:root{--bg:#05060c;--bg2:#0a0c18;--fg:#f5f6fa;--muted:#9a9fb4;--faint:#5f6479;--line:rgba(255,255,255,.09);
--accent:#5b6bff;--accent2:#22a7ff;--mint:#33d6a6;--glass:rgba(255,255,255,.045);--r:20px}
*{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{margin:0;background:var(--bg);color:var(--fg);overflow-x:hidden;
font:400 17px/1.65 -apple-system,BlinkMacSystemFont,"SF Pro Text","Segoe UI",Roboto,Helvetica,Arial,sans-serif;-webkit-font-smoothing:antialiased}
body::before{content:"";position:fixed;inset:-20% -10% auto;height:80vh;z-index:-1;pointer-events:none;
background:radial-gradient(50% 50% at 30% 30%,rgba(91,107,255,.22),transparent 70%),radial-gradient(40% 40% at 80% 20%,rgba(34,167,255,.14),transparent 70%)}
a{color:inherit}
img,video{max-width:100%;display:block}
.wrap{max-width:1120px;margin:0 auto;padding:0 20px}
.narrow{max-width:760px}
.sp{flex:1}
.center{text-align:center;justify-content:center}
/* nav */
nav{position:sticky;top:0;z-index:10;background:rgba(5,6,12,.78);backdrop-filter:saturate(1.4) blur(16px);-webkit-backdrop-filter:saturate(1.4) blur(16px);border-bottom:1px solid var(--line)}
nav .wrap{display:flex;align-items:center;gap:18px;height:60px}
.mark{display:flex;align-items:center;gap:9px;font-weight:650;letter-spacing:-.01em;text-decoration:none}
.mark img{border-radius:7px}
nav .lk{color:var(--muted);font-size:14.5px;text-decoration:none}
nav .lk:hover{color:var(--fg)}
.lang{font-size:12px;font-weight:700;color:var(--muted);border:1px solid var(--line);border-radius:999px;padding:3px 10px;text-decoration:none}
/* buttons */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:14px 22px;border-radius:999px;font-weight:650;font-size:16px;
text-decoration:none;color:#fff;background:linear-gradient(135deg,var(--accent),var(--accent2));box-shadow:0 8px 30px rgba(91,107,255,.35)}
.btn:hover{filter:brightness(1.08)}
.btn.sm{padding:8px 15px;font-size:14px;box-shadow:none}
.btn.ghost{background:var(--glass);border:1px solid var(--line);box-shadow:none}
.btns{display:flex;flex-wrap:wrap;gap:12px;margin:26px 0 14px}
/* hero */
.hero{display:grid;grid-template-columns:1.05fr .95fr;gap:48px;align-items:center;padding-top:64px;padding-bottom:40px}
.eyebrow{color:var(--mint);font-weight:650;font-size:14px;letter-spacing:.06em;text-transform:uppercase;margin:0 0 12px}
h1{font-size:clamp(36px,5.2vw,60px);line-height:1.05;letter-spacing:-.03em;margin:0 0 18px;font-weight:750}
.article h1,main.narrow h1{font-size:clamp(30px,4.4vw,44px)}
h2{font-size:clamp(26px,3.2vw,38px);letter-spacing:-.02em;line-height:1.15;margin:0 0 26px}
.lead{color:var(--muted);font-size:clamp(17px,1.6vw,20px);margin:0}
.note{color:var(--faint);font-size:14px;margin:0}
.hvideo video{border-radius:28px;border:1px solid var(--line);box-shadow:0 30px 80px rgba(0,0,0,.6);width:100%;aspect-ratio:16/9;object-fit:cover;background:#000}
.sec{padding-top:72px;padding-bottom:8px}
/* features */
.feats{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
.feat{background:var(--glass);border:1px solid var(--line);border-radius:var(--r);padding:22px}
.feat svg{width:30px;height:30px;fill:none;stroke:var(--accent2);stroke-width:1.7;stroke-linecap:round;stroke-linejoin:round;margin-bottom:12px}
.feat h3{margin:0 0 6px;font-size:17px;letter-spacing:-.01em}
.feat p{margin:0;color:var(--muted);font-size:15px;line-height:1.5}
/* screenshots */
.shots{display:flex;gap:18px;overflow-x:auto;scroll-snap-type:x mandatory;padding-bottom:10px;scrollbar-width:thin}
.shots img{flex:0 0 auto;width:min(240px,62vw);height:auto;border-radius:30px;border:1px solid var(--line);scroll-snap-align:start}
/* steps */
.steps{list-style:none;counter-reset:s;padding:0;margin:0;display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.steps li{counter-increment:s;background:var(--glass);border:1px solid var(--line);border-radius:var(--r);padding:24px}
