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var(--bg-card-solid));--ponceau-soft: color-mix(in oklch, var(--error-color) 22%, var(--bg-card-solid));--neg-ink: color-mix(in oklch, var(--text-primary) 86%, var(--bg-primary));--pos-ink: color-mix(in oklch, var(--error-color) 80%, var(--bg-primary));--xreact: var(--warning-color);--ok-ink: var(--success-color);--wash-ink: color-mix(in oklch, var(--text-secondary) 70%, var(--bg-primary));--hatch: color-mix(in oklch, var(--text-primary) 55%, var(--text-secondary));--plate-line: color-mix(in oklch, var(--text-primary) 78%, var(--text-secondary));--shape-wash: color-mix(in oklch, var(--text-secondary) 16%, transparent);--band-wash: color-mix(in oklch, var(--accent) 12%, transparent);--screen-dark: color-mix(in oklch, var(--text-primary) 88%, var(--bg-primary));--film: var(--bg-card-solid);--film-ink: color-mix(in oklch, var(--text-primary) 92%, var(--bg-primary));--sat-ink: var(--error-color);--ab-core: var(--bg-card-solid);--ab-tip: var(--accent);--header-h: 4.25rem;--rail-w: 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var(--border);border-radius:var(--radius-control);background:var(--bg-card-solid);box-shadow:var(--shadow-whisper);color:var(--text-primary);font-size:var(--text-xs);white-space:nowrap;pointer-events:none;transform:translate(-50%)}.wb .present-btn:hover:after,.wb .present-btn:focus-visible:after{display:block}.wb .hero{position:relative;display:grid;grid-template-columns:minmax(0,1.1fr) minmax(0,1fr);align-items:center;gap:var(--space-xl);min-height:calc(100svh - var(--header-h));padding-block:var(--space-xl) var(--space-3xl)}.wb .hero__copy{max-width:40rem}.wb .lede{max-width:36ch;font-size:var(--text-xl)}.wb .scroll-hint{position:absolute;left:0;bottom:var(--space-lg);display:flex;flex-direction:column;align-items:center;gap:var(--space-xs);width:calc((100% - var(--space-xl)) * 1.1 / 2.1);margin:0;color:var(--text-secondary);font-size:var(--text-sm);text-align:center}.wb .scroll-hint__line{display:block;width:1px;height:2.75rem;background:var(--text-secondary);transform-origin:top center;animation:wb-cue var(--duration-pulse) var(--ease-in-out) infinite}.wb .hero3d{--hp: 0;--mx: 0;--my: 0;position:relative;display:grid;place-items:center;height:min(70vh,36rem);perspective:1600px}.wb .hero3d__stage{position:relative;width:min(100%,23rem);aspect-ratio:4 / 5;transform-style:preserve-3d;transform:rotateX(calc(57deg - var(--hp) * 12deg + var(--my) * 4deg)) rotate(calc(-38deg + var(--hp) * 22deg + var(--mx) * 5deg))}.wb .h-layer{position:absolute;inset:0;border-radius:var(--radius-region);transform:translateZ(calc(var(--lz) * (62px + var(--hp) * 120px)));animation:wb-float var(--duration-ambient) var(--ease-in-out) infinite}.wb .h-layer--gel{--lz: 0;border:1px solid color-mix(in oklch,var(--accent) 45%,transparent);background:linear-gradient(to bottom,var(--gel-ink-strong) 0 13%,transparent 13%),var(--gel-ink);box-shadow:var(--shadow-whisper)}.wb .h-layer--mem{--lz: 1;border:1px solid var(--border-strong);background:color-mix(in oklch,var(--bg-card-solid) 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.h-band--i{left:53%;top:70%;opacity:.45}.wb .h-band--t1,.wb .h-band--t2,.wb .h-band--t3{top:38%;background:var(--text-primary)}.wb .h-band--t1{left:30%;opacity:.55}.wb .h-band--t2{left:53%;opacity:.9}.wb .h-band--t3{left:76%;opacity:.3}.wb .h-ladder{position:absolute;left:7%;top:18%;width:17%;height:48%;background:repeating-linear-gradient(to bottom,var(--marker-ink) 0 2px,transparent 2px 22%);opacity:.8}.wb .h-tag{position:absolute;right:5%;bottom:4%;font-family:var(--font-mono);font-size:var(--text-2xs);letter-spacing:.18em;color:var(--text-muted)}.wb .h-glow{position:absolute;top:34%;width:21%;height:10%;border-radius:50%;background:radial-gradient(closest-side,color-mix(in oklch,var(--accent) 70%,transparent),transparent);filter:blur(6px);animation:wb-glow var(--duration-pulse) var(--ease-in-out) infinite alternate}.wb .h-glow--1{left:28%;opacity:.55}.wb .h-glow--2{left:51%;animation-delay:calc(var(--stagger-step) * 6)}.wb .h-glow--3{left:74%;opacity:.32;animation-delay:calc(var(--stagger-step) * 12)}.wb .block,.wb .chapter{padding-top:var(--space-3xl)}.wb .chapter__head{margin-bottom:var(--space-xl)}.wb .table-wrap{margin:var(--space-lg) 0 var(--space-xl);border:1px solid var(--border);border-radius:var(--radius-container);overflow:hidden;background:var(--bg-card-solid);box-shadow:var(--shadow-whisper)}.wb table{width:100%;border-collapse:collapse;table-layout:fixed}.wb th,.wb