/* roulang page: index */
:root{
            --lime:#b8e83e;
            --lime-deep:#8fbd18;
            --indigo:#5146c9;
            --indigo-dark:#30286e;
            --ink:#202329;
            --muted:#727681;
            --paper:#fbfaf6;
            --white:#fff;
            --line:#e8e7e0;
            --soft:#f1f2eb;
            --dark:#171927;
            --radius:18px;
            --shadow:0 18px 45px rgba(35,38,43,.09);
            --max:1200px;
        }
        *{box-sizing:border-box;margin:0;padding:0}
        html{scroll-behavior:smooth}
        body{font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;color:var(--ink);background:var(--paper);line-height:1.75;font-size:16px}
        a{color:inherit;text-decoration:none}
        img{max-width:100%;display:block}
        button,input{font:inherit}
        button{cursor:pointer;border:0}
        :focus-visible{outline:3px solid var(--lime-deep);outline-offset:4px}
        .container{width:min(var(--max),calc(100% - 48px));margin:auto}
        .topline{height:5px;background:var(--lime)}
        .site-header{background:rgba(251,250,246,.96);border-bottom:1px solid var(--line);position:sticky;top:0;z-index:20}
        .nav-wrap{min-height:76px;display:flex;align-items:center;gap:28px}
        .brand{display:flex;align-items:center;gap:11px;min-width:230px}
        .brand-mark{width:38px;height:38px;border-radius:12px;background:var(--dark);color:var(--lime);display:grid;place-items:center;font-weight:800;letter-spacing:-1px}
        .brand-text{font-size:15px;font-weight:800;line-height:1.25;max-width:185px}
        .main-nav{display:flex;align-items:center;gap:21px;flex:1}
        .main-nav a{font-size:13px;color:#5e6169;position:relative;padding:25px 0;white-space:nowrap}
        .main-nav a:after{content:"";position:absolute;left:0;right:100%;bottom:17px;height:3px;border-radius:3px;background:var(--lime-deep);transition:.25s}
        .main-nav a:hover,.main-nav a.active{color:var(--ink)}
        .main-nav a:hover:after,.main-nav a.active:after{right:0}
        .btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:46px;padding:0 21px;border-radius:12px;font-weight:750;font-size:14px;transition:.25s ease;border:1px solid transparent}
        .btn-primary{background:var(--lime);color:#1a2410;box-shadow:0 8px 18px rgba(142,189,24,.19)}
        .btn-primary:hover{background:var(--lime-deep);transform:translateY(-2px);box-shadow:0 12px 24px rgba(142,189,24,.27)}
        .btn-ghost{border-color:#d9d9d0;background:var(--white);color:var(--ink)}
        .btn-ghost:hover{border-color:var(--lime-deep);background:#f4f9e8}
        .menu-toggle{display:none;background:none;font-size:24px;color:var(--ink)}
        .hero{padding:82px 0 48px;background:var(--paper);overflow:hidden}
        .hero-grid{display:grid;grid-template-columns:1.02fr .98fr;gap:70px;align-items:center}
        .eyebrow{display:inline-flex;align-items:center;gap:8px;color:var(--indigo);font-size:13px;font-weight:800;letter-spacing:.04em;margin-bottom:20px}
        .eyebrow i{width:8px;height:8px;border-radius:50%;background:var(--lime-deep);display:block}
        h1{font-size:clamp(36px,5vw,58px);line-height:1.17;letter-spacing:-.045em;margin-bottom:22px;max-width:680px}
        .hero-copy{font-size:18px;color:var(--muted);max-width:600px;line-height:1.85}
        .hero-actions{display:flex;gap:12px;margin:31px 0 35px;flex-wrap:wrap}
        .signal-row{display:flex;gap:25px;flex-wrap:wrap;border-top:1px solid var(--line);padding-top:21px}
        .signal{display:flex;align-items:center;gap:9px;font-size:13px;color:var(--muted)}
        .signal b{color:var(--ink);font-size:14px}
        .dot{width:9px;height:9px;background:var(--lime-deep);border-radius:50%}
        .download-stage{background:var(--dark);border-radius:28px;padding:28px;min-height:430px;position:relative;box-shadow:var(--shadow);color:white;overflow:hidden}
        .download-stage:before{content:"";position:absolute;width:240px;height:240px;border-radius:50%;background:var(--indigo);right:-70px;top:-80px;opacity:.7}
        .stage-head,.device-area,.stage-bottom{position:relative;z-index:1}
        .stage-head{display:flex;justify-content:space-between;align-items:center}
        .stage-label{font-size:13px;color:#c9cad3}
        .status{font-size:12px;padding:6px 10px;border:1px solid rgba(184,232,62,.5);color:var(--lime);border-radius:20px}
        .device-area{display:flex;justify-content:center;align-items:center;height:265px}
        .phone{width:155px;height:265px;border:7px solid #353747;border-radius:28px;background:#f8f9ef;position:relative;box-shadow:0 14px 30px rgba(0,0,0,.3);padding:23px 13px;color:var(--ink)}
        .phone:before{content:"";position:absolute;top:7px;left:50%;transform:translateX(-50%);width:45px;height:5px;background:#292a38;border-radius:6px}
        .phone-logo{font-size:25px;font-weight:900;color:var(--indigo);margin-top:15px}
        .phone-line{height:9px;background:#dedfd7;border-radius:5px;margin-top:15px}
        .phone-line.short{width:64%;margin-top:8px}
        .phone-button{height:35px;background:var(--lime);border-radius:9px;margin-top:27px}
        .stage-bottom{display:grid;grid-template-columns:1fr 1fr;gap:12px}
        .stage-info{border-top:1px solid #3b3c4b;padding-top:13px}
        .stage-info span{display:block;font-size:12px;color:#9a9ca9}
        .stage-info strong{font-size:14px}
        .section{padding:92px 0}
        .section-head{display:flex;justify-content:space-between;align-items:end;gap:25px;margin-bottom:35px}
        .kicker{color:var(--indigo);font-size:13px;font-weight:800;margin-bottom:10px}
        h2{font-size:clamp(28px,3.3vw,40px);line-height:1.25;letter-spacing:-.035em}
        .section-intro{color:var(--muted);max-width:490px}
        .quick-links{display:grid;grid-template-columns:1.25fr 1fr 1fr 1fr;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
        .quick-link{padding:25px 22px;display:flex;align-items:center;gap:15px;border-right:1px solid var(--line);transition:.25s}
        .quick-link:last-child{border:0}
        .quick-link:hover{background:var(--white);color:var(--indigo)}
        .quick-num{color:var(--lime-deep);font-size:13px;font-weight:800}
        .quick-link strong{font-size:15px}
        .steps-section{background:var(--white)}
        .steps-layout{display:grid;grid-template-columns:1fr .78fr;gap:75px;align-items:start}
        .steps-list{border-left:2px solid #dedfd7}
        .step{position:relative;padding:0 0 33px 31px}
        .step:last-child{padding-bottom:0}
        .step:before{content:"";position:absolute;left:-10px;top:2px;width:18px;height:18px;background:var(--lime);border:4px solid var(--white);border-radius:50%;box-shadow:0 0 0 1px var(--lime-deep)}
        .step-number{color:var(--indigo);font-size:12px;font-weight:800}
        h3{font-size:20px;line-height:1.35;margin:5px 0 7px}
        .step p,.path-card p,.faq-answer{color:var(--muted);font-size:14px}
        .side-download{background:#f4f5ed;border-radius:22px;padding:30px;position:sticky;top:105px}
        .side-download h3{font-size:24px}
        .qr-box{width:112px;height:112px;background:#fff;border:1px dashed #bbbdb0;border-radius:12px;display:grid;place-items:center;color:#979a8e;font-size:12px;text-align:center;margin:22px 0}
        .path-section{background:#f1f2eb}
        .path-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
        .path-card{background:var(--white);padding:27px;border-radius:var(--radius);border:1px solid var(--line);min-height:190px;transition:.25s}
        .path-card:hover{border-color:#c8d98b;transform:translateY(-3px);box-shadow:var(--shadow)}
        .path-card .path-icon{width:42px;height:42px;border-radius:12px;background:#ecebff;color:var(--indigo);display:grid;place-items:center;font-weight:800;margin-bottom:19px}
        .path-card a{display:inline-block;margin-top:18px;color:var(--indigo);font-size:13px;font-weight:800}
        .updates{background:var(--white)}
        .updates-layout{display:grid;grid-template-columns:.82fr 1.18fr;gap:60px}
        .update-feature{background:var(--dark);color:white;border-radius:22px;padding:31px;min-height:255px;display:flex;flex-direction:column;justify-content:space-between}
        .update-feature .tag{color:var(--lime)}
        .update-feature h3{font-size:25px;max-width:450px}
        .update-feature p{font-size:14px;color:#bdc0ca}
        .tag{font-size:12px;font-weight:800;color:var(--indigo)}
        .update-list{border-top:1px solid var(--line)}
        .update-item{display:grid;grid-template-columns:105px 1fr 72px;gap:18px;align-items:center;padding:18px 0;border-bottom:1px solid var(--line)}
        .update-time{font-size:12px;color:var(--muted)}
        .update-item h3{font-size:16px;margin:0}
        .update-item p{font-size:13px;color:var(--muted);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
        .arrow{color:var(--indigo);font-size:20px;text-align:right}
        .guide{background:var(--paper)}
        .guide-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
        .guide-card{padding:24px 0;border-top:3px solid var(--lime-deep)}
        .guide-card strong{display:block;font-size:18px;margin-bottom:8px}
        .guide-card p{color:var(--muted);font-size:14px}
        .faq-list{max-width:850px;margin:auto;border-top:1px solid var(--line)}
        .faq-item{border-bottom:1px solid var(--line)}
        .faq-q{width:100%;background:none;padding:20px 3px;display:flex;justify-content:space-between;text-align:left;font-weight:750;color:var(--ink)}
        .faq-q span:last-child{font-size:22px;color:var(--indigo);transition:.25s}
        .faq-item.open .faq-q span:last-child{transform:rotate(45deg)}
        .faq-answer{display:none;padding:0 35px 21px 3px;line-height:1.85}
        .faq-item.open .faq-answer{display:block}
        .cta{padding:25px 0 92px}
        .cta-box{background:var(--indigo);border-radius:24px;padding:46px 52px;color:white;display:flex;align-items:center;justify-content:space-between;gap:30px}
        .cta-box h2{max-width:650px}
        .cta-box p{color:#d9d7f4;margin-top:9px}
        .site-footer{background:var(--dark);color:white;padding:54px 0 22px}
        .footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:35px;padding-bottom:45px}
        .footer-brand{color:#c9cad3;font-size:13px;margin-top:17px;max-width:270px}
        .footer-title{font-weight:800;margin-bottom:14px}
        .footer-links{display:flex;flex-direction:column;gap:8px;color:#aaacb8;font-size:13px}
        .footer-links a:hover{color:var(--lime)}
        .footer-bottom{border-top:1px solid #353644;padding-top:20px;display:flex;justify-content:space-between;gap:20px;color:#898b99;font-size:12px}
        .empty-state{padding:30px;border:1px dashed #c9cbc0;border-radius:16px;color:var(--muted);text-align:center}
        @media(max-width:1050px){
            .main-nav{gap:12px}.main-nav a{font-size:12px}.brand{min-width:205px}
            .hero-grid{gap:35px}.steps-layout{gap:35px}
        }
        @media(max-width:768px){
            .container{width:min(var(--max),calc(100% - 32px))}
            .nav-wrap{min-height:67px;justify-content:space-between}.brand{min-width:0}.brand-text{font-size:13px;max-width:165px}
            .main-nav{display:none;position:absolute;left:16px;right:16px;top:72px;background:var(--white);padding:12px 18px;box-shadow:var(--shadow);border:1px solid var(--line);border-radius:16px;flex-direction:column;align-items:stretch;gap:0}
            .main-nav.show{display:flex}.main-nav a{padding:10px 0}.main-nav a:after{bottom:4px}.header-cta{display:none}.menu-toggle{display:block}
            .hero{padding:55px 0 35px}.hero-grid,.steps-layout,.updates-layout{grid-template-columns:1fr}
            .download-stage{min-height:390px}.section{padding:64px 0}.section-head{display:block}.section-intro{margin-top:13px}
            .quick-links{grid-template-columns:1fr 1fr}.quick-link:nth-child(2){border-right:0}.quick-link{border-bottom:1px solid var(--line);padding:18px 12px}
            .path-grid,.guide-grid{grid-template-columns:1fr}.side-download{position:static}.update-feature{min-height:220px}
            .cta-box{padding:34px 25px;display:block}.cta-box .btn{margin-top:23px}.footer-grid{grid-template-columns:1fr 1fr}
        }
        @media(max-width:520px){
            h1{font-size:34px}.hero-copy{font-size:16px}.hero-actions .btn{width:100%}.signal-row{gap:12px;display:grid;grid-template-columns:1fr 1fr}
            .quick-links{grid-template-columns:1fr}.quick-link,.quick-link:nth-child(2){border-right:0}.quick-link:last-child{border-bottom:0}
            .download-stage{padding:21px}.device-area{height:245px}.update-item{grid-template-columns:70px 1fr 20px;gap:10px}.update-item p{display:none}
            .footer-grid{grid-template-columns:1fr}.footer-bottom{display:block}.footer-bottom span{display:block;margin-top:8px}
        }

/* roulang page: article */
:root{
            --lime:#b8e83e;
            --lime-deep:#8fbd18;
            --indigo:#5146c9;
            --indigo-dark:#30286e;
            --ink:#202329;
            --muted:#727681;
            --paper:#fbfaf6;
            --white:#fff;
            --line:#e8e7e0;
            --soft:#f1f2eb;
            --dark:#171927;
            --radius:18px;
            --shadow:0 18px 45px rgba(35,38,43,.09);
            --max:1200px;
        }
        *{box-sizing:border-box}
        html{scroll-behavior:smooth}
        body{
            margin:0;
            color:var(--ink);
            background:var(--paper);
            font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
            font-size:16px;
            line-height:1.75;
        }
        a{color:inherit;text-decoration:none}
        a:hover{color:var(--indigo)}
        img{display:block;max-width:100%;height:auto}
        button,input{font:inherit}
        button{cursor:pointer;border:0}
        :focus-visible{outline:3px solid rgba(81,70,201,.4);outline-offset:3px}
        .container{width:min(var(--max),calc(100% - 48px));margin:0 auto}
        .site-header{
            position:sticky;
            top:0;
            z-index:30;
            background:rgba(251,250,246,.96);
            border-bottom:1px solid var(--line);
        }
        .nav-wrap{min-height:76px;display:flex;align-items:center;gap:28px}
        .brand{display:flex;align-items:center;gap:11px;min-width:230px}
        .brand-mark{
