/* ============================================
   Ghost Lore: Tales of Ancient China
   "纸墨幽光" Design System
   ============================================ */

/* --- CSS Custom Properties --- */
:root {
  /* Primary Colors */
  --ink-cyan: #2C3E50;
  --paper-white: #F5F1E8;
  --candle-yellow: #D4A574;
  --indigo: #5B8A72;
  --cinnabar: #C73E3A;

  /* Derived Colors */
  --ink-light: rgba(44, 62, 80, 0.85);
  --ink-faint: rgba(44, 62, 80, 0.15);
  --ink-border: rgba(44, 62, 80, 0.12);
  --paper-warm: #EDE8DC;
  --paper-deep: #E5DFD2;
  --candle-glow: rgba(212, 165, 116, 0.15);
  --cinnabar-light: rgba(199, 62, 58, 0.1);
  --shadow-soft: rgba(44, 62, 80, 0.08);
  --shadow-medium: rgba(44, 62, 80, 0.15);

  /* Typography */
  --font-serif-cn: 'Noto Serif SC', 'Source Han Serif SC', 'SimSun', serif;
  --font-serif-en: 'Crimson Text', 'Georgia', serif;
  --font-display-en: 'Cinzel', 'Georgia', serif;
  --font-sans-cn: 'Noto Sans SC', 'Source Han Sans SC', 'Microsoft YaHei', sans-serif;
  --font-sans-en: 'Inter', 'Helvetica Neue', sans-serif;
  --font-kai: 'KaiTi', 'STKaiti', serif;

  /* Spacing */
  --space-xs: 0.25rem;
  --space-sm: 0.5rem;
  --space-md: 1rem;
  --space-lg: 1.5rem;
  --space-xl: 2rem;
  --space-2xl: 3rem;
  --space-3xl: 4rem;

  /* Layout */
  --max-width: 1280px;
  --sidebar-width: 240px;
  --border-radius: 2px;

  /* Transitions */
  --transition-fast: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-normal: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 0.5s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-elastic: 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);
}

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

html {
  font-size: 16px;
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-serif-cn);
  color: var(--ink-cyan);
  background-color: var(--paper-white);
  line-height: 1.8;
  letter-spacing: 0.02em;
  overflow-x: hidden;
}

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

a:hover {
  color: var(--candle-yellow);
}

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

/* --- Utility --- */
.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--space-xl);
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
}

/* --- Decorative Elements --- */
.ink-divider {
  width: 60px;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--ink-cyan), transparent);
  margin: var(--space-lg) auto;
  opacity: 0.3;
}

.candle-divider {
  width: 40px;
  height: 2px;
  background: var(--candle-yellow);
  margin: var(--space-md) 0;
}

/* 回纹边框装饰 */
.hui-border {
  border: 1px solid var(--ink-border);
  position: relative;
}
.hui-border::before {
  content: '';
  position: absolute;
  top: 3px; left: 3px; right: 3px; bottom: 3px;
  border: 1px solid var(--ink-border);
  pointer-events: none;
}

/* --- Navigation --- */
.site-nav {
  background-color: var(--ink-cyan);
  color: var(--paper-white);
  position: sticky;
  top: 0;
  z-index: 100;
  /* 毛边效果 */
  box-shadow: 0 2px 0 0 var(--ink-cyan);
}

.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--space-xl);
}

.nav-brand {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  color: var(--paper-white);
  font-family: var(--font-serif-cn);
  font-size: 1.25rem;
  font-weight: 600;
  letter-spacing: 0.08em;
}

.nav-brand .seal {
  width: 36px;
  height: 36px;
  border: 2px solid var(--cinnabar);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.75rem;
  color: var(--cinnabar);
  font-weight: 700;
  transform: rotate(-3deg);
}

.nav-links {
  display: flex;
  list-style: none;
  gap: var(--space-xl);
  align-items: center;
}

.nav-links a {
  color: var(--paper-white);
  font-family: var(--font-sans-cn);
  font-size: 0.9rem;
  letter-spacing: 0.05em;
  opacity: 0.85;
  transition: opacity var(--transition-fast);
  position: relative;
}

.nav-links a::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--candle-yellow);
  transition: width var(--transition-normal);
}

