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

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

        /* 导航栏样式 */
        .ickfu-header {
            background: #fff;
            box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
            position: sticky;
            top: 0;
            z-index: 100;
        }

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

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

        .ickfu-menu-toggle {
            display: none;
            flex-direction: column;
            background: none;
            border: none;
            cursor: pointer;
            padding: 8px;
        }

        .ickfu-menu-toggle span {
            width: 24px;
            height: 3px;
            background: #333;
            margin: 4px 0;
            border-radius: 2px;
            transition: 0.3s;
        }

        .ickfu-nav-menu {
            display: flex;
            gap: 40px;
            list-style: none;
        }

        .ickfu-nav-menu a {
            text-decoration: none;
            color: #333;
            font-weight: 500;
            transition: color 0.3s;
            font-size: 15px;
        }

        .ickfu-nav-menu a:hover {
            color: #0088cc;
        }

        .ickfu-nav-menu a.active {
            color: #0088cc;
            border-bottom: 2px solid #0088cc;
            padding-bottom: 5px;
        }

        .ickfu-nav-overlay {
            display: none;
        }

        /* 功能页面顶部 */
        .ickfu-feature-header {
            background: linear-gradient(135deg, #0088cc 0%, #0066aa 100%);
            color: white;
            padding: 60px 20px;
            text-align: center;
        }

        .ickfu-feature-header-content {
            max-width: 800px;
            margin: 0 auto;
        }

        .ickfu-feature-header h1 {
            font-size: 42px;
            margin-bottom: 20px;
            font-weight: 700;
        }

        .ickfu-feature-header p {
            font-size: 18px;
            opacity: 0.95;
            line-height: 1.8;
        }

        /* 功能导航 */
        .ickfu-feature-nav {
            max-width: 1200px;
            margin: 0 auto;
            padding: 40px 20px;
            display: flex;
            justify-content: center;
            gap: 20px;
            flex-wrap: wrap;
        }

        .ickfu-feature-nav-btn {
            padding: 10px 24px;
            border: 2px solid #0088cc;
            background: white;
            color: #0088cc;
            border-radius: 25px;
            cursor: pointer;
            font-weight: 600;
            transition: all 0.3s;
            font-size: 14px;
        }

        .ickfu-feature-nav-btn.active,
        .ickfu-feature-nav-btn:hover {
            background: #0088cc;
            color: white;
        }

        /* 核心功能卡片网格 */
        .ickfu-features-grid {
            max-width: 1200px;
            margin: 0 auto;
            padding: 60px 20px;
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
            gap: 30px;
        }

        .ickfu-feature-card {
            background: #f8f9fa;
            border-radius: 12px;
            padding: 40px 30px;
            transition: all 0.3s;
            border: 1px solid #e0e0e0;
        }

        .ickfu-feature-card:hover {
            transform: translateY(-8px);
            box-shadow: 0 12px 24px rgba(0, 0, 0, 0.12);
            border-color: #0088cc;
        }

        .ickfu-feature-icon {
            font-size: 48px;
            margin-bottom: 20px;
            display: block;
        }

        .ickfu-feature-card h3 {
            font-size: 20px;
            margin-bottom: 15px;
            color: #0088cc;
        }

        .ickfu-feature-card p {
            font-size: 15px;
            color: #666;
            line-height: 1.8;
        }

        /* 对比表格部分 */
        .ickfu-comparison-section {
            background: #f8f9fa;
            padding: 60px 20px;
            margin-top: 60px;
        }

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

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

        .ickfu-comparison-table {
            width: 100%;
            border-collapse: collapse;
            background: white;
            border-radius: 12px;
            overflow: hidden;
            box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
        }

        .ickfu-comparison-table th {
            background: #0088cc;
            color: white;
            padding: 20px;
            text-align: left;
            font-weight: 600;
        }

        .ickfu-comparison-table td {
            padding: 18px 20px;
            border-bottom: 1px solid #e0e0e0;
        }

        .ickfu-comparison-table tr:last-child td {
            border-bottom: none;
        }

        .ickfu-comparison-table tr:nth-child(even) {
            background: #f9f9f9;
        }

        .ickfu-check-icon {
            color: #28a745;
            font-weight: bold;
            font-size: 18px;
        }

        /* 技术优势部分 */
        .ickfu-tech-section {
            max-width: 1200px;
            margin: 0 auto;
            padding: 60px 20px;
        }

        .ickfu-tech-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
            gap: 40px;
            margin-top: 40px;
        }

        .ickfu-tech-item {
            padding: 30px;
            background: white;
            border-radius: 12px;
            border-left: 4px solid #0088cc;
            box-shadow: 0 2px 8px rgba(0, 0, 0, 0.06);
        }

        .ickfu-tech-item h4 {
            font-size: 20px;
            margin-bottom: 15px;
            color: #0088cc;
        }

        .ickfu-tech-item p {
            font-size: 15px;
            color: #666;
            line-height: 1.8;
        }

