/* Operate surface. Inherits the atlas: paper white, graphite, blue A and ochre B. */
:root{--ground:#f3f5f6;--surface:#fff;--ink:#20282d;--muted:#4e5b63;--rule:#dce2e6;--control:#a8b3ba;--accent:#2e657b;--b:#a65036;--focus:#185c7b;--selected:#eef3f5;--error:#913c2a;--gap:24px;--rail:192px;font-family:"Research SC","Atlas SC","Microsoft YaHei",sans-serif;color:var(--ink);background:var(--ground);font-synthesis:none}
*{box-sizing:border-box}html{scroll-padding-top:24px}body{margin:0;font-size:14px;line-height:1.6}body::selection,::selection{background:#cddfe6;color:var(--ink)}a{color:inherit;text-decoration:none;text-underline-offset:4px}a:hover{text-decoration:underline}button,input,select,textarea{font:inherit;color:inherit}button,.file-button{cursor:pointer;border:1px solid var(--control);border-radius:3px;background:var(--surface);min-height:42px;padding:8px 13px;transition:background-color 160ms ease,border-color 160ms ease}button:hover,.file-button:hover{background:#f8fafb;border-color:var(--ink)}button:active{background:var(--selected)}button:disabled,select:disabled{cursor:default;color:#64717a;border-color:#c7cfd4;background:var(--ground)}.primary{color:#fff;background:var(--ink);border-color:var(--ink)}.primary:hover{background:#344149;color:#fff}:focus-visible{outline:3px solid var(--focus);outline-offset:3px}input,select,textarea{width:100%;min-height:42px;border:1px solid var(--control);border-radius:3px;background:var(--surface);padding:8px 10px;caret-color:var(--accent)}textarea{resize:vertical}input::placeholder,textarea::placeholder{color:#64717a;opacity:1}input[type=checkbox]{width:18px;min-height:18px;accent-color:var(--ink)}label{display:block}h1,h2,p{margin:0}h1{font-size:28px;line-height:1.4;font-weight:600;letter-spacing:-.03em}h2{font-size:18px;font-weight:600;line-height:1.5}.hint{font-size:13px;color:var(--muted);line-height:1.75}.num{font-variant-numeric:tabular-nums;text-align:right}.skip{position:absolute;left:12px;top:-80px;z-index:20;background:var(--surface);padding:12px}.skip:focus{top:12px}.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}[hidden]{display:none!important}
.rail{position:fixed;inset:0 auto 0 0;width:var(--rail);padding:32px 18px;display:flex;flex-direction:column}.brand{font-size:20px;font-weight:600;display:flex;align-items:center;gap:8px;white-space:nowrap}.brand svg{width:25px;height:25px;fill:none;stroke:var(--ink);stroke-width:1.8}.scope{font-size:12px;color:var(--muted);margin:10px 0 34px}.scope span,.brand span{font-size:12px;margin-left:4px;font-weight:400}.rail nav{display:grid;gap:4px}.rail nav a{padding:10px 12px;border-radius:3px;min-height:44px}.rail nav [aria-current]{background:#e5e9eb}.rail-note{margin-top:auto;font-size:12px;color:var(--muted)}.rail-note a{display:block;margin-top:12px}.canvas{margin-left:var(--rail);padding:32px;max-width:1800px}.mobile-bar{display:none}.page-heading{display:flex;gap:24px;justify-content:space-between;align-items:center;margin-bottom:24px}.page-heading p{color:var(--muted);margin-top:4px;font-size:15px}.actions{display:flex;gap:8px;align-items:center;flex-shrink:0}.file-button{position:relative;display:inline-flex;align-items:center;justify-content:center;overflow:hidden}.file-button input{position:absolute;inset:0;opacity:0;cursor:pointer;padding:0;min-height:0}.file-button:focus-within{outline:3px solid var(--focus);outline-offset:3px}.recovery-bar{display:flex;gap:16px;justify-content:space-between;align-items:center;padding:12px 0;margin-bottom:16px;border-bottom:1px solid var(--rule)}.recovery-bar p{font-size:13px;color:var(--muted);overflow-wrap:anywhere}.recovery-bar>div{flex-shrink:0;display:flex;gap:8px}.recovery-bar button{min-height:36px;font-size:13px}
