/* ==========================================================================
   万达云机场 (Wanda Cloud Airport) - Modern Light Theme Stylesheet
   Design Features: Asymmetric Wide-Screen Multi-Column Layout, Glassmorphism,
   Soft Ambient Gradients, Responsive Micro-Interactions.
   ========================================================================== */

:root {
  /* Color Palette - Premium Light Theme */
  --bg-primary: #f8fafc;
  --bg-secondary: #ffffff;
  --bg-tertiary: #f1f5f9;
  --bg-card: rgba(255, 255, 255, 0.85);
  --bg-card-hover: #ffffff;
  
  --text-main: #0f172a;
  --text-muted: #475569;
  --text-subtle: #94a3b8;
  
  --accent-blue: #2563eb;
  --accent-blue-hover: #1d4ed8;
  --accent-blue-light: #eff6ff;
  --accent-indigo: #4f46e5;
  --accent-purple: #7c3aed;
  --accent-teal: #0d9488;
  --accent-emerald: #10b981;
  --accent-amber: #f59e0b;
  --accent-rose: #f43f5e;
  
  --border-light: rgba(226, 232, 240, 0.8);
  --border-focus: rgba(37, 99, 235, 0.4);
  
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.06), 0 2px 4px -1px rgba(0, 0, 0, 0.04);
  --shadow-lg: 0 10px 25px -5px rgba(15, 23, 42, 0.08), 0 8px 10px -6px rgba(15, 23, 42, 0.04);
  --shadow-glow: 0 0 20px rgba(37, 99, 235, 0.18);
  
  --glass-bg: rgba(255, 255, 255, 0.75);
  --glass-border: rgba(255, 255, 255, 0.6);
  --glass-backdrop: blur(12px);
  
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 20px;
  --radius-full: 9999px;
  
  --font-family: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  font-family: var(--font-family);
  background-color: var(--bg-primary);
  color: var(--text-main);
  line-height: 1.6;
  overflow-x: hidden;
  position: relative;
  -webkit-font-smoothing: antialiased;
}

/* Background Canvas */
#bg-canvas {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  z-index: -1;
  pointer-events: none;
}

/* Container */
.container {
  max-width: 1360px;
  margin: 0 auto;
  padding: 0 24px;
}

/* Typography Helpers */
h1, h2, h3, h4, h5, h6 {
  color: var(--text-main);
  font-weight: 700;
  line-height: 1.25;
}

.gradient-text {
  background: linear-gradient(135deg, var(--accent-blue) 0%, var(--accent-indigo) 50%, var(--accent-purple) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.gradient-text-teal {
  background: linear-gradient(135deg, var(--accent-teal) 0%, var(--accent-emerald) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 28px;
  font-size: 1rem;
  font-weight: 600;
  border-radius: var(--radius-full);
  text-decoration: none;
  cursor: pointer;
  transition: var(--transition);
  border: 1px solid transparent;
  outline: none;
  white-space: nowrap;
}

.btn-primary {
  background: linear-gradient(135deg, var(--accent-blue) 0%, var(--accent-indigo) 100%);
  color: #ffffff;
  box-shadow: 0 4px 14px rgba(37, 99, 235, 0.35);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(37, 99, 235, 0.45);
}

.btn-secondary {
  background: var(--bg-secondary);
  color: var(--text-main);
  border-color: var(--border-light);
  box-shadow: var(--shadow-sm);
}

.btn-secondary:hover {
  background: var(--bg-tertiary);
  border-color: var(--accent-blue);
  color: var(--accent-blue);
  transform: translateY(-2px);
}

.btn-sm {
  padding: 8px 18px;
  font-size: 0.875rem;
}

.btn-lg {
  padding: 16px 36px;
  font-size: 1.125rem;
}

.btn-glow {
  position: relative;
  overflow: hidden;
}

.btn-glow::after {
  content: '';
  position: absolute;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background: linear-gradient(60deg, transparent, rgba(255, 255, 255, 0.3), transparent);
  transform: rotate(30deg);
  animation: shine 4s infinite;
}

@keyframes shine {
  0% { transform: translateX(-100%) rotate(30deg); }
  20%, 100% { transform: translateX(100%) rotate(30deg); }
}

