/* roulang page: index */
:root{
  --ink:#272522;
  --ink-soft:#625e57;
  --muted:#8d887f;
  --paper:#f7f4ee;
  --surface:#fffdf9;
  --surface-2:#eeeae1;
  --line:#dfd9ce;
  --charcoal:#292725;
  --charcoal-2:#38332f;
  --teal:#5c8d83;
  --teal-light:#e3efeb;
  --amber:#d49a43;
  --amber-dark:#b77c2c;
  --white:#fff;
  --radius-sm:10px;
  --radius-md:16px;
  --radius-lg:24px;
  --shadow:0 12px 32px rgba(46,39,30,.08);
  --shadow-hover:0 18px 38px rgba(46,39,30,.14);
  --container:1240px;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  background:var(--paper);
  color:var(--ink);
  font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
  font-size:16px;
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
}
a{color:inherit;text-decoration:none}
button,input,textarea{font:inherit}
button{cursor:pointer}
img{display:block;max-width:100%}
.container{width:min(var(--container),calc(100% - 48px));margin:0 auto}
.site-header{
  height:78px;
  background:rgba(255,253,249,.94);
  border-bottom:1px solid var(--line);
  position:sticky;top:0;z-index:20;
  backdrop-filter:blur(12px);
}
.header-inner{height:100%;display:flex;align-items:center;justify-content:space-between;gap:28px}
.logo{display:flex;align-items:center;gap:11px;font-weight:800;letter-spacing:-.04em;white-space:nowrap}
.logo-mark{width:34px;height:34px;border-radius:11px;background:var(--charcoal);color:var(--amber);display:grid;place-items:center;font-size:18px}
.logo-text{font-size:17px}
.main-nav{display:flex;align-items:center;gap:27px;margin-left:auto}
.main-nav a{font-size:14px;color:var(--ink-soft);position:relative;padding:25px 0;transition:color .2s ease}
.main-nav a:after{content:"";position:absolute;left:0;right:100%;bottom:17px;height:2px;background:var(--amber);transition:right .2s ease}
.main-nav a:hover,.main-nav a.active{color:var(--ink);font-weight:700}
.main-nav a:hover:after,.main-nav a.active:after{right:0}
.header-cta,.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border:1px solid transparent;border-radius:9px;font-weight:700;transition:transform .2s ease,background .2s ease,box-shadow .2s ease,border-color .2s ease}
.header-cta{padding:9px 17px;background:var(--amber);color:#2d251b;font-size:14px}
.header-cta:hover,.btn-primary:hover{background:var(--amber-dark);transform:translateY(-2px);box-shadow:0 8px 18px rgba(183,124,44,.22)}
.menu-toggle{display:none;background:none;border:0;color:var(--ink);font-size:25px}
.hero{padding:86px 0 78px;background:var(--paper);overflow:hidden}
.hero-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:76px;align-items:center}
.eyebrow{display:inline-flex;align-items:center;gap:8px;color:var(--teal);font-size:13px;font-weight:800;letter-spacing:.08em;margin-bottom:18px}
.eyebrow:before{content:"";width:22px;height:2px;background:var(--teal)}
.hero h1{font-size:clamp(38px,5vw,66px);line-height:1.16;letter-spacing:-.065em;max-width:700px;margin-bottom:24px}
.hero-copy{font-size:18px;color:var(--ink-soft);max-width:625px;line-height:1.9}
.actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:32px}
.btn{padding:12px 20px;font-size:15px}
.btn-primary{background:var(--amber);color:#302518}
.btn-outline{border-color:#bdb6a9;color:var(--ink);background:transparent}
.btn-outline:hover{border-color:var(--teal);background:var(--teal-light);transform:translateY(-2px)}
.hero-panel{position:relative;min-height:390px;padding:30px;border-radius:var(--radius-lg);background:var(--charcoal);color:var(--white);box-shadow:var(--shadow-hover);overflow:hidden}
.hero-panel:before{content:"";position:absolute;width:250px;height:250px;border:1px solid rgba(212,154,67,.35);border-radius:50%;right:-68px;top:-68px}
.panel-top{display:flex;justify-content:space-between;align-items:center;color:#d7d0c5;font-size:13px;position:relative}
.status{display:inline-flex;align-items:center;gap:7px;color:#a9d2c5}
.status i{width:8px;height:8px;border-radius:50%;background:#75b49f;box-shadow:0 0 0 5px rgba(117,180,159,.12)}
.panel-title{font-size:30px;line-height:1.3;margin-top:61px;max-width:330px;letter-spacing:-.04em}
.panel-note{color:#bdb6ab;font-size:14px;margin-top:14px;max-width:340px}
.panel-links{display:flex;gap:9px;flex-wrap:wrap;margin-top:35px}
.panel-links span{padding:7px 11px;border:1px solid #5d5750;border-radius:7px;color:#e9dfd1;font-size:13px}
.panel-corner{position:absolute;right:30px;bottom:28px;color:var(--amber);font-size:54px;font-weight:800;line-height:1}
.section{padding:78px 0}
.section-head{display:flex;justify-content:space-between;align-items:end;gap:30px;margin-bottom:30px}
.section-head h2{font-size:32px;line-height:1.25;letter-spacing:-.045em}
.section-head p{color:var(--ink-soft);max-width:540px}
.section-kicker{font-size:13px;color:var(--teal);font-weight:800;margin-bottom:7px}
.quick{padding:22px 0 12px}
.quick-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:12px}
.quick-item{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-md);padding:21px 22px;display:flex;align-items:center;gap:15px;transition:.2s ease}
.quick-item:hover{border-color:var(--amber);box-shadow:var(--shadow);transform:translateY(-3px)}
.quick-icon{width:40px;height:40px;border-radius:12px;background:var(--teal-light);color:var(--teal);display:grid;place-items:center;font-weight:800;flex:0 0 auto}
.quick-item strong{display:block;font-size:15px}
.quick-item small{display:block;color:var(--muted);font-size:12px;line-height:1.5}
.arrow{margin-left:auto;color:var(--amber-dark);font-size:20px}
.news-section{background:var(--surface-2)}
.news-layout{display:grid;grid-template-columns:.95fr 1.05fr;gap:24px}
.feature-news,.news-list{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-md)}
.feature-news{padding:30px;min-height:286px;display:flex;flex-direction:column;justify-content:end}
.feature-news .tag{margin-bottom:auto}
.tag{display:inline-flex;width:max-content;padding:4px 9px;border-radius:5px;background:var(--teal-light);color:#47786e;font-size:12px;font-weight:700}
.feature-news h3{font-size:25px;line-height:1.4;margin:28px 0 10px}
.feature-news p,.news-item p{color:var(--ink-soft);font-size:14px}
.news-list{padding:7px 24px}
.news-item{display:grid;grid-template-columns:88px 1fr auto;gap:16px;align-items:center;padding:18px 0;border-bottom:1px solid var(--line)}
.news-item:last-child{border-bottom:0}
.news-date{font-size:13px;color:var(--muted)}
.news-item h3{font-size:16px;line-height:1.4;margin-bottom:4px}
.news-item .read{color:var(--amber-dark);font-size:13px;white-space:nowrap}
.empty-state{padding:45px 22px;color:var(--ink-soft);text-align:center}
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:0;border-top:1px solid var(--line)}
.step{padding:28px 24px 10px;border-right:1px solid var(--line);position:relative}
.step:last-child{border-right:0}
.step-num{font-size:13px;color:var(--amber-dark);font-weight:800}
.step h3{font-size:19px;margin:12px 0 7px}
.step p{font-size:14px;color:var(--ink-soft)}
.step-status{display:inline-block;color:var(--teal);font-size:12px;margin-top:13px}
.download-section{background:#eae2d5}
