/* roulang page: index */
:root {
      color-scheme: light;
      --ink: #252624;
      --ink-soft: #454642;
      --muted: #777873;
      --paper: #f7f6f3;
      --surface: #fff;
      --surface-alt: #efeee9;
      --line: #deded8;
      --line-strong: #c9c9c1;
      --accent: #b94437;
      --accent-dark: #913328;
      --accent-pale: #f4e8e4;
      --olive: #70775c;
      --radius: 6px;
      --radius-lg: 8px;
      --shadow: 0 12px 28px rgba(36, 37, 33, .08);
      --container: 1160px;
    }
    *, *::before, *::after { box-sizing: border-box; }
    html { scroll-behavior: smooth; scroll-padding-top: 88px; }
    body {
      margin: 0;
      background: var(--paper);
      color: var(--ink);
      font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans CJK SC", system-ui, sans-serif;
      font-size: 15px;
      line-height: 1.75;
      -webkit-font-smoothing: antialiased;
    }
    img { display: block; max-width: 100%; }
    a { color: inherit; text-decoration: none; }
    button, input { font: inherit; }
    button { color: inherit; }
    a:focus-visible, button:focus-visible, input:focus-visible, summary:focus-visible {
      outline: 3px solid rgba(185, 68, 55, .42);
      outline-offset: 3px;
    }
    .container { width: min(var(--container), calc(100% - 48px)); margin-inline: auto; }
    .site-header {
      position: sticky;
      z-index: 20;
      top: 0;
      background: rgba(247, 246, 243, .96);
      border-bottom: 1px solid var(--line);
      backdrop-filter: blur(12px);
    }
    .header-inner { min-height: 76px; display: flex; align-items: center; gap: 36px; }
    .brand {
      display: inline-flex;
      align-items: center;
      gap: 11px;
      flex: 0 0 auto;
      font-size: 18px;
      font-weight: 800;
      letter-spacing: 0;
      line-height: 1.2;
    }
    .brand-mark {
      width: 30px; height: 30px; display: grid; place-items: center;
      background: var(--accent); color: white; border-radius: 4px;
      font-size: 13px; font-weight: 800;
    }
    .brand-text { max-width: 260px; }
    .main-nav { display: flex; align-items: center; gap: 26px; margin-left: auto; }
    .main-nav a {
      position: relative; padding: 27px 0 25px; color: var(--ink-soft);
      font-size: 14px; white-space: nowrap; transition: color .2s ease;
    }
    .main-nav a::after {
      position: absolute; content: ""; left: 0; right: 100%; bottom: 18px;
      height: 2px; background: var(--accent); transition: right .2s ease;
    }
    .main-nav a:hover, .main-nav a[aria-current="page"] { color: var(--accent-dark); }
    .main-nav a:hover::after, .main-nav a[aria-current="page"]::after { right: 0; }
    .header-tools { display: flex; align-items: center; gap: 10px; }
    .search-trigger, .menu-toggle {
      border: 1px solid var(--line-strong); background: transparent; border-radius: 4px;
      cursor: pointer; transition: background .2s ease, border-color .2s ease;
    }
    .search-trigger { padding: 8px 12px; font-size: 13px; }
    .search-trigger:hover, .menu-toggle:hover { background: var(--surface); border-color: var(--ink-soft); }
    .menu-toggle { display: none; width: 40px; height: 40px; place-items: center; padding: 8px; }
    .menu-toggle span, .menu-toggle::before, .menu-toggle::after {
      content: ""; display: block; width: 18px; height: 2px; margin: 3px auto;
      background: var(--ink); transition: transform .2s ease, opacity .2s ease;
    }
    .hero {
      min-height: 510px;
      position: relative;
      display: flex;
      align-items: center;
      overflow: hidden;
      color: #fff;
      background: #292b28 url("https://images.unsplash.com/photo-1485846234645-a62644f84728?auto=format&fit=crop&w=2000&q=85") center 44% / cover no-repeat;
    }
    .hero::before {
      content: ""; position: absolute; inset: 0;
      background: linear-gradient(90deg, rgba(22, 24, 22, .88) 0%, rgba(22, 24, 22, .69) 45%, rgba(22, 24, 22, .18) 100%);
    }
    .hero-inner { position: relative; z-index: 1; padding-block: 76px 86px; }
    .hero-kicker, .eyebrow {
      display: inline-flex; align-items: center; gap: 9px;
      color: var(--accent); font-size: 12px; font-weight: 800; letter-spacing: 0;
