/* --- Lantern.io Authentic Design System --- */
    @import url('https://fonts.googleapis.com/css2?family=Urbanist:ital,wght@0,400;0,500;0,600;0,700;0,800;0,900;1,400;1,600&family=Noto+Sans+SC:wght@400;500;600;700&display=swap');

    :root {
      --font-main: 'Urbanist', 'Noto Sans SC', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
      --bg-canvas: #FFFFFF;
      --bg-subtle: #F8FAFB;
      --bg-ice: #EFFDFF;
      --border-light: #EDEFEF;
      --border-focus: #006163;
      --color-deep-pine: #012D2D;
      --color-teal: #006163;
      --color-teal-hover: #007A7C;
      --color-teal-glow: rgba(0, 97, 99, 0.4);
      --color-pink-badge: #FF89C1;
      --color-pink-bg: #FFF0F6;
      --color-yellow-notice: #FFFCEA;
      --color-yellow-border: #FFEAA7;
      --color-text-title: #012D2D;
      --color-text-body: #2D3748;
      --color-text-muted: #616569;
      --shadow-sm: 0 1px 3px rgba(1, 45, 45, 0.04);
      --shadow-card: 0 4px 16px rgba(1, 45, 45, 0.05);
      --shadow-hover: 0 12px 30px rgba(1, 45, 45, 0.09);
      --radius-pill: 9999px;
      --radius-sm: 12px;
      --radius-card: 16px;
      --radius-lg: 24px;
      --radius-xl: 32px;
    }

    * { box-sizing: border-box; margin: 0; padding: 0; }
    html { scroll-behavior: smooth; }
    body {
      font-family: var(--font-main);
      background-color: var(--bg-canvas);
      color: var(--color-text-body);
      line-height: 1.6;
      -webkit-font-smoothing: antialiased;
      -moz-osx-font-smoothing: grayscale;
    }

    a { color: inherit; text-decoration: none; transition: all 0.2s ease; }
    img { max-width: 100%; height: auto; display: block; }

    .container {
      width: 100%;
      max-width: 1240px;
      margin: 0 auto;
      padding: 0 24px;
    }

    /* Top Notice Banner */
    .top-notice-bar {
      background: var(--color-yellow-notice);
      border-bottom: 1px solid var(--color-yellow-border);
      padding: 10px 0;
      font-size: 13.5px;
      color: #5D4A1B;
      text-align: center;
    }
    .notice-inner {
      display: flex;
      align-items: center;
      justify-content: center;
      gap: 10px;
      flex-wrap: wrap;
    }
    .notice-link {
      color: var(--color-teal);
      font-weight: 700;
      text-decoration: underline;
      margin-left: 6px;
    }

    /* Site Header */
    .site-header {
      position: sticky;
      top: 0;
      z-index: 1000;
      background: rgba(255, 255, 255, 0.96);
      backdrop-filter: blur(12px);
      -webkit-backdrop-filter: blur(12px);
      border-bottom: 1px solid var(--border-light);
      transition: all 0.2s ease;
    }
    .header-inner {
      display: flex;
      align-items: center;
      justify-content: space-between;
      height: 76px;
    }
    .brand-logo {
      display: flex;
      align-items: center;
      gap: 14px;
    }
    .brand-logo:hover { opacity: 0.9; }
    .logo-img {
      width: 40px;
      height: 40px;
      border-radius: 10px;
    }
    .brand-title {
      font-size: 22px;
      font-weight: 900;
      letter-spacing: -0.02em;
      color: var(--color-deep-pine);
      display: block;
      line-height: 1.1;
    }
    .brand-sub {
      font-size: 12px;
      font-weight: 600;
      color: var(--color-teal);
      letter-spacing: 0.02em;
    }
    .main-nav {
      display: flex;
      align-items: center;
      gap: 8px;
    }
    .nav-link {
      font-size: 15px;
      font-weight: 600;
      color: var(--color-deep-pine);
      padding: 8px 16px;
      border-radius: var(--radius-pill);
      transition: all 0.2s;
    }
    .nav-link:hover {
      background: var(--bg-ice);
      color: var(--color-teal);
    }
    .nav-link.active {
      background: var(--bg-ice);
      color: var(--color-teal);
      font-weight: 700;
    }
    .header-actions {
      display: flex;
      align-items: center;
      gap: 14px;
    }
    .status-badge {
      display: flex;
      align-items: center;
      gap: 7px;
      font-size: 13px;
      font-weight: 600;
      color: var(--color-deep-pine);
      background: var(--bg-subtle);
      border: 1px solid var(--border-light);
      padding: 6px 14px;
      border-radius: var(--radius-pill);
    }
    .pulse-dot {
      width: 8px;
      height: 8px;
      border-radius: 50%;
      background: #10B981;
      box-shadow: 0 0 0 0 rgba(16, 185, 129, 0.7);
      animation: pulseGreen 2s infinite;
    }
    @keyframes pulseGreen {
      0% { transform: scale(0.95); box-shadow: 0 0 0 0 rgba(16, 185, 129, 0.7); }
      70% { transform: scale(1); box-shadow: 0 0 0 6px rgba(16, 185, 129, 0); }
      100% { transform: scale(0.95); box-shadow: 0 0 0 0 rgba(16, 185, 129, 0); }
    }

