/* Shared visual system: keep every public page readable without scripts. */
:root {
  color-scheme: light;
  --ink: #12243c;
  --muted: #4e6075;
  --blue: #1758d6;
  --blue-dark: #1046ad;
  --line: #dbe3ed;
  --wash: #f3f6fb;
  --paper: #fff;
  --max: 1200px;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
  font-synthesis: none;
  color: var(--ink);
  background: var(--paper);
}
* { box-sizing: border-box; }
html { scroll-padding-top: 2rem; }
body { margin: 0; font-size: 1rem; line-height: 1.7; -webkit-text-size-adjust: 100%; }
a { color: var(--blue); text-underline-offset: .22em; }
a:hover { color: var(--blue-dark); }
a:focus-visible, summary:focus-visible { outline: 3px solid var(--blue); outline-offset: 5px; border-radius: 2px; }
::selection { background: #dce9ff; }
h1, h2, h3, p { margin-top: 0; }
h1, h2, h3 { font-weight: 650; }
h1, h2 { text-wrap: balance; }
h1 { font-size: clamp(2.65rem, 4.8vw, 4.5rem); line-height: 1.08; letter-spacing: -.055em; }
h2 { font-size: clamp(1.8rem, 3vw, 2.7rem); line-height: 1.2; letter-spacing: -.035em; }
h3 { font-size: 1.3rem; line-height: 1.35; letter-spacing: -.02em; }
p { margin-bottom: 1.2rem; }
address { font-style: normal; }
img, svg { max-width: 100%; }
.wrap { max-width: var(--max); margin-inline: auto; padding-inline: 2rem; }
.skip-link { position: absolute; z-index: 10; top: .5rem; left: 1rem; transform: translateY(-180%); background: var(--paper); padding: .7rem 1rem; }
.skip-link:focus { transform: none; }
.site-header { border-bottom: 1px solid var(--line); }
.header-inner { display: flex; align-items: center; justify-content: space-between; gap: 1.5rem; min-height: 96px; }
.brand { display: inline-flex; align-items: center; gap: .75rem; color: var(--ink); font-size: 1.13rem; font-weight: 700; letter-spacing: -.025em; text-decoration: none; white-space: nowrap; }
.brand img { width: 36px; height: 36px; }
.header-right, .main-nav, .languages { display: flex; align-items: center; }
.header-right { gap: 2rem; }
.main-nav { gap: 1.6rem; }
.main-nav a { color: var(--ink); font-size: .9rem; text-decoration: none; }
.main-nav a:hover { color: var(--blue); text-decoration: underline; }
.languages { gap: .6rem; border-left: 1px solid var(--line); padding-left: 1.2rem; font-size: .875rem; white-space: nowrap; }
.languages a { text-decoration: none; }
.languages [aria-current] { color: var(--ink); font-weight: 700; }
.eyebrow { display: flex; align-items: center; gap: .75rem; color: var(--blue); font-size: .8rem; font-weight: 700; letter-spacing: .12em; text-transform: uppercase; margin-bottom: 1.5rem; }
.eyebrow::before { content: ""; display: block; width: 1.6rem; height: 2px; background: currentColor; }
.hero { padding-block: 5.5rem 5rem; display: grid; grid-template-columns: 1.25fr .85fr; gap: 4rem; align-items: center; }
.hero h1 { margin-bottom: 1.6rem; }
.hero h1 span { color: var(--blue); }
.hero-copy > p:not(.eyebrow) { max-width: 35rem; font-size: 1.15rem; color: var(--muted); line-height: 1.75; }
.actions { display: flex; flex-wrap: wrap; align-items: center; gap: 1rem 1.7rem; margin-top: 2rem; }
.button { display: inline-flex; gap: 1.3rem; align-items: center; justify-content: center; min-height: 48px; padding: .8rem 1.35rem; background: var(--blue); color: white; border-radius: 4px; font-size: .95rem; font-weight: 600; text-decoration: none; }
.button:hover { background: var(--blue-dark); color: white; }
.text-link { font-weight: 600; font-size: .95rem; }
.service-map { margin: 0; background: var(--wash); border: 1px solid var(--line); border-radius: 8px; padding: 1.7rem; }