    }
    .hero-kicker { color: #f2c3b9; }
    .hero-kicker::before { content: ""; width: 22px; height: 2px; background: currentColor; }
    .hero h1 { max-width: 760px; margin: 18px 0 14px; font-size: 48px; line-height: 1.2; letter-spacing: 0; }
    .hero-copy { max-width: 650px; margin: 0; color: rgba(255,255,255,.83); font-size: 17px; line-height: 1.9; }
    .hero-actions { display: flex; flex-wrap: wrap; align-items: center; gap: 20px; margin-top: 30px; }
    .button {
      display: inline-flex; align-items: center; justify-content: center; gap: 9px;
      min-height: 46px; padding: 10px 18px; border: 1px solid transparent;
      border-radius: 4px; cursor: pointer; font-size: 14px; font-weight: 700;
      transition: background .2s ease, border-color .2s ease, color .2s ease, transform .2s ease;
    }
    .button:hover { transform: translateY(-1px); }
    .button-primary { background: var(--accent); color: white; }
    .button-primary:hover { background: var(--accent-dark); }
    .button-outline-light { color: white; border-color: rgba(255,255,255,.55); background: transparent; }
    .button-outline-light:hover { background: rgba(255,255,255,.1); border-color: white; }
    .button-secondary { background: var(--ink); color: white; }
    .button-secondary:hover { background: #111; }
    .text-link { color: var(--accent-dark); font-size: 14px; font-weight: 700; }
    .text-link:hover { text-decoration: underline; text-underline-offset: 4px; }
    .hero-meta { display: flex; gap: 18px; margin-top: 34px; color: rgba(255,255,255,.68); font-size: 12px; }
    .hero-meta span + span::before { content: "•"; margin-right: 18px; color: #e7a197; }
    .section { padding: 72px 0; border-bottom: 1px solid var(--line); }
    .section-compact { padding: 46px 0; }
    .section-alt { background: var(--surface-alt); }
    .section-dark { background: #292b28; color: white; }
    .section-head {
      display: flex; align-items: end; justify-content: space-between; gap: 24px; margin-bottom: 30px;
    }
    .section-head h2, .section h2 {
      margin: 0; font-size: 29px; line-height: 1.3; letter-spacing: 0;
    }
    .section-head p { max-width: 500px; margin: 8px 0 0; color: var(--muted); }
    .section-dark .section-head p { color: rgba(255,255,255,.65); }
    .eyebrow { margin-bottom: 10px; text-transform: none; }
    .index-strip { display: grid; grid-template-columns: repeat(5, 1fr); border: 1px solid var(--line); background: var(--surface); }
    .index-item {
      position: relative; min-height: 100px; padding: 20px 22px;
      border-right: 1px solid var(--line); transition: background .2s ease;
    }
    .index-item:last-child { border-right: 0; }
    .index-item:hover { background: var(--accent-pale); }
    .index-number { display: block; margin-bottom: 7px; color: var(--accent); font-size: 11px; font-weight: 800; }
    .index-item strong { display: block; font-size: 15px; }
    .index-item small { color: var(--muted); font-size: 12px; }
    .feature-grid { display: grid; grid-template-columns: 1.2fr .8fr; gap: 34px; align-items: stretch; }
    .feature-main {
      min-height: 330px; position: relative; display: flex; align-items: end; overflow: hidden;
      background: #444 url("https://images.unsplash.com/photo-1517604931442-7e0c8ed2963c?auto=format&fit=crop&w=1200&q=80") center / cover no-repeat;
      color: white; border-radius: var(--radius);
    }
    .feature-main::before { content: ""; position: absolute; inset: 0; background: linear-gradient(0deg, rgba(15,16,15,.88), rgba(15,16,15,.02) 75%); }
    .feature-main-content { position: relative; z-index: 1; max-width: 620px; padding: 30px; }
    .feature-main h3 { margin: 8px 0; font-size: 26px; line-height: 1.35; }
    .feature-main p { margin: 0; color: rgba(255,255,255,.8); }
    .feature-side { display: flex; flex-direction: column; justify-content: space-between; border-top: 1px solid var(--line-strong); }
    .feature-side article { padding: 20px 0; border-bottom: 1px solid var(--line); }
    .feature-side h3, .story-list h3 { margin: 6px 0 4px; font-size: 17px; line-height: 1.5; }
    .feature-side p, .story-list p { margin: 0; color: var(--muted); font-size: 14px; }
