/* ===================================================================
   Now加速·家宽机场 - Official Stylesheet (Pure Native CSS3)
   Optimized for Sub-Second Loading, Ultra-Responsive UX & Maximum SERP
   Theme: Cyber Azure & Electric Cyan
   =================================================================== */

:root {
  /* Color Palette: Cyber Azure, Electric Cyan & Deep Tech Navy */
  --bg-dark: #070a12;
  --bg-surface: #0c1220;
  --bg-card: #121a2d;
  --bg-card-hover: #18223a;
  --border-subtle: rgba(255, 255, 255, 0.08);
  --border-focus: rgba(56, 189, 248, 0.35);

  /* Primary Accent: Electric Cyan & Azure Blue */
  --cyan-300: #7dd3fc;
  --cyan-400: #38bdf8;
  --cyan-500: #0ea5e9;
  --blue-600: #2563eb;
  --blue-700: #1d4ed8;
  --cyan-glow: rgba(56, 189, 248, 0.28);
  --blue-glow: rgba(37, 99, 235, 0.32);

  /* Accent Highlight: Solar Gold & Amber */
  --amber-400: #fbbf24;
  --amber-500: #f59e0b;
  --amber-glow: rgba(245, 158, 11, 0.28);

  /* Status Colors */
  --emerald-400: #34d399;
  --emerald-500: #10b981;

  /* Typography */
  --text-primary: #f8fafc;
  --text-secondary: #94a3b8;
  --text-muted: #64748b;
  --font-base: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;

  /* Spacing & Radii */
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 20px;
  --radius-full: 9999px;

  /* Transition */
  --transition: all 0.25s cubic-bezier(0.16, 1, 0.3, 1);
}

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

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

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

/* Global Subtle Ambient Grid Background */
body::before {
  content: "";
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-image: 
    radial-gradient(circle at 50% 0%, rgba(56, 189, 248, 0.08) 0%, transparent 60%),
    linear-gradient(rgba(255, 255, 255, 0.015) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.015) 1px, transparent 1px);
  background-size: 100% 100%, 48px 48px, 48px 48px;
  pointer-events: none;
  z-index: 0;
}

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

/* Link Styles */
a {
  color: inherit;
  text-decoration: none;
  transition: var(--transition);
}

/* Section Common Styles */
section {
  padding: 80px 0;
  position: relative;
  z-index: 1;
}

.section-header {
  text-align: center;
  max-width: 780px;
  margin: 0 auto 56px auto;
}

.section-tag {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 16px;
  background: rgba(56, 189, 248, 0.08);
  border: 1px solid rgba(56, 189, 248, 0.25);
  border-radius: var(--radius-full);
  color: var(--cyan-400);
  font-size: 0.875rem;
  font-weight: 600;
  letter-spacing: 0.5px;
  margin-bottom: 16px;
}

.section-title {
  font-size: 2.25rem;
  font-weight: 800;
  line-height: 1.3;
  margin-bottom: 16px;
  color: var(--text-primary);
  letter-spacing: -0.5px;
}

.section-desc {
  font-size: 1.0625rem;
  color: var(--text-secondary);
  line-height: 1.7;
}

.gradient-text {
  background: linear-gradient(135deg, #38bdf8 0%, #60a5fa 50%, #93c5fd 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.gold-text {
  background: linear-gradient(135deg, #fbbf24 0%, #f59e0b 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  font-weight: 600;
  border-radius: var(--radius-full);
  cursor: pointer;
  transition: var(--transition);
  border: 1px solid transparent;
  white-space: nowrap;
  text-align: center;
  text-decoration: none;
}

.btn-primary {
  background: linear-gradient(135deg, var(--cyan-400) 0%, var(--blue-600) 100%);
  color: #ffffff;
  box-shadow: 0 4px 18px var(--cyan-glow);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 24px rgba(56, 189, 248, 0.45);
  filter: brightness(1.08);
}

.btn-secondary {
  background: rgba(255, 255, 255, 0.05);
  color: var(--text-primary);
  border: 1px solid rgba(255, 255, 255, 0.15);
}

