* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
            line-height: 1.7;
            color: #333;
            background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
            min-height: 100vh;
        }
        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        header {
            background: linear-gradient(90deg, #1e3c72 0%, #2a5298 100%);
            color: white;
            padding: 1.5rem 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 a {
            font-size: 2.2rem;
            font-weight: 800;
            text-decoration: none;
            color: white;
            text-transform: uppercase;
            letter-spacing: 1px;
            background: linear-gradient(90deg, #00b4db 0%, #0083b0 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .logo a:hover {
            opacity: 0.9;
        }
        nav ul {
            display: flex;
            list-style: none;
        }
        nav ul li {
            margin-left: 2rem;
        }
        nav ul li a {
            color: white;
            text-decoration: none;
            font-weight: 600;
            font-size: 1.1rem;
            transition: color 0.3s, transform 0.3s;
            padding: 0.5rem 0;
            position: relative;
        }
        nav ul li a:hover {
            color: #00b4db;
            transform: translateY(-2px);
        }
        nav ul li a::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 0;
            height: 3px;
            background: #00b4db;
            transition: width 0.3s;
        }
        nav ul li a:hover::after {
            width: 100%;
        }
        .hamburger {
            display: none;
            font-size: 1.8rem;
            cursor: pointer;
            color: white;
        }
        .breadcrumb {
            background: #e9ecef;
            padding: 1rem 0;
            margin-bottom: 2rem;
            border-radius: 0 0 8px 8px;
        }
        .breadcrumb ol {
            display: flex;
            list-style: none;
            flex-wrap: wrap;
        }
        .breadcrumb li {
            margin-right: 0.5rem;
            font-size: 0.95rem;
        }
        .breadcrumb li:not(:last-child)::after {
            content: '›';
            margin-left: 0.5rem;
            color: #6c757d;
        }
        .breadcrumb a {
            color: #1e3c72;
            text-decoration: none;
        }
        .breadcrumb a:hover {
            text-decoration: underline;
        }
        .search-container {
            background: white;
            padding: 2rem;
            border-radius: 12px;
            box-shadow: 0 5px 15px rgba(0,0,0,0.05);
            margin-bottom: 2.5rem;
            text-align: center;
        }
        .search-container h2 {
            color: #1e3c72;
            margin-bottom: 1rem;
        }
        .search-form {
            display: flex;
            max-width: 600px;
            margin: 0 auto;
        }
        .search-form input {
            flex: 1;
            padding: 1rem 1.5rem;
            border: 2px solid #ddd;
            border-radius: 50px 0 0 50px;
            font-size: 1rem;
            outline: none;
            transition: border-color 0.3s;
        }
        .search-form input:focus {
            border-color: #00b4db;
        }
        .search-form button {
            background: linear-gradient(90deg, #00b4db 0%, #0083b0 100%);
            color: white;
            border: none;
            padding: 0 2rem;
            border-radius: 0 50px 50px 0;
            cursor: pointer;
            font-weight: 600;
            font-size: 1rem;
            transition: opacity 0.3s;
        }
        .search-form button:hover {
            opacity: 0.9;
        }
        main {
            padding: 2rem 0;
        }
        article {
            background: white;
            padding: 3rem;
            border-radius: 12px;
            box-shadow: 0 10px 30px rgba(0,0,0,0.08);
            margin-bottom: 3rem;
        }
        h1 {
            font-size: 2.8rem;
            color: #1e3c72;
            margin-bottom: 1.5rem;
            line-height: 1.2;
        }
        h2 {
            font-size: 2rem;
            color: #2a5298;
            margin: 2.5rem 0 1.2rem;
            padding-bottom: 0.5rem;
            border-bottom: 3px solid #00b4db;
        }
        h3 {
            font-size: 1.6rem;
            color: #333;
            margin: 2rem 0 1rem;
        }
        p {
            margin-bottom: 1.5rem;
            font-size: 1.1rem;
            text-align: justify;
        }
        .highlight {
            background: linear-gradient(90deg, rgba(0,180,219,0.1) 0%, rgba(0,131,176,0.1) 100%);
            border-left: 4px solid #00b4db;
            padding: 1.5rem;
            margin: 2rem 0;
            border-radius: 0 8px 8px 0;
        }
        .highlight p {
            margin-bottom: 0;
            font-weight: 600;
            color: #1e3c72;
        }
        .image-container {
            text-align: center;
            margin: 3rem 0;
        }
        .image-container img {
            max-width: 100%;
            height: auto;
            border-radius: 12px;
            box-shadow: 0 10px 20px rgba(0,0,0,0.1);
            transition: transform 0.5s, box-shadow 0.5s;
        }
