/* Global Design Tokens & Clean Architecture */
    :root {
      --bg-surface: #f1f4ff;
      --card-surface: #ffffff;
      --text-headline: #1e293b;
      --text-sub: #64748b;
      --text-muted: #94a3b8;
      --border-color: rgba(30, 41, 59, 0.08);
      --border-focus: rgba(71, 85, 105, 0.22);
      --accent-pill: #334155;
      --accent-pill-bg: rgba(51, 65, 85, 0.08);
      --radius-sm: 8px;
      --radius-md: 14px;
      --radius-lg: 20px;
      --shadow-soft: 0 6px 20px rgba(30, 41, 59, 0.04);
      --shadow-card: 0 10px 28px rgba(30, 41, 59, 0.06);
      --shadow-hover: 0 18px 36px rgba(30, 41, 59, 0.12);
      --max-width: 1180px;
    }

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

    body {
      background-color: var(--bg-surface);
      color: var(--text-headline);
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
      line-height: 1.6;
      -webkit-font-smoothing: antialiased;
      -moz-osx-font-smoothing: grayscale;
      padding: 0;
      margin: 0;
    }

    .container {
      max-width: var(--max-width);
      margin: 0 auto;
      padding: 0 20px;
    }

    /* Header Section */
    .showcase-header {
      padding: 60px 0 36px;
      text-align: center;
    }

    .header-pill {
      display: inline-block;
      text-transform: uppercase;
      font-size: 11.5px;
      letter-spacing: 2px;
      font-weight: 700;
      color: var(--accent-pill);
      background-color: var(--accent-pill-bg);
      padding: 6px 20px;
      border-radius: 40px;
      margin-bottom: 16px;
      border: 1px solid rgba(51, 65, 85, 0.15);
    }

    .header-title {
      font-size: 34px;
      font-weight: 800;
      letter-spacing: -0.6px;
      color: var(--text-headline);
      line-height: 1.25;
      margin-bottom: 14px;
    }

    .header-desc {
      font-size: 16px;
      color: var(--text-sub);
      max-width: 720px;
      margin: 0 auto;
      font-weight: 400;
      line-height: 1.65;
    }

    /* Specs Highlights Ribbon */
    .specs-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 16px;
      background: var(--card-surface);
      border-radius: var(--radius-md);
      padding: 22px 24px;
      box-shadow: var(--shadow-soft);
      border: 1px solid var(--border-color);
      margin: 36px 0 54px;
    }

    .spec-unit {
      text-align: center;
      border-right: 1px solid var(--border-color);
      padding: 0 10px;
    }

    .spec-unit:last-child {
      border-right: none;
    }

    .spec-tag {
      font-size: 11px;
      font-weight: 700;
      text-transform: uppercase;
      letter-spacing: 1px;
      color: var(--text-muted);
      margin-bottom: 4px;
    }

    .spec-value {
      font-size: 14.5px;
      font-weight: 700;
      color: var(--text-headline);
    }

    /* Section Component */
    .showcase-section {
      margin-bottom: 60px;
    }

    .section-headline-box {
      text-align: center;
      margin-bottom: 30px;
    }

    .section-badge {
      display: inline-block;
      font-size: 11px;
      font-weight: 700;
      text-transform: uppercase;
      letter-spacing: 1.5px;
      color: var(--accent-pill);
      background-color: var(--accent-pill-bg);
      padding: 4px 14px;
      border-radius: 20px;
      margin-bottom: 10px;
    }

    .section-title {
      font-size: 26px;
      font-weight: 800;
      color: var(--text-headline);
      margin-bottom: 8px;
    }

    .section-subtext {
      font-size: 14px;
      color: var(--text-sub);
      max-width: 620px;
      margin: 0 auto;
    }

    /* Symmetric 2-Column Responsive Layout */
    .gallery-grid {
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 24px;
    }

    /* Card Component (Pure Display, No Links, No Buttons) */
    .product-card {
      background: var(--card-surface);
      border-radius: var(--radius-lg);
      overflow: hidden;
      box-shadow: var(--shadow-card);
      border: 1px solid var(--border-color);
      display: flex;
      flex-direction: column;
      transition: transform 0.28s ease, box-shadow 0.28s ease, border-color 0.28s ease;
    }

    .product-card:hover {
      transform: translateY(-4px);
      box-shadow: var(--shadow-hover);
      border-color: var(--border-focus);
    }

    /* 1:1 Aspect Ratio Photo Container */
    .photo-viewport {
      width: 100%;
      aspect-ratio: 1 / 1;
      position: relative;
      background-color: var(--bg-surface);
      overflow: hidden;
    }

