:root {
            --primary: #4f46e5;
            --primary-dark: #4338ca;
            --secondary: #818cf8;
            --accent: #c7d2fe;
            --text: #1e293b;
            --text-light: #64748b;
            --bg: #f8fafc;
            --bg-light: #f1f5f9;
        }

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

        body {
            font-family: 'Inter', system-ui, -apple-system, sans-serif;
            background: var(--bg);
            color: var(--text);
            line-height: 1.6;
        }

        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 1rem;
        }

        /* 导航栏样式 */
        .navbar {
            background: rgba(255, 255, 255, 0.8);
            backdrop-filter: blur(10px);
            border-bottom: 1px solid rgba(79, 70, 229, 0.1);
            padding: 1rem 0;
            position: sticky;
            top: 0;
            z-index: 1000;
        }

        .nav-container {
            display: flex;
            justify-content: space-between;
            align-items: center;
        }

        .navbar-brand {
            font-weight: 700;
            font-size: 1.5rem;
            color: var(--primary);
            text-decoration: none;
            position: relative;
            padding-left: 2.5rem;
        }

        .navbar-brand::before {
            content: '16';
            position: absolute;
            left: 0;
            top: 50%;
            transform: translateY(-50%);
            background: var(--primary);
            color: white;
            padding: 0.25rem 0.5rem;
            border-radius: 0.5rem;
            font-size: 1rem;
            font-weight: 600;
        }

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

        .nav-link {
            font-weight: 500;
            color: var(--text);
            text-decoration: none;
            padding: 0.5rem 1rem;
            transition: all 0.3s ease;
        }

        .nav-link:hover,
        .nav-link.active {
            color: var(--primary);
        }

        .btn {
            display: inline-block;
            padding: 0.75rem 1.5rem;
            border-radius: 0.75rem;
            font-weight: 500;
            text-decoration: none;
            transition: all 0.3s ease;
            cursor: pointer;
            border: none;
        }

        .btn-primary {
            background: var(--primary);
            color: white;
        }

        .btn-primary:hover {
            background: var(--primary-dark);
            transform: translateY(-1px);
        }

        .btn-lg {
            padding: 1rem 2rem;
            font-size: 1.125rem;
            margin-left: 30rem;
        }

        /* Hero区域样式 */
        .hero {
            background: linear-gradient(135deg, #fff 0%, var(--bg-light) 100%);
            border-radius: 2rem;
            padding: 4rem 2rem;
            margin: 0 0;
            position: relative;
            overflow: hidden;
            text-align: center;
        }

        .hero::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: url('data:image/svg+xml,<svg width="20" height="20" viewBox="0 0 20 20" xmlns="http://www.w3.org/2000/svg"><circle cx="2" cy="2" r="1" fill="%234f46e5" opacity="0.1"/></svg>') repeat;
            opacity: 0.5;
        }

        .hero h1 {
            font-size: 3rem;
            font-weight: 800;
            color: var(--primary);
            margin-bottom: 1.5rem;
            line-height: 1.2;
        }

        .hero p {
            font-size: 1.25rem;
            color: var(--text-light);
            max-width: 600px;
            margin: 0 auto 2rem;
        }

        /* 特性卡片样式 */
        .feature-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 2rem;
            margin: 4rem 0;
        }

        .feature-card {
            background: white;
            border-radius: 1.5rem;
            padding: 2rem;
            box-shadow: 0 4px 6px -1px rgba(79, 70, 229, 0.1);
            transition: all 0.3s ease;
            border: 1px solid rgba(79, 70, 229, 0.1);
            text-align: center;
        }

        .feature-card:hover {
            transform: translateY(-5px);
            box-shadow: 0 10px 15px -3px rgba(79, 70, 229, 0.1);
        }

        .feature-icon {
            width: 64px;
            height: 64px;
            background: var(--accent);
            border-radius: 1rem;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 1.5rem;
            font-size: 1.5rem;
            color: var(--primary);
        }

        .feature-card h3 {
            margin-bottom: 1rem;
        }

        /* 测试流程样式 */
        .process-steps {
            position: relative;
            padding: 4rem 0;
            max-width: 1200px;
            margin: 0 auto;
        }

        .process-grid {
            display: flex;
            align-items: stretch;
            justify-content: center;
            gap: 1.5rem;
            margin-top: 3rem;
        }

        .process-step {
            flex: 1;
            position: relative;
            display: flex;
            flex-direction: column;
            align-items: center;
            text-align: center;
        }

        .process-step:not(:last-child)::after {
            content: '→';
            position: absolute;
            right: -1rem;
            top: 50%;
            transform: translateY(-50%);
            color: var(--primary);
            font-size: 1.5rem;
            font-weight: bold;
        }

