:root{--ink:#12131a;--muted:#5b5f6e;--line:#e4e6ee;--accent:#1B45D7;--bg:#fbfbfd}
*{box-sizing:border-box}
body{margin:0;background:var(--bg);color:var(--ink);
  font:16px/1.65 -apple-system,BlinkMacSystemFont,"Segoe UI",Inter,sans-serif}
.wrap{max-width:720px;margin:0 auto;padding:56px 24px 96px}
h1{font-size:32px;line-height:1.2;letter-spacing:-.02em;margin:0 0 8px}
h2{font-size:19px;letter-spacing:-.01em;margin:40px 0 10px}
.sub{color:var(--muted);margin:0 0 40px;font-size:15px}
p,li{color:#2a2d38}
ul{padding-left:20px}
a{color:var(--accent)}
.card{background:#fff;border:1px solid var(--line);border-radius:14px;padding:20px 22px;margin:24px 0}
.card strong{display:block;margin-bottom:4px}
footer{margin-top:56px;padding-top:20px;border-top:1px solid var(--line);
  color:var(--muted);font-size:13px}
nav{margin-bottom:32px;font-size:14px}
nav a{margin-right:18px;text-decoration:none}
nav a:hover{text-decoration:underline}
@media(prefers-color-scheme:dark){
  :root{--ink:#f2f3f7;--muted:#9aa0b4;--line:#2a2d3a;--bg:#0e0f14;--accent:#7f9bff}
  body{background:var(--bg);color:var(--ink)}
  p,li{color:#d3d6e0}
  .card{background:#161822}
}
/* landing */
.hero{display:grid;grid-template-columns:1.1fr 1fr;gap:32px;align-items:center;margin:28px 0}
.hero h1{font-size:clamp(30px,5vw,46px);line-height:1.08;margin:0 0 12px}
.hero .lead{font-size:18px;color:#5a5f6d;margin:0 0 18px}
.badge{display:inline-flex;align-items:center;gap:10px;background:#1B45D7;color:#fff;padding:12px 18px;border-radius:14px;font-weight:700;text-decoration:none}
.badge:hover{background:#163bb8}
.ba{display:grid;grid-template-columns:1fr 1fr;gap:10px}
.ba figure{margin:0;position:relative}
.ba img{width:100%;border-radius:16px;display:block;aspect-ratio:1080/1567;object-fit:cover;object-position:top}
.ba figcaption{position:absolute;top:10px;left:10px;background:#fff;border-radius:999px;padding:4px 10px;font-size:12px;font-weight:800;letter-spacing:.06em}
.grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:14px}
.feat{background:#fff;border:1px solid #e8e6df;border-radius:16px;padding:16px}
.feat h3{margin:0 0 6px;font-size:16px}
.feat p{margin:0;color:#5a5f6d;font-size:14px}
.faq details{background:#fff;border:1px solid #e8e6df;border-radius:12px;padding:12px 16px;margin:8px 0}
.faq summary{font-weight:700;cursor:pointer}
.lang{float:right;font-size:14px}
.icon{width:72px;height:72px;border-radius:18px;vertical-align:middle;margin-right:12px}
@media(max-width:720px){.hero{grid-template-columns:1fr}}