```css
:root {
  --primary: #e11d48;
  --primary-dark: #be123c;
  --primary-light: #fb7185;
  --secondary: #0ea5e9;
  --accent: #f59e0b;
  --success: #10b981;
  --bg: #f8fafc;
  --bg-alt: #f1f5f9;
  --surface: #ffffff;
  --surface-hover: #f8fafc;
  --text: #1e293b;
  --text-secondary: #2d3c50;
  --text-muted: #64748b;
  --border: #e2e8f0;
  --border-light: #eef2f6;
  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.04), 0 1px 2px rgba(0, 0, 0, 0.06);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.07), 0 2px 4px -1px rgba(0, 0, 0, 0.04);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.07), 0 4px 6px -2px rgba(0, 0, 0, 0.04);
  --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.07), 0 10px 10px -5px rgba(0, 0, 0, 0.03);
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  --radius-full: 9999px;
  --font-sans: system-ui, -apple-system, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', sans-serif;
  --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-base: 250ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 350ms cubic-bezier(0.4, 0, 0.2, 1);
  --nav-height: 64px;
  --gradient-hero: linear-gradient(145deg, #eef6ff 0%, #ffffff 50%, #fdf2f8 100%);
  --gradient-primary: linear-gradient(135deg, #e11d48 0%, #be123c 100%);
  --gradient-card: linear-gradient(145deg, #ffffff 0%, #f8fafc 100%);
  --glass-bg: rgba(255, 255, 255, 0.85);
  --glass-border: rgba(255, 255, 255, 0.3);
  --glass-shadow: 0 8px 32px rgba(0, 0, 0, 0.08);
}

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

html {
  font-size: 16px;
  -webkit-text-size-adjust: 100%;
  scroll-padding-top: var(--nav-height);
}

body {
  font-family: var(--font-sans);
  background: var(--bg);
  color: var(--text);
  line-height: 1.7;
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  transition: background-color 0.3s ease, color 0.3s ease;
}

.container {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 24px;
}

/* ============ 导航栏 ============ */
.nav {
  position: sticky;
  top: 0;
  background: var(--glass-bg);
  backdrop-filter: blur(20px) saturate(180%);
  -webkit-backdrop-filter: blur(20px) saturate(180%);
  z-index: 1000;
  box-shadow: 0 1px 0 rgba(255, 255, 255, 0.1), 0 8px 32px rgba(0, 0, 0, 0.05);
  border-bottom: 1px solid rgba(226, 232, 240, 0.5);
  transition: all 0.3s ease;
}

.nav-wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: var(--nav-height);
}

.logo {
  font-weight: 800;
  font-size: 1.5rem;
  color: #0b1f33;
  display: flex;
  align-items: center;
  gap: 10px;
  letter-spacing: -0.02em;
  text-decoration: none;
  transition: transform 0.2s ease;
}

.logo:hover {
  transform: scale(1.02);
}

.logo svg {
  width: 36px;
  height: 36px;
  filter: drop-shadow(0 2px 4px rgba(225, 29, 72, 0.3));
  transition: transform 0.3s ease;
}

.logo:hover svg {
  transform: rotate(-8deg);
}

.nav-links {
  display: flex;
  gap: 32px;
  font-weight: 500;
  align-items: center;
}

.nav-links a {
  text-decoration: none;
  color: #1e3a5f;
  font-size: 0.95rem;
  font-weight: 600;
  transition: color 0.2s ease;
  position: relative;
  padding: 4px 0;
}

.nav-links a::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--primary);
  border-radius: 2px;
  transition: width 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.nav-links a:hover {
  color: var(--primary);
}

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

.menu-btn {
  display: none;
  background: none;
  border: none;
  font-size: 1.8rem;
  cursor: pointer;
  color: var(--text);
  padding: 4px;
  border-radius: 8px;
  transition: background-color 0.2s ease;
}

.menu-btn:hover {
  background: var(--border-light);
