/* roulang page: index */
:root{
      --ink:#17212b;--muted:#6b7785;--paper:#f6f7f4;--white:#fff;
      --green:#1e6b5a;--green-dark:#12473d;--coral:#e9785e;--gold:#d3a24c;
      --line:#dde4df;--radius:18px;--shadow:0 18px 50px rgba(23,33,43,.10);
    }
    *{box-sizing:border-box} html{scroll-behavior:smooth}
    body{margin:0;background:var(--paper);color:var(--ink);font-family:"Noto Sans SC","Microsoft YaHei",Arial,sans-serif;line-height:1.75}
    a{color:inherit;text-decoration:none} img{display:block;width:100%;object-fit:cover}
    .container{max-width:1180px;margin:auto;padding:0 22px}
    .site-header{position:sticky;top:0;z-index:20;background:rgba(246,247,244,.94);backdrop-filter:blur(14px);border-bottom:1px solid rgba(221,228,223,.8)}
    .nav-wrap{min-height:78px;display:flex;align-items:center;gap:34px}
    .brand{display:flex;align-items:center;gap:12px;font-weight:800;font-size:18px;white-space:nowrap}
    .brand-mark{width:38px;height:38px;border-radius:12px;background:var(--green);color:#fff;display:grid;place-items:center;box-shadow:0 8px 18px rgba(30,107,90,.25)}
    .main-nav{display:flex;align-items:center;gap:25px;margin-left:auto}
    .main-nav a{font-size:14px;color:var(--muted);transition:.25s}
    .main-nav a:hover,.main-nav a.active{color:var(--green);font-weight:700}
    .nav-button{border:1px solid var(--green);color:var(--green)!important;padding:8px 15px;border-radius:999px}
    .nav-button:hover{background:var(--green);color:#fff!important}
    .hero{padding:70px 0 58px;background:linear-gradient(120deg,#e8f0ea 0%,#f6f7f4 56%,#f7e5de 100%);border-bottom:1px solid var(--line)}
    .hero-grid{display:grid;grid-template-columns:1.08fr .92fr;gap:58px;align-items:center}
    .eyebrow,.section-kicker{color:var(--coral);font-weight:800;letter-spacing:.12em;font-size:12px;text-transform:uppercase}
    h1{font-size:clamp(38px,5vw,66px);line-height:1.15;letter-spacing:0;margin:15px 0 20px;font-weight:900}
    h1 span{color:var(--green)}
    .hero-copy{font-size:17px;color:var(--muted);max-width:650px;margin-bottom:28px}
    .btn-main{display:inline-flex;align-items:center;gap:9px;border:0;border-radius:10px;padding:13px 21px;background:var(--green);color:#fff;font-weight:700;transition:.25s}
    .btn-main:hover{background:var(--green-dark);color:#fff;transform:translateY(-2px)}
    .btn-soft{display:inline-flex;align-items:center;gap:9px;border:1px solid var(--line);border-radius:10px;padding:12px 20px;background:#fff;color:var(--green);font-weight:700;margin-left:10px;transition:.25s}
    .btn-soft:hover{border-color:var(--green);transform:translateY(-2px)}
    .hero-panel{position:relative;min-height:330px;border-radius:24px;overflow:hidden;box-shadow:var(--shadow);background:#193f38}
    .hero-panel img{height:330px;opacity:.72}
    .hero-panel:after{content:"";position:absolute;inset:0;background:linear-gradient(0deg,rgba(18,71,61,.9),transparent 65%)}
    .hero-note{position:absolute;z-index:1;left:25px;right:25px;bottom:22px;color:#fff}
    .hero-note strong{display:block;font-size:25px;line-height:1.3}
    .hero-note small{color:#d4e4dd}
    section{padding:76px 0}.section-head{display:flex;justify-content:space-between;align-items:end;gap:24px;margin-bottom:28px}
    h2{font-size:30px;line-height:1.25;margin:7px 0 0;font-weight:850}
    .section-intro{color:var(--muted);max-width:590px;margin:0}
    .stats{background:var(--green-dark);color:#fff;padding:30px 0}
    .stat-row{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
    .stat{border-left:1px solid rgba(255,255,255,.23);padding-left:22px}.stat strong{font-size:31px;display:block;color:#f5c977}.stat span{font-size:13px;color:#cbded7}
