/* ==========================================================================
   机场Review (jichangreview.cfd) - 全站核心样式表
   纯静态知识库架构 · Geekblog风格 · 移动端320px深度适配
   ========================================================================== */

:root {
  --primary: #2563eb;
  --primary-hover: #1d4ed8;
  --primary-light: #eff6ff;
  --accent: #0284c7;
  --text-main: #0f172a;
  --text-muted: #64748b;
  --text-light: #94a3b8;
  --bg-body: #ffffff;
  --bg-alt: #f8fafc;
  --bg-card: #ffffff;
  --border-color: #e2e8f0;
  --border-light: #f1f5f9;
  --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
  --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.08), 0 2px 4px -2px rgb(0 0 0 / 0.06);
  --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.08), 0 4px 6px -4px rgb(0 0 0 / 0.04);
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 14px;
  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "Noto Sans", sans-serif, "Apple Color Emoji", "Segoe UI Emoji";
  --font-mono: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;
  --container-max: 1240px;
}

*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-size: 16px;
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font-sans);
  color: var(--text-main);
  background-color: var(--bg-body);
  line-height: 1.65;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  overflow-x: hidden;
  width: 100%;
}

a {
  color: var(--primary);
  text-decoration: none;
  transition: color 0.2s ease;
}

a:hover {
  color: var(--primary-hover);
}

img, svg {
  max-width: 100%;
  height: auto;
  vertical-align: middle;
}

button, input {
  font: inherit;
}

.container {
  width: 100%;
  max-width: var(--container-max);
  margin-left: auto;
  margin-right: auto;
  padding-left: 20px;
  padding-right: 20px;
}

.bg-alt {
  background-color: var(--bg-alt);
}

.text-center {
  text-align: center;
}

.mt-6 {
  margin-top: 2rem;
}

/* ==========================================================================
   Header (Desktop & Mobile)
   ========================================================================== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background-color: rgba(255, 255, 255, 0.94);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border-color);
  height: 64px;
}

.header-inner {
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  max-width: 1360px;
}

.header-logo {
  display: flex;
  align-items: center;
  gap: 8px;
  text-decoration: none;
  flex-shrink: 0;
  white-space: nowrap;
}

.logo-badge {
  background: linear-gradient(135deg, #2563eb, #1d4ed8);
  color: #fff;
  font-size: 0.72rem;
  font-weight: 800;
  padding: 3px 7px;
  border-radius: var(--radius-sm);
  letter-spacing: 0.5px;
}

.logo-text {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--text-main);
  letter-spacing: -0.3px;
  white-space: nowrap;
}

.header-nav {
  flex: 1;
  display: flex;
  justify-content: center;
  min-width: 0;
}

.nav-list {
  display: flex;
  align-items: center;
  gap: clamp(8px, 1.3vw, 18px);
  list-style: none;
  flex-wrap: nowrap;
  white-space: nowrap;
}

.nav-list li {
  flex-shrink: 0;
  white-space: nowrap;
}

.nav-list a {
  font-size: clamp(0.85rem, 0.92vw, 0.93rem);
  font-weight: 500;
  color: #475569;
  padding: 8px 3px;
  position: relative;
  white-space: nowrap !important;
  word-break: keep-all !important;
  display: inline-block;
  transition: color 0.15s ease;
}

.nav-list a:hover,
.nav-list a.active {
  color: var(--primary);
}

.nav-list a.active::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 2px;
  background-color: var(--primary);
  border-radius: 2px;
}

.header-right {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
  white-space: nowrap;
}

.search-input-wrapper {
  display: flex;
  align-items: center;
  gap: 8px;
  background-color: var(--bg-alt);
  border: 1px solid var(--border-color);
  padding: 7px 12px;
  border-radius: 20px;
  cursor: pointer;
  width: clamp(150px, 13vw, 210px);
  min-width: 140px;
  transition: all 0.2s ease;
  white-space: nowrap;
}

.search-input-wrapper:hover {
  border-color: var(--primary);
  background-color: #fff;
  box-shadow: 0 0 0 2px rgba(37, 99, 235, 0.1);
}

.search-icon {
  color: var(--text-muted);
  flex-shrink: 0;
}

.search-placeholder {
  font-size: 0.82rem;
  color: var(--text-muted);
  flex: 1;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.search-kbd {
  font-size: 0.7rem;
  font-family: var(--font-mono);
  background: #e2e8f0;
  color: #475569;
  padding: 2px 5px;
  border-radius: 4px;
  flex-shrink: 0;
}

.btn-header-tg {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background-color: #229ed9;
  color: #fff !important;
  font-size: 0.86rem;
  font-weight: 600;
  padding: 8px 13px;
  border-radius: 20px;
  min-height: 40px;
  white-space: nowrap;
  flex-shrink: 0;
  transition: background-color 0.2s ease, transform 0.1s ease;
}

.btn-header-tg:hover {
  background-color: #1a88be;
  transform: translateY(-1px);
}

.mobile-only {
  display: none;
}

.desktop-only {
  display: flex;
}

.header-mobile-controls {
  display: none;
  align-items: center;
  gap: 8px;
}

.mobile-search-btn,
.mobile-menu-btn {
  background: none;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  padding: 7px;
  min-width: 44px;
  min-height: 44px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  color: var(--text-main);
}

/* Mobile Drawer */
.mobile-drawer {
  position: fixed;
  top: 0;
  right: -100%;
  width: 280px;
  max-width: 85vw;
  height: 100vh;
  background-color: #fff;
  box-shadow: -4px 0 20px rgba(0, 0, 0, 0.15);
  z-index: 200;
  transition: right 0.3s cubic-bezier(0.16, 1, 0.3, 1);
  display: flex;
  flex-direction: column;
}

.mobile-drawer.open {
  right: 0;
}

.drawer-header {
  padding: 18px 20px;
  border-bottom: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.drawer-title {
  font-weight: 700;
  font-size: 1.1rem;
}

.drawer-close {
  background: none;
  border: none;
  font-size: 1.8rem;
  line-height: 1;
  color: var(--text-muted);
  cursor: pointer;
  padding: 4px;
}

.drawer-nav {
  padding: 16px 20px;
  overflow-y: auto;
  flex: 1;
}

.drawer-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.drawer-list a {
  display: block;
  font-size: 1rem;
  font-weight: 500;
  color: var(--text-main);
  padding: 10px 8px;
  border-radius: var(--radius-sm);
}