.protocol-panel{background:var(--surface);border:1px solid var(--rule);border-radius:4px;margin:0}.protocol-toolbar{display:grid;grid-template-columns:minmax(160px,230px) minmax(160px,230px) minmax(230px,1fr);gap:24px;padding:16px 20px;align-items:end}.protocol-toolbar>label:not(.checkbox){display:grid;grid-template-columns:auto minmax(100px,1fr);gap:12px;align-items:center;white-space:nowrap}.checkbox{display:flex;align-items:center;gap:9px;min-height:42px}.checkbox input{margin:0}#protocol-details{border-top:1px solid var(--rule)}#protocol-details>summary{cursor:pointer;display:flex;justify-content:space-between;gap:24px;min-height:44px;align-items:center;padding:10px 20px;font-size:13px;list-style:none}#protocol-details>summary>span:first-child{text-decoration:underline;text-underline-offset:4px}#protocol-preview{color:var(--muted);font-variant-numeric:tabular-nums;overflow-wrap:anywhere;text-align:right}.protocol-fields{padding:8px 20px 20px;display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px 24px}.protocol-fields label{font-size:13px}.protocol-fields input,.protocol-fields select,.protocol-fields textarea{margin-top:5px}.pair{display:grid;grid-template-columns:1fr 1fr;gap:12px}.wide-field{grid-column:span 3}.full-field{grid-column:1/-1}.execution-status{display:flex;justify-content:space-between;align-items:start;gap:16px;margin:14px 0 20px;min-height:22px}#research-status{font-size:13px;color:var(--muted)}#research-status[data-error=true]{color:var(--error)}.result-state{font-size:12px;white-space:nowrap;color:var(--muted)}
.research-layout{display:grid;grid-template-columns:minmax(0,1fr) 340px;gap:var(--gap);align-items:start}.results-column{display:grid;gap:var(--gap);min-width:0}.panel{background:var(--surface);border:1px solid var(--rule);border-radius:4px;padding:22px;min-width:0}.panel-heading{display:flex;justify-content:space-between;gap:16px;align-items:start;margin-bottom:16px}.panel-heading p{font-size:13px;color:var(--muted);margin-top:4px}.view-controls{display:flex;gap:10px}.view-controls label{font-size:12px;color:var(--muted);white-space:nowrap}.view-controls select{display:block;margin-top:4px;min-width:66px;max-width:136px;font-size:13px}.finding{font-size:19px;line-height:1.65;margin:0 0 18px;max-width:46ch;font-weight:400;overflow-wrap:anywhere}.matrix-scroll,.table-scroll{overflow:auto;scrollbar-color:#aebbc2 #f2f5f6;scrollbar-width:thin}.matrix-scroll table{width:100%;border-collapse:collapse;table-layout:fixed;min-width:320px}caption{caption-side:bottom;text-align:left;color:var(--muted);font-size:12px;padding-top:12px}.matrix-scroll th{font-size:12px;font-weight:400;color:var(--muted);text-align:right;padding:4px 9px 10px;font-variant-numeric:tabular-nums}.matrix-scroll th:first-child{width:48px;text-align:left}.matrix-scroll td{border:1px solid var(--rule);padding:0}.matrix-scroll tbody th{padding:12px 8px 12px 0;color:var(--ink);vertical-align:middle}.matrix-cell{width:100%;min-height:68px;border:0;border-radius:0;text-align:right;display:grid;align-content:center;gap:3px;padding:9px 12px}.matrix-cell:hover{background:#f5f8f9}.matrix-cell[aria-pressed=true]{outline:2px solid var(--ink);outline-offset:-2px;background:var(--selected)}.matrix-count{font-variant-numeric:tabular-nums;font-size:20px;white-space:nowrap;line-height:1.4}.a,.a-key{color:var(--accent)}.b,.b-key{color:var(--b)}.matrix-count .separator{color:var(--muted);font-size:14px;padding:0 5px}.matrix-cell small{font-size:12px;line-height:1.5;color:var(--muted)}.matrix-cell.empty .matrix-count{color:var(--muted)}.matrix-foot{display:flex;justify-content:space-between;gap:16px;align-items:start;margin-top:14px}.matrix-foot .hint{display:flex;flex-wrap:wrap;gap:2px 