/**
 * 镓奥科技主题主样式文件
 * 基于高保真原型设计
 * 
 * @package GaaoTech
 * @since 1.0.0
 */

/* ===== CSS变量定义 ===== */
:root {
  /* 亮色主题 */
  --bg-primary: #ffffff;
  --bg-secondary: #f8fafc;
  --bg-card: #ffffff;
  --bg-hover: #f1f5f9;
  --text-primary: #1e293b;
  --text-secondary: #64748b;
  --text-muted: #94a3b8;
  --border-color: #e2e8f0;
  --accent-color: #3b82f6;
  --success-color: #10b981;
  --warning-color: #f59e0b;
  --error-color: #ef4444;
  
  /* 间距 */
  --spacing-xs: 0.5rem;
  --spacing-sm: 0.75rem;
  --spacing-md: 1rem;
  --spacing-lg: 1.5rem;
  --spacing-xl: 2rem;
  --spacing-2xl: 3rem;
  --spacing-3xl: 4rem;
  
  /* 圆角 */
  --radius-sm: 0.25rem;
  --radius-md: 0.375rem;
  --radius-lg: 0.5rem;
  --radius-xl: 0.75rem;
  
  /* 阴影 */
  --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
  --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
  --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
  --shadow-xl: 0 20px 25px -5px rgb(0 0 0 / 0.1), 0 8px 10px -6px rgb(0 0 0 / 0.1);
}

/* 暗色主题 */
[data-theme="dark"] {
  --bg-primary: #0f172a;
  --bg-secondary: #1e293b;
  --bg-card: #334155;
  --bg-hover: #475569;
  --text-primary: #f8fafc;
  --text-secondary: #cbd5e1;
  --text-muted: #94a3b8;
  --border-color: #475569;
  --accent-color: #3b82f6;
  --success-color: #10b981;
  --warning-color: #f59e0b;
  --error-color: #ef4444;
  
  /* 暗色主题阴影 */
  --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.3);
  --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.3), 0 2px 4px -2px rgb(0 0 0 / 0.3);
  --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.3), 0 4px 6px -4px rgb(0 0 0 / 0.3);
  --shadow-xl: 0 20px 25px -5px rgb(0 0 0 / 0.3), 0 8px 10px -6px rgb(0 0 0 / 0.3);
}

/* ===== 基础样式重置 ===== */
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}



html {
  font-size: 16px;
  line-height: 1.6;
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
  -moz-text-size-adjust: 100%;
  text-size-adjust: 100%;
  overflow-x: hidden;
}

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  line-height: 1.6;
  color: var(--text-primary);
  background-color: var(--bg-primary);
  transition: background-color 0.3s ease, color 0.3s ease;
  overflow-x: hidden;
  max-width: 100vw;
}

/* ===== 解决方案页面样式 ===== */
.solution-card {
  background-color: white;
}

/* ===== 解决方案详情页样式 ===== */
.solution-header {
  background: linear-gradient(135deg, var(--primary-600) 0%, var(--secondary-600) 100%);
  padding: var(--spacing-2xl) 0;
  border-bottom: 1px solid var(--border-color);
}

/* 面包屑导航样式 */
.breadcrumb {
  margin-bottom: 2rem;
}

.breadcrumb a {
  color: rgba(255, 255, 255, 0.8);
  text-decoration: none;
  transition: color 0.2s ease;
}

.breadcrumb a:hover {
  color: white;
}

/* 图片容器样式 */
.image-container {
  position: relative;
  border-radius: 1rem;
  overflow: hidden;
  box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
  background-color: white;
  padding: 1rem;
}

.solution-image {
  width: 100%;
  max-width: 400px;
  height: 300px;
  object-fit: cover;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
}

.solution-icon {
  width: 80px;
  height: 80px;
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2rem;
  color: white;
  margin-bottom: var(--spacing-lg);
}

.solution-info {
  flex: 1;
}

.solution-title {
  font-size: 2.5rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: var(--spacing-md);
  line-height: 1.2;
}

.solution-excerpt {
  font-size: 1.125rem;
  color: var(--text-secondary);
  margin-bottom: var(--spacing-lg);
  line-height: 1.6;
}

.solution-meta {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-lg);
  margin-bottom: var(--spacing-xl);
}

.solution-categories,
.solution-tags {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-sm);
}

.solution-category,
.solution-tag {
  display: inline-block;
  padding: var(--spacing-xs) var(--spacing-md);
  background-color: var(--bg-secondary);
  color: var(--text-secondary);
  border-radius: var(--radius-md);
  font-size: 0.875rem;
  text-decoration: none;
  transition: all 0.2s ease;
}

.solution-category:hover,
.solution-tag:hover {
  background-color: var(--accent-color);
  color: white;
}

.solution-actions {
  display: flex;
  gap: var(--spacing-md);
  flex-wrap: wrap;
}

.solution-nav {
  background-color: var(--bg-card);
  border-bottom: 1px solid var(--border-color);
  position: sticky;
  top: 0;
  z-index: 100;
}

.solution-nav-list {
  display: flex;
  list-style: none;
  margin: 0;
  padding: 0;
  overflow-x: auto;
}

.solution-nav-item {
  flex-shrink: 0;
}

.solution-nav-link {
  display: block;
  padding: var(--spacing-lg) var(--spacing-xl);
  color: var(--text-secondary);
  text-decoration: none;
  font-weight: 500;
  border-bottom: 3px solid transparent;
  transition: all 0.2s ease;
  white-space: nowrap;
}

.solution-nav-link:hover,
.solution-nav-link.active {
  color: var(--accent-color);
  border-bottom-color: var(--accent-color);
  background-color: var(--bg-hover);
}

.solution-content {
  padding: var(--spacing-2xl) 0;
}

.solution-section {
  margin-bottom: var(--spacing-3xl);
  padding: var(--spacing-2xl);
  background-color: var(--bg-card);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--border-color);
}

.solution-section-title {
  font-size: 1.875rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: var(--spacing-lg);
  padding-bottom: var(--spacing-md);
  border-bottom: 2px solid var(--border-color);
}

.solution-section-content {
  color: var(--text-secondary);
  line-height: 1.7;
}

.solution-section-content h3 {
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--text-primary);
  margin: var(--spacing-lg) 0 var(--spacing-md) 0;
}

.solution-section-content h4 {
  font-size: 1.125rem;
  font-weight: 600;
  color: var(--text-primary);
  margin: var(--spacing-md) 0 var(--spacing-sm) 0;
}

.solution-section-content p {
  margin-bottom: var(--spacing-md);
}

.solution-section-content ul,
.solution-section-content ol {
  margin: var(--spacing-md) 0;
  padding-left: var(--spacing-xl);
}

.solution-section-content li {
  margin-bottom: var(--spacing-sm);
}

.solution-benefits-list {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--spacing-lg);
  margin-top: var(--spacing-lg);
}

.solution-benefit-item {
  display: flex;
  align-items: flex-start;
  gap: var(--spacing-md);
  padding: var(--spacing-lg);
  background-color: var(--bg-secondary);
  border-radius: var(--radius-md);
  border-left: 4px solid var(--accent-color);
}

.solution-benefit-icon {
  width: 24px;
  height: 24px;
  color: var(--accent-color);
  flex-shrink: 0;
  margin-top: 2px;
}

.solution-benefit-text {
  color: var(--text-secondary);
  line-height: 1.6;
}

.solution-applications-list {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--spacing-md);
  margin-top: var(--spacing-lg);
}

.solution-application-item {
  padding: var(--spacing-lg);
  background-color: var(--bg-secondary);
  border-radius: var(--radius-md);
  text-align: center;
  transition: all 0.2s ease;
}

.solution-application-item:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.solution-related {
  margin-top: var(--spacing-3xl);
}

.solution-related-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--spacing-lg);
  margin-top: var(--spacing-lg);
}

.solution-cta {
  background: linear-gradient(135deg, var(--accent-color) 0%, #2563eb 100%);
  color: white;
  padding: var(--spacing-3xl) 0;
  text-align: center;
  margin-top: var(--spacing-3xl);
}

.solution-cta-title {
  font-size: 2rem;
  font-weight: 700;
  margin-bottom: var(--spacing-md);
}

.solution-cta-description {
  font-size: 1.125rem;
  margin-bottom: var(--spacing-xl);
  opacity: 0.9;
}

/* 解决方案文章样式 */
.solution-article {
  margin-bottom: var(--spacing-2xl);
}

.solution-description {
  margin-bottom: var(--spacing-2xl);
}

.solution-overview {
  scroll-margin-top: 6rem;
}

.solution-benefits {
  scroll-margin-top: 6rem;
}

/* 导航链接样式 */
.nav-link {
  white-space: nowrap;
  padding: 0.5rem 0.75rem;
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--text-secondary);
  border-bottom: 2px solid transparent;
  transition: all 0.2s ease;
}

.nav-link:hover,
.nav-link.active {
  color: white;
  background-color: var(--accent-color);
  border-radius: var(--radius-md);
  border-bottom-color: transparent;
}

/* 深色模式下的导航链接 */
.dark .nav-link {
  color: var(--text-secondary-dark);
}

.dark .nav-link:hover,
.dark .nav-link.active {
  color: white;
  background-color: var(--accent-color);
  border-radius: var(--radius-md);
  border-bottom-color: transparent;
}

/* Prose 样式增强 */
.prose {
  max-width: none;
}

.prose h2 {
  font-size: 1.875rem;
  font-weight: 700;
  margin-bottom: 1.5rem;
  color: var(--text-primary);
}

.prose h3 {
  font-size: 1.5rem;
  font-weight: 600;
  margin-bottom: 1rem;
  color: var(--text-primary);
}

.prose p {
  margin-bottom: 1rem;
  line-height: 1.7;
  color: var(--text-secondary);
}

