/* roulang page: index */
:root{
            --ink:#101315;
            --night:#171b1d;
            --panel:#202628;
            --panel-2:#282f30;
            --line:#394243;
            --text:#f3f1e9;
            --muted:#aab2ae;
            --soft:#d5d9d0;
            --mint:#b8f36b;
            --mint-deep:#8fca43;
            --orange:#f3a15f;
            --red:#db715d;
            --radius:14px;
            --shadow:0 18px 42px rgba(0,0,0,.22);
            --container:1200px;
        }
        *,*:before,*:after{box-sizing:border-box}
        html{scroll-behavior:smooth}
        body{
            margin:0;
            background:var(--ink);
            color:var(--text);
            font-family:"Noto Sans SC","Microsoft YaHei","PingFang SC",Arial,sans-serif;
            font-size:16px;
            line-height:1.7;
            -webkit-font-smoothing:antialiased;
        }
        a{color:inherit;text-decoration:none}
        button,input{font:inherit}
        button{cursor:pointer}
        img{display:block;max-width:100%}
        ::selection{background:var(--mint);color:var(--ink)}
        .container{width:min(var(--container),calc(100% - 48px));margin:0 auto}
        .notice{
            min-height:36px;
            display:flex;
            align-items:center;
            background:#0c0f10;
            border-bottom:1px solid #292e2e;
            color:var(--muted);
            font-size:13px;
        }
        .notice-inner{display:flex;justify-content:space-between;gap:24px;align-items:center}
        .notice strong{color:var(--mint);font-weight:700}
        .notice-link{color:var(--soft);transition:color .2s}
        .notice-link:hover{color:var(--mint)}
        .site-header{
            position:sticky;top:0;z-index:20;
            background:rgba(16,19,21,.96);
            border-bottom:1px solid var(--line);
            backdrop-filter:blur(12px);
        }
        .nav-wrap{height:76px;display:flex;align-items:center;justify-content:space-between;gap:28px}
        .brand{display:inline-flex;align-items:center;gap:11px;min-width:max-content}
        .brand-mark{
            width:34px;height:34px;border:2px solid var(--mint);border-radius:50%;
            position:relative;display:grid;place-items:center;color:var(--mint);font-size:13px;font-weight:800;
        }
        .brand-mark:after{content:"";position:absolute;width:46px;height:15px;border-top:1px solid var(--orange);border-radius:50%;transform:rotate(-28deg)}
        .brand-cn{font-size:19px;font-weight:800;letter-spacing:0}
        .brand-en{display:block;color:var(--muted);font-size:9px;line-height:1.1;letter-spacing:1.3px;margin-top:2px}
        .main-nav{display:flex;align-items:center;gap:5px}
        .main-nav a{
            color:var(--muted);font-size:14px;padding:10px 13px;border-radius:8px;
            transition:background .2s,color .2s,transform .2s;
        }
        .main-nav a:hover,.main-nav a.active{color:var(--text);background:#29302f}
        .main-nav a.active{box-shadow:inset 0 -2px var(--mint)}
        .menu-toggle{display:none;background:transparent;border:1px solid var(--line);color:var(--text);width:44px;height:42px;border-radius:8px}
        .hero{
            min-height:650px;position:relative;overflow:hidden;
            background:#171b1d;
            border-bottom:1px solid var(--line);
        }
        .hero:before{
            content:"";position:absolute;inset:0;opacity:.46;
            background:
                linear-gradient(90deg,rgba(16,19,21,.94) 0%,rgba(16,19,21,.72) 46%,rgba(16,19,21,.22) 100%),
                repeating-linear-gradient(78deg,transparent 0 84px,rgba(184,243,107,.08) 85px,transparent 86px 170px);
        }
        .hero:after{
            content:"";position:absolute;width:720px;height:720px;right:-190px;top:-135px;border:1px solid rgba(184,243,107,.19);border-radius:50%;box-shadow:0 0 0 48px rgba(184,243,107,.035),0 0 0 96px rgba(184,243,107,.025);
        }
        .hero-inner{position:relative;z-index:1;display:grid;grid-template-columns:1.05fr .95fr;align-items:center;gap:70px;min-height:650px;padding:74px 0 84px}
        .eyebrow,.section-kicker{display:flex;align-items:center;gap:10px;color:var(--mint);font-size:12px;font-weight:700;letter-spacing:1.8px;text-transform:uppercase}
        .eyebrow:before,.section-kicker:before{content:"";width:28px;height:2px;background:var(--orange)}
        h1,h2,h3,p{margin-top:0}
        h1{font-size:clamp(38px,5vw,66px);line-height:1.16;letter-spacing:0;font-weight:850;margin:22px 0 24px;max-width:720px}
        .hero-copy{max-width:620px;color:var(--soft);font-size:18px;line-height:1.9}
        .hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:34px}
        .btn{min-height:48px;display:inline-flex;align-items:center;justify-content:center;gap:10px;padding:0 20px;border:1px solid transparent;border-radius:9px;font-weight:750;font-size:14px;transition:transform .2s,background .2s,border-color .2s,box-shadow .2s}
        .btn:hover{transform:translateY(-2px)}
        .btn:focus-visible,.main-nav a:focus-visible,.faq-question:focus-visible,.notice-link:focus-visible{outline:3px solid var(--orange);outline-offset:3px}
        .btn-primary{background:var(--mint);color:var(--ink);box-shadow:0 8px 20px rgba(184,243,107,.12)}
        .btn-primary:hover{background:#ccff86;box-shadow:0 12px 28px rgba(184,243,107,.2)}
        .btn-secondary{background:#202627;border-color:#56605e;color:var(--text)}
        .btn-secondary:hover{border-color:var(--mint);background:#293130}
        .hero-visual{position:relative;min-height:390px;display:flex;align-items:center;justify-content:center}
        .orbit{width:min(390px,75vw);aspect-ratio:1;border:1px solid rgba(184,243,107,.3);border-radius:50%;position:relative}
        .orbit:before,.orbit:after{content:"";position:absolute;inset:12%;border:1px solid rgba(243,161,95,.28);border-radius:50%;transform:rotate(42deg)}
        .orbit:after{inset:25%;border-color:rgba(184,243,107,.22);transform:rotate(-33deg)}
        .orbit-core{position:absolute;inset:35%;border:1px solid var(--mint);display:grid;place-items:center;border-radius:50%;background:#242c2b;color:var(--mint);font-size:42px;font-weight:850;box-shadow:0 0 0 12px rgba(184,243,107,.05)}
        .visual-label{position:absolute;padding:13px 16px;background:#202627;border:1px solid var(--line);border-radius:10px;box-shadow:var(--shadow);font-size:13px}
        .visual-label strong{display:block;font-size:20px;color:var(--text);line-height:1.2}
        .visual-label small{color:var(--muted)}
        .label-a{top:21px;right:2px}.label-b{bottom:45px;left:0}.label-c{bottom:0;right:54px}
        .quick-nav{background:#202627;border-bottom:1px solid var(--line)}
        .quick-grid{display:grid;grid-template-columns:repeat(5,1fr)}
        .quick-item{padding:24px 18px;border-right:1px solid var(--line);transition:background .2s}
        .quick-item:first-child{border-left:1px solid var(--line)}
        .quick-item:hover{background:#293130}
        .quick-number{color:var(--orange);font-weight:800;font-size:12px}
        .quick-item strong{display:block;margin-top:7px;font-size:16px}
        .quick-item span{display:block;color:var(--muted);font-size:13px;margin-top:2px}
        .section{padding:94px 0}
        .section-head{display:flex;align-items:end;justify-content:space-between;gap:30px;margin-bottom:34px}
        .section-title{font-size:34px;line-height:1.25;margin:12px 0 0;font-weight:800}
        .section-desc{max-width:520px;color:var(--muted);margin:0}
        .text-link{color:var(--mint);font-size:14px;font-weight:750;white-space:nowrap}
        .text-link:hover{text-decoration:underline;text-underline-offset:5px}
        .news-layout{display:grid;grid-template-columns:1.02fr 1.4fr;gap:20px}
        .feature-news,.news-list{border:1px solid var(--line);background:var(--panel);border-radius:var(--radius)}
        .feature-news{padding:31px;min-height:330px;display:flex;flex-direction:column;justify-content:space-between;position:relative;overflow:hidden}
        .feature-news:after{content:"01";position:absolute;right:20px;bottom:-18px;color:#303938;font-size:130px;font-weight:900;line-height:1}
        .tag{display:inline-flex;align-items:center;width:max-content;padding:4px 9px;border-radius:5px;background:rgba(184,243,107,.12);color:var(--mint);font-size:12px;font-weight:750}
        .tag.orange{background:rgba(243,161,95,.13);color:var(--orange)}
        .feature-news h3{font-size:26px;line-height:1.4;max-width:500px;margin:22px 0 12px;position:relative;z-index:1}
        .feature-news p{color:var(--muted);position:relative;z-index:1}
        .news-meta{display:flex;gap:16px;color:var(--muted);font-size:12px;position:relative;z-index:1}
        .news-list{padding:8px 25px}
        .news-row{display:grid;grid-template-columns:90px 1fr auto;align-items:center;gap:18px;padding:20px 0;border-bottom:1px solid var(--line)}
        .news-row:last-child{border-bottom:0}
        .news-date{font-size:12px;color:var(--orange)}
        .news-row h3{font-size:16px;margin:0 0 4px;line-height:1.45}
        .news-row p{color:var(--muted);font-size:13px;margin:0;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
        .row-arrow{color:var(--mint);font-size:22px;transition:transform .2s}
        .news-row:hover .row-arrow{transform:translateX(4px)}
        .empty-state{padding:45px 20px;text-align:center;color:var(--muted)}
        .empty-state i{display:block;width:38px;height:38px;border:1px solid var(--orange);border-radius:50%;margin:0 auto 14px}
        .app-section{background:#202627;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
        .app-grid{display:grid;grid-template-columns:.9fr 1.1fr;gap:90px;align-items:center}
        .device-stage{min-height:420px;position:relative;display:grid;place-items:center}
        .device-shadow{position:absolute;width:300px;height:24px;border-radius:50%;background:#0e1112;bottom:27px;filter:blur(8px)}
        .device{width:215px;height:390px;border:7px solid #0b0d0e;border-radius:28px;background:#151a1b;box-shadow:0 0 0 1px #68716e,24px 24px 0 -7px #303736;position:relative;padding:42px 14px 15px}
        .device:before{content:"";position:absolute;top:12px;left:50%;transform:translateX(-50%);width:65px;height:6px;border-radius:5px;background:#303837}
        .device-top{font-size:11px;color:var(--mint);letter-spacing:1px}
        .device-score{margin-top:22px;padding:18px 12px;background:#252d2c;border-left:3px solid var(--orange)}
        .device-score small{color:var(--muted);font-size:10px}.device-score strong{display:block;font-size:27px;margin-top:4px}
        .device-line{height:7px;background:#303938;margin-top:16px;border-radius:4px}.device-line.short{width:64%}.device-line.green{background:var(--mint);width:82%}
        .app-copy h2{font-size:37px;line-height:1.3;margin:14px 0 18px}
        .app-copy p{color:var(--muted);max-width:580px}
        .download-box{display:flex;gap:15px;align-items:center;margin-top:28px}
        .qr-placeholder{width:88px;height:88px;border:1px dashed #77827b;display:grid;place-items:center;color:var(--muted);font-size:11px;text-align:center;line-height:1.4}
        .download-note{color:var(--muted);font-size:12px;margin-top:16px}
        .insight-grid{display:grid;grid-template-columns:1.2fr .8fr;gap:20px}
