:root{
 --ink:#101828;--muted:#667085;--paper:#fbfcfe;--card:#fff;--line:#e4e7ec;
 --accent:#6d4aff;--accent2:#8b5cf6;--soft:#f2efff;--dark:#0b1020;
 --shadow:0 14px 40px rgba(16,24,40,.08);--radius:18px;--max:1180px;
}
*{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;color:var(--ink);background:var(--paper);line-height:1.68}
a{color:var(--accent);text-decoration:none}a:hover{text-decoration:underline}
.wrap{width:min(var(--max),92vw);margin:auto}.topbar{background:var(--dark);color:#d0d5dd;font-size:.9rem;padding:.52rem 0;text-align:center}
header{position:sticky;top:0;z-index:30;background:rgba(251,252,254,.96);backdrop-filter:blur(12px);border-bottom:1px solid var(--line)}
.nav{display:flex;align-items:center;justify-content:space-between;gap:1rem;min-height:74px}
.brand{display:flex;align-items:center;gap:.7rem;font-weight:850;color:var(--ink);font-size:1.08rem}.mark{width:34px;height:34px;border-radius:10px;background:linear-gradient(135deg,var(--accent),#b692ff);display:grid;place-items:center;color:#fff;font-weight:900;box-shadow:var(--shadow)}
nav{display:flex;gap:1rem;align-items:center}.navlink{color:#344054;font-weight:700;font-size:.93rem}
.cta,.btn{display:inline-flex;align-items:center;justify-content:center;border-radius:12px;padding:.8rem 1.08rem;background:linear-gradient(135deg,var(--accent),var(--accent2));color:#fff;font-weight:850;box-shadow:0 8px 22px rgba(109,74,255,.22);border:0}
.cta:hover,.btn:hover{text-decoration:none;filter:brightness(.98)}.btn.secondary{background:#fff;color:var(--ink);border:1px solid var(--line);box-shadow:none}
.hero{padding:4.8rem 0 3.5rem;background:radial-gradient(circle at 88% 12%,#eee9ff 0,transparent 34%),linear-gradient(180deg,#fff,#f8f8ff)}
.eyebrow{display:inline-block;padding:.35rem .7rem;border-radius:999px;background:var(--soft);color:#5a3fe1;font-weight:850;font-size:.82rem;letter-spacing:.02em}
h1{font-size:clamp(2.25rem,6vw,4.8rem);line-height:1.02;letter-spacing:-.045em;margin:.85rem 0 1rem;max-width:900px}
h2{letter-spacing:-.02em}.lead{font-size:1.17rem;color:#475467;max-width:790px}.actions{display:flex;gap:.8rem;flex-wrap:wrap;margin-top:1.4rem}
.section{padding:3.2rem 0}.section.tight{padding:2.2rem 0}.grid{display:grid;grid-template-columns:repeat(3,1fr);gap:1rem}
.card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:1.35rem;box-shadow:0 8px 24px rgba(16,24,40,.04)}
.card h3{margin:.2rem 0 .55rem}.card p{color:#667085}.kicker{font-size:.8rem;text-transform:uppercase;letter-spacing:.08em;color:var(--accent);font-weight:850}
.breadcrumbs{font-size:.88rem;color:#667085;padding-top:1rem}.breadcrumbs a{color:#475467}
.article-head{padding:3.5rem 0 1.7rem}.article-head h1{font-size:clamp(2.15rem,5vw,4rem)}.meta{color:#667085;font-size:.93rem}
.content-shell{display:grid;grid-template-columns:minmax(0,820px) 290px;gap:2rem;align-items:start}
.prose h2{font-size:1.8rem;line-height:1.2;margin-top:2.4rem}.prose h3{font-size:1.23rem;margin-top:1.7rem}.prose p,.prose li{font-size:1.02rem;color:#344054}.prose ul,.prose ol{padding-left:1.3rem}
.sidebar{position:sticky;top:104px}.sidebox{background:#fff;border:1px solid var(--line);border-radius:18px;padding:1.15rem;margin-bottom:1rem;box-shadow:0 8px 24px rgba(16,24,40,.04)}.sidebox h3{margin:.1rem 0 .5rem}.sidebox p{font-size:.92rem;color:#667085}
.sidebar .btn{width:100%;text-align:center}.side-list a{display:block;padding:.55rem 0;border-bottom:1px solid #eef0f3;font-weight:700;color:#344054}
.callout{border-left:4px solid var(--accent);background:#f7f5ff;padding:1rem 1.2rem;border-radius:0 14px 14px 0;margin:1.4rem 0}
.notice{background:#fff8eb;border:1px solid #fedf89;color:#7a2e0e;padding:1rem 1.1rem;border-radius:14px;margin:1.2rem 0}
.table{overflow:auto;border:1px solid var(--line);border-radius:14px;background:#fff}table{width:100%;border-collapse:collapse}th,td{text-align:left;padding:.9rem;border-bottom:1px solid var(--line);vertical-align:top}th{background:#f8f9fb}
.monetize{margin:2rem 0;padding:1.35rem;border-radius:18px;background:var(--dark);color:#fff}.monetize p{color:#d0d5dd}.badge{display:inline-block;padding:.2rem .5rem;border-radius:999px;background:#ecfdf3;color:#067647;font-size:.78rem;font-weight:850}
.related{display:grid;grid-template-columns:repeat(2,1fr);gap:.8rem;margin:1.1rem 0 2.4rem}.related a{display:block;background:#fff;border:1px solid var(--line);padding:1rem;border-radius:14px;color:#344054;font-weight:750}
.category-hero{padding:3.6rem 0 2.2rem}.category-list{display:grid;grid-template-columns:repeat(2,1fr);gap:1rem}
footer{background:var(--dark);color:#98a2b3;margin-top:4rem;padding:2.6rem 0}.footgrid{display:grid;grid-template-columns:2fr 1fr 1fr;gap:2rem}footer a{color:#d0d5dd}.small{font-size:.88rem;color:#667085}
@media(max-width:960px){.content-shell{grid-template-columns:1fr}.sidebar{position:static}.sidebar .sidebox:first-child{display:grid;grid-template-columns:1fr auto;align-items:center;gap:1rem}.sidebar .btn{width:auto}}
@media(max-width:820px){.navlink{display:none}.grid,.category-list{grid-template-columns:1fr}.footgrid{grid-template-columns:1fr}.related{grid-template-columns:1fr}.hero{padding-top:3.2rem}.sidebar .sidebox:first-child{display:block}.sidebar .btn{width:100%}}