/* 公祭日全站灰度：使用固定遮罩 + backdrop-filter，避免 filter 破坏 fixed 布局 */
#memorial-grayscale-overlay {
    display: none;
    position: fixed;
    inset: 0;
    z-index: 2147483646;
    pointer-events: none;
    backdrop-filter: grayscale(100%);
    -webkit-backdrop-filter: grayscale(100%);
}

html.memorial-grayscale-mode #memorial-grayscale-overlay {
    display: block;
}

/* 不支持 backdrop-filter 的浏览器降级（可能影响 fixed 定位，但保留灰度能力） */
@supports not ((backdrop-filter: grayscale(1)) or (-webkit-backdrop-filter: grayscale(1))) {
    html.memorial-grayscale-mode #memorial-grayscale-overlay {
        display: none;
    }

    html.memorial-grayscale-mode {
        filter: grayscale(100%);
    }
}

.memorial-notice-bar {
    display: none;
    position: relative;
    z-index: 2147483647;
    margin: 0;
    padding: 10px 14px;
    background: #f5f5f5;
    color: #333;
    font-size: 13px;
    line-height: 1.6;
    text-align: center;
    border-bottom: 1px solid #e0e0e0;
}

.memorial-notice-bar.show {
    display: block;
}

@media (max-width: 576px) {
    .memorial-notice-bar {
        font-size: 12px;
        padding: 8px 12px;
    }
}