    .content-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
    .content-card{background:var(--white);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;transition:.25s;height:100%}
    .content-card:hover{transform:translateY(-5px);box-shadow:var(--shadow);border-color:#b8d0c6}
    .card-img{height:190px;position:relative}.card-img img{height:100%}
    .tag{position:absolute;top:13px;left:13px;border-radius:999px;background:var(--coral);color:#fff;font-size:11px;padding:3px 9px;font-weight:700}
    .card-body{padding:17px 18px}.card-body h3{font-size:18px;margin:0 0 7px;line-height:1.4}.card-body p{font-size:13px;color:var(--muted);margin:0}.rating{margin-top:13px;color:var(--gold);font-size:13px}.rating span{color:var(--muted);margin-left:7px}
    .feature-section{background:#fff}.feature-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
    .feature{padding:27px;border:1px solid var(--line);border-radius:var(--radius);background:#fbfcfb}
    .feature-icon{width:45px;height:45px;border-radius:13px;background:#e5f0e9;color:var(--green);display:grid;place-items:center;font-size:19px;margin-bottom:18px}
    .feature h3{font-size:19px;margin:0 0 8px}.feature p{color:var(--muted);font-size:14px;margin:0}
    .scene-grid{display:grid;grid-template-columns:1fr 1fr;gap:20px}.scene{min-height:220px;border-radius:var(--radius);padding:27px;display:flex;flex-direction:column;justify-content:end;color:#fff;background-size:cover;background-position:center;position:relative;overflow:hidden}.scene:after{content:"";position:absolute;inset:0;background:linear-gradient(0deg,rgba(14,37,34,.9),transparent)}.scene>*{position:relative;z-index:1}.scene h3{margin:0 0 5px;font-size:22px}.scene p{margin:0;color:#d8e6df;font-size:14px}
    .matrix{display:grid;grid-template-columns:repeat(5,1fr);gap:12px}.matrix a{background:#fff;border:1px solid var(--line);padding:18px 14px;border-radius:14px;font-weight:700;color:var(--green);transition:.2s}.matrix a:hover{background:var(--green);color:#fff}
    .rank-wrap{display:grid;grid-template-columns:1.1fr .9fr;gap:30px}.rank-list{background:#fff;border-radius:var(--radius);border:1px solid var(--line);overflow:hidden}.rank-item{display:grid;grid-template-columns:35px 1fr auto auto;gap:15px;align-items:center;padding:15px 20px;border-bottom:1px solid var(--line)}.rank-item:last-child{border:0}.rank-num{font-weight:900;color:var(--coral);font-size:19px}.rank-name{font-weight:700}.rank-type{font-size:12px;color:var(--muted)}.heat{font-size:12px;color:var(--muted)}.score{color:var(--gold);font-weight:800}
    .quote-box{padding:34px;background:#f7e5de;border-radius:var(--radius);height:100%;display:flex;flex-direction:column;justify-content:center}.quote-box blockquote{font-size:24px;line-height:1.5;font-weight:700;margin:18px 0}.quote-box cite{color:var(--muted);font-size:13px;font-style:normal}
    .news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}.news{display:grid;grid-template-columns:110px 1fr;gap:15px;align-items:center}.news img{height:85px;border-radius:12px}.news h3{font-size:16px;line-height:1.45;margin:0 0 5px}.news time{font-size:12px;color:var(--muted)}
    .faq-section{background:#edf3ee}.accordion-item{background:#fff;border:1px solid var(--line)!important;margin-bottom:10px;border-radius:12px!important;overflow:hidden}.accordion-button{font-weight:700;color:var(--ink);background:#fff}.accordion-button:not(.collapsed){color:var(--green);background:#f5faf6;box-shadow:none}.accordion-button:focus{box-shadow:0 0 0 3px rgba(30,107,90,.14)}
    .cta{padding:55px 0;background:var(--coral);color:#fff}.cta-inner{display:flex;justify-content:space-between;align-items:center;gap:25px}.cta h2{margin:0}.cta p{margin:8px 0 0;color:#ffe9e2}.cta .btn-main{background:#fff;color:var(--green)}
