/* ===================================================================
   V2PAW 猫爪机场 - Official Pure Native CSS3 Stylesheet
   Theme: Deep Tech Navy & Electric Blue (#070b14 / #0f172a / #2563eb / #6366f1 / #38bdf8)
   Performance: Zero External JS/CSS Frameworks, Sub-Second Load Speed
   SEO & Conversion Optimized for Mainland China Fast Access
   =================================================================== */

:root {
  /* Deep Tech Navy Palette */
  --bg-dark: #070b14;
  --bg-surface: #0d1527;
  --bg-card: #131d35;
  --bg-card-hover: #182544;
  --bg-card-glass: rgba(19, 29, 53, 0.78);

  --border-subtle: rgba(255, 255, 255, 0.08);
  --border-light: rgba(56, 189, 248, 0.22);
  --border-blue: rgba(37, 99, 235, 0.35);
  --border-focus: rgba(56, 189, 248, 0.65);

  /* Electric Blue & Indigo Core */
  --blue-300: #93c5fd;
  --blue-400: #60a5fa;
  --blue-500: #3b82f6;
  --blue-600: #2563eb;
  --blue-700: #1d4ed8;
  --blue-glow: rgba(37, 99, 235, 0.4);
  --blue-glow-strong: rgba(37, 99, 235, 0.65);

  --indigo-400: #818cf8;
  --indigo-500: #6366f1;
  --indigo-600: #4f46e5;
  --indigo-glow: rgba(99, 102, 241, 0.35);

  /* Cyber Cyan Accents */
  --cyan-300: #7dd3fc;
  --cyan-400: #38bdf8;
  --cyan-500: #0ea5e9;
  --cyan-600: #0284c7;
  --cyan-glow: rgba(56, 189, 248, 0.35);

  /* Typography Colors */
  --text-white: #ffffff;
  --text-silver: #f8fafc;
  --text-primary: #e2e8f0;
  --text-secondary: #94a3b8;
  --text-muted: #64748b;

  /* Status Badges */
  --amber-400: #fbbf24;
  --amber-500: #f59e0b;
  --amber-glow: rgba(245, 158, 11, 0.25);
  --emerald-400: #34d399;
  --emerald-500: #10b981;
  --emerald-glow: rgba(16, 185, 129, 0.25);

  /* Typography Stack - System Native for instant render in China */
  --font-base: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "WenQuanYi Micro Hei", sans-serif;
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 22px;
  --radius-full: 9999px;
  --transition: all 0.25s cubic-bezier(0.16, 1, 0.3, 1);
}

/* Base Reset & Box Sizing */
*, *::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: 1.68;
  background-color: var(--bg-dark);
  color: var(--text-primary);
  overflow-x: hidden;
  position: relative;
}

/* Ambient Cyber Grid & Glow Background */
body::before {
  content: "";
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-image:
    radial-gradient(circle at 50% 0%, rgba(37, 99, 235, 0.16) 0%, transparent 60%),
    radial-gradient(circle at 85% 25%, rgba(56, 189, 248, 0.10) 0%, transparent 50%),
    radial-gradient(circle at 15% 75%, rgba(99, 102, 241, 0.10) 0%, transparent 55%),
    linear-gradient(rgba(255, 255, 255, 0.02) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.02) 1px, transparent 1px);
  background-size: 100% 100%, 100% 100%, 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;
}

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

section {
  padding: 86px 0;
  position: relative;
  z-index: 1;
}

.section-header {
  text-align: center;
  max-width: 820px;
  margin: 0 auto 54px auto;
}

.section-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(37, 99, 235, 0.14);
  border: 1px solid rgba(56, 189, 248, 0.35);
  color: var(--cyan-400);
  padding: 6px 16px;
  border-radius: var(--radius-full);
  font-size: 0.85rem;
  font-weight: 700;
  letter-spacing: 0.6px;
  margin-bottom: 18px;
  text-transform: uppercase;
}

