@import url('https://fonts.googleapis.com/css2?family=Nunito:wght@400;500;600;700;800&display=swap');

:root {
  --primary: #7da8ff;
  --primary-dark: #5f8ee8;
  --bg-main: #f7faff;
  --bg-surface: #ffffff;
  --bg-gradient: linear-gradient(135deg, #eaf2ff, #ffffff);
  --text-primary: #2c2c2c;
  --text-secondary: #5f6b7a;
  --text-muted: #555555;
  --border: #e6ecf5;
  --border-highlight: #cfe2ff;
  --soft-blue: #eef3ff;
  --badge-bg: #f0f6ff;
  --radius-card: 16px;
  --radius-btn: 28px;
  --radius-pill: 999px;
  --shadow-soft: 0 6px 14px rgba(0,0,0,0.08);
  --shadow-hover: 0 10px 24px rgba(58, 94, 160, 0.14);
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: 'Nunito', sans-serif;
  color: var(--text-primary);
  background: var(--bg-main);
  line-height: 1.7;
}

a { color: var(--primary-dark); text-decoration: none; }
a:hover { text-decoration: underline; }

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  background: rgba(255,255,255,0.94);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
}

.header-inner {
  max-width: 1120px;
  margin: auto;
  padding: 16px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.brand {
  font-size: 1.45rem;
  font-weight: 800;
  letter-spacing: -0.02em;
  color: var(--text-primary);
}

.brand span { color: var(--primary-dark); }

.nav-links {
  display: flex;
  gap: 18px;
  flex-wrap: wrap;
}

.nav-links a {
  color: var(--text-secondary);
  font-weight: 700;
  font-size: 0.95rem;
}

.hero {
  background: var(--bg-gradient);
  border-bottom: 1px solid var(--border-highlight);
}

.hero-inner {
  max-width: 980px;
  margin: auto;
  padding: 64px 24px 52px;
  text-align: center;
}

.badge {
  display: inline-block;
  padding: 7px 14px;
  border-radius: var(--radius-pill);
  background: var(--badge-bg);
  color: var(--primary-dark);
  font-size: 0.85rem;
  font-weight: 800;
  margin-bottom: 16px;
}

h1 {
  margin: 0 0 16px;
  font-size: clamp(2rem, 5vw, 3.3rem);
  line-height: 1.15;
  letter-spacing: -0.04em;
}

.hero p {
  max-width: 720px;
  margin: 0 auto;
  color: var(--text-secondary);
  font-size: 1.05rem;
}

.page-shell {
  max-width: 1120px;
  margin: auto;
  padding: 40px 24px 72px;
  display: grid;
  grid-template-columns: 260px minmax(0, 1fr);
  gap: 28px;
}

.toc {
  position: sticky;
  top: 92px;
  align-self: start;
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-card);
  padding: 22px;
  box-shadow: var(--shadow-soft);
}

.toc h2 {
  margin: 0 0 12px;
  font-size: 1rem;
}

.toc a {
  display: block;
  padding: 7px 0;
  color: var(--text-secondary);
  font-size: 0.93rem;
}

.policy-card {
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-card);
  padding: clamp(24px, 4vw, 44px);
  box-shadow: var(--shadow-soft);
}

.policy-card:hover {
  box-shadow: var(--shadow-hover);
}

.policy-card section {
  scroll-margin-top: 105px;
  padding-bottom: 26px;
  margin-bottom: 26px;
  border-bottom: 1px solid var(--border);
}

.policy-card section:last-child {
  border-bottom: 0;
  margin-bottom: 0;
  padding-bottom: 0;
}

h2 {
  margin: 0 0 12px;
  font-size: 1.45rem;
}

h3 {
  margin: 18px 0 8px;
  font-size: 1.08rem;
}

p { margin: 0 0 14px; }

ul {
  margin: 8px 0 16px 22px;
  padding: 0;
}

li { margin-bottom: 8px; }

.notice {
  background: var(--soft-blue);
  border: 1px solid var(--border-highlight);
  border-radius: 12px;
  padding: 16px 18px;
  color: var(--text-secondary);
  margin-bottom: 24px;
}

.meta {
  margin-top: 22px;
  color: var(--text-muted);
  font-size: 0.92rem;
}

.site-footer {
  border-top: 1px solid var(--border);
  background: #fff;
}

.footer-inner {
  max-width: 1120px;
  margin: auto;
  padding: 28px 24px;
  display: flex;
  justify-content: space-between;
  gap: 18px;
  flex-wrap: wrap;
  color: var(--text-secondary);
  font-size: 0.92rem;
}

@media (max-width: 820px) {
  .page-shell { grid-template-columns: 1fr; }
  .toc { position: static; }
  .nav-links { display: none; }
  .hero-inner { padding-top: 44px; }
}