            width:38px;height:38px;border-radius:12px;background:var(--dark);
            color:var(--lime);display:grid;place-items:center;font-weight:800;letter-spacing:-1px;
        }
        .brand-text{font-size:15px;font-weight:800;line-height:1.25;max-width:185px}
        .main-nav{display:flex;align-items:center;gap:21px;flex:1}
        .main-nav a{
            position:relative;padding:25px 0;white-space:nowrap;
            color:#5e6169;font-size:13px;
        }
        .main-nav a:after{
            content:"";position:absolute;left:0;right:100%;bottom:17px;height:3px;
            border-radius:3px;background:var(--lime-deep);transition:.25s ease;
        }
        .main-nav a:hover,.main-nav a.active{color:var(--ink)}
        .main-nav a:hover:after,.main-nav a.active:after{right:0}
        .btn{
            min-height:46px;padding:0 21px;border-radius:12px;border:1px solid transparent;
            display:inline-flex;align-items:center;justify-content:center;gap:8px;
            font-size:14px;font-weight:750;transition:.25s ease;
        }
        .btn-primary{
            color:#1a2410;background:var(--lime);
            box-shadow:0 8px 18px rgba(142,189,24,.19);
        }
        .btn-primary:hover{
            color:#14200b;background:var(--lime-deep);transform:translateY(-2px);
            box-shadow:0 12px 24px rgba(142,189,24,.27);
        }
        .btn-ghost{color:var(--ink);background:var(--white);border-color:#d9d9d0}
        .btn-ghost:hover{color:var(--ink);border-color:var(--lime-deep);background:#f4f9e8}
        .menu-toggle{display:none;background:none;color:var(--ink);font-size:24px}
        .article-hero{
            padding:55px 0 48px;
            background:var(--paper);
            border-bottom:1px solid var(--line);
        }
        .breadcrumbs{
            display:flex;align-items:center;gap:10px;flex-wrap:wrap;
            margin-bottom:30px;color:var(--muted);font-size:13px;
        }
        .breadcrumbs a{color:var(--indigo);font-weight:700}
        .crumb-sep{color:#b1b2aa}
        .article-head{max-width:900px}
        .eyebrow{
            display:inline-flex;align-items:center;gap:8px;
            color:var(--indigo);font-size:13px;font-weight:800;letter-spacing:.04em;
            margin-bottom:17px;
        }
        .eyebrow i{width:8px;height:8px;border-radius:50%;display:block;background:var(--lime-deep)}
        h1,h2,h3,p{margin-top:0}
        h1{
            margin-bottom:20px;
            color:var(--ink);
            font-size:clamp(32px,5vw,54px);
            font-weight:800;letter-spacing:-.035em;line-height:1.22;
        }
        .article-summary{
            max-width:780px;margin-bottom:25px;
            color:var(--muted);font-size:18px;line-height:1.85;
        }
        .article-meta{display:flex;align-items:center;gap:12px;flex-wrap:wrap;color:var(--muted);font-size:13px}
        .meta-tag{
            display:inline-flex;align-items:center;min-height:27px;padding:0 11px;
            border-radius:20px;color:var(--indigo);background:#ecebff;font-weight:750;
        }
        .reading-layout{
            display:grid;grid-template-columns:minmax(0,790px) 270px;
            gap:80px;align-items:start;padding:72px 0 90px;
        }
        .article-content{
            min-width:0;padding:0 0 30px;
            font-size:17px;line-height:2;
        }
        .article-content>*:first-child{margin-top:0}
        .article-content h2{
            margin:42px 0 17px;font-size:30px;line-height:1.35;
            letter-spacing:-.02em;
        }
        .article-content h3{
            margin:31px 0 12px;font-size:22px;line-height:1.45;
        }
        .article-content p{margin-bottom:22px}
        .article-content ul,.article-content ol{padding-left:1.6em;margin:0 0 25px}
        .article-content li{padding-left:5px;margin:6px 0}
        .article-content blockquote{
            margin:30px 0;padding:20px 24px;border-left:4px solid var(--lime-deep);
            border-radius:0 13px 13px 0;background:var(--soft);color:#4d5159;
        }
        .article-content img{margin:30px auto;border-radius:16px}
        .article-content table{
            width:100%;margin:26px 0;border-collapse:collapse;background:var(--white);
            border:1px solid var(--line);font-size:15px;
        }
        .article-content th,.article-content td{padding:12px 15px;border:1px solid var(--line);text-align:left}
        .article-content th{background:var(--soft);font-weight:800}
        .article-content a{color:var(--indigo);text-decoration:underline;text-decoration-color:#c8c4f4;text-underline-offset:3px}
        .article-content hr{margin:38px 0;border:0;border-top:1px solid var(--line)}
        .article-sidebar{position:sticky;top:106px}
        .side-card{
            padding:23px;border:1px solid var(--line);border-radius:var(--radius);
            background:var(--white);box-shadow:0 8px 25px rgba(35,38,43,.04);
        }
        .side-card+.side-card{margin-top:17px}
        .side-title{margin-bottom:14px;font-size:15px;font-weight:800}
        .side-card p{margin-bottom:17px;color:var(--muted);font-size:13px;line-height:1.75}
        .side-links{display:grid;gap:11px}
        .side-links a{
            padding-bottom:10px;border-bottom:1px solid var(--line);
            color:#5e6169;font-size:13px;font-weight:700;
        }
        .side-links a:last-child{padding-bottom:0;border-bottom:0}
        .side-links a:hover{color:var(--indigo)}
        .article-cta{
            display:flex;justify-content:space-between;align-items:center;gap:24px;
            margin:13px 0 36px;padding:25px 28px;border-radius:18px;
            background:var(--dark);color:var(--white);
        }
        .article-cta strong{display:block;margin-bottom:4px;font-size:18px}
        .article-cta span{color:#c4c6cf;font-size:13px}
        .article-cta .btn{flex:none}
        .empty-state{
            padding:70px 25px;text-align:center;border:1px dashed #cfd1c6;
            border-radius:22px;background:var(--white);
        }
        .empty-icon{
            width:54px;height:54px;margin:0 auto 18px;border-radius:17px;
            display:grid;place-items:center;color:var(--indigo);background:#ecebff;font-size:24px;
        }
        .empty-state h2{margin-bottom:9px;font-size:25px}
        .empty-state p{margin-bottom:22px;color:var(--muted)}
        .article-footer-nav{
            display:flex;justify-content:space-between;gap:16px;
            padding-top:28px;border-top:1px solid var(--line);
        }
        .back-link{color:var(--indigo);font-size:14px;font-weight:800}
        .cta{padding:0 0 92px}
        .cta-box{
            display:flex;align-items:center;justify-content:space-between;gap:30px;
            padding:35px 40px;border-radius:22px;background:var(--lime);
        }
        .cta-box h2{margin-bottom:8px;font-size:28px;line-height:1.3}
        .cta-box p{margin:0;color:#465126;font-size:14px}
        .cta-box .btn{background:var(--dark);color:var(--lime);box-shadow:none}
        .cta-box .btn:hover{background:#292b40}
        .site-footer{padding:58px 0 24px;background:var(--dark);color:#fff}
        .footer-grid{display:grid;grid-template-columns:1.7fr 1fr 1fr 1.2fr;gap:35px;padding-bottom:42px}
        .site-footer .brand{min-width:0}
        .site-footer .brand-text{color:#fff}
        .footer-brand{max-width:260px;margin:18px 0 0;color:#aeb1be;font-size:13px;line-height:1.8}
        .footer-title{margin-bottom:15px;color:var(--lime);font-size:13px;font-weight:800}
        .footer-links{display:grid;gap:9px;color:#b9bbc5;font-size:13px}
        .footer-links a:hover{color:var(--lime)}
        .footer-bottom{
            display:flex;justify-content:space-between;gap:15px;flex-wrap:wrap;
            padding-top:20px;border-top:1px solid #343646;color:#898c99;font-size:12px;
        }
        .footer-bottom a{color:#b9bbc5}
        @media (max-width:1100px){
            .nav-wrap{gap:18px}.main-nav{gap:14px}.brand{min-width:210px}
            .reading-layout{grid-template-columns:minmax(0,1fr) 235px;gap:40px}
        }
        @media (max-width:992px){
            .main-nav{display:none;position:absolute;left:24px;right:24px;top:76px;
                padding:13px 18px;flex-direction:column;align-items:stretch;gap:0;
                background:var(--white);border:1px solid var(--line);border-radius:0 0 16px 16px;
                box-shadow:var(--shadow)}
            .main-nav.show{display:flex}
            .main-nav a{padding:12px 3px;border-bottom:1px solid var(--line)}
            .main-nav a:last-child{border-bottom:0}
            .main-nav a:after{bottom:0}
            .menu-toggle{display:block}.header-cta{margin-left:auto}
            .reading-layout{display:block}.article-sidebar{position:static;margin-top:35px}
            .article-sidebar .side-card{display:inline-block;vertical-align:top;width:calc(50% - 10px);margin:0 15px 0 0}
            .article-sidebar .side-card:last-child{margin-right:0}
            .footer-grid{grid-template-columns:1.5fr 1fr 1fr}
            .footer-grid>div:last-child{grid-column:2 / 4}
        }
        @media (max-width:768px){
            .container{width:min(var(--max),calc(100% - 32px))}
            .article-hero{padding:38px 0 35px}
            .reading-layout{padding:50px 0 65px}
            .article-content{font-size:16px;line-height:1.9}
            .article-content h2{font-size:26px}
            .article-cta{align-items:flex-start;flex-direction:column}
            .article-cta .btn{width:100%}
            .cta{padding-bottom:64px}.cta-box{align-items:flex-start;flex-direction:column;padding:28px 25px}
            .cta-box .btn{width:100%}
            .footer-grid{grid-template-columns:1fr 1fr;gap:30px}
            .footer-grid>div:last-child{grid-column:auto}
        }
        @media (max-width:576px){
            .nav-wrap{min-height:68px}.main-nav{top:68px;left:16px;right:16px}
            .brand{min-width:0}.brand-text{font-size:13px;max-width:155px}
            .brand-mark{width:35px;height:35px}.header-cta{min-height:40px;padding:0 13px;font-size:13px}
            .menu-toggle{font-size:22px}
            h1{font-size:32px}.article-summary{font-size:16px}
            .breadcrumbs{margin-bottom:22px}
            .article-sidebar .side-card{display:block;width:100%;margin:0 0 15px}
            .article-footer-nav{display:block}.article-footer-nav .back-link{display:block;margin-bottom:13px}
            .footer-grid{grid-template-columns:1fr;gap:27px}
            .footer-grid>div:last-child{grid-column:auto}
            .footer-bottom{display:block}.footer-bottom span{display:block;margin-bottom:8px}
        }

/* roulang page: category1 */
:root{
            --lime:#b8e83e;
            --lime-deep:#8fbd18;
            --indigo:#5146c9;
            --indigo-dark:#30286e;
            --ink:#202329;
            --muted:#727681;
            --paper:#fbfaf6;
            --white:#fff;
            --line:#e8e7e0;
            --soft:#f1f2eb;
            --dark:#171927;
            --radius:18px;
            --shadow:0 18px 45px rgba(35,38,43,.09);
            --max:1200px;
        }
        *{box-sizing:border-box}
        html{scroll-behavior:smooth}
        body{margin:0;font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;color:var(--ink);background:var(--paper);line-height:1.75;font-size:16px}
        a{color:inherit;text-decoration:none}
        img{max-width:100%;display:block}
        button,input{font:inherit}
        button{cursor:pointer;border:0}
        h1,h2,h3,h4,p{margin-top:0}
        h1{font-size:clamp(34px,5vw,56px);line-height:1.2;letter-spacing:-.045em;font-weight:800;margin-bottom:22px}
        h2{font-size:clamp(28px,3.5vw,38px);line-height:1.25;letter-spacing:-.03em;font-weight:800;margin-bottom:14px}
        h3{font-size:21px;line-height:1.35;margin-bottom:10px;font-weight:800}
        .container{width:min(var(--max),calc(100% - 48px));margin:0 auto}
        .site-header{background:rgba(251,250,246,.96);border-bottom:1px solid var(--line);position:sticky;top:0;z-index:20}
        .nav-wrap{min-height:76px;display:flex;align-items:center;gap:28px}
        .brand{display:flex;align-items:center;gap:11px;min-width:230px}
        .brand-mark{width:38px;height:38px;border-radius:12px;background:var(--dark);color:var(--lime);display:grid;place-items:center;font-weight:800;letter-spacing:-1px;flex:none}
        .brand-text{font-size:15px;font-weight:800;line-height:1.25;max-width:185px}
        .main-nav{display:flex;align-items:center;gap:21px;flex:1}
        .main-nav a{font-size:13px;color:#5e6169;position:relative;padding:25px 0;white-space:nowrap}
        .main-nav a:after{content:"";position:absolute;left:0;right:100%;bottom:17px;height:3px;border-radius:3px;background:var(--lime-deep);transition:.25s}
        .main-nav a:hover,.main-nav a.active{color:var(--ink)}
        .main-nav a:hover:after,.main-nav a.active:after{right:0}
        .btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:46px;padding:0 21px;border-radius:12px;font-weight:750;font-size:14px;transition:.25s ease;border:1px solid transparent}
        .btn:focus-visible,.main-nav a:focus-visible,.faq-q:focus-visible,input:focus-visible{outline:3px solid rgba(81,70,201,.35);outline-offset:3px}
        .btn-primary{background:var(--lime);color:#1a2410;box-shadow:0 8px 18px rgba(142,189,24,.19)}
        .btn-primary:hover{background:var(--lime-deep);transform:translateY(-2px);box-shadow:0 12px 24px rgba(142,189,24,.27)}
        .btn-ghost{border-color:#d9d9d0;background:var(--white);color:var(--ink)}
        .btn-ghost:hover{border-color:var(--lime-deep);background:#f4f9e8}
        .menu-toggle{display:none;background:none;font-size:24px;color:var(--ink)}
        .hero{padding:76px 0 72px;background:var(--paper);overflow:hidden}
        .hero-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:70px;align-items:center}
        .eyebrow{display:inline-flex;align-items:center;gap:8px;color:var(--indigo);font-size:13px;font-weight:800;letter-spacing:.04em;margin-bottom:20px}
        .eyebrow i{width:8px;height:8px;border-radius:50%;background:var(--lime-deep);display:block}
        .hero-copy{font-size:18px;color:var(--muted);max-width:620px;line-height:1.85}
        .hero-actions{display:flex;gap:12px;margin:31px 0 35px;flex-wrap:wrap}
        .signal-row{display:flex;gap:25px;flex-wrap:wrap;border-top:1px solid var(--line);padding-top:21px}
        .signal{font-size:13px;color:var(--muted)}
