/* Contemporary Field Notes Design System for CACApex Website */
:root {
  --color-bg: #FBFAF5;
  --color-bg-alt: #F4F3EA;
  --color-olive: #515F39;
  --color-olive-dark: #3E4A2A;
  --color-olive-light: #708253;
  --color-olive-soft: rgba(81, 95, 57, 0.08);
  --color-khaki: #EBEBD9;
  --color-khaki-dark: #D4D4BC;
  --color-ink: #2B3028;
  --color-ink-muted: #5F6659;
  --color-border: #D8D8C2;
  --color-border-light: #EBEBD9;
  
  --font-kai: "STKaiti", "KaiTi", "楷体", "Kaiti SC", "DFKai-SB", "FZKai-Z03S", serif;
  --font-sans: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  
  --max-width: 1200px;
  --header-height: 72px;
  --radius-sm: 4px;
  --radius-md: 6px;
  --shadow-notebook: 0 4px 16px rgba(43, 48, 40, 0.06);
  --transition: all 0.2s cubic-bezier(0.16, 1, 0.3, 1);
}

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

html {
  font-family: var(--font-sans);
  font-size: 18px; /* Requirement: Body 18px */
  line-height: 1.7;
  color: var(--color-ink);
  background-color: var(--color-bg);
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
}

body {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  overflow-x: hidden;
  background-color: var(--color-bg);
}

/* Typography */
h1, h2, h3, h4, .font-kai {
  font-family: var(--font-kai);
  color: var(--color-ink);
  font-weight: 700;
  line-height: 1.3;
}

h1 {
  font-size: 34px; /* Requirement: 34px Mobile */
  letter-spacing: -0.01em;
}

@media (min-width: 1024px) {
  h1 {
    font-size: 50px; /* Requirement: 50px Desktop */
  }
}

h2 {
  font-size: 28px;
  margin-bottom: 16px;
}

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

h3 {
  font-size: 22px;
  margin-bottom: 12px;
}

p {
  font-size: 18px;
  color: var(--color-ink);
  margin-bottom: 1rem;
}

p.lead {
  font-size: 19px;
  color: var(--color-ink-muted);
  line-height: 1.7;
}

a {
  color: var(--color-olive);
  text-decoration: none;
  transition: var(--transition);
}

a:hover {
  color: var(--color-olive-dark);
  text-decoration: underline;
}

ul, ol {
  padding-left: 1.5rem;
  margin-bottom: 1rem;
}

li {
  margin-bottom: 0.5rem;
}

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

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

/* Field Notebook Chapter Tags & Annotations */
.chapter-num {
  display: inline-block;
  font-family: var(--font-sans);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-olive);
  background-color: var(--color-khaki);
  padding: 4px 10px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--color-khaki-dark);
  margin-bottom: 12px;
}

.margin-note {
  font-size: 14px;
  color: var(--color-ink-muted);
  font-style: italic;
  border-left: 2px solid var(--color-olive-light);
  padding-left: 12px;
  margin: 12px 0;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 12px 24px;
  font-size: 16px;
  font-weight: 600;
  border-radius: var(--radius-sm);
  text-decoration: none !important;
  cursor: pointer;
  transition: var(--transition);
  border: 1px solid transparent;
  gap: 8px;
}

.btn-primary {
  background-color: var(--color-olive);
  color: #FBFAF5 !important;
  border-color: var(--color-olive);
}

.btn-primary:hover {
  background-color: var(--color-olive-dark);
  border-color: var(--color-olive-dark);
  color: #FBFAF5 !important;
}

.btn-secondary {
  background-color: var(--color-khaki);
  color: var(--color-ink) !important;
  border-color: var(--color-border);
}

.btn-secondary:hover {
  background-color: var(--color-khaki-dark);
  color: var(--color-ink) !important;
}

.btn-outline {
  background-color: transparent;
  color: var(--color-olive) !important;
  border-color: var(--color-olive);
}

.btn-outline:hover {
  background-color: var(--color-olive-soft);
  color: var(--color-olive-dark) !important;
}

