/* ===================================================================
   SpeedCAT 闪电猫机场 - 现代机场航站楼动态航显风 (Modern FIDS Terminal)
   视觉基调: 国际机场暗调大理石灰 + 航显荧光黄 + 登机口薄荷绿
   =================================================================== */

@import url('https://fonts.googleapis.com/css2?family=Chakra+Petch:ital,wght@0,400;0,600;0,700;1,400&family=JetBrains+Mono:wght@400;600;700;800&family=Noto+Sans+SC:wght@400;500;700;900&display=swap');

:root {
  --bg-dark-0: #080A0F;
  --bg-dark-1: #0D1117;
  --bg-dark-2: #141A23;
  --bg-dark-3: #1B222E;
  --bg-card: rgba(20, 26, 36, 0.88);
  --bg-card-hover: rgba(27, 34, 46, 0.95);
  --border-subtle: rgba(255, 255, 255, 0.08);
  --border-bright: rgba(255, 208, 0, 0.35);
  --border-green: rgba(0, 230, 118, 0.35);

  /* 航显核心色彩 */
  --airport-yellow: #FFD000;
  --airport-yellow-glow: rgba(255, 208, 0, 0.45);
  --airport-yellow-dim: #D4A800;
  
  --mint-green: #00E676;
  --mint-green-glow: rgba(0, 230, 118, 0.45);
  --mint-green-dark: #008744;

  --radar-blue: #00B0FF;
  --radar-blue-glow: rgba(0, 176, 255, 0.35);

  --alert-orange: #FF9100;
  --terminal-red: #FF3D00;

  --text-main: #F0F4F8;
  --text-muted: #8E9BAE;
  --text-dim: #546274;

  --font-fids: 'JetBrains Mono', 'Chakra Petch', monospace;
  --font-heading: 'Chakra Petch', 'Noto Sans SC', sans-serif;
  --font-body: 'Noto Sans SC', -apple-system, BlinkMacSystemFont, sans-serif;

  --transition-fast: 0.2s cubic-bezier(0.16, 1, 0.3, 1);
  --transition-normal: 0.35s cubic-bezier(0.16, 1, 0.3, 1);
  --shadow-terminal: 0 16px 36px -10px rgba(0, 0, 0, 0.7);
  --shadow-fids: 0 0 25px rgba(255, 208, 0, 0.15), inset 0 0 30px rgba(0, 0, 0, 0.8);
}

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

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  background-color: var(--bg-dark-0);
  color: var(--text-main);
  font-family: var(--font-body);
  line-height: 1.6;
  overflow-x: hidden;
  background-image: 
    radial-gradient(circle at 50% 0%, rgba(255, 208, 0, 0.05) 0%, transparent 60%),
    radial-gradient(circle at 100% 50%, rgba(0, 230, 118, 0.03) 0%, transparent 50%),
    linear-gradient(rgba(255, 255, 255, 0.02) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.02) 1px, transparent 1px);
  background-size: 100% 100%, 100% 100%, 48px 48px, 48px 48px;
}

/* 动态背景 Canvas */
#radarCanvas {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  z-index: 0;
  pointer-events: none;
  opacity: 0.75;
}

/* 整体容器 */
.terminal-layout {
  position: relative;
  z-index: 1;
  width: 100%;
}

.container {
  width: 100%;
  max-width: 1240px;
  margin: 0 auto;
  padding: 0 20px;
}

/* 顶部航站楼广播通知跑马灯 (Live Airport Advisory Ticker) */
.terminal-ticker-bar {
  background: linear-gradient(90deg, #10151E, #18202E, #10151E);
  border-bottom: 1px solid var(--border-bright);
  padding: 8px 0;
  font-family: var(--font-fids);
  font-size: 0.85rem;
  overflow: hidden;
  position: sticky;
  top: 0;
  z-index: 1000;
  backdrop-filter: blur(12px);
  display: flex;
  align-items: center;
}

.ticker-inner {
  display: flex;
  align-items: center;
  width: 100%;
}

.ticker-badge {
  background: var(--airport-yellow);
  color: #000;
  font-weight: 800;
  padding: 2px 10px;
  border-radius: 2px;
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-right: 15px;
  white-space: nowrap;
  box-shadow: 0 0 10px var(--airport-yellow-glow);
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.ticker-badge::before {
  content: '';
  display: inline-block;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: #000;
  animation: blink 1.2s infinite;
}

.ticker-marquee {
  white-space: nowrap;
  overflow: hidden;
  flex: 1;
}

.ticker-track {
  display: inline-block;
  animation: marquee 32s linear infinite;
  color: #E2E8F0;
}

.ticker-track span {
  margin-right: 40px;
  color: var(--text-muted);
}

.ticker-track span strong {
  color: var(--airport-yellow);
  font-weight: 700;
}

.ticker-track span.highlight-green {
  color: var(--mint-green);
}

@keyframes marquee {
  0% { transform: translateX(0); }
  100% { transform: translateX(-50%); }
}

@keyframes blink {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.2; }
}

/* 导航栏 (Navigation Bar) */
.terminal-nav {
  background: rgba(13, 17, 23, 0.92);
  border-bottom: 1px solid var(--border-subtle);
  position: sticky;
  top: 37px;
  z-index: 999;
  backdrop-filter: blur(16px);
  padding: 12px 0;
}

