/* roulang page: index */
:root {
      --bg: #101211;
      --bg-soft: #171a18;
      --panel: #1d221f;
      --panel-2: #232a26;
      --panel-3: #2b332e;
      --text: #f3f7f1;
      --muted: #aab6ad;
      --muted-2: #7f8c83;
      --line: rgba(216, 237, 219, .14);
      --line-strong: rgba(97, 234, 172, .38);
      --primary: #62e3a7;
      --primary-2: #20b7a4;
      --accent: #ffd166;
      --warm: #ff8f5b;
      --success: #66df9b;
      --warning: #ffd166;
      --danger: #ff6678;
      --input: #121613;
      --shadow: 0 18px 50px rgba(0, 0, 0, .34);
      --shadow-soft: 0 10px 30px rgba(0, 0, 0, .24);
      --radius: 8px;
      --radius-sm: 6px;
      --nav-w: 272px;
      --container: 1180px;
      --font: -apple-system, BlinkMacSystemFont, "Segoe UI", "Microsoft YaHei", "PingFang SC", "Hiragino Sans GB", Arial, sans-serif;
    }

    *, *::before, *::after { box-sizing: border-box; }
    html { scroll-behavior: smooth; }
    body {
      margin: 0;
      min-height: 100vh;
      font-family: var(--font);
      color: var(--text);
      background:
        linear-gradient(180deg, rgba(98, 227, 167, .06), transparent 320px),
        radial-gradient(circle at 82% 12%, rgba(255, 209, 102, .08), transparent 280px),
        var(--bg);
      line-height: 1.75;
      overflow-x: hidden;
    }
    a { color: inherit; text-decoration: none; transition: color .18s ease, border-color .18s ease, background .18s ease, transform .18s ease; }
    a:hover { color: var(--primary); }
    img { max-width: 100%; display: block; }
    button, input, select { font: inherit; }
    button:focus-visible, a:focus-visible, input:focus-visible, select:focus-visible {
      outline: 3px solid rgba(98, 227, 167, .42);
      outline-offset: 3px;
    }
    p { margin: 0; color: var(--muted); }
    h1, h2, h3, h4 { margin: 0; line-height: 1.25; font-weight: 800; letter-spacing: 0; }
    .page-shell { min-height: 100vh; }
    .content-wrap { margin-left: var(--nav-w); min-height: 100vh; }
    .section { padding: 72px 0; position: relative; }
    .section.tight { padding-top: 44px; }
    .container-fluid.site-container { max-width: var(--container); padding-left: 32px; padding-right: 32px; }
    .section-kicker { color: var(--primary); font-size: 14px; font-weight: 800; margin-bottom: 10px; }
    .section-title { font-size: 34px; margin-bottom: 14px; }
    .section-desc { max-width: 760px; font-size: 16px; }
    .section-head { margin-bottom: 28px; }

    .side-nav {
      position: fixed;
      inset: 0 auto 0 0;
      width: var(--nav-w);
      z-index: 1040;
      background: linear-gradient(180deg, #141816, #101211);
      border-right: 1px solid var(--line);
      box-shadow: var(--shadow-soft);
      display: flex;
      flex-direction: column;
      padding: 22px 18px;
    }
    .brand-link { display: flex; align-items: center; gap: 12px; padding: 8px 8px 20px; border-bottom: 1px solid var(--line); }
    .brand-mark {
      width: 42px; height: 42px; border-radius: var(--radius);
      display: grid; place-items: center;
      color: #07110c; font-weight: 900;
      background: linear-gradient(135deg, var(--primary), var(--accent));
      box-shadow: 0 0 0 1px rgba(255,255,255,.08), 0 10px 26px rgba(98,227,167,.22);
      flex: 0 0 auto;
    }
    .brand-text { min-width: 0; }
    .brand-name { font-size: 17px; font-weight: 900; color: var(--text); line-height: 1.35; }
    .brand-note { font-size: 12px; color: var(--muted-2); margin-top: 2px; }
    .nav-group { padding: 18px 0; display: grid; gap: 8px; }
    .nav-label { font-size: 12px; color: var(--muted-2); padding: 0 10px; }
    .nav-item-link {
      position: relative;
      display: flex; align-items: center; gap: 10px;
      min-height: 44px;
      padding: 10px 12px;
      color: var(--muted);
      border: 1px solid transparent;
      border-radius: var(--radius-sm);
      background: transparent;
      font-weight: 700;
    }
    .nav-item-link .dot {
      width: 8px; height: 8px; border-radius: 50%;
      background: var(--muted-2);
      box-shadow: 0 0 0 4px rgba(127, 140, 131, .08);
      flex: 0 0 auto;
    }
    .nav-item-link:hover { background: rgba(98, 227, 167, .07); border-color: rgba(98, 227, 167, .18); color: var(--text); transform: translateX(2px); }
    .nav-item-link.active { color: var(--text); background: linear-gradient(90deg, rgba(98, 227, 167, .18), rgba(32, 183, 164, .06)); border-color: var(--line-strong); }
    .nav-item-link.active::before { content: ""; position: absolute; left: -18px; top: 8px; bottom: 8px; width: 3px; background: linear-gradient(180deg, var(--primary), var(--accent)); border-radius: 4px; }
    .nav-item-link.active .dot { background: var(--primary); box-shadow: 0 0 0 4px rgba(98, 227, 167, .16); }
    .nav-search { margin-top: 8px; padding: 12px; border: 1px solid var(--line); border-radius: var(--radius); background: var(--panel); }
    .nav-search label { display: block; color: var(--muted); font-size: 13px; margin-bottom: 8px; }
    .search-row { display: flex; gap: 8px; }
    .search-row input { min-width: 0; width: 100%; height: 38px; border-radius: var(--radius-sm); border: 1px solid var(--line); background: var(--input); color: var(--text); padding: 0 10px; }
    .icon-btn { width: 38px; height: 38px; border: 1px solid var(--line-strong); border-radius: var(--radius-sm); background: rgba(98, 227, 167, .12); color: var(--primary); display: grid; place-items: center; }
    .side-bottom { margin-top: auto; border-top: 1px solid var(--line); padding-top: 16px; color: var(--muted-2); font-size: 13px; }

