/* ==========================================
   iTrumpYun Design System - Modern Editorial
   ========================================== */

:root {
  --bg-main: #F6F4EF;
  --bg-card: #FFFFFF;
  --bg-subtle: #EFECE6;
  --bg-dark: #1C2220;
  --text-primary: #22282B;
  --text-secondary: #69716E;
  --text-muted: #8E9692;
  --text-light: #F6F4EF;
  --color-primary: #24483F;
  --color-primary-hover: #1A352E;
  --color-accent: #B57D58;
  --color-accent-hover: #9E6B4A;
  --border-color: #DDE2DC;
  --border-dark: #2E3834;
  --status-online: #2E7D32;
  --status-online-bg: #E8F5E9;
  
  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  --font-serif: "Georgia", "Cambria", "Times New Roman", serif;
  --font-mono: "SFMono-Regular", Consolas, "Liberation Mono", Menlo, monospace;
  
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 12px;
  
  --shadow-subtle: 0 4px 16px rgba(34, 40, 43, 0.04);
  --shadow-card: 0 12px 32px rgba(34, 40, 43, 0.06);
  --shadow-hover: 0 16px 40px rgba(34, 40, 43, 0.1);
  
  --max-width: 1240px;
  --header-height: 76px;
  --transition-fast: 0.2s ease;
  --transition-normal: 0.3s ease;
}

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

html {
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.6;
  color: var(--text-primary);
  background-color: var(--bg-main);
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  overflow-x: hidden;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

img, svg, video {
  max-width: 100%;
  height: auto;
  display: block;
}

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

button, input, select, textarea {
  font: inherit;
}

/* Layout Utilities */
.container {
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 1.5rem;
}

.section-padding {
  padding: 5rem 0;
}

.editorial-header {
  margin-bottom: 3.5rem;
}

.editorial-tag {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.8125rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: 0.75rem;
}

.editorial-tag::before {
  content: "";
  display: inline-block;
  width: 18px;
  height: 1px;
  background-color: var(--color-accent);
}

.editorial-title {
  font-size: clamp(1.85rem, 3.5vw, 2.75rem);
  font-weight: 700;
  line-height: 1.25;
  letter-spacing: -0.02em;
  color: var(--text-primary);
  margin-bottom: 1rem;
}

.editorial-subtitle {
  font-size: 1.125rem;
  color: var(--text-secondary);
  max-width: 680px;
  line-height: 1.7;
}

/* Typography styles */
h1, h2, h3, h4, h5, h6 {
  color: var(--text-primary);
  font-weight: 700;
  line-height: 1.3;
}

.number-badge {
  font-family: var(--font-serif);
  font-size: 1rem;
  font-style: italic;
  color: var(--color-accent);
  display: block;
  margin-bottom: 0.5rem;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.6rem;
  padding: 0.85rem 1.75rem;
  font-size: 0.95rem;
  font-weight: 600;
  border-radius: var(--radius-sm);
  transition: all var(--transition-fast);
  cursor: pointer;
  border: 1px solid transparent;
  white-space: nowrap;
}

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

.btn-primary:hover {
  background-color: var(--color-primary-hover);
  border-color: var(--color-primary-hover);
  transform: translateY(-1px);
  color: #FFFFFF;
}

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

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

.btn-accent {
  background-color: var(--color-accent);
  color: #FFFFFF;
  border-color: var(--color-accent);
}

.btn-accent:hover {
  background-color: var(--color-accent-hover);
  border-color: var(--color-accent-hover);
  color: #FFFFFF;
}

.btn-sm {
  padding: 0.5rem 1.15rem;
  font-size: 0.875rem;
}

.btn-lg {
  padding: 1.05rem 2.25rem;
  font-size: 1.05rem;
}

.btn svg {
  width: 18px;
  height: 18px;
  transition: transform var(--transition-fast);
}

