:root {
            --primary-dark: #1a1f2e;
            --primary-accent: #e44d26;
            --secondary-accent: #4a90e2;
            --text-primary: #f0f0f0;
            --text-secondary: #b8c2cc;
            --surface-dark: #252a3a;
            --surface-light: #2d3346;
            --border-color: #3a4158;
            --success-color: #2ecc71;
            --warning-color: #f39c12;
            --font-main: 'Segoe UI', system-ui, -apple-system, sans-serif;
            --shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
            --transition: all 0.3s ease;
        }
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: var(--font-main);
            background-color: var(--primary-dark);
            color: var(--text-primary);
            line-height: 1.6;
            overflow-x: hidden;
        }
        a {
            color: var(--secondary-accent);
            text-decoration: none;
            transition: var(--transition);
        }
        a:hover {
            color: var(--primary-accent);
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        .site-header {
            background-color: var(--surface-dark);
            box-shadow: var(--shadow);
            position: sticky;
            top: 0;
            z-index: 1000;
            padding: 15px 0;
        }
        .header-content {
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        .logo a {
            font-size: 2rem;
            font-weight: 800;
            color: var(--primary-accent);
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .logo i {
            font-size: 2.2rem;
        }
        .nav-desktop {
            display: flex;
            gap: 30px;
        }
        .nav-desktop a {
            font-weight: 600;
            padding: 8px 0;
            position: relative;
        }
        .nav-desktop a::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 0;
            height: 2px;
            background-color: var(--primary-accent);
            transition: var(--transition);
        }
        .nav-desktop a:hover::after {
            width: 100%;
        }
        .mobile-toggle {
            display: none;
            background: none;
            border: none;
            color: var(--text-primary);
            font-size: 1.5rem;
            cursor: pointer;
        }
        .nav-mobile {
            display: none;
            flex-direction: column;
            background-color: var(--surface-light);
            position: absolute;
            top: 100%;
            left: 0;
            width: 100%;
            padding: 20px;
            box-shadow: var(--shadow);
        }
        .nav-mobile.active {
            display: flex;
        }
        .nav-mobile a {
            padding: 12px 0;
            border-bottom: 1px solid var(--border-color);
            font-weight: 600;
        }
        .breadcrumb {
            background-color: var(--surface-light);
            padding: 12px 0;
            margin-bottom: 30px;
            font-size: 0.9rem;
        }
        .breadcrumb ul {
            display: flex;
            flex-wrap: wrap;
            list-style: none;
            gap: 10px;
        }
        .breadcrumb li:not(:last-child)::after {
            content: '›';
            margin-left: 10px;
            color: var(--text-secondary);
        }
        .main-content {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 40px;
            margin: 40px 0;
        }
        @media (max-width: 992px) {
            .main-content {
                grid-template-columns: 1fr;
            }
        }
        .article-content {
            background-color: var(--surface-dark);
            border-radius: 10px;
            padding: 40px;
            box-shadow: var(--shadow);
        }
        .article-header {
            margin-bottom: 30px;
            border-bottom: 2px solid var(--border-color);
            padding-bottom: 20px;
        }
        .article-header h1 {
            font-size: 2.5rem;
            margin-bottom: 15px;
            line-height: 1.2;
            color: var(--text-primary);
        }
        .article-meta {
            display: flex;
            gap: 20px;
            color: var(--text-secondary);
            font-size: 0.9rem;
        }
        .article-meta i {
            margin-right: 5px;
        }
        .sidebar {
            display: flex;
            flex-direction: column;
            gap: 25px;
        }
        .sidebar-widget {
            background-color: var(--surface-dark);
            border-radius: 10px;
            padding: 25px;
            box-shadow: var(--shadow);
        }
        .sidebar-widget h3 {
            margin-bottom: 15px;
            padding-bottom: 10px;
            border-bottom: 1px solid var(--border-color);
            color: var(--primary-accent);
        }
        .search-widget form {
            display: flex;
        }
        .search-widget input {
            flex: 1;
            padding: 12px 15px;
            background-color: var(--surface-light);
            border: 1px solid var(--border-color);
            border-right: none;
            border-radius: 5px 0 0 5px;
            color: var(--text-primary);
        }
        .search-widget button {
            background-color: var(--primary-accent);
            color: white;
            border: none;
            padding: 0 20px;
            border-radius: 0 5px 5px 0;
            cursor: pointer;
            transition: var(--transition);
