/* roulang page: index */
:root{
  --ink:#16302A;
  --ink-deep:#0E211D;
  --accent:#C05B2C;
  --accent-dark:#A84C22;
  --muted:#6E7F78;
  --line:#E4DFD6;
  --paper:#F6F4F0;
  --card:#FFFFFF;
  --radius:6px;
  --radius-btn:4px;
  --shadow-1:0 1px 2px rgba(20,23,26,.04);
  --shadow-2:0 8px 24px -12px rgba(20,23,26,.10);
  --container:1200px;
  --font: "PingFang SC","Hiragino Sans GB","Microsoft YaHei","Helvetica Neue",Arial,sans-serif;
  --mono: ui-monospace,SFMono-Regular,Menlo,Consolas,"Liberation Mono",monospace;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  font-family:var(--font);
  font-size:16px;
  line-height:1.8;
  color:var(--ink);
  background:var(--paper);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block;border-radius:var(--radius);}
a{color:var(--ink);text-decoration:none;transition:color .24s ease;}
a:hover{color:var(--accent);}
button,input,select,textarea{font-family:inherit;font-size:inherit;color:inherit;}
h1,h2,h3,h4{margin:0;font-weight:700;letter-spacing:-0.01em;color:var(--ink);}
p{margin:0 0 16px;}
ul,ol{margin:0;padding:0;list-style:none;}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px;}
.container{max-width:var(--container);margin:0 auto;padding:0 24px;width:100%;}
.section{padding:104px 0;}
.section--tight{padding:72px 0;}
.section-head{margin-bottom:48px;max-width:760px;}
.eyebrow{
  display:inline-block;
  font-size:12px;
  letter-spacing:.08em;
  color:var(--accent);
  font-weight:600;
  margin-bottom:14px;
  text-transform:uppercase;
}
.section-head h2{font-size:36px;line-height:1.3;font-weight:700;margin-bottom:14px;}
.section-head p{color:var(--muted);font-size:16px;line-height:1.8;margin:0;}
.mono{font-family:var(--mono);}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  height:48px;
  padding:0 24px;
  border-radius:var(--radius-btn);
  font-size:15px;
  font-weight:600;
  border:1px solid transparent;
  cursor:pointer;
  transition:background-color .24s ease,color .24s ease,border-color .24s ease,transform .24s ease,box-shadow .24s ease;
}
.btn-primary{background:var(--accent);color:#fff;border-color:var(--accent);}
.btn-primary:hover{background:var(--accent-dark);border-color:var(--accent-dark);color:#fff;transform:translateY(-1px);}
.btn-outline{background:transparent;color:var(--ink);border-color:var(--ink);}
.btn-outline:hover{background:var(--ink);color:#fff;transform:translateY(-1px);}
.btn-sm{height:40px;padding:0 18px;font-size:14px;}
.link-arrow{
  display:inline-flex;
  align-items:center;
  gap:6px;
  font-size:15px;
  font-weight:600;
  color:var(--ink);
  position:relative;
}
.link-arrow span.arrow{transition:transform .24s ease;}
.link-arrow::after{
  content:"";
  position:absolute;
  left:0;bottom:-4px;
  width:100%;height:1px;
  background:var(--accent);
  transform:scaleX(0);
  transform-origin:center;
  transition:transform .24s ease;
}
.link-arrow:hover{color:var(--accent);}
.link-arrow:hover::after{transform:scaleX(1);}
.link-arrow:hover span.arrow{transform:translateX(3px);}

/* ---------- badges ---------- */
.badge{
  display:inline-block;
  font-size:12px;
  letter-spacing:.06em;
  color:var(--muted);
  background:rgba(110,127,120,.10);
  padding:3px 10px;
  border-radius:20px;
}
.badge-outline{
  background:transparent;
  border:1px solid rgba(192,91,44,.45);
  color:var(--accent);
}

/* ---------- header ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:60;
  background:rgba(246,244,240,.94);
  backdrop-filter:saturate(140%) blur(8px);
  border-bottom:1px solid var(--line);
}
.nav-wrap{
  display:flex;
  align-items:center;
  justify-content:space-between;
  height:72px;
  gap:24px;
}
.logo{
  display:flex;
  align-items:baseline;
  gap:2px;
  font-size:17px;
  font-weight:800;
  letter-spacing:-0.01em;
  color:var(--ink);
  white-space:nowrap;
}
.logo .logo-mark{
  font-family:var(--mono);
  color:var(--accent);
  font-weight:700;
  margin-right:3px;
}
.logo:hover{color:var(--ink);}
.main-nav{display:flex;align-items:center;gap:34px;}
.main-nav a{
  position:relative;
  font-size:15px;
  font-weight:500;
  letter-spacing:.02em;
  color:var(--muted);
  padding:6px 0;
}
.main-nav a::after{
  content:"";
  position:absolute;
  left:0;bottom:0;
  width:100%;height:2px;
  background:var(--accent);
  transform:scaleX(0);
  transform-origin:center;
  transition:transform .24s ease;
}
.main-nav a:hover{color:var(--ink);}
.main-nav a:hover::after{transform:scaleX(1);}
.main-nav a.is-active{color:var(--ink);font-weight:600;}
.main-nav a.is-active::after{transform:scaleX(1);}
.nav-actions{display:flex;align-items:center;gap:12px;}
.nav-toggle{
  display:none;
  width:42px;height:42px;
  border:1px solid var(--line);
  background:#fff;
  border-radius:var(--radius-btn);
  cursor:pointer;
  align-items:center;
  justify-content:center;
}
.nav-toggle i{
  display:block;
  width:18px;height:2px;
  background:var(--ink);
  position:relative;
}
.nav-toggle i::before,.nav-toggle i::after{
  content:"";
  position:absolute;left:0;
  width:18px;height:2px;
  background:var(--ink);
}
.nav-toggle i::before{top:-6px;}
.nav-toggle i::after{top:6px;}
.drawer-mask{
  position:fixed;inset:0;
  background:rgba(14,33,29,.42);
  opacity:0;visibility:hidden;
  transition:opacity .3s ease,visibility .3s ease;
  z-index:80;
}
.drawer-mask.is-open{opacity:1;visibility:visible;}
.drawer{
  position:fixed;
  top:0;left:0;
  width:280px;max-width:84vw;
  height:100%;
  background:#fff;
  z-index:90;
  transform:translateX(-100%);
  transition:transform .34s cubic-bezier(.22,.61,.36,1);
  box-shadow:var(--shadow-2);
  padding:24px 0;
  overflow-y:auto;
}
.drawer.is-open{transform:translateX(0);}
.drawer-head{padding:0 22px 18px;border-bottom:1px solid var(--line);font-weight:700;font-size:16px;}
.drawer a{
  display:block;
  padding:15px 22px;
  font-size:15px;
  border-bottom:1px solid var(--line);
  color:var(--ink);
}
.drawer a:hover{background:var(--paper);color:var(--accent);}
.drawer a.is-active{color:var(--accent);font-weight:600;}
.drawer .drawer-cta{margin:20px 22px 0;display:block;text-align:center;}

/* ---------- hero ---------- */
.hero{
  position:relative;
  background:var(--ink);
  color:#fff;
  overflow:hidden;
  padding:96px 0 88px;
}
.hero::before{
  content:"";
  position:absolute;inset:0;
  background-image:repeating-linear-gradient(115deg,rgba(255,255,255,.045) 0 1px,transparent 1px 68px);
  opacity:.9;
  pointer-events:none;
}
.hero .container{position:relative;z-index:2;}
.hero-grid{display:grid;grid-template-columns:1fr 1fr;gap:64px;align-items:center;}
.hero-tag{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:12px;
  letter-spacing:.08em;
  color:#E7C9B8;
  border:1px solid rgba(231,201,184,.35);
  padding:5px 12px;
  border-radius:20px;
  margin-bottom:22px;
}
.hero h1{
  font-size:56px;
  line-height:1.15;
  font-weight:800;
  letter-spacing:-0.02em;
  color:#fff;
  margin-bottom:20px;
}
.hero h1 em{
  font-style:normal;
  color:#E7A47C;
}
.hero-sub{
  font-size:18px;
  color:rgba(255,255,255,.76);
  margin-bottom:34px;
  max-width:30em;
}
.hero-actions{display:flex;align-items:center;gap:26px;flex-wrap:wrap;}
.hero .btn-primary{background:var(--accent);border-color:var(--accent);color:#fff;}
.hero .btn-primary:hover{background:#D0693A;border-color:#D0693A;}
.hero .link-arrow{color:#fff;}
.hero .link-arrow:hover{color:#E7A47C;}
.hero-media{position:relative;}
.hero-media img{
  width:100%;
  border-radius:var(--radius);
  filter:saturate(.92) brightness(.94);
  box-shadow:0 24px 60px -24px rgba(0,0,0,.55);
}
.hero-media::after{
  content:"";
  position:absolute;inset:0;
  background:rgba(22,48,42,.18);
  border-radius:var(--radius);
  pointer-events:none;
}
.hero-stat-card{
  position:absolute;
  right:-14px;bottom:-20px;
  background:#fff;
  color:var(--ink);
  border-radius:var(--radius);
  padding:16px 20px;
  box-shadow:var(--shadow-2);
  min-width:172px;
}
.hero-stat-card .num{
  font-family:var(--mono);
  font-size:30px;
  font-weight:700;
  color:var(--accent);
  line-height:1.2;
}
.hero-stat-card .label{font-size:12px;color:var(--muted);letter-spacing:.06em;}

/* ---------- metrics ---------- */
.metrics{
  border:1px solid var(--line);
  border-radius:var(--radius);
  background:#fff;
  display:grid;
  grid-template-columns:repeat(4,1fr);
  overflow:hidden;
}
.metric{
  padding:34px 26px 30px;
  position:relative;
  border-left:1px solid var(--line);
}
.metric:first-child{border-left:none;}
.metric::before{
  content:"";
  position:absolute;
  top:0;left:26px;
  width:26px;height:2px;
  background:var(--accent);
}
.metric .num{
  font-family:var(--mono);
  font-size:44px;
  font-weight:700;
  line-height:1.1;
  color:var(--ink);
  letter-spacing:-0.02em;
}
.metric .num .unit{font-size:17px;font-weight:600;margin-left:2px;color:var(--muted);}
.metric .label{font-size:13px;letter-spacing:.08em;color:var(--muted);margin-top:10px;}

