/* ==========================================================================
   饿饭cc云 (efanyun.xyz) - Stealth Telemetry Design System
   Style: 深空遥测与隐形战机风
   Colors: Deep Titanium (#0A0E17), Midnight Black (#05070B), Electric Cyan (#00E5FF)
   ========================================================================== */

@import url('https://fonts.googleapis.com/css2?family=Orbitron:wght@400;600;800;900&family=Rajdhani:wght@500;600;700&family=Noto+Sans+SC:wght@300;400;500;700&display=swap');

:root {
  --bg-dark: #05070B;
  --bg-card: rgba(12, 18, 28, 0.75);
  --bg-card-hover: rgba(18, 27, 42, 0.85);
  --titanium-dark: #0A0E17;
  --titanium-border: rgba(0, 229, 255, 0.18);
  --titanium-border-bright: rgba(0, 229, 255, 0.5);
  --cyan-glow: #00E5FF;
  --cyan-dim: rgba(0, 229, 255, 0.2);
  --cyan-ghost: rgba(0, 229, 255, 0.05);
  --amber-alert: #FF9F1C;
  --red-tactical: #FF2A6D;
  --green-online: #00FF88;
  --text-main: #E2E8F0;
  --text-muted: #8E9BAE;
  --text-bright: #FFFFFF;
  --font-hud: 'Orbitron', 'Rajdhani', sans-serif;
  --font-body: 'Noto Sans SC', system-ui, -apple-system, sans-serif;
  --radius-card: 6px;
  --transition-fast: all 0.2s cubic-bezier(0.16, 1, 0.3, 1);
  --transition-smooth: all 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}

/* Reset & Base Styles */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  cursor: default;
}

html {
  scroll-behavior: smooth;
  background-color: var(--bg-dark);
  color: var(--text-main);
  font-family: var(--font-body);
  overflow-x: hidden;
}

body {
  position: relative;
  background-color: var(--bg-dark);
  background-image: 
    radial-gradient(circle at 50% 0%, rgba(0, 229, 255, 0.08) 0%, transparent 60%),
    linear-gradient(rgba(0, 229, 255, 0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0, 229, 255, 0.03) 1px, transparent 1px);
  background-size: 100% 100%, 40px 40px, 40px 40px;
  background-position: 0 0, -1px -1px, -1px -1px;
  min-height: 100vh;
  line-height: 1.6;
}

/* Custom Jet Wing Cursor & Telemetry Trail */
#custom-cursor {
  position: fixed;
  top: 0;
  left: 0;
  width: 24px;
  height: 24px;
  pointer-events: none;
  z-index: 9999;
  transform: translate(-50%, -50%);
  transition: transform 0.08s ease-out;
  display: none;
}

@media (min-width: 992px) {
  #custom-cursor {
    display: block;
  }
}

#custom-cursor svg {
  width: 100%;
  height: 100%;
  filter: drop-shadow(0 0 6px var(--cyan-glow));
}

#cursor-canvas {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  pointer-events: none;
  z-index: 9998;
}

/* Utility HUD Components */
.hud-corner {
  position: relative;
}

.hud-corner::before,
.hud-corner::after {
  content: '';
  position: absolute;
  width: 10px;
  height: 10px;
  border-color: var(--cyan-glow);
  border-style: solid;
  pointer-events: none;
  opacity: 0.7;
}

.hud-corner::before {
  top: -2px;
  left: -2px;
  border-width: 2px 0 0 2px;
}

.hud-corner::after {
  bottom: -2px;
  right: -2px;
  border-width: 0 2px 2px 0;
}

.hud-tag {
  font-family: var(--font-hud);
  font-size: 0.72rem;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--cyan-glow);
  background: rgba(0, 229, 255, 0.08);
  border: 1px solid rgba(0, 229, 255, 0.3);
  padding: 3px 10px;
  border-radius: 2px;
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

/* LED Indicator Animation */
.led-indicator {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background-color: var(--green-online);
  box-shadow: 0 0 8px var(--green-online);
  animation: ledPulse 2s infinite ease-in-out;
}

.led-cyan {
  background-color: var(--cyan-glow);
  box-shadow: 0 0 8px var(--cyan-glow);
}

@keyframes ledPulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.4; transform: scale(0.85); }
}

/* Navigation Header */
.stealth-header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  background: rgba(5, 7, 11, 0.85);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--titanium-border);
}

