* {
            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;
        }
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        header {
            background: linear-gradient(135deg, #1e3c72 0%, #2a5298 100%);
            color: white;
            padding: 1rem 0;
            box-shadow: 0 2px 10px rgba(0,0,0,0.1);
        }
        .header-top {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 0 20px;
        }
        .logo {
            font-size: 1.8rem;
            font-weight: bold;
        }
        .logo a {
            color: white;
            text-decoration: none;
        }
        .nav-desktop {
            display: flex;
            gap: 2rem;
        }
        .nav-desktop a {
            color: white;
            text-decoration: none;
            padding: 0.5rem 1rem;
            border-radius: 5px;
            transition: background-color 0.3s;
        }
        .nav-desktop a:hover {
            background-color: rgba(255,255,255,0.2);
        }
        .hamburger {
            display: none;
            background: none;
            border: none;
            color: white;
            font-size: 1.5rem;
            cursor: pointer;
        }
        .nav-mobile {
            display: none;
            flex-direction: column;
            background: #2a5298;
            padding: 1rem;
        }
        .nav-mobile.active {
            display: flex;
        }
        .nav-mobile a {
            color: white;
            text-decoration: none;
            padding: 0.8rem;
            border-bottom: 1px solid rgba(255,255,255,0.1);
        }
        .breadcrumb {
            padding: 1rem 20px;
            background: #f1f3f4;
            font-size: 0.9rem;
        }
        .breadcrumb a {
            color: #1e3c72;
            text-decoration: none;
        }
        .search-section {
            background: white;
            padding: 2rem;
            margin: 2rem 0;
            border-radius: 10px;
            box-shadow: 0 2px 15px rgba(0,0,0,0.1);
            text-align: center;
        }
        .search-form {
            max-width: 600px;
            margin: 0 auto;
            display: flex;
            gap: 10px;
        }
        .search-input {
            flex: 1;
            padding: 12px;
            border: 2px solid #e0e0e0;
            border-radius: 5px;
            font-size: 1rem;
        }
        .search-btn {
            padding: 12px 24px;
            background: #1e3c72;
            color: white;
            border: none;
            border-radius: 5px;
            cursor: pointer;
            transition: background-color 0.3s;
        }
        .search-btn:hover {
            background: #2a5298;
        }
        .main-content {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 2rem;
            margin: 2rem 0;
        }
        .article-content {
            background: white;
            padding: 2rem;
            border-radius: 10px;
            box-shadow: 0 2px 15px rgba(0,0,0,0.1);
        }
        .sidebar {
            background: white;
            padding: 1.5rem;
            border-radius: 10px;
            box-shadow: 0 2px 15px rgba(0,0,0,0.1);
        }
        h1 {
            color: #1e3c72;
            margin-bottom: 1.5rem;
            font-size: 2.2rem;
            line-height: 1.3;
        }
        h2 {
            color: #2a5298;
            margin: 2rem 0 1rem 0;
            font-size: 1.8rem;
            border-left: 4px solid #1e3c72;
            padding-left: 1rem;
        }
        h3 {
            color: #1e3c72;
            margin: 1.5rem 0 1rem 0;
            font-size: 1.4rem;
        }
        p {
            margin-bottom: 1.2rem;
            text-align: justify;
            line-height: 1.8;
        }
        .highlight {
            background: #fff3cd;
            padding: 1.5rem;
            border-left: 4px solid #ffc107;
            margin: 1.5rem 0;
            border-radius: 0 5px 5px 0;
        }
        .feature-image {
            width: 100%;
            height: auto;
            border-radius: 10px;
            margin: 1.5rem 0;
            box-shadow: 0 4px 15px rgba(0,0,0,0.1);
        }
        .interactive-section {
            background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
            color: white;
            padding: 2rem;
            border-radius: 10px;
            margin: 2rem 0;
            text-align: center;
        }
        .rating-system {
            display: flex;
            justify-content: center;
            gap: 1rem;
            margin: 1rem 0;
        }
        .rating-btn {
            background: rgba(255,255,255,0.2);
            border: 2px solid white;
            color: white;
            padding: 0.8rem 1.5rem;
            border-radius: 25px;
            cursor: pointer;
            transition: all 0.3s;
        }
        .rating-btn:hover {
            background: white;
            color: #667eea;
        }
        .comment-form {
            background: white;
            padding: 2rem;
            border-radius: 10px;
            margin: 2rem 0;
        }
        .form-group {
            margin-bottom: 1.5rem;
        }
        .form-group label {
            display: block;
            margin-bottom: 0.5rem;
            font-weight: bold;
            color: #333;
        }
        .form-control {
            width: 100%;
            padding: 12px;
            border: 2px solid #e0e0e0;
            border-radius: 5px;
            font-size: 1rem;
            transition: border-color 0.3s;
        }
        .form-control:focus {
            border-color: #1e3c72;
            outline: none;
        }
        .submit-btn {
            background: #1e3c72;
            color: white;
            padding: 12px 30px;
            border: none;
            border-radius: 5px;
            cursor: pointer;
            font-size: 1rem;
            transition: background-color 0.3s;
        }
        .submit-btn:hover {
            background: #2a5298;
        }
        .footer-links {
            background: white;
            padding: 2rem;
            margin: 2rem 0;
            border-radius: 10px;
            box-shadow: 0 2px 15px rgba(0,0,0,0.1);
        }
        .web-links-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 1rem;
            margin-top: 1rem;
        }
        .web-link {
            background: #f8f9fa;
            padding: 1rem;
            border-radius: 5px;
            border-left: 4px solid #1e3c72;
        }
        .web-link a {
            color: #1e3c72;
            text-decoration: none;
            font-weight: 500;
            transition: color 0.3s;
        }
        .web-link a:hover {
            color: #2a5298;
            text-decoration: underline;
        }
        footer {
            background: #1a1a1a;
            color: white;
            padding: 2rem 0;
            margin-top: 3rem;
        }
        .footer-content {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 2rem;
            margin-bottom: 2rem;
        }
        .copyright {
            text-align: center;
            padding-top: 2rem;
            border-top: 1px solid #333;
            color: #ccc;
        }
        @media (max-width: 768px) {
            .nav-desktop {
                display: none;
            }
            .hamburger {
                display: block;
            }
            .main-content {
                grid-template-columns: 1fr;
            }
            .search-form {
                flex-direction: column;
            }
            .rating-system {
                flex-direction: column;
                align-items: center;
            }
            .header-top {
                flex-direction: column;
                gap: 1rem;
            }
            h1 {
                font-size: 1.8rem;
            }
            h2 {
                font-size: 1.5rem;
            }
            h3 {
                font-size: 1.2rem;
            }
        }
        .fade-in {
            animation: fadeIn 0.8s ease-in;
        }
        @keyframes fadeIn {
            from { opacity: 0; transform: translateY(20px); }
            to { opacity: 1; transform: translateY(0); }
        }
        .hover-lift {
            transition: transform 0.3s ease, box-shadow 0.3s ease;
        }
        .hover-lift:hover {
            transform: translateY(-5px);
            box-shadow: 0 8px 25px rgba(0,0,0,0.15);
        }
        .emoji {
            font-size: 1.2em;
            margin-right: 0.5rem;
        }
        .important {
            background: #ffebee;
            padding: 1rem;
            border-left: 4px solid #f44336;
            margin: 1rem 0;
            border-radius: 0 5px 5px 0;
        }
        .tip {
            background: #e8f5e8;
            padding: 1rem;
            border-left: 4px solid #4caf50;
            margin: 1rem 0;
            border-radius: 0 5px 5px 0;
        }