.grading-layout{display:flex;height:844px}.g-left{flex:35%;border-right:1px solid var(--divider);display:flex;flex-direction:column;background:#fafbfc}.g-left-body{flex:1;overflow-y:auto;padding:0}.textbook-page{background:#fff;margin:10px;border-radius:6px;border:1px solid var(--border);padding:16px 18px;position:relative;min-height:520px}.textbook-header{text-align:center;margin-bottom:14px}.textbook-header .tb-badge{display:inline-block;background:var(--brand-primary);color:#fff;font-size:10px;padding:2px 8px;border-radius:10px;margin-bottom:4px}.textbook-header .tb-sub{font-size:var(--font-sm);color:var(--text-muted)}.tb-section{margin-bottom:14px}.tb-section-title{font-size:var(--font-md);font-weight:var(--fw-semibold);color:var(--brand-primary);margin-bottom:8px;padding:4px 0;border-bottom:1px dashed var(--border);display:flex;align-items:center;gap:6px}.tb-section-title .sec-icon{width:18px;height:18px;background:var(--brand-primary);color:#fff;border-radius:50%;font-size:10px;display:flex;align-items:center;justify-content:center}.tb-question{padding:6px 0;font-size:var(--font-sm);color:var(--text-primary);line-height:1.7}.tb-question .q-num{font-weight:var(--fw-semibold);color:var(--text-secondary)}.tb-question-extra{margin-left:18px;color:var(--text-secondary)}.answer-box{display:inline;color:var(--text-primary);padding:0 4px}.ai-mark{display:inline-flex;align-items:center;justify-content:center;width:20px;height:20px;border-radius:50%;font-size:12px;font-weight:var(--fw-bold);margin-left:4px;vertical-align:middle}.ai-mark-correct{background:#22c55e26;color:var(--success);border:1.5px solid var(--success)}.ai-mark-wrong{background:#ef444426;color:var(--danger);border:1.5px solid var(--danger)}.ai-mark-half{background:#f59e0b26;color:var(--warning);border:1.5px solid var(--warning)}.tb-tools{display:flex;align-items:center;justify-content:space-between;padding:8px 14px;border-top:1px solid var(--border);background:var(--bg-card)}.tb-tools-left{display:flex;gap:8px}.tb-tool-btn{width:32px;height:32px;border:1px solid var(--border);border-radius:6px;background:#fff;cursor:pointer;display:flex;align-items:center;justify-content:center;font-size:14px;color:var(--text-secondary)}.tb-tool-btn:hover{background:var(--brand-primary-light);color:var(--brand-primary);border-color:var(--brand-primary)}.tb-tool-btn.active{background:var(--brand-primary);color:#fff;border-color:var(--brand-primary)}.tb-pager{font-size:var(--font-sm);color:var(--text-muted);display:flex;align-items:center;gap:6px}.tb-pager .pager-arrow{cursor:pointer;padding:4px 6px;border-radius:4px}.tb-pager .pager-arrow:hover{background:#f0f0f0}.g-center{flex:40%;border-right:1px solid var(--divider);display:flex;flex-direction:column}.g-center-header{padding:12px 16px;border-bottom:1px solid var(--border-light);display:flex;justify-content:space-between;align-items:center;background:var(--bg-card)}.g-center-body{flex:1;overflow-y:auto;padding:14px 16px}.g-center-footer{padding:10px 16px;border-top:1px solid var(--divider);background:var(--bg-card);display:flex;justify-content:flex-end;gap:10px}.catalog-section{background:#fff;border:1px solid var(--border-light);border-radius:8px;margin-bottom:16px;overflow:hidden}.catalog-header{background:#f8fbff;border-bottom:1px solid #eef2ff;border-left:3px solid var(--brand-primary);padding:12px 16px;display:flex;justify-content:space-between;align-items:center;gap:12px}.catalog-title{font-size:15px;font-weight:500;color:#333}.catalog-actions{display:flex;align-items:center;gap:8px}.question-group{margin-bottom:18px}.question-group-title{font-size:var(--font-md);font-weight:var(--fw-semibold);color:var(--text-primary);margin-bottom:10px;padding-bottom:6px;border-bottom:1px solid var(--border-light)}.q-big-card{background:#fff;border:1px solid