:root {
            --primary: #fa4454;
            --primary-dark: #d33c4a;
            --secondary: #0f1923;
            --accent: #ff4655;
            --light-bg: #f8f9fa;
            --dark-bg: #0f1923;
            --text-dark: #333;
            --text-light: #ece8e1;
            --border-color: #ddd;
            --shadow: 0 4px 12px rgba(15, 25, 35, 0.1);
            --transition: all 0.3s ease;
        }
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
            line-height: 1.6;
            color: var(--text-dark);
            background-color: var(--light-bg);
            overflow-x: hidden;
        }
        a {
            text-decoration: none;
            color: var(--primary);
            transition: var(--transition);
        }
        a:hover {
            color: var(--primary-dark);
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        header {
            background-color: var(--secondary);
            color: var(--text-light);
            box-shadow: var(--shadow);
            position: sticky;
            top: 0;
            z-index: 1000;
        }
        .header-container {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 15px 20px;
        }
        .logo a {
            font-size: 1.8rem;
            font-weight: 700;
            color: var(--accent);
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .logo i {
            color: var(--primary);
        }
        .desktop-nav ul {
            display: flex;
            list-style: none;
            gap: 25px;
        }
        .desktop-nav a {
            color: var(--text-light);
            font-weight: 500;
            padding: 5px 0;
            border-bottom: 2px solid transparent;
        }
        .desktop-nav a:hover,
        .desktop-nav a.active {
            color: var(--accent);
            border-bottom-color: var(--accent);
        }
        .hamburger {
            display: none;
            font-size: 1.5rem;
            background: none;
            border: none;
            color: var(--text-light);
            cursor: pointer;
        }
        .mobile-nav {
            display: none;
            flex-direction: column;
            background-color: var(--secondary);
            padding: 20px;
            position: absolute;
            top: 100%;
            left: 0;
            width: 100%;
            box-shadow: var(--shadow);
        }
        .mobile-nav.active {
            display: flex;
        }
        .mobile-nav ul {
            list-style: none;
        }
        .mobile-nav li {
            margin-bottom: 15px;
        }
        .mobile-nav a {
            color: var(--text-light);
            font-size: 1.1rem;
            display: block;
            padding: 10px;
            border-radius: 5px;
        }
        .mobile-nav a:hover {
            background-color: rgba(255, 70, 85, 0.1);
            color: var(--accent);
        }
        .breadcrumb {
            background-color: #fff;
            padding: 12px 20px;
            border-bottom: 1px solid var(--border-color);
            font-size: 0.9rem;
        }
        .breadcrumb a {
            color: #666;
        }
        .breadcrumb span {
            color: #999;
        }
        main {
            padding: 30px 0;
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 30px;
        }
        .article-content {
            background-color: #fff;
            padding: 30px;
            border-radius: 10px;
            box-shadow: var(--shadow);
        }
        .article-meta {
            display: flex;
            justify-content: space-between;
            align-items: center;
            margin-bottom: 20px;
            padding-bottom: 15px;
            border-bottom: 1px solid var(--border-color);
            font-size: 0.9rem;
            color: #666;
        }
        .author {
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .author img {
            width: 40px;
            height: 40px;
            border-radius: 50%;
        }
        h1 {
            font-size: 2.5rem;
            color: var(--secondary);
            margin-bottom: 20px;
            line-height: 1.2;
        }
        h2 {
            font-size: 1.8rem;
            color: var(--secondary);
            margin: 30px 0 15px;
            padding-bottom: 10px;
            border-bottom: 2px solid var(--primary);
        }
        h3 {
            font-size: 1.4rem;
            color: var(--secondary);
            margin: 25px 0 10px;
        }
        p {
            margin-bottom: 18px;
            text-align: justify;
        }
        .lead {
            font-size: 1.2rem;
            font-weight: 500;
            color: #555;
            background-color: #f0f8ff;
            padding: 20px;
            border-left: 4px solid var(--primary);
            border-radius: 0 5px 5px 0;
            margin-bottom: 25px;
        }
        .highlight {
            background-color: #fff9e6;
            padding: 20px;
            border-radius: 8px;
            border-left: 5px solid #ffc107;
            margin: 25px 0;
        }
        .highlight strong {
            color: #d35400;
        }
        blockquote {
            font-style: italic;
            color: #555;
            border-left: 4px solid var(--accent);
            padding-left: 20px;
            margin: 25px 0;
        }
        ul, ol {
            margin-left: 25px;
            margin-bottom: 20px;
        }
        li {
            margin-bottom: 8px;
        }
        .img-container {
            margin: 30px 0;
            text-align: center;
        }
        .img-container img {
            border-radius: 8px;
            box-shadow: var(--shadow);
            max-height: 500px;
            object-fit: cover;
        }
        .caption {
            font-size: 0.9rem;
            color: #666;
            margin-top: 10px;
            font-style: italic;
        }
        .data-table {
            width: 100%;
            border-collapse: collapse;
            margin: 25px 0;
            box-shadow: 0 0 10px rgba(0,0,0,0.05);
        }
        .data-table th, .data-table td {
            border: 1px solid var(--border-color);
            padding: 12px 15px;
            text-align: left;
        }
        .data-table th {
            background-color: var(--secondary);
            color: white;
            font-weight: 600;
        }
        .data-table tr:nth-child(even) {
            background-color: #f9f9f9;
        }
        .data-table tr:hover {
            background-color: #f1f1f1;
        }
        .key-term {
            font-weight: bold;
            color: var(--primary);
        }
        .interactive-box {
            background: linear-gradient(135deg, #0f1923 0%, #1a2a3a 100%);
            color: white;
            padding: 25px;
            border-radius: 10px;
            margin: 30px 0;
        }
        .interactive-box h3 {
            color: var(--accent);
            margin-top: 0;
        }