    footer{background:#152b2a;color:#d5e2dd;padding:55px 0 22px}.footer-grid{display:grid;grid-template-columns:1.5fr repeat(3,1fr);gap:40px}.footer-brand{color:#fff;font-size:20px;font-weight:800}.footer-title{color:#fff;font-weight:700;margin-bottom:14px}.footer-links a{display:block;color:#aac1ba;font-size:13px;margin:7px 0;transition:.2s}.footer-links a:hover{color:#fff}.footer-desc{font-size:13px;color:#aac1ba;max-width:280px;margin-top:14px}.copyright{border-top:1px solid rgba(255,255,255,.14);margin-top:38px;padding-top:18px;color:#8ca69d;font-size:12px}
    @media(max-width:1024px){.hero-grid{gap:30px}.content-grid{grid-template-columns:repeat(3,1fr)}.matrix{grid-template-columns:repeat(3,1fr)}}
    @media(max-width:768px){.nav-wrap{min-height:68px}.main-nav{gap:13px}.main-nav a:not(.nav-button){display:none}.hero{padding:48px 0}.hero-grid,.rank-wrap{grid-template-columns:1fr}.hero-panel{min-height:260px}.hero-panel img{height:260px}.stat-row{grid-template-columns:repeat(2,1fr)}.content-grid{grid-template-columns:repeat(2,1fr)}.feature-grid,.news-grid{grid-template-columns:1fr 1fr}.footer-grid{grid-template-columns:1fr 1fr}.cta-inner{align-items:flex-start;flex-direction:column}}
    @media(max-width:520px){.container{padding:0 16px}.brand{font-size:15px}.brand-mark{width:34px;height:34px}.hero-copy{font-size:15px}.btn-soft{margin:10px 0 0}.section-head{display:block}.section-intro{margin-top:12px}.content-grid,.feature-grid,.scene-grid,.news-grid{grid-template-columns:1fr}.matrix{grid-template-columns:repeat(2,1fr)}.stat{padding-left:13px}.stat strong{font-size:25px}.rank-item{gap:9px;padding:13px 12px;grid-template-columns:27px 1fr auto}.rank-item .heat{display:none}.footer-grid{grid-template-columns:1fr 1fr;gap:25px}.footer-grid>div:first-child{grid-column:1/-1}}

/* roulang page: category1 */
:root{
      --ink:#17212b;--muted:#6b7785;--paper:#f6f7f4;--white:#fff;
      --green:#1e6b5a;--green-dark:#12473d;--coral:#e9785e;--gold:#d3a24c;
      --line:#dde4df;--radius:18px;--shadow:0 18px 50px rgba(23,33,43,.10);
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{margin:0;background:var(--paper);color:var(--ink);font-family:"Noto Sans SC","Microsoft YaHei",Arial,sans-serif;line-height:1.75}
    a{color:inherit;text-decoration:none}
    img{display:block;width:100%;object-fit:cover}
    button:focus,a:focus{outline:3px solid rgba(233,120,94,.35);outline-offset:3px}
    .container{max-width:1180px;margin:auto;padding:0 22px}
    .site-header{position:sticky;top:0;z-index:20;background:rgba(246,247,244,.94);backdrop-filter:blur(14px);border-bottom:1px solid rgba(221,228,223,.8)}
    .nav-wrap{min-height:78px;display:flex;align-items:center;gap:34px}
    .brand{display:flex;align-items:center;gap:12px;font-weight:800;font-size:18px;white-space:nowrap}
    .brand-mark{width:38px;height:38px;border-radius:12px;background:var(--green);color:#fff;display:grid;place-items:center;box-shadow:0 8px 18px rgba(30,107,90,.25)}
    .main-nav{display:flex;align-items:center;gap:25px;margin-left:auto}
    .main-nav a{font-size:14px;color:var(--muted);transition:.25s}
    .main-nav a:hover,.main-nav a.active{color:var(--green);font-weight:700}
    .nav-button{border:1px solid var(--green);color:var(--green)!important;padding:8px 15px;border-radius:999px}
    .nav-button:hover{background:var(--green);color:#fff!important}
    .page-hero{padding:78px 0 70px;background:linear-gradient(120deg,#e8f0ea 0%,#f6f7f4 58%,#f7e5de 100%);border-bottom:1px solid var(--line)}
    .hero-layout{display:grid;grid-template-columns:1fr .86fr;gap:64px;align-items:center}
