/* 智慧大脑板块样式 */
.smart-factory {
    background-color: #f8f9fa;
    padding: 80px 0;
    position: relative;
}

.smart-factory .section-header {
    text-align: center;
    margin-bottom: 60px;
}

.smart-factory .section-header h2 {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 15px;
    color: #333;
}

.smart-factory .section-header p {
    font-size: 1.1rem;
    color: #666;
    max-width: 700px;
    margin: 0 auto;
}

.smart-features {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 30px;
}

.smart-feature {
    flex: 1;
    min-width: 240px;
    max-width: 280px;
    text-align: center;
    padding: 20px;
    transition: all 0.3s ease;
    opacity: 0;
    transform: translateY(30px);
    box-shadow: 0 10px 30px rgba(80, 139, 230, 0.2);
}

.smart-feature.animate {
    opacity: 1;
    transform: translateY(0);
}

.smart-feature:nth-child(1).animate {
    transition-delay: 0.1s;
}

.smart-feature:nth-child(2).animate {
    transition-delay: 0.3s;
}

.smart-feature:nth-child(3).animate {
    transition-delay: 0.5s;
}

.smart-feature:nth-child(4).animate {
    transition-delay: 0.7s;
}

.smart-feature:hover, .smart-feature.hover {
    transform: translateY(-10px);
    box-shadow: 0 10px 30px rgba(80, 139, 230, 0.1);
}

.feature-icon {
    margin-bottom: 20px;
    height: 80px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.feature-icon img {
    max-width: 60px;
    max-height: 60px;
}

.feature-title {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 15px;
    color: #333;
}

.feature-desc {
    font-size: 0.95rem;
    color: #666;
    line-height: 1.6;
    margin-bottom: 15px;
}

.feature-list {
    text-align: left;
    padding-left: 0;
    margin-bottom: 0;
    list-style: none;
}

.feature-list li {
    font-size: 0.9rem;
    color: #666;
    margin-bottom: 8px;
    line-height: 1.4;
    position: relative;
    padding-left: 25px;
}

.feature-list li::before {
    content: '';
    position: absolute;
    left: 8px;
    top: 50%;
    transform: translateY(-50%) scale(1);
    width: 4px;
    height: 4px;
    background: radial-gradient(circle, #1e88e5 0%, #1e88e5 50%, rgba(30, 136, 229, 0.3) 100%);
    border-radius: 50%;
    animation: pulse-dot 2s ease-in-out infinite;
}

.feature-list li:nth-child(1)::before {
    animation-delay: 0s;
}

.feature-list li:nth-child(2)::before {
    animation-delay: 0.4s;
}

.feature-list li:nth-child(3)::before {
    animation-delay: 0.8s;
}

@keyframes pulse-dot {
    0%, 100% {
        transform: translateY(-50%) scale(1);
        opacity: 1;
        box-shadow: 0 0 0 0 rgba(30, 136, 229, 0.4);
    }
    50% {
        transform: translateY(-50%) scale(1.25);
        opacity: 0.85;
        box-shadow: 0 0 0 3px rgba(30, 136, 229, 0.2),
                    0 0 0 6px rgba(30, 136, 229, 0.1);
    }
}

/* 响应式调整 */
@media (max-width: 992px) {
    .smart-features {
        flex-wrap: wrap;
    }
    
    .smart-feature {
        flex: 0 0 calc(50% - 30px);
        max-width: calc(50% - 30px);
    }
}

@media (max-width: 768px) {
    .smart-factory {
        padding: 60px 0;
    }
    
    .smart-factory .section-header h2 {
        font-size: 2rem;
    }
    
    .smart-factory .section-header p {
        font-size: 1rem;
    }
    
    .smart-feature {
        flex: 0 0 100%;
        max-width: 100%;
    }
}