/* ==========================================================================
   YFY VPN / 机场推荐与加速指南 - Core Stylesheet
   Palette:
     Warm White: #FCFBF8
     Ink Violet: #423B56
     Muted Apricot: #DEA987
     Pale Gray: #ECE9ED
   ========================================================================== */

:root {
  --bg-primary: #FCFBF8;
  --bg-card: #ECE9ED;
  --bg-card-hover: #E4E0E6;
  --bg-surface: #FFFFFF;
  --text-primary: #423B56;
  --text-secondary: #5E5673;
  --text-muted: #7E7693;
  --accent-apricot: #DEA987;
  --accent-apricot-hover: #CD926E;
  --accent-apricot-light: #F9EFE9;
  --border-color: #E2DFE6;
  --border-dark: #C9C4D0;
  --ink-dark: #2A243B;
  --shadow-sm: 0 2px 8px rgba(66, 59, 86, 0.05);
  --shadow-md: 0 6px 20px rgba(66, 59, 86, 0.08);
  --shadow-lg: 0 12px 32px rgba(66, 59, 86, 0.12);
  --radius-sm: 8px;
  --radius-md: 16px;
  --radius-lg: 24px;
  --radius-full: 9999px;
  --font-heading: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  --font-body: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
}

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

html {
  font-size: 16px;
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  background-color: var(--bg-primary);
  color: var(--text-primary);
  font-family: var(--font-body);
  font-size: 17px;
  line-height: 1.65;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  overflow-x: hidden;
}

/* Tabular Numerals for Dashboard & Numbers */
.tabular-nums, .num, .stat-value, .dashboard-val, .price-amount {
  font-variant-numeric: tabular-nums;
  font-feature-settings: "tnum";
}

/* Headings */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  color: var(--text-primary);
  font-weight: 700;
  line-height: 1.25;
  letter-spacing: -0.015em;
}

h1 {
  font-size: 35px;
  margin-bottom: 20px;
}

@media (min-width: 1024px) {
  h1 {
    font-size: 53px;
  }
}

h2 {
  font-size: 26px;
  margin-bottom: 16px;
}

@media (min-width: 768px) {
  h2 {
    font-size: 34px;
  }
}

h3 {
  font-size: 20px;
  margin-bottom: 12px;
}

@media (min-width: 768px) {
  h3 {
    font-size: 24px;
  }
}

p {
  margin-bottom: 16px;
  color: var(--text-secondary);
}

a {
  color: var(--text-primary);
  text-decoration: none;
  transition: color 0.2s ease, opacity 0.2s ease;
}

a:hover {
  color: var(--accent-apricot-hover);
}

a:focus-visible, button:focus-visible {
  outline: 2px solid var(--accent-apricot);
  outline-offset: 3px;
  border-radius: var(--radius-sm);
}

/* Container */
.container {
  width: 100%;
  max-width: 1240px;
  margin: 0 auto;
  padding: 0 20px;
}

@media (min-width: 768px) {
  .container {
    padding: 0 32px;
  }
}

/* Buttons & CTA */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 14px 28px;
  font-size: 16px;
  font-weight: 600;
  border-radius: var(--radius-full);
  transition: all 0.25s cubic-bezier(0.16, 1, 0.3, 1);
  cursor: pointer;
  border: 2px solid transparent;
  text-decoration: none;
  white-space: nowrap;
}

.btn-primary {
  background-color: var(--text-primary);
  color: #FFFFFF;
}

.btn-primary:hover {
  background-color: var(--ink-dark);
  color: var(--accent-apricot);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.btn-accent {
  background-color: var(--accent-apricot);
  color: var(--text-primary);
}

.btn-accent:hover {
  background-color: var(--accent-apricot-hover);
  color: #FFFFFF;
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.btn-outline {
  background-color: transparent;
  border-color: var(--text-primary);
  color: var(--text-primary);
}