.section-title {
  font-size: 2.35rem;
  font-weight: 800;
  color: var(--text-white);
  line-height: 1.28;
  margin-bottom: 16px;
  letter-spacing: -0.5px;
}

.section-subtitle {
  font-size: 1.05rem;
  color: var(--text-secondary);
  line-height: 1.7;
}

.highlight-gradient {
  background: linear-gradient(135deg, #38bdf8 0%, #3b82f6 50%, #818cf8 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

/* ===================================================================
   Buttons & Interactive CTA Components (Distinct, High-Affordance)
   =================================================================== */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 14px 30px;
  min-height: 48px;
  border-radius: var(--radius-md);
  font-size: 0.98rem;
  font-weight: 700;
  cursor: pointer;
  transition: all 0.25s cubic-bezier(0.16, 1, 0.3, 1);
  border: 1.5px solid transparent;
  white-space: nowrap;
  letter-spacing: 0.3px;
  position: relative;
  user-select: none;
  text-shadow: 0 1px 2px rgba(0, 0, 0, 0.3);
}

.btn:active {
  transform: translateY(1px) scale(0.98);
}

.btn:focus-visible {
  outline: 2px solid var(--cyan-400);
  outline-offset: 3px;
}

/* Primary Button: Distinct Glowing Electric Blue Gradient with 3D Depth */
.btn-primary {
  background: linear-gradient(135deg, #2563eb 0%, #1d4ed8 50%, #4f46e5 100%);
  color: var(--text-white);
  border: 1.5px solid rgba(56, 189, 248, 0.45);
  box-shadow: 
    0 4px 18px rgba(37, 99, 235, 0.45),
    0 1px 3px rgba(0, 0, 0, 0.4),
    inset 0 1px 1px rgba(255, 255, 255, 0.45);
  overflow: hidden;
}

.btn-primary::after {
  content: "";
  position: absolute;
  top: 0;
  left: -120%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.35), transparent);
  transition: 0.6s ease;
}

.btn-primary:hover {
  transform: translateY(-3px);
  background: linear-gradient(135deg, #3b82f6 0%, #2563eb 50%, #6366f1 100%);
  border-color: rgba(56, 189, 248, 0.8);
  box-shadow: 
    0 8px 32px rgba(37, 99, 235, 0.65),
    0 2px 6px rgba(0, 0, 0, 0.5),
    inset 0 1px 2px rgba(255, 255, 255, 0.6);
}

.btn-primary:hover::after {
  left: 120%;
}

/* Secondary Button: Distinct Dark Glassmorphic with Illuminated Blue Border */
.btn-secondary {
  background: linear-gradient(180deg, rgba(26, 38, 66, 0.85) 0%, rgba(15, 24, 45, 0.95) 100%);
  border: 1.5px solid rgba(56, 189, 248, 0.45);
  color: var(--text-white);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  box-shadow: 
    0 4px 14px rgba(0, 0, 0, 0.4),
    inset 0 1px 0 rgba(255, 255, 255, 0.15);
}

.btn-secondary:hover {
  transform: translateY(-3px);
  background: linear-gradient(180deg, rgba(37, 54, 94, 0.95) 0%, rgba(20, 32, 60, 0.98) 100%);
  border-color: var(--cyan-400);
  color: var(--cyan-300);
  box-shadow: 
    0 8px 24px rgba(56, 189, 248, 0.3),
    0 2px 5px rgba(0, 0, 0, 0.4);
}

/* Outline Glowing Button */
.btn-outline-glow {
  background: rgba(37, 99, 235, 0.12);
  border: 1.5px solid rgba(56, 189, 248, 0.4);
  color: var(--cyan-400);
}

.btn-outline-glow:hover {
  background: rgba(37, 99, 235, 0.28);
  border-color: var(--cyan-400);
  color: var(--text-white);
  box-shadow: 0 0 20px rgba(56, 189, 248, 0.35);
  transform: translateY(-2px);
}

/* Button Sizes */
.btn-sm {
  padding: 8px 18px;
  font-size: 0.875rem;
  border-radius: var(--radius-sm);
  min-height: 40px;
}

