/* roulang page: index */
:root{
  --ink:#111412;
  --ink-2:#181d19;
  --panel:#202721;
  --panel-2:#29312b;
  --cream:#f2f0e8;
  --muted:#aeb7ad;
  --muted-dark:#687169;
  --lime:#c8f346;
  --lime-deep:#9fca24;
  --orange:#ff795f;
  --line:rgba(222,236,218,.14);
  --line-dark:#d9ded5;
  --radius:18px;
  --radius-sm:11px;
  --shadow:0 18px 50px rgba(0,0,0,.22);
  --ease:all .25s ease;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",Arial,sans-serif;color:var(--ink);background:var(--cream);line-height:1.7;-webkit-font-smoothing:antialiased}
a{color:inherit;text-decoration:none}
img{display:block;max-width:100%}
button,input{font:inherit}
button{cursor:pointer}
.container{width:min(1180px,calc(100% - 48px));margin:auto}
.site-header{position:sticky;top:0;z-index:20;background:rgba(17,20,18,.94);border-bottom:1px solid var(--line);backdrop-filter:blur(14px)}
.navbar{height:78px;display:flex;align-items:center;gap:34px}
.brand{display:flex;align-items:center;gap:11px;color:#fff;font-weight:800;letter-spacing:-.04em;white-space:nowrap}
.brand-mark{display:grid;place-items:center;width:34px;height:34px;border-radius:9px;background:var(--lime);color:var(--ink);font-size:13px;font-weight:900;box-shadow:4px 4px 0 rgba(255,121,95,.8)}
.brand-text{font-size:17px}
.main-nav{display:flex;align-items:center;gap:6px;margin-left:auto}
.main-nav a{color:#c5cdc4;font-size:14px;padding:9px 13px;border-radius:9px;transition:var(--ease)}
.main-nav a:hover,.main-nav a.active{color:var(--lime);background:rgba(200,243,70,.08)}
.nav-action{background:var(--lime)!important;color:var(--ink)!important;font-weight:800!important;margin-left:8px}
.nav-action:hover{background:#dcff70!important;transform:translateY(-2px)}
.menu-toggle{display:none;background:none;border:1px solid var(--line);color:#fff;width:42px;height:38px;border-radius:9px}
.hero{background:var(--ink);color:#fff;overflow:hidden;position:relative}
.hero:before{content:"";position:absolute;inset:0;background-image:linear-gradient(rgba(200,243,70,.045) 1px,transparent 1px),linear-gradient(90deg,rgba(200,243,70,.045) 1px,transparent 1px);background-size:38px 38px;mask-image:linear-gradient(90deg,#000,transparent 78%)}
.hero-inner{position:relative;display:grid;grid-template-columns:1.02fr .98fr;gap:70px;align-items:center;min-height:650px;padding:86px 0}
.eyebrow,.section-kicker{display:inline-flex;align-items:center;gap:8px;color:var(--lime);font-size:12px;font-weight:800;letter-spacing:.12em;text-transform:uppercase}
.eyebrow:before,.section-kicker:before{content:"";width:22px;height:2px;background:var(--lime)}
.hero h1{font-size:clamp(36px,5vw,68px);line-height:1.12;letter-spacing:-.055em;max-width:720px;margin:22px 0 24px}
.hero h1 span{color:var(--lime)}
.hero-copy{font-size:17px;color:#bfc8bf;max-width:620px}
.hero-buttons{display:flex;gap:12px;margin-top:34px;flex-wrap:wrap}
.btn{display:inline-flex;justify-content:center;align-items:center;gap:9px;min-height:48px;padding:0 21px;border:1px solid transparent;border-radius:10px;font-size:14px;font-weight:800;transition:var(--ease)}
.btn-primary{background:var(--lime);color:var(--ink)}
.btn-primary:hover{background:#ddff76;transform:translateY(-3px);box-shadow:0 10px 24px rgba(200,243,70,.18)}
.btn-secondary{border-color:rgba(255,255,255,.2);color:#fff;background:rgba(255,255,255,.04)}
.btn-secondary:hover{border-color:var(--lime);color:var(--lime);transform:translateY(-3px)}
.btn-orange{background:var(--orange);color:#241613}
.btn-orange:hover{background:#ff987f;transform:translateY(-2px)}
.btn:focus,.main-nav a:focus,.faq-question:focus,.menu-toggle:focus{outline:3px solid rgba(200,243,70,.45);outline-offset:3px}
.hero-notes{display:flex;gap:22px;margin-top:42px;flex-wrap:wrap}
.hero-note{padding-left:12px;border-left:1px solid var(--lime);font-size:12px;color:#aeb8ae}
.hero-note strong{display:block;color:#fff;font-size:14px;margin-bottom:2px}
.simulator-window{position:relative;border:1px solid rgba(200,243,70,.3);border-radius:24px;background:#242c26;box-shadow:var(--shadow);padding:16px;transform:rotate(1.5deg)}
.window-bar{display:flex;align-items:center;gap:7px;padding:4px 4px 15px;color:#9eaa9e;font-size:12px}
.window-dot{width:8px;height:8px;border-radius:50%;background:var(--orange)}
.window-dot:nth-child(2){background:#e4c853}.window-dot:nth-child(3){background:var(--lime)}
.window-title{margin-left:auto}
.screen{height:290px;border-radius:15px;background:#39463b;position:relative;overflow:hidden;padding:24px;background-image:linear-gradient(135deg,rgba(200,243,70,.13),transparent 50%),linear-gradient(45deg,#3b4c3d,#1e2821)}
.screen-label{display:inline-block;background:var(--lime);color:var(--ink);font-weight:900;font-size:11px;padding:4px 9px;border-radius:5px}
.screen h3{color:#fff;font-size:27px;line-height:1.2;margin-top:56px;max-width:250px}
.screen p{color:#c2ccc1;font-size:12px;margin-top:10px}
.screen-wheel{position:absolute;right:29px;bottom:29px;width:91px;height:91px;border:10px solid rgba(200,243,70,.75);border-radius:50%;box-shadow:inset 0 0 0 12px #263129}
.screen-controls{display:flex;align-items:center;justify-content:space-between;padding:18px 4px 4px}
.control-pad{display:grid;grid-template-columns:repeat(3,12px);gap:4px}
.control-pad i{display:block;width:12px;height:12px;background:#768277;border-radius:3px}
.control-pad i:nth-child(2){background:var(--lime)}
.control-buttons{display:flex;gap:8px}.control-buttons i{width:25px;height:25px;border-radius:50%;background:var(--orange);display:block}.control-buttons i:last-child{background:var(--lime)}
.section{padding:105px 0}
.section-dark{background:var(--ink);color:#fff}
.section-head{display:flex;justify-content:space-between;align-items:end;gap:30px;margin-bottom:42px}
.section h2{font-size:clamp(28px,3vw,44px);line-height:1.2;letter-spacing:-.04em;margin-top:12px}
.section-intro{color:var(--muted-dark);max-width:500px;font-size:15px}
.section-dark .section-intro{color:var(--muted)}
.feature-grid{display:grid;grid-template-columns:1.35fr .85fr .85fr;gap:16px}
.feature-card{min-height:270px;padding:28px;border-radius:var(--radius);border:1px solid var(--line-dark);background:#faf9f4;position:relative;overflow:hidden;transition:var(--ease)}
.feature-card:first-child{background:#dfe7d6;min-height:320px}
.feature-card:hover,.play-card:hover,.info-item:hover{transform:translateY(-4px);box-shadow:0 15px 30px rgba(17,20,18,.08);border-color:var(--lime-deep)}
.feature-icon{width:44px;height:44px;border-radius:12px;display:grid;place-items:center;background:var(--ink);color:var(--lime);font-weight:900;margin-bottom:48px}
.feature-card h3{font-size:21px;margin-bottom:8px}.feature-card p{font-size:14px;color:#5f6a61;max-width:310px}
.feature-code{position:absolute;right:25px;top:26px;font-size:34px;font-weight:900;color:rgba(17,20,18,.12)}
.play-layout{display:grid;grid-template-columns:1.22fr .78fr;gap:18px}
.play-card{border-radius:var(--radius);background:var(--panel);border:1px solid var(--line);overflow:hidden;transition:var(--ease)}
.play-main{min-height:430px;position:relative;padding:32px;display:flex;align-items:end;background:linear-gradient(145deg,#52664c,#1e2720 70%)}
.play-main:before{content:"";position:absolute;inset:0;background:radial-gradient(circle at 73% 30%,rgba(200,243,70,.55),transparent 18%),linear-gradient(130deg,transparent 40%,rgba(255,121,95,.38));opacity:.8}
.play-content{position:relative;z-index:1}.play-main h3{font-size:36px;line-height:1.15;margin:13px 0 9px;color:#fff}.play-main p{color:#d5ddd4;max-width:440px;font-size:14px}
.badges{display:flex;gap:7px;flex-wrap:wrap}.badge{display:inline-flex;padding:4px 9px;border-radius:6px;background:rgba(255,255,255,.12);color:#d8e1d5;font-size:11px}.badge.lime{background:var(--lime);color:var(--ink)}.badge.orange{background:var(--orange);color:#281510}
.play-actions{display:flex;align-items:center;gap:18px;margin-top:23px}
.play-side{display:grid;gap:18px}
.mini-play{padding:25px;min-height:206px;background:var(--panel-2);display:flex;flex-direction:column;justify-content:space-between}
.mini-play h3{color:#fff;font-size:20px}.mini-play p{font-size:13px;color:var(--muted)}
.text-link{color:var(--lime);font-size:13px;font-weight:800}
.text-link:hover{text-decoration:underline}
.info-layout{display:grid;grid-template-columns:250px 1fr;gap:55px}
.topic-list{border-left:2px solid #d4dad1}.topic-list a{display:block;padding:12px 0 12px 17px;color:#687269;font-size:14px;border-left:2px solid transparent;margin-left:-2px;transition:var(--ease)}.topic-list a:hover,.topic-list a.active{color:var(--ink);border-color:var(--lime-deep);font-weight:800}
.info-list{display:grid;gap:0}.info-item{display:grid;grid-template-columns:92px 1fr auto;align-items:center;gap:20px;padding:20px 0;border-bottom:1px solid var(--line-dark);transition:var(--ease)}.info-date{font-size:12px;color:var(--muted-dark)}.info-item h3{font-size:17px;margin-bottom:3px}.info-item p{color:var(--muted-dark);font-size:13px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.info-arrow{color:var(--lime-deep);font-size:20px}
.empty-state{padding:35px;border:1px dashed #bcc7b9;border-radius:var(--radius-sm);color:var(--muted-dark);text-align:center}
