/* ==========================================================================
   良心云机场 (Liangxinyun Airport) - Glacial Nordic Clean Design System
   Style: 北欧极地冰川风格 (Glacial Nordic Clean)
   Colors: Pure Ice White, Ultra-light Ice Blue (#E0F2FE), Frost Cyan (#0284C7 / #38BDF8), Polar Steel (#0F172A)
   ========================================================================== */

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

:root {
  --font-base: 'Inter', 'Noto Sans SC', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  
  /* Glacial Color Tokens */
  --bg-glacial: #FAFCFF;
  --bg-ice-alt: #F0F7FF;
  --bg-card: rgba(255, 255, 255, 0.75);
  --bg-card-hover: rgba(255, 255, 255, 0.92);
  
  --ice-blue-50: #F0F9FF;
  --ice-blue-100: #E0F2FE;
  --ice-blue-200: #BAE6FD;
  --ice-blue-400: #38BDF8;
  --ice-blue-600: #0284C7;
  --ice-blue-900: #0C4A6E;
  
  --steel-900: #0F172A;
  --steel-800: #1E293B;
  --steel-700: #334155;
  --steel-600: #475569;
  --steel-400: #94A3B8;
  --steel-200: #E2E8F0;
  
  /* Borders & Shadows */
  --ice-border: 1px solid rgba(224, 242, 254, 0.8);
  --ice-edge-highlight: 1px solid rgba(255, 255, 255, 0.95);
  --ice-shadow-sm: 0 4px 16px rgba(14, 165, 233, 0.04), 0 0 0 1px rgba(255, 255, 255, 0.8) inset;
  --ice-shadow-md: 0 12px 32px rgba(14, 165, 233, 0.08), 0 0 0 1px rgba(255, 255, 255, 0.9) inset;
  --ice-shadow-lg: 0 24px 48px rgba(14, 165, 233, 0.12), 0 0 0 1px #FFFFFF inset;
  --ice-glow: 0 0 25px rgba(56, 189, 248, 0.35);

  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 20px;
  --radius-xl: 28px;
  
  --transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}

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

html {
  font-family: var(--font-base);
  font-size: 16px;
  scroll-behavior: smooth;
  background-color: var(--bg-glacial);
  color: var(--steel-800);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

body {
  overflow-x: hidden;
  position: relative;
  background: radial-gradient(circle at 50% 0%, #E0F2FE 0%, #FAFCFF 70%);
  min-height: 100vh;
}

/* Polar Glacier Ambient Background Decor */
body::before {
  content: '';
  position: fixed;
  top: -10vw;
  right: -10vw;
  width: 50vw;
  height: 50vw;
  background: radial-gradient(circle, rgba(56, 189, 248, 0.08) 0%, rgba(224, 242, 254, 0) 70%);
  z-index: -1;
  pointer-events: none;
  border-radius: 50%;
  filter: blur(60px);
}

body::after {
  content: '';
  position: fixed;
  bottom: -10vw;
  left: -10vw;
  width: 60vw;
  height: 60vw;
  background: radial-gradient(circle, rgba(14, 165, 233, 0.05) 0%, rgba(224, 242, 254, 0) 70%);
  z-index: -1;
  pointer-events: none;
  border-radius: 50%;
  filter: blur(80px);
}

a {
  color: var(--ice-blue-600);
  text-decoration: none;
  transition: var(--transition);
}

a:hover {
  color: var(--ice-blue-400);
}

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

.container {
  width: 100%;
  max-width: 1240px;
  margin: 0 auto;
  padding: 0 24px;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
  color: var(--steel-900);
  font-weight: 700;
  line-height: 1.25;
  letter-spacing: -0.02em;
}

h1 { font-size: 2.75rem; }
h2 { font-size: 2.1rem; }
h3 { font-size: 1.4rem; }

@media (max-width: 768px) {
  h1 { font-size: 2rem; }
  h2 { font-size: 1.65rem; }
  h3 { font-size: 1.2rem; }
}

.section-title {
  text-align: center;
  margin-bottom: 48px;
}

.section-title h2 {
  position: relative;
  display: inline-block;
  color: var(--steel-900);
}

.section-title h2::after {
  content: '';
  display: block;
  width: 48px;
  height: 3px;
  background: linear-gradient(90deg, var(--ice-blue-400), var(--ice-blue-600));
  margin: 12px auto 0;
  border-radius: 2px;
  box-shadow: 0 0 10px rgba(56, 189, 248, 0.5);
}

.section-title p {
  color: var(--steel-600);
  font-size: 1.05rem;
  margin-top: 12px;
}

