/* roulang page: index */
:root{
            --ink:#17202a;
            --muted:#66717d;
            --paper:#f7f8f6;
            --white:#fff;
            --line:#dde3e2;
            --mint:#b8e7d4;
            --green:#187c62;
            --deep:#12352e;
            --amber:#e5a54c;
            --shadow:0 18px 45px rgba(18,53,46,.10);
            --radius:20px;
        }
        *{box-sizing:border-box}
        html{scroll-behavior:smooth}
        body{margin:0;background:var(--paper);color:var(--ink);font-family:"PingFang SC","Microsoft YaHei",sans-serif;line-height:1.75}
        a{color:inherit;text-decoration:none}
        img{display:block;max-width:100%}
        button,input{font:inherit}
        .container{width:min(1160px,calc(100% - 40px));margin:0 auto}
        .site-header{position:sticky;top:0;z-index:20;background:rgba(247,248,246,.90);backdrop-filter:blur(16px);border-bottom:1px solid rgba(221,227,226,.85)}
        .nav-wrap{height:76px;display:flex;align-items:center;justify-content:space-between;gap:30px}
        .brand{display:flex;align-items:center;gap:11px;font-weight:800;letter-spacing:-.02em;white-space:nowrap}
        .brand-mark{width:34px;height:34px;border-radius:11px;background:var(--deep);color:var(--mint);display:grid;place-items:center;font-size:14px}
        .nav-links{display:flex;align-items:center;gap:8px}
        .nav-links a{padding:9px 15px;border-radius:10px;color:var(--muted);font-size:14px;transition:.25s}
        .nav-links a:hover,.nav-links a.active{background:#e6f1ec;color:var(--green)}
        .nav-note{font-size:12px;color:var(--muted);border-left:1px solid var(--line);padding-left:22px}
        .hero{padding:76px 0 58px;background:linear-gradient(135deg,#f7f8f6 0%,#e7f3ed 100%);overflow:hidden}
        .hero-grid{display:grid;grid-template-columns:1.08fr .92fr;gap:56px;align-items:center}
        .eyebrow{display:inline-flex;align-items:center;gap:8px;color:var(--green);font-size:13px;font-weight:700;letter-spacing:.08em}
        .eyebrow:before{content:"";width:7px;height:7px;border-radius:50%;background:var(--amber);box-shadow:0 0 0 5px rgba(229,165,76,.16)}
        h1{font-size:clamp(38px,5vw,66px);line-height:1.13;letter-spacing:-.045em;margin:18px 0 22px;max-width:700px}
        .hero-copy{font-size:17px;color:var(--muted);max-width:650px;margin:0 0 30px}
        .actions{display:flex;gap:12px;flex-wrap:wrap}
        .btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border:1px solid transparent;border-radius:11px;padding:12px 20px;font-size:14px;font-weight:700;transition:.25s;cursor:pointer}
        .btn-primary{background:var(--deep);color:white;box-shadow:0 8px 18px rgba(18,53,46,.18)}
        .btn-primary:hover{background:var(--green);transform:translateY(-2px)}
        .btn-ghost{border-color:var(--line);background:rgba(255,255,255,.62);color:var(--deep)}
        .btn-ghost:hover{border-color:var(--green);color:var(--green)}
        .hero-stage{position:relative;min-height:380px;border-radius:28px;overflow:hidden;box-shadow:var(--shadow);background:var(--deep)}
        .hero-stage img{width:100%;height:100%;min-height:380px;object-fit:cover;opacity:.74}
        .stage-overlay{position:absolute;inset:0;padding:26px;display:flex;flex-direction:column;justify-content:space-between;background:linear-gradient(180deg,rgba(18,53,46,.08),rgba(18,53,46,.85))}
        .stage-top{display:flex;justify-content:space-between;color:white;font-size:12px}
        .stage-panel{color:white;max-width:330px}
        .stage-panel strong{display:block;font-size:27px;line-height:1.25;margin-bottom:10px}
        .stage-panel span{color:#d9eee5;font-size:14px}
        .ticker{background:var(--amber);color:#332410;padding:12px 0;font-size:13px;font-weight:700}
