/* ==========================================================================
   SNTP (守候网络) - Cyberpunk Neon Styling System
   Theme: Cyberpunk Dark (#0a0a0f) + Cyan (#00f0ff) + Magenta (#ff00e6) + Purple (#7c3aed)
   Typography: Space Grotesk (Headings), JetBrains Mono (Code/Labels), Inter/System (Body)
   ========================================================================== */

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

:root {
  --bg-primary: #0a0a0f;
  --bg-secondary: #11111a;
  --bg-glass: rgba(18, 18, 28, 0.72);
  --bg-glass-heavy: rgba(14, 14, 22, 0.88);
  --bg-glass-card: rgba(22, 22, 36, 0.65);
  
  --neon-cyan: #00f0ff;
  --neon-magenta: #ff00e6;
  --neon-purple: #7c3aed;
  --neon-blue: #3b82f6;
  --neon-amber: #f59e0b;
  --neon-emerald: #10b981;

  --glow-cyan: 0 0 20px rgba(0, 240, 255, 0.45);
  --glow-magenta: 0 0 20px rgba(255, 0, 230, 0.45);
  --glow-purple: 0 0 25px rgba(124, 58, 237, 0.5);
  
  --border-cyan: rgba(0, 240, 255, 0.28);
  --border-magenta: rgba(255, 0, 230, 0.28);
  --border-glass: rgba(255, 255, 255, 0.08);

  --text-primary: #f8fafc;
  --text-secondary: #cbd5e1;
  --text-muted: #94a3b8;
  --text-dim: #64748b;

  --font-heading: 'Space Grotesk', 'Noto Sans SC', sans-serif;
  --font-body: 'Noto Sans SC', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-mono: 'JetBrains Mono', 'Courier New', monospace;

  --transition-fast: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-normal: 0.35s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-smooth: 0.5s cubic-bezier(0.16, 1, 0.3, 1);
}

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

html {
  scroll-behavior: smooth;
  font-size: 16px;
  background-color: var(--bg-primary);
  color: var(--text-primary);
  font-family: var(--font-body);
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  background-color: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.65;
  overflow-x: hidden;
  position: relative;
  min-height: 100vh;
}

/* Custom Selection */
::selection {
  background: var(--neon-magenta);
  color: #ffffff;
  text-shadow: 0 0 8px rgba(255, 255, 255, 0.8);
}

/* Custom Scrollbar */
::-webkit-scrollbar {
  width: 8px;
  height: 8px;
}
::-webkit-scrollbar-track {
  background: #0a0a0f;
}
::-webkit-scrollbar-thumb {
  background: linear-gradient(180deg, var(--neon-cyan), var(--neon-magenta));
  border-radius: 4px;
}
::-webkit-scrollbar-thumb:hover {
  background: var(--neon-cyan);
  box-shadow: 0 0 10px var(--neon-cyan);
}

/* Custom Glowing Cursor (Desktop Only) */
@media (hover: hover) and (pointer: fine) {
  body.has-custom-cursor {
    cursor: default;
  }
  .cursor-dot {
    position: fixed;
    top: 0;
    left: 0;
    width: 8px;
    height: 8px;
    background: var(--neon-cyan);
    border-radius: 50%;
    pointer-events: none;
    z-index: 99999;
    transform: translate(-50%, -50%);
    box-shadow: 0 0 10px var(--neon-cyan), 0 0 20px var(--neon-cyan);
    transition: width 0.15s, height 0.15s, background-color 0.15s;
  }
  .cursor-trail {
    position: fixed;
    top: 0;
    left: 0;
    width: 32px;
    height: 32px;
    border: 1.5px solid var(--neon-magenta);
    border-radius: 50%;
    pointer-events: none;
    z-index: 99998;
    transform: translate(-50%, -50%);
    box-shadow: 0 0 15px rgba(255, 0, 230, 0.4);
    transition: transform 0.08s ease-out, width 0.2s, height 0.2s, border-color 0.2s;
  }
}

/* Subtle Grid Background Pattern */
.cyber-grid-bg {
  position: fixed;
  inset: 0;
  background-image: 
    linear-gradient(rgba(0, 240, 255, 0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0, 240, 255, 0.03) 1px, transparent 1px);
  background-size: 60px 60px;
  background-position: center center;
  pointer-events: none;
  z-index: 0;
}

