[data-tool-root="monitor-contrast-test"]{
  --gray-50:#fbfbfb;--gray-100:#f7f7f7;--gray-150:#f2f2f2;--gray-200:#ececec;--gray-300:#d9d9d9;--gray-500:#999;--gray-600:#666;--gray-700:#444;--gray-800:#222;--gray-900:#111;
  --bg-workspace:#f2f2f2;--bg-result:#fff;--text-primary:#111;--text-secondary:#444;--text-tertiary:#666;--border:#ddd;--border-strong:#222;--success:#276749;--danger:#a12424;--focus-ring:rgba(17,17,17,.35);
  box-sizing:border-box;width:100%;margin:0;padding:0 360px 40px 30px;color:var(--text-primary);font:15px/1.65 "Noto Sans SC",system-ui,-apple-system,"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif
}
[data-tool-root="monitor-contrast-test"] *,[data-tool-root="monitor-contrast-test"] *::before,[data-tool-root="monitor-contrast-test"] *::after{box-sizing:border-box}
[data-tool-root="monitor-contrast-test"] [hidden]{display:none!important}
[data-tool-root="monitor-contrast-test"] h1,[data-tool-root="monitor-contrast-test"] h2,[data-tool-root="monitor-contrast-test"] h3,[data-tool-root="monitor-contrast-test"] h4,[data-tool-root="monitor-contrast-test"] p,[data-tool-root="monitor-contrast-test"] dl,[data-tool-root="monitor-contrast-test"] dd{margin-top:0}
[data-tool-root="monitor-contrast-test"] .tool-page-header{padding:24px 0 18px}
[data-tool-root="monitor-contrast-test"] h1{margin-bottom:8px;font-size:30px;line-height:1.2;letter-spacing:-.5px;font-weight:800}
[data-tool-root="monitor-contrast-test"] .page-description{max-width:72ch;margin-bottom:0;color:var(--text-secondary);font-size:16px}
[data-tool-root="monitor-contrast-test"] .tool-page-divider{height:1px;background:var(--border);margin-bottom:24px}
[data-tool-root="monitor-contrast-test"] .workspace-grid{display:grid;grid-template-columns:minmax(0,.98fr) minmax(0,1.02fr);gap:16px;align-items:start}
[data-tool-root="monitor-contrast-test"] .input-panel,[data-tool-root="monitor-contrast-test"] .result-panel{display:flex;min-width:0;flex-direction:column;background:var(--bg-workspace);border:1px solid var(--border);border-radius:6px;padding:20px}
[data-tool-root="monitor-contrast-test"] .input-panel>h3,[data-tool-root="monitor-contrast-test"] .result-panel>h3{margin-bottom:16px;font-size:18px;line-height:1.35}
[data-tool-root="monitor-contrast-test"] .field-group+.field-group{margin-top:14px}
[data-tool-root="monitor-contrast-test"] .field-group--flush{margin-top:0!important}
[data-tool-root="monitor-contrast-test"] .field-label{display:block;margin-bottom:8px;font-weight:700}
[data-tool-root="monitor-contrast-test"] .field-help,[data-tool-root="monitor-contrast-test"] .field-error{margin:5px 0 0;font-size:13px}
[data-tool-root="monitor-contrast-test"] .field-help{color:var(--text-tertiary)}
[data-tool-root="monitor-contrast-test"] .field-error{color:var(--danger)}
[data-tool-root="monitor-contrast-test"] .field-row{display:grid;gap:14px;margin-top:14px}
[data-tool-root="monitor-contrast-test"] .field-row--two{grid-template-columns:repeat(2,minmax(0,1fr))}
[data-tool-root="monitor-contrast-test"] .segmented{display:grid;gap:1px;padding:1px;background:var(--gray-300);border:1px solid var(--gray-300);border-radius:10px;overflow:hidden}
[data-tool-root="monitor-contrast-test"] .segmented--two{grid-template-columns:repeat(2,minmax(0,1fr))}
[data-tool-root="monitor-contrast-test"] .segmented--three{grid-template-columns:repeat(3,minmax(0,1fr))}
[data-tool-root="monitor-contrast-test"] .segmented--four{grid-template-columns:repeat(4,minmax(0,1fr))}
[data-tool-root="monitor-contrast-test"] .segmented__item{position:relative;min-width:0;min-height:48px;padding:10px 11px;border:0;border-radius:0;background:#fff;color:var(--text-primary);font:inherit;font-weight:700;line-height:1.3;text-align:center;cursor:pointer;overflow-wrap:anywhere;transition:background-color .15s ease,color .15s ease}
[data-tool-root="monitor-contrast-test"] .segmented__item:hover{background:var(--gray-100)}
[data-tool-root="monitor-contrast-test"] .segmented__item:active{background:var(--gray-200)}
[data-tool-root="monitor-contrast-test"] .segmented__item.is-active{background:var(--gray-900);color:#fff}
