.feedback-card{margin-top:10px;padding:12px 16px;border-radius:12px;background:var(--color-surface);border:1px solid var(--color-border);border-left-width:4px;box-shadow:var(--shadow);line-height:1.6}.feedback-body{display:flex;flex-direction:column;align-items:flex-start;gap:6px}.feedback-head{display:flex;align-items:center;gap:6px;font-weight:700;font-size:.95rem}.feedback-icon{font-size:1rem;line-height:1}.feedback-message{color:var(--color-text);font-size:.95rem;white-space:pre-wrap}.feedback-retry-btn{margin-top:4px;padding:8px 20px;border-radius:20px;font-size:.95rem;font-weight:700;color:#fff;background:var(--color-warning);transition:opacity .15s,transform .05s}.feedback-retry-btn:hover{opacity:.9}.feedback-retry-btn:active{transform:translateY(1px)}.feedback-encourage{border-left-color:var(--color-success);background:#ecfdf5}.feedback-encourage .feedback-title{color:#047857}.feedback-gentle{border-left-color:var(--color-primary);background:#eff6ff}.feedback-gentle .feedback-title{color:var(--color-primary-dark)}.feedback-retry{border-left-color:var(--color-warning);background:#fffbeb}.feedback-retry .feedback-title{color:#b45309}.status-pill{display:inline-flex;align-items:center;gap:4px;padding:2px 10px;border-radius:999px;font-size:.78rem;font-weight:600;line-height:1.6;white-space:nowrap}.status-pill-high{background:#ecfdf5;color:#047857}.status-pill-good{background:#eff6ff;color:#1d4ed8}.status-pill-low{background:#fffbeb;color:#b45309}.status-pill-watch{background:#fef2f2;color:#b91c1c}:root{--color-bg: #f8fafc;--color-surface: #ffffff;--color-border: #e2e8f0;--color-text: #1e293b;--color-text-muted: #64748b;--color-primary: #3b82f6;--color-primary-light: #dbeafe;--color-primary-dark: #2563eb;--color-success: #10b981;--color-warning: #f59e0b;--color-danger: #ef4444;--color-l1: #ef4444;--color-l2: #f59e0b;--color-l3: #3b82f6;--color-l4: #10b981;--sidebar-width: 260px;--radius: 10px;--shadow: 0 1px 3px rgba(0,0,0,.06), 0 1px 2px rgba(0,0,0,.04);--shadow-lg: 0 4px 12px rgba(0,0,0,.08)}*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}html{font-size:15px}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,PingFang SC,Hiragino Sans GB,Microsoft YaHei,sans-serif;background:var(--color-bg);color:var(--color-text);line-height:1.6;-webkit-font-smoothing:antialiased}a{color:var(--color-primary);text-decoration:none}a:hover{text-decoration:underline}button{cursor:pointer;font-family:inherit;font-size:inherit;border:none;outline:none}input,textarea,select{font-family:inherit;font-size:inherit;border:1px solid var(--color-border);border-radius:var(--radius);padding:10px 14px;outline:none;background:var(--color-surface);color:var(--color-text);transition:border-color .2s}input:focus,textarea:focus,select:focus{border-color:var(--color-primary);box-shadow:0 0 0 3px var(--color-primary-light)}.app-layout{display:flex;min-height:100vh}.sidebar{width:var(--sidebar-width);background:var(--color-surface);border-right:1px solid var(--color-border);padding:24px 0;display:flex;flex-direction:column;position:fixed;top:0;left:0;bottom:0;overflow-y:auto;z-index:10}.main-content{margin-left:var(--sidebar-width);flex:1;padding:32px 40px;max-width:960px;width:100%}.sidebar-logo{padding:0 20px 20px;font-size:1.25rem;font-weight:700;color:var(--color-primary-dark);border-bottom:1px solid var(--color-border);margin-bottom:16px}.sidebar-nav{flex:1}.sidebar-nav a{display:flex;align-items:center;gap:10px;padding:10px 20px;margin:2px 8px;border-radius:8px;color:var(--color-text-muted);font-size:.95rem;transition:all .15s;text-decoration:none}.sidebar-nav a:hover{background:var(--color-primary-light);color:var(--color-primary-dark)}.sidebar-nav a.active{background:var(--color-primary-light);color:var(--color-primary-dark);font-weight:600}.sidebar-nav a .step-num{width:24px;height:24px;border-radius:50%;background:var(--color-border);display:flex;align-items:center;justify-content:center;font-size:.75rem;font-weight:700;flex-shrink:0}.sidebar-nav a.active .step-num,.sidebar-nav a.done .step-num{background:var(--color-primary);color:#fff}.sidebar-student{padding:16px 20px;border-top:1px solid var(--color-border);font-size:.85rem;color:var(--color-text-muted)}.card{background:var(--color-surface);border-radius:var(--radius);padding:24px;box-shadow:var(--shadow);margin-bottom:20px}.card-title{font-size:1.1rem;font-weight:700;margin-bottom:12px;color:var(--color-text)}.btn{display:inline-flex;align-items:center;gap:6px;padding:10px 20px;border-radius:var(--radius);font-weight:600;font-size:.95rem;transition:all .15s}.btn-primary{background:var(--color-primary);color:#fff}.btn-primary:hover{background:var(--color-primary-dark)}.btn-secondary{background:var(--color-bg);color:var(--color-text);border:1px solid var(--color-border)}.btn-secondary:hover{background:var(--color-border)}.btn-success{background:var(--color-success);color:#fff}.btn-danger{background:var(--color-danger);color:#fff}.btn-lg{padding:14px 28px;font-size:1.05rem}.btn:disabled{opacity:.5;cursor:not-allowed}.review-due-card{border-left:4px solid var(--color-primary)}.review-due-title{font-size:1.05rem;font-weight:700;color:var(--color-text);margin-bottom:6px}.review-due-item{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:12px 0;border-top:1px solid var(--color-border)}.review-due-item:first-of-type{border-top:none}.review-due-kp{font-weight:600;color:var(--color-text)}.review-due-meta{font-size:.82rem;color:var(--color-text-muted);margin-top:2px}.wizard-steps{display:flex;gap:0;margin-bottom:32px}.wizard-step{flex:1;text-align:center;padding:12px 8px;border-bottom:3px solid var(--color-border);color:var(--color-text-muted);font-size:.85rem;transition:all .2s}.wizard-step.active{border-color:var(--color-primary);color:var(--color-primary-dark);font-weight:600}.wizard-step.done{border-color:var(--color-success);color:var(--color-success)}.wizard-step .step-dot{display:inline-block;width:8px;height:8px;border-radius:50%;background:var(--color-border);margin-right:6px}.wizard-step.active .step-dot{background:var(--color-primary)}.wizard-step.done .step-dot{background:var(--color-success)}.form-group{margin-bottom:20px}.form-label{display:block;font-weight:600;margin-bottom:6px;font-size:.95rem;color:var(--color-text)}.form-hint{font-size:.82rem;color:var(--color-text-muted);margin-top:4px}.form-input{width:100%}.kpi-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(180px,1fr));gap:16px;margin-bottom:24px}.kpi-card{background:var(--color-surface);border-radius:var(--radius);padding:20px;box-shadow:var(--shadow);text-align:center}.kpi-card .kpi-value{font-size:2rem;font-weight:800;line-height:1.2}.kpi-card .kpi-label{font-size:.85rem;color:var(--color-text-muted);margin-top:4px}.matrix-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(140px,1fr));gap:10px}.matrix-cell{padding:14px 10px;border-radius:var(--radius);text-align:center;font-weight:600;font-size:.88rem;box-shadow:var(--shadow)}.matrix-cell.l1{background:#fef2f2;color:var(--color-l1)}.matrix-cell.l2{background:#fffbeb;color:var(--color-l2)}.matrix-cell.l3{background:var(--color-primary-light);color:var(--color-l3)}.matrix-cell.l4{background:#ecfdf5;color:var(--color-l4)}.matrix-cell.empty{background:var(--color-bg);color:var(--color-text-muted)}.report-block{white-space:pre-wrap;font-size:.9rem;line-height:1.8;padding:16px;background:var(--color-bg);border-radius:var(--radius);margin-bottom:12px}.session-row{display:flex;align-items:center;gap:12px;padding:12px 16px;border-radius:var(--radius);background:var(--color-bg);margin-bottom:8px}.session-row .session-badge{padding:2px 8px;border-radius:20px;font-size:.78rem;font-weight:600}.session-row .session-badge.active{background:var(--color-primary-light);color:var(--color-primary-dark)}.session-row .session-badge.completed{background:#ecfdf5;color:var(--color-success)}.student-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(240px,1fr));gap:16px}.student-card{background:var(--color-surface);border-radius:var(--radius);padding:24px;box-shadow:var(--shadow);cursor:pointer;transition:all .15s;border:2px solid transparent}.student-card:hover{border-color:var(--color-primary);box-shadow:var(--shadow-lg)}.student-card.selected{border-color:var(--color-primary);background:var(--color-primary-light)}.student-card .student-name{font-size:1.15rem;font-weight:700}.student-card .student-grade{color:var(--color-text-muted);font-size:.9rem;margin-top:4px}.student-card .student-badge{display:inline-block;padding:2px 10px;border-radius:20px;font-size:.78rem;font-weight:600;margin-top:8px}.student-badge.ready{background:#ecfdf5;color:var(--color-success)}.student-badge.progress{background:var(--color-primary-light);color:var(--color-primary-dark)}.student-badge.pending{background:var(--color-bg);color:var(--color-text-muted)}.page-header{margin-bottom:28px}.page-header h1{font-size:1.5rem;font-weight:800}.page-header p{color:var(--color-text-muted);margin-top:4px;font-size:.92rem}.empty-state{text-align:center;padding:60px 20px;color:var(--color-text-muted)}.empty-state .empty-icon{font-size:3rem;margin-bottom:12px}.empty-state p{font-size:.95rem}.loading{text-align:center;padding:40px;color:var(--color-text-muted)}.message{padding:12px 18px;border-radius:var(--radius);margin-bottom:16px;font-size:.9rem;font-weight:500}.message.info{background:var(--color-primary-light);color:var(--color-primary-dark)}.message.success{background:#ecfdf5;color:var(--color-success)}.message.error{background:#fef2f2;color:var(--color-danger)}::-webkit-scrollbar{width:6px}::-webkit-scrollbar-track{background:transparent}::-webkit-scrollbar-thumb{background:var(--color-border);border-radius:3px}@media(max-width:768px){.sidebar{width:0;overflow:hidden}.main-content{margin-left:0;padding:20px}.student-grid{grid-template-columns:1fr}}.tutor-layout{display:flex;gap:20px;align-items:flex-start}.tutor-chat{flex:1;min-width:0}.tutor-progress{width:260px;flex-shrink:0;position:sticky;top:24px;background:var(--color-surface);border-radius:var(--radius);padding:18px;box-shadow:var(--shadow);font-size:.88rem}.progress-phase{margin:10px 0 14px;color:var(--color-text-muted)}.progress-phase strong{color:var(--color-primary-dark)}.progress-empty{color:var(--color-text-muted);font-size:.85rem;padding:8px 0}.progress-item{padding:10px 12px;border-radius:8px;background:var(--color-bg);margin-bottom:8px;display:flex;align-items:center;gap:8px;flex-wrap:wrap}.progress-knowledge{font-weight:600;flex:1;min-width:80px}.progress-error{width:100%;font-size:.78rem;color:var(--color-danger)}.progress-note{margin-top:10px;font-size:.76rem;color:var(--color-text-muted);line-height:1.6}.chat-bubble{max-width:88%;margin-bottom:14px;padding:12px 16px;border-radius:14px;line-height:1.7}.chat-bubble.child{margin-left:auto;background:var(--color-primary);color:#fff;border-bottom-right-radius:4px}.chat-bubble.agent{background:var(--color-surface);box-shadow:var(--shadow);border-bottom-left-radius:4px}.chat-bubble.agent.thinking{color:var(--color-text-muted);font-style:italic}.chat-bubble.agent.streaming{white-space:pre-wrap;word-break:break-word}.typing-caret{display:inline-block;width:7px;height:1.05em;margin-left:2px;vertical-align:text-bottom;background:var(--color-primary);animation:typing-blink 1s steps(2,start) infinite}@keyframes typing-blink{0%,50%{opacity:1}50.01%,to{opacity:0}}.chat-action-tag{display:inline-block;font-size:.72rem;font-weight:700;color:var(--color-primary-dark);background:var(--color-primary-light);padding:1px 8px;border-radius:10px;margin-bottom:6px}.chat-content{white-space:pre-wrap}.quiz-card{margin-top:10px;padding:12px;background:var(--color-bg);border-radius:10px}.quiz-q{font-weight:600;margin-bottom:10px}.quiz-options{display:flex;flex-direction:column;gap:8px}.quiz-option{text-align:left;padding:10px 