.btn-lg {
  padding: 16px 36px;
  font-size: 1.08rem;
  border-radius: var(--radius-md);
  min-height: 54px;
}

.btn-full {
  width: 100%;
}

/* ===================================================================
   Navbar: Transparent Sticky Header with Clear Divider Border
   =================================================================== */

.navbar {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 76px;
  display: flex;
  align-items: center;
  z-index: 1000;
  transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
  background: rgba(7, 11, 20, 0.65);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  /* Clear border between top sticky nav and body */
  border-bottom: 1px solid rgba(56, 189, 248, 0.2);
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.4);
}

.navbar.scrolled {
  background: rgba(7, 11, 20, 0.94);
  height: 70px;
  border-bottom: 1px solid rgba(56, 189, 248, 0.35);
  box-shadow: 0 8px 30px rgba(0, 0, 0, 0.7), 0 1px 0 rgba(255, 255, 255, 0.08);
}

.nav-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
}

/* Clickable Brand Logo in Navbar */
.brand-link {
  display: inline-flex;
  align-items: center;
  text-decoration: none;
  cursor: pointer;
  outline: none;
  transition: var(--transition);
}

.brand-link:hover {
  opacity: 0.92;
  transform: translateY(-1px);
}

.brand-link img,
.brand-link svg {
  height: 42px;
  width: auto;
  display: block;
}

/* Nav Links Menu */
.nav-menu {
  display: flex;
  align-items: center;
  gap: 28px;
  list-style: none;
}

.nav-item a {
  font-size: 0.93rem;
  font-weight: 600;
  color: var(--text-secondary);
  position: relative;
  padding: 6px 0;
}

.nav-item a:hover {
  color: var(--cyan-400);
}

.nav-item a::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--cyan-400), var(--blue-500));
  transition: width 0.25s ease;
  border-radius: var(--radius-full);
}

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

/* Navbar Right CTAs */
.nav-actions {
  display: flex;
  align-items: center;
  gap: 14px;
}

.nav-login {
  color: var(--text-primary);
  font-size: 0.93rem;
  font-weight: 600;
  padding: 8px 16px;
  border-radius: var(--radius-sm);
  transition: var(--transition);
}

.nav-login:hover {
  color: var(--cyan-400);
  background: rgba(255, 255, 255, 0.05);
}

/* Mobile Hamburger Toggle */
.hamburger-btn {
  display: none;
  background: none;
  border: 1px solid var(--border-light);
  color: var(--text-white);
  padding: 8px;
  border-radius: var(--radius-sm);
  cursor: pointer;
  width: 44px;
  height: 44px;
  align-items: center;
  justify-content: center;
  transition: var(--transition);
}

.hamburger-btn:hover {
  background: rgba(56, 189, 248, 0.15);
  border-color: var(--cyan-400);
}

/* Mobile Drawer Menu */
.mobile-drawer {
  display: none;
  position: fixed;
  top: 76px;
  left: 0;
  width: 100%;
  background: rgba(10, 16, 30, 0.98);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border-light);
  padding: 24px;
  z-index: 999;
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.8);
  flex-direction: column;
  gap: 16px;
  transition: all 0.3s ease;
}

.mobile-drawer.active {
  display: flex;
}

.mobile-nav-links {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.mobile-nav-links li a {
  display: block;
  padding: 12px 16px;
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--text-primary);
  border-radius: var(--radius-sm);
  background: rgba(255, 255, 255, 0.03);
}

.mobile-nav-links li a:hover {
  background: rgba(37, 99, 235, 0.2);
  color: var(--cyan-400);
}

.mobile-actions {
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin-top: 10px;
}

/* ===================================================================
   Hero Section: Top Visual Banner
   =================================================================== */

.hero-section {
  padding-top: 150px;
  padding-bottom: 90px;
  position: relative;
  overflow: hidden;
}

