* {
            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;
        }
        ul {
            list-style: none;
        }
        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, #1e3c72, #2a5298);
            color: white;
            padding: 1rem 0;
            box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
            position: sticky;
            top: 0;
            z-index: 1000;
        }
        .header-top {
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        .logo {
            font-size: 1.8rem;
            font-weight: 700;
            letter-spacing: 1px;
            color: #ffcc00;
            text-transform: uppercase;
        }
        .logo span {
            color: white;
        }
        .logo:hover {
            color: #ffcc00;
            transform: scale(1.05);
            transition: transform 0.3s ease;
        }
        .nav-desktop {
            display: flex;
            gap: 2rem;
        }
        .nav-desktop a {
            font-weight: 600;
            padding: 0.5rem 1rem;
            border-radius: 4px;
            transition: background 0.3s, color 0.3s;
        }
        .nav-desktop a:hover {
            background: #ffcc00;
            color: #1e3c72;
        }
        .hamburger {
            display: none;
            font-size: 1.5rem;
            cursor: pointer;
            background: none;
            border: none;
            color: white;
        }
        .nav-mobile {
            display: none;
            flex-direction: column;
            background: #2a5298;
            padding: 1rem;
            margin-top: 1rem;
            border-radius: 8px;
            gap: 1rem;
        }
        .nav-mobile.active {
            display: flex;
        }
        .breadcrumb {
            padding: 1rem 0;
            font-size: 0.9rem;
            color: #ddd;
        }
        .breadcrumb a {
            color: #ffcc00;
        }
        .breadcrumb a:hover {
            text-decoration: underline;
        }
        main {
            padding: 2rem 0;
            background: white;
            min-height: 100vh;
        }
        .content-header {
            text-align: center;
            margin-bottom: 2rem;
        }
        .content-header h1 {
            font-size: 2.5rem;
            color: #1e3c72;
            margin-bottom: 1rem;
            line-height: 1.2;
        }
        .content-header p {
            font-size: 1.2rem;
            color: #555;
            max-width: 800px;
            margin: 0 auto;
        }
        .search-section {
            background: #f1f8ff;
            padding: 2rem;
            border-radius: 10px;
            margin-bottom: 2rem;
            text-align: center;
            box-shadow: 0 4px 8px rgba(0, 0, 0, 0.05);
        }
        .search-form {
            display: flex;
            max-width: 600px;
            margin: 1rem auto;
        }
        .search-form input {
            flex: 1;
            padding: 0.8rem 1rem;
            border: 2px solid #2a5298;
            border-radius: 4px 0 0 4px;
            font-size: 1rem;
        }
        .search-form button {
            background: #2a5298;
            color: white;
            border: none;
            padding: 0.8rem 1.5rem;
            border-radius: 0 4px 4px 0;
            cursor: pointer;
            font-weight: 600;
            transition: background 0.3s;
        }
        .search-form button:hover {
            background: #1e3c72;
        }
        .article-content {
            max-width: 900px;
            margin: 0 auto;
            padding: 1rem;
        }
        .section {
            margin-bottom: 3rem;
            padding-bottom: 2rem;
            border-bottom: 2px solid #eee;
        }
        .section h2 {
            font-size: 2rem;
            color: #1e3c72;
            margin-bottom: 1rem;
            padding-left: 0.5rem;
            border-left: 5px solid #ffcc00;
        }
        .section h3 {
            font-size: 1.5rem;
            color: #2a5298;
            margin: 1.5rem 0 1rem;
        }
        .section p {
            margin-bottom: 1rem;
            font-size: 1.1rem;
            line-height: 1.8;
            color: #444;
        }
        .section ul, .section ol {
            margin-left: 2rem;
            margin-bottom: 1rem;
        }
        .section li {
            margin-bottom: 0.5rem;
            font-size: 1.1rem;
        }
        .highlight {
            background: #fffacd;
            padding: 1rem;
            border-radius: 8px;
            border-left: 4px solid #ffcc00;
            margin: 1.5rem 0;
        }