.drawer-list a:hover {
  background-color: var(--bg-alt);
  color: var(--primary);
}

.drawer-tg-item {
  margin-top: 16px;
  border-top: 1px solid var(--border-color);
  padding-top: 16px;
}

.btn-drawer-tg {
  display: flex !important;
  align-items: center;
  justify-content: center;
  gap: 8px;
  background-color: #229ed9 !important;
  color: #fff !important;
  font-weight: 600 !important;
  min-height: 44px;
}

/* ==========================================================================
   Hero Section
   ========================================================================== */
.home-hero-section {
  padding: 60px 0 48px;
  background: radial-gradient(ellipse at 50% 0%, #2e3646 0%, #222936 60%, #19202c 100%);
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  text-align: center;
  color: #f8fafc;
}

.hero-container {
  max-width: 1100px;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background-color: rgba(37, 99, 235, 0.2);
  border: 1px solid rgba(96, 165, 250, 0.4);
  color: #93c5fd;
  font-size: 0.82rem;
  font-weight: 600;
  padding: 6px 14px;
  border-radius: 20px;
  margin-bottom: 20px;
}

.badge-dot {
  width: 8px;
  height: 8px;
  background-color: #60a5fa;
  border-radius: 50%;
  box-shadow: 0 0 8px rgba(96, 165, 250, 0.8);
  animation: pulse 2s infinite;
}

@keyframes pulse {
  0% { transform: scale(0.95); opacity: 0.8; }
  50% { transform: scale(1.15); opacity: 1; }
  100% { transform: scale(0.95); opacity: 0.8; }
}

.hero-h1 {
  font-size: clamp(1.4rem, 2.3vw, 1.85rem);
  font-weight: 800;
  line-height: 1.4;
  color: #ffffff;
  letter-spacing: -0.3px;
  margin-bottom: 16px;
  text-wrap: balance;
}

.hero-title {
  font-size: 1.35rem;
  font-weight: 700;
  color: #cbd5e1;
  margin-bottom: 14px;
}

.hero-subtitle {
  font-size: 1.05rem;
  color: #94a3b8;
  line-height: 1.7;
  margin-bottom: 18px;
}

.hero-nlp-text {
  font-size: 0.92rem;
  color: #cbd5e1;
  line-height: 1.65;
  margin-bottom: 28px;
  background: rgba(255, 255, 255, 0.05);
  padding: 14px 20px;
  border-radius: var(--radius-md);
  border: 1px solid rgba(255, 255, 255, 0.1);
  backdrop-filter: blur(4px);
}

.hero-nlp-text strong {
  color: #60a5fa;
  font-weight: 600;
}

.hero-cta-group {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: 12px;
  margin-bottom: 36px;
}

.btn-hero-primary,
.btn-hero-secondary,
.btn-hero-outline {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 10px 20px;
  border-radius: var(--radius-md);
  font-size: 0.94rem;
  font-weight: 600;
  transition: all 0.2s ease;
  text-decoration: none;
}

.btn-hero-primary {
  background: linear-gradient(135deg, #2563eb 0%, #1d4ed8 100%);
  color: #ffffff !important;
  box-shadow: 0 4px 14px rgba(37, 99, 235, 0.4);
}

.btn-hero-primary:hover {
  background: linear-gradient(135deg, #3b82f6 0%, #2563eb 100%);
  transform: translateY(-1px);
}

.btn-hero-secondary {
  background-color: #ffffff;
  color: #0f172a !important;
  font-weight: 700;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.25);
}

.btn-hero-secondary:hover {
  background-color: #f1f5f9;
  transform: translateY(-1px);
}

.btn-hero-outline {
  background-color: rgba(255, 255, 255, 0.08);
  color: #f8fafc;
  border: 1px solid rgba(255, 255, 255, 0.2);
  backdrop-filter: blur(4px);
}

.btn-hero-outline:hover {
  border-color: #60a5fa;
  color: #60a5fa;
  background-color: rgba(255, 255, 255, 0.16);
}

.hero-stats-bar {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  padding-top: 24px;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.stat-item {
  display: flex;
  flex-direction: column;
  align-items: center;
}

.stat-number {
  font-size: 1.5rem;
  font-weight: 800;
  color: #38bdf8;
  letter-spacing: -0.5px;
}

.stat-label {
  font-size: 0.82rem;
  color: #94a3b8;
}

/* ==========================================================================
   Home Sections Common
   ========================================================================== */
.home-section {
  padding: 56px 0;
}

.section-title-wrap {
  margin-bottom: 36px;
}

.section-main-title {
  font-size: 1.75rem;
  font-weight: 800;
  color: #0f172a;
  letter-spacing: -0.3px;
  margin-bottom: 8px;
}

.section-sub-title {
  font-size: 0.98rem;
  color: var(--text-muted);
  max-width: 720px;
  margin-left: auto;
  margin-right: auto;
}

.section-header-flex {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 28px;
}

.btn-more-link {
  font-size: 0.92rem;
  font-weight: 600;
  color: var(--primary);
  white-space: nowrap;
}

/* ==========================================================================
   02 Beginner Decision (4 Cards)
   ========================================================================== */
.decision-grid-4 {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}

.decision-card {
  background: #ffffff;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 24px 20px;
  position: relative;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.decision-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
  border-color: #cbd5e1;
}

.decision-step-num {
  font-size: 1.6rem;
  font-weight: 900;
  color: #e2e8f0;
  line-height: 1;
  margin-bottom: 12px;
}

.decision-title {
  font-size: 1.15rem;
  font-weight: 700;
  color: #0f172a;
  margin-bottom: 10px;
}

.decision-desc {
  font-size: 0.88rem;
  color: #475569;
  line-height: 1.65;
}

/* ==========================================================================
   03 Four Featured Cards
   ========================================================================== */
.four-featured-section {
  margin-top: 12px;
}

.featured-header-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: #fef3c7;
  color: #92400e;
  font-size: 0.85rem;
  font-weight: 600;
  padding: 6px 14px;
  border-radius: 20px;
  margin-bottom: 24px;
}

.featured-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}

.featured-card {
  background: #ffffff;
  border: 2px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 22px 18px;
  display: flex;
  flex-direction: column;
  position: relative;
  transition: all 0.2s ease;
}

.featured-card:hover {
  border-color: var(--primary);
  box-shadow: var(--shadow-lg);
  transform: translateY(-3px);
}

