:root{
  --bg:#f7f8fb;--ink:#111827;--muted:#5f6b7a;--card:#fff;--line:#dfe4ea;
  --brand:#1d4ed8;--brand2:#0f766e;--soft:#eef4ff;--soft2:#ecfdf5;--warn:#fff7ed;
  --radius:18px;--shadow:0 12px 35px rgba(17,24,39,.08);--max:1160px
}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;background:var(--bg);color:var(--ink);line-height:1.65}
a{color:var(--brand);text-decoration-thickness:1px;text-underline-offset:3px}a:hover{text-decoration-thickness:2px}
img{max-width:100%;height:auto}.wrap{max-width:var(--max);margin:auto;padding:0 22px}
.site-header{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.94);backdrop-filter:blur(10px);border-bottom:1px solid var(--line)}
.nav{display:flex;align-items:center;gap:22px;min-height:70px}.brand{display:flex;align-items:center;gap:10px;color:var(--ink);text-decoration:none;font-weight:850;letter-spacing:-.02em}.brandmark{width:34px;height:34px;border-radius:9px;background:linear-gradient(135deg,var(--brand),var(--brand2));display:grid;place-items:center;color:white;font-weight:900}
.navlinks{display:flex;gap:18px;margin-left:auto;align-items:center}.navlinks a{color:#334155;text-decoration:none;font-size:.95rem}.nav-cta,.btn{display:inline-flex;align-items:center;justify-content:center;border-radius:999px;padding:11px 17px;font-weight:750;text-decoration:none;border:1px solid transparent}.btn-primary,.nav-cta{background:var(--brand);color:#fff}.btn-secondary{background:#fff;border-color:var(--line);color:var(--ink)}.btn-ghost{background:var(--soft);color:var(--brand)}
.menu{display:none;background:none;border:0;font-size:1.5rem}
.hero{padding:72px 0 48px;background:radial-gradient(circle at 80% 0,#dbeafe 0,transparent 42%),linear-gradient(#fff,#f7f8fb)}
.eyebrow{text-transform:uppercase;font-size:.78rem;letter-spacing:.14em;font-weight:800;color:var(--brand2)}
h1,h2,h3{line-height:1.13;letter-spacing:-.035em}h1{font-size:clamp(2.45rem,5vw,4.7rem);max-width:930px;margin:.3em 0 .28em}h2{font-size:clamp(1.7rem,3vw,2.45rem);margin-top:2.1em}h3{font-size:1.28rem;margin-top:1.65em}.lead{font-size:1.22rem;color:#475569;max-width:820px}.cta-row{display:flex;flex-wrap:wrap;gap:12px;margin:26px 0}.micro{font-size:.88rem;color:var(--muted)}
.grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px}.grid-2{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px}.card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:22px;box-shadow:var(--shadow)}.card h3{margin-top:0}.card p:last-child{margin-bottom:0}
section{padding:34px 0}.content{max-width:850px;margin:auto}.content p,.content li{font-size:1.03rem}.content ul,.content ol{padding-left:1.35rem}
.note{padding:18px 20px;border-left:4px solid var(--brand);background:var(--soft);border-radius:12px}.warning{background:var(--warn);border-left-color:#f59e0b}.good{background:var(--soft2);border-left-color:var(--brand2)}
.table-wrap{overflow:auto;border:1px solid var(--line);border-radius:14px;background:#fff}table{border-collapse:collapse;width:100%;min-width:660px}th,td{padding:14px;text-align:left;border-bottom:1px solid var(--line);vertical-align:top}th{background:#f8fafc}
.kicker{display:inline-block;padding:5px 10px;border-radius:999px;background:var(--soft2);color:var(--brand2);font-weight:700;font-size:.82rem}
.breadcrumb{padding-top:20px;font-size:.9rem;color:var(--muted)}.breadcrumb a{color:inherit}
.decision{display:grid;grid-template-columns:1fr 1fr;gap:14px;margin:22px 0}.decision>div{padding:18px;border:1px solid var(--line);background:#fff;border-radius:14px}
.inline-cta{margin:28px 0;padding:24px;background:linear-gradient(135deg,#0f172a,#1e3a8a);color:white;border-radius:18px}.inline-cta h3{margin:.1em 0}.inline-cta p{color:#dbeafe}.inline-cta .btn{background:white;color:#0f172a}
.source-list{font-size:.94rem;background:#fff;border:1px solid var(--line);padding:18px 20px;border-radius:14px}
.related{background:#eef2f7}.related a{display:block;margin:.55rem 0}
footer{margin-top:48px;background:#0f172a;color:#cbd5e1;padding:42px 0}footer a{color:#e2e8f0}.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr;gap:28px}.footer-grid h3{color:#fff;margin-top:0}
.popup-backdrop{display:none;position:fixed;inset:0;background:rgba(15,23,42,.6);z-index:100}.popup{position:absolute;left:50%;top:50%;transform:translate(-50%,-50%);width:min(560px,calc(100% - 28px));background:#fff;border-radius:22px;padding:28px;box-shadow:0 25px 70px rgba(0,0,0,.28)}.popup-close{position:absolute;right:14px;top:12px;border:0;background:#eef2f7;width:34px;height:34px;border-radius:50%;font-size:1.1rem;cursor:pointer}.popup h2{margin:.2em 0;font-size:2rem}.popup ul{padding-left:1.2rem}
.tag{font-size:.78rem;background:#e2e8f0;color:#334155;padding:4px 8px;border-radius:999px;display:inline-block}
.hero-art{margin-top:34px;display:grid;grid-template-columns:repeat(5,1fr);gap:10px;align-items:end;height:90px}.hero-art span{border-radius:14px 14px 4px 4px;background:linear-gradient(#60a5fa,#1d4ed8)}.hero-art span:nth-child(1){height:38%}.hero-art span:nth-child(2){height:62%}.hero-art span:nth-child(3){height:48%}.hero-art span:nth-child(4){height:78%}.hero-art span:nth-child(5){height:100%;background:linear-gradient(#34d399,#0f766e)}
@media(max-width:820px){.grid,.grid-2,.footer-grid,.decision{grid-template-columns:1fr}.navlinks{display:none;position:absolute;top:70px;left:0;right:0;background:white;padding:18px 22px;border-bottom:1px solid var(--line)}.navlinks.open{display:grid}.menu{display:block;margin-left:auto}.hero{padding-top:46px}.popup{top:auto;bottom:0;transform:translateX(-50%);border-radius:22px 22px 0 0;padding:24px}.popup h2{font-size:1.55rem}}