/* ==========================================================================
   大象网络 Network Infrastructure - Calm Financial Dashboard Design System
   Color Palette: Pure White, Deep Navy Text, Slate Blue Accents, Muted Borders
   Style: Financial Terminal / High-Density SaaS / Modern Sans-Serif Precision
   ========================================================================== */

:root {
  /* Surfaces & Backgrounds */
  --bg-main: #ffffff;
  --bg-subtle: #f8fafc;
  --bg-card: #ffffff;
  --bg-surface-elevated: #f1f5f9;
  --bg-hover: #f8fafc;
  --bg-tag: #f1f5f9;
  
  /* Text & Typography */
  --text-navy-950: #091428;
  --text-navy-900: #0f172a;
  --text-navy-800: #1e293b;
  --text-slate-600: #475569;
  --text-slate-500: #64748b;
  --text-slate-400: #94a3b8;
  --text-white: #ffffff;

  /* Accent & Action (Slate Blue / Deep Navy) */
  --accent-navy: #0f172a;
  --accent-navy-hover: #1e293b;
  --accent-blue: #1d4ed8;
  --accent-blue-hover: #1e40af;
  --accent-blue-light: #eff6ff;
  --accent-blue-border: #bfdbfe;
  
  /* Financial Status Colors (Calm & Non-Neon) */
  --status-green: #059669;
  --status-green-bg: #ecfdf5;
  --status-green-border: #a7f3d0;
  --status-blue: #2563eb;
  --status-blue-bg: #eff6ff;
  --status-amber: #d97706;
  --status-amber-bg: #fffbeb;
  
  /* Precision Borders & Lines */
  --border-hairline: #e2e8f0;
  --border-medium: #cbd5e1;
  --border-focus: #0f172a;
  
  /* Spacing Scale */
  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-5: 1.25rem;
  --space-6: 1.5rem;
  --space-8: 2rem;
  --space-10: 2.5rem;
  --space-12: 3rem;
  --space-16: 4rem;
  --space-20: 5rem;
  
  /* Radii */
  --radius-xs: 3px;
  --radius-sm: 4px;
  --radius-md: 6px;
  --radius-lg: 8px;
  --radius-xl: 12px;
  
  /* Subtle Institutional Shadows */
  --shadow-subtle: 0 1px 2px rgba(15, 23, 42, 0.04);
  --shadow-card: 0 1px 3px rgba(15, 23, 42, 0.06), 0 1px 2px rgba(15, 23, 42, 0.04);
  --shadow-card-hover: 0 4px 12px rgba(15, 23, 42, 0.08);
  
  /* Typography Stacks */
  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans SC", sans-serif;
  --font-mono: ui-monospace, "SF Mono", "Cascadia Code", "Segoe UI Mono", Menlo, Monaco, Consolas, monospace;
}

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

html {
  font-size: 15px;
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  background-color: var(--bg-main);
  color: var(--text-navy-900);
  font-family: var(--font-sans);
  line-height: 1.6;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

/* Typography Base */
h1, h2, h3, h4, h5, h6 {
  color: var(--text-navy-950);
  font-weight: 600;
  line-height: 1.25;
  letter-spacing: -0.02em;
}

p {
  color: var(--text-slate-600);
}

a {
  color: inherit;
  text-decoration: none;
  transition: color 0.15s ease;
}

ul, ol {
  list-style: none;
}

button, input, select {
  font-family: inherit;
  font-size: inherit;
}

/* Layout Utilities */
.container {
  width: 100%;
  max-width: 1240px;
  margin-left: auto;
  margin-right: auto;
  padding-left: var(--space-6);
  padding-right: var(--space-6);
}

.section {
  padding-top: var(--space-16);
  padding-bottom: var(--space-16);
  border-bottom: 1px solid var(--border-hairline);
}