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

.hero-content {
  position: relative;
  z-index: 2;
}

/* Promo Badge */
.promo-badge {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  background: linear-gradient(135deg, rgba(37, 99, 235, 0.25) 0%, rgba(56, 189, 248, 0.15) 100%);
  border: 1.5px solid var(--cyan-400);
  border-radius: var(--radius-full);
  padding: 6px 18px;
  margin-bottom: 24px;
  box-shadow: 0 0 20px rgba(56, 189, 248, 0.25);
  animation: badgePulse 3s ease-in-out infinite;
}

@keyframes badgePulse {
  0%, 100% { box-shadow: 0 0 15px rgba(56, 189, 248, 0.2); }
  50% { box-shadow: 0 0 26px rgba(56, 189, 248, 0.45); }
}

.promo-tag {
  background: linear-gradient(135deg, #0ea5e9, #2563eb);
  color: #ffffff;
  font-size: 0.75rem;
  font-weight: 800;
  padding: 2px 8px;
  border-radius: var(--radius-full);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.promo-text {
  color: var(--text-white);
  font-size: 0.9rem;
  font-weight: 700;
}

.hero-title {
  font-size: 3rem;
  font-weight: 900;
  color: var(--text-white);
  line-height: 1.22;
  margin-bottom: 20px;
  letter-spacing: -1px;
}

.hero-subtitle {
  font-size: 1.15rem;
  color: var(--text-secondary);
  line-height: 1.75;
  margin-bottom: 34px;
  max-width: 600px;
}

.hero-ctas {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-bottom: 38px;
  flex-wrap: wrap;
}

.hero-trust-bar {
  display: flex;
  align-items: center;
  gap: 24px;
  flex-wrap: wrap;
  padding-top: 24px;
  border-top: 1px solid var(--border-subtle);
}

.trust-item {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--text-secondary);
}

.trust-item svg {
  color: var(--cyan-400);
  flex-shrink: 0;
}

.hero-visual {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
}

.hero-visual img,
.hero-visual svg {
  width: 100%;
  max-width: 520px;
  height: auto;
  display: block;
  filter: drop-shadow(0 20px 40px rgba(0, 0, 0, 0.7));
}

/* ===================================================================
   Dynamic Cards Section: 3-Col Advantage + Streaming/AI Support
   =================================================================== */

.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
  margin-bottom: 36px;
}

.feature-card {
  background: var(--bg-card);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-lg);
  padding: 36px 28px;
  position: relative;
  transition: var(--transition);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.35);
  display: flex;
  flex-direction: column;
}

.feature-card:hover {
  transform: translateY(-6px);
  border-color: var(--cyan-400);
  background: var(--bg-card-hover);
  box-shadow: 0 20px 45px rgba(37, 99, 235, 0.25), 0 0 20px rgba(56, 189, 248, 0.15);
}

.feature-icon-wrapper {
  width: 60px;
  height: 60px;
  border-radius: 16px;
  background: linear-gradient(135deg, rgba(37, 99, 235, 0.25) 0%, rgba(56, 189, 248, 0.12) 100%);
  border: 1px solid rgba(56, 189, 248, 0.35);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 22px;
  color: var(--cyan-400);
}

.feature-title {
  font-size: 1.32rem;
  font-weight: 700;
  color: var(--text-white);
  margin-bottom: 12px;
}

.feature-desc {
  font-size: 0.95rem;
  color: var(--text-secondary);
  line-height: 1.68;
}

/* Streaming & AI Support Feature Card (Full Width Span) */
.media-ai-card {
  background: linear-gradient(135deg, rgba(19, 29, 53, 0.95) 0%, rgba(13, 21, 39, 0.95) 100%);
  border: 1.5px solid rgba(56, 189, 248, 0.35);
  border-radius: var(--radius-lg);
  padding: 40px;
  position: relative;
  overflow: hidden;
  box-shadow: 0 15px 40px rgba(0, 0, 0, 0.45);
}

