/* roulang page: index */
:root{
  --ink:#17191c;
  --deep:#202326;
  --panel:#292d30;
  --panel-2:#32373a;
  --paper:#f3f0e8;
  --cream:#fffdf7;
  --muted:#aeb2af;
  --line:rgba(255,255,255,.13);
  --line-dark:rgba(23,25,28,.14);
  --coral:#ff735d;
  --coral-dark:#db5545;
  --lime:#d9f45b;
  --mint:#9fe0c0;
  --radius:18px;
  --shadow:0 16px 34px rgba(0,0,0,.16);
  --container:1220px;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{background:var(--ink);color:var(--cream);font-family:"Noto Sans SC","PingFang SC","Microsoft YaHei",Arial,sans-serif;font-size:16px;line-height:1.75}
a{color:inherit;text-decoration:none}
img{display:block;max-width:100%}
button,input{font:inherit}
button{cursor:pointer}
button:disabled{cursor:not-allowed;opacity:.48}
:focus-visible{outline:3px solid var(--lime);outline-offset:3px}
.container{width:min(var(--container),calc(100% - 48px));margin:0 auto}
.site-header{position:sticky;top:0;z-index:30;background:rgba(23,25,28,.94);border-bottom:1px solid var(--line);backdrop-filter:blur(14px)}
.header-inner{height:82px;display:flex;align-items:center;gap:28px}
.logo{display:flex;align-items:center;gap:12px;min-width:310px}
.logo-mark{width:38px;height:38px;background:var(--coral);border-radius:11px 11px 11px 4px;position:relative;flex:none}
.logo-mark:before,.logo-mark:after{content:"";position:absolute;border-radius:50%;background:var(--lime)}
.logo-mark:before{width:8px;height:8px;left:9px;top:9px}
.logo-mark:after{width:8px;height:8px;right:8px;bottom:8px}
.logo-text{font-size:15px;font-weight:800;line-height:1.28;letter-spacing:-.02em}
.logo-text small{display:block;color:var(--mint);font-size:10px;font-family:monospace;letter-spacing:.14em;margin-top:4px}
.main-nav{display:flex;align-items:center;gap:4px;flex:1}
.main-nav a{padding:9px 11px;color:#c9cdca;font-size:14px;border-radius:9px;transition:.22s}
.main-nav a:hover,.main-nav a.active{color:var(--ink);background:var(--lime)}
.header-tools{display:flex;align-items:center;gap:9px}
.search-toggle,.menu-toggle{border:1px solid var(--line);background:transparent;color:var(--cream);height:40px;border-radius:10px;padding:0 13px;transition:.2s}
.search-toggle:hover,.menu-toggle:hover{border-color:var(--lime);color:var(--lime)}
.download-btn,.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border:0;border-radius:11px;padding:12px 19px;font-weight:800;transition:.2s}
.download-btn,.btn-primary{background:var(--coral);color:#fff}
.download-btn:hover,.btn-primary:hover{background:var(--coral-dark);transform:translateY(-2px)}
.btn-outline{border:1px solid rgba(255,255,255,.28);color:var(--cream);background:transparent}
.btn-outline:hover{border-color:var(--lime);color:var(--lime);transform:translateY(-2px)}
.menu-toggle{display:none}
.search-panel{display:none;background:var(--panel);border-bottom:1px solid var(--line);padding:18px 0}
.search-panel.open{display:block}
.search-form{display:flex;max-width:620px;margin-left:auto;gap:10px}
.search-form input{flex:1;background:var(--ink);border:1px solid var(--line);color:#fff;border-radius:10px;padding:11px 15px}
.hero{position:relative;overflow:hidden;padding:88px 0 72px;background:
 linear-gradient(90deg,rgba(32,35,38,.98) 0%,rgba(32,35,38,.94) 54%,rgba(32,35,38,.78) 100%),
 repeating-linear-gradient(0deg,transparent 0 31px,rgba(255,255,255,.025) 32px),
 repeating-linear-gradient(90deg,transparent 0 31px,rgba(255,255,255,.025) 32px)}
.hero:after{content:"";position:absolute;width:300px;height:300px;border:1px solid rgba(217,244,91,.2);right:-95px;top:50px;transform:rotate(25deg);border-radius:40px}
.hero-grid{display:grid;grid-template-columns:1.08fr .92fr;gap:70px;align-items:center;position:relative;z-index:1}
.eyebrow,.section-kicker{color:var(--lime);font:700 12px/1.2 monospace;letter-spacing:.13em;text-transform:uppercase}
.hero h1{font-size:clamp(34px,4.2vw,62px);line-height:1.16;letter-spacing:-.055em;max-width:720px;margin:20px 0 22px}
.hero-copy{font-size:18px;color:#c8ccca;max-width:650px}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin:31px 0 34px}
.hero-facts{display:flex;flex-wrap:wrap;gap:26px;border-top:1px solid var(--line);padding-top:20px}
.fact{display:flex;gap:9px;align-items:center;color:#c7cbc8;font-size:13px}
.fact i{width:9px;height:9px;border-radius:50%;background:var(--coral);display:block}
.fact:nth-child(2) i{background:var(--lime)}.fact:nth-child(3) i{background:var(--mint)}
.arcade-board{background:#141618;border:1px solid rgba(255,255,255,.16);border-radius:24px;padding:19px;box-shadow:var(--shadow);transform:rotate(2deg)}
.board-top{display:flex;justify-content:space-between;align-items:center;color:var(--muted);font:12px monospace;margin-bottom:14px}
.status{color:var(--mint);font-size:11px}
.screen{min-height:285px;border-radius:15px;background:linear-gradient(145deg,#4a3430,#272d2d 58%,#394832);padding:24px;position:relative;overflow:hidden}
.screen:before{content:"";position:absolute;inset:0;background:repeating-linear-gradient(0deg,transparent 0 7px,rgba(255,255,255,.04) 8px)}
.screen-content{position:relative;z-index:1}
.screen-label{display:inline-block;color:var(--ink);background:var(--lime);padding:3px 8px;border-radius:5px;font-size:11px;font-weight:900}
.screen h2{font-size:32px;line-height:1.15;margin:43px 0 10px;max-width:260px}
.screen p{color:#d4d7ca;font-size:13px}
.board-bottom{display:flex;align-items:center;justify-content:space-between;padding-top:17px}
.board-dots{display:flex;gap:8px}.board-dots span{width:13px;height:13px;border-radius:50%;background:var(--coral)}.board-dots span:nth-child(2){background:var(--lime)}.board-dots span:nth-child(3){background:var(--mint)}
.board-code{font:12px monospace;color:var(--muted)}
.section{padding:82px 0}
.section-light{background:var(--paper);color:var(--ink)}
.section-head{display:flex;justify-content:space-between;align-items:end;gap:30px;margin-bottom:32px}
.section h2{font-size:clamp(27px,3vw,42px);line-height:1.22;letter-spacing:-.04em;margin-top:10px}
.section-intro{color:#69716d;max-width:550px}
.quick-links{display:grid;grid-template-columns:1.4fr repeat(4,1fr);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.quick-link{padding:22px 18px;border-right:1px solid var(--line);transition:.2s}
.quick-link:first-child{background:var(--coral)}
.quick-link:hover{background:var(--panel-2);padding-left:23px}.quick-link:first-child:hover{background:var(--coral-dark)}
.quick-number{font:12px monospace;color:var(--lime);display:block;margin-bottom:24px}.quick-link:first-child .quick-number{color:var(--ink)}
.quick-link strong{display:block;font-size:17px}.quick-link span{display:block;color:var(--muted);font-size:12px;margin-top:4px}
.catalog-grid{display:grid;grid-template-columns:1.25fr .75fr;gap:20px}
.feature-card,.mini-card{border:1px solid var(--line);background:var(--panel);border-radius:var(--radius);overflow:hidden;transition:.22s}
.feature-card:hover,.mini-card:hover,.news-item:hover{transform:translateY(-4px);border-color:rgba(217,244,91,.6)}
.cover{height:280px;background:linear-gradient(135deg,#733f38,#303b35);position:relative;padding:26px;display:flex;flex-direction:column;justify-content:space-between}
.cover:after{content:"";position:absolute;right:24px;bottom:23px;width:90px;height:90px;border:14px solid var(--lime);border-radius:50%;opacity:.75}
.cover-title{font-size:40px;font-weight:900;line-height:1.12;max-width:270px;position:relative;z-index:1}
.cover-tag{align-self:flex-start;background:var(--lime);color:var(--ink);font-size:12px;font-weight:900;padding:4px 8px;border-radius:6px}
.card-body{padding:23px}.card-meta{display:flex;gap:12px;color:var(--mint);font-size:12px;margin-bottom:8px}.card-body h3{font-size:24px;line-height:1.3;margin-bottom:9px}.card-body p{color:var(--muted);font-size:14px;margin-bottom:18px}
.mini-stack{display:grid;gap:20px}.mini-card{padding:23px;display:flex;flex-direction:column;justify-content:space-between;min-height:190px}.mini-card:nth-child(1){background:var(--lime);color:var(--ink)}.mini-card:nth-child(1) .quick-number,.mini-card:nth-child(1) p{color:#53600f}.mini-card h3{font-size:22px;line-height:1.3}.mini-card p{color:var(--muted);font-size:14px;margin-top:9px}
.app-section{background:var(--mint);color:var(--ink);padding:65px 0;overflow:hidden}
.app-grid{display:grid;grid-template-columns:1fr 1fr;gap:60px;align-items:center}
.app-section h2{font-size:clamp(30px,4vw,50px);line-height:1.15;letter-spacing:-.05em;margin:12px 0 16px}.app-section .section-kicker{color:#395b4c}.app-copy{color:#385248;max-width:550px}
.app-points{display:flex;gap:10px;flex-wrap:wrap;margin:23px 0}.app-point{border:1px solid rgba(23,25,28,.24);border-radius:8px;padding:6px 10px;font-size:13px}
.app-actions{display:flex;gap:10px;align-items:center}.app-section .btn-primary{background:var(--ink)}.app-section .btn-primary:hover{background:#000}.qr{width:80px;height:80px;background:repeating-linear-gradient(45deg,#17191c 0 4px,#fff 4px 8px);border:7px solid #fff;border-radius:8px}
.device-stage{min-height:285px;background:rgba(255,255,255,.35);border-radius:22px;display:flex;align-items:center;justify-content:center;position:relative}
.device{width:180px;height:290px;border:8px solid var(--ink);border-radius:27px;background:#303638;box-shadow:18px 14px 0 rgba(23,25,28,.12);padding:13px}.device-screen{height:100%;border-radius:14px;background:linear-gradient(150deg,#fd715b,#d8f25b 52%,#99dfbf);padding:15px;color:var(--ink)}.device-screen strong{font-size:18px;display:block;margin-top:65px}.device-line{height:8px;background:rgba(255,255,255,.75);margin-top:12px;border-radius:8px}.device-line.short{width:60%}
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:0;border-left:1px solid var(--line-dark)}
.step{padding:8px 25px 8px 28px;border-right:1px solid var(--line-dark);min-height:170px;position:relative}.step-num{font:700 34px monospace;color:var(--coral)}.step h3{font-size:19px;margin:10px 0 6px}.step p{font-size:14px;color:#65706b}
.news-layout{display:grid;grid-template-columns:.92fr 1.08fr;gap:20px}.focus-news{background:#fff;border-radius:var(--radius);overflow:hidden;color:var(--ink);border:1px solid var(--line-dark)}.focus-visual{height:210px;background:linear-gradient(135deg,#303d36,#fa705b);padding:25px;font:700 54px/1 monospace;color:var(--lime)}.focus-news .card-body p{color:#69716d}.news-list{display:flex;flex-direction:column;gap:10px}.news-item{display:grid;grid-template-columns:105px 1fr auto;gap:16px;align-items:center;padding:17px 19px;background:var(--panel);border:1px solid var(--line);border-radius:13px;transition:.2s}.news-date{color:var(--lime);font:12px monospace}.news-item h3{font-size:16px;line-height:1.45}.news-item p{font-size:12px;color:var(--muted);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.news-arrow{color:var(--coral);font-size:22px}.empty-state{grid-column:1/-1;border:1px dashed var(--line);border-radius:14px;padding:30px;text-align:center;color:var(--muted)}
.faq-wrap{max-width:850px;margin:0 auto}.faq-item{border-bottom:1px solid var(--line);padding:20px 0}.faq-question{width:100%;display:flex;justify-content:space-between;align-items:center;background:none;border:0;color:var(--cream);text-align:left;font-weight:800;font-size:17px}.faq-question span{color:var(--lime);font-size:25px;transition:.2s}.faq-answer{display:none;color:var(--muted);font-size:14px;padding:12px 35px 0 0}.faq-item.open .faq-answer{display:block}.faq-item.open .faq-question span{transform:rotate(45deg)}
.cta{padding:28px 0;background:var(--coral);color:#fff}.cta-inner{display:flex;align-items:center;justify-content:space-between;gap:24px}.cta h2{font-size:25px;line-height:1.3}.cta p{font-size:14px;color:#ffe2dc}.cta .btn{background:var(--ink)}