/* Navigation Bar */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: rgba(250, 252, 255, 0.85);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid rgba(224, 242, 254, 0.6);
  transition: var(--transition);
}

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

.brand-logo {
  display: flex;
  align-items: center;
  gap: 12px;
  font-weight: 700;
  font-size: 1.35rem;
  color: var(--steel-900);
  letter-spacing: -0.01em;
}

.brand-logo .logo-icon {
  width: 38px;
  height: 38px;
  background: linear-gradient(135deg, #E0F2FE 0%, #BAE6FD 100%);
  border: 1px solid rgba(255, 255, 255, 0.9);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--ice-shadow-sm);
  color: var(--ice-blue-600);
}

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

.nav-links a {
  color: var(--steel-700);
  font-weight: 500;
  font-size: 0.95rem;
  position: relative;
  padding: 6px 0;
}

.nav-links a:hover,
.nav-links a.active {
  color: var(--ice-blue-600);
}

.nav-links a::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--ice-blue-600);
  transition: var(--transition);
  border-radius: 1px;
}

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

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

/* Buttons (Glacial Nordic Refraction) */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 26px;
  font-size: 0.95rem;
  font-weight: 600;
  border-radius: var(--radius-md);
  transition: var(--transition);
  cursor: pointer;
  border: none;
  outline: none;
  position: relative;
  overflow: hidden;
  text-decoration: none;
}

.btn-primary {
  background: linear-gradient(135deg, #0284C7 0%, #0369A1 100%);
  color: #FFFFFF;
  box-shadow: 0 8px 24px rgba(2, 132, 199, 0.25), inset 0 1px 0 rgba(255, 255, 255, 0.3);
  border: 1px solid rgba(255, 255, 255, 0.4);
}

.btn-primary::after {
  content: '';
  position: absolute;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background: linear-gradient(60deg, transparent, rgba(255, 255, 255, 0.25), transparent);
  transform: rotate(30deg) translateY(-100%);
  transition: transform 0.6s ease;
}

.btn-primary:hover::after {
  transform: rotate(30deg) translateY(100%);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 12px 30px rgba(2, 132, 199, 0.35), var(--ice-glow);
  color: #FFFFFF;
}

.btn-secondary {
  background: var(--bg-card);
  backdrop-filter: blur(12px);
  color: var(--steel-800);
  border: var(--ice-border);
  box-shadow: var(--ice-shadow-sm);
}

.btn-secondary:hover {
  background: #FFFFFF;
  color: var(--ice-blue-600);
  border-color: var(--ice-blue-200);
  transform: translateY(-2px);
  box-shadow: var(--ice-shadow-md);
}

.mobile-menu-btn {
  display: none;
  background: none;
  border: none;
  color: var(--steel-800);
  font-size: 1.5rem;
  cursor: pointer;
}

/* Frosted Ice Glass Card */
.ice-card {
  background: var(--bg-card);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: var(--ice-border);
  border-top: var(--ice-edge-highlight);
  border-radius: var(--radius-lg);
  padding: 32px;
  box-shadow: var(--ice-shadow-md);
  transition: var(--transition);
}

.ice-card:hover {
  background: var(--bg-card-hover);
  transform: translateY(-4px);
  box-shadow: var(--ice-shadow-lg), 0 0 20px rgba(56, 189, 248, 0.15);
  border-color: var(--ice-blue-200);
}

/* Hero Section */
.hero {
  padding: 160px 0 90px;
  position: relative;
  overflow: hidden;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}

.hero-tag {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 16px;
  background: rgba(224, 242, 254, 0.7);
  border: 1px solid rgba(56, 189, 248, 0.4);
  border-radius: 30px;
  color: var(--ice-blue-600);
  font-size: 0.85rem;
  font-weight: 600;
  margin-bottom: 24px;
  backdrop-filter: blur(8px);
}

.hero-tag .dot {
  width: 8px;
  height: 8px;
  background: var(--ice-blue-400);
  border-radius: 50%;
  box-shadow: 0 0 8px var(--ice-blue-400);
  animation: pulse 2s infinite;
}

@keyframes pulse {
  0% { transform: scale(0.95); box-shadow: 0 0 0 0 rgba(56, 189, 248, 0.7); }
  70% { transform: scale(1); box-shadow: 0 0 0 8px rgba(56, 189, 248, 0); }
  100% { transform: scale(0.95); box-shadow: 0 0 0 0 rgba(56, 189, 248, 0); }
}

.hero-content h1 {
  font-size: 3.2rem;
  margin-bottom: 20px;
  color: var(--steel-900);
  letter-spacing: -0.03em;
}

