/* roulang page: index */
:root{
            --ink:#17212b;
            --muted:#66727d;
            --soft:#f4f6f8;
            --paper:#ffffff;
            --line:#e3e8ec;
            --brand:#b64a38;
            --brand-dark:#873324;
            --gold:#d59b58;
            --night:#202b35;
            --radius:20px;
            --shadow:0 16px 42px rgba(27,38,48,.09);
            --ease:all .25s ease;
        }
        *{box-sizing:border-box;margin:0;padding:0}
        html{scroll-behavior:smooth}
        body{font-family:"Noto Sans SC","Microsoft YaHei",Arial,sans-serif;color:var(--ink);background:#fbfcfd;line-height:1.75;font-size:15px}
        a{color:inherit;text-decoration:none}
        img{display:block;max-width:100%;height:auto}
        button,input{font:inherit}
        button{cursor:pointer}
        .container{width:min(1180px,calc(100% - 40px));margin:auto}
        .topbar{height:34px;background:var(--night);color:#c8d0d5;font-size:12px}
        .topbar .container{height:100%;display:flex;align-items:center;justify-content:space-between}
        .topbar strong{color:#f2c27b;font-weight:600}
        header{position:sticky;top:0;z-index:20;background:rgba(255,255,255,.95);backdrop-filter:blur(14px);border-bottom:1px solid var(--line)}
        .nav{min-height:74px;display:flex;align-items:center;gap:30px}
        .logo{display:flex;align-items:center;gap:10px;font-size:21px;font-weight:800;letter-spacing:-.5px;white-space:nowrap}
        .logo-mark{width:34px;height:34px;border-radius:11px;background:var(--brand);color:#fff;display:grid;place-items:center;font-size:14px;box-shadow:0 7px 14px rgba(182,74,56,.24)}
        .nav-links{display:flex;align-items:center;gap:5px;flex:1}
        .nav-links a{padding:10px 13px;border-radius:10px;color:#596570;font-weight:600;transition:var(--ease);white-space:nowrap}
        .nav-links a:hover,.nav-links a.active{color:var(--brand);background:#fff1ed}
        .nav-search{display:flex;align-items:center;border:1px solid var(--line);border-radius:12px;overflow:hidden;background:#fff}
        .nav-search input{width:140px;border:0;outline:0;padding:9px 11px;color:var(--ink)}
        .nav-search button{border:0;background:var(--brand);color:#fff;padding:9px 13px;transition:var(--ease)}
        .nav-search button:hover{background:var(--brand-dark)}
        .hero{min-height:570px;display:flex;align-items:center;position:relative;background:linear-gradient(90deg,rgba(24,32,39,.94) 0%,rgba(24,32,39,.73) 49%,rgba(24,32,39,.28) 100%),url('/assets/images/backpic/back-1.jpg') center/cover}
        .hero-content{max-width:720px;color:#fff;padding:80px 0}
        .eyebrow{display:inline-flex;align-items:center;gap:8px;color:#f1be83;font-weight:700;font-size:13px;letter-spacing:1px;margin-bottom:18px}
        .eyebrow:before{content:"";width:25px;height:2px;background:var(--gold)}
        h1{font-size:clamp(38px,5vw,68px);line-height:1.16;letter-spacing:-2px;margin-bottom:24px}
        .hero p{font-size:18px;line-height:1.9;color:#e7ecee;max-width:670px}
        .hero-actions{display:flex;gap:12px;margin-top:30px;flex-wrap:wrap}
        .btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:12px 21px;border-radius:12px;border:1px solid transparent;font-weight:700;transition:var(--ease)}
        .btn-primary{background:var(--brand);color:#fff;box-shadow:0 10px 20px rgba(182,74,56,.25)}
        .btn-primary:hover{background:#d05b45;transform:translateY(-2px)}
        .btn-ghost{border-color:rgba(255,255,255,.42);color:#fff;background:rgba(255,255,255,.08)}
        .btn-ghost:hover{background:#fff;color:var(--ink)}
        .section{padding:88px 0}
        .section-head{display:flex;justify-content:space-between;align-items:end;gap:25px;margin-bottom:30px}
        .section-head h2{font-size:30px;line-height:1.3;letter-spacing:-.8px}
        .section-head p{max-width:600px;color:var(--muted)}
        .kicker{color:var(--brand);font-size:12px;font-weight:800;letter-spacing:1.5px;text-transform:uppercase;margin-bottom:7px}
        .quick-panel{margin-top:-38px;position:relative;z-index:2;background:#fff;border:1px solid var(--line);border-radius:18px;padding:20px;box-shadow:var(--shadow);display:flex;align-items:center;gap:18px}
        .quick-panel h3{font-size:16px;white-space:nowrap}
        .quick-search{display:flex;flex:1;border:1px solid var(--line);border-radius:11px;overflow:hidden}
        .quick-search input{flex:1;border:0;padding:12px 15px;outline:0;background:#fafbfc}
        .quick-search button{border:0;padding:0 22px;background:var(--night);color:#fff}
        .trend{display:flex;gap:8px;flex-wrap:wrap}
        .tag{display:inline-flex;padding:5px 10px;border-radius:30px;background:#f9ece8;color:var(--brand-dark);font-size:12px;font-weight:700}
        .matrix{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
        .matrix-card{position:relative;min-height:205px;border-radius:var(--radius);overflow:hidden;color:#fff;background:#333}
        .matrix-card img{width:100%;height:100%;object-fit:cover;opacity:.76;transition:var(--ease)}
        .matrix-card:hover img{transform:scale(1.06);opacity:.9}
        .matrix-card:after{content:"";position:absolute;inset:35% 0 0;background:linear-gradient(transparent,rgba(0,0,0,.8))}
        .matrix-card div{position:absolute;z-index:1;left:20px;right:18px;bottom:18px}
        .matrix-card h3{font-size:19px;margin-bottom:5px}
        .matrix-card p{font-size:13px;color:#e7e7e7;line-height:1.55}
        .feature-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:22px}
        .feature-main{min-height:330px;border-radius:var(--radius);overflow:hidden;position:relative;color:#fff;background:#252f38}
        .feature-main img{width:100%;height:100%;object-fit:cover;opacity:.66}
        .feature-main div{position:absolute;left:28px;right:28px;bottom:25px}
        .feature-main h3{font-size:27px;line-height:1.35;margin:8px 0}
        .feature-main p{color:#e5e9ea}
        .feature-side{display:grid;gap:14px}
        .mini-card{background:#fff;border:1px solid var(--line);border-radius:16px;padding:20px;transition:var(--ease)}
        .mini-card:hover,.news-item:hover{box-shadow:var(--shadow);transform:translateY(-3px)}
        .mini-card h3{font-size:17px;margin:8px 0 4px}
        .mini-card p{font-size:13px;color:var(--muted)}
        .icon{width:34px;height:34px;border-radius:10px;background:#fff1ed;color:var(--brand);display:grid;place-items:center;font-weight:800}
        .updates{background:var(--soft)}
        .news-layout{display:grid;grid-template-columns:1.4fr .6fr;gap:22px}
        .news-list{display:grid;gap:12px}
        .news-item{display:grid;grid-template-columns:105px 1fr auto;gap:17px;align-items:center;background:#fff;border:1px solid var(--line);padding:13px;border-radius:15px;transition:var(--ease)}
        .news-item img{width:105px;height:78px;object-fit:cover;border-radius:10px}
        .news-item h3{font-size:16px;line-height:1.45;margin-bottom:3px}
        .news-item p{font-size:13px;color:var(--muted);display:-webkit-box;-webkit-line-clamp:1;-webkit-box-orient:vertical;overflow:hidden}
        .date{font-size:12px;color:#8b969e;white-space:nowrap}
        .empty{padding:30px;background:#fff;border:1px dashed #ccd4d9;border-radius:14px;color:var(--muted)}
        .ranking{background:var(--night);color:#fff}
        .ranking .section-head p{color:#b9c3c9}
        .rank-list{display:grid;grid-template-columns:repeat(3,1fr);gap:15px}
        .rank-item{display:flex;align-items:center;gap:15px;padding:18px;background:rgba(255,255,255,.07);border:1px solid rgba(255,255,255,.1);border-radius:15px}
        .rank-no{font-size:27px;font-weight:800;color:#e5ac6e;width:35px}
        .rank-item h3{font-size:16px}
        .rank-item p{font-size:12px;color:#aebac0;margin-top:3px}
        .resources{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
        .resource{background:#fff;border:1px solid var(--line);border-radius:18px;padding:24px;min-height:190px}
