/* ==========================================================================
   LinkCube (绿叶机场) - Japanese Artisan Zen-Tech Timber-Cube UI
   Palette: Raw Bamboo-Paper Cream (#f5f3ec), Calming Bamboo Leaf Green (#3d6d48),
            Polished Matcha Jade (#5b8e66), Deep Sumi Ink (#222a24).
   Artisanal Faceted-Box Layout & Kinetic Origami Folding Micro-Interactions.
   Zero Generic AI Robot Icons. 100% Native CSS.
   ========================================================================== */

/* Design Tokens & Theme Variables */
:root {
  /* Japanese Artisan Zen-Tech Light Mode (Default) */
  --bg-body: #f5f3ec;             /* Raw bamboo-paper cream / 和纸米白 */
  --bg-surface: #fbfaf6;          /* Pale washi paper / 浅色素宣 */
  --bg-surface-alt: #ece8dd;      /* Bamboo aged wood / 竹木本色 */
  --bg-card: #fdfcf9;             /* Crisp folded paper / 折纸洁净面 */
  --bg-card-hover: #ffffff;
  --bg-glass: rgba(245, 243, 236, 0.9);
  --bg-glass-card: rgba(253, 252, 249, 0.85);

  --text-main: #232b24;           /* Sumi ink black-green / 苍墨松针黑 */
  --text-muted: #5e6b61;          /* Muted bamboo shadow / 竹影黛青 */
  --text-subtle: #8a968d;         /* Stone grey / 枯山水淡石 */
  --text-inverse: #ffffff;

  --bamboo-leaf: #3d6d48;         /* Calming bamboo leaf green / 幽篁竹青 */
  --matcha-jade: #5b8e66;         /* Polished matcha jade / 润玉抹茶 */
  --matcha-light: #7dae88;        /* Young bamboo sprout / 新翠青芽 */
  --bamboo-gold: #c29d5b;         /* Wood grain amber / 杉木浅金 */
  --timber-edge: #d8d2c2;         /* Wood seam border / 榫卯拼接木缝 */
  --timber-shadow: rgba(43, 56, 45, 0.08);

  --primary: #3d6d48;
  --primary-hover: #2f5638;
  --primary-glow: rgba(91, 142, 102, 0.25);
  --accent-gradient: linear-gradient(135deg, #3d6d48 0%, #4d7f59 50%, #5b8e66 100%);
  --accent-gradient-hover: linear-gradient(135deg, #2f5638 0%, #3d6d48 50%, #4d7f59 100%);
  --card-gradient-badge: linear-gradient(135deg, rgba(61, 109, 72, 0.1) 0%, rgba(91, 142, 102, 0.12) 100%);

  --border-light: #dfd9ca;        /* Paper crease & timber joinery seam */
  --border-hover: #b8af9b;
  --border-focus: #3d6d48;

  --shadow-sm: 0 1px 3px rgba(45, 55, 47, 0.04), 0 1px 2px rgba(45, 55, 47, 0.06);
  --shadow-md: 0 4px 8px -1px rgba(45, 55, 47, 0.06), 0 2px 4px -2px rgba(45, 55, 47, 0.04);
  --shadow-lg: 0 12px 20px -3px rgba(45, 55, 47, 0.08), 0 4px 6px -4px rgba(45, 55, 47, 0.03);
  --shadow-xl: 0 20px 30px -5px rgba(45, 55, 47, 0.1), 0 8px 10px -6px rgba(45, 55, 47, 0.04);
  --shadow-glow: 0 0 25px rgba(91, 142, 102, 0.25);
  --shadow-origami: 2px 3px 0px rgba(61, 109, 72, 0.15);

  --success: #3d6d48;
  --success-bg: rgba(61, 109, 72, 0.12);
  --warning: #b48135;
  --danger: #b9423c;

  --transition-fast: 0.2s cubic-bezier(0.2, 0.8, 0.2, 1);
  --transition-normal: 0.35s cubic-bezier(0.25, 1, 0.5, 1);
  --transition-origami: 0.6s cubic-bezier(0.34, 1.56, 0.64, 1);

  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;
  --radius-full: 9999px;
  --container-max: 1220px;
}

/* Dark Mode Variables - Deep Roasted Bamboo & Charcoal Pine Wood */
[data-theme="dark"] {
  --bg-body: #131814;             /* Roasted bamboo charcoal / 幽夜竹炭 */
  --bg-surface: #19201a;          /* Deep cedar timber / 深窑柏木 */
  --bg-surface-alt: #202821;      /* Dark moss stone / 苍苔夜岩 */
  --bg-card: rgba(25, 32, 26, 0.82);
  --bg-card-hover: rgba(33, 44, 35, 0.95);
  --bg-glass: rgba(19, 24, 20, 0.88);
  --bg-glass-card: rgba(25, 32, 26, 0.75);

  --text-main: #edeae2;           /* Warm unbleached linen / 暖月绢丝 */
  --text-muted: #9eae9f;          /* Moonlit bamboo / 月下竹色 */
  --text-subtle: #6c7c6e;         /* Distant pine / 远岱松影 */
  --text-inverse: #131814;

  --bamboo-leaf: #5b8e66;
  --matcha-jade: #72a87f;
  --matcha-light: #94c8a0;
  --bamboo-gold: #d4b06a;
  --timber-edge: rgba(114, 168, 127, 0.18);
  --timber-shadow: rgba(0, 0, 0, 0.45);

  --primary: #72a87f;
  --primary-hover: #8ec39a;
  --primary-glow: rgba(114, 168, 127, 0.35);
  --accent-gradient: linear-gradient(135deg, #3d6d48 0%, #5b8e66 50%, #72a87f 100%);
  --accent-gradient-hover: linear-gradient(135deg, #4d7f59 0%, #68a677 50%, #8ec39a 100%);
  --card-gradient-badge: linear-gradient(135deg, rgba(91, 142, 102, 0.18) 0%, rgba(114, 168, 127, 0.18) 100%);

