/* ============================================================
   长生不死的我，在南宋点歪了科技树 — 官方站点样式
   Design: "重工大宋 × 星海赛博" Dark Theme
   ============================================================ */

/* --- Google Fonts --- */
@import url('https://fonts.googleapis.com/css2?family=Noto+Serif+SC:wght@400;600;700;900&family=Inter:wght@300;400;500;600&display=swap');

/* --- Design Tokens --- */
:root {
  /* Colors */
  --bg-primary: #0a0b0f;
  --bg-secondary: #111318;
  --bg-card: rgba(20, 22, 30, 0.7);
  --bg-glass: rgba(20, 22, 30, 0.55);
  --border-glass: rgba(200, 170, 110, 0.12);
  --border-subtle: rgba(255, 255, 255, 0.06);

  --text-primary: #e8e2d6;
  --text-secondary: #9a9488;
  --text-muted: #5c584f;

  --accent-gold: #c8a86e;
  --accent-gold-light: #e0c98a;
  --accent-gold-dim: rgba(200, 168, 110, 0.15);
  --accent-amber: #d4a04a;
  --accent-copper: #b87333;
  --accent-red: #8b3a3a;
  --accent-cyan: #4a8b8b;

  --gradient-gold: linear-gradient(135deg, #c8a86e 0%, #d4a04a 50%, #b87333 100%);
  --gradient-dark: linear-gradient(180deg, #0a0b0f 0%, #111318 100%);
  --gradient-hero: linear-gradient(180deg, rgba(10,11,15,0) 0%, rgba(10,11,15,0.6) 50%, #0a0b0f 100%);

  /* Typography */
  --font-serif: 'Noto Serif SC', 'Songti SC', 'SimSun', serif;
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;

  /* Spacing */
  --nav-height: 64px;
  --content-max-width: 1200px;
  --reader-max-width: 720px;

  /* Transitions */
  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
  --transition-fast: 0.2s var(--ease-out);
  --transition-medium: 0.4s var(--ease-out);
  --transition-slow: 0.8s var(--ease-out);
}

/* --- 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);
  background-color: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.8;
  min-height: 100vh;
  overflow-x: hidden;
}

a {
  color: var(--accent-gold);
  text-decoration: none;
  transition: color var(--transition-fast);
}
a:hover {
  color: var(--accent-gold-light);
}

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

/* --- Scrollbar --- */
::-webkit-scrollbar {
  width: 6px;
}
::-webkit-scrollbar-track {
  background: var(--bg-primary);
}
::-webkit-scrollbar-thumb {
  background: rgba(200, 168, 110, 0.3);
  border-radius: 3px;
}
::-webkit-scrollbar-thumb:hover {
  background: rgba(200, 168, 110, 0.5);
}

/* --- Navigation --- */
.site-nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--nav-height);
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 2rem;
  background: rgba(10, 11, 15, 0.85);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border-subtle);
  transition: background var(--transition-medium);
}

.site-nav.scrolled {
  background: rgba(10, 11, 15, 0.95);
  border-bottom-color: var(--border-glass);
}

.nav-brand {
  font-family: var(--font-serif);
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--accent-gold);
  letter-spacing: 0.05em;
  white-space: nowrap;
}

.nav-links {
  display: flex;
  gap: 2rem;
  list-style: none;
}

.nav-links a {
  font-family: var(--font-sans);
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--text-secondary);
  letter-spacing: 0.04em;
  position: relative;
  padding: 0.25rem 0;
}

.nav-links a::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 0;
  height: 1px;
  background: var(--accent-gold);
  transition: width var(--transition-medium);
}

.nav-links a:hover,
.nav-links a.active {
  color: var(--accent-gold);
}

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

/* Mobile menu toggle */
.nav-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0.5rem;
}

.nav-toggle span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--text-primary);
  margin: 5px 0;
  transition: var(--transition-fast);
  border-radius: 1px;
}

/* --- Hero Section --- */
.hero {
  position: relative;
  width: 100%;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

.hero-bg {
  position: absolute;
  inset: 0;
  z-index: 0;
  background:
    radial-gradient(ellipse 80% 50% at 20% 40%, rgba(200, 168, 110, 0.06) 0%, transparent 70%),
    radial-gradient(ellipse 60% 40% at 75% 60%, rgba(184, 115, 51, 0.04) 0%, transparent 60%),
    radial-gradient(ellipse 120% 80% at 50% 20%, rgba(30, 35, 55, 0.8) 0%, transparent 50%),
    linear-gradient(180deg, #070810 0%, #0d0f18 30%, #0f1020 60%, #0a0b0f 100%);
}

.hero-bg img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center 30%;
  opacity: 0.5;
}

.hero-bg::after {
  content: '';
  position: absolute;
  inset: 0;
  background: var(--gradient-hero);
}

#particles-canvas {
  position: absolute;
  inset: 0;
  z-index: 1;
  pointer-events: none;
}

.hero-content {
  position: relative;
  z-index: 2;
  text-align: center;
  padding: 2rem;
  max-width: 800px;
}