        .insight-panel{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);padding:30px}
        .insight-panel h3{font-size:21px;margin-bottom:22px}
        .metric-list{display:grid;grid-template-columns:repeat(3,1fr);gap:12px}
        .metric{padding:18px 15px;background:#292f30;border-left:3px solid var(--mint)}
        .metric strong{display:block;color:var(--mint);font-size:29px;line-height:1.2}.metric span{color:var(--muted);font-size:12px}
        .topic-list{display:flex;flex-wrap:wrap;gap:10px}.topic-list a{padding:10px 13px;border:1px solid var(--line);border-radius:8px;color:var(--soft);font-size:13px;transition:.2s}.topic-list a:hover{border-color:var(--mint);color:var(--mint)}
        .faq-grid{display:grid;grid-template-columns:.75fr 1.25fr;gap:80px}
        .faq-intro p{color:var(--muted);max-width:330px}
        .faq-list{border-top:1px solid var(--line)}
        .faq-item{border-bottom:1px solid var(--line)}
        .faq-question{width:100%;display:flex;justify-content:space-between;align-items:center;gap:20px;text-align:left;padding:22px 0;background:none;border:0;color:var(--text);font-weight:700}
        .faq-question span:last-child{color:var(--mint);font-size:22px;line-height:1;transition:transform .2s}
        .faq-answer{display:none;color:var(--muted);font-size:14px;padding:0 35px 22px 0}
        .faq-item.open .faq-answer{display:block}.faq-item.open .faq-question span:last-child{transform:rotate(45deg)}
        .cta{padding:54px 0;background:#b8f36b;color:var(--ink)}
        .cta-inner{display:flex;align-items:center;justify-content:space-between;gap:30px}.cta h2{margin:0 0 8px;font-size:31px}.cta p{margin:0;color:#33402a}
        .cta .btn-secondary{color:var(--ink);border-color:#536d36;background:transparent}
        .site-footer{background:#0c0f10;padding:54px 0 25px;border-top:1px solid #252b2a}
        .footer-grid{display:grid;grid-template-columns:1.3fr repeat(3,1fr);gap:40px;padding-bottom:42px}
        .footer-brand p{color:var(--muted);font-size:13px;max-width:280px;margin:18px 0 0}
        .footer-col h3{font-size:14px;margin:3px 0 16px}.footer-col a{display:block;color:var(--muted);font-size:13px;margin:8px 0;transition:color .2s}.footer-col a:hover{color:var(--mint)}
        .footer-bottom{border-top:1px solid #252b2a;padding-top:22px;display:flex;justify-content:space-between;gap:20px;color:#737d78;font-size:12px}
        @media (max-width:1024px){
            .hero-inner{gap:35px}.main-nav a{padding-left:8px;padding-right:8px}.app-grid{gap:45px}.faq-grid{gap:35px}
        }
        @media (max-width:768px){
            .container{width:min(100% - 32px,var(--container))}
            .notice-inner{padding:8px 0}.notice-link{display:none}
            .nav-wrap{height:68px}.menu-toggle{display:block}
            .main-nav{display:none;position:absolute;left:16px;right:16px;top:76px;padding:10px;background:#171b1d;border:1px solid var(--line);border-radius:10px;box-shadow:var(--shadow);flex-direction:column;align-items:stretch}
            .main-nav.open{display:flex}.main-nav a{padding:13px 15px}
            .hero{min-height:auto}.hero-inner{display:block;min-height:auto;padding:65px 0 45px}
            h1{font-size:42px;margin-top:18px}.hero-copy{font-size:16px}.hero-visual{min-height:350px;margin-top:20px}
            .quick-grid{grid-template-columns:repeat(2,1fr)}.quick-item:nth-child(5){grid-column:span 2}.quick-item{border-bottom:1px solid var(--line)}
            .section{padding:62px 0}.section-head{display:block}.section-desc{margin-top:15px}.section-head .text-link{display:inline-block;margin-top:16px}
            .news-layout,.app-grid,.insight-grid,.faq-grid{grid-template-columns:1fr;gap:20px}.app-grid{gap:35px}.device-stage{min-height:390px}
            .news-row{grid-template-columns:73px 1fr auto;gap:10px}.news-row p{display:none}
            .footer-grid{grid-template-columns:1.5fr 1fr;gap:30px}.cta-inner{display:block}.cta .btn{margin-top:22px}
        }
        @media (max-width:520px){
            .brand-en{display:none}.brand-cn{font-size:17px}
            h1{font-size:35px;line-height:1.22}.hero-actions{display:grid;grid-template-columns:1fr}.btn{width:100%}
            .hero-visual{min-height:295px}.orbit{width:275px}.label-a{right:-4px;top:12px}.label-b{left:-5px;bottom:30px}.label-c{right:10px;bottom:0}
            .quick-grid{grid-template-columns:1fr}.quick-item:nth-child(5){grid-column:auto}.quick-item:first-child{border-left:0}
            .feature-news{padding:23px;min-height:300px}.feature-news h3{font-size:22px}
            .news-list{padding:4px 16px}.news-row{grid-template-columns:64px 1fr auto;padding:17px 0}.news-row h3{font-size:14px}
            .app-copy h2{font-size:29px}.metric-list{grid-template-columns:1fr}.metric{display:flex;justify-content:space-between;align-items:center}
            .footer-grid{grid-template-columns:1fr 1fr}.footer-brand{grid-column:span 2}.footer-bottom{display:block}.footer-bottom span{display:block;margin-top:7px}
            .cta h2{font-size:26px}
        }

/* roulang page: category1 */
:root{
            --ink:#101315;
            --night:#171b1d;
            --panel:#202628;
            --panel-2:#282f30;
            --line:#394243;
            --text:#f3f1e9;
            --muted:#aab2ae;
            --soft:#d5d9d0;
            --mint:#b8f36b;
            --mint-deep:#8fca43;
            --orange:#f3a15f;
            --red:#db715d;
            --radius:14px;
            --shadow:0 18px 42px rgba(0,0,0,.22);
            --container:1200px;
        }
        *{box-sizing:border-box}
        html{scroll-behavior:smooth}
        body{
            margin:0;
            background:var(--ink);
            color:var(--text);
            font-family:"Noto Sans SC","Microsoft YaHei","PingFang SC",Arial,sans-serif;
            font-size:16px;
            line-height:1.7;
            -webkit-font-smoothing:antialiased;
        }
        a{color:inherit;text-decoration:none}
        button,input{font:inherit}
        button{cursor:pointer}
        img{display:block;max-width:100%}
        .container{width:min(var(--container),calc(100% - 48px));margin:0 auto}
        .site-header{
            position:sticky;top:0;z-index:20;
            background:rgba(16,19,21,.96);
            border-bottom:1px solid var(--line);
            backdrop-filter:blur(12px);
        }
        .nav-wrap{height:76px;display:flex;align-items:center;justify-content:space-between;gap:28px}
        .brand{display:inline-flex;align-items:center;gap:11px;min-width:max-content}
        .brand-mark{
            width:34px;height:34px;border:2px solid var(--mint);border-radius:50%;
            position:relative;display:grid;place-items:center;color:var(--mint);font-size:13px;font-weight:800;
        }
        .brand-mark:after{content:"";position:absolute;width:46px;height:15px;border-top:1px solid var(--orange);border-radius:50%;transform:rotate(-28deg)}
        .brand-cn{font-size:19px;font-weight:800}
        .brand-en{display:block;color:var(--muted);font-size:9px;line-height:1.1;letter-spacing:1.3px;margin-top:2px}
        .main-nav{display:flex;align-items:center;gap:5px}
        .main-nav a{
            color:var(--muted);font-size:14px;padding:10px 13px;border-radius:8px;
            transition:background .2s,color .2s,transform .2s;
        }
        .main-nav a:hover,.main-nav a.active{color:var(--text);background:#29302f}
        .main-nav a.active{box-shadow:inset 0 -2px var(--mint)}
        .menu-toggle{display:none;background:transparent;border:1px solid var(--line);color:var(--text);width:44px;height:42px;border-radius:8px}
        .page-hero{
            position:relative;overflow:hidden;background:var(--night);
            border-bottom:1px solid var(--line);padding:88px 0 82px;
        }
        .page-hero:before{
            content:"";position:absolute;inset:0;opacity:.4;
            background:repeating-linear-gradient(112deg,transparent 0 100px,rgba(184,243,107,.08) 101px,transparent 102px 205px);
        }
        .page-hero:after{
            content:"";position:absolute;width:600px;height:600px;right:-170px;top:-260px;
            border:1px solid rgba(243,161,95,.22);border-radius:50%;
            box-shadow:0 0 0 42px rgba(243,161,95,.035),0 0 0 84px rgba(243,161,95,.025);
        }
        .hero-grid{position:relative;z-index:1;display:grid;grid-template-columns:1.15fr .85fr;gap:70px;align-items:center}
        .eyebrow,.section-kicker{
            display:flex;align-items:center;gap:10px;color:var(--mint);
            font-size:12px;font-weight:700;letter-spacing:1.8px;
        }
        .eyebrow:before,.section-kicker:before{content:"";width:28px;height:2px;background:var(--orange)}
        h1{font-size:clamp(40px,5vw,68px);line-height:1.15;margin:18px 0 22px;max-width:760px}
        .hero-copy{color:var(--soft);font-size:18px;max-width:650px}
        .hero-links{display:flex;flex-wrap:wrap;gap:12px;margin-top:32px}
        .btn{
            min-height:48px;display:inline-flex;align-items:center;justify-content:center;gap:9px;
            padding:0 20px;border:1px solid transparent;border-radius:9px;font-weight:750;font-size:14px;
            transition:transform .2s,background .2s,border-color .2s,box-shadow .2s;
        }
        .btn:hover{transform:translateY(-2px)}
        .btn:focus-visible,.main-nav a:focus-visible,.faq-question:focus-visible{outline:3px solid var(--orange);outline-offset:3px}
        .btn-primary{background:var(--mint);color:var(--ink);box-shadow:0 8px 20px rgba(184,243,107,.12)}
        .btn-primary:hover{background:#ccff86;box-shadow:0 12px 28px rgba(184,243,107,.2)}
        .btn-secondary{background:#202627;border-color:#56605e;color:var(--text)}
        .btn-secondary:hover{border-color:var(--mint);background:#293130}
        .topic-board{border:1px solid var(--line);background:#202627;padding:28px;border-radius:var(--radius);box-shadow:var(--shadow)}
        .board-top{display:flex;justify-content:space-between;align-items:center;border-bottom:1px solid var(--line);padding-bottom:18px}
        .board-title{font-size:14px;font-weight:800}
        .live-dot{color:var(--mint);font-size:12px}
        .topic-row{display:flex;justify-content:space-between;gap:18px;padding:18px 0;border-bottom:1px solid var(--line)}
        .topic-row:last-child{border-bottom:0;padding-bottom:0}
        .topic-row span{color:var(--muted);font-size:13px}
        .topic-row strong{font-size:19px;color:var(--text)}
        .section{padding:88px 0}
        .section.alt{background:#171b1d;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
        .section-head{display:flex;align-items:end;justify-content:space-between;gap:30px;margin-bottom:34px}
        .section-title{font-size:34px;line-height:1.25;margin:12px 0 0;font-weight:800}
        .section-desc{max-width:540px;color:var(--muted);margin:0}
        .text-link{color:var(--mint);font-size:14px;font-weight:750;white-space:nowrap}
        .text-link:hover{text-decoration:underline;text-underline-offset:5px}
        .category-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
        .topic-card{
            min-height:210px;padding:26px;border:1px solid var(--line);background:var(--panel);
            border-radius:var(--radius);transition:transform .2s,border-color .2s,background .2s;
        }
