:root {
      --primary: #2A5CAA;
      --primary-light: #4A7CC8;
      --primary-dark: #1E4580;
      --secondary: #F5F7FA;
      --accent: #FF6B35;
      --danger: #E53935;
      --danger-bg: #FFF1F0;
      --danger-border: #FFCCC7;
      --text: #1F2937;
      --text-light: #6B7280;
      --border: #E5E7EB;
      --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.06);
      --shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
      --shadow-hover: 0 12px 32px rgba(0, 0, 0, 0.12);
      --radius: 16px;
      --radius-sm: 10px;
      --transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
    }

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

    body {
      font-family: 'Roboto', sans-serif;
      line-height: 1.7;
      color: var(--text);
      background-color: #fff;
      -webkit-font-smoothing: antialiased;
    }

    .container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }

    /* ---------- Section titles ---------- */
    .section-title {
      font-family: 'Montserrat', sans-serif;
      font-size: 2.1rem;
      font-weight: 700;
      text-align: center;
      margin-bottom: 16px;
      color: var(--primary);
      letter-spacing: -0.02em;
    }
    .section-title::after {
      content: '';
      display: block;
      width: 72px;
      height: 4px;
      background: linear-gradient(90deg, var(--primary), var(--accent));
      margin: 16px auto 0;
      border-radius: 2px;
    }
    .section-subtitle {
      text-align: center;
      color: var(--text-light);
      font-size: 1.05rem;
      max-width: 720px;
      margin: 0 auto 48px;
    }

    /* ---------- Buttons ---------- */
    .btn {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      padding: 14px 32px;
      border-radius: 40px;
      font-weight: 500;
      font-size: 0.95rem;
      text-decoration: none;
      transition: var(--transition);
      border: none;
      cursor: pointer;
    }
    .btn-primary {
      background: var(--primary);
      color: #fff;
      box-shadow: 0 4px 16px rgba(42, 92, 170, 0.25);
    }
    .btn-primary:hover {
      background: var(--primary-dark);
      transform: translateY(-2px);
      box-shadow: 0 8px 24px rgba(42, 92, 170, 0.35);
    }
    .btn-outline {
      background: transparent;
      color: var(--primary);
      border: 2px solid var(--primary);
    }
    .btn-outline:hover {
      background: var(--primary);
      color: #fff;
    }
    .btn-accent {
      background: var(--accent);
      color: #fff;
      box-shadow: 0 4px 16px rgba(255, 107, 53, 0.3);
    }
    .btn-accent:hover {
      background: #e85a24;
      transform: translateY(-2px);
      box-shadow: 0 8px 24px rgba(255, 107, 53, 0.4);
    }

    /* ---------- Hero ---------- */
    .hero {
      padding: 80px 0 90px;
      background: linear-gradient(160deg, #F0F4FA 0%, #fff 55%, #FDF8F5 100%);
      position: relative;
      overflow: hidden;
    }
    .hero::before {
      content: '';
      position: absolute;
      top: -200px;
      right: -150px;
      width: 600px;
      height: 600px;
      background: radial-gradient(circle, rgba(42, 92, 170, 0.06) 0%, transparent 70%);
      border-radius: 50%;
      pointer-events: none;
    }
    .hero-content {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 64px;
      align-items: center;
      position: relative;
    }
    .hero-text { max-width: 520px; }
    .hero-badge {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      background: rgba(255, 107, 53, 0.1);
      color: var(--accent);
      padding: 6px 18px;
      border-radius: 40px;
      font-size: 0.8rem;
      font-weight: 600;
      letter-spacing: 0.5px;
      text-transform: uppercase;
      margin-bottom: 24px;
    }
    .hero-title {
      font-family: 'Montserrat', sans-serif;
      font-size: 2.8rem;
      font-weight: 700;
      color: var(--primary-dark);
      line-height: 1.15;
      margin-bottom: 20px;
      letter-spacing: -0.03em;
    }
    .hero-description {
      font-size: 1.08rem;
      color: var(--text-light);
      margin-bottom: 32px;
      line-height: 1.8;
    }
    .hero-actions { display: flex; gap: 16px; flex-wrap: wrap; margin-bottom: 40px; }
    .hero-specs { display: flex; flex-wrap: wrap; gap: 12px; }
    .hero-spec {
      background: #fff;
      border: 1px solid var(--border);
      padding: 8px 18px;
      border-radius: 40px;
      font-size: 0.85rem;
      font-weight: 500;
      color: var(--text-light);
      box-shadow: var(--shadow-sm);
    }
    .hero-spec strong { color: var(--primary); font-weight: 600; }
    .hero-image {
      width: 100%;
      border-radius: var(--radius);
      box-shadow: var(--shadow);
      transition: var(--transition);
    }
    .hero-image:hover { transform: scale(1.01); }