.btn-outline:hover {
  background-color: var(--text-primary);
  color: #FFFFFF;
  transform: translateY(-2px);
}

/* Header Navigation */
.header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background-color: rgba(252, 251, 248, 0.92);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border-color);
  padding: 16px 0;
}

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

.logo {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 22px;
  font-weight: 700;
  color: var(--text-primary);
  letter-spacing: -0.02em;
}

.logo-icon {
  width: 38px;
  height: 38px;
  background: var(--text-primary);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--accent-apricot);
  font-weight: 800;
  font-size: 18px;
}

.nav-desktop {
  display: none;
}

@media (min-width: 1024px) {
  .nav-desktop {
    display: flex;
    align-items: center;
    gap: 32px;
  }
}

.nav-link {
  font-size: 16px;
  font-weight: 500;
  color: var(--text-secondary);
  position: relative;
  padding: 6px 0;
}

.nav-link:hover, .nav-link.active {
  color: var(--text-primary);
}

.nav-link.active::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 2px;
  background-color: var(--accent-apricot);
  border-radius: 2px;
}

.header-cta {
  display: none;
}

@media (min-width: 768px) {
  .header-cta {
    display: inline-flex;
  }
}

/* Mobile Menu Button */
.mobile-toggle {
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  width: 32px;
  height: 22px;
  background: transparent;
  border: none;
  cursor: pointer;
  padding: 0;
  z-index: 1100;
}

@media (min-width: 1024px) {
  .mobile-toggle {
    display: none;
  }
}

.mobile-toggle span {
  width: 100%;
  height: 3px;
  background-color: var(--text-primary);
  border-radius: 2px;
  transition: all 0.3s ease;
}

.mobile-toggle.active span:nth-child(1) {
  transform: translateY(9.5px) rotate(45deg);
}

.mobile-toggle.active span:nth-child(2) {
  opacity: 0;
}

.mobile-toggle.active span:nth-child(3) {
  transform: translateY(-9.5px) rotate(-45deg);
}

/* Mobile Drawer Nav */
.mobile-drawer {
  position: fixed;
  top: 0;
  right: -100%;
  width: 85%;
  max-width: 380px;
  height: 100vh;
  background-color: var(--bg-primary);
  z-index: 1050;
  padding: 90px 32px 40px;
  box-shadow: var(--shadow-lg);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  transition: right 0.35s cubic-bezier(0.16, 1, 0.3, 1);
  overflow-y: auto;
}

.mobile-drawer.active {
  right: 0;
}

.drawer-backdrop {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  background-color: rgba(42, 36, 59, 0.4);
  backdrop-filter: blur(4px);
  z-index: 1040;
  opacity: 0;
  visibility: hidden;
  transition: all 0.3s ease;
}

.drawer-backdrop.active {
  opacity: 1;
  visibility: visible;
}

.mobile-nav-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.mobile-nav-link {
  font-size: 18px;
  font-weight: 600;
  color: var(--text-primary);
  display: block;
  padding: 8px 0;
  border-bottom: 1px solid var(--border-color);
}

/* Hero Section */
.hero-section {
  padding: 48px 0 64px;
  overflow: hidden;
}

@media (min-width: 1024px) {
  .hero-section {
    padding: 80px 0 96px;
  }
}

.hero-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 48px;
  align-items: center;
}

@media (min-width: 1024px) {
  .hero-grid {
    grid-template-columns: 1.1fr 0.9fr;
    gap: 64px;
  }
}

.hero-tag {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 16px;
  background-color: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-full);
  font-size: 14px;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 20px;
}

.hero-tag-dot {
  width: 8px;
  height: 8px;
  background-color: var(--accent-apricot);
  border-radius: 50%;
}

.hero-intro {
  font-size: 18px;
  line-height: 1.7;
  color: var(--text-secondary);
  margin-bottom: 32px;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
}

