/* ==========================================================================
   轻语机场 (qingyuyunjc.homes) — Art Deco 黄金时代 Design System
   ========================================================================== */

:root {
  --bg-deep: #090e1a;
  --bg-navy: #0e1628;
  --bg-card: #121c33;
  --bg-card-hover: #172340;
  --bg-emerald-card: #081814;
  --gold-bright: #f5c438;
  --gold-primary: #d9a426;
  --gold-muted: rgba(217, 164, 38, 0.32);
  --gold-glow: rgba(245, 196, 56, 0.18);
  --emerald-bright: #22c55e;
  --emerald-accent: #10b981;
  --emerald-glow: rgba(16, 185, 129, 0.2);
  --cyan-badge: #0ea5e9;
  --text-primary: #f3f4f6;
  --text-secondary: #b6c2d6;
  --text-muted: #7c8ba3;
  --border-gold: rgba(217, 164, 38, 0.45);
  --border-subtle: rgba(182, 194, 214, 0.12);
  --font-display: "Cinzel", "Noto Serif SC", "Songti SC", Georgia, serif;
  --font-sans: "Inter", "Noto Sans SC", "PingFang SC", "Microsoft YaHei", system-ui, -apple-system, sans-serif;
  --font-mono: "JetBrains Mono", "Fira Code", Consolas, monospace;
  --radius-sm: 2px;
  --radius-md: 6px;
  --transition: 0.28s cubic-bezier(0.22, 1, 0.36, 1);
}

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

html {
  scroll-behavior: smooth;
  font-size: 16px;
  background-color: var(--bg-deep);
  color: var(--text-primary);
}

body {
  font-family: var(--font-sans);
  line-height: 1.75;
  background-color: var(--bg-deep);
  color: var(--text-primary);
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

/* Art Deco Sunburst Background Layer */
.deco-sunburst-bg {
  position: fixed;
  inset: 0;
  z-index: -2;
  pointer-events: none;
  background:
    radial-gradient(circle at 50% 22%, rgba(217, 164, 38, 0.08) 0%, transparent 55%),
    repeating-conic-gradient(
      from 0deg at 50% 24%,
      rgba(217, 164, 38, 0.025) 0deg 1.5deg,
      transparent 1.5deg 15deg
    ),
    linear-gradient(180deg, #090e1a 0%, #0d1526 50%, #080c16 100%);
}

.deco-grid-overlay {
  position: fixed;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  background-image:
    linear-gradient(rgba(217, 164, 38, 0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(217, 164, 38, 0.03) 1px, transparent 1px);
  background-size: 64px 64px;
  mask-image: radial-gradient(ellipse at center, black 30%, transparent 85%);
}

a {
  color: var(--gold-bright);
  text-decoration: none;
  transition: color var(--transition), opacity var(--transition);
}

a:hover {
  color: #ffe082;
}

.container {
  width: 100%;
  max-width: 1220px;
  margin: 0 auto;
  padding: 0 24px;
}

/* Top Progress Bar for Articles */
.read-progress {
  position: fixed;
  top: 0;
  left: 0;
  height: 3px;
  width: 0%;
  background: linear-gradient(90deg, var(--gold-primary), var(--gold-bright), var(--emerald-bright));
  z-index: 1000;
  transition: width 0.1s linear;
}

/* Header & Navigation */
.site-header {
  position: sticky;
  top: 0;
  z-index: 900;
  background: rgba(9, 14, 26, 0.9);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--border-gold);
}

.site-header::after {
  content: "";
  display: block;
  height: 3px;
  background: repeating-linear-gradient(
    90deg,
    var(--gold-primary) 0px,
    var(--gold-primary) 28px,
    var(--bg-navy) 28px,
    var(--bg-navy) 56px
  );
  opacity: 0.75;
}

.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 74px;
  gap: 20px;
}

.brand-logo {
  display: flex;
  align-items: center;
  gap: 12px;
  color: var(--text-primary);
  font-family: var(--font-display);
  letter-spacing: 0.08em;
}

.brand-emblem {
  width: 38px;
  height: 38px;
  border: 2px solid var(--gold-bright);
  display: grid;
  place-items: center;
  position: relative;
  transform: rotate(45deg);
  background: rgba(217, 164, 38, 0.08);
  flex-shrink: 0;
}

