[data-tool-root="red-screen"]{--font-sans:"Noto Sans SC",system-ui,-apple-system,"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif;--space-xs:4px;--space-sm:8px;--space-md:12px;--space-lg:16px;--space-xl:24px;--space-2xl:32px;--space-3xl:48px;--gray-50:#fbfbfb;--gray-100:#f7f7f7;--gray-150:#f2f2f2;--gray-200:#eee;--gray-300:#ddd;--gray-400:#bbb;--gray-500:#999;--gray-600:#666;--gray-700:#444;--gray-800:#222;--gray-900:#111;--bg-canvas:#fff;--bg-module:#f7f7f7;--bg-workspace:#f2f2f2;--bg-result-surface:#fff;--bg-hover:#eee;--bg-active:#111;--text-primary:#111;--text-secondary:#444;--text-tertiary:#666;--text-on-dark:#fff;--border:#ddd;--border-strong:#222;--success:#276749;--danger:#a12424;--info:#315f9b;--warning:#9a5b00;--radius-sm:4px;--radius:6px;--radius-round:999px;box-sizing:border-box;width:100%;margin:0;padding:0 360px 48px 30px;color:var(--text-primary);background:#fff;font-family:var(--font-sans);font-size:15px;line-height:1.7}
[data-tool-root="red-screen"],[data-tool-root="red-screen"] *,[data-tool-root="red-screen"] *::before,[data-tool-root="red-screen"] *::after{box-sizing:border-box}
[data-tool-root="red-screen"] .tool-page-header{padding:24px 0 16px;border-bottom:1px solid var(--border)}
[data-tool-root="red-screen"] h1{margin:0;font-size:30px;line-height:1.2;letter-spacing:-.5px;font-weight:800}
[data-tool-root="red-screen"] .page-description{margin:4px 0 0;color:var(--text-tertiary)}
[data-tool-root="red-screen"] .tool-workspace{margin-top:16px}
[data-tool-root="red-screen"] .workspace-grid{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1.05fr);align-items:stretch;gap:16px}
[data-tool-root="red-screen"] .input-panel,[data-tool-root="red-screen"] .result-panel{display:flex;flex-direction:column;min-width:0;padding:16px 24px;background:var(--bg-workspace);border:1px solid var(--border);border-radius:var(--radius)}
[data-tool-root="red-screen"] .panel-label{margin:0 0 12px;font-size:16px;font-weight:800}
[data-tool-root="red-screen"] .controls-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}
[data-tool-root="red-screen"] .field{min-width:0}
[data-tool-root="red-screen"] .field.is-wide{grid-column:1/-1}
[data-tool-root="red-screen"] .field label{display:block;margin-bottom:4px;color:var(--text-secondary);font-size:13px;font-weight:700}
[data-tool-root="red-screen"] input,[data-tool-root="red-screen"] select,[data-tool-root="red-screen"] textarea{width:100%;min-height:42px;padding:9px 12px;color:var(--text-primary);background:#fff;border:1px solid var(--border);border-radius:var(--radius);font:inherit}
[data-tool-root="red-screen"] input[type="range"]{padding:0;accent-color:#111}
[data-tool-root="red-screen"] input[type="checkbox"]{width:44px;min-height:44px;accent-color:#111}
[data-tool-root="red-screen"] input[type="color"]{padding:4px}
[data-tool-root="red-screen"] input[type="file"]{height:auto;min-height:44px}
[data-tool-root="red-screen"] textarea{min-height:92px;resize:vertical}
[data-tool-root="red-screen"] input:focus-visible,[data-tool-root="red-screen"] select:focus-visible,[data-tool-root="red-screen"] textarea:focus-visible,[data-tool-root="red-screen"] button:focus-visible,[data-tool-root="red-screen"] summary:focus-visible{outline:2px solid #111;outline-offset:2px}
[data-tool-root="red-screen"] [aria-invalid="true"]{border-color:var(--danger)}
[data-tool-root="red-screen"] .field-help{margin:4px 0 0;color:var(--text-tertiary);font-size:13px}
[data-tool-root="red-screen"] .field-error{margin:4px 0 0;color:var(--danger);font-size:13px}