.nav-container {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
}

.logo-badge {
  width: 40px;
  height: 40px;
  background: #000;
  border: 1px solid var(--airport-yellow);
  border-radius: 6px;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 0 12px var(--airport-yellow-glow);
}

.logo-badge svg {
  width: 24px;
  height: 24px;
  fill: var(--airport-yellow);
}

.logo-text {
  display: flex;
  flex-direction: column;
}

.logo-title {
  font-family: var(--font-heading);
  font-size: 1.35rem;
  font-weight: 800;
  letter-spacing: 1.5px;
  color: #FFFFFF;
}

.logo-title span {
  color: var(--airport-yellow);
}

.logo-sub {
  font-family: var(--font-fids);
  font-size: 0.65rem;
  color: var(--mint-green);
  letter-spacing: 2px;
  text-transform: uppercase;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 22px;
  list-style: none;
}

.nav-links a {
  color: var(--text-muted);
  text-decoration: none;
  font-size: 0.9rem;
  font-weight: 600;
  font-family: var(--font-heading);
  letter-spacing: 0.5px;
  transition: var(--transition-fast);
  padding: 6px 10px;
  border-radius: 4px;
}

.nav-links a:hover,
.nav-links a.active {
  color: var(--airport-yellow);
  background: rgba(255, 208, 0, 0.08);
}

.nav-links a.kb-link {
  color: var(--mint-green);
  border: 1px dashed rgba(0, 230, 118, 0.4);
  background: rgba(0, 230, 118, 0.06);
}

.nav-links a.kb-link:hover {
  background: rgba(0, 230, 118, 0.15);
  box-shadow: 0 0 10px var(--mint-green-glow);
}

.nav-cta-btn {
  background: var(--airport-yellow);
  color: #000;
  font-family: var(--font-heading);
  font-weight: 800;
  font-size: 0.9rem;
  padding: 8px 18px;
  border-radius: 4px;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  letter-spacing: 0.5px;
  box-shadow: 0 0 15px var(--airport-yellow-glow);
  transition: var(--transition-fast);
  border: 1px solid #FFE066;
}

.nav-cta-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 0 25px var(--airport-yellow);
  background: #FFE066;
}

.nav-mobile-toggle {
  display: none;
  background: transparent;
  border: 1px solid var(--border-bright);
  color: var(--airport-yellow);
  padding: 6px 10px;
  border-radius: 4px;
  font-size: 1.2rem;
  cursor: pointer;
}

/* Hero 板块：航站楼总控制台 (Terminal Command Hero) */
.hero-section {
  padding: 70px 0 50px;
  position: relative;
}

.hero-meta-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: rgba(13, 17, 23, 0.6);
  border: 1px solid var(--border-subtle);
  border-left: 3px solid var(--airport-yellow);
  padding: 8px 16px;
  border-radius: 4px;
  font-family: var(--font-fids);
  font-size: 0.8rem;
  color: var(--text-muted);
  margin-bottom: 25px;
}

.hero-meta-left {
  display: flex;
  align-items: center;
  gap: 15px;
}

.hero-meta-status {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: var(--mint-green);
  font-weight: 700;
}

.status-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--mint-green);
  box-shadow: 0 0 8px var(--mint-green);
  animation: blink 1.5s infinite;
}

.hero-meta-right {
  color: var(--airport-yellow);
}

.hero-header {
  text-align: center;
  margin-bottom: 45px;
}

.hero-tag {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-fids);
  font-size: 0.85rem;
  color: var(--airport-yellow);
  background: rgba(255, 208, 0, 0.08);
  border: 1px solid rgba(255, 208, 0, 0.25);
  padding: 4px 14px;
  border-radius: 20px;
  margin-bottom: 18px;
  letter-spacing: 1px;
}

.hero-title {
  font-family: var(--font-heading);
  font-size: 3.2rem;
  font-weight: 800;
  line-height: 1.15;
  color: #FFFFFF;
  margin-bottom: 18px;
  letter-spacing: -0.5px;
}

.hero-title .yellow-text {
  color: var(--airport-yellow);
  text-shadow: 0 0 25px var(--airport-yellow-glow);
}

.hero-title .mint-text {
  color: var(--mint-green);
}

.hero-subtitle {
  font-size: 1.25rem;
  color: #CBD5E1;
  max-width: 780px;
  margin: 0 auto 28px;
  line-height: 1.6;
}

.hero-subtitle strong {
  color: #FFFFFF;
  border-bottom: 2px solid var(--airport-yellow);
}

.hero-actions {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 20px;
  flex-wrap: wrap;
  margin-bottom: 35px;
}

.btn-primary-fids {
  background: var(--airport-yellow);
  color: #000;
  font-family: var(--font-heading);
  font-size: 1.1rem;
  font-weight: 800;
  padding: 14px 34px;
  border-radius: 6px;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 10px;
  letter-spacing: 1px;
  box-shadow: 0 8px 25px var(--airport-yellow-glow);
  transition: all 0.25s ease;
  border: 2px solid #FFE066;
}

