/* ============================================================
   51漫画 - 全局样式与设计系统
   风格：现代科技感 + 二次元活力
   渐变Banner · 圆角卡片 · 毛玻璃 · 响应式 · 暗色模式
   ============================================================ */

:root {
  /* 主色板 - 活力紫蓝渐变 */
  --primary: #6c5ce7;
  --primary-light: #a29bfe;
  --secondary: #fd79a8;
  --accent: #00cec9;
  --accent-warm: #fdcb6e;

  /* 背景与表面 */
  --bg: #f8f9fe;
  --bg-gradient: linear-gradient(135deg, #e8eafc 0%, #f3e8ff 50%, #e0f7fa 100%);
  --surface: rgba(255, 255, 255, 0.75);
  --surface-solid: #ffffff;
  --surface-hover: rgba(255, 255, 255, 0.95);

  /* 文本 */
  --text-primary: #2d3436;
  --text-secondary: #636e72;
  --text-muted: #b2bec3;

  /* 边框与阴影 */
  --border: rgba(108, 92, 231, 0.12);
  --shadow-sm: 0 4px 15px rgba(0, 0, 0, 0.06);
  --shadow-md: 0 8px 30px rgba(108, 92, 231, 0.12);
  --shadow-lg: 0 16px 48px rgba(108, 92, 231, 0.18);

  /* 圆角 */
  --radius-sm: 12px;
  --radius-md: 18px;
  --radius-lg: 28px;
  --radius-full: 50px;

  /* 间距 */
  --space-xs: 8px;
  --space-sm: 16px;
  --space-md: 24px;
  --space-lg: 40px;
  --space-xl: 64px;

  /* 过渡 */
  --transition: all 0.35s cubic-bezier(0.25, 0.46, 0.45, 0.94);

  /* 毛玻璃 */
  --glass-blur: blur(18px) saturate(180%);
  --glass-bg: rgba(255, 255, 255, 0.55);
  --glass-border: 1px solid rgba(255, 255, 255, 0.6);

  /* 暗色模式变量 (通过 [data-theme="dark"] 覆盖) */
  --dark-bg: #0f1023;
  --dark-bg-gradient: linear-gradient(135deg, #1a1b3a 0%, #2d1b4e 50%, #0f1f33 100%);
  --dark-surface: rgba(30, 32, 60, 0.7);
  --dark-surface-solid: #1e2040;
  --dark-text-primary: #f0f0f5;
  --dark-text-secondary: #b8b8d0;
  --dark-text-muted: #6a6a8a;
  --dark-border: rgba(162, 155, 254, 0.15);
  --dark-shadow-sm: 0 4px 20px rgba(0, 0, 0, 0.3);
  --dark-shadow-md: 0 8px 40px rgba(108, 92, 231, 0.25);
  --dark-glass-bg: rgba(20, 22, 45, 0.6);
  --dark-glass-border: 1px solid rgba(162, 155, 254, 0.2);
}

/* ============================================================
   基础重置与全局元素
   ============================================================ */

*,
*::before,
*::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

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

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC",
    "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
  background: var(--bg-gradient);
  background-attachment: fixed;
  color: var(--text-primary);
  line-height: 1.7;
  min-height: 100vh;
  transition: background 0.5s ease, color 0.3s ease;
  overflow-x: hidden;
  position: relative;
}

/* 背景装饰 - 动态光斑 */
body::before {
  content: "";
  position: fixed;
  top: -20%;
  left: -10%;
  width: 60vw;
  height: 60vw;
  background: radial-gradient(circle, rgba(108, 92, 231, 0.12) 0%, transparent 70%);
  border-radius: 50%;
  z-index: -1;
  animation: floatBlob 20s ease-in-out infinite alternate;
  pointer-events: none;
}

body::after {
  content: "";
  position: fixed;
  bottom: -15%;
  right: -10%;
  width: 50vw;
  height: 50vw;
  background: radial-gradient(circle, rgba(253, 121, 168, 0.1) 0%, transparent 70%);
  border-radius: 50%;
  z-index: -1;
  animation: floatBlob 25s ease-in-out infinite alternate-reverse;
  pointer-events: none;
}

@keyframes floatBlob {
  0% { transform: translate(0, 0) scale(1); }
  100% { transform: translate(40px, -30px) scale(1.1); }
}

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

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

a:hover {
  color: var(--secondary);
}

ul, ol {
  list-style-position: inside;
}

button {
  cursor: pointer;
  border: none;
  background: none;
  font-family: inherit;
}

