```css
/* ===== 红薯影视 完整样式表 ===== */
:root {
  --bg-primary: #ffffff;
  --bg-secondary: #f8fafc;
  --bg-card: #f1f5f9;
  --bg-footer: #1e293b;
  --text-primary: #17202A;
  --text-secondary: #243447;
  --text-muted: #334155;
  --text-heading: #0f172a;
  --text-footer: #E2E8F0;
  --accent: #d97706;
  --accent-dark: #92400e;
  --border-light: #cbd5e1;
  --glass-bg: rgba(255, 255, 255, 0.7);
  --glass-border: rgba(255, 255, 255, 0.3);
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.06);
  --shadow-md: 0 4px 20px rgba(0, 0, 0, 0.08);
  --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.12);
  --radius-sm: 12px;
  --radius-md: 20px;
  --radius-lg: 28px;
  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

[data-theme="dark"] {
  --bg-primary: #0f172a;
  --bg-secondary: #1e293b;
  --bg-card: #1e293b;
  --bg-footer: #0b1120;
  --text-primary: #E2E8F0;
  --text-secondary: #cbd5e1;
  --text-muted: #94a3b8;
  --text-heading: #f8fafc;
  --text-footer: #E2E8F0;
  --accent: #fbbf24;
  --accent-dark: #f59e0b;
  --border-light: #334155;
  --glass-bg: rgba(30, 41, 59, 0.7);
  --glass-border: rgba(148, 163, 184, 0.2);
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.3);
  --shadow-md: 0 4px 20px rgba(0, 0, 0, 0.4);
  --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.5);
}

* {
  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, 'Helvetica Neue', 'Noto Sans', 'PingFang SC', 'Microsoft YaHei', sans-serif;
  background-color: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.7;
  transition: var(--transition);
  overflow-x: hidden;
}

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

::selection {
  background: var(--accent);
  color: #fff;
}

::-webkit-scrollbar {
  width: 8px;
  height: 8px;
}

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

::-webkit-scrollbar-thumb {
  background: var(--accent);
  border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
  background: var(--accent-dark);
}

/* ===== 导航栏 ===== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: var(--glass-bg);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--glass-border);
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
}

.site-header.scrolled {
  box-shadow: var(--shadow-md);
}

.nav-wrap {
  display: flex;
  justify-content: space-between;
  align-items: center;
  height: 70px;
  gap: 1rem;
}

.logo a {
  font-size: 1.6rem;
  font-weight: 800;
  color: var(--text-heading);
  text-decoration: none;
  letter-spacing: 0.5px;
  display: flex;
  align-items: center;
  gap: 8px;
  transition: var(--transition);
}

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

.logo span {
  font-size: 1.8rem;
}

.logo a::after {
  content: '';
  display: inline-block;
  width: 6px;
  height: 6px;
  background: var(--accent);
  border-radius: 50%;
  margin-left: 4px;
  animation: pulse 2s infinite;
}

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

.nav-links {
  display: flex;
  gap: 0.5rem;
  align-items: center;
}

.nav-links a {
  color: var(--text-secondary);
  text-decoration: none;
  font-weight: 500;
  font-size: 0.95rem;
  padding: 0.5rem 1rem;
  border-radius: 30px;
  transition: var(--transition);
  position: relative;
}

.nav-links a::before {
  content: '';
  position: absolute;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 0;
  height: 2px;
  background: var(--accent);
  transition: width 0.3s ease;
}

.nav-links a:hover {
  color: var(--accent);
  background: rgba(217, 119, 6, 0.08);
}

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

.nav-actions {
  display: flex;
  align-items: center;
  gap: 0.6rem;
}

.search-box {
  display: flex;
  align-items: center;
  background: var(--bg-card);
  border-radius: 40px;
  padding: 0.15rem 0.15rem 0.15rem 1.2rem;