    .mobile-bar { display: none; position: sticky; top: 0; z-index: 1050; background: rgba(16, 18, 17, .96); border-bottom: 1px solid var(--line); backdrop-filter: blur(10px); }
    .mobile-inner { min-height: 64px; display: flex; align-items: center; justify-content: space-between; gap: 12px; padding: 0 16px; }
    .menu-toggle { width: 42px; height: 42px; border-radius: var(--radius-sm); border: 1px solid var(--line); color: var(--text); background: var(--panel); }
    .mobile-menu { border-top: 1px solid var(--line); padding: 12px 16px 18px; background: #101211; }
    .mobile-menu .nav-item-link { min-height: 42px; }

    .hero {
      padding: 34px 0 54px;
      background: linear-gradient(180deg, #222820 0%, #151816 100%);
      border-bottom: 1px solid var(--line);
    }
    .hero-ribbon {
      border: 1px solid var(--line-strong);
      border-radius: var(--radius);
      background:
        linear-gradient(90deg, rgba(98, 227, 167, .14), rgba(255, 209, 102, .08), transparent),
        var(--panel);
      box-shadow: var(--shadow);
      overflow: hidden;
      position: relative;
    }
    .hero-ribbon::before { content: ""; position: absolute; inset: 0 0 auto 0; height: 3px; background: linear-gradient(90deg, var(--primary), var(--accent), var(--primary-2)); }
    .hero-main { padding: 34px; }
    .hero-tagline { display: flex; flex-wrap: wrap; gap: 10px; margin-bottom: 16px; }
    .badge-soft {
      display: inline-flex; align-items: center; gap: 7px;
      padding: 6px 10px;
      border-radius: var(--radius-sm);
      background: rgba(98, 227, 167, .1);
      color: var(--primary);
      border: 1px solid rgba(98, 227, 167, .22);
      font-size: 13px;
      font-weight: 800;
    }
    h1 { font-size: 42px; max-width: 820px; margin-bottom: 16px; }
    .hero-copy { max-width: 850px; font-size: 17px; color: #cfdbd1; }
    .hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 24px; }
    .btn-main, .btn-ghost {
      display: inline-flex; align-items: center; justify-content: center; gap: 8px;
      min-height: 44px;
      padding: 10px 16px;
      border-radius: var(--radius-sm);
      border: 1px solid transparent;
      font-weight: 850;
      transition: transform .18s ease, box-shadow .18s ease, background .18s ease, color .18s ease, border-color .18s ease;
    }
    .btn-main { color: #07110c; background: linear-gradient(135deg, var(--primary), var(--accent)); box-shadow: 0 12px 26px rgba(98, 227, 167, .2); }
    .btn-main:hover { color: #07110c; transform: translateY(-1px); box-shadow: 0 16px 34px rgba(98, 227, 167, .28); }
    .btn-ghost { color: var(--text); background: rgba(255,255,255,.03); border-color: var(--line); }
    .btn-ghost:hover { color: var(--primary); border-color: var(--line-strong); background: rgba(98, 227, 167, .08); transform: translateY(-1px); }
    .btn-main.is-loading { opacity: .78; cursor: wait; }
    .btn-main:disabled, .btn-ghost:disabled { opacity: .45; cursor: not-allowed; transform: none; }
    .hero-strip { border-top: 1px solid var(--line); display: grid; grid-template-columns: repeat(3, 1fr); }
    .hero-stat { padding: 18px 24px; border-right: 1px solid var(--line); background: rgba(0,0,0,.12); }
    .hero-stat:last-child { border-right: 0; }
    .stat-value { font-size: 24px; font-weight: 900; color: var(--text); }
    .stat-label { font-size: 13px; color: var(--muted); }

    .ticket-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }
    .ticket-card, .task-card, .metric-card, .news-panel, .stage-panel, .quote-card, .cta-panel {
      border: 1px solid var(--line);
      background: linear-gradient(180deg, rgba(255,255,255,.035), rgba(255,255,255,.015)), var(--panel);
      border-radius: var(--radius);
      box-shadow: var(--shadow-soft);
      transition: transform .18s ease, border-color .18s ease, box-shadow .18s ease;
    }
    .ticket-card { min-height: 190px; padding: 18px; position: relative; overflow: hidden; }
    .ticket-card::after { content: ""; position: absolute; left: 0; right: 0; bottom: 0; height: 3px; background: linear-gradient(90deg, var(--primary), transparent); opacity: .85; }
    .ticket-card:hover, .task-card:hover, .metric-card:hover, .quote-card:hover { transform: translateY(-2px); border-color: var(--line-strong); box-shadow: 0 18px 44px rgba(0,0,0,.32); }
    .ticket-top { display: flex; align-items: center; justify-content: space-between; gap: 10px; margin-bottom: 18px; }
    .ticket-code { font-size: 12px; color: var(--muted-2); font-weight: 900; }
    .status { display: inline-flex; align-items: center; gap: 6px; color: var(--accent); font-size: 12px; font-weight: 850; }
    .status::before { content: ""; width: 7px; height: 7px; border-radius: 50%; background: currentColor; }
    .ticket-card h3 { font-size: 18px; margin-bottom: 8px; }
    .ticket-card p { font-size: 14px; }

    .rules-board { display: grid; grid-template-columns: 1.1fr .9fr; gap: 18px; align-items: stretch; }
    .steps { display: grid; gap: 14px; }
    .task-card { padding: 18px; display: grid; grid-template-columns: auto 1fr; gap: 14px; align-items: start; }
    .step-no { width: 38px; height: 38px; border-radius: var(--radius-sm); display: grid; place-items: center; color: #06110b; background: var(--primary); font-weight: 900; }
    .task-card h3 { font-size: 18px; margin-bottom: 6px; }
    .rule-aside { padding: 22px; border: 1px solid var(--line); border-radius: var(--radius); background: var(--panel-2); }
    .rule-aside h3 { font-size: 22px; margin-bottom: 14px; }
    .check-list { list-style: none; padding: 0; margin: 0; display: grid; gap: 12px; }
    .check-list li { display: flex; gap: 10px; color: var(--muted); }
    .check-list li::before { content: "✓"; color: var(--primary); font-weight: 900; }

