/* ==========================================================================
   Flybit机场 - 全站统一暗黑光子羽翼与比特流 (Photonic Wing & Aerodynamic Bitstream)
   ========================================================================== */

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

:root {
  --bg-main: #09090B;
  --bg-section: #0F172A;
  --bg-card: #18181B;
  --bg-card-hover: #1E293B;
  --bg-accent-soft: rgba(0, 210, 255, 0.08);
  
  --text-main: #F4F4F5;
  --text-muted: #A1A1AA;
  --text-light: #71717A;
  
  --neon-blue: #00D2FF;
  --neon-blue-dark: #00B4D8;
  --neon-cyan: #38BDF8;
  --neon-glow: rgba(0, 210, 255, 0.3);
  
  --border-color: #27272A;
  --border-hover: rgba(0, 210, 255, 0.5);
  
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-heading: 'Outfit', 'Inter', sans-serif;
  --font-mono: 'Fira Code', monospace;
  
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 20px;
  --radius-xl: 28px;
  
  --shadow-subtle: 0 10px 30px rgba(0, 0, 0, 0.4);
  --shadow-glow: 0 12px 35px -8px rgba(0, 210, 255, 0.28);
  --shadow-hover: 0 20px 45px -10px rgba(0, 210, 255, 0.25);
  
  --transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}

/* Reset & Base */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  font-size: 16px;
  background-color: var(--bg-main);
  color-scheme: dark;
}

body {
  font-family: var(--font-sans);
  background-color: var(--bg-main);
  color: var(--text-main);
  line-height: 1.7;
  overflow-x: hidden;
  position: relative;
  -webkit-font-smoothing: antialiased;
}

a {
  color: inherit;
  text-decoration: none;
  transition: var(--transition);
}

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

/* Aerodynamic Wind Tunnel Canvas Background */
.wind-tunnel-bg {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100vh;
  z-index: 0;
  pointer-events: none;
  overflow: hidden;
  background: 
    radial-gradient(circle at 80% 10%, rgba(0, 210, 255, 0.12) 0%, transparent 50%),
    radial-gradient(circle at 10% 60%, rgba(56, 189, 248, 0.08) 0%, transparent 45%),
    #09090B;
}

#particleCanvas {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 0;
  pointer-events: none;
}

/* Container */
.container {
  width: 100%;
  max-width: 1240px;
  margin: 0 auto;
  padding: 0 24px;
  position: relative;
  z-index: 1;
}

/* Navbar */
.navbar {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(9, 9, 11, 0.88);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid rgba(39, 39, 42, 0.8);
  transition: var(--transition);
}

.navbar-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 76px;
}

.logo {
  display: flex;
  align-items: center;
  gap: 12px;
  font-family: var(--font-heading);
  font-size: 22px;
  font-weight: 800;
  color: #FFFFFF;
  letter-spacing: -0.02em;
}

.logo-icon {
  width: 38px;
  height: 38px;
  background: linear-gradient(135deg, #00D2FF 0%, #0284C7 100%);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 14px rgba(0, 210, 255, 0.4);
  transform: rotate(-3deg);
  transition: var(--transition);
}

.logo:hover .logo-icon {
  transform: rotate(0deg) scale(1.05);
}

.logo-text span {
  color: var(--neon-blue);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 32px;
  list-style: none;
}

.nav-links a {
  font-size: 15px;
  font-weight: 500;
  color: var(--text-muted);
}

.nav-links a:hover,
.nav-links a.active {
  color: var(--neon-blue);
}

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

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 24px;
  border-radius: var(--radius-md);
  font-size: 15px;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
  border: 1px solid transparent;
  white-space: nowrap;
}

.btn-primary {
  background: linear-gradient(135deg, #00D2FF 0%, #0099DD 100%);
  color: #FFFFFF;
  box-shadow: 0 4px 18px rgba(0, 210, 255, 0.4);
}