.brand-emblem span {
  transform: rotate(-45deg);
  font-weight: 700;
  font-size: 1rem;
  color: var(--gold-bright);
}

.brand-text strong {
  display: block;
  font-size: 1.12rem;
  color: var(--gold-bright);
  line-height: 1.2;
}

.brand-text small {
  display: block;
  font-size: 0.7rem;
  color: var(--text-muted);
  letter-spacing: 0.18em;
  text-transform: uppercase;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 8px;
  list-style: none;
}

.nav-links a {
  color: var(--text-secondary);
  font-size: 0.92rem;
  font-weight: 500;
  padding: 8px 14px;
  border: 1px solid transparent;
  transition: all var(--transition);
  white-space: nowrap;
}

.nav-links a:hover,
.nav-links a.active {
  color: var(--gold-bright);
  border-color: var(--gold-muted);
  background: rgba(217, 164, 38, 0.06);
}

.nav-cta {
  background: linear-gradient(135deg, var(--gold-primary), var(--gold-bright));
  color: #090e1a !important;
  font-weight: 700 !important;
  border: 1px solid var(--gold-bright) !important;
  padding: 9px 18px !important;
  letter-spacing: 0.05em;
  box-shadow: 0 0 18px var(--gold-glow);
}

.nav-cta:hover {
  transform: translateY(-1px);
  box-shadow: 0 0 26px rgba(245, 196, 56, 0.35);
}

.mobile-toggle {
  display: none;
  background: transparent;
  border: 1px solid var(--border-gold);
  color: var(--gold-bright);
  padding: 8px 12px;
  cursor: pointer;
  font-size: 1.1rem;
}

/* Art Deco Framed Hero */
.hero-section {
  padding: 76px 0 64px;
  position: relative;
}

.deco-hero-frame {
  position: relative;
  max-width: 960px;
  margin: 0 auto;
  padding: 56px 48px;
  background: linear-gradient(160deg, rgba(18, 28, 51, 0.92), rgba(10, 16, 30, 0.96));
  border: 1px solid var(--border-gold);
  text-align: center;
  box-shadow: 0 24px 60px rgba(0, 0, 0, 0.55), inset 0 0 40px rgba(217, 164, 38, 0.04);
}

/* Four Art Deco Corner L-Brackets */
.deco-corner {
  position: absolute;
  width: 24px;
  height: 24px;
  border-color: var(--gold-bright);
  border-style: solid;
  pointer-events: none;
}

.deco-corner.tl { top: -2px; left: -2px; border-width: 3px 0 0 3px; }
.deco-corner.tr { top: -2px; right: -2px; border-width: 3px 3px 0 0; }
.deco-corner.bl { bottom: -2px; left: -2px; border-width: 0 0 3px 3px; }
.deco-corner.br { bottom: -2px; right: -2px; border-width: 0 3px 3px 0; }

.hero-kicker {
  font-family: var(--font-display);
  font-size: 0.85rem;
  letter-spacing: 0.35em;
  color: var(--gold-bright);
  text-transform: uppercase;
  margin-bottom: 12px;
}

.hero-divider {
  width: 160px;
  height: 1px;
  margin: 14px auto 22px;
  background: linear-gradient(90deg, transparent, var(--gold-bright), transparent);
  position: relative;
}

.hero-divider::after {
  content: "◆";
  position: absolute;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);
  color: var(--gold-bright);
  font-size: 0.7rem;
  background: var(--bg-navy);
  padding: 0 8px;
}

.hero-title {
  font-family: var(--font-display);
  font-size: clamp(2rem, 4.2vw, 3.1rem);
  font-weight: 700;
  letter-spacing: 0.06em;
  color: #fff;
  line-height: 1.28;
  margin-bottom: 18px;
}

.hero-title span {
  color: var(--gold-bright);
}

.hero-subtitle {
  max-width: 720px;
  margin: 0 auto 30px;
  color: var(--text-secondary);
  font-size: 1.04rem;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 16px;
  margin-bottom: 30px;
}

.btn-deco {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 13px 30px;
  font-size: 0.96rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  border: 1px solid var(--gold-bright);
  cursor: pointer;
  transition: all var(--transition);
}

.btn-deco-primary {
  background: linear-gradient(135deg, var(--gold-primary), var(--gold-bright));
  color: #090e1a;
  box-shadow: 0 0 24px var(--gold-glow);
}