.hero-subtitle-top {
  font-family: var(--font-sans);
  font-size: 0.8rem;
  font-weight: 500;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  color: var(--accent-gold);
  opacity: 0;
  transform: translateY(20px);
  animation: fadeInUp 1s var(--ease-out) 0.3s forwards;
  margin-bottom: 1.5rem;
}

.hero-title {
  font-family: var(--font-serif);
  font-size: clamp(2rem, 5vw, 3.5rem);
  font-weight: 900;
  line-height: 1.3;
  color: var(--text-primary);
  opacity: 0;
  transform: translateY(30px);
  animation: fadeInUp 1s var(--ease-out) 0.6s forwards;
  margin-bottom: 0.5rem;
}

.hero-title .highlight {
  background: var(--gradient-gold);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-tagline {
  font-family: var(--font-serif);
  font-size: 1rem;
  color: var(--text-secondary);
  line-height: 1.9;
  max-width: 600px;
  margin: 1.5rem auto 2.5rem;
  opacity: 0;
  transform: translateY(20px);
  animation: fadeInUp 1s var(--ease-out) 0.9s forwards;
}

.hero-cta {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  font-family: var(--font-sans);
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--bg-primary);
  background: var(--gradient-gold);
  padding: 0.85rem 2.2rem;
  border-radius: 50px;
  border: none;
  cursor: pointer;
  opacity: 0;
  transform: translateY(20px);
  animation: fadeInUp 1s var(--ease-out) 1.2s forwards;
  transition: transform var(--transition-fast), box-shadow var(--transition-fast);
  text-decoration: none;
}

.hero-cta:hover {
  transform: translateY(-2px) scale(1.03);
  box-shadow: 0 8px 30px rgba(200, 168, 110, 0.3);
  color: var(--bg-primary);
}

.hero-cta svg {
  width: 16px;
  height: 16px;
  transition: transform var(--transition-fast);
}

.hero-cta:hover svg {
  transform: translateX(3px);
}

.hero-scroll-hint {
  position: absolute;
  bottom: 2.5rem;
  left: 50%;
  transform: translateX(-50%);
  z-index: 2;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.5rem;
  opacity: 0;
  animation: fadeIn 1s var(--ease-out) 2s forwards;
}

.hero-scroll-hint span {
  font-family: var(--font-sans);
  font-size: 0.7rem;
  letter-spacing: 0.15em;
  color: var(--text-muted);
}

.scroll-line {
  width: 1px;
  height: 40px;
  background: linear-gradient(180deg, var(--accent-gold) 0%, transparent 100%);
  animation: scrollPulse 2s ease-in-out infinite;
}

/* --- Section Commons --- */
.section {
  padding: 6rem 2rem;
}

.section-header {
  text-align: center;
  margin-bottom: 4rem;
}

.section-label {
  font-family: var(--font-sans);
  font-size: 0.75rem;
  font-weight: 500;
  letter-spacing: 0.25em;
  text-transform: uppercase;
  color: var(--accent-gold);
  margin-bottom: 1rem;
}

.section-title {
  font-family: var(--font-serif);
  font-size: clamp(1.5rem, 3vw, 2.2rem);
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 1rem;
}

.section-desc {
  font-size: 0.95rem;
  color: var(--text-secondary);
  max-width: 600px;
  margin: 0 auto;
  line-height: 1.8;
}

/* --- Ornamental Divider --- */
.ornament-divider {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 1rem;
  margin: 3rem 0;
}

.ornament-divider::before,
.ornament-divider::after {
  content: '';
  width: 60px;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--accent-gold-dim), transparent);
}

.ornament-divider .diamond {
  width: 6px;
  height: 6px;
  background: var(--accent-gold);
  transform: rotate(45deg);
  opacity: 0.6;
}

/* --- Volume Cards --- */
.volumes-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 1.5rem;
  max-width: var(--content-max-width);
  margin: 0 auto;
}

.volume-card {
  background: var(--bg-card);
  border: 1px solid var(--border-glass);
  border-radius: 12px;
  padding: 2rem;
  position: relative;
  overflow: hidden;
  transition: transform var(--transition-medium), border-color var(--transition-medium);
}

.volume-card:hover {
  transform: translateY(-4px);
  border-color: rgba(200, 170, 110, 0.25);
}

.volume-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: var(--gradient-gold);
  opacity: 0;
  transition: opacity var(--transition-medium);
}

.volume-card:hover::before {
  opacity: 1;
}

.volume-number {
  font-family: var(--font-sans);
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.2em;
  color: var(--accent-gold);
  text-transform: uppercase;
  margin-bottom: 0.75rem;
}

.volume-card h3 {
  font-size: 1.15rem;
  font-weight: 700;
  margin-bottom: 0.75rem;
  color: var(--text-primary);
}

.volume-card p {
  font-size: 0.85rem;
  color: var(--text-secondary);
  line-height: 1.7;
}

.volume-status {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  font-family: var(--font-sans);
  font-size: 0.7rem;
  font-weight: 500;
  margin-top: 1.2rem;
  padding: 0.3rem 0.8rem;
  border-radius: 20px;
  letter-spacing: 0.05em;
}

