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h3{margin:0;font-size:15px}.qb-modal-close{width:32px;height:32px;padding:0;background:transparent;font-size:20px}.qb-modal-body{font-size:13px}.qb-toast{position:fixed;bottom:24px;left:50%;transform:translate(-50%);z-index:200;padding:10px 18px;border-radius:8px;background:#000000d1;font-size:13px;pointer-events:none}@media(max-width:900px){.qb-left-shell:not(.is-collapsed){flex-basis:min(92vw,520px);min-width:320px}.qb-left-shell.is-collapsed{flex:0 0 52px;min-width:52px;max-width:52px}.qb-canvas-toolbar{max-width:calc(100% - 80px)}.qb-perspective-bar{flex-direction:column;align-items:stretch;bottom:12px;padding:12px}.qb-perspective-hint{text-align:center;white-space:normal}.qb-perspective-actions{justify-content:stretch}.qb-perspective-btn{flex:1}}.quick-build.app-perspective .qb-right-rail{display:none}.qb-perspective-bar{position:absolute;left:50%;bottom:16px;transform:translate(-50%);z-index:8;display:flex;align-items:center;gap:14px;max-width:calc(100% - 24px);padding:10px 14px;border-radius:10px;background:#141414f0;border:1px solid rgba(255,255,255,.12);box-shadow:0 8px 28px #00000073}.qb-perspective-hint{color:#ffffffc7;font-size:13px;white-space:nowrap}.qb-perspective-actions{display:flex;align-items:center;gap:8px}.qb-perspective-btn{min-height:36px;padding:0 16px;border-radius:8px;border:1px solid rgba(255,255,255,.18);background:#ffffff0f;color:#fff;font-size:13px;cursor:pointer}.qb-perspective-btn.primary{border-color:#409eff;background:#409eff;color:#fff;font-weight:600}.qb-perspective-btn:hover{filter:brightness(1.08)}.quick-build.app-perspective .canvas-shell{padding:8px}