* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        :root {
            --primary-color: #1a237e;
            --secondary-color: #ff4081;
            --accent-color: #00bcd4;
            --text-dark: #212121;
            --text-light: #757575;
            --background-light: #f5f5f5;
            --border-color: #e0e0e0;
            --success-color: #4caf50;
            --shadow: 0 4px 12px rgba(0,0,0,0.08);
        }
        html {
            scroll-behavior: smooth;
            font-size: 16px;
        }
        body {
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
            line-height: 1.7;
            color: var(--text-dark);
            background-color: #fff;
            max-width: 1440px;
            margin: 0 auto;
            overflow-x: hidden;
        }
        h1, h2, h3, h4 {
            color: var(--primary-color);
            margin-bottom: 1rem;
            line-height: 1.3;
            font-weight: 700;
        }
        h1 {
            font-size: 2.5rem;
            margin-top: 1.5rem;
        }
        h2 {
            font-size: 2rem;
            border-left: 4px solid var(--secondary-color);
            padding-left: 1rem;
            margin-top: 2.5rem;
        }
        h3 {
            font-size: 1.5rem;
            margin-top: 2rem;
        }
        p {
            margin-bottom: 1.5rem;
            text-align: justify;
        }
        strong {
            color: var(--secondary-color);
            font-weight: 700;
        }
        em {
            color: var(--accent-color);
            font-style: italic;
        }
        .container {
            width: 100%;
            padding: 0 1.5rem;
            margin: 0 auto;
        }
        header {
            background: linear-gradient(135deg, var(--primary-color), #283593);
            color: white;
            padding: 1rem 0;
            box-shadow: var(--shadow);
            position: sticky;
            top: 0;
            z-index: 1000;
        }
        .header-container {
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        .logo a {
            font-size: 1.8rem;
            font-weight: 800;
            color: white;
            text-decoration: none;
            display: flex;
            align-items: center;
            gap: 0.5rem;
        }
        .logo i {
            color: var(--secondary-color);
        }
        nav ul {
            display: flex;
            list-style: none;
            gap: 2rem;
        }
        nav a {
            color: white;
            text-decoration: none;
            font-weight: 600;
            padding: 0.5rem 1rem;
            border-radius: 4px;
            transition: all 0.3s ease;
        }
        nav a:hover {
            background-color: rgba(255, 255, 255, 0.15);
            transform: translateY(-2px);
        }
        .hamburger {
            display: none;
            font-size: 1.8rem;
            cursor: pointer;
            color: white;
        }
        .breadcrumb {
            background-color: var(--background-light);
            padding: 0.8rem 1.5rem;
            margin-bottom: 2rem;
            border-radius: 0 0 8px 8px;
            box-shadow: 0 2px 4px rgba(0,0,0,0.05);
        }
        .breadcrumb ul {
            display: flex;
            list-style: none;
            flex-wrap: wrap;
            gap: 0.5rem;
        }
        .breadcrumb li {
            display: flex;
            align-items: center;
            gap: 0.5rem;
        }
        .breadcrumb a {
            color: var(--text-light);
            text-decoration: none;
        }
        .breadcrumb a:hover {
            color: var(--primary-color);
            text-decoration: underline;
        }
        .breadcrumb i {
            font-size: 0.8rem;
        }
        main {
            display: grid;
            grid-template-columns: 3fr 1fr;
            gap: 3rem;
            padding: 2rem 0;
        }
        article {
            background: white;
            padding: 2rem;
            border-radius: 12px;
            box-shadow: var(--shadow);
        }
        aside {
            display: flex;
            flex-direction: column;
            gap: 2rem;
        }
        .sidebar-widget {
            background: white;
            padding: 1.5rem;
            border-radius: 12px;
            box-shadow: var(--shadow);
        }
        .sidebar-widget h3 {
            font-size: 1.3rem;
            margin-bottom: 1.2rem;
            color: var(--primary-color);
            border-bottom: 2px solid var(--border-color);
            padding-bottom: 0.5rem;
        }
        form {
            display: flex;
            flex-direction: column;
            gap: 1rem;
        }
        input, textarea, select {
            padding: 0.8rem 1rem;
            border: 1px solid var(--border-color);
            border-radius: 8px;
            font-family: inherit;
            font-size: 1rem;
            transition: border 0.3s ease;
        }
        input:focus, textarea:focus, select:focus {
            outline: none;
            border-color: var(--accent-color);
            box-shadow: 0 0 0 3px rgba(0, 188, 212, 0.1);
        }
        button, .btn {
            background: linear-gradient(to right, var(--primary-color), #3949ab);
            color: white;
            border: none;
            padding: 0.9rem 1.8rem;
            border-radius: 8px;
            font-weight: 600;
            cursor: pointer;
            transition: all 0.3s ease;
            text-decoration: none;
            text-align: center;
            display: inline-block;
        }
        button:hover, .btn:hover {
            transform: translateY(-3px);
