/* 赛博未来风格 - 蓝紫渐变 */
:root {
    --cyber-blue: #00f0ff;
    --cyber-purple: #8a2be2;
    --dark-bg: #0a0a1a;
    --darker-bg: #050510;
    --card-bg: rgba(15, 15, 35, 0.7);
    --text-main: #e0e0ff;
    --text-secondary: #b0b0d0;
    --glow-effect: 0 0 15px rgba(138, 43, 226, 0.5);
    --transition-fast: all 0.2s ease-out;
    --transition-slow: all 0.5s cubic-bezier(0.25, 1, 0.5, 1);
  }
  
  * {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Rajdhani', 'Orbitron', sans-serif;
  }
  
  body {
    background: linear-gradient(135deg, var(--darker-bg), var(--dark-bg));
    color: var(--text-main);
    line-height: 1.8;
    overflow-x: hidden;
  }
  
  /* 霓虹边框效果 */
  .neon-border {
    position: relative;
    border-radius: 12px;
  }
  
  .neon-border::before {
    content: '';
    position: absolute;
    inset: 0;
    border-radius: 12px;
    padding: 2px;
    background: linear-gradient(45deg, var(--cyber-blue), var(--cyber-purple));
    -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
    -webkit-mask-composite: xor;
    mask-composite: exclude;
    pointer-events: none;
  }
  
  /* 赛博风格头部 */
  header {
    background: rgba(5, 5, 16, 0.9);
    backdrop-filter: blur(10px);
    padding: 1.5rem 0;
    position: sticky;
    top: 0;
    z-index: 1000;
    border-bottom: 1px solid rgba(0, 240, 255, 0.2);
  }
  
  .header-grid {
    display: grid;
    grid-template-columns: auto 1fr;
    align-items: center;
    gap: 2rem;
  }
  
  .logo {
    font-size: 2rem;
    font-weight: 700;
    background: linear-gradient(to right, var(--cyber-blue), var(--cyber-purple));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    letter-spacing: 2px;
    text-transform: uppercase;
  }
  
  /* 导航菜单 */
  .nav-grid {
    display: grid;
    grid-auto-flow: column;
    justify-content: end;
    gap: 1.5rem;
  }
  
  .nav-link {
    position: relative;
    padding: 0.5rem 0;
    font-weight: 600;
    letter-spacing: 1px;
    transition: var(--transition-fast);
  }
  
  .nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: linear-gradient(to right, var(--cyber-blue), var(--cyber-purple));
    transition: var(--transition-fast);
  }
  
  .nav-link:hover {
    color: var(--cyber-blue);
  }
  
  .nav-link:hover::after {
    width: 100%;
  }
  
  /* 主要内容区 */
  .main-container {
    display: grid;
    grid-template-columns: 1fr;
    gap: 2rem;
    padding: 3rem 0;
  }
  
  .section-title {
    font-size: 1.8rem;
    margin-bottom: 1.5rem;
    position: relative;
    display: inline-block;
  }
  
  .section-title::after {
    content: '';
    position: absolute;
    bottom: -8px;
    left: 0;
    width: 60px;
    height: 3px;
    background: linear-gradient(to right, var(--cyber-blue), var(--cyber-purple));
  }
  
  /* 赛博卡片 */
  .cyber-card {
    background: var(--card-bg);
    backdrop-filter: blur(8px);
    border-radius: 12px;
    overflow: hidden;
    transition: var(--transition-slow);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
  }
  
  .cyber-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 40px rgba(0, 240, 255, 0.2);
  }
  
  .card-image {
    width: 100%;
    height: 200px;
    object-fit: cover;
    border-bottom: 1px solid rgba(0, 240, 255, 0.2);
  }
  
  .card-content {
    padding: 1.5rem;
  }
  
  .card-title {
    font-size: 1.3rem;
    margin-bottom: 0.8rem;
    background: linear-gradient(to right, var(--cyber-blue), var(--text-main));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
  }
  
  .card-meta {
    display: flex;
    justify-content: space-between;
    font-size: 0.9rem;
    color: var(--text-secondary);
    margin-top: 1rem;
  }
  
  /* 文章网格布局 */
  .article-matrix {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 1.5rem;
  }
  
  /* 文章详情页 */
  .article-detail {
    max-width: 900px;
    margin: 0 auto;
  }
  
  .article-header {
    text-align: center;
    margin-bottom: 3rem;
  }
  
  .article-title {
    font-size: 2.2rem;
    margin-bottom: 1rem;
    background: linear-gradient(to right, var(--cyber-blue), var(--cyber-purple));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
  }
  
  .article-meta {
    display: flex;
    justify-content: center;
    gap: 1.5rem;
    flex-wrap: wrap;
    margin-bottom: 1.5rem;
    color: var(--text-secondary);
  }
  
  .article-image {
    width: 100%;
    max-height: 450px;
    object-fit: cover;
    border-radius: 12px;
    margin: 2rem 0;
    box-shadow: var(--glow-effect);
  }
  
  .article-content {
    font-size: 1.1rem;
    line-height: 1.9;
  }
  
  /* 分页导航 */
  .pagination {
    display: flex;
    justify-content: center;
    gap: 1rem;
    margin-top: 3rem;
  }
  
  .pagination a {
    padding: 0.8rem 1.5rem;
    border-radius: 30px;
    background: rgba(0, 240, 255, 0.1);
    border: 1px solid var(--cyber-blue);
    transition: var(--transition-fast);
  }
  
  .pagination a:hover {
    background: rgba(0, 240, 255, 0.3);
    box-shadow: 0 0 15px rgba(0, 240, 255, 0.3);
  }
  
  /* 友情链接 */
  .friend-links {
    margin: 3rem 0;
  }
  
  .links-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
    gap: 1rem;
  }
  
  .link-item {
    padding: 0.8rem;
    background: rgba(138, 43, 226, 0.1);
    border-radius: 8px;
    text-align: center;
    transition: var(--transition-fast);
    border: 1px solid rgba(138, 43, 226, 0.3);
  }
  
  .link-item:hover {
    background: rgba(138, 43, 226, 0.3);
    transform: translateY(-3px);
    box-shadow: var(--glow-effect);
  }
  
  /* 页脚 */
  footer {
    background: rgba(5, 5, 16, 0.9);
    padding: 2rem 0;
    text-align: center;
    margin-top: 3rem;
    border-top: 1px solid rgba(0, 240, 255, 0.2);
  }
  
  .copyright {
    font-size: 0.9rem;
    color: var(--text-secondary);
  }
  
  /* 响应式设计 */
  @media (max-width: 992px) {
    .header-grid {
      grid-template-columns: 1fr;
    }
    
    .nav-grid {
      justify-content: start;
    }
  }
  
  @media (max-width: 768px) {
    .article-matrix {
      grid-template-columns: 1fr;
    }
    
    .article-title {
      font-size: 1.8rem;
    }
    
    .links-grid {
      grid-template-columns: repeat(auto-fill, minmax(120px, 1fr));
    }
  }