.btn-deco-primary:hover {
  color: #090e1a;
  transform: translateY(-2px);
  box-shadow: 0 6px 32px rgba(245, 196, 56, 0.35);
}

.btn-deco-outline {
  background: rgba(14, 22, 40, 0.8);
  color: var(--gold-bright);
}

.btn-deco-outline:hover {
  background: rgba(217, 164, 38, 0.14);
}

/* Telemetry Strip & Keyword Tags */
.telemetry-strip {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 14px;
  border-top: 1px solid var(--border-subtle);
  padding-top: 24px;
  margin-top: 12px;
}

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

.telemetry-value {
  font-family: var(--font-mono);
  font-size: 1.22rem;
  font-weight: 700;
  color: var(--gold-bright);
}

.telemetry-label {
  font-size: 0.78rem;
  color: var(--text-muted);
}

.keyword-ribbon {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 10px;
  margin-top: 28px;
}

.kw-pill {
  font-size: 0.8rem;
  padding: 5px 12px;
  border: 1px solid var(--gold-muted);
  background: rgba(18, 28, 51, 0.75);
  color: var(--text-secondary);
  letter-spacing: 0.04em;
  transition: all var(--transition);
}

.kw-pill:hover {
  border-color: var(--gold-bright);
  color: var(--gold-bright);
  transform: translateY(-1px);
}

/* Section Headers */
.section-block {
  padding: 76px 0;
  position: relative;
}

.section-header {
  text-align: center;
  margin-bottom: 48px;
}

.section-eyebrow {
  font-family: var(--font-display);
  font-size: 0.78rem;
  letter-spacing: 0.3em;
  color: var(--gold-bright);
  text-transform: uppercase;
  margin-bottom: 10px;
}

.section-title {
  font-family: var(--font-display);
  font-size: clamp(1.6rem, 3vw, 2.25rem);
  color: #fff;
  margin-bottom: 12px;
}

.section-desc {
  max-width: 680px;
  margin: 0 auto;
  color: var(--text-secondary);
  font-size: 0.96rem;
}

/* Advantages Grid */
.adv-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 22px;
}

.adv-card {
  position: relative;
  padding: 28px 24px;
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  transition: all var(--transition);
}

.adv-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 0%;
  height: 2px;
  background: linear-gradient(90deg, var(--gold-bright), var(--emerald-bright));
  transition: width 0.4s ease;
}

.adv-card:hover {
  border-color: var(--border-gold);
  background: var(--bg-card-hover);
  transform: translateY(-3px);
}

.adv-card:hover::before {
  width: 100%;
}

.adv-tag {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--gold-bright);
  border: 1px solid var(--gold-muted);
  padding: 2px 8px;
  margin-bottom: 12px;
}

.adv-card h3 {
  font-size: 1.12rem;
  color: #fff;
  margin-bottom: 10px;
}

.adv-card p {
  font-size: 0.9rem;
  color: var(--text-secondary);
}

/* Pricing Section (Image 2 Layout + Art Deco Integration) */
.pricing-section {
  background: radial-gradient(ellipse at top, rgba(16, 185, 129, 0.06), transparent 65%);
}

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

.plan-card {
  position: relative;
  display: flex;
  flex-direction: column;
  padding: 32px 28px;
  background: linear-gradient(180deg, #0b1917 0%, #071110 100%);
  border: 1px solid rgba(34, 197, 94, 0.22);
  border-radius: 10px;
  transition: all var(--transition);
}

.plan-card:hover {
  transform: translateY(-4px);
  border-color: rgba(34, 197, 94, 0.55);
  box-shadow: 0 18px 44px rgba(0, 0, 0, 0.45);
}

.plan-card.featured {
  border-color: #10b981;
  background: linear-gradient(180deg, #0d241f 0%, #081513 100%);
  box-shadow: 0 0 36px rgba(16, 185, 129, 0.16);
}

.plan-badge {
  position: absolute;
  top: 22px;
  right: 22px;
  background: linear-gradient(135deg, #0284c7, #0ea5e9);
  color: #fff;
  font-size: 0.74rem;
  font-weight: 700;
  padding: 4px 12px;
  border-radius: 999px;
}

.plan-code {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.14em;
  color: var(--text-muted);
  margin-bottom: 6px;
}