.hero-content h1 span {
  background: linear-gradient(135deg, #0284C7 0%, #0369A1 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero-content p {
  font-size: 1.15rem;
  color: var(--steel-600);
  margin-bottom: 36px;
  max-width: 540px;
  line-height: 1.7;
}

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

.hero-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-top: 48px;
  padding-top: 32px;
  border-top: 1px solid rgba(224, 242, 254, 0.8);
}

.stat-item .num {
  font-size: 1.8rem;
  font-weight: 700;
  color: var(--steel-900);
}

.stat-item .label {
  font-size: 0.85rem;
  color: var(--steel-600);
}

.hero-image-wrapper {
  position: relative;
  display: flex;
  justify-content: center;
}

.hero-img-card {
  position: relative;
  border-radius: var(--radius-xl);
  overflow: hidden;
  border: var(--ice-edge-highlight);
  box-shadow: var(--ice-shadow-lg);
  background: rgba(255, 255, 255, 0.4);
}

.hero-img-card img {
  width: 100%;
  height: auto;
  object-fit: cover;
}

/* Features / Advantages Grid */
.features-section {
  padding: 80px 0;
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 30px;
}

.feature-icon {
  width: 54px;
  height: 54px;
  background: linear-gradient(135deg, #E0F2FE 0%, #BAE6FD 100%);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--ice-blue-600);
  font-size: 1.5rem;
  margin-bottom: 24px;
  border: 1px solid rgba(255, 255, 255, 0.9);
  box-shadow: var(--ice-shadow-sm);
}

.feature-card h3 {
  margin-bottom: 12px;
}

.feature-card p {
  color: var(--steel-600);
  font-size: 0.95rem;
}

/* Pricing Section (Matching uploaded reference image format) */
.pricing-section {
  padding: 80px 0;
  background: radial-gradient(circle at 50% 50%, rgba(224, 242, 254, 0.5) 0%, rgba(250, 252, 255, 0) 80%);
}

.pricing-table-container {
  background: rgba(255, 255, 255, 0.85);
  backdrop-filter: blur(20px);
  border-radius: var(--radius-lg);
  border: var(--ice-border);
  border-top: var(--ice-edge-highlight);
  box-shadow: var(--ice-shadow-lg);
  overflow: hidden;
  margin-bottom: 40px;
}

.pricing-table {
  width: 100%;
  border-collapse: collapse;
  text-align: left;
}

.pricing-table th {
  background: #F0F7FF;
  color: #1E3A8A;
  font-weight: 600;
  font-size: 0.95rem;
  padding: 20px 28px;
  border-bottom: 1px solid #E0F2FE;
}

.pricing-table td {
  padding: 24px 28px;
  border-bottom: 1px solid #F1F5F9;
  color: var(--steel-800);
  font-size: 0.95rem;
}

.pricing-table tr:last-child td {
  border-bottom: none;
}

.pricing-table tr:hover td {
  background: rgba(240, 247, 255, 0.4);
}

.plan-name {
  font-weight: 700;
  font-size: 1.1rem;
  color: var(--steel-900);
}

.plan-price {
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--steel-900);
}

.plan-price span {
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--steel-600);
}

.pricing-cards-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 30px;
  margin-top: 40px;
}

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

.pricing-card.featured {
  border-color: var(--ice-blue-400);
  box-shadow: 0 20px 40px rgba(2, 132, 199, 0.15), 0 0 0 2px var(--ice-blue-400) inset;
  background: #FFFFFF;
}

.pricing-badge {
  position: absolute;
  top: -14px;
  right: 24px;
  background: linear-gradient(135deg, #0284C7 0%, #0369A1 100%);
  color: #FFFFFF;
  font-size: 0.75rem;
  font-weight: 700;
  padding: 4px 14px;
  border-radius: 20px;
  box-shadow: 0 4px 12px rgba(2, 132, 199, 0.3);
}

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

.pricing-header .title {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--steel-900);
  margin-bottom: 8px;
}

.pricing-header .price-val {
  font-size: 2.4rem;
  font-weight: 800;
  color: var(--steel-900);
}

.pricing-header .price-val sub {
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--steel-600);
  bottom: 0;
}

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

.pricing-features li {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 0.95rem;
  color: var(--steel-700);
  margin-bottom: 12px;
}

.pricing-features li svg {
  color: var(--ice-blue-600);
  flex-shrink: 0;
}

/* Coupon Banner */
.coupon-banner {
  margin-top: 40px;
  background: linear-gradient(135deg, #E0F2FE 0%, #BAE6FD 100%);
  border: 1px solid rgba(255, 255, 255, 0.9);
  border-radius: var(--radius-md);
  padding: 20px 32px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  box-shadow: var(--ice-shadow-sm);
}

