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

        html, body {
            width: 100%;
            height: 100%;
            font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Helvetica Neue', Arial, sans-serif;
            color: #333;
            line-height: 1.6;
        }

        a {
            color: #0066cc;
            text-decoration: none;
            transition: color 0.3s ease;
        }

        a:hover {
            color: #0052a3;
        }

        /* 导航栏样式 */
        .gcs5s-navbar-wrapper {
            background: linear-gradient(135deg, #ffffff 0%, #f8f9fa 100%);
            box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
            position: sticky;
            top: 0;
            z-index: 100;
        }

        .gcs5s-navbar-container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            height: 70px;
        }

        .gcs5s-logo-section {
            display: flex;
            align-items: center;
            gap: 10px;
            font-weight: 600;
            color: #333;
            font-size: 18px;
        }

        .gcs5s-logo-section img {
            height: 40px;
            width: auto;
        }

        .gcs5s-nav-menu {
            display: flex;
            gap: 30px;
            align-items: center;
        }

        .gcs5s-nav-link {
            color: #333;
            font-size: 14px;
            font-weight: 500;
            padding: 8px 0;
            border-bottom: 2px solid transparent;
            transition: all 0.3s ease;
        }

        .gcs5s-nav-link:hover {
            color: #0066cc;
            border-bottom-color: #0066cc;
        }

        /* 英雄区域 */
        .gcs5s-hero-section {
            background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
            color: white;
            padding: 80px 20px;
            text-align: center;
        }

        .gcs5s-hero-content {
            max-width: 800px;
            margin: 0 auto;
        }

        .gcs5s-hero-title {
            font-size: 48px;
            font-weight: 700;
            margin-bottom: 20px;
            line-height: 1.2;
        }

        .gcs5s-hero-subtitle {
            font-size: 18px;
            margin-bottom: 40px;
            opacity: 0.95;
            line-height: 1.6;
        }

        .gcs5s-cta-group {
            display: flex;
            gap: 20px;
            justify-content: center;
            flex-wrap: wrap;
        }

        .gcs5s-btn-primary {
            background: #ff6b6b;
            color: white;
            padding: 16px 40px;
            border: none;
            border-radius: 8px;
            font-size: 16px;
            font-weight: 600;
            cursor: pointer;
            transition: all 0.3s ease;
            box-shadow: 0 4px 15px rgba(255, 107, 107, 0.4);
        }

        .gcs5s-btn-primary:hover {
            background: #ff5252;
            transform: translateY(-2px);
            box-shadow: 0 6px 20px rgba(255, 107, 107, 0.6);
        }

        .gcs5s-btn-secondary {
            background: white;
            color: #667eea;
            padding: 16px 40px;
            border: 2px solid white;
            border-radius: 8px;
            font-size: 16px;
            font-weight: 600;
            cursor: pointer;
            transition: all 0.3s ease;
        }

        .gcs5s-btn-secondary:hover {
            background: transparent;
            color: white;
            transform: translateY(-2px);
        }

        /* 主要内容区域 */
        .gcs5s-main-content {
            max-width: 1200px;
            margin: 0 auto;
            padding: 60px 20px;
        }

        /* 功能特性区域 */
        .gcs5s-features-section {
            margin-bottom: 80px;
        }

        .gcs5s-section-title {
            font-size: 36px;
            font-weight: 700;
            margin-bottom: 50px;
            text-align: center;
            color: #333;
        }

        .gcs5s-section-title span {
            color: #667eea;
        }

        .gcs5s-features-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: 30px;
        }

        .gcs5s-feature-card {
            background: #f8f9fa;
            padding: 40px 30px;
            border-radius: 12px;
            text-align: center;
            transition: all 0.3s ease;
            border: 1px solid #e9ecef;
        }

        .gcs5s-feature-card:hover {
            transform: translateY(-8px);
            box-shadow: 0 12px 30px rgba(102, 126, 234, 0.15);
            border-color: #667eea;
        }

        .gcs5s-feature-icon {
            font-size: 48px;
            margin-bottom: 20px;
            display: inline-block;
        }

        .gcs5s-feature-title {
            font-size: 18px;
            font-weight: 600;
            margin-bottom: 12px;
            color: #333;
        }

        .gcs5s-feature-desc {
            font-size: 14px;
            color: #666;
            line-height: 1.8;
        }

        /* 平台兼容性区域 */
        .gcs5s-compatibility-section {
            background: #f8f9fa;
            padding: 60px 20px;
            margin-bottom: 0;
            border-radius: 12px;
        }

        .gcs5s-compatibility-content {
            max-width: 1200px;
            margin: 0 auto;
        }

        .gcs5s-compatibility-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 30px;
            margin-top: 40px;
        }

        .gcs5s-platform-card {
            background: white;
            padding: 30px;
            border-radius: 8px;
            border-left: 4px solid #667eea;
            box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
        }

        .gcs5s-platform-name {
            font-size: 20px;
            font-weight: 600;
            margin-bottom: 15px;
            color: #333;
        }

        .gcs5s-platform-specs {
            font-size: 13px;
            color: #666;
            line-height: 1.8;
        }

        .gcs5s-platform-specs li {
            list-style: none;
            padding: 5px 0;
        }

