* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        
        body {
            font-family: 'Noto Sans SC', sans-serif;
            background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
            color: #343a40;
            line-height: 1.6;
            min-height: 100vh;
            padding-bottom: 50px;
        }
        a {text-decoration: none;color:#000000; }
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        
        /* 头部样式 */
        header {
            background: linear-gradient(to right, #2c3e50, #4a6491);
            color: white;
            padding: 30px 0;
            box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
            margin-bottom: 40px;
        }
        
        .header-content {
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        
        .logo {
            display: flex;
            align-items: center;
        }
        
        .logo i {
            font-size: 2.5rem;
            margin-right: 15px;
            color: #4cc9f0;
        }
        
        .logo-text h1 {
            font-size: 2.2rem;
            font-weight: 700;
            letter-spacing: 1px;
        }
        
        .logo-text p {
            font-size: 1rem;
            opacity: 0.8;
            margin-top: 5px;
        }
        
        nav ul {
            display: flex;
            list-style: none;
        }
        
        nav li {
            margin-left: 30px;
        }
        
        nav a {
            color: white;
            text-decoration: none;
            font-size: 1.1rem;
            font-weight: 500;
            transition: all 0.3s ease;
            position: relative;
        }
        
        nav a:hover {
            color: #4cc9f0;
        }
        
        nav a::after {
            content: '';
            position: absolute;
            width: 0;
            height: 2px;
            bottom: -5px;
            left: 0;
            background-color: #4cc9f0;
            transition: width 0.3s ease;
        }
        
        nav a:hover::after {
            width: 100%;
        }
        
        /* 搜索区域 */
        .search-section {
            text-align: center;
            margin-bottom: 50px;
        }
        
        .search-section h2 {
            font-size: 2.5rem;
            margin-bottom: 20px;
            color: #2c3e50;
        }
        
        .search-section p {
            font-size: 1.1rem;
            max-width: 700px;
            margin: 0 auto 30px;
            color: #495057;
        }
        
        .search-box {
            max-width: 600px;
            margin: 0 auto;
            position: relative;
        }
        
        .search-box input {
            width: 100%;
            padding: 15px 25px;
            border: none;
            border-radius: 50px;
            font-size: 1.1rem;
            box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
            transition: all 0.3s ease;
        }
        
        .search-box input:focus {
            outline: none;
            box-shadow: 0 5px 20px rgba(76, 201, 240, 0.3);
        }
        
        .search-box button {
            position: absolute;
            right: 5px;
            top: 5px;
            background: #4cc9f0;
            border: none;
            color: white;
            padding: 10px 25px;
            border-radius: 50px;
            font-size: 1rem;
            cursor: pointer;
            transition: all 0.3s ease;
        }
        
        .search-box button:hover {
            background: #3aa8cc;
        }
        
        /* 标签筛选 */
        .tag-filters {
            display: flex;
            justify-content: center;
            flex-wrap: wrap;
            gap: 12px;
            margin-bottom: 40px;
        }
        
        .tag-filter {
            background: white;
            padding: 8px 20px;
            border-radius: 30px;
            font-size: 0.95rem;
            cursor: pointer;
            transition: all 0.3s ease;
            box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
        }
        
        .tag-filter:hover, .tag-filter.active {
            background: #4cc9f0;
            color: white;
            transform: translateY(-2px);
            box-shadow: 0 4px 12px rgba(76, 201, 240, 0.3);
        }
        
        /* 文章列表 */
        .articles-container {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
            gap: 35px;
            margin-bottom: 50px;
        }
        
        .article-card {
            background: white;
            border-radius: 12px;
            overflow: hidden;
            transition: all 0.3s ease;
            box-shadow: 0 5px 15px rgba(0, 0, 0, 0.08);
            display: flex;
            flex-direction: column;
            height: 100%;
        }
        
        .article-card:hover {
            transform: translateY(-10px);
            box-shadow: 0 12px 25px rgba(0, 0, 0, 0.15);
        }
        
        .article-image {
            height: 200px;
            overflow: hidden;
        }
        
        .article-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.5s ease;
        }
        
        .article-card:hover .article-image img {
            transform: scale(1.05);
        }
        
        .article-content {
            padding: 25px;
            flex-grow: 1;
            display: flex;
            flex-direction: column;
        }
        
        .article-tags {
            display: flex;
            gap: 8px;
            margin-bottom: 15px;
            flex-wrap: wrap;
        }
        
        .article-tag {
            background: #e9f7fe;
            color: #4cc9f0;
            font-size: 0.8rem;
            padding: 4px 12px;
            border-radius: 30px;
        }
        
        .article-title {
            font-size: 1.4rem;
            font-weight: 700;
            margin-bottom: 12px;
            color: #2c3e50;
            line-height: 1.3;
        }
        
        .article-description {
            color: #495057;
            margin-bottom: 20px;
            flex-grow: 1;
        }
        
        .article-meta {
            display: flex;
            justify-content: space-between;
            align-items: center;
            font-size: 0.9rem;
            color: #6c757d;
            border-top: 1px solid #e9ecef;
            padding-top: 15px;
            margin-top: auto;
        }
        
        /* 分页样式 */
        .pagination {
            display: flex;
            justify-content: center;
            gap: 10px;
            margin-top: 20px;
        }
        
        .pagination div {
            background: white;
            border: none;
            width: 40px;
            height: 40px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            cursor: pointer;
            transition: all 0.3s ease;
            box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
        }
        
        .pagination div:hover {
            background: #4cc9f0;
            color: white;
        }
        
        .pagination div.active {
            background: #4cc9f0;
            color: white;
        }
        
        /* 响应式设计 */
        @media (max-width: 768px) {
            .header-content {
                flex-direction: column;
                text-align: center;
            }
            
            .logo {
                margin-bottom: 20px;
                justify-content: center;
            }
            
            nav ul {
                justify-content: center;
            }
            
            nav li {
                margin: 0 10px;
            }
            
            .articles-container {
                grid-template-columns: 1fr;
            }
            
            .search-section h2 {
                font-size: 2rem;
            }
        }
        
         .sidebar-card {
            background: white;
            border-radius: var(--border-radius);
            box-shadow: var(--box-shadow);
            padding: 25px;
            margin-bottom: 30px;
        }
        .btn {
            padding: 8px 20px;
            border-radius: 30px;
            font-weight: 500;
            cursor: pointer;
            transition: var(--transition);
            border: none;
        }