*{margin:0;padding:0;box-sizing:border-box}
:root{--bg:#f6f5fb;--surface:#fff;--ink:#0e1230;--muted:#5b5f80;--soft:#8b8fa8;--line:#e3e1ef;--brand:#1f5cf0;--violet:#7b2ff2;--ember:#f2542d;--grad:linear-gradient(95deg,#1f5cf0 0%,#7b2ff2 48%,#f2542d 100%);--shadow:0 24px 60px -18px rgba(37,32,110,.18),0 2px 8px rgba(20,16,60,.05)}
html{scroll-behavior:smooth;scroll-padding-top:96px}
body{font-family:'Plus Jakarta Sans',ui-sans-serif,system-ui,sans-serif;background:var(--bg);color:var(--ink);-webkit-font-smoothing:antialiased;line-height:1.65}
a{color:var(--brand);text-decoration:none}
a:hover{color:var(--violet)}
img{max-width:100%;display:block}

/* header */
.hdr{position:sticky;top:0;z-index:50;background:rgba(246,245,251,.86);backdrop-filter:saturate(160%) blur(14px);border-bottom:1px solid var(--line)}
.hdr-in{max-width:1200px;margin:0 auto;padding:14px clamp(16px,4vw,40px);display:flex;align-items:center;gap:16px}
.brand{display:flex;align-items:center;gap:10px;color:var(--ink)}
.brand img{width:30px;height:30px}
.brand span{font-weight:700;font-size:17px;letter-spacing:-.022em}
.hdr nav{margin-left:auto;display:flex;align-items:center;gap:clamp(6px,1.6vw,22px)}
.hdr nav a{font-size:14px;font-weight:500;color:var(--muted)}
.hdr nav a:hover{color:var(--ink)}
.hdr nav a.on{color:var(--ink);font-weight:600}
.btn{display:inline-flex;align-items:center;gap:8px;padding:11px 20px;border-radius:999px;font-size:14px;font-weight:600;color:#fff!important;background:var(--grad);box-shadow:0 8px 22px -8px rgba(85,40,220,.5);transition:transform .18s ease,box-shadow .18s ease;min-height:44px;justify-content:center}
.btn:hover{transform:translateY(-2px);box-shadow:0 14px 30px -8px rgba(85,40,220,.58);color:#fff!important}
.btn.ghost{background:var(--surface);color:var(--ink)!important;border:1px solid var(--line);box-shadow:none}
.btn.ghost:hover{border-color:#c9c5e4;color:var(--ink)!important}

/* hero */
.hero{max-width:1200px;margin:0 auto;padding:clamp(40px,7vw,84px) clamp(16px,4vw,40px) clamp(20px,3vw,32px)}
.eyebrow{display:inline-block;font-size:12px;font-weight:700;letter-spacing:.16em;text-transform:uppercase;background:linear-gradient(95deg,#1f5cf0,#7b2ff2 60%,#f2542d);-webkit-background-clip:text;background-clip:text;color:transparent;margin-bottom:14px}
h1{font-size:clamp(30px,5vw,50px);line-height:1.08;letter-spacing:-.032em;font-weight:700;text-wrap:balance}
.lede{margin-top:16px;font-size:clamp(15px,1.7vw,19px);color:var(--muted);max-width:62ch;text-wrap:pretty}
.stamp{margin-top:20px;display:inline-flex;align-items:center;gap:8px;font-size:13px;color:var(--soft);background:var(--surface);border:1px solid var(--line);padding:7px 14px;border-radius:999px}
.stamp b{color:var(--muted);font-weight:600}

/* layout */
.shell{max-width:1200px;margin:0 auto;padding:clamp(16px,3vw,28px) clamp(16px,4vw,40px) clamp(56px,8vw,96px);display:grid;grid-template-columns:220px minmax(0,1fr);gap:clamp(24px,4vw,56px);align-items:start}
.shell.solo{grid-template-columns:minmax(0,1fr)}
.toc{position:sticky;top:88px;font-size:13.5px;display:flex;flex-direction:column;gap:2px;border-left:2px solid var(--line);padding-left:2px}
.toc a{padding:6px 12px;color:var(--soft);border-left:2px solid transparent;margin-left:-4px;line-height:1.4}
.toc a:hover{color:var(--ink)}
.toc a.on{color:var(--brand);border-left-color:var(--brand);font-weight:600}
.doc{max-width:78ch;min-width:0}
.doc h2{font-size:clamp(20px,2.4vw,27px);letter-spacing:-.022em;font-weight:700;margin:clamp(38px,5vw,54px) 0 14px;scroll-margin-top:96px}
.doc h2:first-child{margin-top:0}
.doc h3{font-size:clamp(16px,1.8vw,18.5px);font-weight:650;letter-spacing:-.014em;margin:28px 0 8px}
.doc p{color:var(--muted);margin:0 0 14px;text-wrap:pretty}
.doc ul{margin:0 0 16px;padding:0;list-style:none;display:flex;flex-direction:column;gap:9px}
.doc li{color:var(--muted);padding-left:26px;position:relative}
.doc li::before{content:"";position:absolute;left:6px;top:.68em;width:6px;height:6px;border-radius:2px;background:var(--grad)}
.doc strong{color:var(--ink);font-weight:650}
.rule{height:1px;background:var(--line);margin:clamp(38px,5vw,52px) 0}

