* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }

        body {
            font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
            line-height: 1.7;
            color: #2c3e50;
            background: #f8f9fa;
        }

        .container {
            max-width: 900px;
            margin: 0 auto;
            background: white;
            box-shadow: 0 2px 10px rgba(0,0,0,0.08);
        }

        header {
            background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
            color: white;
            padding: 3rem 2rem;
            text-align: center;
        }

        header h1 {
            font-size: 2.5rem;
            font-weight: 700;
            margin-bottom: 0.5rem;
        }

        header .subtitle {
            font-size: 1.5rem;
            font-weight: 300;
            opacity: 0.95;
        }

        .last-updated {
            background: #fff3cd;
            border-left: 4px solid #ffc107;
            padding: 1rem 2rem;
            font-weight: 600;
            color: #856404;
        }

        .content {
            padding: 2.5rem;
        }

        h2 {
            font-size: 1.6rem;
            color: #667eea;
            margin-top: 2.5rem;
            margin-bottom: 1rem;
            padding-bottom: 0.5rem;
            border-bottom: 2px solid #e9ecef;
        }

        h2:first-child {
            margin-top: 0;
        }

        h3 {
            font-size: 1.2rem;
            color: #495057;
            margin-top: 1.5rem;
            margin-bottom: 0.75rem;
        }

        p {
            margin-bottom: 1rem;
            text-align: justify;
        }

        ul, ol {
            margin-left: 2rem;
            margin-bottom: 1rem;
        }

        li {
            margin-bottom: 0.5rem;
        }

        .definition-list {
            list-style: none;
            margin-left: 0;
        }

        .definition-list li {
            padding-left: 2rem;
            text-indent: -2rem;
            margin-bottom: 0.75rem;
        }

        .definition-list strong {
            color: #667eea;
        }

        hr {
            border: none;
            border-top: 1px solid #dee2e6;
            margin: 2rem 0;
        }

        .emphasis-box {
            background: #e7f3ff;
            border-left: 4px solid #2196f3;
            padding: 1.25rem;
            margin: 1.5rem 0;
            border-radius: 4px;
        }

        .warning-box {
            background: #fff3e0;
            border-left: 4px solid #ff9800;
            padding: 1.25rem;
            margin: 1.5rem 0;
            border-radius: 4px;
        }

        .contact-section {
            background: #f8f9fa;
            padding: 1.5rem;
            border-radius: 8px;
            margin-top: 2rem;
            text-align: center;
        }

        .contact-section a {
            color: #667eea;
            text-decoration: none;
            font-weight: 600;
        }

        .contact-section a:hover {
            text-decoration: underline;
        }

        footer {
            background: #2c3e50;
            color: white;
            padding: 2rem;
            text-align: center;
        }

        footer a {
            color: #667eea;
            text-decoration: none;
        }

        footer a:hover {
            text-decoration: underline;
        }

        @media (max-width: 768px) {
            header h1 {
                font-size: 2rem;
            }

            header .subtitle {
                font-size: 1.2rem;
            }

            .content {
                padding: 1.5rem;
            }

            h2 {
                font-size: 1.4rem;
            }
        }