.btn-lg {
  padding: 14px 28px;
  font-size: 18px;
}

.btn-sm {
  padding: 8px 16px;
  font-size: 14px;
}

/* Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  height: var(--header-height);
  background-color: rgba(251, 250, 245, 0.94);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--color-khaki-dark);
}

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

.site-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-kai);
  font-size: 22px;
  font-weight: 700;
  color: var(--color-ink);
  text-decoration: none !important;
}

.site-logo svg {
  color: var(--color-olive);
}

.logo-badge {
  font-family: var(--font-sans);
  font-size: 12px;
  font-weight: 600;
  padding: 2px 6px;
  background-color: var(--color-khaki);
  color: var(--color-olive-dark);
  border-radius: 3px;
  border: 1px solid var(--color-border);
}

.nav-desktop {
  display: none;
  align-items: center;
  gap: 24px;
}

@media (min-width: 992px) {
  .nav-desktop {
    display: flex;
  }
}

.nav-link {
  font-size: 16px;
  font-weight: 500;
  color: var(--color-ink);
  text-decoration: none !important;
  padding: 6px 0;
  position: relative;
}

.nav-link:hover {
  color: var(--color-olive);
}

.mobile-toggle {
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  width: 28px;
  height: 20px;
  background: transparent;
  border: none;
  cursor: pointer;
  padding: 0;
  z-index: 1001;
}

@media (min-width: 992px) {
  .mobile-toggle {
    display: none;
  }
}

.mobile-toggle span {
  width: 100%;
  height: 2px;
  background-color: var(--color-ink);
  transition: var(--transition);
  border-radius: 1px;
}

.mobile-toggle.active span:nth-child(1) {
  transform: translateY(9px) rotate(45deg);
}
.mobile-toggle.active span:nth-child(2) {
  opacity: 0;
}
.mobile-toggle.active span:nth-child(3) {
  transform: translateY(-9px) rotate(-45deg);
}

/* Mobile Menu Drawer */
.mobile-menu {
  position: fixed;
  top: var(--header-height);
  left: 0;
  right: 0;
  bottom: 0;
  background-color: var(--color-bg);
  padding: 30px 24px;
  display: flex;
  flex-direction: column;
  gap: 16px;
  transform: translateX(100%);
  transition: transform 0.3s ease-in-out;
  z-index: 999;
  border-top: 1px solid var(--color-khaki-dark);
  overflow-y: auto;
}

.mobile-menu.open {
  transform: translateX(0);
}

.mobile-nav-link {
  font-size: 18px;
  font-weight: 600;
  color: var(--color-ink);
  padding: 10px 0;
  border-bottom: 1px dashed var(--color-khaki-dark);
  text-decoration: none !important;
}

.mobile-nav-link:hover {
  color: var(--color-olive);
}

/* Hero Section */
.hero-section {
  padding: 50px 0 60px;
  background-color: var(--color-bg);
  border-bottom: 1px solid var(--color-khaki-dark);
  position: relative;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 40px;
  align-items: center;
}

@media (min-width: 1024px) {
  .hero-grid {
    grid-template-columns: 1fr 1fr;
    gap: 50px;
  }
}

.hero-kicker {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 14px;
  font-weight: 600;
  color: var(--color-olive);
  background-color: var(--color-khaki);
  padding: 6px 14px;
  border-radius: 4px;
  border: 1px solid var(--color-border);
  margin-bottom: 20px;
}

.hero-title {
  margin-bottom: 20px;
}

.brand-highlight {
  color: var(--color-olive);
  border-bottom: 3px double var(--color-olive-light);
}

.hero-description {
  font-size: 19px;
  color: var(--color-ink-muted);
  margin-bottom: 30px;
  line-height: 1.7;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  margin-bottom: 32px;
}

.hero-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 20px;
  padding-top: 20px;
  border-top: 1px dashed var(--color-khaki-dark);
}

.hero-meta-item {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 14px;
  font-weight: 600;
  color: var(--color-ink-muted);
}

.hero-meta-item svg {
  color: var(--color-olive);
}

/* Hero Dashboard (Hand-drafted Network Route Chart) */
.hero-dashboard-wrapper {
  width: 100%;
}

