```css
/* =========================================
   免费观看 · ouxtool.com.cn
   影视聚合平台 - 全站样式表
   风格：现代影视 / 渐变Banner / 毛玻璃
   ========================================= */

/* ---------- 设计令牌 & 颜色变量 ---------- */
:root {
  /* 主色板 - 影视蓝紫渐变 */
  --brand-h: 220;
  --brand-s: 80%;
  --brand-l: 45%;
  --brand-color: hsl(var(--brand-h), var(--brand-s), var(--brand-l));
  --brand-dark: hsl(var(--brand-h), calc(var(--brand-s) - 15%), calc(var(--brand-l) - 12%));
  --brand-light: hsl(var(--brand-h), calc(var(--brand-s) + 10%), calc(var(--brand-l) + 18%));
  --accent-1: #7c3aed;   /* 紫罗兰 */
  --accent-2: #06b6d4;   /* 青蓝 */
  --accent-3: #f59e0b;   /* 暖橙 */

  /* 背景 */
  --bg-page: #f4f6fb;
  --bg-card: #ffffff;
  --bg-header: rgba(255, 255, 255, 0.75);
  --bg-footer: #111827;
  --bg-accent: #eef2f8;
  --bg-glass: rgba(255, 255, 255, 0.55);
  --bg-hero-1: #e0e7ff;
  --bg-hero-2: #c7d2fe;
  --bg-hero-3: #ddd6fe;

  /* 文本 */
  --text-primary: #1f2937;
  --text-secondary: #3b4a5a;
  --text-heading: #0f172a;
  --text-link: #1d4ed8;
  --text-muted: #5b6b7c;
  --text-invert: #f1f5f9;
  --text-invert-heading: #ffffff;

  /* 边框/阴影 */
  --border-light: #d7dee9;
  --border-glass: rgba(255, 255, 255, 0.4);
  --shadow-card: 0 8px 24px rgba(2, 12, 27, 0.06);
  --shadow-hover: 0 16px 40px rgba(2, 12, 27, 0.12);
  --shadow-glass: 0 4px 30px rgba(0, 0, 0, 0.08);

  /* 布局 */
  --header-height: 72px;
  --radius-lg: 20px;
  --radius-md: 14px;
  --radius-sm: 8px;
  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* 暗色模式 */
[data-theme="dark"] {
  --brand-h: 217;
  --brand-s: 91%;
  --brand-l: 60%;
  --brand-color: hsl(var(--brand-h), var(--brand-s), var(--brand-l));
  --brand-dark: hsl(var(--brand-h), calc(var(--brand-s) - 10%), calc(var(--brand-l) - 15%));
  --brand-light: hsl(var(--brand-h), calc(var(--brand-s) + 5%), calc(var(--brand-l) + 10%));

  --bg-page: #0b1120;
  --bg-card: #151e2e;
  --bg-header: rgba(15, 23, 42, 0.75);
  --bg-footer: #060a12;
  --bg-accent: #1e293b;
  --bg-glass: rgba(15, 23, 42, 0.55);
  --bg-hero-1: #1e1b4b;
  --bg-hero-2: #172554;
  --bg-hero-3: #0c4a6e;

  --text-primary: #e2e8f0;
  --text-secondary: #cbd5e1;
  --text-heading: #f8fafc;
  --text-link: #93c5fd;
  --text-muted: #94a3b8;
  --text-invert: #0b1120;
  --text-invert-heading: #ffffff;

  --border-light: #293548;
  --border-glass: rgba(255, 255, 255, 0.08);
  --shadow-card: 0 8px 24px rgba(0, 0, 0, 0.4);
  --shadow-hover: 0 16px 40px rgba(0, 0, 0, 0.6);
  --shadow-glass: 0 4px 30px rgba(0, 0, 0, 0.5);
}

/* ---------- 基础重置 ---------- */
*,
*::before,
*::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

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

body {
  font-family: system-ui, -apple-system, 'Segoe UI', Roboto, 'PingFang SC',
    'Microsoft YaHei', 'Helvetica Neue', sans-serif;
  background: var(--bg-page);
  color: var(--text-primary);
  line-height: 1.75;
  font-size: 1rem;
  transition: background 0.4s ease, color 0.3s ease;
  overflow-x: hidden;
}

/* 滚动条 */
::-webkit-scrollbar {
  width: 8px;
  height: 8px;
}
::-webkit-scrollbar-track {
  background: var(--bg-accent);
}
::-webkit-scrollbar-thumb {
  background: var(--brand-color);
  border-radius: 8px;
}
::-webkit-scrollbar-thumb:hover {
  background: var(--brand-dark);
}

/* ---------- 排版 ---------- */
h1, h2, h3, h4, h5, h6 {
  color: var(--text-heading);
