/* 贝有科技企业官网自定义样式 */

/* CSS变量定义 - AI科技风格 */
:root {
  --primary-color: #3b82f6;
  --primary-dark: #1d4ed8;
  --primary-light: #60a5fa;
  --primary-lighter: #bfdbfe;
  --secondary-color: #8b5cf6;
  --secondary-light: #a78bfa;
  --accent-color: #06b6d4;
  --text-primary: #111827;
  --text-secondary: #374151;
  --bg-primary: #ffffff;
  --bg-secondary: #f3f4f6;
  --bg-tertiary: #0f172a;
  --border-light: #e5e7eb;
  --glow-primary: 0 0 15px rgba(59, 130, 246, 0.5);
  --glow-secondary: 0 0 15px rgba(139, 92, 246, 0.5);
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
  --shadow-tech: 0 0 20px rgba(59, 130, 246, 0.2);
  --radius-md: 0.5rem;
  --radius-lg: 0.75rem;
  --spacing-sm: 1rem;
  --spacing-md: 1.5rem;
  --spacing-lg: 2rem;
  --transition-fast: all 0.2s ease;
  --transition-slow: all 0.5s ease;
}

/* 全局样式 */
body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  line-height: 1.6;
  color: var(--text-primary);
  background-color: var(--bg-primary);
}

/* 容器 */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--spacing-md);
}

/* 按钮样式 */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: var(--spacing-sm) var(--spacing-md);
  font-size: 1rem;
  font-weight: 500;
  border: 2px solid transparent;
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: all 0.2s ease;
  text-decoration: none;
  min-height: 44px;
}

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

.btn-primary:hover {
  background-color: var(--primary-dark);
  border-color: var(--primary-dark);
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}

.btn-secondary {
  background-color: transparent;
  color: var(--primary-color);
  border-color: var(--primary-color);
}

.btn-secondary:hover {
  background-color: var(--primary-color);
  color: white;
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}

/* 卡片样式 - 科技风 */
.card {
  background: var(--bg-primary);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-lg);
  padding: var(--spacing-lg);
  box-shadow: var(--shadow-sm);
  transition: var(--transition-slow);
  position: relative;
  overflow: hidden;
}

/* 现代博客样式 */
.blog-post {
  max-width: 900px;
  margin: 0 auto;
  padding: 2rem;
}

.blog-meta {
  color: #64748b;
  font-size: 0.875rem;
  margin-bottom: 2rem;
  font-weight: 500;
}

.blog-tags {
  margin-top: 2rem;
}

.blog-tags a {
  background: linear-gradient(135deg, #f1f5f9 0%, #e2e8f0 100%);
  padding: 0.5rem 1rem;
  border-radius: 25px;
  margin-right: 0.75rem;
  text-decoration: none;
  color: #475569;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  font-weight: 500;
  font-size: 0.875rem;
  border: 1px solid transparent;
}

.blog-tags a:hover {
  background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-dark) 100%);
  color: white;
  transform: translateY(-2px);
  box-shadow: 0 10px 25px rgba(59, 130, 246, 0.3);
  border-color: var(--primary-color);
}

/* 现代博客文章卡片 */
.blog-card {
  background: linear-gradient(135deg, #ffffff 0%, #f8fafc 100%);
  border-radius: 20px;
  box-shadow: 
    0 4px 6px -1px rgba(0, 0, 0, 0.05),
    0 10px 15px -3px rgba(0, 0, 0, 0.05),
    0 0 0 1px rgba(0, 0, 0, 0.05);
  overflow: hidden;
  transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  border: 1px solid rgba(226, 232, 240, 0.8);
  position: relative;
  -webkit-backdrop-filter: blur(10px);
  backdrop-filter: blur(10px);
}

.blog-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--primary-color), var(--secondary-color), var(--accent-color));
  opacity: 0;
  transition: opacity 0.3s ease;
}

