:root{--bg: #f4f6fb;--card: #ffffff;--line: #e3e7f0;--ink: #1c2434;--muted: #66718c;--accent: #3b6ef5;--accent-soft: #eaf0fe;--ok: #16a34a;--warn: #d97706;--danger: #dc2626;--blue: #2563eb;--red: #dc2626;--green: #16a34a;--radius: 10px;--shadow: 0 1px 2px rgba(28, 36, 52, .06), 0 4px 14px rgba(28, 36, 52, .05)}*{box-sizing:border-box}html,body,#root{height:100%}html,body{margin:0;padding:0}body{background:var(--bg);color:var(--ink);font-family:system-ui,-apple-system,Segoe UI,PingFang SC,Microsoft YaHei,Noto Sans SC,sans-serif;font-size:14px;line-height:1.55}.app{height:100%;min-height:0;display:flex;flex-direction:column;overflow:hidden}.ai-banner{display:flex;align-items:center;justify-content:center;gap:12px;background:#eef0ff;color:#5b5bd6;font-size:12px;font-weight:600;padding:6px 12px;border-bottom:1px solid #dfe3ff;letter-spacing:.02em}.ai-banner-dismiss{border:1px solid #c9cdf0;background:transparent;color:#5b5bd6;font-size:11.5px;font-weight:600;border-radius:999px;padding:1px 10px;cursor:pointer;line-height:1.5}.ai-banner-dismiss:hover{background:#dde1ff}.header-actions{display:flex;align-items:center;gap:8px;flex-wrap:wrap;justify-content:flex-end}.header{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:14px 22px;background:var(--card);border-bottom:1px solid var(--line)}.header-title{display:flex;align-items:center;gap:12px;min-width:0}.header-meta{min-width:0}.header-workspace{display:flex;align-items:baseline;gap:4px;flex-wrap:wrap;min-width:0}.header-workspace strong{font-size:13.5px;color:var(--ink)}.name-btn{display:inline-flex;align-items:center;gap:6px;padding:2px 6px;border:1px solid transparent;border-radius:6px;background:none;cursor:text}.name-btn:hover{border-color:var(--line);background:#f8fafc}.name-edit{font-size:11.5px;color:var(--muted);opacity:0}.name-btn:hover .name-edit{opacity:1}.rename-input{font-size:13.5px;font-weight:600;color:var(--ink);padding:2px 6px;border:1px solid var(--blue);border-radius:6px;background:#fff;min-width:140px}.header-workspace-select{max-width:180px;flex:0 0 auto}.logo{font-size:30px}.header h1{margin:0;font-size:18px;font-weight:700;white-space:nowrap}.header p{margin:2px 0 0;color:var(--muted);font-size:12.5px}.main{flex:1;min-height:0;display:grid;grid-template-columns:380px 1fr;gap:18px;padding:18px 22px;align-items:stretch;max-width:1600px;width:100%;margin:0 auto;overflow:hidden}.sidebar{display:flex;flex-direction:column;gap:14px;min-height:0;overflow-y:auto;overscroll-behavior:contain;padding-right:6px}.content{display:flex;flex-direction:column;gap:14px;min-width:0;min-height:0;overflow-y:auto;overscroll-behavior:contain;padding-right:6px}.card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow);padding:14px 16px}.canvas-card{background:transparent}.card-title{display:flex;align-items:center;gap:8px;margin:0 0 10px;font-size:14.5px;font-weight:700}.step{display:inline-flex;align-items:center;justify-content:center;width:20px;height:20px;border-radius:50%;background:var(--accent);color:#fff;font-size:12px;font-weight:700}.card-head{display:flex;align-items:center;justify-content:space-between;gap:8px;flex-wrap:wrap}.card-head .card-title{margin-bottom:0}.card-actions{display:flex;align-items:center;gap:10px}.btn{display:inline-flex;align-items:center;justify-content:center;gap:6px;padding:7px 14px;border:1px solid var(--line);border-radius:8px;background:#fff;color:var(--ink);font-size:13.5px;font-weight:600;cursor:pointer;transition:all .15s ease;white-space:nowrap}.btn:hover{border-color:#c9d2e6;background:#f7f9fd}.btn:active{transform:translateY(1px)}.btn-primary{background:var(--accent);border-color:var(--accent);color:#fff}.btn-primary:hover{background:#2f5fe0;border-color:#2f5fe0}.btn-ghost{border-color:transparent;background:transparent;color:var(--muted)}.btn-ghost:hover{background:#eef1f8;color:var(--ink)}.btn-row{display:flex;gap:8px;flex-wrap:wrap;margin:4px 