}

/* ============ 首屏 Hero ============ */
.hero {
  background: var(--gradient-hero);
  padding: 72px 0 80px;
  border-bottom: 1px solid rgba(226, 232, 240, 0.5);
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: -50%;
  right: -20%;
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(225, 29, 72, 0.08) 0%, transparent 70%);
  border-radius: 50%;
  pointer-events: none;
}

.hero::after {
  content: '';
  position: absolute;
  bottom: -30%;
  left: -10%;
  width: 400px;
  height: 400px;
  background: radial-gradient(circle, rgba(14, 165, 233, 0.06) 0%, transparent 70%);
  border-radius: 50%;
  pointer-events: none;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 48px;
  align-items: center;
  position: relative;
  z-index: 1;
}

.hero h1 {
  font-size: 2.5rem;
  line-height: 1.25;
  font-weight: 800;
  color: #0b1f33;
  margin-bottom: 20px;
  letter-spacing: -0.02em;
  animation: fadeInUp 0.6s ease-out;
}

.hero p {
  font-size: 1.1rem;
  color: var(--text-secondary);
  margin-bottom: 24px;
  line-height: 1.8;
  animation: fadeInUp 0.6s ease-out 0.1s both;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
  color: white;
  padding: 6px 16px;
  border-radius: var(--radius-full);
  font-size: 0.85rem;
  font-weight: 600;
  margin-bottom: 20px;
  box-shadow: 0 4px 12px rgba(225, 29, 72, 0.3);
  animation: fadeInUp 0.6s ease-out;
}

.hero-visual {
  animation: fadeIn 0.8s ease-out 0.2s both;
}

.hero-visual svg {
  width: 100%;
  max-height: 280px;
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-xl);
  transition: transform 0.3s ease;
}

.hero-visual svg:hover {
  transform: translateY(-4px) scale(1.02);
}

/* ============ 通用区块 ============ */
.section {
  padding: 64px 0;
  position: relative;
}

.section-title {
  font-size: 2rem;
  font-weight: 800;
  color: #0b1f33;
  margin-bottom: 36px;
  position: relative;
  padding-bottom: 16px;
  letter-spacing: -0.01em;
  line-height: 1.3;
}

.section-title::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 80px;
  height: 4px;
  background: var(--gradient-primary);
  border-radius: 4px;
  transition: width 0.3s ease;
}

.section-title:hover::after {
  width: 120px;
}

/* ============ 卡片 ============ */
.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 24px;
  margin-top: 36px;
}

.card {
  background: var(--glass-bg);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-radius: var(--radius-lg);
  padding: 28px;
  box-shadow: var(--shadow-md);
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  border: 1px solid rgba(255, 255, 255, 0.6);
  position: relative;
  overflow: hidden;
}

.card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: var(--gradient-primary);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.3s ease;
}

.card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-xl);
  border-color: rgba(225, 29, 72, 0.2);
}

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

.card h3 {
  font-size: 1.25rem;
  margin-bottom: 12px;
  font-weight: 700;
  color: var(--text);
}

.card h4 {
  font-size: 1.1rem;
  margin-bottom: 10px;
  font-weight: 600;
}

.card p {
  color: var(--text-secondary);
  font-size: 0.95rem;
  line-height: 1.7;
}

/* ============ 表格 ============ */
.table-wrapper {
  overflow-x: auto;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
  background: var(--surface);
  position: relative;
}

table {
  width: 100%;
  border-collapse: separate;
  border-spacing: 0;
  background: var(--surface);
  border-radius: var(--radius-lg);
  overflow: hidden;
  min-width: 700px;
}

thead tr {
  background: linear-gradient(135deg, #0b1f33 0%, #1a3a5e 100%);
  color: white;
}

th {
