:root {
  --brand: #0757c8;
  --brand-dark: #0347ad;
  --ink: #0b1f3a;
  --text: #42566f;
  --muted: #718096;
  --line: #dce7f3;
  --soft: #f5f8fc;
  --surface: #ffffff;
}
* { box-sizing: border-box; }
html { color-scheme: light; }
body {
  margin: 0;
  color: var(--ink);
  background: var(--soft);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", Arial, sans-serif;
  -webkit-font-smoothing: antialiased;
}
a { color: var(--brand); }
.topbar {
  border-bottom: 1px solid var(--line);
  background: rgba(255, 255, 255, .96);
}
.topbar-inner {
  width: min(960px, calc(100% - 32px));
  min-height: 70px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
}
.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--ink);
  font-size: 18px;
  font-weight: 900;
  text-decoration: none;
}
.brand img { width: 38px; height: 38px; object-fit: contain; }
.back-link { font-size: 13px; font-weight: 800; text-decoration: none; }
main {
  width: min(880px, calc(100% - 32px));
  margin: 40px auto;
  padding: 44px clamp(22px, 6vw, 64px);
  border: 1px solid var(--line);
  border-radius: 24px;
  background: var(--surface);
  box-shadow: 0 18px 60px rgba(15, 48, 87, .08);
}
.eyebrow {
  margin-bottom: 12px;
  color: var(--brand);
  font-size: 12px;
  font-weight: 900;
  letter-spacing: .14em;
}
h1 {
  margin: 0;
  font-size: clamp(30px, 6vw, 44px);
  line-height: 1.18;
  letter-spacing: -.03em;
}
.meta {
  margin: 14px 0 34px;
  color: var(--muted);
  font-size: 13px;
}
h2 {
  margin: 34px 0 12px;
  font-size: 21px;
  line-height: 1.35;
}
h3 {
  margin: 24px 0 8px;
  font-size: 16px;
}
p, li {
  color: var(--text);
  font-size: 15px;
  line-height: 1.9;
}
ul, ol { padding-left: 22px; }
.notice {
  margin: 26px 0;
  padding: 18px 20px;
  border: 1px solid #cfe1f7;
  border-radius: 14px;
  color: #225484;
  background: #f1f7ff;
  font-size: 14px;
  line-height: 1.75;
}
.policy-links {
  margin-top: 38px;
  padding-top: 24px;
  border-top: 1px solid var(--line);
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  font-size: 13px;
  font-weight: 800;
}
footer {
  width: min(880px, calc(100% - 32px));
  margin: 0 auto 40px;
  color: var(--muted);
  font-size: 12px;
  text-align: center;
}
@media (max-width: 640px) {
  main { margin: 20px auto; padding: 30px 20px; border-radius: 18px; }
  .topbar-inner { min-height: 62px; }
  .brand { font-size: 16px; }
}