* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
        }
        :root {
            --primary: #1e3a8a; 
            --secondary: #dc2626; 
            --accent: #fbbf24; 
            --light: #f8fafc;
            --dark: #0f172a;
            --gray: #64748b;
            --transition: all 0.3s ease;
            --shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
            --radius: 8px;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            background-color: #f1f5f9;
            color: #334155;
            line-height: 1.7;
            min-height: 100vh;
            display: flex;
            flex-direction: column;
        }
        a {
            color: var(--primary);
            text-decoration: none;
            transition: var(--transition);
        }
        a:hover {
            color: var(--secondary);
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        .btn {
            display: inline-block;
            padding: 12px 28px;
            background-color: var(--primary);
            color: white;
            border: none;
            border-radius: var(--radius);
            font-weight: 600;
            cursor: pointer;
            transition: var(--transition);
            text-align: center;
        }
        .btn:hover {
            background-color: var(--secondary);
            transform: translateY(-2px);
            box-shadow: var(--shadow);
            color: white;
        }
        .btn-accent {
            background-color: var(--accent);
            color: var(--dark);
        }
        header {
            background-color: white;
            box-shadow: var(--shadow);
            position: sticky;
            top: 0;
            z-index: 1000;
        }
        .header-content {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 15px 0;
        }
        .logo a {
            font-size: 1.8rem;
            font-weight: 800;
            color: var(--primary);
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .logo i {
            color: var(--secondary);
        }
        .logo span {
            color: var(--secondary);
        }
        .nav-desktop ul {
            display: flex;
            list-style: none;
            gap: 30px;
        }
        .nav-desktop a {
            font-weight: 600;
            padding: 8px 0;
            position: relative;
        }
        .nav-desktop a:after {
            content: '';
            position: absolute;
            width: 0;
            height: 3px;
            background: var(--secondary);
            left: 0;
            bottom: 0;
            transition: var(--transition);
        }
        .nav-desktop a:hover:after {
            width: 100%;
        }
        .nav-mobile-toggle {
            display: none;
            font-size: 1.5rem;
            background: none;
            border: none;
            color: var(--primary);
            cursor: pointer;
        }
        .nav-mobile {
            display: none;
            position: absolute;
            top: 100%;
            left: 0;
            width: 100%;
            background-color: white;
            box-shadow: 0 10px 15px -3px rgba(0,0,0,0.1);
            padding: 20px;
            flex-direction: column;
            gap: 15px;
        }
        .nav-mobile.active {
            display: flex;
        }
        .nav-mobile ul {
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 15px;
        }
        .nav-mobile a {
            font-weight: 600;
            display: block;
            padding: 10px 15px;
            border-radius: var(--radius);
        }
        .nav-mobile a:hover {
            background-color: var(--light);
        }
        .breadcrumb {
            background-color: var(--light);
            padding: 15px 0;
            border-bottom: 1px solid #e2e8f0;
        }
        .breadcrumb ul {
            display: flex;
            list-style: none;
            flex-wrap: wrap;
            gap: 10px;
        }
        .breadcrumb li {
            display: flex;
            align-items: center;
            gap: 10px;
            color: var(--gray);
        }
        .breadcrumb li:not(:last-child):after {
            content: '>';
            font-size: 0.9rem;
        }
        .breadcrumb a {
            color: var(--gray);
        }
        .breadcrumb a:hover {
            color: var(--primary);
        }
        main {
            flex: 1;
            padding: 40px 0;
        }
        .article-header {
            text-align: center;
            margin-bottom: 40px;
            padding-bottom: 30px;
            border-bottom: 2px solid #e2e8f0;
        }
        .article-header h1 {
            font-size: 2.8rem;
            color: var(--dark);
            margin-bottom: 20px;
            line-height: 1.2;
        }
        .article-meta {
            display: flex;
            justify-content: center;
            gap: 30px;
            color: var(--gray);
            font-size: 0.95rem;
            flex-wrap: wrap;
        }
        .article-meta span {
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .content-section {
            background-color: white;
            border-radius: var(--radius);
            padding: 40px;
            margin-bottom: 40px;
            box-shadow: var(--shadow);
        }
        h2 {
            font-size: 2.2rem;
            color: var(--primary);
            margin-bottom: 25px;
            padding-bottom: 15px;
            border-bottom: 2px solid var(--accent);
        }
        h3 {
            font-size: 1.8rem;
            color: var(--dark);
            margin: 30px 0 20px;
        }
        h4 {
            font-size: 1.4rem;
            color: var(--secondary);
            margin: 25px 0 15px;
        }
        p {
            margin-bottom: 20px;
            font-size: 1.1rem;
        }
        .lead {
            font-size: 1.3rem;
            font-weight: 500;
            color: var(--dark);
            background-color: #f0f9ff;
            padding: 25px;
            border-radius: var(--radius);
            border-left: 5px solid var(--primary);
            margin-bottom: 30px;
        }
        .highlight {
            background-color: #fef3c7;
            padding: 25px;
            border-radius: var(--radius);
            border-left: 5px solid var(--accent);
            margin: 30px 0;
        }
        .quote {
            font-style: italic;