    /* Buttons */
    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 8px;
      font-family: var(--font-main);
      font-weight: 700;
      font-size: 15px;
      padding: 0 28px;
      height: 52px;
      border-radius: var(--radius-pill);
      cursor: pointer;
      border: none;
      transition: all 0.2s cubic-bezier(0.16, 1, 0.3, 1);
      text-align: center;
      white-space: nowrap;
    }
    .btn-teal-pill {
      background-color: var(--color-teal);
      color: #FFFFFF;
      box-shadow: 0 2px 6px rgba(0, 97, 99, 0.2);
    }
    .btn-teal-pill:hover {
      background-color: var(--color-teal-hover);
      box-shadow: 0 6px 18px rgba(0, 97, 99, 0.35);
      transform: translateY(-1px);
      color: #FFFFFF;
    }
    .btn-dark-pill {
      background-color: var(--color-deep-pine);
      color: #FFFFFF;
    }
    .btn-dark-pill:hover {
      background-color: var(--color-teal);
      box-shadow: 0 6px 20px rgba(1, 45, 45, 0.25);
      transform: translateY(-1px);
      color: #FFFFFF;
    }
    .btn-outline-pill {
      background-color: #FFFFFF;
      border: 1.5px solid #CFD5D8;
      color: var(--color-deep-pine);
    }
    .btn-outline-pill:hover {
      border-color: var(--color-teal);
      color: var(--color-teal);
      background-color: var(--bg-ice);
    }

    /* Typography & Headers */
    .sec-badge {
      display: inline-block;
      font-size: 13px;
      font-weight: 800;
      color: var(--color-teal);
      letter-spacing: 0.08em;
      text-transform: uppercase;
      margin-bottom: 12px;
    }
    .sec-badge-pink {
      display: inline-block;
      font-size: 12px;
      font-weight: 800;
      background: var(--color-pink-bg);
      color: #D61F69;
      border: 1px solid #FCCEE2;
      padding: 4px 14px;
      border-radius: var(--radius-pill);
      letter-spacing: 0.05em;
      text-transform: uppercase;
      margin-bottom: 12px;
    }
    .sec-h1 {
      font-size: 52px;
      font-weight: 900;
      line-height: 1.12;
      color: var(--color-deep-pine);
      letter-spacing: -0.03em;
      margin-bottom: 18px;
    }
    .sec-h2 {
      font-size: 38px;
      font-weight: 800;
      line-height: 1.2;
      color: var(--color-deep-pine);
      letter-spacing: -0.025em;
      margin-bottom: 16px;
    }
    .sec-p {
      font-size: 18px;
      color: var(--color-text-muted);
      line-height: 1.6;
      max-width: 680px;
    }
    .text-center { text-align: center; }
    .mx-auto { margin-left: auto; margin-right: auto; }

    /* Sections */
    .section {
      padding: 80px 0;
      position: relative;
    }
    .section-head {
      margin-bottom: 48px;
    }

    /* Bento Grid */
    .bento-grid {
      display: grid;
      grid-template-columns: repeat(12, 1fr);
      gap: 24px;
    }
    .bento-card {
      background: #FFFFFF;
      border: 1px solid var(--border-light);
      border-radius: var(--radius-card);
      padding: 36px 32px;
      transition: all 0.25s ease;
      position: relative;
    }
    .bento-card:hover {
      box-shadow: var(--shadow-hover);
      border-color: #D5F6FA;
      transform: translateY(-2px);
    }
    .bento-card-subtle {
      background: var(--bg-subtle);
    }
    .bento-card-ice {
      background: var(--bg-ice);
      border-color: #D5F6FA;
    }

