/* roulang page: index */
:root{
  --ink:#171816;
  --night:#20221f;
  --night-soft:#292c27;
  --paper:#f5f1e9;
  --paper-strong:#fffdf8;
  --orange:#d98736;
  --orange-deep:#b96322;
  --mint:#8bb7a6;
  --muted:#777a71;
  --line:#dcd7cb;
  --white:#fffdf8;
  --shadow:0 18px 48px rgba(29,29,23,.12);
  --soft-shadow:0 8px 24px rgba(29,29,23,.08);
  --radius:18px;
  --container:1200px;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:"Noto Sans SC","PingFang SC","Microsoft YaHei",sans-serif;color:var(--ink);background:var(--paper);line-height:1.7;font-size:16px}
a{color:inherit;text-decoration:none}
button,input{font:inherit}
button{cursor:pointer}
img{display:block;max-width:100%}
.container{width:min(calc(100% - 48px),var(--container));margin:0 auto}
.site-header{height:82px;background:rgba(32,34,31,.97);color:var(--white);display:flex;align-items:center;position:sticky;top:0;z-index:20;border-bottom:1px solid rgba(255,255,255,.08)}
.header-inner{display:flex;align-items:center;justify-content:space-between;gap:26px}
.logo{font-weight:800;font-size:21px;letter-spacing:-.04em;white-space:nowrap;display:flex;align-items:center;gap:10px}
.logo-mark{width:35px;height:35px;border-radius:10px;background:var(--orange);display:grid;place-items:center;color:var(--night);font-weight:900;font-size:18px}
.logo small{display:block;color:#b7bbb0;font-size:10px;letter-spacing:.08em;line-height:1.2;margin-top:1px}
.main-nav{display:flex;align-items:center;gap:3px}
.main-nav a{color:#d9dbd3;font-size:14px;padding:9px 11px;border-radius:9px;transition:.25s}
.main-nav a:hover,.main-nav a.active{color:#fff;background:rgba(217,135,54,.16)}
.main-nav a.active{box-shadow:inset 0 -2px var(--orange)}
.header-action{flex:none}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:9px;min-height:46px;padding:0 20px;border-radius:11px;border:1px solid transparent;font-weight:700;transition:transform .25s,background .25s,box-shadow .25s}
.btn:hover{transform:translateY(-2px)}
.btn:focus-visible,.main-nav a:focus-visible,.menu-toggle:focus-visible{outline:3px solid rgba(217,135,54,.45);outline-offset:3px}
.btn-primary{background:var(--orange);color:var(--night);box-shadow:0 7px 18px rgba(217,135,54,.22)}
.btn-primary:hover{background:#e49a4e;box-shadow:0 10px 24px rgba(217,135,54,.3)}
.btn-ghost{border-color:rgba(255,255,255,.3);color:var(--white)}
.btn-ghost:hover{border-color:var(--orange);color:var(--orange)}
.btn-dark{background:var(--night);color:var(--white)}
.menu-toggle{display:none;border:0;background:transparent;color:var(--white);font-size:25px;padding:8px}
.hero{background:var(--night);color:var(--white);position:relative;overflow:hidden;padding:92px 0 88px}
.hero:before{content:"";position:absolute;width:520px;height:520px;border:1px solid rgba(217,135,54,.22);border-radius:50%;right:-120px;top:-190px}
.hero:after{content:"";position:absolute;width:260px;height:260px;border:1px solid rgba(139,183,166,.2);border-radius:50%;right:100px;bottom:-170px}
.hero-grid{display:grid;grid-template-columns:1.05fr .95fr;align-items:center;gap:80px;position:relative;z-index:1}
.eyebrow{color:var(--orange);font-weight:800;font-size:13px;letter-spacing:.12em;margin-bottom:18px}
.hero h1{font-size:clamp(38px,5vw,64px);line-height:1.16;letter-spacing:-.055em;max-width:700px}
.hero h1 em{color:var(--orange);font-style:normal}
.hero-copy{color:#c6c9c1;max-width:600px;margin:22px 0 30px;font-size:18px}
.hero-buttons{display:flex;gap:13px;flex-wrap:wrap}
.hero-art{min-height:380px;position:relative;display:flex;align-items:center;justify-content:center}
.art-panel{width:340px;height:280px;background:#34372f;border:1px solid rgba(255,255,255,.12);border-radius:24px;transform:rotate(-5deg);box-shadow:0 30px 60px rgba(0,0,0,.3);padding:25px;position:relative}
.art-panel:before{content:"J9";font-size:110px;line-height:1;color:rgba(217,135,54,.16);font-weight:900;position:absolute;right:18px;bottom:4px}
.art-top{display:flex;justify-content:space-between;color:#d6d8d0;font-size:12px;border-bottom:1px solid #51544b;padding-bottom:17px}
.art-line{height:10px;border-radius:20px;background:#565a50;margin-top:20px;width:73%}
.art-line.short{width:48%;background:var(--orange)}
.art-badge{position:absolute;right:-45px;top:42px;background:var(--orange);color:var(--night);padding:14px 16px;border-radius:13px;transform:rotate(10deg);font-weight:900;box-shadow:var(--soft-shadow)}
.art-stamp{position:absolute;left:-36px;bottom:25px;border:1px solid var(--mint);color:var(--mint);padding:10px 13px;border-radius:10px;background:var(--night);font-size:13px}
.section{padding:88px 0}
.section-head{display:flex;align-items:end;justify-content:space-between;gap:20px;margin-bottom:32px}
.section-kicker{font-size:12px;color:var(--orange-deep);font-weight:800;letter-spacing:.14em;margin-bottom:6px}
h2{font-size:clamp(28px,3.5vw,40px);line-height:1.25;letter-spacing:-.04em}
.section-head p{max-width:450px;color:var(--muted)}
.entry-layout{display:grid;grid-template-columns:1.2fr .8fr;gap:18px}
.entry-large,.entry-small{background:var(--paper-strong);border:1px solid var(--line);border-radius:var(--radius);padding:28px;transition:.25s;position:relative;overflow:hidden}
.entry-large{min-height:260px;background:var(--night);color:var(--white);display:flex;flex-direction:column;justify-content:end}
.entry-large:after{content:"J9";position:absolute;right:24px;top:10px;font-size:150px;color:rgba(217,135,54,.16);font-weight:900;line-height:1}
.entry-large>*{position:relative;z-index:1}
.entry-stack{display:grid;gap:18px}
.entry-small{min-height:121px;display:flex;align-items:center;gap:20px}
.entry-large:hover,.entry-small:hover,.news-item:hover{transform:translateY(-3px);box-shadow:var(--soft-shadow)}
.entry-icon{width:46px;height:46px;border-radius:13px;display:grid;place-items:center;background:#efe7d8;color:var(--orange-deep);font-weight:900;flex:none}
.entry-large .entry-icon{background:rgba(217,135,54,.18);color:var(--orange)}
.entry-large h3{font-size:28px;margin:9px 0 4px}
.entry-small h3{font-size:19px;line-height:1.35}
.entry-small p,.entry-large p{color:var(--muted);font-size:14px}
.entry-large p{color:#bac0b5}
.arrow{margin-left:auto;color:var(--orange);font-size:22px}
.news-section{background:var(--paper-strong)}
.news-layout{display:grid;grid-template-columns:.72fr 1.28fr;gap:55px;align-items:start}
.feature-note{background:var(--orange);border-radius:var(--radius);padding:31px;color:var(--night);min-height:270px}
.feature-note strong{font-size:13px;letter-spacing:.1em}
.feature-note h3{font-size:27px;line-height:1.35;margin:50px 0 12px;letter-spacing:-.03em}
.feature-note p{font-size:14px}
.news-list{border-top:1px solid var(--line)}
.news-item{display:grid;grid-template-columns:110px 1fr auto;gap:18px;align-items:center;padding:20px 0;border-bottom:1px solid var(--line);transition:.25s}
.news-meta{font-size:12px;color:var(--muted)}
.news-meta b{display:block;color:var(--orange-deep);margin-bottom:4px}
.news-item h3{font-size:18px;line-height:1.4}
.news-item p{font-size:13px;color:var(--muted);margin-top:4px;display:-webkit-box;-webkit-line-clamp:1;-webkit-box-orient:vertical;overflow:hidden}
.news-link{color:var(--orange-deep);font-weight:800;white-space:nowrap}
.empty-state{padding:30px 0;color:var(--muted)}
.download{padding:88px 0;background:#e8e3d8}
.download-box{background:var(--night);border-radius:24px;color:var(--white);padding:54px 60px;display:grid;grid-template-columns:1fr .8fr;gap:50px;align-items:center;overflow:hidden;position:relative}
.download-box:after{content:"";width:300px;height:300px;border-radius:50%;border:1px solid rgba(217,135,54,.3);position:absolute;right:-80px;bottom:-180px}
.download h2{max-width:510px}
.download p{color:#c0c5ba;margin:18px 0 25px;max-width:510px}
.download-tags{display:flex;flex-wrap:wrap;gap:9px;margin-top:18px}
.tag{display:inline-flex;padding:5px 10px;border-radius:30px;background:rgba(255,255,255,.1);color:#d5d8d0;font-size:12px}
.device-stage{height:210px;display:flex;justify-content:center;align-items:center;position:relative;z-index:1}
.device{width:142px;height:220px;border:7px solid #54584f;border-radius:25px;background:#f1e5d1;transform:rotate(9deg);box-shadow:0 20px 35px rgba(0,0,0,.3);padding:22px 10px 10px}
.device:before{content:"";display:block;width:38px;height:5px;background:#6e7169;border-radius:5px;margin:0 auto 18px}
.device-screen{height:140px;border-radius:12px;background:linear-gradient(145deg,#d98736 0 38%,#30342e 38%);position:relative}
.device-screen:after{content:"J9";position:absolute;color:#fff;opacity:.75;font-size:48px;font-weight:900;right:10px;bottom:15px}
.qr{width:92px;height:92px;background:repeating-linear-gradient(45deg,#fff 0 4px,#23251f 4px 8px);border:8px solid #fff;border-radius:5px;position:absolute;right:25px;top:36px;transform:rotate(-8deg)}
.topics{padding:88px 0}
.topic-nav{display:flex;gap:10px;flex-wrap:wrap;margin-top:25px}
.topic-nav a{padding:13px 17px;border:1px solid var(--line);border-radius:12px;background:var(--paper-strong);font-weight:700;transition:.25s}
.topic-nav a:hover{border-color:var(--orange);color:var(--orange-deep);transform:translateY(-2px)}
.faq-section{background:#eee9df}
.faq-grid{display:grid;grid-template-columns:.7fr 1.3fr;gap:70px}
.faq-intro p{color:var(--muted);margin-top:15px}
.faq-list{border-top:1px solid var(--line)}
details{border-bottom:1px solid var(--line);padding:19px 0}
summary{cursor:pointer;list-style:none;font-weight:800;font-size:17px;display:flex;justify-content:space-between;gap:20px}
summary::-webkit-details-marker{display:none}
summary:after{content:"＋";color:var(--orange-deep);font-size:22px;line-height:1}
details[open] summary:after{content:"－"}
details p{color:var(--muted);font-size:15px;padding:14px 35px 2px 0}
.cta{padding:80px 0}
.cta-box{border:1px solid var(--line);border-radius:20px;padding:40px;display:flex;justify-content:space-between;align-items:center;gap:28px;background:var(--paper-strong)}
.cta-box p{color:var(--muted);margin-top:6px}
.site-footer{background:var(--night);color:var(--white);padding:54px 0 25px}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:35px;padding-bottom:42px}
.footer-brand p{color:#aeb3a8;font-size:14px;max-width:285px;margin-top:15px}
.footer-title{font-size:14px;font-weight:800;color:var(--orange);margin-bottom:13px}
.footer-links{display:grid;gap:8px}
.footer-links a{color:#c6c9c1;font-size:14px;transition:.2s}
.footer-links a:hover{color:var(--orange)}
.copyright{border-top:1px solid rgba(255,255,255,.12);padding-top:20px;color:#8e9489;font-size:12px;display:flex;justify-content:space-between;gap:20px}
@media(max-width:1050px){
  .main-nav{gap:0}.main-nav a{padding-left:7px;padding-right:7px;font-size:13px}
  .hero-grid{gap:40px}.footer-grid{grid-template-columns:1.4fr 1fr 1fr}
}
@media(max-width:820px){
  .site-header{height:72px}.main-nav{display:none;position:absolute;top:72px;left:0;right:0;background:var(--night);padding:14px 24px 22px;flex-direction:column;align-items:stretch;border-top:1px solid rgba(255,255,255,.1)}
  .main-nav.open{display:flex}.main-nav a{padding:12px 10px;font-size:15px}.menu-toggle{display:block}.header-inner{gap:10px}.logo{font-size:17px}.logo small{display:none}.header-action .btn{min-height:40px;padding:0 13px;font-size:13px}
  .hero{padding:70px 0}.hero-grid,.news-layout,.faq-grid,.download-box{grid-template-columns:1fr}.hero-art{min-height:300px}.download-box{padding:40px 32px}.feature-note{min-height:210px}.feature-note h3{margin-top:28px}
  .footer-grid{grid-template-columns:1.5fr 1fr 1fr}
}
@media(max-width:560px){
  .container{width:min(calc(100% - 32px),var(--container))}
  .hero h1{font-size:36px}.hero-copy{font-size:16px}.hero-buttons .btn{width:100%}.hero-art{min-height:245px}.art-panel{width:275px;height:220px}.art-panel:before{font-size:85px}
  .section,.topics,.download,.cta{padding:58px 0}.section-head{display:block}.section-head p{margin-top:12px}.entry-layout{grid-template-columns:1fr}.entry-large{min-height:220px}
  .news-item{grid-template-columns:70px 1fr;gap:12px}.news-link{grid-column:2}.news-item h3{font-size:16px}
  .download-box{padding:32px 22px}.device-stage{margin-top:10px}.qr{right:4px}.topic-nav a{flex:1 1 45%;font-size:14px;text-align:center}
  .faq-grid{gap:28px}.cta-box{display:block;padding:28px}.cta-box .btn{margin-top:20px;width:100%}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px}.footer-brand{grid-column:1/-1}.copyright{display:block}.copyright span{display:block;margin-top:6px}
}

/* roulang page: article */
:root{
    --ink:#171816;--night:#20221f;--night-soft:#292c27;--paper:#f5f1e9;
    --paper-strong:#fffdf8;--orange:#d98736;--orange-deep:#b96322;
    --mint:#8bb7a6;--muted:#777a71;--line:#dcd7cb;--white:#fffdf8;
    --shadow:0 18px 48px rgba(29,29,23,.12);--soft-shadow:0 8px 24px rgba(29,29,23,.08);
    --radius:18px;--container:1200px
  }
  *{box-sizing:border-box}
  html{scroll-behavior:smooth}
  body{margin:0;background:var(--paper);color:var(--ink);font-family:"Noto Sans SC","PingFang SC","Microsoft YaHei",sans-serif;font-size:16px;line-height:1.75}
  a{color:inherit;text-decoration:none}
  button,input{font:inherit}
  button{cursor:pointer}
  img{display:block;max-width:100%;height:auto}
  .container{width:min(calc(100% - 48px),var(--container));margin:0 auto}
  .site-header{height:82px;background:rgba(32,34,31,.98);color:var(--white);display:flex;align-items:center;position:sticky;top:0;z-index:20;border-bottom:1px solid rgba(255,255,255,.08)}
  .header-inner{display:flex;align-items:center;justify-content:space-between;gap:24px}
  .logo{display:flex;align-items:center;gap:10px;font-size:21px;font-weight:800;letter-spacing:-.04em;white-space:nowrap}
  .logo-mark{width:35px;height:35px;border-radius:10px;background:var(--orange);color:var(--night);display:grid;place-items:center;font-weight:900;font-size:18px}
  .main-nav{display:flex;align-items:center;gap:3px}
  .main-nav a{color:#d9dbd3;font-size:14px;padding:9px 10px;border-radius:9px;transition:.25s}
  .main-nav a:hover,.main-nav a.active{color:#fff;background:rgba(217,135,54,.16)}
  .main-nav a.active{box-shadow:inset 0 -2px var(--orange)}
  .header-action{flex:none}
  .btn{display:inline-flex;align-items:center;justify-content:center;gap:9px;min-height:46px;padding:0 20px;border-radius:11px;border:1px solid transparent;font-weight:700;transition:transform .25s,background .25s,box-shadow .25s}
  .btn:hover{transform:translateY(-2px)}
  .btn:focus-visible,.main-nav a:focus-visible,.menu-toggle:focus-visible,.faq-question:focus-visible{outline:3px solid rgba(217,135,54,.45);outline-offset:3px}
  .btn-primary{background:var(--orange);color:var(--night);box-shadow:0 7px 18px rgba(217,135,54,.22)}
  .btn-primary:hover{background:#e49a4e;box-shadow:0 10px 24px rgba(217,135,54,.3)}
  .btn-dark{background:var(--night);color:var(--white)}
  .btn-ghost{border-color:rgba(255,255,255,.3);color:var(--white)}
  .btn-ghost:hover{border-color:var(--orange);color:var(--orange)}
  .menu-toggle{display:none;border:0;background:transparent;color:var(--white);font-size:25px;padding:8px}
  .article-hero{background:var(--night);color:var(--white);padding:72px 0 68px;position:relative;overflow:hidden}
  .article-hero:after{content:"J9";position:absolute;right:8%;bottom:-52px;color:rgba(217,135,54,.08);font-size:220px;font-weight:900;line-height:1}
  .hero-inner{position:relative;z-index:1;max-width:900px}
  .breadcrumb{display:flex;flex-wrap:wrap;gap:10px;color:#aeb3a8;font-size:13px;margin-bottom:25px}
  .breadcrumb a:hover{color:var(--orange)}
  .breadcrumb .sep{color:var(--orange)}
  .eyebrow{color:var(--orange);font-weight:800;font-size:13px;letter-spacing:.12em;margin-bottom:15px}
  .article-hero h1{font-size:clamp(34px,5vw,58px);line-height:1.2;letter-spacing:-.05em;max-width:850px;margin:0}
  .article-lead{color:#c6c9c1;max-width:760px;font-size:18px;margin:22px 0 25px}
  .article-meta{display:flex;flex-wrap:wrap;gap:12px 22px;color:#aeb3a8;font-size:13px}
  .meta-item{display:inline-flex;align-items:center;gap:7px}
  .meta-item b{color:var(--orange);font-weight:700}
  .article-area{padding:70px 0 84px}
  .article-layout{display:grid;grid-template-columns:minmax(0,820px) 270px;gap:70px;align-items:start}
  .article-content{background:var(--paper-strong);border:1px solid var(--line);border-radius:var(--radius);padding:clamp(26px,5vw,62px);box-shadow:var(--soft-shadow);overflow:hidden}
  .article-content h2{font-size:30px;line-height:1.35;margin:38px 0 16px;letter-spacing:-.03em}
  .article-content h3{font-size:22px;line-height:1.45;margin:30px 0 12px}
  .article-content p{margin:0 0 20px;color:#3e413b}
  .article-content ul,.article-content ol{padding-left:1.5em;margin:15px 0 24px;color:#3e413b}
  .article-content li{margin:8px 0}
  .article-content img{border-radius:12px;margin:26px auto}
  .article-content blockquote{border-left:4px solid var(--orange);background:#f2ede3;padding:18px 22px;margin:28px 0;color:#55584f}
  .article-content table{width:100%;border-collapse:collapse;margin:25px 0;display:block;overflow-x:auto}
  .article-content th,.article-content td{border:1px solid var(--line);padding:11px 14px;text-align:left;white-space:nowrap}
  .article-content th{background:#eee9df;color:var(--orange-deep)}
  .article-content a{color:var(--orange-deep);text-decoration:underline;text-underline-offset:3px}
  .article-content a:hover{color:var(--orange)}
  .article-content strong{color:var(--ink)}
  .article-aside{position:sticky;top:108px}
  .aside-card{background:var(--night);color:var(--white);border-radius:var(--radius);padding:25px}
  .aside-card h2{font-size:20px;line-height:1.4;margin:0 0 13px}
  .aside-card p{color:#bfc4ba;font-size:14px;margin:0 0 20px}
