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

/* CSS Variables for White & Cyan Theme */
:root {
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  --font-title: 'Outfit', sans-serif;
  
  /* Palette */
  --primary-dark: #0f766e;     /* Deep Teal */
  --primary: #0d9488;          /* Classic Teal */
  --primary-light: #14b8a6;    /* Medium Teal */
  --accent: #06b6d4;           /* Vibrant Cyan */
  --accent-light: #22d3ee;     /* Light Cyan */
  --accent-glow: rgba(34, 211, 238, 0.15);
  
  --bg-primary: #ffffff;
  --bg-secondary: #f8fafc;
  --bg-cyan-tint: #f0fdfa;     /* Cyan 50 */
  --bg-card: #ffffff;
  
  --text-main: #0f172a;        /* Slate 900 */
  --text-muted: #475569;       /* Slate 600 */
  --text-light: #94a3b8;       /* Slate 400 */
  
  --border-color: #e2e8f0;
  --border-cyan-light: #ccfbf1;
  
  --shadow-sm: 0 2px 4px rgba(15, 118, 110, 0.04);
  --shadow-md: 0 10px 25px -5px rgba(15, 118, 110, 0.08), 0 8px 16px -6px rgba(15, 118, 110, 0.08);
  --shadow-lg: 0 20px 40px -15px rgba(15, 118, 110, 0.12);
  --shadow-glow: 0 0 25px rgba(6, 182, 212, 0.4);
  
  --radius-sm: 8px;
  --radius-md: 16px;
  --radius-lg: 24px;
  --radius-full: 9999px;
  
  --transition-fast: 0.2s ease;
  --transition-normal: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

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

html {
  scroll-behavior: smooth;
  font-size: 16px;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font-sans);
  background-color: var(--bg-primary);
  color: var(--text-main);
  line-height: 1.6;
  overflow-x: hidden;
}

/* Smooth transition for theme colors if toggle */
a {
  color: inherit;
  text-decoration: none;
  transition: color var(--transition-fast);
}

ul {
  list-style: none;
}

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

/* Scrollbar styles */
::-webkit-scrollbar {
  width: 8px;
  height: 8px;
}
::-webkit-scrollbar-track {
  background: var(--bg-secondary);
}
::-webkit-scrollbar-thumb {
  background: var(--primary-light);
  border-radius: var(--radius-full);
}
::-webkit-scrollbar-thumb:hover {
  background: var(--primary);
}

/* Container */
.container {
  width: 100%;
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 24px;
}

/* Gradient Background Dynamic Elements */
.bg-decorations {
  position: absolute;
  width: 100%;
  height: 100%;
  top: 0;
  left: 0;
  pointer-events: none;
  z-index: 0;
  overflow: hidden;
}

.glow-circle {
  position: absolute;
  border-radius: var(--radius-full);
  filter: blur(120px);
  opacity: 0.45;
  animation: float-slow 20s infinite alternate;
}

.glow-circle-1 {
  width: 500px;
  height: 500px;
  background: radial-gradient(circle, var(--accent-light) 0%, rgba(255,255,255,0) 70%);
  top: -100px;
  right: -100px;
}

.glow-circle-2 {
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, var(--bg-cyan-tint) 0%, rgba(255,255,255,0) 70%);
  top: 40%;
  left: -200px;
  animation-delay: -5s;
}

.glow-circle-3 {
  width: 400px;
  height: 400px;
  background: radial-gradient(circle, var(--accent-glow) 0%, rgba(255,255,255,0) 70%);
  bottom: 10%;
  right: -50px;
  animation-delay: -10s;
}

@keyframes float-slow {
  0% {
    transform: translate(0, 0) scale(1);
  }
  100% {
    transform: translate(50px, 50px) scale(1.1);
  }
}

/* Header & Navigation */
header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  background: rgba(255, 255, 255, 0.8);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid rgba(226, 232, 240, 0.5);
  transition: all var(--transition-normal);
}

header.scrolled {
  padding: 12px 0;
  box-shadow: var(--shadow-sm);
  background: rgba(255, 255, 255, 0.92);
}