.nav-links a:hover {
  color: var(--paper-white);
  opacity: 1;
}

.nav-links a:hover::after {
  width: 100%;
}

.nav-lang-toggle {
  display: flex;
  background: rgba(255,255,255,0.1);
  border-radius: 2px;
  overflow: hidden;
}

.nav-lang-toggle button {
  background: none;
  border: none;
  color: var(--paper-white);
  padding: 6px 12px;
  font-size: 0.8rem;
  cursor: pointer;
  font-family: var(--font-sans-en);
  opacity: 0.7;
  transition: all var(--transition-fast);
}

.nav-lang-toggle button.active {
  background: var(--candle-yellow);
  color: var(--ink-cyan);
  opacity: 1;
}

/* Mobile hamburger */
.nav-hamburger {
  display: none;
  background: none;
  border: none;
  color: var(--paper-white);
  font-size: 1.5rem;
  cursor: pointer;
  padding: 8px;
}

/* --- Hero Section --- */
.hero {
  position: relative;
  min-height: 85vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  overflow: hidden;
  background: var(--ink-cyan);
}

.hero-bg {
  position: absolute;
  inset: 0;
  z-index: 1;
}

/* Ink wash animation via CSS */
.hero-bg::before {
  content: '';
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 80% 60% at 30% 40%, rgba(91,138,114,0.15), transparent),
    radial-gradient(ellipse 60% 80% at 70% 60%, rgba(212,165,116,0.08), transparent),
    radial-gradient(ellipse 100% 100% at 50% 50%, rgba(44,62,80,0.9), transparent);
  animation: inkFlow 12s ease-in-out infinite alternate;
}

@keyframes inkFlow {
  0% {
    background:
      radial-gradient(ellipse 80% 60% at 30% 40%, rgba(91,138,114,0.15), transparent),
      radial-gradient(ellipse 60% 80% at 70% 60%, rgba(212,165,116,0.08), transparent),
      radial-gradient(ellipse 100% 100% at 50% 50%, rgba(44,62,80,0.95), var(--ink-cyan));
  }
  100% {
    background:
      radial-gradient(ellipse 70% 70% at 60% 50%, rgba(91,138,114,0.12), transparent),
      radial-gradient(ellipse 80% 60% at 30% 70%, rgba(212,165,116,0.1), transparent),
      radial-gradient(ellipse 100% 100% at 50% 50%, rgba(44,62,80,0.95), var(--ink-cyan));
  }
}

/* Floating ink particles */
.hero-particles {
  position: absolute;
  inset: 0;
  z-index: 2;
  overflow: hidden;
}

.particle {
  position: absolute;
  width: 3px;
  height: 3px;
  background: rgba(245,241,232,0.15);
  border-radius: 50%;
  animation: float linear infinite;
}

.particle:nth-child(1) { left: 10%; animation-duration: 18s; animation-delay: 0s; }
.particle:nth-child(2) { left: 25%; animation-duration: 22s; animation-delay: 3s; }
.particle:nth-child(3) { left: 40%; animation-duration: 16s; animation-delay: 1s; }
.particle:nth-child(4) { left: 55%; animation-duration: 20s; animation-delay: 5s; }
.particle:nth-child(5) { left: 70%; animation-duration: 24s; animation-delay: 2s; }
.particle:nth-child(6) { left: 85%; animation-duration: 19s; animation-delay: 4s; }

@keyframes float {
  0% { transform: translateY(100vh) scale(0); opacity: 0; }
  10% { opacity: 1; }
  90% { opacity: 1; }
  100% { transform: translateY(-10vh) scale(1); opacity: 0; }
}

.hero-content {
  position: relative;
  z-index: 3;
  padding: var(--space-3xl) var(--space-xl);
}

.hero-title-cn {
  font-family: var(--font-serif-cn);
  font-size: clamp(2.5rem, 6vw, 4.5rem);
  font-weight: 700;
  color: var(--paper-white);
  letter-spacing: 0.15em;
  margin-bottom: var(--space-sm);
  /* 金箔质感 */
  background: linear-gradient(135deg, #F5F1E8 0%, #D4A574 40%, #F5F1E8 60%, #D4A574 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-title-en {
  font-family: var(--font-display-en);
  font-size: clamp(1rem, 2.5vw, 1.5rem);
  color: var(--candle-yellow);
  letter-spacing: 0.2em;
  text-transform: uppercase;
  margin-bottom: var(--space-xl);
  opacity: 0.9;
}