/* 深色模式下的 prose */
.dark .prose h2,
.dark .prose h3 {
  color: white;
}

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

/* 渐变背景样式 */
.bg-gradient-to-r {
  background-image: linear-gradient(to right, var(--tw-gradient-stops));
}

/* 渐变起始颜色 */
.from-blue-50 {
  --tw-gradient-from: #eff6ff;
  --tw-gradient-stops: var(--tw-gradient-from), var(--tw-gradient-to, rgb(239 246 255 / 0));
}

.from-green-50 {
  --tw-gradient-from: #f0fdf4;
  --tw-gradient-stops: var(--tw-gradient-from), var(--tw-gradient-to, rgb(240 253 244 / 0));
}

.from-primary-600 {
  --tw-gradient-from: var(--primary-600);
  --tw-gradient-stops: var(--tw-gradient-from), var(--tw-gradient-to, rgb(37 99 235 / 0));
}

/* 渐变结束颜色 */
.to-indigo-50 {
  --tw-gradient-to: #eef2ff;
}

.to-emerald-50 {
  --tw-gradient-to: #ecfdf5;
}

.to-secondary-600 {
  --tw-gradient-to: var(--secondary-600);
}

/* 深色模式下的渐变背景 */
.dark .from-gray-800 {
  --tw-gradient-from: #1f2937;
  --tw-gradient-stops: var(--tw-gradient-from), var(--tw-gradient-to, rgb(31 41 55 / 0));
}

.dark .to-gray-700 {
  --tw-gradient-to: #374151;
}

/* 特殊背景样式 */
.bg-blue-50 {
  background-color: #eff6ff;
}

.bg-green-50 {
  background-color: #f0fdf4;
}

.dark .bg-gray-800 {
  background-color: #1f2937;
}

.dark .bg-gray-700 {
  background-color: #374151;
}

/* 圆角样式 */
.rounded-2xl {
  border-radius: 1rem;
}

.rounded-xl {
  border-radius: 0.75rem;
}

.rounded-lg {
  border-radius: 0.5rem;
}

.rounded-full {
  border-radius: 9999px;
}

/* 阴影样式 */
.shadow-lg {
  box-shadow: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
}

.shadow-xl {
  box-shadow: 0 20px 25px -5px rgb(0 0 0 / 0.1), 0 8px 10px -6px rgb(0 0 0 / 0.1);
}

.shadow-2xl {
  box-shadow: 0 25px 50px -12px rgb(0 0 0 / 0.25);
}

.hover\:shadow-xl:hover {
  box-shadow: 0 20px 25px -5px rgb(0 0 0 / 0.1), 0 8px 10px -6px rgb(0 0 0 / 0.1);
}

.hover\:shadow-2xl:hover {
  box-shadow: 0 25px 50px -12px rgb(0 0 0 / 0.25);
}

/* 过渡效果 */
.transition-all {
  transition-property: all;
  transition-timing-function: cubic-bezier(0.4, 0, 0.2, 1);
  transition-duration: 150ms;
}

.duration-300 {
  transition-duration: 300ms;
}

.duration-200 {
  transition-duration: 200ms;
}

.ease-in-out {
  transition-timing-function: cubic-bezier(0.4, 0, 0.2, 1);
}

/* 变换效果 */
.transform {
  transform: translate(var(--tw-translate-x), var(--tw-translate-y)) rotate(var(--tw-rotate)) skewX(var(--tw-skew-x)) skewY(var(--tw-skew-y)) scaleX(var(--tw-scale-x)) scaleY(var(--tw-scale-y));
}

.hover\:scale-105:hover {
  --tw-scale-x: 1.05;
  --tw-scale-y: 1.05;
  transform: translate(var(--tw-translate-x), var(--tw-translate-y)) rotate(var(--tw-rotate)) skewX(var(--tw-skew-x)) skewY(var(--tw-skew-y)) scaleX(var(--tw-scale-x)) scaleY(var(--tw-scale-y));
}

.hover\:scale-110:hover {
  --tw-scale-x: 1.1;
  --tw-scale-y: 1.1;
  transform: translate(var(--tw-translate-x), var(--tw-translate-y)) rotate(var(--tw-rotate)) skewX(var(--tw-skew-x)) skewY(var(--tw-skew-y)) scaleX(var(--tw-scale-x)) scaleY(var(--tw-scale-y));
}

/* 滚动边距 */
.scroll-mt-24 {
  scroll-margin-top: 6rem;
}

.scroll-margin-top {
  scroll-margin-top: 6rem;
}

/* 背景透明度 */
.bg-opacity-20 {
  --tw-bg-opacity: 0.2;
}

.bg-opacity-30 {
  --tw-bg-opacity: 0.3;
}

.bg-opacity-50 {
  --tw-bg-opacity: 0.5;
}

/* 透明度 */
.opacity-80 {
  opacity: 0.8;
}

.opacity-90 {
  opacity: 0.9;
}

/* 按钮和链接样式 */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.75rem 2rem;
  font-weight: 600;
  border-radius: 0.5rem;
  transition: all 0.2s ease;
  text-decoration: none;
  border: none;
  cursor: pointer;
}

.btn-primary {
  background-color: var(--primary-600);
  color: white;
}

.btn-primary:hover {
  background-color: var(--primary-700);
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}

.btn-secondary {
  background-color: white;
  color: var(--primary-600);
  border: 1px solid var(--primary-600);
}

.btn-secondary:hover {
  background-color: var(--primary-50);
}

/* 悬停颜色变化 */
.hover\:bg-gray-100:hover {
  background-color: #f3f4f6;
}

.hover\:bg-primary-700:hover {
  background-color: var(--primary-700);
}

/* 过渡颜色 */
.transition-colors {
  transition-property: color, background-color, border-color, text-decoration-color, fill, stroke;
  transition-timing-function: cubic-bezier(0.4, 0, 0.2, 1);
  transition-duration: 150ms;
}

/* 行高 */
.leading-relaxed {
  line-height: 1.625;
}

/* 解决方案卡片样式 */
.solution-card {
  background-color: var(--bg-card);
  padding: 2rem;
  border-radius: 1.5rem;
  box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
  border: 1px solid var(--border-color);
  transition: all 0.5s ease;
}

.solution-card:hover {
  box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.4);
  transform: translateY(-0.5rem);
}

/* 响应式设计 */
@media (max-width: 768px) {
  .solution-header {
    padding: var(--spacing-xl) 0;
  }
  
  .solution-title {
    font-size: 2rem;
  }
  
  .solution-meta {
    flex-direction: column;
    gap: var(--spacing-md);
  }
  
  .solution-actions {
    justify-content: center;
  }
  
  .solution-nav-list {
    justify-content: flex-start;
  }
  
  .solution-nav-link {
    padding: var(--spacing-md) var(--spacing-lg);
  }
  
  .solution-section {
    padding: var(--spacing-lg);
  }
  
  .solution-section-title {
    font-size: 1.5rem;
  }
  
  .solution-benefits-list,
  .solution-applications-list {
    grid-template-columns: 1fr;
  }
  
  .solution-related-grid {
    grid-template-columns: 1fr;
  }
  
  .solution-cta-title {
    font-size: 1.5rem;
  }
}

.dark .solution-card {
  background-color: #1f2937;
  border-color: #374151;
}

.solution-detail {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.6s ease-out, transform 0.6s ease-out;
}

.solution-detail.animate-fade-in {
  opacity: 1;
  transform: translateY(0);
}

.animate-fade-in-left {
  animation: fadeInLeft 0.6s ease-out;
}

.animate-fade-in-right {
  animation: fadeInRight 0.6s ease-out;
}

@keyframes fadeInLeft {
  from {
    opacity: 0;
    transform: translateX(-30px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

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

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

.animate-fade-in {
  animation: fadeIn 0.6s ease-out;
}

.line-clamp-3 {
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
  line-clamp: 3;
}

/* ===== 自定义滚动条 ===== */
::-webkit-scrollbar {
  width: 8px;
  height: 8px;
}

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

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

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

/* Firefox */
* {
  scrollbar-width: thin;
  scrollbar-color: var(--border-color) var(--bg-secondary);
}

/* ===== 通用组件样式 ===== */

/* 按钮样式 */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.5rem 1rem;
  border-radius: 0.375rem;
  font-weight: 500;
  text-decoration: none;
  transition: all 0.2s ease;
  cursor: pointer;
  border: none;
  outline: none;
  white-space: nowrap;
  user-select: none;
}

.btn:focus {
  outline: 2px solid transparent;
  outline-offset: 2px;
  box-shadow: 0 0 0 2px var(--accent-color);
}

.btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

/* 主要按钮 */
.btn-primary {
  background-color: var(--accent-color);
  color: white;
}

.btn-primary:hover:not(:disabled) {
  background-color: #2563eb;
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}

/* 次要按钮 */
.btn-secondary {
  background-color: var(--bg-card);
  color: var(--text-primary);
  border: 1px solid var(--border-color);
}

.btn-secondary:hover:not(:disabled) {
  background-color: var(--bg-secondary);
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}

/* 轮廓按钮 */
.btn-outline {
  background-color: transparent;
  color: var(--accent-color);
  border: 1px solid var(--accent-color);
}

.btn-outline:hover:not(:disabled) {
  background-color: var(--accent-color);
  color: white;
}

/* 大尺寸按钮 */
.btn-lg {
  padding: var(--spacing-md) var(--spacing-xl);
  font-size: 1rem;
  line-height: 1.5rem;
}

/* 小尺寸按钮 */
.btn-sm {
  padding: var(--spacing-xs) var(--spacing-md);
  font-size: 0.75rem;
  line-height: 1rem;
}

/* 卡片样式 */
.card {
  background-color: var(--bg-card);
  border-radius: 0.5rem;
  padding: 1.5rem;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--border-color);
  transition: all 0.3s ease;
  overflow: hidden;
}