        .resource h3{margin:18px 0 9px}
        .resource p{font-size:13px;color:var(--muted);line-height:1.7}
        .resource a{display:inline-flex;margin-top:15px;color:var(--brand);font-size:13px;font-weight:700}
        .resource a:hover{text-decoration:underline}
        .timeline{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
        .timeline-step{position:relative;padding:22px 20px 20px;background:#fff;border-top:3px solid var(--brand);border-radius:14px;box-shadow:0 7px 20px rgba(27,38,48,.05)}
        .timeline-step span{font-size:12px;color:var(--brand);font-weight:800}
        .timeline-step h3{font-size:17px;margin:9px 0 6px}
        .timeline-step p{font-size:13px;color:var(--muted)}
        .voices{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
        .voice{background:#fff;border:1px solid var(--line);border-radius:18px;padding:25px}
        .quote{font-size:30px;color:var(--gold);line-height:1;margin-bottom:8px}
        .voice p{color:#56636c;font-size:14px;line-height:1.8}
        .voice strong{display:block;margin-top:17px;font-size:13px}
        .voice small{color:#8a969d}
        .tag-cloud{display:flex;flex-wrap:wrap;gap:11px;align-items:center}
        .tag-cloud a{padding:10px 15px;border:1px solid var(--line);border-radius:30px;background:#fff;color:#596570;font-size:13px;transition:var(--ease)}
        .tag-cloud a:hover{border-color:var(--brand);color:var(--brand);background:#fff7f5}
        .closing{padding:80px 0;background:linear-gradient(120deg,#7f3026,#b64a38);color:#fff}
        .closing-inner{display:flex;align-items:center;justify-content:space-between;gap:25px}
        .closing h2{font-size:32px;line-height:1.35;margin-bottom:10px}
        .closing p{color:#f7ded8;max-width:680px}
        .closing .btn{background:#fff;color:var(--brand-dark)}
        .closing .btn:hover{background:#ffe9df}
        footer{background:#18232c;color:#b3c0c7;padding:55px 0 25px}
        .footer-grid{display:grid;grid-template-columns:1.3fr 1fr 1fr 1fr;gap:35px;padding-bottom:38px}
        footer .logo{color:#fff;margin-bottom:15px}
        footer .logo-mark{background:#d0644e}
        footer p{font-size:13px;line-height:1.8;max-width:300px}
        footer h3{font-size:14px;color:#fff;margin-bottom:13px}
        footer ul{list-style:none}
        footer li{margin:7px 0;font-size:13px}
        footer a{transition:var(--ease)}
        footer a:hover{color:#f1bd7a}
        .copyright{border-top:1px solid rgba(255,255,255,.12);padding-top:20px;font-size:12px;color:#84929a;display:flex;justify-content:space-between;gap:15px}
        :focus-visible{outline:3px solid rgba(213,155,88,.55);outline-offset:3px}
        @media(max-width:1024px){
            .nav{gap:16px}.nav-links{gap:0}.nav-links a{padding:9px 8px;font-size:13px}
            .nav-search input{width:100px}.matrix{grid-template-columns:repeat(2,1fr)}
            .timeline{grid-template-columns:repeat(2,1fr)}
        }
        @media(max-width:768px){
            .container{width:min(100% - 28px,620px)}
            .topbar .container{font-size:11px}.topbar span{display:none}
            .nav{min-height:64px;flex-wrap:wrap;padding:10px 0}
            .logo{font-size:19px}.nav-links{order:3;width:100%;overflow-x:auto;padding-bottom:2px}
            .nav-links a{font-size:12px;padding:6px 10px}
            .nav-search{margin-left:auto}.nav-search input{width:86px;padding:7px}
            .nav-search button{padding:7px 10px}
            .hero{min-height:510px}.hero-content{padding:65px 0}
            h1{font-size:42px;letter-spacing:-1px}.hero p{font-size:16px}
            .quick-panel{margin-top:-25px;display:block}.quick-panel h3{margin-bottom:11px}
            .quick-search{margin-bottom:13px}
            .feature-grid,.news-layout{grid-template-columns:1fr}.rank-list,.voices,.resources{grid-template-columns:1fr}
            .section{padding:62px 0}.section-head{display:block}.section-head p{margin-top:10px}
            .closing-inner{display:block}.closing .btn{margin-top:23px}
            .footer-grid{grid-template-columns:repeat(2,1fr);gap:25px}
        }
        @media(max-width:520px){
            body{font-size:14px}.matrix{grid-template-columns:1fr}.timeline{grid-template-columns:1fr}
            .matrix-card{min-height:180px}.news-item{grid-template-columns:78px 1fr;gap:12px}
            .news-item img{width:78px;height:68px}.news-item .date{grid-column:2}
            .hero{min-height:535px}.hero-content{padding-top:80px}
            h1{font-size:36px}.hero-actions .btn{width:100%}
            .quick-search button{padding:0 14px}.section-head h2{font-size:26px}
            .footer-grid{grid-template-columns:1fr}.copyright{display:block}.copyright span{display:block;margin-top:6px}
        }

/* roulang page: article */
:root{
            --ink:#17212b;
            --muted:#66727d;
            --soft:#f4f6f8;
            --paper:#fff;
            --line:#e3e8ec;
            --brand:#b64a38;
            --brand-dark:#873324;
            --gold:#d59b58;
            --night:#202b35;
            --radius:20px;
            --shadow:0 16px 42px rgba(27,38,48,.09);
            --ease:all .25s ease;
        }
        *{box-sizing:border-box}
        html{scroll-behavior:smooth}
        body{margin:0;background:#fbfcfd;color:var(--ink);font-family:"Noto Sans SC","Microsoft YaHei",Arial,sans-serif;font-size:15px;line-height:1.8}
        a{color:inherit;text-decoration:none}
        img{display:block;max-width:100%;height:auto}
        button,input{font:inherit}
        button{cursor:pointer}
        :focus-visible{outline:3px solid rgba(213,155,88,.55);outline-offset:3px}
        .container{width:min(1180px,calc(100% - 40px));margin:auto}
        .topbar{height:34px;background:var(--night);color:#c8d0d5;font-size:12px}
        .topbar .container{height:100%;display:flex;align-items:center;justify-content:space-between}
        .topbar strong{color:#f2c27b;font-weight:600}
        header{position:sticky;top:0;z-index:20;background:rgba(255,255,255,.96);backdrop-filter:blur(14px);border-bottom:1px solid var(--line)}
        .nav{min-height:74px;display:flex;align-items:center;gap:30px}
        .logo{display:flex;align-items:center;gap:10px;font-size:21px;font-weight:800;letter-spacing:-.5px;white-space:nowrap}
        .logo-mark{width:34px;height:34px;border-radius:11px;background:var(--brand);color:#fff;display:grid;place-items:center;font-size:14px;box-shadow:0 7px 14px rgba(182,74,56,.24)}
        .nav-links{display:flex;align-items:center;gap:5px;flex:1}
        .nav-links a{padding:10px 13px;border-radius:10px;color:#596570;font-weight:600;transition:var(--ease);white-space:nowrap}
        .nav-links a:hover,.nav-links a.active{color:var(--brand);background:#fff1ed}
        .nav-search{display:flex;align-items:center;border:1px solid var(--line);border-radius:12px;overflow:hidden;background:#fff}
        .nav-search input{width:140px;border:0;outline:0;padding:9px 11px;color:var(--ink)}
        .nav-search button{border:0;background:var(--brand);color:#fff;padding:9px 13px;transition:var(--ease)}
        .nav-search button:hover{background:var(--brand-dark)}
        .article-banner{position:relative;min-height:360px;display:flex;align-items:center;background:linear-gradient(90deg,rgba(24,32,39,.95),rgba(24,32,39,.72),rgba(24,32,39,.35)),url('/assets/images/backpic/back-4.jpg') center/cover}
        .article-banner .container{padding:66px 0}
        .eyebrow{display:inline-flex;align-items:center;gap:8px;color:#f1be83;font-size:13px;font-weight:700;letter-spacing:1px}
        .eyebrow:before{content:"";width:25px;height:2px;background:var(--gold)}
        .breadcrumb{margin-bottom:22px;color:#cbd3d7;font-size:13px}
        .breadcrumb a{color:#f1be83}
        .article-banner h1{max-width:880px;margin:10px 0 16px;color:#fff;font-size:clamp(30px,4.3vw,54px);line-height:1.25;letter-spacing:-1.5px}
        .banner-meta{display:flex;gap:12px;flex-wrap:wrap;color:#dce3e5;font-size:13px}