/* Header & Top Bar */
.top-notice-bar {
  background: linear-gradient(90deg, #1e293b 0%, #0f172a 100%);
  color: #f8fafc;
  padding: 10px 0;
  font-size: 0.875rem;
  text-align: center;
}

.top-notice-bar .badge-highlight {
  background: var(--accent-rose);
  color: #fff;
  padding: 2px 8px;
  border-radius: 4px;
  font-size: 0.75rem;
  font-weight: 700;
  margin-right: 8px;
}

.top-notice-bar a {
  color: #60a5fa;
  text-decoration: underline;
  margin-left: 10px;
  font-weight: 600;
}

.navbar {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255, 255, 255, 0.85);
  backdrop-filter: var(--glass-backdrop);
  -webkit-backdrop-filter: var(--glass-backdrop);
  border-bottom: 1px solid var(--border-light);
  padding: 16px 0;
  transition: var(--transition);
}

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

.logo {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
  font-size: 1.35rem;
  font-weight: 800;
  color: var(--text-main);
}

.logo-icon {
  width: 40px;
  height: 40px;
  background: linear-gradient(135deg, var(--accent-blue), var(--accent-indigo));
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-size: 1.25rem;
  box-shadow: 0 4px 10px rgba(37, 99, 235, 0.3);
}

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

.nav-links a {
  text-decoration: none;
  color: var(--text-muted);
  font-weight: 500;
  font-size: 0.95rem;
  transition: var(--transition);
  position: relative;
}

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

.nav-links a::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--accent-blue);
  transition: var(--transition);
  border-radius: 2px;
}

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

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

/* Multi-Column Main Layout */
.main-wrapper {
  padding: 40px 0 80px;
}

.multi-column-grid {
  display: grid;
  grid-template-columns: 1fr 340px;
  gap: 36px;
  align-items: start;
}

/* Sidebar Styling */
.sidebar {
  display: flex;
  flex-direction: column;
  gap: 28px;
  position: sticky;
  top: 100px;
}

.sidebar-card {
  background: var(--bg-card);
  backdrop-filter: var(--glass-backdrop);
  -webkit-backdrop-filter: var(--glass-backdrop);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-lg);
  padding: 24px;
  box-shadow: var(--shadow-md);
}

.sidebar-title {
  font-size: 1.1rem;
  font-weight: 700;
  margin-bottom: 18px;
  display: flex;
  align-items: center;
  gap: 10px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--border-light);
}

.sidebar-title i {
  color: var(--accent-blue);
}

.sidebar-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.sidebar-list-item {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.sidebar-list-item a {
  text-decoration: none;
  color: var(--text-main);
  font-size: 0.9rem;
  font-weight: 600;
  line-height: 1.4;
  transition: var(--transition);
}

.sidebar-list-item a:hover {
  color: var(--accent-blue);
}

.sidebar-list-item .item-meta {
  font-size: 0.75rem;
  color: var(--text-subtle);
  display: flex;
  align-items: center;
  gap: 8px;
}

.fast-diagnostic-box {
  background: linear-gradient(135deg, #eff6ff 0%, #e0e7ff 100%);
  border: 1px solid #bfdbfe;
  border-radius: var(--radius-md);
  padding: 18px;
  text-align: center;
}

.fast-diagnostic-box h4 {
  font-size: 0.95rem;
  color: #1e3a8a;
  margin-bottom: 8px;
}

.fast-diagnostic-box p {
  font-size: 0.8rem;
  color: #3b82f6;
  margin-bottom: 14px;
}

/* Hero Section */
.hero-section {
  background: linear-gradient(135deg, rgba(239, 246, 255, 0.6) 0%, rgba(243, 232, 255, 0.6) 100%);
  border: 1px solid rgba(255, 255, 255, 0.8);
  border-radius: var(--radius-lg);
  padding: 56px 40px;
  box-shadow: var(--shadow-lg);
  margin-bottom: 48px;
  position: relative;
  overflow: hidden;
}

.hero-pill {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 16px;
  background: rgba(37, 99, 235, 0.1);
  color: var(--accent-blue);
  border-radius: var(--radius-full);
  font-size: 0.875rem;
  font-weight: 600;
  margin-bottom: 20px;
}