/* cards */
.grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(248px,1fr));gap:14px;margin:20px 0 8px}
.card{background:var(--surface);border:1px solid var(--line);border-radius:14px;padding:22px;box-shadow:0 1px 2px rgba(20,16,60,.04)}
.card h3{margin:0 0 7px;font-size:16px}
.card p{font-size:14.5px;margin:0}
.card .ic{width:34px;height:34px;border-radius:10px;background:rgba(31,92,240,.09);color:var(--brand);display:flex;align-items:center;justify-content:center;margin-bottom:13px}
.card .ic svg{width:18px;height:18px}
.metric{display:inline-flex;flex-direction:column;gap:2px;background:var(--surface);border:1px solid var(--line);border-radius:12px;padding:14px 20px}
.metric b{font-size:clamp(20px,2.6vw,26px);letter-spacing:-.02em;background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}
.metric span{font-size:12.5px;color:var(--soft);font-weight:500}
.metrics{display:flex;flex-wrap:wrap;gap:12px;margin:20px 0 4px}
.note{background:var(--surface);border:1px solid var(--line);border-left:3px solid transparent;border-radius:12px;padding:18px 22px;margin:20px 0;background-image:linear-gradient(var(--surface),var(--surface)),var(--grad);background-origin:border-box;background-clip:padding-box,border-box}
.note p{margin:0;font-size:14.5px}
.chips{display:flex;flex-wrap:wrap;gap:8px;margin:18px 0 6px}
.chip{font-size:13px;font-weight:500;color:var(--muted);background:var(--surface);border:1px solid var(--line);border-radius:999px;padding:7px 14px}

/* faq accordion */
.cat{margin:clamp(34px,4.5vw,48px) 0 14px;display:flex;align-items:center;gap:12px;scroll-margin-top:96px}
.cat h2{margin:0}
.cat i{flex:1;height:1px;background:var(--line);font-style:normal}
.qa{background:var(--surface);border:1px solid var(--line);border-radius:14px;overflow:hidden;margin-bottom:10px;transition:border-color .18s ease,box-shadow .18s ease}
.qa[open]{border-color:#cfc9ee;box-shadow:0 10px 30px -14px rgba(37,32,110,.22)}
.qa summary{list-style:none;cursor:pointer;padding:18px 22px;display:flex;align-items:flex-start;gap:14px;font-weight:600;font-size:15.5px;letter-spacing:-.012em}
.qa summary::-webkit-details-marker{display:none}
.qa summary:hover{color:var(--brand)}
.qa summary .n{font-size:12.5px;font-weight:700;color:var(--soft);min-width:22px;padding-top:2px;font-variant-numeric:tabular-nums}
.qa summary .t{flex:1}
.qa summary .x{flex:none;width:20px;height:20px;color:var(--soft);transition:transform .22s ease;margin-top:2px}
.qa[open] summary .x{transform:rotate(45deg);color:var(--brand)}
.qa .a{padding:0 22px 20px 58px;color:var(--muted);font-size:14.8px}

/* cta */
.cta{max-width:1200px;margin:0 auto clamp(56px,8vw,88px);padding:0 clamp(16px,4vw,40px)}
.cta-in{background:var(--ink);border-radius:clamp(16px,2.4vw,24px);padding:clamp(30px,5vw,54px);color:#fff;position:relative;overflow:hidden}
.cta-in::after{content:"";position:absolute;inset:auto -10% -70% 40%;height:180%;background:radial-gradient(closest-side,rgba(123,47,242,.5),transparent 72%);pointer-events:none}
.cta-in h2{font-size:clamp(22px,3.2vw,34px);letter-spacing:-.028em;margin-bottom:12px;position:relative;text-wrap:balance}
.cta-in p{color:#a9adcb;max-width:52ch;margin-bottom:24px;position:relative;text-wrap:pretty}
.cta-row{display:flex;flex-wrap:wrap;gap:12px;position:relative}
.cta .btn.ghost{background:rgba(255,255,255,.08);border-color:rgba(255,255,255,.18);color:#fff!important}
.cta .btn.ghost:hover{background:rgba(255,255,255,.14);border-color:rgba(255,255,255,.3);color:#fff!important}

/* footer */
.ftr{background:var(--ink);color:#a9adcb;padding:clamp(44px,6vw,68px) clamp(16px,4vw,40px) 30px}
.ftr-in{max-width:1200px;margin:0 auto;display:grid;grid-template-columns:minmax(240px,1.4fr) repeat(3,minmax(130px,1fr));gap:clamp(26px,4vw,48px)}
.ftr .brand span{color:#fff}
.ftr-about p{margin-top:16px;font-size:14px;max-width:34ch;line-height:1.65;text-wrap:pretty}
.ftr-about .addr{margin-top:16px;font-size:13.5px;color:#7f84a6;font-style:normal;line-height:1.6}
.ftr h4{font-size:12px;font-weight:700;letter-spacing:.14em;text-transform:uppercase;color:#fff;margin-bottom:16px}
.ftr ul{list-style:none;display:flex;flex-direction:column;gap:11px}
.ftr ul a{color:#a9adcb;font-size:14px}
.ftr ul a:hover{color:#fff}
.ftr-bot{max-width:1200px;margin:clamp(34px,5vw,52px) auto 0;padding-top:24px;border-top:1px solid rgba(255,255,255,.1);display:flex;flex-wrap:wrap;gap:12px 24px;align-items:center;justify-content:space-between;font-size:13px;color:#7f84a6}
.ftr-bot nav{display:flex;flex-wrap:wrap;gap:10px 20px}
.ftr-bot a{color:#7f84a6}
.ftr-bot a:hover{color:#fff}

@media(max-width:1000px){.shell{grid-template-columns:minmax(0,1fr)}.toc{display:none}}
@media(max-width:760px){.ftr-in{grid-template-columns:1fr 1fr}.ftr-about{grid-column:1/-1}}
@media(max-width:560px){.hdr nav a:not(.btn){display:none}.ftr-in{grid-template-columns:1fr}.btn{width:auto}.cta-row .btn{width:100%}.doc li{padding-left:22px}.qa .a{padding-left:22px}}