:root {
            --primary: #2563eb;
            --secondary: #1e40af;
            --accent: #f59e0b;
            --dark: #1f2937;
            --light: #f3f4f6;
            --gray: #6b7280;
            --success: #10b981;
            --border-radius: 8px;
            --shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
            --transition: all 0.3s ease;
        }
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        body {
            font-family: 'Segoe UI', system-ui, -apple-system, sans-serif;
            line-height: 1.6;
            color: var(--dark);
            background-color: #f8fafc;
            overflow-x: hidden;
        }
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        header {
            background: linear-gradient(135deg, var(--dark) 0%, var(--primary) 100%);
            color: white;
            position: sticky;
            top: 0;
            z-index: 1000;
            box-shadow: var(--shadow);
        }
        .header-top {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 1rem 0;
        }
        .logo {
            font-size: 2rem;
            font-weight: 800;
            color: white;
            text-decoration: none;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .logo i {
            color: var(--accent);
        }
        .logo:hover {
            color: var(--accent);
            transition: var(--transition);
        }
        .mobile-toggle {
            display: none;
            background: none;
            border: none;
            color: white;
            font-size: 1.5rem;
            cursor: pointer;
        }
        nav {
            display: flex;
            gap: 2rem;
        }
        nav a {
            color: white;
            text-decoration: none;
            font-weight: 500;
            padding: 0.5rem 1rem;
            border-radius: var(--border-radius);
            transition: var(--transition);
        }
        nav a:hover {
            background-color: rgba(255, 255, 255, 0.1);
            transform: translateY(-2px);
        }
        .search-form {
            display: flex;
            gap: 10px;
        }
        .search-input {
            padding: 0.5rem 1rem;
            border: 2px solid rgba(255, 255, 255, 0.2);
            border-radius: var(--border-radius);
            background: rgba(255, 255, 255, 0.1);
            color: white;
            min-width: 200px;
        }
        .search-input::placeholder {
            color: rgba(255, 255, 255, 0.7);
        }
        .search-btn {
            background: var(--accent);
            color: white;
            border: none;
            padding: 0.5rem 1.5rem;
            border-radius: var(--border-radius);
            cursor: pointer;
            transition: var(--transition);
        }
        .search-btn:hover {
            background: #d97706;
            transform: translateY(-2px);
        }
        .breadcrumb {
            background: rgba(0, 0, 0, 0.2);
            padding: 0.75rem 0;
            font-size: 0.9rem;
        }
        .breadcrumb a {
            color: rgba(255, 255, 255, 0.9);
            text-decoration: none;
        }
        .breadcrumb a:hover {
            color: var(--accent);
        }
        main {
            padding: 2rem 0;
        }
        .article-header {
            margin-bottom: 3rem;
            text-align: center;
        }
        .article-header h1 {
            font-size: 2.5rem;
            color: var(--dark);
            margin-bottom: 1rem;
            line-height: 1.2;
        }
        .meta-info {
            display: flex;
            justify-content: center;
            gap: 2rem;
            color: var(--gray);
            font-size: 0.9rem;
            margin-bottom: 2rem;
        }
        .meta-info span {
            display: flex;
            align-items: center;
            gap: 0.5rem;
        }
        .hero-image {
            width: 100%;
            max-height: 500px;
            object-fit: cover;
            border-radius: var(--border-radius);
            margin: 2rem 0;
            box-shadow: var(--shadow);
        }
        .content-grid {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 3rem;
        }
        article {
            background: white;
            padding: 2.5rem;
            border-radius: var(--border-radius);
            box-shadow: var(--shadow);
        }
        h2 {
            color: var(--primary);
            margin: 2.5rem 0 1.5rem;
            padding-bottom: 0.5rem;
            border-bottom: 3px solid var(--accent);
            font-size: 1.8rem;
        }
        h3 {
            color: var(--secondary);
            margin: 2rem 0 1rem;
            font-size: 1.4rem;
        }
        p {
            margin-bottom: 1.5rem;
            font-size: 1.1rem;
            line-height: 1.8;
        }
        .highlight {
            background: linear-gradient(120deg, rgba(245, 158, 11, 0.1) 0%, rgba(245, 158, 11, 0.05) 100%);
            border-left: 4px solid var(--accent);
            padding: 1.5rem;
            margin: 2rem 0;
            border-radius: 0 var(--border-radius) var(--border-radius) 0;
        }
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 1.5rem;
            margin: 2rem 0;
        }
        .stat-card {
            background: white;
            padding: 1.5rem;
            border-radius: var(--border-radius);
            box-shadow: var(--shadow);
            text-align: center;
            border-top: 4px solid var(--primary);
        }
        .stat-value {
            font-size: 2.5rem;
            font-weight: 800;
            color: var(--primary);
            margin-bottom: 0.5rem;
        }
        .stat-label {
            color: var(--gray);
            font-size: 0.9rem;
            text-transform: uppercase;
            letter-spacing: 1px;
        }
        .interactive-section {
            background: linear-gradient(135deg, var(--light) 0%, #e2e8f0 100%);
            padding: 2rem;
            border-radius: var(--border-radius);
            margin: 3rem 0;
        }
        .rating-system {
            display: flex;
            flex-direction: column;
            gap: 1rem;
            margin: 2rem 0;
        }
        .stars {
            display: flex;
            gap: 0.5rem;
            font-size: 1.5rem;
            color: #e5e7eb;
            cursor: pointer;
        }
        .stars i {
            transition: var(--transition);
        }
        .stars i:hover,
        .stars i.active {
