:root{--ink:#172033;--muted:#687184;--line:#e5e8ef;--paper:#fff;--wash:#f7f8fc;--accent:#5b45f7;--accent2:#edeaff;--success:#147a55;--radius:18px;--shadow:0 12px 34px rgba(23,32,51,.07)}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;color:var(--ink);background:var(--paper);font:16px/1.68 Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif}
a{color:var(--accent);text-decoration:none}a:hover{text-decoration:underline}.wrap{max-width:1160px;margin:auto;padding:0 22px}
.site-header{position:sticky;top:0;z-index:30;background:rgba(255,255,255,.95);backdrop-filter:blur(12px);border-bottom:1px solid var(--line)}
.header-inner{min-height:72px;display:flex;align-items:center;gap:24px}.brand{font-size:1.32rem;font-weight:900;letter-spacing:-.035em;color:var(--ink);white-space:nowrap}.brand em{font-style:normal;color:var(--accent)}
.main-nav{display:flex;gap:18px;margin-left:auto;align-items:center}.main-nav>a:not(.button){font-size:.93rem;color:var(--ink);font-weight:650}
.button{display:inline-flex;align-items:center;justify-content:center;border-radius:999px;padding:12px 18px;background:var(--accent);color:#fff!important;font-weight:800;line-height:1.15;text-decoration:none!important;box-shadow:0 8px 22px rgba(91,69,247,.22)}
.button.secondary{background:#fff;color:var(--accent)!important;border:1px solid #d5d0ff;box-shadow:none}
.hero{padding:82px 0 54px;background:linear-gradient(180deg,#f4f2ff,#fff)}.eyebrow{display:inline-block;padding:7px 11px;border-radius:999px;background:var(--accent2);color:var(--accent);font-size:.78rem;font-weight:850;text-transform:uppercase;letter-spacing:.09em}
h1{font-size:clamp(2.5rem,5vw,4.8rem);line-height:1.01;letter-spacing:-.055em;margin:17px 0 20px;max-width:950px}h2{font-size:clamp(1.65rem,2.9vw,2.35rem);line-height:1.15;letter-spacing:-.035em;margin:44px 0 15px}h3{font-size:1.18rem;line-height:1.25;margin:28px 0 8px}
.lead{font-size:1.18rem;color:var(--muted);max-width:820px}.actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:28px}.section{padding:48px 0}.soft{background:var(--wash)}
.grid3{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}.grid2{display:grid;grid-template-columns:repeat(2,1fr);gap:18px}.card{padding:24px;border:1px solid var(--line);border-radius:var(--radius);background:#fff;box-shadow:var(--shadow)}.card h3{margin-top:4px}.card p{color:var(--muted)}
.page-shell{max-width:1160px;margin:auto;padding:40px 22px;display:grid;grid-template-columns:minmax(0,790px) 290px;gap:46px;align-items:start}.article h1{font-size:clamp(2.35rem,4vw,3.7rem);margin-top:10px}.article p,.article li{font-size:1.03rem}.article ul,.article ol{padding-left:22px}.article code{background:#f0f2f6;border-radius:6px;padding:2px 5px}
.breadcrumbs{font-size:.87rem;color:var(--muted);margin-bottom:18px}.meta{font-size:.88rem;color:var(--muted);margin:10px 0 22px}.notice{border:1px solid #eadcad;background:#fffaf1;border-radius:14px;padding:15px 17px;color:#6d4c00;margin:22px 0}.callout{border-left:4px solid var(--accent);background:#f7f6ff;border-radius:0 14px 14px 0;padding:18px 20px;margin:26px 0}
.cta-box{margin:32px 0;padding:25px;border:1px solid #d7d2ff;border-radius:18px;background:linear-gradient(135deg,#f4f2ff,#fff)}.cta-box h3{margin:0 0 7px}.cta-box p{margin:0 0 15px;color:var(--muted)}
.table-wrap{overflow:auto}.compare{width:100%;border-collapse:separate;border-spacing:0;border:1px solid var(--line);border-radius:14px;overflow:hidden;margin:22px 0}.compare th,.compare td{padding:13px 14px;border-bottom:1px solid var(--line);vertical-align:top;text-align:left}.compare th{background:var(--wash)}.compare tr:last-child td{border-bottom:0}
.sidebar{position:sticky;top:96px}.side-box{border:1px solid var(--line);border-radius:18px;padding:20px;background:#fff;box-shadow:var(--shadow);margin-bottom:16px}.side-box h3{margin:0 0 8px;font-size:1.05rem}.side-box p{font-size:.91rem;color:var(--muted);margin:0 0 14px}.side-links{display:grid;gap:9px}.side-links a{font-size:.9rem;font-weight:650}
.disclosure{font-size:.9rem;color:var(--muted);border-top:1px solid var(--line);padding-top:14px;margin-top:30px}.badge{display:inline-block;padding:5px 9px;border-radius:999px;background:#edf9f4;color:var(--success);font-size:.76rem;font-weight:850}
footer{border-top:1px solid var(--line);margin-top:58px;padding:34px 0 48px;color:var(--muted);font-size:.9rem}.foot{display:flex;justify-content:space-between;gap:24px;flex-wrap:wrap}.footnav{display:flex;gap:14px;flex-wrap:wrap}
@media(max-width:900px){.page-shell{grid-template-columns:1fr}.sidebar{position:static}.main-nav>a:not(.button){display:none}.grid3{grid-template-columns:1fr 1fr}}
@media(max-width:650px){.grid3,.grid2{grid-template-columns:1fr}.hero{padding-top:55px}.header-inner{min-height:64px}.button{padding:11px 14px;font-size:.9rem}.page-shell{padding-top:28px}h1{font-size:2.6rem}}