.nav-wrapper {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 80px;
  transition: height var(--transition-normal);
}

header.scrolled .nav-wrapper {
  height: 64px;
}

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-title);
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--primary-dark);
}

.logo-icon {
  width: 38px;
  height: 38px;
  background: linear-gradient(135deg, var(--accent) 0%, var(--primary) 100%);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-weight: bold;
  box-shadow: 0 4px 12px rgba(13, 148, 136, 0.35);
}

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

.nav-menu {
  display: flex;
  align-items: center;
  gap: 32px;
}

.nav-link {
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--text-muted);
  position: relative;
  padding: 8px 0;
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--accent), var(--primary));
  transition: width var(--transition-normal);
  border-radius: var(--radius-full);
}

.nav-link:hover {
  color: var(--primary);
}

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

.nav-cta {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, var(--accent) 0%, var(--primary) 100%);
  color: #ffffff;
  padding: 10px 24px;
  border-radius: var(--radius-full);
  font-weight: 600;
  font-size: 0.95rem;
  box-shadow: 0 4px 15px rgba(6, 182, 212, 0.25);
  transition: all var(--transition-normal);
}

.nav-cta:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(6, 182, 212, 0.4);
  color: #ffffff;
}

/* Mobile Nav Toggle */
.menu-toggle {
  display: none;
  flex-direction: column;
  gap: 6px;
  cursor: pointer;
  border: none;
  background: transparent;
  padding: 4px;
}

.menu-toggle span {
  display: block;
  width: 26px;
  height: 2.5px;
  background-color: var(--text-main);
  border-radius: 2px;
  transition: all var(--transition-normal);
}

/* Hero Section */
.hero {
  position: relative;
  padding: 160px 0 100px;
  background-color: var(--bg-primary);
  overflow: hidden;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 48px;
  align-items: center;
  position: relative;
  z-index: 10;
}

.hero-content {
  max-width: 680px;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--bg-cyan-tint);
  border: 1px solid var(--border-cyan-light);
  color: var(--primary-dark);
  padding: 8px 16px;
  border-radius: var(--radius-full);
  font-size: 0.875rem;
  font-weight: 600;
  margin-bottom: 24px;
  box-shadow: var(--shadow-sm);
}

.hero-badge span.pulse-dot {
  width: 8px;
  height: 8px;
  background-color: var(--accent);
  border-radius: 50%;
  position: relative;
}

.hero-badge span.pulse-dot::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: var(--accent);
  border-radius: 50%;
  animation: pulse-ring 1.5s infinite ease-in-out;
}

@keyframes pulse-ring {
  0% { transform: scale(0.85); opacity: 0.8; }
  100% { transform: scale(2.2); opacity: 0; }
}

.hero-title {
  font-family: var(--font-title);
  font-size: 3.5rem;
  font-weight: 800;
  line-height: 1.15;
  margin-bottom: 24px;
  color: var(--text-main);
  letter-spacing: -0.02em;
}

.hero-title span.highlight {
  background: linear-gradient(120deg, var(--accent) 0%, var(--primary) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero-desc {
  font-size: 1.125rem;
  color: var(--text-muted);
  margin-bottom: 40px;
  line-height: 1.75;
}

.hero-actions {
  display: flex;
  align-items: center;
  gap: 20px;
  margin-bottom: 48px;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-sans);
  font-weight: 600;
  font-size: 1rem;
  padding: 14px 32px;
  border-radius: var(--radius-md);
  transition: all var(--transition-normal);
  cursor: pointer;
  border: none;
}

.btn-primary {
  background: linear-gradient(135deg, var(--accent) 0%, var(--primary) 100%);
  color: #fff;
  box-shadow: 0 8px 25px rgba(6, 182, 212, 0.3);
}

.btn-primary:hover {
  transform: translateY(-3px);
  box-shadow: 0 12px 30px rgba(6, 182, 212, 0.45);
  color: #fff;
}

.btn-secondary {
  background-color: var(--bg-cyan-tint);
  border: 1px solid var(--border-cyan-light);
  color: var(--primary-dark);
}