    .tag-row { display: flex; flex-wrap: wrap; gap: 7px; }
    .tag {
      display: inline-flex; align-items: center; min-height: 25px; padding: 2px 9px;
      border: 1px solid var(--line); border-radius: 3px; color: var(--ink-soft);
      background: rgba(255,255,255,.68); font-size: 11px; line-height: 1.5;
    }
    .tag-accent { color: var(--accent-dark); border-color: #e7c5be; background: var(--accent-pale); }
    .editorial-layout { display: grid; grid-template-columns: 1fr 1fr; gap: 58px; align-items: center; }
    .editorial-image {
      min-height: 360px; background: #dedbd3 url("https://images.unsplash.com/photo-1489599849927-2ee91cede3ba?auto=format&fit=crop&w=1100&q=85") center / cover no-repeat;
      border-radius: var(--radius);
    }
    .editorial-copy h2 { max-width: 460px; margin: 10px 0 15px; font-size: 34px; line-height: 1.35; }
    .editorial-copy p { max-width: 520px; color: var(--muted); }
    .editorial-copy .text-link { display: inline-block; margin-top: 14px; }
    .topic-columns { display: grid; grid-template-columns: .7fr 1.3fr; gap: 48px; }
    .topic-intro { padding-top: 7px; }
    .topic-intro p { color: var(--muted); }
    .topic-list { display: grid; grid-template-columns: repeat(2, 1fr); column-gap: 34px; }
    .topic-row {
      display: flex; align-items: baseline; justify-content: space-between; gap: 15px;
      padding: 15px 0; border-top: 1px solid var(--line-strong);
    }
    .topic-row strong { font-size: 15px; }
    .topic-row span { color: var(--muted); font-size: 12px; white-space: nowrap; }
    .series-layout { display: grid; grid-template-columns: .9fr 1.1fr; gap: 48px; }
    .series-poster {
      min-height: 370px; position: relative; overflow: hidden; border-radius: var(--radius);
      background: #5d5e57 url("https://images.unsplash.com/photo-1478720568477-152d9b164e26?auto=format&fit=crop&w=1100&q=80") center / cover no-repeat;
    }
    .series-poster::after { content: ""; position: absolute; inset: 0; background: linear-gradient(135deg, rgba(35,37,33,.05), rgba(35,37,33,.5)); }
    .series-copy { display: flex; flex-direction: column; justify-content: center; }
    .series-copy h2 { margin: 10px 0 12px; font-size: 31px; }
    .series-copy > p { color: var(--muted); }
    .episode-list { margin-top: 15px; border-top: 1px solid var(--line-strong); }
    .episode {
      display: grid; grid-template-columns: 42px 1fr auto; align-items: center; gap: 14px;
      padding: 13px 0; border-bottom: 1px solid var(--line);
    }
    .episode-num { color: var(--accent); font-weight: 800; font-size: 12px; }
    .episode strong { font-size: 14px; }
    .episode small { color: var(--muted); font-size: 12px; }
    .numbered-grid { display: grid; grid-template-columns: repeat(4, 1fr); border-top: 1px solid var(--line-strong); }
    .numbered-item { min-height: 140px; padding: 20px 18px 18px 0; border-bottom: 1px solid var(--line); }
    .numbered-item:nth-child(4n + 2), .numbered-item:nth-child(4n + 3), .numbered-item:nth-child(4n + 4) { padding-left: 18px; border-left: 1px solid var(--line); }
    .numbered-item b { display: block; color: var(--accent); font-size: 12px; }
    .numbered-item h3 { margin: 7px 0 4px; font-size: 15px; }
    .numbered-item p { margin: 0; color: var(--muted); font-size: 13px; }
    .category-band { display: grid; grid-template-columns: .8fr 1.2fr; align-items: center; gap: 38px; }
    .category-band h2 { max-width: 400px; }
    .category-links { display: grid; grid-template-columns: repeat(2, 1fr); border-top: 1px solid var(--line-strong); }
    .category-link {
      display: flex; justify-content: space-between; align-items: center; gap: 12px;
      padding: 15px 4px; border-bottom: 1px solid var(--line); font-weight: 700;
      transition: color .2s ease, padding .2s ease;
    }
    .category-link:nth-child(odd) { margin-right: 18px; }
    .category-link:hover { color: var(--accent-dark); padding-left: 9px; }
    .category-link span:last-child { color: var(--accent); font-size: 18px; }
    .story-layout { display: grid; grid-template-columns: 1fr 1fr; gap: 54px; }
    .story-list { border-top: 1px solid var(--line-strong); }