        .image-container img:hover {
            transform: scale(1.02);
            box-shadow: 0 15px 30px rgba(0,0,0,0.15);
        }
        .image-caption {
            font-style: italic;
            color: #666;
            margin-top: 0.8rem;
            font-size: 0.95rem;
        }
        .interactive-section {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 2rem;
            margin: 3rem 0;
        }
        .comment-box, .rating-box {
            background: #f8f9fa;
            padding: 2rem;
            border-radius: 12px;
            border: 2px solid #e9ecef;
        }
        .comment-box h3, .rating-box h3 {
            color: #1e3c72;
            margin-top: 0;
        }
        textarea, select {
            width: 100%;
            padding: 1rem;
            margin: 1rem 0;
            border: 2px solid #ddd;
            border-radius: 8px;
            font-family: inherit;
            font-size: 1rem;
            resize: vertical;
        }
        textarea:focus, select:focus {
            outline: none;
            border-color: #00b4db;
        }
        .submit-btn {
            background: linear-gradient(90deg, #1e3c72 0%, #2a5298 100%);
            color: white;
            border: none;
            padding: 1rem 2rem;
            border-radius: 50px;
            cursor: pointer;
            font-weight: 600;
            font-size: 1rem;
            transition: transform 0.3s, opacity 0.3s;
            display: block;
            margin: 1rem auto 0;
        }
        .submit-btn:hover {
            transform: translateY(-3px);
            opacity: 0.95;
        }
        .star-rating {
            display: flex;
            justify-content: center;
            gap: 0.5rem;
            margin: 1.5rem 0;
            font-size: 2rem;
            color: #ffc107;
        }
        .star-rating i {
            cursor: pointer;
            transition: transform 0.2s;
        }
        .star-rating i:hover {
            transform: scale(1.2);
        }
        .web-links {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
            gap: 1.5rem;
            margin: 3rem 0;
        }
        .web-link {
            background: white;
            padding: 1.5rem;
            border-radius: 8px;
            box-shadow: 0 3px 10px rgba(0,0,0,0.05);
            transition: transform 0.3s, box-shadow 0.3s;
        }
        .web-link:hover {
            transform: translateY(-5px);
            box-shadow: 0 8px 20px rgba(0,0,0,0.1);
        }
        .web-link a {
            color: #1e3c72;
            text-decoration: none;
            font-weight: 600;
            display: block;
            font-size: 1.1rem;
        }
        .web-link a:hover {
            color: #00b4db;
        }
        footer {
            background: #1e3c72;
            color: white;
            padding: 3rem 0 1.5rem;
            margin-top: 4rem;
        }
        .footer-content {
            display: flex;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 2rem;
        }
        .footer-section {
            flex: 1;
            min-width: 250px;
        }
        .footer-section h3 {
            color: #00b4db;
            margin-bottom: 1.5rem;
            font-size: 1.3rem;
        }
        .footer-links {
            list-style: none;
        }
        .footer-links li {
            margin-bottom: 0.8rem;
        }
        .footer-links a {
            color: #ddd;
            text-decoration: none;
            transition: color 0.3s;
        }
        .footer-links a:hover {
            color: white;
            padding-left: 5px;
        }
        .copyright {
            text-align: center;
            padding-top: 2rem;
            margin-top: 2rem;
            border-top: 1px solid #2a5298;
            color: #aaa;
            font-size: 0.9rem;
        }
        @media (max-width: 768px) {
            .header-content {
                flex-direction: column;
                text-align: center;
            }
            nav ul {
                flex-direction: column;
                margin-top: 1.5rem;
                display: none;
                width: 100%;
            }
            nav ul.active {
                display: flex;
            }
            nav ul li {
                margin: 0.8rem 0;
            }
            .hamburger {
                display: block;
                position: absolute;
                top: 1.5rem;
                right: 20px;
            }
            h1 {
                font-size: 2.2rem;
            }
            h2 {
                font-size: 1.8rem;
            }
            article {
                padding: 2rem;
            }
            .search-form {
                flex-direction: column;
            }
            .search-form input {
                border-radius: 50px;
                margin-bottom: 1rem;
            }
            .search-form button {
                border-radius: 50px;
                padding: 1rem;
            }
            .footer-content {
                flex-direction: column;
            }
        }
        @media print {
            header, .search-container, .interactive-section, footer {
                display: none;
            }
            article {
                box-shadow: none;
                padding: 0;
            }
        }