        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        body {
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
            line-height: 1.7;
            color: #333;
            background-color: #f8f9fa;
            max-width: 1800px;
            margin: 0 auto;
        }
        :root {
            --primary: #1a4d8c;
            --secondary: #e63946;
            --accent: #2a9d8f;
            --light: #f1faee;
            --dark: #1d3557;
            --gray: #6c757d;
            --light-gray: #e9ecef;
        }
        h1, h2, h3, h4 {
            font-family: 'Montserrat', 'Segoe UI', sans-serif;
            font-weight: 700;
            color: var(--dark);
            margin-bottom: 1.5rem;
            line-height: 1.3;
        }
        h1 {
            font-size: 2.8rem;
            color: var(--primary);
            border-bottom: 3px solid var(--secondary);
            padding-bottom: 0.5rem;
            margin-top: 2rem;
        }
        h2 {
            font-size: 2.2rem;
            margin-top: 3rem;
            padding-left: 1rem;
            border-left: 5px solid var(--accent);
        }
        h3 {
            font-size: 1.8rem;
            color: var(--secondary);
            margin-top: 2.5rem;
        }
        p {
            margin-bottom: 1.8rem;
            font-size: 1.1rem;
            text-align: justify;
            hyphens: auto;
        }
        .header {
            background: linear-gradient(135deg, var(--primary) 0%, var(--dark) 100%);
            color: white;
            padding: 1.5rem 2rem;
            box-shadow: 0 4px 12px rgba(0,0,0,0.1);
            position: sticky;
            top: 0;
            z-index: 1000;
        }
        .header-container {
            display: flex;
            justify-content: space-between;
            align-items: center;
            max-width: 1600px;
            margin: 0 auto;
        }
        .logo {
            font-size: 2.2rem;
            font-weight: 900;
            text-transform: uppercase;
            letter-spacing: 1px;
        }
        .logo a {
            color: white;
            text-decoration: none;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .logo i {
            color: var(--secondary);
            font-size: 2.5rem;
        }
        .nav-desktop {
            display: flex;
            gap: 2rem;
        }
        @media (max-width: 992px) {
            .nav-desktop {
                display: none;
            }
        }
        .nav-desktop a {
            color: white;
            text-decoration: none;
            font-weight: 600;
            font-size: 1.1rem;
            padding: 0.5rem 1rem;
            border-radius: 4px;
            transition: all 0.3s ease;
        }
        .nav-desktop a:hover {
            background-color: rgba(255,255,255,0.15);
            transform: translateY(-2px);
        }
        .hamburger {
            display: none;
            font-size: 1.8rem;
            background: none;
            border: none;
            color: white;
            cursor: pointer;
            padding: 0.5rem;
        }
        @media (max-width: 992px) {
            .hamburger {
                display: block;
            }
        }
        .nav-mobile {
            display: none;
            position: absolute;
            top: 100%;
            left: 0;
            right: 0;
            background-color: var(--dark);
            padding: 1.5rem;
            flex-direction: column;
            gap: 1rem;
            box-shadow: 0 5px 15px rgba(0,0,0,0.2);
        }
        .nav-mobile.active {
            display: flex;
        }
        .nav-mobile a {
            color: white;
            text-decoration: none;
            font-weight: 600;
            padding: 0.8rem;
            border-bottom: 1px solid rgba(255,255,255,0.1);
            transition: all 0.3s ease;
        }
        .nav-mobile a:hover {
            background-color: rgba(255,255,255,0.1);
            padding-left: 1.5rem;
        }
        .breadcrumb {
            background-color: var(--light-gray);
            padding: 1rem 2rem;
            font-size: 0.95rem;
            border-bottom: 1px solid #dee2e6;
        }
        .breadcrumb a {
            color: var(--primary);
            text-decoration: none;
        }
        .breadcrumb a:hover {
            text-decoration: underline;
        }
        .breadcrumb span {
            color: var(--gray);
        }
        .main-container {
            display: grid;
            grid-template-columns: 1fr 350px;
            gap: 2.5rem;
            padding: 2.5rem;
            max-width: 1600px;
            margin: 0 auto;
        }
        @media (max-width: 1200px) {
            .main-container {
                grid-template-columns: 1fr;
            }
        }
        .article-content {
            background: white;
            padding: 2.5rem;
            border-radius: 12px;
            box-shadow: 0 5px 20px rgba(0,0,0,0.08);
        }
        .feature-box {
            background: linear-gradient(to right, #f8f9fa, #e9ecef);
            border-left: 5px solid var(--secondary);
            padding: 1.5rem;
            margin: 2.5rem 0;
            border-radius: 0 8px 8px 0;
        }
        .feature-box h3 {
            color: var(--dark);
            margin-top: 0;
        }
        .article-image {
            width: 100%;
            height: auto;
            border-radius: 8px;
            margin: 2rem 0;
            box-shadow: 0 5px 15px rgba(0,0,0,0.1);
            transition: transform 0.3s ease;
        }
        .article-image:hover {
            transform: scale(1.01);
        }
        .image-caption {
            text-align: center;
            font-style: italic;
            color: var(--gray);
            margin-top: -1.5rem;
            margin-bottom: 2rem;
            font-size: 0.95rem;
        }
        .interactive-section {
            background-color: var(--light);
            padding: 2rem;
            border-radius: 10px;
            margin: 3rem 0;
            border: 2px solid var(--accent);
        }
        .interactive-section h3 {
            display: flex;
            align-items: center;
            gap: 10px;
            color: var(--dark);
        }
        form {
            display: flex;
            flex-direction: column;
            gap: 1.2rem;
            margin-top: 1.5rem;
        }
        input, textarea, select {
            padding: 0.9rem;