        .ticker-inner{display:flex;gap:28px;align-items:center;justify-content:center}
        .section{padding:82px 0}
        .section.alt{background:#fff}
        .section.dark{background:var(--deep);color:#fff}
        .section-heading{display:flex;justify-content:space-between;align-items:end;gap:30px;margin-bottom:34px}
        .section-heading h2{font-size:clamp(27px,3.5vw,42px);line-height:1.2;letter-spacing:-.035em;margin:0}
        .section-heading p{max-width:500px;margin:0;color:var(--muted);font-size:15px}
        .dark .section-heading p{color:#b8cbc5}
        .value-grid{display:grid;grid-template-columns:1.25fr .75fr;gap:20px}
        .value-main{padding:34px;border-radius:var(--radius);background:#eef8f3;border:1px solid #d9eee5;min-height:245px}
        .value-main h3{font-size:25px;margin:0 0 12px}
        .value-main p,.feature-card p,.step p,.quote p,.resource p{color:var(--muted);font-size:14px;margin:0}
        .metric-stack{display:grid;gap:20px}
        .metric{padding:25px;background:white;border:1px solid var(--line);border-radius:var(--radius);display:flex;justify-content:space-between;align-items:end}
        .metric b{font-size:33px;line-height:1;color:var(--green)}
        .metric span{font-size:13px;color:var(--muted)}
        .feature-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
        .feature-card{padding:27px;background:#fff;border:1px solid var(--line);border-radius:var(--radius);transition:.25s}
        .feature-card:hover{transform:translateY(-5px);box-shadow:var(--shadow);border-color:#b7d9cc}
        .icon{width:42px;height:42px;border-radius:13px;display:grid;place-items:center;background:#e7f3ed;color:var(--green);font-weight:800;margin-bottom:20px}
        .feature-card h3{margin:0 0 9px;font-size:18px}
        .number{color:var(--amber);font-weight:800;font-size:13px}
        .steps{display:grid;grid-template-columns:repeat(3,1fr);gap:0;border-top:1px solid #cfe0da}
        .step{padding:28px 28px 10px 0;border-right:1px solid #cfe0da;margin-right:28px}
        .step:last-child{border-right:0;margin-right:0}
        .step h3{font-size:19px;margin:17px 0 9px}
        .step-num{font-size:12px;color:var(--mint);letter-spacing:.12em}
        .media-row{display:grid;grid-template-columns:1fr 1fr;gap:20px}
        .media-card{min-height:285px;border-radius:var(--radius);overflow:hidden;position:relative;background:#193f36}
        .media-card img{width:100%;height:100%;object-fit:cover;opacity:.68;transition:.35s}
        .media-card:hover img{transform:scale(1.04);opacity:.82}
        .media-card .media-text{position:absolute;inset:auto 24px 22px;color:#fff}
        .media-text h3{margin:0 0 6px;font-size:23px}
        .media-text p{margin:0;color:#d8e9e2;font-size:13px}
        .quote-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
        .quote{padding:26px;background:#fff;border:1px solid var(--line);border-radius:var(--radius)}
        .quote p{font-size:15px;color:var(--ink);margin-bottom:22px}
        .quote footer{display:flex;align-items:center;gap:10px;color:var(--muted);font-size:12px}
        .avatar{width:32px;height:32px;border-radius:50%;background:#d9eee5;color:var(--green);display:grid;place-items:center;font-weight:800}
        .audience-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:12px}
        .audience{padding:20px;border-left:3px solid var(--mint);background:#f2f7f4}
        .audience strong{display:block;margin-bottom:6px}
        .audience span{font-size:13px;color:var(--muted)}
        .requirements{display:grid;grid-template-columns:1fr 1fr;gap:18px}
        .requirement{padding:25px;border:1px solid #31594e;border-radius:var(--radius);background:rgba(255,255,255,.04)}