        .process-content {
            background: white;
            padding: 1.5rem;
            border-radius: 1rem;
            box-shadow: 0 4px 6px -1px rgba(79, 70, 229, 0.1);
            border: 1px solid rgba(79, 70, 229, 0.1);
            transition: all 0.3s ease;
            height: 100%;
            width: 100%;
        }

        .process-step:hover .process-content {
            transform: translateY(-5px);
            box-shadow: 0 10px 15px -3px rgba(79, 70, 229, 0.1);
        }

        .process-step h3 {
            color: var(--primary);
            margin-bottom: 0.5rem;
            font-weight: 600;
        }

        /* 团队展示样式 */
        .team-section {
            background: white;
            border-radius: 2rem;
            padding: 4rem 2rem;
            margin: 4rem 0;
            text-align: center;
        }

        .team-grid {
            display: flex;
            justify-content: center;
            gap: 2rem;
            margin-top: 3rem;
            overflow-x: auto;
            padding: 1rem 0;
            -webkit-overflow-scrolling: touch;
            scrollbar-width: none;  /* Firefox */
            -ms-overflow-style: none;  /* IE and Edge */
        }

        .team-grid::-webkit-scrollbar {
            display: none;  /* Chrome, Safari, Opera */
        }

        .team-member {
            text-align: center;
            flex: 0 0 auto;
            width: 200px;
        }

        .team-avatar {
            width: 100px;
            height: 100px;
            background: var(--accent);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 1.5rem;
            font-size: 2rem;
            color: var(--primary);
            font-weight: 600;
        }

        /* 用户评价样式 */
        .testimonials {
            margin: 4rem 0;
            text-align: center;
        }

        .testimonial-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 2rem;
            margin-top: 3rem;
        }

        .testimonial-card {
            background: white;
            border-radius: 1.5rem;
            padding: 2rem;
            position: relative;
            border: 1px solid rgba(79, 70, 229, 0.1);
            text-align: left;
        }

        .testimonial-card::before {
            content: '"';
            position: absolute;
            top: -1rem;
            left: 2rem;
            font-size: 4rem;
            color: var(--accent);
            line-height: 1;
        }

        .section-title {
            text-align: center;
            margin-bottom: 3rem;
        }

        .section-title h2 {
            color: var(--primary);
            font-size: 2rem;
            margin-bottom: 1rem;
        }

        .text-muted {
            color: var(--text-light);
        }

        /* 响应式调整 */
        @media (max-width: 1200px) {
            .process-steps {
                padding: 4rem 2rem;
            }
        }
        
        @media (max-width: 992px) {
            .process-grid {
                flex-wrap: wrap;
            }

            .process-step {
                flex: 0 0 calc(50% - 1rem);
            }

            .process-step:nth-child(2n)::after {
                display: none;
            }

            .process-step:nth-child(2n-1)::after {
                content: '↓';
                right: 50%;
                top: auto;
                bottom: -1.5rem;
                transform: translateX(50%);
            }

            .feature-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }

        @media (max-width: 768px) {
            .btn-lg {
            padding: 1rem 2rem;
            font-size: 1.125rem;
            margin-left: 6rem;
        }
            .nav-menu {
                display: none;
            }

            .hero h1 {
                font-size: 2rem;
            }

            .hero p {
                font-size: 1.125rem;
            }

            .process-steps {
                padding: 3rem 1rem;
            }

            .process-grid {
                flex-direction: column;
                gap: 2rem;
            }

            .process-step {
                flex: 0 0 100%;
            }

            .process-step:not(:last-child)::after {
                content: '↓';
                right: 50%;
                top: auto;
                bottom: -1.5rem;
                transform: translateX(50%);
            }

            .team-section {
                padding: 3rem 1rem;
            }

            .team-grid {
                justify-content: flex-start;
                padding: 1rem;
                margin: 2rem -1rem 0;
            }

            .team-member {
                width: 160px;
            }

            .team-avatar {
                width: 80px;
                height: 80px;
                font-size: 1.75rem;
                margin-bottom: 1rem;
            }

            .team-member h4 {
                font-size: 1rem;
                margin-bottom: 0.25rem;
            }

            .team-member p {
                font-size: 0.875rem;
            }

            .feature-grid {
                grid-template-columns: 1fr;
            }
        }

        @media (max-width: 480px) {
            .hero {
                padding: 2rem 1rem;
            }

            .hero h1 {
                font-size: 1.75rem;
            }

            .feature-grid {
                grid-template-columns: 1fr;
            }

            .team-grid {
                grid-template-columns: 1fr;
            }

            .team-member {
                width: 140px;
            }

            .team-avatar {
                width: 70px;
                height: 70px;
                font-size: 1.5rem;
            }

            .testimonial-grid {
                grid-template-columns: 1fr;
            }
        }