:root {
  --ink: #172033;
  --muted: #64748b;
  --line: #d7dee8;
  --bg: #f5f7fb;
  --paper: #fff;
  --accent: #2563eb;
  --accent2: #e11d48;
  --gold: #d8a31a;
  --shadow: 0 18px 42px rgba(23, 32, 51, .12);
}
* { box-sizing: border-box; }
body {
  margin: 0;
  color: var(--ink);
  background: var(--bg);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "Hiragino Sans", "Yu Gothic", Meiryo, sans-serif;
  line-height: 1.75;
}
a { color: inherit; }
.wrap { width: min(1100px, calc(100% - 28px)); margin: 0 auto; }
.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  background: rgba(255,255,255,.96);
  border-bottom: 1px solid var(--line);
  backdrop-filter: blur(10px);
}
.header-inner {
  display: flex;
  min-height: 64px;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
}
.logo {
  color: var(--accent);
  font-size: 24px;
  font-weight: 900;
  text-decoration: none;
}
.nav { display: flex; gap: 18px; color: var(--muted); font-size: 14px; font-weight: 800; }
.nav a { text-decoration: none; }
.hero {
  padding: 72px 0 54px;
  color: #fff;
  background:
    radial-gradient(circle at 78% 20%, rgba(216,163,26,.28), transparent 28%),
    linear-gradient(135deg, #111827, #1e3a8a 58%, #0f172a);
}
.hero-inner { max-width: 860px; }
.eyebrow {
  margin: 0 0 8px;
  color: var(--gold);
  font-size: 13px;
  font-weight: 900;
  letter-spacing: 0;
}
h1, h2, h3, p { overflow-wrap: anywhere; }
h1 {
  margin: 0;
  font-size: clamp(38px, 7vw, 72px);
  line-height: 1.1;
}
.lead {
  max-width: 720px;
  margin: 18px 0 0;
  color: #dbeafe;
  font-size: 18px;
  font-weight: 700;
}
.section { padding: 52px 0; }
.band { background: #fff; }
.section-title { margin-bottom: 22px; }
.section-title h2,
.about h2 {
  margin: 0;
  font-size: clamp(28px, 4vw, 42px);
  line-height: 1.3;
}
.card-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
}
.feature-card {
  display: flex;
  min-height: 260px;
  flex-direction: column;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 18px;
  background: var(--paper);
  box-shadow: var(--shadow);
  text-decoration: none;
  transition: transform .16s ease, box-shadow .16s ease;
}
.feature-card:hover {
  transform: translateY(-3px);
  box-shadow: 0 24px 54px rgba(23, 32, 51, .18);
}
.tag {
  display: inline-flex;
  width: fit-content;
  border-radius: 999px;
  padding: 3px 10px;
  color: #fff;
  background: var(--accent);
  font-size: 12px;
  font-weight: 900;
}
.feature-card h3 {
  margin: 14px 0 8px;
  font-size: 21px;
  line-height: 1.35;
}
.feature-card p {
  margin: 0;
  color: var(--muted);
  font-size: 14px;
}
.feature-card .arrow {
  margin-top: auto;
  color: var(--accent2);
  font-weight: 900;
}
.about {
  display: grid;
  grid-template-columns: .85fr 1.15fr;
  gap: 28px;
  align-items: start;
}
.about p { margin: 0; color: #334155; font-weight: 700; }
.footer {
  padding: 28px 0;
  color: #cbd5e1;
  background: #0f172a;
  font-size: 12px;
}
@media (max-width: 920px) {
  .card-grid { grid-template-columns: repeat(2, 1fr); }
  .about { grid-template-columns: 1fr; }
}
@media (max-width: 620px) {
  .header-inner { align-items: flex-start; flex-direction: column; padding: 12px 0; }
  .card-grid { grid-template-columns: 1fr; }
  .hero { padding: 48px 0 40px; }
}