.btn-primary-fids:hover {
  transform: translateY(-3px) scale(1.02);
  box-shadow: 0 12px 35px rgba(255, 208, 0, 0.6);
  background: #FFF080;
}

.btn-secondary-fids {
  background: rgba(20, 26, 36, 0.8);
  color: #FFFFFF;
  font-family: var(--font-heading);
  font-size: 1.1rem;
  font-weight: 700;
  padding: 14px 28px;
  border-radius: 6px;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 10px;
  border: 1px solid var(--border-subtle);
  transition: all 0.25s ease;
}

.btn-secondary-fids:hover {
  background: rgba(27, 34, 46, 0.95);
  border-color: var(--airport-yellow);
  color: var(--airport-yellow);
}

.hero-stats-row {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
  max-width: 1040px;
  margin: 0 auto;
}

.stat-terminal-box {
  background: rgba(18, 23, 32, 0.7);
  border: 1px solid var(--border-subtle);
  border-radius: 8px;
  padding: 18px 20px;
  text-align: left;
  position: relative;
  overflow: hidden;
  backdrop-filter: blur(8px);
}

.stat-terminal-box::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--airport-yellow), transparent);
  opacity: 0.6;
}

.stat-label {
  font-family: var(--font-fids);
  font-size: 0.75rem;
  color: var(--text-dim);
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-bottom: 6px;
}

.stat-val {
  font-family: var(--font-fids);
  font-size: 1.8rem;
  font-weight: 800;
  color: #FFFFFF;
  line-height: 1.1;
}

.stat-val span {
  font-size: 1rem;
  color: var(--airport-yellow);
  font-weight: 600;
  margin-left: 4px;
}

.stat-desc {
  font-size: 0.8rem;
  color: var(--text-muted);
  margin-top: 4px;
}

/* ===================================================================
   板块 1 & 核心模块：全动态航班看板 FIDS (Split-Flap Flight Board)
   =================================================================== */
.fids-section {
  padding: 60px 0;
  position: relative;
}

.section-head {
  text-align: center;
  margin-bottom: 35px;
}

.section-badge {
  font-family: var(--font-fids);
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 2px;
  color: var(--airport-yellow);
  text-transform: uppercase;
  display: inline-block;
  margin-bottom: 8px;
  background: rgba(255, 208, 0, 0.1);
  padding: 4px 12px;
  border-radius: 4px;
  border: 1px solid rgba(255, 208, 0, 0.2);
}

.section-title {
  font-family: var(--font-heading);
  font-size: 2.3rem;
  font-weight: 800;
  color: #FFFFFF;
  margin-bottom: 12px;
}

.section-subtitle {
  color: var(--text-muted);
  font-size: 1.05rem;
  max-width: 680px;
  margin: 0 auto;
}

/* FIDS 航显主显示屏容器 */
.fids-board-wrapper {
  background: #06080C;
  border: 2px solid #232B3A;
  border-radius: 12px;
  box-shadow: 0 25px 60px rgba(0, 0, 0, 0.85), 0 0 20px rgba(255, 208, 0, 0.1);
  overflow: hidden;
  position: relative;
}

.fids-top-bezel {
  background: linear-gradient(180deg, #1A212D 0%, #0F141D 100%);
  padding: 14px 24px;
  border-bottom: 2px solid #232B3A;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 15px;
}

.fids-bezel-title {
  display: flex;
  align-items: center;
  gap: 14px;
}

.fids-led-indicator {
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--mint-green);
  box-shadow: 0 0 12px var(--mint-green);
  animation: blink 1.2s infinite;
}

.fids-title-text {
  font-family: var(--font-fids);
  font-weight: 800;
  font-size: 1.1rem;
  letter-spacing: 2px;
  color: #FFFFFF;
}

.fids-clock-panel {
  display: flex;
  align-items: center;
  gap: 20px;
  font-family: var(--font-fids);
  font-size: 0.9rem;
}

.fids-time-utc {
  color: var(--airport-yellow);
  background: #000;
  padding: 4px 10px;
  border-radius: 4px;
  border: 1px solid rgba(255, 208, 0, 0.3);
  font-weight: 700;
}

.fids-refresh-btn {
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.15);
  color: var(--text-main);
  padding: 5px 12px;
  border-radius: 4px;
  font-family: var(--font-fids);
  font-size: 0.8rem;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  transition: var(--transition-fast);
}

.fids-refresh-btn:hover {
  background: var(--airport-yellow);
  color: #000;
  border-color: var(--airport-yellow);
}

/* FIDS 表头 */
.fids-header-row {
  display: grid;
  grid-template-columns: 140px 1.5fr 110px 140px 1.2fr 130px;
  padding: 12px 24px;
  background: #0A0D14;
  border-bottom: 1px solid #1C2331;
  font-family: var(--font-fids);
  font-size: 0.78rem;
  font-weight: 800;
  color: var(--text-dim);
  text-transform: uppercase;
  letter-spacing: 1.5px;
}

