* {
            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: #f8f9fa;
        }

        /* 导航栏样式 */
        .fv7n6r-navbar {
            background: linear-gradient(135deg, #0088cc 0%, #00a8e8 100%);
            box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
            position: sticky;
            top: 0;
            z-index: 1000;
        }

        .fv7n6r-navbar-container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            height: 70px;
        }

        .fv7n6r-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 20px;
            font-weight: 700;
            color: white;
            text-decoration: none;
        }

        .fv7n6r-logo img {
            width: 40px;
            height: 40px;
            border-radius: 8px;
        }

        .fv7n6r-nav-menu {
            display: flex;
            gap: 30px;
            list-style: none;
        }

        .fv7n6r-nav-link {
            color: white;
            text-decoration: none;
            font-size: 15px;
            font-weight: 500;
            transition: all 0.3s ease;
            padding: 8px 12px;
            border-radius: 4px;
        }

        .fv7n6r-nav-link:hover {
            background-color: rgba(255, 255, 255, 0.2);
            transform: translateY(-2px);
        }

        /* 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%, #00a8e8 100%);
            color: white;
            padding: 80px 20px;
            text-align: center;
            margin-bottom: 60px;
        }

        .fv7n6r-hero-content {
            max-width: 800px;
            margin: 0 auto;
        }

        .fv7n6r-hero h1 {
            font-size: 48px;
            font-weight: 700;
            margin-bottom: 20px;
            line-height: 1.2;
        }

        .fv7n6r-hero-desc {
            font-size: 18px;
            margin-bottom: 30px;
            opacity: 0.95;
            line-height: 1.8;
        }

        .fv7n6r-hero-image {
            margin-top: 40px;
        }

        .fv7n6r-hero-image img {
            max-width: 300px;
            height: auto;
            border-radius: 12px;
            box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
        }

        /* CTA按钮 */
        .fv7n6r-cta-button {
            display: inline-block;
            background: white;
            color: #0088cc;
            padding: 15px 40px;
            font-size: 16px;
            font-weight: 600;
            border-radius: 8px;
            text-decoration: none;
            transition: all 0.3s ease;
            margin: 10px 10px;
            border: none;
            cursor: pointer;
            box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
        }

        .fv7n6r-cta-button:hover {
            transform: translateY(-3px);
            box-shadow: 0 6px 20px rgba(0, 0, 0, 0.3);
        }

        .fv7n6r-cta-button-secondary {
            background: transparent;
            color: white;
            border: 2px solid white;
        }

        .fv7n6r-cta-button-secondary:hover {
            background: rgba(255, 255, 255, 0.1);
        }

        /* 功能特点区域 */
        .fv7n6r-features-section {
            padding: 60px 20px;
            background-color: white;
            margin-bottom: 60px;
            border-radius: 12px;
        }

        .fv7n6r-section-title {
            font-size: 36px;
            font-weight: 700;
            text-align: center;
            margin-bottom: 50px;
            color: #0088cc;
        }

        .fv7n6r-features-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: 30px;
        }

        .fv7n6r-feature-card {
            background: #f8f9fa;
            padding: 30px;
            border-radius: 12px;
            text-align: center;
            transition: all 0.3s ease;
            border: 2px solid transparent;
        }

        .fv7n6r-feature-card:hover {
            border-color: #0088cc;
            box-shadow: 0 8px 25px rgba(0, 136, 204, 0.15);
            transform: translateY(-5px);
        }

        .fv7n6r-feature-icon {
            font-size: 48px;
            margin-bottom: 15px;
        }

        .fv7n6r-feature-title {
            font-size: 20px;
            font-weight: 600;
            margin-bottom: 12px;
            color: #333;
        }

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

        /* 兼容性区域 */
        .fv7n6r-compatibility-section {
            background: white;
            padding: 60px 20px;
            margin-bottom: 60px;
            border-radius: 12px;
        }

        .fv7n6r-compatibility-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 25px;
            margin-top: 40px;
        }

        .fv7n6r-compatibility-item {
            background: #f8f9fa;
            padding: 25px;
            border-radius: 10px;
            text-align: center;
            border-left: 4px solid #0088cc;
        }

        .fv7n6r-compatibility-item h3 {
            font-size: 18px;
            color: #0088cc;
            margin-bottom: 10px;
        }

        .fv7n6r-compatibility-item p {
            font-size: 14px;
            color: #666;
            line-height: 1.6;
        }

        /* 安装说明区域 */
        .fv7n6r-installation-section {
            background: white;
            padding: 60px 20px;
            margin-bottom: 60px;
            border-radius: 12px;
        }

        .fv7n6r-steps-container {
            max-width: 800px;
            margin: 40px auto 0;
        }