.featured-rank-1 {
  border-color: #93c5fd;
  background: linear-gradient(180deg, #f8fbff 0%, #ffffff 40%);
}

.card-top-bar {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  margin-bottom: 14px;
}

.card-index-tag {
  background: #0f172a;
  color: #fff;
  font-size: 0.75rem;
  font-weight: 800;
  padding: 2px 6px;
  border-radius: 4px;
}

.card-airport-name {
  font-size: 1.15rem;
  font-weight: 800;
  color: #0f172a;
  line-height: 1.3;
}

.card-positioning {
  display: block;
  font-size: 0.78rem;
  color: var(--primary);
  font-weight: 600;
  margin-top: 2px;
}

.card-pricing-badge {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  background: #f1f5f9;
  padding: 10px 14px;
  border-radius: var(--radius-md);
  margin-bottom: 16px;
}

.price-val {
  font-size: 1.35rem;
  font-weight: 800;
  color: #dc2626;
}

.traffic-val {
  font-size: 0.86rem;
  font-weight: 700;
  color: #334155;
}

.card-specs-list {
  display: flex;
  flex-direction: column;
  gap: 8px;
  font-size: 0.84rem;
  line-height: 1.5;
  margin-bottom: 16px;
  flex: 1;
}

.spec-row {
  display: flex;
  flex-direction: column;
}

.spec-label {
  color: var(--text-muted);
  font-size: 0.76rem;
}

.spec-value {
  color: #1e293b;
}

.text-muted-note {
  color: #64748b;
  font-size: 0.8rem;
}

.featured-coupon-box {
  background: #fffbeb;
  border: 1px dashed #f59e0b;
  border-radius: var(--radius-sm);
  padding: 8px 10px;
  margin-bottom: 16px;
}

.coupon-display {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 6px;
}

.coupon-title {
  font-size: 0.76rem;
  color: #92400e;
}

.coupon-code {
  font-family: var(--font-mono);
  font-size: 0.88rem;
  font-weight: 700;
  color: #b45309;
}

.btn-copy-mini {
  background: #fde68a;
  border: 1px solid #f59e0b;
  color: #78350f;
  font-size: 0.72rem;
  font-weight: 700;
  padding: 2px 7px;
  border-radius: 4px;
  cursor: pointer;
  transition: all 0.15s ease;
}

.btn-copy-mini:hover {
  background: #fcd34d;
}

.btn-copy-mini.copied {
  background: #10b981;
  color: #fff;
  border-color: #10b981;
}

.coupon-notice {
  font-size: 0.7rem;
  color: #a16207;
  margin-top: 4px;
  line-height: 1.3;
}

.card-cta-row {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.btn-primary-cta {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  background-color: var(--primary);
  color: #fff !important;
  font-size: 0.92rem;
  font-weight: 700;
  min-height: 44px;
  padding: 8px 14px;
  border-radius: var(--radius-md);
  text-decoration: none;
  transition: background-color 0.15s ease, transform 0.1s ease;
}

.btn-primary-cta:hover {
  background-color: var(--primary-hover);
  transform: translateY(-1px);
}

.btn-secondary-link {
  text-align: center;
  font-size: 0.82rem;
  color: var(--text-muted);
  padding: 4px 0;
}

.btn-secondary-link:hover {
  color: var(--primary);
}

.featured-disclaimer {
  margin-top: 24px;
  padding: 12px 18px;
  background: #ffffff;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  font-size: 0.8rem;
  color: var(--text-muted);
  line-height: 1.6;
}

/* ==========================================================================
   04 Latest Articles Grid
   ========================================================================== */
.articles-latest-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

.article-summary-card {
  background: #ffffff;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 22px;
  display: flex;
  flex-direction: column;
  transition: all 0.2s ease;
}

.article-summary-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
  border-color: #cbd5e1;
}

.article-tag {
  align-self: flex-start;
  background: var(--bg-alt);
  color: var(--primary);
  font-size: 0.75rem;
  font-weight: 700;
  padding: 2px 8px;
  border-radius: 4px;
  margin-bottom: 10px;
}

.article-title {
  font-size: 1.12rem;
  font-weight: 700;
  line-height: 1.4;
  margin-bottom: 10px;
}

.article-title a {
  color: #0f172a;
}

.article-title a:hover {
  color: var(--primary);
}

.article-snippet {
  font-size: 0.88rem;
  color: #475569;
  line-height: 1.6;
  margin-bottom: 16px;
  flex: 1;
}

.article-footer-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-top: 1px solid var(--border-light);
  padding-top: 12px;
  font-size: 0.8rem;
  color: var(--text-muted);
}

.read-link {
  font-weight: 600;
  color: var(--primary);
}

/* ==========================================================================
   05 Scenario Chips (7 Cards)
   ========================================================================== */
.scenario-chips-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
}

.scenario-card {
  background: #ffffff;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 20px 16px;
  display: flex;
  flex-direction: column;
  transition: all 0.2s ease;
  text-decoration: none;
}

.scenario-card:hover {
  border-color: var(--primary);
  transform: translateY(-2px);
  box-shadow: var(--shadow-sm);
}

.sc-icon {
  font-size: 1.6rem;
  margin-bottom: 8px;
}

.sc-title {
  font-size: 1.05rem;
  font-weight: 700;
  color: #0f172a;
  margin-bottom: 6px;
}

.sc-desc {
  font-size: 0.82rem;
  color: #64748b;
  line-height: 1.5;
  margin-bottom: 12px;
  flex: 1;
}

.sc-btn {
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--primary);
}

/* ==========================================================================
   06 Criteria Grid (6 Cards)
   ========================================================================== */
.criteria-grid-6 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

.criteria-card {
  background: #ffffff;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 24px;
}

.cr-icon {
  font-size: 1.4rem;
  font-weight: 900;
  color: #cbd5e1;
  margin-bottom: 10px;
}

.cr-title {
  font-size: 1.1rem;
  font-weight: 700;
  color: #0f172a;
  margin-bottom: 8px;
}

.cr-desc {
  font-size: 0.88rem;
  color: #475569;
  line-height: 1.6;
}

/* ==========================================================================
   07 Clients Cards (6 Cards)
   ========================================================================== */
.clients-cards-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

.client-card {
  background: #ffffff;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 24px;
  display: flex;
  flex-direction: column;
  transition: all 0.2s ease;
}

.client-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
  border-color: #cbd5e1;
}

