* { margin: 0; padding: 0; box-sizing: border-box; }

  body {
    background-color: #f1f4ff;
    font-family: 'Segoe UI', 'Helvetica Neue', Arial, sans-serif;
    color: #3a3a5c;
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
  }

  .page-wrap {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 16px;
  }

  /* ===== Hero Section ===== */
  .hero {
    text-align: center;
    padding: 40px 0 20px;
  }
  .hero img {
    width: 100%;
    max-width: 800px;
    border-radius: 16px;
    box-shadow: 0 8px 30px rgba(100, 100, 180, 0.12);
  }
  .hero-title {
    font-size: clamp(1.6rem, 4vw, 2.8rem);
    font-weight: 700;
    color: #4a4a7a;
    margin-top: 24px;
    letter-spacing: -0.5px;
  }
  .hero-sub {
    font-size: clamp(1rem, 2.2vw, 1.3rem);
    color: #7a7aaa;
    margin-top: 8px;
    font-weight: 400;
  }

  /* ===== Section Titles ===== */
  .section-title {
    text-align: center;
    font-size: clamp(1.3rem, 3vw, 2rem);
    font-weight: 700;
    color: #4a4a7a;
    margin: 50px 0 24px;
    position: relative;
  }
  .section-title::after {
    content: '';
    display: block;
    width: 60px;
    height: 4px;
    background: linear-gradient(90deg, #ff9eb5, #6ea8f5);
    border-radius: 2px;
    margin: 10px auto 0;
  }
  .section-desc {
    text-align: center;
    color: #7a7aaa;
    font-size: clamp(0.9rem, 1.8vw, 1.1rem);
    margin-bottom: 30px;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
  }

  /* ===== Product Grid (4 individual designs) ===== */
  .product-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 16px;
    margin-bottom: 20px;
  }
  .product-card {
    border-radius: 12px;
    overflow: hidden;
    background: #fff;
    box-shadow: 0 4px 16px rgba(100, 100, 180, 0.08);
    transition: transform 0.25s ease;
  }
  .product-card:hover {
    transform: translateY(-4px);
  }
  .product-card img {
    width: 100%;
    aspect-ratio: 1;
    object-fit: cover;
    display: block;
  }
  .product-card .card-label {
    text-align: center;
    padding: 12px 8px;
    font-size: 0.95rem;
    font-weight: 600;
    color: #5a5a8a;
  }

  /* ===== Wide Feature Images ===== */
  .feature-img {
    width: 100%;
    border-radius: 14px;
    box-shadow: 0 6px 24px rgba(100, 100, 180, 0.1);
    margin-bottom: 20px;
    display: block;
  }

  /* ===== Two-Column Layout ===== */
  .two-col {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
    margin-bottom: 20px;
  }
  .two-col img {
    width: 100%;
    border-radius: 12px;
    box-shadow: 0 4px 16px rgba(100, 100, 180, 0.08);
    aspect-ratio: 1;
    object-fit: cover;
  }

  /* ===== Three-Column Layout ===== */
  .three-col {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 16px;
    margin-bottom: 20px;
  }
  .three-col img {
    width: 100%;
    border-radius: 12px;
    box-shadow: 0 4px 16px rgba(100, 100, 180, 0.08);
    aspect-ratio: 1;
    object-fit: cover;
  }

  /* ===== Scene Section ===== */
  .scene-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
    margin-bottom: 20px;
    align-items: start;
  }
  .scene-row img {
    width: 100%;
    border-radius: 14px;
    box-shadow: 0 6px 24px rgba(100, 100, 180, 0.1);
  }
  .scene-text {
    padding: 20px 0;
  }
  .scene-text h3 {
    font-size: clamp(1.2rem, 2.5vw, 1.6rem);
    color: #4a4a7a;
    margin-bottom: 12px;
  }
  .scene-text p {
    color: #6a6a9a;
    font-size: clamp(0.9rem, 1.6vw, 1.05rem);
    line-height: 1.7;
  }

  /* ===== How-To Section ===== */
  .howto-wrap {
    background: #fff;
    border-radius: 16px;
    padding: 30px 20px;
    margin-bottom: 20px;
    box-shadow: 0 4px 20px rgba(100, 100, 180, 0.08);
    text-align: center;
  }
  .howto-wrap img {
    width: 100%;
    max-width: 700px;
    border-radius: 12px;
    margin: 0 auto;
    display: block;
  }

  /* ===== FAQ Section ===== */
  .faq-section {
    padding: 40px 0 60px;
  }
  .faq-item {
    background: #fff;
    border-radius: 12px;
    padding: 24px 28px;
    margin-bottom: 14px;
    box-shadow: 0 2px 12px rgba(100, 100, 180, 0.06);
  }
  .faq-q {
    font-size: clamp(1rem, 2vw, 1.15rem);
    font-weight: 700;
    color: #4a4a7a;
    margin-bottom: 10px;
  }
  .faq-a {
    font-size: clamp(0.9rem, 1.6vw, 1rem);
    color: #6a6a9a;
    line-height: 1.7;
  }

  /* ===== Footer ===== */
  .page-footer {
    text-align: center;
    padding: 30px 0 40px;
    color: #9a9aba;
    font-size: 0.85rem;
  }

  /* ===== Responsive ===== */
  @media (max-width: 768px) {
    .product-grid {
      grid-template-columns: repeat(2, 1fr);
      gap: 12px;
    }
    .two-col {
      grid-template-columns: 1fr;
      gap: 14px;
    }
    .three-col {
      grid-template-columns: 1fr;
      gap: 12px;
    }
    .scene-row {
      grid-template-columns: 1fr;
      gap: 14px;
    }
    .faq-item {
      padding: 18px 20px;
    }
  }

  @media (max-width: 480px) {
    .page-wrap {
      padding: 0 10px;
    }
    .hero {
      padding: 20px 0 10px;
    }
    .product-grid {
      grid-template-columns: 1fr 1fr;
      gap: 8px;
    }
    .product-card .card-label {
      font-size: 0.8rem;
      padding: 8px 4px;
    }
  }