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

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

        .dgca-container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }

        /* Header & Navigation */
        .dgca-header {
            background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
            color: white;
            padding: 15px 0;
            position: sticky;
            top: 0;
            z-index: 1000;
            box-shadow: 0 2px 8px rgba(0,0,0,0.1);
        }

        .dgca-header-inner {
            display: flex;
            justify-content: space-between;
            align-items: center;
        }

        .dgca-logo {
            font-size: 24px;
            font-weight: bold;
            display: flex;
            align-items: center;
            gap: 10px;
        }

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

        .dgca-nav {
            display: flex;
            gap: 30px;
            align-items: center;
        }

        .dgca-nav-link {
            color: white;
            text-decoration: none;
            font-size: 14px;
            font-weight: 500;
            transition: opacity 0.3s ease;
        }

        .dgca-nav-link:hover {
            opacity: 0.8;
        }

        /* Hero Section */
        .dgca-hero {
            background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
            color: white;
            padding: 80px 0;
            text-align: center;
        }

        .dgca-hero-title {
            font-size: 48px;
            font-weight: 700;
            margin-bottom: 20px;
            line-height: 1.2;
        }

        .dgca-hero-subtitle {
            font-size: 20px;
            margin-bottom: 40px;
            opacity: 0.95;
            font-weight: 300;
        }

        .dgca-hero-buttons {
            display: flex;
            gap: 20px;
            justify-content: center;
            flex-wrap: wrap;
        }

        .dgca-btn-primary {
            background: white;
            color: #667eea;
            padding: 14px 40px;
            border: none;
            border-radius: 8px;
            font-size: 16px;
            font-weight: 600;
            cursor: pointer;
            transition: transform 0.3s ease, box-shadow 0.3s ease;
            text-decoration: none;
            display: inline-block;
        }

        .dgca-btn-primary:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 16px rgba(0,0,0,0.2);
        }

        .dgca-btn-secondary {
            background: transparent;
            color: white;
            padding: 14px 40px;
            border: 2px solid white;
            border-radius: 8px;
            font-size: 16px;
            font-weight: 600;
            cursor: pointer;
            transition: all 0.3s ease;
            text-decoration: none;
            display: inline-block;
        }

        .dgca-btn-secondary:hover {
            background: white;
            color: #667eea;
        }

        /* Features Section */
        .dgca-features {
            padding: 80px 0;
            background: #f8f9fa;
        }

        .dgca-section-title {
            font-size: 36px;
            font-weight: 700;
            text-align: center;
            margin-bottom: 50px;
            color: #222;
        }

        .dgca-features-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: 30px;
        }

        .dgca-feature-card {
            background: white;
            padding: 30px;
            border-radius: 12px;
            box-shadow: 0 4px 12px rgba(0,0,0,0.08);
            transition: transform 0.3s ease, box-shadow 0.3s ease;
        }

        .dgca-feature-card:hover {
            transform: translateY(-8px);
            box-shadow: 0 8px 24px rgba(0,0,0,0.12);
        }

        .dgca-feature-icon {
            font-size: 40px;
            margin-bottom: 15px;
            height: 50px;
            display: flex;
            align-items: center;
        }

        .dgca-feature-title {
            font-size: 18px;
            font-weight: 600;
            margin-bottom: 12px;
            color: #222;
        }

        .dgca-feature-desc {
            font-size: 14px;
            color: #666;
            line-height: 1.6;
        }

        /* Highlights Section */
        .dgca-highlights {
            padding: 80px 0;
            background: white;
        }

        .dgca-highlights-content {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 50px;
            align-items: center;
        }

        .dgca-highlight-text h2 {
            font-size: 32px;
            margin-bottom: 20px;
            color: #222;
        }

        .dgca-highlight-list {
            list-style: none;
        }

        .dgca-highlight-item {
            padding: 12px 0;
            font-size: 15px;
            color: #555;
            display: flex;
            align-items: flex-start;
            gap: 12px;
        }

        .dgca-highlight-item:before {
            content: "✓";
            color: #667eea;
            font-weight: bold;
            font-size: 18px;
            flex-shrink: 0;
        }

        .dgca-highlight-image {
            background: linear-gradient(135deg, #667eea15 0%, #764ba215 100%);
            height: 400px;
            border-radius: 12px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 14px;
            color: #999;
        }

        /* Changelog Section */
        .dgca-changelog {
            padding: 80px 0;
            background: #f8f9fa;
        }