  font-weight: 800;
  line-height: 1.3;
  margin: 0.8em 0 0.4em;
  letter-spacing: -0.02em;
}

h1 {
  font-size: clamp(2rem, 5vw, 3rem);
  background: linear-gradient(135deg, var(--brand-color), var(--accent-1));
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  margin-bottom: 0.3em;
}

h2 {
  font-size: clamp(1.5rem, 3vw, 2rem);
  position: relative;
  padding-left: 0.8rem;
  margin: 1.5em 0 0.8em;
}

h2::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0.15em;
  width: 5px;
  height: 0.9em;
  background: linear-gradient(180deg, var(--brand-color), var(--accent-1));
  border-radius: 4px;
}

h3 {
  font-size: 1.35rem;
  margin-top: 1.2em;
}

h4 {
  font-size: 1.1rem;
  color: var(--text-secondary);
}

p {
  margin: 0.8rem 0;
}

a {
  color: var(--text-link);
  text-decoration: none;
  font-weight: 500;
  transition: var(--transition);
}

a:hover {
  color: var(--brand-color);
  text-decoration: underline;
}

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

/* ---------- 容器 ---------- */
.container {
  max-width: 1240px;
  margin: 0 auto;
  padding: 0 24px;
}

/* ---------- 玻璃拟态工具类 ---------- */
.glass {
  background: var(--bg-glass);
  backdrop-filter: blur(16px) saturate(180%);
  -webkit-backdrop-filter: blur(16px) saturate(180%);
  border: 1px solid var(--border-glass);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-glass);
}

/* ---------- 头部 ---------- */
header {
  background: var(--bg-header);
  backdrop-filter: blur(18px) saturate(180%);
  -webkit-backdrop-filter: blur(18px) saturate(180%);
  position: sticky;
  top: 0;
  z-index: 1000;
  border-bottom: 1px solid var(--border-light);
  transition: var(--transition);
}

.header-flex {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: var(--header-height);
  gap: 1rem;
}

.logo {
  font-size: 1.7rem;
  font-weight: 900;
  letter-spacing: -0.03em;
  background: linear-gradient(135deg, var(--brand-color), var(--accent-1));
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  white-space: nowrap;
  flex-shrink: 0;
}

.logo span {
  background: linear-gradient(135deg, var(--accent-2), var(--accent-3));
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

.nav-links {
  display: flex;
  gap: 0.4rem;
  align-items: center;
  flex-wrap: wrap;
}

.nav-links a {
  color: var(--text-secondary);
  font-weight: 600;
  padding: 0.5rem 0.9rem;
  border-radius: 40px;
  transition: var(--transition);
  position: relative;
}

.nav-links a:hover {
  color: var(--brand-color);
  background: var(--bg-accent);
  text-decoration: none;
}

.nav-links a::after {
  content: '';
  position: absolute;
  bottom: 0.2rem;
  left: 50%;
  transform: translateX(-50%);
  width: 0;
  height: 2px;
  background: var(--brand-color);
  transition: width 0.3s;
}

.nav-links a:hover::after {
  width: 60%;
}

/* 搜索框 */
.search-box {
  display: flex;
  align-items: center;
  background: var(--bg-accent);
  border-radius: 50px;
  padding: 0.35rem 0.35rem 0.35rem 1.2rem;
  border: 1px solid var(--border-light);
  backdrop-filter: blur(8px);
  transition: var(--transition);
  flex-shrink: 0;
}

.search-box:focus-within {
  border-color: var(--brand-color);
  box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.15);
}

.search-box input {
  border: none;
  background: transparent;
  padding: 0.4rem 0.6rem;
  font-size: 0.95rem;
  width: 170px;