.blog-card:hover {
  transform: translateY(-8px) scale(1.02);
  box-shadow: 
    0 25px 50px -12px rgba(0, 0, 0, 0.15),
    0 0 0 1px rgba(59, 130, 246, 0.1);
  border-color: rgba(59, 130, 246, 0.2);
}

.blog-card:hover::before {
  opacity: 1;
}

.blog-card-content {
  padding: 2rem;
  position: relative;
}

.blog-card-title {
  font-size: 1.75rem;
  font-weight: 800;
  background: linear-gradient(135deg, var(--text-primary) 0%, var(--primary-color) 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  margin-bottom: 1rem;
  line-height: 1.3;
  letter-spacing: -0.025em;
}

.blog-card-title a {
  color: inherit;
  text-decoration: none;
  transition: all 0.3s ease;
}

.blog-card-title a:hover {
  background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.blog-card-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 1.5rem;
  margin-bottom: 1.5rem;
  font-size: 0.875rem;
  color: #64748b;
  font-weight: 500;
}

.blog-card-meta span {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.5rem 1rem;
  background: rgba(241, 245, 249, 0.8);
  border-radius: 12px;
  backdrop-filter: blur(10px);
  border: 1px solid rgba(226, 232, 240, 0.6);
  -webkit-backdrop-filter: blur(10px);
  backdrop-filter: blur(10px);
}

.blog-card-meta svg {
  width: 1rem;
  height: 1rem;
  color: var(--primary-color);
}

.blog-card-description {
  color: #475569;
  line-height: 1.7;
  margin-bottom: 2rem;
  font-size: 1.0625rem;
  font-weight: 400;
}

.blog-card-readmore {
  color: var(--primary-color);
  font-weight: 600;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  padding: 0.75rem 1.5rem;
  background: linear-gradient(135deg, rgba(59, 130, 246, 0.1) 0%, rgba(139, 92, 246, 0.1) 100%);
  border-radius: 12px;
  border: 1px solid rgba(59, 130, 246, 0.2);
  font-size: 0.875rem;
}

.blog-card-readmore:hover {
  color: white;
  background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
  transform: translateX(8px);
  box-shadow: 0 10px 25px rgba(59, 130, 246, 0.3);
  border-color: transparent;
}

.blog-card-readmore svg {
  transition: transform 0.3s ease;
}

.blog-card-readmore:hover svg {
  transform: translateX(4px);
}

/* 现代博客文章详情页 */
.blog-single {
  max-width: 900px;
  margin: 0 auto;
}

.blog-single-header {
  text-align: center;
  margin-bottom: 4rem;
  padding: 3rem 2rem;
  background: linear-gradient(135deg, #f8fafc 0%, #f1f5f9 100%);
  border-radius: 24px;
  border: 1px solid rgba(226, 232, 240, 0.8);
  position: relative;
  overflow: hidden;
}

.blog-single-header::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--primary-color), var(--secondary-color), var(--accent-color));
}

.blog-single-title {
  font-size: 3rem;
  font-weight: 900;
  background: linear-gradient(135deg, var(--text-primary) 0%, var(--primary-color) 50%, var(--secondary-color) 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  margin-bottom: 1.5rem;
  line-height: 1.2;
  letter-spacing: -0.02em;
}

.blog-single-meta {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 2rem;
  margin-bottom: 2rem;
  font-size: 0.875rem;
  color: #64748b;
  font-weight: 500;
}

.blog-single-meta span {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.75rem 1.25rem;
  background: rgba(255, 255, 255, 0.8);
  border-radius: 16px;
  -webkit-backdrop-filter: blur(10px);
  backdrop-filter: blur(10px);
  border: 1px solid rgba(226, 232, 240, 0.6);
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
}

.blog-single-description {
  font-size: 1.25rem;
  color: #475569;
  line-height: 1.7;
  max-width: 700px;
  margin: 0 auto;
  font-weight: 400;
}

.blog-single-content {
  line-height: 1.8;
  color: var(--text-primary);
  font-size: 1.125rem;
}

