@import url('https://fonts.googleapis.com/css2?family=Archivo:wght@500;800;900&family=JetBrains+Mono:wght@400;600;700&display=swap');

:root {
  --bg-night: #0B0E1A;
  --bg-panel: #131829;
  --bg-panel-elevated: #171E33;
  --text-main: #F2F4F8;
  --text-secondary: rgba(242, 244, 248, 0.74);
  --text-muted: rgba(242, 244, 248, 0.48);
  --border-solid: rgba(242, 244, 248, 0.12);
  --border-dashed: rgba(242, 244, 248, 0.2);
  --amber-runway: #FFB627;
  --amber-dim: rgba(255, 182, 39, 0.12);
  --amber-border: rgba(255, 182, 39, 0.45);
  --radius-sm: 4px;
  --font-sans: 'Archivo', -apple-system, BlinkMacSystemFont, 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', sans-serif;
  --font-mono: 'JetBrains Mono', 'SFMono-Regular', Consolas, 'Liberation Mono', Menlo, monospace;
  --container-width: 1200px;
}

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

html {
  scroll-behavior: smooth;
  background-color: var(--bg-night);
  color: var(--text-main);
  font-family: var(--font-sans);
  font-weight: 500;
  font-size: 16px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

body {
  background-color: var(--bg-night);
  background-image: 
    radial-gradient(circle at 50% 0%, rgba(19, 24, 41, 0.9) 0%, rgba(11, 14, 26, 1) 70%),
    linear-gradient(to right, rgba(242, 244, 248, 0.02) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(242, 244, 248, 0.02) 1px, transparent 1px);
  background-size: 100% 100%, 48px 48px, 48px 48px;
  color: var(--text-main);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  overflow-x: hidden;
}

/* Typography Rules */
h1, h2, h3, h4 {
  font-family: var(--font-sans);
  font-weight: 900;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  line-height: 1.25;
  color: var(--text-main);
}

.mono, code, .flight-data {
  font-family: var(--font-mono);
}

a {
  color: var(--text-main);
  text-decoration: none;
  transition: color 0.22s ease;
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

/* Container & Layout */
.container {
  width: 100%;
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 24px;
}

.section {
  padding: 96px 0;
  border-bottom: 1px dashed var(--border-dashed);
  position: relative;
}

.section-header {
  margin-bottom: 56px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.section-code {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  letter-spacing: 0.12em;
  color: var(--text-muted);
  text-transform: uppercase;
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

.section-title {
  font-size: 2.1rem;
  font-weight: 900;
  letter-spacing: 0.04em;
}

.section-desc {
  color: var(--text-secondary);
  max-width: 680px;
  font-size: 1rem;
}

/* Live Indicator (Amber strictly allowed for live indicators) */
.live-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background-color: var(--amber-runway);
  box-shadow: 0 0 10px var(--amber-runway);
  display: inline-block;
  animation: pulse-beacon 2s infinite ease-in-out;
}

@keyframes pulse-beacon {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.45; transform: scale(0.88); }
}

/* Hover Amber Underline Sweep for Interactive Links */
.sweep-link {
  position: relative;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding-bottom: 3px;
  color: var(--text-main);
}

.sweep-link::after {
  content: '';
  position: absolute;
  left: 0;
  bottom: 0;
  width: 100%;
  height: 2px;
  background-color: var(--amber-runway);
  transform: scaleX(0);
  transform-origin: right center;
  transition: transform 0.26s cubic-bezier(0.22, 1, 0.36, 1);
}

.sweep-link:hover {
  color: var(--amber-runway);
}

.sweep-link:hover::after {
  transform: scaleX(1);
  transform-origin: left center;
}

/* Header & Navigation */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background-color: rgba(11, 14, 26, 0.92);
  backdrop-filter: blur(12px);
  border-bottom: 1px dashed var(--border-dashed);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 76px;
  gap: 20px;
}