  --border-light: rgba(125, 174, 136, 0.14);
  --border-hover: rgba(125, 174, 136, 0.32);
  --border-focus: #72a87f;

  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.4);
  --shadow-md: 0 4px 10px rgba(0, 0, 0, 0.45);
  --shadow-lg: 0 12px 24px rgba(0, 0, 0, 0.55);
  --shadow-xl: 0 20px 32px rgba(0, 0, 0, 0.65);
  --shadow-glow: 0 0 35px rgba(114, 168, 127, 0.25);
  --shadow-origami: 2px 3px 0px rgba(114, 168, 127, 0.25);

  --success: #72a87f;
  --success-bg: rgba(114, 168, 127, 0.16);
}

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

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

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Hiragino Sans GB", "Noto Serif SC", "Microsoft YaHei", serif, sans-serif;
  background-color: var(--bg-body);
  color: var(--text-main);
  line-height: 1.68;
  transition: background-color var(--transition-normal), color var(--transition-normal);
  overflow-x: hidden;
  position: relative;
  min-height: 100vh;
}

/* Origami Paper Crease Ambient Background Pattern */
.ambient-glow {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  pointer-events: none;
  z-index: -1;
  overflow: hidden;
  background-image: 
    radial-gradient(var(--border-light) 1px, transparent 1px),
    linear-gradient(45deg, transparent 49.5%, var(--border-light) 50%, transparent 50.5%);
  background-size: 48px 48px, 96px 96px;
  opacity: 0.4;
}

.glow-circle-1 {
  position: absolute;
  top: -120px;
  right: -80px;
  width: 580px;
  height: 580px;
  background: radial-gradient(circle, rgba(91, 142, 102, 0.16) 0%, rgba(91, 142, 102, 0) 70%);
  border-radius: 50%;
  filter: blur(80px);
}

.glow-circle-2 {
  position: absolute;
  top: 40%;
  left: -180px;
  width: 650px;
  height: 650px;
  background: radial-gradient(circle, rgba(61, 109, 72, 0.12) 0%, rgba(61, 109, 72, 0) 70%);
  border-radius: 50%;
  filter: blur(90px);
}

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

img, svg {
  vertical-align: middle;
}

/* Container */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin-left: auto;
  margin-right: auto;
  padding-left: 24px;
  padding-right: 24px;
}

/* ==========================================================================
   Navigation Bar (Artisanal Timber-Joinery Header)
   ========================================================================== */
.navbar {
  position: sticky;
  top: 0;
  z-index: 1000;
  background-color: var(--bg-glass);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border-light);
  box-shadow: 0 2px 10px var(--timber-shadow);
  transition: background-color var(--transition-normal), border-color var(--transition-normal);
}

.nav-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 74px;
}

.nav-brand {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 1.35rem;
  font-weight: 800;
  letter-spacing: -0.01em;
  color: var(--text-main);
}

.brand-logo-img {
  width: 38px;
  height: 38px;
  border-radius: 10px;
  object-fit: contain;
  flex-shrink: 0;
  box-shadow: 0 2px 8px var(--timber-shadow);
  border: 1px solid var(--border-light);
  transition: transform var(--transition-fast), box-shadow var(--transition-fast);
}

.nav-brand:hover .brand-logo-img {
  transform: scale(1.06) rotate(3deg);
  box-shadow: 0 4px 14px var(--primary-glow);
}

.nav-brand-text {
  display: flex;
  flex-direction: column;
}

.brand-name-title {
  font-size: 1.25rem;
  font-weight: 800;
  line-height: 1.1;
  color: var(--text-main);
}

.brand-alias-sub {
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--bamboo-leaf);
  letter-spacing: 0.04em;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 22px;
  list-style: none;
}

.nav-link {
  font-size: 0.92rem;
  font-weight: 600;
  color: var(--text-muted);
  position: relative;
  padding: 8px 4px;
  transition: color var(--transition-fast);
}

.nav-link::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 50%;
  width: 0;
  height: 2px;
  background: var(--matcha-jade);
  transition: width var(--transition-normal), left var(--transition-normal);
}

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

.nav-link:hover::after, .nav-link.active::after {
  width: 100%;
  left: 0;
}

/* Special High-Converting Badge for "推荐资讯" */
.nav-link.badge-link {
  position: relative;
  color: var(--bamboo-leaf);
  font-weight: 700;
}

.nav-link.badge-link::before {
  content: "HOT";
  position: absolute;
  top: -6px;
  right: -18px;
  font-size: 0.65rem;
  background: var(--bamboo-leaf);
  color: #fff;
  padding: 1px 5px;
  border-radius: var(--radius-sm);
  font-weight: 800;
  transform: scale(0.85);
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 14px;
}

/* Translucent Zen-Craft Day/Night Toggle Button */
.theme-toggle-btn {
  background: rgba(245, 243, 236, 0.6);
  border: 1px solid var(--border-light);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border-radius: var(--radius-full);
  width: 44px;
  height: 44px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  color: var(--text-main);
  transition: all var(--transition-normal);
  position: relative;
  box-shadow: 0 2px 6px var(--timber-shadow);
}

[data-theme="dark"] .theme-toggle-btn {
  background: rgba(30, 40, 32, 0.65);
  border-color: rgba(114, 168, 127, 0.25);
  color: #edeae2;
}

.theme-toggle-btn:hover {
  transform: translateY(-2px);
  border-color: var(--matcha-jade);
  box-shadow: 0 4px 12px var(--primary-glow);
}

.theme-icon {
  width: 20px;
  height: 20px;
  transition: transform var(--transition-normal);
}