.btn-secondary:hover {
  background-color: #e6fffa;
  transform: translateY(-3px);
}

.hero-stats {
  display: flex;
  gap: 40px;
  border-top: 1px solid var(--border-color);
  padding-top: 32px;
}

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

.stat-val {
  font-family: var(--font-title);
  font-size: 1.75rem;
  font-weight: 700;
  color: var(--primary-dark);
}

.stat-lbl {
  font-size: 0.875rem;
  color: var(--text-light);
  margin-top: 4px;
}

/* Hero Visual Art (Cyan Glass Cards) */
.hero-visual {
  position: relative;
  display: flex;
  justify-content: center;
  align-items: center;
}

.visual-scene {
  position: relative;
  width: 100%;
  max-width: 460px;
  height: 400px;
}

.cyan-blob {
  position: absolute;
  width: 320px;
  height: 320px;
  background: linear-gradient(135deg, rgba(34, 211, 238, 0.2) 0%, rgba(13, 148, 136, 0.15) 100%);
  border-radius: 40% 60% 70% 30% / 40% 50% 60% 50%;
  top: 40px;
  left: 60px;
  animation: blob-bounce 12s infinite alternate ease-in-out;
  z-index: 1;
}

@keyframes blob-bounce {
  0% { border-radius: 40% 60% 70% 30% / 40% 50% 60% 50%; transform: rotate(0deg); }
  100% { border-radius: 60% 40% 30% 70% / 50% 60% 40% 50%; transform: rotate(45deg) scale(1.1); }
}

.glass-card-mockup {
  position: absolute;
  width: 280px;
  background: rgba(255, 255, 255, 0.7);
  backdrop-filter: blur(15px);
  -webkit-backdrop-filter: blur(15px);
  border: 1px solid rgba(255, 255, 255, 0.6);
  border-radius: var(--radius-md);
  padding: 24px;
  box-shadow: var(--shadow-lg);
  z-index: 2;
  transition: transform var(--transition-normal);
}

.card-1 {
  top: 10px;
  left: 10px;
  transform: rotate(-4deg);
  animation: float-card-1 6s infinite alternate ease-in-out;
}

.card-2 {
  bottom: 20px;
  right: 10px;
  transform: rotate(3deg);
  animation: float-card-2 8s infinite alternate ease-in-out;
}

@keyframes float-card-1 {
  0% { transform: translateY(0) rotate(-4deg); }
  100% { transform: translateY(-15px) rotate(-2deg); }
}

@keyframes float-card-2 {
  0% { transform: translateY(0) rotate(3deg); }
  100% { transform: translateY(12px) rotate(5deg); }
}

.mockup-header {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 16px;
}

.mockup-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background-color: var(--accent);
}

.mockup-dot-2 { background-color: var(--primary-light); }
.mockup-dot-3 { background-color: #cbd5e1; }

.mockup-body {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.mockup-line {
  height: 8px;
  background-color: rgba(15, 118, 110, 0.08);
  border-radius: var(--radius-full);
}

.mockup-line.long { width: 90%; }
.mockup-line.medium { width: 60%; }
.mockup-line.short { width: 40%; }
.mockup-line.highlight-line {
  background-color: rgba(34, 211, 238, 0.2);
}

/* Sections Global Styling */
section {
  padding: 100px 0;
  position: relative;
  z-index: 10;
}

.section-bg-secondary {
  background-color: var(--bg-secondary);
}

.section-bg-cyan {
  background-color: var(--bg-cyan-tint);
}

.section-header {
  text-align: center;
  max-width: 650px;
  margin: 0 auto 60px;
}

.section-subtitle {
  font-size: 0.9rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  color: var(--primary);
  margin-bottom: 16px;
  display: inline-block;
}

.section-title {
  font-family: var(--font-title);
  font-size: 2.5rem;
  font-weight: 800;
  color: var(--text-main);
  line-height: 1.25;
  margin-bottom: 20px;
}

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

/* Core Advantages Section */
.advantages-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 32px;
}