        .topic-card:hover{transform:translateY(-4px);border-color:var(--mint);background:var(--panel-2)}
        .topic-card.featured{grid-column:span 2;background:#252d2d}
        .topic-number{color:var(--orange);font-size:12px;font-weight:800;letter-spacing:1px}
        .topic-card h2{font-size:23px;margin:20px 0 10px}
        .topic-card p{color:var(--muted);margin:0;max-width:470px}
        .topic-card a{display:inline-flex;margin-top:22px;color:var(--mint);font-weight:700;font-size:14px}
        .timeline{position:relative;border-left:1px solid var(--line);margin-left:12px}
        .timeline-item{position:relative;padding:0 0 34px 42px}
        .timeline-item:last-child{padding-bottom:0}
        .timeline-item:before{
            content:"";position:absolute;left:-7px;top:8px;width:13px;height:13px;
            border-radius:50%;background:var(--mint);border:3px solid var(--ink);
        }
        .timeline-date{color:var(--orange);font-size:13px;font-weight:700}
        .timeline-item h3{font-size:21px;margin:7px 0 8px}
        .timeline-item p{color:var(--muted);max-width:760px;margin:0}
        .info-strip{display:grid;grid-template-columns:repeat(4,1fr);border:1px solid var(--line);background:var(--panel)}
        .info-cell{padding:25px 22px;border-right:1px solid var(--line)}
        .info-cell:last-child{border-right:0}
        .info-cell strong{display:block;font-size:28px;color:var(--mint);line-height:1.2}
        .info-cell span{display:block;color:var(--muted);font-size:13px;margin-top:7px}
        .faq-list{max-width:880px;margin:0 auto;border-top:1px solid var(--line)}
        .faq-item{border-bottom:1px solid var(--line)}
        .faq-question{
            width:100%;display:flex;align-items:center;justify-content:space-between;gap:20px;
            padding:22px 4px;background:none;border:0;color:var(--text);text-align:left;font-weight:750;
        }
        .faq-question span:last-child{color:var(--mint);font-size:24px;font-weight:400}
        .faq-answer{display:none;color:var(--muted);padding:0 44px 22px 4px}
        .faq-item.open .faq-answer{display:block}
        .cta-band{background:var(--mint);color:var(--ink);padding:45px 0}
        .cta-inner{display:flex;align-items:center;justify-content:space-between;gap:30px}
        .cta-inner h2{font-size:30px;margin:0 0 8px}
        .cta-inner p{margin:0;color:#334026}
        .cta-band .btn-secondary{background:var(--ink);border-color:var(--ink);color:var(--text)}
        .site-footer{background:#101315;border-top:1px solid var(--line);padding:62px 0 24px}
        .footer-grid{display:grid;grid-template-columns:1.7fr 1fr 1fr 1fr;gap:34px}
        .footer-brand p{color:var(--muted);font-size:14px;max-width:360px;margin-top:22px}
        .footer-col{display:flex;flex-direction:column;gap:9px}
        .footer-col h3{font-size:14px;margin:0 0 10px;color:var(--soft)}
        .footer-col a{color:var(--muted);font-size:14px;transition:color .2s}
        .footer-col a:hover{color:var(--mint)}
        .footer-bottom{display:flex;justify-content:space-between;gap:20px;border-top:1px solid var(--line);margin-top:48px;padding-top:20px;color:#7f8985;font-size:12px}
        @media(max-width:1024px){
            .main-nav a{padding:10px 8px;font-size:13px}
            .hero-grid{gap:36px}
            .category-grid{grid-template-columns:repeat(2,1fr)}
            .topic-card.featured{grid-column:span 2}
        }
        @media(max-width:768px){
            .container{width:min(var(--container),calc(100% - 32px))}
            .nav-wrap{height:68px}
            .menu-toggle{display:block}
            .main-nav{
                display:none;position:absolute;left:16px;right:16px;top:76px;
                flex-direction:column;align-items:stretch;padding:10px;background:#202627;
                border:1px solid var(--line);border-radius:10px;box-shadow:var(--shadow)
            }
            .main-nav.open{display:flex}
            .main-nav a{padding:12px 14px}
            .page-hero{padding:62px 0 58px}
            .hero-grid{grid-template-columns:1fr;gap:36px}
            h1{font-size:42px}
            .section{padding:58px 0}
            .section-head{display:block}
            .section-desc{margin-top:16px}
            .section-head .text-link{display:inline-flex;margin-top:18px}
            .category-grid{grid-template-columns:1fr}
            .topic-card.featured{grid-column:auto}
            .info-strip{grid-template-columns:repeat(2,1fr)}
            .info-cell:nth-child(2){border-right:0}
            .info-cell:nth-child(-n+2){border-bottom:1px solid var(--line)}
            .cta-inner{display:block}
            .cta-inner .btn{margin-top:22px}
            .footer-grid{grid-template-columns:1fr 1fr}
            .footer-brand{grid-column:span 2}
            .footer-bottom{display:block}
            .footer-bottom span{display:block;margin-top:6px}
        }
        @media(max-width:520px){
            h1{font-size:35px}
            .hero-copy{font-size:16px}
            .topic-board{padding:22px}
            .info-strip{grid-template-columns:1fr}
            .info-cell,.info-cell:nth-child(2){border-right:0;border-bottom:1px solid var(--line)}
            .info-cell:last-child{border-bottom:0}
            .footer-grid{grid-template-columns:1fr}
            .footer-brand{grid-column:auto}
            .brand-cn{font-size:17px}
        }

/* roulang page: article */
:root{
            --ink:#101315;
            --night:#171b1d;
            --panel:#202628;
            --panel-2:#282f30;
            --line:#394243;
            --text:#f3f1e9;
            --muted:#aab2ae;
            --soft:#d5d9d0;
            --mint:#b8f36b;
            --mint-deep:#8fca43;
            --orange:#f3a15f;
            --red:#db715d;
            --radius:14px;
            --shadow:0 18px 42px rgba(0,0,0,.22);
            --container:1200px;
        }
        *{box-sizing:border-box}
        html{scroll-behavior:smooth}
        body{
            margin:0;background:var(--ink);color:var(--text);
            font-family:"Noto Sans SC","Microsoft YaHei","PingFang SC",Arial,sans-serif;
            font-size:16px;line-height:1.7;-webkit-font-smoothing:antialiased;
        }
        a{color:inherit;text-decoration:none}
        a:hover{color:var(--mint)}
        button,input{font:inherit}
        button{cursor:pointer}
        img{display:block;max-width:100%}
        .container{width:min(var(--container),calc(100% - 48px));margin:0 auto}
        .site-header{
            position:sticky;top:0;z-index:20;background:rgba(16,19,21,.96);
            border-bottom:1px solid var(--line);backdrop-filter:blur(12px)
        }
        .nav-wrap{height:76px;display:flex;align-items:center;justify-content:space-between;gap:28px}
        .brand{display:inline-flex;align-items:center;gap:11px;min-width:max-content}
        .brand-mark{
            width:34px;height:34px;border:2px solid var(--mint);border-radius:50%;
            position:relative;display:grid;place-items:center;color:var(--mint);
            font-size:13px;font-weight:800
        }
        .brand-mark:after{
            content:"";position:absolute;width:46px;height:15px;border-top:1px solid var(--orange);
            border-radius:50%;transform:rotate(-28deg)
        }
        .brand-cn{font-size:19px;font-weight:800;letter-spacing:0}
        .brand-en{
            display:block;color:var(--muted);font-size:9px;line-height:1.1;
            letter-spacing:1.3px;margin-top:2px
        }
        .main-nav{display:flex;align-items:center;gap:5px}
        .main-nav a{
            color:var(--muted);font-size:14px;padding:10px 13px;border-radius:8px;
            transition:background .2s,color .2s,transform .2s
        }
        .main-nav a:hover,.main-nav a.active{color:var(--text);background:#29302f}
        .main-nav a.active{box-shadow:inset 0 -2px var(--mint)}
        .menu-toggle{
            display:none;background:transparent;border:1px solid var(--line);color:var(--text);
            width:44px;height:42px;border-radius:8px
        }
        .announcement{border-bottom:1px solid var(--line);background:#1c2223}
        .announcement-inner{
            min-height:38px;display:flex;align-items:center;justify-content:space-between;
            gap:20px;color:var(--muted);font-size:12px
        }
        .announcement strong{color:var(--orange);font-weight:700}
        .article-hero{
            position:relative;overflow:hidden;background:var(--night);
            border-bottom:1px solid var(--line);padding:80px 0 76px
        }
        .article-hero:before{
            content:"";position:absolute;inset:0;opacity:.36;
            background:repeating-linear-gradient(78deg,transparent 0 84px,
            rgba(184,243,107,.08) 85px,transparent 86px 170px)
        }
        .article-hero:after{
            content:"";position:absolute;width:620px;height:620px;right:-180px;top:-260px;
            border:1px solid rgba(184,243,107,.18);border-radius:50%;
            box-shadow:0 0 0 42px rgba(184,243,107,.035),0 0 0 84px rgba(184,243,107,.025)
        }
        .article-hero-inner{position:relative;z-index:1}
        .breadcrumb{
            display:flex;align-items:center;flex-wrap:wrap;gap:9px;
            color:var(--muted);font-size:13px;margin-bottom:28px
        }
        .breadcrumb span{color:#65706c}
        .eyebrow,.section-kicker{
            display:flex;align-items:center;gap:10px;color:var(--mint);
            font-size:12px;font-weight:700;letter-spacing:1.8px
        }
        .eyebrow:before,.section-kicker:before{content:"";width:28px;height:2px;background:var(--orange)}
        .article-hero h1{
            max-width:900px;margin:14px 0 20px;font-size:clamp(34px,5vw,62px);
            line-height:1.22;letter-spacing:0;font-weight:850
        }
        .article-intro{max-width:770px;color:var(--soft);font-size:18px;line-height:1.9;margin:0}
        .article-meta{display:flex;flex-wrap:wrap;gap:12px 22px;margin-top:28px;color:var(--muted);font-size:13px}
        .tag{
            display:inline-flex;align-items:center;width:max-content;padding:4px 9px;border-radius:5px;
            background:rgba(184,243,107,.12);color:var(--mint);font-size:12px;font-weight:750
        }
        .tag.orange{background:rgba(243,161,95,.13);color:var(--orange)}
        .article-main{padding:78px 0 96px}
        .article-layout{display:grid;grid-template-columns:minmax(0,820px) 290px;gap:66px;align-items:start}
        .article-body{
            min-width:0;background:var(--panel);border:1px solid var(--line);
            border-radius:var(--radius);padding:clamp(25px,5vw,54px);box-shadow:var(--shadow)
        }
        .article-body h2{
            color:var(--text);font-size:29px;line-height:1.4;margin:38px 0 16px;
            padding-left:16px;border-left:3px solid var(--mint)
        }
        .article-body h3{font-size:21px;line-height:1.5;color:var(--soft);margin:30px 0 12px}
        .article-body p{color:var(--soft);margin:0 0 22px}
        .article-body ul,.article-body ol{padding-left:24px;color:var(--soft);margin:0 0 24px}
        .article-body li{padding:5px 0}
        .article-body blockquote{
            margin:30px 0;padding:20px 24px;border-left:3px solid var(--orange);
            background:#292f30;color:var(--soft)
        }
        .article-body img{width:100%;border-radius:10px;border:1px solid var(--line);margin:28px 0 8px}
