/* ==========================================================================
   红杏云 - Modern Financial Editorial / Oxford Newspaper Design System
   ========================================================================== */

:root {
  /* Financial Editorial Paper Palette */
  --bg-main: #f4f1ea;
  --bg-card: #e9e4d9;
  --bg-card-hover: #ded8cb;
  --bg-paper-alt: #e3ded3;
  
  --border-light: #d4ccbd;
  --border-dark: #0f1419;
  --border-accent: #881337;
  
  /* Ink typography colors */
  --text-main: #0f1419;
  --text-muted: #343a40;
  --text-dim: #646b73;
  
  /* Distinct Editorial accent colors */
  --accent-crimson: #881337;     /* Deep Burgundy Red */
  --accent-navy: #1e3a8a;        /* Oxford Navy */
  --accent-ink: #0f1419;         /* Midnight Obsidian Ink */
  --accent-gold: #92400e;        /* Vintage Amber */
  --accent-emerald: #14532d;     /* Deep Hunter Green */
  
  /* Typography families */
  --font-serif: "Noto Serif SC", "Source Serif Pro", Georgia, "Times New Roman", "Songti SC", STSong, serif;
  --font-sans: -apple-system, BlinkMacSystemFont, "SF Pro Text", "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  
  --radius-sm: 4px;
  --radius-md: 6px;
  --radius-lg: 10px;
  
  --transition-fast: 0.15s ease;
  --transition-normal: 0.25s ease;
  
  --container-max: 1240px;
}

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

html {
  scroll-behavior: smooth;
  font-size: 16px;
  background-color: var(--bg-main);
  color: var(--text-main);
  font-family: var(--font-sans);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  overflow-x: hidden;
  line-height: 1.6;
  background: var(--bg-main);
  background-image: radial-gradient(#d4ccbd 0.75px, transparent 0.75px);
  background-size: 24px 24px;
  min-height: 100vh;
}

/* Typography Hierarchy */
h1, h2, h3, h4, h5, h6, .serif-heading {
  font-family: var(--font-serif);
  color: var(--text-main);
  font-weight: 700;
  line-height: 1.25;
  letter-spacing: -0.01em;
}

p, li, span, button, input {
  font-family: var(--font-sans);
}

/* Editorial Rule Lines & Labels */
.newspaper-rule-double {
  border: none;
  border-top: 3px double var(--border-dark);
  margin: 2rem 0;
}

.newspaper-rule-thin {
  border: none;
  border-top: 1px solid var(--border-light);
  margin: 1.5rem 0;
}

.editorial-label {
  display: inline-block;
  font-family: var(--font-sans);
  font-size: 0.725rem;
  font-weight: 800;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--accent-crimson);
  background: #ecd9df;
  border: 1px solid var(--accent-crimson);
  padding: 0.2rem 0.6rem;
  margin-bottom: 0.75rem;
}

.dateline {
  font-family: var(--font-sans);
  font-size: 0.8rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--accent-navy);
  margin-bottom: 0.75rem;
  display: block;
}

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

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

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

/* Button Styles - Newspaper Style with Wine Crimson Offset Shadow */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.75rem 1.75rem;
  font-family: var(--font-sans);
  font-size: 0.9rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  border-radius: var(--radius-sm);
  transition: all var(--transition-normal);
  cursor: pointer;
  white-space: nowrap;
}

.btn-primary {
  background: var(--accent-ink);
  color: var(--bg-main);
  border: 1.5px solid var(--accent-ink);
  box-shadow: 3px 3px 0px var(--accent-crimson);
}

.btn-primary:hover {
  background: var(--accent-crimson);
  border-color: var(--accent-crimson);
  color: #ffffff;
  transform: translateY(-2px);
  box-shadow: 5px 5px 0px var(--accent-ink);
}

.btn-secondary {
  background: var(--bg-card);
  color: var(--text-main);
  border: 1.5px solid var(--border-dark);
  box-shadow: 3px 3px 0px var(--border-light);
}

.btn-secondary:hover {
  background: var(--bg-paper-alt);
  border-color: var(--accent-crimson);
  color: var(--accent-crimson);
  box-shadow: 4px 4px 0px var(--accent-crimson);
}