    .topic-grid { display: grid; grid-template-columns: 1.2fr .8fr .8fr; gap: 16px; }
    .topic-card { padding: 20px; border: 1px solid var(--line); border-radius: var(--radius); background: var(--panel); min-height: 180px; }
    .topic-card.featured { background: linear-gradient(135deg, rgba(32, 183, 164, .16), rgba(255, 209, 102, .08)), var(--panel); }
    .topic-card h3 { font-size: 20px; margin-bottom: 10px; }
    .tag-row { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 16px; }
    .tag { display: inline-flex; padding: 5px 9px; border-radius: var(--radius-sm); background: rgba(255,255,255,.045); border: 1px solid var(--line); color: var(--muted); font-size: 12px; font-weight: 800; }

    .stage-grid { display: grid; grid-template-columns: .95fr 1.05fr; gap: 18px; align-items: center; }
    .stage-panel { padding: 20px; }
    .screen-frame { border-radius: var(--radius); background: #0d100e; border: 1px solid var(--line-strong); overflow: hidden; }
    .screen-head { height: 42px; display: flex; align-items: center; gap: 8px; padding: 0 14px; border-bottom: 1px solid var(--line); }
    .screen-dot { width: 9px; height: 9px; border-radius: 50%; background: var(--primary); opacity: .85; }
    .screen-body { padding: 16px; display: grid; gap: 12px; }
    .screen-row { display: grid; grid-template-columns: 120px 1fr auto; gap: 12px; align-items: center; padding: 12px; border: 1px solid var(--line); border-radius: var(--radius-sm); background: rgba(255,255,255,.025); }
    .screen-row strong { color: var(--text); }
    .progress-line { height: 7px; border-radius: 6px; background: rgba(255,255,255,.08); overflow: hidden; }
    .progress-line span { display: block; height: 100%; background: linear-gradient(90deg, var(--primary), var(--accent)); }

    .metric-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }
    .metric-card { padding: 20px; }
    .metric-card strong { display: block; font-size: 30px; line-height: 1.1; color: var(--primary); margin-bottom: 8px; }
    .metric-card span { color: var(--text); font-weight: 850; }
    .metric-card p { margin-top: 8px; font-size: 14px; }

    .quote-layout { display: grid; grid-template-columns: 1.1fr .9fr; gap: 18px; }
    .quote-card { padding: 22px; }
    .quote-card.main { border-color: rgba(255, 209, 102, .28); background: linear-gradient(135deg, rgba(255, 209, 102, .08), rgba(98, 227, 167, .05)), var(--panel); }
    .quote-meta { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 14px; }
    .quote-card blockquote { margin: 0; color: #dbe5dd; font-size: 17px; line-height: 1.8; }
    .small-quotes { display: grid; gap: 14px; }

    .news-layout { display: grid; grid-template-columns: 1.1fr .9fr; gap: 18px; }
    .news-panel { padding: 20px; }
    .news-list { list-style: none; padding: 0; margin: 0; display: grid; gap: 0; }
    .news-list li + li { border-top: 1px solid var(--line); }
    .news-link { display: grid; grid-template-columns: 1fr auto; gap: 14px; padding: 14px 0; align-items: center; }
    .news-link strong { color: var(--text); font-size: 16px; }
    .news-link span { color: var(--muted-2); font-size: 13px; white-space: nowrap; }
    .recommend-list { display: grid; gap: 12px; }
    .recommend-item { padding: 14px; border: 1px solid var(--line); border-radius: var(--radius-sm); background: rgba(255,255,255,.025); }
    .recommend-item h3 { font-size: 17px; margin-bottom: 6px; }

    .accordion.quick-faq { display: grid; gap: 10px; }
    .quick-faq .accordion-item { border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; background: var(--panel); color: var(--text); }
    .quick-faq .accordion-button { background: var(--panel); color: var(--text); font-weight: 850; box-shadow: none; padding: 16px 18px; }
    .quick-faq .accordion-button:not(.collapsed) { color: var(--primary); background: rgba(98, 227, 167, .08); }
    .quick-faq .accordion-button::after { filter: invert(1); opacity: .7; }
    .quick-faq .accordion-body { color: var(--muted); padding: 0 18px 18px; }

    .cta-panel { padding: 30px; position: relative; overflow: hidden; }
    .cta-panel::before { content: ""; position: absolute; inset: 0 0 auto 0; height: 4px; background: linear-gradient(90deg, var(--primary), var(--accent), var(--warm)); }
    .cta-grid { display: grid; grid-template-columns: 1.1fr .9fr; gap: 18px; align-items: center; }
    .cta-panel h2 { font-size: 30px; margin-bottom: 12px; }
    .cta-actions { display: flex; flex-wrap: wrap; gap: 12px; justify-content: flex-end; }

    .site-footer { margin-left: var(--nav-w); padding: 34px 0; border-top: 1px solid var(--line); background: #0c0f0d; }
    .footer-grid { display: grid; grid-template-columns: 1.1fr .9fr; gap: 20px; align-items: start; }
    .footer-brand { font-weight: 900; font-size: 18px; margin-bottom: 8px; }
    .footer-links { display: flex; flex-wrap: wrap; gap: 10px; justify-content: flex-end; }
    .footer-links a { color: var(--muted); padding: 6px 8px; border-radius: var(--radius-sm); }
    .footer-links a:hover { color: var(--primary); background: rgba(98, 227, 167, .07); }
    .copyright { color: var(--muted-2); font-size: 13px; margin-top: 14px; }

