/* 
  红杏云 Network Accelerator - White & Iridescent Rainbow SaaS Design System
  Style Architecture: White Base + Technical Grid + Vibrant Rainbow Spectrum Glows & Gradients
*/

:root {
  --bg-main: #ffffff;
  --bg-subtle: #f8fafc;
  --bg-card: rgba(255, 255, 255, 0.9);
  --bg-card-hover: #ffffff;
  --bg-card-border: rgba(226, 232, 240, 0.9);
  
  /* Rainbow Accent Palette */
  --rainbow-red: #ef4444;
  --rainbow-orange: #f97316;
  --rainbow-yellow: #eab308;
  --rainbow-green: #10b981;
  --rainbow-cyan: #06b6d4;
  --rainbow-blue: #3b82f6;
  --rainbow-purple: #8b5cf6;
  --rainbow-pink: #ec4899;
  
  --primary: #3b82f6;
  --primary-hover: #2563eb;
  
  --text-main: #0f172a;
  --text-secondary: #334155;
  --text-muted: #64748b;
  
  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "Noto Sans", sans-serif;
  --radius-sm: 10px;
  --radius-md: 16px;
  --radius-lg: 24px;
  --radius-xl: 32px;
  
  --transition-fast: 0.2s ease;
  --transition-normal: 0.35s cubic-bezier(0.16, 1, 0.3, 1);
  --container-max: 1240px;
}

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

html {
  font-family: var(--font-sans);
  background-color: var(--bg-main);
  color: var(--text-main);
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  line-height: 1.6;
  overflow-x: hidden;
  min-height: 100vh;
  position: relative;
  background-color: var(--bg-main);
  /* Faint Technical Grid Lines */
  background-image: 
    linear-gradient(to right, rgba(226, 232, 240, 0.5) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(226, 232, 240, 0.5) 1px, transparent 1px);
  background-size: 36px 36px;
}

/* Background Multi-Color Rainbow Glow Orbs */
.bg-glow {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  pointer-events: none;
  z-index: -1;
  overflow: hidden;
}

.glow-orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(130px);
  opacity: 0.45;
}

.glow-orb-1 {
  top: -10%;
  left: 15%;
  width: 650px;
  height: 650px;
  background: radial-gradient(circle, rgba(59, 130, 246, 0.35), transparent 70%);
}

.glow-orb-2 {
  top: 25%;
  right: -5%;
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(236, 72, 153, 0.3), transparent 70%);
}

.glow-orb-3 {
  bottom: 15%;
  left: -5%;
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(16, 185, 129, 0.3), transparent 70%);
}

.glow-orb-4 {
  top: 60%;
  right: 20%;
  width: 500px;
  height: 500px;
  background: radial-gradient(circle, rgba(249, 115, 22, 0.25), transparent 70%);
}

/* Container */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 1.25rem;
}

/* Typography */
h1, h2, h3, h4 {
  color: var(--text-main);
  font-weight: 700;
  line-height: 1.25;
  letter-spacing: -0.02em;
}

h1 {
  font-size: clamp(2.2rem, 5vw, 3.8rem);
}

h2 {
  font-size: clamp(1.75rem, 3.5vw, 2.5rem);
}

h3 {
  font-size: clamp(1.2rem, 2vw, 1.5rem);
}

p {
  color: var(--text-secondary);
  font-size: 1rem;
}

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

/* Stunning Rainbow Spectrum Gradient Text */
.gradient-text {
  background: linear-gradient(135deg, #ef4444 0%, #f97316 18%, #eab308 36%, #10b981 54%, #3b82f6 72%, #8b5cf6 90%, #ec4899 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  font-weight: 800;
}

.gradient-text-purple {
  background: linear-gradient(135deg, #8b5cf6 0%, #ec4899 50%, #f43f5e 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

/* Rainbow Gradient Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.85rem 1.75rem;
  border-radius: 9999px;
  font-weight: 700;
  font-size: 1rem;
  cursor: pointer;
  transition: all var(--transition-normal);
  border: 1px solid transparent;
  white-space: nowrap;
}

