* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: 'Segoe UI', 'Arial', 'Nirmala UI', sans-serif;
        }
        :root {
            --primary-color: #FF9933;
            --secondary-color: #138808;
            --accent-color: #000080;
            --text-dark: #333;
            --text-light: #666;
            --bg-light: #f8f9fa;
            --border-color: #ddd;
            --shadow: 0 4px 12px rgba(0,0,0,0.08);
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            color: var(--text-dark);
            background-color: #fff;
            line-height: 1.7;
            font-size: 18px;
        }
        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        header {
            background: linear-gradient(135deg, var(--accent-color), #1a237e);
            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: 2.2rem;
            font-weight: 800;
            color: white;
            text-decoration: none;
            display: flex;
            align-items: center;
            gap: 10px;
            letter-spacing: 1px;
        }
        .logo span {
            color: var(--primary-color);
        }
        .desktop-nav ul {
            display: flex;
            list-style: none;
            gap: 2rem;
        }
        .desktop-nav a {
            color: white;
            text-decoration: none;
            font-weight: 600;
            font-size: 1.1rem;
            padding: 0.5rem 1rem;
            border-radius: 4px;
            transition: all 0.3s ease;
        }
        .desktop-nav a:hover {
            background-color: rgba(255,255,255,0.15);
            transform: translateY(-2px);
        }
        .hamburger {
            display: none;
            font-size: 1.8rem;
            background: none;
            border: none;
            color: white;
            cursor: pointer;
        }
        .mobile-nav {
            display: none;
            position: absolute;
            top: 100%;
            left: 0;
            width: 100%;
            background-color: var(--accent-color);
            flex-direction: column;
            padding: 1rem;
            box-shadow: var(--shadow);
        }
        .mobile-nav.active {
            display: flex;
        }
        .mobile-nav ul {
            list-style: none;
        }
        .mobile-nav li {
            margin: 0.8rem 0;
        }
        .mobile-nav a {
            color: white;
            text-decoration: none;
            font-size: 1.2rem;
            display: block;
            padding: 0.8rem;
            border-radius: 4px;
        }
        .mobile-nav a:hover {
            background-color: rgba(255,255,255,0.1);
        }
        .breadcrumb {
            padding: 1rem 0;
            background-color: var(--bg-light);
            border-bottom: 1px solid var(--border-color);
            font-size: 0.95rem;
        }
        .breadcrumb ol {
            display: flex;
            list-style: none;
            flex-wrap: wrap;
            gap: 0.5rem;
        }
        .breadcrumb li:not(:last-child)::after {
            content: "›";
            margin-left: 0.5rem;
            color: var(--text-light);
        }
        .breadcrumb a {
            color: var(--accent-color);
            text-decoration: none;
        }
        .breadcrumb a:hover {
            text-decoration: underline;
        }
        main {
            padding: 2rem 0;
        }
        .content-wrapper {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 3rem;
        }
        @media (max-width: 992px) {
            .content-wrapper {
                grid-template-columns: 1fr;
            }
        }
        article {
            background-color: white;
            padding: 2rem;
            border-radius: 12px;
            box-shadow: var(--shadow);
        }
        h1 {
            color: var(--accent-color);
            font-size: 2.8rem;
            margin-bottom: 1.5rem;
            line-height: 1.2;
            border-bottom: 4px solid var(--primary-color);
            padding-bottom: 0.5rem;
        }
        h2 {
            color: var(--secondary-color);
            font-size: 2rem;
            margin: 2.5rem 0 1.2rem;
            padding-left: 0.5rem;
            border-left: 5px solid var(--secondary-color);
        }
        h3 {
            color: var(--primary-color);
            font-size: 1.6rem;
            margin: 2rem 0 1rem;
        }
        p {
            margin-bottom: 1.5rem;
            text-align: justify;
        }
        .intro {
            font-size: 1.3rem;
            color: var(--text-light);
            background-color: #f0f8ff;
            padding: 1.5rem;
            border-radius: 8px;
            margin-bottom: 2rem;
            border-left: 5px solid var(--primary-color);
        }
        .highlight {
            background-color: #fffde7;
            padding: 1.5rem;
            border-radius: 8px;
            margin: 2rem 0;
            border: 2px dashed var(--primary-color);
        }
        .highlight strong {
            color: var(--accent-color);
        }
        .feature-img {
            width: 100%;
            max-width: 800px;
            height: auto;
            border-radius: 10px;
            margin: 2rem auto;
            display: block;
            box-shadow: 0 8px 20px rgba(0,0,0,0.15);
            transition: transform 0.5s ease;
        }
        .feature-img:hover {
            transform: scale(1.02);
        }
        .img-caption {
            text-align: center;
            font-style: italic;
            color: var(--text-light);
            margin-top: 0.5rem;