.map-label { margin: 0 0 1.4rem; color: var(--muted); font-size: .75rem; font-weight: 600; letter-spacing: .13em; text-transform: uppercase; }
.map-title { display: flex; align-items: flex-start; justify-content: space-between; gap: 1rem; padding-bottom: 1.5rem; border-bottom: 1px solid var(--line); }
.map-title strong { display: block; font-size: 1.8rem; line-height: 1.2; letter-spacing: -.04em; }
.map-title p { margin: .4rem 0 0; color: var(--muted); font-size: .875rem; }
.map-symbol { color: var(--blue); font-size: 2rem; line-height: 1; }
.map-rows { list-style: none; margin: 0; padding: 0; }
.map-rows li { display: grid; grid-template-columns: 2rem 1fr; gap: .8rem; padding: 1.3rem 0; border-bottom: 1px solid var(--line); }
.map-number { color: var(--blue); font-size: .8rem; padding-top: .2rem; font-variant-numeric: tabular-nums; }
.map-rows strong { display: block; font-size: 1rem; line-height: 1.4; }
.map-rows small { display: block; color: var(--muted); font-size: .875rem; margin-top: .2rem; }
.service-map figcaption { margin-top: 1.3rem; font-size: .8rem; color: var(--muted); }
.section { padding-block: 4.5rem; border-top: 1px solid var(--line); }
.section-heading { display: grid; grid-template-columns: .65fr 1.35fr; gap: 3rem; margin-bottom: 2.5rem; }
.section-heading h2 { margin-bottom: .8rem; }
.section-heading > .eyebrow { align-self: start; margin-top: .45rem; }
.section-heading p { max-width: 40rem; color: var(--muted); margin-bottom: 0; }
.service-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 2.5rem; }
.service { border-top: 2px solid var(--ink); padding-top: 1.3rem; }
.service-number { color: var(--blue); font-size: .85rem; font-weight: 600; margin-bottom: 1.6rem; }
.service h3 { margin-bottom: .8rem; }
.service p { color: var(--muted); font-size: 1rem; margin-bottom: 0; }
.company-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 3.5rem; }
.company-grid h3 { font-size: 1.65rem; max-width: 30rem; }
.company-grid p { color: var(--muted); }
.company-facts { border-top: 1px solid var(--line); margin: 0; }
.company-facts div { padding: 1rem 0; border-bottom: 1px solid var(--line); }
.company-facts dt { font-size: .85rem; color: var(--muted); margin-bottom: .3rem; }
.company-facts dd { margin: 0; font-size: .95rem; }
.contact { background: var(--wash); }
.contact-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 3.5rem; }
.contact-grid h2 { max-width: 25rem; }
.contact-grid p { color: var(--muted); }
.contact-details { padding-top: .4rem; }
.contact-details dt { color: var(--muted); font-size: .875rem; }
.contact-details dd { margin: .3rem 0 1.5rem; }
.email { font-size: clamp(1rem, 2.2vw, 1.45rem); font-weight: 600; overflow-wrap: anywhere; }
.contact-links { display: flex; flex-wrap: wrap; gap: .7rem 1.5rem; font-size: .9rem; }
.site-footer { border-top: 1px solid var(--line); padding-block: 3rem 1.5rem; font-size: .875rem; color: var(--muted); }
.footer-grid { display: grid; grid-template-columns: 1fr 1.3fr 1fr; gap: 2rem; }
.footer-grid strong { display: block; color: var(--ink); font-size: .95rem; margin-bottom: .5rem; }
.footer-grid p { margin-bottom: .5rem; }
.footer-grid a { overflow-wrap: anywhere; }
.footer-label { display: block; font-size: .8rem; margin-top: .6rem; }
.footer-bottom { margin-top: 2rem; padding-top: 1.3rem; border-top: 1px solid var(--line); display: flex; flex-wrap: wrap; justify-content: space-between; gap: 1rem 2rem; }
.footer-bottom p { margin: 0; }
.footer-links { display: flex; flex-wrap: wrap; gap: .5rem 1.5rem; }
.document-header { padding-block: 4rem 3rem; border-bottom: 1px solid var(--line); }
.document-header h1 { font-size: clamp(2.4rem, 4vw, 3.6rem); max-width: 55rem; margin-bottom: 1rem; }