  padding: 16px 20px;
  text-align: left;
  font-weight: 600;
  font-size: 0.95rem;
  letter-spacing: 0.02em;
}

td {
  padding: 16px 20px;
  border-bottom: 1px solid var(--border-light);
  font-size: 0.95rem;
}

tbody tr {
  transition: background-color 0.2s ease, transform 0.2s ease;
}

tbody tr:hover {
  background: var(--surface-hover);
}

tbody tr:last-child td {
  border-bottom: none;
}

/* ============ FAQ ============ */
.faq-item {
  background: var(--glass-bg);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-radius: var(--radius-md);
  padding: 20px 24px;
  margin-bottom: 12px;
  border: 1px solid rgba(255, 255, 255, 0.6);
  transition: all 0.3s ease;
  box-shadow: var(--shadow-sm);
}

.faq-item:hover {
  box-shadow: var(--shadow-md);
  border-color: rgba(225, 29, 72, 0.2);
  transform: translateX(4px);
}

.faq-q {
  font-weight: 600;
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 1.05rem;
  color: var(--text);
  user-select: none;
  gap: 16px;
}

.faq-q span {
  font-size: 1.2rem;
  transition: transform 0.3s ease;
  color: var(--primary);
  flex-shrink: 0;
}

.faq-a {
  margin-top: 12px;
  color: var(--text-secondary);
  line-height: 1.8;
  font-size: 0.95rem;
  border-top: 1px solid var(--border-light);
  padding-top: 12px;
}

/* ============ 文章卡片 ============ */
.article-card {
  border-bottom: 1px dashed var(--border);
  padding: 20px 0;
  transition: all 0.3s ease;
  padding-left: 16px;
  border-radius: 8px;
}

.article-card:hover {
  background: var(--surface-hover);
  padding-left: 24px;
  border-bottom-color: var(--primary);
}

.article-card h3 {
  font-size: 1.15rem;
  margin-bottom: 8px;
  font-weight: 600;
  color: var(--text);
  transition: color 0.2s ease;
}

.article-card:hover h3 {
  color: var(--primary);
}

.article-meta {
  font-size: 0.85rem;
  color: var(--text-muted);
  margin-bottom: 8px;
  display: flex;
  gap: 16px;
  align-items: center;
}

.article-card p {
  color: var(--text-secondary);
  font-size: 0.95rem;
  line-height: 1.7;
}

.article-card a {
  color: var(--primary);
  text-decoration: none;
  font-weight: 500;
  transition: all 0.2s ease;
}

.article-card a:hover {
  text-decoration: underline;
}

/* ============ 工具类 ============ */
.flex {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
}

.btn {
  background: var(--gradient-primary);
  color: white;
  border: none;
  padding: 14px 32px;
  border-radius: var(--radius-full);
  font-weight: 600;
  cursor: pointer;
  font-size: 0.95rem;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  box-shadow: 0 4px 12px rgba(225, 29, 72, 0.3);
  position: relative;
  overflow: hidden;
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

.btn::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
  transition: left 0.5s ease;
}

.btn:hover::before {
  left: 100%;
}

.btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(225, 29, 72, 0.4);
}

.btn:active {
  transform: translateY(0);
  box-shadow: 0 2px 8px rgba(225, 29, 72, 0.3);
}

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

.btn-outline::before {
  display: none;
}

.btn-outline:hover {
  background: rgba(225, 29, 72, 0.08);
  box-shadow: 0 4px 12px rgba(225, 29, 72, 0.15);
  border-color: var(--primary-dark);
  color: var(--primary-dark);
}

.mt-2 {
  margin-top: 24px;
}

.grid-2 {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 32px;
}

.grid-2 > div {
  background: var(--glass-bg);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  padding: 32px;
  border-radius: var(--radius-lg);
  border: 1px solid rgba(255, 255, 255, 0.6);
  box-shadow: var(--shadow-md);
  transition: all 0.3s ease;
}