.btn:hover svg {
  transform: translateX(3px);
}

/* Header & Navigation */
.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background-color: rgba(246, 244, 239, 0.92);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border-color);
  height: var(--header-height);
  display: flex;
  align-items: center;
}

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

.brand-logo {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-size: 1.35rem;
  font-weight: 800;
  letter-spacing: -0.03em;
  color: var(--text-primary);
}

.brand-logo-mark {
  width: 34px;
  height: 34px;
  background-color: var(--color-primary);
  color: #FFFFFF;
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-serif);
  font-style: italic;
  font-weight: 700;
  font-size: 1.15rem;
}

.nav-menu {
  display: flex;
  align-items: center;
  gap: 1.75rem;
  list-style: none;
}

.nav-link {
  font-size: 0.925rem;
  font-weight: 500;
  color: var(--text-secondary);
  position: relative;
  padding: 0.25rem 0;
}

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

.nav-link::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background-color: var(--color-primary);
  transition: width var(--transition-fast);
}

.nav-link:hover::after, .nav-link.active::after {
  width: 100%;
}

.header-cta {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.mobile-menu-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0.5rem;
  color: var(--text-primary);
}

/* Hero Section */
.hero-section {
  padding: 4.5rem 0 5rem 0;
  border-bottom: 1px solid var(--border-color);
  background: linear-gradient(180deg, var(--bg-main) 0%, #EDE9E1 100%);
}

.hero-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3.5rem;
  align-items: center;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  padding: 0.35rem 0.85rem;
  background-color: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 50px;
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--color-primary);
  margin-bottom: 1.5rem;
}

.hero-badge-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background-color: var(--status-online);
}

.hero-title {
  font-size: clamp(2.25rem, 4vw, 3.4rem);
  font-weight: 800;
  line-height: 1.15;
  letter-spacing: -0.03em;
  margin-bottom: 1.25rem;
  color: var(--text-primary);
}

.hero-title span {
  color: var(--color-primary);
  position: relative;
  display: inline-block;
}

.hero-desc {
  font-size: 1.125rem;
  color: var(--text-secondary);
  line-height: 1.7;
  margin-bottom: 2rem;
  max-width: 540px;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 1rem;
  margin-bottom: 2.5rem;
}

.hero-features-list {
  display: flex;
  gap: 1.75rem;
  list-style: none;
  padding-top: 1.5rem;
  border-top: 1px solid var(--border-color);
}

.hero-feature-item {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.875rem;
  color: var(--text-secondary);
  font-weight: 500;
}

.hero-feature-item svg {
  color: var(--color-primary);
  width: 16px;
  height: 16px;
}

/* Original Network Console (Right Side Hero) */
.network-console {
  background-color: var(--bg-dark);
  color: var(--text-light);
  border-radius: var(--radius-lg);
  border: 1px solid var(--border-dark);
  padding: 1.75rem;
  box-shadow: var(--shadow-card);
  font-family: var(--font-sans);
  position: relative;
  overflow: hidden;
}

.console-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-bottom: 1.25rem;
  border-bottom: 1px solid var(--border-dark);
  margin-bottom: 1.5rem;
}

.console-title {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  font-size: 0.95rem;
  font-weight: 600;
  letter-spacing: 0.03em;
  color: var(--bg-main);
}

.console-title-indicator {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background-color: #4CAF50;
}

.console-notice {
  font-size: 0.75rem;
  font-family: var(--font-mono);
  color: var(--text-muted);
  background-color: rgba(255,255,255,0.05);
  padding: 0.2rem 0.6rem;
  border-radius: 3px;
}

.console-nodes-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 0.85rem;
  margin-bottom: 1.5rem;
}

.node-card {
  background-color: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: var(--radius-md);
  padding: 0.9rem;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.node-card:hover, .node-card.active {
  background-color: rgba(36, 72, 63, 0.4);
  border-color: var(--color-primary);
}

