/* roulang page: index */
:root{
      --ink:#202521;
      --muted:#6b716a;
      --paper:#f7f6f0;
      --soft:#eeeee5;
      --line:#d9dbd0;
      --moss:#566b4d;
      --moss-dark:#354834;
      --ochre:#c48c42;
      --night:#202720;
      --white:#fffefa;
      --radius:18px;
      --shadow:0 18px 45px rgba(32,37,33,.08);
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{margin:0;background:var(--paper);color:var(--ink);font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;line-height:1.7}
    a{text-decoration:none;color:inherit}
    button,input{font:inherit}
    button{cursor:pointer}
    .container{width:min(1180px,calc(100% - 40px));margin:auto}
    .site-header{position:sticky;top:0;z-index:30;background:rgba(247,246,240,.96);border-bottom:1px solid var(--line);backdrop-filter:blur(10px)}
    .nav-wrap{height:78px;display:flex;align-items:center;gap:24px}
    .brand{display:flex;align-items:center;gap:11px;min-width:235px;font-weight:800;letter-spacing:-.04em;font-size:18px}
    .brand-mark{width:34px;height:34px;border-radius:10px;background:var(--moss-dark);position:relative;display:grid;place-items:center;color:#e7e5c8;font-size:12px}
    .brand-mark:after{content:"";width:9px;height:9px;border:2px solid var(--ochre);border-radius:50%}
    .nav-search{height:46px;flex:1;max-width:470px;display:flex;align-items:center;border:1px solid var(--line);background:var(--white);border-radius:12px;padding:0 8px 0 15px;transition:.25s}
    .nav-search:focus-within{border-color:var(--moss);box-shadow:0 0 0 4px rgba(86,107,77,.12)}
    .nav-search svg{color:var(--muted);flex:none}
    .nav-search input{border:0;outline:0;background:transparent;width:100%;padding:0 10px;color:var(--ink)}
    .search-submit{border:0;border-radius:9px;background:var(--moss-dark);color:white;height:34px;padding:0 14px;font-size:13px}
    .search-submit:hover{background:var(--moss)}
    .nav-links{display:flex;align-items:center;gap:6px;margin-left:auto}
    .nav-link{padding:9px 12px;border-radius:9px;color:var(--muted);font-size:14px;transition:.2s}
    .nav-link:hover,.nav-link.active{background:#e5e8dc;color:var(--moss-dark)}
    .menu-btn{display:none;border:1px solid var(--line);background:var(--white);border-radius:10px;width:44px;height:44px}
    .hero{padding:82px 0 76px;position:relative;overflow:hidden}
    .hero:before{content:"";position:absolute;right:-100px;top:20px;width:520px;height:520px;border:1px solid #dfe1d5;border-radius:50%;opacity:.8}
    .hero-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:70px;align-items:end;position:relative}
    .eyebrow,.section-kicker{font-family:ui-monospace,SFMono-Regular,Menlo,monospace;color:var(--ochre);font-size:12px;letter-spacing:.12em;text-transform:uppercase}
    h1,h2,h3,p{margin-top:0}
    h1{font-size:clamp(44px,6.2vw,82px);line-height:1.06;letter-spacing:-.075em;margin:17px 0 25px;max-width:760px}
    .hero-copy{font-size:18px;color:var(--muted);max-width:620px}
    .actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:31px}
    .btn{min-height:46px;padding:0 20px;border-radius:10px;display:inline-flex;align-items:center;justify-content:center;gap:8px;border:1px solid transparent;font-weight:700;font-size:14px;transition:.25s}
    .btn-primary{background:var(--moss-dark);color:#fff}
    .btn-primary:hover{background:var(--moss);transform:translateY(-2px)}
    .btn-secondary{border-color:var(--line);background:var(--white);color:var(--moss-dark)}
    .btn-secondary:hover{border-color:var(--moss);transform:translateY(-2px)}
    .hero-panel{background:var(--night);color:#f6f4e8;border-radius:20px;padding:28px;min-height:290px;position:relative;box-shadow:var(--shadow)}
    .panel-top{display:flex;justify-content:space-between;align-items:center;border-bottom:1px solid rgba(255,255,255,.14);padding-bottom:18px}
    .panel-title{font-size:16px;font-weight:700}
    .panel-code{font-family:monospace;color:#c5c6a2;font-size:12px}
    .node-map{height:150px;margin:20px 0;position:relative;background:linear-gradient(135deg,transparent 49%,rgba(228,211,159,.27) 50%,transparent 51%),linear-gradient(30deg,transparent 49%,rgba(228,211,159,.18) 50%,transparent 51%);border-bottom:1px solid rgba(255,255,255,.2)}