/* Ambient Radial Glows */
.ambient-glow-1 {
  position: fixed;
  top: -150px;
  left: 15%;
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(0, 240, 255, 0.12) 0%, transparent 70%);
  filter: blur(80px);
  pointer-events: none;
  z-index: 0;
  animation: floatOrb 18s ease-in-out infinite alternate;
}
.ambient-glow-2 {
  position: fixed;
  top: 40%;
  right: -100px;
  width: 550px;
  height: 550px;
  background: radial-gradient(circle, rgba(255, 0, 230, 0.1) 0%, transparent 70%);
  filter: blur(90px);
  pointer-events: none;
  z-index: 0;
  animation: floatOrb2 22s ease-in-out infinite alternate;
}
.ambient-glow-3 {
  position: fixed;
  bottom: -100px;
  left: 20%;
  width: 650px;
  height: 650px;
  background: radial-gradient(circle, rgba(124, 58, 237, 0.12) 0%, transparent 70%);
  filter: blur(100px);
  pointer-events: none;
  z-index: 0;
}

@keyframes floatOrb {
  0% { transform: translate(0, 0) scale(1); }
  100% { transform: translate(60px, 80px) scale(1.15); }
}
@keyframes floatOrb2 {
  0% { transform: translate(0, 0) scale(1); }
  100% { transform: translate(-80px, -50px) scale(1.1); }
}

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

/* Typography Utilities */
h1, h2, h3, h4, .brand-logo, .hero-tag {
  font-family: var(--font-heading);
  letter-spacing: -0.02em;
  font-weight: 700;
}

.mono-tag, .badge, .table-code, .metric-unit {
  font-family: var(--font-mono);
}

.gradient-text {
  background: linear-gradient(135deg, var(--neon-cyan) 0%, #ffffff 40%, var(--neon-magenta) 100%);
  background-size: 200% auto;
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  animation: gradientShift 8s ease infinite alternate;
}

.gradient-text-alt {
  background: linear-gradient(135deg, var(--neon-cyan) 10%, var(--neon-purple) 60%, var(--neon-magenta) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

@keyframes gradientShift {
  0% { background-position: 0% 50%; }
  100% { background-position: 100% 50%; }
}

/* Glitch Effect on Hover/Scroll */
.glitch-hover {
  position: relative;
  display: inline-block;
}
.glitch-hover:hover {
  animation: glitch-anim 0.3s cubic-bezier(0.25, 0.46, 0.45, 0.94) both;
}
@keyframes glitch-anim {
  0% { transform: translate(0); text-shadow: none; }
  20% { transform: translate(-2px, 2px); text-shadow: 2px 0 var(--neon-cyan), -2px 0 var(--neon-magenta); }
  40% { transform: translate(-2px, -2px); text-shadow: -2px 0 var(--neon-cyan), 2px 0 var(--neon-magenta); }
  60% { transform: translate(2px, 2px); text-shadow: 2px 0 var(--neon-magenta), -2px 0 var(--neon-cyan); }
  80% { transform: translate(2px, -2px); text-shadow: -2px 0 var(--neon-magenta), 2px 0 var(--neon-cyan); }
  100% { transform: translate(0); text-shadow: none; }
}

/* Neon Divider Line */
.neon-divider {
  width: 100%;
  height: 1px;
  background: linear-gradient(90deg, transparent 0%, rgba(0, 240, 255, 0.4) 25%, rgba(255, 0, 230, 0.6) 50%, rgba(124, 58, 237, 0.4) 75%, transparent 100%);
  box-shadow: 0 0 12px rgba(0, 240, 255, 0.3);
  margin: 60px 0;
  border: none;
}

/* ==========================================================================
   Navigation Bar (Floating with Blur)
   ========================================================================== */
.site-header {
  position: fixed;
  top: 16px;
  left: 0;
  right: 0;
  z-index: 1000;
  padding: 0 20px;
}

