/* ============================================
   《食戟之灵》料理内容图文文档 — 共享样式表
   ============================================ */

/* --- Google Fonts --- */
@import url('https://fonts.googleapis.com/css2?family=Lora:ital,wght@0,400;0,700;1,400&family=Work+Sans:ital,wght@0,400;0,700;1,400&display=swap');

/* --- CSS Variables --- */
:root {
  --bg: #FFF8F0;
  --bg2: #FFF0E0;
  --ink: #2C3E50;
  --muted: #7F8C8D;
  --rule: #E0D5C8;
  --accent: #C0392B;
  --accent2: #F39C12;
  --header-height: 84px;

  /* Cuisine tag colors */
  --tag-jp: #D32F2F;
  --tag-fr: #1565C0;
  --tag-it: #2E7D32;
  --tag-cn: #FF8F00;
  --tag-other: #6A1B9A;
  --tag-molecular: #00838F;

  /* Battle Section Colors */
  --battle-creative: #F39C12;
  --battle-authority: #6A1B9A;
  --battle-gold: #FFD700;

  /* Typography */
  --font-heading: 'Lora', 'Georgia', serif;
  --font-body: 'Work Sans', 'Helvetica Neue', sans-serif;
  --font-mono: 'Courier New', monospace;

  /* Spacing */
  --max-width: 1080px;
  --content-width: 860px;
  --section-gap: 3rem;
  --card-radius: 8px;
}

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

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

body {
  font-family: var(--font-body);
  color: var(--ink);
  background-color: var(--bg);
  /* 添加轻微的纸质纹理 SVG 背景 */
  background-image: url("data:image/svg+xml,%3Csvg width='100' height='100' viewBox='0 0 100 100' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noiseFilter'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.8' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noiseFilter)' opacity='0.05'/%3E%3C/svg%3E");
  line-height: 1.7;
  min-height: 100vh;
}

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

a {
  color: var(--accent);
  text-decoration: none;
  transition: color 0.2s;
}
a:hover {
  color: var(--accent2);
  text-decoration: underline;
}

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

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0,0,0,0);
  border: 0;
}

/* --- Site Header / Navigation --- */
.site-header {
  background: var(--ink);
  color: #fff;
  position: sticky;
  top: 0;
  z-index: 100;
  box-shadow: 0 2px 8px rgba(0,0,0,0.15);
}

.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 0.75rem;
  padding-bottom: 0.75rem;
}

.site-logo {
  font-family: var(--font-heading);
  font-size: 1.25rem;
  font-weight: 700;
  color: #fff;
  text-decoration: none;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}
.site-logo:hover {
  color: var(--accent2);
  text-decoration: none;
}
.site-logo .logo-icon {
  font-size: 1.5rem;
}

.site-nav {
  display: flex;
  gap: 0.25rem;
  flex-wrap: wrap;
}

.site-nav a {
  color: rgba(255,255,255,0.8);
  font-size: 0.8rem;
  padding: 0.35rem 0.6rem;
  border-radius: 4px;
  transition: all 0.2s;
  white-space: nowrap;
}
.site-nav a:hover,
.site-nav a.active {
  color: #fff;
  background: var(--accent);
  text-decoration: none;
}

.nav-toggle {
  display: none;
  background: none;
  border: none;
  color: #fff;
  font-size: 1.5rem;
  cursor: pointer;
  padding: 0.25rem;
}

/* --- Hero Section --- */
.hero {
  background: linear-gradient(-45deg, #C0392B, #E74C3C, #F39C12, #C0392B);
  background-size: 400% 400%;
  animation: gradientBG 15s ease infinite;
  color: #fff;
  padding: 4rem 0;
  text-align: center;
}
.hero h1 {
  font-family: var(--font-heading);
  font-size: 2.5rem;
  font-weight: 700;
  margin-bottom: 0.75rem;
  letter-spacing: 0.02em;
  text-shadow: 0 2px 10px rgba(0,0,0,0.2);
}

.hero .subtitle {
  font-size: 1.1rem;
  opacity: 0.9;
  max-width: 600px;
  margin: 0 auto 1.5rem;
  line-height: 1.6;
}
.hero .stats {
  display: flex;
  justify-content: center;
  gap: 2rem;
  flex-wrap: wrap;
}
.hero .stat {
  text-align: center;
}
.hero .stat-number {
  font-family: var(--font-heading);
  font-size: 2rem;
  font-weight: 700;
  color: var(--accent2);
}
.hero .stat-label {
  font-size: 0.85rem;
  opacity: 0.8;
}