[data-tool-root="red-screen"] .tool-stage{position:relative;margin-top:16px;min-height:260px;background:#fff;border:1px solid var(--border);border-radius:var(--radius);overflow:hidden;background-size:contain;background-position:center;background-repeat:no-repeat}
[data-tool-root="red-screen"] .tool-stage canvas{display:block;width:100%;height:260px;touch-action:none}
[data-tool-root="red-screen"] .tool-stage:fullscreen{width:100vw;height:100vh;min-height:100vh;border:0;border-radius:0;background:#000}
[data-tool-root="red-screen"] .tool-stage:fullscreen canvas{width:100%;height:100%}
[data-tool-root="red-screen"] .button-row{display:flex;flex-wrap:wrap;gap:8px;margin-top:12px}
[data-tool-root="red-screen"] .btn{min-height:40px;min-width:80px;padding:0 16px;background:#fff;color:#111;border:1px solid var(--border);border-radius:var(--radius);font:600 14px/1 inherit;cursor:pointer}
[data-tool-root="red-screen"] .btn:hover{background:var(--bg-hover)}
[data-tool-root="red-screen"] .btn-primary{background:#111;color:#fff;border-color:#111}
[data-tool-root="red-screen"] .status-line{min-height:24px;margin-top:8px;color:var(--text-secondary)}
[data-tool-root="red-screen"] .status-line[data-tone="error"]{color:var(--danger)}
[data-tool-root="red-screen"] .status-line[data-tone="warning"]{color:var(--warning)}
[data-tool-root="red-screen"] .status-line[data-tone="success"]{color:var(--success)}
[data-tool-root="red-screen"] .result-summary{display:flex;flex:1;flex-direction:column;padding:20px;background:#fff;border:1px solid var(--border);border-left:4px solid var(--gray-500);border-radius:var(--radius)}
[data-tool-root="red-screen"] .result-summary[data-state="info"]{border-left-color:var(--info)}
[data-tool-root="red-screen"] .result-summary[data-state="warning"]{border-left-color:var(--warning)}
[data-tool-root="red-screen"] .result-summary[data-state="success"]{border-left-color:var(--success)}
[data-tool-root="red-screen"] .result-summary[data-state="danger"]{border-left-color:var(--danger)}
[data-tool-root="red-screen"] .result-summary__header{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:12px}
[data-tool-root="red-screen"] .result-summary__eyebrow{font-weight:800}
[data-tool-root="red-screen"] .result-badge{display:inline-flex;align-items:center;min-height:28px;padding:0 10px;white-space:nowrap;background:#111;color:#fff;border-radius:var(--radius-round);font-size:13px;font-weight:700}
[data-tool-root="red-screen"] .result-summary[data-state="info"] .result-badge{background:var(--info)}
[data-tool-root="red-screen"] .result-summary[data-state="warning"] .result-badge{background:var(--warning)}
[data-tool-root="red-screen"] .result-summary[data-state="success"] .result-badge{background:var(--success)}
[data-tool-root="red-screen"] .result-summary[data-state="danger"] .result-badge{background:var(--danger)}
[data-tool-root="red-screen"] .result-primary{margin-top:24px}
[data-tool-root="red-screen"] .result-primary__label{display:block;color:var(--text-secondary);font-weight:700}
[data-tool-root="red-screen"] .result-primary__value{display:block;margin-top:4px;font-size:clamp(30px,4vw,52px);line-height:1.1;font-variant-numeric:tabular-nums;overflow-wrap:break-word;word-break:normal}[data-tool-root="red-screen"] .result-primary__value[data-size="short"]{font-size:clamp(42px,5vw,64px)}[data-tool-root="red-screen"] .result-primary__value[data-size="medium"]{font-size:clamp(28px,3.4vw,48px)}[data-tool-root="red-screen"] .result-primary__value[data-size="long"]{font-size:clamp(26px,3.2vw,42px)}[data-tool-root="red-screen"] .result-primary__value[data-nowrap="true"]{white-space:nowrap}
