/* 霓虹赛博朋克风格 */
:root {
    --bg-dark: #0a0a0a;
    --neon-blue: #0ff0fc;
    --neon-pink: #ff2a6d;
    --neon-purple: #bc13fe;
    --text-glow: 0 0 5px currentColor;
    --box-glow: 0 0 15px currentColor;
    --transition: all 0.3s cubic-bezier(0.65, 0.05, 0.36, 1);
  }
  
  * {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Rajdhani', 'Arial Narrow', sans-serif;
  }
  
  body {
    background-color: var(--bg-dark);
    color: white;
    line-height: 1.7;
    min-height: 100vh;
    overflow-x: hidden;
    background-image: 
      radial-gradient(circle at 10% 20%, rgba(11, 255, 252, 0.05) 0%, transparent 20%),
      radial-gradient(circle at 90% 80%, rgba(255, 42, 109, 0.05) 0%, transparent 20%);
  }
  
  a {
    color: var(--neon-blue);
    text-decoration: none;
    text-shadow: var(--text-glow);
    transition: var(--transition);
  }
  
  a:hover {
    color: var(--neon-pink);
  }
  
  .container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
  }
  
  /* 霓虹边框头部 */
  header {
    background-color: rgba(10, 10, 10, 0.8);
    backdrop-filter: blur(10px);
    padding: 20px 0;
    position: sticky;
    top: 0;
    z-index: 1000;
    border-bottom: 1px solid var(--neon-purple);
    box-shadow: 0 0 20px rgba(188, 19, 254, 0.3);
  }
  
  .header-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
  }
  
  .logo {
    font-size: 28px;
    font-weight: 700;
    background: linear-gradient(90deg, var(--neon-blue), var(--neon-pink));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    letter-spacing: 2px;
    text-shadow: 0 0 10px rgba(15, 240, 252, 0.5);
  }
  
  nav ul {
    display: flex;
    list-style: none;
    gap: 25px;
  }
  
  nav ul li a {
    padding: 8px 15px;
    position: relative;
    font-weight: 600;
    letter-spacing: 1px;
  }
  
  nav ul li a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--neon-pink);
    transition: var(--transition);
  }
  
  nav ul li a:hover::after {
    width: 100%;
  }
  
  /* 网格内容区域 */
  .main-content {
    background-color: rgba(15, 15, 15, 0.7);
    border: 1px solid rgba(188, 19, 254, 0.3);
    border-radius: 5px;
    padding: 30px;
    margin: 30px 0;
    box-shadow: 0 0 30px rgba(15, 240, 252, 0.1);
    position: relative;
    overflow: hidden;
  }
  
  .main-content::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: 
      linear-gradient(45deg, 
        transparent 48%, 
        rgba(15, 240, 252, 0.1) 49%, 
        rgba(15, 240, 252, 0.1) 51%, 
        transparent 52%);
    background-size: 10px 10px;
    pointer-events: none;
    opacity: 0.3;
  }
  
  .section-title {
    font-size: 24px;
    margin-bottom: 25px;
    padding-bottom: 15px;
    border-bottom: 1px solid var(--neon-blue);
    color: var(--neon-blue);
    text-shadow: var(--text-glow);
    position: relative;
  }
  
  .section-title::after {
    content: '';
    position: absolute;
    bottom: -1px;
    left: 0;
    width: 100px;
    height: 1px;
    background: linear-gradient(90deg, var(--neon-blue), transparent);
  }
  
  /* 霓虹卡片 */
  .article-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 25px;
  }
  
  .article-card {
    background-color: rgba(20, 20, 20, 0.8);
    border: 1px solid rgba(15, 240, 252, 0.2);
    border-radius: 5px;
    overflow: hidden;
    transition: var(--transition);
    position: relative;
  }
  
  .article-card:hover {
    transform: translateY(-5px);
    border-color: var(--neon-pink);
    box-shadow: 0 5px 20px rgba(255, 42, 109, 0.3);
  }
  
  .card-image {
    width: 100%;
    height: 180px;
    object-fit: cover;
    border-bottom: 1px solid rgba(15, 240, 252, 0.2);
    filter: grayscale(30%) contrast(110%);
    transition: var(--transition);
  }
  