.client-logo-icon {
  font-size: 1.8rem;
  margin-bottom: 10px;
}

.client-name {
  font-size: 1.15rem;
  font-weight: 700;
  color: #0f172a;
  margin-bottom: 4px;
}

.client-platform {
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--primary);
  margin-bottom: 10px;
}

.client-desc {
  font-size: 0.86rem;
  color: #475569;
  line-height: 1.6;
  margin-bottom: 18px;
  flex: 1;
}

.client-guide-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  background-color: var(--bg-alt);
  border: 1px solid var(--border-color);
  color: #0f172a !important;
  font-size: 0.88rem;
  font-weight: 600;
  border-radius: var(--radius-sm);
  text-decoration: none;
  transition: all 0.15s ease;
}

.client-guide-btn:hover {
  background-color: var(--primary);
  border-color: var(--primary);
  color: #ffffff !important;
}

/* ==========================================================================
   08 28 Airports Database Table
   ========================================================================== */
.airports-database-wrapper {
  background: #ffffff;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  overflow: hidden;
}

.database-filters-bar {
  padding: 14px 18px;
  background: #f8fafc;
  border-bottom: 1px solid var(--border-color);
}

.filter-hint {
  font-size: 0.86rem;
  color: #475569;
}

.responsive-table-wrapper {
  width: 100%;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  display: block;
  background: #ffffff;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
}

.airports-data-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.86rem;
  text-align: left;
}

.airports-data-table th {
  background-color: #f8fafc;
  color: #334155;
  font-weight: 700;
  padding: 12px 10px;
  border-bottom: 1px solid var(--border-color);
  white-space: nowrap;
}

.airports-data-table td {
  padding: 11px 10px;
  border-bottom: 1px solid var(--border-light);
  color: #1e293b;
  vertical-align: middle;
}

.airports-data-table tbody tr:hover {
  background-color: #f8fbff;
}

.airports-data-table tr.row-featured {
  background-color: #fbfdff;
}

.airports-data-table .col-num {
  text-align: center;
  color: var(--text-muted);
  width: 44px;
  white-space: nowrap;
}

.airports-data-table .col-brand {
  white-space: nowrap;
  font-weight: 600;
}

.airports-data-table .col-price {
  white-space: nowrap;
}

.airports-data-table .col-traffic {
  white-space: nowrap;
}

.airports-data-table .col-line {
  white-space: nowrap;
}

.airports-data-table .col-coupon {
  white-space: nowrap;
}

.airports-data-table .col-ai {
  white-space: normal;
  max-width: 180px;
  min-width: 120px;
  font-size: 0.78rem;
  line-height: 1.35;
  color: #475569;
}

.airports-data-table .col-actions {
  text-align: center;
  white-space: nowrap;
  width: 90px;
}

.brand-link {
  color: #0f172a;
  font-weight: 600;
}

.brand-link:hover {
  color: var(--primary);
}

.badge-featured-mini {
  background: #dbeafe;
  color: #1d4ed8;
  font-size: 0.68rem;
  font-weight: 700;
  padding: 2px 5px;
  border-radius: 4px;
  margin-left: 6px;
}

.price-tag {
  color: #dc2626;
  font-weight: 700;
}

.line-badge {
  background: #f1f5f9;
  padding: 3px 8px;
  border-radius: 4px;
  font-size: 0.8rem;
}

.coupon-code-text {
  font-family: var(--font-mono);
  background: #fef3c7;
  color: #92400e;
  padding: 2px 6px;
  border-radius: 4px;
  font-size: 0.82rem;
}

.ai-status-text {
  font-size: 0.78rem;
  color: #475569;
  line-height: 1.35;
}

.btn-table-cta {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: var(--primary);
  color: #fff !important;
  font-size: 0.8rem;
  font-weight: 600;
  padding: 6px 12px;
  border-radius: var(--radius-sm);
  min-height: 32px;
}

.btn-table-cta:hover {
  background: var(--primary-hover);
}

/* ==========================================================================
   09 FAQ Section & Cards (All default expanded)
   ========================================================================== */
.home-faq-list,
.faq-cat-cards {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.faq-card-item {
  background: #ffffff;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 20px;
  transition: border-color 0.2s ease;
}

.faq-card-item:hover {
  border-color: #cbd5e1;
}

.faq-question {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: 1.08rem;
  font-weight: 700;
  color: #0f172a;
  line-height: 1.45;
  margin-bottom: 12px;
}

.faq-q-badge {
  background: #e0f2fe;
  color: #0369a1;
  font-size: 0.75rem;
  font-weight: 800;
  padding: 3px 7px;
  border-radius: 4px;
  flex-shrink: 0;
  margin-top: 2px;
}

.faq-answer-block {
  font-size: 0.92rem;
  color: #334155;
  line-height: 1.7;
}

.faq-direct-ans {
  margin-bottom: 12px;
}

.faq-steps-box {
  background: var(--bg-alt);
  border-left: 3px solid var(--primary);
  padding: 12px 16px;
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  font-size: 0.86rem;
}

.faq-steps-list {
  padding-left: 20px;
  margin-top: 6px;
  display: flex;
  flex-direction: column;
  gap: 4px;
}

/* ==========================================================================
   10 Reviews Preview Grid
   ========================================================================== */
.reviews-preview-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}

.review-box {
  background: #ffffff;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 22px;
  display: flex;
  flex-direction: column;
}

.review-title {
  font-size: 1.1rem;
  font-weight: 700;
  line-height: 1.4;
  margin-bottom: 8px;
}

.review-title a {
  color: #0f172a;
}

.review-excerpt {
  font-size: 0.88rem;
  color: #475569;
  line-height: 1.6;
  margin-bottom: 16px;
  flex: 1;
}

.review-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-top: 1px solid var(--border-light);
  padding-top: 10px;
  font-size: 0.8rem;
  color: var(--text-muted);
}

.link-go {
  font-weight: 600;
  color: var(--primary);
}

/* ==========================================================================
   11 Telegram Conversion Banner
   ========================================================================== */
.telegram-cta-section {
  padding: 30px 0 60px;
}

.tg-cta-banner {
  background: linear-gradient(135deg, #1e3a8a 0%, #1e40af 50%, #2563eb 100%);
  border-radius: var(--radius-lg);
  padding: 44px 36px;
  color: #ffffff;
  text-align: center;
  box-shadow: 0 10px 25px -5px rgba(30, 58, 138, 0.3);
}