/* ---------- matrix ---------- */
.matrix{display:grid;grid-template-columns:repeat(4,1fr);gap:1px;background:var(--line);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;}
.matrix-item{
  background:#fff;
  padding:30px 26px 26px;
  display:flex;
  flex-direction:column;
  gap:10px;
  transition:background-color .28s ease,color .28s ease;
  min-height:206px;
}
.matrix-item .idx{
  font-family:var(--mono);
  font-size:13px;
  letter-spacing:.1em;
  color:var(--accent);
  font-weight:700;
}
.matrix-item h3{font-size:20px;line-height:1.5;font-weight:600;}
.matrix-item p{font-size:14px;line-height:1.8;color:var(--muted);margin:0;}
.matrix-item .go{margin-top:auto;font-size:15px;color:var(--accent);transition:transform .24s ease;}
.matrix-item:hover{background:var(--ink);}
.matrix-item:hover h3,
.matrix-item:hover .go{color:#fff;}
.matrix-item:hover p{color:rgba(255,255,255,.72);}
.matrix-item:hover .idx{color:#E7A47C;}
.matrix-item:hover .go{transform:translateX(3px);}

/* ---------- news ---------- */
.news-list{margin-top:0;}
.news-card{
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--radius);
  padding:24px;
  height:100%;
  display:flex;
  flex-direction:column;
  gap:12px;
  transition:transform .28s ease,box-shadow .28s ease,border-color .28s ease;
}
.news-card:hover{
  transform:translateY(-3px);
  box-shadow:var(--shadow-2);
  border-color:rgba(192,91,44,.30);
}
.news-card__title{
  font-size:20px;
  line-height:1.55;
  font-weight:600;
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
  overflow:hidden;
}
.news-card__title a:hover{color:var(--accent);}
.news-card__summary{
  font-size:14px;
  line-height:1.8;
  color:var(--muted);
  margin:0;
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
  overflow:hidden;
}
.news-card__meta{
  margin-top:auto;
  padding-top:14px;
  border-top:1px solid var(--line);
  display:flex;
  align-items:center;
  justify-content:space-between;
  font-size:13px;
  color:var(--muted);
}
.news-card__meta time{font-family:var(--mono);font-size:12.5px;}
.news-card__meta .read{font-size:14px;font-weight:600;color:var(--accent);}
.news-empty{
  border:1px dashed var(--line);
  border-radius:var(--radius);
  padding:56px 24px;
  text-align:center;
  color:var(--muted);
  background:#fff;
}
.news-empty p{margin-bottom:18px;}

/* ---------- feature wall ---------- */
.wall-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:20px;}
.wall-card{
  position:relative;
  border-radius:var(--radius);
  overflow:hidden;
  background:var(--ink);
  min-height:280px;
  display:flex;
  align-items:flex-end;
  transition:transform .28s ease,box-shadow .28s ease;
}
.wall-card:nth-child(1){min-height:360px;}
.wall-card img{
  position:absolute;inset:0;
  width:100%;height:100%;
  object-fit:cover;
  filter:saturate(.92) brightness(.82);
  transition:transform .5s cubic-bezier(.22,.61,.36,1);
  border-radius:0;
}
.wall-card:hover img{transform:scale(1.03);}
.wall-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-2);}
.wall-card__body{
  position:relative;
  z-index:2;
  padding:26px;
  color:#fff;
  background:linear-gradient(180deg,rgba(14,33,29,0) 0%,rgba(14,33,29,.82) 72%);
  width:100%;
}
.wall-card__body h3{color:#fff;font-size:20px;line-height:1.5;font-weight:600;margin-bottom:6px;}
.wall-card__body p{color:rgba(255,255,255,.76);font-size:14px;margin:0;}

/* ---------- compare ---------- */
.compare{display:grid;grid-template-columns:1fr 1fr;gap:24px;}
.compare-col{
  border-radius:var(--radius);
  padding:30px 28px;
  background:#EFECE6;
  border:1px solid var(--line);
}
.compare-col--after{background:#fff;border-color:rgba(192,91,44,.35);}
.compare-col h3{font-size:20px;font-weight:600;margin-bottom:20px;}
.compare-col--after h3{color:var(--accent);}
.bar-row{margin-bottom:20px;}
.bar-row .bar-label{
  display:flex;justify-content:space-between;
  font-size:13px;color:var(--muted);margin-bottom:8px;
}
.bar-track{height:8px;background:rgba(110,127,120,.16);border-radius:6px;overflow:hidden;}
.bar-fill{height:100%;border-radius:6px;background:var(--muted);width:0;transition:width 1s cubic-bezier(.22,.61,.36,1);}
.compare-col--after .bar-fill{background:var(--accent);}
.diff-tags{display:flex;gap:12px;flex-wrap:wrap;margin-top:26px;}
.diff-tags .badge-outline{font-family:var(--mono);font-size:12.5px;}

/* ---------- faq ---------- */
.faq-list{border-top:1px solid var(--line);}
.accordion.faq-list{border:none;background:transparent;margin:0;}
.accordion.faq-list .accordion-item{border-bottom:1px solid var(--line);}
.accordion.faq-list .accordion-title{
  padding:22px 44px 22px 0;
  font-size:17px;
  font-weight:600;
  color:var(--ink);
  border:none;
  background:transparent;
  position:relative;
  line-height:1.6;
}
.accordion.faq-list .accordion-title:hover{color:var(--accent);background:transparent;}
.accordion.faq-list .accordion-title::before{
  content:"+";
  position:absolute;
  right:6px;top:50%;
  transform:translateY(-50%);
  font-size:22px;
  font-weight:400;
  color:var(--accent);
  transition:transform .28s ease;
}
.accordion.faq-list .accordion-item.is-active .accordion-title::before{
  content:"×";
  transform:translateY(-50%) rotate(0deg);
}
.accordion.faq-list .accordion-content{
  padding:0 40px 24px 0;
  color:var(--muted);
  font-size:15px;
  line-height:1.8;
  border:none;
  background:transparent;
}

/* ---------- contact ---------- */
.contact{
  background:var(--ink);
  color:#fff;
  border-radius:var(--radius);
  padding:56px 48px;
  display:grid;
  grid-template-columns:1fr 1.1fr;
  gap:56px;
}
.contact h2{color:#fff;font-size:34px;line-height:1.3;margin-bottom:14px;}
.contact p{color:rgba(255,255,255,.74);font-size:15px;line-height:1.85;}
.contact-points li{
  border-top:1px solid rgba(255,255,255,.14);
  padding:14px 0;
  font-size:14px;
  color:rgba(255,255,255,.82);
  display:flex;gap:12px;
}
.contact-points li:first-child{border-top:none;}
.contact-points span{font-family:var(--mono);color:#E7A47C;font-size:12.5px;letter-spacing:.08em;}
.form-card{background:#fff;border-radius:var(--radius);padding:32px;color:var(--ink);}
.form-row{margin-bottom:18px;}
.form-row label{display:block;font-size:13px;color:var(--muted);margin-bottom:8px;letter-spacing:.04em;}
.form-row input,
.form-row select,
.form-row textarea{
  width:100%;
  height:48px;
  border:1px solid var(--line);
  border-radius:var(--radius-btn);
  background:#fff;
  padding:0 14px;
  font-size:15px;
  transition:border-color .24s ease,box-shadow .24s ease;
}
.form-row textarea{height:104px;padding:12px 14px;line-height:1.7;resize:vertical;}
.form-row input:focus,
.form-row select:focus,
.form-row textarea:focus{
  border-color:var(--accent);
  box-shadow:0 0 0 3px rgba(192,91,44,.14);
  outline:none;
}
.form-card .btn{width:100%;}
.form-note{font-size:12px;color:var(--muted);margin:14px 0 0;line-height:1.7;}

/* ---------- footer ---------- */
.site-footer{background:var(--ink);color:rgba(255,255,255,.74);padding:72px 0 28px;margin-top:0;}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:40px;padding-bottom:44px;border-bottom:1px solid rgba(255,255,255,.14);}
.site-footer h4{color:#fff;font-size:15px;letter-spacing:.04em;margin-bottom:18px;font-weight:600;}
.site-footer .brand-line{font-size:17px;font-weight:800;color:#fff;margin-bottom:12px;}
.site-footer .brand-line .logo-mark{font-family:var(--mono);color:#E7A47C;margin-right:3px;}
.site-footer p{font-size:14px;line-height:1.85;color:rgba(255,255,255,.66);}
.footer-links li{margin-bottom:10px;}
.footer-links a{font-size:14px;color:rgba(255,255,255,.74);}
.footer-links a:hover{color:#E7A47C;text-decoration:underline;}
.footer-sub{display:flex;gap:10px;margin-top:14px;}
.footer-sub input{
  flex:1;
  height:44px;
  background:rgba(255,255,255,.06);
  border:1px solid rgba(255,255,255,.18);
  border-radius:var(--radius-btn);
  padding:0 12px;
  color:#fff;
  font-size:14px;
}
.footer-sub input::placeholder{color:rgba(255,255,255,.42);}
.footer-sub input:focus{border-color:var(--accent);outline:none;box-shadow:0 0 0 3px rgba(192,91,44,.22);}
.footer-sub button{
  height:44px;
  padding:0 18px;
  background:var(--accent);
  border:none;
  color:#fff;
  border-radius:var(--radius-btn);
  font-size:14px;
  font-weight:600;
  cursor:pointer;
  transition:background-color .24s ease,transform .24s ease;
}
.footer-sub button:hover{background:#D0693A;transform:translateY(-1px);}
.footer-bottom{
  padding-top:22px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:18px;
  flex-wrap:wrap;
  font-size:13px;
  color:rgba(255,255,255,.52);
}
.footer-bottom a{color:rgba(255,255,255,.62);}
.footer-bottom a:hover{color:#E7A47C;}

