/* roulang page: index */
:root{
  --ink:#123B34;
  --ink-mid:#1E5C50;
  --ink-light:#DCE7E2;
  --accent:#C05A2B;
  --accent-hover:#A34A22;
  --bg:#F7F4EE;
  --white:#FFFFFF;
  --dark:#0E2A25;
  --line:#E3DCD0;
  --line-soft:#EFEAE0;
  --text:#1A1D1B;
  --body:#4E5A55;
  --muted:#8A938E;
  --r-card:4px;
  --r-btn:3px;
  --sh-card:0 1px 0 var(--line-soft);
  --sh-hover:0 8px 24px rgba(18,59,52,.08);
  --s1:4px; --s2:8px; --s3:12px; --s4:16px; --s5:24px; --s6:32px; --s7:48px; --s8:64px; --s9:96px; --s10:120px;
  --ease:cubic-bezier(.2,.7,.2,1);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg);
  color:var(--body);
  font-family:"Noto Sans SC","Helvetica Neue",Arial,sans-serif;
  font-size:16px;
  line-height:1.9;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border-radius:var(--r-card)}
a{color:var(--ink-mid);text-decoration:none;transition:color .18s var(--ease)}
a:hover{color:var(--ink)}
button{font-family:inherit}
h1,h2,h3,h4{font-family:"Noto Serif SC","Songti SC",serif;color:var(--text);margin:0;font-weight:700;letter-spacing:-.01em}
p{margin:0 0 var(--s4)}
ul,ol{margin:0;padding:0;list-style:none}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px}
.mono{font-family:"Inter",ui-monospace,SFMono-Regular,Menlo,monospace;font-variant-numeric:tabular-nums}
.wrap{width:100%;max-width:1200px;margin:0 auto;padding:0 48px}
.wrap-wide{max-width:1280px}
.section{padding:var(--s9) 0}
.section-tight{padding:var(--s7) 0}
.eyebrow{display:inline-block;font-size:12px;letter-spacing:.14em;color:var(--ink-mid);font-weight:500;text-transform:none}
.section-title{font-size:clamp(24px,3vw,38px);line-height:1.25;margin:0 0 var(--s3)}
.section-sub{font-size:16px;color:var(--body);max-width:34em;margin:0}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:var(--s5);margin-bottom:var(--s6);flex-wrap:wrap}
.link-arrow{display:inline-flex;align-items:center;gap:6px;font-size:14px;color:var(--ink-mid);font-weight:500;white-space:nowrap}
.link-arrow i{transition:transform .18s var(--ease)}
.link-arrow:hover i{transform:translateX(4px)}
.divider{height:1px;background:var(--line);border:0;margin:0}

/* ---------- header ---------- */
.site-header{position:sticky;top:0;z-index:60;background:var(--bg);border-bottom:1px solid transparent;transition:border-color .2s var(--ease)}
.site-header.is-scrolled{border-bottom-color:var(--line)}
.nav-bar{display:flex;align-items:center;gap:var(--s5);height:64px;transition:height .2s var(--ease)}
.site-header.is-scrolled .nav-bar{height:56px}
.logo{display:inline-flex;align-items:center;gap:10px;color:var(--ink);font-family:"Noto Serif SC",serif;font-weight:700;font-size:17px;letter-spacing:0;white-space:nowrap}
.logo:hover{color:var(--ink)}
.logo-mark{width:26px;height:26px;flex:0 0 26px}
.nav-links{display:flex;align-items:center;gap:2px;margin:0 auto}
.nav-links a{position:relative;display:inline-block;padding:8px 12px;font-size:15px;color:var(--body);border-radius:var(--r-btn);transition:background-color .16s var(--ease),color .16s var(--ease)}
.nav-links a:hover{color:var(--ink);background:var(--ink-light)}
.nav-links a.is-active{color:var(--ink);font-weight:500}
.nav-links a.is-active::after{content:"";position:absolute;left:12px;right:12px;bottom:0;height:2px;background:var(--accent)}
.nav-right{display:flex;align-items:center;gap:var(--s3)}
.search-box{display:flex;align-items:center;gap:8px;width:220px;height:36px;padding:0 10px;background:var(--white);border:1px solid var(--line);border-radius:var(--r-btn);transition:border-color .18s var(--ease)}
.search-box:focus-within{border-color:var(--ink-mid)}
.search-box i{font-size:12px;color:var(--muted)}
.search-box input{width:100%;border:0;background:transparent;font-size:13px;color:var(--text);outline:none;padding:0;line-height:1}
.search-box input::placeholder{color:var(--muted)}
.kbd{font-family:"Inter",monospace;font-size:11px;color:var(--muted);border:1px solid var(--line);border-radius:3px;padding:1px 5px;line-height:1.4;white-space:nowrap}
.nav-login{font-size:14px;color:var(--ink);padding:8px 4px}
.nav-login:hover{color:var(--accent)}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:44px;padding:0 24px;border-radius:var(--r-btn);border:1px solid transparent;font-size:15px;font-weight:500;line-height:1;cursor:pointer;transition:background-color .18s var(--ease),color .18s var(--ease),border-color .18s var(--ease),transform .18s var(--ease);text-align:center}
.btn-primary{background:var(--ink);color:#F7F4EE}
.btn-primary:hover,.btn-primary:focus{background:var(--dark);color:#FFFFFF;transform:translateY(-1px)}
.btn-ghost{background:transparent;border-color:var(--ink);color:var(--ink)}
.btn-ghost:hover,.btn-ghost:focus{background:var(--ink-light);color:var(--ink)}
.btn-accent{background:var(--accent);color:#FFF7F1}
.btn-accent:hover,.btn-accent:focus{background:var(--accent-hover);color:#FFFFFF;transform:translateY(-1px)}
.btn-sm{height:36px;padding:0 16px;font-size:14px}
.nav-toggle{display:none;width:44px;height:44px;align-items:center;justify-content:center;border:0;background:transparent;color:var(--ink);font-size:18px;cursor:pointer}
.icon-btn{display:none;width:44px;height:44px;align-items:center;justify-content:center;border:0;background:transparent;color:var(--ink);font-size:16px;cursor:pointer}

/* drawer & search overlay */
.drawer{position:fixed;inset:0;z-index:90;background:var(--bg);display:flex;flex-direction:column;padding:20px;transform:translateX(100%);visibility:hidden;transition:transform .28s var(--ease),visibility .28s var(--ease)}
.drawer.is-open{transform:translateX(0);visibility:visible}
.drawer-head{display:flex;align-items:center;justify-content:space-between;height:48px}
.drawer-links{display:flex;flex-direction:column;gap:2px;margin-top:var(--s5);flex:1}
.drawer-links a{font-family:"Noto Serif SC",serif;font-size:18px;color:var(--text);padding:14px 4px;border-bottom:1px solid var(--line-soft)}
.drawer-links a.is-active{color:var(--accent)}
.drawer-cta{margin-top:var(--s5)}
.drawer-cta .btn{width:100%;height:48px}
.search-overlay{position:fixed;inset:0;z-index:95;background:rgba(14,42,37,.45);display:none;padding:80px 20px 20px}
.search-overlay.is-open{display:block}
.search-panel{max-width:560px;margin:0 auto;background:var(--white);border:1px solid var(--line);border-radius:var(--r-card);padding:var(--s4);box-shadow:var(--sh-hover)}
.search-panel input{width:100%;height:48px;border:1px solid var(--line);border-radius:var(--r-btn);padding:0 14px;font-size:15px;color:var(--text);outline:none}
.search-panel input:focus{border-color:var(--ink-mid)}
.search-hint{margin-top:var(--s3);font-size:13px;color:var(--muted)}

/* ---------- hero ---------- */
.hero{padding:72px 0 var(--s9);position:relative;overflow:hidden}
.hero-title{font-size:clamp(30px,4.4vw,56px);line-height:1.18;letter-spacing:-.01em;margin:var(--s4) 0 var(--s5);max-width:11em}
.hero-sub{font-size:17px;line-height:1.9;color:var(--body);max-width:30em;margin:0 0 var(--s6)}
.hero-actions{display:flex;flex-wrap:wrap;gap:var(--s3)}
.hero-actions .btn{min-width:132px}
.hero-note{margin:var(--s5) 0 0;font-size:13px;color:var(--muted);display:flex;flex-wrap:wrap;gap:var(--s3)}
.hero-note span{display:inline-flex;align-items:center;gap:6px}
.hero-note i{color:var(--ink-mid);font-size:11px}
.hero-media{position:relative;padding:0 0 0 18px}
.hero-media::before{content:"";position:absolute;top:-14px;right:-14px;width:120px;height:120px;border-top:1px solid var(--ink-mid);border-right:1px solid var(--ink-mid);border-radius:0 4px 0 0}
.hero-media img{width:100%;height:100%;max-height:540px;object-fit:cover;border-radius:var(--r-card)}
.hero-media figcaption{position:absolute;left:18px;bottom:0;transform:translateY(50%);background:var(--bg);padding:0 12px;font-size:12px;letter-spacing:.14em;color:var(--muted)}
.hero-tag{position:absolute;left:34px;top:24px;background:var(--white);border:1px solid var(--line);border-radius:999px;padding:4px 12px;font-size:12px;color:var(--ink);display:inline-flex;align-items:center;gap:6px}
.dot-live{width:6px;height:6px;border-radius:50%;background:var(--accent);display:inline-block}

/* ---------- capability 5/7 ---------- */
.cap-aside{position:sticky;top:96px}
.cap-list{border-top:1px solid var(--line)}
.cap-item{display:flex;align-items:flex-start;gap:var(--s4);padding:var(--s5) var(--s4);border-bottom:1px solid var(--line-soft);transition:background-color .18s var(--ease)}
.cap-item:hover{background:var(--bg)}
.cap-num{font-family:"Inter",monospace;font-variant-numeric:tabular-nums;font-size:14px;color:var(--accent);flex:0 0 34px;padding-top:2px;letter-spacing:.04em}
.cap-body{flex:1}
.cap-body h3{font-size:18px;line-height:1.5;margin:0 0 6px;font-family:"Noto Sans SC",sans-serif;font-weight:700;color:var(--text)}
.cap-body p{margin:0;font-size:14.5px;line-height:1.8;color:var(--body)}
.cap-item .link-arrow{opacity:0;transform:translateX(-4px);transition:opacity .18s var(--ease),transform .18s var(--ease);align-self:center}
.cap-item:hover .link-arrow{opacity:1;transform:translateX(0)}

/* ---------- stats ---------- */
.stats-band{background:var(--dark);color:#EFEAE0;padding:var(--s7) 0}
.stats-grid{display:grid;grid-template-columns:repeat(4,1fr)}
.stat{padding:8px var(--s6);border-left:1px solid rgba(220,231,226,.16)}
.stat:first-child{border-left:0;padding-left:0}
.stat-num{font-family:"Inter",monospace;font-variant-numeric:tabular-nums;font-size:clamp(30px,3.4vw,46px);line-height:1.1;color:#FFFFFF;font-weight:600;letter-spacing:-.02em}
.stat-num small{font-size:.42em;color:var(--ink-light);margin-left:4px;font-weight:500}
.stat-label{margin-top:10px;font-size:12.5px;line-height:1.7;color:rgba(220,231,226,.78)}

/* ---------- cards ---------- */
.work-card{display:flex;flex-direction:column;height:100%;background:var(--white);border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden;box-shadow:var(--sh-card);transition:border-color .2s var(--ease),box-shadow .2s var(--ease),transform .2s var(--ease)}
.work-card:hover{border-color:var(--ink-mid);box-shadow:var(--sh-hover)}
.work-cover{overflow:hidden;aspect-ratio:16/10;margin:0}
.work-cover img{width:100%;height:100%;object-fit:cover;border-radius:0;transition:transform .3s var(--ease)}
.work-card:hover .work-cover img{transform:scale(1.02)}
.work-body{padding:var(--s5);display:flex;flex-direction:column;gap:10px;flex:1}
.badge{display:inline-flex;align-items:center;gap:6px;align-self:flex-start;background:var(--ink-light);color:var(--ink);border-radius:999px;padding:3px 10px;font-size:12px;line-height:1.6}
.work-body h3{font-family:"Noto Sans SC",sans-serif;font-size:18px;font-weight:700;line-height:1.55;margin:0;color:var(--text)}
.work-body p{margin:0;font-size:14px;line-height:1.8;color:var(--body)}
.work-foot{margin-top:auto;padding-top:var(--s3);display:flex;align-items:center;justify-content:space-between;font-size:13px;color:var(--muted)}