.section-alt {
  background-color: var(--bg-subtle);
}

/* Compact Data Labels & Badges */
.data-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.375rem;
  padding: 0.2rem 0.5rem;
  background-color: var(--bg-tag);
  border: 1px solid var(--border-hairline);
  border-radius: var(--radius-xs);
  font-family: var(--font-mono);
  font-size: 0.733rem;
  font-weight: 500;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--text-slate-600);
  line-height: 1.2;
}

.data-badge.status-live {
  background-color: var(--status-green-bg);
  border-color: var(--status-green-border);
  color: var(--status-green);
}

.data-badge.status-live::before {
  content: "";
  display: inline-block;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background-color: var(--status-green);
  box-shadow: 0 0 0 2px rgba(5, 150, 105, 0.2);
}

.data-badge.status-info {
  background-color: var(--accent-blue-light);
  border-color: var(--accent-blue-border);
  color: var(--accent-blue);
}

/* Buttons & CTA - Calm Financial Precision */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.65rem 1.25rem;
  font-size: 0.933rem;
  font-weight: 500;
  border-radius: var(--radius-sm);
  border: 1px solid transparent;
  cursor: pointer;
  transition: all 0.15s ease;
  white-space: nowrap;
}

.btn-primary {
  background-color: var(--accent-navy);
  border-color: var(--accent-navy);
  color: var(--text-white);
}

.btn-primary:hover {
  background-color: var(--accent-navy-hover);
  border-color: var(--accent-navy-hover);
  transform: translateY(-1px);
  box-shadow: 0 2px 6px rgba(15, 23, 42, 0.15);
}

.btn-secondary {
  background-color: var(--bg-card);
  border-color: var(--border-medium);
  color: var(--text-navy-900);
}

.btn-secondary:hover {
  background-color: var(--bg-subtle);
  border-color: var(--text-navy-900);
  color: var(--text-navy-950);
}

.btn-sm {
  padding: 0.4rem 0.85rem;
  font-size: 0.82rem;
}

.btn-block {
  width: 100%;
}

/* Header & Navigation Bar */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background-color: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--border-hairline);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 62px;
}

.brand-logo {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  font-size: 1.15rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--text-navy-950);
}

.brand-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  background-color: var(--accent-navy);
  color: #ffffff;
  border-radius: var(--radius-xs);
  font-size: 0.85rem;
  font-family: var(--font-mono);
  font-weight: 700;
}

.brand-name {
  color: var(--text-navy-950);
}

.brand-sub {
  font-size: 0.733rem;
  font-weight: 500;
  color: var(--text-slate-500);
  margin-left: 0.25rem;
  padding-left: 0.5rem;
  border-left: 1px solid var(--border-medium);
  font-family: var(--font-mono);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 1.75rem;
}

.nav-link {
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--text-slate-600);
  transition: color 0.15s ease;
}

.nav-link:hover {
  color: var(--text-navy-950);
}

.header-cta-group {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

/* Mobile Toggle */
.mobile-menu-toggle {
  display: none;
  background: none;
  border: 1px solid var(--border-hairline);
  padding: 0.4rem 0.6rem;
  border-radius: var(--radius-xs);
  cursor: pointer;
  color: var(--text-navy-900);
}

.mobile-menu-toggle svg {
  width: 20px;
  height: 20px;
  display: block;
}

/* Split Hero Section */
.hero-section {
  padding-top: var(--space-12);
  padding-bottom: var(--space-16);
  background-color: var(--bg-main);
  border-bottom: 1px solid var(--border-hairline);
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: var(--space-10);
  align-items: start;
}

.hero-content {
  display: flex;
  flex-direction: column;
  gap: var(--space-5);
}

.hero-meta-bar {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  flex-wrap: wrap;
}

.hero-title {
  font-size: 2.5rem;
  font-weight: 700;
  letter-spacing: -0.03em;
  line-height: 1.18;
  color: var(--text-navy-950);
}

.hero-title .accent-sub {
  display: block;
  font-size: 1.45rem;
  font-weight: 500;
  color: var(--text-slate-500);
  margin-top: 0.35rem;
  letter-spacing: -0.01em;
}