/* ============================================================
   滚动条美化
   ============================================================ */

::-webkit-scrollbar {
  width: 10px;
  height: 10px;
}

::-webkit-scrollbar-track {
  background: rgba(108, 92, 231, 0.05);
  border-radius: 10px;
}

::-webkit-scrollbar-thumb {
  background: linear-gradient(135deg, var(--primary-light), var(--secondary));
  border-radius: 10px;
  border: 2px solid transparent;
  background-clip: content-box;
}

::-webkit-scrollbar-thumb:hover {
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  background-clip: content-box;
}

/* ============================================================
   通用容器与布局
   ============================================================ */

main {
  max-width: 1400px;
  margin: 0 auto;
  padding: 0 var(--space-md);
  display: grid;
  grid-template-columns: 1fr 320px;
  gap: var(--space-lg);
  position: relative;
  z-index: 1;
}

@media (max-width: 1024px) {
  main {
    grid-template-columns: 1fr;
    padding: 0 var(--space-sm);
  }
}

.section {
  margin-bottom: var(--space-xl);
  scroll-margin-top: 100px;
}

.section > h2 {
  font-size: clamp(1.5rem, 3vw, 2.2rem);
  font-weight: 800;
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  margin-bottom: var(--space-md);
  position: relative;
  padding-bottom: var(--space-sm);
  letter-spacing: -0.5px;
}

.section > h2::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 0;
  width: 80px;
  height: 4px;
  background: linear-gradient(90deg, var(--primary), var(--secondary), transparent);
  border-radius: var(--radius-full);
}

/* ============================================================
   Header 与导航栏 - 毛玻璃效果
   ============================================================ */

header {
  position: sticky;
  top: 0;
  z-index: 1000;
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  background: var(--glass-bg);
  border-bottom: var(--glass-border);
  box-shadow: var(--shadow-sm);
}

.top-bar {
  max-width: 1400px;
  margin: 0 auto;
  padding: 0 var(--space-md);
}

.main-nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-sm) 0;
  gap: var(--space-md);
  flex-wrap: wrap;
}

.logo {
  flex-shrink: 0;
}

.logo h1 {
  font-size: 1.8rem;
  font-weight: 900;
  background: linear-gradient(135deg, var(--primary), var(--secondary), var(--accent));
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  letter-spacing: 1px;
  position: relative;
  cursor: pointer;
  transition: var(--transition);
}

.logo h1::after {
  content: "免费在线观看";
  position: absolute;
  bottom: -18px;
  left: 0;
  font-size: 0.55rem;
  font-weight: 500;
  letter-spacing: 2px;
  background: linear-gradient(135deg, var(--secondary), var(--accent));
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  white-space: nowrap;
  opacity: 0;
  transform: translateY(5px);
  transition: var(--transition);
}

.logo:hover h1::after {
  opacity: 1;
  transform: translateY(0);
}

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

.nav-links li a {
  display: inline-block;
  padding: 10px 18px;
  border-radius: var(--radius-full);
  font-weight: 600;
  font-size: 0.92rem;
  color: var(--text-primary);
  background: transparent;
  border: 1.5px solid transparent;
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}

.nav-links li a::before {
  content: "";
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(108, 92, 231, 0.08), transparent);
  transition: left 0.5s ease;
}

.nav-links li a:hover::before {
  left: 100%;
}

.nav-links li a:hover {
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  color: #fff;
  border-color: transparent;
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

@media (max-width: 768px) {
  .main-nav {
    flex-direction: column;
    align-items: flex-start;
    padding: var(--space-sm) 0;
  }

  .nav-links {
    width: 100%;
    justify-content: flex-start;
    gap: 6px;
    overflow-x: auto;
    padding-bottom: 4px;
    scrollbar-width: none;
  }

  .nav-links::-webkit-scrollbar {
    display: none;
  }

  .nav-links li a {
    padding: 8px 14px;
    font-size: 0.82rem;
    white-space: nowrap;
  }
}

/* ============================================================
   动漫卡片网格 - 热门动漫
   ============================================================ */

.anime-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(230px, 1fr));
  gap: var(--space-md);
}

.anime-card {
  background: var(--surface);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  border: var(--glass-border);
  border-radius: var(--radius-md);
  overflow: hidden;
  padding: var(--space-sm);
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
  position: relative;
  animation: fadeInUp 0.6s ease backwards;
  display: flex;
  flex-direction: column;
}

