* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        :root {
            --primary-color: #4CAF50;
            --secondary-color: #2196F3;
            --accent-color: #FF9800;
            --dark-color: #333;
            --light-color: #f8f9fa;
            --text-color: #333;
            --text-light: #666;
            --border-color: #ddd;
            --shadow: 0 2px 10px rgba(0,0,0,0.1);
            --transition: all 0.3s ease;
        }
        body {
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
            line-height: 1.6;
            color: var(--text-color);
            background-color: #fff;
            overflow-x: hidden;
        }
        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 15px;
        }
        .header {
            background: linear-gradient(135deg, var(--primary-color) 0%, #2E7D32 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: 1.8rem;
            font-weight: 700;
            color: white;
            text-decoration: none;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .logo i {
            font-size: 2rem;
        }
        .nav-desktop {
            display: flex;
            gap: 1.5rem;
        }
        .nav-link {
            color: white;
            text-decoration: none;
            font-weight: 500;
            padding: 0.5rem 1rem;
            border-radius: 4px;
            transition: var(--transition);
        }
        .nav-link:hover {
            background-color: rgba(255,255,255,0.2);
        }
        .mobile-menu-btn {
            display: none;
            background: none;
            border: none;
            color: white;
            font-size: 1.5rem;
            cursor: pointer;
        }
        .mobile-nav {
            display: none;
            flex-direction: column;
            background-color: var(--primary-color);
            position: absolute;
            top: 100%;
            left: 0;
            right: 0;
            padding: 1rem;
            box-shadow: var(--shadow);
        }
        .mobile-nav.active {
            display: flex;
        }
        .breadcrumb {
            background-color: var(--light-color);
            padding: 1rem 0;
            margin-bottom: 2rem;
        }
        .breadcrumb-content {
            display: flex;
            gap: 0.5rem;
            flex-wrap: wrap;
        }
        .breadcrumb-item {
            color: var(--text-light);
            text-decoration: none;
        }
        .breadcrumb-item:hover {
            color: var(--primary-color);
        }
        .breadcrumb-separator {
            color: var(--text-light);
        }
        .main-content {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 2rem;
            margin: 2rem 0;
        }
        @media (max-width: 992px) {
            .main-content {
                grid-template-columns: 1fr;
            }
        }
        .article-header {
            margin-bottom: 2rem;
        }
        .article-title {
            font-size: 2.2rem;
            color: var(--dark-color);
            margin-bottom: 1rem;
            line-height: 1.3;
        }
        .article-meta {
            display: flex;
            gap: 1rem;
            color: var(--text-light);
            font-size: 0.9rem;
            margin-bottom: 1rem;
        }
        .article-content {
            font-size: 1.1rem;
            line-height: 1.8;
        }
        .article-section {
            margin-bottom: 3rem;
        }
        .section-title {
            font-size: 1.8rem;
            color: var(--primary-color);
            margin: 2rem 0 1rem;
            padding-bottom: 0.5rem;
            border-bottom: 2px solid var(--border-color);
        }
        .section-subtitle {
            font-size: 1.4rem;
            color: var(--secondary-color);
            margin: 1.5rem 0 1rem;
        }
        .highlight-box {
            background-color: var(--light-color);
            border-left: 4px solid var(--accent-color);
            padding: 1.5rem;
            margin: 1.5rem 0;
            border-radius: 0 4px 4px 0;
        }
        .feature-list {
            list-style-type: none;
            margin: 1.5rem 0;
        }
        .feature-list li {
            padding: 0.5rem 0;
            padding-left: 2rem;
            position: relative;
        }
        .feature-list li:before {
            content: "✓";
            color: var(--primary-color);
            font-weight: bold;
            position: absolute;
            left: 0;
        }
        .article-image {
            width: 100%;
            height: auto;
            border-radius: 8px;
            margin: 2rem 0;
            box-shadow: var(--shadow);
        }
        .image-caption {
            text-align: center;
            font-style: italic;
            color: var(--text-light);
            margin-top: 0.5rem;
            font-size: 0.9rem;
        }
        .sidebar {
            background-color: var(--light-color);
            padding: 1.5rem;
            border-radius: 8px;
            height: fit-content;
            position: sticky;
            top: 100px;
        }
        .sidebar-widget {
            margin-bottom: 2rem;
        }
        .widget-title {
            font-size: 1.2rem;
            color: var(--dark-color);
            margin-bottom: 1rem;
            padding-bottom: 0.5rem;
            border-bottom: 2px solid var(--border-color);
        }
        .search-form {
            display: flex;
            margin-bottom: 1rem;
        }
        .search-input {
            flex: 1;
            padding: 0.8rem;
            border: 1px solid var(--border-color);
            border-radius: 4px 0 0 4px;
            font-size: 1rem;
        }
        .search-button {
            background-color: var(--primary-color);
            color: white;
            border: none;
            padding: 0 1.5rem;
            border-radius: 0 4px 4px 0;
            cursor: pointer;
            transition: var(--transition);
        }
        .search-button:hover {
            background-color: #3d8b40;