.download-panel{background:#dce7d4;border-radius:26px;padding:48px;display:grid;grid-template-columns:1fr .8fr;gap:40px;align-items:center;overflow:hidden;position:relative}.download-panel:after{content:"APP";position:absolute;right:35px;bottom:-38px;font-size:160px;font-weight:900;color:rgba(17,20,18,.06)}.download-panel h2{font-size:36px;line-height:1.2;margin:12px 0 14px}.download-panel p{color:#536052;max-width:590px;font-size:15px}.download-meta{display:flex;gap:25px;margin:25px 0;color:#566356;font-size:12px}.download-meta strong{display:block;color:var(--ink);font-size:15px}.install-steps{display:flex;gap:12px;margin-top:27px}.step{font-size:12px;color:#657166}.step b{display:grid;place-items:center;width:28px;height:28px;border-radius:50%;background:var(--ink);color:var(--lime);margin-bottom:6px}.app-visual{position:relative;height:230px;z-index:1}.app-device{width:150px;height:260px;border:7px solid var(--ink);border-radius:25px;background:#53684e;position:absolute;right:90px;top:-12px;box-shadow:18px 18px 0 rgba(17,20,18,.12);padding:20px 12px}.app-device:before{content:"";display:block;width:42px;height:5px;border-radius:5px;background:#333b34;margin:auto}.app-device h4{color:var(--lime);font-size:20px;line-height:1.2;margin-top:46px}.app-device p{font-size:10px;color:#d7e4d1;margin-top:8px}.qr-box{position:absolute;right:0;bottom:0;width:70px;height:70px;border:5px solid var(--ink);background:repeating-linear-gradient(45deg,#fff 0 5px,#222 5px 9px);z-index:2}
.faq-layout{display:grid;grid-template-columns:.7fr 1.3fr;gap:80px}.faq-list{border-top:1px solid var(--line-dark)}.faq-item{border-bottom:1px solid var(--line-dark)}.faq-question{width:100%;display:flex;justify-content:space-between;align-items:center;text-align:left;background:none;border:0;padding:22px 0;color:var(--ink);font-weight:800;font-size:16px}.faq-question span{font-size:24px;font-weight:400;color:var(--lime-deep);transition:var(--ease)}.faq-answer{max-height:0;overflow:hidden;color:var(--muted-dark);font-size:14px;transition:max-height .3s ease}.faq-item.open .faq-answer{max-height:150px;padding:0 34px 21px 0}.faq-item.open .faq-question span{transform:rotate(45deg)}
.cta{background:var(--orange);padding:55px 0}.cta-inner{display:flex;justify-content:space-between;align-items:center;gap:30px}.cta h2{font-size:clamp(27px,3.4vw,44px);line-height:1.2;letter-spacing:-.04em}.cta p{margin-top:8px;color:#51271f;font-size:14px}.cta .btn{background:var(--ink);color:var(--lime)}
.site-footer{background:var(--ink);color:#fff;padding:60px 0 25px}.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:35px;padding-bottom:48px}.footer-brand p{color:var(--muted);font-size:13px;max-width:280px;margin-top:15px}.footer-title{color:var(--lime);font-size:13px;font-weight:800;margin-bottom:14px}.footer-links{display:grid;gap:8px}.footer-links a{color:#aeb8ae;font-size:13px;transition:var(--ease)}.footer-links a:hover{color:var(--lime);padding-left:3px}.footer-note{color:#aeb8ae;font-size:13px;line-height:1.8}.copyright{border-top:1px solid var(--line);padding-top:21px;color:#7e897f;font-size:12px;display:flex;justify-content:space-between;gap:15px}
@media(max-width:1024px){.hero-inner{gap:35px}.main-nav{gap:0}.main-nav a{padding:8px 9px}.feature-grid{grid-template-columns:1fr 1fr}.feature-card:first-child{grid-column:span 2}.info-layout{gap:30px}.download-panel{grid-template-columns:1fr .65fr}}
@media(max-width:768px){.container{width:min(100% - 32px,620px)}.navbar{height:68px}.menu-toggle{display:block;margin-left:auto}.main-nav{position:absolute;left:16px;right:16px;top:76px;display:none;flex-direction:column;align-items:stretch;padding:10px;background:#202721;border:1px solid var(--line);border-radius:13px;box-shadow:var(--shadow)}.main-nav.open{display:flex}.main-nav a{padding:12px}.nav-action{margin:5px 0 0;text-align:center}.brand-text{font-size:14px}.hero-inner{grid-template-columns:1fr;min-height:auto;padding:68px 0 75px}.hero h1{font-size:42px}.simulator-window{max-width:560px;margin:0 auto;transform:none}.section{padding:72px 0}.section-head{display:block;margin-bottom:28px}.section-intro{margin-top:15px}.play-layout,.faq-layout{grid-template-columns:1fr}.play-side{grid-template-columns:1fr 1fr}.info-layout{grid-template-columns:1fr;gap:25px}.topic-list{display:flex;overflow:auto;border:0;border-bottom:1px solid var(--line-dark);gap:20px}.topic-list a{white-space:nowrap;padding:9px 0;border-left:0;border-bottom:2px solid transparent;margin:0}.download-panel{grid-template-columns:1fr;padding:35px 25px}.app-visual{display:none}.footer-grid{grid-template-columns:1fr 1fr}.cta-inner{display:block}.cta .btn{margin-top:22px}}
@media(max-width:520px){.hero h1{font-size:34px}.hero-copy{font-size:15px}.hero-buttons{display:grid;grid-template-columns:1fr}.hero-notes{gap:14px}.screen{height:245px}.screen h3{margin-top:42px;font-size:23px}.feature-grid{grid-template-columns:1fr}.feature-card:first-child{grid-column:auto}.feature-card{min-height:220px}.feature-icon{margin-bottom:35px}.play-side{grid-template-columns:1fr}.play-main{min-height:390px;padding:24px}.play-main h3{font-size:29px}.info-item{grid-template-columns:1fr auto;gap:5px 12px}.info-date{grid-row:2}.info-item p{grid-column:1 / -1;white-space:normal}.download-panel h2{font-size:29px}.download-meta{gap:13px}.install-steps{gap:8px}.step{font-size:11px}.footer-grid{grid-template-columns:1fr;gap:27px}.copyright{display:block}.copyright span{display:block;margin-top:7px}}

/* roulang page: article */
:root{
      --ink:#111412;
      --ink-2:#181d19;
      --panel:#202721;
      --panel-2:#29312b;
      --cream:#f2f0e8;
      --paper:#faf9f4;
      --muted:#aeb7ad;
      --muted-dark:#687169;
      --lime:#c8f346;
      --lime-deep:#9fca24;
      --orange:#ff795f;
      --line:rgba(222,236,218,.14);
      --line-dark:#d9ded5;
      --radius:18px;
      --radius-sm:11px;
      --shadow:0 18px 50px rgba(0,0,0,.22);
      --ease:all .25s ease;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{margin:0;background:var(--cream);color:var(--ink);font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",Arial,sans-serif;line-height:1.75;-webkit-font-smoothing:antialiased}
    a{color:inherit;text-decoration:none}
    img{display:block;max-width:100%}
    button,input{font:inherit}
    button{cursor:pointer}
    .container{width:min(1180px,calc(100% - 48px));margin:0 auto}
    .site-header{position:sticky;top:0;z-index:20;background:rgba(17,20,18,.95);border-bottom:1px solid var(--line);backdrop-filter:blur(14px)}
    .navbar{height:78px;display:flex;align-items:center;gap:30px}
    .brand{display:flex;align-items:center;gap:11px;color:#fff;font-weight:800;letter-spacing:-.04em;white-space:nowrap}
    .brand-mark{display:grid;place-items:center;width:34px;height:34px;border-radius:9px;background:var(--lime);color:var(--ink);font-size:13px;font-weight:900;box-shadow:4px 4px 0 rgba(255,121,95,.8)}
    .brand-text{font-size:17px}
    .main-nav{display:flex;align-items:center;gap:5px;margin-left:auto}
    .main-nav a{color:#c5cdc4;font-size:14px;padding:9px 12px;border-radius:9px;transition:var(--ease)}
    .main-nav a:hover,.main-nav a.active{color:var(--lime);background:rgba(200,243,70,.08)}
    .main-nav .nav-action{background:var(--lime);color:var(--ink);font-weight:800;margin-left:8px}
    .main-nav .nav-action:hover{background:#ddff76;color:var(--ink)}
    .menu-toggle{display:none;background:none;border:1px solid var(--line);color:#fff;width:42px;height:38px;border-radius:9px}
    .article-hero{background:var(--ink);color:#fff;padding:68px 0 76px;position:relative;overflow:hidden}
    .article-hero:before{content:"";position:absolute;inset:0;background-image:linear-gradient(rgba(200,243,70,.045) 1px,transparent 1px),linear-gradient(90deg,rgba(200,243,70,.045) 1px,transparent 1px);background-size:38px 38px;mask-image:linear-gradient(90deg,#000,transparent 85%)}
    .hero-content{position:relative;max-width:880px}
    .breadcrumb{display:flex;align-items:center;gap:10px;flex-wrap:wrap;color:#8f9b91;font-size:13px;margin-bottom:28px}
    .breadcrumb a:hover{color:var(--lime)}
    .breadcrumb span:last-child{color:var(--lime)}
    .eyebrow,.section-kicker{display:inline-flex;align-items:center;gap:8px;color:var(--lime);font-size:12px;font-weight:800;letter-spacing:.1em}
    .eyebrow:before,.section-kicker:before{content:"";width:22px;height:2px;background:var(--lime)}
    .article-hero h1{font-size:clamp(32px,5vw,62px);line-height:1.2;letter-spacing:-.055em;margin:18px 0 22px;max-width:900px}
    .hero-summary{max-width:760px;color:#bfc8bf;font-size:17px;margin:0}
    .article-meta{display:flex;gap:12px;align-items:center;flex-wrap:wrap;margin-top:30px;color:#aeb7ad;font-size:13px}
    .meta-chip{display:inline-flex;align-items:center;min-height:30px;padding:3px 10px;border-radius:7px;background:rgba(200,243,70,.12);color:var(--lime)}
    .meta-dot{width:4px;height:4px;border-radius:50%;background:var(--orange)}
    .article-area{padding:76px 0 105px}
    .article-layout{display:grid;grid-template-columns:minmax(0,790px) 290px;gap:58px;align-items:start}
    .article-card{background:var(--paper);border:1px solid var(--line-dark);border-radius:var(--radius);padding:clamp(26px,5vw,58px);box-shadow:0 12px 35px rgba(17,20,18,.05)}
    .article-content{font-size:16px;color:#39423a}
    .article-content:after{content:"";display:block;clear:both}
    .article-content h2{font-size:30px;line-height:1.3;color:var(--ink);margin:38px 0 15px;letter-spacing:-.03em}
    .article-content h3{font-size:22px;line-height:1.4;color:var(--ink);margin:30px 0 12px}
    .article-content p{margin:0 0 19px}
    .article-content ul,.article-content ol{padding-left:24px;margin:15px 0 24px}
    .article-content li{padding-left:5px;margin:7px 0}
    .article-content a{color:#63840c;text-decoration:underline;text-decoration-color:rgba(99,132,12,.35);text-underline-offset:3px}
    .article-content blockquote{margin:28px 0;padding:20px 24px;border-left:4px solid var(--lime-deep);background:#e9efdf;color:#4d5a4d;border-radius:0 12px 12px 0}
    .article-content img{width:100%;height:auto;border-radius:13px;margin:28px 0 8px}
