* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        body {
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
            line-height: 1.6;
            color: #333;
            background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
            min-height: 100vh;
        }
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        header {
            background: rgba(255, 255, 255, 0.95);
            backdrop-filter: blur(10px);
            position: sticky;
            top: 0;
            z-index: 1000;
            box-shadow: 0 2px 20px rgba(0,0,0,0.1);
        }
        .header-top {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 1rem 0;
        }
        .logo {
            font-size: 2rem;
            font-weight: bold;
            color: #4a5568;
            text-decoration: none;
        }
        .logo span {
            color: #667eea;
        }
        .search-box {
            display: flex;
            gap: 10px;
        }
        .search-box input {
            padding: 10px 15px;
            border: 2px solid #e2e8f0;
            border-radius: 25px;
            outline: none;
            transition: all 0.3s ease;
        }
        .search-box input:focus {
            border-color: #667eea;
            box-shadow: 0 0 10px rgba(102, 126, 234, 0.3);
        }
        .search-box button {
            padding: 10px 20px;
            background: #667eea;
            color: white;
            border: none;
            border-radius: 25px;
            cursor: pointer;
            transition: all 0.3s ease;
        }
        .search-box button:hover {
            background: #5a67d8;
            transform: translateY(-2px);
        }
        nav {
            background: #4a5568;
            padding: 1rem 0;
        }
        .nav-links {
            display: flex;
            list-style: none;
            gap: 2rem;
            justify-content: center;
        }
        .nav-links a {
            color: white;
            text-decoration: none;
            font-weight: 500;
            transition: color 0.3s ease;
            padding: 0.5rem 1rem;
            border-radius: 5px;
        }
        .nav-links a:hover {
            color: #667eea;
            background: rgba(255,255,255,0.1);
        }
        .hamburger {
            display: none;
            background: none;
            border: none;
            color: #4a5568;
            font-size: 1.5rem;
            cursor: pointer;
        }
        .breadcrumb {
            background: rgba(255,255,255,0.9);
            padding: 1rem 0;
            margin-bottom: 2rem;
        }
        .breadcrumb ol {
            display: flex;
            list-style: none;
            gap: 0.5rem;
        }
        .breadcrumb a {
            color: #667eea;
            text-decoration: none;
        }
        .breadcrumb li:not(:last-child)::after {
            content: "›";
            margin-left: 0.5rem;
            color: #718096;
        }
        main {
            background: white;
            border-radius: 20px;
            box-shadow: 0 10px 40px rgba(0,0,0,0.1);
            overflow: hidden;
            margin: 2rem 0;
        }
        .article-header {
            background: linear-gradient(135deg, #667eea, #764ba2);
            color: white;
            padding: 3rem 2rem;
            text-align: center;
        }
        .article-header h1 {
            font-size: 3rem;
            margin-bottom: 1rem;
            text-shadow: 2px 2px 4px rgba(0,0,0,0.3);
        }
        .article-meta {
            display: flex;
            justify-content: center;
            gap: 2rem;
            margin-top: 1rem;
            opacity: 0.9;
        }
        .article-content {
            padding: 3rem 2rem;
        }
        .content-section {
            margin-bottom: 3rem;
        }
        .content-section h2 {
            color: #4a5568;
            font-size: 2rem;
            margin-bottom: 1.5rem;
            padding-bottom: 0.5rem;
            border-bottom: 3px solid #667eea;
        }
        .content-section h3 {
            color: #667eea;
            font-size: 1.5rem;
            margin: 1.5rem 0 1rem 0;
        }
        .content-section p {
            margin-bottom: 1rem;
            font-size: 1.1rem;
            line-height: 1.8;
        }
        .highlight {
            background: linear-gradient(120deg, #a0c4ff 0%, #ffd6ff 100%);
            padding: 2rem;
            border-radius: 15px;
            margin: 2rem 0;
            border-left: 5px solid #667eea;
        }
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 1.5rem;
            margin: 2rem 0;
        }
        .stat-card {
            background: #f7fafc;
            padding: 1.5rem;
            border-radius: 10px;
            text-align: center;
            border: 2px solid #e2e8f0;
            transition: all 0.3s ease;
        }
        .stat-card:hover {
            transform: translateY(-5px);
            box-shadow: 0 10px 25px rgba(0,0,0,0.1);
            border-color: #667eea;