.site-footer{background:#121416;padding:55px 0 25px;color:#c4c9c5}.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:40px;padding-bottom:42px;border-bottom:1px solid var(--line)}.footer-brand strong{display:block;color:#fff;font-size:19px;line-height:1.35;max-width:300px}.footer-brand p{font-size:13px;color:var(--muted);margin-top:13px;max-width:320px}.site-footer h3{font-size:14px;color:var(--lime);margin-bottom:14px}.footer-links{display:grid;gap:8px;font-size:13px}.footer-links a{color:var(--muted);transition:.2s}.footer-links a:hover{color:var(--coral)}.footer-bottom{display:flex;justify-content:space-between;gap:20px;padding-top:22px;color:#777d79;font-size:12px}.notice{font-size:12px;color:#8e9690}
@media(max-width:1024px){.main-nav a{padding-left:7px;padding-right:7px;font-size:13px}.logo{min-width:250px}.hero-grid{gap:35px}.steps{grid-template-columns:repeat(2,1fr);gap:0}.step:nth-child(2){border-right:0}.step{border-bottom:1px solid var(--line-dark)}}
@media(max-width:768px){.container{width:min(100% - 32px,var(--container))}.header-inner{height:72px}.logo{min-width:0;flex:1}.logo-text{font-size:12px}.main-nav{display:none;position:absolute;top:72px;left:0;right:0;background:var(--deep);padding:12px 16px;border-bottom:1px solid var(--line);flex-direction:column;align-items:stretch}.main-nav.open{display:flex}.main-nav a{padding:12px 14px}.menu-toggle{display:block}.search-toggle{font-size:0;width:40px;padding:0}.search-toggle:after{content:"⌕";font-size:20px}.download-btn{padding:9px 11px;font-size:13px}.hero{padding:62px 0 55px}.hero-grid,.app-grid,.news-layout,.catalog-grid{grid-template-columns:1fr}.hero h1{font-size:38px}.arcade-board{max-width:560px;margin:0 auto}.section{padding:60px 0}.quick-links{grid-template-columns:repeat(2,1fr)}.quick-link{border-bottom:1px solid var(--line)}.quick-link:first-child{grid-column:span 2}.app-grid{gap:30px}.device-stage{min-height:250px}.section-head{display:block}.section-intro{margin-top:12px}.footer-grid{grid-template-columns:1fr 1fr}.cta-inner{display:block}.cta .btn{margin-top:17px}}
@media(max-width:480px){body{font-size:15px}.container{width:calc(100% - 26px)}.logo-mark{width:31px;height:31px}.logo-text{font-size:10px}.logo-text small{font-size:8px}.header-tools{gap:5px}.download-btn{font-size:11px;padding:8px}.hero h1{font-size:31px}.hero-copy{font-size:16px}.hero-actions .btn{width:100%}.hero-facts{gap:12px}.fact{font-size:11px}.screen{min-height:245px}.screen h2{font-size:27px;margin-top:30px}.cover{height:220px}.cover-title{font-size:31px}.card-body{padding:18px}.quick-links{grid-template-columns:1fr}.quick-link:first-child{grid-column:auto}.steps{grid-template-columns:1fr}.step{border-right:0}.news-item{grid-template-columns:1fr auto;gap:3px 10px}.news-date{grid-column:1/-1}.news-item p{grid-column:1/-1;white-space:normal}.footer-grid{grid-template-columns:1fr;gap:27px}.footer-bottom{display:block}.footer-bottom .notice{margin-top:10px}.search-form{display:block}.search-form input{width:100%;margin-bottom:9px}.search-form .btn{width:100%}}

/* roulang page: article */
:root{
      --ink:#17191c;
      --deep:#202326;
      --panel:#292d30;
      --panel-2:#32373a;
      --paper:#f3f0e8;
      --cream:#fffdf7;
      --muted:#aeb2af;
      --line:rgba(255,255,255,.13);
      --line-dark:rgba(23,25,28,.14);
      --coral:#ff735d;
      --coral-dark:#db5545;
      --lime:#d9f45b;
      --mint:#9fe0c0;
      --radius:18px;
      --shadow:0 16px 34px rgba(0,0,0,.16);
      --container:1220px;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{margin:0;background:var(--ink);color:var(--cream);font-family:"Noto Sans SC","PingFang SC","Microsoft YaHei",Arial,sans-serif;font-size:16px;line-height:1.75}
    a{color:inherit;text-decoration:none}
    a:focus-visible,button:focus-visible,input:focus-visible{outline:3px solid var(--lime);outline-offset:3px}
    img{display:block;max-width:100%}
    button,input{font:inherit}
    button{cursor:pointer}
    button:disabled{cursor:not-allowed;opacity:.48}
    .container{width:min(var(--container),calc(100% - 48px));margin:0 auto}
    .site-header{position:sticky;top:0;z-index:30;background:rgba(23,25,28,.95);border-bottom:1px solid var(--line);backdrop-filter:blur(14px)}
    .header-inner{min-height:82px;display:flex;align-items:center;gap:28px}
    .logo{display:flex;align-items:center;gap:12px;min-width:310px}
    .logo-mark{width:38px;height:38px;background:var(--coral);border-radius:11px 11px 11px 4px;position:relative;flex:none}
    .logo-mark:before,.logo-mark:after{content:"";position:absolute;border-radius:50%;background:var(--lime)}
    .logo-mark:before{width:8px;height:8px;left:9px;top:9px}
    .logo-mark:after{width:8px;height:8px;right:8px;bottom:8px}
    .logo-text{font-size:15px;font-weight:800;line-height:1.28;letter-spacing:-.02em}
    .logo-text small{display:block;color:var(--mint);font-size:10px;font-family:monospace;letter-spacing:.14em;margin-top:4px}
    .main-nav{display:flex;align-items:center;gap:4px;flex:1}
    .main-nav a{padding:9px 11px;color:#c9cdca;font-size:14px;border-radius:9px;transition:.22s}
    .main-nav a:hover,.main-nav a.active{color:var(--ink);background:var(--lime)}
    .header-tools{display:flex;align-items:center;gap:9px}
    .search-toggle,.menu-toggle{border:1px solid var(--line);background:transparent;color:var(--cream);height:40px;border-radius:10px;padding:0 13px;transition:.2s}
    .search-toggle:hover,.menu-toggle:hover{border-color:var(--lime);color:var(--lime)}
    .download-btn,.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border:0;border-radius:11px;padding:12px 19px;font-weight:800;transition:.2s}
    .download-btn,.btn-primary{background:var(--coral);color:#fff}
    .download-btn:hover,.btn-primary:hover{background:var(--coral-dark);transform:translateY(-2px)}
    .btn-outline{border:1px solid rgba(255,255,255,.28);color:var(--cream);background:transparent}
    .btn-outline:hover{border-color:var(--lime);color:var(--lime);transform:translateY(-2px)}
    .menu-toggle{display:none}
    .search-panel{display:none;background:var(--panel);border-bottom:1px solid var(--line);padding:18px 0}
    .search-panel.open{display:block}
    .search-form{display:flex;max-width:620px;margin-left:auto;gap:10px}
    .search-form input{flex:1;background:var(--ink);border:1px solid var(--line);color:#fff;border-radius:10px;padding:11px 15px}
    .article-shell{padding:46px 0 84px;background:var(--paper);color:var(--ink)}
    .breadcrumb{display:flex;flex-wrap:wrap;gap:8px;align-items:center;color:#68716d;font-size:13px;margin-bottom:34px}
    .breadcrumb a:hover{color:var(--coral-dark)}
    .breadcrumb .separator{color:#a6aaa5}
    .article-layout{display:grid;grid-template-columns:minmax(0,820px) 280px;gap:56px;align-items:start}
    .article-main{min-width:0}
    .article-header{padding-bottom:30px;border-bottom:1px solid var(--line-dark)}
    .article-label{display:inline-flex;align-items:center;background:var(--coral);color:#fff;padding:5px 10px;border-radius:7px;font-size:12px;font-weight:800;margin-bottom:17px}
    .article-title{font-size:clamp(32px,4.2vw,58px);line-height:1.2;letter-spacing:-.05em;margin:0 0 20px;overflow-wrap:anywhere}
    .article-summary{color:#5f6864;font-size:17px;max-width:740px}
    .article-meta{display:flex;flex-wrap:wrap;gap:18px;color:#78807c;font-size:13px;margin-top:22px}
    .article-meta span{display:inline-flex;align-items:center;gap:6px}
    .article-meta span:before{content:"";width:6px;height:6px;border-radius:50%;background:var(--lime);display:inline-block}
    .article-content{padding:34px 0 10px;color:#303638;font-size:17px;line-height:1.95}
    .article-content h2{font-size:30px;line-height:1.35;color:var(--ink);margin:42px 0 16px;letter-spacing:-.035em}
    .article-content h3{font-size:23px;line-height:1.4;color:var(--ink);margin:30px 0 12px}
    .article-content p{margin:0 0 22px}
    .article-content ul,.article-content ol{padding-left:1.5em;margin:0 0 24px}
    .article-content li{margin:7px 0}
    .article-content img{width:100%;height:auto;border-radius:14px;margin:28px 0}
    .article-content blockquote{border-left:4px solid var(--coral);background:#fffaf0;padding:18px 22px;margin:28px 0;color:#555d59;border-radius:0 12px 12px 0}
    .article-content table{width:100%;border-collapse:collapse;margin:28px 0;background:var(--cream);font-size:15px}
    .article-content th,.article-content td{border:1px solid var(--line-dark);padding:11px 13px;text-align:left}
    .article-content th{background:#e8e4da;color:var(--ink)}
    .article-content a{color:var(--coral-dark);text-decoration:underline;text-underline-offset:3px}
    .article-content pre,.article-content code{font-family:ui-monospace,SFMono-Regular,Consolas,monospace}
    .article-content pre{background:#25292b;color:#e9f0e9;border-radius:12px;padding:18px;overflow:auto;font-size:14px;line-height:1.65}
    .article-content code{background:#e6e1d5;padding:2px 5px;border-radius:5px;color:#8d3d31}
    .article-content pre code{background:transparent;color:inherit;padding:0}
    .article-sidebar{position:sticky;top:112px}
    .side-card{background:var(--deep);color:var(--cream);border-radius:var(--radius);padding:24px;border:1px solid var(--line);box-shadow:var(--shadow);margin-bottom:16px}
    .side-card.lime{background:var(--lime);color:var(--ink);border:0}
    .side-card h2{font-size:20px;line-height:1.35;margin:0 0 12px}
    .side-card p{font-size:14px;color:var(--muted);margin:0 0 18px}
    .side-card.lime p{color:#53600f}
    .side-links{display:grid;gap:9px}
    .side-links a{padding:10px 12px;border:1px solid var(--line);border-radius:9px;color:#dce1dc;font-size:14px;transition:.2s}
    .side-links a:hover{border-color:var(--lime);color:var(--lime);transform:translateX(3px)}
    .empty-state{background:var(--cream);border:1px dashed #aeb3ac;border-radius:var(--radius);padding:65px 30px;text-align:center}
    .empty-state h1{font-size:34px;margin:0 0 12px}
    .empty-state p{color:#68716d;margin:0 0 24px}
    .article-footer{margin-top:40px;padding-top:25px;border-top:1px solid var(--line-dark);display:flex;flex-wrap:wrap;gap:12px}
    .related-section{padding:72px 0;background:var(--deep)}
    .section-kicker{color:var(--lime);font:700 12px/1.2 monospace;letter-spacing:.13em}
    .related-section h2{font-size:clamp(28px,3vw,42px);line-height:1.2;letter-spacing:-.04em;margin:12px 0 28px}
    .related-grid{display:grid;grid-template-columns:1.4fr .6fr;gap:16px}
    .related-feature,.related-link{border:1px solid var(--line);border-radius:var(--radius);background:var(--panel);padding:25px;transition:.22s}
    .related-feature:hover,.related-link:hover{transform:translateY(-4px);border-color:rgba(217,244,91,.6)}
    .related-feature h3{font-size:25px;line-height:1.35;margin:10px 0}
    .related-feature p,.related-link p{color:var(--muted);font-size:14px;margin:0 0 16px}
    .related-stack{display:grid;gap:16px}
    .related-link h3{font-size:17px;line-height:1.45;margin:0 0 7px}
    .site-footer{background:#111315;color:var(--cream);padding:55px 0 22px;border-top:1px solid var(--line)}
    .footer-grid{display:grid;grid-template-columns:1.5fr .8fr .8fr 1fr;gap:38px;padding-bottom:42px}
    .footer-brand strong{display:block;font-size:17px;line-height:1.45;margin-bottom:13px}
    .footer-brand p,.site-footer .notice{color:#929994;font-size:13px;margin:0}
    .site-footer h3{font-size:15px;margin:0 0 14px;color:var(--lime)}
    .footer-links{display:grid;gap:8px}
    .footer-links a{font-size:14px;color:#c5cac5;transition:.2s}
    .footer-links a:hover{color:var(--coral);transform:translateX(3px)}
    .footer-bottom{border-top:1px solid var(--line);padding-top:18px;display:flex;justify-content:space-between;gap:20px;font-size:12px;color:#777f7a}
    .cta-strip{padding:24px 0;background:var(--coral);color:#fff}
    .cta-inner{display:flex;align-items:center;justify-content:space-between;gap:20px}
    .cta-inner strong{font-size:20px}
    .cta-inner .btn{background:var(--ink);color:#fff}
    @media(max-width:1100px){
      .logo{min-width:260px}
      .main-nav a{padding:8px 7px;font-size:13px}
      .article-layout{grid-template-columns:minmax(0,1fr) 245px;gap:32px}
    }
    @media(max-width:768px){