    .photo-viewport img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      display: block;
      transition: transform 0.4s ease;
    }

    .product-card:hover .photo-viewport img {
      transform: scale(1.025);
    }

    /* Card Details */
    .card-info {
      padding: 22px 24px 26px;
      display: flex;
      flex-direction: column;
      flex-grow: 1;
    }

    .card-indicator {
      display: inline-block;
      align-self: flex-start;
      font-size: 11px;
      font-weight: 700;
      text-transform: uppercase;
      letter-spacing: 1.2px;
      color: var(--accent-pill);
      background-color: var(--accent-pill-bg);
      padding: 3px 10px;
      border-radius: 20px;
      margin-bottom: 10px;
    }

    .card-heading {
      font-size: 17.5px;
      font-weight: 700;
      color: var(--text-headline);
      margin-bottom: 8px;
      line-height: 1.35;
    }

    .card-text {
      font-size: 13.5px;
      color: var(--text-sub);
      line-height: 1.6;
    }

    /* Craft & Engineering Feature Strip */
    .features-strip {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 18px;
      margin: 48px 0 64px;
    }

    .feature-card {
      background: var(--card-surface);
      border-radius: var(--radius-md);
      padding: 24px 20px;
      box-shadow: var(--shadow-card);
      border: 1px solid var(--border-color);
      border-top: 3.5px solid var(--accent-pill);
    }

    .feature-index {
      font-size: 19px;
      font-weight: 800;
      color: var(--accent-pill);
      margin-bottom: 6px;
    }

    .feature-name {
      font-size: 15px;
      font-weight: 700;
      color: var(--text-headline);
      margin-bottom: 6px;
    }

    .feature-desc {
      font-size: 13px;
      color: var(--text-sub);
      line-height: 1.55;
    }

    /* FAQ Accordion Section */
    .faq-wrapper {
      max-width: 860px;
      margin: 0 auto;
      display: flex;
      flex-direction: column;
      gap: 14px;
    }

    .faq-card {
      background: var(--card-surface);
      border-radius: var(--radius-md);
      border: 1px solid var(--border-color);
      box-shadow: var(--shadow-card);
      overflow: hidden;
      transition: border-color 0.2s ease, box-shadow 0.2s ease;
    }

    .faq-card[open] {
      border-color: var(--border-focus);
    }

    .faq-header {
      padding: 18px 24px;
      font-size: 15.5px;
      font-weight: 700;
      color: var(--text-headline);
      cursor: pointer;
      display: flex;
      align-items: center;
      justify-content: space-between;
      user-select: none;
      list-style: none;
    }

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

    .faq-header::after {
      content: "+";
      font-size: 22px;
      font-weight: 400;
      color: var(--accent-pill);
      transition: transform 0.2s ease;
      margin-left: 14px;
    }

    .faq-card[open] .faq-header::after {
      content: "\2212";
      transform: rotate(180deg);
    }

    .faq-content {
      padding: 0 24px 20px;
      font-size: 14px;
      color: var(--text-sub);
      line-height: 1.7;
      border-top: 1px solid rgba(30, 41, 59, 0.05);
      padding-top: 14px;
    }

    /* Footer */
    .showcase-footer {
      padding: 46px 0 56px;
      text-align: center;
      border-top: 1px solid var(--border-color);
      margin-top: 70px;
    }

    .footer-note {
      font-size: 13px;
      color: var(--text-muted);
      letter-spacing: 0.5px;
      line-height: 1.6;
    }

    /* Responsive Queries */
    @media (max-width: 960px) {
      .specs-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 20px;
      }
      .spec-unit:nth-child(2) {
        border-right: none;
      }
      .features-strip {
        grid-template-columns: repeat(2, 1fr);
      }
    }

    @media (max-width: 640px) {
      .header-title {
        font-size: 27px;
      }
      .header-desc {
        font-size: 14px;
      }
      .gallery-grid {
        grid-template-columns: 1fr;
        gap: 20px;
      }
      .specs-grid {
        grid-template-columns: 1fr;
      }
      .spec-unit {
        border-right: none;
        border-bottom: 1px solid var(--border-color);
        padding-bottom: 12px;
      }
      .spec-unit:last-child {
        border-bottom: none;
        padding-bottom: 0;
      }
      .features-strip {
        grid-template-columns: 1fr;
      }
      .faq-header {
        font-size: 14.5px;
        padding: 16px 18px;
      }
      .faq-content {
        padding: 0 18px 16px;
        font-size: 13.5px;
      }
    }