.btn-primary {
  background: linear-gradient(135deg, #3b82f6 0%, #8b5cf6 40%, #ec4899 80%, #f97316 100%);
  background-size: 200% 200%;
  color: #ffffff;
  box-shadow: 0 6px 24px rgba(139, 92, 246, 0.35);
  animation: rainbowGlow 6s ease infinite alternate;
}

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

.btn-primary:hover {
  box-shadow: 0 8px 32px rgba(236, 72, 153, 0.5);
  transform: translateY(-2px);
}

.btn-secondary {
  background: #ffffff;
  color: var(--text-main);
  border: 1px solid var(--bg-card-border);
  box-shadow: 0 4px 12px rgba(15, 23, 42, 0.05);
}

.btn-secondary:hover {
  background: #f8fafc;
  border-color: #cbd5e1;
  transform: translateY(-2px);
  box-shadow: 0 6px 18px rgba(59, 130, 246, 0.15);
}

/* Header & Nav */
.header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255, 255, 255, 0.85);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid rgba(226, 232, 240, 0.8);
}

.nav-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
}

.logo {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  font-weight: 800;
  font-size: 1.4rem;
  color: var(--text-main);
}

.logo-icon {
  width: 36px;
  height: 36px;
  border-radius: 11px;
  background: linear-gradient(135deg, #ef4444, #f59e0b, #10b981, #3b82f6, #8b5cf6);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-size: 1.15rem;
  font-weight: 900;
  box-shadow: 0 4px 15px rgba(236, 72, 153, 0.35);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 1.8rem;
  list-style: none;
}

.nav-links a {
  font-size: 0.95rem;
  color: var(--text-secondary);
  font-weight: 600;
}

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

.nav-cta {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.mobile-toggle {
  display: none;
  background: none;
  border: none;
  color: var(--text-main);
  font-size: 1.5rem;
  cursor: pointer;
  padding: 0.5rem;
}

/* Mobile Nav Drawer */
.mobile-nav {
  display: none;
  position: fixed;
  top: 72px;
  left: 0;
  width: 100%;
  background: rgba(255, 255, 255, 0.98);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--bg-card-border);
  padding: 1.5rem;
  z-index: 99;
  flex-direction: column;
  gap: 1.2rem;
  transform: translateY(-100%);
  opacity: 0;
  transition: all 0.3s ease;
  pointer-events: none;
}

.mobile-nav.active {
  display: flex;
  transform: translateY(0);
  opacity: 1;
  pointer-events: auto;
}

.mobile-nav a {
  font-size: 1.1rem;
  color: var(--text-main);
  padding: 0.5rem 0;
  border-bottom: 1px solid #f1f5f9;
}

/* Hero Section */
.hero {
  padding: 5rem 0 4rem;
  position: relative;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 3.5rem;
  align-items: center;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.45rem 1.1rem;
  border-radius: 9999px;
  background: linear-gradient(135deg, rgba(239, 68, 68, 0.08), rgba(59, 130, 246, 0.08), rgba(236, 72, 153, 0.08));
  border: 1px solid rgba(139, 92, 246, 0.25);
  color: #6d28d9;
  font-size: 0.875rem;
  font-weight: 700;
  margin-bottom: 1.25rem;
}

.hero-badge-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background-color: var(--rainbow-green);
  box-shadow: 0 0 10px var(--rainbow-green);
}

.hero-content h1 {
  margin-bottom: 1.25rem;
}

.hero-content p {
  font-size: 1.15rem;
  margin-bottom: 2rem;
  max-width: 540px;
  line-height: 1.7;
}

.hero-actions {
  display: flex;
  align-items: center;
  gap: 1rem;
  flex-wrap: wrap;
  margin-bottom: 2rem;
}

.hero-stats {
  display: flex;
  align-items: center;
  gap: 2.5rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--bg-card-border);
}