.btn-primary:hover {
  background: linear-gradient(135deg, #1AD7FF 0%, #0088CC 100%);
  box-shadow: 0 8px 25px rgba(0, 210, 255, 0.55);
  transform: translateY(-2px);
}

.btn-outline {
  background: rgba(24, 24, 27, 0.8);
  border-color: var(--border-color);
  color: var(--text-main);
}

.btn-outline:hover {
  border-color: var(--neon-blue);
  color: var(--neon-blue);
  background: rgba(30, 41, 59, 0.9);
  box-shadow: 0 4px 18px rgba(0, 210, 255, 0.2);
  transform: translateY(-2px);
}

.btn-lg {
  padding: 16px 34px;
  font-size: 16px;
  border-radius: var(--radius-lg);
}

.btn-block {
  width: 100%;
}

/* Mobile Nav Toggle */
.mobile-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
}

.mobile-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background-color: var(--text-main);
  margin: 5px 0;
  transition: var(--transition);
}

/* Hero Section */
.hero {
  padding: 90px 0 70px;
  position: relative;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 48px;
  align-items: center;
}

.hero-tag {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 16px;
  background: rgba(0, 210, 255, 0.1);
  border: 1px solid rgba(0, 210, 255, 0.3);
  border-radius: 30px;
  font-size: 13px;
  font-weight: 600;
  color: var(--neon-blue);
  margin-bottom: 24px;
}

.hero-tag-dot {
  width: 8px;
  height: 8px;
  background-color: var(--neon-blue);
  border-radius: 50%;
  box-shadow: 0 0 10px var(--neon-blue);
  animation: pulseDot 2s infinite;
}

@keyframes pulseDot {
  0%, 100% { transform: scale(1); opacity: 1; }
  50% { transform: scale(1.3); opacity: 0.6; }
}

.hero-title {
  font-family: var(--font-heading);
  font-size: 52px;
  font-weight: 800;
  line-height: 1.15;
  letter-spacing: -0.03em;
  margin-bottom: 20px;
  color: #FFFFFF;
}

.hero-title span.gradient-text {
  background: linear-gradient(135deg, #00D2FF 0%, #38BDF8 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero-desc {
  font-size: 18px;
  color: var(--text-muted);
  line-height: 1.7;
  margin-bottom: 36px;
}

.hero-keywords {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 36px;
}

.keyword-badge {
  font-size: 12px;
  font-family: var(--font-mono);
  background: rgba(24, 24, 27, 0.9);
  border: 1px solid var(--border-color);
  padding: 5px 12px;
  border-radius: 6px;
  color: var(--text-muted);
}

.hero-cta-group {
  display: flex;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
}

.hero-stats {
  margin-top: 48px;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  padding-top: 32px;
  border-top: 1px solid var(--border-color);
}

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

.stat-number {
  font-family: var(--font-mono);
  font-size: 28px;
  font-weight: 700;
  color: #FFFFFF;
  display: flex;
  align-items: center;
}

.stat-number span {
  color: var(--neon-blue);
  font-size: 20px;
  margin-left: 2px;
}

.stat-label {
  font-size: 13px;
  color: var(--text-light);
  margin-top: 4px;
}

/* Aerodynamic Visual Box */
.hero-visual {
  position: relative;
}

.wing-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-xl);
  padding: 36px;
  box-shadow: var(--shadow-subtle);
  backdrop-filter: blur(20px);
  position: relative;
  overflow: hidden;
  transition: var(--transition);
}

.wing-card:hover {
  border-color: var(--border-hover);
  box-shadow: var(--shadow-glow);
}

.speed-meter {
  background: #0F172A;
  border: 1px solid #1E293B;
  border-radius: var(--radius-lg);
  padding: 24px;
  color: #FFFFFF;
  margin-bottom: 24px;
  position: relative;
  overflow: hidden;
}

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

.speed-title {
  font-size: 14px;
  color: #94A3B8;
  display: flex;
  align-items: center;
  gap: 8px;
}