14px;border-radius:8px;background:var(--color-surface);border:1px solid var(--color-border);color:var(--color-text);transition:all .15s}.prompt-tutor{display:flex;flex-direction:column;height:calc(100vh - 80px)}.prompt-tutor .tutor-header{display:flex;align-items:center;justify-content:space-between;gap:12px;flex-wrap:wrap;margin-bottom:14px}.prompt-tutor .tutor-header h2{font-size:1.15rem;margin:0}.prompt-setup{display:flex;align-items:center;gap:10px;flex-wrap:wrap}.mode-switch{display:inline-flex;border:1px solid var(--color-border);border-radius:10px;overflow:hidden}.mode-switch button{border:none;background:var(--color-surface);padding:8px 14px;cursor:pointer;color:var(--color-text-muted);font-size:.9rem}.mode-switch button.active{background:var(--color-primary);color:#fff}.kp-input{padding:9px 14px;border-radius:10px;border:1px solid var(--color-border);background:var(--color-bg);color:var(--color-text);min-width:240px}.kp-select-wrap{flex:1;min-width:220px}.kp-select-wrap .form-input,.kp-select-wrap select{min-width:200px;max-width:100%}.tutor-error{background:var(--color-danger-light, #fde8e8);color:var(--color-danger);padding:10px 14px;border-radius:10px;margin-bottom:12px;font-size:.88rem}.chat-scroll{flex:1;overflow-y:auto;padding:18px 8px;display:flex;flex-direction:column}.chat-input-bar{display:flex;gap:10px;padding-top:14px;border-top:1px solid var(--color-border)}.chat-input-bar input{flex:1;padding:12px 16px;border-radius:12px;border:1px solid var(--color-border);background:var(--color-bg);color:var(--color-text);font-size:.95rem}.prompt-actions{display:flex;align-items:center;gap:10px}.btn-accent{background:var(--color-primary);color:#fff;border:none;padding:8px 18px;border-radius:10px;cursor:pointer;font-weight:600;font-size:.9rem}.btn-accent:hover{opacity:.88}.btn-accent:disabled{opacity:.45;cursor:not-allowed}.btn-small{padding:5px 12px;font-size:.82rem;border-radius:8px}.diag-summary-panel{margin-top:16px;padding:18px;border-radius:14px;background:linear-gradient(135deg,#f0f9ff,#eef2ff);border:1px solid #bfdbfe}.diag-summary-header{display:flex;align-items:center;gap:10px;margin-bottom:14px;flex-wrap:wrap}.diag-summary-icon{font-size:1.3rem}.diag-summary-header>span:nth-child(2){font-weight:700;font-size:1rem;color:var(--color-text)}.level-badge{display:inline-block;padding:3px 10px;border-radius:20px;font-size:.8rem;font-weight:700;letter-spacing:.5px}.level-l1{background:#fef3c7;color:#92400e}.level-l2{background:#fed7aa;color:#9a3412}.level-l3{background:#bbf7d0;color:#166534}.level-l4{background:#86efac;color:#14532d}.level-unknown{background:#e5e7eb;color:#374151}.diag-confidence{font-size:.82rem;color:var(--color-text-muted);background:#fff;padding:2px 8px;border-radius:10px}.diag-summary-body{display:flex;flex-direction:column;gap:12px}.diag-section{background:#fff;border-radius:10px;padding:12px 14px}.diag-section-title{font-weight:700;font-size:.88rem;color:#4b5563;margin-bottom:6px}.diag-section-content{font-size:.9rem;line-height:1.65;color:#374151;white-space:pre-wrap}.diag-error-list{margin:0;padding-left:18px;font-size:.87rem;color:#dc2626}.diag-error-list li{margin-bottom:4px}.diag-course-prompt{border:2px dashed #93c5fd;background:#eff6ff}.course-prompt-textarea{width:100%;min-height:100px;padding:10px 12px;border:1px solid #dbeafe;border-radius:8px;background:#fff;font-size:.87rem;line-height:1.6;resize:vertical;font-family:inherit;color:#1e40af}.course-prompt-textarea:focus{outline:2px solid #60a5fa;outline-offset:0}.diag-hint{font-size:.78rem;color:#94a3b8;text-align:right;margin-top:4px}.diag-summary-error{margin-top:12px;padding:10px 14px;border-radius:10px;background:#fef2f2;border:1px solid #fecaca;color:#dc2626;font-size:.87rem;display:flex;align-items:center;justify-content:space-between;gap:10px}.btn-ghost{background:transparent;border:1px solid var(--color-border);color:var(--color-text-muted);padding:8px 14px;border-radius:10px;cursor:pointer}.quiz-option:hover:not(:disabled){border-color:var(--color-primary);background:var(--color-primary-light)}.quiz-option.chosen{border-color:var(--color-primary);background:var(--color-primary-light);opacity:.85}.quiz-hint{margin-top:8px;font-size:.8rem;color:var(--color-text-muted)}.judge-banner{margin-top:10px;display:flex;align-items:center;gap:10px;flex-wrap:wrap}.judge-evidence{font-size:.82rem;color:var(--color-text-muted)}.close-banner{margin-top:10px;color:var(--color-success);font-weight:600}.tutor-input{display:flex;flex-direction:column;gap:8px;margin-top:18px}.tutor-input .form-input{flex:1}.formula-bar{display:flex;align-items:center;gap:8px;flex-wrap:wrap}.formula-bar-label{font-size:.8rem;color:var(--color-text-muted);font-weight:600;white-space:nowrap}.formula-bar-chips{display:flex;gap:4px;flex-wrap:wrap}.formula-chip{min-width:30px;height:30px;padding:0 6px;border:1px solid var(--color-border, #ddd);border-radius:6px;background:#f7f8fa;cursor:pointer;font-size:.95rem;line-height:1;transition:background .15s,border-color .15s}.diag-card{border:1px solid var(--color-border, #e5e7eb);border-radius:12px;padding:14px 16px;margin:6px 0 4px;background:var(--color-bg, #fff)}.diag-head{display:flex;align-items:center;gap:12px;flex-wrap:wrap}.diag-summary{font-weight:600;line-height:1.5}.diag-block{margin-top:10px}.diag-title{font-size:.85rem;font-weight:600;color:var(--color-text-muted);margin-bottom:4px}.diag-block ul{margin:0;padding-left:18px}.diag-block li{margin:2px 0;line-height:1.5}.diag-note{margin-top:12px;font-size:.82rem;color:var(--color-text-muted);line-height:1.6;border-top:1px dashed var(--color-border, #e5e7eb);padding-top:10px}.diag-done{margin-top:12px;display:flex;flex-direction:column;gap:6px}.diag-progress{font-size:.85rem;font-weight:600;color:var(--color-primary-dark, #4f46e5);background:var(--color-primary-light, #eef2ff);border-radius:8px;padding:8px 