  .aside-links{display:grid;gap:9px}
  .aside-links a{padding:10px 12px;border:1px solid rgba(255,255,255,.14);border-radius:9px;color:#dce0d8;font-size:14px;transition:.2s}
  .aside-links a:hover{border-color:var(--orange);color:var(--orange)}
  .reading-note{margin-top:18px;padding:18px;border:1px solid var(--line);border-radius:14px;background:#eee9df;color:var(--muted);font-size:13px}
  .empty-state{padding:68px 25px;text-align:center;border:1px dashed var(--line);border-radius:16px;background:var(--paper-strong)}
  .empty-state .empty-icon{width:55px;height:55px;border-radius:50%;display:grid;place-items:center;background:#eee9df;color:var(--orange);font-size:24px;margin:0 auto 18px}
  .empty-state h2{font-size:26px;margin:0 0 10px}
  .empty-state p{color:var(--muted);margin:0 0 22px}
  .after-article{background:#eee9df;padding:64px 0}
  .after-grid{display:grid;grid-template-columns:1fr 1fr;gap:22px}
  .info-card{background:var(--paper-strong);border:1px solid var(--line);border-radius:16px;padding:25px;transition:.25s}
  .info-card:hover{transform:translateY(-3px);box-shadow:var(--soft-shadow);border-color:#c9a16f}
  .info-card .label{font-size:12px;color:var(--orange-deep);font-weight:800;letter-spacing:.1em}
  .info-card h3{font-size:21px;margin:10px 0 8px}
  .info-card p{color:var(--muted);font-size:14px;margin:0 0 15px}
  .text-link{color:var(--orange-deep);font-weight:700}
  .text-link:hover{color:var(--orange)}
  .faq-section{padding:76px 0;background:var(--paper)}
  .section-head{display:flex;align-items:end;justify-content:space-between;gap:20px;margin-bottom:28px}
  .section-kicker{font-size:12px;color:var(--orange-deep);font-weight:800;letter-spacing:.14em;margin-bottom:6px}
  .section-head h2{font-size:32px;line-height:1.3;margin:0}
  .section-head p{max-width:430px;color:var(--muted);margin:0}
  .faq-list{max-width:850px;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:20px 4px;display:flex;justify-content:space-between;gap:20px;font-weight:700;color:var(--ink)}
  .faq-question span:last-child{color:var(--orange);font-size:22px;line-height:1;transition:.2s}
  .faq-answer{display:none;color:var(--muted);font-size:15px;padding:0 38px 20px 4px}
  .faq-item.open .faq-answer{display:block}
  .faq-item.open .faq-question span:last-child{transform:rotate(45deg)}
  .cta{padding:0 0 84px}
  .cta-box{background:var(--orange);border-radius:20px;padding:38px 42px;display:flex;justify-content:space-between;align-items:center;gap:28px;color:var(--night)}
  .cta-box h2{font-size:29px;line-height:1.35;margin:0}
  .cta-box p{margin:7px 0 0;color:#563a22}
  .site-footer{background:var(--night);color:var(--white);padding:54px 0 25px}
  .footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:35px;padding-bottom:42px}
  .footer-brand p{color:#aeb3a8;font-size:14px;max-width:285px;margin-top:15px}
  .footer-title{font-size:14px;font-weight:800;color:var(--orange);margin-bottom:13px}
  .footer-links{display:grid;gap:8px}
  .footer-links a{color:#c6c9c1;font-size:14px;transition:.2s}
  .footer-links a:hover{color:var(--orange)}
  .copyright{border-top:1px solid rgba(255,255,255,.12);padding-top:19px;display:flex;justify-content:space-between;gap:15px;flex-wrap:wrap;color:#92988e;font-size:12px}
  @media(max-width:1100px){
    .main-nav a{padding-left:7px;padding-right:7px;font-size:13px}
    .article-layout{grid-template-columns:minmax(0,1fr) 230px;gap:35px}
  }
  @media(max-width:900px){
    .main-nav{display:none;position:absolute;left:24px;right:24px;top:74px;background:var(--night);padding:12px;border:1px solid rgba(255,255,255,.12);border-radius:14px;box-shadow:var(--shadow);flex-direction:column;align-items:stretch}
    .main-nav.open{display:flex}
    .main-nav a{padding:11px 13px}
    .menu-toggle{display:block}
    .header-inner{gap:12px}
    .header-action .btn{min-height:42px;padding:0 14px;font-size:14px}
    .article-layout{grid-template-columns:1fr}
    .article-aside{position:static;order:-1}
    .aside-card{display:flex;align-items:center;justify-content:space-between;gap:20px}
    .aside-card p{margin-bottom:0}
    .aside-links{display:flex;flex-wrap:wrap}
  }
  @media(max-width:640px){
    .container{width:min(calc(100% - 32px),var(--container))}
    .site-header{height:74px}
    .logo{font-size:17px}
    .logo-mark{width:32px;height:32px;font-size:16px}
    .header-action{display:none}
    .main-nav{left:16px;right:16px;top:68px}
    .article-hero{padding:50px 0 48px}
    .article-hero h1{font-size:35px}
    .article-lead{font-size:16px}
    .article-area{padding:38px 0 50px}
    .article-content{padding:25px 20px;border-radius:14px}
    .article-content h2{font-size:25px}
    .article-content h3{font-size:20px}
    .aside-card{display:block}
    .aside-card p{margin-bottom:17px}
    .after-article{padding:45px 0}
    .after-grid{grid-template-columns:1fr}
    .section-head{display:block}
    .section-head h2{font-size:27px}
    .section-head p{margin-top:10px}
    .faq-section{padding:50px 0}
    .cta{padding-bottom:55px}
    .cta-box{display:block;padding:28px 24px}
    .cta-box h2{font-size:25px}
    .cta-box .btn{margin-top:20px}
    .footer-grid{grid-template-columns:1fr 1fr;gap:28px 18px}
    .footer-brand{grid-column:1/-1}
    .copyright{display:block}
    .copyright span{display:block;margin-bottom:5px}
  }

/* roulang page: category1 */
:root{
      --ink:#171816;--night:#20221f;--night-soft:#292c27;--paper:#f5f1e9;
      --paper-strong:#fffdf8;--orange:#d98736;--orange-deep:#b96322;
      --mint:#8bb7a6;--muted:#777a71;--line:#dcd7cb;--white:#fffdf8;
      --shadow:0 18px 48px rgba(29,29,23,.12);--soft-shadow:0 8px 24px rgba(29,29,23,.08);
      --radius:18px;--container:1200px
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{margin:0;font-family:"Noto Sans SC","PingFang SC","Microsoft YaHei",sans-serif;color:var(--ink);background:var(--paper);line-height:1.7;font-size:16px}
    a{color:inherit;text-decoration:none}
    img{display:block;max-width:100%}
    button,input{font:inherit}
    button{cursor:pointer}
    .container{width:min(calc(100% - 48px),var(--container));margin:0 auto}
    .site-header{height:82px;background:rgba(32,34,31,.98);color:var(--white);display:flex;align-items:center;position:sticky;top:0;z-index:20;border-bottom:1px solid rgba(255,255,255,.08)}
    .header-inner{display:flex;align-items:center;justify-content:space-between;gap:26px}
    .logo{font-weight:800;font-size:21px;letter-spacing:-.04em;white-space:nowrap;display:flex;align-items:center;gap:10px}
    .logo-mark{width:35px;height:35px;border-radius:10px;background:var(--orange);display:grid;place-items:center;color:var(--night);font-weight:900;font-size:18px}
    .main-nav{display:flex;align-items:center;gap:3px}
    .main-nav a{color:#d9dbd3;font-size:14px;padding:9px 11px;border-radius:9px;transition:.25s}
    .main-nav a:hover,.main-nav a.active{color:#fff;background:rgba(217,135,54,.16)}
    .main-nav a.active{box-shadow:inset 0 -2px var(--orange);font-weight:800}
    .header-action{flex:none}
    .btn{display:inline-flex;align-items:center;justify-content:center;gap:9px;min-height:46px;padding:0 20px;border-radius:11px;border:1px solid transparent;font-weight:700;transition:transform .25s,background .25s,box-shadow .25s}
    .btn:hover{transform:translateY(-2px)}
    .btn:focus-visible,.main-nav a:focus-visible,.menu-toggle:focus-visible{outline:3px solid rgba(217,135,54,.45);outline-offset:3px}
    .btn-primary{background:var(--orange);color:var(--night);box-shadow:0 7px 18px rgba(217,135,54,.22)}
    .btn-primary:hover{background:#e49a4e;box-shadow:0 10px 24px rgba(217,135,54,.3)}
    .btn-ghost{border-color:rgba(255,255,255,.3);color:var(--white)}
    .btn-ghost:hover{border-color:var(--orange);color:var(--orange)}
    .btn-dark{background:var(--night);color:var(--white)}
    .menu-toggle{display:none;border:0;background:transparent;color:var(--white);font-size:25px;padding:8px}
    .hero{background:var(--night);color:var(--white);padding:86px 0 82px;position:relative;overflow:hidden}
    .hero:before{content:"";position:absolute;width:540px;height:540px;border:1px solid rgba(217,135,54,.22);border-radius:50%;right:-160px;top:-220px}
    .hero:after{content:"";position:absolute;width:300px;height:300px;border:1px solid rgba(139,183,166,.2);border-radius:50%;right:170px;bottom:-220px}
    .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(--orange);font-weight:800;font-size:13px;letter-spacing:.12em}
    .eyebrow{margin-bottom:17px}
    h1,h2,h3,p{margin-top:0}
    .hero h1{font-size:clamp(38px,5vw,62px);line-height:1.15;letter-spacing:-.055em;margin-bottom:22px}
    .hero h1 em{color:var(--orange);font-style:normal}
    .hero-copy{color:#c6c9c1;max-width:620px;font-size:18px;margin-bottom:30px}
    .hero-buttons{display:flex;gap:13px;flex-wrap:wrap}
    .hero-panel{min-height:330px;background:#2b2e29;border:1px solid rgba(255,255,255,.12);border-radius:24px;padding:28px;position:relative;box-shadow:var(--shadow)}
    .panel-top{display:flex;justify-content:space-between;align-items:center;color:#b8bcb3;font-size:13px;border-bottom:1px solid rgba(255,255,255,.1);padding-bottom:18px}
    .panel-dot{width:9px;height:9px;background:var(--orange);border-radius:50%;display:inline-block;margin-right:7px}
    .panel-title{font-size:28px;line-height:1.3;font-weight:800;margin:55px 0 14px;max-width:270px}
    .panel-text{color:#b8bcb3;font-size:14px;max-width:280px}
    .panel-lines{position:absolute;right:25px;bottom:29px;width:115px;display:grid;gap:10px}
    .panel-lines i{height:8px;border-radius:8px;background:var(--mint);opacity:.8}
    .panel-lines i:nth-child(2){width:78%;background:var(--orange)}
    .panel-lines i:nth-child(3){width:58%;background:#d7d8cc}
    .section{padding:84px 0}
    .section-soft{background:var(--paper-strong)}
    .section-muted{background:#eee9df}
    .section-head{display:flex;align-items:end;justify-content:space-between;gap:25px;margin-bottom:32px}
    .section-kicker{color:var(--orange-deep);margin-bottom:7px}
    .section-head h2{font-size:34px;line-height:1.25;letter-spacing:-.04em;margin-bottom:0}
    .section-head p{max-width:480px;color:var(--muted);margin-bottom:0}
    .path-grid{display:grid;grid-template-columns:1.35fr .8fr .8fr;gap:16px}
    .path-card{border:1px solid var(--line);border-radius:var(--radius);padding:27px;background:var(--paper);min-height:190px;transition:.25s;display:flex;flex-direction:column}
    .path-card:hover,.info-card:hover,.topic-box:hover{transform:translateY(-4px);box-shadow:var(--soft-shadow);border-color:var(--orange)}
    .path-card.primary{background:var(--orange);color:var(--night);min-height:250px}
    .path-no{font-weight:900;color:var(--orange-deep);font-size:13px;letter-spacing:.08em}
    .primary .path-no{color:var(--night)}
    .path-card h3{font-size:24px;margin:36px 0 10px;line-height:1.3}
    .path-card p{font-size:14px;color:var(--muted);margin-bottom:0}
    .primary p{color:#503719}
    .card-arrow{margin-top:auto;text-align:right;font-size:23px;color:var(--orange-deep)}
    .primary .card-arrow{color:var(--night)}
    .info-layout{display:grid;grid-template-columns:.8fr 1.2fr;gap:52px;align-items:start}
    .info-intro{background:var(--night);color:var(--white);border-radius:var(--radius);padding:34px;min-height:320px}
    .info-intro h3{font-size:28px;line-height:1.35;margin:35px 0 14px}
    .info-intro p{color:#c6c9c1;font-size:15px}
    .tag-row{display:flex;flex-wrap:wrap;gap:8px;margin-top:22px}
    .tag{display:inline-flex;padding:5px 11px;border-radius:30px;background:rgba(255,255,255,.11);color:#d5d8d0;font-size:12px}
    .info-cards{display:grid;gap:13px}
    .info-card{display:grid;grid-template-columns:68px 1fr auto;gap:19px;align-items:center;padding:20px;border:1px solid var(--line);background:var(--paper-strong);border-radius:14px;transition:.25s}
    .info-index{font-size:28px;font-weight:900;color:var(--orange)}
    .info-card h3{font-size:18px;margin-bottom:4px}
    .info-card p{font-size:13px;color:var(--muted);margin-bottom:0}
    .info-card a{color:var(--orange-deep);font-weight:800;font-size:13px;white-space:nowrap}
    .topic-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}
    .topic-box{padding:23px;border:1px solid var(--line);border-radius:15px;background:var(--paper-strong);transition:.25s}
    .topic-box strong{display:block;font-size:18px;margin-bottom:8px}
    .topic-box span{font-size:13px;color:var(--muted)}
    .download-band{background:var(--night);color:var(--white);padding:65px 0}
    .download-grid{display:grid;grid-template-columns:1fr .8fr;gap:50px;align-items:center}
    .download-band h2{font-size:36px;line-height:1.3;margin:10px 0 14px}
    .download-band p{color:#c6c9c1;max-width:600px}
    .download-actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:25px}
    .device-card{background:#f2eee5;border-radius:22px;padding:25px;color:var(--night);min-height:220px;display:flex;align-items:center;justify-content:space-between;gap:15px}
    .device-card strong{font-size:25px;line-height:1.3;display:block;max-width:170px}
    .device-shape{width:125px;height:170px;border:8px solid var(--night);border-radius:22px;background:var(--orange);position:relative;box-shadow:10px 12px 0 rgba(32,34,31,.14)}
    .device-shape:before{content:"J9";position:absolute;inset:35px 15px;background:var(--night);color:var(--orange);border-radius:9px;display:grid;place-items:center;font-size:26px;font-weight:900}
    .faq-grid{display:grid;grid-template-columns:.7fr 1.3fr;gap:70px}
    .faq-intro p{color:var(--muted);margin-top:15px}
    .faq-list{border-top:1px solid var(--line)}
    .faq-item{border-bottom:1px solid var(--line)}
    .faq-item summary{list-style:none;padding:21px 0;font-size:17px;font-weight:800;cursor:pointer;display:flex;justify-content:space-between;gap:20px}
    .faq-item summary::-webkit-details-marker{display:none}
    .faq-item summary:after{content:"+";color:var(--orange-deep);font-size:24px;line-height:1}
    .faq-item[open] summary:after{content:"−"}
    .faq-answer{color:var(--muted);font-size:15px;padding:0 35px 22px 0}
    .cta{padding:78px 0}
    .cta-box{border:1px solid var(--line);border-radius:20px;padding:38px 42px;display:flex;justify-content:space-between;align-items:center;gap:28px;background:var(--paper-strong)}
    .cta-box h2{font-size:30px;margin-bottom:6px}
    .cta-box p{color:var(--muted);margin-bottom:0}
    .site-footer{background:var(--night);color:var(--white);padding:54px 0 25px}
    .footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:35px;padding-bottom:42px}
    .footer-brand p{color:#aeb3a8;font-size:14px;max-width:285px;margin-top:15px}
    .footer-title{font-size:14px;font-weight:800;color:var(--orange);margin-bottom:13px}
    .footer-links{display:grid;gap:8px}
    .footer-links a{color:#c6c9c1;font-size:14px;transition:.2s}
    .footer-links a:hover{color:var(--orange)}
    .copyright{border-top:1px solid rgba(255,255,255,.1);padding-top:20px;color:#9fa49a;font-size:12px;display:flex;justify-content:space-between;gap:15px;flex-wrap:wrap}
    @media(max-width:1100px){.main-nav{gap:0}.main-nav a{padding:8px 7px;font-size:13px}.hero-grid{gap:40px}.topic-grid{grid-template-columns:repeat(2,1fr)}}
    @media(max-width:850px){.main-nav{display:none;position:absolute;top:82px;left:0;right:0;background:var(--night);padding:15px 24px 22px;flex-wrap:wrap;border-bottom:1px solid rgba(255,255,255,.1)}.main-nav.open{display:flex}.main-nav a{width:50%;padding:12px}.menu-toggle{display:block}.header-inner{gap:10px}.header-action{margin-left:auto}.hero-grid,.download-grid,.info-layout,.faq-grid{grid-template-columns:1fr}.hero-art{min-height:260px}.path-grid{grid-template-columns:1fr 1fr}.path-card.primary{grid-column:1/-1;min-height:205px}.footer-grid{grid-template-columns:1fr 1fr}}
    @media(max-width:560px){.container{width:min(calc(100% - 32px),var(--container))}.site-header{height:72px}.main-nav{top:72px;padding-left:16px;padding-right:16px}.logo{font-size:17px}.logo-mark{width:32px;height:32px}.header-action .btn{min-height:40px;padding:0 12px;font-size:13px}.hero{padding:60px 0}.hero h1{font-size:38px}.hero-copy{font-size:16px}.section{padding:58px 0}.section-head{display:block}.section-head h2{font-size:28px;margin-bottom:12px}.path-grid,.topic-grid{grid-template-columns:1fr}.path-card.primary{grid-column:auto}.info-card{grid-template-columns:46px 1fr}.info-card a{display:none}.download-band h2{font-size:29px}.device-card{margin-top:8px}.cta-box{padding:28px;display:block}.cta-box .btn{margin-top:22px;width:100%}.footer-grid{grid-template-columns:1fr;gap:25px}.copyright{display:block}.copyright span{display:block;margin-bottom:5px}}

/* roulang page: category2 */
:root{
      --ink:#171816;--night:#20221f;--night-soft:#292c27;--paper:#f5f1e9;
      --paper-strong:#fffdf8;--orange:#d98736;--orange-deep:#b96322;
      --mint:#8bb7a6;--muted:#777a71;--line:#dcd7cb;--white:#fffdf8;
      --shadow:0 18px 48px rgba(29,29,23,.12);--soft-shadow:0 8px 24px rgba(29,29,23,.08);
      --radius:18px;--container:1200px
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{margin:0;font-family:"Noto Sans SC","PingFang SC","Microsoft YaHei",sans-serif;color:var(--ink);background:var(--paper);line-height:1.7;font-size:16px}
    a{color:inherit;text-decoration:none}
    img{display:block;max-width:100%}
    button,input{font:inherit}
    button{cursor:pointer}
    .container{width:min(calc(100% - 48px),var(--container));margin:0 auto}
    .site-header{height:82px;background:rgba(32,34,31,.98);color:var(--white);display:flex;align-items:center;position:sticky;top:0;z-index:20;border-bottom:1px solid rgba(255,255,255,.08)}