.brand-logo {
  display: inline-flex;
  align-items: center;
  gap: 14px;
  text-decoration: none;
}

.brand-logo svg {
  width: 42px;
  height: 42px;
  flex-shrink: 0;
}

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

.brand-name {
  font-weight: 900;
  font-size: 1.2rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  line-height: 1.1;
  color: var(--text-main);
}

.brand-sub {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--text-muted);
  letter-spacing: 0.08em;
  margin-top: 2px;
}

.main-nav {
  display: flex;
  align-items: center;
  gap: 26px;
  flex-wrap: wrap;
}

.nav-item {
  font-size: 0.92rem;
  font-weight: 500;
  color: var(--text-secondary);
  padding: 6px 0;
}

.nav-item.nav-dispatch {
  font-family: var(--font-mono);
  padding: 4px 10px;
  border: 1px dashed var(--border-dashed);
  border-radius: var(--radius-sm);
}

.nav-item.nav-dispatch:hover {
  border-color: var(--amber-runway);
}

/* Interactive Buttons (Amber used for interactive elements) */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  min-height: 48px;
  padding: 12px 24px;
  border-radius: var(--radius-sm);
  font-family: var(--font-sans);
  font-weight: 800;
  font-size: 0.95rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  cursor: pointer;
  transition: all 0.22s ease;
  text-decoration: none;
  border: 1px solid transparent;
}

.btn-primary {
  background-color: var(--amber-runway);
  color: #0B0E1A;
  border-color: var(--amber-runway);
  box-shadow: 0 4px 20px rgba(255, 182, 39, 0.22);
}

.btn-primary:hover {
  background-color: #ffc44d;
  border-color: #ffc44d;
  box-shadow: 0 6px 28px rgba(255, 182, 39, 0.38);
  transform: translateY(-1px);
  color: #0B0E1A;
}

.btn-secondary {
  background-color: var(--bg-panel);
  color: var(--text-main);
  border: 1px dashed var(--amber-border);
}

.btn-secondary:hover {
  background-color: var(--amber-dim);
  border-color: var(--amber-runway);
  color: var(--amber-runway);
  transform: translateY(-1px);
}

.btn-sm {
  min-height: 40px;
  padding: 8px 18px;
  font-size: 0.85rem;
}

/* Hero Section */
.hero-section {
  padding: 104px 0 96px;
  border-bottom: 1px dashed var(--border-dashed);
  position: relative;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.25fr 0.75fr;
  gap: 48px;
  align-items: center;
}

.telemetry-bar {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  padding: 6px 14px;
  background-color: var(--bg-panel);
  border: 1px dashed var(--border-dashed);
  border-radius: var(--radius-sm);
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--text-secondary);
  margin-bottom: 24px;
}

.hero-title {
  font-size: 3.1rem;
  font-weight: 900;
  letter-spacing: 0.04em;
  line-height: 1.18;
  margin-bottom: 18px;
}

.hero-subtitle {
  font-size: 1.3rem;
  font-weight: 800;
  letter-spacing: 0.04em;
  color: var(--text-main);
  margin-bottom: 16px;
  text-transform: uppercase;
}

.hero-intro {
  font-size: 1.02rem;
  color: var(--text-secondary);
  margin-bottom: 32px;
  max-width: 640px;
  line-height: 1.75;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  margin-bottom: 36px;
}

.hero-metrics {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  padding-top: 24px;
  border-top: 1px dashed var(--border-dashed);
}

.metric-item {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.metric-value {
  font-family: var(--font-mono);
  font-size: 1.45rem;
  font-weight: 700;
  color: var(--text-main);
}

.metric-label {
  font-family: var(--font-mono);
  font-size: 0.76rem;
  color: var(--text-muted);
  text-transform: uppercase;
}

/* Flight Radar / Telemetry Panel */
.radar-panel {
  background-color: var(--bg-panel);
  border: 1px solid var(--border-solid);
  border-radius: var(--radius-sm);
  padding: 24px;
  position: relative;
}