    @media (max-width: 1199px) {
      :root { --nav-w: 238px; }
      h1 { font-size: 36px; }
      .ticket-grid, .metric-grid { grid-template-columns: repeat(2, 1fr); }
      .topic-grid { grid-template-columns: 1fr 1fr; }
      .topic-card.featured { grid-column: span 2; }
    }
    @media (max-width: 991px) {
      .side-nav { display: none; }
      .mobile-bar { display: block; }
      .content-wrap, .site-footer { margin-left: 0; }
      .container-fluid.site-container { padding-left: 20px; padding-right: 20px; }
      .section { padding: 56px 0; }
      .rules-board, .stage-grid, .quote-layout, .news-layout, .cta-grid { grid-template-columns: 1fr; }
      .cta-actions { justify-content: flex-start; }
    }
    @media (max-width: 767px) {
      h1 { font-size: 30px; }
      .section-title { font-size: 26px; }
      .hero-main { padding: 24px 18px; }
      .hero-strip { grid-template-columns: 1fr; }
      .hero-stat { border-right: 0; border-top: 1px solid var(--line); }
      .ticket-grid, .metric-grid, .topic-grid { grid-template-columns: 1fr; }
      .topic-card.featured { grid-column: auto; }
      .screen-row { grid-template-columns: 1fr; }
      .news-link { grid-template-columns: 1fr; }
      .footer-grid { grid-template-columns: 1fr; }
      .footer-links { justify-content: flex-start; }
      .btn-main, .btn-ghost { width: 100%; }
    }
    @media (max-width: 520px) {
      .container-fluid.site-container { padding-left: 16px; padding-right: 16px; }
      .hero { padding-top: 18px; }
      .section { padding: 46px 0; }
      .ticket-card, .task-card, .metric-card, .news-panel, .stage-panel, .quote-card, .cta-panel { padding: 16px; }
      .task-card { grid-template-columns: 1fr; }
      .mobile-inner .brand-name { font-size: 15px; }
      .mobile-inner .brand-note { display: none; }
    }
    @media (prefers-reduced-motion: reduce) {
      *, *::before, *::after { scroll-behavior: auto !important; transition: none !important; animation: none !important; }
    }

/* roulang page: category1 */
:root {
            --bg: #0b1017;
            --bg-soft: #111923;
            --panel: #151f2b;
            --panel-2: #1b2835;
            --line: #293846;
            --text: #f2f6f7;
            --muted: #9aaab1;
            --cyan: #53e0d0;
            --cyan-deep: #1da99e;
            --amber: #f4b860;
            --green: #82d89c;
            --red: #ef8d83;
            --radius: 8px;
            --shadow: 0 16px 40px rgba(0, 0, 0, .24);
            --sidebar: 248px;
        }