    .node{position:absolute;width:11px;height:11px;border-radius:50%;background:var(--ochre);box-shadow:0 0 0 6px rgba(196,140,66,.16)}
    .node.one{left:16%;top:68%}.node.two{left:43%;top:28%}.node.three{left:72%;top:54%}.node.four{left:87%;top:15%}
    .panel-foot{display:flex;justify-content:space-between;color:#c8cbbd;font-size:12px}
    .path{display:flex;align-items:center;gap:12px;margin-top:52px;color:var(--muted);font-size:12px}
    .path-line{height:1px;width:130px;background:var(--ochre);position:relative}
    .path-line:after{content:"";position:absolute;right:0;top:-4px;width:9px;height:9px;border-right:1px solid var(--ochre);border-top:1px solid var(--ochre);transform:rotate(45deg)}
    section{padding:86px 0}
    .section-head{display:flex;justify-content:space-between;gap:30px;align-items:end;margin-bottom:32px}
    h2{font-size:clamp(30px,4vw,48px);line-height:1.12;letter-spacing:-.055em;margin:10px 0 0}
    .section-intro{max-width:470px;color:var(--muted);font-size:15px}
    .feature-layout{display:grid;grid-template-columns:1.4fr .8fr .8fr;gap:14px}
    .feature-card,.topic-card,.scene-card,.result-card{border:1px solid var(--line);background:var(--white);border-radius:var(--radius);transition:.25s}
    .feature-card:hover,.topic-card:hover,.scene-card:hover,.result-card:hover{transform:translateY(-4px);border-color:#aeb9a2;box-shadow:var(--shadow)}
    .feature-card{padding:30px;min-height:270px;background:var(--moss-dark);color:#fff}
    .feature-card h3{font-size:29px;line-height:1.2;letter-spacing:-.04em;margin:55px 0 12px}
    .feature-card p{color:#d8decf;font-size:14px}
    .small-card{padding:24px;min-height:270px;display:flex;flex-direction:column;justify-content:space-between}
    .small-card h3{font-size:21px;line-height:1.3;margin:20px 0 10px}
    .small-card p{font-size:13px;color:var(--muted)}
    .tag{display:inline-flex;align-items:center;border-radius:99px;padding:4px 9px;background:#e9eddf;color:var(--moss-dark);font-size:12px}
    .tag.gold{background:#f3e8d4;color:#875c24}
    .arrow{font-size:24px;color:var(--ochre);align-self:flex-end}
    .scenes{background:var(--soft)}
    .scene-track{display:grid;grid-template-columns:repeat(4,1fr);gap:0;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
    .scene-card{border:0;border-radius:0;background:transparent;padding:28px 22px;position:relative}
    .scene-card:not(:last-child){border-right:1px solid var(--line)}
    .scene-no{font-family:monospace;color:var(--ochre);font-size:13px}
    .scene-card h3{font-size:20px;margin:34px 0 8px}
    .scene-card p{font-size:13px;color:var(--muted);margin-bottom:22px}
    .sample{font-size:12px;border-left:2px solid var(--moss);padding-left:10px;color:var(--moss-dark)}
    .results{display:grid;grid-template-columns:1.15fr .85fr;gap:16px}
    .result-feature{background:#e6e9dd;border-radius:var(--radius);padding:30px;min-height:330px;position:relative}
    .result-feature h3{font-size:32px;max-width:480px;line-height:1.2;margin:70px 0 14px;letter-spacing:-.05em}
    .result-feature p{max-width:430px;color:var(--muted);font-size:14px}
    .coordinate{position:absolute;right:28px;top:28px;font:12px monospace;color:var(--ochre)}
    .result-list{border-top:1px solid var(--line)}
    .result-row{display:grid;grid-template-columns:42px 1fr auto;gap:16px;align-items:center;padding:21px 0;border-bottom:1px solid var(--line)}
    .result-num{font:14px monospace;color:var(--ochre)}
    .result-row h3{font-size:17px;margin:0 0 4px}
    .result-row p{font-size:12px;color:var(--muted);margin:0}
    .row-arrow{font-size:20px;color:var(--moss)}
    .access-band{background:var(--night);color:#fff;padding:72px 0}
    .access-grid{display:grid;grid-template-columns:.8fr 1.2fr;gap:70px;align-items:center}
    .access-band h2{color:#fff}
    .access-band .section-intro{color:#c9cec0}
    .access-list{display:flex;flex-direction:column}
    .access-item{display:flex;justify-content:space-between;align-items:center;padding:18px 0;border-bottom:1px solid rgba(255,255,255,.18)}
    .access-item span{color:#c9cec0;font-size:13px}
    .faq-grid{display:grid;grid-template-columns:.7fr 1.3fr;gap:70px}
    .faq-item{border-top:1px solid var(--line)}