        .signal strong{display:block;color:var(--ink);font-size:15px}
        .download-stage{background:var(--dark);border-radius:28px;padding:28px;min-height:430px;position:relative;box-shadow:var(--shadow);color:white;overflow:hidden}
        .download-stage:before{content:"";position:absolute;width:240px;height:240px;border-radius:50%;background:var(--indigo);right:-70px;top:-80px;opacity:.7}
        .stage-head,.device-area,.stage-bottom{position:relative;z-index:1}
        .stage-head{display:flex;justify-content:space-between;align-items:center}
        .stage-label{font-size:13px;color:#c9cad3}
        .status-badge{font-size:12px;color:#202329;background:var(--lime);padding:5px 10px;border-radius:20px;font-weight:800}
        .device-area{display:flex;justify-content:center;align-items:center;height:265px}
        .phone{width:166px;height:275px;border:7px solid #363746;border-radius:27px;background:#f7f8f2;box-shadow:0 14px 30px rgba(0,0,0,.3);padding:25px 15px;color:var(--ink);text-align:center}
        .phone-notch{width:48px;height:6px;border-radius:8px;background:#363746;margin:-14px auto 25px}
        .phone-mark{width:51px;height:51px;border-radius:16px;background:var(--dark);color:var(--lime);display:grid;place-items:center;margin:0 auto 12px;font-weight:900;font-size:20px}
        .phone-title{font-size:13px;font-weight:800}
        .phone-line{height:7px;background:#e7e9df;border-radius:8px;margin:14px 8px 0}
        .phone-button{height:35px;background:var(--lime);border-radius:9px;margin-top:27px}
        .stage-bottom{display:grid;grid-template-columns:1fr 1fr;gap:12px}
        .stage-info{border-top:1px solid #3b3c4b;padding-top:13px}
        .stage-info span{display:block;font-size:12px;color:#9a9ca9}
        .stage-info strong{font-size:14px}
        .section{padding:88px 0}
        .section-head{display:flex;justify-content:space-between;align-items:end;gap:25px;margin-bottom:35px}
        .section-intro{color:var(--muted);max-width:530px}
        .crumbs{padding-top:28px;font-size:13px;color:var(--muted)}
        .crumbs a{color:var(--indigo);font-weight:700}
        .guide-band{background:var(--white)}
        .guide-layout{display:grid;grid-template-columns:300px 1fr;gap:62px;align-items:start}
        .guide-menu{position:sticky;top:105px;border-left:2px solid var(--line)}
        .guide-menu a{display:block;padding:14px 20px;color:var(--muted);font-weight:700;border-left:3px solid transparent;margin-left:-2px;transition:.2s}
        .guide-menu a:hover,.guide-menu a.active{color:var(--indigo);border-left-color:var(--lime-deep);background:#f4f6e9}
        .guide-content{display:grid;gap:18px}
        .step-card{display:grid;grid-template-columns:66px 1fr;gap:22px;padding:25px 0;border-bottom:1px solid var(--line)}
        .step-number{width:52px;height:52px;border-radius:16px;background:#ecebff;color:var(--indigo);display:grid;place-items:center;font-weight:900;font-size:20px}
        .step-card p,.check-card p,.notice p,.faq-answer{color:var(--muted);font-size:15px;margin-bottom:0}
        .step-tip{display:inline-block;margin-top:12px;background:#f4f9e8;color:#5c761b;padding:5px 10px;border-radius:7px;font-size:12px;font-weight:800}
        .check-section{background:var(--soft)}
        .check-grid{display:grid;grid-template-columns:1fr 1fr;gap:18px}
        .check-card{background:var(--white);border:1px solid var(--line);border-radius:var(--radius);padding:27px;transition:.25s}
        .check-card:hover{border-color:#c8d98b;transform:translateY(-3px);box-shadow:var(--shadow)}
        .check-icon{width:42px;height:42px;border-radius:12px;background:var(--dark);color:var(--lime);display:grid;place-items:center;font-weight:900;margin-bottom:18px}
        .notice{display:flex;gap:18px;align-items:flex-start;background:#f3f0ff;border:1px solid #ddd9fb;border-radius:var(--radius);padding:23px;margin-top:25px}
        .notice-mark{color:var(--indigo);font-size:22px;font-weight:900;line-height:1}
        .version-panel{background:var(--dark);color:#fff;border-radius:24px;padding:34px;display:grid;grid-template-columns:1fr 1fr 1fr;gap:24px;box-shadow:var(--shadow)}
        .version-panel .eyebrow{color:var(--lime);margin-bottom:9px}
        .version-item{border-left:1px solid #3d3e4d;padding-left:20px}
        .version-item span{display:block;color:#aeb0bd;font-size:13px;margin-bottom:4px}
        .version-item strong{font-size:18px}
        .faq-section{background:var(--white)}
        .faq-list{max-width:900px;margin:auto;border-top:1px solid var(--line)}
        .faq-item{border-bottom:1px solid var(--line)}
        .faq-q{width:100%;background:none;padding:20px 3px;display:flex;justify-content:space-between;text-align:left;font-weight:750;color:var(--ink)}
        .faq-q span:last-child{font-size:22px;color:var(--indigo);transition:.25s}
        .faq-item.open .faq-q span:last-child{transform:rotate(45deg)}
        .faq-answer{display:none;padding:0 35px 21px 3px;line-height:1.85}
        .faq-item.open .faq-answer{display:block}
        .related{padding-top:70px}
        .related-row{display:flex;gap:15px;flex-wrap:wrap}
        .related-link{background:var(--white);border:1px solid var(--line);border-radius:12px;padding:15px 18px;color:var(--indigo);font-weight:750;transition:.2s}
        .related-link:hover{border-color:var(--lime-deep);background:#f4f9e8}
        .cta{padding:20px 0 92px}
        .cta-box{background:var(--lime);border-radius:24px;padding:38px 42px;display:flex;justify-content:space-between;align-items:center;gap:25px}
        .cta-box h2{margin-bottom:8px}
        .cta-box p{margin:0;color:#49531f}
        .cta-box .btn{background:var(--dark);color:#fff}
        .cta-box .btn:hover{background:var(--indigo-dark)}
        .site-footer{background:var(--dark);color:#fff;padding:58px 0 24px}
        .footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:32px;padding-bottom:42px}
        .site-footer .brand-text{color:#fff}
        .footer-brand{color:#aeb0bd;font-size:14px;max-width:260px;margin:20px 0 0}
        .footer-title{font-weight:800;margin-bottom:14px}
        .footer-links{display:grid;gap:8px;color:#aeb0bd;font-size:14px}
        .footer-links a:hover{color:var(--lime)}
        .footer-bottom{border-top:1px solid #343542;padding-top:19px;display:flex;justify-content:space-between;gap:20px;color:#898b98;font-size:12px}
        .footer-bottom a{color:#c7c9d1}
        @media(max-width:1100px){
            .main-nav{gap:13px}
            .main-nav a{font-size:12px}
            .hero-grid{gap:38px}
        }
        @media(max-width:992px){
            .header-cta{display:none}
            .menu-toggle{display:block;margin-left:auto}
            .main-nav{display:none;position:absolute;left:24px;right:24px;top:76px;background:var(--white);border:1px solid var(--line);box-shadow:var(--shadow);border-radius:14px;padding:10px;flex-direction:column;align-items:stretch;gap:0}
            .main-nav.open{display:flex}
            .main-nav a{padding:12px 14px}
            .main-nav a:after{display:none}
            .hero-grid,.guide-layout{grid-template-columns:1fr}
            .guide-menu{position:static;display:flex;overflow:auto;border-left:0;border-bottom:1px solid var(--line);white-space:nowrap}
            .guide-menu a{border-left:0;border-bottom:3px solid transparent;margin:0}
            .guide-menu a:hover,.guide-menu a.active{border-left:0;border-bottom-color:var(--lime-deep)}
        }
        @media(max-width:768px){
            .container{width:min(var(--max),calc(100% - 32px))}
            .hero{padding:52px 0 50px}
            .section{padding:62px 0}
            .section-head{display:block;margin-bottom:25px}
            .section-intro{margin-top:12px}
            .check-grid,.version-panel{grid-template-columns:1fr}
            .version-item{border-left:0;border-top:1px solid #3d3e4d;padding:16px 0 0}
            .cta-box{display:block;padding:30px 25px}
            .cta-box .btn{margin-top:22px;width:100%}
            .footer-grid{grid-template-columns:1fr 1fr}
            .footer-bottom{display:block}
            .footer-bottom span{display:block;margin-top:8px}
        }
        @media(max-width:520px){
            h1{font-size:34px}
            .hero-copy{font-size:16px}
            .hero-actions .btn{width:100%}
            .download-stage{padding:22px;min-height:390px}
            .device-area{height:235px}
            .phone{transform:scale(.88)}
            .step-card{grid-template-columns:48px 1fr;gap:14px}
            .step-number{width:42px;height:42px;font-size:17px}
            .footer-grid{grid-template-columns:1fr}
            .footer-bottom{font-size:11px}
        }

/* roulang page: article */
:root{
            --lime:#b8e83e;
            --lime-deep:#8fbd18;
            --indigo:#5146c9;
            --indigo-dark:#30286e;
            --ink:#202329;
            --muted:#727681;
            --paper:#fbfaf6;
            --white:#fff;
            --line:#e8e7e0;
            --soft:#f1f2eb;
            --dark:#171927;
            --radius:18px;
            --shadow:0 18px 45px rgba(35,38,43,.09);
            --max:1200px;
        }
        *{box-sizing:border-box}
        html{scroll-behavior:smooth}
        body{margin:0;background:var(--paper);color:var(--ink);font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif;font-size:16px;line-height:1.75}
        a{color:inherit;text-decoration:none}
        a:focus-visible,button:focus-visible{outline:3px solid var(--lime-deep);outline-offset:4px}
        img{max-width:100%;display:block}
        button,input{font:inherit}
        button{cursor:pointer;border:0}
        h1,h2,h3,p{margin-top:0}
        h1,h2,h3{line-height:1.3;letter-spacing:-.025em}
        h1{font-size:clamp(34px,5vw,56px);font-weight:800;margin-bottom:20px}
        h2{font-size:clamp(28px,3vw,38px);font-weight:800}
        h3{font-size:21px;font-weight:780}
        .container{width:min(var(--max),calc(100% - 48px));margin:auto}
        .site-header{position:sticky;top:0;z-index:20;background:rgba(251,250,246,.96);border-bottom:1px solid var(--line)}
        .nav-wrap{min-height:76px;display:flex;align-items:center;gap:28px}
        .brand{display:flex;align-items:center;gap:11px;min-width:230px}
        .brand-mark{width:38px;height:38px;border-radius:12px;background:var(--dark);color:var(--lime);display:grid;place-items:center;font-weight:900;letter-spacing:-1px}
        .brand-text{font-size:15px;font-weight:800;line-height:1.25;max-width:185px}
        .main-nav{display:flex;align-items:center;gap:21px;flex:1}
        .main-nav a{position:relative;padding:25px 0;color:#5e6169;font-size:13px;white-space:nowrap}
        .main-nav a:after{content:"";position:absolute;left:0;right:100%;bottom:17px;height:3px;border-radius:3px;background:var(--lime-deep);transition:.25s}
        .main-nav a:hover,.main-nav a.active{color:var(--ink)}
        .main-nav a:hover:after,.main-nav a.active:after{right:0}
        .btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:46px;padding:0 21px;border-radius:12px;font-size:14px;font-weight:780;border:1px solid transparent;transition:.25s ease}
        .btn-primary{background:var(--lime);color:#1a2410;box-shadow:0 8px 18px rgba(142,189,24,.19)}
        .btn-primary:hover{background:var(--lime-deep);transform:translateY(-2px);box-shadow:0 12px 24px rgba(142,189,24,.27)}
        .btn-ghost{background:var(--white);border-color:#d9d9d0;color:var(--ink)}
        .btn-ghost:hover{background:#f4f9e8;border-color:var(--lime-deep)}
        .menu-toggle{display:none;background:transparent;color:var(--ink);font-size:24px}
        .article-hero{padding:76px 0 58px;background:var(--white);border-bottom:1px solid var(--line)}
        .crumbs{display:flex;align-items:center;gap:10px;color:var(--muted);font-size:13px;margin-bottom:28px}
        .crumbs a:hover{color:var(--indigo)}
        .crumbs .current{color:var(--ink);max-width:430px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
        .article-kicker{display:inline-flex;align-items:center;gap:8px;color:var(--indigo);font-size:13px;font-weight:800;margin-bottom:18px}
        .article-kicker:before{content:"";width:8px;height:8px;border-radius:50%;background:var(--lime-deep)}
        .article-lead{max-width:760px;color:var(--muted);font-size:18px;line-height:1.85}
        .meta-row{display:flex;flex-wrap:wrap;gap:12px 24px;color:var(--muted);font-size:13px;margin-top:25px}
        .meta-row span{display:inline-flex;align-items:center;gap:7px}
        .meta-dot{width:6px;height:6px;border-radius:50%;background:var(--lime-deep)}
        .article-layout{display:grid;grid-template-columns:minmax(0,790px) 270px;gap:72px;align-items:start;padding:78px 0 96px}
        .article-content{min-width:0;background:var(--white);border:1px solid var(--line);border-radius:22px;padding:clamp(25px,5vw,58px);box-shadow:0 8px 30px rgba(35,38,43,.035)}
        .article-content h2{font-size:30px;margin:38px 0 16px;padding-top:12px;border-top:1px solid var(--line)}
        .article-content h3{font-size:22px;margin:30px 0 12px}
        .article-content p{color:#454952;line-height:2;margin-bottom:19px}
        .article-content ul,.article-content ol{padding-left:25px;color:#454952;margin:18px 0 25px}
        .article-content li{padding:5px 0}
        .article-content blockquote{margin:28px 0;padding:18px 22px;border-left:4px solid var(--lime-deep);background:#f5f8eb;color:#555c45;border-radius:0 12px 12px 0}
        .article-content img{border-radius:14px;margin:26px auto}
        .article-content table{width:100%;border-collapse:collapse;margin:25px 0;display:block;overflow-x:auto}
        .article-content th,.article-content td{border:1px solid var(--line);padding:11px 14px;text-align:left;white-space:nowrap}
        .article-content th{background:var(--soft)}
        .article-content hr{border:0;border-top:1px solid var(--line);margin:36px 0}
        .article-side{position:sticky;top:106px}
        .side-card{background:var(--dark);border-radius:20px;padding:25px;color:#fff;margin-bottom:18px}
        .side-card h3{font-size:18px;margin-bottom:18px}
        .side-card p{color:#bdc0ca;font-size:14px;line-height:1.8}
        .side-card .btn{width:100%;margin-top:12px}
        .side-index{background:var(--white);border:1px solid var(--line);border-radius:20px;padding:24px}
        .side-title{font-size:14px;font-weight:800;margin-bottom:14px}