/* ---------- plans ---------- */
.plan-block{border-top:1px solid var(--line);padding:var(--s7) 0}
.plan-block:last-of-type{border-bottom:1px solid var(--line)}
.plan-media img{width:100%;aspect-ratio:4/3;object-fit:cover}
.plan-text h3{font-size:clamp(22px,2.4vw,28px);line-height:1.35;margin:var(--s3) 0 var(--s4)}
.plan-text p{font-size:15.5px;line-height:1.85;margin:0 0 var(--s5);max-width:32em}
.ticks{margin:0 0 var(--s5)}
.ticks li{position:relative;padding-left:20px;margin-bottom:10px;font-size:15px;line-height:1.8;color:var(--body)}
.ticks li::before{content:"";position:absolute;left:0;top:.72em;width:8px;height:1px;background:var(--accent)}

/* ---------- news ---------- */
.news-list{border-top:1px solid var(--line)}
.news-item{display:flex;gap:var(--s5);padding:var(--s5) 0;border-bottom:1px solid var(--line-soft);transition:background-color .18s var(--ease)}
.news-item:hover{background:rgba(220,231,226,.28)}
.news-thumb{flex:0 0 172px;aspect-ratio:16/11;overflow:hidden;border-radius:var(--r-card);background:var(--ink-light)}
.news-thumb img{width:100%;height:100%;object-fit:cover;border-radius:0;transition:transform .3s var(--ease)}
.news-item:hover .news-thumb img{transform:scale(1.02)}
.news-body{flex:1;min-width:0;display:flex;flex-direction:column;gap:8px}
.news-title{font-family:"Noto Sans SC",sans-serif;font-size:18px;font-weight:700;line-height:1.55;color:var(--text);margin:0;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;transition:color .18s var(--ease)}
.news-item:hover .news-title{color:var(--ink-mid)}
.news-desc{margin:0;font-size:14px;line-height:1.8;color:var(--body);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-meta{display:flex;flex-wrap:wrap;align-items:center;gap:var(--s3);font-size:13px;color:var(--muted)}
.news-empty{display:flex;align-items:center;gap:var(--s4);background:var(--white);border:1px solid var(--line);border-radius:var(--r-card);padding:var(--s5);color:var(--body);font-size:15px}
.news-empty i{color:var(--ink-mid);font-size:18px}
.news-empty .link-arrow{margin-left:auto}

/* ---------- faq ---------- */
.faq{max-width:820px}
.faq-item{border-bottom:1px solid var(--line)}
.faq-q{width:100%;display:flex;align-items:center;justify-content:space-between;gap:var(--s4);background:transparent;border:0;padding:22px 0;text-align:left;cursor:pointer;font-family:"Noto Sans SC",sans-serif;font-size:17px;font-weight:500;color:var(--text);line-height:1.6}
.faq-q:hover{color:var(--ink-mid)}
.faq-q .faq-icon{flex:0 0 22px;width:22px;height:22px;display:inline-flex;align-items:center;justify-content:center;color:var(--ink-mid);transition:transform .18s var(--ease)}
.faq-item.is-open .faq-icon{transform:rotate(180deg)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .25s var(--ease)}
.faq-a p{margin:0 0 22px;font-size:15px;line-height:1.85;color:var(--body);padding-right:36px}

/* ---------- cta / form ---------- */
.cta-band{border-top:1px solid var(--line);padding:var(--s9) 0;background:var(--bg)}
.cta-copy h2{font-size:clamp(24px,3vw,34px);line-height:1.3;margin:0 0 var(--s4)}
.cta-copy p{font-size:15.5px;line-height:1.85;max-width:30em}
.cta-contact{display:flex;flex-direction:column;gap:10px;margin-top:var(--s5);font-size:14px;color:var(--body)}
.cta-contact span{display:flex;align-items:center;gap:10px}
.cta-contact i{color:var(--ink-mid);width:16px;text-align:center}
.form-card{background:var(--white);border:1px solid var(--line);border-radius:var(--r-card);padding:var(--s6);box-shadow:var(--sh-card)}
.field{margin-bottom:var(--s4)}
.field label{display:block;font-size:13.5px;color:var(--text);font-weight:500;margin-bottom:8px}
.field label .req{color:var(--accent);margin-left:2px}
.field input,.field textarea{width:100%;height:44px;border:1px solid var(--line);border-radius:var(--r-btn);background:var(--white);padding:0 14px;font-size:15px;color:var(--text);font-family:inherit;outline:none;transition:border-color .18s var(--ease)}
.field textarea{height:104px;padding:12px 14px;line-height:1.7;resize:vertical}
.field input:focus,.field textarea:focus{border-color:var(--ink-mid)}
.field.has-error input,.field.has-error textarea{border-color:var(--accent-hover)}
.field-err{display:none;margin-top:6px;font-size:12.5px;color:var(--accent-hover)}
.field.has-error .field-err{display:block}
.form-ok{display:none;margin-top:var(--s4);background:var(--ink-light);border-radius:var(--r-btn);padding:12px 14px;font-size:13.5px;color:var(--ink)}
.form-ok.is-visible{display:block}
.form-note{margin:var(--s3) 0 0;font-size:12.5px;color:var(--muted)}

/* ---------- footer ---------- */
.site-footer{background:var(--dark);color:#DCE7E2;padding:var(--s8) 0 0}
.foot-brand .logo{color:#FFFFFF}
.foot-brand p{margin:var(--s4) 0 0;font-size:14px;line-height:1.85;color:rgba(220,231,226,.72);max-width:22em}
.foot-col h4{font-family:"Noto Sans SC",sans-serif;font-size:14px;font-weight:500;color:#FFFFFF;margin:0 0 var(--s4);letter-spacing:0}
.foot-col ul li{margin-bottom:10px}
.foot-col a{font-size:14px;color:rgba(220,231,226,.72);display:inline-block;transition:color .18s var(--ease),transform .18s var(--ease)}
.foot-col a:hover{color:var(--ink-light);transform:translateX(2px)}
.foot-contact{font-size:14px;line-height:1.9;color:rgba(220,231,226,.72)}
.foot-contact .mono{color:#FFFFFF;font-size:16px;letter-spacing:.02em}
.foot-bottom{margin-top:var(--s7);border-top:1px solid rgba(220,231,226,.14);padding:var(--s5) 0;display:flex;align-items:center;justify-content:space-between;gap:var(--s4);flex-wrap:wrap;font-size:13px;color:rgba(220,231,226,.6)}
.to-top{display:inline-flex;align-items:center;gap:8px;color:rgba(220,231,226,.8);font-size:13px}
.to-top:hover{color:#FFFFFF}

/* reveal */
.reveal{opacity:0;transform:translateY(12px);transition:opacity .28s var(--ease),transform .28s var(--ease)}
.reveal.is-in{opacity:1;transform:none}

@media (max-width:1024px){
  .wrap{padding:0 32px}
  .section{padding:72px 0}
  .hero{padding:56px 0 72px}
  .hero-media{padding:0;margin-top:var(--s7)}
  .hero-media::before{display:none}
  .hero-media figcaption{position:static;transform:none;padding:12px 0 0;left:auto;bottom:auto}
  .cap-aside{position:static;margin-bottom:var(--s6)}
  .stats-grid{grid-template-columns:repeat(2,1fr);gap:var(--s5) 0}
  .stat{border-left:0;padding:0}
  .stat:nth-child(odd){border-left:0}
  .nav-links{display:none}
  .search-box{display:none}
  .nav-login{display:none}
  .nav-toggle{display:inline-flex}
  .icon-btn{display:inline-flex}
  .nav-bar{gap:var(--s3);justify-content:space-between}
  .nav-right .btn{height:38px;padding:0 16px;font-size:14px}
  .nav-right{margin-left:auto}
}
@media (max-width:640px){
  body{font-size:15px}
  .wrap{padding:0 20px}
  .section{padding:56px 0}
  .hero{padding:40px 0 56px}
  .hero-sub{font-size:16px}
  .hero-actions .btn{flex:1 1 140px;min-width:0}
  .hero-note{gap:var(--s3);font-size:12.5px}
  .work-body,.form-card{padding:20px}
  .news-item{flex-direction:column;gap:var(--s3)}
  .news-thumb{flex:none;width:100%;aspect-ratio:16/9}
  .stats-grid{grid-template-columns:repeat(2,1fr)}
  .stat-num{font-size:28px}
  .section-head{flex-direction:column;align-items:flex-start;gap:var(--s3)}
  .faq-q{font-size:16px;padding:18px 0}
  .foot-bottom{flex-direction:column;align-items:flex-start}
  .plan-text h3{font-size:22px}
  .cta-band{padding:56px 0}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important}
  .reveal{opacity:1;transform:none}
  html{scroll-behavior:auto}
}

/* roulang page: article */
:root{
  --ink-900:#0E2A25;
  --ink-800:#123B34;
  --ink-600:#1E5C50;
  --ink-100:#DCE7E2;
  --accent:#C05A2B;
  --accent-dark:#A34A22;
  --bg:#F7F4EE;
  --surface:#FFFFFF;
  --line:#E3DCD0;
  --line-soft:#EFEAE0;
  --t-1:#1A1D1B;
  --t-2:#4E5A55;
  --t-3:#8A938E;
  --r-card:4px;
  --r-btn:3px;
  --r-pill:999px;
  --shadow-card:0 1px 0 var(--line-soft);
  --shadow-hover:0 8px 24px rgba(18,59,52,.08);
  --ease:cubic-bezier(.2,.7,.2,1);
  --serif:"Noto Serif SC","Songti SC",Georgia,serif;
  --sans:"Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  --mono:"IBM Plex Mono","SFMono-Regular",Consolas,monospace;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg);
  color:var(--t-2);
  font-family:var(--sans);
  font-size:16px;
  line-height:1.9;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
  overflow-x:hidden;
}
body.drawer-open,body.sheet-open{overflow:hidden}
img{max-width:100%;display:block;border:0}
a{color:var(--ink-600);text-decoration:none;transition:color .16s var(--ease)}
a:hover{color:var(--ink-800)}
button{font-family:inherit;cursor:pointer}
h1,h2,h3,h4{margin:0;color:var(--t-1);font-weight:700}
p{margin:0}
ul,ol{margin:0;padding:0}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px}
.wrap{max-width:1200px;margin:0 auto;padding:0 48px}
.mono{font-family:var(--mono);font-variant-numeric:tabular-nums;letter-spacing:-0.01em}