    .faq-q{width:100%;min-height:64px;border:0;background:none;display:flex;justify-content:space-between;align-items:center;text-align:left;font-weight:700;color:var(--ink)}
    .faq-q span{font-size:22px;color:var(--ochre);transition:.25s}
    .faq-a{max-height:0;overflow:hidden;color:var(--muted);font-size:14px;transition:max-height .35s ease}
    .faq-item.open .faq-a{max-height:130px;padding:0 35px 20px 0}
    .faq-item.open .faq-q span{transform:rotate(45deg)}
    .cta{padding:70px 0}
    .cta-box{background:#dfe5d4;border-radius:22px;padding:45px;display:flex;justify-content:space-between;align-items:center;gap:30px}
    .cta-box h2{max-width:600px}
    .cta-form{display:flex;gap:8px;min-width:330px}
    .cta-form input{height:46px;min-width:0;flex:1;border:1px solid #bcc6b1;background:var(--white);border-radius:10px;padding:0 14px;outline:0}
    .cta-form input:focus{border-color:var(--moss);box-shadow:0 0 0 3px rgba(86,107,77,.14)}
    footer{background:var(--night);color:#eef0e4;padding:58px 0 26px}
    .footer-grid{display:grid;grid-template-columns:1.2fr .8fr .8fr;gap:60px;padding-bottom:50px}
    footer h3{font-size:17px;margin:0 0 15px}
    footer p,footer a{font-size:13px;color:#bfc6b8}
    footer a:hover{color:#fff}
    .footer-links{display:flex;flex-direction:column;gap:8px}
    .copyright{border-top:1px solid rgba(255,255,255,.14);padding-top:20px;color:#9da69a;font-size:12px;display:flex;justify-content:space-between}
    :focus-visible{outline:3px solid rgba(196,140,66,.65);outline-offset:3px}
    @media(max-width:900px){
      .brand{min-width:auto}.nav-search{max-width:none}.nav-links{display:none}.menu-btn{display:block}
      .hero-grid,.access-grid,.faq-grid,.results{grid-template-columns:1fr;gap:35px}
      .feature-layout{grid-template-columns:1fr 1fr}.feature-card{grid-row:span 2}
      .scene-track{grid-template-columns:1fr 1fr}.scene-card:nth-child(2){border-right:0}.scene-card:nth-child(-n+2){border-bottom:1px solid var(--line)}
      .cta-box{display:block}.cta-form{margin-top:25px}
    }
    @media(max-width:600px){
      .container{width:min(100% - 28px,1180px)}.nav-wrap{height:68px;gap:10px}.brand{font-size:15px;gap:7px}.brand-mark{width:30px;height:30px}
      .nav-search{display:none}.hero{padding:58px 0 55px}h1{font-size:47px}.hero-copy{font-size:16px}.hero-panel{margin-top:10px}
      section{padding:60px 0}.section-head{display:block}.section-intro{margin-top:15px}.feature-layout{display:block}.feature-card,.small-card{min-height:auto;margin-bottom:12px}.small-card{min-height:190px}
      .scene-track{display:block}.scene-card{border-right:0!important;border-bottom:1px solid var(--line)!important}.scene-card:last-child{border-bottom:0!important}
      .result-feature{min-height:260px}.result-feature h3{margin-top:55px;font-size:27px}.cta{padding:55px 0}.cta-box{padding:30px 22px}.cta-form{display:block;min-width:0}.cta-form input,.cta-form button{width:100%;margin-bottom:8px}
      .footer-grid{grid-template-columns:1fr;gap:30px;padding-bottom:35px}.copyright{display:block}.copyright span{display:block;margin-top:8px}
    }
    @media(prefers-reduced-motion:reduce){*,*:before,*:after{scroll-behavior:auto!important;transition:none!important;animation:none!important}}

/* roulang page: category2 */
:root{
      --ink:#202521;
      --muted:#6b716a;
      --paper:#f7f6f0;
      --soft:#eeeee5;
      --line:#d9dbd0;
      --moss:#566b4d;
      --moss-dark:#354834;
      --ochre:#c48c42;
      --night:#202720;
      --white:#fffefa;
      --radius:18px;
      --shadow:0 18px 45px rgba(32,37,33,.08);
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{margin:0;background:var(--paper);color:var(--ink);font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;line-height:1.7}
    a{text-decoration:none;color:inherit}
    button,input{font:inherit}
    button{cursor:pointer}
    .container{width:min(1180px,calc(100% - 40px));margin:auto}
    .site-header{position:sticky;top:0;z-index:30;background:rgba(247,246,240,.96);border-bottom:1px solid var(--line);backdrop-filter:blur(10px)}
    .nav-wrap{height:78px;display:flex;align-items:center;gap:24px}
    .brand{display:flex;align-items:center;gap:11px;min-width:235px;font-weight:800;letter-spacing:-.04em;font-size:18px}
