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

:root {
  --primary: #2563eb;
  --primary-dark: #1e40af;
  --accent: #f43f5e;
  --bg: #f8fafc;
  --bg-dark: #0b1120;
  --card-bg: #ffffff;
  --card-bg-dark: #1e293b;
  --text: #0f172a;
  --text-dark: #e2e8f0;
  --muted: #475569;
  --muted-dark: #94a3b8;
  --border: #e2e8f0;
  --border-dark: #334155;
  --shadow: 0 4px 12px rgba(0, 0, 0, 0.04);
  --shadow-hover: 0 8px 24px rgba(0, 0, 0, 0.12);
  --radius: 16px;
  --radius-sm: 12px;
  --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

body {
  font-family: system-ui, -apple-system, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, 'Noto Sans', sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.7;
  transition: background 0.3s, color 0.3s;
  overflow-x: hidden;
  min-height: 100vh;
}

body.dark {
  background: var(--bg-dark);
  color: var(--text-dark);
}

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

a {
  text-decoration: none;
  color: inherit;
}

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

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

/* ============ 导航栏 ============ */
.navbar {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(255, 255, 255, 0.85);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
  transition: background 0.3s, border-color 0.3s;
}

body.dark .navbar {
  background: rgba(15, 23, 42, 0.85);
  border-bottom-color: var(--border-dark);
}

.nav-wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
  gap: 16px;
}

.logo {
  display: flex;
  align-items: center;
  gap: 8px;
  font-weight: 700;
  font-size: 1.4rem;
  color: var(--primary-dark);
  transition: color 0.3s;
  white-space: nowrap;
}

body.dark .logo {
  color: #60a5fa;
}

.logo svg {
  flex-shrink: 0;
  animation: logoPulse 3s ease-in-out infinite;
}

@keyframes logoPulse {
  0%, 100% { transform: scale(1); }
  50% { transform: scale(1.05); }
}

.nav-links {
  display: flex;
  gap: 24px;
  align-items: center;
}

.nav-links a {
  color: #334155;
  font-weight: 500;
  transition: color 0.2s;
  position: relative;
  padding: 4px 0;
}

body.dark .nav-links a {
  color: #cbd5e1;
}

.nav-links a::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--primary);
  transition: width 0.3s;
}

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

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

.search-box {
  display: flex;
  align-items: center;
  gap: 4px;
  background: #f1f5f9;
  border-radius: 32px;
  padding: 4px 12px;
  transition: box-shadow 0.3s, background 0.3s;
}

body.dark .search-box {
  background: #1e293b;
}

.search-box:focus-within {
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.2);
}

.search-box input {
  border: none;
  background: transparent;
  padding: 6px 8px;
  outline: none;
  width: 140px;
  color: var(--text);
  font-size: 0.9rem;
  transition: width 0.3s;
}

body.dark .search-box input {
  color: #f1f5f9;
}

.search-box input::placeholder {
  color: #94a3b8;
}

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

.search-box button {
  background: var(--primary);
  color: white;
  border-radius: 20px;
  padding: 4px 14px;
  font-weight: 500;
  font-size: 0.85rem;
  transition: background 0.2s, transform 0.2s;
}

.search-box button:hover {
  background: var(--primary-dark);
  transform: scale(1.02);
}

.theme-toggle {
  border: 1px solid #cbd5e1;
  border-radius: 32px;
  padding: 6px 12px;
  font-size: 1rem;
  transition: all 0.3s;
  background: transparent;
}

body.dark .theme-toggle {
  border-color: var(--border-dark);
  color: var(--text-dark);
}

.theme-toggle:hover {
  background: rgba(37, 99, 235, 0.1);
  border-color: var(--primary);
}

.mobile-menu {
  display: none;
  font-size: 1.5rem;
  background: none;
  border: none;
  padding: 4px 8px;
  border-radius: 8px;
  transition: background 0.2s;
}