.hero-title {
  font-size: 2.75rem;
  font-weight: 800;
  letter-spacing: -0.02em;
  margin-bottom: 20px;
  line-height: 1.18;
}

.hero-subtitle {
  font-size: 1.15rem;
  color: var(--text-muted);
  max-width: 720px;
  margin-bottom: 32px;
}

.hero-cta-group {
  display: flex;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
  margin-bottom: 36px;
}

.hero-features-bar {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: 16px;
  padding-top: 28px;
  border-top: 1px solid rgba(203, 213, 225, 0.6);
}

.hero-feature-item {
  display: flex;
  align-items: center;
  gap: 12px;
}

.hero-feature-item .icon {
  width: 36px;
  height: 36px;
  background: white;
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--accent-blue);
  box-shadow: var(--shadow-sm);
}

.hero-feature-item .text h5 {
  font-size: 0.9rem;
  font-weight: 700;
}

.hero-feature-item .text p {
  font-size: 0.75rem;
  color: var(--text-muted);
}

/* Section Common */
.section {
  margin-bottom: 56px;
}

.section-header {
  margin-bottom: 32px;
}

.section-tag {
  color: var(--accent-blue);
  font-weight: 700;
  font-size: 0.875rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 8px;
  display: block;
}

.section-title {
  font-size: 2rem;
  font-weight: 800;
  margin-bottom: 12px;
}

.section-desc {
  font-size: 1rem;
  color: var(--text-muted);
  max-width: 650px;
}

/* Node Latency Monitor Panel */
.node-card {
  background: var(--bg-card);
  backdrop-filter: var(--glass-backdrop);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-lg);
  padding: 32px;
  box-shadow: var(--shadow-md);
}

.node-header-flex {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 24px;
  flex-wrap: wrap;
  gap: 16px;
}

.node-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 16px;
}

.node-item {
  background: var(--bg-secondary);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-md);
  padding: 16px 20px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  transition: var(--transition);
}

.node-item:hover {
  border-color: var(--accent-blue);
  box-shadow: var(--shadow-sm);
  transform: translateY(-2px);
}

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

.node-flag {
  font-size: 1.5rem;
}

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

.node-type {
  font-size: 0.75rem;
  color: var(--text-subtle);
}

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

.node-ping {
  font-family: monospace;
  font-weight: 700;
  font-size: 0.95rem;
  color: var(--accent-emerald);
}

.node-ping.medium {
  color: var(--accent-amber);
}

.node-badge {
  display: inline-block;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--accent-emerald);
  margin-right: 6px;
  animation: pulse 2s infinite;
}

@keyframes pulse {
  0% { transform: scale(0.95); box-shadow: 0 0 0 0 rgba(16, 185, 129, 0.7); }
  70% { transform: scale(1); box-shadow: 0 0 0 8px rgba(16, 185, 129, 0); }
  100% { transform: scale(0.95); box-shadow: 0 0 0 0 rgba(16, 185, 129, 0); }
}

/* Pricing Section */
.pricing-toggle-wrapper {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  margin-bottom: 40px;
}

.pricing-toggle {
  background: var(--bg-tertiary);
  border-radius: var(--radius-full);
  padding: 4px;
  display: flex;
  align-items: center;
  position: relative;
  cursor: pointer;
}

.pricing-toggle-btn {
  padding: 8px 24px;
  font-size: 0.9rem;
  font-weight: 600;
  border-radius: var(--radius-full);
  border: none;
  background: transparent;
  color: var(--text-muted);
  cursor: pointer;
  transition: var(--transition);
}

.pricing-toggle-btn.active {
  background: var(--bg-secondary);
  color: var(--accent-blue);
  box-shadow: var(--shadow-sm);
}

.discount-badge {
  background: var(--accent-rose);
  color: white;
  font-size: 0.75rem;
  font-weight: 700;
  padding: 4px 10px;
  border-radius: var(--radius-full);
}

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

.pricing-card {
  background: var(--bg-card);
  backdrop-filter: var(--glass-backdrop);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-lg);
  padding: 32px 24px;
  display: flex;
  flex-direction: column;
  transition: var(--transition);
  position: relative;
}

.pricing-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
  border-color: var(--accent-blue);
}