[data-tool-root="monitor-contrast-test"] .segmented--compact .segmented__item{padding-left:6px;padding-right:6px;font-size:14px}
[data-tool-root="monitor-contrast-test"] button:focus-visible,[data-tool-root="monitor-contrast-test"] input:focus-visible,[data-tool-root="monitor-contrast-test"] [tabindex]:focus-visible,[data-tool-root="monitor-contrast-test"] summary:focus-visible,[data-tool-root="monitor-contrast-test"] a:focus-visible{outline:3px solid var(--focus-ring);outline-offset:2px}
[data-tool-root="monitor-contrast-test"] .measurement-panel{margin-top:16px;padding:16px;border:1px solid var(--border);border-radius:6px;background:#fff}
[data-tool-root="monitor-contrast-test"] .measurement-panel h4{margin-bottom:12px;font-size:16px}
[data-tool-root="monitor-contrast-test"] .measurement-grid{display:grid;grid-template-columns:minmax(0,.8fr) minmax(0,1.2fr);gap:14px;align-items:start}
[data-tool-root="monitor-contrast-test"] .number-input{display:block;width:100%;min-height:44px;padding:9px 11px;border:1px solid var(--border-strong);border-radius:6px;background:#fff;color:var(--text-primary);font:inherit;font-variant-numeric:tabular-nums}
[data-tool-root="monitor-contrast-test"] .number-input[aria-invalid="true"]{border-color:var(--danger)}
[data-tool-root="monitor-contrast-test"] .setup-checklist{margin:18px 0 0;padding:14px;border:1px solid var(--border);border-radius:6px;background:#fff}
[data-tool-root="monitor-contrast-test"] .setup-checklist legend{padding:0 6px;font-weight:700}
[data-tool-root="monitor-contrast-test"] .setup-checklist label{display:flex;align-items:flex-start;gap:9px;padding:7px 0;color:var(--text-secondary)}
[data-tool-root="monitor-contrast-test"] .setup-checklist input{flex:0 0 auto;width:18px;height:18px;margin:3px 0 0;accent-color:var(--gray-900)}
[data-tool-root="monitor-contrast-test"] .input-panel__footer{margin-top:18px;padding-top:16px;border-top:1px solid var(--border)}
[data-tool-root="monitor-contrast-test"] .button-row{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:8px}
[data-tool-root="monitor-contrast-test"] .btn{min-height:44px;padding:10px 14px;border:1px solid var(--border-strong);border-radius:6px;background:#fff;color:var(--text-primary);font:inherit;font-weight:700;cursor:pointer}
[data-tool-root="monitor-contrast-test"] .btn:hover{background:var(--gray-100)}
[data-tool-root="monitor-contrast-test"] .btn-primary{background:var(--gray-900);color:#fff}
[data-tool-root="monitor-contrast-test"] .btn-primary:hover{background:var(--gray-800)}
[data-tool-root="monitor-contrast-test"] .status-line{min-height:0;margin:10px 0 0;padding:10px 12px;border:1px solid var(--border);border-radius:6px;background:#fff;color:var(--text-secondary)}
[data-tool-root="monitor-contrast-test"] .status-line[data-tone="error"]{color:var(--danger);border-color:var(--danger)}
[data-tool-root="monitor-contrast-test"] .status-line[data-tone="success"]{color:var(--success);border-color:var(--success)}
[data-tool-root="monitor-contrast-test"] .result-surface{display:grid;gap:14px;background:var(--bg-result);border:1px solid var(--border);border-radius:6px;padding:16px}
[data-tool-root="monitor-contrast-test"] .contrast-stage{position:relative;display:grid;place-items:center;width:100%;height:300px;overflow:hidden;border:1px solid var(--border-strong);border-radius:6px;background:#111;touch-action:manipulation}
[data-tool-root="monitor-contrast-test"] .contrast-stage canvas{display:block;width:100%;height:100%}
[data-tool-root="monitor-contrast-test"] .stage-hint{position:absolute;left:50%;bottom:12px;transform:translateX(-50%);max-width:calc(100% - 24px);padding:6px 10px;border:1px solid rgba(255,255,255,.65);border-radius:999px;background:rgba(17,17,17,.72);color:#fff;font-size:13px;text-align:center;white-space:nowrap}
[data-tool-root="monitor-contrast-test"] .contrast-stage:fullscreen{width:100vw;height:100vh;border:0;border-radius:0}
[data-tool-root="monitor-contrast-test"] .contrast-stage:fullscreen .stage-hint{display:none}