[data-tool-root="red-screen"] .result-primary__secondary{display:block;margin-top:8px;color:var(--text-secondary)}
[data-tool-root="red-screen"] .result-data-band{display:grid;grid-template-columns:repeat(auto-fit,minmax(min(100%,150px),1fr));margin:20px 0 0;padding:8px 0;border-top:1px solid var(--border);border-bottom:1px solid var(--border)}
[data-tool-root="red-screen"] .result-data-band>div{padding:8px 12px;min-width:0}
[data-tool-root="red-screen"] .result-data-band>div+div{border-left:0}
[data-tool-root="red-screen"] .result-data-band dt{color:var(--text-tertiary);font-size:13px}
[data-tool-root="red-screen"] .result-data-band dd{margin:4px 0 0;font-weight:800;font-variant-numeric:tabular-nums;overflow-wrap:break-word;word-break:normal}
[data-tool-root="red-screen"] .result-summary__note{margin:16px 0 0;color:var(--text-secondary)}
[data-tool-root="red-screen"] .desc-section,[data-tool-root="red-screen"] .related-tools{margin-top:32px}
[data-tool-root="red-screen"] h2{margin:0 0 16px;padding-left:12px;border-left:3px solid #111;font-size:24px;line-height:1.3}
[data-tool-root="red-screen"] h3{margin:0 0 12px;font-size:18px}
[data-tool-root="red-screen"] .card-block{padding:16px 24px;background:var(--bg-module);border:1px solid var(--border);border-radius:var(--radius)}
[data-tool-root="red-screen"] .visual-card{background:#fff;border:1px solid var(--border);border-radius:var(--radius);padding:16px}
[data-tool-root="red-screen"] .visual-card svg{display:block;width:100%;height:auto;min-height:210px}
[data-tool-root="red-screen"] .visual-card p{margin:12px 0 0;color:var(--text-secondary)}
[data-tool-root="red-screen"] details.acc+details.acc,[data-tool-root="red-screen"] .faq-group+details.acc{border-top:1px solid var(--border)}
[data-tool-root="red-screen"] details.acc summary{display:flex;align-items:center;min-height:48px;font-size:16px;font-weight:800;cursor:pointer;list-style:none}
[data-tool-root="red-screen"] details.acc summary::-webkit-details-marker{display:none}
[data-tool-root="red-screen"] details.acc summary::after{content:"+";margin-left:auto;color:var(--text-tertiary);font-size:20px}
[data-tool-root="red-screen"] details.acc[open] summary::after{content:"−"}
[data-tool-root="red-screen"] .acc-panel{padding:0 0 16px}
[data-tool-root="red-screen"] .acc-panel p{margin:0 0 12px}
[data-tool-root="red-screen"] .source-list{margin:0;padding-left:20px}
[data-tool-root="red-screen"] .source-list a{color:#111}
[data-tool-root="red-screen"] .related-links{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:8px}
[data-tool-root="red-screen"] .related-links a{display:block;padding:12px;background:#fff;color:#111;border:1px solid var(--border);border-radius:var(--radius);text-decoration:none}
[data-tool-root="red-screen"] .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}
@media(max-width:900px){[data-tool-root="red-screen"]{padding:0 8px 40px}}
@media(max-width:720px){[data-tool-root="red-screen"] .workspace-grid,[data-tool-root="red-screen"] .controls-grid,[data-tool-root="red-screen"] .related-links{grid-template-columns:1fr;gap:8px}[data-tool-root="red-screen"] .input-panel,[data-tool-root="red-screen"] .result-panel{padding:14px 12px}[data-tool-root="red-screen"] .field.is-wide{grid-column:auto}}
@media(max-width:430px){[data-tool-root="red-screen"] h1{font-size:27px}[data-tool-root="red-screen"] h2{font-size:21px}[data-tool-root="red-screen"] .button-row{display:grid;grid-template-columns:1fr}[data-tool-root="red-screen"] .btn{min-height:44px;width:100%}[data-tool-root="red-screen"] .result-data-band{grid-template-columns:1fr}[data-tool-root="red-screen"] .result-data-band>div{padding:8px 0}[data-tool-root="red-screen"] .result-data-band>div+div{border-left:0;border-top:1px solid var(--border)}}