.nav-container {
  max-width: 1200px;
  margin: 0 auto;
  background: var(--bg-glass);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid var(--border-glass);
  border-radius: 16px;
  padding: 12px 28px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  box-shadow: 0 10px 30px -10px rgba(0, 0, 0, 0.6), 0 0 15px rgba(0, 240, 255, 0.08);
  transition: var(--transition-normal);
}

.site-header.scrolled .nav-container {
  background: var(--bg-glass-heavy);
  border-color: rgba(0, 240, 255, 0.25);
  box-shadow: 0 12px 35px -8px rgba(0, 0, 0, 0.8), 0 0 25px rgba(0, 240, 255, 0.15);
}

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

.brand-icon {
  width: 36px;
  height: 36px;
  background: linear-gradient(135deg, var(--neon-cyan), var(--neon-magenta));
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 0 15px rgba(0, 240, 255, 0.5);
  position: relative;
  overflow: hidden;
}

.brand-icon svg {
  width: 22px;
  height: 22px;
  fill: #0a0a0f;
}

.brand-name {
  font-size: 1.25rem;
  font-weight: 800;
  color: #ffffff;
  letter-spacing: -0.01em;
  display: flex;
  align-items: baseline;
  gap: 6px;
}

.brand-sub {
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--neon-cyan);
  opacity: 0.9;
}

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

.nav-link {
  color: var(--text-secondary);
  text-decoration: none;
  font-size: 0.95rem;
  font-weight: 500;
  transition: var(--transition-fast);
  position: relative;
  padding: 6px 0;
}

.nav-link:hover, .nav-link.active {
  color: var(--neon-cyan);
  text-shadow: 0 0 8px rgba(0, 240, 255, 0.6);
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--neon-cyan), var(--neon-magenta));
  transition: width 0.3s ease;
  box-shadow: 0 0 8px var(--neon-cyan);
}

.nav-link:hover::after, .nav-link.active::after {
  width: 100%;
}

.nav-link-badge {
  background: linear-gradient(135deg, rgba(255, 0, 230, 0.2), rgba(124, 58, 237, 0.3));
  border: 1px solid var(--neon-magenta);
  color: #fff;
  padding: 3px 10px;
  border-radius: 20px;
  font-size: 0.8rem;
  box-shadow: 0 0 10px rgba(255, 0, 230, 0.3);
  transition: var(--transition-fast);
}
.nav-link-badge:hover {
  background: var(--neon-magenta);
  color: #0a0a0f;
  box-shadow: 0 0 15px var(--neon-magenta);
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 14px;
}

/* Mobile Menu Toggle */
.menu-toggle {
  display: none;
  background: transparent;
  border: none;
  color: var(--text-primary);
  font-size: 1.5rem;
  cursor: pointer;
  padding: 8px;
}

/* ==========================================================================
   Buttons & CTA
   ========================================================================== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-family: var(--font-heading);
  font-size: 0.95rem;
  font-weight: 700;
  padding: 12px 26px;
  border-radius: 10px;
  text-decoration: none;
  cursor: pointer;
  transition: var(--transition-normal);
  position: relative;
  overflow: hidden;
  border: none;
  outline: none;
  white-space: nowrap;
}

.btn-primary {
  background: linear-gradient(135deg, var(--neon-cyan) 0%, var(--neon-blue) 50%, var(--neon-magenta) 100%);
  color: #060810;
  box-shadow: 0 0 20px rgba(0, 240, 255, 0.4), inset 0 0 10px rgba(255, 255, 255, 0.3);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 0 30px rgba(0, 240, 255, 0.7), 0 0 45px rgba(255, 0, 230, 0.4);
  color: #000000;
}

.btn-secondary {
  background: rgba(22, 22, 36, 0.8);
  color: var(--text-primary);
  border: 1px solid var(--border-cyan);
  box-shadow: 0 0 15px rgba(0, 240, 255, 0.15);
}

.btn-secondary:hover {
  background: rgba(0, 240, 255, 0.12);
  border-color: var(--neon-cyan);
  color: #ffffff;
  transform: translateY(-2px);
  box-shadow: 0 0 25px rgba(0, 240, 255, 0.35);
}

