/* roulang page: index */
:root{
            --ink:#171916;
            --ink-soft:#242923;
            --paper:#f3f0e8;
            --paper-deep:#e7e1d5;
            --lime:#c9f04a;
            --lime-dark:#9fca24;
            --coral:#ef765d;
            --plum:#8c4d72;
            --white:#fffdf8;
            --muted:#72786c;
            --line:rgba(23,25,22,.13);
            --line-dark:rgba(255,255,255,.14);
            --radius:18px;
            --radius-sm:10px;
            --shadow:0 18px 50px rgba(23,25,22,.12);
            --container:1180px;
        }
        *,*:before,*:after{box-sizing:border-box}
        html{scroll-behavior:smooth}
        body{
            margin:0;
            color:var(--ink);
            background:var(--paper);
            font-family:"Noto Sans SC","PingFang SC","Microsoft YaHei",Arial,sans-serif;
            font-size:16px;
            line-height:1.75;
            -webkit-font-smoothing:antialiased;
        }
        a{color:inherit;text-decoration:none}
        img{max-width:100%;display:block}
        button,input{font:inherit}
        button{cursor:pointer}
        :focus-visible{outline:3px solid var(--coral);outline-offset:4px}
        .container{width:min(var(--container),calc(100% - 48px));margin:0 auto}
        .site-header{
            position:sticky;top:0;z-index:20;
            background:rgba(243,240,232,.94);
            border-bottom:1px solid var(--line);
            backdrop-filter:blur(14px);
        }
        .nav-wrap{height:78px;display:flex;align-items:center;gap:28px}
        .brand{display:flex;align-items:center;gap:12px;min-width:245px;font-weight:900;letter-spacing:-.04em}
        .brand-mark{
            width:38px;height:38px;border-radius:11px;background:var(--ink);
            color:var(--lime);display:grid;place-items:center;font-size:19px;
            box-shadow:4px 4px 0 var(--coral);
        }
        .brand-text{font-size:16px;line-height:1.25}
        .brand-text small{display:block;color:var(--muted);font-size:10px;letter-spacing:.12em;font-weight:700;margin-top:3px}
        .main-nav{display:flex;align-items:center;gap:8px;margin-left:auto}
        .main-nav a{
            padding:9px 13px;border-radius:8px;font-size:14px;font-weight:700;
            color:#51584b;transition:.2s ease;
        }
        .main-nav a:hover,.main-nav a.active{color:var(--ink);background:var(--paper-deep)}
        .main-nav a.active{box-shadow:inset 0 -3px 0 var(--lime-dark)}
        .nav-action,.button{
            display:inline-flex;align-items:center;justify-content:center;gap:8px;
            min-height:45px;padding:0 20px;border:0;border-radius:10px;
            background:var(--lime);color:var(--ink);font-weight:900;
            transition:transform .2s ease,box-shadow .2s ease,background .2s ease;
        }
        .nav-action{min-height:40px;padding:0 16px;font-size:14px}
        .button:hover,.nav-action:hover{transform:translateY(-3px);background:#d8fb68;box-shadow:0 9px 20px rgba(159,202,36,.28)}
        .button.dark{background:var(--ink);color:var(--lime)}
        .button.dark:hover{background:#30382b}
        .menu-toggle{display:none;border:0;background:transparent;padding:9px;font-size:24px}
        .notice-bar{background:var(--ink);color:#dfe8d2;font-size:12px}
        .notice-inner{height:34px;display:flex;align-items:center;justify-content:space-between}
        .notice-inner span:first-child{color:var(--lime);font-weight:800}
        .hero{padding:74px 0 82px;background:var(--paper);overflow:hidden}
        .hero-grid{display:grid;grid-template-columns:1.02fr .98fr;align-items:center;gap:72px}
        .eyebrow,.section-kicker{
            display:inline-flex;align-items:center;gap:9px;color:var(--plum);
            font-size:12px;font-weight:900;letter-spacing:.13em;text-transform:uppercase;
        }
        .eyebrow:before,.section-kicker:before{content:"";width:28px;height:3px;background:var(--coral);border-radius:4px}
        h1,h2,h3,p{margin-top:0}
        h1{font-size:clamp(39px,5.1vw,70px);line-height:1.1;letter-spacing:-.075em;margin:18px 0 22px;max-width:690px}
        .hero-copy{max-width:610px;color:#5d6559;font-size:18px;line-height:1.9}
        .hero-actions{display:flex;gap:12px;flex-wrap:wrap;margin:30px 0 23px}
        .hero-note{display:flex;gap:20px;flex-wrap:wrap;color:var(--muted);font-size:12px}
        .hero-note b{color:var(--ink);margin-right:4px}
        .screen-stage{position:relative;min-height:390px;display:grid;place-items:center}
        .screen-shadow{position:absolute;width:80%;height:38px;bottom:18px;background:rgba(23,25,22,.2);filter:blur(18px);border-radius:50%}
        .sim-window{
            position:relative;width:min(100%,490px);padding:15px;border-radius:22px;
            background:#252b24;box-shadow:var(--shadow);transform:rotate(2deg);
        }
        .window-top{display:flex;align-items:center;gap:7px;padding:2px 5px 14px;color:#9ba794;font-size:11px}
        .window-top i{width:8px;height:8px;border-radius:50%;background:var(--coral)}
        .window-top i:nth-child(2){background:var(--lime)}
        .window-top i:nth-child(3){background:#d9b34e}
        .window-top span{margin-left:auto;letter-spacing:.1em}
        .sim-board{
            min-height:275px;border-radius:14px;padding:22px;
            background:linear-gradient(145deg,#424a35,#20261e);
            position:relative;overflow:hidden;color:#f2f6e8;
        }
        .sim-board:before{content:"";position:absolute;inset:0;background-image:linear-gradient(rgba(201,240,74,.06) 1px,transparent 1px),linear-gradient(90deg,rgba(201,240,74,.06) 1px,transparent 1px);background-size:25px 25px}
        .sim-content{position:relative;z-index:1}
        .sim-label{color:var(--lime);font-size:11px;font-weight:800;letter-spacing:.15em}
        .sim-title{font-size:28px;font-weight:900;margin:14px 0 24px;letter-spacing:-.05em}
        .reel-row{display:grid;grid-template-columns:repeat(3,1fr);gap:10px}
        .reel{height:88px;background:#e8ebd4;color:var(--ink);border-radius:10px;display:grid;place-items:center;font-size:30px;font-weight:900;border-bottom:5px solid var(--lime-dark)}
        .sim-bottom{display:flex;align-items:center;justify-content:space-between;margin-top:22px;font-size:12px;color:#cad3bd}
        .status-dot{display:inline-block;width:7px;height:7px;border-radius:50%;background:var(--lime);margin-right:6px}
        .floating-tag{position:absolute;padding:12px 15px;border-radius:12px;background:var(--white);font-size:12px;font-weight:900;box-shadow:0 12px 28px rgba(23,25,22,.14)}
        .tag-one{right:0;top:35px;color:var(--plum);transform:rotate(-5deg)}
        .tag-two{left:0;bottom:42px;background:var(--lime);transform:rotate(4deg)}
        .section{padding:92px 0}
        .section.alt{background:var(--paper-deep)}
        .section-head{display:flex;align-items:end;justify-content:space-between;gap:30px;margin-bottom:36px}
        h2{font-size:clamp(29px,3.5vw,46px);line-height:1.2;letter-spacing:-.06em;margin:10px 0 0}
        h3{font-size:20px;line-height:1.35;letter-spacing:-.03em;margin-bottom:10px}
        .section-intro{max-width:520px;color:var(--muted);margin:0}
        .feature-strip{display:grid;grid-template-columns:repeat(4,1fr);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
        .feature{padding:28px 24px 28px 0;border-right:1px solid var(--line);margin-right:24px}
        .feature:last-child{border-right:0;margin-right:0}
        .feature-num{font-size:12px;font-weight:900;color:var(--coral);letter-spacing:.1em}
        .feature h3{margin:14px 0 7px;font-size:18px}
        .feature p{color:var(--muted);font-size:14px;margin:0}
        .intro-grid{display:grid;grid-template-columns:.85fr 1.15fr;gap:70px;align-items:center}
        .check-list{padding:0;margin:26px 0 0;list-style:none}
        .check-list li{display:flex;gap:12px;padding:12px 0;border-bottom:1px solid var(--line);color:#50584c}
        .check-list li:before{content:"✓";color:var(--plum);font-weight:900}
        .panel{
            background:var(--ink);color:var(--white);border-radius:var(--radius);padding:30px;
            position:relative;overflow:hidden;box-shadow:var(--shadow)
        }
        .panel-head{display:flex;justify-content:space-between;align-items:center;color:#b9c6ad;font-size:12px}
        .panel-head strong{color:var(--lime);letter-spacing:.12em}
        .control-layout{display:grid;grid-template-columns:1fr 112px;gap:22px;margin-top:25px}
        .control-display{min-height:215px;border:1px solid var(--line-dark);border-radius:12px;padding:20px;background:#20251f}
        .control-display .line{height:9px;background:#465142;border-radius:5px;margin:17px 0}
        .control-display .line.short{width:62%;background:var(--lime)}
        .control-side{display:flex;flex-direction:column;gap:10px}
        .control-side span{padding:14px 10px;border:1px solid var(--line-dark);border-radius:9px;color:#c8d0bf;font-size:12px;text-align:center}
        .control-side span:first-child{background:var(--coral);border-color:var(--coral);color:var(--ink);font-weight:900}
        .game-rail{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
        .game-card{background:var(--white);border:1px solid var(--line);border-radius:var(--radius);padding:22px;transition:.2s ease}
        .game-card:hover{transform:translateY(-5px);box-shadow:var(--shadow);border-color:var(--lime-dark)}
