/* ==========================================================================
   SkyLinX 机场官网 (SkyLinXjc.homes) — Soft Neo-Brutalism & Boarding Pass UI
   ========================================================================== */

:root {
  --bg-base: #fbf8ff;
  --bg-radial: radial-gradient(circle at 12% 10%, #f3e8ff 0%, transparent 45%),
               radial-gradient(circle at 88% 18%, #fce7f3 0%, transparent 42%),
               radial-gradient(circle at 50% 80%, #ede9fe 0%, transparent 50%),
               #fbf8ff;
  --card-soft: linear-gradient(135deg, #efe8ff 0%, #fbf0f9 55%, #f5f0ff 100%);
  --card-white: rgba(255, 255, 255, 0.88);
  --card-dark: #0a0d18;
  --ink-primary: #1a1528;
  --ink-secondary: #524b69;
  --ink-muted: #7c7495;
  --purple-500: #8b5cf6;
  --purple-600: #7c3aed;
  --purple-700: #6d28d9;
  --blue-600: #2563eb;
  --pink-500: #ec4899;
  --emerald-500: #10b981;
  --amber-500: #f59e0b;

  /* Soft Neo-Brutalism borders & offset shadows (inspired by Fig 1) */
  --border-soft: 1.5px solid rgba(139, 92, 246, 0.28);
  --border-strong: 2px solid #2b2144;
  --shadow-soft-brutal: 5px 7px 0px rgba(154, 132, 194, 0.28);
  --shadow-soft-hover: 8px 11px 0px rgba(139, 92, 246, 0.32);
  --shadow-btn-purple: 0 5px 0 #5b21b6, 0 10px 24px rgba(139, 92, 246, 0.28);
  --shadow-btn-dark: 0 5px 0 #020617, 0 10px 22px rgba(15, 23, 42, 0.18);

  --radius-xl: 28px;
  --radius-lg: 22px;
  --radius-md: 16px;
  --radius-pill: 9999px;
  --transition: all 0.25s cubic-bezier(0.22, 1, 0.36, 1);
}

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

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  margin: 0;
  font-family: 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  color: var(--ink-primary);
  background: var(--bg-radial);
  background-attachment: fixed;
  line-height: 1.75;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

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

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

/* Dynamic Background Orbs & Particle Canvas */
.bg-canvas {
  position: fixed;
  inset: 0;
  z-index: -2;
  pointer-events: none;
}

.ambient-orb {
  position: fixed;
  border-radius: 50%;
  filter: blur(70px);
  opacity: 0.45;
  z-index: -1;
  pointer-events: none;
  animation: floatOrb 16s ease-in-out infinite alternate;
}

.ambient-orb.orb-1 {
  width: 380px;
  height: 380px;
  background: #ddd6fe;
  top: -80px;
  left: -90px;
}

.ambient-orb.orb-2 {
  width: 320px;
  height: 320px;
  background: #fbcfe8;
  top: 35%;
  right: -100px;
  animation-delay: -5s;
}

.ambient-orb.orb-3 {
  width: 300px;
  height: 300px;
  background: #e0e7ff;
  bottom: -80px;
  left: 25%;
  animation-delay: -10s;
}

@keyframes floatOrb {
  0% { transform: translate(0, 0) scale(1); }
  100% { transform: translate(35px, 25px) scale(1.08); }
}

/* Container */
.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 22px;
}

.container-narrow {
  width: 100%;
  max-width: 900px;
  margin: 0 auto;
  padding: 0 22px;
}

/* Reading Progress Bar (Articles) */
.reading-progress {
  position: fixed;
  top: 0;
  left: 0;
  height: 4px;
  width: 0%;
  background: linear-gradient(90deg, var(--purple-500), var(--pink-500));
  z-index: 1001;
  transition: width 0.1s linear;
}

/* Header & Navigation */
.site-header {
  position: sticky;
  top: 14px;
  z-index: 999;
  padding: 0 16px;
  margin-top: 14px;
}