.media-ai-card::before {
  content: "";
  position: absolute;
  top: 0;
  right: 0;
  width: 320px;
  height: 320px;
  background: radial-gradient(circle, rgba(56, 189, 248, 0.15) 0%, transparent 70%);
  pointer-events: none;
}

.media-ai-grid {
  display: grid;
  grid-template-columns: 1fr 1.25fr;
  align-items: center;
  gap: 36px;
}

.media-ai-info h3 {
  font-size: 1.65rem;
  font-weight: 800;
  color: var(--text-white);
  margin-bottom: 14px;
}

.media-ai-info p {
  font-size: 1rem;
  color: var(--text-secondary);
  line-height: 1.7;
  margin-bottom: 24px;
}

.tag-cloud {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.service-tag {
  background: rgba(37, 99, 235, 0.15);
  border: 1px solid rgba(56, 189, 248, 0.25);
  color: var(--text-silver);
  padding: 8px 16px;
  border-radius: var(--radius-full);
  font-size: 0.88rem;
  font-weight: 600;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  transition: var(--transition);
}

.service-tag:hover {
  background: rgba(37, 99, 235, 0.3);
  border-color: var(--cyan-400);
  color: var(--cyan-300);
  transform: translateY(-2px);
}

/* ===================================================================
   Pricing Section: 3-Col Subscription Grid
   =================================================================== */

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

.pricing-card {
  background: var(--bg-card);
  border: 1.5px solid var(--border-light);
  border-radius: var(--radius-lg);
  padding: 40px 32px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  position: relative;
  transition: var(--transition);
  box-shadow: 0 12px 35px rgba(0, 0, 0, 0.4);
}

.pricing-card:hover {
  transform: translateY(-6px);
  border-color: var(--cyan-400);
  box-shadow: 0 20px 50px rgba(37, 99, 235, 0.25);
}

/* Recommended Featured Plan */
.pricing-card.featured {
  background: linear-gradient(180deg, rgba(24, 37, 68, 0.95) 0%, rgba(15, 24, 45, 0.95) 100%);
  border: 2px solid var(--cyan-400);
  box-shadow: 0 15px 45px rgba(37, 99, 235, 0.4), 0 0 30px rgba(56, 189, 248, 0.2);
  transform: scale(1.03);
  z-index: 2;
}

.pricing-card.featured:hover {
  transform: scale(1.03) translateY(-6px);
}

.popular-badge {
  position: absolute;
  top: -14px;
  left: 50%;
  transform: translateX(-50%);
  background: linear-gradient(135deg, #0284c7, #2563eb);
  color: #ffffff;
  padding: 4px 18px;
  border-radius: var(--radius-full);
  font-size: 0.8rem;
  font-weight: 800;
  letter-spacing: 0.8px;
  box-shadow: 0 4px 15px rgba(37, 99, 235, 0.5);
  text-transform: uppercase;
}

.plan-header {
  margin-bottom: 28px;
  padding-bottom: 24px;
  border-bottom: 1px solid var(--border-subtle);
}

.plan-tier {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 12px;
  font-size: 1.25rem;
  font-weight: 800;
  color: var(--text-white);
}

.plan-pill {
  font-size: 0.75rem;
  font-weight: 700;
  padding: 3px 10px;
  border-radius: var(--radius-full);
  background: rgba(56, 189, 248, 0.15);
  color: var(--cyan-400);
  border: 1px solid rgba(56, 189, 248, 0.3);
}

.plan-price {
  display: flex;
  align-items: baseline;
  gap: 4px;
  margin-bottom: 8px;
}

.currency {
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--cyan-400);
}

.amount {
  font-size: 3.2rem;
  font-weight: 900;
  color: var(--text-white);
  line-height: 1;
}

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

.plan-subtext {
  font-size: 0.9rem;
  color: var(--text-secondary);
  line-height: 1.5;
}

.plan-features {
  list-style: none;
  margin-bottom: 32px;
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.plan-features li {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  font-size: 0.95rem;
  color: var(--text-primary);
  line-height: 1.5;
}