  color: var(--text-primary);
  outline: none;
}

.search-box input::placeholder {
  color: var(--text-muted);
  opacity: 0.75;
}

.search-box button {
  background: linear-gradient(135deg, var(--brand-color), var(--brand-dark));
  border: none;
  color: #fff;
  padding: 0.4rem 1.1rem;
  border-radius: 50px;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
  font-size: 0.9rem;
}

.search-box button:hover {
  transform: scale(1.05);
  box-shadow: 0 4px 12px rgba(59, 130, 246, 0.35);
}

/* 图标按钮 */
.theme-toggle,
.menu-toggle {
  background: var(--bg-accent);
  border: 1px solid var(--border-light);
  cursor: pointer;
  font-size: 1.2rem;
  color: var(--text-primary);
  width: 42px;
  height: 42px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: var(--transition);
  flex-shrink: 0;
}

.theme-toggle:hover,
.menu-toggle:hover {
  background: var(--brand-color);
  color: #fff;
  transform: rotate(10deg) scale(1.05);
}

.menu-toggle {
  display: none;
}

/* 移动端导航 */
.mobile-nav {
  display: none;
  flex-direction: column;
  padding: 0.5rem 1rem 1rem;
  border-top: 1px solid var(--border-light);
  background: var(--bg-glass);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
}

.mobile-nav a {
  padding: 0.8rem 1rem;
  border-bottom: 1px solid var(--border-light);
  color: var(--text-primary);
  font-weight: 600;
  border-radius: 8px;
}

.mobile-nav a:last-child {
  border-bottom: none;
}

.mobile-nav a:hover {
  background: var(--bg-accent);
  text-decoration: none;
}

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

/* ---------- 面包屑 ---------- */
.breadcrumb {
  padding: 1.2rem 0;
  color: var(--text-muted);
  font-size: 0.9rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  flex-wrap: wrap;
}

.breadcrumb a {
  color: var(--text-link);
  font-weight: 500;
}

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

/* ---------- Hero 区域 ---------- */
.hero {
  background: linear-gradient(135deg, var(--bg-hero-1), var(--bg-hero-2), var(--bg-hero-3));
  border-radius: 28px;
  padding: clamp(2rem, 5vw, 4rem);
  margin: 1.5rem 0 2.5rem;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 2rem;
  position: relative;
  overflow: hidden;
  border: 1px solid var(--border-glass);
  box-shadow: var(--shadow-card);
}

/* 装饰光斑 */
.hero::before {
  content: '';
  position: absolute;
  width: 300px;
  height: 300px;
  background: radial-gradient(circle, rgba(255, 255, 255, 0.3), transparent 70%);
  top: -100px;
  right: -100px;
  border-radius: 50%;
  pointer-events: none;
}

.hero::after {
  content: '';
  position: absolute;
  width: 200px;
  height: 200px;
  background: radial-gradient(circle, rgba(124, 58, 237, 0.2), transparent 70%);
  bottom: -80px;
  left: 30%;
  border-radius: 50%;
  pointer-events: none;
}

.hero h1 {
  font-size: clamp(1.8rem, 4.5vw, 2.8rem);
  margin-bottom: 0.5rem;
  line-height: 1.2;
}

.hero p {
  font-size: 1.15rem;
  color: var(--text-secondary);
  max-width: 600px;
  margin: 1rem 0;
}

.hero-badge {
  display: inline-block;
  background: linear-gradient(135deg, var(--brand-color), var(--brand-dark));
  color: #fff;
  padding: 0.4rem 1.4rem;
  border-radius: 50px;
  font-weight: 600;
  font-size: 0.95rem;
  box-shadow: 0 4px 15px rgba(59, 130, 246, 0.3);
  margin-top: 0.5rem;
}

/* ---------- 按钮 ---------- */
.btn {
  display: inline-block;