    /* ---------- Key advantages ---------- */
    .advantages { padding: 80px 0; background: #fff; }
    .advantages-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
      gap: 24px;
    }
    .advantage-card {
      background: var(--secondary);
      border-radius: var(--radius);
      padding: 36px 28px;
      text-align: center;
      transition: var(--transition);
      border: 1px solid transparent;
    }
    .advantage-card:hover {
      background: #fff;
      border-color: var(--primary-light);
      box-shadow: var(--shadow-hover);
      transform: translateY(-4px);
    }
    .advantage-icon {
      width: 56px;
      height: 56px;
      margin: 0 auto 20px;
      display: flex;
      align-items: center;
      justify-content: center;
      background: #fff;
      border-radius: 14px;
      box-shadow: var(--shadow-sm);
    }
    .advantage-icon svg { width: 28px; height: 28px; stroke: var(--primary); fill: none; stroke-width: 1.8; }
    .advantage-card h3 { font-size: 1.05rem; font-weight: 600; color: var(--primary); margin-bottom: 10px; }
    .advantage-card p { font-size: 0.9rem; color: var(--text-light); line-height: 1.7; }

    /* ---------- Image processing ---------- */
    .processing { padding: 96px 0; background: var(--secondary); }
    .processing-header { text-align: center; margin-bottom: 56px; }
    .processing-kicker {
      display: inline-block;
      color: var(--accent);
      font-size: 0.8rem;
      font-weight: 600;
      letter-spacing: 1.5px;
      text-transform: uppercase;
      margin-bottom: 14px;
    }
    .processing-title {
      font-family: 'Montserrat', sans-serif;
      font-size: 2.2rem;
      font-weight: 700;
      color: var(--primary-dark);
      line-height: 1.25;
      letter-spacing: -0.02em;
      margin-bottom: 20px;
    }
    .processing-intro {
      color: var(--text-light);
      font-size: 1.05rem;
      max-width: 720px;
      margin: 0 auto;
      line-height: 1.8;
    }

    /* --- ESP32E6-E01 Exclusive callout --- */
    .processing-exclusive {
      display: flex;
      align-items: flex-start;
      gap: 14px;
      background: #FFF4EE;
      border: 1.5px solid var(--accent);
      border-left-width: 5px;
      border-radius: var(--radius-sm);
      padding: 18px 22px;
      max-width: 760px;
      margin: 28px auto 0;
      text-align: left;
      box-shadow: 0 4px 16px rgba(255, 107, 53, 0.1);
    }
    .processing-exclusive .exclusive-icon {
      flex-shrink: 0;
      width: 38px;
      height: 38px;
      display: flex;
      align-items: center;
      justify-content: center;
      background: var(--accent);
      border-radius: 10px;
    }
    .processing-exclusive .exclusive-icon svg {
      width: 20px;
      height: 20px;
      stroke: #fff;
      fill: none;
      stroke-width: 2.2;
    }
    .processing-exclusive strong {
      display: block;
      color: var(--accent);
      font-size: 0.95rem;
      font-weight: 700;
      margin-bottom: 3px;
    }
    .processing-exclusive span {
      display: block;
      color: var(--text-light);
      font-size: 0.85rem;
      line-height: 1.6;
    }