/* ---------- reveal ---------- */
.reveal{opacity:0;transform:translateY(16px);transition:opacity .52s cubic-bezier(.22,.61,.36,1),transform .52s cubic-bezier(.22,.61,.36,1);}
.reveal.is-visible{opacity:1;transform:translateY(0);}

@media (prefers-reduced-motion: reduce){
  *{animation:none !important;transition:none !important;}
  .reveal{opacity:1;transform:none;}
}

/* ---------- responsive ---------- */
@media (max-width:1024px){
  .hero h1{font-size:44px;}
  .hero-grid{gap:44px;}
  .matrix{grid-template-columns:repeat(2,1fr);}
  .wall-grid{grid-template-columns:1fr 1fr;}
  .wall-card:nth-child(1){grid-column:span 2;min-height:320px;}
  .contact{grid-template-columns:1fr;padding:44px 32px;gap:36px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .section{padding:84px 0;}
}
@media (max-width:900px){
  .main-nav{display:none;}
  .nav-actions .btn-outline{display:none;}
  .nav-toggle{display:flex;}
}
@media (max-width:768px){
  .container{padding:0 20px;}
  .nav-wrap{height:60px;}
  .logo{font-size:15.5px;}
  .hero{padding:64px 0 72px;}
  .hero-grid{grid-template-columns:1fr;gap:40px;}
  .hero h1{font-size:34px;line-height:1.28;}
  .hero-sub{font-size:16px;margin-bottom:28px;}
  .hero-stat-card{right:12px;bottom:-16px;padding:12px 16px;min-width:150px;}
  .hero-stat-card .num{font-size:24px;}
  .section{padding:64px 0;}
  .section--tight{padding:56px 0;}
  .section-head h2{font-size:28px;}
  .metrics{grid-template-columns:repeat(2,1fr);}
  .metric{border-left:1px solid var(--line);}
  .metric:nth-child(odd){border-left:none;}
  .metric:nth-child(n+3){border-top:1px solid var(--line);}
  .metric .num{font-size:34px;}
  .matrix{grid-template-columns:1fr;}
  .matrix-item{min-height:auto;}
  .compare{grid-template-columns:1fr;}
  .wall-grid{grid-template-columns:1fr;}
  .wall-card:nth-child(1){grid-column:span 1;min-height:300px;}
  .contact{padding:36px 22px;}
  .contact h2{font-size:26px;}
  .form-card{padding:24px 20px;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .form-card .btn{width:100%;}
}
@media (max-width:520px){
  .hero h1{font-size:30px;}
  .hero-actions{gap:18px;}
  .hero-actions .btn{width:100%;}
  .hero-actions .link-arrow{width:100%;justify-content:flex-start;}
  .metrics{grid-template-columns:1fr;}
  .metric{border-left:none !important;}
  .metric:nth-child(n+2){border-top:1px solid var(--line);}
  .section-head h2{font-size:25px;}
  .news-card{padding:20px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
}

/* roulang page: article */
:root{
  --ink:#16302A;
  --ink-soft:#2C3B36;
  --accent:#C05B2C;
  --accent-dark:#A84A20;
  --accent-soft:rgba(192,91,44,.35);
  --muted:#6E7F78;
  --line:#E4DFD6;
  --paper:#F6F4F0;
  --card:#FFFFFF;
  --radius:6px;
  --radius-btn:4px;
  --shadow-1:0 1px 2px rgba(20,23,26,.04);
  --shadow-2:0 8px 24px -12px rgba(20,23,26,.10);
  --sect:104px;
  --mono:ui-monospace,SFMono-Regular,Menlo,Consolas,"Liberation Mono","Courier New",monospace;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei","Helvetica Neue",Arial,sans-serif;
  font-size:16px;
  line-height:1.8;
  color:var(--ink-soft);
  background:var(--paper);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block}
a{color:inherit;text-decoration:none;background-color:transparent}
a:hover{color:var(--accent)}
button,input,textarea{font:inherit;color:inherit}
button{cursor:pointer}
h1,h2,h3,h4,p,ul,ol,figure,blockquote{margin:0}
ul,ol{padding:0}
table{border-collapse:collapse;width:100%}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px}
.container{max-width:1200px;margin:0 auto;padding:0 24px;width:100%}
.visually-hidden{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap;border:0}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:80;
  background:rgba(246,244,240,.94);
  -webkit-backdrop-filter:saturate(1.2) blur(10px);
  backdrop-filter:saturate(1.2) blur(10px);
  border-bottom:1px solid var(--line);
}
.nav-wrap{display:flex;align-items:center;justify-content:space-between;gap:24px;height:72px}
.logo{display:inline-flex;align-items:center;gap:9px;font-size:18px;font-weight:800;letter-spacing:-.01em;color:var(--ink);white-space:nowrap}
.logo-mark{
  display:inline-flex;align-items:center;justify-content:center;
  height:26px;padding:0 8px;border-radius:4px;
  background:var(--ink);color:#fff;font-size:13px;font-weight:700;letter-spacing:.05em;
  font-family:var(--mono);
}
.main-nav{display:flex;align-items:center;gap:34px}
.main-nav a{position:relative;display:inline-block;padding:6px 0;font-size:15px;font-weight:500;letter-spacing:.02em;color:var(--muted);transition:color .24s ease}
.main-nav a::after{content:"";position:absolute;left:0;right:0;bottom:0;height:2px;background:var(--accent);transform:scaleX(0);transform-origin:center;transition:transform .24s cubic-bezier(.22,.61,.36,1)}
.main-nav a:hover{color:var(--ink)}
.main-nav a:hover::after{transform:scaleX(1)}
.main-nav a.is-active{color:var(--ink);font-weight:600}
.main-nav a.is-active::after{transform:scaleX(1)}
.nav-actions{display:flex;align-items:center;gap:12px}

.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 24px;border-radius:var(--radius-btn);
  font-size:15px;font-weight:600;letter-spacing:.01em;
  border:1px solid transparent;background:transparent;
  transition:background-color .24s ease,color .24s ease,border-color .24s ease,transform .24s ease,box-shadow .24s ease;
}
.btn-primary{background:var(--accent);color:#fff}
.btn-primary:hover{background:var(--accent-dark);color:#fff;transform:translateY(-1px);box-shadow:var(--shadow-2)}
.btn-outline{border-color:var(--ink);color:var(--ink)}
.btn-outline:hover{background:var(--ink);color:#fff;border-color:var(--ink)}
.btn-sm{height:40px;padding:0 18px;font-size:14px}
.link-arrow{display:inline-flex;align-items:center;gap:8px;font-size:15px;font-weight:600;color:var(--ink)}
.link-arrow span.arrow{transition:transform .24s ease;font-family:var(--mono)}
.link-arrow:hover{color:var(--accent)}
.link-arrow:hover span.arrow{transform:translateX(3px)}

.nav-toggle{
  display:none;position:relative;width:40px;height:40px;padding:0;
  border:1px solid var(--line);border-radius:var(--radius-btn);background:#fff;
}
.nav-toggle i{position:absolute;left:50%;top:50%;width:18px;height:2px;background:var(--ink);transform:translate(-50%,-50%);transition:background-color .24s ease}
.nav-toggle i::before,.nav-toggle i::after{content:"";position:absolute;left:0;width:18px;height:2px;background:var(--ink);transition:transform .24s ease}
.nav-toggle i::before{top:-6px}
.nav-toggle i::after{top:6px}
.nav-toggle[aria-expanded="true"] i{background:transparent}
.nav-toggle[aria-expanded="true"] i::before{transform:translateY(6px) rotate(45deg)}
.nav-toggle[aria-expanded="true"] i::after{transform:translateY(-6px) rotate(-45deg)}

/* ---------- article hero ---------- */
.article-hero{padding:48px 0 0;position:relative}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--muted);letter-spacing:.02em}
.breadcrumb a{color:var(--muted)}
.breadcrumb a:hover{color:var(--accent)}
.breadcrumb .sep{opacity:.5}
.breadcrumb .current{color:var(--ink);max-width:24em;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.article-head{margin-top:26px;max-width:920px}
.cat-badge{
  display:inline-block;padding:5px 12px;border-radius:999px;
  border:1px solid var(--accent-soft);color:var(--accent);
  font-size:12px;letter-spacing:.08em;line-height:1.6;
}
.article-title{
  margin:18px 0 0;font-size:clamp(30px,4.2vw,52px);
  line-height:1.18;font-weight:800;letter-spacing:-.02em;color:var(--ink);
}
.article-meta{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px 24px;
  margin-top:22px;padding-top:20px;border-top:1px solid var(--line);
  font-size:13px;color:var(--muted);letter-spacing:.02em;
}
.article-meta .num{font-family:var(--mono);font-style:normal;color:var(--ink);font-weight:600;margin-left:5px}
.article-meta em{font-style:normal}

/* ---------- article body ---------- */
.article-main{padding:44px 0 var(--sect)}
.article-shell{
  max-width:840px;margin:0 auto;
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius);
  padding:44px;box-shadow:var(--shadow-1);
}
.article-cover{margin:0 0 36px;border-radius:var(--radius);overflow:hidden;position:relative}
.article-cover img{width:100%;aspect-ratio:16/9;object-fit:cover;filter:saturate(.92);transition:transform .5s ease}
.article-cover::after{content:"";position:absolute;inset:0;background:rgba(22,48,42,.08);pointer-events:none}
.article-cover:hover img{transform:scale(1.03)}

