:root{
  --bg:#f6f8fc; --bg-2:#eef2f9; --card:#ffffff; --text:#111827; --muted:#667085;
  --line:#e3e8f2; --accent:#2f6bff; --accent-2:#5b8cff; --accent-soft:#eaf1ff;
  --shadow:0 24px 70px rgba(23,43,99,.10); --radius:20px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--bg);color:var(--text);font-family:"Segoe UI Variable","Microsoft YaHei",system-ui,sans-serif;line-height:1.7;-webkit-font-smoothing:antialiased}
body.dark{--bg:#0b1018;--bg-2:#111827;--card:#121a26;--text:#e8edf6;--muted:#94a3b8;--line:#1e293b;--accent:#5b8cff;--accent-soft:#17233a;--shadow:0 24px 70px rgba(0,0,0,.35)}
a{color:inherit;text-decoration:none}
.nav{position:sticky;top:0;z-index:20;display:flex;align-items:center;gap:26px;padding:14px 6vw;background:color-mix(in srgb,var(--bg) 86%,transparent);backdrop-filter:blur(16px);border-bottom:1px solid var(--line)}
.brand{display:flex;align-items:center;gap:9px;font-weight:800;letter-spacing:.01em}
.brand-name{font-size:15px}.brand-name span{color:var(--accent)}
.ver{font-size:10px;color:var(--muted);border:1px solid var(--line);border-radius:999px;padding:1px 7px;margin-left:2px}
.logo{display:inline-flex;align-items:flex-end;gap:2.5px;width:24px;height:22px}
.logo span{display:block;width:4px;border-radius:3px;background:var(--accent)}
.logo span:nth-child(1){height:8px;opacity:.55}.logo span:nth-child(2){height:16px}.logo span:nth-child(3){height:12px;opacity:.75}.logo span:nth-child(4){height:21px}
.links{display:flex;gap:22px;margin-left:auto;font-size:13px;color:var(--muted)}
.links a:hover{color:var(--text)}
.nav-actions{display:flex;align-items:center;gap:10px}
.theme{border:1px solid var(--line);background:var(--card);color:var(--muted);width:32px;height:32px;border-radius:9px;cursor:pointer;font-size:14px}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:7px;border-radius:11px;padding:12px 20px;font-size:13.5px;font-weight:650;border:1px solid transparent;cursor:pointer;transition:.18s}
.btn.small{padding:7px 13px;font-size:12px}
.btn.primary{background:var(--accent);color:#fff;box-shadow:0 10px 24px rgba(47,107,255,.28)}
.btn.primary:hover{transform:translateY(-1px);box-shadow:0 14px 30px rgba(47,107,255,.35)}
.btn.ghost{border-color:var(--line);background:var(--card);color:var(--text)}
.btn.ghost:hover{border-color:var(--accent);color:var(--accent)}
main{max-width:1180px;margin:0 auto;padding:0 24px}
.hero{display:grid;grid-template-columns:1.05fr .95fr;gap:40px;align-items:center;padding:78px 0 48px}
.eyebrow{font-size:10.5px;letter-spacing:.22em;color:var(--accent);font-weight:750}
.hero h1{font-size:clamp(38px,5vw,62px);line-height:1.08;letter-spacing:-.03em;margin:14px 0 18px;font-weight:800}
.hero h1 em{font-style:normal;color:var(--accent)}
.lead{font-size:15px;color:var(--muted);max-width:520px;margin:0 0 26px}
.cta{display:flex;gap:10px;flex-wrap:wrap}
.meta{display:flex;align-items:center;gap:10px;margin-top:20px;color:var(--muted);font-size:11.5px}
.meta i{width:3px;height:3px;border-radius:50%;background:var(--muted);opacity:.6}
.hero-shot{position:relative}
.hero-shot img{width:100%;border-radius:var(--radius);border:1px solid var(--line);box-shadow:var(--shadow);display:block}
.hero-shot .glow{position:absolute;inset:8% -6% -8% 6%;background:radial-gradient(closest-side,rgba(47,107,255,.22),transparent 70%);filter:blur(30px);z-index:-1}
.stats{display:grid;grid-template-columns:repeat(4,1fr);border:1px solid var(--line);background:var(--card);border-radius:16px;padding:18px 8px;margin:14px 0 64px}
.stats div{text-align:center;border-right:1px solid var(--line)}.stats div:last-child{border:0}
.stats b{display:block;font-size:22px;letter-spacing:-.02em}.stats span{font-size:11px;color:var(--muted)}
.section{padding:34px 0 52px}
.section-head{max-width:640px;margin-bottom:26px}