.volume-status.writing {
  background: rgba(200, 168, 110, 0.12);
  color: var(--accent-gold);
}

.volume-status.upcoming {
  background: rgba(255, 255, 255, 0.04);
  color: var(--text-muted);
}

.volume-status .dot {
  width: 5px;
  height: 5px;
  border-radius: 50%;
}

.volume-status.writing .dot {
  background: var(--accent-gold);
  animation: pulse 2s ease-in-out infinite;
}

.volume-status.upcoming .dot {
  background: var(--text-muted);
}

/* --- Character Preview Cards --- */
.characters-preview {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 1.5rem;
  max-width: 800px;
  margin: 0 auto;
}

.char-preview-card {
  background: var(--bg-glass);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border: 1px solid var(--border-glass);
  border-radius: 12px;
  padding: 1.5rem;
  text-align: center;
  transition: transform var(--transition-medium), border-color var(--transition-medium);
}

.char-preview-card:hover {
  transform: translateY(-4px);
  border-color: rgba(200, 170, 110, 0.3);
}

.char-avatar {
  width: 80px;
  height: 80px;
  border-radius: 50%;
  object-fit: cover;
  object-position: top center;
  margin: 0 auto 1rem;
  border: 2px solid var(--accent-gold-dim);
}

.char-preview-card h4 {
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: 0.25rem;
}

.char-preview-card .char-role {
  font-family: var(--font-sans);
  font-size: 0.75rem;
  color: var(--accent-gold);
  letter-spacing: 0.05em;
}

/* --- Footer --- */
.site-footer {
  border-top: 1px solid var(--border-subtle);
  padding: 3rem 2rem;
  text-align: center;
}

.footer-brand {
  font-family: var(--font-serif);
  font-size: 1rem;
  font-weight: 700;
  color: var(--accent-gold);
  margin-bottom: 0.75rem;
}

.footer-links {
  display: flex;
  justify-content: center;
  gap: 1.5rem;
  list-style: none;
  margin-bottom: 1.5rem;
}

.footer-links a {
  font-family: var(--font-sans);
  font-size: 0.8rem;
  color: var(--text-muted);
}

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

.footer-copy {
  font-family: var(--font-sans);
  font-size: 0.75rem;
  color: var(--text-muted);
}

/* ============================================================
   CATALOG PAGE
   ============================================================ */
.page-header {
  padding-top: calc(var(--nav-height) + 4rem);
  padding-bottom: 3rem;
  text-align: center;
}

.page-header h1 {
  font-size: clamp(1.8rem, 4vw, 2.5rem);
  font-weight: 900;
  margin-bottom: 0.75rem;
}

.page-header p {
  font-size: 0.95rem;
  color: var(--text-secondary);
  max-width: 500px;
  margin: 0 auto;
}

/* Catalog Volume Sections */
.catalog-volume {
  max-width: 800px;
  margin: 0 auto 3rem;
  padding: 0 2rem;
}

.catalog-volume-header {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-bottom: 1.5rem;
  padding-bottom: 1rem;
  border-bottom: 1px solid var(--border-subtle);
}

.catalog-volume-number {
  font-family: var(--font-sans);
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.15em;
  color: var(--accent-gold);
  background: var(--accent-gold-dim);
  padding: 0.3rem 0.75rem;
  border-radius: 4px;
  white-space: nowrap;
}

.catalog-volume-header h2 {
  font-size: 1.3rem;
  font-weight: 700;
}

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

.chapter-item {
  border-bottom: 1px solid var(--border-subtle);
}

.chapter-item a,
.chapter-item .chapter-locked {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1rem 1.25rem;
  border-radius: 8px;
  transition: background var(--transition-fast);
}

.chapter-item a:hover {
  background: var(--accent-gold-dim);
}

.chapter-item .chapter-locked {
  cursor: default;
  opacity: 0.4;
}

.chapter-meta {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.chapter-num {
  font-family: var(--font-sans);
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--accent-gold);
  min-width: 2rem;
}

.chapter-title-text {
  font-size: 1rem;
  font-weight: 600;
}

.chapter-item .chapter-locked .chapter-title-text {
  color: var(--text-muted);
}

.chapter-status-badge {
  font-family: var(--font-sans);
  font-size: 0.65rem;
  font-weight: 500;
  letter-spacing: 0.05em;
  padding: 0.2rem 0.6rem;
  border-radius: 20px;
}

.chapter-status-badge.available {
  background: rgba(200, 168, 110, 0.15);
  color: var(--accent-gold);
}

.chapter-status-badge.locked {
  background: rgba(255, 255, 255, 0.04);
  color: var(--text-muted);
}

/* ============================================================
   READER PAGE
   ============================================================ */
.reader-progress {
  position: fixed;
  top: 0;
  left: 0;
  width: 0%;
  height: 3px;
  background: var(--gradient-gold);
  z-index: 1001;
  transition: width 0.1s linear;
}

.reader-container {
  max-width: var(--reader-max-width);
  margin: 0 auto;
  padding: calc(var(--nav-height) + 3rem) 2rem 4rem;
}