12px;font-size:12px}.matrix-foot a{font-size:13px;text-decoration:underline;flex-shrink:0;min-height:30px}.total-cells{font-size:16px;white-space:nowrap;font-variant-numeric:tabular-nums}#case-summary{border-collapse:collapse;width:100%;min-width:480px;font-size:13px}#case-summary th{font-size:12px;color:var(--muted);font-weight:400;white-space:nowrap;text-align:left;padding:4px 10px 10px 0}#case-summary td{padding:13px 10px 13px 0;border-top:1px solid var(--rule);vertical-align:top}#case-summary .num{text-align:right}#case-summary td:last-child,#case-summary th:last-child{padding-right:0}.table-scroll th:first-child,.table-scroll td:first-child{position:sticky;left:0;background:var(--surface)}.summary-boundary{margin:12px 0}.summary-panel>button{font-size:13px;min-height:38px}
.cell-inspector{padding:22px 20px}.cell-inspector .panel-heading{margin-bottom:14px}.sample-state{font-size:12px;color:var(--muted);white-space:nowrap}.cell-counts{display:grid;grid-template-columns:1fr 1fr;gap:24px;border-bottom:1px solid var(--rule);padding:0 0 16px}.cell-counts>div{display:grid;gap:2px}.cell-counts span{font-size:13px}.cell-counts strong{font-size:36px;line-height:1.25;font-weight:400;font-variant-numeric:tabular-nums}.cell-counts small{font-size:12px;color:var(--muted);font-variant-numeric:tabular-nums}.cell-detail{padding:12px 0 16px;font-size:13px;line-height:1.8;overflow-wrap:anywhere}.cell-detail p+p{margin-top:5px;color:var(--muted);font-size:12px}.cell-detail a{display:inline-block;margin-top:8px;min-height:28px;text-decoration:underline}.records-controls{display:grid;grid-template-columns:minmax(0,1fr) 98px;gap:8px;margin-bottom:9px}.records-controls input,.records-controls select{min-width:0;font-size:13px}.records-table{border-collapse:collapse;width:100%;margin-top:8px;table-layout:fixed}.records-table th{font-size:12px;color:var(--muted);font-weight:400;text-align:left;padding:6px 6px 8px 0}.records-table th:first-child{width:60%}.records-table th:nth-child(2){width:25%;text-align:right}.records-table th:last-child{padding-right:0;text-align:right}.records-table td{border-top:1px solid var(--rule);vertical-align:middle;padding:2px 6px 2px 0;font-variant-numeric:tabular-nums}.records-table td:last-child{text-align:right;padding-right:0;font-size:12px}.event-button{display:block;width:100%;min-height:48px;padding:7px 0;border:0;text-align:left;background:transparent;overflow-wrap:anywhere;font-size:13px}.event-button time{display:block;color:var(--muted);font-size:12px}.event-button[aria-pressed=true]{color:var(--accent)}.record-mag{text-align:right;font-size:14px}.record-mag small{display:block;font-size:11px;color:var(--muted)}.records-pagination{display:flex;justify-content:space-between;gap:8px;align-items:center;margin-top:10px}.records-pagination button{font-size:12px;min-height:36px;padding:6px 9px}.records-empty{font-size:13px;color:var(--muted);padding:20px 0}.record-fields{border-top:1px solid var(--rule);margin:14px 0;padding-top:12px}.record-fields summary{font-size:13px;cursor:pointer;overflow-wrap:anywhere}.record-fields dl{margin:12px 0;display:grid;grid-template-columns:88px minmax(0,1fr);gap:5px 12px;font-size:12px}.record-fields dt{color:var(--muted)}.record-fields dd{margin:0;overflow-wrap:anywhere;font-variant-numeric:tabular-nums}.record-fields a{font-size:13px;text-decoration:underline}#records-export{margin-top:14px;width:100%;font-size:13px}.records-boundary{font-size:12px;margin-top:10px}
