:root {
  color-scheme: light;
  --paper: #f4f3ee;
  --paper-raised: #fbfaf6;
  --ink: #1f2923;
  --muted: #657069;
  --line: #ced4ce;
  --accent: #197451;
  --accent-soft: #e0eee6;
  --max: 1180px;
  font-family: "Avenir Next", "Noto Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
  background: var(--paper);
  color: var(--ink);
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; min-width: 320px; background: var(--paper); line-height: 1.75; }
a { color: inherit; text-decoration-color: color-mix(in srgb, currentColor 35%, transparent); text-underline-offset: .22em; }
a:hover { color: var(--accent); }
img { display: block; max-width: 100%; }
.skip-link { position: fixed; left: 1rem; top: -5rem; z-index: 20; background: var(--ink); color: white; padding: .75rem 1rem; }
.skip-link:focus { top: 1rem; }
.site-header { border-bottom: 1px solid var(--line); background: color-mix(in srgb, var(--paper) 93%, transparent); }
.header-inner { width: min(calc(100% - 3rem), var(--max)); min-height: 5.25rem; margin: auto; display: grid; grid-template-columns: 1fr minmax(0, 2fr) auto; align-items: center; gap: 2rem; }
.site-identity { display: inline-flex; align-items: center; gap: .8rem; text-decoration: none; letter-spacing: -.02em; }
.site-identity span { width: 2.25rem; height: 2.25rem; display: grid; place-items: center; border-radius: .55rem; background: var(--ink); color: white; font-weight: 800; }
.site-identity strong { font-size: .98rem; }
.site-header nav { min-width: 0; display: flex; justify-content: center; gap: 1.4rem; overflow: hidden; }
.site-header nav a { max-width: 10rem; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; color: var(--muted); font-size: .78rem; text-decoration: none; }
.header-trust { padding: .55rem .8rem; border: 1px solid var(--line); border-radius: 999px; color: var(--muted); font-size: .72rem; text-decoration: none; }
main { width: min(calc(100% - 3rem), var(--max)); min-height: 65vh; margin: auto; }
.eyebrow { margin: 0; color: var(--accent); font-size: .67rem; font-weight: 800; letter-spacing: .18em; text-transform: uppercase; }
.hero { min-height: 37rem; display: grid; grid-template-columns: minmax(0, 1.55fr) minmax(18rem, .65fr); align-items: center; gap: clamp(3rem, 8vw, 8rem); border-bottom: 1px solid var(--line); }
.hero-copy h1 { max-width: 13ch; margin: 1.1rem 0 1.5rem; font-size: clamp(2.7rem, 6.3vw, 5.9rem); line-height: 1.02; letter-spacing: -.065em; }
.hero-lead { max-width: 42rem; margin: 0; color: var(--muted); font-size: clamp(1.05rem, 2vw, 1.35rem); }
.hero-actions { display: flex; align-items: center; gap: 1.5rem; margin-top: 2.4rem; }
.primary-link { display: inline-flex; min-height: 3rem; align-items: center; padding: 0 1.15rem; border-radius: .55rem; background: var(--ink); color: white; font-size: .82rem; font-weight: 700; text-decoration: none; transition: transform .25s ease, background .25s ease; }
.primary-link:hover { background: var(--accent); color: white; transform: translateY(-2px); }
.text-link { font-size: .82rem; font-weight: 700; }
.hero-brief { align-self: end; margin-bottom: 4rem; padding: 1.5rem 0 0; border-top: 4px solid var(--ink); }
.hero-brief > span { color: var(--muted); font-size: .68rem; }
.hero-brief > strong { display: block; margin: .65rem 0 1.6rem; font-size: 1.2rem; line-height: 1.55; }
.hero-brief dl, .article-meta dl { margin: 0; }
.hero-brief dl div, .article-meta dl div { display: flex; justify-content: space-between; gap: 1rem; padding: .7rem 0; border-top: 1px solid var(--line); font-size: .72rem; }
.hero-brief dt, .article-meta dt { color: var(--muted); }
