/* ============================================================
   jctuijian.com — 全站设计系统
   ============================================================ */

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800&family=Outfit:wght@400;600;700;800&display=swap');

/* ── CSS 变量 ─────────────────────────────────────────────── */
:root {
  --font-body: 'Inter', 'PingFang SC', 'Microsoft YaHei', sans-serif;
  --font-display: 'Outfit', 'PingFang SC', sans-serif;

  --color-bg:        #F8FAFC;
  --color-surface:   #FFFFFF;
  --color-border:    #E2E8F0;
  --color-border-hover: #CBD5E1;

  --color-text-primary:   #0F172A;
  --color-text-secondary: #475569;
  --color-text-muted:     #94A3B8;

  --color-brand:      #0EA5E9;
  --color-brand-dark: #0284C7;
  --color-brand-bg:   #F0F9FF;

  --color-score-high:   #10B981;
  --color-score-mid:    #F59E0B;
  --color-score-low:    #EF4444;

  --color-risk-bg:    #FFF5F5;
  --color-risk-border:#FED7D7;

  --radius-sm:  8px;
  --radius-md:  12px;
  --radius-lg:  16px;
  --radius-xl:  20px;

  --shadow-sm:  0 1px 3px rgba(0,0,0,.06), 0 1px 2px rgba(0,0,0,.04);
  --shadow-md:  0 4px 16px rgba(0,0,0,.08), 0 2px 6px rgba(0,0,0,.05);
  --shadow-lg:  0 8px 30px rgba(0,0,0,.10), 0 4px 12px rgba(0,0,0,.06);
  --shadow-hover: 0 12px 40px rgba(14,165,233,.15), 0 4px 16px rgba(0,0,0,.08);

  --transition: .18s cubic-bezier(.4,0,.2,1);
}

/* ── Reset & Base ─────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; font-size: 16px; }
body {
  font-family: var(--font-body);
  background: var(--color-bg);
  color: var(--color-text-primary);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}
a { text-decoration: none; color: inherit; }
img { max-width: 100%; }

/* ── Layout ───────────────────────────────────────────────── */
.container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }

/* ── Navbar ───────────────────────────────────────────────── */
.navbar {
  position: sticky; top: 0; z-index: 100;
  background: rgba(255,255,255,.88);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--color-border);
  box-shadow: 0 1px 0 rgba(0,0,0,.04);
}
.navbar-inner {
  display: flex; align-items: center; justify-content: space-between;
  height: 60px; gap: 32px;
}
.navbar-logo {
  display: flex; align-items: center; gap: 10px;
  font-family: var(--font-display);
  font-size: 1.1rem; font-weight: 700;
  color: var(--color-text-primary);
  flex-shrink: 0;
}
.navbar-logo .logo-icon {
  width: 34px; height: 34px;
  background: linear-gradient(135deg, #0EA5E9 0%, #6366F1 100%);
  border-radius: 9px;
  display: flex; align-items: center; justify-content: center;
  font-size: 16px; color: #fff;
  box-shadow: 0 2px 8px rgba(14,165,233,.35);
}
.navbar-nav {
  display: flex; align-items: center; gap: 4px; flex: 1;
}
.navbar-nav a {
  padding: 6px 14px; border-radius: var(--radius-sm);
  font-size: .875rem; font-weight: 500;
  color: var(--color-text-secondary);
  transition: background var(--transition), color var(--transition);
  white-space: nowrap;
  position: relative;
}
.navbar-nav a:hover { background: var(--color-brand-bg); color: var(--color-brand); }
.navbar-nav a.active { background: var(--color-brand-bg); color: var(--color-brand); font-weight: 600; }
.navbar-nav .badge {
  display: inline-block;
  background: #EF4444; color: #fff;
  font-size: 10px; font-weight: 700;
  padding: 1px 5px; border-radius: 20px;
  margin-left: 4px; vertical-align: middle;
  line-height: 1.4;
}
.navbar-actions { display: flex; align-items: center; gap: 10px; flex-shrink: 0; }
.btn-ghost {
  padding: 7px 16px; border-radius: var(--radius-sm);
  font-size: .875rem; font-weight: 500;
  color: var(--color-text-secondary); background: transparent;
  border: 1px solid var(--color-border);
  cursor: pointer; transition: all var(--transition);
}
.btn-ghost:hover { border-color: var(--color-brand); color: var(--color-brand); }
.btn-primary {
  padding: 7px 18px; border-radius: var(--radius-sm);
  font-size: .875rem; font-weight: 600;
  background: var(--color-text-primary); color: #fff;
  border: none; cursor: pointer;
  transition: all var(--transition);
  display: flex; align-items: center; gap: 6px;
  white-space: nowrap;
}
.btn-primary:hover { background: #334155; transform: translateY(-1px); box-shadow: var(--shadow-md); }

