/* ============================================================
   Bluechip & Co. Holdings — Global Design System
   Dark / Futuristic / Tech
   ============================================================ */

:root {
  /* Core palette */
  --bg-0: #05070f;
  --bg-1: #0a0e1c;
  --bg-2: #0f1530;
  --surface: rgba(255, 255, 255, 0.03);
  --surface-2: rgba(255, 255, 255, 0.05);
  --border: rgba(120, 150, 255, 0.14);
  --border-strong: rgba(120, 150, 255, 0.32);

  /* Brand accents */
  --accent: #4f7cff;       /* electric blue */
  --accent-2: #22d3ee;     /* cyan */
  --accent-3: #a855f7;     /* violet */
  --gold: #d8b46a;         /* premium gold */
  --green: #34d399;

  /* Text */
  --text: #eef2ff;
  --text-dim: #aab4d4;
  --text-mute: #6b7699;

  /* Gradients */
  --grad-brand: linear-gradient(120deg, #4f7cff 0%, #22d3ee 50%, #a855f7 100%);
  --grad-gold: linear-gradient(120deg, #f0d493, #c89b4d);
  --grad-text: linear-gradient(100deg, #ffffff 0%, #9ec0ff 60%, #22d3ee 100%);

  --radius: 18px;
  --radius-sm: 12px;
  --maxw: 1200px;
  --nav-h: 72px;

  --font-sans: "Inter", "Helvetica Neue", "PingFang SC", "Microsoft YaHei", -apple-system, BlinkMacSystemFont, "Segoe UI", system-ui, sans-serif;
  --shadow-glow: 0 0 0 1px rgba(120,150,255,.12), 0 30px 60px -25px rgba(79,124,255,.5);
}

/* ---------- Reset ---------- */
* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  font-family: var(--font-sans);
  background: var(--bg-0);
  color: var(--text);
  line-height: 1.65;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}
a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }
ul { list-style: none; }
section { position: relative; }

/* ---------- Ambient background ---------- */
.bg-fx {
  position: fixed; inset: 0; z-index: -2; pointer-events: none;
  background:
    radial-gradient(800px 500px at 12% -5%, rgba(79,124,255,.22), transparent 60%),
    radial-gradient(700px 500px at 95% 8%, rgba(168,85,247,.16), transparent 60%),
    radial-gradient(900px 700px at 50% 110%, rgba(34,211,238,.14), transparent 60%),
    var(--bg-0);
}
.bg-grid {
  position: fixed; inset: 0; z-index: -1; pointer-events: none; opacity: .35;
  background-image:
    linear-gradient(rgba(120,150,255,.06) 1px, transparent 1px),
    linear-gradient(90deg, rgba(120,150,255,.06) 1px, transparent 1px);
  background-size: 56px 56px;
  mask-image: radial-gradient(ellipse 80% 60% at 50% 0%, #000 30%, transparent 80%);
}

/* ---------- Layout ---------- */
.container { width: 100%; max-width: var(--maxw); margin: 0 auto; padding: 0 28px; }
.section-pad { padding: 110px 0; }
.section-pad-sm { padding: 70px 0; }

/* ---------- Navbar ---------- */
.nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  height: var(--nav-h);
  display: flex; align-items: center;
  backdrop-filter: blur(14px);
  background: rgba(5,7,15,.55);
  border-bottom: 1px solid transparent;
  transition: background .3s, border-color .3s;
}
.nav.scrolled { background: rgba(5,7,15,.85); border-bottom-color: var(--border); }
.nav .container { display: flex; align-items: center; justify-content: space-between; }
.brand { display: flex; align-items: center; gap: 12px; font-weight: 700; letter-spacing: .3px; }
.brand .logo-mark {
  width: 34px; height: 34px; border-radius: 9px;
  background: var(--grad-brand);
  display: grid; place-items: center; font-weight: 800; color: #051; font-size: 15px;
  color: #04122e;
  box-shadow: 0 6px 18px -6px rgba(79,124,255,.8);
}
.brand .logo-text { display: flex; flex-direction: column; line-height: 1.05; }
.brand .logo-text b { font-size: 16px; }
.brand .logo-text span { font-size: 10.5px; color: var(--text-mute); letter-spacing: 2px; text-transform: uppercase; }

.nav-links { display: flex; align-items: center; gap: 6px; }
.nav-links a {
  font-size: 14px; color: var(--text-dim); padding: 9px 14px; border-radius: 10px;
  transition: color .2s, background .2s; white-space: nowrap;
}
.nav-links a:hover { color: var(--text); background: var(--surface-2); }
.nav-links a.active { color: #fff; background: var(--surface-2); }