  border: 1px solid var(--border-light);
  transition: var(--transition);
  backdrop-filter: blur(10px);
}

.search-box:focus-within {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(217, 119, 6, 0.15);
}

.search-box input {
  border: none;
  background: transparent;
  padding: 0.5rem 0.3rem;
  color: var(--text-primary);
  width: 130px;
  outline: none;
  font-size: 0.9rem;
  transition: width 0.3s ease;
}

.search-box input:focus {
  width: 180px;
}

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

.search-box button {
  background: var(--accent);
  border: none;
  border-radius: 30px;
  padding: 0.5rem 1rem;
  color: white;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
  font-size: 0.9rem;
}

.search-box button:hover {
  background: var(--accent-dark);
  transform: scale(1.05);
}

.theme-toggle,
.menu-toggle {
  background: var(--bg-card);
  border: none;
  border-radius: 30px;
  width: 40px;
  height: 40px;
  font-size: 1.2rem;
  cursor: pointer;
  color: var(--text-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}

.theme-toggle:hover,
.menu-toggle:hover {
  background: var(--accent);
  color: white;
  transform: rotate(8deg) scale(1.05);
}

.theme-toggle:active {
  transform: rotate(180deg) scale(0.9);
}

.menu-toggle {
  display: none;
}

/* 移动菜单 */
.mobile-nav {
  display: none;
  flex-direction: column;
  background: var(--glass-bg);
  backdrop-filter: blur(20px);
  padding: 1rem;
  gap: 0.5rem;
  border-top: 1px solid var(--glass-border);
  animation: slideDown 0.3s ease;
}

@keyframes slideDown {
  from {
    opacity: 0;
    transform: translateY(-10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.mobile-nav a {
  color: var(--text-primary);
  text-decoration: none;
  font-size: 1rem;
  padding: 0.8rem 1rem;
  border-radius: 10px;
  transition: var(--transition);
  border-left: 3px solid transparent;
}

.mobile-nav a:hover {
  background: rgba(217, 119, 6, 0.1);
  border-left-color: var(--accent);
  color: var(--accent);
}

/* ===== 面包屑 ===== */
.breadcrumb {
  color: var(--text-muted);
  padding: 1rem 0;
  font-size: 0.9rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.breadcrumb a {
  color: var(--accent);
  text-decoration: none;
  transition: var(--transition);
}

.breadcrumb a:hover {
  color: var(--accent-dark);
  text-decoration: underline;
}

/* ===== Hero 区域 ===== */
.hero {
  background: linear-gradient(135deg, var(--bg-secondary) 0%, var(--bg-card) 50%, var(--bg-primary) 100%);
  padding: 4rem 0;
  border-bottom: 1px solid var(--border-light);
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: -50%;
  right: -20%;
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(217, 119, 6, 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(59, 130, 246, 0.05) 0%, transparent 70%);
  border-radius: 50%;
  pointer-events: none;
}

.hero-content {
  display: grid;
  grid-template-columns: 1.4fr 1fr;
  gap: 3rem;
  align-items: center;
  position: relative;
  z-index: 1;
}

.hero-text {
  animation: fadeInUp 0.8s ease;
}

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

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background: linear-gradient(135deg, var(--accent), var(--accent-dark));
  color: #fff;
  padding: 0.4rem 1.2rem;
  border-radius: 30px;
  font-weight: 600;
  font-size: 0.9rem;
  margin-bottom: 1.5rem;
  box-shadow: 0 4px 15px rgba(217, 119, 6, 0.3);
  animation: badgeGlow 2s ease-in-out infinite;
}

@keyframes badgeGlow {
  0%, 100% { box-shadow: 0 4px 15px rgba(217, 119, 6, 0.3); }
  50% { box-shadow: 0 4px 25px rgba(217, 119, 6, 0.5); }
}

.hero-text h1 {
  font-size: clamp(2rem, 4vw, 3.2rem);
  font-weight: 800;
  color: var(--text-heading);
  line-height: 1.2;
  margin-bottom: 1.2rem;
