/* roulang page: index */
:root{
            --pine:#123c32;
            --pine-deep:#0b2822;
            --pine-soft:#1c5b48;
            --lime:#c8f36a;
            --lime-dark:#a9d94e;
            --amber:#e39a48;
            --paper:#f5f3ed;
            --paper-2:#ebe9e0;
            --white:#fffefa;
            --ink:#17231f;
            --muted:#69756f;
            --line:#d9ddd3;
            --radius:18px;
            --radius-sm:11px;
            --shadow:0 16px 40px rgba(18,60,50,.10);
            --shadow-soft:0 7px 22px rgba(18,60,50,.07);
            --container:1200px;
        }
        *{box-sizing:border-box;margin:0;padding:0}
        html{scroll-behavior:smooth}
        body{font-family:"Noto Sans SC","Microsoft YaHei","PingFang SC",Arial,sans-serif;color:var(--ink);background:var(--paper);line-height:1.7;font-size:15px}
        a{color:inherit;text-decoration:none}
        img{display:block;max-width:100%}
        button,input{font:inherit}
        button{cursor:pointer}
        :focus-visible{outline:3px solid var(--amber);outline-offset:3px}
        .container{width:min(var(--container),calc(100% - 48px));margin:0 auto}
        .eyebrow{display:inline-flex;align-items:center;gap:8px;color:var(--pine-soft);font-size:13px;font-weight:800;letter-spacing:.06em}
        .eyebrow:before{content:"";width:8px;height:8px;border-radius:50%;background:var(--amber)}
        .section{padding:94px 0}
        .section-head{display:flex;justify-content:space-between;align-items:end;gap:30px;margin-bottom:34px}
        .section-head h2{font-size:clamp(28px,3.2vw,44px);line-height:1.2;letter-spacing:-.04em;margin-top:10px}
        .section-head p{max-width:490px;color:var(--muted)}
        .header{position:sticky;top:0;z-index:20;background:rgba(245,243,237,.94);backdrop-filter:blur(14px);border-bottom:1px solid rgba(217,221,211,.8)}
        .nav-wrap{height:76px;display:flex;align-items:center;justify-content:space-between;gap:25px}
        .brand{display:flex;align-items:center;gap:11px;white-space:nowrap}
        .brand-mark{width:38px;height:38px;border-radius:12px;background:var(--pine);display:grid;place-items:center;color:var(--lime);font-weight:900;font-size:18px;position:relative;overflow:hidden}
        .brand-mark:after{content:"";width:18px;height:4px;background:var(--amber);position:absolute;bottom:7px;left:10px;border-radius:5px}
        .brand-name{font-size:17px;font-weight:900;letter-spacing:-.03em}
        .brand-name small{display:block;color:var(--muted);font-size:10px;font-weight:600;letter-spacing:.08em;line-height:1}
        .nav{display:flex;align-items:center;gap:5px}
        .nav a{padding:10px 13px;border-radius:9px;color:#53615b;font-size:14px;font-weight:700;transition:.2s ease}
        .nav a:hover,.nav a.active{background:var(--paper-2);color:var(--pine)}
        .nav-action,.btn{display:inline-flex;align-items:center;justify-content:center;gap:9px;border:0;border-radius:10px;font-weight:800;transition:transform .2s,background .2s,box-shadow .2s}
        .nav-action{padding:11px 17px;background:var(--pine);color:var(--lime);font-size:14px}
        .nav-action:hover,.btn-primary:hover{transform:translateY(-2px);background:var(--pine-soft);box-shadow:0 8px 18px rgba(18,60,50,.18)}
        .menu-toggle{display:none;border:1px solid var(--line);background:var(--white);color:var(--pine);border-radius:9px;padding:8px 11px}
        .hero{padding:84px 0 76px;background:var(--paper);overflow:hidden}
        .hero-grid{display:grid;grid-template-columns:1.03fr .97fr;align-items:center;gap:74px}
        .hero h1{font-size:clamp(38px,5.3vw,70px);line-height:1.1;letter-spacing:-.065em;margin:18px 0 22px;max-width:670px}
        .hero h1 em{color:var(--pine-soft);font-style:normal}
        .hero-copy{font-size:18px;color:var(--muted);max-width:620px}
        .hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin:32px 0 30px}
        .btn{padding:14px 21px}
        .btn-primary{background:var(--pine);color:var(--lime)}
        .btn-secondary{border:1px solid var(--pine);color:var(--pine);background:transparent}
        .btn-secondary:hover{background:var(--pine);color:var(--lime)}
        .btn-light{background:var(--lime);color:var(--pine)}
        .btn-light:hover{background:#d6fa82;transform:translateY(-2px)}
        .trust-row{display:flex;flex-wrap:wrap;gap:20px;color:var(--muted);font-size:13px}
        .trust-row span{display:flex;align-items:center;gap:7px}
        .trust-row b{color:var(--pine);font-size:16px}
        .interface{background:var(--pine);border-radius:28px;padding:21px;box-shadow:var(--shadow);transform:rotate(1.5deg)}
        .interface-top{display:flex;justify-content:space-between;align-items:center;color:#d9ead1;font-size:12px;padding:3px 4px 17px}
        .status{display:inline-flex;align-items:center;gap:6px;color:var(--lime)}
        .status:before{content:"";width:7px;height:7px;border-radius:50%;background:var(--lime)}
        .screen{background:#e7eadc;border-radius:17px;padding:20px;color:var(--pine);min-height:360px;position:relative;overflow:hidden}
        .screen:before{content:"";position:absolute;inset:0;background-image:linear-gradient(rgba(18,60,50,.05) 1px,transparent 1px),linear-gradient(90deg,rgba(18,60,50,.05) 1px,transparent 1px);background-size:22px 22px}
        .screen-content{position:relative;z-index:1}
        .screen-label{font-size:12px;font-weight:800;color:var(--pine-soft);margin-bottom:10px}
        .screen h3{font-size:28px;line-height:1.25;margin-bottom:20px}
        .screen-panel{background:var(--white);border:1px solid #d7ddcd;border-radius:13px;padding:15px;margin-bottom:12px}
        .screen-panel strong{display:block;margin-bottom:7px}
        .bar{height:8px;border-radius:10px;background:#dce5d2;overflow:hidden}.bar i{display:block;width:72%;height:100%;background:var(--pine-soft);border-radius:10px}
        .screen-grid{display:grid;grid-template-columns:1fr 1fr;gap:12px}
        .screen-tile{padding:15px;border-radius:13px;background:var(--pine);color:#e5f1db}.screen-tile b{display:block;color:var(--lime);font-size:22px}.screen-tile small{font-size:11px;color:#b9cbb8}
        .feature-band{background:var(--pine);color:var(--white);padding:30px 0}
        .feature-band-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:25px}
        .mini-feature{display:flex;gap:13px;align-items:flex-start;border-right:1px solid rgba(255,255,255,.16);padding-right:20px}
        .mini-feature:last-child{border-right:0}.mini-icon{width:35px;height:35px;border-radius:9px;background:var(--lime);color:var(--pine);display:grid;place-items:center;font-weight:900;flex:none}
        .mini-feature strong{display:block;font-size:15px;margin-bottom:2px}.mini-feature span{font-size:12px;color:#b6c6bc}
        .feature-layout{display:grid;grid-template-columns:1fr 1.15fr;gap:65px;align-items:center}
        .feature-list{border-top:1px solid var(--line)}
        .feature-item{display:grid;grid-template-columns:52px 1fr auto;gap:20px;align-items:center;padding:21px 0;border-bottom:1px solid var(--line)}
        .feature-num{font-size:14px;color:var(--amber);font-weight:900}
        .feature-item h3{font-size:18px;margin-bottom:3px}.feature-item p{color:var(--muted);font-size:14px}
        .arrow{font-size:22px;color:var(--pine-soft);transition:.2s}.feature-item:hover .arrow{transform:translateX(5px)}
        .visual-board{background:var(--paper-2);border-radius:var(--radius);padding:25px;min-height:350px;position:relative}
        .board-window{background:var(--white);border-radius:14px;padding:18px;box-shadow:var(--shadow-soft);position:absolute;width:77%;top:38px;left:11%}
        .board-dots{display:flex;gap:5px;margin-bottom:18px}.board-dots i{width:7px;height:7px;border-radius:50%;background:var(--amber)}.board-dots i:nth-child(2){background:var(--lime-dark)}.board-dots i:nth-child(3){background:#b9c5bb}
        .board-line{height:11px;background:#e6eadf;border-radius:8px;margin:10px 0;width:70%}.board-line.short{width:40%}
        .board-boxes{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin-top:18px}.board-box{height:75px;border-radius:10px;background:var(--pine)}.board-box:nth-child(2){background:var(--lime)}.board-box:nth-child(3){background:var(--amber)}.board-box:nth-child(4){background:#dbe6d2}
        .download-section{background:var(--pine-deep);color:var(--white)}
        .download-grid{display:grid;grid-template-columns:1fr .8fr;gap:65px;align-items:center}
        .download-section .eyebrow{color:var(--lime)}.download-section h2{font-size:clamp(30px,4vw,48px);line-height:1.18;margin:14px 0 15px;letter-spacing:-.05em}.download-section p{color:#bdcec3;max-width:560px}
        .download-meta{display:flex;gap:25px;margin:25px 0;color:#c9d8ce;font-size:13px}.download-meta b{display:block;color:var(--lime);font-size:18px}
        .download-card{background:#1d4a3d;border:1px solid rgba(200,243,106,.28);border-radius:var(--radius);padding:25px}
        .download-card h3{font-size:20px;margin-bottom:18px}.device-row{display:flex;gap:8px;margin-bottom:18px}.device{flex:1;padding:11px;border:1px solid #557466;border-radius:9px;text-align:center;color:#cde0d0;font-size:13px}.device.selected{background:var(--lime);color:var(--pine);border-color:var(--lime);font-weight:800}
        .download-card .btn{width:100%;margin:10px 0 15px}.download-note{font-size:12px;color:#acc2b5;line-height:1.6}.qr-note{margin-top:16px;padding-top:15px;border-top:1px solid rgba(255,255,255,.14);font-size:12px;color:#c3d2c8}
        .steps{display:grid;grid-template-columns:repeat(4,1fr);gap:0;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
        .step{padding:29px 27px 28px 0;margin-right:25px;position:relative}.step:not(:last-child):after{content:"→";position:absolute;right:0;top:38px;color:var(--amber);font-size:23px}.step-number{color:var(--amber);font-weight:900;font-size:13px}.step h3{font-size:18px;margin:9px 0 5px}.step p{font-size:13px;color:var(--muted)}
        .updates{background:var(--paper-2)}
        .updates-layout{display:grid;grid-template-columns:1.25fr .75fr;gap:24px}
        .update-main,.update-list{background:var(--white);border:1px solid var(--line);border-radius:var(--radius);padding:27px}
        .update-main{min-height:270px;display:flex;flex-direction:column;justify-content:space-between}.update-tag,.post-tag{display:inline-block;color:var(--pine-soft);background:#e8f1dc;border-radius:5px;padding:4px 8px;font-size:11px;font-weight:800}.update-main h3{font-size:27px;line-height:1.35;margin:17px 0 8px}.update-main p{color:var(--muted);max-width:600px}.text-link{color:var(--pine-soft);font-weight:800;font-size:13px}.update-list{padding:12px 24px}.post{padding:17px 0;border-bottom:1px solid var(--line)}.post:last-child{border-bottom:0}.post h4{font-size:15px;line-height:1.45;margin:8px 0 4px}.post time{font-size:12px;color:var(--muted)}
        .empty-state{padding:34px;text-align:center;color:var(--muted);background:var(--white);border:1px dashed #bcc8bb;border-radius:var(--radius)}
        .timeline{display:grid;grid-template-columns:150px 1fr;gap:22px;align-items:start}.version{color:var(--pine);font-weight:900;font-size:18px}.version small{display:block;color:var(--muted);font-size:12px;font-weight:500;margin-top:4px}.change-log{border-left:2px solid var(--lime-dark);padding-left:24px}.change-log h3{font-size:19px;margin-bottom:8px}.change-log ul{display:flex;flex-wrap:wrap;gap:9px 24px;color:var(--muted);font-size:14px;list-style:none}.change-log li:before{content:"•";color:var(--amber);font-weight:900;margin-right:7px}