.download-box{display:grid;grid-template-columns:1fr 1fr;gap:45px;align-items:center}
.device-art{min-height:340px;border-radius:var(--radius-lg);background:#d8c9b6;display:grid;place-items:center;position:relative;overflow:hidden}
.device{width:178px;height:310px;border:8px solid var(--charcoal);border-radius:29px;background:var(--surface);box-shadow:12px 15px 0 rgba(39,37,34,.13);padding:18px 13px;position:relative}
.device:before{content:"";display:block;width:56px;height:6px;background:#d8d1c7;border-radius:10px;margin:0 auto 25px}
.device-screen{height:176px;background:var(--teal-light);border-radius:13px;padding:13px}
.device-screen b{font-size:11px;display:block;margin-bottom:17px}
.device-line{height:8px;background:#a9cbc2;border-radius:4px;margin:9px 0}
.device-line.short{width:62%}
.device-dot{width:42px;height:42px;border-radius:12px;background:var(--amber);margin-top:17px}
.download-copy h2{font-size:35px;line-height:1.3;margin-bottom:13px}
.download-copy p{color:var(--ink-soft)}
.app-meta{display:flex;gap:24px;margin:23px 0;color:var(--ink-soft);font-size:13px}
.app-meta strong{display:block;color:var(--ink);font-size:15px}
.download-row{display:flex;align-items:center;gap:20px;flex-wrap:wrap}
.qr{width:76px;height:76px;background:repeating-linear-gradient(45deg,#292725 0 3px,#fffdf9 3px 6px);border:7px solid #fffdf9;box-shadow:0 0 0 1px var(--line)}
.note-link{font-size:13px;color:var(--teal);font-weight:700;margin-top:16px;display:inline-block}
.guide-grid{display:grid;grid-template-columns:1fr 1fr;gap:18px}
.guide-card{display:flex;gap:19px;padding:25px;background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-md)}
.guide-card b{width:38px;height:38px;border-radius:50%;background:var(--charcoal);color:var(--amber);display:grid;place-items:center;flex:0 0 auto}
.guide-card h3{font-size:18px;margin-bottom:5px}
.guide-card p{color:var(--ink-soft);font-size:14px}
.trouble-section{background:var(--charcoal);color:var(--white)}
.trouble-section .section-kicker{color:#9bc8bc}
.trouble-section .section-head p{color:#c9c0b5}
.trouble-grid{display:grid;grid-template-columns:1.2fr .8fr;gap:22px}
.trouble-list{border-top:1px solid #5b554e}
.trouble-item{display:flex;justify-content:space-between;gap:20px;padding:18px 0;border-bottom:1px solid #5b554e}
.trouble-item h3{font-size:17px}
.trouble-item p{color:#bdb5ab;font-size:14px;margin-top:3px}
.trouble-item span{color:var(--amber);white-space:nowrap}
.trouble-note{padding:28px;background:#3a3531;border-radius:var(--radius-md);border:1px solid #5a5249}
.trouble-note h3{font-size:21px;margin-bottom:10px}
.trouble-note p{color:#cec6bc;font-size:14px}
.notice-section{padding-top:62px}
.notice-bar{border-left:4px solid var(--amber);background:var(--surface);border-top:1px solid var(--line);border-right:1px solid var(--line);border-bottom:1px solid var(--line);border-radius:0 var(--radius-sm) var(--radius-sm) 0;padding:17px 22px;display:flex;gap:22px;align-items:center}
.notice-bar+.notice-bar{margin-top:10px}
.notice-date{font-size:13px;color:var(--muted);white-space:nowrap}
.notice-type{font-size:12px;color:var(--teal);font-weight:800;white-space:nowrap}
.notice-bar strong{font-size:15px}
.features{display:grid;grid-template-columns:1.1fr .9fr;gap:18px}
.feature-main{background:var(--charcoal);color:var(--white);border-radius:var(--radius-md);padding:35px;min-height:245px}
.feature-main h3{font-size:28px;line-height:1.35;margin:45px 0 9px}
.feature-main p{color:#c9c0b5;max-width:460px;font-size:14px}
.feature-side{display:grid;grid-template-columns:1fr 1fr;gap:12px}
.feature-tile{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-md);padding:22px}
.feature-tile span{font-size:25px;color:var(--amber-dark)}
.feature-tile h3{font-size:16px;margin:12px 0 4px}
.feature-tile p{font-size:13px;color:var(--ink-soft)}
.safety{background:var(--teal-light)}
.safety-box{display:grid;grid-template-columns:1fr 1.5fr;gap:30px;align-items:center;padding:34px;background:#d5e8e2;border:1px solid #bdd9d1;border-radius:var(--radius-md)}
.safety h2{font-size:29px;line-height:1.35}
.safety p{color:#41675f;font-size:14px}
.safety-points{display:grid;grid-template-columns:repeat(2,1fr);gap:13px}
.safety-points div{background:rgba(255,255,255,.58);padding:15px;border-radius:9px;font-size:14px;color:#41675f}
.safety-points b{display:block;color:var(--ink);margin-bottom:3px}
.activity-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:15px}
.activity{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-md);padding:23px}
.activity-top{display:flex;justify-content:space-between;color:var(--muted);font-size:13px}
.activity .state{color:var(--teal);font-weight:700}
.activity h3{font-size:18px;margin:25px 0 7px}
.activity p{font-size:14px;color:var(--ink-soft)}
.faq-layout{display:grid;grid-template-columns:.8fr 1.2fr;gap:65px}
.faq-layout h2{font-size:34px;line-height:1.3}
.faq-layout>div>p{color:var(--ink-soft);margin-top:13px}
.faq-item{border-top:1px solid var(--line)}
.faq-q{min-height:62px;width:100%;background:none;border:0;display:flex;justify-content:space-between;align-items:center;text-align:left;color:var(--ink);font-weight:700;padding:10px 0}
.faq-q span{font-size:23px;color:var(--amber-dark);transition:transform .2s}
.faq-a{display:none;padding:0 38px 18px 0;color:var(--ink-soft);font-size:14px}
.faq-item.open .faq-a{display:block}.faq-item.open .faq-q span{transform:rotate(45deg)}
.feedback{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-md);padding:32px;display:grid;grid-template-columns:.8fr 1.2fr;gap:45px}
.feedback h2{font-size:29px;line-height:1.35}
.feedback p{color:var(--ink-soft);font-size:14px;margin-top:10px}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:13px}
.field{display:flex;flex-direction:column;gap:6px}.field.full{grid-column:1/-1}
.field label{font-size:13px;font-weight:700}
.field input,.field textarea{border:1px solid var(--line);background:#fffdfa;border-radius:8px;padding:11px 13px;outline:0;color:var(--ink)}
.field textarea{resize:vertical;min-height:92px}
.field input:focus,.field textarea:focus{border-color:var(--teal);box-shadow:0 0 0 3px rgba(92,141,131,.14)}
.form-foot{display:flex;align-items:center;gap:15px;margin-top:15px;flex-wrap:wrap}
.form-tip{font-size:12px;color:var(--muted)}
.form-message{font-size:13px;color:var(--teal);display:none}
.final-cta{padding:55px 0 82px}
.cta-band{background:var(--charcoal);color:var(--white);border-radius:var(--radius-lg);padding:42px 48px;display:flex;align-items:center;justify-content:space-between;gap:25px}
.cta-band h2{font-size:30px;line-height:1.35}.cta-band p{color:#c6beb4;font-size:14px;margin-top:6px}
.site-footer{background:var(--charcoal);color:#e9e1d5;padding:55px 0 22px;border-top:1px solid #48423c}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:35px;padding-bottom:42px}
.footer-brand p,.footer-col p{color:#aaa197;font-size:13px;margin-top:12px}
.footer-title{font-weight:800;margin-bottom:12px}
.footer-col a{display:block;color:#bcb3a8;font-size:13px;margin:7px 0;transition:color .2s}
