:root{
  --bg:#ffffff; --surface:#ffffff; --surface-2:#f6f9fc;
  --fg:#0a2540; --muted:#425466; --line:#e6e9ef;
  --accent:#ff5722; --accent-ink:#ffffff; --accent-text:#d84315;
  --font-display:'Titillium Web',system-ui,sans-serif;
  --font-body:'Inter',system-ui,-apple-system,sans-serif;
  --font-mono:ui-monospace,'IBM Plex Mono',Menlo,monospace;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--bg);color:var(--fg);
  font:400 16px/1.65 var(--font-body);-webkit-text-size-adjust:100%;
  -webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility}
h1,h2,h3{font-family:var(--font-display);font-weight:700;line-height:1.12;margin:0;
  text-wrap:balance;letter-spacing:-.015em}
p{margin:0}
a{color:var(--accent-text)}
code{font-family:var(--font-mono);font-size:.88em}
::selection{background:rgba(255,87,34,.14)}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px}
.wrap{max-width:1080px;margin-inline:auto;padding-inline:24px}
.eyebrow{font:600 11px/1.2 var(--font-mono);letter-spacing:.12em;text-transform:uppercase;color:var(--muted)}
.lede{color:var(--muted);max-width:58ch;font-size:17.5px}
.small{font-size:14px;color:var(--muted)}

:lang(zh-CN) h1,:lang(zh-CN) h2,:lang(zh-CN) h3{font-family:'PingFang SC','Microsoft YaHei','Noto Sans SC',system-ui,sans-serif;letter-spacing:0}
:lang(vi) h1,:lang(vi) h2,:lang(vi) h3{font-family:'Inter',system-ui,sans-serif}

/* header */
.top{border-bottom:1px solid var(--line);background:rgba(255,255,255,.92);
  backdrop-filter:blur(8px);position:sticky;top:0;z-index:10}
.top .wrap{display:flex;align-items:center;justify-content:space-between;gap:16px;padding-block:14px}
.logo{font:700 22px/1 var(--font-display);text-decoration:none;color:var(--fg);white-space:nowrap}
.logo i{color:var(--accent);font-style:normal}
.langs{display:flex;gap:2px;overflow-x:auto;scrollbar-width:none}
.langs a{font:500 13px/1 var(--font-body);color:var(--muted);text-decoration:none;
  padding:8px 11px;border-radius:6px;white-space:nowrap;transition:color .15s,background .15s}
.langs a:hover{color:var(--fg);background:var(--surface-2)}
.langs a.on{color:var(--fg);font-weight:600}
.tagline{font:600 10px/1 var(--font-mono);letter-spacing:.1em;text-transform:uppercase;color:var(--muted);white-space:nowrap}

.hero{padding-block:72px 48px;display:grid;gap:22px}
.split{display:grid;grid-template-columns:minmax(0,1.05fr) minmax(0,1fr);gap:48px;align-items:center}
.split h1{font-size:clamp(30px,4.6vw,50px)}
.split .eyebrow{margin-bottom:14px;display:block}
.hero-center{padding-block:64px 40px;display:grid;gap:24px;justify-items:center;text-align:center}
.hero-center h1{font-size:clamp(30px,5.2vw,54px);max-width:20ch}
.mapcap{font:400 11px/1.5 var(--font-mono);color:var(--muted)}

/* sections */
.s{padding-block:56px;border-top:1px solid var(--line);display:grid;gap:24px}
.band{background:var(--surface-2);border:1px solid var(--line);border-radius:10px;
  padding:20px 24px;text-align:center;font:600 15px var(--font-body);color:var(--fg)}
.cards{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:14px;list-style:none;margin:0;padding:0}
.cards li{border:1px solid var(--line);border-radius:10px;padding:22px;display:grid;gap:6px;align-content:start;
  background:var(--surface);transition:border-color .18s,transform .18s}
.cards li:hover{border-color:#c9d2e0;transform:translateY(-2px)}
.cards b{font-family:var(--font-display);font-size:18px}
.cards span{color:var(--muted);font-size:15px}
.steps{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:14px;list-style:none;counter-reset:st;margin:0;padding:0}
.steps li{position:relative;border:1px solid var(--line);border-radius:10px;padding:22px;display:grid;gap:6px;align-content:start;background:var(--surface)}
.steps li::before{counter-increment:st;content:counter(st);font:600 13px var(--font-mono);
  width:28px;height:28px;border-radius:50%;border:1px solid var(--line);display:grid;place-items:center;
  color:var(--accent-text);margin-bottom:4px;background:var(--surface-2)}
.steps b{font-family:var(--font-display);font-size:17px}
.steps span{color:var(--muted);font-size:14.5px}

/* buttons */
.btn{display:inline-block;justify-self:start;background:var(--accent);color:var(--accent-ink);
  font:600 15px var(--font-body);padding:12px 24px;border-radius:8px;text-decoration:none;border:0;cursor:pointer;
  box-shadow:0 1px 2px rgba(10,37,64,.12);transition:filter .15s,transform .15s}
.btn:hover{filter:brightness(.95);transform:translateY(-1px)}
.btn-o{display:inline-block;background:#fff;border:1px solid var(--fg);color:var(--fg);
  font:600 15px var(--font-body);padding:12px 24px;border-radius:8px;text-decoration:none;transition:background .15s}
.btn-o:hover{background:var(--surface-2)}

/* contact */
.qrbox{width:132px;height:132px;border:1.5px dashed var(--line);border-radius:10px;
  display:grid;place-items:center;text-align:center;padding:10px;
  font:500 11px/1.5 var(--font-mono);color:var(--muted);background:var(--surface-2)}
.contact-row{display:flex;flex-wrap:wrap;gap:20px;align-items:center}
.mail{font:600 17px var(--font-body);color:var(--fg);text-decoration:none}
.mail:hover{color:var(--accent-text)}

/* footer */
footer{border-top:1px solid var(--line);margin-top:8px}
footer .wrap{padding-block:36px;display:grid;gap:18px}
  display:grid;gap:2px;background:var(--surface);transition:border-color .18s,transform .18s}
.foot-small{display:flex;flex-wrap:wrap;gap:8px 22px;justify-content:space-between}

@media (max-width:860px){
  .split{grid-template-columns:1fr;gap:28px}
  .steps{grid-template-columns:1fr}
  .hero{padding-block:48px 32px}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation:none!important;transition:none!important}
  .logos{-webkit-mask-image:none;mask-image:none}
  .logos-track{width:auto;flex-wrap:wrap;justify-content:center}
}

/* hero photo */
.photo-frame{margin:0;display:grid;gap:10px}
.photo-frame img{display:block;width:100%;height:auto;border-radius:16px;
  border:1px solid var(--line);box-shadow:0 18px 44px rgba(10,37,64,.13)}

/* logo carousel */
.logos-sec{gap:18px}
.logos-eyebrow{justify-self:center}
.logos{overflow:hidden;padding-block:4px;
  -webkit-mask-image:linear-gradient(90deg,transparent,#000 10%,#000 90%,transparent);
  mask-image:linear-gradient(90deg,transparent,#000 10%,#000 90%,transparent)}
.logos-track{display:flex;gap:16px;width:max-content;animation:marquee 36s linear infinite}
.logos:hover .logos-track{animation-play-state:paused}
@keyframes marquee{to{transform:translateX(-50%)}}
.logo-chip{flex:0 0 auto;background:#fff;border:1px solid var(--line);border-radius:10px;
  padding:14px 22px;display:flex;align-items:center}
.logo-chip img,.logo-chip svg{height:36px;width:auto;max-width:150px;object-fit:contain}