:root {
            --primary: #2A5CAA;
            --secondary: #FF9E1B;
            --dark: #1a1a2e;
            --light: #f8f9fa;
            --gray: #6c757d;
            --success: #28a745;
            --shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
            --radius: 8px;
        }
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
        }
        body {
            background-color: #f0f2f5;
            color: #333;
            line-height: 1.7;
            overflow-x: hidden;
        }
        a {
            text-decoration: none;
            color: var(--primary);
            transition: color 0.3s ease;
        }
        a:hover {
            color: var(--secondary);
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        .btn {
            display: inline-block;
            padding: 12px 28px;
            background: var(--primary);
            color: white;
            border: none;
            border-radius: var(--radius);
            cursor: pointer;
            font-weight: 600;
            transition: all 0.3s ease;
            text-align: center;
        }
        .btn:hover {
            background: var(--secondary);
            color: var(--dark);
            transform: translateY(-2px);
            box-shadow: var(--shadow);
        }
        header {
            background: 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 a {
            font-size: 2rem;
            font-weight: 800;
            color: var(--primary);
            letter-spacing: -0.5px;
        }
        .logo span {
            color: var(--secondary);
        }
        nav ul {
            display: flex;
            list-style: none;
        }
        nav ul li {
            margin-left: 30px;
        }
        nav ul li a {
            font-weight: 600;
            font-size: 1.05rem;
        }
        .hamburger {
            display: none;
            font-size: 1.8rem;
            cursor: pointer;
            color: var(--primary);
        }
        .breadcrumb {
            background: #e9ecef;
            padding: 12px 0;
            font-size: 0.9rem;
            margin-bottom: 30px;
        }
        .breadcrumb a {
            color: var(--gray);
        }
        .breadcrumb a:hover {
            color: var(--primary);
        }
        .breadcrumb .separator {
            margin: 0 10px;
            color: #aaa;
        }
        main {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 40px;
            padding: 30px 0;
        }
        article {
            background: white;
            padding: 40px;
            border-radius: var(--radius);
            box-shadow: var(--shadow);
        }
        article h1 {
            font-size: 2.5rem;
            color: var(--dark);
            margin-bottom: 25px;
            line-height: 1.3;
        }
        article h2 {
            font-size: 1.8rem;
            color: var(--primary);
            margin: 40px 0 20px;
            padding-bottom: 10px;
            border-bottom: 2px solid var(--secondary);
        }
        article h3 {
            font-size: 1.4rem;
            color: var(--dark);
            margin: 30px 0 15px;
        }
        article p {
            margin-bottom: 20px;
            font-size: 1.1rem;
            text-align: justify;
        }
        article strong {
            color: var(--primary);
            font-weight: 700;
        }
        .featured-img {
            width: 100%;
            border-radius: var(--radius);
            margin: 30px 0;
            box-shadow: 0 8px 20px rgba(0,0,0,0.1);
        }
        .highlight-box {
            background: linear-gradient(135deg, #f5f7fa 0%, #e4edf5 100%);
            border-left: 5px solid var(--secondary);
            padding: 25px;
            margin: 30px 0;
            border-radius: 0 var(--radius) var(--radius) 0;
        }
        .interactive-box {
            background: white;
            border: 2px dashed var(--primary);
            border-radius: var(--radius);
            padding: 25px;
            margin: 40px 0;
            text-align: center;
        }
        .interactive-box h3 {
            color: var(--primary);
            margin-bottom: 20px;
        }
        .interactive-box form {
            display: flex;
            flex-direction: column;
            gap: 15px;
            max-width: 500px;
            margin: 0 auto;
        }
        .interactive-box input,
        .interactive-box textarea,
        .interactive-box select {
            padding: 12px 15px;
            border: 1px solid #ddd;
            border-radius: var(--radius);
            font-size: 1rem;
        }
        .interactive-box textarea {
            min-height: 120px;
            resize: vertical;
        }
        .rating {
            display: flex;
            justify-content: center;
            gap: 10px;
            margin: 20px 0;
        }
        .rating i {
            color: #ddd;
            font-size: 1.8rem;
            cursor: pointer;
            transition: color 0.2s;
        }
        .rating i:hover,
        .rating i.active {
            color: var(--secondary);
        }
        aside {
            position: sticky;
            top: 120px;
            align-self: start;
        }
        .sidebar-widget {
            background: white;
            padding: 25px;
            border-radius: var(--radius);
            box-shadow: var(--shadow);
            margin-bottom: 25px;
        }
        .sidebar-widget h3 {
            color: var(--primary);
            margin-bottom: 20px;
            font-size: 1.3rem;
        }
        .search-box form {
            display: flex;
        }
        .search-box input {
            flex: 1;
            padding: 12px 15px;
            border: 1px solid #ddd;
            border-radius: var(--radius) 0 0 var(--radius);
            border-right: none;
        }
        .search-box button {
            background: var(--primary);
            color: white;
            border: none;
            border-radius: 0 var(--radius) var(--radius) 0;
            padding: 0 20px;
            cursor: pointer;
        }
        .price-table {
            width: 100%;
            border-collapse: collapse;
        }
        .price-table th,
        .price-table td {
            padding: 12px 15px;
            text-align: left;
            border-bottom: 1px solid #eee;
        }
        .price-table th {
            background: #f8f9fa;
            color: var(--primary);
            font-weight: 700;
        }
        .price-table tr:hover {
            background: #f5f9ff;
        }
        .footer-links {
            background: var(--dark);
            padding: 40px 0 30px;
            margin-top: 50px;
        }
        .web-links-container {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
            gap: 20px;
            margin-bottom: 30px;
        }
        .web-link {
            background: rgba(255,255,255,0.05);
            padding: 15px;
            border-radius: var(--radius);
            transition: background 0.3s;
        }
        .web-link:hover {
            background: rgba(255,255,255,0.1);
        }
        .web-link a {
            color: #ddd;
            font-size: 1rem;
        }
        .web-link a:hover {
            color: var(--secondary);
        }
        footer {
            background: #0f1521;
            color: #aaa;
            padding: 30px 0;
            text-align: center;
        }
        footer p {
            margin-bottom: 10px;
            font-size: 0.95rem;
        }
        .social-links {
            display: flex;
            justify-content: center;
            gap: 20px;
            margin: 20px 0;
        }
        .social-links a {
            color: #aaa;
            font-size: 1.3rem;
            transition: color 0.3s;
        }
        .social-links a:hover {
            color: var(--secondary);
        }
        @media (max-width: 992px) {
            main {
                grid-template-columns: 1fr;
                gap: 30px;
            }
            article {
                padding: 30px;
            }
            article h1 {
                font-size: 2.2rem;
            }
        }
        @media (max-width: 768px) {
            .header-top {
                flex-wrap: wrap;
            }
            nav {
                width: 100%;
                order: 3;
                margin-top: 20px;
                display: none;
            }
            nav.active {
                display: block;
            }
            nav ul {
                flex-direction: column;
                gap: 0;
            }
            nav ul li {
                margin: 0;
                border-bottom: 1px solid #eee;
            }
            nav ul li a {
                display: block;
                padding: 15px;
            }
            .hamburger {
                display: block;
            }
            article {
                padding: 25px 20px;
            }
            article h1 {
                font-size: 1.9rem;
            }
            article h2 {
                font-size: 1.6rem;
            }
        }