/* --- Section Headings --- */
.section-title {
  font-family: var(--font-heading);
  font-size: 1.8rem;
  font-weight: 700;
  color: var(--ink);
  margin-bottom: 1.5rem;
  padding-bottom: 0.75rem;
  border-bottom: 3px solid var(--accent);
  position: relative;
}
/* 升级版装饰元素：渐变色条 + 偏移感 */
.section-title::after {
  content: '';
  position: absolute;
  bottom: -3px;
  left: 0;
  width: 80px;
  height: 3px;
  background: linear-gradient(to right, var(--accent2), var(--accent));
  border-radius: 2px;
}
.section-title .title-en {
  display: block;
  font-size: 0.85rem;
  font-weight: 400;
  color: var(--muted);
  font-family: var(--font-body);
  margin-top: 0.25rem;
}

/* --- Arc Overview --- */
.arc-overview {
  background: var(--bg2);
  border-radius: var(--card-radius);
  padding: 2rem;
  margin-bottom: var(--section-gap);
  border-left: 4px solid var(--accent);
}
.arc-overview h2 {
  font-family: var(--font-heading);
  font-size: 1.5rem;
  margin-bottom: 1rem;
  color: var(--accent);
}
.arc-overview p {
  margin-bottom: 0.75rem;
  line-height: 1.8;
}
.arc-meta {
  display: flex;
  gap: 1.5rem;
  flex-wrap: wrap;
  margin-top: 1rem;
  padding-top: 1rem;
  border-top: 1px solid var(--rule);
}
.arc-meta-item {
  font-size: 0.9rem;
}
.arc-meta-item strong {
  color: var(--accent);
}

/* --- Arc Navigation Cards (Index Page) --- */
.arc-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 1.5rem;
  margin: 2rem 0;
}

.arc-card {
  background: #fff;
  border-radius: var(--card-radius);
  overflow: hidden;
  box-shadow: 0 2px 8px rgba(0,0,0,0.06);
  transition: transform 0.3s cubic-bezier(0.175, 0.885, 0.32, 1.275), box-shadow 0.3s ease;
  text-decoration: none;
  color: var(--ink);
  display: block;
}
.arc-card:hover {
  transform: translateY(-6px) scale(1.01);
  box-shadow: 0 12px 24px rgba(0,0,0,0.15);
  text-decoration: none;
  color: var(--ink);
}

.arc-card-banner {
  height: 120px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-heading);
  font-size: 2.5rem;
  font-weight: 700;
  color: rgba(255,255,255,0.3);
}
.arc-card:nth-child(1) .arc-card-banner { background: linear-gradient(135deg, #C0392B, #E74C3C); }
.arc-card:nth-child(2) .arc-card-banner { background: linear-gradient(135deg, #1565C0, #42A5F5); }
.arc-card:nth-child(3) .arc-card-banner { background: linear-gradient(135deg, #F39C12, #F1C40F); }
.arc-card:nth-child(4) .arc-card-banner { background: linear-gradient(135deg, #D32F2F, #FF5722); }
.arc-card:nth-child(5) .arc-card-banner { background: linear-gradient(135deg, #2E7D32, #66BB6A); }
.arc-card:nth-child(6) .arc-card-banner { background: linear-gradient(135deg, #6A1B9A, #AB47BC); }
.arc-card:nth-child(7) .arc-card-banner { background: linear-gradient(135deg, #00838F, #26C6DA); }
.arc-card:nth-child(8) .arc-card-banner { background: linear-gradient(135deg, #37474F, #78909C); }
.arc-card:nth-child(9) .arc-card-banner { background: linear-gradient(135deg, #1A237E, #3F51B5); }
.arc-card:nth-child(10) .arc-card-banner { background: linear-gradient(135deg, #4E342E, #8D6E63); }

.arc-card-body {
  padding: 1.25rem;
}
.arc-card-body h3 {
  font-family: var(--font-heading);
  font-size: 1.15rem;
  margin-bottom: 0.5rem;
}
.arc-card-body .arc-card-desc {
  font-size: 0.85rem;
  color: var(--muted);
  margin-bottom: 0.75rem;
  line-height: 1.5;
}
.arc-card-tags {
  display: flex;
  gap: 0.5rem;
  flex-wrap: wrap;
}