    .brand-mark{width:34px;height:34px;border-radius:10px;background:var(--moss-dark);position:relative;display:grid;place-items:center;color:#e7e5c8;font-size:12px}
    .brand-mark:after{content:"";width:9px;height:9px;border:2px solid var(--ochre);border-radius:50%}
    .nav-search{height:46px;flex:1;max-width:470px;display:flex;align-items:center;border:1px solid var(--line);background:var(--white);border-radius:12px;padding:0 8px 0 15px;transition:.25s}
    .nav-search:focus-within{border-color:var(--moss);box-shadow:0 0 0 4px rgba(86,107,77,.12)}
    .nav-search svg{color:var(--muted);flex:none}
    .nav-search input{border:0;outline:0;background:transparent;width:100%;padding:0 10px;color:var(--ink)}
    .search-submit{border:0;border-radius:9px;background:var(--moss-dark);color:white;height:34px;padding:0 14px;font-size:13px}
    .search-submit:hover{background:var(--moss)}
    .nav-links{display:flex;align-items:center;gap:6px;margin-left:auto}
    .nav-link{padding:9px 12px;border-radius:9px;color:var(--muted);font-size:14px;transition:.2s}
    .nav-link:hover,.nav-link.active{background:#e5e8dc;color:var(--moss-dark)}
    .menu-btn{display:none;border:1px solid var(--line);background:var(--white);border-radius:10px;width:44px;height:44px}
    .eyebrow,.section-kicker{font-family:ui-monospace,SFMono-Regular,Menlo,monospace;color:var(--ochre);font-size:12px;letter-spacing:.12em;text-transform:uppercase}
    .page-intro{padding:74px 0 48px;border-bottom:1px solid var(--line)}
    .intro-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:70px;align-items:end}
    h1{font-size:clamp(42px,6vw,78px);line-height:1.08;letter-spacing:-.07em;margin:18px 0 22px;font-weight:850}
    .lead{font-size:18px;color:var(--muted);max-width:650px}
    .index-panel{background:var(--night);color:#f6f4e8;border-radius:20px;padding:28px;min-height:210px;position:relative;overflow:hidden}
    .index-panel:after{content:"";position:absolute;width:220px;height:220px;border:1px solid rgba(255,255,255,.16);border-radius:50%;right:-70px;bottom:-90px}
    .panel-label{color:#c9cec0;font-size:12px;letter-spacing:.12em}
    .panel-number{font-size:68px;line-height:1;margin:30px 0 8px;color:#e9e7cf}
    .panel-note{font-size:13px;color:#c9cec0}
    section{padding:78px 0}
    .section-head{display:flex;justify-content:space-between;gap:30px;align-items:end;margin-bottom:30px}
    .section-head h2{font-size:clamp(28px,4vw,46px);line-height:1.15;letter-spacing:-.055em;margin:10px 0 0}
    .section-intro{max-width:470px;color:var(--muted);font-size:15px}
    .filter-shell{display:grid;grid-template-columns:250px 1fr;gap:34px}
    .filter-rail{border-right:1px solid var(--line);padding-right:25px}
    .filter-rail h3{font-size:15px;margin:0 0 14px}
    .filter-list{display:flex;flex-direction:column;gap:7px}
    .filter-btn{border:0;background:transparent;text-align:left;padding:11px 13px;border-radius:10px;color:var(--muted);transition:.2s}
    .filter-btn:hover,.filter-btn.active{background:#e3e8da;color:var(--moss-dark);font-weight:700}
    .filter-tip{margin-top:36px;padding-top:18px;border-top:1px solid var(--line);color:var(--muted);font-size:13px}
    .content-area{min-width:0}
    .search-box{display:flex;align-items:center;gap:10px;background:var(--white);border:1px solid var(--line);border-radius:13px;padding:6px 8px 6px 16px;margin-bottom:24px;transition:.25s}
    .search-box:focus-within{border-color:var(--moss);box-shadow:0 0 0 4px rgba(86,107,77,.1)}
    .search-box input{border:0;outline:0;background:transparent;flex:1;min-width:0;padding:9px}
    .clear-btn{border:0;background:var(--soft);color:var(--muted);border-radius:8px;width:34px;height:34px}
    .result-count{font-size:13px;color:var(--muted);margin-bottom:14px}
    .result-grid{display:grid;grid-template-columns:1.25fr .75fr;gap:14px}
    .result-card{border:1px solid var(--line);background:var(--white);border-radius:var(--radius);padding:25px;transition:.25s}
    .result-card:hover{transform:translateY(-4px);border-color:#aeb9a2;box-shadow:var(--shadow)}
    .result-card.featured{background:var(--moss-dark);color:#fff;min-height:260px}
    .result-card.featured p,.result-card.featured .meta{color:#d8decf}