/* ---------- Header ---------- */
.site-header{
  position:sticky;top:0;z-index:90;
  background:var(--bg);
  border-bottom:1px solid transparent;
  transition:border-color .2s var(--ease);
}
.site-header.is-stuck{border-bottom-color:var(--line)}
.header-inner{
  display:flex;align-items:center;gap:24px;
  height:68px;
  transition:height .2s var(--ease);
}
.site-header.is-stuck .header-inner{height:58px}
.logo{
  display:inline-flex;align-items:center;gap:10px;flex:none;
  font-family:var(--serif);font-weight:700;font-size:18px;letter-spacing:-0.01em;
  color:var(--ink-800);line-height:1;
}
.logo:hover{color:var(--ink-900)}
.logo-mark{width:28px;height:28px;flex:none}
.nav-links{display:flex;align-items:center;gap:2px;flex:1;min-width:0}
.nav-links a{
  position:relative;display:inline-block;
  padding:8px 11px;border-radius:var(--r-btn);
  font-size:15px;font-weight:500;line-height:1.4;color:var(--t-2);
  white-space:nowrap;
  transition:color .16s var(--ease),background-color .16s var(--ease);
}
.nav-links a:hover{color:var(--ink-800);background:var(--ink-100)}
.nav-links a.is-active{color:var(--ink-800);font-weight:600}
.nav-links a.is-active::after{
  content:"";position:absolute;left:11px;right:11px;bottom:1px;
  height:2px;background:var(--accent);border-radius:2px;
}
.header-actions{display:flex;align-items:center;gap:12px;flex:none;margin-left:auto}
.cmd-search{
  display:flex;align-items:center;gap:6px;
  width:216px;height:36px;padding:0 8px 0 10px;
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-btn);
  transition:border-color .16s var(--ease);
}
.cmd-search:focus-within{border-color:var(--ink-600)}
.cmd-search svg{width:14px;height:14px;flex:none;color:var(--t-3)}
.cmd-search input{
  flex:1;min-width:0;border:0;outline:0;background:transparent;
  font-family:var(--sans);font-size:13px;color:var(--t-1);line-height:1.4;
}
.cmd-search input::placeholder{color:var(--t-3)}
.cmd-key{
  flex:none;font-family:var(--mono);font-size:11px;line-height:1.4;color:var(--t-3);
  border:1px solid var(--line-soft);border-radius:3px;padding:1px 5px;
}
.link-quiet{font-size:15px;font-weight:500;color:var(--t-2);padding:8px 4px}
.link-quiet:hover{color:var(--ink-800)}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;padding:0 24px;border-radius:var(--r-btn);
  font-family:var(--sans);font-size:15px;font-weight:500;line-height:1;
  border:1px solid transparent;
  transition:background-color .18s var(--ease),color .18s var(--ease),border-color .18s var(--ease),transform .18s var(--ease);
}
.btn-primary{background:var(--ink-800);color:#F7F4EE;border-color:var(--ink-800)}
.btn-primary:hover{background:var(--ink-900);border-color:var(--ink-900);color:#F7F4EE;transform:translateY(-1px)}
.btn-ghost{background:transparent;color:var(--ink-800);border-color:var(--ink-800)}
.btn-ghost:hover{background:var(--ink-100);color:var(--ink-800)}
.btn-sm{min-height:36px;height:36px;padding:0 16px;font-size:14px}
.icon-btn{
  display:none;align-items:center;justify-content:center;
  width:44px;height:44px;padding:0;
  background:transparent;border:1px solid transparent;border-radius:var(--r-btn);
  color:var(--ink-800);
  transition:background-color .16s var(--ease);
}
.icon-btn:hover{background:var(--ink-100)}
.icon-btn svg{width:18px;height:18px}

/* ---------- Mobile drawer & search sheet ---------- */
.mobile-drawer{
  position:fixed;inset:0;z-index:130;
  background:var(--bg);
  display:flex;flex-direction:column;
  padding:18px 20px 28px;
  transform:translateX(100%);
  visibility:hidden;
  transition:transform .28s var(--ease),visibility .28s var(--ease);
}
.mobile-drawer.is-open{transform:none;visibility:visible}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:24px}
.drawer-title{font-family:var(--serif);font-weight:700;font-size:18px;color:var(--ink-800)}
.drawer-nav{display:flex;flex-direction:column;flex:1;overflow-y:auto}
.drawer-nav a{
  display:block;padding:16px 0;font-size:18px;font-weight:500;color:var(--t-1);
  border-bottom:1px solid var(--line-soft);
}
.drawer-nav a:hover{color:var(--ink-600)}
.drawer-cta{width:100%;margin-top:24px}
.search-sheet{
  position:fixed;inset:0;z-index:140;display:none;
  background:rgba(14,42,37,.97);
  padding:80px 20px 20px;
}
.search-sheet.is-open{display:block}
.search-sheet-inner{max-width:640px;margin:0 auto}
.search-sheet-bar{
  display:flex;align-items:center;gap:12px;
  background:var(--surface);border-radius:var(--r-btn);padding:8px 8px 8px 18px;
}
.search-sheet-bar input{
  flex:1;min-width:0;border:0;outline:0;background:transparent;
  font-family:var(--sans);font-size:16px;color:var(--t-1);height:40px;
}
.search-sheet-bar .icon-btn{display:inline-flex;color:var(--ink-800)}
.search-hint{margin-top:18px;font-size:13px;line-height:1.8;color:#B6C7C1}

/* ---------- Breadcrumb ---------- */
.crumbs{padding:26px 0 0;font-size:13px;line-height:1.7;color:var(--t-3)}
.crumbs a{color:var(--t-3)}
.crumbs a:hover{color:var(--ink-600)}
.crumbs .sep{margin:0 8px;color:var(--line)}
.crumbs .cur{color:var(--t-1)}

/* ---------- Article head ---------- */
.article-head{max-width:860px;padding:26px 0 0}
.badge{
  display:inline-block;padding:4px 10px;border-radius:var(--r-pill);
  background:var(--ink-100);color:var(--ink-600);
  font-size:12px;font-weight:500;line-height:1.6;letter-spacing:.02em;
}
.article-head h1{
  font-family:var(--serif);font-weight:700;
  font-size:clamp(26px,3.2vw,40px);line-height:1.3;letter-spacing:-0.01em;
  color:var(--t-1);margin-top:18px;
}
.article-meta{
  display:flex;flex-wrap:wrap;align-items:center;gap:10px 14px;
  margin-top:20px;font-size:13px;line-height:1.7;color:var(--t-3);
}
.article-meta .dot{width:3px;height:3px;border-radius:50%;background:var(--line);display:inline-block}
.article-meta .mono{color:var(--t-2)}
.article-rule{height:1px;background:var(--line);margin:26px 0 0}

/* ---------- Article body ---------- */
.article-layout{padding:40px 0 0}
.article-body{
  max-width:760px;margin:0 auto;
  font-size:17px;line-height:1.9;color:var(--t-2);
  word-wrap:break-word;overflow-wrap:break-word;
}
.article-body > *:first-child{margin-top:0}
.article-body p{margin:0 0 1.2em}
.article-body h2{
  font-family:var(--serif);font-size:26px;line-height:1.45;font-weight:700;
  color:var(--t-1);margin:2em 0 .8em;padding-left:16px;
  border-left:3px solid var(--accent);
}
.article-body h3{
  font-family:var(--serif);font-size:20px;line-height:1.55;font-weight:700;
  color:var(--t-1);margin:1.7em 0 .6em;
}
.article-body h4{font-size:17px;line-height:1.6;color:var(--t-1);margin:1.4em 0 .5em}
.article-body ul,.article-body ol{padding-left:1.4em;margin:0 0 1.2em}
.article-body li{margin-bottom:8px}
.article-body li::marker{color:var(--ink-600)}
.article-body a{color:var(--ink-600);text-decoration:underline;text-underline-offset:3px;word-break:break-all}
.article-body a:hover{color:var(--ink-800)}
.article-body strong{color:var(--t-1);font-weight:600}
.article-body blockquote{
  margin:1.6em 0;padding:18px 22px;
  background:var(--surface);border-left:3px solid var(--ink-600);border-radius:0 var(--r-card) var(--r-card) 0;
  color:var(--t-2);font-size:16px;
}
.article-body blockquote p:last-child{margin-bottom:0}
.article-body img{border-radius:var(--r-card);margin:1.4em 0;height:auto}
.article-body figure{margin:1.4em 0}
.article-body figcaption{font-size:13px;color:var(--t-3);margin-top:10px;line-height:1.7}
.article-body table{
  width:100%;border-collapse:collapse;margin:1.6em 0;font-size:15px;
  border:1px solid var(--line);display:block;overflow-x:auto;white-space:nowrap;
}
.article-body th,.article-body td{border:1px solid var(--line);padding:10px 14px;text-align:left;line-height:1.7}
.article-body th{background:var(--ink-100);color:var(--ink-800);font-weight:600}
.article-body hr{border:0;border-top:1px solid var(--line);margin:2em 0}
.empty-state{
  max-width:760px;margin:0 auto;padding:56px 32px;text-align:center;
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);
}
.empty-state h2{font-family:var(--serif);font-size:24px;line-height:1.4;color:var(--t-1)}
.empty-state p{margin:14px 0 24px;font-size:15px;line-height:1.85;color:var(--t-2)}

/* ---------- Related ---------- */
.section-head{
  display:flex;align-items:flex-end;justify-content:space-between;gap:24px;
  margin-bottom:28px;
}
.section-head h2{font-family:var(--serif);font-size:30px;line-height:1.3;letter-spacing:-0.01em}
.link-arrow{
  display:inline-flex;align-items:center;gap:6px;flex:none;
  font-size:14px;font-weight:500;color:var(--ink-600);
}
.link-arrow i{font-size:12px;transition:transform .18s var(--ease)}
.link-arrow:hover{color:var(--ink-800);text-decoration:underline;text-underline-offset:4px}
.link-arrow:hover i{transform:translateX(4px)}
.related{padding:72px 0 0;margin-top:72px;border-top:1px solid var(--line)}
.news-list{list-style:none;margin:0;padding:0;display:grid;gap:16px}
.news-item{
  display:grid;grid-template-columns:196px 1fr;gap:24px;align-items:center;
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);
  padding:16px;box-shadow:var(--shadow-card);
  transition:border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.news-item:hover{border-color:var(--ink-600);box-shadow:var(--shadow-hover)}
.news-thumb{
  aspect-ratio:16/10;border-radius:var(--r-card);overflow:hidden;background:var(--ink-100);
}
.news-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .35s var(--ease)}
.news-item:hover .news-thumb img{transform:scale(1.02)}
.news-body{min-width:0}
.news-body h3{
  font-family:var(--serif);font-size:18px;line-height:1.5;color:var(--t-1);
  margin:12px 0 0;font-weight:700;
}
.news-item:hover .news-body h3{color:var(--ink-800)}
.news-body p{margin-top:8px;font-size:14px;line-height:1.8;color:var(--t-2);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.news-meta{
  display:flex;align-items:center;gap:10px;margin-top:12px;
  font-size:13px;line-height:1.6;color:var(--t-3);
}
.article-foot{
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:16px;
  margin-top:36px;padding-top:24px;border-top:1px solid var(--line-soft);
}
.pager{display:flex;flex-wrap:wrap;gap:20px;font-size:14px;color:var(--t-3)}
.pager span{display:inline-flex;align-items:center;gap:6px}
.pager i{font-size:12px}

/* ---------- Footer ---------- */
.site-footer{background:var(--ink-900);padding:72px 0 28px;margin-top:96px;color:#9FB2AC}
.site-footer .logo{
  display:inline-flex;align-items:center;gap:10px;
  font-family:var(--serif);font-weight:700;font-size:18px;color:#F7F4EE;
}
.site-footer .logo:hover{color:var(--ink-100)}
.site-footer .logo-mark{width:28px;height:28px}
.foot-brand p{margin:16px 0 0;font-size:14px;line-height:1.85;color:#9FB2AC;max-width:26em}
.foot-col h4{font-size:14px;font-weight:600;color:#F7F4EE;margin:0 0 18px;letter-spacing:.02em}
.foot-col ul{list-style:none;margin:0;padding:0}
.foot-col li{margin-bottom:12px}
.foot-col a{display:inline-block;font-size:14px;line-height:1.6;color:#9FB2AC;
  transition:color .16s var(--ease),transform .16s var(--ease)}
.foot-col a:hover{color:var(--ink-100);transform:translateX(2px)}
.foot-contact{font-size:14px;line-height:2;color:#9FB2AC}
.foot-contact .mono{color:#DCE7E2;margin-bottom:2px}
.foot-bottom{
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:12px 24px;
  margin-top:56px;padding-top:24px;
  border-top:1px solid rgba(220,231,226,.14);
  font-size:13px;line-height:1.7;color:#7E8F89;
}
.foot-bottom .to-top{display:inline-flex;align-items:center;gap:6px;color:#9FB2AC}
.foot-bottom .to-top:hover{color:var(--ink-100)}
.foot-bottom .to-top i{font-size:11px}

/* ---------- Reveal ---------- */
.reveal{opacity:0;transform:translateY(12px);transition:opacity .28s var(--ease),transform .28s var(--ease)}
.reveal.is-in{opacity:1;transform:none}