/* --- Cuisine / Technique Tags --- */
.tag {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 600;
  padding: 0.2rem 0.6rem;
  border-radius: 3px;
  color: #fff;
  white-space: nowrap;
}
.tag-jp { background: var(--tag-jp); }
.tag-fr { background: var(--tag-fr); }
.tag-it { background: var(--tag-it); }
.tag-cn { background: var(--tag-cn); }
.tag-other { background: var(--tag-other); }
.tag-molecular { background: var(--tag-molecular); }

/* Flavor Tags */
.tag-flavor {
  background: #f0f0f0;
  color: #666;
  border: 1px solid var(--rule);
}
.tag-flavor-crispy { background: #FFF3E0; color: #E65100; border-color: #FFE0B2; } /* 酥脆 - 橙色系 */
.tag-flavor-rich { background: #F3E5F5; color: #7B1FA2; border-color: #E1BEE7; }   /* 浓郁 - 紫色系 */
.tag-flavor-sweet-sour { background: #E8F5E9; color: #2E7D32; border-color: #C8E6C9; } /* 酸甜 - 绿色系 */
.tag-flavor-spicy { background: #FFEBEE; color: #C62828; border-color: #FFCDD2; }     /* 辛辣 - 红色系 */
.tag-flavor-fresh { background: #E3F2FD; color: #1565C0; border-color: #BBDEFB; }     /* 清新 - 蓝色系 */

.tag-outline {
  background: transparent;
  border: 1px solid var(--rule);
  color: var(--muted);
}

/* --- Filter Bar --- */
.filter-bar {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 0.5rem;
  flex-wrap: wrap;
  margin-bottom: 2rem;
  padding: 1rem;
  background: #fff;
  border-radius: var(--card-radius);
  box-shadow: 0 1px 4px rgba(0,0,0,0.06);
  position: sticky;
  top: var(--header-height);
  z-index: 50;
}
.filter-bar .filter-label {
  font-weight: 600;
  font-size: 0.85rem;
  color: var(--muted);
  align-self: center;
  margin-right: 0.5rem;
}
.filter-btn {
  font-size: 0.8rem;
  padding: 0.35rem 0.75rem;
  border: 1px solid var(--rule);
  border-radius: 20px;
  background: #fff;
  color: var(--ink);
  cursor: pointer;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  font-family: var(--font-body);
}
.filter-btn:hover {
  border-color: var(--accent);
  color: var(--accent);
}
.filter-btn.active {
  background: var(--accent);
  border-color: var(--accent);
  color: #fff;
}

/* --- Dish Card --- */
.dish-card {
  background: #fff;
  border-radius: var(--card-radius);
  box-shadow: 0 2px 8px rgba(0,0,0,0.06);
  margin-bottom: 2rem;
  overflow: hidden;
  transition: transform 0.3s cubic-bezier(0.175, 0.885, 0.32, 1.275), box-shadow 0.3s ease;
}
.dish-card:hover {
  transform: translateY(-6px) scale(1.01);
  box-shadow: 0 12px 24px rgba(0,0,0,0.15);
}

.dish-header {
  padding: 1.5rem 1.5rem 0.75rem;
  border-bottom: 1px solid var(--rule);
}
.dish-header h2 {
  font-family: var(--font-heading);
  font-size: 1.4rem;
  font-weight: 700;
  color: var(--ink);
  margin-bottom: 0.25rem;
}
.dish-name-original {
  font-size: 0.9rem;
  color: var(--muted);
  font-style: italic;
}
.dish-name-en {
  font-size: 0.8rem;
  color: var(--muted);
}

/* Dish Meta Grid */
.dish-meta {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
  gap: 1rem;
  padding: 1rem 1.5rem;
  background: var(--bg2);
  font-size: 0.85rem;
}
.meta-item {
  display: flex;
  gap: 0.4rem;
}
.meta-label {
  color: var(--muted);
  font-weight: 600;
  white-space: nowrap;
}
.meta-value {
  color: var(--ink);
}