    /* --- Firmware warning --- */
    .processing-warning {
      display: flex;
      align-items: flex-start;
      gap: 14px;
      background: var(--danger-bg);
      border: 1.5px solid var(--danger-border);
      border-left: 5px solid var(--danger);
      border-radius: var(--radius-sm);
      padding: 18px 22px;
      max-width: 760px;
      margin: 18px auto 0;
      text-align: left;
      box-shadow: 0 4px 16px rgba(229, 57, 53, 0.08);
    }
    .processing-warning svg {
      flex-shrink: 0;
      width: 22px;
      height: 22px;
      stroke: var(--danger);
      fill: none;
      stroke-width: 2.2;
      margin-top: 2px;
    }
    .processing-warning strong {
      display: block;
      color: var(--danger);
      font-size: 0.95rem;
      font-weight: 700;
      margin-bottom: 4px;
    }
    .processing-warning span {
      display: block;
      color: #8A2B2B;
      font-size: 0.88rem;
      line-height: 1.65;
    }
    .processing-warning span em {
      font-style: normal;
      font-weight: 700;
      color: var(--danger);
    }

    .processing-compare {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 28px;
      margin-bottom: 56px;
    }
    .compare-card {
      position: relative;
      background: #fff;
      border-radius: var(--radius);
      overflow: hidden;
      box-shadow: var(--shadow);
      border: 1px solid var(--border);
      transition: var(--transition);
    }
    .compare-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-hover); }
    .compare-card img { width: 100%; display: block; aspect-ratio: 4 / 3; object-fit: cover; }
    .compare-caption { padding: 18px 24px; border-top: 1px solid var(--border); }
    .compare-caption strong { display: block; color: var(--primary); font-size: 1rem; font-weight: 600; margin-bottom: 2px; }
    .compare-caption span { color: var(--text-light); font-size: 0.85rem; }
    .compare-card.enhanced { border-color: var(--accent); border-width: 2px; }
    .compare-card.enhanced .compare-caption { background: rgba(255, 107, 53, 0.04); }
    .compare-card.enhanced .compare-caption strong { color: var(--accent); }

    /* Orange corner flag on the enhanced image */
    .compare-card .exclusive-flag {
      position: absolute;
      top: 14px;
      right: 14px;
      z-index: 2;
      background: var(--accent);
      color: #fff;
      font-size: 0.7rem;
      font-weight: 700;
      letter-spacing: 0.4px;
      text-transform: uppercase;
      padding: 6px 12px;
      border-radius: 20px;
      box-shadow: 0 3px 10px rgba(255, 107, 53, 0.45);
    }

    .processing-benefits {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
      margin-bottom: 56px;
    }
    .benefit-card {
      background: #fff;
      border-radius: var(--radius-sm);
      padding: 28px 24px;
      border-left: 4px solid var(--primary);
      box-shadow: var(--shadow-sm);
      transition: var(--transition);
    }
    .benefit-card:hover { box-shadow: var(--shadow); transform: translateY(-2px); }
    .benefit-card h3 { font-size: 1rem; font-weight: 600; color: var(--primary); margin-bottom: 8px; }
    .benefit-card p { color: var(--text-light); font-size: 0.9rem; line-height: 1.7; }
    .processing-palette {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 32px;
      align-items: center;
      background: #fff;
      border-radius: var(--radius);
      padding: 48px;
      box-shadow: var(--shadow);
      margin-bottom: 24px;
    }
    .palette-text .processing-kicker { margin-bottom: 10px; }
    .palette-text h3 {
      font-family: 'Montserrat', sans-serif;
      font-size: 1.6rem;
      color: var(--primary-dark);
      font-weight: 700;
      margin-bottom: 14px;
      letter-spacing: -0.02em;
    }
    .palette-text p { color: var(--text-light); font-size: 0.95rem; margin-bottom: 20px; }
    .palette-text img { width: 100%; border-radius: var(--radius-sm); margin-bottom: 12px; }
    .palette-text .palette-caption { font-size: 0.82rem; color: var(--text-light); font-style: italic; }
    .palette-chart img { width: 100%; border-radius: var(--radius-sm); box-shadow: var(--shadow-sm); }
    .palette-chart figcaption { margin-top: 12px; text-align: center; font-size: 0.85rem; color: var(--text-light); }
    .palette-chart figcaption span { display: block; font-size: 0.78rem; color: #9CA3AF; margin-top: 2px; }
    .processing-note {
      font-size: 0.8rem;
      color: #9CA3AF;
      line-height: 1.7;
      max-width: 900px;
      margin: 0 auto 32px;
      text-align: center;
      font-style: italic;
    }
    .processing-cta { text-align: center; }