.nav-tools { display: flex; align-items: center; gap: 10px; }
.lang-toggle {
  display: inline-flex; align-items: center; border: 1px solid var(--border);
  border-radius: 999px; overflow: hidden; font-size: 12.5px; font-weight: 600;
}
.lang-toggle button {
  background: transparent; color: var(--text-mute); border: 0; cursor: pointer;
  padding: 7px 13px; font-family: inherit; font-weight: 600; transition: .2s;
}
.lang-toggle button.on { background: var(--grad-brand); color: #04122e; }
.ticker-pill {
  display: inline-flex; align-items: center; gap: 7px; font-size: 12.5px;
  border: 1px solid var(--border); border-radius: 999px; padding: 6px 13px; color: var(--text-dim);
}
.ticker-pill .dot { width: 7px; height: 7px; border-radius: 50%; background: var(--green); box-shadow: 0 0 10px var(--green); }

.burger { display: none; flex-direction: column; gap: 5px; background: none; border: 0; cursor: pointer; padding: 8px; }
.burger span { width: 22px; height: 2px; background: var(--text); border-radius: 2px; transition: .3s; }

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex; align-items: center; gap: 9px; cursor: pointer;
  font-family: inherit; font-size: 14.5px; font-weight: 600;
  padding: 13px 24px; border-radius: 12px; border: 1px solid transparent;
  transition: transform .2s, box-shadow .2s, background .2s; white-space: nowrap;
}
.btn:hover { transform: translateY(-2px); }
.btn-primary { background: var(--grad-brand); color: #04122e; box-shadow: 0 12px 30px -12px rgba(79,124,255,.8); }
.btn-primary:hover { box-shadow: 0 18px 40px -12px rgba(79,124,255,.95); }
.btn-ghost { border-color: var(--border-strong); color: var(--text); background: var(--surface); }
.btn-ghost:hover { background: var(--surface-2); border-color: var(--accent); }
.btn .arrow { transition: transform .2s; }
.btn:hover .arrow { transform: translateX(3px); }

/* ---------- Headings / typography ---------- */
.eyebrow {
  display: inline-flex; align-items: center; gap: 8px;
  font-size: 12.5px; font-weight: 700; letter-spacing: 2.5px; text-transform: uppercase;
  color: var(--accent-2); margin-bottom: 18px;
}
.eyebrow::before { content: ""; width: 26px; height: 1.5px; background: var(--accent-2); display: inline-block; }
h1, h2, h3 { line-height: 1.12; letter-spacing: -.02em; font-weight: 760; }
.h-xl { font-size: clamp(2.5rem, 5.5vw, 4.4rem); font-weight: 800; }
.h-lg { font-size: clamp(2rem, 4vw, 3rem); }
.h-md { font-size: clamp(1.4rem, 2.4vw, 1.9rem); }
.gradient-text { background: var(--grad-text); -webkit-background-clip: text; background-clip: text; color: transparent; }
.lead { font-size: clamp(1.02rem, 1.5vw, 1.22rem); color: var(--text-dim); max-width: 720px; }
.section-head { max-width: 760px; margin-bottom: 56px; }
.section-head.center { margin-left: auto; margin-right: auto; text-align: center; }
.muted { color: var(--text-dim); }

/* ---------- Cards ---------- */
.card {
  background: linear-gradient(160deg, var(--surface-2), var(--surface));
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px;
  transition: transform .3s, border-color .3s, box-shadow .3s;
  position: relative; overflow: hidden;
}
.card:hover { transform: translateY(-6px); border-color: var(--border-strong); box-shadow: var(--shadow-glow); }
.card .ic {
  width: 52px; height: 52px; border-radius: 14px; display: grid; place-items: center;
  background: linear-gradient(150deg, rgba(79,124,255,.18), rgba(34,211,238,.08));
  border: 1px solid var(--border-strong); margin-bottom: 18px;
  color: #bcd2ff;
  box-shadow: inset 0 0 18px rgba(79,124,255,.12);
}
.card .ic svg { width: 25px; height: 25px; display: block; stroke: currentColor; fill: none; stroke-width: 1.6; stroke-linecap: round; stroke-linejoin: round; }
.card:hover .ic { color: #fff; border-color: var(--accent); }
.ring svg { width: 30px; height: 30px; display: block; stroke: var(--accent-2); fill: none; stroke-width: 1.6; stroke-linecap: round; stroke-linejoin: round; }
.card h3 { font-size: 1.2rem; margin-bottom: 4px; }
.card .sub { font-size: 12.5px; color: var(--accent-2); font-weight: 600; letter-spacing: .5px; margin-bottom: 12px; }
.card p { color: var(--text-dim); font-size: 14.5px; }

.grid { display: grid; gap: 22px; }
.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }

