:root{
  --bg:#0a1f44; --bg2:#0d2450; --card:#10264c; --teal:#5eead4; --wh:#f4f8fb;
  --mu:#a8bbd6; --line:rgba(255,255,255,.12);
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  font-family:'Open Sans',system-ui,sans-serif;color:var(--wh);
  background:radial-gradient(ellipse 1200px 800px at 62% 40%, #122c55 0%, var(--bg2) 45%, var(--bg) 100%) fixed;
  line-height:1.5;
}
html[lang="zh"] body{font-family:'Noto Sans SC','Open Sans',sans-serif}
html[lang="zh"] h1,html[lang="zh"] h2,html[lang="zh"] h3,html[lang="zh"] .kick,html[lang="zh"] .hnum,html[lang="zh"] .sn{font-family:'Noto Sans SC',sans-serif}
h1,h2,h3,.kick,.hnum,.sn,.cta,.soon-h{font-family:'Montserrat','Open Sans',sans-serif}
.tl{color:var(--teal)}
a{color:inherit;text-decoration:none}
img{max-width:100%}
sup{font-size:.45em;letter-spacing:.1em;vertical-align:super}

/* header */
.hdr{position:fixed;inset:0 0 auto 0;z-index:50;display:flex;align-items:center;gap:28px;
  padding:10px 26px;background:rgba(10,31,68,.82);backdrop-filter:blur(10px);border-bottom:1px solid var(--line)}
.hdr .brand img{height:30px;display:block}
.hdr nav{display:flex;gap:22px;margin-left:auto}
.hdr nav a{color:var(--mu);font-size:14px;transition:color .2s}
.hdr nav a:hover{color:var(--teal)}
#langsel{background:var(--card);color:var(--wh);border:1px solid var(--line);border-radius:8px;
  padding:7px 10px;font-size:13px;cursor:pointer;font-family:inherit}
#langsel:focus{outline:1px solid var(--teal)}

/* hero */
.hero{position:relative;min-height:100svh;display:flex;flex-direction:column;align-items:center;justify-content:center;
  text-align:center;padding:110px 20px 60px;overflow:hidden}
.hero-logo{width:min(300px,60vw);margin-bottom:26px}
.rings i{position:absolute;border:1px solid rgba(94,234,212,.13);border-radius:50%}
.rings i:nth-child(1){width:520px;height:520px;right:-140px;bottom:-180px}
.rings i:nth-child(2){width:360px;height:360px;right:-60px;bottom:-100px}
.rings i:nth-child(3){width:200px;height:200px;right:40px;bottom:-20px}
.kick{color:var(--teal);letter-spacing:.42em;font-size:13px;font-weight:500;text-transform:uppercase}
.hero-tag{max-width:900px}
.hero-line{width:min(320px,60%);height:2px;background:var(--teal);margin:20px 0 18px}
.hero-brands{color:var(--wh);font-family:'Montserrat';font-weight:500;font-size:15px;max-width:900px}
.hero-stats{display:flex;justify-content:center;flex-wrap:wrap;margin-top:52px;max-width:1000px}
.hcol{flex:1 1 200px;max-width:250px;padding:6px 22px;text-align:center}
.hcol+.hcol{border-left:1px solid rgba(255,255,255,.15)}
.hnum{font-size:42px;color:var(--teal);font-weight:600}
.hh4{font-size:14px;color:var(--teal);font-weight:700;padding-top:12px}
.hcap{color:var(--mu);font-size:13px;margin-top:6px}
.cta{display:inline-block;margin-top:46px;background:var(--teal);color:#06281f;font-weight:700;font-size:15px;
  padding:14px 38px;border-radius:999px;transition:transform .15s,box-shadow .15s}
.cta:hover{transform:translateY(-2px);box-shadow:0 8px 30px rgba(94,234,212,.35)}
.hero-foot{margin-top:26px;color:var(--mu);font-size:13px;letter-spacing:.18em}
.hero-foot .ph{color:var(--teal);font-family:'Montserrat';font-weight:600;font-size:19px;letter-spacing:.02em}