.stat-item h4 {
  font-size: 1.3rem;
  color: var(--text-main);
  background: linear-gradient(135deg, #0f172a, #3b82f6);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.stat-item p {
  font-size: 0.85rem;
  color: var(--text-muted);
}

/* Hero Network Dashboard (White + Rainbow Accent Visual) */
.hero-dashboard {
  background: #ffffff;
  border: 1px solid rgba(226, 232, 240, 0.9);
  border-radius: var(--radius-xl);
  padding: 1.75rem;
  box-shadow: 0 20px 50px rgba(139, 92, 246, 0.12), 0 4px 15px rgba(0, 0, 0, 0.03);
  backdrop-filter: blur(16px);
  position: relative;
  overflow: hidden;
}

.hero-dashboard::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(90deg, #ef4444, #f97316, #eab308, #10b981, #3b82f6, #8b5cf6, #ec4899);
}

.dashboard-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-bottom: 1rem;
  border-bottom: 1px solid #f1f5f9;
  margin-bottom: 1.25rem;
}

.dash-dots {
  display: flex;
  gap: 6px;
}

.dash-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
}

.dash-dot.red { background: #ef4444; }
.dash-dot.yellow { background: #f59e0b; }
.dash-dot.green { background: #10b981; }

.dash-title {
  font-size: 0.85rem;
  color: var(--text-muted);
  font-family: monospace;
  font-weight: 700;
}

.dash-status-pill {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.25rem 0.65rem;
  border-radius: 9999px;
  background: rgba(16, 185, 129, 0.12);
  color: #059669;
  font-size: 0.75rem;
  font-weight: 700;
}

/* Nodes Grid inside Dashboard */
.dash-node-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 0.85rem;
  margin-bottom: 1.25rem;
}

.dash-node-card {
  background: #f8fafc;
  border: 1px solid #e2e8f0;
  border-radius: var(--radius-sm);
  padding: 0.85rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  transition: border-color var(--transition-fast);
}

.dash-node-card:hover {
  border-color: var(--rainbow-purple);
}

.node-info {
  display: flex;
  align-items: center;
  gap: 0.6rem;
}

.node-flag {
  font-size: 1.2rem;
}

.node-name {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--text-main);
}

.node-ping {
  font-size: 0.75rem;
  font-weight: 700;
  color: #059669;
  font-family: monospace;
}

/* Dynamic Waveform Graph SVG Area with Rainbow Line Gradient */
.dash-graph {
  height: 110px;
  background: linear-gradient(180deg, #f8fafc 0%, #f1f5f9 100%);
  border-radius: var(--radius-sm);
  border: 1px solid #e2e8f0;
  position: relative;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
}

.dash-graph svg {
  width: 100%;
  height: 100%;
}

.dash-features-status {
  display: flex;
  gap: 0.75rem;
  margin-top: 1rem;
}

.dash-feat-tag {
  flex: 1;
  background: #f8fafc;
  border: 1px solid #e2e8f0;
  padding: 0.5rem;
  border-radius: var(--radius-sm);
  text-align: center;
  font-size: 0.75rem;
  color: var(--text-secondary);
}

.dash-feat-tag span {
  display: block;
  font-size: 0.85rem;
  font-weight: 800;
  background: linear-gradient(135deg, #3b82f6, #ec4899);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  margin-top: 2px;
}

/* Section Header */
.section-header {
  text-align: center;
  max-width: 680px;
  margin: 0 auto 3.5rem;
}

.section-tag {
  display: inline-block;
  font-size: 0.85rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  background: linear-gradient(135deg, #3b82f6, #8b5cf6, #ec4899);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  margin-bottom: 0.75rem;
}

.section-header h2 {
  margin-bottom: 1rem;
}

.section-header p {
  font-size: 1.05rem;
}

/* Core Advantages Section & Bento Grid */
.advantages {
  padding: 5rem 0;
}

.bento-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
}

.bento-card {
  background: var(--bg-card);
  border: 1px solid var(--bg-card-border);
  border-radius: var(--radius-lg);
  padding: 2.25rem;
  position: relative;
  overflow: hidden;
  transition: all var(--transition-normal);
  backdrop-filter: blur(10px);
  box-shadow: 0 4px 20px rgba(15, 23, 42, 0.03);
}