.node-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 0.4rem;
}

.node-flag-name {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.9rem;
  font-weight: 600;
  color: #FFFFFF;
}

.node-ping {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  font-weight: 600;
  color: #66BB6A;
}

.node-meta {
  display: flex;
  justify-content: space-between;
  font-size: 0.75rem;
  color: var(--text-muted);
}

.console-status-box {
  background-color: rgba(0, 0, 0, 0.3);
  border-radius: var(--radius-md);
  padding: 1rem;
  border: 1px solid rgba(255, 255, 255, 0.05);
}

.status-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 0.825rem;
  margin-bottom: 0.5rem;
}

.status-row:last-child {
  margin-bottom: 0;
}

.status-label {
  color: var(--text-muted);
}

.status-val {
  font-family: var(--font-mono);
  font-weight: 500;
  color: #E0E6E4;
}

.status-val.highlight {
  color: var(--color-accent);
}

.route-visualization {
  margin-top: 1rem;
  padding-top: 1rem;
  border-top: 1px dashed rgba(255, 255, 255, 0.1);
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 0.775rem;
  font-family: var(--font-mono);
  color: var(--text-muted);
}

.route-step {
  display: flex;
  align-items: center;
  gap: 0.4rem;
}

.route-arrow {
  color: var(--color-accent);
}

/* Core Advantages Section */
.advantages-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
}

.advantage-card {
  background-color: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 2.25rem 2rem;
  transition: transform var(--transition-fast), box-shadow var(--transition-fast);
  position: relative;
  display: flex;
  flex-direction: column;
}

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

.advantage-num {
  font-family: var(--font-serif);
  font-size: 2.25rem;
  font-style: italic;
  font-weight: 700;
  color: var(--color-accent);
  margin-bottom: 1.25rem;
  line-height: 1;
}

.advantage-title {
  font-size: 1.25rem;
  font-weight: 700;
  margin-bottom: 0.85rem;
  color: var(--text-primary);
}

.advantage-desc {
  font-size: 0.95rem;
  color: var(--text-secondary);
  line-height: 1.65;
}

/* Network Capabilities / Global Nodes Section */
.nodes-section {
  background-color: var(--bg-subtle);
  border-top: 1px solid var(--border-color);
  border-bottom: 1px solid var(--border-color);
}

.nodes-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.5rem;
}

.region-box {
  background-color: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 1.75rem;
}

.region-box-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 1rem;
  padding-bottom: 0.75rem;
  border-bottom: 1px solid var(--border-color);
}

.region-name {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--text-primary);
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.region-count {
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--color-accent);
  background-color: var(--bg-main);
  padding: 0.15rem 0.5rem;
  border-radius: 4px;
  border: 1px solid var(--border-color);
}

.region-features-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
}

.region-features-list li {
  font-size: 0.875rem;
  color: var(--text-secondary);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.region-features-list li span.meta-tag {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--color-primary);
  background-color: rgba(36, 72, 63, 0.08);
  padding: 0.1rem 0.4rem;
  border-radius: 3px;
}

/* AI Tools & Streaming Section */
.usecase-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 2.5rem;
}

.usecase-card {
  background-color: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 2.5rem;
  display: flex;
  flex-direction: column;
}

.usecase-icon {
  width: 48px;
  height: 48px;
  background-color: rgba(36, 72, 63, 0.08);
  color: var(--color-primary);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1.5rem;
}

.usecase-icon svg {
  width: 26px;
  height: 26px;
}

.usecase-title {
  font-size: 1.4rem;
  font-weight: 700;
  margin-bottom: 1rem;
}

.usecase-desc {
  font-size: 0.975rem;
  color: var(--text-secondary);
  line-height: 1.7;
  margin-bottom: 1.5rem;
}

.usecase-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-top: auto;
}

.usecase-tag {
  font-size: 0.8125rem;
  font-weight: 500;
  color: var(--text-primary);
  background-color: var(--bg-main);
  border: 1px solid var(--border-color);
  padding: 0.3rem 0.7rem;
  border-radius: 4px;
}