.document-header .lead { max-width: 46rem; color: var(--muted); font-size: 1.1rem; }
.document-header .updated { color: var(--muted); font-size: .85rem; margin-bottom: 0; }
.document-grid { display: grid; grid-template-columns: 15rem minmax(0, 1fr); gap: 4rem; padding-block: 3rem 5rem; }
.document-nav { align-self: start; border-left: 2px solid var(--line); padding-left: 1.2rem; }
.document-nav p { font-weight: 600; font-size: .9rem; margin-bottom: .8rem; }
.document-nav ol { list-style: none; padding: 0; margin: 0; }
.document-nav li { margin-bottom: .65rem; line-height: 1.5; }
.document-nav a { color: var(--muted); font-size: .9rem; text-decoration: none; }
.document-nav a:hover { color: var(--blue); text-decoration: underline; }
.prose { min-width: 0; max-width: 48rem; }
.prose h2 { font-size: 1.55rem; letter-spacing: -.025em; padding-top: 1.8rem; margin-bottom: 1rem; }
.prose h2:first-child { padding-top: 0; }
.prose h3 { font-size: 1.1rem; margin-top: 1.4rem; }
.prose p, .prose li { color: var(--muted); }
.prose strong { color: var(--ink); }
.prose a { overflow-wrap: anywhere; }
.prose ul, .prose ol { padding-left: 1.4rem; margin-bottom: 1.3rem; }
.prose li { margin-bottom: .6rem; }
.prose table { width: 100%; border-collapse: collapse; margin-block: 1.4rem; font-size: .95rem; }
.prose th, .prose td { padding: .8rem; text-align: left; vertical-align: top; border: 1px solid var(--line); overflow-wrap: anywhere; }
.prose th { background: var(--wash); font-weight: 600; }
.prose .notice { background: var(--wash); padding: 1.3rem; border-left: 3px solid var(--blue); }
:lang(zh-CN) h1 { letter-spacing: -.035em; line-height: 1.2; }
:lang(zh-CN) .hero h1 { font-size: clamp(2.6rem, 4.5vw, 4.2rem); }
:lang(zh-CN) h2, :lang(zh-CN) h3 { letter-spacing: -.015em; }
/* A single column and wrapped navigation keep both translations usable at zoom. */
@media (max-width: 1000px) {
  .header-right { gap: 1.2rem; }
  .main-nav { gap: 1rem; }
  .hero { gap: 2rem; grid-template-columns: 1.2fr 1fr; padding-block: 4rem; }
  .section-heading { grid-template-columns: .55fr 1.45fr; gap: 1.5rem; }
  .document-grid { grid-template-columns: 12rem minmax(0, 1fr); gap: 2.5rem; }
}
@media (max-width: 760px) {
  .wrap { padding-inline: 1.3rem; }
  .header-inner { min-height: 0; flex-wrap: wrap; gap: 1rem; padding-block: 1.1rem; }
  .header-right { width: 100%; justify-content: space-between; flex-wrap: wrap; gap: .9rem; }
  .main-nav { flex-wrap: wrap; gap: .6rem 1.1rem; }
  .languages { padding-left: .8rem; }
  .hero { grid-template-columns: 1fr; gap: 2.5rem; padding-block: 3rem; }
  .hero h1 { max-width: 35rem; }
  .hero-copy > p:not(.eyebrow) { font-size: 1.05rem; }
  .service-map { max-width: 34rem; width: 100%; }
  .section { padding-block: 3rem; }
  .section-heading, .service-grid, .company-grid, .contact-grid { grid-template-columns: 1fr; gap: 1.8rem; }
  .section-heading { gap: .7rem; margin-bottom: 2rem; }
  .service-number { margin-bottom: .7rem; }
  .footer-grid { grid-template-columns: 1fr; gap: 1.5rem; }
  .document-header { padding-block: 2.5rem 2rem; }
  .document-grid { grid-template-columns: 1fr; gap: 2rem; padding-block: 2rem 3rem; }
  .document-nav ol { display: flex; flex-wrap: wrap; gap: .5rem 1rem; }
  .document-nav li { margin: 0; }
  .prose table { font-size: .875rem; }
  .prose th, .prose td { padding: .6rem; }
}
@media print {
  .site-header, .skip-link, .document-nav, .actions { display: none; }
  .wrap { padding: 0; max-width: none; }
  .document-grid { display: block; }
  .section { padding-block: 1.5rem; }
  a { color: inherit; }
}