.blog-single-content h1,
.blog-single-content h2,
.blog-single-content h3,
.blog-single-content h4,
.blog-single-content h5,
.blog-single-content h6 {
  margin-top: 3rem;
  margin-bottom: 1.5rem;
  font-weight: 700;
  background: linear-gradient(135deg, var(--text-primary) 0%, var(--primary-color) 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  letter-spacing: -0.025em;
}

.blog-single-content h1 {
  font-size: 2.5rem;
}

.blog-single-content h2 {
  font-size: 2rem;
}

.blog-single-content h3 {
  font-size: 1.75rem;
}

.blog-single-content p {
  margin-bottom: 2rem;
  color: #374151;
}

.blog-single-content ul,
.blog-single-content ol {
  margin-bottom: 2rem;
  padding-left: 2rem;
}

.blog-single-content li {
  margin-bottom: 0.75rem;
  color: #374151;
}

.blog-single-content blockquote {
  border-left: 6px solid var(--primary-color);
  padding: 2rem;
  margin: 3rem 0;
  font-style: italic;
  color: #475569;
  background: linear-gradient(135deg, #f8fafc 0%, #f1f5f9 100%);
  border-radius: 16px;
  font-size: 1.125rem;
  font-weight: 500;
  position: relative;
  overflow: hidden;
}

.blog-single-content blockquote::before {
  content: '"';
  position: absolute;
  top: -10px;
  right: 20px;
  font-size: 8rem;
  color: rgba(59, 130, 246, 0.1);
  font-family: serif;
  line-height: 1;
}

.blog-single-content code {
  background: linear-gradient(135deg, #f1f5f9 0%, #e2e8f0 100%);
  padding: 0.25rem 0.5rem;
  border-radius: 8px;
  font-family: 'Monaco', 'Menlo', 'Ubuntu Mono', monospace;
  font-size: 0.9em;
  color: #1e293b;
  border: 1px solid rgba(226, 232, 240, 0.8);
  font-weight: 500;
}

.blog-single-content pre {
  background: linear-gradient(135deg, #0f172a 0%, #1e293b 100%);
  color: #e2e8f0;
  padding: 2rem;
  border-radius: 16px;
  overflow-x: auto;
  margin: 2rem 0;
  border: 1px solid rgba(59, 130, 246, 0.2);
  position: relative;
}

.blog-single-content pre::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--primary-color), var(--secondary-color));
  border-radius: 16px 16px 0 0;
}

.blog-single-content pre code {
  background: none;
  padding: 0;
  color: inherit;
  border: none;
}

/* 现代标签样式 */
.blog-single-content .blog-tags {
  margin-top: 3rem;
  padding: 2rem;
  background: linear-gradient(135deg, #f8fafc 0%, #f1f5f9 100%);
  border-radius: 20px;
  border: 1px solid rgba(226, 232, 240, 0.8);
}

.blog-single-content .blog-tags h3 {
  margin-top: 0;
  margin-bottom: 1.5rem;
  color: var(--text-primary);
  font-size: 1.25rem;
}

.blog-single-content .blog-tags a {
  background: linear-gradient(135deg, #ffffff 0%, #f8fafc 100%);
  padding: 0.75rem 1.5rem;
  border-radius: 25px;
  margin: 0.5rem;
  text-decoration: none;
  color: #475569;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  font-weight: 600;
  font-size: 0.875rem;
  border: 1px solid rgba(226, 232, 240, 0.8);
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
  display: inline-block;
}

.blog-single-content .blog-tags a:hover {
  background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-dark) 100%);
  color: white;
  transform: translateY(-3px);
  box-shadow: 0 15px 30px rgba(59, 130, 246, 0.3);
  border-color: var(--primary-color);
}

/* 现代分享按钮 */
.blog-single-content .share-buttons {
  margin-top: 3rem;
  padding: 2rem;
  background: linear-gradient(135deg, #f8fafc 0%, #f1f5f9 100%);
  border-radius: 20px;
  border: 1px solid rgba(226, 232, 240, 0.8);
}

