:root {
            --primary: #2c3e50;
            --secondary: #3498db;
            --accent: #e74c3c;
            --light: #ecf0f1;
            --dark: #2c3e50;
            --gray: #95a5a6;
            --success: #27ae60;
            --warning: #f39c12;
            --shadow: 0 4px 6px rgba(0,0,0,0.1);
            --transition: all 0.3s ease;
        }
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
            line-height: 1.6;
            color: #333;
            background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
            background-attachment: fixed;
        }
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        header {
            background: rgba(255, 255, 255, 0.95);
            box-shadow: var(--shadow);
            position: sticky;
            top: 0;
            z-index: 1000;
            backdrop-filter: blur(10px);
        }
        .header-content {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 1rem 0;
        }
        .logo {
            font-size: 2rem;
            font-weight: 700;
            color: var(--primary);
            text-decoration: none;
            display: flex;
            align-items: center;
            gap: 10px;
            transition: var(--transition);
        }
        .logo:hover {
            color: var(--secondary);
            transform: scale(1.05);
        }
        .logo i {
            color: var(--accent);
        }
        nav {
            display: flex;
            align-items: center;
            gap: 2rem;
        }
        .nav-links {
            display: flex;
            gap: 1.5rem;
            list-style: none;
        }
        .nav-links a {
            text-decoration: none;
            color: var(--dark);
            font-weight: 600;
            padding: 0.5rem 1rem;
            border-radius: 4px;
            transition: var(--transition);
            position: relative;
        }
        .nav-links a:hover {
            color: var(--secondary);
            background: rgba(52, 152, 219, 0.1);
        }
        .nav-links a::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 50%;
            transform: translateX(-50%);
            width: 0;
            height: 2px;
            background: var(--secondary);
            transition: var(--transition);
        }
        .nav-links a:hover::after {
            width: 80%;
        }
        .search-form {
            display: flex;
            gap: 0.5rem;
        }
        .search-form input {
            padding: 0.5rem 1rem;
            border: 2px solid var(--gray);
            border-radius: 25px;
            outline: none;
            transition: var(--transition);
            width: 200px;
        }
        .search-form input:focus {
            border-color: var(--secondary);
            width: 250px;
        }
        .search-form button {
            background: var(--secondary);
            color: white;
            border: none;
            padding: 0.5rem 1rem;
            border-radius: 25px;
            cursor: pointer;
            transition: var(--transition);
        }
        .search-form button:hover {
            background: var(--primary);
            transform: translateY(-2px);
        }
        .hamburger {
            display: none;
            flex-direction: column;
            cursor: pointer;
            gap: 4px;
        }
        .hamburger span {
            width: 25px;
            height: 3px;
            background: var(--primary);
            transition: var(--transition);
        }
        .breadcrumb {
            background: rgba(255, 255, 255, 0.9);
            padding: 1rem 0;
            margin-bottom: 2rem;
            border-bottom: 1px solid var(--light);
        }
        .breadcrumb-content {
            display: flex;
            gap: 0.5rem;
            align-items: center;
            flex-wrap: wrap;
        }
        .breadcrumb a {
            color: var(--secondary);
            text-decoration: none;
            transition: var(--transition);
        }
        .breadcrumb a:hover {
            text-decoration: underline;
        }
        .breadcrumb span {
            color: var(--gray);
        }
        main {
            background: rgba(255, 255, 255, 0.95);
            border-radius: 15px;
            box-shadow: var(--shadow);
            padding: 3rem;
            margin: 2rem auto;
            backdrop-filter: blur(10px);
        }
        .article-header {
            text-align: center;
            margin-bottom: 3rem;
            padding-bottom: 2rem;
            border-bottom: 3px solid var(--secondary);
        }
        h1 {
            color: var(--primary);
            font-size: 2.8rem;
            margin-bottom: 1rem;
            line-height: 1.2;
        }
        .article-meta {
            display: flex;
            justify-content: center;
            gap: 2rem;
            color: var(--gray);
            margin-bottom: 1rem;
        }
        .article-meta span {
            display: flex;
            align-items: center;
            gap: 0.5rem;
        }
        .content-grid {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 3rem;
        }
        article {
            line-height: 1.8;
        }
        h2 {
            color: var(--primary);
            margin: 2.5rem 0 1.5rem;
            padding-bottom: 0.5rem;
            border-bottom: 2px solid var(--light);
