* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        :root {
            --primary-color: #1a5fb4;
            --secondary-color: #e95420;
            --accent-color: #ff9800;
            --dark-color: #2c2c2c;
            --light-color: #f8f8f8;
            --text-color: #333;
            --text-light: #666;
            --border-color: #ddd;
            --shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
            --transition: all 0.3s ease;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
            line-height: 1.7;
            color: var(--text-color);
            background-color: #fff;
            overflow-x: hidden;
        }
        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        h1, h2, h3, h4 {
            color: var(--dark-color);
            margin-bottom: 1rem;
            line-height: 1.3;
            font-weight: 700;
        }
        h1 {
            font-size: 2.5rem;
            margin-top: 1.5rem;
        }
        h2 {
            font-size: 2rem;
            border-left: 5px solid var(--primary-color);
            padding-left: 15px;
            margin-top: 2.5rem;
        }
        h3 {
            font-size: 1.5rem;
            margin-top: 2rem;
        }
        p {
            margin-bottom: 1.5rem;
            text-align: justify;
        }
        a {
            color: var(--primary-color);
            text-decoration: none;
            transition: var(--transition);
        }
        a:hover {
            color: var(--secondary-color);
        }
        strong {
            color: var(--dark-color);
            font-weight: 700;
        }
        .site-header {
            background-color: var(--dark-color);
            color: white;
            padding: 1rem 0;
            position: sticky;
            top: 0;
            z-index: 1000;
            box-shadow: var(--shadow);
        }
        .header-content {
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        .logo {
            font-size: 1.8rem;
            font-weight: 800;
            color: white;
        }
        .logo span {
            color: var(--accent-color);
        }
        .main-nav ul {
            display: flex;
            list-style: none;
        }
        .main-nav li {
            margin-left: 2rem;
        }
        .main-nav a {
            color: white;
            font-weight: 600;
            padding: 0.5rem 0;
            position: relative;
        }
        .main-nav a:hover {
            color: var(--accent-color);
        }
        .main-nav a::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 0;
            height: 3px;
            background-color: var(--accent-color);
            transition: var(--transition);
        }
        .main-nav a:hover::after {
            width: 100%;
        }
        .hamburger {
            display: none;
            font-size: 1.5rem;
            background: none;
            border: none;
            color: white;
            cursor: pointer;
        }
        .breadcrumbs {
            padding: 1rem 0;
            background-color: var(--light-color);
            border-bottom: 1px solid var(--border-color);
        }
        .breadcrumbs ul {
            display: flex;
            list-style: none;
        }
        .breadcrumbs li {
            margin-right: 0.5rem;
            font-size: 0.9rem;
        }
        .breadcrumbs li:not(:last-child)::after {
            content: '›';
            margin-left: 0.5rem;
            color: var(--text-light);
        }
        .breadcrumbs a {
            color: var(--text-light);
        }
        .breadcrumbs a:hover {
            color: var(--primary-color);
        }
        .search-section {
            background: linear-gradient(135deg, var(--primary-color), #0d4a9e);
            color: white;
            padding: 3rem 0;
            text-align: center;
            margin: 2rem 0;
            border-radius: 10px;
        }
        .search-section h2 {
            border: none;
            color: white;
            padding: 0;
            margin-bottom: 1.5rem;
        }
        .search-form {
            max-width: 600px;
            margin: 0 auto;
            display: flex;
        }
        .search-input {
            flex-grow: 1;
            padding: 1rem 1.5rem;
            border: none;
            border-radius: 50px 0 0 50px;
            font-size: 1rem;
            outline: none;
        }
        .search-btn {
            background-color: var(--accent-color);
            color: white;
            border: none;
            padding: 0 2rem;
            border-radius: 0 50px 50px 0;
            font-weight: 600;
            cursor: pointer;
            transition: var(--transition);
        }
        .search-btn:hover {
            background-color: #e68900;
        }
        .main-content {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 3rem;
            margin: 2rem 0;
        }
        @media (max-width: 992px) {
            .main-content {
                grid-template-columns: 1fr;
            }
        }
        .article-content {
            background: white;
            padding: 2rem;
            border-radius: 10px;
            box-shadow: var(--shadow);
        }
        .article-image {
            width: 100%;
            height: auto;
            border-radius: 10px;
            margin: 2rem 0;
            box-shadow: var(--shadow);
        }
        .image-caption {
            text-align: center;
            font-style: italic;
            color: var(--text-light);
            margin-top: 0.5rem;
            font-size: 0.9rem;
        }
        .highlight-box {
            background-color: #f0f8ff;
            border-left: 4px solid var(--primary-color);
            padding: 1.5rem;
            margin: 2rem 0;
            border-radius: 0 8px 8px 0;
        }
        .feature-list {
            list-style: none;
            margin: 1.5rem 0;
        }
        .feature-list li {
            padding: 0.5rem 0;
            padding-left: 2rem;
            position: relative;
        }
        .feature-list li::before {
            content: '✓';
            position: absolute;
            left: 0;
            color: var(--secondary-color);
            font-weight: bold;
        }
        .sidebar {
            display: flex;
            flex-direction: column;
            gap: 2rem;
        }
        .sidebar-widget {
            background: white;
            padding: 1.5rem;
            border-radius: 10px;
            box-shadow: var(--shadow);
        }
        .sidebar-widget h3 {
            border-bottom: 2px solid var(--primary-color);
            padding-bottom: 0.5rem;
            margin-bottom: 1.5rem;
        }
        .download-links {