.speed-badge {
  font-family: var(--font-mono);
  font-size: 11px;
  background: rgba(0, 210, 255, 0.2);
  color: var(--neon-blue);
  padding: 2px 8px;
  border-radius: 4px;
}

.speed-val {
  font-family: var(--font-mono);
  font-size: 42px;
  font-weight: 700;
  color: #00D2FF;
  line-height: 1;
}

.speed-unit {
  font-size: 16px;
  color: #94A3B8;
  font-weight: 400;
}

.tunnel-bar {
  height: 6px;
  background: #1E293B;
  border-radius: 10px;
  overflow: hidden;
  position: relative;
  margin-top: 16px;
}

.tunnel-progress {
  height: 100%;
  width: 92%;
  background: linear-gradient(90deg, #00D2FF, #38BDF8);
  border-radius: 10px;
  box-shadow: 0 0 12px #00D2FF;
  animation: pulseBar 2s infinite linear;
}

@keyframes pulseBar {
  0% { opacity: 0.8; }
  50% { opacity: 1; }
  100% { opacity: 0.8; }
}

.visual-features {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.mini-feat {
  background: rgba(30, 41, 59, 0.6);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 16px;
  display: flex;
  align-items: center;
  gap: 12px;
}

.mini-icon {
  width: 36px;
  height: 36px;
  background: #18181B;
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--neon-blue);
}

.mini-title {
  font-size: 14px;
  font-weight: 600;
  color: #FFFFFF;
}

.mini-sub {
  font-size: 12px;
  color: var(--text-light);
}

/* Section Header */
.section {
  padding: 90px 0;
  position: relative;
  background: transparent;
}

.section-header {
  text-align: center;
  max-width: 720px;
  margin: 0 auto 60px;
}

.section-subtitle {
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 600;
  color: var(--neon-blue);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: 12px;
}

.section-title {
  font-family: var(--font-heading);
  font-size: 38px;
  font-weight: 800;
  color: #FFFFFF;
  line-height: 1.2;
  letter-spacing: -0.02em;
  margin-bottom: 16px;
}

.section-desc {
  font-size: 16px;
  color: var(--text-muted);
  line-height: 1.7;
}

/* Features Section (Matching Screenshot 3 Style) */
.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}

.feature-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 36px 28px;
  box-shadow: var(--shadow-subtle);
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}

.feature-card:hover {
  transform: translateY(-5px);
  border-color: var(--border-hover);
  box-shadow: var(--shadow-glow);
}

.feature-icon-wrapper {
  width: 50px;
  height: 50px;
  background: rgba(0, 210, 255, 0.1);
  border: 1px solid rgba(0, 210, 255, 0.25);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--neon-blue);
  margin-bottom: 24px;
  transition: var(--transition);
}

.feature-card:hover .feature-icon-wrapper {
  background: var(--neon-blue);
  color: #FFFFFF;
  box-shadow: 0 4px 18px rgba(0, 210, 255, 0.5);
}

.feature-title {
  font-family: var(--font-heading);
  font-size: 20px;
  font-weight: 700;
  margin-bottom: 12px;
  color: #FFFFFF;
}

.feature-text {
  font-size: 15px;
  color: var(--text-muted);
  line-height: 1.6;
}

/* Pricing Section (Matching Screenshot 3 Sleek Dark Card Style) */
.pricing-tabs-wrapper {
  display: flex;
  justify-content: center;
  margin-bottom: 40px;
}

.pricing-tabs {
  display: inline-flex;
  background: #1E293B;
  padding: 6px;
  border-radius: var(--radius-md);
  gap: 4px;
}

.pricing-tab {
  padding: 10px 24px;
  border-radius: var(--radius-sm);
  font-size: 14px;
  font-weight: 600;
  color: #94A3B8;
  background: none;
  border: none;
  cursor: pointer;
  transition: var(--transition);
}