        .requirement h3{margin:0 0 9px;font-size:18px;color:var(--mint)}
        .requirement p{margin:0;color:#bfd2cb;font-size:14px}
        .news-list{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
        .resource{padding:24px;border-top:3px solid var(--green);background:#fff;border-radius:0 0 var(--radius) var(--radius);border-left:1px solid var(--line);border-right:1px solid var(--line);border-bottom:1px solid var(--line)}
        .resource time{font-size:12px;color:var(--green);font-weight:700}
        .resource h3{font-size:19px;line-height:1.4;margin:13px 0 9px}
        .resource a{display:inline-block;margin-top:18px;color:var(--green);font-weight:700;font-size:13px}
        .closing{padding:80px 0;background:#e4f2eb;text-align:center}
        .closing h2{font-size:clamp(28px,4vw,48px);margin:0 auto 15px;line-height:1.2}
        .closing p{color:var(--muted);max-width:600px;margin:0 auto 26px}
        .site-footer{background:#102c26;color:#bfd2cb;padding:52px 0 24px}
        .footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr;gap:40px;padding-bottom:38px;border-bottom:1px solid #315149}
        .footer-brand{color:#fff;font-size:18px;font-weight:800;margin-bottom:13px}
        .footer-grid p{font-size:13px;max-width:330px;margin:0}
        .footer-grid h3{font-size:13px;color:#fff;margin:0 0 13px}
        .footer-links{display:grid;gap:7px;font-size:13px}
        .footer-links a:hover{color:var(--mint)}
        .copyright{display:flex;justify-content:space-between;gap:20px;padding-top:20px;font-size:12px;color:#8eaba2}
        :focus-visible{outline:3px solid rgba(229,165,76,.7);outline-offset:3px}
        @media(max-width:900px){
            .hero-grid,.value-grid,.media-row{grid-template-columns:1fr}
            .hero-stage{min-height:320px}
            .feature-grid,.quote-grid,.news-list{grid-template-columns:repeat(2,1fr)}
            .audience-grid{grid-template-columns:repeat(2,1fr)}
            .nav-note{display:none}
        }
        @media(max-width:640px){
            .container{width:min(100% - 28px,1160px)}
            .nav-wrap{height:66px}
            .brand{font-size:13px}
            .brand-mark{width:30px;height:30px}
            .nav-links a{padding:7px 8px;font-size:12px}
            .hero{padding:52px 0 42px}
            h1{font-size:39px}
            .hero-copy{font-size:15px}
            .ticker-inner{justify-content:flex-start;overflow:hidden;white-space:nowrap}
            .section{padding:58px 0}
            .section-heading{display:block}
            .section-heading p{margin-top:13px}
            .feature-grid,.quote-grid,.news-list,.requirements{grid-template-columns:1fr}
            .steps{display:block}
            .step{border-right:0;border-bottom:1px solid #cfe0da;margin:0;padding:24px 0}
            .step:last-child{border-bottom:0}
            .audience-grid{grid-template-columns:1fr}
            .footer-grid{grid-template-columns:1fr;gap:26px}
            .copyright{display:block}
            .copyright span{display:block;margin-top:8px}
        }

/* roulang page: category1 */
:root{
      --ink:#17202a;
      --muted:#66717d;
      --paper:#f7f8f6;
      --white:#fff;
      --line:#dde3e2;
      --mint:#b8e7d4;
      --green:#187c62;
      --deep:#12352e;
      --amber:#e5a54c;
      --shadow:0 18px 45px rgba(18,53,46,.10);
      --radius:20px;
    }
    *,*::before,*::after{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{margin:0;background:var(--paper);color:var(--ink);font-family:"PingFang SC","Microsoft YaHei",sans-serif;line-height:1.75}
    a{color:inherit;text-decoration:none}
    img{display:block;max-width:100%}
    button,input{font:inherit}
    button,a{-webkit-tap-highlight-color:transparent}
    :focus-visible{outline:3px solid rgba(24,124,98,.38);outline-offset:3px}
