* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        :root {
            --primary-color: #0056A7; 
            --secondary-color: #D21034; 
            --accent-color: #F9A01B; 
            --dark-color: #222222;
            --light-color: #F8F9FA;
            --text-color: #333333;
            --gray-color: #6C757D;
            --border-color: #DEE2E6;
            --success-color: #28A745;
            --shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
            --transition: all 0.3s ease;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: 'Segoe UI', system-ui, -apple-system, sans-serif;
            line-height: 1.7;
            color: var(--text-color);
            background-color: var(--light-color);
            overflow-x: hidden;
        }
        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        header {
            background-color: white;
            box-shadow: var(--shadow);
            position: sticky;
            top: 0;
            z-index: 1000;
        }
        .header-container {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 15px 0;
        }
        .logo {
            font-size: 1.8rem;
            font-weight: 800;
            color: var(--primary-color);
            text-decoration: none;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .logo i {
            color: var(--secondary-color);
        }
        .logo span {
            color: var(--accent-color);
        }
        .desktop-nav ul {
            display: flex;
            list-style: none;
            gap: 25px;
        }
        .desktop-nav a {
            text-decoration: none;
            color: var(--dark-color);
            font-weight: 600;
            font-size: 1rem;
            padding: 5px 0;
            position: relative;
            transition: var(--transition);
        }
        .desktop-nav a:hover {
            color: var(--primary-color);
        }
        .desktop-nav a::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 0;
            height: 3px;
            background-color: var(--primary-color);
            transition: var(--transition);
        }
        .desktop-nav a:hover::after {
            width: 100%;
        }
        .mobile-menu-btn {
            display: none;
            background: none;
            border: none;
            font-size: 1.5rem;
            color: var(--dark-color);
            cursor: pointer;
        }
        .mobile-nav {
            display: none;
            position: absolute;
            top: 100%;
            left: 0;
            width: 100%;
            background-color: white;
            box-shadow: 0 5px 15px rgba(0,0,0,0.1);
            padding: 20px;
            flex-direction: column;
            gap: 15px;
        }
        .mobile-nav.active {
            display: flex;
        }
        .mobile-nav a {
            text-decoration: none;
            color: var(--dark-color);
            font-weight: 600;
            padding: 10px 0;
            border-bottom: 1px solid var(--border-color);
        }
        .breadcrumb {
            background-color: #F1F5F9;
            padding: 15px 0;
            margin-bottom: 30px;
        }
        .breadcrumb ol {
            display: flex;
            list-style: none;
            flex-wrap: wrap;
            gap: 10px;
        }
        .breadcrumb li {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 0.9rem;
        }
        .breadcrumb a {
            text-decoration: none;
            color: var(--gray-color);
        }
        .breadcrumb a:hover {
            color: var(--primary-color);
        }
        .breadcrumb .separator {
            color: var(--gray-color);
        }
        .breadcrumb .current {
            color: var(--primary-color);
            font-weight: 600;
        }
        main {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 40px;
            margin: 40px 0;
        }
        article {
            background-color: white;
            border-radius: 10px;
            padding: 40px;
            box-shadow: var(--shadow);
        }
        h1, h2, h3, h4 {
            color: var(--dark-color);
            margin-bottom: 20px;
            line-height: 1.3;
        }
        h1 {
            font-size: 2.8rem;
            color: var(--primary-color);
            border-bottom: 3px solid var(--accent-color);
            padding-bottom: 15px;
            margin-bottom: 30px;
        }
        h2 {
            font-size: 2rem;
            color: var(--secondary-color);
            margin-top: 40px;
            padding-left: 15px;
            border-left: 5px solid var(--primary-color);
        }
        h3 {
            font-size: 1.5rem;
            color: var(--dark-color);
            margin-top: 30px;
        }
        h4 {
            font-size: 1.2rem;
            color: var(--gray-color);
            margin-top: 25px;
        }
        p {
            margin-bottom: 20px;
            font-size: 1.1rem;
            text-align: justify;
        }
        .lead {
            font-size: 1.3rem;
            color: var(--dark-color);
            font-weight: 500;
            background-color: #E8F4FF;
            padding: 25px;
