* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: 'Segoe UI', 'Microsoft YaHei', sans-serif;
        }
        
        body {
            background: linear-gradient(135deg, #f0f8ff 0%, #f5f0ff 100%);
            min-height: 100vh;
            padding: 20px;
            color: #333;
            animation: gradientShift 15s ease infinite;
            background-size: 200% 200%;
        }
        
        @keyframes gradientShift {
            0% {
                background: linear-gradient(135deg, #f0f8ff 0%, #f5f0ff 100%);
            }
            25% {
                background: linear-gradient(135deg, #f5f0ff 0%, #fff0f5 100%);
            }
            50% {
                background: linear-gradient(135deg, #fff0f5 0%, #f0fff5 100%);
            }
            75% {
                background: linear-gradient(135deg, #f0fff5 0%, #f5f5ff 100%);
            }
            100% {
                background: linear-gradient(135deg, #f5f5ff 0%, #f0f8ff 100%);
            }
        }
        
        .container {
            max-width: 1200px;
            margin: 0 auto;
        }
        
        .header {
            text-align: center;
            margin-bottom: 10px;
            padding: 5px;
            position: relative;
        }
        
        .header h1 {
            font-size: 2.8rem;
            color: #6a5acd;
            text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.1);
            margin-bottom: 10px;
            position: relative;
            display: inline-block;
        }
        
        .header h1:after {
            content: "";
            position: absolute;
            bottom: -10px;
            left: 10%;
            width: 80%;
            height: 3px;
            background: linear-gradient(to right, transparent, #ff6b9d, transparent);
        }
        
        .header p {
            font-size: 1.2rem;
            color: #7a7a7a;
            max-width: 600px;
            margin: 0 auto;
        }
        
        .search-filter-container {
            background: rgba(255, 255, 255, 0.7);
            border-radius: 20px;
            padding: 25px;
            margin-bottom: 30px;
            box-shadow: 0 8px 25px rgba(0, 0, 0, 0.08);
            display: flex;
            flex-wrap: wrap;
            gap: 20px;
            align-items: center;
            justify-content: space-between;
            backdrop-filter: blur(10px);
            border: 1px solid rgba(255, 255, 255, 0.5);
        }
        
        .search-box {
            flex: 1;
            min-width: 250px;
            position: relative;
        }
        
        .search-input {
            width: 100%;
            padding: 14px 20px 14px 50px;
            border: none;
            border-radius: 30px;
            background: rgba(255, 255, 255, 0.9);
            box-shadow: 0 4px 15px rgba(0, 0, 0, 0.08);
            font-size: 1rem;
            transition: all 0.3s ease;
            border: 1px solid rgba(106, 90, 205, 0.2);
        }
        
        .search-input:focus {
            outline: none;
            box-shadow: 0 6px 20px rgba(106, 90, 205, 0.25);
            border-color: rgba(106, 90, 205, 0.4);
        }
        
        .search-icon {
            position: absolute;
            left: 20px;
            top: 50%;
            transform: translateY(-50%);
            color: #6a5acd;
            font-size: 1.2rem;
        }
        
        .category-filter {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
        }
        
        .category-btn {
            padding: 8px 16px;
            border: none;
            border-radius: 20px;
            background: rgba(106, 90, 205, 0.1);
            color: #6a5acd;
            cursor: pointer;
            transition: all 0.3s ease;
            font-size: 0.9rem;
        }
        
        .category-btn:hover {
            background: rgba(106, 90, 205, 0.2);
            transform: translateY(-2px);
        }
        
        .category-btn.active {
            background: #6a5acd;
            color: white;
        }
        
        .sort-options {
            display: flex;
            gap: 10px;
        }
        
        .sort-btn {
            padding: 8px 16px;
            border: none;
            border-radius: 20px;
            background: rgba(255, 107, 157, 0.1);
            color: #ff6b9d;
            cursor: pointer;
            transition: all 0.3s ease;
            font-size: 0.9rem;
        }
        
        .sort-btn:hover {
            background: rgba(255, 107, 157, 0.2);
            transform: translateY(-2px);
        }
        
        .sort-btn.active {
            background: #ff6b9d;
            color: white;
        }
        
        .articles-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
            gap: 30px;
            margin-top: 20px;
        }
        
        .article-card {
            background: rgba(255, 255, 255, 0.8);
            border-radius: 20px;
            overflow: hidden;
            box-shadow: 0 10px 25px rgba(0, 0, 0, 0.08);
            transition: all 0.4s ease;
            cursor: pointer;
            position: relative;
            display: flex;
            flex-direction: column;
            backdrop-filter: blur(10px);
            border: 1px solid rgba(255, 255, 255, 0.6);
        }
        
        .article-card:hover {
            transform: translateY(-10px) scale(1.02);
            box-shadow: 0 20px 40px rgba(0, 0, 0, 0.15);
        }
        
        .article-card::before {
            content: "";
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 0px;
            background: linear-gradient(to right, #ff6b9d, #6a5acd, #4ecdc4);
            z-index: 2;
        }
        
        .image-container {
            width: 100%;
            height: 350px;
            overflow: hidden;
            position: relative;
            display: flex;
            align-items: center;
            justify-content: center;
        }
        
        .article-image {
            width: 100%;
            height: 100%;
            display: block;
            object-fit: cover;
            transition: all 0.6s ease;
            opacity: 0;
        }
        