.btn-pbn {
  background: linear-gradient(135deg, rgba(124, 58, 237, 0.3) 0%, rgba(255, 0, 230, 0.25) 100%);
  color: #ffffff;
  border: 1px solid var(--neon-magenta);
  box-shadow: 0 0 20px rgba(255, 0, 230, 0.25);
}

.btn-pbn:hover {
  background: linear-gradient(135deg, var(--neon-purple) 0%, var(--neon-magenta) 100%);
  color: #ffffff;
  transform: translateY(-2px);
  box-shadow: 0 0 30px rgba(255, 0, 230, 0.6);
}

.btn-lg {
  padding: 16px 36px;
  font-size: 1.05rem;
  border-radius: 12px;
}

.btn-block {
  width: 100%;
}

/* ==========================================================================
   Hero Section & Particle Canvas
   ========================================================================== */
.hero-section {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 150px 0 90px;
  overflow: hidden;
}

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

.hero-spotlight {
  position: absolute;
  width: 600px;
  height: 600px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(0, 240, 255, 0.15) 0%, rgba(255, 0, 230, 0.05) 50%, transparent 70%);
  filter: blur(60px);
  pointer-events: none;
  z-index: 1;
  transform: translate(-50%, -50%);
  transition: opacity 0.3s;
}

.hero-content {
  position: relative;
  z-index: 2;
  text-align: center;
  max-width: 920px;
  margin: 0 auto;
}

.hero-pill {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 16px;
  background: rgba(0, 240, 255, 0.08);
  border: 1px solid var(--border-cyan);
  border-radius: 30px;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--neon-cyan);
  margin-bottom: 24px;
  box-shadow: 0 0 15px rgba(0, 240, 255, 0.15);
  animation: pulsePill 3s infinite;
}

.pill-dot {
  width: 8px;
  height: 8px;
  background: var(--neon-cyan);
  border-radius: 50%;
  box-shadow: 0 0 8px var(--neon-cyan);
}

@keyframes pulsePill {
  0%, 100% { border-color: rgba(0, 240, 255, 0.3); box-shadow: 0 0 15px rgba(0, 240, 255, 0.15); }
  50% { border-color: rgba(255, 0, 230, 0.5); box-shadow: 0 0 25px rgba(255, 0, 230, 0.3); }
}

.hero-title {
  font-size: clamp(2.4rem, 5.5vw, 4.2rem);
  line-height: 1.15;
  margin-bottom: 24px;
  letter-spacing: -0.03em;
}

.hero-subtitle {
  font-size: clamp(1.05rem, 2vw, 1.35rem);
  color: var(--text-secondary);
  font-weight: 500;
  max-width: 760px;
  margin: 0 auto 36px;
  line-height: 1.7;
}

.hero-cta-group {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 16px;
  flex-wrap: wrap;
  margin-bottom: 48px;
}

.hero-metrics {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
  padding: 24px;
  background: var(--bg-glass);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid var(--border-glass);
  border-radius: 16px;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.4);
}

.metric-item {
  text-align: center;
  border-right: 1px solid rgba(255, 255, 255, 0.06);
}
.metric-item:last-child {
  border-right: none;
}

.metric-value {
  font-size: 1.75rem;
  font-weight: 800;
  color: var(--neon-cyan);
  font-family: var(--font-heading);
}

.metric-label {
  font-size: 0.85rem;
  color: var(--text-muted);
  margin-top: 4px;
}

/* ==========================================================================
   Section Headers
   ========================================================================== */
.section-header {
  text-align: center;
  max-width: 720px;
  margin: 0 auto 60px;
}

.section-tag {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--neon-cyan);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: 12px;
}

.section-title {
  font-size: clamp(1.8rem, 3.5vw, 2.6rem);
  margin-bottom: 16px;
  color: #ffffff;
}

.section-desc {
  font-size: 1.05rem;
  color: var(--text-secondary);
}

/* ==========================================================================
   Glassmorphism Cards & Hover Effects
   ========================================================================== */
.glass-card {
  background: var(--bg-glass-card);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid var(--border-glass);
  border-radius: 18px;
  padding: 32px;
  position: relative;
  transition: transform var(--transition-normal), border-color var(--transition-normal), box-shadow var(--transition-normal);
  overflow: hidden;
}