    .article-content table{width:100%;border-collapse:collapse;margin:24px 0;font-size:14px;display:block;overflow-x:auto}
    .article-content th,.article-content td{min-width:130px;padding:11px 13px;text-align:left;border:1px solid var(--line-dark)}
    .article-content th{background:#e5ebdf;color:var(--ink);font-weight:800}
    .empty-state{padding:56px 20px;text-align:center;color:var(--muted-dark)}
    .empty-icon{width:54px;height:54px;margin:0 auto 18px;border-radius:15px;background:#e7edde;color:#718522;display:grid;place-items:center;font-size:24px;font-weight:900}
    .empty-state h2{margin:0 0 9px;font-size:25px;color:var(--ink)}
    .empty-state p{margin:0 0 23px}
    .side-panel{position:sticky;top:108px}
    .side-box{background:var(--ink-2);border-radius:var(--radius);padding:25px;color:#fff;margin-bottom:16px}
    .side-box h3{font-size:19px;margin:0 0 17px}
    .side-box p{font-size:13px;color:var(--muted);margin:0 0 20px}
    .side-links{border-top:1px solid var(--line)}
    .side-links a{display:flex;justify-content:space-between;gap:10px;padding:12px 0;border-bottom:1px solid var(--line);font-size:13px;color:#c8d0c8;transition:var(--ease)}
    .side-links a:hover{color:var(--lime);padding-left:4px}
    .side-links b{color:var(--lime);font-weight:500}
    .side-download{background:#dfe7d6;color:var(--ink)}
    .side-download p{color:#5f6a61}
    .btn{display:inline-flex;justify-content:center;align-items:center;gap:8px;min-height:47px;padding:0 20px;border-radius:10px;border:1px solid transparent;font-size:14px;font-weight:800;transition:var(--ease)}
    .btn-primary{background:var(--lime);color:var(--ink)}
    .btn-primary:hover{background:#ddff76;transform:translateY(-2px);box-shadow:0 10px 22px rgba(200,243,70,.18)}
    .btn-secondary{border-color:rgba(255,255,255,.2);color:#fff;background:rgba(255,255,255,.04)}
    .btn-secondary:hover{border-color:var(--lime);color:var(--lime);transform:translateY(-2px)}
    .btn-orange{background:var(--orange);color:#281510}
    .btn-orange:hover{background:#ff987f;transform:translateY(-2px)}
    .btn:focus,.main-nav a:focus,.menu-toggle:focus{outline:3px solid rgba(200,243,70,.45);outline-offset:3px}
    .related-section{padding:0 0 105px}
    .section-head{display:flex;justify-content:space-between;align-items:end;gap:24px;margin-bottom:30px}
    .section h2{font-size:clamp(28px,3vw,42px);line-height:1.2;letter-spacing:-.04em;margin:11px 0 0}
    .section-intro{color:var(--muted-dark);font-size:15px;max-width:470px}
    .related-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
    .related-card{background:var(--paper);border:1px solid var(--line-dark);border-radius:var(--radius-sm);padding:24px;transition:var(--ease)}
    .related-card:hover{transform:translateY(-4px);border-color:var(--lime-deep);box-shadow:0 15px 30px rgba(17,20,18,.08)}
    .related-card h3{font-size:19px;line-height:1.4;margin:14px 0 9px}
    .related-card p{font-size:13px;color:var(--muted-dark);margin:0 0 16px}
    .tag{display:inline-flex;padding:4px 9px;border-radius:6px;background:#e2ead8;color:#62731d;font-size:11px;font-weight:700}
    .cta-section{padding:0 0 105px}
    .cta-box{display:flex;justify-content:space-between;align-items:center;gap:28px;background:var(--ink);color:#fff;border-radius:var(--radius);padding:38px 44px;position:relative;overflow:hidden}
    .cta-box:after{content:"";position:absolute;width:220px;height:220px;border:1px solid rgba(200,243,70,.25);border-radius:50%;right:10%;top:-110px}
    .cta-box h2{font-size:clamp(25px,3vw,38px);line-height:1.25;margin:0 0 8px;position:relative;z-index:1}
    .cta-box p{margin:0;color:var(--muted);font-size:14px;position:relative;z-index:1}
    .cta-box .btn{position:relative;z-index:1;white-space:nowrap}
    .site-footer{background:var(--ink);color:#fff;padding:58px 0 24px;border-top:1px solid var(--line)}
    .footer-grid{display:grid;grid-template-columns:1.5fr .8fr .95fr 1.2fr;gap:35px;padding-bottom:45px}
    .footer-brand p,.footer-note{color:var(--muted);font-size:13px;max-width:280px;margin:17px 0 0}
    .footer-title{color:#fff;font-size:14px;font-weight:800;margin-bottom:14px}
    .footer-links{display:flex;flex-direction:column;gap:8px}
    .footer-links a{color:var(--muted);font-size:13px;transition:var(--ease)}
    .footer-links a:hover{color:var(--lime);padding-left:3px}
    .copyright{display:flex;justify-content:space-between;gap:20px;border-top:1px solid var(--line);padding-top:20px;color:#7e897f;font-size:12px}
    @media(max-width:1024px){
      .main-nav{gap:1px}
      .main-nav a{padding:8px 8px;font-size:13px}
      .article-layout{grid-template-columns:minmax(0,1fr) 245px;gap:30px}
      .footer-grid{grid-template-columns:1.3fr 1fr 1fr}
      .footer-grid>div:last-child{grid-column:1/-1}
    }
    @media(max-width:768px){
      .container{width:min(100% - 32px,620px)}
      .navbar{height:68px}
      .menu-toggle{display:block;margin-left:auto}
      .main-nav{display:none;position:absolute;left:16px;right:16px;top:76px;padding:10px;background:var(--ink-2);border:1px solid var(--line);border-radius:13px;box-shadow:var(--shadow);flex-direction:column;align-items:stretch}
      .main-nav.open{display:flex}
      .main-nav a{padding:12px 14px}
      .main-nav .nav-action{margin:5px 0 0;text-align:center}
      .article-hero{padding:48px 0 55px}
      .article-layout{display:block}
      .side-panel{position:static;margin-top:25px}
      .side-box{margin-bottom:14px}
      .article-area{padding:46px 0 70px}
      .article-card{padding:27px 21px}
      .article-content h2{font-size:26px}
      .related-section,.cta-section{padding-bottom:70px}
      .related-grid{grid-template-columns:1fr}
      .cta-box{display:block;padding:30px 25px}
      .cta-box .btn{margin-top:22px;width:100%}
      .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
    }
    @media(max-width:520px){
      .brand-text{font-size:15px}
      .article-hero h1{font-size:34px}
      .hero-summary{font-size:15px}
      .article-meta{gap:8px}
      .section-head{display:block}
      .section-intro{margin-top:14px}
      .footer-grid{grid-template-columns:1fr}
      .copyright{display:block;line-height:2}
      .copyright span{display:block}
      .article-content{font-size:15px}
    }

/* roulang page: category1 */
:root{
      --ink:#111412;
      --ink-2:#181d19;
      --panel:#202721;
      --panel-2:#29312b;
      --cream:#f2f0e8;
      --paper:#faf9f4;
      --soft:#dfe7d6;
      --muted:#aeb7ad;
      --muted-dark:#687169;
      --lime:#c8f346;
      --lime-deep:#9fca24;
      --orange:#ff795f;
      --line:rgba(222,236,218,.14);
      --line-dark:#d9ded5;
      --radius:18px;
      --radius-sm:11px;
      --shadow:0 18px 50px rgba(0,0,0,.22);
      --ease:all .25s ease;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{margin:0;font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",Arial,sans-serif;color:var(--ink);background:var(--cream);line-height:1.7;-webkit-font-smoothing:antialiased}
    a{color:inherit;text-decoration:none}
    img{display:block;max-width:100%}
    button,input{font:inherit}
    button{cursor:pointer}
    .container{width:min(1180px,calc(100% - 48px));margin:auto}
    .site-header{position:sticky;top:0;z-index:20;background:rgba(17,20,18,.95);border-bottom:1px solid var(--line);backdrop-filter:blur(14px)}
    .navbar{height:78px;display:flex;align-items:center;gap:28px}
    .brand{display:flex;align-items:center;gap:11px;color:#fff;font-weight:800;letter-spacing:-.04em;white-space:nowrap}
    .brand-mark{display:grid;place-items:center;width:34px;height:34px;border-radius:9px;background:var(--lime);color:var(--ink);font-size:13px;font-weight:900;box-shadow:4px 4px 0 rgba(255,121,95,.8)}
    .brand-text{font-size:17px}
    .main-nav{display:flex;align-items:center;gap:5px;margin-left:auto}
    .main-nav a{color:#c5cdc4;font-size:14px;padding:9px 12px;border-radius:9px;transition:var(--ease)}
    .main-nav a:hover,.main-nav a.active{color:var(--lime);background:rgba(200,243,70,.08)}
    .main-nav .nav-action{background:var(--lime);color:var(--ink);font-weight:800;margin-left:7px}
    .main-nav .nav-action:hover{background:#ddff76;color:var(--ink);transform:translateY(-2px)}
    .menu-toggle{display:none;background:none;border:1px solid var(--line);color:#fff;width:42px;height:38px;border-radius:9px}
    .hero{background:var(--ink);color:#fff;position:relative;overflow:hidden}
    .hero:before{content:"";position:absolute;inset:0;background-image:linear-gradient(rgba(200,243,70,.045) 1px,transparent 1px),linear-gradient(90deg,rgba(200,243,70,.045) 1px,transparent 1px);background-size:38px 38px;mask-image:linear-gradient(90deg,#000,transparent 82%)}
    .hero-inner{position:relative;display:grid;grid-template-columns:1.05fr .95fr;gap:65px;align-items:center;min-height:570px;padding:82px 0}
    .eyebrow,.section-kicker{display:inline-flex;align-items:center;gap:8px;color:var(--lime);font-size:12px;font-weight:800;letter-spacing:.12em}
    .eyebrow:before,.section-kicker:before{content:"";width:22px;height:2px;background:var(--lime)}
    .hero h1{font-size:clamp(38px,5vw,66px);line-height:1.12;letter-spacing:-.055em;max-width:680px;margin:21px 0 23px}
    .hero h1 span{color:var(--lime)}
    .hero-copy{font-size:17px;color:#bfc8bf;max-width:620px}
    .hero-buttons{display:flex;gap:12px;flex-wrap:wrap;margin-top:32px}
    .btn{display:inline-flex;justify-content:center;align-items:center;gap:9px;min-height:48px;padding:0 21px;border:1px solid transparent;border-radius:10px;font-size:14px;font-weight:800;transition:var(--ease)}
    .btn-primary{background:var(--lime);color:var(--ink)}
