:root {
  --bg: #eef7f6;
  --panel: #fffdf8;
  --ink: #12272f;
  --muted: #60727a;
  --line: #cfe1df;
  --teal: #087e8b;
  --deep: #0c3b4a;
  --coral: #d96c5f;
  --sand: #ead7ad;
  --gold: #b8872d;
  --shadow: 0 18px 44px rgba(12, 59, 74, .14);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  min-height: 100vh;
  font-family: "Segoe UI", "Microsoft YaHei", Arial, sans-serif;
  color: var(--ink);
  background: var(--bg);
  line-height: 1.55;
}
a { color: inherit; text-decoration: none; }
button, input, select { font: inherit; }
.skip-link {
  position: fixed;
  left: 12px;
  top: 12px;
  z-index: 999;
  transform: translateY(-140%);
  padding: 8px 12px;
  border-radius: 8px;
  background: #fff;
  box-shadow: var(--shadow);
}
.skip-link:focus { transform: translateY(0); }

.sidebar {
  position: fixed;
  inset: 0 auto 0 0;
  width: 252px;
  padding: 22px 18px;
  color: #fff;
  background: #0b2f3b;
  display: flex;
  flex-direction: column;
  gap: 22px;
  z-index: 20;
}
.brand { display: flex; align-items: center; gap: 12px; }
.brand-mark {
  display: grid;
  place-items: center;
  width: 46px;
  height: 46px;
  border-radius: 8px;
  background: linear-gradient(135deg, #60d5d4, #ffe0a3);
  color: #07242d;
  font-weight: 900;
}
.brand strong, .brand small { display: block; }
.brand small { color: #b9d4d8; }
.nav { display: grid; gap: 6px; }
.nav a {
  padding: 10px 12px;
  border-radius: 8px;
  color: #d5e8eb;
  font-weight: 800;
}
.nav a.active, .nav a:hover { background: rgba(255,255,255,.12); color: #fff; }
.side-note {
  margin-top: auto;
  padding: 14px;
  border: 1px solid rgba(255,255,255,.18);
  border-radius: 8px;
  background: rgba(255,255,255,.08);
}
.side-note b, .side-note span { display: block; }
.side-note span { color: #d5e8eb; font-size: 13px; margin-top: 6px; }

main { margin-left: 252px; padding: 28px; }
.hero, .section { max-width: 1320px; margin: 0 auto 24px; }
.hero {
  min-height: 58vh;
  display: grid;
  align-content: end;
  gap: 22px;
  padding: 48px;
  border-radius: 0 0 8px 8px;
  color: #fff;
  background:
    linear-gradient(90deg, rgba(7,36,45,.88), rgba(7,36,45,.58), rgba(7,36,45,.2)),
    url("https://images.unsplash.com/photo-1573843981267-be1999ff37cd?auto=format&fit=crop&w=1800&q=80") center/cover;
}
.hero-copy { max-width: 760px; }
.eyebrow {
  margin: 0 0 6px;
  color: #ffe0a3;
  font-size: 12px;
  font-weight: 900;
  letter-spacing: .08em;
  text-transform: uppercase;
}
h1, h2, h3, p { margin-top: 0; }
h1 {
  margin-bottom: 14px;
  font-size: clamp(34px, 5vw, 62px);
  line-height: 1.05;
  letter-spacing: 0;
}
h2 { margin-bottom: 8px; font-size: 28px; }
h3 { margin-bottom: 8px; font-size: 18px; }
.toolbar {
  display: grid;
  grid-template-columns: repeat(5, minmax(140px, 1fr));
  gap: 10px;
  overflow-x: auto;
  padding-bottom: 4px;
}
.toolbar input, .toolbar select {
  min-width: 0;
  border: 1px solid rgba(255,255,255,.38);
  border-radius: 8px;
  padding: 12px 14px;
  color: #fff;
  background: rgba(0,0,0,.25);
}
.toolbar input::placeholder { color: rgba(255,255,255,.78); }
.catalog-search {
  width: 100%;
  margin: 0 0 16px;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 12px 14px;
  color: var(--ink);
  background: rgba(255,255,255,.9);
}
.catalog-search::placeholder { color: var(--muted); }
.metrics {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 12px;
}
.metric, .card, .advisor-card, .source-item {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--panel);
  box-shadow: 0 8px 22px rgba(12,59,74,.07);
}
.metric { padding: 14px; color: var(--ink); }
.metric b { display: block; font-size: 28px; }
.metric span { color: var(--muted); font-size: 13px; }