    .result-card h3{font-size:22px;line-height:1.3;margin:18px 0 10px;letter-spacing:-.035em}
    .result-card.featured h3{font-size:31px;max-width:470px}
    .result-card p{font-size:14px;color:var(--muted);margin:0 0 24px}
    .meta{display:flex;justify-content:space-between;gap:12px;color:var(--muted);font-size:12px;border-top:1px solid var(--line);padding-top:15px}
    .featured .meta{border-color:rgba(255,255,255,.2)}
    .tag{display:inline-flex;align-items:center;border-radius:99px;padding:4px 9px;background:#e9eddf;color:var(--moss-dark);font-size:12px}
    .tag.gold{background:#f3e8d4;color:#875c24}
    .path-section{background:var(--soft)}
    .path-grid{display:grid;grid-template-columns:repeat(4,1fr);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
    .path-item{padding:27px 22px;position:relative}
    .path-item:not(:last-child){border-right:1px solid var(--line)}
    .path-no{font-family:ui-monospace,monospace;color:var(--ochre);font-size:13px}
    .path-item h3{font-size:20px;margin:32px 0 8px}
    .path-item p{font-size:13px;color:var(--muted);margin:0}
    .path-arrow{position:absolute;right:17px;top:24px;color:var(--ochre);font-size:20px}
    .related-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px}
    .related-card{padding:28px;border:1px solid var(--line);border-radius:var(--radius);background:var(--white);display:flex;justify-content:space-between;align-items:end;transition:.25s}
    .related-card:hover{border-color:var(--moss);transform:translateY(-3px)}
    .related-card h3{font-size:24px;margin:12px 0 6px}
    .related-card p{font-size:13px;color:var(--muted);margin:0}
    .arrow{font-size:25px;color:var(--ochre)}
    .faq-grid{display:grid;grid-template-columns:.7fr 1.3fr;gap:70px}
    .faq-item{border-top:1px solid var(--line)}
    .faq-q{width:100%;min-height:64px;border:0;background:none;display:flex;justify-content:space-between;align-items:center;text-align:left;font-weight:700;color:var(--ink)}
    .faq-q span{font-size:22px;color:var(--ochre);transition:.25s}
    .faq-a{max-height:0;overflow:hidden;color:var(--muted);font-size:14px;transition:max-height .35s ease}
    .faq-item.open .faq-a{max-height:140px;padding:0 35px 20px 0}
    .faq-item.open .faq-q span{transform:rotate(45deg)}
    .cta{padding:70px 0}
    .cta-box{background:#dfe5d4;border-radius:22px;padding:45px;display:flex;justify-content:space-between;align-items:center;gap:30px}
    .cta-box h2{font-size:clamp(28px,4vw,44px);line-height:1.15;letter-spacing:-.05em;margin:10px 0}
    .cta-box p{color:var(--muted);margin:0;max-width:540px}
    .btn{min-height:46px;padding:0 20px;border-radius:10px;display:inline-flex;align-items:center;justify-content:center;gap:8px;border:1px solid transparent;font-weight:700;font-size:14px;transition:.25s}
    .btn-primary{background:var(--moss-dark);color:#fff}
    .btn-primary:hover{background:var(--moss);transform:translateY(-2px)}
    .btn-secondary{border-color:var(--line);background:var(--white);color:var(--moss-dark)}
    .btn-secondary:hover{border-color:var(--moss);transform:translateY(-2px)}
    footer{background:var(--night);color:#f6f4e8;padding:58px 0 22px}
    .footer-grid{display:grid;grid-template-columns:1.4fr .8fr .8fr;gap:50px;padding-bottom:48px}
    footer .brand{color:#fff}
    footer p{color:#c9cec0;font-size:14px}
    footer h3{font-size:14px;margin:4px 0 16px}
    .footer-links{display:flex;flex-direction:column;gap:9px;color:#c9cec0;font-size:14px}
    .footer-links a:hover{color:#f0c27b}
    .copyright{border-top:1px solid rgba(255,255,255,.16);padding-top:18px;display:flex;justify-content:space-between;color:#aeb6a8;font-size:12px}
    .empty-state{display:none;text-align:center;padding:45px 20px;border:1px dashed var(--line);border-radius:var(--radius);color:var(--muted)}
    :focus-visible{outline:3px solid rgba(196,140,66,.55);outline-offset:3px}
    @media(max-width:1024px){
      .brand{min-width:190px}.nav-wrap{gap:14px}.nav-links{gap:0}
      .intro-grid,.filter-shell,.faq-grid{gap:38px}
      .path-grid{grid-template-columns:repeat(2,1fr)}
      .path-item:nth-child(2){border-right:0}.path-item:nth-child(-n+2){border-bottom:1px solid var(--line)}
    }