.editorial-spread {
  background-color: #F8F7F0;
  border: 1px solid var(--color-khaki-dark);
  border-radius: var(--radius-md);
  padding: 24px;
  box-shadow: var(--shadow-notebook);
  position: relative;
  background-image: repeating-linear-gradient(transparent, transparent 27px, rgba(235, 235, 217, 0.4) 27px, rgba(235, 235, 217, 0.4) 28px);
}

.dashboard-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 20px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--color-khaki-dark);
}

.dashboard-title {
  font-family: var(--font-kai);
  font-size: 18px;
  font-weight: 700;
  color: var(--color-ink);
}

.dashboard-status {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 13px;
  font-weight: 600;
  color: var(--color-olive);
}

.status-dot {
  width: 8px;
  height: 8px;
  background-color: var(--color-olive);
  border-radius: 50%;
  display: inline-block;
  animation: markerFade 2s infinite ease-in-out;
}

@keyframes markerFade {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.4; transform: scale(0.85); }
}

.dashboard-metrics {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  margin-bottom: 20px;
}

.metric-card {
  background-color: #FBFAF5;
  border: 1px solid var(--color-border);
  padding: 12px 16px;
  border-radius: var(--radius-sm);
}

.metric-label {
  font-size: 13px;
  color: var(--color-ink-muted);
  margin-bottom: 4px;
}

.metric-value {
  font-family: var(--font-sans);
  font-size: 18px;
  font-weight: 700;
  color: var(--color-olive-dark);
}

.network-svg-container {
  width: 100%;
  height: 160px;
  background-color: #FBFAF5;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  padding: 10px;
  position: relative;
  overflow: hidden;
}

.dashboard-line-svg {
  width: 100%;
  height: 100%;
}

.dashboard-line-path {
  fill: none;
  stroke: var(--color-olive);
  stroke-width: 2.5;
  stroke-dasharray: 6 3;
}

.node-pins-overlay {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 10px;
  margin-top: 16px;
}

@media (min-width: 480px) {
  .node-pins-overlay {
    grid-template-columns: repeat(4, 1fr);
  }
}

.node-pin {
  background-color: #FBFAF5;
  border: 1px solid var(--color-border);
  padding: 8px 10px;
  border-radius: 4px;
  font-size: 12px;
  font-weight: 600;
  text-align: center;
  color: var(--color-ink);
}

.node-pin-code {
  color: var(--color-olive);
  font-weight: 700;
}

/* Sections Common */
section {
  padding: 70px 0;
  border-bottom: 1px solid var(--color-khaki-dark);
}

.section-header {
  margin-bottom: 48px;
  max-width: 800px;
}

.section-tag {
  display: inline-block;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.08em;
  color: var(--color-olive);
  background-color: var(--color-khaki);
  padding: 4px 10px;
  border-radius: 3px;
  margin-bottom: 12px;
  border: 1px solid var(--color-border);
}

/* Three Advantages Section (Annotated Explanations) */
.features-section {
  background-color: var(--color-bg);
}

.horizontal-story {
  display: grid;
  grid-template-columns: 1fr;
  gap: 30px;
  background-color: #F8F7F0;
  border: 1px solid var(--color-khaki-dark);
  border-radius: var(--radius-md);
  padding: 30px;
  margin-bottom: 30px;
  position: relative;
}

@media (min-width: 992px) {
  .horizontal-story {
    grid-template-columns: 3fr 2fr;
    gap: 40px;
    padding: 36px;
  }
  
  .horizontal-story.reverse {
    grid-template-columns: 2fr 3fr;
  }
  .horizontal-story.reverse .story-content {
    order: 2;
  }
  .horizontal-story.reverse .story-visual {
    order: 1;
  }
}

.story-number {
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.1em;
  color: var(--color-olive);
  background-color: var(--color-khaki);
  padding: 3px 8px;
  border-radius: 3px;
  display: inline-block;
  margin-bottom: 12px;
}

.story-title {
  font-size: 24px;
  margin-bottom: 14px;
}

.story-text {
  font-size: 17px;
  color: var(--color-ink-muted);
  margin-bottom: 16px;
}