.mobile-menu:hover {
  background: rgba(0, 0, 0, 0.05);
}

body.dark .mobile-menu:hover {
  background: rgba(255, 255, 255, 0.1);
}

/* 移动菜单 */
.mobile-nav {
  display: none;
  position: fixed;
  inset: 0;
  background: #fff;
  z-index: 100;
  flex-direction: column;
  padding: 40px 24px;
  gap: 16px;
  transition: opacity 0.3s, visibility 0.3s;
}

body.dark .mobile-nav {
  background: var(--bg-dark);
}

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

.close-mobile {
  align-self: flex-end;
  font-size: 2rem;
  background: none;
  border: none;
  cursor: pointer;
  color: var(--text);
  transition: transform 0.3s;
}

.close-mobile:hover {
  transform: rotate(90deg);
}

.mobile-nav a {
  font-size: 1.2rem;
  padding: 12px 0;
  border-bottom: 1px solid var(--border);
  transition: color 0.2s, padding-left 0.3s;
}

body.dark .mobile-nav a {
  border-bottom-color: var(--border-dark);
}

.mobile-nav a:hover {
  color: var(--primary);
  padding-left: 8px;
}

/* ============ 面包屑 ============ */
.breadcrumb {
  padding: 16px 0;
  font-size: 0.9rem;
  color: #64748b;
}

.breadcrumb a {
  color: var(--primary);
  transition: color 0.2s;
}

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

body.dark .breadcrumb a {
  color: #60a5fa;
}

/* ============ Hero 区 ============ */
.hero {
  background: linear-gradient(145deg, #0f172a, #1e293b);
  color: white;
  padding: 56px 0;
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: -50%;
  right: -20%;
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(37, 99, 235, 0.3), transparent 70%);
  animation: heroGlow 8s ease-in-out infinite alternate;
}

@keyframes heroGlow {
  0% { opacity: 0.5; transform: scale(1); }
  100% { opacity: 0.8; transform: scale(1.2); }
}

.banner-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
  align-items: center;
  position: relative;
  z-index: 1;
}

.hero h1 {
  font-size: 2.5rem;
  line-height: 1.2;
  margin-bottom: 16px;
  background: linear-gradient(135deg, #fff, #94a3b8);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  animation: fadeInUp 0.8s ease-out;
}

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

.hero p {
  font-size: 1.1rem;
  opacity: 0.9;
  margin-bottom: 24px;
  max-width: 520px;
  animation: fadeInUp 0.8s ease-out 0.2s both;
}

.btn-group {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  animation: fadeInUp 0.8s ease-out 0.4s both;
}

.btn {
  background: var(--primary);
  color: white;
  padding: 12px 28px;
  border-radius: 48px;
  font-weight: 600;
  transition: all 0.3s;
  display: inline-block;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.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;
}

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

.btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(37, 99, 235, 0.3);
}

.btn-outline {
  background: transparent;
  border: 1px solid #94a3b8;
  color: white;
  backdrop-filter: blur(4px);
}

.btn-outline:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: white;
}

.stats {
  display: flex;
  gap: 32px;
  margin-top: 32px;
  flex-wrap: wrap;
  animation: fadeInUp 0.8s ease-out 0.6s both;
}

.stat-item {
  text-align: center;
}

.stat-item h3 {
  font-size: 2rem;
  font-weight: 700;
  color: #facc15;
  text-shadow: 0 2px 8px rgba(250, 204, 21, 0.3);
}

.stat-item span {
  opacity: 0.75;
  font-size: 0.9rem;
  display: block;
  margin-top: 4px;
}

.hero-visual {
  display: flex;
  justify-content: center;
  align-items: center;
  animation: fadeInUp 0.8s ease-out 0.3s both;
}

.hero-visual svg {
  border-radius: 20px;
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
  transition: transform 0.3s;
}

.hero-visual svg:hover {
  transform: scale(1.02) rotate(1deg);
}

/* ============ 通用 Section ============ */
.section {
  padding: 64px 0;
}

.section-title {
  font-size: 2rem;
  margin-bottom: 32px;
  border-left: 6px solid var(--primary);
  padding-left: 16px;
  position: relative;
  transition: color 0.3s;
}

.section-title::after {
  content: '';
  position: absolute;
  bottom: -8px;
  left: 16px;
  width: 40px;
  height: 3px;
  background: var(--primary);
  border-radius: 2px;
}

/* ============ 卡片网格 ============ */
.grid-3 {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 24px;
}