        .bold {
            font-weight: 700;
            color: #1e3c72;
        }
        .emoji {
            font-size: 1.2rem;
            margin-right: 0.5rem;
        }
        .image-container {
            margin: 2rem auto;
            text-align: center;
            max-width: 800px;
        }
        .image-container img {
            border-radius: 10px;
            box-shadow: 0 6px 15px rgba(0, 0, 0, 0.1);
            transition: transform 0.3s ease;
        }
        .image-container img:hover {
            transform: scale(1.02);
        }
        .image-caption {
            margin-top: 0.5rem;
            font-style: italic;
            color: #666;
            font-size: 0.9rem;
        }
        .internal-link {
            color: #2a5298;
            font-weight: 600;
            text-decoration: underline;
            transition: color 0.3s;
        }
        .internal-link:hover {
            color: #ffcc00;
        }
        .interaction-section {
            background: #f9f9f9;
            padding: 2rem;
            border-radius: 10px;
            margin-top: 3rem;
        }
        .interaction-section h2 {
            color: #1e3c72;
            margin-bottom: 1.5rem;
            text-align: center;
        }
        .form-group {
            margin-bottom: 1.5rem;
        }
        .form-group label {
            display: block;
            margin-bottom: 0.5rem;
            font-weight: 600;
            color: #333;
        }
        .form-group input,
        .form-group textarea,
        .form-group select {
            width: 100%;
            padding: 0.8rem;
            border: 1px solid #ccc;
            border-radius: 4px;
            font-size: 1rem;
            transition: border 0.3s;
        }
        .form-group input:focus,
        .form-group textarea:focus,
        .form-group select:focus {
            border-color: #2a5298;
            outline: none;
        }
        .rating-stars {
            display: flex;
            gap: 0.5rem;
            margin-bottom: 1rem;
        }
        .rating-stars .star {
            font-size: 1.5rem;
            color: #ddd;
            cursor: pointer;
            transition: color 0.3s;
        }
        .rating-stars .star.active,
        .rating-stars .star:hover {
            color: #ffcc00;
        }
        .submit-btn {
            background: #2a5298;
            color: white;
            border: none;
            padding: 0.8rem 2rem;
            border-radius: 4px;
            font-size: 1rem;
            font-weight: 600;
            cursor: pointer;
            transition: background 0.3s;
        }
        .submit-btn:hover {
            background: #1e3c72;
        }
        footer {
            background: #1e3c72;
            color: white;
            padding: 2rem 0;
        }
        .footer-links {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            gap: 1.5rem;
            margin-bottom: 2rem;
        }
        .web-link {
            background: rgba(255, 255, 255, 0.1);
            padding: 1rem;
            border-radius: 6px;
            transition: background 0.3s;
        }
        .web-link:hover {
            background: rgba(255, 255, 255, 0.2);
        }
        .web-link a {
            color: #ffcc00;
            font-weight: 600;
        }
        .web-link a:hover {
            text-decoration: underline;
        }
        .copyright {
            text-align: center;
            padding-top: 2rem;
            border-top: 1px solid rgba(255, 255, 255, 0.2);
            font-size: 0.9rem;
            color: #ccc;
        }
        @media (max-width: 768px) {
            .header-top {
                flex-wrap: wrap;
            }
            .nav-desktop {
                display: none;
            }
            .hamburger {
                display: block;
            }
            .content-header h1 {
                font-size: 2rem;
            }
            .section h2 {
                font-size: 1.7rem;
            }
            .section h3 {
                font-size: 1.3rem;
            }
            .search-form {
                flex-direction: column;
            }
            .search-form input,
            .search-form button {
                width: 100%;
                border-radius: 4px;
                margin-bottom: 0.5rem;
            }
            .footer-links {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        @media (max-width: 480px) {
            .footer-links {
                grid-template-columns: 1fr;
            }
            .container {
                padding: 0 10px;
            }
        }