        .faq-grid{display:grid;grid-template-columns:.72fr 1.28fr;gap:75px}.faq-grid h2{font-size:38px;line-height:1.2;letter-spacing:-.05em;margin-top:12px}.faq-list details{border-top:1px solid var(--line);padding:18px 0}.faq-list details:last-child{border-bottom:1px solid var(--line)}.faq-list summary{cursor:pointer;list-style:none;font-weight:800;display:flex;justify-content:space-between;gap:20px}.faq-list summary::-webkit-details-marker{display:none}.faq-list summary:after{content:"+";color:var(--pine-soft);font-size:22px;line-height:1}.faq-list details[open] summary:after{content:"−"}.faq-list p{color:var(--muted);font-size:14px;padding:13px 30px 0 0}
        .cta{padding:70px 0}.cta-box{background:var(--lime);border-radius:var(--radius);padding:42px 50px;display:flex;align-items:center;justify-content:space-between;gap:30px}.cta-box h2{font-size:32px;line-height:1.25;color:var(--pine);letter-spacing:-.04em}.cta-box p{color:#46604b;margin-top:7px}
        .footer{background:var(--pine-deep);color:#dce8df;padding:55px 0 25px}.footer-grid{display:grid;grid-template-columns:1.2fr .8fr .8fr .8fr;gap:40px;padding-bottom:45px}.footer .brand-name{color:var(--white)}.footer .brand-name small{color:#9db4a4}.footer-intro{color:#a9bdb0;font-size:13px;max-width:270px;margin-top:18px}.footer h3{font-size:14px;color:var(--lime);margin-bottom:15px}.footer-links{list-style:none;display:grid;gap:9px}.footer-links a{font-size:13px;color:#b9c9be;transition:.2s}.footer-links a:hover{color:var(--lime)}.footer-bottom{border-top:1px solid rgba(255,255,255,.14);padding-top:20px;display:flex;justify-content:space-between;gap:20px;color:#91a99b;font-size:12px}
        @media(max-width:1024px){.hero-grid{gap:38px}.nav{gap:0}.nav a{padding:9px 8px}.feature-layout,.download-grid{gap:35px}.section{padding:75px 0}}
        @media(max-width:768px){.container{width:min(100% - 34px,var(--container))}.nav-wrap{height:68px}.menu-toggle{display:block}.nav{display:none;position:absolute;top:68px;left:17px;right:17px;background:var(--white);border:1px solid var(--line);border-radius:13px;padding:10px;box-shadow:var(--shadow);flex-direction:column;align-items:stretch}.nav.open{display:flex}.nav a{padding:12px}.nav-action{display:none}.hero{padding:57px 0}.hero-grid,.feature-layout,.download-grid,.updates-layout,.faq-grid{grid-template-columns:1fr}.hero h1{font-size:43px}.interface{max-width:560px;margin:0 auto}.feature-band-grid{grid-template-columns:1fr 1fr}.mini-feature{border-right:0}.steps{grid-template-columns:1fr 1fr}.step:nth-child(2):after{display:none}.timeline{grid-template-columns:1fr;gap:10px}.footer-grid{grid-template-columns:1.5fr 1fr 1fr}.cta-box{padding:32px;display:block}.cta-box .btn{margin-top:23px}}
        @media(max-width:520px){.section{padding:60px 0}.section-head{display:block}.section-head p{margin-top:13px}.hero h1{font-size:37px}.hero-copy{font-size:16px}.hero-actions{display:grid;grid-template-columns:1fr}.btn{width:100%}.trust-row{gap:10px;display:grid}.feature-band-grid{grid-template-columns:1fr}.feature-item{grid-template-columns:35px 1fr auto;gap:10px}.visual-board{min-height:290px}.download-meta{gap:14px}.download-card{padding:19px}.steps{display:block}.step{padding:20px 0;margin:0;border-bottom:1px solid var(--line)}.step:last-child{border-bottom:0}.step:not(:last-child):after{content:"↓";top:auto;right:5px;bottom:14px}.update-main,.update-list{padding:20px}.update-main h3{font-size:22px}.faq-grid h2{font-size:30px}.footer-grid{grid-template-columns:1fr 1fr;gap:30px}.footer-grid>div:first-child{grid-column:1/-1}.footer-bottom{display:block}.footer-bottom span{display:block;margin-top:8px}}

/* roulang page: article */
:root{
        --pine:#123c32;--pine-deep:#0b2822;--pine-soft:#1c5b48;
        --lime:#c8f36a;--lime-dark:#a9d94e;--amber:#e39a48;
        --paper:#f5f3ed;--paper-2:#ebe9e0;--white:#fffefa;
        --ink:#17231f;--muted:#69756f;--line:#d9ddd3;
        --radius:18px;--radius-sm:11px;
        --shadow:0 16px 40px rgba(18,60,50,.10);
        --shadow-soft:0 7px 22px rgba(18,60,50,.07);
        --container:1200px;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{margin:0;background:var(--paper);color:var(--ink);font-family:"Noto Sans SC","Microsoft YaHei","PingFang SC",Arial,sans-serif;font-size:15px;line-height:1.75}
    a{color:inherit;text-decoration:none}
    a:focus,button:focus,input:focus{outline:3px solid rgba(200,243,106,.8);outline-offset:3px}
    img{display:block;max-width:100%}
    button,input{font:inherit}
    button{cursor:pointer}
    .container{width:min(var(--container),calc(100% - 48px));margin:0 auto}
    .header{position:sticky;top:0;z-index:20;background:rgba(245,243,237,.95);backdrop-filter:blur(14px);border-bottom:1px solid rgba(217,221,211,.85)}
    .nav-wrap{height:76px;display:flex;align-items:center;justify-content:space-between;gap:25px}
    .brand{display:flex;align-items:center;gap:11px;white-space:nowrap}
    .brand-mark{width:38px;height:38px;border-radius:12px;background:var(--pine);display:grid;place-items:center;color:var(--lime);font-weight:900;font-size:18px;position:relative;overflow:hidden}
    .brand-mark:after{content:"";width:18px;height:4px;background:var(--amber);position:absolute;bottom:7px;left:10px;border-radius:5px}
    .brand-name{font-size:17px;font-weight:900;letter-spacing:-.03em}
    .brand-name small{display:block;color:var(--muted);font-size:10px;font-weight:600;letter-spacing:.08em;line-height:1}
    .nav{display:flex;align-items:center;gap:5px}
    .nav a{padding:10px 13px;border-radius:9px;color:#53615b;font-size:14px;font-weight:700;transition:.2s ease}
    .nav a:hover,.nav a.active{background:var(--paper-2);color:var(--pine)}
    .nav-action,.btn{display:inline-flex;align-items:center;justify-content:center;gap:9px;border:0;border-radius:10px;font-weight:800;transition:transform .2s,background .2s,box-shadow .2s}
    .nav-action{padding:11px 17px;background:var(--pine);color:var(--lime);font-size:14px}
    .nav-action:hover,.btn-primary:hover{transform:translateY(-2px);background:var(--pine-soft);box-shadow:0 8px 18px rgba(18,60,50,.18)}
    .menu-toggle{display:none;border:1px solid var(--line);background:var(--white);color:var(--pine);border-radius:9px;padding:8px 11px}
    .article-hero{padding:55px 0 48px;background:var(--paper-2);border-bottom:1px solid var(--line)}
    .crumbs{display:flex;flex-wrap:wrap;gap:9px;align-items:center;color:var(--muted);font-size:13px;margin-bottom:25px}
    .crumbs a:hover{color:var(--pine-soft)}
    .crumbs .slash{color:#a0aaa3}
    .article-hero-inner{max-width:900px}
    .eyebrow{display:inline-flex;align-items:center;gap:8px;color:var(--pine-soft);font-size:13px;font-weight:800;letter-spacing:.05em}
    .eyebrow:before{content:"";width:8px;height:8px;border-radius:50%;background:var(--amber)}
    .article-hero h1{font-size:clamp(32px,5vw,60px);line-height:1.2;letter-spacing:-.055em;margin:15px 0 17px;max-width:900px}
    .article-lead{max-width:760px;color:var(--muted);font-size:17px;margin:0 0 24px}
    .article-meta{display:flex;flex-wrap:wrap;gap:9px 24px;color:var(--muted);font-size:13px}
    .meta-item{display:flex;align-items:center;gap:7px}
    .meta-item strong{color:var(--pine);font-weight:800}
    .tag{display:inline-flex;align-items:center;background:#e8f1dc;color:var(--pine-soft);border-radius:6px;padding:4px 9px;font-size:12px;font-weight:800}
    .article-section{padding:66px 0 90px}
    .article-layout{display:grid;grid-template-columns:minmax(0,790px) 280px;gap:58px;align-items:start}
    .article-main{min-width:0}
    .article-content{background:var(--white);border:1px solid var(--line);border-radius:var(--radius);padding:clamp(24px,4vw, fiftypx);padding:clamp(24px,4vw,50px);box-shadow:var(--shadow-soft)}
    .article-content h2{font-size:30px;line-height:1.35;color:var(--pine);margin:34px 0 14px;letter-spacing:-.035em}
    .article-content h3{font-size:21px;line-height:1.45;color:var(--pine);margin:27px 0 10px}
    .article-content p{margin:0 0 18px}
    .article-content ul,.article-content ol{padding-left:1.45em;margin:12px 0 22px}
    .article-content li{margin:7px 0}
    .article-content blockquote{margin:26px 0;padding:17px 20px;border-left:4px solid var(--amber);background:#fff7e8;color:#5b554a;border-radius:0 var(--radius-sm) var(--radius-sm) 0}
    .article-content img{border-radius:var(--radius-sm);margin:25px auto}
    .article-content table{width:100%;border-collapse:collapse;margin:24px 0;display:block;overflow-x:auto}
    .article-content th,.article-content td{padding:12px 14px;border:1px solid var(--line);text-align:left;white-space:nowrap}
    .article-content th{background:var(--paper-2);color:var(--pine)}
    .article-content code{background:var(--paper-2);padding:2px 6px;border-radius:5px;color:var(--pine-soft)}
    .article-content pre{padding:18px;background:var(--pine-deep);color:var(--lime);border-radius:var(--radius-sm);overflow:auto}
    .article-content pre code{background:none;color:inherit;padding:0}
    .article-aside{position:sticky;top:105px}
    .aside-card{background:var(--white);border:1px solid var(--line);border-radius:var(--radius);padding:23px;box-shadow:var(--shadow-soft);margin-bottom:17px}
    .aside-card h2{font-size:17px;margin:0 0 15px;color:var(--pine)}
    .toc-list{list-style:none;padding:0;margin:0}
    .toc-list li{border-bottom:1px solid var(--line)}
    .toc-list a{display:block;padding:10px 0;color:var(--muted);font-size:13px}
    .toc-list a:hover{color:var(--pine-soft);padding-left:4px}
    .download-mini{background:var(--pine);color:var(--white);border:0}
    .download-mini h2{color:var(--lime)}
    .download-mini p{color:#c4d2c9;font-size:13px}
    .btn{padding:13px 19px}
    .btn-primary{background:var(--pine);color:var(--lime)}
    .btn-light{background:var(--lime);color:var(--pine)}
    .btn-light:hover{background:#d6fa82;transform:translateY(-2px)}
    .related{margin-top:28px;padding-top:28px;border-top:1px solid var(--line)}
    .related h2{font-size:24px;color:var(--pine);margin:0 0 17px}
    .empty-state{border:1px dashed #b8c2b8;border-radius:var(--radius-sm);padding:22px;color:var(--muted);background:var(--paper)}
    .empty-state p{margin:0 0 13px}
    .cta{padding:53px 0;background:var(--pine-soft);color:var(--white)}
    .cta-inner{display:flex;align-items:center;justify-content:space-between;gap:30px}
    .cta h2{font-size:clamp(26px,3.5vw,40px);line-height:1.25;margin:0 0 9px;letter-spacing:-.04em}
    .cta p{margin:0;color:#d4e1d8}
    .cta-actions{display:flex;flex-wrap:wrap;gap:10px;flex-shrink:0}
    .footer{background:var(--pine-deep);color:var(--white);padding:55px 0 0}
    .footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:35px;padding-bottom:45px}
    .footer-intro{max-width:280px;color:#afc0b6;font-size:13px;margin-top:18px}
    .footer h3{font-size:14px;color:var(--lime);margin:4px 0 14px}
    .footer-links{list-style:none;padding:0;margin:0}
    .footer-links li{margin:7px 0}
    .footer-links a{color:#bdccc3;font-size:13px;transition:.2s}
    .footer-links a:hover{color:var(--lime);padding-left:3px}
    .footer-bottom{display:flex;justify-content:space-between;gap:20px;border-top:1px solid rgba(255,255,255,.13);padding:19px 0;color:#94a9a0;font-size:12px}
    @media(max-width:1024px){
        .nav{gap:0}.nav a{padding:9px 8px;font-size:13px}.nav-action{padding:10px 12px}
        .article-layout{grid-template-columns:minmax(0,1fr) 235px;gap:30px}
    }
    @media(max-width:768px){
