/* ==========================================================================
       CSS RESET & VARIABLES
       ========================================================================== */
    *, *::before, *::after {
      box-sizing: border-box;
      margin: 0;
      padding: 0;
    }

    :root {
      --bg-base: #f1f4ff;
      --card-bg: #ffffff;
      --card-bg-subtle: #f8faff;
      --text-main: #1e2433;
      --text-body: #4a5568;
      --text-muted: #718096;
      --accent-primary: #5c6ac4;
      --accent-soft: rgba(92, 106, 196, 0.08);
      --accent-tag-bg: #eef2ff;
      --accent-tag-text: #4338ca;
      --border-color: #dbe4f9;
      --border-light: #eef2fa;
      --radius-xl: 20px;
      --radius-lg: 16px;
      --radius-md: 12px;
      --radius-sm: 8px;
      --shadow-sm: 0 4px 12px rgba(45, 60, 100, 0.04);
      --shadow-md: 0 8px 24px rgba(45, 60, 100, 0.07);
      --shadow-card: 0 6px 18px rgba(45, 60, 100, 0.06);
    }

    body {
      background-color: var(--bg-base);
      color: var(--text-main);
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
      line-height: 1.6;
      -webkit-font-smoothing: antialiased;
      padding: 24px 16px 80px;
    }

    .page-container {
      max-width: 1240px;
      margin: 0 auto;
    }

    /* ==========================================================================
       HERO HEADER (NO BRAND, NO LOGO, NO BUTTONS, NO LINKS)
       ========================================================================== */
    .hero-header {
      background: var(--card-bg);
      border-radius: var(--radius-xl);
      border: 1px solid var(--border-color);
      box-shadow: var(--shadow-md);
      padding: 44px 28px 36px;
      text-align: center;
      margin-bottom: 32px;
    }

    .badge-pill {
      display: inline-block;
      font-size: 13px;
      font-weight: 700;
      letter-spacing: 1.2px;
      text-transform: uppercase;
      color: var(--accent-tag-text);
      background: var(--accent-tag-bg);
      padding: 6px 18px;
      border-radius: 40px;
      margin-bottom: 16px;
      border: 1px solid rgba(92, 106, 196, 0.15);
    }

    .main-title {
      font-size: 32px;
      font-weight: 800;
      color: var(--text-main);
      line-height: 1.25;
      margin-bottom: 14px;
      letter-spacing: -0.5px;
    }

    .main-subtitle {
      font-size: 16px;
      color: var(--text-body);
      max-width: 860px;
      margin: 0 auto 24px;
    }

    .highlight-chips {
      display: flex;
      flex-wrap: wrap;
      justify-content: center;
      gap: 10px;
    }

    .chip-item {
      font-size: 13px;
      font-weight: 600;
      color: var(--text-body);
      background: var(--bg-base);
      border: 1px solid var(--border-color);
      padding: 6px 16px;
      border-radius: 30px;
    }

    /* ==========================================================================
       SECTION STRUCTURE
       ========================================================================== */
    .showcase-section {
      background: var(--card-bg);
      border-radius: var(--radius-xl);
      border: 1px solid var(--border-color);
      box-shadow: var(--shadow-md);
      padding: 36px 28px;
      margin-bottom: 32px;
    }

    .section-heading {
      margin-bottom: 28px;
      text-align: left;
    }

    .section-eyebrow {
      display: inline-block;
      font-size: 12px;
      font-weight: 700;
      text-transform: uppercase;
      letter-spacing: 1px;
      color: var(--accent-tag-text);
      margin-bottom: 6px;
    }

    .section-title {
      font-size: 24px;
      font-weight: 800;
      color: var(--text-main);
      margin-bottom: 8px;
      letter-spacing: -0.3px;
    }

    .section-desc {
      font-size: 15px;
      color: var(--text-muted);
      max-width: 780px;
    }

    /* ==========================================================================
       RESPONSIVE GRID SYSTEM (4 COLS DESKTOP, 2 COLS MOBILE)
       ========================================================================== */
    .grid-4-col {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
    }

    /* ==========================================================================
       PRODUCT SHOWCASE CARDS (PURE DISPLAY, NO LINKS, NO BUTTONS)
       ========================================================================== */
    .product-card {
      background: var(--card-bg-subtle);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-lg);
      overflow: hidden;
      display: flex;
      flex-direction: column;
      box-shadow: var(--shadow-card);
      transition: transform 0.2s ease, box-shadow 0.2s ease;
    }

    .product-card:hover {
      transform: translateY(-3px);
      box-shadow: 0 12px 28px rgba(45, 60, 100, 0.1);
    }