.btn-outline {
  background: transparent;
  color: var(--text-main);
  border: 1.5px solid var(--border-dark);
}

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

/* Header & Newspaper Masthead */
.masthead-bar {
  background: #0f172a;
  color: #f4f1ea;
  font-size: 0.75rem;
  font-family: var(--font-sans);
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  padding: 0.4rem 0;
  text-align: center;
  border-bottom: 2px solid var(--accent-crimson);
}

.header {
  background: var(--bg-main);
  border-bottom: 3px double var(--border-dark);
  padding: 1.15rem 0;
  position: sticky;
  top: 0;
  z-index: 1000;
  transition: background 0.3s;
}

.header.scrolled {
  box-shadow: 0 4px 20px rgba(15, 20, 25, 0.08);
}

.nav-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.logo {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  font-family: var(--font-serif);
  font-size: 1.8rem;
  font-weight: 900;
  letter-spacing: -0.02em;
  color: var(--text-main);
}

.logo-icon {
  width: 38px;
  height: 38px;
  background: var(--accent-crimson);
  color: #ffffff;
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-serif);
  font-weight: 900;
  font-size: 1.3rem;
  box-shadow: 2px 2px 0px var(--border-dark);
}

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

.nav-link {
  font-size: 0.9rem;
  color: var(--text-muted);
  font-weight: 700;
  letter-spacing: 0.02em;
  transition: color var(--transition-fast);
}

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

.nav-actions {
  display: flex;
  align-items: center;
  gap: 1rem;
}

/* Hamburger menu button */
.hamburger {
  display: none;
  background: transparent;
  border: none;
  cursor: pointer;
  padding: 0.5rem;
  z-index: 1001;
}

.hamburger-box {
  width: 24px;
  height: 18px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  position: relative;
}

.hamburger-inner, .hamburger-inner::before, .hamburger-inner::after {
  width: 24px;
  height: 2px;
  background-color: var(--text-main);
  border-radius: 2px;
  transition: transform 0.2s ease, opacity 0.2s ease;
}

.hamburger-inner::before, .hamburger-inner::after {
  content: "";
  position: absolute;
}

.hamburger-inner::before { top: 8px; }
.hamburger-inner::after { top: 16px; }

.hamburger.active .hamburger-inner {
  transform: translateY(8px) rotate(45deg);
}

.hamburger.active .hamburger-inner::before {
  opacity: 0;
}

.hamburger.active .hamburger-inner::after {
  transform: translateY(-16px) rotate(-90deg);
}

/* Section Common */
section {
  padding: 4.5rem 0;
  position: relative;
  border-bottom: 1px solid var(--border-light);
}

.section-header {
  text-align: center;
  max-width: 760px;
  margin: 0 auto 3rem auto;
}

.section-badge {
  display: inline-block;
  padding: 0.3rem 0.9rem;
  background: #0f172a;
  color: #ffffff;
  font-size: 0.75rem;
  font-weight: 800;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  margin-bottom: 0.75rem;
  border-left: 3px solid var(--accent-crimson);
}

.section-title {
  font-size: 2.35rem;
  font-weight: 900;
  color: var(--text-main);
  margin-bottom: 0.85rem;
}

.section-subtitle {
  font-size: 1.05rem;
  color: var(--text-muted);
  line-height: 1.6;
}

/* Hero Section - Newspaper Front Page Lead */
.hero {
  padding-top: 3.5rem;
  padding-bottom: 4rem;
  background: var(--bg-main);
  border-bottom: 3px double var(--border-dark);
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 3rem;
  align-items: start;
}

.hero-content {
  border-right: 1px solid var(--border-light);
  padding-right: 2.5rem;
}

.hero-tag {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.35rem 0.85rem;
  background: var(--bg-card);
  border: 1.5px solid var(--border-dark);
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--text-main);
  margin-bottom: 1.25rem;
}

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

.hero-title {
  font-size: 3.25rem;
  font-weight: 900;
  line-height: 1.15;
  color: var(--text-main);
  margin-bottom: 1.25rem;
}

