/* roulang page: index */
:root{
      --ink:#18231f;--muted:#66736c;--paper:#f5f7f2;--white:#fff;--line:#dfe7df;
      --green:#1d694d;--green-dark:#104232;--lime:#d5e95d;--coral:#e7775d;
      --shadow:0 18px 48px rgba(22,54,40,.10);--radius:18px;--small-radius:10px;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{margin:0;background:var(--paper);color:var(--ink);font-family:"Noto Sans SC",system-ui,sans-serif;font-size:15px;line-height:1.75}
    a{color:inherit;text-decoration:none;transition:.25s ease}
    img{display:block;width:100%;object-fit:cover}
    button,input{font:inherit}
    .container{width:min(1180px,calc(100% - 40px));margin:auto}
    .site-header{position:sticky;top:0;z-index:20;background:rgba(245,247,242,.92);backdrop-filter:blur(16px);border-bottom:1px solid rgba(223,231,223,.8)}
    .nav-shell{height:76px;display:flex;align-items:center;justify-content:space-between;gap:28px}
    .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:11px;background:var(--green);display:grid;place-items:center;color:var(--lime);font-size:21px}
    .nav-links{display:flex;gap:6px;align-items:center}
    .nav-links a{padding:9px 13px;border-radius:9px;color:#5a6861;font-size:14px}
    .nav-links a:hover,.nav-links a.active{color:var(--green-dark);background:#e5eee3}
    .nav-action{background:var(--green)!important;color:#fff!important;padding:10px 17px!important}
    .nav-action:hover{background:var(--green-dark)!important}
    .menu-toggle{display:none;border:0;background:none;font-size:25px;color:var(--green)}
    .hero{min-height:650px;position:relative;display:flex;align-items:flex-end;overflow:hidden;background:#173d2e}
    .hero-media{position:absolute;inset:0;background-image:linear-gradient(90deg,rgba(10,38,28,.88) 0%,rgba(10,38,28,.56) 48%,rgba(10,38,28,.18) 100%),url("https://images.unsplash.com/photo-1500534623283-312aade485b7?auto=format&fit=crop&w=2000&q=90");background-size:cover;background-position:center}
    .hero-content{position:relative;color:#fff;padding:112px 0 88px;max-width:720px}
    .eyebrow{display:inline-flex;align-items:center;gap:8px;text-transform:uppercase;letter-spacing:.12em;font-size:12px;color:var(--lime);font-weight:700;margin-bottom:18px}
    .eyebrow:before{content:"";width:28px;height:2px;background:var(--lime)}
    h1,h2,h3,p{margin-top:0}
    h1{font-size:clamp(42px,6vw,76px);line-height:1.12;letter-spacing:0;font-weight:800;margin-bottom:24px}
    h1 em{font-style:normal;color:var(--lime)}
    .hero-lead{font-size:18px;color:rgba(255,255,255,.84);max-width:650px;margin-bottom:32px}
    .button-row{display:flex;gap:12px;flex-wrap:wrap}
    .button{border:0;border-radius:9px;padding:12px 21px;font-weight:700;margin:0;line-height:1.4;transition:.25s ease}
    .button.primary{background:var(--lime);color:var(--green-dark)}
    .button.primary:hover{background:#e4f57f;transform:translateY(-2px)}
    .button.ghost{border:1px solid rgba(255,255,255,.42);color:#fff;background:rgba(255,255,255,.08)}
    .button.ghost:hover{background:#fff;color:var(--green-dark)}
    .hero-note{margin-top:48px;display:flex;gap:30px;color:rgba(255,255,255,.7);font-size:13px}
    .hero-note strong{display:block;color:#fff;font-size:21px;line-height:1.2}
    section{padding:92px 0}
    .section-head{display:flex;align-items:end;justify-content:space-between;gap:30px;margin-bottom:30px}
    .section-kicker{color:var(--coral);font-size:12px;font-weight:800;letter-spacing:.12em;margin-bottom:8px}
    h2{font-size:clamp(28px,4vw,42px);line-height:1.25;margin-bottom:10px;font-weight:800}
    .section-intro{max-width:610px;color:var(--muted);margin:0}
    .text-link{color:var(--green);font-weight:700;white-space:nowrap}
    .text-link:hover{color:var(--coral)}
    .signal{background:var(--green-dark);color:#fff;padding:18px 0}
    .signal-inner{display:flex;justify-content:space-between;gap:20px;align-items:center}
    .signal p{margin:0;color:rgba(255,255,255,.75);font-size:14px}
    .signal strong{color:var(--lime)}