        .container{width:min(var(--container),calc(100% - 32px))}
        .nav-wrap{height:68px}.menu-toggle{display:block}
        .nav{display:none;position:absolute;top:68px;left:16px;right:16px;padding:10px;background:var(--white);border:1px solid var(--line);border-radius:14px;box-shadow:var(--shadow)}
        .nav.open{display:flex;flex-direction:column;align-items:stretch}
        .nav a{padding:12px 14px}.nav-action{display:none}
        .article-hero{padding:40px 0 35px}.article-section{padding:42px 0 65px}
        .article-layout{display:block}.article-aside{position:static;margin-top:25px}
        .cta-inner{display:block}.cta-actions{margin-top:22px}
        .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
    }
    @media(max-width:520px){
        .article-hero h1{font-size:34px}.article-lead{font-size:15px}
        .article-content{padding:22px 18px}.article-content h2{font-size:25px}
        .footer-grid{grid-template-columns:1fr}.footer-bottom{display:block}.footer-bottom span{display:block;margin:5px 0}
        .cta-actions .btn{width:100%}
    }

/* roulang page: category1 */
:root{
            --pine:#123c32;
            --pine-deep:#0b2822;
            --pine-soft:#1c5b48;
            --lime:#c8f36a;
            --lime-dark:#a9d94e;
            --amber:#e39a48;
            --paper:#f5f3ed;
            --paper-2:#ebe9e0;
            --white:#fffefa;
            --ink:#17231f;
            --muted:#69756f;
            --line:#d9ddd3;
            --radius:18px;
            --radius-sm:11px;
            --shadow:0 16px 40px rgba(18,60,50,.10);
            --shadow-soft:0 7px 22px rgba(18,60,50,.07);
            --container:1200px;
        }
        *{box-sizing:border-box}
        html{scroll-behavior:smooth}
        body{margin:0;font-family:"Noto Sans SC","Microsoft YaHei","PingFang SC",Arial,sans-serif;color:var(--ink);background:var(--paper);line-height:1.7;font-size:15px}
        a{color:inherit;text-decoration:none}
        img{display:block;max-width:100%}
        button,input{font:inherit}
        button{cursor:pointer}
        h1,h2,h3,h4,p{margin-top:0}
        ul{padding:0;margin:0;list-style:none}
        .container{width:min(var(--container),calc(100% - 48px));margin:0 auto}
        .header{position:sticky;top:0;z-index:20;background:rgba(245,243,237,.95);backdrop-filter:blur(14px);border-bottom:1px solid rgba(217,221,211,.8)}
        .nav-wrap{height:76px;display:flex;align-items:center;justify-content:space-between;gap:25px}
        .brand{display:flex;align-items:center;gap:11px;white-space:nowrap}
        .brand-mark{width:38px;height:38px;border-radius:12px;background:var(--pine);display:grid;place-items:center;color:var(--lime);font-weight:900;font-size:18px;position:relative;overflow:hidden}
        .brand-mark:after{content:"";width:18px;height:4px;background:var(--amber);position:absolute;bottom:7px;left:10px;border-radius:5px}
        .brand-name{font-size:17px;font-weight:900;letter-spacing:-.03em}
        .brand-name small{display:block;color:var(--muted);font-size:10px;font-weight:600;letter-spacing:.08em;line-height:1}
        .nav{display:flex;align-items:center;gap:5px}
        .nav a{padding:10px 13px;border-radius:9px;color:#53615b;font-size:14px;font-weight:700;transition:.2s ease}
        .nav a:hover,.nav a.active{background:var(--paper-2);color:var(--pine)}
        .nav-action,.btn{display:inline-flex;align-items:center;justify-content:center;gap:9px;border:0;border-radius:10px;font-weight:800;transition:transform .2s,background .2s,box-shadow .2s}
        .nav-action{padding:11px 17px;background:var(--pine);color:var(--lime);font-size:14px}
        .nav-action:hover,.btn-primary:hover{transform:translateY(-2px);background:var(--pine-soft);box-shadow:0 8px 18px rgba(18,60,50,.18)}
        .menu-toggle{display:none;border:1px solid var(--line);background:var(--white);color:var(--pine);border-radius:9px;padding:8px 11px}
        .hero{padding:76px 0 68px;background:var(--paper);border-bottom:1px solid var(--line)}
        .hero-grid{display:grid;grid-template-columns:1fr 1fr;gap:70px;align-items:center}
        .eyebrow{display:inline-flex;align-items:center;gap:8px;color:var(--pine-soft);font-size:13px;font-weight:800;letter-spacing:.04em}
        .eyebrow:before{content:"";width:8px;height:8px;border-radius:50%;background:var(--amber)}
        .hero h1{font-size:clamp(38px,5vw,64px);line-height:1.12;letter-spacing:-.06em;margin:18px 0 20px;max-width:650px}
        .hero h1 em{font-style:normal;color:var(--pine-soft)}
        .hero-copy{font-size:18px;color:var(--muted);max-width:580px}
        .hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin:30px 0 25px}
        .btn{padding:13px 20px}
        .btn-primary{background:var(--pine);color:var(--lime)}
        .btn-secondary{border:1px solid var(--pine);color:var(--pine);background:transparent}
        .btn-secondary:hover{background:var(--pine);color:var(--lime)}
        .btn-light{background:var(--lime);color:var(--pine)}
        .btn-light:hover{background:#d6fa82;transform:translateY(-2px)}
        .crumbs{display:flex;align-items:center;gap:9px;color:var(--muted);font-size:13px;margin-bottom:25px}
        .crumbs a:hover{color:var(--pine-soft)}
        .hero-note{display:flex;gap:18px;flex-wrap:wrap;color:var(--muted);font-size:13px}
        .hero-note span{display:inline-flex;align-items:center;gap:7px}
        .hero-note i{width:7px;height:7px;border-radius:50%;background:var(--amber);display:inline-block}
        .interface-wrap{position:relative;background:var(--pine);border-radius:24px;padding:22px;box-shadow:var(--shadow);transform:rotate(1deg)}
        .interface-top{display:flex;justify-content:space-between;align-items:center;color:#d6e6da;font-size:12px;margin-bottom:16px}
        .status-dot{display:inline-flex;align-items:center;gap:6px}
        .status-dot:before{content:"";width:7px;height:7px;background:var(--lime);border-radius:50%}
        .screen{background:#eef1e8;border-radius:15px;padding:18px;color:var(--ink);min-height:305px}
        .screen-head{display:flex;justify-content:space-between;align-items:center;margin-bottom:18px}
        .screen-head strong{font-size:19px;color:var(--pine)}
        .screen-chip{background:var(--lime);padding:4px 8px;border-radius:6px;font-size:11px;font-weight:800}
        .screen-main{display:grid;grid-template-columns:1.25fr .75fr;gap:12px}
        .screen-panel{background:var(--white);border:1px solid #dfe5d8;border-radius:10px;padding:13px}
        .screen-panel.tall{min-height:190px}
        .panel-title{font-size:12px;color:var(--muted);margin-bottom:13px}
        .game-line{height:11px;background:#dce5d6;border-radius:5px;margin:9px 0}
        .game-line.wide{width:85%}.game-line.short{width:55%}
        .control-block{height:43px;background:var(--pine-soft);border-radius:8px;margin-top:16px;position:relative}
        .control-block:after{content:"";position:absolute;width:35%;height:7px;left:12px;top:18px;border-radius:5px;background:var(--lime)}
        .side-stat{padding:10px 0;border-bottom:1px solid var(--line)}
        .side-stat:last-child{border:0}
        .side-stat b{display:block;color:var(--pine);font-size:16px}
        .side-stat span{font-size:11px;color:var(--muted)}
        .section{padding:88px 0}
        .section-head{display:flex;justify-content:space-between;align-items:end;gap:30px;margin-bottom:32px}
        .section-head h2{font-size:clamp(28px,3.2vw,43px);line-height:1.2;letter-spacing:-.04em;margin:10px 0 0}
        .section-head p{max-width:500px;color:var(--muted);margin:0}
        .feature-band{background:var(--pine);color:var(--white);padding:28px 0}
        .feature-band-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
        .mini-feature{display:flex;gap:12px;align-items:flex-start;border-right:1px solid rgba(255,255,255,.16);padding-right:18px}
        .mini-feature:last-child{border-right:0}
        .mini-icon{width:30px;height:30px;border-radius:8px;background:var(--lime);color:var(--pine);display:grid;place-items:center;font-weight:900;flex:none}
        .mini-feature strong{display:block;font-size:15px;margin-bottom:2px}
        .mini-feature span{font-size:12px;color:#b6c6bc}
        .annotated{display:grid;grid-template-columns:1.05fr .95fr;gap:70px;align-items:center}
        .device-stage{background:var(--paper-2);border-radius:var(--radius);padding:34px;min-height:370px;display:grid;place-items:center;position:relative;overflow:hidden}
        .device-stage:before{content:"";position:absolute;width:280px;height:280px;border:1px dashed #bdc9bb;border-radius:50%}
        .device-card{position:relative;width:min(100%,390px);background:var(--white);border:1px solid var(--line);border-radius:16px;padding:17px;box-shadow:var(--shadow-soft)}
        .device-bar{display:flex;justify-content:space-between;color:var(--muted);font-size:12px;margin-bottom:13px}
        .device-content{display:grid;grid-template-columns:1.25fr .75fr;gap:9px}
        .device-box{border-radius:9px;background:#e9eee3;min-height:125px;padding:12px}
        .device-box.dark{background:var(--pine);color:var(--white)}
        .device-box strong{font-size:13px}
        .device-box p{font-size:11px;color:var(--muted);margin:8px 0}
        .device-box.dark p{color:#bfd1c5}
        .device-bars{height:9px;background:var(--lime);border-radius:4px;margin-top:14px;width:65%}
        .callout{position:absolute;right:16px;top:62px;background:var(--amber);color:var(--pine-deep);padding:7px 10px;border-radius:7px;font-size:11px;font-weight:800;box-shadow:var(--shadow-soft)}
        .callout.two{left:16px;bottom:57px;right:auto;background:var(--lime)}
        .guide-list{border-top:1px solid var(--line)}
        .guide-item{display:grid;grid-template-columns:45px 1fr;gap:17px;padding:20px 0;border-bottom:1px solid var(--line)}
        .guide-item b{color:var(--amber);font-size:14px}
        .guide-item h3{font-size:18px;margin:0 0 4px}
        .guide-item p{color:var(--muted);font-size:14px;margin:0}
        .preparation{background:var(--paper-2)}
        .prep-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
        .prep-card,.version-card{background:var(--white);border:1px solid var(--line);border-radius:var(--radius);padding:25px;transition:.2s}
        .prep-card:hover,.version-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-soft)}
        .prep-card .number{color:var(--amber);font-size:13px;font-weight:900}
        .prep-card h3{font-size:19px;margin:12px 0 7px}
        .prep-card p{color:var(--muted);font-size:14px;margin:0}
        .version-layout{display:grid;grid-template-columns:.8fr 1.2fr;gap:28px}
        .version-card{display:flex;align-items:center;gap:18px}
        .version-badge{width:48px;height:48px;border-radius:13px;background:var(--lime);color:var(--pine);display:grid;place-items:center;font-weight:900}
        .version-card h3{font-size:18px;margin:0 0 3px}
        .version-card p{color:var(--muted);font-size:13px;margin:0}
        .notice{background:var(--pine);color:var(--white);border-radius:var(--radius);padding:28px}
        .notice h3{font-size:21px;margin-bottom:8px}
        .notice p{color:#c0d0c5;margin-bottom:18px;font-size:14px}
        .notice .btn{width:100%}
        .faq-grid{display:grid;grid-template-columns:.8fr 1.2fr;gap:70px}
        .faq-intro p{color:var(--muted);max-width:390px}
        .faq-list{border-top:1px solid var(--line)}
        .faq-list details{border-bottom:1px solid var(--line);padding:18px 0}