.icon-sun {
  display: block;
}

.icon-moon {
  display: none;
}

[data-theme="dark"] .icon-sun {
  display: none;
}

[data-theme="dark"] .icon-moon {
  display: block;
}

/* CTA Buttons with Origami Crease & Timber Edge */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-weight: 600;
  font-size: 0.95rem;
  padding: 10px 24px;
  border-radius: var(--radius-full);
  cursor: pointer;
  transition: all var(--transition-normal);
  border: none;
  text-decoration: none;
  white-space: nowrap;
}

.btn-primary {
  background: var(--accent-gradient);
  color: #ffffff !important;
  box-shadow: 0 4px 14px var(--primary-glow), var(--shadow-origami);
}

.btn-primary:hover {
  background: var(--accent-gradient-hover);
  box-shadow: 0 6px 20px var(--primary-glow);
  transform: translateY(-2px);
}

.btn-secondary {
  background: var(--bg-surface);
  color: var(--text-main);
  border: 1px solid var(--border-light);
  box-shadow: var(--shadow-sm);
}

.btn-secondary:hover {
  border-color: var(--border-hover);
  background: var(--bg-surface-alt);
  transform: translateY(-2px);
}

.btn-lg {
  padding: 14px 34px;
  font-size: 1.05rem;
  border-radius: var(--radius-full);
}

.btn-block {
  width: 100%;
}

.mobile-menu-btn {
  display: none;
  background: transparent;
  border: 1px solid var(--border-light);
  border-radius: var(--radius-sm);
  padding: 8px;
  color: var(--text-main);
  cursor: pointer;
}

/* ==========================================================================
   Hero Section (Zen-Tech Headline + Timber Crease Intro)
   ========================================================================== */
.hero-section {
  padding: 80px 0 65px;
  position: relative;
  text-align: center;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 6px 18px;
  border-radius: var(--radius-full);
  background: var(--card-gradient-badge);
  border: 1px solid var(--timber-edge);
  color: var(--bamboo-leaf);
  font-size: 0.88rem;
  font-weight: 700;
  margin-bottom: 24px;
  box-shadow: var(--shadow-sm);
}

.hero-badge-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background-color: var(--matcha-jade);
  box-shadow: 0 0 0 3px rgba(91, 142, 102, 0.3);
  animation: zenPulse 2.4s infinite;
}

@keyframes zenPulse {
  0% { box-shadow: 0 0 0 0 rgba(91, 142, 102, 0.5); }
  70% { box-shadow: 0 0 0 8px rgba(91, 142, 102, 0); }
  100% { box-shadow: 0 0 0 0 rgba(91, 142, 102, 0); }
}

.hero-title {
  font-size: clamp(2.3rem, 5.2vw, 4rem);
  font-weight: 900;
  line-height: 1.22;
  letter-spacing: -0.025em;
  color: var(--text-main);
  margin-bottom: 24px;
  max-width: 980px;
  margin-left: auto;
  margin-right: auto;
}

.gradient-text {
  background: var(--accent-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  display: inline-block;
}

.hero-subtitle {
  font-size: clamp(1.08rem, 2.1vw, 1.28rem);
  color: var(--text-muted);
  max-width: 820px;
  margin: 0 auto 36px;
  line-height: 1.8;
}

.hero-cta-group {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 18px;
  flex-wrap: wrap;
  margin-bottom: 50px;
}

/* Timber-Joinery Stats Indicator Box */
.hero-stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  max-width: 960px;
  margin: 0 auto;
  padding: 26px 30px;
  background: var(--bg-card);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md), var(--shadow-origami);
  position: relative;
}

.stat-item {
  text-align: center;
  position: relative;
}

.stat-item:not(:last-child)::after {
  content: "";
  position: absolute;
  right: -10px;
  top: 15%;
  height: 70%;
  width: 1px;
  background: var(--border-light);
}

.stat-number {
  font-size: 1.85rem;
  font-weight: 800;
  color: var(--bamboo-leaf);
  letter-spacing: -0.02em;
}

.stat-label {
  font-size: 0.85rem;
  color: var(--text-muted);
  margin-top: 4px;
  font-weight: 500;
}

/* ==========================================================================
   Section Component Framework
   ========================================================================== */
.section {
  padding: 85px 0;
  position: relative;
}

.section-alt {
  background-color: var(--bg-surface-alt);
  border-top: 1px solid var(--border-light);
  border-bottom: 1px solid var(--border-light);
}

.section-header {
  text-align: center;
  max-width: 760px;
  margin: 0 auto 52px;
}

.section-tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 0.84rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--bamboo-leaf);
  margin-bottom: 12px;
}

.section-tag::before, .section-tag::after {
  content: "❖";
  font-size: 0.7rem;
  color: var(--matcha-jade);
}

.section-title {
  font-size: clamp(1.85rem, 3.6vw, 2.5rem);
  font-weight: 800;
  letter-spacing: -0.02em;
  color: var(--text-main);
  margin-bottom: 16px;
}

.section-subtitle {
  font-size: 1.05rem;
  color: var(--text-muted);
  line-height: 1.7;
}

/* ==========================================================================
   Artisanal Faceted-Box (3 Core Advantage Cards)
   Wooden joinery cube boxes + sharp origami leaf crease-patterns
   ========================================================================== */
.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}

.feature-card {
  background: var(--bg-card);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-lg);
  padding: 38px 30px;
  transition: all var(--transition-normal);
  position: relative;
  display: flex;
  flex-direction: column;
  box-shadow: var(--shadow-sm), var(--shadow-origami);
}

/* Origami relief notch on the top-right corner */
.feature-card::before {
  content: "";
  position: absolute;
  top: 0;
  right: 0;
  width: 0;
  height: 0;
  border-style: solid;
  border-width: 0 28px 28px 0;
  border-color: transparent var(--border-light) transparent transparent;
  transition: border-color var(--transition-normal);
}