            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;
        }
        .highlight {
            background: linear-gradient(120deg, rgba(52, 152, 219, 0.1) 0%, rgba(155, 89, 182, 0.1) 100%);
            padding: 2rem;
            border-radius: 10px;
            margin: 2rem 0;
            border-left: 4px solid var(--secondary);
        }
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            gap: 1.5rem;
            margin: 2rem 0;
        }
        .stat-card {
            background: white;
            padding: 1.5rem;
            border-radius: 10px;
            text-align: center;
            box-shadow: var(--shadow);
            transition: var(--transition);
            border: 1px solid var(--light);
        }
        .stat-card:hover {
            transform: translateY(-5px);
            box-shadow: 0 8px 15px rgba(0,0,0,0.2);
        }
        .stat-card .number {
            font-size: 2.5rem;
            font-weight: 700;
            color: var(--secondary);
            display: block;
            margin-bottom: 0.5rem;
        }
        .feature-image {
            width: 100%;
            max-height: 500px;
            object-fit: cover;
            border-radius: 10px;
            margin: 2rem 0;
            box-shadow: var(--shadow);
            transition: var(--transition);
        }
        .feature-image:hover {
            transform: scale(1.02);
        }
        aside {
            background: rgba(255, 255, 255, 0.9);
            padding: 2rem;
            border-radius: 10px;
            box-shadow: var(--shadow);
            height: fit-content;
            position: sticky;
            top: 120px;
        }
        .rating-widget {
            text-align: center;
            padding: 2rem;
            background: linear-gradient(135deg, var(--light) 0%, #fff 100%);
            border-radius: 10px;
            margin-bottom: 2rem;
        }
        .stars {
            display: flex;
            justify-content: center;
            gap: 0.5rem;
            margin: 1rem 0;
        }
        .star {
            font-size: 2rem;
            color: var(--gray);
            cursor: pointer;
            transition: var(--transition);
        }
        .star:hover,
        .star.active {
            color: var(--warning);
            transform: scale(1.2);
        }
        .rating-form button {
            width: 100%;
            padding: 0.8rem;
            background: var(--secondary);
            color: white;
            border: none;
            border-radius: 5px;
            cursor: pointer;
            transition: var(--transition);
            font-weight: 600;
        }
        .rating-form button:hover {
            background: var(--primary);
            transform: translateY(-2px);
        }
        .quick-links {
            margin-top: 2rem;
        }
        .quick-links h3 {
            margin-bottom: 1rem;
            color: var(--primary);
        }
        .quick-links ul {
            list-style: none;
        }
        .quick-links li {
            margin-bottom: 0.8rem;
        }
        .quick-links a {
            color: var(--dark);
            text-decoration: none;
            display: flex;
            align-items: center;
            gap: 0.5rem;
            padding: 0.5rem;
            border-radius: 5px;
            transition: var(--transition);
        }
        .quick-links a:hover {
            background: rgba(52, 152, 219, 0.1);
            color: var(--secondary);
            padding-left: 1rem;
        }
        .comments-section {
            margin-top: 4rem;
            padding-top: 3rem;
            border-top: 3px solid var(--light);
        }
        .comment-form {
            background: rgba(255, 255, 255, 0.9);
            padding: 2rem;
            border-radius: 10px;
            margin-bottom: 2rem;
            box-shadow: var(--shadow);
        }
        .form-group {
            margin-bottom: 1.5rem;
        }
        .form-group label {
            display: block;
            margin-bottom: 0.5rem;
            color: var(--primary);
            font-weight: 600;
        }
        .form-group input,
        .form-group textarea {
            width: 100%;
            padding: 0.8rem;
            border: 2px solid var(--light);
            border-radius: 5px;
            transition: var(--transition);
            font-family: inherit;
        }
        .form-group input:focus,
        .form-group textarea:focus {
            outline: none;
            border-color: var(--secondary);
            box-shadow: 0 0 0 3px rgba(52, 152, 219, 0.1);
        }
        .comment-form button {
            background: var(--success);
            color: white;
            padding: 1rem 2rem;
            border: none;
            border-radius: 5px;
            cursor: pointer;
            font-weight: 600;
            transition: var(--transition);
            display: flex;
            align-items: center;
            gap: 0.5rem;
        }
        .comment-form button:hover {
            background: #219653;
            transform: translateY(-2px);
            box-shadow: 0 5px 15px rgba(33, 150, 83, 0.3);
        }
        .comment {
            background: white;
            padding: 1.5rem;
            border-radius: 10px;
            margin-bottom: 1.5rem;
            box-shadow: var(--shadow);
            border-left: 4px solid var(--secondary);
        }
        .comment-header {