            color: var(--gray);
            border-left: 4px solid var(--secondary);
            padding-left: 25px;
            margin: 30px 0;
            font-size: 1.2rem;
        }
        .quote-author {
            text-align: right;
            font-weight: 600;
            color: var(--dark);
            margin-top: 10px;
        }
        .image-container {
            margin: 40px 0;
            text-align: center;
        }
        .image-container img {
            border-radius: var(--radius);
            box-shadow: 0 10px 25px rgba(0,0,0,0.1);
            margin: 0 auto;
        }
        .image-caption {
            font-size: 0.95rem;
            color: var(--gray);
            margin-top: 10px;
            font-style: italic;
        }
        ul, ol {
            padding-left: 30px;
            margin-bottom: 25px;
        }
        li {
            margin-bottom: 10px;
        }
        strong {
            color: var(--dark);
            font-weight: 700;
        }
        .interactive-features {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 30px;
            margin: 50px 0;
        }
        .feature-box {
            background-color: white;
            border-radius: var(--radius);
            padding: 30px;
            box-shadow: var(--shadow);
            border-top: 5px solid var(--primary);
            transition: var(--transition);
        }
        .feature-box:hover {
            transform: translateY(-10px);
        }
        .feature-box h3 {
            display: flex;
            align-items: center;
            gap: 15px;
            color: var(--primary);
            margin-top: 0;
        }
        .feature-box i {
            font-size: 2rem;
            color: var(--secondary);
        }
        .feature-form {
            display: flex;
            flex-direction: column;
            gap: 20px;
            margin-top: 20px;
        }
        .form-group {
            display: flex;
            flex-direction: column;
            gap: 8px;
        }
        .form-group label {
            font-weight: 600;
            color: var(--dark);
        }
        .form-control {
            padding: 12px 15px;
            border: 1px solid #cbd5e1;
            border-radius: var(--radius);
            font-size: 1rem;
            transition: var(--transition);
        }
        .form-control:focus {
            outline: none;
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(30, 58, 138, 0.1);
        }
        textarea.form-control {
            min-height: 120px;
            resize: vertical;
        }
        .rating {
            display: flex;
            gap: 10px;
            margin: 10px 0;
        }
        .rating input {
            display: none;
        }
        .rating label {
            font-size: 1.8rem;
            color: #cbd5e1;
            cursor: pointer;
            transition: var(--transition);
        }
        .rating label:hover,
        .rating label:hover ~ label,
        .rating input:checked ~ label {
            color: var(--accent);
        }
        .web-links-section {
            background-color: white;
            border-radius: var(--radius);
            padding: 40px;
            margin: 50px 0;
            box-shadow: var(--shadow);
        }
        .web-links-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
            gap: 20px;
            margin-top: 30px;
        }
        .web-link {
            background-color: var(--light);
            padding: 20px;
            border-radius: var(--radius);
            transition: var(--transition);
        }
        .web-link:hover {
            background-color: #e0f2fe;
            transform: translateX(5px);
        }
        .web-link a {
            font-weight: 600;
            color: var(--primary);
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .web-link i {
            color: var(--secondary);
        }
        footer {
            background-color: var(--dark);
            color: #cbd5e1;
            padding: 60px 0 30px;
            margin-top: auto;
        }
        .footer-content {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 40px;
            margin-bottom: 40px;
        }
        .footer-section h3 {
            color: white;
            font-size: 1.3rem;
            margin-bottom: 25px;
            padding-bottom: 10px;
            border-bottom: 2px solid var(--secondary);
        }
        .footer-links {
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .footer-links a {
            color: #94a3b8;
            transition: var(--transition);
        }
        .footer-links a:hover {
            color: white;
            padding-left: 5px;
        }
        .copyright {
            text-align: center;
            padding-top: 30px;
            border-top: 1px solid #334155;
            color: #94a3b8;
            font-size: 0.95rem;
        }
        @media (max-width: 992px) {
            .article-header h1 {
                font-size: 2.4rem;
            }
            h2 {
                font-size: 2rem;
            }
            h3 {
                font-size: 1.6rem;
            }
            .content-section {
                padding: 30px;
            }
        }
        @media (max-width: 768px) {
            .nav-desktop {
                display: none;
            }
            .nav-mobile-toggle {
                display: block;
            }
            .article-header h1 {
                font-size: 2rem;
            }
            h2 {
                font-size: 1.8rem;
            }
            h3 {
                font-size: 1.5rem;
            }
            .content-section {
                padding: 25px;
            }
            .interactive-features {
                grid-template-columns: 1fr;
            }
            .web-links-grid {
                grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
            }
        }
        @media (max-width: 576px) {
            .container {
                padding: 0 15px;
            }
            .article-header h1 {
                font-size: 1.8rem;
            }
            .article-meta {
                flex-direction: column;
                gap: 10px;
                align-items: center;
            }
            .content-section {
                padding: 20px;
            }
            .footer-content {
                grid-template-columns: 1fr;
            }
        }