.pwa-install-banner {
    position: fixed;
    right: 20px;
    bottom: 20px;
    z-index: 200;
    width: min(430px, calc(100vw - 32px));
    padding: 13px 42px 13px 13px;
    display: flex;
    align-items: center;
    gap: 11px;
    border: 1px solid var(--line, #dfe4ed);
    border-radius: 14px;
    background: var(--surface, #fff);
    color: var(--ink, #212737);
    box-shadow: 0 16px 45px rgba(19, 28, 48, .2);
    opacity: 0;
    pointer-events: none;
    transform: translateY(20px);
    transition: opacity .22s ease, transform .22s ease;
}
.pwa-install-banner.show { opacity: 1; pointer-events: auto; transform: translateY(0); }
.pwa-install-banner img { width: 44px; height: 44px; flex: none; border-radius: 11px; }
.pwa-install-banner > div { display: flex; flex: 1; min-width: 0; flex-direction: column; gap: 3px; }
.pwa-install-banner strong { font-size: 13px; }
.pwa-install-banner span { color: var(--muted, #697489); font-size: 10px; line-height: 1.45; }
.pwa-install-action { height: 34px; padding: 0 13px; flex: none; border: 0; border-radius: 8px; background: var(--primary, #3157d5); color: #fff; font: inherit; font-size: 11px; font-weight: 700; cursor: pointer; }
.pwa-install-close { position: absolute; right: 8px; top: 7px; width: 28px; height: 28px; border: 0; border-radius: 7px; background: transparent; color: var(--muted, #697489); font-size: 20px; cursor: pointer; }
.pwa-install-close:hover { background: rgba(128, 138, 155, .12); }
@media (max-width: 620px) {
    .pwa-install-banner { right: 16px; bottom: 16px; align-items: flex-start; }
    .pwa-install-action { align-self: center; }
}