      .container{width:min(var(--container),calc(100% - 32px))}
      .header-inner{min-height:70px;gap:12px}
      .logo{min-width:0;flex:1}
      .logo-text{font-size:12px}
      .logo-text small{font-size:9px}
      .logo-mark{width:34px;height:34px}
      .main-nav{display:none;position:absolute;top:70px;left:0;right:0;padding:12px 16px;background:var(--deep);border-bottom:1px solid var(--line);flex-direction:column;align-items:stretch}
      .main-nav.open{display:flex}
      .main-nav a{padding:12px 14px}
      .header-tools{gap:6px}
      .search-toggle{font-size:0;width:40px;padding:0}
      .search-toggle:before{content:"⌕";font-size:22px}
      .download-btn{padding:9px 12px;font-size:13px}
      .menu-toggle{display:block;font-size:0;width:40px;padding:0}
      .menu-toggle:before{content:"☰";font-size:18px}
      .search-form{margin:0;flex-direction:column}
      .article-shell{padding:30px 0 60px}
      .breadcrumb{margin-bottom:24px}
      .article-layout{display:block}
      .article-title{font-size:36px}
      .article-content{font-size:16px;line-height:1.9}
      .article-sidebar{position:static;margin-top:35px}
      .related-grid{grid-template-columns:1fr}
      .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
      .cta-inner{align-items:flex-start;flex-direction:column}
    }
    @media(max-width:480px){
      .container{width:calc(100% - 28px)}
      .logo-text{max-width:185px}
      .logo-mark{width:31px;height:31px}
      .download-btn{font-size:12px;padding:8px 9px}
      .article-title{font-size:30px}
      .article-header{padding-bottom:23px}
      .article-content h2{font-size:25px}
      .article-content h3{font-size:20px}
      .article-content table{font-size:13px;display:block;overflow:auto}
      .article-footer .btn{width:100%}
      .footer-grid{grid-template-columns:1fr}
      .footer-bottom{display:block}
      .footer-bottom span{display:block;margin-bottom:8px}
      .related-feature,.related-link,.side-card{padding:20px}
    }

/* roulang page: category1 */
:root{
      --ink:#17191c;
      --deep:#202326;
      --panel:#292d30;
      --panel-2:#32373a;
      --paper:#f3f0e8;
      --cream:#fffdf7;
      --muted:#aeb2af;
      --line:rgba(255,255,255,.13);
      --line-dark:rgba(23,25,28,.14);
      --coral:#ff735d;
      --coral-dark:#db5545;
      --lime:#d9f45b;
      --mint:#9fe0c0;
      --radius:18px;
      --shadow:0 16px 34px rgba(0,0,0,.16);
      --container:1220px;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{margin:0;background:var(--ink);color:var(--cream);font-family:"Noto Sans SC","PingFang SC","Microsoft YaHei",Arial,sans-serif;font-size:16px;line-height:1.75}
    a{color:inherit;text-decoration:none}
    img{display:block;max-width:100%}
    button,input{font:inherit}
    button{cursor:pointer}
    button:disabled{cursor:not-allowed;opacity:.48}
    :focus-visible{outline:3px solid var(--lime);outline-offset:3px}
    .container{width:min(var(--container),calc(100% - 48px));margin:0 auto}
    .site-header{position:sticky;top:0;z-index:30;background:rgba(23,25,28,.95);border-bottom:1px solid var(--line);backdrop-filter:blur(14px)}
    .header-inner{min-height:82px;display:flex;align-items:center;gap:26px}
    .logo{display:flex;align-items:center;gap:12px;min-width:305px}
    .logo-mark{width:38px;height:38px;background:var(--coral);border-radius:11px 11px 11px 4px;position:relative;flex:none}
    .logo-mark:before,.logo-mark:after{content:"";position:absolute;border-radius:50%;background:var(--lime)}
    .logo-mark:before{width:8px;height:8px;left:9px;top:9px}
    .logo-mark:after{width:8px;height:8px;right:8px;bottom:8px}
    .logo-text{font-size:15px;font-weight:800;line-height:1.28;letter-spacing:-.02em}
    .logo-text small{display:block;color:var(--mint);font-size:10px;font-family:monospace;letter-spacing:.14em;margin-top:4px}
    .main-nav{display:flex;align-items:center;gap:4px;flex:1}
    .main-nav a{padding:9px 10px;color:#c9cdca;font-size:14px;border-radius:9px;transition:.22s}
    .main-nav a:hover,.main-nav a.active{color:var(--ink);background:var(--lime)}
    .header-tools{display:flex;align-items:center;gap:9px}
    .search-toggle,.menu-toggle{border:1px solid var(--line);background:transparent;color:var(--cream);height:40px;border-radius:10px;padding:0 13px;transition:.2s}
    .search-toggle:hover,.menu-toggle:hover{border-color:var(--lime);color:var(--lime)}
    .download-btn,.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border:0;border-radius:11px;padding:12px 19px;font-weight:800;transition:.2s}
    .download-btn,.btn-primary{background:var(--coral);color:#fff}
    .download-btn:hover,.btn-primary:hover{background:var(--coral-dark);transform:translateY(-2px)}
    .btn-outline{border:1px solid rgba(255,255,255,.28);color:var(--cream);background:transparent}
    .btn-outline:hover{border-color:var(--lime);color:var(--lime);transform:translateY(-2px)}
    .menu-toggle{display:none}
    .search-panel{display:none;background:var(--panel);border-bottom:1px solid var(--line);padding:18px 0}
    .search-panel.open{display:block}
    .search-form{display:flex;max-width:620px;margin-left:auto;gap:10px}
    .search-form input{flex:1;background:var(--ink);border:1px solid var(--line);color:#fff;border-radius:10px;padding:11px 15px}
    .subhero{padding:82px 0 68px;background:linear-gradient(135deg,var(--deep),#292d30 68%,#3a3430);position:relative;overflow:hidden}
    .subhero:before{content:"PG / 01";position:absolute;right:7%;bottom:-28px;color:rgba(217,244,91,.11);font:900 120px/1 monospace;letter-spacing:-.1em}
    .subhero-inner{position:relative;z-index:1;max-width:850px}
    .eyebrow,.section-kicker{color:var(--lime);font:700 12px/1.2 monospace;letter-spacing:.13em;text-transform:uppercase}
    .subhero h1{font-size:clamp(36px,5vw,66px);line-height:1.12;letter-spacing:-.06em;margin:18px 0 20px}
    .subhero p{color:#c8ccca;font-size:18px;max-width:730px;margin:0}
    .subhero-actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:28px}
    .section{padding:82px 0}
    .section-light{background:var(--paper);color:var(--ink)}
    .section-head{display:flex;justify-content:space-between;align-items:end;gap:30px;margin-bottom:32px}
    .section h2{font-size:clamp(28px,3vw,42px);line-height:1.22;letter-spacing:-.045em;margin:10px 0 0}
    .section-intro{color:#69716d;max-width:570px;margin:0}
    .index-layout{display:grid;grid-template-columns:.72fr 1.28fr;gap:28px;align-items:start}
    .index-panel{background:var(--lime);color:var(--ink);border-radius:var(--radius);padding:28px;position:sticky;top:108px}
    .index-panel h3{font-size:24px;margin:0 0 18px}
    .index-links{display:flex;flex-direction:column;gap:8px}
    .index-links a{display:flex;justify-content:space-between;align-items:center;border-top:1px solid rgba(23,25,28,.2);padding:12px 0;font-weight:700;transition:.2s}
    .index-links a:hover{padding-left:7px;color:var(--coral-dark)}
    .index-links span{font:700 12px monospace}
    .info-stack{display:flex;flex-direction:column;gap:12px}
    .info-row{display:grid;grid-template-columns:65px 1fr auto;gap:20px;align-items:center;background:var(--panel);border:1px solid var(--line);border-radius:15px;padding:21px 23px;transition:.22s}
    .info-row:hover{transform:translateX(4px);border-color:rgba(217,244,91,.55)}
    .info-number{font:900 26px/1 monospace;color:var(--lime)}
    .info-row h3{font-size:20px;margin:0 0 5px}
    .info-row p{font-size:14px;color:var(--muted);margin:0}
    .arrow{color:var(--coral);font-size:24px}
    .path-section{background:#24282a}
    .path-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:1px;background:var(--line);border:1px solid var(--line)}
    .path-step{background:var(--deep);padding:28px 23px;min-height:205px}
    .path-step:nth-child(even){background:var(--panel)}
    .path-step strong{display:block;color:var(--coral);font:900 38px/1 monospace;margin-bottom:24px}
    .path-step h3{font-size:19px;margin:0 0 9px}
    .path-step p{font-size:14px;color:var(--muted);margin:0}
    .catalog-area{display:grid;grid-template-columns:1.05fr .95fr;gap:24px}
    .catalog-feature{background:var(--panel);border-radius:var(--radius);overflow:hidden;border:1px solid var(--line)}
    .cover{height:245px;padding:24px;background:linear-gradient(140deg,#3e4544,#202326);position:relative;display:flex;flex-direction:column;justify-content:space-between}
    .cover:after{content:"";position:absolute;width:160px;height:160px;border:1px solid rgba(159,224,192,.45);right:35px;top:38px;transform:rotate(28deg);border-radius:26px}
    .cover-tag{align-self:flex-start;background:var(--lime);color:var(--ink);font-size:12px;font-weight:900;padding:4px 8px;border-radius:6px;position:relative;z-index:1}
    .cover-title{font-size:38px;font-weight:900;line-height:1.12;max-width:300px;position:relative;z-index:1}
    .catalog-feature .card-body{padding:23px}
    .card-meta{display:flex;gap:12px;color:var(--mint);font-size:12px;margin-bottom:8px}
    .card-body h3{font-size:24px;line-height:1.3;margin:0 0 9px}
    .card-body p{color:var(--muted);font-size:14px;margin:0 0 18px}
    .side-notes{display:flex;flex-direction:column;gap:12px}
    .note-card{background:var(--paper);color:var(--ink);border-radius:var(--radius);padding:25px;min-height:116px;border-left:5px solid var(--coral);transition:.2s}
    .note-card:nth-child(2){border-left-color:var(--mint)}
    .note-card:hover{transform:translateY(-3px);box-shadow:var(--shadow)}
    .note-card h3{font-size:20px;margin:0 0 5px}
    .note-card p{font-size:14px;color:#69716d;margin:0}
    .device-section{background:var(--mint);color:var(--ink);padding:62px 0}
    .device-grid{display:grid;grid-template-columns:1fr 1fr;gap:60px;align-items:center}
    .device-section h2{font-size:clamp(30px,4vw,49px);line-height:1.15;letter-spacing:-.05em;margin:12px 0 15px}
    .device-section .section-kicker{color:#395b4c}
    .device-section p{max-width:580px;color:#395044}
    .device-list{display:flex;flex-wrap:wrap;gap:9px;margin:22px 0}
    .device-list span{border:1px solid rgba(23,25,28,.25);border-radius:999px;padding:7px 12px;font-size:13px;font-weight:700}
    .device-stage{min-height:270px;background:rgba(255,255,255,.34);border-radius:22px;display:flex;align-items:center;justify-content:center;position:relative}
    .device-frame{width:190px;height:225px;border:8px solid var(--ink);border-radius:25px;background:var(--paper);padding:15px;color:var(--ink);box-shadow:10px 12px 0 rgba(23,25,28,.13);transform:rotate(5deg)}
    .device-frame b{display:block;border-bottom:2px solid var(--coral);padding-bottom:8px;margin-bottom:12px}
    .device-line{height:13px;background:#d8ded9;border-radius:5px;margin:10px 0}
    .device-line.short{width:65%;background:var(--lime)}
    .faq-list{max-width:850px;margin:0 auto;display:flex;flex-direction:column;gap:10px}
    .faq-item{border:1px solid var(--line-dark);border-radius:13px;background:var(--cream);overflow:hidden}
    .faq-question{width:100%;border:0;background:transparent;color:var(--ink);padding:18px 21px;text-align:left;font-weight:800;display:flex;justify-content:space-between;align-items:center}
    .faq-question span:last-child{font-size:24px;color:var(--coral);transition:.2s}
    .faq-item.open .faq-question span:last-child{transform:rotate(45deg)}
    .faq-answer{display:none;padding:0 21px 19px;color:#69716d;font-size:14px}
    .faq-item.open .faq-answer{display:block}
    .cta{background:var(--coral);color:#fff;padding:34px 0}
    .cta-inner{display:flex;align-items:center;justify-content:space-between;gap:25px}
    .cta h2{font-size:clamp(24px,3vw,37px);margin:0;line-height:1.2}
    .cta p{margin:7px 0 0;color:#ffe8e3}
    .cta .btn{background:var(--ink);color:#fff}
    .site-footer{background:#111315;padding:58px 0 24px;border-top:1px solid var(--line)}
    .footer-grid{display:grid;grid-template-columns:1.5fr .8fr .8fr 1fr;gap:38px}
    .footer-brand strong{display:block;max-width:300px;font-size:16px;line-height:1.45}