.story-list {
  list-style: none;
  padding-left: 0;
  margin-bottom: 0;
}

.story-list li {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: 16px;
  color: var(--color-ink);
  margin-bottom: 8px;
}

.story-list li svg {
  color: var(--color-olive);
  flex-shrink: 0;
  margin-top: 4px;
}

.story-visual {
  display: flex;
  align-items: center;
  justify-content: center;
}

.story-card-graphic {
  width: 100%;
  background-color: #FBFAF5;
  border: 1px dashed var(--color-olive-light);
  padding: 20px;
  border-radius: var(--radius-sm);
}

/* Global Nodes Section (Regional Notebook Index) */
.nodes-section {
  background-color: var(--color-bg-alt);
}

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

@media (min-width: 576px) {
  .nodes-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

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

.node-card {
  background-color: #FBFAF5;
  border: 1px solid var(--color-border);
  border-top: 4px solid var(--color-olive);
  border-radius: var(--radius-sm);
  padding: 24px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.node-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 16px;
  padding-bottom: 10px;
  border-bottom: 1px dashed var(--color-khaki-dark);
}

.node-region {
  font-family: var(--font-kai);
  font-size: 19px;
  font-weight: 700;
  color: var(--color-ink);
}

.node-flag {
  font-size: 24px;
}

.node-details {
  list-style: none;
  padding-left: 0;
  margin-bottom: 16px;
}

.node-details li {
  display: flex;
  justify-content: space-between;
  font-size: 14px;
  padding: 6px 0;
  border-bottom: 1px dotted var(--color-khaki);
}

.node-details li span:first-child {
  color: var(--color-ink-muted);
}

.node-details li span:last-child {
  font-weight: 600;
  color: var(--color-ink);
}

.node-notice {
  font-size: 12px;
  color: var(--color-olive);
  background-color: var(--color-khaki);
  padding: 6px 10px;
  border-radius: 3px;
  text-align: center;
  font-weight: 600;
}

/* AI & Streaming Use Cases */
.usecases-section {
  background-color: var(--color-bg);
}

.usecases-tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 30px;
}

.tab-btn {
  background-color: var(--color-khaki);
  color: var(--color-ink);
  border: 1px solid var(--color-border);
  padding: 8px 16px;
  font-size: 15px;
  font-weight: 600;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: var(--transition);
}

.tab-btn:hover, .tab-btn.active {
  background-color: var(--color-olive);
  color: #FBFAF5;
  border-color: var(--color-olive);
}

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

@media (min-width: 576px) {
  .app-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 992px) {
  .app-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

.app-card {
  background-color: #F8F7F0;
  border: 1px solid var(--color-khaki-dark);
  border-radius: var(--radius-sm);
  padding: 20px;
  display: flex;
  flex-direction: column;
}

.app-badge {
  align-self: flex-start;
  font-size: 12px;
  font-weight: 700;
  padding: 2px 8px;
  border-radius: 3px;
  margin-bottom: 12px;
}

.badge-ai { background-color: #EBEBD9; color: var(--color-olive); }
.badge-media { background-color: #EBEBD9; color: #8A5A2B; }
.badge-dev { background-color: #EBEBD9; color: #3B5998; }

.app-name {
  font-family: var(--font-kai);
  font-size: 20px;
  font-weight: 700;
  color: var(--color-ink);
  margin-bottom: 8px;
}

.app-desc {
  font-size: 15px;
  color: var(--color-ink-muted);
  margin-bottom: 0;
  line-height: 1.6;
}

/* Pricing Section (Comparison Sheet) */
.pricing-section {
  background-color: var(--color-bg-alt);
}

.pricing-table-wrapper {
  overflow-x: auto;
  background-color: #FBFAF5;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
}

.pricing-table {
  width: 100%;
  border-collapse: collapse;
  min-width: 700px;
  text-align: left;
}

.pricing-table th, .pricing-table td {
  padding: 16px 20px;
  border-bottom: 1px solid var(--color-khaki);
  font-size: 15px;
}

