/* 可选尺寸检测只遮挡当前 PC 文档，不改系统壳、主题或页面内容。 */
.powell-content-guard-overlay {
    position: fixed;
    inset: 0;
    z-index: var(--ls-z-overlay);
    display: grid;
    place-items: center;
    padding: 24px;
    background: var(--ls-card-bg);
    color: var(--ls-text);
    box-sizing: border-box;
}
.powell-content-guard-panel {
    max-width: 480px;
    min-width: 0;
    text-align: center;
    line-height: 1.7;
}
.powell-content-guard-panel h2 {
    margin: 0 0 16px;
    font-size: 22px;
    font-weight: 500;
}
.powell-content-guard-panel p {
    margin: 0 0 24px;
    font-size: 14px;
    color: var(--ls-text-secondary);
}
.powell-content-guard-recheck {
    min-height: 40px;
    padding: 8px 20px;
    border: 1px solid var(--ls-primary);
    border-radius: var(--ls-radius);
    background: var(--ls-primary);
    color: var(--ls-card-bg);
    font: inherit;
    font-size: 14px;
    cursor: pointer;
    transition: background-color var(--ls-transition), border-color var(--ls-transition);
}
.powell-content-guard-recheck:not(:disabled):hover {
    background: var(--ls-primary-hover);
    border-color: var(--ls-primary-hover);
}
.powell-content-guard-recheck:focus-visible {
    outline: 2px solid var(--ls-primary);
    outline-offset: 3px;
}