.plan-features li svg {
  color: var(--cyan-400);
  flex-shrink: 0;
  margin-top: 3px;
}

/* ===================================================================
   Supported Platforms & Download Section
   =================================================================== */

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

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

.platform-card:hover {
  transform: translateY(-6px);
  border-color: var(--cyan-400);
  background: var(--bg-card-hover);
  box-shadow: 0 16px 36px rgba(37, 99, 235, 0.25);
}

.platform-icon {
  width: 64px;
  height: 64px;
  border-radius: 18px;
  background: linear-gradient(135deg, rgba(37, 99, 235, 0.25) 0%, rgba(56, 189, 248, 0.12) 100%);
  border: 1px solid rgba(56, 189, 248, 0.35);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 18px;
  color: var(--cyan-400);
}

.platform-name {
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--text-white);
  margin-bottom: 8px;
}

.platform-apps {
  font-size: 0.88rem;
  color: var(--text-secondary);
  line-height: 1.6;
  margin-bottom: 20px;
  flex-grow: 1;
}

/* ===================================================================
   Why Choose Section: Deep SEO/GEO/SERP Features
   =================================================================== */

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

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

.why-card:hover {
  border-color: var(--cyan-400);
  background: var(--bg-card-hover);
  transform: translateY(-4px);
  box-shadow: 0 12px 30px rgba(0, 0, 0, 0.4);
}

.why-emoji {
  font-size: 2.2rem;
  margin-bottom: 14px;
  display: inline-block;
}

.why-title {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--text-white);
  margin-bottom: 10px;
}

.why-desc {
  font-size: 0.92rem;
  color: var(--text-secondary);
  line-height: 1.65;
}

/* ===================================================================
   Testimonials Marquee Section: Seamless Infinite Auto-Scroll
   =================================================================== */

.testimonials-section {
  overflow: hidden;
  position: relative;
  padding: 86px 0 60px 0;
}

.marquee-container {
  width: 100%;
  overflow: hidden;
  position: relative;
  padding: 20px 0;
  mask-image: linear-gradient(to right, transparent, black 10%, black 90%, transparent);
  -webkit-mask-image: linear-gradient(to right, transparent, black 10%, black 90%, transparent);
}

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

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

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

.testimonial-card {
  background: var(--bg-card);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-md);
  padding: 26px 24px;
  width: 360px;
  flex-shrink: 0;
  box-shadow: 0 8px 25px rgba(0, 0, 0, 0.35);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  gap: 16px;
  transition: var(--transition);
}

.testimonial-card:hover {
  border-color: var(--cyan-400);
  background: var(--bg-card-hover);
  transform: translateY(-3px);
}

.review-stars {
  color: #fbbf24;
  font-size: 1rem;
  letter-spacing: 2px;
  margin-bottom: 8px;
}

.review-text {
  font-size: 0.92rem;
  color: var(--text-primary);
  line-height: 1.65;
}

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

.user-avatar {
  width: 42px;
  height: 42px;
  border-radius: 50%;
  background: linear-gradient(135deg, #2563eb, #6366f1);
  color: #ffffff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 0.9rem;
  border: 1px solid rgba(255, 255, 255, 0.2);
}

.user-name {
  font-weight: 700;
  color: var(--text-white);
  font-size: 0.93rem;
}

.user-role {
  font-size: 0.8rem;
  color: var(--text-muted);
}

/* ===================================================================
   FAQ Section: Native HTML5 <details> & <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-light);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: var(--transition);
}

.faq-item:hover {
  border-color: var(--cyan-400);
}

.faq-item[open] {
  border-color: var(--cyan-400);
  background: var(--bg-card-hover);
}

.faq-item summary {
  padding: 22px 26px;
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--text-white);
  cursor: pointer;
  list-style: none;
  display: flex;
  align-items: center;
  justify-content: space-between;
  user-select: none;
}

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

.faq-arrow {
  color: var(--cyan-400);
  font-size: 0.85rem;
  transition: transform 0.3s ease;
}