.bento-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 3px;
  background: linear-gradient(90deg, #3b82f6, #8b5cf6, #ec4899);
  opacity: 0;
  transition: opacity var(--transition-fast);
}

.bento-card:hover {
  background: var(--bg-card-hover);
  transform: translateY(-4px);
  box-shadow: 0 16px 40px rgba(139, 92, 246, 0.15);
  border-color: rgba(139, 92, 246, 0.3);
}

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

.bento-icon-wrapper {
  width: 56px;
  height: 56px;
  border-radius: var(--radius-md);
  background: linear-gradient(135deg, rgba(59, 130, 246, 0.1), rgba(236, 72, 153, 0.1));
  border: 1px solid rgba(139, 92, 246, 0.25);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1.5rem;
  color: var(--rainbow-purple);
}

.bento-card h3 {
  margin-bottom: 0.75rem;
}

.bento-card p {
  font-size: 0.95rem;
  line-height: 1.65;
}

/* Global Nodes Section */
.nodes-section {
  padding: 5rem 0;
  background: linear-gradient(180deg, rgba(248, 250, 252, 0.6) 0%, rgba(241, 245, 249, 0.8) 100%);
  border-top: 1px solid var(--bg-card-border);
  border-bottom: 1px solid var(--bg-card-border);
}

.nodes-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.25rem;
}

.node-region-card {
  background: var(--bg-card);
  border: 1px solid var(--bg-card-border);
  border-radius: var(--radius-md);
  padding: 1.25rem;
  display: flex;
  align-items: center;
  gap: 1rem;
  transition: all var(--transition-fast);
  box-shadow: 0 2px 8px rgba(15, 23, 42, 0.03);
}

.node-region-card:hover {
  border-color: var(--rainbow-blue);
  background: #ffffff;
  box-shadow: 0 8px 24px rgba(59, 130, 246, 0.15);
}

.region-flag {
  font-size: 2rem;
  line-height: 1;
}

.region-info h4 {
  font-size: 1rem;
}

.region-info p {
  font-size: 0.8rem;
  color: var(--text-muted);
}

/* AI & Streaming Section */
.ai-streaming-section {
  padding: 5rem 0;
}

.scenario-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 2rem;
}

.scenario-card {
  background: var(--bg-card);
  border: 1px solid var(--bg-card-border);
  border-radius: var(--radius-lg);
  padding: 2.25rem;
  backdrop-filter: blur(10px);
  box-shadow: 0 4px 20px rgba(15, 23, 42, 0.03);
}

.scenario-header {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-bottom: 1.5rem;
}

.scenario-badge-icon {
  width: 48px;
  height: 48px;
  border-radius: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.4rem;
}

.scenario-badge-icon.ai {
  background: linear-gradient(135deg, rgba(139, 92, 246, 0.15), rgba(236, 72, 153, 0.15));
  color: #8b5cf6;
  border: 1px solid rgba(139, 92, 246, 0.3);
}

.scenario-badge-icon.stream {
  background: linear-gradient(135deg, rgba(239, 68, 68, 0.15), rgba(249, 115, 22, 0.15));
  color: #ef4444;
  border: 1px solid rgba(239, 68, 68, 0.3);
}

.chips-container {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
  margin-top: 1.5rem;
}

.chip {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.4rem 0.85rem;
  border-radius: 9999px;
  background: #ffffff;
  border: 1px solid #e2e8f0;
  font-size: 0.85rem;
  color: var(--text-main);
  font-weight: 600;
  box-shadow: 0 2px 6px rgba(15, 23, 42, 0.03);
  transition: all var(--transition-fast);
}

.chip:hover {
  border-color: var(--rainbow-purple);
  color: var(--rainbow-purple);
}