        .article-image.loaded {
            opacity: 1;
        }
        
        .article-card:hover .article-image {
            transform: scale(1.1);
        }
        
        .image-placeholder {
            text-align: center;
            color: white;
            font-size: 1.1rem;
            text-shadow: 1px 1px 3px rgba(0, 0, 0, 0.3);
            padding: 20px;
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            z-index: 1;
        }
        
        .image-placeholder i {
            font-size: 3rem;
            display: block;
            margin-bottom: 15px;
            animation: pulse 2s infinite;
        }
        
        @keyframes pulse {
            0% { transform: scale(1); opacity: 0.7; }
            50% {transform: scale(1.1); opacity: 1; }
            100% {transform: scale(1); opacity: 0.7; }
        }
        
        .overlay {
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            background: linear-gradient(to top, rgba(0, 0, 0, 0.85), transparent);
            display: flex;
            align-items: flex-end;
            padding: 25px 20px 20px;
            color: white;
            z-index: 2;
        }
        
        .article-info {
            width: 100%;
        }
        
        .article-title {
            font-size: 1.4rem;
            font-weight: 600;
            margin-bottom: 10px;
            text-shadow: 1px 1px 3px rgba(0, 0, 0, 0.5);
            line-height: 1.3;
        }
        
        .article-meta {
            display: flex;
            justify-content: space-between;
            font-size: 0.9rem;
            opacity: 0.9;
        }
        
        .category {
            background: rgba(255, 107, 157, 0.85);
            padding: 5px 12px;
            border-radius: 15px;
            font-size: 0.8rem;
            font-weight: 500;
        }
        
        .no-results {
            text-align: center;
            padding: 60px 40px;
            font-size: 1.3rem;
            color: #6a5acd;
            grid-column: 1 / -1;
            background: rgba(255, 255, 255, 0.7);
            border-radius: 20px;
            box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
        }
        
        .no-results i {
            font-size: 3rem;
            display: block;
            margin-bottom: 20px;
            opacity: 0.7;
        }
        
        .loading {
            text-align: center;
            padding: 60px 40px;
            font-size: 1.3rem;
            color: #6a5acd;
            grid-column: 1 / -1;
            background: rgba(255, 255, 255, 0.7);
            border-radius: 20px;
            box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
        }
        
        .spinner {
            border: 4px solid rgba(106, 90, 205, 0.3);
            border-radius: 50%;
            border-top: 4px solid #6a5acd;
            width: 50px;
            height: 50px;
            animation: spin 1.5s linear infinite;
            margin: 0 auto 25px;
        }
        
        @keyframes spin {
            0% { transform: rotate(0deg); }
            100% { transform: rotate(360deg); }
        }
        
        .results-count {
            text-align: center;
            margin-bottom: 20px;
            color: #6a5acd;
            font-size: 1.1rem;
            font-weight: 500;
        }
        
        .results-count span {
            background: rgba(106, 90, 205, 0.1);
            padding: 5px 15px;
            border-radius: 20px;
        }
        
        .load-more-container {
            text-align: center;
            margin-top: 40px;
            grid-column: 1 / -1;
        }
        
        .load-more-btn {
            padding: 12px 30px;
            border: none;
            border-radius: 25px;
            background: linear-gradient(135deg, #6a5acd, #8a76d6);
            color: white;
            font-size: 1rem;
            cursor: pointer;
            transition: all 0.3s ease;
            box-shadow: 0 5px 15px rgba(106, 90, 205, 0.3);
        }
        
        .load-more-btn:hover {
            transform: translateY(-3px);
            box-shadow: 0 8px 20px rgba(106, 90, 205, 0.4);
        }
        
        .load-more-btn:disabled {
            background: #cccccc;
            cursor: not-allowed;
            transform: none;
            box-shadow: 0 3px 10px rgba(0, 0, 0, 0.1);
        }
        
        .loading-more {
            text-align: center;
            padding: 20px;
            color: #6a5acd;
            grid-column: 1 / -1;
        }
        
        .loading-more .spinner {
            width: 30px;
            height: 30px;
            margin-bottom: 10px;
        }
        
        @media (max-width: 768px) {
            .articles-grid {
                grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
                gap: 20px;
            }
            
            .header h1 {
                font-size: 2.2rem;
            }
            
            .image-container {
                height: 300px;
            }
            
            .search-filter-container {
                flex-direction: column;
                align-items: stretch;
                padding: 20px;
            }
            
            .search-box {
                min-width: 100%;
            }
            
            .category-filter, .sort-options {
                justify-content: center;
            }
        }
        
        @media (max-width: 480px) {
            body {
                padding: 10px;
            }
            
            .articles-grid {
                grid-template-columns: 1fr;
            }
            
            .header h1 {
                font-size: 1.8rem;
            }
            
            .image-container {
                height: 250px;
            }
            
            .category-filter, .sort-options {
                flex-wrap: wrap;
            }
            
            .category-btn, .sort-btn {
                padding: 8px 14px;
                font-size: 0.85rem;
            }
        }
        
        .footer {
            text-align: center;
            margin-top: 60px;
            padding: 30px 20px;
            color: #7a7a7a;
            font-size: 0.9rem;
        }
        
        .heart {
            color: #ff6b9d;
            display: inline-block;
            animation: heartbeat 1.5s infinite;
        }
        
        @keyframes heartbeat {
            0% { transform: scale(1); }
            50% { transform: scale(1.1); }
            100% { transform: scale(1); }
        }