:root {
      --bg: #f7f4ef;
      --paper: #fffdf9;
      --ink: #1f2933;
      --muted: #6b7280;
      --line: #e7dfd3;
      --accent: #9b7b59;
      --accent-dark: #7b6045;
      --soft: #efe6db;
      --shadow: 0 18px 40px rgba(50, 40, 30, 0.08);
      --radius: 24px;
      --max: 1100px;
    }

    * {
      box-sizing: border-box;
    }

    html {
      scroll-behavior: smooth;
    }

    body {
      margin: 0;
      font-family: Arial, Helvetica, sans-serif;
      background: var(--bg);
      color: var(--ink);
      line-height: 1.75;
    }

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

    a {
      color: var(--accent-dark);
      text-decoration: none;
      font-weight: 700;
    }

    a:hover {
      text-decoration: underline;
    }

    .wrap {
      width: 100%;
      max-width: var(--max);
      margin: 0 auto;
      padding: 0 22px;
    }

    .topbar {
      padding: 18px 0;
      border-bottom: 1px solid rgba(0, 0, 0, 0.05);
      background: rgba(255, 253, 249, 0.85);
      backdrop-filter: blur(6px);
      position: sticky;
      top: 0;
      z-index: 20;
    }

    .topbar-inner {
      display: flex;
      justify-content: space-between;
      align-items: center;
      gap: 20px;
    }

    .brand {
      font-size: 14px;
      letter-spacing: 0.08em;
      text-transform: uppercase;
      color: var(--muted);
      font-weight: 700;
    }

    .top-links {
      display: flex;
      gap: 18px;
      flex-wrap: wrap;
    }

    .top-links a {
      font-size: 14px;
      color: var(--muted);
      font-weight: 600;
    }

    .hero {
      padding: 54px 0 26px;
    }

    .eyebrow {
      display: inline-block;
      padding: 8px 14px;
      background: var(--soft);
      color: var(--accent-dark);
      border-radius: 999px;
      font-size: 13px;
      font-weight: 800;
      letter-spacing: 0.03em;
      margin-bottom: 18px;
    }

    h1 {
      font-size: 54px;
      line-height: 1.08;
      margin: 0 0 20px;
      letter-spacing: -1.2px;
      color: #17212b;
      max-width: 860px;
    }

    .lead {
      max-width: 780px;
      font-size: 19px;
      color: #495463;
      margin: 0 0 28px;
    }

    .meta-row {
      display: flex;
      gap: 12px;
      flex-wrap: wrap;
      color: var(--muted);
      font-size: 14px;
      margin-bottom: 34px;
    }

    .meta-pill {
      padding: 8px 12px;
      border: 1px solid var(--line);
      border-radius: 999px;
      background: rgba(255, 255, 255, 0.65);
    }

    .hero-image {
      margin-top: 12px;
      background: var(--paper);
      border: 1px solid var(--line);
      border-radius: 30px;
      overflow: hidden;
      box-shadow: var(--shadow);
    }

    .hero-image img {
      width: 100%;
      aspect-ratio: 1200 / 900;
      object-fit: cover;
    }

    .hero-caption {
      padding: 14px 18px 18px;
      font-size: 13px;
      color: var(--muted);
    }

    .content {
      display: grid;
      grid-template-columns: 240px minmax(0, 1fr);
      gap: 44px;
      padding: 40px 0 80px;
    }

    .toc {
      position: sticky;
      top: 86px;
      align-self: start;
      background: var(--paper);
      border: 1px solid var(--line);
      border-radius: 20px;
      padding: 20px;
      box-shadow: 0 10px 24px rgba(0, 0, 0, 0.04);
    }

    .toc h3 {
      margin: 0 0 12px;
      font-size: 16px;
      color: #25303b;
    }

    .toc a {
      display: block;
      padding: 9px 0;
      border-bottom: 1px dashed #e6ddd0;
      font-size: 14px;
      color: #5b6572;
      font-weight: 600;
    }

    .toc a:last-child {
      border-bottom: none;
    }

    .article {
      min-width: 0;
    }

    .article-card {
      background: var(--paper);
      border: 1px solid var(--line);
      border-radius: 28px;
      padding: 34px;
      box-shadow: var(--shadow);
    }

    .section {
      margin-bottom: 42px;
      scroll-margin-top: 100px;
    }

    .section:last-child {
      margin-bottom: 0;
    }

    .section h2 {
      font-size: 34px;
      line-height: 1.2;
      margin: 0 0 14px;
      color: #1b2a37;
      letter-spacing: -0.5px;
    }

    .section h3 {
      font-size: 22px;
      line-height: 1.3;
      margin: 24px 0 10px;
      color: #253443;
    }