/* SaaS Pricing Section */
.pricing-section {
  padding: 5rem 0;
  background: linear-gradient(180deg, rgba(248, 250, 252, 0.6) 0%, rgba(241, 245, 249, 0.8) 100%);
  border-top: 1px solid var(--bg-card-border);
  border-bottom: 1px solid var(--bg-card-border);
}

.pricing-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
  align-items: stretch;
}

.pricing-card {
  background: var(--bg-card);
  border: 1px solid var(--bg-card-border);
  border-radius: var(--radius-xl);
  padding: 2.5rem 2rem;
  display: flex;
  flex-direction: column;
  position: relative;
  backdrop-filter: blur(10px);
  transition: all var(--transition-normal);
  box-shadow: 0 4px 20px rgba(15, 23, 42, 0.03);
}

.pricing-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 16px 40px rgba(15, 23, 42, 0.08);
}

.pricing-card.recommended {
  border-color: rgba(139, 92, 246, 0.5);
  background: #ffffff;
  box-shadow: 0 16px 45px rgba(139, 92, 246, 0.2);
}

.recommended-tag {
  position: absolute;
  top: -14px;
  left: 50%;
  transform: translateX(-50%);
  background: linear-gradient(90deg, #ef4444, #f97316, #eab308, #10b981, #3b82f6, #8b5cf6, #ec4899);
  color: #fff;
  font-size: 0.75rem;
  font-weight: 800;
  padding: 0.35rem 1.1rem;
  border-radius: 9999px;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  box-shadow: 0 4px 15px rgba(236, 72, 153, 0.4);
}

.plan-name {
  font-size: 1.3rem;
  margin-bottom: 0.5rem;
}

.plan-desc {
  font-size: 0.875rem;
  color: var(--text-muted);
  margin-bottom: 1.5rem;
}

.plan-price {
  font-size: 2.2rem;
  font-weight: 800;
  color: var(--text-main);
  margin-bottom: 1.5rem;
  display: flex;
  align-items: baseline;
  gap: 0.3rem;
}

.plan-price span {
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--text-muted);
}

.plan-features {
  list-style: none;
  margin-bottom: 2rem;
  flex-grow: 1;
}

.plan-features li {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  font-size: 0.925rem;
  color: var(--text-secondary);
  margin-bottom: 0.85rem;
}

.plan-features li svg {
  color: var(--rainbow-green);
  flex-shrink: 0;
}

/* SEO Articles Section */
.articles-section {
  padding: 5rem 0;
}

.blog-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.75rem;
}

.blog-card {
  background: var(--bg-card);
  border: 1px solid var(--bg-card-border);
  border-radius: var(--radius-lg);
  padding: 1.75rem;
  display: flex;
  flex-direction: column;
  transition: all var(--transition-normal);
  backdrop-filter: blur(10px);
  box-shadow: 0 4px 20px rgba(15, 23, 42, 0.03);
}

.blog-card:hover {
  border-color: rgba(139, 92, 246, 0.4);
  transform: translateY(-4px);
  box-shadow: 0 16px 36px rgba(139, 92, 246, 0.15);
}

.blog-category {
  font-size: 0.75rem;
  font-weight: 800;
  background: linear-gradient(135deg, #3b82f6, #ec4899);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 0.75rem;
}

.blog-card h3 {
  font-size: 1.15rem;
  margin-bottom: 0.75rem;
  line-height: 1.4;
}

.blog-card h3 a:hover {
  color: var(--primary);
}

.blog-excerpt {
  font-size: 0.9rem;
  color: var(--text-secondary);
  margin-bottom: 1.5rem;
  flex-grow: 1;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.blog-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 0.8rem;
  color: var(--text-muted);
  padding-top: 1rem;
  border-top: 1px solid #f1f5f9;
}

.read-more-link {
  color: var(--primary);
  font-weight: 700;
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
}