        .game-icon{height:100px;border-radius:12px;background:linear-gradient(135deg,#343c2d,#788641);display:grid;place-items:center;color:var(--lime);font-size:34px;font-weight:900;margin-bottom:18px}
        .tag{display:inline-flex;padding:4px 9px;border-radius:5px;background:#ece8dc;color:var(--plum);font-size:11px;font-weight:900}
        .game-card p{color:var(--muted);font-size:14px;margin:12px 0 16px}
        .card-meta{display:flex;justify-content:space-between;align-items:center;color:var(--muted);font-size:11px}
        .text-link{font-weight:900;color:var(--plum);font-size:13px}
        .download-section{background:var(--ink);color:var(--white)}
        .download-grid{display:grid;grid-template-columns:1fr .85fr;gap:90px;align-items:center}
        .download-section .section-kicker{color:var(--lime)}
        .download-section h2{color:var(--white)}
        .download-section .section-intro{color:#b7c1ad}
        .device-area{display:flex;justify-content:center;position:relative}
        .phone{width:210px;height:370px;border:8px solid #4a5146;border-radius:30px;background:#e5e9d1;padding:10px;box-shadow:22px 22px 0 rgba(201,240,74,.18);transform:rotate(-6deg)}
        .phone-notch{width:70px;height:13px;background:#4a5146;border-radius:0 0 12px 12px;margin:-10px auto 20px}
        .phone-screen{height:300px;border-radius:18px;background:#283025;padding:18px;color:var(--white)}
        .phone-screen strong{display:block;color:var(--lime);font-size:11px}
        .phone-screen h3{font-size:22px;margin:30px 0}
        .phone-screen .mini-line{height:8px;background:#526044;border-radius:5px;margin:13px 0}
        .phone-screen .mini-line.lime{width:72%;background:var(--lime)}
        .download-info{border-top:1px solid var(--line-dark);margin-top:28px;padding-top:21px;display:flex;gap:25px;flex-wrap:wrap;color:#b7c1ad;font-size:13px}
        .download-info b{display:block;color:var(--white);font-size:15px}
        .news-layout{display:grid;grid-template-columns:1fr 1.5fr;gap:75px}
        .news-list{border-top:1px solid var(--line)}
        .news-item{display:grid;grid-template-columns:105px 1fr auto;gap:20px;align-items:center;padding:22px 0;border-bottom:1px solid var(--line);transition:.2s}
        .news-item:hover{padding-left:8px;background:rgba(255,253,248,.45)}
        .news-date{color:var(--plum);font-size:12px;font-weight:900}
        .news-content h3{font-size:17px;margin:0 0 5px}
        .news-content p{font-size:13px;color:var(--muted);margin:0;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
        .faq-wrap{max-width:900px;margin:0 auto}
        .faq-item{border-top:1px solid var(--line)}
        .faq-item:last-child{border-bottom:1px solid var(--line)}
        .faq-item summary{cursor:pointer;list-style:none;padding:20px 4px;font-size:17px;font-weight:800;display:flex;justify-content:space-between}
        .faq-item summary::-webkit-details-marker{display:none}
        .faq-item summary:after{content:"+";font-size:25px;color:var(--plum);font-weight:400}
        .faq-item[open] summary:after{content:"−"}
        .faq-answer{padding:0 45px 22px 4px;color:var(--muted);font-size:14px}
        .cta{padding:65px 0;background:var(--lime)}
        .cta-inner{display:flex;align-items:center;justify-content:space-between;gap:30px}
        .cta h2{margin:0;font-size:36px}
        .cta p{margin:8px 0 0;color:#4f5b34}
        .site-footer{background:#10130f;color:#c4ccb9;padding:58px 0 24px}
        .footer-grid{display:grid;grid-template-columns:1.4fr .8fr .8fr 1fr;gap:45px;padding-bottom:45px}
        .footer-brand{color:var(--white);font-size:18px;font-weight:900}
        .footer-copy{font-size:13px;color:#899486;max-width:280px;margin-top:16px}
        .footer-title{color:var(--lime);font-size:12px;letter-spacing:.12em;font-weight:900;margin-bottom:16px}
        .footer-links{display:flex;flex-direction:column;gap:9px;font-size:13px}
        .footer-links a:hover{color:var(--lime)}
        .footer-bottom{border-top:1px solid var(--line-dark);padding-top:20px;display:flex;justify-content:space-between;gap:15px;flex-wrap:wrap;color:#7e8979;font-size:11px}
        @media(max-width:1024px){
            .brand{min-width:210px}.main-nav{gap:0}.main-nav a{padding:8px 9px}
            .hero-grid{gap:35px}.download-grid{gap:45px}.news-layout{gap:40px}
        }
        @media(max-width:768px){
            .container{width:min(var(--container),calc(100% - 32px))}
            .nav-wrap{height:68px;gap:10px}.brand{min-width:0;flex:1}.brand-text{font-size:14px}.brand-mark{width:34px;height:34px}
            .main-nav{display:none;position:absolute;top:68px;left:0;right:0;padding:12px 16px;background:var(--paper);border-bottom:1px solid var(--line);flex-direction:column;align-items:stretch}
            .main-nav.open{display:flex}.main-nav a{padding:12px}.nav-action{display:none}.menu-toggle{display:block}
            .notice-inner{height:auto;min-height:34px;padding:6px 0}.notice-inner span:last-child{display:none}
            .hero{padding:55px 0 62px}.hero-grid,.intro-grid,.download-grid,.news-layout{grid-template-columns:1fr}
            .hero-copy{font-size:16px}.screen-stage{min-height:335px;margin-top:20px}.sim-window{width:95%}
            .section{padding:65px 0}.section-head{display:block;margin-bottom:26px}.section-intro{margin-top:15px}
            .feature-strip{grid-template-columns:repeat(2,1fr);gap:0}.feature{margin:0;padding:22px 16px 22px 0;border-bottom:1px solid var(--line)}.feature:nth-child(2){border-right:0;margin:0;padding-left:16px}.feature:nth-child(3){padding-left:0}.feature:nth-child(4){border-right:0;margin:0;padding-left:16px}
            .game-rail{grid-template-columns:1fr}
            .download-grid{gap:35px}.device-area{order:-1}.phone{width:190px;height:335px}.phone-screen{height:270px}
            .news-item{grid-template-columns:75px 1fr}.news-item .text-link{grid-column:2}
            .footer-grid{grid-template-columns:1fr 1fr;gap:30px}.cta-inner{display:block}.cta .button{margin-top:20px}
        }
        @media(max-width:520px){
            h1{font-size:38px}.hero-actions{display:grid;grid-template-columns:1fr}.button{width:100%}
            .floating-tag{font-size:10px;padding:9px}.tag-one{right:-4px}.tag-two{left:-4px}
            .control-layout{grid-template-columns:1fr}.control-side{flex-direction:row}.control-side span{flex:1}
            .footer-grid{grid-template-columns:1fr}.footer-bottom{display:block}.footer-bottom span{display:block;margin-bottom:7px}
        }

/* roulang page: article */
:root{
            --ink:#171916;
            --ink-soft:#242923;
            --paper:#f3f0e8;
            --paper-deep:#e7e1d5;
            --lime:#c9f04a;
            --lime-dark:#9fca24;
            --coral:#ef765d;
            --plum:#8c4d72;
            --white:#fffdf8;
            --muted:#72786c;
            --line:rgba(23,25,22,.13);
            --line-dark:rgba(255,255,255,.14);
            --radius:18px;
            --radius-sm:10px;
            --shadow:0 18px 50px rgba(23,25,22,.12);
            --container:1180px;
        }
        *{box-sizing:border-box}
        html{scroll-behavior:smooth}
        body{
            margin:0;color:var(--ink);background:var(--paper);
            font-family:"Noto Sans SC","PingFang SC","Microsoft YaHei",Arial,sans-serif;
            font-size:16px;line-height:1.75;-webkit-font-smoothing:antialiased;
        }
        a{color:inherit;text-decoration:none}
        a:focus-visible,button:focus-visible{outline:3px solid var(--coral);outline-offset:3px}
        img{display:block;max-width:100%;height:auto}
        button,input{font:inherit}
        button{cursor:pointer}
        .container{width:min(var(--container),calc(100% - 48px));margin:0 auto}
        .site-header{
            position:sticky;top:0;z-index:20;background:rgba(243,240,232,.95);
            border-bottom:1px solid var(--line);backdrop-filter:blur(14px)
        }
        .nav-wrap{height:78px;display:flex;align-items:center;gap:28px}
        .brand{display:flex;align-items:center;gap:12px;min-width:245px;font-weight:900;letter-spacing:-.04em}
        .brand-mark{
            width:38px;height:38px;border-radius:11px;background:var(--ink);color:var(--lime);
            display:grid;place-items:center;font-size:19px;box-shadow:4px 4px 0 var(--coral)
        }
        .brand-text{font-size:16px;line-height:1.25}
        .brand-text small{display:block;color:var(--muted);font-size:10px;letter-spacing:.12em;font-weight:700;margin-top:3px}
        .main-nav{display:flex;align-items:center;gap:8px;margin-left:auto}
        .main-nav a{
            padding:9px 13px;border-radius:8px;font-size:14px;font-weight:700;color:#51584b;
            transition:.2s ease
        }
        .main-nav a:hover,.main-nav a.active{color:var(--ink);background:var(--paper-deep)}
        .main-nav a.active{box-shadow:inset 0 -3px 0 var(--lime-dark)}
        .nav-action,.button{
            display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:45px;
            padding:0 20px;border:0;border-radius:10px;background:var(--lime);color:var(--ink);
            font-weight:900;transition:transform .2s ease,box-shadow .2s ease,background .2s ease
        }
        .nav-action{min-height:40px;padding:0 16px;font-size:14px}
        .button:hover,.nav-action:hover{transform:translateY(-3px);background:#d8fb68;box-shadow:0 9px 20px rgba(159,202,36,.28)}
