#pwa-banner {
  position: fixed;
  bottom: 0;
  inset-inline: 0;
  z-index: 9999;
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 16px;
  background: #052F7E;
  color: #fff;
  font-size: 14px;
  box-shadow: 0 -2px 8px rgba(0,0,0,.2);
  direction: inherit; /* follow the page's dir (ar=rtl, en/zh-CN=ltr) instead of forcing rtl */
  padding-bottom: calc(12px + env(safe-area-inset-bottom));
}
#pwa-banner span { flex: 1; }
#pwa-banner button { border: 0; border-radius: 6px; padding: 8px 14px; cursor: pointer; }
#pwa-banner .pwa-install { background: #fff; color: #052F7E; font-weight: bold; }
#pwa-banner .pwa-close { background: transparent; color: #fff; font-size: 16px; }