.result-area {
    margin-top: 0.75rem;
    display: none;
}

.preview-box {
    background-color: #f9fafb;
    border: 1px solid #eee;
    border-radius: 3px;
    padding: 0.75rem;
    text-align: center;
    min-height: 100px;
    display: flex;
    align-items: center;
    justify-content: center;
    background-image: linear-gradient(45deg, #e5e7eb 25%, transparent 25%), linear-gradient(-45deg, #e5e7eb 25%, transparent 25%), linear-gradient(45deg, transparent 75%, #e5e7eb 75%), linear-gradient(-45deg, transparent 75%, #e5e7eb 75%);
    background-size: 20px 20px;
    background-position: 0 0, 0 10px, 10px -10px, -10px 0px;
}

.night .preview-box {
    background-color: #1e1e1e; 
    border: 1px solid #333;
    border-radius: 3px;
    padding: 0.75rem;
    text-align: center;
    min-height: 100px;
    display: flex;
    align-items: center;
    justify-content: center;
    background-image: linear-gradient(45deg, #2d2d2d 25%, transparent 25%), linear-gradient(-45deg, #2d2d2d 25%, transparent 25%), linear-gradient(45deg, transparent 75%, #2d2d2d 75%), linear-gradient(-45deg, transparent 75%, #2d2d2d 75%);
    background-size: 20px 20px;
    background-position: 0 0, 0 10px, 10px -10px, -10px 0px;
}

.preview-box canvas {
    max-width: 100%;
    max-height: 300px;
    object-fit: contain;
}

.btn-download {
    display: block;
    margin-top: 0.75rem;
    text-align: center;
    text-decoration: none;
    padding: 0.4rem 0.6rem;
    background-color: #10b981;
    color: #fff;
    border-radius: 3px;
    transition: background 0.3s;
    cursor: pointer;
}

.layui-icon-upload.act{
    color: #05b672 !important;
}