/* ============================================================
   YUNCHA — China Healthcare Support
   Standalone stylesheet. Does not affect the Onsight site.
   Palette reuses the site's warm neutral base for visual continuity.
   ============================================================ */

:root{
  --bg:#FFFFFF;
  --bg-warm:#F8F6F2;
  --ink:#1F2A37;
  --ink-soft:#3C4653;
  --muted:#6B7280;
  --line:#E8E4DD;
  --gold:#B8A88A;
  --gold-dark:#94836A;
  --blue:#1B3A5C;
  --notice:#FBF7EE;
  --notice-line:#E3D6B8;
  --max:1120px;
}

*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  font-family:'Inter',-apple-system,'Helvetica Neue',Arial,sans-serif;
  background:var(--bg);color:var(--ink);
  font-size:16.5px;line-height:1.72;
  -webkit-font-smoothing:antialiased;
}
::selection{background:#EBE4D4}
a{color:inherit;text-decoration:none}
ul{list-style:none}
img{max-width:100%;display:block}
.container{max-width:var(--max);margin:0 auto;padding:0 26px}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:50;
  background:rgba(255,255,255,.94);
  backdrop-filter:saturate(160%) blur(10px);
  border-bottom:1px solid var(--line);
}
.header-inner{display:flex;align-items:center;justify-content:space-between;gap:20px;height:76px}
.brand{display:flex;flex-direction:column;line-height:1.15;flex-shrink:0}
.brand-name{font-size:19px;font-weight:600;letter-spacing:.22em;text-transform:uppercase;color:var(--ink)}
.brand-tag{font-size:10.5px;letter-spacing:.15em;text-transform:uppercase;color:var(--muted);margin-top:3px}
.site-nav{display:flex;align-items:center;gap:30px}
.site-nav a{font-size:14px;color:var(--ink-soft);letter-spacing:.01em;transition:color .2s}
.site-nav a:hover{color:var(--gold-dark)}
.site-nav a.is-here{color:var(--ink);font-weight:500;box-shadow:0 2px 0 var(--gold)}
.nav-cta{
  padding:10px 20px;border:1px solid var(--ink);border-radius:2px;
  font-size:13.5px;font-weight:500;transition:.2s;
}
.nav-cta:hover{background:var(--ink);color:#fff}
.lang-switch{
  font-size:13px;padding:7px 14px;border:1px solid var(--line);border-radius:999px;
  color:var(--ink-soft);white-space:nowrap;transition:color .2s,border-color .2s;
}
.lang-switch:hover{color:var(--gold-dark);border-color:var(--gold)}
.photo-band{margin:34px 0 0}
.photo-band img{
  width:100%;height:auto;display:block;border-radius:6px;
  box-shadow:0 10px 30px rgba(42,42,42,.10);
}
.photo-band figcaption{
  margin-top:10px;font-size:12.5px;line-height:1.6;color:var(--ink-soft);
}
.nav-toggle{display:none;background:none;border:1px solid var(--line);border-radius:2px;padding:9px 12px;font-size:13px;color:var(--ink-soft);cursor:pointer}

/* ---------- typography ---------- */
.eyebrow{
  display:inline-flex;align-items:center;gap:11px;
  font-size:10.5px;font-weight:600;letter-spacing:.24em;
  text-transform:uppercase;color:var(--gold-dark);margin-bottom:18px;
}
.eyebrow::before{content:'';width:26px;height:1px;background:var(--gold)}
h1{font-size:clamp(33px,4.4vw,56px);font-weight:300;line-height:1.1;letter-spacing:-.028em;color:var(--ink)}
h2{font-size:clamp(25px,3vw,38px);font-weight:300;line-height:1.18;letter-spacing:-.02em;color:var(--ink)}
h3{font-size:17.5px;font-weight:600;line-height:1.4;color:var(--ink)}
h4{font-size:15px;font-weight:600;line-height:1.4;color:var(--ink)}
.lede{font-size:clamp(17px,1.7vw,20px);color:var(--ink-soft);line-height:1.68;max-width:60ch}
p{color:var(--ink-soft)}
.fineprint{font-size:13.5px;color:var(--muted);line-height:1.78}
.subhead{font-size:16.5px;color:var(--muted);line-height:1.7;max-width:58ch}

/* ---------- hero ---------- */
.hero{background:var(--bg-warm);padding:78px 0 72px;border-bottom:1px solid var(--line)}
.hero .lede{margin-top:22px}
.hero-kicker{
  font-size:clamp(17px,1.8vw,21px);font-weight:400;color:var(--ink);
  line-height:1.55;max-width:34ch;margin-top:26px;letter-spacing:-.005em;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:34px}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:9px;
  padding:15px 28px;border-radius:2px;font-size:14.5px;font-weight:500;
  letter-spacing:.01em;transition:.2s;border:1px solid transparent;
}
.btn-primary{background:var(--ink);color:#fff}
.btn-primary:hover{background:#0F1620}
.btn-ghost{background:transparent;color:var(--ink);border-color:#CFC8BC}
.btn-ghost:hover{border-color:var(--ink);background:#fff}
.btn-gold{background:var(--gold);color:#2A2418}
.btn-gold:hover{background:var(--gold-dark);color:#fff}
.btn-sm{padding:11px 20px;font-size:13.5px}