.btn-secondary:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: var(--cyan-400);
  color: var(--cyan-300);
  transform: translateY(-2px);
}

.btn-amber {
  background: linear-gradient(135deg, #f59e0b 0%, #d97706 100%);
  color: #ffffff;
  box-shadow: 0 4px 18px var(--amber-glow);
}

.btn-amber:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 24px rgba(245, 158, 11, 0.45);
  filter: brightness(1.08);
}

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

.btn-md {
  padding: 12px 26px;
  font-size: 0.975rem;
}

.btn-lg {
  padding: 16px 36px;
  font-size: 1.125rem;
  letter-spacing: 0.5px;
}

.btn-block {
  width: 100%;
}

/* ===================================================================
   Navbar Component (Sticky, Transparent Glassmorphism)
   =================================================================== */
.navbar {
  position: sticky;
  top: 0;
  width: 100%;
  background: rgba(7, 10, 18, 0.82);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border-subtle);
  z-index: 1000;
  transition: var(--transition);
}

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

.brand-logo {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 1.25rem;
  font-weight: 800;
  color: #ffffff;
  letter-spacing: 0.5px;
}

.brand-logo-img {
  width: 36px;
  height: 36px;
  border-radius: var(--radius-sm);
  display: block;
}

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

.nav-link {
  font-size: 0.9375rem;
  color: var(--text-secondary);
  font-weight: 500;
  position: relative;
  padding: 6px 0;
}

.nav-link:hover {
  color: var(--cyan-300);
}

.nav-link::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--cyan-400);
  transition: width 0.25s ease;
  border-radius: 2px;
}

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

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

.mobile-menu-btn {
  display: none;
  background: transparent;
  border: 1px solid var(--border-subtle);
  color: var(--text-primary);
  padding: 8px;
  border-radius: var(--radius-sm);
  cursor: pointer;
}

.mobile-drawer {
  display: none;
  background: var(--bg-surface);
  border-bottom: 1px solid var(--border-subtle);
  padding: 16px 24px;
}

.mobile-drawer.open {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

/* ===================================================================
   Hero Section
   =================================================================== */
.hero-section {
  padding: 80px 0 100px 0;
  position: relative;
  overflow: hidden;
}

.hero-glow-1 {
  position: absolute;
  top: -100px;
  left: 10%;
  width: 500px;
  height: 500px;
  background: radial-gradient(circle, rgba(56, 189, 248, 0.15) 0%, transparent 70%);
  pointer-events: none;
  filter: blur(60px);
}

.hero-glow-2 {
  position: absolute;
  bottom: 0;
  right: 5%;
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(37, 99, 235, 0.12) 0%, transparent 70%);
  pointer-events: none;
  filter: blur(80px);
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 48px;
  align-items: center;
}

.discount-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 18px;
  background: rgba(245, 158, 11, 0.12);
  border: 1px solid rgba(245, 158, 11, 0.4);
  border-radius: var(--radius-full);
  color: #fbbf24;
  font-size: 0.9375rem;
  font-weight: 700;
  margin-bottom: 24px;
  animation: pulse-glow 3s infinite;
}

@keyframes pulse-glow {
  0%, 100% { box-shadow: 0 0 12px rgba(245, 158, 11, 0.2); }
  50% { box-shadow: 0 0 24px rgba(245, 158, 11, 0.45); }
}

.hero-title {
  font-size: 3rem;
  font-weight: 900;
  line-height: 1.2;
  margin-bottom: 20px;
  letter-spacing: -1px;
}

.hero-subtitle {
  font-size: 1.125rem;
  color: var(--text-secondary);
  line-height: 1.8;
  margin-bottom: 36px;
  max-width: 620px;
}

.hero-cta-group {
  display: flex;
  align-items: center;
  gap: 18px;
  flex-wrap: wrap;
}

/* Hero Right: Tech Graphic with Floating Badges */
.hero-art-col {
  position: relative;
  display: flex;
  justify-content: center;
  align-items: center;
}

.hero-graphic-wrap {
  position: relative;
  width: 100%;
  max-width: 440px;
  aspect-ratio: 1;
  display: flex;
  justify-content: center;
  align-items: center;
}

