:root {
  color-scheme: light;
  --paper: #faf9f6;
  --ink: #26342c;
  --muted: #626a62;
  --accent: #506943;
  --gold: #996034;
  --line: #d7dacf;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-synthesis: none;
  background: var(--paper);
  color: var(--ink);
}
* { box-sizing: border-box; }
body { margin: 0; font-size: 16px; line-height: 1.6; -webkit-font-smoothing: antialiased; }
button, summary, a { -webkit-tap-highlight-color: transparent; touch-action: manipulation; }
button { color: inherit; font: inherit; cursor: pointer; }
a { color: var(--accent); text-underline-offset: 3px; }
a:hover { text-decoration-thickness: 2px; }
button:focus-visible, a:focus-visible, summary:focus-visible, [tabindex]:focus-visible { outline: 2px solid var(--accent); outline-offset: 4px; }
[hidden] { display: none !important; }
h1, h2, h3, p { margin: 0; }
h1, h2, h3 { font-weight: 550; line-height: 1.2; }
.page { max-width: 1120px; margin: 0 auto; padding: 0 36px; }
.site-header { padding: 44px 0 26px; }
#language-toggle { float: right; min-height: 44px; min-width: 48px; padding: 7px 11px; margin-left: 12px; background: none; border: 1px solid var(--line); font-size: 14px; }
html[lang="zh-CN"] { font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "Noto Sans CJK SC", "Microsoft YaHei", sans-serif; }
html[lang="zh-CN"] h1, html[lang="zh-CN"] h2 { letter-spacing: 0; }
.flight-options { border-top: 1px solid var(--line); padding: 28px 0; }
.flight-options h2 { font-size: 24px; margin-bottom: 12px; }
.flight-options h3 { font-size: 17px; margin: 22px 0 10px; }
.flight-options p { margin: 8px 0; }
.flight-options .flight-meta { font-size: 13px; color: var(--muted); }
.flight-table-wrap { overflow-x: auto; }
.flight-table { border-collapse: collapse; width: 100%; font-size: 14px; text-align: left; }
.flight-table th, .flight-table td { padding: 12px 12px 12px 0; border-bottom: 1px solid var(--line); vertical-align: top; }
.flight-table th { font-weight: 600; }
.flight-table td:last-child, .flight-table th:last-child { padding-right: 0; }
.flight-table small { display: block; font-size: 12px; color: var(--muted); margin-top: 3px; }
.flight-options details { margin-top: 20px; }
.flight-options li { margin: 10px 0; }
.roundtrip-pricing { border-left: 2px solid var(--gold); padding-left: 16px; margin: 24px 0 28px; }
.reported-price { font-size: 20px; font-weight: 550; }
.route-shortlist { display: grid; grid-template-columns: 150px minmax(0,1fr); gap: 10px 20px; font-size: 14px; margin: 18px 0 24px; }
.route-shortlist dt { color: var(--muted); }
.route-shortlist dd { margin: 0; }
.flight-options .flight-carrier { margin: 0; border-top: 1px solid var(--line); }
.flight-carrier > summary { cursor: pointer; padding: 16px 0; min-height: 64px; }
.carrier-summary { display: inline-grid; grid-template-columns: 240px minmax(0,1fr) 150px; width: calc(100% - 24px); align-items: baseline; gap: 8px 20px; vertical-align: top; }
.carrier-summary > span { font-size: 13px; font-weight: 400; }
.carrier-action { color: var(--muted); text-align: right; }
.flight-option { padding: 8px 0 24px 24px; max-width: 780px; }
.flight-option + .flight-option { border-top: 1px solid var(--line); padding-top: 22px; }
.flight-option-heading { display: flex; justify-content: space-between; gap: 10px; font-size: 14px; }
.flight-option-heading > span { color: var(--muted); }
.flight-options .flight-overview { font-size: 13px; color: var(--muted); margin: 6px 0 15px; }
.flight-options .flight-timing-note { font-size: 13px; color: var(--gold); }
.flight-segments { list-style: none; margin: 0; padding: 0; }
.flight-options .flight-segment { margin: 0; padding: 17px 0; }
.segment-flight { display: flex; flex-wrap: wrap; gap: 6px 16px; align-items: baseline; font-size: 12px; color: var(--muted); margin-bottom: 10px; }
.segment-flight strong { color: var(--ink); font-size: 14px; }