    .btn-primary:hover{background:#ddff76;transform:translateY(-3px);box-shadow:0 10px 24px rgba(200,243,70,.18)}
    .btn-secondary{border-color:rgba(255,255,255,.2);color:#fff;background:rgba(255,255,255,.04)}
    .btn-secondary:hover{border-color:var(--lime);color:var(--lime);transform:translateY(-3px)}
    .btn-orange{background:var(--orange);color:#241613}
    .btn-orange:hover{background:#ff987f;transform:translateY(-2px)}
    .btn:focus,.main-nav a:focus,.faq-question:focus,.menu-toggle:focus{outline:3px solid rgba(200,243,70,.45);outline-offset:3px}
    .hero-notes{display:flex;gap:22px;margin-top:38px;flex-wrap:wrap}
    .hero-note{padding-left:12px;border-left:1px solid var(--lime);font-size:12px;color:#aeb8ae}
    .hero-note strong{display:block;color:#fff;font-size:14px;margin-bottom:2px}
    .preview-shell{border:1px solid rgba(255,255,255,.18);background:#202721;border-radius:22px;padding:14px;box-shadow:var(--shadow);transform:rotate(1deg)}
    .preview-bar{display:flex;align-items:center;gap:7px;border-bottom:1px solid var(--line);padding:7px 8px 13px;color:#9fa99f;font-size:12px}
    .preview-dot{width:9px;height:9px;border-radius:50%;background:var(--orange)}
    .preview-dot.green{background:var(--lime)}
    .preview-title{margin-left:auto}
    .preview-screen{min-height:330px;margin-top:14px;border-radius:14px;padding:25px;background:linear-gradient(145deg,#617459 0%,#273128 62%,#171b18 100%);position:relative;overflow:hidden}
    .preview-screen:before{content:"";position:absolute;width:220px;height:220px;right:-40px;top:-40px;border-radius:50%;background:rgba(200,243,70,.24)}
    .screen-label{position:relative;display:flex;justify-content:space-between;align-items:center}
    .screen-label strong{font-size:13px;color:#fff}
    .status{font-size:11px;color:var(--ink);background:var(--lime);padding:3px 8px;border-radius:5px;font-weight:800}
    .game-art{position:relative;display:grid;place-items:center;height:150px;margin:20px 0;border:1px solid rgba(255,255,255,.18);border-radius:12px;background:linear-gradient(135deg,rgba(255,121,95,.55),rgba(17,20,18,.72));color:#fff;text-align:center}
    .game-art b{font-size:28px;letter-spacing:.06em}
    .control-row{position:relative;display:flex;justify-content:space-between;align-items:center;color:#dce7d8;font-size:12px}
    .control-key{display:flex;gap:7px}
    .key{width:28px;height:28px;display:grid;place-items:center;border-radius:7px;background:rgba(255,255,255,.12);border:1px solid rgba(255,255,255,.22);color:var(--lime);font-weight:800}
    .section{padding:102px 0}
    .section-dark{background:var(--ink);color:#fff}
    .section-head{display:flex;justify-content:space-between;align-items:end;gap:30px;margin-bottom:42px}
    .section h2{font-size:clamp(28px,3vw,44px);line-height:1.2;letter-spacing:-.04em;margin:12px 0 0}
    .section-intro{color:var(--muted-dark);max-width:500px;font-size:15px}
    .section-dark .section-intro{color:var(--muted)}
    .trial-layout{display:grid;grid-template-columns:1.35fr .65fr;gap:18px}
    .trial-feature{min-height:375px;border-radius:var(--radius);padding:31px;display:flex;flex-direction:column;justify-content:end;position:relative;overflow:hidden;background:linear-gradient(145deg,#586f52,#212b23 68%);color:#fff}
    .trial-feature:before{content:"";position:absolute;inset:0;background:radial-gradient(circle at 80% 20%,rgba(200,243,70,.55),transparent 22%),linear-gradient(130deg,transparent 42%,rgba(255,121,95,.35))}
    .trial-feature>*{position:relative}
    .trial-feature h3{font-size:34px;line-height:1.15;margin:17px 0 9px}
    .trial-feature p{max-width:500px;color:#d6ded5;font-size:14px}
    .badge-list{display:flex;gap:7px;flex-wrap:wrap}
    .badge{display:inline-flex;padding:4px 9px;border-radius:6px;background:rgba(255,255,255,.13);color:#d8e1d5;font-size:11px}
    .badge.lime{background:var(--lime);color:var(--ink)}
    .badge.orange{background:var(--orange);color:#281510}
    .trial-side{display:grid;gap:18px}
    .side-card{padding:26px;border-radius:var(--radius);background:#e3eadc;border:1px solid #d1dacb;transition:var(--ease)}
    .side-card:nth-child(2){background:#faf9f4}
    .side-card:hover,.step:hover,.guide-item:hover{transform:translateY(-3px);box-shadow:0 15px 30px rgba(17,20,18,.08)}
    .side-number{color:var(--lime-deep);font-size:14px;font-weight:900}
    .side-card h3{font-size:20px;margin:15px 0 7px}
    .side-card p{margin:0;color:#657066;font-size:13px}
    .guide-wrap{display:grid;grid-template-columns:260px 1fr;gap:50px}
    .topic-list{border-left:2px solid #d4dad1}
    .topic-list a{display:block;padding:13px 0 13px 17px;color:#687269;font-size:14px;border-left:2px solid transparent;margin-left:-2px;transition:var(--ease)}
    .topic-list a:hover,.topic-list a.active{color:var(--ink);border-left-color:var(--lime-deep);background:#e6ecdf;padding-left:20px}
    .guide-content{display:grid;gap:12px}
    .guide-item{display:grid;grid-template-columns:125px 1fr auto;gap:20px;align-items:center;padding:20px 22px;border:1px solid var(--line-dark);border-radius:13px;background:var(--paper);transition:var(--ease)}
    .guide-thumb{height:78px;border-radius:9px;background:linear-gradient(135deg,#293b2c,#b0c94f);display:grid;place-items:center;color:var(--lime);font-size:21px;font-weight:900}
    .guide-item h3{font-size:17px;margin:0 0 4px}
    .guide-item p{font-size:13px;color:#687269;margin:0}
    .guide-meta{font-size:11px;color:#8a938a;white-space:nowrap}
    .steps{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}
    .step{padding:25px 22px;border-radius:var(--radius);background:var(--panel);color:#fff;border:1px solid var(--line);transition:var(--ease)}
    .step-num{display:grid;place-items:center;width:35px;height:35px;border-radius:9px;background:var(--lime);color:var(--ink);font-weight:900;margin-bottom:31px}
    .step h3{font-size:18px;margin:0 0 8px}
    .step p{color:var(--muted);font-size:13px;margin:0}
    .device-band{display:grid;grid-template-columns:1fr 1fr;gap:18px;align-items:stretch}
    .device-card{padding:30px;border-radius:var(--radius);background:#fff;border:1px solid var(--line-dark)}
    .device-card.dark{background:var(--panel);border-color:var(--line);color:#fff}
    .device-card h3{margin:14px 0 8px;font-size:23px}
    .device-card p{font-size:14px;color:var(--muted-dark);margin:0 0 20px}
    .dark p{color:var(--muted)}
    .device-icon{font-size:27px;color:var(--lime-deep);font-weight:900}
    .faq-grid{display:grid;grid-template-columns:.72fr 1.28fr;gap:70px}
    .faq-intro p{color:var(--muted-dark);font-size:15px;margin-top:20px}
    .faq-list{display:grid;gap:10px}
    .faq-item{border:1px solid var(--line-dark);border-radius:12px;background:var(--paper);overflow:hidden}
    .faq-question{width:100%;border:0;background:transparent;text-align:left;padding:19px 20px;display:flex;justify-content:space-between;gap:15px;color:var(--ink);font-weight:800}
    .faq-question span:last-child{color:var(--lime-deep);font-size:22px;line-height:1}
    .faq-answer{padding:0 20px 19px;color:#687269;font-size:14px}
    .cta{padding:70px 0;background:var(--lime)}
    .cta-inner{display:flex;justify-content:space-between;align-items:center;gap:30px}
    .cta h2{font-size:clamp(27px,4vw,45px);line-height:1.18;letter-spacing:-.04em;margin:10px 0}
    .cta p{max-width:650px;margin:0;color:#47523d}
    .cta .btn{background:var(--ink);color:#fff}
    .cta .btn:hover{background:#29312b;transform:translateY(-3px)}
    .site-footer{background:var(--ink);color:#fff;padding:65px 0 25px}
    .footer-grid{display:grid;grid-template-columns:1.45fr 1fr 1fr 1.2fr;gap:35px;padding-bottom:48px}
    .footer-brand p{max-width:280px;color:var(--muted);font-size:13px;margin-top:17px}
    .footer-title{font-size:13px;color:var(--lime);font-weight:800;margin-bottom:15px}
    .footer-links{display:grid;gap:8px}
    .footer-links a{font-size:13px;color:#c4cdc3;transition:var(--ease)}
    .footer-links a:hover{color:var(--lime);padding-left:3px}
    .footer-note{color:var(--muted);font-size:13px;margin:0}
    .copyright{border-top:1px solid var(--line);padding-top:20px;display:flex;justify-content:space-between;gap:20px;color:#89938a;font-size:12px}
    @media(max-width:1024px){
      .main-nav a{padding:8px 8px;font-size:13px}
      .navbar{gap:15px}.hero-inner{gap:35px}.guide-wrap{gap:30px}
    }
    @media(max-width:768px){
      .container{width:min(100% - 36px,620px)}
      .navbar{height:70px}.menu-toggle{display:block;margin-left:auto}
      .main-nav{display:none;position:absolute;top:70px;left:0;right:0;padding:12px 18px 18px;background:var(--ink-2);border-bottom:1px solid var(--line);flex-direction:column;align-items:stretch}
      .main-nav.open{display:flex}.main-nav a{padding:12px 14px}.main-nav .nav-action{margin:6px 0 0;text-align:center}
      .hero-inner{grid-template-columns:1fr;min-height:auto;padding:70px 0 76px}.hero h1{font-size:43px}
      .preview-shell{transform:none}.section{padding:75px 0}.section-head{display:block;margin-bottom:30px}.section-intro{margin-top:15px}
      .trial-layout,.device-band,.faq-grid{grid-template-columns:1fr}.trial-side{grid-template-columns:1fr 1fr}.guide-wrap{grid-template-columns:1fr}
      .topic-list{display:flex;overflow:auto;border-left:0;border-bottom:2px solid #d4dad1;gap:10px}.topic-list a{white-space:nowrap;border-left:0;border-bottom:2px solid transparent;margin:0;padding:10px 8px}
      .topic-list a:hover,.topic-list a.active{border-left:0;border-bottom-color:var(--lime-deep);padding-left:8px}
      .steps{grid-template-columns:repeat(2,1fr)}.footer-grid{grid-template-columns:1fr 1fr}
      .cta-inner{display:block}.cta .btn{margin-top:24px}
    }
