/* roulang page: index */
:root{
  --ink:#171518;--ink-2:#211d22;--ink-3:#2d2630;--paper:#f3f0ec;
  --paper-2:#ebe6e2;--white:#fffdfa;--wine:#681f3b;--wine-deep:#48152d;
  --acid:#c9f54b;--acid-2:#a7d92f;--cyan:#83e8cf;--muted:#776f75;
  --line:#d8d0cc;--line-dark:#51444d;--radius:16px;--shadow:0 16px 34px rgba(28,18,25,.10);
  --ease:all .25s ease;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:"Noto Sans SC","Microsoft YaHei",Arial,sans-serif;color:var(--ink);background:var(--paper);line-height:1.75;font-size:15px}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
button,input,textarea{font:inherit}
button{cursor:pointer}
.container{width:min(1180px,calc(100% - 40px));margin:auto}
.site-header{height:76px;background:var(--ink);color:#fff;position:relative;z-index:10;border-bottom:1px solid #3b333a}
.header-inner{height:76px;display:flex;align-items:center;gap:30px}
.logo{display:flex;align-items:center;gap:11px;min-width:245px}
.logo-mark{width:34px;height:34px;background:var(--acid);color:var(--ink);display:grid;place-items:center;font-weight:900;font-size:17px;border-radius:8px;box-shadow:5px 5px 0 var(--wine)}
.logo-text{font-size:15px;font-weight:800;line-height:1.2;letter-spacing:.01em}
.logo-text small{display:block;color:var(--acid);font-size:10px;letter-spacing:.12em;margin-top:3px}
.nav{display:flex;align-items:center;gap:4px;flex:1}
.nav a{padding:9px 12px;color:#cfc8cc;font-size:13px;white-space:nowrap;border-bottom:2px solid transparent;transition:var(--ease)}
.nav a:hover,.nav a.active{color:var(--acid);border-bottom-color:var(--acid)}
.header-cta{background:var(--acid);color:var(--ink);padding:10px 17px;font-weight:800;font-size:13px;border-radius:8px;transition:var(--ease);white-space:nowrap}
.header-cta:hover,.btn-primary:hover{background:var(--acid-2);transform:translateY(-2px)}
.menu-toggle{display:none;background:none;border:1px solid var(--line-dark);color:#fff;padding:7px 10px;border-radius:7px}
.hero{background:var(--ink);color:#fff;padding:74px 0 82px;position:relative;overflow:hidden}
.hero:after{content:"";position:absolute;right:-120px;top:-150px;width:520px;height:520px;border:1px solid #513444;border-radius:50%;box-shadow:0 0 0 30px #2a2028,0 0 0 31px #513444,0 0 0 86px #241d24,0 0 0 87px #513444;opacity:.65}
.hero-grid{display:grid;grid-template-columns:1.02fr .98fr;gap:70px;align-items:center;position:relative;z-index:1}
.eyebrow,.section-kicker{color:var(--acid);font-weight:800;letter-spacing:.08em;font-size:12px;text-transform:uppercase}
.hero h1{font-size:clamp(32px,4.3vw,58px);line-height:1.14;letter-spacing:-.045em;margin:18px 0 22px;max-width:680px}
.hero-copy{color:#cfc5ca;max-width:610px;font-size:17px;line-height:1.9}
.hero-actions{display:flex;gap:12px;margin-top:31px;flex-wrap:wrap}
.btn{display:inline-flex;justify-content:center;align-items:center;min-height:46px;padding:11px 21px;border-radius:9px;font-weight:800;font-size:14px;border:1px solid transparent;transition:var(--ease)}
.btn:focus,.header-cta:focus,.nav a:focus,.faq-question:focus{outline:3px solid var(--cyan);outline-offset:3px}
.btn-primary{background:var(--acid);color:var(--ink)}
.btn-secondary{border-color:#746671;color:#fff;background:#302730}
.btn-secondary:hover{border-color:var(--acid);color:var(--acid);transform:translateY(-2px)}
.hero-note{display:flex;gap:20px;margin-top:27px;color:#a99da4;font-size:12px;flex-wrap:wrap}
.hero-note span:before{content:"●";color:var(--acid);margin-right:7px}
.console{background:#241e24;border:1px solid #574650;padding:18px;border-radius:18px;box-shadow:24px 24px 0 rgba(104,31,59,.45);transform:rotate(1deg)}
.console-top{display:flex;justify-content:space-between;align-items:center;border-bottom:1px solid #4a3a44;padding-bottom:14px;color:#c9bec3;font-size:12px}
.live{color:var(--acid);font-weight:800}
.console-screen{height:260px;margin:18px 0;background:var(--wine-deep);border:1px solid #8c3c59;position:relative;padding:22px;overflow:hidden}
.console-screen:before,.console-screen:after{content:"";position:absolute;inset:0;background-image:linear-gradient(#ffffff09 1px,transparent 1px),linear-gradient(90deg,#ffffff09 1px,transparent 1px);background-size:22px 22px;opacity:.65}
.screen-label{position:relative;z-index:1;color:#fff;font-size:25px;font-weight:900;letter-spacing:.04em}
.screen-sub{position:relative;z-index:1;color:var(--acid);font-size:12px;margin-top:8px}
.arc{position:absolute;width:170px;height:170px;border:2px solid var(--cyan);border-radius:50%;right:35px;bottom:-65px;z-index:1;opacity:.8}
.arc:after{content:"";position:absolute;width:8px;height:8px;background:var(--acid);border-radius:50%;top:15px;left:45px}
.console-controls{display:grid;grid-template-columns:1fr 1fr 1fr;gap:9px}
.control{border:1px solid #51434d;padding:10px 12px;color:#bdb1b8;font-size:11px}
.control b{display:block;color:#fff;font-size:14px}
.section{padding:95px 0}
.section-head{display:flex;justify-content:space-between;align-items:end;gap:30px;margin-bottom:35px}
.section h2{font-size:clamp(27px,3vw,40px);line-height:1.2;letter-spacing:-.035em;margin-top:9px}
.section-lead{max-width:480px;color:var(--muted)}
.feature-layout{display:grid;grid-template-columns:1.35fr .65fr;gap:18px}
.feature-main,.feature-side article{border:1px solid var(--line);background:var(--white);border-radius:var(--radius);padding:29px;transition:var(--ease)}
.feature-main{background:var(--wine);color:#fff;min-height:260px;position:relative;overflow:hidden}
.feature-main:after{content:"PG";position:absolute;right:22px;bottom:-45px;font-size:180px;line-height:1;font-weight:900;color:#ffffff0b}
.feature-main h3{font-size:27px;max-width:420px;position:relative;z-index:1}
.feature-main p{color:#e3d6dc;max-width:500px;margin-top:13px;position:relative;z-index:1}
.feature-side{display:grid;gap:18px}
.feature-side article{display:flex;gap:18px;align-items:flex-start}
.number{color:var(--wine);font-weight:900;font-size:22px;line-height:1}
.feature-side h3{font-size:17px;margin-bottom:4px}
.feature-side p{font-size:13px;color:var(--muted);line-height:1.65}
.download-band{background:var(--ink);color:#fff;padding:62px 0}
.download-grid{display:grid;grid-template-columns:270px 1fr 250px;gap:42px;align-items:center}
.device{height:310px;border:9px solid #40323c;border-radius:31px;background:#d8d0c9;padding:12px;box-shadow:13px 13px 0 var(--wine)}
.device-inner{height:100%;background:var(--wine-deep);border-radius:18px;padding:19px;color:#fff;position:relative;overflow:hidden}
.device-inner:before{content:"PGIMULATOR";display:block;color:var(--acid);font-weight:900;font-size:13px;letter-spacing:.08em}
.device-line{height:9px;background:#a74766;margin-top:20px;width:76%;border-radius:2px}
.device-line.short{width:52%;margin-top:10px;background:#d6e990}
.device-boxes{display:grid;grid-template-columns:1fr 1fr;gap:8px;margin-top:27px}
.device-boxes i{height:65px;background:#653047;border:1px solid #a04a66;display:block}
.download-grid h2{font-size:34px;line-height:1.25;margin:8px 0 14px}
.download-grid p{color:#c9bec3}
.steps{display:grid;gap:13px}
.step{display:flex;gap:13px;align-items:flex-start}
.step b{width:25px;height:25px;display:grid;place-items:center;background:var(--acid);color:var(--ink);border-radius:50%;font-size:12px;flex:none}
.step span{font-size:13px;color:#d6cdd1}
.download-actions{display:grid;gap:12px}
.download-actions .btn{width:100%}
.download-tip{border-left:2px solid var(--acid);padding-left:13px;color:#aca0a7;font-size:12px}
.process{background:var(--paper-2)}
.process-list{display:grid;grid-template-columns:repeat(4,1fr);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.process-item{padding:25px 20px 27px;border-right:1px solid var(--line);position:relative}
.process-item:last-child{border-right:0}
.process-item em{font-style:normal;font-size:38px;color:var(--wine);font-weight:900;line-height:1}
.process-item h3{font-size:17px;margin:16px 0 5px}
.process-item p{font-size:13px;color:var(--muted)}
.news-panel{background:var(--white);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden}
.news-item{display:grid;grid-template-columns:115px 1fr 100px;gap:24px;align-items:center;padding:22px 26px;border-bottom:1px solid var(--line);transition:var(--ease)}
.news-item:last-child{border-bottom:0}
.news-item:hover{background:#faf6f2;padding-left:32px}
.news-date{font-size:12px;color:var(--muted);font-weight:700}
.news-title{font-weight:800;font-size:17px;margin-bottom:3px}
.news-summary{font-size:13px;color:var(--muted);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.tag{display:inline-block;padding:3px 9px;border-radius:5px;background:#e5f5b3;color:#465d0b;font-size:11px;font-weight:800;margin-right:8px}
.news-arrow{text-align:right;color:var(--wine);font-weight:900}
.empty-state{padding:42px;text-align:center;color:var(--muted)}
.index-grid{display:grid;grid-template-columns:repeat(5,1fr);gap:10px}
.index-link{padding:22px 17px;background:var(--white);border:1px solid var(--line);border-radius:11px;min-height:135px;transition:var(--ease)}
.index-link:hover{background:var(--wine);color:#fff;transform:translateY(-4px);box-shadow:var(--shadow)}
.index-link b{display:block;color:var(--wine);font-size:25px;margin-bottom:12px}
.index-link:hover b{color:var(--acid)}
.index-link span{font-weight:800;font-size:14px}
.index-link small{display:block;color:var(--muted);font-size:12px;margin-top:5px;line-height:1.5}
.index-link:hover small{color:#ddcfd5}
.faq-wrap{display:grid;grid-template-columns:.75fr 1.25fr;gap:55px}