    /* ---------- Features ---------- */
    .features { padding: 80px 0; background: #fff; }
    .features-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
      gap: 24px;
    }
    .feature-card {
      background: var(--secondary);
      border-radius: var(--radius);
      padding: 32px 28px;
      border: 1px solid transparent;
      transition: var(--transition);
      display: flex;
      flex-direction: column;
    }
    .feature-card:hover {
      background: #fff;
      transform: translateY(-6px);
      box-shadow: var(--shadow-hover);
      border-color: var(--primary-light);
    }
    .feature-icon {
      width: 52px;
      height: 52px;
      display: flex;
      align-items: center;
      justify-content: center;
      background: #fff;
      border-radius: 12px;
      margin-bottom: 20px;
      transition: var(--transition);
      box-shadow: var(--shadow-sm);
    }
    .feature-card:hover .feature-icon { background: var(--primary); }
    .feature-icon svg { width: 26px; height: 26px; stroke: var(--primary); fill: none; stroke-width: 1.8; transition: var(--transition); }
    .feature-card:hover .feature-icon svg { stroke: #fff; }
    .feature-card h3 { font-size: 1.1rem; font-weight: 600; color: var(--primary); margin-bottom: 10px; }
    .feature-card p { color: var(--text-light); font-size: 0.92rem; line-height: 1.7; flex: 1; }
    .feature-card a { color: var(--primary); font-weight: 500; text-decoration: none; }
    .feature-card a:hover { text-decoration: underline; }

    /* ---------- Specifications ---------- */
    .specs { padding: 80px 0; background: var(--secondary); }
    .specs-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
      gap: 0;
      border-radius: var(--radius);
      overflow: hidden;
      border: 1px solid var(--border);
      box-shadow: var(--shadow-sm);
      background: #fff;
    }
    .spec-item {
      display: flex;
      justify-content: space-between;
      align-items: center;
      padding: 16px 24px;
      border-bottom: 1px solid var(--border);
      border-right: 1px solid var(--border);
      font-size: 0.92rem;
      gap: 12px;
      background: #fff;
      transition: background 0.2s;
    }
    .spec-item:hover { background: var(--secondary); }
    .spec-label { font-weight: 500; color: var(--primary); white-space: nowrap; }
    .spec-value { color: var(--text); text-align: right; }

    /* ---------- Drawing ---------- */
    .drawing { padding: 60px 0; background: #fff; }
    .drawing img { width: 100%; border-radius: var(--radius); box-shadow: var(--shadow); }

    /* ---------- Development boards ---------- */
    .boards { padding: 80px 0; background: var(--secondary); }
    .boards-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
      gap: 24px;
    }
    .board-card {
      text-align: center;
      padding: 32px 24px;
      background: #fff;
      border-radius: var(--radius);
      border: 1px solid var(--border);
      box-shadow: var(--shadow-sm);
      transition: var(--transition);
      position: relative;
    }
    .board-card:hover {
      transform: translateY(-4px);
      box-shadow: var(--shadow-hover);
      border-color: var(--primary-light);
    }
    .board-card img { width: 100%; max-width: 160px; height: auto; margin-bottom: 18px; }
    .board-card h4 { font-size: 1.05rem; font-weight: 600; color: var(--primary); margin-bottom: 8px; }
    .board-card p { font-size: 0.88rem; color: var(--text-light); margin-bottom: 16px; line-height: 1.6; }
    .board-link {
      display: inline-block;
      color: var(--primary);
      font-weight: 500;
      font-size: 0.9rem;
      text-decoration: none;
      transition: var(--transition);
    }
    .board-link:hover { color: var(--accent); transform: translateX(3px); }