        }
        .stat-number {
            font-size: 2.5rem;
            font-weight: bold;
            color: #667eea;
            margin-bottom: 0.5rem;
        }
        .feature-image {
            width: 100%;
            height: 400px;
            background: linear-gradient(45deg, #667eea, #764ba2);
            border-radius: 15px;
            margin: 2rem 0;
            display: flex;
            align-items: center;
            justify-content: center;
            color: white;
            font-size: 1.5rem;
            position: relative;
            overflow: hidden;
        }
        .feature-image::before {
            content: "";
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: url('https://via.placeholder.com/1200x600') center/cover;
            opacity: 0.8;
        }
        .interactive-section {
            background: #f8f9fa;
            padding: 2rem;
            border-radius: 15px;
            margin: 2rem 0;
        }
        .rating-system {
            display: flex;
            gap: 1rem;
            align-items: center;
            margin: 1rem 0;
        }
        .star-rating {
            display: flex;
            gap: 5px;
        }
        .star {
            color: #e2e8f0;
            cursor: pointer;
            transition: color 0.2s ease;
            font-size: 1.5rem;
        }
        .star:hover,
        .star.active {
            color: #f6ad55;
        }
        .comment-form {
            background: white;
            padding: 2rem;
            border-radius: 10px;
            box-shadow: 0 5px 15px rgba(0,0,0,0.1);
            margin: 2rem 0;
        }
        .form-group {
            margin-bottom: 1.5rem;
        }
        .form-group label {
            display: block;
            margin-bottom: 0.5rem;
            font-weight: 600;
            color: #4a5568;
        }
        .form-group input,
        .form-group textarea {
            width: 100%;
            padding: 12px;
            border: 2px solid #e2e8f0;
            border-radius: 8px;
            font-size: 1rem;
            transition: all 0.3s ease;
        }
        .form-group input:focus,
        .form-group textarea:focus {
            border-color: #667eea;
            box-shadow: 0 0 10px rgba(102, 126, 234, 0.2);
            outline: none;
        }
        .submit-btn {
            background: linear-gradient(135deg, #667eea, #764ba2);
            color: white;
            padding: 12px 30px;
            border: none;
            border-radius: 25px;
            font-size: 1rem;
            cursor: pointer;
            transition: all 0.3s ease;
        }
        .submit-btn:hover {
            transform: translateY(-2px);
            box-shadow: 0 5px 15px rgba(102, 126, 234, 0.4);
        }
        .web-links {
            background: #2d3748;
            padding: 3rem 2rem;
        }
        .web-links-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            gap: 1rem;
        }
        .web-link {
            background: rgba(255,255,255,0.1);
            padding: 1rem;
            border-radius: 8px;
            transition: all 0.3s ease;
        }
        .web-link:hover {
            background: rgba(255,255,255,0.2);
            transform: translateX(5px);
        }
        .web-link a {
            color: #cbd5e0;
            text-decoration: none;
            display: block;
        }
        .web-link a:hover {
            color: white;
        }
        footer {
            background: #1a202c;
            color: #cbd5e0;
            text-align: center;
            padding: 2rem;
        }
        .footer-content {
            max-width: 600px;
            margin: 0 auto;
        }
        @media (max-width: 768px) {
            .header-top {
                flex-direction: column;
                gap: 1rem;
            }
            .nav-links {
                display: none;
                flex-direction: column;
                position: absolute;
                top: 100%;
                left: 0;
                right: 0;
                background: #4a5568;
                padding: 1rem;
            }
            .nav-links.active {
                display: flex;
            }
            .hamburger {
                display: block;
            }
            .article-header h1 {
                font-size: 2rem;
            }
            .stats-grid {
                grid-template-columns: 1fr;
            }
            .feature-image {
                height: 250px;
            }
        }
        @keyframes fadeInUp {
            from {
                opacity: 0;
                transform: translateY(30px);
            }
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }
        .fade-in {
            animation: fadeInUp 0.6s ease-out;
        }
        @media print {
            header, nav, .interactive-section, .web-links, footer {
                display: none;
            }
            main {
                box-shadow: none;
                margin: 0;
            }
        }