.hero-subtitle {
  font-family: var(--font-serif-cn);
  font-size: 1.1rem;
  color: rgba(245,241,232,0.7);
  max-width: 600px;
  margin: 0 auto var(--space-2xl);
  line-height: 1.8;
}

.hero-subtitle-en {
  font-family: var(--font-serif-en);
  font-size: 0.95rem;
  font-style: italic;
  color: rgba(245,241,232,0.5);
  max-width: 500px;
  margin: 0 auto;
}

.hero-scroll {
  position: absolute;
  bottom: 40px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 3;
  color: var(--candle-yellow);
  font-size: 0.75rem;
  font-family: var(--font-sans-en);
  letter-spacing: 0.15em;
  text-transform: uppercase;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-sm);
  opacity: 0.7;
  animation: scrollPulse 2s ease-in-out infinite;
}

.hero-scroll .arrow {
  width: 1px;
  height: 30px;
  background: linear-gradient(to bottom, var(--candle-yellow), transparent);
}

@keyframes scrollPulse {
  0%, 100% { opacity: 0.4; transform: translateX(-50%) translateY(0); }
  50% { opacity: 0.8; transform: translateX(-50%) translateY(5px); }
}

/* --- Section Headings --- */
.section-heading {
  text-align: center;
  margin-bottom: var(--space-3xl);
}

.section-heading .cn {
  font-family: var(--font-serif-cn);
  font-size: 2rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  color: var(--ink-cyan);
  margin-bottom: var(--space-xs);
}

.section-heading .en {
  font-family: var(--font-display-en);
  font-size: 0.9rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--candle-yellow);
}

/* --- Reading Path / Timeline --- */
.reading-path {
  padding: var(--space-3xl) 0;
  background: var(--paper-warm);
}

.path-steps {
  display: flex;
  justify-content: center;
  gap: var(--space-xl);
  flex-wrap: wrap;
  max-width: 1000px;
  margin: 0 auto;
}

.path-step {
  flex: 1;
  min-width: 200px;
  max-width: 240px;
  text-align: center;
  position: relative;
  padding: var(--space-xl);
  background: var(--paper-white);
  border: 1px solid var(--ink-border);
  transition: transform var(--transition-normal), box-shadow var(--transition-normal);
}

.path-step:hover {
  transform: translateY(-4px);
  box-shadow: 0 8px 24px var(--shadow-soft);
}

.path-step .step-number {
  font-family: var(--font-display-en);
  font-size: 2.5rem;
  color: var(--candle-yellow);
  opacity: 0.5;
  line-height: 1;
  margin-bottom: var(--space-sm);
}

.path-step .step-title {
  font-family: var(--font-serif-cn);
  font-size: 1.1rem;
  font-weight: 600;
  margin-bottom: var(--space-xs);
}

.path-step .step-title-en {
  font-family: var(--font-serif-en);
  font-size: 0.85rem;
  color: var(--ink-light);
  font-style: italic;
  margin-bottom: var(--space-sm);
}

.path-step .step-desc {
  font-size: 0.85rem;
  color: var(--ink-light);
  line-height: 1.6;
}

/* --- Story Cards Grid --- */
.stories-grid {
  padding: var(--space-3xl) 0;
}

.story-cards {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: var(--space-xl);
}

.story-card {
  background: var(--paper-white);
  border: 1px solid var(--ink-border);
  overflow: hidden;
  transition: transform var(--transition-normal), box-shadow var(--transition-normal);
  position: relative;
  cursor: pointer;
}

.story-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 12px 32px var(--shadow-medium);
}

.story-card:hover .card-image {
  transform: scale(1.05);
}

.story-card:hover .card-candle-line {
  width: 100%;
}

.card-image-wrapper {
  position: relative;
  height: 220px;
  overflow: hidden;
  background: var(--ink-cyan);
}

.card-image {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-slow);
  opacity: 0.85;
}

/* SVG placeholder for illustrations */
.card-illustration {
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, var(--ink-cyan) 0%, #34495e 100%);
}