.radar-panel-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-bottom: 14px;
  margin-bottom: 18px;
  border-bottom: 1px dashed var(--border-dashed);
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--text-secondary);
}

.radar-visual {
  margin-bottom: 18px;
  border: 1px dashed var(--border-dashed);
  border-radius: var(--radius-sm);
  background-color: var(--bg-night);
  padding: 12px;
}

.flight-board-mini {
  display: flex;
  flex-direction: column;
  gap: 10px;
  font-family: var(--font-mono);
  font-size: 0.82rem;
}

.flight-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 8px 10px;
  background-color: rgba(11, 14, 26, 0.65);
  border: 1px solid var(--border-solid);
  border-radius: var(--radius-sm);
  transition: border-color 0.2s ease;
}

.flight-row:hover {
  border-color: var(--amber-runway);
}

.status-live {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: var(--amber-runway);
  font-weight: 600;
}

/* 3 Core Advantage Cards */
.cards-grid-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.panel-card {
  background-color: var(--bg-panel);
  border: 1px solid var(--border-solid);
  border-radius: var(--radius-sm);
  padding: 28px;
  display: flex;
  flex-direction: column;
  gap: 18px;
  transition: border-color 0.22s ease, transform 0.22s ease;
}

.panel-card:hover {
  border-color: var(--amber-runway);
  transform: translateY(-2px);
}

.card-visual {
  background-color: var(--bg-night);
  border: 1px dashed var(--border-dashed);
  border-radius: var(--radius-sm);
  padding: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  height: 150px;
}

.card-visual img {
  max-height: 118px;
  width: auto;
}

.card-meta {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--text-muted);
  display: flex;
  justify-content: space-between;
  border-bottom: 1px dashed var(--border-dashed);
  padding-bottom: 10px;
}

.card-title {
  font-size: 1.22rem;
  font-weight: 800;
}

.card-text {
  color: var(--text-secondary);
  font-size: 0.94rem;
  line-height: 1.65;
}

/* Streaming & AI Support Matrix */
.media-ai-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}

.media-card {
  background-color: var(--bg-panel);
  border: 1px solid var(--border-solid);
  border-radius: var(--radius-sm);
  padding: 22px;
  display: flex;
  flex-direction: column;
  gap: 14px;
  transition: border-color 0.22s ease;
}

.media-card:hover {
  border-color: var(--amber-runway);
}

.media-card-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.media-icon-wrap {
  width: 52px;
  height: 52px;
  background-color: var(--bg-night);
  border: 1px dashed var(--border-dashed);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 8px;
}

.media-badge {
  font-family: var(--font-mono);
  font-size: 0.74rem;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 8px;
  background-color: var(--bg-night);
  border: 1px solid var(--border-solid);
  border-radius: var(--radius-sm);
  color: var(--text-main);
}

.media-name {
  font-size: 1.1rem;
  font-weight: 800;
}

.media-desc {
  font-size: 0.88rem;
  color: var(--text-secondary);
}

.media-routes {
  margin-top: auto;
  padding-top: 12px;
  border-top: 1px dashed var(--border-dashed);
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--text-muted);
}

/* Pricing Cards & Data Comparison Table */
.pricing-cards-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  margin-bottom: 48px;
}

.pricing-card {
  background-color: var(--bg-panel);
  border: 1px solid var(--border-solid);
  border-radius: var(--radius-sm);
  padding: 26px 22px;
  display: flex;
  flex-direction: column;
  gap: 16px;
  position: relative;
  transition: border-color 0.22s ease, transform 0.22s ease;
}

.pricing-card:hover {
  border-color: var(--amber-runway);
  transform: translateY(-2px);
}

.pricing-card.featured {
  background-color: var(--bg-panel-elevated);
  border: 1px dashed var(--border-dashed);
}

.plan-code {
  font-family: var(--font-mono);
  font-size: 0.76rem;
  color: var(--text-muted);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.plan-name {
  font-size: 1.25rem;
  font-weight: 900;
}