.advantage-card {
  background-color: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 40px 32px;
  box-shadow: var(--shadow-sm);
  transition: all var(--transition-normal);
  position: relative;
  overflow: hidden;
}

.advantage-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 4px;
  height: 0;
  background: linear-gradient(180deg, var(--accent), var(--primary));
  transition: height var(--transition-normal);
}

.advantage-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-lg);
  border-color: var(--border-cyan-light);
}

.advantage-card:hover::before {
  height: 100%;
}

.card-icon {
  width: 56px;
  height: 56px;
  background-color: var(--bg-cyan-tint);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--primary);
  font-size: 1.75rem;
  margin-bottom: 24px;
  transition: all var(--transition-normal);
}

.advantage-card:hover .card-icon {
  background: linear-gradient(135deg, var(--accent) 0%, var(--primary) 100%);
  color: #fff;
  transform: scale(1.05);
}

.card-title {
  font-family: var(--font-title);
  font-size: 1.25rem;
  font-weight: 700;
  margin-bottom: 16px;
  color: var(--text-main);
}

.card-desc {
  font-size: 0.95rem;
  color: var(--text-muted);
  line-height: 1.6;
}

/* Nodes & Latency Section */
.status-panel {
  background-color: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
  padding: 40px;
  position: relative;
  overflow: hidden;
}

.panel-top {
  display: flex;
  justify-content: space-between;
  align-items: center;
  border-bottom: 1px solid var(--border-color);
  padding-bottom: 24px;
  margin-bottom: 32px;
  flex-wrap: wrap;
  gap: 20px;
}

.status-summary {
  display: flex;
  align-items: center;
  gap: 12px;
}

.status-dot-large {
  width: 14px;
  height: 14px;
  background-color: #10b981; /* Green */
  border-radius: 50%;
  position: relative;
}

.status-dot-large::after {
  content: '';
  position: absolute;
  top: -4px;
  left: -4px;
  right: -4px;
  bottom: -4px;
  border: 2px solid #10b981;
  border-radius: 50%;
  animation: pulse-ring 2s infinite;
  opacity: 0.6;
}

.status-text-lg {
  font-family: var(--font-title);
  font-weight: 600;
  font-size: 1.125rem;
  color: var(--text-main);
}

.latency-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 24px;
  margin-bottom: 32px;
}

.node-card {
  background-color: var(--bg-secondary);
  border: 1px solid rgba(226, 232, 240, 0.8);
  border-radius: var(--radius-md);
  padding: 20px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  transition: all var(--transition-normal);
}

.node-card:hover {
  background-color: #fff;
  border-color: var(--border-cyan-light);
  transform: translateY(-2px);
  box-shadow: var(--shadow-sm);
}

.node-info {
  display: flex;
  align-items: center;
  gap: 12px;
}

.node-flag {
  font-size: 1.5rem;
  width: 32px;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.node-name {
  font-weight: 600;
  font-size: 0.95rem;
  color: var(--text-main);
}

.node-type {
  font-size: 0.75rem;
  color: var(--text-light);
  background-color: rgba(15, 118, 110, 0.08);
  padding: 2px 6px;
  border-radius: var(--radius-sm);
  margin-top: 2px;
  display: inline-block;
}

.node-latency {
  text-align: right;
}

.latency-val {
  font-family: var(--font-title);
  font-weight: 700;
  font-size: 1.1rem;
  color: #10b981; /* Green */
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 6px;
}

.latency-val.medium {
  color: #f59e0b; /* Orange */
}

.latency-indicator {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background-color: #10b981;
}

.latency-indicator.medium {
  background-color: #f59e0b;
}

.latency-lbl {
  font-size: 0.75rem;
  color: var(--text-light);
  margin-top: 2px;
}

.panel-bottom {
  display: flex;
  justify-content: center;
}

/* Pricing Section */
.pricing-toggle-wrapper {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 16px;
  margin-bottom: 48px;
}

.toggle-label {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--text-muted);
}