        .side-index a{display:block;padding:9px 0;border-bottom:1px solid var(--line);font-size:13px;color:var(--muted)}
        .side-index a:last-child{border-bottom:0}
        .side-index a:hover{color:var(--indigo)}
        .article-empty{text-align:center;padding:65px 20px}
        .empty-icon{width:62px;height:62px;border-radius:20px;background:#ecebff;color:var(--indigo);display:grid;place-items:center;font-size:27px;margin:0 auto 18px}
        .article-empty p{color:var(--muted);margin-bottom:24px}
        .article-cta{display:flex;align-items:center;justify-content:space-between;gap:25px;margin-top:48px;padding:25px 28px;background:#f3f7e8;border:1px solid #dfe9bc;border-radius:17px}
        .article-cta strong{display:block;font-size:18px;margin-bottom:4px}
        .article-cta span{font-size:14px;color:var(--muted)}
        .site-footer{background:var(--dark);color:#fff;padding:66px 0 24px}
        .footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:35px}
        .footer-brand{color:#aeb1bd;font-size:13px;margin:20px 0 0;max-width:245px}
        .footer-title{font-size:14px;font-weight:800;margin:5px 0 15px;color:#fff}
        .footer-links{display:flex;flex-direction:column;gap:9px;color:#aeb1bd;font-size:13px}
        .footer-links a:hover{color:var(--lime)}
        .footer-bottom{display:flex;justify-content:space-between;gap:20px;border-top:1px solid #353644;margin-top:48px;padding-top:20px;color:#8e919e;font-size:12px}
        .footer-bottom a:hover{color:var(--lime)}
        @media(max-width:1100px){
            .main-nav{gap:13px}
            .main-nav a{font-size:12px}
            .article-layout{grid-template-columns:minmax(0,1fr) 235px;gap:35px}
        }
        @media(max-width:992px){
            .header-cta{display:none}
            .menu-toggle{display:block;margin-left:auto}
            .main-nav{display:none;position:absolute;left:24px;right:24px;top:76px;background:var(--white);border:1px solid var(--line);border-radius:0 0 16px 16px;padding:8px 20px;box-shadow:var(--shadow);flex-direction:column;align-items:stretch;gap:0}
            .main-nav.open{display:flex}
            .main-nav a{padding:13px 0;border-bottom:1px solid var(--line)}
            .main-nav a:last-child{border-bottom:0}
            .main-nav a:after{bottom:0}
            .article-layout{grid-template-columns:1fr;padding-top:55px}
            .article-side{position:static;display:grid;grid-template-columns:1fr 1fr;gap:18px}
            .side-card,.side-index{margin:0}
        }
        @media(max-width:768px){
            .container{width:min(var(--max),calc(100% - 32px))}
            .article-hero{padding:52px 0 42px}
            .article-layout{padding:42px 0 65px}
            .footer-grid{grid-template-columns:1fr 1fr}
            .footer-bottom{flex-direction:column;gap:8px}
        }
        @media(max-width:576px){
            .brand{min-width:0}
            .brand-text{font-size:13px;max-width:150px}
            .article-kicker{margin-bottom:13px}
            .article-lead{font-size:16px}
            .meta-row{gap:9px 15px}
            .article-content{padding:24px 20px;border-radius:17px}
            .article-content h2{font-size:25px}
            .article-content h3{font-size:20px}
            .article-cta{align-items:flex-start;flex-direction:column;padding:22px}
            .article-cta .btn{width:100%}
            .article-side{display:flex;flex-direction:column}
            .footer-grid{grid-template-columns:1fr;gap:27px}
            .footer-bottom{margin-top:35px}
        }

/* roulang page: category1 */
:root{
            --lime:#b8e83e;
            --lime-deep:#8fbd18;
            --indigo:#5146c9;
            --indigo-dark:#30286e;
            --ink:#202329;
            --muted:#727681;
            --paper:#fbfaf6;
            --white:#fff;
            --line:#e8e7e0;
            --soft:#f1f2eb;
            --dark:#171927;
            --radius:18px;
            --shadow:0 18px 45px rgba(35,38,43,.09);
            --max:1200px;
        }
        *{box-sizing:border-box}
        html{scroll-behavior:smooth}
        body{
            margin:0;
            color:var(--ink);
            background:var(--paper);
            font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
            font-size:16px;
            line-height:1.75;
        }
        a{color:inherit;text-decoration:none}
        a:hover{color:inherit}
        img{display:block;max-width:100%}
        button,input{font:inherit}
        button{cursor:pointer;border:0}
        :focus-visible{outline:3px solid rgba(81,70,201,.38);outline-offset:4px}
        .container{width:min(var(--max),calc(100% - 48px));margin:0 auto}
        .site-header{
            position:sticky;
            top:0;
            z-index:20;
            background:rgba(251,250,246,.96);
            border-bottom:1px solid var(--line);
        }
        .nav-wrap{min-height:76px;display:flex;align-items:center;gap:28px}
        .brand{display:flex;align-items:center;gap:11px;min-width:230px}
        .brand-mark{
            width:38px;height:38px;border-radius:12px;background:var(--dark);
            color:var(--lime);display:grid;place-items:center;font-weight:800;letter-spacing:-1px;
        }
        .brand-text{font-size:15px;font-weight:800;line-height:1.25;max-width:185px}
        .main-nav{display:flex;align-items:center;gap:21px;flex:1}
        .main-nav a{
            position:relative;padding:25px 0;color:#5e6169;font-size:13px;white-space:nowrap;
        }
        .main-nav a:after{
            content:"";position:absolute;left:0;right:100%;bottom:17px;height:3px;
            border-radius:3px;background:var(--lime-deep);transition:.25s ease;
        }
        .main-nav a:hover,.main-nav a.active{color:var(--ink)}
        .main-nav a:hover:after,.main-nav a.active:after{right:0}
        .btn{
            min-height:46px;padding:0 21px;border-radius:12px;display:inline-flex;
            align-items:center;justify-content:center;gap:8px;border:1px solid transparent;
            font-size:14px;font-weight:750;transition:.25s ease;
        }
        .btn-primary{background:var(--lime);color:#1a2410;box-shadow:0 8px 18px rgba(142,189,24,.19)}
        .btn-primary:hover{background:var(--lime-deep);transform:translateY(-2px);box-shadow:0 12px 24px rgba(142,189,24,.27)}
        .btn-ghost{background:var(--white);border-color:#d9d9d0;color:var(--ink)}
        .btn-ghost:hover{border-color:var(--lime-deep);background:#f4f9e8}
        .menu-toggle{display:none;background:none;font-size:24px;color:var(--ink)}
        .hero{
            padding:58px 0 72px;
            background:linear-gradient(180deg,#f3f4ed 0%,var(--paper) 100%);
        }
        .breadcrumb{display:flex;gap:9px;align-items:center;color:var(--muted);font-size:13px;margin-bottom:30px}
        .breadcrumb a{color:var(--indigo);font-weight:700}
        .breadcrumb span:last-child{color:#999b9e}
        .hero-grid{display:grid;grid-template-columns:1fr .85fr;gap:72px;align-items:center}
        .eyebrow{display:inline-flex;align-items:center;gap:8px;color:var(--indigo);font-size:13px;font-weight:800;letter-spacing:.04em;margin-bottom:18px}
        .eyebrow i{width:8px;height:8px;border-radius:50%;background:var(--lime-deep);display:block}
        h1,h2,h3,p{margin-top:0}
        h1{font-size:clamp(36px,5vw,58px);line-height:1.18;letter-spacing:-.045em;margin-bottom:22px;font-weight:800}
        h2{font-size:clamp(28px,3vw,38px);line-height:1.25;letter-spacing:-.03em;margin-bottom:14px;font-weight:800}
        h3{font-size:20px;line-height:1.35;margin-bottom:10px;font-weight:800}
        .hero-copy{max-width:650px;color:var(--muted);font-size:18px;line-height:1.9}
        .hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin:30px 0 0}
        .download-panel{
            min-height:380px;padding:28px;border-radius:28px;background:var(--dark);
            color:#fff;box-shadow:var(--shadow);position:relative;overflow:hidden;
        }
        .download-panel:before{
            content:"";position:absolute;width:280px;height:280px;border-radius:50%;
            right:-100px;top:-110px;background:var(--indigo);opacity:.72;
        }
        .panel-top,.panel-content,.panel-bottom{position:relative;z-index:1}
        .panel-top{display:flex;justify-content:space-between;align-items:center}
        .panel-label{font-size:13px;color:#c8c9d2}
        .status{display:inline-flex;align-items:center;gap:7px;color:var(--lime);font-size:12px;font-weight:800}
        .status i{width:7px;height:7px;background:var(--lime);border-radius:50%}
        .panel-content{display:flex;align-items:center;gap:24px;padding:43px 0 36px}
        .app-symbol{
            width:100px;height:100px;border-radius:25px;background:var(--lime);
            color:var(--dark);display:grid;place-items:center;font-size:30px;font-weight:900;
            box-shadow:0 12px 30px rgba(184,232,62,.2);
        }
        .panel-content h3{font-size:25px;margin-bottom:7px}
        .panel-content p{color:#bfc1ca;font-size:14px;margin-bottom:0}
        .panel-bottom{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;border-top:1px solid #3a3b49;padding-top:17px}
        .panel-info span{display:block;color:#989ba8;font-size:12px;margin-bottom:3px}
        .panel-info strong{font-size:14px;color:#fff}
        .section{padding:92px 0}
        .section-soft{background:var(--soft)}
        .section-white{background:var(--white)}
        .section-head{display:flex;justify-content:space-between;align-items:end;gap:24px;margin-bottom:38px}
        .section-intro{max-width:510px;color:var(--muted);margin-bottom:0}
        .number-line{display:grid;grid-template-columns:repeat(3,1fr);gap:0;border-top:1px solid var(--line)}
        .number-item{padding:27px 28px 10px 0;border-right:1px solid var(--line)}
        .number-item:not(:first-child){padding-left:28px}
        .number-item:last-child{border-right:0}
        .number{font-size:13px;color:var(--indigo);font-weight:900;letter-spacing:.08em;margin-bottom:18px}
        .number-item p,.feature p,.note p{color:var(--muted);font-size:14px;margin-bottom:0}
        .feature-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:18px}
        .feature,.note{
            background:var(--white);border:1px solid var(--line);border-radius:var(--radius);
            padding:30px;transition:.25s ease;
        }
        .feature:hover,.note:hover{border-color:#c8d98b;transform:translateY(-3px);box-shadow:var(--shadow)}
        .feature-main{background:var(--dark);color:#fff;min-height:250px;display:flex;flex-direction:column;justify-content:space-between}
        .feature-main p{color:#c0c2cb}
        .tag{font-size:12px;font-weight:800;color:var(--indigo)}
        .feature-main .tag{color:var(--lime)}
        .feature-list{display:grid;gap:18px}
        .feature-list .note{min-height:115px;padding:22px 25px}
        .feature-list h3{font-size:18px;margin-bottom:5px}
        .timeline{position:relative;display:grid;gap:0;max-width:900px;margin:auto}
        .timeline:before{content:"";position:absolute;left:20px;top:11px;bottom:11px;width:2px;background:#dfe1d7}
        .timeline-step{display:grid;grid-template-columns:42px 1fr;gap:24px;position:relative;padding:0 0 38px}
        .timeline-step:last-child{padding-bottom:0}
        .step-no{
            width:42px;height:42px;border-radius:13px;background:var(--indigo);color:#fff;
            display:grid;place-items:center;font-weight:800;font-size:14px;z-index:1;
        }
        .timeline-step h3{margin-bottom:6px}
        .timeline-step p{color:var(--muted);font-size:14px;margin:0;max-width:710px}
        .entry-table{border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;background:#fff}
        .entry-row{display:grid;grid-template-columns:1.2fr 1fr 1.5fr auto;gap:20px;align-items:center;padding:19px 24px;border-bottom:1px solid var(--line)}
        .entry-row:last-child{border-bottom:0}
        .entry-row.head{background:var(--dark);color:#fff;font-size:13px;font-weight:700}
        .entry-row:not(.head){font-size:14px}
        .entry-row p{color:var(--muted);margin:0;font-size:13px}
        .mini-link{color:var(--indigo);font-weight:800;font-size:13px;white-space:nowrap}
        .notice-box{
            display:flex;justify-content:space-between;align-items:center;gap:24px;
            padding:25px 30px;background:#eef7d8;border:1px solid #d8e9a7;border-radius:var(--radius);
        }
        .notice-box strong{display:block;font-size:18px;margin-bottom:4px}
        .notice-box p{color:var(--muted);font-size:14px;margin:0}
        .faq-list{max-width:900px;margin:auto;border-top:1px solid var(--line)}
        .faq-item{border-bottom:1px solid var(--line)}
        .faq-q{
            width:100%;padding:21px 4px;background:none;display:flex;justify-content:space-between;
            gap:20px;text-align:left;color:var(--ink);font-weight:800;
        }
        .faq-q span:last-child{color:var(--indigo);font-size:23px;line-height:1;transition:.25s}
        .faq-item.open .faq-q span:last-child{transform:rotate(45deg)}
        .faq-answer{display:none;color:var(--muted);font-size:14px;line-height:1.9;padding:0 45px 22px 4px}
        .faq-item.open .faq-answer{display:block}
        .cta{padding:0 0 92px}
        .cta-box{
            background:var(--indigo-dark);color:#fff;border-radius:24px;padding:43px 48px;
            display:flex;align-items:center;justify-content:space-between;gap:25px;
        }
        .cta-box h2{margin-bottom:8px}
        .cta-box p{margin:0;color:#d0cfdf;font-size:14px}
        .site-footer{background:var(--dark);color:#fff;padding:58px 0 22px}
        .footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.15fr;gap:35px}
        .footer-brand{color:#aeb0bd;font-size:13px;max-width:240px;margin:18px 0 0}
        .footer-title{font-size:14px;font-weight:800;margin-bottom:15px}
        .footer-links{display:grid;gap:8px;color:#aeb0bd;font-size:13px}
        .footer-links a:hover{color:var(--lime)}
        .footer-bottom{
            border-top:1px solid #343541;margin-top:42px;padding-top:19px;
            display:flex;justify-content:space-between;gap:15px;color:#858894;font-size:12px;
        }
        .footer-bottom a{color:#bfc1ca}
        @media(max-width:1100px){
            .nav-wrap{gap:16px}.brand{min-width:205px}.main-nav{gap:13px}
            .main-nav a{font-size:12px}.hero-grid{gap:40px}
        }
        @media(max-width:900px){