.coupon-info h4 {
  font-size: 1.1rem;
  color: var(--steel-900);
}

.coupon-info p {
  font-size: 0.9rem;
  color: var(--steel-700);
}

.coupon-code-box {
  display: flex;
  align-items: center;
  gap: 12px;
  background: #FFFFFF;
  padding: 8px 16px;
  border-radius: var(--radius-sm);
  border: 1px dashed var(--ice-blue-400);
}

.coupon-code {
  font-family: monospace;
  font-weight: 700;
  font-size: 1.1rem;
  color: var(--ice-blue-600);
  letter-spacing: 0.05em;
}

/* Audience Section */
.audience-section {
  padding: 80px 0;
}

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

.audience-card {
  text-align: center;
  padding: 32px 20px;
}

.audience-card .icon-wrap {
  width: 60px;
  height: 60px;
  margin: 0 auto 20px;
  background: var(--ice-blue-100);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--ice-blue-600);
  font-size: 1.5rem;
  box-shadow: var(--ice-shadow-sm);
}

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

.audience-card p {
  font-size: 0.9rem;
  color: var(--steel-600);
}

/* Tutorials Tabbed Section */
.tutorial-section {
  padding: 80px 0;
  background: var(--bg-ice-alt);
}

.tutorial-tabs {
  display: flex;
  justify-content: center;
  gap: 12px;
  margin-bottom: 40px;
  flex-wrap: wrap;
}

.tab-btn {
  padding: 10px 24px;
  background: rgba(255, 255, 255, 0.6);
  border: var(--ice-border);
  border-radius: 30px;
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--steel-700);
  cursor: pointer;
  transition: var(--transition);
}

.tab-btn.active, .tab-btn:hover {
  background: var(--ice-blue-600);
  color: #FFFFFF;
  border-color: var(--ice-blue-600);
  box-shadow: 0 4px 16px rgba(2, 132, 199, 0.25);
}

.tab-content {
  display: none;
}

.tab-content.active {
  display: block;
  animation: fadeIn 0.4s ease;
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(10px); }
  to { opacity: 1; transform: translateY(0); }
}

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

.step-card {
  position: relative;
}

.step-num {
  font-size: 2.5rem;
  font-weight: 900;
  color: var(--ice-blue-200);
  line-height: 1;
  margin-bottom: 12px;
}

.step-card h4 {
  font-size: 1.1rem;
  margin-bottom: 8px;
  color: var(--steel-900);
}

.step-card p {
  font-size: 0.9rem;
  color: var(--steel-600);
}

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

.reviews-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 30px;
}

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

.review-text {
  font-size: 0.95rem;
  color: var(--steel-700);
  font-style: italic;
  margin-bottom: 20px;
  line-height: 1.7;
}

.review-author {
  display: flex;
  align-items: center;
  gap: 14px;
}

.author-avatar {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: linear-gradient(135deg, #BAE6FD 0%, #0284C7 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #FFFFFF;
  font-weight: 700;
  font-size: 1rem;
}

.author-info h4 {
  font-size: 0.95rem;
  margin-bottom: 2px;
}

.author-info p {
  font-size: 0.8rem;
  color: var(--steel-400);
}

/* FAQ Accordion Section */
.faq-section {
  padding: 80px 0;
  background: var(--bg-ice-alt);
}

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

.faq-item {
  background: rgba(255, 255, 255, 0.85);
  border: var(--ice-border);
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--ice-shadow-sm);
  transition: var(--transition);
}

.faq-question {
  padding: 20px 24px;
  font-weight: 600;
  font-size: 1.05rem;
  color: var(--steel-900);
  display: flex;
  align-items: center;
  justify-content: space-between;
  cursor: pointer;
}

.faq-question .icon {
  width: 24px;
  height: 24px;
  color: var(--ice-blue-600);
  transition: transform 0.3s ease;
}

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

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.35s ease, padding 0.35s ease;
  padding: 0 24px;
  color: var(--steel-600);
  font-size: 0.95rem;
  line-height: 1.7;
}

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

/* Articles Directory Grid */
.articles-section {
  padding: 80px 0;
}

.articles-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 30px;
}

.article-card {
  display: flex;
  flex-direction: column;
  height: 100%;
}

.article-tag {
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--ice-blue-600);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 12px;
}

.article-card h3 {
  font-size: 1.15rem;
  margin-bottom: 12px;
  line-height: 1.4;
}

.article-card p {
  color: var(--steel-600);
  font-size: 0.9rem;
  margin-bottom: 20px;
  flex-grow: 1;
}