        .article-body table{width:100%;border-collapse:collapse;margin:26px 0;color:var(--soft);overflow:hidden}
        .article-body th,.article-body td{border:1px solid var(--line);padding:12px 14px;text-align:left}
        .article-body th{background:var(--panel-2);color:var(--mint)}
        .article-body hr{border:0;border-top:1px solid var(--line);margin:34px 0}
        .side-stack{display:grid;gap:18px;position:sticky;top:104px}
        .side-panel{background:var(--panel);border:1px solid var(--line);border-radius:12px;padding:23px}
        .side-panel h2{font-size:17px;margin:0 0 16px}
        .side-panel p{font-size:13px;color:var(--muted);margin:0 0 18px}
        .side-links{display:grid;gap:4px}
        .side-links a{
            display:flex;justify-content:space-between;gap:12px;padding:10px 0;
            border-bottom:1px solid #313a39;color:var(--soft);font-size:14px
        }
        .side-links a:last-child{border-bottom:0}
        .side-links a:after{content:"→";color:var(--mint)}
        .btn{
            min-height:48px;display:inline-flex;align-items:center;justify-content:center;gap:10px;
            padding:0 20px;border:1px solid transparent;border-radius:9px;font-weight:750;
            font-size:14px;transition:transform .2s,background .2s,border-color .2s,box-shadow .2s
        }
        .btn:hover{transform:translateY(-2px)}
        .btn:focus-visible,.main-nav a:focus-visible,.menu-toggle:focus-visible{
            outline:3px solid var(--orange);outline-offset:3px
        }
        .btn-primary{background:var(--mint);color:var(--ink);box-shadow:0 8px 20px rgba(184,243,107,.12)}
        .btn-primary:hover{background:#ccff86;color:var(--ink);box-shadow:0 12px 28px rgba(184,243,107,.2)}
        .btn-secondary{background:#202627;border-color:#56605e;color:var(--text)}
        .btn-secondary:hover{border-color:var(--mint);background:#293130;color:var(--text)}
        .article-empty{
            padding:48px 24px;text-align:center;border:1px dashed #56605e;
            border-radius:10px;background:#252b2c;color:var(--muted)
        }
        .article-empty strong{display:block;color:var(--text);font-size:22px;margin-bottom:8px}
        .article-empty p{margin:0 0 22px}
        .related-section{padding:0 0 94px}
        .section-head{display:flex;align-items:end;justify-content:space-between;gap:30px;margin-bottom:30px}
        .section-title{font-size:32px;line-height:1.25;margin:12px 0 0;font-weight:800}
        .section-desc{max-width:520px;color:var(--muted);margin:0}
        .text-link{color:var(--mint);font-size:14px;font-weight:750;white-space:nowrap}
        .text-link:hover{text-decoration:underline;text-underline-offset:5px}
        .related-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
        .related-card{
            min-height:190px;padding:24px;background:var(--panel);border:1px solid var(--line);
            border-radius:var(--radius);transition:transform .2s,border-color .2s,background .2s
        }
        .related-card:hover{transform:translateY(-4px);border-color:#65736c;background:var(--panel-2)}
        .related-card h3{font-size:19px;line-height:1.45;margin:18px 0 12px}
        .related-card p{font-size:13px;color:var(--muted);margin:0 0 18px}
        .card-meta{display:flex;justify-content:space-between;gap:12px;color:var(--muted);font-size:12px}
        .cta-band{background:var(--panel-2);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
        .cta-inner{display:flex;align-items:center;justify-content:space-between;gap:30px;padding:52px 0}
        .cta-inner h2{font-size:28px;margin:0 0 8px}
        .cta-inner p{color:var(--muted);margin:0}
        .cta-actions{display:flex;flex-wrap:wrap;gap:12px}
        .site-footer{background:#111617;border-top:1px solid var(--line);padding:58px 0 22px}
        .footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:38px}
        .footer-brand p{max-width:330px;color:var(--muted);font-size:13px;margin:22px 0 0}
        .footer-col{display:grid;align-content:start;gap:8px}
        .footer-col h3{font-size:14px;color:var(--text);margin:0 0 9px}
        .footer-col a{font-size:13px;color:var(--muted);transition:color .2s}
        .footer-col a:hover{color:var(--mint)}
        .footer-bottom{
            display:flex;justify-content:space-between;gap:20px;border-top:1px solid var(--line);
            margin-top:42px;padding-top:19px;color:#7f8984;font-size:12px
        }
        @media(max-width:1024px){
            .main-nav a{padding-left:9px;padding-right:9px;font-size:13px}
            .article-layout{grid-template-columns:minmax(0,1fr) 250px;gap:28px}
            .footer-grid{grid-template-columns:1.4fr 1fr 1fr 1fr;gap:22px}
        }
        @media(max-width:768px){
            .container{width:min(var(--container),calc(100% - 32px))}
            .nav-wrap{height:68px}
            .menu-toggle{display:block}
            .main-nav{
                display:none;position:absolute;left:16px;right:16px;top:76px;
                padding:10px;background:#171b1d;border:1px solid var(--line);
                border-radius:10px;box-shadow:var(--shadow);flex-direction:column;align-items:stretch
            }
            .main-nav.open{display:flex}
            .main-nav a{padding:12px 14px}
            .announcement-inner{padding:7px 0;display:block}
            .announcement-inner span{display:block}
            .article-hero{padding:54px 0 55px}
            .article-hero h1{font-size:36px}
            .article-intro{font-size:16px}
            .article-layout{display:block}
            .article-body{padding:25px 20px}
            .side-stack{position:static;margin-top:26px}
            .related-grid{grid-template-columns:1fr}
            .related-section{padding-bottom:58px}
            .cta-inner{display:block;padding:40px 0}
            .cta-actions{margin-top:23px}
            .footer-grid{grid-template-columns:1fr 1fr}
            .footer-brand{grid-column:1/-1}
            .footer-bottom{display:block}
            .footer-bottom span{display:block;margin-top:5px}
        }
        @media(max-width:520px){
            .brand-cn{font-size:17px}
            .brand-en{font-size:8px}
            .article-hero h1{font-size:30px}
            .breadcrumb{font-size:12px}
            .article-body h2{font-size:24px}
            .article-body h3{font-size:19px}
            .article-meta{display:grid;gap:6px}
            .cta-actions .btn{width:100%}
            .footer-grid{grid-template-columns:1fr}
            .footer-brand{grid-column:auto}
        }

/* roulang page: category2 */
:root{
            --ink:#101315;
            --night:#171b1d;
            --panel:#202628;
            --panel-2:#282f30;
            --line:#394243;
            --text:#f3f1e9;
            --muted:#aab2ae;
            --soft:#d5d9d0;
            --mint:#b8f36b;
            --mint-deep:#8fca43;
            --orange:#f3a15f;
            --red:#db715d;
            --radius:14px;
            --shadow:0 18px 42px rgba(0,0,0,.22);
            --container:1200px;
        }
        *{box-sizing:border-box}
        html{scroll-behavior:smooth}
        body{
            margin:0;
            background:var(--ink);
            color:var(--text);
            font-family:"Noto Sans SC","Microsoft YaHei","PingFang SC",Arial,sans-serif;
            font-size:16px;
            line-height:1.7;
            -webkit-font-smoothing:antialiased;
        }
        a{color:inherit;text-decoration:none}
        a:hover{color:inherit}
        button,input{font:inherit}
        button{cursor:pointer}
        img{display:block;max-width:100%}
        .container{width:min(var(--container),calc(100% - 48px));margin:0 auto}
        .site-header{
            position:sticky;top:0;z-index:20;
            background:rgba(16,19,21,.96);
            border-bottom:1px solid var(--line);
            backdrop-filter:blur(12px);
        }
        .nav-wrap{height:76px;display:flex;align-items:center;justify-content:space-between;gap:28px}
        .brand{display:inline-flex;align-items:center;gap:11px;min-width:max-content}
        .brand-mark{
            width:34px;height:34px;border:2px solid var(--mint);border-radius:50%;
            position:relative;display:grid;place-items:center;color:var(--mint);font-size:13px;font-weight:800;
        }
        .brand-mark:after{
            content:"";position:absolute;width:46px;height:15px;border-top:1px solid var(--orange);
            border-radius:50%;transform:rotate(-28deg)
        }
        .brand-cn{font-size:19px;font-weight:800;letter-spacing:0}
        .brand-en{display:block;color:var(--muted);font-size:9px;line-height:1.1;letter-spacing:1.3px;margin-top:2px}
        .main-nav{display:flex;align-items:center;gap:5px}
        .main-nav a{
            color:var(--muted);font-size:14px;padding:10px 13px;border-radius:8px;
            transition:background .2s,color .2s,transform .2s;
        }
        .main-nav a:hover,.main-nav a.active{color:var(--text);background:#29302f}
        .main-nav a.active{box-shadow:inset 0 -2px var(--mint)}
        .menu-toggle{
            display:none;background:transparent;border:1px solid var(--line);color:var(--text);
            width:44px;height:42px;border-radius:8px
        }
        .page-intro{
            position:relative;
            overflow:hidden;
            padding:82px 0 72px;
            border-bottom:1px solid var(--line);
            background:
                linear-gradient(112deg,rgba(16,19,21,.98),rgba(23,27,29,.92)),
                repeating-linear-gradient(90deg,transparent 0 110px,rgba(184,243,107,.05) 111px,transparent 112px);
        }
        .page-intro:after{
            content:"";position:absolute;width:540px;height:540px;right:-150px;top:-190px;
            border:1px solid rgba(184,243,107,.19);border-radius:50%;
            box-shadow:0 0 0 38px rgba(184,243,107,.035),0 0 0 76px rgba(184,243,107,.025);
        }
        .intro-grid{
            position:relative;z-index:1;display:grid;grid-template-columns:1.1fr .9fr;
            gap:70px;align-items:end
        }
        .eyebrow,.section-kicker{
            display:flex;align-items:center;gap:10px;color:var(--mint);
            font-size:12px;font-weight:700;letter-spacing:1.8px;text-transform:uppercase
        }
        .eyebrow:before,.section-kicker:before{content:"";width:28px;height:2px;background:var(--orange)}
        h1{
            max-width:720px;margin:18px 0 20px;font-size:clamp(38px,5vw,68px);
            line-height:1.16;letter-spacing:-1.5px;font-weight:850
        }
        .intro-copy{max-width:650px;color:var(--soft);font-size:18px;line-height:1.9;margin:0}
        .breadcrumb{
            display:flex;flex-wrap:wrap;gap:9px;align-items:center;color:var(--muted);
            font-size:13px;margin-bottom:27px
        }
        .breadcrumb a:hover{color:var(--mint)}
        .breadcrumb .sep{color:var(--orange)}
        .intro-note{
            border-left:2px solid var(--mint);padding:9px 0 9px 22px;color:var(--muted);
            font-size:14px;line-height:1.8
        }
        .intro-note strong{display:block;color:var(--text);font-size:20px;margin-bottom:6px}
        .section{padding:88px 0}
        .section-alt{background:#171c1e;border-top:1px solid rgba(57,66,67,.55);border-bottom:1px solid rgba(57,66,67,.55)}
        .section-head{