        .faq-list summary{cursor:pointer;list-style:none;font-size:17px;font-weight:800;padding-right:28px;position:relative}
        .faq-list summary::-webkit-details-marker{display:none}
        .faq-list summary:after{content:"+";position:absolute;right:2px;color:var(--pine-soft);font-size:23px;font-weight:400}
        .faq-list details[open] summary:after{content:"−"}
        .faq-list details p{color:var(--muted);font-size:14px;margin:12px 30px 2px 0}
        .cta{background:var(--lime);padding:48px 0}
        .cta-inner{display:flex;justify-content:space-between;align-items:center;gap:30px}
        .cta h2{font-size:clamp(27px,3.5vw,42px);line-height:1.2;letter-spacing:-.04em;margin:0 0 8px;color:var(--pine)}
        .cta p{color:#46604f;margin:0}
        .cta-actions{display:flex;gap:10px;flex-wrap:wrap}
        .cta .btn-primary{background:var(--pine)}
        .footer{background:var(--pine-deep);color:var(--white);padding:58px 0 22px}
        .footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:35px}
        .footer .brand-name{color:var(--white)}
        .footer .brand-name small{color:#a9bdb0}
        .footer-intro{color:#adc0b5;font-size:13px;max-width:270px;margin-top:18px}
        .footer h3{font-size:14px;color:var(--lime);margin:4px 0 14px}
        .footer-links{display:grid;gap:8px}
        .footer-links a{color:#c0cec5;font-size:13px;transition:.2s}
        .footer-links a:hover{color:var(--lime);padding-left:3px}
        .footer-bottom{border-top:1px solid rgba(255,255,255,.13);margin-top:42px;padding-top:18px;display:flex;justify-content:space-between;gap:20px;color:#91a69a;font-size:12px}
        :focus-visible{outline:3px solid var(--amber);outline-offset:3px}
        @media(max-width:1024px){
            .nav{gap:0}.nav a{padding:9px 8px;font-size:13px}.nav-action{padding:10px 12px}
            .hero-grid,.annotated{gap:38px}.feature-band-grid{grid-template-columns:repeat(2,1fr)}
            .mini-feature:nth-child(2){border-right:0}.mini-feature{padding-bottom:12px}
            .faq-grid{gap:38px}.footer-grid{grid-template-columns:1.3fr 1fr 1fr}
        }
        @media(max-width:768px){
            .container{width:min(var(--container),calc(100% - 32px))}
            .nav-wrap{height:68px}.menu-toggle{display:block}
            .nav{display:none;position:absolute;top:68px;left:16px;right:16px;background:var(--white);border:1px solid var(--line);border-radius:14px;padding:9px;box-shadow:var(--shadow)}
            .nav.open{display:grid}.nav a{padding:12px 13px}
            .nav-action{display:none}
            .hero{padding:54px 0}.hero-grid,.annotated,.version-layout,.faq-grid{grid-template-columns:1fr}
            .hero h1{font-size:clamp(36px,10vw,54px)}
            .hero-copy{font-size:16px}.interface-wrap{max-width:550px;margin:auto}
            .section{padding:64px 0}.section-head{display:block;margin-bottom:25px}.section-head p{margin-top:12px}
            .feature-band-grid{grid-template-columns:1fr 1fr}
            .mini-feature{border-right:0;border-bottom:1px solid rgba(255,255,255,.16);padding:5px 0 17px}
            .prep-grid{grid-template-columns:1fr}.faq-intro{margin-bottom:5px}
            .cta-inner{display:block}.cta-actions{margin-top:23px}
            .footer-grid{grid-template-columns:1fr 1fr}.footer-grid>div:first-child{grid-column:1/-1}
            .footer-bottom{display:block}.footer-bottom span{display:block;margin-top:7px}
        }
        @media(max-width:520px){
            .container{width:calc(100% - 28px)}.brand-name{font-size:15px}
            .hero-actions,.cta-actions{display:grid}.hero-actions .btn,.cta-actions .btn{width:100%}
            .screen-main,.device-content{grid-template-columns:1fr}.screen-panel.tall{min-height:145px}
            .interface-wrap{padding:13px}.screen{padding:13px}.device-stage{padding:18px;min-height:320px}
            .callout{right:6px;top:38px}.callout.two{left:6px;bottom:28px}
            .feature-band-grid{grid-template-columns:1fr}.mini-feature{border-bottom:1px solid rgba(255,255,255,.16)}
            .mini-feature:last-child{border:0}.footer-grid{grid-template-columns:1fr}
            .footer-grid>div:first-child{grid-column:auto}
        }

/* roulang page: category2 */
:root{
            --pine:#123c32;
            --pine-deep:#0b2822;
            --pine-soft:#1c5b48;
            --lime:#c8f36a;
            --lime-dark:#a9d94e;
            --amber:#e39a48;
            --paper:#f5f3ed;
            --paper-2:#ebe9e0;
            --white:#fffefa;
            --ink:#17231f;
            --muted:#69756f;
            --line:#d9ddd3;
            --danger:#b85c45;
            --radius:18px;
            --radius-sm:11px;
            --shadow:0 16px 40px rgba(18,60,50,.10);
            --shadow-soft:0 7px 22px rgba(18,60,50,.07);
            --container:1200px;
        }
        *,*::before,*::after{box-sizing:border-box}
        html{scroll-behavior:smooth}
        body{margin:0;font-family:"Noto Sans SC","Microsoft YaHei","PingFang SC",Arial,sans-serif;color:var(--ink);background:var(--paper);line-height:1.7;font-size:15px}
        a{color:inherit;text-decoration:none}
        a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible{outline:3px solid rgba(200,243,106,.8);outline-offset:3px}
        img{display:block;max-width:100%}
        button,input,select{font:inherit}
        button{cursor:pointer}
        .container{width:min(var(--container),calc(100% - 48px));margin:0 auto}
        .header{position:sticky;top:0;z-index:20;background:rgba(245,243,237,.95);backdrop-filter:blur(14px);border-bottom:1px solid rgba(217,221,211,.8)}
        .nav-wrap{height:76px;display:flex;align-items:center;justify-content:space-between;gap:25px}
        .brand{display:flex;align-items:center;gap:11px;white-space:nowrap}
        .brand-mark{width:38px;height:38px;border-radius:12px;background:var(--pine);display:grid;place-items:center;color:var(--lime);font-weight:900;font-size:18px;position:relative;overflow:hidden}
        .brand-mark:after{content:"";width:18px;height:4px;background:var(--amber);position:absolute;bottom:7px;left:10px;border-radius:5px}
        .brand-name{font-size:17px;font-weight:900;letter-spacing:-.03em}
        .brand-name small{display:block;color:var(--muted);font-size:10px;font-weight:600;letter-spacing:.08em;line-height:1}
        .nav{display:flex;align-items:center;gap:5px}
        .nav a{padding:10px 13px;border-radius:9px;color:#53615b;font-size:14px;font-weight:700;transition:.2s ease}
        .nav a:hover,.nav a.active{background:var(--paper-2);color:var(--pine)}
        .nav-action,.btn{display:inline-flex;align-items:center;justify-content:center;gap:9px;border:0;border-radius:10px;font-weight:800;transition:transform .2s,background .2s,box-shadow .2s,color .2s}
        .nav-action{padding:11px 17px;background:var(--pine);color:var(--lime);font-size:14px}
        .nav-action:hover,.btn-primary:hover{transform:translateY(-2px);background:var(--pine-soft);box-shadow:0 8px 18px rgba(18,60,50,.18)}
        .menu-toggle{display:none;border:1px solid var(--line);background:var(--white);color:var(--pine);border-radius:9px;padding:8px 11px}
        .eyebrow{display:inline-flex;align-items:center;gap:8px;color:var(--pine-soft);font-size:13px;font-weight:800;letter-spacing:.04em}
        .eyebrow:before{content:"";width:8px;height:8px;border-radius:50%;background:var(--amber)}
        .hero{padding:72px 0 62px;background:var(--paper-2);border-bottom:1px solid var(--line)}
        .hero-grid{display:grid;grid-template-columns:1.02fr .98fr;align-items:center;gap:70px}
        .hero h1{font-size:clamp(36px,5vw,64px);line-height:1.12;letter-spacing:-.065em;margin:17px 0 20px;max-width:680px}
        .hero h1 em{font-style:normal;color:var(--pine-soft)}
        .hero-copy{font-size:18px;color:var(--muted);max-width:610px}
        .hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin:29px 0 0}
        .btn{padding:14px 21px}
        .btn-primary{background:var(--pine);color:var(--lime)}
        .btn-secondary{border:1px solid var(--pine);color:var(--pine);background:transparent}
        .btn-secondary:hover{background:var(--pine);color:var(--lime)}
        .btn-light{background:var(--lime);color:var(--pine)}
        .btn-light:hover{background:#d6fa82;transform:translateY(-2px)}
        .crumbs{padding:22px 0 0;color:var(--muted);font-size:13px}
        .crumbs a{color:var(--pine-soft);font-weight:700}
        .crumbs span{margin:0 8px;color:#9aa59e}
        .download-visual{position:relative;min-height:380px;background:var(--pine);border-radius:26px;padding:26px;overflow:hidden;box-shadow:var(--shadow)}
        .download-visual:before{content:"";position:absolute;inset:0;background-image:linear-gradient(rgba(200,243,106,.08) 1px,transparent 1px),linear-gradient(90deg,rgba(200,243,106,.08) 1px,transparent 1px);background-size:28px 28px;opacity:.55}
        .device-panel{position:relative;z-index:1;width:min(100%,390px);margin:18px auto 0;background:var(--white);color:var(--ink);border-radius:18px;padding:22px;box-shadow:0 22px 40px rgba(0,0,0,.2)}
        .panel-top{display:flex;justify-content:space-between;align-items:center;border-bottom:1px solid var(--line);padding-bottom:15px;margin-bottom:19px}
        .panel-top strong{font-size:18px;color:var(--pine)}
        .status{display:inline-flex;align-items:center;gap:6px;color:var(--pine-soft);font-size:12px;font-weight:800}
        .status:before{content:"";width:7px;height:7px;border-radius:50%;background:var(--lime-dark)}
        .panel-line{height:10px;background:#e9eee6;border-radius:8px;margin:11px 0}
        .panel-line.short{width:57%}
        .panel-line.mid{width:78%}
        .panel-data{display:grid;grid-template-columns:repeat(2,1fr);gap:10px;margin:21px 0}
        .data-box{background:var(--paper);border-radius:10px;padding:12px}
        .data-box small{display:block;color:var(--muted);font-size:11px}
        .data-box b{display:block;color:var(--pine);font-size:16px;margin-top:3px}
        .visual-note{position:absolute;z-index:2;left:25px;bottom:24px;background:var(--lime);color:var(--pine);padding:8px 12px;border-radius:8px;font-size:12px;font-weight:900}
        .section{padding:88px 0}
        .section-head{display:flex;justify-content:space-between;align-items:end;gap:30px;margin-bottom:32px}
        .section-head h2{font-size:clamp(28px,3.2vw,44px);line-height:1.2;letter-spacing:-.04em;margin:10px 0 0}
        .section-head p{max-width:510px;color:var(--muted);margin:0}
        .download-layout{display:grid;grid-template-columns:1.06fr .94fr;gap:28px;align-items:start}
        .download-card{background:var(--pine-deep);color:var(--white);border-radius:var(--radius);padding:30px;box-shadow:var(--shadow)}
        .download-card h2{font-size:30px;line-height:1.25;margin:13px 0 9px}
        .download-card p{color:#c1d0c6;margin:0 0 23px}
        .download-card .eyebrow{color:var(--lime)}
        .device-tabs{display:flex;gap:8px;flex-wrap:wrap;margin:20px 0}
        .device-tabs button{border:1px solid rgba(255,255,255,.25);background:transparent;color:#d6e0d8;padding:9px 14px;border-radius:8px;font-size:13px;transition:.2s}
        .device-tabs button:hover,.device-tabs button.active{background:var(--lime);color:var(--pine);border-color:var(--lime)}
        .field-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:12px;margin:21px 0}
        .field{border:1px solid rgba(255,255,255,.15);background:rgba(255,255,255,.06);border-radius:10px;padding:12px 14px}