var(--border);border-radius:10px;margin-bottom:12px;overflow:hidden}.q-big-header{display:flex;justify-content:space-between;align-items:flex-start;gap:12px;padding:12px 14px;background:#f7f8fa;border-bottom:1px solid var(--border-light)}.q-big-title{font-size:var(--font-sm);font-weight:var(--fw-bold);color:var(--text-primary);line-height:1.7}.q-big-actions{display:flex;align-items:center;gap:8px;flex-wrap:wrap}.q-big-body{padding:12px}.q-sub-stem{font-size:var(--font-sm);color:var(--text-primary);line-height:1.7;padding:8px 10px;background:#f8fafc;border-radius:8px;margin-bottom:12px}.q-article{background:#fefce8;border-left:3px solid var(--brand-primary);border-radius:0 6px 6px 0;padding:10px 14px;margin:8px 0 16px;font-size:var(--font-sm);color:var(--text-primary);line-height:1.9}.expandable-block{min-width:0}.expandable-block.header-block{flex:1}.expandable-block.is-collapsed [data-expandable-content]{display:-webkit-box;-webkit-box-orient:vertical;-webkit-line-clamp:2;overflow:hidden}.expandable-toggle{display:none;margin-top:4px;padding:0;border:none;background:none;color:var(--brand-primary);font-size:12px;line-height:1.2;cursor:pointer}.expandable-toggle:hover{color:#1d4ed8}.expandable-block.is-overflowing .expandable-toggle{display:inline-flex;align-items:center}.student-answer-block{display:flex;justify-content:flex-start;margin-bottom:12px}.student-revision{display:inline-flex;align-items:center;padding:4px 10px;border-radius:999px;border:1px solid #bfdbfe;background:#eff6ff;color:#1e40af;font-size:12px}.grading-item{border:1px solid var(--border-light);border-radius:10px;background:#fff;padding:12px;margin-bottom:12px;transition:all .25s}.grading-item:last-child{margin-bottom:0}.grading-item.is-highlighted{border-color:#60a5fa;background:#f8fbff;box-shadow:0 0 0 3px #3b82f62e}.grading-item-header{display:flex;justify-content:space-between;align-items:flex-start;gap:12px;flex-wrap:wrap}.grading-item-label{font-size:13px;font-weight:var(--fw-semibold);color:var(--text-secondary)}.grading-item-actions{display:flex;align-items:center;gap:8px;flex-wrap:wrap}.grading-item-body{margin-top:10px}.question-action-btn{border:1px solid var(--brand-primary);background:#fff;color:var(--brand-primary);border-radius:16px;padding:4px 12px;font-size:12px;cursor:pointer;transition:all .2s}.question-action-btn:hover{background:var(--brand-primary-light)}.ghost-action-btn{border:1px solid #bfdbfe;background:#eef6ff;color:#2563eb;border-radius:16px;padding:4px 12px;font-size:12px;cursor:pointer;transition:all .2s}.ghost-action-btn:hover{background:#dbeafe}.ai-restore-btn{border:1px solid #d1d5db;border-radius:16px;padding:4px 12px;font-size:12px;cursor:pointer;transition:all .2s}.ai-restore-btn.is-ai{background:#eef6ff;color:#2563eb;border-color:#93c5fd}.ai-restore-btn.is-teacher{background:#f3f4f6;color:#6b7280;border-color:#d1d5db}.mode-switch{display:inline-flex;border:1px solid var(--brand-primary);border-radius:6px;overflow:hidden}.mode-btn{background:#fff;border:none;font-size:11px;padding:5px 10px;color:var(--brand-primary);cursor:pointer;transition:all .2s}.mode-btn:hover{background:var(--brand-primary-light)}.mode-btn.active{background:var(--brand-primary);color:#fff;font-weight:var(--fw-medium)}.mode-btn+.mode-btn{border-left:1px solid var(--brand-primary)}.param-judge,.param-score{display:none}.param-judge.is-visible,.param-score.is-visible{display:block}.judge-row,.score-row{display:flex;align-items:center;gap:8px;flex-wrap:wrap}.judge-label,.score-label{font-size:var(--font-sm);color:var(--text-secondary)}.judge-group{display:flex;gap:8px}.judge-btn{width:34px;height:34px;border-radius:8px;border:1px solid var(--border);background:#fff;color:var(--text-secondary);cursor:pointer;font-size:15px;font-weight:var(--fw-semibold);transition:all .2s}.judge-btn:hover{border-color:#9ca3af}.judge-btn.is-active.source-ai{background:#2563eb;color:#fff;border-color:#2563eb;box-shadow:0 8px 18px #2563eb2e}.judge-btn.is-active.source-teacher{background:#16a34a;color:#fff;border-color:#16a34a;box-shadow:0 8px 18px #16a34a2e}.score-stepper{display:inline-flex;align-items:center;border:1px solid var(--border);border-radius:10px;overflow:hidden;background:#fff}.score-stepper.source-ai{border-color:#93c5fd;box-shadow:0 0 0 1px #3b82f61f}.score-stepper.source-teacher{border-color:#86efac;box-shadow:0 0 0 1px #16a34a1f}.score-step-btn{width:30px;height:34px;border:none;background:#f8fafc;color:var(--text-secondary);cursor:pointer;font-size:16px}.score-step-btn:hover{background:#eef2f7}.score-input{width:58px;height:34px;border:none;outline:none;text-align:center;font-size:14px;background:transparent}.score-hint{font-size:var(--font-xs);color:var(--text-muted)}.answer-panel{background:#eff6ff;border:1px solid #dbeafe;border-radius:8px;padding:10px 12px;margin-top:12px;font-size:var(--font-sm);color:var(--text-secondary);line-height:1.8}.answer-section strong{color:#1d4ed8}.g-right{width:200px;flex-shrink:0;display:flex;flex-direction:column;background:var(--bg-card)}.g-right-header{padding:10px 12px;border-bottom:1px solid var(--border-light)}.class-select{width:100%;padding:6px 28px 6px 10px;border:1px solid var(--border);border-radius:6px;font-size:var(--font-sm);background:#fff url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3e%3cpath fill='%23999' d='M3 5l3 3 3-3'/%3e%3c/svg%3e") no-repeat right 8px center;appearance:none;cursor:pointer}.btn-all-correct{width:100%;margin-top:8px;padding:6px 0;background:var(--brand-primary-light);color:var(--brand-primary);border:1px solid var(--brand-primary);border-radius:6px;font-size:var(--font-sm);font-weight:var(--fw-semibold);cursor:pointer;text-align:center}.btn-all-correct:hover{background:#d4e5ff}.sl-tabs{display:flex;border-bottom:1px solid var(--border-light)}.sl-tab{flex:1;padding:10px 0;text-align:center;font-size:var(--font-sm);cursor:pointer;color:var(--text-muted);border-bottom:2px solid transparent}.sl-tab.active{color:var(--brand-primary);border-bottom-color:var(--brand-primary);font-weight:var(--fw-semibold)}.sl-list{flex:1;overflow-y:auto}.sl-item{padding:8px 12px;font-size:var(--font-base);cursor:pointer;display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid #f8f8f8}.sl-item:hover{background:#f8f9fc}.sl-item.active{background:var(--brand-primary-light)}.sl-item .sl-name{display:flex;align-items:center;gap:6px}.sl-item .sl-num{font-size:var(--font-xs);color:var(--text-muted)}.textbook-page.drawing-mode{cursor:crosshair}.textbook-page.search-mode{cursor:cell}.zoom-modal{position:fixed;inset:0;background:#000000d9;z-index:2000;display:none;align-items:center;justify-content:center;flex-direction:column}.zoom-close{position:absolute;top:20px;right:30px;color:#fff;font-size:30px;cursor:pointer}@keyframes highlightPulse{0%{box-shadow:0 0 #3b82f642}70%{box-shadow:0 0 0 12px #3b82f600}to{box-shadow:0 0 #3b82f600}}.pulse-once{animation:highlightPulse 1s ease-out}.q-big-card.is-highlighted{border-color:#60a5fa;background:#f8fbff;box-shadow:0 0 0 3px #3b82f62e}.question-bounding-box{position:relative;padding:12px;margin-bottom:12px;border:2px solid transparent;border-radius:8px;transition:all .2s;cursor:pointer}.question-bounding-box:hover{border-color:var(--brand-primary);background:#3b82f60a}.question-bounding-box.active-link{border-color:var(--brand-primary);background:#eef4ff;box-shadow:0 0 0 3px #3b82f62e}.question-score-tag{position:absolute;right:16px;top:50%;transform:translateY(-50%);font-size:18px;font-weight:var(--fw-bold);display:none}.question-score-tag.show{display:flex;align-items:center;gap:4px}.score-text-correct{color:var(--success)}.score-text-wrong{color:var(--danger)}.score-text-half{color:var(--warning)}