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

.card-header {
  margin-bottom: 1rem;
}

.card-title {
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 0.5rem;
}

.card-description {
  color: var(--text-secondary);
  font-size: 0.875rem;
}

.card-body {
  padding: 1.5rem;
}

.card-footer {
  padding: 1.5rem;
  border-top: 1px solid var(--border-color);
  background-color: var(--bg-secondary);
}

/* 容器样式 */
.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--spacing-lg);
  overflow-x: hidden;
  box-sizing: border-box;
}

.container-fluid {
  width: 100%;
  padding: 0 var(--spacing-lg);
  overflow-x: hidden;
  box-sizing: border-box;
}

/* 网格系统 */
.grid {
  display: grid;
  gap: var(--spacing-lg);
}

.grid-cols-1 { grid-template-columns: repeat(1, minmax(0, 1fr)); }
.grid-cols-2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.grid-cols-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.grid-cols-4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }

/* 响应式网格 */
@media (min-width: 768px) {
  .md\:grid-cols-2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .md\:grid-cols-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .md\:grid-cols-4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }
}

@media (min-width: 1024px) {
  .lg\:grid-cols-2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .lg\:grid-cols-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .lg\:grid-cols-4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }
}

/* Flexbox 工具类 */
.flex { display: flex; }
.flex-col { flex-direction: column; }
.flex-row { flex-direction: row; }
.flex-wrap { flex-wrap: wrap; }
.items-center { align-items: center; }
.items-start { align-items: flex-start; }
.items-end { align-items: flex-end; }
.justify-center { justify-content: center; }
.justify-between { justify-content: space-between; }
.justify-start { justify-content: flex-start; }
.justify-end { justify-content: flex-end; }

/* 响应式Flex */
@media (min-width: 640px) {
  .sm\:flex-row { flex-direction: row; }
  .sm\:flex-col { flex-direction: column; }
  .sm\:items-center { align-items: center; }
  .sm\:justify-center { justify-content: center; }
}

/* 间距工具类 */
.space-x-2 > * + * { margin-left: var(--spacing-xs); }
.space-x-4 > * + * { margin-left: var(--spacing-sm); }
.space-x-6 > * + * { margin-left: var(--spacing-md); }
.space-x-8 > * + * { margin-left: var(--spacing-lg); }

.space-y-2 > * + * { margin-top: var(--spacing-xs); }
.space-y-4 > * + * { margin-top: var(--spacing-sm); }
.space-y-6 > * + * { margin-top: var(--spacing-md); }
.space-y-8 > * + * { margin-top: var(--spacing-lg); }

/* 文字样式 */
.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }

.text-xs { font-size: 0.75rem; line-height: 1rem; }
.text-sm { font-size: 0.875rem; line-height: 1.25rem; }
.text-base { font-size: 1rem; line-height: 1.5rem; }
.text-lg { font-size: 1.125rem; line-height: 1.75rem; }
.text-xl { font-size: 1.25rem; line-height: 1.75rem; }
.text-2xl { font-size: 1.5rem; line-height: 2rem; }
.text-3xl { font-size: 1.875rem; line-height: 2.25rem; }
.text-4xl { font-size: 2.25rem; line-height: 2.5rem; }
.text-5xl { font-size: 3rem; line-height: 1; }
.text-6xl { font-size: 3.75rem; line-height: 1; }
.text-7xl { font-size: 4.5rem; line-height: 1; }

.font-light { font-weight: 300; }
.font-normal { font-weight: 400; }
.font-medium { font-weight: 500; }
.font-semibold { font-weight: 600; }
.font-bold { font-weight: 700; }

/* 响应式文本大小 */
@media (min-width: 768px) {
  .md\:text-2xl { font-size: 1.5rem; line-height: 2rem; }
  .md\:text-6xl { font-size: 3.75rem; line-height: 1; }
}

@media (min-width: 1024px) {
  .lg\:text-7xl { font-size: 4.5rem; line-height: 1; }
}

/* 颜色工具类 */
.text-primary { color: var(--text-primary); }
.text-secondary { color: var(--text-secondary); }
.text-tertiary { color: var(--text-muted); }

.bg-primary { background-color: var(--bg-primary); }
.bg-secondary { background-color: var(--bg-secondary); }
.bg-tertiary { background-color: var(--bg-card); }

/* Primary Colors */
.text-primary-600 { color: #2563eb; }
.text-primary-700 { color: #1d4ed8; }
.text-primary-400 { color: #60a5fa; }
.bg-primary-600 { background-color: #2563eb; }
.bg-primary-700 { background-color: #1d4ed8; }
.bg-primary-500 { background-color: #3b82f6; }
.hover\:text-primary-600:hover { color: #2563eb; }
.hover\:text-primary-700:hover { color: #1d4ed8; }
.hover\:bg-primary-700:hover { background-color: #1d4ed8; }

/* Secondary Colors */
.text-secondary-600 { color: #7c3aed; }
.text-secondary-700 { color: #6d28d9; }
.bg-secondary-600 { background-color: #7c3aed; }
.bg-secondary-700 { background-color: #6d28d9; }

/* Gray Colors */
.text-gray-900 { color: #111827; }
.text-gray-800 { color: #1f2937; }
.text-gray-700 { color: #374151; }
.text-gray-600 { color: #4b5563; }
.text-gray-500 { color: #6b7280; }
.text-gray-400 { color: #9ca3af; }
.text-gray-300 { color: #d1d5db; }
.text-gray-200 { color: #e5e7eb; }
.text-gray-100 { color: #f3f4f6; }
.text-gray-50 { color: #f9fafb; }
.bg-gray-900 { background-color: #111827; }
.bg-gray-800 { background-color: #1f2937; }
.bg-gray-700 { background-color: #374151; }
.bg-gray-600 { background-color: #4b5563; }
.bg-gray-300 { background-color: #d1d5db; }
.bg-gray-200 { background-color: #e5e7eb; }
.bg-gray-100 { background-color: #f3f4f6; }
.bg-gray-50 { background-color: #f9fafb; }
.border-gray-200 { border-color: #e5e7eb; }
.border-gray-700 { border-color: #374151; }

/* White/Black */
.text-white { color: #ffffff; }
.text-black { color: #000000; }
.bg-white { background-color: #ffffff; }
.bg-black { background-color: #000000; }

/* Font Awesome 图标通过CDN加载 */

/* Blue Colors */
.text-blue-400 { color: #60a5fa; }
.text-blue-500 { color: #3b82f6; }
.bg-blue-500 { background-color: #3b82f6; }
.bg-blue-600 { background-color: #2563eb; }

/* Yellow Colors */
.text-yellow-500 { color: #eab308; }

/* Accent Colors */
.text-accent { color: #3b82f6; }
.bg-accent { background-color: #3b82f6; }

/* 边距和内边距 */
.p-0 { padding: 0; }
.p-2 { padding: var(--spacing-xs); }
.p-4 { padding: var(--spacing-sm); }
.p-6 { padding: var(--spacing-md); }
.p-8 { padding: var(--spacing-lg); }
.p-12 { padding: var(--spacing-xl); }
.p-16 { padding: var(--spacing-2xl); }

.m-0 { margin: 0; }
.m-2 { margin: var(--spacing-xs); }
.m-4 { margin: var(--spacing-sm); }
.m-6 { margin: var(--spacing-md); }
.m-8 { margin: var(--spacing-lg); }
.m-12 { margin: var(--spacing-xl); }
.m-16 { margin: var(--spacing-2xl); }

/* Tailwind CSS 兼容类 */
/* 定位 */
.relative { position: relative; }
.absolute { position: absolute; }
.fixed { position: fixed; }
.sticky { position: sticky; }

/* 层级 */
.z-0 { z-index: 0; }
.z-10 { z-index: 10; }
.z-20 { z-index: 20; }
.z-30 { z-index: 30; }
.z-40 { z-index: 40; }
.z-50 { z-index: 50; }

/* 定位偏移 */
.inset-0 { top: 0; right: 0; bottom: 0; left: 0; }
.top-0 { top: 0; }
.right-0 { right: 0; }
.bottom-0 { bottom: 0; }
.left-0 { left: 0; }
.bottom-8 { bottom: 2rem; }
.left-1\/2 { left: 50%; }

/* 变换 */
.transform { transform: var(--tw-transform); }
.-translate-x-1\/2 { transform: translateX(-50%); }
.translateY\(-2px\) { transform: translateY(-2px); }

/* 尺寸 */
.w-full { width: 100%; }
.h-full { height: 100%; }
.h-48 { height: 12rem; }
.min-h-screen { min-height: 100vh; }
.max-w-3xl { max-width: 48rem; }
.max-w-7xl { max-width: 80rem; }

/* 对象适配 */
.object-cover { object-fit: cover; }
.object-contain { object-fit: contain; }

/* 溢出 */
.overflow-hidden { overflow: hidden; }
.overflow-x-hidden { overflow-x: hidden; }
.overflow-y-auto { overflow-y: auto; }

/* 显示 */
.block { display: block; }
.inline-block { display: inline-block; }
.inline { display: inline; }
.hidden { display: none; }

/* 边距自动 */
.mx-auto { margin-left: auto; margin-right: auto; }
.my-auto { margin-top: auto; margin-bottom: auto; }

/* 内边距 */
.px-4 { padding-left: 1rem; padding-right: 1rem; }
.px-6 { padding-left: 1.5rem; padding-right: 1.5rem; }
.px-8 { padding-left: 2rem; padding-right: 2rem; }
.py-4 { padding-top: 1rem; padding-bottom: 1rem; }
.pt-16 { padding-top: 4rem; }

/* 响应式内边距 */
@media (min-width: 640px) {
  .sm\:px-6 { padding-left: 1.5rem; padding-right: 1.5rem; }
}

@media (min-width: 1024px) {
  .lg\:px-8 { padding-left: 2rem; padding-right: 2rem; }
}

/* 外边距 */
.mb-6 { margin-bottom: 1.5rem; }
.mb-8 { margin-bottom: 2rem; }
.mr-2 { margin-right: 0.5rem; }