  background: linear-gradient(135deg, var(--brand-color), var(--brand-dark));
  color: #fff !important;
  padding: 0.65rem 1.8rem;
  border-radius: 50px;
  font-weight: 600;
  transition: var(--transition);
  border: none;
  cursor: pointer;
  box-shadow: 0 4px 15px rgba(59, 130, 246, 0.25);
  font-size: 0.95rem;
}

.btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 25px rgba(59, 130, 246, 0.4);
  text-decoration: none;
}

.btn-outline {
  background: transparent;
  border: 2px solid var(--brand-color);
  color: var(--brand-color) !important;
  box-shadow: none;
}

.btn-outline:hover {
  background: var(--brand-color);
  color: #fff !important;
}

/* ---------- 卡片网格 ---------- */
.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(270px, 1fr));
  gap: 1.8rem;
  margin: 2rem 0;
}

.card {
  background: var(--bg-card);
  padding: 1.8rem;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-card);
  border: 1px solid var(--border-light);
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}

.card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 4px;
  background: linear-gradient(90deg, var(--brand-color), var(--accent-1), var(--accent-2));
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.4s ease;
}

.card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-hover);
  border-color: var(--brand-color);
}

.card:hover::before {
  transform: scaleX(1);
}

.card h3 {
  margin-top: 0.5rem;
  font-size: 1.25rem;
}

.card p {
  color: var(--text-secondary);
  font-size: 0.95rem;
}

.card-icon {
  font-size: 2.5rem;
  margin-bottom: 0.8rem;
  display: block;
}

/* ---------- 文章列表 ---------- */
.article-list {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.article-item {
  background: var(--bg-card);
  padding: 1.4rem 1.8rem;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-light);
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}

.article-item::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0;
  height: 100%;
  width: 4px;
  background: linear-gradient(180deg, var(--brand-color), var(--accent-1));
  opacity: 0;
  transition: opacity 0.3s;
}

.article-item:hover {
  transform: translateX(6px);
  box-shadow: var(--shadow-card);
  border-color: var(--brand-color);
}

.article-item:hover::before {
  opacity: 1;
}

.article-item h4 {
  margin: 0 0 0.3rem;
  font-size: 1.1rem;
}

.article-item a {
  font-weight: 600;
  font-size: 0.95rem;
}

.article-meta {
  font-size: 0.85rem;
  color: var(--text-muted);
  margin-bottom: 0.5rem;
  display: flex;
  align-items: center;
  gap: 0.8rem;
}

/* ---------- FAQ ---------- */
.faq-item {
  background: var(--bg-card);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-md);
  margin-bottom: 0.8rem;
  overflow: hidden;
  transition: var(--transition);
}

.faq-item:hover {
  border-color: var(--brand-color);
  box-shadow: var(--shadow-card);
}

.faq-question {
  font-weight: 600;
  cursor: pointer;
  padding: 1.1rem 1.5rem;
  color: var(--text-heading);
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  transition: var(--transition);
  font-size: 1rem;
}

.faq-question:hover {
  background: var(--bg-accent);
}

.faq-question span {
  font-size: 1.3rem;
  transition: transform 0.3s;
  flex-shrink: 0;
  color: var(--brand-color);
}

.faq-question.active span {
  transform: rotate(45deg);
}

.faq-answer {
  padding: 0 1.5rem 1.2rem;