    .feature-grid{display:grid;grid-template-columns:1.35fr .8fr .8fr;gap:18px}
    .feature-card{position:relative;min-height:300px;border-radius:var(--radius);overflow:hidden;background:#183f30;color:#fff}
    .feature-card img{position:absolute;inset:0;height:100%;opacity:.68}
    .feature-card:after{content:"";position:absolute;inset:0;background:linear-gradient(0deg,rgba(9,28,21,.85),transparent 65%)}
    .feature-body{position:absolute;z-index:1;left:24px;right:24px;bottom:22px}
    .feature-card h3{font-size:22px;line-height:1.35;margin-bottom:6px}
    .feature-card p{font-size:13px;color:rgba(255,255,255,.75);margin:0}
    .tag{display:inline-block;padding:4px 9px;border-radius:5px;background:var(--lime);color:var(--green-dark);font-weight:800;font-size:11px;margin-bottom:12px}
    .content-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
    .content-card{background:var(--white);border:1px solid var(--line);border-radius:var(--small-radius);overflow:hidden;transition:.25s ease}
    .content-card:hover{transform:translateY(-5px);box-shadow:var(--shadow);border-color:#b9cdbd}
    .content-card img{height:170px}
    .card-body{padding:17px}
    .card-meta{font-size:12px;color:var(--coral);font-weight:700;margin-bottom:8px}
    .content-card h3{font-size:17px;line-height:1.45;margin-bottom:8px}
    .content-card p{font-size:13px;color:var(--muted);margin:0}
    .dark-section{background:var(--green-dark);color:#fff}
    .dark-section .section-intro{color:rgba(255,255,255,.68)}
    .dark-section .section-kicker{color:var(--lime)}
    .split-stage{display:grid;grid-template-columns:1fr 1fr;gap:70px;align-items:center}
    .stage-image{border-radius:var(--radius);overflow:hidden;position:relative}
    .stage-image img{height:390px}
    .stage-caption{position:absolute;left:18px;bottom:18px;background:rgba(15,45,33,.88);padding:13px 16px;border-radius:9px;color:#fff;font-size:13px}
    .stage-list{list-style:none;margin:0;padding:0}
    .stage-list li{display:grid;grid-template-columns:42px 1fr;gap:15px;padding:20px 0;border-bottom:1px solid rgba(255,255,255,.14)}
    .stage-list li:last-child{border-bottom:0}
    .step-num{width:32px;height:32px;border-radius:50%;background:var(--lime);color:var(--green-dark);display:grid;place-items:center;font-weight:800}
    .stage-list h3{font-size:18px;margin-bottom:4px}
    .stage-list p{font-size:13px;color:rgba(255,255,255,.68);margin:0}
    .topic-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}
    .topic{padding:24px;background:#e9f0e6;border-left:3px solid var(--green);border-radius:0 var(--small-radius) var(--small-radius) 0}
    .topic h3{font-size:19px;margin-bottom:8px}
    .topic p{font-size:13px;color:var(--muted);margin:0}
    .stats-band{background:#e8f0e7}
    .stats-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
    .stat{padding:20px 0;border-bottom:2px solid var(--green)}
    .stat strong{font-size:37px;display:block;color:var(--green-dark);line-height:1.2}
    .stat span{font-size:13px;color:var(--muted)}
    .rank-layout{display:grid;grid-template-columns:1fr .8fr;gap:60px}
    .rank-list{margin:0;padding:0;list-style:none}
    .rank-item{display:grid;grid-template-columns:42px 1fr auto auto;align-items:center;gap:16px;padding:15px 0;border-bottom:1px solid var(--line)}
    .rank-index{font-size:20px;font-weight:800;color:var(--coral)}
    .rank-name{font-weight:700}
    .rank-type{font-size:11px;background:#e8f0e7;color:var(--green);padding:4px 8px;border-radius:4px}
    .rank-score{font-weight:800;color:var(--green)}
    .quote-box{background:var(--green);color:#fff;border-radius:var(--radius);padding:38px}
    .quote-box blockquote{font-size:24px;line-height:1.5;margin:0 0 22px;font-weight:600}
    .quote-box p{color:rgba(255,255,255,.72);font-size:13px;margin:0}
    .news-list{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
    .news-item{display:grid;grid-template-columns:112px 1fr;gap:15px;padding:15px;background:#fff;border:1px solid var(--line);border-radius:var(--small-radius)}