.toggle-label.active {
  color: var(--primary-dark);
}

.toggle-switch {
  position: relative;
  width: 60px;
  height: 32px;
  background-color: var(--primary-light);
  border-radius: var(--radius-full);
  cursor: pointer;
  transition: background-color var(--transition-normal);
}

.toggle-switch::after {
  content: '';
  position: absolute;
  width: 24px;
  height: 24px;
  border-radius: 50%;
  background-color: #fff;
  top: 4px;
  left: 4px;
  transition: transform var(--transition-normal);
  box-shadow: 0 2px 4px rgba(0,0,0,0.1);
}

.toggle-switch.yearly::after {
  transform: translateX(28px);
}

.pricing-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 32px;
  max-width: 1100px;
  margin: 0 auto;
}

.pricing-card {
  background-color: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 48px 36px;
  position: relative;
  transition: all var(--transition-normal);
  box-shadow: var(--shadow-sm);
  display: flex;
  flex-direction: column;
}

.pricing-card.popular {
  border-color: var(--accent);
  box-shadow: var(--shadow-md);
  transform: scale(1.03);
  background-color: var(--bg-cyan-tint);
}

.pricing-card.popular::before {
  content: '推荐';
  position: absolute;
  top: 20px;
  right: 20px;
  background: linear-gradient(135deg, var(--accent) 0%, var(--primary) 100%);
  color: #fff;
  font-size: 0.75rem;
  font-weight: 700;
  padding: 4px 12px;
  border-radius: var(--radius-full);
}

.pricing-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-lg);
}

.pricing-card.popular:hover {
  transform: translateY(-8px) scale(1.03);
}

.plan-name {
  font-family: var(--font-title);
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--text-main);
  margin-bottom: 8px;
}

.plan-desc {
  font-size: 0.875rem;
  color: var(--text-muted);
  margin-bottom: 32px;
}

.plan-price-wrapper {
  margin-bottom: 32px;
  display: flex;
  align-items: baseline;
}

.currency {
  font-family: var(--font-title);
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--text-main);
}

.price {
  font-family: var(--font-title);
  font-size: 3.5rem;
  font-weight: 800;
  color: var(--text-main);
  line-height: 1;
}

.period {
  font-size: 0.95rem;
  color: var(--text-light);
  margin-left: 6px;
}

.plan-features {
  display: flex;
  flex-direction: column;
  gap: 16px;
  margin-bottom: 40px;
  flex-grow: 1;
}

.feature-item {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 0.95rem;
  color: var(--text-muted);
}

.feature-icon {
  color: var(--primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1rem;
}

.pricing-card.popular .feature-icon {
  color: var(--accent);
}

.plan-btn {
  width: 100%;
}

/* Reviews / Testimonials Section */
.reviews-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 32px;
}

.review-card {
  background-color: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 36px;
  box-shadow: var(--shadow-sm);
  transition: all var(--transition-normal);
}

.review-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
  border-color: var(--border-cyan-light);
}

.review-stars {
  color: #f59e0b; /* Golden stars */
  display: flex;
  gap: 4px;
  margin-bottom: 20px;
}

.review-text {
  font-size: 0.95rem;
  color: var(--text-muted);
  line-height: 1.6;
  margin-bottom: 24px;
  font-style: italic;
}

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

.user-avatar {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--accent-light) 0%, var(--border-cyan-light) 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--primary-dark);
  font-weight: 700;
  font-family: var(--font-title);
  font-size: 1.1rem;
}

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

.user-meta-role {
  font-size: 0.8rem;
  color: var(--text-light);
  margin-top: 2px;
}

/* FAQ Section */
.faq-wrapper {
  max-width: 800px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 20px;
}

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

.faq-item:hover {
  border-color: var(--border-cyan-light);
  box-shadow: var(--shadow-sm);
}

.faq-question {
  width: 100%;
  padding: 24px 32px;
  background: none;
  border: none;
  text-align: left;
  display: flex;
  justify-content: space-between;
  align-items: center;
  cursor: pointer;
  font-family: var(--font-title);
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--text-main);
  gap: 16px;
}