    .container{width:min(1160px,calc(100% - 40px));margin:0 auto}
    .site-header{position:sticky;top:0;z-index:20;background:rgba(247,248,246,.92);backdrop-filter:blur(16px);border-bottom:1px solid rgba(221,227,226,.85)}
    .nav-wrap{height:76px;display:flex;align-items:center;justify-content:space-between;gap:30px}
    .brand{display:flex;align-items:center;gap:11px;font-weight:800;white-space:nowrap}
    .brand-mark{width:34px;height:34px;border-radius:11px;background:var(--deep);color:var(--mint);display:grid;place-items:center;font-size:14px}
    .nav-links{display:flex;align-items:center;gap:8px}
    .nav-links a{padding:9px 15px;border-radius:10px;color:var(--muted);font-size:14px;transition:background .25s,color .25s}
    .nav-links a:hover,.nav-links a.active{background:#e6f1ec;color:var(--green)}
    .nav-note{font-size:12px;color:var(--muted);border-left:1px solid var(--line);padding-left:22px}
    .hero{padding:48px 0 34px;background:linear-gradient(135deg,#f7f8f6 0%,#e7f3ed 100%);overflow:hidden}
    .breadcrumb{display:flex;align-items:center;gap:9px;color:var(--muted);font-size:13px;margin-bottom:24px}
    .breadcrumb a{transition:color .2s}
    .breadcrumb a:hover{color:var(--green)}
    .hero-heading{max-width:850px;margin:0 0 28px}
    .eyebrow{display:inline-flex;align-items:center;gap:8px;color:var(--green);font-size:13px;font-weight:700}
    .eyebrow:before{content:"";width:7px;height:7px;border-radius:50%;background:var(--amber);box-shadow:0 0 0 5px rgba(229,165,76,.16)}
    h1{font-size:clamp(34px,5vw,58px);line-height:1.16;letter-spacing:0;margin:15px 0 14px;max-width:800px}
    .hero-summary{font-size:17px;color:var(--muted);max-width:760px;margin:0}
    .editorial-layout{display:grid;grid-template-columns:minmax(0,1fr) 320px;gap:28px;align-items:stretch}
    .cover-art{position:relative;min-height:320px;border-radius:var(--radius);overflow:hidden;background:#153d33;box-shadow:var(--shadow)}
    .cover-art img{width:100%;height:100%;min-height:320px;object-fit:cover;opacity:.72}
    .cover-shade{position:absolute;inset:0;padding:28px;display:flex;flex-direction:column;justify-content:space-between;background:linear-gradient(180deg,rgba(18,53,46,.05),rgba(18,53,46,.83))}
    .cover-label{align-self:flex-start;padding:6px 10px;border:1px solid rgba(255,255,255,.42);border-radius:999px;color:#fff;font-size:12px;letter-spacing:0}
    .cover-title{color:#fff;max-width:540px}
    .cover-title small{display:block;color:#d7eee4;font-size:12px;margin-bottom:8px}
    .cover-title strong{display:block;font-size:28px;line-height:1.3}
    .cover-title span{display:block;color:#d7eee4;font-size:13px;margin-top:9px}
    .contents-panel{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:25px;display:flex;flex-direction:column}
    .contents-panel h2{font-size:17px;margin:0 0 8px}
    .contents-panel>p{color:var(--muted);font-size:13px;margin:0 0 18px}
    .contents-list{list-style:none;padding:0;margin:0;display:grid;gap:0}
    .contents-list li{display:flex;gap:12px;padding:11px 0;border-top:1px solid var(--line);font-size:13px}
    .contents-list b{color:var(--green);font-size:12px;min-width:24px}
    .contents-bottom{margin-top:auto;padding-top:18px}
    .btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border:1px solid transparent;border-radius:11px;padding:12px 20px;font-size:14px;font-weight:700;transition:background .25s,color .25s,transform .25s,border-color .25s;cursor:pointer}
    .btn-primary{background:var(--deep);color:#fff;box-shadow:0 8px 18px rgba(18,53,46,.18)}
    .btn-primary:hover{background:var(--green);transform:translateY(-2px)}
    .btn-ghost{border-color:var(--line);background:rgba(255,255,255,.72);color:var(--deep)}
