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var(--line);border-radius:6px;padding:10px;background:#fbfdfe}.subject-workspace{display:block}.modal-backdrop{position:fixed;top:0;right:0;bottom:0;left:0;z-index:20;background:#0c22303d;display:grid;place-items:center;padding:28px}.modal-card{width:min(1040px,calc(100vw - 56px));max-height:calc(100vh - 64px);overflow:auto}.subject-modal{gap:16px}.subject-modal-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px}.subject-modal-grid.one-col{grid-template-columns:1fr}.subject-modal-grid .check-row{align-content:center}.inline-section{display:grid;gap:8px}.subject-modal-grid .inline-section{grid-column:1 / -1}.compact-section .option-grid{grid-template-columns:repeat(auto-fit,minmax(76px,1fr))}.section-title{display:flex;flex-wrap:wrap;gap:6px 12px;align-items:baseline}.section-title span{color:var(--muted);font-size:13px}.subject-modal-grid small{color:var(--muted);font-size:12px;line-height:1.5}.fusion-rule-guide{display:grid;gap:12px;border:1px solid var(--line);border-radius:6px;background:#f8fbfc;padding:12px}.guide-head{display:flex;flex-wrap:wrap;gap:8px 14px;align-items:baseline;justify-content:space-between}.guide-head span,.advanced-rule-editor p{color:var(--muted);font-size:13px}.formula-visual{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:8px}.formula-visual div{display:grid;gap:4px;border:1px solid #d9e7ee;border-radius:6px;background:#fff;padding:9px 10px}.formula-visual code{color:var(--ink);font-size:13px;font-weight:800}.formula-visual span{color:var(--muted);font-size:12px;line-height:1.5}.advanced-rule-editor{border-top:1px solid var(--line);padding-top:10px}.advanced-rule-editor summary{cursor:pointer;color:var(--brand);font-weight:800}.inline-input-action{display:grid;grid-template-columns:minmax(0,1fr) auto;gap:8px;align-items:center}.inline-input-action 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var(--line);border-radius:6px;overflow:hidden}.slot-corner,.slot-day,.slot-period,.slot-cell{min-height:42px;border:0;border-right:1px solid var(--line);border-bottom:1px solid var(--line);display:grid;place-items:center;background:#fff}.slot-corner,.slot-day,.slot-period{color:#234152;font-weight:800;background:linear-gradient(180deg,#edf6fa,#e4f0f6)}.slot-cell{color:var(--muted);border-radius:0;box-shadow:none;min-width:0}.slot-cell:hover{background:#f4fbfe;transform:none}.slot-cell.selected{background:var(--warning-bg);color:var(--warning);font-weight:800}.teacher-picker{margin-top:16px}.quick-filter{width:100%;margin-bottom:10px}.teacher-chip-row{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:10px}.compact-options{max-height:300px;overflow:auto}.object-options{grid-template-columns:repeat(auto-fit,minmax(118px,1fr));max-height:220px}.period-options{grid-template-columns:repeat(auto-fit,minmax(92px,1fr))}.inline-tag{display:inline-flex;align-items:center;min-height:26px;margin:2px 6px 2px 0;padding:4px 8px;border:1px solid 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button.active{background:var(--ink);border-color:var(--ink);color:#fff}.quick-letter-row button small{color:currentColor;font-size:10px;opacity:.72}.class-teacher-grid{grid-template-columns:repeat(3,minmax(0,1fr));max-height:220px}.teacher-choice span{display:grid;gap:2px}.teacher-choice strong{color:var(--ink)}.teacher-choice em{color:var(--brand);font-style:normal;font-size:12px}.teacher-choice small{color:var(--muted);font-size:12px}.teacher-chip{display:inline-flex;align-items:center;gap:6px;margin:2px 5px 2px 0;border:1px solid var(--info-border);border-radius:999px;background:var(--info-bg);color:var(--info);padding:5px 9px;font-size:12px;font-weight:750;white-space:nowrap}.teacher-chip.removable button{border:0;background:transparent;box-shadow:none;color:var(--danger);padding:0;font-size:12px;transform:none}.teacher-chip.removable span{color:var(--danger);font-weight:750}.teacher-chip.removable:hover{border-color:var(--danger-border);background:var(--danger-bg);color:var(--danger);box-shadow:none;transform:none}.class-assignment-list{display:grid;gap:8px}.compact-table th,.compact-table td{padding:9px 10px}.empty-inline{margin:0;color:var(--muted)}.data-panel{overflow-x:auto}.import-panel{display:grid;grid-template-columns:minmax(260px,1fr) minmax(520px,1.6fr);gap:18px;align-items:center;margin-bottom:14px}.import-panel h2,.import-panel p{margin:0}.import-panel