    .header-inner{display:flex;align-items:center;justify-content:space-between;gap:26px}
    .logo{font-weight:800;font-size:21px;letter-spacing:-.04em;white-space:nowrap;display:flex;align-items:center;gap:10px}
    .logo-mark{width:35px;height:35px;border-radius:10px;background:var(--orange);display:grid;place-items:center;color:var(--night);font-weight:900;font-size:18px}
    .main-nav{display:flex;align-items:center;gap:3px}
    .main-nav a{color:#d9dbd3;font-size:14px;padding:9px 11px;border-radius:9px;transition:.25s}
    .main-nav a:hover,.main-nav a.active{color:#fff;background:rgba(217,135,54,.16)}
    .main-nav a.active{box-shadow:inset 0 -2px var(--orange)}
    .header-action{flex:none}
    .btn{display:inline-flex;align-items:center;justify-content:center;gap:9px;min-height:46px;padding:0 20px;border-radius:11px;border:1px solid transparent;font-weight:700;transition:transform .25s,background .25s,box-shadow .25s}
    .btn:hover{transform:translateY(-2px)}
    .btn:focus-visible,.main-nav a:focus-visible,.menu-toggle:focus-visible{outline:3px solid rgba(217,135,54,.45);outline-offset:3px}
    .btn-primary{background:var(--orange);color:var(--night);box-shadow:0 7px 18px rgba(217,135,54,.22)}
    .btn-primary:hover{background:#e49a4e;box-shadow:0 10px 24px rgba(217,135,54,.3)}
    .btn-ghost{border-color:rgba(255,255,255,.3);color:var(--white)}
    .btn-ghost:hover{border-color:var(--orange);color:var(--orange)}
    .btn-dark{background:var(--night);color:var(--white)}
    .menu-toggle{display:none;border:0;background:transparent;color:var(--white);font-size:25px;padding:8px}
    .hero{background:var(--night);color:var(--white);position:relative;overflow:hidden;padding:86px 0 78px}
    .hero:before{content:"";position:absolute;width:560px;height:560px;border:1px solid rgba(217,135,54,.22);border-radius:50%;right:-180px;top:-245px}
    .hero:after{content:"";position:absolute;width:300px;height:300px;border:1px solid rgba(139,183,166,.2);border-radius:50%;right:150px;bottom:-220px}
    .hero-grid{display:grid;grid-template-columns:1.05fr .95fr;align-items:center;gap:76px;position:relative;z-index:1}
    .eyebrow,.section-kicker{color:var(--orange);font-weight:800;font-size:13px;letter-spacing:.12em;margin-bottom:15px}
    .hero h1{font-size:clamp(38px,5vw,62px);line-height:1.17;letter-spacing:-.055em;max-width:700px;margin:0}
    .hero h1 em{color:var(--orange);font-style:normal}
    .hero-copy{color:#c6c9c1;max-width:600px;margin:22px 0 30px;font-size:18px}
    .hero-buttons{display:flex;gap:13px;flex-wrap:wrap}
    .route-board{position:relative;padding:25px;background:#2a2d28;border:1px solid rgba(255,255,255,.12);border-radius:22px;box-shadow:var(--shadow);transform:rotate(2deg)}
    .route-top{display:flex;justify-content:space-between;align-items:center;color:#b9beb4;font-size:13px;border-bottom:1px solid rgba(255,255,255,.12);padding-bottom:16px}
    .route-top strong{color:var(--orange);font-size:16px}
    .route-list{display:grid;gap:13px;margin-top:19px}
    .route-link{display:flex;align-items:center;gap:14px;padding:15px;border-radius:13px;background:rgba(255,255,255,.06);transition:.25s}
    .route-link:hover{background:rgba(217,135,54,.18);transform:translateX(4px)}
    .route-number{width:30px;height:30px;border-radius:9px;background:var(--orange);color:var(--night);font-weight:900;display:grid;place-items:center}
    .route-link span:last-child{margin-left:auto;color:var(--orange);font-size:20px}
    .section{padding:86px 0}
    .section-head{display:flex;align-items:end;justify-content:space-between;gap:20px;margin-bottom:31px}
    .section-head h2{font-size:35px;line-height:1.25;letter-spacing:-.04em;margin:0}
    .section-head p{max-width:470px;color:var(--muted);margin:0}
    .section-kicker{color:var(--orange-deep);margin-bottom:7px}
    .path-grid{display:grid;grid-template-columns:1.3fr .7fr;gap:18px}
    .path-card{background:var(--paper-strong);border:1px solid var(--line);border-radius:var(--radius);padding:30px;min-height:210px;transition:.25s;position:relative;overflow:hidden}
    .path-card:hover{transform:translateY(-4px);box-shadow:var(--soft-shadow);border-color:var(--orange)}
    .path-card.feature{background:var(--orange);color:var(--night);grid-row:span 2;min-height:438px}
    .path-card.mint{background:var(--mint)}
    .path-card small{font-weight:800;letter-spacing:.12em;opacity:.7}
    .path-card h3{font-size:26px;line-height:1.3;margin:44px 0 10px}
    .path-card p{color:var(--muted);max-width:430px;margin:0}
    .feature p{color:#4a3929}
    .card-arrow{position:absolute;right:26px;bottom:22px;font-size:25px;color:var(--orange-deep)}
    .feature .card-arrow{color:var(--night)}
    .steps-section{background:var(--paper-strong)}
    .steps{display:grid;grid-template-columns:repeat(3,1fr);gap:0;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
    .step{padding:30px 28px 32px;border-right:1px solid var(--line)}
    .step:last-child{border-right:0}
    .step-no{color:var(--orange-deep);font-size:14px;font-weight:900}
    .step h3{font-size:21px;margin:18px 0 8px}
    .step p{color:var(--muted);font-size:15px;margin:0}
    .info-band{display:grid;grid-template-columns:.85fr 1.15fr;gap:45px;align-items:stretch}
    .info-intro{background:var(--night);color:var(--white);border-radius:var(--radius);padding:35px}
    .info-intro h2{font-size:32px;line-height:1.3;margin:14px 0}
    .info-intro p{color:#c6c9c1;margin:0}
    .info-list{display:grid;gap:0}
    .info-row{display:grid;grid-template-columns:130px 1fr auto;align-items:center;gap:18px;padding:21px 0;border-bottom:1px solid var(--line)}
    .info-row:first-child{border-top:1px solid var(--line)}
    .info-row b{color:var(--orange-deep);font-size:13px}
    .info-row h3{font-size:18px;margin:0}
    .info-row span{color:var(--orange-deep);font-size:21px}
    .topic-strip{padding:0 0 82px}
    .topic-nav{display:flex;gap:10px;flex-wrap:wrap}
    .topic-nav a{padding:13px 17px;border:1px solid var(--line);border-radius:12px;background:var(--paper-strong);font-weight:700;transition:.25s}
    .topic-nav a:hover{border-color:var(--orange);color:var(--orange-deep);transform:translateY(-2px)}
    .faq-section{background:#eee9df}
    .faq-grid{display:grid;grid-template-columns:.7fr 1.3fr;gap:70px}
    .faq-intro p{color:var(--muted);margin-top:15px}
    .faq-list{border-top:1px solid var(--line)}
    details{border-bottom:1px solid var(--line);padding:19px 0}
    summary{cursor:pointer;font-weight:800;list-style:none;padding-right:30px;position:relative}
    summary::-webkit-details-marker{display:none}
    summary:after{content:"+";position:absolute;right:2px;color:var(--orange-deep);font-size:23px;top:-4px}
    details[open] summary:after{content:"−"}
    details p{color:var(--muted);margin:12px 0 2px;font-size:15px}
    .cta{padding:80px 0}
    .cta-box{border:1px solid var(--line);border-radius:20px;padding:40px;display:flex;justify-content:space-between;align-items:center;gap:28px;background:var(--paper-strong)}
    .cta-box h2{margin:0;font-size:31px}.cta-box p{color:var(--muted);margin:6px 0 0}
    .site-footer{background:var(--night);color:var(--white);padding:54px 0 25px}
    .footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:35px;padding-bottom:42px}
    .footer-brand p{color:#aeb3a8;font-size:14px;max-width:285px;margin-top:15px}
    .footer-title{font-size:14px;font-weight:800;color:var(--orange);margin-bottom:13px}
    .footer-links{display:grid;gap:8px}.footer-links a{color:#c6c9c1;font-size:14px;transition:.2s}
    .footer-links a:hover{color:var(--orange)}
    .copyright{border-top:1px solid rgba(255,255,255,.12);padding-top:20px;color:#92988d;font-size:12px;display:flex;justify-content:space-between;gap:15px;flex-wrap:wrap}
    @media(max-width:1100px){.main-nav a{padding:8px 7px;font-size:13px}.hero-grid{gap:42px}}
    @media(max-width:900px){.main-nav{display:none}.menu-toggle{display:block}.header-action{margin-left:auto}.hero-grid,.info-band,.faq-grid{grid-template-columns:1fr}.hero-art{max-width:650px}.path-grid{grid-template-columns:1fr 1fr}.path-card.feature{grid-row:auto;min-height:280px}.steps{grid-template-columns:1fr}.step{border-right:0;border-bottom:1px solid var(--line)}.step:last-child{border-bottom:0}.footer-grid{grid-template-columns:1.4fr 1fr 1fr}}
    @media(max-width:600px){.container{width:min(calc(100% - 32px),var(--container))}.site-header{height:72px}.logo{font-size:17px}.logo-mark{width:32px;height:32px}.header-action .btn{min-height:40px;padding:0 13px;font-size:13px}.hero{padding:62px 0}.hero h1{font-size:39px}.hero-copy{font-size:16px}.hero-buttons .btn{width:100%}.route-board{transform:none}.section{padding:58px 0}.section-head{display:block}.section-head h2{font-size:29px;margin-bottom:12px}.path-grid{grid-template-columns:1fr}.path-card.feature{min-height:260px}.path-card h3{margin-top:30px}.info-row{grid-template-columns:82px 1fr auto;gap:10px}.info-row h3{font-size:16px}.topic-strip{padding-bottom:55px}.cta{padding:55px 0}.cta-box{display:block;padding:28px}.cta-box h2{font-size:26px}.cta-box .btn{margin-top:22px;width:100%}.footer-grid{grid-template-columns:1fr 1fr;gap:28px}.footer-brand{grid-column:1/-1}}

/* roulang page: category3 */
:root{
      --ink:#171816;
      --night:#20221f;
      --night-soft:#292c27;
      --paper:#f5f1e9;
      --paper-strong:#fffdf8;
      --orange:#d98736;
      --orange-deep:#b96322;
      --mint:#8bb7a6;
      --muted:#777a71;
      --line:#dcd7cb;
      --white:#fffdf8;
      --shadow:0 18px 48px rgba(29,29,23,.12);
      --soft-shadow:0 8px 24px rgba(29,29,23,.08);
      --radius:18px;
      --container:1200px;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{margin:0;font-family:"Noto Sans SC","PingFang SC","Microsoft YaHei",sans-serif;color:var(--ink);background:var(--paper);line-height:1.7;font-size:16px}
    a{color:inherit;text-decoration:none}
    img{display:block;max-width:100%}
    button,input{font:inherit}
    button{cursor:pointer}
    .container{width:min(calc(100% - 48px),var(--container));margin:0 auto}
    .site-header{height:82px;background:rgba(32,34,31,.98);color:var(--white);display:flex;align-items:center;position:sticky;top:0;z-index:20;border-bottom:1px solid rgba(255,255,255,.08)}
    .header-inner{display:flex;align-items:center;justify-content:space-between;gap:24px}
    .logo{font-weight:800;font-size:21px;letter-spacing:-.04em;white-space:nowrap;display:flex;align-items:center;gap:10px}
    .logo-mark{width:35px;height:35px;border-radius:10px;background:var(--orange);display:grid;place-items:center;color:var(--night);font-weight:900;font-size:18px}
    .main-nav{display:flex;align-items:center;gap:3px}
    .main-nav a{color:#d9dbd3;font-size:14px;padding:9px 10px;border-radius:9px;transition:.25s}
    .main-nav a:hover,.main-nav a.active{color:#fff;background:rgba(217,135,54,.16)}
    .main-nav a.active{box-shadow:inset 0 -2px var(--orange)}
    .header-action{flex:none}
    .btn{display:inline-flex;align-items:center;justify-content:center;gap:9px;min-height:46px;padding:0 20px;border-radius:11px;border:1px solid transparent;font-weight:700;transition:transform .25s,background .25s,box-shadow .25s}
    .btn:hover{transform:translateY(-2px)}
    .btn:focus-visible,.main-nav a:focus-visible,.menu-toggle:focus-visible,.topic-nav a:focus-visible{outline:3px solid rgba(217,135,54,.45);outline-offset:3px}
    .btn-primary{background:var(--orange);color:var(--night);box-shadow:0 7px 18px rgba(217,135,54,.22)}
    .btn-primary:hover{background:#e49a4e;box-shadow:0 10px 24px rgba(217,135,54,.3)}
    .btn-ghost{border-color:rgba(255,255,255,.3);color:var(--white)}
    .btn-ghost:hover{border-color:var(--orange);color:var(--orange)}
    .menu-toggle{display:none;border:0;background:transparent;color:var(--white);font-size:25px;padding:8px}
    .hero{background:var(--night);color:var(--white);position:relative;overflow:hidden;padding:84px 0 78px}
    .hero:before{content:"";position:absolute;width:520px;height:520px;border:1px solid rgba(217,135,54,.22);border-radius:50%;right:-130px;top:-220px}
    .hero:after{content:"";position:absolute;width:270px;height:270px;border:1px solid rgba(139,183,166,.2);border-radius:50%;right:170px;bottom:-190px}
    .hero-grid{display:grid;grid-template-columns:1.02fr .98fr;align-items:center;gap:72px;position:relative;z-index:1}
    .eyebrow,.section-kicker{color:var(--orange);font-weight:800;font-size:13px;letter-spacing:.12em}
    .eyebrow{margin-bottom:18px}
    h1,h2,h3,p{margin-top:0}
    .hero h1{font-size:clamp(38px,5vw,62px);line-height:1.16;letter-spacing:-.055em;max-width:720px;margin-bottom:20px}
    .hero h1 em{color:var(--orange);font-style:normal}
    .hero-copy{color:#c6c9c1;max-width:620px;margin-bottom:30px;font-size:18px}
    .hero-buttons{display:flex;gap:13px;flex-wrap:wrap}
    .signal-board{position:relative;min-height:330px;background:#2b2e29;border:1px solid rgba(255,255,255,.12);border-radius:24px;padding:25px;box-shadow:var(--shadow);transform:rotate(2deg)}
    .signal-top{display:flex;justify-content:space-between;align-items:center;color:#c6c9c1;font-size:13px;border-bottom:1px solid rgba(255,255,255,.12);padding-bottom:17px}
    .signal-dot{width:9px;height:9px;background:var(--orange);border-radius:50%;display:inline-block;margin-right:7px}
    .signal-feature{margin-top:28px;background:var(--orange);color:var(--night);border-radius:15px;padding:22px}
    .signal-feature small{font-weight:800;letter-spacing:.08em}
    .signal-feature h3{font-size:25px;line-height:1.3;margin:15px 0 8px}
    .signal-lines{display:grid;gap:13px;margin-top:23px}
    .signal-line{height:9px;background:rgba(255,255,255,.16);border-radius:20px}
    .signal-line:nth-child(1){width:88%}.signal-line:nth-child(2){width:69%}.signal-line:nth-child(3){width:77%}
    .section{padding:84px 0}
    .section-head{display:flex;align-items:end;justify-content:space-between;gap:20px;margin-bottom:32px}
    .section-kicker{color:var(--orange-deep);margin-bottom:7px}
    .section-head h2{font-size:34px;line-height:1.25;letter-spacing:-.04em;margin-bottom:0}
    .section-head p{max-width:470px;color:var(--muted);margin-bottom:0}
    .feature-wrap{display:grid;grid-template-columns:1.08fr .92fr;gap:22px}
    .feature-card{min-height:330px;border-radius:var(--radius);padding:32px;background:var(--orange);color:var(--night);position:relative;overflow:hidden}
    .feature-card:after{content:"J9";position:absolute;right:20px;bottom:-46px;font-size:180px;line-height:1;font-weight:900;color:rgba(255,255,255,.18)}
    .feature-card h3{font-size:31px;line-height:1.3;max-width:520px;margin:55px 0 13px;position:relative;z-index:1}
    .feature-card p{max-width:470px;position:relative;z-index:1}
    .label{display:inline-flex;padding:6px 11px;border-radius:30px;background:rgba(32,34,31,.12);font-size:12px;font-weight:800}
    .quick-panel{display:grid;gap:14px}
    .quick-item{background:var(--paper-strong);border:1px solid var(--line);border-radius:15px;padding:22px 24px;display:flex;align-items:center;gap:18px;transition:.25s}
    .quick-item:hover,.news-item:hover{transform:translateY(-3px);box-shadow:var(--soft-shadow);border-color:var(--orange)}
    .quick-number{color:var(--orange-deep);font-weight:900;font-size:14px}
    .quick-item h3{font-size:18px;margin:0 0 3px}
    .quick-item p{font-size:13px;color:var(--muted);margin:0}
    .arrow{margin-left:auto;color:var(--orange);font-size:22px}
    .news-section{background:var(--paper-strong)}
    .news-layout{display:grid;grid-template-columns:.72fr 1.28fr;gap:60px}
    .news-intro{background:var(--night);border-radius:var(--radius);padding:30px;color:var(--white);min-height:280px}
    .news-intro h3{font-size:28px;line-height:1.35;margin:65px 0 12px}
    .news-intro p{color:#c6c9c1;font-size:14px}
    .news-list{border-top:1px solid var(--line)}
    .news-item{display:grid;grid-template-columns:105px 1fr auto;gap:18px;align-items:center;padding:20px 0;border-bottom:1px solid var(--line);transition:.25s}
    .news-meta{font-size:12px;color:var(--muted)}
    .news-meta b{display:block;color:var(--orange-deep);margin-bottom:4px}
    .news-item h3{font-size:18px;line-height:1.4;margin:0 0 4px}
    .news-item p{font-size:13px;color:var(--muted);margin:0;display:-webkit-box;-webkit-line-clamp:1;-webkit-box-orient:vertical;overflow:hidden}
    .topic-section{background:#eee9df}
    .topic-nav{display:flex;gap:10px;flex-wrap:wrap;margin-top:25px}
    .topic-nav a{padding:13px 17px;border:1px solid var(--line);border-radius:12px;background:var(--paper-strong);font-weight:700;transition:.25s}
    .topic-nav a:hover{border-color:var(--orange);color:var(--orange-deep);transform:translateY(-2px)}
    .timeline{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;margin-top:35px}
    .timeline-card{padding:24px;background:var(--paper-strong);border:1px solid var(--line);border-radius:15px}
    .timeline-card strong{display:block;color:var(--orange-deep);font-size:25px;margin-bottom:12px}
    .timeline-card h3{font-size:19px;margin-bottom:8px}
    .timeline-card p{color:var(--muted);font-size:14px;margin:0}
    .faq-section{padding:84px 0}
    .faq-grid{display:grid;grid-template-columns:.7fr 1.3fr;gap:70px}
    .faq-intro p{color:var(--muted);margin-top:15px}
    .faq-list{border-top:1px solid var(--line)}
    details{border-bottom:1px solid var(--line);padding:19px 0}
    summary{cursor:pointer;font-weight:800;list-style:none;display:flex;justify-content:space-between;gap:20px}
    summary::-webkit-details-marker{display:none}
    summary:after{content:"＋";color:var(--orange-deep);font-size:21px;line-height:1}
    details[open] summary:after{content:"−"}
    details p{color:var(--muted);font-size:14px;margin:13px 35px 2px 0}