.glass-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--neon-cyan), transparent);
  opacity: 0;
  transition: opacity var(--transition-normal);
}

.glass-card:hover {
  transform: translateY(-6px);
  border-color: var(--border-cyan);
  box-shadow: 0 15px 35px -10px rgba(0, 0, 0, 0.7), 0 0 25px rgba(0, 240, 255, 0.25);
}

.glass-card:hover::before {
  opacity: 1;
}

/* 3 Core Advantages */
.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}

.feature-icon-wrapper {
  width: 60px;
  height: 60px;
  border-radius: 14px;
  background: rgba(0, 240, 255, 0.1);
  border: 1px solid var(--border-cyan);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 22px;
  color: var(--neon-cyan);
  font-size: 1.7rem;
  box-shadow: 0 0 15px rgba(0, 240, 255, 0.2);
  transition: var(--transition-normal);
}

.glass-card:hover .feature-icon-wrapper {
  background: var(--neon-cyan);
  color: #0a0a0f;
  transform: scale(1.08);
  box-shadow: 0 0 25px var(--neon-cyan);
}

.feature-title {
  font-size: 1.35rem;
  margin-bottom: 12px;
  color: #ffffff;
}

.feature-desc {
  font-size: 0.95rem;
  color: var(--text-secondary);
  line-height: 1.65;
}

/* Streaming & AI Cards */
.unlock-section {
  padding: 80px 0;
}

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

.unlock-card {
  padding: 24px;
  border-radius: 16px;
  background: var(--bg-glass-card);
  border: 1px solid var(--border-glass);
  transition: var(--transition-normal);
  text-align: center;
}

.unlock-card:hover {
  transform: translateY(-4px);
  border-color: var(--neon-magenta);
  box-shadow: 0 10px 25px rgba(0, 0, 0, 0.6), 0 0 20px rgba(255, 0, 230, 0.25);
}

.unlock-icon {
  width: 48px;
  height: 48px;
  margin: 0 auto 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.8rem;
}

.unlock-card-title {
  font-size: 1.15rem;
  color: #ffffff;
  margin-bottom: 6px;
}

.unlock-badge {
  display: inline-block;
  padding: 3px 10px;
  font-size: 0.75rem;
  border-radius: 20px;
  background: rgba(16, 185, 129, 0.15);
  color: #34d399;
  border: 1px solid rgba(16, 185, 129, 0.3);
  margin-bottom: 10px;
}

.unlock-desc {
  font-size: 0.85rem;
  color: var(--text-muted);
}

/* ==========================================================================
   Pricing Table
   ========================================================================== */
.pricing-section {
  padding: 80px 0;
}

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

.pricing-card {
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.pricing-card.featured {
  border-color: var(--neon-magenta);
  background: rgba(26, 20, 38, 0.8);
  box-shadow: 0 0 35px rgba(255, 0, 230, 0.25);
  transform: scale(1.03);
  position: relative;
}

.pricing-card.featured::before {
  background: linear-gradient(90deg, transparent, var(--neon-magenta), transparent);
  opacity: 1;
}

.popular-badge {
  position: absolute;
  top: -14px;
  left: 50%;
  transform: translateX(-50%);
  background: linear-gradient(135deg, var(--neon-magenta), var(--neon-purple));
  color: #ffffff;
  font-size: 0.75rem;
  font-weight: 700;
  padding: 4px 16px;
  border-radius: 20px;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  box-shadow: 0 0 15px rgba(255, 0, 230, 0.6);
}

.plan-header {
  margin-bottom: 24px;
}

.plan-name {
  font-size: 1.45rem;
  color: #ffffff;
  margin-bottom: 6px;
}

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

.plan-price-wrap {
  margin: 20px 0 24px;
  padding: 16px 0;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.plan-currency {
  font-size: 1.2rem;
  color: var(--neon-cyan);
  font-weight: 700;
  vertical-align: top;
  margin-right: 4px;
}

.plan-price {
  font-size: 3rem;
  font-weight: 800;
  color: #ffffff;
  font-family: var(--font-heading);
  line-height: 1;
}

.plan-period {
  font-size: 0.9rem;
  color: var(--text-muted);
}

.plan-sub-billing {
  font-size: 0.8rem;
  color: var(--text-dim);
  margin-top: 6px;
}