.plan-name {
  font-size: 1.5rem;
  font-weight: 700;
  color: #fff;
  margin-bottom: 6px;
}

.plan-desc {
  font-size: 0.86rem;
  color: var(--text-muted);
  padding-bottom: 20px;
  border-bottom: 1px dashed rgba(255, 255, 255, 0.1);
  margin-bottom: 22px;
}

.plan-features {
  list-style: none;
  margin-bottom: 28px;
  flex: 1;
}

.plan-features li {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 0.94rem;
  color: var(--text-secondary);
  margin-bottom: 12px;
}

.plan-features li::before {
  content: "✓";
  color: var(--emerald-bright);
  font-weight: 700;
}

.plan-price {
  margin-bottom: 22px;
  display: flex;
  align-items: baseline;
  gap: 4px;
}

.plan-currency {
  font-size: 1.1rem;
  color: var(--text-secondary);
  align-self: flex-start;
  margin-top: 6px;
}

.plan-amount {
  font-size: 2.3rem;
  font-weight: 800;
  color: #fff;
  line-height: 1;
}

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

.plan-btn {
  display: block;
  text-align: center;
  padding: 13px 20px;
  border-radius: 6px;
  font-weight: 700;
  font-size: 0.94rem;
  background: rgba(16, 185, 129, 0.12);
  border: 1px solid rgba(16, 185, 129, 0.35);
  color: #e2fbe8;
  transition: all var(--transition);
}

.plan-btn:hover {
  background: rgba(16, 185, 129, 0.25);
  color: #fff;
}

.plan-card.featured .plan-btn {
  background: linear-gradient(90deg, #10b981, #34d399);
  color: #04130f;
  border-color: #34d399;
}

.plan-card.featured .plan-btn:hover {
  box-shadow: 0 0 24px rgba(52, 211, 153, 0.45);
}

.pricing-footnote {
  margin-top: 26px;
  padding: 18px 24px;
  border: 1px solid var(--border-gold);
  background: rgba(18, 28, 51, 0.7);
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  font-size: 0.9rem;
  color: var(--text-secondary);
}

/* Dynamic Article Showcase Section */
.article-toolbar {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  margin-bottom: 30px;
  padding: 16px 20px;
  background: var(--bg-card);
  border: 1px solid var(--border-gold);
}

.filter-pills {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.filter-pill {
  background: transparent;
  border: 1px solid var(--border-subtle);
  color: var(--text-secondary);
  padding: 6px 14px;
  font-size: 0.84rem;
  cursor: pointer;
  transition: all var(--transition);
}

.filter-pill.active,
.filter-pill:hover {
  border-color: var(--gold-bright);
  color: var(--gold-bright);
  background: rgba(217, 164, 38, 0.1);
}

.live-pulse-indicator {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--emerald-bright);
}

.pulse-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--emerald-bright);
  box-shadow: 0 0 0 rgba(34, 197, 94, 0.7);
  animation: pulseRing 2s infinite;
}

@keyframes pulseRing {
  0% { box-shadow: 0 0 0 0 rgba(34, 197, 94, 0.7); }
  70% { box-shadow: 0 0 0 10px rgba(34, 197, 94, 0); }
  100% { box-shadow: 0 0 0 0 rgba(34, 197, 94, 0); }
}

.articles-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 22px;
}

.article-card {
  position: relative;
  display: flex;
  flex-direction: column;
  padding: 24px;
  background: linear-gradient(155deg, rgba(18, 28, 51, 0.95), rgba(11, 17, 32, 0.98));
  border: 1px solid var(--border-subtle);
  overflow: hidden;
  transition: transform var(--transition), border-color var(--transition), box-shadow var(--transition);
}

/* Dynamic Art Deco Scan Shimmer on Hover */
.article-card::after {
  content: "";
  position: absolute;
  top: -100%;
  left: -60%;
  width: 60%;
  height: 300%;
  background: linear-gradient(
    90deg,
    transparent,
    rgba(245, 196, 56, 0.08),
    transparent
  );
  transform: rotate(25deg);
  transition: left 0.65s ease;
  pointer-events: none;
}

.article-card:hover {
  transform: translateY(-5px);
  border-color: var(--gold-bright);
  box-shadow: 0 14px 36px rgba(0, 0, 0, 0.45), 0 0 20px rgba(217, 164, 38, 0.1);
}

