* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        :root {
            --primary-color: #1a237e;
            --secondary-color: #ff6f00;
            --accent-color: #4fc3f7;
            --dark-color: #0d153a;
            --light-color: #f5f7ff;
            --text-color: #333;
            --text-light: #666;
            --shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
            --transition: all 0.3s ease;
            --border-radius: 8px;
            --container-width: 1200px;
        }
        body {
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
            line-height: 1.6;
            color: var(--text-color);
            background-color: var(--light-color);
            overflow-x: hidden;
        }
        a {
            text-decoration: none;
            color: inherit;
            transition: var(--transition);
        }
        ul {
            list-style: none;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        .container {
            width: 100%;
            max-width: var(--container-width);
            margin: 0 auto;
            padding: 0 20px;
        }
        header {
            background: linear-gradient(135deg, var(--dark-color) 0%, var(--primary-color) 100%);
            color: white;
            padding: 1rem 0;
            position: sticky;
            top: 0;
            z-index: 1000;
            box-shadow: var(--shadow);
        }
        .header-content {
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        .logo {
            font-size: 2rem;
            font-weight: 800;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .logo i {
            color: var(--accent-color);
        }
        .logo span {
            background: linear-gradient(90deg, var(--accent-color), var(--secondary-color));
            -webkit-background-clip: text;
            background-clip: text;
            color: transparent;
        }
        .nav-desktop {
            display: flex;
            gap: 2rem;
        }
        .nav-desktop a {
            padding: 0.5rem 1rem;
            border-radius: var(--border-radius);
            font-weight: 600;
        }
        .nav-desktop a:hover {
            background-color: rgba(255, 255, 255, 0.1);
            transform: translateY(-2px);
        }
        .hamburger {
            display: none;
            font-size: 1.8rem;
            cursor: pointer;
            background: none;
            border: none;
            color: white;
        }
        .nav-mobile {
            display: none;
            flex-direction: column;
            background-color: var(--dark-color);
            position: absolute;
            top: 100%;
            left: 0;
            right: 0;
            padding: 1rem;
            box-shadow: var(--shadow);
        }
        .nav-mobile.active {
            display: flex;
        }
        .nav-mobile a {
            padding: 1rem;
            border-bottom: 1px solid rgba(255, 255, 255, 0.1);
        }
        .nav-mobile a:hover {
            background-color: rgba(255, 255, 255, 0.05);
            padding-left: 1.5rem;
        }
        .breadcrumb {
            background-color: #e8eaf6;
            padding: 1rem 0;
            margin-bottom: 2rem;
        }
        .breadcrumb-content {
            display: flex;
            gap: 0.5rem;
            flex-wrap: wrap;
        }
        .breadcrumb a {
            color: var(--primary-color);
        }
        .breadcrumb a:hover {
            text-decoration: underline;
        }
        .breadcrumb span {
            color: var(--text-light);
        }
        .search-section {
            background: linear-gradient(135deg, #e3f2fd 0%, #bbdefb 100%);
            padding: 3rem 0;
            margin-bottom: 3rem;
            border-radius: var(--border-radius);
            text-align: center;
        }
        .search-container {
            max-width: 600px;
            margin: 0 auto;
        }
        .search-form {
            display: flex;
            gap: 10px;
            margin-top: 1.5rem;
        }
        .search-input {
            flex: 1;
            padding: 1rem 1.5rem;
            border: 2px solid var(--accent-color);
            border-radius: 50px;
            font-size: 1rem;
            outline: none;
            transition: var(--transition);
        }
        .search-input:focus {
            box-shadow: 0 0 0 3px rgba(79, 195, 247, 0.3);
        }
        .search-btn {
            background: linear-gradient(90deg, var(--primary-color), var(--dark-color));
            color: white;
            border: none;
            padding: 0 2rem;
            border-radius: 50px;
            cursor: pointer;
            font-weight: 600;
            transition: var(--transition);
        }
        .search-btn:hover {
            transform: scale(1.05);
            box-shadow: 0 6px 15px rgba(26, 35, 126, 0.3);
        }
        .main-content {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 3rem;
            margin-bottom: 3rem;
        }
        @media (max-width: 992px) {
            .main-content {
                grid-template-columns: 1fr;
            }
        }
        .article-content {
            background: white;
            padding: 2.5rem;
            border-radius: var(--border-radius);
            box-shadow: var(--shadow);
        }
        .article-header {
            margin-bottom: 2.5rem;