.hero-desc {
  font-size: 1.05rem;
  line-height: 1.65;
  color: var(--text-slate-600);
  max-width: 580px;
}

.hero-cta-wrapper {
  display: flex;
  align-items: center;
  gap: 0.85rem;
  flex-wrap: wrap;
  padding-top: var(--space-2);
}

.hero-guarantee {
  display: flex;
  align-items: center;
  gap: 1.5rem;
  font-size: 0.8rem;
  color: var(--text-slate-500);
  font-family: var(--font-mono);
  padding-top: var(--space-2);
}

.guarantee-item {
  display: flex;
  align-items: center;
  gap: 0.35rem;
}

.guarantee-item svg {
  width: 14px;
  height: 14px;
  color: var(--status-green);
}

/* Hero Financial Information Panel */
.telemetry-card {
  background-color: var(--bg-card);
  border: 1px solid var(--border-hairline);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-card);
  overflow: hidden;
}

.telemetry-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.75rem 1rem;
  background-color: var(--bg-subtle);
  border-bottom: 1px solid var(--border-hairline);
}

.telemetry-title {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--text-navy-900);
  letter-spacing: 0.03em;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.telemetry-clock {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--text-slate-500);
}

.telemetry-nav {
  display: flex;
  border-bottom: 1px solid var(--border-hairline);
  background-color: #ffffff;
}

.telemetry-tab {
  flex: 1;
  padding: 0.5rem 0.6rem;
  background: none;
  border: none;
  border-bottom: 2px solid transparent;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--text-slate-500);
  cursor: pointer;
  text-align: center;
  transition: all 0.15s ease;
}

.telemetry-tab.active {
  color: var(--text-navy-950);
  font-weight: 600;
  border-bottom-color: var(--accent-navy);
  background-color: var(--bg-subtle);
}

.telemetry-table-wrapper {
  overflow-x: auto;
}

.telemetry-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.8rem;
  text-align: left;
}

.telemetry-table th {
  padding: 0.5rem 0.85rem;
  background-color: var(--bg-subtle);
  color: var(--text-slate-500);
  font-family: var(--font-mono);
  font-weight: 500;
  font-size: 0.72rem;
  letter-spacing: 0.04em;
  border-bottom: 1px solid var(--border-hairline);
  white-space: nowrap;
}

.telemetry-table td {
  padding: 0.65rem 0.85rem;
  border-bottom: 1px solid var(--border-hairline);
  color: var(--text-navy-900);
  white-space: nowrap;
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
}

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

.telemetry-table tr:hover td {
  background-color: var(--bg-hover);
}

.node-name {
  font-family: var(--font-sans);
  font-weight: 600;
  color: var(--text-navy-950);
  display: flex;
  align-items: center;
  gap: 0.4rem;
}

.flag-badge {
  font-size: 0.85rem;
}

.latency-good {
  color: var(--status-green);
  font-weight: 600;
}

.latency-fair {
  color: var(--text-navy-800);
}

.telemetry-summary-strip {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  padding: 0.85rem 1rem;
  background-color: var(--bg-subtle);
  border-top: 1px solid var(--border-hairline);
  gap: 0.5rem;
  text-align: center;
}

.summary-col {
  border-right: 1px solid var(--border-hairline);
}

.summary-col:last-child {
  border-right: none;
}

.summary-label {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--text-slate-500);
  text-transform: uppercase;
}

.summary-val {
  font-family: var(--font-mono);
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--text-navy-950);
  margin-top: 0.15rem;
}

/* Section Header Typography */
.section-header {
  margin-bottom: var(--space-10);
}

.section-header.text-center {
  text-align: center;
  max-width: 680px;
  margin-left: auto;
  margin-right: auto;
}

.section-pretitle {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--text-slate-500);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-bottom: var(--space-2);
}

.section-title {
  font-size: 1.85rem;
  font-weight: 700;
  color: var(--text-navy-950);
  letter-spacing: -0.025em;
  line-height: 1.25;
}