.card-illustration svg {
  width: 60%;
  height: 60%;
  opacity: 0.3;
}

.card-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(44,62,80,0.8) 0%, transparent 60%);
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding: var(--space-lg);
}

.card-tag {
  display: inline-block;
  padding: 3px 10px;
  font-size: 0.7rem;
  font-family: var(--font-sans-en);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--paper-white);
  border: 1px solid rgba(245,241,232,0.3);
  margin-bottom: var(--space-sm);
  width: fit-content;
}

.card-tag.romance { border-color: var(--cinnabar); color: var(--cinnabar); background: var(--cinnabar-light); }
.card-tag.horror { border-color: var(--ink-cyan); }
.card-tag.fantasy { border-color: var(--candle-yellow); color: var(--candle-yellow); }
.card-tag.satire { border-color: var(--indigo); color: var(--indigo); }

.card-body {
  padding: var(--space-lg);
}

.card-title-cn {
  font-family: var(--font-serif-cn);
  font-size: 1.3rem;
  font-weight: 600;
  margin-bottom: 2px;
}

.card-title-en {
  font-family: var(--font-display-en);
  font-size: 0.85rem;
  color: var(--candle-yellow);
  letter-spacing: 0.05em;
  margin-bottom: var(--space-sm);
}

.card-source {
  font-size: 0.8rem;
  color: var(--ink-light);
  font-family: var(--font-sans-cn);
  margin-bottom: var(--space-sm);
}

.card-excerpt {
  font-size: 0.9rem;
  color: var(--ink-light);
  line-height: 1.7;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.card-candle-line {
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--candle-yellow);
  transition: width var(--transition-normal);
}

/* --- Theme Categories --- */
.themes-section {
  padding: var(--space-3xl) 0;
  background: var(--paper-warm);
}

.themes-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
  gap: var(--space-lg);
  max-width: 900px;
  margin: 0 auto;
}

.theme-card {
  background: var(--paper-white);
  border: 1px solid var(--ink-border);
  padding: var(--space-xl) var(--space-lg);
  text-align: center;
  transition: all var(--transition-normal);
  cursor: pointer;
}

.theme-card:hover {
  border-color: var(--candle-yellow);
  box-shadow: 0 4px 16px var(--shadow-soft);
}

.theme-icon {
  font-size: 2rem;
  margin-bottom: var(--space-sm);
  display: block;
}

.theme-name-cn {
  font-family: var(--font-serif-cn);
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: 2px;
}

.theme-name-en {
  font-family: var(--font-serif-en);
  font-size: 0.8rem;
  color: var(--ink-light);
  font-style: italic;
}

.theme-count {
  font-size: 0.75rem;
  color: var(--candle-yellow);
  margin-top: var(--space-sm);
  font-family: var(--font-sans-en);
}

/* --- Featured / Spotlight --- */
.spotlight {
  padding: var(--space-3xl) 0;
}

.spotlight-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-3xl);
  align-items: center;
  max-width: 1000px;
  margin: 0 auto;
}

.spotlight-image {
  position: relative;
  aspect-ratio: 3/4;
  background: linear-gradient(135deg, var(--ink-cyan), #34495e);
  border: 1px solid var(--ink-border);
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

.spotlight-image .placeholder-art {
  font-size: 8rem;
  opacity: 0.15;
  color: var(--paper-white);
}

.spotlight-text .label {
  font-family: var(--font-sans-en);
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  color: var(--candle-yellow);
  margin-bottom: var(--space-sm);
}

.spotlight-text .title-cn {
  font-family: var(--font-serif-cn);
  font-size: 2rem;
  font-weight: 700;
  margin-bottom: var(--space-xs);
}

.spotlight-text .title-en {
  font-family: var(--font-display-en);
  font-size: 1.1rem;
  color: var(--candle-yellow);
  margin-bottom: var(--space-lg);
}

.spotlight-text .desc {
  font-size: 0.95rem;
  color: var(--ink-light);
  line-height: 1.8;
  margin-bottom: var(--space-xl);
}

.btn-read {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  padding: 12px 28px;
  background: var(--ink-cyan);
  color: var(--paper-white);
  font-family: var(--font-sans-cn);
  font-size: 0.9rem;
  letter-spacing: 0.05em;
  border: none;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.btn-read:hover {
  background: var(--candle-yellow);
  color: var(--ink-cyan);
}