.nav-shell {
  max-width: 1200px;
  margin: 0 auto;
  background: rgba(255, 255, 255, 0.84);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: var(--border-soft);
  border-radius: var(--radius-pill);
  box-shadow: 0 6px 0 rgba(167, 139, 250, 0.18), 0 12px 30px rgba(31, 20, 61, 0.06);
  padding: 10px 18px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

.brand-logo {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-weight: 800;
  font-size: 1.15rem;
  letter-spacing: -0.02em;
  color: var(--ink-primary);
}

.brand-mark {
  width: 36px;
  height: 36px;
  border-radius: 12px;
  background: linear-gradient(135deg, var(--purple-500), var(--purple-700));
  color: #fff;
  display: grid;
  place-items: center;
  font-weight: 900;
  font-size: 1rem;
  box-shadow: 3px 3px 0 rgba(43, 33, 68, 0.25);
  border: 1.5px solid rgba(255, 255, 255, 0.6);
}

.brand-sub {
  font-size: 0.72rem;
  font-weight: 600;
  color: var(--purple-600);
  background: #f3e8ff;
  padding: 2px 8px;
  border-radius: var(--radius-pill);
  border: 1px solid rgba(139, 92, 246, 0.25);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 6px;
  list-style: none;
  margin: 0;
  padding: 0;
}

.nav-links a {
  padding: 7px 14px;
  border-radius: var(--radius-pill);
  font-size: 0.92rem;
  font-weight: 600;
  color: var(--ink-secondary);
  transition: var(--transition);
}

.nav-links a:hover,
.nav-links a.active {
  color: var(--purple-700);
  background: #f3e8ff;
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 10px;
}

.mobile-toggle {
  display: none;
  background: #f3e8ff;
  border: var(--border-soft);
  border-radius: 12px;
  width: 40px;
  height: 40px;
  cursor: pointer;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
  color: var(--purple-700);
}

/* Soft Neo-Brutal Buttons (matching Fig 1 purple jelly button) */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-weight: 700;
  border-radius: var(--radius-pill);
  padding: 12px 26px;
  font-size: 0.96rem;
  cursor: pointer;
  transition: var(--transition);
  border: 1.5px solid rgba(255, 255, 255, 0.35);
  position: relative;
  white-space: nowrap;
}

.btn-purple {
  background: linear-gradient(180deg, #9f67ff 0%, #8338ec 100%);
  color: #ffffff;
  box-shadow: var(--shadow-btn-purple);
}

.btn-purple:hover {
  transform: translateY(-2px);
  box-shadow: 0 7px 0 #5b21b6, 0 14px 28px rgba(139, 92, 246, 0.36);
}

.btn-purple:active {
  transform: translateY(3px);
  box-shadow: 0 2px 0 #5b21b6;
}

.btn-soft {
  background: #ffffff;
  color: var(--ink-primary);
  border: var(--border-soft);
  box-shadow: 0 4px 0 rgba(167, 139, 250, 0.28);
}

.btn-soft:hover {
  transform: translateY(-2px);
  background: #faf5ff;
  box-shadow: 0 6px 0 rgba(139, 92, 246, 0.34);
}

.btn-sm {
  padding: 8px 18px;
  font-size: 0.86rem;
}

/* Soft Neo-Brutal Card (Direct evolution of Fig 1) */
.soft-card {
  background: var(--card-soft);
  border: var(--border-soft);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-soft-brutal);
  transition: var(--transition);
}

.soft-card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-soft-hover);
}

.soft-card-white {
  background: var(--card-white);
  backdrop-filter: blur(10px);
  border: var(--border-soft);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-soft-brutal);
  transition: var(--transition);
}

.soft-card-white:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-soft-hover);
}

/* Hero Section */
.hero {
  padding: 52px 0 40px;
}

.hero-card {
  padding: 54px 48px;
  position: relative;
  overflow: hidden;
  display: grid;
  grid-template-columns: 1.25fr 0.95fr;
  gap: 40px;
  align-items: center;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(255, 255, 255, 0.85);
  border: var(--border-soft);
  padding: 6px 14px;
  border-radius: var(--radius-pill);
  font-size: 0.84rem;
  font-weight: 700;
  color: var(--purple-700);
  box-shadow: 3px 3px 0 rgba(139, 92, 246, 0.18);
  margin-bottom: 18px;
}