        .field small{display:block;color:#a9beb1;font-size:11px;margin-bottom:2px}
        .field strong{font-size:15px;color:var(--white)}
        .download-card .btn{width:100%;margin-top:4px}
        .source-note{display:flex;gap:9px;color:#a9beb1;font-size:12px;margin-top:16px}
        .source-note b{color:var(--lime)}
        .qr-card{background:var(--white);border:1px solid var(--line);border-radius:var(--radius);padding:30px;box-shadow:var(--shadow-soft)}
        .qr-card h3{font-size:23px;margin:0 0 8px}
        .qr-card>p{color:var(--muted);margin:0 0 23px}
        .qr-placeholder{width:150px;height:150px;border:10px solid var(--pine);background:repeating-linear-gradient(45deg,#fff 0 7px,#dfe9da 7px 11px);display:grid;place-items:center;margin:0 auto 20px;color:var(--pine);text-align:center;font-size:12px;font-weight:800}
        .qr-help{background:var(--paper);border-left:3px solid var(--amber);padding:12px 14px;color:var(--muted);font-size:13px}
        .info-strip{display:grid;grid-template-columns:repeat(3,1fr);gap:1px;background:var(--line);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden}
        .info-item{background:var(--white);padding:24px}
        .info-item b{display:block;color:var(--pine-soft);font-size:24px;margin-bottom:4px}
        .info-item strong{display:block;font-size:16px;margin-bottom:5px}
        .info-item span{font-size:13px;color:var(--muted)}
        .steps{display:grid;grid-template-columns:repeat(4,1fr);gap:0;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
        .step{padding:27px 25px 27px 0;margin-right:25px;border-right:1px solid var(--line);position:relative}
        .step:last-child{border-right:0;margin-right:0}
        .step-num{color:var(--amber);font-size:13px;font-weight:900;letter-spacing:.08em}
        .step h3{font-size:19px;margin:12px 0 7px}
        .step p{color:var(--muted);font-size:14px;margin:0}
        .notice{display:flex;gap:15px;align-items:flex-start;background:#f6eadc;border:1px solid #ead5bc;border-radius:var(--radius-sm);padding:20px 22px;color:#6f553d}
        .notice-icon{width:30px;height:30px;flex:none;border-radius:50%;background:var(--amber);color:var(--white);display:grid;place-items:center;font-weight:900}
        .notice strong{display:block;color:#704326;margin-bottom:3px}
        .guide-layout{display:grid;grid-template-columns:1fr 1fr;gap:25px}
        .guide-card{background:var(--white);border:1px solid var(--line);border-radius:var(--radius);padding:27px}
        .guide-card h3{margin:0 0 15px;font-size:21px}
        .guide-card ul{list-style:none;margin:0;padding:0}
        .guide-card li{display:flex;gap:10px;padding:11px 0;border-bottom:1px solid var(--line);color:var(--muted)}
        .guide-card li:last-child{border-bottom:0}
        .guide-card li:before{content:"✓";color:var(--pine-soft);font-weight:900}
        .faq-list{max-width:850px;margin:0 auto}
        .faq-list details{background:var(--white);border:1px solid var(--line);border-radius:var(--radius-sm);margin-bottom:11px;padding:0 20px}
        .faq-list details[open]{border-color:#b9c9b6;box-shadow:var(--shadow-soft)}
        .faq-list summary{cursor:pointer;list-style:none;font-size:16px;font-weight:800;padding:19px 28px 19px 0;position:relative}
        .faq-list summary::-webkit-details-marker{display:none}
        .faq-list summary:after{content:"+";position:absolute;right:0;color:var(--pine-soft);font-size:23px;font-weight:400;top:15px}
        .faq-list details[open] summary:after{content:"−"}
        .faq-answer{color:var(--muted);padding:0 0 19px;font-size:14px}
        .cta{background:var(--pine);color:var(--white);border-radius:var(--radius);padding:42px 48px;display:flex;justify-content:space-between;align-items:center;gap:25px}
        .cta h2{font-size:clamp(26px,3.3vw,40px);line-height:1.2;margin:0 0 9px}
        .cta p{color:#bfd0c4;margin:0;max-width:620px}
        .cta-actions{display:flex;gap:10px;flex-wrap:wrap;flex:none}
        .footer{background:var(--pine-deep);color:var(--white);padding:58px 0 20px}
        .footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:35px;padding-bottom:43px}
        .footer-intro{color:#aebfb4;max-width:280px;font-size:13px;margin-top:17px}
        .footer h3{font-size:14px;margin:4px 0 14px;color:var(--lime)}
        .footer-links{list-style:none;margin:0;padding:0}
        .footer-links li{margin:9px 0}
        .footer-links a{color:#b7c6bc;font-size:13px;transition:.2s}
        .footer-links a:hover{color:var(--lime)}
        .footer-bottom{border-top:1px solid rgba(255,255,255,.14);padding-top:18px;display:flex;justify-content:space-between;gap:20px;color:#8fa59a;font-size:12px}
        @media(max-width:1024px){
            .nav{gap:0}.nav a{padding:9px 8px;font-size:13px}.nav-action{padding:10px 12px}
            .hero-grid,.download-layout{gap:35px}.steps{grid-template-columns:repeat(2,1fr)}
            .step:nth-child(2){border-right:0;margin-right:0}.step:nth-child(-n+2){border-bottom:1px solid var(--line)}
            .step:nth-child(3){padding-top:25px}
        }
        @media(max-width:768px){
            .container{width:min(var(--container),calc(100% - 32px))}
            .nav-wrap{height:68px}.menu-toggle{display:block}
            .nav{display:none;position:absolute;left:16px;right:16px;top:74px;background:var(--white);border:1px solid var(--line);box-shadow:var(--shadow);border-radius:14px;padding:9px;flex-direction:column;align-items:stretch}
            .nav.open{display:flex}.nav a{padding:12px 14px}.nav-action{display:none}
            .hero{padding:48px 0}.hero-grid,.download-layout,.guide-layout{grid-template-columns:1fr}
            .hero h1{font-size:clamp(35px,10vw,52px)}.hero-copy{font-size:16px}
            .download-visual{min-height:330px}.section{padding:64px 0}
            .section-head{display:block}.section-head p{margin-top:14px}
            .info-strip{grid-template-columns:1fr}.steps{grid-template-columns:1fr}
            .step,.step:nth-child(2){border-right:0;border-bottom:1px solid var(--line);margin:0;padding:22px 0}
            .step:last-child{border-bottom:0}.cta{display:block;padding:32px 25px}.cta-actions{margin-top:24px}
            .footer-grid{grid-template-columns:1fr 1fr;gap:28px}.footer-bottom{display:block}.footer-bottom span{display:block;margin-top:7px}
        }
        @media(max-width:520px){
            .hero-actions .btn{width:100%}.device-panel{padding:17px}.download-visual{padding:15px}
            .field-grid{grid-template-columns:1fr}.download-card,.qr-card,.guide-card{padding:22px}
            .footer-grid{grid-template-columns:1fr}.footer{padding-top:42px}
        }

/* roulang page: category3 */
:root{
            --pine:#123c32;
            --pine-deep:#0b2822;
            --pine-soft:#1c5b48;
            --lime:#c8f36a;
            --lime-dark:#a9d94e;
            --amber:#e39a48;
            --paper:#f5f3ed;
            --paper-2:#ebe9e0;
            --white:#fffefa;
            --ink:#17231f;
            --muted:#69756f;
            --line:#d9ddd3;
            --radius:18px;
            --radius-sm:11px;
            --shadow:0 16px 40px rgba(18,60,50,.10);
            --shadow-soft:0 7px 22px rgba(18,60,50,.07);
            --container:1200px;
        }
        *{box-sizing:border-box}
        html{scroll-behavior:smooth}
        body{margin:0;font-family:"Noto Sans SC","Microsoft YaHei","PingFang SC",Arial,sans-serif;color:var(--ink);background:var(--paper);line-height:1.7;font-size:15px}
        a{color:inherit;text-decoration:none}
        img{display:block;max-width:100%}
        button,input{font:inherit}
        button{cursor:pointer}
        .container{width:min(var(--container),calc(100% - 48px));margin:0 auto}
        .header{position:sticky;top:0;z-index:20;background:rgba(245,243,237,.95);backdrop-filter:blur(14px);border-bottom:1px solid rgba(217,221,211,.85)}
        .nav-wrap{height:76px;display:flex;align-items:center;justify-content:space-between;gap:24px}
        .brand{display:flex;align-items:center;gap:11px;white-space:nowrap}
        .brand-mark{width:38px;height:38px;border-radius:12px;background:var(--pine);display:grid;place-items:center;color:var(--lime);font-weight:900;font-size:18px;position:relative;overflow:hidden}
        .brand-mark:after{content:"";width:18px;height:4px;background:var(--amber);position:absolute;bottom:7px;left:10px;border-radius:5px}
        .brand-name{font-size:17px;font-weight:900;letter-spacing:-.03em}
        .brand-name small{display:block;color:var(--muted);font-size:10px;font-weight:600;letter-spacing:.08em;line-height:1}
        .nav{display:flex;align-items:center;gap:5px}
        .nav a{padding:10px 13px;border-radius:9px;color:#53615b;font-size:14px;font-weight:700;transition:.2s ease}
        .nav a:hover,.nav a.active{background:var(--paper-2);color:var(--pine)}
        .nav-action,.btn{display:inline-flex;align-items:center;justify-content:center;gap:9px;border:0;border-radius:10px;font-weight:800;transition:transform .2s,background .2s,box-shadow .2s}
        .nav-action{padding:11px 17px;background:var(--pine);color:var(--lime);font-size:14px}
        .nav-action:hover,.btn-primary:hover{transform:translateY(-2px);background:var(--pine-soft);box-shadow:0 8px 18px rgba(18,60,50,.18)}
        .menu-toggle{display:none;border:1px solid var(--line);background:var(--white);color:var(--pine);border-radius:9px;padding:8px 11px}
        .eyebrow{display:inline-flex;align-items:center;gap:8px;color:var(--pine-soft);font-size:13px;font-weight:800;letter-spacing:.06em}
        .eyebrow:before{content:"";width:8px;height:8px;border-radius:50%;background:var(--amber)}
        .page-hero{padding:72px 0 60px;background:var(--paper);border-bottom:1px solid var(--line)}
        .breadcrumb{display:flex;gap:9px;align-items:center;color:var(--muted);font-size:13px;margin-bottom:28px}
        .breadcrumb a:hover{color:var(--pine-soft)}
        .breadcrumb span{color:#a4ada5}
        .hero-inner{display:grid;grid-template-columns:1fr .85fr;gap:70px;align-items:center}
        h1{font-size:clamp(38px,5vw,64px);line-height:1.12;letter-spacing:-.065em;margin:16px 0 20px}
        .lead{font-size:18px;color:var(--muted);max-width:650px;margin:0}
        .hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px}
        .btn{padding:13px 20px}
        .btn-primary{background:var(--pine);color:var(--lime)}
        .btn-secondary{border:1px solid var(--pine);color:var(--pine);background:transparent}
        .btn-secondary:hover{background:var(--pine);color:var(--lime)}
        .btn-light{background:var(--lime);color:var(--pine)}
        .btn-light:hover{background:#d6fa82;transform:translateY(-2px)}
        a:focus-visible,button:focus-visible,input:focus-visible{outline:3px solid rgba(200,243,106,.9);outline-offset:3px}
        .guide-board{background:var(--pine);border-radius:24px;padding:25px;color:var(--white);box-shadow:var(--shadow);position:relative;overflow:hidden}
        .guide-board:before{content:"";position:absolute;inset:0;background-image:linear-gradient(rgba(200,243,106,.08) 1px,transparent 1px),linear-gradient(90deg,rgba(200,243,106,.08) 1px,transparent 1px);background-size:24px 24px;opacity:.55}
        .board-top,.board-content{position:relative;z-index:1}
        .board-top{display:flex;justify-content:space-between;align-items:center;padding-bottom:20px;border-bottom:1px solid rgba(255,255,255,.18)}
        .board-top strong{font-size:17px}
        .status{font-size:11px;color:var(--lime);background:rgba(200,243,106,.12);padding:5px 9px;border-radius:20px}
