 auto;
      padding: 2rem 1rem;
    }
    h1 {
      font-size: 2rem;
      margin-bottom: 0.5rem;
      text-align: center;
      margin-top: 1rem;
    }
    h2 {
      margin-top: 2rem;
      font-size: 1.2rem;
    }
    .price {
      background: #fff7d6;
      padding: 1rem;
      border-left: 4px solid #f5c518;
      margin: 1.5rem 0;
    }
    .note {
      font-size: 0.9rem;
      color: #666;
    }
    .buy {
      text-align: center;
      margin: 2rem 0;
    }