            .main-nav{display:none;position:absolute;left:24px;right:24px;top:76px;background:var(--white);
                border:1px solid var(--line);border-radius:0 0 16px 16px;padding:10px 20px;
                box-shadow:var(--shadow);flex-direction:column;align-items:stretch;gap:0}
            .main-nav.show{display:flex}
            .main-nav a{padding:13px 0;border-bottom:1px solid var(--line)}
            .main-nav a:last-child{border-bottom:0}
            .main-nav a:after{bottom:7px}
            .menu-toggle{display:block;margin-left:auto}
            .header-cta{display:none}
            .hero-grid,.feature-grid{grid-template-columns:1fr}
            .download-panel{max-width:650px}
            .footer-grid{grid-template-columns:repeat(2,1fr)}
        }
        @media(max-width:700px){
            .container{width:min(var(--max),calc(100% - 32px))}
            .hero{padding:38px 0 54px}
            .section{padding:62px 0}
            .section-head{display:block;margin-bottom:27px}
            .section-intro{margin-top:12px}
            .number-line{grid-template-columns:1fr}
            .number-item,.number-item:not(:first-child){padding:20px 0;border-right:0;border-bottom:1px solid var(--line)}
            .number-item:last-child{border-bottom:0}
            .entry-table{overflow-x:auto}
            .entry-row{min-width:700px}
            .notice-box,.cta-box{display:block;padding:28px 24px}
            .notice-box .btn,.cta-box .btn{margin-top:20px;width:100%}
            .footer-bottom{display:block;line-height:2}
            .footer-bottom span{display:block}
        }
        @media(max-width:520px){
            h1{font-size:34px}
            h2{font-size:28px}
            .hero-copy{font-size:16px}
            .hero-actions{display:grid}
            .hero-actions .btn{width:100%}
            .download-panel{padding:22px;min-height:350px}
            .panel-content{padding:38px 0 30px;gap:17px}
            .app-symbol{width:76px;height:76px;border-radius:20px;font-size:24px}
            .panel-content h3{font-size:21px}
            .panel-bottom{grid-template-columns:1fr}
            .timeline-step{gap:16px}
            .feature,.note{padding:24px}
            .footer-grid{grid-template-columns:1fr;gap:27px}
            .brand{min-width:0}
        }

/* roulang page: category2 */
:root{
            --lime:#b8e83e;
            --lime-deep:#8fbd18;
            --indigo:#5146c9;
            --indigo-dark:#30286e;
            --ink:#202329;
            --muted:#727681;
            --paper:#fbfaf6;
            --white:#fff;
            --line:#e8e7e0;
            --soft:#f1f2eb;
            --dark:#171927;
            --radius:18px;
            --shadow:0 18px 45px rgba(35,38,43,.09);
            --max:1200px;
        }
        *{box-sizing:border-box}
        html{scroll-behavior:smooth}
        body{margin:0;font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;color:var(--ink);background:var(--paper);line-height:1.75;font-size:16px}
        a{color:inherit;text-decoration:none}
        a:focus-visible,button:focus-visible,input:focus-visible{outline:3px solid rgba(81,70,201,.38);outline-offset:3px}
        img{max-width:100%;display:block}
        button,input{font:inherit}
        button{cursor:pointer;border:0}
        h1,h2,h3,p{margin-top:0}
        h1{font-size:clamp(36px,5vw,58px);line-height:1.2;letter-spacing:-.04em;font-weight:800;margin-bottom:22px}
        h2{font-size:clamp(28px,3.4vw,38px);line-height:1.28;letter-spacing:-.03em;font-weight:800;margin-bottom:15px}
        h3{font-size:21px;line-height:1.4;margin-bottom:10px;font-weight:800}
        .container{width:min(var(--max),calc(100% - 48px));margin:auto}
        .site-header{background:rgba(251,250,246,.96);border-bottom:1px solid var(--line);position:sticky;top:0;z-index:20}
        .nav-wrap{min-height:76px;display:flex;align-items:center;gap:28px}
        .brand{display:flex;align-items:center;gap:11px;min-width:230px}
        .brand-mark{width:38px;height:38px;border-radius:12px;background:var(--dark);color:var(--lime);display:grid;place-items:center;font-weight:800;letter-spacing:-1px}
        .brand-text{font-size:15px;font-weight:800;line-height:1.25;max-width:185px}
        .main-nav{display:flex;align-items:center;gap:21px;flex:1}
        .main-nav a{font-size:13px;color:#5e6169;position:relative;padding:25px 0;white-space:nowrap}
        .main-nav a:after{content:"";position:absolute;left:0;right:100%;bottom:17px;height:3px;border-radius:3px;background:var(--lime-deep);transition:.25s}
        .main-nav a:hover,.main-nav a.active{color:var(--ink)}
        .main-nav a:hover:after,.main-nav a.active:after{right:0}
        .btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:46px;padding:0 21px;border-radius:12px;font-weight:750;font-size:14px;transition:.25s ease;border:1px solid transparent}
        .btn-primary{background:var(--lime);color:#1a2410;box-shadow:0 8px 18px rgba(142,189,24,.19)}
        .btn-primary:hover{background:var(--lime-deep);transform:translateY(-2px);box-shadow:0 12px 24px rgba(142,189,24,.27)}
        .btn-ghost{border-color:#d9d9d0;background:var(--white);color:var(--ink)}
        .btn-ghost:hover{border-color:var(--lime-deep);background:#f4f9e8}
        .menu-toggle{display:none;background:none;font-size:24px;color:var(--ink)}
        .crumbs{padding:25px 0 0;color:var(--muted);font-size:13px}
        .crumbs a{color:var(--indigo);font-weight:700}
        .hero{padding:64px 0 82px}
        .hero-grid{display:grid;grid-template-columns:1fr 1fr;gap:68px;align-items:center}
        .eyebrow{display:inline-flex;align-items:center;gap:8px;color:var(--indigo);font-size:13px;font-weight:800;letter-spacing:.04em;margin-bottom:18px}
        .eyebrow i{width:8px;height:8px;border-radius:50%;background:var(--lime-deep);display:block}
        .hero-copy{font-size:18px;color:var(--muted);max-width:590px;line-height:1.85}
        .hero-actions{display:flex;gap:12px;margin:30px 0 0;flex-wrap:wrap}
        .entry-board{background:var(--dark);border-radius:28px;padding:30px;color:#fff;box-shadow:var(--shadow);position:relative;overflow:hidden}
        .entry-board:before{content:"";position:absolute;width:260px;height:260px;border-radius:50%;background:var(--indigo);right:-100px;top:-105px;opacity:.7}
        .board-top,.board-content{position:relative;z-index:1}
        .board-top{display:flex;justify-content:space-between;align-items:center;margin-bottom:27px}
        .board-label{font-size:13px;color:#c9cad3}
        .state{display:inline-flex;align-items:center;gap:7px;color:var(--lime);font-size:12px;font-weight:800}
        .state:before{content:"";width:8px;height:8px;border-radius:50%;background:var(--lime)}
        .entry-preview{background:#fff;border-radius:22px;color:var(--ink);padding:23px;min-height:265px;display:flex;flex-direction:column;justify-content:space-between}
        .preview-top{display:flex;justify-content:space-between;align-items:flex-start}
        .preview-mark{width:45px;height:45px;border-radius:14px;background:var(--lime);display:grid;place-items:center;font-weight:900;color:#20300b}
        .preview-code{font-size:12px;color:var(--muted);text-align:right}
        .preview-code strong{display:block;color:var(--ink);font-size:15px}
        .preview-line{height:9px;border-radius:9px;background:#ececf3;width:75%;margin-top:22px}
        .preview-line.short{width:48%;margin-top:10px}
        .preview-links{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin-top:25px}
        .preview-links span{padding:11px;border-radius:10px;background:#f2f3ed;font-size:12px;font-weight:750}
        .preview-links span:first-child{background:#ecebff;color:var(--indigo)}
        .board-foot{display:grid;grid-template-columns:repeat(3,1fr);gap:10px;margin-top:23px}
        .board-stat{border-top:1px solid #3a3b4b;padding-top:11px}
        .board-stat span{display:block;color:#9a9ca9;font-size:11px}
        .board-stat strong{font-size:13px}
        .section{padding:88px 0}
        .section.alt{background:var(--soft)}
        .section-head{display:flex;justify-content:space-between;align-items:end;gap:25px;margin-bottom:34px}
        .section-intro{color:var(--muted);max-width:510px}
        .entry-grid{display:grid;grid-template-columns:1.12fr .88fr;gap:22px;align-items:stretch}
        .entry-card{background:var(--white);border:1px solid var(--line);border-radius:var(--radius);padding:29px;transition:.25s}
        .entry-card:hover{border-color:#c8d98b;transform:translateY(-3px);box-shadow:var(--shadow)}
        .entry-card.featured{background:var(--indigo-dark);color:#fff;border-color:var(--indigo-dark);padding:34px}
        .entry-card.featured p{color:#d7d7e7}
        .entry-icon{width:46px;height:46px;border-radius:14px;background:#ecebff;color:var(--indigo);display:grid;place-items:center;font-weight:900;margin-bottom:22px}
        .featured .entry-icon{background:var(--lime);color:#26320f}
        .entry-card p{color:var(--muted);font-size:14px;line-height:1.8}
        .entry-meta{display:flex;gap:8px;flex-wrap:wrap;margin:20px 0}
        .badge{display:inline-flex;padding:5px 10px;border-radius:99px;background:#f0f1eb;color:#60636c;font-size:12px;font-weight:750}
        .featured .badge{background:rgba(255,255,255,.12);color:#e7e7ee}
        .card-link{color:var(--indigo);font-size:13px;font-weight:800}
        .featured .card-link{color:var(--lime)}
        .route-layout{display:grid;grid-template-columns:280px 1fr;gap:45px}
        .route-nav{border-right:1px solid var(--line);padding-right:25px}
        .route-nav a{display:flex;justify-content:space-between;padding:16px 0;border-bottom:1px solid var(--line);font-weight:750;color:var(--muted)}
        .route-nav a.active,.route-nav a:hover{color:var(--indigo)}
        .route-nav a.active:after{content:"→";color:var(--lime-deep)}
        .route-panel{background:#fff;border:1px solid var(--line);border-radius:20px;padding:32px}
        .route-row{display:grid;grid-template-columns:54px 1fr auto;gap:18px;align-items:start;padding:22px 0;border-bottom:1px solid var(--line)}
        .route-row:last-child{border-bottom:0;padding-bottom:0}
        .number{width:38px;height:38px;border-radius:12px;background:var(--lime);display:grid;place-items:center;font-weight:900;color:#26320f}
        .route-row p{color:var(--muted);font-size:14px;margin-bottom:0}
        .status-section{background:var(--dark);color:#fff}
        .status-grid{display:grid;grid-template-columns:1fr 1fr 1fr;gap:1px;background:#3a3b4b;border:1px solid #3a3b4b;border-radius:18px;overflow:hidden}
        .status-cell{background:var(--dark);padding:25px}
        .status-cell span{display:block;font-size:12px;color:#a7a9b5;margin-bottom:7px}
        .status-cell strong{font-size:18px}
        .status-cell p{font-size:13px;color:#c6c8d0;margin:8px 0 0}
        .faq-list{max-width:900px;margin:auto;border-top:1px solid var(--line)}
        .faq-item{border-bottom:1px solid var(--line)}
        .faq-q{width:100%;background:none;padding:20px 3px;display:flex;justify-content:space-between;text-align:left;font-weight:750;color:var(--ink)}
        .faq-q span:last-child{font-size:22px;color:var(--indigo);transition:.25s}
        .faq-item.open .faq-q span:last-child{transform:rotate(45deg)}
        .faq-answer{display:none;padding:0 38px 21px 3px;color:var(--muted);font-size:14px;line-height:1.85}
        .faq-item.open .faq-answer{display:block}
        .cta{padding:0 0 90px}
        .cta-box{background:var(--lime);border-radius:24px;padding:38px 44px;display:flex;justify-content:space-between;align-items:center;gap:25px}
        .cta-box p{margin:0;color:#46551f;max-width:570px}
        .cta-box .btn{background:var(--dark);color:#fff;box-shadow:none}
        .cta-box .btn:hover{background:var(--indigo-dark)}
        .site-footer{background:var(--dark);color:#fff;padding:62px 0 23px}
        .site-footer .brand-text{color:#fff}
        .footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.15fr;gap:35px;padding-bottom:44px}
        .footer-brand{color:#aeb0bc;font-size:13px;max-width:260px;margin:19px 0 0}
        .footer-title{font-size:13px;font-weight:800;color:#fff;margin-bottom:15px}
        .footer-links{display:flex;flex-direction:column;gap:9px;color:#aeb0bc;font-size:13px}
        .footer-links a:hover{color:var(--lime)}
        .footer-bottom{border-top:1px solid #383947;padding-top:19px;display:flex;justify-content:space-between;gap:15px;color:#9295a3;font-size:12px}
        .footer-bottom a{color:#c5c7d0}
        @media(max-width:1100px){
            .main-nav{gap:13px}
            .main-nav a{font-size:12px}
            .nav-wrap{gap:16px}
        }
        @media(max-width:900px){
            .main-nav{display:none;position:absolute;left:24px;right:24px;top:76px;background:var(--paper);border:1px solid var(--line);border-radius:15px;padding:10px 18px;box-shadow:var(--shadow);flex-direction:column;align-items:stretch;gap:0}
            .main-nav.show{display:flex}
            .main-nav a{padding:13px 0;border-bottom:1px solid var(--line)}
            .main-nav a:last-child{border-bottom:0}
            .main-nav a:after{bottom:5px}
            .menu-toggle{display:block}
            .header-cta{margin-left:auto}
            .hero-grid,.entry-grid{grid-template-columns:1fr}
            .hero{padding-top:48px}
            .route-layout{grid-template-columns:1fr;gap:20px}
            .route-nav{border-right:0;padding-right:0;display:flex;gap:12px;overflow-x:auto}
            .route-nav a{white-space:nowrap;border:1px solid var(--line);padding:10px 14px;border-radius:10px}
            .route-nav a.active:after{display:none}
            .status-grid{grid-template-columns:1fr}
            .footer-grid{grid-template-columns:1fr 1fr}
        }
        @media(max-width:576px){
            .container{width:min(var(--max),calc(100% - 32px))}
            .brand{min-width:0}
            .brand-text{font-size:13px;max-width:145px}
            .header-cta{display:none}
            .hero{padding:38px 0 60px}
            .hero-copy{font-size:16px}
            .hero-actions .btn{width:100%}
            .entry-board{padding:20px;border-radius:21px}
            .entry-preview{padding:18px;min-height:235px}
            .board-foot{grid-template-columns:1fr}
            .section{padding:62px 0}
            .section-head{display:block;margin-bottom:25px}
            .section-intro{margin-top:10px}
            .entry-card.featured,.entry-card{padding:24px}