            display: flex;
            justify-content: space-between;
            align-items: center;
            margin-bottom: 1rem;
        }
        .comment-author {
            font-weight: 700;
            color: var(--primary);
        }
        .comment-date {
            color: var(--gray);
            font-size: 0.9rem;
        }
        .internal-links {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            gap: 1.5rem;
            margin: 3rem 0;
            padding: 2rem;
            background: linear-gradient(135deg, rgba(255, 255, 255, 0.9) 0%, rgba(236, 240, 241, 0.9) 100%);
            border-radius: 15px;
            box-shadow: var(--shadow);
        }
        .web-link {
            background: white;
            padding: 1.5rem;
            border-radius: 8px;
            box-shadow: var(--shadow);
            transition: var(--transition);
            border: 2px solid transparent;
        }
        .web-link:hover {
            transform: translateY(-5px);
            border-color: var(--secondary);
            box-shadow: 0 10px 20px rgba(0,0,0,0.1);
        }
        .web-link a {
            color: var(--primary);
            text-decoration: none;
            font-weight: 600;
            display: block;
            transition: var(--transition);
        }
        .web-link a:hover {
            color: var(--secondary);
        }
        footer {
            background: rgba(255, 255, 255, 0.95);
            padding: 3rem 0 1.5rem;
            margin-top: 4rem;
            border-top: 3px solid var(--secondary);
        }
        .footer-content {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 3rem;
            margin-bottom: 2rem;
        }
        .footer-section h3 {
            color: var(--primary);
            margin-bottom: 1.5rem;
            font-size: 1.3rem;
        }
        .footer-links {
            list-style: none;
        }
        .footer-links li {
            margin-bottom: 0.8rem;
        }
        .footer-links a {
            color: var(--dark);
            text-decoration: none;
            transition: var(--transition);
            display: flex;
            align-items: center;
            gap: 0.5rem;
        }
        .footer-links a:hover {
            color: var(--secondary);
            padding-left: 0.5rem;
        }
        .copyright {
            text-align: center;
            padding-top: 1.5rem;
            border-top: 1px solid var(--light);
            color: var(--gray);
            font-size: 0.9rem;
        }
        @media (max-width: 992px) {
            .content-grid {
                grid-template-columns: 1fr;
            }
            aside {
                position: static;
            }
            h1 {
                font-size: 2.2rem;
            }
        }
        @media (max-width: 768px) {
            .nav-links {
                display: none;
                position: absolute;
                top: 100%;
                left: 0;
                right: 0;
                background: white;
                flex-direction: column;
                padding: 1rem;
                box-shadow: var(--shadow);
            }
            .nav-links.active {
                display: flex;
            }
            .hamburger {
                display: flex;
            }
            .hamburger.active span:nth-child(1) {
                transform: rotate(45deg) translate(5px, 5px);
            }
            .hamburger.active span:nth-child(2) {
                opacity: 0;
            }
            .hamburger.active span:nth-child(3) {
                transform: rotate(-45deg) translate(7px, -6px);
            }
            .search-form input {
                width: 150px;
            }
            .search-form input:focus {
                width: 180px;
            }
            main {
                padding: 2rem;
            }
            .stats-grid {
                grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
            }
            .internal-links {
                grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
            }
        }
        @media (max-width: 480px) {
            .header-content {
                flex-wrap: wrap;
            }
            .search-form {
                order: 3;
                width: 100%;
                margin-top: 1rem;
            }
            .search-form input {
                width: 100%;
            }
            .search-form input:focus {
                width: 100%;
            }
            .article-meta {
                flex-direction: column;
                gap: 0.5rem;
            }
            .rating-widget {
                padding: 1rem;
            }
            .stars .star {
                font-size: 1.5rem;
            }
        }
        @keyframes fadeIn {
            from {
                opacity: 0;
                transform: translateY(20px);
            }
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }
        .fade-in {
            animation: fadeIn 0.6s ease-out;
        }
        ::-webkit-scrollbar {
            width: 10px;
        }
        ::-webkit-scrollbar-track {
            background: var(--light);
        }
        ::-webkit-scrollbar-thumb {
            background: var(--secondary);
            border-radius: 5px;
        }
        ::-webkit-scrollbar-thumb:hover {
            background: var(--primary);
        }