.iuc-overlay {
    position: fixed;
    inset: 0;
    z-index: 4000;
    display: none;
    font-family: "Microsoft YaHei", "微软雅黑", "SimSun", "宋体", Arial, sans-serif;
}

.iuc-overlay.iuc-open {
    display: block;
}

.iuc-backdrop {
    position: absolute;
    inset: 0;
    background: rgba(0, 0, 0, 0.6);
}

.iuc-dialog {
    position: absolute;
    left: 50%;
    top: 50%;
    transform: translate(-50%, -50%);
    min-width: 360px;
    max-width: 480px;
    padding: 16px 20px 14px;
    background: #1f1f1f;
    color: #f5f5f5;
    border-radius: 8px;
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.45);
}

.iuc-title {
    margin: 0 0 8px;
    font-size: 16px;
    font-weight: bold;
    color: #ffffff;
}

.iuc-body {
    font-size: 13px;
    line-height: 1.6;
}

.iuc-file-info {
    margin-bottom: 8px;
}

.iuc-file-name {
    font-weight: 500;
    color: #ffffff;
    word-break: break-all;
}

.iuc-file-size {
    margin-top: 2px;
    font-size: 12px;
    color: #999999;
}

.iuc-mode-group {
    display: flex;
    gap: 16px;
    margin: 10px 0 6px;
}

.iuc-mode-option {
    font-size: 13px;
    color: #f0f0f0;
}

.iuc-mode-option input {
    margin-right: 4px;
}

.iuc-quality-group {
    margin: 8px 0;
}

.iuc-quality-label {
    font-size: 13px;
    margin-bottom: 4px;
}

.iuc-quality-value {
    color: #4caf50;
    font-weight: 500;
}

.iuc-quality-range {
    width: 100%;
}

.iuc-quality-marks {
    margin-top: 2px;
    font-size: 11px;
    color: #888888;
}

.iuc-hint {
    margin-top: 6px;
    font-size: 12px;
    color: #bbbbbb;
}

.iuc-status {
    margin-top: 4px;
    font-size: 12px;
    color: #ffcc66;
    min-height: 16px;
}

.iuc-footer {
    margin-top: 12px;
    text-align: right;
}

.iuc-btn {
    min-width: 72px;
    height: 28px;
    padding: 0 12px;
    margin-left: 8px;
    border-radius: 4px;
    border: none;
    font-size: 13px;
    cursor: pointer;
    font-family: "Microsoft YaHei", "微软雅黑", "SimSun", "宋体", Arial, sans-serif;
}

.iuc-btn-cancel {
    background: #3a3a3a;
    color: #dddddd;
}

.iuc-btn-cancel:hover {
    background: #4a4a4a;
}

.iuc-btn-primary {
    background: #0f7ae5;
    color: #ffffff;
}

.iuc-btn-primary:hover {
    background: #0c65be;
}

.iuc-btn:disabled,
.iuc-btn[disabled] {
    opacity: 0.6;
    cursor: default;
}