.btn-read .arrow {
  transition: transform var(--transition-fast);
}

.btn-read:hover .arrow {
  transform: translateX(4px);
}

/* --- Character Archives Preview --- */
.characters-section {
  padding: var(--space-3xl) 0;
  background: var(--paper-warm);
}

.character-list {
  display: flex;
  gap: var(--space-lg);
  overflow-x: auto;
  padding-bottom: var(--space-md);
  scrollbar-width: thin;
  scrollbar-color: var(--candle-yellow) transparent;
}

.character-item {
  flex: 0 0 160px;
  text-align: center;
  cursor: pointer;
  transition: transform var(--transition-fast);
}

.character-item:hover {
  transform: translateY(-4px);
}

.character-avatar {
  width: 120px;
  height: 120px;
  border-radius: 50%;
  margin: 0 auto var(--space-sm);
  background: var(--ink-cyan);
  border: 2px solid var(--ink-border);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2.5rem;
  color: rgba(245,241,232,0.3);
  transition: border-color var(--transition-fast);
}

.character-item:hover .character-avatar {
  border-color: var(--candle-yellow);
}

.character-name-cn {
  font-family: var(--font-serif-cn);
  font-size: 1rem;
  font-weight: 600;
}

.character-name-en {
  font-family: var(--font-serif-en);
  font-size: 0.8rem;
  color: var(--ink-light);
}

/* --- Footer --- */
.site-footer {
  background: var(--ink-cyan);
  color: var(--paper-white);
  padding: var(--space-3xl) 0 var(--space-xl);
}

.footer-inner {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: var(--space-2xl);
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--space-xl);
}

.footer-brand {
  font-family: var(--font-serif-cn);
}

.footer-brand .name {
  font-size: 1.3rem;
  font-weight: 600;
  margin-bottom: var(--space-sm);
}

.footer-brand .desc {
  font-size: 0.85rem;
  opacity: 0.6;
  line-height: 1.7;
}

.footer-col h4 {
  font-family: var(--font-sans-cn);
  font-size: 0.85rem;
  font-weight: 600;
  letter-spacing: 0.05em;
  margin-bottom: var(--space-md);
  color: var(--candle-yellow);
}

.footer-col ul {
  list-style: none;
}

.footer-col li {
  margin-bottom: var(--space-sm);
}

.footer-col a {
  color: var(--paper-white);
  opacity: 0.6;
  font-size: 0.85rem;
  transition: opacity var(--transition-fast);
}

.footer-col a:hover {
  opacity: 1;
  color: var(--candle-yellow);
}

.footer-bottom {
  max-width: var(--max-width);
  margin: var(--space-2xl) auto 0;
  padding: var(--space-lg) var(--space-xl) 0;
  border-top: 1px solid rgba(245,241,232,0.1);
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.8rem;
  opacity: 0.5;
}

/* ============================================
   STORY PAGE STYLES
   ============================================ */

/* --- Story Header --- */
.story-header {
  padding: var(--space-3xl) 0 var(--space-xl);
  text-align: center;
  border-bottom: 1px solid var(--ink-border);
}

.breadcrumb {
  font-family: var(--font-sans-cn);
  font-size: 0.8rem;
  color: var(--ink-light);
  margin-bottom: var(--space-xl);
}

.breadcrumb a {
  color: var(--ink-light);
}

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

.breadcrumb .sep {
  margin: 0 var(--space-sm);
  opacity: 0.4;
}

.story-title-cn {
  font-family: var(--font-serif-cn);
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 700;
  letter-spacing: 0.08em;
  margin-bottom: var(--space-xs);
}

.story-title-en {
  font-family: var(--font-display-en);
  font-size: clamp(1rem, 2vw, 1.4rem);
  color: var(--candle-yellow);
  letter-spacing: 0.1em;
  margin-bottom: var(--space-lg);
}

.story-subtitle {
  font-family: var(--font-serif-cn);
  font-size: 1.1rem;
  color: var(--ink-light);
  margin-bottom: var(--space-xs);
}

.story-subtitle-en {
  font-family: var(--font-serif-en);
  font-size: 0.95rem;
  font-style: italic;
  color: rgba(44,62,80,0.5);
  margin-bottom: var(--space-lg);
}

