.user-announcement{box-sizing:border-box;width:min(520px,calc(100vw - 32px));max-height:min(80vh,700px);padding:26px;border:1px solid rgba(120,160,200,.28);border-radius:20px;background:var(--app-panel,#101c2e);color:var(--app-text,#edf5ff);box-shadow:0 24px 80px rgba(0,0,0,.3)}
.user-announcement::backdrop{background:rgba(4,12,22,.65);backdrop-filter:blur(4px)}
.user-announcement h2{margin:0 0 16px;font-size:22px;line-height:1.3;overflow-wrap:anywhere}
.user-announcement-text{white-space:pre-wrap;overflow-wrap:anywhere;line-height:1.6;max-height:48vh;overflow:auto}
.user-announcement-close{display:block;margin:22px 0 0 auto;padding:11px 24px;border:0;border-radius:12px;background:#2387dc;color:white;font:inherit;cursor:pointer}
html[data-site-theme=day] .user-announcement{background:#fff;color:#203449}