    .btn-ghost:hover{border-color:var(--green);color:var(--green)}
    .section{padding:76px 0;border-top:1px solid rgba(221,227,226,.7)}
    .section.alt{background:#fff}
    .section.dark{background:var(--deep);color:#fff;border:0}
    .section-heading{display:flex;justify-content:space-between;align-items:end;gap:30px;margin-bottom:32px}
    .section-heading h2{font-size:clamp(26px,3.5vw,40px);line-height:1.2;margin:0}
    .section-heading p{max-width:500px;margin:0;color:var(--muted);font-size:15px}
    .dark .section-heading p{color:#b8cbc5}
    .intro-band{display:grid;grid-template-columns:1fr 1fr;gap:50px;align-items:center}
    .intro-band h2{font-size:32px;line-height:1.3;margin:0}
    .intro-band p{color:var(--muted);margin:0;font-size:15px}
    .stats-strip{display:grid;grid-template-columns:repeat(3,1fr);border-top:1px solid #315149;border-bottom:1px solid #315149}
    .stat{padding:25px 22px;border-right:1px solid #315149}
    .stat:last-child{border-right:0}
    .stat strong{font-size:29px;color:#fff;display:block;line-height:1.2}
    .stat span{font-size:12px;color:#b8cbc5}
    .topic-grid{display:grid;grid-template-columns:1.2fr .8fr;gap:18px}
    .topic-feature{min-height:300px;position:relative;overflow:hidden;border-radius:var(--radius);background:#193f36}
    .topic-feature img{height:100%;width:100%;min-height:300px;object-fit:cover;opacity:.7;transition:transform .4s,opacity .4s}
    .topic-feature:hover img{transform:scale(1.035);opacity:.82}
    .topic-feature .topic-overlay{position:absolute;inset:0;padding:25px;display:flex;flex-direction:column;justify-content:end;background:linear-gradient(180deg,transparent 20%,rgba(18,53,46,.82))}
    .topic-overlay h3{color:#fff;font-size:23px;margin:0 0 6px}
    .topic-overlay p{color:#d8e9e2;font-size:13px;margin:0;max-width:480px}
    .topic-side{display:grid;gap:18px}
    .topic-note{padding:24px;border:1px solid var(--line);border-radius:var(--radius);background:#f5faf7}
    .topic-note span,.tag{display:inline-flex;align-items:center;border-radius:999px;background:#e6f1ec;color:var(--green);padding:5px 10px;font-size:11px;font-weight:700}
    .topic-note h3{margin:12px 0 7px;font-size:18px}
    .topic-note p{margin:0;color:var(--muted);font-size:13px}
    .feature-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
    .feature-card{padding:24px;background:#fff;border:1px solid var(--line);border-radius:var(--radius);transition:transform .25s,box-shadow .25s,border-color .25s}
    .feature-card:hover{transform:translateY(-4px);box-shadow:var(--shadow);border-color:#b7d9cc}
    .feature-card .index{color:var(--green);font-size:12px;font-weight:800}
    .feature-card h3{font-size:18px;margin:12px 0 7px}
    .feature-card p{color:var(--muted);font-size:13px;margin:0}
    .story-list{display:grid;grid-template-columns:1fr 1fr;gap:0 42px}
    .story-item{display:grid;grid-template-columns:48px 1fr;gap:14px;padding:19px 0;border-top:1px solid var(--line)}
    .story-no{font-size:12px;color:var(--green);font-weight:800;padding-top:3px}
    .story-item h3{font-size:16px;margin:0 0 5px}
    .story-item p{font-size:13px;color:var(--muted);margin:0}
    .quote-panel{padding:34px 38px;border-left:4px solid var(--amber);background:#f0f7f3;border-radius:0 var(--radius) var(--radius) 0}
    .quote-panel blockquote{font-size:21px;line-height:1.55;margin:0 0 14px;max-width:850px}
    .quote-panel p{color:var(--muted);font-size:13px;margin:0}
    .audience-row{display:grid;grid-template-columns:repeat(4,1fr);gap:12px}
    .audience-item{padding:18px;border-top:2px solid var(--mint);background:rgba(255,255,255,.06)}
    .audience-item strong{display:block;color:#fff;font-size:15px;margin-bottom:5px}
    .audience-item span{font-size:12px;color:#b8cbc5}