    .news-item img{height:86px;border-radius:7px}
    .news-item h3{font-size:15px;line-height:1.45;margin-bottom:5px}
    .news-item time{font-size:12px;color:var(--muted)}
    .faq-grid{display:grid;grid-template-columns:1fr 1fr;gap:14px}
    .faq-item{background:#fff;border:1px solid var(--line);border-radius:var(--small-radius);padding:22px}
    .faq-item h3{font-size:16px;margin-bottom:8px}
    .faq-item p{font-size:13px;color:var(--muted);margin:0}
    .closing{padding:78px 0;background:#dcebd7}
    .closing-inner{display:flex;justify-content:space-between;align-items:center;gap:30px}
    .closing h2{margin-bottom:8px}
    .closing p{color:var(--muted);margin:0}
    .site-footer{background:#102c22;color:#fff;padding:58px 0 25px}
    .footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:35px;padding-bottom:42px}
    .footer-brand{font-size:19px;font-weight:800;margin-bottom:13px}
    .footer-col h3{font-size:14px;margin-bottom:14px;color:var(--lime)}
    .footer-col a,.footer-col p{display:block;color:rgba(255,255,255,.62);font-size:13px;margin-bottom:8px}
    .footer-col a:hover{color:#fff}
    .footer-bottom{border-top:1px solid rgba(255,255,255,.15);padding-top:20px;color:rgba(255,255,255,.48);font-size:12px;display:flex;justify-content:space-between;gap:20px}
    :focus-visible{outline:3px solid var(--coral);outline-offset:3px}
    @media(max-width:1024px){
      .content-grid{grid-template-columns:repeat(3,1fr)}.feature-grid{grid-template-columns:1.2fr 1fr}.feature-card:last-child{display:none}
      .topic-grid{grid-template-columns:repeat(2,1fr)}.footer-grid{grid-template-columns:1.4fr 1fr 1fr}
    }
    @media(max-width:768px){
      .container{width:min(100% - 30px,620px)}.nav-links{display:none;position:absolute;top:76px;left:0;right:0;background:var(--paper);padding:12px 15px;border-bottom:1px solid var(--line);flex-direction:column;align-items:stretch}
      .nav-links.open{display:flex}.nav-links a{padding:12px}.nav-action{text-align:center}.menu-toggle{display:block}
      .hero{min-height:620px}.hero-content{padding:95px 0 62px}.hero-lead{font-size:16px}
      section{padding:68px 0}.section-head{display:block}.section-head .text-link{display:inline-block;margin-top:15px}
      .feature-grid,.split-stage,.rank-layout{grid-template-columns:1fr;gap:25px}.feature-card{min-height:280px}.feature-card:last-child{display:block}
      .content-grid{grid-template-columns:repeat(2,1fr)}.stats-grid{grid-template-columns:repeat(2,1fr)}
      .news-list{grid-template-columns:1fr}.closing-inner{display:block}.closing .button{margin-top:22px}
      .footer-grid{grid-template-columns:1fr 1fr}.footer-bottom{display:block}.footer-bottom span{display:block;margin-top:7px}
    }
    @media(max-width:520px){
      h1{font-size:42px}.hero-note{gap:18px;flex-wrap:wrap}.content-grid,.topic-grid,.faq-grid{grid-template-columns:1fr}
      .content-card img{height:205px}.signal-inner{display:block}.signal p{margin-top:5px}.rank-item{grid-template-columns:30px 1fr auto}.rank-type{display:none}
      .footer-grid{grid-template-columns:1fr}.footer-col{border-bottom:1px solid rgba(255,255,255,.12);padding-bottom:13px}
    }

/* roulang page: category1 */
:root{
 --ink:#18231f;--muted:#66736c;--paper:#f5f7f2;--white:#fff;--line:#dfe7df;
 --green:#1d694d;--green-dark:#104232;--lime:#d5e95d;--coral:#e7775d;
 --shadow:0 18px 48px rgba(22,54,40,.10);--radius:18px;--small-radius:10px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--paper);color:var(--ink);font-family:"Noto Sans SC",system-ui,sans-serif;font-size:15px;line-height:1.75}
a{color:inherit;text-decoration:none;transition:.25s ease}
img{display:block;width:100%;object-fit:cover}
button,input{font:inherit}
button:focus,a:focus{outline:3px solid rgba(213,233,93,.8);outline-offset:3px}
.container{width:min(1180px,calc(100% - 40px));margin:auto}
.site-header{position:sticky;top:0;z-index:20;background:rgba(245,247,242,.94);backdrop-filter:blur(16px);border-bottom:1px solid rgba(223,231,223,.85)}
