* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
        }
        :root {
            --primary-color: #1a5276;
            --secondary-color: #e74c3c;
            --accent-color: #f39c12;
            --light-color: #f8f9fa;
            --dark-color: #2c3e50;
            --text-color: #333;
            --border-radius: 8px;
            --box-shadow: 0 4px 12px rgba(0,0,0,0.08);
            --transition: all 0.3s ease;
        }
        body {
            background-color: #f5f7fa;
            color: var(--text-color);
            line-height: 1.6;
            display: flex;
            flex-direction: column;
            min-height: 100vh;
        }
        a {
            color: var(--primary-color);
            text-decoration: none;
            transition: var(--transition);
        }
        a:hover {
            color: var(--secondary-color);
        }
        img {
            max-width: 100%;
            height: auto;
            border-radius: var(--border-radius);
        }
        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        header {
            background: linear-gradient(135deg, var(--primary-color), #154360);
            color: white;
            padding: 1rem 0;
            box-shadow: 0 2px 10px rgba(0,0,0,0.1);
            position: sticky;
            top: 0;
            z-index: 1000;
        }
        .header-content {
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        .logo {
            font-size: 1.8rem;
            font-weight: 800;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .logo a {
            color: white;
        }
        .logo i {
            color: var(--accent-color);
        }
        .nav-desktop ul {
            display: flex;
            list-style: none;
            gap: 1.5rem;
        }
        .nav-desktop a {
            color: white;
            font-weight: 500;
            padding: 0.5rem 0.8rem;
            border-radius: 4px;
        }
        .nav-desktop a:hover {
            background-color: rgba(255,255,255,0.15);
        }
        .hamburger {
            display: none;
            font-size: 1.5rem;
            background: none;
            border: none;
            color: white;
            cursor: pointer;
        }
        .nav-mobile {
            display: none;
            position: absolute;
            top: 100%;
            left: 0;
            width: 100%;
            background-color: var(--primary-color);
            flex-direction: column;
            padding: 1rem;
            box-shadow: 0 5px 10px rgba(0,0,0,0.1);
        }
        .nav-mobile.active {
            display: flex;
        }
        .nav-mobile ul {
            list-style: none;
            width: 100%;
        }
        .nav-mobile li {
            margin-bottom: 0.8rem;
        }
        .nav-mobile a {
            color: white;
            display: block;
            padding: 0.8rem;
            border-radius: 4px;
            border-left: 3px solid transparent;
        }
        .nav-mobile a:hover {
            background-color: rgba(255,255,255,0.1);
            border-left-color: var(--accent-color);
        }
        .breadcrumb {
            padding: 1rem 0;
            background-color: #e9ecef;
            font-size: 0.9rem;
        }
        .breadcrumb ol {
            display: flex;
            list-style: none;
            flex-wrap: wrap;
            gap: 0.5rem;
        }
        .breadcrumb li:not(:last-child)::after {
            content: "›";
            margin-left: 0.5rem;
            color: #6c757d;
        }
        .breadcrumb a {
            color: var(--primary-color);
        }
        main {
            flex: 1;
            padding: 2rem 0;
        }
        .article-header {
            margin-bottom: 2.5rem;
            text-align: center;
        }
        h1 {
            color: var(--primary-color);
            font-size: 2.5rem;
            margin-bottom: 1rem;
            line-height: 1.2;
        }
        .article-meta {
            display: flex;
            justify-content: center;
            gap: 1.5rem;
            color: #666;
            font-size: 0.95rem;
            margin-bottom: 1.5rem;
        }
        .article-meta span {
            display: flex;
            align-items: center;
            gap: 0.3rem;
        }
        .featured-image {
            margin: 2rem 0 3rem;
            position: relative;
            overflow: hidden;
            border-radius: var(--border-radius);
            box-shadow: var(--box-shadow);
        }
        .featured-image figcaption {
            padding: 1rem;
            background-color: rgba(0,0,0,0.7);
            color: white;
            font-style: italic;
            font-size: 0.9rem;
            text-align: center;
        }
        .content-grid {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 2.5rem;
        }
        @media (max-width: 992px) {
            .content-grid {
                grid-template-columns: 1fr;
            }
        }
        .article-content h2 {
            color: var(--primary-color);
            font-size: 1.8rem;
            margin: 2.5rem 0 1.2rem;
            padding-bottom: 0.5rem;
            border-bottom: 2px solid var(--accent-color);
        }
        .article-content h3 {
            color: var(--dark-color);
            font-size: 1.4rem;
            margin: 2rem 0 1rem;
        }
        .article-content p {
            margin-bottom: 1.5rem;
            text-align: justify;
        }
        .article-content ul, .article-content ol {
            margin-bottom: 1.5rem;
            padding-left: 1.5rem;
        }
        .article-content li {
            margin-bottom: 0.5rem;
        }
        .highlight-box {
            background-color: #e8f4fc;
            border-left: 4px solid var(--primary-color);
            padding: 1.5rem;
            margin: 2rem 0;
            border-radius: 0 var(--border-radius) var(--border-radius) 0;
        }
        .inline-link {
            font-weight: 600;
            color: var(--secondary-color);