/* 行高 */
.leading-tight { line-height: 1.25; }
.leading-relaxed { line-height: 1.625; }

/* 间隙 */
.gap-4 { gap: 1rem; }

/* 背景渐变 */
.bg-gradient-to-r { background-image: linear-gradient(to right, var(--tw-gradient-stops)); }
.bg-gradient-to-br { background-image: linear-gradient(to bottom right, var(--tw-gradient-stops)); }
.from-blue-900\/80 { --tw-gradient-from: rgb(30 58 138 / 0.8); --tw-gradient-stops: var(--tw-gradient-from), var(--tw-gradient-to, rgb(30 58 138 / 0)); }
.to-purple-900\/60 { --tw-gradient-to: rgb(88 28 135 / 0.6); }
.from-blue-400 { --tw-gradient-from: #60a5fa; --tw-gradient-stops: var(--tw-gradient-from), var(--tw-gradient-to, rgb(96 165 250 / 0)); }
.to-purple-400 { --tw-gradient-to: #c084fc; }
.from-blue-500 { --tw-gradient-from: #3b82f6; --tw-gradient-stops: var(--tw-gradient-from), var(--tw-gradient-to, rgb(59 130 246 / 0)); }
.to-purple-600 { --tw-gradient-to: #9333ea; }
.from-green-500 { --tw-gradient-from: #10b981; --tw-gradient-stops: var(--tw-gradient-from), var(--tw-gradient-to, rgb(16 185 129 / 0)); }
.to-teal-600 { --tw-gradient-to: #0d9488; }
.to-pink-600 { --tw-gradient-to: #db2777; }
.from-purple-500 { --tw-gradient-from: #a855f7; --tw-gradient-stops: var(--tw-gradient-from), var(--tw-gradient-to, rgb(168 85 247 / 0)); }
.to-indigo-600 { --tw-gradient-to: #4f46e5; }

/* 背景裁剪 */
.bg-clip-text { background-clip: text; -webkit-background-clip: text; }

/* 文本透明 */
.text-transparent { color: transparent; }

/* 动画 */
.animate-bounce {
  animation: bounce 1s infinite;
}

.animate-fade-in-up {
  animation: fadeInUp 0.8s ease-out;
}

@keyframes bounce {
  0%, 20%, 53%, 80%, 100% {
    transform: translate3d(0,0,0);
  }
  40%, 43% {
    transform: translate3d(0,-30px,0);
  }
  70% {
    transform: translate3d(0,-15px,0);
  }
  90% {
    transform: translate3d(0,-4px,0);
  }
}

@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translate3d(0, 40px, 0);
  }
  to {
    opacity: 1;
    transform: translate3d(0, 0, 0);
  }
}

/* 暗色主题支持 */
.dark\:from-gray-900\/90 { --tw-gradient-from: rgb(17 24 39 / 0.9); --tw-gradient-stops: var(--tw-gradient-from), var(--tw-gradient-to, rgb(17 24 39 / 0)); }
.dark\:to-blue-900\/70 { --tw-gradient-to: rgb(30 58 138 / 0.7); }

/* 圆角 */
.rounded { border-radius: var(--radius-md); }
.rounded-sm { border-radius: var(--radius-sm); }
.rounded-lg { border-radius: var(--radius-lg); }
.rounded-xl { border-radius: var(--radius-xl); }
.rounded-full { border-radius: 9999px; }

/* 阴影 */
.shadow-sm { box-shadow: var(--shadow-sm); }
.shadow-md { box-shadow: var(--shadow-md); }
.shadow-lg { box-shadow: var(--shadow-lg); }
.shadow-xl { box-shadow: var(--shadow-xl); }

/* 过渡动画 */
.transition { transition: all 0.2s ease-in-out; }
.transition-colors { transition: color 0.2s ease-in-out, background-color 0.2s ease-in-out, border-color 0.2s ease-in-out; }
.transition-transform { transition: transform 0.2s ease-in-out; }
.transition-all { transition: all 0.3s ease; }
.duration-300 { transition-duration: 300ms; }

/* 背景渐变 */
.bg-gradient-to-r { background-image: linear-gradient(to right, var(--tw-gradient-stops)); }
.bg-gradient-to-br { background-image: linear-gradient(to bottom right, var(--tw-gradient-stops)); }
.from-gray-200 { --tw-gradient-from: #e5e7eb; --tw-gradient-stops: var(--tw-gradient-from), var(--tw-gradient-to, rgba(229, 231, 235, 0)); }
.to-gray-300 { --tw-gradient-to: #d1d5db; }
.from-gray-600 { --tw-gradient-from: #4b5563; --tw-gradient-stops: var(--tw-gradient-from), var(--tw-gradient-to, rgba(75, 85, 99, 0)); }
.to-gray-700 { --tw-gradient-to: #374151; }
.from-primary-600 { --tw-gradient-from: #2563eb; --tw-gradient-stops: var(--tw-gradient-from), var(--tw-gradient-to, rgba(37, 99, 235, 0)); }
.to-secondary-600 { --tw-gradient-to: #7c3aed; }
.from-blue-600 { --tw-gradient-from: #2563eb; --tw-gradient-stops: var(--tw-gradient-from), var(--tw-gradient-to, rgba(37, 99, 235, 0)); }
.to-purple-600 { --tw-gradient-to: #9333ea; }

/* Backdrop Blur */
.backdrop-blur-sm { backdrop-filter: blur(4px); }

/* Transform */
.transform { transform: var(--tw-transform); }
.-translate-y-2 { --tw-translate-y: -0.5rem; transform: translateY(var(--tw-translate-y)); }
.hover\:-translate-y-2:hover { --tw-translate-y: -0.5rem; transform: translateY(var(--tw-translate-y)); }

/* 尺寸 */
.h-8 { height: 2rem; }
.h-16 { height: 4rem; }
.h-48 { height: 12rem; }
.w-8 { width: 2rem; }
.w-16 { width: 4rem; }
.min-h-screen { min-height: 100vh; }
.max-w-3xl { max-width: 48rem; }
.max-w-6xl { max-width: 72rem; }
.max-w-7xl { max-width: 80rem; }

/* 定位 */
.fixed { position: fixed; }
.relative { position: relative; }
.absolute { position: absolute; }
.top-0 { top: 0; }
.left-0 { left: 0; }
.right-0 { right: 0; }
.z-50 { z-index: 50; }

/* 显示 */
.hidden { display: none; }
.block { display: block; }
.inline-flex { display: inline-flex; }

/* 响应式显示 */
@media (min-width: 768px) {
  .md\:flex { display: flex; }
  .md\:hidden { display: none; }
  .md\:text-2xl { font-size: 1.5rem; line-height: 2rem; }
  .md\:text-5xl { font-size: 3rem; line-height: 1; }
}

@media (min-width: 640px) {
  .sm\:px-6 { padding-left: 1.5rem; padding-right: 1.5rem; }
}

@media (min-width: 1024px) {
  .lg\:px-8 { padding-left: 2rem; padding-right: 2rem; }
}

/* 边框 */
.border { border-width: 1px; }
.border-b { border-bottom-width: 1px; }
.border-t { border-top-width: 1px; }
.rounded-2xl { border-radius: 1rem; }
.rounded-full { border-radius: 9999px; }

/* 溢出 */
.overflow-hidden { overflow: hidden; }

/* 间距 */
.space-x-3 > * + * { margin-left: 0.75rem; }
.space-x-8 > * + * { margin-left: 2rem; }
.mx-auto { margin-left: auto; margin-right: auto; }
.mb-3 { margin-bottom: 0.75rem; }
.mb-4 { margin-bottom: 1rem; }
.mb-6 { margin-bottom: 1.5rem; }
.mb-8 { margin-bottom: 2rem; }
.mb-12 { margin-bottom: 3rem; }
.mb-16 { margin-bottom: 4rem; }
.mt-2 { margin-top: 0.5rem; }
.mt-12 { margin-top: 3rem; }
.ml-2 { margin-left: 0.5rem; }
.px-4 { padding-left: 1rem; padding-right: 1rem; }
.px-6 { padding-left: 1.5rem; padding-right: 1.5rem; }
.px-8 { padding-left: 2rem; padding-right: 2rem; }
.py-4 { padding-top: 1rem; padding-bottom: 1rem; }
.py-8 { padding-top: 2rem; padding-bottom: 2rem; }
.py-20 { padding-top: 5rem; padding-bottom: 5rem; }

/* 其他工具类 */
.leading-relaxed { line-height: 1.625; }
.font-bold { font-weight: 700; }
.font-semibold { font-weight: 600; }
.cursor-pointer { cursor: pointer; }
.select-none { user-select: none; }
.whitespace-nowrap { white-space: nowrap; }

/* Dark mode utilities */
.dark\:bg-gray-900 { background-color: #111827; }
.dark\:bg-gray-800 { background-color: #1f2937; }
.dark\:bg-gray-700 { background-color: #374151; }
.dark\:text-white { color: #ffffff; }
.dark\:text-gray-300 { color: #d1d5db; }
.dark\:text-primary-400 { color: #60a5fa; }
.dark\:border-gray-700 { border-color: #374151; }
.dark\:from-gray-600 { --tw-gradient-from: #4b5563; }
.dark\:to-gray-700 { --tw-gradient-to: #374151; }
.dark\:hidden { display: none; }
.dark\:block { display: block; }

/* 媒体查询中的dark mode */
@media (prefers-color-scheme: dark) {
  .dark\:bg-gray-900 { background-color: #111827; }
  .dark\:text-white { color: #ffffff; }
}

/* 悬停效果 */
.hover\:scale-105:hover { transform: scale(1.05); }
.hover\:shadow-lg:hover { box-shadow: var(--shadow-lg); }
.hover\:-translate-y-1:hover { transform: translateY(-0.25rem); }

