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

        body {
            font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
            line-height: 1.6;
            color: #333;
            background-color: #f8f9fa;
        }

        /* Header & Navigation */
        .ef9dq1-header {
            background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
            color: white;
            padding: 0;
            box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
            position: sticky;
            top: 0;
            z-index: 1000;
        }

        .ef9dq1-nav-container {
            max-width: 1200px;
            margin: 0 auto;
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 1rem 2rem;
        }

        .ef9dq1-logo-section {
            display: flex;
            align-items: center;
            gap: 0.5rem;
        }

        .ef9dq1-logo-section img {
            height: 40px;
            width: auto;
        }

        .ef9dq1-logo-text {
            font-size: 1.5rem;
            font-weight: 700;
            color: white;
        }

        .ef9dq1-nav-menu {
            display: flex;
            gap: 2rem;
            list-style: none;
        }

        .ef9dq1-nav-link {
            color: white;
            text-decoration: none;
            font-size: 0.95rem;
            font-weight: 500;
            transition: all 0.3s ease;
            padding: 0.5rem 0;
            border-bottom: 2px solid transparent;
        }

        .ef9dq1-nav-link:hover {
            border-bottom-color: #fff;
            opacity: 0.8;
        }

        /* Hero Section */
        .ef9dq1-hero {
            background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
            color: white;
            padding: 3rem 2rem;
            text-align: center;
        }

        .ef9dq1-hero-content {
            max-width: 800px;
            margin: 0 auto;
        }

        .ef9dq1-hero h1 {
            font-size: 2.5rem;
            margin-bottom: 1rem;
            font-weight: 700;
            line-height: 1.2;
        }

        .ef9dq1-hero-desc {
            font-size: 1.1rem;
            margin-bottom: 2rem;
            opacity: 0.95;
        }

        .ef9dq1-hero-cta {
            display: inline-block;
            background: #fff;
            color: #667eea;
            padding: 0.75rem 2rem;
            border-radius: 5px;
            text-decoration: none;
            font-weight: 600;
            transition: all 0.3s ease;
            cursor: pointer;
            border: none;
            font-size: 1rem;
        }

        .ef9dq1-hero-cta:hover {
            transform: translateY(-2px);
            box-shadow: 0 5px 15px rgba(0, 0, 0, 0.2);
        }

        /* Main Content */
        .ef9dq1-main-container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 3rem 2rem;
        }

        .ef9dq1-content-wrapper {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 2rem;
        }

        .ef9dq1-article {
            background: white;
            padding: 2rem;
            border-radius: 8px;
            box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
        }

        .ef9dq1-article h2 {
            font-size: 1.8rem;
            margin: 2rem 0 1rem 0;
            color: #667eea;
            border-left: 4px solid #667eea;
            padding-left: 1rem;
        }

        .ef9dq1-article h3 {
            font-size: 1.3rem;
            margin: 1.5rem 0 0.8rem 0;
            color: #764ba2;
        }

        .ef9dq1-article p {
            margin-bottom: 1rem;
            text-align: justify;
        }

        .ef9dq1-article ul,
        .ef9dq1-article ol {
            margin: 1rem 0 1rem 2rem;
            line-height: 1.8;
        }

        .ef9dq1-article li {
            margin-bottom: 0.5rem;
        }

        .ef9dq1-faq-item {
            background: #f8f9fa;
            border: 1px solid #e9ecef;
            border-radius: 5px;
            margin-bottom: 1rem;
            overflow: hidden;
        }

        .ef9dq1-faq-question {
            background: #f8f9fa;
            padding: 1.2rem;
            cursor: pointer;
            font-weight: 600;
            color: #333;
            display: flex;
            justify-content: space-between;
            align-items: center;
            transition: all 0.3s ease;
        }

        .ef9dq1-faq-question:hover {
            background: #e9ecef;
            color: #667eea;
        }

        .ef9dq1-faq-toggle {
            font-size: 1.2rem;
            color: #667eea;
        }

        .ef9dq1-faq-answer {
            padding: 0 1.2rem;
            max-height: 0;
            overflow: hidden;
            transition: all 0.3s ease;
            background: white;
        }

        .ef9dq1-faq-answer.active {
            padding: 1.2rem;
            max-height: 500px;
        }

        .ef9dq1-step-list {
            counter-reset: step-counter;
            list-style: none;
        }

        .ef9dq1-step-item {
            counter-increment: step-counter;
            margin-bottom: 1.5rem;
            padding-left: 3rem;
            position: relative;
        }

        .ef9dq1-step-item::before {
            content: counter(step-counter);
            position: absolute;
            left: 0;
            top: 0;
            background: #667eea;
            color: white;
            width: 2.5rem;
            height: 2.5rem;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 600;
            font-size: 1rem;
        }

        .ef9dq1-step-item strong {
            color: #764ba2;
        }

        /* Sidebar */
        .ef9dq1-sidebar {
            background: white;
            padding: 1.5rem;
            border-radius: 8px;
            box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
            height: fit-content;
            position: sticky;
            top: 100px;
        }

