* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
        }
        :root {
            --primary: #1a237e;
            --secondary: #ff9800;
            --accent: #4caf50;
            --light: #f5f7fa;
            --dark: #121212;
            --gray: #6c757d;
            --shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
            --transition: all 0.3s ease;
        }
        body {
            background-color: #fff;
            color: #333;
            line-height: 1.6;
            overflow-x: hidden;
        }
        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        header {
            background-color: var(--primary);
            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 a {
            font-size: 2.2rem;
            font-weight: 900;
            color: white;
            text-decoration: none;
            letter-spacing: 1px;
            background: linear-gradient(90deg, #fff 60%, var(--secondary) 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .search-box {
            display: flex;
            flex: 0 1 400px;
        }
        .search-box input {
            padding: 12px 15px;
            border: none;
            border-radius: 4px 0 0 4px;
            width: 100%;
            font-size: 1rem;
        }
        .search-box button {
            background-color: var(--secondary);
            color: white;
            border: none;
            padding: 0 20px;
            border-radius: 0 4px 4px 0;
            cursor: pointer;
            font-weight: bold;
            transition: var(--transition);
        }
        .search-box button:hover {
            background-color: #e68900;
        }
        .menu-toggle {
            display: none;
            font-size: 1.8rem;
            cursor: pointer;
        }
        nav ul {
            display: flex;
            list-style: none;
            background-color: #0d1b48;
            padding-left: 0;
        }
        nav ul li {
            position: relative;
        }
        nav ul li a {
            color: white;
            text-decoration: none;
            padding: 18px 22px;
            display: block;
            font-weight: 500;
            transition: var(--transition);
        }
        nav ul li a:hover,
        nav ul li a.active {
            background-color: var(--secondary);
            color: var(--dark);
        }
        .breadcrumb {
            padding: 15px 0;
            background-color: var(--light);
            font-size: 0.9rem;
            border-bottom: 1px solid #e0e0e0;
        }
        .breadcrumb a {
            color: var(--primary);
            text-decoration: none;
        }
        .breadcrumb a:hover {
            text-decoration: underline;
        }
        .breadcrumb span {
            color: var(--gray);
            margin: 0 5px;
        }
        main {
            padding: 30px 0;
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 40px;
        }
        article {
            background: white;
            border-radius: 8px;
            overflow: hidden;
        }
        .article-header {
            margin-bottom: 30px;
        }
        .article-header h1 {
            font-size: 2.8rem;
            color: var(--primary);
            margin-bottom: 15px;
            line-height: 1.2;
        }
        .meta {
            color: var(--gray);
            font-size: 0.95rem;
            display: flex;
            gap: 20px;
            margin-bottom: 20px;
        }
        .hero-img {
            width: 100%;
            height: 400px;
            object-fit: cover;
            border-radius: 8px;
            margin-bottom: 30px;
            transition: transform 0.5s ease;
        }
        .hero-img:hover {
            transform: scale(1.01);
        }
        .content-section {
            margin-bottom: 40px;
        }
        h2 {
            font-size: 2rem;
            color: var(--primary);
            border-left: 5px solid var(--secondary);
            padding-left: 15px;
            margin: 30px 0 20px;
        }
        h3 {
            font-size: 1.5rem;
            color: #2c3e50;
            margin: 25px 0 15px;
        }
        p {
            margin-bottom: 20px;
            font-size: 1.1rem;
            text-align: justify;
        }
        .highlight {
            background-color: #fff9c4;
            padding: 25px;
            border-radius: 8px;
            border-left: 4px solid var(--accent);
            margin: 25px 0;
        }
        .download-box {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
            gap: 20px;
            margin: 30px 0;
        }
        .app-card {
            background: var(--light);
            border-radius: 10px;
            padding: 20px;
            box-shadow: var(--shadow);
            transition: var(--transition);
            text-align: center;
            border: 2px solid transparent;
        }
        .app-card:hover {
            transform: translateY(-10px);
            border-color: var(--secondary);
        }
        .app-card i {
            font-size: 3rem;
            color: var(--primary);
            margin-bottom: 15px;
        }
        .btn-download {
            display: inline-block;
            background: linear-gradient(135deg, var(--primary), #283593);
            color: white;