/* ===== 特定组件样式 ===== */

/* 移动端菜单样式 */
#mobile-menu {
  position: relative;
  z-index: 50;
  width: 100%;
}

#mobile-menu.hidden {
  display: none;
}

#mobile-menu-button {
  position: relative;
  z-index: 51;
  pointer-events: auto !important;
  cursor: pointer !important;
  touch-action: manipulation;
  -webkit-tap-highlight-color: transparent;
}

/* 移动端菜单动画 */
#mobile-menu {
  transition: all 0.3s ease;
}

/* 确保移动端菜单在小屏幕上可见 */
@media (max-width: 767px) {
  #mobile-menu {
    display: block;
  }
  
  #mobile-menu.hidden {
    display: none !important;
  }
}

/* 菜单打开时的body样式 */
body.menu-open {
  overflow: hidden;
}

@media (max-width: 767px) {
  body.menu-open {
    overflow: hidden;
    position: fixed;
    width: 100%;
  }
}

/* 重复的导航栏样式已移除，使用上方的统一定义 */

/* 英雄区域样式 */
.hero {
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-secondary) 100%);
  color: white;
  padding: var(--spacing-3xl) 0;
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><defs><pattern id="grain" width="100" height="100" patternUnits="userSpaceOnUse"><circle cx="50" cy="50" r="1" fill="%23ffffff" opacity="0.1"/></pattern></defs><rect width="100" height="100" fill="url(%23grain)"/></svg>') repeat;
  opacity: 0.1;
}

/* 特色图片样式 */
.featured-image {
  position: relative;
  overflow: hidden;
  border-radius: var(--radius-lg);
}

.featured-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.3s ease;
}

.featured-image:hover img {
  transform: scale(1.05);
}

/* 分页样式 */
.pagination {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: var(--spacing-sm);
  margin: var(--spacing-2xl) 0;
}

.pagination a,
.pagination span {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 2.5rem;
  height: 2.5rem;
  padding: 0 var(--spacing-sm);
  border: 1px solid var(--color-border-primary);
  border-radius: var(--radius-md);
  text-decoration: none;
  color: var(--color-text-primary);
  transition: all 0.2s ease;
}

.pagination a:hover {
  background-color: var(--color-primary);
  color: white;
  border-color: var(--color-primary);
}

.pagination .current {
  background-color: var(--color-primary);
  color: white;
  border-color: var(--color-primary);
}

/* 表单样式 */
.form-group {
  margin-bottom: var(--spacing-lg);
}

.form-label {
  display: block;
  font-weight: 500;
  color: var(--text-primary);
  margin-bottom: 0.5rem;
  font-size: 0.875rem;
}

.form-input,
.form-textarea,
.form-select {
  width: 100%;
  padding: 0.75rem;
  border: 1px solid var(--border-color);
  border-radius: 0.375rem;
  background-color: var(--bg-primary);
  color: var(--text-primary);
  font-size: 0.875rem;
  transition: all 0.2s ease;
}

.form-input:focus,
.form-textarea:focus,
.form-select:focus {
  outline: none;
  border-color: var(--accent-color);
  box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.1);
}

.form-textarea {
  resize: vertical;
  min-height: 120px;
}

/* 主题切换按钮 */


/* 动画 */
.loading {
  animation: spin 1s linear infinite;
}

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

.fade-in {
  animation: fadeIn 0.5s ease-in;
}

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

.slide-in-left {
  animation: slideInLeft 0.5s ease-out;
}

@keyframes slideInLeft {
  from {
    opacity: 0;
    transform: translateX(-30px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

.slide-in-right {
  animation: slideInRight 0.5s ease-out;
}

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

@keyframes blob {
  0% {
    transform: translate(0px, 0px) scale(1);
  }
  33% {
    transform: translate(30px, -50px) scale(1.1);
  }
  66% {
    transform: translate(-20px, 20px) scale(0.9);
  }
  100% {
    transform: translate(0px, 0px) scale(1);
  }
}

/* ===== 页面特定组件样式 ===== */

/* Hero Section */
.hero-section {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  background: linear-gradient(135deg, #3b82f6 0%, #8b5cf6 100%);
}

.hero-buttons {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
  justify-content: center;
  margin-top: 2rem;
}

/* Section Styles */
.section {
  padding: 5rem 0;
}

.section-alt {
  padding: 5rem 0;
  background-color: var(--bg-secondary);
}

/* Features Grid */
.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 2rem;
  margin-top: 3rem;
}

.feature-card {
  background-color: var(--bg-card);
  border-radius: 1rem;
  padding: 2rem;
  text-align: center;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--border-color);
  transition: all 0.3s ease;
}

.feature-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-xl);
}

/* Products Grid */
.products-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 2rem;
  margin-top: 3rem;
}

.product-card {
  background-color: var(--bg-card);
  border-radius: 1rem;
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--border-color);
  transition: all 0.3s ease;
}

.product-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-xl);
}

/* Animation Classes */
.animate-fade-in {
  animation: fadeIn 0.6s ease-out;
}

.animate-slide-in-left {
  animation: slideInLeft 0.6s ease-out;
}

.animate-slide-in-right {
  animation: slideInRight 0.6s ease-out;
}

.animate-bounce {
  animation: bounce 2s infinite;
}

@keyframes bounce {
  0%, 20%, 53%, 80%, 100% {
    transform: translate3d(0,0,0);
  }
  40%, 43% {
    transform: translate3d(0, -30px, 0);
  }
  70% {
    transform: translate3d(0, -15px, 0);
  }
  90% {
    transform: translate3d(0, -4px, 0);
  }
}

.animate-blob {
  animation: blob 7s infinite;
}

.animation-delay-2000 {
  animation-delay: 2s;
}

.animation-delay-4000 {
  animation-delay: 4s;
}

/* 背景网格图案 */
.bg-grid-pattern {
  background-image: 
    linear-gradient(rgba(0, 0, 0, 0.1) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0, 0, 0, 0.1) 1px, transparent 1px);
  background-size: 20px 20px;
}

/* 工具类 */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 1rem;
  box-sizing: border-box;
  overflow-x: hidden;
}

.text-gradient {
  background: linear-gradient(135deg, var(--accent-color), #8b5cf6);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.glass-effect {
  background: rgba(255, 255, 255, 0.1);
  backdrop-filter: blur(10px);
  border: 1px solid rgba(255, 255, 255, 0.2);
}

.hidden {
  display: none;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

/* 文本截断 */
.line-clamp-3 {
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  line-clamp: 3;
  overflow: hidden;
}

/* 混合模式 */
.mix-blend-multiply {
  mix-blend-mode: multiply;
}

/* 滤镜效果 */
.filter {
  filter: var(--tw-blur) var(--tw-brightness) var(--tw-contrast) var(--tw-grayscale) var(--tw-hue-rotate) var(--tw-invert) var(--tw-saturate) var(--tw-sepia) var(--tw-drop-shadow);
}

.blur-xl {
  --tw-blur: blur(24px);
  filter: var(--tw-blur) var(--tw-brightness) var(--tw-contrast) var(--tw-grayscale) var(--tw-hue-rotate) var(--tw-invert) var(--tw-saturate) var(--tw-sepia) var(--tw-drop-shadow);
}

/* 透明度 */
.opacity-5 {
  opacity: 0.05;
}

.opacity-70 {
  opacity: 0.7;
}

/* 宽高比 */
.aspect-w-16 {
  position: relative;
  padding-bottom: calc(var(--tw-aspect-h) / var(--tw-aspect-w) * 100%);
  --tw-aspect-w: 16;
}

.aspect-h-9 {
  --tw-aspect-h: 9;
}

.aspect-w-16 > * {
  position: absolute;
  top: 0;
  right: 0;
  bottom: 0;
  left: 0;
  display: flex;
  height: 100%;
  width: 100%;
  align-items: center;
  justify-content: center;
}

/* Tailwind CSS 颜色类 */
.bg-primary-200 {
  background-color: #dbeafe;
}

.bg-primary-900 {
  background-color: #1e3a8a;
}

.bg-secondary-200 {
  background-color: #a7f3d0;
}

.bg-secondary-900 {
  background-color: #064e3b;
}

.bg-pink-200 {
  background-color: #fce7f3;
}

.bg-pink-900 {
  background-color: #831843;
}

/* 暗色模式下的颜色 */
.dark .bg-primary-200 {
  background-color: #1e3a8a;
}

.dark .bg-primary-900 {
  background-color: #dbeafe;
}

.dark .bg-secondary-200 {
  background-color: #064e3b;
}

.dark .bg-secondary-900 {
  background-color: #a7f3d0;
}

.dark .bg-pink-200 {
  background-color: #831843;
}

.dark .bg-pink-900 {
  background-color: #fce7f3;
}

/* Transform 工具类 */
.transform {
  transform: var(--tw-transform);
}

.translate-x-1\/4 {
  --tw-translate-x: 25%;
  transform: translateX(var(--tw-translate-x)) translateY(var(--tw-translate-y)) rotate(var(--tw-rotate)) skewX(var(--tw-skew-x)) skewY(var(--tw-skew-y)) scaleX(var(--tw-scale-x)) scaleY(var(--tw-scale-y));
}

.-translate-x-1\/2 {
  --tw-translate-x: -50%;
  transform: translateX(var(--tw-translate-x)) translateY(var(--tw-translate-y)) rotate(var(--tw-rotate)) skewX(var(--tw-skew-x)) skewY(var(--tw-skew-y)) scaleX(var(--tw-scale-x)) scaleY(var(--tw-scale-y));
}

.-translate-y-1\/2 {
  --tw-translate-y: -50%;
  transform: translateX(var(--tw-translate-x)) translateY(var(--tw-translate-y)) rotate(var(--tw-rotate)) skewX(var(--tw-skew-x)) skewY(var(--tw-skew-y)) scaleX(var(--tw-scale-x)) scaleY(var(--tw-scale-y));
}