    /* Featured ESP32E6-E01 board card */
    .board-card.featured {
      border: 2px solid var(--accent);
      box-shadow: 0 10px 30px rgba(255, 107, 53, 0.15);
      background: #FFFCFA;
    }
    .board-card.featured:hover {
      border-color: var(--accent);
      box-shadow: 0 14px 36px rgba(255, 107, 53, 0.25);
    }
    .board-card.featured h4 { color: var(--accent); }
    .board-card.featured .board-link { color: var(--accent); }
    .board-badge {
      position: absolute;
      top: -13px;
      left: 50%;
      transform: translateX(-50%);
      background: var(--accent);
      color: #fff;
      font-size: 0.68rem;
      font-weight: 700;
      letter-spacing: 0.4px;
      text-transform: uppercase;
      padding: 6px 14px;
      border-radius: 20px;
      white-space: nowrap;
      box-shadow: 0 3px 10px rgba(255, 107, 53, 0.4);
    }

    /* ---------- Toolkit ---------- */
    .toolkit { padding: 80px 0; background: #fff; }
    .toolkit-content { max-width: 800px; margin: 0 auto; text-align: center; }
    .toolkit-content > p { color: var(--text-light); font-size: 1.05rem; margin-bottom: 28px; }
    .toolkit-tags { display: flex; justify-content: center; flex-wrap: wrap; gap: 12px; margin-bottom: 32px; }
    .toolkit-tag {
      background: var(--secondary);
      color: var(--primary);
      padding: 8px 20px;
      border-radius: 40px;
      font-size: 0.85rem;
      font-weight: 500;
      border: 1px solid var(--border);
    }

    /* ---------- Ready-to-Display Solution ---------- */
    .solution { padding: 80px 0; background: var(--secondary); }
    .solution-card {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 48px;
      align-items: center;
      max-width: 1040px;
      margin: 0 auto;
      background: #fff;
      border-radius: var(--radius);
      padding: 40px;
      box-shadow: var(--shadow);
      border: 1px solid var(--border);
      transition: var(--transition);
    }
    .solution-card:hover { box-shadow: var(--shadow-hover); }
    .solution-image img {
      width: 100%;
      display: block;
      border-radius: var(--radius-sm);
      box-shadow: var(--shadow-sm);
    }
    .solution-text .solution-kicker {
      display: inline-block;
      color: var(--accent);
      font-size: 0.78rem;
      font-weight: 600;
      letter-spacing: 1.5px;
      text-transform: uppercase;
      margin-bottom: 12px;
    }
    .solution-model {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      background: rgba(42, 92, 170, 0.08);
      color: var(--primary);
      padding: 6px 16px;
      border-radius: 40px;
      font-size: 0.82rem;
      font-weight: 600;
      letter-spacing: 0.5px;
      margin-bottom: 16px;
    }
    .solution-text h3 {
      font-family: 'Montserrat', sans-serif;
      font-size: 1.5rem;
      font-weight: 700;
      color: var(--primary-dark);
      line-height: 1.35;
      letter-spacing: -0.02em;
      margin-bottom: 14px;
    }
    .solution-text > p {
      color: var(--text-light);
      font-size: 0.95rem;
      line-height: 1.75;
      margin-bottom: 22px;
    }
    .solution-tags {
      display: flex;
      flex-wrap: wrap;
      gap: 10px;
      margin-bottom: 28px;
    }
    .solution-tag {
      background: var(--secondary);
      color: var(--primary);
      padding: 7px 18px;
      border-radius: 40px;
      font-size: 0.82rem;
      font-weight: 500;
      border: 1px solid var(--border);
    }
    .solution-actions { display: flex; flex-wrap: wrap; gap: 14px; }