            display:flex;align-items:end;justify-content:space-between;gap:30px;margin-bottom:34px
        }
        .section-title{font-size:34px;line-height:1.25;margin:12px 0 0;font-weight:800}
        .section-desc{max-width:540px;color:var(--muted);margin:0}
        .text-link{color:var(--mint);font-size:14px;font-weight:750;white-space:nowrap}
        .text-link:hover{text-decoration:underline;text-underline-offset:5px}
        .event-board{
            display:grid;grid-template-columns:1.25fr .75fr;gap:20px
        }
        .board-main,.board-side,.timeline-card,.guide-card,.faq-item,.cta-panel{
            background:var(--panel);border:1px solid var(--line);border-radius:var(--radius)
        }
        .board-main{padding:32px;position:relative;overflow:hidden;min-height:315px}
        .board-main:before{
            content:"";position:absolute;right:-80px;bottom:-150px;width:420px;height:420px;
            border:1px solid rgba(184,243,107,.12);border-radius:50%;
            box-shadow:0 0 0 32px rgba(184,243,107,.025),0 0 0 64px rgba(184,243,107,.02)
        }
        .board-top{display:flex;align-items:center;justify-content:space-between;gap:18px;position:relative;z-index:1}
        .tag{
            display:inline-flex;align-items:center;width:max-content;padding:4px 9px;border-radius:5px;
            background:rgba(184,243,107,.12);color:var(--mint);font-size:12px;font-weight:750
        }
        .tag.orange{background:rgba(243,161,95,.13);color:var(--orange)}
        .board-date{font-size:12px;color:var(--muted)}
        .board-main h2{font-size:29px;line-height:1.4;max-width:620px;margin:25px 0 12px;position:relative;z-index:1}
        .board-main p{color:var(--muted);max-width:570px;position:relative;z-index:1;margin:0}
        .board-footer{display:flex;align-items:center;justify-content:space-between;margin-top:29px;position:relative;z-index:1}
        .board-code{color:var(--orange);font-size:12px;letter-spacing:1.5px}
        .board-side{padding:28px}
        .board-side h3{margin:0 0 22px;font-size:20px}
        .status-line{display:flex;align-items:center;gap:12px;padding:15px 0;border-top:1px solid var(--line)}
        .status-line:first-of-type{border-top:0;padding-top:0}
        .status-dot{width:9px;height:9px;border-radius:50%;background:var(--mint);box-shadow:0 0 0 5px rgba(184,243,107,.1)}
        .status-dot.orange{background:var(--orange);box-shadow:0 0 0 5px rgba(243,161,95,.1)}
        .status-dot.gray{background:#7b8580;box-shadow:0 0 0 5px rgba(123,133,128,.1)}
        .status-line strong{display:block;font-size:15px}
        .status-line span{display:block;color:var(--muted);font-size:12px;margin-top:2px}
        .timeline{
            display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin-top:18px
        }
        .timeline-card{padding:25px;min-height:188px;transition:transform .2s,border-color .2s,background .2s}
        .timeline-card:hover,.guide-card:hover{transform:translateY(-4px);border-color:#68766c;background:var(--panel-2)}
        .timeline-index{color:var(--orange);font-size:12px;letter-spacing:1px;font-weight:800}
        .timeline-card h3{font-size:20px;margin:18px 0 9px}
        .timeline-card p{color:var(--muted);font-size:14px;margin:0}
        .process{
            display:grid;grid-template-columns:repeat(4,1fr);gap:0;border:1px solid var(--line);
            border-radius:var(--radius);overflow:hidden;background:var(--panel)
        }
        .process-item{padding:27px 24px;min-height:180px;border-right:1px solid var(--line);position:relative}
        .process-item:last-child{border-right:0}
        .process-no{font-size:12px;color:var(--mint);font-weight:800;letter-spacing:1px}
        .process-item h3{font-size:18px;margin:20px 0 9px}
        .process-item p{font-size:13px;color:var(--muted);margin:0}
        .process-item:after{
            content:"↗";position:absolute;right:21px;top:24px;color:var(--orange);font-size:20px
        }
        .guide-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
        .guide-card{padding:27px;min-height:220px;transition:transform .2s,border-color .2s,background .2s}
        .guide-card .icon{
            width:42px;height:42px;display:grid;place-items:center;border:1px solid var(--line);
            border-radius:10px;color:var(--mint);font-weight:800
        }
        .guide-card h3{font-size:20px;margin:22px 0 9px}
        .guide-card p{color:var(--muted);font-size:14px;margin:0 0 18px}
        .guide-card a{color:var(--mint);font-size:13px;font-weight:750}
        .faq-layout{display:grid;grid-template-columns:.72fr 1.28fr;gap:58px;align-items:start}
        .faq-lead p{color:var(--muted);margin:20px 0 0}
        .faq-list{display:grid;gap:10px}
        .faq-item{overflow:hidden}
        .faq-question{
            width:100%;display:flex;align-items:center;justify-content:space-between;gap:20px;
            padding:21px 23px;background:transparent;border:0;color:var(--text);text-align:left;
            font-weight:750;font-size:16px
        }
        .faq-question span:last-child{color:var(--mint);font-size:23px;font-weight:400;line-height:1}
        .faq-answer{padding:0 23px 21px;color:var(--muted);font-size:14px}
        .cta-panel{
            position:relative;overflow:hidden;padding:46px 52px;
            display:flex;justify-content:space-between;align-items:center;gap:30px;
            background:#252c2b
        }
        .cta-panel:after{
            content:"X";position:absolute;right:38px;bottom:-48px;color:rgba(184,243,107,.07);
            font-size:190px;font-weight:900;line-height:1
        }
        .cta-panel h2{font-size:30px;margin:0 0 10px;position:relative;z-index:1}
        .cta-panel p{color:var(--muted);margin:0;position:relative;z-index:1}
        .cta-actions{display:flex;gap:12px;flex-wrap:wrap;position:relative;z-index:1}
        .btn{
            min-height:48px;display:inline-flex;align-items:center;justify-content:center;gap:10px;
            padding:0 20px;border:1px solid transparent;border-radius:9px;font-weight:750;font-size:14px;
            transition:transform .2s,background .2s,border-color .2s,box-shadow .2s
        }
        .btn:hover{transform:translateY(-2px)}
        .btn:focus-visible,.main-nav a:focus-visible,.faq-question:focus-visible{outline:3px solid var(--orange);outline-offset:3px}
        .btn-primary{background:var(--mint);color:var(--ink);box-shadow:0 8px 20px rgba(184,243,107,.12)}
        .btn-primary:hover{background:#ccff86;color:var(--ink);box-shadow:0 12px 28px rgba(184,243,107,.2)}
        .btn-secondary{background:#202627;border-color:#56605e;color:var(--text)}
        .btn-secondary:hover{border-color:var(--mint);background:#293130}
        .site-footer{padding:62px 0 24px;background:#101315;border-top:1px solid var(--line)}
        .footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:38px}
        .footer-brand p{max-width:330px;color:var(--muted);font-size:13px;margin:20px 0 0}
        .footer-col{display:flex;flex-direction:column;gap:9px}
        .footer-col h3{font-size:14px;color:var(--soft);margin:0 0 9px}
        .footer-col a{color:var(--muted);font-size:13px;transition:color .2s,transform .2s}
        .footer-col a:hover{color:var(--mint);transform:translateX(3px)}
        .footer-bottom{
            display:flex;justify-content:space-between;gap:20px;border-top:1px solid var(--line);
            margin-top:48px;padding-top:20px;color:#7f8985;font-size:12px
        }
        @media (max-width:1024px){
            .main-nav a{padding-left:8px;padding-right:8px;font-size:13px}
            .intro-grid{gap:38px}
            .event-board,.faq-layout{gap:28px}
            .process-item{padding:23px 18px}
        }
        @media (max-width:768px){
            .container{width:min(var(--container),calc(100% - 36px))}
            .nav-wrap{height:68px}
            .menu-toggle{display:block}
            .main-nav{
                display:none;position:absolute;top:68px;left:18px;right:18px;padding:10px;
                background:#171b1d;border:1px solid var(--line);border-radius:10px;
                flex-direction:column;align-items:stretch;box-shadow:var(--shadow)
            }
            .main-nav.open{display:flex}
            .main-nav a{padding:12px 14px}
            .page-intro{padding:58px 0 52px}
            .intro-grid{grid-template-columns:1fr;gap:30px}
            h1{font-size:44px;letter-spacing:-.8px}
            .intro-copy{font-size:16px}
            .section{padding:60px 0}
            .section-head{display:block;margin-bottom:26px}
            .section-desc{margin-top:14px}
            .event-board,.faq-layout{grid-template-columns:1fr}
            .timeline,.guide-grid{grid-template-columns:1fr}
            .process{grid-template-columns:1fr 1fr}
            .process-item:nth-child(2){border-right:0}
            .process-item:nth-child(-n+2){border-bottom:1px solid var(--line)}
            .process-item:nth-child(3){border-top:0}
            .cta-panel{display:block;padding:34px 28px}
            .cta-actions{margin-top:25px}
            .footer-grid{grid-template-columns:1fr 1fr;gap:30px}
            .footer-brand{grid-column:1/-1}
        }
        @media (max-width:520px){
            .container{width:min(var(--container),calc(100% - 28px))}
            .brand-cn{font-size:17px}
            .brand-en{font-size:8px}
            h1{font-size:35px}
            .intro-note strong{font-size:18px}
            .board-main,.board-side{padding:23px}
            .board-main h2{font-size:23px}
            .board-footer{align-items:flex-start;flex-direction:column;gap:16px}
            .process{grid-template-columns:1fr}
            .process-item{border-right:0!important;border-bottom:1px solid var(--line)}
            .process-item:last-child{border-bottom:0}
            .cta-panel h2{font-size:25px}
            .btn{width:100%}
            .cta-actions{display:grid}
            .footer-grid{grid-template-columns:1fr}
            .footer-brand{grid-column:auto}
            .footer-bottom{display:block;line-height:1.8}
            .footer-bottom span{display:block}
        }

/* roulang page: category3 */
:root{
            --ink:#101315;
            --night:#171b1d;
            --panel:#202628;
            --panel-2:#282f30;
            --line:#394243;
            --text:#f3f1e9;
            --muted:#aab2ae;
            --soft:#d5d9d0;
            --mint:#b8f36b;
            --mint-deep:#8fca43;
            --orange:#f3a15f;
            --red:#db715d;
            --radius:14px;
            --shadow:0 18px 42px rgba(0,0,0,.22);
            --container:1200px;
        }
        *{box-sizing:border-box}
        html{scroll-behavior:smooth}
        body{
            margin:0;background:var(--ink);color:var(--text);
            font-family:"Noto Sans SC","Microsoft YaHei","PingFang SC",Arial,sans-serif;
            font-size:16px;line-height:1.7;-webkit-font-smoothing:antialiased;
        }
        a{color:inherit;text-decoration:none}
        img{display:block;max-width:100%}
        button,input{font:inherit}
        button{cursor:pointer}
        .container{width:min(var(--container),calc(100% - 48px));margin:0 auto}
        .site-header{
            position:sticky;top:0;z-index:20;background:rgba(16,19,21,.97);
            border-bottom:1px solid var(--line);backdrop-filter:blur(12px)
        }