    .cta{padding:0 0 84px}
    .cta-box{border:1px solid var(--line);border-radius:20px;padding:38px 42px;display:flex;justify-content:space-between;align-items:center;gap:28px;background:var(--paper-strong)}
    .cta-box h2{font-size:29px;margin-bottom:5px}
    .cta-box p{color:var(--muted);margin:0}
    .site-footer{background:var(--night);color:var(--white);padding:54px 0 25px}
    .footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:35px;padding-bottom:42px}
    .footer-brand p{color:#aeb3a8;font-size:14px;max-width:285px;margin-top:15px}
    .footer-title{font-size:14px;font-weight:800;color:var(--orange);margin-bottom:13px}
    .footer-links{display:grid;gap:8px}
    .footer-links a{color:#c6c9c1;font-size:14px;transition:.2s}
    .footer-links a:hover{color:var(--orange)}
    .copyright{border-top:1px solid rgba(255,255,255,.1);padding-top:18px;color:#92988d;font-size:12px;display:flex;justify-content:space-between;gap:15px;flex-wrap:wrap}
    @media(max-width:1100px){
      .main-nav{gap:0}.main-nav a{padding:8px 7px;font-size:13px}
      .hero-grid{gap:40px}.news-layout{gap:35px}
    }
    @media(max-width:900px){
      .main-nav{display:none;position:absolute;left:24px;right:24px;top:76px;background:var(--night-soft);padding:12px;border-radius:14px;box-shadow:var(--shadow);flex-direction:column;align-items:stretch}
      .main-nav.is-open{display:flex}.main-nav a{padding:12px 14px}
      .menu-toggle{display:block}.header-inner{gap:10px}.header-action .btn{min-height:42px;padding:0 13px;font-size:13px}
      .hero-grid,.feature-wrap,.news-layout,.faq-grid{grid-template-columns:1fr}
      .hero{padding:65px 0}.signal-board{max-width:600px;margin:0 auto;transform:none}
      .news-intro{min-height:0}.news-intro h3{margin-top:35px}
      .timeline{grid-template-columns:1fr 1fr}.footer-grid{grid-template-columns:1.5fr 1fr 1fr}
    }
    @media(max-width:640px){
      .container{width:min(calc(100% - 32px),var(--container))}
      .site-header{height:74px}.main-nav{left:16px;right:16px;top:69px}
      .logo{font-size:17px}.logo-mark{width:32px;height:32px;font-size:16px}
      .hero h1{font-size:38px}.hero-copy{font-size:16px}.hero-buttons .btn{width:100%}
      .section,.faq-section{padding:54px 0}.section-head{display:block;margin-bottom:24px}
      .section-head h2{font-size:28px;margin-bottom:12px}.feature-card{min-height:300px;padding:25px}.feature-card h3{font-size:25px;margin-top:48px}
      .news-item{grid-template-columns:1fr auto;gap:8px;padding:17px 0}.news-meta{grid-column:1/-1;display:flex;gap:12px}.news-meta b{margin:0}
      .news-item p{display:none}.news-item h3{font-size:16px}.timeline{grid-template-columns:1fr}
      .cta-box{padding:28px 24px;display:block}.cta-box h2{font-size:25px}.cta-box .btn{width:100%;margin-top:22px}
      .footer-grid{grid-template-columns:1fr 1fr;gap:30px}.footer-brand{grid-column:1/-1}
      .copyright{display:block}.copyright span{display:block;margin-bottom:6px}
    }

/* roulang page: article */
:root{
  --ink:#171816;
  --night:#20221f;
  --night-soft:#292c27;
  --paper:#f5f1e9;
  --paper-strong:#fffdf8;
  --orange:#d98736;
  --orange-deep:#b96322;
  --mint:#8bb7a6;
  --muted:#777a71;
  --line:#dcd7cb;
  --white:#fffdf8;
  --shadow:0 18px 48px rgba(29,29,23,.12);
  --soft-shadow:0 8px 24px rgba(29,29,23,.08);
  --radius:18px;
  --container:1200px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;font-family:"Noto Sans SC","PingFang SC","Microsoft YaHei",sans-serif;color:var(--ink);background:var(--paper);line-height:1.7;font-size:16px}
a{color:inherit;text-decoration:none}
button,input{font:inherit}
button{cursor:pointer}
img{display:block;max-width:100%}
.container{width:min(calc(100% - 48px),var(--container));margin:0 auto}
.site-header{height:82px;background:rgba(32,34,31,.97);color:var(--white);display:flex;align-items:center;position:sticky;top:0;z-index:20;border-bottom:1px solid rgba(255,255,255,.08)}
.header-inner{display:flex;align-items:center;justify-content:space-between;gap:26px}
.logo{font-weight:800;font-size:21px;letter-spacing:-.04em;white-space:nowrap;display:flex;align-items:center;gap:10px}
.logo-mark{width:35px;height:35px;border-radius:10px;background:var(--orange);display:grid;place-items:center;color:var(--night);font-weight:900;font-size:18px}
.main-nav{display:flex;align-items:center;gap:3px}
.main-nav a{color:#d9dbd3;font-size:14px;padding:9px 11px;border-radius:9px;transition:.25s}
.main-nav a:hover,.main-nav a.active{color:#fff;background:rgba(217,135,54,.16)}
.main-nav a.active{box-shadow:inset 0 -2px var(--orange)}
.header-action{flex:none}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:9px;min-height:46px;padding:0 20px;border-radius:11px;border:1px solid transparent;font-weight:700;transition:transform .25s,background .25s,box-shadow .25s,border-color .25s}
.btn:hover{transform:translateY(-2px)}
.btn:active{transform:translateY(0)}
.btn:focus-visible,.main-nav a:focus-visible,.menu-toggle:focus-visible,.article-content a:focus-visible{outline:3px solid rgba(217,135,54,.45);outline-offset:3px}
.btn-primary{background:var(--orange);color:var(--night);box-shadow:0 7px 18px rgba(217,135,54,.22)}
.btn-primary:hover{background:#e49a4e;box-shadow:0 10px 24px rgba(217,135,54,.3)}
.btn-ghost{border-color:rgba(255,255,255,.3);color:var(--white)}
.btn-ghost:hover{border-color:var(--orange);color:var(--orange)}
.btn-dark{background:var(--night);color:var(--white)}
.btn-dark:hover{background:#343730;color:var(--white)}
.menu-toggle{display:none;border:0;background:transparent;color:var(--white);font-size:25px;padding:8px}
.article-hero{background:var(--night);color:var(--white);padding:43px 0 72px;position:relative;overflow:hidden}
.article-hero:before{content:"";position:absolute;width:470px;height:470px;border:1px solid rgba(217,135,54,.22);border-radius:50%;right:-155px;top:-205px}
.article-hero:after{content:"";position:absolute;width:220px;height:220px;border:1px solid rgba(139,183,166,.16);border-radius:50%;left:-90px;bottom:-125px}
.breadcrumb{position:relative;z-index:1;display:flex;gap:9px;align-items:center;flex-wrap:wrap;font-size:13px;color:#afb4aa;margin-bottom:28px}
.breadcrumb a{transition:.2s}
.breadcrumb a:hover{color:var(--orange)}
.breadcrumb i{font-style:normal;color:#72776e}
.article-hero-inner{max-width:930px;position:relative;z-index:1}
.article-category{display:inline-flex;align-items:center;gap:7px;color:var(--orange);font-size:13px;font-weight:800;letter-spacing:.1em;margin-bottom:15px}
.article-category:before{content:"";width:7px;height:7px;border-radius:50%;background:var(--orange)}
.article-hero h1{font-size:clamp(32px,4.7vw,56px);line-height:1.2;letter-spacing:-.05em;margin:0;max-width:950px}
.article-summary{max-width:800px;color:#c4c8bf;font-size:17px;margin:22px 0 0}
.article-meta{display:flex;gap:17px;flex-wrap:wrap;margin-top:25px;color:#aeb3a8;font-size:13px}
.article-meta span{display:inline-flex;align-items:center;gap:7px}
.article-meta b{font-weight:700;color:#e1e3dc}
.article-wrap{padding:70px 0 88px}
.reading-layout{display:grid;grid-template-columns:minmax(0,830px) 220px;justify-content:center;gap:55px;align-items:start}
.article-panel{background:var(--paper-strong);border:1px solid var(--line);border-radius:var(--radius);padding:clamp(25px,5vw,58px);box-shadow:var(--soft-shadow)}
.article-intro{border-left:4px solid var(--orange);background:#f4eadc;padding:17px 19px;margin-bottom:35px;color:#514a40;font-size:16px}
.article-content{font-size:17px;line-height:1.95;color:#30312d;overflow-wrap:anywhere}
.article-content>*:first-child{margin-top:0}
.article-content h2{font-size:29px;line-height:1.35;letter-spacing:-.035em;color:var(--ink);margin:52px 0 18px;padding-top:5px}
.article-content h3{font-size:22px;line-height:1.45;color:var(--ink);margin:35px 0 14px}
.article-content p{margin:0 0 22px}
.article-content a{color:var(--orange-deep);font-weight:700;text-decoration:underline;text-decoration-thickness:1px;text-underline-offset:4px}
.article-content a:hover{color:var(--orange)}
.article-content ul,.article-content ol{padding-left:1.45em;margin:0 0 24px}
.article-content li{padding-left:4px;margin:8px 0}
.article-content blockquote{margin:30px 0;padding:18px 23px;background:#f0eee6;border-left:4px solid var(--mint);color:#565951;font-size:16px}
.article-content img{border-radius:13px;margin:30px auto;box-shadow:var(--soft-shadow)}
.article-content figure{margin:30px 0}
.article-content figcaption{text-align:center;color:var(--muted);font-size:13px;margin-top:9px}
.article-content table{width:100%;border-collapse:collapse;margin:28px 0;font-size:15px}
.article-content th,.article-content td{border:1px solid var(--line);padding:11px 13px;text-align:left;vertical-align:top}
.article-content th{background:#eee9df;color:var(--ink)}
.reading-side{position:sticky;top:108px}
.side-card{border-top:2px solid var(--orange);padding-top:15px}
.side-card h2{font-size:14px;font-weight:900;letter-spacing:.08em;margin:0 0 13px}
.side-links{display:grid;border-top:1px solid var(--line)}
.side-links a{padding:12px 0;border-bottom:1px solid var(--line);font-size:14px;font-weight:700;transition:.2s}
.side-links a:hover{color:var(--orange-deep);padding-left:5px}
.side-download{margin-top:28px;background:var(--night-soft);border-radius:15px;padding:22px;color:var(--white)}
.side-download p{font-size:13px;line-height:1.65;color:#c7cbc2;margin:9px 0 17px}
.side-download .btn{width:100%;min-height:42px;padding:0 12px}
.empty-article{text-align:center;padding:42px 15px}
.empty-icon{width:62px;height:62px;border-radius:18px;background:#f1e4d5;color:var(--orange-deep);display:grid;place-items:center;font-size:28px;margin:0 auto 18px}
.empty-article h2{font-size:25px;margin:0 0 9px}
.empty-article p{color:var(--muted);margin:0 0 23px}
.related-section{padding:0 0 84px}
.related-box{border-top:1px solid var(--line);padding-top:47px}
.section-head{display:flex;align-items:end;justify-content:space-between;gap:20px;margin-bottom:25px}
.section-kicker{font-size:12px;color:var(--orange-deep);font-weight:800;letter-spacing:.14em;margin-bottom:6px}
.section-head h2{font-size:30px;letter-spacing:-.04em;margin:0}
.section-head p{max-width:435px;color:var(--muted);margin:0;font-size:14px}
.related-grid{display:grid;grid-template-columns:1.2fr 1fr 1fr;gap:16px}
.related-card{background:var(--paper-strong);border:1px solid var(--line);border-radius:15px;padding:23px;min-height:215px;display:flex;flex-direction:column;transition:.25s}
.related-card:hover{transform:translateY(-4px);box-shadow:var(--soft-shadow);border-color:#c9a57d}
.related-card.featured{background:var(--orange);border-color:var(--orange);color:var(--night)}
.card-top{display:flex;justify-content:space-between;gap:10px;align-items:center;font-size:12px;color:var(--orange-deep);font-weight:800}
.featured .card-top{color:#66401d}
.related-card h3{font-size:20px;line-height:1.4;letter-spacing:-.025em;margin:22px 0 9px}
.related-card p{font-size:13px;line-height:1.7;color:var(--muted);margin:0;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}
.featured p{color:#51391f}
.card-arrow{margin-top:auto;padding-top:18px;font-size:14px;font-weight:800;color:var(--orange-deep)}
.featured .card-arrow{color:var(--night)}
.article-nav{display:flex;justify-content:space-between;gap:17px;border-top:1px solid var(--line);padding-top:28px}
.article-nav a{width:50%;background:var(--paper-strong);border:1px solid var(--line);border-radius:13px;padding:16px 18px;font-size:14px;font-weight:700;transition:.25s}
.article-nav a:last-child{text-align:right}
.article-nav a:hover{border-color:var(--orange);color:var(--orange-deep);transform:translateY(-2px)}
.article-nav small{display:block;color:var(--muted);font-weight:400;margin-bottom:3px}
.cta{padding:0 0 80px}
.cta-box{border:1px solid var(--line);border-radius:20px;padding:40px;display:flex;justify-content:space-between;align-items:center;gap:28px;background:var(--paper-strong)}
.cta-box h2{font-size:28px;letter-spacing:-.035em;margin:0}
.cta-box p{color:var(--muted);margin:6px 0 0}
.site-footer{background:var(--night);color:var(--white);padding:54px 0 25px}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:35px;padding-bottom:42px}
.footer-brand p{color:#aeb3a8;font-size:14px;max-width:285px;margin-top:15px}
.footer-title{font-size:14px;font-weight:800;color:var(--orange);margin-bottom:13px}
.footer-links{display:grid;gap:8px}
.footer-links a{color:#c6c9c1;font-size:14px;transition:.2s}
.footer-links a:hover{color:var(--orange)}
.copyright{border-top:1px solid rgba(255,255,255,.1);padding-top:19px;display:flex;justify-content:space-between;gap:18px;flex-wrap:wrap;color:#969b90;font-size:12px}
@media(max-width:1100px){
  .main-nav a{font-size:13px;padding:8px 7px}
  .reading-layout{grid-template-columns:minmax(0,780px);max-width:830px;margin:0 auto}
  .reading-side{display:none}
}
@media(max-width:900px){
  .site-header{height:72px}
  .main-nav{display:none;position:absolute;left:0;right:0;top:72px;background:var(--night);padding:14px 24px 22px;border-bottom:1px solid rgba(255,255,255,.1);box-shadow:0 16px 25px rgba(0,0,0,.18);flex-direction:column;align-items:stretch}
  .main-nav.open{display:flex}
  .main-nav a{padding:11px 13px}
  .menu-toggle{display:block;margin-left:auto}
  .header-inner{gap:10px}
  .header-action .btn{min-height:40px;padding:0 13px;font-size:13px}
  .article-hero{padding:33px 0 56px}
  .related-grid{grid-template-columns:1fr 1fr}
  .related-card.featured{grid-column:1/-1}
  .footer-grid{grid-template-columns:1.4fr 1fr 1fr}
  .footer-brand{grid-column:1/-1}
}
@media(max-width:640px){
  .container{width:min(calc(100% - 30px),var(--container))}
  .logo{font-size:17px;gap:7px}
  .logo-mark{width:31px;height:31px;font-size:16px;border-radius:9px}
  .header-action .btn{padding:0 10px;font-size:12px;min-height:38px}
  .menu-toggle{font-size:23px;padding:4px}
  .article-hero h1{font-size:34px}
  .article-summary{font-size:15px}
  .article-wrap{padding:43px 0 58px}
  .article-panel{padding:25px 20px;border-radius:14px}
  .article-content{font-size:16px;line-height:1.9}
  .article-content h2{font-size:25px;margin-top:41px}
  .article-content h3{font-size:20px}
  .article-content table{display:block;overflow-x:auto;white-space:nowrap}
  .article-meta{gap:10px 14px}
  .related-section{padding-bottom:56px}
  .section-head{display:block}
  .section-head h2{font-size:26px}
  .section-head p{margin-top:9px}
  .related-grid{grid-template-columns:1fr}
  .related-card.featured{grid-column:auto}
  .article-nav{flex-direction:column}
  .article-nav a,.article-nav a:last-child{width:100%;text-align:left}
  .cta{padding-bottom:55px}
  .cta-box{padding:28px 22px;display:block}
  .cta-box h2{font-size:25px}
  .cta-box .btn{margin-top:20px;width:100%}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px 20px}
  .footer-brand{grid-column:1/-1}
  .copyright{display:grid;gap:5px}
}
@media(max-width:400px){
  .header-action{display:none}
  .article-hero h1{font-size:30px}
  .footer-grid{grid-template-columns:1fr}
}

/* roulang page: category1 */
:root{
      --ink:#171816;
      --night:#20221f;
      --night-soft:#292c27;
      --paper:#f5f1e9;
      --paper-strong:#fffdf8;
      --orange:#d98736;
      --orange-deep:#b96322;
      --mint:#8bb7a6;
      --muted:#777a71;
      --line:#dcd7cb;
      --white:#fffdf8;
      --shadow:0 18px 48px rgba(29,29,23,.12);
      --soft-shadow:0 8px 24px rgba(29,29,23,.08);
      --radius:18px;
      --container:1200px;
    }
    *,*::before,*::after{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{margin:0;font-family:"Noto Sans SC","PingFang SC","Microsoft YaHei",sans-serif;color:var(--ink);background:var(--paper);line-height:1.7;font-size:16px}
    a{color:inherit;text-decoration:none}
    a:hover{color:inherit}
    button,input{font:inherit}
    button{cursor:pointer}
    img{display:block;max-width:100%}
    h1,h2,h3,h4,p{margin:0}
    ul{margin:0;padding:0;list-style:none}
    .container{width:min(calc(100% - 48px),var(--container));margin:0 auto}
    .site-header{height:82px;background:rgba(32,34,31,.98);color:var(--white);display:flex;align-items:center;position:sticky;top:0;z-index:20;border-bottom:1px solid rgba(255,255,255,.08)}
    .header-inner{display:flex;align-items:center;justify-content:space-between;gap:24px}
    .logo{font-weight:800;font-size:21px;letter-spacing:-.04em;white-space:nowrap;display:flex;align-items:center;gap:10px}
    .logo-mark{width:35px;height:35px;border-radius:10px;background:var(--orange);display:grid;place-items:center;color:var(--night);font-weight:900;font-size:18px}
    .main-nav{display:flex;align-items:center;gap:3px}
    .main-nav a{color:#d9dbd3;font-size:14px;padding:9px 10px;border-radius:9px;transition:.25s}
    .main-nav a:hover,.main-nav a.active{color:#fff;background:rgba(217,135,54,.16)}
    .main-nav a.active{box-shadow:inset 0 -2px var(--orange)}
    .header-action{flex:none}
    .btn{display:inline-flex;align-items:center;justify-content:center;gap:9px;min-height:46px;padding:0 20px;border-radius:11px;border:1px solid transparent;font-weight:700;transition:transform .25s,background .25s,box-shadow .25s,border-color .25s}
    .btn:hover{transform:translateY(-2px)}
    .btn:focus-visible,.main-nav a:focus-visible,.menu-toggle:focus-visible,.faq-question:focus-visible{outline:3px solid rgba(217,135,54,.45);outline-offset:3px}
    .btn-primary{background:var(--orange);color:var(--night);box-shadow:0 7px 18px rgba(217,135,54,.22)}
    .btn-primary:hover{background:#e49a4e;box-shadow:0 10px 24px rgba(217,135,54,.3)}
    .btn-ghost{border-color:rgba(255,255,255,.3);color:var(--white)}
    .btn-ghost:hover{border-color:var(--orange);color:var(--orange)}