.nav-shell{height:76px;display:flex;align-items:center;justify-content:space-between;gap:28px}
.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:11px;background:var(--green);display:grid;place-items:center;color:var(--lime);font-size:21px}
.nav-links{display:flex;gap:6px;align-items:center}
.nav-links a{padding:9px 13px;border-radius:9px;color:#5a6861;font-size:14px}
.nav-links a:hover,.nav-links a.active{color:var(--green-dark);background:#e5eee3}
.nav-action{background:var(--green)!important;color:#fff!important;padding:10px 17px!important}
.nav-action:hover{background:var(--green-dark)!important}
.menu-toggle{display:none;border:0;background:none;font-size:25px;color:var(--green)}
.category-hero{background:var(--green-dark);color:#fff;padding:86px 0 78px;position:relative;overflow:hidden}
.category-hero:after{content:"";position:absolute;width:370px;height:370px;border:1px solid rgba(213,233,93,.25);border-radius:50%;right:8%;top:-150px}
.hero-content{position:relative;z-index:1;max-width:770px}
.eyebrow{display:inline-flex;align-items:center;gap:8px;color:var(--lime);font-size:12px;letter-spacing:.12em;font-weight:800;margin-bottom:16px}
.eyebrow:before{content:"";width:28px;height:2px;background:var(--lime)}
h1{font-size:clamp(34px,5vw,62px);line-height:1.16;margin:0 0 20px;letter-spacing:0}
.hero-content h1 span{color:var(--lime)}
.hero-lead{font-size:18px;color:rgba(255,255,255,.82);max-width:680px;margin:0 0 28px}
.button-row{display:flex;gap:12px;flex-wrap:wrap}
.button{border:0;border-radius:9px;padding:12px 21px;font-weight:700;line-height:1.4;transition:.25s ease;margin:0}
.button.primary{background:var(--lime);color:var(--green-dark)}
.button.primary:hover{background:#e4f57f;transform:translateY(-2px)}
.button.ghost{border:1px solid rgba(255,255,255,.42);color:#fff;background:rgba(255,255,255,.08)}
.button.ghost:hover{background:#fff;color:var(--green-dark)}
.metric-strip{display:grid;grid-template-columns:repeat(4,1fr);gap:1px;margin-top:48px;background:rgba(255,255,255,.16);border:1px solid rgba(255,255,255,.16)}
.metric{padding:18px 20px;background:rgba(16,66,50,.62)}
.metric strong{display:block;font-size:27px;line-height:1.2;color:var(--lime)}
.metric span{font-size:12px;color:rgba(255,255,255,.7)}
section{padding:84px 0}
.section-head{display:flex;align-items:end;justify-content:space-between;gap:30px;margin-bottom:30px}
.section-kicker{color:var(--coral);font-size:12px;font-weight:800;letter-spacing:.12em;margin-bottom:8px}
h2{font-size:32px;line-height:1.25;margin:0 0 9px}
.section-intro{max-width:620px;color:var(--muted);margin:0}
.text-link{color:var(--green);font-weight:700;white-space:nowrap}
.text-link:hover{color:var(--coral)}
.channel-layout{display:grid;grid-template-columns:1.1fr .9fr;gap:22px}
.channel-feature{position:relative;min-height:420px;border-radius:var(--radius);overflow:hidden;background:var(--green-dark);color:#fff}
.channel-feature img{position:absolute;inset:0;height:100%;opacity:.7}
.channel-feature:after{content:"";position:absolute;inset:0;background:linear-gradient(0deg,rgba(9,28,21,.9),transparent 70%)}
.channel-feature-body{position:absolute;z-index:1;left:30px;right:30px;bottom:28px}
.channel-feature h3{font-size:29px;line-height:1.3;margin:0 0 8px}
.channel-feature p{color:rgba(255,255,255,.78);margin:0}
.tag{display:inline-block;padding:4px 9px;border-radius:5px;background:var(--lime);color:var(--green-dark);font-weight:800;font-size:11px;margin-bottom:12px}
.channel-list{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.channel-card{background:var(--white);border:1px solid var(--line);border-radius:var(--small-radius);padding:23px;transition:.25s ease}
.channel-card:hover{transform:translateY(-4px);box-shadow:var(--shadow);border-color:#b9cdbd}
.channel-card .number{color:var(--coral);font-size:12px;font-weight:800}
.channel-card h3{font-size:19px;margin:8px 0}
.channel-card p{font-size:13px;color:var(--muted);margin:0}