    /* ---------- Eco ---------- */
    .eco { padding: 80px 0; background: #fff; }
    .eco-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
      gap: 24px;
    }
    .eco-card {
      background: var(--secondary);
      text-align: center;
      padding: 36px 28px;
      border-radius: var(--radius);
      transition: var(--transition);
    }
    .eco-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-hover); }
    .eco-card img { width: 72px; height: 72px; margin-bottom: 18px; }
    .eco-card h3 { font-size: 1rem; font-weight: 600; color: var(--primary); margin-bottom: 10px; }
    .eco-card p { font-size: 0.88rem; color: var(--text-light); }

    /* ---------- Downloads ---------- */
    .downloads { padding: 80px 0; background: var(--secondary); }
    .download-warning {
      display: flex;
      align-items: flex-start;
      gap: 14px;
      max-width: 820px;
      margin: 0 auto 24px;
      background: var(--danger-bg);
      border: 2px solid var(--danger-border);
      border-left: 6px solid var(--danger);
      border-radius: var(--radius-sm);
      padding: 18px 22px;
      box-shadow: 0 4px 16px rgba(229, 57, 53, 0.08);
    }
    .download-warning svg {
      flex-shrink: 0;
      width: 22px;
      height: 22px;
      stroke: var(--danger);
      fill: none;
      stroke-width: 2.2;
      margin-top: 2px;
    }
    .download-warning strong {
      display: block;
      color: var(--danger);
      font-size: 0.95rem;
      font-weight: 700;
      margin-bottom: 4px;
    }
    .download-warning span {
      display: block;
      color: #8A2B2B;
      font-size: 0.88rem;
      line-height: 1.65;
    }
    .download-warning span em {
      font-style: normal;
      font-weight: 700;
      color: var(--danger);
    }
    .download-list { list-style: none; max-width: 820px; margin: 0 auto; }
    .download-item { margin-bottom: 10px; }
    .download-link {
      display: flex;
      align-items: center;
      gap: 12px;
      padding: 16px 24px;
      background: #fff;
      border: 1px solid var(--border);
      border-radius: var(--radius-sm);
      color: var(--primary);
      text-decoration: none;
      font-size: 0.92rem;
      transition: var(--transition);
    }
    .download-link:hover {
      background: var(--primary);
      color: #fff;
      border-color: var(--primary);
      transform: translateX(6px);
    }
    .file-type {
      background: var(--secondary);
      color: var(--text-light);
      font-size: 0.72rem;
      font-weight: 700;
      padding: 3px 10px;
      border-radius: 4px;
      flex-shrink: 0;
      letter-spacing: 0.5px;
    }
    .download-link:hover .file-type { background: rgba(255,255,255,0.2); color: #fff; }