    .story-item { padding: 16px 0; border-bottom: 1px solid var(--line); }
    .story-meta { color: var(--accent-dark); font-size: 11px; font-weight: 800; }
    .recommend-band { display: grid; grid-template-columns: 1.1fr .9fr; gap: 50px; align-items: center; }
    .recommend-visual {
      min-height: 300px; background: #777 url("https://images.unsplash.com/photo-1518676590629-3dcbd9c5a5c9?auto=format&fit=crop&w=1100&q=80") center / cover no-repeat;
      border-radius: var(--radius);
    }
    .recommend-copy p { color: var(--muted); }
    .recommend-list { margin-top: 20px; border-top: 1px solid var(--line-strong); }
    .recommend-list a { display: block; padding: 12px 0; border-bottom: 1px solid var(--line); font-size: 14px; font-weight: 700; }
    .recommend-list a:hover { color: var(--accent-dark); }
    .guide-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px; }
    .guide-item { padding-top: 17px; border-top: 2px solid var(--accent); }
    .guide-item b { display: block; margin-bottom: 6px; color: var(--accent); font-size: 12px; }
    .guide-item h3 { margin: 0 0 6px; font-size: 16px; }
    .guide-item p { margin: 0; color: var(--muted); font-size: 14px; }
    .faq-list { border-top: 1px solid var(--line-strong); }
    .faq-list details { border-bottom: 1px solid var(--line); }
    .faq-list summary {
      position: relative; padding: 17px 38px 17px 0; cursor: pointer; list-style: none;
      font-size: 15px; font-weight: 700;
    }
    .faq-list summary::-webkit-details-marker { display: none; }
    .faq-list summary::after { content: "+"; position: absolute; right: 5px; top: 13px; color: var(--accent); font-size: 22px; font-weight: 400; }
    .faq-list details[open] summary::after { content: "−"; }
    .faq-list details p { max-width: 800px; margin: -4px 0 18px; color: var(--muted); font-size: 14px; }
    .search-panel {
      position: fixed; z-index: 50; inset: 0; display: none; place-items: start center;
      padding: 13vh 24px 24px; background: rgba(28,29,27,.66);
    }
    .search-panel.is-open { display: grid; }
    .search-dialog { width: min(620px, 100%); padding: 28px; background: var(--surface); border-radius: var(--radius-lg); box-shadow: var(--shadow); }
    .search-dialog-head { display: flex; align-items: center; justify-content: space-between; gap: 20px; margin-bottom: 16px; }
    .search-dialog h2 { margin: 0; font-size: 21px; }
    .close-search { width: 36px; height: 36px; border: 1px solid var(--line); background: transparent; border-radius: 4px; cursor: pointer; }
    .search-form { display: flex; gap: 9px; }
    .search-form label { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0,0,0,0); }
    .search-form input {
      flex: 1; min-width: 0; padding: 12px 13px; border: 1px solid var(--line-strong);
      border-radius: 4px; background: white; color: var(--ink);
    }
    .search-result { min-height: 25px; margin: 12px 0 0; color: var(--muted); font-size: 13px; }
    .site-footer { padding: 44px 0 22px; background: #252724; color: white; }
    .footer-main { display: flex; justify-content: space-between; gap: 38px; padding-bottom: 30px; }
    .footer-brand p { max-width: 430px; margin: 13px 0 0; color: rgba(255,255,255,.62); font-size: 13px; }
    .footer-links { display: flex; gap: 25px; align-items: flex-start; flex-wrap: wrap; }
    .footer-links a { color: rgba(255,255,255,.78); font-size: 13px; }
    .footer-links a:hover { color: white; text-decoration: underline; text-underline-offset: 4px; }
    .footer-bottom { display: flex; justify-content: space-between; gap: 20px; padding-top: 16px; border-top: 1px solid rgba(255,255,255,.16); color: rgba(255,255,255,.52); font-size: 11px; }
    .mobile-panel { display: none; }
    @media (max-width: 1024px) {
      .header-inner { gap: 20px; }
      .main-nav { gap: 17px; }
      .main-nav a { font-size: 13px; }
      .brand { font-size: 16px; }
      .hero { min-height: 470px; }
      .topic-columns, .category-band { gap: 28px; }
      .numbered-grid { grid-template-columns: repeat(2, 1fr); }
      .numbered-item:nth-child(n) { padding: 18px; border-left: 0; }
      .numbered-item:nth-child(even) { border-left: 1px solid var(--line); }
    }