    .footer-brand p,.site-footer .notice{color:#898f8c;font-size:13px}
    .site-footer h3{font-size:15px;color:var(--lime);margin:0 0 14px}
    .footer-links{display:flex;flex-direction:column;gap:7px}
    .footer-links a{color:#c8ccca;font-size:14px;transition:.2s}
    .footer-links a:hover{color:var(--coral);padding-left:4px}
    .footer-bottom{border-top:1px solid var(--line);margin-top:38px;padding-top:18px;display:flex;justify-content:space-between;gap:20px;color:#737976;font-size:12px}
    .status-strip{display:flex;gap:10px;flex-wrap:wrap;margin-top:18px}
    .status-strip span{font-size:12px;border:1px solid var(--line);border-radius:999px;padding:5px 10px;color:var(--muted)}
    .empty-state{display:none;border:1px dashed var(--line);border-radius:14px;padding:24px;color:var(--muted);text-align:center}
    .error-state{display:none;background:rgba(255,115,93,.1);border-left:3px solid var(--coral);padding:13px 16px;color:#ffc2b8;font-size:13px}
    @media(max-width:1024px){
      .logo{min-width:250px}
      .main-nav a{font-size:13px;padding-left:7px;padding-right:7px}
      .index-layout,.catalog-area{grid-template-columns:1fr}
      .index-panel{position:static}
    }
    @media(max-width:768px){
      .container{width:min(var(--container),calc(100% - 32px))}
      .header-inner{min-height:72px;gap:12px}
      .logo{min-width:0;flex:1}
      .logo-text{font-size:12px}
      .logo-text small{font-size:8px}
      .main-nav{display:none;position:absolute;left:16px;right:16px;top:72px;padding:10px;background:var(--panel);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}
      .menu-toggle{display:block}
      .header-tools .search-toggle{font-size:0;padding:0 11px}
      .header-tools .search-toggle:first-letter{font-size:16px}
      .download-btn{padding:9px 11px;font-size:13px}
      .hero-grid,.device-grid{grid-template-columns:1fr;gap:30px}
      .subhero{padding:62px 0 55px}
      .section{padding:60px 0}
      .path-grid{grid-template-columns:1fr 1fr}
      .cta-inner{align-items:flex-start;flex-direction:column}
      .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
    }
    @media(max-width:480px){
      .logo-mark{width:32px;height:32px}
      .logo-text{max-width:190px}
      .subhero h1{font-size:37px}
      .subhero p{font-size:16px}
      .subhero-actions .btn{width:100%}
      .section-head{display:block}
      .section-intro{margin-top:13px}
      .path-grid{grid-template-columns:1fr}
      .info-row{grid-template-columns:42px 1fr 18px;gap:11px;padding:17px 14px}
      .info-number{font-size:20px}
      .info-row h3{font-size:17px}
      .cover{height:205px}
      .cover-title{font-size:31px}
      .device-stage{min-height:235px}
      .footer-grid{grid-template-columns:1fr}
      .footer-bottom{display:block}
      .footer-bottom .notice{display:block;margin-top:8px}
    }

/* roulang page: category2 */
:root{
      --ink:#17191c;
      --deep:#202326;
      --panel:#292d30;
      --panel-2:#32373a;
      --paper:#f3f0e8;
      --cream:#fffdf7;
      --muted:#aeb2af;
      --line:rgba(255,255,255,.13);
      --line-dark:rgba(23,25,28,.14);
      --coral:#ff735d;
      --coral-dark:#db5545;
      --lime:#d9f45b;
      --mint:#9fe0c0;
      --radius:18px;
      --shadow:0 16px 34px rgba(0,0,0,.16);
      --container:1220px;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{margin:0;background:var(--ink);color:var(--cream);font-family:"Noto Sans SC","PingFang SC","Microsoft YaHei",Arial,sans-serif;font-size:16px;line-height:1.75}
    a{color:inherit;text-decoration:none}
    a:focus-visible,button:focus-visible,input:focus-visible,summary:focus-visible{outline:3px solid var(--lime);outline-offset:3px}
    img{display:block;max-width:100%}
    button,input{font:inherit}
    button{cursor:pointer}
    button:disabled{cursor:not-allowed;opacity:.48}
    .container{width:min(var(--container),calc(100% - 48px));margin:0 auto}
    .site-header{position:sticky;top:0;z-index:30;background:rgba(23,25,28,.95);border-bottom:1px solid var(--line);backdrop-filter:blur(14px)}
    .header-inner{height:82px;display:flex;align-items:center;gap:28px}
    .logo{display:flex;align-items:center;gap:12px;min-width:310px}
    .logo-mark{width:38px;height:38px;background:var(--coral);border-radius:11px 11px 11px 4px;position:relative;flex:none}
    .logo-mark:before,.logo-mark:after{content:"";position:absolute;border-radius:50%;background:var(--lime)}
    .logo-mark:before{width:8px;height:8px;left:9px;top:9px}
    .logo-mark:after{width:8px;height:8px;right:8px;bottom:8px}
    .logo-text{font-size:15px;font-weight:800;line-height:1.28;letter-spacing:-.02em}
    .logo-text small{display:block;color:var(--mint);font-size:10px;font-family:monospace;letter-spacing:.14em;margin-top:4px}
    .main-nav{display:flex;align-items:center;gap:4px;flex:1}
    .main-nav a{padding:9px 11px;color:#c9cdca;font-size:14px;border-radius:9px;transition:.22s}
    .main-nav a:hover,.main-nav a.active{color:var(--ink);background:var(--lime)}
    .header-tools{display:flex;align-items:center;gap:9px}
    .search-toggle,.menu-toggle{border:1px solid var(--line);background:transparent;color:var(--cream);height:40px;border-radius:10px;padding:0 13px;transition:.2s}
    .search-toggle:hover,.menu-toggle:hover{border-color:var(--lime);color:var(--lime)}
    .download-btn,.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border:0;border-radius:11px;padding:12px 19px;font-weight:800;transition:.2s}
    .download-btn,.btn-primary{background:var(--coral);color:#fff}
    .download-btn:hover,.btn-primary:hover{background:var(--coral-dark);transform:translateY(-2px)}
    .btn-outline{border:1px solid rgba(255,255,255,.28);color:var(--cream);background:transparent}
    .btn-outline:hover{border-color:var(--lime);color:var(--lime);transform:translateY(-2px)}
    .menu-toggle{display:none}
    .search-panel{display:none;background:var(--panel);border-bottom:1px solid var(--line);padding:18px 0}
    .search-panel.open{display:block}
    .search-form{display:flex;max-width:620px;margin-left:auto;gap:10px}
    .search-form input{flex:1;background:var(--ink);border:1px solid var(--line);color:#fff;border-radius:10px;padding:11px 15px}
    .search-form input::placeholder{color:#818987}
    .sub-hero{position:relative;overflow:hidden;padding:74px 0 68px;background:
      linear-gradient(115deg,rgba(32,35,38,.98),rgba(41,45,48,.92)),
      repeating-linear-gradient(0deg,transparent 0 31px,rgba(255,255,255,.025) 32px),
      repeating-linear-gradient(90deg,transparent 0 31px,rgba(255,255,255,.025) 32px)}
    .sub-hero:after{content:"PG / 02";position:absolute;right:5%;bottom:20px;color:rgba(217,244,91,.16);font:900 86px/1 monospace;letter-spacing:-.08em;transform:rotate(-8deg)}
    .sub-hero-inner{position:relative;z-index:1;max-width:820px}
    .eyebrow,.section-kicker{color:var(--lime);font:700 12px/1.2 monospace;letter-spacing:.13em;text-transform:uppercase}
    .sub-hero h1{font-size:clamp(36px,5vw,66px);line-height:1.12;letter-spacing:-.055em;margin:18px 0 18px}
    .sub-hero p{max-width:720px;color:#c8ccca;font-size:18px;margin:0}
    .hero-links{display:flex;flex-wrap:wrap;gap:10px;margin-top:28px}
    .section{padding:78px 0}
    .section-light{background:var(--paper);color:var(--ink)}
    .section-head{display:flex;justify-content:space-between;align-items:end;gap:30px;margin-bottom:30px}
    .section h2{font-size:clamp(28px,3vw,42px);line-height:1.22;letter-spacing:-.04em;margin:10px 0 0}
    .section-intro{color:#69716d;max-width:570px;margin:0}
    .dark-intro{color:var(--muted)}
    .filter-bar{display:flex;align-items:center;gap:10px;flex-wrap:wrap;padding:16px;background:var(--panel);border:1px solid var(--line);border-radius:14px;margin-bottom:26px}
    .filter-label{color:var(--muted);font-size:13px;margin-right:4px}
    .filter-btn{border:1px solid rgba(255,255,255,.18);background:transparent;color:#c9cdca;border-radius:9px;padding:8px 14px;font-size:13px;transition:.2s}
    .filter-btn:hover,.filter-btn.active{background:var(--lime);border-color:var(--lime);color:var(--ink)}
    .catalog-layout{display:grid;grid-template-columns:1.08fr .92fr;gap:22px;align-items:stretch}
    .feature-game{min-height:430px;position:relative;overflow:hidden;border-radius:var(--radius);border:1px solid var(--line);background:var(--panel)}
    .feature-cover{height:238px;padding:25px;display:flex;flex-direction:column;justify-content:space-between;position:relative;background:
      linear-gradient(135deg,rgba(255,115,93,.9),rgba(217,244,91,.78)),
      repeating-linear-gradient(135deg,transparent 0 13px,rgba(23,25,28,.12) 14px 16px)}
    .feature-cover:after{content:"PGSOFT";position:absolute;right:18px;bottom:12px;color:rgba(23,25,28,.22);font:900 54px/1 monospace;letter-spacing:-.08em}
    .cover-index{font:700 13px monospace;color:var(--ink)}
    .cover-title{font-size:40px;font-weight:900;line-height:1.1;max-width:300px;position:relative;z-index:1;color:var(--ink)}
    .cover-tag{align-self:flex-start;background:var(--ink);color:var(--lime);font-size:12px;font-weight:900;padding:4px 9px;border-radius:6px;position:relative;z-index:1}
    .game-info{padding:24px}
    .game-meta{display:flex;flex-wrap:wrap;gap:10px;color:#527b68;font-size:12px;margin-bottom:9px}
    .game-info h3{font-size:25px;line-height:1.3;margin:0 0 9px}
    .game-info p{color:#69716d;margin:0 0 20px;font-size:14px}
    .game-actions{display:flex;gap:10px;flex-wrap:wrap}
    .catalog-list{display:flex;flex-direction:column;gap:12px}
    .game-row{display:grid;grid-template-columns:92px 1fr auto;gap:17px;align-items:center;background:var(--panel);border:1px solid var(--line);border-radius:14px;padding:13px;transition:.22s}
    .game-row:hover{transform:translateY(-3px);border-color:rgba(217,244,91,.62);box-shadow:var(--shadow)}
    .row-cover{height:88px;border-radius:10px;background:var(--panel-2);display:flex;align-items:center;justify-content:center;color:var(--lime);font:800 18px/1 monospace;position:relative;overflow:hidden}
    .row-cover:before{content:"";position:absolute;width:90px;height:90px;border:1px solid rgba(159,224,192,.4);transform:rotate(45deg)}
    .row-info h3{font-size:17px;line-height:1.35;margin:0 0 5px}
    .row-info p{font-size:13px;color:var(--muted);line-height:1.55;margin:0}
    .row-info time{display:block;color:var(--mint);font-size:11px;margin-top:6px}
    .row-arrow{color:var(--coral);font-size:20px;transition:.2s}
    .game-row:hover .row-arrow{transform:translateX(4px)}
    .directory{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}
    .directory-item{padding:21px;background:var(--cream);border:1px solid var(--line-dark);border-radius:14px;transition:.2s}
    .directory-item:hover{transform:translateY(-3px);border-color:var(--coral);box-shadow:0 10px 24px rgba(23,25,28,.1)}
    .directory-number{color:var(--coral);font:800 13px monospace}
    .directory-item h3{font-size:18px;margin:16px 0 7px}
    .directory-item p{font-size:13px;color:#68716d;line-height:1.6;margin:0}
    .directory-item a{display:inline-block;color:var(--coral-dark);font-size:13px;font-weight:800;margin-top:14px}
    .info-band{background:var(--mint);color:var(--ink);padding:54px 0}
    .info-grid{display:grid;grid-template-columns:1fr 1.2fr;gap:55px;align-items:center}
    .info-band h2{font-size:clamp(28px,4vw,48px);line-height:1.15;letter-spacing:-.05em;margin:10px 0 13px}
    .info-band p{color:#385548;max-width:520px}
    .device-note{display:grid;grid-template-columns:repeat(3,1fr);gap:10px}
    .device-note div{background:rgba(255,255,255,.38);border:1px solid rgba(23,25,28,.12);border-radius:12px;padding:17px}
    .device-note strong{display:block;font-size:20px}
    .device-note span{font-size:12px;color:#527061}
    .faq-list{max-width:850px;margin:0 auto;border-top:1px solid var(--line-dark)}
    details{border-bottom:1px solid var(--line-dark);padding:19px 0}