.article-body{font-size:17px;line-height:1.9;color:var(--ink-soft)}
.article-body>*:first-child{margin-top:0}
.article-body p{margin:0 0 1.4em}
.article-body h2{
  margin:2.2em 0 .75em;font-size:27px;line-height:1.35;font-weight:700;color:var(--ink);
  letter-spacing:-.01em;padding-left:14px;border-left:3px solid var(--accent);
}
.article-body h3{margin:1.8em 0 .6em;font-size:20px;line-height:1.5;font-weight:600;color:var(--ink)}
.article-body h4{margin:1.5em 0 .5em;font-size:17px;font-weight:600;color:var(--ink)}
.article-body ul,.article-body ol{margin:0 0 1.5em 1.35em;padding:0}
.article-body li{margin:.5em 0}
.article-body li::marker{color:var(--accent)}
.article-body blockquote{
  margin:1.8em 0;padding:.55em 0 .55em 20px;
  border-left:3px solid var(--accent);
  background:#FBFAF7;color:var(--muted);font-size:16px;
}
.article-body blockquote p:last-child{margin-bottom:0}
.article-body img{border-radius:var(--radius);margin:1.6em 0;width:100%}
.article-body figure{margin:1.8em 0}
.article-body figcaption{margin-top:.7em;font-size:13px;color:var(--muted);text-align:center;letter-spacing:.02em}
.article-body a{color:var(--accent);border-bottom:1px solid var(--accent-soft)}
.article-body a:hover{color:var(--accent-dark)}
.article-body table{margin:1.8em 0;font-size:15px}
.article-body th,.article-body td{border-top:1px solid var(--line);border-bottom:1px solid var(--line);padding:13px 14px;text-align:left;vertical-align:top}
.article-body th{color:var(--ink);font-weight:600;background:#FBFAF7}
.article-body code{font-family:var(--mono);font-size:.92em;background:#F1EEE8;border-radius:4px;padding:2px 6px;color:var(--ink)}
.article-body hr{border:0;border-top:1px solid var(--line);margin:2.4em 0}
.empty-state{
  border:1px dashed var(--line);border-radius:var(--radius);
  padding:56px 24px;text-align:center;background:#FBFAF7;
}
.empty-state p{font-size:17px;color:var(--muted);margin-bottom:20px}

.article-back{margin-top:34px;display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:14px}

/* ---------- related ---------- */
.related{padding:0 0 var(--sect)}
.section-head{max-width:640px;margin-bottom:40px}
.section-eyebrow{font-size:12px;letter-spacing:.16em;text-transform:uppercase;color:var(--accent);font-weight:700;font-family:var(--mono)}
.section-title{margin-top:14px;font-size:clamp(24px,2.6vw,34px);line-height:1.3;font-weight:700;color:var(--ink);letter-spacing:-.01em}
.section-desc{margin-top:12px;font-size:15px;color:var(--muted)}

.card-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}
.card{
  display:flex;flex-direction:column;background:var(--card);
  border:1px solid var(--line);border-radius:var(--radius);
  overflow:hidden;box-shadow:var(--shadow-1);
  transition:transform .28s ease,box-shadow .28s ease,border-color .28s ease;
}
.card:hover{transform:translateY(-3px);box-shadow:var(--shadow-2);border-color:var(--accent-soft)}
.card-thumb{position:relative;overflow:hidden;background:#EDE9E2}
.card-thumb img{width:100%;aspect-ratio:4/3;object-fit:cover;filter:saturate(.92);transition:transform .5s ease}
.card-thumb::after{content:"";position:absolute;inset:0;background:rgba(22,48,42,.08);pointer-events:none}
.card:hover .card-thumb img{transform:scale(1.03)}
.card-body{padding:24px;display:flex;flex-direction:column;gap:12px;flex:1}
.card h3{font-size:19px;line-height:1.5;font-weight:600;color:var(--ink)}
.card p{font-size:14.5px;line-height:1.75;color:var(--muted)}
.card .card-link{margin-top:auto;font-size:14px;font-weight:600;color:var(--ink);display:inline-flex;align-items:center;gap:6px}
.card .card-link span{font-family:var(--mono);transition:transform .24s ease}
.card:hover .card-link{color:var(--accent)}
.card:hover .card-link span{transform:translateX(3px)}
.badge{
  display:inline-block;padding:3px 10px;border-radius:999px;
  background:#F1EEE8;color:var(--muted);
  font-size:12px;letter-spacing:.06em;line-height:1.7;width:fit-content;
}

/* ---------- cta band ---------- */
.cta-band{background:var(--ink);color:#fff;padding:72px 0;position:relative;overflow:hidden}
.cta-band::before{
  content:"";position:absolute;inset:0;
  background-image:linear-gradient(rgba(255,255,255,.05) 1px,transparent 1px);
  background-size:100% 32px;opacity:.5;pointer-events:none;
}
.cta-inner{position:relative;display:flex;align-items:center;justify-content:space-between;gap:36px;flex-wrap:wrap}
.cta-inner h2{font-size:clamp(22px,2.4vw,30px);line-height:1.35;font-weight:700;letter-spacing:-.01em;color:#fff}
.cta-inner p{margin-top:12px;font-size:15px;color:rgba(255,255,255,.72);max-width:52ch}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap}
.btn-ghost{border-color:rgba(255,255,255,.35);color:#fff}
.btn-ghost:hover{background:#fff;color:var(--ink);border-color:#fff}

/* ---------- footer ---------- */
.site-footer{background:var(--ink);color:rgba(255,255,255,.76);padding:64px 0 28px}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.3fr;gap:40px;padding-bottom:40px;border-bottom:1px solid rgba(255,255,255,.14)}
.brand-line{display:inline-flex;align-items:center;gap:9px;color:#fff;font-size:17px;font-weight:700;margin-bottom:14px}
.brand-line .logo-mark{background:#fff;color:var(--ink)}
.site-footer p{font-size:14px;line-height:1.8;color:rgba(255,255,255,.62)}
.site-footer h4{font-size:14px;font-weight:600;letter-spacing:.06em;color:#fff;margin-bottom:18px}
.footer-links{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:11px}
.footer-links a{font-size:14px;color:rgba(255,255,255,.68);position:relative;display:inline-block;transition:color .24s ease}
.footer-links a::after{content:"";position:absolute;left:0;bottom:-2px;width:100%;height:1px;background:currentColor;transform:scaleX(0);transform-origin:left;transition:transform .24s ease}
.footer-links a:hover{color:#fff}
.footer-links a:hover::after{transform:scaleX(1)}
.footer-sub{display:flex;gap:8px;margin-top:6px}
.footer-sub input{
  flex:1;height:44px;padding:0 14px;border-radius:var(--radius-btn);
  border:1px solid rgba(255,255,255,.22);background:rgba(255,255,255,.06);
  color:#fff;font-size:14px;transition:border-color .24s ease,background-color .24s ease;
}
.footer-sub input::placeholder{color:rgba(255,255,255,.45)}
.footer-sub input:focus{outline:none;border-color:var(--accent);background:rgba(255,255,255,.1);box-shadow:0 0 0 2px rgba(192,91,44,.28)}
.footer-sub button{
  height:44px;padding:0 20px;border-radius:var(--radius-btn);border:1px solid transparent;
  background:var(--accent);color:#fff;font-size:14px;font-weight:600;
  transition:background-color .24s ease,transform .24s ease;
}
.footer-sub button:hover{background:var(--accent-dark);transform:translateY(-1px)}
.footer-bottom{display:flex;justify-content:space-between;align-items:center;gap:16px;flex-wrap:wrap;padding-top:24px;font-size:13px;color:rgba(255,255,255,.5)}
.footer-bottom a{color:rgba(255,255,255,.68)}
.footer-bottom a:hover{color:#fff}

/* ---------- reveal ---------- */
.reveal{opacity:0;transform:translateY(16px);transition:opacity .52s cubic-bezier(.22,.61,.36,1),transform .52s cubic-bezier(.22,.61,.36,1)}
.reveal.is-visible{opacity:1;transform:none}

@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation:none !important;transition:none !important}
  .reveal{opacity:1;transform:none}
}

/* ---------- responsive ---------- */
@media (max-width:1024px){
  :root{--sect:84px}
  .card-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .article-shell{padding:36px}
}
@media (max-width:900px){
  .nav-toggle{display:inline-flex;align-items:center;justify-content:center}
  .main-nav{
    position:fixed;top:0;left:0;z-index:120;
    width:284px;max-width:86vw;height:100vh;height:100dvh;
    flex-direction:column;align-items:stretch;gap:0;
    padding:88px 0 28px;background:#fff;
    box-shadow:8px 0 30px -18px rgba(20,23,26,.28);
    transform:translateX(-104%);
    transition:transform .32s cubic-bezier(.22,.61,.36,1);
  }
  .main-nav.is-open{transform:translateX(0)}
  .main-nav a{padding:16px 24px;font-size:16px;border-bottom:1px solid var(--line);color:var(--ink)}
  .main-nav a::after{display:none}
  .main-nav a.is-active{border-left:2px solid var(--accent);padding-left:22px}
}
@media (max-width:768px){
  :root{--sect:68px}
  .container{padding:0 20px}
  .nav-wrap{height:60px}
  .logo{font-size:16px}
  .article-hero{padding:34px 0 0}
  .article-shell{padding:26px 20px}
  .article-body{font-size:16.5px;line-height:1.88}
  .article-body h2{font-size:22px}
  .article-body h3{font-size:18px}
  .card-grid{grid-template-columns:1fr}
  .cta-inner{flex-direction:column;align-items:flex-start}
  .cta-actions{width:100%}
  .cta-actions .btn{width:100%}
}
@media (max-width:520px){
  .logo span:not(.logo-mark){font-size:15px}
  .article-title{font-size:28px}
  .article-meta{gap:6px 16px;font-size:12.5px}
  .footer-grid{grid-template-columns:1fr}
  .footer-bottom{flex-direction:column;align-items:flex-start}
  .article-back{flex-direction:column;align-items:flex-start}
}

