.fba-container {
    max-width: 1000px;
    margin: 20px auto;
}

.box-card {
    margin-bottom: 20px;
}

.title {
    text-align: center;
    margin: 0;
    font-size: 24px;
    color: #303133;
}

.drag-area {
    margin: 20px 0;
    text-align: center;

    .action-buttons {
        margin-top: 20px;
        text-align: center;
    }

    .preview-container {
        display: flex;
        justify-content: space-between;
        margin-top: 30px;
        gap: 20px;
    }

    .preview-box {
        flex: 1;
        border: 1px solid #EBEEF5;
        border-radius: 4px;
        overflow: hidden;
    }

    .preview-box .header {
        background-color: #F5F7FA;
        padding: 10px 15px;
        border-bottom: 1px solid #EBEEF5;
        font-weight: bold;
        color: #606266;
    }

    .preview-box .content {
        height: 500px;
    }

    iframe {
        width: 100%;
        height: 100%;
        border: none;
    }

    .disclaimer {
        margin-top: 30px;
        padding: 15px;
        background-color: #fdf6ec;
        color: #e6a23c;
        border-radius: 4px;
        font-size: 14px;
        line-height: 1.5;
        text-align: center;
    }

    #fileList {
        margin-top: 20px;
    }