.pricing-table th {
  background-color: var(--color-khaki);
  font-family: var(--font-sans);
  font-weight: 700;
  color: var(--color-ink);
  border-bottom: 2px solid var(--color-khaki-dark);
}

.pricing-table tr:hover {
  background-color: rgba(235, 235, 217, 0.3);
}

.placeholder-tag {
  font-size: 13px;
  color: var(--color-ink-muted);
  background-color: var(--color-khaki);
  padding: 4px 8px;
  border-radius: 3px;
  font-style: italic;
}

/* 9 SEO Article Cards (Requirement: 3 desktop / 2 tablet / 1 mobile) */
.articles-section {
  background-color: var(--color-bg);
}

.article-cards-grid {
  display: grid;
  grid-template-columns: 1fr; /* Mobile: 1 col */
  gap: 24px;
}

@media (min-width: 768px) {
  .article-cards-grid {
    grid-template-columns: repeat(2, 1fr); /* Tablet: 2 cols */
  }
}

@media (min-width: 1024px) {
  .article-cards-grid {
    grid-template-columns: repeat(3, 1fr); /* Desktop: 3 cols */
  }
}

.article-card {
  background-color: #F8F7F0;
  border: 1px solid var(--color-khaki-dark);
  border-radius: var(--radius-sm);
  padding: 24px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  transition: var(--transition);
}

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

.article-category {
  font-size: 12px;
  font-weight: 700;
  color: var(--color-olive);
  background-color: var(--color-khaki);
  padding: 3px 8px;
  border-radius: 3px;
  align-self: flex-start;
  margin-bottom: 12px;
}

.article-card-title {
  font-family: var(--font-kai);
  font-size: 20px;
  font-weight: 700;
  margin-bottom: 12px;
  line-height: 1.4;
}

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

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

.article-card-desc {
  font-size: 15px;
  color: var(--color-ink-muted);
  margin-bottom: 16px;
  line-height: 1.6;
}

.article-card-footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: 12px;
  border-top: 1px dashed var(--color-khaki-dark);
  font-size: 13px;
  color: var(--color-ink-muted);
}

.read-more-link {
  font-weight: 600;
  color: var(--color-olive);
}

/* Testimonials Section */
.testimonials-section {
  background-color: var(--color-bg-alt);
}

.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: #FBFAF5;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  padding: 24px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  position: relative;
}

.quote-mark {
  font-family: var(--font-kai);
  font-size: 40px;
  line-height: 1;
  color: var(--color-khaki-dark);
  margin-bottom: 8px;
}

.testimonial-text {
  font-size: 16px;
  color: var(--color-ink);
  margin-bottom: 20px;
  line-height: 1.6;
}

.testimonial-author {
  display: flex;
  align-items: center;
  gap: 12px;
  padding-top: 12px;
  border-top: 1px dashed var(--color-khaki);
}

.author-avatar {
  width: 40px;
  height: 40px;
  background-color: var(--color-olive);
  color: #FBFAF5;
  font-weight: 700;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 16px;
}

.author-info {
  display: flex;
  flex-direction: column;
}

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

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

.sample-badge {
  margin-left: auto;
  font-size: 11px;
  background-color: var(--color-khaki);
  color: var(--color-ink-muted);
  padding: 2px 6px;
  border-radius: 3px;
}

/* FAQ Accordion Section */
.faq-section {
  background-color: var(--color-bg);
}

.faq-accordion {
  max-width: 860px;
  margin: 0 auto;
}

.faq-item {
  border: 1px solid var(--color-khaki-dark);
  border-radius: var(--radius-sm);
  margin-bottom: 12px;
  background-color: #F8F7F0;
  overflow: hidden;
}

.faq-question {
  width: 100%;
  padding: 18px 24px;
  background: transparent;
  border: none;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-family: var(--font-kai);
  font-size: 19px;
  font-weight: 700;
  color: var(--color-ink);
  text-align: left;
  cursor: pointer;
}

.faq-icon {
  width: 20px;
  height: 20px;
  color: var(--color-olive);
  transition: transform 0.3s ease;
  flex-shrink: 0;
  margin-left: 12px;
}