/* ── Hero ─────────────────────────────────────────────────── */
.hero {
  padding: 56px 0 40px;
  text-align: center;
  background: linear-gradient(180deg, #EFF6FF 0%, var(--color-bg) 100%);
}
.hero h1 {
  font-family: var(--font-display);
  font-size: clamp(1.8rem, 4vw, 2.8rem);
  font-weight: 800; line-height: 1.2;
  color: var(--color-text-primary);
  letter-spacing: -.02em; margin-bottom: 16px;
}
.hero h1 span { color: var(--color-brand); }
.hero-subtitle {
  max-width: 640px; margin: 0 auto 32px;
  color: var(--color-text-secondary); font-size: 1rem; line-height: 1.7;
}
.hero-stats {
  display: inline-flex; gap: 32px; flex-wrap: wrap;
  align-items: center; justify-content: center;
}
.hero-stat {
  display: flex; align-items: center; gap: 8px;
  font-size: .875rem; color: var(--color-text-secondary);
}
.hero-stat .dot {
  width: 8px; height: 8px; border-radius: 50%;
  background: #10B981; animation: pulse 2s infinite;
}
@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50%       { opacity: .6; transform: scale(1.3); }
}
.hero-stat strong { color: var(--color-text-primary); font-weight: 700; }

/* ── Category Tabs ────────────────────────────────────────── */
.category-tabs {
  padding: 8px 0 0;
  border-bottom: 1px solid var(--color-border);
  background: var(--color-surface);
  position: sticky; top: 60px; z-index: 90;
}
.tabs-inner {
  display: flex; gap: 0; overflow-x: auto;
  -ms-overflow-style: none; scrollbar-width: none;
}
.tabs-inner::-webkit-scrollbar { display: none; }
.tab-btn {
  flex-shrink: 0;
  padding: 12px 22px 11px;
  border: none; background: transparent;
  font-family: var(--font-body); font-size: .9rem; font-weight: 500;
  color: var(--color-text-secondary); cursor: pointer;
  border-bottom: 2px solid transparent; margin-bottom: -1px;
  transition: all var(--transition); white-space: nowrap;
}
.tab-btn:hover { color: var(--color-brand); }
.tab-btn.active {
  color: var(--color-brand); font-weight: 600;
  border-bottom-color: var(--color-brand);
}
.tab-btn .tab-icon { margin-right: 6px; font-size: 1em; }

/* ── Section Header ───────────────────────────────────────── */
.section { padding: 36px 0; }
.section-header {
  display: flex; align-items: flex-end; justify-content: space-between;
  margin-bottom: 24px;
}
.section-title-group { display: flex; align-items: center; gap: 14px; }
.section-icon {
  width: 40px; height: 40px; border-radius: var(--radius-sm);
  background: linear-gradient(135deg, #0EA5E9, #6366F1);
  display: flex; align-items: center; justify-content: center;
  font-size: 18px; flex-shrink: 0;
  box-shadow: 0 4px 12px rgba(14,165,233,.3);
}
.section-title {
  font-family: var(--font-display); font-size: 1.35rem;
  font-weight: 700; color: var(--color-text-primary);
}
.section-subtitle {
  font-size: .75rem; font-weight: 500;
  color: var(--color-text-muted); letter-spacing: .06em;
  text-transform: uppercase; margin-top: 2px;
}
.section-meta {
  display: flex; align-items: center; gap: 6px;
  font-size: .8rem; color: var(--color-text-muted);
}
.section-meta .live-dot {
  width: 7px; height: 7px; border-radius: 50%;
  background: #10B981; flex-shrink: 0;
  animation: pulse 2s infinite;
}