        *, *::before, *::after { box-sizing: border-box; }
        html { scroll-behavior: smooth; }
        body {
            margin: 0;
            background:
                linear-gradient(90deg, rgba(83, 224, 208, .025) 1px, transparent 1px),
                var(--bg);
            background-size: 42px 42px;
            color: var(--text);
            font-family: "Microsoft YaHei", "PingFang SC", "Noto Sans CJK SC", sans-serif;
            font-size: 15px;
            line-height: 1.75;
            overflow-x: hidden;
        }
        a { color: inherit; text-decoration: none; transition: color .2s ease, border-color .2s ease, transform .2s ease, background .2s ease; }
        a:hover { color: var(--cyan); }
        button, input, select { font: inherit; }
        img { max-width: 100%; display: block; }
        .site-shell { min-height: 100vh; }
        .side-nav {
            position: fixed;
            z-index: 20;
            inset: 0 auto 0 0;
            width: var(--sidebar);
            padding: 30px 22px 24px;
            background: #0e151d;
            border-right: 1px solid var(--line);
            display: flex;
            flex-direction: column;
        }
        .brand {
            display: flex;
            align-items: center;
            gap: 11px;
            margin-bottom: 45px;
            color: var(--text);
            font-weight: 800;
            letter-spacing: 0;
            line-height: 1.35;
        }
        .brand-mark {
            width: 30px;
            height: 30px;
            display: grid;
            place-items: center;
            color: #071117;
            background: var(--cyan);
            border-radius: 6px;
            font-weight: 900;
            box-shadow: 5px 5px 0 rgba(244, 184, 96, .22);
        }
        .brand-text { max-width: 145px; }
        .nav-group { display: flex; flex-direction: column; gap: 8px; }
        .nav-label, .side-note {
            color: #6e808a;
            font-size: 11px;
            letter-spacing: .12em;
        }
        .nav-label { margin-bottom: 8px; }
        .nav-item-link {
            display: flex;
            align-items: center;
            gap: 11px;
            min-height: 43px;
            padding: 9px 11px;
            color: var(--muted);
            border-left: 2px solid transparent;
            border-radius: 0 6px 6px 0;
        }
        .nav-item-link:hover { background: #17232e; color: var(--text); transform: translateX(2px); }
        .nav-item-link.active {
            color: var(--cyan);
            background: rgba(83, 224, 208, .08);
            border-left-color: var(--cyan);
        }
        .dot { width: 6px; height: 6px; border-radius: 50%; background: currentColor; flex: 0 0 auto; }
        .side-bottom { margin-top: auto; padding-top: 20px; border-top: 1px solid var(--line); }
        .side-note { line-height: 1.7; letter-spacing: 0; }
        .content-area { margin-left: var(--sidebar); }
        .mobile-bar { display: none; }
        .site-container { width: min(1160px, calc(100% - 64px)); margin: 0 auto; }
        .breadcrumb-row { padding-top: 42px; color: var(--muted); font-size: 13px; }
        .breadcrumb-row span { color: var(--cyan); }
        .hero {
            position: relative;
            padding: 48px 0 70px;
            border-bottom: 1px solid var(--line);
        }
        .hero::after {
            content: "";
            position: absolute;
            right: 6%;
            top: 48px;
            width: 28%;
            height: 2px;
            background: linear-gradient(90deg, transparent, var(--cyan), var(--amber));
        }
        .eyebrow, .status-tag, .topic-tag {
            display: inline-flex;
            align-items: center;
            gap: 7px;
            border: 1px solid rgba(83, 224, 208, .35);
            color: var(--cyan);
            background: rgba(83, 224, 208, .07);
            border-radius: 4px;
            padding: 3px 9px;
            font-size: 12px;
            line-height: 1.5;
        }
        h1, h2, h3 { margin: 0; color: var(--text); font-weight: 800; line-height: 1.25; }
        h1 { max-width: 760px; margin-top: 19px; font-size: clamp(32px, 4vw, 58px); }
        h2 { font-size: clamp(24px, 3vw, 36px); }
        h3 { font-size: 18px; }
        .hero-copy { max-width: 700px; margin: 21px 0 28px; color: var(--muted); font-size: 17px; }
        .hero-actions { display: flex; flex-wrap: wrap; gap: 12px; }
        .btn-main, .btn-line {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            min-height: 44px;
            padding: 9px 18px;
            border-radius: 5px;
            border: 1px solid transparent;
            font-weight: 700;
        }
        .btn-main { background: var(--cyan); color: #071117; }
        .btn-main:hover { color: #071117; background: #8af1e5; transform: translateY(-2px); box-shadow: 0 8px 20px rgba(83,224,208,.18); }
        .btn-line { color: var(--text); border-color: var(--line); background: #121b24; }
        .btn-line:hover { color: var(--cyan); border-color: var(--cyan-deep); transform: translateY(-2px); }
        .btn-main:focus-visible, .btn-line:focus-visible, a:focus-visible, input:focus-visible, select:focus-visible, button:focus-visible {
            outline: 3px solid rgba(244, 184, 96, .75);
            outline-offset: 3px;
        }
        .section { padding: 72px 0; }
        .section-head { display: flex; justify-content: space-between; align-items: end; gap: 24px; margin-bottom: 26px; }
        .section-head p { max-width: 560px; color: var(--muted); margin: 0; }
        .tool-panel {
            padding: 22px;
            background: var(--panel);
            border: 1px solid var(--line);
            border-top: 2px solid var(--cyan-deep);
            border-radius: var(--radius);
            box-shadow: var(--shadow);
        }
        .tool-label { display: block; margin-bottom: 8px; color: var(--text); font-size: 13px; font-weight: 700; }
        .search-row { display: flex; gap: 10px; }
        .form-control, .form-select {
            min-height: 44px;
            color: var(--text);
            background: #0d151d;
            border: 1px solid var(--line);
            border-radius: 5px;
        }
        .form-control::placeholder { color: #71818a; }
        .form-control:focus, .form-select:focus { color: var(--text); background: #0d151d; border-color: var(--cyan); box-shadow: 0 0 0 3px rgba(83,224,208,.12); }
        .form-select { padding-left: 12px; }
        .filter-line { display: flex; flex-wrap: wrap; gap: 9px; margin-top: 17px; }
        .filter-chip {
            cursor: pointer;
            padding: 6px 12px;
            border: 1px solid var(--line);
            color: var(--muted);
            background: #111923;
            border-radius: 4px;
            font-size: 13px;
        }
        .filter-chip:hover, .filter-chip.selected { color: var(--cyan); border-color: var(--cyan-deep); background: rgba(83,224,208,.08); }
        .result-count { margin-top: 15px; color: var(--muted); font-size: 13px; }
        .result-count strong { color: var(--amber); }
        .entry-list { display: grid; gap: 12px; }
        .entry {
            display: grid;
            grid-template-columns: 48px minmax(0, 1fr) auto;
            align-items: center;
            gap: 18px;
            padding: 20px;
            background: var(--panel);
            border: 1px solid var(--line);
            border-radius: var(--radius);
            transition: transform .2s ease, border-color .2s ease, background .2s ease;
        }
        .entry:hover { transform: translateX(4px); border-color: var(--cyan-deep); background: var(--panel-2); }
        .entry-index { color: var(--amber); font-size: 20px; font-weight: 800; }
        .entry h3 { margin-bottom: 5px; }
        .entry p { color: var(--muted); margin: 0; font-size: 14px; }
        .entry-meta { display: flex; flex-wrap: wrap; gap: 7px; margin-top: 9px; }
        .topic-tag { color: #b7c7ca; border-color: #364853; background: #111a22; font-size: 11px; }
        .entry-action { color: var(--cyan); white-space: nowrap; font-size: 13px; font-weight: 700; }
        .aside-panel {
            padding: 24px;
            background: #101922;
            border-left: 3px solid var(--amber);
            border-radius: 0 var(--radius) var(--radius) 0;
        }
        .aside-panel h3 { margin-bottom: 13px; }
        .aside-panel p { color: var(--muted); margin: 0 0 16px; font-size: 14px; }
        .check-list { margin: 0; padding: 0; list-style: none; }
        .check-list li { position: relative; padding: 10px 0 10px 25px; border-top: 1px solid var(--line); color: #c6d2d4; font-size: 14px; }
        .check-list li::before { content: "✓"; position: absolute; left: 0; color: var(--green); font-weight: 800; }
        .stat-band { background: #111a22; border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
        .stat-cell { padding: 25px 20px; border-right: 1px solid var(--line); }
        .stat-cell:last-child { border-right: 0; }
        .stat-number { display: block; color: var(--cyan); font-size: 29px; font-weight: 800; line-height: 1; margin-bottom: 8px; }
        .stat-cell p { color: var(--muted); margin: 0; font-size: 13px; }
        .mini-note { color: var(--muted); font-size: 13px; margin-top: 15px; }
        .accordion { --bs-accordion-bg: transparent; --bs-accordion-border-color: var(--line); --bs-accordion-color: var(--text); }
        .accordion-item { margin-bottom: 10px; background: var(--panel); border: 1px solid var(--line) !important; border-radius: var(--radius) !important; overflow: hidden; }
        .accordion-button { color: var(--text); background: var(--panel); box-shadow: none !important; font-weight: 700; padding: 18px 20px; }
        .accordion-button:not(.collapsed) { color: var(--cyan); background: #192630; }
        .accordion-button::after { filter: invert(1) brightness(.8); }
        .accordion-body { color: var(--muted); padding: 0 20px 20px; }
        .cta {
            position: relative;
            padding: 40px;
            overflow: hidden;
            background: #16252b;
            border: 1px solid var(--cyan-deep);
            border-radius: var(--radius);
        }
        .cta::before { content: ""; position: absolute; inset: 0 auto 0 0; width: 5px; background: linear-gradient(var(--cyan), var(--amber)); }
        .cta h2 { max-width: 650px; }
        .cta p { max-width: 680px; color: var(--muted); margin: 15px 0 23px; }
        .site-footer { padding: 42px 0 30px; background: #080d12; border-top: 1px solid var(--line); }
        .footer-grid { display: flex; justify-content: space-between; gap: 40px; }
        .footer-brand { color: var(--text); font-size: 19px; font-weight: 800; margin-bottom: 9px; }
        .footer-grid p { max-width: 450px; color: var(--muted); margin: 0 0 17px; font-size: 13px; }
        .copyright { color: #687780; font-size: 12px; }
        .footer-links { display: flex; flex-wrap: wrap; align-content: start; gap: 12px 25px; color: var(--muted); font-size: 13px; }
        .footer-links a:hover { color: var(--cyan); }
        .empty-state { display: none; padding: 30px; text-align: center; color: var(--muted); background: #101821; border: 1px dashed var(--line); border-radius: var(--radius); }
        @media (max-width: 991px) {
            :root { --sidebar: 205px; }
            .side-nav { padding-left: 16px; padding-right: 16px; }
            .site-container { width: min(100% - 40px, 900px); }
            .entry { grid-template-columns: 38px minmax(0, 1fr); }
            .entry-action { grid-column: 2; }
        }
        @media (max-width: 767px) {
            .side-nav { display: none; }
            .content-area { margin-left: 0; padding-top: 68px; }
            .mobile-bar {
                position: fixed; z-index: 30; inset: 0 0 auto 0;
                height: 68px; display: flex; align-items: center; justify-content: space-between;
                padding: 0 18px; background: #0e151d; border-bottom: 1px solid var(--line);
            }
            .mobile-brand { display: flex; align-items: center; gap: 9px; font-size: 14px; font-weight: 800; }
            .mobile-menu {
                color: var(--text); background: transparent; border: 1px solid var(--line);
                border-radius: 5px; width: 42px; height: 38px;
            }
            .mobile-menu:hover { color: var(--cyan); border-color: var(--cyan); }
            .mobile-drawer { display: none; position: fixed; z-index: 25; top: 68px; left: 0; right: 0; padding: 16px 18px; background: #101922; border-bottom: 1px solid var(--line); }
            .mobile-drawer.open { display: block; }
            .mobile-drawer .nav-item-link { border-left: 0; border-bottom: 1px solid var(--line); }
            .site-container { width: min(100% - 32px, 620px); }
            .breadcrumb-row { padding-top: 25px; }
            .hero { padding: 32px 0 48px; }
            .hero::after { display: none; }
            h1 { font-size: 34px; }
            .hero-copy { font-size: 15px; }
            .section { padding: 50px 0; }
            .section-head { display: block; }
            .section-head p { margin-top: 12px; }
            .search-row { display: grid; grid-template-columns: 1fr; }
            .entry { padding: 17px 15px; gap: 12px; }
            .entry p { font-size: 13px; }
            .stat-cell { border-right: 0; border-bottom: 1px solid var(--line); }
            .stat-cell:last-child { border-bottom: 0; }
            .cta { padding: 30px 23px; }
            .footer-grid { display: block; }
            .footer-links { margin-top: 25px; }
        }
        @media (prefers-reduced-motion: reduce) {
            *, *::before, *::after { scroll-behavior: auto !important; transition: none !important; }
        }

