* {
            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: #f9f9f9;
            padding: 0;
            margin: 0;
        }
        a {
            text-decoration: none;
            color: #0077cc;
            transition: color 0.3s ease;
        }
        a:hover {
            color: #0055aa;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        header {
            background: linear-gradient(135deg, #1a237e, #3949ab);
            color: white;
            padding: 1rem 0;
            box-shadow: 0 4px 12px rgba(0,0,0,0.1);
            position: sticky;
            top: 0;
            z-index: 1000;
        }
        .header-content {
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        .logo {
            font-size: 2rem;
            font-weight: bold;
            color: white;
            text-transform: uppercase;
            letter-spacing: 1px;
        }
        .logo span {
            color: #ffcc00;
        }
        .desktop-nav ul {
            display: flex;
            list-style: none;
            gap: 2rem;
        }
        .desktop-nav a {
            color: white;
            font-weight: 500;
            padding: 0.5rem 1rem;
            border-radius: 4px;
            transition: background 0.3s ease;
        }
        .desktop-nav a:hover {
            background: rgba(255,255,255,0.2);
        }
        .hamburger {
            display: none;
            font-size: 1.8rem;
            cursor: pointer;
            color: white;
        }
        .mobile-nav {
            display: none;
            position: absolute;
            top: 100%;
            left: 0;
            width: 100%;
            background: #1a237e;
            padding: 1rem;
            box-shadow: 0 4px 8px rgba(0,0,0,0.2);
        }
        .mobile-nav.active {
            display: block;
        }
        .mobile-nav ul {
            list-style: none;
            text-align: center;
        }
        .mobile-nav li {
            margin: 1rem 0;
        }
        .mobile-nav a {
            color: white;
            font-size: 1.2rem;
            display: block;
            padding: 0.5rem;
        }
        .breadcrumb {
            padding: 1rem 0;
            background: #e8eaf6;
            font-size: 0.9rem;
        }
        .breadcrumb a {
            color: #555;
        }
        .breadcrumb a:hover {
            color: #0077cc;
        }
        main {
            background: white;
            padding: 2rem 0;
            margin-bottom: 2rem;
            border-radius: 8px;
            box-shadow: 0 2px 10px rgba(0,0,0,0.05);
        }
        .article-header {
            text-align: center;
            margin-bottom: 2rem;
            padding-bottom: 1rem;
            border-bottom: 2px solid #eee;
        }
        h1 {
            font-size: 2.8rem;
            color: #1a237e;
            margin-bottom: 1rem;
            line-height: 1.2;
        }
        .article-meta {
            color: #666;
            font-style: italic;
        }
        .content {
            max-width: 900px;
            margin: 0 auto;
            padding: 0 20px;
        }
        h2 {
            font-size: 2rem;
            color: #3949ab;
            margin: 2rem 0 1rem;
            padding-bottom: 0.5rem;
            border-bottom: 1px dashed #ccc;
        }
        h3 {
            font-size: 1.5rem;
            color: #5c6bc0;
            margin: 1.5rem 0 1rem;
        }
        p {
            margin-bottom: 1.2rem;
            font-size: 1.1rem;
            line-height: 1.8;
        }
        .highlight {
            background: #fff8e1;
            padding: 1.5rem;
            border-left: 4px solid #ffcc00;
            margin: 1.5rem 0;
            border-radius: 0 4px 4px 0;
        }
        .feature-image {
            margin: 2rem auto;
            text-align: center;
        }
        .feature-image img {
            border-radius: 8px;
            box-shadow: 0 4px 12px rgba(0,0,0,0.1);
            max-width: 800px;
        }
        .interactive-section {
            background: #f3f4ff;
            padding: 2rem;
            border-radius: 8px;
            margin: 3rem 0;
        }
        .form-group {
            margin-bottom: 1.5rem;
        }
        label {
            display: block;
            margin-bottom: 0.5rem;
            font-weight: bold;
            color: #333;
        }
        input, textarea, select {
            width: 100%;
            padding: 0.8rem;
            border: 1px solid #ccc;
            border-radius: 4px;
            font-size: 1rem;
            transition: border 0.3s ease;
        }
        input:focus, textarea:focus, select:focus {
            border-color: #3949ab;
            outline: none;
        }
        button {
            background: #3949ab;
            color: white;
            border: none;
            padding: 0.8rem 2rem;
            font-size: 1rem;
            border-radius: 4px;
            cursor: pointer;
            transition: background 0.3s ease;
        }
        button:hover {
            background: #1a237e;
        }
        .rating {
            display: flex;
            gap: 0.5rem;
            margin: 1rem 0;
        }
        .star {
            font-size: 2rem;
            color: #ddd;
            cursor: pointer;
            transition: color 0.2s;
        }
        .star:hover,
        .star.active {
            color: #ffcc00;
        }
        .footer-links {
            background: #1a237e;
            color: white;
            padding: 2rem 0;
        }
        .web-link {
            display: inline-block;
            margin: 0.5rem 1rem;
            padding: 0.5rem 1rem;
            background: rgba(255,255,255,0.1);
            border-radius: 4px;
            transition: background 0.3s ease;
        }
        .web-link:hover {
            background: rgba(255,255,255,0.2);
        }
        .web-link a {
            color: white;
        }
        footer {
            background: #0d1533;
            color: #aaa;
            text-align: center;
            padding: 2rem 0;
            font-size: 0.9rem;
        }
        @media (max-width: 768px) {
            .desktop-nav {
                display: none;
            }
            .hamburger {
                display: block;
            }
            h1 {
                font-size: 2rem;
            }
            h2 {
                font-size: 1.6rem;
            }
            h3 {
                font-size: 1.3rem;
            }
            .interactive-section {
                padding: 1.5rem;
            }
            .web-link {
                display: block;
                margin: 0.5rem 0;
            }
        }
        .link-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
            gap: 1rem;
            margin: 2rem 0;
        }
        .stats {
            display: flex;
            justify-content: space-around;
            flex-wrap: wrap;
            background: #e8eaf6;
            padding: 1.5rem;
            border-radius: 8px;
            margin: 2rem 0;
        }
        .stat-item {
            text-align: center;
            padding: 1rem;
            flex: 1;
            min-width: 150px;
        }
        .stat-number {
            font-size: 2.5rem;
            font-weight: bold;
            color: #3949ab;
        }
        .stat-label {
            font-size: 1rem;
            color: #666;
        }
        .logo:hover {
            transform: scale(1.05);
            transition: transform 0.3s ease;
        }
        button, .web-link {
            transform: translateY(0);
            transition: transform 0.2s ease;
        }
        button:hover, .web-link:hover {
            transform: translateY(-3px);
        }
        .feature-image img:hover {
            transform: scale(1.02);
            transition: transform 0.3s ease;
        }