* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        :root {
            --primary-color: #0d6efd;
            --secondary-color: #198754;
            --accent-color: #dc3545;
            --dark-color: #212529;
            --light-color: #f8f9fa;
            --gray-color: #6c757d;
            --shadow: 0 4px 12px rgba(0,0,0,0.1);
            --transition: all 0.3s ease;
        }
        body {
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
            line-height: 1.8;
            color: var(--dark-color);
            background-color: #fff;
            overflow-x: hidden;
        }
        a {
            text-decoration: none;
            color: var(--primary-color);
            transition: var(--transition);
        }
        a:hover {
            color: var(--accent-color);
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        .main-header {
            background-color: var(--dark-color);
            color: white;
            padding: 15px 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: 2.2rem;
            font-weight: 800;
            color: white;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .logo i {
            color: var(--accent-color);
        }
        .logo span {
            color: var(--primary-color);
            font-style: italic;
        }
        .main-nav {
            display: flex;
            gap: 30px;
        }
        .main-nav a {
            color: white;
            font-weight: 600;
            padding: 8px 0;
            position: relative;
        }
        .main-nav a::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 0;
            height: 3px;
            background-color: var(--accent-color);
            transition: var(--transition);
        }
        .main-nav a:hover::after {
            width: 100%;
        }
        .hamburger {
            display: none;
            font-size: 1.8rem;
            background: none;
            border: none;
            color: white;
            cursor: pointer;
        }
        .breadcrumb {
            background-color: var(--light-color);
            padding: 15px 0;
            border-bottom: 1px solid #dee2e6;
        }
        .breadcrumb nav ol {
            display: flex;
            list-style: none;
            flex-wrap: wrap;
            gap: 10px;
        }
        .breadcrumb li {
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .breadcrumb li:not(:last-child)::after {
            content: '›';
            color: var(--gray-color);
        }
        .search-section {
            background: linear-gradient(135deg, var(--primary-color), #0a58ca);
            color: white;
            padding: 40px 0;
            text-align: center;
        }
        .search-form {
            max-width: 600px;
            margin: 0 auto;
            display: flex;
            gap: 10px;
        }
        .search-input {
            flex: 1;
            padding: 15px 20px;
            border: none;
            border-radius: 50px;
            font-size: 1.1rem;
            box-shadow: var(--shadow);
        }
        .search-btn {
            background-color: var(--accent-color);
            color: white;
            border: none;
            border-radius: 50px;
            padding: 0 30px;
            font-weight: 600;
            cursor: pointer;
            transition: var(--transition);
        }
        .search-btn:hover {
            background-color: #bb2d3b;
            transform: translateY(-2px);
        }
        .main-content {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 40px;
            padding: 40px 0;
        }
        @media (max-width: 992px) {
            .main-content {
                grid-template-columns: 1fr;
            }
        }
        .article-content {
            background-color: white;
            padding: 30px;
            border-radius: 10px;
            box-shadow: var(--shadow);
        }
        .article-header {
            margin-bottom: 40px;
        }
        .article-title {
            font-size: 2.8rem;
            color: var(--dark-color);
            margin-bottom: 20px;
            line-height: 1.3;
        }
        .article-meta {
            display: flex;
            gap: 20px;
            color: var(--gray-color);
            margin-bottom: 20px;
        }
        .featured-image {
            width: 100%;
            border-radius: 10px;
            overflow: hidden;
            margin: 30px 0;
            box-shadow: var(--shadow);
        }
        .featured-image img {
            width: 100%;
            height: 400px;
            object-fit: cover;
            transition: var(--transition);
        }
        .featured-image:hover img {
            transform: scale(1.03);
        }
        .image-caption {
            text-align: center;
            padding: 10px;
            background-color: var(--light-color);
            color: var(--gray-color);
            font-style: italic;
        }
        .content-section {
            margin-bottom: 50px;
        }
        .section-title {
            font-size: 2rem;
            color: var(--dark-color);
            margin-bottom: 20px;
            padding-bottom: 10px;
            border-bottom: 3px solid var(--primary-color);
            position: relative;
        }
        .section-title::after {
            content: '';
            position: absolute;
            bottom: -3px;
            left: 0;
            width: 100px;
            height: 3px;
            background-color: var(--accent-color);
        }
        .highlight-box {
            background-color: var(--light-color);
            border-left: 5px solid var(--primary-color);
            padding: 25px;
            margin: 30px 0;
            border-radius: 0 10px 10px 0;
        }
        .highlight-box strong {
            color: var(--primary-color);
            display: block;
            margin-bottom: 10px;
            font-size: 1.2rem;
        }
        .stats-table {
            width: 100%;
            border-collapse: collapse;
            margin: 30px 0;
            box-shadow: var(--shadow);
        }
        .stats-table th, .stats-table td {
            padding: 15px;
            text-align: left;
            border-bottom: 1px solid #dee2e6;
        }
        .stats-table th {
            background-color: var(--primary-color);
            color: white;
            font-weight: 600;
        }
        .stats-table tr:nth-child(even) {
            background-color: var(--light-color);
        }
        .stats-table tr:hover {
            background-color: #e9ecef;
        }
        .steps-container {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 30px;
            margin: 40px 0;
        }
        .step-card {
            background-color: white;
            border-radius: 10px;
            padding: 30px;
            text-align: center;
            box-shadow: var(--shadow);
            border-top: 5px solid var(--primary-color);
