/* ==========================================================================
   闪电猫 Lightning Cat — Violet Precision Design System
   Pure CSS, semantic, mobile-first, zero external frameworks.
   ========================================================================== */

:root {
  --bg-primary: #100D18;
  --bg-panel: #191323;
  --bg-panel-alt: #130E1F;
  --bg-card: rgba(25, 19, 35, 0.85);
  --bg-card-hover: #221B30;
  
  --purple: #A78BFA;
  --purple-light: #D8CCFF;
  --purple-dark: #6D28D9;
  --purple-glow: rgba(167, 139, 250, 0.15);
  --purple-glow-subtle: rgba(167, 139, 250, 0.06);

  --silver-white: #E8EAF0;
  --silver-bright: #FFFFFF;
  --text-secondary: #ACA6B9;
  --text-muted: #827C91;

  --border-color: #352C43;
  --border-hover: #4E4163;
  --border-accent: rgba(167, 139, 250, 0.4);

  --electric-yellow: #F4E77B;
  --electric-yellow-glow: rgba(244, 231, 123, 0.2);
  --status-green: #10B981;
  --status-blue: #38BDF8;

  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  --font-mono: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;

  --container-max: 1200px;
  --container-narrow: 840px;
  --header-height: 72px;
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;
  --radius-full: 9999px;

  --transition-fast: 0.15s ease;
  --transition-normal: 0.25s ease;
  --shadow-subtle: 0 4px 20px rgba(0, 0, 0, 0.4);
  --shadow-glow: 0 0 25px var(--purple-glow);
}

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

html {
  font-family: var(--font-sans);
  background-color: var(--bg-primary);
  color: var(--silver-white);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  scroll-behavior: smooth;
  text-size-adjust: 100%;
}

body {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  overflow-x: hidden;
  background-color: var(--bg-primary);
  background-image: 
    radial-gradient(circle at 85% 10%, rgba(167, 139, 250, 0.05) 0%, transparent 40%),
    radial-gradient(circle at 10% 45%, rgba(244, 231, 123, 0.02) 0%, transparent 35%);
  background-attachment: fixed;
}

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

a {
  color: var(--purple-light);
  text-decoration: none;
  transition: color var(--transition-fast), border-color var(--transition-fast);
}

a:hover {
  color: var(--silver-bright);
}

a:focus-visible, button:focus-visible, summary:focus-visible {
  outline: 2px solid var(--purple);
  outline-offset: 3px;
}

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

h1 {
  font-size: clamp(2rem, 5vw, 3.25rem);
  margin-bottom: 1rem;
}

h2 {
  font-size: clamp(1.5rem, 3.5vw, 2.25rem);
  margin-bottom: 0.75rem;
}

h3 {
  font-size: clamp(1.15rem, 2.5vw, 1.45rem);
  margin-bottom: 0.5rem;
}

p {
  color: var(--text-secondary);
  margin-bottom: 1rem;
}

p:last-child {
  margin-bottom: 0;
}

/* Container */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 1.25rem;
}

.container-narrow {
  width: 100%;
  max-width: var(--container-narrow);
  margin: 0 auto;
  padding: 0 1.25rem;
}

/* Section Common */
.section {
  padding: 4.5rem 0;
  position: relative;
}

.section-alt {
  background-color: var(--bg-panel-alt);
  border-top: 1px solid var(--border-color);
  border-bottom: 1px solid var(--border-color);
}

.section-header {
  text-align: center;
  max-width: 680px;
  margin: 0 auto 3rem;
}

.section-tag {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.25rem 0.75rem;
  font-size: 0.8125rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--purple-light);
  background-color: rgba(167, 139, 250, 0.1);
  border: 1px solid var(--border-accent);
  border-radius: var(--radius-full);
  margin-bottom: 1rem;
}

.section-title {
  color: var(--silver-bright);
}

.section-desc {
  font-size: 1rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

/* Precision Notice Pill */
.sample-badge {
  display: inline-block;
  font-size: 0.75rem;
  padding: 0.15rem 0.5rem;
  border-radius: var(--radius-sm);
  background: rgba(244, 231, 123, 0.1);
  border: 1px solid rgba(244, 231, 123, 0.3);
  color: var(--electric-yellow);
  margin-left: 0.5rem;
  vertical-align: middle;
  font-weight: 500;
}