        .board-content{padding-top:22px}
        .progress-line{height:8px;border-radius:8px;background:#31594c;margin:12px 0 23px;overflow:hidden}
        .progress-line i{display:block;width:62%;height:100%;background:var(--lime);border-radius:8px}
        .board-row{display:flex;align-items:center;gap:13px;padding:13px 0;border-bottom:1px solid rgba(255,255,255,.12)}
        .board-row:last-child{border:0}
        .step-dot{width:28px;height:28px;border-radius:9px;background:var(--lime);color:var(--pine);display:grid;place-items:center;font-weight:900;font-size:13px}
        .board-row span{font-size:13px;color:#d1ddd5}
        .section{padding:88px 0}
        .section-head{display:flex;justify-content:space-between;align-items:end;gap:30px;margin-bottom:34px}
        .section-head h2{font-size:clamp(28px,3.2vw,42px);line-height:1.2;letter-spacing:-.04em;margin:10px 0 0}
        .section-head p{max-width:490px;color:var(--muted);margin:0}
        .guide-layout{display:grid;grid-template-columns:280px 1fr;gap:44px;align-items:start}
        .step-index{position:sticky;top:102px;background:var(--white);border:1px solid var(--line);border-radius:var(--radius);padding:12px}
        .step-index a{display:flex;gap:12px;align-items:center;padding:14px 13px;color:var(--muted);border-radius:10px;font-weight:700;transition:.2s}
        .step-index a:hover,.step-index a.active{background:var(--pine);color:var(--lime)}
        .index-num{font-size:12px;color:var(--amber);font-weight:900}
        .step-index a.active .index-num{color:var(--lime)}
        .steps{display:grid;gap:18px}
        .tutorial-step{display:grid;grid-template-columns:58px 1fr 190px;gap:22px;align-items:start;background:var(--white);border:1px solid var(--line);border-radius:var(--radius);padding:27px;box-shadow:var(--shadow-soft);transition:.2s}
        .tutorial-step:hover{transform:translateY(-3px);box-shadow:var(--shadow)}
        .step-number{width:48px;height:48px;border-radius:14px;background:var(--paper-2);color:var(--pine);display:grid;place-items:center;font-size:18px;font-weight:900}
        .tutorial-step h3{font-size:21px;margin:0 0 7px}
        .tutorial-step p{color:var(--muted);margin:0 0 13px}
        .step-list{padding-left:20px;margin:0;color:var(--muted);font-size:14px}
        .step-list li{margin:4px 0}
        .screen-thumb{min-height:125px;background:#e9eee3;border:1px solid #d6dfd0;border-radius:13px;padding:14px;position:relative}
        .screen-thumb:before{content:"PG";display:grid;place-items:center;height:35px;background:var(--pine);color:var(--lime);border-radius:7px;font-weight:900;font-size:13px}
        .thumb-lines{margin-top:13px;display:grid;gap:7px}
        .thumb-lines i{height:7px;background:#c7d5c2;border-radius:5px;display:block}
        .thumb-lines i:nth-child(2){width:72%}
        .thumb-lines i:nth-child(3){width:48%}
        .notice{display:flex;gap:15px;align-items:flex-start;background:#fff7e9;border:1px solid #efd5a7;border-radius:var(--radius-sm);padding:19px 21px;margin-top:28px}
        .notice-icon{color:var(--amber);font-size:20px;font-weight:900}
        .notice strong{display:block;margin-bottom:2px}
        .notice p{color:var(--muted);margin:0;font-size:14px}
        .settings-section{background:var(--paper-2)}
        .settings-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:25px}
        .setting-card{background:var(--white);border:1px solid var(--line);border-radius:var(--radius);padding:28px}
        .setting-card h3{font-size:21px;margin:0 0 17px}
        .setting-row{display:flex;justify-content:space-between;gap:18px;padding:14px 0;border-bottom:1px solid var(--line)}
        .setting-row:last-child{border-bottom:0}
        .setting-row span{color:var(--muted)}
        .setting-row b{color:var(--pine);font-size:14px;text-align:right}
        .check-list{list-style:none;padding:0;margin:0}
        .check-list li{padding:12px 0 12px 30px;border-bottom:1px solid var(--line);position:relative;color:var(--muted)}
        .check-list li:last-child{border-bottom:0}
        .check-list li:before{content:"✓";position:absolute;left:0;top:11px;width:20px;height:20px;border-radius:6px;background:var(--lime);color:var(--pine);display:grid;place-items:center;font-size:12px;font-weight:900}
        .faq-grid{display:grid;grid-template-columns:.8fr 1.2fr;gap:60px;align-items:start}
        .faq-intro h2{font-size:38px;line-height:1.2;letter-spacing:-.05em;margin:12px 0}
        .faq-intro p{color:var(--muted)}
        .faq-list{display:grid;gap:10px}
        details{background:var(--white);border:1px solid var(--line);border-radius:var(--radius-sm);padding:0 20px;transition:.2s}
        details[open]{border-color:#b8caa8;box-shadow:var(--shadow-soft)}
        summary{cursor:pointer;list-style:none;padding:18px 27px 18px 0;font-weight:800;position:relative}
        summary::-webkit-details-marker{display:none}
        summary:after{content:"+";position:absolute;right:0;color:var(--pine-soft);font-size:22px;top:13px}
        details[open] summary:after{content:"−"}
        details p{color:var(--muted);font-size:14px;margin:0 0 19px;padding-right:16px}
        .cta{background:var(--pine-deep);color:var(--white);padding:62px 0}
        .cta-inner{display:flex;justify-content:space-between;align-items:center;gap:35px}
        .cta h2{font-size:clamp(28px,4vw,44px);line-height:1.2;margin:12px 0}
        .cta p{color:#bfd0c4;margin:0;max-width:600px}
        .footer{background:var(--pine-deep);color:var(--white);padding:60px 0 22px;border-top:1px solid rgba(255,255,255,.1)}
        .footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:45px}
        .footer .brand-name{color:var(--white)}
        .footer .brand-name small{color:#a9bdb1}
        .footer-intro{color:#aebfb5;max-width:270px;font-size:14px;margin-top:19px}
        .footer h3{font-size:14px;color:var(--lime);margin:0 0 16px}
        .footer-links{list-style:none;padding:0;margin:0}
        .footer-links li{margin:9px 0}
        .footer-links a{color:#b8c7be;font-size:14px;transition:.2s}
        .footer-links a:hover{color:var(--lime)}
        .footer-bottom{display:flex;justify-content:space-between;gap:20px;border-top:1px solid rgba(255,255,255,.14);padding-top:20px;margin-top:45px;color:#8ea59a;font-size:12px}
        @media(max-width:1024px){
            .nav a{padding:9px 8px;font-size:13px}
            .nav-wrap{gap:12px}
            .hero-inner{gap:40px}
            .guide-layout{grid-template-columns:230px 1fr}
            .tutorial-step{grid-template-columns:52px 1fr}
            .screen-thumb{grid-column:2;max-width:230px}
        }
        @media(max-width:768px){
            .container{width:min(var(--container),calc(100% - 34px))}
            .nav{display:none;position:absolute;left:17px;right:17px;top:70px;background:var(--white);border:1px solid var(--line);border-radius:14px;padding:9px;box-shadow:var(--shadow)}
            .nav.open{display:grid}
            .nav a{padding:12px}
            .nav-action{display:none}
            .menu-toggle{display:block}
            .nav-wrap{height:70px}
            .page-hero{padding:48px 0 45px}
            .hero-inner,.settings-grid,.faq-grid{grid-template-columns:1fr;gap:34px}
            .section{padding:64px 0}
            .section-head{display:block;margin-bottom:25px}
            .section-head p{margin-top:12px}
            .guide-layout{grid-template-columns:1fr}
            .step-index{position:static;display:flex;overflow:auto;gap:5px;padding:7px}
            .step-index a{white-space:nowrap;padding:10px 12px;font-size:13px}
            .step-index a span:last-child{display:none}
            .tutorial-step{grid-template-columns:48px 1fr;padding:21px;gap:15px}
            .screen-thumb{grid-column:2}
            .cta-inner{display:block}
            .cta .hero-actions{margin-bottom:0}
            .footer-grid{grid-template-columns:1fr 1fr;gap:30px}
        }
        @media(max-width:520px){
            h1{font-size:38px}
            .lead{font-size:16px}
            .hero-actions .btn{width:100%}
            .tutorial-step h3{font-size:18px}
            .tutorial-step p{font-size:14px}
            .settings-card{padding:21px}
            .faq-intro h2{font-size:30px}
            .footer-grid{grid-template-columns:1fr}
            .footer-bottom{display:block}
            .footer-bottom span{display:block;margin-top:7px}
        }

/* roulang page: category4 */
:root{
            --pine:#123c32;
            --pine-deep:#0b2822;
            --pine-soft:#1c5b48;
            --lime:#c8f36a;
            --lime-dark:#a9d94e;
            --amber:#e39a48;
            --paper:#f5f3ed;
            --paper-2:#ebe9e0;
            --white:#fffefa;
            --ink:#17231f;
            --muted:#69756f;
            --line:#d9ddd3;
            --radius:18px;
            --radius-sm:11px;
            --shadow:0 16px 40px rgba(18,60,50,.10);
            --shadow-soft:0 7px 22px rgba(18,60,50,.07);
            --container:1200px;
        }
        *{box-sizing:border-box}
        html{scroll-behavior:smooth}
        body{margin:0;font-family:"Noto Sans SC","Microsoft YaHei","PingFang SC",Arial,sans-serif;color:var(--ink);background:var(--paper);line-height:1.7;font-size:15px}
        a{color:inherit;text-decoration:none}
        a:focus-visible,button:focus-visible,input:focus-visible{outline:3px solid rgba(200,243,106,.85);outline-offset:3px}
        img{display:block;max-width:100%}
        button,input{font:inherit}
        button{cursor:pointer}
        .container{width:min(var(--container),calc(100% - 48px));margin:0 auto}
        .header{position:sticky;top:0;z-index:20;background:rgba(245,243,237,.95);backdrop-filter:blur(14px);border-bottom:1px solid rgba(217,221,211,.85)}
        .nav-wrap{height:76px;display:flex;align-items:center;justify-content:space-between;gap:25px}
        .brand{display:flex;align-items:center;gap:11px;white-space:nowrap}
        .brand-mark{width:38px;height:38px;border-radius:12px;background:var(--pine);display:grid;place-items:center;color:var(--lime);font-weight:900;font-size:18px;position:relative;overflow:hidden}
        .brand-mark:after{content:"";width:18px;height:4px;background:var(--amber);position:absolute;bottom:7px;left:10px;border-radius:5px}
        .brand-name{font-size:17px;font-weight:900;letter-spacing:-.03em}
        .brand-name small{display:block;color:var(--muted);font-size:10px;font-weight:600;letter-spacing:.08em;line-height:1}
        .nav{display:flex;align-items:center;gap:5px}
        .nav a{padding:10px 13px;border-radius:9px;color:#53615b;font-size:14px;font-weight:700;transition:.2s ease}
        .nav a:hover,.nav a.active{background:var(--paper-2);color:var(--pine)}
        .nav-action,.btn{display:inline-flex;align-items:center;justify-content:center;gap:9px;border:0;border-radius:10px;font-weight:800;transition:transform .2s,background .2s,box-shadow .2s}
        .nav-action{padding:11px 17px;background:var(--pine);color:var(--lime);font-size:14px}
        .nav-action:hover,.btn-primary:hover{transform:translateY(-2px);background:var(--pine-soft);box-shadow:0 8px 18px rgba(18,60,50,.18)}
        .menu-toggle{display:none;border:1px solid var(--line);background:var(--white);color:var(--pine);border-radius:9px;padding:8px 11px}
        .hero{padding:80px 0 76px;background:var(--paper);border-bottom:1px solid var(--line)}
        .hero-grid{display:grid;grid-template-columns:1fr .82fr;gap:80px;align-items:center}
