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

        html, body {
            width: 100%;
            height: 100%;
            font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Oxygen', 'Ubuntu', 'Cantarell', 'Fira Sans', 'Droid Sans', 'Helvetica Neue', sans-serif;
            color: #333;
            line-height: 1.6;
            background-color: #f8f9fa;
        }

        /* 导航栏样式 */
        .fv7n6r-navbar {
            width: 100%;
            background: linear-gradient(135deg, #0088cc 0%, #006bb3 100%);
            padding: 0 20px;
            box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
            position: sticky;
            top: 0;
            z-index: 1000;
        }

        .fv7n6r-nav-container {
            max-width: 1200px;
            margin: 0 auto;
            display: flex;
            justify-content: space-between;
            align-items: center;
            height: 70px;
        }

        .fv7n6r-logo-wrapper {
            display: flex;
            align-items: center;
            gap: 12px;
        }

        .fv7n6r-logo {
            height: 45px;
            width: auto;
        }

        .fv7n6r-brand-text {
            color: #fff;
            font-size: 18px;
            font-weight: 700;
            letter-spacing: 0.5px;
        }

        .fv7n6r-nav-menu {
            display: flex;
            gap: 30px;
            align-items: center;
        }

        .fv7n6r-nav-link {
            color: #fff;
            text-decoration: none;
            font-size: 15px;
            font-weight: 500;
            transition: all 0.3s ease;
            padding: 8px 0;
            border-bottom: 2px solid transparent;
        }

        .fv7n6r-nav-link:hover {
            border-bottom-color: #fff;
            opacity: 0.9;
        }

        /* 主容器 */
        .fv7n6r-container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }

        /* Hero区域 */
        .fv7n6r-hero {
            background: linear-gradient(135deg, #0088cc 0%, #006bb3 50%, #004a8f 100%);
            color: #fff;
            padding: 80px 20px;
            text-align: center;
        }

        .fv7n6r-hero-content {
            max-width: 1200px;
            margin: 0 auto;
        }

        .fv7n6r-hero-title {
            font-size: 48px;
            font-weight: 800;
            margin-bottom: 20px;
            line-height: 1.2;
            letter-spacing: 0.5px;
        }

        .fv7n6r-hero-subtitle {
            font-size: 18px;
            margin-bottom: 30px;
            opacity: 0.95;
            font-weight: 300;
        }

        .fv7n6r-hero-badge {
            display: inline-block;
            background: rgba(255, 255, 255, 0.2);
            padding: 8px 16px;
            border-radius: 20px;
            margin-bottom: 25px;
            font-size: 13px;
            font-weight: 600;
            border: 1px solid rgba(255, 255, 255, 0.3);
        }

        /* 下载按钮组 */
        .fv7n6r-download-buttons {
            display: flex;
            gap: 15px;
            justify-content: center;
            flex-wrap: wrap;
            margin-top: 40px;
        }

        .fv7n6r-btn-primary {
            background: linear-gradient(135deg, #fff 0%, #f0f0f0 100%);
            color: #0088cc;
            padding: 16px 40px;
            border: none;
            border-radius: 8px;
            font-size: 16px;
            font-weight: 700;
            cursor: pointer;
            transition: all 0.3s ease;
            box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
            text-decoration: none;
            display: inline-block;
            min-width: 200px;
        }

        .fv7n6r-btn-primary:hover {
            transform: translateY(-2px);
            box-shadow: 0 6px 20px rgba(0, 0, 0, 0.3);
        }

        .fv7n6r-btn-secondary {
            background: transparent;
            color: #fff;
            padding: 16px 40px;
            border: 2px solid #fff;
            border-radius: 8px;
            font-size: 16px;
            font-weight: 700;
            cursor: pointer;
            transition: all 0.3s ease;
            text-decoration: none;
            display: inline-block;
            min-width: 200px;
        }

        .fv7n6r-btn-secondary:hover {
            background: rgba(255, 255, 255, 0.1);
            transform: translateY(-2px);
        }

        /* 主内容区 */
        .fv7n6r-main-content {
            background: #fff;
            padding: 60px 20px;
            margin-top: -40px;
            position: relative;
            z-index: 10;
            border-radius: 12px 12px 0 0;
        }