/* Buttons & Commercial CTA */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.75rem 1.5rem;
  font-size: 0.9375rem;
  font-weight: 600;
  border-radius: var(--radius-md);
  border: 1px solid transparent;
  cursor: pointer;
  transition: all var(--transition-fast);
  white-space: nowrap;
}

.btn-primary {
  background: linear-gradient(135deg, var(--purple) 0%, #8B5CF6 100%);
  color: #0E0916;
  border-color: rgba(255, 255, 255, 0.2);
  box-shadow: 0 4px 14px rgba(167, 139, 250, 0.35);
}

.btn-primary:hover {
  background: linear-gradient(135deg, #BCA5FB 0%, #9969F8 100%);
  color: #0E0916;
  transform: translateY(-1px);
  box-shadow: 0 6px 20px rgba(167, 139, 250, 0.5);
}

.btn-secondary {
  background-color: var(--bg-panel);
  color: var(--silver-white);
  border: 1px solid var(--border-color);
}

.btn-secondary:hover {
  border-color: var(--purple);
  color: var(--silver-bright);
  background-color: var(--bg-card-hover);
}

.btn-sm {
  padding: 0.45rem 0.9rem;
  font-size: 0.8125rem;
}

.btn-lg {
  padding: 0.9rem 1.85rem;
  font-size: 1rem;
}

.btn-yellow {
  background: var(--electric-yellow);
  color: #100D18;
  font-weight: 700;
}

.btn-yellow:hover {
  background: #FFF18A;
  color: #100D18;
  box-shadow: 0 4px 16px var(--electric-yellow-glow);
}

/* ==========================================================================
   Header & Navigation
   ========================================================================== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  height: var(--header-height);
  background-color: rgba(16, 13, 24, 0.92);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border-color);
}

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

.brand-link {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  text-decoration: none;
}

.brand-logo-img {
  height: 40px;
  width: auto;
}

.brand-text-block {
  display: flex;
  flex-direction: column;
}

.brand-name {
  font-size: 1.125rem;
  font-weight: 700;
  color: var(--silver-bright);
  line-height: 1.1;
}

.brand-tagline {
  font-size: 0.6875rem;
  color: var(--purple);
  letter-spacing: 0.12em;
  font-weight: 600;
  text-transform: uppercase;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 1.5rem;
}

.nav-link {
  font-size: 0.875rem;
  color: var(--text-secondary);
  font-weight: 500;
  padding: 0.5rem 0.25rem;
  position: relative;
  transition: color var(--transition-fast);
}

.nav-link:hover, .nav-link.active {
  color: var(--silver-bright);
}

.nav-link.active::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 2px;
  background-color: var(--purple);
  border-radius: var(--radius-full);
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.mobile-menu-cta {
  display: none;
}

/* Mobile Hamburger */
.mobile-nav-toggle {
  display: none;
  background: transparent;
  border: 1px solid var(--border-color);
  color: var(--silver-white);
  width: 40px;
  height: 40px;
  border-radius: var(--radius-md);
  align-items: center;
  justify-content: center;
  cursor: pointer;
  padding: 0;
}

.mobile-nav-toggle:hover {
  border-color: var(--purple);
}

.mobile-nav-toggle svg {
  width: 22px;
  height: 22px;
  stroke: currentColor;
}

/* ==========================================================================
   Hero Section
   ========================================================================== */
.hero-section {
  padding: 4.5rem 0 3.5rem;
  position: relative;
  overflow: hidden;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2.5rem;
  align-items: center;
}

@media (min-width: 992px) {
  .hero-grid {
    grid-template-columns: 1.15fr 0.85fr;
    gap: 3.5rem;
  }
}

.hero-content {
  max-width: 620px;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  padding: 0.35rem 0.9rem;
  border-radius: var(--radius-full);
  background-color: rgba(167, 139, 250, 0.08);
  border: 1px solid var(--border-accent);
  color: var(--purple-light);
  font-size: 0.8125rem;
  font-weight: 600;
  margin-bottom: 1.5rem;
}

.hero-badge-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background-color: var(--electric-yellow);
  box-shadow: 0 0 8px var(--electric-yellow);
}

.hero-title {
  margin-bottom: 1.25rem;
}

.hero-title .brand-title {
  display: block;
  font-size: clamp(2.2rem, 5vw, 3.6rem);
  font-weight: 800;
  color: var(--silver-bright);
  letter-spacing: -0.03em;
  line-height: 1.1;
  margin-bottom: 0.5rem;
}