/* roulang page: category2 */
:root {
      --bg: #101315;
      --bg-deep: #0b0e10;
      --panel: #171c1f;
      --panel-soft: #1d2427;
      --panel-light: #252d30;
      --line: #303a3d;
      --text: #f2f4ed;
      --muted: #9da9a8;
      --subtle: #6f7c7b;
      --lime: #c4ed68;
      --lime-dark: #8dbd39;
      --cyan: #64d5c4;
      --orange: #f5a35b;
      --red: #ff7a63;
      --radius: 7px;
      --shadow: 0 16px 42px rgba(0,0,0,.23);
      --sidebar: 244px;
    }

    *, *::before, *::after { box-sizing: border-box; }
    html { scroll-behavior: smooth; }
    body {
      margin: 0;
      color: var(--text);
      background: var(--bg);
      font-family: "Noto Sans SC", "Microsoft YaHei", "PingFang SC", Arial, sans-serif;
      font-size: 15px;
      line-height: 1.75;
      overflow-x: hidden;
    }
    a { color: inherit; text-decoration: none; }
    a:hover { color: var(--lime); }
    button, input, select { font: inherit; }
    button { cursor: pointer; }
    img { max-width: 100%; display: block; }
    :focus-visible { outline: 3px solid rgba(196,237,104,.7); outline-offset: 3px; }

    .side-shell {
      position: fixed;
      z-index: 20;
      inset: 0 auto 0 0;
      width: var(--sidebar);
      padding: 28px 18px 22px;
      background: #0d1113;
      border-right: 1px solid var(--line);
      display: flex;
      flex-direction: column;
    }
    .brand {
      display: block;
      padding: 0 12px 28px;
      border-bottom: 1px solid var(--line);
    }
    .brand-mark {
      display: inline-flex;
      align-items: center;
      gap: 9px;
      color: var(--lime);
      font-size: 17px;
      font-weight: 800;
      line-height: 1.35;
    }
    .brand-mark i {
      width: 10px;
      height: 10px;
      background: var(--lime);
      box-shadow: 0 0 0 4px rgba(196,237,104,.12);
      transform: rotate(45deg);
    }
    .brand small {
      display: block;
      margin-top: 9px;
      color: var(--subtle);
      font-size: 11px;
      letter-spacing: 1px;
    }
    .nav-group { padding: 26px 0; }
    .nav-label {
      display: block;
      padding: 0 12px 10px;
      color: var(--subtle);
      font-size: 11px;
      letter-spacing: 1.5px;
    }
    .nav-item-link {
      position: relative;
      display: flex;
      align-items: center;
      gap: 11px;
      min-height: 44px;
      padding: 8px 12px;
      margin: 5px 0;
      color: var(--muted);
      border: 1px solid transparent;
      border-radius: var(--radius);
      transition: .2s ease;
    }
    .nav-item-link .dot {
      width: 6px;
      height: 6px;
      flex: 0 0 auto;
      background: var(--subtle);
      border-radius: 50%;
    }
    .nav-item-link:hover,
    .nav-item-link.active {
      color: var(--text);
      background: var(--panel);
      border-color: var(--line);
    }
    .nav-item-link.active { color: var(--lime); }
    .nav-item-link.active::before {
      content: "";
      position: absolute;
      left: -19px;
      top: 8px;
      bottom: 8px;
      width: 3px;
      background: var(--lime);
    }
    .nav-item-link.active .dot { background: var(--lime); box-shadow: 0 0 10px var(--lime); }
    .side-note {
      margin-top: auto;
      padding: 15px 12px;
      color: var(--muted);
      font-size: 12px;
      border-top: 1px solid var(--line);
    }
    .side-note strong { display: block; color: var(--text); margin-bottom: 4px; }