.tg-cta-content {
  max-width: 680px;
  margin: 0 auto;
}

.tg-badge {
  display: inline-block;
  background: rgba(255, 255, 255, 0.2);
  color: #fff;
  font-size: 0.78rem;
  font-weight: 700;
  padding: 4px 12px;
  border-radius: 20px;
  margin-bottom: 14px;
}

.tg-title {
  font-size: 1.7rem;
  font-weight: 800;
  line-height: 1.3;
  margin-bottom: 12px;
  color: #fff;
}

.tg-desc {
  font-size: 0.95rem;
  opacity: 0.9;
  line-height: 1.65;
  margin-bottom: 24px;
}

.tg-action-row {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
}

.btn-tg-join {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  background-color: #ffffff;
  color: #1e40af !important;
  font-size: 1rem;
  font-weight: 700;
  min-height: 48px;
  padding: 12px 28px;
  border-radius: 30px;
  text-decoration: none;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
  transition: all 0.2s ease;
}

.btn-tg-join:hover {
  transform: translateY(-2px);
  background-color: #f8fafc;
}

.tg-note {
  font-size: 0.78rem;
  opacity: 0.75;
}

/* ==========================================================================
   12 Footer
   ========================================================================== */
.site-footer {
  background-color: #0f172a;
  color: #94a3b8;
  padding: 60px 0 28px;
  margin-top: auto;
  font-size: 0.88rem;
  border-top: 1px solid #1e293b;
}

.footer-top {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 36px;
  margin-bottom: 40px;
}

.footer-logo {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 14px;
  text-decoration: none;
}

.footer-logo .logo-text {
  color: #ffffff;
}

.footer-desc {
  font-size: 0.84rem;
  line-height: 1.7;
  color: #94a3b8;
  margin-bottom: 14px;
  white-space: pre-line;
}

.footer-aff-note {
  font-size: 0.78rem;
  color: #64748b;
  border-left: 2px solid #334155;
  padding-left: 10px;
  line-height: 1.5;
}

.footer-heading {
  font-size: 0.94rem;
  font-weight: 700;
  color: #ffffff;
  margin-bottom: 14px;
  letter-spacing: 0.5px;
}

.footer-links {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.footer-links a {
  color: #94a3b8;
  font-size: 0.84rem;
  transition: color 0.15s ease;
}

.footer-links a:hover {
  color: #ffffff;
}

.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-top: 1px solid #1e293b;
  padding-top: 24px;
  font-size: 0.8rem;
  color: #64748b;
}

.footer-bottom-links {
  display: flex;
  align-items: center;
  gap: 8px;
}

.footer-bottom-links a {
  color: #64748b;
}

.footer-bottom-links a:hover {
  color: #94a3b8;
}

.sep {
  color: #334155;
}

/* ==========================================================================
   Geekblog 3-Column Docs Layout (Sidebar, Main, TOC)
   ========================================================================== */
.docs-layout-container {
  display: flex;
  gap: 32px;
  padding-top: 32px;
  padding-bottom: 60px;
  align-items: flex-start;
}

/* Left Sidebar */
.kb-sidebar {
  width: 240px;
  flex-shrink: 0;
  position: sticky;
  top: 88px;
  max-height: calc(100vh - 100px);
  overflow-y: auto;
}

.kb-sidebar-inner {
  display: flex;
  flex-direction: column;
  gap: 22px;
}

.kb-group-title {
  font-size: 0.75rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.8px;
  color: var(--text-muted);
  margin-bottom: 8px;
}

.kb-nav-links {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.kb-nav-links a {
  display: block;
  font-size: 0.88rem;
  color: #475569;
  padding: 6px 10px;
  border-radius: var(--radius-sm);
  transition: all 0.15s ease;
}

.kb-nav-links a:hover {
  background-color: var(--bg-alt);
  color: var(--primary);
}

.kb-nav-links a.active {
  background-color: var(--primary-light);
  color: var(--primary);
  font-weight: 600;
}

.sidebar-tg-banner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  background-color: #229ed9;
  color: #fff !important;
  font-size: 0.82rem;
  font-weight: 600;
  padding: 8px 12px;
  border-radius: var(--radius-sm);
  min-height: 40px;
}

/* Center Content */
.doc-content-wrapper {
  flex: 1;
  min-width: 0; /* Prevents overflow in flex items */
  background: #ffffff;
}

.breadcrumbs-nav {
  margin-bottom: 16px;
  font-size: 0.82rem;
  color: var(--text-muted);
}

.breadcrumbs-list {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 6px;
  list-style: none;
}

.breadcrumbs-list a {
  color: var(--text-muted);
}

.breadcrumbs-list a:hover {
  color: var(--primary);
}

.breadcrumb-sep {
  color: #cbd5e1;
}

.breadcrumb-item.active {
  color: #0f172a;
  font-weight: 600;
}

.doc-header {
  margin-bottom: 24px;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--border-color);
}

.doc-title {
  font-size: 1.85rem;
  font-weight: 800;
  line-height: 1.35;
  color: #0f172a;
  letter-spacing: -0.4px;
  margin-bottom: 10px;
}

.doc-meta-bar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  font-size: 0.82rem;
  color: var(--text-muted);
}

/* Markdown typography */
.markdown-body {
  font-size: 0.98rem;
  line-height: 1.8;
  color: #1e293b;
  overflow-wrap: break-word;
  word-break: break-word;
}

.markdown-body h2 {
  font-size: 1.45rem;
  font-weight: 800;
  color: #0f172a;
  margin-top: 36px;
  margin-bottom: 14px;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--border-light);
  letter-spacing: -0.3px;
}

.markdown-body h3 {
  font-size: 1.2rem;
  font-weight: 700;
  color: #1e293b;
  margin-top: 26px;
  margin-bottom: 10px;
}

.markdown-body p {
  margin-bottom: 18px;
}

.markdown-body ul,
.markdown-body ol {
  padding-left: 24px;
  margin-bottom: 18px;
}

.markdown-body li {
  margin-bottom: 6px;
}

.markdown-body pre {
  background-color: #0f172a;
  color: #f8fafc;
  padding: 16px 20px;
  border-radius: var(--radius-md);
  overflow-x: auto;
  font-family: var(--font-mono);
  font-size: 0.88rem;
  line-height: 1.5;
  margin-bottom: 20px;
}

.markdown-body code {
  font-family: var(--font-mono);
  font-size: 0.88em;
  background-color: #f1f5f9;
  color: #0f172a;
  padding: 2px 6px;
  border-radius: 4px;
}

