/* 浆果红暗黑主题 */
:root {
    --primary: #ff2d55;
    --primary-dark: #d42045;
    --secondary: #6d214f;
    --dark: #1a1a1a;
    --darker: #111;
    --light: #f8f9fa;
    --gray: #333;
    --card-bg: #222;
    --text: #e0e0e0;
    --text-secondary: #aaa;
    --transition: all 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
  }
  
  /* 现代无衬线字体系统 */
  body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 
                 Oxygen, Ubuntu, Cantarell, 'Open Sans', 'Helvetica Neue', sans-serif;
    background-color: var(--darker);
    color: var(--text);
    line-height: 1.7;
    margin: 0;
    padding: 0;
    -webkit-font-smoothing: antialiased;
    text-rendering: optimizeLegibility;
  }
  
  /* 链接样式 */
  a {
    color: var(--primary);
    text-decoration: none;
    transition: var(--transition);
  }
  
  a:hover {
    color: var(--primary-dark);
    text-decoration: underline;
  }
  
  /* 容器布局 */
  .container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
  }
  
  /* 现代头部设计 */
  .header {
    background-color: rgba(26, 26, 26, 0.9);
    backdrop-filter: blur(10px);
    position: sticky;
    top: 0;
    z-index: 1000;
    border-bottom: 1px solid var(--gray);
    padding: 1rem 0;
  }
  
  .header-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
  }
  
  .logo {
    font-size: 1.8rem;
    font-weight: 800;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    letter-spacing: -0.5px;
  }
  
  /* 导航菜单 */
  .nav-menu {
    display: flex;
    gap: 1.5rem;
  }
  
  .nav-item {
    position: relative;
    padding: 0.5rem 0;
  }
  
  .nav-item:after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--primary);
    transition: var(--transition);
  }
  
  .nav-item:hover:after {
    width: 100%;
  }
  
  /* 主要内容卡片 */
  .main-card {
    background: var(--card-bg);
    border-radius: 12px;
    padding: 2rem;
    margin: 2rem 0;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
    border: 1px solid var(--gray);
  }
  
  .section-title {
    font-size: 1.5rem;
    margin-bottom: 1.5rem;
    position: relative;
    padding-bottom: 0.75rem;
    color: var(--light);
  }
  
  .section-title:after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 60px;
    height: 3px;
    background: linear-gradient(90deg, var(--primary), transparent);
  }
  
  /* 网格布局系统 */
  .grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 1.5rem;
  }
  
  /* 文章卡片 */
  .article-card {
    background: var(--card-bg);
    border-radius: 10px;
    overflow: hidden;
    transition: var(--transition);
    border: 1px solid var(--gray);
  }
  
  .article-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 35px rgba(255, 45, 85, 0.1);
    border-color: var(--primary);
  }
  
  .card-image {
    width: 100%;
    height: 180px;
    object-fit: cover;
    border-bottom: 1px solid var(--gray);
  }
  
  .card-body {
    padding: 1.25rem;
  }
  
  .card-title {
    font-size: 1.1rem;
    margin-bottom: 0.75rem;
    font-weight: 600;
    color: var(--light);
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
  }
  
  .card-meta {
    display: flex;
    justify-content: space-between;
    font-size: 0.85rem;
    color: var(--text-secondary);
    margin-top: 1rem;
  }
  
  /* 分类标签 */
  .category-tag {
    display: inline-block;
    padding: 0.25rem 0.75rem;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    color: white;
    border-radius: 20px;
    font-size: 0.75rem;
    font-weight: 600;
    margin-bottom: 0.75rem;
  }
  
  /* 文章详情页 */
  .article-header {
    text-align: center;
    margin-bottom: 2.5rem;
  }
  
  .article-title {
    font-size: 2.2rem;
    line-height: 1.3;
    margin-bottom: 1rem;
    color: var(--light);
  }
  
  .article-meta {
    display: flex;
    justify-content: center;
    gap: 1.5rem;
    flex-wrap: wrap;
    color: var(--text-secondary);
    margin-bottom: 1.5rem;
    font-size: 0.9rem;
  }
  
  .article-image {
    width: 100%;
    max-height: 450px;
    object-fit: cover;
    border-radius: 10px;
    margin: 2rem 0;
    box-shadow: 0 15px 40px rgba(0, 0, 0, 0.4);
  }
  
  .article-content {
    line-height: 1.8;
    font-size: 1.05rem;
  }
  
  .article-content p {
    margin-bottom: 1.5rem;
  }
  
  .article-content img {
    max-width: 100%;
    height: auto;
    border-radius: 8px;
    margin: 1.5rem 0;
  }
  
  /* 分页导航 */
  .pagination {
    display: flex;
    justify-content: center;
    gap: 1rem;
    margin-top: 3rem;
  }
  
  .pagination a {
    padding: 0.75rem 1.5rem;
    border-radius: 30px;
    background: var(--gray);
    font-weight: 500;
    transition: var(--transition);
  }
  
  .pagination a:hover {
    background: var(--primary);
    color: white;
  }
  
  /* 友情链接 */
  .friend-links {
    background: var(--card-bg);
    border-radius: 10px;
    padding: 1.5rem;
    margin: 2rem 0;
  }
  
  .friend-links h3 {
    margin-bottom: 1rem;
    color: var(--light);
  }
  
  .friend-links-container {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
  }
  
  .friend-links-container a {
    padding: 0.5rem 1rem;
    background: var(--gray);
    border-radius: 20px;
    font-size: 0.85rem;
    transition: var(--transition);
  }
  
  .friend-links-container a:hover {
    background: var(--primary);
    color: white;
    text-decoration: none;
  }
  
  /* 页脚样式 */
  .footer {
    background: var(--dark);
    padding: 2.5rem 0;
    margin-top: 3rem;
    border-top: 1px solid var(--gray);
  }
  
  .copyright {
    text-align: center;
    color: var(--text-secondary);
    font-size: 0.9rem;
  }
  
  /* 响应式设计 */
  @media (max-width: 768px) {
    .header-container {
      flex-direction: column;
      gap: 1rem;
    }
    
    .nav-menu {
      flex-wrap: wrap;
      justify-content: center;
    }
    
    .article-title {
      font-size: 1.8rem;
    }
    
    .article-meta {
      gap: 1rem;
    }
    
    .grid {
      grid-template-columns: 1fr;
    }
  }
  
  /* 动画效果 */
  @keyframes fadeIn {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
  }
  
  .main-content {
    animation: fadeIn 0.6s ease-out forwards;
  }