        .button.dark{background:var(--ink);color:var(--lime)}
        .button.dark:hover{background:#30382b}
        .menu-toggle{display:none;border:0;background:transparent;padding:9px;font-size:24px}
        .notice-bar{background:var(--ink);color:#d7dfcc;font-size:12px}
        .notice-inner{min-height:34px;display:flex;align-items:center;justify-content:space-between;gap:20px}
        .notice-inner strong{color:var(--lime)}
        .page-head{padding:58px 0 54px;background:var(--paper-deep);border-bottom:1px solid var(--line)}
        .breadcrumb{display:flex;gap:10px;align-items:center;color:var(--muted);font-size:13px;margin-bottom:22px}
        .breadcrumb a:hover{color:var(--plum)}
        .breadcrumb span{color:#aaa99d}
        .article-heading{max-width:850px}
        .eyebrow,.section-kicker{
            display:inline-flex;align-items:center;gap:9px;color:var(--plum);
            font-size:12px;font-weight:900;letter-spacing:.13em
        }
        .eyebrow:before,.section-kicker:before{content:"";width:28px;height:3px;background:var(--coral);border-radius:4px}
        h1,h2,h3{line-height:1.25;letter-spacing:-.045em}
        h1{font-size:clamp(32px,5vw,58px);margin:16px 0 20px;font-weight:950}
        h2{font-size:clamp(26px,3vw,38px);margin:0 0 15px;font-weight:900}
        h3{font-size:20px;margin:0 0 9px;font-weight:900}
        .article-lead{max-width:760px;color:#5e665a;font-size:17px;margin:0 0 25px}
        .article-meta{display:flex;flex-wrap:wrap;gap:10px 25px;color:var(--muted);font-size:13px}
        .article-meta b{color:var(--ink)}
        .tag{display:inline-flex;padding:4px 10px;border-radius:5px;background:#ece8dc;color:var(--plum);font-size:11px;font-weight:900}
        .article-layout{display:grid;grid-template-columns:minmax(0,820px) 270px;gap:70px;align-items:start;padding:76px 0 88px}
        .article-content{
            min-width:0;background:var(--white);border:1px solid var(--line);border-radius:var(--radius);
            padding:clamp(25px,5vw,58px);box-shadow:0 10px 30px rgba(23,25,22,.045)
        }
        .article-content p{margin:0 0 1.35em;color:#424a40;font-size:17px;line-height:2}
        .article-content h2{margin:1.8em 0 .7em;padding-top:.3em}
        .article-content h3{margin:1.5em 0 .6em}
        .article-content ul,.article-content ol{padding-left:1.5em;margin:1em 0 1.5em;color:#424a40}
        .article-content li{padding:4px 0}
        .article-content blockquote{
            margin:28px 0;padding:18px 23px;border-left:4px solid var(--lime-dark);
            background:#f1f4df;color:#4d5745;border-radius:0 var(--radius-sm) var(--radius-sm) 0
        }
        .article-content img{border-radius:var(--radius-sm);margin:26px 0}
        .article-content table{width:100%;border-collapse:collapse;margin:25px 0;font-size:14px}
        .article-content th,.article-content td{padding:11px 13px;border:1px solid var(--line);text-align:left}
        .article-content th{background:var(--paper-deep);font-weight:900}
        .article-content a{color:var(--plum);font-weight:800;text-decoration:underline;text-decoration-color:rgba(140,77,114,.35);text-underline-offset:3px}
        .article-sidebar{position:sticky;top:105px}
        .side-card{padding:23px;background:var(--ink);color:var(--white);border-radius:var(--radius);margin-bottom:16px}
        .side-card h3{color:var(--lime);font-size:18px}
        .side-card p{color:#bbc4b4;font-size:13px;line-height:1.8;margin:0 0 18px}
        .side-links{border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;background:rgba(255,255,255,.32)}
        .side-links a{display:flex;justify-content:space-between;padding:14px 16px;border-bottom:1px solid var(--line);font-size:13px;font-weight:800}
        .side-links a:last-child{border-bottom:0}
        .side-links a:hover{background:var(--paper-deep);color:var(--plum)}
        .empty-state{text-align:center;padding:65px 20px;color:var(--muted)}
        .empty-state strong{display:block;font-size:24px;color:var(--ink);margin-bottom:12px}
        .related{padding:72px 0;background:var(--paper-deep);border-top:1px solid var(--line)}
        .section-head{display:flex;align-items:end;justify-content:space-between;gap:30px;margin-bottom:28px}
        .section-intro{max-width:520px;color:var(--muted);margin:0}
        .related-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
        .related-card{background:var(--white);border:1px solid var(--line);border-radius:var(--radius);padding:23px;transition:.2s ease}
        .related-card:hover{transform:translateY(-5px);box-shadow:var(--shadow);border-color:var(--lime-dark)}
        .related-card h3{font-size:18px;margin:16px 0 9px}
        .related-card p{color:var(--muted);font-size:14px;margin:0 0 17px}
        .card-meta{display:flex;justify-content:space-between;gap:10px;color:var(--muted);font-size:11px}
        .text-link{font-weight:900;color:var(--plum);font-size:13px}
        .cta-section{padding:78px 0;background:var(--lime)}
        .cta-box{display:flex;align-items:center;justify-content:space-between;gap:30px}
        .cta-box h2{max-width:650px;margin:0}
        .cta-box p{max-width:570px;margin:9px 0 0;color:#4b572e}
        .site-footer{padding:58px 0 24px;background:var(--ink);color:var(--white)}
        .footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:35px;padding-bottom:45px}
        .footer-brand{font-size:18px;font-weight:900;color:var(--lime);letter-spacing:-.03em}
        .footer-copy{max-width:320px;color:#aeb8a8;font-size:13px;line-height:1.8;margin:15px 0 0}
        .footer-title{font-size:13px;font-weight:900;color:var(--coral);margin-bottom:13px}
        .footer-links{display:grid;gap:8px}
        .footer-links a{color:#d1d7c9;font-size:13px;transition:.2s}
        .footer-links a:hover{color:var(--lime);padding-left:4px}
        .footer-bottom{display:flex;justify-content:space-between;gap:25px;padding-top:19px;border-top:1px solid var(--line-dark);color:#8f998b;font-size:11px}
        @media (max-width:1024px){
            .nav-wrap{gap:14px}.brand{min-width:210px}.main-nav a{padding:8px 8px;font-size:13px}
            .article-layout{grid-template-columns:minmax(0,1fr) 230px;gap:35px}
        }
        @media (max-width:768px){
            .container{width:min(var(--container),calc(100% - 32px))}
            .nav-wrap{height:68px}.brand{min-width:0;flex:1}.brand-text{font-size:14px}
            .main-nav{
                display:none;position:absolute;top:68px;left:0;right:0;padding:12px 16px;
                background:var(--paper);border-bottom:1px solid var(--line);box-shadow:var(--shadow);
                flex-direction:column;align-items:stretch
            }
            .main-nav.open{display:flex}.main-nav a{text-align:center;padding:12px}
            .nav-action{display:none}.menu-toggle{display:block}
            .notice-inner{min-height:38px;justify-content:center;text-align:center}
            .notice-inner span{display:none}
            .page-head{padding:42px 0 38px}
            .article-layout{display:block;padding:42px 0 58px}.article-sidebar{position:static;margin-top:22px}
            .related{padding:55px 0}.related-grid{grid-template-columns:1fr}
            .section-head{display:block}.section-head .text-link{display:inline-block;margin-top:14px}
            .cta-box{display:block}.cta-box .button{margin-top:22px}
            .footer-grid{grid-template-columns:1fr 1fr;gap:30px}
            .footer-bottom{display:block}.footer-bottom span{display:block;margin-top:8px}
        }
        @media (max-width:520px){
            h1{font-size:34px}.article-content{padding:24px 19px}.article-content p{font-size:16px}
            .breadcrumb{font-size:12px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
            .footer-grid{grid-template-columns:1fr}.footer-copy{max-width:none}
            .article-meta{display:grid;gap:5px}
        }

/* roulang page: category1 */
:root{
            --ink:#171916;
            --ink-soft:#242923;
            --paper:#f3f0e8;
            --paper-deep:#e7e1d5;
            --lime:#c9f04a;
            --lime-dark:#9fca24;
            --coral:#ef765d;
            --plum:#8c4d72;
            --white:#fffdf8;
            --muted:#72786c;
            --line:rgba(23,25,22,.13);
            --line-dark:rgba(255,255,255,.14);
            --radius:18px;
            --radius-sm:10px;
            --shadow:0 18px 50px rgba(23,25,22,.12);
            --container:1180px;
        }
        *,*::before,*::after{box-sizing:border-box}
        html{scroll-behavior:smooth}
        body{margin:0;color:var(--ink);background:var(--paper);font-family:"Noto Sans SC","PingFang SC","Microsoft YaHei",Arial,sans-serif;font-size:16px;line-height:1.75;-webkit-font-smoothing:antialiased}
        a{color:inherit;text-decoration:none}
        a:focus-visible,button:focus-visible{outline:3px solid var(--coral);outline-offset:3px}
        img{max-width:100%;display:block}
        button,input{font:inherit}
        button{cursor:pointer}
        .container{width:min(var(--container),calc(100% - 48px));margin:0 auto}
        .site-header{position:sticky;top:0;z-index:20;background:rgba(243,240,232,.95);border-bottom:1px solid var(--line);backdrop-filter:blur(14px)}
        .nav-wrap{height:78px;display:flex;align-items:center;gap:28px}