0}.small-btn{padding:5px 10px;font-size:12.5px;margin-top:6px}.btn-icon{border:none;background:transparent;color:var(--muted);cursor:pointer;font-size:13px;padding:2px 5px;border-radius:5px;line-height:1}.btn-icon:hover{background:#f0f2f8;color:var(--ink)}.btn-icon.danger:hover{background:#fdecec;color:var(--danger)}.seg{display:flex;overflow-x:auto;border:1px solid var(--line);border-radius:9px;margin-bottom:6px}.seg-btn{flex:1;white-space:nowrap;padding:8px 4px;border:none;background:#fff;color:var(--muted);font-size:13px;font-weight:600;cursor:pointer;border-right:1px solid var(--line)}.seg-btn:last-child{border-right:none}.seg-btn.active{background:var(--accent-soft);color:var(--accent)}input[type=number],select,input[type=text]{padding:6px 9px;border:1px solid var(--line);border-radius:7px;font-size:13px;font-family:inherit;background:#fff;color:var(--ink);outline:none;transition:border-color .15s ease}input[type=number]:focus,select:focus{border-color:var(--accent);box-shadow:0 0 0 3px #3b6ef51f}.field-label{display:flex;flex-direction:column;gap:4px;font-size:12.5px;color:var(--muted);font-weight:600;margin-bottom:9px}.axis-state{display:flex;flex-direction:column;gap:7px;margin-bottom:8px}.axis-config{display:flex;align-items:center;gap:8px;flex-wrap:wrap;background:#f8fafd;border:1px solid var(--line);border-radius:8px;padding:7px 10px}.axis-type{padding:4px 6px;font-size:12.5px}.axis-eq-line{padding:0 2px}.axis-quality{margin:2px 0 0}.row-warn{border-color:var(--danger);background:#fdf1f1}.axis-name{font-weight:700;font-size:13px}.pill{font-size:11.5px;font-weight:700;padding:1px 8px;border-radius:999px}.pill.ok{background:#e7f8ee;color:var(--ok)}.pill.warn{background:#fdf1e0;color:var(--warn)}.axis-eq{font-family:SF Mono,Consolas,Courier New,monospace;font-size:12px;color:var(--muted)}.pending-box{border:1px dashed var(--warn);background:#fffaf0;border-radius:8px;padding:10px;margin:8px 0}.pending-title{font-size:12.5px;font-weight:600;color:var(--warn);margin-bottom:7px}.pending-row{display:flex;gap:8px;flex-wrap:wrap;margin-bottom:8px}.pending-row label{display:flex;flex-direction:column;gap:3px;font-size:12px;color:var(--muted)}.list{display:flex;flex-direction:column;gap:5px;margin-top:8px;max-height:260px;overflow-y:auto;padding-right:2px}.list-tall{max-height:300px}.row{display:flex;align-items:center;gap:7px;background:#f8fafd;border:1px solid var(--line);border-radius:7px;padding:5px 7px}.row input[type=number],.row input.float-input{width:86px;padding:4px 7px}.row .mono{font-family:SF Mono,Consolas,monospace;font-size:12px;flex:1;min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.idx{font-size:11.5px;font-weight:700;width:34px;flex-shrink:0}.idx.blue{color:var(--blue)}.idx.red{color:var(--red)}.count-badge{margin-left:auto;background:var(--accent-soft);color:var(--accent);font-size:12px;font-weight:700;border-radius:999px;padding:0 10px}.muted{color:var(--muted)}.small{font-size:12.5px;margin:4px 0}.notice{background:#fdecec;color:var(--danger);border:1px solid #f7c6c8;border-radius:8px;padding:7px 10px;font-size:12.5px;margin-top:8px}.notice.warn{background:#fdf1e0;color:var(--warn);border-color:#f3d7a8;margin-top:0}.fit-result{margin-top:6px;display:flex;flex-direction:column;gap:9px}.fit-equation{font-family:SF Mono,Consolas,Courier New,monospace;font-size:15px;font-weight:700;background:#0f172a;color:#7ee0a6;border-radius:8px;padding:9px 12px;overflow-x:auto;white-space:nowrap}.fit-metrics{display:flex;gap:8px}.fit-metrics>div{flex:1;display:flex;flex-direction:column;align-items:center;background:#f8fafd;border:1px solid var(--line);border-radius:8px;padding:7px 4px}.metric-value{font-size:14.5px;font-weight:800}.metric-label{font-size:11px;color:var(--muted)}.fit-params{display:flex;flex-wrap:wrap;gap:6px}.chip{font-size:12px;font-family:SF