            font-size: 0.95rem;
        }
        .interactive-section {
            background: linear-gradient(to right, #f8f9fa, #e9ecef);
            padding: 2rem;
            border-radius: 10px;
            margin: 3rem 0;
        }
        .form-group {
            margin-bottom: 1.5rem;
        }
        .form-group label {
            display: block;
            margin-bottom: 0.5rem;
            font-weight: 600;
            color: var(--accent-color);
        }
        .form-control {
            width: 100%;
            padding: 0.8rem 1rem;
            border: 2px solid var(--border-color);
            border-radius: 6px;
            font-size: 1rem;
            transition: border 0.3s;
        }
        .form-control:focus {
            outline: none;
            border-color: var(--primary-color);
        }
        .btn {
            background-color: var(--primary-color);
            color: white;
            border: none;
            padding: 0.9rem 2rem;
            font-size: 1.1rem;
            border-radius: 6px;
            cursor: pointer;
            font-weight: 600;
            transition: all 0.3s ease;
        }
        .btn:hover {
            background-color: #e68900;
            transform: translateY(-3px);
            box-shadow: 0 6px 12px rgba(255, 153, 51, 0.3);
        }
        .btn-secondary {
            background-color: var(--secondary-color);
        }
        .btn-secondary:hover {
            background-color: #0c6c07;
        }
        .rating {
            display: flex;
            align-items: center;
            gap: 1rem;
            margin: 1.5rem 0;
        }
        .stars {
            display: flex;
            gap: 0.3rem;
        }
        .star {
            color: #ddd;
            font-size: 1.8rem;
            cursor: pointer;
            transition: color 0.2s;
        }
        .star:hover,
        .star.active {
            color: #ffc107;
        }
        aside {
            background-color: white;
            padding: 1.5rem;
            border-radius: 12px;
            box-shadow: var(--shadow);
            align-self: start;
            position: sticky;
            top: 120px;
        }
        .sidebar-widget {
            margin-bottom: 2.5rem;
        }
        .sidebar-widget h3 {
            font-size: 1.4rem;
            color: var(--accent-color);
            margin-bottom: 1rem;
            padding-bottom: 0.5rem;
            border-bottom: 2px solid var(--border-color);
        }
        .download-box {
            background: linear-gradient(135deg, var(--secondary-color), #0a6e04);
            color: white;
            padding: 1.5rem;
            border-radius: 10px;
            text-align: center;
        }
        .download-box .btn {
            background-color: white;
            color: var(--secondary-color);
            margin-top: 1rem;
        }
        .download-box .btn:hover {
            background-color: #f0f0f0;
        }
        .footer-links {
            background-color: var(--bg-light);
            padding: 3rem 0;
            border-top: 1px solid var(--border-color);
            border-bottom: 1px solid var(--border-color);
        }
        .links-container {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
            gap: 1.5rem;
        }
        .web-link {
            background-color: white;
            padding: 1.2rem;
            border-radius: 8px;
            box-shadow: 0 3px 8px rgba(0,0,0,0.05);
            transition: transform 0.3s, box-shadow 0.3s;
        }
        .web-link:hover {
            transform: translateY(-5px);
            box-shadow: 0 8px 15px rgba(0,0,0,0.1);
        }
        .web-link a {
            color: var(--accent-color);
            text-decoration: none;
            font-weight: 600;
            display: block;
            font-size: 1.1rem;
        }
        .web-link a:hover {
            color: var(--primary-color);
            text-decoration: underline;
        }
        footer {
            background-color: var(--accent-color);
            color: white;
            padding: 2.5rem 0 1.5rem;
            text-align: center;
        }
        .footer-container {
            display: flex;
            flex-direction: column;
            align-items: center;
            gap: 1.5rem;
        }
        .copyright {
            font-size: 0.95rem;
            opacity: 0.9;
            border-top: 1px solid rgba(255,255,255,0.2);
            padding-top: 1.5rem;
            width: 100%;
        }
        @media (max-width: 768px) {
            .desktop-nav {
                display: none;
            }
            .hamburger {
                display: block;
            }
            h1 {
                font-size: 2.2rem;
            }
            h2 {
                font-size: 1.7rem;
            }
            .content-wrapper {
                gap: 2rem;
            }
            article {
                padding: 1.5rem;
            }
            .interactive-section {
                padding: 1.5rem;
            }
            .links-container {
                grid-template-columns: 1fr;
            }
        }
        @media (max-width: 480px) {
            body {
                font-size: 16px;
            }
            .logo a {
                font-size: 1.8rem;
            }
            .btn {
                padding: 0.8rem 1.5rem;
            }
        }
        @media print {
            .no-print {
                display: none;
            }
            .interactive-section {
                break-inside: avoid;
            }
        }