:root {
  --ink: #172033;
  --muted: #667085;
  --line: #e3e8f0;
  --blue: #2563eb;
  --blue-soft: #eef4ff;
  --page: #f4f6fa;
  --card: #fff;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  color: var(--ink);
  background: var(--page);
  font: 15px/1.72 "Segoe UI", "Microsoft YaHei", "PingFang SC", sans-serif;
}
a { color: var(--blue); text-decoration: none; }
a:hover { text-decoration: underline; }
.policy-header {
  position: sticky;
  top: 0;
  z-index: 10;
  border-bottom: 1px solid rgba(227, 232, 240, .9);
  background: rgba(255, 255, 255, .94);
  backdrop-filter: blur(12px);
}
.policy-header-inner {
  width: min(960px, calc(100% - 32px));
  min-height: 56px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
}
.brand-link { color: var(--ink); font-size: 16px; font-weight: 750; }
.brand-link:hover { text-decoration: none; }
.policy-header nav { display: flex; gap: 16px; font-size: 13px; }
.policy-shell {
  width: min(960px, calc(100% - 32px));
  margin: 36px auto 56px;
}
.policy-hero,
.policy-card,
.policy-note {
  border: 1px solid var(--line);
  border-radius: 18px;
  background: var(--card);
  box-shadow: 0 12px 32px rgba(23, 32, 51, .06);
}
.policy-hero { padding: 44px 48px 38px; }
.eyebrow {
  margin: 0 0 8px;
  color: var(--blue);
  font-size: 12px;
  font-weight: 750;
  letter-spacing: .14em;
}
h1 { margin: 0; font-size: clamp(32px, 6vw, 48px); line-height: 1.15; }
.policy-summary { max-width: 760px; margin: 18px 0 28px; color: #465166; font-size: 17px; }
.policy-meta {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
  margin: 0;
}
.policy-meta div { min-width: 0; }
.policy-meta dt { color: var(--muted); font-size: 12px; }
.policy-meta dd { margin: 2px 0 0; font-weight: 650; overflow-wrap: anywhere; }
.policy-note {
  margin: 16px 0;
  padding: 17px 20px;
  border-color: #cddcff;
  background: var(--blue-soft);
  box-shadow: none;
}
.policy-card { margin-top: 16px; padding: 38px 48px; }
.policy-card h2 { margin: 0 0 26px; font-size: 26px; }
.policy-card section + section { border-top: 1px solid var(--line); margin-top: 28px; padding-top: 24px; }
.policy-card h3 { margin: 0 0 10px; font-size: 18px; line-height: 1.4; }
.policy-card p { margin: 10px 0; }
.policy-card ul { margin: 10px 0; padding-left: 22px; }
.policy-card li + li { margin-top: 7px; }
.policy-footer { margin: 28px 0 0; text-align: center; color: var(--muted); font-size: 13px; }
@media (max-width: 700px) {
  .policy-header-inner { align-items: flex-start; padding: 13px 0; }
  .policy-header nav { flex-wrap: wrap; justify-content: flex-end; gap: 6px 12px; }
  .policy-shell { margin-top: 18px; }
  .policy-hero, .policy-card { padding: 28px 22px; border-radius: 14px; }
  .policy-meta { grid-template-columns: 1fr; gap: 10px; }
  .policy-summary { font-size: 15px; }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
}