:root {
            --primary-color: #1a237e;
            --secondary-color: #ff6f00;
            --accent-color: #4caf50;
            --dark-bg: #0d1117;
            --light-bg: #f5f5f5;
            --text-dark: #212121;
            --text-light: #f5f5f5;
            --shadow: 0 4px 12px rgba(0,0,0,0.1);
            --border-radius: 12px;
            --transition: all 0.3s ease;
        }
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            background-color: var(--light-bg);
            color: var(--text-dark);
            line-height: 1.8;
            overflow-x: hidden;
        }
        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        header {
            background: linear-gradient(135deg, var(--primary-color), #283593);
            color: var(--text-light);
            box-shadow: var(--shadow);
            position: sticky;
            top: 0;
            z-index: 1000;
        }
        .header-top {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 15px 0;
        }
        .logo a {
            font-size: 2.2rem;
            font-weight: 800;
            color: var(--text-light);
            text-decoration: none;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .logo i {
            color: var(--secondary-color);
        }
        .search-form {
            display: flex;
            flex: 0 1 400px;
        }
        .search-form input {
            flex-grow: 1;
            padding: 12px 20px;
            border: none;
            border-radius: var(--border-radius) 0 0 var(--border-radius);
            font-size: 1rem;
        }
        .search-form button {
            background-color: var(--secondary-color);
            color: white;
            border: none;
            padding: 0 25px;
            border-radius: 0 var(--border-radius) var(--border-radius) 0;
            cursor: pointer;
            transition: var(--transition);
        }
        .search-form button:hover {
            background-color: #ff8f00;
        }
        .mobile-menu-btn {
            display: none;
            background: none;
            border: none;
            color: white;
            font-size: 1.8rem;
            cursor: pointer;
        }
        nav {
            background-color: rgba(0,0,0,0.2);
            padding: 12px 0;
        }
        .nav-links {
            display: flex;
            list-style: none;
            justify-content: center;
            gap: 30px;
        }
        .nav-links a {
            color: var(--text-light);
            text-decoration: none;
            font-weight: 600;
            font-size: 1.1rem;
            padding: 8px 16px;
            border-radius: 6px;
            transition: var(--transition);
        }
        .nav-links a:hover,
        .nav-links a.active {
            background-color: var(--secondary-color);
        }
        .breadcrumb {
            padding: 15px 0;
            font-size: 0.9rem;
            background-color: rgba(255,255,255,0.1);
        }
        .breadcrumb a {
            color: #bbdefb;
            text-decoration: none;
        }
        .breadcrumb a:hover {
            text-decoration: underline;
        }
        .separator {
            margin: 0 10px;
        }
        main {
            padding: 40px 0;
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 40px;
        }
        .article-content {
            background-color: white;
            border-radius: var(--border-radius);
            padding: 40px;
            box-shadow: var(--shadow);
        }
        h1 {
            color: var(--primary-color);
            font-size: 2.8rem;
            margin-bottom: 20px;
            line-height: 1.3;
        }
        .article-meta {
            display: flex;
            gap: 20px;
            margin-bottom: 30px;
            color: #666;
            font-size: 0.95rem;
        }
        .article-meta i {
            margin-right: 8px;
            color: var(--secondary-color);
        }
        h2 {
            color: var(--primary-color);
            font-size: 2rem;
            margin: 40px 0 20px;
            padding-bottom: 10px;
            border-bottom: 3px solid var(--secondary-color);
        }
        h3 {
            color: #333;
            font-size: 1.6rem;
            margin: 30px 0 15px;
        }
        p {
            margin-bottom: 20px;
            text-align: justify;
            font-size: 1.1rem;
        }
        .highlight {
            background-color: #fff8e1;
            border-left: 5px solid var(--secondary-color);
            padding: 20px;
            margin: 25px 0;
            border-radius: 0 var(--border-radius) var(--border-radius) 0;
        }
        .image-container {
            margin: 30px 0;
            text-align: center;
        }
        .article-img {
            max-width: 100%;
            height: auto;