.faq-intro{background:var(--wine);color:#fff;border-radius:var(--radius);padding:29px;align-self:start}
.faq-intro p{color:#e4d5dc;margin-top:12px;font-size:14px}
.faq-list{border-top:1px solid var(--line)}
.faq-item{border-bottom:1px solid var(--line)}
.faq-question{width:100%;border:0;background:transparent;text-align:left;padding:19px 4px;display:flex;justify-content:space-between;gap:20px;font-weight:800;color:var(--ink)}
.faq-question span{color:var(--wine);font-size:20px;transition:var(--ease)}
.faq-answer{display:none;color:var(--muted);font-size:14px;padding:0 35px 19px 4px}
.faq-item.open .faq-answer{display:block}
.faq-item.open .faq-question span{transform:rotate(45deg);color:var(--wine)}
.cta{padding:75px 0;background:var(--acid)}
.cta-inner{display:flex;justify-content:space-between;align-items:center;gap:30px}
.cta h2{font-size:clamp(28px,3.4vw,43px);line-height:1.2;max-width:700px}
.cta p{margin-top:9px;color:#52601f}
.cta .btn-secondary{background:var(--ink);border-color:var(--ink)}
.cta .btn-secondary:hover{background:var(--wine);color:#fff}
.site-footer{background:var(--ink);color:#fff;padding:55px 0 25px}
.footer-top{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:40px;padding-bottom:42px;border-bottom:1px solid #40353d}
.footer-brand p{color:#a99da4;max-width:330px;font-size:13px;margin-top:14px}
.footer-title{font-weight:800;margin-bottom:14px;color:var(--acid)}
.footer-links{display:grid;gap:7px}
.footer-links a{font-size:13px;color:#bcb1b7;transition:var(--ease)}
.footer-links a:hover{color:var(--acid);padding-left:4px}
.footer-bottom{display:flex;justify-content:space-between;gap:20px;padding-top:22px;color:#887b83;font-size:12px}
@media(max-width:1024px){.nav{gap:0}.nav a{padding:8px 7px;font-size:12px}.header-cta{padding:9px 12px}.hero-grid{gap:35px}.download-grid{grid-template-columns:220px 1fr 190px}.index-grid{grid-template-columns:repeat(3,1fr)}}
@media(max-width:768px){.container{width:min(100% - 32px,600px)}.site-header,.header-inner{height:68px}.header-inner{gap:15px}.logo{min-width:0;flex:1}.logo-text{font-size:13px}.nav{display:none;position:absolute;top:68px;left:0;right:0;background:var(--ink);padding:12px 16px;border-top:1px solid #40353d;flex-direction:column;align-items:stretch}.nav.open{display:flex}.nav a{padding:12px 5px;border-bottom:1px solid #3b333a}.header-cta{display:none}.menu-toggle{display:block}.hero{padding:54px 0 65px}.hero-grid{grid-template-columns:1fr}.hero h1{font-size:38px}.hero-copy{font-size:15px}.console{max-width:530px;margin:auto}.section{padding:67px 0}.section-head{display:block}.section-lead{margin-top:14px}.feature-layout,.faq-wrap{grid-template-columns:1fr}.feature-side{grid-template-columns:1fr 1fr}.download-grid{grid-template-columns:190px 1fr;gap:28px}.download-actions{grid-column:2}.download-grid h2{font-size:28px}.process-list{grid-template-columns:1fr 1fr}.process-item:nth-child(2){border-right:0}.process-item:nth-child(-n+2){border-bottom:1px solid var(--line)}.news-item{grid-template-columns:85px 1fr 28px;gap:12px;padding:18px}.news-summary{display:none}.footer-top{grid-template-columns:1.4fr 1fr 1fr}.footer-top>div:last-child{display:none}}
@media(max-width:520px){.hero h1{font-size:32px}.hero-actions{display:grid}.hero-actions .btn{width:100%}.hero-note{gap:9px;display:grid}.console-screen{height:220px}.feature-side{grid-template-columns:1fr}.download-grid{grid-template-columns:1fr}.device{width:190px;margin:auto;height:285px}.download-actions{grid-column:auto}.download-grid h2{font-size:27px}.process-list{grid-template-columns:1fr}.process-item{border-right:0!important;border-bottom:1px solid var(--line)!important}.process-item:last-child{border-bottom:0!important}.index-grid{grid-template-columns:1fr 1fr}.index-link{min-height:120px;padding:17px 13px}.news-item{grid-template-columns:1fr 25px}.news-date{grid-column:1/-1}.news-title{font-size:15px}.cta-inner{display:block}.cta .btn{width:100%;margin-top:20px}.footer-top{grid-template-columns:1fr 1fr;gap:28px}.footer-brand{grid-column:1/-1}.footer-bottom{display:block}.footer-bottom span{display:block;margin-top:8px}}

/* roulang page: article */
:root{
      --ink:#171518;
      --ink-2:#211d22;
      --ink-3:#2d2630;
      --paper:#f3f0ec;
      --paper-2:#ebe6e2;
      --white:#fffdfa;
      --wine:#681f3b;
      --wine-deep:#48152d;
      --acid:#c9f54b;
      --acid-2:#a7d92f;
      --cyan:#83e8cf;
      --muted:#776f75;
      --line:#d8d0cc;
      --line-dark:#51444d;
      --radius:16px;
      --shadow:0 16px 34px rgba(28,18,25,.10);
      --ease:all .25s ease;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{margin:0;background:var(--paper);color:var(--ink);font-family:"Noto Sans SC","Microsoft YaHei",Arial,sans-serif;font-size:15px;line-height:1.75}
    a{color:inherit;text-decoration:none}
    img{max-width:100%;display:block}
    button,input,textarea{font:inherit}
    button{cursor:pointer}
    .container{width:min(1180px,calc(100% - 40px));margin:auto}
    .site-header{height:76px;background:var(--ink);color:#fff;border-bottom:1px solid #3b333a;position:relative;z-index:10}
    .header-inner{height:76px;display:flex;align-items:center;gap:30px}
    .logo{display:flex;align-items:center;gap:11px;min-width:245px}
    .logo-mark{width:34px;height:34px;background:var(--acid);color:var(--ink);display:grid;place-items:center;font-weight:900;font-size:17px;border-radius:8px;box-shadow:5px 5px 0 var(--wine)}
    .logo-text{font-size:15px;font-weight:800;line-height:1.2;letter-spacing:.01em}
    .logo-text small{display:block;color:var(--acid);font-size:10px;letter-spacing:.12em;margin-top:3px}
    .nav{display:flex;align-items:center;gap:4px;flex:1}
    .nav a{padding:9px 12px;color:#cfc8cc;font-size:13px;white-space:nowrap;border-bottom:2px solid transparent;transition:var(--ease)}
    .nav a:hover,.nav a.active{color:var(--acid);border-bottom-color:var(--acid)}
    .header-cta{background:var(--acid);color:var(--ink);padding:10px 17px;font-weight:800;font-size:13px;border-radius:8px;transition:var(--ease);white-space:nowrap}
    .header-cta:hover{background:var(--acid-2);transform:translateY(-2px)}
    .menu-toggle{display:none;background:none;border:1px solid var(--line-dark);color:#fff;padding:7px 10px;border-radius:7px}
    .article-hero{background:var(--ink);color:#fff;padding:58px 0 64px;position:relative;overflow:hidden}
    .article-hero:after{content:"PG";position:absolute;right:8%;bottom:-66px;color:#ffffff08;font-size:240px;font-weight:900;line-height:1}
    .article-hero-inner{position:relative;z-index:1;max-width:900px}
    .breadcrumb{display:flex;gap:10px;align-items:center;color:#a99da4;font-size:13px;margin-bottom:28px;flex-wrap:wrap}
    .breadcrumb a:hover{color:var(--acid)}
    .breadcrumb .divider{color:var(--wine)}
    .eyebrow{color:var(--acid);font-weight:800;letter-spacing:.08em;font-size:12px}
    .article-hero h1{font-size:clamp(30px,4.6vw,56px);line-height:1.18;letter-spacing:-.045em;margin:16px 0 20px;max-width:900px}
    .article-intro{max-width:760px;color:#d0c5ca;font-size:17px;line-height:1.9}
    .article-meta{display:flex;gap:12px;align-items:center;flex-wrap:wrap;margin-top:25px;color:#b4a8ae;font-size:13px}
    .tag{display:inline-block;padding:3px 10px;border-radius:5px;background:#e5f5b3;color:#465d0b;font-size:11px;font-weight:800}
    .article-layout{display:grid;grid-template-columns:minmax(0,820px) 260px;gap:56px;align-items:start;padding:76px 0 92px}
    .article-paper{background:var(--white);border:1px solid var(--line);border-radius:var(--radius);padding:42px 48px;box-shadow:var(--shadow)}
    .article-content{font-size:16px;line-height:2;color:#403a3e}
    .article-content h2{font-size:29px;line-height:1.35;color:var(--ink);margin:38px 0 16px;padding-left:15px;border-left:4px solid var(--acid-2)}
    .article-content h3{font-size:21px;line-height:1.45;color:var(--wine);margin:30px 0 12px}
    .article-content p{margin:0 0 21px}
    .article-content ul,.article-content ol{padding-left:25px;margin:0 0 24px}
    .article-content li{padding:4px 0}
    .article-content img{border-radius:12px;margin:28px auto;border:1px solid var(--line)}
    .article-content blockquote{margin:28px 0;padding:19px 22px;background:#f0f7dc;border-left:4px solid var(--acid-2);color:#46531e;border-radius:0 10px 10px 0}
    .article-content table{width:100%;border-collapse:collapse;margin:25px 0;background:#fff}
    .article-content th,.article-content td{padding:12px;border:1px solid var(--line);text-align:left}
    .article-content th{background:var(--paper-2);font-weight:800}
    .article-aside{position:sticky;top:24px}
    .aside-card{background:var(--ink-2);color:#fff;border-radius:var(--radius);padding:25px;margin-bottom:18px}
    .aside-card h2{font-size:18px;margin:0 0 15px}
    .aside-card p{color:#c8bdc2;font-size:13px;line-height:1.7;margin:0 0 18px}
    .aside-links{border-top:1px solid var(--line-dark)}
    .aside-links a{display:block;color:#d5cbd0;font-size:13px;padding:11px 0;border-bottom:1px solid var(--line-dark);transition:var(--ease)}
    .aside-links a:hover{color:var(--acid);padding-left:5px}
    .btn{display:inline-flex;justify-content:center;align-items:center;min-height:46px;padding:11px 21px;border-radius:9px;font-weight:800;font-size:14px;border:1px solid transparent;transition:var(--ease)}
    .btn:focus,.header-cta:focus,.nav a:focus,.faq-question:focus{outline:3px solid var(--cyan);outline-offset:3px}
    .btn-primary{background:var(--acid);color:var(--ink)}