            border-radius: 8px;
            margin-bottom: 30px;
            border-left: 5px solid var(--primary-color);
        }
        .highlight {
            background-color: #FFF9E6;
            padding: 25px;
            border-radius: 8px;
            margin: 25px 0;
            border-left: 5px solid var(--accent-color);
        }
        .highlight h3 {
            margin-top: 0;
            color: var(--dark-color);
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
            margin: 30px auto;
            border-radius: 8px;
            box-shadow: var(--shadow);
        }
        .img-caption {
            text-align: center;
            font-style: italic;
            color: var(--gray-color);
            margin-top: -20px;
            margin-bottom: 30px;
            font-size: 0.95rem;
        }
        a {
            color: var(--primary-color);
            text-decoration: none;
            transition: var(--transition);
        }
        a:hover {
            color: var(--secondary-color);
            text-decoration: underline;
        }
        strong, b {
            color: var(--dark-color);
        }
        em {
            color: var(--gray-color);
        }
        ul, ol {
            margin-left: 25px;
            margin-bottom: 25px;
        }
        li {
            margin-bottom: 10px;
        }
        blockquote {
            border-left: 5px solid var(--accent-color);
            padding: 20px 30px;
            margin: 30px 0;
            background-color: #F8F9FA;
            font-style: italic;
            border-radius: 0 8px 8px 0;
        }
        .data-table {
            width: 100%;
            border-collapse: collapse;
            margin: 30px 0;
            box-shadow: 0 0 10px rgba(0,0,0,0.05);
        }
        .data-table th, .data-table td {
            padding: 15px;
            text-align: left;
            border-bottom: 1px solid var(--border-color);
        }
        .data-table th {
            background-color: var(--primary-color);
            color: white;
            font-weight: 600;
        }
        .data-table tr:nth-child(even) {
            background-color: #F8F9FA;
        }
        .data-table tr:hover {
            background-color: #E8F4FF;
        }
        aside {
            display: flex;
            flex-direction: column;
            gap: 30px;
        }
        .sidebar-widget {
            background-color: white;
            border-radius: 10px;
            padding: 25px;
            box-shadow: var(--shadow);
        }
        .widget-title {
            font-size: 1.3rem;
            color: var(--primary-color);
            margin-bottom: 20px;
            padding-bottom: 10px;
            border-bottom: 2px solid var(--border-color);
        }
        .search-form {
            display: flex;
            margin-top: 15px;
        }
        .search-input {
            flex-grow: 1;
            padding: 12px 15px;
            border: 1px solid var(--border-color);
            border-radius: 5px 0 0 5px;
            font-size: 1rem;
        }
        .search-button {
            background-color: var(--primary-color);
            color: white;
            border: none;
            padding: 0 20px;
            border-radius: 0 5px 5px 0;
            cursor: pointer;
            transition: var(--transition);
        }
        .search-button:hover {
            background-color: var(--secondary-color);
        }
        .rating-container {
            text-align: center;
        }
        .stars {
            font-size: 2rem;
            color: #FFD700;
            margin-bottom: 15px;
            cursor: pointer;
        }
        .stars i {
            margin: 0 2px;
            transition: var(--transition);
        }
        .stars i:hover {
            transform: scale(1.2);
        }
        .rating-form {
            display: flex;
            flex-direction: column;
            gap: 15px;
            margin-top: 20px;
        }
        .rating-form input,
        .rating-form textarea {
            padding: 12px;
            border: 1px solid var(--border-color);
            border-radius: 5px;
            font-family: inherit;
        }
        .rating-form textarea {
            min-height: 100px;
            resize: vertical;
        }
        .rating-form button {
            background-color: var(--accent-color);
            color: white;
            border: none;
            padding: 12px;
            border-radius: 5px;
            font-weight: 600;
            cursor: pointer;
            transition: var(--transition);
        }
        .rating-form button:hover {
            background-color: var(--secondary-color);
        }
        .comments-section {
            margin-top: 60px;
            padding-top: 40px;
            border-top: 2px solid var(--border-color);
        }
        .comments-section h2 {
            margin-top: 0;
        }
        .comment-form {
            background-color: #F8F9FA;
            padding: 30px;
            border-radius: 10px;
            margin-bottom: 40px;
        }
        .form-group {
            margin-bottom: 20px;
        }
        .form-group label {
