.history-plan{margin-top:28px;border:1px solid var(--line);border-radius:20px;padding:20px;background:var(--paper)}.history-plan-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:16px}.history-plan-head h2,.history-plan-head span{margin:0;display:block}.history-plan-head span{color:var(--muted)}.history-plan-head>b{background:var(--mist);padding:8px 12px;border-radius:20px}.student-history{max-width:1450px}.student-history .week-chart{overflow:auto}.student-history .week-row{min-width:1000px}.student-history .student-slot{display:flex;flex-direction:column}.student-history .student-slot small{color:var(--muted)}