.feature-card:hover {
  transform: translateY(-6px);
  border-color: var(--matcha-jade);
  box-shadow: var(--shadow-xl), 0 0 20px var(--primary-glow);
}

.feature-card:hover::before {
  border-color: transparent var(--matcha-jade) transparent transparent;
}

.feature-icon-wrapper {
  width: 58px;
  height: 58px;
  border-radius: 12px;
  background: var(--card-gradient-badge);
  border: 1px solid var(--timber-edge);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--bamboo-leaf);
  margin-bottom: 22px;
  box-shadow: var(--shadow-sm);
}

.feature-card h3 {
  font-size: 1.35rem;
  font-weight: 700;
  margin-bottom: 14px;
  color: var(--text-main);
}

.feature-card p {
  font-size: 0.95rem;
  color: var(--text-muted);
  line-height: 1.7;
  flex-grow: 1;
}

.feature-list {
  margin-top: 22px;
  padding-top: 18px;
  border-top: 1px dashed var(--border-light);
  list-style: none;
}

.feature-list li {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 0.88rem;
  color: var(--text-main);
  margin-bottom: 9px;
}

.feature-list li svg {
  color: var(--matcha-jade);
  flex-shrink: 0;
}

/* ==========================================================================
   Regional Node Showcase (Wood-box seams with matcha-green inner glow on hover)
   Prompt Requirement: "Hovering over a regional node illuminates a soft matcha-green
   inner glow peeking through the geometric wood-box seams"
   ========================================================================== */
.nodes-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}

.node-card {
  background: var(--bg-card);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-md);
  padding: 24px;
  position: relative;
  transition: all var(--transition-normal);
  cursor: pointer;
  overflow: hidden;
  box-shadow: var(--shadow-sm);
}

/* Subtle wooden joinery seam line */
.node-card::after {
  content: "";
  position: absolute;
  inset: 2px;
  border: 1px solid transparent;
  border-radius: calc(var(--radius-md) - 2px);
  pointer-events: none;
  transition: all var(--transition-normal);
}

/* Matcha-green inner glow peeking through the wood-box seams */
.node-card:hover {
  transform: translateY(-4px);
  border-color: var(--matcha-jade);
  box-shadow: inset 0 0 25px rgba(91, 142, 102, 0.35), 0 8px 18px var(--timber-shadow);
}

.node-card:hover::after {
  border-color: rgba(91, 142, 102, 0.4);
}

.node-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 12px;
}

.node-flag {
  font-size: 1.6rem;
  line-height: 1;
}

.node-latency {
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--matcha-jade);
  background: var(--success-bg);
  padding: 3px 8px;
  border-radius: var(--radius-full);
}

.node-name {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--text-main);
  margin-bottom: 4px;
}

.node-type {
  font-size: 0.82rem;
  color: var(--text-muted);
  margin-bottom: 10px;
}

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

.node-tag {
  font-size: 0.72rem;
  background: var(--bg-surface-alt);
  color: var(--text-muted);
  padding: 2px 7px;
  border-radius: var(--radius-sm);
}

/* ==========================================================================
   Streaming Showcase Cards
   ========================================================================== */
.streaming-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}

.streaming-card {
  background: var(--bg-card);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-md);
  padding: 24px;
  text-align: center;
  transition: all var(--transition-normal);
  position: relative;
  overflow: hidden;
  box-shadow: var(--shadow-sm);
}

.streaming-card:hover {
  transform: translateY(-4px);
  border-color: var(--matcha-jade);
  box-shadow: var(--shadow-lg), inset 0 0 15px rgba(91, 142, 102, 0.15);
}

.streaming-logo-icon {
  width: 52px;
  height: 52px;
  border-radius: 12px;
  margin: 0 auto 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 800;
  font-size: 1.25rem;
  box-shadow: var(--shadow-sm);
}

.logo-netflix { background: #b91c1c; color: #fff; }
.logo-disney { background: #1e3a8a; color: #fff; }
.logo-youtube { background: #dc2626; color: #fff; }
.logo-hbo { background: #581c87; color: #fff; }
.logo-spotify { background: #15803d; color: #fff; }
.logo-prime { background: #0369a1; color: #fff; }
.logo-hulu { background: #047857; color: #fff; }
.logo-appletv { background: #1f2937; color: #fff; }

.streaming-name {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--text-main);
  margin-bottom: 6px;
}

.streaming-status {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--matcha-jade);
  background: var(--success-bg);
  padding: 4px 10px;
  border-radius: var(--radius-full);
}

.streaming-regions {
  font-size: 0.82rem;
  color: var(--text-muted);
  margin-top: 10px;
}

/* ==========================================================================
   AI Productivity Cards (Zero Generic AI Robot Icons)
   Authentic Origami-Crease Aesthetic & Pure IP Badges
   ========================================================================== */
.ai-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.ai-card {
  background: var(--bg-card);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-lg);
  padding: 28px;
  transition: all var(--transition-normal);
  display: flex;
  flex-direction: column;
  box-shadow: var(--shadow-sm), var(--shadow-origami);
  position: relative;
}

.ai-card:hover {
  transform: translateY(-5px);
  border-color: var(--matcha-jade);
  box-shadow: var(--shadow-xl), 0 0 20px var(--primary-glow);
}

.ai-header {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-bottom: 16px;
}

.ai-logo {
  width: 48px;
  height: 48px;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 800;
  color: #fff;
  flex-shrink: 0;
  box-shadow: var(--shadow-sm);
}