        .gcs5s-platform-specs li:before {
            content: "✓ ";
            color: #667eea;
            font-weight: 600;
            margin-right: 8px;
        }

        /* 安装说明区域 */
        .gcs5s-install-section {
            margin: 80px 0;
        }

        .gcs5s-steps-container {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            gap: 30px;
            margin-top: 50px;
        }

        .gcs5s-step-card {
            text-align: center;
            position: relative;
            padding: 30px 20px;
        }

        .gcs5s-step-number {
            background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
            color: white;
            width: 60px;
            height: 60px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 28px;
            font-weight: 700;
            margin: 0 auto 20px;
        }

        .gcs5s-step-title {
            font-size: 16px;
            font-weight: 600;
            margin-bottom: 10px;
            color: #333;
        }

        .gcs5s-step-desc {
            font-size: 13px;
            color: #666;
            line-height: 1.6;
        }

        /* 功能对比区域 */
        .gcs5s-comparison-section {
            background: white;
            padding: 60px 20px;
            margin-bottom: 0;
        }

        .gcs5s-comparison-table {
            max-width: 1000px;
            margin: 40px auto;
            border-collapse: collapse;
            width: 100%;
        }

        .gcs5s-comparison-table thead {
            background: #f8f9fa;
        }

        .gcs5s-comparison-table th {
            padding: 20px;
            text-align: left;
            font-weight: 600;
            color: #333;
            border-bottom: 2px solid #e9ecef;
        }

        .gcs5s-comparison-table td {
            padding: 20px;
            border-bottom: 1px solid #e9ecef;
            color: #666;
        }

        .gcs5s-comparison-table tr:hover {
            background: #f8f9fa;
        }

        .gcs5s-check-icon {
            color: #28a745;
            font-weight: 700;
            font-size: 18px;
        }

        /* FAQ区域 */
        .gcs5s-faq-section {
            max-width: 800px;
            margin: 80px auto;
        }

        .gcs5s-faq-item {
            margin-bottom: 20px;
            border: 1px solid #e9ecef;
            border-radius: 8px;
            overflow: hidden;
        }

        .gcs5s-faq-question {
            background: #f8f9fa;
            padding: 20px;
            cursor: pointer;
            font-weight: 600;
            color: #333;
            display: flex;
            justify-content: space-between;
            align-items: center;
            transition: all 0.3s ease;
        }

        .gcs5s-faq-question:hover {
            background: #e9ecef;
            color: #667eea;
        }

        .gcs5s-faq-answer {
            padding: 20px;
            background: white;
            color: #666;
            display: none;
            line-height: 1.8;
        }

        .gcs5s-faq-answer.active {
            display: block;
        }

        .gcs5s-faq-toggle {
            font-size: 20px;
            transition: transform 0.3s ease;
        }

        .gcs5s-faq-toggle.active {
            transform: rotate(180deg);
        }

        /* 页脚 */
        .gcs5s-footer-section {
            background: #2c3e50;
            color: #ecf0f1;
            padding: 60px 20px 30px;
        }

        .gcs5s-footer-content {
            max-width: 1200px;
            margin: 0 auto;
        }

        .gcs5s-footer-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            gap: 40px;
            margin-bottom: 40px;
        }

        .gcs5s-footer-column h4 {
            font-size: 16px;
            font-weight: 600;
            margin-bottom: 20px;
            color: white;
        }

        .gcs5s-footer-link {
            color: #bdc3c7;
            font-size: 14px;
            line-height: 2;
            transition: color 0.3s ease;
        }

        .gcs5s-footer-link:hover {
            color: white;
        }

        .gcs5s-footer-bottom {
            border-top: 1px solid #34495e;
            padding-top: 30px;
            text-align: center;
            color: #95a5a6;
            font-size: 13px;
        }

        /* 响应式设计 */
        @media (max-width: 768px) {
            .gcs5s-hero-title {
                font-size: 32px;
            }

            .gcs5s-hero-subtitle {
                font-size: 16px;
            }

            .gcs5s-section-title {
                font-size: 28px;
            }

            .gcs5s-navbar-container {
                flex-direction: column;
                height: auto;
                padding: 15px 20px;
                gap: 15px;
            }

            .gcs5s-nav-menu {
                width: 100%;
                flex-wrap: wrap;
                justify-content: center;
                gap: 15px;
            }

            .gcs5s-cta-group {
                flex-direction: column;
            }

            .gcs5s-btn-primary, .gcs5s-btn-secondary {
                width: 100%;
            }

            .gcs5s-comparison-table {
                font-size: 13px;
            }

            .gcs5s-comparison-table th,
            .gcs5s-comparison-table td {
                padding: 12px;
            }

            .gcs5s-features-grid {
                grid-template-columns: 1fr;
            }

            .gcs5s-compatibility-grid {
                grid-template-columns: 1fr;
            }
        }

        @media (max-width: 480px) {
            .gcs5s-hero-title {
                font-size: 24px;
            }

            .gcs5s-section-title {
                font-size: 22px;
            }

            .gcs5s-nav-menu {
                gap: 10px;
            }

            .gcs5s-nav-link {
                font-size: 12px;
            }
        }