/* Dish Image */
.dish-image {
  padding: 1.5rem;
  text-align: center;
}
.dish-image img {
  max-height: 400px;
  object-fit: contain;
  margin: 0 auto;
  border-radius: 4px;
  border: 1px solid var(--rule);
}
.dish-image .image-source {
  font-size: 0.75rem;
  color: var(--muted);
  margin-top: 0.5rem;
}

/* Dish Content Sections */
.dish-content {
  padding: 0 1.5rem 1.5rem;
}
.dish-content h3 {
  font-family: var(--font-heading);
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--accent);
  margin: 1.5rem 0 0.75rem;
  padding-bottom: 0.4rem;
  border-bottom: 2px solid var(--accent2);
}
.dish-content h3:first-child {
  margin-top: 0;
}
.dish-content p {
  margin-bottom: 0.75rem;
  line-height: 1.8;
}
.dish-content ul,
.dish-content ol {
  margin: 0.5rem 0 1rem 1.5rem;
}
.dish-content li {
  margin-bottom: 0.4rem;
  line-height: 1.7;
}

/* Recipe Section */
.recipe-ingredients {
  background: var(--bg2);
  border-radius: var(--card-radius);
  padding: 1rem 1.25rem;
  margin-bottom: 1rem;
}
.recipe-ingredients h4 {
  font-size: 0.95rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
  color: var(--ink);
}
.recipe-ingredients ul {
  list-style: none;
  margin-left: 0;
  padding-left: 0;
}
.recipe-ingredients li {
  padding: 0.25rem 0;
  border-bottom: 1px dashed var(--rule);
  font-size: 0.9rem;
}
.recipe-ingredients li:last-child {
  border-bottom: none;
}

/* Custom Checkbox Styles */
.ingredient-item {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  cursor: pointer;
  transition: color 0.2s ease;
  user-select: none;
}
.ingredient-item input[type="checkbox"] {
  appearance: none;
  -webkit-appearance: none;
  width: 18px;
  height: 18px;
  border: 2px solid var(--rule);
  border-radius: 4px;
  cursor: pointer;
  position: relative;
  transition: all 0.2s ease;
  flex-shrink: 0;
}
.ingredient-item input[type="checkbox"]:checked {
  background-color: var(--accent);
  border-color: var(--accent);
}
.ingredient-item input[type="checkbox"]:checked::after {
  content: '✓';
  position: absolute;
  color: #fff;
  font-size: 12px;
  font-weight: bold;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
}
.ingredient-item input[type="checkbox"]:checked + span {
  color: var(--muted);
  text-decoration: line-through;
}
.ingredient-item:hover {
  color: var(--accent);
}


.recipe-steps {
  margin: 1rem 0;
}
.recipe-steps h4 {
  font-size: 0.95rem;
  font-weight: 700;
  margin-bottom: 0.75rem;
  color: var(--ink);
}
.recipe-steps ol {
  counter-reset: step;
  list-style: none;
  margin-left: 0;
}
.recipe-steps li {
  counter-increment: step;
  position: relative;
  padding: 0.75rem 0 0.75rem 2.5rem;
  border-left: 2px solid var(--rule);
  margin-left: 1rem;
}
.recipe-steps li::before {
  content: counter(step);
  position: absolute;
  left: -0.85rem;
  top: 0.65rem;
  width: 1.5rem;
  height: 1.5rem;
  background: var(--accent);
  color: #fff;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.75rem;
  font-weight: 700;
}
.recipe-steps li:last-child {
  border-left-color: transparent;
}

.recipe-tips {
  background: #FFF3E0;
  border-left: 4px solid var(--accent2);
  border-radius: 0 var(--card-radius) var(--card-radius) 0;
  padding: 1rem 1.25rem;
  margin: 1rem 0;
}
.recipe-tips h4 {
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--accent2);
  margin-bottom: 0.5rem;
}

/* Story Section */
.dish-story {
  background: var(--bg);
  border-radius: var(--card-radius);
  padding: 1rem 1.25rem;
  margin: 1rem 0;
  border: 1px solid var(--rule);
}
.dish-story h3 {
  border-bottom-color: var(--accent) !important;
}

/* Dish Stats */
.dish-stats {
  display: flex;
  gap: 1.5rem;
  flex-wrap: wrap;
  padding: 1rem;
  background: var(--bg2);
  border-radius: var(--card-radius);
  margin-top: 1rem;
  font-size: 0.9rem;
}
.dish-stats .stat-item {
  text-align: center;
}
.dish-stats .stat-value {
  font-family: var(--font-heading);
  font-size: 1.3rem;
  font-weight: 700;
  color: var(--accent);
}
.dish-stats .stat-label {
  font-size: 0.75rem;
  color: var(--muted);
}

