/* Amploria Limited — company site (amploria.ai)
   Dark theme · zero dependencies · mobile first
   ⚠️ Copy discipline: no investment advice / no asset management / no crypto wording.
   See §十三 A0 of the onboarding SSOT for the approved wording list. */

:root{
  --bg:#0B0F14; --bg-2:#0D131B;
  --surface:#121A24; --surface-2:#16202C;
  --line:rgba(255,255,255,.09); --line-2:rgba(255,255,255,.16);
  --tx:#E7EEF6; --tx-2:#A9B7C6; --tx-3:#78889A;
  --ac:#4EA1FF; --ac-2:#22D3A6;
  --ac-soft:rgba(78,161,255,.10); --ac-soft-2:rgba(34,211,166,.10);
  --r:14px; --maxw:1080px;
}

*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;background:var(--bg);color:var(--tx);
  font:16px/1.72 -apple-system,BlinkMacSystemFont,"Segoe UI","Noto Sans HK","PingFang HK","Microsoft JhengHei",Roboto,Helvetica,Arial,sans-serif;
  -webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
p{margin:0 0 16px}
h1,h2,h3{line-height:1.28;margin:0 0 16px;letter-spacing:-.015em;font-weight:650}
h1{font-size:clamp(30px,4.4vw,46px)}
h2{font-size:clamp(23px,2.7vw,31px)}
h3{font-size:18px;margin-bottom:8px}
ul{margin:0 0 16px;padding-left:20px}
li{margin:6px 0;color:var(--tx-2)}
li strong{color:var(--tx)}
hr{border:0;border-top:1px solid var(--line);margin:56px 0}

.wrap{max-width:var(--maxw);margin:0 auto;padding:0 24px}
.narrow{max-width:820px}
.center{text-align:center}
.muted{color:var(--tx-2)}
.small{font-size:14px}
.tiny{font-size:12.5px;color:var(--tx-3)}

/* ---------- header ---------- */
.hd{position:sticky;top:0;z-index:20;background:rgba(11,15,20,.82);
  backdrop-filter:saturate(180%) blur(14px);border-bottom:1px solid var(--line)}
.hd-in{display:flex;align-items:center;justify-content:space-between;height:66px}
.brand{display:flex;align-items:center;gap:10px;font-weight:650;letter-spacing:-.01em;font-size:17px}
.dot{width:11px;height:11px;border-radius:3px;
  background:linear-gradient(135deg,var(--ac),var(--ac-2));box-shadow:0 0 14px rgba(78,161,255,.5)}
.nav{display:flex;align-items:center;gap:26px;font-size:14.5px}
.nav a{color:var(--tx-2);transition:color .15s}
.nav a:hover{color:var(--tx)}
.nav a.on{color:var(--tx)}
@media(max-width:720px){.nav{gap:14px;font-size:13.5px}.nav .btn{display:none}}

/* ---------- buttons ---------- */
.btn{display:inline-flex;align-items:center;gap:8px;padding:11px 20px;border-radius:10px;
  border:1px solid var(--line-2);background:var(--surface);color:var(--tx);
  font-size:14.5px;font-weight:600;transition:.16s;cursor:pointer}
.btn:hover{border-color:var(--ac);background:var(--surface-2)}
.btn.primary{background:linear-gradient(135deg,var(--ac),#3E7FE0);border-color:transparent;color:#fff}
.btn.primary:hover{filter:brightness(1.08)}
.btn.sm{padding:8px 15px;font-size:13.5px}
.btn-ghost{background:transparent}

