body {
    background: #fff;
    font-family: Arial, sans-serif;
    margin: 0;
    padding: 20px;
}
h1 {
    text-align: center;
}
#model-grid {
    display: grid;
    gap: 10px;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    max-width: 1100px;
    margin: 0 auto;
}
.model-card {
    background: #fff;
    border-radius: 6px;
    box-shadow: 0 1px 3px rgba(0,0,0,0.05);
    border: 1px solid #e0e0e0;
    display: flex;
    flex-direction: column;
    align-items: center;
}
.model-card span {
    margin-top: 5px;
    font-size: 1rem;
    color: #222;
}
model-viewer {
    width: 100%;
    height: 400px;
    background-color: #fff;
}
@media (max-width: 1000px) {
    #model-grid {
        grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    }
    model-viewer {
        height: 300px;
    }
}