.section {
  padding: 28px;
  border: 1px solid rgba(207,225,223,.84);
  border-radius: 8px;
  background: rgba(255,255,255,.58);
}
.section-head {
  display: flex;
  justify-content: space-between;
  align-items: end;
  gap: 16px;
  margin-bottom: 18px;
}
.status-pill {
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 6px 12px;
  color: var(--muted);
  background: #fff;
  font-weight: 800;
}
.resort-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
}
.card { overflow: hidden; }
.card-head {
  padding: 16px;
  color: #fff;
  background: linear-gradient(135deg, var(--teal), var(--deep));
}
.card-body { padding: 16px; }
.meta {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 10px 0;
}
.tag {
  border-radius: 999px;
  padding: 4px 8px;
  background: #e8f5f3;
  color: #315760;
  font-size: 12px;
  font-weight: 800;
}
.tag.warn { background: #fff1cc; color: #8a5a00; }
.facts {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 8px;
  margin-top: 12px;
}
.fact {
  padding: 9px;
  border-radius: 8px;
  background: #f5f8f6;
}
.fact b, .fact span { display: block; }
.fact span { color: var(--muted); font-size: 12px; }
.note { margin: 12px 0 0; color: var(--muted); font-size: 13px; }

.advisor-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 12px;
}
.advisor-card, .source-item { padding: 14px; }
.advisor-card p, .source-item p { color: var(--muted); margin-bottom: 0; }

.table-wrap {
  overflow: auto;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
}
.compare-table {
  width: 100%;
  min-width: 920px;
  border-collapse: collapse;
}
.compare-table th, .compare-table td {
  border-bottom: 1px solid var(--line);
  padding: 10px 12px;
  text-align: left;
  vertical-align: top;
}
.compare-table th { background: #f0f8f7; font-size: 13px; }

.map {
  width: 100%;
  height: 620px;
  border: 1px solid var(--line);
  border-radius: 8px;
  overflow: hidden;
  background: #dcefee;
}
.map-note { margin: 10px 0 0; color: var(--muted); font-size: 13px; }
.legend {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 8px;
}
.legend span { display: inline-flex; align-items: center; gap: 6px; font-size: 12px; color: var(--muted); }
.swatch { width: 12px; height: 12px; border-radius: 999px; }
.map-search {
  position: relative;
  z-index: 1100;
  max-width: 520px;
  margin: 0 0 12px;
}
.map-search-row {
  display: flex;
  gap: 8px;
}
.map-search input {
  flex: 1 1 auto;
  min-width: 0;
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 12px 14px;
  color: var(--ink);
  background: rgba(255,255,255,.96);
}
.map-search input::placeholder { color: var(--muted); }
.map-search button {
  flex: 0 0 auto;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 0 16px;
  color: var(--ink);
  background: rgba(255,255,255,.96);
  font-weight: 800;
  cursor: pointer;
}
.map-search button:hover,
.map-search button:focus { background: rgba(8,126,139,.08); }
.map-search-results {
  position: absolute;
  z-index: 1101;
  inset: calc(100% + 6px) 0 auto;
  max-height: 320px;
  overflow: auto;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: rgba(255,255,255,.98);
  box-shadow: var(--shadow);
}
.map-search-results:empty { display: none; }
.map-search-option {
  display: block;
  width: 100%;
  border: 0;
  border-bottom: 1px solid var(--line);
  padding: 10px 12px;
  color: var(--ink);
  background: #fff;
  text-align: left;
  cursor: pointer;
}
.map-search-option:last-child { border-bottom: 0; }
.map-search-option:hover,
.map-search-option:focus { background: rgba(8,126,139,.08); }
.map-search-option b,
.map-search-option span { display: block; }
.map-search-option span {
  margin-top: 2px;
  color: var(--muted);
  font-size: 12px;
}
.source-list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
}
.source-item a { color: var(--teal); font-weight: 800; overflow-wrap: anywhere; }

