* {
            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: linear-gradient(135deg, #f5f7fa 0%, #e4edf5 100%);
            max-width: 1920px;
            margin: 0 auto;
        }
        h1, h2, h3, h4 {
            color: #2c3e50;
            margin-bottom: 1rem;
            line-height: 1.3;
        }
        h1 {
            font-size: 2.8rem;
            background: linear-gradient(90deg, #3498db, #2c3e50);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            margin: 2rem 0;
            text-align: center;
        }
        h2 {
            font-size: 2.2rem;
            border-left: 5px solid #e74c3c;
            padding-left: 15px;
            margin-top: 3rem;
            color: #2980b9;
        }
        h3 {
            font-size: 1.8rem;
            color: #16a085;
            margin-top: 2.5rem;
        }
        h4 {
            font-size: 1.4rem;
            color: #8e44ad;
        }
        p {
            margin-bottom: 1.5rem;
            font-size: 1.1rem;
            text-align: justify;
        }
        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        header {
            background: linear-gradient(135deg, #2c3e50 0%, #3498db 100%);
            color: white;
            padding: 1rem 0;
            position: sticky;
            top: 0;
            z-index: 1000;
            box-shadow: 0 4px 12px rgba(0,0,0,0.1);
        }
        .header-content {
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        .logo {
            font-size: 2.2rem;
            font-weight: 700;
            text-decoration: none;
            color: white;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .logo:hover {
            color: #f1c40f;
            transform: scale(1.05);
            transition: all 0.3s ease;
        }
        .logo i {
            color: #f1c40f;
        }
        nav ul {
            display: flex;
            list-style: none;
            gap: 2rem;
        }
        nav a {
            color: white;
            text-decoration: none;
            font-weight: 600;
            font-size: 1.1rem;
            padding: 0.5rem 1rem;
            border-radius: 4px;
            transition: all 0.3s ease;
        }
        nav a:hover {
            background: rgba(255,255,255,0.2);
            transform: translateY(-2px);
        }
        .nav-active {
            background: #e74c3c;
            color: white;
        }
        .hamburger {
            display: none;
            background: none;
            border: none;
            color: white;
            font-size: 1.8rem;
            cursor: pointer;
            padding: 0.5rem;
        }
        .breadcrumb {
            background: #ecf0f1;
            padding: 1rem 0;
            margin-bottom: 2rem;
            border-radius: 0 0 8px 8px;
        }
        .breadcrumb ul {
            display: flex;
            list-style: none;
            gap: 0.5rem;
            flex-wrap: wrap;
        }
        .breadcrumb a {
            color: #3498db;
            text-decoration: none;
        }
        .breadcrumb a:hover {
            text-decoration: underline;
        }
        .search-section {
            background: white;
            padding: 2rem;
            border-radius: 10px;
            box-shadow: 0 5px 15px rgba(0,0,0,0.08);
            margin: 2rem 0;
            text-align: center;
        }
        .search-form {
            display: flex;
            max-width: 600px;
            margin: 1rem auto 0;
        }
        .search-form input {
            flex: 1;
            padding: 1rem;
            border: 2px solid #3498db;
            border-radius: 6px 0 0 6px;
            font-size: 1rem;
        }
        .search-form button {
            background: #3498db;
            color: white;
            border: none;
            padding: 0 1.5rem;
            border-radius: 0 6px 6px 0;
            cursor: pointer;
            font-size: 1.1rem;
            transition: background 0.3s ease;
        }
        .search-form button:hover {
            background: #2980b9;
        }
        article {
            background: white;
            padding: 2.5rem;
            border-radius: 12px;
            box-shadow: 0 8px 30px rgba(0,0,0,0.06);
            margin-bottom: 3rem;
        }
        .highlight-box {
            background: linear-gradient(135deg, #e3f2fd 0%, #f3e5f5 100%);
            border-left: 5px solid #9b59b6;
            padding: 1.5rem;
            margin: 2rem 0;
            border-radius: 0 8px 8px 0;
        }
        .stat-box {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 1.5rem;
            margin: 2.5rem 0;
        }
        .stat-item {
            background: white;
            padding: 1.5rem;
            border-radius: 8px;
            text-align: center;
            box-shadow: 0 4px 6px rgba(0,0,0,0.05);
            border-top: 4px solid #3498db;
            transition: transform 0.3s ease;
        }
        .stat-item:hover {
            transform: translateY(-5px);
        }