.art-halo {
  position: absolute;
  inset: 0;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(56, 189, 248, 0.18) 0%, rgba(37, 99, 235, 0.05) 50%, transparent 70%);
  animation: pulse 6s ease-in-out infinite alternate;
}

@keyframes pulse {
  0% { transform: scale(0.95); opacity: 0.7; }
  100% { transform: scale(1.08); opacity: 1; }
}

.art-floating-badge {
  position: absolute;
  padding: 10px 16px;
  background: rgba(12, 18, 32, 0.88);
  border: 1px solid var(--border-focus);
  backdrop-filter: blur(12px);
  border-radius: var(--radius-md);
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--text-primary);
  display: flex;
  align-items: center;
  gap: 8px;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.4);
  z-index: 10;
  white-space: nowrap;
}

.badge-top-left {
  top: 10%;
  left: -20px;
  animation: float 4.5s ease-in-out infinite;
}

.badge-bottom-right {
  bottom: 12%;
  right: -20px;
  animation: float 5s ease-in-out infinite 1s;
}

.badge-bottom-left {
  bottom: 8%;
  left: 5%;
  animation: float 4.8s ease-in-out infinite 0.5s;
}

@keyframes float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-8px); }
}

.ping-indicator {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--emerald-400);
  box-shadow: 0 0 8px var(--emerald-400);
}

/* ===================================================================
   Dynamic Cards Section (Core Advantages)
   =================================================================== */
.cards-grid-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
  margin-bottom: 32px;
}

.feature-card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 36px 30px;
  transition: var(--transition);
  position: relative;
  overflow: hidden;
  display: flex;
  flex-direction: column;
}

.feature-card:hover {
  transform: translateY(-6px);
  border-color: var(--border-focus);
  background: var(--bg-card-hover);
  box-shadow: 0 16px 40px rgba(0, 0, 0, 0.35);
}

.card-icon-wrap {
  width: 60px;
  height: 60px;
  border-radius: var(--radius-md);
  background: rgba(56, 189, 248, 0.1);
  border: 1px solid rgba(56, 189, 248, 0.25);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 24px;
  color: var(--cyan-400);
}

.card-title {
  font-size: 1.35rem;
  font-weight: 700;
  margin-bottom: 14px;
  color: var(--text-primary);
}

.card-desc {
  font-size: 0.975rem;
  color: var(--text-secondary);
  line-height: 1.7;
}

/* Streaming & AI Support Feature Banner */
.media-ai-card {
  background: linear-gradient(135deg, rgba(18, 26, 45, 0.95) 0%, rgba(12, 18, 32, 0.98) 100%);
  border: 1px solid rgba(56, 189, 248, 0.25);
  border-radius: var(--radius-lg);
  padding: 40px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 36px;
  align-items: center;
  margin-top: 32px;
  box-shadow: 0 12px 36px rgba(0, 0, 0, 0.3);
}

.media-ai-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 20px;
}

.media-tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 16px;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: var(--radius-full);
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--text-primary);
}

.media-tag:hover {
  background: rgba(56, 189, 248, 0.12);
  border-color: rgba(56, 189, 248, 0.3);
  color: var(--cyan-300);
}

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

.pricing-card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 40px 32px;
  display: flex;
  flex-direction: column;
  position: relative;
  transition: var(--transition);
}

.pricing-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 20px 48px rgba(0, 0, 0, 0.4);
}

.pricing-card.featured {
  background: linear-gradient(180deg, rgba(24, 34, 58, 0.95) 0%, rgba(18, 26, 45, 0.98) 100%);
  border: 2px solid var(--cyan-400);
  box-shadow: 0 12px 40px var(--cyan-glow);
  transform: scale(1.02);
}

.pricing-card.featured:hover {
  transform: scale(1.02) translateY(-6px);
  box-shadow: 0 20px 52px rgba(56, 189, 248, 0.38);
}

.card-badge {
  position: absolute;
  top: -14px;
  right: 28px;
  padding: 4px 14px;
  background: linear-gradient(135deg, var(--cyan-400) 0%, var(--blue-600) 100%);
  border-radius: var(--radius-full);
  color: #ffffff;
  font-size: 0.8125rem;
  font-weight: 700;
  letter-spacing: 0.5px;
  box-shadow: 0 4px 12px var(--cyan-glow);
}