        .nav-wrap{height:76px;display:flex;align-items:center;justify-content:space-between;gap:28px}
        .brand{display:inline-flex;align-items:center;gap:11px;min-width:max-content}
        .brand-mark{
            width:34px;height:34px;border:2px solid var(--mint);border-radius:50%;
            position:relative;display:grid;place-items:center;color:var(--mint);font-size:13px;font-weight:800
        }
        .brand-mark:after{
            content:"";position:absolute;width:46px;height:15px;border-top:1px solid var(--orange);
            border-radius:50%;transform:rotate(-28deg)
        }
        .brand-cn{font-size:19px;font-weight:800}
        .brand-en{display:block;color:var(--muted);font-size:9px;line-height:1.1;letter-spacing:1.3px;margin-top:2px}
        .main-nav{display:flex;align-items:center;gap:5px}
        .main-nav a{
            color:var(--muted);font-size:14px;padding:10px 13px;border-radius:8px;
            transition:background .2s,color .2s,transform .2s
        }
        .main-nav a:hover,.main-nav a.active{color:var(--text);background:#29302f}
        .main-nav a.active{box-shadow:inset 0 -2px var(--mint)}
        .menu-toggle{
            display:none;background:transparent;border:1px solid var(--line);
            color:var(--text);width:44px;height:42px;border-radius:8px
        }
        .page-intro{
            position:relative;overflow:hidden;border-bottom:1px solid var(--line);
            background:#1b2021;padding:76px 0 72px
        }
        .page-intro:before{
            content:"03";position:absolute;right:7%;top:-40px;color:#252d2d;
            font-size:250px;font-weight:900;line-height:1
        }
        .intro-grid{position:relative;z-index:1;display:grid;grid-template-columns:1.05fr .95fr;gap:70px;align-items:center}
        .eyebrow,.section-kicker{
            display:flex;align-items:center;gap:10px;color:var(--mint);
            font-size:12px;font-weight:700;letter-spacing:1.8px
        }
        .eyebrow:before,.section-kicker:before{content:"";width:28px;height:2px;background:var(--orange)}
        h1{font-size:clamp(38px,5vw,64px);line-height:1.18;letter-spacing:-1px;margin:17px 0 20px;font-weight:850}
        .intro-copy{max-width:640px;color:var(--soft);font-size:18px;line-height:1.9;margin:0}
        .crumbs{color:var(--muted);font-size:13px;margin-top:27px}
        .crumbs a{color:var(--mint)}
        .guide-board{
            border:1px solid var(--line);background:var(--panel);border-radius:var(--radius);
            padding:25px;box-shadow:var(--shadow)
        }
        .board-top{display:flex;justify-content:space-between;align-items:center;border-bottom:1px solid var(--line);padding-bottom:18px}
        .board-title{font-weight:800;font-size:17px}
        .board-status{color:var(--mint);font-size:12px}
        .board-list{margin:5px 0 0;padding:0;list-style:none}
        .board-list li{
            display:flex;align-items:center;gap:14px;padding:17px 0;border-bottom:1px solid #303939
        }
        .board-list li:last-child{border-bottom:0}
        .board-num{color:var(--orange);font-size:13px;font-weight:800;width:25px}
        .board-list strong{display:block;font-size:15px}
        .board-list span{display:block;color:var(--muted);font-size:12px;margin-top:2px}
        .section{padding:88px 0}
        .section-head{display:flex;justify-content:space-between;align-items:end;gap:30px;margin-bottom:34px}
        .section-title{font-size:34px;line-height:1.25;margin:12px 0 0;font-weight:800}
        .section-desc{max-width:560px;color:var(--muted);margin:0}
        .guide-layout{display:grid;grid-template-columns:280px 1fr;gap:26px}
        .side-index,.guide-content,.note-box,.faq-list,.cta-box{
            border:1px solid var(--line);background:var(--panel);border-radius:var(--radius)
        }
        .side-index{padding:24px;height:max-content;position:sticky;top:103px}
        .side-index h3{font-size:17px;margin:0 0 16px}
        .index-link{
            display:flex;justify-content:space-between;align-items:center;
            padding:12px 0;border-bottom:1px solid #303939;color:var(--muted);font-size:14px
        }
        .index-link:last-child{border-bottom:0}
        .index-link:hover,.index-link.current{color:var(--mint)}
        .guide-content{padding:32px}
        .guide-content h3{font-size:25px;margin:0 0 11px}
        .guide-content>p{color:var(--muted);margin:0 0 25px}
        .steps{display:grid;grid-template-columns:repeat(3,1fr);gap:15px}
        .step{padding:21px;background:var(--panel-2);border-radius:10px;border:1px solid #343d3c}
        .step-no{color:var(--mint);font-size:12px;font-weight:800;letter-spacing:1px}
        .step h4{font-size:16px;margin:9px 0 6px}
        .step p{color:var(--muted);font-size:14px;margin:0}
        .topics{background:#1a1f20;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
        .topic-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}
        .topic-card{padding:23px;background:var(--panel);border:1px solid var(--line);border-radius:12px;transition:.22s}
        .topic-card:hover{transform:translateY(-4px);border-color:var(--mint);box-shadow:0 12px 26px rgba(0,0,0,.2)}
        .topic-card .tag{display:inline-block;color:var(--orange);font-size:12px}
        .topic-card h3{font-size:18px;margin:16px 0 8px}
        .topic-card p{font-size:14px;color:var(--muted);margin:0}
        .tag{padding:4px 9px;border-radius:5px;background:rgba(184,243,107,.12);color:var(--mint);font-size:12px;font-weight:750}
        .note-box{margin-top:24px;padding:22px 25px;border-left:3px solid var(--orange)}
        .note-box strong{display:block;color:var(--orange);margin-bottom:4px}
        .note-box p{margin:0;color:var(--muted);font-size:14px}
        .faq-list{padding:8px 26px}
        .faq-item{border-bottom:1px solid var(--line)}
        .faq-item:last-child{border-bottom:0}
        .faq-question{
            width:100%;display:flex;justify-content:space-between;gap:20px;text-align:left;
            border:0;background:none;color:var(--text);padding:21px 0;font-weight:750
        }
        .faq-question span:last-child{color:var(--mint);font-size:22px;line-height:1}
        .faq-answer{display:none;color:var(--muted);font-size:14px;padding:0 36px 20px 0}
        .faq-item.open .faq-answer{display:block}
        .faq-item.open .faq-question span:last-child{transform:rotate(45deg)}
        .cta-box{
            padding:42px;display:flex;justify-content:space-between;align-items:center;
            gap:30px;background:var(--panel-2)
        }
        .cta-box h2{font-size:30px;margin:0 0 8px}
        .cta-box p{margin:0;color:var(--muted)}
        .btn{
            min-height:48px;display:inline-flex;align-items:center;justify-content:center;gap:10px;
            padding:0 20px;border:1px solid transparent;border-radius:9px;font-weight:750;font-size:14px;
            transition:transform .2s,background .2s,border-color .2s,box-shadow .2s
        }
        .btn:hover{transform:translateY(-2px)}
        .btn:focus-visible,.main-nav a:focus-visible,.faq-question:focus-visible{
            outline:3px solid var(--orange);outline-offset:3px
        }
        .btn-primary{background:var(--mint);color:var(--ink);box-shadow:0 8px 20px rgba(184,243,107,.12)}
        .btn-primary:hover{background:#ccff86;box-shadow:0 12px 28px rgba(184,243,107,.2)}
        .btn-secondary{background:#202627;border-color:#56605e;color:var(--text)}
        .btn-secondary:hover{border-color:var(--mint);background:#293130}
        .site-footer{background:#15191a;border-top:1px solid var(--line);padding:60px 0 22px}
        .footer-grid{display:grid;grid-template-columns:1.7fr 1fr 1fr 1fr;gap:40px}
        .footer-brand p{max-width:350px;color:var(--muted);font-size:14px;margin:18px 0 0}
        .footer-col{display:flex;flex-direction:column;gap:9px}
        .footer-col h3{font-size:14px;margin:0 0 8px;color:var(--soft)}
        .footer-col a{color:var(--muted);font-size:14px}
        .footer-col a:hover{color:var(--mint)}
        .footer-bottom{
            display:flex;justify-content:space-between;gap:20px;border-top:1px solid var(--line);
            margin-top:42px;padding-top:19px;color:#7f8985;font-size:12px
        }
        @media(max-width:1024px){
            .main-nav a{padding:9px 8px;font-size:13px}
            .intro-grid{gap:35px}
            .topic-grid{grid-template-columns:repeat(2,1fr)}
        }
        @media(max-width:768px){
            .container{width:min(var(--container),calc(100% - 32px))}
            .nav-wrap{height:68px}
            .menu-toggle{display:block}
            .main-nav{
                display:none;position:absolute;left:16px;right:16px;top:76px;
                flex-direction:column;align-items:stretch;padding:10px;background:var(--panel);
                border:1px solid var(--line);border-radius:10px;box-shadow:var(--shadow)
            }
            .main-nav.show{display:flex}
            .main-nav a{padding:13px 14px}
            .intro-grid,.guide-layout{grid-template-columns:1fr}
            .page-intro{padding:57px 0}
            .page-intro:before{font-size:170px;right:-10px}
            h1{font-size:42px}
            .section{padding:60px 0}
            .section-head{display:block;margin-bottom:25px}
            .section-desc{margin-top:15px}
            .side-index{position:static}
            .steps{grid-template-columns:1fr}
            .cta-box{display:block;padding:30px}
            .cta-box .btn{margin-top:22px}
            .footer-grid{grid-template-columns:1fr 1fr;gap:30px}
            .footer-bottom{display:block}
            .footer-bottom span{display:block;margin-top:7px}
        }
        @media(max-width:520px){
            .brand-cn{font-size:17px}
            .brand-en{font-size:8px}
            h1{font-size:35px;letter-spacing:-.5px}
            .intro-copy{font-size:16px}
            .topic-grid,.footer-grid{grid-template-columns:1fr}
            .guide-content{padding:23px}
            .faq-list{padding:5px 18px}
            .section-title{font-size:28px}
        }

/* roulang page: category5 */
:root{
            --ink:#101315;
            --night:#171b1d;
            --panel:#202628;
            --panel-2:#282f30;
            --line:#394243;
            --text:#f3f1e9;
            --muted:#aab2ae;
            --soft:#d5d9d0;
            --mint:#b8f36b;
            --mint-deep:#8fca43;
            --orange:#f3a15f;
            --red:#db715d;
            --radius:14px;
            --shadow:0 18px 42px rgba(0,0,0,.22);
            --container:1200px;
        }
        *{box-sizing:border-box}
        html{scroll-behavior:smooth}
        body{
            margin:0;
            background:var(--ink);
            color:var(--text);
            font-family:"Noto Sans SC","Microsoft YaHei","PingFang SC",Arial,sans-serif;
            font-size:16px;
            line-height:1.7;
            -webkit-font-smoothing:antialiased;
        }
        a{color:inherit;text-decoration:none}
        a:hover{color:inherit}
        button,input{font:inherit}
        button{cursor:pointer}
        img{display:block;max-width:100%}
        .container{width:min(var(--container),calc(100% - 48px));margin:0 auto}
        .site-header{
            position:sticky;top:0;z-index:20;
            background:rgba(16,19,21,.96);
            border-bottom:1px solid var(--line);