.markdown-body pre code {
  background: transparent;
  color: inherit;
  padding: 0;
}

.markdown-body blockquote {
  border-left: 4px solid var(--primary);
  background-color: var(--bg-alt);
  padding: 14px 18px;
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  color: #475569;
  margin-bottom: 20px;
  font-style: normal;
}

.markdown-body blockquote p:last-child {
  margin-bottom: 0;
}

/* Article Footer Pagination & Related */
.article-aff-disclosure {
  margin-top: 36px;
  padding: 14px 18px;
  background: var(--bg-alt);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  font-size: 0.84rem;
  color: var(--text-muted);
  line-height: 1.6;
}

.doc-pagination-nav {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  margin-top: 28px;
  padding-top: 24px;
  border-top: 1px solid var(--border-color);
}

.nav-prev a,
.nav-next a {
  display: flex;
  flex-direction: column;
  padding: 14px 16px;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  background: #ffffff;
  transition: all 0.15s ease;
}

.nav-prev a:hover,
.nav-next a:hover {
  border-color: var(--primary);
  background-color: var(--primary-light);
}

.nav-sub {
  font-size: 0.75rem;
  color: var(--text-muted);
  text-transform: uppercase;
  margin-bottom: 4px;
}

.nav-title {
  font-size: 0.92rem;
  font-weight: 700;
  color: #0f172a;
}

.related-docs-section {
  margin-top: 36px;
}

.related-heading {
  font-size: 1.15rem;
  font-weight: 700;
  color: #0f172a;
  margin-bottom: 14px;
}

.related-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 14px;
}

.related-card {
  display: flex;
  flex-direction: column;
  padding: 14px;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  background: var(--bg-alt);
  transition: all 0.15s ease;
}

.related-card:hover {
  border-color: var(--primary);
  background: #ffffff;
}

.related-card-title {
  font-size: 0.9rem;
  font-weight: 700;
  color: #0f172a;
  margin-bottom: 4px;
}

.related-card-desc {
  font-size: 0.78rem;
  color: var(--text-muted);
  line-height: 1.4;
}

/* Right TOC */
.toc-sidebar {
  width: 220px;
  flex-shrink: 0;
  position: sticky;
  top: 88px;
  max-height: calc(100vh - 100px);
  overflow-y: auto;
}

.toc-card {
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 16px;
  background: #ffffff;
}

.toc-header {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 0.84rem;
  font-weight: 700;
  color: #0f172a;
  margin-bottom: 12px;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--border-light);
}

.toc-body {
  font-size: 0.82rem;
  line-height: 1.5;
}

.toc-body ul {
  list-style: none;
  padding-left: 10px;
}

.toc-body > nav > ul {
  padding-left: 0;
}

.toc-body li {
  margin-bottom: 6px;
}

.toc-body a {
  color: #475569;
  display: block;
}

.toc-body a:hover {
  color: var(--primary);
}

/* ==========================================================================
   Airport Single Review Special Components
   ========================================================================== */
.quick-summary-box {
  background: #eff6ff;
  border-left: 4px solid var(--primary);
  padding: 16px 20px;
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
  margin-bottom: 24px;
}

.summary-badge {
  display: inline-block;
  background: var(--primary);
  color: #fff;
  font-size: 0.75rem;
  font-weight: 800;
  padding: 2px 8px;
  border-radius: 4px;
  margin-bottom: 8px;
}

.summary-p {
  font-size: 0.95rem;
  color: #1e3a8a;
  line-height: 1.7;
}

.airport-action-banner {
  background: #ffffff;
  border: 2px solid #bfdbfe;
  border-radius: var(--radius-lg);
  padding: 20px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  margin-bottom: 32px;
  box-shadow: 0 4px 12px rgba(37, 99, 235, 0.08);
}

.action-price-line {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 10px;
}

.tag-price {
  font-size: 1.45rem;
  font-weight: 800;
  color: #dc2626;
}

.tag-traffic, .tag-line {
  background: #f1f5f9;
  padding: 4px 10px;
  border-radius: var(--radius-sm);
  font-size: 0.85rem;
  font-weight: 600;
  color: #334155;
}

.action-coupon-line {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
  font-size: 0.85rem;
}

.cp-label {
  color: var(--text-muted);
}

.cp-code {
  font-family: var(--font-mono);
  font-size: 0.95rem;
  font-weight: 800;
  background: #fef3c7;
  color: #b45309;
  padding: 2px 8px;
  border-radius: 4px;
}

.cp-tip {
  font-size: 0.78rem;
  color: var(--text-muted);
}

.btn-hero-register {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  background-color: #dc2626;
  color: #fff !important;
  font-size: 1rem;
  font-weight: 700;
  min-height: 48px;
  padding: 12px 24px;
  border-radius: var(--radius-md);
  text-decoration: none;
  box-shadow: 0 4px 10px rgba(220, 38, 38, 0.25);
  white-space: nowrap;
  transition: all 0.2s ease;
}

.btn-hero-register:hover {
  background-color: #b91c1c;
  transform: translateY(-1px);
}

.sub-h2 {
  font-size: 1.35rem;
  font-weight: 800;
  color: #0f172a;
  margin-top: 36px;
  margin-bottom: 14px;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--border-light);
}

.specs-table-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 12px;
  background: #f8fafc;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 16px;
  margin-bottom: 28px;
}

.spec-cell {
  display: flex;
  justify-content: space-between;
  padding: 8px 12px;
  background: #ffffff;
  border-radius: var(--radius-sm);
  font-size: 0.88rem;
  border: 1px solid var(--border-light);
}

.spec-cell .lbl {
  color: var(--text-muted);
}

.highlight-val {
  color: #dc2626;
  font-weight: 800;
}

.ai-verify-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 14px;
  margin-top: 12px;
  margin-bottom: 28px;
}

.ai-card {
  background: var(--bg-alt);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 16px;
}

.ai-name {
  font-weight: 700;
  font-size: 0.95rem;
  color: #0f172a;
  margin-bottom: 6px;
}

.ai-status {
  font-size: 0.84rem;
  color: #334155;
  line-height: 1.5;
}

.ai-notice {
  font-size: 0.82rem;
  color: var(--text-muted);
  margin-bottom: 12px;
}

.pros-cons-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
  margin-bottom: 20px;
}