.hero-title span {
  color: var(--accent-crimson);
  background: linear-gradient(120deg, rgba(136, 19, 55, 0.12) 0%, rgba(136, 19, 55, 0.12) 100%);
  padding: 0 0.2rem;
  border-bottom: 3px solid var(--accent-crimson);
}

.hero-desc {
  font-size: 1.1rem;
  color: var(--text-muted);
  margin-bottom: 2rem;
  line-height: 1.7;
}

.hero-cta {
  display: flex;
  align-items: center;
  gap: 1rem;
  flex-wrap: wrap;
  margin-bottom: 2rem;
}

.hero-features {
  display: flex;
  align-items: center;
  gap: 1.5rem;
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--text-dim);
  border-top: 1px solid var(--border-light);
  padding-top: 1rem;
}

.hero-feature-item {
  display: flex;
  align-items: center;
  gap: 0.4rem;
}

.hero-feature-item svg {
  color: var(--accent-crimson);
}

/* Right Newspaper Wire Dashboard */
.dashboard-card {
  background: var(--bg-card);
  border: 2px solid var(--border-dark);
  padding: 1.75rem;
  box-shadow: 6px 6px 0px var(--accent-ink);
  position: relative;
}

.dash-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-bottom: 0.85rem;
  border-bottom: 2px solid var(--border-dark);
  margin-bottom: 1.25rem;
}

.dash-title {
  font-family: var(--font-serif);
  font-size: 1.05rem;
  font-weight: 900;
  color: var(--text-main);
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.dash-status-badge {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.2rem 0.6rem;
  background: #dcfce7;
  border: 1px solid var(--accent-emerald);
  font-size: 0.75rem;
  color: var(--accent-emerald);
  font-weight: 800;
  text-transform: uppercase;
}

.dash-metrics {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0.75rem;
  margin-bottom: 1.25rem;
}

.metric-box {
  background: var(--bg-main);
  border: 1px solid var(--border-dark);
  padding: 0.75rem;
  text-align: center;
}

.metric-value {
  font-family: var(--font-serif);
  font-size: 1.25rem;
  font-weight: 900;
  color: var(--accent-crimson);
}

.metric-label {
  font-size: 0.7rem;
  color: var(--text-dim);
  font-weight: 700;
  margin-top: 0.2rem;
  text-transform: uppercase;
}

/* Dashboard Nodes List */
.nodes-list {
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
}

.node-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.6rem 0.8rem;
  background: var(--bg-main);
  border: 1px solid var(--border-light);
  font-size: 0.85rem;
}

.node-info {
  display: flex;
  align-items: center;
  gap: 0.6rem;
}

.node-name {
  font-weight: 700;
  color: var(--text-main);
}

.node-type {
  font-size: 0.7rem;
  color: var(--accent-navy);
  background: #dbeafe;
  padding: 0.15rem 0.4rem;
  border-radius: 2px;
  font-weight: 700;
}

.node-ping {
  color: var(--accent-crimson);
  font-weight: 800;
  font-family: monospace;
  font-size: 0.85rem;
}

.dash-graph {
  margin-top: 1.25rem;
  padding-top: 1rem;
  border-top: 1px solid var(--border-light);
}

.graph-title {
  font-size: 0.75rem;
  font-weight: 800;
  color: var(--text-dim);
  margin-bottom: 0.5rem;
  display: flex;
  justify-content: space-between;
  text-transform: uppercase;
}

.graph-bars {
  display: flex;
  align-items: flex-end;
  gap: 4px;
  height: 45px;
}

.graph-bar {
  flex: 1;
  background: var(--accent-crimson);
  border-radius: 1px 1px 0 0;
  animation: pulseBar 2s ease-in-out infinite alternate;
}

@keyframes pulseBar {
  0% { opacity: 0.5; transform: scaleY(0.7); }
  100% { opacity: 1; transform: scaleY(1); }
}

/* Bento Grid Features Section */
.bento-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.75rem;
}

.bento-card {
  background: var(--bg-card);
  border: 1.5px solid var(--border-dark);
  padding: 2rem;
  position: relative;
  transition: transform var(--transition-normal);
  box-shadow: 4px 4px 0px var(--border-dark);
}