.pricing-tab.active {
  background: #334155;
  color: #FFFFFF;
  box-shadow: 0 2px 8px rgba(0,0,0,0.3);
}

.pricing-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
  align-items: stretch;
}

.pricing-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 32px 28px;
  color: #F4F4F5;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  position: relative;
  transition: var(--transition);
  box-shadow: var(--shadow-subtle);
}

.pricing-card:hover {
  border-color: var(--border-hover);
  box-shadow: var(--shadow-glow);
  transform: translateY(-4px);
}

.pricing-card.popular {
  border-color: var(--neon-blue);
  box-shadow: 0 12px 35px rgba(0, 210, 255, 0.3);
  background: linear-gradient(180deg, rgba(0, 210, 255, 0.04) 0%, var(--bg-card) 100%);
}

.pricing-popular-badge {
  position: absolute;
  top: -14px;
  right: 24px;
  background: linear-gradient(135deg, #00D2FF, #0284C7);
  color: #FFFFFF;
  font-size: 12px;
  font-weight: 700;
  padding: 4px 14px;
  border-radius: 20px;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  box-shadow: 0 4px 14px rgba(0, 210, 255, 0.4);
}

.pricing-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  margin-bottom: 24px;
  padding-bottom: 20px;
  border-bottom: 1px solid #27272A;
}

.pricing-title-group {
  display: flex;
  align-items: center;
  gap: 12px;
}

.pricing-icon-wrapper {
  width: 40px;
  height: 40px;
  background: rgba(0, 210, 255, 0.1);
  border: 1px solid rgba(0, 210, 255, 0.25);
  border-radius: 10px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: var(--neon-blue);
  flex-shrink: 0;
}

.pricing-title {
  font-family: var(--font-heading);
  font-size: 20px;
  font-weight: 700;
  color: #FFFFFF;
}

.pricing-price {
  font-family: var(--font-mono);
  font-size: 28px;
  font-weight: 700;
  color: #00D2FF;
}

.pricing-price span {
  font-size: 13px;
  color: #A1A1AA;
  font-weight: 400;
}

.pricing-features-list {
  list-style: none;
  margin-bottom: 32px;
}

.pricing-features-list li {
  font-size: 14px;
  color: #D4D4D8;
  margin-bottom: 14px;
  display: flex;
  align-items: flex-start;
  gap: 10px;
}

.pricing-features-list li svg {
  flex-shrink: 0;
  margin-top: 2px;
}

.pricing-btn {
  background: rgba(30, 41, 59, 0.8);
  color: #FFFFFF;
  border: 1px solid var(--border-color);
  padding: 14px;
  border-radius: var(--radius-md);
  font-size: 15px;
  font-weight: 700;
  cursor: pointer;
  transition: var(--transition);
  text-align: center;
  display: block;
  width: 100%;
}

.pricing-card.popular .pricing-btn,
.pricing-btn.primary-btn {
  background: linear-gradient(135deg, #00D2FF 0%, #0099DD 100%);
  color: #FFFFFF;
  border: none;
  box-shadow: 0 4px 18px rgba(0, 210, 255, 0.4);
}

.pricing-btn:hover {
  opacity: 0.95;
  transform: translateY(-2px);
  border-color: var(--neon-blue);
  color: #FFFFFF;
}

/* Target Audience Section */
.audience-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.audience-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 28px 24px;
  transition: var(--transition);
}

.audience-card:hover {
  border-color: var(--neon-blue);
  box-shadow: var(--shadow-glow);
  transform: translateY(-3px);
}

.audience-icon-wrapper {
  width: 46px;
  height: 46px;
  background: rgba(0, 210, 255, 0.1);
  border: 1px solid rgba(0, 210, 255, 0.25);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--neon-blue);
  margin-bottom: 20px;
}

.audience-title {
  font-size: 18px;
  font-weight: 700;
  margin-bottom: 10px;
  color: #FFFFFF;
}

.audience-desc {
  font-size: 14px;
  color: var(--text-muted);
  line-height: 1.6;
}

