:root {
  color-scheme: light;
  --ink: #20372f;
  --muted: #64766e;
  --green: #286a52;
  --line: #dce7e0;
  --paper: #fcfdfb;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "Noto Sans", "PingFang SC", "Microsoft YaHei", sans-serif;
  color: var(--ink);
  background: var(--paper);
  font-synthesis: none;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
}

* { box-sizing: border-box; }
body { margin: 0; background: linear-gradient(180deg, #edf6f0 0, var(--paper) 470px); }
a { color: var(--green); text-underline-offset: 0.2em; text-decoration-thickness: 1px; }
a:hover { color: #184c39; }
a:focus-visible { outline: 2px solid var(--green); outline-offset: 5px; border-radius: 2px; }
.page { max-width: 880px; margin: 0 auto; padding: 0 44px; }
.site-header { min-height: 110px; display: flex; align-items: center; justify-content: space-between; gap: 24px; border-bottom: 1px solid var(--line); }
.brand { display: inline-flex; gap: 11px; align-items: center; font-size: 19px; font-weight: 650; letter-spacing: -0.5px; text-decoration: none; color: var(--ink); }
.brand-mark { display: grid; place-items: center; width: 30px; height: 30px; border-radius: 10px; background: #d1e8da; color: #286a52; font-size: 16px; font-weight: 750; }
.languages { display: flex; align-items: center; gap: 14px; font-size: 12px; }
.languages a { color: var(--muted); text-decoration: none; }
.languages span { padding: 7px 10px; border: 1px solid #cbded1; border-radius: 6px; color: #315d49; background: #ffffff80; }
.intro { padding: 70px 0 28px; }
.eyebrow { margin: 0 0 20px; color: var(--green); text-transform: uppercase; font-size: 11px; font-weight: 700; letter-spacing: 1.8px; }
h1 { margin: 0; font-size: clamp(36px, 6vw, 54px); line-height: 1.12; font-weight: 550; letter-spacing: -2.2px; }
.lead { max-width: 600px; margin: 22px 0 0; color: #53695c; font-size: 19px; line-height: 1.6; }
.date { margin: 25px 0 0; color: var(--muted); font-size: 12px; }
.summary { margin: 0 0 38px; padding: 23px 26px; border: 1px solid #d0e5d7; border-radius: 12px; background: #eaf4ed; }
.summary p { margin: 0; font-size: 14px; line-height: 1.8; color: #3b5c49; }
.summary strong { font-weight: 650; color: #284f3b; }
.policy { padding-bottom: 28px; }
section { padding: 31px 0 28px; border-top: 1px solid var(--line); }
h2 { display: flex; align-items: baseline; gap: 14px; margin: 0 0 18px; font-size: 19px; line-height: 1.45; font-weight: 650; letter-spacing: -0.3px; }
.section-number { flex: 0 0 24px; color: #88a292; font-size: 11px; font-weight: 500; letter-spacing: 1px; }
.policy p { margin: 0 0 15px 38px; font-size: 14px; line-height: 1.95; color: #506259; overflow-wrap: anywhere; }
.policy p:last-child { margin-bottom: 0; }
.policy strong { color: #344e3e; font-weight: 650; }
.site-footer { display: flex; justify-content: space-between; gap: 18px; padding: 27px 0 42px; border-top: 1px solid var(--line); color: var(--muted); font-size: 11px; line-height: 1.7; }
.site-footer p { margin: 0; }
.site-footer a { text-decoration: none; }
.not-found { min-height: 65vh; padding: 95px 0; }
.not-found p { color: var(--muted); line-height: 1.8; }
:lang(zh-CN) .eyebrow { letter-spacing: 2px; }
:lang(zh-CN) h1 { letter-spacing: -1px; }
:lang(zh-CN) .lead { line-height: 1.75; }
:lang(zh-CN) .policy p { line-height: 2; }

@media (max-width: 600px) {
  .page { padding: 0 23px; }
  .site-header { min-height: 85px; gap: 12px; }
  .brand { font-size: 17px; gap: 8px; }
  .brand-mark { width: 27px; height: 27px; border-radius: 8px; }
  .languages { gap: 10px; font-size: 11px; }
  .languages span { padding: 6px 8px; }
  .intro { padding-top: 47px; }
  h1 { letter-spacing: -1.4px; }
  .lead { font-size: 17px; margin-top: 19px; }
  .summary { padding: 20px; margin-bottom: 27px; }
  section { padding: 27px 0; }
  h2 { gap: 10px; font-size: 18px; }
  .section-number { flex-basis: 20px; }
  .policy p { margin-left: 0; }
  .site-footer { flex-direction: column; gap: 8px; padding-bottom: 32px; }
}

@media (prefers-reduced-motion: no-preference) {
  a { transition: color 120ms ease; }
}