.bento-card:hover {
  transform: translateY(-3px);
  box-shadow: 6px 6px 0px var(--accent-crimson);
  border-color: var(--accent-crimson);
}

.bento-icon {
  width: 44px;
  height: 44px;
  border-radius: var(--radius-sm);
  background: #0f172a;
  border: 1px solid var(--border-dark);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #ffffff;
  margin-bottom: 1.25rem;
}

.bento-title {
  font-size: 1.35rem;
  font-weight: 800;
  color: var(--text-main);
  margin-bottom: 0.75rem;
}

.bento-text {
  font-size: 0.95rem;
  color: var(--text-muted);
  line-height: 1.65;
}

/* Global Nodes Network Section */
.nodes-section-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
  align-items: center;
}

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

.node-stat-card {
  background: var(--bg-card);
  border: 1.5px solid var(--border-dark);
  padding: 1.25rem;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  box-shadow: 3px 3px 0px var(--border-dark);
}

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

.node-stat-name {
  font-family: var(--font-serif);
  font-size: 1rem;
  font-weight: 800;
  color: var(--text-main);
}

.node-stat-ping {
  font-size: 0.85rem;
  font-weight: 800;
  color: var(--accent-crimson);
  font-family: monospace;
}

.node-stat-desc {
  font-size: 0.8rem;
  color: var(--text-dim);
}

.node-stat-bar {
  height: 4px;
  background: var(--border-light);
  overflow: hidden;
}

.node-stat-bar-fill {
  height: 100%;
  background: var(--accent-crimson);
}

/* Streaming & AI Section */
.ai-stream-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2rem;
}

.ai-stream-card {
  background: var(--bg-card);
  border: 1.5px solid var(--border-dark);
  padding: 2.25rem;
  box-shadow: 5px 5px 0px var(--border-dark);
}

.card-tag {
  font-size: 0.725rem;
  font-weight: 800;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: #ffffff;
  background: var(--accent-navy);
  padding: 0.2rem 0.6rem;
  display: inline-block;
  margin-bottom: 0.85rem;
}

.ai-stream-card h3 {
  font-size: 1.6rem;
  color: var(--text-main);
  font-weight: 800;
  margin-bottom: 1rem;
}

.ai-stream-card p {
  font-size: 0.95rem;
  color: var(--text-muted);
  line-height: 1.65;
  margin-bottom: 1.5rem;
}

.logo-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.chip {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.35rem 0.85rem;
  background: var(--bg-main);
  border: 1px solid var(--border-dark);
  font-size: 0.85rem;
  color: var(--text-main);
  font-weight: 700;
}

.chip-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background-color: var(--accent-crimson);
}

/* SaaS Pricing Section - Rate Card */
.pricing-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
  align-items: stretch;
}

.pricing-card {
  background: var(--bg-card);
  border: 1.5px solid var(--border-dark);
  padding: 2.5rem 2rem;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  position: relative;
  transition: transform var(--transition-normal);
  box-shadow: 4px 4px 0px var(--border-dark);
}

.pricing-card:hover {
  transform: translateY(-4px);
  box-shadow: 6px 6px 0px var(--accent-crimson);
}

.pricing-card.featured {
  border: 2.5px solid var(--accent-crimson);
  background: #fdf8f0;
  box-shadow: 6px 6px 0px var(--accent-crimson);
}

.featured-badge {
  position: absolute;
  top: -14px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--accent-crimson);
  color: #ffffff;
  font-size: 0.75rem;
  font-weight: 800;
  padding: 0.25rem 1rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  box-shadow: 2px 2px 0px var(--border-dark);
}

.plan-name {
  font-size: 1.35rem;
  font-weight: 800;
  color: var(--text-main);
  margin-bottom: 0.5rem;
}

.plan-price-box {
  margin: 1.25rem 0;
  display: flex;
  align-items: baseline;
  gap: 0.25rem;
}

.plan-currency {
  font-family: var(--font-serif);
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--accent-crimson);
}

.plan-price {
  font-family: var(--font-serif);
  font-size: 2.85rem;
  font-weight: 900;
  color: var(--text-main);
  line-height: 1;
}