/* Circular Index Dashboard Graphic */
.dashboard-container {
  position: relative;
  width: 100%;
  max-width: 440px;
  margin: 0 auto;
  aspect-ratio: 1 / 1;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 24px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  box-shadow: var(--shadow-md);
}

.dashboard-title {
  font-size: 14px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-muted);
  margin-bottom: 16px;
  text-align: center;
}

.circular-index-wrapper {
  position: relative;
  width: 100%;
  height: 100%;
  max-width: 320px;
  max-height: 320px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.circular-svg {
  width: 100%;
  height: 100%;
  transform: rotate(-90deg);
}

.circular-bg-ring {
  fill: none;
  stroke: var(--border-dark);
  stroke-width: 8;
  stroke-dasharray: 4 4;
}

.circular-segment {
  fill: none;
  stroke-width: 10;
  stroke-linecap: round;
  transition: stroke-dashoffset 0.5s ease;
}

.segment-hk { stroke: #423B56; }
.segment-jp { stroke: #DEA987; }
.segment-sg { stroke: #6B6282; }
.segment-us { stroke: #B58467; }

/* Orbit Dot Animation - Slow & smooth. NEVER animate text! */
.orbit-group {
  transform-origin: 160px 160px;
  animation: orbitRotate 24s linear infinite;
}

@keyframes orbitRotate {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }
}

@media (prefers-reduced-motion: reduce) {
  .orbit-group {
    animation: none !important;
  }
}

.orbit-dot {
  fill: var(--accent-apricot);
  filter: drop-shadow(0 0 4px rgba(222, 169, 135, 0.6));
}

/* Center Static Content Inside Circle */
.dashboard-center-info {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  text-align: center;
  width: 75%;
  pointer-events: none;
}

.dashboard-center-title {
  font-size: 13px;
  font-weight: 600;
  color: var(--text-muted);
  text-transform: uppercase;
}

.dashboard-center-brand {
  font-size: 22px;
  font-weight: 800;
  color: var(--text-primary);
  line-height: 1.2;
  margin: 4px 0;
}

.dashboard-center-badge {
  display: inline-block;
  font-size: 12px;
  font-weight: 600;
  padding: 3px 10px;
  background-color: var(--accent-apricot-light);
  color: var(--accent-apricot-hover);
  border-radius: var(--radius-full);
}

/* Region Labels Around Dashboard */
.region-tag-list {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
  width: 100%;
  margin-top: 16px;
}

.region-tag-item {
  background-color: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  padding: 8px 12px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 13px;
}

.region-tag-name {
  font-weight: 600;
  color: var(--text-primary);
  display: flex;
  align-items: center;
  gap: 6px;
}

.region-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  display: inline-block;
}

.region-desc {
  font-size: 12px;
  color: var(--text-muted);
}

/* Three Advantages Section - Radial labels with linear reading order */
.advantages-section {
  padding: 64px 0;
  background-color: var(--bg-surface);
  border-top: 1px solid var(--border-color);
  border-bottom: 1px solid var(--border-color);
}

.section-header {
  text-align: center;
  max-width: 720px;
  margin: 0 auto 48px;
}

.section-tag {
  display: inline-block;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--accent-apricot-hover);
  margin-bottom: 8px;
}

.section-title {
  margin-bottom: 16px;
}

.advantages-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 28px;
}

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

.advantage-card {
  background-color: var(--bg-primary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 32px 24px;
  position: relative;
  display: flex;
  flex-direction: column;
  transition: transform 0.25s ease, box-shadow 0.25s ease;
}

.advantage-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
}

/* Radial Badge Label */
.radial-label-badge {
  position: absolute;
  top: -18px;
  left: 24px;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background-color: var(--text-primary);
  color: var(--accent-apricot);
  font-size: 16px;
  font-weight: 800;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--shadow-sm);
  border: 2px solid var(--bg-primary);
}

.advantage-icon-wrapper {
  width: 48px;
  height: 48px;
  border-radius: 12px;
  background-color: var(--bg-card);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
  color: var(--text-primary);
}