.article-card:hover::after {
  left: 140%;
}

/* Highlighted Card #10 (Flagship Deep Technical Analysis) */
.article-card.is-flagship {
  border-color: var(--gold-bright);
  background: linear-gradient(155deg, rgba(28, 38, 66, 0.98), rgba(14, 21, 38, 0.98));
  box-shadow: 0 0 28px rgba(217, 164, 38, 0.14);
}

.article-card-meta {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 8px;
  margin-bottom: 12px;
  font-size: 0.76rem;
}

.article-cat {
  color: var(--gold-bright);
  border: 1px solid var(--gold-muted);
  padding: 2px 8px;
  font-family: var(--font-mono);
}

.article-flagship-badge {
  background: linear-gradient(135deg, var(--gold-primary), var(--gold-bright));
  color: #090e1a;
  font-weight: 700;
  padding: 2px 8px;
  font-size: 0.72rem;
}

.article-card h3 {
  font-size: 1.06rem;
  line-height: 1.45;
  color: #fff;
  margin-bottom: 10px;
}

.article-card h3 a {
  color: #fff;
}

.article-card h3 a:hover {
  color: var(--gold-bright);
}

.article-excerpt {
  font-size: 0.88rem;
  color: var(--text-secondary);
  margin-bottom: 18px;
  flex: 1;
}

.article-card-footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: 14px;
  border-top: 1px solid var(--border-subtle);
  font-size: 0.78rem;
  color: var(--text-muted);
}

.article-read-more {
  color: var(--gold-bright);
  font-weight: 600;
}

/* FAQ 50-Item Interactive Section */
.faq-controls {
  display: flex;
  flex-direction: column;
  gap: 16px;
  margin-bottom: 28px;
}

.faq-search-box {
  width: 100%;
  padding: 14px 18px;
  background: var(--bg-card);
  border: 1px solid var(--border-gold);
  color: var(--text-primary);
  font-size: 0.96rem;
  outline: none;
}

.faq-search-box:focus {
  box-shadow: 0 0 18px var(--gold-glow);
}

.faq-list {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 14px;
}

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

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

.faq-item summary {
  list-style: none;
  cursor: pointer;
  padding: 16px 20px;
  font-weight: 600;
  font-size: 0.94rem;
  color: #fff;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
}

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

.faq-item summary::after {
  content: "+";
  color: var(--gold-bright);
  font-size: 1.2rem;
  font-weight: 400;
  flex-shrink: 0;
}

.faq-item[open] summary::after {
  content: "−";
}

.faq-answer {
  padding: 0 20px 18px;
  font-size: 0.88rem;
  color: var(--text-secondary);
  border-top: 1px solid var(--border-subtle);
  padding-top: 12px;
}

/* Single Article Page Typography */
.article-layout {
  max-width: 920px;
  margin: 0 auto;
  padding: 48px 24px 80px;
}

.breadcrumb {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  font-size: 0.84rem;
  color: var(--text-muted);
  margin-bottom: 24px;
}

.article-shell {
  position: relative;
  background: rgba(14, 22, 40, 0.92);
  border: 1px solid var(--border-gold);
  padding: 44px 48px;
}

.article-header {
  border-bottom: 1px solid var(--border-gold);
  padding-bottom: 24px;
  margin-bottom: 32px;
}

.article-header h1 {
  font-size: clamp(1.55rem, 3vw, 2.15rem);
  line-height: 1.35;
  color: #fff;
  margin-bottom: 14px;
}

.article-meta-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 18px;
  font-size: 0.84rem;
  color: var(--text-muted);
}

.article-body h2 {
  font-size: 1.36rem;
  color: var(--gold-bright);
  margin: 36px 0 14px;
  padding-left: 14px;
  border-left: 3px solid var(--gold-bright);
}

.article-body h3 {
  font-size: 1.12rem;
  color: #fff;
  margin: 24px 0 10px;
}

.article-body p {
  margin-bottom: 16px;
  color: var(--text-secondary);
  font-size: 1.01rem;
  text-align: justify;
}

.article-body table {
  width: 100%;
  border-collapse: collapse;
  margin: 24px 0;
  font-size: 0.9rem;
  background: rgba(9, 14, 26, 0.8);
}

