* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        :root {
            --primary-color: #e53935; 
            --secondary-color: #1e88e5; 
            --accent-color: #ffd600; 
            --dark-color: #1a237e; 
            --light-color: #f5f5f5;
            --text-color: #333333;
            --text-light: #666666;
            --border-radius: 8px;
            --box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
            --transition: all 0.3s ease;
            --max-width: 1200px;
        }
        body {
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
            line-height: 1.6;
            color: var(--text-color);
            background-color: #f9f9f9;
            overflow-x: hidden;
        }
        .container {
            width: 100%;
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 20px;
        }
        header {
            background: linear-gradient(135deg, var(--dark-color) 0%, #283593 100%);
            color: white;
            padding: 1rem 0;
            position: sticky;
            top: 0;
            z-index: 1000;
            box-shadow: var(--box-shadow);
        }
        .header-content {
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        .my-logo {
            font-size: 2rem;
            font-weight: 800;
            color: var(--accent-color);
            text-decoration: none;
            display: flex;
            align-items: center;
            gap: 10px;
            text-transform: uppercase;
            letter-spacing: 1px;
            transition: var(--transition);
        }
        .my-logo:hover {
            color: white;
            transform: scale(1.05);
        }
        .my-logo i {
            font-size: 2.2rem;
        }
        .breadcrumb {
            padding: 15px 0;
            background-color: #e8eaf6;
            font-size: 0.9rem;
            margin-bottom: 20px;
        }
        .breadcrumb ol {
            display: flex;
            flex-wrap: wrap;
            list-style: none;
        }
        .breadcrumb li {
            display: inline;
        }
        .breadcrumb li+li:before {
            content: ">";
            padding: 0 10px;
            color: var(--text-light);
        }
        .breadcrumb a {
            color: var(--secondary-color);
            text-decoration: none;
        }
        .breadcrumb a:hover {
            text-decoration: underline;
        }
        .main-nav {
            display: flex;
            align-items: center;
        }
        .nav-links {
            display: flex;
            list-style: none;
            gap: 1.5rem;
        }
        .nav-links a {
            color: white;
            text-decoration: none;
            font-weight: 600;
            padding: 8px 12px;
            border-radius: var(--border-radius);
            transition: var(--transition);
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .nav-links a:hover,
        .nav-links a.active {
            background-color: rgba(255, 255, 255, 0.15);
            color: var(--accent-color);
        }
        .hamburger {
            display: none;
            flex-direction: column;
            cursor: pointer;
            gap: 4px;
            padding: 10px;
        }
        .hamburger span {
            width: 25px;
            height: 3px;
            background-color: white;
            border-radius: 2px;
            transition: var(--transition);
        }
        .search-container {
            margin: 30px auto;
            max-width: 600px;
            padding: 0 20px;
        }
        .search-form {
            display: flex;
            border-radius: 50px;
            overflow: hidden;
            box-shadow: var(--box-shadow);
        }
        .search-input {
            flex: 1;
            padding: 15px 25px;
            border: none;
            font-size: 1rem;
            outline: none;
        }
        .search-button {
            background-color: var(--primary-color);
            color: white;
            border: none;
            padding: 0 30px;
            cursor: pointer;
            font-size: 1.1rem;
            transition: var(--transition);
        }
        .search-button:hover {
            background-color: #c62828;
        }
        main {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 30px;
            padding: 20px 0;
        }
        @media (max-width: 992px) {
            main {
                grid-template-columns: 1fr;
            }
        }
        .article-content {
            background-color: white;
            border-radius: var(--border-radius);
            padding: 30px;
            box-shadow: var(--box-shadow);
        }
        h1 {
            color: var(--dark-color);
            font-size: 2.5rem;
            margin-bottom: 1.5rem;
            line-height: 1.2;
            border-bottom: 4px solid var(--accent-color);
            padding-bottom: 15px;
        }
        h2 {
            color: var(--secondary-color);
            font-size: 2rem;
            margin: 2.5rem 0 1.5rem;
            padding-bottom: 10px;
            border-bottom: 2px solid #e0e0e0;
