.simulation-stage{background:#061a30;border-color:#123e62;padding:12px}.simulation-toolbar{display:flex;align-items:center;gap:6px;flex-wrap:wrap;color:#d4eaff}.simulation-toolbar .btn{padding:9px 13px;font-size:12px}.simulation-help{font-size:11px;color:#a7c7e3;margin-left:auto}.three-stage{height:480px;min-height:320px;margin-top:10px;border-radius:12px;overflow:hidden;position:relative;background:radial-gradient(circle at 50% 30%,#124e76,#061a30 70%)}.three-stage canvas{display:block;width:100%;height:100%}.stage-badge{position:absolute;left:14px;top:14px;border:1px solid #75dcff;color:#d8f9ff;padding:7px 10px;border-radius:9px;background:#082a45cc;z-index:2;font-weight:700}.stage-hint{position:absolute;left:50%;top:50%;transform:translate(-50%,-50%);color:#b7d7ee;font-size:13px;pointer-events:none}.three-stage canvas~.stage-hint{display:none}@media(max-width:700px){.three-stage{height:360px}.simulation-help{width:100%;margin-left:0}.simulation-toolbar .btn{flex:1}}