/* Pricing Section */
.pricing-section {
  background-color: var(--bg-main);
  position: relative;
}

.pricing-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
  align-items: stretch;
}

.pricing-card {
  background-color: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 2.5rem 2rem;
  display: flex;
  flex-direction: column;
  position: relative;
  transition: transform var(--transition-fast), box-shadow var(--transition-fast);
}

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

.pricing-card.popular {
  border: 2px solid var(--color-primary);
  box-shadow: var(--shadow-card);
}

.popular-badge {
  position: absolute;
  top: -14px;
  right: 2rem;
  background-color: var(--color-primary);
  color: #FFFFFF;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  padding: 0.25rem 0.85rem;
  border-radius: 50px;
  text-transform: uppercase;
}

.pricing-header {
  margin-bottom: 1.75rem;
  padding-bottom: 1.5rem;
  border-bottom: 1px solid var(--border-color);
}

.pricing-plan-name {
  font-size: 1.35rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 0.5rem;
}

.pricing-plan-desc {
  font-size: 0.875rem;
  color: var(--text-secondary);
}

.pricing-price-box {
  display: flex;
  align-items: baseline;
  gap: 0.3rem;
  margin-top: 1rem;
}

.pricing-currency {
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--text-primary);
}

.pricing-amount {
  font-size: 2.75rem;
  font-weight: 800;
  letter-spacing: -0.03em;
  color: var(--text-primary);
  line-height: 1;
}

.pricing-period {
  font-size: 0.875rem;
  color: var(--text-secondary);
}

.pricing-placeholder-note {
  font-size: 0.75rem;
  color: var(--color-accent);
  margin-top: 0.4rem;
  font-style: italic;
}

.pricing-features {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.9rem;
  margin-bottom: 2rem;
  flex-grow: 1;
}

.pricing-features li {
  font-size: 0.9rem;
  color: var(--text-secondary);
  display: flex;
  align-items: center;
  gap: 0.65rem;
}

.pricing-features li svg {
  color: var(--color-primary);
  width: 18px;
  height: 18px;
  flex-shrink: 0;
}

/* Articles Entry Section (Magazine Editorial Grid) */
.articles-section {
  background-color: var(--bg-subtle);
  border-top: 1px solid var(--border-color);
  border-bottom: 1px solid var(--border-color);
}

.articles-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
}

.article-card {
  background-color: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 1.85rem;
  display: flex;
  flex-direction: column;
  transition: transform var(--transition-fast), border-color var(--transition-fast);
}

.article-card:hover {
  transform: translateY(-3px);
  border-color: var(--color-primary);
}

.article-meta {
  display: flex;
  align-items: center;
  gap: 0.85rem;
  font-size: 0.8rem;
  color: var(--text-muted);
  margin-bottom: 0.85rem;
}

.article-category {
  color: var(--color-accent);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.article-card-title {
  font-size: 1.15rem;
  font-weight: 700;
  line-height: 1.4;
  margin-bottom: 0.75rem;
  color: var(--text-primary);
}

.article-card-excerpt {
  font-size: 0.875rem;
  color: var(--text-secondary);
  line-height: 1.6;
  margin-bottom: 1.25rem;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.article-card-footer {
  margin-top: auto;
  padding-top: 1rem;
  border-top: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--color-primary);
}

/* User Reviews Section */
.reviews-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
}

.review-card {
  background-color: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 2rem;
  display: flex;
  flex-direction: column;
}

.review-quote {
  font-size: 0.95rem;
  color: var(--text-secondary);
  line-height: 1.7;
  margin-bottom: 1.5rem;
  font-style: italic;
}

.review-author {
  display: flex;
  align-items: center;
  gap: 0.85rem;
  margin-top: auto;
}

