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

        html {
            scroll-behavior: smooth;
        }

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

        /* 导航栏样式 */
        .xcw5-navbar {
            background: linear-gradient(135deg, #0084ff 0%, #0073e6 100%);
            padding: 1rem 0;
            position: sticky;
            top: 0;
            z-index: 1000;
            box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
        }

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

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

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

        .xcw5-logo-text {
            color: white;
        }

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

        .xcw5-nav-link {
            color: white;
            text-decoration: none;
            font-size: 0.95rem;
            font-weight: 500;
            transition: all 0.3s ease;
            padding: 0.5rem 1rem;
            border-radius: 4px;
        }

        .xcw5-nav-link:hover {
            background-color: rgba(255, 255, 255, 0.2);
            transform: translateY(-2px);
        }

        /* 英雄区域 */
        .xcw5-hero-section {
            background: linear-gradient(135deg, #0084ff 0%, #0073e6 100%);
            color: white;
            padding: 6rem 2rem;
            text-align: center;
        }

        .xcw5-hero-content {
            max-width: 900px;
            margin: 0 auto;
        }

        .xcw5-hero-title {
            font-size: 3rem;
            margin-bottom: 1rem;
            font-weight: bold;
            text-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
        }

        .xcw5-hero-subtitle {
            font-size: 1.3rem;
            margin-bottom: 2rem;
            opacity: 0.95;
        }

        .xcw5-hero-description {
            font-size: 1rem;
            margin-bottom: 2.5rem;
            opacity: 0.9;
            line-height: 1.8;
        }

        .xcw5-btn-primary {
            display: inline-block;
            background-color: white;
            color: #0084ff;
            padding: 1rem 2.5rem;
            border-radius: 8px;
            font-weight: bold;
            text-decoration: none;
            transition: all 0.3s ease;
            margin: 0.5rem;
            border: none;
            cursor: pointer;
            font-size: 1rem;
        }

        .xcw5-btn-primary:hover {
            transform: translateY(-3px);
            box-shadow: 0 8px 16px rgba(0, 0, 0, 0.2);
        }

        .xcw5-btn-secondary {
            display: inline-block;
            background-color: transparent;
            color: white;
            padding: 1rem 2.5rem;
            border-radius: 8px;
            font-weight: bold;
            text-decoration: none;
            transition: all 0.3s ease;
            margin: 0.5rem;
            border: 2px solid white;
            cursor: pointer;
            font-size: 1rem;
        }

        .xcw5-btn-secondary:hover {
            background-color: white;
            color: #0084ff;
            transform: translateY(-3px);
        }

        /* 主内容区域 */
        .xcw5-main-content {
            max-width: 1200px;
            margin: -4rem auto 0;
            padding: 0 2rem;
            position: relative;
            z-index: 10;
        }

        .xcw5-intro-card {
            background: white;
            padding: 3rem;
            border-radius: 12px;
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
            margin-bottom: 3rem;
        }

        .xcw5-intro-title {
            font-size: 2rem;
            margin-bottom: 1rem;
            color: #0084ff;
        }

        .xcw5-intro-text {
            font-size: 1rem;
            line-height: 1.8;
            color: #555;
        }

        /* 功能特性区 */
        .xcw5-features-section {
            padding: 4rem 2rem;
            background-color: white;
            margin: 2rem 0;
        }

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

        .xcw5-features-title {
            font-size: 2.5rem;
            text-align: center;
            margin-bottom: 3rem;
            color: #333;
        }

        .xcw5-features-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: 2rem;
        }

        .xcw5-feature-card {
            padding: 2rem;
            border-radius: 12px;
            background: linear-gradient(135deg, #f0f4ff 0%, #e8f1ff 100%);
            border-left: 4px solid #0084ff;
            transition: all 0.3s ease;
        }

        .xcw5-feature-card:hover {
            transform: translateY(-8px);
            box-shadow: 0 8px 24px rgba(0, 132, 255, 0.15);
        }

        .xcw5-feature-icon {
            font-size: 2.5rem;
            margin-bottom: 1rem;
        }

        .xcw5-feature-name {
            font-size: 1.3rem;
            font-weight: bold;
            margin-bottom: 0.5rem;
            color: #333;
        }

        .xcw5-feature-desc {
            font-size: 0.95rem;
            color: #666;
            line-height: 1.6;
        }

        /* 下载区域 */
        .xcw5-download-section {
            background: linear-gradient(135deg, #0084ff 0%, #0073e6 100%);
            padding: 4rem 2rem;
            color: white;
            text-align: center;
        }

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

        .xcw5-download-title {
            font-size: 2.5rem;
            margin-bottom: 1rem;
        }

        .xcw5-download-subtitle {
            font-size: 1.1rem;
            margin-bottom: 2rem;
            opacity: 0.9;
        }

        .xcw5-download-links {
            display: flex;
            justify-content: center;
            gap: 1.5rem;
            flex-wrap: wrap;
        }

        .xcw5-download-btn {
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            background-color: white;
            color: #0084ff;
            padding: 1rem 1.5rem;
            border-radius: 8px;
            font-weight: bold;
            text-decoration: none;
            transition: all 0.3s ease;
            font-size: 0.95rem;
        }