.pricing-card.popular {
  border: 2px solid var(--accent-blue);
  box-shadow: var(--shadow-glow);
}

.popular-ribbon {
  position: absolute;
  top: -12px;
  left: 50%;
  transform: translateX(-50%);
  background: linear-gradient(135deg, var(--accent-blue), var(--accent-indigo));
  color: white;
  font-size: 0.75rem;
  font-weight: 700;
  padding: 4px 16px;
  border-radius: var(--radius-full);
  text-transform: uppercase;
}

.pricing-title {
  font-size: 1.25rem;
  font-weight: 700;
  margin-bottom: 8px;
}

.pricing-price {
  font-size: 2.25rem;
  font-weight: 800;
  color: var(--text-main);
  margin-bottom: 16px;
}

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

.pricing-features {
  list-style: none;
  margin-bottom: 28px;
  flex-grow: 1;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

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

.pricing-features li i {
  color: var(--accent-emerald);
  font-size: 1rem;
}

/* Core Advantages Grid */
.advantages-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 24px;
}

.advantage-card {
  background: var(--bg-card);
  backdrop-filter: var(--glass-backdrop);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-lg);
  padding: 28px;
  transition: var(--transition);
}

.advantage-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
  border-color: rgba(37, 99, 235, 0.3);
}

.advantage-icon {
  width: 52px;
  height: 52px;
  border-radius: var(--radius-md);
  background: var(--accent-blue-light);
  color: var(--accent-blue);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  margin-bottom: 20px;
}

.advantage-card h3 {
  font-size: 1.15rem;
  margin-bottom: 10px;
}

.advantage-card p {
  font-size: 0.9rem;
  color: var(--text-muted);
  line-height: 1.6;
}

/* Knowledge Base Grid */
.kb-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 24px;
}

.kb-card {
  background: var(--bg-card);
  backdrop-filter: var(--glass-backdrop);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-lg);
  padding: 24px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  transition: var(--transition);
  text-decoration: none;
  color: inherit;
}

.kb-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
  border-color: var(--accent-blue);
}

.kb-tag {
  display: inline-block;
  padding: 4px 10px;
  background: var(--accent-blue-light);
  color: var(--accent-blue);
  border-radius: var(--radius-sm);
  font-size: 0.75rem;
  font-weight: 700;
  margin-bottom: 12px;
  align-self: flex-start;
}

.kb-title {
  font-size: 1.05rem;
  font-weight: 700;
  margin-bottom: 10px;
  line-height: 1.4;
}

.kb-excerpt {
  font-size: 0.85rem;
  color: var(--text-muted);
  margin-bottom: 16px;
  line-height: 1.5;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.kb-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 0.8rem;
  color: var(--text-subtle);
  padding-top: 12px;
  border-top: 1px solid var(--border-light);
}

.kb-readmore {
  color: var(--accent-blue);
  font-weight: 600;
  display: flex;
  align-items: center;
  gap: 4px;
}

/* FAQ Accordion */
.faq-list {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

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

.faq-question {
  width: 100%;
  padding: 20px 24px;
  background: transparent;
  border: none;
  text-align: left;
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--text-main);
  display: flex;
  align-items: center;
  justify-content: space-between;
  cursor: pointer;
}

.faq-question i {
  color: var(--accent-blue);
  transition: transform 0.3s ease;
}

.faq-item.active .faq-question i {
  transform: rotate(180deg);
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s ease, padding 0.3s ease;
  padding: 0 24px;
  color: var(--text-muted);
  font-size: 0.95rem;
  line-height: 1.6;
}

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

/* User Reviews Section */
.reviews-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 24px;
}

.review-card {
  background: var(--bg-card);
  backdrop-filter: var(--glass-backdrop);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-lg);
  padding: 24px;
  box-shadow: var(--shadow-sm);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.review-stars {
  color: #f59e0b;
  font-size: 0.9rem;
  margin-bottom: 12px;
}

.review-content {
  font-size: 0.925rem;
  color: var(--text-muted);
  margin-bottom: 20px;
  font-style: italic;
  line-height: 1.6;
}

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

.user-avatar {
  width: 42px;
  height: 42px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--accent-blue), var(--accent-indigo));
  color: white;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 1rem;
}