.segment-route { display: grid; grid-template-columns: minmax(0,1fr) 30px minmax(0,1fr); gap: 16px; align-items: start; }
.flight-endpoint { display: grid; grid-template-columns: auto 1fr; align-items: baseline; gap: 0 12px; }
.flight-endpoint time { font-size: 24px; line-height: 1.2; font-variant-numeric: tabular-nums; }
.flight-endpoint strong { font-size: 16px; }
.segment-date, .airport-city { font-size: 12px; color: var(--muted); }
.segment-arrow { color: var(--muted); text-align: center; font-size: 20px; }
.flight-options .segment-seat, .flight-options .segment-via { font-size: 13px; margin: 8px 0 0; }
.flight-options .segment-via { color: var(--gold); }
.flight-options .segment-connection { border-top: 1px dashed var(--line); border-bottom: 1px dashed var(--line); padding: 9px 0; margin: 0; font-size: 13px; color: var(--gold); }
@media(max-width:640px) {
 .route-shortlist { grid-template-columns: minmax(0,1fr); gap: 2px; }
 .route-shortlist dd { margin-bottom: 10px; }
 .carrier-summary { grid-template-columns: minmax(0,1fr); gap: 3px; }
 .carrier-action { text-align: left; }
 .flight-option { padding-left: 0; }
 .segment-route { gap: 8px; grid-template-columns: minmax(0,1fr) 20px minmax(0,1fr); }
 .flight-endpoint { grid-template-columns: minmax(0,1fr); }
 .flight-endpoint time { font-size: 24px; }
 .flight-endpoint strong { grid-row: 2; }
 .airport-city { overflow-wrap: anywhere; }
}
@media(max-width:640px) {
  .flight-options a { display: inline-flex; align-items: center; min-height: 44px; min-width: 44px; padding: 6px 2px; }
  .flight-options summary { min-height: 44px; padding: 9px 0; cursor: pointer; }
  .flight-options .flight-meta a { max-width: 100%; overflow-wrap: anywhere; }
  .flight-table thead { display: none; }
  .flight-table, .flight-table tbody, .flight-table tr, .flight-table td { display: block; }
  .flight-table tr { padding: 12px 0; border-bottom: 1px solid var(--line); }
  .flight-table td { padding: 3px 0; border: 0; }
  .flight-table td:first-child { font-weight: 600; font-size: 16px; }
  .flight-table td::before { content: attr(data-label); font-size: 12px; color: var(--muted); margin-right: 7px; font-weight: 400; }
  .flight-table td:first-child::before { content: none; }
}
h1 { font-size: 36px; letter-spacing: -1.2px; }
.trip-dates { margin-top: 7px; font-size: 17px; }
.trip-summary { margin-top: 14px; }
.booking-note { color: var(--muted); font-size: 14px; margin-top: 5px; }
.day-navigation { position: sticky; top: 0; z-index: 5; background: var(--paper); border-bottom: 1px solid var(--line); }
#day-tabs { display: flex; overflow-x: auto; overscroll-behavior-x: contain; scrollbar-width: thin; scrollbar-color: var(--line) transparent; padding-top: 5px; }
.day-tab { flex: 1 0 94px; background: none; border: 0; border-bottom: 2px solid transparent; padding: 10px 9px 12px; text-align: left; min-height: 64px; white-space: nowrap; }
.day-tab[aria-selected="true"] { border-bottom-color: var(--ink); color: var(--ink); }
.day-tab:hover { background: #eeeee6; }
.day-tab[aria-selected="false"] { color: var(--muted); }
.tab-date { display: block; font-size: 15px; font-weight: 600; }
.tab-label { display: block; font-size: 12px; margin-top: 1px; font-weight: 400; }
.day-tab:focus-visible { outline-offset: -4px; }
.scroll-hint { display: none; font-size: 12px; color: var(--muted); padding: 5px 0; }
#day-panel { display: grid; grid-template-columns: minmax(0, 1.12fr) minmax(0, 1fr); column-gap: 48px; grid-template-areas: "intro map" "content map"; padding-top: 32px; scroll-margin-top: 105px; }
.day-intro { grid-area: intro; }
.eyebrow { color: var(--muted); font: 12px/1.6 ui-monospace, SFMono-Regular, Consolas, monospace; margin-bottom: 10px; }
h2 { font-size: 29px; letter-spacing: -.7px; }
#day-summary { margin-top: 13px; }
.day-content { grid-area: content; min-width: 0; }
.day-facts { margin: 25px 0 28px; padding-top: 15px; border-top: 1px solid var(--line); }
