/* 功能对比区域 */
        .comparison-section {
            padding: 4rem 0;
        }
        
        .section-header {
            text-align: center;
            margin-bottom: 3rem;
        }
        
        .section-header h2 {
            font-size: 2.25rem;
            font-weight: 700;
            background: linear-gradient(135deg, #1e293b, #475569, #1e293b);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            margin-bottom: 1rem;
        }
        
        .section-header p {
            color: #64748b;
            font-size: 1.125rem;
        }
        
        .comparison-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 12px 20px;
            background: linear-gradient(135deg, #f0f9ff, #e0f2fe);
            border: 1px solid rgba(14, 165, 233, 0.2);
            border-radius: 20px;
            color: #0369a1;
            font-weight: 600;
            margin-bottom: 2rem;
        }
        
        .comparison-table {
            background: white;
            border-radius: 16px;
            overflow: hidden;
            box-shadow: 0 4px 24px rgba(0, 0, 0, 0.05);
            margin-bottom: 3rem;
        }
        
        table {
            width: 100%;
            border-collapse: collapse;
        }
        
        th, td {
            padding: 1.25rem 1rem;
            text-align: left;
            border-bottom: 1px solid #e2e8f0;
        }
        
        th {
            background: #f8fafc;
            font-weight: 600;
            color: #1e293b;
        }
        
        .highlight-col {
            background: linear-gradient(135deg, rgba(99, 102, 241, 0.05), rgba(139, 92, 246, 0.05));
            position: relative;
        }
        
        .highlight-col::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 4px;
            height: 100%;
            background: linear-gradient(135deg, #6366f1, #8b5cf6);
        }
        
        .header-content {
            display: flex;
            flex-direction: column;
            align-items: center;
            gap: 8px;
        }
        
        .badge {
            background: linear-gradient(135deg, #10b981, #059669);
            color: white;
            padding: 4px 8px;
            border-radius: 6px;
            font-size: 0.75rem;
            font-weight: 600;
        }
        
        .feature-tag {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: rgba(16, 185, 129, 0.1);
            color: #065f46;
            padding: 4px 8px;
            border-radius: 6px;
            font-size: 0.875rem;
            font-weight: 500;
        }
        
        .feature-tag i {
            font-size: 0.5rem;
        }
        
        /* 核心功能网格 */
        .core-features {
            padding: 4rem 0;
            background: linear-gradient(135deg, #f8fafc, #f1f5f9);
        }
        
        .features-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
            gap: 2rem;
        }
        
        .feature-card {
            background: rgba(255, 255, 255, 0.9);
            backdrop-filter: blur(8px);
            border-radius: 20px;
            border: 1px solid rgba(168, 85, 247, 0.1);
            overflow: hidden;
            transition: all 0.3s ease;
            position: relative;
        }
        
        .feature-card:hover {
            transform: translateY(-8px);
            box-shadow: 0 16px 48px rgba(99, 102, 241, 0.15);
        }
        
        .feature-header {
            padding: 2rem 2rem 1rem;
            text-align: center;
        }
        
        .feature-icon {
            width: 80px;
            height: 80px;
            background: linear-gradient(135deg, #6366f1, #8b5cf6);
            border-radius: 20px;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 1.5rem;
            color: white;
            font-size: 2rem;
        }
        
        .feature-card h3 {
            font-size: 1.5rem;
            font-weight: 600;
            color: #1e293b;
            margin-bottom: 0.5rem;
        }
        
        .feature-subtitle {
            color: #6366f1;
            font-weight: 600;
            font-size: 0.875rem;
            margin-bottom: 1rem;
        }
        
        .feature-content {
            padding: 0 2rem 2rem;
        }
        
        .feature-content p {
            color: #64748b;
            line-height: 1.6;
            margin-bottom: 1.5rem;
        }
        
        .feature-list {
            list-style: none;
        }
        
        .feature-list li {
            display: flex;
            align-items: flex-start;
            gap: 12px;
            margin-bottom: 12px;
            color: #475569;
        }
        
        .feature-list i {
            color: #10b981;
            margin-top: 4px;
            flex-shrink: 0;
        }
        
        /* AI原生开发部分 */
        .ai-development {
            padding: 4rem 0;
        }
        
        .ai-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 1.5rem;
        }
        
        .ai-card {
            background: white;
            padding: 2rem;
            border-radius: 16px;
            box-shadow: 0 2px 16px rgba(0, 0, 0, 0.05);
            border: 1px solid rgba(168, 85, 247, 0.1);
            transition: all 0.3s ease;
            position: relative;
            overflow: hidden;
        }
        
        .ai-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 3px;
            background: linear-gradient(135deg, #6366f1, #8b5cf6);
            transform: scaleX(0);
            transition: transform 0.3s ease;
        }
        
        .ai-card:hover::before {
            transform: scaleX(1);
        }
        
        .ai-card:hover {
            transform: translateY(-4px);
            box-shadow: 0 8px 32px rgba(99, 102, 241, 0.15);
        }
        
        .ai-header {
            display: flex;
            align-items: center;
            gap: 1rem;
            margin-bottom: 1.5rem;
        }
        
        .ai-icon {
            width: 48px;
            height: 48px;
            background: linear-gradient(135deg, #6366f1, #8b5cf6);
            border-radius: 12px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: white;
            font-size: 1.25rem;
        }
        
        .ai-card h3 {
            font-size: 1.25rem;
            font-weight: 600;
            color: #1e293b;
        }
        
        .ai-card p {
            color: #64748b;
            line-height: 1.6;
            margin-bottom: 1.5rem;
        }
        
        .ai-features {
            list-style: none;
        }
        
        .ai-features li {
            display: flex;
            align-items: center;
            gap: 8px;
            margin-bottom: 8px;
            color: #475569;
            font-size: 0.875rem;
        }
        
        .ai-features li::before {
            content: '';
            width: 6px;
            height: 6px;
            background: linear-gradient(135deg, #6366f1, #8b5cf6);
            border-radius: 50%;
            flex-shrink: 0;
        }