/* ---------- Responsive ---------- */
@media (max-width:1100px){
  .nav-links{display:none}
  .cmd-search{display:none}
  .link-quiet{display:none}
  .icon-btn{display:inline-flex}
  .header-actions .btn-sm{display:none}
}
@media (max-width:1024px){
  .wrap{padding:0 32px}
  .section-head h2{font-size:26px}
  .related{margin-top:56px;padding-top:56px}
  .article-body{font-size:16px}
}
@media (max-width:768px){
  .news-item{grid-template-columns:150px 1fr;gap:16px}
  .news-body h3{font-size:16px;margin-top:8px}
  .news-body p{-webkit-line-clamp:2}
  .article-body h2{font-size:22px}
  .article-body h3{font-size:18px}
}
@media (max-width:640px){
  .wrap{padding:0 20px}
  .header-inner{height:60px}
  .site-header.is-stuck .header-inner{height:56px}
  .logo{font-size:17px}
  .crumbs{padding-top:18px}
  .article-head{padding-top:16px}
  .article-meta{font-size:12px;gap:8px 10px}
  .article-layout{padding-top:28px}
  .article-body{font-size:15px;line-height:1.9}
  .article-body h2{font-size:20px;padding-left:12px;border-left-width:3px}
  .article-body h3{font-size:17px}
  .article-body blockquote{padding:16px 18px;font-size:15px}
  .related{margin-top:48px;padding-top:48px;border-top:1px solid var(--line)}
  .section-head{flex-direction:column;align-items:flex-start;gap:10px;margin-bottom:20px}
  .news-item{grid-template-columns:1fr;padding:14px}
  .news-thumb{aspect-ratio:16/9}
  .news-body h3{font-size:17px;-webkit-line-clamp:2;display:-webkit-box;-webkit-box-orient:vertical;overflow:hidden}
  .news-body p{font-size:14px}
  .article-foot{flex-direction:column;align-items:flex-start}
  .site-footer{padding:48px 0 24px;margin-top:56px}
  .foot-bottom{margin-top:36px;flex-direction:column;align-items:flex-start;gap:10px}
  .search-sheet{padding:56px 16px 16px}
  .empty-state{padding:40px 20px}
}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  .reveal{opacity:1;transform:none;transition:none}
  *{animation-duration:.001ms !important;transition-duration:.001ms !important}
}

/* roulang page: category1 */
:root{
  --ink-900:#123B34;
  --ink-700:#1E5C50;
  --ink-100:#DCE7E2;
  --amber:#C05A2B;
  --amber-d:#A34A22;
  --bg:#F7F4EE;
  --card:#FFFFFF;
  --dark:#0E2A25;
  --line:#E3DCD0;
  --line-2:#EFEAE0;
  --t1:#1A1D1B;
  --t2:#4E5A55;
  --t3:#8A938E;
  --r-card:4px;
  --r-btn:3px;
  --sh-card:0 1px 0 #EFEAE0;
  --sh-hover:0 8px 24px rgba(18,59,52,.08);
  --serif:"Noto Serif SC","Songti SC","SimSun",serif;
  --sans:"Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,sans-serif;
  --mono:"IBM Plex Mono","Inter",ui-monospace,Menlo,monospace;
  --sp-1:4px; --sp-2:8px; --sp-3:12px; --sp-4:16px; --sp-5:24px;
  --sp-6:32px; --sp-7:48px; --sp-8:64px; --sp-9:96px; --sp-10:120px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg);
  color:var(--t2);
  font-family:var(--sans);
  font-size:16px;
  line-height:1.9;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
img{max-width:100%;display:block;border:0;}
a{color:var(--ink-700);text-decoration:none;transition:color .16s ease,background-color .16s ease,transform .16s ease,border-color .16s ease;}
a:hover{color:var(--ink-900);}
h1,h2,h3,h4{font-family:var(--serif);color:var(--t1);margin:0;font-weight:700;}
p{margin:0;}
ul,ol{margin:0;padding:0;list-style:none;}
button{font-family:inherit;}
:focus-visible{outline:2px solid var(--amber);outline-offset:2px;border-radius:2px;}
.wrap{max-width:1200px;margin:0 auto;padding:0 48px;}
.grid-x.grid-margin-x{margin-left:-12px;margin-right:-12px;}
.grid-x.grid-margin-x>.cell{padding-left:12px;padding-right:12px;}
.mono{font-family:var(--mono);font-variant-numeric:tabular-nums;}
section[id],article[id],div[id]{scroll-margin-top:96px;}

/* ---------- Header ---------- */
.site-header{
  position:sticky;top:0;z-index:70;
  background:var(--bg);
  border-bottom:1px solid transparent;
  transition:border-color .18s ease,box-shadow .18s ease;
}
.site-header.is-scrolled{border-bottom-color:var(--line);}
.nav-wrap{
  display:flex;align-items:center;gap:20px;
  height:64px;transition:height .18s ease;
}
.site-header.is-scrolled .nav-wrap{height:56px;}
.logo{
  display:inline-flex;align-items:center;gap:9px;
  font-family:var(--serif);font-weight:700;font-size:17px;
  color:var(--ink-900);letter-spacing:-0.01em;white-space:nowrap;
}
.logo:hover{color:var(--ink-900);}
.logo-mark{width:26px;height:26px;flex:none;}
.nav-links{display:flex;align-items:center;gap:2px;}
.nav-links a{
  position:relative;display:inline-flex;align-items:center;
  height:36px;padding:0 12px;border-radius:3px;
  font-size:14.5px;color:var(--t2);white-space:nowrap;
}
.nav-links a:hover{background:var(--ink-100);color:var(--ink-900);}
.nav-links a.is-active{color:var(--ink-900);font-weight:500;}
.nav-links a.is-active::after{
  content:"";position:absolute;left:12px;right:12px;bottom:-2px;
  height:2px;background:var(--amber);border-radius:2px;
}
.nav-right{margin-left:auto;display:flex;align-items:center;gap:10px;}
.cmd-search{
  display:flex;align-items:center;gap:8px;
  height:36px;width:210px;padding:0 10px;
  background:var(--card);border:1px solid var(--line);border-radius:3px;
  transition:border-color .16s ease;
}
.cmd-search:focus-within{border-color:var(--ink-700);}
.cmd-search i{color:var(--t3);font-size:12px;}
.cmd-search input{
  flex:1;min-width:0;border:0;outline:none;background:transparent;
  font-family:var(--sans);font-size:13.5px;color:var(--t1);
}
.cmd-search input::placeholder{color:var(--t3);}
.kbd{
  font-family:var(--mono);font-size:11px;color:var(--t3);
  border:1px solid var(--line-2);border-radius:3px;padding:0 5px;line-height:17px;flex:none;
}
.nav-login{font-size:14px;color:var(--t2);padding:6px 4px;}
.nav-login:hover{color:var(--ink-900);}
.icon-btn{
  display:none;align-items:center;justify-content:center;
  width:40px;height:40px;border:1px solid var(--line);border-radius:3px;
  background:var(--card);color:var(--ink-900);cursor:pointer;
  transition:border-color .16s ease,background-color .16s ease;
}
.icon-btn:hover{border-color:var(--ink-700);background:var(--ink-100);}

/* ---------- Buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 26px;border-radius:var(--r-btn);
  font-size:14.5px;font-weight:500;font-family:var(--sans);
  border:1px solid transparent;cursor:pointer;
  transition:background-color .16s ease,color .16s ease,transform .16s ease,border-color .16s ease;
}
.btn-primary{background:var(--ink-900);color:#F7F4EE;}
.btn-primary:hover{background:var(--dark);color:#F7F4EE;transform:translateY(-1px);}
.btn-ghost{background:transparent;border-color:var(--ink-900);color:var(--ink-900);}
.btn-ghost:hover{background:var(--ink-100);color:var(--ink-900);}
.btn-sm{height:36px;padding:0 16px;font-size:13.5px;}
.btn-light{background:#F7F4EE;color:var(--ink-900);border-color:#F7F4EE;}
.btn-light:hover{background:#FFFFFF;color:var(--ink-900);transform:translateY(-1px);}
.btn-outline-light{background:transparent;border-color:rgba(220,231,226,.5);color:#DCE7E2;}
.btn-outline-light:hover{background:rgba(220,231,226,.12);color:#FFFFFF;border-color:#DCE7E2;}
.link-arrow{
  display:inline-flex;align-items:center;gap:6px;
  font-size:14px;color:var(--ink-700);font-weight:500;
}
.link-arrow i{font-size:11px;transition:transform .18s ease;}
.link-arrow:hover{color:var(--ink-900);text-decoration:underline;text-underline-offset:4px;}
.link-arrow:hover i{transform:translateX(4px);}

/* ---------- Breadcrumb ---------- */
.crumbs{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  padding:22px 0 0;font-size:13px;color:var(--t3);
}
.crumbs a{color:var(--t3);}
.crumbs a:hover{color:var(--ink-700);}
.crumbs .sep{color:#C9C2B4;}
.crumbs .current{color:var(--t1);}

/* ---------- Page head ---------- */
.page-head{padding:26px 0 60px;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12px;letter-spacing:.14em;color:var(--ink-700);
  font-family:var(--mono);
}
.eyebrow::before{content:"";width:22px;height:1px;background:var(--amber);}
.page-head h1{
  margin-top:14px;
  font-size:clamp(30px,4.2vw,50px);
  line-height:1.18;letter-spacing:-0.01em;max-width:14em;
}
.page-head .lead{
  margin-top:18px;max-width:600px;
  font-size:16px;line-height:1.85;color:var(--t2);
}
.head-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px;}
.head-note{
  margin-top:16px;font-size:13px;color:var(--t3);
  display:inline-flex;align-items:center;gap:8px;
}
.head-note i{color:var(--ink-700);font-size:12px;}

.side-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
  box-shadow:var(--sh-card);overflow:hidden;
  transition:box-shadow .2s ease,border-color .2s ease;
}
.side-card:hover{border-color:var(--ink-700);box-shadow:var(--sh-hover);}
.side-card img{width:100%;aspect-ratio:16/10;object-fit:cover;}
.side-card-body{padding:20px 22px 22px;}
.side-card-title{
  font-family:var(--mono);font-size:11.5px;letter-spacing:.12em;
  color:var(--t3);margin-bottom:6px;
}
.spec-list li{
  display:flex;align-items:baseline;justify-content:space-between;gap:14px;
  padding:11px 0;border-bottom:1px solid var(--line-2);font-size:14px;
}
.spec-list li:last-child{border-bottom:0;padding-bottom:0;}
.spec-list .k{color:var(--t3);}
.spec-list .v{font-family:var(--mono);font-weight:500;color:var(--ink-900);}
.side-card-foot{
  margin-top:14px;padding-top:14px;border-top:1px solid var(--line-2);
  font-size:13px;color:var(--t3);line-height:1.7;
}

/* ---------- TOC ---------- */
.layout{padding-bottom:var(--sp-9);}
.toc{position:sticky;top:88px;}
.toc-title{
  font-family:var(--sans);font-size:12px;font-weight:500;
  letter-spacing:.1em;color:var(--t3);margin-bottom:10px;
}
.toc a{
  display:block;padding:9px 0 9px 14px;
  border-left:2px solid transparent;
  font-size:14.5px;color:var(--t2);line-height:1.6;
  transition:color .16s ease,border-color .16s ease;
}
.toc a:hover{color:var(--ink-900);}
.toc a.is-current{color:var(--ink-900);border-left-color:var(--amber);font-weight:500;}

/* ---------- Groups ---------- */
.group{margin-bottom:var(--sp-8);}
.group:last-child{margin-bottom:0;}
.group-head h2{font-size:clamp(24px,2.6vw,32px);line-height:1.28;letter-spacing:-0.01em;}
.group-lead{margin-top:12px;max-width:640px;font-size:15.5px;line-height:1.85;}
.entry-list{margin-top:24px;border-top:1px solid var(--line);}
.entry{
  display:flex;align-items:flex-start;gap:18px;
  padding:20px 10px 20px 4px;
  border-bottom:1px solid var(--line-2);
  transition:background-color .16s ease;
}
.entry:hover{background:rgba(220,231,226,.42);}
.entry-idx{
  flex:none;width:32px;padding-top:1px;
  font-family:var(--mono);font-size:12.5px;color:var(--t3);
  font-variant-numeric:tabular-nums;
}
.entry-body{flex:1;min-width:0;}
.entry-body h3{
  font-family:var(--sans);font-size:16.5px;font-weight:600;
  color:var(--t1);line-height:1.5;
}
.entry-body p{margin-top:5px;font-size:14.5px;line-height:1.8;color:var(--t2);max-width:640px;}
.entry-arrow{
  flex:none;margin-left:auto;padding-top:4px;
  color:var(--t3);font-size:12px;transition:transform .18s ease,color .18s ease;
}
.entry:hover .entry-arrow{transform:translateX(4px);color:var(--amber);}

