.image-viewer { width: min(94vw, 1000px); padding: 0; border-radius: 8px; max-height: 94dvh; overflow: auto; }
.image-viewer > header { position: sticky; top: 0; z-index: 2; display: grid; grid-template-columns: minmax(0, 1fr) 44px; align-items: center; gap: 10px; padding: 12px 16px 0; background: var(--panel); border-bottom: 1px solid var(--line); }
.image-viewer h2 { font-size: 17px; margin: 0 0 4px; }
.image-viewer .icon-button { display: grid; place-items: center; flex: 0 0 44px; width: 44px; height: 44px; }
.image-viewer [data-image-size] { color: var(--muted); font-size: 11px; font-variant-numeric: tabular-nums; }
.image-save-guide { grid-column: 1 / -1; display: flex; align-items: center; gap: 10px; margin: 0 -16px; padding: 12px 16px; color: var(--ink); background: var(--soft); font-size: 13px; line-height: 1.6; }
.image-save-guide svg { width: 24px; height: 24px; flex: none; color: var(--navigation-accent); }
.image-save-guide b { display: block; font-size: 14px; }
.image-save-guide span { display: block; margin-top: 2px; font-size: 12px; color: var(--muted); }
.image-save-guide[hidden] { display: none; }
.image-viewer-surface { background: #e9e9e9; min-height: 180px; padding: 0; }
.image-viewer-surface img { display: block; width: 100%; height: auto; object-fit: contain; -webkit-touch-callout: default; user-select: auto; }
.image-viewer-surface[hidden], .image-viewer-surface img[hidden] { display: none; }
.image-viewer-status { color: var(--danger); padding: 0 18px; font-size: 12px; }
.image-viewer-status:empty { display: none; }
.image-viewer footer { display: flex; gap: 10px; justify-content: flex-end; padding: 14px 18px max(14px, env(safe-area-inset-bottom)); }
.image-viewer footer .button { min-height: 44px; }
.image-viewer .image-retry { display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: 10px; padding: 16px; }
.image-viewer .image-retry[hidden] { display: none; }
.image-viewer .image-retry p { margin: 0; font-size: 13px; color: var(--danger); }
img[data-preview-src]:is(:not([src]), [data-preview-state="pending"], [data-preview-state="loading"]) { background: var(--strong); min-height: 60px; }
.image-delivery-guide { display: flex; align-items: center; flex-wrap: wrap; gap: 10px 20px; margin: 16px 0; padding: 12px 0; border-block: 1px solid var(--line); color: var(--text); font-size: 12px; line-height: 1.7; }
.image-delivery-guide > span { display: inline-flex; align-items: center; gap: 7px; color: var(--ink); }
.image-delivery-guide svg, .image-save-hint svg { width: 18px; height: 18px; flex: none; color: var(--navigation-accent); }
.image-delivery-guide ol { display: flex; flex-wrap: wrap; gap: 8px 16px; margin: 0; padding: 0; list-style: none; }
.image-delivery-guide li { display: flex; align-items: center; gap: 5px; }
.image-delivery-guide i { display: grid; place-items: center; width: 18px; height: 18px; border: 1px solid var(--line2); border-radius: 50%; color: var(--navigation-accent); background: var(--panel); font-size: 10px; font-style: normal; font-weight: 700; }
.image-save-hint { display: flex; align-items: flex-start; gap: 7px; margin: 10px 0 0; font-size: 12px; line-height: 1.7; color: var(--muted); }
.image-save-hint svg { margin-top: 1px; width: 16px; height: 16px; }
.image-save-hint strong { font-weight: 600; color: var(--text); }
.image-open-action { min-height: 44px; gap: 7px; padding: 10px 14px; text-decoration: none; font-size: 13px; line-height: 1.5; }
.image-open-action svg { width: 18px; height: 18px; flex: none; }
.image-history-tile { min-width: 0; margin: 0; }
.image-history-tile img { display: block; width: 100%; max-height: 480px; object-fit: contain; }
.image-history-tile figcaption { display: grid; align-content: start; gap: 10px; padding: 12px 0; }
.image-history-tile figcaption > b { font-size: 13px; overflow-wrap: anywhere; }
.image-history-tile .image-save-hint { margin: 0; }
@media (max-width: 820px) {
  .image-viewer { width: calc(100vw - 16px); max-width: none; max-height: calc(100dvh - 16px); }
  .image-viewer footer .button { width: 100%; }
  .image-delivery-guide { gap: 8px; }
  .image-delivery-guide ol { width: 100%; gap: 6px 10px; font-size: 11px; }
}