            list-style: none;
        }
        .download-links li {
            margin-bottom: 0.8rem;
        }
        .download-links a {
            display: block;
            padding: 0.8rem 1rem;
            background-color: var(--light-color);
            border-radius: 5px;
            border: 1px solid var(--border-color);
            font-weight: 600;
            transition: var(--transition);
        }
        .download-links a:hover {
            background-color: var(--primary-color);
            color: white;
            border-color: var(--primary-color);
        }
        .rating-section, .comments-section {
            margin-top: 3rem;
            padding-top: 2rem;
            border-top: 2px solid var(--border-color);
        }
        .rating-widget {
            text-align: center;
            margin-bottom: 2rem;
        }
        .stars {
            font-size: 2rem;
            color: #ffd700;
            margin-bottom: 1rem;
            cursor: pointer;
        }
        .star {
            transition: var(--transition);
        }
        .star:hover {
            transform: scale(1.2);
        }
        .rating-form, .comment-form {
            background-color: var(--light-color);
            padding: 2rem;
            border-radius: 10px;
            margin-top: 1.5rem;
        }
        .form-group {
            margin-bottom: 1.5rem;
        }
        .form-label {
            display: block;
            margin-bottom: 0.5rem;
            font-weight: 600;
        }
        .form-input, .form-textarea {
            width: 100%;
            padding: 0.8rem 1rem;
            border: 1px solid var(--border-color);
            border-radius: 5px;
            font-family: inherit;
            font-size: 1rem;
            transition: var(--transition);
        }
        .form-input:focus, .form-textarea:focus {
            outline: none;
            border-color: var(--primary-color);
            box-shadow: 0 0 0 3px rgba(26, 95, 180, 0.2);
        }
        .form-textarea {
            min-height: 150px;
            resize: vertical;
        }
        .submit-btn {
            background-color: var(--primary-color);
            color: white;
            border: none;
            padding: 1rem 2rem;
            border-radius: 5px;
            font-weight: 600;
            cursor: pointer;
            transition: var(--transition);
        }
        .submit-btn:hover {
            background-color: #154b8a;
        }
        .internal-links {
            background-color: var(--light-color);
            padding: 3rem 0;
            margin: 3rem 0;
        }
        .web-link {
            display: inline-block;
            margin: 0.5rem 1rem 0.5rem 0;
            padding: 0.5rem 1rem;
            background-color: white;
            border-radius: 5px;
            border: 1px solid var(--border-color);
            transition: var(--transition);
        }
        .web-link:hover {
            transform: translateY(-3px);
            box-shadow: var(--shadow);
            border-color: var(--primary-color);
        }
        .site-footer {
            background-color: var(--dark-color);
            color: white;
            padding: 3rem 0 1.5rem;
        }
        .footer-content {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 2rem;
            margin-bottom: 2rem;
        }
        @media (max-width: 768px) {
            .footer-content {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        @media (max-width: 480px) {
            .footer-content {
                grid-template-columns: 1fr;
            }
        }
        .footer-column h4 {
            color: white;
            border-bottom: 2px solid var(--accent-color);
            padding-bottom: 0.5rem;
            margin-bottom: 1.5rem;
        }
        .footer-links {
            list-style: none;
        }
        .footer-links li {
            margin-bottom: 0.8rem;
        }
        .footer-links a {
            color: #ccc;
        }
        .footer-links a:hover {
            color: var(--accent-color);
            padding-left: 5px;
        }
        .copyright {
            text-align: center;
            padding-top: 1.5rem;
            border-top: 1px solid #444;
            color: #aaa;
            font-size: 0.9rem;
        }
        @media (max-width: 768px) {
            .hamburger {
                display: block;
            }
            .main-nav {
                position: fixed;
                top: 70px;
                left: 0;
                width: 100%;
                background-color: var(--dark-color);
                padding: 1rem;
                transform: translateY(-100%);
                opacity: 0;
                visibility: hidden;
                transition: var(--transition);
                box-shadow: 0 10px 15px rgba(0,0,0,0.1);
            }
            .main-nav.active {
                transform: translateY(0);
                opacity: 1;
                visibility: visible;
            }
            .main-nav ul {
                flex-direction: column;
            }
            .main-nav li {
                margin: 0.5rem 0;
            }
            .main-nav a {
                display: block;
                padding: 0.8rem 0;
            }
            h1 {
                font-size: 2rem;
            }
            h2 {
                font-size: 1.6rem;
            }
            .search-form {
                flex-direction: column;
            }
            .search-input {
                border-radius: 50px;
                margin-bottom: 1rem;
            }
            .search-btn {
                border-radius: 50px;
                padding: 1rem;
            }
        }
        .text-center {
            text-align: center;
        }
        .mb-3 {
            margin-bottom: 3rem;
        }
        .mt-3 {
            margin-top: 3rem;
        }
        .emoji {
            font-size: 1.2em;
            margin-right: 5px;
        }
        @keyframes fadeIn {
            from { opacity: 0; transform: translateY(20px); }
            to { opacity: 1; transform: translateY(0); }
        }
        .fade-in {
            animation: fadeIn 0.8s ease forwards;
        }
        @media print {
            .site-header, .search-section, .sidebar, .rating-section, 
            .comments-section, .internal-links, .site-footer {
                display: none;
            }
            .main-content {
                grid-template-columns: 1fr;
            }
            body {
                font-size: 12pt;
                line-height: 1.5;
                color: #000;
            }
            a {
                color: #000;
                text-decoration: underline;
            }
        }