:root{--ink:#163d36;--ink2:#28594f;--green:#236b53;--gold:#c3a477;--paper:#f5f6f2;--line:#dfe6df;--muted:#63766e;--red:#a63435;--shadow:0 12px 40px #18372c12;color-scheme:light;font-family:Inter,"Microsoft YaHei","PingFang SC",sans-serif;color:#243d34;background:var(--paper)}*{box-sizing:border-box}body{margin:0}button,input,select,textarea{font:inherit}button,a,input,select,textarea{outline-offset:3px}button{cursor:pointer;border:1px solid var(--line);background:white;color:var(--ink);border-radius:7px;padding:9px 15px;line-height:1.3}button:hover{border-color:var(--green);background:#f3f8f4}button:disabled{opacity:.5;cursor:wait}.primary{background:var(--green);border-color:var(--green);color:white}.primary:hover{background:var(--ink);color:white}.danger{color:var(--red)}.small{font-size:12px;padding:5px 10px}.link{border:0;background:none;color:var(--green);padding:0}.shell{display:grid;grid-template-columns:228px 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.calendar.single-day{grid-template-columns:1fr}.single-day .lesson-slot{max-width:650px}.single-day .day{min-height:220px}