/* sections */
main{max-width:1180px;margin:0 auto}
.sec{padding:84px 22px 30px;border-top:1px solid var(--line)}
.sec h2{font-size:clamp(26px,4vw,38px);font-weight:600;margin-top:14px}
.tbar{width:90px;height:3px;background:var(--teal);margin:14px 0 34px}
.sec h3{font-size:19px;font-weight:600;margin:26px 0 12px}
.sec h3:first-child{margin-top:0}
.grid2{display:grid;grid-template-columns:minmax(280px,340px) 1fr;gap:44px}
.blist{list-style:none}
.blist li{position:relative;padding-left:18px;margin-bottom:11px;font-size:14.5px}
.blist li::before{content:"—";position:absolute;left:0;color:var(--teal)}
.cards{display:grid;gap:16px}
.cards.c5{grid-template-columns:repeat(5,1fr)}
.cards.c4{grid-template-columns:repeat(4,1fr)}
.pcard .pimg{background:#fff;border-radius:8px;overflow:hidden}
.pcard img{display:block;width:100%;transition:transform .25s}
.pcard:hover img{transform:scale(1.03)}
.pcard figcaption{padding-top:9px}
.pct{font-size:13.5px;font-weight:600}
.pcd{font-size:12px;color:var(--mu);margin-top:2px}
.stats{display:grid;grid-template-columns:1fr 1fr;gap:26px;margin-top:30px;border-top:1px solid var(--line);padding-top:26px}
.stats-l{max-width:520px}
.sn{font-size:30px;color:var(--teal);font-weight:600}
.ss{font-size:14.5px;margin-left:7px}
.se{color:var(--mu);font-size:12.5px;margin-top:5px}
.note{color:var(--mu);font-size:13.5px;margin-top:22px;max-width:900px}
.note.teal{color:var(--teal);margin-top:6px}
.soon{margin-top:34px;border-top:1px solid var(--line);padding-top:22px}
.soon-h{color:var(--teal);font-weight:700;font-size:16px;letter-spacing:.08em}
.soon-t{color:var(--mu);font-size:13px;margin-top:8px}

/* contacts */
.contacts{max-width:1180px;margin:0 auto;padding:84px 22px 70px;border-top:1px solid var(--line)}
.contacts h2{font-size:clamp(26px,4vw,38px);font-weight:600;margin-top:14px}
.cgrid{display:grid;grid-template-columns:1fr 1.2fr;gap:54px;margin-top:10px}
.cphone{display:block;font-family:'Montserrat';font-weight:600;font-size:30px;color:var(--teal)}
.cmail{display:block;font-size:18px;margin-top:12px;color:var(--wh)}
#cform{display:flex;flex-direction:column;gap:14px}
#cform input,#cform textarea{background:var(--card);border:1px solid var(--line);border-radius:10px;
  color:var(--wh);padding:13px 16px;font-size:14.5px;font-family:inherit;resize:vertical}
#cform input:focus,#cform textarea:focus{outline:none;border-color:var(--teal);box-shadow:0 0 0 3px rgba(94,234,212,.18)}
#cform button{background:var(--teal);color:#06281f;border:0;border-radius:999px;font-weight:700;font-size:15px;
  padding:14px;cursor:pointer;font-family:'Montserrat';transition:transform .15s,box-shadow .15s}
#cform button:hover{transform:translateY(-2px);box-shadow:0 8px 30px rgba(94,234,212,.3)}
#cform button:disabled{opacity:.55;cursor:default;transform:none;box-shadow:none}
.hp{position:absolute;left:-9999px;width:1px;height:1px;opacity:0}
.fstatus{font-size:14px;min-height:20px}
.fstatus.ok{color:var(--teal)}
.fstatus.err{color:#fda4af}

/* footer */
footer{border-top:1px solid var(--line);padding:34px 22px 44px;text-align:center}
footer .hero-brands{font-size:13px;color:var(--mu)}
.foot-l{margin-top:14px;color:var(--mu);font-size:12.5px;letter-spacing:.14em}

/* reveal */
.rv{opacity:0;transform:translateY(26px);transition:opacity .7s ease,transform .7s ease}
.rv.in{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){.rv{opacity:1;transform:none;transition:none}}

/* mobile */
@media (max-width:960px){
  .grid2,.cgrid{grid-template-columns:1fr}
  .cards.c5{grid-template-columns:repeat(3,1fr)}
  .cards.c4{grid-template-columns:repeat(2,1fr)}
  .hdr nav{display:none}
  .hcol+.hcol{border-left:0}
  .hcol{flex:1 1 40%}
}