@media(prefers-reduced-motion:reduce){[data-tool-root="red-screen"] *{scroll-behavior:auto!important;animation:none!important;transition:none!important}}



/* v1.3 functional, visualization and lifecycle fixes */
[data-tool-root="red-screen"] .field[hidden]{display:none!important}
[data-tool-root="red-screen"] .control-value{display:inline-flex;align-items:center;min-height:26px;margin-top:6px;padding:0 8px;background:#fff;border:1px solid var(--border);border-radius:var(--radius-sm);color:var(--text-secondary);font-size:13px;font-weight:700;font-variant-numeric:tabular-nums}
[data-tool-root="red-screen"] .condition-summary{margin-top:16px;padding:12px 14px;background:#fff;border:1px solid var(--border);border-radius:var(--radius)}
[data-tool-root="red-screen"] .condition-summary__title{display:block;margin-bottom:8px;font-size:14px;font-weight:800;color:var(--text-primary)}
[data-tool-root="red-screen"] .condition-list{display:flex;flex-wrap:wrap;gap:6px}
[data-tool-root="red-screen"] .condition-chip{display:inline-flex;align-items:center;min-height:28px;padding:3px 9px;background:var(--gray-100);border:1px solid var(--border);border-radius:var(--radius-round);color:var(--text-secondary);font-size:13px;line-height:1.35;overflow-wrap:anywhere}
[data-tool-root="red-screen"] .condition-chip strong{margin-right:4px;color:var(--text-primary)}
[data-tool-root="red-screen"] .visual-card svg text{font-family:var(--font-sans)}
@media(max-width:430px){[data-tool-root="red-screen"] .condition-list{display:grid;grid-template-columns:1fr}[data-tool-root="red-screen"] .condition-chip{border-radius:var(--radius);align-items:flex-start}}


/* v1.4 audit remediation: integrated segmented controls and compact workspace */
[data-tool-root="red-screen"] .segmented-control{display:grid;grid-template-columns:repeat(auto-fit,minmax(86px,1fr));gap:1px;padding:1px;margin-top:2px;overflow:hidden;background:#d9d9d9;border:1px solid #d9d9d9;border-radius:10px}
[data-tool-root="red-screen"] .segmented-control__item{min-width:0;min-height:44px;padding:9px 10px;border:0;border-radius:0;background:#fff;color:#111;font:inherit;font-weight:700;line-height:1.3;cursor:pointer;overflow-wrap:anywhere}
[data-tool-root="red-screen"] .segmented-control__item:hover{background:#f7f7f7}
[data-tool-root="red-screen"] .segmented-control__item.is-active{background:#111;color:#fff}
[data-tool-root="red-screen"] .segmented-control__item:focus-visible{position:relative;z-index:2;outline:3px solid rgba(17,17,17,.28);outline-offset:-3px}
[data-tool-root="red-screen"] select[data-segmented-source]{position:absolute!important;width:1px!important;height:1px!important;min-height:0!important;padding:0!important;margin:-1px!important;overflow:hidden!important;clip:rect(0,0,0,0)!important;white-space:nowrap!important;border:0!important}
[data-tool-root="red-screen"] .input-panel>.button-row{margin-top:14px;padding-top:14px;border-top:1px solid var(--border)}
[data-tool-root="red-screen"] .status-line{padding:9px 11px;background:#fff;border:1px solid var(--border);border-radius:6px}
[data-tool-root="red-screen"] .result-panel{overflow:hidden}
[data-tool-root="red-screen"] .result-summary{min-width:0;overflow:hidden}
[data-tool-root="red-screen"] .result-data-band dd{overflow-wrap:anywhere}
[data-tool-root="red-screen"] .related-links a{min-height:74px;display:flex;align-items:center;font-weight:700}
@media(max-width:430px){[data-tool-root="red-screen"] .segmented-control{grid-template-columns:repeat(2,minmax(0,1fr))}}