    @media(max-width:520px){
      .container{width:calc(100% - 30px)}.brand-text{font-size:15px}.hero h1{font-size:37px}
      .hero-copy{font-size:15px}.hero-buttons,.hero-buttons .btn{width:100%}.hero-notes{gap:14px}
      .preview-screen{min-height:280px;padding:18px}.game-art{height:125px}
      .trial-side,.steps{grid-template-columns:1fr}.trial-feature{min-height:390px;padding:24px}.trial-feature h3{font-size:29px}
      .guide-item{grid-template-columns:75px 1fr;gap:14px;padding:15px}.guide-meta{grid-column:2}.guide-thumb{height:65px}
      .footer-grid{grid-template-columns:1fr;gap:25px}.copyright{display:block}.copyright span{display:block;margin-top:7px}
    }

/* roulang page: category2 */
:root{
      --ink:#111412;
      --ink-2:#181d19;
      --panel:#202721;
      --panel-2:#29312b;
      --cream:#f2f0e8;
      --paper:#faf9f4;
      --muted:#aeb7ad;
      --muted-dark:#687169;
      --lime:#c8f346;
      --lime-deep:#9fca24;
      --orange:#ff795f;
      --line:rgba(222,236,218,.14);
      --line-dark:#d9ded5;
      --radius:18px;
      --radius-sm:11px;
      --shadow:0 18px 50px rgba(0,0,0,.22);
      --ease:all .25s ease;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{margin:0;font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",Arial,sans-serif;color:var(--ink);background:var(--cream);line-height:1.7;-webkit-font-smoothing:antialiased}
    a{color:inherit;text-decoration:none}
    img{display:block;max-width:100%}
    button{font:inherit;cursor:pointer}
    .container{width:min(1180px,calc(100% - 48px));margin:auto}
    .site-header{position:sticky;top:0;z-index:20;background:rgba(17,20,18,.94);border-bottom:1px solid var(--line);backdrop-filter:blur(14px)}
    .navbar{height:78px;display:flex;align-items:center;gap:34px}
    .brand{display:flex;align-items:center;gap:11px;color:#fff;font-weight:800;letter-spacing:-.04em;white-space:nowrap}
    .brand-mark{display:grid;place-items:center;width:34px;height:34px;border-radius:9px;background:var(--lime);color:var(--ink);font-size:13px;font-weight:900;box-shadow:4px 4px 0 rgba(255,121,95,.8)}
    .brand-text{font-size:17px}
    .main-nav{display:flex;align-items:center;gap:6px;margin-left:auto}
    .main-nav a{color:#c5cdc4;font-size:14px;padding:9px 13px;border-radius:9px;transition:var(--ease)}
    .main-nav a:hover,.main-nav a.active{color:var(--lime);background:rgba(200,243,70,.08)}
    .nav-action{background:var(--lime)!important;color:var(--ink)!important;font-weight:800!important;margin-left:8px}
    .nav-action:hover{background:#dcff70!important;transform:translateY(-2px)}
    .menu-toggle{display:none;background:none;border:1px solid var(--line);color:#fff;width:42px;height:38px;border-radius:9px}
    .hero{background:var(--ink);color:#fff;position:relative;overflow:hidden}
    .hero:before{content:"";position:absolute;inset:0;background-image:linear-gradient(rgba(200,243,70,.045) 1px,transparent 1px),linear-gradient(90deg,rgba(200,243,70,.045) 1px,transparent 1px);background-size:38px 38px;mask-image:linear-gradient(90deg,#000,transparent 82%)}
    .hero-inner{position:relative;display:grid;grid-template-columns:1fr 1fr;gap:70px;align-items:center;min-height:560px;padding:80px 0}
    .eyebrow,.section-kicker{display:inline-flex;align-items:center;gap:8px;color:var(--lime);font-size:12px;font-weight:800;letter-spacing:.12em}
    .eyebrow:before,.section-kicker:before{content:"";width:22px;height:2px;background:var(--lime)}
    .hero h1{font-size:clamp(38px,5vw,64px);line-height:1.12;letter-spacing:-.055em;margin:22px 0 22px;max-width:620px}
    .hero h1 span{color:var(--lime)}
    .hero-copy{font-size:17px;color:#bfc8bf;max-width:570px}
    .hero-buttons{display:flex;gap:12px;margin-top:32px;flex-wrap:wrap}
    .btn{display:inline-flex;justify-content:center;align-items:center;gap:9px;min-height:48px;padding:0 21px;border:1px solid transparent;border-radius:10px;font-size:14px;font-weight:800;transition:var(--ease)}
    .btn-primary{background:var(--lime);color:var(--ink)}
    .btn-primary:hover{background:#ddff76;transform:translateY(-3px);box-shadow:0 10px 24px rgba(200,243,70,.18)}
    .btn-secondary{border-color:rgba(255,255,255,.2);color:#fff;background:rgba(255,255,255,.04)}
    .btn-secondary:hover{border-color:var(--lime);color:var(--lime);transform:translateY(-3px)}
    .btn-orange{background:var(--orange);color:#241613}
    .btn-orange:hover{background:#ff987f;transform:translateY(-2px)}
    .btn:focus,.main-nav a:focus,.faq-question:focus,.menu-toggle:focus{outline:3px solid rgba(200,243,70,.45);outline-offset:3px}
    .hero-panel{background:#202821;border:1px solid rgba(200,243,70,.3);border-radius:22px;padding:18px;box-shadow:var(--shadow);transform:rotate(1.2deg)}
    .window-bar{height:38px;display:flex;align-items:center;gap:8px;border-bottom:1px solid var(--line);color:#aeb7ad;font-size:12px}
    .window-dot{width:9px;height:9px;border-radius:50%;background:var(--orange)}
    .window-dot:nth-child(2){background:#e3bd59}.window-dot:nth-child(3){background:var(--lime)}
    .window-title{margin-left:8px}
    .sim-screen{min-height:300px;margin-top:18px;border-radius:13px;background:linear-gradient(140deg,#4e6248,#1c241e 65%);padding:22px;position:relative;overflow:hidden}
    .sim-screen:after{content:"";position:absolute;width:190px;height:190px;border:1px solid rgba(200,243,70,.35);border-radius:50%;right:-55px;top:-45px;box-shadow:0 0 0 24px rgba(200,243,70,.05),0 0 0 48px rgba(200,243,70,.035)}
    .sim-label{color:var(--lime);font-size:11px;letter-spacing:.12em;font-weight:800}
    .sim-screen h2{font-size:31px;line-height:1.2;max-width:290px;margin:14px 0 10px}
    .sim-screen p{color:#d1d9d0;font-size:13px;max-width:280px}
    .sim-controls{display:flex;gap:10px;margin-top:38px;position:relative;z-index:1}
    .control-chip{padding:8px 12px;border:1px solid rgba(255,255,255,.18);border-radius:8px;color:#e3ebe1;font-size:12px;background:rgba(0,0,0,.15)}
    .control-chip.active{background:var(--lime);color:var(--ink);border-color:var(--lime);font-weight:800}
    .hero-notes{display:flex;gap:22px;margin-top:38px;flex-wrap:wrap}
    .hero-note{padding-left:12px;border-left:1px solid var(--lime);font-size:12px;color:#aeb8ae}
    .hero-note strong{display:block;color:#fff;font-size:14px;margin-bottom:2px}
    .section{padding:100px 0}
    .section-dark{background:var(--ink);color:#fff}
    .section-head{display:flex;justify-content:space-between;align-items:end;gap:30px;margin-bottom:42px}
    .section h2{font-size:clamp(28px,3vw,44px);line-height:1.2;letter-spacing:-.04em;margin:12px 0 0}
    .section-intro{color:var(--muted-dark);max-width:520px;font-size:15px}
    .section-dark .section-intro{color:var(--muted)}
    .overview-grid{display:grid;grid-template-columns:1.08fr .92fr;gap:18px}
    .overview-card{padding:32px;border-radius:var(--radius);background:var(--paper);border:1px solid var(--line-dark)}
    .overview-card.dark{background:var(--panel);border-color:var(--line);color:#fff}
    .overview-card h3{font-size:24px;margin:14px 0 10px}
    .overview-card p{font-size:14px;color:var(--muted-dark);margin:0}
    .dark p{color:var(--muted)}
    .icon-box{width:46px;height:46px;border-radius:13px;background:var(--ink);color:var(--lime);display:grid;place-items:center;font-weight:900}
    .dark .icon-box{background:var(--lime);color:var(--ink)}
    .feature-row{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin-top:18px}
    .feature{padding:25px;border-radius:var(--radius-sm);background:#e4e9df;border:1px solid var(--line-dark);transition:var(--ease)}
    .feature:hover{transform:translateY(-4px);border-color:var(--lime-deep);box-shadow:0 15px 30px rgba(17,20,18,.08)}
    .feature strong{display:block;font-size:17px;margin-bottom:7px}
    .feature span{display:block;color:#687169;font-size:13px}
    .interface-wrap{display:grid;grid-template-columns:.72fr 1.28fr;gap:20px;align-items:stretch}
    .side-menu{background:var(--panel);border-radius:var(--radius);padding:24px;color:#c8d0c8}
    .side-menu h3{font-size:18px;color:#fff;margin:0 0 18px}
    .side-menu a{display:flex;justify-content:space-between;padding:13px 12px;border-bottom:1px solid var(--line);font-size:14px;transition:var(--ease)}
    .side-menu a:hover,.side-menu a.active{color:var(--lime);padding-left:17px}
    .interface-card{background:#dfe7d6;border-radius:var(--radius);padding:32px;position:relative;overflow:hidden}
    .interface-card:after{content:"PG";position:absolute;right:25px;bottom:-24px;font-size:150px;font-weight:900;color:rgba(17,20,18,.07)}
    .interface-card h3{font-size:28px;max-width:460px;margin:15px 0 10px}
    .interface-card p{max-width:570px;color:#59655b;font-size:15px}
    .status-line{display:flex;gap:10px;flex-wrap:wrap;margin-top:25px;position:relative;z-index:1}
    .badge{display:inline-flex;padding:5px 10px;border-radius:7px;background:var(--ink);color:#e5ede2;font-size:11px}
    .badge.lime{background:var(--lime);color:var(--ink)}
    .badge.orange{background:var(--orange);color:#281510}
    .steps{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}
    .step{padding:25px 22px;background:var(--paper);border:1px solid var(--line-dark);border-radius:var(--radius);position:relative}
    .step-num{font-size:38px;color:var(--lime-deep);font-weight:900;line-height:1}
    .step h3{font-size:18px;margin:22px 0 8px}
    .step p{font-size:13px;color:var(--muted-dark);margin:0}
    .table-shell{overflow-x:auto;background:var(--paper);border:1px solid var(--line-dark);border-radius:var(--radius)}
    table{width:100%;border-collapse:collapse;min-width:650px}
    th,td{text-align:left;padding:17px 20px;border-bottom:1px solid var(--line-dark);font-size:14px}
