:root {
  color-scheme: light;
  --ink: #172532;
  --muted: #526170;
  --line: #d9e3e8;
  --paper: #ffffff;
  --soft: #f3f7f8;
  --accent: #dcefea;
  --link: #075f65;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; color: var(--ink); background: var(--paper); font-family: -apple-system, BlinkMacSystemFont, "Hiragino Kaku Gothic ProN", "Noto Sans JP", sans-serif; line-height: 1.75; }
a { color: var(--link); text-underline-offset: .2em; }
a:hover { color: #03474c; }
a:focus-visible { outline: 3px solid #f2a341; outline-offset: 4px; border-radius: 2px; }
code { font-size: .92em; overflow-wrap: anywhere; }
.container { width: min(100% - 2.5rem, 1060px); margin-inline: auto; }
.skip-link { position: absolute; left: 1rem; top: -5rem; z-index: 10; background: #fff; padding: .55rem .8rem; }
.skip-link:focus { top: .5rem; }
.site-header { border-bottom: 1px solid var(--line); }
.header-inner, .footer-inner { min-height: 76px; display: flex; align-items: center; justify-content: space-between; gap: 1rem; }
.brand { color: var(--ink); text-decoration: none; font-weight: 750; letter-spacing: -.02em; }
.site-header nav a, .site-footer a { font-size: .92rem; }
.hero { padding-block: clamp(5rem, 10vw, 9rem); }
.eyebrow { color: var(--link); font-size: .77rem; font-weight: 750; letter-spacing: .16em; text-transform: uppercase; margin: 0 0 1.1rem; }
h1, h2, h3 { line-height: 1.35; letter-spacing: -.035em; }
h1 { font-size: clamp(2.5rem, 6vw, 5rem); margin: 0 0 1.5rem; }
h2 { font-size: clamp(1.8rem, 3.5vw, 2.8rem); margin: 0 0 1.5rem; }
h3 { font-size: 1.2rem; margin: 1rem 0 .5rem; }
.lead { color: var(--muted); font-size: clamp(1.1rem, 1.8vw, 1.35rem); max-width: 47rem; margin: 0 0 2rem; }
.lead-small { font-size: 1.06rem; max-width: 48rem; }
.text-link { font-weight: 700; text-decoration-thickness: 1px; }
.section { padding-block: clamp(4.5rem, 8vw, 7rem); }
.section-soft { background: var(--soft); }
.section-accent { background: var(--accent); }
.card-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1rem; margin-top: 2.2rem; }
.card { background: var(--paper); border: 1px solid var(--line); border-radius: 12px; padding: 1.6rem; }
.card p { margin: 0; color: var(--muted); }
.card-number { color: var(--link); font-size: .83rem; font-weight: 750; }
.split { display: grid; grid-template-columns: 1fr 1.15fr; gap: 3rem; }
.prose p { margin: 0 0 1.15rem; }
.prose p:last-child { margin-bottom: 0; }
.site-footer { border-top: 1px solid var(--line); color: var(--muted); }
.policy-layout { padding-block: 4.5rem 6rem; }
.policy-heading { border-bottom: 1px solid var(--line); padding-bottom: 2.2rem; margin-bottom: 3.2rem; }
.policy-heading h1 { font-size: clamp(2.3rem, 5vw, 3.6rem); margin-bottom: .6rem; }
.muted { color: var(--muted); }
.policy-content { max-width: 48rem; }
.policy-content section + section { margin-top: 3rem; }
.policy-content h2 { font-size: 1.35rem; margin-bottom: .85rem; }

@media (max-width: 720px) {
  .card-grid, .split { grid-template-columns: 1fr; }
  .split { gap: 1rem; }
  .hero { padding-block: 5rem; }
  .section { padding-block: 4rem; }
  .header-inner, .footer-inner { min-height: 68px; }
}