    .btn-primary:hover{background:var(--acid-2);transform:translateY(-2px)}
    .btn-secondary{border-color:#746671;color:#fff;background:#302730}
    .btn-secondary:hover{border-color:var(--acid);color:var(--acid);transform:translateY(-2px)}
    .article-bottom{margin-top:34px;padding-top:24px;border-top:1px solid var(--line);display:flex;justify-content:space-between;gap:15px;flex-wrap:wrap}
    .related-section{padding:0 0 92px}
    .section-head{display:flex;justify-content:space-between;align-items:end;gap:25px;margin-bottom:28px}
    .section-kicker{color:var(--wine);font-weight:800;letter-spacing:.08em;font-size:12px}
    .section-head h2{font-size:32px;line-height:1.25;margin:8px 0 0}
    .section-lead{color:var(--muted);max-width:460px}
    .related-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
    .related-card{background:var(--white);border:1px solid var(--line);border-radius:var(--radius);padding:23px;min-height:190px;transition:var(--ease)}
    .related-card:hover{transform:translateY(-4px);box-shadow:var(--shadow);border-color:#b9c987}
    .related-card h3{font-size:18px;line-height:1.45;margin:14px 0 8px}
    .related-card p{color:var(--muted);font-size:13px;line-height:1.7;margin:0 0 14px}
    .related-card .read{color:var(--wine);font-size:13px;font-weight:800}
    .cta-band{background:var(--wine);color:#fff;padding:45px 0}
    .cta-inner{display:flex;align-items:center;justify-content:space-between;gap:28px}
    .cta-inner h2{font-size:29px;line-height:1.3;margin:0 0 8px}
    .cta-inner p{color:#e3d6dc;margin:0;max-width:650px}
    .site-footer{background:var(--ink);color:#fff;padding:55px 0 22px}
    .footer-top{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:35px;padding-bottom:38px;border-bottom:1px solid #3b333a}
    .footer-brand p{color:#aaa0a5;max-width:310px;font-size:13px;margin-top:18px}
    .footer-title{color:var(--acid);font-size:13px;font-weight:800;margin-bottom:13px}
    .footer-links{display:grid;gap:8px}
    .footer-links a{color:#bcb2b7;font-size:13px;transition:var(--ease)}
    .footer-links a:hover{color:var(--acid);padding-left:4px}
    .footer-bottom{display:flex;justify-content:space-between;gap:20px;color:#897e84;font-size:12px;padding-top:20px;flex-wrap:wrap}
    @media(max-width:1024px){
      .header-inner{gap:14px}.logo{min-width:220px}.nav a{padding:9px 7px;font-size:12px}
      .article-layout{grid-template-columns:minmax(0,1fr) 220px;gap:28px}
    }
    @media(max-width:768px){
      .site-header,.header-inner{height:70px}.header-inner{justify-content:space-between}
      .logo{min-width:0}.logo-text{font-size:13px}.logo-text small{font-size:9px}
      .menu-toggle{display:block}.header-cta{display:none}
      .nav{display:none;position:absolute;left:20px;right:20px;top:70px;padding:12px;background:var(--ink-2);border:1px solid var(--line-dark);border-radius:10px;flex-direction:column;align-items:stretch}
      .nav.open{display:flex}.nav a{padding:12px 14px;border-bottom:1px solid var(--line-dark)}
      .article-hero{padding:42px 0 48px}.article-hero h1{font-size:34px}
      .article-layout{display:block;padding:48px 0 65px}.article-paper{padding:27px 21px}
      .article-aside{position:static;margin-top:25px}.aside-card{margin-bottom:14px}
      .related-grid{grid-template-columns:1fr 1fr}.cta-inner{display:block}.cta-inner .btn{margin-top:22px}
      .footer-top{grid-template-columns:1.5fr 1fr 1fr}
    }
    @media(max-width:520px){
      .container{width:min(100% - 32px,1180px)}
      .logo-mark{width:31px;height:31px;font-size:15px}.logo-text{font-size:12px}
      .article-hero h1{font-size:29px}.article-intro{font-size:15px}
      .article-content{font-size:15px}.article-content h2{font-size:24px}
      .related-grid{grid-template-columns:1fr}.section-head{display:block}.section-lead{margin-top:12px}
      .footer-top{grid-template-columns:1fr 1fr;gap:28px}.footer-brand{grid-column:1/-1}
      .footer-bottom{display:block}.footer-bottom span{display:block;margin-bottom:8px}
    }

/* roulang page: category1 */
:root{
      --ink:#171518;--ink-2:#211d22;--ink-3:#2d2630;--paper:#f3f0ec;
      --paper-2:#ebe6e2;--white:#fffdfa;--wine:#681f3b;--wine-deep:#48152d;
      --acid:#c9f54b;--acid-2:#a7d92f;--cyan:#83e8cf;--muted:#776f75;
      --line:#d8d0cc;--line-dark:#51444d;--radius:16px;
      --shadow:0 16px 34px rgba(28,18,25,.10);--ease:all .25s ease
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{margin:0;font-family:"Noto Sans SC","Microsoft YaHei",Arial,sans-serif;color:var(--ink);background:var(--paper);line-height:1.75;font-size:15px}
    a{color:inherit;text-decoration:none}
    img{max-width:100%;display:block}
    button,input,textarea{font:inherit}
    button{cursor:pointer}
    .container{width:min(1180px,calc(100% - 40px));margin:auto}
    .site-header{height:76px;background:var(--ink);color:#fff;position:relative;z-index:10;border-bottom:1px solid #3b333a}
    .header-inner{height:76px;display:flex;align-items:center;gap:30px}
    .logo{display:flex;align-items:center;gap:11px;min-width:245px}
    .logo-mark{width:34px;height:34px;background:var(--acid);color:var(--ink);display:grid;place-items:center;font-weight:900;font-size:17px;border-radius:8px;box-shadow:5px 5px 0 var(--wine)}
    .logo-text{font-size:15px;font-weight:800;line-height:1.2;letter-spacing:.01em}
    .logo-text small{display:block;color:var(--acid);font-size:10px;letter-spacing:.12em;margin-top:3px}
    .nav{display:flex;align-items:center;gap:4px;flex:1}
    .nav a{padding:9px 12px;color:#cfc8cc;font-size:13px;white-space:nowrap;border-bottom:2px solid transparent;transition:var(--ease)}
    .nav a:hover,.nav a.active{color:var(--acid);border-bottom-color:var(--acid)}
    .header-cta{background:var(--acid);color:var(--ink);padding:10px 17px;font-weight:800;font-size:13px;border-radius:8px;transition:var(--ease);white-space:nowrap}
    .header-cta:hover,.btn-primary:hover{background:var(--acid-2);transform:translateY(-2px)}
    .menu-toggle{display:none;background:none;border:1px solid var(--line-dark);color:#fff;padding:7px 10px;border-radius:7px}
    .btn{display:inline-flex;justify-content:center;align-items:center;min-height:46px;padding:11px 21px;border-radius:9px;font-weight:800;font-size:14px;border:1px solid transparent;transition:var(--ease)}
    .btn:focus,.header-cta:focus,.nav a:focus,.faq-question:focus{outline:3px solid var(--cyan);outline-offset:3px}
    .btn-primary{background:var(--acid);color:var(--ink)}
    .btn-secondary{border-color:#746671;color:#fff;background:#302730}
    .btn-secondary:hover{border-color:var(--acid);color:var(--acid);transform:translateY(-2px)}
    .page-hero{background:var(--ink);color:#fff;padding:70px 0 76px;position:relative;overflow:hidden}
    .page-hero:after{content:"PG";position:absolute;right:7%;bottom:-72px;font-size:250px;line-height:1;font-weight:900;color:#ffffff08}
    .hero-inner{position:relative;z-index:1;max-width:850px}
    .eyebrow,.section-kicker{color:var(--acid);font-weight:800;letter-spacing:.08em;font-size:12px;text-transform:uppercase}
    .page-hero h1{font-size:clamp(34px,5vw,60px);line-height:1.14;letter-spacing:-.045em;margin:18px 0 20px}
    .hero-copy{color:#cfc5ca;max-width:720px;font-size:17px;line-height:1.9}
    .hero-actions{display:flex;gap:12px;margin-top:28px;flex-wrap:wrap}
    .hero-note{display:flex;gap:22px;margin-top:24px;color:#a99da4;font-size:12px;flex-wrap:wrap}
    .hero-note span:before{content:"●";color:var(--acid);margin-right:7px}
    .section{padding:88px 0}
    .section-head{display:flex;justify-content:space-between;align-items:end;gap:30px;margin-bottom:34px}
    .section h2{font-size:clamp(27px,3vw,40px);line-height:1.2;letter-spacing:-.035em;margin:9px 0 0}
    .section-lead{max-width:500px;color:var(--muted)}
    .overview{display:grid;grid-template-columns:1.25fr .75fr;gap:18px}
    .overview-main,.overview-side article,.interface-card,.setting-panel,.notice-box{border:1px solid var(--line);background:var(--white);border-radius:var(--radius);padding:30px;transition:var(--ease)}
    .overview-main{background:var(--wine);color:#fff;min-height:285px;position:relative;overflow:hidden}
    .overview-main:after{content:"01";position:absolute;right:24px;bottom:-32px;font-size:160px;font-weight:900;color:#ffffff0b}
    .overview-main h3{font-size:28px;position:relative;z-index:1}
    .overview-main p{color:#e3d6dc;max-width:590px;position:relative;z-index:1}
    .overview-side{display:grid;gap:18px}
    .overview-side article{display:flex;gap:17px;align-items:flex-start}
    .overview-side article:hover,.interface-card:hover,.setting-panel:hover{transform:translateY(-3px);box-shadow:var(--shadow)}
    .number{width:34px;height:34px;flex:none;border-radius:8px;background:var(--acid);display:grid;place-items:center;font-weight:900}
    h3{margin:0 0 7px;font-size:19px;line-height:1.35}
    .overview-side p,.interface-card p,.setting-panel p{margin:0;color:var(--muted);font-size:14px}
    .dark-section{background:var(--ink-2);color:#fff}
    .dark-section .section-lead{color:#bdb1b7}
    .interface-grid{display:grid;grid-template-columns:1fr 1fr;gap:18px}
    .interface-card{min-height:190px}
    .interface-card strong{display:block;color:var(--wine);font-size:12px;letter-spacing:.12em;margin-bottom:18px}
    .interface-card:nth-child(2){background:#e5f5b3}
    .interface-card:nth-child(2) p{color:#4d5c29}
    .interface-card:nth-child(3){background:#dcefe9}