.pros-col, .cons-col {
  padding: 20px;
  border-radius: var(--radius-md);
}

.pros-col {
  background: #f0fdf4;
  border: 1px solid #bbf7d0;
}

.cons-col {
  background: #fef2f2;
  border: 1px solid #fecaca;
}

.col-title {
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: 12px;
}

.pros-title { color: #15803d; }
.cons-title { color: #b91c1c; }

.pros-list, .cons-list {
  padding-left: 18px;
  font-size: 0.88rem;
  line-height: 1.6;
}

.pros-list li { margin-bottom: 6px; }
.cons-list li { margin-bottom: 6px; }

.audience-compare-box {
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin-bottom: 28px;
}

.audience-block {
  padding: 12px 16px;
  border-radius: var(--radius-sm);
  font-size: 0.88rem;
}

.suitable-block {
  background: #f0f9ff;
  border-left: 3px solid #0284c7;
  color: #0369a1;
}

.not-suitable-block {
  background: #fff1f2;
  border-left: 3px solid #f43f5e;
  color: #be123c;
}

.faq-mini-list {
  display: flex;
  flex-direction: column;
  gap: 14px;
  margin-top: 14px;
  margin-bottom: 28px;
}

.faq-mini-item {
  background: var(--bg-alt);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 16px;
}

.faq-mini-q {
  font-size: 0.95rem;
  font-weight: 700;
  color: #0f172a;
  margin-bottom: 6px;
}

.faq-mini-a {
  font-size: 0.86rem;
  color: #475569;
  line-height: 1.6;
}

/* ==========================================================================
   Section Lists & Cards
   ========================================================================== */
.section-list-header {
  margin-bottom: 28px;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--border-color);
}

.section-title {
  font-size: 1.85rem;
  font-weight: 800;
  color: #0f172a;
  letter-spacing: -0.4px;
  margin-bottom: 10px;
}

.section-lead {
  font-size: 1rem;
  color: #475569;
  line-height: 1.7;
}

.articles-list-grid {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.article-item-card {
  background: #ffffff;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 24px;
  transition: all 0.2s ease;
}

.article-item-card:hover {
  border-color: #cbd5e1;
  box-shadow: var(--shadow-sm);
}

.article-card-h2 {
  font-size: 1.25rem;
  font-weight: 700;
  line-height: 1.4;
  margin-bottom: 8px;
}

.card-link-title {
  color: #0f172a;
}

.card-link-title:hover {
  color: var(--primary);
}

.article-card-meta {
  font-size: 0.8rem;
  color: var(--text-muted);
  margin-bottom: 12px;
}

.article-card-summary {
  font-size: 0.92rem;
  color: #475569;
  line-height: 1.65;
  margin-bottom: 16px;
}

.read-more-link {
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--primary);
}

/* ==========================================================================
   28 Airports List Page Grid
   ========================================================================== */
.airports-notice-box {
  background: #eff6ff;
  border-left: 3px solid var(--primary);
  padding: 12px 16px;
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  font-size: 0.86rem;
  color: #1e3a8a;
  margin-bottom: 24px;
}

.airports-grid-section {
  margin-top: 40px;
}

.grid-section-title {
  font-size: 1.45rem;
  font-weight: 800;
  color: #0f172a;
  margin-bottom: 20px;
}

.airports-cards-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

.airport-entry-card {
  background: #ffffff;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 20px;
  display: flex;
  flex-direction: column;
  transition: all 0.2s ease;
}

.airport-entry-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
  border-color: #cbd5e1;
}

.card-entry-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 10px;
}

.entry-title {
  font-size: 1.1rem;
  font-weight: 700;
}

.entry-title a {
  color: #0f172a;
}

.entry-pricing-row {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  background: #f8fafc;
  padding: 8px 12px;
  border-radius: var(--radius-sm);
  margin-bottom: 12px;
}

.entry-price {
  font-size: 1.2rem;
  font-weight: 800;
  color: #dc2626;
}

.entry-traffic {
  font-size: 0.84rem;
  font-weight: 600;
  color: #334155;
}

.entry-line, .entry-desc, .entry-coupon-row {
  font-size: 0.84rem;
  color: #475569;
  margin-bottom: 6px;
}

.entry-desc {
  flex: 1;
  margin-bottom: 12px;
}

.entry-coupon-row .coupon-val {
  font-family: var(--font-mono);
  background: #fef3c7;
  color: #92400e;
  padding: 2px 6px;
  border-radius: 4px;
}

.entry-actions {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
  margin-top: 14px;
}

.btn-entry-detail, .btn-entry-aff {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 0.82rem;
  font-weight: 600;
  min-height: 40px;
  padding: 6px 10px;
  border-radius: var(--radius-sm);
  text-decoration: none;
}

.btn-entry-detail {
  background: var(--bg-alt);
  border: 1px solid var(--border-color);
  color: #0f172a;
}

.btn-entry-detail:hover {
  background: #e2e8f0;
}

.btn-entry-aff {
  background: var(--primary);
  color: #fff !important;
}

.btn-entry-aff:hover {
  background: var(--primary-hover);
}

.airports-aff-footer {
  margin-top: 36px;
  padding: 14px 18px;
  background: var(--bg-alt);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  font-size: 0.82rem;
  color: var(--text-muted);
}

/* ==========================================================================
   FAQ Page
   ========================================================================== */
.faq-list-container {
  margin-top: 20px;
}

.faq-nav-notice {
  background: #f0fdf4;
  border-left: 3px solid #16a34a;
  padding: 12px 16px;
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  font-size: 0.88rem;
  color: #166534;
  margin-bottom: 24px;
}

.faq-categories-index {
  background: #ffffff;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 18px;
  margin-bottom: 36px;
}

.faq-index-title {
  display: block;
  font-size: 0.85rem;
  font-weight: 700;
  color: #334155;
  margin-bottom: 12px;
}

.faq-tags-cloud {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.faq-cat-tag {
  background: var(--bg-alt);
  border: 1px solid var(--border-color);
  color: #475569;
  font-size: 0.8rem;
  padding: 4px 10px;
  border-radius: 20px;
  transition: all 0.15s ease;
}

.faq-cat-tag:hover {
  background: var(--primary-light);
  border-color: var(--primary);
  color: var(--primary);
}

.faq-category-group {
  margin-bottom: 40px;
  scroll-margin-top: 80px;
}

.faq-cat-title {
  font-size: 1.3rem;
  font-weight: 800;
  color: #0f172a;
  margin-bottom: 16px;
  padding-bottom: 8px;
  border-bottom: 2px solid var(--border-color);
}