.plan-cycle {
  font-size: 0.9rem;
  color: var(--text-dim);
}

.plan-desc {
  font-size: 0.875rem;
  color: var(--text-muted);
  margin-bottom: 1.5rem;
  padding-bottom: 1.5rem;
  border-bottom: 1px solid var(--border-light);
}

.plan-features {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.85rem;
  margin-bottom: 2rem;
}

.plan-features li {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  font-size: 0.9rem;
  color: var(--text-muted);
}

.plan-features li svg {
  color: var(--accent-crimson);
  flex-shrink: 0;
}

/* SEO Blog Article Cards Grid */
.blog-cards-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
}

.blog-card {
  background: var(--bg-card);
  border: 1.5px solid var(--border-dark);
  padding: 1.75rem;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  transition: transform var(--transition-normal);
  box-shadow: 4px 4px 0px var(--border-dark);
}

.blog-card:hover {
  transform: translateY(-3px);
  border-color: var(--accent-crimson);
  box-shadow: 6px 6px 0px var(--accent-crimson);
}

.blog-category {
  font-size: 0.725rem;
  font-weight: 800;
  color: var(--accent-crimson);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: 0.75rem;
  background: #fce7f3;
  padding: 0.15rem 0.5rem;
  border: 1px solid var(--accent-crimson);
  display: inline-block;
}

.blog-card-title {
  font-family: var(--font-serif);
  font-size: 1.25rem;
  font-weight: 800;
  color: var(--text-main);
  line-height: 1.35;
  margin-bottom: 0.75rem;
}

.blog-card-title a:hover {
  color: var(--accent-crimson);
}

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

.blog-card-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 0.8rem;
  color: var(--text-dim);
  padding-top: 1rem;
  border-top: 1px solid var(--border-light);
}

.blog-read-more {
  color: var(--text-main);
  font-weight: 800;
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
  text-transform: uppercase;
  font-size: 0.75rem;
  letter-spacing: 0.05em;
}

.blog-read-more:hover {
  color: var(--accent-crimson);
}

/* Testimonials Section */
.testimonials-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.75rem;
}

.testimonial-card {
  background: var(--bg-card);
  border: 1.5px solid var(--border-dark);
  padding: 1.75rem;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  box-shadow: 4px 4px 0px var(--border-dark);
}

.testi-text {
  font-family: var(--font-serif);
  font-size: 0.975rem;
  color: var(--text-main);
  line-height: 1.65;
  margin-bottom: 1.25rem;
  font-style: italic;
}

.testi-user {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  border-top: 1px solid var(--border-light);
  padding-top: 1rem;
}

.user-avatar {
  width: 38px;
  height: 38px;
  border-radius: 50%;
  background: var(--accent-crimson);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-serif);
  font-weight: 800;
  color: #ffffff;
  font-size: 0.9rem;
}

.user-name {
  font-size: 0.9rem;
  font-weight: 800;
  color: var(--text-main);
}

.user-role {
  font-size: 0.75rem;
  color: var(--text-dim);
}

/* FAQ Accordion Section */
.faq-list {
  max-width: 820px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.faq-item {
  background: var(--bg-card);
  border: 1.5px solid var(--border-dark);
  overflow: hidden;
  transition: border-color var(--transition-fast);
  box-shadow: 3px 3px 0px var(--border-dark);
}

.faq-item.active {
  border-color: var(--accent-crimson);
  box-shadow: 4px 4px 0px var(--accent-crimson);
}

.faq-question {
  width: 100%;
  padding: 1.25rem 1.5rem;
  background: transparent;
  border: none;
  color: var(--text-main);
  font-family: var(--font-serif);
  font-size: 1.1rem;
  font-weight: 800;
  text-align: left;
  display: flex;
  align-items: center;
  justify-content: space-between;
  cursor: pointer;
  outline: none;
}

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

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

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.35s ease-out, padding 0.35s ease;
  padding: 0 1.5rem;
  color: var(--text-muted);
  font-size: 0.95rem;
  line-height: 1.7;
}