  background: linear-gradient(135deg, var(--text-heading), var(--accent));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-text p {
  font-size: 1.1rem;
  color: var(--text-secondary);
  max-width: 600px;
  line-height: 1.8;
}

.hero-cta {
  display: flex;
  gap: 1rem;
  margin-top: 2.5rem;
  flex-wrap: wrap;
}

/* ===== 按钮 ===== */
.btn {
  background: linear-gradient(135deg, var(--accent), var(--accent-dark));
  color: white;
  padding: 0.8rem 2rem;
  border-radius: 60px;
  font-weight: 600;
  border: none;
  cursor: pointer;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  transition: var(--transition);
  box-shadow: 0 4px 15px rgba(217, 119, 6, 0.3);
  font-size: 1rem;
}

.btn:hover {
  transform: translateY(-3px);
  box-shadow: 0 8px 25px rgba(217, 119, 6, 0.4);
}

.btn:active {
  transform: translateY(-1px);
}

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

.btn-outline:hover {
  background: var(--accent);
  color: white;
  box-shadow: 0 4px 15px rgba(217, 119, 6, 0.2);
}

/* ===== 轮播 ===== */
.hero-slider {
  display: flex;
  overflow: hidden;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  position: relative;
  aspect-ratio: 16/10;
  background: var(--bg-card);
}

.hero-slide {
  min-width: 100%;
  transition: transform 0.5s ease;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
}

.hero-slide svg {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

/* ===== 通用区块 ===== */
section {
  margin: 4rem 0;
  position: relative;
}

.section-title {
  font-size: clamp(1.5rem, 3vw, 2.2rem);
  font-weight: 800;
  color: var(--text-heading);
  margin-bottom: 2rem;
  position: relative;
  padding-bottom: 0.8rem;
  display: inline-block;
}

.section-title:after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 4px;
  background: linear-gradient(90deg, var(--accent), transparent);
  border-radius: 4px;
}

.section-subtitle {
  color: var(--text-muted);
  margin-bottom: 2rem;
  font-size: 1.05rem;
}

/* ===== 卡片网格 ===== */
.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 1.8rem;
}

.card {
  background: var(--glass-bg);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border-radius: var(--radius-md);
  padding: 2rem;
  transition: var(--transition);
  border: 1px solid var(--glass-border);
  position: relative;
  overflow: hidden;
  box-shadow: var(--shadow-sm);
}

.card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 3px;
  background: linear-gradient(90deg, var(--accent), transparent);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.4s ease;
}

.card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-lg);
  border-color: rgba(217, 119, 6, 0.3);
}

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

.card h3 {
  color: var(--text-heading);
  font-size: 1.4rem;
  margin-bottom: 1rem;
  font-weight: 700;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.card h3 emoji {
  font-size: 1.6rem;
}

.card p {
  color: var(--text-secondary);
  line-height: 1.8;
}

.card p + p {
  margin-top: 0.8rem;
}

/* ===== 文章列表 ===== */
.article-list {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 1.5rem;
}

.article-item {
  background: var(--bg-secondary);
  padding: 1.8rem;
  border-radius: var(--radius-md);
  border-left: 4px solid var(--accent);
  transition: var(--transition);
  position: relative;
  overflow: hidden;
  box-shadow: var(--shadow-sm);
}

.article-item::after {
  content: '';
  position: absolute;
  top: 0;
  right: 0;
  width: 40px;
  height: 40px;
  background: linear-gradient(135deg, transparent 50%, rgba(217, 119, 6, 0.1) 50%);
  transition: var(--transition);
}

.article-item:hover {
  transform: translateX(8px);
  box-shadow: var(--shadow-md);
  background: var(--bg-card);
}

.article-item:hover::after {
