* {
            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;
        }
        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        header {
            background: linear-gradient(135deg, #1a2a3a, #2c3e50);
            color: white;
            padding: 1rem 0;
            box-shadow: 0 4px 12px rgba(0,0,0,0.1);
        }
        .header-content {
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        .logo a {
            font-size: 2rem;
            font-weight: bold;
            color: #00ccff;
            text-decoration: none;
            text-transform: uppercase;
            letter-spacing: 1px;
            transition: color 0.3s ease;
        }
        .logo a:hover {
            color: #ff9900;
        }
        nav {
            display: flex;
            align-items: center;
        }
        .nav-links {
            display: flex;
            list-style: none;
        }
        .nav-links li {
            margin-left: 1.5rem;
        }
        .nav-links a {
            color: white;
            text-decoration: none;
            font-weight: 500;
            padding: 0.5rem 0.8rem;
            border-radius: 4px;
            transition: background 0.3s ease, color 0.3s ease;
        }
        .nav-links a:hover {
            background: #00ccff;
            color: #1a2a3a;
        }
        .hamburger {
            display: none;
            font-size: 1.5rem;
            background: none;
            border: none;
            color: white;
            cursor: pointer;
        }
        .breadcrumb {
            background: #ecf0f1;
            padding: 0.8rem 0;
            margin-bottom: 2rem;
        }
        .breadcrumb .container {
            display: flex;
            align-items: center;
        }
        .breadcrumb a {
            color: #3498db;
            text-decoration: none;
            margin-right: 0.5rem;
        }
        .breadcrumb span {
            margin: 0 0.5rem;
            color: #7f8c8d;
        }
        main {
            background: white;
            padding: 2rem;
            border-radius: 10px;
            box-shadow: 0 5px 15px rgba(0,0,0,0.05);
            margin-bottom: 2rem;
        }
        article h1 {
            font-size: 2.8rem;
            color: #2c3e50;
            margin-bottom: 1.5rem;
            text-align: center;
        }
        article h2 {
            font-size: 2rem;
            color: #1a5276;
            margin: 2rem 0 1rem;
            padding-bottom: 0.5rem;
            border-bottom: 2px solid #00ccff;
        }
        article h3 {
            font-size: 1.5rem;
            color: #2c3e50;
            margin: 1.5rem 0 0.8rem;
        }
        article p {
            margin-bottom: 1.2rem;
            font-size: 1.1rem;
            text-align: justify;
        }
        article em {
            color: #e74c3c;
            font-style: italic;
        }
        article strong {
            color: #2c3e50;
            font-weight: 700;
        }
        .article-image {
            width: 100%;
            max-width: 800px;
            height: auto;
            border-radius: 10px;
            margin: 2rem auto;
            display: block;
            box-shadow: 0 8px 16px rgba(0,0,0,0.1);
            transition: transform 0.3s ease;
        }
        .article-image:hover {
            transform: scale(1.02);
        }
        .form-section {
            background: #f8f9fa;
            padding: 1.5rem;
            border-radius: 10px;
            margin: 2rem 0;
            border-left: 5px solid #00ccff;
        }
        .form-section h3 {
            margin-top: 0;
        }
        form {
            display: grid;
            gap: 1rem;
        }
        form input, form textarea, form select {
            width: 100%;
            padding: 0.8rem;
            border: 1px solid #bdc3c7;
            border-radius: 5px;
            font-size: 1rem;
        }
        form button {
            background: linear-gradient(to right, #3498db, #00ccff);
            color: white;
            border: none;
            padding: 0.8rem 1.5rem;
            border-radius: 5px;
            cursor: pointer;
            font-size: 1rem;
            font-weight: bold;
            transition: background 0.3s ease;
        }
        form button:hover {
            background: linear-gradient(to right, #2980b9, #0099cc);
        }
        footer {
            background: #2c3e50;
            color: white;
            padding: 2rem 0;
        }
        .web-links {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            gap: 1rem;
            margin-bottom: 2rem;
        }
        .web-link {
            background: #34495e;
            padding: 1rem;
            border-radius: 5px;
            transition: background 0.3s ease;
        }
        .web-link:hover {
            background: #1a252f;
        }
        .web-link a {
            color: #00ccff;
            text-decoration: none;
            font-weight: 500;
        }
        .web-link a:hover {
            text-decoration: underline;
        }
        .copyright {
            text-align: center;
            padding-top: 1.5rem;
            border-top: 1px solid #4a6572;
            font-size: 0.9rem;
            color: #bdc3c7;
        }
        @media (max-width: 768px) {
            .header-content {
                flex-direction: column;
                align-items: flex-start;
            }
            .nav-links {
                display: none;
                flex-direction: column;
                width: 100%;
                margin-top: 1rem;
            }
            .nav-links.active {
                display: flex;
            }
            .nav-links li {
                margin: 0.5rem 0;
            }
            .hamburger {
                display: block;
                position: absolute;
                top: 1rem;
                right: 20px;
            }
            article h1 {
                font-size: 2rem;
            }
            article h2 {
                font-size: 1.6rem;
            }
            .web-links {
                grid-template-columns: 1fr;
            }
        }
        .text-center {
            text-align: center;
        }
        .mt-2 {
            margin-top: 2rem;
        }
        .mb-2 {
            margin-bottom: 2rem;
        }
        .emoji {
            font-size: 1.2rem;
            margin-right: 0.3rem;
        }
        a {
            transition: color 0.2s ease;
        }
        button:focus, input:focus, textarea:focus {
            outline: 2px solid #00ccff;
        }
        .rating {
            display: flex;
            gap: 0.5rem;
            margin: 1rem 0;
        }
        .rating input {
            display: none;
        }
        .rating label {
            cursor: pointer;
            font-size: 1.5rem;
            color: #ccc;
            transition: color 0.2s;
        }
        .rating label:hover,
        .rating label:hover ~ label,
        .rating input:checked ~ label {
            color: #ff9900;
        }