p{margin-top:6px;color:var(--muted);line-height:1.6}.import-form{display:grid;grid-template-columns:minmax(160px,1fr) minmax(180px,1.1fr) minmax(190px,1fr) minmax(220px,1.2fr);gap:10px;align-items:center}.import-form select{box-sizing:border-box;width:100%;border:1px solid #ccdce5;border-radius:6px;padding:10px 11px;color:var(--ink);background:#fff;font:inherit}.matrix-head-actions{position:relative}.matrix-head-actions .primary{display:inline-flex;align-items:center;gap:6px}.advanced-tool-menu{position:relative}.advanced-tool-popover{position:absolute;right:0;top:calc(100% + 8px);z-index:15;width:220px;display:grid;gap:8px;padding:10px;border:1px solid var(--line);border-radius:8px;background:#fff;box-shadow:0 14px 40px #0f172a24}.advanced-tool-popover button{width:100%;justify-content:flex-start}.matrix-import-modal{width:min(920px,calc(100vw - 48px))}.matrix-import-modal>p{margin:0 0 14px;color:var(--muted);line-height:1.7}.operation-result-dialog{position:fixed;z-index:55;top:50%;left:50%;width:min(1120px,calc(100vw - 64px));max-height:calc(100vh - 80px);margin:0;overflow:auto;transform:translate(-50%,-50%);box-shadow:0 0 0 100vmax #0c223047,0 20px 60px #0f263538}.import-rule-summary{grid-column:1 / -1;display:grid;gap:4px;margin-top:4px;padding:10px 12px;border:1px solid var(--line);border-radius:6px;background:#f7fbfd}.import-rule-summary span{color:var(--muted);line-height:1.5}.import-rule-editor{margin-bottom:14px}.rule-editor-grid{display:grid;grid-template-columns:repeat(2,minmax(220px,1fr));gap:12px}.rule-editor-grid label{display:grid;gap:6px;color:var(--muted);font-size:14px}.rule-editor-grid input,.rule-editor-grid select,.rule-editor-grid textarea{box-sizing:border-box;width:100%;border:1px solid #ccdce5;border-radius:6px;padding:10px 11px;color:var(--ink);background:#fff;font:inherit}.rule-editor-grid .inline-check{grid-template-columns:18px 1fr;align-items:center;color:var(--ink)}.rule-editor-grid .inline-check input{width:16px}.rule-editor-note,.rule-editor-grid .modal-actions{grid-column:1 / -1}.file-picker{border:1px dashed #a7c7d7;background:#f7fcfe;border-radius:6px;color:var(--ink);display:flex;align-items:center;gap:8px;padding:10px 11px;cursor:pointer}.file-picker input{display:none}.matrix-check{display:grid;grid-template-columns:18px 1fr;align-items:center;gap:7px;color:var(--muted);font-size:14px}.matrix-check input{width:16px}.import-result{margin-bottom:14px}.result-grid{display:grid;grid-template-columns:repeat(5,minmax(120px,1fr));gap:10px}.result-grid span{background:#f7fbfd;border:1px solid var(--line);border-radius:6px;color:var(--muted);padding:10px}.result-grid strong{color:var(--ink);display:block;font-size:22px;margin-top:2px}.warning-list{color:var(--warning);margin:12px 0 0;padding-left:20px}.fusion-confirm-list{display:grid;gap:10px}.fusion-confirm-card{border:1px solid var(--info-border);border-radius:6px;background:var(--info-bg);padding:12px}.fusion-confirm-card p{margin:8px 0;color:var(--ink)}.fusion-confirm-card small{color:var(--muted)}.split-confirm-list{display:grid;gap:10px;margin-top:12px}.split-confirm-card{background:#fbfdff;border:1px solid var(--line);border-radius:6px;padding:12px}.split-confirm-title{align-items:center;display:flex;gap:12px;justify-content:space-between;margin-bottom:8px}.split-confirm-title strong{color:var(--ink);display:block}.split-confirm-title small{color:var(--muted)}.split-total-pill{border:1px solid var(--line);border-radius:999px;color:var(--muted);font-size:13px;padding:5px 9px;white-space:nowrap}.split-total-pill.ok{background:#eefbf3;border-color:#bee9cd;color:#237347}.split-total-pill.warn{background:#fff8e8;border-color:#f4d38b;color:#9a6a00}.split-confirm-card p,.split-warning{color:var(--muted);margin:8px 0}.split-warning{color:var(--warning);font-size:13px}.split-table-wrap{border:1px solid var(--line);border-radius:6px;overflow:auto}.split-confirm-table th,.split-confirm-table td{white-space:nowrap}.split-confirm-table input{border:1px solid #ccdce5;border-radius:6px;color:var(--ink);font:inherit;padding:7px 9px;width:92px}.matrix-audit-panel{margin-bottom:14px}.matrix-audit-panel .panel-head button{display:inline-flex;align-items:center;gap:7px}.audit-summary-grid{display:grid;grid-template-columns:repeat(4,minmax(150px,1fr));gap:10px;margin-bottom:12px}.audit-card{border:1px solid var(--line);border-radius:6px;padding:12px;background:#f9fcfd}.audit-card span,.audit-card small{color:var(--muted);display:block}.audit-card strong{display:block;font-size:25px;margin:3px 