            .route-panel{padding:20px}
            .route-row{grid-template-columns:42px 1fr;gap:13px}
            .route-row .btn{grid-column:2;justify-self:start}
            .cta-box{display:block;padding:29px 24px}
            .cta-box .btn{margin-top:20px;width:100%}
            .footer-grid{grid-template-columns:1fr;gap:28px}
            .footer-bottom{display:block}
            .footer-bottom span{display:block;margin-top:7px}
        }

/* roulang page: category3 */
:root{
            --lime:#b8e83e;
            --lime-deep:#8fbd18;
            --indigo:#5146c9;
            --indigo-dark:#30286e;
            --ink:#202329;
            --muted:#727681;
            --paper:#fbfaf6;
            --white:#fff;
            --line:#e8e7e0;
            --soft:#f1f2eb;
            --dark:#171927;
            --radius:18px;
            --shadow:0 18px 45px rgba(35,38,43,.09);
            --max:1200px;
        }
        *{box-sizing:border-box}
        html{scroll-behavior:smooth}
        body{margin:0;font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;color:var(--ink);background:var(--paper);line-height:1.75;font-size:16px}
        a{color:inherit;text-decoration:none}
        img{max-width:100%;display:block}
        button,input{font:inherit}
        button{cursor:pointer;border:0}
        h1,h2,h3,p{margin-top:0}
        h1{font-size:clamp(34px,4.5vw,56px);line-height:1.22;letter-spacing:-.04em;font-weight:800;margin-bottom:22px}
        h2{font-size:clamp(27px,3vw,36px);line-height:1.3;letter-spacing:-.025em;font-weight:800;margin-bottom:14px}
        h3{font-size:21px;line-height:1.4;font-weight:780;margin-bottom:10px}
        .container{width:min(var(--max),calc(100% - 48px));margin:auto}
        .site-header{background:rgba(251,250,246,.96);border-bottom:1px solid var(--line);position:sticky;top:0;z-index:20}
        .nav-wrap{min-height:76px;display:flex;align-items:center;gap:28px}
        .brand{display:flex;align-items:center;gap:11px;min-width:230px}
        .brand-mark{width:38px;height:38px;border-radius:12px;background:var(--dark);color:var(--lime);display:grid;place-items:center;font-weight:800;letter-spacing:-1px}
        .brand-text{font-size:15px;font-weight:800;line-height:1.25;max-width:185px}
        .main-nav{display:flex;align-items:center;gap:21px;flex:1}
        .main-nav a{font-size:13px;color:#5e6169;position:relative;padding:25px 0;white-space:nowrap}
        .main-nav a:after{content:"";position:absolute;left:0;right:100%;bottom:17px;height:3px;border-radius:3px;background:var(--lime-deep);transition:.25s}
        .main-nav a:hover,.main-nav a.active{color:var(--ink)}
        .main-nav a:hover:after,.main-nav a.active:after{right:0}
        .btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:46px;padding:0 21px;border-radius:12px;font-weight:750;font-size:14px;transition:.25s ease;border:1px solid transparent}
        .btn:focus-visible,.main-nav a:focus-visible,.faq-q:focus-visible,input:focus-visible{outline:3px solid rgba(81,70,201,.3);outline-offset:3px}
        .btn-primary{background:var(--lime);color:#1a2410;box-shadow:0 8px 18px rgba(142,189,24,.19)}
        .btn-primary:hover{background:var(--lime-deep);transform:translateY(-2px);box-shadow:0 12px 24px rgba(142,189,24,.27)}
        .btn-ghost{border-color:#d9d9d0;background:var(--white);color:var(--ink)}
        .btn-ghost:hover{border-color:var(--lime-deep);background:#f4f9e8}
        .menu-toggle{display:none;background:none;font-size:24px;color:var(--ink)}
        .hero{padding:72px 0 64px;background:var(--paper)}
        .crumbs{font-size:13px;color:var(--muted);margin-bottom:35px}
        .crumbs a{color:var(--indigo);font-weight:700}
        .hero-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:70px;align-items:center}
        .eyebrow{display:inline-flex;align-items:center;gap:8px;color:var(--indigo);font-size:13px;font-weight:800;letter-spacing:.04em;margin-bottom:18px}
        .eyebrow i{width:8px;height:8px;border-radius:50%;background:var(--lime-deep);display:block}
        .hero-copy{font-size:18px;color:var(--muted);max-width:610px;line-height:1.85}
        .hero-actions{display:flex;gap:12px;margin:30px 0 0;flex-wrap:wrap}
        .guide-board{background:var(--dark);border-radius:28px;padding:30px;color:#fff;box-shadow:var(--shadow);position:relative;overflow:hidden}
        .guide-board:before{content:"";position:absolute;width:230px;height:230px;background:var(--indigo);border-radius:50%;right:-78px;top:-90px;opacity:.72}
        .board-top,.board-content{position:relative;z-index:1}
        .board-top{display:flex;justify-content:space-between;align-items:center;color:#c9cad3;font-size:13px}
        .status{display:inline-flex;align-items:center;gap:7px;color:var(--lime);font-weight:700}
        .status:before{content:"";width:7px;height:7px;border-radius:50%;background:var(--lime)}
        .route-visual{display:grid;grid-template-columns:74px 1fr;gap:18px;align-items:center;padding:44px 0 38px}
        .route-icon{width:74px;height:92px;border:3px solid var(--lime);border-radius:19px;display:grid;place-items:center;color:var(--lime);font-weight:900;font-size:25px}
        .route-visual h3{color:#fff;margin-bottom:5px}
        .route-visual p{color:#bfc1cb;font-size:14px;margin:0}
        .board-meta{display:grid;grid-template-columns:1fr 1fr;gap:12px}
        .meta-box{border-top:1px solid #3b3c4b;padding-top:12px}
        .meta-box span{display:block;color:#9a9ca9;font-size:12px}
        .meta-box strong{font-size:14px}
        .section{padding:92px 0}
        .section-white{background:var(--white)}
        .section-soft{background:var(--soft)}
        .section-head{display:flex;justify-content:space-between;align-items:end;gap:25px;margin-bottom:38px}
        .section-intro{color:var(--muted);max-width:510px}
        .process{display:grid;grid-template-columns:1fr 1fr;gap:0 70px;position:relative}
        .process:before{content:"";position:absolute;left:25px;top:28px;bottom:28px;border-left:2px dashed #d5d8c8}
        .process-step{display:grid;grid-template-columns:52px 1fr;gap:18px;padding:20px 0;position:relative}
        .step-number{width:52px;height:52px;border-radius:16px;background:var(--lime);color:#27320f;display:grid;place-items:center;font-size:19px;font-weight:850;z-index:1}
        .process-step p{color:var(--muted);font-size:14px;margin:0;max-width:410px}
        .process-step:nth-child(even){transform:translateY(42px)}
        .notice{margin-top:35px;padding:20px 24px;border:1px solid #dce6b9;background:#f7faed;border-radius:15px;color:#59613d;font-size:14px}
        .compat-layout{display:grid;grid-template-columns:.8fr 1.2fr;gap:46px;align-items:start}
        .compat-card{background:var(--dark);color:#fff;border-radius:22px;padding:30px;position:sticky;top:110px}
        .compat-card h3{color:#fff}
        .compat-card p{color:#c1c3cd;font-size:14px}
        .compat-labels{display:flex;gap:9px;flex-wrap:wrap;margin:22px 0}
        .compat-label{border:1px solid #55576a;border-radius:999px;padding:6px 11px;color:#e3e4ea;font-size:12px}
        .info-table{border-top:1px solid var(--line)}
        .info-row{display:grid;grid-template-columns:150px 1fr;gap:20px;padding:20px 0;border-bottom:1px solid var(--line)}
        .info-row strong{font-size:15px}
        .info-row span{color:var(--muted);font-size:14px}
        .check-list{list-style:none;padding:0;margin:23px 0 0}
        .check-list li{position:relative;padding:11px 0 11px 28px;border-bottom:1px solid var(--line);color:var(--muted);font-size:14px}
        .check-list li:before{content:"✓";position:absolute;left:0;color:var(--indigo);font-weight:900}
        .trouble-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:16px}
        .trouble-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:25px;transition:.25s}
        .trouble-card:hover{border-color:#c8d98b;transform:translateY(-3px);box-shadow:var(--shadow)}
        .trouble-card .tag{display:inline-block;margin-bottom:12px}
        .trouble-card p{color:var(--muted);font-size:14px;margin:0}
        .faq-list{max-width:880px;margin:auto;border-top:1px solid var(--line)}
        .faq-item{border-bottom:1px solid var(--line)}
        .faq-q{width:100%;background:none;padding:21px 3px;display:flex;justify-content:space-between;text-align:left;font-weight:750;color:var(--ink)}
        .faq-q span:last-child{font-size:22px;color:var(--indigo);transition:.25s}
        .faq-item.open .faq-q span:last-child{transform:rotate(45deg)}
        .faq-answer{display:none;padding:0 35px 22px 3px;line-height:1.85;color:var(--muted);font-size:14px}
        .faq-item.open .faq-answer{display:block}
        .cta{padding:0 0 92px}
        .cta-box{background:var(--indigo-dark);color:#fff;border-radius:24px;padding:40px 46px;display:flex;justify-content:space-between;align-items:center;gap:30px}
        .cta-box h2{margin-bottom:9px}
        .cta-box p{color:#d0cee4;margin:0;max-width:650px}
        .site-footer{background:var(--dark);color:#fff;padding:55px 0 22px}
        .footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.1fr;gap:35px;padding-bottom:45px}
        .footer-brand{color:#aeb0bd;font-size:13px;margin:18px 0 0;max-width:250px}
        .footer-title{font-size:14px;font-weight:800;color:var(--lime);margin-bottom:15px}
        .footer-links{display:flex;flex-direction:column;gap:9px;color:#bfc1cb;font-size:13px}
        .footer-links a:hover{color:var(--lime)}
        .footer-bottom{border-top:1px solid #353746;padding-top:20px;display:flex;justify-content:space-between;gap:20px;color:#9295a3;font-size:12px}
        .footer-bottom a:hover{color:var(--lime)}
        @media(max-width:1100px){
            .main-nav{gap:13px}
            .main-nav a{font-size:12px}
            .hero-grid{gap:40px}
        }
        @media(max-width:992px){
            .main-nav,.header-cta{display:none}
            .menu-toggle{display:block;margin-left:auto}
            .nav-wrap{gap:15px}
            .main-nav.open{display:flex;position:absolute;left:24px;right:24px;top:76px;background:var(--white);border:1px solid var(--line);border-radius:15px;padding:12px 20px;flex-direction:column;align-items:flex-start;box-shadow:var(--shadow)}
            .main-nav.open a{padding:8px 0}
            .main-nav.open a:after{bottom:3px}
            .hero-grid,.compat-layout{grid-template-columns:1fr}
            .compat-card{position:static}
            .process{gap:0 35px}
        }
        @media(max-width:768px){
            .container{width:min(var(--max),calc(100% - 32px))}
            .hero{padding:45px 0 50px}
            .section{padding:62px 0}
            .section-head{display:block;margin-bottom:26px}
            .section-intro{margin-top:12px}
            .process{display:block}
            .process:before{left:25px}
            .process-step:nth-child(even){transform:none}
            .trouble-grid{grid-template-columns:1fr}
            .cta-box{display:block;padding:32px 25px}
            .cta-box .btn{margin-top:24px}
            .footer-grid{grid-template-columns:1fr 1fr}
            .footer-bottom{display:block}
            .footer-bottom span{display:block;margin-top:8px}
        }
        @media(max-width:520px){
            h1{font-size:34px}
            .brand{min-width:0}
            .brand-text{font-size:13px;max-width:145px}
            .hero-actions .btn{width:100%}
            .guide-board{padding:23px;border-radius:22px}
            .route-visual{padding:35px 0}
            .info-row{grid-template-columns:1fr;gap:4px}
            .footer-grid{grid-template-columns:1fr}
            .footer-bottom{font-size:11px}
        }

/* roulang page: category4 */
:root{
            --lime:#b8e83e;
            --lime-deep:#8fbd18;
            --indigo:#5146c9;
            --indigo-dark:#30286e;
            --ink:#202329;
            --muted:#727681;
            --paper:#fbfaf6;
            --white:#fff;
            --line:#e8e7e0;
            --soft:#f1f2eb;
            --dark:#171927;
            --radius:18px;
            --shadow:0 18px 45px rgba(35,38,43,.09);
            --max:1200px;
        }
        *{box-sizing:border-box}
        html{scroll-behavior:smooth}
        body{margin:0;color:var(--ink);background:var(--paper);font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif;font-size:16px;line-height:1.75}
        a{color:inherit;text-decoration:none}
        img{max-width:100%;display:block}
        button,input{font:inherit}
        button{cursor:pointer;border:0}
        .container{width:min(var(--max),calc(100% - 48px));margin:auto}
        .site-header{position:sticky;top:0;z-index:30;background:rgba(251,250,246,.96);border-bottom:1px solid var(--line)}
        .nav-wrap{min-height:76px;display:flex;align-items:center;gap:28px}
        .brand{display:flex;align-items:center;gap:11px;min-width:230px}
        .brand-mark{width:38px;height:38px;border-radius:12px;background:var(--dark);color:var(--lime);display:grid;place-items:center;font-weight:800;letter-spacing:-1px}
        .brand-text{font-size:15px;font-weight:800;line-height:1.25;max-width:185px}
        .main-nav{display:flex;align-items:center;gap:21px;flex:1}
        .main-nav a{font-size:13px;color:#5e6169;position:relative;padding:25px 0;white-space:nowrap}
        .main-nav a:after{content:"";position:absolute;left:0;right:100%;bottom:17px;height:3px;border-radius:3px;background:var(--lime-deep);transition:.25s}
        .main-nav a:hover,.main-nav a.active{color:var(--ink)}
        .main-nav a:hover:after,.main-nav a.active:after{right:0}
        .btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:46px;padding:0 21px;border-radius:12px;font-weight:750;font-size:14px;transition:.25s ease;border:1px solid transparent}
        .btn-primary{background:var(--lime);color:#1a2410;box-shadow:0 8px 18px rgba(142,189,24,.19)}
        .btn-primary:hover{background:var(--lime-deep);transform:translateY(-2px);box-shadow:0 12px 24px rgba(142,189,24,.27)}
        .btn-ghost{border-color:#d9d9d0;background:var(--white);color:var(--ink)}
        .btn-ghost:hover{border-color:var(--lime-deep);background:#f4f9e8}
        .menu-toggle{display:none;background:none;font-size:24px;color:var(--ink)}
        .page-hero{padding:76px 0 72px;background:var(--dark);color:#fff;position:relative;overflow:hidden}
        .page-hero:after{content:"";position:absolute;width:360px;height:360px;border-radius:50%;right:-110px;top:-150px;background:var(--indigo);opacity:.72}