    .eyebrow,.section-kicker{color:var(--coral);font-weight:800;letter-spacing:.12em;font-size:12px;text-transform:uppercase}
    h1{font-size:clamp(36px,5vw,64px);line-height:1.15;letter-spacing:0;margin:15px 0 20px;font-weight:900}
    h1 em{font-style:normal;color:var(--coral)}
    .hero-text{font-size:17px;color:var(--muted);max-width:650px;margin-bottom:28px}
    .hero-actions{display:flex;flex-wrap:wrap;gap:12px}
    .btn-main,.btn-soft{display:inline-flex;align-items:center;gap:9px;border-radius:10px;padding:13px 21px;font-weight:700;transition:.25s}
    .btn-main{border:0;background:var(--green);color:#fff}
    .btn-main:hover{background:var(--green-dark);color:#fff;transform:translateY(-2px)}
    .btn-soft{border:1px solid var(--line);background:#fff;color:var(--green)}
    .btn-soft:hover{border-color:var(--green);transform:translateY(-2px)}
    .hero-visual{position:relative;min-height:360px;border-radius:24px;overflow:hidden;box-shadow:var(--shadow);background:#193f38}
    .hero-visual img{height:360px;opacity:.72}
    .hero-visual:after{content:"";position:absolute;inset:0;background:linear-gradient(0deg,rgba(18,71,61,.92),transparent 66%)}
    .hero-caption{position:absolute;z-index:1;left:28px;right:28px;bottom:24px;color:#fff}
    .hero-caption strong{display:block;font-size:27px;line-height:1.3}
    .hero-caption small{color:#d4e4dd}
    section{padding:76px 0}
    .section-head{display:flex;justify-content:space-between;align-items:end;gap:24px;margin-bottom:30px}
    .section-head h2{font-size:32px;line-height:1.25;margin:8px 0 0}
    .section-intro{color:var(--muted);max-width:590px;margin:0}
    .topic-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
    .topic-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:28px;min-height:220px;transition:.25s}
    .topic-card:hover{transform:translateY(-5px);box-shadow:var(--shadow);border-color:#b8d0c6}
    .topic-icon{width:48px;height:48px;border-radius:14px;background:#e5f0e9;color:var(--green);display:grid;place-items:center;font-size:20px;margin-bottom:22px}
    .topic-card h3{font-size:20px;margin:0 0 10px}
    .topic-card p{color:var(--muted);font-size:14px;margin:0}
    .feature-section{background:#fff}
    .feature-layout{display:grid;grid-template-columns:.8fr 1.2fr;gap:50px;align-items:start}
    .feature-list{display:grid;gap:15px}
    .feature-row{display:grid;grid-template-columns:45px 1fr;gap:16px;padding:20px 0;border-bottom:1px solid var(--line)}
    .feature-row:last-child{border-bottom:0}
    .feature-row i{color:var(--green);font-size:19px;padding-top:4px}
    .feature-row h3{font-size:18px;margin:0 0 5px}
    .feature-row p{color:var(--muted);font-size:14px;margin:0}
    .collection-band{background:#edf3ee}
    .collection-grid{display:grid;grid-template-columns:1.25fr .75fr;gap:24px}
    .collection-main{position:relative;min-height:390px;border-radius:var(--radius);overflow:hidden;color:#fff}
    .collection-main img{height:390px}
    .collection-main:after{content:"";position:absolute;inset:0;background:linear-gradient(0deg,rgba(18,71,61,.94),rgba(18,71,61,.05) 75%)}
    .collection-copy{position:absolute;z-index:1;left:30px;right:30px;bottom:28px}
    .collection-copy h3{font-size:29px;line-height:1.3;margin:10px 0}
    .collection-copy p{color:#d6e6df;margin:0;max-width:590px}
    .collection-side{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:25px}
    .collection-side h3{font-size:20px;margin:0 0 20px}
    .mini-item{display:flex;justify-content:space-between;gap:15px;padding:14px 0;border-bottom:1px solid var(--line)}
    .mini-item:last-child{border-bottom:0}
    .mini-item strong{font-size:15px}
    .mini-item span{color:var(--coral);font-size:13px;white-space:nowrap}