    @media (max-width: 768px) {
      .container { width: min(100% - 36px, var(--container)); }
      .header-inner { min-height: 66px; }
      .main-nav { display: none; }
      .header-tools { margin-left: auto; }
      .menu-toggle { display: grid; }
      .search-trigger { padding: 8px 10px; }
      .mobile-panel {
        position: absolute; left: 0; right: 0; top: 100%; padding: 8px 18px 16px;
        background: var(--paper); border-bottom: 1px solid var(--line); box-shadow: var(--shadow);
      }
      .mobile-panel.is-open { display: grid; }
      .mobile-panel a { padding: 11px 3px; border-bottom: 1px solid var(--line); font-size: 14px; }
      .mobile-panel a:last-child { border-bottom: 0; }
      .hero { min-height: 445px; background-position: 58% center; }
      .hero::before { background: linear-gradient(90deg, rgba(22,24,22,.88), rgba(22,24,22,.48)); }
      .hero-inner { padding-block: 63px 70px; }
      .hero h1 { max-width: 600px; font-size: 39px; }
      .hero-copy { font-size: 15px; }
      .section { padding: 55px 0; }
      .section-compact { padding: 36px 0; }
      .section-head { align-items: flex-start; flex-direction: column; gap: 7px; }
      .section-head h2, .section h2 { font-size: 26px; }
      .index-strip { grid-template-columns: repeat(2, 1fr); }
      .index-item { min-height: 88px; border-bottom: 1px solid var(--line); }
      .index-item:nth-child(2n) { border-right: 0; }
      .index-item:last-child { grid-column: 1 / -1; border-bottom: 0; }
      .feature-grid, .editorial-layout, .topic-columns, .series-layout, .category-band, .story-layout, .recommend-band { grid-template-columns: 1fr; gap: 28px; }
      .feature-main { min-height: 300px; }
      .editorial-image { min-height: 300px; }
      .series-poster { min-height: 300px; }
      .category-links { margin-top: 4px; }
      .recommend-visual { min-height: 260px; }
      .guide-grid { grid-template-columns: 1fr; gap: 22px; }
      .footer-main { flex-direction: column; }
    }
    @media (max-width: 520px) {
      .container { width: calc(100% - 32px); }
      .brand { gap: 8px; font-size: 14px; }
      .brand-mark { width: 27px; height: 27px; font-size: 11px; }
      .brand-text { max-width: 185px; }
      .header-tools { gap: 7px; }
      .search-trigger { font-size: 12px; }
      .hero { min-height: 420px; }
      .hero h1 { font-size: 33px; }
      .hero-meta { flex-wrap: wrap; gap: 8px 14px; }
      .hero-meta span + span::before { margin-right: 12px; }
      .hero-actions { gap: 13px; }
      .button { min-height: 43px; padding: 9px 13px; font-size: 13px; }
      .section-head h2, .section h2 { font-size: 23px; }
      .index-item { padding: 16px 14px; }
      .feature-main-content { padding: 22px; }
      .feature-main h3 { font-size: 22px; }
      .topic-list, .category-links { grid-template-columns: 1fr; }
      .category-link:nth-child(odd) { margin-right: 0; }
      .numbered-grid { grid-template-columns: 1fr 1fr; }
      .numbered-item:nth-child(n) { padding: 14px 11px; }
      .episode { grid-template-columns: 30px 1fr; gap: 10px; }
      .episode small { grid-column: 2; }
      .search-dialog { padding: 20px; }
      .search-form { flex-direction: column; }
      .footer-bottom { flex-direction: column; gap: 7px; }
    }
    @media (prefers-reduced-motion: reduce) {
      *, *::before, *::after { scroll-behavior: auto !important; transition-duration: .01ms !important; }
    }

/* roulang page: category1 */
:root {
      color-scheme: light;
      --ink: #252624;
      --ink-soft: #454642;
      --muted: #777873;
      --paper: #f7f6f3;
      --surface: #fff;
      --surface-alt: #efeee9;
      --line: #deded8;
      --line-strong: #c9c9c1;
      --accent: #b94437;
      --accent-dark: #913328;
      --accent-pale: #f4e8e4;
      --olive: #70775c;
      --radius: 6px;
      --radius-lg: 8px;
      --shadow: 0 12px 28px rgba(36, 37, 33, .08);
      --container: 1160px;
    }
    * { box-sizing: border-box; }
    html { scroll-behavior: smooth; scroll-padding-top: 88px; }
    body {
      margin: 0; background: var(--paper); color: var(--ink);
      font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans CJK SC", system-ui, sans-serif;