    @media(max-width:768px){
      .container{width:min(100% - 28px,620px)}
      .nav-wrap{height:68px}.brand{min-width:0;font-size:16px}.brand-mark{width:31px;height:31px}
      .nav-search{display:none}.nav-links{position:absolute;left:14px;right:14px;top:76px;background:var(--white);border:1px solid var(--line);border-radius:14px;padding:8px;display:none;flex-direction:column;align-items:stretch;box-shadow:var(--shadow)}
      .nav-links.show{display:flex}.nav-link{padding:12px}.menu-btn{display:block;margin-left:auto}
      .page-intro{padding:52px 0 36px}.intro-grid{grid-template-columns:1fr;gap:28px}h1{font-size:clamp(42px,12vw,64px)}
      section{padding:58px 0}.section-head{display:block}.section-intro{margin-top:14px}
      .filter-shell{display:block}.filter-rail{border:0;border-bottom:1px solid var(--line);padding:0 0 18px;margin-bottom:24px}
      .filter-list{flex-direction:row;overflow:auto;white-space:nowrap}.filter-tip{display:none}
      .result-grid,.related-grid{grid-template-columns:1fr}.result-card.featured{min-height:0}
      .path-grid{grid-template-columns:1fr}.path-item:not(:last-child){border-right:0;border-bottom:1px solid var(--line)}
      .cta-box{display:block;padding:30px}.cta-box .btn{margin-top:24px;width:100%}
      .footer-grid{grid-template-columns:1fr;gap:25px;padding-bottom:30px}.copyright{display:block}.copyright span{display:block;margin-top:6px}
    }
    @media(prefers-reduced-motion:reduce){
      *,*:before,*:after{scroll-behavior:auto!important;transition-duration:.01ms!important}
    }

/* roulang page: category1 */
:root{
      --ink:#202521;
      --muted:#6b716a;
      --paper:#f7f6f0;
      --soft:#eeeee5;
      --line:#d9dbd0;
      --moss:#566b4d;
      --moss-dark:#354834;
      --ochre:#c48c42;
      --night:#202720;
      --white:#fffefa;
      --radius:18px;
      --shadow:0 18px 45px rgba(32,37,33,.08);
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{margin:0;background:var(--paper);color:var(--ink);font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;line-height:1.7}
    a{text-decoration:none;color:inherit}
    button,input{font:inherit}
    button{cursor:pointer}
    img{max-width:100%;display:block}
    .container{width:min(1180px,calc(100% - 40px));margin:auto}
    .site-header{position:sticky;top:0;z-index:30;background:rgba(247,246,240,.96);border-bottom:1px solid var(--line);backdrop-filter:blur(10px)}
    .nav-wrap{height:78px;display:flex;align-items:center;gap:24px}
    .brand{display:flex;align-items:center;gap:11px;min-width:235px;font-weight:800;letter-spacing:-.04em;font-size:18px}
    .brand-mark{width:34px;height:34px;border-radius:10px;background:var(--moss-dark);position:relative;display:grid;place-items:center;color:#e7e5c8;font-size:12px}
    .brand-mark:after{content:"";width:9px;height:9px;border:2px solid var(--ochre);border-radius:50%}
    .nav-search{height:46px;flex:1;max-width:470px;display:flex;align-items:center;border:1px solid var(--line);background:var(--white);border-radius:12px;padding:0 8px 0 15px;transition:.25s}
    .nav-search:focus-within{border-color:var(--moss);box-shadow:0 0 0 4px rgba(86,107,77,.12)}
    .nav-search svg{color:var(--muted);flex:none}
    .nav-search input{border:0;outline:0;background:transparent;width:100%;padding:0 10px;color:var(--ink)}
    .search-submit{border:0;border-radius:9px;background:var(--moss-dark);color:white;height:34px;padding:0 14px;font-size:13px}
    .search-submit:hover{background:var(--moss)}
    .nav-links{display:flex;align-items:center;gap:6px;margin-left:auto}
    .nav-link{padding:9px 12px;border-radius:9px;color:var(--muted);font-size:14px;transition:.2s}
    .nav-link:hover,.nav-link.active{background:#e5e8dc;color:var(--moss-dark)}
    .menu-btn{display:none;border:1px solid var(--line);background:var(--white);border-radius:10px;width:44px;height:44px}
    .page-hero{padding:76px 0 54px;border-bottom:1px solid var(--line)}
    .hero-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:80px;align-items:end}
    .eyebrow,.section-kicker{font-family:ui-monospace,SFMono-Regular,Menlo,monospace;color:var(--ochre);font-size:12px;letter-spacing:.12em;text-transform:uppercase}