        .tag{display:inline-flex;padding:5px 11px;border-radius:30px;background:#f9ece8;color:var(--brand-dark);font-size:12px;font-weight:700}
        .banner-meta .tag{background:rgba(255,255,255,.13);color:#f5c68a}
        .section{padding:78px 0}
        .article-layout{display:grid;grid-template-columns:minmax(0,790px) 300px;gap:34px;align-items:start}
        .article-card{background:var(--paper);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow);overflow:hidden}
        .article-cover{width:100%;height:270px;object-fit:cover}
        .article-inner{padding:34px 42px 42px}
        .article-lead{font-size:18px;color:#53616b;border-left:4px solid var(--gold);padding:3px 0 3px 18px;margin:0 0 28px}
        .article-content{font-size:16px;color:#34414b}
        .article-content h2{font-size:27px;line-height:1.4;color:var(--ink);margin:36px 0 14px}
        .article-content h3{font-size:21px;margin:28px 0 10px}
        .article-content p{margin:0 0 18px}
        .article-content ul,.article-content ol{padding-left:24px;margin:12px 0 22px}
        .article-content li{margin:7px 0}
        .article-content blockquote{margin:24px 0;padding:18px 22px;background:#fff7f5;border-radius:14px;border:1px solid #f3d8d0;color:#6b443b}
        .article-content img{border-radius:15px;margin:22px auto}
        .side-stack{display:grid;gap:16px}
        .side-card{background:#fff;border:1px solid var(--line);border-radius:17px;padding:22px}
        .side-card h2{font-size:18px;margin:0 0 13px}
        .side-card p{margin:0;color:var(--muted);font-size:14px}
        .side-card ul{list-style:none;padding:0;margin:0}
        .side-card li{padding:10px 0;border-bottom:1px solid var(--line);font-size:14px}
        .side-card li:last-child{border-bottom:0}
        .side-card li a{color:#596570;transition:var(--ease)}
        .side-card li a:hover{color:var(--brand);padding-left:4px}
        .info-strip{display:grid;grid-template-columns:repeat(3,1fr);gap:14px;margin-bottom:24px}
        .info-box{padding:19px 20px;background:#fff;border:1px solid var(--line);border-radius:15px}
        .info-box span{display:block;color:var(--muted);font-size:12px;margin-bottom:3px}
        .info-box strong{font-size:16px}
        .section-head{display:flex;justify-content:space-between;align-items:end;gap:24px;margin-bottom:28px}
        .section-head h2{font-size:29px;line-height:1.35;margin:0;letter-spacing:-.6px}
        .section-head p{max-width:610px;margin:0;color:var(--muted)}
        .channel-matrix{background:var(--soft)}
        .matrix-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
        .matrix-card{position:relative;min-height:190px;border-radius:var(--radius);overflow:hidden;color:#fff;background:#333}
        .matrix-card img{width:100%;height:100%;object-fit:cover;opacity:.7;transition:var(--ease)}
        .matrix-card:hover img{transform:scale(1.06);opacity:.9}
        .matrix-card:after{content:"";position:absolute;inset:30% 0 0;background:linear-gradient(transparent,rgba(0,0,0,.82))}
        .matrix-card div{position:absolute;z-index:1;left:19px;right:16px;bottom:17px}
        .matrix-card h3{font-size:18px;margin:0 0 4px}
        .matrix-card p{font-size:12px;color:#e7e7e7;line-height:1.55;margin:0}
        .notice{display:flex;align-items:center;gap:16px;padding:22px 25px;background:#fff8ec;border:1px solid #f1dfbd;border-radius:17px}
        .notice-icon{width:38px;height:38px;flex:0 0 38px;display:grid;place-items:center;border-radius:12px;background:#f4d49f;color:#704a20;font-weight:800}
        .notice p{margin:0;color:#70583a;font-size:14px}
        .closing{padding:66px 0;background:var(--night);color:#fff}
        .closing-box{display:flex;align-items:center;justify-content:space-between;gap:30px}
        .closing h2{font-size:30px;line-height:1.35;margin:0 0 8px}
        .closing p{color:#c4cdd1;margin:0;max-width:650px}
        .btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:12px 21px;border-radius:12px;border:1px solid transparent;font-weight:700;transition:var(--ease)}
        .btn-primary{background:var(--brand);color:#fff;box-shadow:0 10px 20px rgba(182,74,56,.25)}
        .btn-primary:hover{background:#d05b45;transform:translateY(-2px)}
        .btn-ghost{border-color:rgba(255,255,255,.42);color:#fff;background:rgba(255,255,255,.08)}
        .btn-ghost:hover{background:#fff;color:var(--ink)}
        footer{background:#18222a;color:#c2ccd1;padding:57px 0 20px}
        .footer-grid{display:grid;grid-template-columns:1.45fr 1fr 1fr 1fr;gap:35px}
        footer .logo{color:#fff;margin-bottom:14px}
        footer p{font-size:13px;line-height:1.8;color:#9eabb2;max-width:270px}
        footer h3{font-size:14px;color:#fff;margin:4px 0 14px}
        footer ul{list-style:none;padding:0;margin:0}
        footer li{margin:8px 0;font-size:13px}
        footer li a{color:#aeb9be;transition:var(--ease)}
        footer li a:hover{color:#f1be83}
        .copyright{display:flex;justify-content:space-between;gap:16px;border-top:1px solid rgba(255,255,255,.1);margin-top:40px;padding-top:18px;color:#89969d;font-size:12px}
        @media(max-width:1024px){
            .nav{gap:18px}.nav-links a{padding:9px 8px}.nav-search input{width:105px}
            .article-layout{grid-template-columns:minmax(0,1fr) 260px}
            .matrix-grid{grid-template-columns:repeat(2,1fr)}
        }
        @media(max-width:768px){
            .container{width:min(100% - 30px,620px)}
            .topbar{display:none}
            .nav{min-height:66px;gap:12px;overflow-x:auto}
            .logo{font-size:18px}.logo-mark{width:31px;height:31px}
            .nav-links{order:3;flex:0 0 auto}
            .nav-search{margin-left:auto}.nav-search input{width:90px}
            .article-banner{min-height:340px}
            .article-banner .container{padding:55px 0}
            .article-layout{display:block}
            .side-stack{margin-top:22px}
            .article-inner{padding:27px 22px 31px}
            .article-cover{height:210px}
            .info-strip{grid-template-columns:1fr}
            .closing-box{display:block}.closing .btn{margin-top:24px}
            .footer-grid{grid-template-columns:repeat(2,1fr);gap:28px}
        }
        @media(max-width:520px){
            body{font-size:14px}
            .nav-search{display:none}
            .nav-links{gap:0}
            .nav-links a{font-size:13px;padding:8px 7px}
            .article-banner h1{font-size:30px}
            .article-content{font-size:15px}
            .article-content h2{font-size:23px}
            .matrix-grid{grid-template-columns:1fr}
            .matrix-card{min-height:170px}
            .section{padding:56px 0}
            .section-head{display:block}.section-head h2{font-size:25px;margin-bottom:8px}
            .footer-grid{grid-template-columns:1fr}
            .copyright{display:block}.copyright span{display:block;margin-top:5px}
        }

/* roulang page: category1 */
:root{
            --ink:#17212b;
            --muted:#66727d;
            --soft:#f4f6f8;
            --paper:#fff;
            --line:#e3e8ec;
            --brand:#b64a38;
            --brand-dark:#873324;
            --gold:#d59b58;
            --night:#202b35;
            --radius:20px;
            --shadow:0 16px 42px rgba(27,38,48,.09);
            --ease:all .25s ease
        }
        *{box-sizing:border-box}
        html{scroll-behavior:smooth}
        body{margin:0;font-family:"Noto Sans SC","Microsoft YaHei",Arial,sans-serif;color:var(--ink);background:#fbfcfd;line-height:1.75;font-size:15px}
        a{color:inherit;text-decoration:none}
        img{display:block;max-width:100%;height:auto}
        button,input{font:inherit}
        button{cursor:pointer}
        :focus-visible{outline:3px solid rgba(213,155,88,.65);outline-offset:3px}
        .container{width:min(1180px,calc(100% - 40px));margin:auto}
        .topbar{height:34px;background:var(--night);color:#c8d0d5;font-size:12px}
        .topbar .container{height:100%;display:flex;align-items:center;justify-content:space-between}