.plan-price-box {
  padding: 14px 0;
  border-top: 1px dashed var(--border-dashed);
  border-bottom: 1px dashed var(--border-dashed);
  display: flex;
  align-items: baseline;
  gap: 6px;
}

.price-currency {
  font-family: var(--font-mono);
  font-size: 1.1rem;
  color: var(--text-secondary);
}

.price-amount {
  font-family: var(--font-mono);
  font-size: 2.35rem;
  font-weight: 700;
  color: var(--text-main);
  line-height: 1;
}

.price-period {
  font-family: var(--font-mono);
  font-size: 0.82rem;
  color: var(--text-muted);
}

.plan-features {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 10px;
  font-size: 0.9rem;
  color: var(--text-secondary);
  margin-bottom: 12px;
  flex-grow: 1;
}

.plan-features li {
  display: flex;
  align-items: flex-start;
  gap: 8px;
}

.plan-features li::before {
  content: '>';
  font-family: var(--font-mono);
  color: var(--text-muted);
  font-weight: 700;
}

/* Data Comparison Table (Amber Row Highlight Rule) */
.table-wrapper {
  width: 100%;
  overflow-x: auto;
  background-color: var(--bg-panel);
  border: 1px solid var(--border-solid);
  border-radius: var(--radius-sm);
}

.flight-table {
  width: 100%;
  border-collapse: collapse;
  text-align: left;
  min-width: 720px;
}

.flight-table th,
.flight-table td {
  padding: 16px 20px;
  border-bottom: 1px dashed var(--border-dashed);
}

.flight-table th {
  font-family: var(--font-sans);
  font-weight: 800;
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--text-muted);
  background-color: rgba(11, 14, 26, 0.55);
}

.flight-table td {
  font-size: 0.92rem;
  color: var(--text-secondary);
  transition: background-color 0.18s ease, color 0.18s ease;
}

.flight-table td.mono-cell {
  font-family: var(--font-mono);
  color: var(--text-main);
}

.flight-table tbody tr {
  border-left: 3px solid transparent;
  transition: all 0.18s ease;
}

.flight-table tbody tr:hover {
  background-color: var(--amber-dim);
  border-left: 3px solid var(--amber-runway);
}

.flight-table tbody tr:hover td {
  color: var(--text-main);
}

.flight-table tbody tr:hover td:first-child {
  color: var(--amber-runway);
  font-weight: 700;
}

/* Reviews Section */
.reviews-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.review-card {
  background-color: var(--bg-panel);
  border: 1px solid var(--border-solid);
  border-radius: var(--radius-sm);
  padding: 26px;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.review-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-bottom: 12px;
  border-bottom: 1px dashed var(--border-dashed);
}

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

.reviewer-name {
  font-weight: 800;
  font-size: 0.98rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.reviewer-role {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--text-muted);
}

.review-score {
  font-family: var(--font-mono);
  font-size: 0.82rem;
  padding: 4px 8px;
  background-color: var(--bg-night);
  border: 1px dashed var(--border-dashed);
  border-radius: var(--radius-sm);
}

/* FAQ Section */
.faq-list {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
}

.faq-item {
  background-color: var(--bg-panel);
  border: 1px solid var(--border-solid);
  border-radius: var(--radius-sm);
  padding: 24px;
  transition: border-color 0.2s ease;
}

.faq-item:hover {
  border-color: var(--amber-runway);
}

.faq-q {
  font-size: 1.05rem;
  font-weight: 800;
  margin-bottom: 10px;
  display: flex;
  align-items: flex-start;
  gap: 10px;
}

.faq-q-code {
  font-family: var(--font-mono);
  color: var(--text-muted);
  font-size: 0.85rem;
  flex-shrink: 0;
  margin-top: 2px;
}

.faq-a {
  font-size: 0.92rem;
  color: var(--text-secondary);
  line-height: 1.7;
}

