:root {
            --primary: #ff6b35;
            --primary-dark: #e55a2b;
            --secondary: #1a73e8;
            --dark: #202124;
            --light: #f8f9fa;
            --gray: #5f6368;
            --light-gray: #dadce0;
            --shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
            --radius: 8px;
            --transition: all 0.3s ease;
            --max-width: 1200px;
        }
        * {
            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: var(--dark);
            background-color: #fff;
            overflow-x: hidden;
        }
        a {
            text-decoration: none;
            color: inherit;
        }
        ul {
            list-style: none;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        .container {
            width: 100%;
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 20px;
        }
        .btn {
            display: inline-block;
            padding: 12px 28px;
            background-color: var(--primary);
            color: white;
            border-radius: var(--radius);
            font-weight: 600;
            border: none;
            cursor: pointer;
            transition: var(--transition);
            text-align: center;
        }
        .btn:hover {
            background-color: var(--primary-dark);
            transform: translateY(-2px);
        }
        .btn-secondary {
            background-color: var(--secondary);
        }
        .btn-secondary:hover {
            background-color: #0d62d9;
        }
        header {
            background-color: white;
            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 {
            font-size: 1.8rem;
            font-weight: 800;
            color: var(--primary);
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .logo span {
            color: var(--dark);
        }
        .search-form {
            display: flex;
            max-width: 400px;
            width: 100%;
        }
        .search-form input {
            flex: 1;
            padding: 12px 16px;
            border: 2px solid var(--light-gray);
            border-radius: var(--radius) 0 0 var(--radius);
            font-size: 1rem;
        }
        .search-form button {
            background-color: var(--secondary);
            color: white;
            border: none;
            padding: 0 20px;
            border-radius: 0 var(--radius) var(--radius) 0;
            cursor: pointer;
        }
        .mobile-toggle {
            display: none;
            font-size: 1.5rem;
            cursor: pointer;
            color: var(--dark);
        }
        nav {
            background-color: var(--dark);
        }
        .nav-links {
            display: flex;
            justify-content: center;
        }
        .nav-links li {
            position: relative;
        }
        .nav-links a {
            display: block;
            padding: 18px 22px;
            color: white;
            font-weight: 500;
            transition: var(--transition);
        }
        .nav-links a:hover {
            background-color: rgba(255,255,255,0.1);
            color: var(--primary);
        }
        .nav-links a i {
            margin-right: 8px;
        }
        .breadcrumb {
            padding: 15px 0;
            background-color: #f1f3f4;
            font-size: 0.9rem;
        }
        .breadcrumb .container {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
        }
        .breadcrumb a {
            color: var(--gray);
        }
        .breadcrumb a:hover {
            color: var(--primary);
        }
        .breadcrumb span {
            margin: 0 8px;
            color: var(--light-gray);
        }
        .hero {
            padding: 60px 0 40px;
            background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
            text-align: center;
        }
        .hero h1 {
            font-size: 2.8rem;
            margin-bottom: 20px;
            color: var(--dark);
            line-height: 1.2;
        }
        .hero p {
            font-size: 1.2rem;
            color: var(--gray);
            max-width: 800px;
            margin: 0 auto 30px;
        }
        .hero-badges {
            display: flex;
            justify-content: center;
            gap: 15px;
            flex-wrap: wrap;
            margin-top: 30px;
        }
        .badge {
            background: white;
            padding: 10px 20px;
            border-radius: 50px;
            box-shadow: var(--shadow);
            font-weight: 600;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        main {
            padding: 40px 0;
        }
        .content-grid {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 40px;
        }
        article {
            background: white;
            border-radius: var(--radius);
            overflow: hidden;
            box-shadow: var(--shadow);
        }
        .article-header {
            padding: 30px;
            border-bottom: 1px solid var(--light-gray);
        }
        .article-header h2 {
            font-size: 2.2rem;
            margin-bottom: 15px;
            color: var(--dark);
        }
        .meta {
            display: flex;
