:root{
  --brand:#0aa88a; --brand2:#1a93d9; --ink:#12161f; --sub:#5b6474;
  --line:#e6eaf0; --bg:#f7f9fc; --card:#fff; --radius:14px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--bg);color:var(--ink);
  font:16px/1.75 -apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei","Helvetica Neue",Arial,sans-serif;
  -webkit-font-smoothing:antialiased}
a{color:var(--brand2);text-decoration:none}
a:hover{text-decoration:underline}
.wrap{max-width:1040px;margin:0 auto;padding:0 22px}

header.nav{position:sticky;top:0;z-index:9;background:rgba(255,255,255,.92);
  backdrop-filter:saturate(180%) blur(12px);border-bottom:1px solid var(--line)}
.nav-in{display:flex;align-items:center;gap:14px;height:66px}
.nav-in img{width:34px;height:34px;border-radius:9px}
.brand{font-weight:700;font-size:17px;letter-spacing:.2px}
.brand small{display:block;font-weight:400;font-size:11px;color:var(--sub);letter-spacing:.6px}
nav.links{margin-left:auto;display:flex;gap:20px;align-items:center;font-size:14px}
nav.links a{color:var(--sub)}
nav.links a:hover{color:var(--ink)}
.lang{border:1px solid var(--line);background:#fff;border-radius:999px;padding:5px 12px;
  font:inherit;font-size:13px;cursor:pointer;color:var(--sub)}
.lang:hover{border-color:#c9d2e0;color:var(--ink)}

.hero{padding:72px 0 60px;background:
  radial-gradient(900px 420px at 12% -10%, rgba(10,168,138,.10), transparent 60%),
  radial-gradient(900px 420px at 88% 0%, rgba(26,147,217,.10), transparent 60%)}
.hero h1{font-size:40px;line-height:1.25;margin:0 0 14px;letter-spacing:-.5px}
.hero p.lead{font-size:18px;color:var(--sub);max-width:640px;margin:0 0 26px}
.tag{display:inline-block;font-size:13px;color:var(--brand);background:rgba(10,168,138,.08);
  border:1px solid rgba(10,168,138,.22);border-radius:999px;padding:4px 12px;margin-bottom:18px}
.btns{display:flex;gap:12px;flex-wrap:wrap}
.btn{display:inline-block;padding:11px 22px;border-radius:999px;font-size:15px;font-weight:600}
.btn.p{background:linear-gradient(135deg,var(--brand),var(--brand2));color:#fff}
.btn.p:hover{text-decoration:none;filter:brightness(1.05)}
.btn.s{background:#fff;border:1px solid var(--line);color:var(--ink)}
.btn.s:hover{text-decoration:none;border-color:#c9d2e0}

section{padding:56px 0}
h2{font-size:24px;margin:0 0 8px;letter-spacing:-.2px}
.sub{color:var(--sub);margin:0 0 28px;font-size:15px}
.grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
@media(max-width:860px){.grid{grid-template-columns:1fr}.hero h1{font-size:30px}}
.card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:24px}
.card h3{margin:0 0 8px;font-size:17px}
.card p{margin:0;color:var(--sub);font-size:14.5px}
.ico{width:44px;height:44px;border-radius:12px;margin-bottom:14px;
  background:linear-gradient(135deg,rgba(10,168,138,.14),rgba(26,147,217,.14));
  display:flex;align-items:center;justify-content:center}
.ico svg{width:22px;height:22px;stroke:var(--brand);fill:none;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round}

.about{background:#fff;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.about .grid{grid-template-columns:1.2fr 1fr;gap:32px}
@media(max-width:860px){.about .grid{grid-template-columns:1fr}}
dl.info{margin:0;display:grid;grid-template-columns:96px 1fr;gap:10px 14px;font-size:14.5px}
dl.info dt{color:var(--sub)}
dl.info dd{margin:0}

footer{padding:34px 0 46px;color:var(--sub);font-size:13.5px}
footer .row{display:flex;gap:18px;flex-wrap:wrap;align-items:center}
footer .row .sp{flex:1}
footer a{color:var(--sub)}
.legal{max-width:820px;margin:0 auto;padding:44px 22px 70px}
.legal h1{font-size:26px;margin:0 0 6px}
.legal h2{font-size:17px;margin:30px 0 8px}
.legal p,.legal li{font-size:14.5px;color:#2b3140}
.legal .meta{color:var(--sub);font-size:13px;margin-bottom:26px}
.legal ol,.legal ul{padding-left:22px}
.legal li{margin:5px 0}
.en{display:none}
body.en-mode .zh{display:none}
body.en-mode .en{display:block}
body.en-mode .en.inline{display:inline}