/* roulang page: category2 */
:root{
  --ink:#16302A;
  --accent:#C05B2C;
  --accent-dark:#A94C21;
  --muted:#6E7F78;
  --line:#E4DFD6;
  --paper:#F6F4F0;
  --card:#FFFFFF;
  --radius:6px;
  --radius-btn:4px;
  --shadow-1:0 1px 2px rgba(20,23,26,.04);
  --shadow-2:0 8px 24px -12px rgba(20,23,26,.10);
  --ease:cubic-bezier(.22,.61,.36,1);
  --sans:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei","Helvetica Neue",Arial,sans-serif;
  --mono:"SFMono-Regular",Consolas,"Liberation Mono",Menlo,monospace;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--paper);
  color:var(--ink);
  font-family:var(--sans);
  font-size:16px;
  line-height:1.8;
  letter-spacing:.01em;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block;}
a{color:var(--ink);text-decoration:none;transition:color .24s var(--ease);}
a:hover{color:var(--accent);}
button,input,select,textarea{font-family:inherit;font-size:inherit;color:inherit;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4,p{margin:0;}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px;}

.container{max-width:1200px;margin:0 auto;padding:0 24px;width:100%;}
.section{padding:96px 0;}
.section-tight{padding:72px 0;}
.section-head{max-width:720px;margin-bottom:48px;}
.eyebrow{
  font-size:12px;letter-spacing:.08em;color:var(--muted);
  text-transform:none;font-weight:600;display:inline-block;margin-bottom:14px;
}
.section-title{font-size:36px;line-height:1.3;font-weight:700;letter-spacing:-.01em;}
.section-sub{margin-top:14px;color:var(--muted);font-size:16px;line-height:1.8;}
.hr-line{height:1px;background:var(--line);border:0;margin:0;}

/* ---------- Header ---------- */
.site-header{
  position:sticky;top:0;z-index:50;
  background:rgba(246,244,240,.94);
  -webkit-backdrop-filter:blur(12px);
  backdrop-filter:blur(12px);
  border-bottom:1px solid var(--line);
}
.nav-wrap{display:flex;align-items:center;justify-content:space-between;gap:24px;height:72px;}
.logo{display:flex;align-items:center;gap:9px;font-size:19px;font-weight:800;letter-spacing:-.01em;color:var(--ink);white-space:nowrap;}
.logo:hover{color:var(--ink);}
.logo-mark{
  display:inline-block;background:var(--ink);color:#fff;border-radius:4px;
  font-size:14px;font-weight:700;letter-spacing:.06em;padding:3px 8px;line-height:1.3;
}
.main-nav{display:flex;align-items:center;gap:32px;}
.main-nav a{
  position:relative;display:inline-block;padding:6px 0;
  font-size:15px;font-weight:500;letter-spacing:.02em;color:var(--muted);
}
.main-nav a::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:2px;background:var(--accent);
  transform:scaleX(0);transform-origin:center;transition:transform .24s var(--ease);
}
.main-nav a:hover{color:var(--ink);}
.main-nav a:hover::after{transform:scaleX(1);}
.main-nav a.is-active{color:var(--ink);font-weight:600;}
.main-nav a.is-active::after{transform:scaleX(1);}
.nav-actions{display:flex;align-items:center;gap:14px;}

/* ---------- Buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 26px;border-radius:var(--radius-btn);
  font-size:15px;font-weight:600;letter-spacing:.02em;cursor:pointer;
  border:1px solid transparent;transition:background-color .24s var(--ease),color .24s var(--ease),border-color .24s var(--ease),transform .24s var(--ease),box-shadow .24s var(--ease);
}
.btn-primary{background:var(--accent);color:#fff;}
.btn-primary:hover{background:var(--accent-dark);color:#fff;transform:translateY(-1px);box-shadow:var(--shadow-2);}
.btn-outline{background:transparent;color:var(--ink);border-color:var(--ink);}
.btn-outline:hover{background:var(--ink);color:#fff;transform:translateY(-1px);}
.btn-sm{height:38px;padding:0 18px;font-size:14px;}
.btn-block{width:100%;}
.link-arrow{
  display:inline-flex;align-items:center;gap:6px;color:var(--ink);font-weight:600;
  font-size:15px;border-bottom:1px solid transparent;
}
.link-arrow span.arrow{display:inline-block;transition:transform .24s var(--ease);}
.link-arrow:hover{color:var(--accent);}
.link-arrow:hover span.arrow{transform:translateX(3px);}

.badge{
  display:inline-block;font-size:12px;letter-spacing:.06em;font-weight:600;
  color:var(--muted);background:rgba(22,48,42,.05);
  border-radius:999px;padding:5px 12px;
}
.badge-accent{color:var(--accent);background:transparent;border:1px solid rgba(192,91,44,.35);}

/* ---------- Page hero ---------- */
.page-hero{border-bottom:1px solid var(--line);background:var(--paper);}
.page-hero-inner{
  display:grid;grid-template-columns:1.05fr 1fr;gap:56px;align-items:center;
  min-height:320px;padding:56px 0;
}
.crumb{font-size:13px;color:var(--muted);letter-spacing:.04em;margin-bottom:18px;}
.crumb a{color:var(--muted);}
.crumb a:hover{color:var(--accent);}
.crumb span.sep{margin:0 8px;color:#C9C2B6;}
.page-hero h1{
  font-size:52px;line-height:1.15;font-weight:800;letter-spacing:-.02em;margin-bottom:18px;
}
.page-hero h1 em{font-style:normal;color:var(--accent);}
.hero-sub{font-size:17px;color:var(--muted);max-width:32em;margin-bottom:26px;}
.hero-cta{display:flex;align-items:center;gap:24px;flex-wrap:wrap;}
.hero-meta{display:flex;gap:32px;flex-wrap:wrap;margin-top:30px;padding-top:22px;border-top:1px solid var(--line);}
.hero-meta div{font-size:13px;color:var(--muted);letter-spacing:.04em;}
.hero-meta b{display:block;font-family:var(--mono);font-size:22px;font-weight:700;color:var(--ink);letter-spacing:0;margin-bottom:2px;}
.hero-figure{position:relative;border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow-1);}
.hero-figure img{width:100%;aspect-ratio:4/3;object-fit:cover;filter:saturate(.92);}
.hero-figure::after{
  content:"";position:absolute;inset:0;background:rgba(22,48,42,.08);pointer-events:none;
}

/* ---------- Layout with sticky toc ---------- */
.layout{display:grid;grid-template-columns:264px minmax(0,1fr);gap:56px;align-items:start;padding:88px 0 96px;}
.toc{position:sticky;top:104px;}
.toc-title{font-size:12px;letter-spacing:.08em;color:var(--muted);font-weight:600;margin-bottom:16px;}
.toc ul{border-left:1px solid var(--line);}
.toc li a{
  display:block;padding:10px 0 10px 18px;font-size:14px;color:var(--muted);
  border-left:2px solid transparent;margin-left:-1px;transition:color .24s var(--ease),border-color .24s var(--ease),padding-left .24s var(--ease);
}
.toc li a:hover{color:var(--ink);border-left-color:rgba(192,91,44,.4);padding-left:22px;}
.toc li a.is-current{color:var(--accent);border-left-color:var(--accent);font-weight:600;}
.toc-note{margin-top:24px;padding:18px;border:1px solid var(--line);border-radius:var(--radius);background:var(--card);}
.toc-note p{font-size:13px;color:var(--muted);line-height:1.7;margin-bottom:12px;}
.toc-note .btn{height:40px;padding:0 16px;font-size:14px;width:100%;}

.content-flow section{padding-bottom:72px;margin-bottom:72px;border-bottom:1px solid var(--line);scroll-margin-top:104px;}
.content-flow section:last-child{border-bottom:0;margin-bottom:0;padding-bottom:0;}
.content-flow h2{font-size:32px;line-height:1.3;font-weight:700;letter-spacing:-.01em;margin-bottom:16px;}
.content-flow h3{font-size:20px;line-height:1.5;font-weight:600;margin-bottom:8px;}
.lead{font-size:17px;color:#3B4E47;line-height:1.85;margin-bottom:20px;}
.para{font-size:16px;color:var(--muted);line-height:1.85;margin-bottom:18px;}

/* ---------- Channel cards (2 columns) ---------- */
.channel-grid{margin-top:8px;}
.channel-card{
  display:flex;flex-direction:column;height:100%;
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius);
  overflow:hidden;box-shadow:var(--shadow-1);
  transition:transform .24s var(--ease),box-shadow .24s var(--ease),border-color .24s var(--ease);
}
.channel-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-2);border-color:rgba(192,91,44,.3);}
.channel-thumb{overflow:hidden;position:relative;}
.channel-thumb img{width:100%;aspect-ratio:16/9;object-fit:cover;filter:saturate(.92);transition:transform .35s var(--ease);}
.channel-thumb::after{content:"";position:absolute;inset:0;background:rgba(22,48,42,.08);}
.channel-card:hover .channel-thumb img{transform:scale(1.03);}
.channel-body{padding:22px 24px 26px;display:flex;flex-direction:column;gap:8px;flex:1;}
.channel-body p{font-size:14px;color:var(--muted);line-height:1.8;}
.channel-body .meta{margin-top:auto;padding-top:14px;font-family:var(--mono);font-size:12px;color:var(--muted);letter-spacing:.02em;}

/* ---------- Comparison bars ---------- */
.cmp-list{margin-top:10px;border-top:1px solid var(--line);}
.cmp-row{padding:22px 0;border-bottom:1px solid var(--line);}
.cmp-head{display:flex;justify-content:space-between;align-items:baseline;gap:16px;margin-bottom:12px;}
.cmp-head strong{font-size:16px;font-weight:600;}
.cmp-head em{font-style:normal;font-family:var(--mono);font-size:20px;font-weight:700;color:var(--accent);}
.cmp-track{height:8px;background:rgba(22,48,42,.07);border-radius:999px;overflow:hidden;}
.cmp-fill{
  height:100%;width:0;border-radius:999px;
  background:linear-gradient(90deg,rgba(192,91,44,.55),var(--accent));
  transition:width .9s var(--ease);
}
.reveal.is-in .cmp-fill{width:var(--w);}
.cmp-note{margin-top:16px;font-size:13px;color:var(--muted);}

