:root {
  --font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  --font-mono: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;
  
  /* Stratospheric frictionless-daylight UI Palette */
  --bg-primary: #f7fafc;             /* Boundless sky-dome white */
  --bg-vapor: #edf2f7;               /* Subtle vapor-frost mist */
  --bg-surface: rgba(255, 255, 255, 0.88);
  --bg-surface-solid: #ffffff;
  --bg-card: #ffffff;
  --bg-tag: #f1f5f9;
  
  /* Typography Ink */
  --text-ink: #0f172a;                /* Dense midnight typographic ink */
  --text-primary: #0f172a;
  --text-secondary: #334155;
  --text-muted: #64748b;
  
  /* Stratospheric Azure Accents - Ultra-faint & Refined */
  --azure-sky: #0284c7;               /* Stratospheric azure (#0284c7) */
  --azure-sky-hover: #0369a1;
  --azure-glow: rgba(2, 132, 199, 0.12);
  --azure-faint: rgba(2, 132, 199, 0.04);
  --azure-border: rgba(2, 132, 199, 0.22);
  
  /* Hairline Silver Borders (Razor-thin 1px) */
  --border-hairline: rgba(226, 232, 240, 0.85);
  --border-light: rgba(237, 242, 247, 0.95);
  --border-color: rgba(226, 232, 240, 0.85);
  
  /* Aerodynamic Shadows & Lift */
  --shadow-idle: 0 2px 10px 0 rgba(15, 23, 42, 0.02);
  --shadow-sm: 0 1px 3px 0 rgba(15, 23, 42, 0.04);
  --shadow-md: 0 6px 16px -2px rgba(15, 23, 42, 0.05);
  --shadow-lift: 0 20px 40px -12px rgba(2, 132, 199, 0.09), 0 8px 16px -4px rgba(15, 23, 42, 0.03);
  --shadow-button: 0 4px 14px 0 rgba(2, 132, 199, 0.25);
  
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 14px;
  --radius-xl: 20px;
  --radius-full: 9999px;
  
  --transition-fast: 0.16s ease;
  --transition-lift: 0.4s cubic-bezier(0.16, 1, 0.3, 1);
  --transition-pneumatic: 0.22s cubic-bezier(0.2, 0.8, 0.2, 1);
  --header-height: 72px;
}

[data-theme="dark"] {
  /* Nocturnal Stratospheric Palette */
  --bg-primary: #060a12;
  --bg-vapor: #0b121e;
  --bg-surface: rgba(13, 20, 34, 0.85);
  --bg-surface-solid: #0d1525;
  --bg-card: #0d1525;
  --bg-tag: #141f33;
  
  --text-ink: #f8fafc;
  --text-primary: #f8fafc;
  --text-secondary: #cbd5e1;
  --text-muted: #94a3b8;
  
  --azure-sky: #38bdf8;
  --azure-sky-hover: #7dd3fc;
  --azure-glow: rgba(56, 189, 248, 0.18);
  --azure-faint: rgba(56, 189, 248, 0.06);
  --azure-border: rgba(56, 189, 248, 0.3);
  
  --border-hairline: rgba(30, 41, 59, 0.85);
  --border-light: rgba(30, 41, 59, 0.6);
  --border-color: rgba(30, 41, 59, 0.85);
  
  --shadow-idle: 0 2px 10px 0 rgba(0, 0, 0, 0.3);
  --shadow-sm: 0 1px 3px 0 rgba(0, 0, 0, 0.4);
  --shadow-md: 0 6px 16px -2px rgba(0, 0, 0, 0.45);
  --shadow-lift: 0 20px 40px -12px rgba(0, 0, 0, 0.7), 0 0 20px rgba(56, 189, 248, 0.08);
  --shadow-button: 0 4px 14px 0 rgba(56, 189, 248, 0.35);
}

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

html {
  font-family: var(--font-family);
  font-size: 16px;
  line-height: 1.6;
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--header-height) + 20px);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  background-color: var(--bg-primary);
  color: var(--text-ink);
  transition: background-color var(--transition-lift), color var(--transition-lift);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  overflow-x: hidden;
}

a {
  color: inherit;
  text-decoration: none;
}

img, svg {
  display: block;
  max-width: 100%;
}

button {
  font-family: inherit;
  border: none;
  background: none;
  cursor: pointer;
}

.container {
  width: 100%;
  max-width: 1220px;
  margin: 0 auto;
  padding: 0 28px;
}