        .fv7n6r-content-wrapper {
            max-width: 1200px;
            margin: 0 auto;
        }

        /* H1标签 */
        h1.fv7n6r-main-title {
            font-size: 42px;
            color: #0088cc;
            margin-bottom: 30px;
            text-align: center;
            font-weight: 800;
            letter-spacing: 0.3px;
        }

        /* 信息卡片 */
        .fv7n6r-info-cards {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: 25px;
            margin-bottom: 50px;
        }

        .fv7n6r-info-card {
            background: #f8f9fa;
            padding: 30px;
            border-radius: 12px;
            border-left: 4px solid #0088cc;
            transition: all 0.3s ease;
            box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
        }

        .fv7n6r-info-card:hover {
            box-shadow: 0 4px 16px rgba(0, 136, 204, 0.1);
            transform: translateY(-4px);
        }

        .fv7n6r-card-icon {
            font-size: 32px;
            margin-bottom: 12px;
        }

        .fv7n6r-card-title {
            font-size: 18px;
            font-weight: 700;
            color: #333;
            margin-bottom: 10px;
        }

        .fv7n6r-card-desc {
            font-size: 14px;
            color: #666;
            line-height: 1.6;
        }

        /* 版本信息区 */
        .fv7n6r-version-section {
            background: linear-gradient(135deg, #f0f7ff 0%, #e6f2ff 100%);
            padding: 40px;
            border-radius: 12px;
            margin-bottom: 50px;
            border: 2px solid #d0e8ff;
        }

        .fv7n6r-version-title {
            font-size: 24px;
            font-weight: 700;
            color: #0088cc;
            margin-bottom: 25px;
        }

        .fv7n6r-version-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            gap: 20px;
            margin-bottom: 25px;
        }

        .fv7n6r-version-item {
            background: #fff;
            padding: 20px;
            border-radius: 8px;
            border: 1px solid #e0e0e0;
        }

        .fv7n6r-version-label {
            font-size: 12px;
            color: #999;
            text-transform: uppercase;
            font-weight: 600;
            letter-spacing: 0.5px;
            margin-bottom: 8px;
        }

        .fv7n6r-version-value {
            font-size: 18px;
            font-weight: 700;
            color: #333;
        }

        /* 系统要求 */
        .fv7n6r-requirements {
            background: #fff;
            padding: 40px;
            border-radius: 12px;
            margin-bottom: 50px;
            border: 1px solid #e0e0e0;
        }

        .fv7n6r-requirements-title {
            font-size: 24px;
            font-weight: 700;
            color: #333;
            margin-bottom: 25px;
        }

        .fv7n6r-requirements-list {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 20px;
        }

        .fv7n6r-requirement-item {
            padding: 15px 0;
            border-bottom: 1px solid #f0f0f0;
            display: flex;
            align-items: flex-start;
            gap: 12px;
        }

        .fv7n6r-requirement-item:last-child {
            border-bottom: none;
        }

        .fv7n6r-requirement-check {
            color: #28a745;
            font-weight: bold;
            font-size: 16px;
            margin-top: 2px;
        }

        .fv7n6r-requirement-text {
            font-size: 14px;
            color: #666;
        }

        /* 功能介绍 */
        .fv7n6r-features {
            background: #fff;
            padding: 50px 40px;
            border-radius: 12px;
            margin-bottom: 50px;
            border: 1px solid #e0e0e0;
        }

        .fv7n6r-features-title {
            font-size: 24px;
            font-weight: 700;
            color: #333;
            margin-bottom: 30px;
        }

        .fv7n6r-features-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: 25px;
        }

        .fv7n6r-feature-item {
            padding: 20px;
            background: #f8f9fa;
            border-radius: 8px;
            border-left: 3px solid #0088cc;
        }

        .fv7n6r-feature-icon {
            font-size: 24px;
            margin-bottom: 10px;
        }

        .fv7n6r-feature-name {
            font-size: 16px;
            font-weight: 700;
            color: #333;
            margin-bottom: 8px;
        }

        .fv7n6r-feature-desc {
            font-size: 13px;
            color: #666;
            line-height: 1.5;
        }