            gap: 20px;
            color: var(--gray);
            font-size: 0.9rem;
        }
        .meta span {
            display: flex;
            align-items: center;
            gap: 5px;
        }
        .article-content {
            padding: 30px;
        }
        .article-content h3 {
            font-size: 1.8rem;
            margin: 30px 0 15px;
            color: var(--dark);
            padding-bottom: 10px;
            border-bottom: 2px solid var(--light-gray);
        }
        .article-content h4 {
            font-size: 1.4rem;
            margin: 25px 0 10px;
            color: var(--dark);
        }
        .article-content p {
            margin-bottom: 20px;
            font-size: 1.1rem;
            line-height: 1.7;
        }
        .article-content ul, .article-content ol {
            margin-bottom: 20px;
            padding-left: 30px;
        }
        .article-content li {
            margin-bottom: 10px;
        }
        .highlight {
            background-color: #fff8e1;
            border-left: 4px solid var(--primary);
            padding: 20px;
            margin: 25px 0;
            border-radius: 0 var(--radius) var(--radius) 0;
        }
        .note {
            background-color: #e8f0fe;
            border-left: 4px solid var(--secondary);
            padding: 20px;
            margin: 25px 0;
            border-radius: 0 var(--radius) var(--radius) 0;
        }
        .image-container {
            margin: 30px 0;
            text-align: center;
        }
        .image-container img {
            border-radius: var(--radius);
            box-shadow: var(--shadow);
            margin: 0 auto;
        }
        .image-caption {
            font-style: italic;
            color: var(--gray);
            margin-top: 10px;
            font-size: 0.9rem;
        }
        .steps {
            counter-reset: step-counter;
            margin: 30px 0;
        }
        .step {
            counter-increment: step-counter;
            margin-bottom: 25px;
            padding-left: 60px;
            position: relative;
        }
        .step:before {
            content: counter(step-counter);
            position: absolute;
            left: 0;
            top: 0;
            background-color: var(--primary);
            color: white;
            width: 40px;
            height: 40px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: bold;
            font-size: 1.2rem;
        }
        .table-container {
            overflow-x: auto;
            margin: 30px 0;
        }
        table {
            width: 100%;
            border-collapse: collapse;
            min-width: 600px;
        }
        th, td {
            padding: 15px;
            text-align: left;
            border-bottom: 1px solid var(--light-gray);
        }
        th {
            background-color: #f1f3f4;
            font-weight: 600;
        }
        tr:hover {
            background-color: #f8f9fa;
        }
        aside {
            display: flex;
            flex-direction: column;
            gap: 30px;
        }
        .sidebar-widget {
            background: white;
            border-radius: var(--radius);
            padding: 25px;
            box-shadow: var(--shadow);
        }
        .sidebar-widget h3 {
            font-size: 1.4rem;
            margin-bottom: 20px;
            padding-bottom: 10px;
            border-bottom: 2px solid var(--light-gray);
            color: var(--dark);
        }
        .rating-widget {
            text-align: center;
        }
        .stars {
            font-size: 2rem;
            color: #ffc107;
            margin-bottom: 15px;
        }
        .rating-form {
            display: flex;
            flex-direction: column;
            gap: 15px;
        }
        .rating-form select, .rating-form textarea {
            padding: 12px;
            border: 1px solid var(--light-gray);
            border-radius: var(--radius);
            font-family: inherit;
        }
        .rating-form textarea {
            min-height: 100px;
            resize: vertical;
        }
        .popular-links ul {
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .popular-links a {
            display: flex;
            align-items: center;
            gap: 10px;
            padding: 12px;
            border-radius: var(--radius);
            transition: var(--transition);
        }
        .popular-links a:hover {
            background-color: #f1f3f4;
            color: var(--primary);
        }
        .popular-links i {
            color: var(--primary);
        }
        .comments-section {
            margin-top: 50px;
        }
        .comments-section h2 {
            font-size: 2rem;
            margin-bottom: 30px;
            color: var(--dark);
        }
        .comment-form {
            background: white;
            border-radius: var(--radius);
            padding: 30px;
            box-shadow: var(--shadow);
            margin-bottom: 40px;
        }
        .form-group {
            margin-bottom: 20px;
        }
        .form-group label {
            display: block;
            margin-bottom: 8px;