/* ── Airport Card Grid ────────────────────────────────────── */
.cards-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
}
@media (max-width: 900px) { .cards-grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 560px) { .cards-grid { grid-template-columns: 1fr; } }

/* ── Airport Card ─────────────────────────────────────────── */
.airport-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 22px;
  transition: all var(--transition);
  cursor: default;
  position: relative;
  overflow: hidden;
}
.airport-card::before {
  content: '';
  position: absolute; top: 0; left: 0; right: 0; height: 3px;
  background: linear-gradient(90deg, #0EA5E9, #6366F1);
  opacity: 0; transition: opacity var(--transition);
}
.airport-card:hover {
  border-color: var(--color-brand);
  box-shadow: var(--shadow-hover);
  transform: translateY(-3px);
}
.airport-card:hover::before { opacity: 1; }
.airport-card.risk-card {
  background: var(--color-risk-bg);
  border-color: var(--color-risk-border);
}
.airport-card.risk-card::before { background: linear-gradient(90deg, #EF4444, #F97316); }

/* Card Header */
.card-header { display: flex; align-items: flex-start; justify-content: space-between; margin-bottom: 14px; }
.card-name { font-weight: 700; font-size: 1rem; color: var(--color-text-primary); }
.card-score-wrap { text-align: right; flex-shrink: 0; }
.card-score-label { font-size: .68rem; color: var(--color-text-muted); font-weight: 500; letter-spacing: .04em; display: block; }
.card-score {
  font-family: var(--font-display);
  font-size: 1.6rem; font-weight: 800; line-height: 1;
}
.card-score.high  { color: var(--color-score-high); }
.card-score.mid   { color: var(--color-score-mid); }
.card-score.low   { color: var(--color-score-low); }
.card-delta {
  font-size: .75rem; font-weight: 600;
  color: #10B981; margin-top: 2px; display: block;
}
.card-delta.down { color: var(--color-score-low); }

/* Tags */
.card-tags { display: flex; flex-wrap: wrap; gap: 6px; margin-bottom: 16px; }
.card-tag {
  display: inline-flex; align-items: center;
  padding: 3px 9px; border-radius: 20px;
  font-size: .72rem; font-weight: 600;
  border-width: 1px; border-style: solid;
  white-space: nowrap;
}

/* Meta row */
.card-meta {
  display: grid; grid-template-columns: 1fr 1fr;
  gap: 10px; margin-bottom: 14px;
  padding: 12px; background: var(--color-bg);
  border-radius: var(--radius-sm);
}
.meta-item .meta-label { font-size: .7rem; color: var(--color-text-muted); font-weight: 500; margin-bottom: 2px; }
.meta-item .meta-value { font-size: .875rem; font-weight: 700; color: var(--color-text-primary); }

/* Conclusion */
.card-conclusion {
  font-size: .8rem; line-height: 1.6;
  color: var(--color-text-secondary);
  border-left: 3px solid var(--color-border);
  padding-left: 10px; margin-bottom: 18px;
  min-height: 48px;
}
.card-conclusion strong { color: var(--color-brand-dark); }

/* Card Actions */
.card-actions { display: flex; gap: 10px; }
.btn-report {
  flex: 1; padding: 9px 14px; border-radius: var(--radius-sm);
  background: var(--color-text-primary); color: #fff;
  font-size: .83rem; font-weight: 600;
  border: none; cursor: pointer;
  transition: all var(--transition);
  text-align: center; display: flex; align-items: center; justify-content: center; gap: 4px;
}
.btn-report:hover { background: #1E293B; transform: translateY(-1px); }
.btn-official {
  flex: 0 0 auto; padding: 9px 18px; border-radius: var(--radius-sm);
  background: var(--color-surface); color: var(--color-text-primary);
  font-size: .83rem; font-weight: 600;
  border: 1px solid var(--color-border);
  cursor: pointer; transition: all var(--transition);
  display: flex; align-items: center; gap: 5px;
}
.btn-official:hover { border-color: var(--color-brand); color: var(--color-brand); }
.btn-official-icon { font-size: .85em; opacity: .7; }