      font-size: 15px; line-height: 1.75; -webkit-font-smoothing: antialiased;
    }
    img { display: block; max-width: 100%; }
    a { color: inherit; text-decoration: none; }
    button, input { font: inherit; }
    button { color: inherit; }
    a:focus-visible, button:focus-visible, input:focus-visible, summary:focus-visible {
      outline: 3px solid rgba(185, 68, 55, .42); outline-offset: 3px;
    }
    .container { width: min(var(--container), calc(100% - 48px)); margin-inline: auto; }
    .site-header {
      position: sticky; z-index: 20; top: 0; background: rgba(247, 246, 243, .96);
      border-bottom: 1px solid var(--line); backdrop-filter: blur(12px);
    }
    .header-inner { min-height: 76px; display: flex; align-items: center; gap: 36px; }
    .brand {
      display: inline-flex; align-items: center; gap: 11px; flex: 0 0 auto;
      font-size: 18px; font-weight: 800; line-height: 1.2;
    }
    .brand-mark {
      width: 30px; height: 30px; display: grid; place-items: center; background: var(--accent);
      color: #fff; border-radius: 4px; font-size: 13px; font-weight: 800;
    }
    .brand-text { max-width: 260px; }
    .main-nav { display: flex; align-items: center; gap: 26px; margin-left: auto; }
    .main-nav a {
      position: relative; padding: 27px 0 25px; color: var(--ink-soft);
      font-size: 14px; white-space: nowrap; transition: color .2s ease;
    }
    .main-nav a::after {
      position: absolute; content: ""; left: 0; right: 100%; bottom: 18px; height: 2px;
      background: var(--accent); transition: right .2s ease;
    }
    .main-nav a:hover, .main-nav a[aria-current="page"] { color: var(--accent-dark); }
    .main-nav a:hover::after, .main-nav a[aria-current="page"]::after { right: 0; }
    .header-tools { display: flex; align-items: center; gap: 10px; }
    .search-trigger, .menu-toggle {
      border: 1px solid var(--line-strong); background: transparent; border-radius: 4px;
      cursor: pointer; transition: background .2s ease, border-color .2s ease;
    }
    .search-trigger { padding: 8px 12px; font-size: 13px; }
    .search-trigger:hover, .menu-toggle:hover { background: var(--surface); border-color: var(--ink-soft); }
    .menu-toggle { display: none; width: 40px; height: 40px; place-items: center; padding: 8px; }
    .menu-toggle span, .menu-toggle::before, .menu-toggle::after {
      content: ""; display: block; width: 18px; height: 2px; margin: 3px auto;
      background: var(--ink); transition: transform .2s ease, opacity .2s ease;
    }
    .page-intro { padding: 38px 0 26px; }
    .breadcrumbs { display: flex; align-items: center; gap: 10px; color: var(--muted); font-size: 13px; }
    .breadcrumbs a:hover { color: var(--accent-dark); text-decoration: underline; text-underline-offset: 3px; }
    .breadcrumbs span[aria-current="page"] { color: var(--ink-soft); }
    .intro-grid {
      display: grid; grid-template-columns: minmax(0, 1fr) 260px; align-items: end;
      gap: 34px; padding: 38px 0 18px;
    }
    .eyebrow {
      display: inline-flex; align-items: center; gap: 9px; margin-bottom: 12px;
      color: var(--accent); font-size: 12px; font-weight: 800;
    }
    .eyebrow::before { content: ""; width: 22px; height: 2px; background: currentColor; }
    h1, h2, h3, p { overflow-wrap: anywhere; }
    .page-intro h1 { max-width: 790px; margin: 0; font-size: 42px; line-height: 1.25; font-weight: 800; }
    .intro-copy { max-width: 750px; margin: 16px 0 0; color: var(--ink-soft); font-size: 16px; line-height: 1.9; }
    .intro-note { border-left: 2px solid var(--accent); padding: 4px 0 4px 18px; color: var(--muted); font-size: 13px; }
    .intro-note strong { display: block; margin-bottom: 5px; color: var(--ink); font-size: 15px; }
    .section { padding: 58px 0; border-top: 1px solid var(--line); }
    .section-compact { padding: 34px 0; }
    .section-alt { background: var(--surface-alt); }
    .section-head {
      display: flex; align-items: end; justify-content: space-between; gap: 24px; margin-bottom: 24px;
    }
    .section-head h2, .section h2 { margin: 0; font-size: 27px; line-height: 1.35; font-weight: 800; }
    .section-head p { max-width: 540px; margin: 7px 0 0; color: var(--muted); }