.story-tags {
  display: flex;
  justify-content: center;
  gap: var(--space-sm);
  flex-wrap: wrap;
}

.story-tags .tag {
  padding: 4px 12px;
  font-size: 0.75rem;
  font-family: var(--font-sans-cn);
  border: 1px solid var(--ink-border);
  color: var(--ink-light);
}

/* --- Reading Controls --- */
.reading-controls {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: var(--space-xl);
  padding: var(--space-md) 0;
  background: var(--paper-white);
  border-bottom: 1px solid var(--ink-border);
  position: sticky;
  top: 64px;
  z-index: 50;
  box-shadow: 0 2px 8px var(--shadow-soft);
}

.control-group {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
}

.control-label {
  font-size: 0.75rem;
  color: var(--ink-light);
  font-family: var(--font-sans-cn);
}

.control-btn {
  padding: 6px 14px;
  background: none;
  border: 1px solid var(--ink-border);
  color: var(--ink-light);
  font-size: 0.8rem;
  cursor: pointer;
  font-family: var(--font-sans-cn);
  transition: all var(--transition-fast);
}

.control-btn:hover, .control-btn.active {
  border-color: var(--candle-yellow);
  color: var(--candle-yellow);
  background: var(--candle-glow);
}

/* --- Story Layout --- */
.story-layout {
  display: grid;
  grid-template-columns: 200px 1fr 260px;
  gap: var(--space-2xl);
  max-width: var(--max-width);
  margin: 0 auto;
  padding: var(--space-2xl) var(--space-xl);
  min-height: 80vh;
}

/* Left sidebar - TOC */
.story-toc {
  position: sticky;
  top: 120px;
  align-self: start;
}

.toc-title {
  font-family: var(--font-sans-cn);
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--ink-light);
  margin-bottom: var(--space-md);
}

.toc-list {
  list-style: none;
  border-left: 1px solid var(--ink-border);
}

.toc-list li {
  margin-bottom: var(--space-xs);
}

.toc-list a {
  display: block;
  padding: 4px 12px;
  font-size: 0.85rem;
  color: var(--ink-light);
  border-left: 2px solid transparent;
  transition: all var(--transition-fast);
}

.toc-list a:hover, .toc-list a.active {
  color: var(--ink-cyan);
  border-left-color: var(--candle-yellow);
  background: var(--candle-glow);
}

/* Center content */
.story-content {
  max-width: 720px;
}

/* Bilingual text blocks */
.bilingual-block {
  margin-bottom: var(--space-2xl);
}

.bilingual-block .section-label {
  font-family: var(--font-sans-cn);
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  color: var(--candle-yellow);
  margin-bottom: var(--space-md);
  padding-bottom: var(--space-sm);
  border-bottom: 1px solid var(--ink-border);
}

.text-columns {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-xl);
}

.text-col {
  position: relative;
}

.text-col .lang-label {
  font-family: var(--font-sans-en);
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--indigo);
  margin-bottom: var(--space-md);
  display: flex;
  align-items: center;
  gap: var(--space-sm);
}

.text-col .lang-label::after {
  content: '';
  flex: 1;
  height: 1px;
  background: var(--ink-border);
}

.text-col-cn {
  font-family: var(--font-serif-cn);
  font-size: 1.05rem;
  line-height: 2;
  color: var(--ink-cyan);
}

.text-col-en {
  font-family: var(--font-serif-en);
  font-size: 1rem;
  line-height: 1.7;
  color: var(--ink-light);
}

/* Term highlighting */
.term {
  color: var(--cinnabar);
  cursor: pointer;
  position: relative;
  border-bottom: 1px dotted var(--cinnabar);
  -webkit-user-select: none;
  user-select: none;
}

.term-popup {
  display: none;
  position: fixed;
  background: var(--paper-white);
  border: 1px solid var(--ink-border);
  padding: var(--space-md) var(--space-lg);
  width: 280px;
  max-width: 90vw;
  box-shadow: 0 8px 32px rgba(44, 62, 80, 0.25);
  z-index: 999;
  font-size: 0.85rem;
  line-height: 1.7;
  color: var(--ink-cyan);
  pointer-events: none;
  opacity: 0;
  transition: opacity 0.15s ease;
}