.fact { display: grid; grid-template-columns: 86px minmax(0, 1fr); gap: 12px; margin-bottom: 12px; font-size: 14px; }
.fact dt { color: var(--muted); }
.fact dd { margin: 0; }
.fact-detail { display: block; color: var(--muted); font-size: 13px; margin-top: 2px; }
.section-heading { font-size: 12px; font-weight: 600; text-transform: uppercase; letter-spacing: .09em; margin-bottom: 16px; }
.schedule { list-style: none; margin: 0; padding: 0; }
.schedule li { display: grid; grid-template-columns: 86px minmax(0, 1fr); gap: 12px; padding-bottom: 23px; }
.schedule-time { color: var(--muted); font-size: 13px; padding-top: 2px; }
.schedule h4 { font-size: 15px; line-height: 1.5; font-weight: 600; margin: 0 0 4px; }
.schedule p { font-size: 14px; color: var(--muted); }
.day-note { border-left: 2px solid var(--gold); padding: 0 0 0 16px; margin-top: 5px; font-size: 14px; }
.day-note h3 { font-size: 14px; margin-bottom: 6px; }
.day-note p { color: var(--muted); }
.map-section { grid-area: map; min-width: 0; align-self: start; position: sticky; top: 113px; }
#route-map { width: 100%; }
.map-caption { color: var(--muted); font-size: 13px; margin-top: 12px; }
.day-pagination { display: flex; justify-content: space-between; align-items: center; gap: 10px; border-top: 1px solid var(--line); margin-top: 32px; padding: 14px 0; }
.day-pagination button { border: 0; background: transparent; min-height: 44px; padding: 8px 0; font-size: 14px; }
.day-pagination button:hover:not(:disabled) { text-decoration: underline; text-underline-offset: 4px; }
.day-pagination button:disabled { color: #8a9085; cursor: default; }
#day-position { font-size: 12px; color: var(--muted); white-space: nowrap; }
footer { margin-top: 20px; border-top: 1px solid var(--line); padding: 20px 0 36px; color: var(--muted); font-size: 12px; }
footer summary { cursor: pointer; min-height: 44px; padding: 12px 0 8px; color: var(--ink); }
footer details p { max-width: 740px; margin: 8px 0; }
footer ul { list-style: none; padding: 0; margin: 4px 0; }
footer li a { display: inline-flex; min-height: 44px; align-items: center; }
.visually-hidden { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip-path: inset(50%); white-space: nowrap; border: 0; }
.skip-link { position: fixed; top: -100px; left: 16px; z-index: 20; background: var(--paper); padding: 10px; }
.skip-link:focus { top: 10px; }
.noscript-itinerary { margin-top: 30px; }
.noscript-itinerary p { margin-top: 12px; }
@media (max-width: 780px) {
  .page { padding: 0 22px; }
  .site-header { padding-top: 26px; }
  #day-panel { column-gap: 26px; }
  .day-tab { flex-basis: 87px; }
  .scroll-hint { display: block; }
}
@media (max-width: 640px) {
  .page { padding: 0 18px; }
  .site-header { padding: 25px 0 20px; }
  h1 { font-size: 31px; }
  .trip-dates { font-size: 15px; }
  .trip-summary { font-size: 14px; margin-top: 12px; }
  .booking-note { font-size: 12px; }
  #day-panel { grid-template-columns: minmax(0, 1fr); grid-template-areas: "intro" "map" "content"; padding-top: 24px; }
  h2 { font-size: 25px; }
  #day-summary { font-size: 15px; }
  .map-section { position: static; margin-top: 25px; }
  .map-section .section-heading { margin-bottom: 10px; }
  .day-facts { margin-top: 22px; }
  .fact, .schedule li { grid-template-columns: 72px minmax(0, 1fr); gap: 12px; }
  .day-pagination { margin-top: 24px; }
}
@media (max-width: 359px) {
  .page { padding: 0 14px; }
  #day-position { font-size: 11px; }
  .day-pagination button { font-size: 13px; }
}
@media (prefers-reduced-motion: reduce) { *, *::before, *::after { scroll-behavior: auto !important; animation: none !important; transition: none !important; } }
@media print {
  .page { max-width: none; padding: 0; }
  .site-header { padding-top: 0; }
  .day-navigation, .day-pagination, .skip-link { display: none; }
  #day-panel { display: block; }
  .map-section { position: static; max-width: 420px; margin: 20px 0; }
  footer details { display: none; }
}