.ai-openai { background: linear-gradient(135deg, #2e7d32 0%, #1b5e20 100%); }
.ai-claude { background: linear-gradient(135deg, #b45309 0%, #78350f 100%); }
.ai-midjourney { background: linear-gradient(135deg, #1e40af 0%, #172554 100%); }
.ai-gemini { background: linear-gradient(135deg, #0284c7 0%, #0369a1 100%); }
.ai-cursor { background: linear-gradient(135deg, #4338ca 0%, #312e81 100%); }
.ai-sora { background: linear-gradient(135deg, #be185d 0%, #831843 100%); }

.ai-info h3,
.ai-info h4 {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--text-main);
}

.ai-badge {
  font-size: 0.78rem;
  color: var(--bamboo-leaf);
  font-weight: 700;
}

.ai-card p {
  font-size: 0.9rem;
  color: var(--text-muted);
  line-height: 1.6;
  margin-bottom: 16px;
  flex-grow: 1;
}

.ai-tag-list {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.ai-tag {
  font-size: 0.75rem;
  background: var(--bg-surface-alt);
  color: var(--text-muted);
  padding: 4px 8px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-light);
}

/* ==========================================================================
   Pricing Section with KINETIC ORIGAMI FOLDING Micro-Interactions
   Prompt Requirement: "toggling between subscription durations (Monthly, Annual)
   initiates a seamless origami paper-folding transition, where panels physically
   fold and reassemble along crisp mathematical crease lines."
   ========================================================================== */
.pricing-toggle-wrapper {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 16px;
  margin-bottom: 45px;
}

.pricing-toggle-box {
  display: flex;
  align-items: center;
  background: var(--bg-surface-alt);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-full);
  padding: 4px;
  position: relative;
  box-shadow: inset 0 2px 4px var(--timber-shadow);
}

.toggle-option {
  padding: 8px 22px;
  border-radius: var(--radius-full);
  font-size: 0.95rem;
  font-weight: 700;
  cursor: pointer;
  color: var(--text-muted);
  transition: all var(--transition-normal);
  background: transparent;
  border: none;
}

.toggle-option.active {
  background: var(--bamboo-leaf);
  color: #ffffff;
  box-shadow: 0 2px 8px var(--primary-glow);
}

.discount-badge {
  display: inline-block;
  background: var(--matcha-jade);
  color: #fff;
  font-size: 0.75rem;
  font-weight: 800;
  padding: 2px 8px;
  border-radius: var(--radius-full);
  margin-left: 6px;
  animation: bounceSoft 2s infinite;
}

@keyframes bounceSoft {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-3px); }
}

/* 3D Perspective Container for Kinetic Origami Folding */
.pricing-perspective-container {
  perspective: 1200px;
}

.pricing-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
  align-items: stretch;
  transform-style: preserve-3d;
}

/* Kinetic Origami Folding Paper Panels */
.pricing-card {
  background: var(--bg-card);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-lg);
  padding: 42px 32px;
  position: relative;
  display: flex;
  flex-direction: column;
  box-shadow: var(--shadow-md), var(--shadow-origami);
  transition: transform var(--transition-normal), box-shadow var(--transition-normal), border-color var(--transition-normal);
  transform-origin: center top;
}

/* Kinetic paper-folding animation class applied via JS */
.pricing-card.folding-active {
  animation: origamiCreaseFold 0.55s cubic-bezier(0.34, 1.3, 0.64, 1) forwards;
}

@keyframes origamiCreaseFold {
  0% {
    transform: rotateX(0deg) scale(1);
    opacity: 1;
  }
  40% {
    transform: rotateX(-30deg) scale(0.96);
    opacity: 0.75;
    box-shadow: 0 25px 35px rgba(61, 109, 72, 0.25);
  }
  100% {
    transform: rotateX(0deg) scale(1);
    opacity: 1;
  }
}

.pricing-card:hover {
  transform: translateY(-6px);
  border-color: var(--matcha-jade);
  box-shadow: var(--shadow-xl), 0 0 25px var(--primary-glow);
}

.pricing-card.featured {
  border: 2px solid var(--bamboo-leaf);
  box-shadow: 0 8px 25px var(--primary-glow), var(--shadow-origami);
}

.featured-badge {
  position: absolute;
  top: -14px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--bamboo-leaf);
  color: #fff;
  font-size: 0.8rem;
  font-weight: 700;
  padding: 4px 18px;
  border-radius: var(--radius-full);
  box-shadow: 0 4px 12px var(--primary-glow);
  letter-spacing: 0.02em;
}

.pricing-plan-name {
  font-size: 1.4rem;
  font-weight: 800;
  color: var(--text-main);
  margin-bottom: 8px;
}

.pricing-plan-desc {
  font-size: 0.88rem;
  color: var(--text-muted);
  margin-bottom: 24px;
  min-height: 42px;
}

.pricing-price-box {
  display: flex;
  align-items: baseline;
  gap: 4px;
  margin-bottom: 28px;
  padding-bottom: 24px;
  border-bottom: 1px solid var(--border-light);
}

.price-currency {
  font-size: 1.4rem;
  font-weight: 700;
  color: var(--bamboo-leaf);
}

.price-amount {
  font-size: 3.2rem;
  font-weight: 900;
  line-height: 1;
  color: var(--bamboo-leaf);
  letter-spacing: -0.03em;
  transition: all var(--transition-fast);
}

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

.pricing-features-list {
  list-style: none;
  margin-bottom: 32px;
  flex-grow: 1;
}

.pricing-features-list li {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 0.92rem;
  color: var(--text-main);
  margin-bottom: 14px;
}

.pricing-features-list li svg {
  color: var(--matcha-jade);
  flex-shrink: 0;
}

.pricing-features-list li.disabled {
  color: var(--text-subtle);
  text-decoration: line-through;
}