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

.tier-name {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 8px;
}

.tier-desc {
  font-size: 0.9rem;
  color: var(--text-secondary);
}

.price-wrap {
  display: flex;
  align-items: baseline;
  gap: 4px;
  margin: 20px 0;
}

.currency {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--cyan-400);
}

.amount {
  font-size: 3rem;
  font-weight: 900;
  color: #ffffff;
  line-height: 1;
}

.period {
  font-size: 0.9375rem;
  color: var(--text-muted);
}

.traffic-pill {
  display: inline-block;
  padding: 6px 14px;
  background: rgba(56, 189, 248, 0.1);
  border: 1px solid rgba(56, 189, 248, 0.2);
  border-radius: var(--radius-sm);
  color: var(--cyan-300);
  font-size: 0.9rem;
  font-weight: 600;
  margin-bottom: 24px;
}

.feature-list {
  list-style: none;
  margin-bottom: 32px;
  display: flex;
  flex-direction: column;
  gap: 14px;
  flex-grow: 1;
}

.feature-item {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: 0.9375rem;
  color: var(--text-secondary);
  line-height: 1.5;
}

.check-icon {
  width: 18px;
  height: 18px;
  color: var(--emerald-400);
  flex-shrink: 0;
  margin-top: 2px;
}

/* ===================================================================
   Supported Platforms & Download Section
   =================================================================== */
.download-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.download-card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 32px 24px;
  text-align: center;
  transition: var(--transition);
  display: flex;
  flex-direction: column;
  align-items: center;
}

.download-card:hover {
  transform: translateY(-6px);
  border-color: var(--border-focus);
  background: var(--bg-card-hover);
  box-shadow: 0 16px 36px rgba(0, 0, 0, 0.35);
}

.platform-icon-wrap {
  width: 64px;
  height: 64px;
  border-radius: var(--radius-md);
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.1);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
  color: var(--cyan-400);
}

.platform-title {
  font-size: 1.25rem;
  font-weight: 700;
  margin-bottom: 8px;
  color: var(--text-primary);
}

.platform-clients {
  font-size: 0.85rem;
  color: var(--text-muted);
  line-height: 1.6;
  margin-bottom: 24px;
  min-height: 42px;
}

/* ===================================================================
   Why Choose Section (SEO/GEO/SERP Focused Features)
   =================================================================== */
.why-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.why-card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 28px 24px;
  transition: var(--transition);
}

.why-card:hover {
  border-color: var(--border-focus);
  background: var(--bg-card-hover);
  transform: translateY(-4px);
}

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

.why-emoji {
  font-size: 1.6rem;
  line-height: 1;
}

.why-title {
  font-size: 1.125rem;
  font-weight: 700;
  color: var(--text-primary);
}

.why-text {
  font-size: 0.925rem;
  color: var(--text-secondary);
  line-height: 1.65;
}

/* ===================================================================
   Testimonials Marquee Section
   =================================================================== */
.testimonials-section {
  overflow: hidden;
  position: relative;
  padding: 80px 0;
}

.marquee-container {
  width: 100%;
  overflow: hidden;
  position: relative;
  padding: 10px 0;
  mask-image: linear-gradient(to right, transparent 0%, black 10%, black 90%, transparent 100%);
  -webkit-mask-image: linear-gradient(to right, transparent 0%, black 10%, black 90%, transparent 100%);
}

.marquee-track {
  display: flex;
  gap: 24px;
  width: max-content;
  animation: scroll-marquee 45s linear infinite;
}

.marquee-track:hover {
  animation-play-state: paused;
}

@keyframes scroll-marquee {
  0% { transform: translateX(0); }
  100% { transform: translateX(-50%); }
}

.review-card {
  width: 360px;
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 26px;
  flex-shrink: 0;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.25);
  transition: var(--transition);
}

.review-card:hover {
  border-color: var(--border-focus);
  background: var(--bg-card-hover);
}