12px;margin-bottom:12px}.diag-q-done{font-size:.8rem;color:var(--color-text-muted, #6b7280);background:var(--color-bg, #f7f8fa);border-radius:8px;padding:6px 12px;margin-bottom:10px}.quiz-fill-hint{font-size:.82rem;color:var(--color-text-muted, #6b7280);background:var(--color-bg, #f7f8fa);border-radius:8px;padding:8px 10px;margin-bottom:4px;line-height:1.5}.gen-course-panel{margin-top:16px;padding:16px;border-radius:12px;background:var(--color-surface, #fff);box-shadow:var(--shadow);border:1px solid var(--color-primary-light, #c7d2fe)}.gen-course-title{font-weight:700;color:var(--color-primary-dark, #4f46e5);margin-bottom:10px}.gen-course-loading{font-size:.88rem;color:var(--color-text-muted, #6b7280);padding:8px 0}.formula-panel{border:1px solid var(--color-border, #e5e7eb);border-radius:12px;background:var(--color-surface, #fff);padding:10px 12px;box-shadow:var(--shadow)}.formula-panel-head{display:flex;align-items:center;gap:10px;flex-wrap:wrap;margin-bottom:8px}.formula-panel-title{font-weight:700;font-size:.9rem}.formula-panel-hint{font-size:.74rem;color:var(--color-text-muted, #6b7280);flex:1;min-width:140px;line-height:1.4}.formula-panel-close{border:1px solid var(--color-border, #e5e7eb);background:var(--color-bg, #f7f8fa);border-radius:6px;padding:2px 8px;font-size:.78rem;cursor:pointer;color:var(--color-text-muted, #6b7280)}.formula-panel-close:hover{background:#eef2ff;border-color:#9db4ff}.formula-panel-groups{display:flex;flex-direction:column;gap:8px;max-height:280px;overflow-y:auto}.formula-group-name{font-size:.72rem;color:var(--color-text-muted, #6b7280);margin-bottom:4px;font-weight:600}.formula-group-chips{display:flex;gap:4px;flex-wrap:wrap}.formula-chip{min-width:32px;height:32px;padding:0 7px;border:1px solid var(--color-border, #ddd);border-radius:6px;background:#f7f8fa;cursor:pointer;font-size:1rem;line-height:1;transition:background .15s,border-color .15s}.formula-chip:hover{background:#eef2ff;border-color:#9db4ff}.formula-chip:active{background:#dde6ff}.page-container{max-width:1080px;margin:0 auto;padding:24px 20px 48px}.table{width:100%;border-collapse:collapse;margin:12px 0 24px}.table th,.table td{border:1px solid var(--color-border, #e5e7eb);padding:8px 10px;text-align:left;font-size:.9rem;vertical-align:top}.table th{background:var(--color-bg, #f7f8fa);font-weight:600;white-space:nowrap}.status-badge{display:inline-block;padding:3px 10px;border-radius:999px;font-size:.8rem;font-weight:600;white-space:nowrap}.status-alert{background:#fde8e8;color:#b91c1c}.status-active{background:#e8f1fd;color:#1d4ed8}.status-ok{background:#e6f7ec;color:#15803d}.status-muted{background:#f1f2f4;color:#6b7280}.muted-text{color:var(--color-text-muted, #6b7280);font-size:.85rem}.message.warn{background:#fffbeb;border:1px solid #fcd34d;color:#92400e}.message.warn strong{color:#92400e}.parent-banner{padding:12px 16px;border-radius:var(--radius);background:#eff6ff;border:1px solid #bfdbfe;color:#1e40af;font-size:.88rem;margin-bottom:20px}.parent-summary{display:grid;grid-template-columns:repeat(auto-fit,minmax(160px,1fr));gap:12px}.parent-summary-item{background:var(--color-bg);border-radius:var(--radius);padding:12px 14px}.parent-summary-label{font-size:.78rem;color:var(--color-text-muted);margin-bottom:4px}.parent-summary-value{font-weight:600;font-size:.95rem;color:var(--color-text)}.parent-class-row{display:flex;align-items:center;gap:12px;padding:12px 16px;border-radius:var(--radius);background:var(--color-bg);margin-bottom:8px}.parent-class-badge{padding:2px 8px;border-radius:20px;font-size:.78rem;font-weight:600;background:#ecfdf5;color:var(--color-success);white-space:nowrap}.parent-class-main{flex:1;min-width:0}.parent-class-title{font-weight:600}.parent-class-meta{font-size:.8rem;color:var(--color-text-muted)}.parent-kp-grid{display:flex;flex-wrap:wrap;gap:8px}.parent-kp-chip{display:inline-flex;align-items:center;gap:8px;padding:8px 12px;border-radius:999px;font-weight:600;font-size:.85rem}.parent-kp-chip.l1{background:#fef2f2;color:var(--color-l1)}.parent-kp-chip.l2{background:#fffbeb;color:var(--color-l2)}.parent-kp-chip.l3{background:var(--color-primary-light);color:var(--color-l3)}.parent-kp-chip.l4{background:#ecfdf5;color:var(--color-l4)}.parent-kp-level{font-size:.7rem;font-weight:700;opacity:.85}.parent-feedback-item{margin-bottom:8px}.parent-feedback-title{font-weight:600;margin:12px 0 6px;color:var(--color-primary-dark)}.evd-section{border-top:1px dashed var(--color-border);margin-top:14px;padding-top:14px;margin-bottom:14px}.evd-section:first-child{border-top:none;margin-top:0;padding-top:0}.evd-section-title{font-weight:700;font-size:.95rem;margin-bottom:10px;color:var(--color-text)}.child-hero{display:flex;align-items:center;gap:16px;background:linear-gradient(135deg,#ecfdf5,#eff6ff);border:1px solid #d1fae5;border-radius:16px;padding:24px;margin-bottom:20px;box-shadow:var(--shadow)}.child-hero-emoji{font-size:2.6rem;line-height:1;flex-shrink:0}.child-hero-text{flex:1;min-width:0}.child-hero-title{font-size:1.15rem;font-weight:800;color:#047857;margin-bottom:8px}.child-hero-copy{font-size:.98rem;line-height:1.8;color:var(--color-text)}.child-done-list{margin:0;padding-left:20px}.child-done-list li{margin:4px 0;line-height:1.7;font-size:.98rem}.child-next-copy{font-size:.95rem;line-height:1.8;color:var(--color-text)}.child-next-chips{display:flex;flex-wrap:wrap;gap:8px;margin-top:8px}.child-next-chip{display:inline-flex;align-items:center;padding:6px 