* {
            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 */
        .ickfu-navbar-container {
            background: linear-gradient(135deg, #0084ff 0%, #0066cc 100%);
            box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
            position: sticky;
            top: 0;
            z-index: 1000;
        }

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

        .ickfu-logo-section {
            display: flex;
            align-items: center;
            gap: 12px;
            text-decoration: none;
            color: white;
            font-size: 20px;
            font-weight: 600;
        }

        .ickfu-logo-section img {
            height: 45px;
            width: auto;
        }

        .ickfu-nav-links {
            display: flex;
            gap: 30px;
            align-items: center;
        }

        .ickfu-nav-link {
            color: white;
            text-decoration: none;
            font-size: 14px;
            font-weight: 500;
            transition: opacity 0.3s ease;
            padding: 8px 12px;
            border-radius: 4px;
        }

        .ickfu-nav-link:hover {
            opacity: 0.8;
            background-color: rgba(255, 255, 255, 0.1);
        }

        /* 英雄区域 */
        .ickfu-hero-section {
            background: linear-gradient(135deg, #0084ff 0%, #0066cc 100%);
            color: white;
            padding: 80px 20px;
            text-align: center;
        }

        .ickfu-hero-container {
            max-width: 1000px;
            margin: 0 auto;
        }

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

        .ickfu-hero-subtitle {
            font-size: 20px;
            margin-bottom: 40px;
            opacity: 0.95;
            line-height: 1.5;
        }

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

        .ickfu-btn-primary {
            background-color: white;
            color: #0084ff;
            padding: 16px 40px;
            font-size: 16px;
            font-weight: 600;
            border: none;
            border-radius: 6px;
            cursor: pointer;
            text-decoration: none;
            display: inline-block;
            transition: transform 0.3s ease, box-shadow 0.3s ease;
            box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
        }

        .ickfu-btn-primary:hover {
            transform: translateY(-2px);
            box-shadow: 0 6px 16px rgba(0, 0, 0, 0.2);
        }

        .ickfu-btn-secondary {
            background-color: transparent;
            color: white;
            padding: 16px 40px;
            font-size: 16px;
            font-weight: 600;
            border: 2px solid white;
            border-radius: 6px;
            cursor: pointer;
            text-decoration: none;
            display: inline-block;
            transition: all 0.3s ease;
        }

        .ickfu-btn-secondary:hover {
            background-color: white;
            color: #0084ff;
        }

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

        .ickfu-intro-section {
            background: white;
            padding: 40px;
            border-radius: 8px;
            margin-bottom: 40px;
            box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
            line-height: 1.8;
        }

        .ickfu-intro-title {
            font-size: 28px;
            font-weight: 600;
            margin-bottom: 20px;
            color: #0084ff;
        }

        .ickfu-intro-text {
            color: #555;
            font-size: 16px;
            margin-bottom: 15px;
        }

        /* 特性网格 */
        .ickfu-features-section {
            margin-bottom: 60px;
        }

        .ickfu-section-title {
            font-size: 32px;
            font-weight: 700;
            text-align: center;
            margin-bottom: 50px;
            color: #333;
        }

        .ickfu-features-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: 30px;
            margin-bottom: 40px;
        }

        .ickfu-feature-card {
            background: white;
            padding: 30px;
            border-radius: 8px;
            box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
            transition: transform 0.3s ease, box-shadow 0.3s ease;
            border-top: 4px solid #0084ff;
        }

        .ickfu-feature-card:hover {
            transform: translateY(-5px);
            box-shadow: 0 6px 16px rgba(0, 0, 0, 0.12);
        }

        .ickfu-feature-icon {
            font-size: 32px;
            margin-bottom: 15px;
        }

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

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

        /* 平台兼容性 */
        .ickfu-compatibility-section {
            background: white;
            padding: 50px 40px;
            border-radius: 8px;
            margin-bottom: 40px;
            box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
        }

        .ickfu-compat-title {
            font-size: 28px;
            font-weight: 600;
            margin-bottom: 30px;
            color: #0084ff;
        }

        .ickfu-platform-cards {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 25px;
        }

        .ickfu-platform-card {
            background: linear-gradient(135deg, #f5f7fa 0%, #f0f2f5 100%);
            padding: 30px;
            border-radius: 8px;
            border: 2px solid #e0e0e0;
            transition: all 0.3s ease;
        }

        .ickfu-platform-card:hover {
            border-color: #0084ff;
            background: linear-gradient(135deg, #e8f1ff 0%, #f0f2f5 100%);
        }

        .ickfu-platform-icon {
            font-size: 40px;
            margin-bottom: 15px;
        }

        .ickfu-platform-name {
            font-size: 20px;
            font-weight: 600;
            margin-bottom: 10px;
            color: #333;
        }

        .ickfu-platform-specs {
            font-size: 14px;
            color: #666;
            line-height: 1.8;
        }

        .ickfu-platform-specs strong {
            color: #333;
        }

        /* 安装说明 */
        .ickfu-installation-section {
            background: white;
            padding: 50px 40px;
            border-radius: 8px;
            margin-bottom: 40px;
            box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
        }

        .ickfu-install-title {
            font-size: 28px;
            font-weight: 600;
            margin-bottom: 30px;
            color: #0084ff;
        }

        .ickfu-steps-container {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 30px;
        }

        .ickfu-step-card {
            background: #f8f9fa;
            padding: 25px;
            border-radius: 8px;
            border-left: 4px solid #0084ff;
        }

