:root {
      --primary: #2563eb;
      --primary-dark: #1d4ed8;
      --bg: #f5f7fb;
      --text-main: #111827;
      --text-muted: #4b5563;
      --card-bg: #ffffff;
      --accent-soft: #e0ecff;
      --radius-lg: 18px;
      --radius-md: 12px;
      --shadow-soft: 0 18px 40px rgba(15, 23, 42, 0.1);
    }

    * {
      box-sizing: border-box;
    }

    body {
      margin: 0;
      font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Arial, sans-serif;
      background: radial-gradient(circle at top, #e0ecff 0, #f5f7fb 40%, #f5f7fb 100%);
      color: var(--text-main);
      line-height: 1.6;
    }

    .page-wrapper {
      max-width: 1100px;
      margin: 0 auto;
      padding: 20px 16px 60px;
    }

    header.blog-header {
      margin: 20px 0 30px;
      text-align: left;
    }

    header.blog-header h1 {
      font-size: 2rem;
      margin: 0 0 10px;
      letter-spacing: -0.03em;
    }

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

    .subtitle {
      font-size: 0.95rem;
      color: var(--text-muted);
      max-width: 640px;
    }

    .meta {
      display: flex;
      flex-wrap: wrap;
      gap: 10px;
      margin-top: 10px;
      font-size: 0.85rem;
      color: #6b7280;
    }

    .meta span {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      padding: 3px 10px;
      border-radius: 999px;
      background: rgba(255, 255, 255, 0.7);
      border: 1px solid #e5e7eb;
    }

    .blog-layout {
      display: grid;
      grid-template-columns: minmax(0, 2fr);
      gap: 24px;
    }

    @media (min-width: 960px) {
      .blog-layout {
        grid-template-columns: minmax(0, 3fr) minmax(280px, 1.2fr);
        align-items: flex-start;
      }
    }

    .blog-main {
      background: var(--card-bg);
      border-radius: var(--radius-lg);
      box-shadow: var(--shadow-soft);
      padding: 20px 18px 28px;
      backdrop-filter: blur(12px);
    }

    @media (min-width: 768px) {
      .blog-main {
        padding: 26px 26px 34px;
      }
    }

    .hero-image {
      border-radius: var(--radius-md);
      overflow: hidden;
      margin-bottom: 20px;
      border: 1px solid #e5e7eb;
      background: #f9fafb;
    }

    .hero-image img {
      display: block;
      width: 100%;
      height: auto;
    }

    .hero-caption {
      font-size: 0.8rem;
      color: #6b7280;
      padding: 8px 10px 10px;
      background: #f9fafb;
    }

    .chip-row {
      display: flex;
      flex-wrap: wrap;
      gap: 8px;
      margin-bottom: 16px;
    }

    .chip {
      font-size: 0.75rem;
      padding: 4px 10px;
      border-radius: 999px;
      background: var(--accent-soft);
      color: var(--primary-dark);
      border: 1px solid rgba(37, 99, 235, 0.2);
    }

    h2 {
      font-size: 1.35rem;
      margin: 22px 0 8px;
    }

    h3 {
      font-size: 1.05rem;
      margin: 18px 0 6px;
    }

    p {
      margin: 6px 0 10px;
      font-size: 0.96rem;
      color: var(--text-muted);
    }

    strong {
      color: var(--text-main);
    }

    ul {
      padding-left: 18px;
      margin: 4px 0 10px;
    }

    li {
      margin: 3px 0;
      font-size: 0.95rem;
      color: var(--text-muted);
    }

    .highlight-box {
      background: #f9fafb;
      border-radius: var(--radius-md);
      border: 1px dashed #d1d5db;
      padding: 12px 12px 10px;
      margin: 14px 0;
      font-size: 0.9rem;
      color: #374151;
    }

    .two-col-section {
      display: grid;
      grid-template-columns: minmax(0, 1.1fr);
      gap: 18px;
      margin: 18px 0 4px;
    }

    @media (min-width: 768px) {
      .two-col-section {
        grid-template-columns: minmax(0, 1.2fr) minmax(0, 1.1fr);
      }
    }

    .card-soft {
      background: #f9fafb;
      border-radius: var(--radius-md);
      padding: 14px 14px 12px;
      border: 1px solid #e5e7eb;
      font-size: 0.93rem;
    }

    .inline-tag {
      display: inline-flex;
      align-items: center;
      padding: 2px 8px;
      border-radius: 999px;
      font-size: 0.75rem;
      background: #eef2ff;
      color: #3730a3;
      margin-left: 4px;
    }

    .image-block {
      border-radius: var(--radius-md);
      overflow: hidden;
      border: 1px solid #e5e7eb;
      background: #f3f4f6;
      margin: 10px 0 4px;
    }

    .image-block img {
      display: block;
      width: 100%;
      height: auto;
    }

    .image-block-caption {
      font-size: 0.8rem;
      color: #6b7280;
      padding: 7px 10px 9px;
      background: #f9fafb;
    }

    /* Sidebar */
    .sidebar {
      display: flex;
      flex-direction: column;
      gap: 18px;
    }

    .sidebar-card {
      background: rgba(255, 255, 255, 0.96);
      border-radius: var(--radius-lg);
      padding: 18px 16px 20px;
      box-shadow: 0 12px 28px rgba(15, 23, 42, 0.16);
      border: 1px solid rgba(255, 255, 255, 0.9);
    }

    .sidebar-card h3 {
      margin-top: 0;
      margin-bottom: 6px;
      font-size: 1.05rem;
    }

    .sidebar-card p {
      font-size: 0.9rem;
      margin-bottom: 12px;
    }

    .cta-button {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      padding: 10px 18px;
      border-radius: 999px;
      border: none;
      background: linear-gradient(135deg, var(--primary), var(--primary-dark));
      color: #ffffff;
      font-size: 0.95rem;
      font-weight: 600;
      text-decoration: none;
      cursor: pointer;
      box-shadow: 0 12px 24px rgba(37, 99, 235, 0.45);
      transition: transform 0.12s ease, box-shadow 0.12s ease;
      width: 100%;
      text-align: center;
    }

    .cta-button:hover {
      transform: translateY(-1px);
      box-shadow: 0 16px 32px rgba(37, 99, 235, 0.55);
    }

    .cta-button span {
      margin-left: 6px;
      font-size: 1.1rem;
    }

    .bullet-badge-list {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
      gap: 6px;
      margin-top: 6px;
    }

    .bullet-badge {
      font-size: 0.82rem;
      padding: 6px 9px;
      border-radius: 999px;
      background: #eff6ff;
      color: #1d4ed8;
      border: 1px solid #bfdbfe;
    }

    .small-note {
      font-size: 0.78rem;
      color: #9ca3af;
      margin-top: 10px;
    }

    footer.blog-footer {
      margin-top: 34px;
      font-size: 0.85rem;
      color: #6b7280;
      text-align: center;
    }