    th{background:#e2e8dc;color:#4d594f;font-size:12px;letter-spacing:.04em}
    tr:last-child td{border-bottom:0}
    .faq-grid{display:grid;grid-template-columns:.7fr 1.3fr;gap:70px}
    .faq-list{display:grid;gap:10px}
    .faq-item{border:1px solid var(--line-dark);border-radius:var(--radius-sm);background:var(--paper);overflow:hidden}
    .faq-question{width:100%;border:0;background:none;text-align:left;padding:19px 22px;font-weight:800;color:var(--ink);display:flex;justify-content:space-between;align-items:center}
    .faq-question span:last-child{color:var(--lime-deep);font-size:22px}
    .faq-answer{padding:0 22px 19px;color:var(--muted-dark);font-size:14px}
    .cta{background:var(--panel);color:#fff;border-radius:24px;padding:45px 52px;display:flex;align-items:center;justify-content:space-between;gap:30px;position:relative;overflow:hidden}
    .cta:after{content:"";position:absolute;right:-35px;top:-75px;width:220px;height:220px;border:1px solid rgba(200,243,70,.3);border-radius:50%;box-shadow:0 0 0 28px rgba(200,243,70,.05),0 0 0 56px rgba(200,243,70,.04)}
    .cta h2{margin:0 0 8px;font-size:30px;position:relative;z-index:1}
    .cta p{margin:0;color:var(--muted);font-size:14px;position:relative;z-index:1}
    .cta .btn{position:relative;z-index:1;white-space:nowrap}
    .site-footer{background:var(--ink);color:#fff;padding:64px 0 25px}
    .footer-grid{display:grid;grid-template-columns:1.4fr .8fr .9fr 1fr;gap:35px;padding-bottom:45px}
    .footer-brand p,.footer-note{color:var(--muted);font-size:13px;max-width:280px}
    .footer-title{font-size:13px;color:var(--lime);font-weight:800;margin-bottom:15px}
    .footer-links{display:grid;gap:8px;color:#bdc7bd;font-size:13px}
    .footer-links a{transition:var(--ease)}
    .footer-links a:hover{color:var(--lime);padding-left:3px}
    .copyright{border-top:1px solid var(--line);padding-top:20px;color:#89948a;font-size:12px;display:flex;justify-content:space-between;gap:15px;flex-wrap:wrap}
    @media(max-width:1024px){
      .main-nav a{padding:8px 8px;font-size:13px}
      .hero-inner{gap:35px}
      .footer-grid{grid-template-columns:1fr 1fr}
    }
    @media(max-width:768px){
      .container{width:min(100% - 32px,620px)}
      .navbar{height:68px;justify-content:space-between}
      .menu-toggle{display:block}
      .main-nav{display:none;position:absolute;top:68px;left:0;right:0;background:var(--ink-2);padding:14px 16px 20px;border-bottom:1px solid var(--line);flex-direction:column;align-items:stretch;gap:3px}
      .main-nav.open{display:flex}
      .main-nav a{padding:12px 14px}
      .nav-action{margin:7px 0 0;text-align:center}
      .hero-inner{grid-template-columns:1fr;min-height:auto;padding:65px 0 72px}
      .hero h1{font-size:42px}
      .hero-panel{transform:none}
      .section{padding:72px 0}
      .section-head{display:block;margin-bottom:28px}
      .section-intro{margin-top:15px}
      .overview-grid,.interface-wrap,.faq-grid{grid-template-columns:1fr;gap:16px}
      .feature-row,.steps{grid-template-columns:1fr 1fr}
      .faq-grid{gap:30px}
      .cta{display:block;padding:34px 26px}
      .cta .btn{margin-top:25px;width:100%}
    }
    @media(max-width:520px){
      .brand-text{font-size:15px}
      .hero h1{font-size:35px}
      .hero-copy{font-size:15px}
      .hero-buttons .btn{width:100%}
      .hero-notes{gap:14px}
      .feature-row,.steps{grid-template-columns:1fr}
      .overview-card,.interface-card{padding:24px}
      .sim-screen{min-height:270px}
      .footer-grid{grid-template-columns:1fr;gap:25px}
      .copyright{display:block}
      .copyright span{display:block;margin-top:6px}
    }

/* roulang page: category3 */
:root{
      --ink:#111412;
      --ink-2:#181d19;
      --panel:#202721;
      --panel-2:#29312b;
      --cream:#f2f0e8;
      --paper:#faf9f4;
      --muted:#aeb7ad;
      --muted-dark:#687169;
      --lime:#c8f346;
      --lime-deep:#9fca24;
      --orange:#ff795f;
      --line:rgba(222,236,218,.14);
      --line-dark:#d9ded5;
      --radius:18px;
      --radius-sm:11px;
      --shadow:0 18px 50px rgba(0,0,0,.22);
      --ease:all .25s ease;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{margin:0;font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",Arial,sans-serif;color:var(--ink);background:var(--cream);line-height:1.7;-webkit-font-smoothing:antialiased}
    a{color:inherit;text-decoration:none}
    img{display:block;max-width:100%}
    button,input{font:inherit}
    button{cursor:pointer}
    .container{width:min(1180px,calc(100% - 48px));margin:auto}
    .site-header{position:sticky;top:0;z-index:20;background:rgba(17,20,18,.95);border-bottom:1px solid var(--line);backdrop-filter:blur(14px)}
    .navbar{height:78px;display:flex;align-items:center;gap:34px}
    .brand{display:flex;align-items:center;gap:11px;color:#fff;font-weight:800;letter-spacing:-.04em;white-space:nowrap}
    .brand-mark{display:grid;place-items:center;width:34px;height:34px;border-radius:9px;background:var(--lime);color:var(--ink);font-size:13px;font-weight:900;box-shadow:4px 4px 0 rgba(255,121,95,.8)}
    .brand-text{font-size:17px}
    .main-nav{display:flex;align-items:center;gap:6px;margin-left:auto}
    .main-nav a{color:#c5cdc4;font-size:14px;padding:9px 13px;border-radius:9px;transition:var(--ease)}
    .main-nav a:hover,.main-nav a.active{color:var(--lime);background:rgba(200,243,70,.08)}
    .main-nav .nav-action{background:var(--lime);color:var(--ink);font-weight:800;margin-left:8px}
    .main-nav .nav-action:hover{background:#ddff76;color:var(--ink)}
    .menu-toggle{display:none;background:none;border:1px solid var(--line);color:#fff;width:42px;height:38px;border-radius:9px}
    .hero{background:var(--ink);color:#fff;position:relative;overflow:hidden}
    .hero:before{content:"";position:absolute;inset:0;background-image:linear-gradient(rgba(200,243,70,.045) 1px,transparent 1px),linear-gradient(90deg,rgba(200,243,70,.045) 1px,transparent 1px);background-size:38px 38px;mask-image:linear-gradient(90deg,#000,transparent 80%)}
    .hero-inner{position:relative;display:grid;grid-template-columns:1.08fr .92fr;gap:70px;align-items:center;min-height:570px;padding:78px 0}
    .eyebrow,.section-kicker{display:inline-flex;align-items:center;gap:8px;color:var(--lime);font-size:12px;font-weight:800;letter-spacing:.12em}
    .eyebrow:before,.section-kicker:before{content:"";width:22px;height:2px;background:var(--lime)}
    .hero h1{font-size:clamp(38px,5vw,64px);line-height:1.12;letter-spacing:-.055em;max-width:680px;margin:21px 0}
    .hero h1 span{color:var(--lime)}
    .hero-copy{font-size:17px;color:#bfc8bf;max-width:620px}
    .hero-buttons{display:flex;gap:12px;margin-top:32px;flex-wrap:wrap}
    .btn{display:inline-flex;justify-content:center;align-items:center;gap:9px;min-height:48px;padding:0 21px;border:1px solid transparent;border-radius:10px;font-size:14px;font-weight:800;transition:var(--ease)}
    .btn-primary{background:var(--lime);color:var(--ink)}
    .btn-primary:hover{background:#ddff76;transform:translateY(-3px);box-shadow:0 10px 24px rgba(200,243,70,.18)}
    .btn-secondary{border-color:rgba(255,255,255,.2);color:#fff;background:rgba(255,255,255,.04)}
    .btn-secondary:hover{border-color:var(--lime);color:var(--lime);transform:translateY(-3px)}
    .btn-orange{background:var(--orange);color:#241613}
    .btn-orange:hover{background:#ff987f;transform:translateY(-2px)}
    .btn:focus,.main-nav a:focus,.faq-question:focus,.menu-toggle:focus{outline:3px solid rgba(200,243,70,.45);outline-offset:3px}
    .hero-notes{display:flex;gap:22px;margin-top:38px;flex-wrap:wrap}
    .hero-note{padding-left:12px;border-left:1px solid var(--lime);font-size:12px;color:#aeb8ae}
    .hero-note strong{display:block;color:#fff;font-size:14px;margin-bottom:2px}
    .app-preview{position:relative;min-height:390px;border:1px solid rgba(255,255,255,.18);border-radius:24px;padding:18px;background:#202821;box-shadow:var(--shadow);transform:rotate(2deg)}
    .preview-top{display:flex;justify-content:space-between;align-items:center;border-bottom:1px solid var(--line);padding:7px 5px 15px;color:#dce5da;font-size:12px}
    .preview-dots{display:flex;gap:6px}.preview-dots i{width:9px;height:9px;border-radius:50%;background:var(--orange)}.preview-dots i:last-child{background:var(--lime)}
    .preview-screen{margin-top:18px;min-height:245px;border-radius:15px;padding:22px;background:linear-gradient(145deg,#64785c,#263127 58%,#101511);position:relative;overflow:hidden}
    .preview-screen:after{content:"PG";position:absolute;right:18px;bottom:-30px;font-size:170px;font-weight:900;color:rgba(200,243,70,.11)}
    .preview-screen h3{font-size:26px;line-height:1.2;max-width:230px;margin:28px 0 9px}.preview-screen p{color:#d7e0d3;font-size:13px;max-width:250px}
    .preview-status{display:inline-flex;padding:5px 9px;border-radius:6px;background:var(--lime);color:var(--ink);font-size:11px;font-weight:800}
    .preview-bottom{display:grid;grid-template-columns:repeat(3,1fr);gap:9px;margin-top:15px}
    .preview-item{background:#29332c;border-radius:9px;padding:12px;color:#aeb8ae;font-size:11px}.preview-item strong{display:block;color:#fff;font-size:14px}
    .section{padding:100px 0}.section-dark{background:var(--ink);color:#fff}
    .section-head{display:flex;justify-content:space-between;align-items:end;gap:30px;margin-bottom:42px}
    .section h2{font-size:clamp(28px,3vw,44px);line-height:1.2;letter-spacing:-.04em;margin:12px 0 0}
    .section-intro{color:var(--muted-dark);max-width:520px;font-size:15px}
    .section-dark .section-intro{color:var(--muted)}
    .download-layout{display:grid;grid-template-columns:.85fr 1.15fr;gap:18px;align-items:stretch}