.faq-item.active .faq-answer {
  padding: 0 1.5rem 1.25rem 1.5rem;
}

/* Footer Section */
.footer {
  background: #ded8cb;
  border-top: 3px double var(--border-dark);
  padding: 4rem 0 2rem 0;
  color: var(--text-muted);
  font-size: 0.9rem;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr repeat(3, 1fr);
  gap: 3rem;
  margin-bottom: 3rem;
}

.footer-brand p {
  margin-top: 1rem;
  color: var(--text-muted);
  font-size: 0.875rem;
  line-height: 1.6;
}

.footer-col-title {
  font-family: var(--font-serif);
  color: var(--text-main);
  font-size: 1.05rem;
  font-weight: 800;
  margin-bottom: 1.25rem;
  border-bottom: 2px solid var(--border-dark);
  padding-bottom: 0.4rem;
  display: inline-block;
}

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

.footer-links a {
  color: var(--text-muted);
  font-weight: 600;
  transition: color var(--transition-fast);
}

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

/* Recommended Partner Links */
.footer-partners {
  padding: 1.5rem 0;
  border-top: 1px solid var(--border-light);
  border-bottom: 1px solid var(--border-light);
  margin-bottom: 2rem;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 2rem;
  flex-wrap: wrap;
  font-size: 0.85rem;
  color: var(--text-dim);
}

.footer-partners span {
  color: var(--text-main);
  font-weight: 800;
  font-family: var(--font-serif);
}

.partner-link {
  color: var(--text-main);
  font-weight: 700;
  transition: color var(--transition-fast);
  text-decoration: underline;
  text-underline-offset: 3px;
  text-decoration-color: var(--border-dark);
}

.partner-link:hover {
  color: var(--accent-crimson);
  text-decoration-color: var(--accent-crimson);
}

.footer-bottom {
  text-align: center;
  font-size: 0.8rem;
  color: var(--text-dim);
}

/* Article Template Styles */
.article-header {
  padding-top: 4.5rem;
  padding-bottom: 3rem;
  text-align: center;
  max-width: 820px;
  margin: 0 auto;
}

.breadcrumb {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  font-size: 0.85rem;
  color: var(--text-dim);
  margin-bottom: 1.5rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  font-weight: 700;
}

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

.article-title {
  font-family: var(--font-serif);
  font-size: 2.75rem;
  font-weight: 900;
  color: var(--text-main);
  line-height: 1.2;
  margin-bottom: 1.25rem;
}

.article-meta {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 1.5rem;
  font-size: 0.85rem;
  color: var(--text-dim);
  border-top: 1px solid var(--border-light);
  border-bottom: 1px solid var(--border-light);
  padding: 0.75rem 0;
  font-weight: 600;
}

.article-body {
  max-width: 820px;
  margin: 0 auto 5rem auto;
  background: var(--bg-card);
  border: 1.5px solid var(--border-dark);
  padding: 3.5rem 3rem;
  color: var(--text-main);
  line-height: 1.85;
  font-size: 1.05rem;
  box-shadow: 6px 6px 0px var(--border-dark);
}

.article-body h2 {
  font-family: var(--font-serif);
  font-size: 1.85rem;
  color: var(--text-main);
  font-weight: 900;
  margin: 2.5rem 0 1.25rem 0;
  padding-bottom: 0.5rem;
  border-bottom: 2px solid var(--border-dark);
}

.article-body h3 {
  font-family: var(--font-serif);
  font-size: 1.35rem;
  color: var(--text-main);
  font-weight: 800;
  margin: 1.85rem 0 0.85rem 0;
}

.article-body p {
  margin-bottom: 1.35rem;
  color: var(--text-muted);
}

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

.article-body li {
  margin-bottom: 0.5rem;
  color: var(--text-muted);
}

.article-body table {
  width: 100%;
  border-collapse: collapse;
  margin: 2rem 0;
  font-size: 0.95rem;
}

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

.article-body th {
  background: var(--bg-paper-alt);
  color: var(--text-main);
  font-weight: 800;
  font-family: var(--font-serif);
}

.article-cta-box {
  background: #fdf8f0;
  border: 2px solid var(--accent-crimson);
  padding: 2.25rem;
  text-align: center;
  margin: 2.5rem 0;
  box-shadow: 4px 4px 0px var(--accent-crimson);
}