        }
        h3 {
            color: var(--primary-color);
            font-size: 1.6rem;
            margin: 2rem 0 1rem;
        }
        h4 {
            color: var(--dark-color);
            font-size: 1.3rem;
            margin: 1.5rem 0 0.8rem;
        }
        p {
            margin-bottom: 1.5rem;
            font-size: 1.05rem;
            text-align: justify;
        }
        .lead {
            font-size: 1.2rem;
            font-weight: 600;
            color: var(--dark-color);
            background-color: #e3f2fd;
            padding: 20px;
            border-left: 5px solid var(--secondary-color);
            border-radius: var(--border-radius);
            margin-bottom: 2rem;
        }
        .highlight {
            background-color: #fff9c4;
            padding: 3px 6px;
            border-radius: 4px;
            font-weight: 600;
        }
        ul, ol {
            margin-bottom: 1.5rem;
            padding-left: 2rem;
        }
        li {
            margin-bottom: 0.8rem;
        }
        .content-link {
            color: var(--secondary-color);
            text-decoration: none;
            font-weight: 600;
            border-bottom: 1px dotted var(--secondary-color);
            transition: var(--transition);
        }
        .content-link:hover {
            color: var(--primary-color);
            border-bottom: 1px solid var(--primary-color);
        }
        .article-image {
            width: 100%;
            max-height: 500px;
            object-fit: cover;
            border-radius: var(--border-radius);
            margin: 2rem 0;
            box-shadow: var(--box-shadow);
            display: block;
        }
        .image-caption {
            text-align: center;
            font-style: italic;
            color: var(--text-light);
            margin-top: -1.5rem;
            margin-bottom: 2rem;
            font-size: 0.95rem;
        }
        .sidebar {
            display: flex;
            flex-direction: column;
            gap: 25px;
        }
        .sidebar-widget {
            background-color: white;
            border-radius: var(--border-radius);
            padding: 25px;
            box-shadow: var(--box-shadow);
        }
        .widget-title {
            color: var(--dark-color);
            font-size: 1.4rem;
            margin-bottom: 1.2rem;
            padding-bottom: 10px;
            border-bottom: 2px solid var(--accent-color);
        }
        .related-links {
            list-style: none;
            padding-left: 0;
        }
        .related-links li {
            margin-bottom: 15px;
            padding-bottom: 15px;
            border-bottom: 1px dashed #e0e0e0;
        }
        .related-links li:last-child {
            border-bottom: none;
        }
        .related-links a {
            color: var(--text-color);
            text-decoration: none;
            display: flex;
            align-items: center;
            gap: 10px;
            transition: var(--transition);
        }
        .related-links a:hover {
            color: var(--primary-color);
            transform: translateX(5px);
        }
        .related-links i {
            color: var(--secondary-color);
        }
        .user-interaction {
            margin-top: 40px;
            padding-top: 30px;
            border-top: 2px solid #e0e0e0;
        }
        .interaction-title {
            color: var(--dark-color);
            font-size: 1.8rem;
            margin-bottom: 1.5rem;
        }
        .form-group {
            margin-bottom: 1.5rem;
        }
        .form-label {
            display: block;
            margin-bottom: 0.5rem;
            font-weight: 600;
            color: var(--dark-color);
        }
        .form-input,
        .form-textarea {
            width: 100%;
            padding: 12px 15px;
            border: 1px solid #ddd;
            border-radius: var(--border-radius);
            font-size: 1rem;
            font-family: inherit;
            transition: var(--transition);
        }
        .form-input:focus,
        .form-textarea:focus {
            border-color: var(--secondary-color);
            outline: none;
            box-shadow: 0 0 0 3px rgba(30, 136, 229, 0.2);
        }
        .form-textarea {
            min-height: 150px;
            resize: vertical;
        }
        .rating-container {
            display: flex;
            align-items: center;
            gap: 15px;
            margin-bottom: 1.5rem;
        }
        .rating-stars {
            display: flex;
            gap: 5px;
        }
        .rating-star {
            font-size: 1.8rem;
            color: #ddd;
            cursor: pointer;
            transition: var(--transition);
        }
        .rating-star:hover,
        .rating-star.active {
            color: var(--accent-color);
        }
        .btn {
            display: inline-block;
            background-color: var(--primary-color);
            color: white;
            padding: 12px 30px;
            border: none;
            border-radius: var(--border-radius);
            font-size: 1rem;