/* ---------- FAQ ---------- */
.faq-block{padding-top:8px;}
.faq{max-width:820px;border-top:1px solid var(--line);margin-top:24px;}
.faq-item{border-bottom:1px solid var(--line);}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:22px 0;background:none;border:0;cursor:pointer;text-align:left;
  font-family:var(--sans);font-size:17px;font-weight:600;color:var(--t1);line-height:1.6;
  transition:color .16s ease;
}
.faq-q:hover{color:var(--ink-700);}
.faq-q .ico{
  flex:none;width:22px;height:22px;display:inline-flex;align-items:center;justify-content:center;
  color:var(--ink-700);font-size:12px;transition:transform .18s ease;
}
.faq-item.is-open .faq-q .ico{transform:rotate(180deg);}
.faq-a{max-height:0;overflow:hidden;transition:max-height .28s ease;}
.faq-item.is-open .faq-a{max-height:420px;}
.faq-a p{padding:0 0 22px;font-size:15px;line-height:1.85;color:var(--t2);max-width:720px;}

/* ---------- CTA band ---------- */
.cta-band{
  position:relative;overflow:hidden;border-radius:var(--r-card);
  background-color:var(--dark);
  background-image:url("/assets/images/backpic/back-2.webp");
  background-size:cover;background-position:center;
  padding:56px 48px;
}
.cta-band::before{
  content:"";position:absolute;inset:0;
  background:linear-gradient(100deg,rgba(14,42,37,.94) 0%,rgba(14,42,37,.86) 55%,rgba(14,42,37,.66) 100%);
}
.cta-inner{
  position:relative;z-index:1;
  display:grid;grid-template-columns:1.25fr .75fr;gap:40px;align-items:center;
}
.cta-inner h2{color:#F7F4EE;font-size:clamp(24px,2.6vw,32px);line-height:1.32;}
.cta-inner p{margin-top:14px;color:rgba(220,231,226,.78);font-size:15px;line-height:1.85;max-width:520px;}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px;justify-content:flex-end;}
.cta-meta{
  margin-top:22px;display:flex;flex-wrap:wrap;gap:24px;
  font-family:var(--mono);font-size:13px;color:rgba(220,231,226,.62);
}
.cta-meta span{display:inline-flex;align-items:center;gap:7px;}
.cta-meta i{color:var(--amber);font-size:11px;}

/* ---------- Footer ---------- */
.site-footer{background:var(--dark);color:rgba(220,231,226,.75);padding-top:72px;margin-top:var(--sp-9);}
.site-footer .logo{color:#F7F4EE;font-size:17px;}
.site-footer .logo:hover{color:#F7F4EE;}
.foot-brand p{
  margin-top:16px;max-width:300px;
  font-size:14px;line-height:1.85;color:rgba(220,231,226,.66);
}
.foot-col h4{
  font-family:var(--sans);font-size:14px;font-weight:500;
  color:#F7F4EE;margin-bottom:14px;letter-spacing:.02em;
}
.foot-col ul li a{
  display:inline-block;padding:5px 0;font-size:14px;
  color:rgba(220,231,226,.7);transition:color .16s ease,transform .16s ease;
}
.foot-col ul li a:hover{color:#DCE7E2;transform:translateX(2px);}
.foot-contact{font-size:14px;line-height:2.1;color:rgba(220,231,226,.72);}
.foot-contact .mono{font-size:14px;color:rgba(220,231,226,.86);}
.foot-bottom{
  margin-top:52px;padding:22px 0 40px;
  border-top:1px solid rgba(220,231,226,.16);
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:14px;
  font-size:13px;color:rgba(220,231,226,.56);
}
.to-top{display:inline-flex;align-items:center;gap:7px;color:#DCE7E2;font-size:13px;}
.to-top:hover{color:#FFFFFF;}
.to-top i{font-size:11px;}

/* ---------- Mobile drawer & search layer ---------- */
.drawer{
  position:fixed;inset:0;z-index:90;background:var(--bg);
  display:flex;flex-direction:column;
  opacity:0;visibility:hidden;transform:translateY(-8px);
  transition:opacity .2s ease,transform .2s ease,visibility .2s ease;
}
.drawer.is-open{opacity:1;visibility:visible;transform:none;}
.drawer-head{
  height:64px;display:flex;align-items:center;justify-content:space-between;
  padding:0 20px;border-bottom:1px solid var(--line);flex:none;
}
.drawer-nav{padding:8px 20px;display:flex;flex-direction:column;overflow-y:auto;}
.drawer-nav a{
  font-size:18px;color:var(--t1);padding:15px 0;
  border-bottom:1px solid var(--line-2);
}
.drawer-nav a.is-active{color:var(--ink-900);font-weight:600;}
.drawer-foot{margin-top:auto;padding:20px;border-top:1px solid var(--line);flex:none;}
.drawer-foot .btn{width:100%;}
.search-layer{
  position:fixed;inset:0;z-index:95;
  background:rgba(14,42,37,.4);
  display:flex;justify-content:center;align-items:flex-start;
  padding:112px 20px 0;
  opacity:0;visibility:hidden;transition:opacity .18s ease,visibility .18s ease;
}
.search-layer.is-open{opacity:1;visibility:visible;}
.search-box{
  width:100%;max-width:580px;background:var(--card);
  border:1px solid var(--line);border-radius:var(--r-card);
  box-shadow:0 24px 60px rgba(18,59,52,.2);
  display:flex;align-items:center;gap:12px;padding:8px 14px;
}
.search-box i{color:var(--t3);font-size:14px;}
.search-box input{
  flex:1;min-width:0;height:46px;border:0;outline:none;background:transparent;
  font-family:var(--sans);font-size:16px;color:var(--t1);
}
.search-hint{font-size:12px;color:var(--t3);font-family:var(--mono);}

/* ---------- Reveal ---------- */
.reveal{opacity:0;transform:translateY(12px);transition:opacity .28s cubic-bezier(.2,.7,.2,1),transform .28s cubic-bezier(.2,.7,.2,1);}
.reveal.is-in{opacity:1;transform:none;}

/* ---------- Responsive ---------- */
@media (max-width:1120px){
  .cmd-search{display:none;}
  .search-toggle{display:inline-flex;}
}
@media (max-width:1023px){
  .wrap{padding:0 32px;}
  .nav-links{display:none;}
  .nav-login{display:none;}
  .nav-burger{display:inline-flex;}
  .page-head{padding:20px 0 40px;}
  .page-head h1{max-width:none;}
  .side-card{margin-top:32px;}
  .layout{padding-bottom:72px;}
  .toc{
    position:static;display:flex;gap:8px;overflow-x:auto;
    padding-bottom:14px;margin-bottom:32px;
    border-bottom:1px solid var(--line);
    -webkit-overflow-scrolling:touch;
  }
  .toc-title{display:none;}
  .toc a{
    flex:none;padding:7px 14px;border:1px solid var(--line);border-radius:999px;
    font-size:13.5px;background:var(--card);white-space:nowrap;
  }
  .toc a.is-current{
    background:var(--ink-100);border-color:var(--ink-100);
    color:var(--ink-900);font-weight:500;
  }
  .cta-band{padding:44px 32px;}
  .cta-inner{grid-template-columns:1fr;gap:28px;}
  .cta-actions{justify-content:flex-start;}
  .site-footer{padding-top:56px;margin-top:72px;}
  .group{margin-bottom:56px;}
}
@media (max-width:639px){
  body{font-size:15px;}
  .wrap{padding:0 20px;}
  .nav-wrap{height:60px;gap:12px;}
  .site-header.is-scrolled .nav-wrap{height:56px;}
  .logo{font-size:16px;}
  .page-head h1{font-size:clamp(26px,7.4vw,34px);line-height:1.25;}
  .page-head .lead{font-size:15px;}
  .head-actions{gap:10px;}
  .head-actions .btn{flex:1 1 100%;height:46px;}
  .entry{padding:18px 6px 18px 0;gap:12px;}
  .entry-idx{width:24px;font-size:12px;}
  .entry-body h3{font-size:15.5px;}
  .entry-body p{font-size:14px;}
  .faq-q{font-size:16px;padding:20px 0;}
  .cta-band{padding:36px 22px;}
  .cta-inner h2{font-size:23px;}
  .cta-meta{gap:14px;font-size:12px;}
  .cta-actions .btn{flex:1 1 100%;}
  .site-footer{padding-top:48px;margin-top:56px;}
  .foot-bottom{flex-direction:column;align-items:flex-start;gap:10px;}
  .crumbs{font-size:12.5px;padding-top:16px;}
  .group-lead{font-size:14.5px;}
}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto;}
  *,*::before,*::after{transition:none!important;animation:none!important;}
  .reveal{opacity:1;transform:none;}
}

/* roulang page: category2 */
:root{
  --ink:#123B34;
  --ink-mid:#1E5C50;
  --ink-soft:#DCE7E2;
  --amber:#C05A2B;
  --amber-d:#A34A22;
  --bg:#F7F4EE;
  --card:#FFFFFF;
  --dark:#0E2A25;
  --line:#E3DCD0;
  --line-2:#EFEAE0;
  --t1:#1A1D1B;
  --t2:#4E5A55;
  --t3:#8A938E;
  --r-card:4px;
  --r-btn:3px;
  --sh-1:0 1px 0 #EFEAE0;
  --sh-2:0 8px 24px rgba(18,59,52,.08);
  --nav-h:64px;
  --ease:cubic-bezier(.2,.7,.2,1);
  --serif:"Noto Serif SC","Songti SC",Georgia,serif;
  --sans:"Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,sans-serif;
  --mono:"IBM Plex Mono","SFMono-Regular",Consolas,monospace;
}

*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--sans);
  font-size:16px;
  line-height:1.9;
  color:var(--t2);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
h1,h2,h3,h4,h5{
  font-family:var(--serif);
  color:var(--t1);
  font-weight:700;
  letter-spacing:-0.01em;
  margin:0;
  line-height:1.25;
}
p{margin:0 0 16px;}
p:last-child{margin-bottom:0;}
a{color:var(--ink-mid);text-decoration:none;transition:color .16s var(--ease);}
a:hover{color:var(--ink);}
ul,ol{margin:0;padding:0;list-style:none;}
img{max-width:100%;height:auto;display:block;border-radius:var(--r-card);}
button{font-family:inherit;font-size:inherit;cursor:pointer;border:0;background:none;color:inherit;}
input,textarea,select{font-family:inherit;font-size:inherit;}
:focus-visible{outline:2px solid var(--amber);outline-offset:2px;}
.mono{font-family:var(--mono);font-variant-numeric:tabular-nums;}

.wrap{
  width:100%;
  max-width:1200px;
  margin:0 auto;
  padding:0 48px;
}
.grid-tight{margin-left:-12px !important;margin-right:-12px !important;}
.grid-tight > .cell{padding-left:12px !important;padding-right:12px !important;}

/* ============ buttons ============ */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  min-height:46px;
  padding:0 26px;
  border-radius:var(--r-btn);
  font-size:15px;
  font-weight:500;
  line-height:1.2;
  border:1px solid transparent;
  transition:background .16s var(--ease),color .16s var(--ease),transform .16s var(--ease),border-color .16s var(--ease);
  white-space:nowrap;
}
.btn i{font-size:13px;transition:transform .16s var(--ease);}
.btn-primary{background:var(--ink);color:#F7F4EE;}
.btn-primary:hover{background:var(--dark);color:#FFF;transform:translateY(-1px);}
.btn-ghost{background:transparent;border-color:var(--ink);color:var(--ink);}
.btn-ghost:hover{background:var(--ink-soft);color:var(--ink);transform:translateY(-1px);}
.btn-sm{min-height:36px;padding:0 16px;font-size:13.5px;}

.link-arrow{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:14.5px;
  color:var(--ink-mid);
  border-bottom:1px solid transparent;
  padding-bottom:2px;
  transition:color .16s var(--ease),border-color .16s var(--ease);
}
.link-arrow i{font-size:12px;transition:transform .16s var(--ease);}
.link-arrow:hover{color:var(--ink);border-bottom-color:var(--ink-mid);}
.link-arrow:hover i{transform:translateX(4px);}

/* ============ badge / eyebrow ============ */
.badge{
  display:inline-flex;
  align-items:center;
  gap:6px;
  font-size:12px;
  line-height:1.6;
  padding:3px 10px;
  border-radius:999px;
  background:var(--ink-soft);
  color:var(--ink);
  font-weight:500;
  white-space:nowrap;
}
.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:10px;
  font-size:12px;
  letter-spacing:.14em;
  color:var(--amber);
  font-weight:500;
  margin-bottom:18px;
}
.eyebrow::before{
  content:"";
  width:22px;
  height:1px;
  background:var(--amber);
  display:inline-block;
}