.pulse-dot {
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: var(--emerald-500);
  box-shadow: 0 0 0 0 rgba(16, 185, 129, 0.6);
  animation: pulseDot 2s infinite;
}

@keyframes pulseDot {
  0% { box-shadow: 0 0 0 0 rgba(16, 185, 129, 0.65); }
  70% { box-shadow: 0 0 0 8px rgba(16, 185, 129, 0); }
  100% { box-shadow: 0 0 0 0 rgba(16, 185, 129, 0); }
}

.hero h1 {
  margin: 0 0 16px;
  font-size: clamp(2rem, 3.8vw, 3.1rem);
  line-height: 1.18;
  letter-spacing: -0.025em;
  color: var(--ink-primary);
}

.gradient-text {
  background: linear-gradient(120deg, #7c3aed 0%, #db2777 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.hero-lead {
  font-size: 1.06rem;
  color: var(--ink-secondary);
  margin: 0 0 24px;
  max-width: 600px;
}

.hero-pills {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 28px;
}

.pill-tag {
  background: rgba(255, 255, 255, 0.82);
  border: 1px solid rgba(139, 92, 246, 0.24);
  padding: 5px 12px;
  border-radius: var(--radius-pill);
  font-size: 0.82rem;
  font-weight: 700;
  color: var(--ink-primary);
}

.hero-cta-row {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  align-items: center;
}

/* Hero Dynamic Telemetry Widget */
.hero-visual {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.telemetry-panel {
  background: rgba(255, 255, 255, 0.92);
  border: var(--border-soft);
  border-radius: var(--radius-lg);
  padding: 22px;
  box-shadow: 5px 6px 0 rgba(139, 92, 246, 0.22);
}

.telemetry-head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 14px;
  font-size: 0.86rem;
  font-weight: 700;
  color: var(--ink-secondary);
}

.telemetry-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 12px;
}

.metric-box {
  background: #faf7ff;
  border: 1px solid rgba(139, 92, 246, 0.2);
  border-radius: 14px;
  padding: 12px 14px;
}

.metric-val {
  font-size: 1.45rem;
  font-weight: 800;
  color: var(--purple-700);
  line-height: 1.2;
}

.metric-label {
  font-size: 0.78rem;
  color: var(--ink-muted);
  margin-top: 2px;
}

.route-visualizer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  padding: 14px 16px;
  border-radius: 14px;
  background: #131122;
  color: #f8fafc;
  font-size: 0.82rem;
  font-weight: 700;
}

.route-line {
  flex: 1;
  height: 2px;
  border-top: 2px dashed rgba(167, 139, 250, 0.55);
  position: relative;
}

.route-plane {
  position: absolute;
  top: -11px;
  left: 0;
  color: #c084fc;
  animation: flyRoute 4s ease-in-out infinite;
}

@keyframes flyRoute {
  0% { left: 5%; opacity: 0.4; }
  50% { left: 82%; opacity: 1; }
  100% { left: 5%; opacity: 0.4; }
}

/* Section Headers */
.section {
  padding: 58px 0;
}

.section-header {
  text-align: center;
  max-width: 720px;
  margin: 0 auto 38px;
}

.section-kicker {
  display: inline-block;
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--purple-700);
  background: #f3e8ff;
  border: 1px solid rgba(139, 92, 246, 0.25);
  padding: 4px 12px;
  border-radius: var(--radius-pill);
  margin-bottom: 10px;
}

.section-title {
  margin: 0 0 10px;
  font-size: clamp(1.65rem, 2.8vw, 2.25rem);
  font-weight: 800;
  letter-spacing: -0.02em;
}

.section-desc {
  margin: 0;
  color: var(--ink-secondary);
  font-size: 1rem;
}

/* Node Status Section */
.node-toolbar {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  margin-bottom: 22px;
}

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

.filter-btn {
  background: rgba(255, 255, 255, 0.86);
  border: var(--border-soft);
  border-radius: var(--radius-pill);
  padding: 7px 15px;
  font-size: 0.86rem;
  font-weight: 700;
  color: var(--ink-secondary);
  cursor: pointer;
  transition: var(--transition);
}