.section-subtitle {
  font-size: 1rem;
  color: var(--text-slate-600);
  margin-top: var(--space-2);
  line-height: 1.6;
}

/* Metric-style Advantages Grid */
.metrics-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-5);
}

.metric-module {
  background-color: var(--bg-card);
  border: 1px solid var(--border-hairline);
  border-radius: var(--radius-md);
  padding: var(--space-6);
  transition: border-color 0.15s ease, box-shadow 0.15s ease;
  position: relative;
  display: flex;
  flex-direction: column;
}

.metric-module:hover {
  border-color: var(--border-medium);
  box-shadow: var(--shadow-card-hover);
}

.metric-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: var(--space-4);
}

.metric-kpi {
  font-family: var(--font-mono);
  font-size: 2.1rem;
  font-weight: 700;
  color: var(--text-navy-950);
  line-height: 1;
  font-variant-numeric: tabular-nums;
  letter-spacing: -0.03em;
}

.metric-delta {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  font-weight: 600;
  color: var(--status-green);
  background-color: var(--status-green-bg);
  padding: 0.15rem 0.4rem;
  border-radius: var(--radius-xs);
  border: 1px solid var(--status-green-border);
}

.metric-title {
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--text-navy-950);
  margin-bottom: var(--space-2);
}

.metric-desc {
  font-size: 0.88rem;
  color: var(--text-slate-600);
  line-height: 1.55;
  margin-top: auto;
}

/* Global Node Infrastructure Section */
.node-spec-grid {
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: var(--space-6);
  align-items: start;
}

.node-table-card {
  background-color: var(--bg-card);
  border: 1px solid var(--border-hairline);
  border-radius: var(--radius-md);
  overflow: hidden;
}

.node-sidebar-card {
  background-color: var(--bg-card);
  border: 1px solid var(--border-hairline);
  border-radius: var(--radius-md);
  padding: var(--space-6);
  display: flex;
  flex-direction: column;
  gap: var(--space-5);
}

.node-sidebar-item {
  border-bottom: 1px solid var(--border-hairline);
  padding-bottom: var(--space-4);
}

.node-sidebar-item:last-child {
  border-bottom: none;
  padding-bottom: 0;
}

.node-sidebar-title {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--text-navy-950);
  margin-bottom: 0.35rem;
  display: flex;
  align-items: center;
  gap: 0.4rem;
}

.node-sidebar-desc {
  font-size: 0.82rem;
  color: var(--text-slate-600);
  line-height: 1.5;
}

/* AI Tools & Streaming Matrix */
.matrix-container {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-6);
}

.matrix-card {
  background-color: var(--bg-card);
  border: 1px solid var(--border-hairline);
  border-radius: var(--radius-md);
  padding: var(--space-6);
}

.matrix-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: var(--space-5);
  padding-bottom: var(--space-3);
  border-bottom: 1px solid var(--border-hairline);
}

.matrix-header h3 {
  font-size: 1.15rem;
}

.matrix-list {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.matrix-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.65rem 0.85rem;
  background-color: var(--bg-subtle);
  border: 1px solid var(--border-hairline);
  border-radius: var(--radius-sm);
  transition: all 0.15s ease;
}

.matrix-item:hover {
  background-color: #ffffff;
  border-color: var(--border-medium);
}

.matrix-brand {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  font-weight: 600;
  color: var(--text-navy-950);
  font-size: 0.9rem;
}

.matrix-badge-group {
  display: flex;
  align-items: center;
  gap: 0.4rem;
}

/* Structured Plans Comparison Grid */
.plans-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-4);
  margin-bottom: var(--space-8);
}

.plan-card {
  background-color: var(--bg-card);
  border: 1px solid var(--border-hairline);
  border-radius: var(--radius-md);
  padding: var(--space-6);
  display: flex;
  flex-direction: column;
  position: relative;
  transition: all 0.15s ease;
}