.article-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 0.8rem;
  color: var(--steel-400);
  padding-top: 16px;
  border-top: 1px solid var(--steel-200);
}

/* Article Detail Pages Styling */
.article-page {
  padding: 130px 0 80px;
}

.article-container {
  max-width: 860px;
  margin: 0 auto;
  background: rgba(255, 255, 255, 0.9);
  backdrop-filter: blur(16px);
  border: var(--ice-border);
  border-top: var(--ice-edge-highlight);
  border-radius: var(--radius-xl);
  padding: 48px;
  box-shadow: var(--ice-shadow-lg);
}

.article-header {
  margin-bottom: 40px;
  border-bottom: 1px solid var(--ice-blue-100);
  padding-bottom: 24px;
}

.breadcrumb {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.85rem;
  color: var(--steel-400);
  margin-bottom: 16px;
}

.article-header h1 {
  font-size: 2.2rem;
  margin-bottom: 16px;
  line-height: 1.3;
}

.article-header .meta-bar {
  display: flex;
  align-items: center;
  gap: 20px;
  font-size: 0.85rem;
  color: var(--steel-600);
}

.article-content {
  font-size: 1.05rem;
  line-height: 1.85;
  color: var(--steel-800);
}

.article-content h2 {
  font-size: 1.6rem;
  margin: 36px 0 16px;
  padding-bottom: 8px;
  border-bottom: 2px solid var(--ice-blue-100);
  color: var(--steel-900);
}

.article-content h3 {
  font-size: 1.25rem;
  margin: 24px 0 12px;
  color: var(--steel-900);
}

.article-content p {
  margin-bottom: 20px;
}

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

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

.article-cta-box {
  background: linear-gradient(135deg, #F0F7FF 0%, #E0F2FE 100%);
  border: 1px solid rgba(56, 189, 248, 0.4);
  border-radius: var(--radius-lg);
  padding: 32px;
  text-align: center;
  margin: 40px 0;
  box-shadow: var(--ice-shadow-md);
}

.article-cta-box h3 {
  margin-bottom: 12px;
  font-size: 1.4rem;
}

.article-cta-box p {
  margin-bottom: 24px;
  color: var(--steel-700);
}

.article-faq-box {
  margin-top: 48px;
  padding-top: 32px;
  border-top: 2px dashed var(--ice-blue-200);
}

.related-articles {
  margin-top: 48px;
}

.related-articles h3 {
  margin-bottom: 20px;
}

.related-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
}

/* Footer Styling */
.footer {
  background: #0F172A;
  color: #94A3B8;
  padding: 80px 0 30px;
  border-top: 1px solid rgba(56, 189, 248, 0.2);
  margin-top: 60px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 40px;
  margin-bottom: 60px;
}

.footer-brand .logo {
  color: #FFFFFF;
  font-size: 1.4rem;
  font-weight: 700;
  margin-bottom: 16px;
  display: inline-block;
}

.footer-brand p {
  font-size: 0.9rem;
  line-height: 1.7;
  max-width: 320px;
  color: #64748B;
}

.footer-col h4 {
  color: #FFFFFF;
  font-size: 1rem;
  margin-bottom: 20px;
}

.footer-col ul {
  list-style: none;
}

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

.footer-col ul a {
  color: #94A3B8;
  font-size: 0.9rem;
}

.footer-col ul a:hover {
  color: #38BDF8;
}

.footer-bottom {
  padding-top: 30px;
  border-top: 1px solid #1E293B;
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 0.85rem;
  color: #64748B;
  flex-wrap: wrap;
  gap: 16px;
}

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

  .steps-list {
    grid-template-columns: 1fr;
  }

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

@media (max-width: 768px) {
  .hero-grid {
    grid-template-columns: 1fr;
    gap: 40px;
    text-align: center;
  }

  .hero-content p {
    margin: 0 auto 36px;
  }

  .hero-btns {
    justify-content: center;
  }

  .hero-stats {
    grid-template-columns: repeat(3, 1fr);
  }

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

  .pricing-table-container {
    overflow-x: auto;
  }

  .pricing-table {
    min-width: 600px;
  }

  .coupon-banner {
    flex-direction: column;
    text-align: center;
  }

  .nav-links {
    position: fixed;
    top: 76px;
    left: -100%;
    width: 100%;
    height: calc(100vh - 76px);
    background: #FAFCFF;
    flex-direction: column;
    padding: 40px 24px;
    gap: 24px;
    transition: var(--transition);
  }

  .nav-links.active {
    left: 0;
  }

  .mobile-menu-btn {
    display: block;
  }

  .nav-cta {
    display: none;
  }

  .article-container {
    padding: 24px;
  }

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