/* ---------- Stats ---------- */
.stat-row { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
.stat {
  border: 1px solid var(--border); border-radius: var(--radius-sm);
  padding: 24px; background: var(--surface); text-align: left;
}
.stat .num { font-size: clamp(1.9rem, 3.2vw, 2.7rem); font-weight: 800; background: var(--grad-text); -webkit-background-clip: text; background-clip: text; color: transparent; }
.stat .lbl { font-size: 13px; color: var(--text-dim); margin-top: 6px; }

/* ---------- Hero ---------- */
.hero { padding-top: calc(var(--nav-h) + 90px); padding-bottom: 90px; position: relative; }
.hero .tag {
  display: inline-flex; align-items: center; gap: 9px; font-size: 13px;
  border: 1px solid var(--border); background: var(--surface); border-radius: 999px;
  padding: 8px 16px; color: var(--text-dim); margin-bottom: 26px;
}
.hero .tag b { color: var(--accent-2); }
.hero h1 { margin-bottom: 24px; }
.hero .lead { margin-bottom: 36px; }
.hero-actions { display: flex; gap: 14px; flex-wrap: wrap; }

/* chip list */
.chips { display: flex; flex-wrap: wrap; gap: 10px; }
.chip {
  font-size: 13px; color: var(--text-dim); border: 1px solid var(--border);
  background: var(--surface); border-radius: 999px; padding: 8px 15px;
  display: inline-flex; align-items: center; gap: 8px;
}
.chip .dt { width: 6px; height: 6px; border-radius: 50%; background: var(--accent); }

/* ---------- Pillar / closed loop ---------- */
.pillar { text-align: center; }
.pillar .ring {
  width: 64px; height: 64px; margin: 0 auto 16px; border-radius: 50%;
  display: grid; place-items: center; font-size: 26px;
  background: var(--surface-2); border: 1px solid var(--border-strong);
  box-shadow: inset 0 0 20px rgba(79,124,255,.18);
}

/* ---------- Asset cards (M&A) ---------- */
.asset { padding: 30px; }
.asset .badge {
  display: inline-block; font-size: 11.5px; font-weight: 700; letter-spacing: 1px;
  padding: 5px 11px; border-radius: 999px; margin-bottom: 16px; text-transform: uppercase;
}
.b-ai { background: rgba(79,124,255,.16); color: #9ec0ff; border: 1px solid rgba(79,124,255,.3); }
.b-compute { background: rgba(34,211,238,.14); color: #7fe7f5; border: 1px solid rgba(34,211,238,.3); }
.b-energy { background: rgba(216,180,106,.16); color: var(--gold); border: 1px solid rgba(216,180,106,.32); }
.asset h3 { font-size: 1.35rem; margin-bottom: 6px; }
.asset .role { font-size: 13px; color: var(--text-mute); margin-bottom: 16px; }
.asset .kv { display: flex; gap: 8px; align-items: baseline; padding: 9px 0; border-top: 1px solid var(--border); font-size: 14px; }
.asset .kv b { color: var(--text); }
.asset .strat { margin-top: 16px; font-size: 13.5px; color: var(--text-dim); border-left: 2px solid var(--accent); padding-left: 14px; }

/* ---------- Timeline ---------- */
.timeline { position: relative; padding-left: 28px; }
.timeline::before { content: ""; position: absolute; left: 6px; top: 6px; bottom: 6px; width: 2px; background: linear-gradient(var(--accent), var(--accent-3)); }
.tl-item { position: relative; padding: 0 0 34px 26px; }
.tl-item::before { content: ""; position: absolute; left: -27px; top: 4px; width: 14px; height: 14px; border-radius: 50%; background: var(--bg-0); border: 3px solid var(--accent); box-shadow: 0 0 12px var(--accent); }
.tl-item .date { font-size: 13px; font-weight: 700; color: var(--accent-2); }
.tl-item h4 { font-size: 1.05rem; margin: 4px 0 6px; }
.tl-item p { font-size: 14px; color: var(--text-dim); }

/* ---------- Team ---------- */
.member { text-align: center; padding: 26px 18px; }
.member .av {
  width: 70px; height: 70px; border-radius: 50%; margin: 0 auto 16px;
  background: var(--grad-brand); display: grid; place-items: center;
  font-size: 24px; font-weight: 800; color: #04122e;
}
.member h4 { font-size: 1.05rem; }
.member .pos { font-size: 12.5px; color: var(--accent-2); font-weight: 600; letter-spacing: 1px; text-transform: uppercase; margin: 3px 0 8px; }
.member p { font-size: 13px; color: var(--text-dim); }