        .topbar strong{color:#f2c27b;font-weight:600}
        header{position:sticky;top:0;z-index:20;background:rgba(255,255,255,.95);backdrop-filter:blur(14px);border-bottom:1px solid var(--line)}
        .nav{min-height:74px;display:flex;align-items:center;gap:30px}
        .logo{display:flex;align-items:center;gap:10px;font-size:21px;font-weight:800;letter-spacing:-.5px;white-space:nowrap}
        .logo-mark{width:34px;height:34px;border-radius:11px;background:var(--brand);color:#fff;display:grid;place-items:center;font-size:14px;box-shadow:0 7px 14px rgba(182,74,56,.24)}
        .nav-links{display:flex;align-items:center;gap:5px;flex:1}
        .nav-links a{padding:10px 13px;border-radius:10px;color:#596570;font-weight:600;transition:var(--ease);white-space:nowrap}
        .nav-links a:hover,.nav-links a.active{color:var(--brand);background:#fff1ed}
        .nav-search{display:flex;align-items:center;border:1px solid var(--line);border-radius:12px;overflow:hidden;background:#fff}
        .nav-search input{width:140px;border:0;outline:0;padding:9px 11px;color:var(--ink)}
        .nav-search button{border:0;background:var(--brand);color:#fff;padding:9px 13px;transition:var(--ease)}
        .nav-search button:hover{background:var(--brand-dark)}
        .hero{min-height:500px;display:flex;align-items:center;position:relative;background:linear-gradient(90deg,rgba(24,32,39,.94),rgba(24,32,39,.73) 52%,rgba(24,32,39,.3)),url('/assets/images/backpic/back-2.webp') center/cover}
        .hero-content{max-width:740px;color:#fff;padding:78px 0}
        .eyebrow{display:inline-flex;align-items:center;gap:8px;color:#f1be83;font-weight:700;font-size:13px;letter-spacing:1px;margin-bottom:18px}
        .eyebrow:before{content:"";width:25px;height:2px;background:var(--gold)}
        h1{font-size:clamp(35px,5vw,60px);line-height:1.2;letter-spacing:-2px;margin:0 0 20px}
        .hero p{font-size:18px;line-height:1.9;color:#e7ecee;max-width:680px;margin:0}
        .hero-actions{display:flex;gap:12px;margin-top:30px;flex-wrap:wrap}
        .btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:12px 21px;border-radius:12px;border:1px solid transparent;font-weight:700;transition:var(--ease)}
        .btn-primary{background:var(--brand);color:#fff;box-shadow:0 10px 20px rgba(182,74,56,.25)}
        .btn-primary:hover{background:#d05b45;transform:translateY(-2px)}
        .btn-ghost{border-color:rgba(255,255,255,.42);color:#fff;background:rgba(255,255,255,.08)}
        .btn-ghost:hover{background:#fff;color:var(--ink)}
        .section{padding:78px 0}
        .section-head{display:flex;justify-content:space-between;align-items:end;gap:25px;margin-bottom:30px}
        .section-head h2{font-size:30px;line-height:1.3;letter-spacing:-.8px;margin:0}
        .section-head p{max-width:610px;color:var(--muted);margin:0}
        .crumbs{padding:18px 0;color:var(--muted);font-size:13px}
        .crumbs span{color:var(--brand);font-weight:700}
        .signal-bar{display:grid;grid-template-columns:repeat(4,1fr);gap:1px;background:var(--line);border:1px solid var(--line);border-radius:16px;overflow:hidden}
        .signal{background:#fff;padding:22px 25px}
        .signal b{display:block;font-size:25px;color:var(--brand);line-height:1.2}
        .signal span{display:block;color:var(--muted);font-size:13px;margin-top:5px}
        .topic-layout{display:grid;grid-template-columns:1fr .9fr;gap:24px;align-items:stretch}
        .topic-copy{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:34px}
        .topic-copy h3{font-size:24px;margin:0 0 12px}
        .topic-copy p{color:var(--muted);margin:0 0 20px}
        .check-list{list-style:none;padding:0;margin:0;display:grid;gap:13px}
        .check-list li{position:relative;padding-left:27px}
        .check-list li:before{content:"✓";position:absolute;left:0;top:1px;width:19px;height:19px;border-radius:50%;background:#f9ece8;color:var(--brand);font-weight:800;text-align:center;line-height:19px}
        .topic-image{border-radius:var(--radius);overflow:hidden;min-height:310px;position:relative;background:#26313a}
        .topic-image img{width:100%;height:100%;object-fit:cover;opacity:.8}
        .topic-image figcaption{position:absolute;left:24px;bottom:20px;color:#fff;font-weight:700;font-size:18px}
        .grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:17px}
        .card{background:#fff;border:1px solid var(--line);border-radius:17px;padding:24px;transition:var(--ease)}
        .card:hover{transform:translateY(-4px);box-shadow:var(--shadow);border-color:#efd2ca}
        .card .num{font-size:13px;color:var(--gold);font-weight:800;letter-spacing:1px}
        .card h3{font-size:18px;margin:10px 0 7px}
        .card p{color:var(--muted);font-size:14px;margin:0}
        .dark-section{background:var(--night);color:#fff}
        .dark-section .section-head p{color:#b9c3c9}
        .timeline{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
        .timeline-item{border-top:2px solid var(--gold);padding:20px 4px 0}
        .timeline-item strong{color:#f1be83;font-size:13px}
        .timeline-item h3{font-size:18px;margin:8px 0}
        .timeline-item p{color:#bdc7cc;margin:0;font-size:14px}
        .channel-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:22px}
        .channel-feature{border-radius:var(--radius);overflow:hidden;position:relative;min-height:270px;color:#fff}
        .channel-feature img{width:100%;height:100%;object-fit:cover;opacity:.72}
        .channel-feature:after{content:"";position:absolute;inset:25% 0 0;background:linear-gradient(transparent,rgba(0,0,0,.85))}
        .channel-feature div{position:absolute;z-index:1;left:27px;right:25px;bottom:23px}
        .channel-feature h3{font-size:25px;margin:0 0 6px}
        .channel-feature p{margin:0;color:#e5e9ea}
        .channel-list{display:grid;gap:12px}
        .channel-list a{background:#fff;border:1px solid var(--line);border-radius:15px;padding:18px 20px;display:flex;justify-content:space-between;align-items:center;transition:var(--ease)}
        .channel-list a:hover{color:var(--brand);border-color:#e6b5aa;transform:translateX(4px)}
        .channel-list small{color:var(--muted)}
        .faq-wrap{display:grid;grid-template-columns:.8fr 1.2fr;gap:35px}
        .faq-wrap h2{margin-top:0}
        .faq-list{display:grid;gap:10px}
        details{background:#fff;border:1px solid var(--line);border-radius:14px;padding:17px 20px}
        summary{cursor:pointer;font-weight:700;list-style:none;position:relative;padding-right:25px}
        summary::-webkit-details-marker{display:none}
        summary:after{content:"+";position:absolute;right:0;color:var(--brand);font-size:20px;top:-3px}
        details[open] summary:after{content:"−"}
        details p{color:var(--muted);margin:12px 0 0;font-size:14px}
        .closing{background:var(--brand-dark);color:#fff;padding:62px 0}
        .closing-inner{display:flex;justify-content:space-between;align-items:center;gap:30px}
        .closing h2{font-size:30px;line-height:1.35;margin:0 0 8px}
        .closing p{color:#f1d8d1;margin:0}
        footer{background:#182129;color:#c8d0d5;padding:58px 0 20px}
        .footer-grid{display:grid;grid-template-columns:1.35fr repeat(3,1fr);gap:35px}
        footer .logo{color:#fff}
        footer p{color:#aab6bd;max-width:290px;font-size:13px}
        footer h3{color:#fff;font-size:15px;margin:0 0 15px}
        footer ul{list-style:none;padding:0;margin:0;display:grid;gap:9px;font-size:13px}
        footer li a{color:#aab6bd;transition:var(--ease)}
        footer li a:hover{color:#f0b27b}
        .copyright{display:flex;justify-content:space-between;gap:20px;border-top:1px solid rgba(255,255,255,.12);padding-top:18px;margin-top:40px;color:#8e9aa2;font-size:12px}
        @media(max-width:1024px){.nav{gap:15px}.nav-links a{padding:9px 8px}.topic-layout,.channel-grid,.faq-wrap{grid-template-columns:1fr}.footer-grid{grid-template-columns:1.4fr repeat(3,1fr)}}