            font-weight: 600;
            cursor: pointer;
            transition: var(--transition);
            text-align: center;
            text-decoration: none;
        }
        .btn:hover {
            background-color: #c62828;
            transform: translateY(-3px);
            box-shadow: 0 6px 12px rgba(0, 0, 0, 0.15);
        }
        .btn-secondary {
            background-color: var(--secondary-color);
        }
        .btn-secondary:hover {
            background-color: #1565c0;
        }
        .comments-section {
            margin-top: 40px;
        }
        .comment {
            background-color: #f9f9f9;
            border-radius: var(--border-radius);
            padding: 20px;
            margin-bottom: 20px;
            border-left: 4px solid var(--secondary-color);
        }
        .comment-header {
            display: flex;
            justify-content: space-between;
            margin-bottom: 10px;
            flex-wrap: wrap;
            gap: 10px;
        }
        .comment-author {
            font-weight: 700;
            color: var(--dark-color);
        }
        .comment-date {
            color: var(--text-light);
            font-size: 0.9rem;
        }
        .comment-rating {
            color: var(--accent-color);
        }
        footer {
            background-color: var(--dark-color);
            color: white;
            padding: 40px 0 20px;
            margin-top: 50px;
        }
        .footer-content {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 30px;
            margin-bottom: 30px;
        }
        .footer-logo {
            font-size: 1.8rem;
            font-weight: 800;
            color: var(--accent-color);
            margin-bottom: 15px;
            display: inline-block;
        }
        .footer-links {
            list-style: none;
        }
        .footer-links li {
            margin-bottom: 10px;
        }
        .footer-links a {
            color: #bbbbbb;
            text-decoration: none;
            transition: var(--transition);
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .footer-links a:hover {
            color: white;
            transform: translateX(5px);
        }
        friend-link {
            display: inline-block;
            background-color: rgba(255, 255, 255, 0.1);
            color: white;
            padding: 8px 15px;
            margin: 5px 10px 5px 0;
            border-radius: var(--border-radius);
            text-decoration: none;
            transition: var(--transition);
            border: 1px solid rgba(255, 255, 255, 0.2);
        }
        friend-link:hover {
            background-color: var(--accent-color);
            color: var(--dark-color);
            transform: translateY(-3px);
        }
        .copyright {
            text-align: center;
            padding-top: 20px;
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            color: #bbbbbb;
            font-size: 0.9rem;
        }
        .last-updated {
            background-color: #e8f5e9;
            padding: 15px;
            border-radius: var(--border-radius);
            margin: 20px 0;
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 0.95rem;
        }
        .last-updated i {
            color: #4caf50;
        }
        .text-center {
            text-align: center;
        }
        .mb-30 {
            margin-bottom: 30px;
        }
        .mt-30 {
            margin-top: 30px;
        }
        @media (max-width: 768px) {
            .header-content {
                flex-wrap: wrap;
            }
            .hamburger {
                display: flex;
            }
            .nav-links {
                display: none;
                width: 100%;
                flex-direction: column;
                background-color: var(--dark-color);
                position: absolute;
                top: 100%;
                left: 0;
                padding: 20px;
                box-shadow: 0 10px 15px rgba(0, 0, 0, 0.1);
                border-top: 2px solid var(--accent-color);
            }
            .nav-links.active {
                display: flex;
            }
            h1 {
                font-size: 2rem;
            }
            h2 {
                font-size: 1.7rem;
            }
            h3 {
                font-size: 1.4rem;
            }
            .article-content {
                padding: 20px;
            }
            .sidebar-widget {
                padding: 20px;
            }
        }
        @keyframes fadeIn {
            from { opacity: 0; transform: translateY(20px); }
            to { opacity: 1; transform: translateY(0); }
        }
        .article-content {
            animation: fadeIn 0.5s ease-out;
        }
        @media print {
            .sidebar, .search-container, .user-interaction, footer, .breadcrumb {
                display: none;
            }
            .article-content {
                box-shadow: none;
                padding: 0;
            }
            body {
                background-color: white;
                color: black;
            }
        }