.card {
  background: var(--card-bg);
  border-radius: var(--radius);
  padding: 24px;
  box-shadow: var(--shadow);
  transition: all 0.3s;
  border: 1px solid transparent;
  position: relative;
  overflow: hidden;
}

body.dark .card {
  background: var(--card-bg-dark);
}

.card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 3px;
  background: linear-gradient(90deg, var(--primary), var(--accent));
  transform: scaleX(0);
  transition: transform 0.3s;
  transform-origin: left;
}

.card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-hover);
  border-color: rgba(37, 99, 235, 0.2);
}

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

.card h3 {
  font-size: 1.3rem;
  margin-bottom: 8px;
  display: flex;
  align-items: center;
  gap: 8px;
}

.card p {
  color: var(--muted);
  transition: color 0.3s;
}

body.dark .card p {
  color: var(--muted-dark);
}

.card h4 {
  margin-bottom: 8px;
  color: var(--primary);
}

/* ============ 文章卡片 ============ */
.article-card {
  background: var(--card-bg);
  border-radius: var(--radius);
  overflow: hidden;
  transition: all 0.3s;
  box-shadow: var(--shadow);
  border: 1px solid transparent;
}

body.dark .article-card {
  background: var(--card-bg-dark);
}

.article-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-hover);
  border-color: rgba(37, 99, 235, 0.3);
}

.article-card svg {
  width: 100%;
  height: 140px;
  background: linear-gradient(135deg, #1e3a8a, #3b82f6);
  transition: transform 0.5s;
}

.article-card:hover svg {
  transform: scale(1.05);
}

.article-content {
  padding: 20px;
}

.meta {
  font-size: 0.85rem;
  color: #64748b;
  display: flex;
  gap: 12px;
  margin-bottom: 8px;
}

.article-content h3 {
  font-size: 1.1rem;
  margin-bottom: 8px;
  transition: color 0.2s;
}

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

.article-content p {
  color: var(--muted);
  font-size: 0.9rem;
  margin-bottom: 12px;
}

body.dark .article-content p {
  color: var(--muted-dark);
}

.read-more {
  color: var(--primary);
  font-weight: 500;
  font-size: 0.9rem;
  transition: gap 0.3s;
  display: inline-flex;
  align-items: center;
  gap: 4px;
}

.read-more:hover {
  gap: 8px;
}

/* ============ FAQ ============ */
.faq-item {
  background: var(--card-bg);
  border-radius: var(--radius-sm);
  padding: 16px 20px;
  margin-bottom: 12px;
  border: 1px solid var(--border);
  transition: all 0.3s;
}

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

.faq-item:hover {
  border-color: var(--primary);
  box-shadow: 0 2px 8px rgba(37, 99, 235, 0.1);
}

.faq-question {
  display: flex;
  justify-content: space-between;
  align-items: center;
  cursor: pointer;
  font-weight: 600;
  font-size: 1.1rem;
  gap: 16px;
}

.faq-question span {
  font-size: 1.5rem;
  transition: transform 0.3s;
  color: var(--primary);
  flex-shrink: 0;
}

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

.faq-answer {
  display: none;
  padding-top: 12px;
  color: var(--muted);
  transition: all 0.3s;
  animation: fadeInUp 0.3s ease-out;
}

body.dark .faq-answer {
  color: #cbd5e1;
}

.faq-item.active .faq-answer {
  display: block;
}

/* ============ HowTo ============ */
.howto-card ol {
  padding-left: 20px;
  margin: 12px 0;
}

.howto-card ol li {
  margin-bottom: 8px;
  position: relative;
}

.howto-card ol li::marker {
  color: var(--primary);
  font-weight: bold;
}

.howto-card h3 {
  margin-top: 20px;
  color: var(--primary);
  font-size: 1.1rem;
}

.howto-card h3:first-child {
  margin-top: 0;
}

/* ============ 表格 ============ */
.info-table {
  width: 100%;
  border-collapse: collapse;
  margin: 24px 0;
  background: var(--card-bg);
  border-radius: var(--radius-sm);
  overflow: hidden;
  box-shadow: var(--shadow);
}

body.dark .info-table {
  background: var(--card-bg-dark);
}

.info-table th,
.info-table td {
  border: 1px solid var(--border);
  padding: 12px;
  text-align: left;
  transition: background 0.2s;
}

body.dark .info-table th,
body.dark .info-table td {
  border-color: var(--border-dark);
}

