:root {
  --ink: #1d2a26;
  --muted: #5b6863;
  --line: #dde4e1;
  --bg: #ffffff;
  --bg-alt: #f4f7f5;
  --accent: #1f6b52;
  --accent-ink: #ffffff;
  --radius: 10px;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: "Noto Sans JP", system-ui, -apple-system, sans-serif;
  font-size: 16px;
  line-height: 1.8;
  -webkit-font-smoothing: antialiased;
}

a { color: var(--accent); }

.wrap { max-width: 1040px; margin: 0 auto; padding: 0 20px; }
.wrap.narrow { max-width: 760px; }

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  background: rgba(255, 255, 255, 0.95);
  border-bottom: 1px solid var(--line);
}
.header-inner { display: flex; align-items: center; justify-content: space-between; height: 64px; }
.logo { font-weight: 700; font-size: 22px; letter-spacing: 0.02em; color: var(--ink); text-decoration: none; }
.nav { display: flex; gap: 24px; }
.nav a { color: var(--muted); text-decoration: none; font-size: 14px; }
.nav a:hover { color: var(--accent); }

.hero { padding: 96px 0 88px; background: var(--bg-alt); }
.eyebrow { margin: 0 0 12px; color: var(--accent); font-weight: 500; font-size: 14px; letter-spacing: 0.08em; }
.hero h1 { margin: 0 0 24px; font-size: clamp(28px, 4.4vw, 44px); line-height: 1.4; font-weight: 700; }
.lead { max-width: 640px; margin: 0 0 32px; color: var(--muted); font-size: 17px; }

.button {
  display: inline-block;
  padding: 14px 28px;
  border-radius: var(--radius);
  background: var(--accent);
  color: var(--accent-ink);
  font-weight: 500;
  text-decoration: none;
}
.button:hover { opacity: 0.9; }

.section { padding: 80px 0; scroll-margin-top: 64px; }
.section.alt { background: var(--bg-alt); }
.section h2 { margin: 0 0 32px; font-size: 26px; font-weight: 700; }
.section h3 { margin: 0 0 8px; font-size: 17px; font-weight: 700; }
.section p { margin: 0 0 16px; }

.cards { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.card { padding: 28px; border: 1px solid var(--line); border-radius: var(--radius); background: var(--bg); }
.card p { color: var(--muted); font-size: 15px; margin: 0; }

.policy { display: grid; grid-template-columns: repeat(2, 1fr); gap: 20px 40px; margin: 0; padding: 0; list-style: none; counter-reset: policy; }
.policy li { counter-increment: policy; padding-left: 48px; position: relative; }
.policy li::before {
  content: counter(policy, decimal-leading-zero);
  position: absolute;
  left: 0;
  top: 0;
  color: var(--accent);
  font-weight: 700;
  font-size: 18px;
}
.policy p { color: var(--muted); font-size: 15px; }

.checklist { margin: 0 0 24px; padding: 0; list-style: none; }
.checklist li { padding: 10px 0 10px 32px; border-bottom: 1px solid var(--line); position: relative; }
.checklist li::before {
  content: "";
  position: absolute;
  left: 4px;
  top: 19px;
  width: 12px;
  height: 7px;
  border-left: 2px solid var(--accent);
  border-bottom: 2px solid var(--accent);
  transform: rotate(-45deg);
}

.info { margin: 0; border-top: 1px solid var(--line); }
.info div { display: grid; grid-template-columns: 180px 1fr; padding: 16px 0; border-bottom: 1px solid var(--line); }
.info dt { color: var(--muted); font-size: 15px; }
.info dd { margin: 0; }

.contact { text-align: center; }

.site-footer { padding: 32px 0; border-top: 1px solid var(--line); color: var(--muted); font-size: 13px; text-align: center; }
.site-footer p { margin: 0; }

@media (max-width: 760px) {
  .nav { display: none; }
  .hero { padding: 64px 0 56px; }
  .section { padding: 56px 0; }
  .cards, .policy { grid-template-columns: 1fr; }
  .info div { grid-template-columns: 1fr; gap: 4px; }
}