            color: var(--accent);
            transform: scale(1.2);
        }
        .form-group {
            margin-bottom: 1.5rem;
        }
        .form-group label {
            display: block;
            margin-bottom: 0.5rem;
            font-weight: 600;
            color: var(--dark);
        }
        .form-group input,
        .form-group textarea,
        .form-group select {
            width: 100%;
            padding: 0.75rem;
            border: 2px solid #e5e7eb;
            border-radius: var(--border-radius);
            font-family: inherit;
            transition: var(--transition);
        }
        .form-group input:focus,
        .form-group textarea:focus,
        .form-group select:focus {
            outline: none;
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
        }
        .submit-btn {
            background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
            color: white;
            border: none;
            padding: 1rem 2rem;
            border-radius: var(--border-radius);
            font-weight: 600;
            cursor: pointer;
            transition: var(--transition);
        }
        .submit-btn:hover {
            transform: translateY(-2px);
            box-shadow: 0 10px 20px rgba(37, 99, 235, 0.2);
        }
        aside {
            position: sticky;
            top: 100px;
            align-self: start;
        }
        .sidebar-widget {
            background: white;
            padding: 1.5rem;
            border-radius: var(--border-radius);
            box-shadow: var(--shadow);
            margin-bottom: 1.5rem;
        }
        .widget-title {
            color: var(--primary);
            margin-bottom: 1rem;
            padding-bottom: 0.5rem;
            border-bottom: 2px solid var(--light);
            font-size: 1.2rem;
        }
        .quick-links {
            list-style: none;
        }
        .quick-links li {
            margin-bottom: 0.75rem;
        }
        .quick-links a {
            color: var(--dark);
            text-decoration: none;
            display: flex;
            align-items: center;
            gap: 0.75rem;
            padding: 0.5rem;
            border-radius: var(--border-radius);
            transition: var(--transition);
        }
        .quick-links a:hover {
            background: var(--light);
            color: var(--primary);
            padding-left: 1rem;
        }
        .quick-links i {
            color: var(--primary);
            width: 20px;
        }
        .related-articles {
            display: flex;
            flex-direction: column;
            gap: 1rem;
        }
        .related-article {
            display: block;
            padding: 1rem;
            background: var(--light);
            border-radius: var(--border-radius);
            text-decoration: none;
            color: var(--dark);
            transition: var(--transition);
            border-left: 3px solid transparent;
        }
        .related-article:hover {
            background: white;
            border-left-color: var(--accent);
            transform: translateX(5px);
            box-shadow: var(--shadow);
        }
        footer {
            background: var(--dark);
            color: white;
            padding: 3rem 0 1.5rem;
            margin-top: 3rem;
        }
        .footer-links {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 2rem;
            margin-bottom: 3rem;
        }
        .web-link {
            background: rgba(255, 255, 255, 0.05);
            padding: 1rem;
            border-radius: var(--border-radius);
            transition: var(--transition);
        }
        .web-link:hover {
            background: rgba(255, 255, 255, 0.1);
            transform: translateY(-3px);
        }
        .web-link a {
            color: var(--accent);
            text-decoration: none;
            font-weight: 500;
        }
        .web-link a:hover {
            text-decoration: underline;
        }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            padding-top: 1.5rem;
            text-align: center;
            color: rgba(255, 255, 255, 0.7);
            font-size: 0.9rem;
        }
        @media (max-width: 1024px) {
            .content-grid {
                grid-template-columns: 1fr;
            }
            aside {
                position: static;
                margin-top: 2rem;
            }
        }
        @media (max-width: 768px) {
            .header-top {
                flex-wrap: wrap;
            }
            .mobile-toggle {
                display: block;
            }
            nav {
                display: none;
                width: 100%;
                flex-direction: column;
                margin-top: 1rem;
            }
            nav.active {
                display: flex;
            }
            .search-form {
                width: 100%;
                margin-top: 1rem;
            }
            .search-input {
                flex: 1;
                min-width: auto;
            }
            .article-header h1 {
                font-size: 2rem;
            }
            article {
                padding: 1.5rem;
            }
            .stats-grid {
                grid-template-columns: 1fr;
            }
            .meta-info {
                flex-direction: column;
                gap: 0.5rem;
                align-items: center;
            }
        }
        @media (max-width: 480px) {
            .container {
                padding: 0 15px;
            }
            .article-header h1 {
                font-size: 1.8rem;
            }
            h2 {
                font-size: 1.5rem;
            }
            .footer-links {
                grid-template-columns: 1fr;
            }
        }
        @keyframes fadeIn {
            from { opacity: 0; transform: translateY(20px); }
            to { opacity: 1; transform: translateY(0); }
        }
        .fade-in {
            animation: fadeIn 0.6s ease-out forwards;
        }
        .delay-1 { animation-delay: 0.1s; }
        .delay-2 { animation-delay: 0.2s; }
        .delay-3 { animation-delay: 0.3s; }
        @media print {
            header, aside, footer, .interactive-section {
                display: none;
            }
            body {
                background: white;
                color: black;
            }
            article {
                box-shadow: none;
                padding: 0;
            }
        }