.anime-card:hover {
  transform: translateY(-8px) scale(1.02);
  box-shadow: var(--shadow-lg);
  background: var(--surface-hover);
  border-color: rgba(108, 92, 231, 0.3);
}

.anime-card img {
  border-radius: var(--radius-sm);
  aspect-ratio: 5/7;
  object-fit: cover;
  transition: var(--transition);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

.anime-card:hover img {
  transform: scale(1.04);
  box-shadow: 0 8px 24px rgba(108, 92, 231, 0.2);
}

.anime-card h3 {
  font-size: 1.15rem;
  font-weight: 700;
  margin: var(--space-sm) 0 var(--space-xs);
  color: var(--text-primary);
  transition: var(--transition);
  position: relative;
  display: inline-block;
}

.anime-card h3::after {
  content: "";
  position: absolute;
  bottom: -3px;
  left: 0;
  width: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--primary), var(--secondary));
  transition: width 0.4s ease;
}

.anime-card:hover h3::after {
  width: 100%;
}

.anime-card p {
  font-size: 0.85rem;
  color: var(--text-secondary);
  margin-bottom: 4px;
  line-height: 1.5;
  display: flex;
  align-items: center;
  gap: 6px;
}

.anime-card p::before {
  content: "✦";
  font-size: 0.7rem;
  color: var(--accent);
  opacity: 0.8;
}

.anime-card p:last-child {
  margin-top: auto;
  padding-top: var(--space-xs);
  font-weight: 700;
  color: var(--primary);
  border-top: 1px dashed var(--border);
}

@media (max-width: 480px) {
  .anime-grid {
    grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
    gap: var(--space-sm);
  }

  .anime-card {
    padding: 10px;
  }

  .anime-card h3 {
    font-size: 1rem;
  }

  .anime-card p {
    font-size: 0.75rem;
  }
}

/* ============================================================
   新番推荐网格
   ============================================================ */

.new-anime-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: var(--space-md);
}

.new-anime-card {
  background: var(--surface);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  border: var(--glass-border);
  border-radius: var(--radius-md);
  padding: var(--space-md);
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
  position: relative;
  overflow: hidden;
  animation: fadeInUp 0.6s ease backwards;
}

.new-anime-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--primary), var(--secondary), var(--accent));
  opacity: 0;
  transition: var(--transition);
}

.new-anime-card:hover::before {
  opacity: 1;
}

.new-anime-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
  background: var(--surface-hover);
}

.new-anime-card img {
  border-radius: var(--radius-sm);
  aspect-ratio: 5/7;
  object-fit: cover;
  margin-bottom: var(--space-sm);
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
}

.new-anime-card:hover img {
  transform: scale(1.02);
  box-shadow: var(--shadow-md);
}

.new-anime-card h3 {
  font-size: 1.3rem;
  font-weight: 700;
  margin-bottom: var(--space-xs);
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

.new-anime-card p {
  font-size: 0.9rem;
  color: var(--text-secondary);
  margin-bottom: 8px;
  line-height: 1.6;
}

.new-anime-card p:first-of-type {
  font-style: italic;
  padding: var(--space-xs);
  background: rgba(108, 92, 231, 0.06);
  border-radius: var(--radius-sm);
  border-left: 3px solid var(--primary);
  margin-bottom: var(--space-sm);
}

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

/* ============================================================
   详细内容区 - 神域传说深度解析
   ============================================================ */

.detail-content {
  background: var(--surface);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  border: var(--glass-border);
  border-radius: var(--radius-lg);
  padding: var(--space-lg);
  box-shadow: var(--shadow-md);
  line-height: 1.9;
  position: relative;
  overflow: hidden;
  animation: fadeInUp 0.8s ease backwards;
}

.detail-content::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 6px;
  background: linear-gradient(90deg, var(--primary), var(--secondary), var(--accent), var(--accent-warm));
}

.detail-content h3 {
  font-size: 1.4rem;
  font-weight: 700;
  margin: var(--space-md) 0 var(--space-sm);
  color: var(--primary);
  position: relative;
  padding-left: var(--space-sm);
}

.detail-content h3::before {
  content: "";
  position: absolute;
  left: 0;
  top: 50%;
  transform: translateY(-50%);
  width: 4px;
  height: 24px;
  background: linear-gradient(180deg, var(--primary), var(--secondary));
  border-radius: var(--radius-full);
}