.header-inner {
  max-width: 1300px;
  margin: 0 auto;
  padding: 12px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

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

.logo-hud-icon {
  width: 36px;
  height: 36px;
  border: 1px solid var(--cyan-glow);
  background: rgba(0, 229, 255, 0.1);
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  clip-path: polygon(25% 0%, 75% 0%, 100% 50%, 75% 100%, 25% 100%, 0% 50%);
}

.logo-hud-icon svg {
  width: 20px;
  height: 20px;
  fill: var(--cyan-glow);
}

.brand-text {
  font-family: var(--font-hud);
  font-size: 1.25rem;
  font-weight: 800;
  color: var(--text-bright);
  letter-spacing: 1px;
}

.brand-text span {
  color: var(--cyan-glow);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 28px;
  list-style: none;
}

.nav-link {
  color: var(--text-muted);
  text-decoration: none;
  font-size: 0.9rem;
  font-weight: 500;
  letter-spacing: 0.5px;
  transition: var(--transition-fast);
  position: relative;
}

.nav-link:hover, .nav-link.active {
  color: var(--cyan-glow);
}

.nav-link:hover::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 100%;
  height: 2px;
  background: var(--cyan-glow);
  box-shadow: 0 0 8px var(--cyan-glow);
}

.header-cta {
  display: flex;
  align-items: center;
  gap: 16px;
}

/* Primary Telemetry CTA Button */
.btn-stealth {
  font-family: var(--font-hud);
  font-size: 0.85rem;
  font-weight: 700;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  color: var(--bg-dark);
  background: var(--cyan-glow);
  padding: 10px 22px;
  border: 1px solid var(--cyan-glow);
  clip-path: polygon(10px 0, 100% 0, 100% calc(100% - 10px), calc(100% - 10px) 100%, 0 100%, 0 10px);
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  transition: var(--transition-fast);
  box-shadow: 0 0 15px rgba(0, 229, 255, 0.4);
}

.btn-stealth:hover {
  background: #ffffff;
  border-color: #ffffff;
  color: #000;
  box-shadow: 0 0 25px rgba(0, 229, 255, 0.8);
  transform: translateY(-2px);
}

.btn-stealth-outline {
  background: transparent;
  color: var(--cyan-glow);
  border: 1px solid var(--cyan-glow);
  box-shadow: none;
}

.btn-stealth-outline:hover {
  background: rgba(0, 229, 255, 0.15);
  color: #ffffff;
}

/* Mobile Nav Toggle */
.mobile-toggle {
  display: none;
  background: none;
  border: 1px solid var(--titanium-border);
  color: var(--cyan-glow);
  font-size: 1.5rem;
  padding: 6px 10px;
}

/* Container */
.container {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 24px;
}

/* Hero Telemetry Section */
.hero-section {
  padding-top: 140px;
  padding-bottom: 90px;
  position: relative;
  overflow: hidden;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 40px;
  align-items: center;
}

.hero-badge-wrap {
  margin-bottom: 20px;
}

.hero-title {
  font-family: var(--font-hud);
  font-size: 2.8rem;
  font-weight: 900;
  line-height: 1.2;
  color: var(--text-bright);
  margin-bottom: 20px;
  text-shadow: 0 0 20px rgba(0,0,0,0.8);
}

.hero-title .highlight {
  color: var(--cyan-glow);
  background: linear-gradient(180deg, #FFFFFF 0%, var(--cyan-glow) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero-subtitle {
  font-size: 1.1rem;
  color: var(--text-muted);
  margin-bottom: 36px;
  max-width: 600px;
}

.hero-actions {
  display: flex;
  align-items: center;
  gap: 20px;
  flex-wrap: wrap;
  margin-bottom: 40px;
}

.telemetry-metrics-bar {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  padding: 16px;
  background: rgba(10, 14, 23, 0.8);
  border: 1px solid var(--titanium-border);
  backdrop-filter: blur(8px);
}

.metric-item {
  border-left: 2px solid var(--cyan-glow);
  padding-left: 12px;
}

.metric-val {
  font-family: var(--font-hud);
  font-size: 1.4rem;
  font-weight: 800;
  color: var(--cyan-glow);
}

.metric-lbl {
  font-size: 0.78rem;
  color: var(--text-muted);
  text-transform: uppercase;
}

/* Radar & Target Display Component */
.hero-radar-card {
  background: var(--bg-card);
  border: 1px solid var(--titanium-border);
  padding: 24px;
  border-radius: var(--radius-card);
  position: relative;
  box-shadow: 0 10px 40px rgba(0,0,0,0.6);
}