.steps li::before{content:counter(s);display:grid;place-items:center;width:34px;height:34px;border-radius:50%;background:linear-gradient(135deg,var(--accent),var(--accent2));font-weight:700;margin-bottom:12px}
.steps b{display:block;margin-bottom:4px}.steps span{color:var(--muted);font-size:15px}
/* faq */
.faq details{border-bottom:1px solid var(--line);padding:16px 0}
.faq summary{cursor:pointer;font-weight:620;font-size:17.5px;list-style:none;display:flex;justify-content:space-between;gap:16px}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";color:var(--muted);font-weight:400;font-size:22px;line-height:1}
.faq details[open] summary::after{content:"–"}
.faq details p{color:var(--muted);margin:10px 0 0}
/* guide cards */
.ggrid{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}
.gcard{display:block;text-decoration:none;background:var(--glass);border:1px solid var(--line);border-radius:16px;padding:18px 20px;transition:border-color .2s,transform .2s}
.gcard:hover{border-color:rgba(91,107,255,.6);transform:translateY(-2px)}
.gcard b{display:block;font-size:16.5px;line-height:1.35;margin-bottom:6px}
.gcard span{color:var(--muted);font-size:14.5px;line-height:1.5;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}
.ghead{padding:56px 0 28px}
.lk2{color:var(--accent2);font-weight:600;text-decoration:none}
/* article */
main.narrow{padding-top:36px;padding-bottom:40px}
.crumbs{color:var(--faint);font-size:14px;margin:0 0 14px}.crumbs a{text-decoration:none;color:var(--muted)}
.meta{color:var(--faint);font-size:14px;margin:0 0 28px}
article{font-size:18px;line-height:1.75;color:#dfe2ec}
article h2{font-size:27px;margin:44px 0 14px;color:var(--fg)}
article h3{font-size:20px;margin:30px 0 10px;color:var(--fg)}
article a{color:var(--accent2)}
article li{margin:6px 0}
article strong{color:var(--fg)}
article table{border-collapse:collapse;width:100%;font-size:16px;margin:20px 0}
article th,article td{border:1px solid var(--line);padding:10px 12px;text-align:left;vertical-align:top}
article th{background:var(--glass)}
article blockquote{margin:20px 0;padding:4px 18px;border-left:3px solid var(--accent);color:var(--muted)}
.cta{display:flex;gap:18px;align-items:flex-start;margin:36px 0;padding:24px;border-radius:22px;background:linear-gradient(135deg,rgba(91,107,255,.16),rgba(34,167,255,.08));border:1px solid rgba(91,107,255,.35)}
.cta img{border-radius:15px;flex:0 0 auto}
.cta h3{margin:0 0 4px;font-size:19px;color:var(--fg)}
.cta p{margin:0 0 14px;color:var(--muted);font-size:15.5px;line-height:1.5}
.cta .btn{font-size:15px;padding:11px 18px}
.more{margin-top:56px}.more h2{font-size:24px}
.more .ggrid{grid-template-columns:repeat(2,1fr)}
section.faq{margin-top:56px}.faq h2{font-size:26px}
/* footer */
footer{margin-top:90px;border-top:1px solid var(--line);padding:30px 0 40px}
.frow{display:flex;flex-wrap:wrap;align-items:center;gap:18px;font-size:14.5px}
.frow a{color:var(--muted);text-decoration:none}.frow .mark{color:var(--fg)}
.fine{color:var(--faint);font-size:13px;margin:18px 0 0}
@media (max-width:900px){.hero{grid-template-columns:1fr;gap:30px;padding-top:36px}.feats{grid-template-columns:repeat(2,1fr)}.ggrid{grid-template-columns:repeat(2,1fr)}.steps{grid-template-columns:1fr}
.hvideo video{aspect-ratio:9/16;max-height:72vh;width:auto;margin:0 auto}}
@media (max-width:600px){body{font-size:16px}.wrap{padding:0 16px}nav .lk{display:none}.feats,.ggrid,.more .ggrid{grid-template-columns:1fr}
article{font-size:17px}.cta{flex-direction:column}.btn{width:100%}.btns .btn{width:100%}nav .btn.sm{width:auto}}
.langs{position:relative}
.langs summary{list-style:none;cursor:pointer}.langs summary::-webkit-details-marker{display:none}
.langs>div{position:absolute;right:0;top:34px;background:#0d0f1c;border:1px solid var(--line);border-radius:14px;padding:6px;min-width:150px;box-shadow:0 20px 50px rgba(0,0,0,.5)}
.langs>div a{display:block;padding:8px 12px;border-radius:9px;text-decoration:none;font-size:14.5px;color:var(--muted)}
.langs>div a:hover{background:var(--glass);color:var(--fg)}