.filter-btn.active,
.filter-btn:hover {
  background: var(--purple-600);
  color: #fff;
  border-color: var(--purple-700);
  box-shadow: 0 3px 0 #5b21b6;
}

.nodes-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(270px, 1fr));
  gap: 16px;
}

.node-card {
  padding: 18px 20px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.node-top {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 8px;
}

.node-name {
  font-weight: 800;
  font-size: 0.98rem;
  display: flex;
  align-items: center;
  gap: 8px;
}

.ping-badge {
  font-size: 0.78rem;
  font-weight: 800;
  padding: 3px 10px;
  border-radius: var(--radius-pill);
  background: #dcfce7;
  color: #166534;
  border: 1px solid #86efac;
}

.ping-badge.mid {
  background: #fef3c7;
  color: #92400e;
  border-color: #fde68a;
}

.node-meta {
  display: flex;
  justify-content: space-between;
  font-size: 0.8rem;
  color: var(--ink-muted);
}

.load-bar {
  height: 7px;
  background: #ede9fe;
  border-radius: var(--radius-pill);
  overflow: hidden;
}

.load-fill {
  height: 100%;
  border-radius: var(--radius-pill);
  background: linear-gradient(90deg, #8b5cf6, #ec4899);
  transition: width 0.5s ease;
}

.node-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.node-tag {
  font-size: 0.72rem;
  font-weight: 700;
  background: #f5f3ff;
  color: var(--purple-700);
  padding: 2px 8px;
  border-radius: 8px;
  border: 1px solid rgba(139, 92, 246, 0.2);
}

/* Advantages Grid */
.advantages-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

.adv-card {
  padding: 28px 24px;
}

.adv-icon {
  width: 48px;
  height: 48px;
  border-radius: 16px;
  background: #ffffff;
  border: var(--border-soft);
  box-shadow: 3px 3px 0 rgba(139, 92, 246, 0.25);
  display: grid;
  place-items: center;
  font-size: 1.45rem;
  margin-bottom: 16px;
}

.adv-card h3 {
  margin: 0 0 8px;
  font-size: 1.12rem;
  font-weight: 800;
}

.adv-card p {
  margin: 0;
  color: var(--ink-secondary);
  font-size: 0.92rem;
}

/* Boarding Pass Pricing Cards (Faithful to Fig 2 + Soft Neo-Brutalism accent) */
.promo-strip {
  max-width: 780px;
  margin: 0 auto 30px;
  padding: 12px 22px;
  background: rgba(255, 255, 255, 0.9);
  border: var(--border-soft);
  border-radius: var(--radius-pill);
  box-shadow: 4px 5px 0 rgba(139, 92, 246, 0.2);
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: 10px;
  font-size: 0.9rem;
  font-weight: 700;
}

.promo-code {
  background: #f3e8ff;
  color: var(--purple-700);
  padding: 3px 12px;
  border-radius: var(--radius-pill);
  border: 1px dashed var(--purple-500);
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
}

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

.boarding-card {
  background: #ffffff;
  border: 1.5px solid rgba(139, 92, 246, 0.25);
  border-radius: 26px;
  padding: 28px 26px 26px;
  box-shadow: 6px 8px 0 rgba(154, 132, 194, 0.26);
  display: flex;
  flex-direction: column;
  position: relative;
  transition: var(--transition);
}

.boarding-card:hover {
  transform: translateY(-5px);
  box-shadow: 8px 12px 0 rgba(139, 92, 246, 0.3);
}

.boarding-card.business {
  background: #090d16;
  color: #f8fafc;
  border: 2px solid #2b3556;
  box-shadow: 7px 9px 0 rgba(37, 99, 235, 0.34);
}

.boarding-card.business:hover {
  box-shadow: 10px 14px 0 rgba(37, 99, 235, 0.42);
}

.bp-route {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  color: #8b86a3;
  margin-bottom: 18px;
}

