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

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

        body {
            background-color: #f8f9fa;
        }

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

        .dgca-header-container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            height: 70px;
        }

        .dgca-logo-section {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 24px;
            font-weight: bold;
            text-decoration: none;
            color: white;
        }

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

        .dgca-nav-menu {
            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;
        }

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

        .dgca-hero-banner {
            background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
            color: white;
            padding: 60px 20px;
            margin: 0 -20px;
            text-align: center;
        }

        .dgca-hero-title {
            font-size: 48px;
            font-weight: bold;
            margin-bottom: 20px;
            line-height: 1.3;
        }

        .dgca-hero-subtitle {
            font-size: 18px;
            margin-bottom: 30px;
            opacity: 0.95;
            max-width: 600px;
            margin-left: auto;
            margin-right: auto;
        }

        .dgca-btn-primary {
            display: inline-block;
            background-color: #ff6b6b;
            color: white;
            padding: 14px 40px;
            border-radius: 5px;
            text-decoration: none;
            font-weight: 600;
            font-size: 16px;
            transition: all 0.3s ease;
            border: none;
            cursor: pointer;
        }

        .dgca-btn-primary:hover {
            background-color: #ff5252;
            transform: translateY(-2px);
            box-shadow: 0 8px 16px rgba(255, 107, 107, 0.3);
        }

        .dgca-content-section {
            background: white;
            padding: 60px 40px;
            margin: 40px 0;
            border-radius: 8px;
            box-shadow: 0 2px 8px rgba(0,0,0,0.05);
        }

        .dgca-main-heading {
            font-size: 36px;
            font-weight: bold;
            color: #667eea;
            margin-bottom: 30px;
            border-left: 4px solid #667eea;
            padding-left: 15px;
        }

        .dgca-section-title {
            font-size: 24px;
            font-weight: bold;
            color: #333;
            margin-top: 40px;
            margin-bottom: 20px;
            border-bottom: 2px solid #667eea;
            padding-bottom: 10px;
        }

        .dgca-subsection-title {
            font-size: 18px;
            font-weight: 600;
            color: #555;
            margin-top: 25px;
            margin-bottom: 15px;
        }

        .dgca-content-text {
            font-size: 16px;
            line-height: 1.8;
            color: #666;
            margin-bottom: 15px;
        }

        .dgca-steps-container {
            margin: 30px 0;
        }

        .dgca-step-item {
            display: flex;
            gap: 20px;
            margin-bottom: 25px;
            padding: 20px;
            background-color: #f8f9fa;
            border-radius: 8px;
            border-left: 4px solid #667eea;
        }

        .dgca-step-number {
            display: flex;
            align-items: center;
            justify-content: center;
            width: 40px;
            height: 40px;
            background-color: #667eea;
            color: white;
            border-radius: 50%;
            font-weight: bold;
            font-size: 18px;
            flex-shrink: 0;
        }

        .dgca-step-content {
            flex: 1;
        }

        .dgca-step-title {
            font-size: 16px;
            font-weight: 600;
            color: #333;
            margin-bottom: 8px;
        }

        .dgca-step-description {
            font-size: 15px;
            color: #666;
            line-height: 1.6;
        }

        .dgca-highlight-box {
            background-color: #e3f2fd;
            border-left: 4px solid #667eea;
            padding: 20px;
            margin: 20px 0;
            border-radius: 4px;
        }

        .dgca-highlight-box strong {
            color: #667eea;
        }

        .dgca-warning-box {
            background-color: #fff3e0;
            border-left: 4px solid #ff9800;
            padding: 20px;
            margin: 20px 0;
            border-radius: 4px;
        }

        .dgca-feature-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 20px;
            margin: 30px 0;
        }

        .dgca-feature-card {
            background: white;
            border: 1px solid #e0e0e0;
            border-radius: 8px;
            padding: 25px;
            text-align: center;
            transition: all 0.3s ease;
        }

        .dgca-feature-card:hover {
            box-shadow: 0 8px 16px rgba(102, 126, 234, 0.1);
            border-color: #667eea;
        }

        .dgca-feature-icon {
            font-size: 40px;
            margin-bottom: 15px;
        }

        .dgca-feature-title {
            font-size: 18px;
            font-weight: 600;
            color: #333;
            margin-bottom: 10px;
        }

