.certificate-scroll-container {
    width: 100%;
    overflow: hidden;
    position: relative;
    padding: 30px 0;
    margin: 30px 0;
}

.certificate-scroll-track {
    display: flex;
    animation: certificateScroll 30s linear infinite;
    width: calc(400px * 8); /* 4 certificates x 2 sets for seamless loop */
}

.certificate-card {
    flex: 0 0 350px;
    margin: 0 25px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    border-radius: 15px;
    overflow: hidden;
    transition: all 0.3s ease;
}

.certificate-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 40px rgba(67, 97, 238, 0.15);
}

.certificate-image {
    width: 100%;
    height: auto;
    display: block;
}

.certificate-info {
    padding: 15px;
    background: white;
    text-align: center;
}

.certificate-info h4 {
    margin: 0;
    color: var(--dark-color);
    font-size: 1.2rem;
}

.certificate-info p {
    margin: 5px 0 0;
    color: var(--gray-color);
    font-size: 0.9rem;
}

@keyframes certificateScroll {
    0% {
        transform: translateX(0);
    }
    100% {
        transform: translateX(calc(-400px * 4)); /* 4 certificates */
    }
}

.certificate-scroll-container:hover .certificate-scroll-track {
    animation-play-state: paused;
}

/* 响应式调整 */
@media (max-width: 991px) {
    .certificate-card {
        flex: 0 0 300px;
        margin: 0 20px;
    }
    
    .certificate-scroll-track {
        width: calc(340px * 8);
    }
    
    @keyframes certificateScroll {
        0% {
            transform: translateX(0);
        }
        100% {
            transform: translateX(calc(-340px * 4));
        }
    }
}

@media (max-width: 767px) {
    .certificate-card {
        flex: 0 0 250px;
        margin: 0 15px;
    }
    
    .certificate-scroll-track {
        width: calc(280px * 8);
    }
    
    @keyframes certificateScroll {
        0% {
            transform: translateX(0);
        }
        100% {
            transform: translateX(calc(-280px * 4));
        }
    }
}