:root {
            --primary-color: #c41e3a; 
            --secondary-color: #0f172a; 
            --accent-color: #f59e0b; 
            --light-color: #f8fafc;
            --dark-color: #1e293b;
            --gray-color: #64748b;
            --font-heading: 'Segoe UI', system-ui, -apple-system, sans-serif;
            --font-body: 'Inter', 'Roboto', sans-serif;
            --spacing-unit: 8px;
            --border-radius: 12px;
            --shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
            --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        }
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        html {
            scroll-behavior: smooth;
            font-size: 16px;
        }
        body {
            font-family: var(--font-body);
            line-height: 1.8;
            color: var(--dark-color);
            background-color: var(--light-color);
            overflow-x: hidden;
        }
        h1, h2, h3, h4, h5, h6 {
            font-family: var(--font-heading);
            font-weight: 700;
            line-height: 1.3;
            margin-bottom: 1.5rem;
            color: var(--secondary-color);
        }
        h1 {
            font-size: 2.8rem;
            border-left: 6px solid var(--primary-color);
            padding-left: 1.5rem;
            margin-top: 2rem;
        }
        h2 {
            font-size: 2.2rem;
            border-bottom: 3px solid var(--accent-color);
            padding-bottom: 0.5rem;
            margin-top: 3rem;
        }
        h3 {
            font-size: 1.8rem;
            color: var(--primary-color);
            margin-top: 2.5rem;
        }
        p {
            margin-bottom: 1.5rem;
            text-align: justify;
        }
        a {
            color: var(--primary-color);
            text-decoration: none;
            transition: var(--transition);
        }
        a:hover {
            color: var(--accent-color);
            text-decoration: underline;
        }
        .container {
            width: 100%;
            max-width: 1280px;
            margin: 0 auto;
            padding: 0 calc(var(--spacing-unit) * 3);
        }
        .site-header {
            background-color: var(--secondary-color);
            color: var(--light-color);
            padding: 1.5rem 0;
            position: sticky;
            top: 0;
            z-index: 1000;
            box-shadow: var(--shadow);
        }
        .header-content {
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        .logo a {
            font-family: var(--font-heading);
            font-size: 2.2rem;
            font-weight: 900;
            color: var(--light-color);
            text-transform: uppercase;
            letter-spacing: 2px;
            display: flex;
            align-items: center;
        }
        .logo a:hover {
            color: var(--accent-color);
            text-decoration: none;
        }
        .logo i {
            color: var(--primary-color);
            margin-right: 10px;
            font-size: 2.5rem;
        }
        .main-nav ul {
            display: flex;
            list-style: none;
            gap: 2rem;
        }
        .main-nav a {
            color: var(--light-color);
            font-weight: 600;
            font-size: 1.1rem;
            padding: 0.5rem 1rem;
            border-radius: var(--border-radius);
        }
        .main-nav a:hover,
        .main-nav a.active {
            background-color: rgba(255, 255, 255, 0.1);
            text-decoration: none;
            color: var(--accent-color);
        }
        .hamburger {
            display: none;
            background: none;
            border: none;
            color: var(--light-color);
            font-size: 1.8rem;
            cursor: pointer;
        }
        .breadcrumb {
            background-color: #e2e8f0;
            padding: 1rem 0;
            font-size: 0.9rem;
            margin-bottom: 2rem;
        }
        .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: var(--gray-color);
        }
        .search-bar {
            background: linear-gradient(135deg, var(--primary-color), #9d174d);
            padding: 2.5rem 0;
            margin-bottom: 3rem;
            border-radius: var(--border-radius);
            text-align: center;
            color: white;
        }
        .search-bar h2 {
            color: white;
            border: none;
            margin-bottom: 1.5rem;
        }
        .search-form {
            max-width: 700px;
            margin: 0 auto;
            display: flex;
            border-radius: 50px;
            overflow: hidden;
            box-shadow: var(--shadow);
        }
        .search-form input {
            flex-grow: 1;
            padding: 1.2rem 2rem;
            border: none;
            font-size: 1.1rem;
            outline: none;
        }
        .search-form button {
            background-color: var(--accent-color);
            color: var(--secondary-color);
            border: none;
            padding: 0 2.5rem;
            font-weight: 700;
            font-size: 1.1rem;
            cursor: pointer;
            transition: var(--transition);
        }
        .search-form button:hover {
            background-color: #fbbf24;
        }
        .main-content {
            display: grid;
            grid-template-columns: 1fr 320px;
            gap: 3rem;
            margin: 3rem 0;
        }
        @media (max-width: 992px) {
            .main-content {
                grid-template-columns: 1fr;
            }
        }
        .article-content {
            background-color: white;
            padding: 2.5rem;
            border-radius: var(--border-radius);
            box-shadow: var(--shadow);
        }
        .featured-image {
            width: 100%;
            border-radius: var(--border-radius);
            margin: 2rem 0;
            box-shadow: var(--shadow);
        }
        .highlight-box {
            background-color: #fef3c7;
            border-left: 5px solid var(--accent-color);
            padding: 2rem;
            margin: 2.5rem 0;
            border-radius: 0 var(--border-radius) var(--border-radius) 0;
        }
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 2rem;