    .mobile-bar {
      display: none;
      position: relative;
      z-index: 30;
      min-height: 68px;
      padding: 14px 18px;
      align-items: center;
      justify-content: space-between;
      background: #0d1113;
      border-bottom: 1px solid var(--line);
    }
    .menu-toggle {
      width: 42px;
      height: 38px;
      color: var(--text);
      background: transparent;
      border: 1px solid var(--line);
      border-radius: var(--radius);
    }
    .main-shell { margin-left: var(--sidebar); min-height: 100vh; }
    .site-container { width: min(1180px, calc(100% - 72px)); margin: 0 auto; }
    .section { padding: 92px 0; }
    .eyebrow {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      color: var(--lime);
      font-size: 12px;
      font-weight: 700;
      letter-spacing: 1.2px;
      text-transform: uppercase;
    }
    .eyebrow::before {
      content: "";
      width: 25px;
      height: 2px;
      background: var(--lime);
    }
    .section-heading { max-width: 700px; margin-bottom: 38px; }
    h1, h2, h3, p { overflow-wrap: anywhere; }
    h1, h2, h3 { margin-top: 0; color: var(--text); font-weight: 800; line-height: 1.25; }
    h1 { max-width: 720px; margin: 20px 0 18px; font-size: clamp(34px, 4.5vw, 62px); }
    h2 { margin: 13px 0 12px; font-size: clamp(27px, 3vw, 40px); }
    h3 { margin-bottom: 8px; font-size: 18px; }
    p { color: var(--muted); margin: 0 0 15px; }

    .hero {
      position: relative;
      min-height: 650px;
      padding: 76px 0 70px;
      display: flex;
      align-items: center;
      background:
        linear-gradient(90deg, rgba(16,19,21,.99) 0%, rgba(16,19,21,.92) 48%, rgba(16,19,21,.76) 100%),
        linear-gradient(135deg, #28342e 0%, #171d1e 47%, #34231a 100%);
      border-bottom: 1px solid var(--line);
    }
    .hero::after {
      content: "";
      position: absolute;
      left: 0;
      right: 0;
      bottom: 0;
      height: 3px;
      background: linear-gradient(90deg, var(--lime), var(--cyan), transparent 75%);
    }
    .hero-grid { display: grid; grid-template-columns: minmax(0, 1.1fr) minmax(330px, .9fr); gap: 70px; align-items: center; }
    .hero-copy p { max-width: 620px; font-size: 17px; }
    .crumbs { color: var(--subtle); font-size: 13px; }
    .crumbs a { color: var(--muted); }
    .hero-actions { display: flex; gap: 12px; flex-wrap: wrap; margin-top: 30px; }
    .btn-main, .btn-ghost {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      min-height: 46px;
      padding: 9px 20px;
      border-radius: var(--radius);
      font-weight: 700;
      transition: .2s ease;
    }
    .btn-main { color: #11160f; background: var(--lime); border: 1px solid var(--lime); }
    .btn-main:hover { color: #101315; background: #d7f88d; transform: translateY(-2px); box-shadow: 0 8px 20px rgba(196,237,104,.18); }
    .btn-ghost { color: var(--text); background: transparent; border: 1px solid var(--line); }
    .btn-ghost:hover { color: var(--lime); border-color: var(--lime-dark); transform: translateY(-2px); }
    .flash-panel {
      position: relative;
      padding: 24px;
      background: var(--panel);
      border: 1px solid #45544b;
      border-radius: var(--radius);
      box-shadow: var(--shadow);
    }
    .flash-panel::before {
      content: "";
      position: absolute;
      inset: -1px;
      z-index: -1;
      border-radius: inherit;
      background: linear-gradient(135deg, rgba(196,237,104,.5), transparent 42%, rgba(100,213,196,.3));
    }
    .flash-top { display: flex; justify-content: space-between; align-items: center; gap: 12px; margin-bottom: 22px; }
    .status-badge, .tag {
      display: inline-flex;
      align-items: center;
      min-height: 25px;
      padding: 2px 9px;
      color: var(--lime);
      background: rgba(196,237,104,.1);
      border: 1px solid rgba(196,237,104,.32);
      border-radius: 4px;
      font-size: 12px;
    }
    .countdown { color: var(--orange); font-variant-numeric: tabular-nums; font-size: 13px; font-weight: 700; }
    .entry-card { padding: 20px 0; border-top: 1px solid var(--line); }
    .entry-card:first-of-type { border-top: 0; padding-top: 0; }
    .entry-card h3 { display: flex; justify-content: space-between; gap: 10px; }
    .entry-card h3 span { color: var(--cyan); font-size: 13px; font-weight: 600; }
    .entry-meta { display: flex; flex-wrap: wrap; gap: 8px; margin: 13px 0 16px; }
    .progress-line { height: 5px; background: #303a38; border-radius: 3px; overflow: hidden; }
    .progress-line span { display: block; width: 78%; height: 100%; background: linear-gradient(90deg, var(--lime), var(--cyan)); }
    .flash-cta { width: 100%; margin-top: 18px; }

    .filter-band { background: #13181a; border-bottom: 1px solid var(--line); }
    .filter-bar { display: grid; grid-template-columns: minmax(220px, 1fr) auto auto; gap: 12px; align-items: end; }
    .field-label { display: block; margin-bottom: 6px; color: var(--muted); font-size: 12px; }
    .input-wrap { position: relative; }
    .input-wrap input, .filter-select {
      width: 100%;
      height: 44px;
      padding: 8px 13px;
      color: var(--text);
      background: var(--bg-deep);
      border: 1px solid var(--line);
      border-radius: var(--radius);
    }
    .input-wrap input::placeholder { color: var(--subtle); }
    .input-wrap input:focus, .filter-select:focus { border-color: var(--lime-dark); outline: none; box-shadow: 0 0 0 3px rgba(196,237,104,.1); }
    .filter-select { min-width: 160px; }
    .filter-result { margin-top: 18px; color: var(--subtle); font-size: 13px; }