[data-tool-root="monitor-contrast-test"] .fullscreen-controls{position:absolute;left:max(14px,env(safe-area-inset-left));right:max(14px,env(safe-area-inset-right));bottom:max(14px,env(safe-area-inset-bottom));display:flex;align-items:center;justify-content:space-between;gap:14px;padding:12px;border:1px solid rgba(255,255,255,.45);border-radius:6px;background:rgba(17,17,17,.86);color:#fff}
[data-tool-root="monitor-contrast-test"] .fullscreen-controls__text{display:grid;gap:2px}
[data-tool-root="monitor-contrast-test"] .fullscreen-controls__text span{font-size:13px;color:rgba(255,255,255,.78)}
[data-tool-root="monitor-contrast-test"] .fullscreen-button-row{display:flex;gap:7px}
[data-tool-root="monitor-contrast-test"] .fullscreen-button-row button{min-height:38px;padding:6px 11px;border:1px solid rgba(255,255,255,.6);border-radius:4px;background:#111;color:#fff;font:inherit;font-weight:700;cursor:pointer}
[data-tool-root="monitor-contrast-test"] .observation-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}
[data-tool-root="monitor-contrast-test"] .observation-block{min-width:0;padding:14px;border:1px solid var(--border);border-radius:6px;background:var(--gray-100)}
[data-tool-root="monitor-contrast-test"] .observation-heading{margin-bottom:10px}
[data-tool-root="monitor-contrast-test"] .observation-heading strong{font-size:16px}
[data-tool-root="monitor-contrast-test"] .observation-heading p{margin:3px 0 0;color:var(--text-secondary);font-size:13px;line-height:1.55}
[data-tool-root="monitor-contrast-test"] .result-summary{padding:16px;border:1px solid var(--border);border-radius:6px;background:var(--gray-100)}
[data-tool-root="monitor-contrast-test"] .result-summary__header{display:flex;align-items:center;justify-content:space-between;gap:12px}
[data-tool-root="monitor-contrast-test"] .result-summary__eyebrow{font-weight:800}
[data-tool-root="monitor-contrast-test"] .result-badge{flex:0 0 auto;padding:3px 9px;border:1px solid var(--border-strong);border-radius:999px;background:#fff;font-size:13px;font-weight:700}
[data-tool-root="monitor-contrast-test"] .result-primary{display:grid;gap:4px;margin-top:12px}
[data-tool-root="monitor-contrast-test"] .result-primary__value{font-size:clamp(28px,3.5vw,46px);line-height:1.12;font-variant-numeric:tabular-nums;overflow-wrap:anywhere}
[data-tool-root="monitor-contrast-test"] .result-primary__secondary{color:var(--text-secondary);font-weight:700}
[data-tool-root="monitor-contrast-test"] .result-data-band{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:1px;margin:14px 0 0;padding:1px;border:1px solid var(--border);border-radius:6px;overflow:hidden;background:var(--border)}
[data-tool-root="monitor-contrast-test"] .result-data-band>div{min-width:0;padding:10px 11px;background:#fff}
[data-tool-root="monitor-contrast-test"] .result-data-band dt{color:var(--text-tertiary);font-size:12px;font-weight:700}
[data-tool-root="monitor-contrast-test"] .result-data-band dd{margin:2px 0 0;font-weight:800;font-variant-numeric:tabular-nums;overflow-wrap:anywhere}
[data-tool-root="monitor-contrast-test"] .result-note{margin:14px 0 0;color:var(--text-secondary);font-size:13px}
[data-tool-root="monitor-contrast-test"] .interpretation-section,[data-tool-root="monitor-contrast-test"] .more-info-section,[data-tool-root="monitor-contrast-test"] .related-tools-section{margin-top:32px}
[data-tool-root="monitor-contrast-test"] .interpretation-section h2,[data-tool-root="monitor-contrast-test"] .more-info-section h2,[data-tool-root="monitor-contrast-test"] .related-tools-section h2{margin-bottom:14px;font-size:23px;line-height:1.3}
[data-tool-root="monitor-contrast-test"] .card-block{padding:18px 20px;border:1px solid var(--border);border-radius:6px;background:var(--gray-100)}
[data-tool-root="monitor-contrast-test"] .card-block p{margin-bottom:0;max-width:90ch}
[data-tool-root="monitor-contrast-test"] .details-stack{display:grid;gap:10px}
[data-tool-root="monitor-contrast-test"] .details-stack>details{border:1px solid var(--border);border-radius:6px;background:#fff}
[data-tool-root="monitor-contrast-test"] .details-stack>details>summary,[data-tool-root="monitor-contrast-test"] .related-tools-accordion>summary{padding:15px 18px;font-weight:800;cursor:pointer}