.bp-route-line {
  flex: 1;
  margin: 0 12px;
  border-top: 1.5px dashed rgba(139, 134, 163, 0.45);
  position: relative;
  height: 1px;
}

.bp-route-line::after {
  content: '✈';
  position: absolute;
  top: -10px;
  left: 50%;
  transform: translateX(-50%);
  font-size: 0.85rem;
  color: var(--ink-primary);
  background: #ffffff;
  padding: 0 6px;
}

.boarding-card.business .bp-route-line::after {
  color: #ffffff;
  background: #090d16;
}

.bp-tier {
  font-size: 0.74rem;
  font-weight: 800;
  letter-spacing: 0.14em;
  color: #2563eb;
  margin-bottom: 4px;
}

.boarding-card.business .bp-tier {
  color: #d97706;
}

.bp-title {
  margin: 0 0 14px;
  font-size: 1.5rem;
  font-weight: 800;
}

.bp-price {
  display: flex;
  align-items: baseline;
  gap: 6px;
  margin-bottom: 22px;
}

.bp-currency {
  font-size: 1.3rem;
  font-weight: 700;
}

.bp-amount {
  font-size: 3rem;
  font-weight: 800;
  line-height: 1;
  font-family: Georgia, 'Times New Roman', serif;
}

.bp-period {
  font-size: 0.9rem;
  color: var(--ink-muted);
}

.bp-specs {
  list-style: none;
  margin: 0 0 22px;
  padding: 0;
}

.bp-specs li {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 11px 0;
  border-top: 1px solid rgba(148, 163, 184, 0.22);
  font-size: 0.88rem;
}

.bp-specs .spec-k {
  color: var(--ink-muted);
}

.bp-specs .spec-v {
  font-weight: 700;
}

.bp-tear {
  position: relative;
  border-top: 2px dashed rgba(148, 163, 184, 0.4);
  margin: 6px -26px 18px;
  height: 1px;
}

.bp-tear::before,
.bp-tear::after {
  content: '';
  position: absolute;
  top: -11px;
  width: 20px;
  height: 20px;
  border-radius: 50%;
  background: #f5effe;
  border: 1.5px solid rgba(139, 92, 246, 0.2);
}

.bp-tear::before { left: -10px; }
.bp-tear::after { right: -10px; }

.boarding-card.business .bp-tear::before,
.boarding-card.business .bp-tear::after {
  border-color: rgba(37, 99, 235, 0.3);
}

/* Pure CSS Boarding Pass Barcode */
.bp-barcode {
  height: 36px;
  width: 100%;
  margin-bottom: 18px;
  opacity: 0.82;
  background-image: repeating-linear-gradient(
    90deg,
    currentColor 0px, currentColor 2px,
    transparent 2px, transparent 5px,
    currentColor 5px, currentColor 8px,
    transparent 8px, transparent 10px,
    currentColor 10px, currentColor 11px,
    transparent 11px, transparent 15px,
    currentColor 15px, currentColor 19px,
    transparent 19px, transparent 22px
  );
}

.bp-cta {
  width: 100%;
  padding: 13px 20px;
  border-radius: var(--radius-pill);
  font-weight: 800;
  font-size: 0.96rem;
  text-align: center;
  transition: var(--transition);
  margin-top: auto;
}

.bp-cta-dark {
  background: #0f172a;
  color: #ffffff;
  box-shadow: var(--shadow-btn-dark);
}

.bp-cta-dark:hover {
  transform: translateY(-2px);
  background: #1e293b;
}

.bp-cta-blue {
  background: linear-gradient(180deg, #3b82f6 0%, #1d4ed8 100%);
  color: #ffffff;
  box-shadow: 0 5px 0 #1e3a8a, 0 10px 25px rgba(37, 99, 235, 0.42);
}

.bp-cta-blue:hover {
  transform: translateY(-2px);
}

/* 50-Item FAQ Section */
.faq-controls {
  display: flex;
  flex-direction: column;
  gap: 14px;
  margin-bottom: 24px;
}

.faq-search-wrap {
  position: relative;
  max-width: 640px;
  width: 100%;
  margin: 0 auto;
}