  width: 100%;
  height: 100%;
  background: linear-gradient(135deg, transparent 50%, rgba(217, 119, 6, 0.05) 50%);
}

.article-item h4 {
  font-size: 1.2rem;
  color: var(--text-heading);
  margin-bottom: 0.6rem;
  font-weight: 600;
  line-height: 1.4;
}

.article-item .date {
  color: var(--text-muted);
  font-size: 0.85rem;
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  margin-bottom: 0.8rem;
  padding: 0.2rem 0.8rem;
  background: var(--bg-card);
  border-radius: 20px;
}

.article-item p {
  color: var(--text-secondary);
  font-size: 0.95rem;
  margin-bottom: 1rem;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.read-more {
  color: var(--accent);
  font-weight: 600;
  text-decoration: none;
  font-size: 0.9rem;
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
  transition: var(--transition);
}

.read-more:hover {
  color: var(--accent-dark);
  gap: 0.6rem;
}

/* ===== FAQ ===== */
.faq-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1rem;
  max-width: 900px;
}

.faq-item {
  background: var(--glass-bg);
  backdrop-filter: blur(10px);
  border-radius: var(--radius-sm);
  padding: 1.2rem 1.5rem;
  border: 1px solid var(--glass-border);
  transition: var(--transition);
  cursor: pointer;
}

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

.faq-question {
  font-weight: 600;
  font-size: 1.05rem;
  color: var(--text-heading);
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  user-select: none;
}

.faq-question span {
  font-size: 1.2rem;
  transition: transform 0.3s ease;
  color: var(--accent);
  flex-shrink: 0;
  width: 28px;
  height: 28px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(217, 119, 6, 0.1);
  border-radius: 50%;
}

.faq-answer {
  margin-top: 0;
  color: var(--text-secondary);
  max-height: 0;
  overflow: hidden;
  transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  line-height: 1.8;
}

.faq-answer p {
  padding-top: 1rem;
  border-top: 1px solid var(--border-light);
}

.faq-item.active {
  background: var(--bg-card);
  border-color: var(--accent);
}

.faq-item.active .faq-answer {
  max-height: 500px;
  margin-top: 0.5rem;
}

.faq-item.active .faq-question span {
  transform: rotate(45deg);
  background: var(--accent);
  color: white;
}

/* ===== HOW TO ===== */
.howto-steps {
  background: var(--glass-bg);
  backdrop-filter: blur(10px);
  border-radius: var(--radius-lg);
  padding: 2.5rem;
  border: 1px solid var(--glass-border);
  box-shadow: var(--shadow-md);
  position: relative;
  overflow: hidden;
}

.howto-steps::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 4px;
  background: linear-gradient(90deg, var(--accent), var(--accent-dark), var(--accent));
  background-size: 200% 100%;
  animation: gradientMove 3s linear infinite;
}

@keyframes gradientMove {
  0% { background-position: 200% 0; }
  100% { background-position: -200% 0; }
}

.howto-steps h3 {
  color: var(--text-heading);
  font-size: 1.4rem;
  margin-bottom: 1rem;
}

.howto-steps p {
  color: var(--text-secondary);
  margin-bottom: 0.8rem;
}

.howto-steps ol {
  padding-left: 1.2rem;
  margin: 1.5rem 0;
}

.howto-steps li {
  margin-bottom: 0.8rem;
  color: var(--text-primary);
  padding: 0.5rem 0.8rem;
  background: var(--bg-card);
  border-radius: 8px;
  transition: var(--transition);
  list-style: none;
  counter-increment: step-counter;
  position: relative;
  padding-left: 3rem;
}

.howto-steps li::before {
  content: counter(step-counter);
  position: absolute;
  left: 0.8rem;
  top: 50%;
  transform: translateY(-50%);
  width: 28px;
  height: 28px;
  background: var(--accent);
  color: white;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.8rem;
  font-weight: 700;
}

.howto-steps li:hover {