.footer-col a:hover{color:var(--amber)}
.footer-bottom{border-top:1px solid #48423c;padding-top:18px;display:flex;justify-content:space-between;gap:15px;color:#91887e;font-size:12px}
@media(max-width:1024px){
  .hero-grid{gap:35px}.main-nav{gap:16px}.main-nav a{font-size:13px}
  .quick-grid{grid-template-columns:repeat(2,1fr)}.download-box{gap:25px}
  .footer-grid{grid-template-columns:repeat(2,1fr)}
}
@media(max-width:768px){
  .container{width:min(100% - 32px,var(--container))}
  .site-header{height:68px}.menu-toggle{display:block}.header-cta{display:none}
  .main-nav{display:none;position:absolute;left:0;right:0;top:68px;background:var(--surface);border-bottom:1px solid var(--line);padding:8px 16px;flex-direction:column;align-items:stretch;gap:0;box-shadow:var(--shadow)}
  .main-nav.open{display:flex}.main-nav a{padding:12px 4px;border-bottom:1px solid var(--line)}.main-nav a:after{bottom:0}
  .hero{padding:56px 0}.hero-grid,.download-box,.trouble-grid,.features,.safety-box,.feedback,.faq-layout{grid-template-columns:1fr}
  .hero h1{font-size:42px}.hero-panel{min-height:320px}.section{padding:58px 0}
  .section-head{display:block}.section-head p{margin-top:10px}.news-layout{grid-template-columns:1fr}
  .steps{grid-template-columns:1fr 1fr}.step:nth-child(2){border-right:0}.step:nth-child(-n+2){border-bottom:1px solid var(--line)}
  .download-copy h2{font-size:30px}.device-art{min-height:300px}
  .faq-layout{gap:25px}.feedback{padding:24px}.cta-band{display:block;padding:32px 25px}.cta-band .btn{margin-top:22px}
}
@media(max-width:520px){
  .logo-text{font-size:14px}.hero h1{font-size:34px}.hero-copy{font-size:16px}
  .quick-grid,.guide-grid,.activity-grid,.safety-points,.feature-side{grid-template-columns:1fr}
  .section-head h2,.faq-layout h2{font-size:27px}.news-item{grid-template-columns:70px 1fr}.news-item .read{display:none}
  .steps{grid-template-columns:1fr}.step{border-right:0;border-bottom:1px solid var(--line)!important;padding:20px 0}
  .app-meta{gap:14px}.form-grid{grid-template-columns:1fr}.field.full{grid-column:auto}
  .footer-grid{grid-template-columns:1fr;gap:24px}.footer-bottom{display:block}.footer-bottom span{display:block;margin-top:5px}
}

/* roulang page: article */
:root{
      --ink:#272522;
      --ink-soft:#625e57;
      --muted:#8d887f;
      --paper:#f7f4ee;
      --surface:#fffdf9;
      --surface-2:#eeeae1;
      --line:#dfd9ce;
      --charcoal:#292725;
      --charcoal-2:#38332f;
      --teal:#5c8d83;
      --teal-light:#e3efeb;
      --amber:#d49a43;
      --amber-dark:#b77c2c;
      --white:#fff;
      --danger:#a85e4e;
      --radius-sm:10px;
      --radius-md:16px;
      --radius-lg:24px;
      --shadow:0 12px 32px rgba(46,39,30,.08);
      --shadow-hover:0 18px 38px rgba(46,39,30,.14);
      --container:1240px;
    }
    *,*::before,*::after{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{
      margin:0;
      background:var(--paper);
      color:var(--ink);
      font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
      font-size:16px;
      line-height:1.8;
      -webkit-font-smoothing:antialiased;
    }
    a{color:inherit;text-decoration:none}
    button,input,textarea{font:inherit}
    button{cursor:pointer}
    img{display:block;max-width:100%}
    .container{width:min(var(--container),calc(100% - 48px));margin:0 auto}
    .site-header{
      height:78px;background:rgba(255,253,249,.95);
      border-bottom:1px solid var(--line);position:sticky;top:0;z-index:20;
      backdrop-filter:blur(12px)
    }
    .header-inner{height:100%;display:flex;align-items:center;gap:28px}
    .logo{display:flex;align-items:center;gap:11px;font-weight:800;letter-spacing:-.04em;white-space:nowrap}
    .logo-mark{width:34px;height:34px;border-radius:11px;background:var(--charcoal);color:var(--amber);display:grid;place-items:center;font-size:18px}
    .logo-text{font-size:17px}
    .main-nav{display:flex;align-items:center;gap:27px;margin-left:auto}
    .main-nav a{font-size:14px;color:var(--ink-soft);position:relative;padding:25px 0;transition:color .2s ease}
    .main-nav a::after{content:"";position:absolute;left:0;right:100%;bottom:17px;height:2px;background:var(--amber);transition:right .2s ease}
    .main-nav a:hover,.main-nav a.active{color:var(--ink);font-weight:700}
    .main-nav a:hover::after,.main-nav a.active::after{right:0}
    .header-cta,.btn{
      display:inline-flex;align-items:center;justify-content:center;gap:8px;
      border:1px solid transparent;border-radius:9px;font-weight:700;
      transition:transform .2s ease,background .2s ease,box-shadow .2s ease,border-color .2s ease
    }
    .header-cta{padding:9px 17px;background:var(--amber);color:#2d251b;font-size:14px}
    .header-cta:hover,.btn-primary:hover{background:var(--amber-dark);transform:translateY(-2px);box-shadow:0 8px 18px rgba(183,124,44,.22)}
    .menu-toggle{display:none;background:none;border:0;color:var(--ink);font-size:25px}
    .article-hero{padding:72px 0 54px;background:var(--surface-2);border-bottom:1px solid var(--line)}
    .breadcrumbs{display:flex;gap:9px;align-items:center;color:var(--muted);font-size:13px;margin-bottom:28px}
    .breadcrumbs a:hover{color:var(--amber-dark)}
    .breadcrumbs .current{color:var(--ink-soft);max-width:420px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
    .article-layout{display:grid;grid-template-columns:minmax(0,1fr) 300px;gap:68px;align-items:start}
    .article-title{font-size:clamp(34px,5vw,58px);line-height:1.22;letter-spacing:-.06em;max-width:900px;margin:0 0 22px}
    .article-intro{font-size:18px;color:var(--ink-soft);max-width:790px;margin:0}
    .article-meta{display:flex;flex-wrap:wrap;gap:10px 22px;color:var(--muted);font-size:13px;margin-top:28px}
    .article-meta span{display:inline-flex;align-items:center;gap:7px}
    .article-meta span::before{content:"";width:5px;height:5px;border-radius:50%;background:var(--amber)}
    .article-aside{background:var(--charcoal);color:var(--white);border-radius:var(--radius-lg);padding:25px;box-shadow:var(--shadow)}
    .aside-label{color:#9bc8bc;font-size:12px;font-weight:800;letter-spacing:.08em}
    .aside-title{font-size:22px;line-height:1.4;margin:15px 0}
    .aside-copy{color:#d0c8bd;font-size:14px;margin:0 0 20px}
    .aside-line{height:1px;background:rgba(255,255,255,.15);margin:20px 0}
    .article-main{padding:66px 0 80px}
    .reading-grid{display:grid;grid-template-columns:minmax(0,820px) 1fr;gap:68px;align-items:start}
    .article-content{font-size:17px;line-height:1.95;min-width:0}
    .article-content h2{font-size:30px;line-height:1.35;letter-spacing:-.04em;margin:42px 0 15px}
    .article-content h3{font-size:22px;line-height:1.45;margin:30px 0 10px}
    .article-content p{margin:0 0 20px}
    .article-content ul,.article-content ol{padding-left:25px;margin:0 0 24px}
    .article-content li{margin:7px 0}
    .article-content blockquote{margin:28px 0;padding:20px 24px;background:var(--teal-light);border-left:4px solid var(--teal);border-radius:0 var(--radius-sm) var(--radius-sm) 0;color:#3f625b}