  color: var(--text-secondary);
  border-top: 1px solid var(--border-light);
  padding-top: 1rem;
  display: none;
  line-height: 1.7;
}

/* ---------- 表格 ---------- */
table {
  width: 100%;
  border-collapse: collapse;
  margin: 1.5rem 0;
  background: var(--bg-card);
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-card);
}

th, td {
  border: 1px solid var(--border-light);
  padding: 0.9rem 1.2rem;
  text-align: left;
}

th {
  background: var(--bg-accent);
  font-weight: 700;
  color: var(--text-heading);
}

tr:hover td {
  background: var(--bg-accent);
}

/* ---------- 列表样式 ---------- */
ol, ul {
  padding-left: 1.8rem;
  margin: 0.8rem 0;
}

li {
  margin: 0.4rem 0;
  color: var(--text-primary);
}

strong {
  color: var(--text-heading);
  font-weight: 700;
}

/* ---------- 内容区块 ---------- */
section {
  margin: 3rem 0;
}

section h2 {
  margin-top: 0;
}

/* ---------- 侧边栏/信息卡片 ---------- */
.info-aside {
  background: var(--bg-glass);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  padding: 1.8rem;
  border-radius: var(--radius-lg);
  border: 1px solid var(--border-light);
  box-shadow: var(--shadow-glass);
}

.info-aside h4 {
  margin-top: 0;
  color: var(--text-heading);
}

.info-aside p {
  font-size: 0.95rem;
  padding: 0.5rem 0;
  border-bottom: 1px dashed var(--border-light);
}

.info-aside p:last-child {
  border-bottom: none;
}

/* ---------- 页脚 ---------- */
footer {
  background: var(--bg-footer);
  color: var(--text-invert);
  padding: 3.5rem 0 1.5rem;
  margin-top: 4rem;
  position: relative;
}

footer a {
  color: #a5b4cb;
  transition: var(--transition);
  font-weight: 400;
}

footer a:hover {
  color: #fff;
  text-decoration: none;
  padding-left: 4px;
}

footer h4,
footer h5 {
  color: var(--text-invert-heading);
  margin-bottom: 1rem;
  font-size: 1.1rem;
  position: relative;
  padding-bottom: 0.5rem;
}

footer h4::after,
footer h5::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 40px;
  height: 2px;
  background: linear-gradient(90deg, var(--brand-color), var(--accent-1));
}

.footer-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 2.5rem;
  margin-bottom: 2rem;
}

.footer-grid a {
  display: block;
  padding: 0.25rem 0;
}

.footer-bottom {
  border-top: 1px solid rgba(148, 163, 184, 0.3);
  margin-top: 2rem;
  padding-top: 1.5rem;
  font-size: 0.9rem;
  color: #94a3b8;
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 0.8rem;
}

/* ---------- 返回顶部 ---------- */
#backTop {
  position: fixed;
  bottom: 2.5rem;
  right: 2.5rem;
  background: linear-gradient(135deg, var(--brand-color), var(--brand-dark));
  color: #fff;
  border: none;
  border-radius: 50%;
  width: 50px;
  height: 50px;
  font-size: 1.3rem;
  cursor: pointer;
  box-shadow: 0 6px 20px rgba(59, 130, 246, 0.4);
  z-index: 999;
  transition: var(--transition);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  visibility: hidden;
  transform: translateY(20px);
}

#backTop.show {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

#backTop:hover {
  transform: translateY(-4px) scale(1.1);
  box-shadow: 0 10px 30px rgba(59, 130, 246, 0.5);
}

/* ---------- 滚动动画 ---------- */
.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.8s cubic-bezier(0.4, 0, 0.2, 1),
              transform 0.8s cubic-bezier(0.4, 0, 0.2, 1);
}

.reveal.visible {
  opacity: 1;
  transform: none;
}

/* 延迟工具类 */