        /* CTA区域 */
        .fv7n6r-cta-section {
            background: linear-gradient(135deg, #0088cc 0%, #006bb3 100%);
            color: #fff;
            padding: 60px 20px;
            text-align: center;
            border-radius: 12px;
            margin-bottom: 50px;
        }

        .fv7n6r-cta-title {
            font-size: 32px;
            font-weight: 800;
            margin-bottom: 15px;
        }

        .fv7n6r-cta-desc {
            font-size: 16px;
            margin-bottom: 30px;
            opacity: 0.95;
        }

        .fv7n6r-cta-buttons {
            display: flex;
            gap: 15px;
            justify-content: center;
            flex-wrap: wrap;
        }

        /* 常见问题 */
        .fv7n6r-faq {
            background: #fff;
            padding: 50px 40px;
            border-radius: 12px;
            margin-bottom: 50px;
            border: 1px solid #e0e0e0;
        }

        .fv7n6r-faq-title {
            font-size: 24px;
            font-weight: 700;
            color: #333;
            margin-bottom: 30px;
        }

        .fv7n6r-faq-item {
            margin-bottom: 20px;
            padding-bottom: 20px;
            border-bottom: 1px solid #f0f0f0;
        }

        .fv7n6r-faq-item:last-child {
            border-bottom: none;
            margin-bottom: 0;
            padding-bottom: 0;
        }

        .fv7n6r-faq-question {
            font-size: 16px;
            font-weight: 700;
            color: #0088cc;
            margin-bottom: 10px;
            cursor: pointer;
            user-select: none;
        }

        .fv7n6r-faq-answer {
            font-size: 14px;
            color: #666;
            line-height: 1.6;
            padding-left: 15px;
        }

        /* 页脚 */
        .fv7n6r-footer {
            background: #1a1a1a;
            color: #fff;
            padding: 40px 20px 20px;
            margin-top: 60px;
        }

        .fv7n6r-footer-content {
            max-width: 1200px;
            margin: 0 auto;
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            gap: 30px;
            margin-bottom: 30px;
        }

        .fv7n6r-footer-section h3 {
            font-size: 16px;
            font-weight: 700;
            margin-bottom: 15px;
            color: #0088cc;
        }

        .fv7n6r-footer-link {
            display: block;
            color: #aaa;
            text-decoration: none;
            font-size: 13px;
            margin-bottom: 8px;
            transition: color 0.3s ease;
        }

        .fv7n6r-footer-link:hover {
            color: #0088cc;
        }

        .fv7n6r-footer-bottom {
            border-top: 1px solid #333;
            padding-top: 20px;
            text-align: center;
            color: #888;
            font-size: 12px;
        }

        /* 响应式设计 */
        @media (max-width: 768px) {
            .fv7n6r-hero-title {
                font-size: 32px;
            }

            .fv7n6r-hero-subtitle {
                font-size: 16px;
            }

            h1.fv7n6r-main-title {
                font-size: 28px;
            }

            .fv7n6r-nav-menu {
                gap: 15px;
            }

            .fv7n6r-nav-link {
                font-size: 13px;
            }

            .fv7n6r-download-buttons {
                flex-direction: column;
                align-items: center;
            }

            .fv7n6r-btn-primary,
            .fv7n6r-btn-secondary {
                width: 100%;
                max-width: 300px;
            }

            .fv7n6r-cta-title {
                font-size: 24px;
            }

            .fv7n6r-cta-buttons {
                flex-direction: column;
                align-items: center;
            }

            .fv7n6r-main-content {
                padding: 40px 20px;
            }

            .fv7n6r-version-section,
            .fv7n6r-requirements,
            .fv7n6r-features,
            .fv7n6r-faq {
                padding: 30px 20px;
            }
        }

        @media (max-width: 480px) {
            .fv7n6r-hero {
                padding: 50px 15px;
            }

            .fv7n6r-hero-title {
                font-size: 24px;
            }

            .fv7n6r-nav-container {
                height: 60px;
            }

            .fv7n6r-nav-menu {
                gap: 10px;
            }

            .fv7n6r-nav-link {
                font-size: 12px;
                padding: 6px 0;
            }

            h1.fv7n6r-main-title {
                font-size: 22px;
            }

            .fv7n6r-info-cards {
                grid-template-columns: 1fr;
            }
        }