  .article-card:hover .card-image {
    filter: grayscale(0%) contrast(120%);
  }
  
  .card-body {
    padding: 20px;
  }
  
  .card-title {
    font-size: 18px;
    margin-bottom: 12px;
    font-weight: 600;
    color: white;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
  }
  
  .card-meta {
    display: flex;
    justify-content: space-between;
    font-size: 13px;
    color: #aaa;
    margin-top: 15px;
  }
  
  /* 分类标签 */
  .category-tag {
    display: inline-block;
    padding: 3px 10px;
    background-color: rgba(188, 19, 254, 0.2);
    color: var(--neon-purple);
    border-radius: 3px;
    font-size: 12px;
    margin-bottom: 10px;
    border: 1px solid var(--neon-purple);
  }
  
  /* 文章详情页 */
  .article-detail {
    max-width: 800px;
    margin: 0 auto;
    background-color: rgba(15, 15, 15, 0.8);
    border: 1px solid rgba(15, 240, 252, 0.3);
    border-radius: 5px;
    padding: 40px;
    box-shadow: 0 0 30px rgba(15, 240, 252, 0.1);
  }
  
  .article-header {
    margin-bottom: 40px;
    text-align: center;
  }
  
  .article-title {
    font-size: 32px;
    margin-bottom: 20px;
    line-height: 1.3;
    color: white;
    text-shadow: 0 0 10px rgba(255, 255, 255, 0.3);
  }
  
  .article-meta {
    display: flex;
    justify-content: center;
    gap: 25px;
    color: #aaa;
    margin-bottom: 25px;
    flex-wrap: wrap;
  }
  
  .article-image {
    width: 100%;
    max-height: 450px;
    object-fit: cover;
    border-radius: 5px;
    margin-bottom: 30px;
    border: 1px solid rgba(15, 240, 252, 0.3);
    box-shadow: 0 0 20px rgba(15, 240, 252, 0.1);
  }
  
  .article-content {
    line-height: 1.8;
    font-size: 16px;
  }
  
  .article-content p {
    margin-bottom: 20px;
  }
  
  /* 分页导航 */
  .pagination {
    display: flex;
    justify-content: center;
    gap: 15px;
    margin-top: 40px;
  }
  
  .pagination a {
    padding: 10px 20px;
    border-radius: 3px;
    background-color: rgba(15, 240, 252, 0.1);
    border: 1px solid var(--neon-blue);
    transition: var(--transition);
  }
  
  .pagination a:hover {
    background-color: var(--neon-blue);
    color: black;
  }
  
  /* 友情链接 */
  .friend-links {
    background-color: rgba(20, 20, 20, 0.8);
    border-radius: 5px;
    padding: 25px;
    margin: 30px 0;
    border: 1px solid rgba(255, 42, 109, 0.3);
  }
  
  .friend-links h3 {
    margin-bottom: 20px;
    color: var(--neon-pink);
    font-size: 20px;
    text-shadow: var(--text-glow);
  }
  
  .friend-links-container {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
  }
  
  .friend-links-container a {
    padding: 8px 15px;
    background-color: rgba(255, 42, 109, 0.1);
    border-radius: 3px;
    font-size: 14px;
    border: 1px solid var(--neon-pink);
  }
  
  .friend-links-container a:hover {
    background-color: var(--neon-pink);
    color: black;
  }
  
  /* 页脚 */
  footer {
    background-color: rgba(10, 10, 10, 0.9);
    padding: 30px 0;
    text-align: center;
    margin-top: 50px;
    border-top: 1px solid var(--neon-purple);
    box-shadow: 0 0 20px rgba(188, 19, 254, 0.2);
  }
  
  .copyright {
    font-size: 14px;
    color: #777;
  }
  
  /* 响应式设计 */
  @media (max-width: 768px) {
    .header-content {
      flex-direction: column;
      gap: 20px;
    }
    
    nav ul {
      flex-wrap: wrap;
      justify-content: center;
      gap: 10px;
    }
    
    .article-grid {
      grid-template-columns: 1fr;
    }
    
    .article-title {
      font-size: 26px;
    }
    
    .article-meta {
      gap: 15px;
    }
    
    .article-detail {
      padding: 25px;
    }
  }
  
  /* 霓虹动画效果 */
  @keyframes neon-pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.7; }
  }
  
  .neon-pulse {
    animation: neon-pulse 2s infinite;
  }