:root{--accent: #1d4ed8;--accent-dark: #1e40af;--text: #1f2937;--text-soft: #6b7280;--bg: #ffffff;--bg-soft: #eff6ff;--line: #e5e7eb;--warn-bg: #fffbeb;--warn-line: #fde68a;--radius: 10px;--font: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif}*{box-sizing:border-box}html{font-family:var(--font);color:var(--text);background:var(--bg)}body{margin:0;line-height:1.65;font-size:17px}a{color:var(--accent);text-underline-offset:2px}a:hover{color:var(--accent-dark)}:focus-visible{outline:3px solid var(--accent);outline-offset:2px;border-radius:3px}img{max-width:100%;height:auto;border-radius:var(--radius)}.wrap{max-width:760px;margin:0 auto;padding:0 20px}.wrap-wide{max-width:1040px;margin:0 auto;padding:0 20px}.site-header{border-bottom:1px solid var(--line);background:var(--bg)}.site-header .inner{display:flex;align-items:center;justify-content:space-between;gap:16px;padding:14px 0;flex-wrap:wrap}.brand{display:flex;align-items:center;gap:10px;text-decoration:none}.brand strong{font-size:1.25rem;color:var(--text);letter-spacing:-.01em}.brand svg{flex-shrink:0}.site-nav{display:flex;gap:18px;flex-wrap:wrap}.site-nav a{text-decoration:none;color:var(--text-soft);font-size:.95rem}.site-nav a:hover{color:var(--accent-dark)}.hero{background:var(--bg-soft);border-bottom:1px solid var(--line)}.hero .inner{padding:44px 0}.hero h1{margin:0 0 10px;font-size:clamp(1.6rem,4vw,2.3rem);letter-spacing:-.02em}.hero p{margin:0;color:var(--text-soft);max-width:60ch}.card-grid{display:grid;gap:18px;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));padding:0;margin:24px 0;list-style:none}.card{border:1px solid var(--line);border-radius:var(--radius);padding:18px;background:var(--bg)}.card h3{margin:0 0 6px;font-size:1.05rem;line-height:1.4}.card h3 a{text-decoration:none;color:var(--text)}.card h3 a:hover{color:var(--accent-dark)}.card p{margin:0;color:var(--text-soft);font-size:.92rem}.card .meta{display:block;margin-top:10px;color:var(--text-soft);font-size:.8rem}.article-head{margin:36px 0 8px}.article-head h1{font-size:clamp(1.5rem,4vw,2.1rem);line-height:1.25;letter-spacing:-.02em;margin:0 0 10px}.article-meta{color:var(--text-soft);font-size:.9rem;margin-bottom:20px}.article-body{font-size:1.05rem}.article-body h2{margin-top:2em;letter-spacing:-.01em}.article-body table{border-collapse:collapse;width:100%;display:block;overflow-x:auto;font-size:.95rem}.article-body th,.article-body td{border:1px solid var(--line);padding:8px 12px;text-align:left}.article-body th{background:var(--bg-soft)}.article-body blockquote{border-left:4px solid var(--accent);margin:1.2em 0;padding:4px 18px;color:var(--text-soft);background:var(--bg-soft);border-radius:0 var(--radius) var(--radius) 0}.article-body img{display:block;margin:1.4em auto}.article-body figure{margin:1.6em 0}.article-body figure img{margin:0 auto}.article-body figcaption{color:var(--text-soft);font-size:.85rem;margin-top:8px;text-align:center}.disclosure{background:var(--warn-bg);border:1px solid var(--warn-line);border-radius:var(--radius);padding:12px 16px;font-size:.88rem;color:#78716c;margin:20px 0}.aff-link{font-weight:600}.ad-slot{min-height:250px;margin:24px 0;display:flex;align-items:center;justify-content:center}.site-footer{border-top:1px solid var(--line);margin-top:56px;background:var(--bg-soft)}.site-footer .inner{padding:28px 0;color:var(--text-soft);font-size:.88rem;display:flex;flex-wrap:wrap;gap:10px 28px;justify-content:space-between}.site-footer nav{display:flex;gap:16px;flex-wrap:wrap}.site-footer a{color:var(--text-soft)}.prose{padding:28px 0 8px}.prose h1{letter-spacing:-.02em}.term-lede{font-size:1.12rem;color:var(--text);background:var(--bg-soft);border-left:4px solid var(--accent);border-radius:0 var(--radius) var(--radius) 0;padding:12px 18px;margin:18px 0 24px}.term-meta{color:var(--text-soft);font-size:.88rem;margin-bottom:8px}.term-meta a{color:var(--text-soft)}.letter-index{display:flex;flex-wrap:wrap;gap:8px;margin:20px 0;padding:0;list-style:none}.letter-index a{display:inline-block;min-width:34px;text-align:center;padding:5px 8px;border:1px solid var(--line);border-radius:6px;text-decoration:none;font-weight:600}.letter-index .empty{color:var(--line);border-style:dashed}.term-list{list-style:none;padding:0;margin:12px 0 28px;column-width:300px;column-gap:32px}.term-list li{margin:0 0 8px;break-inside:avoid}.term-list .def{color:var(--text-soft);font-size:.9rem}.chip-row{display:flex;flex-wrap:wrap;gap:8px;margin:16px 0;padding:0;list-style:none}.chip-row a{display:inline-block;padding:6px 12px;border:1px solid var(--line);border-radius:999px;text-decoration:none;font-size:.9rem;background:var(--bg)}.chip-row a:hover{border-color:var(--accent)}.related-block,.cta-block{border:1px solid 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