    /* ---------- Related Products ---------- */
    .related { padding: 80px 0; background: #fff; }
    .related-grid {
      display: grid;
      grid-template-columns: repeat(5, 1fr);
      gap: 16px;
      justify-content: center;
    }
    .related-card {
      background: #fff;
      text-align: center;
      padding: 16px 12px 14px;
      border-radius: var(--radius-sm);
      box-shadow: var(--shadow-sm);
      border: 1px solid var(--border);
      transition: var(--transition);
      display: flex;
      flex-direction: column;
    }
    .related-card:hover {
      transform: translateY(-3px);
      box-shadow: var(--shadow-hover);
      border-color: var(--primary-light);
    }
    .related-thumb {
      width: 100%;
      aspect-ratio: 4 / 3;
      display: flex;
      align-items: center;
      justify-content: center;
      background: linear-gradient(135deg, #EEF2F7 0%, #E2E9F2 100%);
      border-radius: 8px;
      margin-bottom: 12px;
      color: var(--primary);
      font-family: 'Montserrat', sans-serif;
      font-weight: 700;
      font-size: 0.95rem;
      letter-spacing: -0.01em;
      position: relative;
      overflow: hidden;
    }
    .related-thumb img {
      width: 100%;
      height: 100%;
      object-fit: cover;
    }
    .related-thumb::after {
      content: '';
      position: absolute;
      bottom: 0;
      left: 0;
      right: 0;
      height: 3px;
      background: linear-gradient(90deg, var(--primary), var(--accent));
      opacity: 0.6;
    }
    .related-card h4 {
      font-size: 0.78rem;
      font-weight: 700;
      color: var(--primary-dark);
      margin-bottom: 3px;
      letter-spacing: 0.01em;
      word-break: break-all;
      line-height: 1.3;
    }
    .related-card .related-spec {
      font-size: 0.72rem;
      color: var(--text-light);
      margin-bottom: 10px;
      line-height: 1.4;
    }
    .related-card .related-link {
      color: var(--primary);
      font-weight: 500;
      font-size: 0.75rem;
      text-decoration: none;
      margin-top: auto;
      transition: var(--transition);
    }
    .related-card .related-link:hover { color: var(--accent); }
    .related-card .related-link::after {
      content: ' →';
      display: inline-block;
      transition: var(--transition);
    }
    .related-card .related-link:hover::after { transform: translateX(3px); }

    /* ---------- About ---------- */
    .about { padding: 80px 0; background: var(--secondary); text-align: center; }
    .about-content { max-width: 760px; margin: 0 auto; }
    .about-content p { color: var(--text-light); margin-bottom: 18px; font-size: 0.98rem; }
    .about-content a { color: var(--primary); text-decoration: none; font-weight: 500; }
    .about-content a:hover { text-decoration: underline; }
    .certifications {
      background: #fff;
      padding: 28px;
      border-radius: var(--radius);
      margin: 32px 0;
      display: flex;
      justify-content: center;
      flex-wrap: wrap;
      gap: 24px;
      box-shadow: var(--shadow-sm);
    }
    .cert-item { display: flex; align-items: center; gap: 8px; font-size: 0.9rem; color: var(--text-light); }
    .cert-item svg { width: 20px; height: 20px; stroke: var(--primary); fill: none; stroke-width: 2; }

    /* ---------- Responsive ---------- */
    @media (max-width: 1024px) {
      .hero-content { grid-template-columns: 1fr; gap: 48px; text-align: center; }
      .hero-text { max-width: 100%; margin: 0 auto; }
      .hero-actions { justify-content: center; }
      .hero-specs { justify-content: center; }
      .processing-compare { grid-template-columns: 1fr; }
      .processing-benefits { grid-template-columns: 1fr; }
      .processing-palette { grid-template-columns: 1fr; padding: 32px; }
      .processing-title { font-size: 1.8rem; }
      .solution-card { grid-template-columns: 1fr; gap: 32px; padding: 28px; }
      .related-grid { grid-template-columns: repeat(3, 1fr); }
    }
    @media (max-width: 768px) {
      .hero { padding: 56px 0 64px; }
      .hero-title { font-size: 2rem; }
      .section-title { font-size: 1.7rem; }
      .hero-specs { gap: 8px; }
      .hero-spec { font-size: 0.8rem; padding: 6px 14px; }
      .specs-grid { grid-template-columns: 1fr; }
      .spec-item { border-right: none; }
      .certifications { flex-direction: column; align-items: center; gap: 12px; }
      .processing { padding: 64px 0; }
      .processing-title { font-size: 1.6rem; }
      .processing-exclusive { flex-direction: column; align-items: flex-start; }
      .processing-warning { flex-direction: column; align-items: flex-start; }
      .download-warning { flex-direction: column; align-items: flex-start; }
      .solution { padding: 64px 0; }
      .solution-card { padding: 24px; }
      .solution-text h3 { font-size: 1.25rem; }
    }
    @media (max-width: 560px) {
      .related-grid { grid-template-columns: repeat(2, 1fr); gap: 12px; }
    }