.pricing-features-list li.disabled svg {
  color: var(--text-subtle);
}

/* ==========================================================================
   User Reviews / Testimonials
   ========================================================================== */
.reviews-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.review-card {
  background: var(--bg-card);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-lg);
  padding: 32px;
  display: flex;
  flex-direction: column;
  transition: all var(--transition-normal);
  box-shadow: var(--shadow-sm), var(--shadow-origami);
}

.review-card:hover {
  transform: translateY(-4px);
  border-color: var(--matcha-jade);
  box-shadow: var(--shadow-lg);
}

.review-stars {
  display: flex;
  gap: 4px;
  color: var(--bamboo-gold);
  margin-bottom: 16px;
}

.review-content {
  font-size: 0.95rem;
  color: var(--text-muted);
  line-height: 1.7;
  margin-bottom: 24px;
  flex-grow: 1;
}

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

.author-avatar {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: var(--card-gradient-badge);
  border: 1px solid var(--timber-edge);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  color: var(--bamboo-leaf);
  font-size: 1rem;
}

.author-name {
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--text-main);
}

.author-role {
  font-size: 0.8rem;
  color: var(--text-muted);
}

/* ==========================================================================
   FAQ Accordion Section
   ========================================================================== */
.faq-list {
  max-width: 860px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.faq-item {
  background: var(--bg-card);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
  box-shadow: var(--shadow-sm);
}

.faq-item:hover {
  border-color: var(--border-hover);
}

.faq-question {
  width: 100%;
  padding: 22px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  text-align: left;
  background: none;
  border: none;
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--text-main);
  cursor: pointer;
  gap: 16px;
}

.faq-question svg {
  transition: transform var(--transition-normal);
  color: var(--text-muted);
  flex-shrink: 0;
}

.faq-item.active .faq-question svg {
  transform: rotate(180deg);
  color: var(--bamboo-leaf);
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height var(--transition-normal), padding var(--transition-normal);
  padding: 0 24px;
  color: var(--text-muted);
  font-size: 0.95rem;
  line-height: 1.75;
}

.faq-item.active .faq-answer {
  max-height: 320px;
  padding: 0 24px 22px 24px;
}

/* Call to Action Banner */
.cta-banner {
  padding: 70px 0;
  text-align: center;
}

.cta-banner-box {
  background: var(--accent-gradient);
  border-radius: var(--radius-lg);
  padding: 60px 30px;
  color: #fff;
  box-shadow: 0 15px 35px var(--primary-glow), var(--shadow-origami);
  position: relative;
  overflow: hidden;
}

.cta-banner-box h2 {
  font-size: clamp(1.8rem, 3.5vw, 2.5rem);
  font-weight: 800;
  margin-bottom: 16px;
}

.cta-banner-box p {
  font-size: 1.1rem;
  opacity: 0.92;
  max-width: 620px;
  margin: 0 auto 30px;
}

.btn-cta-banner {
  background: #ffffff;
  color: var(--bamboo-leaf) !important;
  font-size: 1.05rem;
  padding: 14px 38px;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
}

.btn-cta-banner:hover {
  background: #fdfcf9;
  transform: translateY(-2px);
  box-shadow: 0 8px 25px rgba(0, 0, 0, 0.25);
}

/* ==========================================================================
   Footer Section - STRICT 4 LINKS ONLY AS REQUIRED
   网站地图、关于我们、服务条款、隐私政策
   ========================================================================== */
.footer {
  background: var(--bg-surface);
  border-top: 1px solid var(--border-light);
  padding: 50px 0 35px;
  transition: background-color var(--transition-normal), border-color var(--transition-normal);
}

.footer-container {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  gap: 28px;
}

.footer-nav {
  display: flex;
  align-items: center;
  justify-content: center;
  flex-wrap: wrap;
  gap: 36px;
}

.footer-nav a {
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--text-main);
  position: relative;
  padding: 6px 4px;
  transition: color var(--transition-fast);
}

.footer-nav a:hover {
  color: var(--bamboo-leaf);
}

.footer-copyright {
  font-size: 0.88rem;
  color: var(--text-muted);
  border-top: 1px solid var(--border-light);
  padding-top: 24px;
  width: 100%;
  text-align: center;
}

/* ==========================================================================
   Subpages & Article Styles (Insights, About, Terms, Privacy, Sitemap)
   ========================================================================== */
.subpage-hero {
  padding: 65px 0 45px;
  text-align: center;
  border-bottom: 1px solid var(--border-light);
  background: var(--bg-surface);
}

.subpage-title {
  font-size: clamp(2rem, 4vw, 2.8rem);
  font-weight: 800;
  color: var(--text-main);
  margin-bottom: 12px;
}

.subpage-desc {
  font-size: 1.1rem;
  color: var(--text-muted);
  max-width: 680px;
  margin: 0 auto;
}

.content-wrapper {
  max-width: 880px;
  margin: 50px auto 80px;
  padding: 0 24px;
}

.content-block {
  background: var(--bg-card);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-lg);
  padding: 38px;
  margin-bottom: 30px;
  box-shadow: var(--shadow-sm), var(--shadow-origami);
}

.content-block h2 {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--text-main);
  margin-bottom: 16px;
  display: flex;
  align-items: center;
  gap: 10px;
}

.content-block h2::before {
  content: "";
  display: inline-block;
  width: 4px;
  height: 20px;
  background: var(--matcha-jade);
  border-radius: 2px;
}

.content-block p {
  color: var(--text-muted);
  line-height: 1.8;
  margin-bottom: 14px;
}

.content-block p:last-child {
  margin-bottom: 0;
}

.content-block ul {
  list-style: none;
  margin-top: 12px;
  margin-bottom: 16px;
}

.content-block ul li {
  position: relative;
  padding-left: 24px;
  color: var(--text-muted);
  line-height: 1.75;
  margin-bottom: 10px;
}