/* ---------- sections ---------- */
.section{padding:74px 0}
.section.tight{padding:56px 0}
.section.warm{background:var(--bg-warm)}
.section-head{max-width:62ch;margin-bottom:44px}
.section-head h2{margin-top:0;margin-bottom:15px}

/* ---------- fact cards ---------- */
.facts{display:grid;grid-template-columns:repeat(2,1fr);gap:20px}
.fact{
  background:#fff;border:1px solid var(--line);border-radius:2px;
  padding:28px 26px;
}
.fact-num{
  font-size:clamp(27px,3.2vw,38px);font-weight:300;letter-spacing:-.03em;
  color:var(--blue);line-height:1.1;margin-bottom:8px;
}
.fact-label{font-size:12px;font-weight:600;letter-spacing:.13em;text-transform:uppercase;color:var(--gold-dark);margin-bottom:12px}
.fact p{font-size:15px;line-height:1.65}
.fact p + p{margin-top:10px}

/* ---------- source list ---------- */
.sources{display:grid;gap:14px;margin-top:26px}
.source{
  display:flex;align-items:flex-start;gap:16px;
  padding:20px 22px;background:#fff;border:1px solid var(--line);
  border-left:2px solid var(--gold);border-radius:2px;
  transition:.2s;
}
.source:hover{border-left-color:var(--ink);box-shadow:0 2px 14px rgba(31,42,55,.06)}
.source-body{flex:1;min-width:0}
.source-name{font-size:14.5px;font-weight:600;color:var(--ink);margin-bottom:4px}
.source-url{font-size:12.5px;color:var(--muted);word-break:break-all;line-height:1.5}
.source-arrow{font-size:13px;color:var(--gold-dark);flex-shrink:0;margin-top:2px}

/* ---------- how / steps ---------- */
.cols{display:grid;grid-template-columns:repeat(2,1fr);gap:26px}
.cols-3{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.card{
  background:#fff;border:1px solid var(--line);border-radius:2px;padding:26px 24px;
}
.card h3{margin-bottom:10px}
.card p{font-size:15px;line-height:1.66}
.section.warm .card{background:#fff}

.steps{counter-reset:s;display:grid;gap:0;margin-top:8px}
.step{
  counter-increment:s;position:relative;
  padding:24px 0 24px 62px;border-bottom:1px solid var(--line);
}
.step:last-child{border-bottom:0}
.step::before{
  content:counter(s,decimal-leading-zero);
  position:absolute;left:0;top:24px;
  font-size:13px;font-weight:600;letter-spacing:.1em;color:var(--gold-dark);
  width:42px;
}
.step h3{margin-bottom:8px}
.step p{font-size:15.2px;line-height:1.68;max-width:64ch}

/* ---------- list ---------- */
.tick{display:grid;gap:11px;margin-top:6px}
.tick li{
  position:relative;padding-left:24px;font-size:15.2px;line-height:1.62;color:var(--ink-soft);
}
.tick li::before{
  content:'';position:absolute;left:0;top:9px;
  width:7px;height:7px;border-radius:50%;background:var(--gold);
}
.tick.plain li::before{width:5px;height:5px;background:var(--muted);opacity:.5}

/* ---------- notice / disclaimer ---------- */
.notice{
  background:var(--notice);border:1px solid var(--notice-line);
  border-radius:2px;padding:26px 28px;margin-top:30px;
}
.notice h3{font-size:15px;letter-spacing:.02em;margin-bottom:12px;color:#5C4A22}
.notice p{font-size:14.5px;line-height:1.72;color:#5A4B2E}
.notice p + p{margin-top:10px}
.notice ul{margin-top:10px;display:grid;gap:8px}
.notice li{position:relative;padding-left:18px;font-size:14.5px;line-height:1.68;color:#5A4B2E}
.notice li::before{content:'—';position:absolute;left:0;color:var(--gold-dark)}

/* ---------- price ---------- */
.price-block{
  border:1px solid var(--line);border-top:3px solid var(--gold);
  background:#fff;padding:34px 30px;border-radius:2px;
}
.price-figure{font-size:clamp(30px,3.6vw,44px);font-weight:300;letter-spacing:-.03em;color:var(--ink);line-height:1.1}
.price-figure span{font-size:.5em;font-weight:400;color:var(--muted);letter-spacing:0}
.price-caption{font-size:13.5px;color:var(--muted);margin-top:8px}
.price-rows{margin-top:22px;border-top:1px solid var(--line);padding-top:20px;display:grid;gap:12px}
.price-row{display:flex;gap:16px;font-size:14.5px;line-height:1.62}
.price-row .k{flex:0 0 128px;color:var(--muted)}
.price-row .v{flex:1;color:var(--ink-soft)}