    .interface-card:nth-child(3) p{color:#48645d}
    .interface-card:nth-child(4){background:#f8e4ea}
    .interface-card:nth-child(4) p{color:#72505c}
    .settings{display:grid;grid-template-columns:.72fr 1.28fr;gap:45px;align-items:start}
    .setting-panel{display:grid;grid-template-columns:44px 1fr;gap:18px;margin-bottom:14px}
    .setting-panel .step{font-size:28px;color:var(--wine);font-weight:900;line-height:1}
    .device-board{background:var(--ink);border-radius:18px;padding:24px;color:#fff;min-height:310px;position:relative;overflow:hidden;border:1px solid var(--line-dark)}
    .device-board:before{content:"";position:absolute;inset:16px;border:1px solid #58454f;border-radius:12px;background:repeating-linear-gradient(0deg,transparent 0 26px,#ffffff08 27px),repeating-linear-gradient(90deg,transparent 0 38px,#ffffff08 39px)}
    .device-content{position:relative;z-index:1}
    .device-top{display:flex;justify-content:space-between;color:var(--acid);font-size:12px;font-weight:800}
    .screen-title{font-size:28px;font-weight:900;margin-top:52px}
    .screen-sub{color:#bdb0b7;font-size:13px}
    .control-row{display:flex;gap:9px;margin-top:28px}
    .control-row span{height:34px;flex:1;border:1px solid #66525d;border-radius:7px;display:grid;place-items:center;font-size:12px;color:#d9cdd2}
    .control-row span:first-child{border-color:var(--acid);color:var(--acid)}
    .notice-box{background:var(--paper-2);border-left:5px solid var(--acid);margin-top:26px}
    .notice-box strong{display:block;margin-bottom:5px}
    .notice-box p{margin:0;color:var(--muted)}
    .process-list{display:grid;grid-template-columns:repeat(4,1fr);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
    .process-item{padding:25px 20px 27px;border-right:1px solid var(--line)}
    .process-item:last-child{border-right:0}
    .process-item em{font-style:normal;font-size:38px;color:var(--wine);font-weight:900;line-height:1}
    .process-item h3{font-size:17px;margin:16px 0 5px}
    .process-item p{font-size:13px;color:var(--muted);margin:0}
    .faq-wrap{display:grid;grid-template-columns:.75fr 1.25fr;gap:55px}
    .faq-intro{background:var(--wine);color:#fff;border-radius:var(--radius);padding:29px;align-self:start}
    .faq-intro p{color:#e4d5dc;margin-top:12px;font-size:14px}
    .faq-list{border-top:1px solid var(--line)}
    .faq-item{border-bottom:1px solid var(--line)}
    .faq-question{width:100%;border:0;background:transparent;text-align:left;padding:19px 4px;display:flex;justify-content:space-between;gap:20px;font-weight:800;color:var(--ink)}
    .faq-question span{color:var(--wine);font-size:20px;transition:var(--ease)}
    .faq-answer{display:none;color:var(--muted);font-size:14px;padding:0 35px 19px 4px}
    .faq-item.open .faq-answer{display:block}
    .faq-item.open .faq-question span{transform:rotate(45deg)}
    .cta{background:var(--acid);padding:48px 0}
    .cta-inner{display:flex;align-items:center;justify-content:space-between;gap:30px}
    .cta h2{font-size:clamp(25px,3vw,38px);margin:0;line-height:1.25}
    .cta p{margin:9px 0 0;color:#465218}
    .cta .btn{background:var(--ink);color:#fff}
    .cta .btn:hover{background:var(--wine);transform:translateY(-2px)}
    .site-footer{background:var(--ink);color:#fff;padding:53px 0 22px;position:relative;overflow:hidden}
    .site-footer:after{content:"";position:absolute;right:5%;bottom:-80px;width:300px;height:150px;border-top:1px solid #55434d;transform:skew(-30deg)}
    .footer-top{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:35px;position:relative;z-index:1}
    .footer-brand p{color:#a99da4;max-width:290px;font-size:13px;margin-top:18px}
    .footer-title{font-weight:800;color:var(--acid);font-size:13px;margin-bottom:14px}
    .footer-links{display:grid;gap:8px;color:#cfc5ca;font-size:13px}
    .footer-links a:hover{color:var(--acid)}
    .footer-bottom{border-top:1px solid #3b333a;margin-top:38px;padding-top:18px;display:flex;justify-content:space-between;gap:20px;color:#8f838a;font-size:12px;position:relative;z-index:1}
    @media(max-width:1024px){.nav a{padding-left:7px;padding-right:7px}.header-inner{gap:12px}.logo{min-width:220px}.settings{gap:25px}}
    @media(max-width:768px){
      .container{width:min(100% - 32px,600px)}
      .site-header,.header-inner{height:70px}
      .header-inner{justify-content:space-between}
      .menu-toggle{display:block}
      .nav{display:none;position:absolute;top:70px;left:0;right:0;background:var(--ink);padding:12px 16px 18px;border-bottom:1px solid #3b333a;flex-direction:column;align-items:stretch}
      .nav.show{display:flex}
      .nav a{padding:12px 8px}
      .header-cta{display:none}
      .page-hero{padding:55px 0 60px}
      .hero-actions .btn{width:100%}
      .overview,.settings,.faq-wrap{grid-template-columns:1fr}
      .interface-grid{grid-template-columns:1fr}
      .process-list{grid-template-columns:1fr 1fr}
      .process-item:nth-child(2){border-right:0}
      .process-item:nth-child(-n+2){border-bottom:1px solid var(--line)}
      .cta-inner{align-items:flex-start;flex-direction:column}
      .cta .btn{width:100%}
      .footer-top{grid-template-columns:1fr 1fr}
      .footer-brand{grid-column:1/-1}
      .footer-bottom{flex-direction:column;gap:7px}
    }
    @media(max-width:520px){
      .logo{min-width:0}.logo-text{font-size:13px}.logo-text small{font-size:9px}
      .page-hero h1{font-size:35px}
      .hero-copy{font-size:15px}
      .section{padding:62px 0}
      .section-head{display:block}
      .section-lead{margin-top:13px}
      .overview-main,.overview-side article,.interface-card,.setting-panel{padding:23px}
      .process-list{grid-template-columns:1fr}
      .process-item{border-right:0!important;border-bottom:1px solid var(--line)}
      .process-item:last-child{border-bottom:0}
      .footer-top{grid-template-columns:1fr}
      .footer-brand{grid-column:auto}
    }

/* roulang page: category2 */
:root{
      --ink:#171518;--ink-2:#211d22;--ink-3:#2d2630;--paper:#f3f0ec;
      --paper-2:#ebe6e2;--white:#fffdfa;--wine:#681f3b;--wine-deep:#48152d;
      --acid:#c9f54b;--acid-2:#a7d92f;--cyan:#83e8cf;--muted:#776f75;
      --line:#d8d0cc;--line-dark:#51444d;--radius:16px;
      --shadow:0 16px 34px rgba(28,18,25,.10);--ease:all .25s ease;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{margin:0;font-family:"Noto Sans SC","Microsoft YaHei",Arial,sans-serif;color:var(--ink);background:var(--paper);line-height:1.75;font-size:15px}
    a{color:inherit;text-decoration:none}
    img{max-width:100%;display:block}
    button,input,textarea{font:inherit}
    button{cursor:pointer}
    .container{width:min(1180px,calc(100% - 40px));margin:auto}
    .site-header{height:76px;background:var(--ink);color:#fff;position:relative;z-index:10;border-bottom:1px solid #3b333a}
    .header-inner{height:76px;display:flex;align-items:center;gap:30px}
    .logo{display:flex;align-items:center;gap:11px;min-width:245px}
    .logo-mark{width:34px;height:34px;background:var(--acid);color:var(--ink);display:grid;place-items:center;font-weight:900;font-size:17px;border-radius:8px;box-shadow:5px 5px 0 var(--wine)}
    .logo-text{font-size:15px;font-weight:800;line-height:1.2;letter-spacing:.01em}
    .logo-text small{display:block;color:var(--acid);font-size:10px;letter-spacing:.12em;margin-top:3px}
    .nav{display:flex;align-items:center;gap:4px;flex:1}
    .nav a{padding:9px 12px;color:#cfc8cc;font-size:13px;white-space:nowrap;border-bottom:2px solid transparent;transition:var(--ease)}
    .nav a:hover,.nav a.active{color:var(--acid);border-bottom-color:var(--acid)}
    .header-cta{background:var(--acid);color:var(--ink);padding:10px 17px;font-weight:800;font-size:13px;border-radius:8px;transition:var(--ease);white-space:nowrap}
    .header-cta:hover{background:var(--acid-2);transform:translateY(-2px)}
    .menu-toggle{display:none;background:none;border:1px solid var(--line-dark);color:#fff;padding:7px 10px;border-radius:7px}
    .hero{background:var(--ink);color:#fff;padding:72px 0 78px;position:relative;overflow:hidden}
    .hero:after{content:"";position:absolute;right:-120px;top:-150px;width:520px;height:520px;border:1px solid #513444;border-radius:50%;box-shadow:0 0 0 30px #2a2028,0 0 0 31px #513444,0 0 0 86px #241d24,0 0 0 87px #513444;opacity:.65}
    .hero-grid{display:grid;grid-template-columns:1fr 1fr;gap:70px;align-items:center;position:relative;z-index:1}
    .eyebrow,.section-kicker{color:var(--acid);font-weight:800;letter-spacing:.08em;font-size:12px}
    .hero h1{font-size:clamp(32px,4.3vw,57px);line-height:1.14;letter-spacing:-.045em;margin:18px 0 22px;max-width:650px}
    .hero-copy{color:#cfc5ca;max-width:590px;font-size:17px;line-height:1.9}
    .hero-actions{display:flex;gap:12px;margin-top:31px;flex-wrap:wrap}
    .btn{display:inline-flex;justify-content:center;align-items:center;min-height:46px;padding:11px 21px;border-radius:9px;font-weight:800;font-size:14px;border:1px solid transparent;transition:var(--ease)}
    .btn:focus,.header-cta:focus,.nav a:focus,.faq-question:focus,input:focus,textarea:focus{outline:3px solid var(--cyan);outline-offset:3px}
    .btn-primary{background:var(--acid);color:var(--ink)}
    .btn-primary:hover{background:var(--acid-2);transform:translateY(-2px)}
    .btn-secondary{border-color:#746671;color:#fff;background:#302730}
    .btn-secondary:hover{border-color:var(--acid);color:var(--acid);transform:translateY(-2px)}
    .hero-note{display:flex;gap:20px;margin-top:27px;color:#a99da4;font-size:12px;flex-wrap:wrap}