.faq-search {
  width: 100%;
  padding: 14px 22px;
  border-radius: var(--radius-pill);
  border: var(--border-soft);
  background: rgba(255, 255, 255, 0.92);
  box-shadow: 4px 5px 0 rgba(139, 92, 246, 0.18);
  font-size: 0.96rem;
  color: var(--ink-primary);
  outline: none;
  transition: var(--transition);
}

.faq-search:focus {
  border-color: var(--purple-600);
  box-shadow: 5px 6px 0 rgba(139, 92, 246, 0.3);
}

.faq-toolbar-row {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
}

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

.faq-item {
  background: rgba(255, 255, 255, 0.9);
  border: var(--border-soft);
  border-radius: 18px;
  box-shadow: 3px 4px 0 rgba(154, 132, 194, 0.2);
  overflow: hidden;
  transition: var(--transition);
}

.faq-item[open] {
  background: linear-gradient(135deg, #f6f0ff 0%, #fff7fc 100%);
  box-shadow: 5px 6px 0 rgba(139, 92, 246, 0.25);
}

.faq-item summary {
  list-style: none;
  padding: 15px 18px;
  cursor: pointer;
  font-weight: 700;
  font-size: 0.94rem;
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 12px;
}

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

.faq-num {
  display: inline-grid;
  place-items: center;
  min-width: 24px;
  height: 24px;
  border-radius: 8px;
  background: #ede9fe;
  color: var(--purple-700);
  font-size: 0.75rem;
  font-weight: 800;
  margin-right: 6px;
}

.faq-chevron {
  color: var(--purple-600);
  font-weight: 800;
  transition: transform 0.2s ease;
}

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

.faq-body {
  padding: 0 18px 16px;
  font-size: 0.9rem;
  color: var(--ink-secondary);
  border-top: 1px dashed rgba(139, 92, 246, 0.2);
  padding-top: 12px;
}

/* Articles / Knowledge Base Cards */
.articles-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

.article-card {
  padding: 24px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.article-cat {
  display: inline-block;
  align-self: flex-start;
  font-size: 0.74rem;
  font-weight: 800;
  background: #f3e8ff;
  color: var(--purple-700);
  padding: 3px 10px;
  border-radius: var(--radius-pill);
  border: 1px solid rgba(139, 92, 246, 0.25);
}

.article-card h3 {
  margin: 0;
  font-size: 1.06rem;
  line-height: 1.42;
}

.article-card h3 a:hover {
  color: var(--purple-700);
}

.article-card p {
  margin: 0;
  font-size: 0.88rem;
  color: var(--ink-secondary);
  flex: 1;
}

.article-foot {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: 12px;
  border-top: 1px dashed rgba(139, 92, 246, 0.2);
  font-size: 0.82rem;
  color: var(--ink-muted);
}

.article-link {
  font-weight: 800;
  color: var(--purple-700);
}

/* Article Detail Page Styles */
.breadcrumb {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  align-items: center;
  font-size: 0.86rem;
  color: var(--ink-muted);
  margin: 28px 0 16px;
}

.breadcrumb a:hover {
  color: var(--purple-700);
}

.article-shell {
  padding: 38px 42px;
  margin-bottom: 36px;
}

.article-header h1 {
  font-size: clamp(1.65rem, 3vw, 2.3rem);
  line-height: 1.28;
  margin: 12px 0 14px;
}

.article-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  font-size: 0.85rem;
  color: var(--ink-muted);
  padding-bottom: 20px;
  border-bottom: 1.5px dashed rgba(139, 92, 246, 0.25);
  margin-bottom: 24px;
}

.geo-tldr {
  background: rgba(255, 255, 255, 0.86);
  border-left: 5px solid var(--purple-600);
  border-radius: 14px;
  padding: 18px 22px;
  margin-bottom: 26px;
  box-shadow: 3px 4px 0 rgba(139, 92, 246, 0.16);
}

.geo-tldr-title {
  font-weight: 800;
  color: var(--purple-700);
  margin-bottom: 6px;
  font-size: 0.94rem;
}

