:root{
  --bg:#ffffff;
  --text:#111827;
  --muted:#4b5563;
  --line:#e5e7eb;
  --primary:#d91c1c;
  --card:#f8fafc;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family:Arial,Helvetica,sans-serif;
  background:var(--bg);
  color:var(--text);
  line-height:1.6;
}
img{max-width:100%;height:auto;display:block}
a{color:var(--primary);text-decoration:none}
a:hover{text-decoration:underline}
.container{max-width:1120px;margin:0 auto;padding:0 20px}
.site-header{
  position:sticky;top:0;background:rgba(255,255,255,.97);backdrop-filter:blur(8px);
  border-bottom:1px solid var(--line);z-index:50;
}
.header-inner{display:flex;align-items:center;justify-content:space-between;gap:24px;padding:14px 0}
.brand{display:flex;align-items:center;gap:14px;color:var(--text)}
.brand img{width:56px;height:56px;border-radius:14px}
.brand-title{display:block;font-weight:700;font-size:1.1rem}
.brand-subtitle{display:block;font-size:.9rem;color:var(--muted)}
.main-nav{display:flex;gap:18px;flex-wrap:wrap}
.main-nav a{color:var(--text);font-weight:600}
.hero{padding:38px 0 48px}
.hero-grid{display:grid;grid-template-columns:1.6fr 1fr;gap:32px;align-items:center}
.hero-card{
  background:linear-gradient(180deg,#fff,#f9fafb);
  border:1px solid var(--line);
  border-radius:28px;padding:28px;box-shadow:0 16px 45px rgba(0,0,0,.06)
}
.hero-card img{border-radius:20px}
.eyebrow{
  display:inline-block;padding:6px 12px;border:1px solid #fecaca;color:#b91c1c;
  border-radius:999px;background:#fff5f5;font-weight:700;font-size:.84rem
}
h1,h2,h3{line-height:1.15;margin:0 0 14px}
h1{font-size:2.7rem;max-width:900px}
h2{font-size:1.9rem;margin-top:6px}
h3{font-size:1.2rem}
.lead{font-size:1.12rem;color:var(--muted);max-width:860px}
.notice{
  margin-top:18px;padding:14px 16px;background:#fff7ed;border:1px solid #fed7aa;
  border-radius:16px;color:#9a3412;font-weight:600
}
.cta-row{display:flex;gap:14px;flex-wrap:wrap;margin:24px 0 10px}
.button{
  display:inline-flex;align-items:center;justify-content:center;background:var(--primary);color:#fff;
  padding:12px 18px;border-radius:14px;font-weight:700;border:1px solid var(--primary)
}
.button:hover{text-decoration:none;filter:brightness(.98)}
.button.secondary{background:#fff;color:var(--primary)}
.section{padding:14px 0 10px}
.feature-grid,.card-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.card-stack{display:grid;gap:18px}
.card,.feature{
  background:var(--card);border:1px solid var(--line);border-radius:22px;padding:22px;
  box-shadow:0 8px 22px rgba(15,23,42,.04)
}
.text-link{font-weight:700}
.prose{max-width:860px}
.prose p,.prose li{color:#374151}
.prose ul,.prose ol{padding-left:20px}
.article{padding-top:4px}
.article-cta{margin-top:28px}
.breadcrumbs{font-size:.92rem;color:var(--muted);margin-bottom:14px}
.site-footer{margin-top:40px;border-top:1px solid var(--line);background:#fafafa}
.footer-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;padding:28px 20px}
.footer-bottom{padding:0 20px 24px;color:var(--muted)}
@media (max-width: 900px){
  .hero-grid,.feature-grid,.card-grid,.footer-grid{grid-template-columns:1fr}
  h1{font-size:2.1rem}
  .header-inner{flex-direction:column;align-items:flex-start}
}