    .hero-note span:before{content:"●";color:var(--acid);margin-right:7px}
    .download-art{min-height:350px;background:#2a2229;border:1px solid #57434e;border-radius:20px;padding:22px;position:relative;box-shadow:18px 18px 0 var(--wine-deep)}
    .art-top{display:flex;justify-content:space-between;color:#d5c9ce;font-size:12px;border-bottom:1px solid #51404a;padding-bottom:15px}
    .art-screen{height:220px;margin:20px 0;background:var(--paper);color:var(--ink);border-radius:13px;padding:20px;position:relative;overflow:hidden}
    .art-screen:before{content:"";position:absolute;right:-25px;bottom:-70px;width:210px;height:210px;border:18px solid #d8e9a0;border-radius:50%}
    .screen-label{font-size:11px;color:var(--wine);font-weight:900;letter-spacing:.1em}
    .screen-title{font-size:25px;font-weight:900;line-height:1.25;margin-top:18px;max-width:190px}
    .screen-bars{display:flex;gap:7px;margin-top:25px}
    .screen-bars i{display:block;height:7px;border-radius:4px;background:var(--wine);width:48px}
    .screen-bars i:nth-child(2){background:var(--acid-2);width:70px}
    .screen-status{position:absolute;right:18px;top:18px;background:#e5f5b3;color:#465d0b;padding:4px 8px;border-radius:5px;font-size:11px;font-weight:800}
    .art-bottom{display:flex;justify-content:space-between;color:#b8abb2;font-size:12px}
    .art-bottom strong{color:var(--acid)}
    .section{padding:88px 0}
    .section-head{display:flex;justify-content:space-between;align-items:end;gap:30px;margin-bottom:35px}
    .section h2{font-size:clamp(27px,3vw,40px);line-height:1.2;letter-spacing:-.035em;margin-top:9px}
    .section-lead{max-width:500px;color:var(--muted)}
    .download-panel{background:var(--wine);color:#fff;border-radius:var(--radius);padding:42px;display:grid;grid-template-columns:1.1fr .9fr;gap:45px;align-items:center;box-shadow:var(--shadow)}
    .download-panel h2{margin:8px 0 15px}
    .download-panel p{color:#e4d5dc}
    .download-list{display:grid;gap:12px;margin:25px 0 0;padding:0;list-style:none}
    .download-list li{border-top:1px solid #8b536b;padding:13px 0;color:#f0e7ea}
    .download-list b{color:var(--acid);margin-right:8px}
    .qr-area{background:#2b2028;border:1px solid #8b536b;border-radius:14px;padding:25px;text-align:center}
    .qr-box{height:148px;width:148px;margin:0 auto 18px;background:var(--paper);display:grid;place-items:center;position:relative}
    .qr-box:before{content:"PG";font-size:42px;font-weight:900;color:var(--wine);border:5px solid var(--wine);padding:8px}
    .qr-area small{color:#cdbdc5}
    .steps{display:grid;grid-template-columns:1fr 1fr;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
    .step{display:grid;grid-template-columns:60px 1fr;gap:16px;padding:25px 20px;border-bottom:1px solid var(--line)}
    .step:nth-child(odd){border-right:1px solid var(--line)}
    .step:nth-last-child(-n+2){border-bottom:0}
    .step-number{font-size:38px;line-height:1;color:var(--wine);font-weight:900}
    .step h3{font-size:17px;margin:0 0 5px}
    .step p{font-size:13px;color:var(--muted);margin:0}
    .feature-layout{display:grid;grid-template-columns:1.3fr .7fr;gap:18px}
    .feature-main,.feature-side article{border:1px solid var(--line);background:var(--white);border-radius:var(--radius);padding:29px;transition:var(--ease)}
    .feature-main{background:var(--ink-2);color:#fff;min-height:245px;position:relative;overflow:hidden}
    .feature-main:after{content:"APP";position:absolute;right:16px;bottom:-45px;font-size:150px;line-height:1;font-weight:900;color:#ffffff0b}
    .feature-main h3,.feature-main p{position:relative;z-index:1}
    .feature-main h3{font-size:27px;max-width:450px}
    .feature-main p{color:#d6c9cf;max-width:500px}
    .feature-side{display:grid;gap:18px}
    .feature-side article{display:flex;gap:18px;align-items:flex-start}
    .feature-side h3{font-size:17px;margin:0 0 4px}
    .feature-side p{font-size:13px;color:var(--muted);line-height:1.65;margin:0}
    .icon-box{width:38px;height:38px;flex:0 0 38px;display:grid;place-items:center;border-radius:9px;background:#e5f5b3;color:var(--wine);font-weight:900}
    .notice{background:var(--paper-2);border-left:4px solid var(--acid-2);padding:19px 23px;color:#51484e}
    .faq-wrap{display:grid;grid-template-columns:.75fr 1.25fr;gap:55px}
    .faq-intro{background:var(--wine);color:#fff;border-radius:var(--radius);padding:29px;align-self:start}
    .faq-intro p{color:#e4d5dc;margin-top:12px;font-size:14px}
    .faq-list{border-top:1px solid var(--line)}
    .faq-item{border-bottom:1px solid var(--line)}
    .faq-question{width:100%;border:0;background:transparent;text-align:left;padding:19px 4px;display:flex;justify-content:space-between;gap:20px;font-weight:800;color:var(--ink)}
    .faq-question span{color:var(--wine);font-size:20px;transition:var(--ease)}
    .faq-answer{display:none;color:var(--muted);font-size:14px;padding:0 35px 19px 4px}
    .faq-item.open .faq-answer{display:block}
    .faq-item.open .faq-question span{transform:rotate(45deg)}
    .cta{background:var(--ink);color:#fff;padding:48px;border-radius:var(--radius);display:flex;justify-content:space-between;align-items:center;gap:30px}
    .cta h2{font-size:32px;line-height:1.3;margin:0 0 8px}
    .cta p{color:#cfc5ca;margin:0}
    .site-footer{background:var(--ink);color:#fff;padding:52px 0 22px;margin-top:0;border-top:1px solid #41363e}
    .footer-top{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:35px;padding-bottom:42px}
    .footer-brand p{color:#b9adb3;max-width:300px;font-size:13px;margin-top:18px}
    .footer-title{font-weight:800;color:var(--acid);margin-bottom:15px}
    .footer-links{display:grid;gap:8px;color:#c8bdc2;font-size:13px}
    .footer-links a{transition:var(--ease)}
    .footer-links a:hover{color:var(--acid);padding-left:4px}
    .footer-bottom{border-top:1px solid #40363d;padding-top:18px;display:flex;justify-content:space-between;gap:20px;color:#91858d;font-size:12px}
    @media(max-width:1024px){.nav a{padding-left:7px;padding-right:7px}.header-inner{gap:15px}.hero-grid{gap:35px}.download-panel{gap:25px}.footer-top{grid-template-columns:1.5fr 1fr 1fr 1fr}}
    @media(max-width:768px){.site-header,.header-inner{height:70px}.header-inner{justify-content:space-between}.logo{min-width:0}.nav{display:none;position:absolute;top:70px;left:0;right:0;padding:12px 20px 20px;background:var(--ink);flex-direction:column;align-items:stretch;border-bottom:1px solid #51444d}.nav.open{display:flex}.nav a{padding:12px 4px}.header-cta{display:none}.menu-toggle{display:block}.hero{padding:58px 0 65px}.hero-grid,.download-panel,.faq-wrap{grid-template-columns:1fr}.hero h1{font-size:42px}.download-art{order:-1}.section{padding:65px 0}.section-head{display:block}.section-lead{margin-top:15px}.steps{grid-template-columns:1fr}.step,.step:nth-child(odd){border-right:0;border-bottom:1px solid var(--line)}.step:last-child{border-bottom:0}.feature-layout{grid-template-columns:1fr}.cta{display:block;padding:32px}.cta .btn{margin-top:25px}.footer-top{grid-template-columns:1fr 1fr}.footer-brand{grid-column:1/-1}}
    @media(max-width:520px){.container{width:min(100% - 32px,1180px)}.hero h1{font-size:35px}.hero-copy{font-size:15px}.download-panel{padding:25px 20px}.download-art{min-height:300px;padding:16px}.art-screen{height:185px}.section h2{font-size:29px}.footer-top{grid-template-columns:1fr}.footer-bottom{display:block}.footer-bottom span{display:block;margin-top:8px}.hero-actions .btn,.cta .btn{width:100%}}

/* roulang page: category3 */
:root{
      --ink:#171518;--ink-2:#211d22;--ink-3:#2d2630;--paper:#f3f0ec;
      --paper-2:#ebe6e2;--white:#fffdfa;--wine:#681f3b;--wine-deep:#48152d;
      --acid:#c9f54b;--acid-2:#a7d92f;--cyan:#83e8cf;--muted:#776f75;
      --line:#d8d0cc;--line-dark:#51444d;--radius:16px;
      --shadow:0 16px 34px rgba(28,18,25,.10);--ease:all .25s ease;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{margin:0;font-family:"Noto Sans SC","Microsoft YaHei",Arial,sans-serif;color:var(--ink);background:var(--paper);line-height:1.75;font-size:15px}
    a{color:inherit;text-decoration:none}
    img{max-width:100%;display:block}
    button,input,textarea{font:inherit}
    button{cursor:pointer}
    .container{width:min(1180px,calc(100% - 40px));margin:auto}
    .site-header{height:76px;background:var(--ink);color:#fff;position:relative;z-index:10;border-bottom:1px solid #3b333a}
    .header-inner{height:76px;display:flex;align-items:center;gap:30px}
    .logo{display:flex;align-items:center;gap:11px;min-width:245px}
    .logo-mark{width:34px;height:34px;background:var(--acid);color:var(--ink);display:grid;place-items:center;font-weight:900;font-size:17px;border-radius:8px;box-shadow:5px 5px 0 var(--wine)}
    .logo-text{font-size:15px;font-weight:800;line-height:1.2;letter-spacing:.01em}
    .logo-text small{display:block;color:var(--acid);font-size:10px;letter-spacing:.12em;margin-top:3px}
    .nav{display:flex;align-items:center;gap:4px;flex:1}
    .nav a{padding:9px 12px;color:#cfc8cc;font-size:13px;white-space:nowrap;border-bottom:2px solid transparent;transition:var(--ease)}
    .nav a:hover,.nav a.active{color:var(--acid);border-bottom-color:var(--acid)}
    .header-cta{background:var(--acid);color:var(--ink);padding:10px 17px;font-weight:800;font-size:13px;border-radius:8px;transition:var(--ease);white-space:nowrap}
    .header-cta:hover,.btn-primary:hover{background:var(--acid-2);transform:translateY(-2px)}