    .btn-dark{background:var(--night);color:var(--white)}
    .menu-toggle{display:none;border:0;background:transparent;color:var(--white);font-size:25px;padding:8px}
    .hero{background:var(--night);color:var(--white);position:relative;overflow:hidden;padding:88px 0 82px}
    .hero:before{content:"";position:absolute;width:590px;height:590px;border:1px solid rgba(217,135,54,.2);border-radius:50%;right:-180px;top:-260px}
    .hero:after{content:"";position:absolute;width:300px;height:300px;border:1px solid rgba(139,183,166,.2);border-radius:50%;right:150px;bottom:-190px}
    .hero-grid{display:grid;grid-template-columns:1fr 1fr;align-items:center;gap:70px;position:relative;z-index:1}
    .eyebrow{color:var(--orange);font-weight:800;font-size:13px;letter-spacing:.12em;margin-bottom:18px}
    .hero h1{font-size:clamp(38px,5vw,62px);line-height:1.16;letter-spacing:-.055em;max-width:650px}
    .hero h1 em{color:var(--orange);font-style:normal}
    .hero-copy{color:#c6c9c1;max-width:580px;margin:22px 0 30px;font-size:18px}
    .hero-buttons{display:flex;gap:13px;flex-wrap:wrap}
    .hero-visual{min-height:350px;position:relative;display:flex;align-items:center;justify-content:center}
    .game-board{width:min(100%,470px);height:300px;background:#30342d;border:1px solid rgba(255,255,255,.15);border-radius:24px;box-shadow:var(--shadow);padding:22px;transform:rotate(3deg);position:relative;overflow:hidden}
    .game-board:before{content:"";position:absolute;width:230px;height:230px;border-radius:50%;background:rgba(217,135,54,.2);right:-50px;top:-50px}
    .board-top{display:flex;justify-content:space-between;align-items:center;color:#cfd4c8;font-size:12px;border-bottom:1px solid rgba(255,255,255,.1);padding-bottom:16px}
    .board-logo{color:var(--orange);font-size:22px;font-weight:900}
    .board-content{display:grid;grid-template-columns:1.1fr .9fr;gap:18px;margin-top:23px;position:relative;z-index:1}
    .board-title{font-size:27px;line-height:1.25;font-weight:800}
    .board-title span{color:var(--orange)}
    .board-line{height:8px;background:rgba(255,255,255,.13);border-radius:10px;margin-top:18px;width:80%}
    .board-line.short{width:55%;margin-top:9px}
    .board-orb{height:145px;border-radius:18px;background:linear-gradient(145deg,#c9782f,#7e4325 58%,#3c3930);position:relative}
    .board-orb:after{content:"J9";position:absolute;right:18px;bottom:12px;color:rgba(255,255,255,.75);font-size:42px;font-weight:900}
    .visual-note{position:absolute;right:-12px;top:35px;background:var(--orange);color:var(--night);padding:13px 17px;border-radius:13px;transform:rotate(9deg);font-weight:900;box-shadow:var(--soft-shadow)}
    .visual-index{position:absolute;left:0;bottom:18px;background:var(--mint);color:var(--night);padding:12px 16px;border-radius:12px;font-weight:800}
    .section{padding:84px 0}
    .section-head{display:flex;align-items:end;justify-content:space-between;gap:20px;margin-bottom:32px}
    .section-kicker{font-size:12px;color:var(--orange-deep);font-weight:800;letter-spacing:.14em;margin-bottom:6px}
    .section-head h2{font-size:clamp(28px,3vw,40px);line-height:1.25;letter-spacing:-.04em}
    .section-head p{max-width:470px;color:var(--muted)}
    .path-section{background:var(--paper-strong)}
    .path-layout{display:grid;grid-template-columns:1.2fr .8fr;gap:22px}
    .path-main,.path-list{border:1px solid var(--line);border-radius:var(--radius);background:var(--paper);overflow:hidden}
    .path-main{padding:34px;min-height:270px;position:relative}
    .path-main:after{content:"J9";position:absolute;right:28px;bottom:-22px;font-size:160px;font-weight:900;color:rgba(217,135,54,.12);line-height:1}
    .path-number{color:var(--orange-deep);font-weight:900;font-size:13px;letter-spacing:.12em}
    .path-main h3{font-size:30px;line-height:1.3;margin:24px 0 12px;position:relative;z-index:1}
    .path-main p{color:var(--muted);max-width:470px;position:relative;z-index:1}
    .path-link{display:inline-flex;margin-top:25px;color:var(--orange-deep);font-weight:800;position:relative;z-index:1}
    .path-list{background:#eee9df;padding:12px}
    .path-item{display:flex;align-items:center;gap:15px;padding:18px 16px;border-bottom:1px solid var(--line);transition:.25s}
    .path-item:last-child{border-bottom:0}
    .path-item:hover{background:var(--paper-strong);padding-left:21px}
    .path-item b{width:34px;height:34px;border-radius:10px;background:var(--night);color:var(--orange);display:grid;place-items:center;font-size:13px}
    .path-item strong{display:block;font-size:16px}
    .path-item span{display:block;color:var(--muted);font-size:13px;margin-top:2px}
    .feature-section{background:var(--paper)}
    .feature-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:24px}
    .feature-card{min-height:300px;border-radius:var(--radius);padding:32px;background:var(--night);color:var(--white);position:relative;overflow:hidden}
    .feature-card:after{content:"";position:absolute;width:220px;height:220px;border:1px solid rgba(217,135,54,.35);border-radius:50%;right:-55px;bottom:-65px}
    .feature-card h3{font-size:30px;line-height:1.3;margin:55px 0 13px;max-width:430px;position:relative;z-index:1}
    .feature-card p{color:#c5c9bf;max-width:430px;position:relative;z-index:1}
    .feature-card .tag{position:relative;z-index:1}
    .feature-side{display:grid;grid-template-columns:1fr 1fr;gap:16px}
    .mini-card{background:var(--paper-strong);border:1px solid var(--line);border-radius:15px;padding:23px;min-height:142px;transition:.25s}
    .mini-card:hover{transform:translateY(-4px);box-shadow:var(--soft-shadow);border-color:var(--orange)}
    .mini-card .mini-icon{color:var(--orange-deep);font-size:22px;font-weight:900}
    .mini-card h3{font-size:18px;margin:17px 0 5px}
    .mini-card p{font-size:13px;color:var(--muted);line-height:1.6}
    .tag{display:inline-flex;padding:5px 10px;border-radius:30px;background:rgba(255,255,255,.1);color:#d5d8d0;font-size:12px}
    .news-section{background:var(--paper-strong)}
    .news-layout{display:grid;grid-template-columns:.72fr 1.28fr;gap:50px}
    .news-intro{background:var(--orange);border-radius:var(--radius);padding:30px;color:var(--night);min-height:295px}
    .news-intro strong{font-size:13px;letter-spacing:.1em}
    .news-intro h3{font-size:28px;line-height:1.35;margin:50px 0 12px}
    .news-intro p{font-size:14px}
    .news-list{border-top:1px solid var(--line)}
    .news-item{display:grid;grid-template-columns:112px 1fr auto;gap:18px;align-items:center;padding:19px 0;border-bottom:1px solid var(--line);transition:.25s}
    .news-item:hover{transform:translateY(-2px);box-shadow:var(--soft-shadow);padding-left:10px;padding-right:10px}
    .news-meta{font-size:12px;color:var(--muted)}
    .news-meta b{display:block;color:var(--orange-deep);margin-bottom:4px}
    .news-item h3{font-size:18px;line-height:1.4}
    .news-item p{font-size:13px;color:var(--muted);margin-top:4px;display:-webkit-box;-webkit-line-clamp:1;-webkit-box-orient:vertical;overflow:hidden}
    .arrow{color:var(--orange);font-size:22px}
    .guide-section{padding-top:0}
    .topic-nav{display:flex;gap:10px;flex-wrap:wrap;margin-top:25px}
    .topic-nav a{padding:13px 17px;border:1px solid var(--line);border-radius:12px;background:var(--paper-strong);font-weight:700;transition:.25s}
    .topic-nav a:hover{border-color:var(--orange);color:var(--orange-deep);transform:translateY(-2px)}
    .download-section{background:var(--night);color:var(--white);overflow:hidden}
    .download-layout{display:grid;grid-template-columns:1fr .9fr;gap:60px;align-items:center}
    .download-copy h2{font-size:clamp(28px,3.5vw,43px);line-height:1.25;letter-spacing:-.04em}
    .download-copy p{color:#c6c9c1;max-width:560px;margin:17px 0 23px}
    .download-tags{display:flex;flex-wrap:wrap;gap:9px;margin-top:20px}
    .device-stage{height:260px;display:flex;justify-content:center;align-items:center;position:relative}
    .device{width:178px;height:255px;background:#151714;border:7px solid #454a40;border-radius:28px;box-shadow:var(--shadow);padding:9px;transform:rotate(-8deg);position:relative;z-index:2}
    .device-screen{height:100%;border-radius:17px;background:linear-gradient(150deg,#4c3324,#c07831 52%,#8bb7a6);padding:17px 12px;color:var(--white)}
    .device-screen b{font-size:23px}
    .device-screen small{display:block;margin-top:90px;color:#f7eee0}
    .device-back{width:145px;height:210px;background:#373b34;border:1px solid #5b6255;border-radius:23px;transform:rotate(12deg) translate(-7px,12px);position:absolute}
    .download-note{position:absolute;right:5%;top:19px;background:var(--mint);color:var(--night);padding:10px 14px;border-radius:10px;font-size:13px;font-weight:800}
    .faq-section{background:#eee9df}
    .faq-grid{display:grid;grid-template-columns:.7fr 1.3fr;gap:70px}
    .faq-intro p{color:var(--muted);margin-top:15px}
    .faq-list{border-top:1px solid var(--line)}
    .faq-item{border-bottom:1px solid var(--line)}
    .faq-question{width:100%;display:flex;align-items:center;justify-content:space-between;gap:20px;border:0;background:transparent;text-align:left;padding:20px 0;font-weight:800;color:var(--ink)}
    .faq-question span:last-child{font-size:24px;color:var(--orange-deep);transition:.25s}
    .faq-answer{display:none;color:var(--muted);font-size:14px;line-height:1.8;padding:0 42px 21px 0}
    .faq-item.open .faq-answer{display:block}
    .faq-item.open .faq-question span:last-child{transform:rotate(45deg)}
    .cta{padding:80px 0}
    .cta-box{border:1px solid var(--line);border-radius:20px;padding:40px;display:flex;justify-content:space-between;align-items:center;gap:28px;background:var(--paper-strong)}
    .cta-box h2{font-size:30px;line-height:1.3}
    .cta-box p{color:var(--muted);margin-top:7px}
    .site-footer{background:var(--night);color:var(--white);padding:54px 0 25px}
    .footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:35px;padding-bottom:42px}
    .footer-brand p{color:#aeb3a8;font-size:14px;max-width:285px;margin-top:15px}
    .footer-title{font-size:14px;font-weight:800;color:var(--orange);margin-bottom:13px}
    .footer-links{display:grid;gap:8px}
    .footer-links a{color:#c6c9c1;font-size:14px;transition:.2s}
    .footer-links a:hover{color:var(--orange)}
    .copyright{border-top:1px solid rgba(255,255,255,.12);padding-top:20px;display:flex;justify-content:space-between;gap:20px;color:#92988d;font-size:12px}
    @media (max-width:1100px){
      .main-nav a{padding-left:7px;padding-right:7px;font-size:13px}
      .header-action .btn{padding:0 14px}
      .hero-grid{gap:42px}
    }
    @media (max-width:900px){
      .site-header{height:72px}
      .menu-toggle{display:block}
      .header-inner{gap:12px}
      .main-nav{display:none;position:absolute;left:24px;right:24px;top:67px;background:var(--night-soft);padding:12px;border:1px solid rgba(255,255,255,.12);border-radius:14px;box-shadow:var(--shadow);flex-direction:column;align-items:stretch}
      .main-nav.show{display:flex}
      .main-nav a{padding:12px 14px}
      .hero-grid,.path-layout,.feature-grid,.news-layout,.download-layout,.faq-grid{grid-template-columns:1fr}
      .hero{padding:70px 0}
      .hero-visual{min-height:300px}
      .news-intro{min-height:220px}
      .news-intro h3{margin-top:28px}
      .download-layout{gap:20px}
      .download-copy{order:1}
      .device-stage{order:2}
      .footer-grid{grid-template-columns:1.3fr 1fr 1fr}
    }
    @media (max-width:640px){
      .container{width:min(calc(100% - 32px),var(--container))}
      .header-action .btn{min-height:40px;padding:0 12px;font-size:13px}
      .logo{font-size:17px;gap:7px}
      .logo-mark{width:31px;height:31px;font-size:16px}
      .hero{padding:56px 0 52px}
      .hero h1{font-size:39px}
      .hero-copy{font-size:16px}
      .hero-buttons .btn{width:100%}
      .hero-visual{min-height:250px}
      .game-board{height:235px;padding:16px}
      .board-content{margin-top:15px}
      .board-title{font-size:20px}
      .board-orb{height:115px}
      .visual-note{right:-3px;top:15px;font-size:12px}
      .visual-index{left:0;bottom:2px;font-size:12px}
      .section{padding:56px 0}
      .section-head{display:block;margin-bottom:23px}
      .section-head p{margin-top:12px}
      .path-main{padding:25px;min-height:245px}
      .path-main h3{font-size:25px;margin-top:36px}
      .feature-side{grid-template-columns:1fr}
      .feature-card{min-height:270px;padding:25px}
      .feature-card h3{font-size:25px;margin-top:42px}
      .news-item{grid-template-columns:1fr auto;gap:8px;padding:16px 0}
      .news-meta{grid-column:1 / -1;display:flex;gap:10px}
      .news-meta b{margin:0}
      .news-item h3{font-size:16px}
      .news-item p{font-size:12px}
      .topic-nav a{flex:1 1 calc(50% - 10px);font-size:14px;padding:11px 12px}
      .download-copy h2{font-size:31px}
      .device-stage{height:245px}
      .cta{padding:56px 0}
      .cta-box{display:block;padding:28px}
      .cta-box h2{font-size:25px}
      .cta-box .btn{width:100%;margin-top:22px}
      .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
      .footer-brand{grid-column:1 / -1}
      .copyright{display:block;line-height:2}
      .copyright span{display:block}
    }

/* roulang page: category2 */
:root{
      --ink:#171816;--night:#20221f;--night-soft:#292c27;--paper:#f5f1e9;
      --paper-strong:#fffdf8;--orange:#d98736;--orange-deep:#b96322;
      --mint:#8bb7a6;--muted:#777a71;--line:#dcd7cb;--white:#fffdf8;
      --shadow:0 18px 48px rgba(29,29,23,.12);--soft-shadow:0 8px 24px rgba(29,29,23,.08);
      --radius:18px;--container:1200px
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{margin:0;font-family:"Noto Sans SC","PingFang SC","Microsoft YaHei",sans-serif;color:var(--ink);background:var(--paper);line-height:1.7;font-size:16px}
    a{color:inherit;text-decoration:none}
    img{display:block;max-width:100%}
    button{font:inherit;cursor:pointer}
    .container{width:min(calc(100% - 48px),var(--container));margin:0 auto}
    .site-header{height:82px;background:rgba(32,34,31,.98);color:var(--white);display:flex;align-items:center;position:sticky;top:0;z-index:20;border-bottom:1px solid rgba(255,255,255,.08)}
    .header-inner{display:flex;align-items:center;justify-content:space-between;gap:24px}
    .logo{font-weight:800;font-size:21px;letter-spacing:-.04em;white-space:nowrap;display:flex;align-items:center;gap:10px}
    .logo-mark{width:35px;height:35px;border-radius:10px;background:var(--orange);display:grid;place-items:center;color:var(--night);font-weight:900;font-size:18px}
    .main-nav{display:flex;align-items:center;gap:3px}
    .main-nav a{color:#d9dbd3;font-size:14px;padding:9px 11px;border-radius:9px;transition:.25s}
    .main-nav a:hover,.main-nav a.active{color:#fff;background:rgba(217,135,54,.16)}
    .main-nav a.active{box-shadow:inset 0 -2px var(--orange)}
    .header-action{flex:none}
    .btn{display:inline-flex;align-items:center;justify-content:center;gap:9px;min-height:46px;padding:0 20px;border-radius:11px;border:1px solid transparent;font-weight:700;transition:transform .25s,background .25s,box-shadow .25s}
    .btn:hover{transform:translateY(-2px)}
    .btn:focus-visible,.main-nav a:focus-visible,.menu-toggle:focus-visible{outline:3px solid rgba(217,135,54,.45);outline-offset:3px}
    .btn-primary{background:var(--orange);color:var(--night);box-shadow:0 7px 18px rgba(217,135,54,.22)}
    .btn-primary:hover{background:#e49a4e;box-shadow:0 10px 24px rgba(217,135,54,.3)}
    .btn-dark{background:var(--night);color:var(--white)}
    .btn-ghost{border-color:rgba(255,255,255,.3);color:var(--white)}
    .btn-ghost:hover{border-color:var(--orange);color:var(--orange)}
    .menu-toggle{display:none;border:0;background:transparent;color:var(--white);font-size:25px;padding:8px}
    .hero{background:var(--night);color:var(--white);padding:86px 0 78px;position:relative;overflow:hidden}
    .hero:before{content:"";position:absolute;width:560px;height:560px;border:1px solid rgba(217,135,54,.22);border-radius:50%;right:-150px;top:-250px}
    .hero:after{content:"";position:absolute;width:290px;height:290px;border:1px solid rgba(139,183,166,.2);border-radius:50%;right:160px;bottom:-205px}
    .hero-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:76px;align-items:center;position:relative;z-index:1}
    .eyebrow,.section-kicker{font-size:12px;color:var(--orange);font-weight:800;letter-spacing:.14em}
    .hero h1{font-size:clamp(38px,5vw,62px);line-height:1.18;letter-spacing:-.055em;margin:16px 0 20px;max-width:680px}
    .hero h1 em{color:var(--orange);font-style:normal}
    .hero-copy{color:#c6c9c1;max-width:610px;font-size:18px;margin:0 0 30px}
    .hero-buttons{display:flex;gap:13px;flex-wrap:wrap}
    .home-map{min-height:310px;position:relative;padding:30px}
    .map-core{width:190px;height:190px;border-radius:50%;background:var(--orange);color:var(--night);display:flex;flex-direction:column;justify-content:center;align-items:center;margin:auto;box-shadow:0 0 0 18px rgba(217,135,54,.08),0 20px 48px rgba(0,0,0,.25)}
    .map-core b{font-size:38px;line-height:1}
    .map-core span{font-size:13px;font-weight:800;margin-top:10px}
    .map-node{position:absolute;padding:13px 16px;border:1px solid rgba(255,255,255,.2);background:rgba(255,255,255,.07);border-radius:12px;color:#e2e4dd;font-weight:700;font-size:14px}
    .node-one{left:0;top:18px}.node-two{right:0;top:55px}.node-three{left:20px;bottom:30px}.node-four{right:10px;bottom:12px}
    .section{padding:84px 0}
    .section-head{display:flex;align-items:end;justify-content:space-between;gap:22px;margin-bottom:32px}
    .section-head h2{font-size:34px;line-height:1.25;letter-spacing:-.04em;margin:7px 0 0}