        .fv7n6r-step {
            display: flex;
            gap: 25px;
            margin-bottom: 30px;
            padding-bottom: 30px;
            border-bottom: 1px solid #eee;
        }

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

        .fv7n6r-step-number {
            background: #0088cc;
            color: white;
            width: 50px;
            height: 50px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 24px;
            font-weight: 700;
            flex-shrink: 0;
        }

        .fv7n6r-step-content h3 {
            font-size: 18px;
            font-weight: 600;
            margin-bottom: 8px;
            color: #333;
        }

        .fv7n6r-step-content p {
            font-size: 14px;
            color: #666;
            line-height: 1.6;
        }

        /* 下载区域 */
        .fv7n6r-download-section {
            background: linear-gradient(135deg, #0088cc 0%, #00a8e8 100%);
            color: white;
            padding: 60px 20px;
            border-radius: 12px;
            text-align: center;
            margin-bottom: 60px;
        }

        .fv7n6r-download-title {
            font-size: 32px;
            font-weight: 700;
            margin-bottom: 15px;
        }

        .fv7n6r-download-subtitle {
            font-size: 16px;
            margin-bottom: 40px;
            opacity: 0.95;
        }

        .fv7n6r-download-buttons {
            display: flex;
            gap: 20px;
            justify-content: center;
            flex-wrap: wrap;
        }

        .fv7n6r-app-store-btn {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            background: white;
            color: #0088cc;
            padding: 12px 30px;
            border-radius: 8px;
            text-decoration: none;
            font-weight: 600;
            transition: all 0.3s ease;
            border: none;
            cursor: pointer;
            font-size: 14px;
        }

        .fv7n6r-app-store-btn:hover {
            transform: translateY(-3px);
            box-shadow: 0 6px 20px rgba(0, 0, 0, 0.2);
        }

        .fv7n6r-app-store-btn img {
            width: 24px;
            height: 24px;
        }

        /* FAQ区域 */
        .fv7n6r-faq-section {
            background: white;
            padding: 60px 20px;
            margin-bottom: 60px;
            border-radius: 12px;
        }

        .fv7n6r-faq-container {
            max-width: 800px;
            margin: 40px auto 0;
        }

        .fv7n6r-faq-item {
            border-bottom: 1px solid #eee;
            padding: 20px 0;
        }

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

        .fv7n6r-faq-question {
            font-size: 16px;
            font-weight: 600;
            color: #0088cc;
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 10px 0;
            transition: all 0.3s ease;
        }

        .fv7n6r-faq-question:hover {
            color: #0066a0;
        }

        .fv7n6r-faq-answer {
            font-size: 14px;
            color: #666;
            line-height: 1.8;
            margin-top: 15px;
            display: none;
        }

        .fv7n6r-faq-answer.active {
            display: block;
        }

        .fv7n6r-faq-toggle {
            font-size: 18px;
            transition: transform 0.3s ease;
        }

        .fv7n6r-faq-toggle.active {
            transform: rotate(180deg);
        }

        /* 页脚 */
        .fv7n6r-footer {
            background: #1a1a1a;
            color: #999;
            padding: 50px 20px 30px;
            margin-top: 60px;
        }

        .fv7n6r-footer-content {
            max-width: 1200px;
            margin: 0 auto;
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 30px;
            margin-bottom: 30px;
        }

        .fv7n6r-footer-section h3 {
            color: white;
            font-size: 16px;
            margin-bottom: 15px;
        }

        .fv7n6r-footer-link {
            color: #999;
            text-decoration: none;
            font-size: 14px;
            display: block;
            margin-bottom: 10px;
            transition: color 0.3s ease;
        }

        .fv7n6r-footer-link:hover {
            color: white;
        }

        .fv7n6r-footer-bottom {
            border-top: 1px solid #333;
            padding-top: 20px;
            text-align: center;
            font-size: 13px;
        }

        /* 响应式设计 */
        @media (max-width: 768px) {
            .fv7n6r-navbar-menu {
                gap: 15px;
            }

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

            .fv7n6r-hero h1 {
                font-size: 32px;
            }

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

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

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

            .fv7n6r-step {
                gap: 15px;
            }

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

            .fv7n6r-app-store-btn {
                width: 100%;
                justify-content: center;
            }

            .fv7n6r-hero-image img {
                max-width: 200px;
            }
        }

        @media (max-width: 480px) {
            .fv7n6r-navbar-container {
                height: 60px;
            }

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

            .fv7n6r-nav-link {
                font-size: 12px;
                padding: 6px 8px;
            }

            .fv7n6r-hero {
                padding: 50px 15px;
            }

            .fv7n6r-hero h1 {
                font-size: 24px;
            }

            .fv7n6r-cta-button {
                padding: 12px 30px;
                font-size: 14px;
            }

            .fv7n6r-feature-card {
                padding: 20px;
            }
        }