.review-stars {
  color: #fbbf24;
  font-size: 1rem;
  letter-spacing: 2px;
  margin-bottom: 14px;
}

.review-quote {
  font-size: 0.9375rem;
  color: var(--text-secondary);
  line-height: 1.65;
  margin-bottom: 20px;
  font-style: normal;
}

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

.author-avatar {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--cyan-400) 0%, var(--blue-600) 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  color: #ffffff;
  font-size: 1rem;
}

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

.author-title {
  font-size: 0.8125rem;
  color: var(--text-muted);
}

/* ===================================================================
   FAQ Section (Accordion with <details> and <summary>)
   =================================================================== */
.faq-list {
  max-width: 860px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

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

.faq-item[open] {
  border-color: var(--border-focus);
  background: var(--bg-card-hover);
}

.faq-question {
  padding: 22px 26px;
  font-size: 1.0625rem;
  font-weight: 700;
  color: var(--text-primary);
  cursor: pointer;
  list-style: none;
  display: flex;
  align-items: center;
  justify-content: space-between;
  user-select: none;
}

.faq-question::-webkit-details-marker {
  display: none;
}

.faq-icon {
  width: 20px;
  height: 20px;
  color: var(--cyan-400);
  transition: transform 0.3s ease;
  flex-shrink: 0;
}

.faq-item[open] .faq-icon {
  transform: rotate(180deg);
}

.faq-answer {
  padding: 0 26px 24px 26px;
  font-size: 0.95rem;
  color: var(--text-secondary);
  line-height: 1.75;
}

/* ===================================================================
   Bottom CTA Section
   =================================================================== */
.cta-banner-wrap {
  background: linear-gradient(135deg, rgba(14, 165, 233, 0.15) 0%, rgba(37, 99, 235, 0.1) 100%);
  border: 1px solid rgba(56, 189, 248, 0.35);
  border-radius: var(--radius-lg);
  padding: 64px 36px;
  text-align: center;
  position: relative;
  overflow: hidden;
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.4);
}

.cta-banner-wrap .section-title {
  margin-bottom: 18px;
}

.cta-banner-wrap .section-desc {
  max-width: 660px;
  margin: 0 auto 36px auto;
}

/* ===================================================================
   Footer (Strictly 4 Navigation Titles Only)
   =================================================================== */
.footer {
  background: #05070d;
  border-top: 1px solid var(--border-subtle);
  padding: 60px 0 40px 0;
  position: relative;
  z-index: 1;
}

.footer-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-bottom: 40px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
  flex-wrap: wrap;
  gap: 24px;
}

.footer-links-four {
  display: flex;
  align-items: center;
  gap: 36px;
  list-style: none;
  flex-wrap: wrap;
}

.footer-link-item a {
  font-size: 1rem;
  font-weight: 600;
  color: var(--text-secondary);
}

.footer-link-item a:hover {
  color: var(--cyan-300);
}

.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 32px;
  font-size: 0.875rem;
  color: var(--text-muted);
  flex-wrap: wrap;
  gap: 16px;
}

/* ===================================================================
   Auxiliary Content Pages (About, Terms, Privacy, Sitemap)
   =================================================================== */
.aux-page-header {
  padding: 60px 0 40px 0;
  text-align: center;
  border-bottom: 1px solid var(--border-subtle);
}

.aux-page-content {
  padding: 60px 0 100px 0;
  max-width: 860px;
  margin: 0 auto;
}

.aux-page-content h2 {
  font-size: 1.6rem;
  font-weight: 700;
  color: var(--text-primary);
  margin: 36px 0 16px 0;
  display: flex;
  align-items: center;
  gap: 10px;
}

.aux-page-content h3 {
  font-size: 1.2rem;
  font-weight: 600;
  color: var(--cyan-300);
  margin: 24px 0 12px 0;
}

.aux-page-content p {
  font-size: 1rem;
  color: var(--text-secondary);
  line-height: 1.8;
  margin-bottom: 18px;
}

.aux-page-content ul {
  list-style: disc;
  margin: 0 0 20px 24px;
  color: var(--text-secondary);
  line-height: 1.8;
}