/* FIDS 翻牌行列表 */
.fids-body-table {
  display: flex;
  flex-direction: column;
}

.fids-flight-row {
  display: grid;
  grid-template-columns: 140px 1.5fr 110px 140px 1.2fr 130px;
  padding: 16px 24px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.04);
  align-items: center;
  font-family: var(--font-fids);
  transition: background 0.2s ease;
  position: relative;
}

.fids-flight-row:hover {
  background: rgba(255, 208, 0, 0.04);
}

.fids-flight-row::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 3px;
  background: transparent;
  transition: background 0.2s ease;
}

.fids-flight-row:hover::before {
  background: var(--airport-yellow);
}

/* 翻牌字符拟态卡片 (Flap Cell) */
.flap-cell {
  display: inline-flex;
  align-items: center;
}

.flight-code {
  font-size: 1.05rem;
  font-weight: 800;
  color: var(--airport-yellow);
  letter-spacing: 1px;
  text-shadow: 0 0 10px rgba(255, 208, 0, 0.4);
}

.dest-box {
  display: flex;
  flex-direction: column;
}

.dest-city {
  font-size: 1.05rem;
  font-weight: 700;
  color: #FFFFFF;
}

.dest-tag {
  font-size: 0.75rem;
  color: var(--text-muted);
}

.gate-badge {
  background: #141A24;
  border: 1px solid #283344;
  color: #E2E8F0;
  font-weight: 700;
  padding: 3px 8px;
  border-radius: 3px;
  font-size: 0.85rem;
  display: inline-block;
  text-align: center;
}

.status-cell {
  display: flex;
  align-items: center;
  gap: 8px;
  font-weight: 700;
  font-size: 0.95rem;
}

.status-on-time {
  color: var(--mint-green);
  text-shadow: 0 0 8px var(--mint-green-glow);
}

.status-ping-val {
  font-size: 0.85rem;
  padding: 2px 6px;
  background: rgba(0, 230, 118, 0.12);
  border: 1px solid rgba(0, 230, 118, 0.3);
  border-radius: 3px;
}

.route-desc-cell {
  font-size: 0.85rem;
  color: #94A3B8;
}

.route-desc-cell strong {
  color: #FFFFFF;
}

.action-cell {
  text-align: right;
}

.board-btn {
  background: var(--mint-green);
  color: #000;
  font-family: var(--font-heading);
  font-weight: 800;
  font-size: 0.85rem;
  padding: 7px 14px;
  border-radius: 4px;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  letter-spacing: 0.5px;
  box-shadow: 0 0 10px var(--mint-green-glow);
  transition: var(--transition-fast);
  white-space: nowrap;
}

.board-btn:hover {
  background: #39FF88;
  transform: translateY(-2px);
  box-shadow: 0 0 18px rgba(0, 230, 118, 0.8);
}

.fids-footer-bar {
  background: #090C12;
  border-top: 1px solid #1C2331;
  padding: 12px 24px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-family: var(--font-fids);
  font-size: 0.8rem;
  color: var(--text-dim);
}

.fids-note {
  display: flex;
  align-items: center;
  gap: 8px;
}

.fids-note span {
  color: var(--airport-yellow);
}

/* ===================================================================
   板块 3：实时节点延迟与雷达状态板块 (Live Node Status & Radar Telemetry)
   =================================================================== */
.radar-section {
  padding: 60px 0;
  position: relative;
}

.radar-telemetry-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  margin-top: 30px;
}

.telemetry-card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: 10px;
  padding: 22px;
  position: relative;
  overflow: hidden;
  transition: var(--transition-normal);
  backdrop-filter: blur(8px);
}

.telemetry-card:hover {
  transform: translateY(-4px);
  border-color: var(--border-bright);
  background: var(--bg-card-hover);
  box-shadow: 0 12px 30px rgba(0, 0, 0, 0.5);
}

.telemetry-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: 16px;
}

.node-region {
  display: flex;
  align-items: center;
  gap: 10px;
}

.node-flag {
  font-size: 1.5rem;
}

.node-name {
  font-family: var(--font-heading);
  font-size: 1.15rem;
  font-weight: 700;
  color: #FFFFFF;
}

.node-type {
  font-family: var(--font-fids);
  font-size: 0.72rem;
  color: var(--airport-yellow);
}

.ping-indicator {
  text-align: right;
  font-family: var(--font-fids);
}

.ping-ms {
  font-size: 1.4rem;
  font-weight: 800;
  color: var(--mint-green);
}

.ping-label {
  font-size: 0.68rem;
  color: var(--text-dim);
  text-transform: uppercase;
}

.telemetry-chart-bar {
  height: 6px;
  background: rgba(255, 255, 255, 0.08);
  border-radius: 3px;
  overflow: hidden;
  margin-bottom: 14px;
}

.chart-bar-fill {
  height: 100%;
  background: linear-gradient(90deg, var(--mint-green), var(--airport-yellow));
  border-radius: 3px;
  transition: width 0.6s ease;
}

.telemetry-specs {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 8px;
  font-family: var(--font-fids);
  font-size: 0.78rem;
  border-top: 1px dashed rgba(255, 255, 255, 0.08);
  padding-top: 12px;
}