    .article-content img{border-radius:var(--radius-md);margin:28px 0}
    .article-content table{width:100%;border-collapse:collapse;margin:28px 0;font-size:15px;background:var(--surface)}
    .article-content th,.article-content td{border:1px solid var(--line);padding:11px 14px;text-align:left}
    .article-content th{background:var(--surface-2)}
    .article-content code{background:var(--surface-2);padding:2px 6px;border-radius:5px;color:var(--amber-dark)}
    .article-notice{margin-top:34px;padding:20px 24px;background:#f2eadc;border:1px solid #e5d5bb;border-radius:var(--radius-md);color:#66533b}
    .article-notice strong{display:block;color:#4b3b28;margin-bottom:5px}
    .side-card{position:sticky;top:106px;background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-md);padding:23px}
    .side-card h2{font-size:18px;margin:0 0 16px}
    .side-list{list-style:none;padding:0;margin:0}
    .side-list li{border-top:1px solid var(--line);padding:12px 0}
    .side-list a{font-size:14px;color:var(--ink-soft);display:flex;justify-content:space-between;gap:10px}
    .side-list a:hover{color:var(--amber-dark)}
    .related-section{padding:68px 0;background:var(--surface-2)}
    .section-head{display:flex;justify-content:space-between;align-items:end;gap:30px;margin-bottom:28px}
    .section-kicker{font-size:13px;color:var(--teal);font-weight:800;margin-bottom:7px}
    .section-head h2{font-size:31px;line-height:1.3;letter-spacing:-.045em;margin:0}
    .section-head p{color:var(--ink-soft);max-width:530px;margin:0}
    .related-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
    .related-card{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-md);padding:24px;transition:.2s ease}
    .related-card:hover{border-color:var(--amber);box-shadow:var(--shadow);transform:translateY(-3px)}
    .tag{display:inline-flex;width:max-content;padding:4px 9px;border-radius:5px;background:var(--teal-light);color:#47786e;font-size:12px;font-weight:700}
    .related-card h3{font-size:19px;line-height:1.45;margin:19px 0 9px}
    .related-card p{font-size:14px;color:var(--ink-soft);margin:0 0 15px}
    .card-link{color:var(--amber-dark);font-size:13px;font-weight:700}
    .article-cta{padding:68px 0}
    .cta-box{background:var(--charcoal);border-radius:var(--radius-lg);padding:43px 48px;color:var(--white);display:flex;justify-content:space-between;align-items:center;gap:30px}
    .cta-box h2{font-size:30px;line-height:1.35;margin:0 0 8px}
    .cta-box p{color:#d0c8bd;margin:0}
    .btn{padding:12px 20px;font-size:15px}
    .btn-primary{background:var(--amber);color:#302518}
    .btn-outline{border-color:#bdb6a9;color:var(--ink);background:transparent}
    .btn-outline:hover{border-color:var(--teal);background:var(--teal-light);transform:translateY(-2px)}
    .site-footer{background:var(--charcoal);color:var(--white);padding:55px 0 22px}
    .footer-grid{display:grid;grid-template-columns:1.45fr 1fr 1fr 1.25fr;gap:38px;padding-bottom:42px}
    .footer-brand p,.footer-col p{color:#c9c0b5;font-size:13px;line-height:1.8;margin:16px 0 0}
    .footer-title{font-size:14px;font-weight:800;color:var(--amber);margin-bottom:13px}
    .footer-col a{display:block;color:#d4cdc3;font-size:13px;margin:8px 0;transition:color .2s}
    .footer-col a:hover{color:var(--amber)}
    .footer-bottom{border-top:1px solid rgba(255,255,255,.13);padding-top:18px;display:flex;justify-content:space-between;gap:18px;color:#aaa198;font-size:12px}
    :focus-visible{outline:3px solid rgba(212,154,67,.45);outline-offset:3px}
    .empty-state{padding:45px 28px;background:var(--surface);border:1px dashed var(--line);border-radius:var(--radius-md);color:var(--ink-soft);text-align:center}
    @media(max-width:1024px){
      .main-nav{gap:16px}
      .article-layout,.reading-grid{gap:38px}
      .article-layout{grid-template-columns:minmax(0,1fr) 260px}
      .footer-grid{grid-template-columns:repeat(2,1fr)}
    }
    @media(max-width:768px){
      .container{width:min(var(--container),calc(100% - 32px))}
      .site-header{height:68px}
      .header-inner{gap:12px}
      .logo-text{font-size:14px}
      .logo-mark{width:31px;height:31px}
      .menu-toggle{display:block;margin-left:auto}
      .main-nav{display:none;position:absolute;left:0;right:0;top:68px;background:var(--surface);border-bottom:1px solid var(--line);padding:10px 22px;flex-direction:column;align-items:stretch;gap:0;box-shadow:var(--shadow)}
      .main-nav.open{display:flex}
      .main-nav a{padding:12px 0}
      .main-nav a::after{bottom:5px}
      .header-cta{display:none}
      .article-hero{padding:48px 0 42px}
      .article-layout,.reading-grid{grid-template-columns:1fr}
      .article-aside{max-width:440px}
      .side-card{position:static}
      .article-main{padding:46px 0 60px}
      .related-grid{grid-template-columns:1fr}
      .cta-box{padding:32px 25px;display:block}
      .cta-box .btn{margin-top:22px}
      .section-head{display:block}
      .section-head p{margin-top:10px}
      .footer-bottom{display:block}
      .footer-bottom span{display:block;margin-top:7px}
    }
    @media(max-width:480px){
      .article-title{font-size:34px}
      .article-intro{font-size:16px}
      .breadcrumbs .current{max-width:180px}
      .article-content{font-size:16px}
      .article-content h2{font-size:26px}
      .footer-grid{grid-template-columns:1fr;gap:25px}
      .logo-text{max-width:195px;white-space:normal;line-height:1.25}
    }

/* roulang page: category1 */
:root{
      --ink:#272522;--ink-soft:#625e57;--muted:#8d887f;--paper:#f7f4ee;
      --surface:#fffdf9;--surface-2:#eeeae1;--line:#dfd9ce;--charcoal:#292725;
      --charcoal-2:#38332f;--teal:#5c8d83;--teal-light:#e3efeb;--amber:#d49a43;
      --amber-dark:#b77c2c;--white:#fff;--radius-sm:10px;--radius-md:16px;
      --radius-lg:24px;--shadow:0 12px 32px rgba(46,39,30,.08);
      --shadow-hover:0 18px 38px rgba(46,39,30,.14);--container:1240px
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{margin:0;background:var(--paper);color:var(--ink);font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif;font-size:16px;line-height:1.8;-webkit-font-smoothing:antialiased}
    a{color:inherit;text-decoration:none}a:hover{color:var(--amber-dark)}
    button,input{font:inherit}button{cursor:pointer}img{display:block;max-width:100%}
    .container{width:min(var(--container),calc(100% - 48px));margin:0 auto}
    .site-header{height:78px;background:rgba(255,253,249,.95);border-bottom:1px solid var(--line);position:sticky;top:0;z-index:20;backdrop-filter:blur(12px)}
    .header-inner{height:100%;display:flex;align-items:center;gap:28px}
    .logo{display:flex;align-items:center;gap:11px;font-weight:800;letter-spacing:-.04em;white-space:nowrap}
    .logo-mark{width:34px;height:34px;border-radius:11px;background:var(--charcoal);color:var(--amber);display:grid;place-items:center;font-size:18px}
    .logo-text{font-size:17px}
    .main-nav{display:flex;align-items:center;gap:27px;margin-left:auto}