.reader-chapter-header {
  text-align: center;
  margin-bottom: 3rem;
  padding-bottom: 2rem;
  border-bottom: 1px solid var(--border-subtle);
}

.reader-chapter-header h1 {
  font-size: clamp(1.5rem, 4vw, 2.2rem);
  font-weight: 900;
  margin-bottom: 0.5rem;
}

.reader-chapter-header .chapter-meta-info {
  font-family: var(--font-sans);
  font-size: 0.8rem;
  color: var(--text-muted);
}

/* Reader Content Styling */
.reader-content {
  font-size: 1.05rem;
  line-height: 2;
  color: var(--text-primary);
}

.reader-content h2 {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--accent-gold);
  text-align: center;
  margin: 3rem 0 2rem;
}

.reader-content p {
  margin-bottom: 1.2rem;
  text-indent: 2em;
}

.reader-content p:empty {
  display: none;
}

.reader-content .section-break {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 1rem;
  margin: 2.5rem 0;
  text-indent: 0;
}

.reader-content .section-break::before,
.reader-content .section-break::after {
  content: '';
  width: 40px;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--accent-gold-dim), transparent);
}

.reader-content .section-break .diamond {
  width: 5px;
  height: 5px;
  background: var(--accent-gold);
  transform: rotate(45deg);
  opacity: 0.4;
}

.reader-content strong {
  color: var(--accent-gold-light);
  font-weight: 700;
}

/* Reader Navigation */
.reader-nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-top: 4rem;
  padding-top: 2rem;
  border-top: 1px solid var(--border-subtle);
  gap: 1rem;
}

.reader-nav a,
.reader-nav span {
  font-family: var(--font-sans);
  font-size: 0.85rem;
  font-weight: 500;
  padding: 0.7rem 1.5rem;
  border-radius: 8px;
  border: 1px solid var(--border-glass);
  transition: all var(--transition-fast);
}

.reader-nav a:hover {
  background: var(--accent-gold-dim);
  border-color: var(--accent-gold);
  color: var(--accent-gold);
}

.reader-nav span.disabled {
  opacity: 0.3;
  cursor: default;
}

/* ============================================================
   CHARACTERS PAGE
   ============================================================ */
.characters-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 2rem;
  max-width: var(--content-max-width);
  margin: 0 auto;
  padding: 0 2rem;
}

.character-card {
  background: var(--bg-card);
  border: 1px solid var(--border-glass);
  border-radius: 16px;
  overflow: hidden;
  transition: transform var(--transition-medium), border-color var(--transition-medium), box-shadow var(--transition-medium);
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.4);
  position: relative;
}

.character-card::before {
  content: '';
  position: absolute;
  inset: 0;
  border: 1px solid transparent;
  border-radius: 16px;
  background: linear-gradient(135deg, rgba(200, 168, 110, 0.3) 0%, transparent 50%, rgba(200, 168, 110, 0.1) 100%) border-box;
  -webkit-mask: linear-gradient(#fff 0 0) padding-box, linear-gradient(#fff 0 0);
  -webkit-mask-composite: xor;
  mask: linear-gradient(#fff 0 0) padding-box, linear-gradient(#fff 0 0);
  mask-composite: exclude;
  pointer-events: none;
  z-index: 2;
  opacity: 0.5;
  transition: opacity var(--transition-medium);
}

.character-card:hover {
  transform: translateY(-8px) scale(1.02);
  border-color: rgba(200, 170, 110, 0.45);
  box-shadow: 0 12px 40px rgba(200, 168, 110, 0.15);
}

.character-card:hover::before {
  opacity: 1;
}

.character-card-image {
  width: 100%;
  height: 360px;
  overflow: hidden;
  position: relative;
}

.character-card-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: top center;
  transition: transform var(--transition-slow);
}

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

.character-card-image::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 120px;
  background: linear-gradient(transparent, var(--bg-card));
}

.character-card-body {
  padding: 1.5rem 2rem 2rem;
}

.character-card-body .char-name {
  font-size: 1.4rem;
  font-weight: 900;
  margin-bottom: 0.25rem;
}

.character-card-body .char-alias {
  font-family: var(--font-sans);
  font-size: 0.8rem;
  color: var(--accent-gold);
  letter-spacing: 0.05em;
  margin-bottom: 1rem;
}

.character-card-body .char-desc {
  font-size: 0.9rem;
  color: var(--text-secondary);
  line-height: 1.8;
}

/* Item card (次元手环) */
.item-card {
  max-width: 600px;
  margin: 3rem auto 0;
  background: var(--bg-card);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border: 1px solid var(--border-glass);
  border-radius: 16px;
  overflow: hidden;
  display: flex;
  align-items: center;
  gap: 2rem;
  padding: 2.5rem;
  transition: transform var(--transition-medium), border-color var(--transition-medium), box-shadow var(--transition-medium);
  box-shadow: 0 4px 30px rgba(0, 0, 0, 0.3);
}

.item-card:hover {
  transform: translateY(-6px);
  border-color: rgba(200, 170, 110, 0.4);
  box-shadow: 0 10px 40px rgba(200, 168, 110, 0.1);
}