    .eyebrow + h2 { margin-top: 0; }
    .topic-index { display: grid; grid-template-columns: repeat(4, 1fr); border: 1px solid var(--line); background: var(--surface); }
    .index-item {
      min-height: 90px; padding: 17px 20px; border-right: 1px solid var(--line);
      transition: background .2s ease, color .2s ease;
    }
    .index-item:last-child { border-right: 0; }
    .index-item:hover { background: var(--accent-pale); color: var(--accent-dark); }
    .index-item span { display: block; color: var(--muted); font-size: 12px; }
    .index-item strong { display: block; margin-top: 4px; font-size: 16px; }
    .content-layout { display: grid; grid-template-columns: minmax(0, 1fr) 250px; gap: 46px; }
    .entry-list { border-top: 1px solid var(--line-strong); }
    .entry {
      display: grid; grid-template-columns: 54px minmax(0, 1fr) auto; gap: 18px;
      align-items: start; padding: 22px 0; border-bottom: 1px solid var(--line);
      transition: padding .2s ease, background .2s ease;
    }
    .entry:hover { padding-inline: 10px; background: rgba(255,255,255,.65); }
    .entry-number { color: var(--accent); font-size: 14px; font-weight: 800; padding-top: 2px; }
    .entry h3 { margin: 0; font-size: 18px; line-height: 1.45; font-weight: 750; }
    .entry p { margin: 7px 0 0; max-width: 690px; color: var(--muted); font-size: 14px; }
    .tag-row { display: flex; flex-wrap: wrap; gap: 7px; margin-top: 11px; }
    .tag {
      display: inline-flex; align-items: center; min-height: 25px; padding: 3px 9px;
      border: 1px solid var(--line); border-radius: 3px; color: var(--ink-soft); font-size: 11px;
      line-height: 1.4;
    }
    .entry-arrow { color: var(--accent); font-size: 20px; line-height: 1; }
    .content-aside { border-left: 1px solid var(--line); padding-left: 24px; }
    .content-aside h3 { margin: 0 0 13px; font-size: 16px; }
    .aside-links { display: grid; gap: 0; }
    .aside-links a {
      padding: 10px 0; border-top: 1px solid var(--line); color: var(--ink-soft); font-size: 13px;
      transition: color .2s ease, padding-left .2s ease;
    }
    .aside-links a:hover { padding-left: 5px; color: var(--accent-dark); }
    .summary-grid { display: grid; grid-template-columns: 1.2fr .8fr; gap: 46px; }
    .summary-text { max-width: 680px; color: var(--ink-soft); }
    .summary-text p { margin: 0 0 13px; }
    .summary-points { border-top: 1px solid var(--line-strong); }
    .summary-point { padding: 13px 0; border-bottom: 1px solid var(--line); }
    .summary-point strong { display: block; font-size: 15px; }
    .summary-point span { color: var(--muted); font-size: 13px; }
    .related-topics { display: grid; grid-template-columns: repeat(3, 1fr); gap: 0 26px; }
    .related-topic { padding: 17px 0; border-top: 1px solid var(--line-strong); }
    .related-topic h3 { margin: 0 0 5px; font-size: 16px; }
    .related-topic p { margin: 0; color: var(--muted); font-size: 13px; }
    .faq-list { border-top: 1px solid var(--line-strong); }
    .faq-list details { border-bottom: 1px solid var(--line); }
    .faq-list summary {
      position: relative; padding: 17px 38px 17px 0; cursor: pointer; list-style: none;
      font-size: 15px; font-weight: 700;
    }
    .faq-list summary::-webkit-details-marker { display: none; }
    .faq-list summary::after { content: "+"; position: absolute; right: 4px; color: var(--accent); font-size: 20px; }
    .faq-list details[open] summary::after { content: "−"; }
    .faq-list details p { max-width: 850px; margin: -3px 0 18px; color: var(--muted); font-size: 14px; }
    .return-band { display: flex; align-items: center; justify-content: space-between; gap: 24px; }
    .return-band h2 { font-size: 22px; }
    .return-band p { margin: 5px 0 0; color: var(--muted); }
    .button {
      display: inline-flex; align-items: center; justify-content: center; gap: 9px;
      min-height: 44px; padding: 9px 17px; border: 1px solid transparent; border-radius: 4px;
      cursor: pointer; font-size: 14px; font-weight: 700;
      transition: background .2s ease, border-color .2s ease, color .2s ease, transform .2s ease;
    }