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

.spec-item strong {
  color: #FFFFFF;
  margin-left: 4px;
}

.spec-item .good-val {
  color: var(--mint-green);
}

/* ===================================================================
   板块 4：套餐价格板块（舱位分阶卡片）与核心优势板块
   =================================================================== */
.pricing-section {
  padding: 60px 0 80px;
  position: relative;
}

.cabin-billing-switcher {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 12px;
  margin-bottom: 40px;
}

.billing-pill {
  background: rgba(18, 23, 32, 0.8);
  border: 1px solid var(--border-subtle);
  padding: 4px;
  border-radius: 30px;
  display: inline-flex;
}

.billing-opt {
  background: transparent;
  border: none;
  color: var(--text-muted);
  font-family: var(--font-heading);
  font-size: 0.95rem;
  font-weight: 700;
  padding: 8px 20px;
  border-radius: 20px;
  cursor: pointer;
  transition: var(--transition-fast);
}

.billing-opt.active {
  background: var(--airport-yellow);
  color: #000;
  box-shadow: 0 0 15px var(--airport-yellow-glow);
}

.pricing-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 22px;
  align-items: stretch;
}

/* 登机牌设计卡片 (Boarding Pass Card) */
.cabin-card {
  background: #111620;
  border: 1px solid #222C3C;
  border-radius: 12px;
  display: flex;
  flex-direction: column;
  position: relative;
  overflow: hidden;
  transition: var(--transition-normal);
  box-shadow: var(--shadow-terminal);
}

.cabin-card:hover {
  transform: translateY(-6px);
  border-color: var(--border-bright);
}

.cabin-card.featured {
  background: linear-gradient(180deg, #182230 0%, #111620 100%);
  border: 2px solid var(--airport-yellow);
  box-shadow: 0 15px 40px rgba(255, 208, 0, 0.2);
}

.cabin-badge-top {
  position: absolute;
  top: 14px;
  right: -32px;
  background: var(--airport-yellow);
  color: #000;
  font-family: var(--font-fids);
  font-size: 0.7rem;
  font-weight: 800;
  padding: 4px 35px;
  transform: rotate(45deg);
  letter-spacing: 1px;
  text-transform: uppercase;
}

.cabin-header {
  padding: 24px 22px 18px;
  border-bottom: 1px dashed rgba(255, 255, 255, 0.1);
  position: relative;
}

.cabin-code {
  font-family: var(--font-fids);
  font-size: 0.75rem;
  color: var(--airport-yellow);
  letter-spacing: 2px;
  text-transform: uppercase;
  margin-bottom: 4px;
}

.cabin-title {
  font-family: var(--font-heading);
  font-size: 1.6rem;
  font-weight: 800;
  color: #FFFFFF;
  margin-bottom: 8px;
}

.cabin-slogan {
  font-size: 0.88rem;
  color: var(--text-muted);
  line-height: 1.4;
  min-height: 38px;
}

.cabin-price-wrap {
  padding: 20px 22px;
  background: rgba(0, 0, 0, 0.25);
  display: flex;
  align-items: baseline;
  gap: 4px;
}

.currency-sym {
  font-size: 1.2rem;
  color: var(--airport-yellow);
  font-weight: 700;
}

.cabin-price-num {
  font-family: var(--font-fids);
  font-size: 2.4rem;
  font-weight: 800;
  color: #FFFFFF;
}

.cabin-price-unit {
  font-size: 0.85rem;
  color: var(--text-dim);
}

.cabin-features {
  padding: 20px 22px;
  list-style: none;
  flex: 1;
}

.cabin-features li {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: 0.9rem;
  color: #CBD5E1;
  margin-bottom: 12px;
}

.cabin-features li svg {
  width: 16px;
  height: 16px;
  flex-shrink: 0;
  margin-top: 3px;
  fill: var(--mint-green);
}

.cabin-features li strong {
  color: #FFFFFF;
}

.cabin-footer {
  padding: 18px 22px 24px;
  background: #0D1118;
  border-top: 1px dashed rgba(255, 255, 255, 0.1);
  position: relative;
}

/* 登机口与条形码装饰 */
.boarding-barcode {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 14px;
  opacity: 0.45;
  font-family: var(--font-fids);
  font-size: 0.65rem;
  letter-spacing: 1px;
}

.barcode-lines {
  height: 18px;
  width: 100px;
  background: repeating-linear-gradient(90deg, #FFFFFF, #FFFFFF 2px, transparent 2px, transparent 5px, #FFFFFF 5px, #FFFFFF 8px);
}

.cabin-cta-btn {
  display: block;
  text-align: center;
  background: rgba(255, 255, 255, 0.08);
  color: #FFFFFF;
  border: 1px solid rgba(255, 255, 255, 0.15);
  padding: 11px;
  border-radius: 6px;
  font-family: var(--font-heading);
  font-size: 1rem;
  font-weight: 800;
  text-decoration: none;
  letter-spacing: 0.5px;
  transition: var(--transition-fast);
}

.cabin-card.featured .cabin-cta-btn,
.cabin-cta-btn.highlight {
  background: var(--airport-yellow);
  color: #000;
  border-color: #FFE066;
  box-shadow: 0 4px 15px var(--airport-yellow-glow);
}