.grid-2 > div:hover {
  box-shadow: var(--shadow-lg);
  transform: translateY(-2px);
}

.grid-2 h3 {
  margin-bottom: 16px;
  font-size: 1.2rem;
  color: var(--text);
}

.grid-2 ul {
  list-style: none;
  margin-top: 8px;
}

.grid-2 li {
  padding: 8px 0;
  border-bottom: 1px dashed var(--border-light);
  color: var(--text-secondary);
}

.grid-2 li:last-child {
  border-bottom: none;
}

.grid-2 ol {
  padding-left: 20px;
  margin-top: 8px;
}

.grid-2 ol li {
  padding: 6px 0;
  color: var(--text-secondary);
}

/* ============ 页脚 ============ */
footer {
  background: linear-gradient(135deg, #0b1f33 0%, #0f172a 100%);
  color: #b6c8da;
  padding: 56px 0;
  margin-top: 64px;
  position: relative;
  overflow: hidden;
}

footer::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
}

footer a {
  color: #b6c8da;
  text-decoration: none;
  transition: color 0.2s ease;
}

footer a:hover {
  color: var(--primary-light);
}

.footer-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 40px;
}

.footer-grid h4 {
  color: white;
  margin-bottom: 16px;
  font-size: 1.05rem;
  font-weight: 600;
}

.footer-grid p {
  font-size: 0.9rem;
  line-height: 1.8;
  opacity: 0.85;
}

/* ============ 返回顶部 ============ */
#backTop {
  position: fixed;
  bottom: 40px;
  right: 30px;
  background: var(--gradient-primary);
  color: white;
  width: 48px;
  height: 48px;
  border-radius: var(--radius-full);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.4rem;
  cursor: pointer;
  opacity: 0;
  transform: translateY(20px);
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  border: none;
  z-index: 999;
  box-shadow: 0 4px 16px rgba(225, 29, 72, 0.4);
}

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

#backTop:hover {
  transform: translateY(-4px);
  box-shadow: 0 8px 24px rgba(225, 29, 72, 0.5);
}

/* ============ 动画 ============ */
@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 ============ */
@media (prefers-reduced-motion: no-preference) {
  .card, .faq-item, .article-card, .grid-2 > div {
    animation: fadeInUp 0.5s ease-out both;
    animation-timeline: view();
    animation-range: entry 0% entry 40%;
  }
}

/* ============ 响应式 ============ */
@media (max-width: 1024px) {
  .hero-grid {
    grid-template-columns: 1fr 0.9fr;
    gap: 32px;
  }
  
  .hero h1 {
    font-size: 2.2rem;
  }
  
  .section {
    padding: 48px 0;
  }
  
  .section-title {
    font-size: 1.8rem;
  }
}

@media (max-width: 900px) {
  .hero-grid {
    grid-template-columns: 1fr;
    gap: 40px;
  }
  
  .hero {
    padding: 48px 0 56px;
  }
  
  .hero-visual svg {
    max-height: 220px;
  }
  
  .grid-2 {
    grid-template-columns: 1fr;
    gap: 24px;
  }
  
  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: 32px;
  }
}

@media (max-width: 768px) {
  .nav-links {
    display: none;
    flex-direction: column;
    background: var(--glass-bg);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    position: absolute;
    top: var(--nav-height);
    left: 0;
    right: 0;
    padding: 24px;
    gap: 20px;
    box-shadow: 0 16px 48px rgba(0, 0, 0, 0.12);
    border-bottom: 1px solid var(--border);
    animation: fadeIn 0.3s ease;
  }
  
  .nav-links.open {
    display: flex;
  }
  
  .menu-btn {
    display: block;
  }
  
  .nav-links a {
    font-size: 1.1rem;
    padding: 8px 0;
    border-bottom: 1px solid var(--border-light);
  }
  
  .nav-links a:last-child {
    border-bottom: none;
  }
  
  .nav-links a::after {
    display: none;
  }
  
  .hero h1 {
    font-size: 1.9rem;
  }
  
  .hero p {
    font-size: 1rem;
  }
  
  .section-title {
    font-size: 1.6rem;
  }
  
  .card-grid {
    grid-template-columns: 1fr;