    /* Download 5-Card Grid (Exact match to lantern.io) */
    .download-5grid {
      display: grid;
      grid-template-columns: repeat(5, 1fr);
      gap: 20px;
      margin-top: 36px;
    }
    .plat-item-card {
      background: var(--bg-subtle);
      border: 1px solid var(--border-light);
      border-radius: 16px;
      padding: 32px 18px 24px;
      display: flex;
      flex-direction: column;
      align-items: center;
      text-align: center;
      transition: all 0.25s cubic-bezier(0.16, 1, 0.3, 1);
    }
    .plat-item-card:hover {
      background: #FFFFFF;
      border-color: var(--color-teal);
      box-shadow: var(--shadow-hover);
      transform: translateY(-3px);
    }
    .plat-item-card svg {
      width: 48px;
      height: 48px;
      fill: var(--color-deep-pine);
      margin-bottom: 16px;
      transition: transform 0.2s ease;
    }
    .plat-item-card:hover svg {
      transform: scale(1.08);
    }
    .plat-title {
      font-size: 19px;
      font-weight: 700;
      color: var(--color-deep-pine);
      margin-bottom: 4px;
      letter-spacing: -0.01em;
    }
    .plat-ver {
      font-size: 13.5px;
      color: var(--color-text-muted);
      margin-bottom: 24px;
      min-height: 20px;
    }
    .plat-btn-wrap {
      width: 100%;
      margin-top: auto;
    }
    .plat-btn {
      width: 100%;
      height: 50px;
      border-radius: var(--radius-pill);
      font-size: 14.5px;
      font-weight: 700;
      display: flex;
      align-items: center;
      justify-content: center;
      gap: 6px;
      transition: all 0.2s;
    }
    .plat-btn-primary {
      background: var(--color-deep-pine);
      color: #FFFFFF;
    }
    .plat-item-card:hover .plat-btn-primary {
      background: var(--color-teal);
      box-shadow: 0 4px 14px var(--color-teal-glow);
    }
    .plat-btn-outline {
      background: #FFFFFF;
      border: 1px solid #CFD5D8;
      color: var(--color-deep-pine);
    }
    .plat-item-card:hover .plat-btn-outline {
      border-color: var(--color-teal);
      color: var(--color-teal);
      background: var(--bg-ice);
    }
    .plat-sublinks {
      font-size: 12.5px;
      color: var(--color-text-muted);
      margin-top: 14px;
      line-height: 1.4;
    }
    .plat-sublinks a {
      color: var(--color-teal);
      text-decoration: underline;
      font-weight: 600;
    }

    /* Alternative Download Methods */
    .alt-methods-card {
      background: #FFFFFF;
      border: 1px solid var(--border-light);
      border-radius: var(--radius-lg);
      padding: 40px;
      margin-top: 48px;
    }
    .alt-row {
      display: flex;
      align-items: center;
      justify-content: space-between;
      padding: 20px 0;
      border-bottom: 1px solid var(--border-light);
    }
    .alt-row:last-child { border-bottom: none; }
    .alt-left {
      display: flex;
      align-items: center;
      gap: 16px;
    }
    .alt-icon-box {
      width: 44px;
      height: 44px;
      border-radius: 12px;
      background: var(--bg-subtle);
      border: 1px solid var(--border-light);
      display: flex;
      align-items: center;
      justify-content: center;
    }
    .alt-text-title {
      font-size: 16px;
      font-weight: 700;
      color: var(--color-deep-pine);
    }
    .alt-text-desc {
      font-size: 14px;
      color: var(--color-text-muted);
    }

    /* Footer */
    .site-footer {
      background: var(--color-deep-pine);
      color: #E2E8F0;
      padding: 80px 0 40px;
      margin-top: 100px;
    }
    .footer-top {
      display: grid;
      grid-template-columns: 2fr repeat(3, 1fr);
      gap: 48px;
      padding-bottom: 60px;
      border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    }
    .footer-brand-title {
      font-size: 24px;
      font-weight: 900;
      color: #FFFFFF;
      margin-bottom: 12px;
      letter-spacing: -0.02em;
    }
    .footer-brand-desc {
      font-size: 14px;
      color: #A3B8B8;
      line-height: 1.7;
      max-width: 320px;
      margin-bottom: 24px;
    }
    .footer-col-h4 {
      font-size: 16px;
      font-weight: 700;
      color: #FFFFFF;
      margin-bottom: 20px;
      letter-spacing: 0.02em;
    }
    .footer-links {
      list-style: none;
      display: flex;
      flex-direction: column;
      gap: 12px;
    }
    .footer-links a {
      color: #A3B8B8;
      font-size: 14.5px;
      transition: color 0.2s;
    }
    .footer-links a:hover {
      color: #5CE1E6;
    }
    .footer-bottom {
      padding-top: 36px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      font-size: 13.5px;
      color: #718096;
      flex-wrap: wrap;
      gap: 16px;
    }
    .footer-badges {
      display: flex;
      align-items: center;
      gap: 16px;
    }
    .audit-badge {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      font-size: 12px;
      color: #A3B8B8;
      background: rgba(255, 255, 255, 0.05);
      padding: 5px 12px;
      border-radius: var(--radius-pill);
      border: 1px solid rgba(255, 255, 255, 0.1);
    }