0}.audit-card.danger{background:var(--danger-bg);border-color:var(--danger-border)}.audit-card.danger strong{color:var(--danger)}.audit-card.warning{background:var(--warning-bg);border-color:var(--warning-border)}.audit-card.warning strong{color:var(--warning)}.audit-card.info{background:var(--info-bg);border-color:var(--info-border)}.audit-card.info strong{color:var(--info)}.audit-card.success{background:var(--success-bg);border-color:var(--success-border)}.audit-card.success strong{color:var(--success)}.audit-metrics{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:14px}.audit-metrics span{border:1px solid var(--line);border-radius:999px;color:var(--muted);background:#fff;padding:6px 10px;font-size:13px}.audit-empty{display:flex;align-items:center;gap:8px;color:var(--success);background:var(--success-bg);border:1px solid var(--success-border);border-radius:6px;padding:12px}.audit-issue-list{display:grid;gap:10px}.audit-issue{border:1px solid var(--line);border-radius:6px;background:#fff;padding:12px}.audit-issue.hard{border-color:var(--danger-border);background:var(--danger-bg)}.audit-issue.warning{border-color:var(--warning-border);background:var(--warning-bg)}.audit-issue.soft{border-color:var(--info-border);background:var(--info-bg)}.audit-issue-title{display:flex;align-items:flex-start;gap:9px;color:var(--ink)}.audit-issue-title strong,.audit-issue-title span{display:block}.audit-issue-title span{color:var(--muted);font-size:13px;margin-top:2px}.audit-issue p{margin:9px 0;color:var(--muted)}.audit-suggestion{border-left:3px solid rgba(22,125,153,.35);color:var(--ink);padding-left:10px}.audit-examples{display:flex;flex-wrap:wrap;gap:6px;margin-top:10px}.audit-examples span{background:#ffffffb8;border:1px solid rgba(96,114,128,.22);border-radius:6px;color:#455967;font-size:13px;padding:5px 8px}.matrix-panel{padding:0;overflow:hidden;max-width:100%}.matrix-panel .panel-head{padding:14px 16px 0;margin-bottom:10px}.matrix-panel .panel-head h2{font-size:22px}.matrix-scroll{width:100%;max-width:100%;max-height:calc(100vh - 300px);overflow:auto;border-top:1px solid var(--line)}.matrix-table{--matrix-class-col: 98px;--matrix-head-teacher-col: 90px;--matrix-total-periods-col: 70px;--matrix-subject-col: 94px;width:max-content;min-width:100%;table-layout:fixed;font-size:13px}.matrix-table th,.matrix-table td{box-sizing:border-box;min-width:var(--matrix-subject-col);width:var(--matrix-subject-col);max-width:var(--matrix-subject-col);padding:5px 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.sticky-col{z-index:5}.subject-head{padding:0}.subject-head button{width:100%;height:100%;min-height:36px;padding:5px 7px;border:0;border-radius:0;background:transparent;color:inherit;box-shadow:none;white-space:normal;line-height:1.25;font-size:13px}.subject-head button:hover,.subject-head.selected button{background:#d9eef7;box-shadow:none;transform:none}.matrix-cell-line{display:block;min-width:0;white-space:normal}.matrix-cell-line+.matrix-cell-line{border-top:1px dashed var(--line);margin-top:3px;padding-top:3px}.matrix-cell-line strong{color:var(--brand);margin-right:3px}.matrix-cell-line small{color:var(--muted);font-size:12px}.matrix-detail-backdrop{position:fixed;top:0;right:0;bottom:0;left:0;z-index:20;background:#0c223038;display:grid;place-items:center;padding:28px}.matrix-detail{width:min(980px,calc(100vw - 56px));max-height:calc(100vh - 70px);display:grid;grid-template-rows:auto minmax(0,1fr)}.matrix-detail .panel-head{margin-bottom:10px}.matrix-fullscreen-backdrop{z-index:24;padding:0;place-items:stretch}.matrix-fullscreen{width:100vw;height:100vh;max-height:100vh;border-radius:0;display:grid;grid-template-rows:auto minmax(0,1fr);padding:0}.matrix-fullscreen .panel-head{padding:14px 18px;margin-bottom:0;border-bottom:1px solid var(--line)}.matrix-fullscreen .matrix-scroll{max-height:none;height:100%;border-top:0}.detail-table-wrap{overflow:auto;border:1px solid var(--line)}.detail-edit-table th,.detail-edit-table td{white-space:nowrap}.detail-edit-table input{width:86px;border:1px solid #ccdce5;border-radius:6px;padding:8px 10px;color:var(--ink);font:inherit}table{border-collapse:collapse;width:100%}th,td{border:1px solid var(--line);padding:12px;text-align:left;vertical-align:top}th{background:linear-gradient(180deg,#edf6fa,#e4f0f6);color:#234152;font-weight:800}tr.selected td{background:var(--soft-blue)}tbody tr:hover td{background:#fbfdfe}td 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