.hero-brief dd, .article-meta dd { margin: 0; text-align: right; }
.disclosure { margin: 2rem 0; display: grid; grid-template-columns: 9rem minmax(0, 1fr); gap: 2rem; padding: 1.25rem 1.5rem; border-left: 3px solid var(--accent); background: var(--accent-soft); }
.disclosure span { color: var(--accent); font-size: .7rem; font-weight: 800; }
.disclosure p { max-width: 60rem; margin: 0; font-size: .82rem; }
.disclosure.compact { margin: 1.75rem 0 3rem; }
.home-editorial { display: grid; grid-template-columns: minmax(0, 1.7fr) minmax(15rem, .55fr); gap: clamp(3rem, 8vw, 8rem); padding: 6rem 0; border-bottom: 1px solid var(--line); }
.editorial-note { align-self: start; padding-top: 1rem; border-top: 1px solid var(--ink); }
.editorial-note span { font-size: .7rem; font-weight: 800; }
.editorial-note p { color: var(--muted); font-size: .85rem; }
.topic-map { padding: 6rem 0; }
.section-intro { display: grid; grid-template-columns: 14rem minmax(0, 1fr); gap: 2rem; margin-bottom: 3.5rem; }
.section-intro h2 { max-width: 24ch; margin: 0; font-size: clamp(1.9rem, 4vw, 3.4rem); line-height: 1.12; letter-spacing: -.045em; }
.topic-list { border-top: 1px solid var(--ink); }
.topic-list > a { display: grid; grid-template-columns: 4rem minmax(0, 1fr) auto; gap: 1.5rem; align-items: center; padding: 1.6rem 0; border-bottom: 1px solid var(--line); text-decoration: none; transition: padding .25s ease, background .25s ease; }
.topic-list > a:hover { padding-left: 1rem; background: var(--paper-raised); }
.topic-list > a > span { color: var(--muted); font-family: ui-monospace, monospace; font-size: .72rem; }
.topic-list small { color: var(--accent); font-size: .64rem; font-weight: 800; }
.topic-list h3 { margin: .25rem 0; font-size: 1.08rem; }
.topic-list p { max-width: 60rem; margin: 0; color: var(--muted); font-size: .78rem; }
.topic-list b { font-size: 1.2rem; }
.breadcrumb { display: flex; gap: .7rem; align-items: center; padding: 1.5rem 0; border-bottom: 1px solid var(--line); color: var(--muted); font-size: .72rem; }
.article-shell { display: grid; grid-template-columns: 12rem minmax(0, 47rem); justify-content: space-between; gap: clamp(3rem, 9vw, 10rem); padding: 5rem 0 8rem; }
.article-meta { align-self: start; position: sticky; top: 2rem; }
.article-meta .eyebrow { margin-bottom: 1.5rem; }
.article-header { padding-bottom: 2.5rem; border-bottom: 1px solid var(--ink); }
.article-header h1 { margin: 0 0 1.5rem; font-size: clamp(2.4rem, 5.4vw, 4.8rem); line-height: 1.06; letter-spacing: -.055em; }
.article-header p { max-width: 45rem; margin: 0; color: var(--muted); font-size: 1.06rem; }
.prose { min-width: 0; color: #303a34; font-size: 1rem; overflow-wrap: anywhere; }
.prose > * { min-width: 0; max-width: 45rem; }
.prose h2, .prose h3 { color: var(--ink); line-height: 1.25; letter-spacing: -.025em; scroll-margin-top: 2rem; }
.prose h2 { margin: 3.6rem 0 1rem; padding-top: 1rem; border-top: 1px solid var(--line); font-size: 1.8rem; }
.prose h3 { margin: 2.4rem 0 .8rem; font-size: 1.3rem; }
.prose p, .prose li { line-height: 1.9; }
.prose a { color: var(--accent); }
.prose blockquote { margin: 2.5rem 0; padding: .4rem 0 .4rem 1.4rem; border-left: 3px solid var(--accent); color: var(--muted); }
.prose table { width: 100%; border-collapse: collapse; margin: 2rem 0; font-size: .82rem; }
.prose th, .prose td { padding: .75rem; border-bottom: 1px solid var(--line); text-align: left; }
.prose th { background: var(--paper-raised); }
.prose code { padding: .1rem .3rem; border-radius: .25rem; background: #e6e7e2; font-family: ui-monospace, monospace; font-size: .86em; }
.prose-home { font-size: 1.08rem; }
