#curtain3d{border:1px solid #e2e7ec;border-radius:12px;overflow:hidden;background:#fff;text-align:left;margin-top:20px;color:#243748}
#curtain3d .c3-heading{padding:15px 16px 8px;display:flex;justify-content:space-between;align-items:center;gap:12px}
#curtain3d .c3-heading strong{font-size:17px}
#curtain3d .c3-badge{font-size:11px;letter-spacing:.08em;color:#527084;background:#eef4f8;border-radius:4px;padding:4px 7px}
#curtain3d .c3-toolbar{display:flex;flex-wrap:wrap;gap:6px;padding:6px 16px 12px}
#curtain3d button{border:1px solid #d7e0e7;border-radius:6px;background:#fff;color:#304a5b;padding:7px 10px;font:inherit;font-size:12px;cursor:pointer;min-height:34px}
#curtain3d button:hover,#curtain3d button[aria-pressed=true]{background:#e9f3fa;border-color:#74a5c7}
#curtain3d button:focus-visible{outline:2px solid #1976ac;outline-offset:2px}
#curtain3d .c3-stage{position:relative;width:100%;height:600px;height:clamp(460px,65vh,760px);background:linear-gradient(#edf3f7,#fbfcfd);overflow:hidden}
#curtain3d canvas{display:block;width:100%;height:100%;touch-action:none;outline-offset:-3px}
#curtain3d .c3-status{font-size:12px;padding:10px 16px;margin:0;color:#587080;line-height:1.55}
#curtain3d .c3-help{font-size:11px;padding:0 16px 12px;margin:0;color:#71818c}
#curtain3d [hidden]{display:none!important}
#curtain3d:fullscreen{display:flex;flex-direction:column;border:0;border-radius:0}
#curtain3d:fullscreen .c3-stage{height:auto;flex:1;min-height:200px}
@media(max-width:480px){#curtain3d .c3-stage{height:420px}#curtain3d .c3-toolbar{padding-left:10px;padding-right:10px}}
@media print{#curtain3d .c3-toolbar,#curtain3d .c3-help{display:none!important}}