.-translate-y-1 {
  --tw-translate-y: -0.25rem;
  transform: translateX(var(--tw-translate-x)) translateY(var(--tw-translate-y)) rotate(var(--tw-rotate)) skewX(var(--tw-skew-x)) skewY(var(--tw-skew-y)) scaleX(var(--tw-scale-x)) scaleY(var(--tw-scale-y));
}

.-translate-y-2 {
  --tw-translate-y: -0.5rem;
  transform: translateX(var(--tw-translate-x)) translateY(var(--tw-translate-y)) rotate(var(--tw-rotate)) skewX(var(--tw-skew-x)) skewY(var(--tw-skew-y)) scaleX(var(--tw-scale-x)) scaleY(var(--tw-scale-y));
}

.rotate-12 {
  --tw-rotate: 12deg;
  transform: translateX(var(--tw-translate-x)) translateY(var(--tw-translate-y)) rotate(var(--tw-rotate)) skewX(var(--tw-skew-x)) skewY(var(--tw-skew-y)) scaleX(var(--tw-scale-x)) scaleY(var(--tw-scale-y));
}

.scale-105 {
  --tw-scale-x: 1.05;
  --tw-scale-y: 1.05;
  transform: translateX(var(--tw-translate-x)) translateY(var(--tw-translate-y)) rotate(var(--tw-rotate)) skewX(var(--tw-skew-x)) skewY(var(--tw-skew-y)) scaleX(var(--tw-scale-x)) scaleY(var(--tw-scale-y));
}

.scale-110 {
  --tw-scale-x: 1.1;
  --tw-scale-y: 1.1;
  transform: translateX(var(--tw-translate-x)) translateY(var(--tw-translate-y)) rotate(var(--tw-rotate)) skewX(var(--tw-skew-x)) skewY(var(--tw-skew-y)) scaleX(var(--tw-scale-x)) scaleY(var(--tw-scale-y));
}

/* Hover transform 类 */
.hover\:-translate-y-1:hover {
  --tw-translate-y: -0.25rem;
  transform: translateX(var(--tw-translate-x)) translateY(var(--tw-translate-y)) rotate(var(--tw-rotate)) skewX(var(--tw-skew-x)) skewY(var(--tw-skew-y)) scaleX(var(--tw-scale-x)) scaleY(var(--tw-scale-y));
}

.hover\:-translate-y-2:hover {
  --tw-translate-y: -0.5rem;
  transform: translateX(var(--tw-translate-x)) translateY(var(--tw-translate-y)) rotate(var(--tw-rotate)) skewX(var(--tw-skew-x)) skewY(var(--tw-skew-y)) scaleX(var(--tw-scale-x)) scaleY(var(--tw-scale-y));
}

.hover\:scale-105:hover {
  --tw-scale-x: 1.05;
  --tw-scale-y: 1.05;
  transform: translateX(var(--tw-translate-x)) translateY(var(--tw-translate-y)) rotate(var(--tw-rotate)) skewX(var(--tw-skew-x)) skewY(var(--tw-skew-y)) scaleX(var(--tw-scale-x)) scaleY(var(--tw-scale-y));
}

.hover\:scale-110:hover {
  --tw-scale-x: 1.1;
  --tw-scale-y: 1.1;
  transform: translateX(var(--tw-translate-x)) translateY(var(--tw-translate-y)) rotate(var(--tw-rotate)) skewX(var(--tw-skew-x)) skewY(var(--tw-skew-y)) scaleX(var(--tw-scale-x)) scaleY(var(--tw-scale-y));
}

/* 初始化 transform 变量 */
* {
  --tw-translate-x: 0;
  --tw-translate-y: 0;
  --tw-rotate: 0;
  --tw-skew-x: 0;
  --tw-skew-y: 0;
  --tw-scale-x: 1;
  --tw-scale-y: 1;
  --tw-transform: translateX(var(--tw-translate-x)) translateY(var(--tw-translate-y)) rotate(var(--tw-rotate)) skewX(var(--tw-skew-x)) skewY(var(--tw-skew-y)) scaleX(var(--tw-scale-x)) scaleY(var(--tw-scale-y));
}

/* 定位工具类 */
.absolute {
  position: absolute;
}

.relative {
  position: relative;
}

.top-1\/2 {
  top: 50%;
}

.left-1\/2 {
  left: 50%;
}

.right-0 {
  right: 0;
}

.right-2 {
  right: 0.5rem;
}

.left-0 {
  left: 0;
}

.top-20 {
  top: 5rem;
}

.top-40 {
  top: 10rem;
}

.left-20 {
  left: 5rem;
}

.right-20 {
  right: 5rem;
}

.bottom-20 {
  bottom: 5rem;
}

.inset-0 {
  top: 0;
  right: 0;
  bottom: 0;
  left: 0;
}

/* 尺寸工具类 */
.w-1 {
  width: 0.25rem;
}

.w-4 {
  width: 1rem;
}

.w-8 {
  width: 2rem;
}

.w-12 {
  width: 3rem;
}

.w-72 {
  width: 18rem;
}

.h-1 {
  height: 0.25rem;
}

.h-4 {
  height: 1rem;
}

.h-8 {
  height: 2rem;
}

.h-12 {
  height: 3rem;
}

.h-72 {
  height: 18rem;
}

.h-full {
  height: 100%;
}

/* Z-index */
.z-10 {
  z-index: 10;
}

.z-20 {
  z-index: 20;
}

/* 全屏覆盖层 */
.overlay-full {
  position: absolute;
  height: 100%;
  width: 100%;
  top: 0;
  right: 0;
  bottom: 0;
  left: 0;
}

/* 响应式设计 */
@media (max-width: 767px) {
  .container {
    padding: 0 var(--spacing-md);
    box-sizing: border-box;
  }
  
  .hero {
    padding: var(--spacing-2xl) 0;
  }
  
  .text-4xl {
    font-size: 1.875rem;
    line-height: 2.25rem;
  }
  
  .text-5xl {
    font-size: 2.25rem;
    line-height: 2.5rem;
  }
}

@media (max-width: 479px) {
  .container {
    padding: 0 var(--spacing-sm);
    box-sizing: border-box;
  }
  
  .btn {
    padding: var(--spacing-xs) var(--spacing-md);
    font-size: 0.75rem;
  }
  
  .btn-lg {
    padding: var(--spacing-sm) var(--spacing-lg);
    font-size: 0.875rem;
  }
}

/* 打印样式 */
@media print {
  .no-print {
    display: none !important;
  }
  
  body {
    background: white !important;
    color: black !important;
  }
  
  .card {
    border: 1px solid #ccc !important;
    box-shadow: none !important;
  }
}

/* 可访问性增强 */
@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;
  }
}

/* 高对比度模式 */
@media (prefers-contrast: high) {
  :root {
    --color-border-primary: #000000;
    --color-border-secondary: #000000;
  }
  
  [data-theme="dark"] {
    --color-border-primary: #ffffff;
    --color-border-secondary: #ffffff;
  }
}

/* ===== 页面布局样式 ===== */

/* Hero区域样式 */
.hero-section {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  background: linear-gradient(135deg, var(--bg-primary) 0%, var(--bg-secondary) 100%);
  overflow: hidden;
}

.hero-buttons {
  display: flex;
  gap: 1rem;
  justify-content: center;
  flex-wrap: wrap;
  margin: 2rem 0;
}

/* 特色网格 */
.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 2rem;
  margin-top: 3rem;
}

/* 区域样式 */
.section {
  padding: 4rem 0;
}

.section-alt {
  background-color: var(--bg-secondary);
  padding: 4rem 0;
}

/* 产品网格 */
.products-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 2rem;
  margin-top: 2rem;
}

.product-card {
  background-color: var(--bg-card);
  border-radius: 0.5rem;
  padding: 1.5rem;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--border-color);
  transition: all 0.3s ease;
  text-align: center;
}

.product-card:hover {
  box-shadow: var(--shadow-lg);
  transform: translateY(-2px);
}

/* 新闻网格 */
.news-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 2rem;
  margin-top: 2rem;
}

.news-card {
  background-color: var(--bg-card);
  border-radius: 0.5rem;
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--border-color);
  transition: all 0.3s ease;
}

.news-card:hover {
  box-shadow: var(--shadow-lg);
  transform: translateY(-2px);
}

/* 统计数据网格 */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 2rem;
  margin: 3rem 0;
}

/* 特色卡片 */
.feature-card {
  background-color: var(--bg-card);
  border-radius: 0.5rem;
  padding: 2rem;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--border-color);
  transition: all 0.3s ease;
  text-align: center;
}

.feature-card:hover {
  box-shadow: var(--shadow-lg);
  transform: translateY(-2px);
}

/* CTA区域 */
.cta-section {
  background: linear-gradient(135deg, var(--accent-color) 0%, #8b5cf6 100%);
  color: white;
  padding: 4rem 0;
  text-align: center;
}

.cta-buttons {
  display: flex;
  gap: 1rem;
  justify-content: center;
  flex-wrap: wrap;
  margin-top: 2rem;
}

.btn-white {
  background-color: white;
  color: var(--accent-color);
  border: 1px solid white;
}

.btn-white:hover {
  background-color: transparent;
  color: white;
  border-color: white;
}

.btn-outline-white {
  background-color: transparent;
  color: white;
  border: 1px solid white;
}

.btn-outline-white:hover {
  background-color: white;
  color: var(--accent-color);
}

/* 页脚样式 */
.site-footer {
  background-color: #1f2937;
  color: white;
}

.footer-main {
  padding: 3rem 0;
}

.footer-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 2rem;
}

.footer-bottom {
  border-top: 1px solid #374151;
  padding: 1.5rem 0;
}

.footer-bottom-content {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 1rem;
}

/* 回到顶部按钮 */
.back-to-top {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  background-color: var(--accent-color);
  color: white;
  width: 3rem;
  height: 3rem;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--shadow-lg);
  transition: all 0.3s ease;
  opacity: 0;
  visibility: hidden;
  z-index: 1000;
}

