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transparent}::-webkit-scrollbar{width:5px;height:5px}::-webkit-scrollbar-track{background:transparent}::-webkit-scrollbar-thumb{background:#2a2a2a;border-radius:3px}::-webkit-scrollbar-thumb:hover{background:#3a3a3a}.ppt-app{display:flex;flex-direction:column;height:100vh;width:100vw;overflow:hidden;background:var(--bg)}.ppt-body{display:flex;flex:1;min-height:0;overflow:hidden}.ppt-toolbar{display:flex;align-items:center;gap:4px;background:var(--surface);border-bottom:1px solid var(--border);padding:6px 12px;height:48px;flex-shrink:0;overflow-x:auto;scrollbar-width:none}.ppt-toolbar::-webkit-scrollbar{display:none}.ppt-tb-group{display:flex;align-items:center;gap:2px}.ppt-tb-sep{width:1px;height:24px;background:var(--border);margin:0 4px;flex-shrink:0}.ppt-btn{display:flex;align-items:center;justify-content:center;gap:4px;padding:5px 9px;border-radius:5px;border:1px solid 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