/* ============================================================
   ПЛАСТИК — 3D-сцена «Оснастка для запайки» (страница оснастки)
   ============================================================ */
.seal-stage {
  position: relative;
  width: 100%;
  aspect-ratio: 16 / 9;
  max-height: 78vh;
  overflow: hidden;
  border-radius: var(--r-lg);
  background: radial-gradient(ellipse at 50% 42%, #FFFFFF 0%, #FBFAF8 50%, #EEE9E0 100%);
  box-shadow: var(--shadow-md);
  isolation: isolate;
}
.seal-root {
  position: absolute; left: 50%; top: 50%;
  width: 1920px; height: 1080px;
  transform-origin: center center;
  overflow: hidden;
  opacity: 0;
  transition: opacity 1s var(--ease);
}
.seal-stage.is-live .seal-root { opacity: 1; }
.seal-root canvas { position: absolute; inset: 0; }
.seal-ov { position: absolute; inset: 0; width: 1920px; height: 1080px; pointer-events: none; }
.seal-vig { position: absolute; inset: 0; pointer-events: none; background: radial-gradient(ellipse at 50% 50%, rgba(0,0,0,0) 58%, rgba(70,55,40,.10) 100%); }
.seal-fade { position: absolute; inset: 0; background: #FBFAF8; opacity: 0; pointer-events: none; }

/* выноски внутри сцены (координаты в пространстве 1920×1080) */
.seal-labels .lab {
  position: absolute;
  min-width: 420px; max-width: 560px;
  padding: 18px 26px 20px;
  background: rgba(255,255,255,.88);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border-radius: 20px;
  box-shadow: 0 10px 34px rgba(60,45,30,.12);
  font-family: var(--f-body);
  color: var(--ink);
}
.seal-labels .lab .n { font-family: var(--f-head); font-weight: 700; font-size: 22px; color: var(--orange); letter-spacing: .14em; }
.seal-labels .lab .t { font-family: var(--f-head); font-weight: 800; font-size: 44px; line-height: 1.05; text-transform: uppercase; margin-top: 4px; }
.seal-labels .lab .d { font-size: 22px; color: var(--ink-2); margin-top: 8px; }
.seal-ov polyline { stroke: var(--orange); }
.seal-ov circle { fill: var(--orange); }

/* подпись под сценой — для узких экранов */
.seal-caption {
  display: none;
  min-height: 74px;
  margin-top: 14px;
  padding: 0 4px;
}
.seal-caption .t { font-family: var(--f-head); font-weight: 800; font-size: 26px; text-transform: uppercase; line-height: 1.05; }
.seal-caption .t::before { content: ''; display: inline-block; width: 10px; height: 10px; border-radius: 50%; background: var(--orange); margin-right: 10px; vertical-align: middle; }
.seal-caption .d { color: var(--ink-2); font-size: 14px; margin-top: 4px; }
.seal-caption > div { animation: sealCap .6s var(--ease) both; }
@keyframes sealCap { from { opacity: 0; transform: translateY(8px); } to { opacity: 1; transform: none; } }

@media (max-width: 760px) {
  .seal-stage { border-radius: 22px; max-height: none; }
  .seal-labels, .seal-ov { display: none; }
  .seal-caption { display: block; }
}
@media (prefers-reduced-motion: reduce) {
  .seal-caption > div { animation: none; }
}