.plan-features {
  list-style: none;
  margin-bottom: 32px;
  flex-grow: 1;
}

.plan-feature-item {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 0.92rem;
  color: var(--text-secondary);
  margin-bottom: 12px;
}

.feature-check {
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: rgba(0, 240, 255, 0.15);
  color: var(--neon-cyan);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.75rem;
  flex-shrink: 0;
}

/* ==========================================================================
   Reviews / Testimonials
   ========================================================================== */
.reviews-section {
  padding: 80px 0;
}

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

.review-card {
  padding: 28px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.review-stars {
  color: #fbbf24;
  margin-bottom: 14px;
  font-size: 1rem;
  display: flex;
  gap: 3px;
}

.review-text {
  font-size: 0.95rem;
  color: var(--text-secondary);
  line-height: 1.65;
  margin-bottom: 20px;
  font-style: normal;
}

.review-author {
  display: flex;
  align-items: center;
  gap: 12px;
  padding-top: 14px;
  border-top: 1px solid rgba(255, 255, 255, 0.06);
}

.author-avatar {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--neon-cyan), var(--neon-purple));
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  color: #0a0a0f;
  font-family: var(--font-heading);
}

.author-info h4 {
  font-size: 0.95rem;
  color: #ffffff;
}

.author-tag {
  font-size: 0.78rem;
  color: var(--text-dim);
}

/* ==========================================================================
   FAQ Section (Accordion)
   ========================================================================== */
.faq-section {
  padding: 80px 0 120px;
}

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

.faq-item {
  border: 1px solid var(--border-glass);
  background: var(--bg-glass-card);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-radius: 14px;
  overflow: hidden;
  transition: var(--transition-normal);
}

.faq-item.active {
  border-color: var(--border-cyan);
  box-shadow: 0 5px 20px rgba(0, 240, 255, 0.15);
}

.faq-question {
  width: 100%;
  padding: 22px 28px;
  background: transparent;
  border: none;
  color: #ffffff;
  font-family: var(--font-heading);
  font-size: 1.1rem;
  font-weight: 600;
  text-align: left;
  display: flex;
  justify-content: space-between;
  align-items: center;
  cursor: pointer;
  transition: color var(--transition-fast);
}

.faq-question:hover {
  color: var(--neon-cyan);
}

.faq-icon {
  width: 24px;
  height: 24px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--neon-cyan);
  transition: transform var(--transition-normal);
  font-size: 1.3rem;
}

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

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s ease-out, padding 0.3s ease;
  color: var(--text-secondary);
  font-size: 0.95rem;
  line-height: 1.7;
  padding: 0 28px;
}

.faq-item.active .faq-answer {
  max-height: 300px;
  padding: 0 28px 24px;
}

/* ==========================================================================
   Footer (Strictly 4 links opening in new tab)
   ========================================================================== */
.site-footer {
  position: relative;
  background: #08080d;
  padding: 60px 0 40px;
  border-top: 1px solid rgba(255, 255, 255, 0.05);
}

.footer-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 24px;
  margin-bottom: 36px;
}

.footer-brand {
  display: flex;
  align-items: center;
  gap: 12px;
}

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

.footer-nav-link {
  color: var(--text-secondary);
  text-decoration: none;
  font-size: 0.95rem;
  font-weight: 500;
  transition: var(--transition-fast);
  position: relative;
}

.footer-nav-link:hover {
  color: var(--neon-cyan);
  text-shadow: 0 0 10px rgba(0, 240, 255, 0.7);
}

.footer-bottom {
  text-align: center;
  padding-top: 24px;
  border-top: 1px solid rgba(255, 255, 255, 0.04);
  font-size: 0.85rem;
  color: var(--text-dim);
}

/* ==========================================================================
   Article Hub & Article Page Specific Styling
   ========================================================================== */
.article-hub-header {
  padding: 160px 0 60px;
  text-align: center;
}

.articles-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
  margin-bottom: 80px;
}

.article-card {
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  text-decoration: none;
  color: inherit;
}

.article-meta {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 12px;
  font-size: 0.8rem;
  color: var(--text-dim);
}