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

        .dgca-faq-section {
            margin: 30px 0;
        }

        .dgca-faq-item {
            background: white;
            border: 1px solid #e0e0e0;
            border-radius: 8px;
            margin-bottom: 15px;
            overflow: hidden;
        }

        .dgca-faq-question {
            padding: 20px;
            background-color: #f8f9fa;
            cursor: pointer;
            font-weight: 600;
            color: #333;
            user-select: none;
            transition: background-color 0.3s ease;
        }

        .dgca-faq-question:hover {
            background-color: #e8ebf7;
        }

        .dgca-faq-answer {
            padding: 20px;
            color: #666;
            display: none;
            background-color: white;
        }

        .dgca-faq-item.active .dgca-faq-answer {
            display: block;
        }

        .dgca-cta-section {
            background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
            color: white;
            padding: 60px 40px;
            text-align: center;
            border-radius: 8px;
            margin: 40px 0;
        }

        .dgca-cta-title {
            font-size: 32px;
            font-weight: bold;
            margin-bottom: 15px;
        }

        .dgca-cta-description {
            font-size: 18px;
            margin-bottom: 30px;
            opacity: 0.95;
        }

        .dgca-btn-secondary {
            display: inline-block;
            background-color: white;
            color: #667eea;
            padding: 14px 40px;
            border-radius: 5px;
            text-decoration: none;
            font-weight: 600;
            font-size: 16px;
            transition: all 0.3s ease;
            border: none;
            cursor: pointer;
            margin: 0 10px;
        }

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

        .dgca-footer-wrapper {
            background-color: #2c3e50;
            color: white;
            padding: 40px 20px;
            margin-top: 60px;
        }

        .dgca-footer-content {
            max-width: 1200px;
            margin: 0 auto;
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 30px;
        }

        .dgca-footer-section {
            font-size: 14px;
            line-height: 1.8;
        }

        .dgca-footer-title {
            font-size: 16px;
            font-weight: bold;
            margin-bottom: 15px;
        }

        .dgca-footer-link {
            color: #bdc3c7;
            text-decoration: none;
            transition: color 0.3s ease;
        }

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

        .dgca-footer-bottom {
            max-width: 1200px;
            margin: 30px auto 0;
            padding-top: 20px;
            border-top: 1px solid #34495e;
            text-align: center;
            font-size: 13px;
            color: #95a5a6;
        }

        .dgca-toc-container {
            background-color: #f0f4ff;
            border: 1px solid #d0d9ff;
            border-radius: 8px;
            padding: 25px;
            margin: 30px 0;
        }

        .dgca-toc-title {
            font-size: 16px;
            font-weight: bold;
            color: #667eea;
            margin-bottom: 15px;
        }

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

        .dgca-toc-list li {
            margin-bottom: 10px;
        }

        .dgca-toc-list a {
            color: #667eea;
            text-decoration: none;
            transition: color 0.3s ease;
        }

        .dgca-toc-list a:hover {
            color: #764ba2;
            text-decoration: underline;
        }

        @media (max-width: 768px) {
            .dgca-header-container {
                height: auto;
                padding: 15px 20px;
                flex-direction: column;
                gap: 15px;
            }

            .dgca-hero-title {
                font-size: 32px;
            }

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

            .dgca-main-heading {
                font-size: 28px;
            }

            .dgca-section-title {
                font-size: 20px;
            }

            .dgca-content-section {
                padding: 30px 20px;
            }

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

            .dgca-step-item {
                flex-direction: column;
                align-items: center;
                text-align: center;
            }

            .dgca-step-number {
                width: 45px;
                height: 45px;
            }

            .dgca-nav-menu {
                gap: 15px;
                flex-wrap: wrap;
                justify-content: center;
            }

            .dgca-cta-section {
                padding: 40px 20px;
            }

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

            .dgca-cta-description {
                font-size: 16px;
            }
        }

        @media (max-width: 480px) {
            .dgca-hero-title {
                font-size: 24px;
            }

            .dgca-main-heading {
                font-size: 22px;
            }

            .dgca-section-title {
                font-size: 18px;
            }

            .dgca-nav-menu {
                gap: 10px;
            }

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

            .dgca-btn-primary,
            .dgca-btn-secondary {
                padding: 12px 30px;
                font-size: 14px;
            }
        }