        .brand{display:flex;align-items:center;gap:12px;min-width:245px;font-weight:900;letter-spacing:-.04em}
        .brand-mark{width:38px;height:38px;border-radius:11px;background:var(--ink);color:var(--lime);display:grid;place-items:center;font-size:19px;box-shadow:4px 4px 0 var(--coral)}
        .brand-text{font-size:16px;line-height:1.25}
        .brand-text small{display:block;color:var(--muted);font-size:10px;letter-spacing:.12em;font-weight:700;margin-top:3px}
        .main-nav{display:flex;align-items:center;gap:8px;margin-left:auto}
        .main-nav a{padding:9px 13px;border-radius:8px;font-size:14px;font-weight:700;color:#51584b;transition:.2s ease}
        .main-nav a:hover,.main-nav a.active{color:var(--ink);background:var(--paper-deep)}
        .main-nav a.active{box-shadow:inset 0 -3px 0 var(--lime-dark)}
        .nav-action,.button{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:45px;padding:0 20px;border:0;border-radius:10px;background:var(--lime);color:var(--ink);font-weight:900;transition:transform .2s ease,box-shadow .2s ease,background .2s ease}
        .nav-action{min-height:40px;padding:0 16px;font-size:14px}
        .button:hover,.nav-action:hover{transform:translateY(-3px);background:#d8fb68;box-shadow:0 9px 20px rgba(159,202,36,.28)}
        .button.dark{background:var(--ink);color:var(--lime)}
        .button.dark:hover{background:#30382b}
        .menu-toggle{display:none;border:0;background:transparent;padding:9px;font-size:24px}
        .notice-bar{background:var(--ink);color:#dce5d5;font-size:12px;padding:8px 0}
        .notice-inner{display:flex;justify-content:space-between;gap:20px}
        .notice-inner strong{color:var(--lime)}
        .page-hero{padding:72px 0 68px;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(--plum)}
        .breadcrumb span{color:var(--coral)}
        .hero-layout{display:grid;grid-template-columns:1fr .85fr;gap:70px;align-items:center}
        .eyebrow,.section-kicker{display:inline-flex;align-items:center;gap:9px;color:var(--plum);font-size:12px;font-weight:900;letter-spacing:.13em}
        .eyebrow:before,.section-kicker:before{content:"";width:28px;height:3px;background:var(--coral);border-radius:4px}
        h1,h2,h3{font-weight:900;letter-spacing:-.045em;line-height:1.2}
        h1{font-size:clamp(40px,5vw,68px);margin:18px 0 20px;max-width:680px}
        h2{font-size:clamp(28px,3vw,42px);margin:12px 0 16px}
        h3{font-size:20px;margin:0 0 9px}
        .hero-text{max-width:620px;color:#5d6559;font-size:18px;line-height:1.9}
        .hero-actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:29px}
        .hero-note{display:flex;flex-wrap:wrap;gap:18px;color:var(--muted);font-size:12px;margin-top:20px}
        .hero-note b{color:var(--ink);margin-right:4px}
        .control-board{background:var(--ink);color:var(--white);border-radius:24px;padding:18px;box-shadow:var(--shadow);transform:rotate(2deg)}
        .board-top{display:flex;justify-content:space-between;align-items:center;border-bottom:1px solid var(--line-dark);padding:4px 4px 15px;color:#c4d0bd;font-size:12px}
        .status-light{display:inline-block;width:8px;height:8px;background:var(--lime);border-radius:50%;margin-right:6px;box-shadow:0 0 12px var(--lime)}
        .board-main{padding:30px 18px 24px;background:linear-gradient(135deg,#30392c,#20251f);margin-top:16px;border-radius:15px;position:relative;overflow:hidden}
        .board-main:after{content:"";position:absolute;inset:0;background:repeating-linear-gradient(0deg,transparent 0 8px,rgba(201,240,74,.035) 9px 10px);pointer-events:none}
        .board-label{font-size:11px;color:var(--lime);letter-spacing:.12em}
        .board-title{font-size:30px;font-weight:900;margin:8px 0 28px}
        .control-row{display:grid;grid-template-columns:repeat(3,1fr);gap:10px}
        .control-item{padding:13px 10px;border:1px solid var(--line-dark);border-radius:10px;background:rgba(255,255,255,.04);font-size:12px;color:#d6ded0}
        .control-item b{display:block;color:var(--white);font-size:16px;margin-top:4px}
        .board-bottom{display:flex;justify-content:space-between;align-items:center;padding:16px 4px 1px;font-size:12px;color:#aab5a4}
        .signal{color:var(--lime);font-weight:800}
        .section{padding:88px 0}
        .section.alt{background:var(--paper-deep)}
        .section-head{display:flex;align-items:end;justify-content:space-between;gap:30px;margin-bottom:36px}
        .section-intro{max-width:540px;color:var(--muted);margin:0}
        .feature-strip{display:grid;grid-template-columns:repeat(4,1fr);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
        .feature{padding:28px 24px 28px 0;border-right:1px solid var(--line);margin-right:24px}
        .feature:last-child{border-right:0;margin-right:0}
        .feature-num{font-size:12px;font-weight:900;color:var(--coral);letter-spacing:.1em}
        .feature h3{margin:14px 0 7px;font-size:18px}
        .feature p{color:var(--muted);font-size:14px;margin:0}
        .guide-grid{display:grid;grid-template-columns:.8fr 1.2fr;gap:76px;align-items:start}
        .check-list{padding:0;margin:27px 0 0;list-style:none}
        .check-list li{display:flex;gap:12px;padding:13px 0;border-bottom:1px solid var(--line);color:#50584c}
        .check-list li:before{content:"✓";color:var(--plum);font-weight:900}
        .steps{display:grid;grid-template-columns:repeat(2,1fr);gap:15px}
        .step-card{background:var(--white);border:1px solid var(--line);border-radius:var(--radius);padding:24px;transition:.2s ease}
        .step-card:hover{transform:translateY(-4px);box-shadow:var(--shadow);border-color:var(--lime-dark)}
        .step-number{display:grid;place-items:center;width:34px;height:34px;border-radius:9px;background:var(--lime);font-weight:900;margin-bottom:20px}
        .step-card p{color:var(--muted);font-size:14px;margin:0}
        .device-band{display:grid;grid-template-columns:1.15fr .85fr;gap:70px;align-items:center}
        .device-list{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin-top:28px}
        .device{background:var(--white);border:1px solid var(--line);border-radius:12px;padding:18px}
        .device b{display:block;font-size:17px;margin-bottom:5px}
        .device span{font-size:13px;color:var(--muted)}
        .interface-panel{background:var(--white);border:1px solid var(--line);border-radius:var(--radius);padding:20px;box-shadow:0 12px 25px rgba(23,25,22,.08)}
        .panel-head{display:flex;justify-content:space-between;padding-bottom:17px;border-bottom:1px solid var(--line);font-weight:900}
        .panel-grid{display:grid;grid-template-columns:1.2fr .8fr;gap:12px;margin-top:15px}
        .panel-block{min-height:86px;background:var(--paper-deep);border-radius:10px;padding:14px}
        .panel-block.large{min-height:185px;background:var(--ink);color:var(--lime)}
        .panel-block small{display:block;color:var(--muted);font-size:11px;margin-bottom:8px}
        .panel-block.large small{color:#bac7b2}
        .play-entry{display:grid;grid-template-columns:1fr auto;align-items:center;gap:25px;background:var(--ink);color:var(--white);border-radius:var(--radius);padding:29px 32px}
        .play-entry h3{color:var(--white);margin-bottom:6px}
        .play-entry p{color:#b9c4b4;margin:0;font-size:14px}
        .tag{display:inline-flex;padding:4px 9px;border-radius:5px;background:#ece8dc;color:var(--plum);font-size:11px;font-weight:900;margin-bottom:10px}
        .faq-list{max-width:850px;margin:0 auto;border-top:1px solid var(--line)}
        .faq-item{border-bottom:1px solid var(--line)}
        .faq-question{width:100%;display:flex;justify-content:space-between;align-items:center;text-align:left;background:transparent;border:0;padding:21px 0;color:var(--ink);font-weight:900}
        .faq-question span:last-child{font-size:25px;color:var(--plum);transition:.2s}
        .faq-answer{display:none;color:var(--muted);font-size:14px;padding:0 45px 21px 0}
        .faq-item.open .faq-answer{display:block}
        .faq-item.open .faq-question span:last-child{transform:rotate(45deg)}
        .cta{background:var(--coral);padding:58px 0}
        .cta-inner{display:flex;align-items:center;justify-content:space-between;gap:30px}
        .cta h2{margin:0;color:var(--ink);font-size:34px}
        .cta p{margin:8px 0 0;color:#63382f}
        .site-footer{background:var(--ink);color:var(--white);padding:62px 0 25px}
        .footer-grid{display:grid;grid-template-columns:1.7fr 1fr 1fr 1fr;gap:35px;padding-bottom:48px}
        .footer-brand{font-size:20px;font-weight:900;letter-spacing:-.04em}
        .footer-copy{color:#aeb8a8;font-size:13px;max-width:340px;margin-top:15px}
        .footer-title{font-size:13px;color:var(--lime);font-weight:900;margin-bottom:13px}
        .footer-links{display:grid;gap:8px;color:#c0c9bb;font-size:13px}
        .footer-links a{transition:.2s}
        .footer-links a:hover{color:var(--lime);transform:translateX(3px)}
        .footer-bottom{border-top:1px solid var(--line-dark);padding-top:20px;display:flex;justify-content:space-between;gap:20px;color:#899587;font-size:11px}
        @media(max-width:1024px){
            .main-nav{gap:2px}.main-nav a{padding:8px 9px}.brand{min-width:220px}
            .hero-layout,.device-band{gap:42px}.guide-grid{gap:45px}
        }
        @media(max-width:768px){
            .container{width:min(var(--container),calc(100% - 32px))}