/* ---------- Ordered steps ---------- */
.steps{margin-top:8px;}
.step{display:grid;grid-template-columns:72px 1fr;gap:20px;padding:22px 0;border-bottom:1px solid var(--line);}
.step:first-child{border-top:1px solid var(--line);}
.step-no{font-family:var(--mono);font-size:20px;font-weight:700;color:var(--accent);letter-spacing:.02em;}
.step p{font-size:15px;color:var(--muted);line-height:1.8;}

/* ---------- Data strip ---------- */
.data-strip{
  display:grid;grid-template-columns:repeat(3,1fr);
  border:1px solid var(--line);border-radius:var(--radius);background:var(--card);margin-top:26px;
}
.data-strip .item{padding:26px 24px;border-right:1px solid var(--line);}
.data-strip .item:last-child{border-right:0;}
.data-strip .item::before{content:"";display:block;width:24px;height:2px;background:var(--accent);margin-bottom:16px;}
.data-strip b{display:block;font-family:var(--mono);font-size:40px;font-weight:700;line-height:1.1;letter-spacing:-.01em;}
.data-strip b span{font-size:16px;font-weight:600;margin-left:4px;}
.data-strip small{display:block;margin-top:8px;font-size:13px;color:var(--muted);letter-spacing:.04em;}

/* ---------- Form ---------- */
.form-panel{
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius);
  padding:40px;box-shadow:var(--shadow-1);
}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:22px;}
.field{display:flex;flex-direction:column;gap:8px;}
.field.full{grid-column:1 / -1;}
.field label{font-size:13px;color:var(--muted);letter-spacing:.04em;font-weight:600;}
.field input,.field select,.field textarea{
  height:48px;padding:0 14px;background:#FDFCFA;border:1px solid var(--line);
  border-radius:var(--radius-btn);font-size:15px;
  transition:border-color .24s var(--ease),box-shadow .24s var(--ease),background-color .24s var(--ease);
}
.field textarea{height:132px;padding:12px 14px;line-height:1.7;resize:vertical;}
.field input:hover,.field select:hover,.field textarea:hover{border-color:#CFC7B9;}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;border-color:var(--accent);background:#fff;
  box-shadow:0 0 0 2px rgba(192,91,44,.18);
}
.form-actions{margin-top:26px;display:flex;align-items:center;gap:20px;flex-wrap:wrap;}
.form-privacy{margin-top:18px;font-size:13px;color:var(--muted);line-height:1.7;}
.form-aside{margin-top:28px;padding-top:22px;border-top:1px solid var(--line);display:flex;gap:32px;flex-wrap:wrap;}
.form-aside div{font-size:13px;color:var(--muted);}
.form-aside b{display:block;font-family:var(--mono);font-size:15px;color:var(--ink);font-weight:700;margin-top:2px;}

/* ---------- Footer ---------- */
.site-footer{background:var(--ink);color:#D9DFDB;margin-top:96px;padding:72px 0 0;}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:48px;padding-bottom:48px;}
.site-footer h4{font-size:14px;font-weight:600;color:#fff;letter-spacing:.06em;margin-bottom:18px;}
.site-footer p{font-size:14px;color:#AEBAB4;line-height:1.8;}
.brand-line{display:flex;align-items:center;gap:9px;font-size:18px;font-weight:800;color:#fff;margin-bottom:16px;}
.brand-line .logo-mark{background:var(--accent);color:#fff;}
.footer-links li{margin-bottom:10px;}
.footer-links a{font-size:14px;color:#AEBAB4;border-bottom:1px solid transparent;padding-bottom:2px;transition:color .24s var(--ease),border-color .24s var(--ease);}
.footer-links a:hover{color:#fff;border-bottom-color:var(--accent);}
.footer-sub{display:flex;gap:10px;margin-top:14px;}
.footer-sub input{
  flex:1;height:44px;padding:0 14px;border-radius:var(--radius-btn);
  border:1px solid rgba(255,255,255,.18);background:rgba(255,255,255,.06);color:#fff;font-size:14px;
}
.footer-sub input::placeholder{color:#8A968F;}
.footer-sub input:focus{outline:none;border-color:var(--accent);box-shadow:0 0 0 2px rgba(192,91,44,.28);}
.footer-sub button{
  height:44px;padding:0 20px;border:0;border-radius:var(--radius-btn);
  background:var(--accent);color:#fff;font-size:14px;font-weight:600;cursor:pointer;
  transition:background-color .24s var(--ease),transform .24s var(--ease);
}
.footer-sub button:hover{background:var(--accent-dark);transform:translateY(-1px);}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.12);padding:22px 0 28px;
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:#8E9A94;
}

/* ---------- Reveal ---------- */
.reveal{opacity:0;transform:translateY(16px);transition:opacity .52s var(--ease),transform .52s var(--ease);}
.reveal.is-in{opacity:1;transform:none;}

@media (prefers-reduced-motion:reduce){
  *{animation:none !important;transition:none !important;}
  .reveal{opacity:1;transform:none;}
  html{scroll-behavior:auto;}
}

/* ---------- Responsive ---------- */
@media screen and (max-width:1023px){
  .section{padding:72px 0;}
  .page-hero-inner{grid-template-columns:1fr;gap:36px;min-height:0;padding:44px 0;}
  .page-hero h1{font-size:40px;}
  .layout{grid-template-columns:1fr;gap:0;padding:64px 0 72px;}
  .toc{position:static;margin-bottom:40px;padding-bottom:28px;border-bottom:1px solid var(--line);}
  .toc ul{display:flex;flex-wrap:wrap;gap:6px;border-left:0;}
  .toc li a{padding:8px 14px;border:1px solid var(--line);border-radius:999px;margin-left:0;}
  .toc li a:hover{padding-left:14px;border-color:rgba(192,91,44,.4);}
  .toc li a.is-current{border-color:var(--accent);}
  .toc-note{max-width:420px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:36px;}
  .main-nav{
    position:fixed;top:0;left:0;bottom:0;width:280px;max-width:84vw;
    background:#fff;flex-direction:column;align-items:stretch;gap:0;
    padding:84px 0 24px;transform:translateX(-102%);
    transition:transform .32s var(--ease);box-shadow:var(--shadow-2);z-index:60;
  }
  .main-nav.is-open{transform:translateX(0);}
  .main-nav a{padding:16px 24px;border-bottom:1px solid var(--line);font-size:16px;}
  .main-nav a::after{display:none;}
  .main-nav a.is-active{color:var(--accent);background:rgba(192,91,44,.05);}
  .nav-toggle{
    display:flex;flex-direction:column;justify-content:center;gap:5px;
    width:44px;height:44px;padding:0 11px;background:transparent;
    border:1px solid var(--line);border-radius:var(--radius-btn);cursor:pointer;
  }
  .nav-toggle i,.nav-toggle i::before,.nav-toggle i::after{
    content:"";display:block;height:2px;background:var(--ink);border-radius:2px;transition:transform .24s var(--ease),opacity .24s var(--ease);
  }
  .nav-toggle i{position:relative;width:100%;}
  .nav-toggle i::before{position:absolute;top:-6px;width:100%;}
  .nav-toggle i::after{position:absolute;top:6px;width:100%;}
  .nav-toggle[aria-expanded="true"] i{background:transparent;}
  .nav-toggle[aria-expanded="true"] i::before{transform:translateY(6px) rotate(45deg);}
  .nav-toggle[aria-expanded="true"] i::after{transform:translateY(-6px) rotate(-45deg);}
}
@media screen and (max-width:767px){
  .container{padding:0 20px;}
  .section{padding:56px 0;}
  .section-tight{padding:48px 0;}
  .section-title{font-size:28px;}
  .page-hero h1{font-size:32px;line-height:1.25;}
  .hero-sub{font-size:16px;}
  .content-flow h2{font-size:26px;}
  .content-flow section{padding-bottom:52px;margin-bottom:52px;}
  .data-strip{grid-template-columns:1fr;}
  .data-strip .item{border-right:0;border-bottom:1px solid var(--line);}
  .data-strip .item:last-child{border-bottom:0;}
  .data-strip b{font-size:32px;}
  .step{grid-template-columns:52px 1fr;gap:14px;}
  .form-panel{padding:26px 22px;}
  .form-grid{grid-template-columns:1fr;gap:18px;}
  .form-actions .btn{width:100%;}
  .footer-grid{grid-template-columns:1fr;gap:32px;}
  .footer-bottom{flex-direction:column;}
  .hero-meta{gap:22px;}
  .hero-meta b{font-size:19px;}
  .site-footer{margin-top:64px;padding-top:56px;}
}
@media screen and (max-width:520px){
  .page-hero h1{font-size:30px;}
  .section-title{font-size:24px;}
  .logo{font-size:17px;}
  .logo-mark{font-size:13px;padding:2px 7px;}
  .nav-actions .btn{display:none;}
  .cmp-head em{font-size:18px;}
}

/* roulang page: category1 */
:root{
  --ink:#16302A;
  --ink-soft:#1F3E36;
  --accent:#C05B2C;
  --accent-dark:#A84C22;
  --muted:#6E7F78;
  --line:#E4DFD6;
  --paper:#F6F4F0;
  --card:#FFFFFF;
  --radius-card:6px;
  --radius-btn:4px;
  --shadow-1:0 1px 2px rgba(20,23,26,.04);
  --shadow-2:0 8px 24px -12px rgba(20,23,26,.10);
  --mono:ui-monospace,"SFMono-Regular",Menlo,Consolas,"Liberation Mono","Courier New",monospace;
  --sans:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC",sans-serif;
  --sec-space:104px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--paper);
  color:var(--ink);
  font-family:var(--sans);
  font-size:16px;
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0;}
a{color:inherit;text-decoration:none;}
button,input,select,textarea{font:inherit;color:inherit;}
ul,ol,li{list-style:none;margin:0;padding:0;}
h1,h2,h3,h4,p{margin:0;}
:focus-visible{outline:2px solid var(--accent);outline-offset:3px;}
::selection{background:rgba(192,91,44,.18);}