.delay-1 { transition-delay: 0.1s; }
.delay-2 { transition-delay: 0.2s; }
.delay-3 { transition-delay: 0.3s; }

/* ---------- 图片占位 ---------- */
.svg-placeholder {
  background: var(--bg-accent);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1.5rem;
  margin: 0.5rem 0;
  border: 1px dashed var(--border-light);
}

/* ---------- 徽章容器 ---------- */
.badge-cont {
  display: flex;
  gap: 0.8rem;
  flex-wrap: wrap;
}

/* ---------- 响应式 ---------- */
/* 平板 */
@media (max-width: 1024px) {
  .container {
    padding: 0 20px;
  }

  .search-box input {
    width: 120px;
  }
}

/* 手机 */
@media (max-width: 768px) {
  :root {
    --header-height: 64px;
  }

  .container {
    padding: 0 16px;
  }

  .nav-links,
  .search-box {
    display: none;
  }

  .menu-toggle {
    display: flex;
  }

  .hero {
    flex-direction: column;
    text-align: center;
    padding: 2rem 1.5rem;
  }

  .hero p {
    font-size: 1rem;
  }

  .hero > div:last-child {
    display: none;
  }

  .card-grid {
    grid-template-columns: 1fr;
    gap: 1.2rem;
  }

  h1 {
    font-size: 1.8rem;
  }

  h2 {
    font-size: 1.4rem;
    padding-left: 0.6rem;
  }

  h3 {
    font-size: 1.15rem;
  }

  .article-item {
    padding: 1.2rem;
  }

  .faq-question {
    padding: 1rem;
    font-size: 0.95rem;
  }

  .faq-answer {
    padding: 0 1rem 1rem;
  }

  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: 1.8rem;
  }

  .footer-bottom {
    flex-direction: column;
    text-align: center;
    align-items: center;
  }

  #backTop {
    bottom: 1.5rem;
    right: 1.5rem;
    width: 44px;
    height: 44px;
    font-size: 1.1rem;
  }

  .breadcrumb {
    font-size: 0.85rem;
  }
}

/* 小手机 */
@media (max-width: 480px) {
  .footer-grid {
    grid-template-columns: 1fr;
  }

  .header-flex {
    gap: 0.5rem;
  }

  .logo {
    font-size: 1.4rem;
  }

  .theme-toggle,
  .menu-toggle {
    width: 38px;
    height: 38px;
    font-size: 1rem;
  }
}

/* ---------- 暗色模式微调 ---------- */
[data-theme="dark"] .hero h1 {
  text-shadow: 0 2px 20px rgba(59, 130, 246, 0.3);
}

[data-theme="dark"] .card {
  background: var(--bg-card);
}

[data-theme="dark"] .search-box button {
  background: linear-gradient(135deg, var(--brand-color), var(--brand-dark));
}

/* ---------- 焦点可见性 ---------- */
:focus-visible {
  outline: 3px solid var(--brand-color);
  outline-offset: 2px;
}

/* ---------- 打印样式 ---------- */
@media print {
  header,
  footer,
  #backTop,
  .menu-toggle,
  .theme-toggle {
    display: none !important;
  }

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

  .hero {
    background: none;
    border: 1px solid #ccc;
  }

  .reveal {
    opacity: 1;
    transform: none;
  }
}

/* ---------- 动画 ---------- */
@keyframes float {
  0%, 100% {
    transform: translateY(0);
  }
  50% {
    transform: translateY(-10px);
  }
}

@keyframes pulse {
  0%, 100% {
    opacity: 1;
  }
  50% {
    opacity: 0.5;
  }
}

@keyframes shimmer {
  0% {
    background-position: -1000px 0;
  }
  100% {
    background-position: 1000px 0;
  }
}

/* 悬停时内容卡片图标动画 */
.card:hover .card-icon {
  animation: float 1s ease-in-out infinite;
}

/* 阅读更多链接 */
.read-more {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  font-weight: 600;
}

.read-more::after {
  content: '→';
  transition: transform 0.3s;
}

.read-more:hover::after {
  transform: translateX(4px);
}
```