    gap: 16px;
  }
  
  .btn {
    width: 100%;
    justify-content: center;
    padding: 14px 24px;
  }
  
  .flex {
    flex-direction: column;
    gap: 12px;
  }
  
  .footer-grid {
    grid-template-columns: 1fr;
    gap: 24px;
  }
  
  #backTop {
    bottom: 24px;
    right: 20px;
    width: 44px;
    height: 44px;
    font-size: 1.2rem;
  }
  
  .container {
    padding: 0 20px;
  }
  
  .card, .grid-2 > div {
    padding: 24px;
  }
  
  .faq-item {
    padding: 16px 20px;
  }
  
  .grid-2 > div {
    padding: 24px;
  }
}

@media (max-width: 480px) {
  .hero h1 {
    font-size: 1.6rem;
  }
  
  .hero-badge {
    font-size: 0.75rem;
    padding: 4px 12px;
  }
  
  .section-title {
    font-size: 1.4rem;
  }
  
  .logo {
    font-size: 1.3rem;
  }
  
  .logo svg {
    width: 30px;
    height: 30px;
  }
  
  .card h3 {
    font-size: 1.1rem;
  }
  
  .faq-q {
    font-size: 0.95rem;
  }
  
  .article-card h3 {
    font-size: 1rem;
  }
  
  .table-wrapper {
    margin: 0 -20px;
    border-radius: 0;
  }
  
  th, td {
    padding: 12px 16px;
    font-size: 0.85rem;
  }
}

/* ============ 暗色模式 ============ */
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0f172a;
    --bg-alt: #1e293b;
    --surface: #1e293b;
    --surface-hover: #2d3a4f;
    --text: #e2e8f0;
    --text-secondary: #cbd5e1;
    --text-muted: #94a3b8;
    --border: #2d3a4f;
    --border-light: #334155;
    --glass-bg: rgba(30, 41, 59, 0.85);
    --glass-border: rgba(255, 255, 255, 0.08);
    --gradient-hero: linear-gradient(145deg, #0f172a 0%, #1e293b 50%, #1a1a2e 100%);
  }
  
  body {
    background: var(--bg);
    color: var(--text);
  }
  
  .nav {
    background: rgba(15, 23, 42, 0.9);
    border-bottom-color: rgba(255, 255, 255, 0.05);
  }
  
  .logo {
    color: #f1f5f9;
  }
  
  .nav-links a {
    color: #cbd5e1;
  }
  
  .nav-links a:hover {
    color: var(--primary-light);
  }
  
  .hero {
    background: var(--gradient-hero);
    border-bottom-color: rgba(255, 255, 255, 0.05);
  }
  
  .hero h1 {
    color: #f1f5f9;
  }
  
  .hero p {
    color: #cbd5e1;
  }
  
  .section-title {
    color: #f1f5f9;
  }
  
  .card {
    background: var(--glass-bg);
    border-color: rgba(255, 255, 255, 0.08);
    box-shadow: var(--shadow-md);
  }
  
  .card:hover {
    box-shadow: var(--shadow-xl);
    border-color: rgba(225, 29, 72, 0.3);
  }
  
  .card h3, .card h4 {
    color: #f1f5f9;
  }
  
  .card p {
    color: #cbd5e1;
  }
  
  .faq-item {
    background: var(--glass-bg);
    border-color: rgba(255, 255, 255, 0.08);
  }
  
  .faq-q {
    color: #f1f5f9;
  }
  
  .faq-a {
    color: #cbd5e1;
    border-top-color: var(--border);
  }
  
  .article-card {
    border-bottom-color: var(--border);
  }
  
  .article-card:hover {
    background: var(--surface-hover);
  }
  
  .article-card h3 {
    color: #f1f5f9;
  }
  
  .article-card p {
    color: #cbd5e1;
  }
  
  .article-meta {
    color: var(--text-muted);
  }
  
  .grid-2 > div {
    background: var(--glass-bg);
    border-color: rgba(255, 255, 255, 0.08);
  }
  
  .grid-2 h3 {
    color: #f1f5f9;
  }
  
  .grid-2 li {
    color: #cbd5e1;
    border-bottom-color: var(--border);
  }
  
  .grid-2 ol li {
    color: #cbd5e1;
  }
  
  table {
    background: var(--surface);
  }
  
  thead tr {
    background: linear-gradient(135deg, #1a3a5e 0%, #0f172a 100%);
  }
  
  td {
    border-bottom-color: var(--border);
  }
  
  tbody tr:hover {
    background: var(--surface-hover);
  }
  
  footer {
    background: linear-gradient(135deg, #020617 0%, #0f172a 100%);
  }
  
  .menu-btn {
    color: #e2e8f0;
  }
  
  .menu-btn:hover {
    background: var(--surface-hover);