            backdrop-filter:blur(12px);
        }
        .nav-wrap{height:76px;display:flex;align-items:center;justify-content:space-between;gap:28px}
        .brand{display:inline-flex;align-items:center;gap:11px;min-width:max-content}
        .brand-mark{
            width:34px;height:34px;border:2px solid var(--mint);border-radius:50%;
            position:relative;display:grid;place-items:center;color:var(--mint);font-size:13px;font-weight:800;
        }
        .brand-mark:after{
            content:"";position:absolute;width:46px;height:15px;border-top:1px solid var(--orange);
            border-radius:50%;transform:rotate(-28deg)
        }
        .brand-cn{font-size:19px;font-weight:800;letter-spacing:0}
        .brand-en{display:block;color:var(--muted);font-size:9px;line-height:1.1;letter-spacing:1.3px;margin-top:2px}
        .main-nav{display:flex;align-items:center;gap:5px}
        .main-nav a{
            color:var(--muted);font-size:14px;padding:10px 13px;border-radius:8px;
            transition:background .2s,color .2s,transform .2s;
        }
        .main-nav a:hover,.main-nav a.active{color:var(--text);background:#29302f}
        .main-nav a.active{box-shadow:inset 0 -2px var(--mint)}
        .menu-toggle{
            display:none;background:transparent;border:1px solid var(--line);color:var(--text);
            width:44px;height:42px;border-radius:8px
        }
        .page-hero{
            position:relative;overflow:hidden;
            padding:88px 0 82px;
            background:
                linear-gradient(110deg,rgba(23,27,29,.98),rgba(23,27,29,.86)),
                repeating-linear-gradient(125deg,transparent 0 80px,rgba(184,243,107,.06) 81px,transparent 82px 164px);
            border-bottom:1px solid var(--line);
        }
        .page-hero:after{
            content:"FAQ";position:absolute;right:7%;bottom:-35px;
            color:rgba(184,243,107,.06);font-size:150px;font-weight:900;letter-spacing:8px;
        }
        .page-hero-inner{position:relative;z-index:1;max-width:800px}
        .eyebrow,.section-kicker{
            display:flex;align-items:center;gap:10px;color:var(--mint);
            font-size:12px;font-weight:700;letter-spacing:1.8px;text-transform:uppercase
        }
        .eyebrow:before,.section-kicker:before{content:"";width:28px;height:2px;background:var(--orange)}
        h1,h2,h3,p{margin-top:0}
        h1{
            max-width:780px;margin:17px 0 20px;font-size:clamp(36px,5vw,64px);
            line-height:1.18;letter-spacing:-1px;font-weight:850
        }
        .hero-lead{max-width:720px;color:var(--soft);font-size:18px;line-height:1.9;margin-bottom:0}
        .crumbs{margin-top:28px;color:var(--muted);font-size:13px}
        .crumbs a{color:var(--mint)}
        .crumbs span{margin:0 8px;color:var(--line)}
        .section{padding:88px 0}
        .section-head{display:flex;align-items:end;justify-content:space-between;gap:30px;margin-bottom:34px}
        .section-title{font-size:34px;line-height:1.25;margin:12px 0 0;font-weight:800}
        .section-desc{max-width:560px;color:var(--muted);margin:0}
        .question-layout{display:grid;grid-template-columns:270px 1fr;gap:58px;align-items:start}
        .topic-index{
            position:sticky;top:105px;border-left:2px solid var(--line);padding-left:22px
        }
        .topic-index h2{font-size:18px;margin-bottom:18px}
        .topic-index a{
            display:block;color:var(--muted);padding:8px 0;font-size:14px;
            border-bottom:1px solid rgba(57,66,67,.65);transition:color .2s,padding .2s
        }
        .topic-index a:hover{color:var(--mint);padding-left:5px}
        .faq-group{margin-bottom:42px}
        .faq-group:last-child{margin-bottom:0}
        .faq-group-title{
            display:flex;align-items:center;gap:12px;font-size:20px;margin:0 0 15px;
            color:var(--soft)
        }
        .number{
            color:var(--mint);font-size:12px;font-weight:800;letter-spacing:1px;
            border:1px solid rgba(184,243,107,.35);padding:3px 7px;border-radius:5px
        }
        .faq-list{border-top:1px solid var(--line)}
        .faq-item{border-bottom:1px solid var(--line);background:var(--panel)}
        .faq-question{
            width:100%;min-height:68px;border:0;background:transparent;color:var(--text);
            display:flex;align-items:center;justify-content:space-between;gap:20px;
            text-align:left;padding:18px 22px;font-weight:750;transition:background .2s,color .2s
        }
        .faq-question:hover{background:var(--panel-2);color:var(--mint)}
        .faq-icon{
            flex:0 0 24px;width:24px;height:24px;border:1px solid var(--line);
            border-radius:50%;display:grid;place-items:center;color:var(--mint);font-size:19px;
            line-height:1;transition:transform .2s,background .2s
        }
        .faq-item.open .faq-icon{transform:rotate(45deg);background:rgba(184,243,107,.1)}
        .faq-answer{display:none;padding:0 66px 22px 22px;color:var(--muted);font-size:15px}
        .faq-item.open .faq-answer{display:block}
        .tips-section{background:#171b1d;border-top:1px solid var(--line);border-bottom:1px solid var(--line);padding:76px 0}
        .tips-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
        .tip-card{
            background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);
            padding:25px;min-height:185px;transition:transform .2s,border-color .2s,box-shadow .2s
        }
        .tip-card:hover{transform:translateY(-4px);border-color:#65716c;box-shadow:var(--shadow)}
        .tip-card .tip-no{color:var(--orange);font-size:12px;font-weight:800;letter-spacing:1.5px}
        .tip-card h3{font-size:19px;margin:18px 0 9px}
        .tip-card p{color:var(--muted);font-size:14px;margin-bottom:0}
        .notice{
            display:flex;align-items:flex-start;gap:15px;padding:22px 24px;
            margin-top:34px;background:rgba(243,161,95,.08);
            border:1px solid rgba(243,161,95,.35);border-radius:var(--radius)
        }
        .notice-mark{
            width:25px;height:25px;flex:0 0 25px;display:grid;place-items:center;
            border:1px solid var(--orange);border-radius:50%;color:var(--orange);font-weight:800
        }
        .notice strong{display:block;margin-bottom:3px;color:var(--soft)}
        .notice p{color:var(--muted);font-size:14px;margin:0}
        .cta-section{padding:82px 0}
        .cta-box{
            position:relative;overflow:hidden;display:flex;align-items:center;
            justify-content:space-between;gap:32px;padding:42px 46px;
            background:var(--panel);border:1px solid var(--line);border-radius:var(--radius)
        }
        .cta-box:after{
            content:"?";position:absolute;right:50px;bottom:-48px;color:rgba(184,243,107,.08);
            font-size:190px;font-weight:900;line-height:1
        }
        .cta-content{position:relative;z-index:1}
        .cta-content h2{font-size:30px;line-height:1.3;margin:10px 0 10px}
        .cta-content p{color:var(--muted);margin:0;max-width:610px}
        .cta-actions{position:relative;z-index:1;display:flex;flex-wrap:wrap;gap:12px}
        .btn{
            min-height:48px;display:inline-flex;align-items:center;justify-content:center;gap:10px;
            padding:0 20px;border:1px solid transparent;border-radius:9px;font-weight:750;
            font-size:14px;transition:transform .2s,background .2s,border-color .2s,box-shadow .2s
        }
        .btn:hover{transform:translateY(-2px)}
        .btn:focus-visible,.main-nav a:focus-visible,.faq-question:focus-visible{
            outline:3px solid var(--orange);outline-offset:3px
        }
        .btn-primary{background:var(--mint);color:var(--ink);box-shadow:0 8px 20px rgba(184,243,107,.12)}
        .btn-primary:hover{background:#ccff86;color:var(--ink);box-shadow:0 12px 28px rgba(184,243,107,.2)}
        .btn-secondary{background:#202627;border-color:#56605e;color:var(--text)}
        .btn-secondary:hover{border-color:var(--mint);background:#293130}
        .site-footer{padding:62px 0 24px;background:#0d1011;border-top:1px solid var(--line)}
        .footer-grid{display:grid;grid-template-columns:1.7fr 1fr 1fr 1fr;gap:42px;padding-bottom:48px}
        .footer-brand p{max-width:330px;color:var(--muted);font-size:14px;margin:20px 0 0}
        .footer-col{display:flex;flex-direction:column;align-items:flex-start;gap:8px}
        .footer-col h3{font-size:14px;color:var(--soft);margin:3px 0 10px}
        .footer-col a{font-size:14px;color:var(--muted);transition:color .2s,transform .2s}
        .footer-col a:hover{color:var(--mint);transform:translateX(3px)}
        .footer-bottom{
            display:flex;align-items:center;justify-content:space-between;gap:20px;
            padding-top:21px;border-top:1px solid var(--line);color:#7e8985;font-size:12px
        }
        @media (max-width:1024px){
            .main-nav a{padding-left:9px;padding-right:9px;font-size:13px}
            .question-layout{grid-template-columns:220px 1fr;gap:38px}
            .footer-grid{grid-template-columns:1.4fr repeat(3,1fr);gap:25px}
        }
        @media (max-width:768px){
            .container{width:min(var(--container),calc(100% - 34px))}
            .nav-wrap{height:68px}
            .menu-toggle{display:block}
            .main-nav{
                display:none;position:absolute;left:17px;right:17px;top:76px;
                padding:10px;background:var(--panel);border:1px solid var(--line);
                border-radius:10px;box-shadow:var(--shadow);flex-direction:column;align-items:stretch
            }
            .main-nav.open{display:flex}
            .main-nav a{padding:12px 14px}
            .page-hero{padding:64px 0 58px}
            h1{font-size:42px}
            .hero-lead{font-size:16px}
            .section{padding:58px 0}
            .question-layout{display:block}
            .topic-index{position:static;margin-bottom:42px;padding:18px 0 0;border-left:0;border-top:2px solid var(--line)}
            .topic-index nav{display:grid;grid-template-columns:repeat(2,1fr);gap:0 18px}
            .tips-grid{grid-template-columns:1fr 1fr}
            .cta-box{display:block;padding:32px 26px}
            .cta-actions{margin-top:26px}
            .footer-grid{grid-template-columns:1fr 1fr}
            .footer-brand{grid-column:1/-1}
        }
        @media (max-width:520px){
            .container{width:calc(100% - 28px)}
            .brand-cn{font-size:17px}
            .brand-en{font-size:8px}
            h1{font-size:34px;letter-spacing:-.5px}
            .page-hero:after{font-size:85px;right:-8px}
            .section-title{font-size:28px}
            .section-head{display:block}
            .section-desc{margin-top:14px}
            .question-layout{margin-top:4px}
            .topic-index nav{display:block}
            .faq-question{padding:16px;font-size:14px}
            .faq-answer{padding:0 18px 19px 16px;font-size:14px}
            .tips-grid{grid-template-columns:1fr}
            .tip-card{min-height:0}
            .notice{padding:18px}
            .cta-content h2{font-size:25px}
            .cta-actions{display:grid}
            .cta-actions .btn{width:100%}
            .footer-grid{grid-template-columns:1fr}
            .footer-brand{grid-column:auto}
            .footer-bottom{display:block;line-height:1.8}