.advantage-title {
  font-size: 20px;
  margin-bottom: 12px;
}

.advantage-desc {
  font-size: 15px;
  color: var(--text-secondary);
  line-height: 1.6;
  margin-bottom: 0;
}

/* Global Nodes Section */
.nodes-section {
  padding: 80px 0;
}

.node-selector {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 12px;
  margin-bottom: 40px;
}

.node-btn {
  padding: 10px 22px;
  border-radius: var(--radius-full);
  border: 1px solid var(--border-color);
  background-color: var(--bg-surface);
  color: var(--text-secondary);
  font-size: 15px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s ease;
}

.node-btn:hover {
  border-color: var(--text-primary);
  color: var(--text-primary);
}

.node-btn.active {
  background-color: var(--text-primary);
  color: #FFFFFF;
  border-color: var(--text-primary);
}

.nodes-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 20px;
}

@media (min-width: 768px) {
  .nodes-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1024px) {
  .nodes-grid {
    grid-template-columns: repeat(4, 1fr);
  }
}

.node-card {
  background-color: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 24px;
  transition: opacity 0.3s ease, transform 0.3s ease;
}

.node-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 16px;
}

.node-region-flag {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 18px;
  font-weight: 700;
}

.flag-badge {
  font-size: 22px;
}

.node-type-badge {
  font-size: 12px;
  font-weight: 600;
  padding: 4px 10px;
  border-radius: var(--radius-full);
  background-color: var(--bg-surface);
  color: var(--text-secondary);
  border: 1px solid var(--border-color);
}

.node-features-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 8px;
  font-size: 14px;
  color: var(--text-secondary);
}

.node-features-list li {
  display: flex;
  align-items: center;
  gap: 8px;
}

.node-features-list svg {
  color: var(--accent-apricot-hover);
  flex-shrink: 0;
}

/* AI & Streaming Use Cases Section */
.scenarios-section {
  padding: 80px 0;
  background-color: var(--bg-surface);
  border-top: 1px solid var(--border-color);
  border-bottom: 1px solid var(--border-color);
}

.scenario-panel-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 32px;
}

@media (min-width: 1024px) {
  .scenario-panel-grid {
    grid-template-columns: 1fr 1fr;
  }
}

.open-content-panel {
  background-color: var(--bg-primary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 36px 28px;
}

.panel-header {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-bottom: 24px;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--border-color);
}

.panel-icon-circle {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background-color: var(--text-primary);
  color: var(--accent-apricot);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
}

.panel-title {
  font-size: 22px;
  margin-bottom: 0;
}

.scenario-items-list {
  display: grid;
  grid-template-columns: 1fr;
  gap: 20px;
}

@media (min-width: 768px) {
  .scenario-items-list {
    grid-template-columns: 1fr 1fr;
  }
}

.scenario-item {
  background-color: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 18px;
}

.scenario-item-header {
  display: flex;
  align-items: center;
  gap: 8px;
  font-weight: 700;
  font-size: 16px;
  color: var(--text-primary);
  margin-bottom: 8px;
}

.scenario-item-desc {
  font-size: 14px;
  color: var(--text-secondary);
  margin-bottom: 0;
  line-height: 1.5;
}

/* Pricing Section - Aligned Rectangular Rows */
.pricing-section {
  padding: 80px 0;
}

.pricing-table-container {
  display: flex;
  flex-direction: column;
  gap: 20px;
  max-width: 980px;
  margin: 0 auto;
}

.pricing-row {
  background-color: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 24px 32px;
  display: grid;
  grid-template-columns: 1fr;
  gap: 20px;
  align-items: center;
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

@media (min-width: 768px) {
  .pricing-row {
    grid-template-columns: 2fr 1.5fr 1.5fr 1fr;
  }
}