    .section-head p{color:var(--muted);max-width:450px;margin:0}
    .path-grid{display:grid;grid-template-columns:1.35fr .8fr .8fr;gap:18px}
    .path-card{background:var(--paper-strong);border:1px solid var(--line);border-radius:var(--radius);padding:28px;min-height:205px;box-shadow:var(--soft-shadow);transition:.25s;display:flex;flex-direction:column}
    .path-card:hover{transform:translateY(-4px);box-shadow:var(--shadow);border-color:var(--orange)}
    .path-card.main-path{background:var(--orange);color:var(--night);min-height:260px}
    .path-no{font-size:13px;font-weight:900;color:var(--orange-deep);letter-spacing:.12em}
    .main-path .path-no{color:var(--night)}
    .path-card h3{font-size:23px;margin:34px 0 8px;line-height:1.35}
    .path-card p{color:var(--muted);font-size:14px;margin:0}
    .main-path p{color:#49321e}
    .path-link{margin-top:auto;color:var(--orange-deep);font-weight:800;padding-top:18px}
    .main-path .path-link{color:var(--night)}
    .entry-section{background:var(--paper-strong)}
    .entry-layout{display:grid;grid-template-columns:.8fr 1.2fr;gap:54px;align-items:stretch}
    .entry-intro{background:var(--night);color:var(--white);border-radius:var(--radius);padding:34px}
    .entry-intro h2{font-size:32px;line-height:1.3;margin:12px 0 15px}
    .entry-intro p{color:#c6c9c1}
    .entry-list{display:grid;grid-template-columns:1fr 1fr;gap:14px}
    .entry-item{border:1px solid var(--line);border-radius:14px;padding:22px;background:var(--paper);transition:.25s}
    .entry-item:hover{border-color:var(--orange);transform:translateY(-3px)}
    .entry-item b{display:block;font-size:18px;margin-bottom:7px}
    .entry-item span{font-size:14px;color:var(--muted)}
    .entry-item strong{display:block;color:var(--orange-deep);font-size:12px;margin-bottom:18px}
    .info-strip{display:grid;grid-template-columns:repeat(3,1fr);gap:1px;background:var(--line);border:1px solid var(--line);margin-top:22px}
    .info-cell{background:var(--paper-strong);padding:25px}
    .info-cell b{display:block;font-size:26px;color:var(--orange-deep);margin-bottom:3px}
    .info-cell span{font-size:14px;color:var(--muted)}
    .download{background:var(--night);color:var(--white);overflow:hidden}
    .download-grid{display:grid;grid-template-columns:1fr .8fr;gap:60px;align-items:center}
    .download h2{font-size:36px;line-height:1.3;margin:10px 0 14px}
    .download p{color:#c6c9c1;max-width:550px}
    .download-note{font-size:13px;color:#aeb3a8;margin-top:16px}
    .qr-panel{background:#f2eee4;color:var(--night);border-radius:18px;padding:28px;text-align:center;justify-self:end;width:270px;box-shadow:var(--shadow)}
    .qr-box{width:150px;height:150px;margin:0 auto 17px;background:repeating-linear-gradient(45deg,#20221f 0 6px,#fffdf8 6px 12px);border:10px solid #fffdf8}
    .qr-panel b{display:block;font-size:17px}.qr-panel span{font-size:13px;color:var(--muted)}
    .faq-section{background:#eee9df}
    .faq-grid{display:grid;grid-template-columns:.75fr 1.25fr;gap:70px}
    .faq-intro p{color:var(--muted);margin-top:14px}
    .faq-list{border-top:1px solid var(--line)}
    details{border-bottom:1px solid var(--line);padding:19px 0}
    summary{cursor:pointer;font-weight:800;list-style:none;display:flex;justify-content:space-between;gap:20px}
    summary::-webkit-details-marker{display:none}
    summary:after{content:"+";color:var(--orange-deep);font-size:23px;line-height:1}
    details[open] summary:after{content:"−"}
    details p{color:var(--muted);font-size:15px;margin:13px 28px 0 0}
    .cta{padding:78px 0}
    .cta-box{border:1px solid var(--line);border-radius:20px;padding:38px 42px;background:var(--paper-strong);display:flex;align-items:center;justify-content:space-between;gap:28px}
    .cta-box h2{font-size:29px;margin:0}.cta-box p{color:var(--muted);margin:7px 0 0}
    .site-footer{background:var(--night);color:var(--white);padding:54px 0 25px}
    .footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:35px;padding-bottom:42px}
    .footer-brand p{color:#aeb3a8;font-size:14px;max-width:285px;margin-top:15px}
    .footer-title{font-size:14px;font-weight:800;color:var(--orange);margin-bottom:13px}
    .footer-links{display:grid;gap:8px}.footer-links a{color:#c6c9c1;font-size:14px;transition:.2s}
    .footer-links a:hover{color:var(--orange)}
    .copyright{border-top:1px solid rgba(255,255,255,.12);padding-top:20px;color:#9da398;font-size:12px;display:flex;justify-content:space-between;gap:15px}
    @media(max-width:1100px){.main-nav a{padding:8px 6px;font-size:13px}.hero-grid{gap:35px}.container{width:min(calc(100% - 36px),var(--container))}}
    @media(max-width:860px){.main-nav{display:none}.menu-toggle{display:block}.header-action{margin-left:auto}.hero-grid,.entry-layout,.download-grid,.faq-grid{grid-template-columns:1fr}.hero-art{min-height:270px}.path-grid{grid-template-columns:1fr 1fr}.main-path{grid-column:span 2}.qr-panel{justify-self:start}.footer-grid{grid-template-columns:1fr 1fr}.section{padding:64px 0}}
    @media(max-width:560px){.site-header{height:72px}.logo{font-size:17px}.logo-mark{width:32px;height:32px}.header-action .btn{min-height:40px;padding:0 12px;font-size:13px}.menu-toggle{order:3}.hero{padding:64px 0}.hero h1{font-size:38px}.hero-copy{font-size:16px}.path-grid,.entry-list,.info-strip{grid-template-columns:1fr}.main-path{grid-column:auto}.section-head{display:block}.section-head p{margin-top:12px}.node-one{left:-6px}.node-two{right:-6px}.node-three{left:0}.node-four{right:0}.home-map{padding:15px;min-height:270px}.map-core{width:155px;height:155px}.map-core b{font-size:31px}.download h2{font-size:30px}.cta-box{display:block;padding:28px}.cta-box .btn{margin-top:22px;width:100%}.footer-grid{grid-template-columns:1fr;gap:25px}.copyright{display:block}.copyright span{display:block;margin-top:5px}}

/* roulang page: category3 */
:root{
      --ink:#171816;
      --night:#20221f;
      --night-soft:#292c27;
      --paper:#f5f1e9;
      --paper-strong:#fffdf8;
      --orange:#d98736;
      --orange-deep:#b96322;
      --mint:#8bb7a6;
      --muted:#777a71;
      --line:#dcd7cb;
      --white:#fffdf8;
      --shadow:0 18px 48px rgba(29,29,23,.12);
      --soft-shadow:0 8px 24px rgba(29,29,23,.08);
      --radius:18px;
      --container:1200px;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{margin:0;font-family:"Noto Sans SC","PingFang SC","Microsoft YaHei",sans-serif;color:var(--ink);background:var(--paper);line-height:1.7;font-size:16px}
    h1,h2,h3,p{margin:0}
    ul{padding:0;margin:0;list-style:none}
    a{color:inherit;text-decoration:none}
    img{display:block;max-width:100%}
    button,input{font:inherit}
    button{cursor:pointer}
    .container{width:min(calc(100% - 48px),var(--container));margin:0 auto}
    .site-header{height:82px;background:rgba(32,34,31,.98);color:var(--white);display:flex;align-items:center;position:sticky;top:0;z-index:20;border-bottom:1px solid rgba(255,255,255,.08)}
    .header-inner{display:flex;align-items:center;justify-content:space-between;gap:26px}
    .logo{font-weight:800;font-size:21px;letter-spacing:-.04em;white-space:nowrap;display:flex;align-items:center;gap:10px}
    .logo-mark{width:35px;height:35px;border-radius:10px;background:var(--orange);display:grid;place-items:center;color:var(--night);font-weight:900;font-size:18px}
    .main-nav{display:flex;align-items:center;gap:3px}
    .main-nav a{color:#d9dbd3;font-size:14px;padding:9px 11px;border-radius:9px;transition:.25s}
    .main-nav a:hover,.main-nav a.active{color:#fff;background:rgba(217,135,54,.16)}
    .main-nav a.active{box-shadow:inset 0 -2px var(--orange)}
    .header-action{flex:none}
    .btn{display:inline-flex;align-items:center;justify-content:center;gap:9px;min-height:46px;padding:0 20px;border-radius:11px;border:1px solid transparent;font-weight:700;transition:transform .25s,background .25s,box-shadow .25s}
    .btn:hover{transform:translateY(-2px)}
    .btn:focus-visible,.main-nav a:focus-visible,.menu-toggle:focus-visible,.faq-question:focus-visible{outline:3px solid rgba(217,135,54,.45);outline-offset:3px}
    .btn-primary{background:var(--orange);color:var(--night);box-shadow:0 7px 18px rgba(217,135,54,.22)}
    .btn-primary:hover{background:#e49a4e;box-shadow:0 10px 24px rgba(217,135,54,.3)}
    .btn-ghost{border-color:rgba(255,255,255,.3);color:var(--white)}
    .btn-ghost:hover{border-color:var(--orange);color:var(--orange)}
    .btn-dark{background:var(--night);color:var(--white)}
    .menu-toggle{display:none;border:0;background:transparent;color:var(--white);font-size:25px;padding:8px}
    .hero{background:var(--night);color:var(--white);position:relative;overflow:hidden;padding:82px 0 74px}
    .hero:before{content:"";position:absolute;width:500px;height:500px;border:1px solid rgba(217,135,54,.22);border-radius:50%;right:-150px;top:-220px}
    .hero:after{content:"";position:absolute;width:280px;height:280px;border:1px solid rgba(139,183,166,.2);border-radius:50%;right:210px;bottom:-190px}
    .hero-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:80px;align-items:center;position:relative;z-index:1}
    .eyebrow,.section-kicker{color:var(--orange);font-weight:800;font-size:13px;letter-spacing:.12em}
    .eyebrow{margin-bottom:17px}
    .hero h1{font-size:clamp(38px,5vw,62px);line-height:1.16;letter-spacing:-.055em;max-width:680px}
    .hero h1 em{color:var(--orange);font-style:normal}
    .hero-copy{color:#c6c9c1;max-width:620px;margin:22px 0 30px;font-size:18px}
    .hero-buttons{display:flex;gap:13px;flex-wrap:wrap}
    .news-orbit{min-height:320px;position:relative;display:grid;place-items:center}
    .orbit-core{width:190px;height:190px;border-radius:50%;background:var(--orange);color:var(--night);display:grid;place-items:center;text-align:center;box-shadow:0 0 0 18px rgba(217,135,54,.09),0 0 0 42px rgba(217,135,54,.05);transform:rotate(-8deg)}
    .orbit-core strong{display:block;font-size:48px;line-height:1}
    .orbit-core span{font-size:13px;font-weight:800}
    .orbit-card{position:absolute;background:#30342e;border:1px solid rgba(255,255,255,.13);padding:14px 16px;border-radius:13px;box-shadow:var(--soft-shadow);font-size:13px;color:#e2e4dc}
    .orbit-card b{display:block;color:var(--orange);font-size:11px;margin-bottom:3px}
    .orbit-one{top:20px;left:8px}.orbit-two{right:0;top:92px}.orbit-three{bottom:15px;left:54px}
    .section{padding:82px 0}
    .section-light{background:var(--paper-strong)}
    .section-head{display:flex;align-items:end;justify-content:space-between;gap:24px;margin-bottom:30px}
    .section-head h2{font-size:clamp(27px,3vw,38px);line-height:1.25;letter-spacing:-.04em;margin-top:7px}
    .section-head p{max-width:480px;color:var(--muted)}
    .feature-layout{display:grid;grid-template-columns:1.15fr .85fr;gap:22px}
    .feature-card{min-height:330px;border-radius:var(--radius);padding:32px;background:var(--night);color:var(--white);position:relative;overflow:hidden;display:flex;flex-direction:column;justify-content:end;transition:.25s}
    .feature-card:before{content:"J9";position:absolute;right:18px;top:-28px;font-size:180px;font-weight:900;color:rgba(217,135,54,.12);line-height:1}
    .feature-card:hover,.news-row:hover,.info-card:hover{transform:translateY(-3px);box-shadow:var(--soft-shadow)}
    .badge{display:inline-flex;width:max-content;padding:5px 10px;border-radius:30px;background:rgba(217,135,54,.16);color:var(--orange-deep);font-size:12px;font-weight:800}
    .feature-card .badge{background:var(--orange);color:var(--night);position:relative}
    .feature-card h3{font-size:29px;line-height:1.35;max-width:580px;margin:18px 0 10px;position:relative}
    .feature-card p{color:#c6c9c1;max-width:570px;position:relative}
    .side-notes{display:grid;gap:14px}
    .info-card{background:#eee9df;border:1px solid var(--line);border-radius:15px;padding:23px;transition:.25s}
    .info-card h3{font-size:20px;line-height:1.4;margin:12px 0 7px}
    .info-card p{font-size:14px;color:var(--muted)}
    .card-link{display:inline-flex;color:var(--orange-deep);font-weight:800;margin-top:16px;font-size:14px}
    .timeline-wrap{display:grid;grid-template-columns:.7fr 1.3fr;gap:70px}
    .timeline-intro{padding-top:10px}
    .timeline-intro h2{font-size:34px;line-height:1.3;margin:10px 0 16px}
    .timeline-intro p{color:var(--muted)}
    .timeline{border-top:1px solid var(--line)}
    .news-row{display:grid;grid-template-columns:105px 1fr auto;gap:20px;align-items:center;padding:20px 0;border-bottom:1px solid var(--line);transition:.25s}
    .news-date{font-size:12px;color:var(--muted)}
    .news-date b{display:block;color:var(--orange-deep);font-size:14px}
    .news-row h3{font-size:18px;line-height:1.4}
    .news-row p{font-size:14px;color:var(--muted);margin-top:4px}
    .row-arrow{font-size:22px;color:var(--orange)}
    .topic-strip{background:#eee9df}
    .topic-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:12px;margin-top:28px}
    .topic-grid a{background:var(--paper-strong);border:1px solid var(--line);border-radius:13px;padding:18px;font-weight:800;transition:.25s}
    .topic-grid a span{display:block;color:var(--muted);font-size:13px;font-weight:400;margin-top:5px}
    .topic-grid a:hover{border-color:var(--orange);color:var(--orange-deep);transform:translateY(-2px)}
    .app-banner{background:var(--night);color:var(--white);border-radius:22px;padding:40px 44px;display:grid;grid-template-columns:1fr .8fr;align-items:center;gap:40px;overflow:hidden;position:relative}
    .app-banner:after{content:"";position:absolute;width:350px;height:350px;border:1px solid rgba(139,183,166,.2);border-radius:50%;right:-100px;top:-140px}
    .app-banner h2{font-size:34px;line-height:1.3;margin:10px 0 12px}
    .app-banner p{color:#c6c9c1;max-width:570px}
    .download-tags{display:flex;flex-wrap:wrap;gap:9px;margin-top:19px}
    .tag{padding:5px 11px;border-radius:30px;background:rgba(255,255,255,.1);color:#d5d8d0;font-size:12px}
    .app-visual{height:190px;display:flex;align-items:center;justify-content:center;position:relative;z-index:1}
    .device{width:112px;height:178px;border:5px solid #787d73;border-radius:20px;background:#f1e8d7;transform:rotate(8deg);box-shadow:18px 16px 0 rgba(217,135,54,.4)}
    .device-screen{height:100%;padding:18px 10px}
    .device-screen i{display:block;height:9px;background:var(--orange);border-radius:4px;margin-bottom:14px}
    .device-screen b{display:block;height:34px;background:var(--night-soft);border-radius:7px;margin-bottom:10px}
    .device-screen span{display:block;height:7px;background:#c4c7bc;border-radius:4px;margin:8px 0}
    .faq-section{background:var(--paper-strong)}
    .faq-grid{display:grid;grid-template-columns:.7fr 1.3fr;gap:70px}
    .faq-intro p{color:var(--muted);margin-top:15px}
    .faq-list{border-top:1px solid var(--line)}
    .faq-item{border-bottom:1px solid var(--line)}
    .faq-question{width:100%;background:none;border:0;padding:20px 0;text-align:left;font-weight:800;display:flex;justify-content:space-between;gap:20px;color:var(--ink)}
    .faq-question span{color:var(--orange);font-size:22px;transition:.25s}
    .faq-answer{display:none;color:var(--muted);font-size:14px;padding:0 35px 20px 0}
    .faq-item.open .faq-answer{display:block}
    .faq-item.open .faq-question span{transform:rotate(45deg)}
    .cta{padding:78px 0}
    .cta-box{border:1px solid var(--line);border-radius:20px;padding:38px 42px;display:flex;justify-content:space-between;align-items:center;gap:28px;background:#eee9df}
    .cta-box h2{font-size:31px;line-height:1.3}
    .cta-box p{color:var(--muted);margin-top:7px}
    .site-footer{background:var(--night);color:var(--white);padding:54px 0 25px}
    .footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:35px;padding-bottom:42px}
    .footer-brand p{color:#aeb3a8;font-size:14px;max-width:285px;margin-top:15px}
    .footer-title{font-size:14px;font-weight:800;color:var(--orange);margin-bottom:13px}
    .footer-links{display:grid;gap:8px}
    .footer-links a{color:#c6c9c1;font-size:14px;transition:.2s}
    .footer-links a:hover{color:var(--orange)}
    .copyright{border-top:1px solid rgba(255,255,255,.12);padding-top:18px;display:flex;justify-content:space-between;gap:20px;color:#969c91;font-size:12px}
    @media(max-width:1100px){
      .main-nav a{padding:8px 7px;font-size:13px}
      .hero-grid,.feature-layout{gap:40px}
      .container{width:min(calc(100% - 36px),var(--container))}
    }
    @media(max-width:900px){
      .site-header{height:72px}
      .menu-toggle{display:block}
      .header-inner{gap:10px}
      .main-nav{display:none;position:absolute;top:72px;left:0;right:0;padding:12px 18px 18px;background:var(--night);border-top:1px solid rgba(255,255,255,.1);flex-direction:column;align-items:stretch}
      .main-nav.show{display:flex}
      .main-nav a{padding:11px 14px}
      .header-action .btn{min-height:42px;padding:0 13px;font-size:13px}
      .hero-grid,.feature-layout,.timeline-wrap,.app-banner,.faq-grid{grid-template-columns:1fr}
      .hero{padding:70px 0}
      .news-orbit{min-height:275px}
      .topic-grid{grid-template-columns:repeat(2,1fr)}
      .app-visual{order:2}
      .footer-grid{grid-template-columns:repeat(2,1fr)}
    }
    @media(max-width:560px){
      .container{width:min(calc(100% - 30px),var(--container))}
      .logo{font-size:16px;gap:7px}
      .logo-mark{width:31px;height:31px;font-size:16px}
      .header-action{display:none}
      .hero h1{font-size:36px}
      .hero-copy{font-size:16px}
      .hero-buttons .btn{width:100%}
      .feature-card{min-height:300px;padding:25px}
      .feature-card h3{font-size:24px}
      .news-row{grid-template-columns:72px 1fr;gap:12px}