    .main-nav a{font-size:14px;color:var(--ink-soft);position:relative;padding:25px 0;transition:color .2s ease}
    .main-nav a:after{content:"";position:absolute;left:0;right:100%;bottom:17px;height:2px;background:var(--amber);transition:right .2s ease}
    .main-nav a:hover,.main-nav a.active{color:var(--ink);font-weight:700}
    .main-nav a:hover:after,.main-nav a.active:after{right:0}
    .header-cta,.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border:1px solid transparent;border-radius:9px;font-weight:700;transition:transform .2s ease,background .2s ease,box-shadow .2s ease,border-color .2s ease}
    .header-cta{padding:9px 17px;background:var(--amber);color:#2d251b;font-size:14px}
    .header-cta:hover,.btn-primary:hover{background:var(--amber-dark);color:#fff;transform:translateY(-2px);box-shadow:0 8px 18px rgba(183,124,44,.22)}
    .menu-toggle{display:none;background:none;border:0;color:var(--ink);font-size:25px}
    .page-intro{padding:70px 0 58px;border-bottom:1px solid var(--line)}
    .eyebrow,.section-kicker{color:var(--teal);font-size:13px;font-weight:800;letter-spacing:.08em}
    .eyebrow{display:flex;align-items:center;gap:8px;margin-bottom:15px}.eyebrow:before{content:"";width:22px;height:2px;background:var(--teal)}
    .page-intro h1{font-size:clamp(34px,5vw,58px);line-height:1.2;letter-spacing:-.06em;margin:0 0 17px;max-width:820px}
    .page-intro p{color:var(--ink-soft);max-width:720px;margin:0;font-size:17px}
    .crumbs{font-size:13px;color:var(--muted);margin-bottom:23px}.crumbs a{color:var(--ink-soft)}
    .section{padding:68px 0}.section-head{display:flex;align-items:end;justify-content:space-between;gap:24px;margin-bottom:28px}
    .section-head h2{font-size:31px;line-height:1.3;letter-spacing:-.045em;margin:6px 0 0}.section-head p{color:var(--ink-soft);max-width:560px;margin:0}
    .filter-bar{display:flex;align-items:center;justify-content:space-between;gap:18px;background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-md);padding:18px 22px}
    .filter-note{color:var(--ink-soft);font-size:14px}.filter-tags{display:flex;gap:8px;flex-wrap:wrap}.tag{display:inline-flex;padding:4px 10px;border-radius:5px;background:var(--teal-light);color:#47786e;font-size:12px;font-weight:700}
    .news-layout{display:grid;grid-template-columns:1fr 1.15fr;gap:18px}
    .feature-news,.news-list{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-md)}
    .feature-news{padding:31px;min-height:315px;display:flex;flex-direction:column;justify-content:end;box-shadow:var(--shadow)}
    .feature-news h3{font-size:25px;line-height:1.4;margin:25px 0 9px}.feature-news p{color:var(--ink-soft);font-size:14px;margin:0}
    .feature-link{margin-top:22px;color:var(--amber-dark);font-size:14px;font-weight:700}
    .news-list{padding:7px 25px}.news-item{display:grid;grid-template-columns:88px 1fr auto;gap:16px;align-items:center;padding:19px 0;border-bottom:1px solid var(--line)}
    .news-item:last-child{border-bottom:0}.news-date{color:var(--muted);font-size:13px}.news-item h3{font-size:16px;line-height:1.45;margin:0 0 3px}.news-item p{color:var(--ink-soft);font-size:13px;line-height:1.6;margin:0}.read{color:var(--amber-dark);font-size:13px;white-space:nowrap}
    .empty-state{padding:55px 25px;text-align:center;color:var(--muted);background:var(--surface);border:1px dashed var(--line);border-radius:var(--radius-md)}
    .dark-section{background:var(--charcoal);color:var(--white)}.dark-section .section-kicker{color:#9bc8bc}.dark-section p{color:#c9c0b5}
    .index-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}.index-card{padding:25px;border:1px solid rgba(255,255,255,.15);border-radius:var(--radius-md);background:var(--charcoal-2)}
    .index-card b{display:block;color:var(--amber);font-size:25px;margin-bottom:15px}.index-card h3{font-size:18px;margin:0 0 7px}.index-card p{font-size:14px;margin:0}
    .support-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}.support-card{padding:25px;background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-md);transition:.2s ease}.support-card:hover{transform:translateY(-3px);border-color:var(--amber);box-shadow:var(--shadow-hover)}.support-card h3{font-size:18px;margin:0 0 8px}.support-card p{font-size:14px;color:var(--ink-soft);margin:0}
    .faq-list{max-width:900px;border-top:1px solid var(--line)}details{border-bottom:1px solid var(--line);padding:0 4px}summary{list-style:none;cursor:pointer;padding:19px 4px;font-weight:700;position:relative;padding-right:35px}summary::-webkit-details-marker{display:none}summary:after{content:"＋";position:absolute;right:5px;color:var(--amber-dark);font-size:20px}details[open] summary:after{content:"－"}details p{color:var(--ink-soft);font-size:14px;margin:0 32px 20px 4px}
    .cta-band{padding:42px 48px;background:var(--charcoal);color:#fff;border-radius:var(--radius-lg);display:flex;align-items:center;justify-content:space-between;gap:24px}.cta-band h2{font-size:28px;line-height:1.35;margin:0 0 7px}.cta-band p{color:#c9c0b5;margin:0;font-size:14px}
    .btn{padding:12px 20px;font-size:15px}.btn-primary{background:var(--amber);color:#302518}.btn-outline{border-color:#bdb6a9;color:var(--ink);background:transparent}.btn-outline:hover{border-color:var(--teal);background:var(--teal-light);transform:translateY(-2px)}
    .site-footer{background:var(--charcoal);color:#fff;padding:58px 0 24px;border-top:1px solid #443f39}.footer-grid{display:grid;grid-template-columns:1.55fr 1fr 1fr 1.2fr;gap:38px}.footer-brand p,.footer-col p{color:#c9c0b5;font-size:13px;line-height:1.8}.footer-title{font-weight:800;margin-bottom:13px}.footer-col a{display:block;color:#c9c0b5;font-size:13px;margin:6px 0;transition:.2s}.footer-col a:hover{color:var(--amber)}.footer-bottom{display:flex;justify-content:space-between;gap:15px;border-top:1px solid #49443e;margin-top:38px;padding-top:18px;color:#a9a198;font-size:12px}
    a:focus-visible,button:focus-visible,summary:focus-visible{outline:3px solid rgba(212,154,67,.5);outline-offset:4px}
    @media(max-width:1024px){.main-nav{gap:16px}.header-cta{display:none}.news-layout{grid-template-columns:1fr}.footer-grid{grid-template-columns:1.4fr 1fr 1fr}}
    @media(max-width:768px){.container{width:min(var(--container),calc(100% - 32px))}.site-header{height:68px}.main-nav{display:none;position:absolute;top:68px;left:0;right:0;background:var(--surface);border-bottom:1px solid var(--line);padding:12px 20px;flex-direction:column;align-items:stretch;gap:0}.main-nav.open{display:flex}.main-nav a{padding:12px 0}.main-nav a:after{bottom:5px}.menu-toggle{display:block;margin-left:auto}.page-intro{padding:48px 0 42px}.section{padding:50px 0}.section-head{display:block}.section-head p{margin-top:10px}.filter-bar{display:block}.filter-tags{margin-top:12px}.index-grid,.support-grid{grid-template-columns:1fr}.cta-band{padding:30px 24px;display:block}.cta-band .btn{margin-top:21px}.footer-grid{grid-template-columns:1fr 1fr;gap:25px}.footer-bottom{display:block}.footer-bottom span{display:block;margin-top:5px}}