    .matrix { display: grid; grid-template-columns: 1.2fr .8fr; gap: 24px; align-items: start; }
    .result-list { border-top: 1px solid var(--line); }
    .result-item {
      display: grid;
      grid-template-columns: 44px minmax(0, 1fr) auto;
      gap: 18px;
      align-items: center;
      padding: 22px 0;
      border-bottom: 1px solid var(--line);
      transition: .2s ease;
    }
    .result-item:hover { padding-left: 8px; border-bottom-color: var(--lime-dark); }
    .item-index { color: var(--lime); font-size: 20px; font-weight: 800; }
    .item-title { margin-bottom: 4px; font-size: 17px; font-weight: 700; }
    .item-summary { margin: 0; color: var(--muted); font-size: 13px; }
    .item-tags { display: flex; flex-wrap: wrap; gap: 6px; margin-top: 8px; }
    .item-time { color: var(--subtle); font-size: 12px; text-align: right; white-space: nowrap; }
    .small-link { display: inline-flex; align-items: center; gap: 5px; color: var(--lime); font-size: 13px; font-weight: 700; }
    .side-panel { padding: 23px; background: var(--panel); border: 1px solid var(--line); border-radius: var(--radius); }
    .side-panel + .side-panel { margin-top: 18px; }
    .side-panel ul { list-style: none; padding: 0; margin: 17px 0 0; }
    .side-panel li { display: flex; justify-content: space-between; gap: 14px; padding: 10px 0; color: var(--muted); border-bottom: 1px solid var(--line); font-size: 13px; }
    .side-panel li:last-child { border-bottom: 0; }
    .side-panel li span { color: var(--lime); }

    .topic-grid { display: grid; grid-template-columns: repeat(12, 1fr); gap: 16px; }
    .topic-card { min-height: 190px; padding: 24px; background: var(--panel-soft); border: 1px solid var(--line); border-radius: var(--radius); transition: .2s ease; }
    .topic-card:nth-child(1) { grid-column: span 7; }
    .topic-card:nth-child(2) { grid-column: span 5; }
    .topic-card:nth-child(3) { grid-column: span 5; }
    .topic-card:nth-child(4) { grid-column: span 7; }
    .topic-card:hover { transform: translateY(-3px); border-color: var(--cyan); box-shadow: var(--shadow); }
    .topic-no { color: var(--orange); font-size: 12px; font-weight: 800; letter-spacing: 1px; }
    .topic-card p { font-size: 13px; }
    .topic-card .small-link { margin-top: 10px; }

    .compare { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
    .compare-block { padding: 22px; border-left: 3px solid var(--line); background: #141a1c; }
    .compare-block.good { border-color: var(--lime); }
    .compare-block h3 { font-size: 16px; }
    .compare-list { margin: 0; padding: 0; list-style: none; }
    .compare-list li { position: relative; padding: 8px 0 8px 22px; color: var(--muted); border-bottom: 1px solid var(--line); font-size: 13px; }
    .compare-list li::before { content: "＋"; position: absolute; left: 0; color: var(--lime); }
    .compare-block:first-child .compare-list li::before { content: "−"; color: var(--red); }

    .faq-wrap { max-width: 880px; }
    .accordion-item { margin-bottom: 10px; background: var(--panel); border: 1px solid var(--line); border-radius: var(--radius) !important; overflow: hidden; }
    .accordion-button { padding: 18px 20px; color: var(--text); background: var(--panel); box-shadow: none !important; font-weight: 700; }
    .accordion-button:not(.collapsed) { color: var(--lime); background: var(--panel-soft); }
    .accordion-button::after { filter: invert(1); }
    .accordion-body { padding: 0 20px 20px; color: var(--muted); font-size: 14px; background: var(--panel-soft); }
    .cta-band { padding: 62px 0; background: #17211d; border-top: 1px solid #344a3a; border-bottom: 1px solid #344a3a; }
    .cta-content { display: flex; align-items: center; justify-content: space-between; gap: 30px; }
    .cta-content h2 { margin-bottom: 8px; }
    .cta-content p { max-width: 660px; margin-bottom: 0; }
    .site-footer { padding: 48px 0 35px; background: #0b0e10; }
    .footer-grid { display: grid; grid-template-columns: 1fr auto; gap: 38px; align-items: start; }
    .footer-brand { color: var(--text); font-size: 18px; font-weight: 800; }
    .footer-grid p { max-width: 480px; margin: 10px 0 16px; font-size: 13px; }
    .copyright { color: var(--subtle); font-size: 12px; }
    .footer-links { display: flex; flex-wrap: wrap; gap: 22px; color: var(--muted); font-size: 13px; }
    .footer-links a:hover { color: var(--lime); }

    @media (max-width: 1100px) {
      :root { --sidebar: 210px; }
      .site-container { width: min(100% - 48px, 980px); }
      .hero-grid { gap: 38px; }
    }
    @media (max-width: 820px) {
      .side-shell { display: none; }
      .mobile-bar { display: flex; }
      .main-shell { margin-left: 0; }
      .site-container { width: min(100% - 36px, 700px); }
      .hero { min-height: auto; padding: 52px 0 64px; }
      .hero-grid, .matrix { grid-template-columns: 1fr; }
      .hero-grid { gap: 42px; }
      .section { padding: 68px 0; }
      .filter-bar { grid-template-columns: 1fr 1fr; }
      .filter-bar > div:first-child { grid-column: 1 / -1; }
      .cta-content { align-items: flex-start; flex-direction: column; }
    }
    @media (max-width: 560px) {
      .site-container { width: calc(100% - 30px); }
      h1 { font-size: 35px; }
      h2 { font-size: 28px; }
      .hero-copy p { font-size: 15px; }
      .flash-panel { padding: 19px; }
      .filter-bar { grid-template-columns: 1fr; }
      .filter-bar > div:first-child { grid-column: auto; }
      .filter-select { min-width: 0; }
      .result-item { grid-template-columns: 30px minmax(0, 1fr); gap: 12px; }
      .result-item .item-time { grid-column: 2; text-align: left; }
      .topic-grid { display: block; }
      .topic-card { margin-bottom: 13px; min-height: 0; }
      .compare { grid-template-columns: 1fr; }
      .footer-grid { grid-template-columns: 1fr; gap: 25px; }
      .footer-links { flex-direction: column; gap: 8px; }
      .hero-actions .btn-main, .hero-actions .btn-ghost { width: 100%; }
    }
    @media (prefers-reduced-motion: reduce) {
      *, *::before, *::after { scroll-behavior: auto !important; transition: none !important; }
    }