* {
            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;
            flex-wrap: wrap;
        }
        .logo {
            font-size: 1.8rem;
            font-weight: bold;
            text-decoration: none;
            color: white;
        }
        .logo:hover {
            color: #ffd700;
        }
        .search-form {
            display: flex;
            gap: 10px;
        }
        .search-input {
            padding: 10px 15px;
            border: none;
            border-radius: 25px;
            width: 300px;
            font-size: 1rem;
        }
        .search-btn {
            background: #ff6b35;
            color: white;
            border: none;
            padding: 10px 20px;
            border-radius: 25px;
            cursor: pointer;
            transition: background 0.3s;
        }
        .search-btn:hover {
            background: #e55a2b;
        }
        nav {
            background: #2a5298;
            margin-top: 1rem;
        }
        .nav-desktop {
            display: flex;
            list-style: none;
            justify-content: center;
        }
        .nav-desktop li {
            position: relative;
        }
        .nav-desktop a {
            color: white;
            text-decoration: none;
            padding: 15px 25px;
            display: block;
            transition: background 0.3s;
        }
        .nav-desktop a:hover {
            background: #1e3c72;
        }
        .hamburger {
            display: none;
            background: none;
            border: none;
            color: white;
            font-size: 1.5rem;
            cursor: pointer;
        }
        .nav-mobile {
            display: none;
            list-style: none;
            background: #1e3c72;
            position: absolute;
            width: 100%;
            z-index: 1000;
        }
        .nav-mobile.active {
            display: block;
        }
        .nav-mobile a {
            color: white;
            text-decoration: none;
            padding: 15px 20px;
            display: block;
            border-bottom: 1px solid #2a5298;
        }
        .nav-mobile a:hover {
            background: #2a5298;
        }
        .breadcrumb {
            background: #e9ecef;
            padding: 10px 0;
            margin-bottom: 2rem;
        }
        .breadcrumb ol {
            list-style: none;
            display: flex;
            gap: 10px;
        }
        .breadcrumb li:not(:last-child)::after {
            content: "›";
            margin-left: 10px;
        }
        .breadcrumb a {
            color: #495057;
            text-decoration: none;
        }
        .breadcrumb a:hover {
            color: #1e3c72;
        }
        main {
            background: white;
            padding: 2rem;
            border-radius: 10px;
            box-shadow: 0 2px 20px rgba(0,0,0,0.1);
            margin-bottom: 2rem;
        }
        .article-header {
            text-align: center;
            margin-bottom: 2rem;
            padding-bottom: 1rem;
            border-bottom: 3px solid #ff6b35;
        }
        .article-header h1 {
            font-size: 2.5rem;
            color: #1e3c72;
            margin-bottom: 1rem;
            line-height: 1.2;
        }
        .article-meta {
            color: #666;
            font-size: 0.9rem;
            display: flex;
            justify-content: center;
            gap: 20px;
            flex-wrap: wrap;
        }
        .article-content {
            font-size: 1.1rem;
            line-height: 1.8;
        }
        .article-content h2 {
            color: #1e3c72;
            margin: 2rem 0 1rem 0;
            padding-bottom: 0.5rem;
            border-bottom: 2px solid #e9ecef;
        }
        .article-content h3 {
            color: #2a5298;
            margin: 1.5rem 0 1rem 0;
        }
        .article-content p {
            margin-bottom: 1.5rem;
            text-align: justify;
        }
        .article-content strong {
            color: #ff6b35;
            font-weight: 600;
        }
        .highlight-box {
            background: linear-gradient(135deg, #fff3cd 0%, #ffeaa7 100%);
            border-left: 4px solid #ffc107;
            padding: 1.5rem;
            margin: 2rem 0;
            border-radius: 0 8px 8px 0;
        }
        .feature-image {
            width: 100%;
            max-width: 800px;
            height: auto;
            border-radius: 10px;
            margin: 2rem auto;
            display: block;
            box-shadow: 0 4px 15px rgba(0,0,0,0.1);
        }
        .interactive-section {