.article-body th,
.article-body td {
  border: 1px solid var(--border-gold);
  padding: 12px 14px;
  text-align: left;
}

.article-body th {
  background: rgba(217, 164, 38, 0.14);
  color: var(--gold-bright);
  font-weight: 600;
}

.article-body td {
  color: var(--text-secondary);
}

.code-block-wrap {
  position: relative;
  margin: 22px 0;
  border: 1px solid var(--border-gold);
  background: #070b14;
}

.code-block-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 8px 14px;
  background: rgba(217, 164, 38, 0.1);
  border-bottom: 1px solid var(--border-gold);
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--gold-bright);
}

.copy-code-btn {
  background: transparent;
  border: 1px solid var(--gold-muted);
  color: var(--gold-bright);
  padding: 2px 10px;
  font-size: 0.74rem;
  cursor: pointer;
}

.article-body pre {
  padding: 16px;
  overflow-x: auto;
  font-family: var(--font-mono);
  font-size: 0.85rem;
  line-height: 1.6;
  color: #d1e3ff;
}

/* Article Natural Unordered FAQ & Footer Stats */
.article-faq-section {
  margin-top: 42px;
  padding-top: 28px;
  border-top: 1px solid var(--border-gold);
}

.article-faq-section h2 {
  margin-top: 0;
}

.article-qa-item {
  margin-bottom: 20px;
  padding: 18px 20px;
  background: rgba(9, 14, 26, 0.65);
  border: 1px solid var(--border-subtle);
}

.article-qa-q {
  font-weight: 700;
  color: #fff;
  margin-bottom: 8px;
}

.article-qa-a {
  color: var(--text-secondary);
  font-size: 0.94rem;
  margin-bottom: 0 !important;
}

.article-stats-footer {
  margin-top: 32px;
  padding: 18px 22px;
  background: rgba(217, 164, 38, 0.06);
  border: 1px solid var(--border-gold);
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 12px;
  font-size: 0.84rem;
  color: var(--text-secondary);
}

.article-nav-links {
  margin-top: 28px;
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
}

.article-nav-card {
  padding: 16px 18px;
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  display: block;
}

.article-nav-card:hover {
  border-color: var(--gold-bright);
}

.article-nav-card small {
  display: block;
  color: var(--text-muted);
  margin-bottom: 4px;
}

.related-articles-box {
  margin-top: 32px;
  padding: 24px;
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
}

.related-articles-box h3 {
  color: var(--gold-bright);
  margin-bottom: 14px;
}

.related-list {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 14px;
}

.related-item {
  padding: 14px;
  border: 1px solid var(--border-subtle);
  background: rgba(9, 14, 26, 0.55);
  font-size: 0.88rem;
}

/* Footer */
.site-footer {
  border-top: 1px solid var(--border-gold);
  background: #060a14;
  padding: 52px 0 32px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr;
  gap: 32px;
  margin-bottom: 32px;
}

.footer-col h4 {
  color: var(--gold-bright);
  font-size: 0.96rem;
  margin-bottom: 14px;
  letter-spacing: 0.06em;
}

.footer-col p,
.footer-col li {
  font-size: 0.86rem;
  color: var(--text-muted);
  list-style: none;
  margin-bottom: 8px;
}

.footer-bottom {
  padding-top: 20px;
  border-top: 1px solid var(--border-subtle);
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 12px;
  font-size: 0.82rem;
  color: var(--text-muted);
}

/* Responsive */
@media (max-width: 980px) {
  .adv-grid,
  .pricing-grid,
  .articles-grid,
  .related-list,
  .footer-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .telemetry-strip {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 720px) {
  .nav-links {
    display: none;
    position: absolute;
    top: 74px;
    left: 0;
    right: 0;
    flex-direction: column;
    background: rgba(9, 14, 26, 0.98);
    border-bottom: 1px solid var(--border-gold);
    padding: 16px 24px;
  }
  .nav-links.open {
    display: flex;
  }
  .mobile-toggle {
    display: inline-block;
  }
  .adv-grid,
  .pricing-grid,
  .articles-grid,
  .faq-list,
  .article-nav-links,
  .related-list,
  .footer-grid {
    grid-template-columns: 1fr;
  }
  .deco-hero-frame,
  .article-shell {
    padding: 30px 20px;
  }
}