.plan-card:hover {
  border-color: var(--border-medium);
  box-shadow: var(--shadow-card-hover);
}

.plan-card.plan-featured {
  border-color: var(--accent-navy);
  box-shadow: 0 0 0 1px var(--accent-navy), var(--shadow-card);
}

.plan-ribbon {
  position: absolute;
  top: -10px;
  right: 14px;
  background-color: var(--accent-navy);
  color: var(--text-white);
  font-family: var(--font-mono);
  font-size: 0.68rem;
  font-weight: 600;
  padding: 0.15rem 0.5rem;
  border-radius: var(--radius-xs);
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.plan-name {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--text-navy-950);
  margin-bottom: 0.35rem;
}

.plan-desc {
  font-size: 0.8rem;
  color: var(--text-slate-500);
  min-height: 2.4em;
  line-height: 1.4;
  margin-bottom: var(--space-4);
}

.plan-price-wrap {
  display: flex;
  align-items: baseline;
  gap: 0.25rem;
  margin-bottom: var(--space-4);
  padding-bottom: var(--space-4);
  border-bottom: 1px solid var(--border-hairline);
}

.plan-currency {
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--text-navy-950);
}

.plan-price {
  font-family: var(--font-mono);
  font-size: 2.2rem;
  font-weight: 700;
  color: var(--text-navy-950);
  line-height: 1;
  letter-spacing: -0.03em;
  font-variant-numeric: tabular-nums;
}

.plan-period {
  font-size: 0.8rem;
  color: var(--text-slate-500);
}

.plan-features-list {
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
  margin-bottom: var(--space-6);
  flex-grow: 1;
}

.plan-feature-row {
  display: flex;
  align-items: flex-start;
  gap: 0.45rem;
  font-size: 0.84rem;
  color: var(--text-slate-600);
  line-height: 1.4;
}

.plan-feature-row svg {
  width: 14px;
  height: 14px;
  color: var(--status-green);
  flex-shrink: 0;
  margin-top: 2px;
}

.plan-feature-row strong {
  color: var(--text-navy-950);
}

/* Feature Comparison Table */
.comparison-table-wrap {
  background-color: var(--bg-card);
  border: 1px solid var(--border-hairline);
  border-radius: var(--radius-md);
  overflow-x: auto;
}

.comparison-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.85rem;
  text-align: left;
}

.comparison-table th, 
.comparison-table td {
  padding: 0.75rem 1rem;
  border-bottom: 1px solid var(--border-hairline);
  white-space: nowrap;
}

.comparison-table th {
  background-color: var(--bg-subtle);
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--text-slate-600);
  font-weight: 600;
}

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

.comparison-table tr:hover td {
  background-color: var(--bg-hover);
}

/* SEO Articles Grid (Financial Report Style) */
.articles-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-5);
}

.article-card {
  background-color: var(--bg-card);
  border: 1px solid var(--border-hairline);
  border-radius: var(--radius-md);
  padding: var(--space-6);
  display: flex;
  flex-direction: column;
  transition: all 0.15s ease;
  text-decoration: none;
  color: inherit;
}

.article-card:hover {
  border-color: var(--border-medium);
  box-shadow: var(--shadow-card-hover);
  transform: translateY(-2px);
}

.article-meta-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: var(--space-3);
}

.article-cat {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  font-weight: 600;
  text-transform: uppercase;
  color: var(--text-slate-500);
}

.article-date {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--text-slate-400);
}

.article-title {
  font-size: 1.05rem;
  font-weight: 600;
  line-height: 1.4;
  color: var(--text-navy-950);
  margin-bottom: var(--space-3);
}

.article-snippet {
  font-size: 0.85rem;
  color: var(--text-slate-600);
  line-height: 1.55;
  margin-bottom: var(--space-4);
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.article-footer {
  margin-top: auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 0.8rem;
  font-weight: 500;
  color: var(--accent-blue);
  font-family: var(--font-mono);
}

/* User Reviews Section */
.reviews-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-5);
}