.cabin-cta-btn:hover {
  background: #FFFFFF;
  color: #000;
}

.cabin-card.featured .cabin-cta-btn:hover {
  background: #FFF080;
  box-shadow: 0 6px 20px rgba(255, 208, 0, 0.7);
}

/* 核心优势板块 (Core Advantages) */
.advantages-section {
  padding: 70px 0;
  background: rgba(10, 13, 19, 0.7);
  border-top: 1px solid var(--border-subtle);
  border-bottom: 1px solid var(--border-subtle);
}

.advantages-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-top: 40px;
}

.adv-card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: 10px;
  padding: 28px 24px;
  position: relative;
  transition: var(--transition-normal);
}

.adv-card:hover {
  border-color: var(--border-bright);
  transform: translateY(-4px);
  background: var(--bg-card-hover);
}

.adv-icon-wrap {
  width: 52px;
  height: 52px;
  background: rgba(255, 208, 0, 0.08);
  border: 1px solid rgba(255, 208, 0, 0.25);
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
}

.adv-icon-wrap svg {
  width: 28px;
  height: 28px;
  fill: var(--airport-yellow);
}

.adv-title {
  font-family: var(--font-heading);
  font-size: 1.3rem;
  font-weight: 700;
  color: #FFFFFF;
  margin-bottom: 10px;
}

.adv-desc {
  font-size: 0.92rem;
  color: var(--text-muted);
  line-height: 1.6;
}

/* ===================================================================
   板块 5：常见问题 FAQ 与知识库引导板块
   =================================================================== */
.faq-section {
  padding: 70px 0;
}

.faq-wrapper {
  max-width: 860px;
  margin: 30px auto 0;
}

.faq-item {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: 8px;
  margin-bottom: 14px;
  overflow: hidden;
  transition: var(--transition-fast);
}

.faq-item:hover {
  border-color: rgba(255, 255, 255, 0.2);
}

.faq-item.active {
  border-color: var(--airport-yellow);
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.5);
}

.faq-question {
  padding: 20px 24px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  cursor: pointer;
  user-select: none;
}

.faq-q-text {
  font-family: var(--font-heading);
  font-size: 1.1rem;
  font-weight: 700;
  color: #FFFFFF;
  display: flex;
  align-items: center;
  gap: 12px;
}

.faq-q-text span {
  font-family: var(--font-fids);
  color: var(--airport-yellow);
  font-size: 0.85rem;
}

.faq-chevron {
  width: 20px;
  height: 20px;
  fill: var(--text-muted);
  transition: transform 0.3s ease;
}

.faq-item.active .faq-chevron {
  transform: rotate(180deg);
  fill: var(--airport-yellow);
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.35s ease-out;
  background: rgba(13, 17, 23, 0.7);
  border-top: 1px solid transparent;
}

.faq-item.active .faq-answer {
  border-top-color: var(--border-subtle);
}

.faq-answer-inner {
  padding: 20px 24px;
  font-size: 0.95rem;
  color: #CBD5E1;
  line-height: 1.7;
}

/* 知识库引导大厅 Banner (Knowledge Hub Terminal) - 独立划板块 */
.kb-entry-section {
  padding: 60px 0;
  position: relative;
}

.kb-banner-card {
  background: linear-gradient(135deg, #131A26 0%, #0E131C 100%);
  border: 2px solid var(--border-green);
  border-radius: 14px;
  padding: 40px;
  position: relative;
  overflow: hidden;
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.6);
}

.kb-banner-card::before {
  content: '';
  position: absolute;
  top: -50%;
  right: -20%;
  width: 400px;
  height: 400px;
  background: radial-gradient(circle, var(--mint-green-glow) 0%, transparent 70%);
  pointer-events: none;
}

.kb-banner-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr;
  gap: 30px;
  align-items: center;
}

.kb-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(0, 230, 118, 0.12);
  border: 1px solid rgba(0, 230, 118, 0.3);
  color: var(--mint-green);
  font-family: var(--font-fids);
  font-size: 0.8rem;
  font-weight: 700;
  padding: 4px 12px;
  border-radius: 20px;
  margin-bottom: 16px;
}

.kb-title {
  font-family: var(--font-heading);
  font-size: 2.2rem;
  font-weight: 800;
  color: #FFFFFF;
  margin-bottom: 14px;
}

.kb-desc {
  font-size: 1rem;
  color: #94A3B8;
  line-height: 1.6;
  margin-bottom: 24px;
}

.kb-highlights {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  margin-bottom: 24px;
}

.kb-chip {
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.1);
  padding: 6px 14px;
  border-radius: 4px;
  font-family: var(--font-fids);
  font-size: 0.8rem;
  color: #E2E8F0;
}

.kb-banner-btn {
  background: var(--mint-green);
  color: #000;
  font-family: var(--font-heading);
  font-weight: 800;
  font-size: 1.05rem;
  padding: 13px 30px;
  border-radius: 6px;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  box-shadow: 0 0 20px var(--mint-green-glow);
  transition: var(--transition-fast);
}

.kb-banner-btn:hover {
  background: #39FF88;
  transform: translateY(-2px);
  box-shadow: 0 0 30px rgba(0, 230, 118, 0.8);
}

