:root {
  --coral: #DE9C90;
  --aqua: #97C1CB;
  --beige: #EBD7C6;
  --navy: #2C3F55;
  --paper: #FCFBF8;
  --white: #FFFFFF;
  --ink: #2C3F55;
  --muted: #68727D;
  --line: rgba(44, 63, 85, .13);
  --shadow: 0 18px 55px rgba(44, 63, 85, .08);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "Noto Sans JP", sans-serif;
  line-height: 1.8;
}
a { color: inherit; }
.site-header {
  width: min(1120px, calc(100% - 40px));
  margin: 0 auto;
  min-height: 78px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}
.brand {
  font-family: Georgia, "Times New Roman", serif;
  font-size: 1.25rem;
  font-weight: 700;
  text-decoration: none;
  letter-spacing: .02em;
}
nav { display: flex; gap: 22px; flex-wrap: wrap; }
nav a { text-decoration: none; font-size: .9rem; color: var(--muted); }
nav a:hover { color: var(--navy); }
main { width: min(1120px, calc(100% - 40px)); margin: 0 auto; }
.hero {
  min-height: 560px;
  display: grid;
  grid-template-columns: 1.15fr .85fr;
  align-items: center;
  gap: 60px;
  padding: 70px 0 90px;
}
.eyebrow {
  margin: 0 0 12px;
  color: var(--coral);
  font-size: .78rem;
  font-weight: 800;
  letter-spacing: .16em;
}
h1, h2, h3 { margin-top: 0; line-height: 1.35; }
.hero h1 { font-size: clamp(3.0625rem, 7.5vw, 5.5rem); letter-spacing: -.04em; }
.lead { max-width: 650px; color: var(--muted); font-size: 1.04rem; }
.hero-actions { display: flex; gap: 12px; margin-top: 30px; flex-wrap: wrap; }
.button {
  display: inline-flex;
  align-items: center;
  min-height: 48px;
  padding: 0 22px;
  border-radius: 999px;
  text-decoration: none;
  font-weight: 700;
}
.button.primary { background: var(--navy); color: var(--white); }
.button.secondary { border: 1px solid var(--line); background: var(--white); }
.hero-art { position: relative; height: 390px; }
.shape { position: absolute; display: block; border-radius: 999px; box-shadow: var(--shadow); }
.shape.coral { width: 210px; height: 210px; background: var(--coral); right: 20px; top: 10px; }
.shape.aqua { width: 180px; height: 180px; background: var(--aqua); left: 20px; top: 120px; }
.shape.beige { width: 155px; height: 155px; background: var(--beige); right: 90px; bottom: 0; }
.shape.navy { width: 95px; height: 95px; background: var(--navy); right: 10px; bottom: 30px; }
.section { padding: 90px 0; border-top: 1px solid var(--line); }
.section-heading { margin-bottom: 34px; }
.section h2, .policy-heading h1 { font-size: clamp(2rem, 4vw, 3rem); }
.card-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 18px;
}
.card {
  min-height: 245px;
  padding: 32px;
  border-radius: 28px;
  box-shadow: var(--shadow);
}
.card-coral { background: color-mix(in srgb, var(--coral) 62%, white); }
.card-aqua { background: color-mix(in srgb, var(--aqua) 62%, white); }
.card-beige { background: color-mix(in srgb, var(--beige) 82%, white); }
.card-navy { background: var(--navy); color: var(--white); }
.card-label { margin: 0 0 28px; font-size: .72rem; font-weight: 800; letter-spacing: .15em; opacity: .72; }
.card h3 { font-family: Georgia, "Times New Roman", serif; font-size: 2rem; margin-bottom: 12px; }
.card p:last-child { margin-bottom: 0; }
.calendar-section {
  display: grid;
  grid-template-columns: 1.45fr .55fr;
  gap: 46px;
  align-items: start;
}
.calendar-copy p { max-width: 760px; }
.text-link { display: inline-block; margin-top: 10px; font-weight: 800; text-decoration-thickness: 1px; }
.calendar-note {
  background: var(--navy);
  color: white;
  padding: 30px;
  border-radius: 26px;
  box-shadow: var(--shadow);
}
.calendar-note span { display: block; font-size: .75rem; opacity: .7; letter-spacing: .12em; }
.calendar-note strong { display: block; margin: 5px 0 16px; font-family: Georgia, serif; font-size: 1.7rem; }
.calendar-note p { margin-bottom: 0; }
footer {
  width: min(1120px, calc(100% - 40px));
  margin: 0 auto;
  padding: 34px 0 46px;
  border-top: 1px solid var(--line);
  display: flex;
  justify-content: space-between;
}
.policy-wrap { max-width: 860px; padding: 70px 0 100px; }
.policy-heading { margin-bottom: 58px; }
.policy-heading > p:last-child { color: var(--muted); }
.policy-section {
  padding: 34px 0;
  border-top: 1px solid var(--line);
}
.policy-section h2 { font-size: 1.35rem; }
.policy-section h3 { margin-top: 28px; font-size: 1rem; }
.policy-section p, .policy-section li { color: #4f5d6b; }
.policy-section ul { padding-left: 1.4em; }
.policy-highlight {
  margin-top: 28px;
  padding: 28px;
  border: 0;
  border-radius: 24px;
  background: color-mix(in srgb, var(--aqua) 30%, white);
}
.back-link { display: inline-block; margin-top: 32px; font-weight: 700; }

@media (max-width: 760px) {
  .site-header { padding: 16px 0; align-items: flex-start; }
  nav { justify-content: flex-end; gap: 14px; }
  .hero { grid-template-columns: 1fr; padding-top: 45px; gap: 10px; }
  .hero-art { height: 280px; max-width: 430px; width: 100%; margin: 0 auto; }
  .shape.coral { width: 160px; height: 160px; }
  .shape.aqua { width: 145px; height: 145px; }
  .shape.beige { width: 120px; height: 120px; }
  .shape.navy { width: 78px; height: 78px; }
  .card-grid { grid-template-columns: 1fr; }
  .calendar-section { grid-template-columns: 1fr; }
  footer { gap: 18px; flex-wrap: wrap; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
}