    .menu-toggle{display:none;background:none;border:1px solid var(--line-dark);color:#fff;padding:7px 10px;border-radius:7px}
    .btn{display:inline-flex;justify-content:center;align-items:center;min-height:46px;padding:11px 21px;border-radius:9px;font-weight:800;font-size:14px;border:1px solid transparent;transition:var(--ease)}
    .btn:focus,.header-cta:focus,.nav a:focus,.faq-question:focus{outline:3px solid var(--cyan);outline-offset:3px}
    .btn-primary{background:var(--acid);color:var(--ink)}
    .btn-secondary{border-color:#746671;color:#fff;background:#302730}
    .btn-secondary:hover{border-color:var(--acid);color:var(--acid);transform:translateY(-2px)}
    .hero{background:var(--ink);color:#fff;padding:72px 0 78px;position:relative;overflow:hidden}
    .hero:after{content:"NEWS";position:absolute;right:-18px;bottom:-45px;font-size:150px;font-weight:900;letter-spacing:-.08em;color:#ffffff08;transform:rotate(-8deg)}
    .hero-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:70px;align-items:center;position:relative;z-index:1}
    .eyebrow,.section-kicker{color:var(--acid);font-weight:800;letter-spacing:.08em;font-size:12px}
    .hero h1{font-size:clamp(32px,4.2vw,56px);line-height:1.14;letter-spacing:-.045em;margin:18px 0 20px;max-width:680px}
    .hero-copy{color:#cfc5ca;max-width:620px;font-size:17px;line-height:1.9}
    .hero-actions{display:flex;gap:12px;margin-top:30px;flex-wrap:wrap}
    .hero-note{display:flex;gap:20px;margin-top:25px;color:#a99da4;font-size:12px;flex-wrap:wrap}
    .hero-note span:before{content:"●";color:var(--acid);margin-right:7px}
    .news-console{background:#292329;border:1px solid #54434e;border-radius:18px;padding:20px;box-shadow:18px 18px 0 #48152d}
    .console-top{display:flex;justify-content:space-between;border-bottom:1px solid #51444d;padding-bottom:15px;color:#cfc5ca;font-size:12px}
    .live-dot{color:var(--acid);font-weight:800}
    .live-dot:before{content:"";display:inline-block;width:7px;height:7px;background:var(--acid);border-radius:50%;margin-right:7px}
    .console-date{font-size:54px;line-height:1;color:var(--acid);font-weight:900;margin:24px 0 6px}
    .console-title{font-size:22px;font-weight:800;color:#fff;margin-bottom:15px}
    .console-line{display:flex;justify-content:space-between;gap:15px;padding:12px 0;border-top:1px solid #51444d;color:#bcb0b6;font-size:13px}
    .console-line strong{color:#fff}
    .section{padding:88px 0}
    .section-head{display:flex;justify-content:space-between;align-items:end;gap:30px;margin-bottom:32px}
    .section h2{font-size:clamp(27px,3vw,40px);line-height:1.2;letter-spacing:-.035em;margin:9px 0 0}
    .section-lead{max-width:500px;color:var(--muted)}
    .topic-band{display:grid;grid-template-columns:1.35fr .65fr;gap:18px}
    .topic-main,.topic-side article{border:1px solid var(--line);background:var(--white);border-radius:var(--radius);padding:29px;transition:var(--ease)}
    .topic-main{background:var(--wine);color:#fff;min-height:245px;position:relative;overflow:hidden}
    .topic-main:after{content:"01";position:absolute;right:22px;bottom:-40px;font-size:170px;font-weight:900;color:#ffffff0b}
    .topic-main h3{font-size:28px;position:relative;z-index:1;max-width:450px}
    .topic-main p{color:#e3d6dc;max-width:520px;position:relative;z-index:1}
    .topic-side{display:grid;gap:18px}
    .topic-side article{display:flex;gap:17px;align-items:flex-start}
    .topic-side article:hover,.news-row:hover,.index-link:hover{transform:translateY(-3px);box-shadow:var(--shadow)}
    .icon-box{flex:0 0 42px;height:42px;border-radius:10px;background:#e8f6b8;color:var(--wine);display:grid;place-items:center;font-weight:900}
    .topic-side h3{font-size:17px;margin:0 0 4px}
    .topic-side p{font-size:13px;color:var(--muted);line-height:1.65;margin:0}
    .news-layout{display:grid;grid-template-columns:1fr 285px;gap:28px;align-items:start}
    .news-list{background:var(--white);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden}
    .news-row{display:grid;grid-template-columns:112px 1fr 28px;gap:24px;align-items:center;padding:24px 27px;border-bottom:1px solid var(--line);transition:var(--ease)}
    .news-row:last-child{border-bottom:0}
    .news-date{font-size:12px;color:var(--wine);font-weight:900;letter-spacing:.04em}
    .tag{display:inline-block;padding:3px 9px;border-radius:5px;background:#e5f5b3;color:#465d0b;font-size:11px;font-weight:800;margin-right:8px}
    .news-title{font-weight:800;font-size:17px;margin-bottom:4px}
    .news-summary{color:var(--muted);font-size:13px;line-height:1.65}
    .news-arrow{text-align:right;color:var(--wine);font-size:21px;font-weight:900}
    .filter-panel{background:var(--ink-2);color:#fff;border-radius:var(--radius);padding:25px;position:sticky;top:20px}
    .filter-panel h3{font-size:20px;margin:0 0 14px}
    .filter-panel p{font-size:13px;color:#c9bec3;margin-bottom:20px}
    .filter-list{display:grid;gap:9px}
    .filter-list a{padding:12px 14px;border:1px solid #51444d;border-radius:8px;color:#d6cbd0;font-size:13px;transition:var(--ease)}
    .filter-list a:hover,.filter-list a.active{border-color:var(--acid);color:var(--acid);background:#342b31}
    .timeline{border-left:2px solid var(--wine);margin-left:12px;padding-left:28px;display:grid;gap:24px}
    .timeline-item{position:relative;background:var(--white);border:1px solid var(--line);border-radius:12px;padding:20px 24px}
    .timeline-item:before{content:"";position:absolute;left:-36px;top:27px;width:13px;height:13px;border-radius:50%;background:var(--acid);border:3px solid var(--paper)}
    .timeline-item strong{color:var(--wine);font-size:13px}
    .timeline-item h3{margin:7px 0 5px;font-size:18px}
    .timeline-item p{margin:0;color:var(--muted);font-size:14px}
    .index-grid{display:grid;grid-template-columns:repeat(5,1fr);gap:10px}
    .index-link{background:var(--white);border:1px solid var(--line);padding:20px 16px;border-radius:12px;transition:var(--ease)}
    .index-link b{display:block;color:var(--wine);font-size:25px;line-height:1;margin-bottom:15px}
    .index-link span{font-weight:800;font-size:14px}
    .index-link small{display:block;color:var(--muted);font-size:12px;margin-top:6px;line-height:1.5}
    .faq-wrap{display:grid;grid-template-columns:.75fr 1.25fr;gap:55px}
    .faq-intro{background:var(--wine);color:#fff;border-radius:var(--radius);padding:29px;align-self:start}
    .faq-intro p{color:#e4d5dc;margin-top:12px;font-size:14px}
    .faq-list{border-top:1px solid var(--line)}
    .faq-item{border-bottom:1px solid var(--line)}
    .faq-question{width:100%;border:0;background:transparent;text-align:left;padding:19px 4px;display:flex;justify-content:space-between;gap:20px;font-weight:800;color:var(--ink)}
    .faq-question span{color:var(--wine);font-size:20px;transition:var(--ease)}
    .faq-answer{display:none;color:var(--muted);font-size:14px;padding:0 35px 19px 4px}
    .faq-item.open .faq-answer{display:block}
    .faq-item.open .faq-question span{transform:rotate(45deg)}
    .cta{background:var(--ink);color:#fff;padding:54px 0}
    .cta-inner{display:flex;justify-content:space-between;align-items:center;gap:30px}
    .cta h2{font-size:32px;line-height:1.25;margin:0 0 10px}
    .cta p{color:#c9bec3;margin:0}
    .cta-actions{display:flex;gap:12px;flex-wrap:wrap}
    .site-footer{background:#100f11;color:#fff;padding:54px 0 22px;border-top:1px solid #3b333a}
    .footer-top{display:grid;grid-template-columns:1.7fr 1fr 1fr 1fr;gap:35px;padding-bottom:43px}
    .footer-brand p{color:#a99da4;font-size:13px;max-width:290px;margin-top:18px}
    .footer-title{font-size:13px;color:var(--acid);font-weight:800;margin-bottom:14px}
    .footer-links{display:grid;gap:8px;color:#bdb2b7;font-size:13px}
    .footer-links a:hover{color:var(--acid)}
    .footer-bottom{border-top:1px solid #342d33;padding-top:19px;display:flex;justify-content:space-between;gap:20px;color:#857980;font-size:11px}
    @media(max-width:1024px){
      .nav a{padding-left:7px;padding-right:7px}.header-inner{gap:12px}.logo{min-width:220px}
      .hero-grid{gap:35px}.index-grid{grid-template-columns:repeat(3,1fr)}
    }
    @media(max-width:768px){
      .site-header,.header-inner{height:70px}.container{width:min(100% - 32px,600px)}
      .header-inner{justify-content:space-between}.logo{min-width:0}.logo-text{font-size:13px}
      .menu-toggle{display:block}.nav{display:none;position:absolute;top:70px;left:0;right:0;background:var(--ink);padding:12px 16px 18px;border-bottom:1px solid #51444d;flex-direction:column;align-items:stretch}
      .nav.show{display:flex}.nav a{padding:12px 8px}.header-cta{display:none}
      .hero{padding:56px 0 65px}.hero-grid,.topic-band,.news-layout,.faq-wrap{grid-template-columns:1fr}
      .news-console{max-width:520px}.section{padding:64px 0}.section-head,.cta-inner{display:block}
      .section-head .section-lead{margin-top:14px}.filter-panel{position:static}
      .footer-top{grid-template-columns:1fr 1fr}.footer-bottom{display:block}.footer-bottom span{display:block;margin-top:8px}
    }
    @media(max-width:520px){
      .hero h1{font-size:34px}.hero-copy{font-size:15px}.hero-actions .btn{width:100%}
      .console-date{font-size:43px}.news-row{grid-template-columns:1fr 24px;gap:7px;padding:20px}
      .news-date{grid-column:1 / -1}.index-grid{grid-template-columns:1fr 1fr}
      .cta h2{font-size:27px}.cta-actions{margin-top:22px}.cta-actions .btn{width:100%}
      .footer-top{grid-template-columns:1fr;gap:25px}.logo-text small{font-size:9px}