        /* 应用场景部分 */
        .ickfu-scenarios-section {
            background: linear-gradient(135deg, #f5f7fa 0%, #f9f9f9 100%);
            padding: 60px 20px;
        }

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

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

        .ickfu-scenario-card {
            background: white;
            padding: 35px;
            border-radius: 12px;
            box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
            transition: all 0.3s;
        }

        .ickfu-scenario-card:hover {
            transform: translateY(-6px);
            box-shadow: 0 8px 20px rgba(0, 0, 0, 0.12);
        }

        .ickfu-scenario-icon {
            font-size: 42px;
            margin-bottom: 15px;
        }

        .ickfu-scenario-card h4 {
            font-size: 18px;
            margin-bottom: 12px;
            color: #333;
        }

        .ickfu-scenario-card p {
            font-size: 14px;
            color: #666;
            line-height: 1.7;
        }

        /* 详细功能说明 */
        .ickfu-detail-section {
            max-width: 1200px;
            margin: 0 auto;
            padding: 60px 20px;
        }

        .ickfu-detail-item {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 40px;
            align-items: center;
            margin-bottom: 60px;
        }

        .ickfu-detail-item:nth-child(even) {
            direction: rtl;
        }

        .ickfu-detail-item:nth-child(even) > * {
            direction: ltr;
        }

        .ickfu-detail-image {
            border-radius: 12px;
            overflow: hidden;
            box-shadow: 0 8px 24px rgba(0, 0, 0, 0.12);
        }

        .ickfu-detail-image img {
            width: 100%;
            height: auto;
            display: block;
        }

        .ickfu-detail-content h3 {
            font-size: 28px;
            margin-bottom: 20px;
            color: #0088cc;
        }

        .ickfu-detail-content p {
            font-size: 16px;
            color: #666;
            line-height: 1.8;
            margin-bottom: 15px;
        }

        .ickfu-feature-list {
            list-style: none;
            margin-top: 20px;
        }

        .ickfu-feature-list li {
            padding: 10px 0;
            padding-left: 30px;
            position: relative;
            color: #666;
            font-size: 15px;
        }

        .ickfu-feature-list li:before {
            content: "✓";
            position: absolute;
            left: 0;
            color: #0088cc;
            font-weight: bold;
            font-size: 18px;
        }

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

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

        .ickfu-footer-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 40px;
            margin-bottom: 40px;
        }

        .ickfu-footer-brand {
            font-size: 20px;
            font-weight: 700;
            color: white;
            margin-bottom: 15px;
        }

        .ickfu-footer-section h4 {
            color: white;
            margin-bottom: 15px;
            font-size: 16px;
        }

        .ickfu-footer-section ul {
            list-style: none;
        }

        .ickfu-footer-section ul li {
            margin-bottom: 10px;
        }

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

        .ickfu-footer-section a:hover {
            color: #0088cc;
        }

        .ickfu-footer-bottom {
            border-top: 1px solid #333;
            padding-top: 30px;
            text-align: center;
            font-size: 14px;
            color: #999;
        }

        /* 响应式设计 */
        @media (max-width: 768px) {
            .ickfu-menu-toggle {
                display: flex;
            }

            .ickfu-nav-menu {
                display: none;
                position: absolute;
                top: 70px;
                left: 0;
                right: 0;
                flex-direction: column;
                background: white;
                padding: 20px;
                gap: 15px;
                box-shadow: 0 8px 16px rgba(0, 0, 0, 0.1);
            }

            .ickfu-nav-menu.active {
                display: flex;
            }

            .ickfu-feature-header h1 {
                font-size: 28px;
            }

            .ickfu-feature-header p {
                font-size: 16px;
            }

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

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

            .ickfu-detail-item:nth-child(even) {
                direction: ltr;
            }

            .ickfu-comparison-table {
                font-size: 14px;
            }

            .ickfu-comparison-table th,
            .ickfu-comparison-table td {
                padding: 12px;
            }

            .ickfu-feature-nav {
                padding: 30px 20px;
            }

            .ickfu-feature-nav-btn {
                padding: 8px 16px;
                font-size: 12px;
            }

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

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

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

        @media (max-width: 480px) {
            .ickfu-nav {
                height: 60px;
            }

            .ickfu-feature-header {
                padding: 40px 15px;
            }

            .ickfu-feature-header h1 {
                font-size: 22px;
                margin-bottom: 15px;
            }

            .ickfu-feature-header p {
                font-size: 14px;
            }

            .ickfu-features-grid {
                padding: 40px 15px;
                gap: 20px;
            }

            .ickfu-feature-card {
                padding: 25px 20px;
            }

            .ickfu-feature-icon {
                font-size: 36px;
            }

            .ickfu-feature-card h3 {
                font-size: 18px;
            }

            .ickfu-comparison-table th,
            .ickfu-comparison-table td {
                padding: 10px 8px;
                font-size: 12px;
            }

            .ickfu-tech-item {
                padding: 20px;
            }

            .ickfu-detail-content h3 {
                font-size: 22px;
            }

            .ickfu-detail-content p {
                font-size: 14px;
            }
        }