/* Tutorials & Articles Preview Grid */
.tutorials-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 32px;
}

.tutorial-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 32px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  transition: var(--transition);
}

.tutorial-card:hover {
  border-color: var(--neon-blue);
  box-shadow: var(--shadow-glow);
}

.tutorial-badge {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--neon-blue);
  background: var(--bg-accent-soft);
  padding: 4px 10px;
  border-radius: 4px;
  margin-bottom: 16px;
  width: fit-content;
}

.tutorial-title {
  font-family: var(--font-heading);
  font-size: 22px;
  font-weight: 700;
  margin-bottom: 12px;
  color: #FFFFFF;
}

.tutorial-desc {
  font-size: 15px;
  color: var(--text-muted);
  margin-bottom: 24px;
  line-height: 1.6;
}

.tutorial-link {
  font-size: 14px;
  font-weight: 600;
  color: var(--neon-blue);
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.tutorial-link:hover {
  gap: 10px;
}

/* Testimonials / User Reviews */
.reviews-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}

.review-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 28px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  box-shadow: var(--shadow-subtle);
}

.review-stars {
  display: flex;
  gap: 4px;
  color: #F59E0B;
  margin-bottom: 16px;
}

.review-text {
  font-size: 15px;
  color: var(--text-muted);
  line-height: 1.6;
  margin-bottom: 24px;
  font-style: italic;
}

.review-user {
  display: flex;
  align-items: center;
  gap: 12px;
}

.avatar {
  width: 42px;
  height: 42px;
  background: linear-gradient(135deg, #00D2FF, #0284C7);
  color: #FFFFFF;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 16px;
}

.user-info .name {
  font-size: 15px;
  font-weight: 700;
  color: #FFFFFF;
}

.user-info .role {
  font-size: 13px;
  color: var(--text-light);
}

/* FAQ Accordion */
.faq-list {
  max-width: 860px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

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

.faq-item.active {
  border-color: var(--neon-blue);
  box-shadow: var(--shadow-subtle);
}

.faq-question {
  padding: 22px 28px;
  font-size: 17px;
  font-weight: 700;
  color: #FFFFFF;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: space-between;
  user-select: none;
}

.faq-icon {
  width: 24px;
  height: 24px;
  border-radius: 50%;
  background: rgba(0, 210, 255, 0.1);
  color: var(--neon-blue);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 16px;
  transition: var(--transition);
}

.faq-item.active .faq-icon {
  transform: rotate(45deg);
  background: var(--neon-blue);
  color: #FFFFFF;
}

.faq-answer {
  padding: 0 28px 24px;
  font-size: 15px;
  color: var(--text-muted);
  line-height: 1.7;
  display: none;
}

.faq-item.active .faq-answer {
  display: block;
}

/* Articles List Hub */
.articles-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}

.article-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 28px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  transition: var(--transition);
}

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

.article-meta {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 13px;
  color: var(--text-light);
  margin-bottom: 12px;
}

.article-category {
  color: var(--neon-blue);
  font-weight: 600;
}

.article-title {
  font-family: var(--font-heading);
  font-size: 18px;
  font-weight: 700;
  line-height: 1.4;
  margin-bottom: 12px;
  color: #FFFFFF;
}

.article-excerpt {
  font-size: 14px;
  color: var(--text-muted);
  line-height: 1.6;
  margin-bottom: 20px;
}

/* SEO Article & Tutorial Page Styles (Dark Unified Theme) */
.article-header {
  padding: 70px 0 40px;
  background: linear-gradient(180deg, rgba(0, 210, 255, 0.12) 0%, transparent 100%);
  border-bottom: 1px solid var(--border-color);
}

.breadcrumb {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 14px;
  color: var(--text-light);
  margin-bottom: 20px;
}

.breadcrumb a:hover {
  color: var(--neon-blue);
}

.article-main-title {
  font-family: var(--font-heading);
  font-size: 38px;
  font-weight: 800;
  line-height: 1.25;
  color: #FFFFFF;
  margin-bottom: 20px;
}

