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

        html, body {
            width: 100%;
            height: 100%;
        }

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

        /* 导航栏样式 */
        .xcw5-navbar {
            background: linear-gradient(135deg, #0088cc 0%, #005fa3 100%);
            padding: 0;
            box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
            position: sticky;
            top: 0;
            z-index: 100;
        }

        .xcw5-navbar-container {
            max-width: 1200px;
            margin: 0 auto;
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 1rem 2rem;
        }

        .xcw5-navbar-logo {
            display: flex;
            align-items: center;
            gap: 0.5rem;
            font-weight: bold;
            color: white;
            font-size: 1.5rem;
            text-decoration: none;
        }

        .xcw5-navbar-logo img {
            height: 40px;
            width: auto;
        }

        .xcw5-navbar-menu {
            display: flex;
            gap: 2rem;
            list-style: none;
        }

        .xcw5-nav-link {
            color: white;
            text-decoration: none;
            font-size: 1rem;
            transition: opacity 0.3s ease;
            padding: 0.5rem 0;
        }

        .xcw5-nav-link:hover {
            opacity: 0.8;
            border-bottom: 2px solid white;
        }

        /* 主容器 */
        .xcw5-container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 2rem;
        }

        /* 英雄区域 */
        .xcw5-hero {
            background: linear-gradient(135deg, #0088cc 0%, #005fa3 100%);
            color: white;
            padding: 4rem 2rem;
            text-align: center;
            margin-bottom: 3rem;
        }

        .xcw5-hero-content {
            max-width: 800px;
            margin: 0 auto;
        }

        .xcw5-hero h1 {
            font-size: 2.5rem;
            margin-bottom: 1rem;
            font-weight: 700;
        }

        .xcw5-hero-description {
            font-size: 1.2rem;
            margin-bottom: 2rem;
            opacity: 0.95;
        }

        /* 下载按钮组 */
        .xcw5-download-group {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            gap: 1.5rem;
            margin: 2rem 0;
        }

        .xcw5-download-btn {
            display: inline-block;
            padding: 1rem 2rem;
            background-color: #34c759;
            color: white;
            text-decoration: none;
            border-radius: 8px;
            font-weight: 600;
            font-size: 1.1rem;
            transition: all 0.3s ease;
            border: 2px solid transparent;
            cursor: pointer;
            text-align: center;
        }

        .xcw5-download-btn:hover {
            background-color: #2db649;
            transform: translateY(-2px);
            box-shadow: 0 4px 12px rgba(52, 199, 89, 0.3);
        }

        .xcw5-download-btn-secondary {
            background-color: white;
            color: #0088cc;
            border: 2px solid #0088cc;
        }

        .xcw5-download-btn-secondary:hover {
            background-color: #f0f8ff;
            transform: translateY(-2px);
            box-shadow: 0 4px 12px rgba(0, 136, 204, 0.2);
        }

        /* 主内容区 */
        .xcw5-main-content {
            background: white;
            padding: 3rem 2rem;
            border-radius: 8px;
            box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
            margin-bottom: 3rem;
        }

        .xcw5-main-content h2 {
            color: #0088cc;
            font-size: 1.8rem;
            margin-bottom: 1.5rem;
            border-bottom: 3px solid #0088cc;
            padding-bottom: 0.5rem;
        }

        .xcw5-main-content h3 {
            color: #005fa3;
            font-size: 1.3rem;
            margin-top: 2rem;
            margin-bottom: 1rem;
        }

        .xcw5-main-content p {
            margin-bottom: 1rem;
            font-size: 1.05rem;
            color: #555;
        }

        .xcw5-feature-list {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 1.5rem;
            margin: 2rem 0;
        }

        .xcw5-feature-item {
            background: #f0f8ff;
            padding: 1.5rem;
            border-radius: 8px;
            border-left: 4px solid #0088cc;
            transition: all 0.3s ease;
        }

        .xcw5-feature-item:hover {
            background: #e6f3ff;
            transform: translateX(5px);
        }

        .xcw5-feature-item h4 {
            color: #0088cc;
            margin-bottom: 0.5rem;
            font-size: 1.1rem;
        }

        .xcw5-feature-item p {
            color: #666;
            font-size: 0.95rem;
        }

        /* 版本信息 */
        .xcw5-version-info {
            background: #f8f9fa;
            padding: 2rem;
            border-radius: 8px;
            margin: 2rem 0;
        }

        .xcw5-version-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            gap: 1.5rem;
            margin-top: 1.5rem;
        }

        .xcw5-version-card {
            background: white;
            padding: 1.5rem;
            border-radius: 6px;
            border: 1px solid #e0e0e0;
            text-align: center;
        }

        .xcw5-version-label {
            color: #0088cc;
            font-weight: 600;
            font-size: 0.9rem;
            text-transform: uppercase;
            margin-bottom: 0.5rem;
        }