            padding: 12px 25px;
            border-radius: 50px;
            text-decoration: none;
            font-weight: bold;
            margin-top: 15px;
            transition: var(--transition);
        }
        .btn-download:hover {
            background: linear-gradient(135deg, #283593, var(--primary));
            box-shadow: 0 6px 15px rgba(26, 35, 126, 0.3);
        }
        .data-table {
            width: 100%;
            border-collapse: collapse;
            margin: 25px 0;
            box-shadow: var(--shadow);
        }
        .data-table th,
        .data-table td {
            border: 1px solid #ddd;
            padding: 15px;
            text-align: left;
        }
        .data-table th {
            background-color: var(--primary);
            color: white;
        }
        .data-table tr:nth-child(even) {
            background-color: #f9f9f9;
        }
        .data-table tr:hover {
            background-color: #e3f2fd;
        }
        aside {
            background: var(--light);
            border-radius: 8px;
            padding: 25px;
            align-self: start;
            position: sticky;
            top: 120px;
        }
        .sidebar-widget {
            margin-bottom: 30px;
        }
        .sidebar-widget h3 {
            font-size: 1.3rem;
            color: var(--primary);
            padding-bottom: 10px;
            border-bottom: 2px solid var(--secondary);
            margin-bottom: 20px;
        }
        .rating-widget {
            text-align: center;
        }
        .stars {
            font-size: 2rem;
            color: #ffc107;
            margin: 15px 0;
        }
        .stars i {
            cursor: pointer;
            transition: var(--transition);
        }
        .stars i:hover {
            transform: scale(1.2);
        }
        .comment-section {
            background: white;
            border-radius: 8px;
            padding: 30px;
            margin-top: 40px;
            box-shadow: var(--shadow);
        }
        .comment-form input,
        .comment-form textarea {
            width: 100%;
            padding: 15px;
            margin-bottom: 15px;
            border: 1px solid #ccc;
            border-radius: 4px;
            font-size: 1rem;
        }
        .comment-form textarea {
            min-height: 150px;
            resize: vertical;
        }
        .btn-submit {
            background-color: var(--accent);
            color: white;
            border: none;
            padding: 15px 30px;
            border-radius: 4px;
            cursor: pointer;
            font-weight: bold;
            font-size: 1rem;
            transition: var(--transition);
        }
        .btn-submit:hover {
            background-color: #3d8b40;
        }
        .footer-links {
            display: grid;
            grid-template-columns: repeat(5, 1fr);
            gap: 15px;
            padding: 40px 0;
            border-top: 1px solid #eee;
            border-bottom: 1px solid #eee;
            margin-top: 50px;
        }
        .web-link a {
            color: var(--primary);
            text-decoration: none;
            font-weight: 500;
            transition: var(--transition);
            display: block;
            padding: 8px 0;
        }
        .web-link a:hover {
            color: var(--secondary);
            padding-left: 5px;
        }
        footer {
            background-color: var(--dark);
            color: #bbb;
            padding: 40px 0 20px;
            text-align: center;
        }
        .footer-bottom {
            margin-top: 30px;
            padding-top: 20px;
            border-top: 1px solid #444;
            font-size: 0.9rem;
        }
        @media (max-width: 992px) {
            main {
                grid-template-columns: 1fr;
            }
            aside {
                position: static;
            }
            .footer-links {
                grid-template-columns: repeat(3, 1fr);
            }
            .article-header h1 {
                font-size: 2.2rem;
            }
        }
        @media (max-width: 768px) {
            .header-top {
                flex-wrap: wrap;
            }
            .search-box {
                order: 3;
                flex: 1 0 100%;
                margin-top: 15px;
            }
            .menu-toggle {
                display: block;
            }
            nav ul {
                flex-direction: column;
                display: none;
            }
            nav ul.active {
                display: flex;
            }
            nav ul li a {
                padding: 15px;
            }
            .footer-links {
                grid-template-columns: repeat(2, 1fr);
            }
            .hero-img {
                height: 250px;
            }
        }
        @media (max-width: 480px) {
            .footer-links {
                grid-template-columns: 1fr;
            }
            .download-box {
                grid-template-columns: 1fr;
            }
        }
        @keyframes fadeIn {
            from { opacity: 0; transform: translateY(20px); }
            to { opacity: 1; transform: translateY(0); }
        }
        .content-section, .sidebar-widget, .comment-section {
            animation: fadeIn 0.8s ease-out;
        }