    .article-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
    .article-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;transition:.25s}
    .article-card:hover{transform:translateY(-5px);box-shadow:var(--shadow)}
    .article-card img{height:170px}
    .article-body{padding:20px}
    .article-body small{color:var(--coral);font-weight:700}
    .article-body h3{font-size:19px;line-height:1.45;margin:8px 0}
    .article-body p{color:var(--muted);font-size:14px;margin:0}
    .evidence{background:#fff}
    .quote-layout{display:grid;grid-template-columns:.9fr 1.1fr;gap:40px;align-items:center}
    .quote-box{padding:32px;border-left:4px solid var(--coral);background:#fbf5f1}
    .quote-box p{font-size:24px;line-height:1.55;margin:0 0 15px;font-weight:700}
    .quote-box span{color:var(--muted);font-size:13px}
    .metric-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:16px}
    .metric{padding:25px;border:1px solid var(--line);border-radius:14px;background:#fbfcfb}
    .metric strong{display:block;color:var(--green);font-size:32px;line-height:1.1}
    .metric span{color:var(--muted);font-size:13px}
    .faq-section{background:#edf3ee}
    .accordion-item{background:#fff;border:1px solid var(--line)!important;margin-bottom:10px;border-radius:12px!important;overflow:hidden}
    .accordion-button{font-weight:700;color:var(--ink);background:#fff}
    .accordion-button:not(.collapsed){color:var(--green);background:#f5faf6;box-shadow:none}
    .accordion-button:focus{box-shadow:0 0 0 3px rgba(30,107,90,.14)}
    .cta{padding:55px 0;background:var(--coral);color:#fff}
    .cta-inner{display:flex;justify-content:space-between;align-items:center;gap:25px}
    .cta h2{margin:0;font-size:30px}
    .cta p{margin:8px 0 0;color:#ffe9e2}
    .cta .btn-main{background:#fff;color:var(--green)}
    footer{background:#152b2a;color:#d5e2dd;padding:55px 0 22px}
    .footer-grid{display:grid;grid-template-columns:1.5fr repeat(3,1fr);gap:40px}
    .footer-brand{color:#fff;font-size:20px;font-weight:800}
    .footer-title{color:#fff;font-weight:700;margin-bottom:14px}
    .footer-links a{display:block;color:#aac1ba;font-size:13px;margin:7px 0;transition:.2s}
    .footer-links a:hover{color:#fff}
    .footer-desc{font-size:13px;color:#aac1ba;max-width:280px;margin-top:14px}
    .copyright{border-top:1px solid rgba(255,255,255,.14);margin-top:38px;padding-top:18px;color:#8ca69d;font-size:12px}
    @media (max-width:1024px){
      .hero-layout{gap:32px}
      .topic-grid{grid-template-columns:repeat(2,1fr)}
      .collection-grid,.feature-layout,.quote-layout{grid-template-columns:1fr}
    }
    @media (max-width:768px){
      .container{padding:0 16px}
      .nav-wrap{min-height:68px}
      .brand{font-size:15px}
      .brand-mark{width:34px;height:34px}
      .main-nav{gap:11px}
      .main-nav a:not(.nav-button){display:none}
      .page-hero{padding:50px 0}
      .hero-layout{grid-template-columns:1fr}
      .hero-visual,.hero-visual img{min-height:270px;height:270px}
      .hero-text{font-size:15px}
      .section-head{display:block}
      .section-intro{margin-top:12px}
      .article-grid{grid-template-columns:1fr 1fr}
      .footer-grid{grid-template-columns:1fr 1fr}
      .cta-inner{align-items:flex-start;flex-direction:column}
    }
    @media (max-width:520px){
      h1{font-size:39px}
      .topic-grid,.article-grid,.metric-grid{grid-template-columns:1fr}
      .topic-card{min-height:auto}
      section{padding:58px 0}
      .collection-main,.collection-main img{min-height:320px;height:320px}
      .collection-copy h3{font-size:24px}
      .quote-box p{font-size:20px}
      .footer-grid{grid-template-columns:1fr}
      .main-nav .nav-button{padding:7px 11px;font-size:12px}
    }