    @media(max-width:520px){.logo-text{font-size:14px}.logo-mark{width:31px;height:31px}.news-item{grid-template-columns:1fr auto;gap:4px 10px}.news-date{grid-column:1/-1}.news-item p{display:none}.feature-news{min-height:280px;padding:24px}.news-list{padding:5px 18px}.footer-grid{grid-template-columns:1fr}}

/* roulang page: category2 */
:root{
      --ink:#272522;--ink-soft:#625e57;--muted:#8d887f;--paper:#f7f4ee;
      --surface:#fffdf9;--surface-2:#eeeae1;--line:#dfd9ce;--charcoal:#292725;
      --charcoal-2:#38332f;--teal:#5c8d83;--teal-light:#e3efeb;--amber:#d49a43;
      --amber-dark:#b77c2c;--white:#fff;--radius-sm:10px;--radius-md:16px;
      --radius-lg:24px;--shadow:0 12px 32px rgba(46,39,30,.08);
      --shadow-hover:0 18px 38px rgba(46,39,30,.14);--container:1240px;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{margin:0;background:var(--paper);color:var(--ink);font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif;font-size:16px;line-height:1.8;-webkit-font-smoothing:antialiased}
    a{color:inherit;text-decoration:none} img{display:block;max-width:100%}
    button,input{font:inherit} button{cursor:pointer}
    .container{width:min(var(--container),calc(100% - 48px));margin:0 auto}
    .site-header{height:78px;background:rgba(255,253,249,.95);border-bottom:1px solid var(--line);position:sticky;top:0;z-index:20;backdrop-filter:blur(12px)}
    .header-inner{height:100%;display:flex;align-items:center;gap:28px}
    .logo{display:flex;align-items:center;gap:11px;font-weight:800;letter-spacing:-.04em;white-space:nowrap}
    .logo-mark{width:34px;height:34px;border-radius:11px;background:var(--charcoal);color:var(--amber);display:grid;place-items:center;font-size:18px}
    .logo-text{font-size:17px}
    .main-nav{display:flex;align-items:center;gap:27px;margin-left:auto}
    .main-nav a{font-size:14px;color:var(--ink-soft);position:relative;padding:25px 0;transition:color .2s ease}
    .main-nav a:after{content:"";position:absolute;left:0;right:100%;bottom:17px;height:2px;background:var(--amber);transition:right .2s ease}
    .main-nav a:hover,.main-nav a.active{color:var(--ink);font-weight:700}
    .main-nav a:hover:after,.main-nav a.active:after{right:0}
    .header-cta,.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border:1px solid transparent;border-radius:9px;font-weight:700;transition:transform .2s ease,background .2s ease,box-shadow .2s ease,border-color .2s ease}
    .header-cta{padding:9px 17px;background:var(--amber);color:#2d251b;font-size:14px}
    .header-cta:hover,.btn-primary:hover{background:var(--amber-dark);transform:translateY(-2px);box-shadow:0 8px 18px rgba(183,124,44,.22)}
    .menu-toggle{display:none;background:none;border:0;color:var(--ink);font-size:25px}
    .page-title{padding:64px 0 58px;border-bottom:1px solid var(--line)}
    .breadcrumb{color:var(--muted);font-size:13px;margin-bottom:22px}
    .breadcrumb a:hover{color:var(--amber-dark)}
    .page-title h1{font-size:clamp(34px,5vw,58px);line-height:1.2;letter-spacing:-.06em;margin:0 0 18px}
    .page-title p{max-width:720px;color:var(--ink-soft);font-size:17px;margin:0}
    .section{padding:72px 0}
    .section-head{display:flex;justify-content:space-between;align-items:end;gap:28px;margin-bottom:28px}
    .section-kicker{font-size:13px;color:var(--teal);font-weight:800;letter-spacing:.08em;margin-bottom:7px}
    .section-head h2{font-size:31px;line-height:1.3;letter-spacing:-.045em;margin:0}
    .section-head p{color:var(--ink-soft);max-width:560px;margin:0}
    .download-layout{display:grid;grid-template-columns:1.1fr .9fr;gap:22px;align-items:stretch}
    .download-card,.version-card,.step-card,.faq-item,.recommend-card{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-md);box-shadow:var(--shadow)}
    .download-card{padding:36px;display:flex;gap:30px;align-items:center}
    .app-device{width:190px;height:290px;border:7px solid var(--charcoal);border-radius:28px;background:linear-gradient(150deg,#f1e3c9,#d9ece6);position:relative;flex:0 0 auto;box-shadow:10px 14px 0 rgba(41,39,37,.08)}
    .app-device:before{content:"";position:absolute;top:10px;left:50%;transform:translateX(-50%);width:58px;height:6px;border-radius:8px;background:var(--charcoal)}
    .device-screen{position:absolute;left:17px;right:17px;top:48px;bottom:20px;border-radius:14px;background:var(--surface);padding:16px 11px}
    .screen-line{height:9px;background:var(--surface-2);border-radius:8px;margin-bottom:12px}
    .screen-line.short{width:62%;background:var(--teal-light)}
    .screen-block{height:74px;border-radius:10px;background:var(--charcoal);margin:18px 0}
    .download-card h2{font-size:28px;line-height:1.35;margin:0 0 10px}
    .download-card p{color:var(--ink-soft);margin:0 0 20px}
    .app-meta{display:flex;gap:22px;flex-wrap:wrap;color:var(--muted);font-size:13px;margin:20px 0}
    .app-meta strong{display:block;color:var(--ink);font-size:15px}
    .btn{padding:11px 19px;font-size:15px}
    .btn-primary{background:var(--amber);color:#302518}
    .btn-outline{border-color:#bdb6a9;color:var(--ink);background:transparent}
    .btn-outline:hover{border-color:var(--teal);background:var(--teal-light);transform:translateY(-2px)}
    .version-card{padding:30px}
    .version-card h3{font-size:21px;margin:0 0 18px}
    .version-row{display:flex;justify-content:space-between;gap:20px;padding:14px 0;border-bottom:1px solid var(--line);font-size:14px}
    .version-row:last-child{border-bottom:0}
    .version-row span{color:var(--muted)} .version-row strong{font-weight:700;text-align:right}
    .filter-bar{display:flex;justify-content:space-between;align-items:center;gap:20px;padding:18px 22px;background:var(--surface-2);border-radius:var(--radius-md);margin-bottom:20px}
    .filter-bar strong{font-size:15px}.filter-bar span{color:var(--ink-soft);font-size:14px}
    .qr-box{width:118px;height:118px;border:8px solid var(--white);outline:1px solid var(--line);background:repeating-linear-gradient(45deg,var(--charcoal) 0 5px,var(--surface) 5px 10px);display:grid;place-items:center;color:var(--white);font-size:11px;text-align:center}
    .qr-box span{background:var(--charcoal);padding:3px 5px}
    .install-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
    .step-card{padding:26px;min-height:190px}
    .step-no{width:38px;height:38px;border-radius:50%;background:var(--charcoal);color:var(--amber);display:grid;place-items:center;font-weight:800;margin-bottom:20px}
    .step-card h3{font-size:19px;margin:0 0 8px}.step-card p{color:var(--ink-soft);font-size:14px;margin:0}
    .notice-band{background:var(--charcoal);color:var(--white)}
    .notice-grid{display:grid;grid-template-columns:1fr 1fr;gap:18px}
    .notice-box{padding:27px;border:1px solid rgba(255,255,255,.14);border-radius:var(--radius-md);background:rgba(255,255,255,.04)}
    .notice-box h3{font-size:20px;margin:0 0 10px}.notice-box p{color:#d6cec3;font-size:14px;margin:0}
    .teal-section{background:var(--teal-light)}
    .issue-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:16px}