Mono,Consolas,monospace;background:var(--accent-soft);color:var(--accent);border-radius:999px;padding:2px 9px}.check{display:flex;align-items:center;gap:7px;margin-top:12px;font-size:13px;cursor:pointer;-webkit-user-select:none;user-select:none}.canvas-wrap{position:relative;display:flex;align-items:center;justify-content:center;width:100%;aspect-ratio:16 / 10;background-color:#fff;background-image:linear-gradient(45deg,#f3f5f9 25%,transparent 25%,transparent 75%,#f3f5f9 75%),linear-gradient(45deg,#f3f5f9 25%,transparent 25%,transparent 75%,#f3f5f9 75%);background-size:18px 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solid var(--line);border-radius:8px;padding:6px 10px;margin-bottom:10px;font-size:13px}.active-series .muted{color:var(--muted)}.series-legend{display:flex;flex-direction:column;gap:4px;margin-bottom:8px;background:#f8fafd;border:1px solid var(--line);border-radius:8px;padding:8px 10px}.legend-row{display:flex;align-items:center;gap:8px;flex-wrap:wrap}.legend-name{font-weight:700;font-size:12.5px}.legend-eq{font-family:SF Mono,Consolas,Courier New,monospace;font-size:12px;background:#0f172a;color:#7ee0a6;border-radius:6px;padding:2px 8px}.base-picker{display:inline-flex;align-items:center;gap:5px}.base-picker .chip-btn{padding:2px 8px}.base-row{display:flex;align-items:center;gap:6px;flex-wrap:wrap;margin:2px 0 8px}.base-row .muted{margin-right:2px}.chip-btn{border:1px solid var(--line);background:#fff;color:var(--ink);font-size:12px;font-weight:700;border-radius:7px;padding:3px 10px;cursor:pointer;line-height:1.5}.chip-btn:hover{border-color:var(--accent);color:var(--accent)}.chip-btn.active{background:var(--accent-soft);border-color:var(--accent);color:var(--accent)}.base-input,input.base-input{width:72px;padding:3px 7px}.field-label input[type=range]{width:100%;margin:4px 0;accent-color:var(--accent)}.legend{display:flex;gap:18px;align-items:center;padding:2px 2px 0;flex-wrap:wrap}.legend span{display:inline-flex;align-items:center;gap:6px;font-size:12.5px;color:var(--muted)}.select-bar{display:flex;gap:10px;align-items:center;flex-wrap:wrap;padding:6px 2px 0;min-height:26px}.color-row{flex-wrap:wrap}.color-swatch{width:18px;height:18px;border-radius:4px;border:1px solid var(--line);display:inline-block}.dot{width:11px;height:11px;border-radius:50%;display:inline-block;border:2px solid #fff;box-shadow:0 0 0 1.5px currentColor}.dot.blue{background:var(--blue);color:var(--blue);border-radius:2px}.dot.red{background:var(--red);color:var(--red)}.dot.green{background:var(--green);color:var(--green)}.result-chart{width:100%;height:auto;display:block}.chart-grid{stroke:#e6eaf3;stroke-width:1}.chart-tick{font-size:10.5px;fill:var(--muted)}.chart-axis-label{font-size:13px;font-style:italic;font-weight:700;fill:var(--ink)}.chart-curve{fill:none;stroke:var(--green);stroke-width:2.5}.chart-point{fill:#fff;stroke:var(--red);stroke-width:2}.chart-equation{font-size:12px;font-family:SF Mono,Consolas,monospace;fill:var(--muted)}.chart-empty{padding:30px 0;text-align:center;color:var(--muted)}@media (max-width: 980px){.main{grid-template-columns:1fr}}.zoom-controls{display:inline-flex;align-items:center;gap:4px;margin-left:auto}.zoom-value{min-width:46px;text-align:center;font-family:SF Mono,Consolas,monospace;font-size:11px;color:var(--ink)}.dag-svg{display:block;width:100%;height:auto;overflow:visible}.dag-edge{stroke:var(--line);stroke-width:1.6}.dag-arrowhead{fill:var(--line)}.dag-g{cursor:pointer;outline:none}.dag-g:focus{outline:none}.dag-g:focus-visible .dag-rect{stroke:var(--accent);stroke-width:2.5}.dag-rect{fill:#fff;stroke:var(--line);stroke-width:1.4}.dag-g:hover .dag-rect{fill:#f1f5f9}.dag-g.active .dag-rect{fill:var(--accent-soft);stroke:var(--accent)}.dag-dot{fill:#fff;stroke:var(--muted);stroke-width:1.6}.dag-g.active .dag-dot{fill:var(--accent);stroke:var(--accent)}.dag-text{font-size:13px;font-weight:600;fill:var(--ink)}.dag-text.small{font-size:12px}.dag-g.active .dag-text{fill:var(--accent)}.dot-picker{position:relative;display:inline-flex;align-items:center;gap:2px;flex:0 0 auto;padding:4px 3px;margin:-4px -3px;border-radius:6px;cursor:pointer}.dot-picker:hover{background:#eef2f7}.dot-picker:after{content:"▾";font-size:9px;line-height:1;color:var(--muted)}.dot-picker input[type=color]{position:absolute;top:0;right:0;bottom:0;left:0;width:100%;height:100%;opacity:0;border:0;padding:0;cursor:pointer}.dot-picker:hover .dot{box-shadow:0 0 0 3px var(--accent-soft)}.hint-line{margin:6px 0 0;font-size:12px;color:var(--muted)}.region-box{display:flex;flex-direction:column;gap:4px;padding:8px 10px;margin-bottom:8px;border:1px solid var(--line);border-radius:10px}.region-box .field-label{min-width:84px}.num-input.readonly{display:inline-flex;align-items:center;justify-content:center;background:var(--accent-soft);border-color:var(--accent);color:var(--accent);font-weight:700}.run-box{display:flex;align-items:flex-end;gap:8px;flex-wrap:wrap;padding:10px;margin-bottom:8px;border:1px solid var(--line);border-radius:10px;background:#f8fafc}.run-field{display:flex;flex-direction:column;gap:3px;font-size:12.5px;color:var(--muted)}.run-field .num-input{width:92px}.run-go{flex:1 1 auto}.advanced-head{margin:10px 0 6px;font-size:12px;font-weight:700;color:var(--muted);letter-spacing:.04em}.collapse{border:1px solid var(--line);border-radius:8px;margin-bottom:8px;overflow:hidden;background:#fff}.collapse-head{width:100%;display:flex;align-items:center;gap:6px;padding:7px 10px;background:#f8fafc;border:0;cursor:pointer;font-size:12.5px;font-weight:600;color:var(--ink);text-align:left}.collapse-head:hover{background:#f1f5f9}.collapse-caret{color:var(--muted);font-size:11px}.collapse-body{padding:8px 10px 10px;display:flex;flex-direction:column;gap:6px}.field-row{display:flex;align-items:center;gap:8px;flex-wrap:wrap;font-size:12.5px}.field-label{min-width:76px;color:var(--muted);flex-shrink:0}.select{flex:1;min-width:120px;padding:4px 6px;border:1px solid var(--line);border-radius:6px;background:#fff;font-size:12px;color:var(--ink)}.num-input{width:76px;padding:3px 6px;border:1px solid var(--line);border-radius:6px;font-family:SF Mono,Consolas,monospace;font-size:12px;text-align:right}.check{display:inline-flex;align-items:center;gap:5px;font-size:12.5px;color:var(--ink);cursor:pointer}.rect-grid{display:grid;grid-template-columns:1fr 1fr;gap:4px 10px}.rect-grid .field-label{min-width:52px}.seg{display:inline-flex;gap:4px}.btn-row{display:flex;flex-wrap:wrap;gap:6px}.series-target{display:inline-flex;align-items:center;gap:6px}.report-box{margin:6px 0;padding:7px 9px;border-radius:8px;background:#f0fdfa;border:1px solid #99f6e4;display:flex;flex-direction:column;gap:4px}.report-line{display:flex;align-items:center;gap:8px;flex-wrap:wrap}.warn-line{font-size:12px;color:#b45309;line-height:1.45}.table-wrap{margin-top:6px;max-height:320px;overflow:auto;border:1px solid var(--line);border-radius:8px}.data-table{width:100%;border-collapse:collapse;font-size:11.5px}.data-table th{position:sticky;top:0;background:#f1f5f9;padding:5px 6px;text-align:left;font-weight:600;color:var(--muted);border-bottom:1px solid var(--line);z-index:1}.data-table td{padding:3px 6px;border-bottom:1px solid #f1f5f9;white-space:nowrap}.data-table tr.low-conf{background:#fffbeb}.data-table tr.low-conf td{color:#b45309}.data-table tr.dropped-row td{color:var(--muted);text-decoration:line-through}.data-table tr.dropped-row input[type=checkbox]{opacity:.45}.data-table tr.manual td:first-child:after{content:"✎";margin-left:3px;color:var(--blue)}.chart-errbar{stroke-width:1.2;opacity:.75}.chart-series-line{stroke-width:1.2;opacity:.8}.chart-curve-series{fill:none;stroke-width:2.5}