/* Collapsible Sections */
.collapsible-toggle {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  cursor: pointer;
  user-select: none;
  padding: 0.75rem 1.5rem;
  background: var(--bg2);
  border: none;
  border-top: 1px solid var(--rule);
  width: 100%;
  font-family: var(--font-body);
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--accent);
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}
.collapsible-toggle:hover {
  background: var(--rule);
  padding-left: 1.75rem;
}
.collapsible-toggle::after {
  content: '▼';
  font-size: 0.7rem;
  margin-left: auto;
  transition: transform 0.2s;
}
.collapsible-toggle.open::after {
  transform: rotate(180deg);
}
.collapsible-content {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s ease;
}
.collapsible-content.open {
  max-height: 5000px;
}

/* --- Battle Section --- */
.battle-section {
  margin: 3rem 0;
  position: relative;
}
.battle-header {
  text-align: center;
  padding: 2rem 1.5rem;
  background: linear-gradient(-45deg, #C0392B, #E74C3C, #F39C12, #C0392B);
  background-size: 400% 400%;
  animation: gradientBG 15s ease infinite;
  color: #fff;
  border-radius: var(--card-radius) var(--card-radius) 0 0;
  box-shadow: 0 4px 12px rgba(192, 57, 43, 0.3);
}
.battle-header h3 {
  font-family: var(--font-heading);
  font-size: 1.5rem;
  margin-bottom: 0.5rem;
  text-shadow: 0 2px 4px rgba(0,0,0,0.2);
}
.battle-header p {
  font-size: 0.95rem;
  opacity: 0.9;
}
.battle-body {
  background: #fff;
  border-radius: 0 0 var(--card-radius) var(--card-radius);
  padding: 2.5rem 1.5rem;
  box-shadow: 0 8px 24px rgba(0,0,0,0.1);
  border: 1px solid var(--rule);
  border-top: none;
}

.battle-vs {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 2rem;
  margin: 2rem 0;
  flex-wrap: wrap;
}
.battle-chef {
  text-align: center;
  flex: 1;
  min-width: 200px;
  padding: 1.5rem;
  border-radius: var(--card-radius);
  transition: all 0.3s ease;
}
/* Creative Side (Soma) */
.battle-chef--creative {
  background: rgba(243, 156, 18, 0.05);
  border: 2px solid transparent;
}
.battle-chef--creative:hover {
  border-color: var(--battle-creative);
  background: rgba(243, 156, 18, 0.1);
  transform: scale(1.02);
}
.battle-chef--creative .chef-name {
  color: var(--battle-creative);
}
/* Authority Side (Enemy) */
.battle-chef--authority {
  background: rgba(106, 27, 154, 0.05);
  border: 2px solid transparent;
}
.battle-chef--authority:hover {
  border-color: var(--battle-authority);
  background: rgba(106, 27, 154, 0.1);
  transform: scale(1.02);
}
.battle-chef--authority .chef-name {
  color: var(--battle-authority);
}

.battle-chef .chef-name {
  font-family: var(--font-heading);
  font-size: 1.25rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
}
.battle-chef .chef-dish {
  font-size: 0.9rem;
  color: var(--muted);
  margin-bottom: 0.75rem;
}

.battle-vs-text {
  font-family: var(--font-heading);
  font-size: 2rem;
  font-weight: 900;
  color: var(--accent);
  position: relative;
  z-index: 1;
  padding: 0.5rem 1rem;
}
.battle-vs-text::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 80px;
  height: 80px;
  background: radial-gradient(circle, rgba(192, 57, 43, 0.2) 0%, transparent 70%);
  z-index: -1;
  animation: vs-pulse 2s infinite ease-in-out;
}

@keyframes vs-pulse {
  0% { transform: translate(-50%, -50%) scale(1); opacity: 0.5; }
  50% { transform: translate(-50%, -50%) scale(1.5); opacity: 0.8; }
  100% { transform: translate(-50%, -50%) scale(1); opacity: 0.5; }
}