            .footer-bottom span{display:block}
            .footer-bottom span+span{margin-top:5px}
        }

/* roulang page: category4 */
:root{
            --ink:#101315;
            --night:#171b1d;
            --panel:#202628;
            --panel-2:#282f30;
            --line:#394243;
            --text:#f3f1e9;
            --muted:#aab2ae;
            --soft:#d5d9d0;
            --mint:#b8f36b;
            --mint-deep:#8fca43;
            --orange:#f3a15f;
            --red:#db715d;
            --radius:14px;
            --shadow:0 18px 42px rgba(0,0,0,.22);
            --container:1200px;
        }
        *{box-sizing:border-box}
        html{scroll-behavior:smooth}
        body{
            margin:0;background:var(--ink);color:var(--text);
            font-family:"Noto Sans SC","Microsoft YaHei","PingFang SC",Arial,sans-serif;
            font-size:16px;line-height:1.7;-webkit-font-smoothing:antialiased
        }
        a{color:inherit;text-decoration:none}
        img{display:block;max-width:100%}
        button,input{font:inherit}
        button{cursor:pointer}
        .container{width:min(var(--container),calc(100% - 48px));margin:0 auto}
        .site-header{position:sticky;top:0;z-index:20;background:rgba(16,19,21,.96);border-bottom:1px solid var(--line);backdrop-filter:blur(12px)}
        .nav-wrap{height:76px;display:flex;align-items:center;justify-content:space-between;gap:28px}
        .brand{display:inline-flex;align-items:center;gap:11px;min-width:max-content}
        .brand-mark{width:34px;height:34px;border:2px solid var(--mint);border-radius:50%;position:relative;display:grid;place-items:center;color:var(--mint);font-size:13px;font-weight:800}
        .brand-mark:after{content:"";position:absolute;width:46px;height:15px;border-top:1px solid var(--orange);border-radius:50%;transform:rotate(-28deg)}
        .brand-cn{font-size:19px;font-weight:800}
        .brand-en{display:block;color:var(--muted);font-size:9px;line-height:1.1;letter-spacing:1.3px;margin-top:2px}
        .main-nav{display:flex;align-items:center;gap:5px}
        .main-nav a{color:var(--muted);font-size:14px;padding:10px 13px;border-radius:8px;transition:.2s}
        .main-nav a:hover,.main-nav a.active{color:var(--text);background:#29302f}
        .main-nav a.active{box-shadow:inset 0 -2px var(--mint)}
        .menu-toggle{display:none;background:transparent;border:1px solid var(--line);color:var(--text);width:44px;height:42px;border-radius:8px}
        .page-intro{padding:82px 0 70px;background:var(--night);border-bottom:1px solid var(--line);position:relative;overflow:hidden}
        .page-intro:after{content:"APP";position:absolute;right:7%;bottom:-42px;color:rgba(184,243,107,.06);font-size:170px;font-weight:900;letter-spacing:-8px}
        .intro-grid{display:grid;grid-template-columns:1fr 390px;gap:70px;align-items:end;position:relative;z-index:1}
        .eyebrow,.section-kicker{display:flex;align-items:center;gap:10px;color:var(--mint);font-size:12px;font-weight:700;letter-spacing:1.8px}
        .eyebrow:before,.section-kicker:before{content:"";width:28px;height:2px;background:var(--orange)}
        h1{font-size:clamp(38px,5vw,64px);line-height:1.18;letter-spacing:-2px;margin:18px 0 20px;font-weight:850}
        .intro-copy{max-width:700px;color:var(--soft);font-size:18px;line-height:1.9;margin:0}
        .intro-note{border-left:3px solid var(--mint);padding:18px 20px;background:rgba(184,243,107,.06);color:var(--muted);font-size:14px}
        .section{padding:88px 0}
        .section-head{display:flex;align-items:end;justify-content:space-between;gap:30px;margin-bottom:34px}
        .section-title{font-size:34px;line-height:1.25;margin:12px 0 0;font-weight:800}
        .section-desc{max-width:540px;color:var(--muted);margin:0}
        .download-panel{display:grid;grid-template-columns:310px 1fr;gap:56px;align-items:center;background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);padding:42px;box-shadow:var(--shadow)}
        .device-stage{min-height:390px;background:#151a1b;border:1px solid #424b48;border-radius:22px;display:flex;align-items:center;justify-content:center;position:relative;overflow:hidden}
        .device-stage:before,.device-stage:after{content:"";position:absolute;border:1px solid rgba(184,243,107,.22);border-radius:50%;width:310px;height:130px;transform:rotate(-30deg)}
        .device-stage:after{width:370px;height:165px;border-color:rgba(243,161,95,.2)}
        .phone{width:168px;height:300px;border:7px solid #3d4644;border-radius:24px;background:#252e2d;position:relative;z-index:1;box-shadow:0 15px 30px rgba(0,0,0,.35);padding:27px 14px 15px}
        .phone:before{content:"";position:absolute;top:9px;left:50%;transform:translateX(-50%);width:48px;height:5px;border-radius:5px;background:#121616}
        .phone-top{font-size:9px;color:var(--mint);letter-spacing:1px}
        .phone-score{margin-top:22px;height:74px;background:#18201e;border-left:3px solid var(--orange);padding:10px;font-size:11px}
        .phone-line{height:8px;background:#58615c;margin:10px 0;border-radius:3px}
        .phone-line.short{width:58%;background:var(--mint)}
        .download-copy h2{font-size:31px;line-height:1.3;margin:0 0 16px}
        .download-copy>p{color:var(--muted);max-width:600px}
        .tag{display:inline-flex;width:max-content;padding:4px 9px;border-radius:5px;background:rgba(184,243,107,.12);color:var(--mint);font-size:12px;font-weight:750}
        .tag.orange{background:rgba(243,161,95,.13);color:var(--orange)}
        .action-row{display:flex;flex-wrap:wrap;gap:12px;margin:27px 0}
        .btn{min-height:48px;display:inline-flex;align-items:center;justify-content:center;gap:10px;padding:0 20px;border:1px solid transparent;border-radius:9px;font-weight:750;font-size:14px;transition:.2s}
        .btn:hover{transform:translateY(-2px)}
        .btn:focus-visible,.main-nav a:focus-visible,.faq-question:focus-visible{outline:3px solid var(--orange);outline-offset:3px}
        .btn-primary{background:var(--mint);color:var(--ink);box-shadow:0 8px 20px rgba(184,243,107,.12)}
        .btn-primary:hover{background:#ccff86}
        .btn-secondary{background:#202627;border-color:#56605e;color:var(--text)}
        .btn-secondary:hover{border-color:var(--mint);background:#293130}
        .security-line{color:var(--muted);font-size:13px;border-top:1px solid var(--line);padding-top:18px}
        .steps{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
        .step{padding:27px;background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);min-height:190px;transition:.2s}
        .step:hover{transform:translateY(-4px);border-color:#68736d;box-shadow:var(--shadow)}
        .step-no{color:var(--orange);font-size:13px;font-weight:800;letter-spacing:2px}
        .step h3{font-size:20px;margin:18px 0 8px}
        .step p{color:var(--muted);font-size:14px;margin:0}
        .compatibility{display:grid;grid-template-columns:1.1fr .9fr;gap:20px}
        .compat-card{background:var(--panel-2);border:1px solid var(--line);border-radius:var(--radius);padding:30px}
        .compat-card h3{margin:0 0 15px;font-size:22px}
        .check-list{list-style:none;padding:0;margin:0}
        .check-list li{padding:12px 0;border-bottom:1px solid var(--line);color:var(--soft)}
        .check-list li:last-child{border-bottom:0}
        .check-list li:before{content:"✓";color:var(--mint);font-weight:800;margin-right:12px}
        .qr-box{height:166px;border:1px dashed #69746d;display:grid;place-items:center;text-align:center;color:var(--muted);font-size:13px;background:#1b2020}
        .faq-list{border-top:1px solid var(--line)}
        .faq-item{border-bottom:1px solid var(--line)}
        .faq-question{width:100%;display:flex;justify-content:space-between;align-items:center;text-align:left;border:0;background:none;color:var(--text);padding:22px 4px;font-weight:750}
        .faq-question span:last-child{color:var(--mint);font-size:22px;transition:.2s}
        .faq-answer{display:none;color:var(--muted);padding:0 44px 22px 4px;font-size:14px}
        .faq-item.open .faq-answer{display:block}
        .faq-item.open .faq-question span:last-child{transform:rotate(45deg)}
        .cta{background:var(--mint);color:var(--ink);padding:42px 48px;border-radius:var(--radius);display:flex;align-items:center;justify-content:space-between;gap:30px}
        .cta h2{margin:0;font-size:30px;line-height:1.3}
        .cta p{margin:8px 0 0;color:#33422b}
        .cta .btn-secondary{color:var(--ink);border-color:#4d693c;background:transparent}
        .site-footer{background:#15191a;border-top:1px solid var(--line);padding:62px 0 22px}
        .footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:38px}
        .footer-brand p{max-width:330px;color:var(--muted);font-size:14px;margin-top:20px}
        .footer-col{display:flex;flex-direction:column;gap:9px}
        .footer-col h3{font-size:15px;margin:0 0 8px}
        .footer-col a{color:var(--muted);font-size:14px;transition:.2s}
        .footer-col a:hover{color:var(--mint);padding-left:3px}
        .footer-bottom{border-top:1px solid var(--line);margin-top:42px;padding-top:18px;display:flex;justify-content:space-between;gap:18px;color:#7f8984;font-size:12px}
        @media(max-width:1024px){
            .main-nav a{padding:9px 8px;font-size:13px}
            .intro-grid{grid-template-columns:1fr 300px;gap:35px}
            .download-panel{grid-template-columns:260px 1fr;gap:35px;padding:30px}
            .footer-grid{grid-template-columns:1.4fr repeat(3,1fr)}
        }
        @media(max-width:768px){
            .container{width:min(var(--container),calc(100% - 32px))}
            .nav-wrap{height:68px}
            .menu-toggle{display:block}
            .main-nav{display:none;position:absolute;top:68px;left:0;right:0;background:#15191a;border-bottom:1px solid var(--line);padding:10px 16px;flex-direction:column;align-items:stretch}
            .main-nav.show{display:flex}
            .main-nav a{padding:12px 14px}
            .page-intro{padding:60px 0 52px}
            .intro-grid,.download-panel,.compatibility{grid-template-columns:1fr}
            .intro-note{margin-top:10px}
            h1{font-size:42px;letter-spacing:-1px}
            .section{padding:60px 0}
            .section-head{display:block}
            .section-desc{margin-top:14px}
            .download-panel{padding:22px}
            .device-stage{min-height:350px}
            .steps{grid-template-columns:1fr}
            .step{min-height:auto}
            .cta{display:block;padding:30px 24px}
            .cta .btn{margin-top:22px}
            .footer-grid{grid-template-columns:1fr 1fr}
            .footer-brand{grid-column:1/-1}
            .footer-bottom{display:block}
            .footer-bottom span{display:block;margin-bottom:6px}
        }
        @media(max-width:520px){
            h1{font-size:34px}
            .intro-copy{font-size:16px}
            .download-copy h2{font-size:26px}
            .action-row .btn{width:100%}
            .footer-grid{grid-template-columns:1fr}
        }

/* roulang: framework shim */
/* 覆盖 Bootstrap 等对 a/btn 的全局默认，避免导航出现下划线/蓝链 */
.site-header a,.site-header a:hover,.navbar a,.navbar a:hover,.nav-links a,.nav-links a:hover,header nav a,header nav a:hover{text-decoration:none}
.site-header .btn,.navbar .btn,.nav-cta{text-decoration:none}