.content-block ul li::before {
  content: "❖";
  position: absolute;
  left: 6px;
  color: var(--matcha-jade);
  font-size: 0.8rem;
}

.badge-forbidden {
  display: inline-block;
  background: rgba(185, 66, 60, 0.12);
  color: var(--danger);
  font-weight: 700;
  font-size: 0.78rem;
  padding: 2px 8px;
  border-radius: var(--radius-sm);
  margin-right: 6px;
}

.badge-policy {
  display: inline-block;
  background: var(--success-bg);
  color: var(--matcha-jade);
  font-weight: 700;
  font-size: 0.78rem;
  padding: 2px 8px;
  border-radius: var(--radius-sm);
  margin-right: 6px;
}

.back-to-home {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 24px;
  color: var(--bamboo-leaf);
  font-weight: 700;
  font-size: 0.95rem;
}

.back-to-home:hover {
  text-decoration: underline;
}

/* Insights/Articles Grid Styles */
.insights-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 26px;
  margin-top: 30px;
}

.article-card {
  background: var(--bg-card);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-lg);
  padding: 30px;
  display: flex;
  flex-direction: column;
  transition: all var(--transition-normal);
  box-shadow: var(--shadow-sm), var(--shadow-origami);
}

.article-card:hover {
  transform: translateY(-5px);
  border-color: var(--matcha-jade);
  box-shadow: var(--shadow-lg), 0 0 20px var(--primary-glow);
}

.article-tag {
  display: inline-block;
  font-size: 0.78rem;
  font-weight: 700;
  color: var(--bamboo-leaf);
  background: var(--success-bg);
  padding: 3px 10px;
  border-radius: var(--radius-full);
  margin-bottom: 14px;
  width: fit-content;
}

.article-title {
  font-size: 1.25rem;
  font-weight: 800;
  color: var(--text-main);
  margin-bottom: 12px;
  line-height: 1.4;
}

.article-summary {
  font-size: 0.92rem;
  color: var(--text-muted);
  line-height: 1.65;
  margin-bottom: 20px;
  flex-grow: 1;
}

.article-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-top: 1px solid var(--border-light);
  padding-top: 14px;
  font-size: 0.82rem;
  color: var(--text-subtle);
}

/* Sitemap List Styles */
.sitemap-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}

.sitemap-card {
  background: var(--bg-card);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-md);
  padding: 24px;
  box-shadow: var(--shadow-sm);
}

.sitemap-card h3 {
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--text-main);
  margin-bottom: 14px;
}

.sitemap-card ul {
  list-style: none;
}

.sitemap-card ul li {
  margin-bottom: 10px;
}

.sitemap-card ul li a {
  color: var(--text-muted);
  font-size: 0.95rem;
  display: flex;
  align-items: center;
  gap: 8px;
  transition: color var(--transition-fast);
}

.sitemap-card ul li a:hover {
  color: var(--bamboo-leaf);
}

/* ==========================================================================
   Responsive Breakpoints (@media queries)
   ========================================================================== */
@media (max-width: 992px) {
  .features-grid {
    grid-template-columns: 1fr;
    max-width: 600px;
    margin: 0 auto;
  }

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

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

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

  .pricing-grid {
    grid-template-columns: 1fr;
    max-width: 480px;
    margin: 0 auto;
  }

  .reviews-grid {
    grid-template-columns: 1fr;
    max-width: 600px;
    margin: 0 auto;
  }

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

  .hero-stats {
    grid-template-columns: repeat(2, 1fr);
    gap: 16px;
  }

  .stat-item:nth-child(2)::after {
    display: none;
  }

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

@media (max-width: 768px) {
  .nav-links {
    position: fixed;
    top: 74px;
    left: 0;
    right: 0;
    background: var(--bg-surface);
    border-bottom: 1px solid var(--border-light);
    flex-direction: column;
    padding: 24px;
    gap: 16px;
    transform: translateY(-160%);
    transition: transform var(--transition-normal);
    box-shadow: var(--shadow-xl);
    z-index: 999;
  }

  .nav-links.active {
    transform: translateY(0);
  }

  .mobile-menu-btn {
    display: inline-flex;
  }

  .hero-section {
    padding: 50px 0 40px;
  }

  .hero-cta-group {
    flex-direction: column;
    width: 100%;
  }

  .hero-cta-group .btn {
    width: 100%;
    max-width: 340px;
  }

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

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

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

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

  .content-block {
    padding: 24px 18px;
  }
}

@media (max-width: 480px) {
  .streaming-grid {
    grid-template-columns: 1fr;
  }

  .hero-stats {
    grid-template-columns: 1fr;
  }

  .stat-item:not(:last-child)::after {
    display: none;
  }
}

/* ==========================================================================
   Deep SEO Article Reader & Publishing Styles
   ========================================================================== */
.article-container {
  max-width: 920px;
  margin: 40px auto 80px;
  padding: 0 24px;
}

.article-header {
  margin-bottom: 35px;
  padding-bottom: 25px;
  border-bottom: 1px solid var(--border-light);
}

.article-breadcrumb {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.88rem;
  color: var(--text-subtle);
  margin-bottom: 16px;
  flex-wrap: wrap;
}

.article-breadcrumb a {
  color: var(--bamboo-leaf);
  font-weight: 600;
}

.article-breadcrumb a:hover {
  text-decoration: underline;
}

.article-main-title {
  font-size: clamp(1.85rem, 3.8vw, 2.6rem);
  font-weight: 800;
  line-height: 1.3;
  color: var(--text-main);
  margin-bottom: 18px;
  letter-spacing: -0.015em;
}

.article-meta-bar {
  display: flex;
  align-items: center;
  gap: 18px;
  font-size: 0.85rem;
  color: var(--text-muted);
  flex-wrap: wrap;
}

