:root{
  --bg:#f4f7fb;
  --surface:#ffffff;
  --text:#1b2430;
  --muted:#586574;
  --line:#d7e2ee;
  --brand:#0a2a43;
  --brand-2:#154d79;
  --accent:#f08c22;
  --accent-soft:#fff4e8;
  --shadow:0 14px 34px rgba(10,42,67,.10);
  --radius:20px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,"Hiragino Kaku Gothic ProN","Yu Gothic",Meiryo,sans-serif;
  color:var(--text);
  background:var(--bg);
  line-height:1.8;
}
img{max-width:100%;display:block}
a{color:#1166c2;text-decoration:none}
a:hover{text-decoration:underline}
.container{width:min(1120px,calc(100% - 32px));margin:0 auto}
.site-header{
  background:linear-gradient(135deg,var(--brand),var(--brand-2));
  color:#fff;
  position:relative;
}
.site-header::after{
  content:"";
  position:absolute;
  inset:0;
  background:radial-gradient(circle at top right, rgba(255,255,255,.10), transparent 32%);
  pointer-events:none;
}
.topbar{
  position:relative;
  z-index:1;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:18px;
  padding:16px 0;
}
.brand{
  display:flex;
  align-items:center;
  gap:14px;
  color:#fff;
  font-weight:800;
  letter-spacing:.05em;
}
.brand img{width:176px;height:auto;background:#fff;border-radius:10px;padding:6px 8px}
.nav{
  display:flex;
  gap:18px;
  flex-wrap:wrap;
  justify-content:flex-end;
}
.nav a{color:#e9f1fb;font-size:14px}
.hero{
  position:relative;
  z-index:1;
  display:grid;
  grid-template-columns:minmax(0,1.25fr) minmax(280px,.95fr);
  gap:28px;
  align-items:center;
  padding:34px 0 54px;
}
.hero.compact{grid-template-columns:minmax(0,1fr) minmax(260px,.85fr)}
.hero-copy h1{
  margin:0 0 14px;
  font-size:clamp(34px,5vw,54px);
  line-height:1.15;
}
.hero-copy p{
  margin:0;
  color:#dce8f6;
  max-width:760px;
}
.hero-actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:24px}
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  min-height:46px;
  padding:0 18px;
  border-radius:12px;
  background:#fff;
  color:var(--brand);
  font-weight:800;
  box-shadow:var(--shadow);
}
.btn.secondary{
  background:transparent;
  color:#fff;
  border:1px solid rgba(255,255,255,.35);
  box-shadow:none;
}
.hero-media{
  background:rgba(255,255,255,.07);
  border:1px solid rgba(255,255,255,.14);
  border-radius:22px;
  overflow:hidden;
  box-shadow:var(--shadow);
}
.hero-media img{width:100%;height:100%;object-fit:cover;aspect-ratio:4/3}
main{padding:30px 0 56px}
section{margin:0 0 24px}
.card{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius);
  box-shadow:var(--shadow);
  padding:28px;
}
.card h2,.card h3{margin:0 0 12px;line-height:1.4}
.section-head{display:flex;justify-content:space-between;gap:18px;align-items:end;margin-bottom:18px}
.section-head p{margin:0;color:var(--muted)}
.lead{
  margin:0 0 8px;
  font-size:20px;
  font-weight:800;
  color:var(--brand);
}
.grid{display:grid;gap:24px;grid-template-columns:repeat(2,minmax(0,1fr))}
.grid-3{display:grid;gap:24px;grid-template-columns:repeat(3,minmax(0,1fr))}
.media-card{
  overflow:hidden;
  padding:0;
}
.media-card img{
  width:100%;
  aspect-ratio:16/9;
  object-fit:cover;
}
.media-card .body{padding:24px 24px 26px}
.list-check, .list-dot{
  margin:0;
  padding-left:1.2em;
}
.badges{display:flex;gap:10px;flex-wrap:wrap;margin:18px 0 0}
.badge{
  display:inline-flex;
  align-items:center;
  padding:6px 11px;
  border-radius:999px;
  background:#ecf4ff;
  color:#1d5b97;
  font-size:13px;
  font-weight:800;
}
.note{
  margin-top:16px;
  padding:14px 16px;
  border-left:4px solid var(--accent);
  background:var(--accent-soft);
  border-radius:12px;
  color:#3e4a57;
}
.kv-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:20px}
.kv{
  display:flex;
  justify-content:space-between;
  gap:12px;
  padding:10px 0;
  border-bottom:1px solid var(--line);
}
.kv strong{white-space:nowrap}
.cta-box{
  display:grid;
  grid-template-columns:1.1fr .9fr;
  gap:24px;
  align-items:center;
}
.cta-box p{margin:0}
.feature-list article{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:18px;
  padding:22px;
  box-shadow:var(--shadow);
}
.page-intro{
  display:grid;
  grid-template-columns:minmax(0,1.05fr) minmax(260px,.95fr);
  gap:24px;
}
.page-intro .image-wrap{
  overflow:hidden;
  border-radius:18px;
  border:1px solid var(--line);
}
.page-intro .image-wrap img{width:100%;aspect-ratio:16/10;object-fit:cover}
.dual-images{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px}
.figure-card{
  overflow:hidden;
  border-radius:18px;
  border:1px solid var(--line);
  background:#fff;
  box-shadow:var(--shadow);
}
.figure-card img{width:100%;aspect-ratio:4/3;object-fit:cover}
.figure-card .caption{padding:16px 18px;color:var(--muted)}
.site-footer{
  padding:26px 0 42px;
  color:var(--muted);
  font-size:14px;
}
.site-footer a{color:var(--brand)}
.small{font-size:14px;color:var(--muted)}
.accent-text{color:var(--accent)}
@media (max-width: 900px){
  .hero,.hero.compact,.page-intro,.cta-box,.dual-images,.grid,.grid-3,.kv-grid{grid-template-columns:1fr}
  .topbar{flex-direction:column;align-items:flex-start}
  .brand img{width:160px}
}