.blog-single-content .share-buttons h3 {
  margin-top: 0;
  margin-bottom: 1.5rem;
  color: var(--text-primary);
  font-size: 1.25rem;
}

.blog-single-content .share-buttons a {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 48px;
  height: 48px;
  border-radius: 16px;
  margin: 0.5rem;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  background: linear-gradient(135deg, #ffffff 0%, #f8fafc 100%);
  border: 1px solid rgba(226, 232, 240, 0.8);
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
}

.blog-single-content .share-buttons a:hover {
  transform: translateY(-3px);
  box-shadow: 0 15px 30px rgba(0, 0, 0, 0.15);
}

.blog-single-content .share-buttons a.twitter:hover {
  background: linear-gradient(135deg, #1da1f2 0%, #0d8bd9 100%);
  color: white;
  border-color: #1da1f2;
}

.blog-single-content .share-buttons a.facebook:hover {
  background: linear-gradient(135deg, #1877f2 0%, #0d6efd 100%);
  color: white;
  border-color: #1877f2;
}

.blog-single-content .share-buttons a.linkedin:hover {
  background: linear-gradient(135deg, #0a66c2 0%, #0077b5 100%);
  color: white;
  border-color: #0a66c2;
}

/* 响应式设计 */
@media (max-width: 768px) {
  .blog-card-title {
    font-size: 1.5rem;
  }
  
  .blog-single-title {
    font-size: 2.25rem;
  }
  
  .blog-single-meta {
    flex-direction: column;
    gap: 1rem;
  }
  
  .blog-card-meta {
    flex-direction: column;
    gap: 1rem;
  }
  
  .blog-card-content {
    padding: 1.5rem;
  }
  
  .blog-single-header {
    padding: 2rem 1.5rem;
    margin-bottom: 3rem;
  }
}

.card::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(59, 130, 246, 0.1), transparent);
  transition: var(--transition-fast);
}

.card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-tech);
  border-color: var(--primary-light);
}

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

/* 核心业务区域 */
.features {
  padding: 6rem 0 !important;
  position: relative !important;
  background: radial-gradient(circle at 50% 50%, rgba(59, 130, 246, 0.03) 0%, transparent 70%) !important;
  overflow: visible !important;
  z-index: 1 !important;
  min-height: 800px !important;
}

#core-business-grid {
    display: grid !important;
    grid-template-columns: repeat(4, 1fr) !important;
    gap: 2rem !important;
    width: 100% !important;
    max-width: 1200px !important;
    margin: 3rem auto !important;
    padding: 0 !important;
    min-height: 500px !important;
    background: white !important;
    align-items: stretch !important;
    justify-items: stretch !important;
    box-sizing: border-box !important;
  }

.feature-item {
  background: var(--bg-primary) !important;
  border-radius: var(--radius-lg) !important;
  padding: 2rem !important;
  box-shadow: var(--shadow-sm) !important;
  transition: var(--transition-slow) !important;
  position: relative !important;
  overflow: visible !important;
  border: 1px solid var(--border-light) !important;
  opacity: 1 !important;
  visibility: visible !important;
  display: flex !important;
  flex-direction: column !important;
  height: 100% !important;
  width: 100% !important;
  min-height: 320px !important;
  max-width: 100% !important;
  margin: 0 !important;
  box-sizing: border-box !important;
  z-index: 3 !important;
  align-items: center !important;
  justify-content: flex-start !important;
  text-align: center !important;
}

.features .container {
  position: relative !important;
  z-index: 2 !important;
  max-width: 1200px !important;
  padding: 0 !important;
  margin: 0 auto !important;
  box-sizing: border-box !important;
}

.features h2 {
  font-size: 2.5rem;
  margin-bottom: 3rem;
  position: relative;
  display: inline-block;
  background: linear-gradient(90deg, var(--text-primary), var(--primary-color));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.features h2::after {
  content: '';
  position: absolute;
  bottom: -10px;
  left: 50%;
  transform: translateX(-50%);
  width: 70px;
  height: 4px;
  background: linear-gradient(90deg, var(--primary-color), var(--secondary-color));
  border-radius: 2px;
}

