* {
            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;
        }
        a {
            text-decoration: none;
            color: #007bff;
        }
        a:hover {
            color: #0056b3;
        }
        img {
            max-width: 100%;
            height: auto;
        }
        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 15px;
        }
        header {
            background: linear-gradient(135deg, #1e3c72, #2a5298);
            color: white;
            padding: 15px 0;
            box-shadow: 0 4px 12px rgba(0,0,0,0.1);
        }
        .header-top {
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        .logo a {
            font-size: 2rem;
            font-weight: bold;
            color: white;
            display: flex;
            align-items: center;
        }
        .logo i {
            margin-right: 10px;
            color: #ffcc00;
        }
        .search-box {
            flex-grow: 1;
            max-width: 400px;
            margin: 0 20px;
        }
        .search-box form {
            display: flex;
        }
        .search-box input {
            flex-grow: 1;
            padding: 10px 15px;
            border: none;
            border-radius: 25px 0 0 25px;
            font-size: 1rem;
        }
        .search-box button {
            padding: 10px 20px;
            background: #ffcc00;
            border: none;
            border-radius: 0 25px 25px 0;
            cursor: pointer;
            color: #333;
            font-weight: bold;
        }
        .search-box button:hover {
            background: #e6b800;
        }
        .hamburger {
            display: none;
            font-size: 1.5rem;
            background: none;
            border: none;
            color: white;
            cursor: pointer;
        }
        nav ul {
            display: flex;
            list-style: none;
            background: rgba(255,255,255,0.1);
            border-radius: 10px;
            padding: 10px;
        }
        nav ul li {
            margin: 0 10px;
        }
        nav ul li a {
            color: white;
            padding: 8px 15px;
            border-radius: 5px;
            transition: background 0.3s;
        }
        nav ul li a:hover {
            background: rgba(255,255,255,0.2);
        }
        .breadcrumb {
            padding: 10px 0;
            font-size: 0.9rem;
            color: #ccc;
        }
        .breadcrumb a {
            color: #ffcc00;
        }
        main {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 30px;
            padding: 30px 0;
        }
        .article-content {
            background: white;
            padding: 30px;
            border-radius: 15px;
            box-shadow: 0 5px 15px rgba(0,0,0,0.05);
        }
        .article-content h1 {
            font-size: 2.5rem;
            margin-bottom: 20px;
            color: #1e3c72;
        }
        .article-content h2 {
            font-size: 1.8rem;
            margin: 25px 0 15px;
            color: #2a5298;
            border-left: 5px solid #ffcc00;
            padding-left: 15px;
        }
        .article-content h3 {
            font-size: 1.4rem;
            margin: 20px 0 10px;
            color: #333;
        }
        .article-content p {
            margin-bottom: 20px;
            text-align: justify;
        }
        .article-content strong {
            color: #1e3c72;
            font-weight: 700;
        }
        .article-content em {
            color: #666;
        }
        .highlight {
            background: #fffacd;
            padding: 15px;
            border-left: 4px solid #ffcc00;
            margin: 20px 0;
            border-radius: 0 10px 10px 0;
        }
        .image-container {
            margin: 25px 0;
            text-align: center;
        }
        .image-container img {
            border-radius: 10px;
            box-shadow: 0 8px 20px rgba(0,0,0,0.1);
            transition: transform 0.3s;
        }
        .image-container img:hover {
            transform: scale(1.02);
        }
        .link-list {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            margin: 20px 0;
            padding: 15px;
            background: #f1f8ff;
            border-radius: 10px;
        }
        .link-list a {
            background: white;
            padding: 8px 15px;
            border-radius: 20px;
            border: 1px solid #007bff;
            transition: all 0.3s;
        }
        .link-list a:hover {
            background: #007bff;
            color: white;
        }
        .sidebar {
            background: white;
            padding: 20px;
            border-radius: 15px;
            box-shadow: 0 5px 15px rgba(0,0,0,0.05);
        }
        .sidebar section {
            margin-bottom: 30px;
        }
        .sidebar h3 {
            font-size: 1.3rem;
            color: #1e3c72;
            margin-bottom: 15px;
            padding-bottom: 10px;
            border-bottom: 2px solid #ffcc00;
        }
        .rating-form, .comment-form {
            display: flex;
            flex-direction: column;
        }
        .rating-form label, .comment-form label {
            margin-bottom: 5px;
            font-weight: bold;
        }
        .rating-form input, .comment-form input, .comment-form textarea {
            padding: 10px;
            margin-bottom: 15px;
            border: 1px solid #ddd;
            border-radius: 5px;
            font-size: 1rem;
        }
        .rating-form button, .comment-form button {
            padding: 12px;
            background: #28a745;
            color: white;
            border: none;
            border-radius: 5px;
            cursor: pointer;
            font-weight: bold;
            transition: background 0.3s;
        }
        .rating-form button:hover, .comment-form button:hover {
            background: #218838;
        }
        .stars {
            display: flex;
            justify-content: space-around;
            margin-bottom: 15px;
        }
        .stars input {
            display: none;
        }
        .stars label {
            font-size: 1.5rem;
            color: #ddd;
            cursor: pointer;
        }
        .stars input:checked ~ label,
        .stars label:hover,
        .stars label:hover ~ label {
            color: #ffcc00;
        }
        footer {
            background: #1e3c72;
            color: white;
            padding: 40px 0 20px;
            margin-top: 40px;
        }
        .footer-content {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 30px;
            margin-bottom: 30px;
        }
        .footer-section h4 {
            font-size: 1.2rem;
            margin-bottom: 20px;
            color: #ffcc00;
        }
        friend-link {
            display: block;
            margin-bottom: 10px;
        }
        friend-link a {
            color: #ccc;
            transition: color 0.3s;
        }
        friend-link a:hover {
            color: #ffcc00;
        }
        .copyright {
            text-align: center;
            padding-top: 20px;
            border-top: 1px solid #2a5298;
            font-size: 0.9rem;
            color: #aaa;
        }
        @media (max-width: 992px) {
            main {
                grid-template-columns: 1fr;
            }
            .header-top {
                flex-wrap: wrap;
            }
            .search-box {
                order: 3;
                max-width: 100%;
                margin: 15px 0 0;
            }
        }
        @media (max-width: 768px) {
            .hamburger {
                display: block;
            }
            nav ul {
                display: none;
                flex-direction: column;
                width: 100%;
                margin-top: 15px;
                background: rgba(0,0,0,0.9);
                border-radius: 10px;
                padding: 15px;
            }
            nav ul.active {
                display: flex;
            }
            nav ul li {
                margin: 5px 0;
            }
            .article-content h1 {
                font-size: 2rem;
            }
            .article-content h2 {
                font-size: 1.5rem;
            }
        }