    /* Ecosystem Cross-linking Footer Box */
    .eco-box {
      margin-top: 50px;
      padding: 30px;
      background: rgba(255, 255, 255, 0.04);
      border: 1px solid rgba(255, 255, 255, 0.08);
      border-radius: var(--radius-card);
    }
    .eco-h4 {
      color: #FFFFFF;
      font-size: 15px;
      font-weight: 700;
      margin-bottom: 16px;
      display: flex;
      align-items: center;
      gap: 8px;
    }
    .eco-grid {
      display: grid;
      grid-template-columns: repeat(5, 1fr);
      gap: 16px;
    }
    .eco-card {
      background: rgba(255, 255, 255, 0.05);
      border: 1px solid rgba(255, 255, 255, 0.08);
      border-radius: 12px;
      padding: 14px 16px;
      transition: all 0.2s;
    }
    .eco-card:hover {
      background: rgba(255, 255, 255, 0.1);
      border-color: #5CE1E6;
      transform: translateY(-2px);
    }
    .eco-card-title {
      font-size: 13.5px;
      font-weight: 700;
      color: #FFFFFF;
      margin-bottom: 4px;
    }
    .eco-card-desc {
      font-size: 12px;
      color: #A3B8B8;
    }

    /* Responsive */
    @media (max-width: 1024px) {
      .download-5grid { grid-template-columns: repeat(3, 1fr); }
      .eco-grid { grid-template-columns: repeat(2, 1fr); }
      .footer-top { grid-template-columns: 1fr 1fr; }
    }
    @media (max-width: 768px) {
      .sec-h1 { font-size: 38px; }
      .sec-h2 { font-size: 28px; }
      .download-5grid { grid-template-columns: 1fr; }
      .eco-grid { grid-template-columns: 1fr; }
      .main-nav { display: none; }
      .footer-top { grid-template-columns: 1fr; }
      .alt-row { flex-direction: column; align-items: flex-start; gap: 12px; }
    }
    
    /* --- Specific Layout: Site 1 Asymmetric Split Hero --- */
    .hero-split-wrap {
      padding: 80px 0 60px;
      display: grid;
      grid-template-columns: 1.15fr 0.85fr;
      gap: 48px;
      align-items: center;
      border-bottom: 1px solid var(--border-light);
    }
    .client-card-mockup {
      background: #FFFFFF;
      border: 1px solid var(--border-light);
      border-radius: var(--radius-xl);
      padding: 36px 32px;
      box-shadow: 0 16px 40px rgba(1, 45, 45, 0.08);
      position: relative;
    }
    .client-header {
      display: flex;
      justify-content: space-between;
      align-items: center;
      padding-bottom: 20px;
      border-bottom: 1px solid var(--border-light);
      margin-bottom: 24px;
    }
    .ping-row {
      display: flex;
      justify-content: space-between;
      align-items: center;
      background: var(--bg-subtle);
      padding: 14px 18px;
      border-radius: 12px;
      margin-bottom: 12px;
    }
    .comp-table {
      width: 100%;
      border-collapse: collapse;
      margin-top: 32px;
      background: #FFFFFF;
      border-radius: var(--radius-card);
      overflow: hidden;
      border: 1px solid var(--border-light);
    }
    .comp-table th, .comp-table td {
      padding: 20px 24px;
      text-align: left;
      border-bottom: 1px solid var(--border-light);
    }
    .comp-table th {
      background: var(--bg-subtle);
      font-weight: 800;
      color: var(--color-deep-pine);
      font-size: 15px;
    }
    .comp-table tr:last-child td { border-bottom: none; }
    .comp-pro {
      color: var(--color-teal);
      font-weight: 800;
    }
    @media (max-width: 960px) {
      .hero-split-wrap { grid-template-columns: 1fr; }
    }