.hero-title .hero-sub {
  display: block;
  font-size: clamp(1.4rem, 3.2vw, 2.1rem);
  font-weight: 700;
  background: linear-gradient(135deg, var(--purple-light) 0%, var(--purple) 70%, var(--electric-yellow) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  line-height: 1.25;
}

.hero-lead {
  font-size: 1.0625rem;
  color: var(--text-secondary);
  line-height: 1.7;
  margin-bottom: 2rem;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 1rem;
  margin-bottom: 2.25rem;
}

.hero-meta-points {
  display: flex;
  flex-wrap: wrap;
  gap: 1.5rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--border-color);
}

.meta-point {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.875rem;
  color: var(--text-secondary);
}

.meta-point svg {
  width: 16px;
  height: 16px;
  color: var(--purple);
}

/* Hero Visual & Core SVG */
.hero-visual-card {
  background: var(--bg-panel);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 1rem;
  position: relative;
  box-shadow: var(--shadow-subtle), var(--shadow-glow);
}

.hero-visual-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-bottom: 0.75rem;
  margin-bottom: 0.75rem;
  border-bottom: 1px solid rgba(53, 44, 67, 0.6);
  font-size: 0.75rem;
  color: var(--text-muted);
}

.hero-visual-dots {
  display: flex;
  gap: 6px;
}

.hero-visual-dots span {
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background-color: var(--border-color);
}

.hero-visual-dots span:nth-child(1) { background-color: #EF4444; opacity: 0.7; }
.hero-visual-dots span:nth-child(2) { background-color: #F59E0B; opacity: 0.7; }
.hero-visual-dots span:nth-child(3) { background-color: #10B981; opacity: 0.7; }

.hero-svg-wrapper {
  width: 100%;
  height: auto;
  aspect-ratio: 600 / 500;
  display: flex;
  align-items: center;
  justify-content: center;
}

/* SVG Animations (Restrained & CSS-only) */
@keyframes catFloat {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-5px); }
}

@keyframes arcPulse {
  0% { stroke-dashoffset: 400; stroke-opacity: 0.5; }
  50% { stroke-dashoffset: 200; stroke-opacity: 1; }
  100% { stroke-dashoffset: 0; stroke-opacity: 0.5; }
}

@keyframes signalPulse {
  0% { r: 6; opacity: 0.8; }
  100% { r: 14; opacity: 0; }
}

.hero-cat-svg .cat-float {
  animation: catFloat 6s ease-in-out infinite;
}

.hero-cat-svg .arc-pulse {
  stroke-dasharray: 20 8;
  animation: arcPulse 12s linear infinite;
}

.hero-cat-svg .signal-dot {
  animation: signalPulse 2.5s cubic-bezier(0.2, 0.8, 0.4, 1) infinite;
  transform-origin: center;
}

/* ==========================================================================
   Core Advantages (3 Items)
   ========================================================================== */
.advantages-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
}

@media (min-width: 768px) {
  .advantages-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

.advantage-card {
  background: var(--bg-panel);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 2rem 1.75rem;
  transition: all var(--transition-normal);
  position: relative;
  display: flex;
  flex-direction: column;
}

.advantage-card:hover {
  border-color: var(--border-hover);
  transform: translateY(-3px);
  box-shadow: 0 10px 24px rgba(0, 0, 0, 0.35);
}

.advantage-icon-wrapper {
  width: 52px;
  height: 52px;
  border-radius: var(--radius-md);
  background: rgba(167, 139, 250, 0.1);
  border: 1px solid var(--border-accent);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1.5rem;
  color: var(--purple);
}

.advantage-icon-wrapper svg {
  width: 26px;
  height: 26px;
}

.advantage-card h3 {
  color: var(--silver-bright);
  font-size: 1.25rem;
  margin-bottom: 0.75rem;
}

.advantage-card p {
  font-size: 0.9375rem;
  color: var(--text-secondary);
  line-height: 1.6;
  flex-grow: 1;
}

.advantage-spec-pill {
  margin-top: 1.25rem;
  padding-top: 1rem;
  border-top: 1px solid rgba(53, 44, 67, 0.6);
  font-size: 0.8125rem;
  color: var(--purple-light);
  display: flex;
  align-items: center;
  gap: 0.4rem;
}