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

.faq-content {
  padding: 0 26px 24px 26px;
  color: var(--text-secondary);
  font-size: 0.95rem;
  line-height: 1.75;
  border-top: 1px solid var(--border-subtle);
  padding-top: 18px;
}

/* ===================================================================
   Secondary Exit CTA Section
   =================================================================== */

.cta-section {
  padding: 70px 0;
}

.cta-banner {
  background: linear-gradient(135deg, rgba(37, 99, 235, 0.22) 0%, rgba(99, 102, 241, 0.22) 50%, rgba(56, 189, 248, 0.15) 100%);
  border: 1.5px solid var(--cyan-400);
  border-radius: var(--radius-lg);
  padding: 56px 40px;
  text-align: center;
  position: relative;
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.5), 0 0 30px rgba(37, 99, 235, 0.25);
}

.cta-banner h2 {
  font-size: 2.35rem;
  font-weight: 900;
  color: var(--text-white);
  margin-bottom: 16px;
}

.cta-banner p {
  font-size: 1.08rem;
  color: var(--text-secondary);
  max-width: 680px;
  margin: 0 auto 34px auto;
  line-height: 1.7;
}

.cta-buttons {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 20px;
  flex-wrap: wrap;
}

/* ===================================================================
   Minimalist 4-Item Footer (Strictly Isolated Separate Pages)
   =================================================================== */

.site-footer {
  padding: 48px 0;
  background: #05080f;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
}

.footer-container {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 24px;
  text-align: center;
}

.footer-nav {
  display: flex;
  align-items: center;
  gap: 36px;
  list-style: none;
  flex-wrap: wrap;
  justify-content: center;
}

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

.footer-nav li a:hover {
  color: var(--cyan-400);
}

.footer-copyright {
  font-size: 0.88rem;
  color: var(--text-muted);
}

/* ===================================================================
   Fade In & Scroll Reveal Effects
   =================================================================== */

.fade-in {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.65s cubic-bezier(0.16, 1, 0.3, 1), transform 0.65s cubic-bezier(0.16, 1, 0.3, 1);
  will-change: opacity, transform;
}

.fade-in.is-visible {
  opacity: 1;
  transform: translateY(0);
}

/* ===================================================================
   Responsive Mobile Queries (@media)
   =================================================================== */

@media (max-width: 1024px) {
  .hero-grid {
    grid-template-columns: 1fr;
    text-align: center;
    gap: 40px;
  }

  .hero-subtitle {
    margin-left: auto;
    margin-right: auto;
  }

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

  .hero-trust-bar {
    justify-content: center;
  }

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

  .media-ai-grid {
    grid-template-columns: 1fr;
    text-align: center;
  }

  .tag-cloud {
    justify-content: center;
  }

  .pricing-grid {
    grid-template-columns: 1fr;
    max-width: 480px;
    margin: 0 auto;
  }

  .pricing-card.featured {
    transform: none;
  }

  .pricing-card.featured:hover {
    transform: translateY(-6px);
  }

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

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

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

  .hamburger-btn {
    display: flex;
  }

  .hero-title {
    font-size: 2.2rem;
  }

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

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

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

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

  .footer-nav {
    gap: 20px;
  }

  .btn {
    width: 100%;
  }

  .hero-ctas {
    flex-direction: column;
    width: 100%;
  }

  .cta-buttons {
    flex-direction: column;
    width: 100%;
  }
}


/* ===================================================================
   Article & Legal Content Pages Layout Styles
   =================================================================== */

.page-header {
  padding-top: 130px;
  padding-bottom: 80px;
  position: relative;
}

.article-container {
  max-width: 900px;
  margin: 0 auto;
}

.breadcrumbs {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 0.9rem;
  color: var(--text-muted);
  margin-bottom: 28px;
}

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

.breadcrumbs a:hover {
  color: var(--cyan-400);
}

.breadcrumbs .separator {
  color: var(--text-muted);
}

.article-content {
  background: var(--bg-card);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-lg);
  padding: 48px;
  color: var(--text-primary);
  line-height: 1.85;
  box-shadow: 0 12px 35px rgba(0, 0, 0, 0.4);
}