        @media(max-width:768px){.topbar{display:none}.nav{min-height:68px;overflow-x:auto}.nav-links{order:3;flex:initial}.nav-search{display:none}.nav .logo{margin-right:auto}.nav-links a{font-size:13px}.signal-bar{grid-template-columns:repeat(2,1fr)}.grid-3,.timeline{grid-template-columns:1fr}.section{padding:58px 0}.hero{min-height:490px}.hero-content{padding:65px 0}.section-head{display:block}.section-head p{margin-top:10px}.footer-grid{grid-template-columns:repeat(2,1fr)}}
        @media(max-width:520px){.container{width:min(100% - 28px,1180px)}.logo{font-size:18px}.logo-mark{width:31px;height:31px}.nav-links{gap:0}.nav-links a{padding:8px 7px;font-size:12px}.hero h1{font-size:36px;letter-spacing:-1px}.hero p{font-size:16px}.hero-actions .btn{width:100%}.signal{padding:17px}.topic-copy{padding:24px}.closing-inner{display:block}.closing .btn{margin-top:22px;width:100%}.footer-grid{grid-template-columns:1fr 1fr;gap:25px}.copyright{display:block}.copyright span{display:block;margin-top:7px}}

/* roulang page: category3 */
:root{
            --ink:#17212b;
            --muted:#66727d;
            --soft:#f4f6f8;
            --paper:#fff;
            --line:#e3e8ec;
            --brand:#b64a38;
            --brand-dark:#873324;
            --gold:#d59b58;
            --night:#202b35;
            --radius:20px;
            --shadow:0 16px 42px rgba(27,38,48,.09);
            --ease:all .25s ease;
        }
        *{box-sizing:border-box;margin:0;padding:0}
        html{scroll-behavior:smooth}
        body{font-family:"Noto Sans SC","Microsoft YaHei",Arial,sans-serif;color:var(--ink);background:#fbfcfd;line-height:1.75;font-size:15px}
        a{color:inherit;text-decoration:none}
        img{display:block;max-width:100%;height:auto}
        button,input{font:inherit}
        button{cursor:pointer}
        .container{width:min(1180px,calc(100% - 40px));margin:auto}
        .topbar{height:34px;background:var(--night);color:#c8d0d5;font-size:12px}
        .topbar .container{height:100%;display:flex;align-items:center;justify-content:space-between}
        .topbar strong{color:#f2c27b;font-weight:600}
        header{position:sticky;top:0;z-index:20;background:rgba(255,255,255,.96);backdrop-filter:blur(14px);border-bottom:1px solid var(--line)}
        .nav{min-height:74px;display:flex;align-items:center;gap:30px}
        .logo{display:flex;align-items:center;gap:10px;font-size:21px;font-weight:800;letter-spacing:-.5px;white-space:nowrap}
        .logo-mark{width:34px;height:34px;border-radius:11px;background:var(--brand);color:#fff;display:grid;place-items:center;font-size:14px;box-shadow:0 7px 14px rgba(182,74,56,.24)}
        .nav-links{display:flex;align-items:center;gap:5px;flex:1}
        .nav-links a{padding:10px 13px;border-radius:10px;color:#596570;font-weight:600;transition:var(--ease);white-space:nowrap}
        .nav-links a:hover,.nav-links a.active{color:var(--brand);background:#fff1ed}
        .nav-search{display:flex;align-items:center;border:1px solid var(--line);border-radius:12px;overflow:hidden;background:#fff}
        .nav-search input{width:140px;border:0;outline:0;padding:9px 11px;color:var(--ink)}
        .nav-search button{border:0;background:var(--brand);color:#fff;padding:9px 13px;transition:var(--ease)}
        .nav-search button:hover{background:var(--brand-dark)}
        .hero{min-height:500px;display:flex;align-items:center;position:relative;background:linear-gradient(90deg,rgba(24,32,39,.95) 0%,rgba(24,32,39,.75) 48%,rgba(24,32,39,.28) 100%),url('/assets/images/backpic/back-3.webp') center/cover}
        .hero-content{max-width:700px;color:#fff;padding:76px 0}
        .breadcrumb{font-size:13px;color:#d6dee1;margin-bottom:20px}
        .breadcrumb a{color:#f1be83}
        .eyebrow{display:inline-flex;align-items:center;gap:8px;color:#f1be83;font-weight:700;font-size:13px;letter-spacing:1px;margin-bottom:16px}
        .eyebrow:before{content:"";width:25px;height:2px;background:var(--gold)}
        h1{font-size:clamp(36px,5vw,62px);line-height:1.16;letter-spacing:-2px;margin-bottom:21px}
        .hero p{font-size:18px;line-height:1.9;color:#e7ecee;max-width:650px}
        .hero-actions{display:flex;gap:12px;margin-top:28px;flex-wrap:wrap}
        .btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:12px 21px;border-radius:12px;border:1px solid transparent;font-weight:700;transition:var(--ease)}
        .btn-primary{background:var(--brand);color:#fff;box-shadow:0 10px 20px rgba(182,74,56,.25)}
        .btn-primary:hover{background:#d05b45;transform:translateY(-2px)}
        .btn-ghost{border-color:rgba(255,255,255,.42);color:#fff;background:rgba(255,255,255,.08)}
        .btn-ghost:hover{background:#fff;color:var(--ink)}
        .section{padding:78px 0}
        .section.alt{background:var(--soft)}
        .section-head{display:flex;justify-content:space-between;align-items:end;gap:25px;margin-bottom:30px}
        .section-head h2{font-size:30px;line-height:1.3;letter-spacing:-.8px}
        .section-head p{max-width:600px;color:var(--muted)}
        .tag{display:inline-flex;padding:5px 10px;border-radius:30px;background:#f9ece8;color:var(--brand-dark);font-size:12px;font-weight:700}
        .intro-grid{display:grid;grid-template-columns:1fr 1fr;gap:28px;align-items:stretch}
        .intro-panel{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:32px;box-shadow:var(--shadow)}
        .intro-panel h2{font-size:27px;line-height:1.4;margin:13px 0}
        .intro-panel p{color:var(--muted)}
        .signal-list{display:grid;gap:13px;margin-top:22px}
        .signal-list li{list-style:none;display:flex;gap:12px;align-items:flex-start;padding-bottom:13px;border-bottom:1px solid var(--line)}
        .signal-list li:last-child{border-bottom:0}
        .signal-list b{color:var(--brand);font-size:19px}
        .scene-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
        .scene-card{background:#fff;border:1px solid var(--line);border-radius:17px;padding:25px;transition:var(--ease)}
        .scene-card:hover{transform:translateY(-5px);box-shadow:var(--shadow);border-color:#edc4ba}
        .scene-card .num{font-size:13px;color:var(--brand);font-weight:800}
        .scene-card h3{font-size:19px;margin:12px 0 7px}
        .scene-card p{font-size:14px;color:var(--muted)}
        .feature-grid{display:grid;grid-template-columns:1.08fr .92fr;gap:24px;align-items:center}
        .feature-image{border-radius:var(--radius);overflow:hidden;min-height:340px;box-shadow:var(--shadow)}
        .feature-image img{width:100%;height:100%;object-fit:cover}
        .feature-copy{padding:15px 20px}
        .feature-copy h2{font-size:31px;line-height:1.35;margin:14px 0}
        .feature-copy p{color:var(--muted);margin-bottom:19px}
        .pill-row{display:flex;gap:9px;flex-wrap:wrap}
        .pill{border:1px solid var(--line);border-radius:30px;padding:8px 13px;background:#fff;color:#596570;font-size:13px}
        .evidence{background:var(--night);color:#fff}
        .evidence .section-head p{color:#b9c3c9}
        .evidence-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:25px}
        .evidence-box{border:1px solid rgba(255,255,255,.12);background:rgba(255,255,255,.06);border-radius:var(--radius);padding:29px}
        .evidence-box h3{font-size:21px;margin-bottom:13px}
        .evidence-box p{color:#c8d0d5}
        .evidence-items{display:grid;gap:12px}
        .evidence-item{display:flex;gap:14px;align-items:flex-start;padding:16px;border-radius:14px;background:rgba(255,255,255,.07)}
        .evidence-item strong{color:#f1be83;font-size:20px}
        .evidence-item span{color:#d6dee1;font-size:14px}
        .faq-list{display:grid;gap:12px;max-width:900px}
        details{background:#fff;border:1px solid var(--line);border-radius:14px;padding:17px 21px;transition:var(--ease)}
        details:hover{border-color:#e3b0a5}
        summary{cursor:pointer;font-weight:700;padding-right:20px}
        details p{color:var(--muted);margin-top:11px;font-size:14px}
