:root {
  color-scheme: dark;
  --bg: #071614;
  --panel: #0a211e;
  --panel-soft: rgba(11, 38, 34, .78);
  --line: rgba(162, 229, 211, .15);
  --line-strong: rgba(162, 229, 211, .28);
  --text: #eef8f4;
  --muted: #8eaaa3;
  --mint: #70e4c5;
  --mint-strong: #a2f5dd;
  --orange: #f0a362;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; min-width: 320px; min-height: 100vh; color: var(--text); background: radial-gradient(circle at 78% -8%, rgba(48, 142, 119, .22), transparent 34rem), var(--bg); font-family: "PingFang SC", "Microsoft YaHei", system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif; -webkit-font-smoothing: antialiased; }
a { color: inherit; }

.site-header { height: 68px; padding: 0 clamp(18px, 5vw, 72px); display: flex; align-items: center; justify-content: space-between; gap: 20px; border-bottom: 1px solid var(--line); background: rgba(4, 16, 15, .7); backdrop-filter: blur(16px); }
.site-brand { display: inline-flex; align-items: center; gap: 10px; font-size: 17px; font-weight: 700; text-decoration: none; }
.site-brand i { width: 33px; height: 33px; display: grid; place-items: center; border: 1px solid rgba(112, 228, 197, .4); border-radius: 50%; color: var(--mint); background: rgba(112, 228, 197, .08); font-size: 18px; font-style: normal; transform: rotate(-18deg); }
.header-link { color: var(--mint-strong); font-size: 14px; text-decoration: none; }

.directory-shell { width: min(1180px, calc(100% - 32px)); margin: 0 auto; padding: 38px 0 48px; }
.breadcrumbs { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 26px; color: var(--muted); font-size: 13px; }
.breadcrumbs a { text-underline-offset: 3px; }
.eyebrow { margin: 0 0 10px; color: var(--mint); font-size: 12px; font-weight: 800; letter-spacing: .2em; }
h1 { margin: 0; max-width: 920px; font-size: clamp(32px, 5vw, 56px); line-height: 1.12; letter-spacing: -.045em; font-weight: 650; }
.lead { max-width: 850px; margin: 17px 0 0; color: var(--muted); font-size: 16px; line-height: 1.85; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 22px; }
.button { display: inline-flex; align-items: center; min-height: 43px; padding: 0 15px; border: 1px solid var(--line-strong); border-radius: 11px; color: var(--mint-strong); background: rgba(112, 228, 197, .07); text-decoration: none; font-size: 14px; }
.button-primary { color: #061513; border-color: var(--mint); background: var(--mint); font-weight: 700; }

.summary-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; margin: 32px 0 40px; }
.summary-card { padding: 20px; border: 1px solid var(--line); border-radius: 16px; background: var(--panel-soft); }
.summary-card strong { display: block; color: var(--mint-strong); font: 600 28px ui-monospace, SFMono-Regular, Menlo, monospace; }
.summary-card span { display: block; margin-top: 5px; color: var(--muted); font-size: 14px; }

.region-section { margin-top: 20px; padding: 24px; border: 1px solid var(--line); border-radius: 18px; background: linear-gradient(145deg, rgba(13, 42, 38, .8), rgba(5, 21, 19, .94)); }
.region-heading { display: flex; align-items: baseline; justify-content: space-between; gap: 16px; margin-bottom: 16px; }
.region-heading h2 { margin: 0; font-size: 23px; font-weight: 650; }
.region-heading span { color: var(--muted); font-size: 14px; }
.airport-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 8px; }
.airport-link { min-width: 0; padding: 13px 14px; display: grid; grid-template-columns: 42px minmax(0, 1fr) auto; align-items: center; gap: 10px; border: 1px solid rgba(162, 229, 211, .1); border-radius: 11px; background: rgba(3, 16, 14, .38); text-decoration: none; transition: border-color 160ms ease, background 160ms ease, transform 160ms ease; }
.airport-link:hover { border-color: rgba(112, 228, 197, .38); background: rgba(112, 228, 197, .07); transform: translateY(-1px); }
.airport-link code { color: var(--mint); font: 700 12px ui-monospace, SFMono-Regular, Menlo, monospace; letter-spacing: .08em; }
.airport-name { min-width: 0; overflow: hidden; white-space: nowrap; text-overflow: ellipsis; font-size: 14px; }
.airport-traffic { color: var(--muted); font-size: 12px; white-space: nowrap; }

.airport-hero { padding: 30px; border: 1px solid var(--line); border-radius: 22px; background: linear-gradient(145deg, rgba(13, 42, 38, .86), rgba(5, 21, 19, .96)); }
.airport-meta { display: flex; flex-wrap: wrap; align-items: center; gap: 10px; margin-bottom: 12px; }
.code-badge, .status-badge { padding: 6px 9px; border: 1px solid var(--line-strong); border-radius: 999px; color: var(--mint); font: 700 12px ui-monospace, SFMono-Regular, Menlo, monospace; letter-spacing: .08em; }
.status-badge { color: var(--muted); font-family: inherit; font-weight: 600; letter-spacing: 0; }
.airport-hero h1 { font-size: clamp(34px, 5vw, 58px); }
.facts { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1px; margin-top: 28px; overflow: hidden; border: 1px solid var(--line); border-radius: 14px; background: var(--line); }
.fact { min-height: 108px; padding: 18px; background: rgba(6, 26, 23, .98); }
.fact span { display: block; color: var(--muted); font-size: 13px; }
.fact strong { display: block; margin-top: 9px; color: var(--mint-strong); font-size: 20px; line-height: 1.3; }
.content-card { margin-top: 18px; padding: 26px 28px; border: 1px solid var(--line); border-radius: 18px; background: var(--panel-soft); }
.content-card h2 { margin: 0 0 12px; font-size: 22px; }
.content-card p { margin: 0; color: var(--muted); font-size: 16px; line-height: 1.9; }
.related-links { display: flex; flex-wrap: wrap; gap: 8px; }
.related-links a { padding: 9px 11px; border: 1px solid var(--line); border-radius: 9px; color: #cce9e1; background: rgba(112, 228, 197, .04); text-decoration: none; font-size: 14px; }
.source-note { margin-top: 22px; color: #6f8b84; font-size: 13px; line-height: 1.7; }
.site-footer { width: min(1180px, calc(100% - 32px)); margin: 0 auto; padding: 20px 0 30px; border-top: 1px solid var(--line); color: #6f8b84; font-size: 13px; line-height: 1.7; }

@media (max-width: 900px) {
  .airport-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .facts { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 620px) {
  .site-header { height: 62px; }
  .directory-shell { padding-top: 28px; }
  .summary-grid, .airport-grid { grid-template-columns: 1fr; }
  .region-section, .airport-hero, .content-card { padding: 20px; }
  .airport-link { grid-template-columns: 42px minmax(0, 1fr); }
  .airport-traffic { grid-column: 2; }
  .facts { grid-template-columns: 1fr 1fr; }
  .fact { min-height: 96px; padding: 15px; }
  .fact strong { font-size: 17px; }
}