/* Navigation Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  height: var(--header-height);
  background-color: var(--bg-surface);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
  border-bottom: 1px solid var(--border-hairline);
  transition: background-color var(--transition-lift), border-color var(--transition-lift);
}

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

.brand-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 1.25rem;
  font-weight: 800;
  letter-spacing: -0.03em;
  color: var(--text-ink);
}

.brand-icon {
  width: 34px;
  height: 34px;
  background: linear-gradient(135deg, var(--azure-sky) 0%, #0369a1 100%);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #ffffff;
  box-shadow: 0 3px 10px var(--azure-glow);
}

.nav-menu {
  display: flex;
  align-items: center;
  gap: 22px;
  list-style: none;
}

.nav-link {
  font-size: 0.9375rem;
  font-weight: 500;
  color: var(--text-secondary);
  transition: color var(--transition-fast), transform var(--transition-fast);
  padding: 6px 2px;
  position: relative;
}

.nav-link:hover,
.nav-link.active {
  color: var(--azure-sky);
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 1.5px;
  background-color: var(--azure-sky);
  transform: scaleX(0);
  transform-origin: right;
  transition: transform 0.25s ease;
}

.nav-link:hover::after,
.nav-link.active::after {
  transform: scaleX(1);
  transform-origin: left;
}

.nav-link-badge {
  display: inline-flex;
  align-items: center;
  padding: 1px 6px;
  border-radius: var(--radius-full);
  font-size: 0.6875rem;
  font-weight: 700;
  background: var(--azure-faint);
  color: var(--azure-sky);
  border: 1px solid var(--azure-border);
  margin-left: 4px;
  vertical-align: middle;
}

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

/* Theme Toggle Button - Stratospheric Minimal */
.theme-toggle-btn {
  position: relative;
  width: 38px;
  height: 38px;
  border-radius: var(--radius-full);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-secondary);
  background: rgba(148, 163, 184, 0.08);
  border: 1px solid var(--border-hairline);
  backdrop-filter: blur(8px);
  transition: background-color var(--transition-fast), border-color var(--transition-fast), transform var(--transition-fast), color var(--transition-fast);
}

.theme-toggle-btn:hover {
  background: rgba(148, 163, 184, 0.16);
  color: var(--azure-sky);
  transform: translateY(-1px);
}

.theme-icon-sun,
.theme-icon-moon {
  position: absolute;
  width: 18px;
  height: 18px;
  transition: transform 0.4s cubic-bezier(0.34, 1.56, 0.64, 1), opacity 0.3s ease;
}

.theme-icon-moon {
  opacity: 0;
  transform: rotate(-90deg) scale(0.6);
}

.theme-icon-sun {
  opacity: 1;
  transform: rotate(0deg) scale(1);
}

[data-theme="dark"] .theme-icon-sun {
  opacity: 0;
  transform: rotate(90deg) scale(0.6);
}

[data-theme="dark"] .theme-icon-moon {
  opacity: 1;
  transform: rotate(0deg) scale(1);
}

/* Pneumatic Compression Buttons */
.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 13px 28px;
  font-size: 0.9375rem;
  font-weight: 600;
  color: #ffffff;
  background-color: var(--azure-sky);
  border-radius: var(--radius-full);
  box-shadow: var(--shadow-button);
  transition: transform var(--transition-pneumatic), box-shadow var(--transition-pneumatic), background-color var(--transition-fast);
}

.btn-primary:hover {
  background-color: var(--azure-sky-hover);
  transform: translateY(-2px);
  box-shadow: 0 10px 24px -4px rgba(2, 132, 199, 0.35);
}

.btn-primary:active {
  transform: translateY(1px) scale(0.985);
  box-shadow: 0 2px 6px -1px rgba(2, 132, 199, 0.25);
}

.btn-secondary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 13px 26px;
  font-size: 0.9375rem;
  font-weight: 600;
  color: var(--text-ink);
  background-color: var(--bg-surface-solid);
  border: 1px solid var(--border-hairline);
  border-radius: var(--radius-full);
  box-shadow: var(--shadow-idle);
  transition: transform var(--transition-pneumatic), border-color var(--transition-fast), background-color var(--transition-fast), box-shadow var(--transition-fast);
}

.btn-secondary:hover {
  border-color: var(--azure-border);
  background-color: var(--bg-vapor);
  transform: translateY(-2px);
  box-shadow: var(--shadow-sm);
}

