/* 真正可访问的产品资料入口；不参与场景布局或渲染。 */
.viewer_sr_heading { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0,0,0,0); white-space: nowrap; border: 0; }
.settings_catalog_link { display: inline-flex; align-items: center; min-height: 32px; margin-top: .4em; color: var(--theme-action, #89C7FF); font-size: .875rem; line-height: 1.5; text-decoration: underline; text-underline-offset: .2em; }
.settings_catalog_link:focus-visible { outline: 2px solid var(--theme-focus, #6DBAFF); outline-offset: 3px; }
.search_fallback { position: fixed; inset: 0; z-index: 300; overflow: auto; padding: 28px; background: #090D17; color: #E4EDF7; font: 16px/1.8 Arial,"Microsoft YaHei",sans-serif; }
.search_fallback a { color: #89C7FF; }