.faq-icon {
  width: 24px;
  height: 24px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  background-color: var(--bg-secondary);
  color: var(--primary);
  font-size: 1.2rem;
  transition: all var(--transition-normal);
  flex-shrink: 0;
}

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

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height var(--transition-normal);
}

.faq-answer-inner {
  padding: 0 32px 24px;
  color: var(--text-muted);
  font-size: 0.95rem;
  line-height: 1.6;
}

/* Knowledge Base (Articles) Section */
.kb-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 32px;
}

.kb-card {
  background-color: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  display: flex;
  flex-direction: column;
  transition: all var(--transition-normal);
}

.kb-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
  border-color: var(--border-cyan-light);
}

.kb-card-image {
  height: 180px;
  background: linear-gradient(135deg, var(--bg-cyan-tint) 0%, var(--accent-light) 100%);
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--primary-dark);
  font-size: 3rem;
}

.kb-card-image::after {
  content: '';
  position: absolute;
  width: 100%;
  height: 100%;
  background: linear-gradient(180deg, rgba(255,255,255,0) 50%, rgba(255,255,255,0.8) 100%);
}

.kb-card-content {
  padding: 24px;
  display: flex;
  flex-direction: column;
  flex-grow: 1;
}

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

.kb-tag {
  background-color: var(--bg-cyan-tint);
  color: var(--primary-dark);
  padding: 2px 8px;
  border-radius: var(--radius-sm);
  font-weight: 600;
  font-size: 0.75rem;
}

.kb-title {
  font-family: var(--font-title);
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--text-main);
  margin-bottom: 12px;
  line-height: 1.4;
}

.kb-desc {
  font-size: 0.875rem;
  color: var(--text-muted);
  line-height: 1.6;
  margin-bottom: 20px;
  flex-grow: 1;
}

.kb-more {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 0.9rem;
  font-weight: 700;
  color: var(--primary);
  transition: gap var(--transition-fast);
}

.kb-card:hover .kb-more {
  color: var(--accent);
  gap: 10px;
}

/* Article Template Custom Styles */
.article-header {
  padding: 140px 0 60px;
  background-color: var(--bg-cyan-tint);
  border-bottom: 1px solid var(--border-color);
  position: relative;
  text-align: center;
}

.article-meta-info {
  display: flex;
  justify-content: center;
  gap: 20px;
  margin-top: 20px;
  font-size: 0.9rem;
  color: var(--text-muted);
}

.article-content-wrapper {
  padding: 60px 0;
  max-width: 800px;
  margin: 0 auto;
}

.article-body {
  font-size: 1.05rem;
  line-height: 1.8;
  color: var(--text-main);
}

.article-body h2 {
  font-family: var(--font-title);
  font-size: 1.75rem;
  margin: 40px 0 20px;
  color: var(--primary-dark);
}

.article-body h3 {
  font-family: var(--font-title);
  font-size: 1.35rem;
  margin: 30px 0 15px;
  color: var(--text-main);
}

.article-body p {
  margin-bottom: 24px;
}

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

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

.article-body blockquote {
  border-left: 4px solid var(--accent);
  padding: 16px 24px;
  background-color: var(--bg-secondary);
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
  margin: 32px 0;
  font-style: italic;
  color: var(--text-muted);
}

.article-body code {
  background-color: var(--bg-secondary);
  padding: 2px 6px;
  border-radius: var(--radius-sm);
  font-family: monospace;
  font-size: 0.9em;
  color: #c7254e;
}

.article-body pre {
  background-color: var(--text-main);
  color: #fff;
  padding: 20px;
  border-radius: var(--radius-md);
  overflow-x: auto;
  margin-bottom: 24px;
}

.article-body pre code {
  background: none;
  color: inherit;
  padding: 0;
  font-size: 0.9rem;
}

.cta-box {
  background: linear-gradient(135deg, var(--bg-cyan-tint) 0%, rgba(34, 211, 238, 0.1) 100%);
  border: 1px solid var(--border-cyan-light);
  border-radius: var(--radius-md);
  padding: 32px;
  margin: 48px 0;
  text-align: center;
}