/* ---------- hero ---------- */
.hero{padding:88px 0 64px;position:relative;overflow:hidden}
.hero:before{content:"";position:absolute;inset:-40% 30% 40% -10%;
  background:radial-gradient(closest-side,rgba(78,161,255,.16),transparent 70%);pointer-events:none}
.hero:after{content:"";position:absolute;inset:20% -20% -30% 45%;
  background:radial-gradient(closest-side,rgba(34,211,166,.10),transparent 70%);pointer-events:none}
.hero .wrap{position:relative}
.eyebrow{display:inline-flex;align-items:center;gap:8px;padding:6px 13px;border-radius:999px;
  border:1px solid var(--line-2);background:var(--ac-soft);color:#BBD8FF;
  font-size:12.5px;font-weight:600;letter-spacing:.02em;margin-bottom:22px}
.lede{font-size:18.5px;color:var(--tx-2);max-width:720px}
@media(max-width:720px){.hero{padding:56px 0 44px}.lede{font-size:17px}}
.cta{display:flex;gap:12px;flex-wrap:wrap;margin-top:30px}

/* ---------- sections ---------- */
section{padding:56px 0}
.sec-hd{margin-bottom:34px}
.grid{display:grid;gap:18px}
.g2{grid-template-columns:repeat(2,1fr)}
.g3{grid-template-columns:repeat(3,1fr)}
@media(max-width:860px){.g3{grid-template-columns:1fr 1fr}}
@media(max-width:640px){.g2,.g3{grid-template-columns:1fr}}

.card{background:var(--surface);border:1px solid var(--line);border-radius:var(--r);padding:24px}
.card p:last-child{margin-bottom:0}
.card .ic{width:34px;height:34px;border-radius:9px;display:flex;align-items:center;justify-content:center;
  background:var(--ac-soft);color:var(--ac);font-size:17px;margin-bottom:14px;font-weight:700}
.card.alt .ic{background:var(--ac-soft-2);color:var(--ac-2)}

.panel{background:linear-gradient(180deg,var(--surface),var(--bg-2));
  border:1px solid var(--line);border-radius:18px;padding:32px}
@media(max-width:640px){.panel{padding:22px}}

.rows{border-top:1px solid var(--line)}
.row{display:flex;gap:20px;padding:16px 0;border-bottom:1px solid var(--line);align-items:flex-start}
.row .k{flex:0 0 168px;color:var(--tx-3);font-size:13.5px;font-weight:600;padding-top:2px}
.row .v{flex:1;color:var(--tx-2)}
@media(max-width:640px){.row{flex-direction:column;gap:4px}.row .k{flex:none}}

/* ---------- disclaimer strip ---------- */
.note{background:var(--ac-soft);border:1px solid var(--line-2);border-left:3px solid var(--ac);
  border-radius:10px;padding:15px 18px;color:var(--tx-2);font-size:14px}
.note strong{color:var(--tx)}

/* ---------- footer ---------- */
footer{border-top:1px solid var(--line);padding:44px 0 56px;margin-top:24px;background:var(--bg-2)}
.ft-in{display:flex;justify-content:space-between;gap:28px;flex-wrap:wrap}
.ft-links{display:flex;gap:22px;flex-wrap:wrap;font-size:14px}
.ft-links a{color:var(--tx-2)}
.ft-links a:hover{color:var(--tx)}
.ft-legal{margin-top:26px;padding-top:22px;border-top:1px solid var(--line);
  color:var(--tx-3);font-size:12.5px;line-height:1.75}

/* ---------- misc ---------- */
.tag{display:inline-block;padding:4px 11px;border-radius:999px;border:1px solid var(--line-2);
  background:var(--surface-2);color:var(--tx-2);font-size:12.5px;font-weight:600;margin:0 8px 8px 0}
.steps{counter-reset:s;list-style:none;padding:0}
.steps li{counter-increment:s;position:relative;padding-left:46px;margin:0 0 18px;color:var(--tx-2)}
.steps li:before{content:counter(s);position:absolute;left:0;top:0;
  width:30px;height:30px;border-radius:9px;background:var(--ac-soft);color:var(--ac);
  display:flex;align-items:center;justify-content:center;font-size:13.5px;font-weight:700}
.steps li strong{display:block;color:var(--tx);margin-bottom:3px}