/* ============ header ============ */
.site-header{
  position:sticky;
  top:0;
  z-index:100;
  background:var(--bg);
  border-bottom:1px solid transparent;
  transition:border-color .18s var(--ease);
}
.site-header.is-scrolled{border-bottom-color:var(--line);}
.nav-wrap{
  display:flex;
  align-items:center;
  gap:28px;
  height:var(--nav-h);
  transition:height .18s var(--ease);
}
.site-header.is-scrolled .nav-wrap{height:56px;}

.logo{
  display:inline-flex;
  align-items:center;
  gap:10px;
  font-family:var(--serif);
  font-weight:700;
  font-size:19px;
  color:var(--ink);
  letter-spacing:-0.01em;
  white-space:nowrap;
  flex-shrink:0;
}
.logo:hover{color:var(--ink);}
.logo-mark{width:28px;height:28px;flex-shrink:0;}

.nav-links{
  display:flex;
  align-items:center;
  gap:2px;
  min-width:0;
}
.nav-links a{
  position:relative;
  display:inline-block;
  font-size:14.5px;
  line-height:1.6;
  color:var(--t2);
  padding:8px 11px;
  border-radius:var(--r-btn);
  white-space:nowrap;
  transition:background .16s var(--ease),color .16s var(--ease);
}
.nav-links a:hover{color:var(--ink);background:var(--ink-soft);}
.nav-links a.is-active{color:var(--ink);font-weight:500;}
.nav-links a.is-active::after{
  content:"";
  position:absolute;
  left:11px;
  right:11px;
  bottom:1px;
  height:2px;
  background:var(--amber);
  border-radius:2px;
}

.nav-tools{
  margin-left:auto;
  display:flex;
  align-items:center;
  gap:12px;
  flex-shrink:0;
}
.cmd-search{
  display:flex;
  align-items:center;
  height:36px;
  width:224px;
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--r-btn);
  padding:0 8px 0 10px;
  transition:border-color .16s var(--ease);
}
.cmd-search:focus-within{border-color:var(--ink-mid);}
.cmd-search .fa-magnifying-glass{font-size:12px;color:var(--t3);}
.cmd-search input{
  flex:1 1 auto;
  min-width:0;
  border:0;
  background:transparent;
  height:100%;
  padding:0 8px;
  font-size:13.5px;
  color:var(--t1);
}
.cmd-search input:focus{outline:none;}
.cmd-search input::placeholder{color:var(--t3);}
.kbd{
  font-family:var(--mono);
  font-size:11px;
  line-height:1;
  color:var(--t3);
  border:1px solid var(--line);
  border-radius:3px;
  padding:4px 6px;
  background:var(--bg);
  flex-shrink:0;
}
.nav-login{
  font-size:14.5px;
  color:var(--t2);
  padding:6px 4px;
}
.nav-login:hover{color:var(--ink);}
.icon-btn{
  display:none;
  align-items:center;
  justify-content:center;
  width:44px;
  height:44px;
  border-radius:var(--r-btn);
  color:var(--ink);
  font-size:16px;
  transition:background .16s var(--ease);
}
.icon-btn:hover{background:var(--ink-soft);}

/* drawer & search overlay */
.drawer{
  position:fixed;
  left:0;right:0;top:var(--nav-h);bottom:0;
  background:var(--bg);
  z-index:99;
  padding:16px 20px 0;
  display:none;
  flex-direction:column;
  overflow-y:auto;
}
.drawer.is-open{display:flex;}
.drawer nav{display:flex;flex-direction:column;}
.drawer nav a{
  font-size:18px;
  color:var(--t1);
  padding:16px 4px;
  border-bottom:1px solid var(--line-2);
}
.drawer nav a.is-active{color:var(--ink);font-weight:500;}
.drawer-foot{
  margin-top:auto;
  padding:24px 0 28px;
  display:flex;
  flex-direction:column;
  gap:12px;
}
.drawer-foot .btn{width:100%;}

.search-overlay{
  position:fixed;
  inset:0;
  z-index:130;
  display:none;
  background:rgba(14,42,37,.55);
  padding:80px 20px;
  overflow-y:auto;
}
.search-overlay.is-open{display:block;}
.search-panel{
  width:min(640px,100%);
  margin:0 auto;
  background:var(--card);
  border-radius:var(--r-card);
  padding:22px;
  box-shadow:var(--sh-2);
}
.search-panel label{
  display:block;
  font-size:13px;
  color:var(--t3);
  margin-bottom:10px;
}
.search-field{
  display:flex;
  align-items:center;
  gap:10px;
  height:48px;
  border:1px solid var(--line);
  border-radius:var(--r-btn);
  padding:0 14px;
}
.search-field:focus-within{border-color:var(--ink-mid);}
.search-field input{flex:1 1 auto;min-width:0;border:0;background:transparent;font-size:15px;color:var(--t1);}
.search-field input:focus{outline:none;}
.search-hint{font-size:13px;color:var(--t3);margin-top:14px;display:flex;flex-wrap:wrap;gap:8px;}
.search-hint span{
  border:1px solid var(--line);
  border-radius:999px;
  padding:3px 10px;
  font-size:12.5px;
  color:var(--t2);
}

/* ============ breadcrumb ============ */
.breadcrumb{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:8px;
  font-size:13px;
  color:var(--t3);
  line-height:1.7;
}
.breadcrumb a{color:var(--t3);}
.breadcrumb a:hover{color:var(--ink-mid);}
.breadcrumb .sep{color:var(--line);}
.breadcrumb .cur{color:var(--t1);}

/* ============ section base ============ */
.section{padding:96px 0;}
.section-tight{padding:72px 0;}
.sec-head{margin-bottom:32px;max-width:760px;}
.sec-head h2{font-size:clamp(25px,3.1vw,36px);margin-bottom:14px;}
.sec-head p{font-size:16px;color:var(--t2);max-width:680px;}
.divider{height:1px;background:var(--line);border:0;margin:0;}

/* ============ category head ============ */
.cat-head{
  padding:44px 0 72px;
  border-bottom:1px solid var(--line);
}
.cat-head .breadcrumb{margin-bottom:30px;}
.cat-head h1{
  font-size:clamp(30px,4.4vw,50px);
  line-height:1.18;
  letter-spacing:-0.01em;
  margin-bottom:22px;
  max-width:15em;
}
.cat-lede{
  font-size:17px;
  line-height:1.95;
  color:var(--t2);
  max-width:620px;
}
.cat-actions{
  display:flex;
  flex-wrap:wrap;
  gap:14px;
  margin-top:32px;
}
.cat-note{
  font-size:13px;
  color:var(--t3);
  margin-top:16px;
  display:flex;
  align-items:center;
  gap:8px;
}
.cat-note i{color:var(--ink-mid);font-size:12px;}

.snap-card{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  padding:26px 24px;
  box-shadow:var(--sh-1);
}
.snap-card h2{
  font-size:15px;
  font-family:var(--sans);
  font-weight:500;
  color:var(--t3);
  letter-spacing:.04em;
  margin-bottom:6px;
}
.snap-list{margin-top:8px;}
.snap-list li{
  display:flex;
  align-items:baseline;
  justify-content:space-between;
  gap:16px;
  padding:16px 0;
  border-bottom:1px solid var(--line-2);
}
.snap-list li:last-child{border-bottom:0;padding-bottom:0;}
.snap-list .k{font-size:14px;color:var(--t2);}
.snap-list .v{
  font-family:var(--mono);
  font-variant-numeric:tabular-nums;
  font-size:15px;
  color:var(--ink);
  font-weight:500;
  text-align:right;
  white-space:nowrap;
}
.snap-foot{
  margin-top:20px;
  padding-top:18px;
  border-top:1px solid var(--line-2);
  font-size:13px;
  color:var(--t3);
  line-height:1.75;
}

/* ============ split feature ============ */
.split-figure{
  position:relative;
  border-radius:var(--r-card);
  overflow:hidden;
  border:1px solid var(--line);
  background:var(--card);
}
.split-figure img{
  width:100%;
  aspect-ratio:4/3;
  object-fit:cover;
  border-radius:0;
}
.split-figure .fig-tag{
  position:absolute;
  left:16px;
  bottom:16px;
  background:rgba(247,244,238,.94);
  border-radius:var(--r-badge);
  padding:5px 12px;
  font-size:12px;
  color:var(--ink);
  font-weight:500;
}
.split-body h2{font-size:clamp(24px,2.9vw,34px);margin-bottom:16px;}
.split-body > p{font-size:16px;max-width:560px;}
.point-list{margin-top:26px;}
.point-list li{
  display:flex;
  gap:14px;
  padding:16px 0;
  border-top:1px solid var(--line-2);
  font-size:15px;
  line-height:1.8;
}
.point-list li:last-child{border-bottom:1px solid var(--line-2);}
.point-list .idx{
  font-family:var(--mono);
  font-variant-numeric:tabular-nums;
  font-size:12.5px;
  color:var(--amber);
  padding-top:4px;
  flex-shrink:0;
}
.point-list strong{
  display:block;
  font-family:var(--serif);
  font-size:16.5px;
  color:var(--t1);
  font-weight:700;
  margin-bottom:2px;
}
.split-body .link-arrow{margin-top:26px;}

/* ============ definition list ============ */
.def-panel{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  padding:8px 32px;
  box-shadow:var(--sh-1);
}
.def-grid{
  display:grid;
  grid-template-columns:repeat(2,minmax(0,1fr));
  gap:0 48px;
}
.def-item{
  padding:24px 0;
  border-bottom:1px solid var(--line-2);
}
.def-item dt{
  font-size:14px;
  color:var(--t3);
  line-height:1.7;
  margin-bottom:6px;
}
.def-item dd{
  margin:0;
  font-size:16px;
  line-height:1.85;
  color:var(--t1);
}

/* ============ compare table ============ */
.table-scroll{
  overflow-x:auto;
  -webkit-overflow-scrolling:touch;
  border:1px solid var(--line);
  border-radius:var(--r-card);
  background:var(--card);
}
table.compare{
  width:100%;
  min-width:720px;
  border-collapse:collapse;
  font-size:15px;
}
table.compare caption{
  caption-side:top;
  text-align:left;
  font-size:13px;
  color:var(--t3);
  padding:14px 20px;
  border-bottom:1px solid var(--line-2);
}
table.compare th,
table.compare td{
  text-align:left;
  padding:16px 20px;
  border-bottom:1px solid var(--line-2);
  vertical-align:top;
  line-height:1.75;
}
table.compare thead th{
  background:var(--ink-soft);
  color:var(--ink);
  font-family:var(--sans);
  font-weight:500;
  font-size:13.5px;
  letter-spacing:.02em;
  border-bottom:1px solid var(--line);
  white-space:nowrap;
}
table.compare tbody tr:last-child th,
table.compare tbody tr:last-child td{border-bottom:0;}
table.compare tbody th{
  font-family:var(--sans);
  font-weight:500;
  color:var(--t1);
  font-size:14.5px;
  white-space:nowrap;
  background:#FCFAF6;
}
table.compare td.old{color:var(--t3);}
table.compare td.new{color:var(--t1);}
table.compare td.new strong{font-weight:500;color:var(--ink);}

/* ============ QA blocks ============ */
.qa-grid{
  display:grid;
  grid-template-columns:repeat(2,minmax(0,1fr));
  gap:24px;
}
.qa-item{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  padding:26px 26px 24px;
  box-shadow:var(--sh-1);
  transition:border-color .16s var(--ease),box-shadow .16s var(--ease);
}
.qa-item:hover{border-color:var(--ink-mid);box-shadow:var(--sh-2);}
.qa-item .q-mark{
  font-family:var(--mono);
  font-size:12px;
  color:var(--amber);
  display:block;
  margin-bottom:10px;
  letter-spacing:.06em;
}
.qa-item h3{
  font-size:18px;
  line-height:1.5;
  margin-bottom:10px;
}
.qa-item p{font-size:15px;line-height:1.85;color:var(--t2);}