            border-bottom: 1px dotted var(--secondary-color);
        }
        .inline-link:hover {
            border-bottom-style: solid;
        }
        .sidebar-widget {
            background-color: white;
            border-radius: var(--border-radius);
            padding: 1.5rem;
            margin-bottom: 2rem;
            box-shadow: var(--box-shadow);
        }
        .sidebar-widget h3 {
            color: var(--primary-color);
            font-size: 1.3rem;
            margin-bottom: 1.2rem;
            padding-bottom: 0.5rem;
            border-bottom: 1px solid #eee;
        }
        .search-form {
            display: flex;
        }
        .search-form input {
            flex: 1;
            padding: 0.8rem 1rem;
            border: 1px solid #ddd;
            border-right: none;
            border-radius: var(--border-radius) 0 0 var(--border-radius);
            font-size: 1rem;
        }
        .search-form button {
            background-color: var(--primary-color);
            color: white;
            border: none;
            padding: 0 1.2rem;
            border-radius: 0 var(--border-radius) var(--border-radius) 0;
            cursor: pointer;
            transition: var(--transition);
        }
        .search-form button:hover {
            background-color: var(--secondary-color);
        }
        .related-links ul {
            list-style: none;
        }
        .related-links li {
            margin-bottom: 0.8rem;
            padding-bottom: 0.8rem;
            border-bottom: 1px dashed #eee;
        }
        .related-links li:last-child {
            margin-bottom: 0;
            padding-bottom: 0;
            border-bottom: none;
        }
        .related-links a {
            display: flex;
            align-items: center;
            gap: 0.5rem;
        }
        .related-links i {
            color: var(--accent-color);
            font-size: 0.8rem;
        }
        .interactive-section {
            background-color: white;
            border-radius: var(--border-radius);
            padding: 2rem;
            margin: 3rem 0;
            box-shadow: var(--box-shadow);
        }
        .interactive-section h2 {
            color: var(--primary-color);
            margin-bottom: 1.5rem;
            text-align: center;
        }
        .comment-form, .rating-form {
            display: grid;
            gap: 1.2rem;
            margin-top: 1.5rem;
        }
        .form-group {
            display: flex;
            flex-direction: column;
        }
        .form-group label {
            margin-bottom: 0.5rem;
            font-weight: 600;
            color: var(--dark-color);
        }
        .form-control {
            padding: 0.8rem 1rem;
            border: 1px solid #ddd;
            border-radius: var(--border-radius);
            font-size: 1rem;
            transition: var(--transition);
        }
        .form-control:focus {
            outline: none;
            border-color: var(--primary-color);
            box-shadow: 0 0 0 3px rgba(26, 82, 118, 0.1);
        }
        textarea.form-control {
            min-height: 120px;
            resize: vertical;
        }
        .star-rating {
            display: flex;
            gap: 0.5rem;
            font-size: 1.8rem;
            margin: 0.5rem 0;
        }
        .star-rating label {
            cursor: pointer;
            color: #ddd;
            transition: var(--transition);
        }
        .star-rating input {
            display: none;
        }
        .star-rating label:hover,
        .star-rating label:hover ~ label,
        .star-rating input:checked ~ label {
            color: var(--accent-color);
        }
        .btn-submit {
            background-color: var(--primary-color);
            color: white;
            border: none;
            padding: 1rem 2rem;
            border-radius: var(--border-radius);
            font-size: 1rem;
            font-weight: 600;
            cursor: pointer;
            transition: var(--transition);
            justify-self: start;
        }
        .btn-submit:hover {
            background-color: var(--secondary-color);
            transform: translateY(-2px);
        }
        footer {
            background-color: var(--dark-color);
            color: white;
            padding: 3rem 0 1.5rem;
            margin-top: auto;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 2rem;
            margin-bottom: 2rem;
        }
        .footer-section h3 {
            color: var(--accent-color);
            font-size: 1.3rem;
            margin-bottom: 1.5rem;
        }
        .footer-links ul {
            list-style: none;
        }
        .footer-links li {
            margin-bottom: 0.8rem;
        }
        .footer-links a {
            color: #ddd;
        }
        .footer-links a:hover {
            color: white;
            padding-left: 5px;
        }
        friend-link {
            display: block;
            background-color: rgba(255,255,255,0.05);
            padding: 1rem;
            border-radius: var(--border-radius);
            margin-top: 1rem;
        }
        .copyright {
            text-align: center;
            padding-top: 1.5rem;
            border-top: 1px solid rgba(255,255,255,0.1);
            font-size: 0.9rem;
            color: #aaa;
        }
        @media (max-width: 768px) {
            .hamburger {
                display: block;
            }
            .nav-desktop {
                display: none;
            }
            h1 {
                font-size: 2rem;
            }
            .content-grid {
                gap: 2rem;
            }
            .interactive-section {
                padding: 1.5rem;
            }
        }
        @media (max-width: 480px) {
            .container {
                padding: 0 15px;
            }
            .article-meta {
                flex-direction: column;
                align-items: center;
                gap: 0.5rem;
            }
            .footer-grid {
                grid-template-columns: 1fr;
            }
        }