    }

/* roulang page: category4 */
:root{
      --ink:#171518;--ink-2:#211d22;--ink-3:#2d2630;--paper:#f3f0ec;
      --paper-2:#ebe6e2;--white:#fffdfa;--wine:#681f3b;--wine-deep:#48152d;
      --acid:#c9f54b;--acid-2:#a7d92f;--cyan:#83e8cf;--muted:#776f75;
      --line:#d8d0cc;--line-dark:#51444d;--radius:16px;
      --shadow:0 16px 34px rgba(28,18,25,.10);--ease:all .25s ease;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{margin:0;font-family:"Noto Sans SC","Microsoft YaHei",Arial,sans-serif;color:var(--ink);background:var(--paper);line-height:1.75;font-size:15px}
    a{color:inherit;text-decoration:none}
    img{max-width:100%;display:block}
    button,input,textarea{font:inherit}
    button{cursor:pointer}
    .container{width:min(1180px,calc(100% - 40px));margin:auto}
    .site-header{height:76px;background:var(--ink);color:#fff;border-bottom:1px solid #3b333a;position:relative;z-index:10}
    .header-inner{height:76px;display:flex;align-items:center;gap:28px}
    .logo{display:flex;align-items:center;gap:11px;min-width:245px}
    .logo-mark{width:34px;height:34px;background:var(--acid);color:var(--ink);display:grid;place-items:center;font-weight:900;font-size:17px;border-radius:8px;box-shadow:5px 5px 0 var(--wine)}
    .logo-text{font-size:15px;font-weight:800;line-height:1.2;letter-spacing:.01em}
    .logo-text small{display:block;color:var(--acid);font-size:10px;letter-spacing:.1em;margin-top:3px}
    .nav{display:flex;align-items:center;gap:4px;flex:1}
    .nav a{padding:9px 11px;color:#cfc8cc;font-size:13px;white-space:nowrap;border-bottom:2px solid transparent;transition:var(--ease)}
    .nav a:hover,.nav a.active{color:var(--acid);border-bottom-color:var(--acid)}
    .header-cta{background:var(--acid);color:var(--ink);padding:10px 17px;font-weight:800;font-size:13px;border-radius:8px;transition:var(--ease);white-space:nowrap}
    .header-cta:hover{background:var(--acid-2);transform:translateY(-2px)}
    .menu-toggle{display:none;background:none;border:1px solid var(--line-dark);color:#fff;padding:7px 10px;border-radius:7px}
    .hero{background:var(--ink);color:#fff;padding:66px 0 72px;position:relative;overflow:hidden}
    .hero:after{content:"";position:absolute;right:-130px;top:-160px;width:540px;height:540px;border:1px solid #513444;border-radius:50%;box-shadow:0 0 0 30px #2a2028,0 0 0 31px #513444,0 0 0 86px #241d24,0 0 0 87px #513444;opacity:.65}
    .hero-inner{position:relative;z-index:1;max-width:850px}
    .eyebrow,.section-kicker{color:var(--acid);font-weight:800;letter-spacing:.08em;font-size:12px}
    .hero h1{font-size:clamp(32px,4.8vw,58px);line-height:1.14;letter-spacing:-.045em;margin:17px 0 20px}
    .hero-copy{color:#cfc5ca;max-width:720px;font-size:17px;line-height:1.9}
    .hero-actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:29px}
    .btn{display:inline-flex;justify-content:center;align-items:center;min-height:46px;padding:11px 21px;border-radius:9px;font-weight:800;font-size:14px;border:1px solid transparent;transition:var(--ease)}
    .btn:focus,.header-cta:focus,.nav a:focus,.faq-question:focus{outline:3px solid var(--cyan);outline-offset:3px}
    .btn-primary{background:var(--acid);color:var(--ink)}
    .btn-primary:hover{background:var(--acid-2);transform:translateY(-2px)}
    .btn-secondary{border-color:#746671;color:#fff;background:#302730}
    .btn-secondary:hover{border-color:var(--acid);color:var(--acid);transform:translateY(-2px)}
    .hero-note{display:flex;gap:22px;margin-top:25px;color:#a99da4;font-size:12px;flex-wrap:wrap}
    .hero-note span:before{content:"●";color:var(--acid);margin-right:7px}
    .section{padding:88px 0}
    .section-dark{background:var(--ink-2);color:#fff}
    .section-head{display:flex;justify-content:space-between;align-items:end;gap:30px;margin-bottom:34px}
    .section h2{font-size:clamp(27px,3vw,40px);line-height:1.2;letter-spacing:-.035em;margin:8px 0 0}
    .section-lead{max-width:500px;color:var(--muted)}
    .section-dark .section-lead{color:#c9bec3}
    .guide-grid{display:grid;grid-template-columns:1.12fr .88fr;gap:18px}
    .guide-feature{background:var(--wine);color:#fff;border-radius:var(--radius);padding:34px;min-height:310px;position:relative;overflow:hidden}
    .guide-feature:after{content:"GUIDE";position:absolute;right:-15px;bottom:-25px;font-size:74px;font-weight:900;color:#fff1;letter-spacing:.08em}
    .guide-feature h3{font-size:28px;line-height:1.3;max-width:450px;position:relative;z-index:1}
    .guide-feature p{color:#e3d6dc;max-width:500px;position:relative;z-index:1}
    .guide-index{display:grid;grid-template-columns:repeat(2,1fr);gap:12px}
    .index-card{background:var(--white);border:1px solid var(--line);border-radius:13px;padding:22px;transition:var(--ease)}
    .index-card:hover{transform:translateY(-4px);box-shadow:var(--shadow);border-color:var(--wine)}
    .index-card b{display:block;font-size:25px;color:var(--wine);line-height:1;margin-bottom:13px}
    .index-card h3{font-size:17px;margin:0 0 5px}
    .index-card p{font-size:13px;color:var(--muted);margin:0;line-height:1.65}
    .step-list{border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
    .step{display:grid;grid-template-columns:78px 1fr 220px;gap:26px;align-items:center;padding:25px 0;border-bottom:1px solid var(--line)}
    .step:last-child{border-bottom:0}
    .step-no{font-size:40px;color:var(--wine);font-weight:900;line-height:1}
    .step h3{font-size:19px;margin:0 0 5px}
    .step p{color:var(--muted);margin:0}
    .step-tip{background:var(--paper-2);border-left:3px solid var(--acid-2);padding:12px 15px;font-size:13px;color:#5b5558}
    .settings-layout{display:grid;grid-template-columns:.85fr 1.15fr;gap:45px;align-items:start}
    .settings-panel{background:var(--ink);color:#fff;border-radius:var(--radius);padding:30px;box-shadow:var(--shadow)}
    .settings-row{display:flex;justify-content:space-between;gap:20px;padding:17px 0;border-bottom:1px solid var(--line-dark)}
    .settings-row:last-child{border-bottom:0}
    .settings-row span:first-child{color:#d5cbd0}
    .status{color:var(--acid);font-weight:800;font-size:13px}
    .notice-list{display:grid;gap:14px}
    .notice{display:flex;gap:16px;align-items:flex-start;background:var(--white);border:1px solid var(--line);border-radius:12px;padding:19px}
    .notice-mark{width:28px;height:28px;border-radius:7px;background:#e5f5b3;color:#465d0b;display:grid;place-items:center;font-weight:900;flex:none}
    .notice h3{font-size:16px;margin:0 0 4px}
    .notice p{font-size:13px;color:var(--muted);margin:0}
    .faq-wrap{display:grid;grid-template-columns:.75fr 1.25fr;gap:55px}
    .faq-intro{background:var(--wine);color:#fff;border-radius:var(--radius);padding:29px;align-self:start}
    .faq-intro p{color:#e4d5dc;margin-top:12px;font-size:14px}
    .faq-list{border-top:1px solid var(--line)}
    .faq-item{border-bottom:1px solid var(--line)}
    .faq-question{width:100%;border:0;background:transparent;text-align:left;padding:19px 4px;display:flex;justify-content:space-between;gap:20px;font-weight:800;color:var(--ink)}
    .faq-question span{color:var(--wine);font-size:20px;transition:var(--ease)}
    .faq-answer{display:none;color:var(--muted);font-size:14px;padding:0 35px 19px 4px}
    .faq-item.open .faq-answer{display:block}
    .faq-item.open .faq-question span{transform:rotate(45deg)}
    .cta{background:var(--acid);padding:48px 0}
    .cta-inner{display:flex;justify-content:space-between;align-items:center;gap:30px}
    .cta h2{font-size:clamp(25px,3vw,38px);margin:0 0 7px;line-height:1.2}
    .cta p{margin:0;color:#475219}
    .cta .btn-secondary{background:var(--ink);border-color:var(--ink)}
    .site-footer{background:var(--ink);color:#fff;padding:57px 0 22px}
    .footer-top{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:32px;padding-bottom:40px}
    .footer-brand p{color:#aaa0a5;font-size:13px;max-width:285px;margin-top:18px}
    .footer-title{font-weight:800;color:var(--acid);font-size:13px;margin-bottom:13px}
    .footer-links{display:grid;gap:8px;color:#cfc8cc;font-size:13px}
    .footer-links a{transition:var(--ease)}
    .footer-links a:hover{color:var(--acid);padding-left:4px}
    .footer-bottom{border-top:1px solid #3b333a;padding-top:18px;display:flex;justify-content:space-between;gap:20px;color:#968b91;font-size:12px}
    @media(max-width:1024px){
      .nav a{padding-left:7px;padding-right:7px}
      .logo{min-width:220px}.header-inner{gap:14px}
      .step{grid-template-columns:65px 1fr 180px}
    }
    @media(max-width:768px){
      .site-header,.header-inner{height:70px}.header-inner{justify-content:space-between}
      .nav{display:none;position:absolute;left:20px;right:20px;top:70px;background:var(--ink-2);padding:12px;flex-direction:column;align-items:stretch;border:1px solid var(--line-dark);border-radius:0 0 12px 12px}
      .nav.show{display:flex}.nav a{padding:12px;border-bottom:1px solid #3b333a}
      .menu-toggle{display:block}.header-cta{display:none}.logo{min-width:0}
      .hero{padding:52px 0 60px}.hero h1{font-size:38px}
      .section{padding:65px 0}.section-head{display:block}.section-lead{margin-top:15px}
      .guide-grid,.settings-layout,.faq-wrap{grid-template-columns:1fr;gap:18px}
      .step{grid-template-columns:55px 1fr;gap:16px}.step-tip{grid-column:2}
      .cta-inner{display:block}.cta .btn{margin-top:20px}
      .footer-top{grid-template-columns:1fr 1fr}.footer-brand{grid-column:1/-1}
      .footer-bottom{display:block}.footer-bottom span{display:block;margin-top:7px}