/* ============ CTA band ============ */
.cta-band{
  background:var(--dark);
  color:#DCE7E2;
  padding:80px 0;
}
.cta-band h2{
  color:#F4F1EA;
  font-size:clamp(25px,3.1vw,36px);
  margin-bottom:16px;
  max-width:16em;
}
.cta-band p{color:#B9C9C3;font-size:16px;max-width:520px;}
.cta-contact{
  display:flex;
  flex-wrap:wrap;
  gap:28px;
  margin-top:30px;
}
.cta-contact div{display:flex;flex-direction:column;gap:4px;}
.cta-contact .lab{font-size:12px;letter-spacing:.1em;color:#8CA49C;}
.cta-contact .val{
  font-family:var(--mono);
  font-variant-numeric:tabular-nums;
  font-size:17px;
  color:#F4F1EA;
}
.cta-side{
  display:flex;
  flex-direction:column;
  align-items:flex-start;
  gap:18px;
  padding-left:24px;
  border-left:1px solid rgba(220,231,226,.18);
}
.cta-side .btn-primary{background:var(--amber);color:#FFF;}
.cta-side .btn-primary:hover{background:var(--amber-d);}
.cta-side .btn-ghost{border-color:#8CA49C;color:#DCE7E2;}
.cta-side .btn-ghost:hover{background:rgba(220,231,226,.12);color:#FFF;}
.cta-side ul{font-size:14px;line-height:2;color:#B9C9C3;padding-left:0;}
.cta-side li{display:flex;gap:10px;align-items:baseline;}
.cta-side li::before{content:"";width:5px;height:5px;border-radius:50%;background:var(--amber);flex-shrink:0;transform:translateY(-3px);}

/* ============ footer ============ */
.site-footer{
  background:var(--dark);
  color:#B9C9C3;
  padding:72px 0 0;
  font-size:14.5px;
}
.site-footer .grid-x{margin-bottom:0;}
.foot-brand .logo{color:#F4F1EA;margin-bottom:18px;}
.foot-brand .logo:hover{color:#FFF;}
.foot-brand p{font-size:14px;line-height:1.9;color:#9FB4AC;max-width:300px;}
.foot-col h4{
  font-family:var(--sans);
  font-size:14px;
  font-weight:500;
  color:#F4F1EA;
  margin-bottom:16px;
  letter-spacing:.02em;
}
.foot-col ul li{margin-bottom:10px;}
.foot-col ul li a{
  color:#9FB4AC;
  font-size:14px;
  transition:color .16s var(--ease),transform .16s var(--ease);
  display:inline-block;
}
.foot-col ul li a:hover{color:var(--ink-soft);transform:translateX(2px);}
.foot-contact{display:flex;flex-direction:column;gap:8px;font-size:14px;color:#9FB4AC;}
.foot-contact .mono{color:#DCE7E2;font-size:14.5px;}
.foot-bottom{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:16px;
  margin-top:56px;
  padding:22px 0 26px;
  border-top:1px solid rgba(220,231,226,.14);
  font-size:13px;
  color:#8CA49C;
}
.foot-bottom .to-top{
  margin-left:auto;
  display:inline-flex;
  align-items:center;
  gap:8px;
  color:#9FB4AC;
  font-size:13px;
}
.foot-bottom .to-top:hover{color:var(--ink-soft);}
.foot-bottom .to-top i{font-size:11px;}

/* ============ reveal ============ */
.reveal{opacity:0;transform:translateY(12px);transition:opacity .28s var(--ease),transform .28s var(--ease);}
.reveal.is-in{opacity:1;transform:none;}

/* ============ responsive ============ */
@media (max-width:1120px){
  .nav-links a{font-size:13.5px;padding:8px 8px;}
  .cmd-search{width:190px;}
  .nav-wrap{gap:18px;}
}
@media (max-width:1023px){
  .wrap{padding:0 32px;}
  .nav-links{display:none;}
  .cmd-search{display:none;}
  .nav-login{display:none;}
  .icon-btn{display:inline-flex;}
  .nav-tools{gap:6px;}
  .section{padding:72px 0;}
  .section-tight{padding:56px 0;}
  .cat-head{padding:32px 0 56px;}
  .cat-head h1{max-width:100%;}
  .qa-grid{grid-template-columns:1fr;}
  .cta-side{padding-left:0;border-left:0;margin-top:36px;padding-top:30px;border-top:1px solid rgba(220,231,226,.18);}
  .snap-card{margin-top:32px;}
}
@media (max-width:767px){
  .wrap{padding:0 20px;}
  body{font-size:15px;}
  .section{padding:56px 0;}
  .section-tight{padding:48px 0;}
  .cat-head h1{font-size:clamp(26px,7vw,34px);}
  .cat-lede{font-size:15.5px;}
  .def-panel{padding:4px 20px;}
  .def-grid{grid-template-columns:1fr;gap:0;}
  .split-figure img{aspect-ratio:16/10;}
  .cta-band{padding:56px 0;}
  .cta-contact{gap:20px;}
  .foot-bottom{margin-top:40px;font-size:12.5px;}
  .foot-bottom .to-top{margin-left:0;}
  .site-footer{padding-top:56px;}
  .btn{min-height:46px;width:100%;}
  .cat-actions{flex-direction:column;align-items:stretch;}
  .cta-side .btn{width:100%;}
  .point-list li{padding:14px 0;}
}
@media (max-width:519px){
  .cat-head{padding:24px 0 44px;}
  .qa-item{padding:22px 20px;}
  .snap-card{padding:22px 20px;}
  .split-body h2{font-size:23px;}
}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto;}
  *,*::before,*::after{
    animation-duration:.001ms !important;
    transition-duration:.001ms !important;
  }
  .reveal{opacity:1;transform:none;}
}

/* roulang page: category3 */
:root{
  --ink:#123B34;
  --ink-mid:#1E5C50;
  --ink-soft:#DCE7E2;
  --amber:#C05A2B;
  --amber-dark:#A34A22;
  --bg:#F7F4EE;
  --card:#FFFFFF;
  --deep:#0E2A25;
  --line:#E3DCD0;
  --line-2:#EFEAE0;
  --t1:#1A1D1B;
  --t2:#4E5A55;
  --t3:#8A938E;
  --r-card:4px;
  --r-btn:3px;
  --sh-card:0 1px 0 #EFEAE0;
  --sh-hover:0 8px 24px rgba(18,59,52,.08);
  --serif:'Noto Serif SC','Songti SC',Georgia,serif;
  --sans:'Noto Sans SC','PingFang SC','Microsoft YaHei',system-ui,sans-serif;
  --mono:'Inter','IBM Plex Mono',ui-monospace,SFMono-Regular,Menlo,monospace;
  --ease:cubic-bezier(.2,.7,.2,1);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--sans);
  font-size:16px;
  line-height:1.9;
  color:var(--t2);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4,p,ul,ol,figure{margin:0}
ul,ol{padding:0;list-style:none}
img{max-width:100%;display:block}
a{color:var(--ink-mid);text-decoration:none}
button{font-family:inherit}
table{border-collapse:collapse}
:focus-visible{outline:2px solid var(--amber);outline-offset:2px}
.skip{position:absolute;left:-9999px;top:0;background:var(--ink);color:#F7F4EE;padding:10px 16px;z-index:200}
.skip:focus{left:12px;top:12px}
.wrap{max-width:1200px;margin:0 auto;padding:0 48px}
.mono{font-family:var(--mono);font-variant-numeric:tabular-nums;letter-spacing:.01em}
.eyebrow{
  display:inline-block;
  font-family:var(--mono);
  font-size:12px;
  letter-spacing:.14em;
  color:var(--ink-mid);
  text-transform:lowercase;
  margin-bottom:16px;
}
h1,h2,h3,h4{font-family:var(--serif);color:var(--t1);font-weight:700}
h2{font-size:clamp(26px,3.1vw,36px);line-height:1.28;letter-spacing:-.01em}
h3{font-size:22px;line-height:1.45;letter-spacing:-.005em}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:var(--bg);
  border-bottom:1px solid transparent;
  transition:border-color .2s var(--ease);
}
.site-header.is-stuck{border-bottom-color:var(--line)}
.header-inner{
  display:flex;align-items:center;gap:24px;
  height:64px;
  transition:height .2s var(--ease);
}
.site-header.is-stuck .header-inner{height:56px}
.logo{
  display:inline-flex;align-items:center;gap:10px;
  font-family:var(--serif);font-weight:700;font-size:19px;letter-spacing:-.01em;
  color:var(--t1);white-space:nowrap;
}
.logo-mark{width:28px;height:28px;flex:0 0 28px}
.logo:hover{color:var(--ink-mid)}
.nav-links{display:flex;align-items:center;gap:2px;margin-left:8px}
.nav-links a{
  position:relative;
  display:inline-block;
  padding:8px 12px;
  font-size:14.5px;
  color:var(--t2);
  border-radius:3px;
  transition:color .16s var(--ease),background-color .16s var(--ease);
  white-space:nowrap;
}
.nav-links a:hover{color:var(--ink);background:var(--ink-soft)}
.nav-links a.is-active{color:var(--ink);font-weight:500}
.nav-links a.is-active::after{
  content:"";position:absolute;left:12px;right:12px;bottom:1px;height:2px;
  background:var(--amber);border-radius:2px;
}
.header-tools{display:flex;align-items:center;gap:14px;margin-left:auto}
.search-trigger{
  display:inline-flex;align-items:center;gap:10px;
  width:230px;height:36px;padding:0 12px;
  background:var(--card);
  border:1px solid var(--line);
  border-radius:3px;
  color:var(--t3);font-size:13.5px;
  cursor:pointer;
  transition:border-color .16s var(--ease),color .16s var(--ease);
}
.search-trigger:hover{border-color:var(--ink-mid);color:var(--t2)}
.search-trigger span{flex:1;text-align:left}
.search-trigger kbd{
  font-family:var(--mono);font-size:11px;color:var(--t3);
  border:1px solid var(--line);border-radius:999px;
  padding:1px 7px;background:var(--bg);
}
.link-login{font-size:14.5px;color:var(--t2);padding:6px 2px;border-radius:3px}
.link-login:hover{color:var(--ink)}
.header-mobile{display:none;align-items:center;gap:6px;margin-left:auto}
.icon-btn{
  width:44px;height:44px;display:inline-flex;align-items:center;justify-content:center;
  background:transparent;border:1px solid transparent;border-radius:3px;
  color:var(--ink);font-size:16px;cursor:pointer;
}
.icon-btn:hover{background:var(--ink-soft)}

/* buttons */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:46px;padding:0 26px;
  border:1px solid transparent;border-radius:var(--r-btn);
  font-size:15px;font-weight:500;line-height:1;
  cursor:pointer;
  transition:background-color .16s var(--ease),color .16s var(--ease),transform .16s var(--ease),border-color .16s var(--ease);
}
.btn-primary{background:var(--ink);color:#F7F4EE}
.btn-primary:hover{background:var(--deep);color:#F7F4EE;transform:translateY(-1px)}
.btn-ghost{background:transparent;border-color:var(--ink);color:var(--ink)}
.btn-ghost:hover{background:var(--ink-soft);color:var(--ink)}
.btn-sm{min-height:38px;padding:0 18px;font-size:14px}
.btn-amber{background:var(--amber);color:#FFF6EF}
.btn-amber:hover{background:var(--amber-dark);color:#FFF6EF;transform:translateY(-1px)}
.text-link{
  display:inline-flex;align-items:center;gap:8px;
  color:var(--ink-mid);font-size:14.5px;font-weight:500;
  border-bottom:1px solid transparent;
  transition:color .16s var(--ease),border-color .16s var(--ease);
}
.text-link i{transition:transform .16s var(--ease)}
.text-link:hover{color:var(--ink);border-bottom-color:var(--line)}
.text-link:hover i{transform:translateX(4px)}