/* Risk Card Overrides */
.risk-card .card-conclusion { border-left-color: #EF4444; }
.risk-card .btn-report { background: #EF4444; }
.risk-card .btn-report:hover { background: #DC2626; }

/* ── Empty State ──────────────────────────────────────────── */
.empty-state {
  text-align: center; padding: 60px 24px;
  color: var(--color-text-muted); font-size: .95rem;
}
.empty-state .icon { font-size: 2.5rem; margin-bottom: 12px; display: block; }

/* ── Footer ───────────────────────────────────────────────── */
.footer {
  margin-top: 60px;
  border-top: 1px solid var(--color-border);
  background: var(--color-surface);
  padding: 40px 0 28px;
}
.footer-inner {
  display: flex; justify-content: space-between; gap: 40px; flex-wrap: wrap;
}
.footer-brand .logo-row { display: flex; align-items: center; gap: 10px; margin-bottom: 10px; }
.footer-brand .logo-text { font-family: var(--font-display); font-weight: 700; font-size: .95rem; }
.footer-brand p { font-size: .8rem; color: var(--color-text-muted); max-width: 260px; line-height: 1.6; }
.footer-links h4 { font-size: .8rem; font-weight: 700; color: var(--color-text-secondary); margin-bottom: 12px; letter-spacing: .06em; text-transform: uppercase; }
.footer-links ul { list-style: none; display: flex; flex-direction: column; gap: 8px; }
.footer-links a { font-size: .82rem; color: var(--color-text-muted); transition: color var(--transition); }
.footer-links a:hover { color: var(--color-brand); }
.footer-bottom {
  margin-top: 32px; padding-top: 20px;
  border-top: 1px solid var(--color-border);
  display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 8px;
  font-size: .78rem; color: var(--color-text-muted);
}
.footer-bottom a { color: var(--color-text-muted); }
.footer-bottom a:hover { color: var(--color-brand); }

/* ── Redirect Page ────────────────────────────────────────── */
.redirect-page {
  min-height: 100vh;
  display: flex; align-items: center; justify-content: center;
  background: var(--color-bg);
}
.redirect-box {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  padding: 48px 40px; text-align: center;
  max-width: 400px; width: 100%;
  box-shadow: var(--shadow-lg);
}
.redirect-spinner {
  width: 48px; height: 48px; border-radius: 50%;
  border: 3px solid var(--color-border);
  border-top-color: var(--color-brand);
  animation: spin .8s linear infinite;
  margin: 0 auto 20px;
}
@keyframes spin { to { transform: rotate(360deg); } }
.redirect-title { font-family: var(--font-display); font-size: 1.2rem; font-weight: 700; margin-bottom: 8px; }
.redirect-desc { font-size: .88rem; color: var(--color-text-muted); }
.redirect-cta { margin-top: 24px; }
.redirect-cta a {
  display: inline-block; padding: 10px 24px;
  background: var(--color-brand); color: #fff;
  border-radius: var(--radius-sm); font-weight: 600; font-size: .875rem;
  transition: background var(--transition);
}
.redirect-cta a:hover { background: var(--color-brand-dark); }

/* ── Animations ───────────────────────────────────────────── */
@keyframes fadeUp {
  from { opacity: 0; transform: translateY(16px); }
  to   { opacity: 1; transform: translateY(0); }
}
.airport-card { animation: fadeUp .35s ease both; }
.airport-card:nth-child(1)  { animation-delay: .03s; }
.airport-card:nth-child(2)  { animation-delay: .07s; }
.airport-card:nth-child(3)  { animation-delay: .11s; }
.airport-card:nth-child(4)  { animation-delay: .15s; }
.airport-card:nth-child(5)  { animation-delay: .19s; }
.airport-card:nth-child(6)  { animation-delay: .23s; }

/* ── Utilities ────────────────────────────────────────────── */
.sr-only { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0,0,0,0); }