    summary{cursor:pointer;list-style:none;font-weight:800;font-size:17px;display:flex;justify-content:space-between;gap:15px}
    summary::-webkit-details-marker{display:none}
    summary:after{content:"+";color:var(--coral);font:700 24px/1 monospace}
    details[open] summary:after{content:"−"}
    details p{color:#69716d;max-width:730px;margin:13px 0 0;font-size:14px}
    .cta{padding:25px 0;background:var(--coral)}
    .cta-inner{display:flex;justify-content:space-between;align-items:center;gap:25px}
    .cta h2{font-size:26px;margin:0;line-height:1.3}
    .cta p{margin:5px 0 0;color:#fff0ec;font-size:14px}
    .cta .btn{background:var(--ink);color:var(--cream)}
    .site-footer{background:var(--deep);border-top:1px solid var(--line);padding:58px 0 22px}
    .footer-grid{display:grid;grid-template-columns:1.5fr .8fr .8fr 1fr;gap:38px;padding-bottom:38px}
    .footer-brand strong{display:block;max-width:350px;font-size:17px;line-height:1.45}
    .footer-brand p,.site-footer .notice{color:var(--muted);font-size:13px;line-height:1.7}
    .site-footer h3{font-size:15px;margin:0 0 15px;color:var(--lime)}
    .footer-links{display:flex;flex-direction:column;gap:8px}
    .footer-links a{color:#c9cdca;font-size:13px;transition:.2s}
    .footer-links a:hover{color:var(--coral)}
    .footer-bottom{display:flex;justify-content:space-between;gap:20px;padding-top:20px;border-top:1px solid var(--line);color:#858d89;font-size:12px}
    .status-note{margin-top:18px;color:#68716d;font-size:13px}
    @media(max-width:1080px){
      .header-inner{gap:16px}.logo{min-width:260px}.main-nav a{padding:8px 7px;font-size:13px}
      .catalog-layout,.info-grid{grid-template-columns:1fr}.directory{grid-template-columns:repeat(2,1fr)}
    }
    @media(max-width:768px){
      .container{width:min(var(--container),calc(100% - 32px))}
      .header-inner{height:70px}.logo{min-width:0;flex:1}.logo-text{font-size:12px}.logo-text small{font-size:8px}
      .main-nav{display:none;position:absolute;left:0;right:0;top:70px;background:var(--deep);padding:12px 16px 18px;border-bottom:1px solid var(--line);flex-direction:column;align-items:stretch}
      .main-nav.open{display:flex}.main-nav a{padding:12px 14px}.menu-toggle{display:block}
      .header-tools .download-btn{display:none}.search-toggle{font-size:0;width:40px;padding:0}.search-toggle:before{content:"⌕";font-size:22px}
      .sub-hero{padding:57px 0 55px}.sub-hero:after{font-size:52px;right:-5px}.sub-hero h1{font-size:42px}
      .section{padding:58px 0}.section-head{display:block}.section-intro{margin-top:12px}
      .game-row{grid-template-columns:72px 1fr auto}.row-cover{height:72px}.row-info p{display:none}
      .cta-inner{display:block}.cta .btn{margin-top:17px}.footer-grid{grid-template-columns:1fr 1fr;gap:28px}
    }
    @media(max-width:520px){
      .logo-mark{width:32px;height:32px}.logo-text{font-size:11px}.header-inner{gap:8px}
      .sub-hero h1{font-size:34px}.sub-hero p{font-size:16px}
      .hero-links .btn{width:100%}.filter-bar{align-items:flex-start}.filter-label{width:100%}
      .directory{grid-template-columns:1fr}.device-note{grid-template-columns:1fr}
      .feature-cover{height:205px}.cover-title{font-size:32px}.game-info{padding:19px}
      .game-row{grid-template-columns:62px 1fr}.row-cover{height:62px}.row-arrow{display:none}
      .footer-grid{grid-template-columns:1fr}.footer-bottom{display:block}.footer-bottom .notice{margin-top:7px}
    }

/* roulang page: category3 */
:root{
      --ink:#17191c;--deep:#202326;--panel:#292d30;--panel-2:#32373a;
      --paper:#f3f0e8;--cream:#fffdf7;--muted:#aeb2af;--line:rgba(255,255,255,.13);
      --line-dark:rgba(23,25,28,.14);--coral:#ff735d;--coral-dark:#db5545;
      --lime:#d9f45b;--mint:#9fe0c0;--radius:18px;--shadow:0 16px 34px rgba(0,0,0,.16);
      --container:1220px;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{margin:0;background:var(--ink);color:var(--cream);font-family:"Noto Sans SC","PingFang SC","Microsoft YaHei",Arial,sans-serif;font-size:16px;line-height:1.75}
    a{color:inherit;text-decoration:none}
    a:focus-visible,button:focus-visible,input:focus-visible{outline:3px solid var(--lime);outline-offset:3px}
    img{display:block;max-width:100%}
    button,input{font:inherit}
    button{cursor:pointer}
    button:disabled{cursor:not-allowed;opacity:.48}
    .container{width:min(var(--container),calc(100% - 48px));margin:0 auto}
    .site-header{position:sticky;top:0;z-index:30;background:rgba(23,25,28,.95);border-bottom:1px solid var(--line);backdrop-filter:blur(14px)}
    .header-inner{height:82px;display:flex;align-items:center;gap:28px}
    .logo{display:flex;align-items:center;gap:12px;min-width:310px}
    .logo-mark{width:38px;height:38px;background:var(--coral);border-radius:11px 11px 11px 4px;position:relative;flex:none}
    .logo-mark:before,.logo-mark:after{content:"";position:absolute;border-radius:50%;background:var(--lime)}
    .logo-mark:before{width:8px;height:8px;left:9px;top:9px}
    .logo-mark:after{width:8px;height:8px;right:8px;bottom:8px}
    .logo-text{font-size:15px;font-weight:800;line-height:1.28;letter-spacing:-.02em}
    .logo-text small{display:block;color:var(--mint);font-size:10px;font-family:monospace;letter-spacing:.14em;margin-top:4px}
    .main-nav{display:flex;align-items:center;gap:4px;flex:1}
    .main-nav a{padding:9px 11px;color:#c9cdca;font-size:14px;border-radius:9px;transition:.22s}
    .main-nav a:hover,.main-nav a.active{color:var(--ink);background:var(--lime)}
    .header-tools{display:flex;align-items:center;gap:9px}
    .search-toggle,.menu-toggle{border:1px solid var(--line);background:transparent;color:var(--cream);height:40px;border-radius:10px;padding:0 13px;transition:.2s}
    .search-toggle:hover,.menu-toggle:hover{border-color:var(--lime);color:var(--lime)}
    .download-btn,.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border:0;border-radius:11px;padding:12px 19px;font-weight:800;transition:.2s}
    .download-btn,.btn-primary{background:var(--coral);color:#fff}
    .download-btn:hover,.btn-primary:hover{background:var(--coral-dark);transform:translateY(-2px)}
    .btn-outline{border:1px solid rgba(255,255,255,.28);color:var(--cream);background:transparent}
    .btn-outline:hover{border-color:var(--lime);color:var(--lime);transform:translateY(-2px)}
    .menu-toggle{display:none}
    .search-panel{display:none;background:var(--panel);border-bottom:1px solid var(--line);padding:18px 0}
    .search-panel.open{display:block}
    .search-form{display:flex;max-width:620px;margin-left:auto;gap:10px}
    .search-form input{flex:1;background:var(--ink);border:1px solid var(--line);color:#fff;border-radius:10px;padding:11px 15px}
    .page-hero{padding:72px 0 62px;background:linear-gradient(110deg,var(--deep),#292d30);position:relative;overflow:hidden}
    .page-hero:after{content:"03";position:absolute;right:5%;bottom:-38px;color:rgba(217,244,91,.08);font:bold 190px/1 monospace}
    .hero-copy{position:relative;z-index:1;max-width:780px}
    .eyebrow,.section-kicker{color:var(--lime);font:700 12px/1.2 monospace;letter-spacing:.13em}
    .page-hero h1{font-size:clamp(36px,5vw,66px);line-height:1.12;letter-spacing:-.06em;margin:19px 0}
    .page-hero p{max-width:690px;color:#c8ccca;font-size:18px;margin:0}
    .hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px}
    .section{padding:78px 0}
    .section-light{background:var(--paper);color:var(--ink)}
    .section-head{display:flex;justify-content:space-between;align-items:end;gap:28px;margin-bottom:30px}
    .section h2{font-size:clamp(28px,3.5vw,44px);line-height:1.2;letter-spacing:-.045em;margin:10px 0}
    .section-intro{color:#69716d;max-width:590px}
    .path-layout{display:grid;grid-template-columns:1fr 1.15fr;gap:24px;align-items:stretch}
    .path-panel,.trial-panel{border:1px solid var(--line);border-radius:var(--radius);background:var(--panel);padding:30px}
    .path-panel{background:var(--lime);color:var(--ink)}
    .path-panel .section-kicker{color:#52610c}
    .path-panel h3{font-size:28px;line-height:1.3;margin:14px 0}
    .path-panel p{color:#53600f}
    .path-list{list-style:none;padding:0;margin:25px 0 0}
    .path-list li{display:flex;gap:14px;padding:15px 0;border-top:1px solid rgba(23,25,28,.18)}
    .step-no{font:bold 14px monospace;min-width:30px}
    .path-list strong{display:block;font-size:16px}
    .path-list span{display:block;color:#53600f;font-size:13px;margin-top:2px}
    .trial-panel{display:flex;flex-direction:column;justify-content:center;min-height:410px}
    .screen{height:205px;border:1px solid rgba(217,244,91,.35);border-radius:14px;background:repeating-linear-gradient(0deg,#202326 0 19px,#252a2c 20px),linear-gradient(135deg,#32373a,#17191c);position:relative;overflow:hidden;margin-bottom:23px}
    .screen:before{content:"PGSOFT / PLAY AREA";position:absolute;left:20px;top:18px;color:var(--mint);font:12px monospace;letter-spacing:.1em}
    .screen:after{content:"等待进入试玩界面";position:absolute;inset:0;display:grid;place-items:center;color:var(--cream);font-size:20px;font-weight:800}
    .screen-status{display:flex;align-items:center;gap:9px;color:var(--muted);font-size:13px}
    .status-dot{width:9px;height:9px;border-radius:50%;background:var(--mint);box-shadow:0 0 0 5px rgba(159,224,192,.12)}
    .status-dot.warn{background:var(--lime)}
    .feature-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
    .feature-card{background:var(--cream);border:1px solid var(--line-dark);border-radius:15px;padding:24px;transition:.22s}
    .feature-card:hover{transform:translateY(-4px);box-shadow:var(--shadow);border-color:var(--coral)}
    .feature-card .number{color:var(--coral);font:bold 18px monospace}
    .feature-card h3{font-size:21px;line-height:1.35;margin:12px 0 8px}
    .feature-card p{color:#69716d;font-size:14px;margin:0}
    .notice-band{background:#343a3a;border-left:4px solid var(--coral);border-radius:12px;padding:20px 24px;color:#d7dbd7}
    .notice-band strong{color:var(--lime);margin-right:8px}
    .compatibility{display:grid;grid-template-columns:1fr 1fr;gap:22px;margin-top:26px}
    .compat-card{padding:27px;background:var(--panel-2);border:1px solid var(--line);border-radius:15px}
    .compat-card h3{margin:0 0 8px;font-size:21px}
    .compat-card p{color:var(--muted);font-size:14px;margin:0}
    .state-row{display:flex;gap:10px;flex-wrap:wrap;margin-top:18px}
    .state{padding:6px 10px;border-radius:7px;background:rgba(159,224,192,.12);color:var(--mint);font-size:12px}
    .state.pending{background:rgba(217,244,91,.12);color:var(--lime)}
    .state.error{background:rgba(255,115,93,.13);color:#ffab9b}
    .faq-list{max-width:850px;margin:0 auto}
    .faq-item{border-bottom:1px solid var(--line);padding:20px 0}
    .faq-item summary{cursor:pointer;font-size:18px;font-weight:800;list-style:none;display:flex;justify-content:space-between;gap:20px}
    .faq-item summary::-webkit-details-marker{display:none}
    .faq-item summary:after{content:"+";color:var(--lime);font-size:25px;line-height:1}
    .faq-item[open] summary:after{content:"−";color:var(--coral)}
    .faq-item p{color:var(--muted);max-width:720px;margin:12px 0 0}
    .cta{padding:42px 0;background:var(--coral);color:#fff}
    .cta-inner{display:flex;justify-content:space-between;align-items:center;gap:28px}
    .cta h2{font-size:32px;line-height:1.25;margin:0 0 8px}
    .cta p{margin:0;color:#ffe5df}
    .cta .btn{background:var(--ink);color:#fff}
    .cta .btn:hover{background:#000;transform:translateY(-2px)}
    .site-footer{background:#111315;padding:58px 0 20px;border-top:1px solid var(--line)}
    .footer-grid{display:grid;grid-template-columns:1.4fr .8fr .8fr 1fr;gap:32px}
    .footer-brand strong{display:block;font-size:17px;line-height:1.45}
    .footer-brand p,.site-footer p{color:var(--muted);font-size:13px}
    .site-footer h3{font-size:15px;margin:0 0 13px;color:var(--lime)}
    .footer-links{display:flex;flex-direction:column;gap:7px}
    .footer-links a{color:#c9cdca;font-size:13px;transition:.2s}