.radar-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid rgba(0,229,255,0.1);
  padding-bottom: 12px;
  margin-bottom: 20px;
}

.radar-title {
  font-family: var(--font-hud);
  font-size: 0.9rem;
  color: var(--cyan-glow);
  letter-spacing: 1px;
}

.radar-viewport {
  width: 100%;
  height: 260px;
  background: radial-gradient(circle, rgba(0, 229, 255, 0.08) 0%, rgba(5, 7, 11, 0.9) 75%);
  border: 1px solid var(--titanium-border);
  position: relative;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
}

/* Crosshair & Radar Sweep */
.radar-crosshair {
  position: absolute;
  width: 100%;
  height: 100%;
  top: 0;
  left: 0;
  pointer-events: none;
}

.radar-crosshair::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 0;
  width: 100%;
  height: 1px;
  background: rgba(0, 229, 255, 0.2);
}

.radar-crosshair::after {
  content: '';
  position: absolute;
  top: 0;
  left: 50%;
  width: 1px;
  height: 100%;
  background: rgba(0, 229, 255, 0.2);
}

.radar-circle {
  position: absolute;
  border: 1px dashed rgba(0, 229, 255, 0.25);
  border-radius: 50%;
}

.radar-circle-1 { width: 80px; height: 80px; }
.radar-circle-2 { width: 160px; height: 160px; }
.radar-circle-3 { width: 230px; height: 230px; }

.radar-sweep {
  position: absolute;
  width: 240px;
  height: 240px;
  border-radius: 50%;
  background: conic-gradient(from 0deg, rgba(0, 229, 255, 0.4) 0deg, transparent 60deg, transparent 360deg);
  animation: radarScan 4s linear infinite;
}

@keyframes radarScan {
  0% { transform: rotate(0deg); }
  100% { transform: rotate(360deg); }
}

.radar-blip {
  position: absolute;
  width: 8px;
  height: 8px;
  background: var(--cyan-glow);
  border-radius: 50%;
  box-shadow: 0 0 10px var(--cyan-glow);
  animation: blipPulse 1.5s infinite alternate;
}

.radar-blip-1 { top: 35%; left: 65%; }
.radar-blip-2 { top: 60%; left: 30%; }
.radar-blip-3 { top: 75%; left: 75%; }
.radar-blip-4 { top: 25%; left: 35%; }

@keyframes blipPulse {
  0% { transform: scale(1); opacity: 1; }
  100% { transform: scale(1.6); opacity: 0.4; }
}

.radar-stats-list {
  margin-top: 16px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.radar-node-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: rgba(0, 229, 255, 0.04);
  border: 1px solid rgba(0, 229, 255, 0.1);
  padding: 8px 12px;
  font-size: 0.85rem;
}

.node-name {
  display: flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-hud);
}

.node-ping {
  color: var(--green-online);
  font-family: var(--font-hud);
  font-weight: 700;
}

/* Features Grid */
.section-padding {
  padding: 90px 0;
}

.section-header {
  text-align: center;
  margin-bottom: 50px;
}

.section-title {
  font-family: var(--font-hud);
  font-size: 2.2rem;
  font-weight: 800;
  color: var(--text-bright);
  margin-top: 10px;
}

.section-desc {
  color: var(--text-muted);
  max-width: 650px;
  margin: 12px auto 0 auto;
  font-size: 0.98rem;
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 28px;
}

.feature-card {
  background: var(--bg-card);
  border: 1px solid var(--titanium-border);
  padding: 32px 28px;
  border-radius: var(--radius-card);
  transition: var(--transition-smooth);
  position: relative;
}

.feature-card:hover {
  background: var(--bg-card-hover);
  border-color: var(--titanium-border-bright);
  transform: translateY(-5px);
  box-shadow: 0 10px 30px rgba(0, 229, 255, 0.15);
}

.feature-icon-wrap {
  width: 52px;
  height: 52px;
  border: 1px solid var(--cyan-glow);
  background: rgba(0, 229, 255, 0.08);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
  clip-path: polygon(15% 0%, 100% 0%, 85% 100%, 0% 100%);
}

.feature-icon-wrap svg {
  width: 26px;
  height: 26px;
  fill: var(--cyan-glow);
}