.kb-preview-board {
  background: #080B10;
  border: 1px solid #1E2738;
  border-radius: 8px;
  padding: 20px;
}

.kb-preview-title {
  font-family: var(--font-fids);
  font-size: 0.8rem;
  color: var(--text-dim);
  text-transform: uppercase;
  margin-bottom: 14px;
  display: flex;
  justify-content: space-between;
}

.kb-preview-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.kb-preview-item a {
  display: flex;
  align-items: center;
  justify-content: space-between;
  text-decoration: none;
  color: #CBD5E1;
  font-size: 0.88rem;
  padding: 8px 10px;
  border-radius: 4px;
  background: rgba(255, 255, 255, 0.02);
  transition: var(--transition-fast);
  border-left: 2px solid transparent;
}

.kb-preview-item a:hover {
  background: rgba(0, 230, 118, 0.08);
  color: var(--mint-green);
  border-left-color: var(--mint-green);
}

/* ===================================================================
   板块 6：用户评价板块 (Passenger Testimonials)
   =================================================================== */
.testimonials-section {
  padding: 70px 0;
}

.testimonials-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 22px;
  margin-top: 35px;
}

.passenger-card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: 10px;
  padding: 24px;
  display: flex;
  flex-direction: column;
  position: relative;
  transition: var(--transition-normal);
}

.passenger-card:hover {
  border-color: rgba(255, 208, 0, 0.3);
  transform: translateY(-4px);
}

.passenger-header {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-bottom: 16px;
}

.passenger-avatar {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: #18202E;
  border: 1px solid var(--border-bright);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-heading);
  font-weight: 800;
  color: var(--airport-yellow);
}

.passenger-info {
  display: flex;
  flex-direction: column;
}

.passenger-name {
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 1.05rem;
  color: #FFFFFF;
}

.passenger-tier {
  font-family: var(--font-fids);
  font-size: 0.72rem;
  color: var(--airport-yellow);
}

.passenger-rating {
  margin-bottom: 12px;
  color: var(--airport-yellow);
  font-size: 0.85rem;
  letter-spacing: 2px;
}

.passenger-comment {
  font-size: 0.92rem;
  color: #CBD5E1;
  line-height: 1.6;
  flex: 1;
}

.passenger-footer {
  margin-top: 16px;
  padding-top: 12px;
  border-top: 1px dashed rgba(255, 255, 255, 0.08);
  display: flex;
  justify-content: space-between;
  font-family: var(--font-fids);
  font-size: 0.72rem;
  color: var(--text-dim);
}

/* 页脚 (Terminal Footer) */
.terminal-footer {
  background: #07090D;
  border-top: 1px solid #1C2331;
  padding: 50px 0 25px;
  position: relative;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.8fr 1fr 1fr 1.2fr;
  gap: 30px;
  margin-bottom: 40px;
}

.footer-col-desc {
  font-size: 0.88rem;
  color: var(--text-muted);
  line-height: 1.6;
  margin: 15px 0 20px;
}

.footer-col-title {
  font-family: var(--font-heading);
  font-size: 1rem;
  font-weight: 700;
  color: #FFFFFF;
  margin-bottom: 16px;
  letter-spacing: 1px;
  text-transform: uppercase;
}

.footer-links {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.footer-links a {
  color: var(--text-muted);
  text-decoration: none;
  font-size: 0.88rem;
  transition: var(--transition-fast);
}

.footer-links a:hover {
  color: var(--airport-yellow);
  padding-left: 4px;
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.05);
  padding-top: 24px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-family: var(--font-fids);
  font-size: 0.78rem;
  color: var(--text-dim);
  flex-wrap: wrap;
  gap: 15px;
}

/* ===================================================================
   知识库文章页面公用样式 (Knowledge Base Article Styles)
   =================================================================== */
.kb-article-layout {
  padding: 40px 0 80px;
}

.kb-breadcrumb {
  display: flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-fids);
  font-size: 0.82rem;
  color: var(--text-dim);
  margin-bottom: 25px;
}

.kb-breadcrumb a {
  color: var(--airport-yellow);
  text-decoration: none;
}

.kb-article-container {
  display: grid;
  grid-template-columns: 280px 1fr;
  gap: 40px;
  align-items: flex-start;
}

.kb-sidebar {
  position: sticky;
  top: 90px;
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: 10px;
  padding: 22px;
}

.kb-sidebar-title {
  font-family: var(--font-heading);
  font-size: 0.95rem;
  font-weight: 700;
  color: #FFFFFF;
  margin-bottom: 14px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  padding-bottom: 8px;
}

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

.kb-toc a {
  color: var(--text-muted);
  text-decoration: none;
  font-size: 0.85rem;
  line-height: 1.4;
  display: block;
  padding: 5px 8px;
  border-radius: 4px;
  transition: var(--transition-fast);
}

.kb-toc a:hover {
  color: var(--airport-yellow);
  background: rgba(255, 208, 0, 0.08);
}

.kb-article-content {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: 12px;
  padding: 45px;
}

.article-header {
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  padding-bottom: 25px;
  margin-bottom: 30px;
}

.article-tags-wrap {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  margin-bottom: 15px;
}