.cta-box h3 {
  margin-top: 0 !important;
}

/* Footer Section */
footer {
  background-color: #0f172a; /* Dark background */
  color: #94a3b8;
  padding: 80px 0 30px;
  border-top: 1px solid rgba(255,255,255,0.05);
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr repeat(3, 1fr);
  gap: 48px;
  margin-bottom: 60px;
}

.footer-brand .logo {
  color: #fff;
  margin-bottom: 20px;
}

.footer-brand .logo-icon {
  box-shadow: 0 4px 12px rgba(6, 182, 212, 0.4);
}

.footer-desc {
  font-size: 0.9rem;
  line-height: 1.6;
  margin-bottom: 24px;
  max-width: 320px;
}

.footer-links-title {
  color: #fff;
  font-family: var(--font-title);
  font-weight: 700;
  font-size: 1.05rem;
  margin-bottom: 24px;
}

.footer-links-list {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.footer-link {
  font-size: 0.9rem;
  transition: all var(--transition-fast);
}

.footer-link:hover {
  color: var(--accent-light);
  transform: translateX(4px);
}

.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.08);
  padding-top: 30px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 20px;
  font-size: 0.85rem;
}

/* Responsive adjustments */
@media (max-width: 1024px) {
  .hero-title {
    font-size: 3rem;
  }
}

@media (max-width: 768px) {
  header {
    padding: 16px 0;
  }
  
  .nav-menu {
    position: fixed;
    top: 80px;
    left: -100%;
    width: 100%;
    height: calc(100vh - 80px);
    background-color: var(--bg-primary);
    flex-direction: column;
    align-items: center;
    justify-content: flex-start;
    padding-top: 40px;
    gap: 24px;
    transition: left var(--transition-normal);
    box-shadow: 0 10px 15px rgba(0,0,0,0.05);
    z-index: 999;
  }
  
  .nav-menu.active {
    left: 0;
  }
  
  .menu-toggle {
    display: flex;
  }
  
  /* Menu icon active state */
  .menu-toggle.active span:nth-child(1) {
    transform: translateY(8.5px) rotate(45deg);
  }
  
  .menu-toggle.active span:nth-child(2) {
    opacity: 0;
  }
  
  .menu-toggle.active span:nth-child(3) {
    transform: translateY(-8.5px) rotate(-45deg);
  }
  
  .hero {
    padding: 120px 0 60px;
  }
  
  .hero-grid {
    grid-template-columns: 1fr;
    gap: 40px;
  }
  
  .hero-content {
    text-align: center;
    max-width: 100%;
  }
  
  .hero-badge {
    justify-content: center;
  }
  
  .hero-actions {
    justify-content: center;
  }
  
  .hero-stats {
    justify-content: center;
  }
  
  .hero-visual {
    order: -1;
  }
  
  .visual-scene {
    height: 300px;
    max-width: 360px;
  }
  
  .cyan-blob {
    width: 240px;
    height: 240px;
    top: 20px;
    left: 40px;
  }
  
  .glass-card-mockup {
    width: 200px;
    padding: 16px;
  }
  
  .card-1 {
    top: 0;
  }
  
  .card-2 {
    bottom: 0;
  }
  
  section {
    padding: 60px 0;
  }
  
  .section-title {
    font-size: 2rem;
  }
  
  .status-panel {
    padding: 24px;
  }
  
  .pricing-grid {
    grid-template-columns: 1fr;
    max-width: 450px;
  }
  
  .pricing-card.popular {
    transform: none;
  }
  
  .pricing-card.popular:hover {
    transform: translateY(-8px);
  }
  
  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: 32px;
  }
}

@media (max-width: 480px) {
  .hero-title {
    font-size: 2.25rem;
  }
  
  .hero-actions {
    flex-direction: column;
    width: 100%;
  }
  
  .hero-actions .btn {
    width: 100%;
  }
  
  .hero-stats {
    flex-wrap: wrap;
    gap: 20px;
  }
  
  .footer-grid {
    grid-template-columns: 1fr;
  }
  
  .footer-bottom {
    flex-direction: column;
    text-align: center;
  }
}