    .section p {
      font-size: 17px;
      color: #394452;
      margin: 0 0 16px;
    }

    .pull-quote {
      margin: 26px 0;
      padding: 26px 28px;
      border-left: 4px solid var(--accent);
      background: linear-gradient(180deg, #fcf8f2 0%, #f6efe5 100%);
      border-radius: 18px;
    }

    .pull-quote p {
      margin: 0;
      font-size: 18px;
      color: #4c4036;
    }

    .comparison {
      margin: 22px 0;
      overflow: hidden;
      border: 1px solid var(--line);
      border-radius: 18px;
      background: #fff;
    }

    .comparison table {
      width: 100%;
      border-collapse: collapse;
    }

    .comparison th,
    .comparison td {
      padding: 16px;
      text-align: left;
      vertical-align: top;
      border-bottom: 1px solid #eee5d9;
      font-size: 15px;
    }

    .comparison th {
      background: #f7f0e7;
      color: #3b3028;
      font-size: 14px;
      text-transform: uppercase;
      letter-spacing: 0.04em;
    }

    .comparison tr:last-child td {
      border-bottom: none;
    }

    .checklist {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 14px 24px;
      margin-top: 18px;
    }

    .item {
      background: #fcfaf6;
      border: 1px solid #ede3d6;
      border-radius: 16px;
      padding: 16px 16px 16px 18px;
    }

    .item strong {
      display: block;
      margin-bottom: 6px;
      color: #2d3a46;
      font-size: 16px;
    }

    .item p {
      margin: 0;
      font-size: 15px;
      color: #55606d;
    }

    .image-panel {
      margin: 26px 0 6px;
      background: #fff;
      border: 1px solid var(--line);
      border-radius: 24px;
      overflow: hidden;
      box-shadow: 0 12px 24px rgba(0, 0, 0, 0.04);
    }

    .image-panel img {
      width: 100%;
      aspect-ratio: 1448 / 1086;
      object-fit: cover;
    }

    .image-panel .note {
      padding: 14px 18px 18px;
      font-size: 13px;
      color: var(--muted);
    }

    .split-note {
      display: grid;
      grid-template-columns: 1.1fr 0.9fr;
      gap: 24px;
      align-items: start;
      margin-top: 26px;
      padding: 26px;
      background: #f8f3ec;
      border: 1px solid #eadfce;
      border-radius: 22px;
    }

    .split-note h3 {
      margin-top: 0;
    }

    .mini-box {
      background: #fffdf9;
      border: 1px solid #e8decf;
      border-radius: 18px;
      padding: 18px;
    }

    .mini-box ul {
      margin: 0;
      padding-left: 18px;
    }

    .mini-box li {
      margin-bottom: 8px;
      color: #4d5866;
      font-size: 15px;
    }

    .faq {
      display: grid;
      gap: 14px;
    }

    .faq-item {
      border: 1px solid #e8decf;
      border-radius: 18px;
      background: #fff;
      padding: 20px;
    }

    .faq-item h3 {
      margin: 0 0 8px;
      font-size: 18px;
    }

    .faq-item p {
      margin: 0;
      font-size: 15.5px;
      color: #56616d;
    }

    .cta {
      margin-top: 30px;
      padding: 30px;
      background: #1f2d3a;
      color: #fff;
      border-radius: 24px;
    }

    .cta h2 {
      margin: 0 0 10px;
      color: #fff;
      font-size: 30px;
    }

    .cta p {
      color: #dde5eb;
      margin: 0 0 18px;
      font-size: 16px;
    }

    .cta a.button {
      display: inline-block;
      padding: 13px 18px;
      background: #fff;
      color: #1f2d3a;
      border-radius: 12px;
      font-weight: 800;
    }

    .summary {
      margin-top: 28px;
      padding-top: 24px;
      border-top: 1px solid #ebdfd0;
    }

    .summary p {
      margin: 0;
      font-size: 16px;
    }

    @media (max-width: 960px) {
      h1 {
        font-size: 42px;
      }

      .content {
        grid-template-columns: 1fr;
      }

      .toc {
        position: static;
      }

      .checklist,
      .split-note {
        grid-template-columns: 1fr;
      }
    }

    @media (max-width: 640px) {
      .wrap {
        padding: 0 16px;
      }

      .hero {
        padding: 36px 0 18px;
      }

      h1 {
        font-size: 34px;
      }

      .lead {
        font-size: 17px;
      }

      .article-card {
        padding: 22px;
      }

      .section h2 {
        font-size: 28px;
      }

      .comparison {
        overflow-x: auto;
      }

      .comparison table {
        min-width: 700px;
      }

      .cta {
        padding: 22px;
      }
    }