@media (max-width: 700px) {
  main { padding: 12px; }
  .hero, .section { padding: 20px; }
  .toolbar { grid-template-columns: repeat(5, 140px); }
  .metrics, .resort-grid, .advisor-grid, .source-list { grid-template-columns: 1fr; }
  .section-head { align-items: start; flex-direction: column; }
  .map-search { max-width: none; }
  .map { height: 520px; }
}

/* G9WIKI aviation-style visual unification */
:root {
  --bg: #f8fafc;
  --bg-2: #eef3f8;
  --panel: rgba(255,255,255,.92);
  --surface: rgba(255,255,255,.78);
  --surface-strong: rgba(255,255,255,.92);
  --surface-solid: #fff;
  --ink: #172033;
  --text: #172033;
  --muted: #64748b;
  --line: rgba(15,23,42,.10);
  --teal: #2563eb;
  --deep: #0f766e;
  --coral: #b45309;
  --sand: #fde68a;
  --gold: #b45309;
  --brand: #2563eb;
  --brand-2: #0f766e;
  --brand-dim: rgba(37,99,235,.11);
  --radius: 12px;
  --radius-lg: 16px;
  --shadow: 0 8px 32px rgba(15,23,42,.10);
  --shadow-lg: 0 18px 52px rgba(15,23,42,.16);
  --transition: .25s cubic-bezier(.4,0,.2,1);
}

body {
  font-family: "Plus Jakarta Sans", "Noto Sans SC", "Segoe UI", "Microsoft YaHei", Arial, sans-serif;
  background:
    radial-gradient(circle at 10% -8%, rgba(37,99,235,.13), transparent 30%),
    radial-gradient(circle at 96% 10%, rgba(14,165,233,.10), transparent 26%),
    linear-gradient(180deg,var(--bg) 0%,var(--bg-2) 100%);
}

.sidebar {
  width: 200px;
  padding: 24px 18px;
  background: var(--surface-strong);
  color: var(--ink);
  border-right: 1px solid var(--line);
  box-shadow: var(--shadow);
  backdrop-filter: blur(24px) saturate(180%);
  -webkit-backdrop-filter: blur(24px) saturate(180%);
}
.brand {
  padding: 10px 8px;
  border-radius: var(--radius);
  background: rgba(255,255,255,.54);
}
.brand:hover { background: rgba(255,255,255,.74); }
.brand-mark {
  width: 40px;
  height: 40px;
  border-radius: 10px;
  background: linear-gradient(135deg,var(--brand),#1d4ed8);
  color: #fff;
  box-shadow: var(--shadow);
}
.brand strong {
  font-family: "Noto Serif SC","PingFang SC","Hiragino Sans GB","Microsoft YaHei",serif;
  font-size: 15px;
  font-weight: 900;
  color: var(--ink);
}
.brand small { color: var(--muted); font-size: 10px; letter-spacing: .04em; }
.nav { gap: 2px; }
.nav a {
  color: var(--muted);
  padding: 11px 14px;
  border-radius: var(--radius);
  font-size: 13px;
  transition: all var(--transition);
}
.nav a.active,
.nav a:hover {
  background: rgba(37,99,235,.08);
  color: var(--ink);
  transform: translateX(2px);
}
.side-note {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: rgba(255,255,255,.48);
}
.side-note b { color: var(--brand); }
.side-note span { color: var(--muted); }

main { margin-left: 200px; padding: 28px min(4vw,52px) 64px; }
.hero,
.section { max-width: 1440px; }
.hero {
  min-height: 330px;
  border-radius: var(--radius-lg);
  padding: 34px;
  box-shadow: var(--shadow-lg);
  background:
    linear-gradient(135deg,rgba(15,23,42,.86),rgba(37,99,235,.52)),
    url("https://images.unsplash.com/photo-1573843981267-be1999ff37cd?auto=format&fit=crop&w=1800&q=80") center/cover;
}
.hero .eyebrow { color: #fde68a; letter-spacing: 0; }
.hero-copy p { color: rgba(255,255,255,.86); }
h1 { font-size: clamp(30px,4.6vw,58px); line-height: 1.04; }
h2 { color: var(--text); font-size: 22px; }