.feature-title {
  font-family: var(--font-hud);
  font-size: 1.25rem;
  color: var(--text-bright);
  margin-bottom: 12px;
}

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

/* Pricing Section */
.pricing-section {
  background: linear-gradient(180deg, transparent 0%, rgba(10, 14, 23, 0.8) 50%, transparent 100%);
  position: relative;
}

.pricing-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(270px, 1fr));
  gap: 24px;
}

.pricing-card {
  background: var(--bg-card);
  border: 1px solid var(--titanium-border);
  padding: 36px 28px;
  border-radius: var(--radius-card);
  display: flex;
  flex-direction: column;
  position: relative;
  transition: var(--transition-smooth);
}

.pricing-card.featured {
  border-color: var(--cyan-glow);
  background: rgba(14, 23, 38, 0.9);
  box-shadow: 0 0 35px rgba(0, 229, 255, 0.2);
}

.pricing-card.featured::before {
  content: 'RECOMMENDED';
  position: absolute;
  top: -14px;
  left: 50%;
  transform: translateX(-50%);
  font-family: var(--font-hud);
  font-size: 0.65rem;
  letter-spacing: 2px;
  background: var(--cyan-glow);
  color: #000;
  font-weight: 800;
  padding: 3px 14px;
  clip-path: polygon(8px 0, 100% 0, calc(100% - 8px) 100%, 0 100%);
}

.pricing-plan-name {
  font-family: var(--font-hud);
  font-size: 1.3rem;
  color: var(--text-bright);
  margin-bottom: 8px;
}

.pricing-price {
  font-family: var(--font-hud);
  font-size: 2.5rem;
  font-weight: 900;
  color: var(--cyan-glow);
  margin-bottom: 20px;
}

.pricing-price span {
  font-size: 0.9rem;
  color: var(--text-muted);
  font-weight: 400;
}

.pricing-features {
  list-style: none;
  margin-bottom: 30px;
  flex-grow: 1;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.pricing-features li {
  font-size: 0.9rem;
  color: var(--text-main);
  display: flex;
  align-items: center;
  gap: 10px;
}

.pricing-features li svg {
  width: 16px;
  height: 16px;
  fill: var(--cyan-glow);
  flex-shrink: 0;
}

/* Articles Section */
.articles-section {
  position: relative;
}

.keywords-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  justify-content: center;
  margin-bottom: 40px;
}

.kw-badge {
  font-size: 0.8rem;
  color: var(--cyan-glow);
  background: rgba(0, 229, 255, 0.06);
  border: 1px solid rgba(0, 229, 255, 0.2);
  padding: 4px 12px;
  border-radius: 20px;
  cursor: pointer;
  transition: var(--transition-fast);
}

.kw-badge:hover {
  background: var(--cyan-glow);
  color: #000;
}

.articles-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
  gap: 28px;
}

.article-card {
  background: var(--bg-card);
  border: 1px solid var(--titanium-border);
  padding: 28px;
  border-radius: var(--radius-card);
  transition: var(--transition-smooth);
  display: flex;
  flex-direction: column;
}

.article-card:hover {
  border-color: var(--cyan-glow);
  transform: translateY(-4px);
}

.article-meta {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 0.78rem;
  color: var(--text-muted);
  margin-bottom: 12px;
}

.article-title {
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--text-bright);
  margin-bottom: 14px;
  line-height: 1.4;
}

.article-excerpt {
  color: var(--text-muted);
  font-size: 0.9rem;
  line-height: 1.6;
  margin-bottom: 20px;
  flex-grow: 1;
}

.btn-read-article {
  align-self: flex-start;
  font-family: var(--font-hud);
  font-size: 0.8rem;
  color: var(--cyan-glow);
  background: transparent;
  border: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 0;
  text-transform: uppercase;
  letter-spacing: 1px;
}

.btn-read-article:hover {
  color: #ffffff;
  gap: 10px;
}

/* Article Modal Drawer */
.article-modal {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  background: rgba(3, 5, 8, 0.88);
  backdrop-filter: blur(20px);
  z-index: 2000;
  display: none;
  align-items: center;
  justify-content: center;
  padding: 20px;
}

.article-modal.active {
  display: flex;
}

.article-modal-content {
  background: #0A0F18;
  border: 1px solid var(--titanium-border-bright);
  max-width: 900px;
  width: 100%;
  max-height: 90vh;
  overflow-y: auto;
  padding: 40px;
  border-radius: var(--radius-card);
  position: relative;
  box-shadow: 0 0 50px rgba(0, 229, 255, 0.25);
}