    .issue-card{background:var(--surface);border:1px solid rgba(92,141,131,.25);border-radius:var(--radius-md);padding:24px}
    .issue-card h3{font-size:18px;margin:0 0 7px}.issue-card p{color:var(--ink-soft);font-size:14px;margin:0}
    .faq-list{max-width:900px;margin:auto;border-top:1px solid var(--line)}
    .faq-item{box-shadow:none;border-width:0 0 1px;border-radius:0}
    .faq-item summary{list-style:none;padding:19px 4px;font-weight:700;cursor:pointer;display:flex;justify-content:space-between;gap:18px}
    .faq-item summary::-webkit-details-marker{display:none}
    .faq-item summary:after{content:"＋";color:var(--amber-dark);font-size:21px;line-height:1}
    .faq-item[open] summary:after{content:"－"}
    .faq-answer{color:var(--ink-soft);font-size:14px;padding:0 38px 20px 4px}
    .recommend-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
    .recommend-card{padding:23px;transition:.2s ease}
    .recommend-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-hover);border-color:var(--amber)}
    .recommend-card h3{font-size:18px;margin:0 0 8px}.recommend-card p{color:var(--ink-soft);font-size:14px;margin:0 0 14px}.text-link{color:var(--amber-dark);font-size:14px;font-weight:700}
    .cta{padding:48px 0;background:var(--charcoal);color:var(--white)}
    .cta-inner{display:flex;justify-content:space-between;align-items:center;gap:24px}
    .cta h2{font-size:29px;margin:0 0 7px}.cta p{color:#d4cbc0;margin:0}
    .site-footer{background:var(--charcoal);color:var(--white);border-top:1px solid rgba(255,255,255,.1);padding:54px 0 22px}
    .footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.25fr;gap:34px}
    .footer-brand p,.footer-col p{color:#c9c0b5;font-size:13px;line-height:1.8}
    .footer-title{font-weight:700;margin-bottom:12px;color:#f2ede5}.footer-col a{display:block;color:#c9c0b5;font-size:13px;margin:7px 0;transition:color .2s}.footer-col a:hover{color:var(--amber)}
    .footer-bottom{display:flex;justify-content:space-between;gap:20px;border-top:1px solid rgba(255,255,255,.12);margin-top:36px;padding-top:18px;color:#a9a198;font-size:12px}
    :focus-visible{outline:3px solid rgba(212,154,67,.55);outline-offset:3px}
    @media(max-width:1024px){.main-nav{gap:17px}.download-layout{grid-template-columns:1fr}.footer-grid{grid-template-columns:1.3fr 1fr 1fr}}
    @media(max-width:768px){
      .container{width:min(var(--container),calc(100% - 32px))}.site-header{height:68px}.header-inner{gap:12px}
      .logo-text{font-size:14px}.main-nav{display:none;position:absolute;top:68px;left:0;right:0;background:var(--surface);border-bottom:1px solid var(--line);padding:10px 16px;flex-direction:column;align-items:stretch;gap:0}
      .main-nav.open{display:flex}.main-nav a{padding:12px 4px}.main-nav a:after{bottom:5px}.menu-toggle{display:block;margin-left:auto}.header-cta{display:none}
      .page-title{padding:45px 0}.section{padding:52px 0}.section-head{display:block}.section-head p{margin-top:10px}
      .download-card{padding:25px;display:block}.app-device{margin:0 auto 28px}.install-grid,.recommend-grid{grid-template-columns:1fr}.notice-grid,.issue-grid{grid-template-columns:1fr}
      .filter-bar{display:block}.filter-bar span{display:block;margin-top:5px}.cta-inner{display:block}.cta .btn{margin-top:20px}.footer-grid{grid-template-columns:1fr 1fr}.footer-brand{grid-column:1/-1}
    }
    @media(max-width:480px){.page-title h1{font-size:35px}.download-card h2{font-size:24px}.footer-grid{grid-template-columns:1fr}.footer-bottom{display:block}.footer-bottom span{display:block;margin-top:5px}.app-meta{gap:14px}}

/* roulang page: category3 */
:root{
      --ink:#272522;
      --ink-soft:#625e57;
      --muted:#8d887f;
      --paper:#f7f4ee;
      --surface:#fffdf9;
      --surface-2:#eeeae1;
      --line:#dfd9ce;
      --charcoal:#292725;
      --charcoal-2:#38332f;
      --teal:#5c8d83;
      --teal-light:#e3efeb;
      --amber:#d49a43;
      --amber-dark:#b77c2c;
      --white:#fff;
      --radius-sm:10px;
      --radius-md:16px;
      --radius-lg:24px;
      --shadow:0 12px 32px rgba(46,39,30,.08);
      --shadow-hover:0 18px 38px rgba(46,39,30,.14);
      --container:1240px;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{
      margin:0;
      background:var(--paper);
      color:var(--ink);
      font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
      font-size:16px;
      line-height:1.8;
      -webkit-font-smoothing:antialiased;
    }
    a{color:inherit;text-decoration:none}
    button,input{font:inherit}
    button{cursor:pointer}
    .container{width:min(var(--container),calc(100% - 48px));margin:0 auto}
    .site-header{
      height:78px;
      background:rgba(255,253,249,.95);
      border-bottom:1px solid var(--line);
      position:sticky;
      top:0;
      z-index:20;
      backdrop-filter:blur(12px)
    }
    .header-inner{height:100%;display:flex;align-items:center;gap:28px}
    .logo{display:flex;align-items:center;gap:11px;font-weight:800;letter-spacing:-.04em;white-space:nowrap}
    .logo-mark{width:34px;height:34px;border-radius:11px;background:var(--charcoal);color:var(--amber);display:grid;place-items:center;font-size:18px}
    .logo-text{font-size:17px}
    .main-nav{display:flex;align-items:center;gap:27px;margin-left:auto}
    .main-nav a{font-size:14px;color:var(--ink-soft);position:relative;padding:25px 0;transition:color .2s ease}
    .main-nav a:after{content:"";position:absolute;left:0;right:100%;bottom:17px;height:2px;background:var(--amber);transition:right .2s ease}
    .main-nav a:hover,.main-nav a.active{color:var(--ink);font-weight:700}
    .main-nav a:hover:after,.main-nav a.active:after{right:0}
    .header-cta,.btn{
      display:inline-flex;align-items:center;justify-content:center;gap:8px;
      border:1px solid transparent;border-radius:9px;font-weight:700;
      transition:transform .2s ease,background .2s ease,box-shadow .2s ease,border-color .2s ease
    }
    .header-cta{padding:9px 17px;background:var(--amber);color:#2d251b;font-size:14px}
    .header-cta:hover,.btn-primary:hover{background:var(--amber-dark);transform:translateY(-2px);box-shadow:0 8px 18px rgba(183,124,44,.22)}
    .menu-toggle{display:none;background:none;border:0;color:var(--ink);font-size:25px}
    .page-title{padding:64px 0 52px;border-bottom:1px solid var(--line)}
    .breadcrumb{display:flex;gap:9px;align-items:center;color:var(--muted);font-size:13px;margin-bottom:20px}
    .breadcrumb a:hover{color:var(--amber-dark)}
    .eyebrow{display:inline-flex;align-items:center;gap:8px;color:var(--teal);font-size:13px;font-weight:800;letter-spacing:.08em;margin-bottom:15px}
    .eyebrow:before{content:"";width:22px;height:2px;background:var(--teal)}
    .page-title h1{font-size:clamp(34px,5vw,58px);line-height:1.2;letter-spacing:-.06em;margin:0 0 16px;max-width:820px}
    .page-title p{color:var(--ink-soft);max-width:760px;margin:0;font-size:17px}
    .section{padding:68px 0}
    .section-head{display:flex;justify-content:space-between;align-items:end;gap:28px;margin-bottom:28px}