        .stat-number {
            font-size: 2.5rem;
            font-weight: 700;
            color: #2c3e50;
            display: block;
            margin-bottom: 0.5rem;
        }
        .article-image {
            width: 100%;
            max-width: 800px;
            height: auto;
            border-radius: 10px;
            margin: 2rem auto;
            display: block;
            box-shadow: 0 10px 20px rgba(0,0,0,0.1);
            transition: transform 0.5s ease;
        }
        .article-image:hover {
            transform: scale(1.02);
        }
        .interactive-section {
            background: #f8f9fa;
            padding: 2rem;
            border-radius: 10px;
            margin: 3rem 0;
            border: 2px solid #dfe6e9;
        }
        .rating-stars {
            display: flex;
            gap: 0.5rem;
            margin: 1rem 0;
        }
        .star {
            font-size: 1.8rem;
            color: #ddd;
            cursor: pointer;
            transition: color 0.2s ease;
        }
        .star:hover,
        .star.active {
            color: #f1c40f;
        }
        .comment-form textarea,
        .rating-form select {
            width: 100%;
            padding: 1rem;
            margin: 1rem 0;
            border: 2px solid #bdc3c7;
            border-radius: 6px;
            font-family: inherit;
            font-size: 1rem;
        }
        .submit-btn {
            background: linear-gradient(135deg, #27ae60 0%, #2ecc71 100%);
            color: white;
            border: none;
            padding: 1rem 2rem;
            border-radius: 6px;
            font-size: 1.1rem;
            cursor: pointer;
            transition: all 0.3s ease;
        }
        .submit-btn:hover {
            transform: translateY(-2px);
            box-shadow: 0 5px 15px rgba(46, 204, 113, 0.4);
        }
        .web-links {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            gap: 1rem;
            margin: 3rem 0;
            padding: 2rem;
            background: #2c3e50;
            border-radius: 10px;
        }
        .web-link {
            background: #34495e;
            padding: 1rem;
            border-radius: 6px;
            text-align: center;
        }
        .web-link a {
            color: #ecf0f1;
            text-decoration: none;
            font-weight: 600;
            display: block;
            padding: 0.5rem;
            transition: all 0.3s ease;
        }
        .web-link a:hover {
            color: #f1c40f;
            transform: translateX(5px);
        }
        footer {
            background: #2c3e50;
            color: #ecf0f1;
            padding: 3rem 0 1.5rem;
            margin-top: 4rem;
        }
        .footer-content {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 2rem;
            margin-bottom: 2rem;
        }
        .copyright {
            text-align: center;
            padding-top: 1.5rem;
            border-top: 1px solid #4a6572;
            font-size: 0.9rem;
            color: #bdc3c7;
        }
        @media (max-width: 768px) {
            h1 {
                font-size: 2.2rem;
            }
            h2 {
                font-size: 1.8rem;
            }
            .header-content {
                flex-wrap: wrap;
            }
            nav ul {
                display: none;
                flex-direction: column;
                width: 100%;
                margin-top: 1rem;
                gap: 0;
            }
            nav ul.show {
                display: flex;
            }
            nav a {
                display: block;
                padding: 1rem;
                border-bottom: 1px solid rgba(255,255,255,0.1);
            }
            .hamburger {
                display: block;
            }
            article {
                padding: 1.5rem;
            }
            .stat-box {
                grid-template-columns: 1fr;
            }
            .web-links {
                grid-template-columns: 1fr;
            }
            .search-form {
                flex-direction: column;
            }
            .search-form input {
                border-radius: 6px;
                margin-bottom: 0.5rem;
            }
            .search-form button {
                border-radius: 6px;
                padding: 1rem;
            }
        }
        @keyframes fadeIn {
            from { opacity: 0; transform: translateY(20px); }
            to { opacity: 1; transform: translateY(0); }
        }
        .fade-in {
            animation: fadeIn 0.8s ease-out;
        }
        .bold {
            font-weight: 700;
            color: #2c3e50;
        }
        .italic {
            font-style: italic;
            color: #7f8c8d;
        }
        .text-center {
            text-align: center;
        }
        .mt-3 { margin-top: 3rem; }
        .mb-3 { margin-bottom: 3rem; }
        .py-2 { padding-top: 2rem; padding-bottom: 2rem; }
        .emoji {
            font-size: 1.2em;
            margin: 0 0.2rem;
        }