:root {
      --primary: #1f7a8c;
      --primary-dark: #14515c;
      --accent: #f4a261;
      --bg: #f8fafc;
      --text-main: #111827;
      --text-muted: #6b7280;
      --border: #e5e7eb;
      --radius-lg: 16px;
      --radius-md: 10px;
      --shadow-soft: 0 18px 40px rgba(15, 23, 42, 0.09);
    }

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

    body {
      font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
      background-color: var(--bg);
      color: var(--text-main);
      line-height: 1.7;
      -webkit-font-smoothing: antialiased;
    }

    .page-wrapper {
      max-width: 1120px;
      margin: 0 auto;
      padding: 24px 16px 64px;
    }

    @media (min-width: 768px) {
      .page-wrapper {
        padding: 40px 24px 80px;
      }
    }

    .article-card {
      background: #ffffff;
      border-radius: 24px;
      box-shadow: var(--shadow-soft);
      padding: 24px 20px 32px;
    }

    @media (min-width: 768px) {
      .article-card {
        padding: 32px 40px 40px;
      }
    }

    .badge {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      padding: 4px 10px;
      border-radius: 999px;
      background: #ecfeff;
      color: #036672;
      font-size: 12px;
      font-weight: 600;
      letter-spacing: 0.04em;
      text-transform: uppercase;
      margin-bottom: 14px;
    }

    .badge-dot {
      width: 7px;
      height: 7px;
      border-radius: 999px;
      background: #0ea5e9;
    }

    h1 {
      font-size: 1.9rem;
      line-height: 1.25;
      margin-bottom: 10px;
    }

    @media (min-width: 768px) {
      h1 {
        font-size: 2.4rem;
      }
    }

    .subtitle {
      font-size: 0.98rem;
      color: var(--text-muted);
      max-width: 640px;
      margin-bottom: 18px;
    }

    .meta {
      display: flex;
      flex-wrap: wrap;
      gap: 12px;
      font-size: 0.82rem;
      color: var(--text-muted);
      margin-bottom: 24px;
    }

    .meta span {
      display: inline-flex;
      align-items: center;
      gap: 6px;
    }

    .hero-cta {
      display: flex;
      flex-direction: column;
      gap: 12px;
      margin: 18px 0 24px;
    }

    @media (min-width: 640px) {
      .hero-cta {
        flex-direction: row;
        align-items: center;
      }
    }

    .btn-primary {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 8px;
      padding: 12px 22px;
      border-radius: 999px;
      background: linear-gradient(135deg, var(--primary), var(--primary-dark));
      color: #ffffff;
      font-weight: 600;
      font-size: 0.98rem;
      text-decoration: none;
      border: none;
      cursor: pointer;
      box-shadow: 0 12px 30px rgba(15, 118, 110, 0.45);
      transition: transform 0.12s ease, box-shadow 0.12s ease, opacity 0.12s ease;
      white-space: nowrap;
    }

    .btn-primary:hover {
      transform: translateY(-1px);
      box-shadow: 0 18px 40px rgba(15, 118, 110, 0.6);
      opacity: 0.95;
    }

    .btn-primary span.arrow {
      font-size: 1.1rem;
    }

    .hero-note {
      font-size: 0.86rem;
      color: var(--text-muted);
    }

    .divider {
      border-top: 1px solid var(--border);
      margin: 18px 0 24px;
    }

    h2 {
      font-size: 1.35rem;
      margin: 20px 0 10px;
    }

    h3 {
      font-size: 1.1rem;
      margin: 16px 0 6px;
    }

    p {
      font-size: 0.97rem;
      margin-bottom: 10px;
    }

    ul, ol {
      margin: 8px 0 14px 20px;
      padding-left: 6px;
      font-size: 0.95rem;
    }

    li {
      margin-bottom: 6px;
    }

    strong {
      font-weight: 600;
    }

    .highlight-box {
      border-radius: var(--radius-lg);
      background: linear-gradient(135deg, #ecfeff, #f5f3ff);
      padding: 16px 18px;
      margin: 18px 0;
      border: 1px solid #e0f2fe;
      font-size: 0.94rem;
    }

    .highlight-box p {
      margin-bottom: 6px;
    }

    .pill-row {
      display: flex;
      flex-wrap: wrap;
      gap: 6px;
      margin-top: 8px;
    }

    .pill {
      font-size: 0.8rem;
      padding: 4px 9px;
      border-radius: 999px;
      background: #f3f4ff;
      color: #4b5563;
    }

    .two-column {
      display: grid;
      grid-template-columns: 1fr;
      gap: 18px;
      margin: 16px 0 20px;
    }

    @media (min-width: 900px) {
      .two-column {
        grid-template-columns: 3fr 2fr;
      }
    }

    .card {
      background: #f9fafb;
      border-radius: var(--radius-md);
      padding: 14px 16px;
      border: 1px solid #e5e7eb;
      font-size: 0.94rem;
    }

    .card h3 {
      margin-top: 0;
    }

    .stat-grid {
      display: grid;
      grid-template-columns: repeat(2, minmax(0, 1fr));
      gap: 10px;
      margin: 12px 0 4px;
      font-size: 0.9rem;
    }

    @media (min-width: 640px) {
      .stat-grid {
        grid-template-columns: repeat(3, minmax(0, 1fr));
      }
    }

    .stat-item {
      background: white;
      border-radius: 12px;
      padding: 8px 10px;
      border: 1px dashed #d1d5db;
      text-align: left;
    }

    .stat-label {
      font-size: 0.75rem;
      color: var(--text-muted);
      text-transform: uppercase;
      letter-spacing: 0.03em;
      margin-bottom: 2px;
    }

    .stat-value {
      font-weight: 600;
      font-size: 0.95rem;
    }

    .faq-section {
      margin-top: 28px;
      padding-top: 16px;
      border-top: 1px dashed var(--border);
    }

    .faq-item {
      margin-bottom: 16px;
    }

    .faq-question {
      font-weight: 600;
      font-size: 0.98rem;
    }

    .faq-answer {
      font-size: 0.94rem;
      color: var(--text-muted);
      margin-top: 4px;
    }

    .bottom-cta {
      margin-top: 28px;
      padding: 16px 18px;
      border-radius: var(--radius-lg);
      background: radial-gradient(circle at top left, #e0f2fe, #fef9c3);
      border: 1px solid #dbeafe;
      display: flex;
      flex-direction: column;
      gap: 10px;
    }

    @media (min-width: 640px) {
      .bottom-cta {
        flex-direction: row;
        align-items: center;
        justify-content: space-between;
      }
    }

    .bottom-cta-text {
      max-width: 520px;
    }

    .bottom-cta-title {
      font-size: 1.05rem;
      font-weight: 600;
      margin-bottom: 4px;
    }

    .bottom-cta-sub {
      font-size: 0.9rem;
      color: var(--text-muted);
    }

    .btn-secondary {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      padding: 10px 18px;
      border-radius: 999px;
      border: 1px solid var(--primary-dark);
      background: #ffffff;
      color: var(--primary-dark);
      font-size: 0.92rem;
      font-weight: 600;
      text-decoration: none;
      cursor: pointer;
      transition: background 0.12s ease, color 0.12s ease;
      white-space: nowrap;
      margin-top: 4px;
    }

    .btn-secondary:hover {
      background: var(--primary-dark);
      color: #ffffff;
    }

    .keyword-footer {
      margin-top: 20px;
      font-size: 0.8rem;
      color: var(--text-muted);
    }