        .hero-inner{position:relative;z-index:1;display:grid;grid-template-columns:1.1fr .9fr;gap:70px;align-items:center}
        .eyebrow{display:inline-flex;align-items:center;gap:8px;color:var(--lime);font-size:13px;font-weight:800;margin-bottom:18px}
        .eyebrow i{width:8px;height:8px;border-radius:50%;background:var(--lime);display:block}
        h1,h2,h3,p{margin-top:0}
        h1{font-size:clamp(34px,5vw,54px);line-height:1.2;letter-spacing:-.04em;margin-bottom:21px}
        h2{font-size:clamp(27px,3vw,36px);line-height:1.25;letter-spacing:-.03em;margin-bottom:14px}
        h3{font-size:20px;line-height:1.35;margin-bottom:9px}
        .hero-copy{color:#c7c8d0;font-size:17px;max-width:650px}
        .hero-actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:30px}
        .hero-actions .btn-ghost{background:transparent;border-color:#55586a;color:#fff}
        .hero-actions .btn-ghost:hover{background:#27293b;border-color:var(--lime)}
        .entry-panel{background:#fff;color:var(--ink);border-radius:24px;padding:27px;box-shadow:var(--shadow)}
        .panel-top{display:flex;justify-content:space-between;align-items:center;border-bottom:1px solid var(--line);padding-bottom:18px;margin-bottom:22px}
        .status{font-size:12px;font-weight:800;color:#52760d;background:#eef8d4;border-radius:30px;padding:5px 10px}
        .preview{height:145px;border-radius:16px;background:var(--soft);display:grid;place-items:center;margin-bottom:20px}
        .preview-shape{width:90px;height:112px;border:6px solid var(--dark);border-radius:18px;position:relative}
        .preview-shape:after{content:"C7";position:absolute;inset:0;display:grid;place-items:center;color:var(--indigo);font-weight:900;font-size:20px}
        .panel-data{display:grid;grid-template-columns:1fr 1fr;gap:15px}
        .panel-data span{display:block;color:var(--muted);font-size:12px}
        .panel-data strong{font-size:14px}
        .section{padding:88px 0}
        .section-light{background:#fff}
        .section-soft{background:var(--soft)}
        .section-head{display:flex;justify-content:space-between;gap:25px;align-items:end;margin-bottom:35px}
        .section-intro{max-width:510px;color:var(--muted)}
        .guide-layout{display:grid;grid-template-columns:255px 1fr;gap:48px}
        .topic-nav{position:sticky;top:105px;align-self:start}
        .topic-nav button{display:block;width:100%;text-align:left;background:transparent;border-left:3px solid transparent;padding:13px 17px;color:var(--muted);font-weight:700;transition:.2s}
        .topic-nav button:hover,.topic-nav button.active{color:var(--ink);border-left-color:var(--lime-deep);background:#f5f8e9}
        .topic-panel{display:none;background:#fff;border:1px solid var(--line);border-radius:20px;padding:31px;min-height:310px;box-shadow:0 10px 25px rgba(35,38,43,.04)}
        .topic-panel.active{display:block}
        .topic-kicker{color:var(--indigo);font-size:13px;font-weight:800;margin-bottom:12px}
        .topic-panel p{color:var(--muted);max-width:680px}
        .visual-note{margin-top:25px;border:1px dashed #cfd2c4;border-radius:14px;padding:17px;color:var(--muted);background:#fcfcf8;font-size:14px}
        .info-strip{display:flex;flex-wrap:wrap;gap:10px;margin-top:28px}
        .chip{border:1px solid var(--line);background:#fff;border-radius:30px;padding:8px 14px;font-size:13px;color:#5f626b}
        .route-grid{display:grid;grid-template-columns:1.2fr .8fr;gap:20px}
        .route-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:29px;transition:.25s}
        .route-card:hover{border-color:#c6d98b;transform:translateY(-3px);box-shadow:var(--shadow)}
        .route-card.featured{background:var(--dark);color:#fff}
        .route-card.featured p{color:#c4c5ce}
        .route-number{width:42px;height:42px;border-radius:13px;background:#ecebff;color:var(--indigo);display:grid;place-items:center;font-weight:800;margin-bottom:21px}
        .route-card.featured .route-number{background:var(--lime);color:#22300d}
        .route-card p{color:var(--muted);font-size:14px}
        .route-card a{color:var(--indigo);font-size:14px;font-weight:800}
        .route-card.featured a{color:var(--lime)}
        .faq-list{max-width:850px;margin:auto;border-top:1px solid var(--line)}
        .faq-item{border-bottom:1px solid var(--line)}
        .faq-q{width:100%;background:none;padding:20px 3px;display:flex;justify-content:space-between;text-align:left;font-weight:750;color:var(--ink)}
        .faq-q span:last-child{font-size:22px;color:var(--indigo);transition:.25s}
        .faq-item.open .faq-q span:last-child{transform:rotate(45deg)}
        .faq-answer{display:none;padding:0 35px 21px 3px;color:var(--muted);font-size:14px}
        .faq-item.open .faq-answer{display:block}
        .cta{padding:0 0 90px}
        .cta-box{background:var(--lime);border-radius:22px;padding:35px 40px;display:flex;justify-content:space-between;align-items:center;gap:25px}
        .cta-box p{margin:0;color:#42501f}
        .site-footer{background:var(--dark);color:#fff;padding:60px 0 22px}
        .footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.1fr;gap:35px}
        .footer-brand{color:#aeb0bb;font-size:13px;max-width:260px;margin-top:19px}
        .footer-title{font-size:13px;font-weight:800;color:var(--lime);margin-bottom:15px}
        .footer-links{display:flex;flex-direction:column;gap:8px;color:#bfc0c9;font-size:13px}
        .footer-links a:hover{color:var(--lime)}
        .footer-bottom{border-top:1px solid #353644;margin-top:45px;padding-top:20px;display:flex;justify-content:space-between;gap:15px;color:#92949f;font-size:12px}
        .footer-bottom a:hover{color:var(--lime)}
        :focus-visible{outline:3px solid var(--lime-deep);outline-offset:3px}
        @media(max-width:992px){
            .main-nav{gap:13px}
            .main-nav a{font-size:12px}
            .hero-inner{grid-template-columns:1fr;gap:35px}
            .guide-layout{grid-template-columns:1fr}
            .topic-nav{position:static;display:flex;overflow:auto;gap:8px;border-bottom:1px solid var(--line)}
            .topic-nav button{min-width:max-content;border-left:0;border-bottom:3px solid transparent}
            .topic-nav button:hover,.topic-nav button.active{border-left:0;border-bottom-color:var(--lime-deep)}
            .footer-grid{grid-template-columns:repeat(2,1fr)}
        }
        @media(max-width:768px){
            .container{width:min(var(--max),calc(100% - 32px))}
            .nav-wrap{min-height:68px;gap:14px}
            .brand{min-width:0;flex:1}
            .main-nav{display:none;position:absolute;top:68px;left:0;right:0;background:var(--paper);padding:12px 20px 20px;border-bottom:1px solid var(--line);flex-direction:column;align-items:stretch;gap:0}
            .main-nav.show{display:flex}
            .main-nav a{padding:12px 0}
            .main-nav a:after{bottom:5px}
            .header-cta{display:none}
            .menu-toggle{display:block}
            .page-hero{padding:55px 0}
            .section{padding:62px 0}
            .section-head{display:block}
            .route-grid{grid-template-columns:1fr}
            .cta-box{display:block;padding:29px 25px}
            .cta-box .btn{margin-top:20px;width:100%}
        }
        @media(max-width:520px){
            .brand-text{font-size:13px}
            .brand-mark{width:34px;height:34px}
            .hero-actions .btn{width:100%}
            .entry-panel,.topic-panel,.route-card{padding:23px}
            .panel-data{gap:9px}
            .footer-grid{grid-template-columns:1fr}
            .footer-bottom{display:block;line-height:2}
            .footer-bottom span{display:block}
        }

/* roulang page: category6 */
:root{
            --lime:#b8e83e;
            --lime-deep:#8fbd18;
            --indigo:#5146c9;
            --indigo-dark:#30286e;
            --ink:#202329;
            --muted:#727681;
            --paper:#fbfaf6;
            --white:#fff;
            --line:#e8e7e0;
            --soft:#f1f2eb;
            --dark:#171927;
            --radius:18px;
            --shadow:0 18px 45px rgba(35,38,43,.09);
            --max:1200px;
        }
        *{box-sizing:border-box}
        html{scroll-behavior:smooth}
        body{margin:0;font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;color:var(--ink);background:var(--paper);line-height:1.75;font-size:16px}
        a{color:inherit;text-decoration:none}
        img{max-width:100%;display:block}
        button,input{font:inherit}
        button{cursor:pointer;border:0}
        :focus-visible{outline:3px solid rgba(81,70,201,.35);outline-offset:3px}
        .container{width:min(var(--max),calc(100% - 48px));margin:auto}
        .site-header{background:rgba(251,250,246,.96);border-bottom:1px solid var(--line);position:sticky;top:0;z-index:20}
        .nav-wrap{min-height:76px;display:flex;align-items:center;gap:28px}
        .brand{display:flex;align-items:center;gap:11px;min-width:230px}
        .brand-mark{width:38px;height:38px;border-radius:12px;background:var(--dark);color:var(--lime);display:grid;place-items:center;font-weight:800;letter-spacing:-1px}
        .brand-text{font-size:15px;font-weight:800;line-height:1.25;max-width:185px}
        .main-nav{display:flex;align-items:center;gap:21px;flex:1}
        .main-nav a{font-size:13px;color:#5e6169;position:relative;padding:25px 0;white-space:nowrap}
        .main-nav a:after{content:"";position:absolute;left:0;right:100%;bottom:17px;height:3px;border-radius:3px;background:var(--lime-deep);transition:.25s}
        .main-nav a:hover,.main-nav a.active{color:var(--ink)}
        .main-nav a:hover:after,.main-nav a.active:after{right:0}
        .btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:46px;padding:0 21px;border-radius:12px;font-weight:750;font-size:14px;transition:.25s ease;border:1px solid transparent}
        .btn-primary{background:var(--lime);color:#1a2410;box-shadow:0 8px 18px rgba(142,189,24,.19)}
        .btn-primary:hover{background:var(--lime-deep);transform:translateY(-2px);box-shadow:0 12px 24px rgba(142,189,24,.27)}
        .btn-ghost{border-color:#d9d9d0;background:var(--white);color:var(--ink)}
        .btn-ghost:hover{border-color:var(--lime-deep);background:#f4f9e8}
        .menu-toggle{display:none;background:none;font-size:24px;color:var(--ink)}
        .hero{padding:78px 0 64px;background:var(--dark);color:#fff;position:relative;overflow:hidden}
        .hero:after{content:"";position:absolute;width:390px;height:390px;border-radius:50%;background:var(--indigo);right:-120px;top:-190px;opacity:.6}
        .hero-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:70px;align-items:center;position:relative;z-index:1}
        .eyebrow{display:inline-flex;align-items:center;gap:8px;color:var(--lime);font-size:13px;font-weight:800;letter-spacing:.04em;margin-bottom:18px}
        .eyebrow i{width:8px;height:8px;border-radius:50%;background:var(--lime);display:block}
        h1{font-size:clamp(36px,5vw,58px);line-height:1.2;letter-spacing:-.04em;margin:0 0 22px;font-weight:800}
        h2{font-size:clamp(27px,3vw,36px);line-height:1.3;letter-spacing:-.03em;margin:0}
        h3{font-size:20px;line-height:1.4;margin:0 0 10px}
        .hero-copy{font-size:18px;color:#c6c7d0;max-width:650px;line-height:1.85}
        .hero-actions{display:flex;gap:12px;margin-top:30px;flex-wrap:wrap}
        .hero .btn-ghost{background:transparent;color:#fff;border-color:#555768}
        .hero .btn-ghost:hover{background:#292b3c;border-color:var(--lime)}
        .question-panel{background:#fff;color:var(--ink);padding:28px;border-radius:24px;box-shadow:var(--shadow)}
        .panel-kicker{color:var(--indigo);font-size:12px;font-weight:800;letter-spacing:.08em;text-transform:uppercase}
        .question-panel h2{font-size:26px;margin:9px 0 12px}
        .question-panel p{color:var(--muted);font-size:14px;margin-bottom:20px}
        .search-box{display:flex;border:1px solid var(--line);border-radius:12px;overflow:hidden;background:#fff}
        .search-box input{min-width:0;flex:1;border:0;padding:12px 14px;color:var(--ink);outline:0}
        .search-box button{background:var(--lime);padding:0 18px;font-weight:800;color:#1a2410}
        .section{padding:92px 0}
        .section-head{display:flex;justify-content:space-between;align-items:end;gap:25px;margin-bottom:34px}
        .section-intro{color:var(--muted);max-width:540px;margin:0}
        .faq-layout{display:grid;grid-template-columns:260px 1fr;gap:58px;align-items:start}
        .category-list{position:sticky;top:105px;background:var(--white);border:1px solid var(--line);border-radius:18px;padding:12px}
        .category-list a{display:flex;justify-content:space-between;padding:14px 15px;border-radius:11px;color:var(--muted);font-weight:700;font-size:14px;transition:.2s}
        .category-list a:hover,.category-list a.active{background:#f0f4df;color:var(--ink)}
        .category-list a.active{box-shadow:inset 3px 0 var(--lime-deep)}
        .faq-group{margin-bottom:38px}
        .group-title{display:flex;align-items:center;gap:12px;margin-bottom:15px}
        .group-title span{width:32px;height:32px;border-radius:10px;background:#ecebff;color:var(--indigo);display:grid;place-items:center;font-size:13px;font-weight:800}
        .faq-list{border-top:1px solid var(--line)}
        .faq-item{border-bottom:1px solid var(--line)}
        .faq-q{width:100%;background:none;padding:20px 3px;display:flex;justify-content:space-between;text-align:left;font-weight:750;color:var(--ink);gap:20px}
        .faq-q span:last-child{font-size:22px;color:var(--indigo);transition:.25s;line-height:1}
        .faq-item.open .faq-q span:last-child{transform:rotate(45deg)}
        .faq-answer{display:none;padding:0 35px 21px 3px;color:var(--muted);font-size:14px;line-height:1.9}
        .faq-item.open .faq-answer{display:block}
        .tips-section{background:var(--soft)}
        .tip-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
        .tip-card{background:var(--white);border:1px solid var(--line);border-radius:var(--radius);padding:25px;min-height:185px;transition:.25s}
        .tip-card:hover{transform:translateY(-3px);border-color:#c8d98b;box-shadow:var(--shadow)}
        .tip-number{color:var(--indigo);font-weight:900;font-size:13px;margin-bottom:23px}
        .tip-card p{color:var(--muted);font-size:14px;margin:0}
        .cta{padding:25px 0 92px}