            background: #f8f9fa;
            padding: 2rem;
            border-radius: 10px;
            margin: 2rem 0;
            border: 2px solid #e9ecef;
        }
        .rating-system {
            text-align: center;
            margin: 2rem 0;
        }
        .stars {
            display: flex;
            justify-content: center;
            gap: 5px;
            margin: 1rem 0;
        }
        .star {
            font-size: 2rem;
            color: #ddd;
            cursor: pointer;
            transition: color 0.2s;
        }
        .star:hover,
        .star.active {
            color: #ffc107;
        }
        .comment-form {
            background: white;
            padding: 2rem;
            border-radius: 10px;
            box-shadow: 0 2px 10px rgba(0,0,0,0.1);
        }
        .form-group {
            margin-bottom: 1.5rem;
        }
        .form-group label {
            display: block;
            margin-bottom: 0.5rem;
            font-weight: 600;
            color: #495057;
        }
        .form-control {
            width: 100%;
            padding: 12px 15px;
            border: 2px solid #e9ecef;
            border-radius: 8px;
            font-size: 1rem;
            transition: border-color 0.3s;
        }
        .form-control:focus {
            outline: none;
            border-color: #1e3c72;
        }
        .submit-btn {
            background: linear-gradient(135deg, #1e3c72 0%, #2a5298 100%);
            color: white;
            border: none;
            padding: 12px 30px;
            border-radius: 25px;
            font-size: 1rem;
            cursor: pointer;
            transition: transform 0.3s;
        }
        .submit-btn:hover {
            transform: translateY(-2px);
        }
        .web-links {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 1rem;
            margin: 2rem 0;
        }
        .web-link {
            background: white;
            padding: 1rem;
            border-radius: 8px;
            box-shadow: 0 2px 5px rgba(0,0,0,0.1);
            transition: transform 0.3s;
        }
        .web-link:hover {
            transform: translateY(-3px);
        }
        .web-link a {
            color: #1e3c72;
            text-decoration: none;
            font-weight: 500;
        }
        .web-link a:hover {
            color: #ff6b35;
        }
        footer {
            background: #1a1a1a;
            color: white;
            padding: 3rem 0 1rem 0;
        }
        .footer-content {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 2rem;
            margin-bottom: 2rem;
        }
        .footer-section h3 {
            color: #ff6b35;
            margin-bottom: 1rem;
            font-size: 1.2rem;
        }
        .footer-section a {
            color: #ccc;
            text-decoration: none;
            display: block;
            margin-bottom: 0.5rem;
            transition: color 0.3s;
        }
        .footer-section a:hover {
            color: #ff6b35;
        }
        .copyright {
            text-align: center;
            padding-top: 2rem;
            border-top: 1px solid #333;
            color: #999;
            font-size: 0.9rem;
        }
        @media (max-width: 768px) {
            .header-top {
                flex-direction: column;
                gap: 1rem;
            }
            .search-input {
                width: 100%;
            }
            .nav-desktop {
                display: none;
            }
            .hamburger {
                display: block;
            }
            .article-header h1 {
                font-size: 2rem;
            }
            .article-content {
                font-size: 1rem;
            }
            main {
                padding: 1rem;
            }
            .web-links {
                grid-template-columns: 1fr;
            }
        }
        @media (max-width: 480px) {
            .container {
                padding: 0 10px;
            }
            .article-header h1 {
                font-size: 1.5rem;
            }
            .stars {
                gap: 2px;
            }
            .star {
                font-size: 1.5rem;
            }
        }
        @keyframes fadeIn {
            from { opacity: 0; transform: translateY(20px); }
            to { opacity: 1; transform: translateY(0); }
        }
        .fade-in {
            animation: fadeIn 0.6s ease-out;
        }
        .text-center { text-align: center; }
        .mb-2 { margin-bottom: 2rem; }
        .mt-2 { margin-top: 2rem; }
        .py-2 { padding: 2rem 0; }