.item-card-image {
  width: 140px;
  height: 140px;
  flex-shrink: 0;
  border-radius: 12px;
  overflow: hidden;
}

.item-card-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.item-card-body h3 {
  font-size: 1.2rem;
  font-weight: 700;
  margin-bottom: 0.25rem;
}

.item-card-body .item-type {
  font-family: var(--font-sans);
  font-size: 0.75rem;
  color: var(--accent-gold);
  letter-spacing: 0.05em;
  margin-bottom: 0.75rem;
}

.item-card-body p {
  font-size: 0.85rem;
  color: var(--text-secondary);
  line-height: 1.7;
}

/* ============================================================
   ABOUT PAGE
   ============================================================ */
.about-content {
  max-width: 750px;
  margin: 0 auto;
  padding: 0 2rem;
}

.about-content h2 {
  font-size: 1.4rem;
  font-weight: 700;
  margin-bottom: 1rem;
  color: var(--text-primary);
}

.about-content p {
  font-size: 0.95rem;
  color: var(--text-secondary);
  line-height: 1.9;
  margin-bottom: 1.2rem;
}

.about-content .iron-rules {
  background: var(--bg-card);
  border: 1px solid var(--border-glass);
  border-radius: 12px;
  padding: 2rem;
  margin: 2rem 0;
}

.about-content .iron-rules h3 {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--accent-gold);
  margin-bottom: 1rem;
}

.about-content .iron-rules ul {
  list-style: none;
  padding: 0;
}

.about-content .iron-rules li {
  font-size: 0.9rem;
  color: var(--text-secondary);
  line-height: 1.8;
  padding: 0.5rem 0;
  padding-left: 1.5rem;
  position: relative;
  border-bottom: 1px solid var(--border-subtle);
}

.about-content .iron-rules li:last-child {
  border-bottom: none;
}

.about-content .iron-rules li::before {
  content: '◆';
  position: absolute;
  left: 0;
  color: var(--accent-gold);
  font-size: 0.5rem;
  top: 0.85rem;
}

.about-author {
  display: flex;
  align-items: center;
  gap: 1.5rem;
  background: var(--bg-card);
  border: 1px solid var(--border-glass);
  border-radius: 12px;
  padding: 2rem;
  margin-top: 2rem;
}

.about-author-avatar {
  width: 80px;
  height: 80px;
  border-radius: 50%;
  background: var(--accent-gold-dim);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2rem;
  flex-shrink: 0;
}

.about-author-info h3 {
  font-size: 1.1rem;
  font-weight: 700;
  margin-bottom: 0.25rem;
}

.about-author-info p {
  font-size: 0.85rem;
  color: var(--text-secondary);
  margin-bottom: 0;
}

/* ============================================================
   ANIMATIONS
   ============================================================ */
@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(30px); }
  to { opacity: 1; transform: translateY(0); }
}

@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.3; }
}

@keyframes scrollPulse {
  0%, 100% { opacity: 0.3; transform: scaleY(0.6); transform-origin: top; }
  50% { opacity: 1; transform: scaleY(1); transform-origin: top; }
}

/* Scroll reveal */
.reveal {
  opacity: 0;
  transform: translateY(40px);
  transition: opacity 0.8s var(--ease-out), transform 0.8s var(--ease-out);
}

.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ============================================================
   RESPONSIVE
   ============================================================ */
@media (max-width: 768px) {
  .site-nav {
    padding: 0 1.25rem;
  }

  .nav-links {
    position: fixed;
    top: var(--nav-height);
    left: 0;
    right: 0;
    background: rgba(10, 11, 15, 0.97);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    flex-direction: column;
    gap: 0;
    padding: 1rem 0;
    border-bottom: 1px solid var(--border-glass);
    transform: translateY(-100%);
    opacity: 0;
    pointer-events: none;
    transition: transform var(--transition-medium), opacity var(--transition-medium);
  }

  .nav-links.open {
    transform: translateY(0);
    opacity: 1;
    pointer-events: all;
  }

  .nav-links a {
    display: block;
    padding: 0.9rem 2rem;
    font-size: 0.95rem;
  }

  .nav-toggle {
    display: block;
  }

  .hero-content {
    padding: 1.5rem;
  }

  .volumes-grid {
    grid-template-columns: 1fr;
    padding: 0;
  }

  .characters-preview {
    grid-template-columns: 1fr;
  }

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

  .item-card {
    flex-direction: column;
    text-align: center;
  }

  .reader-content {
    font-size: 1rem;
    line-height: 1.9;
  }

  .reader-nav {
    flex-direction: column;
  }

  .about-author {
    flex-direction: column;
    text-align: center;
  }
}

@media (max-width: 480px) {
  .hero-title {
    font-size: 1.6rem;
  }

  .hero-tagline {
    font-size: 0.9rem;
  }

  .section {
    padding: 4rem 1.25rem;
  }

  .character-card-image {
    height: 280px;
  }
}

/* --- Reader Floating Catalog Overlay --- */
.reader-catalog-overlay {
  position: fixed;
  inset: 0;
  background: rgba(10, 11, 15, 0.4);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  z-index: 2000;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition-medium);
}