[data-tool-root="monitor-contrast-test"] .details-content{padding:0 18px 18px;border-top:1px solid var(--border)}
[data-tool-root="monitor-contrast-test"] .details-content h3{margin:16px 0 8px;font-size:18px}
[data-tool-root="monitor-contrast-test"] .details-content p{max-width:90ch;margin-bottom:10px}
[data-tool-root="monitor-contrast-test"] .details-content p:last-child{margin-bottom:0}
[data-tool-root="monitor-contrast-test"] .faq-list{display:grid;gap:8px;padding-top:14px}
[data-tool-root="monitor-contrast-test"] .faq-list details{border:1px solid var(--border);border-radius:6px;background:var(--gray-100)}
[data-tool-root="monitor-contrast-test"] .faq-list summary{padding:12px 14px;font-weight:700;cursor:pointer}
[data-tool-root="monitor-contrast-test"] .faq-list p{margin:0;padding:0 14px 14px}
[data-tool-root="monitor-contrast-test"] .related-tools-accordion{padding:0 20px;border:1px solid var(--border);border-radius:6px;background:var(--gray-100)}
[data-tool-root="monitor-contrast-test"] .related-links{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px;padding-bottom:20px}
[data-tool-root="monitor-contrast-test"] .related-link{display:flex;min-width:0;min-height:92px;flex-direction:column;justify-content:center;padding:14px 16px;border:1px solid var(--border);border-radius:6px;background:#fff;color:var(--text-primary);text-decoration:none}
[data-tool-root="monitor-contrast-test"] .related-link:hover{border-color:var(--border-strong);background:var(--gray-50)}
[data-tool-root="monitor-contrast-test"] .related-link strong{font-size:16px;line-height:1.4}
[data-tool-root="monitor-contrast-test"] .related-link span{margin-top:5px;color:var(--text-secondary);font-size:14px;line-height:1.55}
[data-tool-root="monitor-contrast-test"] .noscript-note{margin-top:24px;padding:14px;border:1px solid var(--border-strong);border-radius:6px;background:#fff}
@media(max-width:1180px) and (min-width:901px){
  [data-tool-root="monitor-contrast-test"] .workspace-grid{grid-template-columns:minmax(0,1fr)}
}
@media(max-width:900px){
  [data-tool-root="monitor-contrast-test"]{padding:0 8px 32px}
}
@media(max-width:720px){
  [data-tool-root="monitor-contrast-test"] .workspace-grid{grid-template-columns:minmax(0,1fr)}
  [data-tool-root="monitor-contrast-test"] .input-panel,[data-tool-root="monitor-contrast-test"] .result-panel{padding:14px}
  [data-tool-root="monitor-contrast-test"] .field-row--two,[data-tool-root="monitor-contrast-test"] .measurement-grid,[data-tool-root="monitor-contrast-test"] .observation-grid{grid-template-columns:minmax(0,1fr)}
  [data-tool-root="monitor-contrast-test"] .contrast-stage{height:320px}
  [data-tool-root="monitor-contrast-test"] .related-links{grid-template-columns:minmax(0,1fr)}
}
@media(max-width:430px){
  [data-tool-root="monitor-contrast-test"] h1{font-size:27px}
  [data-tool-root="monitor-contrast-test"] .segmented--four{grid-template-columns:repeat(2,minmax(0,1fr))}
  [data-tool-root="monitor-contrast-test"] .button-row{grid-template-columns:minmax(0,1fr)}
  [data-tool-root="monitor-contrast-test"] .btn{width:100%}
  [data-tool-root="monitor-contrast-test"] .result-data-band{grid-template-columns:repeat(2,minmax(0,1fr))}
  [data-tool-root="monitor-contrast-test"] .contrast-stage{height:260px}
  [data-tool-root="monitor-contrast-test"] .fullscreen-controls{align-items:stretch;flex-direction:column}
  [data-tool-root="monitor-contrast-test"] .fullscreen-button-row{display:grid;grid-template-columns:1fr 1fr}
  [data-tool-root="monitor-contrast-test"] .stage-hint{white-space:normal}
}
@media(max-width:340px){
  [data-tool-root="monitor-contrast-test"] .segmented--three,[data-tool-root="monitor-contrast-test"] .segmented--two{grid-template-columns:minmax(0,1fr)}
  [data-tool-root="monitor-contrast-test"] .result-data-band{grid-template-columns:minmax(0,1fr)}
}
@media(prefers-reduced-motion:reduce){
  [data-tool-root="monitor-contrast-test"] *{scroll-behavior:auto!important;animation:none!important;transition:none!important}
}