.back-to-top:hover {
  background-color: #2563eb;
  transform: translateY(-2px);
}

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

/* ===== Tailwind CSS 自定义工具类 ===== */
/* Primary 颜色系列 */
.text-primary-50 { color: #f0f9ff; }
.text-primary-100 { color: #e0f2fe; }
.text-primary-200 { color: #bae6fd; }
.text-primary-300 { color: #7dd3fc; }
.text-primary-400 { color: #38bdf8; }
.text-primary-500 { color: #3b82f6; }
.text-primary-600 { color: #2563eb; }
.text-primary-700 { color: #1d4ed8; }
.text-primary-800 { color: #1e40af; }
.text-primary-900 { color: #1e3a8a; }

.bg-primary-50 { background-color: #f0f9ff; }
.bg-primary-100 { background-color: #e0f2fe; }
.bg-primary-200 { background-color: #bae6fd; }
.bg-primary-300 { background-color: #7dd3fc; }
.bg-primary-400 { background-color: #38bdf8; }
.bg-primary-500 { background-color: #3b82f6; }
.bg-primary-600 { background-color: #2563eb; }
.bg-primary-700 { background-color: #1d4ed8; }
.bg-primary-800 { background-color: #1e40af; }
.bg-primary-900 { background-color: #1e3a8a; }

.border-primary-50 { border-color: #f0f9ff; }
.border-primary-100 { border-color: #e0f2fe; }
.border-primary-200 { border-color: #bae6fd; }
.border-primary-300 { border-color: #7dd3fc; }
.border-primary-400 { border-color: #38bdf8; }
.border-primary-500 { border-color: #3b82f6; }
.border-primary-600 { border-color: #2563eb; }
.border-primary-700 { border-color: #1d4ed8; }
.border-primary-800 { border-color: #1e40af; }
.border-primary-900 { border-color: #1e3a8a; }

/* Secondary 颜色系列 */
.text-secondary-500 { color: #6366f1; }
.text-secondary-600 { color: #4f46e5; }
.bg-secondary-500 { background-color: #6366f1; }
.bg-secondary-600 { background-color: #4f46e5; }
.border-secondary-500 { border-color: #6366f1; }
.border-secondary-600 { border-color: #4f46e5; }

/* Gray 颜色系列 */
.text-gray-50 { color: #f9fafb; }
.text-gray-100 { color: #f3f4f6; }
.text-gray-200 { color: #e5e7eb; }
.text-gray-300 { color: #d1d5db; }
.text-gray-400 { color: #9ca3af; }
.text-gray-500 { color: #6b7280; }
.text-gray-600 { color: #4b5563; }
.text-gray-700 { color: #374151; }
.text-gray-800 { color: #1f2937; }
.text-gray-900 { color: #111827; }

.bg-gray-50 { background-color: #f9fafb; }
.bg-gray-100 { background-color: #f3f4f6; }
.bg-gray-200 { background-color: #e5e7eb; }
.bg-gray-300 { background-color: #d1d5db; }
.bg-gray-400 { background-color: #9ca3af; }
.bg-gray-500 { background-color: #6b7280; }
.bg-gray-600 { background-color: #4b5563; }
.bg-gray-700 { background-color: #374151; }
.bg-gray-800 { background-color: #1f2937; }
.bg-gray-900 { background-color: #111827; }

.border-gray-50 { border-color: #f9fafb; }
.border-gray-100 { border-color: #f3f4f6; }
.border-gray-200 { border-color: #e5e7eb; }
.border-gray-300 { border-color: #d1d5db; }
.border-gray-400 { border-color: #9ca3af; }
.border-gray-500 { border-color: #6b7280; }
.border-gray-600 { border-color: #4b5563; }
.border-gray-700 { border-color: #374151; }
.border-gray-800 { border-color: #1f2937; }
.border-gray-900 { border-color: #111827; }

/* 暗色模式支持 */
.dark .dark\:text-white { color: #ffffff; }
.dark .dark\:text-gray-100 { color: #f3f4f6; }
.dark .dark\:text-gray-200 { color: #e5e7eb; }
.dark .dark\:text-gray-300 { color: #d1d5db; }
.dark .dark\:text-gray-400 { color: #9ca3af; }
.dark .dark\:text-primary-400 { color: #38bdf8; }

.dark .dark\:bg-gray-800 { background-color: #1f2937; }
.dark .dark\:bg-gray-900 { background-color: #111827; }
.dark .dark\:bg-gray-700 { background-color: #374151; }

.dark .dark\:border-gray-600 { border-color: #4b5563; }
.dark .dark\:border-gray-700 { border-color: #374151; }
.dark .dark\:border-gray-800 { border-color: #1f2937; }

/* 布局工具类 */
.backdrop-blur-sm { backdrop-filter: blur(4px); }
.backdrop-blur-md { backdrop-filter: blur(12px); }

/* 透明度工具类 */
.bg-white\/95 { background-color: rgba(255, 255, 255, 0.95); }
.bg-gray-900\/95 { background-color: rgba(17, 24, 39, 0.95); }

/* 间距工具类 */
.space-x-3 > * + * { margin-left: 0.75rem; }
.space-x-8 > * + * { margin-left: 2rem; }
.space-y-4 > * + * { margin-top: 1rem; }
.space-y-6 > * + * { margin-top: 1.5rem; }

/* 最大宽度 */
.max-w-7xl { max-width: 80rem; }
.max-w-6xl { max-width: 72rem; }
.max-w-4xl { max-width: 56rem; }
.max-w-2xl { max-width: 42rem; }
.max-w-xl { max-width: 36rem; }
.max-w-lg { max-width: 32rem; }
.max-w-md { max-width: 28rem; }
.max-w-sm { max-width: 24rem; }

/* 字体大小 */
.text-xs { font-size: 0.75rem; line-height: 1rem; }
.text-sm { font-size: 0.875rem; line-height: 1.25rem; }
.text-base { font-size: 1rem; line-height: 1.5rem; }
.text-lg { font-size: 1.125rem; line-height: 1.75rem; }
.text-xl { font-size: 1.25rem; line-height: 1.75rem; }
.text-2xl { font-size: 1.5rem; line-height: 2rem; }
.text-3xl { font-size: 1.875rem; line-height: 2.25rem; }
.text-4xl { font-size: 2.25rem; line-height: 2.5rem; }
.text-5xl { font-size: 3rem; line-height: 1; }
.text-6xl { font-size: 3.75rem; line-height: 1; }

/* 字体粗细 */
.font-light { font-weight: 300; }
.font-normal { font-weight: 400; }
.font-medium { font-weight: 500; }
.font-semibold { font-weight: 600; }
.font-bold { font-weight: 700; }
.font-extrabold { font-weight: 800; }

/* 行高 */
.leading-tight { line-height: 1.25; }
.leading-snug { line-height: 1.375; }
.leading-normal { line-height: 1.5; }
.leading-relaxed { line-height: 1.625; }
.leading-loose { line-height: 2; }

/* 文本对齐 */
.text-left { text-align: left; }
.text-center { text-align: center; }
.text-right { text-align: right; }

/* 显示属性 */
.block { display: block; }
.inline-block { display: inline-block; }
.inline { display: inline; }
.flex { display: flex; }
.inline-flex { display: inline-flex; }
.grid { display: grid; }
.hidden { display: none; }

/* Flexbox */
.flex-col { flex-direction: column; }
.flex-row { flex-direction: row; }
.flex-wrap { flex-wrap: wrap; }
.items-start { align-items: flex-start; }
.items-center { align-items: center; }
.items-end { align-items: flex-end; }
.justify-start { justify-content: flex-start; }
.justify-center { justify-content: center; }
.justify-end { justify-content: flex-end; }
.justify-between { justify-content: space-between; }
.justify-around { justify-content: space-around; }

/* 定位 */
.relative { position: relative; }
.absolute { position: absolute; }
.fixed { position: fixed; }
.sticky { position: sticky; }

/* 边距 */
.m-0 { margin: 0; }
.m-1 { margin: 0.25rem; }
.m-2 { margin: 0.5rem; }
.m-3 { margin: 0.75rem; }
.m-4 { margin: 1rem; }
.m-6 { margin: 1.5rem; }
.m-8 { margin: 2rem; }
.mx-auto { margin-left: auto; margin-right: auto; }
.mt-2 { margin-top: 0.5rem; }
.mt-4 { margin-top: 1rem; }
.mt-6 { margin-top: 1.5rem; }
.mt-8 { margin-top: 2rem; }
.mt-12 { margin-top: 3rem; }
.mt-16 { margin-top: 4rem; }
.mb-2 { margin-bottom: 0.5rem; }
.mb-4 { margin-bottom: 1rem; }
.mb-6 { margin-bottom: 1.5rem; }
.mb-8 { margin-bottom: 2rem; }
.mb-12 { margin-bottom: 3rem; }
.ml-2 { margin-left: 0.5rem; }
.ml-4 { margin-left: 1rem; }
.mr-2 { margin-right: 0.5rem; }
.mr-4 { margin-right: 1rem; }