        .xcw5-download-btn:hover {
            transform: translateY(-3px);
            box-shadow: 0 8px 16px rgba(0, 0, 0, 0.2);
        }

        /* 关于我们区 */
        .xcw5-about-section {
            max-width: 1200px;
            margin: 3rem auto;
            padding: 0 2rem;
        }

        .xcw5-about-card {
            background: white;
            padding: 3rem;
            border-radius: 12px;
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
            margin-bottom: 2rem;
        }

        .xcw5-about-title {
            font-size: 2rem;
            margin-bottom: 1.5rem;
            color: #0084ff;
        }

        .xcw5-about-text {
            font-size: 1rem;
            line-height: 1.8;
            color: #555;
            margin-bottom: 1rem;
        }

        /* 常见问题 */
        .xcw5-faq-section {
            background-color: #f8f9fa;
            padding: 4rem 2rem;
        }

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

        .xcw5-faq-title {
            font-size: 2.5rem;
            text-align: center;
            margin-bottom: 3rem;
            color: #333;
        }

        .xcw5-faq-item {
            background: white;
            padding: 2rem;
            margin-bottom: 1.5rem;
            border-radius: 8px;
            box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
        }

        .xcw5-faq-question {
            font-size: 1.1rem;
            font-weight: bold;
            color: #0084ff;
            margin-bottom: 0.5rem;
        }

        .xcw5-faq-answer {
            font-size: 0.95rem;
            color: #666;
            line-height: 1.6;
        }

        /* 联系区 */
        .xcw5-contact-section {
            background: linear-gradient(135deg, #0084ff 0%, #0073e6 100%);
            padding: 4rem 2rem;
            color: white;
        }

        .xcw5-contact-container {
            max-width: 1200px;
            margin: 0 auto;
            text-align: center;
        }

        .xcw5-contact-title {
            font-size: 2.5rem;
            margin-bottom: 1rem;
        }

        .xcw5-contact-text {
            font-size: 1.1rem;
            margin-bottom: 2rem;
            opacity: 0.9;
        }

        .xcw5-contact-links {
            display: flex;
            justify-content: center;
            gap: 2rem;
            flex-wrap: wrap;
        }

        .xcw5-contact-link {
            color: white;
            text-decoration: none;
            font-size: 1rem;
            padding: 0.5rem 1rem;
            border-bottom: 2px solid transparent;
            transition: all 0.3s ease;
        }

        .xcw5-contact-link:hover {
            border-bottom-color: white;
        }

        /* 页脚 */
        .xcw5-footer {
            background-color: #1a1a1a;
            color: white;
            padding: 3rem 2rem 1rem;
        }

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

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

        .xcw5-footer-section {
            padding: 1rem 0;
        }

        .xcw5-footer-title {
            font-size: 1.1rem;
            font-weight: bold;
            margin-bottom: 1rem;
            color: #0084ff;
        }

        .xcw5-footer-link {
            display: block;
            color: #ccc;
            text-decoration: none;
            margin-bottom: 0.5rem;
            font-size: 0.9rem;
            transition: all 0.3s ease;
        }

        .xcw5-footer-link:hover {
            color: #0084ff;
            padding-left: 0.5rem;
        }

        .xcw5-footer-bottom {
            border-top: 1px solid #333;
            padding-top: 2rem;
            text-align: center;
            color: #888;
            font-size: 0.85rem;
        }

        .xcw5-copyright {
            margin-bottom: 1rem;
        }

        /* 响应式设计 */
        @media (max-width: 768px) {
            .xcw5-hero-title {
                font-size: 2rem;
            }

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

            .xcw5-nav-menu {
                gap: 1rem;
            }

            .xcw5-nav-link {
                font-size: 0.85rem;
                padding: 0.4rem 0.7rem;
            }

            .xcw5-features-title,
            .xcw5-faq-title,
            .xcw5-contact-title,
            .xcw5-download-title {
                font-size: 1.8rem;
            }

            .xcw5-intro-card,
            .xcw5-about-card {
                padding: 2rem;
            }

            .xcw5-intro-title,
            .xcw5-about-title {
                font-size: 1.5rem;
            }

            .xcw5-download-links {
                flex-direction: column;
                align-items: center;
            }

            .xcw5-download-btn {
                width: 100%;
                justify-content: center;
            }

            .xcw5-contact-links {
                flex-direction: column;
                gap: 1rem;
            }
        }

        @media (max-width: 480px) {
            .xcw5-nav-container {
                padding: 0 1rem;
            }

            .xcw5-nav-menu {
                gap: 0.5rem;
            }

            .xcw5-hero-section {
                padding: 3rem 1rem;
            }

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

            .xcw5-main-content {
                margin-top: -2rem;
                padding: 0 1rem;
            }

            .xcw5-intro-card {
                padding: 1.5rem;
            }

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

            .xcw5-hero-subtitle {
                font-size: 0.9rem;
            }

            .xcw5-btn-primary,
            .xcw5-btn-secondary {
                padding: 0.8rem 2rem;
                font-size: 0.9rem;
            }
        }