/* ---------- cta band ---------- */
.cta-band{background:var(--ink);color:#fff;padding:66px 0}
.cta-band h2{color:#fff;margin-bottom:16px}
.cta-band p{color:rgba(255,255,255,.78)}
.cta-band .btn-primary{background:#fff;color:var(--ink)}
.cta-band .btn-primary:hover{background:var(--gold);color:#2A2418}
.cta-band .btn-ghost{color:#fff;border-color:rgba(255,255,255,.4)}
.cta-band .btn-ghost:hover{background:rgba(255,255,255,.1)}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px}
.cta-note{font-size:13.5px;color:rgba(255,255,255,.6);margin-top:18px;max-width:60ch}

/* ---------- breadcrumb ---------- */
.crumb{font-size:12.5px;color:var(--muted);padding:18px 0 0;letter-spacing:.02em}
.crumb a{color:var(--muted)}
.crumb a:hover{color:var(--gold-dark)}
.crumb span{margin:0 8px;opacity:.5}

/* ---------- footer ---------- */
.site-footer{background:#17202B;color:#C9D1DA;padding:58px 0 30px;font-size:14px}
.footer-top{display:flex;flex-wrap:wrap;justify-content:space-between;gap:36px;padding-bottom:34px;border-bottom:1px solid rgba(255,255,255,.12)}
.footer-brand .brand-name{color:#fff;font-size:17px}
.footer-brand .brand-tag{color:rgba(255,255,255,.55)}
.footer-mission{max-width:52ch;margin-top:16px;font-size:13.5px;line-height:1.75;color:rgba(255,255,255,.66)}
.footer-links{display:flex;flex-wrap:wrap;gap:44px}
.footer-col h4{color:#fff;font-size:12px;letter-spacing:.14em;text-transform:uppercase;margin-bottom:14px;font-weight:600}
.footer-col li{margin-bottom:9px}
.footer-col a{font-size:13.5px;color:rgba(255,255,255,.72)}
.footer-col a:hover{color:var(--gold)}
.footer-relation{
  margin-top:26px;padding:18px 20px;border:1px solid rgba(255,255,255,.12);
  border-radius:2px;font-size:12.8px;line-height:1.72;color:rgba(255,255,255,.62);
}
.footer-relation strong{color:rgba(255,255,255,.86);font-weight:600}
.footer-bottom{
  display:flex;flex-wrap:wrap;justify-content:space-between;gap:12px;
  padding-top:24px;font-size:12.5px;color:rgba(255,255,255,.48);
}

/* ---------- responsive ---------- */
@media (max-width:900px){
  .facts{grid-template-columns:1fr}
  .cols,.cols-3{grid-template-columns:1fr}
  .header-inner{height:66px}
  .site-nav{
    position:absolute;left:0;right:0;top:66px;
    flex-direction:column;align-items:flex-start;gap:0;
    background:#fff;border-bottom:1px solid var(--line);
    padding:6px 26px 18px;display:none;
  }
  .site-nav.open{display:flex}
  .site-nav a{padding:12px 0;width:100%;border-bottom:1px solid var(--line)}
  .site-nav a.is-here{box-shadow:none;color:var(--gold-dark)}
  .nav-cta{margin-top:14px;text-align:center;border-color:var(--ink)}
  .nav-toggle{display:block}
  .hero{padding:52px 0 48px}
  .section{padding:52px 0}
  .section.tight{padding:42px 0}
  .step{padding-left:46px;padding-top:20px;padding-bottom:20px}
  .step::before{top:20px;width:32px}
  .price-row{flex-direction:column;gap:2px}
  .price-row .k{flex:none;font-size:12.5px;text-transform:uppercase;letter-spacing:.1em}
  .footer-links{gap:32px}
}
@media (max-width:520px){
  body{font-size:16px}
  .container{padding:0 20px}
  .btn{width:100%}
  .hero-actions,.cta-actions{flex-direction:column;align-items:stretch}
  .fact{padding:22px 20px}
  .notice{padding:22px 20px}
  .price-block{padding:26px 20px}
}

/* ============================================================
   Insights article body
   ============================================================ */
.prose{max-width:72ch}
.prose h2{
  font-size:21px;line-height:1.42;font-weight:600;letter-spacing:-.01em;
  color:var(--ink);margin:40px 0 14px;
}
.prose h2:first-child{margin-top:0}
.prose p{margin:0 0 18px;color:var(--ink-soft)}
.prose p:last-child{margin-bottom:0}
.prose ul{margin:0 0 22px;padding:0;list-style:none}
.prose li{position:relative;padding-left:26px;margin-bottom:13px;color:var(--ink-soft)}
.prose li::before{
  content:"";position:absolute;left:5px;top:11px;
  width:7px;height:7px;border-radius:50%;background:var(--gold);
}
.prose strong{color:var(--ink);font-weight:600}
a.card{transition:transform .18s ease, box-shadow .18s ease}
a.card:hover{transform:translateY(-2px);box-shadow:0 10px 28px rgba(31,42,55,.09)}
@media (max-width:760px){
  .prose h2{font-size:19px;margin-top:32px}
  .prose{max-width:none}
}