            border: 2px solid #dee2e6;
            border-radius: 6px;
            font-size: 1rem;
            transition: border-color 0.3s ease;
        }
        input:focus, textarea:focus, select:focus {
            outline: none;
            border-color: var(--primary);
        }
        button {
            background: linear-gradient(to right, var(--primary), var(--dark));
            color: white;
            border: none;
            padding: 1rem 1.5rem;
            border-radius: 6px;
            font-size: 1.1rem;
            font-weight: 600;
            cursor: pointer;
            transition: all 0.3s ease;
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 10px;
        }
        button:hover {
            transform: translateY(-2px);
            box-shadow: 0 5px 15px rgba(0,0,0,0.1);
        }
        .rating-system {
            display: flex;
            align-items: center;
            gap: 1rem;
            margin: 1.5rem 0;
        }
        .stars {
            display: flex;
            gap: 5px;
        }
        .stars i {
            color: #ffd700;
            font-size: 1.5rem;
            cursor: pointer;
            transition: transform 0.2s ease;
        }
        .stars i:hover {
            transform: scale(1.2);
        }
        .sidebar {
            background: white;
            padding: 2rem;
            border-radius: 12px;
            box-shadow: 0 5px 20px rgba(0,0,0,0.08);
            height: fit-content;
            position: sticky;
            top: 120px;
        }
        .sidebar-section {
            margin-bottom: 2.5rem;
        }
        .sidebar h3 {
            font-size: 1.5rem;
            margin-bottom: 1.2rem;
            padding-bottom: 0.5rem;
            border-bottom: 2px solid var(--light-gray);
        }
        .sidebar ul {
            list-style: none;
        }
        .sidebar li {
            margin-bottom: 0.8rem;
            padding-bottom: 0.8rem;
            border-bottom: 1px solid var(--light-gray);
        }
        .sidebar a {
            color: var(--dark);
            text-decoration: none;
            transition: color 0.3s ease;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .sidebar a:hover {
            color: var(--secondary);
        }
        .web-link {
            background: var(--light);
            padding: 1rem;
            margin: 1rem 0;
            border-radius: 6px;
            border-left: 4px solid var(--accent);
            transition: all 0.3s ease;
        }
        .web-link:hover {
            transform: translateX(5px);
            background: #e9ecef;
        }
        .web-link a {
            color: var(--primary);
            text-decoration: none;
            font-weight: 600;
            display: block;
        }
        .web-link a:hover {
            text-decoration: underline;
        }
        .footer {
            background: var(--dark);
            color: white;
            padding: 3rem 2rem 1.5rem;
            margin-top: 4rem;
        }
        .footer-container {
            max-width: 1600px;
            margin: 0 auto;
        }
        .footer-links {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            gap: 2rem;
            margin-bottom: 2.5rem;
        }
        .footer-section h4 {
            color: white;
            font-size: 1.3rem;
            margin-bottom: 1.5rem;
            border-bottom: 2px solid var(--secondary);
            padding-bottom: 0.5rem;
        }
        .footer-links ul {
            list-style: none;
        }
        .footer-links li {
            margin-bottom: 0.8rem;
        }
        .footer-links a {
            color: #adb5bd;
            text-decoration: none;
            transition: color 0.3s ease;
        }
        .footer-links a:hover {
            color: white;
            padding-left: 5px;
        }
        .copyright {
            text-align: center;
            padding-top: 1.5rem;
            border-top: 1px solid rgba(255,255,255,0.1);
            color: #adb5bd;
            font-size: 0.9rem;
        }
        .highlight {
            background-color: rgba(230, 57, 70, 0.1);
            padding: 0.2rem 0.5rem;
            border-radius: 3px;
            font-weight: 600;
        }
        .quote {
            font-style: italic;
            color: var(--gray);
            border-left: 4px solid var(--accent);
            padding-left: 1.5rem;
            margin: 2rem 0;
            font-size: 1.2rem;
        }
        .stat-box {
            background: linear-gradient(135deg, var(--primary), var(--dark));
            color: white;
            padding: 1.5rem;
            border-radius: 8px;
            text-align: center;
            margin: 2rem 0;
        }
        .stat-number {
            font-size: 3rem;
            font-weight: 900;
            display: block;
            line-height: 1;
        }
        .stat-label {
            font-size: 1.1rem;
            opacity: 0.9;
        }
        @media (max-width: 768px) {
            .header-container {
                flex-direction: column;
                gap: 1rem;
                text-align: center;
            }
            .logo {
                font-size: 1.8rem;
            }
            h1 {
                font-size: 2.2rem;
            }
            h2 {
                font-size: 1.8rem;
            }
            h3 {
                font-size: 1.5rem;
            }
            .main-container, .article-content {
                padding: 1.5rem;
            }
            .footer {
                padding: 2rem 1.5rem 1rem;
            }
            .interactive-section {
                padding: 1.5rem;
            }
        }
        @media print {
            .header, .sidebar, .interactive-section, .footer, .breadcrumb {
                display: none;
            }
            body {
                background: white;
                color: black;
                max-width: 100%;
            }
            .article-content {
                box-shadow: none;
                padding: 0;
            }
        }
        @media (prefers-reduced-motion: reduce) {
            * {
                animation-duration: 0.01ms !important;
                animation-iteration-count: 1 !important;
                transition-duration: 0.01ms !important;
            }
        }
        :focus-visible {
            outline: 3px solid var(--secondary);
            outline-offset: 3px;
        }