            .nav-wrap{height:68px;gap:12px}.brand{min-width:0;flex:1}.brand-text{font-size:14px}.brand-text small{font-size:9px}
            .brand-mark{width:34px;height:34px}.menu-toggle{display:block}
            .main-nav{display:none;position:absolute;left:16px;right:16px;top:68px;background:var(--white);padding:12px;box-shadow:var(--shadow);border:1px solid var(--line);border-radius:0 0 15px 15px;flex-direction:column;align-items:stretch}
            .main-nav.show{display:flex}.main-nav a{text-align:center;padding:11px}
            .nav-action{padding:0 11px;font-size:12px;min-height:38px}
            .notice-inner{display:block}.notice-inner span{display:block}
            .page-hero{padding:44px 0 52px}.hero-layout,.guide-grid,.device-band{grid-template-columns:1fr}
            .hero-text{font-size:16px}.control-board{max-width:540px;margin:0 auto;transform:none}
            .section{padding:64px 0}.section-head{display:block;margin-bottom:27px}.section-head .section-intro{margin-top:14px}
            .feature-strip{grid-template-columns:repeat(2,1fr)}
            .feature:nth-child(2){border-right:0;margin-right:0}.feature:nth-child(n+3){border-top:1px solid var(--line)}
            .steps{grid-template-columns:1fr 1fr}.device-list{grid-template-columns:1fr 1fr}
            .play-entry{grid-template-columns:1fr;padding:25px}.play-entry .button{justify-self:start}
            .cta-inner{display:block}.cta .button{margin-top:22px}
            .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-bottom:8px}
        }
        @media(max-width:520px){
            h1{font-size:39px}.hero-actions .button{width:100%}.hero-note{gap:8px;display:grid}
            .feature-strip,.steps,.device-list{grid-template-columns:1fr}
            .feature{border-right:0!important;margin-right:0!important}
            .feature:not(:first-child){border-top:1px solid var(--line)}
            .panel-grid{grid-template-columns:1fr}.panel-block.large{min-height:130px}
            .footer-grid{grid-template-columns:1fr}.footer-grid>div:first-child{grid-column:auto}
            .breadcrumb{font-size:12px}
        }

/* roulang page: category2 */
:root{
            --ink:#171916;
            --ink-soft:#242923;
            --paper:#f3f0e8;
            --paper-deep:#e7e1d5;
            --lime:#c9f04a;
            --lime-dark:#9fca24;
            --coral:#ef765d;
            --plum:#8c4d72;
            --white:#fffdf8;
            --muted:#72786c;
            --line:rgba(23,25,22,.13);
            --line-dark:rgba(255,255,255,.14);
            --radius:18px;
            --radius-sm:10px;
            --shadow:0 18px 50px rgba(23,25,22,.12);
            --container:1180px;
        }
        *{box-sizing:border-box}
        html{scroll-behavior:smooth}
        body{
            margin:0;color:var(--ink);background:var(--paper);
            font-family:"Noto Sans SC","PingFang SC","Microsoft YaHei",Arial,sans-serif;
            font-size:16px;line-height:1.75;-webkit-font-smoothing:antialiased;
        }
        a{color:inherit;text-decoration:none}
        a:focus-visible,button:focus-visible{outline:3px solid var(--coral);outline-offset:3px}
        img{max-width:100%;display:block}
        button,input{font:inherit}
        button{cursor:pointer}
        h1,h2,h3,h4,p{margin-top:0}
        h1,h2,h3,h4{font-weight:900;letter-spacing:-.045em}
        h1{font-size:clamp(42px,6vw,76px);line-height:1.08}
        h2{font-size:clamp(30px,4vw,48px);line-height:1.18;margin-bottom:16px}
        h3{font-size:21px;line-height:1.35}
        .container{width:min(var(--container),calc(100% - 48px));margin:0 auto}
        .site-header{
            position:sticky;top:0;z-index:20;background:rgba(243,240,232,.94);
            border-bottom:1px solid var(--line);backdrop-filter:blur(14px)
        }
        .nav-wrap{height:78px;display:flex;align-items:center;gap:28px}
        .brand{display:flex;align-items:center;gap:12px;min-width:245px;font-weight:900;letter-spacing:-.04em}
        .brand-mark{
            width:38px;height:38px;border-radius:11px;background:var(--ink);color:var(--lime);
            display:grid;place-items:center;font-size:19px;box-shadow:4px 4px 0 var(--coral)
        }
        .brand-text{font-size:16px;line-height:1.25}
        .brand-text small{display:block;color:var(--muted);font-size:10px;letter-spacing:.12em;font-weight:700;margin-top:3px}
        .main-nav{display:flex;align-items:center;gap:8px;margin-left:auto}
        .main-nav a{
            padding:9px 13px;border-radius:8px;font-size:14px;font-weight:700;color:#51584b;
            transition:.2s ease
        }
        .main-nav a:hover,.main-nav a.active{color:var(--ink);background:var(--paper-deep)}
        .main-nav a.active{box-shadow:inset 0 -3px 0 var(--lime-dark)}
        .nav-action,.button{
            display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:45px;
            padding:0 20px;border:0;border-radius:10px;background:var(--lime);color:var(--ink);
            font-weight:900;transition:transform .2s ease,box-shadow .2s ease,background .2s ease
        }
        .nav-action{min-height:40px;padding:0 16px;font-size:14px}
        .button:hover,.nav-action:hover{transform:translateY(-3px);background:#d8fb68;box-shadow:0 9px 20px rgba(159,202,36,.28)}
        .button.dark{background:var(--ink);color:var(--lime)}
        .button.dark:hover{background:#30382b}
        .menu-toggle{display:none;border:0;background:transparent;padding:9px;font-size:24px}
        .notice-bar{background:var(--ink);color:#dce5d4;font-size:12px}
        .notice-inner{min-height:36px;display:flex;align-items:center;justify-content:space-between;gap:20px}
        .notice-inner strong{color:var(--lime)}
        .hero{
            padding:78px 0 86px;background:var(--paper-deep);
            border-bottom:1px solid var(--line);position:relative;overflow:hidden
        }
        .hero:after{content:"";position:absolute;width:380px;height:380px;border:1px solid rgba(140,77,114,.15);border-radius:50%;right:-130px;top:-150px}
        .breadcrumb{font-size:13px;color:var(--muted);margin-bottom:34px}
        .breadcrumb a{color:var(--plum);font-weight:800}
        .hero-layout{display:grid;grid-template-columns:1.05fr .95fr;gap:70px;align-items:center}
        .eyebrow,.section-kicker{
            display:inline-flex;align-items:center;gap:9px;color:var(--plum);
            font-size:12px;font-weight:900;letter-spacing:.13em;text-transform:uppercase
        }
        .eyebrow:before,.section-kicker:before{content:"";width:28px;height:3px;background:var(--coral);border-radius:4px}
        .hero h1{max-width:690px;margin:17px 0 22px}
        .hero h1 em{font-style:normal;color:var(--plum)}
        .hero-copy{max-width:650px;color:#5d6559;font-size:18px;line-height:1.9}
        .hero-actions{display:flex;gap:12px;flex-wrap:wrap;margin:30px 0 22px}
        .hero-note{display:flex;gap:20px;flex-wrap:wrap;color:var(--muted);font-size:12px}
        .hero-note b{color:var(--ink);margin-right:4px}
        .entry-board{
            background:var(--ink);color:var(--white);border-radius:22px;padding:26px;
            box-shadow:var(--shadow);position:relative;transform:rotate(1.5deg)
        }
        .board-top{display:flex;justify-content:space-between;align-items:center;border-bottom:1px solid var(--line-dark);padding-bottom:18px}
        .lights{display:flex;gap:7px}.lights i{width:9px;height:9px;border-radius:50%;background:var(--coral)}.lights i:nth-child(2){background:var(--lime)}.lights i:nth-child(3){background:#e6c267}
        .board-label{font-size:11px;color:#aeb9a8;letter-spacing:.12em}
        .board-title{font-size:27px;font-weight:900;margin:28px 0 8px}
        .board-sub{color:#aeb9a8;font-size:13px;margin-bottom:25px}
        .board-entry{display:grid;grid-template-columns:1fr auto;gap:12px;padding:15px 0;border-top:1px solid var(--line-dark)}
        .board-entry strong{display:block;font-size:15px}.board-entry span{font-size:11px;color:#aeb9a8}
        .status{align-self:center;padding:4px 9px;border-radius:5px;background:var(--lime);color:var(--ink);font-size:11px;font-weight:900}
        .section{padding:92px 0}.section.alt{background:var(--paper-deep)}
        .section-head{display:flex;align-items:end;justify-content:space-between;gap:30px;margin-bottom:36px}
        .section-intro{max-width:540px;color:var(--muted);margin:0}
        .entry-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:16px}
        .entry-card{
            background:var(--white);border:1px solid var(--line);border-radius:var(--radius);
            padding:25px;display:grid;grid-template-columns:auto 1fr auto;gap:18px;align-items:center;
            transition:.2s ease
        }
        .entry-card:hover{transform:translateY(-5px);box-shadow:var(--shadow);border-color:var(--lime-dark)}
        .entry-icon{width:54px;height:54px;border-radius:14px;background:var(--ink);color:var(--lime);display:grid;place-items:center;font-size:22px;font-weight:900}
        .entry-card h3{margin:7px 0 4px;font-size:19px}.entry-card p{color:var(--muted);font-size:13px;margin:0}
        .tag{display:inline-flex;padding:4px 9px;border-radius:5px;background:#ece8dc;color:var(--plum);font-size:11px;font-weight:900}
        .entry-link{color:var(--plum);font-weight:900;font-size:13px;white-space:nowrap}
        .info-band{display:grid;grid-template-columns:1fr 1fr;gap:70px;align-items:center}
