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a,.link{color:var(--accent);text-decoration:none;border-bottom:1px solid var(--accent-border);transition:border-color var(--transition),color var(--transition)}.prose a:hover,.link:hover{color:var(--accent-hover);border-bottom-color:var(--accent)}.nav{position:sticky;top:0;z-index:50;background:color-mix(in srgb,var(--bg) 86%,transparent);backdrop-filter:saturate(180%) blur(8px);border-bottom:1px solid var(--border)}.nav-inner{display:flex;align-items:center;justify-content:space-between;height:var(--nav-height)}.nav-brand{font-family:var(--font-serif);font-weight:600;font-size:1.15rem;letter-spacing:-.01em;color:var(--text-strong)}.nav-links{display:flex;gap:clamp(.6rem,2.4vw,1.6rem);align-items:center}.nav-link{position:relative;font-size:.93rem;font-weight:500;color:var(--text-muted);padding:.4rem 0;transition:color var(--transition)}.nav-link:hover{color:var(--text)}.nav-link.active{color:var(--accent)}.nav-link.active:after{content:"";position:absolute;left:0;right:0;bottom:-1px;height:2px;background:var(--accent);border-radius:2px}.site-footer{flex-shrink:0;border-top:1px solid var(--border);background:var(--bg-subtle);padding-block:var(--sp-6)}.site-footer .container{display:flex;flex-direction:column;align-items:center;gap:var(--sp-3);text-align:center}.footer-copy{font-size:var(--fs-meta);color:var(--text-faint)}.social{display:flex;flex-wrap:wrap;gap:var(--sp-3);align-items:center}.social a{display:inline-flex;align-items:center;justify-content:center;width:38px;height:38px;border:1px solid var(--border-strong);border-radius:var(--radius-pill);color:var(--text-muted);transition:color var(--transition),border-color var(--transition),background var(--transition),transform var(--transition)}.social a:hover{color:var(--accent);border-color:var(--accent);background:var(--accent-soft);transform:translateY(-1px)}.social svg{width:18px;height:18px}.section{margin-top:var(--sp-8)}.section-head{display:flex;align-items:baseline;justify-content:space-between;gap:var(--sp-4);margin-bottom:var(--sp-4);padding-bottom:var(--sp-2);border-bottom:1px solid var(--border)}.section-title{font-size:var(--fs-h2);font-weight:600}.section-link{font-family:var(--font-sans);font-size:var(--fs-meta);font-weight:500;color:var(--accent)}.section-link:hover{color:var(--accent-hover)}.btn-row{display:flex;flex-wrap:wrap;gap:var(--sp-2);margin-top:var(--sp-3)}.btn{display:inline-flex;align-items:center;gap:.4rem;font-family:var(--font-sans);font-size:var(--fs-small);font-weight:500;line-height:1;color:var(--text-muted);background:var(--bg);border:1px solid var(--border-strong);border-radius:var(--radius-sm);padding:.46rem .7rem;cursor:pointer;transition:color var(--transition),border-color var(--transition),background var(--transition)}.btn:hover{color:var(--accent);border-color:var(--accent);background:var(--accent-soft)}.btn svg{width:14px;height:14px}.btn-primary{color:#fff;background:var(--accent);border-color:var(--accent)}.btn-primary:hover{color:#fff;background:var(--accent-hover);border-color:var(--accent-hover)}.hero{display:grid;grid-template-columns:auto 1fr;gap:var(--sp-6);align-items:center}.hero-photo{width:150px;height:auto;border-radius:var(--radius);border:1px solid var(--border);box-shadow:var(--shadow-md)}.hero-name{font-size:var(--fs-hero);margin-bottom:var(--sp-2)}.hero-subtitle{font-family:var(--font-sans);font-size:1.02rem;color:var(--text-muted);margin-bottom:var(--sp-4)}.visually-hidden{position:absolute;width:1px;height:1px;padding:0;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap;border:0}:focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:2px}@media(max-width:640px){.hero{grid-template-columns:1fr;gap:var(--sp-4);text-align:left}.hero-photo{width:110px}.nav-brand{font-size:1.05rem}.nav-link{font-size:.85rem}}.intro{margin-top:var(--sp-6)}.prose{color:var(--text)}.prose p{margin-bottom:var(--sp-4)}.prose ul,.prose ol{margin:0 0 var(--sp-4);padding-left:1.3rem}.prose li{margin-bottom:var(--sp-1);line-height:1.6}.prose li::marker{color:var(--text-faint)}.prose h2,.prose h3,.prose h4{margin:var(--sp-6) 0 var(--sp-2);font-weight:600;color:var(--text-strong)}.prose h2{font-size:1.18rem}.prose h3{font-size:1.06rem}.prose h4{font-size:var(--fs-h3)}.prose strong{font-weight:600;color:var(--text-strong)}.prose img{border:1px solid var(--border);border-radius:var(--radius);margin:var(--sp-4) 0;box-shadow:var(--shadow-sm)}.prose code{font-family:ui-monospace,SFMono-Regular,Menlo,monospace;font-size:.88em;background:var(--bg-sunken);padding:.1em .35em;border-radius:4px}.pub-list,.patent-list,.proj-list{margin-top:var(--sp-2)}