    h1{font-size:clamp(42px,6vw,76px);line-height:1.08;letter-spacing:-.06em;margin:18px 0 22px;max-width:700px}
    .hero-copy{font-size:18px;color:var(--muted);max-width:650px}
    .hero-meta{border-left:2px solid var(--ochre);padding-left:24px}
    .hero-meta strong{display:block;font-size:40px;line-height:1.1;color:var(--moss-dark)}
    .hero-meta span{display:block;color:var(--muted);font-size:14px;margin-top:7px}
    .crumbs{display:flex;gap:9px;align-items:center;color:var(--muted);font-size:13px}
    .crumbs a:hover{color:var(--moss-dark)}
    section{padding:78px 0}
    .section-head{display:flex;justify-content:space-between;gap:30px;align-items:end;margin-bottom:30px}
    .section-head h2{font-size:36px;line-height:1.2;letter-spacing:-.05em;margin:10px 0 0}
    .section-intro{max-width:470px;color:var(--muted);font-size:15px}
    .index-layout{display:grid;grid-template-columns:260px 1fr;gap:48px}
    .filter-rail{border-right:1px solid var(--line);padding-right:30px}
    .filter-rail h3{font-size:15px;margin:0 0 16px}
    .filter-list{display:flex;flex-direction:column;gap:5px}
    .filter-list button{border:0;background:none;text-align:left;border-radius:9px;padding:11px 13px;color:var(--muted);transition:.2s}
    .filter-list button:hover,.filter-list button.active{background:#e5e8dc;color:var(--moss-dark);font-weight:700}
    .filter-note{margin-top:40px;padding-top:20px;border-top:1px solid var(--line);font-size:12px;color:var(--muted)}
    .content-area{min-width:0}
    .toolbar{display:flex;justify-content:space-between;gap:15px;align-items:center;margin-bottom:22px}
    .search-box{height:48px;display:flex;align-items:center;gap:10px;border:1px solid var(--line);background:var(--white);border-radius:11px;padding:0 14px;flex:1;max-width:430px}
    .search-box:focus-within{border-color:var(--moss);box-shadow:0 0 0 4px rgba(86,107,77,.1)}
    .search-box input{border:0;outline:0;background:transparent;width:100%;color:var(--ink)}
    .sort-select{height:46px;border:1px solid var(--line);background:var(--white);border-radius:10px;padding:0 13px;color:var(--muted);outline:0}
    .sort-select:focus{border-color:var(--moss)}
    .result-card{border:1px solid var(--line);background:var(--white);border-radius:var(--radius);padding:24px;transition:.25s;display:grid;grid-template-columns:58px 1fr auto;gap:20px;align-items:start;margin-bottom:12px}
    .result-card:hover{transform:translateX(4px);border-color:#aeb9a2;box-shadow:var(--shadow)}
    .result-number{font-family:ui-monospace,monospace;font-size:14px;color:var(--ochre);padding-top:3px}
    .result-card h3{font-size:21px;line-height:1.35;margin:0 0 7px}
    .result-card p{font-size:13px;color:var(--muted);margin:0 0 14px;max-width:590px}
    .result-tags{display:flex;flex-wrap:wrap;gap:7px}
    .tag{display:inline-flex;align-items:center;border-radius:99px;padding:4px 9px;background:#e9eddf;color:var(--moss-dark);font-size:12px}
    .tag.gold{background:#f3e8d4;color:#875c24}
    .result-arrow{font-size:25px;color:var(--moss);transition:.2s}
    .result-card:hover .result-arrow{transform:translateX(4px);color:var(--ochre)}
    .empty-state{margin-top:18px;padding:18px;background:var(--soft);border-radius:12px;color:var(--muted);font-size:13px}
    .path-band{background:var(--night);color:#f6f4e8}
    .path-grid{display:grid;grid-template-columns:.8fr 1.2fr;gap:80px;align-items:center}
    .path-band .section-intro{color:#c9cec0}
    .path-list{display:grid;grid-template-columns:repeat(2,1fr);gap:0 30px}
    .path-item{padding:20px 0;border-bottom:1px solid rgba(255,255,255,.18)}
    .path-item b{color:var(--ochre);font-family:ui-monospace,monospace;margin-right:12px}
    .path-item span{color:#c9cec0;font-size:13px;display:block;margin-top:5px}
    .related-grid{display:grid;grid-template-columns:1.35fr .65fr;gap:15px}
    .related-main,.related-side{border:1px solid var(--line);border-radius:var(--radius);background:var(--white);padding:30px}
    .related-main{background:#e6e9dd;min-height:250px}
    .related-main h3{font-size:31px;line-height:1.2;letter-spacing:-.05em;margin:55px 0 12px}
    .related-main p,.related-side p{color:var(--muted);font-size:14px}
    .related-side{display:flex;flex-direction:column;justify-content:space-between}