    .news-list{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
    .news-item{padding:23px;border:1px solid var(--line);background:#fff;border-radius:var(--radius);transition:transform .25s,box-shadow .25s}
    .news-item:hover{transform:translateY(-3px);box-shadow:var(--shadow)}
    .news-item time{color:var(--green);font-size:11px;font-weight:700}
    .news-item h3{font-size:17px;line-height:1.45;margin:10px 0 8px}
    .news-item p{font-size:13px;color:var(--muted);margin:0}
    .collection-bar{display:flex;justify-content:space-between;align-items:center;gap:25px;padding:27px 30px;background:#edf5f1;border:1px solid #d8e9e1;border-radius:var(--radius)}
    .collection-bar h2{font-size:20px;margin:0 0 5px}
    .collection-bar p{color:var(--muted);font-size:13px;margin:0}
    .site-footer{background:#102c26;color:#bfd2cb;padding:52px 0 24px}
    .footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr;gap:40px;padding-bottom:38px;border-bottom:1px solid #315149}
    .footer-brand{color:#fff;font-size:18px;font-weight:800;margin-bottom:13px}
    .footer-grid p{font-size:13px;max-width:330px;margin:0}
    .footer-grid h3{font-size:13px;color:#fff;margin:0 0 13px}
    .footer-links{display:grid;gap:7px;font-size:13px}
    .footer-links a{transition:color .2s}
    .footer-links a:hover{color:var(--mint)}
    .copyright{display:flex;justify-content:space-between;gap:20px;padding-top:20px;font-size:12px;color:#8eaba2}
    @media(max-width:900px){
      .container{width:min(100% - 32px,1160px)}
      .nav-wrap{height:70px}
      .nav-note{display:none}
      .editorial-layout{grid-template-columns:1fr 285px;gap:18px}
      .cover-art,.cover-art img{min-height:300px}
      .feature-grid{grid-template-columns:repeat(2,1fr)}
      .topic-grid{grid-template-columns:1fr 1fr}
      .audience-row{grid-template-columns:repeat(2,1fr)}
    }
    @media(max-width:768px){
      .editorial-layout{grid-template-columns:1fr}
      .cover-art,.cover-art img{min-height:280px}
      .contents-panel{min-height:0}
      .contents-bottom{margin-top:15px}
      .intro-band{grid-template-columns:1fr;gap:18px}
      .topic-grid{grid-template-columns:1fr}
      .topic-side{grid-template-columns:1fr 1fr}
      .story-list{grid-template-columns:1fr}
      .news-list{grid-template-columns:repeat(2,1fr)}
      .section{padding:60px 0}
    }
    @media(max-width:520px){
      .container{width:calc(100% - 28px)}
      .nav-wrap{height:66px;gap:10px}
      .brand{font-size:12px;gap:8px}
      .brand-mark{width:30px;height:30px;border-radius:10px}
      .nav-links{gap:2px}
      .nav-links a{font-size:12px;padding:7px 8px}
      .hero{padding:32px 0 28px}
      .breadcrumb{margin-bottom:18px}
      h1{font-size:36px}
      .hero-summary{font-size:15px}
      .cover-art,.cover-art img{min-height:250px}
      .cover-shade{padding:20px}
      .cover-title strong{font-size:23px}
      .section{padding:48px 0}
      .section-heading{display:block;margin-bottom:24px}
      .section-heading p{margin-top:12px}
      .feature-grid,.news-list,.topic-side{grid-template-columns:1fr}
      .stats-strip{grid-template-columns:1fr}
      .stat{border-right:0;border-bottom:1px solid #315149;padding:17px}
      .stat:last-child{border-bottom:0}
      .audience-row{grid-template-columns:1fr 1fr}
      .quote-panel{padding:23px}
      .quote-panel blockquote{font-size:18px}
      .collection-bar{display:block;padding:22px}
      .collection-bar .btn{margin-top:17px}
      .footer-grid{grid-template-columns:1fr;gap:25px}
      .copyright{display:block}
      .copyright span{display:block;margin-top:8px}
    }
    @media(prefers-reduced-motion:reduce){
      *,*::before,*::after{scroll-behavior:auto!important;transition:none!important}
    }