        }
        .search-widget button:hover {
            background-color: #d1401d;
        }
        .content-section {
            margin-bottom: 40px;
        }
        h2 {
            font-size: 1.8rem;
            margin: 30px 0 15px;
            color: var(--secondary-accent);
            padding-bottom: 8px;
            border-bottom: 1px solid var(--border-color);
        }
        h3 {
            font-size: 1.4rem;
            margin: 25px 0 12px;
            color: var(--text-primary);
        }
        p {
            margin-bottom: 20px;
            text-align: justify;
        }
        .highlight {
            background-color: rgba(228, 77, 38, 0.1);
            border-left: 4px solid var(--primary-accent);
            padding: 20px;
            margin: 25px 0;
            border-radius: 0 5px 5px 0;
        }
        .price-table {
            width: 100%;
            border-collapse: collapse;
            margin: 25px 0;
            background-color: var(--surface-light);
            border-radius: 8px;
            overflow: hidden;
        }
        .price-table th, .price-table td {
            padding: 15px;
            text-align: left;
            border-bottom: 1px solid var(--border-color);
        }
        .price-table th {
            background-color: var(--primary-accent);
            color: white;
            font-weight: 600;
        }
        .price-table tr:last-child td {
            border-bottom: none;
        }
        .price-table tr:hover {
            background-color: rgba(74, 144, 226, 0.1);
        }
        .feature-img {
            margin: 30px 0;
            border-radius: 8px;
            overflow: hidden;
            box-shadow: var(--shadow);
        }
        .feature-img figcaption {
            padding: 10px;
            background-color: var(--surface-light);
            font-size: 0.9rem;
            color: var(--text-secondary);
            text-align: center;
        }
        .rating-section, .comments-section {
            margin-top: 50px;
            padding-top: 30px;
            border-top: 2px solid var(--border-color);
        }
        .rating-form, .comment-form {
            background-color: var(--surface-light);
            padding: 25px;
            border-radius: 8px;
            margin-top: 20px;
        }
        .rating-stars {
            display: flex;
            gap: 10px;
            margin: 15px 0;
            font-size: 1.8rem;
            color: var(--warning-color);
        }
        .rating-stars i {
            cursor: pointer;
            transition: var(--transition);
        }
        .rating-stars i:hover {
            transform: scale(1.2);
        }
        .form-group {
            margin-bottom: 20px;
        }
        .form-group label {
            display: block;
            margin-bottom: 8px;
            font-weight: 600;
        }
        .form-group input, .form-group textarea, .form-group select {
            width: 100%;
            padding: 12px 15px;
            background-color: var(--surface-dark);
            border: 1px solid var(--border-color);
            border-radius: 5px;
            color: var(--text-primary);
            font-family: var(--font-main);
        }
        .form-group textarea {
            min-height: 150px;
            resize: vertical;
        }
        .submit-btn {
            background-color: var(--secondary-accent);
            color: white;
            border: none;
            padding: 14px 30px;
            border-radius: 5px;
            cursor: pointer;
            font-weight: 600;
            transition: var(--transition);
        }
        .submit-btn:hover {
            background-color: #3a7bc8;
        }
        .footer-links {
            background-color: var(--surface-light);
            padding: 40px 0;
            margin-top: 60px;
        }
        .web-link-container {
            display: grid;
            grid-template-columns: repeat(5, 1fr);
            gap: 20px;
        }
        @media (max-width: 768px) {
            .web-link-container {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        .web-link {
            background-color: var(--surface-dark);
            padding: 15px;
            border-radius: 5px;
            transition: var(--transition);
        }
        .web-link:hover {
            transform: translateY(-5px);
            box-shadow: var(--shadow);
        }
        .web-link a {
            color: var(--text-primary);
            display: block;
            font-weight: 600;
        }
        .web-link a:hover {
            color: var(--primary-accent);
        }
        .site-footer {
            background-color: var(--surface-dark);
            padding: 40px 0 20px;
            text-align: center;
            border-top: 1px solid var(--border-color);
        }
        .copyright {
            margin-top: 30px;
            padding-top: 20px;
            border-top: 1px solid var(--border-color);
            color: var(--text-secondary);
            font-size: 0.9rem;
        }
        @media (max-width: 768px) {
            .mobile-toggle {
                display: block;
            }
            .nav-desktop {
                display: none;
            }
            .article-header h1 {
                font-size: 2rem;
            }
            .article-content {
                padding: 25px;
            }
            .main-content {
                gap: 25px;
            }
        }