.pricing-row.popular {
  border: 2px solid var(--text-primary);
  background-color: #FFFFFF;
  position: relative;
}

.popular-badge {
  position: absolute;
  top: -12px;
  right: 24px;
  background-color: var(--accent-apricot);
  color: var(--text-primary);
  font-size: 12px;
  font-weight: 700;
  padding: 2px 12px;
  border-radius: var(--radius-full);
}

.pricing-plan-name {
  font-size: 20px;
  font-weight: 700;
  color: var(--text-primary);
}

.pricing-plan-desc {
  font-size: 14px;
  color: var(--text-muted);
}

.pricing-amount-wrapper {
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.price-main {
  display: flex;
  align-items: baseline;
  gap: 2px;
}

.price-currency {
  font-size: 16px;
  font-weight: 700;
  color: var(--text-primary);
}

.price-val {
  font-size: 32px;
  font-weight: 800;
  color: var(--text-primary);
  line-height: 1;
  font-variant-numeric: tabular-nums;
  font-feature-settings: "tnum";
}

.price-period {
  font-size: 14px;
  color: var(--text-muted);
  font-weight: 500;
  margin-left: 2px;
}

.price-sub-note {
  font-size: 12px;
  color: var(--accent-apricot-hover);
  font-weight: 600;
  margin-top: 4px;
}

.price-editorial {
  font-size: 14px;
  color: var(--text-muted);
  font-style: normal;
  background-color: var(--bg-card);
  padding: 4px 8px;
  border-radius: var(--radius-sm);
}

.pricing-features-summary {
  font-size: 14px;
  color: var(--text-secondary);
}

/* 9 SEO Cards Section */
.articles-section {
  padding: 80px 0;
  background-color: var(--bg-surface);
  border-top: 1px solid var(--border-color);
  border-bottom: 1px solid var(--border-color);
}

.articles-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 24px;
}

/* Columns: 1 mobile / 2 tablet / 3 desktop */
@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-color: var(--bg-primary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 28px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  transition: transform 0.25s ease, box-shadow 0.25s ease;
}

.article-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
  border-color: var(--border-dark);
}

.card-top {
  margin-bottom: 20px;
}

.category-marker {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background-color: var(--bg-card);
  color: var(--text-primary);
  font-size: 13px;
  font-weight: 700;
  margin-bottom: 16px;
  border: 1px solid var(--border-color);
}

.article-card-title {
  font-size: 19px;
  line-height: 1.4;
  margin-bottom: 12px;
}

.article-card-title a {
  color: var(--text-primary);
}

.article-card-title a:hover {
  color: var(--accent-apricot-hover);
}

.article-card-desc {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.6;
  margin-bottom: 0;
}

.card-footer-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 14px;
  font-weight: 600;
  color: var(--text-primary);
  margin-top: 16px;
}

.card-footer-link:hover {
  color: var(--accent-apricot-hover);
}

/* Testimonials Section */
.testimonials-section {
  padding: 80px 0;
}

.testimonials-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 24px;
}

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

.testimonial-card {
  background-color: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 28px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.testimonial-quote {
  font-size: 15px;
  color: var(--text-secondary);
  line-height: 1.6;
  margin-bottom: 20px;
  font-style: normal;
}

.testimonial-author {
  display: flex;
  align-items: center;
  gap: 12px;
}

.author-avatar {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background-color: var(--text-primary);
  color: var(--accent-apricot);
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 16px;
}

.author-name {
  font-size: 15px;
  font-weight: 700;
  color: var(--text-primary);
}

.author-role {
  font-size: 13px;
  color: var(--text-muted);
}

/* FAQ Accordion Section */
.faq-section {
  padding: 80px 0;
  background-color: var(--bg-surface);
  border-top: 1px solid var(--border-color);
}

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

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

.faq-question {
  width: 100%;
  padding: 20px 24px;
  background: none;
  border: none;
  text-align: left;
  font-size: 18px;
  font-weight: 600;
  color: var(--text-primary);
  display: flex;
  align-items: center;
  justify-content: space-between;
  cursor: pointer;
  gap: 16px;
}