            border-radius: var(--border-radius);
            box-shadow: var(--shadow);
            transition: transform 0.5s ease;
        }
        .article-img:hover {
            transform: scale(1.02);
        }
        .caption {
            font-style: italic;
            color: #666;
            margin-top: 10px;
            font-size: 0.95rem;
        }
        ul, ol {
            margin-left: 30px;
            margin-bottom: 20px;
        }
        li {
            margin-bottom: 10px;
        }
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 20px;
            margin: 30px 0;
        }
        .stat-card {
            background: linear-gradient(145deg, #e3f2fd, #bbdefb);
            padding: 20px;
            border-radius: var(--border-radius);
            text-align: center;
            box-shadow: var(--shadow);
            transition: var(--transition);
        }
        .stat-card:hover {
            transform: translateY(-5px);
        }
        .stat-card h4 {
            color: var(--primary-color);
            margin-bottom: 10px;
        }
        .rating {
            color: #ffc107;
            font-size: 1.2rem;
            margin: 10px 0;
        }
        aside {
            display: flex;
            flex-direction: column;
            gap: 30px;
        }
        .sidebar-widget {
            background-color: white;
            border-radius: var(--border-radius);
            padding: 25px;
            box-shadow: var(--shadow);
        }
        .widget-title {
            color: var(--primary-color);
            font-size: 1.4rem;
            margin-bottom: 20px;
            padding-bottom: 10px;
            border-bottom: 2px solid var(--accent-color);
        }
        .event-countdown {
            text-align: center;
            font-size: 1.8rem;
            font-weight: bold;
            color: var(--secondary-color);
            background-color: #fff3e0;
            padding: 20px;
            border-radius: var(--border-radius);
        }
        .popular-guides ul {
            list-style: none;
            margin: 0;
        }
        .popular-guides li {
            margin-bottom: 15px;
            padding-bottom: 15px;
            border-bottom: 1px dashed #ddd;
        }
        .popular-guides a {
            color: var(--text-dark);
            text-decoration: none;
            display: flex;
            align-items: center;
            gap: 10px;
            transition: var(--transition);
        }
        .popular-guides a:hover {
            color: var(--secondary-color);
        }
        .popular-guides i {
            color: var(--accent-color);
        }
        .user-interaction {
            margin-top: 50px;
            background-color: white;
            border-radius: var(--border-radius);
            padding: 40px;
            box-shadow: var(--shadow);
        }
        .interaction-title {
            color: var(--primary-color);
            font-size: 2rem;
            margin-bottom: 30px;
            text-align: center;
        }
        .rating-form, .comment-form {
            margin-bottom: 40px;
        }
        .stars {
            display: flex;
            justify-content: center;
            gap: 10px;
            margin: 20px 0;
        }
        .star {
            font-size: 2.5rem;
            color: #ddd;
            cursor: pointer;
            transition: var(--transition);
        }
        .star:hover,
        .star.active {
            color: #ffc107;
        }
        .form-group {
            margin-bottom: 25px;
        }
        .form-group label {
            display: block;
            margin-bottom: 8px;
            font-weight: 600;
            color: #444;
        }
        .form-group input,
        .form-group textarea,
        .form-group select {
            width: 100%;
            padding: 15px;
            border: 2px solid #ddd;
            border-radius: var(--border-radius);
            font-size: 1rem;
            transition: var(--transition);
        }
        .form-group input:focus,
        .form-group textarea:focus,
        .form-group select:focus {
            border-color: var(--secondary-color);
            outline: none;
        }
        .form-group textarea {
            min-height: 150px;
            resize: vertical;
        }
        .submit-btn {
            background: linear-gradient(to right, var(--primary-color), #3949ab);
            color: white;
            border: none;
            padding: 16px 40px;
            font-size: 1.1rem;
            border-radius: var(--border-radius);
            cursor: pointer;
            transition: var(--transition);
            display: block;
            margin: 0 auto;
            font-weight: 600;
        }
        .submit-btn:hover {
            background: linear-gradient(to right, #3949ab, var(--primary-color));