.detail-content p {
  color: var(--text-secondary);
  margin-bottom: var(--space-sm);
  text-align: justify;
}

.detail-content p:last-of-type {
  background: linear-gradient(135deg, rgba(108, 92, 231, 0.08), rgba(253, 121, 168, 0.08));
  border-radius: var(--radius-sm);
  padding: var(--space-sm);
  font-weight: 500;
  color: var(--text-primary);
}

@media (max-width: 768px) {
  .detail-content {
    padding: var(--space-md);
  }
}

/* ============================================================
   角色介绍网格
   ============================================================ */

.character-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: var(--space-md);
}

.character-card {
  background: var(--surface);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  border: var(--glass-border);
  border-radius: var(--radius-md);
  padding: var(--space-md);
  text-align: center;
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
  position: relative;
  animation: fadeInUp 0.6s ease backwards;
}

.character-card:hover {
  transform: translateY(-8px) rotate(1deg);
  box-shadow: var(--shadow-lg);
  background: var(--surface-hover);
}

.character-card img {
  width: 120px;
  height: 120px;
  border-radius: 50%;
  object-fit: cover;
  margin: 0 auto var(--space-sm);
  border: 4px solid transparent;
  background: linear-gradient(135deg, var(--primary), var(--secondary)) border-box;
  -webkit-mask: linear-gradient(#fff 0 0) padding-box, linear-gradient(#fff 0 0);
  mask: linear-gradient(#fff 0 0) padding-box, linear-gradient(#fff 0 0);
  -webkit-mask-composite: xor;
  mask-composite: exclude;
  transition: var(--transition);
  box-shadow: 0 4px 16px rgba(108, 92, 231, 0.2);
}

.character-card:hover img {
  transform: scale(1.08) rotate(-3deg);
  box-shadow: 0 8px 24px rgba(108, 92, 231, 0.3);
}

.character-card h3 {
  font-size: 1.3rem;
  font-weight: 700;
  margin-bottom: var(--space-xs);
  color: var(--text-primary);
}

.character-card p {
  font-size: 0.85rem;
  color: var(--text-secondary);
  margin-bottom: 6px;
  line-height: 1.5;
}

.character-card p:first-of-type {
  font-weight: 600;
  color: var(--primary);
  background: rgba(108, 92, 231, 0.08);
  border-radius: var(--radius-full);
  padding: 4px 12px;
  display: inline-block;
  margin-bottom: var(--space-xs);
}

@media (max-width: 480px) {
  .character-grid {
    grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
    gap: var(--space-sm);
  }

  .character-card img {
    width: 90px;
    height: 90px;
  }
}

/* ============================================================
   平台介绍
   ============================================================ */

.platform-content {
  background: var(--surface);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  border: var(--glass-border);
  border-radius: var(--radius-lg);
  padding: var(--space-lg);
  box-shadow: var(--shadow-md);
  position: relative;
  overflow: hidden;
  animation: fadeInUp 0.8s ease backwards;
}

.platform-content::after {
  content: "51漫画";
  position: absolute;
  right: -30px;
  bottom: -30px;
  font-size: 8rem;
  font-weight: 900;
  color: rgba(108, 92, 231, 0.04);
  pointer-events: none;
  user-select: none;
  line-height: 1;
}

.platform-content h3 {
  font-size: 1.3rem;
  font-weight: 700;
  margin: var(--space-md) 0 var(--space-sm);
  color: var(--primary);
  display: flex;
  align-items: center;
  gap: 10px;
}

.platform-content h3::before {
  content: "◆";
  font-size: 0.8rem;
  color: var(--secondary);
}

.platform-content p {
  color: var(--text-secondary);
  margin-bottom: var(--space-sm);
  line-height: 1.8;
  position: relative;
  z-index: 1;
}

@media (max-width: 768px) {
  .platform-content {
    padding: var(--space-md);
  }
}

/* ============================================================
   APP下载区域
   ============================================================ */

.app-download {
  background: linear-gradient(135deg, rgba(108, 92, 231, 0.08), rgba(253, 121, 168, 0.08));
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  border: 2px dashed var(--primary-light);
  border-radius: var(--radius-lg);
  padding: var(--space-lg);
  text-align: center;
  position: relative;
  overflow: hidden;
  animation: fadeInUp 0.8s ease backwards;
}

