:root {
  --bg: #fbfaf7;
  --paper: #ffffff;
  --warm: #f3f0eb;
  --ink: rgba(20, 25, 31, 0.95);
  --muted: #5d646b;
  --line: rgba(20, 25, 31, 0.1);
  --blue: #2477c3;
  --blue-dark: #165b9a;
  --sage: #7da28f;
  --sand: #e7d7bf;
  --clay: #b9886b;
  --shadow: rgba(0,0,0,0.04) 0 4px 18px, rgba(0,0,0,0.027) 0 2px 8px, rgba(0,0,0,0.02) 0 1px 3px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  color: var(--ink);
  background:
    radial-gradient(circle at 8% 0%, rgba(125, 162, 143, 0.2), transparent 28rem),
    radial-gradient(circle at 94% 8%, rgba(231, 215, 191, 0.5), transparent 26rem),
    var(--bg);
  line-height: 1.55;
}
a { color: inherit; text-decoration: none; }

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 22px;
  padding: 18px clamp(20px, 5vw, 76px);
  background: rgba(251, 250, 247, 0.88);
  border-bottom: 1px solid var(--line);
  backdrop-filter: blur(18px);
}
.brand {
  font-weight: 800;
  letter-spacing: -0.04em;
}
nav { display: flex; flex-wrap: wrap; gap: 8px; }
nav a {
  padding: 8px 12px;
  border-radius: 8px;
  color: var(--muted);
  font-size: 0.94rem;
  font-weight: 700;
}
nav a:hover, nav a:focus-visible {
  color: var(--ink);
  background: var(--warm);
  outline: none;
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(320px, 0.76fr);
  gap: clamp(30px, 6vw, 80px);
  align-items: center;
  min-height: calc(100vh - 72px);
  padding: clamp(58px, 8vw, 112px) clamp(20px, 5vw, 76px);
}
.hero-copy { max-width: 880px; }
.badge {
  display: inline-flex;
  margin: 0 0 14px;
  padding: 5px 10px;
  border: 1px solid rgba(36, 119, 195, 0.18);
  border-radius: 999px;
  color: var(--blue-dark);
  background: rgba(36, 119, 195, 0.07);
  font-size: 0.76rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}
.badge.light {
  color: #e7f5ff;
  border-color: rgba(255,255,255,0.18);
  background: rgba(255,255,255,0.08);
}
h1, h2, h3, p { margin-top: 0; }
h1 {
  margin-bottom: 24px;
  font-size: clamp(2.45rem, 6vw, 5.45rem);
  line-height: 0.96;
  letter-spacing: -0.075em;
}
h2 {
  margin-bottom: 16px;
  font-size: clamp(2rem, 4.2vw, 4rem);
  line-height: 1;
  letter-spacing: -0.055em;
}
h3 {
  margin-bottom: 12px;
  font-size: 1.25rem;
  line-height: 1.14;
  letter-spacing: -0.035em;
}
.lead, .intro > p, .section-head p, .dark p, .content-grid p, .faq p, .cta p {
  color: var(--muted);
  font-size: clamp(1rem, 1.75vw, 1.2rem);
}
.actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 30px; }
.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 0 20px;
  border-radius: 8px;
  font-weight: 800;
  transition: transform 180ms ease, box-shadow 180ms ease, background 180ms ease;
}
.button:hover, .button:focus-visible { transform: translateY(-2px); box-shadow: var(--shadow); outline: none; }
.primary { color: white; background: var(--blue); }
.primary:hover, .primary:focus-visible { background: var(--blue-dark); }
.secondary { border: 1px solid var(--line); background: rgba(255,255,255,0.74); }

.hero-card {
  display: grid;
  align-content: end;
  min-height: 540px;
  padding: 26px;
  border: 1px solid var(--line);
  border-radius: 24px;
  background: linear-gradient(145deg, rgba(255,255,255,0.92), rgba(243,240,235,0.8));
  box-shadow: var(--shadow);
  overflow: hidden;
}
.calm-visual {
  position: relative;
  min-height: 300px;
  margin-bottom: 28px;
}
.calm-visual span {
  position: absolute;
  display: block;
  border-radius: 999px;
  filter: blur(0.2px);
}
.calm-visual span:nth-child(1) {
  width: 78%; height: 78%; left: 6%; top: 10%;
  background: radial-gradient(circle at 40% 35%, rgba(255,255,255,0.95), rgba(125,162,143,0.52));
}
.calm-visual span:nth-child(2) {
  width: 54%; height: 54%; right: 4%; top: 24%;
  background: radial-gradient(circle at 40% 40%, rgba(255,255,255,0.9), rgba(36,119,195,0.28));
}
.calm-visual span:nth-child(3) {
  width: 68%; height: 22%; left: 14%; bottom: 8%;
  background: rgba(231,215,191,0.9);
}
.hero-card strong {
  font-size: 1.5rem;
  line-height: 1.1;
  letter-spacing: -0.04em;
}
.hero-card p { color: var(--muted); margin-bottom: 0; }

.section { padding: clamp(58px, 8vw, 106px) clamp(20px, 5vw, 76px); }
.intro {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(280px, 0.72fr);
  gap: 38px;
  align-items: end;
  background: rgba(255,255,255,0.78);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}
.section-head { max-width: 760px; margin-bottom: 34px; }
.cards { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 22px; }
.card, .content-grid article, .faq details {
  padding: 26px;
  border: 1px solid var(--line);
  border-radius: 16px;
  background: var(--paper);
  box-shadow: var(--shadow);
}
.card p { color: var(--muted); }
.dark {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(320px, 1fr);
  gap: 28px;
  color: white;
  background:
    radial-gradient(circle at 80% 16%, rgba(125,162,143,0.24), transparent 32%),
    #22312d;
}
.dark h2 { color: white; }
.dark p { color: rgba(255,255,255,0.78); }
.notice-list { display: grid; gap: 12px; }
.notice-list div {
  display: grid;
  grid-template-columns: 52px 1fr;
  gap: 18px;
  align-items: center;
  padding: 18px;
  border: 1px solid rgba(255,255,255,0.14);
  border-radius: 14px;
  background: rgba(255,255,255,0.08);
}
.notice-list strong { color: #c9e8d9; font-variant-numeric: tabular-nums; }
.content-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 24px; }
.content-grid h2 { font-size: clamp(1.85rem, 3vw, 2.75rem); }
.faq { background: var(--warm); }
.faq details + details { margin-top: 14px; }
.faq summary { cursor: pointer; font-weight: 900; font-size: 1.1rem; }
.faq p { margin: 14px 0 0; }
.cta { text-align: center; background: white; }
.cta p { max-width: 720px; margin-left: auto; margin-right: auto; }
footer { padding: 28px 20px; text-align: center; color: rgba(255,255,255,0.76); background: #22312d; }

@media (max-width: 920px) {
  .site-header { position: static; align-items: flex-start; flex-direction: column; }
  .hero, .intro, .dark, .content-grid { grid-template-columns: 1fr; }
  .hero-card { min-height: 430px; }
  .cards { grid-template-columns: 1fr; }
}
@media (max-width: 560px) {
  .hero { min-height: auto; }
  .actions, .button { width: 100%; }
  .hero-card { min-height: 360px; }
  .calm-visual { min-height: 220px; }
}