:root{--scan-bg-primary: #eff2f9;--scan-bg-secondary: #ffffff;--scan-bg-card: #e4e8f1;--scan-text-primary: #1e293b;--scan-text-secondary: #6e7f8d;--scan-text-muted: #b5bfc6;--scan-border-light: #e4e8f1;--scan-border-medium: #b5bfc6;--shadow-1: -5px 5px 10px rgba(250, 251, 255, .8), 5px -5px 10px rgba(22, 27, 29, .15);--shadow-2: -5px 5px 10px rgba(250, 251, 255, .8), 5px -5px 10px rgba(22, 27, 29, .2);--shadow-3: -10px 10px 20px rgba(250, 251, 255, .85), 10px -10px 20px rgba(22, 27, 29, .16);--shadow-inner: inset 0 2px 6px rgba(22, 27, 29, .12)}*,*:before,*:after{box-sizing:border-box}html{background:var(--scan-bg-primary);color:var(--scan-text-primary);font-family:Inter,system-ui,sans-serif;-webkit-font-smoothing:antialiased;scroll-behavior:smooth}body{margin:0;min-height:100vh;background:radial-gradient(ellipse at 0% 0%,rgba(255,255,255,.94) 0%,transparent 35%),radial-gradient(ellipse at 100% 100%,rgba(228,232,241,.82) 0%,transparent 38%),linear-gradient(180deg,#f5f7fb 0%,var(--scan-bg-primary) 50%,#eef2f8 100%)}a{color:inherit;text-decoration:none}.shell{width:min(1120px,calc(100vw - 32px));margin:0 auto}.site-header{position:sticky;top:0;z-index:50;padding:14px 0;background:#eff2f9c7;backdrop-filter:blur(16px);border-bottom:1px solid rgba(228,232,241,.6)}.site-header-inner{display:flex;align-items:center;justify-content:space-between;gap:16px}.site-logo{display:flex;align-items:center;gap:12px;font-weight:800;font-size:15px;letter-spacing:-.03em}.site-logo-mark{width:32px;height:32px;border-radius:10px;background:var(--scan-text-primary);display:flex;align-items:center;justify-content:center;box-shadow:var(--shadow-2);flex-shrink:0}.header-nav{display:flex;align-items:center;gap:8px;flex-wrap:wrap}.nav-chip{display:inline-flex;align-items:center;gap:6px;padding:9px 16px;border-radius:999px;font-size:13px;font-weight:600;color:var(--scan-text-secondary);transition:all .18s ease}.nav-chip:hover,.nav-chip.active{background:var(--scan-bg-secondary);color:var(--scan-text-primary);box-shadow:var(--shadow-1)}.neuro-card{background:var(--scan-bg-secondary);border-radius:1.5rem;box-shadow:var(--shadow-2);transition:transform .22s ease,box-shadow .22s ease}.neuro-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-3)}.neuro-card-flat{background:var(--scan-bg-secondary);border-radius:1.5rem;box-shadow:var(--shadow-1)}.neuro-pill-dark,.neuro-pill-light{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:13px 22px;border-radius:999px;border:0;font-size:13px;font-weight:700;cursor:pointer;transition:transform .22s ease,box-shadow .22s ease;box-shadow:var(--shadow-2)}.neuro-pill-dark:hover,.neuro-pill-light:hover{transform:translateY(-2px);box-shadow:var(--shadow-3)}.neuro-pill-dark{background:var(--scan-text-primary);color:#fff}.neuro-pill-light{background:var(--scan-bg-secondary);color:var(--scan-text-primary)}.eyebrow,.category-tag{display:inline-flex;align-items:center;padding:8px 13px;border-radius:999px;font-size:11px;font-weight:700;letter-spacing:.14em;text-transform:uppercase}.eyebrow{background:var(--scan-bg-secondary);box-shadow:var(--shadow-1);color:var(--scan-text-secondary)}.category-tag{color:var(--scan-text-secondary);background:var(--scan-bg-card);box-shadow:var(--shadow-inner)}.tiny{font-size:11px;font-weight:700;letter-spacing:.14em;text-transform:uppercase}.muted{color:var(--scan-text-secondary)}.prose{font-size:18px;line-height:1.85;color:var(--scan-text-primary);max-width:72ch}.prose h2{font-size:clamp(1.8rem,3vw,2.6rem);line-height:1.05;letter-spacing:-.045em;margin:2.4em 0 .7em}.prose h3{font-size:clamp(1.25rem,2vw,1.7rem);line-height:1.12;letter-spacing:-.035em;margin:1.8em 0 .65em}.prose p,.prose ul,.prose ol,.prose blockquote{margin:1em 0}.prose ul,.prose ol{padding-left:1.2em}.prose code{padding:.15em .42em;border-radius:.5rem;background:#e8edf6;font-size:.92em}.prose pre{overflow-x:auto;padding:18px;border-radius:1rem;background:#1e293b;color:#e2e8f0}.prose pre code{padding:0;background:transparent;color:inherit}.prose blockquote{padding-left:1em;border-left:3px solid var(--scan-border-medium);color:var(--scan-text-secondary)}@media(max-width:720px){.shell{width:min(1120px,calc(100vw - 20px))}.site-header-inner{align-items:flex-start;flex-direction:column}}