* {
            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: #f9f9f9;
        }

        /* 导航栏样式 */
        .dgca-navbar {
            background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
            box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
            position: sticky;
            top: 0;
            z-index: 1000;
        }

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

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

        .dgca-logo img {
            height: 40px;
            margin-right: 12px;
        }

        .dgca-nav-menu {
            display: flex;
            list-style: none;
            gap: 30px;
        }

        .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;
            text-decoration: underline;
        }

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

        /* 英雄区域 */
        .dgca-hero {
            background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
            color: white;
            padding: 80px 20px;
            text-align: center;
            margin-bottom: 60px;
        }

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

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

        .dgca-hero-description {
            font-size: 18px;
            opacity: 0.95;
            margin-bottom: 30px;
            line-height: 1.8;
        }

        .dgca-hero-cta {
            display: inline-block;
            background-color: #ff6b6b;
            color: white;
            padding: 14px 40px;
            text-decoration: none;
            border-radius: 50px;
            font-size: 16px;
            font-weight: 600;
            transition: all 0.3s ease;
            box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
        }

        .dgca-hero-cta:hover {
            background-color: #ff5252;
            transform: translateY(-2px);
            box-shadow: 0 6px 16px rgba(0, 0, 0, 0.3);
        }

        /* 内容区域 */
        .dgca-content-section {
            background: white;
            padding: 60px 20px;
            margin-bottom: 40px;
            border-radius: 8px;
            box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
        }

        .dgca-main-heading {
            font-size: 36px;
            font-weight: 700;
            color: #333;
            margin-bottom: 30px;
            text-align: center;
            position: relative;
            padding-bottom: 20px;
        }

        .dgca-main-heading::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 50%;
            transform: translateX(-50%);
            width: 60px;
            height: 4px;
            background: linear-gradient(90deg, #667eea, #764ba2);
            border-radius: 2px;
        }

        .dgca-section-title {
            font-size: 28px;
            font-weight: 600;
            color: #333;
            margin-top: 40px;
            margin-bottom: 20px;
            border-left: 4px solid #667eea;
            padding-left: 15px;
        }

        .dgca-section-content {
            color: #555;
            line-height: 1.8;
            margin-bottom: 30px;
        }

        .dgca-step-list {
            list-style: none;
            margin: 20px 0;
        }

        .dgca-step-item {
            background: #f5f7ff;
            padding: 20px;
            margin-bottom: 15px;
            border-radius: 6px;
            border-left: 4px solid #667eea;
            transition: all 0.3s ease;
        }

        .dgca-step-item:hover {
            background: #eff2ff;
            transform: translateX(5px);
        }

        .dgca-step-number {
            display: inline-block;
            background: linear-gradient(135deg, #667eea, #764ba2);
            color: white;
            width: 32px;
            height: 32px;
            border-radius: 50%;
            text-align: center;
            line-height: 32px;
            font-weight: bold;
            margin-right: 12px;
        }

        .dgca-step-text {
            display: inline-block;
            vertical-align: middle;
            font-weight: 500;
            color: #333;
        }

        /* 功能卡片 */
        .dgca-features-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 25px;
            margin: 40px 0;
        }

        .dgca-feature-card {
            background: white;
            padding: 30px;
            border-radius: 8px;
            box-shadow: 0 2px 12px rgba(0, 0, 0, 0.08);
            transition: all 0.3s ease;
            text-align: center;
            border-top: 4px solid #667eea;
        }

        .dgca-feature-card:hover {
            transform: translateY(-8px);
            box-shadow: 0 8px 20px rgba(0, 0, 0, 0.12);
        }

        .dgca-feature-icon {
            font-size: 48px;
            margin-bottom: 15px;
        }

        .dgca-feature-title {
            font-size: 20px;
            font-weight: 600;
            color: #333;
            margin-bottom: 12px;
        }

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

        /* 对比表 */
        .dgca-comparison-table {
            width: 100%;
            border-collapse: collapse;
            margin: 30px 0;
            background: white;
        }