.section {
  border-radius: var(--radius-lg);
  border: 1px solid var(--line);
  background: var(--surface);
  box-shadow: var(--shadow);
  backdrop-filter: blur(20px) saturate(180%);
  -webkit-backdrop-filter: blur(20px) saturate(180%);
}
.metric,
.card,
.advisor-card,
.source-item,
.table-wrap,
.status-pill {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface-strong);
  box-shadow: var(--shadow);
}
.metric b { color: var(--brand); }
.metric span,
.advisor-card p,
.source-item p,
.note,
.map-note,
.legend span { color: var(--muted); }
.card-head { background: linear-gradient(135deg,var(--brand),var(--brand-2)); }
.tag {
  background: rgba(37,99,235,.10);
  color: var(--brand);
}
.fact { background: rgba(248,250,252,.82); }
.toolbar input,
.toolbar select,
select,
input,
button {
  border-radius: var(--radius);
}
.toolbar input:focus,
.toolbar select:focus,
select:focus,
input:focus {
  border-color: var(--brand);
  box-shadow: 0 0 0 3px var(--brand-dim);
}
.compare-table th { background: rgba(15,23,42,.04); color: var(--muted); }
.source-item a { color: var(--brand); }

body.dark-mode {
  --bg: #07111f;
  --bg-2: #0f172a;
  --panel: rgba(15, 23, 42, .92);
  --surface: rgba(15, 23, 42, .78);
  --surface-strong: rgba(15, 23, 42, .94);
  --surface-solid: #111827;
  --ink: #e5e7eb;
  --text: #e5e7eb;
  --muted: #9ca3af;
  --line: rgba(255, 255, 255, .14);
  --shadow: 0 16px 42px rgba(0, 0, 0, .34);
  color: var(--ink);
  background:
    radial-gradient(circle at 12% -8%, rgba(37,99,235,.22), transparent 30%),
    radial-gradient(circle at 96% 10%, rgba(20,184,166,.15), transparent 26%),
    linear-gradient(180deg,var(--bg) 0%,var(--bg-2) 100%);
}

body.dark-mode .sidebar,
body.dark-mode .hero,
body.dark-mode .section,
body.dark-mode .metric,
body.dark-mode .resort-card,
body.dark-mode .advisor-card,
body.dark-mode .source-card,
body.dark-mode .map,
body.dark-mode .compare-table,
body.dark-mode .table-wrap {
  background: var(--surface-strong);
  border-color: var(--line);
  color: var(--ink);
}

body.dark-mode .brand,
body.dark-mode .nav a.active,
body.dark-mode .nav a:hover,
body.dark-mode input,
body.dark-mode select,
body.dark-mode button,
body.dark-mode .status-pill,
body.dark-mode .tag,
body.dark-mode .toolbar,
body.dark-mode .fact {
  background-color: rgba(15, 23, 42, .9);
  border-color: var(--line);
  color: var(--ink);
}

body.dark-mode .brand small,
body.dark-mode .nav a,
body.dark-mode .section-summary,
body.dark-mode .card-meta,
body.dark-mode .muted,
body.dark-mode td {
  color: var(--muted);
}

body.dark-mode h1,
body.dark-mode h2,
body.dark-mode h3,
body.dark-mode th,
body.dark-mode .eyebrow {
  color: var(--ink);
}

body.dark-mode .leaflet-tile {
  filter: brightness(.74) contrast(1.08) saturate(.82);
}