            border-bottom: 3px solid var(--accent-color);
            padding-bottom: 1.5rem;
        }
        h1 {
            font-size: 2.5rem;
            color: var(--dark-color);
            margin-bottom: 1rem;
            line-height: 1.2;
        }
        .article-meta {
            display: flex;
            gap: 1.5rem;
            color: var(--text-light);
            font-size: 0.9rem;
        }
        .article-meta i {
            margin-right: 5px;
            color: var(--accent-color);
        }
        .content-section {
            margin-bottom: 3rem;
        }
        h2 {
            font-size: 1.8rem;
            color: var(--primary-color);
            margin-bottom: 1.5rem;
            padding-bottom: 0.5rem;
            border-bottom: 2px solid #e0e0e0;
        }
        h3 {
            font-size: 1.4rem;
            color: var(--secondary-color);
            margin: 1.5rem 0 1rem;
        }
        p {
            margin-bottom: 1.2rem;
            text-align: justify;
        }
        .highlight {
            background-color: #fff8e1;
            border-left: 4px solid var(--secondary-color);
            padding: 1.5rem;
            margin: 1.5rem 0;
            border-radius: 0 var(--border-radius) var(--border-radius) 0;
        }
        .highlight strong {
            color: var(--secondary-color);
        }
        .tip-box {
            background-color: #e8f5e9;
            border-left: 4px solid #4caf50;
            padding: 1.5rem;
            margin: 1.5rem 0;
            border-radius: 0 var(--border-radius) var(--border-radius) 0;
        }
        .hero-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
            gap: 1.5rem;
            margin: 2rem 0;
        }
        .hero-card {
            background: white;
            border-radius: var(--border-radius);
            overflow: hidden;
            box-shadow: 0 4px 8px rgba(0,0,0,0.1);
            transition: var(--transition);
        }
        .hero-card:hover {
            transform: translateY(-5px);
            box-shadow: 0 8px 16px rgba(0,0,0,0.15);
        }
        .hero-img {
            height: 150px;
            background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
            display: flex;
            align-items: center;
            justify-content: center;
            color: white;
            font-size: 3rem;
        }
        .hero-info {
            padding: 1rem;
        }
        .hero-info h4 {
            margin-bottom: 0.5rem;
            color: var(--primary-color);
        }
        .featured-image {
            margin: 2rem 0;
            text-align: center;
        }
        .featured-image img {
            border-radius: var(--border-radius);
            box-shadow: var(--shadow);
        }
        .image-caption {
            margin-top: 0.5rem;
            font-style: italic;
            color: var(--text-light);
            font-size: 0.9rem;
        }
        .rating-section, .comments-section {
            background: white;
            padding: 2rem;
            border-radius: var(--border-radius);
            box-shadow: var(--shadow);
            margin-top: 2rem;
        }
        .rating-form, .comment-form {
            display: flex;
            flex-direction: column;
            gap: 1rem;
            margin-top: 1.5rem;
        }
        .star-rating {
            display: flex;
            gap: 5px;
            font-size: 1.8rem;
            color: #ddd;
            margin-bottom: 1rem;
        }
        .star-rating i {
            cursor: pointer;
            transition: var(--transition);
        }
        .star-rating i:hover,
        .star-rating i.active {
            color: #ffc107;
        }
        .form-group {
            display: flex;
            flex-direction: column;
            gap: 0.5rem;
        }
        label {
            font-weight: 600;
            color: var(--primary-color);
        }
        input, textarea, select {
            padding: 0.8rem 1rem;
            border: 1px solid #ddd;
            border-radius: var(--border-radius);
            font-family: inherit;
            font-size: 1rem;
            transition: var(--transition);
        }
        input:focus, textarea:focus, select:focus {
            outline: none;
            border-color: var(--accent-color);
            box-shadow: 0 0 0 3px rgba(79, 195, 247, 0.2);
        }
        .submit-btn {
            background: linear-gradient(90deg, var(--primary-color), var(--dark-color));
            color: white;
            border: none;
            padding: 1rem 2rem;
            border-radius: var(--border-radius);
            cursor: pointer;
            font-weight: 600;
            font-size: 1rem;
            transition: var(--transition);
            align-self: flex-start;
        }
        .submit-btn:hover {
            transform: translateY(-2px);
            box-shadow: 0 6px 12px rgba(26, 35, 126, 0.3);
        }
        .comment {
            background-color: #f9f9f9;
            padding: 1.5rem;
            border-radius: var(--border-radius);
            margin-top: 1.5rem;
            border-left: 3px solid var(--accent-color);
        }
        .comment-header {
            display: flex;
            justify-content: space-between;
            margin-bottom: 0.8rem;
            font-size: 0.9rem;
            color: var(--text-light);
        }
        .comment-author {
            font-weight: 600;
