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var(--primary-surface)}.settings-message{font-size:13px;font-weight:500}.settings-message--error{color:var(--danger)}.settings-message--success{color:var(--success)}.settings-active-month{margin-top:var(--sp-3);font-size:13px;color:var(--text-secondary)}.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}.btn-secondary{background:var(--bg-tertiary);color:var(--text-secondary);font-weight:600}.btn-secondary:hover{background:var(--border-primary);color:var(--text-primary)}.btn-success{background:var(--success);color:#fff}.materials-page{max-width:var(--content-max);margin:0 auto;padding:var(--sp-10) var(--sp-8)}.materials-header{margin-bottom:var(--sp-6)}.materials-add{display:flex;gap:var(--sp-2);margin-bottom:var(--sp-6);padding:var(--sp-4);background:var(--bg-secondary);border:1px solid var(--border-secondary);border-radius:var(--radius-md)}.materials-add-select{padding:var(--sp-3) 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var(--border-secondary)}.materials-card-date{font-size:12px;color:var(--text-tertiary)}.board-page{max-width:var(--content-max);margin:0 auto;padding:var(--sp-10) var(--sp-8)}.board-header{display:flex;align-items:center;justify-content:space-between;gap:var(--sp-4);margin-bottom:var(--sp-6)}.board-header-actions{display:flex;gap:var(--sp-2)}.board-layout{display:grid;grid-template-columns:1fr 320px;gap:var(--sp-8);align-items:start}.board-section{margin-bottom:var(--sp-6)}.board-section-title{font-size:14px;font-weight:700;color:var(--text-primary);margin-bottom:var(--sp-3);display:flex;align-items:center;gap:var(--sp-2)}.board-count{display:inline-flex;align-items:center;justify-content:center;min-width:18px;height:18px;padding:0 5px;font-size:11px;font-weight:700;background:var(--primary);color:#fff;border-radius:var(--radius-full)}.board-empty{text-align:center;padding:var(--sp-8) 0;color:var(--text-tertiary);font-size:14px}.board-cards{display:flex;flex-direction:column;gap:var(--sp-3)}.board-card{padding:var(--sp-5);background:var(--bg-secondary);border:1px solid var(--border-secondary);border-radius:var(--radius-md);transition:border-color var(--duration-fast) ease}.board-card:hover{border-color:var(--border-primary)}.board-card--pinned{background:var(--primary-surface);border-color:transparent}.board-card--unread{border-left:3px solid var(--primary);cursor:pointer}.board-card-top{display:flex;align-items:center;gap:var(--sp-2);margin-bottom:var(--sp-2)}.board-cat{font-size:11px;font-weight:600;padding:2px 8px;border-radius:var(--radius-full)}.board-cat--sm{font-size:10px;padding:1px 6px}.board-dday{font-size:11px;font-weight:700;padding:2px 8px;border-radius:var(--radius-full)}.board-dday--normal{background:var(--bg-tertiary);color:var(--text-secondary)}.board-dday--soon{background:var(--warning-surface);color:#b45309}.board-dday--urgent{background:var(--danger-surface);color:var(--danger)}.board-dday--overdue{background:var(--danger);color:#fff}.board-pin-btn{margin-left:auto;font-size:14px;padding:var(--sp-1);border-radius:var(--radius-xs);transition:background var(--duration-fast) ease}.board-pin-btn:hover{background:var(--bg-tertiary)}.board-del-btn{font-size:16px;padding:var(--sp-1);color:var(--text-tertiary);border-radius:var(--radius-xs);transition:all var(--duration-fast) ease}.board-del-btn:hover{color:var(--danger);background:var(--danger-surface)}.board-card-title{font-size:15px;font-weight:700;color:var(--text-primary);margin-bottom:var(--sp-2)}.board-card-content{font-size:14px;color:var(--text-secondary);line-height:1.5;margin-bottom:var(--sp-3);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}.board-card-meta{display:flex;align-items:center;justify-content:space-between;font-size:12px;color:var(--text-tertiary)}.board-action-list{display:flex;flex-direction:column;gap:var(--sp-2)}.board-action-row{display:flex;align-items:center;gap:var(--sp-3);padding:var(--sp-3) var(--sp-4);border:1px solid var(--border-secondary);border-radius:var(--radius-sm);transition:border-color var(--duration-fast) ease}.board-action-row:hover{border-color:var(--border-primary)}.board-action-row--done{opacity:.6}.board-check{font-size:16px;padding:var(--sp-1);flex-shrink:0;cursor:pointer;border-radius:var(--radius-xs);transition:background var(--duration-fast) ease}.board-check:hover{background:var(--bg-tertiary)}.board-check--done{color:var(--success)}.board-action-info{flex:1;min-width:0;display:flex;flex-direction:column;gap:2px}.board-action-title{font-size:13px;font-weight:600;color:var(--text-primary)}.board-action-title--done{text-decoration:line-through;color:var(--text-tertiary)}.board-action-notice{font-size:11px;color:var(--text-tertiary)}.board-action-assignee{font-size:12px;font-weight:600;color:var(--primary);min-width:50px;flex-shrink:0}.board-action-due{font-size:11px;color:var(--text-tertiary);white-space:nowrap}.board-notice-list{display:flex;flex-direction:column;gap:var(--sp-3)}.board-notice-item{padding:var(--sp-4);background:var(--bg-secondary);border:1px solid 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var(--border-secondary);border-radius:var(--radius-lg)}.dashboard-section-title{font-size:14px;font-weight:700;color:var(--text-primary);margin-bottom:var(--sp-5);display:flex;align-items:center;gap:var(--sp-2)}.attendance-rate-display{display:flex;align-items:baseline;gap:var(--sp-2);margin-bottom:var(--sp-4)}.attendance-rate-number{font-size:42px;font-weight:800;color:var(--primary);line-height:1;letter-spacing:-1px}.attendance-rate-unit{font-size:16px;font-weight:600;color:var(--text-tertiary)}.attendance-stats{display:flex;gap:var(--sp-6)}.attendance-stat{display:flex;flex-direction:column;gap:2px}.attendance-stat-label{font-size:12px;color:var(--text-tertiary)}.attendance-stat-value{font-size:18px;font-weight:700;color:var(--text-primary)}.score-chart-container{padding:var(--sp-2)}.score-chart-container canvas{width:100%!important;border-radius:var(--radius-sm)}.comment-month{border-bottom:1px solid var(--border-secondary)}.comment-month:last-child{border-bottom:none}.comment-month-header{display:flex;align-items:center;justify-content:space-between;padding:var(--sp-3) 0;cursor:pointer;font-size:14px;font-weight:600;color:var(--text-primary)}.comment-month-header:hover{color:var(--primary)}.comment-month-body{padding:0 0 var(--sp-4);font-size:14px;color:var(--text-secondary);line-height:1.6}.comment-score-row{display:flex;align-items:center;gap:var(--sp-3);padding:var(--sp-2) 0;font-size:13px}.comment-score-subject{font-weight:600;color:var(--text-primary);min-width:60px}.comment-score-value{font-weight:700;color:var(--primary)}.comment-total{padding:var(--sp-3);background:var(--bg-tertiary);border-radius:var(--radius-sm);margin-top:var(--sp-2);font-size:13px;line-height:1.5}.student-info-grid{display:grid;grid-template-columns:1fr 1fr;gap:var(--sp-3) 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