            display: block;
            margin-bottom: 8px;
            font-weight: 600;
            color: var(--dark-color);
        }
        .form-group input,
        .form-group textarea {
            width: 100%;
            padding: 12px 15px;
            border: 1px solid var(--border-color);
            border-radius: 5px;
            font-family: inherit;
            font-size: 1rem;
        }
        .form-group textarea {
            min-height: 150px;
            resize: vertical;
        }
        .submit-button {
            background-color: var(--primary-color);
            color: white;
            border: none;
            padding: 15px 30px;
            border-radius: 5px;
            font-size: 1.1rem;
            font-weight: 600;
            cursor: pointer;
            transition: var(--transition);
        }
        .submit-button:hover {
            background-color: var(--secondary-color);
            transform: translateY(-2px);
        }
        footer {
            background-color: var(--dark-color);
            color: white;
            padding: 60px 0 30px;
            margin-top: 60px;
        }
        .footer-content {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 40px;
            margin-bottom: 40px;
        }
        .footer-section h3 {
            color: white;
            margin-bottom: 25px;
            font-size: 1.3rem;
        }
        .footer-section ul {
            list-style: none;
            margin-left: 0;
        }
        .footer-section li {
            margin-bottom: 12px;
        }
        .footer-section a {
            color: #CCCCCC;
            text-decoration: none;
            transition: var(--transition);
        }
        .footer-section a:hover {
            color: white;
            padding-left: 5px;
        }
        .friend-links {
            display: flex;
            flex-wrap: wrap;
            gap: 15px;
            margin: 20px 0;
        }
        .friend-links a {
            background-color: rgba(255,255,255,0.1);
            padding: 8px 15px;
            border-radius: 5px;
            color: white;
        }
        .friend-links a:hover {
            background-color: var(--primary-color);
            text-decoration: none;
            padding-left: 15px;
        }
        .copyright {
            text-align: center;
            padding-top: 30px;
            border-top: 1px solid rgba(255,255,255,0.1);
            color: #AAAAAA;
            font-size: 0.9rem;
        }
        @media (max-width: 992px) {
            main {
                grid-template-columns: 1fr;
            }
            .footer-content {
                grid-template-columns: repeat(2, 1fr);
            }
            h1 {
                font-size: 2.4rem;
            }
            h2 {
                font-size: 1.8rem;
            }
        }
        @media (max-width: 768px) {
            .header-container {
                padding: 15px 0;
            }
            .desktop-nav {
                display: none;
            }
            .mobile-menu-btn {
                display: block;
            }
            article {
                padding: 25px;
            }
            .footer-content {
                grid-template-columns: 1fr;
            }
            h1 {
                font-size: 2rem;
            }
            h2 {
                font-size: 1.6rem;
            }
            .lead {
                font-size: 1.1rem;
                padding: 20px;
            }
        }
        @media (max-width: 480px) {
            .container {
                padding: 0 15px;
            }
            article {
                padding: 20px;
            }
            h1 {
                font-size: 1.8rem;
            }
            .breadcrumb li {
                font-size: 0.8rem;
            }
            .comment-form {
                padding: 20px;
            }
        }
        @keyframes fadeIn {
            from { opacity: 0; transform: translateY(20px); }
            to { opacity: 1; transform: translateY(0); }
        }
        article, .sidebar-widget {
            animation: fadeIn 0.8s ease-out;
        }
        .pulse {
            animation: pulse 2s infinite;
        }
        @keyframes pulse {
            0% { transform: scale(1); }
            50% { transform: scale(1.05); }
            100% { transform: scale(1); }
        }
        .tooltip {
            position: relative;
            border-bottom: 1px dotted var(--primary-color);
            cursor: help;
        }
        .tooltip-text {
            visibility: hidden;
            width: 250px;
            background-color: var(--dark-color);
            color: white;
            text-align: center;
            padding: 10px;
            border-radius: 5px;
            position: absolute;
            z-index: 1;
            bottom: 125%;
            left: 50%;
            transform: translateX(-50%);
            opacity: 0;
            transition: opacity 0.3s;
            font-size: 0.9rem;
            font-weight: normal;
        }
        .tooltip:hover .tooltip-text {
            visibility: visible;
            opacity: 1;
        }