            font-weight: 600;
        }
        .form-group input,
        .form-group textarea {
            width: 100%;
            padding: 12px 15px;
            border: 1px solid var(--light-gray);
            border-radius: var(--radius);
            font-family: inherit;
            font-size: 1rem;
        }
        .form-group textarea {
            min-height: 150px;
            resize: vertical;
        }
        .form-row {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 20px;
        }
        .comments-list {
            display: flex;
            flex-direction: column;
            gap: 25px;
        }
        .comment {
            background: white;
            border-radius: var(--radius);
            padding: 25px;
            box-shadow: var(--shadow);
        }
        .comment-header {
            display: flex;
            justify-content: space-between;
            align-items: center;
            margin-bottom: 15px;
            flex-wrap: wrap;
            gap: 10px;
        }
        .comment-author {
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .comment-author img {
            width: 50px;
            height: 50px;
            border-radius: 50%;
            object-fit: cover;
        }
        .comment-author h4 {
            font-size: 1.1rem;
            margin-bottom: 5px;
        }
        .comment-date {
            color: var(--gray);
            font-size: 0.9rem;
        }
        .comment-rating {
            color: #ffc107;
        }
        .comment-body p {
            line-height: 1.6;
        }
        .web-links {
            background-color: #f8f9fa;
            padding: 50px 0;
            margin-top: 50px;
        }
        .web-links .container {
            display: grid;
            grid-template-columns: repeat(5, 1fr);
            gap: 15px;
        }
        .web-link {
            background: white;
            padding: 15px;
            border-radius: var(--radius);
            box-shadow: 0 2px 5px rgba(0,0,0,0.05);
            transition: var(--transition);
        }
        .web-link:hover {
            transform: translateY(-3px);
            box-shadow: 0 5px 15px rgba(0,0,0,0.1);
        }
        .web-link a {
            color: var(--secondary);
            font-weight: 500;
            display: block;
        }
        .web-link a:hover {
            color: var(--primary);
        }
        footer {
            background-color: var(--dark);
            color: white;
            padding: 50px 0 20px;
        }
        .footer-content {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 40px;
            margin-bottom: 40px;
        }
        .footer-col h3 {
            font-size: 1.3rem;
            margin-bottom: 20px;
            color: var(--primary);
        }
        .footer-links li {
            margin-bottom: 12px;
        }
        .footer-links a {
            color: #bdc1c6;
            transition: var(--transition);
        }
        .footer-links a:hover {
            color: var(--primary);
            padding-left: 5px;
        }
        .footer-bottom {
            text-align: center;
            padding-top: 20px;
            border-top: 1px solid #3c4043;
            color: #9aa0a6;
            font-size: 0.9rem;
        }
        @media (max-width: 992px) {
            .content-grid {
                grid-template-columns: 1fr;
            }
            .web-links .container {
                grid-template-columns: repeat(3, 1fr);
            }
            .footer-content {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        @media (max-width: 768px) {
            .mobile-toggle {
                display: block;
            }
            .search-form {
                display: none;
            }
            .nav-links {
                display: none;
                flex-direction: column;
                position: absolute;
                top: 100%;
                left: 0;
                width: 100%;
                background-color: var(--dark);
                box-shadow: var(--shadow);
            }
            .nav-links.active {
                display: flex;
            }
            .nav-links a {
                padding: 15px 20px;
                border-bottom: 1px solid #3c4043;
            }
            .hero h1 {
                font-size: 2.2rem;
            }
            .form-row {
                grid-template-columns: 1fr;
            }
            .web-links .container {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        @media (max-width: 576px) {
            .hero h1 {
                font-size: 1.8rem;
            }
            .hero p {
                font-size: 1rem;
            }
            .badge {
                font-size: 0.9rem;
                padding: 8px 15px;
            }
            .article-header h2 {
                font-size: 1.8rem;
            }
            .meta {
                flex-direction: column;
                gap: 10px;
            }
            .web-links .container {
                grid-template-columns: 1fr;
            }
            .footer-content {
                grid-template-columns: 1fr;
            }
        }