    .footer-links a:hover{color:var(--coral)}
    .notice{color:#9da39f!important;font-size:12px!important}
    .footer-bottom{display:flex;justify-content:space-between;gap:20px;border-top:1px solid var(--line);margin-top:38px;padding-top:18px;color:#858c88;font-size:12px}
    @media(max-width:1024px){.header-inner{gap:15px}.logo{min-width:260px}.main-nav a{padding:8px 7px;font-size:13px}.path-layout{grid-template-columns:1fr 1fr}.footer-grid{grid-template-columns:1fr 1fr}}
    @media(max-width:768px){
      .container{width:min(var(--container),calc(100% - 32px))}
      .header-inner{height:72px}.logo{min-width:0;flex:1}.logo-text{font-size:12px}.logo-mark{width:34px;height:34px}
      .main-nav{display:none;position:absolute;top:72px;left:0;right:0;padding:12px 16px;background:var(--deep);border-bottom:1px solid var(--line);flex-direction:column;align-items:stretch}
      .main-nav.open{display:flex}.main-nav a{padding:12px 14px}.menu-toggle{display:block}
      .header-tools .download-btn{display:none}.search-toggle{font-size:0;padding:0 12px}.search-toggle:first-letter{font-size:16px}
      .page-hero{padding:56px 0 50px}.page-hero h1{font-size:clamp(34px,10vw,52px)}
      .path-layout,.compatibility{grid-template-columns:1fr}.feature-grid{grid-template-columns:1fr}
      .section{padding:58px 0}.section-head{display:block}.section-intro{margin-top:12px}
      .cta-inner{display:block}.cta .btn{margin-top:20px}.footer-grid{grid-template-columns:1fr 1fr}
    }
    @media(max-width:480px){
      .container{width:calc(100% - 24px)}.logo-text{max-width:220px}.logo-text small{font-size:8px}
      .header-tools{gap:5px}.menu-toggle{padding:0 10px}.page-hero p{font-size:16px}
      .path-panel,.trial-panel,.compat-card,.feature-card{padding:21px}.screen{height:175px}
      .footer-grid{grid-template-columns:1fr}.footer-bottom{display:block}.footer-bottom .notice{margin-top:8px}
      .hero-actions .btn{width:100%}.cta h2{font-size:27px}
    }

/* roulang page: category4 */
:root{
      --ink:#17191c;--deep:#202326;--panel:#292d30;--panel-2:#32373a;
      --paper:#f3f0e8;--cream:#fffdf7;--muted:#aeb2af;--line:rgba(255,255,255,.13);
      --line-dark:rgba(23,25,28,.14);--coral:#ff735d;--coral-dark:#db5545;
      --lime:#d9f45b;--mint:#9fe0c0;--radius:18px;--shadow:0 16px 34px rgba(0,0,0,.16);
      --container:1220px
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{margin:0;background:var(--ink);color:var(--cream);font-family:"Noto Sans SC","PingFang SC","Microsoft YaHei",Arial,sans-serif;font-size:16px;line-height:1.75}
    a{color:inherit;text-decoration:none}
    img{display:block;max-width:100%}
    button,input{font:inherit}button{cursor:pointer}button:disabled{cursor:not-allowed;opacity:.48}
    :focus-visible{outline:3px solid var(--lime);outline-offset:3px}
    .container{width:min(var(--container),calc(100% - 48px));margin:0 auto}
    .site-header{position:sticky;top:0;z-index:30;background:rgba(23,25,28,.95);border-bottom:1px solid var(--line);backdrop-filter:blur(14px)}
    .header-inner{height:82px;display:flex;align-items:center;gap:28px}
    .logo{display:flex;align-items:center;gap:12px;min-width:310px}
    .logo-mark{width:38px;height:38px;background:var(--coral);border-radius:11px 11px 11px 4px;position:relative;flex:none}
    .logo-mark:before,.logo-mark:after{content:"";position:absolute;border-radius:50%;background:var(--lime)}
    .logo-mark:before{width:8px;height:8px;left:9px;top:9px}.logo-mark:after{width:8px;height:8px;right:8px;bottom:8px}
    .logo-text{font-size:15px;font-weight:800;line-height:1.28;letter-spacing:-.02em}
    .logo-text small{display:block;color:var(--mint);font-size:10px;font-family:monospace;letter-spacing:.14em;margin-top:4px}
    .main-nav{display:flex;align-items:center;gap:4px;flex:1}
    .main-nav a{padding:9px 11px;color:#c9cdca;font-size:14px;border-radius:9px;transition:.22s}
    .main-nav a:hover,.main-nav a.active{color:var(--ink);background:var(--lime)}
    .header-tools{display:flex;align-items:center;gap:9px}
    .search-toggle,.menu-toggle{border:1px solid var(--line);background:transparent;color:var(--cream);height:40px;border-radius:10px;padding:0 13px;transition:.2s}
    .search-toggle:hover,.menu-toggle:hover{border-color:var(--lime);color:var(--lime)}
    .download-btn,.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border:0;border-radius:11px;padding:12px 19px;font-weight:800;transition:.2s}
    .download-btn,.btn-primary{background:var(--coral);color:#fff}
    .download-btn:hover,.btn-primary:hover{background:var(--coral-dark);transform:translateY(-2px)}
    .btn-outline{border:1px solid rgba(255,255,255,.28);color:var(--cream);background:transparent}
    .btn-outline:hover{border-color:var(--lime);color:var(--lime);transform:translateY(-2px)}
    .menu-toggle{display:none}
    .search-panel{display:none;background:var(--panel);border-bottom:1px solid var(--line);padding:18px 0}
    .search-panel.open{display:block}.search-form{display:flex;max-width:620px;margin-left:auto;gap:10px}
    .search-form input{flex:1;background:var(--ink);border:1px solid var(--line);color:#fff;border-radius:10px;padding:11px 15px}
    .hero{position:relative;overflow:hidden;padding:76px 0 68px;background:linear-gradient(115deg,#202326 0%,#292d30 65%,#343a38 100%)}
    .hero:before{content:"04 / NEWS";position:absolute;right:5%;top:38px;color:rgba(217,244,91,.2);font:700 76px monospace;letter-spacing:-.08em}
    .hero:after{content:"";position:absolute;right:9%;bottom:-100px;width:240px;height:240px;border:1px solid rgba(217,244,91,.28);transform:rotate(38deg);border-radius:34px}
    .hero-inner{position:relative;z-index:1;max-width:850px}
    .eyebrow,.section-kicker{color:var(--lime);font:700 12px/1.2 monospace;letter-spacing:.13em;text-transform:uppercase}
    .hero h1{font-size:clamp(36px,5vw,66px);line-height:1.12;letter-spacing:-.06em;margin:19px 0 21px}
    .hero-copy{color:#c9cdca;font-size:18px;max-width:720px;margin:0}
    .hero-meta{display:flex;gap:10px;flex-wrap:wrap;margin-top:29px}
    .badge{display:inline-flex;align-items:center;border-radius:7px;padding:5px 10px;font-size:12px;font-weight:800;background:var(--lime);color:var(--ink)}
    .badge.dark{background:rgba(255,255,255,.09);color:var(--mint);border:1px solid var(--line)}
    .section{padding:76px 0}.section-light{background:var(--paper);color:var(--ink)}
    .section-head{display:flex;justify-content:space-between;align-items:end;gap:30px;margin-bottom:30px}
    .section h2{font-size:clamp(28px,3vw,43px);line-height:1.2;letter-spacing:-.045em;margin:10px 0 0}
    .section-intro{color:#69716d;max-width:570px;margin:0}
    .filter-bar{display:flex;flex-wrap:wrap;gap:9px;padding:14px;background:#e7e3d9;border:1px solid var(--line-dark);border-radius:14px;margin-bottom:28px}
    .filter{border:1px solid transparent;background:transparent;color:#56605a;border-radius:9px;padding:8px 14px;font-weight:700;font-size:14px;transition:.2s}
    .filter:hover,.filter.active{background:var(--ink);color:var(--lime)}
    .news-layout{display:grid;grid-template-columns:1.08fr .92fr;gap:20px;align-items:stretch}
    .focus-card,.news-item{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;transition:.22s}
    .focus-card:hover,.news-item:hover{transform:translateY(-4px);border-color:rgba(217,244,91,.58);box-shadow:var(--shadow)}
    .focus-visual{height:270px;padding:25px;background:linear-gradient(135deg,#3b4140,#202326);position:relative;display:flex;align-items:end}
    .focus-visual:before{content:"PG / UPDATE";position:absolute;top:22px;right:22px;color:var(--lime);font:700 12px monospace}
    .focus-visual:after{content:"";position:absolute;inset:28px;border:1px solid rgba(159,224,192,.25);border-radius:12px;transform:skewY(-7deg);pointer-events:none}
    .visual-title{font-size:38px;line-height:1.1;font-weight:900;max-width:300px;position:relative;z-index:1}
    .card-body{padding:24px}.card-meta{display:flex;gap:12px;flex-wrap:wrap;color:var(--mint);font-size:12px;margin-bottom:10px}
    .card-body h3{font-size:24px;line-height:1.35;margin:0 0 10px}.card-body p{color:var(--muted);font-size:14px;margin:0 0 19px}
    .news-list{display:flex;flex-direction:column;gap:10px}
    .news-item{display:grid;grid-template-columns:88px 1fr;gap:15px;padding:17px 18px}
    .news-date{color:var(--lime);font:700 13px/1.35 monospace;border-right:1px solid var(--line);padding-right:13px}
    .news-item h3{font-size:16px;line-height:1.45;margin:0 0 4px}.news-item p{font-size:12px;color:var(--muted);margin:0;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
    .index-strip{display:grid;grid-template-columns:repeat(4,1fr);gap:1px;background:var(--line-dark);border:1px solid var(--line-dark);margin-top:26px}
    .index-cell{padding:19px 20px;background:var(--cream);min-height:116px;transition:.2s}.index-cell:hover{background:#fff}
    .index-cell strong{display:block;font:700 27px monospace;color:var(--coral-dark);margin-bottom:4px}.index-cell span{font-size:14px;color:#59625c}
    .timeline{display:grid;grid-template-columns:repeat(4,1fr);gap:0;border-top:1px solid var(--line-dark);margin-top:34px}
    .timeline-step{position:relative;padding:25px 22px 8px 0}.timeline-step:not(:last-child){border-right:1px solid var(--line-dark);padding-right:24px;margin-right:24px}
    .step-num{color:var(--coral-dark);font:700 13px monospace}.timeline-step h3{font-size:19px;margin:10px 0 5px}.timeline-step p{color:#69716d;font-size:14px;margin:0}
    .status-section{background:var(--deep);padding:60px 0}.status-grid{display:grid;grid-template-columns:1fr 1fr;gap:20px}
    .status-box{padding:23px;border:1px solid var(--line);border-radius:14px;background:var(--panel)}
    .status-box h3{font-size:19px;margin:0 0 8px}.status-box p{color:var(--muted);font-size:14px;margin:0}.status-line{display:flex;align-items:center;gap:8px;color:var(--mint);font-size:13px;margin-bottom:10px}.dot{width:8px;height:8px;border-radius:50%;background:var(--mint);box-shadow:0 0 0 4px rgba(159,224,192,.12)}
    .faq{display:grid;grid-template-columns:.75fr 1.25fr;gap:60px}.faq-list{border-top:1px solid var(--line-dark)}
    details{border-bottom:1px solid var(--line-dark);padding:17px 0}summary{cursor:pointer;font-weight:800;list-style:none;display:flex;justify-content:space-between;gap:18px}
    summary:after{content:"＋";color:var(--coral-dark);font-size:20px;line-height:1}details[open] summary:after{content:"－"}details p{color:#69716d;font-size:14px;margin:12px 30px 3px 0}
    .cta{padding:48px 0;background:var(--coral);color:#fff}.cta-inner{display:flex;align-items:center;justify-content:space-between;gap:25px}.cta h2{font-size:clamp(25px,3vw,38px);line-height:1.2;margin:0 0 7px}.cta p{margin:0;color:#ffe5df}.cta .btn{background:var(--ink);color:#fff}
    .site-footer{background:#111315;padding:57px 0 24px;border-top:1px solid var(--line)}
    .footer-grid{display:grid;grid-template-columns:1.5fr .8fr .8fr 1fr;gap:35px}.footer-brand strong{display:block;max-width:330px;font-size:17px;line-height:1.45}.footer-brand p,.notice{color:var(--muted);font-size:13px}
    .site-footer h3{font-size:14px;color:var(--lime);margin:0 0 13px}.footer-links{display:flex;flex-direction:column;gap:7px}.footer-links a{color:#c7cbc8;font-size:13px;transition:.2s}.footer-links a:hover{color:var(--coral)}
    .footer-bottom{display:flex;justify-content:space-between;gap:20px;border-top:1px solid var(--line);margin-top:40px;padding-top:18px;color:#858b87;font-size:12px}
    .empty-state,.loading-state,.error-state{display:none;padding:24px;border:1px dashed var(--line-dark);border-radius:14px;color:#69716d;background:rgba(255,255,255,.28)}
    .empty-state.show,.loading-state.show,.error-state.show{display:block}
    @media(max-width:1024px){.logo{min-width:250px}.main-nav a{padding:8px 7px;font-size:13px}.header-inner{gap:14px}.news-layout,.faq{grid-template-columns:1fr}.footer-grid{grid-template-columns:1.2fr 1fr 1fr}}