/* ---------- Table ---------- */
.tbl-wrap { overflow-x: auto; border: 1px solid var(--border); border-radius: var(--radius); }
table.fin { width: 100%; border-collapse: collapse; font-size: 14.5px; min-width: 520px; }
table.fin th, table.fin td { padding: 15px 20px; text-align: right; border-bottom: 1px solid var(--border); }
table.fin th:first-child, table.fin td:first-child { text-align: left; }
table.fin thead th { color: var(--accent-2); font-size: 13px; letter-spacing: .5px; text-transform: uppercase; background: var(--surface); }
table.fin tbody tr:hover { background: var(--surface); }
table.fin tbody tr:last-child td { border-bottom: 0; }
table.fin .hl { color: #fff; font-weight: 700; }

/* ---------- List items with check ---------- */
.flist { display: grid; gap: 14px; }
.flist li { display: flex; gap: 13px; align-items: flex-start; font-size: 15px; color: var(--text-dim); }
.flist .mk { flex: 0 0 22px; height: 22px; border-radius: 6px; background: var(--surface-2); border: 1px solid var(--border-strong); display: grid; place-items: center; color: var(--accent-2); font-size: 12px; margin-top: 2px; }
.flist b { color: var(--text); }

/* ---------- Callout / disclaimer ---------- */
.callout {
  border: 1px solid var(--border); border-left: 3px solid var(--gold);
  background: rgba(216,180,106,.05); border-radius: var(--radius-sm);
  padding: 22px 24px; font-size: 13px; color: var(--text-mute); line-height: 1.7;
}
.callout b { color: var(--text-dim); }

/* ---------- CTA band ---------- */
.cta-band {
  border: 1px solid var(--border-strong); border-radius: 26px; padding: 60px;
  text-align: center; position: relative; overflow: hidden;
  background: linear-gradient(140deg, rgba(79,124,255,.12), rgba(168,85,247,.08));
}
.cta-band h2 { margin-bottom: 16px; }
.cta-band .hero-actions { justify-content: center; }

/* ---------- Footer ---------- */
.footer { border-top: 1px solid var(--border); padding: 64px 0 36px; margin-top: 40px; }
.footer .cols { display: grid; grid-template-columns: 1.6fr 1fr 1fr 1fr; gap: 36px; margin-bottom: 44px; }
.footer h5 { font-size: 12.5px; letter-spacing: 1.5px; text-transform: uppercase; color: var(--text-mute); margin-bottom: 16px; }
.footer a, .footer p { font-size: 14px; color: var(--text-dim); margin-bottom: 10px; transition: color .2s; }
.footer a:hover { color: var(--text); }
.footer .brand { margin-bottom: 16px; }
.footer .copy { border-top: 1px solid var(--border); padding-top: 26px; font-size: 12.5px; color: var(--text-mute); display: flex; justify-content: space-between; flex-wrap: wrap; gap: 12px; }

/* ---------- Page hero (inner pages) ---------- */
.page-hero { padding-top: calc(var(--nav-h) + 80px); padding-bottom: 56px; }
.page-hero h1 { margin: 18px 0; }

/* ---------- Reveal animation ---------- */
.reveal { opacity: 0; transform: translateY(26px); transition: opacity .7s cubic-bezier(.2,.7,.2,1), transform .7s cubic-bezier(.2,.7,.2,1); }
.reveal.in { opacity: 1; transform: none; }

/* ---------- Lang visibility ---------- */
[data-lang-en] { display: none; }
html[lang="en"] [data-lang-en] { display: revert; }
html[lang="en"] [data-lang-zh] { display: none; }

/* ---------- Divider label ---------- */
.kicker-num { font-size: clamp(3rem,8vw,6rem); font-weight: 800; line-height: 1; color: transparent; -webkit-text-stroke: 1.5px rgba(120,150,255,.3); }

/* ---------- Responsive ---------- */
@media (max-width: 980px) {
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
  .grid-3 { grid-template-columns: repeat(2, 1fr); }
  .stat-row { grid-template-columns: repeat(2, 1fr); }
  .footer .cols { grid-template-columns: 1fr 1fr; }
  .cta-band { padding: 44px 26px; }
}
@media (max-width: 760px) {
  .nav-links { display: none; }
  .burger { display: flex; }
  .nav-links.open {
    display: flex; flex-direction: column; align-items: stretch;
    position: absolute; top: var(--nav-h); left: 0; right: 0;
    background: rgba(5,7,15,.97); border-bottom: 1px solid var(--border);
    padding: 14px 20px; gap: 4px; backdrop-filter: blur(14px);
  }
  .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; }
  .stat-row { grid-template-columns: 1fr 1fr; }
  .footer .cols { grid-template-columns: 1fr; }
  .section-pad { padding: 72px 0; }
  .ticker-pill { display: none; }
  .cta-band { padding: 36px 20px; }
}