/* Footer (Strictly 4 titles opening in new pages) */
.site-footer {
  margin-top: auto;
  padding: 48px 0;
  background-color: var(--bg-panel);
  border-top: 1px dashed var(--border-dashed);
}

.footer-only-four {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 48px;
  flex-wrap: wrap;
}

.footer-link {
  font-family: var(--font-sans);
  font-weight: 800;
  font-size: 0.98rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--text-main);
  padding: 8px 4px;
}

/* Secondary Pages & SEO Articles Layout */
.page-hero {
  padding: 64px 0 48px;
  border-bottom: 1px dashed var(--border-dashed);
}

.articles-layout {
  display: flex;
  flex-direction: column;
  gap: 36px;
  padding: 64px 0;
}

.seo-article-card {
  background-color: var(--bg-panel);
  border: 1px solid var(--border-solid);
  border-radius: var(--radius-sm);
  padding: 36px;
  transition: border-color 0.22s ease;
}

.seo-article-card:hover {
  border-color: var(--amber-border);
}

.article-meta {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--text-muted);
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  padding-bottom: 14px;
  margin-bottom: 18px;
  border-bottom: 1px dashed var(--border-dashed);
}

.article-title {
  font-size: 1.5rem;
  font-weight: 900;
  margin-bottom: 18px;
  line-height: 1.35;
}

.article-content {
  color: var(--text-secondary);
  font-size: 0.98rem;
  line-height: 1.8;
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.article-content h3 {
  font-size: 1.12rem;
  margin-top: 10px;
  color: var(--text-main);
}

.article-content a {
  color: var(--amber-runway);
  border-bottom: 1px dashed var(--amber-runway);
  padding-bottom: 1px;
  font-weight: 800;
}

.article-content a:hover {
  background-color: var(--amber-dim);
}

.doc-box {
  background-color: var(--bg-panel);
  border: 1px solid var(--border-solid);
  border-radius: var(--radius-sm);
  padding: 40px;
  margin: 56px 0;
  display: flex;
  flex-direction: column;
  gap: 28px;
}

.doc-section {
  padding-bottom: 24px;
  border-bottom: 1px dashed var(--border-dashed);
}

.doc-section:last-child {
  border-bottom: none;
  padding-bottom: 0;
}

.doc-section h2 {
  font-size: 1.35rem;
  margin-bottom: 12px;
}

.doc-section p, .doc-section li {
  color: var(--text-secondary);
  font-size: 0.96rem;
  line-height: 1.75;
}

.doc-section ul {
  padding-left: 20px;
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-top: 10px;
}

/* Responsive Media Queries (@media) */
@media (max-width: 1024px) {
  .hero-grid {
    grid-template-columns: 1fr;
    gap: 36px;
  }
  .cards-grid-3 {
    grid-template-columns: 1fr;
  }
  .media-ai-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .pricing-cards-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .reviews-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 768px) {
  .section {
    padding: 64px 0;
  }
  .header-inner {
    flex-direction: column;
    align-items: stretch;
    padding: 14px 0;
    gap: 14px;
  }
  .brand-logo {
    justify-content: space-between;
  }
  .main-nav {
    gap: 14px;
    justify-content: flex-start;
  }
  .hero-section {
    padding: 56px 0 64px;
  }
  .hero-title {
    font-size: 2.1rem;
  }
  .hero-subtitle {
    font-size: 1.08rem;
  }
  .hero-actions {
    flex-direction: column;
  }
  .hero-actions .btn,
  .btn {
    width: 100%;
    min-height: 50px;
    justify-content: center;
  }
  .hero-metrics {
    grid-template-columns: 1fr;
    gap: 14px;
  }
  .media-ai-grid,
  .pricing-cards-grid,
  .faq-list {
    grid-template-columns: 1fr;
  }
  .footer-only-four {
    flex-direction: column;
    gap: 20px;
  }
  .seo-article-card,
  .doc-box {
    padding: 24px 18px;
  }
}