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var(--line);padding-top:22px;position:static;max-height:none;overflow:visible}}.sheet-grid{display:grid;gap:18px;grid-template-columns:repeat(auto-fill,minmax(300px,1fr))}.handout{display:flex;flex-direction:column;gap:20px;max-width:760px}.pres{position:fixed;inset:0;background:var(--shell);z-index:100;display:flex;flex-direction:column}.pres .bar{display:flex;align-items:center;gap:16px;padding:12px 22px;border-bottom:1.5px solid var(--line);background:var(--paper)}.pres .bar .sp{flex:1}.pres .bar .step{font-size:13px;font-weight:700;letter-spacing:2px;color:var(--green)}.pres .bar .idx{font-size:12px;letter-spacing:2px;color:var(--muted)}.pres .stage{flex:1;position:relative}.pres .hint{position:absolute;left:22px;bottom:18px;font-size:12.5px;color:var(--muted);background:#f5f1e8e6;padding:8px 13px;border-radius:12px;border:1.5px solid var(--line)}.rf-node{width:100%;height:100%}.rf-node .unit{width:100%;height:100%;overflow:hidden}.rf-node.cur .unit{border-color:var(--orange);box-shadow:0 0 0 3px #cf694a47}.rf-handle{width:1px;height:1px;min-width:0;min-height:0;border:0;background:transparent;opacity:0}.react-flow__edge-path{transition:stroke .3s,opacity .3s}
