:root {
  --paper: #ffffff;
  --ink: #050505;
  --muted: #5f6368;
  --soft: #e5e7eb;
  --accent: #d91f11;
  --max: 920px;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: "Alibaba PuHuiTi 3", "PingFang SC", "Microsoft YaHei", sans-serif;
  font-synthesis: none;
}

a { color: inherit; }

a:focus-visible {
  outline: 3px solid var(--accent);
  outline-offset: 3px;
}

.info-topbar {
  position: sticky;
  top: 0;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 60px;
  padding: 0 22px;
  border-bottom: 2px solid var(--ink);
  background: rgba(255, 255, 255, 0.96);
}

.info-brand {
  text-decoration: none;
  font-size: 22px;
  font-weight: 900;
}

.info-nav {
  display: flex;
  gap: 20px;
  font-size: 13px;
  font-weight: 800;
}

.info-nav a { text-underline-offset: 4px; }

.info-main {
  width: min(calc(100% - 44px), var(--max));
  margin: 0 auto;
}

.info-hero {
  padding: 72px 0 54px;
  border-bottom: 3px solid var(--ink);
}

.info-kicker,
.info-updated {
  margin: 0 0 18px;
  color: var(--muted);
  font-size: 13px;
  font-weight: 800;
  letter-spacing: 0;
}

.info-hero h1 {
  max-width: 820px;
  margin: 0 0 26px;
  font-size: 64px;
  font-weight: 900;
  line-height: 1.04;
  letter-spacing: 0;
  overflow-wrap: break-word;
}

.info-hero h1 span {
  display: block;
  margin-top: 8px;
  color: var(--muted);
  font-size: 28px;
  line-height: 1.15;
}

.policy-language {
  padding: 54px 0;
  border-bottom: 1px solid var(--soft);
  scroll-margin-top: 72px;
}

.policy-language[lang="en"] {
  font-family: "Alibaba PuHuiTi 3", Arial, sans-serif;
}

.policy-language > h2 {
  margin: 0 0 34px;
  font-size: 34px;
  font-weight: 900;
  line-height: 1.15;
}

.policy-language h3 {
  margin: 38px 0 12px;
  font-size: 21px;
  font-weight: 900;
  line-height: 1.25;
}

.policy-language p,
.policy-language li,
.policy-language dd {
  color: #242424;
  font-size: 17px;
  line-height: 1.85;
}

.policy-language p { margin: 0 0 18px; }

.policy-language ul,
.policy-language ol {
  margin: 0 0 24px;
  padding-left: 1.45em;
}

.policy-language li { margin-bottom: 9px; }

.policy-language a {
  color: #005fcc;
  font-weight: 700;
  text-underline-offset: 3px;
}

.policy-list {
  margin: 0;
  border-top: 2px solid var(--ink);
}

.policy-list div {
  display: grid;
  grid-template-columns: minmax(150px, 0.4fr) minmax(0, 1.6fr);
  gap: 20px;
  padding: 18px 0;
  border-bottom: 1px solid var(--soft);
}

.policy-list dt {
  font-size: 15px;
  font-weight: 900;
}

.policy-list dd { margin: 0; }

.info-footer {
  padding: 34px max(22px, calc((100vw - var(--max)) / 2));
  border-top: 3px solid var(--ink);
}

.info-footer nav {
  display: flex;
  flex-wrap: wrap;
  gap: 12px 22px;
  margin-bottom: 18px;
  font-size: 13px;
  font-weight: 800;
}

.info-footer p {
  margin: 0;
  color: var(--muted);
  font-size: 12px;
  line-height: 1.6;
}

@media (max-width: 680px) {
  .info-topbar { padding: 0 16px; }
  .info-brand { font-size: 19px; }
  .info-nav { gap: 13px; }
  .info-main { width: min(calc(100% - 32px), var(--max)); }
  .info-hero { padding: 48px 0 38px; }
  .info-hero h1 { font-size: 40px; }
  .info-hero h1 span { font-size: 23px; }
  .policy-language { padding: 40px 0; }
  .policy-language > h2 { font-size: 28px; }
  .policy-language p,
  .policy-language li,
  .policy-language dd { font-size: 16px; line-height: 1.78; }
  .policy-list div { grid-template-columns: 1fr; gap: 8px; }
  .info-footer { padding: 28px 16px; }
}