.info-table th {
  background: rgba(37, 99, 235, 0.05);
  font-weight: 600;
}

.info-table tr:hover td {
  background: rgba(37, 99, 235, 0.03);
}

/* ============ Footer ============ */
footer {
  background: #0f172a;
  color: #94a3b8;
  padding: 40px 0;
  margin-top: 48px;
  position: relative;
}

footer::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(37, 99, 235, 0.5), transparent);
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  justify-content: center;
  margin-top: 24px;
}

.footer-links a {
  color: #94a3b8;
  font-size: 0.9rem;
  transition: color 0.2s, transform 0.2s;
  position: relative;
}

.footer-links a::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 0;
  height: 1px;
  background: #60a5fa;
  transition: width 0.3s;
}

.footer-links a:hover {
  color: #60a5fa;
}

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

.footer-copyright {
  text-align: center;
  margin-top: 24px;
  font-size: 0.85rem;
}

/* ============ 返回顶部 ============ */
.back-top {
  position: fixed;
  bottom: 40px;
  right: 32px;
  background: #1e293b;
  color: white;
  width: 48px;
  height: 48px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  opacity: 0;
  visibility: hidden;
  transition: all 0.3s;
  z-index: 99;
  font-size: 1.2rem;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
}

body.dark .back-top {
  background: #334155;
}

.back-top.visible {
  opacity: 1;
  visibility: visible;
}

.back-top:hover {
  transform: translateY(-4px);
  background: var(--primary);
  box-shadow: 0 8px 24px rgba(37, 99, 235, 0.3);
}

/* ============ 滚动动画 ============ */
.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.6s, transform 0.6s;
}

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

/* ============ 图片懒加载 ============ */
.lazy {
  background: #e2e8f0;
  animation: shimmer 1.5s infinite;
}

@keyframes shimmer {
  0% { background-position: -400px 0; }
  100% { background-position: 400px 0; }
}

/* ============ 暗色模式调整 ============ */
body.dark .hero {
  background: linear-gradient(145deg, #0f172a, #1e293b);
}

body.dark .stat-item h3 {
  color: #facc15;
}

body.dark .breadcrumb {
  color: #64748b;
}

body.dark .breadcrumb a {
  color: #60a5fa;
}

/* ============ 响应式设计 ============ */
@media (max-width: 1024px) {
  .container {
    padding: 0 20px;
  }
  
  .hero h1 {
    font-size: 2.2rem;
  }
  
  .section-title {
    font-size: 1.8rem;
  }
}

@media (max-width: 768px) {
  .nav-links {
    display: none;
  }
  
  .mobile-menu {
    display: flex;
  }
  
  .search-box input {
    width: 80px;
  }
  
  .search-box input:focus {
    width: 100px;
  }
  
  .banner-grid {
    grid-template-columns: 1fr;
    text-align: center;
  }
  
  .hero h1 {
    font-size: 2rem;
  }
  
  .hero p {
    margin: 0 auto 24px;
  }
  
  .btn-group {
    justify-content: center;
  }
  
  .stats {
    justify-content: center;
    gap: 24px;
  }
  
  .hero-visual {
    margin-top: 32px;
  }
  
  .hero-visual svg {
    width: 240px;
    height: 180px;
  }
  
  .section {
    padding: 48px 0;
  }
  
  .section-title {
    font-size: 1.6rem;
  }
  
  .grid-3 {
    grid-template-columns: 1fr;
    gap: 16px;
  }
  
  .footer-links {
    gap: 12px;
  }
  
  .back-top {
    bottom: 24px;
    right: 20px;
    width: 40px;
    height: 40px;
    font-size: 1rem;
  }
  