        .cta{padding:68px 0;background:linear-gradient(115deg,var(--brand-dark),var(--brand));color:#fff}
        .cta-inner{display:flex;justify-content:space-between;align-items:center;gap:25px}
        .cta h2{font-size:30px;line-height:1.35;margin-bottom:8px}
        .cta p{color:#f4dcd6}
        .cta .btn{background:#fff;color:var(--brand-dark)}
        .cta .btn:hover{background:#ffe9e3}
        footer{background:#17212b;color:#b9c3c9;padding:58px 0 22px}
        .footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:35px}
        footer .logo{color:#fff;margin-bottom:16px}
        footer p{font-size:13px;max-width:270px}
        footer h3{font-size:14px;color:#fff;margin-bottom:13px}
        footer ul{list-style:none;display:grid;gap:7px;font-size:13px}
        footer li a{transition:var(--ease)}
        footer li a:hover{color:#f1be83}
        .copyright{display:flex;justify-content:space-between;gap:15px;border-top:1px solid rgba(255,255,255,.12);margin-top:40px;padding-top:18px;font-size:12px;color:#87949c}
        a:focus-visible,button:focus-visible,input:focus-visible,summary:focus-visible{outline:3px solid rgba(213,155,88,.55);outline-offset:3px}
        @media(max-width:1024px){
            .nav{gap:17px}.nav-links{gap:0}.nav-links a{padding:9px 8px;font-size:14px}
            .intro-grid,.feature-grid,.evidence-grid{grid-template-columns:1fr}
            .feature-image{min-height:280px}
        }
        @media(max-width:768px){
            .container{width:min(100% - 28px,620px)}
            .topbar{display:none}
            .nav{min-height:66px;gap:12px;overflow-x:auto}
            .logo{font-size:18px}.logo-mark{width:30px;height:30px;border-radius:9px}
            .nav-links{order:3;flex-basis:100%;display:none}
            .nav-search{margin-left:auto}.nav-search input{width:105px}
            header .nav{flex-wrap:wrap;padding:10px 0}
            .hero{min-height:520px}
            .hero-content{padding:62px 0}
            .hero p{font-size:16px}
            .section{padding:58px 0}
            .section-head{display:block}.section-head h2{font-size:26px;margin-bottom:9px}
            .scene-grid{grid-template-columns:1fr}
            .intro-panel,.evidence-box{padding:24px}
            .cta-inner{display:block}.cta .btn{margin-top:22px}
            .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
        }
        @media(max-width:520px){
            h1{font-size:37px;letter-spacing:-1px}
            .hero-actions,.hero-actions .btn{width:100%}
            .hero-actions .btn{padding:13px}
            .feature-copy{padding:0}
            .footer-grid{grid-template-columns:1fr}
            .copyright{display:block}.copyright span{display:block;margin-top:5px}
        }

/* roulang page: category2 */
:root{
            --ink:#17212b;
            --muted:#66727d;
            --soft:#f4f6f8;
            --paper:#ffffff;
            --line:#e3e8ec;
            --brand:#b64a38;
            --brand-dark:#873324;
            --gold:#d59b58;
            --night:#202b35;
            --radius:20px;
            --shadow:0 16px 42px rgba(27,38,48,.09);
            --ease:all .25s ease;
        }
        *{box-sizing:border-box;margin:0;padding:0}
        html{scroll-behavior:smooth}
        body{font-family:"Noto Sans SC","Microsoft YaHei",Arial,sans-serif;color:var(--ink);background:#fbfcfd;line-height:1.75;font-size:15px}
        a{color:inherit;text-decoration:none}
        img{display:block;max-width:100%;height:auto}
        button,input{font:inherit}
        button{cursor:pointer}
        .container{width:min(1180px,calc(100% - 40px));margin:auto}
        .topbar{height:34px;background:var(--night);color:#c8d0d5;font-size:12px}
        .topbar .container{height:100%;display:flex;align-items:center;justify-content:space-between}
        .topbar strong{color:#f2c27b;font-weight:600}
        header{position:sticky;top:0;z-index:20;background:rgba(255,255,255,.95);backdrop-filter:blur(14px);border-bottom:1px solid var(--line)}
        .nav{min-height:74px;display:flex;align-items:center;gap:30px}
        .logo{display:flex;align-items:center;gap:10px;font-size:21px;font-weight:800;letter-spacing:0;white-space:nowrap}
        .logo-mark{width:34px;height:34px;border-radius:11px;background:var(--brand);color:#fff;display:grid;place-items:center;font-size:14px;box-shadow:0 7px 14px rgba(182,74,56,.24)}
        .nav-links{display:flex;align-items:center;gap:5px;flex:1}
        .nav-links a{padding:10px 13px;border-radius:10px;color:#596570;font-weight:600;transition:var(--ease);white-space:nowrap}
        .nav-links a:hover,.nav-links a.active{color:var(--brand);background:#fff1ed}
        .nav-search{display:flex;align-items:center;border:1px solid var(--line);border-radius:12px;overflow:hidden;background:#fff}
        .nav-search input{width:140px;border:0;outline:0;padding:9px 11px;color:var(--ink)}
        .nav-search button{border:0;background:var(--brand);color:#fff;padding:9px 13px;transition:var(--ease)}
        .nav-search button:hover{background:var(--brand-dark)}
        .hero{min-height:500px;display:flex;align-items:center;position:relative;background:linear-gradient(90deg,rgba(24,32,39,.94) 0%,rgba(24,32,39,.72) 51%,rgba(24,32,39,.3) 100%),url('/assets/images/backpic/back-2.webp') center/cover}
        .hero-content{max-width:720px;color:#fff;padding:76px 0}
        .eyebrow{display:inline-flex;align-items:center;gap:8px;color:#f1be83;font-weight:700;font-size:13px;letter-spacing:1px;margin-bottom:18px}
        .eyebrow:before{content:"";width:25px;height:2px;background:var(--gold)}
        h1{font-size:clamp(42px,5vw,68px);line-height:1.16;letter-spacing:0;margin-bottom:22px}
        .hero p{font-size:18px;line-height:1.9;color:#e7ecee;max-width:670px}
        .hero-actions{display:flex;gap:12px;margin-top:30px;flex-wrap:wrap}
        .btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:12px 21px;border-radius:12px;border:1px solid transparent;font-weight:700;transition:var(--ease)}
        .btn-primary{background:var(--brand);color:#fff;box-shadow:0 10px 20px rgba(182,74,56,.25)}
        .btn-primary:hover{background:#d05b45;transform:translateY(-2px)}
        .btn-ghost{border-color:rgba(255,255,255,.42);color:#fff;background:rgba(255,255,255,.08)}
        .btn-ghost:hover{background:#fff;color:var(--ink)}
        .section{padding:82px 0}
        .section.alt{background:var(--soft)}
        .section-head{display:flex;justify-content:space-between;align-items:end;gap:25px;margin-bottom:30px}
        .section-head h2{font-size:30px;line-height:1.3;letter-spacing:0}
        .section-head p{max-width:600px;color:var(--muted)}
        .crumbs{padding:22px 0 0;color:var(--muted);font-size:13px}
        .crumbs span{color:var(--brand);font-weight:700}
        .intro-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:42px;align-items:center}
        .intro-copy h2{font-size:32px;line-height:1.35;margin-bottom:18px}
        .intro-copy p{color:var(--muted);margin-bottom:18px}
        .image-panel{border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow);position:relative}
        .image-panel img{width:100%;height:340px;object-fit:cover}
        .image-panel figcaption{position:absolute;left:20px;bottom:18px;color:#fff;font-weight:700;text-shadow:0 2px 8px #000}
        .topic-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
        .topic-card{background:var(--paper);border:1px solid var(--line);border-radius:16px;padding:24px;min-height:180px;transition:var(--ease)}
        .topic-card:hover{transform:translateY(-4px);box-shadow:var(--shadow);border-color:#edc3b8}
        .topic-no{font-size:13px;color:var(--brand);font-weight:800}
        .topic-card h3{font-size:18px;margin:18px 0 8px}
        .topic-card p{font-size:13px;color:var(--muted);line-height:1.7}
        .split-section{display:grid;grid-template-columns:.78fr 1.22fr;gap:50px;align-items:start}