      .row-arrow{display:none}
      .topic-grid{grid-template-columns:1fr}
      .app-banner{padding:30px 24px}
      .app-banner h2{font-size:27px}
      .section{padding:58px 0}
      .cta-box{padding:28px 24px;display:block}
      .cta-box .btn{margin-top:20px;width:100%}
      .footer-grid{grid-template-columns:1fr 1fr;gap:25px}
      .footer-brand{grid-column:1/-1}
      .copyright{display:block;line-height:2}
    }

/* roulang page: category4 */
:root{
      --ink:#171816;--night:#20221f;--night-soft:#292c27;--paper:#f5f1e9;
      --paper-strong:#fffdf8;--orange:#d98736;--orange-deep:#b96322;
      --mint:#8bb7a6;--muted:#777a71;--line:#dcd7cb;--white:#fffdf8;
      --shadow:0 18px 48px rgba(29,29,23,.12);--soft-shadow:0 8px 24px rgba(29,29,23,.08);
      --radius:18px;--container:1200px
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{margin:0;font-family:"Noto Sans SC","PingFang SC","Microsoft YaHei",sans-serif;color:var(--ink);background:var(--paper);line-height:1.7;font-size:16px}
    a{color:inherit;text-decoration:none} img{display:block;max-width:100%}
    button,input{font:inherit}button{cursor:pointer}
    .container{width:min(calc(100% - 48px),var(--container));margin:0 auto}
    .site-header{height:82px;background:rgba(32,34,31,.98);color:var(--white);display:flex;align-items:center;position:sticky;top:0;z-index:20;border-bottom:1px solid rgba(255,255,255,.08)}
    .header-inner{display:flex;align-items:center;justify-content:space-between;gap:26px}
    .logo{font-weight:800;font-size:21px;letter-spacing:-.04em;white-space:nowrap;display:flex;align-items:center;gap:10px}
    .logo-mark{width:35px;height:35px;border-radius:10px;background:var(--orange);display:grid;place-items:center;color:var(--night);font-weight:900;font-size:18px}
    .main-nav{display:flex;align-items:center;gap:3px}
    .main-nav a{color:#d9dbd3;font-size:14px;padding:9px 11px;border-radius:9px;transition:.25s}
    .main-nav a:hover,.main-nav a.active{color:#fff;background:rgba(217,135,54,.16)}
    .main-nav a.active{box-shadow:inset 0 -2px var(--orange)}
    .header-action{flex:none}.btn{display:inline-flex;align-items:center;justify-content:center;gap:9px;min-height:46px;padding:0 20px;border-radius:11px;border:1px solid transparent;font-weight:700;transition:transform .25s,background .25s,box-shadow .25s}
    .btn:hover{transform:translateY(-2px)}.btn:focus-visible,.main-nav a:focus-visible,.menu-toggle:focus-visible,.faq-question:focus-visible{outline:3px solid rgba(217,135,54,.45);outline-offset:3px}
    .btn-primary{background:var(--orange);color:var(--night);box-shadow:0 7px 18px rgba(217,135,54,.22)}.btn-primary:hover{background:#e49a4e;box-shadow:0 10px 24px rgba(217,135,54,.3)}
    .btn-ghost{border-color:rgba(255,255,255,.3);color:var(--white)}.btn-ghost:hover{border-color:var(--orange);color:var(--orange)}
    .btn-dark{background:var(--night);color:var(--white)}.menu-toggle{display:none;border:0;background:transparent;color:var(--white);font-size:25px;padding:8px}
    .hero{background:var(--night);color:var(--white);padding:78px 0 84px;position:relative;overflow:hidden}
    .hero:before{content:"";position:absolute;width:560px;height:560px;border:1px solid rgba(217,135,54,.22);border-radius:50%;right:-170px;top:-240px}
    .hero-grid{display:grid;grid-template-columns:1fr 1fr;gap:80px;align-items:center;position:relative;z-index:1}
    .eyebrow,.section-kicker{color:var(--orange);font-weight:800;font-size:13px;letter-spacing:.12em;margin-bottom:16px}
    h1,h2,h3,p{margin-top:0}.hero h1{font-size:clamp(38px,5vw,62px);line-height:1.15;letter-spacing:-.055em;margin-bottom:20px}.hero h1 em{color:var(--orange);font-style:normal}
    .hero-copy{color:#c6c9c1;max-width:570px;font-size:18px;margin-bottom:30px}.hero-buttons{display:flex;gap:13px;flex-wrap:wrap}
    .download-visual{min-height:370px;position:relative;display:grid;place-items:center}
    .device{width:220px;height:350px;background:#121412;border:8px solid #3c4039;border-radius:32px;box-shadow:0 28px 55px rgba(0,0,0,.35);padding:10px;transform:rotate(6deg);position:relative}
    .device:before{content:"";display:block;width:68px;height:6px;border-radius:5px;background:#343830;margin:1px auto 12px}
    .screen{height:302px;border-radius:20px;background:linear-gradient(145deg,#d98736 0 31%,#292c27 31% 100%);padding:22px 13px;overflow:hidden}
    .screen-brand{font-weight:900;font-size:25px;color:#fffdf8}.screen-line{height:8px;background:rgba(255,255,255,.65);border-radius:5px;margin-top:30px;width:75%}.screen-card{height:76px;background:rgba(255,253,248,.88);border-radius:12px;margin-top:20px}
    .visual-note{position:absolute;right:0;bottom:38px;background:var(--mint);color:var(--night);padding:14px 17px;border-radius:13px;font-weight:800;transform:rotate(-5deg)}
    .section{padding:82px 0}.section-head{display:flex;align-items:end;justify-content:space-between;gap:20px;margin-bottom:32px}.section-head h2{font-size:34px;line-height:1.25;letter-spacing:-.04em;margin:0}.section-head p{max-width:470px;color:var(--muted);margin:0}
    .steps{display:grid;grid-template-columns:repeat(4,1fr);gap:15px}.step{background:var(--paper-strong);border:1px solid var(--line);border-radius:var(--radius);padding:26px 22px;min-height:190px;transition:.25s}.step:hover{transform:translateY(-4px);box-shadow:var(--soft-shadow);border-color:var(--orange)}
    .step-no{color:var(--orange-deep);font-weight:900;font-size:14px;letter-spacing:.1em}.step h3{font-size:20px;margin:25px 0 8px}.step p{color:var(--muted);font-size:14px;margin:0}
    .route-section{background:var(--paper-strong)}.route-layout{display:grid;grid-template-columns:.8fr 1.2fr;gap:60px;align-items:start}.route-intro{background:var(--night);color:var(--white);border-radius:var(--radius);padding:34px;min-height:280px}.route-intro h3{font-size:28px;line-height:1.35;margin:55px 0 12px}.route-intro p{color:#c6c9c1;font-size:14px}
    .route-list{border-top:1px solid var(--line)}.route-item{display:flex;gap:20px;padding:22px 0;border-bottom:1px solid var(--line);align-items:flex-start}.route-icon{width:42px;height:42px;border-radius:12px;background:#eee9df;color:var(--orange-deep);display:grid;place-items:center;font-weight:900;flex:none}.route-item h3{font-size:19px;margin:0 0 4px}.route-item p{color:var(--muted);font-size:14px;margin:0}.arrow{margin-left:auto;color:var(--orange);font-size:22px}
    .app-panel{background:var(--night);color:var(--white);border-radius:22px;padding:44px;display:grid;grid-template-columns:1.2fr .8fr;gap:40px;align-items:center}.app-panel h2{font-size:34px;line-height:1.25;margin:0 0 13px}.app-panel p{color:#c6c9c1;max-width:570px}.download-tags{display:flex;flex-wrap:wrap;gap:9px;margin-top:20px}.tag{display:inline-flex;padding:5px 10px;border-radius:30px;background:rgba(255,255,255,.1);color:#d5d8d0;font-size:12px}.qr-box{width:155px;height:155px;background:#fffdf8;border-radius:14px;padding:12px;margin:auto;display:grid;place-items:center;color:var(--night);text-align:center;font-size:12px;font-weight:800}.qr-pattern{width:105px;height:105px;background:repeating-linear-gradient(45deg,#20221f 0 6px,#fffdf8 6px 12px);border:8px solid #fffdf8;outline:2px solid #20221f}
    .notice{padding:18px 20px;border-left:4px solid var(--orange);background:#eee9df;color:var(--muted);font-size:14px;margin-top:20px}
    .faq-section{background:#eee9df}.faq-grid{display:grid;grid-template-columns:.7fr 1.3fr;gap:70px}.faq-intro p{color:var(--muted);margin-top:15px}.faq-list{border-top:1px solid var(--line)}.faq-item{border-bottom:1px solid var(--line)}.faq-question{width:100%;border:0;background:none;text-align:left;padding:20px 0;font-weight:800;display:flex;justify-content:space-between;align-items:center;color:var(--ink)}.faq-question span:last-child{color:var(--orange);font-size:24px}.faq-answer{display:none;color:var(--muted);font-size:14px;padding:0 35px 20px 0}.faq-item.open .faq-answer{display:block}.faq-item.open .faq-question span:last-child{transform:rotate(45deg)}
    .cta{padding:78px 0}.cta-box{border:1px solid var(--line);border-radius:20px;padding:38px 42px;display:flex;justify-content:space-between;align-items:center;gap:28px;background:var(--paper-strong)}.cta-box h2{margin:0;font-size:30px}.cta-box p{color:var(--muted);margin:7px 0 0}
    .site-footer{background:var(--night);color:var(--white);padding:54px 0 25px}.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:35px;padding-bottom:42px}.footer-brand p{color:#aeb3a8;font-size:14px;max-width:285px;margin-top:15px}.footer-title{font-size:14px;font-weight:800;color:var(--orange);margin-bottom:13px}.footer-links{display:grid;gap:8px}.footer-links a{color:#c6c9c1;font-size:14px;transition:.2s}.footer-links a:hover{color:var(--orange)}.copyright{border-top:1px solid rgba(255,255,255,.12);padding-top:20px;color:#92988e;font-size:12px;display:flex;justify-content:space-between;gap:20px}
    @media(max-width:1100px){.main-nav a{padding:8px 7px;font-size:13px}.hero-grid{gap:40px}.steps{grid-template-columns:repeat(2,1fr)}}
    @media(max-width:820px){.main-nav{display:none;position:absolute;left:24px;right:24px;top:74px;background:var(--night-soft);padding:12px;border-radius:14px;box-shadow:var(--shadow);flex-direction:column;align-items:stretch}.main-nav.open{display:flex}.main-nav a{padding:12px 14px}.menu-toggle{display:block}.header-inner{gap:10px}.header-action .btn{padding:0 13px}.hero-grid,.route-layout,.app-panel{grid-template-columns:1fr}.hero{padding:65px 0}.download-visual{min-height:350px}.faq-grid{grid-template-columns:1fr;gap:30px}.footer-grid{grid-template-columns:1fr 1fr}}
    @media(max-width:560px){.container{width:min(calc(100% - 32px),var(--container))}.site-header{height:74px}.logo{font-size:17px}.logo-mark{width:31px;height:31px}.header-action .btn{min-height:40px;font-size:13px;padding:0 11px}.hero h1{font-size:39px}.hero-copy{font-size:16px}.section{padding:58px 0}.section-head{display:block}.section-head h2{font-size:28px;margin-bottom:10px}.steps{grid-template-columns:1fr}.app-panel{padding:28px 22px}.app-panel h2{font-size:28px}.qr-box{margin:15px auto 0}.cta-box{display:block;padding:28px 24px}.cta-box .btn{margin-top:22px;width:100%}.footer-grid{grid-template-columns:1fr;gap:27px}.copyright{display:block}.copyright span{display:block;margin-top:6px}}

/* roulang page: category5 */
:root{
      --ink:#171816;
      --night:#20221f;
      --night-soft:#292c27;
      --paper:#f5f1e9;
      --paper-strong:#fffdf8;
      --orange:#d98736;
      --orange-deep:#b96322;
      --mint:#8bb7a6;
      --muted:#777a71;
      --line:#dcd7cb;
      --white:#fffdf8;
      --shadow:0 18px 48px rgba(29,29,23,.12);
      --soft-shadow:0 8px 24px rgba(29,29,23,.08);
      --radius:18px;
      --container:1200px;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{margin:0;font-family:"Noto Sans SC","PingFang SC","Microsoft YaHei",sans-serif;color:var(--ink);background:var(--paper);line-height:1.7;font-size:16px}
    a{color:inherit;text-decoration:none}
    button,input{font:inherit}
    button{cursor:pointer}
    img{display:block;max-width:100%}
    .container{width:min(calc(100% - 48px),var(--container));margin:0 auto}
    .site-header{height:82px;background:rgba(32,34,31,.97);color:var(--white);display:flex;align-items:center;position:sticky;top:0;z-index:20;border-bottom:1px solid rgba(255,255,255,.08)}
    .header-inner{display:flex;align-items:center;justify-content:space-between;gap:26px}
    .logo{font-weight:800;font-size:21px;letter-spacing:-.04em;white-space:nowrap;display:flex;align-items:center;gap:10px}
    .logo-mark{width:35px;height:35px;border-radius:10px;background:var(--orange);display:grid;place-items:center;color:var(--night);font-weight:900;font-size:18px}
    .main-nav{display:flex;align-items:center;gap:3px}
    .main-nav a{color:#d9dbd3;font-size:14px;padding:9px 11px;border-radius:9px;transition:.25s}
    .main-nav a:hover,.main-nav a.active{color:#fff;background:rgba(217,135,54,.16)}
    .main-nav a.active{box-shadow:inset 0 -2px var(--orange)}
    .header-action{flex:none}
    .btn{display:inline-flex;align-items:center;justify-content:center;gap:9px;min-height:46px;padding:0 20px;border-radius:11px;border:1px solid transparent;font-weight:700;transition:transform .25s,background .25s,box-shadow .25s}
    .btn:hover{transform:translateY(-2px)}
    .btn:focus-visible,.main-nav a:focus-visible,.menu-toggle:focus-visible,.faq-question:focus-visible{outline:3px solid rgba(217,135,54,.45);outline-offset:3px}
    .btn-primary{background:var(--orange);color:var(--night);box-shadow:0 7px 18px rgba(217,135,54,.22)}
    .btn-primary:hover{background:#e49a4e;box-shadow:0 10px 24px rgba(217,135,54,.3)}
    .btn-ghost{border-color:rgba(255,255,255,.3);color:var(--white)}
    .btn-ghost:hover{border-color:var(--orange);color:var(--orange)}
    .btn-dark{background:var(--night);color:var(--white)}
    .menu-toggle{display:none;border:0;background:transparent;color:var(--white);font-size:25px;padding:8px}
    .hero{background:var(--night);color:var(--white);position:relative;overflow:hidden;padding:82px 0 76px}
    .hero:before{content:"";position:absolute;width:540px;height:540px;border:1px solid rgba(217,135,54,.22);border-radius:50%;right:-140px;top:-240px}
    .hero:after{content:"";position:absolute;width:290px;height:290px;border:1px solid rgba(139,183,166,.2);border-radius:50%;right:120px;bottom:-190px}
    .hero-grid{display:grid;grid-template-columns:1.05fr .95fr;align-items:center;gap:70px;position:relative;z-index:1}
    .eyebrow{color:var(--orange);font-weight:800;font-size:13px;letter-spacing:.12em;margin-bottom:16px}
    .hero h1{font-size:clamp(38px,5vw,62px);line-height:1.16;letter-spacing:-.055em;max-width:700px;margin:0}
    .hero h1 em{color:var(--orange);font-style:normal}
    .hero-copy{color:#c6c9c1;max-width:620px;margin:22px 0 30px;font-size:18px}
    .hero-buttons{display:flex;gap:13px;flex-wrap:wrap}
    .hero-visual{min-height:330px;position:relative;display:flex;align-items:center;justify-content:center}
    .orbit{width:295px;height:295px;border:1px solid rgba(217,135,54,.45);border-radius:50%;position:relative;transform:rotate(-18deg)}
    .orbit:before,.orbit:after{content:"";position:absolute;border:1px solid rgba(139,183,166,.4);border-radius:50%}
    .orbit:before{inset:28px 55px;transform:rotate(52deg)}
    .orbit:after{inset:68px 22px;transform:rotate(-38deg)}
    .visual-core{position:absolute;width:142px;height:142px;border-radius:28px;background:var(--orange);color:var(--night);display:grid;place-items:center;text-align:center;box-shadow:0 16px 35px rgba(0,0,0,.22);transform:rotate(8deg)}
    .visual-core strong{font-size:47px;line-height:1;font-weight:900}
    .visual-core span{font-size:12px;font-weight:800;letter-spacing:.08em}
    .visual-note{position:absolute;right:3%;top:23px;background:var(--mint);color:var(--night);padding:12px 15px;border-radius:12px;font-weight:800;transform:rotate(8deg)}
    .visual-label{position:absolute;left:2%;bottom:25px;border:1px solid rgba(255,255,255,.2);padding:11px 15px;border-radius:12px;color:#dfe2da;font-size:13px;background:rgba(255,255,255,.04)}
    .section{padding:86px 0}
    .section-light{background:var(--paper-strong)}
    .section-head{display:flex;align-items:end;justify-content:space-between;gap:20px;margin-bottom:32px}
    .section-kicker{font-size:12px;color:var(--orange-deep);font-weight:800;letter-spacing:.14em;margin-bottom:6px}
    .section-head h2{margin:0;font-size:34px;letter-spacing:-.045em;line-height:1.25}
    .section-head p{max-width:470px;color:var(--muted);margin:0}
    .topic-strip{display:grid;grid-template-columns:1.35fr .85fr .85fr;gap:16px}
    .topic-card{min-height:210px;border-radius:var(--radius);padding:26px;position:relative;overflow:hidden;border:1px solid var(--line);background:var(--paper-strong);transition:.25s}
    .topic-card:hover{transform:translateY(-4px);box-shadow:var(--soft-shadow);border-color:var(--orange)}
    .topic-card.primary{background:var(--orange);border-color:var(--orange);min-height:260px}
    .topic-card.dark{background:var(--night);color:var(--white);border-color:var(--night)}
    .topic-number{font-size:13px;font-weight:900;letter-spacing:.12em;opacity:.7}
    .topic-card h3{font-size:24px;line-height:1.35;margin:38px 0 9px}
    .topic-card p{font-size:14px;color:var(--muted);max-width:280px}
    .topic-card.primary p{color:#4f351e}
    .topic-card.dark p{color:#bdc2b8}
    .topic-arrow{position:absolute;right:24px;bottom:22px;color:var(--orange);font-size:24px}
    .topic-card.primary .topic-arrow{color:var(--night)}
    .timeline-section{background:#eee9df}
    .timeline-layout{display:grid;grid-template-columns:.72fr 1.28fr;gap:75px;align-items:start}
    .timeline-intro{position:sticky;top:112px}
    .timeline-intro h2{font-size:35px;line-height:1.25;letter-spacing:-.04em;margin:0 0 15px}
    .timeline-intro p{color:var(--muted);margin:0 0 24px}
    .timeline{border-left:2px solid var(--orange);padding-left:28px}
    .timeline-item{position:relative;padding:0 0 34px}
    .timeline-item:last-child{padding-bottom:0}
    .timeline-item:before{content:"";position:absolute;width:11px;height:11px;background:var(--orange);border:3px solid #eee9df;border-radius:50%;left:-35px;top:7px;box-shadow:0 0 0 1px var(--orange)}
    .timeline-date{font-size:12px;color:var(--orange-deep);font-weight:800;letter-spacing:.08em}
    .timeline-item h3{font-size:21px;margin:6px 0 7px;line-height:1.4}
    .timeline-item p{font-size:14px;color:var(--muted);margin:0}
    .timeline-link{display:inline-flex;color:var(--orange-deep);font-weight:800;font-size:14px;margin-top:12px}
    .feature-section{padding-top:88px}