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

.breadcrumb-nav {
  padding: 16px 0;
  font-size: 0.875rem;
  color: var(--text-muted);
  display: flex;
  align-items: center;
  gap: 8px;
}

.breadcrumb-nav a {
  color: var(--text-secondary);
}

.breadcrumb-nav a:hover {
  color: var(--cyan-300);
}

/* ===================================================================
   Responsive Mobile Media Queries
   =================================================================== */
@media (max-width: 1024px) {
  .hero-grid {
    grid-template-columns: 1fr;
    text-align: center;
    gap: 40px;
  }

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

  .hero-cta-group {
    justify-content: center;
  }

  .cards-grid-3,
  .pricing-grid {
    grid-template-columns: 1fr;
  }

  .media-ai-card {
    grid-template-columns: 1fr;
  }

  .download-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .why-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 768px) {
  .nav-links,
  .nav-actions {
    display: none;
  }

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

  .hero-title {
    font-size: 2.25rem;
  }

  .section-title {
    font-size: 1.85rem;
  }

  .download-grid,
  .why-grid {
    grid-template-columns: 1fr;
  }

  .footer-top,
  .footer-bottom {
    flex-direction: column;
    align-items: flex-start;
  }

  .footer-links-four {
    flex-direction: column;
    align-items: flex-start;
    gap: 16px;
  }
}

/* ===================================================================
   Article Hub & Long-Form Article Styles
   =================================================================== */
.articles-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
  margin: 48px 0 80px 0;
}

.article-card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 32px 28px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}

.article-card:hover {
  transform: translateY(-6px);
  border-color: var(--border-focus);
  background: var(--bg-card-hover);
  box-shadow: 0 16px 40px rgba(0, 0, 0, 0.35);
}

.article-card-header {
  margin-bottom: 16px;
}

.article-card-tag {
  display: inline-block;
  padding: 4px 12px;
  background: rgba(56, 189, 248, 0.1);
  border: 1px solid rgba(56, 189, 248, 0.25);
  border-radius: var(--radius-full);
  color: var(--cyan-400);
  font-size: 0.8125rem;
  font-weight: 600;
  margin-bottom: 14px;
}

.article-card-title {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--text-primary);
  line-height: 1.45;
  margin-bottom: 12px;
  transition: var(--transition);
}

.article-card:hover .article-card-title {
  color: var(--cyan-300);
}

.article-card-desc {
  font-size: 0.925rem;
  color: var(--text-secondary);
  line-height: 1.7;
  margin-bottom: 24px;
  flex-grow: 1;
}

.article-card-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 18px;
  border-top: 1px solid rgba(255, 255, 255, 0.06);
  font-size: 0.8125rem;
  color: var(--text-muted);
}

.read-more-link {
  color: var(--cyan-400);
  font-weight: 600;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  transition: var(--transition);
}

.article-card:hover .read-more-link {
  color: var(--cyan-300);
  transform: translateX(4px);
}

/* Article Detail Page Layout */
.article-detail-wrap {
  max-width: 880px;
  margin: 0 auto;
  padding: 40px 0 100px 0;
}

.article-header {
  margin-bottom: 40px;
  padding-bottom: 32px;
  border-bottom: 1px solid var(--border-subtle);
}

.article-meta-bar {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-top: 20px;
  font-size: 0.875rem;
  color: var(--text-muted);
  flex-wrap: wrap;
}

.author-pill {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--text-primary);
  font-weight: 600;
}

.author-avatar-sm {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--cyan-400) 0%, var(--blue-600) 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.75rem;
  color: #fff;
  font-weight: 700;
}

/* Table of Contents (TOC) */
.article-toc {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-left: 4px solid var(--cyan-400);
  border-radius: var(--radius-md);
  padding: 24px 28px;
  margin-bottom: 48px;
}

.toc-title {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 14px;
  display: flex;
  align-items: center;
  gap: 8px;
}

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

.toc-list li a {
  color: var(--text-secondary);
  font-size: 0.95rem;
  transition: var(--transition);
}