/* ==========================================================================
   Global Network (Orbit & Region Directory)
   ========================================================================== */
.network-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
}

@media (min-width: 992px) {
  .network-layout {
    grid-template-columns: 1fr 1.1fr;
    gap: 3rem;
  }
}

.network-desc-panel {
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.network-desc-panel h3 {
  font-size: 1.65rem;
  color: var(--silver-bright);
  margin-bottom: 1rem;
}

.network-features-list {
  list-style: none;
  margin: 1.5rem 0 2rem;
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.network-features-list li {
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
  font-size: 0.9375rem;
  color: var(--text-secondary);
}

.network-features-list svg {
  width: 18px;
  height: 18px;
  color: var(--purple);
  margin-top: 2px;
  flex-shrink: 0;
}

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

.region-item {
  background: var(--bg-panel);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 1.25rem;
  transition: border-color var(--transition-fast);
}

.region-item:hover {
  border-color: var(--purple);
}

.region-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 0.5rem;
}

.region-name {
  font-size: 1rem;
  font-weight: 700;
  color: var(--silver-bright);
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.region-status-badge {
  font-size: 0.6875rem;
  padding: 0.15rem 0.45rem;
  border-radius: var(--radius-sm);
  background: rgba(16, 185, 129, 0.15);
  border: 1px solid rgba(16, 185, 129, 0.3);
  color: var(--status-green);
  font-weight: 600;
}

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

.network-notice-box {
  margin-top: 2rem;
  padding: 1rem 1.25rem;
  background: rgba(244, 231, 123, 0.05);
  border: 1px dashed rgba(244, 231, 123, 0.3);
  border-radius: var(--radius-md);
  font-size: 0.8125rem;
  color: var(--text-secondary);
}

.network-notice-box strong {
  color: var(--electric-yellow);
}

/* ==========================================================================
   AI & Streaming Section (Workbench & Wide Scene)
   ========================================================================== */
.ai-workbench {
  background: var(--bg-panel);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 2.25rem 2rem;
  margin-bottom: 2.5rem;
}

.workbench-header {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  margin-bottom: 1.75rem;
  border-bottom: 1px solid var(--border-color);
  padding-bottom: 1.25rem;
}

@media (min-width: 768px) {
  .workbench-header {
    flex-direction: row;
    align-items: center;
    justify-content: space-between;
  }
}

.workbench-title-group h3 {
  font-size: 1.35rem;
  color: var(--silver-bright);
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.workbench-sub {
  font-size: 0.875rem;
  color: var(--text-muted);
}

.ai-service-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 1.25rem;
}

.ai-service-item {
  background: var(--bg-primary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 1.25rem;
  transition: all var(--transition-fast);
}

.ai-service-item:hover {
  border-color: var(--border-accent);
}

.ai-service-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 0.5rem;
}

.ai-service-name {
  font-size: 1rem;
  font-weight: 700;
  color: var(--silver-bright);
}

.ai-service-tag {
  font-size: 0.6875rem;
  padding: 0.15rem 0.45rem;
  border-radius: var(--radius-sm);
  background: rgba(167, 139, 250, 0.15);
  color: var(--purple-light);
}

.ai-service-tip {
  font-size: 0.8125rem;
  color: var(--text-secondary);
  line-height: 1.5;
}

/* Streaming Wide Scene */
.streaming-wide-scene {
  background: linear-gradient(180deg, var(--bg-panel) 0%, #150F22 100%);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 2.25rem 2rem;
}

.streaming-header {
  margin-bottom: 1.75rem;
  border-bottom: 1px solid var(--border-color);
  padding-bottom: 1.25rem;
}

.streaming-header h3 {
  font-size: 1.35rem;
  color: var(--silver-bright);
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.streaming-scenarios-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 1.25rem;
  margin-bottom: 1.75rem;
}

.streaming-scenario-card {
  background: var(--bg-primary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 1.25rem;
}

.streaming-scenario-card h4 {
  font-size: 0.9375rem;
  color: var(--silver-bright);
  margin-bottom: 0.5rem;
  display: flex;
  align-items: center;
  gap: 0.4rem;
}