  transform: translateX(5px);
  background: var(--bg-secondary);
}

.howto-steps ol {
  counter-reset: step-counter;
}

.howto-steps strong {
  color: var(--accent);
}

/* ===== 表格 ===== */
.info-table {
  width: 100%;
  border-collapse: collapse;
  background: var(--glass-bg);
  backdrop-filter: blur(10px);
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--glass-border);
}

.info-table th,
.info-table td {
  padding: 1.2rem 1.5rem;
  text-align: left;
  border-bottom: 1px solid var(--border-light);
  transition: background 0.3s ease;
}

.info-table tr:last-child td {
  border-bottom: none;
}

.info-table th {
  background: linear-gradient(135deg, var(--accent), var(--accent-dark));
  color: white;
  font-weight: 600;
  font-size: 1rem;
}

.info-table td {
  color: var(--text-primary);
}

.info-table tr:hover td {
  background: rgba(217, 119, 6, 0.05);
}

/* ===== Footer ===== */
.site-footer {
  background: var(--bg-footer);
  color: var(--text-footer);
  padding: 4rem 0 2rem;
  margin-top: 5rem;
  position: relative;
  overflow: hidden;
}

.site-footer::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 3px;
  background: linear-gradient(90deg, var(--accent), transparent, var(--accent));
}

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

.site-footer h4 {
  color: #fff;
  font-size: 1.2rem;
  margin-bottom: 1.2rem;
  position: relative;
  padding-bottom: 0.6rem;
}

.site-footer h4::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 40px;
  height: 2px;
  background: var(--accent);
  border-radius: 2px;
}

.site-footer p {
  color: var(--text-footer);
  opacity: 0.9;
  margin-bottom: 0.5rem;
  line-height: 1.8;
  font-size: 0.95rem;
}

.site-footer a {
  color: var(--text-footer);
  opacity: 0.9;
  text-decoration: none;
  transition: var(--transition);
  display: inline-block;
  margin-bottom: 0.5rem;
  font-size: 0.95rem;
}

.site-footer a:hover {
  opacity: 1;
  color: var(--accent);
  transform: translateX(5px);
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  margin-top: 3rem;
  padding-top: 1.5rem;
  text-align: center;
  color: #94a3b8;
}

.footer-bottom p {
  font-size: 0.9rem;
  opacity: 0.8;
}

/* ===== 返回顶部 ===== */
#backTop {
  position: fixed;
  bottom: 40px;
  right: 40px;
  background: linear-gradient(135deg, var(--accent), var(--accent-dark));
  color: white;
  border: none;
  width: 48px;
  height: 48px;
  border-radius: 50%;
  font-size: 1.5rem;
  cursor: pointer;
  box-shadow: 0 8px 20px rgba(0, 0, 0, 0.2);
  transition: var(--transition);
  z-index: 999;
  opacity: 0;
  visibility: hidden;
  transform: translateY(20px);
  display: flex;
  align-items: center;
  justify-content: center;
}

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

#backTop:hover {
  transform: translateY(-5px) scale(1.1);
  box-shadow: 0 12px 30px rgba(217, 119, 6, 0.4);
}

#backTop:active {
  transform: scale(0.9);
}

/* ===== 滚动动画 ===== */
.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.8s ease, transform 0.8s ease;
}

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

/* ===== 图片占位 & SVG ===== */
.svg-placeholder {
  background: linear-gradient(135deg, var(--bg-card), var(--bg-secondary));
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1.5rem;
  min-height: 200px;
  transition: var(--transition);
}

.svg-placeholder:hover {
  transform: scale(1.02);
  box-shadow: var(--shadow-md);
}

/* ===== 响应式 ===== */
@media (max-width: 1024px) {
  .hero-content {
    grid-template-columns: 1fr;
    gap: 2rem;
  }
  
  .hero-slider {
    max-width: 600px;
    margin: 0 auto;
  }
  
  .card-grid {
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  }
}

@media (max-width: 900px) {
  .nav-links,
  .search-box {
    display: none;
  }
  
  .menu-toggle {