            box-shadow: 0 6px 12px rgba(26, 35, 126, 0.2);
        }
        .btn-secondary {
            background: linear-gradient(to right, var(--secondary-color), #f50057);
        }
        .rating-widget {
            text-align: center;
        }
        .stars {
            display: flex;
            justify-content: center;
            gap: 0.3rem;
            margin: 1rem 0;
        }
        .star {
            font-size: 1.8rem;
            color: #ddd;
            cursor: pointer;
            transition: color 0.2s;
        }
        .star:hover, .star.active {
            color: #ffc107;
        }
        .comment {
            border-bottom: 1px solid var(--border-color);
            padding: 1.2rem 0;
        }
        .comment:last-child {
            border-bottom: none;
        }
        .comment-header {
            display: flex;
            justify-content: space-between;
            margin-bottom: 0.5rem;
        }
        .comment-author {
            font-weight: 600;
            color: var(--primary-color);
        }
        .comment-date {
            color: var(--text-light);
            font-size: 0.9rem;
        }
        .featured-image {
            width: 100%;
            height: auto;
            border-radius: 12px;
            margin: 2rem 0;
            box-shadow: 0 8px 16px rgba(0,0,0,0.1);
            transition: transform 0.5s ease;
        }
        .featured-image:hover {
            transform: scale(1.01);
        }
        .highlight-box {
            background: linear-gradient(135deg, #e3f2fd, #f3e5f5);
            border-left: 5px solid var(--accent-color);
            padding: 1.5rem;
            margin: 2rem 0;
            border-radius: 0 12px 12px 0;
        }
        .tip {
            background-color: #e8f5e9;
            border-left: 5px solid var(--success-color);
            padding: 1.2rem;
            margin: 1.5rem 0;
            border-radius: 0 8px 8px 0;
        }
        .tip i {
            color: var(--success-color);
            margin-right: 0.5rem;
        }
        .web-links {
            display: grid;
            grid-template-columns: repeat(5, 1fr);
            gap: 1rem;
            margin: 3rem 0;
            padding: 2rem;
            background: var(--background-light);
            border-radius: 12px;
        }
        .web-link {
            background: white;
            padding: 1rem;
            border-radius: 8px;
            text-align: center;
            box-shadow: 0 2px 6px rgba(0,0,0,0.05);
            transition: all 0.3s ease;
        }
        .web-link:hover {
            transform: translateY(-5px);
            box-shadow: 0 6px 12px rgba(0,0,0,0.1);
        }
        .web-link a {
            color: var(--primary-color);
            text-decoration: none;
            font-weight: 600;
            display: block;
        }
        .web-link a:hover {
            color: var(--secondary-color);
            text-decoration: underline;
        }
        footer {
            background: linear-gradient(135deg, var(--primary-color), #0d1b4c);
            color: white;
            padding: 3rem 0 1.5rem;
            margin-top: 3rem;
        }
        .footer-container {
            display: flex;
            flex-direction: column;
            align-items: center;
            text-align: center;
        }
        .copyright {
            margin-top: 2rem;
            padding-top: 1.5rem;
            border-top: 1px solid rgba(255,255,255,0.1);
            width: 100%;
            color: rgba(255,255,255,0.7);
            font-size: 0.9rem;
        }
        @media (max-width: 1024px) {
            main {
                grid-template-columns: 2fr 1fr;
                gap: 2rem;
            }
            .web-links {
                grid-template-columns: repeat(3, 1fr);
            }
        }
        @media (max-width: 768px) {
            .hamburger {
                display: block;
            }
            nav ul {
                display: none;
                position: absolute;
                top: 100%;
                left: 0;
                width: 100%;
                background: var(--primary-color);
                flex-direction: column;
                padding: 1rem;
                box-shadow: 0 10px 20px rgba(0,0,0,0.1);
            }
            nav ul.active {
                display: flex;
            }
            main {
                grid-template-columns: 1fr;
            }
            .header-container {
                flex-wrap: wrap;
            }
            .web-links {
                grid-template-columns: repeat(2, 1fr);
            }
            h1 {
                font-size: 2rem;
            }
            h2 {
                font-size: 1.7rem;
            }
        }
        @media (max-width: 480px) {
            .container {
                padding: 0 1rem;
            }
            .web-links {
                grid-template-columns: 1fr;
            }
            article, .sidebar-widget {
                padding: 1.5rem;
            }
            h1 {
                font-size: 1.8rem;
            }
            h2 {
                font-size: 1.5rem;
            }
        }
        @keyframes fadeIn {
            from { opacity: 0; transform: translateY(20px); }
            to { opacity: 1; transform: translateY(0); }
        }
        article, .sidebar-widget {
            animation: fadeIn 0.8s ease-out;
        }
        .text-center { text-align: center; }
        .mb-1 { margin-bottom: 1rem; }
        .mb-2 { margin-bottom: 2rem; }
        .mt-1 { margin-top: 1rem; }
        .mt-2 { margin-top: 2rem; }
        .p-1 { padding: 1rem; }
        .p-2 { padding: 2rem; }