:root {
      --bg-color: #f1f4ff;
      --card-bg: #ffffff;
      --primary-text: #1a1e29;
      --secondary-text: #596174;
      --accent-red: #c83c3c;
      --accent-blue: #1c4966;
      --accent-gold: #c59b27;
      --border-color: #e2e7f5;
      --card-radius: 16px;
      --shadow: 0 10px 30px rgba(28, 73, 102, 0.06);
      --transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
    }

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

    body {
      background-color: var(--bg-color);
      color: var(--primary-text);
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
      line-height: 1.6;
      padding: 30px 16px;
      -webkit-font-smoothing: antialiased;
    }

    .container {
      max-width: 1120px;
      margin: 0 auto;
    }

    /* Header Section */
    .hero-header {
      text-align: center;
      margin-bottom: 40px;
      padding: 20px 10px;
    }

    .hero-tag {
      display: inline-block;
      font-size: 0.85rem;
      font-weight: 700;
      letter-spacing: 2px;
      text-transform: uppercase;
      color: var(--accent-red);
      background-color: rgba(200, 60, 60, 0.08);
      padding: 6px 16px;
      border-radius: 30px;
      margin-bottom: 16px;
    }

    .hero-title {
      font-size: clamp(2rem, 5vw, 3.2rem);
      font-weight: 800;
      letter-spacing: -0.5px;
      line-height: 1.2;
      color: var(--primary-text);
      margin-bottom: 14px;
    }

    .hero-subtitle {
      font-size: clamp(1rem, 2.5vw, 1.2rem);
      color: var(--secondary-text);
      max-width: 720px;
      margin: 0 auto;
    }

    /* Specs Banner */
    .specs-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
      gap: 16px;
      margin-bottom: 48px;
    }

    .spec-item {
      background: var(--card-bg);
      border: 1px solid var(--border-color);
      border-radius: var(--card-radius);
      padding: 20px;
      text-align: center;
      box-shadow: var(--shadow);
    }

    .spec-icon {
      font-size: 1.6rem;
      margin-bottom: 8px;
    }

    .spec-label {
      font-size: 0.85rem;
      color: var(--secondary-text);
      text-transform: uppercase;
      letter-spacing: 1px;
      font-weight: 600;
    }

    .spec-value {
      font-size: 1.1rem;
      font-weight: 700;
      color: var(--primary-text);
      margin-top: 4px;
    }

    /* Gallery Section - Two column responsive */
    .section-title {
      font-size: 1.8rem;
      font-weight: 800;
      text-align: center;
      margin-bottom: 8px;
      letter-spacing: -0.5px;
    }

    .section-desc {
      text-align: center;
      color: var(--secondary-text);
      font-size: 1rem;
      margin-bottom: 36px;
    }

    .gallery-grid {
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 28px;
      margin-bottom: 60px;
    }

    .gallery-card {
      background: var(--card-bg);
      border: 1px solid var(--border-color);
      border-radius: var(--card-radius);
      overflow: hidden;
      box-shadow: var(--shadow);
      display: flex;
      flex-direction: column;
      transition: var(--transition);
    }

    .gallery-card:hover {
      transform: translateY(-4px);
      box-shadow: 0 16px 36px rgba(28, 73, 102, 0.1);
    }

    .image-wrapper {
      position: relative;
      width: 100%;
      padding-top: 100%; /* 1:1 Aspect Ratio */
      background-color: var(--bg-color);
      overflow: hidden;
    }

    .image-wrapper img {
      position: absolute;
      top: 0;
      left: 0;
      width: 100%;
      height: 100%;
      object-fit: cover;
      display: block;
    }

    .card-meta {
      padding: 20px;
      flex-grow: 1;
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }

    .card-num {
      font-size: 0.75rem;
      font-weight: 800;
      color: var(--accent-blue);
      text-transform: uppercase;
      letter-spacing: 1.5px;
      margin-bottom: 6px;
    }

    .card-title {
      font-size: 1.15rem;
      font-weight: 700;
      color: var(--primary-text);
      margin-bottom: 8px;
    }

    .card-description {
      font-size: 0.92rem;
      color: var(--secondary-text);
      line-height: 1.5;
    }

    /* FAQ Section - Pure native details/summary, no buttons or links */
    .faq-section {
      background: var(--card-bg);
      border: 1px solid var(--border-color);
      border-radius: var(--card-radius);
      padding: 40px 32px;
      box-shadow: var(--shadow);
      margin-bottom: 50px;
    }

    .faq-header {
      text-align: center;
      margin-bottom: 32px;
    }

    .faq-list {
      display: flex;
      flex-direction: column;
      gap: 16px;
      max-width: 860px;
      margin: 0 auto;
    }

    .faq-item {
      border: 1px solid var(--border-color);
      border-radius: 12px;
      background: #fafbff;
      overflow: hidden;
      transition: var(--transition);
    }

    .faq-item[open] {
      background: #ffffff;
      border-color: rgba(28, 73, 102, 0.25);
      box-shadow: 0 4px 16px rgba(28, 73, 102, 0.05);
    }

    .faq-question {
      padding: 18px 24px;
      font-size: 1.05rem;
      font-weight: 700;
      color: var(--primary-text);
      cursor: pointer;
      list-style: none;
      display: flex;
      justify-content: space-between;
      align-items: center;
      user-select: none;
    }

    .faq-question::-webkit-details-marker {
      display: none;
    }

    .faq-question::after {
      content: "+";
      font-size: 1.4rem;
      font-weight: 400;
      color: var(--accent-blue);
      transition: transform 0.2s ease;
    }

    .faq-item[open] .faq-question::after {
      content: "−";
      color: var(--accent-red);
    }

    .faq-answer {
      padding: 0 24px 20px 24px;
      font-size: 0.95rem;
      color: var(--secondary-text);
      line-height: 1.6;
    }

    /* Footer - Pure presentation */
    .showcase-footer {
      text-align: center;
      padding: 30px 10px 10px 10px;
      color: var(--secondary-text);
      font-size: 0.88rem;
    }

    .footer-divider {
      width: 60px;
      height: 3px;
      background: var(--accent-red);
      margin: 0 auto 16px auto;
      border-radius: 2px;
    }

    /* Mobile Responsive Adjustments */
    @media (max-width: 768px) {
      body {
        padding: 16px 10px;
      }

      .gallery-grid {
        grid-template-columns: 1fr;
        gap: 20px;
      }

      .faq-section {
        padding: 28px 18px;
      }

      .faq-question {
        padding: 14px 18px;
        font-size: 0.98rem;
      }

      .faq-answer {
        padding: 0 18px 16px 18px;
        font-size: 0.9rem;
      }
    }