.btn-secondary:active {
  transform: translateY(1px) scale(0.985);
}

.btn-header-cta {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 8px 18px;
  font-size: 0.875rem;
  font-weight: 600;
  color: #ffffff;
  background-color: var(--azure-sky);
  border-radius: var(--radius-full);
  box-shadow: 0 2px 8px var(--azure-glow);
  transition: transform var(--transition-pneumatic), background-color var(--transition-fast), box-shadow var(--transition-fast);
}

.btn-header-cta:hover {
  background-color: var(--azure-sky-hover);
  transform: translateY(-1px);
  box-shadow: 0 4px 14px var(--azure-glow);
}

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

.mobile-menu-btn {
  display: none;
  width: 38px;
  height: 38px;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-md);
  color: var(--text-ink);
  background: rgba(148, 163, 184, 0.08);
}

/* Monospace Ping Counters - 30% Dormant, Smooth Focus */
.mono-ping {
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  letter-spacing: -0.01em;
  opacity: 0.3;
  color: var(--text-muted);
  display: inline-flex;
  align-items: center;
  gap: 6px;
  transition: opacity 0.35s cubic-bezier(0.16, 1, 0.3, 1), color 0.35s ease;
  user-select: none;
}

.mono-ping-dot {
  width: 6px;
  height: 6px;
  border-radius: var(--radius-full);
  background-color: #10b981;
}

.advantage-card:hover .mono-ping,
.showcase-card:hover .mono-ping,
.pricing-card:hover .mono-ping,
.hero-ping-pill:hover .mono-ping,
.mono-ping:hover {
  opacity: 1;
  color: var(--azure-sky);
}

/* Hero Section (Main Visual) */
.hero-section {
  position: relative;
  padding: 86px 0 68px;
  text-align: center;
  overflow: hidden;
}

.hero-subtle-glow {
  position: absolute;
  top: -160px;
  left: 50%;
  transform: translateX(-50%);
  width: 720px;
  height: 480px;
  background: radial-gradient(circle, rgba(2, 132, 199, 0.08) 0%, rgba(2, 132, 199, 0) 70%);
  pointer-events: none;
  z-index: -1;
}

.hero-ping-pill {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  padding: 6px 18px;
  border-radius: var(--radius-full);
  background: var(--bg-surface-solid);
  border: 1px solid var(--border-hairline);
  box-shadow: var(--shadow-sm);
  margin-bottom: 28px;
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.hero-ping-pill:hover {
  border-color: var(--azure-border);
  box-shadow: var(--shadow-md);
}

.hero-pill-status {
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--text-secondary);
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.hero-brand-tag {
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--azure-sky);
  background: var(--azure-faint);
  border: 1px solid var(--azure-border);
  padding: 2px 8px;
  border-radius: var(--radius-full);
  letter-spacing: 0.04em;
}

.hero-title {
  font-size: 3.25rem;
  font-weight: 900;
  line-height: 1.18;
  letter-spacing: -0.035em;
  margin-bottom: 22px;
  max-width: 960px;
  margin-left: auto;
  margin-right: auto;
  color: var(--text-ink);
}

.hero-brand-name {
  color: var(--azure-sky);
  display: inline-block;
  font-weight: 900;
}

.hero-title-highlight {
  display: inline-block;
  background: linear-gradient(135deg, var(--text-ink) 20%, var(--azure-sky) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero-subtitle {
  font-size: 1.125rem;
  color: var(--text-secondary);
  line-height: 1.75;
  max-width: 740px;
  margin: 0 auto 38px;
}

.hero-cta-group {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 16px;
  margin-bottom: 48px;
  flex-wrap: wrap;
}

.hero-spec-strip {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 36px;
  flex-wrap: wrap;
  padding-top: 26px;
  border-top: 1px solid var(--border-hairline);
  max-width: 900px;
  margin: 0 auto;
}

.spec-item {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 0.9375rem;
  color: var(--text-secondary);
  font-weight: 500;
}

.spec-icon {
  color: var(--azure-sky);
  flex-shrink: 0;
}

/* Aerodynamic Section Headers */
.section-header {
  text-align: center;
  max-width: 760px;
  margin: 0 auto 56px;
}

.section-tag {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--azure-sky);
  background: var(--azure-faint);
  border: 1px solid var(--azure-border);
  padding: 4px 14px;
  border-radius: var(--radius-full);
  margin-bottom: 14px;
}

