:root{color-scheme:dark;--bg:#070b16;--ink:#f5f8ff;--muted:#aab6cc;--line:#253149;--blue:#85baff;--max:1200px}
*{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:24px}
body{margin:0;background:var(--bg);color:var(--ink);font-family:Inter,"PingFang SC","Microsoft YaHei",system-ui,sans-serif;line-height:1.65}
a{color:inherit;text-underline-offset:5px}a:hover{color:#a8d4ff}
a:focus-visible,select:focus-visible{outline:3px solid #8bcbff;outline-offset:5px}
a,select{-webkit-tap-highlight-color:transparent}
h1,h2,h3,p,figure{margin:0}h1,h2,h3{text-wrap:balance}p{overflow-wrap:anywhere}
.shell{width:min(calc(100% - 64px),var(--max));margin-inline:auto}
.skip{position:absolute;inset-block-start:8px;inset-inline-start:12px;padding:10px;background:#17263e;z-index:5;transform:translateY(-180%)}.skip:focus{transform:none}
.nav{min-height:88px;display:flex;align-items:center;gap:28px;border-bottom:1px solid var(--line);padding-block:16px}
.brand{display:flex;align-items:center;gap:10px;text-decoration:none;font-size:20px;font-weight:750;flex-shrink:0}.brand img{border-radius:10px}
.nav nav{display:flex;flex-wrap:wrap;gap:24px;margin-inline-start:auto}.nav nav a{text-decoration:none;font-size:14px}
.language{display:flex;align-items:center;gap:9px;color:var(--muted);font-size:13px}.language[hidden]{display:none}
select{font:inherit;color:var(--ink);background:#101a2c;border:1px solid #415473;border-radius:8px;padding:10px 26px 10px 10px;max-width:180px;cursor:pointer}
.hero{padding-top:72px;text-align:center}
.eyebrow{color:#9cc9ff;letter-spacing:.12em;font-size:12px;font-weight:700;text-transform:uppercase;margin-bottom:22px}
h1{font-size:clamp(38px,5.2vw,70px);line-height:1.14;letter-spacing:-.045em;font-weight:740;max-width:1100px;margin-inline:auto;overflow-wrap:break-word}
h1 span{display:block}.accent{color:var(--blue);margin-top:8px}
.lead{max-width:700px;margin:26px auto 0;font-size:clamp(17px,1.8vw,21px);color:var(--muted)}
.requirements{margin:20px auto 0;max-width:700px;color:var(--muted);font-size:13px}
.visual{margin-top:48px}.visual img{display:block;width:100%;height:auto;border-radius:24px;border:1px solid #ffffff26}
.section{padding-block:88px}.section h2,.support h2{font-size:clamp(28px,3.2vw,42px);line-height:1.2;letter-spacing:-.025em}
.features{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:40px;margin-top:44px}
.feature{border-top:1px solid var(--line);padding-top:22px}.number{color:#7aa4d8;font-size:12px;letter-spacing:.1em}
.feature h3{font-size:20px;line-height:1.4;margin:16px 0 10px}
.feature p,.section-intro,.platform>p,.support p{color:var(--muted);font-size:16px}
.download-section{background:#0d1422;border-block:1px solid var(--line)}.section-intro{max-width:650px;margin-top:20px}
.platforms{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px;margin-top:36px}
.platform{border:1px solid #334159;border-radius:20px;padding:32px;display:flex;flex-direction:column;align-items:flex-start;min-width:0}
.platform h3{font-size:26px;line-height:1.2;margin-bottom:12px}.availability{margin-top:auto;padding-top:30px}
.status{display:inline-block;padding:9px 14px;background:#1c2940;color:#c7d8ef;border-radius:8px;font-size:14px;font-weight:600}
.platform-note{font-size:13px;color:var(--muted);margin-top:12px}
.download-link{display:inline-block;background:#b9d8ff;color:#081324;padding:10px 18px;border-radius:8px;font-weight:650}.download-link:hover{background:#d5e8ff;color:#081324}
.support{padding-block:72px;display:flex;align-items:center;justify-content:space-between;gap:32px}.support h2{font-size:28px}.support p{margin-top:12px}
.email{font-size:18px;overflow-wrap:anywhere}
footer{padding-block:28px;border-top:1px solid var(--line);color:var(--muted);font-size:13px;display:flex;justify-content:space-between;gap:24px}footer div{display:flex;gap:24px;flex-wrap:wrap}
@media(min-width:1600px){.hero{padding-top:92px}}
@media(max-width:900px){.features{gap:24px}.feature h3{font-size:18px}.support{align-items:flex-start;flex-direction:column}.hero{padding-top:58px}}
@media(max-width:640px){.shell{width:calc(100% - 36px)}.nav{gap:12px;flex-wrap:wrap;justify-content:space-between}.nav nav{order:3;width:100%;margin:0;gap:28px}.language>span{display:none}select{max-width:150px}.hero{padding-top:44px}h1{font-size:clamp(34px,7.8vw,48px);letter-spacing:-.035em}.eyebrow{font-size:11px;letter-spacing:.07em}.lead{margin-top:22px}.requirements{font-size:12px}.visual{margin-top:32px}.visual img{border-radius:14px}.section{padding-block:56px}.features,.platforms{grid-template-columns:1fr;gap:26px;margin-top:30px}.feature h3{font-size:20px}.platform{padding:26px}.support{padding-block:52px}footer{flex-direction:column;gap:14px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}}