        .eyebrow{display:inline-flex;align-items:center;gap:8px;color:var(--pine-soft);font-size:13px;font-weight:800;letter-spacing:.06em}
        .eyebrow:before{content:"";width:8px;height:8px;border-radius:50%;background:var(--amber)}
        .hero h1{font-size:clamp(38px,5vw,64px);line-height:1.12;letter-spacing:-.06em;margin:18px 0 20px;max-width:700px}
        .hero h1 em{color:var(--pine-soft);font-style:normal}
        .hero-copy{font-size:18px;color:var(--muted);max-width:650px}
        .hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin:29px 0 0}
        .btn{padding:14px 21px}
        .btn-primary{background:var(--pine);color:var(--lime)}
        .btn-secondary{border:1px solid var(--pine);color:var(--pine);background:transparent}
        .btn-secondary:hover{background:var(--pine);color:var(--lime)}
        .btn-light{background:var(--lime);color:var(--pine)}
        .btn-light:hover{background:#d6fa82;transform:translateY(-2px)}
        .hero-panel{background:var(--pine);color:var(--white);border-radius:var(--radius);padding:28px;box-shadow:var(--shadow);position:relative;overflow:hidden}
        .hero-panel:before{content:"";position:absolute;width:190px;height:190px;border:1px solid rgba(200,243,106,.23);border-radius:50%;right:-55px;top:-68px}
        .panel-top{display:flex;justify-content:space-between;align-items:center;border-bottom:1px solid rgba(255,255,255,.16);padding-bottom:22px;margin-bottom:24px}
        .panel-title{font-size:18px;font-weight:900}
        .status{display:inline-flex;align-items:center;gap:7px;font-size:12px;color:var(--lime)}
        .status:before{content:"";width:7px;height:7px;border-radius:50%;background:var(--lime)}
        .news-signal{display:grid;grid-template-columns:72px 1fr;gap:16px;align-items:center;margin:20px 0}
        .signal-number{font-size:42px;line-height:1;color:var(--lime);font-weight:900}
        .signal-number small{display:block;color:#abc0b4;font-size:11px;font-weight:600;margin-top:7px}
        .signal-line{height:8px;background:#315c4e;border-radius:10px;overflow:hidden}
        .signal-line i{display:block;width:78%;height:100%;background:var(--lime);border-radius:10px}
        .panel-note{color:#bdcec3;font-size:13px;margin:0}
        .section{padding:88px 0}
        .section-head{display:flex;justify-content:space-between;align-items:end;gap:30px;margin-bottom:32px}
        .section-head h2{font-size:clamp(28px,3.2vw,43px);line-height:1.2;letter-spacing:-.04em;margin:10px 0 0}
        .section-head p{max-width:490px;color:var(--muted);margin:0}
        .feature-strip{background:var(--pine);color:var(--white);padding:27px 0}
        .feature-strip-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
        .strip-item{border-right:1px solid rgba(255,255,255,.18);padding-right:22px}
        .strip-item:last-child{border-right:0}
        .strip-item strong{display:block;font-size:16px;margin-bottom:2px}
        .strip-item span{font-size:12px;color:#b9c9bf}
        .content-layout{display:grid;grid-template-columns:1.35fr .75fr;gap:22px}
        .featured-card,.side-card,.news-item,.version-card,.empty-card{background:var(--white);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow-soft)}
        .featured-card{padding:34px;min-height:365px;display:flex;flex-direction:column;justify-content:space-between;position:relative;overflow:hidden}
        .featured-card:after{content:"PG";position:absolute;right:25px;bottom:-35px;color:#eef1e8;font-size:150px;font-weight:900;line-height:1}
        .card-content{position:relative;z-index:1}
        .post-tag,.update-tag{display:inline-block;color:var(--pine-soft);background:#e8f1dc;border-radius:5px;padding:4px 9px;font-size:11px;font-weight:800}
        .post-meta{color:var(--muted);font-size:12px;margin-left:8px}
        .featured-card h3{font-size:30px;line-height:1.35;max-width:600px;margin:20px 0 10px}
        .featured-card p{max-width:620px;color:var(--muted);margin:0}
        .text-link{color:var(--pine-soft);font-weight:800;display:inline-flex;align-items:center;gap:8px}
        .text-link:hover{color:var(--amber)}
        .side-card{padding:25px}
        .side-card h3{font-size:19px;margin:0 0 19px}
        .quick-link{display:block;padding:15px 0;border-top:1px solid var(--line)}
        .quick-link strong{display:block;font-size:14px;line-height:1.5}
        .quick-link span{display:block;color:var(--muted);font-size:12px;margin-top:4px}
        .quick-link:hover strong{color:var(--pine-soft)}
        .filter-bar{display:flex;align-items:center;justify-content:space-between;gap:20px;margin-bottom:20px}
        .filter-list{display:flex;flex-wrap:wrap;gap:8px}
        .filter{border:1px solid var(--line);border-radius:30px;background:var(--white);color:var(--muted);padding:8px 15px;font-size:13px;transition:.2s}
        .filter:hover,.filter.active{background:var(--pine);color:var(--lime);border-color:var(--pine)}
        .search-box{display:flex;align-items:center;background:var(--white);border:1px solid var(--line);border-radius:10px;padding:0 12px;min-width:220px}
        .search-box span{color:var(--muted);font-size:14px}
        .search-box input{border:0;background:transparent;outline:0;padding:10px 8px;width:100%;color:var(--ink)}
        .news-list{display:grid;gap:12px}
        .news-item{display:grid;grid-template-columns:105px 1fr auto;gap:22px;align-items:center;padding:21px 24px;transition:.2s}
        .news-item:hover{transform:translateY(-2px);box-shadow:var(--shadow)}
        .date-box{border-left:4px solid var(--amber);padding-left:13px;color:var(--muted);font-size:12px}
        .date-box b{display:block;color:var(--pine);font-size:22px;line-height:1.2}
        .news-item h3{font-size:18px;margin:0 0 4px}
        .news-item p{color:var(--muted);font-size:13px;margin:0}
        .news-arrow{font-size:22px;color:var(--pine-soft)}
        .update-section{background:var(--paper-2)}
        .update-layout{display:grid;grid-template-columns:.9fr 1.1fr;gap:25px}
        .version-card{padding:31px}
        .version-card h3{font-size:25px;margin:16px 0 8px}
        .version-card p{color:var(--muted);margin:0 0 22px}
        .version-badge{display:inline-flex;background:var(--pine);color:var(--lime);border-radius:7px;padding:6px 10px;font-size:12px;font-weight:800}
        .timeline{background:var(--white);border:1px solid var(--line);border-radius:var(--radius);padding:27px}
        .timeline-item{display:grid;grid-template-columns:95px 1fr;gap:22px;padding:0 0 25px;margin-bottom:25px;border-bottom:1px solid var(--line)}
        .timeline-item:last-child{border-bottom:0;margin-bottom:0;padding-bottom:0}
        .timeline-item time{color:var(--muted);font-size:12px}
        .timeline-item h3{font-size:16px;margin:0 0 5px}
        .timeline-item p{color:var(--muted);font-size:13px;margin:0}
        .notice{display:flex;gap:14px;align-items:flex-start;border:1px solid #e6c798;background:#fff8ea;border-radius:var(--radius-sm);padding:18px 20px;color:#75552e}
        .notice b{color:var(--amber);font-size:19px;line-height:1}
        .faq-grid{display:grid;grid-template-columns:.7fr 1.3fr;gap:70px}
        .faq-intro p{color:var(--muted);margin-top:14px}
        .faq-list{border-top:1px solid var(--line)}
        .faq-item{border-bottom:1px solid var(--line)}
        .faq-item summary{list-style:none;cursor:pointer;padding:20px 4px;font-weight:800;display:flex;justify-content:space-between;gap:15px}
        .faq-item summary::-webkit-details-marker{display:none}
        .faq-item summary:after{content:"+";font-size:22px;color:var(--pine-soft);line-height:1}
        .faq-item[open] summary:after{content:"−"}
        .faq-answer{padding:0 35px 20px 4px;color:var(--muted);font-size:14px}
        .cta{background:var(--pine-deep);color:var(--white);padding:56px 0}
        .cta-inner{display:flex;align-items:center;justify-content:space-between;gap:30px}
        .cta h2{font-size:clamp(28px,3.4vw,42px);margin:0 0 9px;letter-spacing:-.04em}
        .cta p{color:#bdcec3;margin:0}
        .cta-actions{display:flex;gap:11px;flex-wrap:wrap}
        .footer{background:#09221d;color:var(--white);padding:58px 0 0}
        .footer-grid{display:grid;grid-template-columns:1.35fr 1fr 1fr 1fr;gap:35px;padding-bottom:48px}
        .footer-intro{color:#a9bbb1;font-size:13px;max-width:260px;margin-top:18px}
        .footer h3{font-size:14px;margin:3px 0 15px;color:var(--lime)}
        .footer-links{list-style:none;margin:0;padding:0}
        .footer-links li{margin:8px 0}
        .footer-links a{color:#b8c8bf;font-size:13px}
        .footer-links a:hover{color:var(--lime)}
        .footer-bottom{border-top:1px solid rgba(255,255,255,.13);padding:18px 0;display:flex;justify-content:space-between;gap:20px;color:#8ea59a;font-size:12px}
        @media(max-width:1024px){
            .nav{gap:0}.nav a{padding:9px 8px;font-size:13px}.nav-action{padding:10px 12px}
            .hero-grid{gap:42px}.feature-strip-grid{grid-template-columns:repeat(2,1fr)}
            .strip-item:nth-child(2){border-right:0}.content-layout,.update-layout{grid-template-columns:1fr}
            .faq-grid{gap:30px}
        }
        @media(max-width:768px){
            .container{width:min(var(--container),calc(100% - 32px))}
            .nav-wrap{height:68px}.menu-toggle{display:block}
            .nav{display:none;position:absolute;top:68px;left:16px;right:16px;padding:10px;background:var(--white);border:1px solid var(--line);border-radius:14px;box-shadow:var(--shadow);flex-direction:column;align-items:stretch}
            .nav.open{display:flex}.nav a{padding:12px 14px}
            .nav-action{display:none}.hero{padding:58px 0}.hero-grid{grid-template-columns:1fr;gap:36px}
            .hero h1{font-size:clamp(36px,11vw,52px)}.hero-copy{font-size:16px}
            .section{padding:65px 0}.section-head{display:block}.section-head p{margin-top:13px}
            .featured-card{min-height:330px;padding:26px}.featured-card h3{font-size:24px}
            .filter-bar{display:block}.search-box{margin-top:14px;min-width:0}
            .news-item{grid-template-columns:75px 1fr;padding:18px}.news-arrow{display:none}
            .cta-inner{display:block}.cta-actions{margin-top:24px}
            .footer-grid{grid-template-columns:1fr 1fr;gap:28px}.footer-grid>div:first-child{grid-column:1/-1}
            .footer-bottom{display:block}.footer-bottom span{display:block;margin:5px 0}
        }
        @media(max-width:520px){
            .hero-actions,.cta-actions{display:grid;grid-template-columns:1fr}.btn{width:100%}
            .feature-strip-grid{grid-template-columns:1fr}.strip-item{border-right:0;border-bottom:1px solid rgba(255,255,255,.16);padding:0 0 14px}.strip-item:last-child{border-bottom:0;padding-bottom:0}
            .featured-card:after{font-size:100px}.update-layout{gap:15px}.timeline-item{grid-template-columns:1fr;gap:5px}
            .faq-grid{grid-template-columns:1fr}.footer-grid{grid-template-columns:1fr}
            .footer-grid>div:first-child{grid-column:auto}
        }

/* roulang page: category5 */
:root{
            --pine:#123c32;
            --pine-deep:#0b2822;
            --pine-soft:#1c5b48;
            --lime:#c8f36a;
            --lime-dark:#a9d94e;
            --amber:#e39a48;
            --paper:#f5f3ed;
            --paper-2:#ebe9e0;
            --white:#fffefa;
            --ink:#17231f;
            --muted:#69756f;
            --line:#d9ddd3;
            --radius:18px;
            --radius-sm:11px;
            --shadow:0 16px 40px rgba(18,60,50,.10);
