.download-progress {
    position: fixed;
    right: 24px;
    bottom: 24px;
    z-index: 50;
    width: min(390px, calc(100% - 32px));
    padding: 18px 20px;
    color: var(--ink);
    border: 1px solid #ccd9e8;
    border-radius: 16px;
    background: rgba(255, 255, 255, .97);
    box-shadow: 0 18px 50px rgba(24, 50, 78, .2);
    opacity: 0;
    transform: translateY(18px);
    pointer-events: none;
    transition: opacity .2s ease, transform .2s ease;
}
.download-progress.visible { opacity: 1; transform: translateY(0); }
.progress-head { display: flex; align-items: center; justify-content: space-between; gap: 16px; }
.progress-head strong { min-width: 0; overflow: hidden; white-space: nowrap; text-overflow: ellipsis; }
.progress-head span { flex: 0 0 auto; color: var(--blue); font-weight: 800; }
.progress-track { height: 8px; margin: 13px 0 9px; overflow: hidden; border-radius: 999px; background: #e6edf5; }
.progress-track span { display: block; width: 0; height: 100%; border-radius: inherit; background: linear-gradient(90deg, var(--blue), #5a8cff); transition: width .15s ease; }
.progress-detail { color: var(--muted); font-size: .82rem; }
@media (max-width: 720px) { .download-progress { right: 16px; bottom: 16px; } }