.container{
  width:100%;
  max-width:1200px;
  margin:0 auto;
  padding:0 24px;
}
.section{padding:var(--sec-space) 0;}
.section-tight{padding:72px 0;}
.section-head{max-width:760px;margin-bottom:48px;}
.eyebrow{
  display:inline-block;
  font-size:12px;
  letter-spacing:.08em;
  color:var(--muted);
  text-transform:uppercase;
  margin-bottom:14px;
}
.eyebrow.line{position:relative;padding-left:26px;}
.eyebrow.line::before{
  content:"";position:absolute;left:0;top:50%;width:18px;height:1px;background:var(--accent);
}
h1,.h1{font-size:54px;line-height:1.15;font-weight:800;letter-spacing:-.02em;}
h2,.h2{font-size:36px;line-height:1.3;font-weight:700;letter-spacing:-.01em;}
h3,.h3{font-size:20px;line-height:1.5;font-weight:600;}
.lead{font-size:17px;line-height:1.9;color:var(--muted);}
.muted{color:var(--muted);}
.num{font-family:var(--mono);font-variant-numeric:tabular-nums;}

/* buttons */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 26px;
  border:1px solid transparent;border-radius:var(--radius-btn);
  font-size:15px;font-weight:600;letter-spacing:.01em;
  cursor:pointer;transition:background-color .24s ease,color .24s ease,border-color .24s ease,transform .24s ease,box-shadow .24s ease;
  text-align:center;
}
.btn-primary{background:var(--accent);color:#fff;}
.btn-primary:hover{background:var(--accent-dark);transform:translateY(-1px);box-shadow:var(--shadow-2);}
.btn-primary:active{transform:translateY(0);}
.btn-outline{background:transparent;color:var(--ink);border-color:var(--ink);}
.btn-outline:hover{background:var(--ink);color:#fff;transform:translateY(-1px);}
.btn-outline:active{transform:translateY(0);}
.btn-sm{height:40px;padding:0 18px;font-size:14px;}
.btn-block{width:100%;}
.link-arrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:15px;font-weight:600;color:var(--ink);
  position:relative;padding-bottom:2px;
}
.link-arrow::after{
  content:"";position:absolute;left:0;right:22px;bottom:0;height:1px;background:currentColor;
  transform:scaleX(0);transform-origin:left;transition:transform .24s ease;
}
.link-arrow span.arw{transition:transform .24s ease;color:var(--accent);font-size:16px;}
.link-arrow:hover{color:var(--accent);}
.link-arrow:hover::after{transform:scaleX(1);}
.link-arrow:hover span.arw{transform:translateX(3px);}
.link-arrow.light{color:#fff;}
.link-arrow.light:hover{color:#fff;}

/* header */
.site-header{
  position:sticky;top:0;z-index:70;
  background:rgba(246,244,240,.94);
  backdrop-filter:saturate(140%) blur(10px);
  border-bottom:1px solid var(--line);
}
.nav-wrap{display:flex;align-items:center;justify-content:space-between;gap:24px;height:72px;}
.logo{
  display:flex;align-items:center;gap:10px;
  font-size:17px;font-weight:800;letter-spacing:-.01em;color:var(--ink);
  white-space:nowrap;
}
.logo-mark{
  display:inline-block;
  background:var(--ink);color:#fff;
  font-size:13px;font-weight:700;letter-spacing:.06em;
  padding:4px 8px;border-radius:4px;line-height:1.2;
}
.main-nav{display:flex;align-items:center;gap:6px;}
.main-nav a{
  position:relative;
  padding:8px 14px;
  font-size:15px;font-weight:500;letter-spacing:.02em;
  color:var(--muted);
  transition:color .24s ease;
}
.main-nav a::after{
  content:"";position:absolute;left:14px;right:14px;bottom:0;height:2px;
  background:var(--accent);transform:scaleX(0);transform-origin:center;
  transition:transform .24s ease;
}
.main-nav a:hover{color:var(--ink);}
.main-nav a:hover::after{transform:scaleX(1);}
.main-nav a.is-active{color:var(--ink);font-weight:600;}
.main-nav a.is-active::after{transform:scaleX(1);}
.nav-actions{display:flex;align-items:center;gap:12px;}
.nav-toggle{
  display:none;width:42px;height:42px;padding:0;
  background:transparent;border:1px solid var(--line);border-radius:var(--radius-btn);
  align-items:center;justify-content:center;cursor:pointer;
}
.nav-toggle i,.nav-toggle i::before,.nav-toggle i::after{
  display:block;width:18px;height:2px;background:var(--ink);border-radius:2px;
  transition:transform .24s ease,opacity .24s ease;
}
.nav-toggle i{position:relative;}
.nav-toggle i::before,.nav-toggle i::after{content:"";position:absolute;left:0;}
.nav-toggle i::before{top:-6px;}
.nav-toggle i::after{top:6px;}
.nav-toggle[aria-expanded="true"] i{background:transparent;}
.nav-toggle[aria-expanded="true"] i::before{transform:translateY(6px) rotate(45deg);}
.nav-toggle[aria-expanded="true"] i::after{transform:translateY(-6px) rotate(-45deg);}
.drawer-mask{
  position:fixed;inset:0;background:rgba(22,48,42,.36);
  opacity:0;visibility:hidden;transition:opacity .3s ease,visibility .3s ease;z-index:55;
}
.drawer-mask.is-open{opacity:1;visibility:visible;}

/* hero */
.page-hero{
  position:relative;
  padding:72px 0 64px;
  min-height:320px;
  border-bottom:1px solid var(--line);
  background-image:linear-gradient(rgba(228,223,214,.55) 1px,transparent 1px),linear-gradient(90deg,rgba(228,223,214,.55) 1px,transparent 1px);
  background-size:56px 56px,56px 56px;
  overflow:hidden;
}
.page-hero::before{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(246,244,240,.86),rgba(246,244,240,.98));
  pointer-events:none;
}
.page-hero .container{position:relative;z-index:1;}
.crumb{
  display:flex;align-items:center;gap:8px;flex-wrap:wrap;
  font-size:13px;color:var(--muted);margin-bottom:20px;
}
.crumb a:hover{color:var(--accent);}
.crumb .sep{color:var(--line);}
.hero-grid{display:grid;grid-template-columns:1.08fr .92fr;gap:56px;align-items:center;}
.hero-copy h1{font-size:48px;margin-bottom:18px;}
.hero-copy .lead{max-width:34em;margin-bottom:28px;}
.hero-cta{display:flex;align-items:center;gap:26px;flex-wrap:wrap;}
.hero-media{position:relative;}
.media-frame{
  position:relative;border-radius:var(--radius-card);overflow:hidden;
  border:1px solid var(--line);background:var(--card);
  box-shadow:var(--shadow-1);
}
.media-frame img{
  width:100%;height:100%;object-fit:cover;
  filter:saturate(.92);
  transition:transform .5s cubic-bezier(.22,.61,.36,1);
}
.media-frame::after{
  content:"";position:absolute;inset:0;background:rgba(22,48,42,.08);pointer-events:none;
}
.media-frame:hover img{transform:scale(1.03);}
.ratio-4x3{aspect-ratio:4/3;}
.ratio-16x9{aspect-ratio:16/9;}
.float-card{
  position:absolute;right:-14px;bottom:-20px;
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius-card);
  padding:16px 20px;box-shadow:var(--shadow-2);
  min-width:186px;
}
.float-card .fc-value{font-family:var(--mono);font-size:26px;font-weight:700;color:var(--accent);line-height:1.1;}
.float-card .fc-label{font-size:12px;letter-spacing:.06em;color:var(--muted);margin-top:4px;}

/* generic cards */
.grid-cards{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius-card);
  padding:24px;box-shadow:var(--shadow-1);
  transition:transform .24s ease,box-shadow .24s ease,border-color .24s ease;
}
.card:hover{transform:translateY(-3px);box-shadow:var(--shadow-2);border-color:rgba(192,91,44,.3);}
.badge{
  display:inline-block;
  font-size:12px;letter-spacing:.06em;color:var(--muted);
  background:rgba(110,127,120,.10);
  border-radius:999px;padding:4px 10px;
}
.badge.accent{color:var(--accent);background:transparent;border:1px solid rgba(192,91,44,.4);}

/* prose */
.prose{max-width:44em;}
.prose p{font-size:17px;line-height:1.9;margin-bottom:22px;color:#243B35;}
.prose p:last-child{margin-bottom:0;}
.prose h3{margin:36px 0 14px;}
.prose a{color:var(--accent);border-bottom:1px solid rgba(192,91,44,.35);}
.prose a:hover{border-color:var(--accent);}
.pull-quote{
  border-left:3px solid var(--accent);
  padding:6px 0 6px 22px;
  margin:32px 0;
  font-size:17px;line-height:1.9;color:var(--ink);font-weight:500;
}
.wide-figure{margin:0 0 40px;}
.wide-figure figcaption{font-size:13px;color:var(--muted);margin-top:10px;}

/* numbered list */
.num-list{display:grid;grid-template-columns:repeat(2,1fr);gap:0;border-top:1px solid var(--line);}
.num-item{
  display:flex;gap:20px;
  padding:30px 28px 30px 0;
  border-bottom:1px solid var(--line);
  transition:background-color .24s ease;
}
.num-item:nth-child(odd){padding-right:36px;border-right:1px solid var(--line);}
.num-item:nth-child(even){padding-left:36px;}
.num-item .idx{
  font-family:var(--mono);font-size:15px;font-weight:700;color:var(--accent);
  padding-top:3px;flex:0 0 auto;
}
.num-item h3{margin-bottom:8px;font-size:19px;}
.num-item p{font-size:15px;line-height:1.8;color:var(--muted);}
.num-item:hover{background:rgba(192,91,44,.03);}