        .dark-panel{background:var(--night);color:#fff;border-radius:var(--radius);padding:34px;position:sticky;top:125px}
        .dark-panel h2{font-size:28px;line-height:1.4;margin:12px 0}
        .dark-panel p{color:#c4cdd2}
        .signal-list{display:grid;gap:14px}
        .signal-item{display:grid;grid-template-columns:48px 1fr;gap:18px;padding:21px 0;border-bottom:1px solid var(--line)}
        .signal-item:last-child{border-bottom:0}
        .signal-icon{width:42px;height:42px;border-radius:13px;background:#fff1ed;color:var(--brand);display:grid;place-items:center;font-weight:800}
        .signal-item h3{font-size:18px;margin-bottom:4px}
        .signal-item p{color:var(--muted);font-size:14px}
        .case-layout{display:grid;grid-template-columns:1.25fr .75fr;gap:22px}
        .case-main{border-radius:var(--radius);overflow:hidden;min-height:330px;position:relative;color:#fff;background:#303942}
        .case-main img{width:100%;height:100%;object-fit:cover;opacity:.72}
        .case-main div{position:absolute;left:28px;right:28px;bottom:26px}
        .case-main h3{font-size:27px;line-height:1.35;margin:8px 0}
        .case-main p{color:#e5e9ea}
        .case-side{display:grid;gap:15px}
        .small-feature{background:#fff;border:1px solid var(--line);border-radius:16px;padding:22px}
        .small-feature h3{font-size:17px;margin-bottom:7px}
        .small-feature p{font-size:13px;color:var(--muted)}
        .timeline{border-left:2px solid #e8c1b8;margin:8px 0 0 13px;padding-left:30px;display:grid;gap:26px}
        .timeline-item{position:relative}
        .timeline-item:before{content:"";position:absolute;left:-39px;top:8px;width:14px;height:14px;background:var(--brand);border:4px solid #fff1ed;border-radius:50%}
        .timeline-item strong{color:var(--brand);font-size:13px}
        .timeline-item h3{font-size:18px;margin:4px 0}
        .timeline-item p{color:var(--muted);font-size:14px}
        .faq-grid{display:grid;grid-template-columns:1fr 1fr;gap:14px}
        details{background:#fff;border:1px solid var(--line);border-radius:14px;padding:18px 21px}
        summary{font-weight:700;cursor:pointer;list-style:none;padding-right:22px;position:relative}
        summary::-webkit-details-marker{display:none}
        summary:after{content:"+";position:absolute;right:0;color:var(--brand);font-size:22px;top:-4px}
        details[open] summary:after{content:"−"}
        details p{color:var(--muted);font-size:14px;margin-top:12px;padding-top:12px;border-top:1px solid var(--line)}
        .cta{background:var(--brand);color:#fff;padding:54px 0}
        .cta-inner{display:flex;align-items:center;justify-content:space-between;gap:25px}
        .cta h2{font-size:30px;line-height:1.35;margin-bottom:7px}
        .cta p{color:#f8ddd7}
        footer{background:#182129;color:#bdc7cc;padding:58px 0 22px}
        .footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:36px}
        footer .logo{color:#fff;margin-bottom:15px}
        footer p{font-size:13px;max-width:270px}
        footer h3{color:#fff;font-size:15px;margin-bottom:13px}
        footer ul{list-style:none;display:grid;gap:8px;font-size:13px}
        footer li a{transition:var(--ease)}
        footer li a:hover{color:#f1be83}
        .copyright{border-top:1px solid rgba(255,255,255,.12);margin-top:42px;padding-top:18px;display:flex;justify-content:space-between;gap:15px;font-size:12px;color:#8f9ba1}
        a:focus-visible,button:focus-visible,input:focus-visible,summary:focus-visible{outline:3px solid rgba(213,155,88,.55);outline-offset:3px}
        @media(max-width:1024px){
            .nav{gap:16px}.nav-links a{padding:9px 8px}.nav-search input{width:110px}
            .topic-grid{grid-template-columns:repeat(2,1fr)}
        }
        @media(max-width:768px){
            .container{width:min(100% - 30px,620px)}
            .topbar .container span:last-child{display:none}
            .nav{min-height:66px;flex-wrap:wrap;padding:10px 0;gap:10px}
            .nav-links{order:3;overflow-x:auto;width:100%;flex-basis:100%;padding-bottom:3px}
            .nav-links a{font-size:13px;padding:7px 11px}
            .nav-search{margin-left:auto}.nav-search input{width:110px}
            .hero{min-height:470px}.hero-content{padding:62px 0}
            h1{font-size:43px}.hero p{font-size:16px}
            .section{padding:60px 0}.section-head{display:block}.section-head p{margin-top:10px}
            .intro-grid,.split-section,.case-layout{grid-template-columns:1fr;gap:28px}
            .dark-panel{position:static}.image-panel img{height:280px}
            .faq-grid{grid-template-columns:1fr}
            .cta-inner{display:block}.cta .btn{margin-top:22px}
            .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
        }
        @media(max-width:520px){
            .topic-grid{grid-template-columns:1fr}
            .nav-search{display:none}
            h1{font-size:38px}
            .hero-actions .btn{width:100%}
            .footer-grid{grid-template-columns:1fr}
            .copyright{display:block}.copyright span{display:block;margin-top:5px}
        }

/* roulang page: category4 */
:root{
            --ink:#17212b;
            --muted:#66727d;
            --soft:#f4f6f8;
            --paper:#ffffff;
            --line:#e3e8ec;
            --brand:#b64a38;
            --brand-dark:#873324;
            --gold:#d59b58;
            --night:#202b35;
            --radius:20px;
            --shadow:0 16px 42px rgba(27,38,48,.09);
            --ease:all .25s ease;
        }
        *{box-sizing:border-box;margin:0;padding:0}
        html{scroll-behavior:smooth}
        body{font-family:"Noto Sans SC","Microsoft YaHei",Arial,sans-serif;color:var(--ink);background:#fbfcfd;line-height:1.75;font-size:15px}
        a{color:inherit;text-decoration:none}
        img{display:block;max-width:100%;height:auto}
        button,input{font:inherit}
        button{cursor:pointer}
        .container{width:min(1180px,calc(100% - 40px));margin:auto}
        .topbar{height:34px;background:var(--night);color:#c8d0d5;font-size:12px}
        .topbar .container{height:100%;display:flex;align-items:center;justify-content:space-between}
        .topbar strong{color:#f2c27b;font-weight:600}
        header{position:sticky;top:0;z-index:20;background:rgba(255,255,255,.95);backdrop-filter:blur(14px);border-bottom:1px solid var(--line)}
        .nav{min-height:74px;display:flex;align-items:center;gap:30px}
        .logo{display:flex;align-items:center;gap:10px;font-size:21px;font-weight:800;letter-spacing:-.5px;white-space:nowrap}
        .logo-mark{width:34px;height:34px;border-radius:11px;background:var(--brand);color:#fff;display:grid;place-items:center;font-size:14px;box-shadow:0 7px 14px rgba(182,74,56,.24)}
        .nav-links{display:flex;align-items:center;gap:5px;flex:1}
        .nav-links a{padding:10px 13px;border-radius:10px;color:#596570;font-weight:600;transition:var(--ease);white-space:nowrap}
        .nav-links a:hover,.nav-links a.active{color:var(--brand);background:#fff1ed}
        .nav-search{display:flex;align-items:center;border:1px solid var(--line);border-radius:12px;overflow:hidden;background:#fff}
        .nav-search input{width:140px;border:0;outline:0;padding:9px 11px;color:var(--ink)}
        .nav-search button{border:0;background:var(--brand);color:#fff;padding:9px 13px;transition:var(--ease)}
        .nav-search button:hover{background:var(--brand-dark)}
        .hero{min-height:520px;display:flex;align-items:center;position:relative;background:linear-gradient(90deg,rgba(24,32,39,.95) 0%,rgba(24,32,39,.78) 52%,rgba(24,32,39,.25) 100%),url('/assets/images/backpic/back-4.jpg') center/cover}
        .hero-content{max-width:760px;color:#fff;padding:78px 0}
        .breadcrumb{font-size:13px;color:#d5dcdf;margin-bottom:24px}
        .breadcrumb a{color:#f1be83}
        .eyebrow{display:inline-flex;align-items:center;gap:8px;color:#f1be83;font-weight:700;font-size:13px;letter-spacing:1px;margin-bottom:18px}
        .eyebrow:before{content:"";width:25px;height:2px;background:var(--gold)}