            transition: var(--transition);
        }
        .step-card:hover {
            transform: translateY(-10px);
        }
        .step-number {
            width: 60px;
            height: 60px;
            background-color: var(--primary-color);
            color: white;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.8rem;
            font-weight: 800;
            margin: 0 auto 20px;
        }
        .sidebar {
            display: flex;
            flex-direction: column;
            gap: 30px;
        }
        .sidebar-widget {
            background-color: white;
            padding: 25px;
            border-radius: 10px;
            box-shadow: var(--shadow);
        }
        .widget-title {
            font-size: 1.5rem;
            color: var(--dark-color);
            margin-bottom: 20px;
            padding-bottom: 10px;
            border-bottom: 2px solid var(--primary-color);
        }
        .related-links {
            list-style: none;
        }
        .related-links li {
            padding: 12px 0;
            border-bottom: 1px solid #dee2e6;
        }
        .related-links li:last-child {
            border-bottom: none;
        }
        .related-links a {
            display: flex;
            align-items: center;
            gap: 10px;
            color: var(--dark-color);
        }
        .related-links a:hover {
            color: var(--primary-color);
        }
        .rating-section {
            background-color: var(--light-color);
            padding: 40px;
            border-radius: 10px;
            text-align: center;
            margin: 40px 0;
        }
        .stars {
            display: flex;
            justify-content: center;
            gap: 5px;
            margin: 20px 0;
        }
        .star {
            font-size: 2rem;
            color: #ffc107;
            cursor: pointer;
            transition: var(--transition);
        }
        .star:hover {
            transform: scale(1.2);
        }
        .rating-form {
            max-width: 500px;
            margin: 30px auto 0;
        }
        .rating-form input, .rating-form select {
            width: 100%;
            padding: 12px;
            margin-bottom: 15px;
            border: 1px solid #dee2e6;
            border-radius: 5px;
        }
        .comments-section {
            background-color: white;
            padding: 40px;
            border-radius: 10px;
            box-shadow: var(--shadow);
            margin: 40px 0;
        }
        .comment-form {
            margin-bottom: 40px;
        }
        .comment-form textarea {
            width: 100%;
            padding: 15px;
            border: 1px solid #dee2e6;
            border-radius: 5px;
            resize: vertical;
            min-height: 150px;
            margin-bottom: 15px;
        }
        .comment {
            padding: 20px;
            border-bottom: 1px solid #dee2e6;
            margin-bottom: 20px;
        }
        .comment-header {
            display: flex;
            justify-content: space-between;
            margin-bottom: 10px;
            color: var(--gray-color);
        }
        .comment-author {
            font-weight: 600;
            color: var(--dark-color);
        }
        .web-links-section {
            background-color: var(--light-color);
            padding: 50px 0;
            margin-top: 50px;
        }
        .web-links-container {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
            gap: 20px;
        }
        .web-link {
            background-color: white;
            padding: 20px;
            border-radius: 8px;
            text-align: center;
            box-shadow: var(--shadow);
            transition: var(--transition);
        }
        .web-link:hover {
            transform: translateY(-5px);
            border-color: var(--primary-color);
        }
        .main-footer {
            background-color: var(--dark-color);
            color: white;
            padding: 60px 0 30px;
        }
        .footer-content {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 40px;
            margin-bottom: 40px;
        }
        .footer-section h3 {
            font-size: 1.5rem;
            margin-bottom: 20px;
            color: white;
        }
        .footer-links {
            list-style: none;
        }
        .footer-links li {
            margin-bottom: 10px;
        }
        .footer-links a {
            color: #adb5bd;
        }
        .footer-links a:hover {
            color: white;
            padding-left: 5px;
        }
        .copyright {
            text-align: center;
            padding-top: 30px;
            border-top: 1px solid #495057;
            color: #adb5bd;
        }
        .btn {
            display: inline-block;
            padding: 12px 30px;
            background-color: var(--primary-color);
            color: white;
            border-radius: 50px;
            font-weight: 600;
            border: none;
            cursor: pointer;
            transition: var(--transition);
        }
        .btn:hover {
            background-color: #0b5ed7;
            transform: translateY(-2px);
            box-shadow: var(--shadow);
        }
        .btn-accent {
            background-color: var(--accent-color);
        }
        .btn-accent:hover {
            background-color: #bb2d3b;
        }
        .text-center { text-align: center; }
        .mb-20 { margin-bottom: 20px; }
        .mb-30 { margin-bottom: 30px; }
        .mt-40 { margin-top: 40px; }
        .p-30 { padding: 30px; }
        .text-primary { color: var(--primary-color); }
        .text-accent { color: var(--accent-color); }
        .bold { font-weight: 700; }
        .italic { font-style: italic; }
        @media (max-width: 768px) {
            .hamburger {
                display: block;
            }
            .main-nav {
                position: fixed;
                top: 70px;
                left: -100%;
                width: 100%;
                height: calc(100vh - 70px);
                background-color: var(--dark-color);
                flex-direction: column;
                align-items: center;
                padding: 40px 20px;
                transition: var(--transition);
                gap: 20px;
            }
            .main-nav.active {
                left: 0;
            }
            .article-title {
                font-size: 2rem;
            }
            .search-form {
                flex-direction: column;
            }
            .search-btn {
                padding: 15px;
            }
            .steps-container {
                grid-template-columns: 1fr;
            }
            .web-links-container {
                grid-template-columns: 1fr;
            }
        }
        @media print {
            .main-nav, .search-section, .sidebar, .web-links-section, .comment-form, .rating-form {
                display: none;
            }
        }