.section-title {
  font-size: 2.25rem;
  font-weight: 800;
  line-height: 1.25;
  letter-spacing: -0.025em;
  margin-bottom: 14px;
  color: var(--text-ink);
}

.section-subtitle {
  font-size: 1.0625rem;
  color: var(--text-secondary);
  line-height: 1.65;
}

/* Core Advantages (3 Aerodynamic Composite Wing Cards) */
.advantages-section {
  padding: 76px 0;
}

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

.advantage-card {
  background: var(--bg-card);
  border: 1px solid var(--border-hairline);
  border-radius: var(--radius-xl);
  padding: 36px 30px;
  box-shadow: var(--shadow-idle);
  display: flex;
  flex-direction: column;
  transition: transform var(--transition-lift), box-shadow var(--transition-lift), border-color var(--transition-fast);
  position: relative;
}

.advantage-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-lift);
  border-color: var(--azure-border);
}

.advantage-card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 24px;
}

.advantage-icon-box {
  width: 50px;
  height: 50px;
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--azure-faint);
  color: var(--azure-sky);
  border: 1px solid var(--azure-border);
}

.advantage-title {
  font-size: 1.25rem;
  font-weight: 700;
  margin-bottom: 12px;
  color: var(--text-ink);
}

.advantage-desc {
  font-size: 0.9375rem;
  color: var(--text-secondary);
  line-height: 1.65;
  margin-bottom: 22px;
  flex-grow: 1;
}

.advantage-points {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding-top: 18px;
  border-top: 1px solid var(--border-hairline);
}

.advantage-points li {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.875rem;
  color: var(--text-secondary);
}

.advantage-points li svg {
  color: var(--azure-sky);
  flex-shrink: 0;
}

/* Showcase Section (Streaming & AI Cards) */
.showcase-section {
  padding: 40px 0 80px;
}

.showcase-dual-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 32px;
}

.showcase-card {
  background: var(--bg-card);
  border: 1px solid var(--border-hairline);
  border-radius: var(--radius-xl);
  padding: 40px;
  box-shadow: var(--shadow-idle);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  transition: transform var(--transition-lift), box-shadow var(--transition-lift), border-color var(--transition-fast);
}

.showcase-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-lift);
  border-color: var(--azure-border);
}

.showcase-card-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 18px;
}

.showcase-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 0.75rem;
  font-weight: 700;
  padding: 4px 12px;
  border-radius: var(--radius-full);
}

.showcase-badge.stream {
  background: rgba(2, 132, 199, 0.08);
  color: var(--azure-sky);
  border: 1px solid var(--azure-border);
}

.showcase-badge.ai {
  background: rgba(16, 185, 129, 0.08);
  color: #10b981;
  border: 1px solid rgba(16, 185, 129, 0.25);
}

.showcase-title {
  font-size: 1.5625rem;
  font-weight: 800;
  margin-bottom: 12px;
  color: var(--text-ink);
}

.showcase-desc {
  font-size: 0.9375rem;
  color: var(--text-secondary);
  line-height: 1.65;
  margin-bottom: 28px;
}

.service-badges-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 10px;
  margin-bottom: 28px;
}

.service-pill {
  background: var(--bg-vapor);
  border: 1px solid var(--border-hairline);
  border-radius: var(--radius-md);
  padding: 10px 8px;
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
  transition: transform var(--transition-fast), border-color var(--transition-fast), background-color var(--transition-fast);
}

.service-pill:hover {
  transform: translateY(-2px);
  border-color: var(--azure-border);
  background-color: var(--bg-surface-solid);
}

.service-pill-name {
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--text-ink);
}

.service-pill-status {
  font-size: 0.6875rem;
  color: var(--azure-sky);
  font-weight: 600;
}

.showcase-metrics {
  background: var(--bg-vapor);
  border: 1px solid var(--border-hairline);
  border-radius: var(--radius-lg);
  padding: 16px 20px;
  display: flex;
  align-items: center;
  justify-content: space-around;
}

.metric-item {
  text-align: center;
}

.metric-value {
  font-size: 1.1875rem;
  font-weight: 800;
  color: var(--azure-sky);
  font-family: var(--font-mono);
}

.metric-label {
  font-size: 0.75rem;
  color: var(--text-muted);
}

/* Pricing Section - Real JMS Packages */
.pricing-section {
  padding: 86px 0;
  background-color: var(--bg-vapor);
  border-top: 1px solid var(--border-hairline);
  border-bottom: 1px solid var(--border-hairline);
}