  .mobile-nav {
    padding: 32px 20px;
  }
  
  .faq-question {
    font-size: 1rem;
  }
}

@media (max-width: 480px) {
  .container {
    padding: 0 16px;
  }
  
  .hero {
    padding: 40px 0;
  }
  
  .hero h1 {
    font-size: 1.8rem;
  }
  
  .hero p {
    font-size: 1rem;
  }
  
  .btn {
    padding: 10px 20px;
    font-size: 0.9rem;
  }
  
  .stat-item h3 {
    font-size: 1.5rem;
  }
  
  .section-title {
    font-size: 1.4rem;
    border-left-width: 4px;
    padding-left: 12px;
  }
  
  .card {
    padding: 20px;
  }
  
  .search-box {
    display: none;
  }
  
  .theme-toggle {
    padding: 4px 8px;
  }
  
  .info-table {
    font-size: 0.85rem;
  }
  
  .info-table th,
  .info-table td {
    padding: 8px;
  }
}

/* ============ 打印样式 ============ */
@media print {
  .navbar,
  .back-top,
  .theme-toggle,
  .mobile-menu,
  .mobile-nav,
  .search-box {
    display: none !important;
  }
  
  body {
    background: white;
    color: black;
  }
  
  .hero {
    background: white;
    color: black;
  }
  
  .card,
  .article-card,
  .faq-item {
    box-shadow: none;
    border: 1px solid #ccc;
  }
}

/* ============ 无障碍 ============ */
@media (prefers-reduced-motion: reduce) {
  * {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}

::selection {
  background: rgba(37, 99, 235, 0.2);
  color: var(--primary);
}

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

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

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

::-webkit-scrollbar-thumb {
  background: #cbd5e1;
  border-radius: 5px;
  transition: background 0.3s;
}

body.dark ::-webkit-scrollbar-thumb {
  background: #334155;
}

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

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

/* ============ 工具类 ============ */
.text-center {
  text-align: center;
}

.mt-2 { margin-top: 8px; }
.mt-4 { margin-top: 16px; }
.mt-8 { margin-top: 32px; }
.mb-2 { margin-bottom: 8px; }
.mb-4 { margin-bottom: 16px; }
.mb-8 { margin-bottom: 32px; }

/* ============ 品牌专区 ============ */
.brand-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: rgba(37, 99, 235, 0.1);
  color: var(--primary);
  padding: 4px 12px;
  border-radius: 20px;
  font-size: 0.85rem;
  font-weight: 500;
}

body.dark .brand-badge {
  background: rgba(37, 99, 235, 0.2);
  color: #60a5fa;
}

/* ============ 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 pulse-ring {
  0% { box-shadow: 0 0 0 0 rgba(37, 99, 235, 0.4); }
  70% { box-shadow: 0 0 0 10px rgba(37, 99, 235, 0); }
  100% { box-shadow: 0 0 0 0 rgba(37, 99, 235, 0); }
}

.pulse-animation {
  animation: pulse-ring 2s infinite;
}

/* ============ 悬停特效 ============ */
.hover-lift {
  transition: transform 0.3s, box-shadow 0.3s;
}

.hover-lift:hover {
  transform: translateY(-5px);
  box-shadow: 0 12px 24px rgba(0, 0, 0, 0.1);
}

.hover-grow {
  transition: transform 0.3s;
}

.hover-grow:hover {
  transform: scale(1.03);
}

/* ============ 渐变边框 ============ */
.gradient-border {
  border: 2px solid transparent;
  background: linear-gradient(var(--card-bg), var(--card-bg)) padding-box,
              linear-gradient(135deg, var(--primary), var(--accent)) border-box;
}

body.dark .gradient-border {
  background: linear-gradient(var(--card-bg-dark), var(--card-bg-dark)) padding-box,
              linear-gradient(135deg, var(--primary), var(--accent)) border-box;
}

/* ============ 毛玻璃效果 ============ */
.glass {
  background: rgba(255, 255, 255, 0.7);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid rgba(255, 255, 255, 0.2);
}

body.dark .glass {
  background: rgba(15, 23, 42, 0.7);
  border-color: rgba(255, 255, 255, 0.1);
}

/* ============ 分隔线 ============ */
.divider {
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--border), transparent);
  margin: 32px 0;
}

body.dark .divider {
  background: linear-gradient(90deg, transparent, var(--border-dark), transparent);
}

