:root {
  --fg: #1d2330;
  --muted: #5a6475;
  --accent: #5ba6ff;
  --card: rgba(255, 255, 255, 0.92);
  --stroke: #e5e7eb;
  --shadow: 0 4px 18px rgba(0, 0, 0, 0.07);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  min-width: 320px;
  min-height: 100vh;
  margin: 0;
  color: var(--fg);
  background:
    radial-gradient(circle at 12% 12%, rgba(95, 211, 255, 0.2), transparent 18rem),
    radial-gradient(circle at 88% 30%, rgba(165, 139, 255, 0.2), transparent 18rem),
    radial-gradient(circle at 24% 84%, rgba(140, 234, 113, 0.16), transparent 17rem),
    #fff;
  font-family: ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto,
    "Hiragino Kaku Gothic ProN", Meiryo, sans-serif;
  line-height: 1.7;
}

a { color: inherit; }
#policy-scene {
  position: fixed;
  inset: 0;
  z-index: 0;
  width: 100%;
  height: 100%;
  filter: blur(14px) saturate(125%);
  pointer-events: none;
}
.policy-nav,
.policy-hero,
.policy-content,
#shared-footer {
  position: relative;
  z-index: 1;
}
.policy-nav {
  position: sticky;
  top: 0;
  z-index: 20;
  border-bottom: 1px solid var(--stroke);
  background: rgba(255, 255, 255, 0.82);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.05);
  backdrop-filter: blur(10px);
}
.policy-nav-inner {
  max-width: 1100px;
  min-height: 72px;
  margin: auto;
  padding: 0.65rem 1rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}
.policy-logo img { width: auto; height: 40px; display: block; }
.policy-nav-links { display: flex; flex-wrap: wrap; align-items: center; justify-content: flex-end; gap: 8px; }
.policy-nav-links a {
  padding: 0.45rem 0.72rem;
  border-radius: 12px;
  font-size: 0.84rem;
  font-weight: 650;
  text-decoration: none;
}
.policy-nav-links a:hover,
.policy-nav-links a[aria-current="page"] {
  color: var(--accent);
  background: rgba(91, 166, 255, 0.1);
}

.policy-hero {
  min-height: min(58vh, 570px);
  margin: 0 0 54px;
  padding: clamp(72px, 10vw, 120px) 24px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  color: #fff;
  background:
    radial-gradient(circle at 22% 30%, rgba(91, 166, 255, 0.52), transparent 24rem),
    radial-gradient(circle at 80% 64%, rgba(139, 92, 246, 0.45), transparent 23rem),
    linear-gradient(135deg, rgba(18, 27, 43, 0.96), rgba(38, 48, 67, 0.9));
  text-align: center;
}
.policy-kicker {
  margin: 0 0 12px;
  color: var(--accent);
  font-size: 0.75rem;
  font-weight: 800;
  letter-spacing: 0.17em;
}
.policy-hero h1 {
  margin: 0;
  font-size: clamp(2.3rem, 6vw, 4.6rem);
  line-height: 1.08;
  letter-spacing: -0.035em;
}
.policy-lead {
  max-width: 720px;
  margin: 22px auto 0;
  color: rgba(255, 255, 255, 0.78);
  font-size: clamp(1rem, 1.8vw, 1.18rem);
}

.policy-content {
  max-width: 900px;
  margin: 0 auto;
  padding: 0 24px 90px;
  display: grid;
  gap: 18px;
}
.policy-card {
  position: relative;
  overflow: hidden;
  padding: clamp(24px, 4vw, 36px);
  display: grid;
  grid-template-columns: 60px minmax(0, 1fr);
  column-gap: 22px;
  align-items: start;
  border: 1px solid var(--stroke);
  border-radius: 16px;
  background: var(--card);
  box-shadow: var(--shadow);
  transition:
    transform 0.3s ease,
    box-shadow 0.3s ease,
    border-color 0.3s ease;
}
.policy-card::before {
  content: "";
  position: absolute;
  inset: 0 auto 0 0;
  width: 4px;
  background: var(--card-accent, var(--accent));
  transform: scaleY(0);
  transform-origin: bottom;
  transition: transform 0.3s ease;
}
.policy-card:hover {
  border-color: rgba(91, 166, 255, 0.3);
  box-shadow: 0 12px 28px rgba(0, 0, 0, 0.11);
  transform: translateY(-4px);
}
.policy-card:hover::before { transform: scaleY(1); }
.policy-icon {
  grid-column: 1;
  grid-row: 1 / span 5;
  width: 60px;
  height: 60px;
  display: grid;
  place-items: center;
  border-radius: 50%;
  background: var(--card-accent, var(--accent));
  color: #fff;
  transition: transform 0.3s ease;
}
.policy-icon .material-symbols-outlined {
  font-size: 1.8rem;
  font-variation-settings: "FILL" 0, "wght" 500;
}
.policy-card:hover .policy-icon { transform: scale(1.08); }
.policy-card h2 {
  grid-column: 2;
  margin: 0 0 10px;
  font-size: clamp(1.2rem, 2.4vw, 1.5rem);
}
.policy-card p { grid-column: 2; margin: 0; color: var(--muted); }
.policy-card p + p { margin-top: 12px; }
.policy-card a { color: #297fbd; text-underline-offset: 3px; }
.policy-card strong { color: var(--fg); }
.accent-purple { --card-accent: #8b5cf6; }
.accent-blue { --card-accent: #3b82f6; }
.accent-green { --card-accent: #10b981; }
.accent-red { --card-accent: #d9576e; }
.accent-gold { --card-accent: #d19830; }
.accent-gray { --card-accent: #6b7280; }
.policy-date { font-size: 0.82rem; }

.reveal {
  opacity: 0;
  transition:
    opacity 0.8s ease,
    transform 0.8s ease;
}
.policy-card.reveal {
  transition-duration: 0.55s;
}
.reveal-up { transform: translateY(14px); }
.reveal.is-visible { opacity: 1; transform: none; }

#shared-footer { min-height: 86px; }
.shared-footer-frame {
  position: relative;
  z-index: 20;
  width: 100%;
  min-height: 86px;
  display: block;
  border: 0;
  background: #333;
}

@media (max-width: 700px) {
  .policy-nav-inner { min-height: 60px; align-items: flex-start; flex-direction: column; gap: 8px; }
  .policy-logo img { height: 34px; }
  .policy-nav-links { justify-content: flex-start; }
  .policy-nav-links a { padding-left: 0; padding-right: 12px; }
  .policy-card {
    grid-template-columns: 48px minmax(0, 1fr);
    column-gap: 16px;
  }
  .policy-icon { width: 48px; height: 48px; }
  .policy-icon .material-symbols-outlined { font-size: 1.5rem; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { transition-duration: 0.01ms !important; }
  #policy-scene { display: none; }
  .reveal { opacity: 1; transform: none; }
}