    @media(max-width:768px){
      .container{width:min(var(--container),calc(100% - 32px))}.header-inner{height:72px}.logo{min-width:0;flex:1}.logo-text{font-size:12px}.logo-text small{font-size:8px}.main-nav{display:none;position:absolute;top:72px;left:0;right:0;padding:13px 16px;background:var(--deep);border-bottom:1px solid var(--line);flex-direction:column;align-items:stretch}.main-nav.open{display:flex}.main-nav a{padding:11px 13px}.menu-toggle{display:block}.header-tools .search-toggle{font-size:0;padding:0;width:40px}.header-tools .search-toggle:first-letter{font-size:16px}.download-btn{padding:9px 11px;font-size:13px}.hero{padding:58px 0}.hero:before{font-size:48px;top:25px}.hero h1{font-size:42px}.section{padding:58px 0}.section-head{display:block}.section-intro{margin-top:13px}.index-strip{grid-template-columns:repeat(2,1fr)}.timeline{grid-template-columns:1fr 1fr;gap:12px}.timeline-step:not(:last-child){border-right:0;margin-right:0;padding-right:10px}.status-grid{grid-template-columns:1fr}.faq{gap:30px}.cta-inner{display:block}.cta .btn{margin-top:20px}.footer-grid{grid-template-columns:1fr 1fr}.footer-brand{grid-column:1/-1}}
    @media(max-width:480px){
      .container{width:calc(100% - 28px)}.header-tools{gap:5px}.header-tools .download-btn{display:none}.logo-mark{width:32px;height:32px}.logo-text{max-width:205px}.hero h1{font-size:35px}.hero-copy{font-size:16px}.hero-meta{margin-top:22px}.section h2{font-size:29px}.filter-bar{padding:9px}.filter{padding:7px 9px;font-size:13px}.focus-visual{height:210px}.visual-title{font-size:30px}.card-body{padding:19px}.news-item{grid-template-columns:72px 1fr;padding:14px}.news-item p{white-space:normal}.index-strip{grid-template-columns:1fr 1fr}.index-cell{padding:15px 13px;min-height:100px}.index-cell strong{font-size:22px}.timeline{grid-template-columns:1fr}.timeline-step{padding:18px 0!important;border-bottom:1px solid var(--line-dark)!important}.footer-grid{grid-template-columns:1fr}.footer-bottom{display:block}.footer-bottom .notice{margin-top:7px}}

/* roulang page: category5 */
:root{
      --ink:#17191c;--deep:#202326;--panel:#292d30;--panel-2:#32373a;
      --paper:#f3f0e8;--cream:#fffdf7;--muted:#aeb2af;--line:rgba(255,255,255,.13);
      --line-dark:rgba(23,25,28,.14);--coral:#ff735d;--coral-dark:#db5545;
      --lime:#d9f45b;--mint:#9fe0c0;--radius:18px;--shadow:0 16px 34px rgba(0,0,0,.16);
      --container:1220px;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{margin:0;background:var(--ink);color:var(--cream);font-family:"Noto Sans SC","PingFang SC","Microsoft YaHei",Arial,sans-serif;font-size:16px;line-height:1.75}
    a{color:inherit;text-decoration:none}
    a:focus-visible,button:focus-visible,input:focus-visible{outline:3px solid var(--lime);outline-offset:3px}
    img{display:block;max-width:100%}
    button,input{font:inherit}button{cursor:pointer}button:disabled{cursor:not-allowed;opacity:.48}
    .container{width:min(var(--container),calc(100% - 48px));margin:0 auto}
    .site-header{position:sticky;top:0;z-index:30;background:rgba(23,25,28,.95);border-bottom:1px solid var(--line);backdrop-filter:blur(14px)}
    .header-inner{height:82px;display:flex;align-items:center;gap:28px}
    .logo{display:flex;align-items:center;gap:12px;min-width:310px}
    .logo-mark{width:38px;height:38px;background:var(--coral);border-radius:11px 11px 11px 4px;position:relative;flex:none}
    .logo-mark:before,.logo-mark:after{content:"";position:absolute;border-radius:50%;background:var(--lime)}
    .logo-mark:before{width:8px;height:8px;left:9px;top:9px}.logo-mark:after{width:8px;height:8px;right:8px;bottom:8px}
    .logo-text{font-size:15px;font-weight:800;line-height:1.28;letter-spacing:-.02em}
    .logo-text small{display:block;color:var(--mint);font-size:10px;font-family:monospace;letter-spacing:.14em;margin-top:4px}
    .main-nav{display:flex;align-items:center;gap:4px;flex:1}
    .main-nav a{padding:9px 11px;color:#c9cdca;font-size:14px;border-radius:9px;transition:.22s}
    .main-nav a:hover,.main-nav a.active{color:var(--ink);background:var(--lime)}
    .header-tools{display:flex;align-items:center;gap:9px}
    .search-toggle,.menu-toggle{border:1px solid var(--line);background:transparent;color:var(--cream);height:40px;border-radius:10px;padding:0 13px;transition:.2s}
    .search-toggle:hover,.menu-toggle:hover{border-color:var(--lime);color:var(--lime)}
    .download-btn,.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border:0;border-radius:11px;padding:12px 19px;font-weight:800;transition:.2s}
    .download-btn,.btn-primary{background:var(--coral);color:#fff}
    .download-btn:hover,.btn-primary:hover{background:var(--coral-dark);transform:translateY(-2px)}
    .btn-outline{border:1px solid rgba(255,255,255,.28);color:var(--cream);background:transparent}
    .btn-outline:hover{border-color:var(--lime);color:var(--lime);transform:translateY(-2px)}
    .menu-toggle{display:none}
    .search-panel{display:none;background:var(--panel);border-bottom:1px solid var(--line);padding:18px 0}
    .search-panel.open{display:block}.search-form{display:flex;max-width:620px;margin-left:auto;gap:10px}
    .search-form input{flex:1;background:var(--ink);border:1px solid var(--line);color:#fff;border-radius:10px;padding:11px 15px}
    .page-hero{padding:76px 0 66px;background:linear-gradient(115deg,var(--deep),#272b2d 65%,#343a36);position:relative;overflow:hidden}
    .page-hero:after{content:"APP / 05";position:absolute;right:5%;bottom:20px;color:rgba(217,244,91,.14);font:900 80px/1 monospace;letter-spacing:-.08em}
    .eyebrow,.section-kicker{color:var(--lime);font:700 12px/1.2 monospace;letter-spacing:.13em;text-transform:uppercase}
    .page-hero h1{font-size:clamp(36px,5vw,64px);line-height:1.12;letter-spacing:-.055em;max-width:760px;margin:18px 0}
    .hero-copy{font-size:18px;color:#c8ccca;max-width:690px;margin:0}
    .breadcrumb{display:flex;gap:10px;align-items:center;color:var(--muted);font-size:13px;margin-bottom:26px}
    .breadcrumb a:hover{color:var(--lime)}.breadcrumb span{color:#66706b}
    .section{padding:78px 0}.section-light{background:var(--paper);color:var(--ink)}
    .section-head{display:flex;justify-content:space-between;align-items:end;gap:30px;margin-bottom:32px}
    .section h2{font-size:clamp(28px,3vw,42px);line-height:1.22;letter-spacing:-.04em;margin:10px 0}
    .section-intro{color:#69716d;max-width:600px}
    .download-layout{display:grid;grid-template-columns:1.05fr .95fr;gap:24px;align-items:stretch}
    .device-stage{min-height:430px;background:var(--mint);border-radius:var(--radius);position:relative;overflow:hidden;color:var(--ink);display:flex;align-items:center;justify-content:center}
    .device-stage:before{content:"";position:absolute;inset:0;background:repeating-linear-gradient(0deg,transparent 0 25px,rgba(23,25,28,.08) 26px),repeating-linear-gradient(90deg,transparent 0 25px,rgba(23,25,28,.08) 26px)}
    .phone{width:205px;height:365px;background:var(--ink);border:8px solid #343a38;border-radius:30px;position:relative;z-index:1;box-shadow:0 18px 30px rgba(0,0,0,.2);padding:28px 14px 14px}
    .phone:before{content:"";width:66px;height:6px;background:#555d57;border-radius:10px;position:absolute;top:12px;left:calc(50% - 33px)}
    .phone-screen{height:100%;border-radius:17px;background:#292d30;padding:14px;color:var(--cream)}
    .screen-line{height:11px;background:var(--coral);border-radius:5px;margin-bottom:13px}.screen-line.short{width:55%;background:var(--lime)}
    .screen-tile{height:90px;border-radius:11px;background:#444b4b;margin:12px 0;padding:12px;font-size:12px;color:var(--mint)}
    .stage-label{position:absolute;left:28px;top:26px;font:800 12px monospace;letter-spacing:.12em}
    .download-panel{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);padding:32px}
    .download-panel h2{font-size:32px;line-height:1.25;margin:0 0 12px}
    .download-panel>p{color:var(--muted);margin-bottom:25px}
    .platform-list{display:grid;gap:12px;margin:22px 0}
    .platform{display:flex;align-items:center;justify-content:space-between;gap:15px;padding:17px 18px;border:1px solid var(--line);border-radius:13px;background:rgba(255,255,255,.035);transition:.2s}
    .platform:hover{border-color:var(--lime);transform:translateX(3px)}
    .platform strong{display:block;font-size:16px}.platform small{color:var(--muted);font-size:12px}
    .status{font-size:12px;font-weight:800;padding:4px 8px;border-radius:6px;background:var(--mint);color:#1e4938;white-space:nowrap}
    .status.pending{background:var(--lime);color:#47520d}.status.offline{background:#4a5050;color:#d0d4d0}
    .meta-strip{display:grid;grid-template-columns:repeat(3,1fr);gap:10px;margin-top:22px}
    .meta-box{border-top:1px solid var(--line);padding-top:12px}.meta-box b{display:block;font:700 16px monospace;color:var(--lime)}.meta-box span{color:var(--muted);font-size:12px}
    .notice-box{border-left:4px solid var(--coral);background:#34393a;padding:15px 17px;color:#d5d8d4;font-size:13px;margin-top:20px}
    .info-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:24px}
    .paper-card{background:var(--cream);border:1px solid var(--line-dark);border-radius:var(--radius);padding:30px;box-shadow:0 8px 22px rgba(23,25,28,.05)}
    .paper-card h3{font-size:24px;line-height:1.3;margin:0 0 18px}.paper-card p{color:#65706a}
    .steps{display:grid;gap:0}.step{display:grid;grid-template-columns:50px 1fr;gap:18px;padding:0 0 26px;position:relative}
    .step:not(:last-child):after{content:"";position:absolute;left:24px;top:48px;bottom:0;border-left:1px dashed #9ca79f}
    .step-num{width:48px;height:48px;border-radius:14px;background:var(--ink);color:var(--lime);display:grid;place-items:center;font:800 15px monospace;position:relative;z-index:1}
    .step h3{font-size:18px;margin:2px 0 4px}.step p{margin:0;color:#69716d;font-size:14px}
    .check-list{padding:0;margin:0;list-style:none}.check-list li{padding:12px 0 12px 28px;border-bottom:1px solid var(--line-dark);position:relative;color:#59635e}
    .check-list li:before{content:"✓";position:absolute;left:0;color:var(--coral);font-weight:900}
    .faq-list{display:grid;gap:10px;max-width:900px}.faq-item{border:1px solid var(--line);border-radius:13px;background:var(--panel);overflow:hidden}
    .faq-item summary{cursor:pointer;padding:18px 21px;font-weight:800;list-style:none}.faq-item summary::-webkit-details-marker{display:none}
    .faq-item summary:after{content:"＋";float:right;color:var(--lime);font-size:20px}.faq-item[open] summary:after{content:"－"}
    .faq-answer{padding:0 21px 19px;color:var(--muted);font-size:14px;border-top:1px solid var(--line)}
    .cta{background:var(--coral);color:#fff;padding:34px 0}.cta-inner{display:flex;align-items:center;justify-content:space-between;gap:24px}.cta h2{font-size:30px;margin:0 0 5px;line-height:1.25}.cta p{margin:0;color:#ffe4df}
    .cta .btn{background:var(--ink)}.cta .btn:hover{background:#000;transform:translateY(-2px)}
    .site-footer{background:#111315;padding:58px 0 22px;border-top:1px solid var(--line)}
    .footer-grid{display:grid;grid-template-columns:1.5fr .8fr .8fr 1fr;gap:35px}.footer-brand strong{display:block;font-size:16px;line-height:1.5;max-width:330px}.footer-grid h3{font-size:15px;color:var(--lime);margin:0 0 14px}.footer-brand p,.notice{color:var(--muted);font-size:13px}
    .footer-links{display:grid;gap:8px;color:#c8ccca;font-size:14px}.footer-links a:hover{color:var(--coral)}
    .footer-bottom{display:flex;justify-content:space-between;gap:20px;border-top:1px solid var(--line);margin-top:38px;padding-top:17px;color:#7f8782;font-size:12px}
    .empty-state{border:1px dashed #87918b;border-radius:14px;padding:20px;color:#69716d;background:rgba(255,255,255,.28);font-size:14px}
    .state-row{display:flex;flex-wrap:wrap;gap:10px;margin-top:20px}.state-chip{padding:7px 10px;border-radius:8px;background:#e4e1d8;color:#626b66;font-size:12px}