.app-download::before {
  content: "";
  position: absolute;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background: radial-gradient(circle, rgba(108, 92, 231, 0.05) 0%, transparent 60%);
  animation: rotateBlob 30s linear infinite;
}

@keyframes rotateBlob {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }
}

.app-download h3 {
  font-size: 1.8rem;
  font-weight: 800;
  margin-bottom: var(--space-sm);
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

.app-download p {
  color: var(--text-secondary);
  max-width: 700px;
  margin: 0 auto var(--space-sm);
  line-height: 1.8;
  position: relative;
  z-index: 1;
}

.download-buttons {
  display: flex;
  justify-content: center;
  gap: var(--space-sm);
  flex-wrap: wrap;
  margin-top: var(--space-md);
  position: relative;
  z-index: 1;
}

.download-buttons button {
  padding: 14px 32px;
  border-radius: var(--radius-full);
  font-size: 1rem;
  font-weight: 700;
  transition: var(--transition);
  border: 2px solid transparent;
  position: relative;
  overflow: hidden;
}

.download-buttons button:nth-child(1) {
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  color: #fff;
  box-shadow: var(--shadow-md);
}

.download-buttons button:nth-child(1):hover {
  transform: translateY(-4px) scale(1.05);
  box-shadow: var(--shadow-lg);
  filter: brightness(1.1);
}

.download-buttons button:nth-child(2) {
  background: transparent;
  border-color: var(--primary);
  color: var(--primary);
}

.download-buttons button:nth-child(2):hover {
  background: var(--primary);
  color: #fff;
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
}

.download-buttons button:nth-child(3) {
  background: transparent;
  border-color: var(--secondary);
  color: var(--secondary);
}

.download-buttons button:nth-child(3):hover {
  background: var(--secondary);
  color: #fff;
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
}

@media (max-width: 480px) {
  .app-download {
    padding: var(--space-md);
  }

  .download-buttons button {
    padding: 12px 24px;
    font-size: 0.9rem;
  }
}

/* ============================================================
   用户评论列表
   ============================================================ */

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

.review-item {
  background: var(--surface);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  border: var(--glass-border);
  border-radius: var(--radius-md);
  padding: var(--space-md);
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
  position: relative;
  animation: fadeInUp 0.5s ease backwards;
}

.review-item:hover {
  transform: translateX(6px);
  box-shadow: var(--shadow-md);
  background: var(--surface-hover);
  border-color: rgba(253, 121, 168, 0.3);
}

.review-item p:first-child {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: var(--space-xs);
  padding-bottom: var(--space-xs);
  border-bottom: 1px dashed var(--border);
}

.review-item strong {
  color: var(--primary);
  font-size: 0.95rem;
}

.review-item time {
  font-size: 0.75rem;
  color: var(--text-muted);
  background: rgba(108, 92, 231, 0.08);
  padding: 3px 10px;
  border-radius: var(--radius-full);
}

.review-item p:last-child {
  color: var(--text-secondary);
  font-size: 0.9rem;
  line-height: 1.6;
}

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

/* ============================================================
   侧边栏 - 毛玻璃组件
   ============================================================ */

.sidebar {
  position: sticky;
  top: 100px;
  align-self: start;
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
  max-height: calc(100vh - 120px);
  overflow-y: auto;
  padding-right: 4px;
  scrollbar-width: thin;
}

.sidebar::-webkit-scrollbar {
  width: 4px;
}

.sidebar::-webkit-scrollbar-thumb {
  background: var(--primary-light);
  border-radius: 4px;
}

@media (max-width: 1024px) {
  .sidebar {
    position: static;
    max-height: none;
    overflow: visible;
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
    gap: var(--space-sm);
    margin-top: var(--space-lg);
  }
}

.widget {
  background: var(--surface);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  border: var(--glass-border);
  border-radius: var(--radius-md);
  padding: var(--space-md);
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
  animation: fadeInUp 0.5s ease backwards;
}

.widget:hover {
  box-shadow: var(--shadow-md);
  background: var(--surface-hover);
}

.widget h3 {
  font-size: 1.05rem;
  font-weight: 700;
  margin-bottom: var(--space-sm);
  color: var(--text-primary);
  position: relative;
  padding-bottom: var(--space-xs);
}

.widget h3::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 0;
  width: 40px;
  height: 3px;
  background: linear-gradient(90deg, var(--primary), var(--secondary));
  border-radius: var(--radius-full);
}