        .cta-box{background:var(--lime);border-radius:22px;padding:38px 44px;display:flex;align-items:center;justify-content:space-between;gap:25px}
        .cta-box p{margin:8px 0 0;color:#4c5b22;font-size:15px}
        .cta-box .btn{background:var(--dark);color:#fff;box-shadow:none}
        .cta-box .btn:hover{background:var(--indigo)}
        .site-footer{background:var(--dark);color:#fff;padding:58px 0 24px}
        .footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.15fr;gap:32px}
        .footer-brand{color:#a9abb7;font-size:13px;max-width:250px;margin-top:18px}
        .footer-title{font-size:13px;color:var(--lime);font-weight:800;margin-bottom:16px}
        .footer-links{display:flex;flex-direction:column;gap:9px;color:#b9bbc5;font-size:13px}
        .footer-links a:hover{color:var(--lime)}
        .footer-bottom{border-top:1px solid #343644;margin-top:42px;padding-top:20px;display:flex;justify-content:space-between;gap:15px;color:#8f919d;font-size:12px}
        .footer-bottom a{color:#c7c9d1}
        .empty-result{display:none;color:var(--muted);font-size:14px;margin-top:16px}
        @media(max-width:992px){
            .main-nav{gap:13px}
            .main-nav a{font-size:12px}
            .hero-grid{grid-template-columns:1fr;gap:35px}
            .question-panel{max-width:600px}
            .faq-layout{grid-template-columns:210px 1fr;gap:32px}
            .footer-grid{grid-template-columns:repeat(2,1fr)}
        }
        @media(max-width:768px){
            .container{width:min(var(--max),calc(100% - 32px))}
            .nav-wrap{min-height:68px;gap:14px}
            .brand{min-width:0;flex:1}
            .brand-text{font-size:13px}
            .main-nav{display:none;position:absolute;left:16px;right:16px;top:68px;background:var(--paper);padding:10px 18px;border:1px solid var(--line);border-radius:14px;box-shadow:var(--shadow);flex-direction:column;align-items:stretch;gap:0}
            .main-nav.show{display:flex}
            .main-nav a{padding:12px 0;border-bottom:1px solid var(--line)}
            .main-nav a:last-child{border-bottom:0}
            .main-nav a:after{bottom:5px}
            .header-cta{display:none}
            .menu-toggle{display:block}
            .hero{padding:58px 0 48px}
            .section{padding:62px 0}
            .section-head{display:block}
            .section-intro{margin-top:14px}
            .faq-layout{display:block}
            .category-list{position:static;display:flex;overflow-x:auto;gap:5px;margin-bottom:35px;padding:8px}
            .category-list a{white-space:nowrap;padding:10px 12px}
            .tip-grid{grid-template-columns:1fr}
            .cta-box{display:block;padding:30px 25px}
            .cta-box .btn{margin-top:22px;width:100%}
        }
        @media(max-width:520px){
            h1{font-size:34px}
            .hero-copy{font-size:16px}
            .hero-actions .btn{width:100%}
            .question-panel{padding:22px}
            .search-box button{padding:0 12px}
            .faq-q{font-size:15px}
            .footer-grid{grid-template-columns:1fr}
            .footer-bottom{display:block;line-height:2}
        }

/* roulang page: category5 */
:root{
            --lime:#b8e83e;
            --lime-deep:#8fbd18;
            --indigo:#5146c9;
            --indigo-dark:#30286e;
            --ink:#202329;
            --muted:#727681;
            --paper:#fbfaf6;
            --white:#fff;
            --line:#e8e7e0;
            --soft:#f1f2eb;
            --dark:#171927;
            --radius:18px;
            --shadow:0 18px 45px rgba(35,38,43,.09);
            --max:1200px;
        }
        *{box-sizing:border-box}
        html{scroll-behavior:smooth}
        body{margin:0;font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;color:var(--ink);background:var(--paper);line-height:1.75;font-size:16px}
        a{color:inherit;text-decoration:none}
        a:focus-visible,button:focus-visible,input:focus-visible{outline:3px solid rgba(81,70,201,.35);outline-offset:3px}
        img{max-width:100%;display:block}
        button,input{font:inherit}
        button{cursor:pointer;border:0}
        .container{width:min(var(--max),calc(100% - 48px));margin:auto}
        .site-header{background:rgba(251,250,246,.96);border-bottom:1px solid var(--line);position:sticky;top:0;z-index:20}
        .nav-wrap{min-height:76px;display:flex;align-items:center;gap:28px}
        .brand{display:flex;align-items:center;gap:11px;min-width:230px}
        .brand-mark{width:38px;height:38px;border-radius:12px;background:var(--dark);color:var(--lime);display:grid;place-items:center;font-weight:800;letter-spacing:-1px}
        .brand-text{font-size:15px;font-weight:800;line-height:1.25;max-width:185px}
        .main-nav{display:flex;align-items:center;gap:21px;flex:1}
        .main-nav a{font-size:13px;color:#5e6169;position:relative;padding:25px 0;white-space:nowrap}
        .main-nav a:after{content:"";position:absolute;left:0;right:100%;bottom:17px;height:3px;border-radius:3px;background:var(--lime-deep);transition:.25s}
        .main-nav a:hover,.main-nav a.active{color:var(--ink)}
        .main-nav a:hover:after,.main-nav a.active:after{right:0}
        .btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:46px;padding:0 21px;border-radius:12px;font-weight:750;font-size:14px;transition:.25s ease;border:1px solid transparent}
        .btn-primary{background:var(--lime);color:#1a2410;box-shadow:0 8px 18px rgba(142,189,24,.19)}
        .btn-primary:hover{background:var(--lime-deep);transform:translateY(-2px);box-shadow:0 12px 24px rgba(142,189,24,.27)}
        .btn-ghost{border-color:#d9d9d0;background:var(--white);color:var(--ink)}
        .btn-ghost:hover{border-color:var(--lime-deep);background:#f4f9e8}
        .menu-toggle{display:none;background:none;font-size:24px;color:var(--ink)}
        .page-hero{padding:76px 0 68px;background:var(--dark);color:var(--white);position:relative;overflow:hidden}
        .page-hero:after{content:"";position:absolute;width:430px;height:430px;border-radius:50%;right:-130px;top:-210px;background:var(--indigo);opacity:.7}
        .hero-inner{position:relative;z-index:1;display:grid;grid-template-columns:1.15fr .85fr;gap:70px;align-items:end}
        .eyebrow{display:inline-flex;align-items:center;gap:8px;color:var(--lime);font-size:13px;font-weight:800;letter-spacing:.04em;margin-bottom:18px}
        .eyebrow i{width:8px;height:8px;border-radius:50%;background:var(--lime);display:block}
        h1,h2,h3,p{margin-top:0}
        h1{font-size:clamp(34px,5vw,56px);line-height:1.2;letter-spacing:-.04em;margin-bottom:22px;font-weight:800}
        h2{font-size:clamp(27px,3vw,36px);line-height:1.3;letter-spacing:-.025em;margin-bottom:14px;font-weight:800}
        h3{font-size:20px;line-height:1.4;margin-bottom:9px}
        .hero-copy{font-size:18px;color:#c8c9d1;max-width:700px;line-height:1.85;margin-bottom:28px}
        .hero-actions{display:flex;gap:12px;flex-wrap:wrap}
        .hero-actions .btn-ghost{background:transparent;border-color:#5b5d6b;color:#fff}
        .hero-actions .btn-ghost:hover{background:#fff;color:var(--ink)}
        .hero-note{border-left:3px solid var(--lime);padding-left:22px;color:#d9dae0;max-width:300px;font-size:14px}
        .section{padding:92px 0}
        .section-soft{background:var(--soft)}
        .section-head{display:flex;justify-content:space-between;align-items:end;gap:25px;margin-bottom:34px}
        .section-intro{color:var(--muted);max-width:530px;margin:0}
        .kicker{font-size:12px;text-transform:uppercase;letter-spacing:.12em;color:var(--indigo);font-weight:800;margin-bottom:9px}
        .news-layout{display:grid;grid-template-columns:.95fr 1.05fr;gap:28px;align-items:stretch}
        .feature-news{background:var(--dark);color:#fff;border-radius:24px;padding:34px;min-height:405px;display:flex;flex-direction:column;justify-content:space-between;position:relative;overflow:hidden;box-shadow:var(--shadow)}
        .feature-news:before{content:"";position:absolute;width:210px;height:210px;border-radius:50%;background:var(--indigo);right:-60px;top:-70px;opacity:.8}
        .feature-news>*{position:relative;z-index:1}
        .feature-meta{display:flex;gap:10px;align-items:center;font-size:13px;color:#c7c8d0}
        .tag{display:inline-flex;align-items:center;padding:5px 10px;border-radius:20px;background:#e9edcf;color:#4f651b;font-size:12px;font-weight:800}
        .tag-purple{background:#e8e6ff;color:var(--indigo)}
        .feature-news h3{font-size:28px;max-width:470px;margin:25px 0 13px}
        .feature-news p{color:#c3c5ce;font-size:14px;max-width:470px}
        .text-link{color:var(--indigo);font-size:14px;font-weight:800}
        .feature-news .text-link{color:var(--lime)}
        .news-list{border-top:1px solid var(--line)}
        .news-item{display:grid;grid-template-columns:96px 1fr 28px;gap:18px;align-items:center;padding:20px 0;border-bottom:1px solid var(--line);transition:.2s}
        .news-item:hover{padding-left:8px;border-color:#c6d78b}
        .news-date{color:var(--muted);font-size:13px}
        .news-item h3{font-size:17px;margin:0 0 4px}
        .news-item p{font-size:13px;color:var(--muted);margin:0;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
        .news-arrow{font-size:22px;color:var(--indigo);text-align:right}
        .filters{display:flex;gap:10px;flex-wrap:wrap;margin-bottom:28px}
        .filter{padding:9px 16px;border:1px solid var(--line);background:#fff;border-radius:30px;color:var(--muted);font-size:13px;transition:.2s}
        .filter:hover,.filter.current{background:var(--lime);border-color:var(--lime);color:#1d2811;font-weight:700}
        .topic-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
        .topic-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:25px;min-height:190px;transition:.25s}
        .topic-card:hover{transform:translateY(-4px);border-color:#c5d983;box-shadow:var(--shadow)}
        .topic-no{display:grid;place-items:center;width:40px;height:40px;border-radius:12px;background:#ecebff;color:var(--indigo);font-weight:800;margin-bottom:17px}
        .topic-card p{color:var(--muted);font-size:14px;margin-bottom:15px}
        .timeline{max-width:860px;border-left:2px solid #d8d9d1;margin:8px auto 0;padding-left:34px}
        .timeline-item{position:relative;padding:4px 0 31px}
        .timeline-item:before{content:"";position:absolute;left:-43px;top:12px;width:15px;height:15px;border-radius:50%;background:var(--lime);border:4px solid var(--paper)}
        .timeline-item strong{display:block;font-size:18px;margin-bottom:5px}
        .timeline-item p{font-size:14px;color:var(--muted);margin:0}
        .faq-list{max-width:850px;margin:auto;border-top:1px solid var(--line)}
        .faq-item{border-bottom:1px solid var(--line)}
        .faq-q{width:100%;background:none;padding:20px 3px;display:flex;justify-content:space-between;text-align:left;font-weight:750;color:var(--ink)}
        .faq-q span:last-child{font-size:22px;color:var(--indigo);transition:.25s}
        .faq-item.open .faq-q span:last-child{transform:rotate(45deg)}
        .faq-answer{display:none;padding:0 35px 21px 3px;line-height:1.85;color:var(--muted);font-size:14px}
        .faq-item.open .faq-answer{display:block}
        .cta{padding:0 0 92px}
        .cta-box{background:var(--lime);border-radius:24px;padding:39px 44px;display:flex;align-items:center;justify-content:space-between;gap:25px}
        .cta-box h2{margin-bottom:7px}
        .cta-box p{margin:0;color:#4d5d25}
        .cta-box .btn{background:var(--dark);color:#fff}
        .cta-box .btn:hover{background:var(--indigo)}
        .site-footer{background:var(--dark);color:#fff;padding:60px 0 22px}
        .footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:35px;padding-bottom:42px}
        .footer-brand{color:#aeb0bc;font-size:13px;max-width:280px;margin:20px 0 0}
        .footer-title{font-size:14px;font-weight:800;margin-bottom:15px;color:#fff}
        .footer-links{display:flex;flex-direction:column;gap:9px;color:#aeb0bc;font-size:13px}
        .footer-links a:hover{color:var(--lime)}
        .footer-bottom{border-top:1px solid #353744;padding-top:20px;display:flex;justify-content:space-between;gap:20px;color:#8f919d;font-size:12px}
        .footer-bottom a:hover{color:var(--lime)}
        @media(max-width:992px){
            .main-nav{gap:13px}
            .main-nav a{font-size:12px}
            .header-cta{display:none}
            .hero-inner,.news-layout{grid-template-columns:1fr;gap:30px}
            .hero-note{max-width:600px}
            .topic-grid{grid-template-columns:repeat(2,1fr)}
            .footer-grid{grid-template-columns:repeat(2,1fr)}
        }
        @media(max-width:768px){
            .container{width:min(var(--max),calc(100% - 32px))}
            .nav-wrap{min-height:68px;gap:14px}
            .brand{min-width:0;flex:1}
            .brand-text{font-size:13px}
            .main-nav{display:none;position:absolute;left:16px;right:16px;top:68px;background:var(--paper);border:1px solid var(--line);border-radius:14px;padding:8px 18px;box-shadow:var(--shadow);flex-direction:column;align-items:stretch;gap:0}
            .main-nav.open{display:flex}
            .main-nav a{padding:12px 0;border-bottom:1px solid var(--line)}
            .main-nav a:last-child{border-bottom:0}
            .main-nav a:after{bottom:7px}
            .menu-toggle{display:block}
            .page-hero{padding:58px 0}
            .section{padding:64px 0}
            .section-head{display:block}
            .section-intro{margin-top:12px}
            .feature-news{min-height:350px;padding:27px}
            .cta{padding-bottom:64px}
            .cta-box{display:block;padding:30px 25px}
            .cta-box .btn{margin-top:20px;width:100%}
        }
        @media(max-width:576px){
            h1{font-size:35px}
            h2{font-size:28px}
            .hero-copy{font-size:16px}
            .hero-actions .btn{width:100%}
            .news-item{grid-template-columns:1fr 25px;gap:8px}
            .news-date{grid-column:1/-1}
            .news-item p{white-space:normal}
            .topic-grid{grid-template-columns:1fr}
            .timeline{padding-left:24px}
            .timeline-item:before{left:-33px}
            .footer-grid{grid-template-columns:1fr;gap:28px}
            .footer-bottom{display:block}
            .footer-bottom span{display:block;margin-bottom:8px}
        }

/* 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}