.battle-result {
  text-align: center;
  padding: 1.5rem;
  background: var(--bg2);
  border-radius: var(--card-radius);
  margin-top: 2rem;
  font-weight: 600;
  border: 1px solid var(--rule);
}
.battle-result .winner {
  color: var(--accent);
  font-size: 1.3rem;
  display: block;
  margin-bottom: 0.5rem;
  animation: winner-glow 2s infinite alternate;
}

@keyframes winner-glow {
  from { text-shadow: 0 0 5px rgba(192, 57, 43, 0.2); }
  to { text-shadow: 0 0 15px rgba(192, 57, 43, 0.6), 0 0 20px var(--battle-gold); }
}

/* --- Chapter Navigation (Arc Pages) --- */
.chapter-nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 2rem 0;
  border-top: 2px solid var(--rule);
  margin-top: 3rem;
}
.chapter-nav a {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-weight: 600;
  font-size: 0.9rem;
}
.chapter-nav .nav-prev::before { content: '← '; }
.chapter-nav .nav-next::after { content: ' →'; }

/* --- Side TOC (Arc Pages) --- */
.side-toc {
  position: fixed;
  top: var(--header-height);
  right: 1rem;
  width: 200px;
  max-height: calc(100vh - var(--header-height) - 2rem);
  overflow-y: auto;
  background: rgba(255, 255, 255, 0.7);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border: 1px solid rgba(255, 255, 255, 0.3);
  border-radius: var(--card-radius);
  box-shadow: 0 4px 12px rgba(0,0,0,0.08);
  padding: 1rem;
  font-size: 0.78rem;
  z-index: 60;
  transition: all 0.3s ease;
}
.side-toc h4 {
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--accent);
  margin-bottom: 0.5rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}
.side-toc ul {
  list-style: none;
  margin: 0;
}
.side-toc li {
  margin-bottom: 0.25rem;
}
.side-toc a {
  color: var(--muted);
  display: block;
  padding: 0.2rem 0;
  transition: color 0.2s;
  line-height: 1.4;
}
.side-toc a:hover,
.side-toc a.active {
  color: var(--accent);
  text-decoration: none;
}

/* --- Scroll Reveal Animations --- */
.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: all 0.8s cubic-bezier(0.22, 1, 0.36, 1);
  will-change: transform, opacity;
}
.reveal-visible {
  opacity: 1;
  transform: translateY(0);
}

/* 优化锚点跳转位置，预留 (顶栏 + 筛选栏) 高度 + 2rem 呼吸间距 */
.dish-card, 
.battle-section, 
.arc-overview, 
.section-title {
  scroll-margin-top: calc(var(--total-offset) + 2rem);
}

.back-to-top {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  width: 40px;
  height: 40px;
  background: var(--accent);
  color: #fff;
  border: none;
  border-radius: 50%;
  font-size: 1.2rem;
  cursor: pointer;
  box-shadow: 0 2px 8px rgba(0,0,0,0.2);
  opacity: 0;
  visibility: hidden;
  transition: all 0.3s;
  z-index: 90;
  display: flex;
  align-items: center;
  justify-content: center;
}
.back-to-top.visible {
  opacity: 1;
  visibility: visible;
}
.back-to-top:hover {
  background: var(--accent2);
  transform: translateY(-2px);
}

@keyframes gradientBG {
  0% { background-position: 0% 50%; }
  50% { background-position: 100% 50%; }
  100% { background-position: 0% 50%; }
}

/* --- Footer --- */
.site-footer {
  background: var(--ink);
  color: rgba(255,255,255,0.7);
  padding: 2rem 0;
  margin-top: 4rem;
  font-size: 0.85rem;
}
.site-footer .container {
  text-align: center;
}
.site-footer a {
  color: var(--accent2);
}
.site-footer .copyright {
  margin-top: 0.5rem;
  font-size: 0.75rem;
  color: rgba(255,255,255,0.4);
}

/* --- Cuisine Index Section --- */
.cuisine-index {
  margin: 2rem 0;
}
.cuisine-index h2 {
  font-family: var(--font-heading);
  font-size: 1.4rem;
  margin-bottom: 1rem;
}
.cuisine-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 1rem;
}
.cuisine-card {
  background: #fff;
  border-radius: var(--card-radius);
  padding: 1.25rem;
  text-align: center;
  box-shadow: 0 1px 4px rgba(0,0,0,0.06);
  transition: transform 0.2s;
}
.cuisine-card:hover {
  transform: translateY(-2px);
}
.cuisine-card .cuisine-icon {
  font-size: 2rem;
  margin-bottom: 0.5rem;
}
.cuisine-card h3 {
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: 0.25rem;
}
.cuisine-card .cuisine-count {
  font-size: 0.8rem;
  color: var(--muted);
}