.section-head h2{font-size:clamp(24px,3vw,34px);letter-spacing:-.02em;margin:10px 0 10px}
.section-head p{color:var(--muted);font-size:13.5px;margin:0}
.grid{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}
.card{background:var(--card);border:1px solid var(--line);border-radius:16px;padding:20px;transition:.18s}
.card:hover{transform:translateY(-2px);box-shadow:var(--shadow);border-color:color-mix(in srgb,var(--accent) 35%,var(--line))}
.card .ico{width:34px;height:34px;border-radius:10px;background:var(--accent-soft);color:var(--accent);display:grid;place-items:center;font-size:16px;margin-bottom:12px}
.card h3{font-size:14px;margin:0 0 6px}.card p{font-size:12px;color:var(--muted);margin:0}
.steps{list-style:none;padding:0;margin:0;display:grid;grid-template-columns:repeat(3,1fr);gap:14px}
.steps li{display:flex;gap:14px;background:var(--card);border:1px solid var(--line);border-radius:16px;padding:20px}
.steps span{font-size:11px;font-weight:800;color:var(--accent);letter-spacing:.1em}
.steps h3{font-size:14px;margin:0 0 5px}.steps p{font-size:12px;color:var(--muted);margin:0}
.shots{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.shots figure{margin:0;background:var(--card);border:1px solid var(--line);border-radius:16px;overflow:hidden}
.shots .wide{grid-column:1/-1}
.shots img{width:100%;display:block;aspect-ratio:16/9;object-fit:cover;object-position:top}
.shots figcaption{padding:10px 14px;font-size:11.5px;color:var(--muted);border-top:1px solid var(--line)}
.download{display:grid;grid-template-columns:1.2fr .8fr;gap:26px;background:linear-gradient(135deg,var(--accent) 0%,#1747b8 100%);color:#fff;border-radius:24px;padding:38px;margin:40px 0 56px;box-shadow:0 30px 80px rgba(31,78,190,.28)}
.download .eyebrow{color:#cfe0ff}.download h2{font-size:30px;margin:8px 0 10px;color:#fff}
.download p{color:#dbe7ff;font-size:13px;max-width:520px}
.download .btn.primary{background:#fff;color:#1747b8;box-shadow:none}
.download .btn.ghost{border-color:rgba(255,255,255,.4);background:transparent;color:#fff}
.download .hint{font-size:11px;color:#bfd4ff;margin-top:14px}
.req{list-style:none;margin:0;padding:0;background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.18);border-radius:16px;padding:8px 16px;align-self:start}
.req li{display:flex;justify-content:space-between;gap:12px;padding:9px 0;border-bottom:1px solid rgba(255,255,255,.14);font-size:12px}
.req li:last-child{border:0}.req span{color:#cfe0ff}.req b{font-weight:600;text-align:right}
.changelog{display:grid;gap:12px}
.changelog article{display:grid;grid-template-columns:88px 1fr;gap:16px;background:var(--card);border:1px solid var(--line);border-radius:16px;padding:18px 20px}
.tag{font-size:11px;font-weight:750;color:var(--accent);background:var(--accent-soft);border-radius:6px;padding:3px 8px;height:fit-content;text-align:center}
.tag.muted{color:var(--muted);background:var(--bg-2)}
.changelog h3{font-size:14px;margin:0 0 6px}.changelog ul{margin:0;padding-left:16px;color:var(--muted);font-size:12px;line-height:1.9}
.foot{max-width:1180px;margin:0 auto;padding:30px 24px 54px;border-top:1px solid var(--line);color:var(--muted);font-size:12px}
.foot .brand{margin-bottom:10px;color:var(--text)}.foot p{max-width:720px;margin:4px 0}.foot .small{font-size:11px;opacity:.75}
@media(max-width:900px){
  .links{display:none}.hero{grid-template-columns:1fr;padding-top:44px}.stats{grid-template-columns:2fr 2fr;row-gap:16px}
  .stats div:nth-child(2){border-right:0}.grid,.steps{grid-template-columns:1fr 1fr}.download{grid-template-columns:1fr}
}
@media(max-width:620px){.grid,.steps,.shots{grid-template-columns:1fr}.shots .wide{grid-column:auto}.stats{grid-template-columns:1fr 1fr}.nav{padding:12px 18px}main{padding:0 18px}}