    .btn{min-height:46px;padding:0 20px;border-radius:10px;display:inline-flex;align-items:center;justify-content:center;gap:8px;border:1px solid transparent;font-weight:700;font-size:14px;transition:.25s}
    .btn-primary{background:var(--moss-dark);color:#fff}
    .btn-primary:hover{background:var(--moss);transform:translateY(-2px)}
    .btn-secondary{border-color:var(--line);background:var(--white);color:var(--moss-dark)}
    .btn-secondary:hover{border-color:var(--moss);transform:translateY(-2px)}
    .faq-grid{display:grid;grid-template-columns:.7fr 1.3fr;gap:70px}
    .faq-item{border-top:1px solid var(--line)}
    .faq-q{width:100%;min-height:64px;border:0;background:none;display:flex;justify-content:space-between;align-items:center;text-align:left;font-weight:700;color:var(--ink)}
    .faq-q span{font-size:22px;color:var(--ochre);transition:.25s}
    .faq-a{max-height:0;overflow:hidden;color:var(--muted);font-size:14px;transition:max-height .35s ease}
    .faq-item.open .faq-a{max-height:130px;padding:0 35px 20px 0}
    .faq-item.open .faq-q span{transform:rotate(45deg)}
    .cta{padding:70px 0}
    .cta-box{background:#dfe5d4;border-radius:22px;padding:45px;display:flex;justify-content:space-between;align-items:center;gap:30px}
    .cta-box h2{font-size:34px;line-height:1.2;letter-spacing:-.05em;margin:8px 0}
    .cta-box p{color:var(--muted);margin:0}
    footer{background:var(--night);color:#f6f4e8;padding:54px 0 22px}
    .footer-grid{display:grid;grid-template-columns:1.5fr .7fr .8fr;gap:60px}
    footer .brand{color:#fff}
    footer p{color:#c9cec0;font-size:13px}
    footer h3{font-size:14px;margin:5px 0 15px}
    .footer-links{display:flex;flex-direction:column;gap:8px;color:#c9cec0;font-size:13px}
    .footer-links a:hover{color:#fff}
    .copyright{display:flex;justify-content:space-between;gap:20px;border-top:1px solid rgba(255,255,255,.16);margin-top:45px;padding-top:18px;color:#9ca69a;font-size:12px}
    :focus-visible{outline:3px solid rgba(196,140,66,.55);outline-offset:3px}
    @media(max-width:1024px){
      .brand{min-width:205px}.nav-wrap{gap:14px}.nav-links{gap:0}.nav-link{padding:8px}
      .hero-grid,.path-grid{gap:42px}.index-layout{grid-template-columns:220px 1fr}
    }
    @media(max-width:768px){
      .container{width:min(100% - 30px,620px)}
      .nav-wrap{height:68px}.brand{min-width:0;font-size:16px}.brand-mark{width:30px;height:30px}
      .nav-search{display:none}.nav-links{display:none}.menu-btn{display:block;margin-left:auto}
      .nav-wrap.menu-open{height:auto;flex-wrap:wrap;padding:12px 0}.nav-wrap.menu-open .nav-search{display:flex;order:3;flex-basis:100%;max-width:none}.nav-wrap.menu-open .nav-links{display:flex;order:4;flex-basis:100%;padding:8px 0 5px;overflow:auto}
      .page-hero{padding:55px 0 40px}.hero-grid,.index-layout,.path-grid,.faq-grid,.related-grid{grid-template-columns:1fr;gap:35px}
      h1{font-size:46px}.hero-meta{border-left:0;border-top:2px solid var(--ochre);padding:17px 0 0}
      section{padding:58px 0}.section-head{display:block}.section-intro{margin-top:15px}
      .filter-rail{border-right:0;border-bottom:1px solid var(--line);padding:0 0 20px}
      .filter-list{flex-direction:row;overflow:auto;padding-bottom:3px}.filter-list button{white-space:nowrap}
      .toolbar{align-items:stretch;flex-direction:column}.search-box{max-width:none}
      .result-card{grid-template-columns:38px 1fr 20px;gap:12px;padding:19px 16px}
      .result-card h3{font-size:18px}.path-list{grid-template-columns:1fr}
      .cta-box{padding:30px;display:block}.cta-box .btn{margin-top:22px;width:100%}
      .footer-grid{grid-template-columns:1fr 1fr;gap:30px}.footer-grid>div:first-child{grid-column:1/-1}
      .copyright{display:block}.copyright span{display:block;margin-top:7px}
    }
    @media(max-width:520px){
      h1{font-size:39px}.hero-copy{font-size:16px}.related-main h3,.cta-box h2{font-size:28px}
      .related-main,.related-side{padding:24px}.result-arrow{font-size:20px}
      .footer-grid{grid-template-columns:1fr}.footer-grid>div:first-child{grid-column:auto}
    }
    @media(prefers-reduced-motion:reduce){
      *,*:before,*:after{scroll-behavior:auto!important;transition:none!important}
    }