        .dgca-comparison-table th {
            background: linear-gradient(135deg, #667eea, #764ba2);
            color: white;
            padding: 15px;
            text-align: left;
            font-weight: 600;
        }

        .dgca-comparison-table td {
            padding: 15px;
            border-bottom: 1px solid #e0e0e0;
        }

        .dgca-comparison-table tr:nth-child(even) {
            background: #f9f9f9;
        }

        .dgca-comparison-table tr:hover {
            background: #f5f7ff;
        }

        .dgca-check-icon {
            color: #4caf50;
            font-weight: bold;
            font-size: 18px;
        }

        .dgca-cross-icon {
            color: #ff6b6b;
            font-weight: bold;
            font-size: 18px;
        }

        /* CTA 区域 */
        .dgca-cta-section {
            background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
            color: white;
            padding: 60px 20px;
            border-radius: 8px;
            text-align: center;
            margin: 60px 0;
        }

        .dgca-cta-title {
            font-size: 32px;
            font-weight: 700;
            margin-bottom: 15px;
        }

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

        .dgca-cta-button {
            display: inline-block;
            background-color: #ff6b6b;
            color: white;
            padding: 14px 40px;
            text-decoration: none;
            border-radius: 50px;
            font-size: 16px;
            font-weight: 600;
            transition: all 0.3s ease;
            box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
            margin: 0 10px;
        }

        .dgca-cta-button:hover {
            background-color: #ff5252;
            transform: translateY(-2px);
            box-shadow: 0 6px 16px rgba(0, 0, 0, 0.3);
        }

        .dgca-cta-button-secondary {
            background-color: transparent;
            border: 2px solid white;
        }

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

        /* FAQ 部分 */
        .dgca-faq-item {
            background: white;
            margin-bottom: 15px;
            border-radius: 6px;
            overflow: hidden;
            box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
        }

        .dgca-faq-question {
            background: #f5f7ff;
            padding: 20px;
            cursor: pointer;
            font-weight: 600;
            color: #333;
            display: flex;
            justify-content: space-between;
            align-items: center;
            transition: background 0.3s ease;
        }

        .dgca-faq-question:hover {
            background: #eff2ff;
        }

        .dgca-faq-answer {
            padding: 20px;
            color: #666;
            display: none;
            line-height: 1.8;
        }

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

        .dgca-faq-toggle {
            font-size: 20px;
            transition: transform 0.3s ease;
        }

        .dgca-faq-toggle.active {
            transform: rotate(180deg);
        }

        /* 页脚 */
        .dgca-footer {
            background: #2c3e50;
            color: white;
            padding: 40px 20px;
            margin-top: 80px;
        }

        .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-title {
            font-size: 16px;
            font-weight: 600;
            margin-bottom: 15px;
        }

        .dgca-footer-link {
            color: #bbb;
            text-decoration: none;
            display: block;
            margin-bottom: 10px;
            font-size: 14px;
            transition: color 0.3s ease;
        }

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

        .dgca-footer-bottom {
            text-align: center;
            padding-top: 30px;
            margin-top: 30px;
            border-top: 1px solid #444;
            color: #999;
            font-size: 14px;
        }

        /* 响应式设计 */
        @media (max-width: 768px) {
            .dgca-hero-title {
                font-size: 32px;
            }

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

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

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

            .dgca-nav-menu {
                gap: 15px;
            }

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

            .dgca-navbar-container {
                height: 60px;
            }

            .dgca-logo img {
                height: 32px;
            }

            .dgca-hero {
                padding: 50px 15px;
            }

            .dgca-content-section {
                padding: 30px 15px;
            }

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

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

            .dgca-comparison-table {
                font-size: 12px;
            }

            .dgca-comparison-table th,
            .dgca-comparison-table td {
                padding: 10px;
            }
        }

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

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

            .dgca-nav-link {
                font-size: 11px;
            }

            .dgca-logo {
                font-size: 16px;
            }

            .dgca-logo img {
                height: 28px;
                margin-right: 8px;
            }

            .dgca-cta-button {
                padding: 12px 30px;
                font-size: 14px;
                margin: 5px;
            }
        }