.review-avatar {
  width: 42px;
  height: 42px;
  border-radius: 50%;
  background-color: var(--bg-subtle);
  border: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  color: var(--color-primary);
  font-size: 0.9rem;
}

.author-info h4 {
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--text-primary);
}

.author-info p {
  font-size: 0.775rem;
  color: var(--text-muted);
}

.review-demo-notice {
  font-size: 0.75rem;
  color: var(--text-muted);
  margin-top: 2rem;
  text-align: center;
}

/* FAQ Section */
.faq-list {
  max-width: 840px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

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

.faq-question {
  width: 100%;
  padding: 1.35rem 1.5rem;
  background: none;
  border: none;
  text-align: left;
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--text-primary);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  transition: background-color var(--transition-fast);
}

.faq-question:hover {
  background-color: var(--bg-main);
}

.faq-icon {
  width: 20px;
  height: 20px;
  color: var(--color-accent);
  transition: transform var(--transition-normal);
  flex-shrink: 0;
}

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

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height var(--transition-normal);
  background-color: #FAFAFA;
}

.faq-answer-inner {
  padding: 0 1.5rem 1.5rem 1.5rem;
  font-size: 0.95rem;
  color: var(--text-secondary);
  line-height: 1.7;
  border-top: 1px solid var(--border-color);
}

/* Footer */
.site-footer {
  background-color: var(--bg-dark);
  color: var(--text-light);
  padding: 4.5rem 0 2.5rem 0;
  margin-top: auto;
  border-top: 1px solid var(--border-dark);
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1.5fr;
  gap: 3rem;
  margin-bottom: 3.5rem;
}

.footer-brand p {
  font-size: 0.9rem;
  color: var(--text-muted);
  line-height: 1.65;
  margin-top: 1rem;
  max-width: 320px;
}

.footer-heading {
  font-size: 0.95rem;
  font-weight: 700;
  color: #FFFFFF;
  margin-bottom: 1.25rem;
  letter-spacing: 0.03em;
}

.footer-links {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.footer-links a {
  font-size: 0.875rem;
  color: var(--text-muted);
}

.footer-links a:hover {
  color: #FFFFFF;
}

.footer-rec-links {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.footer-rec-links a {
  font-size: 0.85rem;
  color: var(--text-muted);
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
}

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

.footer-bottom {
  padding-top: 2rem;
  border-top: 1px solid var(--border-dark);
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 0.8125rem;
  color: var(--text-muted);
}

/* Article Template Specific Styles */
.article-page-header {
  padding: 3rem 0 2rem 0;
  border-bottom: 1px solid var(--border-color);
  background-color: var(--bg-card);
}

.breadcrumb {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 0.5rem;
  font-size: 0.85rem;
  color: var(--text-muted);
  margin-bottom: 1.5rem;
}

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

.breadcrumb-separator {
  color: var(--text-muted);
}

.article-h1 {
  font-size: clamp(2rem, 3.5vw, 2.75rem);
  font-weight: 800;
  line-height: 1.25;
  color: var(--text-primary);
  margin-bottom: 1.25rem;
}

.article-page-meta {
  display: flex;
  align-items: center;
  gap: 1.5rem;
  font-size: 0.875rem;
  color: var(--text-secondary);
}

.article-container {
  display: grid;
  grid-template-columns: 1fr 300px;
  gap: 3.5rem;
  padding: 3.5rem 0;
}

.article-content {
  font-size: 1.05rem;
  line-height: 1.8;
  color: var(--text-primary);
}

.article-content h2 {
  font-size: 1.65rem;
  font-weight: 700;
  margin: 2.5rem 0 1.25rem 0;
  padding-bottom: 0.5rem;
  border-bottom: 1px solid var(--border-color);
  color: var(--text-primary);
}

.article-content h3 {
  font-size: 1.3rem;
  font-weight: 700;
  margin: 1.85rem 0 1rem 0;
  color: var(--text-primary);
}