.article-modal-close {
  position: absolute;
  top: 20px;
  right: 20px;
  background: rgba(0,229,255,0.1);
  border: 1px solid var(--cyan-glow);
  color: var(--cyan-glow);
  width: 36px;
  height: 36px;
  font-size: 1.2rem;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
}

.article-body {
  margin-top: 24px;
  font-size: 1rem;
  line-height: 1.8;
  color: var(--text-main);
}

.article-body h2 {
  font-family: var(--font-hud);
  color: var(--cyan-glow);
  margin: 28px 0 16px 0;
  font-size: 1.4rem;
}

.article-body h3 {
  color: var(--text-bright);
  margin: 20px 0 12px 0;
  font-size: 1.15rem;
}

.article-body p {
  margin-bottom: 16px;
}

.article-body ul {
  margin: 16px 0 16px 24px;
}

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

.article-body a {
  color: var(--cyan-glow);
  text-decoration: underline;
  text-underline-offset: 4px;
}

/* User Reviews Section */
.reviews-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 24px;
}

.review-card {
  background: var(--bg-card);
  border: 1px solid var(--titanium-border);
  padding: 24px;
  border-radius: var(--radius-card);
}

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

.avatar-hud {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: rgba(0, 229, 255, 0.15);
  border: 1px solid var(--cyan-glow);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-hud);
  font-weight: 800;
  color: var(--cyan-glow);
}

.user-name {
  font-weight: 700;
  color: var(--text-bright);
  font-size: 0.95rem;
}

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

.review-text {
  font-size: 0.9rem;
  color: var(--text-main);
  line-height: 1.6;
}

/* FAQ Accordion Section */
.faq-wrap {
  max-width: 850px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.faq-item {
  background: var(--bg-card);
  border: 1px solid var(--titanium-border);
  border-radius: var(--radius-card);
  overflow: hidden;
}

.faq-question {
  padding: 20px 24px;
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--text-bright);
  display: flex;
  align-items: center;
  justify-content: space-between;
  cursor: pointer;
  transition: var(--transition-fast);
}

.faq-question:hover {
  color: var(--cyan-glow);
  background: rgba(0, 229, 255, 0.04);
}

.faq-icon {
  font-family: var(--font-hud);
  color: var(--cyan-glow);
  font-size: 1.2rem;
  transition: transform 0.3s ease;
}

.faq-item.active .faq-icon {
  transform: rotate(45deg);
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s cubic-bezier(0.16, 1, 0.3, 1);
  padding: 0 24px;
  color: var(--text-muted);
  font-size: 0.95rem;
  line-height: 1.7;
}

.faq-item.active .faq-answer {
  padding: 0 24px 20px 24px;
  max-height: 300px;
}

/* Footer & PBN Network Links Pipeline */
.stealth-footer {
  background: #030508;
  border-top: 1px solid var(--titanium-border);
  padding: 60px 0 30px 0;
  position: relative;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr repeat(3, 1fr);
  gap: 40px;
  margin-bottom: 40px;
}

.footer-brand-desc {
  color: var(--text-muted);
  font-size: 0.88rem;
  margin-top: 14px;
  max-width: 320px;
}

.footer-title {
  font-family: var(--font-hud);
  font-size: 0.9rem;
  color: var(--cyan-glow);
  margin-bottom: 18px;
  letter-spacing: 1px;
}

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

.footer-links-list a {
  color: var(--text-muted);
  text-decoration: none;
  font-size: 0.85rem;
  transition: var(--transition-fast);
}

.footer-links-list a:hover {
  color: var(--cyan-glow);
}

/* Low-profile PBN Friendship Links Pipeline */
.pbn-pipeline-area {
  border-top: 1px dashed rgba(0, 229, 255, 0.15);
  padding-top: 24px;
  margin-top: 30px;
  text-align: center;
}

.pbn-title {
  font-family: var(--font-hud);
  font-size: 0.72rem;
  color: var(--text-muted);
  letter-spacing: 1.5px;
  text-transform: uppercase;
  margin-bottom: 12px;
  opacity: 0.6;
}

.pbn-links-flex {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 16px;
}

.pbn-link {
  font-size: 0.78rem;
  color: #5A697D;
  text-decoration: none;
  transition: var(--transition-fast);
}