.faq-icon {
  width: 20px;
  height: 20px;
  transition: transform 0.3s ease;
  flex-shrink: 0;
  color: var(--text-muted);
}

.faq-item.active .faq-icon {
  transform: rotate(180deg);
  color: var(--text-primary);
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.35s cubic-bezier(0, 1, 0, 1), padding 0.3s ease;
  padding: 0 24px;
}

.faq-item.active .faq-answer {
  max-height: 500px;
  padding: 0 24px 20px;
}

.faq-answer p {
  font-size: 15px;
  color: var(--text-secondary);
  margin-bottom: 0;
}

/* Footer */
.footer {
  background-color: var(--text-primary);
  color: #ECE9ED;
  padding: 64px 0 32px;
  margin-top: auto;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 40px;
  margin-bottom: 48px;
}

@media (min-width: 768px) {
  .footer-grid {
    grid-template-columns: 2fr 1fr 1fr 1fr;
  }
}

.footer-brand {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.footer-logo {
  color: #FFFFFF;
  font-size: 22px;
  font-weight: 700;
  display: flex;
  align-items: center;
  gap: 10px;
}

.footer-desc {
  color: #B2A9C4;
  font-size: 14px;
  line-height: 1.6;
  max-width: 320px;
}

.footer-col-title {
  color: #FFFFFF;
  font-size: 16px;
  font-weight: 700;
  margin-bottom: 16px;
}

.footer-links-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.footer-links-list a {
  color: #C0B7D1;
  font-size: 14px;
}

.footer-links-list a:hover {
  color: var(--accent-apricot);
}

.footer-bottom {
  padding-top: 24px;
  border-top: 1px solid rgba(236, 233, 237, 0.15);
  display: flex;
  flex-direction: column;
  gap: 16px;
  align-items: center;
  justify-content: space-between;
  font-size: 13px;
  color: #9C93B0;
}

@media (min-width: 768px) {
  .footer-bottom {
    flex-direction: row;
  }
}

/* Article & Functional Page Inner Layouts */
.page-hero {
  padding: 48px 0 32px;
  background-color: var(--bg-surface);
  border-bottom: 1px solid var(--border-color);
}

.breadcrumb-nav {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 14px;
  color: var(--text-muted);
  margin-bottom: 16px;
  flex-wrap: wrap;
}

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

.breadcrumb-nav a:hover {
  color: var(--text-primary);
}

.article-body-layout {
  padding: 56px 0 80px;
}

.article-content {
  max-width: 820px;
  margin: 0 auto;
  background-color: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 32px 24px;
}

@media (min-width: 768px) {
  .article-content {
    padding: 48px 48px;
  }
}

.article-content h2 {
  margin-top: 40px;
  margin-bottom: 16px;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--border-color);
}

.article-content h3 {
  margin-top: 28px;
  margin-bottom: 12px;
}

.article-content ul, .article-content ol {
  margin-bottom: 20px;
  padding-left: 24px;
  color: var(--text-secondary);
}

.article-content li {
  margin-bottom: 8px;
  line-height: 1.6;
}

.article-callout {
  background-color: var(--accent-apricot-light);
  border-left: 4px solid var(--accent-apricot);
  padding: 20px 24px;
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  margin: 24px 0;
}

.article-callout p {
  color: var(--text-primary);
  margin-bottom: 0;
  font-weight: 500;
}

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

.related-title {
  font-size: 20px;
  margin-bottom: 16px;
}

.related-links-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 12px;
}

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

.related-link-card {
  padding: 14px 18px;
  background-color: var(--bg-primary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  font-weight: 600;
  font-size: 15px;
  display: block;
}

.related-link-card:hover {
  border-color: var(--text-primary);
  background-color: #FFFFFF;
}