.article-cta-box h4 {
  font-family: var(--font-serif);
  font-size: 1.4rem;
  color: var(--text-main);
  margin-bottom: 0.75rem;
}

.article-cta-box p {
  color: var(--text-muted);
  font-size: 0.95rem;
  margin-bottom: 1.25rem;
}

.related-articles {
  max-width: 820px;
  margin: 0 auto 5rem auto;
}

.related-title {
  font-family: var(--font-serif);
  font-size: 1.6rem;
  color: var(--text-main);
  font-weight: 800;
  margin-bottom: 1.5rem;
  border-bottom: 2px solid var(--border-dark);
  padding-bottom: 0.5rem;
}

/* Page Legal / Sitemap Content */
.legal-content {
  max-width: 850px;
  margin: 4.5rem auto 5rem auto;
  background: var(--bg-card);
  border: 1.5px solid var(--border-dark);
  padding: 3.5rem;
  box-shadow: 6px 6px 0px var(--border-dark);
}

.legal-content h1 {
  font-family: var(--font-serif);
  font-size: 2.5rem;
  color: var(--text-main);
  margin-bottom: 1.5rem;
  border-bottom: 3px double var(--border-dark);
  padding-bottom: 0.75rem;
}

.legal-content h2 {
  font-family: var(--font-serif);
  font-size: 1.5rem;
  color: var(--text-main);
  margin: 2rem 0 1rem 0;
  border-bottom: 1.5px solid var(--border-dark);
  padding-bottom: 0.35rem;
}

.legal-content p, .legal-content li {
  color: var(--text-muted);
  line-height: 1.75;
  margin-bottom: 1rem;
}

/* Mobile & Responsive Adjustments */
@media (max-width: 1024px) {
  .hero-grid {
    grid-template-columns: 1fr;
    gap: 2.5rem;
  }
  
  .hero-content {
    border-right: none;
    padding-right: 0;
    text-align: center;
  }
  
  .hero-tag {
    margin-left: auto;
    margin-right: auto;
  }
  
  .hero-cta {
    justify-content: center;
  }
  
  .hero-features {
    justify-content: center;
  }

  .bento-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .bento-card.span-2 {
    grid-column: span 2;
  }

  .pricing-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .blog-cards-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .testimonials-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .footer-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 2rem;
  }
}

@media (max-width: 768px) {
  .hamburger {
    display: block;
  }

  .nav-menu {
    position: fixed;
    top: 0;
    right: -100%;
    width: 80%;
    max-width: 320px;
    height: 100vh;
    background: var(--bg-main);
    border-left: 2px solid var(--border-dark);
    flex-direction: column;
    align-items: flex-start;
    padding: 6rem 2rem 2rem 2rem;
    gap: 1.5rem;
    transition: right 0.3s ease;
    box-shadow: -10px 0 30px rgba(0, 0, 0, 0.15);
    z-index: 1000;
  }

  .nav-menu.active {
    right: 0;
  }

  .nav-actions {
    display: none;
  }

  .hero-title {
    font-size: 2.35rem;
  }

  .section-title {
    font-size: 1.85rem;
  }

  .bento-grid {
    grid-template-columns: 1fr;
  }

  .bento-card.span-2 {
    grid-column: span 1;
  }

  .nodes-section-grid {
    grid-template-columns: 1fr;
  }

  .ai-stream-grid {
    grid-template-columns: 1fr;
  }

  .pricing-grid {
    grid-template-columns: 1fr;
  }

  .blog-cards-grid {
    grid-template-columns: 1fr;
  }

  .testimonials-grid {
    grid-template-columns: 1fr;
  }

  .footer-grid {
    grid-template-columns: 1fr;
  }

  .article-body {
    padding: 2rem 1.25rem;
  }

  .legal-content {
    padding: 2rem 1.25rem;
  }
}

@media (max-width: 430px) {
  .hero-cta {
    flex-direction: column;
    width: 100%;
  }

  .hero-cta .btn {
    width: 100%;
  }
  
  .node-card-grid {
    grid-template-columns: 1fr;
  }
}

/* Prefers 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;
  }
}