            margin: 3rem 0;
        }
        .stat-card {
            background: white;
            padding: 2rem;
            border-radius: var(--border-radius);
            box-shadow: var(--shadow);
            text-align: center;
            border-top: 6px solid var(--primary-color);
        }
        .stat-card i {
            font-size: 2.5rem;
            color: var(--primary-color);
            margin-bottom: 1rem;
        }
        .stat-card h4 {
            font-size: 1.5rem;
            margin-bottom: 0.5rem;
        }
        .stat-card p {
            color: var(--gray-color);
            margin-bottom: 0;
        }
        .sidebar {
            display: flex;
            flex-direction: column;
            gap: 2rem;
        }
        .sidebar-widget {
            background-color: white;
            padding: 2rem;
            border-radius: var(--border-radius);
            box-shadow: var(--shadow);
        }
        .sidebar-widget h3 {
            margin-top: 0;
            font-size: 1.5rem;
        }
        .rating-widget form,
        .comment-widget form {
            display: flex;
            flex-direction: column;
            gap: 1.2rem;
        }
        .rating-stars {
            display: flex;
            gap: 0.5rem;
            font-size: 1.8rem;
            color: #d1d5db;
            cursor: pointer;
            margin-bottom: 1rem;
        }
        .rating-stars .star:hover,
        .rating-stars .star.active {
            color: var(--accent-color);
        }
        .form-group input,
        .form-group textarea,
        .form-group select {
            width: 100%;
            padding: 1rem;
            border: 1px solid #cbd5e1;
            border-radius: var(--border-radius);
            font-family: var(--font-body);
            font-size: 1rem;
            transition: var(--transition);
        }
        .form-group input:focus,
        .form-group textarea:focus {
            outline: none;
            border-color: var(--primary-color);
            box-shadow: 0 0 0 3px rgba(196, 30, 58, 0.1);
        }
        .btn {
            background-color: var(--primary-color);
            color: white;
            border: none;
            padding: 1rem 2rem;
            font-weight: 700;
            border-radius: var(--border-radius);
            cursor: pointer;
            transition: var(--transition);
            font-size: 1rem;
            text-align: center;
            display: inline-block;
        }
        .btn:hover {
            background-color: #a61e34;
            text-decoration: none;
            color: white;
            transform: translateY(-3px);
            box-shadow: var(--shadow);
        }
        .btn-accent {
            background-color: var(--accent-color);
            color: var(--secondary-color);
        }
        .btn-accent:hover {
            background-color: #f59e0b;
        }
        .longtail-links {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
            gap: 1.5rem;
            margin: 4rem 0 2rem;
        }
        .web-link {
            background-color: white;
            padding: 1.5rem;
            border-radius: var(--border-radius);
            box-shadow: 0 4px 6px rgba(0,0,0,0.05);
            border-left: 4px solid var(--primary-color);
        }
        .web-link a {
            font-weight: 600;
            color: var(--secondary-color);
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .web-link a:hover {
            color: var(--primary-color);
            text-decoration: none;
        }
        .site-footer {
            background-color: var(--secondary-color);
            color: var(--light-color);
            padding: 4rem 0 2rem;
            margin-top: 4rem;
        }
        .footer-content {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 3rem;
            margin-bottom: 3rem;
        }
        .footer-logo {
            font-size: 2rem;
            font-weight: 900;
            margin-bottom: 1rem;
            color: var(--light-color);
        }
        .footer-links h4 {
            color: var(--accent-color);
            margin-bottom: 1.5rem;
            font-size: 1.3rem;
        }
        .footer-links ul {
            list-style: none;
        }
        .footer-links li {
            margin-bottom: 0.8rem;
        }
        .footer-links a {
            color: #cbd5e1;
        }
        .footer-links a:hover {
            color: var(--accent-color);
        }
        .copyright {
            text-align: center;
            padding-top: 2rem;
            border-top: 1px solid #334155;
            color: #94a3b8;
            font-size: 0.9rem;
        }
        @media (max-width: 768px) {
            html {
                font-size: 14px;
            }
            h1 {
                font-size: 2.2rem;
            }
            h2 {
                font-size: 1.8rem;
            }
            .header-content {
                flex-wrap: wrap;
            }
            .main-nav {
                width: 100%;
                order: 3;
                margin-top: 1.5rem;
                display: none;
            }
            .main-nav.active {
                display: block;
            }
            .main-nav ul {
                flex-direction: column;
                gap: 1rem;
            }
            .hamburger {
                display: block;
            }
            .search-form {
                flex-direction: column;
                border-radius: var(--border-radius);
            }
            .search-form input,
            .search-form button {
                width: 100%;
                border-radius: 0;
                padding: 1rem;
            }
            .article-content {
                padding: 1.5rem;
            }
        }
        .fade-in {
            animation: fadeIn 0.8s ease-out;
        }
        @keyframes fadeIn {
            from { opacity: 0; transform: translateY(20px); }
            to { opacity: 1; transform: translateY(0); }
        }
        .pulse {
            animation: pulse 2s infinite;
        }
        @keyframes pulse {
            0% { transform: scale(1); }
            50% { transform: scale(1.05); }
            100% { transform: scale(1); }
        }