.article-content {
  max-width: 900px;
  margin: 0 auto;
  padding: 50px 24px;
  font-size: 16px;
  color: #D4D4D8;
  line-height: 1.8;
}

.article-content h2 {
  font-family: var(--font-heading);
  font-size: 26px;
  font-weight: 700;
  color: #FFFFFF;
  margin: 48px 0 20px;
  padding-bottom: 12px;
  border-bottom: 2px solid rgba(0, 210, 255, 0.3);
}

.article-content h3 {
  font-family: var(--font-heading);
  font-size: 20px;
  font-weight: 700;
  color: #38BDF8;
  margin: 32px 0 16px;
}

.article-content p {
  margin-bottom: 22px;
}

.article-content ul, .article-content ol {
  margin-bottom: 28px;
  padding-left: 24px;
}

.article-content li {
  margin-bottom: 12px;
}

.article-content blockquote {
  border-left: 4px solid var(--neon-blue);
  background: rgba(0, 210, 255, 0.08);
  padding: 20px 28px;
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
  margin: 30px 0;
  font-style: italic;
  color: #E2E8F0;
}

.article-cta-box {
  background: linear-gradient(135deg, #0F172A 0%, #1E293B 100%);
  border: 1px solid rgba(0, 210, 255, 0.3);
  border-radius: var(--radius-lg);
  padding: 44px;
  color: #FFFFFF;
  text-align: center;
  margin: 50px 0;
  box-shadow: var(--shadow-glow);
}

.article-cta-box h3 {
  color: #FFFFFF;
  font-size: 26px;
  margin-bottom: 14px;
}

.article-cta-box p {
  color: #94A3B8;
  margin-bottom: 28px;
}

/* Footer */
.footer {
  background: #09090B;
  color: #94A3B8;
  padding: 80px 0 30px;
  font-size: 14px;
  border-top: 1px solid #27272A;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1.5fr;
  gap: 48px;
  margin-bottom: 60px;
}

.footer-brand .logo {
  color: #FFFFFF;
  margin-bottom: 16px;
}

.footer-desc {
  line-height: 1.6;
  margin-bottom: 24px;
}

.footer-title {
  color: #FFFFFF;
  font-family: var(--font-heading);
  font-size: 16px;
  font-weight: 700;
  margin-bottom: 20px;
}

.footer-links {
  list-style: none;
}

.footer-links li {
  margin-bottom: 12px;
}

.footer-links a:hover {
  color: var(--neon-blue);
}

.footer-bottom {
  padding-top: 30px;
  border-top: 1px solid #27272A;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 16px;
}

/* Responsive Media Queries */
@media (max-width: 1024px) {
  .hero-grid {
    grid-template-columns: 1fr;
    gap: 40px;
  }
  
  .features-grid, .pricing-grid, .reviews-grid, .articles-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .audience-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .footer-grid {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 768px) {
  .hero-title {
    font-size: 36px;
  }
  
  .section-title {
    font-size: 28px;
  }
  
  .nav-links {
    display: none;
    position: absolute;
    top: 76px;
    left: 0;
    width: 100%;
    background: #09090B;
    flex-direction: column;
    padding: 24px;
    box-shadow: 0 10px 25px rgba(0,0,0,0.5);
    border-bottom: 1px solid var(--border-color);
  }
  
  .nav-links.active {
    display: flex;
  }
  
  .mobile-toggle {
    display: block;
  }
  
  .features-grid, .pricing-grid, .reviews-grid, .articles-grid, .tutorials-grid, .audience-grid {
    grid-template-columns: 1fr;
  }
  
  .footer-grid {
    grid-template-columns: 1fr;
  }
  
  .hero-stats {
    grid-template-columns: repeat(3, 1fr);
    gap: 12px;
  }
  
  .stat-number {
    font-size: 20px;
  }
}