.feature-item::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 4px;
  background: linear-gradient(90deg, var(--primary-color), var(--secondary-color));
}

.feature-item:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-tech);
  border-color: var(--primary-light);
}

.feature-icon {
  width: 200px;
  height: 200px;
  background: linear-gradient(135deg, var(--primary-lighter), white);
  border-radius: 60px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1.5rem;
  box-shadow: 0 4px 15px rgba(59, 130, 246, 0.1);
  transition: var(--transition-fast);
  overflow: hidden;
}

.feature-icon-img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  padding: 10px;
  transition: var(--transition-fast);
}

.feature-item:hover .feature-icon {
  transform: scale(1.1);
  box-shadow: 0 6px 20px rgba(59, 130, 246, 0.2);
}

.feature-item:hover .feature-icon-img {
  transform: scale(1.05);
}

.feature-item h3 {
  font-size: 1.5rem;
  margin-bottom: 1rem;
  color: var(--text-primary);
  text-align: center;
  width: 100%;
  margin-top: 0;
}

.feature-item p {
 color: #374151 !important;
 line-height: 1.7;
 font-size: 1rem;
 display: block !important;
 visibility: visible !important;
 opacity: 1 !important;
 position: static !important;
 text-align: center;
 margin-top: 0;
}

/* 响应式核心业务区域 */
@media (max-width: 1024px) {
  #core-business-grid {
    grid-template-columns: repeat(2, 1fr) !important;
    gap: 1.5rem !important;
  }
}

@media (max-width: 768px) {
  #core-business-grid {
    grid-template-columns: 1fr !important;
    gap: 1.5rem !important;
  }
  
  .features h2 {
    font-size: 2rem;
  }
}

/* 创始人介绍区域 */
.section {
  padding: 6rem 0;
}

/* 确保创始人简介文字始终可见 */
.section h2,
.section p {
  opacity: 1 !important;
  transform: translateY(0) !important;
}

.grid-2 {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 3rem;
}

.section h2 {
  font-size: 2.5rem;
  margin-bottom: 2rem;
  position: relative;
  display: inline-block;
  background: linear-gradient(90deg, var(--text-primary), var(--primary-color));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.section h2::after {
  content: '';
  position: absolute;
  bottom: -10px;
  left: 0;
  width: 70px;
  height: 4px;
  background: linear-gradient(90deg, var(--primary-color), var(--secondary-color));
  border-radius: 2px;
}

.section h3 {
  font-size: 1.5rem;
  margin-bottom: 1rem;
  color: var(--primary-color);
}

.section p {
  margin-bottom: 1.5rem;
  color: var(--text-secondary);
  line-height: 1.7;
}

.section .btn-primary {
  background: linear-gradient(90deg, var(--primary-color), var(--secondary-color));
  border: none;
  box-shadow: var(--glow-primary);
  padding: 0.75rem 1.5rem;
  border-radius: var(--radius-lg);
}

.section .btn-primary:hover {
  box-shadow: var(--glow-primary), var(--shadow-md);
  transform: translateY(-2px);
}

/* 头像样式 */
.section .feature-icon {
  margin: 0 auto 1.5rem;
  width: 150px;
  height: 150px;
  font-size: 4rem;
  border: 5px solid var(--primary-lighter);
}

/* 响应式创始人区域 */
@media (max-width: 768px) {
  .grid-2 {
    grid-template-columns: 1fr;
  }
  
  .section h2 {
    font-size: 2rem;
  }

  .section .feature-icon {
    width: 120px;
    height: 120px;
    font-size: 3.5rem;
  }
}