.article-content h1 {
  font-size: 2.25rem;
  font-weight: 800;
  color: #ffffff;
  margin-bottom: 24px;
  line-height: 1.3;
}

.article-content h2 {
  font-size: 1.6rem;
  font-weight: 800;
  color: var(--text-white);
  margin: 38px 0 16px 0;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--border-subtle);
}

.article-content h3 {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--blue-400);
  margin: 28px 0 12px 0;
}

.article-content p {
  margin-bottom: 20px;
  font-size: 1rem;
  color: var(--text-secondary);
}

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

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

.article-content strong {
  color: var(--text-silver);
}

.article-content blockquote {
  border-left: 4px solid var(--blue-500);
  background: rgba(37, 99, 235, 0.1);
  padding: 16px 20px;
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  margin: 24px 0;
  color: var(--text-silver);
  font-style: italic;
}

.article-content code {
  background: rgba(7, 11, 20, 0.85);
  padding: 2px 6px;
  border-radius: 4px;
  color: var(--cyan-400);
  font-size: 0.9em;
  border: 1px solid rgba(56, 189, 248, 0.2);
}

/* Articles Hub Grid */
.articles-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}

.article-card {
  background: var(--bg-card);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-md);
  padding: 30px 26px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  transition: var(--transition);
  text-decoration: none;
  box-shadow: 0 10px 25px rgba(0, 0, 0, 0.35);
}

.article-card:hover {
  transform: translateY(-5px);
  border-color: var(--cyan-400);
  background: var(--bg-card-hover);
  box-shadow: 0 16px 36px rgba(37, 99, 235, 0.25);
}

.article-badge {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 700;
  padding: 3px 10px;
  border-radius: var(--radius-full);
  background: rgba(37, 99, 235, 0.2);
  color: var(--cyan-400);
  margin-bottom: 14px;
  width: fit-content;
}

.article-card h2,
.article-card h3 {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--text-white);
  margin-bottom: 12px;
  line-height: 1.45;
}

.article-excerpt {
  font-size: 0.92rem;
  color: var(--text-secondary);
  line-height: 1.65;
  margin-bottom: 20px;
  flex-grow: 1;
}

.article-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 0.82rem;
  color: var(--text-muted);
  border-top: 1px solid var(--border-subtle);
  padding-top: 14px;
}

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

@media (max-width: 768px) {
  .articles-grid {
    grid-template-columns: 1fr;
  }
  .article-content {
    padding: 24px 18px;
  }
}


/* Table of Contents Box for Long-Form SEO Articles */
.toc-box {
  background: rgba(13, 21, 39, 0.85);
  border: 1px solid var(--border-light);
  border-left: 4px solid var(--cyan-400);
  border-radius: var(--radius-sm);
  padding: 22px 28px;
  margin: 28px 0 36px 0;
}

.toc-title {
  font-size: 1.15rem;
  font-weight: 800;
  color: var(--text-white);
  margin-bottom: 14px;
  display: flex;
  align-items: center;
  gap: 8px;
}

.toc-list {
  list-style: decimal;
  padding-left: 20px;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.toc-list li a {
  color: var(--text-secondary);
  font-size: 0.95rem;
  text-decoration: none;
  transition: var(--transition);
}

.toc-list li a:hover {
  color: var(--cyan-400);
  padding-left: 4px;
}

.author-byline {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 16px 0;
  margin-bottom: 24px;
  border-bottom: 1px solid var(--border-subtle);
  font-size: 0.88rem;
  color: var(--text-muted);
}

.author-avatar-sm {
  width: 38px;
  height: 38px;
  border-radius: 50%;
  background: linear-gradient(135deg, #2563eb, #6366f1);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 800;
  font-size: 0.85rem;
}

.faq-section-article {
  margin-top: 40px;
  padding-top: 24px;
  border-top: 1px solid var(--border-subtle);
}