    .device-card{background:#dfe7d6;border-radius:var(--radius);padding:34px;min-height:360px;position:relative;overflow:hidden}
    .device-card:after{content:"APP";position:absolute;right:-15px;bottom:-50px;font-size:150px;font-weight:900;color:rgba(17,20,18,.08)}
    .device-icon{width:58px;height:58px;border-radius:16px;background:var(--ink);color:var(--lime);display:grid;place-items:center;font-weight:900;font-size:20px;margin-bottom:90px}
    .device-card h3{font-size:28px;line-height:1.25;margin:0 0 10px}.device-card p{color:#5d695e;font-size:14px;max-width:300px}
    .install-panel{background:var(--panel);color:#fff;border-radius:var(--radius);padding:34px;border:1px solid var(--line)}
    .panel-heading{display:flex;justify-content:space-between;gap:20px;align-items:start;border-bottom:1px solid var(--line);padding-bottom:22px;margin-bottom:24px}
    .panel-heading h3{font-size:25px;margin:0}.version{color:var(--lime);font-size:12px;font-weight:800}
    .steps{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin-bottom:28px}
    .step{border:1px solid var(--line);border-radius:12px;padding:17px;background:rgba(255,255,255,.025)}
    .step-number{display:grid;place-items:center;width:28px;height:28px;border-radius:8px;background:var(--orange);color:var(--ink);font-weight:900;font-size:13px;margin-bottom:16px}
    .step h4{font-size:15px;margin:0 0 7px}.step p{color:var(--muted);font-size:12px;margin:0}
    .download-actions{display:flex;align-items:center;gap:18px;flex-wrap:wrap}.download-tip{color:var(--muted);font-size:12px}
    .section-light{background:var(--paper)}
    .info-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px}
    .info-card{background:var(--cream);border:1px solid var(--line-dark);border-radius:var(--radius);padding:28px;transition:var(--ease)}
    .info-card:hover{transform:translateY(-4px);border-color:var(--lime-deep);box-shadow:0 14px 28px rgba(17,20,18,.08)}
    .info-card h3{font-size:21px;margin:0 0 10px}.info-card p{font-size:14px;color:#657066;margin:0 0 20px}.info-card ul{list-style:none;padding:0;margin:0;display:grid;gap:9px}
    .info-card li{font-size:13px;color:#4f5b51;padding-left:18px;position:relative}.info-card li:before{content:"";width:7px;height:7px;background:var(--lime-deep);border-radius:50%;position:absolute;left:0;top:9px}
    .badge{display:inline-flex;padding:4px 9px;border-radius:6px;background:var(--ink);color:var(--lime);font-size:11px;font-weight:800;margin-bottom:18px}
    .compatibility{display:grid;grid-template-columns:1.2fr .8fr;gap:16px;margin-top:16px}
    .compat-box{border-radius:var(--radius);padding:30px;background:var(--ink);color:#fff}.compat-box h3{font-size:25px;margin:0 0 10px}.compat-box p{font-size:14px;color:var(--muted);margin:0}
    .device-list{display:grid;gap:10px}.device-row{display:flex;justify-content:space-between;gap:15px;padding:14px 16px;border-radius:10px;background:#29312b;color:#d8e0d6;font-size:13px}.device-row span:last-child{color:var(--lime);font-weight:800}
    .faq-layout{display:grid;grid-template-columns:.7fr 1.3fr;gap:70px}.faq-layout h2{max-width:330px}.faq-list{border-top:1px solid var(--line-dark)}
    .faq-item{border-bottom:1px solid var(--line-dark)}.faq-question{width:100%;display:flex;justify-content:space-between;gap:20px;background:none;border:0;text-align:left;padding:21px 0;color:var(--ink);font-weight:800}.faq-question span{color:var(--lime-deep);font-size:22px;line-height:1}.faq-answer{padding:0 35px 20px 0;color:var(--muted-dark);font-size:14px}
    .cta{background:var(--orange);padding:54px 0}.cta-inner{display:flex;align-items:center;justify-content:space-between;gap:30px}.cta h2{font-size:clamp(27px,3vw,40px);line-height:1.2;margin:0 0 8px}.cta p{margin:0;color:#55332c;font-size:14px}.cta .btn{background:var(--ink);color:#fff}.cta .btn:hover{background:#29312b;transform:translateY(-3px)}
    .site-footer{background:var(--ink);color:#fff;padding:66px 0 24px}.footer-grid{display:grid;grid-template-columns:1.5fr .8fr .9fr 1.1fr;gap:35px;padding-bottom:46px}.footer-brand p{color:var(--muted);font-size:13px;max-width:280px;margin-top:18px}.footer-title{font-size:13px;color:var(--lime);font-weight:800;margin-bottom:16px}.footer-links{display:grid;gap:9px}.footer-links a{color:#bbc5bb;font-size:13px;transition:var(--ease)}.footer-links a:hover{color:var(--lime);padding-left:4px}.footer-note{color:var(--muted);font-size:13px;margin:0}.copyright{border-top:1px solid var(--line);padding-top:20px;display:flex;justify-content:space-between;gap:20px;color:#7f897f;font-size:12px}
    @media(max-width:1024px){.navbar{gap:18px}.main-nav a{padding:8px 8px;font-size:13px}.hero-inner{gap:35px}.footer-grid{grid-template-columns:1.2fr 1fr 1fr}.footer-grid>div:last-child{grid-column:span 3}}
    @media(max-width:768px){.container{width:min(100% - 36px,620px)}.navbar{height:70px}.menu-toggle{display:block;margin-left:auto}.main-nav{display:none;position:absolute;left:18px;right:18px;top:78px;background:var(--ink-2);padding:12px;border:1px solid var(--line);border-radius:14px;flex-direction:column;align-items:stretch;box-shadow:var(--shadow)}.main-nav.open{display:flex}.main-nav a{padding:12px 14px}.main-nav .nav-action{margin:5px 0 0;text-align:center}.hero-inner{grid-template-columns:1fr;min-height:0;padding:70px 0}.hero h1{font-size:43px}.app-preview{transform:none;max-width:560px;margin:auto}.section{padding:72px 0}.section-head,.cta-inner{display:block}.section-head .section-intro{margin-top:18px}.download-layout,.compatibility,.faq-layout{grid-template-columns:1fr;gap:16px}.device-card{min-height:280px}.device-icon{margin-bottom:60px}.steps{grid-template-columns:1fr}.info-grid{grid-template-columns:1fr}.faq-layout{gap:30px}.footer-grid{grid-template-columns:1fr 1fr;gap:28px}.footer-grid>div:last-child{grid-column:span 2}.cta .btn{margin-top:24px;width:100%}}
    @media(max-width:520px){.container{width:calc(100% - 28px)}.brand-text{font-size:15px}.hero h1{font-size:36px}.hero-copy{font-size:15px}.hero-buttons,.hero-buttons .btn{width:100%}.hero-buttons .btn{min-height:52px}.hero-notes{gap:14px}.app-preview{padding:12px}.preview-screen{min-height:220px}.section h2{font-size:31px}.install-panel,.device-card,.info-card,.compat-box{padding:24px}.panel-heading{display:block}.version{display:block;margin-top:8px}.download-actions,.download-actions .btn{width:100%}.copyright{display:block}.copyright span{display:block;margin-top:7px}.footer-grid{grid-template-columns:1fr}.footer-grid>div:last-child{grid-column:auto}}

/* roulang page: category4 */
:root{
      --ink:#111412;
      --ink-2:#181d19;
      --panel:#202721;
      --panel-2:#29312b;
      --cream:#f2f0e8;
      --paper:#faf9f4;
      --muted:#aeb7ad;
      --muted-dark:#687169;
      --lime:#c8f346;
      --lime-deep:#9fca24;
      --orange:#ff795f;
      --line:rgba(222,236,218,.14);
      --line-dark:#d9ded5;
      --radius:18px;
      --radius-sm:11px;
      --shadow:0 18px 50px rgba(0,0,0,.22);
      --ease:all .25s ease;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{margin:0;font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",Arial,sans-serif;color:var(--ink);background:var(--cream);line-height:1.7;-webkit-font-smoothing:antialiased}
    a{color:inherit;text-decoration:none}
    img{display:block;max-width:100%}
    button,input{font:inherit}
    button{cursor:pointer}
    .container{width:min(1180px,calc(100% - 48px));margin:auto}
    .site-header{position:sticky;top:0;z-index:20;background:rgba(17,20,18,.95);border-bottom:1px solid var(--line);backdrop-filter:blur(14px)}
    .navbar{height:78px;display:flex;align-items:center;gap:34px}
    .brand{display:flex;align-items:center;gap:11px;color:#fff;font-weight:800;letter-spacing:-.04em;white-space:nowrap}
    .brand-mark{display:grid;place-items:center;width:34px;height:34px;border-radius:9px;background:var(--lime);color:var(--ink);font-size:13px;font-weight:900;box-shadow:4px 4px 0 rgba(255,121,95,.8)}
    .brand-text{font-size:17px}
    .main-nav{display:flex;align-items:center;gap:6px;margin-left:auto}
    .main-nav a{color:#c5cdc4;font-size:14px;padding:9px 13px;border-radius:9px;transition:var(--ease)}
    .main-nav a:hover,.main-nav a.active{color:var(--lime);background:rgba(200,243,70,.08)}
    .nav-action{background:var(--lime)!important;color:var(--ink)!important;font-weight:800!important;margin-left:8px}
    .nav-action:hover{background:#dcff70!important;transform:translateY(-2px)}
    .menu-toggle{display:none;background:none;border:1px solid var(--line);color:#fff;width:42px;height:38px;border-radius:9px}
    .hero{background:var(--ink);color:#fff;overflow:hidden;position:relative}
    .hero:before{content:"";position:absolute;inset:0;background-image:linear-gradient(rgba(200,243,70,.045) 1px,transparent 1px),linear-gradient(90deg,rgba(200,243,70,.045) 1px,transparent 1px);background-size:38px 38px;mask-image:linear-gradient(90deg,#000,transparent 82%)}
    .hero-inner{position:relative;display:grid;grid-template-columns:1.08fr .92fr;gap:70px;align-items:center;min-height:520px;padding:76px 0}
    .eyebrow,.section-kicker{display:inline-flex;align-items:center;gap:8px;color:var(--lime);font-size:12px;font-weight:800;letter-spacing:.12em}
    .eyebrow:before,.section-kicker:before{content:"";width:22px;height:2px;background:var(--lime)}
    .hero h1{font-size:clamp(36px,5vw,64px);line-height:1.12;letter-spacing:-.055em;max-width:700px;margin:22px 0}
    .hero h1 span{color:var(--lime)}
    .hero-copy{font-size:17px;color:#bfc8bf;max-width:620px}
    .hero-buttons{display:flex;gap:12px;margin-top:31px;flex-wrap:wrap}