/* --- Simple Dish List (for BLUE preliminaries) --- */
.dish-list-simple {
  list-style: none;
  margin: 1rem 0;
}
.dish-list-simple li {
  padding: 0.75rem 1rem;
  border-bottom: 1px solid var(--rule);
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  font-size: 0.9rem;
}
.dish-list-simple li:last-child {
  border-bottom: none;
}
.dish-list-simple .dish-list-name {
  font-weight: 600;
}
.dish-list-simple .dish-list-chef {
  color: var(--muted);
  font-size: 0.8rem;
}

/* --- Responsive --- */
/* --- Mobile TOC Trigger --- */
.toc-trigger {
  position: fixed;
  bottom: 2rem;
  left: 2rem;
  width: 48px;
  height: 48px;
  background: var(--accent);
  color: #fff;
  border: none;
  border-radius: 50%;
  font-size: 1.5rem;
  cursor: pointer;
  box-shadow: 0 4px 12px rgba(0,0,0,0.3);
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}
.toc-trigger:hover {
  background: var(--accent2);
  transform: scale(1.1);
}

/* Mobile TOC State */
.side-toc.mobile-open {
  top: 0;
  right: 0;
  width: 100%;
  max-width: 300px;
  height: 100vh;
  max-height: 100vh;
  background: rgba(255, 255, 255, 0.95);
  border-radius: 0;
  border: none;
  box-shadow: -5px 0 15px rgba(0,0,0,0.1);
  z-index: 110;
  padding: 2rem 1.5rem;
  transform: translateX(0);
}

.side-toc.mobile-hidden {
  transform: translateX(100%);
}

@media (max-width: 1024px) {
  .side-toc {
    position: fixed;
    top: 0;
    right: 0;
    width: 300px;
    height: 100vh;
    max-height: 100vh;
    z-index: 110;
    transform: translateX(100%);
    transition: transform 0.3s ease;
    border-radius: 0;
    background: #fff;
  }
  .side-toc.mobile-open {
    transform: translateX(0);
  }
}

@media (min-width: 1025px) {
  .toc-trigger {
    display: none;
  }
}

@media (max-width: 768px) {
  .site-nav {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--ink);
    flex-direction: column;
    padding: 1rem;
    box-shadow: 0 4px 12px rgba(0,0,0,0.2);
  }
  .site-nav.open {
    display: flex;
  }
  .site-nav a {
    padding: 0.5rem 1rem;
    font-size: 0.9rem;
  }
  .nav-toggle {
    display: block;
  }
  .site-header .container {
    position: relative;
  }

  .hero h1 {
    font-size: 1.8rem;
  }
  .hero .stats {
    gap: 1rem;
  }

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

  .dish-meta {
    grid-template-columns: 1fr;
  }

  .battle-vs {
    flex-direction: column;
    gap: 0.75rem;
  }
  .battle-vs-text {
    font-size: 1.2rem;
  }

  .filter-bar {
    position: sticky;
    top: var(--header-height);
  }

  .chapter-nav {
    flex-direction: column;
    gap: 1rem;
    text-align: center;
  }
}

@media (max-width: 480px) {
  html {
    font-size: 15px;
  }
  .hero {
    padding: 2.5rem 0;
  }
  .hero h1 {
    font-size: 1.5rem;
  }
  .dish-header {
    padding: 1rem 1rem 0.5rem;
  }
  .dish-content {
    padding: 0 1rem 1rem;
  }
  .dish-image {
    padding: 1rem;
  }
}

/* --- Print --- */
@media print {
  .site-header,
  .side-toc,
  .back-to-top,
  .filter-bar,
  .collapsible-toggle {
    display: none !important;
  }
  .collapsible-content {
    max-height: none !important;
    overflow: visible !important;
  }
  .dish-card {
    break-inside: avoid;
    box-shadow: none;
    border: 1px solid var(--rule);
  }
  body {
    background: #fff;
  }
}