.review-card {
  background-color: var(--bg-card);
  border: 1px solid var(--border-hairline);
  border-radius: var(--radius-md);
  padding: var(--space-6);
  display: flex;
  flex-direction: column;
}

.review-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: var(--space-3);
}

.reviewer-profile {
  display: flex;
  align-items: center;
  gap: 0.6rem;
}

.reviewer-avatar {
  width: 32px;
  height: 32px;
  border-radius: var(--radius-xs);
  background-color: var(--bg-subtle);
  border: 1px solid var(--border-hairline);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--text-navy-900);
}

.reviewer-name {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--text-navy-950);
}

.reviewer-role {
  font-size: 0.75rem;
  color: var(--text-slate-500);
}

.review-body {
  font-size: 0.88rem;
  line-height: 1.6;
  color: var(--text-slate-600);
}

/* FAQ Neat Expandable Rows */
.faq-list {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  max-width: 920px;
  margin-left: auto;
  margin-right: auto;
}

.faq-item {
  border: 1px solid var(--border-hairline);
  border-radius: var(--radius-sm);
  background-color: var(--bg-card);
  overflow: hidden;
  transition: border-color 0.15s ease;
}

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

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

.faq-question {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1rem 1.25rem;
  font-size: 0.98rem;
  font-weight: 600;
  color: var(--text-navy-950);
  cursor: pointer;
  user-select: none;
  list-style: none;
}

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

.faq-toggle-icon {
  width: 18px;
  height: 18px;
  color: var(--text-slate-500);
  transition: transform 0.2s ease;
  flex-shrink: 0;
}

.faq-item[open] .faq-toggle-icon {
  transform: rotate(180deg);
  color: var(--text-navy-950);
}

.faq-answer {
  padding: 0 1.25rem 1.25rem 1.25rem;
  font-size: 0.9rem;
  line-height: 1.65;
  color: var(--text-slate-600);
  border-top: 1px solid var(--border-hairline);
  background-color: var(--bg-subtle);
  padding-top: 1rem;
}

.faq-answer p {
  margin-bottom: 0.5rem;
}

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

/* Pre-Footer CTA Bar */
.bottom-cta-banner {
  background-color: var(--bg-card);
  border-top: 1px solid var(--border-hairline);
  border-bottom: 1px solid var(--border-hairline);
  padding: var(--space-12) 0;
  text-align: center;
}

.bottom-cta-inner {
  max-width: 640px;
  margin-left: auto;
  margin-right: auto;
}

/* Footer Section */
.site-footer {
  background-color: var(--bg-main);
  border-top: 1px solid var(--border-hairline);
  padding-top: var(--space-16);
  padding-bottom: var(--space-12);
  font-size: 0.85rem;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1.5fr;
  gap: var(--space-8);
  margin-bottom: var(--space-12);
}

.footer-brand-col {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.footer-desc {
  font-size: 0.85rem;
  line-height: 1.6;
  color: var(--text-slate-500);
  max-width: 340px;
}

.footer-heading {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-navy-950);
  margin-bottom: var(--space-4);
}

.footer-list {
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
}

.footer-link {
  color: var(--text-slate-600);
  transition: color 0.15s ease;
}

.footer-link:hover {
  color: var(--text-navy-950);
}

.footer-bottom-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: var(--space-6);
  border-top: 1px solid var(--border-hairline);
  color: var(--text-slate-400);
  font-size: 0.78rem;
  font-family: var(--font-mono);
}

.footer-links-row {
  display: flex;
  gap: 1.5rem;
}

/* Subpage / Article Layout Styles */
.page-container {
  max-width: 860px;
  margin-left: auto;
  margin-right: auto;
  padding: var(--space-12) var(--space-6);
}

.breadcrumb {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.8rem;
  font-family: var(--font-mono);
  color: var(--text-slate-500);
  margin-bottom: var(--space-6);
}