    .btn{display:inline-flex;justify-content:center;align-items:center;gap:9px;min-height:48px;padding:0 21px;border:1px solid transparent;border-radius:10px;font-size:14px;font-weight:800;transition:var(--ease)}
    .btn-primary{background:var(--lime);color:var(--ink)}
    .btn-primary:hover{background:#ddff76;transform:translateY(-3px);box-shadow:0 10px 24px rgba(200,243,70,.18)}
    .btn-secondary{border-color:rgba(255,255,255,.2);color:#fff;background:rgba(255,255,255,.04)}
    .btn-secondary:hover{border-color:var(--lime);color:var(--lime);transform:translateY(-3px)}
    .btn-orange{background:var(--orange);color:#241613}
    .btn-orange:hover{background:#ff987f;transform:translateY(-2px)}
    .btn:focus,.main-nav a:focus,.faq-question:focus,.menu-toggle:focus{outline:3px solid rgba(200,243,70,.45);outline-offset:3px}
    .hero-panel{background:#202721;border:1px solid rgba(255,255,255,.16);border-radius:var(--radius);padding:22px;box-shadow:var(--shadow);transform:rotate(1.5deg)}
    .panel-top{display:flex;align-items:center;border-bottom:1px solid var(--line);padding-bottom:17px;margin-bottom:20px}
    .control-buttons{display:flex;gap:7px}
    .control-buttons i{width:11px;height:11px;border-radius:50%;background:var(--orange);display:block}
    .control-buttons i:last-child{background:var(--lime)}
    .window-title{margin-left:auto;color:#8d998f;font-size:12px}
    .screen{height:235px;border-radius:13px;background:linear-gradient(145deg,#607456,#1c241f 70%);padding:20px;position:relative;overflow:hidden}
    .screen:before{content:"";position:absolute;inset:0;background:radial-gradient(circle at 75% 25%,rgba(200,243,70,.55),transparent 20%),linear-gradient(130deg,transparent 45%,rgba(255,121,95,.35))}
    .screen-content{position:relative;height:100%;display:flex;flex-direction:column;justify-content:space-between}
    .screen h2{font-size:27px;line-height:1.2;margin:0;color:#fff}
    .screen-label{font-size:11px;color:#e4eadf;letter-spacing:.08em}
    .screen-bottom{display:flex;justify-content:space-between;align-items:end}
    .screen-status{font-size:12px;color:var(--lime)}
    .screen-button{background:var(--lime);color:var(--ink);border-radius:7px;padding:6px 10px;font-size:11px;font-weight:800}
    .panel-meta{display:grid;grid-template-columns:repeat(3,1fr);gap:10px;margin-top:16px}
    .meta-box{background:#29312b;border-radius:9px;padding:10px;color:#aeb7ad;font-size:11px}
    .meta-box strong{display:block;color:#fff;font-size:13px;margin-top:2px}
    .section{padding:94px 0}
    .section-dark{background:var(--ink);color:#fff}
    .section-head{display:flex;justify-content:space-between;align-items:end;gap:30px;margin-bottom:38px}
    .section h2{font-size:clamp(28px,3vw,44px);line-height:1.2;letter-spacing:-.04em;margin:12px 0 0}
    .section-intro{color:var(--muted-dark);max-width:530px;font-size:15px}
    .section-dark .section-intro{color:var(--muted)}
    .topic-bar{display:flex;gap:10px;flex-wrap:wrap;margin-bottom:28px}
    .topic-bar a{padding:9px 16px;border:1px solid var(--line-dark);border-radius:30px;color:var(--muted-dark);font-size:13px;transition:var(--ease)}
    .topic-bar a:hover,.topic-bar a.active{background:var(--lime);border-color:var(--lime);color:var(--ink);font-weight:800}
    .news-layout{display:grid;grid-template-columns:1.13fr .87fr;gap:18px}
    .feature-news{min-height:390px;padding:34px;border-radius:var(--radius);background:var(--panel);color:#fff;position:relative;overflow:hidden;display:flex;align-items:end;border:1px solid var(--line);transition:var(--ease)}
    .feature-news:before{content:"";position:absolute;inset:0;background:linear-gradient(140deg,#596f50,#222c25 55%,#151916)}
    .feature-news:after{content:"PG / NEWS";position:absolute;right:25px;top:27px;color:rgba(200,243,70,.55);font-size:13px;font-weight:900;letter-spacing:.15em}
    .feature-news:hover{transform:translateY(-4px);box-shadow:var(--shadow)}
    .news-content{position:relative;max-width:520px}
    .badge{display:inline-flex;padding:4px 9px;border-radius:6px;background:rgba(255,255,255,.12);color:#d8e1d5;font-size:11px}
    .badge.lime{background:var(--lime);color:var(--ink)}
    .badge.orange{background:var(--orange);color:#281510}
    .news-content h3{font-size:30px;line-height:1.25;margin:15px 0 10px}
    .news-content p{color:#d5ddd4;font-size:14px;margin-bottom:15px}
    .news-date{color:#aeb7ad;font-size:12px}
    .news-list{display:flex;flex-direction:column;gap:12px}
    .news-item{display:grid;grid-template-columns:54px 1fr;gap:15px;padding:19px;background:var(--paper);border:1px solid var(--line-dark);border-radius:var(--radius-sm);transition:var(--ease)}
    .news-item:hover{transform:translateX(4px);border-color:var(--lime-deep);box-shadow:0 12px 25px rgba(17,20,18,.07)}
    .news-index{font-size:24px;font-weight:900;color:#c3cbbf}
    .news-item h3{font-size:16px;line-height:1.35;margin:0 0 5px}
    .news-item p{font-size:13px;color:var(--muted-dark);margin:0 0 6px}
    .news-item small{color:#8b958b;font-size:11px}
    .update-strip{display:grid;grid-template-columns:1fr 1fr 1fr;gap:1px;background:var(--line);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden}
    .update-box{padding:26px;background:var(--panel);color:#fff}
    .update-box strong{display:block;color:var(--lime);font-size:27px;line-height:1.2;margin:7px 0}
    .update-box span{font-size:13px;color:var(--muted)}
    .guide-grid{display:grid;grid-template-columns:.85fr 1.15fr;gap:50px;align-items:start}
    .guide-copy h2{margin-bottom:17px}
    .guide-copy p{color:var(--muted-dark);max-width:480px}
    .guide-list{border-top:1px solid var(--line-dark)}
    .guide-item{display:flex;gap:20px;padding:20px 0;border-bottom:1px solid var(--line-dark)}
    .guide-num{width:35px;height:35px;display:grid;place-items:center;border-radius:10px;background:var(--ink);color:var(--lime);font-weight:900;flex:none}
    .guide-item h3{font-size:17px;margin:0 0 4px}
    .guide-item p{font-size:13px;color:var(--muted-dark);margin:0}
    .faq-grid{display:grid;grid-template-columns:.7fr 1.3fr;gap:70px}
    .faq-intro p{color:var(--muted);font-size:14px;margin-top:18px}
    .faq-list{border-top:1px solid var(--line)}
    .faq-item{border-bottom:1px solid var(--line)}
    .faq-question{width:100%;padding:20px 0;background:none;border:0;color:#fff;text-align:left;display:flex;justify-content:space-between;align-items:center;font-size:16px;font-weight:700}
    .faq-question span:last-child{color:var(--lime);font-size:24px;font-weight:400;transition:var(--ease)}
    .faq-answer{display:none;color:var(--muted);font-size:14px;padding:0 35px 20px 0}
    .faq-item.open .faq-answer{display:block}
    .faq-item.open .faq-question span:last-child{transform:rotate(45deg)}
    .cta{padding:72px 0;background:#dfe7d6}
    .cta-box{display:flex;align-items:center;justify-content:space-between;gap:30px}
    .cta h2{font-size:clamp(27px,3vw,40px);line-height:1.2;margin:0 0 10px;letter-spacing:-.04em}
    .cta p{color:#5f6a61;margin:0;max-width:650px}
    .site-footer{background:var(--ink);color:#fff;padding:62px 0 24px}
    .footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:34px;padding-bottom:45px}
    .footer-brand p,.footer-note{color:var(--muted);font-size:13px;max-width:270px;margin-top:17px}
    .footer-title{font-size:13px;color:var(--lime);font-weight:800;margin-bottom:15px}
    .footer-links{display:flex;flex-direction:column;gap:8px}
    .footer-links a{color:#c5cdc4;font-size:13px;transition:var(--ease)}
    .footer-links a:hover{color:var(--lime);padding-left:3px}
    .copyright{border-top:1px solid var(--line);padding-top:20px;color:#849087;font-size:12px;display:flex;justify-content:space-between;gap:20px;flex-wrap:wrap}
    @media(max-width:1024px){
      .main-nav a{padding-left:8px;padding-right:8px;font-size:13px}
      .navbar{gap:15px}
      .hero-inner{gap:35px}
      .footer-grid{grid-template-columns:1.3fr 1fr 1fr}
      .footer-grid>div:last-child{grid-column:span 3}
    }
    @media(max-width:768px){
      .container{width:min(100% - 34px,620px)}
      .navbar{height:70px}
      .menu-toggle{display:block;margin-left:auto}
      .main-nav{display:none;position:absolute;top:70px;left:0;right:0;padding:14px 17px 20px;background:var(--ink-2);border-bottom:1px solid var(--line);flex-direction:column;align-items:stretch}
      .main-nav.show{display:flex}
      .main-nav a{padding:12px 14px}
      .nav-action{margin:5px 0 0;text-align:center}
      .hero-inner,.news-layout,.guide-grid,.faq-grid{grid-template-columns:1fr}
      .hero-inner{padding:62px 0;min-height:0}
      .hero-panel{transform:none;margin-top:8px}
      .section{padding:70px 0}
      .section-head{display:block;margin-bottom:28px}
      .section-intro{margin-top:15px}
      .update-strip{grid-template-columns:1fr}
      .cta-box{display:block}
      .cta .btn{margin-top:22px;width:100%}
      .footer-grid{grid-template-columns:1fr 1fr}
      .footer-grid>div:last-child{grid-column:span 2}
    }
    @media(max-width:520px){
      .container{width:calc(100% - 28px)}
      .brand-text{font-size:15px}
      .hero h1{font-size:38px}
      .hero-buttons{display:grid;grid-template-columns:1fr}
      .hero-buttons .btn{width:100%}
      .screen{height:210px}
      .feature-news{min-height:360px;padding:25px}
      .news-content h3{font-size:25px}
      .panel-meta{grid-template-columns:1fr}
      .panel-meta .meta-box:not(:first-child){display:none}
      .footer-grid{grid-template-columns:1fr}
      .footer-grid>div:last-child{grid-column:auto}
      .copyright{display:block}
      .copyright span{display:block;margin-bottom:5px}
    }

/* 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}