    @media(max-width:1050px){.header-inner{gap:14px}.logo{min-width:260px}.main-nav a{padding:8px 7px;font-size:13px}.download-layout,.info-grid{grid-template-columns:1fr}.footer-grid{grid-template-columns:1.3fr 1fr 1fr}}
    @media(max-width:768px){.container{width:min(100% - 32px,var(--container))}.header-inner{height:72px}.logo{min-width:0;flex:1}.logo-text{font-size:12px}.logo-text small{font-size:8px}.main-nav{display:none;position:absolute;left:16px;right:16px;top:70px;background:var(--panel);padding:12px;border:1px solid var(--line);border-radius:14px;flex-direction:column;align-items:stretch}.main-nav.open{display:flex}.main-nav a{padding:12px}.menu-toggle{display:block}.header-tools .download-btn{display:none}.search-toggle{padding:0 10px;font-size:0}.search-toggle:before{content:"⌕";font-size:21px}.page-hero{padding:56px 0}.page-hero h1{font-size:40px}.section{padding:58px 0}.section-head,.cta-inner{display:block}.section-head .section-intro{margin-top:12px}.footer-grid{grid-template-columns:1fr 1fr;gap:28px}.footer-brand{grid-column:1/-1}.cta .btn{margin-top:20px}.device-stage{min-height:360px}}
    @media(max-width:480px){.container{width:calc(100% - 28px)}.logo-mark{width:32px;height:32px}.logo-text{font-size:11px}.page-hero h1{font-size:33px}.hero-copy{font-size:16px}.download-panel,.paper-card{padding:22px}.download-panel h2{font-size:27px}.phone{transform:scale(.86)}.meta-strip{grid-template-columns:1fr}.footer-grid{grid-template-columns:1fr}.footer-bottom{display:block}.footer-bottom .notice{margin-top:8px}.btn,.download-btn{width:100%;padding:13px 16px}.platform{align-items:flex-start}.stage-label{left:18px}}

/* roulang page: category6 */
:root{
      --ink:#17191c;
      --deep:#202326;
      --panel:#292d30;
      --panel-2:#32373a;
      --paper:#f3f0e8;
      --cream:#fffdf7;
      --muted:#aeb2af;
      --line:rgba(255,255,255,.13);
      --line-dark:rgba(23,25,28,.14);
      --coral:#ff735d;
      --coral-dark:#db5545;
      --lime:#d9f45b;
      --mint:#9fe0c0;
      --radius:18px;
      --shadow:0 16px 34px rgba(0,0,0,.16);
      --container:1220px;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{margin:0;background:var(--ink);color:var(--cream);font-family:"Noto Sans SC","PingFang SC","Microsoft YaHei",Arial,sans-serif;font-size:16px;line-height:1.75}
    a{color:inherit;text-decoration:none}
    img{display:block;max-width:100%}
    button,input{font:inherit}
    button{cursor:pointer}
    button:disabled{cursor:not-allowed;opacity:.48}
    :focus-visible{outline:3px solid var(--lime);outline-offset:3px}
    .container{width:min(var(--container),calc(100% - 48px));margin:0 auto}
    .site-header{position:sticky;top:0;z-index:30;background:rgba(23,25,28,.95);border-bottom:1px solid var(--line);backdrop-filter:blur(14px)}
    .header-inner{min-height:82px;display:flex;align-items:center;gap:28px}
    .logo{display:flex;align-items:center;gap:12px;min-width:310px}
    .logo-mark{width:38px;height:38px;background:var(--coral);border-radius:11px 11px 11px 4px;position:relative;flex:none}
    .logo-mark:before,.logo-mark:after{content:"";position:absolute;border-radius:50%;background:var(--lime)}
    .logo-mark:before{width:8px;height:8px;left:9px;top:9px}
    .logo-mark:after{width:8px;height:8px;right:8px;bottom:8px}
    .logo-text{font-size:15px;font-weight:800;line-height:1.28;letter-spacing:-.02em}
    .logo-text small{display:block;color:var(--mint);font-size:10px;font-family:monospace;letter-spacing:.14em;margin-top:4px}
    .main-nav{display:flex;align-items:center;gap:4px;flex:1}
    .main-nav a{padding:9px 11px;color:#c9cdca;font-size:14px;border-radius:9px;transition:.22s}
    .main-nav a:hover,.main-nav a.active{color:var(--ink);background:var(--lime)}
    .header-tools{display:flex;align-items:center;gap:9px}
    .search-toggle,.menu-toggle{border:1px solid var(--line);background:transparent;color:var(--cream);height:40px;border-radius:10px;padding:0 13px;transition:.2s}
    .search-toggle:hover,.menu-toggle:hover{border-color:var(--lime);color:var(--lime)}
    .download-btn,.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border:0;border-radius:11px;padding:12px 19px;font-weight:800;transition:.2s}
    .download-btn,.btn-primary{background:var(--coral);color:#fff}
    .download-btn:hover,.btn-primary:hover{background:var(--coral-dark);transform:translateY(-2px)}
    .btn-outline{border:1px solid rgba(255,255,255,.28);color:var(--cream);background:transparent}
    .btn-outline:hover{border-color:var(--lime);color:var(--lime);transform:translateY(-2px)}
    .menu-toggle{display:none}
    .search-panel{display:none;background:var(--panel);border-bottom:1px solid var(--line);padding:18px 0}
    .search-panel.open{display:block}
    .search-form{display:flex;max-width:620px;margin-left:auto;gap:10px}
    .search-form input{flex:1;background:var(--ink);border:1px solid var(--line);color:#fff;border-radius:10px;padding:11px 15px}
    .guide-hero{background:var(--deep);padding:72px 0 64px;border-bottom:1px solid var(--line);position:relative;overflow:hidden}
    .guide-hero:after{content:"06";position:absolute;right:5%;bottom:-42px;color:rgba(217,244,91,.08);font:900 190px/1 monospace}
    .eyebrow,.section-kicker{color:var(--lime);font:700 12px/1.2 monospace;letter-spacing:.13em;text-transform:uppercase}
    .guide-hero h1{max-width:820px;font-size:clamp(36px,5vw,68px);line-height:1.13;letter-spacing:-.06em;margin:18px 0}
    .guide-hero p{max-width:720px;color:#c8ccca;font-size:18px;margin:0}
    .crumbs{display:flex;gap:10px;align-items:center;color:var(--muted);font-size:13px;margin-bottom:25px}
    .crumbs a:hover{color:var(--lime)}
    .guide-layout{display:grid;grid-template-columns:280px minmax(0,1fr);gap:54px;align-items:start}
    .section{padding:78px 0}
    .section-light{background:var(--paper);color:var(--ink)}
    .section h2{font-size:clamp(28px,3vw,43px);line-height:1.2;letter-spacing:-.045em;margin:10px 0 14px}
    .section-intro{color:#69716d;max-width:650px}
    .toc{position:sticky;top:108px;background:var(--panel);border:1px solid var(--line);border-radius:16px;padding:22px}
    .toc h2{font-size:18px;margin:0 0 13px;color:var(--cream)}
    .toc a{display:flex;gap:10px;color:#c9cdca;padding:10px 0;border-bottom:1px solid var(--line);font-size:14px;transition:.2s}
    .toc a:last-child{border-bottom:0}
    .toc a span{color:var(--lime);font-family:monospace}
    .toc a:hover{color:var(--lime);padding-left:5px}
    .guide-content{min-width:0}
    .guide-content section{scroll-margin-top:110px;margin-bottom:58px}
    .guide-content h2{color:var(--cream);margin-top:0}
    .guide-content h3{font-size:21px;line-height:1.35;margin:25px 0 8px}
    .guide-content p{color:#c5c9c6;max-width:760px}
    .step-list{border-left:2px solid rgba(217,244,91,.45);margin:28px 0 0 14px;padding-left:27px}
    .step{position:relative;padding:0 0 27px}
    .step:last-child{padding-bottom:0}
    .step:before{content:"";position:absolute;width:13px;height:13px;border-radius:50%;background:var(--coral);border:3px solid var(--deep);left:-35px;top:7px;box-shadow:0 0 0 1px var(--coral)}
    .step-number{color:var(--lime);font:700 12px monospace;letter-spacing:.08em}
    .step h3{margin:5px 0 5px}
    .step p{margin:0;font-size:15px}
    .info-strip{display:grid;grid-template-columns:repeat(3,1fr);gap:14px;margin-top:27px}
    .info-box{background:var(--panel-2);border:1px solid var(--line);border-radius:14px;padding:20px}
    .info-box strong{display:block;color:var(--mint);font-size:18px;margin-bottom:5px}
    .info-box span{display:block;color:var(--muted);font-size:13px}
    .guide-panel{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);padding:28px}
    .guide-panel:hover{border-color:rgba(217,244,91,.5)}
    .notice-box{border-left:4px solid var(--coral);background:rgba(255,115,93,.08);padding:18px 20px;margin-top:22px;color:#e1e3df}
    .notice-box strong{color:var(--coral);display:block;margin-bottom:3px}
    .light-card{background:var(--cream);border:1px solid var(--line-dark);border-radius:15px;padding:23px;height:100%;transition:.2s}
    .light-card:hover{transform:translateY(-3px);box-shadow:var(--shadow)}
    .light-card h3{font-size:20px;margin:10px 0 7px}
    .light-card p{color:#69716d;font-size:14px;margin:0}
    .tag{display:inline-flex;padding:4px 9px;border-radius:6px;background:var(--lime);color:var(--ink);font-size:11px;font-weight:900}
    .faq-list{max-width:820px;margin-top:26px}
    .faq-item{border-top:1px solid var(--line-dark)}
    .faq-item:last-child{border-bottom:1px solid var(--line-dark)}
    .faq-question{width:100%;display:flex;justify-content:space-between;gap:20px;padding:18px 0;background:transparent;border:0;text-align:left;color:var(--ink);font-weight:800}
    .faq-question span:last-child{color:var(--coral);font-size:23px;line-height:1}
    .faq-answer{display:none;color:#69716d;padding:0 35px 18px 0;font-size:14px}
    .faq-item.open .faq-answer{display:block}
    .cta{padding:42px 0;background:var(--coral);color:#fff}
    .cta-inner{display:flex;justify-content:space-between;align-items:center;gap:28px}
    .cta h2{font-size:clamp(25px,3vw,38px);line-height:1.2;margin:0 0 7px}
    .cta p{margin:0;color:#ffe5df}
    .cta .btn{background:var(--ink);color:#fff}
    .cta .btn:hover{background:#000;transform:translateY(-2px)}
    .site-footer{background:var(--deep);padding:58px 0 24px;border-top:1px solid var(--line)}
    .footer-grid{display:grid;grid-template-columns:1.35fr .8fr .8fr 1fr;gap:35px}
    .footer-brand strong{display:block;font-size:16px;line-height:1.45;margin-bottom:12px}
    .footer-brand p,.notice{color:var(--muted);font-size:13px}
    .site-footer h3{font-size:14px;color:var(--lime);margin:0 0 13px}
    .footer-links{display:flex;flex-direction:column;gap:8px}
    .footer-links a{color:#c9cdca;font-size:13px;transition:.2s}
    .footer-links a:hover{color:var(--coral);padding-left:4px}
    .footer-bottom{border-top:1px solid var(--line);margin-top:38px;padding-top:18px;display:flex;justify-content:space-between;gap:20px;font-size:12px;color:#858b87}
    .empty-state{padding:22px;border:1px dashed rgba(255,255,255,.25);border-radius:12px;color:var(--muted);font-size:14px}
    @media(max-width:1024px){
      .header-inner{gap:14px}.logo{min-width:255px}.main-nav a{padding:8px 7px;font-size:13px}
      .guide-layout{grid-template-columns:230px 1fr;gap:32px}.footer-grid{grid-template-columns:1.3fr 1fr 1fr}
    }
    @media(max-width:768px){
      .container{width:min(100% - 32px,var(--container))}
      .header-inner{min-height:70px}.logo{min-width:0;flex:1}.logo-text{font-size:12px}.logo-mark{width:34px;height:34px}
      .main-nav{display:none;position:absolute;top:70px;left:0;right:0;background:var(--deep);padding:13px 16px;border-bottom:1px solid var(--line);flex-direction:column;align-items:stretch}
      .main-nav.open{display:flex}.main-nav a{padding:12px 14px}
      .menu-toggle{display:block}.header-tools .download-btn{display:none}.search-toggle{font-size:0;padding:0 11px}.search-toggle:after{content:"⌕";font-size:20px}
      .guide-hero{padding:52px 0}.guide-hero h1{font-size:clamp(34px,10vw,52px)}.guide-hero p{font-size:16px}
      .guide-layout{display:block}.toc{position:relative;top:auto;margin-bottom:42px}.info-strip{grid-template-columns:1fr}
      .section{padding:58px 0}.footer-grid{grid-template-columns:1fr 1fr;gap:28px}.footer-brand{grid-column:1/-1}
      .cta-inner{display:block}.cta .btn{margin-top:20px}
    }
    @media(max-width:480px){
      .container{width:calc(100% - 28px)}.logo-text{max-width:210px;font-size:11px}.logo-text small{font-size:8px}
      .guide-hero h1{font-size:34px}.guide-panel{padding:20px}.guide-content h3{font-size:19px}
      .footer-grid{grid-template-columns:1fr}.footer-bottom{display:block}.footer-bottom .notice{margin-top:8px}
      .search-form{display:block}.search-form input{width:100%;margin-bottom:9px}.search-form .btn{width:100%}
    }

/* 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}