.brand-asset { margin: 2rem 0; }
.brand-asset figcaption { margin-top: .6rem; color: var(--muted); font-size: .72rem; }
.verified-destinations { margin: 4rem 0; padding: 2rem; background: var(--ink); color: white; }
.verified-destinations h2 { margin: .4rem 0; font-size: 1.7rem; }
.verified-destinations > p:not(.eyebrow) { color: #c8d0cb; font-size: .82rem; }
.verified-destinations > div { display: grid; gap: 1px; margin-top: 1.5rem; background: #4b554f; }
.verified-destinations a { display: flex; justify-content: space-between; gap: 2rem; padding: 1rem; background: var(--ink); color: white; text-decoration: none; }
.verified-destinations small { color: #aeb8b2; }
.related-content { margin-top: 5rem; padding-top: 2rem; border-top: 1px solid var(--ink); }
.related-content header { display: flex; justify-content: space-between; gap: 2rem; align-items: end; margin-bottom: 1.5rem; }
.related-content h2 { margin: .25rem 0 0; font-size: 1.6rem; }
.related-content > div { border-top: 1px solid var(--line); }
.related-content a { display: grid; grid-template-columns: 3rem minmax(0, 1fr) auto; gap: 1rem; align-items: center; padding: 1rem 0; border-bottom: 1px solid var(--line); text-decoration: none; }
.related-content a span { color: var(--muted); font-family: ui-monospace, monospace; font-size: .7rem; }
.related-content a strong { font-size: .84rem; }
.site-footer { width: min(calc(100% - 3rem), var(--max)); margin: 0 auto; padding: 4.5rem 0 2rem; border-top: 1px solid var(--ink); }
.footer-lead { display: flex; justify-content: space-between; gap: 2rem; align-items: end; }
.footer-lead h2 { margin: .4rem 0 0; font-size: clamp(1.8rem, 4vw, 3.2rem); letter-spacing: -.045em; }
.footer-lead > p { color: var(--muted); font-size: .78rem; }
.footer-grid { display: grid; grid-template-columns: 1.5fr 1fr 1fr; gap: 4rem; margin-top: 4rem; padding-top: 2rem; border-top: 1px solid var(--line); }
.footer-grid > div, .footer-grid nav { display: flex; flex-direction: column; align-items: flex-start; gap: .5rem; font-size: .76rem; }
.footer-grid p { margin: 0; color: var(--muted); }
.footer-grid strong { margin-bottom: .35rem; }
.footer-boundary { margin: 3rem 0 0; color: var(--muted); font-size: .72rem; }
@media (max-width: 900px) {
  .header-inner { grid-template-columns: 1fr auto; }
  .site-header nav { display: none; }
  .hero { min-height: auto; grid-template-columns: 1fr; gap: 3rem; padding: 5rem 0 2rem; }
  .hero-brief { margin-bottom: 0; }
  .home-editorial, .article-shell { grid-template-columns: 1fr; }
  .article-meta { position: static; display: none; }
  .section-intro { grid-template-columns: 1fr; }
}
@media (max-width: 640px) {
  .header-inner, main, .site-footer { width: min(calc(100% - 2rem), var(--max)); }
  .header-inner { min-height: 4.5rem; }
  .header-trust { display: none; }
  .hero { padding-top: 3.5rem; }
  .hero-copy h1, .article-header h1 { font-size: 2.6rem; }
  .hero-actions { align-items: flex-start; flex-direction: column; }
  .disclosure { grid-template-columns: 1fr; gap: .5rem; }
  .home-editorial, .topic-map { padding: 4rem 0; }
  .topic-list > a { grid-template-columns: 2.2rem minmax(0, 1fr); }
  .topic-list > a > b { display: none; }
  .topic-list p { display: none; }
  .article-shell { padding: 3rem 0 5rem; }
  .verified-destinations { margin-inline: -1rem; padding: 1.25rem 1rem; }
  .verified-destinations a { flex-direction: column; gap: .3rem; }
  .footer-lead { align-items: flex-start; flex-direction: column; }
  .footer-grid { grid-template-columns: 1fr; gap: 2rem; }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { transition-duration: .01ms !important; }
}