.wu{--wu-measure: 720px;--wu-wide: 960px;max-width:var(--wu-measure);margin-inline:auto;padding:3.5rem 1.5rem 4rem}.wu-kicker{display:block;font-family:var(--font-family-mono);font-size:.75rem;letter-spacing:.08em;text-transform:uppercase;color:var(--color-teal);margin-bottom:.75rem}.wu-header h1{font-size:clamp(2rem,5vw,2.75rem);line-height:1.15;font-weight:600;letter-spacing:-.01em;margin-bottom:.75rem}.wu-byline{color:var(--color-text-2);font-size:.95rem;margin-bottom:1.5rem}.wu-actions{display:flex;flex-wrap:wrap;gap:.75rem;margin-top:1.5rem}.wu-callout,.wu-note,.wu-analogy{border:1px solid var(--color-border);border-radius:10px;padding:1rem 1.25rem;font-size:.95rem;line-height:1.65}.wu-callout{margin-top:2rem;background:var(--color-surface-2);border-left:4px solid var(--color-cyan)}.wu-note{margin:1.75rem 0;background:var(--color-surface)}.wu-note--key{border-left:4px solid var(--color-teal);background:var(--color-surface-2)}.wu-analogy{margin:0 0 1.75rem;background:var(--color-surface-2);font-family:var(--font-family-serif);font-size:1.05rem}.wu-note__label{font-family:var(--font-family-mono);font-size:.7rem;letter-spacing:.08em;text-transform:uppercase;color:var(--color-text-3);margin-bottom:.35rem}.wu-callout p+p,.wu-note p+p{margin-top:.5rem}.wu-summary{margin-top:2.5rem}.wu-lede{font-size:1.0625rem;line-height:1.75}.wu-stats{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:.75rem;margin:1.75rem 0 0}@media(max-width:640px){.wu-stats{grid-template-columns:1fr}}.wu-stat{border:1px solid var(--color-border);border-radius:10px;background:var(--color-surface);padding:1rem 1.1rem}.wu-stat dt{font-family:var(--font-family-mono);font-size:.7rem;letter-spacing:.06em;text-transform:uppercase;color:var(--color-text-3)}.wu-stat__value{font-family:var(--font-family-serif);font-size:1.9rem;font-weight:600;color:var(--color-teal);line-height:1.2;margin:.25rem 0 .35rem;font-variant-numeric:tabular-nums}.wu-stat__label{font-size:.85rem;line-height:1.45;color:var(--color-text-2)}.wu-toc{display:flex;flex-wrap:wrap;align-items:center;gap:.4rem;margin-top:1.5rem}.wu-toc__label{font-size:.8rem;color:var(--color-text-3);margin-right:.25rem}.wu-section{scroll-margin-top:5rem;margin-top:3.5rem;padding-top:2.5rem;border-top:1px solid var(--color-border)}.wu-section h2{font-size:clamp(1.45rem,3.4vw,1.85rem);line-height:1.25;font-weight:600;margin-bottom:1.25rem}.wu-secnum{color:var(--color-teal);margin-right:.15em}.wu-section h3{font-family:var(--font-family-serif);font-size:1.25rem;font-weight:600;line-height:1.3;margin:2.25rem 0 .9rem;scroll-margin-top:5rem}.wu-section p{font-size:1.0625rem;line-height:1.75;margin-bottom:1.1rem}.wu-section strong{font-weight:600}.wu a:not([class]){color:var(--color-teal);text-decoration:underline;text-decoration-color:color-mix(in srgb,var(--color-teal) 40%,transparent);text-underline-offset:2px}.wu a:not([class]):hover{text-decoration-color:var(--color-teal)}.wu code{font-family:var(--font-family-mono);font-size:.86em;background:var(--color-surface-2);border:1px solid var(--color-border);border-radius:4px;padding:.05em .3em;white-space:nowrap}.wu-table-wrap{overflow-x:auto;margin:1.5rem 0;border:1px solid var(--color-border);border-radius:10px;background:var(--color-surface)}.wu-table-wrap table{width:100%;border-collapse:collapse;font-size:.925rem;font-variant-numeric:tabular-nums}.wu-table-wrap th,.wu-table-wrap td{text-align:left;padding:.6rem .9rem;border-bottom:1px solid var(--color-border);vertical-align:top}.wu-table-wrap th{font-weight:600;background:var(--color-surface-2);white-space:nowrap}.wu-table-wrap tr:last-child td{border-bottom:0}.wu-figure{margin:2rem 0 2.25rem}@media(min-width:1040px){.wu-figure:not(.wu-figure--narrow){margin-inline:calc((var(--wu-measure) - var(--wu-wide)) / 2)}}.wu-figure--narrow{max-width:560px;margin-inline:auto}.wu-figure img{width:100%;height:auto;background:#fff;border:1px solid var(--color-border);border-radius:8px}.wu-figure--feature img{border-color:var(--color-teal)}.wu-figure figcaption{max-width:var(--wu-measure);margin:.75rem auto 0;font-size:.85rem;line-height:1.6;color:var(--color-text-2)}.wu-next{display:block;border:1px solid var(--color-border);border-radius:10px;background:var(--color-surface);padding:1.5rem 1.5rem 1.35rem;transition:border-color .3s,transform .3s}.wu-next:hover{border-color:var(--color-teal);transform:translateY(-2px)}.wu-next__title{display:block;font-family:var(--font-family-serif);font-size:1.3rem;font-weight:600;line-height:1.35;margin-bottom:.75rem}.wu-next__cta{display:inline-flex;align-items:center;gap:.4rem;font-size:.9rem;font-weight:600;color:var(--color-teal)}@media(max-width:480px){.wu{padding-top:2.5rem;padding-inline:1rem}.wu code{white-space:normal}}.wu .wu-callout p,.wu .wu-note p,.wu .wu-analogy p{font-size:inherit;line-height:inherit;margin-bottom:0}.wu .wu-callout p+p,.wu .wu-note p+p,.wu .wu-analogy p+p{margin-top:.5rem}.wu .wu-note .wu-note__label,.wu .wu-analogy .wu-note__label{font-family:var(--font-family-mono);font-size:.7rem;line-height:1.4;margin-bottom:.35rem}.wu-toc__link{font-size:.8rem;font-weight:500;color:var(--color-text-2);border:1px solid var(--color-border);background:var(--color-surface);border-radius:999px;padding:.25rem .75rem;transition:color .3s,border-color .3s}.wu-toc__link:hover{color:var(--color-teal);border-color:var(--color-teal)}.wu a[href^="https://doi.org"]{font-feature-settings:"calt" 0}