.content-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.content-card{background:var(--white);border:1px solid var(--line);border-radius:var(--small-radius);overflow:hidden;transition:.25s ease}
.content-card:hover{transform:translateY(-5px);box-shadow:var(--shadow);border-color:#b9cdbd}
.content-card img{height:170px}
.card-body{padding:17px}
.card-meta{font-size:12px;color:var(--coral);font-weight:700;margin-bottom:8px}
.content-card h3{font-size:17px;line-height:1.45;margin:0 0 8px}
.content-card p{font-size:13px;color:var(--muted);margin:0}
.dark-section{background:var(--green-dark);color:#fff}
.dark-section .section-intro{color:rgba(255,255,255,.68)}
.dark-section .section-kicker{color:var(--lime)}
.topic-panel{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}
.topic-panel article{border-top:2px solid var(--lime);padding:19px 2px}
.topic-panel h3{font-size:18px;margin:0 0 7px}
.topic-panel p{font-size:13px;color:rgba(255,255,255,.67);margin:0}
.rank-list{margin:0;padding:0;list-style:none}
.rank-item{display:grid;grid-template-columns:42px 1fr auto auto;align-items:center;gap:16px;padding:15px 0;border-bottom:1px solid var(--line)}
.rank-number{font-size:23px;font-weight:800;color:var(--coral)}
.rank-name{font-weight:700}
.rank-kind{font-size:12px;color:var(--muted)}
.rank-score{font-weight:800;color:var(--green)}
.news-list{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.news-item{display:grid;grid-template-columns:112px 1fr;gap:15px;padding:15px;background:#fff;border:1px solid var(--line);border-radius:var(--small-radius)}
.news-item img{height:86px;border-radius:7px}
.news-item h3{font-size:15px;line-height:1.45;margin:0 0 5px}
.news-item time{font-size:12px;color:var(--muted)}
.faq-grid{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.faq-item{background:#fff;border:1px solid var(--line);border-radius:var(--small-radius);padding:22px}
.faq-item h3{font-size:16px;margin:0 0 8px}
.faq-item p{font-size:13px;color:var(--muted);margin:0}
.cta-band{padding:54px 0;background:#e8efdf}
.cta-inner{display:flex;align-items:center;justify-content:space-between;gap:30px}
.cta-inner h2{margin-bottom:7px}
.cta-inner p{color:var(--muted);margin:0}
.site-footer{background:#102c22;color:#fff;padding:58px 0 25px}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:35px;padding-bottom:42px}
.footer-brand{font-size:20px;font-weight:800;margin-bottom:12px}
.footer-col h3{font-size:14px;margin:0 0 13px;color:var(--lime)}
.footer-col a,.footer-col p{display:block;color:rgba(255,255,255,.62);font-size:13px;margin:0 0 8px}
.footer-col a:hover{color:#fff}
.footer-bottom{border-top:1px solid rgba(255,255,255,.14);padding-top:18px;display:flex;justify-content:space-between;color:rgba(255,255,255,.5);font-size:12px}
@media(max-width:1024px){
 .content-grid{grid-template-columns:repeat(3,1fr)}
 .channel-layout{grid-template-columns:1fr}
 .topic-panel{grid-template-columns:repeat(2,1fr)}
}
@media(max-width:768px){
 .container{width:min(100% - 30px,620px)}
 .nav-shell{height:68px}
 .nav-links{display:none}
 .menu-toggle{display:block}
 .category-hero{padding:68px 0 58px}
 .metric-strip{grid-template-columns:repeat(2,1fr)}
 section{padding:64px 0}
 .section-head{display:block}
 .section-head .text-link{display:inline-block;margin-top:12px}
 .content-grid,.news-list{grid-template-columns:repeat(2,1fr)}
 .footer-grid{grid-template-columns:repeat(2,1fr)}
 .cta-inner{display:block}
 .cta-inner .button{margin-top:20px}
}
@media(max-width:520px){
 body{font-size:14px}
 h1{font-size:38px}
 h2{font-size:27px}
 .brand{font-size:15px}
 .brand-mark{width:34px;height:34px}
 .hero-lead{font-size:16px}
 .metric{padding:14px}
 .metric strong{font-size:23px}
 .channel-list,.content-grid,.news-list,.faq-grid{grid-template-columns:1fr}
 .channel-feature{min-height:340px}
 .topic-panel{grid-template-columns:1fr}
 .rank-item{grid-template-columns:32px 1fr auto;gap:10px}
 .rank-kind{display:none}
 .footer-grid{grid-template-columns:1fr}
 .footer-bottom{display:block}
 .footer-bottom span{display:block;margin-bottom:6px}
}