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

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s ease, padding 0.3s ease;
  padding: 0 24px;
  background-color: #FBFAF5;
}

.faq-item.active .faq-answer {
  max-height: 300px;
  padding: 16px 24px 24px;
  border-top: 1px dashed var(--color-khaki);
}

.faq-answer p {
  margin-bottom: 0;
  font-size: 16px;
  color: var(--color-ink-muted);
}

/* Footer */
.site-footer {
  background-color: #1F241E;
  color: #D4D8CF;
  padding: 60px 0 30px;
  border-top: 4px solid var(--color-olive);
}

.disclaimer-box {
  background-color: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.1);
  padding: 16px 20px;
  border-radius: var(--radius-sm);
  font-size: 14px;
  line-height: 1.6;
  margin-bottom: 40px;
  color: #B5BBB0;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 36px;
  margin-bottom: 40px;
}

@media (min-width: 576px) {
  .footer-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 992px) {
  .footer-grid {
    grid-template-columns: 2fr 1fr 1fr 1.5fr;
  }
}

.footer-brand .footer-logo {
  font-family: var(--font-kai);
  font-size: 22px;
  font-weight: 700;
  color: #FBFAF5;
  margin-bottom: 12px;
  display: block;
  text-decoration: none !important;
}

.footer-desc {
  font-size: 14px;
  color: #A0A89A;
  line-height: 1.6;
}

.footer-col-title {
  font-family: var(--font-sans);
  font-size: 16px;
  font-weight: 700;
  color: #FBFAF5;
  margin-bottom: 16px;
}

.footer-links {
  list-style: none;
  padding-left: 0;
}

.footer-links li {
  margin-bottom: 8px;
}

.footer-links a {
  color: #B5BBB0;
  font-size: 14px;
  text-decoration: none !important;
}

.footer-links a:hover {
  color: #FBFAF5;
  text-decoration: underline !important;
}

.footer-bottom {
  padding-top: 24px;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  display: flex;
  flex-direction: column;
  gap: 10px;
  font-size: 13px;
  color: #8A9284;
}

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

/* Article & Auxiliary Pages Styling */
.page-header {
  background-color: var(--color-bg-alt);
  padding: 40px 0;
  border-bottom: 1px solid var(--color-khaki-dark);
  margin-bottom: 40px;
}

.breadcrumb {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  font-size: 14px;
  color: var(--color-ink-muted);
  margin-bottom: 16px;
  list-style: none;
  padding-left: 0;
}

.breadcrumb-item a {
  color: var(--color-olive);
}

.breadcrumb-item::after {
  content: " / ";
  margin-left: 8px;
  color: var(--color-border);
}

.breadcrumb-item:last-child::after {
  content: "";
}

.article-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: 40px;
  padding-bottom: 60px;
}

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

.article-body {
  font-size: 18px;
  line-height: 1.8;
  color: var(--color-ink);
}

.article-body h2 {
  font-size: 26px;
  margin-top: 36px;
  margin-bottom: 16px;
  padding-bottom: 8px;
  border-bottom: 1px dashed var(--color-khaki-dark);
  color: var(--color-ink);
}

.article-body h3 {
  font-size: 21px;
  margin-top: 28px;
  margin-bottom: 12px;
  color: var(--color-olive-dark);
}

.article-body blockquote {
  background-color: #F8F7F0;
  border-left: 4px solid var(--color-olive);
  padding: 16px 20px;
  margin: 24px 0;
  font-style: italic;
  color: var(--color-ink-muted);
}

.related-box {
  background-color: #F8F7F0;
  border: 1px solid var(--color-khaki-dark);
  border-radius: var(--radius-sm);
  padding: 24px;
  margin-top: 40px;
}

.related-box h3 {
  font-size: 18px;
  margin-bottom: 14px;
}

.related-links-list {
  list-style: none;
  padding-left: 0;
  margin-bottom: 0;
}

.related-links-list li {
  margin-bottom: 10px;
}

.related-links-list a {
  font-size: 15px;
  font-weight: 600;
}

/* Support Reduced Motion */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
  .status-dot {
    animation: none;
  }
}