.reader-catalog-overlay.active {
  opacity: 1;
  visibility: visible;
}

.reader-catalog-content {
  width: 90%;
  max-width: 500px;
  background: var(--bg-card);
  border: 1px solid var(--border-glass);
  border-radius: 16px;
  max-height: 80vh;
  display: flex;
  flex-direction: column;
  box-shadow: 0 30px 60px rgba(0,0,0,0.5);
  transform: translateY(20px);
  transition: transform var(--transition-medium);
}

.reader-catalog-overlay.active .reader-catalog-content {
  transform: translateY(0);
}

.reader-catalog-header {
  padding: 1.5rem 2rem;
  border-bottom: 1px solid var(--border-subtle);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.reader-catalog-header h2 {
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--accent-gold);
}

.close-overlay {
  background: none;
  border: none;
  color: var(--text-muted);
  font-size: 1.5rem;
  cursor: pointer;
  transition: color var(--transition-fast);
}

.close-overlay:hover {
  color: var(--accent-gold);
}

.reader-catalog-index {
  flex: 1;
  overflow-y: auto;
  padding: 1rem;
}

.overlay-chapter-list {
  list-style: none;
}

.overlay-chapter-item {
  border-radius: 8px;
  transition: background var(--transition-fast);
}

.overlay-chapter-item a {
  display: flex;
  align-items: center;
  gap: 1.25rem;
  padding: 0.85rem 1.25rem;
  color: var(--text-secondary);
  font-size: 0.95rem;
  font-weight: 500;
}

/* --- Timeline (Story Log) --- */
.timeline {
  position: relative;
  max-width: 800px;
  margin: 2rem 0;
  padding-left: 2rem;
}

.timeline::before {
  content: '';
  position: absolute;
  top: 0.5rem;
  bottom: 0;
  left: 7px;
  width: 2px;
  background: linear-gradient(180deg, 
    var(--accent-gold) 0%, 
    var(--accent-gold-dim) 40%, 
    rgba(200, 168, 110, 0.05) 80%, 
    transparent 100%);
  box-shadow: 0 0 10px rgba(200, 168, 110, 0.1);
}

.timeline-item {
  position: relative;
  margin-bottom: 2rem;
  opacity: 0;
  transform: translateX(-10px);
  transition: all 0.6s var(--ease-out);
}

.timeline-item.visible {
  opacity: 1;
  transform: translateX(0);
}

.timeline-node {
  position: absolute;
  left: -29px;
  top: 0.4rem;
  width: 12px;
  height: 12px;
  background: var(--bg-primary);
  border: 2px solid var(--accent-gold);
  border-radius: 50%;
  z-index: 2;
  box-shadow: 0 0 8px var(--accent-gold-dim);
}

.timeline-item.active .timeline-node {
  background: var(--accent-gold);
  box-shadow: 0 0 15px var(--accent-gold);
  animation: pulse 2s infinite;
}

.timeline-content {
  background: var(--bg-glass);
  backdrop-filter: blur(5px);
  -webkit-backdrop-filter: blur(5px);
  border: 1px solid var(--border-glass);
  border-radius: 8px;
  padding: 1.25rem 1.75rem;
  transition: transform var(--transition-medium), border-color var(--transition-medium);
}

.timeline-content:hover {
  transform: translateX(5px);
  border-color: rgba(200, 168, 110, 0.3);
}

.timeline-time {
  display: block;
  font-family: var(--font-sans);
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--accent-gold-light);
  margin-bottom: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  text-shadow: 0 0 15px rgba(224, 201, 138, 0.2);
}

.timeline-body {
  font-family: var(--font-serif);
  font-size: 1rem;
  color: var(--text-secondary);
  line-height: 1.8;
  letter-spacing: 0.02em;
}

.timeline-item.active .timeline-body {
  color: var(--text-primary);
}

.overlay-chapter-item:hover {
  background: rgba(200, 168, 110, 0.1);
}

.overlay-chapter-item.active {
  background: var(--accent-gold-dim);
}

.overlay-chapter-item .ch-id {
  font-family: var(--font-sans);
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--accent-gold);
  opacity: 0.6;
}

.overlay-chapter-item .ch-name {
  font-weight: 600;
  color: var(--text-primary);
}

.overlay-chapter-item.active .ch-name {
  color: var(--accent-gold);
}

/* ============================================================
   READER TOOLBAR — 字号 / 书签 / 朗读
   ============================================================ */

/* Dynamic font size */
.reader-content p {
  font-size: var(--reader-font-size, 1.05rem);
}

/* Floating toolbar */
.reader-toolbar {
  position: fixed;
  right: 1.25rem;
  top: 50%;
  transform: translateY(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.35rem;
  z-index: 120;
  background: var(--bg-card);
  border: 1px solid var(--border-glass);
  border-radius: 14px;
  padding: 0.65rem 0.45rem;
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  box-shadow: 0 4px 24px rgba(0, 0, 0, 0.4);
}