14px;border-radius:999px;background:var(--color-primary-light);color:var(--color-primary-dark);font-weight:600;font-size:.88rem}@font-face{font-family:KaTeX_AMS;font-style:normal;font-weight:400;src:url(/assets/KaTeX_AMS-Regular-BQhdFMY1.woff2) format("woff2"),url(/assets/KaTeX_AMS-Regular-DMm9YOAa.woff) format("woff"),url(/assets/KaTeX_AMS-Regular-DRggAlZN.ttf) format("truetype")}@font-face{font-family:KaTeX_Caligraphic;font-style:normal;font-weight:700;src:url(/assets/KaTeX_Caligraphic-Bold-Dq_IR9rO.woff2) format("woff2"),url(/assets/KaTeX_Caligraphic-Bold-BEiXGLvX.woff) format("woff"),url(/assets/KaTeX_Caligraphic-Bold-ATXxdsX0.ttf) format("truetype")}@font-face{font-family:KaTeX_Caligraphic;font-style:normal;font-weight:400;src:url(/assets/KaTeX_Caligraphic-Regular-Di6jR-x-.woff2) format("woff2"),url(/assets/KaTeX_Caligraphic-Regular-CTRA-rTL.woff) format("woff"),url(/assets/KaTeX_Caligraphic-Regular-wX97UBjC.ttf) format("truetype")}@font-face{font-family:KaTeX_Fraktur;font-style:normal;font-weight:700;src:url(/assets/KaTeX_Fraktur-Bold-CL6g_b3V.woff2) format("woff2"),url(/assets/KaTeX_Fraktur-Bold-BsDP51OF.woff) format("woff"),url(/assets/KaTeX_Fraktur-Bold-BdnERNNW.ttf) format("truetype")}@font-face{font-family:KaTeX_Fraktur;font-style:normal;font-weight:400;src:url(/assets/KaTeX_Fraktur-Regular-CTYiF6lA.woff2) format("woff2"),url(/assets/KaTeX_Fraktur-Regular-Dxdc4cR9.woff) format("woff"),url(/assets/KaTeX_Fraktur-Regular-CB_wures.ttf) format("truetype")}@font-face{font-family:KaTeX_Main;font-style:normal;font-weight:700;src:url(/assets/KaTeX_Main-Bold-Cx986IdX.woff2) format("woff2"),url(/assets/KaTeX_Main-Bold-Jm3AIy58.woff) format("woff"),url(/assets/KaTeX_Main-Bold-waoOVXN0.ttf) format("truetype")}@font-face{font-family:KaTeX_Main;font-style:italic;font-weight:700;src:url(/assets/KaTeX_Main-BoldItalic-DxDJ3AOS.woff2) format("woff2"),url(/assets/KaTeX_Main-BoldItalic-SpSLRI95.woff) format("woff"),url(/assets/KaTeX_Main-BoldItalic-DzxPMmG6.ttf) format("truetype")}@font-face{font-family:KaTeX_Main;font-style:italic;font-weight:400;src:url(/assets/KaTeX_Main-Italic-NWA7e6Wa.woff2) format("woff2"),url(/assets/KaTeX_Main-Italic-BMLOBm91.woff) format("woff"),url(/assets/KaTeX_Main-Italic-3WenGoN9.ttf) format("truetype")}@font-face{font-family:KaTeX_Main;font-style:normal;font-weight:400;src:url(/assets/KaTeX_Main-Regular-B22Nviop.woff2) format("woff2"),url(/assets/KaTeX_Main-Regular-Dr94JaBh.woff) format("woff"),url(/assets/KaTeX_Main-Regular-ypZvNtVU.ttf) format("truetype")}@font-face{font-family:KaTeX_Math;font-style:italic;font-weight:700;src:url(/assets/KaTeX_Math-BoldItalic-CZnvNsCZ.woff2) format("woff2"),url(/assets/KaTeX_Math-BoldItalic-iY-2wyZ7.woff) format("woff"),url(/assets/KaTeX_Math-BoldItalic-B3XSjfu4.ttf) format("truetype")}@font-face{font-family:KaTeX_Math;font-style:italic;font-weight:400;src:url(/assets/KaTeX_Math-Italic-t53AETM-.woff2) format("woff2"),url(/assets/KaTeX_Math-Italic-DA0__PXp.woff) format("woff"),url(/assets/KaTeX_Math-Italic-flOr_0UB.ttf) format("truetype")}@font-face{font-family:KaTeX_SansSerif;font-style:normal;font-weight:700;src:url(/assets/KaTeX_SansSerif-Bold-D1sUS0GD.woff2) format("woff2"),url(/assets/KaTeX_SansSerif-Bold-DbIhKOiC.woff) format("woff"),url(/assets/KaTeX_SansSerif-Bold-CFMepnvq.ttf) format("truetype")}@font-face{font-family:KaTeX_SansSerif;font-style:italic;font-weight:400;src:url(/assets/KaTeX_SansSerif-Italic-C3H0VqGB.woff2) format("woff2"),url(/assets/KaTeX_SansSerif-Italic-DN2j7dab.woff) format("woff"),url(/assets/KaTeX_SansSerif-Italic-YYjJ1zSn.ttf) format("truetype")}@font-face{font-family:KaTeX_SansSerif;font-style:normal;font-weight:400;src:url(/assets/KaTeX_SansSerif-Regular-DDBCnlJ7.woff2) format("woff2"),url(/assets/KaTeX_SansSerif-Regular-CS6fqUqJ.woff) format("woff"),url(/assets/KaTeX_SansSerif-Regular-BNo7hRIc.ttf) format("truetype")}@font-face{font-family:KaTeX_Script;font-style:normal;font-weight:400;src:url(/assets/KaTeX_Script-Regular-D3wIWfF6.woff2) format("woff2"),url(/assets/KaTeX_Script-Regular-D5yQViql.woff) format("woff"),url(/assets/KaTeX_Script-Regular-C5JkGWo-.ttf) format("truetype")}@font-face{font-family:KaTeX_Size1;font-style:normal;font-weight:400;src:url(/assets/KaTeX_Size1-Regular-mCD8mA8B.woff2) format("woff2"),url(/assets/KaTeX_Size1-Regular-C195tn64.woff) format("woff"),url(/assets/KaTeX_Size1-Regular-Dbsnue_I.ttf) format("truetype")}@font-face{font-family:KaTeX_Size2;font-style:normal;font-weight:400;src:url(/assets/KaTeX_Size2-Regular-Dy4dx90m.woff2) format("woff2"),url(/assets/KaTeX_Size2-Regular-oD1tc_U0.woff) format("woff"),url(/assets/KaTeX_Size2-Regular-B7gKUWhC.ttf) format("truetype")}@font-face{font-family:KaTeX_Size3;font-style:normal;font-weight:400;src:url(data:font/woff2;base64,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) format("woff2"),url(/assets/KaTeX_Size3-Regular-CTq5MqoE.woff) format("woff"),url(/assets/KaTeX_Size3-Regular-DgpXs0kz.ttf) format("truetype")}@font-face{font-family:KaTeX_Size4;font-style:normal;font-weight:400;src:url(/assets/KaTeX_Size4-Regular-Dl5lxZxV.woff2) format("woff2"),url(/assets/KaTeX_Size4-Regular-BF-4gkZK.woff) format("woff"),url(/assets/KaTeX_Size4-Regular-DWFBv043.ttf) format("truetype")}@font-face{font-family:KaTeX_Typewriter;font-style:normal;font-weight:400;src:url(/assets/KaTeX_Typewriter-Regular-CO6r4hn1.woff2) format("woff2"),url(/assets/KaTeX_Typewriter-Regular-C0xS9mPB.woff) format("woff"),url(/assets/KaTeX_Typewriter-Regular-D3Ib7_Hf.ttf) format("truetype")}.katex{font: 1.21em KaTeX_Main,Times New Roman,serif;line-height:1.2;text-indent:0;text-rendering:auto}.katex *{-ms-high-contrast-adjust:none!important;border-color:currentColor}.katex .katex-version:after{content:"0.16.11"}.katex .katex-mathml{clip:rect(1px,1px,1px,1px);border:0;height:1px;overflow:hidden;padding:0;position:absolute;width:1px}.katex .katex-html>.newline{display:block}.katex .base{position:relative;white-space:nowrap;width:-webkit-min-content;width:-moz-min-content;width:min-content}.katex .base,.katex .strut{display:inline-block}.katex .textbf{font-weight:700}.katex .textit{font-style:italic}.katex .textrm{font-family:KaTeX_Main}.katex .textsf{font-family:KaTeX_SansSerif}.katex .texttt{font-family:KaTeX_Typewriter}.katex .mathnormal{font-family:KaTeX_Math;font-style:italic}.katex .mathit{font-family:KaTeX_Main;font-style:italic}.katex .mathrm{font-style:normal}.katex .mathbf{font-family:KaTeX_Main;font-weight:700}.katex .boldsymbol{font-family:KaTeX_Math;font-style:italic;font-weight:700}.katex .amsrm,.katex .mathbb,.katex .textbb{font-family:KaTeX_AMS}.katex .mathcal{font-family:KaTeX_Caligraphic}.katex .mathfrak,.katex .textfrak{font-family:KaTeX_Fraktur}.katex .mathboldfrak,.katex .textboldfrak{font-family:KaTeX_Fraktur;font-weight:700}.katex .mathtt{font-family:KaTeX_Typewriter}.katex .mathscr,.katex .textscr{font-family:KaTeX_Script}.katex .mathsf,.katex .textsf{font-family:KaTeX_SansSerif}.katex .mathboldsf,.katex .textboldsf{font-family:KaTeX_SansSerif;font-weight:700}.katex .mathitsf,.katex .textitsf{font-family:KaTeX_SansSerif;font-style:italic}.katex .mainrm{font-family:KaTeX_Main;font-style:normal}.katex .vlist-t{border-collapse:collapse;display:inline-table;table-layout:fixed}.katex .vlist-r{display:table-row}.katex .vlist{display:table-cell;position:relative;vertical-align:bottom}.katex .vlist>span{display:block;height:0;position:relative}.katex .vlist>span>span{display:inline-block}.katex .vlist>span>.pstrut{overflow:hidden;width:0}.katex .vlist-t2{margin-right:-2px}.katex .vlist-s{display:table-cell;font-size:1px;min-width:2px;vertical-align:bottom;width:2px}.katex .vbox{align-items:baseline;display:inline-flex;flex-direction:column}.katex .hbox{width:100%}.katex .hbox,.katex .thinbox{display:inline-flex;flex-direction:row}.katex .thinbox{max-width:0;width:0}.katex .msupsub{text-align:left}.katex .mfrac>span>span{text-align:center}.katex .mfrac .frac-line{border-bottom-style:solid;display:inline-block;width:100%}.katex .hdashline,.katex .hline,.katex .mfrac .frac-line,.katex .overline .overline-line,.katex .rule,.katex .underline .underline-line{min-height:1px}.katex .mspace{display:inline-block}.katex .clap,.katex .llap,.katex .rlap{position:relative;width:0}.katex .clap>.inner,.katex .llap>.inner,.katex .rlap>.inner{position:absolute}.katex .clap>.fix,.katex .llap>.fix,.katex .rlap>.fix{display:inline-block}.katex .llap>.inner{right:0}.katex .clap>.inner,.katex .rlap>.inner{left:0}.katex .clap>.inner>span{margin-left:-50%;margin-right:50%}.katex .rule{border:0 solid;display:inline-block;position:relative}.katex .hline,.katex .overline .overline-line,.katex .underline .underline-line{border-bottom-style:solid;display:inline-block;width:100%}.katex .hdashline{border-bottom-style:dashed;display:inline-block;width:100%}.katex .sqrt>.root{margin-left:.2777777778em;margin-right:-.5555555556em}.katex .fontsize-ensurer.reset-size1.size1,.katex .sizing.reset-size1.size1{font-size:1em}.katex .fontsize-ensurer.reset-size1.size2,.katex .sizing.reset-size1.size2{font-size:1.2em}.katex .fontsize-ensurer.reset-size1.size3,.katex .sizing.reset-size1.size3{font-size:1.4em}.katex .fontsize-ensurer.reset-size1.size4,.katex .sizing.reset-size1.size4{font-size:1.6em}.katex .fontsize-ensurer.reset-size1.size5,.katex .sizing.reset-size1.size5{font-size:1.8em}.katex .fontsize-ensurer.reset-size1.size6,.katex .sizing.reset-size1.size6{font-size:2em}.katex .fontsize-ensurer.reset-size1.size7,.katex .sizing.reset-size1.size7{font-size:2.4em}.katex .fontsize-ensurer.reset-size1.size8,.katex .sizing.reset-size1.size8{font-size:2.88em}.katex .fontsize-ensurer.reset-size1.size9,.katex .sizing.reset-size1.size9{font-size:3.456em}.katex .fontsize-ensurer.reset-size1.size10,.katex .sizing.reset-size1.size10{font-size:4.148em}.katex .fontsize-ensurer.reset-size1.size11,.katex .sizing.reset-size1.size11{font-size:4.976em}.katex .fontsize-ensurer.reset-size2.size1,.katex .sizing.reset-size2.size1{font-size:.8333333333em}.katex .fontsize-ensurer.reset-size2.size2,.katex .sizing.reset-size2.size2{font-size:1em}.katex .fontsize-ensurer.reset-size2.size3,.katex .sizing.reset-size2.size3{font-size:1.1666666667em}.katex .fontsize-ensurer.reset-size2.size4,.katex .sizing.reset-size2.size4{font-size:1.3333333333em}.katex .fontsize-ensurer.reset-size2.size5,.katex .sizing.reset-size2.size5{font-size:1.5em}.katex .fontsize-ensurer.reset-size2.size6,.katex .sizing.reset-size2.size6{font-size:1.6666666667em}.katex .fontsize-ensurer.reset-size2.size7,.katex .sizing.reset-size2.size7{font-size:2em}.katex .fontsize-ensurer.reset-size2.size8,.katex .sizing.reset-size2.size8{font-size:2.4em}.katex .fontsize-ensurer.reset-size2.size9,.katex .sizing.reset-size2.size9{font-size:2.88em}.katex .fontsize-ensurer.reset-size2.size10,.katex .sizing.reset-size2.size10{font-size:3.4566666667em}.katex .fontsize-ensurer.reset-size2.size11,.katex .sizing.reset-size2.size11{font-size:4.1466666667em}.katex .fontsize-ensurer.reset-size3.size1,.katex .sizing.reset-size3.size1{font-size:.7142857143em}.katex .fontsize-ensurer.reset-size3.size2,.katex .sizing.reset-size3.size2{font-size:.8571428571em}.katex .fontsize-ensurer.reset-size3.size3,.katex .sizing.reset-size3.size3{font-size:1em}.katex .fontsize-ensurer.reset-size3.size4,.katex .sizing.reset-size3.size4{font-size:1.1428571429em}.katex .fontsize-ensurer.reset-size3.size5,.katex .sizing.reset-size3.size5{font-size:1.2857142857em}.katex .fontsize-ensurer.reset-size3.size6,.katex .sizing.reset-size3.size6{font-size:1.4285714286em}.katex .fontsize-ensurer.reset-size3.size7,.katex .sizing.reset-size3.size7{font-size:1.7142857143em}.katex .fontsize-ensurer.reset-size3.size8,.katex .sizing.reset-size3.size8{font-size:2.0571428571em}.katex .fontsize-ensurer.reset-size3.size9,.katex .sizing.reset-size3.size9{font-size:2.4685714286em}.katex .fontsize-ensurer.reset-size3.size10,.katex .sizing.reset-size3.size10{font-size:2.9628571429em}.katex .fontsize-ensurer.reset-size3.size11,.katex .sizing.reset-size3.size11{font-size:3.5542857143em}.katex .fontsize-ensurer.reset-size4.size1,.katex .sizing.reset-size4.size1{font-size:.625em}.katex .fontsize-ensurer.reset-size4.size2,.katex .sizing.reset-size4.size2{font-size:.75em}.katex .fontsize-ensurer.reset-size4.size3,.katex .sizing.reset-size4.size3{font-size:.875em}.katex .fontsize-ensurer.reset-size4.size4,.katex .sizing.reset-size4.size4{font-size:1em}.katex .fontsize-ensurer.reset-size4.size5,.katex .sizing.reset-size4.size5{font-size:1.125em}.katex .fontsize-ensurer.reset-size4.size6,.katex .sizing.reset-size4.size6{font-size:1.25em}.katex .fontsize-ensurer.reset-size4.size7,.katex .sizing.reset-size4.size7{font-size:1.5em}.katex .fontsize-ensurer.reset-size4.size8,.katex .sizing.reset-size4.size8{font-size:1.8em}.katex .fontsize-ensurer.reset-size4.size9,.katex .sizing.reset-size4.size9{font-size:2.16em}.katex .fontsize-ensurer.reset-size4.size10,.katex .sizing.reset-size4.size10{font-size:2.5925em}.katex .fontsize-ensurer.reset-size4.size11,.katex .sizing.reset-size4.size11{font-size:3.11em}.katex .fontsize-ensurer.reset-size5.size1,.katex .sizing.reset-size5.size1{font-size:.5555555556em}.katex .fontsize-ensurer.reset-size5.size2,.katex .sizing.reset-size5.size2{font-size:.6666666667em}.katex .fontsize-ensurer.reset-size5.size3,.katex .sizing.reset-size5.size3{font-size:.7777777778em}.katex .fontsize-ensurer.reset-size5.size4,.katex .sizing.reset-size5.size4{font-size:.8888888889em}.katex .fontsize-ensurer.reset-size5.size5,.katex .sizing.reset-size5.size5{font-size:1em}.katex .fontsize-ensurer.reset-size5.size6,.katex .sizing.reset-size5.size6{font-size:1.1111111111em}.katex .fontsize-ensurer.reset-size5.size7,.katex .sizing.reset-size5.size7{font-size:1.3333333333em}.katex .fontsize-ensurer.reset-size5.size8,.katex .sizing.reset-size5.size8{font-size:1.6em}.katex .fontsize-ensurer.reset-size5.size9,.katex .sizing.reset-size5.size9{font-size:1.92em}.katex .fontsize-ensurer.reset-size5.size10,.katex .sizing.reset-size5.size10{font-size:2.3044444444em}.katex .fontsize-ensurer.reset-size5.size11,.katex .sizing.reset-size5.size11{font-size:2.7644444444em}.katex .fontsize-ensurer.reset-size6.size1,.katex .sizing.reset-size6.size1{font-size:.5em}.katex .fontsize-ensurer.reset-size6.size2,.katex .sizing.reset-size6.size2{font-size:.6em}.katex .fontsize-ensurer.reset-size6.size3,.katex .sizing.reset-size6.size3{font-size:.7em}.katex .fontsize-ensurer.reset-size6.size4,.katex .sizing.reset-size6.size4{font-size:.8em}.katex .fontsize-ensurer.reset-size6.size5,.katex .sizing.reset-size6.size5{font-size:.9em}.katex .fontsize-ensurer.reset-size6.size6,.katex .sizing.reset-size6.size6{font-size:1em}.katex .fontsize-ensurer.reset-size6.size7,.katex .sizing.reset-size6.size7{font-size:1.2em}.katex .fontsize-ensurer.reset-size6.size8,.katex .sizing.reset-size6.size8{font-size:1.44em}.katex .fontsize-ensurer.reset-size6.size9,.katex .sizing.reset-size6.size9{font-size:1.728em}.katex .fontsize-ensurer.reset-size6.size10,.katex .sizing.reset-size6.size10{font-size:2.074em}.katex .fontsize-ensurer.reset-size6.size11,.katex .sizing.reset-size6.size11{font-size:2.488em}.katex .fontsize-ensurer.reset-size7.size1,.katex .sizing.reset-size7.size1{font-size:.4166666667em}.katex .fontsize-ensurer.reset-size7.size2,.katex .sizing.reset-size7.size2{font-size:.5em}.katex .fontsize-ensurer.reset-size7.size3,.katex .sizing.reset-size7.size3{font-size:.5833333333em}.katex .fontsize-ensurer.reset-size7.size4,.katex .sizing.reset-size7.size4{font-size:.6666666667em}.katex .fontsize-ensurer.reset-size7.size5,.katex .sizing.reset-size7.size5{font-size:.75em}.katex .fontsize-ensurer.reset-size7.size6,.katex .sizing.reset-size7.size6{font-size:.8333333333em}.katex .fontsize-ensurer.reset-size7.size7,.katex .sizing.reset-size7.size7{font-size:1em}.katex .fontsize-ensurer.reset-size7.size8,.katex .sizing.reset-size7.size8{font-size:1.2em}.katex .fontsize-ensurer.reset-size7.size9,.katex .sizing.reset-size7.size9{font-size:1.44em}.katex .fontsize-ensurer.reset-size7.size10,.katex .sizing.reset-size7.size10{font-size:1.7283333333em}.katex .fontsize-ensurer.reset-size7.size11,.katex .sizing.reset-size7.size11{font-size:2.0733333333em}.katex .fontsize-ensurer.reset-size8.size1,.katex .sizing.reset-size8.size1{font-size:.3472222222em}.katex .fontsize-ensurer.reset-size8.size2,.katex .sizing.reset-size8.size2{font-size:.4166666667em}.katex .fontsize-ensurer.reset-size8.size3,.katex .sizing.reset-size8.size3{font-size:.4861111111em}.katex .fontsize-ensurer.reset-size8.size4,.katex .sizing.reset-size8.size4{font-size:.5555555556em}.katex .fontsize-ensurer.reset-size8.size5,.katex .sizing.reset-size8.size5{font-size:.625em}.katex .fontsize-ensurer.reset-size8.size6,.katex .sizing.reset-size8.size6{font-size:.6944444444em}.katex .fontsize-ensurer.reset-size8.size7,.katex .sizing.reset-size8.size7{font-size:.8333333333em}.katex .fontsize-ensurer.reset-size8.size8,.katex .sizing.reset-size8.size8{font-size:1em}.katex .fontsize-ensurer.reset-size8.size9,.katex .sizing.reset-size8.size9{font-size:1.2em}.katex .fontsize-ensurer.reset-size8.size10,.katex .sizing.reset-size8.size10{font-size:1.4402777778em}.katex .fontsize-ensurer.reset-size8.size11,.katex .sizing.reset-size8.size11{font-size:1.7277777778em}.katex .fontsize-ensurer.reset-size9.size1,.katex .sizing.reset-size9.size1{font-size:.2893518519em}.katex .fontsize-ensurer.reset-size9.size2,.katex .sizing.reset-size9.size2{font-size:.3472222222em}.katex .fontsize-ensurer.reset-size9.size3,.katex .sizing.reset-size9.size3{font-size:.4050925926em}.katex .fontsize-ensurer.reset-size9.size4,.katex .sizing.reset-size9.size4{font-size:.462962963em}.katex .fontsize-ensurer.reset-size9.size5,.katex .sizing.reset-size9.size5{font-size:.5208333333em}.katex .fontsize-ensurer.reset-size9.size6,.katex .sizing.reset-size9.size6{font-size:.5787037037em}.katex .fontsize-ensurer.reset-size9.size7,.katex .sizing.reset-size9.size7{font-size:.6944444444em}.katex .fontsize-ensurer.reset-size9.size8,.katex .sizing.reset-size9.size8{font-size:.8333333333em}.katex .fontsize-ensurer.reset-size9.size9,.katex .sizing.reset-size9.size9{font-size:1em}.katex .fontsize-ensurer.reset-size9.size10,.katex .sizing.reset-size9.size10{font-size:1.2002314815em}.katex .fontsize-ensurer.reset-size9.size11,.katex .sizing.reset-size9.size11{font-size:1.4398148148em}.katex .fontsize-ensurer.reset-size10.size1,.katex .sizing.reset-size10.size1{font-size:.2410800386em}.katex .fontsize-ensurer.reset-size10.size2,.katex .sizing.reset-size10.size2{font-size:.2892960463em}.katex .fontsize-ensurer.reset-size10.size3,.katex .sizing.reset-size10.size3{font-size:.337512054em}.katex .fontsize-ensurer.reset-size10.size4,.katex .sizing.reset-size10.size4{font-size:.3857280617em}.katex .fontsize-ensurer.reset-size10.size5,.katex .sizing.reset-size10.size5{font-size:.4339440694em}.katex .fontsize-ensurer.reset-size10.size6,.katex .sizing.reset-size10.size6{font-size:.4821600771em}.katex .fontsize-ensurer.reset-size10.size7,.katex .sizing.reset-size10.size7{font-size:.5785920926em}.katex .fontsize-ensurer.reset-size10.size8,.katex .sizing.reset-size10.size8{font-size:.6943105111em}.katex .fontsize-ensurer.reset-size10.size9,.katex .sizing.reset-size10.size9{font-size:.8331726133em}.katex .fontsize-ensurer.reset-size10.size10,.katex .sizing.reset-size10.size10{font-size:1em}.katex .fontsize-ensurer.reset-size10.size11,.katex .sizing.reset-size10.size11{font-size:1.1996142719em}.katex .fontsize-ensurer.reset-size11.size1,.katex .sizing.reset-size11.size1{font-size:.2009646302em}.katex .fontsize-ensurer.reset-size11.size2,.katex .sizing.reset-size11.size2{font-size:.2411575563em}.katex .fontsize-ensurer.reset-size11.size3,.katex .sizing.reset-size11.size3{font-size:.2813504823em}.katex .fontsize-ensurer.reset-size11.size4,.katex .sizing.reset-size11.size4{font-size:.3215434084em}.katex .fontsize-ensurer.reset-size11.size5,.katex .sizing.reset-size11.size5{font-size:.3617363344em}.katex .fontsize-ensurer.reset-size11.size6,.katex .sizing.reset-size11.size6{font-size:.4019292605em}.katex .fontsize-ensurer.reset-size11.size7,.katex .sizing.reset-size11.size7{font-size:.4823151125em}.katex .fontsize-ensurer.reset-size11.size8,.katex .sizing.reset-size11.size8{font-size:.578778135em}.katex .fontsize-ensurer.reset-size11.size9,.katex .sizing.reset-size11.size9{font-size:.6945337621em}.katex .fontsize-ensurer.reset-size11.size10,.katex .sizing.reset-size11.size10{font-size:.8336012862em}.katex .fontsize-ensurer.reset-size11.size11,.katex .sizing.reset-size11.size11{font-size:1em}.katex .delimsizing.size1{font-family:KaTeX_Size1}.katex .delimsizing.size2{font-family:KaTeX_Size2}.katex .delimsizing.size3{font-family:KaTeX_Size3}.katex .delimsizing.size4{font-family:KaTeX_Size4}.katex .delimsizing.mult .delim-size1>span{font-family:KaTeX_Size1}.katex .delimsizing.mult .delim-size4>span{font-family:KaTeX_Size4}.katex .nulldelimiter{display:inline-block;width:.12em}.katex .delimcenter,.katex .op-symbol{position:relative}.katex .op-symbol.small-op{font-family:KaTeX_Size1}.katex .op-symbol.large-op{font-family:KaTeX_Size2}.katex .accent>.vlist-t,.katex .op-limits>.vlist-t{text-align:center}.katex .accent .accent-body{position:relative}.katex .accent .accent-body:not(.accent-full){width:0}.katex .overlay{display:block}.katex .mtable .vertical-separator{display:inline-block;min-width:1px}.katex .mtable .arraycolsep{display:inline-block}.katex .mtable .col-align-c>.vlist-t{text-align:center}.katex .mtable .col-align-l>.vlist-t{text-align:left}.katex .mtable .col-align-r>.vlist-t{text-align:right}.katex .svg-align{text-align:left}.katex svg{fill:currentColor;stroke:currentColor;fill-rule:nonzero;fill-opacity:1;stroke-width:1;stroke-linecap:butt;stroke-linejoin:miter;stroke-miterlimit:4;stroke-dasharray:none;stroke-dashoffset:0;stroke-opacity:1;display:block;height:inherit;position:absolute;width:100%}.katex svg path{stroke:none}.katex img{border-style:none;max-height:none;max-width:none;min-height:0;min-width:0}.katex .stretchy{display:block;overflow:hidden;position:relative;width:100%}.katex .stretchy:after,.katex .stretchy:before{content:""}.katex .hide-tail{overflow:hidden;position:relative;width:100%}.katex .halfarrow-left{left:0;overflow:hidden;position:absolute;width:50.2%}.katex .halfarrow-right{overflow:hidden;position:absolute;right:0;width:50.2%}.katex .brace-left{left:0;overflow:hidden;position:absolute;width:25.1%}.katex .brace-center{left:25%;overflow:hidden;position:absolute;width:50%}.katex .brace-right{overflow:hidden;position:absolute;right:0;width:25.1%}.katex .x-arrow-pad{padding:0 .5em}.katex .cd-arrow-pad{padding:0 .55556em 0 .27778em}.katex .mover,.katex .munder,.katex .x-arrow{text-align:center}.katex .boxpad{padding:0 .3em}.katex .fbox,.katex .fcolorbox{border:.04em solid;box-sizing:border-box}.katex .cancel-pad{padding:0 .2em}.katex .cancel-lap{margin-left:-.2em;margin-right:-.2em}.katex .sout{border-bottom-style:solid;border-bottom-width:.08em}.katex .angl{border-right:.049em solid;border-top:.049em solid;box-sizing:border-box;margin-right:.03889em}.katex .anglpad{padding:0 .03889em}.katex .eqn-num:before{content:"(" counter(katexEqnNo) ")";counter-increment:katexEqnNo}.katex .mml-eqn-num:before{content:"(" counter(mmlEqnNo) ")";counter-increment:mmlEqnNo}.katex .mtr-glue{width:50%}.katex .cd-vert-arrow{display:inline-block;position:relative}.katex .cd-label-left{display:inline-block;position:absolute;right:calc(50% + .3em);text-align:left}.katex .cd-label-right{display:inline-block;left:calc(50% + .3em);position:absolute;text-align:right}.katex-display{display:block;margin:1em 0;text-align:center}.katex-display>.katex{display:block;text-align:center;white-space:nowrap}.katex-display>.katex>.katex-html{display:block;position:relative}.katex-display>.katex>.katex-html>.tag{position:absolute;right:0}.katex-display.leqno>.katex>.katex-html>.tag{left:0;right:auto}.katex-display.fleqn>.katex{padding-left:2em;text-align:left}body{counter-reset:katexEqnNo mmlEqnNo}