        }
        .rating-form {
            background-color: white;
            padding: 1.5rem;
            border-radius: 8px;
            box-shadow: var(--shadow);
        }
        .rating-stars {
            display: flex;
            gap: 0.5rem;
            margin: 1rem 0;
            direction: ltr;
        }
        .star {
            font-size: 1.5rem;
            color: #ddd;
            cursor: pointer;
            transition: var(--transition);
        }
        .star:hover,
        .star.active {
            color: var(--accent-color);
        }
        .form-group {
            margin-bottom: 1rem;
        }
        .form-input {
            width: 100%;
            padding: 0.8rem;
            border: 1px solid var(--border-color);
            border-radius: 4px;
            font-size: 1rem;
        }
        .form-textarea {
            min-height: 100px;
            resize: vertical;
        }
        .submit-button {
            background-color: var(--secondary-color);
            color: white;
            border: none;
            padding: 0.8rem 2rem;
            border-radius: 4px;
            font-size: 1rem;
            cursor: pointer;
            transition: var(--transition);
            width: 100%;
        }
        .submit-button:hover {
            background-color: #0b7dda;
        }
        .comments-section {
            margin-top: 3rem;
            padding-top: 2rem;
            border-top: 2px solid var(--border-color);
        }
        .comment {
            background-color: var(--light-color);
            padding: 1.5rem;
            border-radius: 8px;
            margin-bottom: 1.5rem;
            box-shadow: var(--shadow);
        }
        .comment-header {
            display: flex;
            justify-content: space-between;
            margin-bottom: 1rem;
            flex-wrap: wrap;
        }
        .comment-author {
            font-weight: bold;
            color: var(--primary-color);
        }
        .comment-date {
            color: var(--text-light);
            font-size: 0.9rem;
        }
        .footer-links {
            background-color: var(--dark-color);
            color: white;
            padding: 3rem 0;
            margin-top: 4rem;
        }
        .web-link {
            display: inline-block;
            background-color: rgba(255,255,255,0.1);
            padding: 0.8rem 1.5rem;
            margin: 0.5rem;
            border-radius: 4px;
            transition: var(--transition);
        }
        .web-link a {
            color: white;
            text-decoration: none;
        }
        .web-link:hover {
            background-color: var(--primary-color);
            transform: translateY(-3px);
        }
        .links-container {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 0.5rem;
        }
        .footer {
            background-color: #222;
            color: white;
            padding: 2rem 0;
            text-align: center;
        }
        .footer-content {
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 1rem;
        }
        .copyright {
            color: #aaa;
            font-size: 0.9rem;
        }
        @media (max-width: 768px) {
            .nav-desktop {
                display: none;
            }
            .mobile-menu-btn {
                display: block;
            }
            .article-title {
                font-size: 1.8rem;
            }
            .section-title {
                font-size: 1.5rem;
            }
            .footer-content {
                flex-direction: column;
                text-align: center;
            }
            .header-content {
                flex-wrap: wrap;
            }
        }
        .highlight {
            background-color: #fff9c4;
            padding: 0.2rem 0.4rem;
            border-radius: 3px;
        }
        .tip-box {
            background-color: #e3f2fd;
            border-left: 4px solid var(--secondary-color);
            padding: 1.5rem;
            margin: 1.5rem 0;
            border-radius: 0 4px 4px 0;
            position: relative;
            overflow: hidden;
        }
        .tip-box:before {
            content: "💡";
            position: absolute;
            top: 10px;
            right: 10px;
            font-size: 1.5rem;
            opacity: 0.2;
        }
        .btn {
            display: inline-block;
            background-color: var(--primary-color);
            color: white;
            padding: 0.8rem 1.5rem;
            border-radius: 4px;
            text-decoration: none;
            font-weight: 500;
            transition: var(--transition);
            border: none;
            cursor: pointer;
        }
        .btn:hover {
            background-color: #3d8b40;
            transform: translateY(-2px);
            box-shadow: 0 4px 8px rgba(0,0,0,0.2);
        }
        .btn-secondary {
            background-color: var(--secondary-color);
        }
        .btn-secondary:hover {
            background-color: #0b7dda;
        }
        .comparison-table {
            width: 100%;
            border-collapse: collapse;
            margin: 2rem 0;
            box-shadow: var(--shadow);
        }
        .comparison-table th {
            background-color: var(--primary-color);
            color: white;
            padding: 1rem;
            text-align: left;
        }
        .comparison-table td {
            padding: 1rem;
            border-bottom: 1px solid var(--border-color);
        }
        .comparison-table tr:nth-child(even) {
            background-color: var(--light-color);
        }
        .comparison-table tr:hover {
            background-color: rgba(76, 175, 80, 0.1);
        }
        @media print {
            .header, .sidebar, .footer-links, .footer, .mobile-menu-btn {
                display: none !important;
            }
            .main-content {
                grid-template-columns: 1fr;
            }
            body {
                font-size: 12pt;
                line-height: 1.5;
            }
        }