:root{
      /* 品牌色彩保持不变 */
      --brand-primary: #3b82f6;      /* 主蓝色 */
      --brand-secondary: #8b5cf6;    /* 辅助紫色 */
      --brand-gradient: linear-gradient(135deg, var(--brand-primary), var(--brand-secondary));
      --accent: #f97316;             /* 亮橙色用于突出按钮和交互元素 */
      --accent-hover: #ea580c;
      --ink: #0f172a;                 /* 深色文字 */
      --muted: #64748b;               /* 次级文字 */
      --light-muted: #94a3b8;         /* 更浅的文字 */
      --bg-dark: #0f172a;             /* 顶部/底部深色 */
      --bg-light: #f8fafc;            /* 浅色背景 */
      --card: #ffffff;                /* 白卡片 */
      --border: #e2e8f0;              /* 边框色 */
      --radius: 12px;
      --shadow: 0 10px 25px -5px rgba(59, 130, 246, 0.1), 0 8px 10px -6px rgba(59, 130, 246, 0.05);
      --shadow-hover: 0 20px 25px -5px rgba(59, 130, 246, 0.1), 0 10px 10px -5px rgba(59, 130, 246, 0.04);
      --maxw: 1200px;
      --transition: all 0.3s ease;
    }
    *{box-sizing:border-box}
    html,body{margin:0;height:100%;font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Inter,"Helvetica Neue",Arial,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans CJK SC",sans-serif;color:var(--ink);background:var(--bg-light);scroll-behavior: smooth;}
    a{color:inherit;text-decoration:none}
    img{max-width:100%;display:block}
    .container{max-width:var(--maxw);margin:0 auto;padding:0 20px}

    /* 顶部导航 - 保持不变 */
    header{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.92);backdrop-filter:saturate(180%) blur(12px);border-bottom:1px solid var(--border);transition: var(--transition);}
    header.scrolled {box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.05);}
    .nav{display:flex;align-items:center;justify-content:space-between;height:72px}
    .logo{display:flex;gap:10px;align-items:center;font-weight:800;letter-spacing:.3px;font-size:1.25rem;color:var(--brand-primary);}
    .logo .dot{width:12px;height:12px;background:var(--brand-gradient);border-radius:50%}
    nav ul{display:flex;gap:32px;list-style:none;margin:0;padding:0}
    nav a{font-size:15px;color:var(--ink);font-weight:500;position:relative;padding:5px 0;transition: var(--transition);}
    nav a:hover{color:var(--brand-primary);}
    nav a:after{content:'';position:absolute;bottom:0;left:0;width:0;height:2px;background:var(--brand-gradient);transition: var(--transition);}
    nav a:hover:after{width:100%;}
    .cta{display:inline-flex;align-items:center;gap:10px;background:var(--accent);color:#fff;padding:10px 20px;border-radius:999px;box-shadow:0 4px 6px -1px rgba(249, 115, 22, 0.2);font-weight:500;transition: var(--transition);}
    .cta:hover{transform:translateY(-2px);background:var(--accent-hover);box-shadow:0 10px 15px -3px rgba(249, 115, 22, 0.2);}

    /* 面包屑导航 - 保持 */
    .breadcrumb {
      padding: 20px 0;
      font-size: 14px;
      color: var(--muted);
      background: var(--bg-light);
      border-bottom: 1px solid var(--border);
    }
    .breadcrumb-container {
      max-width: var(--maxw);
      margin: 0 auto;
      padding: 0 20px;
      display: flex;
      flex-wrap: wrap;
      gap: 8px;
    }
    .breadcrumb a {
      color: var(--muted);
      transition: var(--transition);
    }
    .breadcrumb a:hover {
      color: var(--brand-primary);
    }
    .breadcrumb span.separator {
      color: var(--light-muted);
    }
    .breadcrumb span.current {
      color: var(--ink);
      font-weight: 500;
    }

    /* 主要内容区域 */
    .main-content {
      padding: 60px 0;
      background: var(--bg-light);
    }
    .content-wrapper {
      display: flex;
      flex-direction: column;
      gap: 30px;
    }
    
    .section-head {
      margin-bottom: 20px;
    }
    
    .section-head h2 {
      font-size: 28px;
      margin: 0 0 10px;
      color: var(--ink);
    }
    
    .section-desc {
      font-size: 16px;
      color: var(--muted);
      margin: 0;
    }

    /* 重新设计的文章分类 - 调整尺寸适配文章宽度并删除篇数 */
    .category-section {
      background: var(--card);
      border-radius: var(--radius);
      padding: 20px;
      box-shadow: var(--shadow);
      border: 1px solid var(--border);
      margin-bottom: 20px;
    }
    .category-grid {
      display: grid;
      grid-template-columns: repeat(6, 1fr);
      gap: 15px;
    }
    .category-item {
      display: flex;
      flex-direction: column;
      align-items: center;
      padding: 18px 10px;
      border-radius: 8px;
      background: var(--bg-light);
      border: 1px solid var(--border);
      transition: var(--transition);
      text-align: center;
      height: 100%;
    }
    .category-item:hover {
      background: var(--brand-primary);
      color: white;
      transform: translateY(-3px);
      box-shadow: 0 4px 12px rgba(59, 130, 246, 0.2);
      border-color: transparent;
    }
    .category-icon {
      font-size: 24px;
      margin-bottom: 10px;
      color: var(--brand-primary);
      transition: var(--transition);
    }
    .category-item:hover .category-icon {
      color: white;
      transform: scale(1.1);
    }
    .category-name {
      font-size: 15px;
      font-weight: 500;
    }

