/* /device/：词柄全屏 3D，和首页同一套暖砂底 */
.device-page .topbar .back { background: var(--ink); }
.viewer { position: relative; display: flex; flex-direction: column; min-height: 100vh; min-height: 100svh; padding-top: 64px; overflow: hidden; }
.viewer-title { position: absolute; z-index: 3; top: 96px; left: max(40px, calc((100% - 1280px) / 2 + 40px)); font-size: clamp(64px, 8vw, 120px); line-height: 1; pointer-events: none; }
.viewer-stage { position: relative; flex: 1; min-height: 520px; touch-action: pan-y; -webkit-user-select: none; user-select: none; }
.viewer-poster { position: absolute; inset: 0; margin: auto; width: auto; height: auto; max-width: 86%; max-height: 84%; pointer-events: none; transition: opacity 0.6s var(--ease); }
.viewer-poster.is-card { border-radius: 26px; box-shadow: 0 0 0 1px var(--line), 0 40px 80px -34px rgba(0, 0, 0, 0.36); }
#viewerCanvas { position: absolute; inset: 0; width: 100%; height: 100%; opacity: 0; cursor: grab; transition: opacity 0.8s var(--ease); }
#viewerCanvas:active { cursor: grabbing; }
.viewer-stage[data-state="3d"] #viewerCanvas { opacity: 1; }
.viewer-stage[data-state="3d"] .viewer-poster { opacity: 0; }

.labels { position: absolute; inset: 0; z-index: 2; pointer-events: none; }
.label { position: absolute; left: 0; top: 0; display: inline-flex; align-items: center; gap: 8px; white-space: nowrap; transition: opacity 0.3s; will-change: transform; }
.label i { flex: none; box-sizing: content-box; width: 9px; height: 9px; border-radius: 50%; background: var(--cyan); border: 3px solid rgba(255, 253, 248, 0.9); }
.label .line { flex: none; width: 28px; height: 1px; background: rgba(43, 37, 33, 0.55); }
.label .txt { display: inline-flex; align-items: baseline; gap: 8px; padding: 7px 13px; border-radius: 12px; background: rgba(255, 253, 248, 0.9); box-shadow: inset 0 0 0 1px var(--line); color: var(--text); font-size: 15px; font-weight: 700; }
.label small { color: var(--text-2); font-size: 13px; font-weight: 500; }
.label.flip { flex-direction: row-reverse; }
.label.hide, .labels.off .label { opacity: 0; }

.viewer-controls { position: relative; z-index: 4; display: flex; flex-wrap: wrap; justify-content: center; align-items: center; gap: 8px; width: fit-content; max-width: calc(100% - 32px); margin: 0 auto 32px; padding: 6px; border: 1px solid rgba(43, 37, 33, 0.1); border-radius: 28px; background: rgba(43, 37, 33, 0.78); -webkit-backdrop-filter: blur(14px); backdrop-filter: blur(14px); }
.viewer .stage-status { top: 16px; }

@media (max-width: 760px) {
  .viewer-title { top: 86px; left: 20px; font-size: 56px; }
  .viewer-stage { min-height: 460px; }
  .label .txt { padding: 5px 10px; font-size: 13px; }
  .label small { display: none; }
  .label .line { width: 14px; }
}