.article-content p {
  margin-bottom: 1.5rem;
  color: #2D3436;
}

.article-content ul, .article-content ol {
  margin-bottom: 1.5rem;
  padding-left: 1.5rem;
}

.article-content li {
  margin-bottom: 0.5rem;
}

.article-content blockquote {
  background-color: var(--bg-subtle);
  border-left: 4px solid var(--color-primary);
  padding: 1.25rem 1.5rem;
  margin: 1.75rem 0;
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  font-style: italic;
  color: var(--text-secondary);
}

.article-content table {
  width: 100%;
  border-collapse: collapse;
  margin: 2rem 0;
  font-size: 0.925rem;
}

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

.article-content th {
  background-color: var(--bg-subtle);
  font-weight: 700;
  color: var(--text-primary);
}

.article-cta-box {
  background-color: rgba(36, 72, 63, 0.05);
  border: 1px solid var(--color-primary);
  border-radius: var(--radius-md);
  padding: 1.75rem;
  margin: 2.5rem 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
}

.article-sidebar {
  display: flex;
  flex-direction: column;
  gap: 2rem;
}

.sidebar-widget {
  background-color: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 1.5rem;
}

.sidebar-title {
  font-size: 1.05rem;
  font-weight: 700;
  margin-bottom: 1rem;
  padding-bottom: 0.6rem;
  border-bottom: 1px solid var(--border-color);
}

.related-articles-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.85rem;
}

.related-articles-list a {
  font-size: 0.9rem;
  color: var(--text-secondary);
  line-height: 1.45;
  display: block;
}

.related-articles-list a:hover {
  color: var(--color-primary);
}

/* Standalone Page Styles (About, Terms, Privacy, Sitemap) */
.page-header {
  padding: 4rem 0 3rem 0;
  background-color: var(--bg-card);
  border-bottom: 1px solid var(--border-color);
}

.page-content-wrapper {
  padding: 4rem 0;
  max-width: 900px;
}

/* Responsive Styles */
@media (max-width: 1024px) {
  .hero-grid {
    grid-template-columns: 1fr;
    gap: 3rem;
  }
  
  .advantages-grid, .pricing-grid, .articles-grid, .reviews-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .nodes-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: 2.5rem;
  }
  
  .article-container {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 768px) {
  :root {
    --header-height: 68px;
  }
  
  .nav-menu {
    position: fixed;
    top: var(--header-height);
    left: 0;
    right: 0;
    background-color: var(--bg-main);
    border-bottom: 1px solid var(--border-color);
    flex-direction: column;
    padding: 1.5rem;
    gap: 1.25rem;
    transform: translateY(-100%);
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-normal);
    box-shadow: var(--shadow-card);
  }
  
  .nav-menu.open {
    transform: translateY(0);
    opacity: 1;
    visibility: visible;
  }
  
  .mobile-menu-toggle {
    display: block;
  }
  
  .header-cta .btn {
    padding: 0.5rem 1rem;
    font-size: 0.85rem;
  }
  
  .advantages-grid, .pricing-grid, .articles-grid, .reviews-grid, .usecase-grid, .nodes-grid {
    grid-template-columns: 1fr;
  }
  
  .footer-grid {
    grid-template-columns: 1fr;
    gap: 2rem;
  }
  
  .footer-bottom {
    flex-direction: column;
    gap: 1rem;
    text-align: center;
  }
  
  .console-nodes-grid {
    grid-template-columns: 1fr;
  }
  
  .article-cta-box {
    flex-direction: column;
    align-items: flex-start;
  }
}

@media (max-width: 480px) {
  .hero-actions {
    flex-direction: column;
    align-items: stretch;
  }
  
  .hero-actions .btn {
    width: 100%;
  }
  
  .hero-features-list {
    flex-direction: column;
    gap: 0.75rem;
  }
}

/* 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;
  }
}