/* Testimonials Section */
.testimonials-section {
  padding: 5rem 0;
  background: linear-gradient(180deg, rgba(248, 250, 252, 0.6) 0%, rgba(241, 245, 249, 0.8) 100%);
  border-top: 1px solid var(--bg-card-border);
  border-bottom: 1px solid var(--bg-card-border);
}

.testimonials-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
}

.testimonial-card {
  background: var(--bg-card);
  border: 1px solid var(--bg-card-border);
  border-radius: var(--radius-lg);
  padding: 1.75rem;
  backdrop-filter: blur(10px);
  box-shadow: 0 4px 15px rgba(15, 23, 42, 0.03);
}

.user-avatar-row {
  display: flex;
  align-items: center;
  gap: 0.8rem;
  margin-bottom: 1rem;
}

.user-avatar {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: linear-gradient(135deg, #ef4444, #3b82f6, #8b5cf6);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-weight: 800;
  font-size: 0.95rem;
  box-shadow: 0 3px 10px rgba(59, 130, 246, 0.3);
}

.user-info h4 {
  font-size: 0.95rem;
}

.user-info p {
  font-size: 0.775rem;
  color: var(--text-muted);
}

.testimonial-content {
  font-size: 0.925rem;
  color: var(--text-secondary);
  font-style: italic;
  line-height: 1.6;
}

/* FAQ Accordion Section */
.faq-section {
  padding: 5rem 0;
}

.faq-list {
  max-width: 820px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.faq-item {
  background: var(--bg-card);
  border: 1px solid var(--bg-card-border);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: border-color var(--transition-fast);
  box-shadow: 0 2px 8px rgba(15, 23, 42, 0.02);
}

.faq-item.active {
  border-color: rgba(139, 92, 246, 0.4);
}

.faq-question {
  width: 100%;
  padding: 1.25rem 1.5rem;
  background: none;
  border: none;
  color: var(--text-main);
  font-size: 1.05rem;
  font-weight: 600;
  text-align: left;
  display: flex;
  align-items: center;
  justify-content: space-between;
  cursor: pointer;
}

.faq-icon {
  width: 20px;
  height: 20px;
  transition: transform var(--transition-normal);
  color: var(--primary);
  flex-shrink: 0;
}

.faq-item.active .faq-icon {
  transform: rotate(180deg);
  color: var(--rainbow-purple);
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.35s cubic-bezier(0.16, 1, 0.3, 1);
  padding: 0 1.5rem;
}

.faq-item.active .faq-answer {
  max-height: 400px;
  padding-bottom: 1.25rem;
}

.faq-answer p {
  font-size: 0.95rem;
  line-height: 1.7;
}

/* SEO Subpage Article Layout Styles */
.article-page-header {
  padding: 4rem 0 2rem;
  background: linear-gradient(180deg, #ffffff 0%, #f8fafc 100%);
  border-bottom: 1px solid var(--bg-card-border);
}

.breadcrumb {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.875rem;
  color: var(--text-muted);
  margin-bottom: 1.25rem;
}

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

.article-container {
  max-width: 860px;
  margin: 3rem auto;
  padding: 0 1.25rem;
}

.article-content {
  line-height: 1.85;
  font-size: 1.05rem;
  color: #334155;
}

.article-content h2 {
  margin: 2.5rem 0 1rem;
  font-size: 1.75rem;
  padding-bottom: 0.5rem;
  border-bottom: 1px solid var(--bg-card-border);
}

.article-content h3 {
  margin: 1.75rem 0 0.75rem;
  font-size: 1.3rem;
  color: var(--text-main);
}

.article-content p {
  margin-bottom: 1.25rem;
  font-size: 1.025rem;
  color: #334155;
}

.article-content ul, .article-content ol {
  margin: 1rem 0 1.5rem 1.5rem;
}

.article-content li {
  margin-bottom: 0.5rem;
  color: #334155;
}

.article-content table {
  width: 100%;
  border-collapse: collapse;
  margin: 1.75rem 0;
  background: #ffffff;
  border-radius: var(--radius-sm);
  overflow: hidden;
  border: 1px solid var(--bg-card-border);
  box-shadow: 0 2px 8px rgba(15, 23, 42, 0.03);
}