.bottom-layout{margin-top:var(--gap);display:grid;gap:var(--gap)}.audit-panel{padding:20px 22px}#audit-content{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:0 24px}.audit-row{padding:11px 0;border-top:1px solid var(--rule);min-width:0}.audit-row>summary{display:flex;justify-content:space-between;gap:12px;align-items:baseline;cursor:pointer;min-height:30px;font-size:13px}.audit-row>summary strong{font-weight:500}.audit-row>summary span{font-variant-numeric:tabular-nums;color:var(--muted);font-size:12px}.audit-row p{font-size:12px;color:var(--muted);margin-top:7px}.audit-row code{display:block;margin-top:7px;font-size:11px;overflow-wrap:anywhere}.audit-row a{display:inline-block;font-size:13px;text-decoration:underline;margin-top:8px}.evidence-panel{display:grid;grid-template-columns:minmax(0,1fr) minmax(230px,340px);gap:14px 24px;border-top:1px solid var(--rule);border-bottom:1px solid var(--rule);padding:24px 0}.evidence-panel p{margin-top:7px;font-size:13px;color:var(--muted);overflow-wrap:anywhere}.evidence-panel h2{font-size:17px}.evidence-actions{display:flex;justify-content:flex-end;align-items:start;gap:16px}.evidence-actions>button{white-space:nowrap}.evidence-actions details{min-width:0;max-width:230px}.evidence-actions summary{font-size:13px;cursor:pointer;min-height:42px;display:flex;align-items:center}.evidence-actions code{font-size:11px;overflow-wrap:anywhere}.method-note{margin:28px 0 24px}.method-note h2{font-size:18px}.method-note p{max-width:88ch;color:var(--muted);margin:8px 0 12px;font-size:13px}.method-note a{font-size:13px;text-decoration:underline}footer{display:flex;justify-content:space-between;color:var(--muted);font-size:12px;gap:24px;padding:20px 0;border-top:1px solid var(--rule)}
@media(min-width:1600px){.research-layout{grid-template-columns:minmax(0,1fr) 380px}.matrix-cell{min-height:76px}.canvas{padding:40px}.rail{padding-top:40px}}
@media(max-width:1240px){.canvas{padding:24px}.rail{width:176px;padding-inline:16px}.canvas{margin-left:176px}.research-layout{grid-template-columns:minmax(0,1fr) 310px;gap:20px}.panel{padding:18px}.protocol-toolbar{gap:16px;grid-template-columns:minmax(150px,1fr) minmax(150px,1fr)}.protocol-toolbar>.checkbox{grid-column:1/-1;min-height:24px}.view-controls label{font-size:11px}.view-controls select{max-width:110px}.panel-heading{flex-wrap:wrap}.cell-inspector .panel-heading{flex-wrap:nowrap}.finding{font-size:18px}.matrix-cell{padding:9px}.wide-field{grid-column:span 3}}
@media(max-width:1050px){.rail{display:none}.canvas{margin-left:0}.mobile-bar{display:flex;align-items:center;justify-content:space-between;padding:8px 24px;border-bottom:1px solid var(--rule);min-height:56px;background:var(--surface)}.mobile-bar .brand{font-size:18px}.mobile-bar details{position:relative}.mobile-bar summary{cursor:pointer;min-height:40px;display:flex;align-items:center}.mobile-bar nav{position:absolute;z-index:10;right:0;top:44px;width:200px;border:1px solid var(--rule);background:var(--surface);padding:12px;display:grid}.mobile-bar nav a{min-height:44px;display:flex;align-items:center}.research-layout{grid-template-columns:minmax(0,1fr) 310px}.page-heading{gap:16px}.actions{gap:6px}.actions>button,.file-button{padding-inline:11px}.protocol-fields{grid-template-columns:repeat(2,minmax(0,1fr))}.wide-field{grid-column:span 2}.recovery-bar{align-items:start}}
@media(max-width:800px){.research-layout{grid-template-columns:1fr}.cell-inspector{max-width:none}.cell-inspector .panel-heading{flex-wrap:wrap}.records-table th:first-child{width:65%}.cell-counts{max-width:440px}.records-controls{grid-template-columns:minmax(0,1fr) 120px}.records-table{font-size:14px}.evidence-panel{grid-template-columns:1fr}.evidence-actions{justify-content:flex-start}.view-controls{margin-left:auto}.record-fields dl{grid-template-columns:130px minmax(0,1fr)}}