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

.compliance-notice-box {
  background: rgba(16, 13, 24, 0.6);
  border: 1px solid rgba(167, 139, 250, 0.2);
  border-radius: var(--radius-md);
  padding: 1rem 1.25rem;
  font-size: 0.8125rem;
  color: var(--text-muted);
  line-height: 1.6;
}

.compliance-notice-box strong {
  color: var(--purple-light);
}

/* ==========================================================================
   Pricing Section (Refined Table + Mobile Cards)
   ========================================================================== */
.pricing-wrapper {
  margin-bottom: 2rem;
}

/* Desktop Table View */
.pricing-table-container {
  display: none;
  background: var(--bg-panel);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  overflow-x: auto;
}

@media (min-width: 860px) {
  .pricing-table-container {
    display: block;
  }
}

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

.pricing-table th, .pricing-table td {
  padding: 1.25rem 1.5rem;
  border-bottom: 1px solid var(--border-color);
  font-size: 0.9375rem;
}

.pricing-table th {
  background: rgba(19, 14, 31, 0.9);
  color: var(--silver-bright);
  font-weight: 700;
  white-space: nowrap;
}

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

.pricing-table tbody tr:hover {
  background-color: rgba(167, 139, 250, 0.04);
}

.pricing-table .highlight-col {
  background-color: rgba(167, 139, 250, 0.05);
  border-left: 1px solid var(--border-accent);
  border-right: 1px solid var(--border-accent);
}

.plan-name-cell {
  font-weight: 700;
  color: var(--silver-bright);
}

.plan-badge {
  display: inline-block;
  font-size: 0.6875rem;
  padding: 0.15rem 0.5rem;
  border-radius: var(--radius-sm);
  background: rgba(167, 139, 250, 0.15);
  color: var(--purple-light);
  margin-left: 0.4rem;
  font-weight: 500;
}

.plan-price-block {
  display: flex;
  flex-direction: column;
  gap: 0.2rem;
}

.plan-price-val {
  font-size: 1.35rem;
  font-weight: 800;
  color: var(--electric-yellow);
}

.plan-price-sub {
  font-size: 0.75rem;
  color: var(--purple-light);
  font-weight: 500;
}

.plan-traffic-val {
  font-weight: 700;
  color: var(--silver-bright);
}

.pricing-extra-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1.25rem;
  margin-top: 2rem;
}

.pricing-extra-card {
  background: var(--bg-panel);
  border: 1px dashed var(--border-color);
  border-radius: var(--radius-md);
  padding: 1.25rem 1.5rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  transition: border-color var(--transition-fast);
}

.pricing-extra-card:hover {
  border-color: var(--purple);
}

.pricing-extra-info h4 {
  font-size: 0.9375rem;
  color: var(--silver-bright);
  margin-bottom: 0.25rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.pricing-extra-info p {
  font-size: 0.8125rem;
  color: var(--text-muted);
  margin-bottom: 0;
}

.pricing-extra-price {
  text-align: right;
  white-space: nowrap;
}

.pricing-extra-price strong {
  display: block;
  font-size: 1.15rem;
  color: var(--electric-yellow);
}

.pricing-extra-price span {
  font-size: 0.75rem;
  color: var(--text-muted);
}

/* Mobile Pricing Cards */
.pricing-cards-mobile {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
}

@media (min-width: 860px) {
  .pricing-cards-mobile {
    display: none;
  }
}

.plan-card {
  background: var(--bg-panel);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 1.75rem 1.5rem;
  position: relative;
  display: flex;
  flex-direction: column;
}

.plan-card.plan-featured {
  border-color: var(--purple);
  box-shadow: 0 0 25px var(--purple-glow);
}

.plan-card-tag {
  position: absolute;
  top: -12px;
  right: 1.5rem;
  background: var(--purple);
  color: #100D18;
  font-size: 0.6875rem;
  font-weight: 700;
  padding: 0.2rem 0.6rem;
  border-radius: var(--radius-full);
}

.plan-card-header {
  margin-bottom: 1.25rem;
}

.plan-card-title {
  font-size: 1.35rem;
  color: var(--silver-bright);
  margin-bottom: 0.25rem;
}

.plan-card-desc {
  font-size: 0.8125rem;
  color: var(--text-muted);
}

.plan-card-price {
  margin: 1.25rem 0;
  padding: 1rem 0;
  border-top: 1px solid var(--border-color);
  border-bottom: 1px solid var(--border-color);
}