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

.pricing-card {
  background: var(--bg-card);
  border: 1px solid var(--border-hairline);
  border-radius: var(--radius-xl);
  padding: 34px 24px;
  display: flex;
  flex-direction: column;
  position: relative;
  box-shadow: var(--shadow-idle);
  transition: transform var(--transition-lift), box-shadow var(--transition-lift), border-color var(--transition-fast);
}

.pricing-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-lift);
  border-color: var(--azure-border);
}

.pricing-card.featured {
  border-color: var(--azure-sky);
  box-shadow: 0 12px 32px -8px rgba(2, 132, 199, 0.2);
  transform: scale(1.025);
  z-index: 2;
}

.pricing-card.featured:hover {
  transform: scale(1.03) translateY(-5px);
  box-shadow: 0 20px 42px -10px rgba(2, 132, 199, 0.3);
}

.featured-ribbon {
  position: absolute;
  top: -12px;
  left: 50%;
  transform: translateX(-50%);
  background-color: var(--azure-sky);
  color: #ffffff;
  font-size: 0.6875rem;
  font-weight: 700;
  padding: 3px 14px;
  border-radius: var(--radius-full);
  letter-spacing: 0.05em;
  box-shadow: 0 2px 8px var(--azure-glow);
  white-space: nowrap;
}

.pricing-card-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 8px;
}

.pricing-plan-name {
  font-size: 1.1875rem;
  font-weight: 800;
  color: var(--text-ink);
}

.pricing-plan-desc {
  font-size: 0.8125rem;
  color: var(--text-muted);
  margin-bottom: 20px;
  min-height: 38px;
}

.pricing-price-box {
  display: flex;
  align-items: baseline;
  margin-bottom: 20px;
}

.pricing-currency {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--text-ink);
}

.pricing-amount {
  font-size: 2.5rem;
  font-weight: 900;
  line-height: 1;
  color: var(--text-ink);
  letter-spacing: -0.02em;
}

.pricing-period {
  font-size: 0.875rem;
  color: var(--text-muted);
  margin-left: 4px;
}

.pricing-annual-tip {
  font-size: 0.75rem;
  color: var(--azure-sky);
  background: var(--azure-faint);
  border: 1px solid var(--azure-border);
  padding: 3px 8px;
  border-radius: var(--radius-sm);
  display: inline-block;
  margin-bottom: 20px;
  font-weight: 600;
}

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

.pricing-features-list li {
  display: flex;
  align-items: flex-start;
  gap: 8px;
  font-size: 0.875rem;
  color: var(--text-secondary);
  line-height: 1.4;
}

.pricing-features-list li svg {
  color: var(--azure-sky);
  flex-shrink: 0;
  margin-top: 2px;
}

.btn-pricing-cta {
  display: block;
  text-align: center;
  padding: 12px 20px;
  border-radius: var(--radius-full);
  font-size: 0.9375rem;
  font-weight: 700;
  transition: transform var(--transition-pneumatic), box-shadow var(--transition-pneumatic), background-color var(--transition-fast);
}

.pricing-card.featured .btn-pricing-cta {
  background-color: var(--azure-sky);
  color: #ffffff;
  box-shadow: var(--shadow-button);
}

.pricing-card.featured .btn-pricing-cta:hover {
  background-color: var(--azure-sky-hover);
  transform: translateY(-2px);
  box-shadow: 0 8px 22px rgba(2, 132, 199, 0.4);
}

.pricing-card:not(.featured) .btn-pricing-cta {
  background: var(--bg-vapor);
  color: var(--text-ink);
  border: 1px solid var(--border-hairline);
}

.pricing-card:not(.featured) .btn-pricing-cta:hover {
  background-color: var(--azure-sky);
  color: #ffffff;
  border-color: var(--azure-sky);
  transform: translateY(-2px);
  box-shadow: var(--shadow-button);
}

.pricing-card .btn-pricing-cta:active {
  transform: translateY(1px) scale(0.985);
}

/* Testimonials / User Reviews */
.testimonials-section {
  padding: 86px 0;
}

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

.testimonial-card {
  background: var(--bg-card);
  border: 1px solid var(--border-hairline);
  border-radius: var(--radius-xl);
  padding: 34px;
  box-shadow: var(--shadow-idle);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  transition: transform var(--transition-lift), box-shadow var(--transition-lift), border-color var(--transition-fast);
}

.testimonial-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-lift);
  border-color: var(--azure-border);
}