    .feature-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:18px}
    .feature-main{background:var(--night);color:var(--white);border-radius:var(--radius);padding:36px;min-height:350px;position:relative;overflow:hidden}
    .feature-main:after{content:"J9";position:absolute;right:-12px;bottom:-45px;font-size:190px;line-height:1;font-weight:900;color:rgba(217,135,54,.12)}
    .feature-main h3{font-size:31px;line-height:1.3;max-width:520px;margin:52px 0 14px;position:relative;z-index:1}
    .feature-main p{color:#c0c5bb;max-width:510px;position:relative;z-index:1}
    .feature-side{display:grid;gap:18px}
    .info-card{background:var(--paper-strong);border:1px solid var(--line);border-radius:var(--radius);padding:25px;transition:.25s}
    .info-card:hover{box-shadow:var(--soft-shadow);transform:translateY(-3px)}
    .info-card h3{font-size:20px;margin:20px 0 7px}
    .info-card p{font-size:14px;color:var(--muted);margin:0}
    .badge{display:inline-flex;align-items:center;min-height:25px;padding:3px 10px;border-radius:30px;background:#e7f0eb;color:#427563;font-size:12px;font-weight:800}
    .badge.orange{background:#f8dfc5;color:var(--orange-deep)}
    .download-section{background:var(--night);color:var(--white);padding:78px 0}
    .download-layout{display:grid;grid-template-columns:1fr .9fr;gap:70px;align-items:center}
    .download-section h2{font-size:35px;line-height:1.25;margin:0 0 14px;letter-spacing:-.04em}
    .download-section p{color:#c5c9c0;max-width:570px}
    .download-tags{display:flex;flex-wrap:wrap;gap:9px;margin:21px 0 26px}
    .tag{display:inline-flex;padding:5px 10px;border-radius:30px;background:rgba(255,255,255,.1);color:#d5d8d0;font-size:12px}
    .download-panel{background:var(--night-soft);border:1px solid rgba(255,255,255,.1);border-radius:var(--radius);padding:28px;display:flex;gap:22px;align-items:center}
    .qr-box{width:112px;height:112px;flex:none;border:8px solid var(--white);background:repeating-linear-gradient(45deg,#20221f 0 5px,#fffdf8 5px 10px);display:grid;place-items:center;color:var(--night);font-weight:900;font-size:12px;text-align:center}
    .download-panel h3{font-size:19px;margin:0 0 7px}
    .download-panel p{font-size:13px;margin:0;color:#aeb3a8}
    .faq-section{background:var(--paper)}
    .faq-grid{display:grid;grid-template-columns:.7fr 1.3fr;gap:70px}
    .faq-intro h2{font-size:34px;line-height:1.25;margin:0}
    .faq-intro p{color:var(--muted);margin-top:15px}
    .faq-list{border-top:1px solid var(--line)}
    .faq-item{border-bottom:1px solid var(--line)}
    .faq-question{width:100%;border:0;background:transparent;padding:21px 5px;text-align:left;display:flex;justify-content:space-between;gap:20px;font-weight:800;color:var(--ink)}
    .faq-question span:last-child{color:var(--orange);font-size:23px;line-height:1;transition:.25s}
    .faq-answer{display:none;color:var(--muted);font-size:14px;padding:0 40px 21px 5px}
    .faq-item.open .faq-answer{display:block}
    .faq-item.open .faq-question span:last-child{transform:rotate(45deg)}
    .cta{padding:76px 0}
    .cta-box{border:1px solid var(--line);border-radius:20px;padding:40px;display:flex;justify-content:space-between;align-items:center;gap:28px;background:var(--paper-strong)}
    .cta-box h2{margin:0;font-size:30px;line-height:1.3}
    .cta-box p{color:var(--muted);margin:7px 0 0}
    .site-footer{background:var(--night);color:var(--white);padding:54px 0 25px}
    .footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:35px;padding-bottom:42px}
    .footer-brand p{color:#aeb3a8;font-size:14px;max-width:285px;margin-top:15px}
    .footer-title{font-size:14px;font-weight:800;color:var(--orange);margin-bottom:13px}
    .footer-links{display:grid;gap:8px}
    .footer-links a{color:#c6c9c1;font-size:14px;transition:.2s}
    .footer-links a:hover{color:var(--orange)}
    .copyright{border-top:1px solid rgba(255,255,255,.1);padding-top:19px;color:#91988d;font-size:12px;display:flex;justify-content:space-between;gap:18px;flex-wrap:wrap}
    @media (max-width:1024px){
      .main-nav a{padding:8px 7px;font-size:13px}
      .header-action{display:none}
      .hero-grid,.download-layout{gap:42px}
      .topic-strip{grid-template-columns:1fr 1fr}
      .topic-card.primary{grid-column:span 2}
    }
    @media (max-width:768px){
      .container{width:min(calc(100% - 34px),var(--container))}
      .site-header{height:70px}
      .menu-toggle{display:block}
      .header-inner{gap:10px}
      .header-action{display:block}
      .header-action .btn{min-height:40px;padding:0 13px;font-size:13px}
      .main-nav{display:none;position:absolute;left:17px;right:17px;top:70px;background:var(--night);padding:12px;border:1px solid rgba(255,255,255,.1);border-radius:0 0 15px 15px;box-shadow:var(--shadow);flex-direction:column;align-items:stretch}
      .main-nav.show{display:flex}
      .main-nav a{padding:12px 14px}
      .hero{padding:65px 0 58px}
      .hero-grid,.timeline-layout,.feature-grid,.download-layout,.faq-grid{grid-template-columns:1fr}
      .hero-visual{min-height:270px}
      .timeline-intro{position:static}
      .section{padding:60px 0}
      .section-head{display:block}
      .section-head p{margin-top:12px}
      .topic-strip{grid-template-columns:1fr}
      .topic-card.primary{grid-column:auto}
      .feature-main{min-height:300px}
      .download-panel{margin-top:8px}
      .footer-grid{grid-template-columns:1fr 1fr;gap:30px}
    }
    @media (max-width:520px){
      .logo{font-size:17px}
      .logo-mark{width:31px;height:31px;font-size:16px}
      .hero h1{font-size:37px}
      .hero-copy{font-size:16px}
      .hero-buttons .btn{width:100%}
      .orbit{width:240px;height:240px}
      .visual-core{width:120px;height:120px}
      .feature-main h3{font-size:25px;margin-top:38px}
      .download-panel{align-items:flex-start;flex-direction:column}
      .qr-box{width:105px;height:105px}
      .cta-box{padding:28px;display:block}
      .cta-box .btn{width:100%;margin-top:22px}
      .footer-grid{grid-template-columns:1fr}
      .copyright{display:block}
      .copyright span{display:block;margin-bottom:6px}
    }

/* roulang page: category6 */
:root{
      --ink:#171816;
      --night:#20221f;
      --night-soft:#292c27;
      --paper:#f5f1e9;
      --paper-strong:#fffdf8;
      --orange:#d98736;
      --orange-deep:#b96322;
      --mint:#8bb7a6;
      --muted:#777a71;
      --line:#dcd7cb;
      --white:#fffdf8;
      --shadow:0 18px 48px rgba(29,29,23,.12);
      --soft-shadow:0 8px 24px rgba(29,29,23,.08);
      --radius:18px;
      --container:1200px;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{margin:0;font-family:"Noto Sans SC","PingFang SC","Microsoft YaHei",sans-serif;color:var(--ink);background:var(--paper);line-height:1.7;font-size:16px}
    a{color:inherit;text-decoration:none}
    img{display:block;max-width:100%}
    button,input{font:inherit}
    button{cursor:pointer}
    h1,h2,h3,p{margin-top:0}
    .container{width:min(calc(100% - 48px),var(--container));margin:0 auto}
    .site-header{height:82px;background:rgba(32,34,31,.97);color:var(--white);display:flex;align-items:center;position:sticky;top:0;z-index:20;border-bottom:1px solid rgba(255,255,255,.08)}
    .header-inner{display:flex;align-items:center;justify-content:space-between;gap:26px}
    .logo{font-weight:800;font-size:21px;letter-spacing:-.04em;white-space:nowrap;display:flex;align-items:center;gap:10px}
    .logo-mark{width:35px;height:35px;border-radius:10px;background:var(--orange);display:grid;place-items:center;color:var(--night);font-weight:900;font-size:18px}
    .main-nav{display:flex;align-items:center;gap:3px}
    .main-nav a{color:#d9dbd3;font-size:14px;padding:9px 11px;border-radius:9px;transition:.25s}
    .main-nav a:hover,.main-nav a.active{color:#fff;background:rgba(217,135,54,.16)}
    .main-nav a.active{box-shadow:inset 0 -2px var(--orange)}
    .header-action{flex:none}
    .btn{display:inline-flex;align-items:center;justify-content:center;gap:9px;min-height:46px;padding:0 20px;border-radius:11px;border:1px solid transparent;font-weight:700;transition:transform .25s,background .25s,box-shadow .25s}
    .btn:hover{transform:translateY(-2px)}
    .btn:focus-visible,.main-nav a:focus-visible,.menu-toggle:focus-visible,.toc-link:focus-visible{outline:3px solid rgba(217,135,54,.45);outline-offset:3px}
    .btn-primary{background:var(--orange);color:var(--night);box-shadow:0 7px 18px rgba(217,135,54,.22)}
    .btn-primary:hover{background:#e49a4e;box-shadow:0 10px 24px rgba(217,135,54,.3)}
    .btn-ghost{border-color:rgba(255,255,255,.3);color:var(--white)}
    .btn-ghost:hover{border-color:var(--orange);color:var(--orange)}
    .btn-dark{background:var(--night);color:var(--white)}
    .menu-toggle{display:none;border:0;background:transparent;color:var(--white);font-size:25px;padding:8px}
    .page-hero{background:var(--night);color:var(--white);padding:76px 0 82px;position:relative;overflow:hidden}
    .page-hero:before{content:"";position:absolute;width:470px;height:470px;border:1px solid rgba(217,135,54,.22);border-radius:50%;right:-120px;top:-210px}
    .page-hero:after{content:"";position:absolute;width:210px;height:210px;border:1px solid rgba(139,183,166,.22);border-radius:50%;left:43%;bottom:-150px}
    .hero-layout{position:relative;z-index:1;display:grid;grid-template-columns:1fr .8fr;gap:80px;align-items:end}
    .eyebrow,.section-kicker{color:var(--orange);font-size:13px;font-weight:800;letter-spacing:.12em;margin-bottom:15px}
    .page-hero h1{font-size:clamp(40px,5vw,64px);line-height:1.15;letter-spacing:-.055em;max-width:720px;margin-bottom:22px}
    .page-hero h1 em{font-style:normal;color:var(--orange)}
    .hero-copy{max-width:650px;color:#c6c9c1;font-size:18px;margin-bottom:29px}
    .hero-buttons{display:flex;gap:13px;flex-wrap:wrap}
    .hero-panel{border-left:3px solid var(--orange);padding:22px 0 22px 26px}
    .hero-panel strong{display:block;color:var(--orange);font-size:34px;line-height:1;margin-bottom:12px}
    .hero-panel p{color:#c6c9c1;margin:0;max-width:320px}
    .section{padding:86px 0}
    .section-soft{background:var(--paper-strong)}
    .section-muted{background:#eee9df}
    .section-head{display:flex;align-items:end;justify-content:space-between;gap:25px;margin-bottom:32px}
    .section-head h2{font-size:34px;line-height:1.25;letter-spacing:-.04em;margin:0}
    .section-head p{max-width:490px;color:var(--muted);margin:0}
    .guide-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:22px}
    .guide-main,.guide-side,.directory-card,.help-card{border:1px solid var(--line);border-radius:var(--radius);background:var(--paper-strong);transition:.25s}
    .guide-main{padding:38px;min-height:300px;position:relative;overflow:hidden}
    .guide-main:after{content:"J9";position:absolute;right:20px;bottom:-35px;font-size:170px;line-height:1;font-weight:900;color:rgba(217,135,54,.11)}
    .guide-main h3{font-size:28px;max-width:550px;position:relative;z-index:1}
    .guide-main p{max-width:560px;color:var(--muted);position:relative;z-index:1}
    .guide-side{padding:28px;background:var(--night);color:var(--white);display:flex;flex-direction:column;justify-content:space-between}
    .guide-side .number{font-size:13px;color:var(--orange);font-weight:800;letter-spacing:.1em}
    .guide-side h3{font-size:24px;margin:45px 0 10px}
    .guide-side p{color:#c6c9c1;margin:0}
    .guide-main:hover,.guide-side:hover,.directory-card:hover,.help-card:hover{transform:translateY(-3px);box-shadow:var(--soft-shadow)}
    .pill-row{display:flex;flex-wrap:wrap;gap:9px;margin-top:24px}
    .pill{display:inline-flex;padding:6px 12px;border-radius:30px;background:#e9e2d5;color:var(--orange-deep);font-size:13px;font-weight:700}
    .directory-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
    .directory-card{padding:25px;min-height:190px;display:flex;flex-direction:column}
    .directory-card .index{font-size:13px;color:var(--orange-deep);font-weight:800}
    .directory-card h3{font-size:21px;margin:20px 0 8px}
    .directory-card p{font-size:14px;color:var(--muted);margin-bottom:18px}
    .card-link{margin-top:auto;color:var(--orange-deep);font-weight:800;font-size:14px}
    .card-link span{margin-left:6px;transition:.2s}
    .card-link:hover span{margin-left:11px}
    .path-wrap{display:grid;grid-template-columns:.8fr 1.2fr;gap:55px;align-items:start}
    .path-intro p{color:var(--muted);max-width:400px}
    .path-list{border-top:1px solid var(--line)}
    .path-item{display:grid;grid-template-columns:58px 1fr auto;gap:18px;align-items:center;padding:20px 0;border-bottom:1px solid var(--line)}
    .path-item .step{width:38px;height:38px;border-radius:50%;display:grid;place-items:center;background:var(--orange);color:var(--night);font-weight:900}
    .path-item h3{font-size:18px;margin:0 0 3px}
    .path-item p{font-size:14px;color:var(--muted);margin:0}
    .path-item a{color:var(--orange-deep);font-weight:800;font-size:14px}
    .app-strip{background:var(--night);color:var(--white);border-radius:20px;padding:42px 48px;display:grid;grid-template-columns:1fr .8fr;gap:35px;align-items:center}
    .app-strip h2{font-size:31px;margin-bottom:12px}
    .app-strip p{color:#c6c9c1;max-width:600px}
    .app-badges{display:flex;gap:10px;flex-wrap:wrap;margin-top:22px}
    .app-badge{border:1px solid rgba(255,255,255,.2);border-radius:10px;padding:10px 14px;color:#d9dbd3;font-size:13px}
    .app-visual{display:flex;justify-content:center;gap:14px;align-items:end}
    .screen{width:130px;height:190px;border:6px solid #454940;border-radius:22px;background:#f2e7d5;padding:16px;box-shadow:var(--shadow);transform:rotate(7deg)}
    .screen.back{height:155px;transform:rotate(-8deg);background:var(--mint);border-color:#3e5149}
    .screen-line{height:8px;background:var(--orange);border-radius:5px;margin-bottom:13px}
    .screen-line.short{width:60%;background:#7d8b7f}
    .faq-grid{display:grid;grid-template-columns:.75fr 1.25fr;gap:70px}
    .faq-intro p{color:var(--muted);margin-top:15px}
    .faq-list{border-top:1px solid var(--line)}
    details{border-bottom:1px solid var(--line);padding:19px 0}
    summary{cursor:pointer;font-weight:800;list-style:none;display:flex;justify-content:space-between;gap:20px}
    summary::-webkit-details-marker{display:none}
    summary:after{content:"＋";color:var(--orange-deep);font-size:21px;line-height:1}
    details[open] summary:after{content:"−"}
    details p{color:var(--muted);font-size:15px;margin:13px 30px 3px 0}
    .cta{padding:78px 0}
    .cta-box{border:1px solid var(--line);border-radius:20px;padding:39px 42px;display:flex;justify-content:space-between;align-items:center;gap:28px;background:var(--paper-strong)}
    .cta-box h2{margin:0;font-size:30px}
    .cta-box p{color:var(--muted);margin:7px 0 0}
    .site-footer{background:var(--night);color:var(--white);padding:54px 0 25px}
    .footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:35px;padding-bottom:42px}
    .footer-brand p{color:#aeb3a8;font-size:14px;max-width:285px;margin-top:15px}
    .footer-title{font-size:14px;font-weight:800;color:var(--orange);margin-bottom:13px}
    .footer-links{display:grid;gap:8px}
    .footer-links a{color:#c6c9c1;font-size:14px;transition:.2s}
    .footer-links a:hover{color:var(--orange)}
    .copyright{border-top:1px solid rgba(255,255,255,.12);padding-top:20px;color:#92988d;font-size:12px;display:flex;justify-content:space-between;gap:18px;flex-wrap:wrap;}
    .copyright span:last-child{color:#73796f}
    .site-footer .logo{color:var(--white)}
    @media (max-width:1200px){
      .container{width:min(calc(100% - 40px),var(--container))}
      .main-nav a{padding-left:8px;padding-right:8px}
      .hero-layout{gap:50px}
    }
    @media (max-width:900px){
      .site-header{height:74px}
      .main-nav{display:none;position:absolute;left:20px;right:20px;top:68px;padding:12px;background:var(--night-soft);border:1px solid rgba(255,255,255,.12);border-radius:14px;box-shadow:var(--shadow);flex-direction:column;align-items:stretch}
      .main-nav.open{display:flex}
      .main-nav a{padding:12px 14px}
      .menu-toggle{display:block}
      .header-inner{gap:10px}
      .header-action .btn{min-height:42px;padding:0 14px;font-size:14px}
      .hero-layout,.path-wrap,.app-strip,.faq-grid{grid-template-columns:1fr;gap:34px}
      .page-hero{padding:60px 0 68px}
      .hero-panel{max-width:500px}
      .section{padding:64px 0}
      .directory-grid{grid-template-columns:repeat(2,1fr)}
      .footer-grid{grid-template-columns:repeat(2,1fr)}
    }
    @media (max-width:640px){
      .container{width:min(calc(100% - 32px),var(--container))}
      .logo{font-size:17px}
      .logo-mark{width:32px;height:32px}
      .header-action{display:none}
      .page-hero h1{font-size:39px}
      .hero-copy{font-size:16px}
      .section-head{display:block;margin-bottom:24px}
      .section-head h2{font-size:28px;margin-bottom:10px}
      .guide-grid,.directory-grid{grid-template-columns:1fr}
      .guide-main{padding:28px;min-height:270px}
      .guide-main h3{font-size:24px}
      .path-item{grid-template-columns:43px 1fr}
      .path-item a{grid-column:2}
      .app-strip{padding:30px 24px}
      .app-strip h2{font-size:26px}
      .app-visual{margin-top:12px}
      .screen{width:112px;height:170px}
      .screen.back{height:140px}
      .cta{padding:55px 0}
      .cta-box{display:block;padding:30px 24px}
      .cta-box h2{font-size:25px}
      .cta-box .btn{margin-top:22px;width:100%}
      .footer-grid{grid-template-columns:1fr;gap:28px}
      .copyright{display:block}
      .copyright span{display:block;margin-bottom:6px}
    }

/* 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}