.faq-footer-help {
  margin-top: 40px;
  padding: 30px;
  background: var(--bg-alt);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  text-align: center;
}

.faq-footer-help h3 {
  font-size: 1.3rem;
  font-weight: 800;
  color: #0f172a;
  margin-bottom: 8px;
}

.faq-footer-help p {
  font-size: 0.92rem;
  color: #475569;
  margin-bottom: 18px;
}

.btn-faq-tg {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: #229ed9;
  color: #fff !important;
  font-size: 0.95rem;
  font-weight: 700;
  min-height: 44px;
  padding: 10px 24px;
  border-radius: 30px;
  text-decoration: none;
}

.btn-faq-tg:hover {
  background: #1a88be;
}

/* ==========================================================================
   Search Modal
   ========================================================================== */
.search-modal {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  z-index: 300;
  display: flex;
  align-items: flex-start;
  justify-content: center;
  padding-top: 80px;
}

.search-modal-backdrop {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(15, 23, 42, 0.6);
  backdrop-filter: blur(4px);
}

.search-modal-card {
  position: relative;
  width: 640px;
  max-width: 92vw;
  background: #ffffff;
  border-radius: var(--radius-lg);
  box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.2), 0 10px 10px -5px rgba(0, 0, 0, 0.08);
  border: 1px solid var(--border-color);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  max-height: 80vh;
}

.search-modal-header {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 16px 20px;
  border-bottom: 1px solid var(--border-color);
}

.search-modal-icon {
  color: var(--text-muted);
}

#search-modal-input {
  flex: 1;
  border: none;
  outline: none;
  font-size: 1.05rem;
  color: #0f172a;
}

.search-close-btn {
  background: none;
  border: none;
  font-size: 1.6rem;
  color: var(--text-muted);
  cursor: pointer;
  padding: 0 4px;
}

.search-results-list {
  overflow-y: auto;
  padding: 12px;
  flex: 1;
  max-height: 55vh;
}

.search-initial-hint {
  padding: 24px;
  text-align: center;
  font-size: 0.88rem;
  color: var(--text-muted);
}

.search-result-item {
  display: block;
  padding: 12px 14px;
  border-radius: var(--radius-md);
  margin-bottom: 6px;
  text-decoration: none;
  transition: background-color 0.15s ease;
}

.search-result-item:hover {
  background-color: var(--bg-alt);
}

.search-result-title {
  font-size: 0.98rem;
  font-weight: 700;
  color: #0f172a;
  margin-bottom: 4px;
}

.search-result-snippet {
  font-size: 0.84rem;
  color: #475569;
  line-height: 1.5;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.search-modal-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px 16px;
  background: var(--bg-alt);
  border-top: 1px solid var(--border-color);
  font-size: 0.75rem;
  color: var(--text-muted);
}

.search-modal-footer kbd {
  background: #e2e8f0;
  padding: 1px 4px;
  border-radius: 3px;
  font-family: var(--font-mono);
}

/* ==========================================================================
   404 Page
   ========================================================================== */
.notfound-container {
  padding: 80px 20px;
  text-align: center;
}

.notfound-card {
  max-width: 580px;
  margin: 0 auto;
  background: #ffffff;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 44px 32px;
}

.notfound-code {
  font-size: 5rem;
  font-weight: 900;
  color: var(--primary);
  line-height: 1;
  margin-bottom: 12px;
}

.notfound-title {
  font-size: 1.5rem;
  font-weight: 800;
  color: #0f172a;
  margin-bottom: 12px;
}

.notfound-desc {
  font-size: 0.94rem;
  color: #475569;
  line-height: 1.65;
  margin-bottom: 28px;
}

.notfound-actions {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 12px;
}

/* ==========================================================================
   Responsive Breakpoints & Mobile Optimization
   (Depth check: 320px, 360px, 375px, 390px, 430px, 768px, 992px)
   ========================================================================== */
@media (max-width: 1080px) {
  .decision-grid-4,
  .featured-grid,
  .scenario-chips-grid,
  .reviews-preview-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .footer-top {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 1024px) {
  .desktop-only {
    display: none !important;
  }

  .header-mobile-controls {
    display: flex !important;
  }

  .docs-layout-container {
    flex-direction: column;
    gap: 20px;
  }

  .kb-sidebar {
    position: static;
    width: 100%;
    max-height: none;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 16px;
    background: #ffffff;
  }

  .toc-sidebar {
    position: static;
    width: 100%;
    max-height: none;
    order: -1;
    margin-bottom: 16px;
  }

  .hero-h1 {
    font-size: clamp(1.35rem, 3.2vw, 1.65rem);
    line-height: 1.4;
  }

  .hero-title {
    font-size: 1.15rem;
  }

  .criteria-grid-6,
  .clients-cards-grid,
  .articles-latest-grid,
  .reviews-preview-grid,
  .airports-cards-grid {
    grid-template-columns: 1fr;
  }

  .hero-stats-bar {
    grid-template-columns: repeat(3, 1fr);
  }
}

@media (max-width: 640px) {
  .hero-h1 {
    font-size: 1.3rem;
    line-height: 1.45;
  }

  .decision-grid-4,
  .featured-grid,
  .scenario-chips-grid {
    grid-template-columns: 1fr;
  }

  .pros-cons-grid,
  .specs-table-grid,
  .ai-verify-grid {
    grid-template-columns: 1fr;
  }

  .airport-action-banner {
    flex-direction: column;
    align-items: stretch;
  }

  .btn-hero-register {
    width: 100%;
  }

  .footer-top {
    grid-template-columns: 1fr;
  }

  .footer-bottom {
    flex-direction: column;
    gap: 12px;
    text-align: center;
  }

  .doc-pagination-nav {
    grid-template-columns: 1fr;
  }

  .related-grid {
    grid-template-columns: 1fr;
  }

  .search-modal {
    padding-top: 10px;
  }

  .search-modal-card {
    height: 95vh;
    max-height: 95vh;
    border-radius: var(--radius-md);
  }
}

/* Extra safety for 320px minimum mobile width */
@media (max-width: 360px) {
  html, body {
    font-size: 15px;
  }

  .container {
    padding-left: 12px;
    padding-right: 12px;
  }

  .hero-cta-group a {
    width: 100%;
  }

  .tg-cta-banner {
    padding: 24px 16px;
  }

  .card-pricing-badge {
    flex-direction: column;
    gap: 4px;
  }
}