.pbn-link:hover {
  color: var(--cyan-glow);
}

.copyright-text {
  text-align: center;
  font-size: 0.8rem;
  color: #4A5568;
  margin-top: 20px;
}

/* Mobile Responsive Adjustments */
@media (max-width: 991px) {
  .hero-grid {
    grid-template-columns: 1fr;
    gap: 50px;
  }
  
  .hero-title {
    font-size: 2.2rem;
  }

  .nav-links {
    display: none;
  }

  .mobile-toggle {
    display: block;
  }
  
  .footer-grid {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 600px) {
  .hero-title {
    font-size: 1.8rem;
  }
  
  .telemetry-metrics-bar {
    grid-template-columns: 1fr;
  }

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

  .article-modal-content {
    padding: 24px 16px;
  }
}

/* ==========================================================================
   Client Download Modal & Mobile Navigation Styles
   ========================================================================== */
.download-modal-content {
  max-width: 680px;
  background: #080D16;
  border: 1px solid var(--titanium-border-bright);
  padding: 36px 30px;
}

.dl-modal-header {
  text-align: center;
  margin-bottom: 24px;
}

.dl-modal-title {
  font-family: var(--font-hud);
  color: var(--cyan-glow);
  font-size: 1.5rem;
  margin: 12px 0 8px 0;
  letter-spacing: 1px;
}

.dl-modal-subtitle {
  color: var(--text-muted);
  font-size: 0.95rem;
}

.dl-plan-hint {
  margin-top: 14px;
  display: inline-flex;
  align-items: center;
  flex-wrap: wrap;
  justify-content: center;
  gap: 8px;
  background: rgba(0, 229, 255, 0.08);
  border: 1px solid rgba(0, 229, 255, 0.3);
  padding: 6px 14px;
  border-radius: 4px;
  font-size: 0.88rem;
}

.dl-plan-tag {
  color: var(--cyan-glow);
  font-weight: 600;
  font-family: var(--font-hud);
}

.dl-plan-name {
  color: #FFFFFF;
  font-weight: 700;
}

.dl-plan-desc {
  color: var(--text-muted);
  font-size: 0.82rem;
}

.dl-platforms-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
  margin-bottom: 24px;
}

.dl-platform-card {
  background: var(--bg-card);
  border: 1px solid var(--titanium-border);
  padding: 26px 20px;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  border-radius: var(--radius-card);
  transition: var(--transition-fast);
}

.dl-platform-card:hover {
  border-color: var(--cyan-glow);
  box-shadow: 0 0 20px rgba(0, 229, 255, 0.25);
  transform: translateY(-2px);
}

.dl-platform-icon {
  width: 52px;
  height: 52px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--cyan-glow);
  margin-bottom: 12px;
}

.dl-platform-icon svg {
  width: 44px;
  height: 44px;
}

.dl-platform-name {
  font-family: var(--font-hud);
  font-size: 1.15rem;
  color: #FFFFFF;
  margin-bottom: 6px;
}

.dl-platform-meta {
  color: var(--text-muted);
  font-size: 0.82rem;
  margin-bottom: 18px;
  min-height: 38px;
}

.dl-btn {
  width: 100%;
  justify-content: center;
  font-size: 0.9rem;
  padding: 10px 14px;
}

.dl-modal-footer {
  text-align: center;
  border-top: 1px solid var(--titanium-border);
  padding-top: 16px;
}

.dl-footer-tips {
  color: var(--text-muted);
  font-size: 0.85rem;
  margin-bottom: 10px;
}

.dl-more-guide-link {
  color: var(--cyan-glow);
  text-decoration: none;
  font-size: 0.88rem;
  display: inline-flex;
  align-items: center;
  gap: 4px;
  transition: var(--transition-fast);
}

.dl-more-guide-link:hover {
  text-decoration: underline;
  filter: drop-shadow(0 0 6px var(--cyan-glow));
}

/* Mobile Nav Menu Drawer Expansion */
@media (max-width: 991px) {
  .nav-links.active {
    display: flex;
    flex-direction: column;
    position: absolute;
    top: 100%;
    left: 0;
    width: 100%;
    background: #080D16;
    border-bottom: 1px solid var(--titanium-border-bright);
    padding: 20px 24px;
    gap: 16px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.8);
    z-index: 999;
  }
}

@media (max-width: 640px) {
  .dl-platforms-grid {
    grid-template-columns: 1fr;
    gap: 16px;
  }
  .download-modal-content {
    padding: 24px 16px;
  }
}