.widget ol,
.widget ul {
  list-style: none;
}

.widget ol li,
.widget ul li {
  padding: 8px 0;
  border-bottom: 1px dashed var(--border);
  font-size: 0.9rem;
  color: var(--text-secondary);
  display: flex;
  align-items: center;
  gap: 8px;
  transition: var(--transition);
  cursor: default;
}

.widget ol li:last-child,
.widget ul li:last-child {
  border-bottom: none;
}

.widget ol li:hover,
.widget ul li:hover {
  color: var(--primary);
  padding-left: 8px;
  background: rgba(108, 92, 231, 0.04);
  border-radius: var(--radius-sm);
}

.widget ol {
  counter-reset: ranking;
}

.widget ol li {
  counter-increment: ranking;
}

.widget ol li::before {
  content: counter(ranking);
  min-width: 24px;
  height: 24px;
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  color: #fff;
  border-radius: 50%;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 0.75rem;
  font-weight: 700;
  flex-shrink: 0;
}

.widget ol li:nth-child(1)::before {
  background: linear-gradient(135deg, #f39c12, #e74c3c);
}

.widget ol li:nth-child(2)::before {
  background: linear-gradient(135deg, #bdc3c7, #95a5a6);
}

.widget ol li:nth-child(3)::before {
  background: linear-gradient(135deg, #d35400, #e67e22);
}

.widget ul li::before {
  content: "▸";
  color: var(--secondary);
  font-size: 1rem;
  flex-shrink: 0;
}

.widget ul li:hover::before {
  transform: translateX(3px);
  transition: var(--transition);
}

/* ============================================================
   Footer 页脚
   ============================================================ */

footer {
  background: rgba(20, 22, 45, 0.95);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  color: #b8b8d0;
  margin-top: var(--space-xl);
  padding: var(--space-lg) var(--space-md) var(--space-md);
  position: relative;
  z-index: 1;
}

footer::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--primary), var(--secondary), var(--accent), var(--accent-warm));
}

.footer-links {
  max-width: 1400px;
  margin: 0 auto var(--space-lg);
  display: flex;
  flex-direction: column;
  align-items: center;
}

.footer-links h3 {
  font-size: 1.2rem;
  margin-bottom: var(--space-sm);
  color: #fff;
  text-align: center;
}

.footer-links ul {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: var(--space-xs);
}

.footer-links ul li a {
  display: inline-block;
  padding: 8px 16px;
  background: rgba(255, 255, 255, 0.06);
  border-radius: var(--radius-full);
  color: #b8b8d0;
  font-size: 0.85rem;
  border: 1px solid rgba(255, 255, 255, 0.08);
  transition: var(--transition);
}

.footer-links ul li a:hover {
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  color: #fff;
  transform: translateY(-3px);
  border-color: transparent;
  box-shadow: 0 4px 16px rgba(108, 92, 231, 0.3);
}

.footer-info {
  max-width: 1400px;
  margin: 0 auto;
  text-align: center;
  padding-top: var(--space-md);
  border-top: 1px solid rgba(255, 255, 255, 0.08);
}

.footer-info p {
  font-size: 0.85rem;
  line-height: 1.8;
  margin-bottom: 6px;
  color: #8a8aa5;
}

.footer-info p:last-child {
  display: flex;
  justify-content: center;
  gap: var(--space-sm);
  flex-wrap: wrap;
  margin-top: var(--space-sm);
}

.footer-info p:last-child::before {
  content: "";
  width: 0;
}

@media (max-width: 768px) {
  .footer-info p:last-child {
    flex-direction: column;
    gap: 4px;
  }
}

/* ============================================================
   动画定义
   ============================================================ */

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

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

@keyframes scaleIn {
  from {
    opacity: 0;
    transform: scale(0.9);
  }
  to {
    opacity: 1;
    transform: scale(1);
  }
}

/* 滚动动画 - 使用 IntersectionObserver 配合 CSS 类 */
.animate-on-scroll {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.8s ease, transform 0.8s ease;
}