/* ============ 标签 ============ */
.tag {
  display: inline-block;
  padding: 2px 8px;
  border-radius: 12px;
  font-size: 0.75rem;
  font-weight: 500;
  background: rgba(37, 99, 235, 0.1);
  color: var(--primary);
  margin-right: 4px;
  transition: all 0.2s;
}

body.dark .tag {
  background: rgba(37, 99, 235, 0.2);
  color: #60a5fa;
}

.tag:hover {
  background: var(--primary);
  color: white;
}

/* ============ 文章列表 ============ */
.article-list-item {
  display: flex;
  gap: 16px;
  align-items: flex-start;
  padding: 16px 0;
  border-bottom: 1px solid var(--border);
  transition: padding-left 0.3s;
}

body.dark .article-list-item {
  border-bottom-color: var(--border-dark);
}

.article-list-item:hover {
  padding-left: 8px;
}

.article-list-item .date {
  flex-shrink: 0;
  font-size: 0.85rem;
  color: #64748b;
  min-width: 80px;
}

.article-list-item h4 {
  font-size: 1rem;
  margin-bottom: 4px;
  transition: color 0.2s;
}

.article-list-item:hover h4 {
  color: var(--primary);
}

/* ============ 统计卡片 ============ */
.stat-card {
  text-align: center;
  padding: 32px 24px;
  background: linear-gradient(135deg, rgba(37, 99, 235, 0.05), rgba(244, 63, 94, 0.05));
  border-radius: var(--radius);
  transition: all 0.3s;
}

.stat-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-hover);
}

.stat-card .number {
  font-size: 2.5rem;
  font-weight: 700;
  background: linear-gradient(135deg, var(--primary), var(--accent));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.stat-card .label {
  margin-top: 8px;
  color: var(--muted);
  font-size: 0.9rem;
}

body.dark .stat-card .label {
  color: var(--muted-dark);
}

/* ============ 联系卡片 ============ */
.contact-card {
  position: relative;
  overflow: hidden;
}

.contact-card::after {
  content: '';
  position: absolute;
  bottom: -20px;
  right: -20px;
  width: 80px;
  height: 80px;
  background: radial-gradient(circle, rgba(37, 99, 235, 0.1), transparent 70%);
  border-radius: 50%;
}

/* ============ 版权区域 ============ */
.copyright {
  border-top: 1px solid rgba(148, 163, 184, 0.2);
  padding-top: 24px;
  margin-top: 32px;
}

/* ============ 响应式细节优化 ============ */
@media (max-width: 600px) {
  .stats {
    flex-direction: column;
    align-items: center;
    gap: 16px;
  }
  
  .article-list-item {
    flex-direction: column;
    gap: 8px;
  }
  
  .article-list-item .date {
    min-width: auto;
  }
  
  .footer-links {
    flex-direction: column;
    align-items: center;
    text-align: center;
  }
}

/* ============ 暗色模式下的文字优化 ============ */
body.dark .hero h1 {
  background: linear-gradient(135deg, #e2e8f0, #94a3b8);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

body.dark .section-title {
  color: var(--text-dark);
}

/* ============ 高对比度模式 ============ */
@media (prefers-contrast: high) {
  :root {
    --primary: #1a4fc4;
    --muted: #2d3748;
    --border: #4a5568;
  }
  
  .btn {
    border: 2px solid #000;
  }
  
  .card {
    border: 2px solid var(--border);
  }
}

/* ============ 最终优化 ============ */
* {
  -webkit-tap-highlight-color: transparent;
}

button {
  -webkit-user-select: none;
  user-select: none;
}

input {
  -webkit-appearance: none;
  appearance: none;
}

/* 确保所有交互元素都有足够的点击区域 */
button,
a {
  min-height: 24px;
  min-width: 24px;
}

/* 防止移动端横向滚动 */
body {
  overflow-x: hidden;
  width: 100%;
}

/* 确保SVG图标平滑渲染 */
svg {
  shape-rendering: geometricPrecision;
  text-rendering: optimizeLegibility;
}

/* 最终暗色模式优化 */
body.dark .article-card svg {
  opacity: 0.9;
}

body.dark .hero-visual svg {
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.5);
}

/* 确保所有过渡平滑 */
* {
  transition-timing-function: cubic-bezier(0.4, 0, 0.2, 1);
}
```