  }
  
  .btn-outline {
    border-color: var(--primary-light);
    color: var(--primary-light);
  }
  
  .btn-outline:hover {
    background: rgba(225, 29, 72, 0.15);
    border-color: var(--primary-light);
    color: var(--primary-light);
  }
  
  .hero-badge {
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
  }
  
  #backTop {
    background: var(--gradient-primary);
  }
  
  .section-title::after {
    background: var(--gradient-primary);
  }
  
  .card::before {
    background: var(--gradient-primary);
  }
}

/* ============ 打印样式 ============ */
@media print {
  .nav, .menu-btn, #backTop, .btn, footer {
    display: none !important;
  }
  
  body {
    background: white;
    color: black;
  }
  
  .hero {
    background: none;
    padding: 24px 0;
  }
  
  .section {
    padding: 24px 0;
  }
  
  .card, .faq-item, .grid-2 > div {
    box-shadow: none;
    border: 1px solid #ccc;
    background: white;
  }
  
  .card:hover, .faq-item:hover, .grid-2 > div:hover {
    transform: none;
    box-shadow: none;
  }
}

/* ============ 无障碍 ============ */
@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;
  }
}

/* ============ 滚动条美化 ============ */
::-webkit-scrollbar {
  width: 10px;
  height: 10px;
}

::-webkit-scrollbar-track {
  background: var(--bg);
}

::-webkit-scrollbar-thumb {
  background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
  border-radius: 5px;
  border: 2px solid var(--bg);
}

::-webkit-scrollbar-thumb:hover {
  background: linear-gradient(135deg, var(--primary-dark) 0%, var(--secondary) 100%);
}

/* ============ 选择文本 ============ */
::selection {
  background: rgba(225, 29, 72, 0.2);
  color: var(--text);
}

/* ============ 焦点样式 ============ */
:focus-visible {
  outline: 2px solid var(--primary);
  outline-offset: 2px;
  border-radius: 4px;
}

/* ============ 链接样式 ============ */
a {
  color: var(--primary);
  text-decoration: none;
  transition: color 0.2s ease;
}

a:hover {
  color: var(--primary-dark);
}

/* ============ 图片样式 ============ */
img {
  max-width: 100%;
  height: auto;
  border-radius: var(--radius-md);
}

/* ============ 列表样式 ============ */
ul, ol {
  padding-left: 20px;
}

li {
  margin-bottom: 4px;
}

/* ============ 强调样式 ============ */
strong {
  font-weight: 700;
  color: var(--text);
}

em {
  font-style: italic;
}

/* ============ 标题层级 ============ */
h1, h2, h3, h4, h5, h6 {
  line-height: 1.3;
  font-weight: 700;
  color: var(--text);
}

/* ============ 表格容器 ============ */
div:has(> table) {
  overflow-x: auto;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
}

/* ============ 分隔线 ============ */
hr {
  border: none;
  height: 1px;
  background: var(--border);
  margin: 32px 0;
}

/* ============ 徽章 ============ */
.badge {
  display: inline-block;
  padding: 4px 12px;
  border-radius: var(--radius-full);
  font-size: 0.8rem;
  font-weight: 600;
  background: rgba(225, 29, 72, 0.1);
  color: var(--primary);
}

/* ============ 引用 ============ */
blockquote {
  border-left: 4px solid var(--primary);
  padding: 12px 20px;
  background: var(--glass-bg);
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
  margin: 16px 0;
  font-style: italic;
  color: var(--text-secondary);
}

/* ============ 代码块 ============ */
code {
  background: var(--bg-alt);
  padding: 2px 8px;
  border-radius: 4px;
  font-family: 'SF Mono', 'Consolas', 'Courier New', monospace;
  font-size: 0.9em;
  color: var(--primary);
}

pre {
  background: var(--bg-alt);
  padding: 16px;
  border-radius: var(--radius-md);
  overflow-x: auto;
  margin: 16px 0;
}

pre code {
  background: none;
  padding: 0;
  color: var(--text);
}
```