:root{--ink:#111827;--muted:#5f6877;--border:#e5e7eb;--purple:#6d28d9;--purple-dark:#4c1d95;--purple-soft:#faf5ff;--teal:#0f766e;--amber:#b45309;--max:1120px;--article:760px;--shadow:0 16px 42px rgba(17,24,39,.08);font-family:system-ui,-apple-system,Segoe UI,Roboto,Helvetica,Arial,sans-serif}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:radial-gradient(circle at 100% 0%,rgba(124,58,237,.08),transparent 28%),#fff;color:var(--ink)}
.wrap{max-width:var(--max);margin:0 auto;padding:22px 18px 64px}
header{display:flex;align-items:center;justify-content:space-between;gap:18px;padding-bottom:16px;border-bottom:1px solid var(--border)}
.brand{display:inline-flex;align-items:center;font-size:26px;font-weight:900;color:var(--ink);text-decoration:none;letter-spacing:-.4px}
nav{display:flex;flex-wrap:wrap;justify-content:flex-end;gap:12px 15px}
nav a{color:#1f2937;text-decoration:none;font-size:14px;font-weight:750}
nav a[aria-current="page"]{color:var(--purple)}
.hero{padding:64px 0 34px;max-width:900px;margin:0 auto;text-align:center}
.kicker,.issueMeta{margin:0 0 12px;color:var(--purple);font-size:13px;font-weight:900;letter-spacing:.1em;text-transform:uppercase}
h1{margin:0 0 18px;font-size:clamp(2.4rem,6vw,4.1rem);line-height:1.02;letter-spacing:-1.4px}
.lead{max-width:780px;margin:0;color:var(--muted);font-size:19px;line-height:1.72}
.hero .lead{margin-left:auto;margin-right:auto}
.section{padding:50px 0;border-top:1px solid #f0f1f4}
.section.alt{background:linear-gradient(180deg,var(--purple-soft),#fff)}
.inner{max-width:var(--max);margin:0 auto;padding:0 18px}
.sectionHead{max-width:800px;margin:0 auto 24px;text-align:center}
.sectionHead h2{margin:0 0 10px;font-size:34px;line-height:1.15;letter-spacing:-.6px}
.sectionHead p{margin:0;color:var(--muted);font-size:17px;line-height:1.72}
.issueCard{padding:28px;background:#fff;border:1px solid #ddd6fe;border-radius:24px;box-shadow:var(--shadow)}
.issueCard h2{margin:0 0 12px;font-size:30px;line-height:1.16;letter-spacing:-.5px}
.issueCard p{color:var(--muted);font-size:16px;line-height:1.72}
.actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:22px}
.btn{display:inline-flex;align-items:center;justify-content:center;min-height:46px;padding:12px 16px;border-radius:12px;border:1px solid #ddd6fe;background:#ede9fe;color:var(--purple-dark);font-weight:900;text-decoration:none}
.btn.primary{background:linear-gradient(135deg,var(--purple),#7c3aed);border-color:var(--purple);color:#fff}
.topicLine{display:flex;flex-wrap:wrap;justify-content:center;gap:10px;margin-top:18px}
.topicLine span{padding:9px 12px;border:1px solid var(--border);border-radius:999px;background:#fff;color:#4b5563;font-size:14px;font-weight:750}
.articleHero{max-width:900px;margin:0 auto;padding:58px 0 24px}
.articleHero .lead{max-width:820px}
.articleByline{display:flex;flex-wrap:wrap;gap:10px 16px;margin-top:20px;color:#6b7280;font-size:14px;font-weight:650}
.articleVisual{max-width:900px;margin:28px auto 0;padding:24px;border:1px solid #ddd6fe;border-radius:24px;background:linear-gradient(135deg,#faf5ff,#fff);box-shadow:var(--shadow)}
.evidenceChain{display:grid;grid-template-columns:repeat(5,minmax(0,1fr));gap:10px}
.evidenceChain div{position:relative;padding:18px 12px;border:1px solid #ddd6fe;border-radius:14px;background:#fff;text-align:center;font-size:14px;font-weight:850;color:#4c1d95}
.article{max-width:var(--article);margin:0 auto;padding:30px 18px 70px}
.article h2{margin:42px 0 13px;font-size:29px;line-height:1.2;letter-spacing:-.4px}
.article h3{margin:30px 0 10px;font-size:21px}
.article p,.article li{font-size:17px;line-height:1.82;color:#303846}
.article ul,.article ol{padding-left:23px}
.article li{margin:10px 0}
.article a{color:var(--purple-dark);font-weight:750}
.pullquote{margin:34px 0;padding:24px 26px;border-left:5px solid var(--purple);border-radius:0 18px 18px 0;background:var(--purple-soft);font-size:21px;line-height:1.55;font-weight:800;color:#312e81}
.model{display:grid;gap:12px;margin:24px 0}
.modelStep{display:grid;grid-template-columns:46px 1fr;gap:15px;padding:18px;border:1px solid var(--border);border-radius:16px;background:#fff}
.modelStep b{display:flex;width:40px;height:40px;align-items:center;justify-content:center;border-radius:12px;background:#ede9fe;color:var(--purple-dark)}
.modelStep strong{display:block;margin-bottom:5px;font-size:17px}
.modelStep p{margin:0;color:var(--muted);font-size:15px;line-height:1.65}
.boundary,.sourceBox,.cta{margin:34px 0;padding:24px;border-radius:20px}
.boundary{border:1px solid #fde68a;background:#fffbeb;color:#78350f}
.boundary p{margin:0;color:#78350f}
.sourceBox{border:1px solid var(--border);background:#f9fafb}
.sourceBox h2{margin-top:0}
.sourceBox li{font-size:15px}
.cta{border:1px solid #c4b5fd;background:linear-gradient(135deg,#f5f3ff,#fff)}
.cta h2{margin-top:0}
.cta p{color:var(--muted)}
@media(max-width:900px){.evidenceChain{grid-template-columns:1fr 1fr}.evidenceChain div:last-child{grid-column:1/-1}}
@media(max-width:720px){.wrap{padding:18px 14px 52px}header{align-items:flex-start;flex-direction:column}nav{justify-content:flex-start}.hero{padding-top:46px}.lead{font-size:17px}.sectionHead h2{font-size:29px}.issueCard{padding:20px}.article{padding-left:16px;padding-right:16px}.article p,.article li{font-size:16px}.evidenceChain{grid-template-columns:1fr}.evidenceChain div:last-child{grid-column:auto}}