.toolbar-btn {
  background: transparent;
  border: none;
  color: var(--text-secondary);
  cursor: pointer;
  padding: 0.45rem 0.5rem;
  border-radius: 8px;
  font-size: 0.82rem;
  font-family: var(--font-sans);
  font-weight: 700;
  transition: background var(--transition-fast), color var(--transition-fast);
  min-width: 34px;
  /* 让按钮成为 flex 容器，图标居中且不会被拉伸 */
  display: flex;
  align-items: center;
  justify-content: center;
  line-height: 1;
  user-select: none;
}

/* 图标尺寸锁定，防止 flex 拉伸变形 */
.toolbar-btn .iconify,
.toolbar-btn svg {
  flex-shrink: 0;
  width: 18px;
  height: 18px;
  display: block;
}

/* play/pause 切换用的包装 span */
.toolbar-btn .tts-icon-play,
.toolbar-btn .tts-icon-pause {
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.toolbar-btn:hover {
  background: var(--accent-gold-dim);
  color: var(--accent-gold);
}

.toolbar-btn.toolbar-btn-disabled {
  opacity: 0.25;
  pointer-events: none;
}

.toolbar-btn.toolbar-btn-active {
  color: var(--accent-gold);
  background: var(--accent-gold-dim);
}

.toolbar-divider {
  width: 20px;
  height: 1px;
  background: var(--border-glass);
  margin: 0.1rem 0;
}

/* Bookmark toast */
.bookmark-toast {
  position: fixed;
  bottom: 7rem;
  left: 50%;
  transform: translateX(-50%) translateY(0.5rem);
  opacity: 0;
  visibility: hidden;
  background: var(--bg-card);
  border: 1px solid var(--border-glass);
  border-radius: 12px;
  padding: 0.65rem 1.1rem;
  display: flex;
  align-items: center;
  gap: 0.75rem;
  z-index: 150;
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  font-family: var(--font-sans);
  font-size: 0.85rem;
  color: var(--text-secondary);
  white-space: nowrap;
  transition: opacity 0.25s var(--ease-out), transform 0.25s var(--ease-out), visibility 0.25s;
  box-shadow: 0 4px 20px rgba(0,0,0,0.4);
}

.bookmark-toast.active {
  opacity: 1;
  visibility: visible;
  transform: translateX(-50%) translateY(0);
}

.bookmark-toast button {
  background: var(--accent-gold-dim);
  border: 1px solid rgba(200, 168, 110, 0.25);
  color: var(--accent-gold);
  border-radius: 6px;
  padding: 0.25rem 0.7rem;
  cursor: pointer;
  font-size: 0.8rem;
  font-family: var(--font-sans);
  transition: background var(--transition-fast);
}

.bookmark-toast button:hover {
  background: rgba(200, 168, 110, 0.25);
}

.bookmark-toast button:last-child {
  background: transparent;
  border-color: transparent;
  color: var(--text-muted);
  padding: 0.25rem 0.4rem;
}

/* TTS active paragraph highlight */
.reader-content p.tts-active {
  background: rgba(200, 168, 110, 0.1);
  border-radius: 4px;
  margin-left: -0.4rem;
  padding-left: 0.4rem;
  transition: background 0.3s;
}

/* Mobile: full-width bottom bar */
@media (max-width: 900px) {
  .reader-toolbar {
    /* 重置桌面端定位 */
    right: auto;
    top: auto;
    transform: none;

    /* 底部近全宽条，两侧留边 */
    position: fixed;
    bottom: calc(0.75rem + env(safe-area-inset-bottom));
    left: 15px;
    right: 15px;
    width: auto;
    flex-direction: row;
    justify-content: space-evenly;
    align-items: center;
    border-radius: 16px;
    padding: 0.5rem 0.5rem;
    gap: 0;
    box-shadow: 0 4px 24px rgba(0, 0, 0, 0.5);
  }

  .toolbar-btn {
    flex: 1;
    min-width: 0;
    padding: 0.55rem 0.25rem;
    border-radius: 8px;
  }

  .toolbar-divider {
    width: 1px;
    height: 22px;
    flex-shrink: 0;
    margin: 0 0.15rem;
  }

  /* 把正文底部留出空间，避免被工具栏遮住 */
  .reader-container {
    padding-bottom: calc(4rem + env(safe-area-inset-bottom));
  }

  /* 书签 restore toast 上移，不被工具栏遮住 */
  .bookmark-toast {
    bottom: calc(4.5rem + env(safe-area-inset-bottom));
  }
}

/* On very narrow screens */
@media (max-width: 480px) {
  .reader-toolbar {
    font-size: 0.78rem;
  }

  .toolbar-btn {
    min-width: 28px;
    padding: 0.4rem;
  }
}

/* PWA 桌面模式（Safari 添加到主屏）：紧贴底部安全区，无额外浮动间距 */
@media (display-mode: standalone) and (max-width: 900px) {
  .reader-toolbar {
    bottom: 0;
    padding-bottom: env(safe-area-inset-bottom);
    border-radius: 16px 16px 0 0;
  }

  .reader-container {
    padding-bottom: calc(5rem + env(safe-area-inset-bottom));
  }