td{padding:var(--space-sm) var(--space-md);border-bottom:1px solid var(--border);text-align:left;vertical-align:top;font-weight:400;font-size:var(--text-sm);overflow-wrap:anywhere}.wb tr:last-child td{border-bottom:0}.wb th{color:var(--text-secondary);font-size:var(--text-xs);background:var(--bg-secondary)}.wb .num-table td,.wb .num-table th{font-variant-numeric:tabular-nums}.wb .num-table td:not(:first-child),.wb .num-table th:not(:first-child){text-align:right}.wb .num-table b{color:var(--accent);font-weight:650}.wb .gloss,.wb .checks,.wb .rules{margin:0 0 var(--space-lg);padding:0;list-style:none}.wb .gloss li,.wb .checks li,.wb .rules li{position:relative;margin:0;padding-block:var(--space-xs);border-bottom:1px solid var(--border)}.wb .gloss strong,.wb .rules strong{color:var(--text-primary);font-weight:600}.wb .checks li{padding-inline-start:1.6rem}.wb .checks li:before{content:"";position:absolute;left:.2rem;top:calc(var(--space-xs) + .45em);width:.7rem;height:.38rem;border-left:1.5px solid var(--accent);border-bottom:1.5px solid var(--accent);transform:rotate(-45deg)}.wb .rules{counter-reset:rule}.wb .rules li{counter-increment:rule;padding-inline-start:2rem}.wb .rules li:before{content:counter(rule,decimal-leading-zero);position:absolute;left:0;top:calc(var(--space-xs) + .2em);font-family:var(--font-mono);font-size:var(--text-2xs);letter-spacing:.1em;color:var(--bio-cyan)}.wb .callout{margin:var(--space-xl) 0;padding:var(--space-md) var(--space-lg);border:1px solid var(--border);border-left:2px solid var(--warning-color);border-radius:var(--radius-container)}.wb .callout strong{color:var(--text-primary)}.wb .callout--small{margin:var(--space-lg) 0;padding:var(--space-sm) var(--space-md);font-size:var(--text-sm)}.wb .note{font-size:var(--text-sm);color:var(--text-secondary)}.wb .tool-cta{margin:var(--space-lg) 0;font-family:var(--font-display);font-size:var(--text-lg);line-height:var(--leading-snug)}.wb .tool-cta--soft{font-size:var(--text-base)}.wb .tool-cta a{color:var(--accent);text-decoration:underline;text-underline-offset:.18em;transition:var(--transition-colors)}.wb .tool-cta a:hover{color:var(--text-primary)}.wb .vignette{float:right;width:7.5rem;height:7.5rem;margin-left:var(--space-lg);opacity:.72}.wb .engraving{background-color:var(--engraving-ink);-webkit-mask-image:var(--engraving-src);mask-image:var(--engraving-src);-webkit-mask-repeat:no-repeat;mask-repeat:no-repeat;-webkit-mask-position:center;mask-position:center;-webkit-mask-size:contain;mask-size:contain}.wb 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.tl__line{display:block;width:100%;height:100%;background:var(--accent);transform-origin:left center}.wb .chain .is-here{color:var(--accent)}.wb .chain .is-here:before{border-color:var(--accent);background:var(--accent)}.wb .tag{display:inline-block;margin-left:var(--space-2xs);padding:0 var(--space-2xs);border:1px solid var(--accent);border-radius:var(--radius-control);color:var(--accent);font-family:var(--font-mono);font-size:var(--text-2xs);letter-spacing:.14em}.wb .year{display:block;margin-bottom:var(--space-2xs);color:var(--text-primary);font-family:var(--font-display);font-size:var(--text-lg);font-weight:600;font-variant-numeric:tabular-nums}.wb .tl li span{font-size:var(--text-sm)}.wb .route{display:grid;grid-template-columns:repeat(7,minmax(0,1fr));gap:var(--space-xs);margin:var(--space-lg) 0 var(--space-xl);padding:0;list-style:none;counter-reset:route}.wb .route li{position:relative;min-width:0}.wb .route 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var(--duration-slow) var(--ease-out-soft)}.wb .cast-res{fill:var(--gel-ink-strong)}.wb .cast-stack{fill:var(--gel-ink)}.wb .cast-overlay{fill:var(--bg-card-solid);stroke:var(--accent);stroke-width:1px;stroke-dasharray:3 3;vector-effect:non-scaling-stroke}.wb .cast-mesh{fill:url(#wb-hatch-fine);opacity:0;transform:none}.wb .cast-wells rect{fill:var(--bg-primary);stroke:var(--plate-line);stroke-width:1px;vector-effect:non-scaling-stroke;opacity:0;transition:opacity var(--duration-slow) var(--ease-out-soft)}.wb .cast-comb{transform:translateY(-150px);opacity:0;transition:transform var(--duration-slower) var(--ease-out-expo),opacity var(--duration-slow) var(--ease-out-soft)}.wb .cast-comb__body{fill:color-mix(in oklch,var(--text-primary) 72%,var(--bg-primary));stroke:var(--text-primary);stroke-width:1px;vector-effect:non-scaling-stroke}.wb .cast-lab,.wb .cast-lens{opacity:0;transition:opacity var(--duration-slow) var(--ease-out-soft)}.wb 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