    .image-box {
      width: 100%;
      aspect-ratio: 1 / 1;
      background-color: var(--bg-base);
      display: flex;
      align-items: center;
      justify-content: center;
      overflow: hidden;
      position: relative;
    }

    .image-box img {
      width: 100%;
      height: 100%;
      object-fit: contain;
      display: block;
      transition: transform 0.3s ease;
    }

    .product-card:hover .image-box img {
      transform: scale(1.03);
    }

    .card-content {
      padding: 18px 16px 20px;
      flex-grow: 1;
      display: flex;
      flex-direction: column;
      justify-content: space-between;
      gap: 12px;
    }

    .card-tag {
      display: inline-block;
      font-size: 11px;
      font-weight: 700;
      text-transform: uppercase;
      letter-spacing: 0.6px;
      color: var(--accent-tag-text);
      background: var(--accent-tag-bg);
      padding: 3px 8px;
      border-radius: 6px;
      margin-bottom: 6px;
    }

    .card-title {
      font-size: 16px;
      font-weight: 700;
      color: var(--text-main);
      line-height: 1.35;
      margin-bottom: 6px;
    }

    .card-desc {
      font-size: 13px;
      color: var(--text-body);
      line-height: 1.5;
    }

    .feature-points {
      list-style: none;
      padding-top: 8px;
      border-top: 1px dashed var(--border-color);
      margin-top: 6px;
    }

    .feature-points li {
      font-size: 12px;
      color: var(--text-muted);
      line-height: 1.5;
      position: relative;
      padding-left: 14px;
      margin-bottom: 3px;
    }

    .feature-points li::before {
      content: "•";
      color: var(--accent-primary);
      position: absolute;
      left: 0;
      font-weight: bold;
    }

    /* ==========================================================================
       TECHNICAL SPECIFICATIONS TABLE (NO BUTTONS)
       ========================================================================== */
    .table-wrapper {
      overflow-x: auto;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-lg);
      background: var(--card-bg);
    }

    .spec-table {
      width: 100%;
      border-collapse: collapse;
      text-align: left;
      font-size: 14px;
    }

    .spec-table tr {
      border-bottom: 1px solid var(--border-light);
    }

    .spec-table tr:last-child {
      border-bottom: none;
    }

    .spec-table th {
      background-color: var(--card-bg-subtle);
      color: var(--text-main);
      font-weight: 700;
      padding: 16px 20px;
      width: 26%;
      vertical-align: top;
      border-right: 1px solid var(--border-light);
    }

    .spec-table td {
      padding: 16px 20px;
      color: var(--text-body);
      line-height: 1.6;
    }

    /* ==========================================================================
       FAQ ACCORDION-STYLE CARDS (PURE CSS DISPLAY, NO JAVASCRIPT, NO BUTTONS)
       ========================================================================== */
    .faq-grid {
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 16px;
    }

    .faq-card {
      background: var(--card-bg-subtle);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 20px;
    }

    .faq-q {
      font-size: 15px;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 8px;
      display: flex;
      align-items: flex-start;
      gap: 8px;
    }

    .faq-icon {
      color: var(--accent-primary);
      font-weight: 800;
      flex-shrink: 0;
    }

    .faq-a {
      font-size: 13.5px;
      color: var(--text-body);
      line-height: 1.6;
      padding-left: 20px;
    }

    /* ==========================================================================
       MEDIA QUERIES (DESKTOP / TABLET / MOBILE)
       ========================================================================== */
    @media (max-width: 1024px) {
      .grid-4-col {
        grid-template-columns: repeat(2, 1fr);
      }
      .faq-grid {
        grid-template-columns: 1fr;
      }
    }

    @media (max-width: 640px) {
      body {
        padding: 16px 10px 60px;
      }
      .hero-header {
        padding: 28px 16px 24px;
        margin-bottom: 20px;
      }
      .main-title {
        font-size: 24px;
      }
      .main-subtitle {
        font-size: 14px;
      }
      .showcase-section {
        padding: 24px 14px;
        margin-bottom: 20px;
      }
      .section-title {
        font-size: 20px;
      }
      .grid-4-col {
        grid-template-columns: repeat(2, 1fr);
        gap: 12px;
      }
      .card-content {
        padding: 12px 10px 14px;
      }
      .card-title {
        font-size: 14px;
      }
      .card-desc {
        font-size: 12px;
      }
      .spec-table th {
        width: 35%;
        padding: 12px;
        font-size: 13px;
      }
      .spec-table td {
        padding: 12px;
        font-size: 13px;
      }
    }