.animate-on-scroll.visible {
  opacity: 1;
  transform: translateY(0);
}

/* 为不同区块添加动画延迟 */
.anime-card:nth-child(1) { animation-delay: 0.05s; }
.anime-card:nth-child(2) { animation-delay: 0.1s; }
.anime-card:nth-child(3) { animation-delay: 0.15s; }
.anime-card:nth-child(4) { animation-delay: 0.2s; }
.anime-card:nth-child(5) { animation-delay: 0.25s; }
.anime-card:nth-child(6) { animation-delay: 0.3s; }
.anime-card:nth-child(7) { animation-delay: 0.35s; }
.anime-card:nth-child(8) { animation-delay: 0.4s; }
.anime-card:nth-child(9) { animation-delay: 0.45s; }
.anime-card:nth-child(10) { animation-delay: 0.5s; }
.anime-card:nth-child(11) { animation-delay: 0.55s; }
.anime-card:nth-child(12) { animation-delay: 0.6s; }
.anime-card:nth-child(13) { animation-delay: 0.65s; }
.anime-card:nth-child(14) { animation-delay: 0.7s; }
.anime-card:nth-child(15) { animation-delay: 0.75s; }
.anime-card:nth-child(16) { animation-delay: 0.8s; }

.new-anime-card:nth-child(1) { animation-delay: 0.1s; }
.new-anime-card:nth-child(2) { animation-delay: 0.2s; }
.new-anime-card:nth-child(3) { animation-delay: 0.3s; }
.new-anime-card:nth-child(4) { animation-delay: 0.4s; }
.new-anime-card:nth-child(5) { animation-delay: 0.5s; }
.new-anime-card:nth-child(6) { animation-delay: 0.6s; }

.character-card:nth-child(1) { animation-delay: 0.05s; }
.character-card:nth-child(2) { animation-delay: 0.1s; }
.character-card:nth-child(3) { animation-delay: 0.15s; }
.character-card:nth-child(4) { animation-delay: 0.2s; }
.character-card:nth-child(5) { animation-delay: 0.25s; }
.character-card:nth-child(6) { animation-delay: 0.3s; }
.character-card:nth-child(7) { animation-delay: 0.35s; }
.character-card:nth-child(8) { animation-delay: 0.4s; }

.review-item:nth-child(1) { animation-delay: 0.02s; }
.review-item:nth-child(2) { animation-delay: 0.04s; }
.review-item:nth-child(3) { animation-delay: 0.06s; }
.review-item:nth-child(4) { animation-delay: 0.08s; }
.review-item:nth-child(5) { animation-delay: 0.1s; }
.review-item:nth-child(6) { animation-delay: 0.12s; }
.review-item:nth-child(7) { animation-delay: 0.14s; }
.review-item:nth-child(8) { animation-delay: 0.16s; }
.review-item:nth-child(9) { animation-delay: 0.18s; }
.review-item:nth-child(10) { animation-delay: 0.2s; }
.review-item:nth-child(11) { animation-delay: 0.22s; }
.review-item:nth-child(12) { animation-delay: 0.24s; }
.review-item:nth-child(13) { animation-delay: 0.26s; }
.review-item:nth-child(14) { animation-delay: 0.28s; }
.review-item:nth-child(15) { animation-delay: 0.3s; }
.review-item:nth-child(16) { animation-delay: 0.32s; }

/* ============================================================
   暗色模式支持
   ============================================================ */

/* 通过媒体查询自动适配系统暗色模式 */
@media (prefers-color-scheme: dark) {
  :root {
    --bg: var(--dark-bg);
    --bg-gradient: var(--dark-bg-gradient);
    --surface: var(--dark-surface);
    --surface-solid: var(--dark-surface-solid);
    --surface-hover: rgba(40, 42, 80, 0.85);
    --text-primary: var(--dark-text-primary);
    --text-secondary: var(--dark-text-secondary);
    --text-muted: var(--dark-text-muted);
    --border: var(--dark-border);
    --shadow-sm: var(--dark-shadow-sm);
    --shadow-md: var(--dark-shadow-md);
    --glass-bg: var(--dark-glass-bg);
    --glass-border: var(--dark-glass-border);
  }

  body {
    color: var(--dark-text-primary);
  }

  .anime-card p,
  .new-anime-card p,
  .character-card p,
  .platform-content p,
  .app-download p,
  .review-item p:last-child,
  .widget ol li,
  .widget ul li {
    color: var(--dark-text-secondary);
  }

  .anime-card h3,
  .character-card h3,
  .widget h3 {
    color: var(--dark-text-primary);
  }

  .detail-content p {
    color: var(--dark-text-secondary);
  }

  .detail-content p:last-of-type {
    color: var(--dark-text-primary);
    background: rgba(108, 92, 231, 0.15);
  }

  .new-anime-card p:first-of-type {
    background: rgba(108, 92, 231, 0.15);
    color: var(--dark-text-primary);
  }