    /* 新闻列表区域 */
    .news-list {
      display: flex;
      flex-direction: column;
      gap: 24px;
    }
    .news-item {
      display: grid;
      grid-template-columns: 220px 1fr;
      gap: 20px;
      background: var(--card);
      border-radius: var(--radius);
      overflow: hidden;
      box-shadow: var(--shadow);
      transition: var(--transition);
      border: 1px solid var(--border);
    }
    .news-item:hover {
      transform: translateY(-3px);
      box-shadow: var(--shadow-hover);
      border-color: transparent;
    }
    .news-image {
      position: relative;
      overflow: hidden;
      min-height: 140px;
    }
    .news-image img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      transition: var(--transition);
    }
    .news-item:hover .news-image img {
      transform: scale(1.05);
    }
    .news-content {
      padding: 20px 20px 20px 0;
      display: flex;
      flex-direction: column;
    }
    .news-meta {
      display: flex;
      align-items: center;
      gap: 15px;
      margin-bottom: 10px;
      color: var(--light-muted);
      font-size: 13px;
    }
    .news-category {
      display: inline-block;
      padding: 3px 10px;
      border-radius: 999px;
      font-size: 12px;
      font-weight: 500;
      background: #e0e7ff;
      color: #3b82f6;
    }
    .news-title {
      font-size: 18px;
      margin: 0 0 10px;
      transition: var(--transition);
    }
    .news-item:hover .news-title {
      color: var(--brand-primary);
    }
    .news-excerpt {
      color: var(--muted);
      font-size: 15px;
      line-height: 1.6;
      margin: 0 0 15px;
      flex-grow: 1;
    }
    .news-readmore {
      align-self: flex-start;
      display: inline-flex;
      align-items: center;
      gap: 5px;
      color: var(--brand-primary);
      font-weight: 500;
      font-size: 14px;
      transition: var(--transition);
    }
    .news-readmore:hover {
      color: var(--brand-secondary);
    }
    .news-readmore i {
      transition: var(--transition);
    }
    .news-item:hover .news-readmore i {
      transform: translateX(3px);
    }

    /* 分页导航 */
    .pagination {
      display: flex;
      justify-content: center;
      align-items: center;
      gap: 8px;
      margin-top: 40px;
      padding: 10px;
    }
    .pagination a, .pagination span {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      width: 36px;
      height: 36px;
      border-radius: 6px;
      font-size: 14px;
      transition: var(--transition);
    }
    .pagination a {
      color: var(--ink);
      background: var(--card);
      border: 1px solid var(--border);
    }
    .pagination a:hover {
      background: var(--brand-primary);
      color: white;
      border-color: var(--brand-primary);
    }
    .pagination span.current {
      background: var(--brand-primary);
      color: white;
      font-weight: 500;
    }
    .pagination a.prev-next {
      width: auto;
      padding: 0 12px;
    }

    /* 底部 - 保持不变 */
    footer{background:var(--bg-dark);color:#e2e8f0;padding:80px 0 40px;position:relative;}
    footer:before{
      content:'';
      position:absolute;
      top:0;
      left:0;
      width:100%;
      height:8px;
      background:var(--brand-gradient);
    }
    .foot{display:grid;grid-template-columns:1.5fr 1fr 1fr;gap:40px;}
    .foot-col h4{margin:0 0 20px;font-size:18px;color:white;position:relative;display:inline-block;}
    .foot-col h4:after{
      content:'';
      position:absolute;
      bottom:-6px;
      left:0;
      width:30px;
      height:2px;
      background:var(--accent);
    }
    .foot-col p{margin:0 0 16px;line-height:1.7;color:#94a3b8;}
    .contact-info{display:flex;align-items:center;gap:12px;margin-bottom:16px;color:#94a3b8;}
    .contact-info i{color:var(--accent);width:20px;text-align:center;}
    .social-links{display:flex;gap:12px;margin-top:20px;}
    .social-links a{width:36px;height:36px;border-radius:50%;background:rgba(255,255,255,0.1);display:flex;align-items:center;justify-content:center;color:white;transition: var(--transition);}
    .social-links a:hover{background:var(--accent);transform: translateY(-3px);}
    .foot-nav{display:flex;flex-wrap:wrap;gap:10px 20px;}
    .foot-nav a{color:#94a3b8;transition: var(--transition);}
    .foot-nav a:hover{color:white;}
    .copyright{margin-top:40px;border-top:1px solid rgba(255,255,255,.1);padding-top:24px;color:#94a3b8;font-size:14px;text-align:center;}

    /* 响应式调整 */
    @media (max-width: 1100px) {
      .content-wrapper {
        grid-template-columns: 1fr;
      }
    }
    @media (max-width: 768px) {
      nav ul{display:none}
      .news-item {
        grid-template-columns: 1fr;
      }
      .news-image {
        min-height: 180px;
      }
      .news-content {
        padding: 20px;
      }
      .category-grid {
        grid-template-columns: repeat(3, 1fr);
      }
    }
    @media (max-width: 480px) {
      .pagination a, .pagination span {
        width: 32px;
        height: 32px;
        font-size: 13px;
      }
      .news-meta {
        flex-wrap: wrap;
      }
      .category-grid {
        grid-template-columns: repeat(2, 1fr);
      }
    }