:root {
            --primary: #dc2626;
            --primary-dark: #991b1b;
            --secondary: #1e40af;
            --dark: #1f2937;
            --light: #f3f4f6;
            --gray: #6b7280;
            --transition: all 0.3s ease;
        }
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        body {
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
            line-height: 1.6;
            color: var(--dark);
            background-color: #fff;
            overflow-x: hidden;
        }
        a {
            text-decoration: none;
            color: var(--secondary);
            transition: var(--transition);
        }
        a:hover {
            color: var(--primary);
        }
        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        header {
            background-color: #fff;
            box-shadow: 0 2px 15px rgba(0,0,0,0.1);
            position: sticky;
            top: 0;
            z-index: 1000;
        }
        .header-top {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 15px 0;
        }
        .logo a {
            font-size: 1.8rem;
            font-weight: 900;
            color: var(--primary);
            text-transform: uppercase;
            letter-spacing: 1px;
        }
        .logo span {
            color: var(--dark);
        }
        .search-form {
            display: flex;
            width: 300px;
        }
        .search-input {
            flex: 1;
            padding: 10px 15px;
            border: 2px solid #e5e7eb;
            border-radius: 4px 0 0 4px;
            font-size: 1rem;
        }
        .search-btn {
            background-color: var(--primary);
            color: white;
            border: none;
            padding: 0 20px;
            border-radius: 0 4px 4px 0;
            cursor: pointer;
            transition: var(--transition);
        }
        .search-btn:hover {
            background-color: var(--primary-dark);
        }
        .hamburger {
            display: none;
            font-size: 1.5rem;
            cursor: pointer;
            color: var(--dark);
        }
        nav ul {
            display: flex;
            list-style: none;
            background-color: var(--dark);
            padding: 0;
            margin: 0;
        }
        nav ul li {
            position: relative;
        }
        nav ul li a {
            display: block;
            padding: 15px 20px;
            color: white;
            font-weight: 500;
        }
        nav ul li a:hover, nav ul li a.active {
            background-color: var(--primary);
        }
        .breadcrumb {
            padding: 15px 0;
            background-color: #f8fafc;
            font-size: 0.9rem;
        }
        .breadcrumb a {
            color: var(--gray);
        }
        .breadcrumb a:hover {
            color: var(--primary);
        }
        .breadcrumb span {
            color: var(--gray);
            margin: 0 8px;
        }
        main {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 30px;
            padding: 30px 0;
        }
        article {
            background-color: #fff;
        }
        .article-header {
            margin-bottom: 30px;
        }
        .article-header h1 {
            font-size: 2.5rem;
            color: var(--dark);
            margin-bottom: 15px;
            line-height: 1.2;
        }
        .meta-info {
            display: flex;
            gap: 20px;
            color: var(--gray);
            font-size: 0.9rem;
            margin-bottom: 20px;
        }
        .featured-img {
            width: 100%;
            height: 400px;
            object-fit: cover;
            border-radius: 8px;
            margin-bottom: 25px;
        }
        .content h2 {
            font-size: 1.8rem;
            color: var(--dark);
            margin: 30px 0 15px;
            padding-bottom: 8px;
            border-bottom: 2px solid var(--primary);
        }
        .content h3 {
            font-size: 1.4rem;
            color: var(--dark);
            margin: 25px 0 12px;
        }
        .content h4 {
            font-size: 1.1rem;
            color: var(--gray);
            margin: 20px 0 10px;
        }
        .content p {
            margin-bottom: 18px;
            text-align: justify;
        }
        .content strong {
            color: var(--dark);
            font-weight: 700;
        }
        .content em {
            color: #4b5563;
        }
        .highlight-box {
            background-color: #fef2f2;
            border-left: 4px solid var(--primary);
            padding: 20px;
            margin: 25px 0;
            border-radius: 0 8px 8px 0;
        }
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            gap: 20px;
            margin: 25px 0;
        }
        .stat-card {
            background-color: #f8fafc;
            padding: 20px;
            border-radius: 8px;
            text-align: center;