.article-tag {
  background: rgba(255, 208, 0, 0.1);
  color: var(--airport-yellow);
  border: 1px solid rgba(255, 208, 0, 0.25);
  font-family: var(--font-fids);
  font-size: 0.75rem;
  font-weight: 700;
  padding: 3px 10px;
  border-radius: 3px;
}

.article-title {
  font-family: var(--font-heading);
  font-size: 2.2rem;
  font-weight: 800;
  color: #FFFFFF;
  line-height: 1.3;
  margin-bottom: 16px;
}

.article-meta {
  display: flex;
  gap: 20px;
  font-family: var(--font-fids);
  font-size: 0.8rem;
  color: var(--text-dim);
}

.article-meta span strong {
  color: var(--text-muted);
}

/* 文章正文排版 */
.article-body h2 {
  font-family: var(--font-heading);
  font-size: 1.55rem;
  color: #FFFFFF;
  margin: 40px 0 16px;
  padding-bottom: 8px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  display: flex;
  align-items: center;
  gap: 10px;
}

.article-body h2::before {
  content: '';
  display: inline-block;
  width: 4px;
  height: 20px;
  background: var(--airport-yellow);
  border-radius: 2px;
}

.article-body h3 {
  font-family: var(--font-heading);
  font-size: 1.25rem;
  color: var(--airport-yellow);
  margin: 28px 0 12px;
}

.article-body p {
  color: #CBD5E1;
  font-size: 1rem;
  line-height: 1.8;
  margin-bottom: 18px;
}

.article-body ul, 
.article-body ol {
  color: #CBD5E1;
  padding-left: 24px;
  margin-bottom: 22px;
  line-height: 1.8;
}

.article-body li {
  margin-bottom: 8px;
}

.article-body blockquote {
  background: rgba(255, 208, 0, 0.05);
  border-left: 3px solid var(--airport-yellow);
  padding: 16px 20px;
  margin: 22px 0;
  color: #E2E8F0;
  border-radius: 0 6px 6px 0;
}

.article-body pre {
  background: #090D14;
  border: 1px solid #1E2838;
  border-radius: 8px;
  padding: 18px;
  overflow-x: auto;
  margin: 20px 0;
  font-family: var(--font-fids);
  font-size: 0.88rem;
  color: #38BDF8;
}

.article-body code {
  font-family: var(--font-fids);
  background: rgba(255, 255, 255, 0.06);
  padding: 2px 6px;
  border-radius: 4px;
  color: var(--airport-yellow);
  font-size: 0.88em;
}

.article-table {
  width: 100%;
  border-collapse: collapse;
  margin: 25px 0;
  font-size: 0.92rem;
}

.article-table th,
.article-table td {
  padding: 12px 16px;
  border: 1px solid #1E2738;
  text-align: left;
}

.article-table th {
  background: #101622;
  color: var(--airport-yellow);
  font-family: var(--font-fids);
  font-weight: 700;
}

.article-table td {
  background: rgba(16, 22, 34, 0.5);
  color: #CBD5E1;
}

.article-cta-box {
  background: linear-gradient(135deg, #182230 0%, #101622 100%);
  border: 1px solid var(--border-bright);
  border-radius: 10px;
  padding: 30px;
  margin: 40px 0 20px;
  text-align: center;
}

.article-cta-title {
  font-family: var(--font-heading);
  font-size: 1.5rem;
  font-weight: 800;
  color: #FFFFFF;
  margin-bottom: 10px;
}

.article-cta-desc {
  color: #94A3B8;
  margin-bottom: 20px;
}

/* ===================================================================
   响应式断点适配 (Responsive Media Queries)
   =================================================================== */
@media (max-width: 1024px) {
  .pricing-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .radar-telemetry-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .advantages-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .kb-banner-grid {
    grid-template-columns: 1fr;
  }
  .kb-article-container {
    grid-template-columns: 1fr;
  }
  .kb-sidebar {
    position: static;
    margin-bottom: 25px;
  }
  .footer-grid {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 768px) {
  .hero-title {
    font-size: 2.2rem;
  }
  .hero-stats-row {
    grid-template-columns: repeat(2, 1fr);
  }
  .nav-links {
    display: none;
  }
  .nav-mobile-toggle {
    display: block;
  }
  .nav-links.open {
    display: flex;
    flex-direction: column;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: #0E131C;
    border-bottom: 1px solid var(--border-subtle);
    padding: 20px;
  }
  .fids-header-row,
  .fids-flight-row {
    grid-template-columns: 110px 1.2fr 80px 100px;
  }
  .route-desc-cell,
  .fids-header-row > div:nth-child(5) {
    display: none;
  }
  .pricing-grid {
    grid-template-columns: 1fr;
  }
  .radar-telemetry-grid {
    grid-template-columns: 1fr;
  }
  .advantages-grid {
    grid-template-columns: 1fr;
  }
  .testimonials-grid {
    grid-template-columns: 1fr;
  }
  .footer-grid {
    grid-template-columns: 1fr;
  }
  .kb-article-content {
    padding: 25px 18px;
  }
  .article-title {
    font-size: 1.6rem;
  }
}