.breadcrumb a {
  color: var(--text-slate-600);
}

.breadcrumb a:hover {
  color: var(--text-navy-950);
}

.article-header {
  margin-bottom: var(--space-8);
  padding-bottom: var(--space-6);
  border-bottom: 1px solid var(--border-hairline);
}

.article-h1 {
  font-size: 2.2rem;
  font-weight: 700;
  letter-spacing: -0.025em;
  line-height: 1.25;
  color: var(--text-navy-950);
  margin-bottom: var(--space-4);
}

.article-content {
  font-size: 1.02rem;
  line-height: 1.8;
  color: var(--text-navy-900);
}

.article-content h2 {
  font-size: 1.5rem;
  margin-top: var(--space-10);
  margin-bottom: var(--space-4);
  padding-bottom: 0.5rem;
  border-bottom: 1px solid var(--border-hairline);
}

.article-content h3 {
  font-size: 1.2rem;
  margin-top: var(--space-6);
  margin-bottom: var(--space-3);
}

.article-content p {
  margin-bottom: var(--space-4);
  color: var(--text-navy-800);
}

.article-content ul, .article-content ol {
  margin-bottom: var(--space-5);
  padding-left: 1.25rem;
}

.article-content li {
  margin-bottom: 0.4rem;
  list-style: disc;
  color: var(--text-navy-800);
}

.article-content blockquote {
  padding: var(--space-4) var(--space-5);
  background-color: var(--bg-subtle);
  border-left: 3px solid var(--accent-navy);
  margin: var(--space-6) 0;
  font-size: 0.95rem;
  color: var(--text-slate-600);
}

.article-content table {
  width: 100%;
  border-collapse: collapse;
  margin: var(--space-6) 0;
  font-size: 0.88rem;
}

.article-content th, .article-content td {
  padding: 0.65rem 0.85rem;
  border: 1px solid var(--border-hairline);
  text-align: left;
}

.article-content th {
  background-color: var(--bg-subtle);
  font-weight: 600;
}

.article-related-box {
  margin-top: var(--space-12);
  padding: var(--space-6);
  background-color: var(--bg-subtle);
  border: 1px solid var(--border-hairline);
  border-radius: var(--radius-md);
}

.article-related-title {
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: var(--space-3);
  color: var(--text-navy-950);
}

/* Mobile & Tablet Responsive Queries */
@media (max-width: 1024px) {
  .hero-grid {
    grid-template-columns: 1fr;
    gap: var(--space-8);
  }
  
  .metrics-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .node-spec-grid {
    grid-template-columns: 1fr;
  }
  
  .plans-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .articles-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .reviews-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: var(--space-8);
  }
}

@media (max-width: 768px) {
  html {
    font-size: 14px;
  }
  
  .section {
    padding-top: var(--space-10);
    padding-bottom: var(--space-10);
  }
  
  .nav-links {
    display: none;
    position: absolute;
    top: 62px;
    left: 0;
    right: 0;
    background-color: #ffffff;
    border-bottom: 1px solid var(--border-hairline);
    padding: var(--space-4) var(--space-6);
    flex-direction: column;
    align-items: flex-start;
    gap: 1rem;
    box-shadow: 0 4px 12px rgba(0,0,0,0.06);
  }
  
  .nav-links.active {
    display: flex;
  }
  
  .mobile-menu-toggle {
    display: block;
  }
  
  .hero-title {
    font-size: 2rem;
  }
  
  .metrics-grid {
    grid-template-columns: 1fr;
  }
  
  .matrix-container {
    grid-template-columns: 1fr;
  }
  
  .plans-grid {
    grid-template-columns: 1fr;
  }
  
  .articles-grid {
    grid-template-columns: 1fr;
  }
  
  .reviews-grid {
    grid-template-columns: 1fr;
  }
  
  .footer-grid {
    grid-template-columns: 1fr;
    gap: var(--space-6);
  }
  
  .footer-bottom-bar {
    flex-direction: column;
    gap: 0.75rem;
    text-align: center;
  }
}

/* Reduced Motion Preference */
@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;
  }
}