.term-popup.active {
  display: block;
  opacity: 1;
  pointer-events: auto;
}

.term-popup .term-title {
  font-weight: 600;
  color: var(--cinnabar);
  margin-bottom: var(--space-xs);
  display: block;
}

.term-popup .term-pinyin {
  font-family: var(--font-sans-en);
  font-size: 0.75rem;
  color: var(--indigo);
  margin-bottom: var(--space-sm);
  display: block;
}

/* Annotation blocks */
.annotation {
  margin: var(--space-xl) 0;
  padding: var(--space-md) var(--space-lg);
  background: var(--paper-deep);
  border-left: 3px solid var(--indigo);
  font-size: 0.9rem;
  line-height: 1.7;
}

.annotation .marker {
  font-family: var(--font-sans-en);
  color: var(--indigo);
  font-weight: 600;
  margin-right: var(--space-sm);
}

/* Right sidebar */
.story-sidebar {
  position: sticky;
  top: 120px;
  align-self: start;
}

.sidebar-section {
  margin-bottom: var(--space-2xl);
}

.sidebar-title {
  font-family: var(--font-sans-cn);
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--candle-yellow);
  margin-bottom: var(--space-md);
  padding-bottom: var(--space-sm);
  border-bottom: 1px solid var(--ink-border);
}

.sidebar-list {
  list-style: none;
}

.sidebar-list li {
  padding: var(--space-sm) 0;
  border-bottom: 1px solid var(--ink-border);
}

.sidebar-list a {
  font-size: 0.9rem;
  color: var(--ink-light);
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: var(--space-sm);
}

.sidebar-list a:hover {
  color: var(--ink-cyan);
}

.sidebar-list .title-cn {
  font-family: var(--font-serif-cn);
}

.sidebar-list .title-en {
  font-family: var(--font-serif-en);
  font-size: 0.78rem;
  color: rgba(44,62,80,0.4);
  font-style: italic;
  flex-shrink: 0;
}

.sidebar-list .source-tag {
  font-size: 0.7rem;
  color: var(--indigo);
  font-family: var(--font-sans-en);
}

/* --- Language Toggle --- */
[data-lang="en"] { display: none; }
body.lang-en [data-lang="cn"] { display: none; }
body.lang-en [data-lang="en"] { display: initial; }
body.lang-en .text-col:first-child { display: none; }
body.lang-en .text-col:last-child { grid-column: 1; }
body.lang-en .story-title-cn { display: none; }
body.lang-en .story-subtitle { display: none; }
body.lang-en .story-title-en { font-size: clamp(2rem, 4vw, 3rem); }
body.lang-en .story-subtitle-en { font-size: 1.1rem; opacity: 0.85; }

/* --- Responsive --- */
@media (max-width: 1024px) {
  .story-layout {
    grid-template-columns: 1fr 240px;
  }
  .story-toc {
    display: none;
  }
}

@media (max-width: 768px) {
  .nav-links {
    display: none;
    position: absolute;
    top: 64px;
    left: 0;
    right: 0;
    background: var(--ink-cyan);
    flex-direction: column;
    padding: var(--space-lg);
    gap: var(--space-md);
    border-top: 1px solid rgba(245,241,232,0.1);
  }

  .nav-links.open {
    display: flex;
  }

  .nav-hamburger {
    display: block;
  }

  .hero {
    min-height: 70vh;
  }

  .story-layout {
    grid-template-columns: 1fr;
    padding: var(--space-lg);
  }

  .story-sidebar {
    position: static;
  }

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

  .spotlight-inner {
    grid-template-columns: 1fr;
  }

  .footer-inner {
    grid-template-columns: 1fr 1fr;
    gap: var(--space-xl);
  }

  .reading-controls {
    flex-wrap: wrap;
    gap: var(--space-sm);
    padding: var(--space-sm) var(--space-md);
  }

  .path-steps {
    flex-direction: column;
    align-items: center;
  }

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

@media (max-width: 480px) {
  :root {
    font-size: 14px;
  }

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

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

/* --- Scroll Animations (fade-in on scroll) --- */
.fade-in {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity var(--transition-slow), transform var(--transition-slow);
}

.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}