        h1{font-size:clamp(34px,5vw,58px);line-height:1.2;letter-spacing:-1.8px;margin-bottom:20px}
        .hero p{font-size:18px;line-height:1.9;color:#e7ecee;max-width:700px}
        .hero-actions{display:flex;gap:12px;margin-top:30px;flex-wrap:wrap}
        .btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:12px 21px;border-radius:12px;border:1px solid transparent;font-weight:700;transition:var(--ease)}
        .btn-primary{background:var(--brand);color:#fff;box-shadow:0 10px 20px rgba(182,74,56,.25)}
        .btn-primary:hover{background:#d05b45;transform:translateY(-2px)}
        .btn-ghost{border-color:rgba(255,255,255,.42);color:#fff;background:rgba(255,255,255,.08)}
        .btn-ghost:hover{background:#fff;color:var(--ink)}
        .section{padding:82px 0}
        .section-head{display:flex;justify-content:space-between;align-items:end;gap:25px;margin-bottom:30px}
        .section-head h2{font-size:30px;line-height:1.3;letter-spacing:-.8px}
        .section-head p{max-width:610px;color:var(--muted)}
        .kicker{color:var(--brand);font-size:12px;font-weight:800;letter-spacing:1.5px;text-transform:uppercase;margin-bottom:8px}
        .signal-bar{background:#fff;border-bottom:1px solid var(--line);box-shadow:0 8px 24px rgba(27,38,48,.04)}
        .signal-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:0}
        .signal{padding:25px 24px;border-right:1px solid var(--line)}
        .signal:last-child{border-right:0}
        .signal strong{display:block;font-size:23px;color:var(--brand-dark);line-height:1.3}
        .signal span{font-size:13px;color:var(--muted)}
        .evidence-grid{display:grid;grid-template-columns:1fr 1.1fr;gap:46px;align-items:center}
        .evidence-photo{border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow);min-height:360px}
        .evidence-photo img{width:100%;height:100%;object-fit:cover}
        .evidence-copy h2{font-size:32px;line-height:1.35;margin-bottom:16px}
        .evidence-copy>p{color:var(--muted);margin-bottom:22px}
        .check-list{display:grid;gap:14px}
        .check-list li{list-style:none;display:flex;gap:13px;align-items:flex-start;padding:14px 16px;background:#fff;border:1px solid var(--line);border-radius:14px}
        .check-list b{width:25px;height:25px;flex:0 0 25px;border-radius:50%;display:grid;place-items:center;color:#fff;background:var(--brand);font-size:13px}
        .check-list strong{display:block;font-size:15px}
        .check-list span{display:block;color:var(--muted);font-size:13px;margin-top:2px}
        .topic-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
        .topic-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:25px;transition:var(--ease)}
        .topic-card:hover{transform:translateY(-5px);box-shadow:var(--shadow);border-color:#e0b4a9}
        .topic-card .icon{width:42px;height:42px;border-radius:13px;background:#fff0eb;color:var(--brand);display:grid;place-items:center;font-size:20px;margin-bottom:19px}
        .topic-card h3{font-size:19px;margin-bottom:8px}
        .topic-card p{color:var(--muted);font-size:14px}
        .dark-panel{background:var(--night);color:#fff;border-radius:28px;padding:54px}
        .dark-panel .section-head p{color:#b9c3c9}
        .timeline{display:grid;grid-template-columns:repeat(4,1fr);gap:15px}
        .timeline-item{position:relative;border-top:2px solid var(--gold);padding:19px 4px 0}
        .timeline-item:before{content:"";position:absolute;top:-7px;left:0;width:11px;height:11px;border-radius:50%;background:var(--gold);box-shadow:0 0 0 5px rgba(213,155,88,.14)}
        .timeline-item strong{display:block;color:#f1be83;font-size:14px;margin-bottom:8px}
        .timeline-item h3{font-size:17px;margin-bottom:7px}
        .timeline-item p{font-size:13px;color:#b9c3c9}
        .feature-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:22px}
        .feature-main{min-height:330px;border-radius:var(--radius);overflow:hidden;position:relative;color:#fff;background:#252f38}
        .feature-main img{width:100%;height:100%;object-fit:cover;opacity:.66;transition:var(--ease)}
        .feature-main:hover img{transform:scale(1.04);opacity:.8}
        .feature-main div{position:absolute;left:28px;right:28px;bottom:25px}
        .feature-main h3{font-size:27px;line-height:1.35;margin:8px 0}
        .feature-main p{color:#e5e9ea}
        .feature-side{display:grid;gap:14px}
        .mini-card{background:#fff;border:1px solid var(--line);border-radius:16px;padding:20px;transition:var(--ease)}
        .mini-card:hover{box-shadow:var(--shadow);transform:translateY(-3px)}
        .mini-card h3{font-size:17px;margin:8px 0 4px}
        .mini-card p{font-size:13px;color:var(--muted)}
        .faq-grid{display:grid;grid-template-columns:1fr 1fr;gap:14px}
        details{background:#fff;border:1px solid var(--line);border-radius:15px;padding:18px 20px;transition:var(--ease)}
        details:hover{border-color:#ddb0a5}
        summary{cursor:pointer;font-weight:700;padding-right:20px;position:relative}
        details p{color:var(--muted);font-size:14px;padding-top:12px}
        .closing{background:linear-gradient(120deg,var(--brand-dark),var(--brand));color:#fff}
        .closing-inner{display:flex;justify-content:space-between;align-items:center;gap:30px}
        .closing h2{font-size:32px;line-height:1.35;margin-bottom:10px}
        .closing p{color:#f7dfd9;max-width:650px}
        footer{background:#182129;color:#c4cdd2;padding:58px 0 20px}
        .footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:35px}
        footer .logo{color:#fff;margin-bottom:14px}
        footer p{font-size:13px;max-width:260px;color:#9eabb2}
        footer h3{font-size:15px;color:#fff;margin-bottom:14px}
        footer ul{list-style:none;display:grid;gap:8px}
        footer li a{font-size:13px;color:#9eabb2;transition:var(--ease)}
        footer li a:hover{color:#f1be83}
        .copyright{display:flex;justify-content:space-between;gap:15px;border-top:1px solid rgba(255,255,255,.1);margin-top:42px;padding-top:18px;font-size:12px;color:#86939b}
        :focus-visible{outline:3px solid rgba(213,155,88,.55);outline-offset:3px}
        @media(max-width:1024px){
            .nav{gap:15px}.nav-links a{padding:9px 8px;font-size:14px}.nav-search input{width:105px}
            .evidence-grid{gap:28px}.dark-panel{padding:38px}
        }
        @media(max-width:768px){
            .container{width:min(100% - 30px,620px)}
            .topbar{display:none}.nav{min-height:66px;flex-wrap:wrap;padding:10px 0}
            .nav-links{order:3;flex-basis:100%;overflow-x:auto;padding-bottom:3px}
            .nav-links a{font-size:13px;padding:7px 10px}
            .nav-search{margin-left:auto}.nav-search input{width:90px}
            .hero{min-height:560px}.hero-content{padding:65px 0}.hero p{font-size:16px}
            .section{padding:58px 0}.section-head{display:block}.section-head h2{font-size:26px;margin-bottom:10px}
            .signal-grid{grid-template-columns:repeat(2,1fr)}.signal{border-bottom:1px solid var(--line)}.signal:nth-child(2){border-right:0}
            .evidence-grid,.feature-grid{grid-template-columns:1fr}.evidence-photo{min-height:260px}
            .topic-grid{grid-template-columns:1fr 1fr}.timeline{grid-template-columns:1fr 1fr;gap:25px}
            .faq-grid{grid-template-columns:1fr}.closing-inner{display:block}.closing .btn{margin-top:24px}
            .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
        }
        @media(max-width:520px){
            h1{font-size:35px}.nav-search{display:none}.nav-links{gap:2px}
            .signal{padding:19px 12px}.signal strong{font-size:19px}
            .topic-grid,.timeline{grid-template-columns:1fr}.dark-panel{padding:27px 20px;border-radius:20px}
            .feature-main{min-height:280px}.feature-main h3{font-size:22px}
            .footer-grid{grid-template-columns:1fr}.copyright{display:block}.copyright span{display:block;margin-top:5px}
        }