/* 英雄区域 */
.hero {
  background: linear-gradient(135deg, var(--bg-tertiary) 0%, #1e293b 100%);
  color: white;
  padding: 6rem 0;
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: radial-gradient(circle at 30% 50%, rgba(59, 130, 246, 0.2) 0%, transparent 50%),
              radial-gradient(circle at 70% 30%, rgba(139, 92, 246, 0.2) 0%, transparent 50%);
  z-index: 0;
  animation: pulse 8s ease-in-out infinite;
}

@keyframes pulse {
  0% {
    opacity: 0.5;
  }
  50% {
    opacity: 0.8;
  }
  100% {
    opacity: 0.5;
  }
}

.hero::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-image: 
    linear-gradient(to right, rgba(59, 130, 246, 0.1) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(59, 130, 246, 0.1) 1px, transparent 1px);
  background-size: 20px 20px;
  z-index: 0;
  animation: gridMove 15s linear infinite;
}

@keyframes gridMove {
  0% {
    background-position: 0 0;
  }
  100% {
    background-position: 20px 20px;
  }
}

.hero .container {
  position: relative;
  z-index: 1;
}

.hero-title {
  font-size: 3.5rem;
  font-weight: 800;
  margin-bottom: 1rem;
  background: linear-gradient(90deg, white, var(--primary-light));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  line-height: 1.2;
}

.hero-subtitle {
  font-size: 1.25rem;
  max-width: 800px;
  margin-bottom: 2.5rem;
  color: rgba(255, 255, 255, 0.9);
}

.hero-actions {
  display: flex;
  gap: 1.5rem;
  flex-wrap: wrap;
}

.hero-actions .btn {
  padding: 0.875rem 2rem;
  font-size: 1.125rem;
  border-radius: var(--radius-lg);
}

.hero-actions .btn-primary {
  background: linear-gradient(90deg, var(--primary-color), var(--secondary-color));
  border: none;
  box-shadow: var(--glow-primary);
  transition: var(--transition-slow);
}

.hero-actions .btn-primary:hover {
  box-shadow: var(--glow-primary), var(--shadow-md);
  transform: translateY(-2px);
}

.hero-actions .btn-secondary {
  background-color: rgba(255, 255, 255, 0.1);
  color: white;
  border-color: rgba(255, 255, 255, 0.3);
  backdrop-filter: blur(10px);
  transition: var(--transition-slow);
}

.hero-actions .btn-secondary:hover {
  background-color: rgba(255, 255, 255, 0.2);
  border-color: rgba(255, 255, 255, 0.5);
  transform: translateY(-2px);
}

/* 响应式英雄区域 */
@media (max-width: 768px) {
  .hero {
    padding: 4rem 0;
  }
  
  .hero-title {
    font-size: 2.5rem;
  }
}

/* 成功案例区域 */
.section:nth-child(4) {
  background: var(--bg-secondary);
  position: relative;
  overflow: hidden;
}

.section:nth-child(4)::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: radial-gradient(circle at 70% 70%, rgba(59, 130, 246, 0.05) 0%, transparent 70%);
  z-index: 0;
}

.section:nth-child(4) .container {
  position: relative;
  z-index: 1;
}

.grid-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
}

/* 联系我们区域 */
.section:last-child {
  position: relative;
  overflow: hidden;
}

.section:last-child::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: radial-gradient(circle at 30% 30%, rgba(59, 130, 246, 0.05) 0%, transparent 70%);
  z-index: 0;
}

.section:last-child .container {
  position: relative;
  z-index: 1;
  text-align: center;
}

.section:last-child h2 {
  display: inline-block;
  margin: 0 auto 1.5rem;
}

.section:last-child h2::after {
  left: 50%;
  transform: translateX(-50%);
}

/* 响应式成功案例和联系我们区域 */
@media (max-width: 1024px) {
  .grid-3 {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 768px) {
  .grid-3 {
    grid-template-columns: 1fr;
  }
}

/* 特色区域 */
.features {
  background: var(--bg-secondary);
  padding: 4rem 0;
}

.feature-item {
  text-align: center;
  padding: var(--spacing-lg);
}



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

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

/* 响应式设计 */
@media (max-width: 768px) {
  .grid-2, .grid-3, .grid-4 {
    grid-template-columns: 1fr;
  }
  