.testimonial-card-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 16px;
}

.star-rating {
  display: flex;
  gap: 3px;
  color: #f59e0b;
}

.testimonial-quote {
  font-size: 0.9375rem;
  color: var(--text-secondary);
  line-height: 1.7;
  margin-bottom: 24px;
}

.user-profile {
  display: flex;
  align-items: center;
  gap: 12px;
  padding-top: 18px;
  border-top: 1px solid var(--border-hairline);
}

.user-avatar-initials {
  width: 40px;
  height: 40px;
  border-radius: var(--radius-full);
  background: var(--azure-faint);
  color: var(--azure-sky);
  border: 1px solid var(--azure-border);
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.875rem;
}

.user-info-name {
  font-size: 0.9375rem;
  font-weight: 700;
  color: var(--text-ink);
}

.user-info-role {
  font-size: 0.8125rem;
  color: var(--text-muted);
}

/* FAQ Section */
.faq-section {
  padding: 86px 0;
  background-color: var(--bg-vapor);
  border-top: 1px solid var(--border-hairline);
}

.faq-accordion-list {
  max-width: 840px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.faq-item {
  border: 1px solid var(--border-hairline);
  border-radius: var(--radius-lg);
  background: var(--bg-card);
  overflow: hidden;
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.faq-item[open] {
  border-color: var(--azure-border);
  box-shadow: var(--shadow-sm);
}

.faq-summary {
  list-style: none;
  padding: 20px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  cursor: pointer;
  font-weight: 700;
  font-size: 1.0625rem;
  color: var(--text-ink);
  user-select: none;
}

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

.faq-icon-chevron {
  transition: transform 0.3s ease;
  color: var(--text-muted);
  flex-shrink: 0;
}

.faq-item[open] .faq-icon-chevron {
  transform: rotate(180deg);
  color: var(--azure-sky);
}

.faq-answer {
  padding: 0 24px 22px;
  font-size: 0.9375rem;
  color: var(--text-secondary);
  line-height: 1.75;
}

/* Bottom CTA Banner */
.bottom-cta-banner {
  padding: 72px 0;
  text-align: center;
  background: var(--bg-primary);
}

.cta-box {
  background: linear-gradient(135deg, var(--azure-sky) 0%, #0369a1 100%);
  border-radius: var(--radius-xl);
  padding: 56px 36px;
  color: #ffffff;
  box-shadow: 0 20px 40px -10px rgba(2, 132, 199, 0.3);
  max-width: 980px;
  margin: 0 auto;
  position: relative;
  overflow: hidden;
}

.cta-box-title {
  font-size: 2.25rem;
  font-weight: 900;
  margin-bottom: 14px;
  color: #ffffff;
}

.cta-box-desc {
  font-size: 1.0625rem;
  opacity: 0.92;
  max-width: 640px;
  margin: 0 auto 32px;
  line-height: 1.65;
}

.btn-cta-white {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 15px 34px;
  font-size: 1rem;
  font-weight: 700;
  color: #0369a1;
  background-color: #ffffff;
  border-radius: var(--radius-full);
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.12);
  transition: transform var(--transition-pneumatic), box-shadow var(--transition-pneumatic);
}

.btn-cta-white:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.2);
}

.btn-cta-white:active {
  transform: translateY(1px) scale(0.985);
}

/* Footer - Strictly 4 required links */
.site-footer {
  background-color: var(--bg-surface-solid);
  border-top: 1px solid var(--border-hairline);
  padding: 48px 0 36px;
  margin-top: auto;
}

.footer-nav-bar {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 42px;
  margin-bottom: 28px;
  flex-wrap: wrap;
}

.footer-link {
  font-size: 0.9375rem;
  font-weight: 600;
  color: var(--text-secondary);
  transition: color var(--transition-fast);
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.footer-link:hover {
  color: var(--azure-sky);
}

.footer-external-icon {
  width: 14px;
  height: 14px;
  opacity: 0.65;
}

.footer-bottom-info {
  text-align: center;
  font-size: 0.8125rem;
  color: var(--text-muted);
  line-height: 1.7;
  border-top: 1px solid var(--border-hairline);
  padding-top: 24px;
  max-width: 720px;
  margin: 0 auto;
}

/* Secondary Page Layout & Recommended Insights Page */
.page-hero {
  padding: 56px 0 36px;
  background: var(--bg-vapor);
  border-bottom: 1px solid var(--border-hairline);
  text-align: center;
}