.plan-card-features {
  list-style: none;
  margin-bottom: 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  flex-grow: 1;
}

.plan-card-features li {
  font-size: 0.875rem;
  color: var(--text-secondary);
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.plan-card-features svg {
  width: 16px;
  height: 16px;
  color: var(--purple);
  flex-shrink: 0;
}

.pricing-meta-note {
  font-size: 0.8125rem;
  color: var(--text-muted);
  text-align: center;
  max-width: 720px;
  margin: 1.5rem auto 0;
}

/* ==========================================================================
   SEO Articles Grid (9 Items)
   ========================================================================== */
.articles-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
}

@media (min-width: 640px) {
  .articles-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1024px) {
  .articles-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

.article-card {
  background: var(--bg-panel);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  transition: all var(--transition-normal);
}

.article-card:hover {
  border-color: var(--purple);
  transform: translateY(-3px);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.4);
}

.article-card-cover {
  width: 100%;
  aspect-ratio: 16 / 9;
  background-color: var(--bg-panel-alt);
  border-bottom: 1px solid var(--border-color);
  position: relative;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
}

.article-card-body {
  padding: 1.5rem;
  display: flex;
  flex-direction: column;
  flex-grow: 1;
}

.article-card-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 0.75rem;
  color: var(--text-muted);
  margin-bottom: 0.75rem;
}

.article-card-category {
  color: var(--purple-light);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.article-card-title {
  font-size: 1.15rem;
  color: var(--silver-bright);
  line-height: 1.35;
  margin-bottom: 0.75rem;
}

.article-card-title a {
  color: inherit;
}

.article-card-title a:hover {
  color: var(--purple-light);
}

.article-card-excerpt {
  font-size: 0.875rem;
  color: var(--text-secondary);
  line-height: 1.6;
  margin-bottom: 1.25rem;
  flex-grow: 1;
}

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

.article-read-more {
  color: var(--purple);
  font-weight: 600;
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
}

.article-read-more:hover {
  color: var(--silver-bright);
}

/* ==========================================================================
   User Testimonials (3-6 Items)
   ========================================================================== */
.testimonials-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
}

@media (min-width: 768px) {
  .testimonials-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

.testimonial-card {
  background: var(--bg-panel);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 1.75rem;
  display: flex;
  flex-direction: column;
}

.testimonial-header {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: 1rem;
}

.testimonial-avatar {
  width: 42px;
  height: 42px;
  border-radius: 50%;
  background: var(--bg-primary);
  border: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--purple);
  font-weight: 700;
  font-size: 0.9375rem;
}

.testimonial-user h4 {
  font-size: 0.9375rem;
  color: var(--silver-bright);
}

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

.testimonial-text {
  font-size: 0.875rem;
  color: var(--text-secondary);
  line-height: 1.6;
  flex-grow: 1;
}

.testimonial-footer {
  margin-top: 1.25rem;
  padding-top: 0.75rem;
  border-top: 1px solid rgba(53, 44, 67, 0.5);
  font-size: 0.75rem;
  color: var(--text-muted);
  display: flex;
  justify-content: space-between;
}

/* ==========================================================================
   FAQ Section (details / summary)
   ========================================================================== */
.faq-list {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  max-width: 860px;
  margin: 0 auto;
}

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

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

.faq-item[open] {
  border-color: var(--purple);
}

.faq-question {
  padding: 1.25rem 1.5rem;
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--silver-bright);
  cursor: pointer;
  list-style: none;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  user-select: none;
}

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

.faq-icon {
  width: 20px;
  height: 20px;
  flex-shrink: 0;
  color: var(--purple);
  transition: transform var(--transition-fast);
}

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

.faq-answer {
  padding: 0 1.5rem 1.5rem;
  font-size: 0.9375rem;
  color: var(--text-secondary);
  line-height: 1.7;
  border-top: 1px solid rgba(53, 44, 67, 0.4);
  padding-top: 1rem;
}

.faq-answer p {
  margin-bottom: 0.75rem;
}

.faq-answer p:last-child {
  margin-bottom: 0;
}

.faq-answer ul {
  margin: 0.5rem 0 0.75rem 1.25rem;
  color: var(--text-secondary);
}