        .check-list{padding:0;margin:26px 0 0;list-style:none}
        .check-list li{display:flex;gap:12px;padding:13px 0;border-bottom:1px solid var(--line);color:#50584c}
        .check-list li:before{content:"✓";color:var(--plum);font-weight:900}
        .interface-card{background:var(--ink);border-radius:20px;padding:24px;color:var(--white);box-shadow:var(--shadow)}
        .interface-head{display:flex;justify-content:space-between;align-items:center;color:#aeb9a8;font-size:12px}
        .interface-title{font-size:24px;font-weight:900;margin:28px 0 20px}
        .interface-row{display:flex;justify-content:space-between;border-top:1px solid var(--line-dark);padding:15px 0;font-size:13px}
        .interface-row b{color:var(--lime)}
        .steps{display:grid;grid-template-columns:repeat(3,1fr);gap:0;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
        .step{padding:27px 28px 27px 0;border-right:1px solid var(--line);margin-right:28px}.step:last-child{border:0;margin:0}
        .step-num{color:var(--coral);font-size:13px;font-weight:900;letter-spacing:.12em}.step h3{margin:14px 0 8px}.step p{font-size:14px;color:var(--muted);margin:0}
        .faq-wrap{max-width:850px;margin:0 auto}.faq-item{border-top:1px solid var(--line)}.faq-item:last-child{border-bottom:1px solid var(--line)}
        .faq-question{width:100%;display:flex;justify-content:space-between;align-items:center;text-align:left;background:none;border:0;padding:21px 0;font-weight:900;color:var(--ink)}
        .faq-question span:last-child{font-size:23px;color:var(--plum);transition:.2s}.faq-answer{display:none;color:var(--muted);font-size:14px;padding:0 45px 20px 0}.faq-item.open .faq-answer{display:block}.faq-item.open .faq-question span:last-child{transform:rotate(45deg)}
        .cta{background:var(--plum);color:var(--white);padding:58px 0}.cta-inner{display:flex;justify-content:space-between;align-items:center;gap:30px}.cta h2{margin-bottom:8px}.cta p{color:#eadce5;margin:0}
        .site-footer{background:var(--ink);color:var(--white);padding:62px 0 24px}.footer-grid{display:grid;grid-template-columns:1.5fr repeat(3,1fr);gap:42px}.footer-brand{font-weight:900;font-size:20px}.footer-copy{color:#aeb9a8;font-size:13px;max-width:290px;margin:14px 0 0}.footer-title{color:var(--lime);font-size:13px;font-weight:900;margin-bottom:13px}.footer-links{display:grid;gap:7px}.footer-links a{color:#c2cabe;font-size:13px;transition:.2s}.footer-links a:hover{color:var(--lime);padding-left:4px}.footer-bottom{display:flex;justify-content:space-between;gap:20px;border-top:1px solid var(--line-dark);margin-top:45px;padding-top:19px;color:#899587;font-size:11px}
        @media(max-width:1024px){.hero-layout{gap:40px}.main-nav{gap:2px}.main-nav a{padding:8px 9px}.brand{min-width:210px}.footer-grid{grid-template-columns:1.3fr repeat(3,1fr);gap:25px}}
        @media(max-width:768px){
            .container{width:min(var(--container),calc(100% - 32px))}.nav-wrap{height:68px}.brand{min-width:0;flex:1}.brand-text{font-size:14px}.brand-text small{display:none}.nav-action{display:none}.menu-toggle{display:block}.main-nav{display:none;position:absolute;top:68px;left:0;right:0;padding:12px 16px;background:var(--paper);border-bottom:1px solid var(--line);box-shadow:0 12px 25px rgba(23,25,22,.08);flex-direction:column;align-items:stretch}.main-nav.show{display:flex}.main-nav a{text-align:center;padding:11px}.notice-inner{min-height:40px}.notice-inner span:last-child{display:none}.hero{padding:48px 0 58px}.hero-layout,.info-band{grid-template-columns:1fr;gap:38px}.hero h1{font-size:clamp(38px,11vw,58px)}.hero-copy{font-size:16px}.entry-board{transform:none}.section{padding:62px 0}.section-head{display:block;margin-bottom:25px}.section-head .section-intro{margin-top:12px}.entry-grid{grid-template-columns:1fr}.steps{grid-template-columns:1fr}.step{border-right:0;border-bottom:1px solid var(--line);margin:0;padding:22px 0}.step:last-child{border-bottom:0}.cta-inner{display:block}.cta .button{margin-top:23px}.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-bottom:7px}}
        @media(max-width:520px){h2{font-size:31px}.hero-actions .button{width:100%}.entry-card{grid-template-columns:auto 1fr;gap:13px;padding:18px}.entry-link{grid-column:2}.entry-icon{width:45px;height:45px;font-size:18px}.hero-note{gap:10px}.footer-grid{grid-template-columns:1fr}.footer-grid>div:first-child{grid-column:auto}}

/* roulang page: category3 */
:root{
            --ink:#171916;
            --ink-soft:#242923;
            --paper:#f3f0e8;
            --paper-deep:#e7e1d5;
            --lime:#c9f04a;
            --lime-dark:#9fca24;
            --coral:#ef765d;
            --plum:#8c4d72;
            --white:#fffdf8;
            --muted:#72786c;
            --line:rgba(23,25,22,.13);
            --line-dark:rgba(255,255,255,.14);
            --radius:18px;
            --radius-sm:10px;
            --shadow:0 18px 50px rgba(23,25,22,.12);
            --container:1180px;
        }
        *{box-sizing:border-box}
        html{scroll-behavior:smooth}
        body{
            margin:0;color:var(--ink);background:var(--paper);
            font-family:"Noto Sans SC","PingFang SC","Microsoft YaHei",Arial,sans-serif;
            font-size:16px;line-height:1.75;-webkit-font-smoothing:antialiased
        }
        a{color:inherit;text-decoration:none}
        a:focus-visible,button:focus-visible{outline:3px solid var(--coral);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}
        .site-header{
            position:sticky;top:0;z-index:20;background:rgba(243,240,232,.95);
            border-bottom:1px solid var(--line);backdrop-filter:blur(14px)
        }
        .nav-wrap{height:78px;display:flex;align-items:center;gap:28px}
        .brand{display:flex;align-items:center;gap:12px;min-width:245px;font-weight:900;letter-spacing:-.04em}
        .brand-mark{
            width:38px;height:38px;border-radius:11px;background:var(--ink);color:var(--lime);
            display:grid;place-items:center;font-size:19px;box-shadow:4px 4px 0 var(--coral)
        }
        .brand-text{font-size:16px;line-height:1.25}
        .brand-text small{display:block;color:var(--muted);font-size:10px;letter-spacing:.12em;font-weight:700;margin-top:3px}
        .main-nav{display:flex;align-items:center;gap:8px;margin-left:auto}
        .main-nav a{
            padding:9px 13px;border-radius:8px;font-size:14px;font-weight:700;color:#51584b;
            transition:.2s ease
        }
        .main-nav a:hover,.main-nav a.active{color:var(--ink);background:var(--paper-deep)}
        .main-nav a.active{box-shadow:inset 0 -3px 0 var(--lime-dark)}
        .nav-action,.button{
            display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:45px;
            padding:0 20px;border:0;border-radius:10px;background:var(--lime);color:var(--ink);
            font-weight:900;transition:transform .2s ease,box-shadow .2s ease,background .2s ease
        }
        .nav-action{min-height:40px;padding:0 16px;font-size:14px}
        .button:hover,.nav-action:hover{transform:translateY(-3px);background:#d8fb68;box-shadow:0 9px 20px rgba(159,202,36,.28)}
        .button.dark{background:var(--ink);color:var(--lime)}
        .button.dark:hover{background:#30382b}
        .menu-toggle{display:none;border:0;background:transparent;padding:9px;font-size:24px}
        .notice-bar{background:var(--ink);color:#dfe8d5;font-size:12px;padding:8px 0}
        .notice-inner{display:flex;justify-content:space-between;gap:20px}
        .notice-bar b{color:var(--lime)}
        .page-hero{padding:78px 0 70px;background:var(--paper);border-bottom:1px solid var(--line)}
        .breadcrumb{font-size:13px;color:var(--muted);margin-bottom:28px}
        .breadcrumb a:hover{color:var(--plum)}
        .eyebrow,.section-kicker{
            display:inline-flex;align-items:center;gap:9px;color:var(--plum);
            font-size:12px;font-weight:900;letter-spacing:.13em;text-transform:uppercase
        }
        .eyebrow:before,.section-kicker:before{content:"";width:28px;height:3px;background:var(--coral);border-radius:4px}
        h1,h2,h3,p{margin-top:0}
        h1{font-size:clamp(38px,6vw,72px);line-height:1.08;letter-spacing:-.065em;margin:18px 0 22px;max-width:800px}
        h2{font-size:clamp(28px,4vw,44px);line-height:1.2;letter-spacing:-.05em;margin:10px 0 14px}
        h3{font-size:20px;line-height:1.35;margin:0 0 9px}
        .hero-description{max-width:680px;color:#5d6559;font-size:18px;line-height:1.9;margin-bottom:30px}
        .hero-actions{display:flex;gap:12px;flex-wrap:wrap}
        .section{padding:88px 0}
        .section.alt{background:var(--paper-deep)}
        .section-head{display:flex;align-items:end;justify-content:space-between;gap:30px;margin-bottom:36px}
        .section-intro{max-width:540px;color:var(--muted);margin:0}
        .highlight{
            display:grid;grid-template-columns:1.08fr .92fr;gap:0;background:var(--ink);
            color:var(--white);border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow)
        }
        .highlight-copy{padding:44px 48px}
        .highlight-copy .section-kicker{color:var(--lime)}
        .highlight-copy p{color:#bcc7b4;max-width:610px}
        .highlight-side{background:var(--coral);padding:40px;display:flex;flex-direction:column;justify-content:space-between;min-height:260px}