        .interactive-box ul {
            list-style: none;
            margin-left: 0;
        }
        .interactive-box li {
            margin-bottom: 12px;
            padding-left: 25px;
            position: relative;
        }
        .interactive-box li:before {
            content: '✓';
            color: #4CAF50;
            position: absolute;
            left: 0;
            font-weight: bold;
        }
        aside {
            display: flex;
            flex-direction: column;
            gap: 25px;
        }
        .sidebar-widget {
            background-color: #fff;
            padding: 25px;
            border-radius: 10px;
            box-shadow: var(--shadow);
        }
        .sidebar-widget h3 {
            margin-top: 0;
            margin-bottom: 20px;
            padding-bottom: 10px;
            border-bottom: 2px solid var(--primary);
        }
        .search-form {
            display: flex;
        }
        .search-form input {
            flex-grow: 1;
            padding: 12px 15px;
            border: 1px solid var(--border-color);
            border-right: none;
            border-radius: 5px 0 0 5px;
            font-size: 1rem;
        }
        .search-form button {
            background-color: var(--primary);
            color: white;
            border: none;
            padding: 0 20px;
            border-radius: 0 5px 5px 0;
            cursor: pointer;
            transition: var(--transition);
        }
        .search-form button:hover {
            background-color: var(--primary-dark);
        }
        .rating-widget {
            text-align: center;
        }
        .stars {
            font-size: 2rem;
            color: #ffc107;
            margin: 15px 0;
        }
        .stars i {
            cursor: pointer;
            transition: var(--transition);
        }
        .stars i:hover {
            transform: scale(1.2);
        }
        .rating-result {
            font-size: 1.2rem;
            font-weight: bold;
            color: var(--secondary);
            margin-top: 10px;
        }
        .comment-form textarea {
            width: 100%;
            padding: 15px;
            border: 1px solid var(--border-color);
            border-radius: 5px;
            font-family: inherit;
            font-size: 1rem;
            margin-bottom: 15px;
            resize: vertical;
            min-height: 120px;
        }
        .comment-form input[type="text"],
        .comment-form input[type="email"] {
            width: 100%;
            padding: 12px 15px;
            border: 1px solid var(--border-color);
            border-radius: 5px;
            margin-bottom: 15px;
            font-size: 1rem;
        }
        .comment-form button {
            background-color: var(--primary);
            color: white;
            border: none;
            padding: 12px 25px;
            border-radius: 5px;
            cursor: pointer;
            font-size: 1rem;
            font-weight: 600;
            transition: var(--transition);
        }
        .comment-form button:hover {
            background-color: var(--primary-dark);
        }
        .related-links ul {
            list-style: none;
            margin-left: 0;
        }
        .related-links li {
            margin-bottom: 12px;
            padding-bottom: 12px;
            border-bottom: 1px dashed var(--border-color);
        }
        .related-links li:last-child {
            border-bottom: none;
        }
        .related-links a {
            color: var(--secondary);
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .related-links a:hover {
            color: var(--primary);
        }
        .internal-links {
            background-color: #fff;
            padding: 40px 20px;
            margin-top: 40px;
            border-top: 1px solid var(--border-color);
        }
        .internal-links .container {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
            gap: 20px;
        }
        .web-link {
            padding: 15px;
            background-color: #f9f9f9;
            border-radius: 5px;
            transition: var(--transition);
        }
        .web-link:hover {
            background-color: #e9e9e9;
            transform: translateY(-3px);
        }
        .web-link a {
            color: var(--secondary);
            font-weight: 500;
            display: block;
        }
        footer {
            background-color: var(--secondary);
            color: var(--text-light);
            padding: 40px 0 20px;
        }
        .footer-content {
            display: flex;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 30px;
            margin-bottom: 30px;
        }
        .footer-section {
            flex: 1;
            min-width: 250px;
        }
        .footer-section h3 {
            color: var(--accent);
            margin-bottom: 20px;
            font-size: 1.3rem;
        }
        .footer-links ul {
            list-style: none;
        }
        .footer-links li {
            margin-bottom: 10px;
        }
        .footer-links a {
            color: #ccc;
        }
        .footer-links a:hover {
            color: var(--accent);
        }
        .copyright {
            text-align: center;
            padding-top: 20px;
            border-top: 1px solid rgba(255,255,255,0.1);
            color: #aaa;
            font-size: 0.9rem;
        }
        @media (max-width: 992px) {
            main {
                grid-template-columns: 1fr;
            }
            h1 {
                font-size: 2.2rem;
            }
            .header-container {
                padding: 12px 20px;
            }
        }
        @media (max-width: 768px) {
            .desktop-nav {
                display: none;
            }
            .hamburger {
                display: block;
            }
            h1 {
                font-size: 1.8rem;
            }
            h2 {
                font-size: 1.5rem;
            }
            .article-content {
                padding: 20px;
            }
            .footer-content {
                flex-direction: column;
            }
        }
        @media (max-width: 480px) {
            .container {
                padding: 0 15px;
            }
            h1 {
                font-size: 1.6rem;
            }
            .article-meta {
                flex-direction: column;
                align-items: flex-start;
                gap: 10px;
            }
            .stars {
                font-size: 1.5rem;
            }
        }
        @keyframes fadeIn {
            from { opacity: 0; transform: translateY(20px); }
            to { opacity: 1; transform: translateY(0); }
        }
        .article-content, .sidebar-widget {
            animation: fadeIn 0.5s ease-out;
        }
        .text-center { text-align: center; }
        .mb-20 { margin-bottom: 20px; }
        .mt-30 { margin-top: 30px; }
        .emoji { font-size: 1.2em; }