.faq-answer li {
  margin-bottom: 0.35rem;
}

/* ==========================================================================
   Footer
   ========================================================================== */
.site-footer {
  background-color: #0B0812;
  border-top: 1px solid var(--border-color);
  padding: 4.5rem 0 2rem;
  margin-top: auto;
}

.footer-top {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2.5rem;
  margin-bottom: 3.5rem;
}

@media (min-width: 768px) {
  .footer-top {
    grid-template-columns: 1.4fr repeat(3, 1fr);
  }
}

.footer-brand {
  max-width: 320px;
}

.footer-brand .brand-logo-img {
  height: 38px;
  margin-bottom: 1rem;
}

.footer-desc {
  font-size: 0.875rem;
  color: var(--text-secondary);
  line-height: 1.6;
  margin-bottom: 1.25rem;
}

.footer-col h4 {
  font-size: 0.9375rem;
  color: var(--silver-bright);
  font-weight: 700;
  margin-bottom: 1.25rem;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.footer-links {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.65rem;
}

.footer-links a {
  font-size: 0.875rem;
  color: var(--text-secondary);
  transition: color var(--transition-fast);
}

.footer-links a:hover {
  color: var(--silver-bright);
}

.footer-middle-links {
  padding: 1.5rem 0;
  border-top: 1px solid var(--border-color);
  border-bottom: 1px solid var(--border-color);
  margin-bottom: 2rem;
}

.footer-recs-title {
  font-size: 0.8125rem;
  color: var(--text-muted);
  margin-bottom: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.footer-recs-list {
  display: flex;
  flex-wrap: wrap;
  gap: 1.5rem;
  list-style: none;
}

.footer-recs-list a {
  font-size: 0.875rem;
  color: var(--purple-light);
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
}

.footer-recs-list a:hover {
  color: var(--silver-bright);
  text-decoration: underline;
}

.footer-bottom {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  font-size: 0.8125rem;
  color: var(--text-muted);
}

@media (min-width: 768px) {
  .footer-bottom {
    flex-direction: row;
    justify-content: space-between;
    align-items: center;
  }
}

.footer-disclaimer {
  max-width: 680px;
  line-height: 1.5;
}

/* ==========================================================================
   Article Detail Page Styles
   ========================================================================== */
.article-header {
  padding: 3.5rem 0 2rem;
  border-bottom: 1px solid var(--border-color);
  background: var(--bg-panel-alt);
}

.breadcrumbs {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.8125rem;
  color: var(--text-muted);
  margin-bottom: 1.5rem;
}

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

.breadcrumbs a:hover {
  color: var(--silver-bright);
}

.breadcrumbs span.separator {
  color: var(--border-color);
}

.breadcrumbs span.current {
  color: var(--purple-light);
}

.article-header h1 {
  font-size: clamp(1.85rem, 4vw, 2.75rem);
  color: var(--silver-bright);
  margin-bottom: 1.25rem;
  line-height: 1.25;
}

.article-meta-bar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 1.5rem;
  font-size: 0.875rem;
  color: var(--text-muted);
}

.article-meta-item {
  display: flex;
  align-items: center;
  gap: 0.4rem;
}

.article-meta-item svg {
  width: 16px;
  height: 16px;
  color: var(--purple);
}

.article-content-body {
  padding: 3.5rem 0;
}

.article-rich-text {
  color: var(--silver-white);
  font-size: 1.0625rem;
  line-height: 1.8;
}

.article-rich-text h2 {
  font-size: 1.65rem;
  color: var(--silver-bright);
  margin: 2.75rem 0 1rem;
  padding-bottom: 0.5rem;
  border-bottom: 1px solid var(--border-color);
}

.article-rich-text h3 {
  font-size: 1.3rem;
  color: var(--purple-light);
  margin: 2rem 0 0.75rem;
}

.article-rich-text p {
  color: var(--text-secondary);
  margin-bottom: 1.35rem;
}

.article-rich-text ul, .article-rich-text ol {
  margin: 1rem 0 1.5rem 1.5rem;
  color: var(--text-secondary);
}

.article-rich-text li {
  margin-bottom: 0.5rem;
}

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

.article-rich-text blockquote {
  margin: 1.75rem 0;
  padding: 1.25rem 1.5rem;
  background: var(--bg-panel);
  border-left: 4px solid var(--purple);
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
  color: var(--purple-light);
  font-style: normal;
}

.article-rich-text blockquote p {
  color: var(--silver-white);
  margin-bottom: 0;
}