        .highlight-side strong{font-size:58px;line-height:1;color:var(--ink);letter-spacing:-.08em}
        .highlight-side span{font-size:13px;color:#542b26;font-weight:800}
        .topic-filter{display:flex;gap:9px;flex-wrap:wrap;margin:25px 0 40px}
        .topic-filter span,.tag{
            display:inline-flex;padding:5px 11px;border-radius:6px;background:#ece8dc;color:var(--plum);
            font-size:12px;font-weight:900
        }
        .topic-filter span:first-child{background:var(--lime);color:var(--ink)}
        .timeline{border-top:1px solid var(--line)}
        .timeline-item{
            display:grid;grid-template-columns:120px 1fr 105px;gap:28px;align-items:start;
            padding:27px 0;border-bottom:1px solid var(--line);transition:.2s ease
        }
        .timeline-item:hover{padding-left:10px;background:rgba(255,253,248,.45)}
        .date{font-size:13px;font-weight:900;color:var(--plum);padding-top:3px}
        .timeline-item p{color:var(--muted);font-size:14px;margin:0;max-width:720px}
        .timeline-link{color:var(--plum);font-size:13px;font-weight:900;text-align:right;padding-top:4px}
        .timeline-link:hover{color:var(--ink)}
        .status-panel{display:grid;grid-template-columns:repeat(3,1fr);gap:14px;margin-top:36px}
        .status-box{padding:22px;background:var(--white);border:1px solid var(--line);border-radius:var(--radius-sm)}
        .status-box b{display:block;font-size:26px;line-height:1.2;margin-bottom:5px}
        .status-box span{color:var(--muted);font-size:13px}
        .guide-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
        .guide-card{padding:28px;background:var(--white);border:1px solid var(--line);border-radius:var(--radius);transition:.2s ease}
        .guide-card:hover{transform:translateY(-5px);box-shadow:var(--shadow);border-color:var(--lime-dark)}
        .guide-number{font-size:13px;color:var(--coral);font-weight:900;letter-spacing:.1em;margin-bottom:30px}
        .guide-card p{color:var(--muted);font-size:14px;margin-bottom:20px}
        .faq-list{max-width:850px;margin:0 auto;border-top:1px solid var(--line)}
        details{border-bottom:1px solid var(--line);padding:20px 0}
        summary{cursor:pointer;font-weight:900;list-style:none;padding-right:30px;position:relative}
        summary::-webkit-details-marker{display:none}
        summary:after{content:"+";position:absolute;right:4px;color:var(--plum);font-size:24px;line-height:1}
        details[open] summary:after{content:"−"}
        details p{color:var(--muted);font-size:14px;margin:14px 30px 0 0}
        .cta{
            background:var(--lime);border-radius:var(--radius);padding:42px 48px;
            display:flex;align-items:center;justify-content:space-between;gap:30px
        }
        .cta h2{margin-bottom:8px}
        .cta p{margin:0;color:#4e5a37}
        .site-footer{background:var(--ink);color:var(--white);padding:58px 0 25px}
        .footer-grid{display:grid;grid-template-columns:1.5fr repeat(3,1fr);gap:42px}
        .footer-brand{font-size:19px;font-weight:900;letter-spacing:-.04em;margin-bottom:12px}
        .footer-copy{color:#aeb9a7;font-size:13px;max-width:300px;margin:0}
        .footer-title{color:var(--lime);font-size:13px;font-weight:900;margin-bottom:14px}
        .footer-links{display:flex;flex-direction:column;gap:7px}
        .footer-links a{color:#c4cec0;font-size:13px;transition:.2s ease}
        .footer-links a:hover{color:var(--lime);transform:translateX(3px)}
        .footer-bottom{display:flex;justify-content:space-between;gap:20px;border-top:1px solid var(--line-dark);margin-top:45px;padding-top:20px;color:#8e998a;font-size:11px}
        @media(max-width:1024px){
            .brand{min-width:205px}.main-nav{gap:2px}.main-nav a{padding:8px 9px}
            .highlight{grid-template-columns:1fr}.highlight-side{min-height:180px}
        }
        @media(max-width:768px){
            .container{width:min(var(--container),calc(100% - 32px))}
            .nav-wrap{height:68px;gap:10px}.brand{min-width:0;flex:1}.brand-text{font-size:14px}
            .brand-text small{font-size:8px}.brand-mark{width:34px;height:34px}
            .menu-toggle{display:block}.main-nav{
                display:none;position:absolute;top:68px;left:16px;right:16px;padding:12px;
                background:var(--white);border:1px solid var(--line);border-radius:14px;
                box-shadow:var(--shadow);flex-direction:column;align-items:stretch
            }
            .main-nav.open{display:flex}.main-nav a{padding:12px 14px}
            .nav-action{font-size:12px;padding:0 11px;min-height:36px}
            .notice-inner{display:block}.notice-inner span:last-child{display:none}
            .page-hero{padding:52px 0 50px}.hero-description{font-size:16px}
            .section{padding:62px 0}.section-head{display:block;margin-bottom:25px}
            .section-intro{margin-top:12px}.highlight-copy{padding:32px 26px}.highlight-side{padding:30px 26px}
            .timeline-item{grid-template-columns:82px 1fr;gap:15px}.timeline-link{grid-column:2;text-align:left}
            .status-panel,.guide-grid{grid-template-columns:1fr}.cta{display:block;padding:30px 25px}.cta .button{margin-top:22px}
            .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:7px}
        }
        @media(max-width:520px){
            h1{font-size:41px}.hero-actions .button{width:100%}.highlight-side strong{font-size:46px}
            .timeline-item{grid-template-columns:1fr;gap:5px}.timeline-link{grid-column:auto}
            .footer-grid{grid-template-columns:1fr}
        }

/* roulang page: category4 */
:root{
            --ink:#171916;
            --ink-soft:#242923;
            --paper:#f3f0e8;
            --paper-deep:#e7e1d5;
            --lime:#c9f04a;
            --lime-dark:#9fca24;
            --coral:#ef765d;
            --plum:#8c4d72;
            --white:#fffdf8;
            --muted:#72786c;
            --line:rgba(23,25,22,.13);
            --line-dark:rgba(255,255,255,.14);
            --radius:18px;
            --radius-sm:10px;
            --shadow:0 18px 50px rgba(23,25,22,.12);
            --container:1180px;
        }
        *{box-sizing:border-box}
        html{scroll-behavior:smooth}
        body{
            margin:0;color:var(--ink);background:var(--paper);
            font-family:"Noto Sans SC","PingFang SC","Microsoft YaHei",Arial,sans-serif;
            font-size:16px;line-height:1.75;-webkit-font-smoothing:antialiased;
        }
        h1,h2,h3,h4,p{margin-top:0}
        h1,h2,h3,h4{font-weight:900;letter-spacing:-.045em}
        h1{font-size:clamp(40px,5.3vw,72px);line-height:1.1;margin:18px 0 22px}
        h2{font-size:clamp(30px,3.6vw,48px);line-height:1.2;margin:10px 0 16px}
        h3{font-size:21px;line-height:1.35}
        a{color:inherit;text-decoration:none}
        img{max-width:100%;display:block}
        button,input{font:inherit}
        button{cursor:pointer}
        .container{width:min(var(--container),calc(100% - 48px));margin:0 auto}
        .site-header{
            position:sticky;top:0;z-index:20;background:rgba(243,240,232,.94);
            border-bottom:1px solid var(--line);backdrop-filter:blur(14px)
        }
        .nav-wrap{height:78px;display:flex;align-items:center;gap:28px}
        .brand{display:flex;align-items:center;gap:12px;min-width:245px;font-weight:900;letter-spacing:-.04em}
        .brand-mark{
            width:38px;height:38px;border-radius:11px;background:var(--ink);color:var(--lime);
            display:grid;place-items:center;font-size:19px;box-shadow:4px 4px 0 var(--coral)
        }
        .brand-text{font-size:16px;line-height:1.25}
        .brand-text small{display:block;color:var(--muted);font-size:10px;letter-spacing:.12em;font-weight:700;margin-top:3px}
        .main-nav{display:flex;align-items:center;gap:8px;margin-left:auto}
        .main-nav a{
            padding:9px 13px;border-radius:8px;font-size:14px;font-weight:700;color:#51584b;
            transition:.2s ease
        }
        .main-nav a:hover,.main-nav a.active{color:var(--ink);background:var(--paper-deep)}
        .main-nav a.active{box-shadow:inset 0 -3px 0 var(--lime-dark)}
        .nav-action,.button{
            display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:45px;
            padding:0 20px;border:0;border-radius:10px;background:var(--lime);color:var(--ink);
            font-weight:900;transition:transform .2s ease,box-shadow .2s ease,background .2s ease
        }
        .nav-action{min-height:40px;padding:0 16px;font-size:14px}
        .button:hover,.nav-action:hover{transform:translateY(-3px);background:#d8fb68;box-shadow:0 9px 20px rgba(159,202,36,.28)}
        .button.dark{background:var(--ink);color:var(--lime)}
        .button.dark:hover{background:#30382b}
        .button.outline{background:transparent;border:1px solid var(--line);color:var(--ink)}
        .button.outline:hover{background:var(--white);border-color:var(--lime-dark)}
        a:focus-visible,button:focus-visible{outline:3px solid var(--coral);outline-offset:3px}
        .menu-toggle{display:none;border:0;background:transparent;padding:9px;font-size:24px}
        .notice-bar{background:var(--ink);color:#d9dfd2;font-size:12px}
        .notice-inner{min-height:35px;display:flex;align-items:center;justify-content:space-between;gap:18px}
        .notice-inner strong{color:var(--lime)}
        .page-hero{padding:76px 0 68px;background:var(--paper);border-bottom:1px solid var(--line)}