            transform: translateY(-3px);
            box-shadow: 0 6px 15px rgba(0,0,0,0.2);
        }
        .internal-links {
            background-color: white;
            margin: 50px 0 30px;
            padding: 40px;
            border-radius: var(--border-radius);
            box-shadow: var(--shadow);
        }
        .internal-links h2 {
            text-align: center;
            border: none;
        }
        .web-links-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
            gap: 20px;
            margin-top: 30px;
        }
        .web-link {
            background-color: #f1f8e9;
            padding: 20px;
            border-radius: var(--border-radius);
            border-left: 5px solid var(--accent-color);
            transition: var(--transition);
        }
        .web-link:hover {
            background-color: #e8f5e9;
            transform: translateX(10px);
        }
        .web-link a {
            color: var(--text-dark);
            text-decoration: none;
            font-weight: 600;
            display: block;
        }
        .web-link a:hover {
            color: var(--primary-color);
        }
        footer {
            background-color: var(--dark-bg);
            color: var(--text-light);
            padding: 50px 0 20px;
        }
        .footer-content {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 40px;
            margin-bottom: 40px;
        }
        .footer-logo {
            font-size: 2rem;
            font-weight: 800;
            margin-bottom: 20px;
            color: white;
        }
        .footer-about p {
            font-size: 1rem;
            opacity: 0.8;
        }
        .footer-links h3,
        .footer-social h3 {
            font-size: 1.3rem;
            margin-bottom: 25px;
            color: var(--secondary-color);
        }
        .footer-links ul {
            list-style: none;
            margin: 0;
        }
        .footer-links li {
            margin-bottom: 12px;
        }
        .footer-links a {
            color: #ccc;
            text-decoration: none;
            transition: var(--transition);
        }
        .footer-links a:hover {
            color: white;
            padding-left: 5px;
        }
        .social-icons {
            display: flex;
            gap: 20px;
            font-size: 1.8rem;
        }
        .social-icons a {
            color: #ccc;
            transition: var(--transition);
        }
        .social-icons a:hover {
            color: var(--secondary-color);
            transform: translateY(-5px);
        }
        .copyright {
            text-align: center;
            padding-top: 30px;
            border-top: 1px solid #333;
            font-size: 0.9rem;
            opacity: 0.7;
        }
        @media (max-width: 992px) {
            main {
                grid-template-columns: 1fr;
            }
            h1 {
                font-size: 2.4rem;
            }
            .nav-links {
                gap: 15px;
            }
        }
        @media (max-width: 768px) {
            .header-top {
                flex-wrap: wrap;
            }
            .search-form {
                order: 3;
                flex: 1 0 100%;
                margin-top: 15px;
            }
            .mobile-menu-btn {
                display: block;
            }
            nav {
                display: none;
                position: absolute;
                top: 100%;
                left: 0;
                width: 100%;
                background-color: var(--primary-color);
                padding: 20px;
            }
            .nav-links {
                flex-direction: column;
                align-items: center;
            }
            .nav-active {
                display: block;
            }
            .article-content {
                padding: 25px;
            }
            h1 {
                font-size: 2rem;
            }
            h2 {
                font-size: 1.7rem;
            }
            .stats-grid {
                grid-template-columns: 1fr;
            }
            .web-links-grid {
                grid-template-columns: 1fr;
            }
        }
        @media (max-width: 480px) {
            .article-meta {
                flex-direction: column;
                gap: 10px;
            }
            .event-countdown {
                font-size: 1.4rem;
            }
            .star {
                font-size: 2rem;
            }
        }
        @media print {
            header, aside, .user-interaction, .internal-links, footer {
                display: none;
            }
            main {
                padding: 0;
            }
            .article-content {
                box-shadow: none;
                padding: 0;
            }
        }