.toc-list li a:hover {
  color: var(--cyan-300);
  padding-left: 4px;
}

.toc-list .toc-sub {
  margin-left: 20px;
  font-size: 0.88rem;
  color: var(--text-muted);
}

/* Long-Form Prose Content */
.article-body {
  font-size: 1.0625rem;
  line-height: 1.88;
  color: #cbd5e1;
}

.article-body h2 {
  font-size: 1.65rem;
  font-weight: 800;
  color: var(--text-primary);
  margin: 48px 0 20px 0;
  padding-bottom: 12px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  display: flex;
  align-items: center;
  gap: 10px;
}

.article-body h3 {
  font-size: 1.3rem;
  font-weight: 700;
  color: var(--cyan-300);
  margin: 32px 0 16px 0;
}

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

.article-body ul, 
.article-body ol {
  margin: 0 0 24px 28px;
  color: #cbd5e1;
}

.article-body li {
  margin-bottom: 10px;
  line-height: 1.8;
}

.article-body strong {
  color: #ffffff;
  font-weight: 700;
}

.article-body a {
  color: var(--cyan-400);
  text-decoration: underline;
  text-underline-offset: 4px;
}

.article-body a:hover {
  color: var(--cyan-300);
}

/* Callout Box */
.callout-box {
  background: rgba(14, 165, 233, 0.08);
  border: 1px solid rgba(56, 189, 248, 0.25);
  border-radius: var(--radius-md);
  padding: 22px 26px;
  margin: 32px 0;
  display: flex;
  gap: 16px;
  align-items: flex-start;
}

.callout-box.tip {
  background: rgba(16, 185, 129, 0.08);
  border-color: rgba(16, 185, 129, 0.25);
}

.callout-icon {
  font-size: 1.5rem;
  line-height: 1;
  flex-shrink: 0;
}

.callout-content {
  font-size: 0.975rem;
  line-height: 1.75;
  color: #e2e8f0;
}

/* Comparison Tables */
.table-responsive {
  width: 100%;
  overflow-x: auto;
  margin: 36px 0;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-subtle);
}

.prose-table {
  width: 100%;
  border-collapse: collapse;
  text-align: left;
  font-size: 0.9375rem;
}

.prose-table th {
  background: var(--bg-surface);
  color: var(--text-primary);
  font-weight: 700;
  padding: 16px 20px;
  border-bottom: 1px solid var(--border-subtle);
  white-space: nowrap;
}

.prose-table td {
  padding: 16px 20px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
  color: var(--text-secondary);
}

.prose-table tr:hover td {
  background: rgba(255, 255, 255, 0.02);
}

/* In-Content CTA Box */
.in-content-cta {
  background: linear-gradient(135deg, rgba(14, 165, 233, 0.15) 0%, rgba(37, 99, 235, 0.12) 100%);
  border: 1px solid rgba(56, 189, 248, 0.35);
  border-radius: var(--radius-lg);
  padding: 36px 32px;
  text-align: center;
  margin: 48px 0;
}

.in-content-cta h3 {
  font-size: 1.5rem;
  font-weight: 800;
  color: #fff;
  margin-bottom: 12px;
}

.in-content-cta p {
  color: var(--text-secondary);
  font-size: 1rem;
  max-width: 620px;
  margin: 0 auto 24px auto;
}

/* Author Box & Bio */
.author-box {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 32px;
  margin-top: 60px;
  display: flex;
  gap: 24px;
  align-items: center;
}

.author-bio-avatar {
  width: 64px;
  height: 64px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--cyan-400) 0%, var(--blue-600) 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  color: #fff;
  font-weight: 700;
  flex-shrink: 0;
}

.author-bio-info h4,
.author-bio-info .author-bio-name {
  font-size: 1.15rem;
  font-weight: 700;
  color: #fff;
  margin-bottom: 6px;
}

.author-bio-info p {
  font-size: 0.9rem;
  color: var(--text-secondary);
  line-height: 1.6;
  margin: 0;
}

@media (max-width: 1024px) {
  .articles-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 768px) {
  .articles-grid {
    grid-template-columns: 1fr;
  }
  
  .author-box {
    flex-direction: column;
    text-align: center;
  }
}