.article-content th, .article-content td {
  padding: 0.85rem 1rem;
  text-align: left;
  border-bottom: 1px solid #f1f5f9;
}

.article-content th {
  background: #f8fafc;
  color: var(--text-main);
  font-weight: 700;
}

.article-cta-box {
  background: linear-gradient(135deg, rgba(239, 68, 68, 0.05), rgba(59, 130, 246, 0.05), rgba(236, 72, 153, 0.05));
  border: 1px solid rgba(139, 92, 246, 0.3);
  border-radius: var(--radius-lg);
  padding: 2rem;
  margin: 2.5rem 0;
  text-align: center;
  box-shadow: 0 4px 25px rgba(139, 92, 246, 0.1);
}

.article-cta-box h3 {
  margin-bottom: 0.75rem;
}

.related-articles {
  margin-top: 4rem;
  padding-top: 2.5rem;
  border-top: 1px solid var(--bg-card-border);
}

/* Footer Section */
.footer {
  background: #f8fafc;
  border-top: 1px solid var(--bg-card-border);
  padding: 4rem 0 2rem;
  margin-top: 4rem;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr repeat(3, 1fr);
  gap: 3rem;
  margin-bottom: 3rem;
}

.footer-brand p {
  margin-top: 1rem;
  font-size: 0.9rem;
  max-width: 320px;
}

.footer-col h4 {
  font-size: 1rem;
  margin-bottom: 1.25rem;
  color: var(--text-main);
}

.footer-col ul {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.footer-col a {
  font-size: 0.9rem;
  color: var(--text-secondary);
}

.footer-col a:hover {
  color: var(--primary);
}

.footer-bottom {
  padding-top: 2rem;
  border-top: 1px solid #e2e8f0;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1rem;
  text-align: center;
  font-size: 0.85rem;
  color: var(--text-muted);
}

.editorial-recommendations {
  display: flex;
  align-items: center;
  gap: 1.5rem;
  flex-wrap: wrap;
  justify-content: center;
  margin-top: 0.5rem;
}

.editorial-recommendations a {
  color: var(--primary);
  text-decoration: underline;
  text-underline-offset: 3px;
  transition: color var(--transition-fast);
}

.editorial-recommendations a:hover {
  color: var(--rainbow-purple);
}

/* Responsive Media Queries */

/* Tablet (max-width: 1024px) */
@media (max-width: 1024px) {
  .hero-grid {
    grid-template-columns: 1fr;
    gap: 2.5rem;
  }
  
  .bento-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .nodes-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .pricing-grid {
    grid-template-columns: 1fr;
    max-width: 500px;
    margin: 0 auto;
  }
  
  .blog-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .testimonials-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .footer-grid {
    grid-template-columns: 1fr 1fr;
  }
}

/* Mobile (max-width: 768px) */
@media (max-width: 768px) {
  .nav-links, .nav-cta {
    display: none;
  }
  
  .mobile-toggle {
    display: block;
  }
  
  .bento-grid {
    grid-template-columns: 1fr;
  }
  
  .scenario-grid {
    grid-template-columns: 1fr;
  }
  
  .blog-grid {
    grid-template-columns: 1fr;
  }
  
  .testimonials-grid {
    grid-template-columns: 1fr;
  }
  
  .nodes-grid {
    grid-template-columns: 1fr;
  }
  
  .hero-actions {
    flex-direction: column;
    align-items: stretch;
  }
  
  .btn {
    width: 100%;
  }
  
  .footer-grid {
    grid-template-columns: 1fr;
    gap: 2rem;
  }
  
  .dash-node-grid {
    grid-template-columns: 1fr;
  }
}

/* Reduced Motion Support */
@media (prefers-reduced-motion: reduce) {
  *, ::before, ::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}