  .bookmark-toast {
    bottom: calc(5rem + env(safe-area-inset-bottom));
  }
}

/* Bookmark save snack (instant feedback, auto-dismiss) */
.bookmark-snack {
  position: fixed;
  bottom: 2rem;
  left: 50%;
  transform: translateX(-50%) translateY(1rem);
  opacity: 0;
  visibility: hidden;
  background: rgba(200, 168, 110, 0.18);
  border: 1px solid rgba(200, 168, 110, 0.4);
  color: var(--accent-gold-light);
  border-radius: 24px;
  padding: 0.6rem 1.4rem;
  font-family: var(--font-sans);
  font-size: 0.9rem;
  font-weight: 500;
  white-space: nowrap;
  z-index: 300;
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  pointer-events: none;
  transition: opacity 0.25s var(--ease-out), transform 0.25s var(--ease-out), visibility 0.25s;
}

.bookmark-snack.active {
  opacity: 1;
  visibility: visible;
  transform: translateX(-50%) translateY(0);
}

/* ============================================================
   Markdown 渲染补充样式
   ============================================================ */
/* 本地文件引用（不生成死链，仅显示文字提示样式）*/
.md-local-ref {
  color: var(--text-muted);
  font-style: italic;
  font-size: 0.9em;
}

/* 本地文件引用 → 图鉴详情页 / 词典浮窗链接 */
.md-local-link {
  color: var(--accent-gold);
  text-decoration: none;
  border-bottom: 1px dashed rgba(200, 168, 110, 0.5);
  font-size: 0.92em;
  cursor: pointer;
  transition: color 0.2s, border-color 0.2s;
}
.md-local-link:hover {
  color: #e8c87a;
  border-bottom-color: var(--accent-gold);
}
/* 词典触发链接加小图标提示 */
a.glossary-link::after {
  content: ' ⓘ';
  font-size: 0.78em;
  opacity: 0.6;
  vertical-align: super;
}

/* ── 词典浮窗 ─────────────────────────────────────────── */
#glossary-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.65);
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
  z-index: 2000;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.25s ease;
}
#glossary-overlay.active {
  opacity: 1;
  pointer-events: auto;
}
#glossary-panel {
  background: #12131a;
  border: 1px solid rgba(200, 168, 110, 0.25);
  border-radius: 12px;
  width: min(680px, 92vw);
  max-height: 80vh;
  display: flex;
  flex-direction: column;
  box-shadow: 0 24px 64px rgba(0, 0, 0, 0.6);
  transform: translateY(16px) scale(0.97);
  transition: transform 0.25s ease;
}
#glossary-overlay.active #glossary-panel {
  transform: translateY(0) scale(1);
}
#glossary-panel-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 1rem;
  padding: 1.4rem 1.6rem 1rem;
  border-bottom: 1px solid rgba(200, 168, 110, 0.15);
  flex-shrink: 0;
}
#glossary-panel-title {
  font-family: 'Noto Serif SC', serif;
  font-size: 1.2rem;
  font-weight: 600;
  color: var(--accent-gold);
  line-height: 1.3;
}
#glossary-panel-subtitle {
  font-size: 0.78rem;
  color: var(--text-muted);
  margin-top: 0.2rem;
  letter-spacing: 0.04em;
}
#glossary-close {
  background: none;
  border: 1px solid rgba(200, 168, 110, 0.2);
  color: var(--text-muted);
  width: 28px;
  height: 28px;
  border-radius: 50%;
  font-size: 0.85rem;
  cursor: pointer;
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: border-color 0.2s, color 0.2s;
  margin-top: 2px;
}
#glossary-close:hover {
  border-color: var(--accent-gold);
  color: var(--accent-gold);
}
#glossary-panel-body {
  overflow-y: auto;
  padding: 1.2rem 1.6rem 1.6rem;
  color: var(--text-secondary);
  font-size: 0.9rem;
  line-height: 1.8;
}
#glossary-panel-body::-webkit-scrollbar { width: 4px; }
#glossary-panel-body::-webkit-scrollbar-thumb {
  background: rgba(200, 168, 110, 0.3);
  border-radius: 2px;
}
.glossary-section {
  margin-bottom: 1.4rem;
}
.glossary-section:last-child { margin-bottom: 0; }
.glossary-section h4 {
  font-family: 'Noto Serif SC', serif;
  font-size: 0.92rem;
  color: var(--accent-gold);
  margin: 0 0 0.5rem;
  font-weight: 600;
  letter-spacing: 0.02em;
}
.glossary-section p { margin: 0 0 0.6rem; }
.glossary-section ul {
  margin: 0.4rem 0;
  padding-left: 1.2rem;
}
.glossary-section li { margin-bottom: 0.3rem; }
.glossary-section strong { color: var(--text-primary); }

/* 图鉴/阅读页 blockquote */
.detail-body blockquote {
  border-left: 3px solid var(--accent-gold);
  margin: 0.8em 0;
  padding: 0.5em 1em;
  color: var(--text-muted);
  font-style: italic;
}

/* 图鉴/阅读页 水平线 */
.detail-body .md-hr,
.section-hr {
  border: none;
  border-top: 1px solid rgba(200, 168, 110, 0.2);
  margin: 1.2em 0;
}