.article-content h2 {
  margin: 30px 0 12px;
  font-size: 1.38rem;
  color: var(--ink-primary);
  padding-bottom: 6px;
  border-bottom: 2px solid rgba(139, 92, 246, 0.18);
}

.article-content h3 {
  margin: 22px 0 10px;
  font-size: 1.12rem;
  color: var(--purple-700);
}

.article-content p {
  margin: 0 0 16px;
  color: #2f2844;
  font-size: 1.01rem;
}

.article-content ul,
.article-content ol {
  margin: 0 0 18px;
  padding-left: 22px;
  color: #2f2844;
}

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

.article-content a.inline-link {
  color: var(--purple-700);
  font-weight: 700;
  text-decoration: underline;
  text-decoration-style: dashed;
  text-underline-offset: 4px;
}

.data-table-wrap {
  overflow-x: auto;
  margin: 20px 0 24px;
  border-radius: 16px;
  border: var(--border-soft);
  background: #ffffff;
}

.data-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.9rem;
}

.data-table th,
.data-table td {
  padding: 12px 15px;
  text-align: left;
  border-bottom: 1px solid rgba(139, 92, 246, 0.14);
}

.data-table th {
  background: #f5f0ff;
  font-weight: 800;
  color: var(--purple-700);
}

.cta-banner {
  margin: 32px 0;
  padding: 26px 28px;
  border-radius: 22px;
  background: linear-gradient(135deg, #ede9fe 0%, #fce7f3 100%);
  border: var(--border-soft);
  box-shadow: 5px 6px 0 rgba(139, 92, 246, 0.25);
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: center;
  gap: 18px;
}

.article-faq-section {
  margin-top: 34px;
  padding-top: 26px;
  border-top: 2px dashed rgba(139, 92, 246, 0.25);
}

.article-faq-list {
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin-top: 16px;
}

.related-articles {
  margin-top: 34px;
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
}

.related-card {
  padding: 18px 20px;
  background: rgba(255, 255, 255, 0.88);
  border: var(--border-soft);
  border-radius: 16px;
  box-shadow: 3px 4px 0 rgba(139, 92, 246, 0.18);
  transition: var(--transition);
}

.related-card:hover {
  transform: translateY(-2px);
  box-shadow: 5px 6px 0 rgba(139, 92, 246, 0.28);
}

/* Footer */
.site-footer {
  margin-top: 64px;
  padding: 48px 0 32px;
  background: rgba(255, 255, 255, 0.82);
  border-top: var(--border-soft);
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1fr;
  gap: 28px;
  margin-bottom: 30px;
}

.footer-title {
  font-weight: 800;
  margin: 0 0 12px;
  font-size: 0.98rem;
}

.footer-links {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 8px;
  font-size: 0.88rem;
  color: var(--ink-secondary);
}

.footer-links a:hover {
  color: var(--purple-700);
}

.footer-bottom {
  padding-top: 20px;
  border-top: 1px dashed rgba(139, 92, 246, 0.25);
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 12px;
  font-size: 0.84rem;
  color: var(--ink-muted);
}

/* Scroll Reveal */
.reveal {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity 0.55s ease, transform 0.55s ease;
}

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

/* Responsive */
@media (max-width: 992px) {
  .hero-card {
    grid-template-columns: 1fr;
    padding: 36px 26px;
  }
  .advantages-grid,
  .pricing-grid,
  .articles-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .footer-grid {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 768px) {
  .nav-links {
    display: none;
    position: absolute;
    top: calc(100% + 10px);
    left: 16px;
    right: 16px;
    background: rgba(255, 255, 255, 0.97);
    border: var(--border-soft);
    border-radius: 22px;
    padding: 14px;
    flex-direction: column;
    align-items: stretch;
    box-shadow: var(--shadow-soft-brutal);
  }
  .nav-links.open {
    display: flex;
  }
  .mobile-toggle {
    display: inline-flex;
  }
  .advantages-grid,
  .pricing-grid,
  .articles-grid,
  .faq-grid,
  .related-articles,
  .footer-grid {
    grid-template-columns: 1fr;
  }
  .article-shell {
    padding: 24px 20px;
  }
}