            color: var(--primary-color);
        }
        .sidebar {
            display: flex;
            flex-direction: column;
            gap: 2rem;
        }
        .sidebar-widget {
            background: white;
            padding: 1.5rem;
            border-radius: var(--border-radius);
            box-shadow: var(--shadow);
        }
        .sidebar-title {
            font-size: 1.3rem;
            color: var(--primary-color);
            margin-bottom: 1.2rem;
            padding-bottom: 0.5rem;
            border-bottom: 2px solid #e0e0e0;
        }
        .sidebar-links {
            display: flex;
            flex-direction: column;
            gap: 0.8rem;
        }
        .sidebar-links a {
            padding: 0.5rem 0;
            border-bottom: 1px dashed #eee;
            transition: var(--transition);
        }
        .sidebar-links a:hover {
            padding-left: 10px;
            color: var(--secondary-color);
            border-bottom-color: var(--accent-color);
        }
        .cta-box {
            background: linear-gradient(135deg, var(--primary-color) 0%, var(--dark-color) 100%);
            color: white;
            text-align: center;
            padding: 2rem 1.5rem;
            border-radius: var(--border-radius);
        }
        .cta-box h3 {
            color: white;
            margin-bottom: 1rem;
        }
        .cta-btn {
            display: inline-block;
            background: linear-gradient(90deg, var(--secondary-color), #ff9100);
            color: white;
            padding: 0.8rem 2rem;
            border-radius: 50px;
            margin-top: 1rem;
            font-weight: 600;
            transition: var(--transition);
        }
        .cta-btn:hover {
            transform: scale(1.05);
            box-shadow: 0 6px 15px rgba(255, 111, 0, 0.4);
        }
        .footer-links {
            background: var(--dark-color);
            padding: 3rem 0;
            margin-top: 3rem;
        }
        .web-link {
            background: rgba(255, 255, 255, 0.05);
            padding: 1.2rem;
            margin-bottom: 1rem;
            border-radius: var(--border-radius);
            transition: var(--transition);
        }
        .web-link:hover {
            background: rgba(255, 255, 255, 0.1);
            transform: translateX(10px);
        }
        .web-link a {
            color: var(--accent-color);
            font-weight: 600;
            display: block;
        }
        .web-link a:hover {
            color: white;
        }
        footer {
            background: #0a0f2b;
            color: #aaa;
            padding: 3rem 0 1.5rem;
        }
        .footer-content {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 2rem;
            margin-bottom: 2rem;
        }
        .footer-section h3 {
            color: white;
            font-size: 1.3rem;
            margin-bottom: 1.5rem;
        }
        .footer-links a {
            display: block;
            padding: 0.5rem 0;
            transition: var(--transition);
        }
        .footer-links a:hover {
            color: white;
            padding-left: 10px;
        }
        .social-links {
            display: flex;
            gap: 1rem;
            margin-top: 1.5rem;
        }
        .social-links a {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 40px;
            height: 40px;
            background: rgba(255, 255, 255, 0.1);
            border-radius: 50%;
            transition: var(--transition);
        }
        .social-links a:hover {
            background: var(--accent-color);
            transform: translateY(-3px);
        }
        .copyright {
            text-align: center;
            padding-top: 1.5rem;
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            font-size: 0.9rem;
        }
        @media (max-width: 768px) {
            .header-content {
                flex-wrap: wrap;
            }
            .nav-desktop {
                display: none;
            }
            .hamburger {
                display: block;
            }
            h1 {
                font-size: 2rem;
            }
            .article-meta {
                flex-direction: column;
                gap: 0.5rem;
            }
            .search-form {
                flex-direction: column;
            }
            .search-input, .search-btn {
                width: 100%;
            }
            .hero-grid {
                grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
            }
        }
        @media (max-width: 480px) {
            .article-content, .sidebar-widget, .rating-section, .comments-section {
                padding: 1.5rem;
            }
            .hero-grid {
                grid-template-columns: 1fr 1fr;
            }
            .footer-content {
                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 forwards;
        }
        @media print {
            header, .search-section, .sidebar, .footer-links, footer, .rating-section, .comments-section, .hamburger {
                display: none !important;
            }
            .main-content {
                grid-template-columns: 1fr;
            }
            body {
                background: white;
                color: black;
            }
            .article-content {
                box-shadow: none;
                padding: 0;
            }
        }