/* ── 动态模块专属样式 (优惠、预警、测评等) ─────────────────── */
.promo-list {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
}
@media (max-width: 768px) { .promo-list { grid-template-columns: 1fr; } }

.promo-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 24px;
  position: relative;
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: all var(--transition);
}
.promo-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
  border-color: var(--color-brand);
}
.promo-badge {
  position: absolute; top: 12px; right: 12px;
  background: #FEF3C7; color: #D97706;
  font-size: 0.72rem; font-weight: 700;
  padding: 3px 9px; border-radius: 20px;
}
.promo-airport-name { font-size: 1.15rem; font-weight: 700; color: var(--color-text-primary); margin-bottom: 6px; }
.promo-title { font-size: 1rem; font-weight: 600; color: var(--color-brand-dark); margin-bottom: 12px; }
.promo-code-wrap {
  display: flex; align-items: center; justify-content: space-between;
  background: var(--color-bg); border: 1px dashed var(--color-border);
  padding: 10px 16px; border-radius: var(--radius-sm); margin-bottom: 16px;
}
.promo-code { font-family: monospace; font-size: 1.05rem; font-weight: 700; color: #1E293B; letter-spacing: 0.05em; }
.promo-copy-btn {
  background: var(--color-brand); color: #fff; border: none;
  padding: 4px 10px; border-radius: 4px; font-size: 0.75rem; font-weight: 600;
  cursor: pointer; transition: background var(--transition);
}
.promo-copy-btn:hover { background: var(--color-brand-dark); }
.promo-desc { font-size: 0.8rem; color: var(--color-text-secondary); line-height: 1.5; }

/* 跑路预警专属样式 */
.warning-log-list {
  display: flex; flex-direction: column; gap: 14px;
}
.warning-log-card {
  background: #FFF5F5; border: 1px solid #FED7D7;
  border-radius: var(--radius-md); padding: 18px 22px;
  display: flex; align-items: center; justify-content: space-between; gap: 20px;
}
@media (max-width: 640px) {
  .warning-log-card { flex-direction: column; align-items: flex-start; gap: 12px; }
}
.warning-log-left { display: flex; align-items: center; gap: 16px; }
.warning-status-badge {
  background: #EF4444; color: #fff; font-size: 0.75rem; font-weight: 700;
  padding: 4px 10px; border-radius: 4px; white-space: nowrap;
}
.warning-airport-info h4 { font-size: 1.05rem; font-weight: 700; color: #9B1C1C; }
.warning-airport-info p { font-size: 0.8rem; color: #B91C1C; margin-top: 2px; }
.warning-log-right { text-align: right; font-size: 0.8rem; color: #9B1C1C; }
.warning-time { font-weight: 600; }
.warning-detail-btn {
  margin-top: 6px; display: inline-block; color: #7F1D1D; text-decoration: underline; font-weight: 600;
}

/* 测评方法专属样式 */
.method-container {
  background: var(--color-surface); border: 1px solid var(--color-border);
  border-radius: var(--radius-lg); padding: 32px; box-shadow: var(--shadow-sm);
}
.method-grid {
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; margin-top: 24px;
}
@media (max-width: 768px) { .method-grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 480px) { .method-grid { grid-template-columns: 1fr; } }

.method-step {
  text-align: center; padding: 20px 16px; background: var(--color-bg);
  border-radius: var(--radius-md); border: 1px solid var(--color-border);
}
.method-step-icon { font-size: 2.2rem; margin-bottom: 12px; display: block; }
.method-step h4 { font-size: 0.95rem; font-weight: 700; color: var(--color-text-primary); margin-bottom: 6px; }
.method-step p { font-size: 0.78rem; color: var(--color-text-secondary); line-height: 1.5; }
.method-intro-text { font-size: 0.9rem; color: var(--color-text-secondary); line-height: 1.7; }
.method-table {
  width: 100%; border-collapse: collapse; margin-top: 24px; font-size: 0.85rem;
}
.method-table th, .method-table td {
  padding: 12px; border: 1px solid var(--color-border); text-align: left;
}
.method-table th { background: var(--color-bg); font-weight: 700; }