    .section-kicker{font-size:13px;color:var(--teal);font-weight:800;margin-bottom:7px}
    .section-head h2{font-size:30px;line-height:1.3;letter-spacing:-.045em;margin:0}
    .section-head p{color:var(--ink-soft);max-width:540px;margin:0}
    .filter-bar{display:flex;align-items:center;justify-content:space-between;gap:20px;padding:18px 22px;background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-md)}
    .filter-bar strong{font-size:15px}
    .filter-note{color:var(--muted);font-size:13px}
    .status{display:inline-flex;align-items:center;gap:8px;color:#47786e;background:var(--teal-light);padding:6px 11px;border-radius:20px;font-size:12px;font-weight:700}
    .status:before{content:"";width:7px;height:7px;background:var(--teal);border-radius:50%}
    .path-list{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}
    .path-card{position:relative;background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-md);padding:25px 22px;min-height:190px;transition:.2s ease}
    .path-card:hover{transform:translateY(-3px);border-color:var(--amber);box-shadow:var(--shadow)}
    .path-num{font-size:13px;color:var(--amber-dark);font-weight:800;letter-spacing:.08em}
    .path-card h3{font-size:19px;margin:21px 0 8px}
    .path-card p{font-size:14px;color:var(--ink-soft);margin:0}
    .path-card:not(:last-child):after{content:"→";position:absolute;right:-21px;top:78px;color:var(--amber-dark);font-size:22px;z-index:2}
    .scenario-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:18px}
    .scenario-main,.scenario-side{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-md);padding:28px}
    .scenario-main{background:var(--charcoal);color:var(--white)}
    .scenario-main h3,.scenario-side h3{font-size:23px;margin:18px 0 10px}
    .scenario-main p{color:#d3cbc0;margin:0}
    .scenario-icon{width:44px;height:44px;border-radius:13px;background:var(--amber);color:var(--charcoal);display:grid;place-items:center;font-weight:800}
    .scenario-side ul{margin:16px 0 0;padding:0;list-style:none}
    .scenario-side li{padding:11px 0;border-bottom:1px solid var(--line);color:var(--ink-soft);font-size:14px}
    .scenario-side li:last-child{border-bottom:0}
    .scenario-side li:before{content:"•";color:var(--teal);font-size:22px;vertical-align:-2px;margin-right:9px}
    .account-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
    .info-card{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-md);padding:24px;transition:.2s ease}
    .info-card:hover{box-shadow:var(--shadow);border-color:#cdbb9f}
    .info-card h3{font-size:18px;margin:0 0 8px}
    .info-card p{font-size:14px;color:var(--ink-soft);margin:0}
    .card-label{display:inline-flex;color:var(--amber-dark);font-size:12px;font-weight:800;margin-bottom:15px}
    .trouble-section{background:var(--charcoal);color:var(--white)}
    .trouble-section .section-kicker{color:#9bc8bc}
    .trouble-section .section-head p{color:#c9c0b5}
    .trouble-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:12px}
    .trouble-item{padding:21px 23px;border:1px solid rgba(255,255,255,.14);border-radius:var(--radius-md);background:rgba(255,255,255,.045)}
    .trouble-item h3{font-size:17px;margin:0 0 7px}
    .trouble-item p{color:#c9c0b5;font-size:14px;margin:0}
    .faq-list{max-width:900px;border-top:1px solid var(--line)}
    .faq-item{border-bottom:1px solid var(--line)}
    .faq-item summary{list-style:none;cursor:pointer;min-height:60px;padding:18px 42px 18px 0;font-weight:700;position:relative}
    .faq-item summary::-webkit-details-marker{display:none}
    .faq-item summary:after{content:"＋";position:absolute;right:5px;color:var(--amber-dark);font-size:22px;font-weight:400}
    .faq-item[open] summary:after{content:"−"}
    .faq-answer{padding:0 42px 20px 0;color:var(--ink-soft);font-size:14px}
    .notice{display:flex;gap:16px;align-items:flex-start;padding:24px 26px;background:var(--teal-light);border:1px solid #c8ded8;border-radius:var(--radius-md)}
    .notice-mark{width:28px;height:28px;flex:0 0 auto;border-radius:50%;background:var(--teal);color:var(--white);display:grid;place-items:center;font-weight:800}
    .notice h3{margin:0 0 5px;font-size:18px}
    .notice p{margin:0;color:#41675f;font-size:14px}
    .cta-band{padding:38px 42px;background:var(--charcoal);color:var(--white);border-radius:var(--radius-lg);display:flex;justify-content:space-between;align-items:center;gap:25px}
    .cta-band h2{margin:0 0 6px;font-size:28px;letter-spacing:-.04em}
    .cta-band p{margin:0;color:#c9c0b5;font-size:14px}
    .btn{padding:12px 20px;font-size:15px}
    .btn-primary{background:var(--amber);color:#302518}
    .btn-outline{border-color:#bdb6a9;color:var(--ink);background:transparent}
    .site-footer{background:var(--charcoal);color:var(--white);padding:58px 0 25px;margin-top:0}
    .footer-grid{display:grid;grid-template-columns:1.4fr .8fr .8fr 1fr;gap:42px}
    .footer-brand p,.footer-col p{color:#bdb5aa;font-size:13px;line-height:1.8}
    .footer-title{font-weight:800;font-size:14px;margin-bottom:14px;color:#f4ede2}
    .footer-col a{display:block;color:#bdb5aa;font-size:13px;margin:8px 0;transition:color .2s ease}
    .footer-col a:hover{color:var(--amber)}
    .footer-bottom{display:flex;justify-content:space-between;gap:20px;border-top:1px solid rgba(255,255,255,.13);margin-top:40px;padding-top:18px;color:#928b82;font-size:12px}
    :focus-visible{outline:3px solid rgba(212,154,67,.55);outline-offset:3px}
    @media(max-width:1024px){
      .main-nav{gap:16px}
      .path-list{grid-template-columns:repeat(2,1fr)}
      .path-card:not(:last-child):after{display:none}
      .footer-grid{grid-template-columns:1fr 1fr}
    }
    @media(max-width:768px){
      .container{width:min(100% - 34px,var(--container))}
      .site-header{height:70px}
      .header-inner{gap:14px}
      .logo-text{font-size:14px}
      .logo-mark{width:31px;height:31px}
      .main-nav{display:none;position:absolute;top:70px;left:0;right:0;margin:0;padding:12px 20px 20px;background:var(--surface);border-bottom:1px solid var(--line);box-shadow:var(--shadow);flex-direction:column;align-items:stretch;gap:0}
      .main-nav.open{display:flex}
      .main-nav a{padding:12px 4px}
      .main-nav a:after{bottom:5px}
      .header-cta{display:none}
      .menu-toggle{display:block;margin-left:auto}
      .page-title{padding:44px 0 38px}
      .section{padding:52px 0}
      .section-head{display:block}
      .section-head p{margin-top:10px}
      .path-list,.account-grid,.trouble-grid,.scenario-grid{grid-template-columns:1fr}
      .filter-bar{align-items:flex-start;flex-direction:column}
      .cta-band{padding:28px 24px;display:block}
      .cta-band .btn{margin-top:20px}
    }
    @media(max-width:520px){
      .page-title h1{font-size:34px}
      .page-title p{font-size:15px}
      .section-head h2{font-size:26px}
      .footer-grid{grid-template-columns:1fr;gap:24px}
      .footer-bottom{display:block}
      .footer-bottom span{display:block;margin-top:5px}
      .notice{padding:20px}
    }