    }
    @media(max-width:520px){
      .container{width:min(100% - 32px,1180px)}
      .logo-text{font-size:13px}.logo-text small{font-size:9px}
      .hero h1{font-size:32px}.hero-copy{font-size:15px}
      .hero-actions .btn{width:100%}.guide-index{grid-template-columns:1fr}
      .guide-feature{padding:25px}.step{display:block;padding:22px 0}.step-no{margin-bottom:10px}.step-tip{margin-top:13px}
      .settings-row{font-size:13px}.footer-top{grid-template-columns:1fr}
    }

/* roulang page: category5 */
:root{
      --ink:#171518;--ink-2:#211d22;--ink-3:#2d2630;--paper:#f3f0ec;
      --paper-2:#ebe6e2;--white:#fffdfa;--wine:#681f3b;--wine-deep:#48152d;
      --acid:#c9f54b;--acid-2:#a7d92f;--cyan:#83e8cf;--muted:#776f75;
      --line:#d8d0cc;--line-dark:#51444d;--radius:16px;
      --shadow:0 16px 34px rgba(28,18,25,.10);--ease:all .25s ease;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{margin:0;font-family:"Noto Sans SC","Microsoft YaHei",Arial,sans-serif;color:var(--ink);background:var(--paper);line-height:1.75;font-size:15px}
    a{color:inherit;text-decoration:none}
    img{display:block;max-width:100%}
    button,input,textarea,select{font:inherit}
    button{cursor:pointer}
    .container{width:min(1180px,calc(100% - 40px));margin:auto}
    .site-header{height:76px;background:var(--ink);color:#fff;position:relative;z-index:10;border-bottom:1px solid #3b333a}
    .header-inner{height:76px;display:flex;align-items:center;gap:30px}
    .logo{display:flex;align-items:center;gap:11px;min-width:245px}
    .logo-mark{width:34px;height:34px;background:var(--acid);color:var(--ink);display:grid;place-items:center;font-weight:900;font-size:17px;border-radius:8px;box-shadow:5px 5px 0 var(--wine)}
    .logo-text{font-size:15px;font-weight:800;line-height:1.2;letter-spacing:.01em}
    .logo-text small{display:block;color:var(--acid);font-size:10px;letter-spacing:.12em;margin-top:3px}
    .nav{display:flex;align-items:center;gap:4px;flex:1}
    .nav a{padding:9px 12px;color:#cfc8cc;font-size:13px;white-space:nowrap;border-bottom:2px solid transparent;transition:var(--ease)}
    .nav a:hover,.nav a.active{color:var(--acid);border-bottom-color:var(--acid)}
    .header-cta{background:var(--acid);color:var(--ink);padding:10px 17px;font-weight:800;font-size:13px;border-radius:8px;transition:var(--ease);white-space:nowrap}
    .header-cta:hover{background:var(--acid-2);transform:translateY(-2px)}
    .menu-toggle{display:none;background:none;border:1px solid var(--line-dark);color:#fff;padding:7px 10px;border-radius:7px}
    .hero{background:var(--ink);color:#fff;padding:64px 0 70px;position:relative;overflow:hidden}
    .hero:after{content:"?";position:absolute;right:8%;top:-85px;color:#ffffff09;font-size:430px;font-weight:900;line-height:1}
    .hero-inner{position:relative;z-index:1;max-width:820px}
    .eyebrow,.section-kicker{color:var(--acid);font-weight:800;letter-spacing:.08em;font-size:12px}
    .hero h1{font-size:clamp(32px,4.3vw,56px);line-height:1.15;letter-spacing:-.045em;margin:18px 0 20px}
    .hero p{color:#cfc5ca;max-width:700px;font-size:17px;line-height:1.9;margin:0}
    .hero-actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:28px}
    .btn{display:inline-flex;justify-content:center;align-items:center;min-height:46px;padding:11px 21px;border-radius:9px;font-weight:800;font-size:14px;border:1px solid transparent;transition:var(--ease)}
    .btn:focus,.header-cta:focus,.nav a:focus,.faq-question:focus,input:focus,textarea:focus,select:focus{outline:3px solid var(--cyan);outline-offset:3px}
    .btn-primary{background:var(--acid);color:var(--ink)}
    .btn-primary:hover{background:var(--acid-2);transform:translateY(-2px)}
    .btn-secondary{border-color:#746671;color:#fff;background:#302730}
    .btn-secondary:hover{border-color:var(--acid);color:var(--acid);transform:translateY(-2px)}
    .hero-tags{display:flex;gap:9px;flex-wrap:wrap;margin-top:28px}
    .hero-tags span,.tag{display:inline-block;padding:4px 10px;border-radius:5px;background:#e5f5b3;color:#465d0b;font-size:11px;font-weight:800}
    .section{padding:86px 0}
    .section-head{display:flex;justify-content:space-between;align-items:end;gap:30px;margin-bottom:32px}
    .section h2{font-size:clamp(27px,3vw,40px);line-height:1.2;letter-spacing:-.035em;margin:9px 0 0}
    .section-lead{max-width:510px;color:var(--muted);margin:0}
    .topic-bar{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:38px}
    .topic-bar a{padding:10px 16px;border:1px solid var(--line);background:var(--white);border-radius:8px;font-weight:800;font-size:13px;transition:var(--ease)}
    .topic-bar a:hover,.topic-bar a.active{background:var(--wine);color:#fff;border-color:var(--wine)}
    .faq-layout{display:grid;grid-template-columns:.72fr 1.28fr;gap:52px;align-items:start}
    .faq-intro{background:var(--wine);color:#fff;border-radius:var(--radius);padding:31px;position:sticky;top:20px}
    .faq-intro h2{font-size:28px;margin:8px 0 14px}
    .faq-intro p{color:#e4d5dc;margin:0 0 23px}
    .support-points{list-style:none;padding:0;margin:0;border-top:1px solid #8b536b}
    .support-points li{padding:13px 0;border-bottom:1px solid #8b536b;color:#f5eaf0;font-size:13px}
    .support-points b{color:var(--acid);margin-right:8px}
    .faq-list{border-top:1px solid var(--line)}
    .faq-item{border-bottom:1px solid var(--line)}
    .faq-question{width:100%;border:0;background:transparent;text-align:left;padding:19px 4px;display:flex;justify-content:space-between;gap:20px;font-weight:800;color:var(--ink)}
    .faq-question span{color:var(--wine);font-size:21px;transition:var(--ease)}
    .faq-answer{display:none;color:var(--muted);font-size:14px;padding:0 35px 20px 4px}
    .faq-item.open .faq-answer{display:block}
    .faq-item.open .faq-question span{transform:rotate(45deg)}
    .form-section{background:var(--paper-2)}
    .form-layout{display:grid;grid-template-columns:.8fr 1.2fr;gap:60px}
    .form-copy h2{font-size:34px;line-height:1.25;margin:9px 0 15px}
    .form-copy p{color:var(--muted)}
    .form-note{border-left:3px solid var(--acid-2);padding-left:14px;margin-top:24px;font-size:13px;color:var(--muted)}
    .feedback-form{background:var(--white);padding:30px;border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow)}
    .field-grid{display:grid;grid-template-columns:1fr 1fr;gap:18px}
    .field{margin-bottom:18px}
    label{display:block;font-size:13px;font-weight:800;margin-bottom:7px}
    input,textarea,select{width:100%;border:1px solid var(--line);background:#fff;padding:11px 13px;border-radius:8px;color:var(--ink);transition:var(--ease)}
    textarea{min-height:125px;resize:vertical}
    input:focus,textarea:focus,select:focus{border-color:var(--wine);box-shadow:0 0 0 2px #681f3b22}
    .form-status{display:none;margin-top:16px;padding:12px 14px;border-radius:8px;background:#e5f5b3;color:#40570c;font-size:13px}
    .form-status.show{display:block}
    .cta-band{background:var(--ink-2);color:#fff;padding:48px 0}
    .cta-inner{display:flex;justify-content:space-between;align-items:center;gap:28px}
    .cta-inner h2{font-size:30px;margin:0 0 7px}
    .cta-inner p{color:#cfc5ca;margin:0}
    .site-footer{background:var(--ink);color:#fff;padding:54px 0 22px;border-top:1px solid #3b333a}
    .footer-top{display:grid;grid-template-columns:1.7fr 1fr 1fr 1fr;gap:35px;padding-bottom:42px}
    .footer-brand p{color:#aaa0a6;font-size:13px;max-width:285px;margin-top:17px}
    .footer-title{font-weight:800;color:var(--acid);font-size:13px;margin-bottom:14px}
    .footer-links{display:grid;gap:9px;color:#cfc5ca;font-size:13px}
    .footer-links a:hover{color:var(--acid)}
    .footer-bottom{display:flex;justify-content:space-between;gap:20px;border-top:1px solid #3b333a;padding-top:19px;color:#91868d;font-size:11px}
    @media(max-width:1024px){.nav a{padding-left:7px;padding-right:7px}.header-inner{gap:12px}.logo{min-width:220px}.faq-layout,.form-layout{gap:30px}.footer-top{grid-template-columns:1.4fr 1fr 1fr}}
    @media(max-width:768px){
      .site-header,.header-inner{height:68px}.header-inner{justify-content:space-between}.logo{min-width:0}.logo-text{font-size:13px}.logo-text small{font-size:9px}.header-cta{display:none}.menu-toggle{display:block}.nav{display:none;position:absolute;top:68px;left:0;right:0;background:var(--ink);padding:12px 20px 18px;flex-direction:column;align-items:stretch;border-bottom:1px solid #493b44}.nav.open{display:flex}.nav a{padding:11px 4px}.hero{padding:52px 0 58px}.section{padding:64px 0}.section-head{display:block}.section-lead{margin-top:14px}.faq-layout,.form-layout{grid-template-columns:1fr}.faq-intro{position:static}.field-grid{grid-template-columns:1fr;gap:0}.cta-inner{display:block}.cta-inner .btn{margin-top:22px}.footer-top{grid-template-columns:1fr 1fr;gap:30px}.footer-brand{grid-column:1/-1}}
    @media(max-width:520px){.container{width:min(100% - 32px,1180px)}.hero h1{font-size:34px}.hero p{font-size:15px}.hero-actions .btn{width:100%}.topic-bar a{flex:1;text-align:center}.feedback-form{padding:21px}.footer-top{grid-template-columns:1fr}.footer-bottom{display:block}.footer-bottom span{display:block;margin-top:8px}}

/* roulang: framework shim */
/* 覆盖 Bootstrap 等对 a/btn 的全局默认，避免导航出现下划线/蓝链 */
.site-header a,.site-header a:hover,.navbar a,.navbar a:hover,.nav-links a,.nav-links a:hover,header nav a,header nav a:hover{text-decoration:none}
.site-header .btn,.navbar .btn,.nav-cta{text-decoration:none}