.page-title {
  font-size: 2.25rem;
  font-weight: 800;
  margin-bottom: 10px;
  color: var(--text-ink);
}

.page-subtitle {
  font-size: 1rem;
  color: var(--text-secondary);
  max-width: 680px;
  margin: 0 auto;
  line-height: 1.6;
}

.page-content-wrapper {
  padding: 56px 0 80px;
}

.article-container {
  max-width: 860px;
  margin: 0 auto;
  background: var(--bg-card);
  border: 1px solid var(--border-hairline);
  border-radius: var(--radius-xl);
  padding: 44px 48px;
  box-shadow: var(--shadow-sm);
}

.article-container h2 {
  font-size: 1.4375rem;
  font-weight: 800;
  margin: 32px 0 14px;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--border-hairline);
  color: var(--text-ink);
}

.article-container h2:first-of-type {
  margin-top: 0;
}

.article-container h3 {
  font-size: 1.125rem;
  font-weight: 700;
  margin: 20px 0 10px;
  color: var(--text-ink);
}

.article-container p {
  color: var(--text-secondary);
  font-size: 0.9375rem;
  line-height: 1.8;
  margin-bottom: 16px;
}

.article-container ul, .article-container ol {
  color: var(--text-secondary);
  font-size: 0.9375rem;
  line-height: 1.75;
  margin-bottom: 20px;
  padding-left: 24px;
}

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

.notice-box {
  background: var(--azure-faint);
  border-left: 4px solid var(--azure-sky);
  padding: 16px 20px;
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
  margin: 24px 0;
  font-size: 0.9375rem;
  color: var(--text-secondary);
}

.notice-box strong {
  color: var(--text-ink);
}

/* Insights Articles Grid Layout */
.insights-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 28px;
  margin-top: 28px;
}

.insight-card {
  background: var(--bg-card);
  border: 1px solid var(--border-hairline);
  border-radius: var(--radius-xl);
  padding: 32px;
  box-shadow: var(--shadow-idle);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  transition: transform var(--transition-lift), box-shadow var(--transition-lift), border-color var(--transition-fast);
}

.insight-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-lift);
  border-color: var(--azure-border);
}

.insight-meta-strip {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 14px;
}

.insight-category-tag {
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--azure-sky);
  background: var(--azure-faint);
  border: 1px solid var(--azure-border);
  padding: 3px 10px;
  border-radius: var(--radius-full);
}

.insight-title {
  font-size: 1.25rem;
  font-weight: 800;
  line-height: 1.4;
  margin-bottom: 12px;
  color: var(--text-ink);
}

.insight-summary {
  font-size: 0.9375rem;
  color: var(--text-secondary);
  line-height: 1.65;
  margin-bottom: 20px;
  flex-grow: 1;
}

.insight-footer-strip {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 16px;
  border-top: 1px solid var(--border-hairline);
}

.insight-read-more {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--azure-sky);
  display: inline-flex;
  align-items: center;
  gap: 4px;
  transition: gap var(--transition-fast);
}

.insight-card:hover .insight-read-more {
  gap: 8px;
}

/* Sitemap Grid */
.sitemap-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
  margin-top: 24px;
}

.sitemap-card {
  background: var(--bg-vapor);
  border: 1px solid var(--border-hairline);
  border-radius: var(--radius-lg);
  padding: 24px;
}

.sitemap-card h3 {
  margin-top: 0;
  font-size: 1.125rem;
  color: var(--azure-sky);
  margin-bottom: 14px;
  display: flex;
  align-items: center;
  gap: 8px;
}

.sitemap-list {
  list-style: none;
  padding-left: 0;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.sitemap-list a {
  color: var(--text-secondary);
  font-size: 0.9375rem;
  transition: color var(--transition-fast);
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.sitemap-list a:hover {
  color: var(--azure-sky);
}

/* Dedicated Article & SEO Content Styles */
.article-breadcrumbs {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.8125rem;
  color: var(--text-muted);
  margin-bottom: 24px;
  flex-wrap: wrap;
}

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

.article-breadcrumbs a:hover {
  color: var(--azure-sky);
}

.article-header {
  margin-bottom: 32px;
  padding-bottom: 22px;
  border-bottom: 1px solid var(--border-hairline);
}

.article-meta {
  display: flex;
  align-items: center;
  gap: 16px;
  font-size: 0.8125rem;
  color: var(--text-muted);
  margin-top: 14px;
  flex-wrap: wrap;
}