        .ef9dq1-sidebar-title {
            font-size: 1.2rem;
            font-weight: 700;
            margin-bottom: 1rem;
            color: #667eea;
            border-bottom: 2px solid #667eea;
            padding-bottom: 0.5rem;
        }

        .ef9dq1-sidebar-list {
            list-style: none;
        }

        .ef9dq1-sidebar-item {
            margin-bottom: 0.8rem;
        }

        .ef9dq1-sidebar-link {
            color: #555;
            text-decoration: none;
            font-size: 0.95rem;
            transition: all 0.3s ease;
            display: block;
            padding: 0.5rem;
            border-radius: 3px;
        }

        .ef9dq1-sidebar-link:hover {
            color: #667eea;
            background: #f8f9fa;
            padding-left: 1rem;
        }

        .ef9dq1-code-block {
            background: #2d2d2d;
            color: #f8f8f2;
            padding: 1rem;
            border-radius: 5px;
            overflow-x: auto;
            margin: 1rem 0;
            font-family: 'Courier New', monospace;
            font-size: 0.9rem;
            line-height: 1.4;
        }

        .ef9dq1-tip-box {
            background: #e7f3ff;
            border-left: 4px solid #2196F3;
            padding: 1rem;
            margin: 1.5rem 0;
            border-radius: 3px;
        }

        .ef9dq1-tip-box strong {
            color: #1976D2;
        }

        .ef9dq1-warning-box {
            background: #fff3cd;
            border-left: 4px solid #ffc107;
            padding: 1rem;
            margin: 1.5rem 0;
            border-radius: 3px;
        }

        .ef9dq1-warning-box strong {
            color: #ff9800;
        }

        /* CTA Section */
        .ef9dq1-cta-section {
            background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
            color: white;
            padding: 2.5rem;
            border-radius: 8px;
            margin: 2rem 0;
            text-align: center;
        }

        .ef9dq1-cta-title {
            font-size: 1.5rem;
            margin-bottom: 1rem;
        }

        .ef9dq1-cta-button {
            background: white;
            color: #667eea;
            padding: 0.75rem 2rem;
            border-radius: 5px;
            text-decoration: none;
            font-weight: 600;
            display: inline-block;
            transition: all 0.3s ease;
            border: none;
            cursor: pointer;
            font-size: 1rem;
            margin-top: 1rem;
        }

        .ef9dq1-cta-button:hover {
            transform: translateY(-2px);
            box-shadow: 0 5px 15px rgba(0, 0, 0, 0.2);
        }

        /* Footer */
        .ef9dq1-footer {
            background: #2c3e50;
            color: white;
            padding: 2rem;
            margin-top: 3rem;
        }

        .ef9dq1-footer-content {
            max-width: 1200px;
            margin: 0 auto;
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 2rem;
            margin-bottom: 2rem;
        }

        .ef9dq1-footer-section h4 {
            font-size: 1rem;
            margin-bottom: 1rem;
            color: #667eea;
        }

        .ef9dq1-footer-link {
            color: #bbb;
            text-decoration: none;
            display: block;
            margin-bottom: 0.5rem;
            transition: all 0.3s ease;
        }

        .ef9dq1-footer-link:hover {
            color: #667eea;
            padding-left: 0.5rem;
        }

        .ef9dq1-footer-bottom {
            border-top: 1px solid #444;
            padding-top: 1.5rem;
            text-align: center;
            color: #888;
        }

        /* Responsive Design */
        @media (max-width: 768px) {
            .ef9dq1-hero h1 {
                font-size: 1.8rem;
            }

            .ef9dq1-nav-menu {
                gap: 1rem;
                font-size: 0.85rem;
            }

            .ef9dq1-content-wrapper {
                grid-template-columns: 1fr;
            }

            .ef9dq1-sidebar {
                position: static;
            }

            .ef9dq1-article {
                padding: 1.5rem;
            }

            .ef9dq1-article h2 {
                font-size: 1.4rem;
            }

            .ef9dq1-nav-container {
                padding: 1rem;
                flex-wrap: wrap;
            }

            .ef9dq1-nav-menu {
                flex-wrap: wrap;
                width: 100%;
                margin-top: 1rem;
            }
        }

        @media (max-width: 480px) {
            .ef9dq1-hero h1 {
                font-size: 1.4rem;
            }

            .ef9dq1-nav-menu {
                gap: 0.5rem;
            }

            .ef9dq1-nav-link {
                font-size: 0.8rem;
            }

            .ef9dq1-article {
                padding: 1rem;
            }

            .ef9dq1-step-item {
                padding-left: 2.5rem;
            }
        }

        .ef9dq1-table {
            width: 100%;
            border-collapse: collapse;
            margin: 1.5rem 0;
        }

        .ef9dq1-table th {
            background: #667eea;
            color: white;
            padding: 0.75rem;
            text-align: left;
            font-weight: 600;
        }

        .ef9dq1-table td {
            border-bottom: 1px solid #ddd;
            padding: 0.75rem;
        }

        .ef9dq1-table tr:hover {
            background: #f8f9fa;
        }

        .ef9dq1-highlight {
            background: #fff3cd;
            padding: 0.2rem 0.4rem;
            border-radius: 3px;
            font-weight: 500;
            color: #856404;
        }