        .xcw5-version-value {
            color: #333;
            font-size: 1.3rem;
            font-weight: 700;
        }

        /* CTA区域 */
        .xcw5-cta-section {
            background: linear-gradient(135deg, #0088cc 0%, #005fa3 100%);
            color: white;
            padding: 3rem 2rem;
            border-radius: 8px;
            text-align: center;
            margin-bottom: 3rem;
        }

        .xcw5-cta-section h2 {
            color: white;
            font-size: 2rem;
            margin-bottom: 1rem;
            border-bottom: none;
        }

        .xcw5-cta-section p {
            color: rgba(255, 255, 255, 0.9);
            font-size: 1.1rem;
            margin-bottom: 2rem;
            max-width: 600px;
            margin-left: auto;
            margin-right: auto;
        }

        .xcw5-cta-btn {
            display: inline-block;
            padding: 1.2rem 2.5rem;
            background-color: #34c759;
            color: white;
            text-decoration: none;
            border-radius: 8px;
            font-weight: 700;
            font-size: 1.2rem;
            transition: all 0.3s ease;
            border: none;
            cursor: pointer;
            box-shadow: 0 4px 12px rgba(52, 199, 89, 0.3);
        }

        .xcw5-cta-btn:hover {
            background-color: #2db649;
            transform: translateY(-3px);
            box-shadow: 0 6px 16px rgba(52, 199, 89, 0.4);
        }

        /* 常见问题 */
        .xcw5-faq-section {
            background: white;
            padding: 3rem 2rem;
            border-radius: 8px;
            box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
            margin-bottom: 3rem;
        }

        .xcw5-faq-section h2 {
            color: #0088cc;
            font-size: 1.8rem;
            margin-bottom: 2rem;
            border-bottom: 3px solid #0088cc;
            padding-bottom: 0.5rem;
        }

        .xcw5-faq-item {
            margin-bottom: 1.5rem;
            border-bottom: 1px solid #e0e0e0;
            padding-bottom: 1.5rem;
        }

        .xcw5-faq-item:last-child {
            border-bottom: none;
        }

        .xcw5-faq-question {
            color: #0088cc;
            font-weight: 600;
            font-size: 1.1rem;
            margin-bottom: 0.8rem;
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
        }

        .xcw5-faq-answer {
            color: #666;
            line-height: 1.8;
            font-size: 0.95rem;
        }

        /* 页脚 */
        .xcw5-footer {
            background: #1a1a1a;
            color: #ccc;
            padding: 3rem 2rem;
            margin-top: 3rem;
            border-top: 3px solid #0088cc;
        }

        .xcw5-footer-container {
            max-width: 1200px;
            margin: 0 auto;
        }

        .xcw5-footer-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 2rem;
            margin-bottom: 2rem;
        }

        .xcw5-footer-column h3 {
            color: white;
            margin-bottom: 1rem;
            font-size: 1.1rem;
        }

        .xcw5-footer-column ul {
            list-style: none;
        }

        .xcw5-footer-column ul li {
            margin-bottom: 0.5rem;
        }

        .xcw5-footer-column a {
            color: #ccc;
            text-decoration: none;
            transition: color 0.3s ease;
        }

        .xcw5-footer-column a:hover {
            color: #0088cc;
        }

        .xcw5-footer-bottom {
            border-top: 1px solid #333;
            padding-top: 2rem;
            text-align: center;
            color: #999;
            font-size: 0.9rem;
        }

        /* 响应式设计 */
        @media (max-width: 768px) {
            .xcw5-navbar-container {
                flex-direction: column;
                gap: 1rem;
                padding: 1rem;
            }

            .xcw5-navbar-menu {
                gap: 1rem;
                flex-direction: column;
                width: 100%;
            }

            .xcw5-nav-link {
                display: block;
                width: 100%;
            }

            .xcw5-hero h1 {
                font-size: 1.8rem;
            }

            .xcw5-hero-description {
                font-size: 1rem;
            }

            .xcw5-download-group {
                grid-template-columns: 1fr;
            }

            .xcw5-feature-list {
                grid-template-columns: 1fr;
            }

            .xcw5-version-grid {
                grid-template-columns: repeat(2, 1fr);
            }

            .xcw5-main-content {
                padding: 1.5rem;
            }

            .xcw5-cta-section h2 {
                font-size: 1.5rem;
            }

            .xcw5-footer-grid {
                grid-template-columns: 1fr;
                gap: 1rem;
            }
        }

        @media (max-width: 480px) {
            .xcw5-hero {
                padding: 2rem 1rem;
            }

            .xcw5-hero h1 {
                font-size: 1.5rem;
            }

            .xcw5-version-grid {
                grid-template-columns: 1fr;
            }

            .xcw5-container {
                padding: 0 1rem;
            }

            .xcw5-main-content {
                padding: 1rem;
            }

            .xcw5-download-btn {
                padding: 0.8rem 1.5rem;
                font-size: 1rem;
            }
        }