.article-badge {
  background: rgba(0, 240, 255, 0.1);
  color: var(--neon-cyan);
  border: 1px solid var(--border-cyan);
  padding: 2px 8px;
  border-radius: 6px;
}

.article-title {
  font-size: 1.25rem;
  color: #ffffff;
  line-height: 1.4;
  margin-bottom: 12px;
  transition: color var(--transition-fast);
}

.article-card:hover .article-title {
  color: var(--neon-cyan);
}

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

.article-readmore {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--neon-magenta);
}

.article-readmore:hover {
  text-decoration: underline;
}

/* Single Article Content Container */
.article-container {
  max-width: 860px;
  margin: 140px auto 80px;
  padding: 0 24px;
}

.article-header {
  margin-bottom: 40px;
  text-align: left;
}

.article-header h1 {
  font-size: clamp(2rem, 4vw, 2.8rem);
  line-height: 1.25;
  margin-bottom: 18px;
}

.article-body {
  font-size: 1.05rem;
  line-height: 1.85;
  color: var(--text-secondary);
}

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

.article-body h2 {
  font-size: 1.7rem;
  color: #ffffff;
  margin: 40px 0 16px;
  padding-bottom: 8px;
  border-bottom: 1px solid rgba(0, 240, 255, 0.2);
}

.article-body h3 {
  font-size: 1.3rem;
  color: var(--neon-cyan);
  margin: 28px 0 12px;
}

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

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

.article-body blockquote {
  border-left: 3px solid var(--neon-magenta);
  background: rgba(255, 0, 230, 0.05);
  padding: 16px 20px;
  border-radius: 0 10px 10px 0;
  margin: 24px 0;
  color: var(--text-primary);
}

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

.article-body a:hover {
  color: var(--neon-magenta);
}

.article-body table {
  width: 100%;
  border-collapse: collapse;
  margin: 28px 0;
  background: var(--bg-glass-card);
  border-radius: 10px;
  overflow: hidden;
}

.article-body th, .article-body td {
  padding: 14px 18px;
  text-align: left;
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}

.article-body th {
  background: rgba(0, 240, 255, 0.08);
  color: var(--neon-cyan);
  font-weight: 700;
}

/* ==========================================================================
   Responsive Adaptations (@media)
   ========================================================================== */
@media (max-width: 1024px) {
  .features-grid, .pricing-grid, .reviews-grid, .articles-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .unlock-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .pricing-card.featured {
    transform: none;
  }
}

@media (max-width: 768px) {
  .site-header {
    top: 8px;
    padding: 0 12px;
  }
  .nav-container {
    padding: 10px 16px;
  }
  .menu-toggle {
    display: block;
  }
  .nav-links {
    position: fixed;
    top: 70px;
    left: 12px;
    right: 12px;
    background: var(--bg-glass-heavy);
    backdrop-filter: blur(25px);
    -webkit-backdrop-filter: blur(25px);
    border: 1px solid var(--border-glass);
    border-radius: 16px;
    padding: 24px;
    flex-direction: column;
    align-items: flex-start;
    gap: 18px;
    display: none;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.8);
  }
  .nav-links.show {
    display: flex;
  }
  .nav-link {
    font-size: 1.1rem;
    width: 100%;
    padding: 10px 0;
  }
  .nav-actions {
    display: none;
  }
  
  .hero-section {
    padding: 120px 0 60px;
  }
  .hero-metrics {
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
  }
  .metric-item:nth-child(2) {
    border-right: none;
  }
  .metric-item:nth-child(3) {
    border-top: 1px solid rgba(255, 255, 255, 0.06);
    padding-top: 14px;
  }
  .metric-item:nth-child(4) {
    border-top: 1px solid rgba(255, 255, 255, 0.06);
    padding-top: 14px;
    border-right: none;
  }

  .features-grid, .pricing-grid, .reviews-grid, .unlock-grid, .articles-grid {
    grid-template-columns: 1fr;
  }

  .footer-top {
    flex-direction: column;
    align-items: flex-start;
  }
  .footer-nav-list {
    flex-direction: column;
    align-items: flex-start;
    gap: 16px;
  }

  .btn {
    width: 100%;
    padding: 14px 20px;
  }
}