            --shadow-soft:0 7px 22px rgba(18,60,50,.07);
            --container:1200px;
        }
        *{box-sizing:border-box}
        html{scroll-behavior:smooth}
        body{margin:0;font-family:"Noto Sans SC","Microsoft YaHei","PingFang SC",Arial,sans-serif;color:var(--ink);background:var(--paper);line-height:1.7;font-size:15px}
        a{color:inherit;text-decoration:none}
        img{display:block;max-width:100%}
        button,input{font:inherit}
        button{cursor:pointer}
        .container{width:min(var(--container),calc(100% - 48px));margin:0 auto}
        .header{position:sticky;top:0;z-index:20;background:rgba(245,243,237,.95);backdrop-filter:blur(14px);border-bottom:1px solid rgba(217,221,211,.85)}
        .nav-wrap{height:76px;display:flex;align-items:center;justify-content:space-between;gap:25px}
        .brand{display:flex;align-items:center;gap:11px;white-space:nowrap}
        .brand-mark{width:38px;height:38px;border-radius:12px;background:var(--pine);display:grid;place-items:center;color:var(--lime);font-weight:900;font-size:18px;position:relative;overflow:hidden}
        .brand-mark:after{content:"";width:18px;height:4px;background:var(--amber);position:absolute;bottom:7px;left:10px;border-radius:5px}
        .brand-name{font-size:17px;font-weight:900;letter-spacing:-.03em}
        .brand-name small{display:block;color:var(--muted);font-size:10px;font-weight:600;letter-spacing:.08em;line-height:1}
        .nav{display:flex;align-items:center;gap:5px}
        .nav a{padding:10px 13px;border-radius:9px;color:#53615b;font-size:14px;font-weight:700;transition:.2s ease}
        .nav a:hover,.nav a.active{background:var(--paper-2);color:var(--pine)}
        .nav-action,.btn{display:inline-flex;align-items:center;justify-content:center;gap:9px;border:0;border-radius:10px;font-weight:800;transition:transform .2s,background .2s,box-shadow .2s}
        .nav-action{padding:11px 17px;background:var(--pine);color:var(--lime);font-size:14px}
        .nav-action:hover,.btn-primary:hover{transform:translateY(-2px);background:var(--pine-soft);box-shadow:0 8px 18px rgba(18,60,50,.18)}
        .menu-toggle{display:none;border:1px solid var(--line);background:var(--white);color:var(--pine);border-radius:9px;padding:8px 11px}
        .hero{padding:72px 0 64px;background:var(--paper-2);border-bottom:1px solid var(--line)}
        .hero-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:70px;align-items:center}
        .eyebrow{display:inline-flex;align-items:center;gap:8px;color:var(--pine-soft);font-size:13px;font-weight:800;letter-spacing:.04em}
        .eyebrow:before{content:"";width:8px;height:8px;border-radius:50%;background:var(--amber)}
        .hero h1{font-size:clamp(38px,5vw,64px);line-height:1.12;letter-spacing:-.06em;margin:17px 0 20px;max-width:680px}
        .hero h1 em{color:var(--pine-soft);font-style:normal}
        .hero-copy{font-size:18px;color:var(--muted);max-width:650px;margin:0}
        .hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:29px}
        .btn{padding:13px 20px}
        .btn-primary{background:var(--pine);color:var(--lime)}
        .btn-secondary{border:1px solid var(--pine);color:var(--pine);background:transparent}
        .btn-secondary:hover{background:var(--pine);color:var(--lime)}
        .btn-light{background:var(--lime);color:var(--pine)}
        .btn-light:hover{background:#d6fa82;transform:translateY(-2px)}
        .hero-panel{background:var(--pine);color:var(--white);border-radius:24px;padding:25px;box-shadow:var(--shadow);position:relative;overflow:hidden}
        .hero-panel:before{content:"";position:absolute;width:190px;height:190px;border:1px solid rgba(200,243,106,.25);border-radius:50%;right:-65px;top:-75px}
        .panel-top{display:flex;justify-content:space-between;align-items:center;border-bottom:1px solid rgba(255,255,255,.16);padding-bottom:20px;margin-bottom:20px}
        .panel-title{font-size:17px;font-weight:800}
        .status{display:inline-flex;align-items:center;gap:7px;color:var(--lime);font-size:12px}
        .status:before{content:"";width:7px;height:7px;border-radius:50%;background:var(--lime)}
        .question-map{display:grid;grid-template-columns:1fr 1fr;gap:10px}
        .question-map div{padding:17px 15px;background:rgba(255,255,255,.09);border:1px solid rgba(255,255,255,.12);border-radius:12px}
        .question-map b{display:block;color:var(--lime);font-size:22px;margin-bottom:3px}
        .question-map span{font-size:13px;color:#c4d4ca}
        .section{padding:86px 0}
        .section-head{display:flex;justify-content:space-between;align-items:end;gap:30px;margin-bottom:32px}
        .section-head h2{font-size:clamp(28px,3.2vw,43px);line-height:1.2;letter-spacing:-.04em;margin:10px 0 0}
        .section-head p{max-width:510px;color:var(--muted);margin:0}
        .content-layout{display:grid;grid-template-columns:280px 1fr;gap:55px;align-items:start}
        .topic-nav{position:sticky;top:102px;background:var(--white);border:1px solid var(--line);border-radius:var(--radius);padding:14px}
        .topic-nav a{display:flex;justify-content:space-between;align-items:center;padding:13px 14px;border-radius:10px;color:var(--muted);font-weight:700;transition:.2s}
        .topic-nav a:hover,.topic-nav a.active{background:var(--pine);color:var(--lime)}
        .topic-nav span{font-size:12px;opacity:.7}
        .faq-list{display:grid;gap:12px}
        .faq-item{background:var(--white);border:1px solid var(--line);border-radius:var(--radius-sm);padding:0 22px;transition:.2s}
        .faq-item:hover{border-color:#b8c8b7;box-shadow:var(--shadow-soft)}
        .faq-item summary{list-style:none;cursor:pointer;font-size:17px;font-weight:800;padding:21px 30px 21px 0;position:relative}
        .faq-item summary::-webkit-details-marker{display:none}
        .faq-item summary:after{content:"+";position:absolute;right:0;top:17px;color:var(--pine-soft);font-size:25px;font-weight:400}
        .faq-item[open] summary{color:var(--pine-soft);border-bottom:1px solid var(--line)}
        .faq-item[open] summary:after{content:"−"}
        .faq-answer{padding:16px 0 21px;color:var(--muted)}
        .faq-answer p{margin:0 0 10px}
        .faq-answer ol,.faq-answer ul{margin:8px 0 0;padding-left:22px}
        .search-box{background:var(--white);border:1px solid var(--line);border-radius:var(--radius);padding:23px;margin-bottom:27px}
        .search-box label{display:block;font-size:16px;font-weight:800;margin-bottom:12px}
        .search-row{display:flex;gap:10px}
        .search-row input{flex:1;min-width:0;border:1px solid var(--line);background:var(--paper);border-radius:10px;padding:12px 14px;color:var(--ink);outline:none}
        .search-row input:focus{border-color:var(--pine-soft);box-shadow:0 0 0 3px rgba(28,91,72,.12)}
        .search-row button{padding:0 18px;border:0;border-radius:10px;background:var(--pine);color:var(--lime);font-weight:800}
        .search-note{font-size:12px;color:var(--muted);margin:10px 0 0}
        .info-strip{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin-top:30px}
        .info-card{background:var(--paper-2);border-radius:var(--radius-sm);padding:20px;border:1px solid var(--line)}
        .info-card b{display:block;color:var(--pine);font-size:17px;margin-bottom:4px}
        .info-card span{color:var(--muted);font-size:13px}
        .notice{display:flex;gap:14px;align-items:flex-start;background:#fff3df;border:1px solid #efd4a6;border-radius:var(--radius-sm);padding:18px 20px;color:#76552f;margin-top:30px}
        .notice strong{color:#8a5c25;white-space:nowrap}
        .cta{padding:70px 0}
        .cta-box{background:var(--pine);border-radius:24px;padding:42px 48px;color:var(--white);display:flex;align-items:center;justify-content:space-between;gap:30px;overflow:hidden;position:relative}
        .cta-box:after{content:"";position:absolute;width:260px;height:260px;border:1px solid rgba(200,243,106,.18);border-radius:50%;right:60px;top:-160px}
        .cta-box h2{font-size:clamp(27px,3.5vw,42px);line-height:1.2;margin:0 0 10px;position:relative;z-index:1}
        .cta-box p{color:#bfd0c5;margin:0;max-width:610px;position:relative;z-index:1}
        .cta-actions{display:flex;gap:10px;flex-wrap:wrap;position:relative;z-index:1;white-space:nowrap}
        .footer{background:var(--pine-deep);color:var(--white);padding:56px 0 22px}
        .footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:35px}
        .footer .brand-name{color:var(--white)}
        .footer .brand-name small{color:#9caf9f}
        .footer-intro{color:#aebfb4;max-width:260px;font-size:13px;margin:17px 0 0}
        .footer h3{font-size:14px;margin:0 0 15px;color:var(--lime)}
        .footer-links{list-style:none;padding:0;margin:0}
        .footer-links li{margin:8px 0}
        .footer-links a{color:#b5c5ba;font-size:13px;transition:.2s}
        .footer-links a{color:#b5c5ba;font-size:13px;transition:.2s}
        .footer-links a:hover{color:var(--lime)}
        .footer-bottom{display:flex;justify-content:space-between;gap:20px;border-top:1px solid rgba(255,255,255,.14);margin-top:40px;padding-top:20px;color:#8fa59a;font-size:12px}
        :focus-visible{outline:3px solid rgba(200,243,106,.8);outline-offset:3px}
        @media (max-width:1024px){
            .hero-grid{gap:40px}
            .content-layout{grid-template-columns:230px 1fr;gap:32px}
            .nav a{padding-left:8px;padding-right:8px}
            .nav-action{padding-left:12px;padding-right:12px}
        }
        @media (max-width:768px){
            .container{width:min(var(--container),calc(100% - 34px))}
            .nav-wrap{height:70px}
            .menu-toggle{display:block}
            .nav{display:none;position:absolute;left:17px;right:17px;top:78px;padding:10px;background:var(--white);border:1px solid var(--line);border-radius:14px;box-shadow:var(--shadow);flex-direction:column;align-items:stretch}
            .nav.open{display:flex}
            .nav a{padding:12px 14px}
            .nav-action{display:none}
            .hero{padding:55px 0 48px}
            .hero-grid,.content-layout{grid-template-columns:1fr}
            .hero-panel{max-width:600px}
            .topic-nav{position:static;display:flex;gap:7px;overflow-x:auto;padding:8px}
            .topic-nav a{white-space:nowrap;padding:10px 12px}
            .topic-nav span{display:none}
            .section{padding:62px 0}
            .info-strip{grid-template-columns:1fr}
            .cta-box{padding:34px 25px;display:block}
            .cta-actions{margin-top:23px;white-space:normal}
            .footer-grid{grid-template-columns:1fr 1fr}
        }
        @media (max-width:520px){
            body{font-size:14px}
            .hero h1{font-size:38px}
            .hero-copy{font-size:16px}
            .hero-actions,.hero-actions .btn{width:100%}
            .hero-actions .btn{padding:13px 15px}
            .question-map{grid-template-columns:1fr 1fr}
            .question-map div{padding:14px 12px}
            .search-row{display:block}
            .search-row input,.search-row button{width:100%;height:46px}
            .search-row button{margin-top:9px}
            .faq-item{padding:0 17px}
            .faq-item summary{font-size:15px;padding-right:25px}
            .notice{display:block}
            .notice strong{display:block;margin-bottom:5px}
            .footer-grid{grid-template-columns:1fr}
            .footer-bottom{display:block}
            .footer-bottom span{display:block;margin-top:7px}
        }

/* 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}