.article-toc {
  background: var(--bg-vapor);
  border: 1px solid var(--border-hairline);
  border-radius: var(--radius-lg);
  padding: 24px 28px;
  margin: 28px 0 36px;
}

.article-toc-title {
  font-size: 1rem;
  font-weight: 700;
  color: var(--text-ink);
  margin-bottom: 14px;
  display: flex;
  align-items: center;
  gap: 8px;
}

.article-toc-list {
  list-style: none;
  padding-left: 0;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.article-toc-list a {
  color: var(--text-secondary);
  font-size: 0.875rem;
  transition: color var(--transition-fast);
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.article-toc-list a:hover {
  color: var(--azure-sky);
  text-decoration: underline;
}

.article-table-wrapper {
  overflow-x: auto;
  margin: 28px 0;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-hairline);
}

.article-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.875rem;
  text-align: left;
}

.article-table th {
  background: var(--bg-vapor);
  color: var(--text-ink);
  font-weight: 700;
  padding: 12px 16px;
  border-bottom: 1px solid var(--border-hairline);
  white-space: nowrap;
}

.article-table td {
  padding: 12px 16px;
  border-bottom: 1px solid var(--border-hairline);
  color: var(--text-secondary);
}

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

.article-table tr:hover td {
  background: var(--azure-faint);
}

.internal-link {
  color: var(--azure-sky);
  font-weight: 600;
  text-decoration: underline;
  text-underline-offset: 3px;
  transition: color var(--transition-fast);
}

.internal-link:hover {
  color: var(--azure-sky-hover);
}

.related-reading-box {
  margin-top: 48px;
  padding-top: 32px;
  border-top: 1px solid var(--border-hairline);
}

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

.related-card {
  background: var(--bg-vapor);
  border: 1px solid var(--border-hairline);
  border-radius: var(--radius-md);
  padding: 20px;
  transition: transform var(--transition-lift), border-color var(--transition-fast);
}

.related-card:hover {
  transform: translateY(-3px);
  border-color: var(--azure-border);
}

.related-card-title {
  font-size: 0.9375rem;
  font-weight: 700;
  color: var(--text-ink);
  margin-bottom: 6px;
  line-height: 1.45;
}

.related-card-desc {
  font-size: 0.8125rem;
  color: var(--text-muted);
  line-height: 1.5;
}

/* Responsive Media Queries */
@media (max-width: 1024px) {
  .hero-title {
    font-size: 2.75rem;
  }
  .advantages-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .advantages-grid .advantage-card:last-child {
    grid-column: span 2;
  }
  .pricing-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .pricing-card.featured {
    transform: none;
  }
  .pricing-card.featured:hover {
    transform: translateY(-5px);
  }
  .insights-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 768px) {
  :root {
    --header-height: 64px;
  }
  .container {
    padding: 0 16px;
  }
  .hero-section {
    padding: 48px 0 36px;
  }
  .hero-title {
    font-size: 2rem;
  }
  .hero-subtitle {
    font-size: 1rem;
    margin-bottom: 28px;
  }
  .hero-cta-group {
    flex-direction: column;
    width: 100%;
  }
  .btn-primary, .btn-secondary {
    width: 100%;
    justify-content: center;
    padding: 13px 20px;
  }
  .hero-spec-strip {
    flex-direction: column;
    align-items: flex-start;
    gap: 14px;
    padding-left: 12px;
  }
  .nav-menu {
    display: none;
    position: absolute;
    top: var(--header-height);
    left: 0;
    right: 0;
    background: var(--bg-surface-solid);
    border-bottom: 1px solid var(--border-hairline);
    padding: 20px;
    flex-direction: column;
    gap: 16px;
    box-shadow: var(--shadow-md);
  }
  .nav-menu.active {
    display: flex;
  }
  .mobile-menu-btn {
    display: flex;
  }
  .btn-header-cta {
    display: none;
  }
  .advantages-grid {
    grid-template-columns: 1fr;
  }
  .advantages-grid .advantage-card:last-child {
    grid-column: span 1;
  }
  .showcase-dual-grid {
    grid-template-columns: 1fr;
  }
  .service-badges-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .pricing-grid {
    grid-template-columns: 1fr;
  }
  .testimonials-grid {
    grid-template-columns: 1fr;
  }
  .footer-nav-bar {
    gap: 20px;
  }
  .article-container {
    padding: 28px 20px;
  }
  .sitemap-grid {
    grid-template-columns: 1fr;
  }
}