@media(max-width:600px){.canvas{padding:20px 16px}.mobile-bar{padding:8px 16px}.page-heading{align-items:start;flex-wrap:wrap;margin-bottom:18px}h1{font-size:24px}.page-heading p{font-size:14px}.actions{width:100%;flex-wrap:wrap}.actions>button,.file-button{min-height:44px;font-size:14px}.actions .primary{margin-left:auto}.protocol-toolbar{grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:12px;padding:14px}.protocol-toolbar>label:not(.checkbox){display:block;white-space:normal;font-size:13px}.protocol-toolbar select{margin-top:5px}.protocol-toolbar>.checkbox{font-size:13px;min-height:34px}.protocol-fields{padding:8px 14px 16px;grid-template-columns:1fr;gap:14px}.wide-field{grid-column:auto}.protocol-fields input,.protocol-fields select,.protocol-fields textarea{font-size:16px;min-height:44px}.protocol-toolbar select{font-size:16px;min-height:44px}#protocol-details>summary{padding:12px 14px;display:block}#protocol-preview{display:block;text-align:left;margin-top:5px;font-size:12px}.execution-status{display:block;margin:12px 0 16px}.result-state{display:inline-block;margin-top:6px}.panel{padding:18px 14px}.panel-heading{gap:12px}.view-controls{margin-left:0;width:100%;gap:16px;display:grid;grid-template-columns:minmax(0,1fr) 82px}.view-controls select{width:100%;max-width:none;font-size:14px;min-height:44px}.view-controls label{font-size:12px}.finding{font-size:18px;margin-bottom:14px}.matrix-scroll table{min-width:292px}.matrix-scroll th:first-child{width:42px}.matrix-cell{padding:8px 6px;min-height:64px}.matrix-count{font-size:18px}.matrix-count .separator{padding:0 3px}.matrix-cell small{font-size:11px}.matrix-foot{display:block}.matrix-foot a{display:inline-flex;align-items:center;min-height:44px;margin-top:4px}.research-layout,.results-column,.bottom-layout{gap:16px}.bottom-layout{margin-top:16px}.recovery-bar{display:block}.recovery-bar>div{margin-top:8px}.recovery-bar button{min-height:44px}.records-controls input,.records-controls select{font-size:16px;min-height:44px}.records-pagination button{min-height:44px}.summary-panel>button{min-height:44px}.audit-row>summary{min-height:44px}#audit-content{grid-template-columns:1fr}.evidence-panel{padding-block:20px}.evidence-actions{flex-wrap:wrap}.evidence-actions>button{min-height:44px}.method-note{margin-top:24px}footer{display:block}footer span{display:block;margin-top:6px}}
@media(prefers-reduced-motion:reduce){button,.file-button{transition:none}}
@media(forced-colors:active){.matrix-cell[aria-pressed=true]{outline:2px solid Highlight}.a,.b,.a-key,.b-key{color:CanvasText}.primary{border:2px solid ButtonText}}
@media print{body{background:white}.rail,.mobile-bar,.protocol-panel,.actions,.records-controls,.records-pagination,.recovery-bar,.method-note,.matrix-foot a,.evidence-actions>button,#download-grid,#records-export{display:none!important}.canvas{margin:0;padding:0}.page-heading{margin-bottom:16px}.research-layout,.bottom-layout,.results-column{display:block}.panel{border:0;border-top:1px solid #aaa;border-radius:0;padding:16px 0;margin-top:12px;break-inside:avoid}.cell-inspector{break-inside:auto}.matrix-scroll,.table-scroll{overflow:visible}.matrix-scroll table,#case-summary{min-width:0}.matrix-cell{min-height:48px}.cell-counts{max-width:440px}button{color:inherit;background:white}footer{margin-top:24px}.evidence-panel{display:block}.evidence-actions{display:block}}


/* DOM task order: matrix, record inspector, cross-case report. */
.research-layout{grid-template-areas:"matrix inspector" "summary inspector"}.results-column{display:contents}.matrix-panel{grid-area:matrix}.cell-inspector{grid-area:inspector}.summary-panel{grid-area:summary}
@media(max-width:800px){.research-layout{grid-template-areas:"matrix" "inspector" "summary"}}
@media print{.research-layout,.results-column{display:block}}