  .hero-title {
    font-size: 2rem;
  }
  
  .container {
    padding: 0 var(--spacing-sm);
  }
}

/* 头部导航样式 */
.header {
  background: var(--bg-primary);
  border-bottom: 1px solid var(--border-light);
  padding: 1rem 0;
  position: sticky;
  top: 0;
  z-index: 100;
  box-shadow: 0 1px 3px rgba(0,0,0,0.1);
}

.header-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 1rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

    .logo {
        display: flex;
        align-items: center;
        gap: 0.75rem;
        text-decoration: none;
        transition: all 0.3s ease;
    }
    
    .logo:hover {
        transform: translateY(-1px);
    }
    
    .logo-image {
        height: 40px;
        width: auto;
        filter: drop-shadow(0 2px 4px rgba(59, 130, 246, 0.2));
        transition: all 0.3s ease;
    }
    
    .logo:hover .logo-image {
        filter: drop-shadow(0 4px 8px rgba(59, 130, 246, 0.4));
        transform: scale(1.05);
    }
    
    .logo-text {
        font-size: 1.5rem;
        font-weight: 700;
        background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
        -webkit-background-clip: text;
        background-clip: text;
        color: transparent;
        display: none;
    }
    
    /* 移动端显示文字logo */
    @media (max-width: 768px) {
        .logo-image {
            height: 32px;
        }
        
        .logo-text {
            display: block;
            font-size: 1.25rem;
        }
    }

.nav-menu {
  display: flex;
  list-style: none;
  margin: 0;
  padding: 0;
  gap: 2rem;
}

.nav-menu a {
  text-decoration: none;
  color: var(--text-primary);
  font-weight: 500;
  transition: color 0.2s;
}

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

.mobile-menu-toggle {
  display: none;
  background: none;
  border: none;
  font-size: 1.5rem;
  cursor: pointer;
  color: var(--text-primary);
}

@media (max-width: 768px) {
  .nav-menu {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--bg-primary);
    border-top: 1px solid var(--border-light);
    flex-direction: column;
    padding: 1rem;
    gap: 1rem;
  }
  
  .nav-menu.active {
    display: flex;
  }
  
  .mobile-menu-toggle {
    display: block;
  }
}

/* 页脚样式 */
.footer {
  background: #111827;
  color: white;
  padding: 3rem 0 1.5rem;
}

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

.footer-section h3 {
  color: white;
  margin-bottom: 1rem;
  font-size: 1.125rem;
}

.footer-section ul {
  list-style: none;
  padding: 0;
  margin: 0;
}

.footer-section ul li {
  margin-bottom: 0.5rem;
}

.footer-section ul li a {
  color: #d1d5db;
  transition: color 0.2s ease;
}

.footer-section ul li a:hover {
  color: white;
}

.social-links {
  margin-top: 1rem;
}

.social-links span {
  display: block;
  margin-bottom: 0.5rem;
  color: #9ca3af;
}

.footer-bottom {
  border-top: 1px solid #374151;
  padding-top: 1.5rem;
  text-align: center;
  color: #9ca3af;
}

@media (max-width: 768px) {
  .footer-content {
    grid-template-columns: 1fr;
    text-align: center;
  }
}

/* 文本居中 */
.text-center {
  text-align: center;
}

/* 工具提示 */
.tooltip {
  position: relative;
  display: inline-block;
}

.tooltip .tooltiptext {
  visibility: hidden;
  width: 120px;
  background-color: #555;
  color: #fff;
  text-align: center;
  border-radius: 6px;
  padding: 5px;
  position: absolute;
  z-index: 1;
  bottom: 125%;
  left: 50%;
  margin-left: -60px;
  opacity: 0;
  transition: opacity 0.3s;
}

.tooltip:hover .tooltiptext {
  visibility: visible;
  opacity: 1;
}