  .footer-links ul li a {
    background: rgba(255, 255, 255, 0.05);
    border-color: rgba(255, 255, 255, 0.1);
    color: var(--dark-text-secondary);
  }
}

/* 手动暗色模式切换 (通过添加 [data-theme="dark"] 属性) */
[data-theme="dark"] {
  --bg: var(--dark-bg);
  --bg-gradient: var(--dark-bg-gradient);
  --surface: var(--dark-surface);
  --surface-solid: var(--dark-surface-solid);
  --surface-hover: rgba(40, 42, 80, 0.85);
  --text-primary: var(--dark-text-primary);
  --text-secondary: var(--dark-text-secondary);
  --text-muted: var(--dark-text-muted);
  --border: var(--dark-border);
  --shadow-sm: var(--dark-shadow-sm);
  --shadow-md: var(--dark-shadow-md);
  --glass-bg: var(--dark-glass-bg);
  --glass-border: var(--dark-glass-border);
}

[data-theme="dark"] body {
  color: var(--dark-text-primary);
}

[data-theme="dark"] .anime-card p,
[data-theme="dark"] .new-anime-card p,
[data-theme="dark"] .character-card p,
[data-theme="dark"] .platform-content p,
[data-theme="dark"] .app-download p,
[data-theme="dark"] .review-item p:last-child,
[data-theme="dark"] .widget ol li,
[data-theme="dark"] .widget ul li {
  color: var(--dark-text-secondary);
}

[data-theme="dark"] .anime-card h3,
[data-theme="dark"] .character-card h3,
[data-theme="dark"] .widget h3 {
  color: var(--dark-text-primary);
}

[data-theme="dark"] .detail-content p {
  color: var(--dark-text-secondary);
}

[data-theme="dark"] .detail-content p:last-of-type {
  color: var(--dark-text-primary);
  background: rgba(108, 92, 231, 0.15);
}

[data-theme="dark"] .new-anime-card p:first-of-type {
  background: rgba(108, 92, 231, 0.15);
  color: var(--dark-text-primary);
}

/* ============================================================
   响应式优化 - 小屏适配
   ============================================================ */

@media (max-width: 640px) {
  :root {
    --space-lg: 24px;
    --space-xl: 40px;
  }

  .section > h2 {
    font-size: 1.4rem;
  }

  .logo h1 {
    font-size: 1.5rem;
  }

  .anime-grid,
  .new-anime-grid,
  .character-grid {
    grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
    gap: 12px;
  }

  .anime-card,
  .new-anime-card,
  .character-card {
    padding: 12px;
  }

  .anime-card h3,
  .new-anime-card h3 {
    font-size: 0.95rem;
  }

  .anime-card p,
  .new-anime-card p {
    font-size: 0.75rem;
  }

  .character-card img {
    width: 80px;
    height: 80px;
  }

  .detail-content,
  .platform-content,
  .app-download {
    padding: var(--space-md);
  }

  .download-buttons {
    flex-direction: column;
    align-items: stretch;
  }

  .download-buttons button {
    width: 100%;
  }

  .review-item p:first-child {
    flex-direction: column;
    align-items: flex-start;
    gap: 6px;
  }
}

/* ============================================================
   打印样式
   ============================================================ */

@media print {
  header,
  footer,
  .sidebar,
  .download-buttons {
    display: none !important;
  }

  body {
    background: #fff;
    color: #000;
  }

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

  .anime-card,
  .new-anime-card,
  .character-card,
  .review-item,
  .widget,
  .detail-content,
  .platform-content,
  .app-download {
    background: #fff;
    border: 1px solid #ddd;
    box-shadow: none;
    break-inside: avoid;
  }

  .section > h2 {
    -webkit-text-fill-color: #333;
    background: none;
    color: #333;
  }
}

/* ============================================================
   无障碍与可访问性
   ============================================================ */

:focus-visible {
  outline: 3px solid var(--primary);
  outline-offset: 2px;
  border-radius: 4px;
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}

/* ============================================================
   工具类
   ============================================================ */

.text-gradient {
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

.glass-effect {
  background: var(--glass-bg);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  border: var(--glass-border);
}

.hover-lift {
  transition: var(--transition);
}

.hover-lift:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
}

/* 结束 */
/* 51漫画 - 完整样式表 */
/* 版本: 1.0.0 */
/* 作者: UI设计团队 */
/* 说明: 包含全部组件样式、动画、响应式与暗色模式 */