            box-shadow: 0 3px 10px rgba(0,0,0,0.05);
        }
        .stat-card h4 {
            color: var(--primary);
            font-size: 2rem;
            margin-bottom: 10px;
        }
        .quote {
            font-size: 1.2rem;
            font-style: italic;
            color: var(--secondary);
            border-left: 3px solid var(--secondary);
            padding-left: 20px;
            margin: 25px 0;
        }
        aside {
            background-color: #f8fafc;
            padding: 20px;
            border-radius: 8px;
            height: fit-content;
        }
        .sidebar-widget {
            margin-bottom: 30px;
        }
        .sidebar-widget h3 {
            color: var(--dark);
            font-size: 1.2rem;
            margin-bottom: 15px;
            padding-bottom: 8px;
            border-bottom: 2px solid var(--primary);
        }
        .sidebar-links {
            list-style: none;
        }
        .sidebar-links li {
            margin-bottom: 10px;
            padding-bottom: 10px;
            border-bottom: 1px solid #e5e7eb;
        }
        .sidebar-links li:last-child {
            border-bottom: none;
        }
        .interaction-section {
            background-color: #f8fafc;
            padding: 30px;
            border-radius: 8px;
            margin: 40px 0;
        }
        .rating-section, .comment-section {
            margin-bottom: 30px;
        }
        .rating-section h3, .comment-section h3 {
            margin-bottom: 15px;
        }
        .star-rating {
            display: flex;
            gap: 5px;
            margin-bottom: 15px;
        }
        .star-rating i {
            font-size: 1.5rem;
            color: #d1d5db;
            cursor: pointer;
            transition: var(--transition);
        }
        .star-rating i:hover, .star-rating i.active {
            color: #fbbf24;
        }
        .rating-form, .comment-form {
            display: flex;
            flex-direction: column;
            gap: 15px;
        }
        .form-group {
            display: flex;
            flex-direction: column;
            gap: 5px;
        }
        .form-group label {
            font-weight: 600;
        }
        .form-control {
            padding: 12px;
            border: 1px solid #d1d5db;
            border-radius: 4px;
            font-size: 1rem;
        }
        .btn-submit {
            background-color: var(--primary);
            color: white;
            border: none;
            padding: 12px 25px;
            border-radius: 4px;
            cursor: pointer;
            font-weight: 600;
            transition: var(--transition);
            align-self: flex-start;
        }
        .btn-submit:hover {
            background-color: var(--primary-dark);
        }
        footer {
            background-color: var(--dark);
            color: white;
            padding: 50px 0 20px;
        }
        .footer-content {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 40px;
            margin-bottom: 40px;
        }
        .footer-logo {
            font-size: 1.8rem;
            font-weight: 900;
            color: white;
            margin-bottom: 15px;
        }
        .footer-logo span {
            color: var(--primary);
        }
        .friend-links {
            display: flex;
            flex-wrap: wrap;
            gap: 15px;
            margin-top: 15px;
        }
        .friend-link {
            background-color: #374151;
            padding: 8px 15px;
            border-radius: 4px;
        }
        .friend-link a {
            color: white;
        }
        .copyright {
            text-align: center;
            padding-top: 20px;
            border-top: 1px solid #374151;
            color: #9ca3af;
            font-size: 0.9rem;
        }
        @media (max-width: 992px) {
            main {
                grid-template-columns: 1fr;
            }
            .search-form {
                width: 250px;
            }
        }
        @media (max-width: 768px) {
            .header-top {
                flex-wrap: wrap;
            }
            .search-form {
                order: 3;
                width: 100%;
                margin-top: 15px;
            }
            .hamburger {
                display: block;
            }
            nav ul {
                display: none;
                flex-direction: column;
                position: absolute;
                top: 100%;
                left: 0;
                width: 100%;
                box-shadow: 0 10px 15px rgba(0,0,0,0.1);
            }
            nav ul.show {
                display: flex;
            }
            nav ul li a {
                padding: 12px 20px;
            }
            .article-header h1 {
                font-size: 2rem;
            }
            .featured-img {
                height: 250px;
            }
            .stats-grid {
                grid-template-columns: 1fr;
            }
        }