        .dgca-changelog-list {
            list-style: none;
        }

        .dgca-changelog-item {
            background: white;
            padding: 25px;
            margin-bottom: 20px;
            border-radius: 8px;
            border-left: 4px solid #667eea;
            box-shadow: 0 2px 8px rgba(0,0,0,0.05);
        }

        .dgca-changelog-title {
            font-size: 16px;
            font-weight: 600;
            color: #222;
            margin-bottom: 8px;
        }

        .dgca-changelog-desc {
            font-size: 14px;
            color: #666;
        }

        /* Comparison Section */
        .dgca-comparison {
            padding: 80px 0;
            background: white;
        }

        .dgca-comparison-table {
            width: 100%;
            border-collapse: collapse;
            background: white;
            box-shadow: 0 4px 12px rgba(0,0,0,0.08);
            border-radius: 8px;
            overflow: hidden;
        }

        .dgca-comparison-table th {
            background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
            color: white;
            padding: 20px;
            text-align: left;
            font-weight: 600;
        }

        .dgca-comparison-table td {
            padding: 18px 20px;
            border-bottom: 1px solid #eee;
        }

        .dgca-comparison-table tr:last-child td {
            border-bottom: none;
        }

        .dgca-comparison-table tbody tr:hover {
            background: #f8f9fa;
        }

        .dgca-checkmark {
            color: #28a745;
            font-weight: bold;
            font-size: 18px;
        }

        .dgca-crossmark {
            color: #dc3545;
            font-weight: bold;
            font-size: 18px;
        }

        /* CTA Section */
        .dgca-cta {
            background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
            color: white;
            padding: 60px 0;
            text-align: center;
        }

        .dgca-cta-title {
            font-size: 32px;
            font-weight: 700;
            margin-bottom: 20px;
        }

        .dgca-cta-desc {
            font-size: 16px;
            margin-bottom: 30px;
            opacity: 0.95;
        }

        /* Footer */
        .dgca-footer {
            background: #222;
            color: #aaa;
            padding: 50px 0 30px;
        }

        .dgca-footer-content {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            gap: 40px;
            margin-bottom: 40px;
        }

        .dgca-footer-section h4 {
            color: white;
            margin-bottom: 15px;
            font-size: 14px;
            font-weight: 600;
        }

        .dgca-footer-link {
            display: block;
            color: #aaa;
            text-decoration: none;
            font-size: 13px;
            margin-bottom: 10px;
            transition: color 0.3s ease;
        }

        .dgca-footer-link:hover {
            color: white;
        }

        .dgca-footer-bottom {
            border-top: 1px solid #444;
            padding-top: 20px;
            text-align: center;
            font-size: 13px;
            color: #888;
        }

        /* Responsive Design */
        @media (max-width: 768px) {
            .dgca-hero-title {
                font-size: 32px;
            }

            .dgca-hero-subtitle {
                font-size: 16px;
            }

            .dgca-hero {
                padding: 50px 0;
            }

            .dgca-nav {
                gap: 15px;
                font-size: 12px;
            }

            .dgca-features, .dgca-highlights, .dgca-changelog, .dgca-comparison {
                padding: 50px 0;
            }

            .dgca-section-title {
                font-size: 28px;
            }

            .dgca-highlights-content {
                grid-template-columns: 1fr;
                gap: 30px;
            }

            .dgca-highlight-image {
                height: 250px;
            }

            .dgca-comparison-table {
                font-size: 13px;
            }

            .dgca-comparison-table th,
            .dgca-comparison-table td {
                padding: 12px;
            }

            .dgca-hero-buttons {
                gap: 10px;
            }

            .dgca-btn-primary,
            .dgca-btn-secondary {
                padding: 12px 25px;
                font-size: 14px;
            }
        }

        @media (max-width: 480px) {
            .dgca-header-inner {
                flex-direction: column;
                gap: 15px;
            }

            .dgca-nav {
                flex-wrap: wrap;
                justify-content: center;
                gap: 10px;
            }

            .dgca-hero-title {
                font-size: 24px;
            }

            .dgca-section-title {
                font-size: 22px;
            }

            .dgca-features-grid {
                grid-template-columns: 1fr;
            }

            .dgca-highlight-text h2 {
                font-size: 24px;
            }

            .dgca-cta-title {
                font-size: 24px;
            }
        }