body { margin: 0; overflow: hidden; }
canvas { display: block; }

#param-form {
    position: absolute;
    top: 80px;
    left: 10px;
    z-index: 10;
    padding: 10px;
    background: transparent;
    border-radius: 16px;
    border: 1px solid rgba(255,255,255,0.7);
    color: #fff;
    font-weight: 500;
}

#spacegroup {
    width: 60px;
    background: transparent;
    border: 1px solid rgba(255,255,255,0.7);
    color: #fff;
}

#spacegroup option {
    width: 60px;
    background: #fff;
    color: #000; /* 可选，保证字体可见 */
}


#basisNumber {
    width: 60px;
    background: transparent;
    border: 1px solid rgba(255,255,255,0.7);
    color: #fff;
}

/* #fhkl-input {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;       
} */

#fhkl-input input[type="number"] {
    width: 60px;
    background: transparent;
    border: 1px solid rgba(255,255,255,0.7);
    color: #fff;
    text-align-last: justify;
}
#isolation {
    width: 60px;
    
    background: transparent;
    border: 1px solid rgba(255,255,255,0.7);
    color: #fff;
}

#generate-btn {
    width: 100px;
    /* height: 20px; */
    padding: 10px;
    background: transparent;
    border-radius: 8px;
    border: 1px solid rgba(255,255,255,0.7);
    color: #fff;
    font-weight: 200;
}

#toggle-form-btn {
    position: absolute;
    top: 45px;
    left: 10px;
    z-index: 10;
    padding: 6px;
    /* background: transparent; */
    /* border-radius: 16px;
    border: 1px solid rgba(255,255,255,0.7); */
    color: #fff;
    font-weight: 500;
    margin-bottom:8px; 
    background:none; 
    border:none; 
    cursor:pointer; 
    font-size:14px; 
    display:flex; 
    align-items:center;
}


#download-obj-btn {
    position: absolute;
    top: 10px;
    left: 10px;
    z-index: 10;
    padding: 6px;
    background: transparent;
    border-radius: 16px;
    border: 1px solid rgba(255,255,255,0.7);
    color: #fff;
    font-weight: 500;
}

#download-gltf-btn {
    position: absolute;
    top: 10px;
    left: 120px;
    z-index: 10;
    padding: 6px;
    background: transparent;
    border-radius: 16px;
    border: 1px solid rgba(255,255,255,0.7);
    color: #fff;
    font-weight: 500;
}

#download-vtk-btn {
    position: absolute;
    top: 10px;
    left: 230px;
    z-index: 10;
    padding: 6px;
    background: transparent;
    border-radius: 16px;
    border: 1px solid rgba(255,255,255,0.7);
    color: #fff;
    font-weight: 500;
}