        .ickfu-step-number {
            display: inline-block;
            width: 36px;
            height: 36px;
            background-color: #0084ff;
            color: white;
            border-radius: 50%;
            text-align: center;
            line-height: 36px;
            font-weight: 600;
            margin-bottom: 12px;
        }

        .ickfu-step-title {
            font-size: 18px;
            font-weight: 600;
            margin-bottom: 10px;
            color: #333;
        }

        .ickfu-step-description {
            font-size: 14px;
            color: #666;
            line-height: 1.6;
        }

        /* 优势对比 */
        .ickfu-advantages-section {
            background: white;
            padding: 50px 40px;
            border-radius: 8px;
            margin-bottom: 40px;
            box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
        }

        .ickfu-advantages-title {
            font-size: 28px;
            font-weight: 600;
            margin-bottom: 30px;
            color: #0084ff;
        }

        .ickfu-advantages-list {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: 20px;
        }

        .ickfu-advantage-item {
            padding: 20px;
            background: #f8f9fa;
            border-radius: 6px;
            display: flex;
            gap: 15px;
            align-items: flex-start;
        }

        .ickfu-advantage-icon {
            font-size: 24px;
            color: #0084ff;
            flex-shrink: 0;
            margin-top: 2px;
        }

        .ickfu-advantage-text {
            font-size: 15px;
            color: #555;
            line-height: 1.5;
        }

        /* 下载区域 */
        .ickfu-download-section {
            background: linear-gradient(135deg, #0084ff 0%, #0066cc 100%);
            color: white;
            padding: 60px 20px;
            border-radius: 8px;
            text-align: center;
            margin-bottom: 40px;
        }

        .ickfu-download-title {
            font-size: 32px;
            font-weight: 700;
            margin-bottom: 20px;
        }

        .ickfu-download-subtitle {
            font-size: 18px;
            margin-bottom: 40px;
            opacity: 0.95;
        }

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

        .ickfu-download-btn {
            background-color: white;
            color: #0084ff;
            padding: 14px 36px;
            font-size: 15px;
            font-weight: 600;
            border: none;
            border-radius: 6px;
            cursor: pointer;
            text-decoration: none;
            display: inline-block;
            transition: all 0.3s ease;
            box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
        }

        .ickfu-download-btn:hover {
            transform: translateY(-2px);
            box-shadow: 0 6px 16px rgba(0, 0, 0, 0.2);
        }

        /* FAQ部分 */
        .ickfu-faq-section {
            background: white;
            padding: 50px 40px;
            border-radius: 8px;
            margin-bottom: 40px;
            box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
        }

        .ickfu-faq-title {
            font-size: 28px;
            font-weight: 600;
            margin-bottom: 30px;
            color: #0084ff;
        }

        .ickfu-faq-item {
            margin-bottom: 20px;
            border-bottom: 1px solid #e0e0e0;
            padding-bottom: 20px;
        }

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

        .ickfu-faq-question {
            font-size: 16px;
            font-weight: 600;
            color: #333;
            cursor: pointer;
            padding: 10px 0;
            display: flex;
            justify-content: space-between;
            align-items: center;
        }

        .ickfu-faq-question:hover {
            color: #0084ff;
        }

        .ickfu-faq-answer {
            font-size: 14px;
            color: #666;
            line-height: 1.6;
            margin-top: 10px;
            display: none;
        }

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

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

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

        /* 页脚 */
        .ickfu-footer {
            background-color: #2c3e50;
            color: white;
            padding: 40px 20px;
            margin-top: 60px;
        }

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

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

        .ickfu-footer-section h4 {
            font-size: 16px;
            font-weight: 600;
            margin-bottom: 15px;
            color: #0084ff;
        }

        .ickfu-footer-links {
            display: flex;
            flex-direction: column;
            gap: 10px;
        }

        .ickfu-footer-links a {
            color: #bbb;
            text-decoration: none;
            font-size: 14px;
            transition: color 0.3s ease;
        }

        .ickfu-footer-links a:hover {
            color: #0084ff;
        }

        .ickfu-footer-text {
            font-size: 14px;
            color: #999;
            line-height: 1.6;
        }

        .ickfu-footer-bottom {
            border-top: 1px solid #444;
            padding-top: 20px;
            text-align: center;
            font-size: 13px;
            color: #999;
        }

        /* 响应式设计 */
        @media (max-width: 768px) {
            .ickfu-hero-title {
                font-size: 36px;
            }

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

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

            .ickfu-nav-links {
                flex-wrap: wrap;
                justify-content: center;
                gap: 15px;
            }

            .ickfu-section-title {
                font-size: 24px;
            }

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

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

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

            .ickfu-download-btn {
                width: 100%;
                max-width: 300px;
            }

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

            .ickfu-steps-container {
                grid-template-columns: 1fr;
            }

            .ickfu-platform-cards {
                grid-template-columns: 1fr;
            }

            .ickfu-advantages-list {
                grid-template-columns: 1fr;
            }
        }

        @media (max-width: 480px) {
            .ickfu-hero-title {
                font-size: 28px;
            }

            .ickfu-section-title {
                font-size: 20px;
            }

            .ickfu-intro-section,
            .ickfu-compatibility-section,
            .ickfu-installation-section,
            .ickfu-advantages-section,
            .ickfu-faq-section {
                padding: 25px 15px;
            }

            .ickfu-main-content {
                padding: 30px 15px;
            }
        }