.article-callout {
  background: var(--bg-panel);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 1.25rem 1.5rem;
  margin: 1.75rem 0;
}

.article-callout-warning {
  border-color: rgba(244, 231, 123, 0.4);
  background: rgba(244, 231, 123, 0.05);
}

.article-callout-warning h4 {
  color: var(--electric-yellow);
  margin-bottom: 0.5rem;
  font-size: 1rem;
}

.article-toc {
  background: var(--bg-panel);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 1.25rem 1.5rem;
  margin-bottom: 2.5rem;
}

.article-toc h3 {
  font-size: 1.05rem;
  color: var(--silver-bright);
  margin-bottom: 0.75rem;
}

.article-toc ul {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.article-toc a {
  font-size: 0.9375rem;
  color: var(--text-secondary);
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.article-toc a:hover {
  color: var(--purple-light);
}

.article-related {
  margin-top: 3.5rem;
  padding-top: 2.5rem;
  border-top: 1px solid var(--border-color);
}

.article-related h3 {
  font-size: 1.35rem;
  color: var(--silver-bright);
  margin-bottom: 1.5rem;
}

.related-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.25rem;
}

@media (min-width: 640px) {
  .related-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

.related-card {
  background: var(--bg-panel);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 1.25rem;
  transition: border-color var(--transition-fast);
}

.related-card:hover {
  border-color: var(--purple);
}

.related-card h4 {
  font-size: 1rem;
  color: var(--silver-bright);
  margin-bottom: 0.5rem;
}

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

/* ==========================================================================
   Static Policy Pages (About, Terms, Privacy, Sitemap)
   ========================================================================== */
.policy-page-header {
  padding: 3.5rem 0 2rem;
  background: var(--bg-panel-alt);
  border-bottom: 1px solid var(--border-color);
}

.policy-page-header h1 {
  font-size: clamp(2rem, 4vw, 2.75rem);
  color: var(--silver-bright);
  margin-bottom: 0.5rem;
}

.policy-page-header p {
  font-size: 1rem;
  color: var(--text-secondary);
}

.policy-body {
  padding: 3.5rem 0;
}

.sitemap-group {
  margin-bottom: 2.5rem;
}

.sitemap-group h2 {
  font-size: 1.35rem;
  color: var(--purple-light);
  margin-bottom: 1rem;
  border-bottom: 1px solid var(--border-color);
  padding-bottom: 0.5rem;
}

.sitemap-list {
  list-style: none;
  display: grid;
  grid-template-columns: 1fr;
  gap: 0.75rem;
}

@media (min-width: 640px) {
  .sitemap-list {
    grid-template-columns: repeat(2, 1fr);
  }
}

.sitemap-list li a {
  display: block;
  background: var(--bg-panel);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 0.75rem 1rem;
  color: var(--silver-white);
  transition: all var(--transition-fast);
}

.sitemap-list li a:hover {
  border-color: var(--purple);
  color: var(--purple-light);
  transform: translateX(4px);
}

/* ==========================================================================
   Mobile Nav Menu Overlay
   ========================================================================== */
@media (max-width: 991px) {
  .site-nav {
    position: fixed;
    top: var(--header-height);
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(16, 13, 24, 0.98);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    flex-direction: column;
    align-items: flex-start;
    padding: 2rem 1.5rem;
    gap: 1.25rem;
    transform: translateY(-100%);
    opacity: 0;
    visibility: hidden;
    transition: transform var(--transition-normal), opacity var(--transition-normal), visibility var(--transition-normal);
    overflow-y: auto;
    border-bottom: 1px solid var(--border-color);
    z-index: 99;
  }

  .site-nav.is-open {
    transform: translateY(0);
    opacity: 1;
    visibility: visible;
  }

  .nav-link {
    font-size: 1.15rem;
    width: 100%;
    padding: 0.65rem 0;
    border-bottom: 1px solid rgba(53, 44, 67, 0.4);
  }

  .mobile-nav-toggle {
    display: flex;
  }

  .nav-actions {
    display: none;
  }

  .mobile-menu-cta {
    margin-top: 1.5rem;
    width: 100%;
  }

  .mobile-menu-cta .btn {
    width: 100%;
  }
}

/* ==========================================================================
   Accessibility & Reduced Motion
   ========================================================================== */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}