* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        body {
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
            line-height: 1.6;
            color: #333;
            background-color: #f8f9fa;
            overflow-x: hidden;
        }
        a {
            text-decoration: none;
            color: inherit;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        .header {
            background: linear-gradient(135deg, #1a237e, #4a148c);
            color: white;
            padding: 1rem 2rem;
            box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
            position: sticky;
            top: 0;
            z-index: 1000;
        }
        .header-container {
            display: flex;
            justify-content: space-between;
            align-items: center;
            max-width: 1200px;
            margin: 0 auto;
        }
        .logo a {
            font-size: 1.8rem;
            font-weight: bold;
            display: flex;
            align-items: center;
            gap: 0.5rem;
        }
        .logo i {
            color: #ff9800;
        }
        .nav-desktop {
            display: flex;
            gap: 2rem;
        }
        .nav-desktop a {
            padding: 0.5rem 1rem;
            border-radius: 4px;
            transition: background 0.3s;
        }
        .nav-desktop a:hover {
            background: rgba(255, 255, 255, 0.2);
        }
        .hamburger {
            display: none;
            font-size: 1.5rem;
            cursor: pointer;
        }
        .nav-mobile {
            display: none;
            flex-direction: column;
            background: #1a237e;
            position: absolute;
            top: 100%;
            left: 0;
            width: 100%;
            padding: 1rem;
            box-shadow: 0 4px 8px rgba(0, 0, 0, 0.2);
        }
        .nav-mobile.active {
            display: flex;
        }
        .nav-mobile a {
            padding: 0.8rem;
            border-bottom: 1px solid rgba(255, 255, 255, 0.1);
        }
        .nav-mobile a:hover {
            background: rgba(255, 255, 255, 0.1);
        }
        .breadcrumb {
            background: #e3f2fd;
            padding: 0.8rem 2rem;
            font-size: 0.9rem;
        }
        .breadcrumb a {
            color: #1a237e;
        }
        .breadcrumb a:hover {
            text-decoration: underline;
        }
        .container {
            max-width: 1200px;
            margin: 2rem auto;
            padding: 0 2rem;
            display: grid;
            grid-template-columns: 1fr;
            gap: 2rem;
        }
        article {
            background: white;
            padding: 2rem;
            border-radius: 12px;
            box-shadow: 0 6px 20px rgba(0, 0, 0, 0.05);
        }
        h1 {
            font-size: 2.5rem;
            color: #1a237e;
            margin-bottom: 1rem;
            text-align: center;
        }
        h2 {
            font-size: 1.8rem;
            color: #4a148c;
            margin: 2rem 0 1rem;
            border-left: 5px solid #ff9800;
            padding-left: 1rem;
        }
        h3 {
            font-size: 1.4rem;
            color: #6a1b9a;
            margin: 1.5rem 0 0.8rem;
        }
        p {
            margin-bottom: 1.5rem;
            text-align: justify;
            line-height: 1.8;
        }
        .highlight {
            background: #fff3e0;
            padding: 1rem;
            border-left: 4px solid #ff9800;
            margin: 1.5rem 0;
            font-style: italic;
        }
        .emoji {
            font-size: 1.2rem;
            margin-right: 0.5rem;
        }
        .featured-image {
            width: 100%;
            max-width: 800px;
            margin: 2rem auto;
            border-radius: 8px;
            overflow: hidden;
            box-shadow: 0 8px 16px rgba(0, 0, 0, 0.1);
        }
        .interactive-section {
            background: #f5f5f5;
            padding: 2rem;
            border-radius: 8px;
            margin: 2rem 0;
        }
        .interactive-section h3 {
            color: #1a237e;
        }
        form {
            display: flex;
            flex-direction: column;
            gap: 1rem;
            margin-top: 1rem;
        }
        input, textarea, select {
            padding: 0.8rem;
            border: 1px solid #ccc;
            border-radius: 4px;
            font-family: inherit;
        }
        button {
            background: linear-gradient(135deg, #1a237e, #4a148c);
            color: white;
            border: none;
            padding: 0.8rem 1.5rem;
            border-radius: 4px;
            cursor: pointer;
            transition: transform 0.3s, box-shadow 0.3s;
        }
        button:hover {
            transform: translateY(-2px);
            box-shadow: 0 4px 8px rgba(0, 0, 0, 0.2);
        }
        .rating {
            display: flex;
            gap: 0.5rem;
            align-items: center;
        }
        .rating i {
            color: #ffc107;
            cursor: pointer;
            transition: color 0.3s;
        }
        .rating i:hover {
            color: #ff9800;
        }
        .footer-links {
            background: #e8eaf6;
            padding: 2rem;
            margin-top: 2rem;
            border-radius: 8px;
        }
        .web-link {
            display: inline-block;
            margin: 0.5rem 1rem 0.5rem 0;
            padding: 0.5rem 1rem;
            background: white;
            border-radius: 4px;
            box-shadow: 0 2px 4px rgba(0, 0, 0, 0.05);
            transition: transform 0.3s;
        }
        .web-link:hover {
            transform: scale(1.05);
        }
        .web-link a {
            color: #1a237e;
        }
        .footer {
            background: #1a237e;
            color: white;
            text-align: center;
            padding: 2rem;
            margin-top: 2rem;
        }
        .copyright {
            margin-top: 1rem;
            font-size: 0.9rem;
            opacity: 0.8;
        }
        @media (max-width: 768px) {
            .header-container {
                flex-wrap: wrap;
            }
            .nav-desktop {
                display: none;
            }
            .hamburger {
                display: block;
            }
            h1 {
                font-size: 2rem;
            }
            h2 {
                font-size: 1.5rem;
            }
            .container {
                padding: 0 1rem;
            }
            article {
                padding: 1.5rem;
            }
            .interactive-section {
                padding: 1.5rem;
            }
        }
        @keyframes fadeIn {
            from { opacity: 0; transform: translateY(20px); }
            to { opacity: 1; transform: translateY(0); }
        }
        article, .interactive-section, .footer-links {
            animation: fadeIn 0.8s ease-out;
        }