.user-details h5 {
  font-size: 0.9rem;
  font-weight: 700;
}

.user-details p {
  font-size: 0.75rem;
  color: var(--text-subtle);
}

/* Article Detail Page Layout */
.article-container {
  max-width: 1080px;
  margin: 40px auto;
  padding: 0 24px;
  display: grid;
  grid-template-columns: 1fr 300px;
  gap: 40px;
}

.article-content-wrapper {
  background: var(--bg-secondary);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-lg);
  padding: 40px;
  box-shadow: var(--shadow-md);
}

.breadcrumb {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.85rem;
  color: var(--text-subtle);
  margin-bottom: 20px;
}

.breadcrumb a {
  color: var(--accent-blue);
  text-decoration: none;
}

.article-title {
  font-size: 2.25rem;
  font-weight: 800;
  line-height: 1.25;
  margin-bottom: 16px;
}

.article-meta {
  display: flex;
  align-items: center;
  gap: 20px;
  font-size: 0.85rem;
  color: var(--text-subtle);
  padding-bottom: 24px;
  border-bottom: 1px solid var(--border-light);
  margin-bottom: 32px;
}

.article-body h2 {
  font-size: 1.5rem;
  margin: 32px 0 16px;
  padding-bottom: 8px;
  border-bottom: 2px solid var(--accent-blue-light);
}

.article-body h3 {
  font-size: 1.2rem;
  margin: 24px 0 12px;
}

.article-body p {
  margin-bottom: 20px;
  color: var(--text-muted);
  font-size: 1.025rem;
  line-height: 1.8;
}

.article-body ul, .article-body ol {
  margin: 0 0 24px 24px;
  color: var(--text-muted);
}

.article-body li {
  margin-bottom: 8px;
  line-height: 1.6;
}

.callout-box {
  background: var(--accent-blue-light);
  border-left: 4px solid var(--accent-blue);
  padding: 20px;
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
  margin: 28px 0;
}

.callout-box h4 {
  color: var(--accent-blue);
  font-size: 1rem;
  margin-bottom: 8px;
}

.callout-box p {
  margin-bottom: 0;
  font-size: 0.95rem;
  color: #1e3a8a;
}

.code-block {
  background: #0f172a;
  color: #f8fafc;
  padding: 20px;
  border-radius: var(--radius-md);
  font-family: monospace;
  font-size: 0.875rem;
  overflow-x: auto;
  margin: 24px 0;
}

.article-cta {
  background: linear-gradient(135deg, #eff6ff 0%, #dbeafe 100%);
  border: 1px solid #bfdbfe;
  border-radius: var(--radius-lg);
  padding: 32px;
  text-align: center;
  margin-top: 48px;
}

.article-cta h3 {
  font-size: 1.35rem;
  color: #1e3a8a;
  margin-bottom: 12px;
}

.article-cta p {
  color: #2563eb;
  margin-bottom: 20px;
}

/* Footer */
.footer {
  background: #0f172a;
  color: #94a3b8;
  padding: 60px 0 30px;
  font-size: 0.9rem;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr repeat(3, 1fr);
  gap: 40px;
  margin-bottom: 40px;
}

.footer-brand h3 {
  color: #ffffff;
  font-size: 1.35rem;
  margin-bottom: 16px;
}

.footer-brand p {
  line-height: 1.6;
  max-width: 320px;
}

.footer-col h4 {
  color: #ffffff;
  font-size: 1rem;
  margin-bottom: 16px;
}

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

.footer-col a {
  color: #94a3b8;
  text-decoration: none;
  transition: var(--transition);
}

.footer-col a:hover {
  color: #ffffff;
}

.footer-bottom {
  padding-top: 30px;
  border-top: 1px solid #1e293b;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 16px;
  font-size: 0.85rem;
}

/* Responsive Breakpoints */
@media (max-width: 1024px) {
  .multi-column-grid {
    grid-template-columns: 1fr;
  }

  .sidebar {
    position: static;
  }

  .article-container {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 768px) {
  .hero-title {
    font-size: 2rem;
  }

  .nav-links {
    display: none;
  }

  .mobile-toggle {
    display: block;
  }

  .hero-section {
    padding: 32px 20px;
  }

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