/* data strip */
.data-strip{
  display:grid;grid-template-columns:repeat(3,1fr);
  border-top:1px solid var(--line);border-bottom:1px solid var(--line);
}
.data-strip .dc{
  padding:36px 28px;position:relative;
}
.data-strip .dc+.dc{border-left:1px solid var(--line);}
.data-strip .dc::before{
  content:"";position:absolute;top:-1px;left:28px;width:34px;height:2px;background:var(--accent);
}
.data-strip .dc .v{font-family:var(--mono);font-size:46px;font-weight:700;line-height:1.05;letter-spacing:-.02em;}
.data-strip .dc .u{font-family:var(--mono);font-size:18px;font-weight:700;color:var(--accent);margin-left:4px;}
.data-strip .dc .l{font-size:13px;letter-spacing:.06em;color:var(--muted);margin-top:8px;}
.data-strip .dc p{font-size:14px;color:var(--muted);margin-top:12px;line-height:1.75;}

/* table */
.tbl-wrap{overflow-x:auto;border-radius:var(--radius-card);}
table.min-tbl{width:100%;border-collapse:collapse;min-width:640px;}
table.min-tbl th,table.min-tbl td{
  text-align:left;padding:16px 18px;font-size:15px;vertical-align:top;
  border-bottom:1px solid var(--line);
}
table.min-tbl thead th{
  font-size:13px;letter-spacing:.06em;color:var(--muted);font-weight:600;
  border-bottom:1px solid var(--ink);
}
table.min-tbl tbody tr:hover{background:rgba(192,91,44,.03);}
table.min-tbl td:first-child{font-weight:600;color:var(--ink);width:26%;}

/* faq */
.faq-acc{border-top:1px solid var(--line);}
.faq-acc .accordion-item{border:0;background:transparent;}
.faq-acc .accordion-title{
  position:relative;
  padding:22px 52px 22px 0;
  font-size:17px;font-weight:600;color:var(--ink);
  border-top:0;border-bottom:1px solid var(--line);
  background:transparent;
  transition:color .24s ease;
}
.faq-acc .accordion-title:hover{color:var(--accent);}
.faq-acc .accordion-title::after{
  content:"+";
  position:absolute;right:8px;top:50%;transform:translateY(-50%);
  font-size:22px;font-weight:400;color:var(--accent);line-height:1;
  transition:transform .24s ease;
}
.faq-acc .accordion-title[aria-expanded="true"]::after{content:"×";}
.faq-acc .accordion-content{
  padding:0 40px 24px 0;
  border:0!important;
  font-size:15px;line-height:1.85;color:var(--muted);
  background:transparent;
}
.faq-acc .accordion-content p{margin-bottom:12px;}
.faq-acc .accordion-content p:last-child{margin-bottom:0;}

/* cta band */
.cta-band{
  background:var(--ink);color:#fff;
  border-radius:var(--radius-card);
  padding:56px 56px;
  position:relative;overflow:hidden;
}
.cta-band::before{
  content:"";position:absolute;right:-60px;top:-60px;width:260px;height:260px;border-radius:50%;
  background:radial-gradient(circle,rgba(192,91,44,.34),transparent 68%);
}
.cta-band .cb-grid{position:relative;z-index:1;display:grid;grid-template-columns:1.4fr .6fr;gap:32px;align-items:center;}
.cta-band h2{color:#fff;margin-bottom:14px;}
.cta-band p{color:rgba(255,255,255,.76);font-size:16px;line-height:1.8;max-width:36em;}
.cta-band .btn-primary{background:var(--accent);}
.cta-band .btn-primary:hover{background:#D06A38;}
.cta-line{display:flex;gap:16px;flex-wrap:wrap;justify-content:flex-end;}

/* form */
.form-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:20px;}
.field{display:flex;flex-direction:column;}
.field.full{grid-column:1 / -1;}
.field label{font-size:13px;letter-spacing:.04em;color:var(--muted);margin-bottom:8px;}
.field input,.field select,.field textarea{
  height:48px;padding:0 14px;
  background:var(--card);
  border:1px solid var(--line);border-radius:var(--radius-btn);
  font-size:15px;
  transition:border-color .24s ease,box-shadow .24s ease;
}
.field textarea{height:120px;padding:12px 14px;line-height:1.7;resize:vertical;}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;border-color:var(--accent);box-shadow:0 0 0 3px rgba(192,91,44,.14);
}
.form-note{font-size:13px;color:var(--muted);margin-top:14px;}

/* footer */
.site-footer{background:var(--ink);color:rgba(255,255,255,.78);margin-top:var(--sec-space);}
.site-footer .container{padding-top:72px;padding-bottom:32px;}
.footer-grid{
  display:grid;grid-template-columns:1.5fr .8fr .9fr 1fr;gap:40px;
  padding-bottom:44px;border-bottom:1px solid rgba(255,255,255,.14);
}
.brand-line{
  display:flex;align-items:center;gap:10px;
  font-size:17px;font-weight:800;color:#fff;margin-bottom:16px;
}
.site-footer .logo-mark{background:var(--accent);}
.site-footer p{font-size:14px;line-height:1.85;color:rgba(255,255,255,.66);}
.site-footer h4{font-size:14px;letter-spacing:.06em;color:#fff;margin-bottom:18px;font-weight:600;}
.footer-links li{margin-bottom:12px;}
.footer-links a{
  font-size:14px;color:rgba(255,255,255,.72);position:relative;
  transition:color .24s ease;
}
.footer-links a::after{
  content:"";position:absolute;left:0;right:0;bottom:-3px;height:1px;background:var(--accent);
  transform:scaleX(0);transform-origin:left;transition:transform .24s ease;
}
.footer-links a:hover{color:#fff;}
.footer-links a:hover::after{transform:scaleX(1);}
.footer-sub{display:flex;gap:8px;margin-top:14px;}
.footer-sub input{
  flex:1 1 auto;height:44px;padding:0 12px;
  background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.18);border-radius:var(--radius-btn);
  color:#fff;font-size:14px;
}
.footer-sub input::placeholder{color:rgba(255,255,255,.42);}
.footer-sub input:focus{outline:none;border-color:var(--accent);box-shadow:0 0 0 3px rgba(192,91,44,.2);}
.footer-sub button{
  height:44px;padding:0 18px;border:0;border-radius:var(--radius-btn);
  background:var(--accent);color:#fff;font-size:14px;font-weight:600;cursor:pointer;
  transition:background-color .24s ease,transform .24s ease;
}
.footer-sub button:hover{background:#D06A38;transform:translateY(-1px);}
.footer-bottom{
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  padding-top:24px;font-size:13px;color:rgba(255,255,255,.5);
}

/* reveal */
.reveal{opacity:0;transform:translateY(16px);transition:opacity .52s cubic-bezier(.22,.61,.36,1),transform .52s cubic-bezier(.22,.61,.36,1);}
.reveal.is-in{opacity:1;transform:none;}

/* responsive */
@media (max-width:1024px){
  :root{--sec-space:84px;}
  h1,.h1{font-size:42px;}
  h2,.h2{font-size:30px;}
  .hero-grid{grid-template-columns:1fr;gap:40px;}
  .hero-copy h1{font-size:38px;}
  .grid-cards{grid-template-columns:repeat(2,1fr);}
  .footer-grid{grid-template-columns:repeat(2,1fr);gap:32px;}
  .cta-band{padding:44px 36px;}
  .cta-band .cb-grid{grid-template-columns:1fr;}
  .cta-line{justify-content:flex-start;}
  .main-nav{
    position:fixed;top:0;left:0;bottom:0;width:290px;max-width:84vw;
    background:var(--card);
    flex-direction:column;align-items:stretch;gap:0;
    padding:88px 0 24px;
    transform:translateX(-102%);
    transition:transform .32s cubic-bezier(.22,.61,.36,1);
    box-shadow:0 8px 24px -12px rgba(20,23,26,.10);
    z-index:60;overflow-y:auto;
  }
  .main-nav.is-open{transform:translateX(0);}
  .main-nav a{padding:16px 24px;font-size:16px;border-bottom:1px solid var(--line);}
  .main-nav a::after{display:none;}
  .main-nav a.is-active{background:rgba(192,91,44,.06);}
  .nav-toggle{display:inline-flex;}
  .nav-actions .btn-outline{display:none;}
}
@media (max-width:768px){
  :root{--sec-space:64px;}
  .container{padding:0 20px;}
  .nav-wrap{height:60px;}
  .logo{font-size:15px;}
  h1,.h1{font-size:32px;line-height:1.25;}
  .hero-copy h1{font-size:30px;}
  h2,.h2{font-size:26px;}
  .page-hero{padding:48px 0 52px;min-height:0;}
  .float-card{right:12px;bottom:12px;}
  .num-list{grid-template-columns:1fr;}
  .num-item,.num-item:nth-child(odd),.num-item:nth-child(even){
    padding:24px 0;border-right:0;
  }
  .data-strip{grid-template-columns:1fr;}
  .data-strip .dc+.dc{border-left:0;border-top:1px solid var(--line);}
  .data-strip .dc{padding:26px 0;}
  .data-strip .dc::before{left:0;}
  .data-strip .dc .v{font-size:36px;}
  .form-grid{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr;}
  .cta-band{padding:32px 24px;}
  .btn{width:100%;}
  .cta-band .btn,.hero-cta .btn{width:100%;}
  .hero-cta{flex-direction:column;align-items:stretch;gap:16px;}
  .link-arrow{justify-content:center;}
  .footer-sub{flex-direction:column;}
  .footer-sub button{width:100%;}
}
@media (max-width:520px){
  h1,.h1{font-size:28px;}
  .hero-copy h1{font-size:26px;}
  .grid-cards{grid-template-columns:1fr;}
  .float-card{position:static;margin-top:14px;right:auto;bottom:auto;}
}
@media (prefers-reduced-motion:reduce){
  *{animation-duration:.001ms!important;transition-duration:.001ms!important;scroll-behavior:auto!important;}
  .reveal{opacity:1;transform:none;}
}