    .button:hover { transform: translateY(-1px); }
    .button-primary { background: var(--accent); color: #fff; }
    .button-primary:hover { background: var(--accent-dark); }
    .button-secondary { background: var(--ink); color: #fff; }
    .button-secondary:hover { background: #111; }
    .text-link { color: var(--accent-dark); font-size: 14px; font-weight: 700; }
    .text-link:hover { text-decoration: underline; text-underline-offset: 4px; }
    .site-footer { padding: 42px 0 20px; background: #292b28; color: #fff; }
    .footer-main { display: flex; justify-content: space-between; gap: 40px; padding-bottom: 30px; }
    .footer-brand { max-width: 440px; }
    .footer-brand .brand { color: #fff; }
    .footer-brand p { margin: 14px 0 0; color: rgba(255,255,255,.65); font-size: 13px; }
    .footer-links { display: flex; flex-wrap: wrap; align-content: start; gap: 12px 22px; max-width: 490px; }
    .footer-links a { color: rgba(255,255,255,.76); font-size: 13px; transition: color .2s ease; }
    .footer-links a:hover { color: #fff; text-decoration: underline; text-underline-offset: 4px; }
    .footer-bottom {
      display: flex; justify-content: space-between; gap: 16px; padding-top: 17px;
      border-top: 1px solid rgba(255,255,255,.16); color: rgba(255,255,255,.55); font-size: 11px;
    }
    @media (max-width: 1024px) {
      .header-inner { gap: 22px; }
      .main-nav { gap: 16px; }
      .content-layout { grid-template-columns: minmax(0, 1fr) 220px; gap: 30px; }
    }
    @media (max-width: 768px) {
      .container { width: min(var(--container), calc(100% - 36px)); }
      .header-inner { min-height: 68px; justify-content: space-between; }
      .brand { font-size: 16px; }
      .menu-toggle { display: block; }
      .main-nav {
        display: none; position: absolute; top: 100%; left: 0; right: 0; margin: 0;
        padding: 8px 18px 14px; background: var(--paper); border-bottom: 1px solid var(--line);
      }
      .main-nav.is-open { display: grid; gap: 0; }
      .main-nav a { padding: 10px 4px; border-bottom: 1px solid var(--line); }
      .main-nav a::after { display: none; }
      .header-tools { margin-left: auto; }
      .search-trigger { padding: 7px 9px; }
      .intro-grid { grid-template-columns: 1fr; gap: 22px; padding-top: 29px; }
      .page-intro h1 { font-size: 34px; }
      .intro-note { max-width: 540px; }
      .section { padding: 44px 0; }
      .section-compact { padding: 30px 0; }
      .content-layout { grid-template-columns: 1fr; gap: 30px; }
      .content-aside { border-left: 0; border-top: 1px solid var(--line); padding: 22px 0 0; }
      .related-topics { grid-template-columns: repeat(2, 1fr); gap: 0 22px; }
      .summary-grid { grid-template-columns: 1fr; gap: 24px; }
      .topic-index { grid-template-columns: repeat(2, 1fr); }
      .index-item:nth-child(2) { border-right: 0; }
      .index-item:nth-child(-n+2) { border-bottom: 1px solid var(--line); }
    }
    @media (max-width: 520px) {
      .container { width: calc(100% - 30px); }
      .brand { gap: 8px; font-size: 14px; }
      .brand-mark { width: 28px; height: 28px; }
      .header-inner { gap: 10px; }
      .search-trigger { font-size: 12px; }
      .page-intro { padding-top: 26px; }
      .page-intro h1 { font-size: 29px; }
      .intro-copy { font-size: 15px; }
      .section-head { display: block; }
      .section-head .text-link { display: inline-block; margin-top: 12px; }
      .section-head h2, .section h2 { font-size: 23px; }
      .topic-index { grid-template-columns: 1fr 1fr; }
      .index-item { min-height: 82px; padding: 14px 12px; }
      .index-item strong { font-size: 14px; }
      .entry { grid-template-columns: 32px minmax(0, 1fr) 16px; gap: 10px; padding: 18px 0; }
      .entry h3 { font-size: 16px; }
      .entry p { font-size: 13px; }
      .related-topics { grid-template-columns: 1fr; }
      .return-band, .footer-main, .footer-bottom { align-items: flex-start; flex-direction: column; }
      .footer-links { gap: 10px 17px; }
      .footer-bottom { gap: 7px; }
    }
    @media (prefers-reduced-motion: reduce) {
      *, *::before, *::after { scroll-behavior: auto !important; transition-duration: .01ms !important; }
    }