/* 内边距 */
.p-0 { padding: 0; }
.p-1 { padding: 0.25rem; }
.p-2 { padding: 0.5rem; }
.p-3 { padding: 0.75rem; }
.p-4 { padding: 1rem; }
.p-6 { padding: 1.5rem; }
.p-8 { padding: 2rem; }
.px-2 { padding-left: 0.5rem; padding-right: 0.5rem; }
.px-3 { padding-left: 0.75rem; padding-right: 0.75rem; }
.px-4 { padding-left: 1rem; padding-right: 1rem; }
.px-6 { padding-left: 1.5rem; padding-right: 1.5rem; }
.px-8 { padding-left: 2rem; padding-right: 2rem; }
.py-2 { padding-top: 0.5rem; padding-bottom: 0.5rem; }
.py-3 { padding-top: 0.75rem; padding-bottom: 0.75rem; }
.py-4 { padding-top: 1rem; padding-bottom: 1rem; }
.py-6 { padding-top: 1.5rem; padding-bottom: 1.5rem; }
.py-8 { padding-top: 2rem; padding-bottom: 2rem; }
.py-12 { padding-top: 3rem; padding-bottom: 3rem; }
.py-16 { padding-top: 4rem; padding-bottom: 4rem; }
.py-20 { padding-top: 5rem; padding-bottom: 5rem; }
.pt-16 { padding-top: 4rem; }
.pt-20 { padding-top: 5rem; }
.pb-8 { padding-bottom: 2rem; }
.pb-12 { padding-bottom: 3rem; }

/* 宽度和高度 */
.w-full { width: 100%; }
.w-auto { width: auto; }
.w-8 { width: 2rem; }
.w-12 { width: 3rem; }
.w-16 { width: 4rem; }
.w-24 { width: 6rem; }
.w-32 { width: 8rem; }
.w-48 { width: 12rem; }
.w-64 { width: 16rem; }
.h-full { height: 100%; }
.h-auto { height: auto; }
.h-8 { height: 2rem; }
.h-12 { height: 3rem; }
.h-16 { height: 4rem; }
.h-24 { height: 6rem; }
.h-32 { height: 8rem; }
.h-48 { height: 12rem; }
.h-64 { height: 16rem; }
.min-h-screen { min-height: 100vh; }

/* 边框 */
.border { border-width: 1px; }
.border-0 { border-width: 0; }
.border-2 { border-width: 2px; }
.border-t { border-top-width: 1px; }
.border-b { border-bottom-width: 1px; }
.border-l { border-left-width: 1px; }
.border-r { border-right-width: 1px; }

/* 圆角 */
.rounded { border-radius: 0.25rem; }
.rounded-sm { border-radius: 0.125rem; }
.rounded-md { border-radius: 0.375rem; }
.rounded-lg { border-radius: 0.5rem; }
.rounded-xl { border-radius: 0.75rem; }
.rounded-2xl { border-radius: 1rem; }
.rounded-full { border-radius: 9999px; }

/* 阴影 */
.shadow { box-shadow: 0 1px 3px 0 rgb(0 0 0 / 0.1), 0 1px 2px -1px rgb(0 0 0 / 0.1); }
.shadow-sm { box-shadow: 0 1px 2px 0 rgb(0 0 0 / 0.05); }
.shadow-md { box-shadow: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1); }
.shadow-lg { box-shadow: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1); }
.shadow-xl { box-shadow: 0 20px 25px -5px rgb(0 0 0 / 0.1), 0 8px 10px -6px rgb(0 0 0 / 0.1); }

/* 过渡效果 */
.transition { transition-property: color, background-color, border-color, text-decoration-color, fill, stroke, opacity, box-shadow, transform, filter, backdrop-filter; transition-timing-function: cubic-bezier(0.4, 0, 0.2, 1); transition-duration: 150ms; }
.transition-colors { transition-property: color, background-color, border-color, text-decoration-color, fill, stroke; transition-timing-function: cubic-bezier(0.4, 0, 0.2, 1); transition-duration: 150ms; }
.transition-all { transition-property: all; transition-timing-function: cubic-bezier(0.4, 0, 0.2, 1); transition-duration: 150ms; }
.duration-150 { transition-duration: 150ms; }
.duration-200 { transition-duration: 200ms; }
.duration-300 { transition-duration: 300ms; }
.ease-in { transition-timing-function: cubic-bezier(0.4, 0, 1, 1); }
.ease-out { transition-timing-function: cubic-bezier(0, 0, 0.2, 1); }
.ease-in-out { transition-timing-function: cubic-bezier(0.4, 0, 0.2, 1); }

/* 悬停效果 */
.hover\:text-primary-600:hover { color: #2563eb; }
.hover\:bg-primary-50:hover { background-color: #f0f9ff; }
.hover\:bg-gray-50:hover { background-color: #f9fafb; }
.hover\:shadow-lg:hover { box-shadow: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1); }
.hover\:scale-105:hover { transform: scale(1.05); }
.hover\:-translate-y-1:hover { transform: translateY(-0.25rem); }

/* 网格布局 */
.grid-cols-1 { grid-template-columns: repeat(1, minmax(0, 1fr)); }
.grid-cols-2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.grid-cols-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.grid-cols-4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }
.gap-4 { gap: 1rem; }
.gap-6 { gap: 1.5rem; }
.gap-8 { gap: 2rem; }

/* 溢出 */
.overflow-hidden { overflow: hidden; }
.overflow-x-hidden { overflow-x: hidden; }
.overflow-y-auto { overflow-y: auto; }

/* 光标 */
.cursor-pointer { cursor: pointer; }

/* 用户选择 */
.select-none { user-select: none; }

/* 对象适应 */
.object-cover { object-fit: cover; }
.object-contain { object-fit: contain; }

/* 白空间 */
.whitespace-nowrap { white-space: nowrap; }

/* 文本装饰 */
.no-underline { text-decoration: none; }
.underline { text-decoration: underline; }

/* 不透明度 */
.opacity-0 { opacity: 0; }
.opacity-50 { opacity: 0.5; }
.opacity-75 { opacity: 0.75; }
.opacity-100 { opacity: 1; }

/* 可见性 */
.visible { visibility: visible; }
.invisible { visibility: hidden; }

/* 响应式调整 */
@media (max-width: 768px) {
  .section {
    padding: 2rem 0;
  }
  
  .section-alt {
    padding: 2rem 0;
  }
  
  .products-grid,
  .news-grid {
    grid-template-columns: 1fr;
    gap: 1.5rem;
  }
  
  .stats-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 1.5rem;
  }
  
  .footer-grid {
    grid-template-columns: 1fr;
    gap: 1.5rem;
  }
  
  .footer-bottom-content {
    flex-direction: column;
    text-align: center;
  }
  
  .cta-buttons {
    flex-direction: column;
    align-items: center;
  }
  
  /* Tailwind 响应式工具类 */
  .md\:hidden { display: none; }
  .md\:flex { display: flex; }
  .md\:block { display: block; }
  .md\:grid-cols-2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .md\:grid-cols-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .md\:text-left { text-align: left; }
  .md\:text-4xl { font-size: 2.25rem; line-height: 2.5rem; }
  .md\:text-5xl { font-size: 3rem; line-height: 1; }
  .md\:px-6 { padding-left: 1.5rem; padding-right: 1.5rem; }
  .md\:py-8 { padding-top: 2rem; padding-bottom: 2rem; }
}

/* 小屏幕响应式 (sm) */
@media (min-width: 640px) {
  .sm\:px-6 { padding-left: 1.5rem; padding-right: 1.5rem; }
  .sm\:text-lg { font-size: 1.125rem; line-height: 1.75rem; }
  .sm\:text-xl { font-size: 1.25rem; line-height: 1.75rem; }
  .sm\:grid-cols-2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

/* 中等屏幕响应式 (md) */
@media (min-width: 768px) {
  .md\:flex { display: flex; }
  .md\:hidden { display: none; }
  .md\:block { display: block; }
  .md\:grid-cols-2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .md\:grid-cols-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .md\:text-left { text-align: left; }
  .md\:text-4xl { font-size: 2.25rem; line-height: 2.5rem; }
  .md\:text-5xl { font-size: 3rem; line-height: 1; }
  .md\:px-6 { padding-left: 1.5rem; padding-right: 1.5rem; }
  .md\:py-8 { padding-top: 2rem; padding-bottom: 2rem; }
}

/* 大屏幕响应式 (lg) */
@media (min-width: 1024px) {
  .lg\:px-8 { padding-left: 2rem; padding-right: 2rem; }
  .lg\:text-6xl { font-size: 3.75rem; line-height: 1; }
  .lg\:grid-cols-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .lg\:grid-cols-4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }
}

/* 超大屏幕响应式 (xl) */
@media (min-width: 1280px) {
  .xl\:text-7xl { font-size: 4.5rem; line-height: 1; }
  .xl\:grid-cols-4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }
}

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

/* ===== 诚聘英才页面样式 ===== */
.careers-page {
  min-height: 100vh;
}

.job-card {
  transition: all 0.3s ease;
  border: 1px solid var(--border-color);
}

.job-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

.job-tag {
  font-size: 0.875rem;
  font-weight: 500;
  padding: 0.25rem 0.75rem;
  border-radius: 9999px;
  display: inline-block;
}

.benefit-card {
  transition: all 0.3s ease;
  border: 1px solid var(--border-color);
}

.benefit-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.benefit-icon {
  transition: all 0.3s ease;
}

.benefit-card:hover .benefit-icon {
  transform: scale(1.1);
}

.apply-button {
  transition: all 0.3s ease;
  font-weight: 600;
}

.apply-button:hover {
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}

.salary-range {
  font-weight: 700;
  font-size: 1.5rem;
}

.job-requirements {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-top: 0.75rem;
}

.requirement-tag {
  background-color: var(--bg-secondary);
  color: var(--text-secondary);
  padding: 0.25rem 0.5rem;
  border-radius: 0.375rem;
  font-size: 0.75rem;
  font-weight: 500;
}

/* 响应式调整 */
@media (max-width: 768px) {
  .job-card {
    padding: 1rem;
  }
  
  .salary-range {
    font-size: 1.25rem;
  }
  
  .apply-button {
    width: 100%;
    margin-top: 1rem;
  }
}

/* 动画效果 */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.fade-in-up {
  animation: fadeInUp 0.6s ease-out;
}

.stagger-1 { animation-delay: 0.1s; }
.stagger-2 { animation-delay: 0.2s; }
.stagger-3 { animation-delay: 0.3s; }
.stagger-4 { animation-delay: 0.4s; }