/* drawer & search overlay */
.mobile-drawer{
  position:fixed;inset:0;z-index:90;
  background:var(--bg);
  display:none;
  flex-direction:column;
  padding:18px 20px 28px;
  overflow-y:auto;
}
.mobile-drawer.is-open{display:flex}
.drawer-top{display:flex;align-items:center;justify-content:space-between;padding-bottom:18px;border-bottom:1px solid var(--line)}
.drawer-links{display:flex;flex-direction:column;padding-top:12px}
.drawer-links a{
  padding:16px 4px;
  font-size:18px;color:var(--t1);
  border-bottom:1px solid var(--line-2);
}
.drawer-links a.is-active{color:var(--ink-mid);font-weight:500}
.drawer-bottom{margin-top:auto;padding-top:24px;display:grid;gap:10px}
.search-overlay{
  position:fixed;inset:0;z-index:95;
  display:none;
  background:rgba(14,42,37,.55);
  padding:12vh 20px 0;
  justify-content:center;
}
.search-overlay.is-open{display:flex}
.search-panel{
  width:100%;max-width:620px;height:max-content;
  background:var(--card);
  border:1px solid var(--line);
  border-radius:4px;
  padding:20px;
  box-shadow:0 8px 24px rgba(18,59,52,.16);
}
.search-form{display:flex;align-items:center;gap:12px;border:1px solid var(--line);border-radius:3px;padding:0 14px;height:48px}
.search-form i{color:var(--t3)}
.search-form input{
  flex:1;border:0;outline:none;background:transparent;
  font-family:var(--sans);font-size:15px;color:var(--t1);
}
.search-form input::placeholder{color:var(--t3)}
.search-close{
  border:1px solid var(--line);background:var(--bg);
  border-radius:3px;height:32px;padding:0 12px;
  font-size:13px;color:var(--t2);cursor:pointer;
}
.search-close:hover{background:var(--ink-soft);border-color:var(--ink-mid)}
.search-hint{font-size:13px;color:var(--t3);padding-top:14px}

/* ---------- page head ---------- */
.page-head{padding:56px 0 72px;border-bottom:1px solid var(--line)}
.crumb{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  font-size:13px;color:var(--t3);margin-bottom:32px;
}
.crumb a{color:var(--t3)}
.crumb a:hover{color:var(--ink-mid)}
.crumb .sep{color:var(--line)}
.crumb .current{color:var(--t1)}
.page-head h1{
  font-size:clamp(30px,4.2vw,50px);
  line-height:1.18;
  letter-spacing:-.01em;
  margin-bottom:24px;
}
.page-lead{font-size:16.5px;line-height:1.9;color:var(--t2);max-width:640px}
.page-lead + .page-lead{margin-top:12px;font-size:15px;color:var(--t3)}
.head-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:32px}
.head-card{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  box-shadow:var(--sh-card);
  overflow:hidden;
}
.head-card-img{aspect-ratio:16/10;overflow:hidden;border-bottom:1px solid var(--line-2)}
.head-card-img img{width:100%;height:100%;object-fit:cover}
.head-card-body{padding:22px 24px 24px}
.head-card-body .eyebrow{margin-bottom:12px}
.mini-stats{display:grid;gap:0}
.mini-stats li{
  display:flex;align-items:baseline;gap:12px;
  padding:11px 0;border-bottom:1px solid var(--line-2);font-size:14px;color:var(--t2);
}
.mini-stats li:last-child{border-bottom:0;padding-bottom:0}
.mini-stats b{
  font-family:var(--mono);font-variant-numeric:tabular-nums;
  font-size:19px;font-weight:600;color:var(--ink);min-width:56px;
}

/* ---------- stat band ---------- */
.statband{background:var(--deep);color:#DCE7E2;padding:52px 0}
.statband .eyebrow{color:#9DBBB2;margin-bottom:20px;display:block}
.stat-grid{display:grid;grid-template-columns:repeat(4,1fr)}
.stat-item{padding:0 28px;border-left:1px solid rgba(220,231,226,.18)}
.stat-item:first-child{border-left:0;padding-left:0}
.stat-val{
  font-family:var(--mono);font-variant-numeric:tabular-nums;
  font-size:clamp(30px,3.4vw,44px);line-height:1.1;color:#F7F4EE;font-weight:600;
}
.stat-val em{font-style:normal;font-size:14px;color:#9DBBB2;margin-left:6px;font-family:var(--sans)}
.stat-label{font-size:13px;color:#9DBBB2;margin-top:10px;line-height:1.7}

/* ---------- sections ---------- */
.section{padding:96px 0}
.section + .section{border-top:1px solid var(--line-2)}
.sec-head{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:40px;padding-bottom:24px;border-bottom:1px solid var(--line)}
.sec-head h2{max-width:620px}
.sec-head p{font-size:15px;color:var(--t3);max-width:420px}

/* timeline */
.timeline{position:relative;padding-left:44px;max-width:920px}
.timeline::before{
  content:"";position:absolute;left:7px;top:10px;bottom:10px;width:1px;background:var(--line);
}
.tl-item{position:relative;padding-bottom:52px}
.tl-item:last-child{padding-bottom:0}
.tl-item::before{
  content:"";position:absolute;left:-44px;top:9px;
  width:15px;height:15px;border-radius:50%;
  background:var(--bg);border:1px solid var(--ink-mid);
  box-sizing:border-box;
}
.tl-item.is-key::before{background:var(--amber);border-color:var(--amber)}
.tl-num{
  font-family:var(--mono);font-variant-numeric:tabular-nums;
  font-size:12px;letter-spacing:.14em;color:var(--amber);display:block;margin-bottom:6px;
}
.tl-card{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  padding:24px 28px;
  box-shadow:var(--sh-card);
  transition:border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.tl-card:hover{border-color:var(--ink-mid);box-shadow:var(--sh-hover)}
.tl-card h3{margin-bottom:10px}
.tl-card p{font-size:15px;line-height:1.9;color:var(--t2);max-width:640px}
.tl-meta{display:flex;flex-wrap:wrap;gap:8px;margin-top:16px}
.tag{
  display:inline-flex;align-items:center;
  padding:4px 10px;border-radius:999px;
  background:var(--ink-soft);color:var(--ink);
  font-size:12px;line-height:1.6;
}
.tl-img{margin-top:18px;border-radius:var(--r-card);overflow:hidden;border:1px solid var(--line-2);max-width:520px}
.tl-img img{width:100%;height:auto;object-fit:cover}

/* table */
.table-wrap{
  overflow-x:auto;
  border:1px solid var(--line);
  border-radius:var(--r-card);
  background:var(--card);
  box-shadow:var(--sh-card);
}
.spec-table{width:100%;min-width:680px;font-size:15px}
.spec-table th,.spec-table td{
  padding:15px 20px;text-align:left;vertical-align:top;
  border-bottom:1px solid var(--line-2);
}
.spec-table thead th{
  background:#F1EDE4;color:var(--t1);font-weight:500;font-size:14px;
  border-bottom:1px solid var(--line);
}
.spec-table tbody tr:last-child td{border-bottom:0}
.spec-table tbody tr:hover td{background:#FBF9F4}
.spec-table td:first-child{font-family:var(--mono);font-variant-numeric:tabular-nums;color:var(--ink);white-space:nowrap}

/* recommend cards */
.rec-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.card{
  display:flex;flex-direction:column;
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  box-shadow:var(--sh-card);
  overflow:hidden;
  transition:border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.card:hover{border-color:var(--ink-mid);box-shadow:var(--sh-hover)}
.card-img{aspect-ratio:16/10;overflow:hidden;border-bottom:1px solid var(--line-2)}
.card-img img{width:100%;height:100%;object-fit:cover;transition:transform .3s var(--ease)}
.card:hover .card-img img{transform:scale(1.02)}
.card-body{padding:24px 24px 26px;display:flex;flex-direction:column;flex:1}
.card-body h3{font-size:18px;margin:12px 0 8px}
.card-body p{font-size:14px;line-height:1.85;color:var(--t2);flex:1}
.card-body .text-link{margin-top:16px}

/* faq */
.faq{max-width:820px;border-top:1px solid var(--line)}
.faq-item{border-bottom:1px solid var(--line)}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:20px;
  padding:22px 0;background:none;border:0;cursor:pointer;
  font-size:17px;font-weight:500;color:var(--t1);text-align:left;line-height:1.6;
}
.faq-q:hover{color:var(--ink-mid)}
.faq-q i{color:var(--ink-mid);font-size:14px;transition:transform .18s var(--ease);flex:0 0 auto}
.faq-item.is-open .faq-q i{transform:rotate(180deg)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .28s var(--ease)}
.faq-a p{font-size:15px;line-height:1.85;color:var(--t2);padding:0 0 22px}

/* cta band */
.cta-band{padding:80px 0;background:#F1EDE4;border-top:1px solid var(--line)}
.cta-band .grid-x{align-items:center}
.cta-band h2{max-width:520px;margin-bottom:14px}
.cta-band p{font-size:15px;color:var(--t2);max-width:520px}
.cta-contact{display:flex;flex-wrap:wrap;gap:24px;margin-top:22px}
.cta-contact div{font-family:var(--mono);font-variant-numeric:tabular-nums;font-size:15px;color:var(--ink)}
.cta-contact span{font-family:var(--sans);font-size:12.5px;color:var(--t3);display:block;margin-bottom:2px}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px;justify-content:flex-end}

/* footer */
.site-footer{background:var(--deep);color:#C9D8D3;padding:72px 0 0;margin-top:0}
.foot-brand .logo{color:#F7F4EE;font-size:19px;margin-bottom:16px}
.foot-brand .logo:hover{color:#DCE7E2}
.foot-brand p{font-size:14px;line-height:1.85;color:#9DBBB2;max-width:300px}
.foot-col h4{font-family:var(--sans);font-size:14px;font-weight:500;color:#F7F4EE;margin-bottom:16px}
.foot-col ul li{margin-bottom:10px}
.foot-col ul li a{font-size:14px;color:#9DBBB2;transition:color .16s var(--ease),transform .16s var(--ease);display:inline-block}
.foot-col ul li a:hover{color:#DCE7E2;transform:translateX(2px)}
.foot-contact{font-size:14px;color:#9DBBB2;line-height:1.9}
.foot-contact .mono{color:#DCE7E2;margin-bottom:6px;font-size:14.5px}
.site-footer .grid-x{padding-bottom:56px}
.foot-bottom{
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:14px;
  border-top:1px solid rgba(220,231,226,.16);
  padding:20px 0 24px;
  font-size:13px;color:#9DBBB2;
}
.foot-bottom .to-top{color:#9DBBB2;display:inline-flex;align-items:center;gap:8px}
.foot-bottom .to-top:hover{color:#DCE7E2}

/* reveal */
.reveal{opacity:0;transform:translateY(12px);transition:opacity .28s var(--ease),transform .28s var(--ease)}
.reveal.is-in{opacity:1;transform:none}

/* foundation overrides */
.grid-x{margin-left:-14px;margin-right:-14px}
.grid-x > .cell{padding-left:14px;padding-right:14px}
.grid-x > .cell > .head-card{margin-top:8px}

@media (max-width:1023px){
  .wrap{padding:0 32px}
  .nav-links,.header-tools{display:none}
  .header-mobile{display:flex}
  .section{padding:72px 0}
  .page-head{padding:40px 0 56px}
  .stat-grid{grid-template-columns:repeat(2,1fr);gap:28px 0}
  .stat-item{padding:0 20px}
  .stat-item:nth-child(odd){border-left:0;padding-left:0}
  .rec-grid{grid-template-columns:repeat(2,1fr)}
  .cta-actions{justify-content:flex-start}
  .cta-band .grid-x > .cell:last-child{margin-top:28px}
}
@media (max-width:639px){
  body{font-size:15px}
  .wrap{padding:0 20px}
  .header-inner{height:60px;gap:12px}
  .site-header.is-stuck .header-inner{height:56px}
  .logo{font-size:17px}
  .logo-mark{width:24px;height:24px;flex:0 0 24px}
  .section{padding:56px 0}
  .page-head{padding:32px 0 48px}
  .page-head h1{font-size:clamp(28px,8vw,34px)}
  .page-lead{font-size:15.5px}
  .head-actions .btn{flex:1 1 100%}
  .statband{padding:40px 0}
  .stat-item{padding:0 16px}
  .stat-val{font-size:28px}
  .timeline{padding-left:32px}
  .tl-item::before{left:-32px;width:13px;height:13px}
  .timeline::before{left:6px}
  .tl-card{padding:20px}
  .rec-grid{grid-template-columns:1fr}
  .sec-head{margin-bottom:28px;padding-bottom:20px}
  .faq-q{font-size:16px}
  .cta-band{padding:56px 0}
  .site-footer{padding:56px 0 0}
  .foot-bottom{flex-direction:column;align-items:flex-start;gap:10px}
}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  .reveal{opacity:1;transform:none;transition:none}
  .btn,.card,.card-img img,.faq-q i,.text-link i,.foot-col ul li a{transition:none}
  .btn:hover,.card:hover .card-img img{transform:none}
}