/* ============================================
   AFASTS 企业官网 - 动画样式文件（精简）
   ============================================ */

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(24px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes particleFlow {
    0% {
        background-position: 0 0, 50px 50px;
    }
    100% {
        background-position: 140px 140px, 220px 220px;
    }
}

.product-card {
    opacity: 0;
    transform: translateY(20px);
}

.product-card.visible {
    animation: fadeInUp 0.6s var(--ease-brand) forwards;
}

.product-card:nth-child(1) { animation-delay: 0s; }
.product-card:nth-child(2) { animation-delay: 0.08s; }
.product-card:nth-child(3) { animation-delay: 0.16s; }
.product-card:nth-child(4) { animation-delay: 0.24s; }
.product-card:nth-child(5) { animation-delay: 0.32s; }
.product-card:nth-child(6) { animation-delay: 0.4s; }