        .page-hero-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:76px;align-items:center}
        .eyebrow,.section-kicker{
            display:inline-flex;align-items:center;gap:9px;color:var(--plum);
            font-size:12px;font-weight:900;letter-spacing:.13em
        }
        .eyebrow:before,.section-kicker:before{content:"";width:28px;height:3px;background:var(--coral);border-radius:4px}
        .hero-copy{max-width:630px;color:#5d6559;font-size:18px;line-height:1.9}
        .hero-actions{display:flex;gap:12px;flex-wrap:wrap;margin:30px 0 20px}
        .hero-note{display:flex;gap:20px;flex-wrap:wrap;color:var(--muted);font-size:12px}
        .hero-note b{color:var(--ink);margin-right:4px}
        .download-art{min-height:380px;display:flex;align-items:center;justify-content:center;position:relative}
        .phone{
            width:230px;height:420px;border:9px solid var(--ink);border-radius:32px;background:#30382b;
            padding:18px 14px;box-shadow:16px 18px 0 rgba(23,25,22,.12),var(--shadow);position:relative;z-index:2
        }
        .phone:before{content:"";display:block;width:70px;height:6px;border-radius:8px;background:#606b58;margin:0 auto 20px}
        .phone-screen{height:345px;border-radius:18px;background:var(--paper);padding:16px 12px;overflow:hidden}
        .phone-brand{font-size:12px;font-weight:900;color:var(--plum);margin-bottom:17px}
        .phone-screen h4{font-size:20px;margin-bottom:14px}
        .phone-line{height:9px;background:#d9d4c7;border-radius:5px;margin:8px 0}
        .phone-line.short{width:65%}
        .phone-tile{margin-top:18px;background:var(--lime);border-radius:12px;padding:12px;font-size:11px;font-weight:900}
        .phone-status{display:flex;justify-content:space-between;margin-top:16px;color:var(--muted);font-size:10px}
        .art-dot{position:absolute;width:74px;height:74px;border-radius:50%;background:var(--coral);right:6%;top:8%;opacity:.9}
        .art-grid{position:absolute;width:210px;height:150px;left:2%;bottom:5%;opacity:.35;background-image:linear-gradient(var(--plum) 1px,transparent 1px),linear-gradient(90deg,var(--plum) 1px,transparent 1px);background-size:18px 18px}
        .art-label{position:absolute;right:0;bottom:16%;padding:13px 16px;border-radius:12px;background:var(--white);font-weight:900;font-size:12px;box-shadow:0 12px 28px rgba(23,25,22,.14);transform:rotate(4deg)}
        .section{padding:88px 0}
        .section.alt{background:var(--paper-deep)}
        .section-head{display:flex;align-items:end;justify-content:space-between;gap:30px;margin-bottom:34px}
        .section-intro{max-width:540px;color:var(--muted);margin:0}
        .download-panel{display:grid;grid-template-columns:1.1fr .9fr;gap:46px;align-items:stretch}
        .info-card,.version-card,.step-card,.faq-item{
            background:var(--white);border:1px solid var(--line);border-radius:var(--radius)
        }
        .info-card{padding:34px}
        .info-card h3{margin:8px 0 12px}
        .info-card p{color:var(--muted);margin-bottom:24px}
        .info-points{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin:0;padding:0;list-style:none}
        .info-points li{padding:13px 14px;background:#eeeade;border-radius:10px;font-size:13px;font-weight:800}
        .info-points li span{display:block;color:var(--plum);font-size:11px;margin-bottom:3px}
        .version-card{padding:30px;background:var(--ink);color:var(--white);position:relative;overflow:hidden}
        .version-card:after{content:"APP";position:absolute;right:-10px;bottom:-25px;font-size:100px;font-weight:900;color:rgba(201,240,74,.08)}
        .version-card .tag{background:var(--lime);color:var(--ink)}
        .version-card h3{margin:20px 0 18px;color:var(--white)}
        .version-list{border-top:1px solid var(--line-dark);margin:0 0 25px;padding:0;list-style:none;position:relative;z-index:1}
        .version-list li{display:flex;justify-content:space-between;gap:15px;padding:12px 0;border-bottom:1px solid var(--line-dark);font-size:13px;color:#bdc7b8}
        .version-list strong{color:var(--white)}
        .version-card .button{position:relative;z-index:1;width:100%}
        .compat-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
        .compat-item{padding:25px 24px;border-top:4px solid var(--lime);background:var(--white);border-radius:var(--radius-sm);border-left:1px solid var(--line);border-right:1px solid var(--line);border-bottom:1px solid var(--line)}
        .compat-item:nth-child(2){border-top-color:var(--coral)}
        .compat-item:nth-child(3){border-top-color:var(--plum)}
        .compat-icon{font-size:25px;margin-bottom:13px}
        .compat-item h3{font-size:18px;margin-bottom:7px}
        .compat-item p{color:var(--muted);font-size:14px;margin:0}
        .steps{display:grid;grid-template-columns:repeat(4,1fr);gap:0;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
        .step-card{border:0;border-radius:0;background:transparent;padding:28px 25px 30px 0;border-right:1px solid var(--line);margin-right:25px}
        .step-card:last-child{border-right:0;margin-right:0}
        .step-number{color:var(--coral);font-size:13px;font-weight:900;letter-spacing:.1em}
        .step-card h3{font-size:18px;margin:13px 0 7px}
        .step-card p{font-size:14px;color:var(--muted);margin:0}
        .tips{display:grid;grid-template-columns:.8fr 1.2fr;gap:65px;align-items:start}
        .tips-copy p{color:var(--muted)}
        .tips-list{margin:0;padding:0;list-style:none}
        .tips-list li{display:flex;gap:15px;padding:16px 0;border-bottom:1px solid var(--line)}
        .tips-list b{color:var(--plum);min-width:24px}
        .tips-list span{color:#50584c;font-size:15px}
        .faq-wrap{max-width:850px;margin:0 auto}
        .faq-item{margin-bottom:12px;overflow:hidden}
        .faq-question{width:100%;border:0;background:transparent;padding:19px 22px;text-align:left;display:flex;justify-content:space-between;gap:20px;font-weight:900;color:var(--ink)}
        .faq-question:after{content:"+";font-size:22px;line-height:1;color:var(--plum)}
        .faq-item.open .faq-question:after{content:"−"}
        .faq-answer{display:none;padding:0 22px 20px;color:var(--muted);font-size:14px}
        .faq-item.open .faq-answer{display:block}
        .cta{padding:66px 0;background:var(--lime)}
        .cta-inner{display:flex;align-items:center;justify-content:space-between;gap:30px}
        .cta h2{margin-bottom:8px}
        .cta p{margin:0;color:#4d5b31}
        .site-footer{background:var(--ink);color:var(--white);padding:54px 0 25px}
        .footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:35px}
        .footer-brand{font-size:19px;font-weight:900;letter-spacing:-.04em;margin-bottom:12px}
        .footer-copy{color:#aeb9a9;font-size:13px;max-width:300px;margin:0}
        .footer-title{color:var(--lime);font-size:13px;font-weight:900;margin-bottom:15px}
        .footer-links{display:flex;flex-direction:column;gap:8px}
        .footer-links a{color:#c4ccc0;font-size:13px;transition:.2s ease}
        .footer-links a:hover{color:var(--lime);padding-left:4px}
        .footer-bottom{display:flex;justify-content:space-between;gap:20px;border-top:1px solid var(--line-dark);margin-top:42px;padding-top:20px;color:#899487;font-size:11px}
        @media(max-width:1024px){
            .nav-wrap{gap:16px}.brand{min-width:210px}.main-nav a{padding:8px 8px}
            .page-hero-grid{gap:35px}.download-panel,.tips{gap:28px}
        }
        @media(max-width:768px){
            .container{width:min(var(--container),calc(100% - 32px))}
            .nav-wrap{height:68px}.brand{min-width:0;flex:1}.brand-text{font-size:14px}.brand-text small{display:none}
            .main-nav{display:none;position:absolute;left:16px;right:16px;top:68px;padding:12px;background:var(--white);border:1px solid var(--line);border-radius:14px;box-shadow:var(--shadow);flex-direction:column;align-items:stretch}
            .main-nav.show{display:flex}.main-nav a{text-align:center}.nav-action{display:none}.menu-toggle{display:block}
            .notice-inner{min-height:32px}.notice-inner span:last-child{display:none}
            .page-hero{padding:54px 0 45px}.page-hero-grid,.download-panel,.tips{grid-template-columns:1fr}
            .download-art{min-height:330px;order:-1}.phone{width:190px;height:350px}.phone-screen{height:285px}.art-grid{left:5%;bottom:1%}
            .section{padding:62px 0}.section-head{display:block;margin-bottom:25px}.section-head .section-intro{margin-top:12px}
            .compat-grid{grid-template-columns:1fr}.steps{grid-template-columns:1fr;border-bottom:0}
            .step-card{border-right:0;border-bottom:1px solid var(--line);margin:0;padding:22px 0}
            .info-points{grid-template-columns:1fr}.cta-inner{display:block}.cta .button{margin-top:22px}
            .footer-grid{grid-template-columns:1fr 1fr;gap:30px}.footer-bottom{display:block}.footer-bottom span{display:block;margin-top:7px}
        }
        @media(max-width:520px){
            h1{font-size:40px}.hero-copy{font-size:16px}.hero-actions .button{width:100%}
            .info-card,.version-card{padding:24px}.download-art{min-height:300px}.art-label{right:2%;font-size:11px}
            .footer-grid{grid-template-columns:1fr}.footer-bottom{margin-top:30px}
        }

/* 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}