    display: flex;
  }
  
  .mobile-nav.open {
    display: flex;
  }
  
  .hero-content {
    grid-template-columns: 1fr;
    text-align: center;
  }
  
  .hero-text p {
    margin: 0 auto;
  }
  
  .hero-cta {
    justify-content: center;
  }
  
  .footer-grid {
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  }
  
  section {
    margin: 3rem 0;
  }
  
  .section-title {
    font-size: 1.8rem;
  }
}

@media (max-width: 600px) {
  .container {
    padding: 0 16px;
  }
  
  .hero {
    padding: 3rem 0;
  }
  
  .hero-text h1 {
    font-size: 2rem;
  }
  
  .card-grid,
  .article-list {
    grid-template-columns: 1fr;
  }
  
  .footer-grid {
    grid-template-columns: 1fr;
    gap: 1.5rem;
  }
  
  .howto-steps {
    padding: 1.5rem;
  }
  
  .info-table th,
  .info-table td {
    padding: 0.8rem;
    font-size: 0.9rem;
  }
  
  #backTop {
    bottom: 20px;
    right: 20px;
    width: 42px;
    height: 42px;
    font-size: 1.2rem;
  }
  
  .logo a {
    font-size: 1.4rem;
  }
  
  .search-box input:focus {
    width: 120px;
  }
}

/* ===== 暗色模式适配 ===== */
[data-theme="dark"] .card::before {
  background: linear-gradient(90deg, var(--accent), transparent);
}

[data-theme="dark"] .hero-badge {
  background: linear-gradient(135deg, var(--accent), var(--accent-dark));
}

[data-theme="dark"] .btn {
  background: linear-gradient(135deg, var(--accent), var(--accent-dark));
}

[data-theme="dark"] .info-table th {
  background: linear-gradient(135deg, var(--accent), var(--accent-dark));
}

/* ===== 打印样式 ===== */
@media print {
  .site-header,
  .hero,
  .breadcrumb,
  .mobile-nav,
  .theme-toggle,
  .menu-toggle,
  .search-box,
  #backTop,
  .site-footer {
    display: none !important;
  }
  
  body {
    background: white;
    color: black;
  }
  
  .card,
  .article-item,
  .faq-item,
  .howto-steps,
  .info-table {
    background: white;
    border: 1px solid #ddd;
    break-inside: avoid;
  }
  
  section {
    margin: 1rem 0;
  }
}

/* ===== 无障碍 ===== */
:focus-visible {
  outline: 3px solid var(--accent);
  outline-offset: 2px;
}

@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-center { text-align: center; }
.mt-1 { margin-top: 0.5rem; }
.mt-2 { margin-top: 1rem; }
.mt-3 { margin-top: 1.5rem; }
.mt-4 { margin-top: 2rem; }
.mb-1 { margin-bottom: 0.5rem; }
.mb-2 { margin-bottom: 1rem; }
.mb-3 { margin-bottom: 1.5rem; }
.mb-4 { margin-bottom: 2rem; }

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

.float-animation {
  animation: float 3s ease-in-out infinite;
}

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

.shimmer {
  background: linear-gradient(90deg, var(--bg-card) 25%, var(--bg-secondary) 50%, var(--bg-card) 75%);
  background-size: 1000px 100%;
  animation: shimmer 2s infinite linear;
}

/* 卡片hover增强 */
.card-hover-effect {
  position: relative;
  overflow: hidden;
}

.card-hover-effect::after {
  content: '';
  position: absolute;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background: radial-gradient(circle, rgba(255, 255, 255, 0.1) 0%, transparent 70%);
  opacity: 0;
  transition: opacity 0.3s ease;
  pointer-events: none;
}

.card-hover-effect:hover::after {
  opacity: 1;
}

/* 渐变边框效果 */
.gradient-border {
  border: 1px solid transparent;
  background-image: linear-gradient(var(--bg-card), var(--bg-card)), 
                    linear-gradient(135deg, var(--accent), var(--accent-dark));
  background-origin: border-box;
  background-clip: padding-box, border-box;
}

/* 毛玻璃卡片增强 */
.glass-card {
  background: var(--glass-bg);
  backdrop-filter: blur(20px) saturate(180%);
  -webkit-backdrop-filter: blur(20px) saturate(180%);
  border: 1px solid var(--glass-border);
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.1);
}
```