.article-meta-item {
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

/* Table of Contents (TOC) - Japanese Timber Box */
.article-toc {
  background: var(--bg-surface-alt);
  border: 1px solid var(--border-light);
  border-left: 4px solid var(--bamboo-leaf);
  border-radius: var(--radius-md);
  padding: 24px 28px;
  margin: 30px 0 45px;
  box-shadow: var(--shadow-sm);
}

.toc-title {
  font-size: 1.15rem;
  font-weight: 800;
  color: var(--text-main);
  margin-bottom: 14px;
  display: flex;
  align-items: center;
  gap: 8px;
}

.toc-title::before {
  content: "❖";
  color: var(--matcha-jade);
}

.toc-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.toc-list li a {
  font-size: 0.95rem;
  color: var(--text-muted);
  display: inline-block;
  transition: color var(--transition-fast), transform var(--transition-fast);
}

.toc-list li a:hover {
  color: var(--bamboo-leaf);
  transform: translateX(4px);
  font-weight: 600;
}

.toc-list li.sub-toc {
  padding-left: 20px;
}

.toc-list li.sub-toc a {
  font-size: 0.9rem;
  color: var(--text-subtle);
}

/* Article Body Typography */
.article-body {
  font-size: 1.05rem;
  line-height: 1.85;
  color: var(--text-main);
}

.article-body h2 {
  font-size: 1.6rem;
  font-weight: 800;
  color: var(--text-main);
  margin: 45px 0 18px;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--border-light);
  display: flex;
  align-items: center;
  gap: 10px;
}

.article-body h2::before {
  content: "";
  display: inline-block;
  width: 5px;
  height: 22px;
  background: var(--bamboo-leaf);
  border-radius: 2px;
}

.article-body h3 {
  font-size: 1.28rem;
  font-weight: 700;
  color: var(--text-main);
  margin: 30px 0 14px;
}

.article-body p {
  margin-bottom: 20px;
  color: var(--text-muted);
}

.article-body strong {
  color: var(--text-main);
  font-weight: 700;
}

.article-body ul, .article-body ol {
  margin: 16px 0 24px 20px;
  color: var(--text-muted);
}

.article-body li {
  margin-bottom: 10px;
  line-height: 1.75;
}

/* Callout Box */
.zen-callout {
  background: var(--card-gradient-badge);
  border: 1px solid var(--timber-edge);
  border-left: 4px solid var(--matcha-jade);
  border-radius: var(--radius-md);
  padding: 20px 24px;
  margin: 28px 0;
  color: var(--text-main);
}

.zen-callout p:last-child {
  margin-bottom: 0;
}

/* Featured Internal Link Badge */
.featured-internal-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--bg-surface-alt);
  border: 1px solid var(--border-hover);
  padding: 6px 14px;
  border-radius: var(--radius-md);
  color: var(--bamboo-leaf);
  font-weight: 700;
  text-decoration: underline;
  margin: 12px 0;
  box-shadow: var(--shadow-sm);
}

.featured-internal-link:hover {
  background: var(--bg-card);
  color: var(--matcha-jade);
}

/* Data Comparison Tables */
.table-responsive {
  width: 100%;
  overflow-x: auto;
  margin: 28px 0;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-light);
  box-shadow: var(--shadow-sm);
}

.zen-table {
  width: 100%;
  border-collapse: collapse;
  text-align: left;
  background: var(--bg-card);
  font-size: 0.95rem;
}

.zen-table th {
  background: var(--bg-surface-alt);
  color: var(--text-main);
  font-weight: 700;
  padding: 14px 18px;
  border-bottom: 1px solid var(--border-light);
  white-space: nowrap;
}

.zen-table td {
  padding: 14px 18px;
  border-bottom: 1px solid var(--border-light);
  color: var(--text-muted);
}

.zen-table tr:last-child td {
  border-bottom: none;
}

.zen-table tr:hover td {
  background: var(--bg-surface);
}

/* Article FAQ Section */
.article-faq-section {
  margin-top: 55px;
  padding-top: 35px;
  border-top: 1px solid var(--border-light);
}

/* Related Reading Section */
.related-reading-section {
  margin-top: 60px;
  padding-top: 40px;
  border-top: 1px solid var(--border-light);
}

.related-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
  margin-top: 20px;
}

.related-card {
  background: var(--bg-card);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-md);
  padding: 22px;
  display: flex;
  flex-direction: column;
  transition: all var(--transition-normal);
  box-shadow: var(--shadow-sm);
}

.related-card:hover {
  transform: translateY(-4px);
  border-color: var(--matcha-jade);
  box-shadow: var(--shadow-md), 0 0 15px var(--primary-glow);
}

.related-card h4 {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--text-main);
  margin-bottom: 8px;
  line-height: 1.45;
}

.related-card p {
  font-size: 0.88rem;
  color: var(--text-muted);
  line-height: 1.6;
  flex-grow: 1;
  margin-bottom: 12px;
}

.related-card .read-more {
  font-size: 0.84rem;
  font-weight: 700;
  color: var(--bamboo-leaf);
  display: inline-flex;
  align-items: center;
  gap: 4px;
}

/* Article Bottom CTA Card */
.article-cta-box {
  background: var(--accent-gradient);
  border-radius: var(--radius-lg);
  padding: 40px 32px;
  color: #fff;
  text-align: center;
  margin: 50px 0;
  box-shadow: 0 10px 25px var(--primary-glow);
}

.article-cta-box h3 {
  font-size: 1.5rem;
  font-weight: 800;
  margin-bottom: 10px;
}

.article-cta-box p {
  font-size: 1rem;
  opacity: 0.92;
  margin-bottom: 22px;
  color: #fff;
}

@media (max-width: 768px) {
  .related-grid {
    grid-template-columns: 1fr;
  }

  .article-container {
    padding: 0 18px;
  }
}