/* ===========================================================================
   Qpred — Official Website
   Design system: "Cyber Neon 2.0" — ported from the mobile app (cn-* kit)
   Deep-space navy/violet ground · neon-cyan glass cards · L-corner brackets
   Tokens mirror src/tokens.jsx (cyber/dark) so web + app stay consistent.
   =========================================================================== */

:root {
  /* ---- palette (cyber / dark) ---- */
  --bg:        #0A0618;
  --bg-2:      #0E0820;
  --bg-3:      #0B0420;
  --ink:       #F3ECFF;
  --ink-mut:   #BCA9DC;
  --ink-faint: #8E7DB4;

  --accent:    #00E5D1;  /* neon cyan — primary */
  --violet:    #B14DFF;
  --magenta:   #FF3DC8;
  --gold:      #FFC83D;
  --yes:       #3DFF9D;
  --no:        #FF4D8D;
  --blue:      #8A7DFF;

  --line:      rgba(190,130,255,0.20);
  --line-soft: rgba(190,130,255,0.10);

  --glass:        linear-gradient(155deg, rgba(58,32,98,0.34) 0%, rgba(20,12,34,0.44) 100%);
  --glass-gold:   linear-gradient(155deg, rgba(64,44,22,0.36) 0%, rgba(26,16,36,0.46) 100%);
  --glass-pink:   linear-gradient(155deg, rgba(74,22,58,0.34) 0%, rgba(26,16,36,0.46) 100%);

  /* ---- type ---- */
  --f-sans:    "Inter","Noto Sans SC","PingFang SC","HarmonyOS Sans SC",system-ui,sans-serif;
  --f-display: "Space Grotesk","Orbitron",var(--f-sans);
  --f-mech:    "Orbitron","Space Grotesk",var(--f-sans);
  --f-mono:    "JetBrains Mono","IBM Plex Mono",monospace;

  /* ---- layout ---- */
  --maxw: 1200px;
  --nav-h: 72px;
  --radius: 18px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: var(--f-sans);
  color: var(--ink);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
  line-height: 1.55;
}
a { color: inherit; text-decoration: none; }
img { display: block; max-width: 100%; }
::selection { background: rgba(0,229,209,0.28); color: #fff; }
::-webkit-scrollbar { width: 10px; height: 10px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: rgba(177,77,255,0.3); border-radius: 99px; }

/* ===========================================================================
   Animated atmosphere — drifting neon blooms + perspective grid (fixed layer)
   =========================================================================== */
.atmos {
  position: fixed; inset: 0; z-index: 0; overflow: hidden; pointer-events: none;
  background:
    radial-gradient(ellipse 90% 45% at 50% -6%, rgba(177,77,255,0.30), transparent 62%),
    radial-gradient(ellipse 80% 50% at 100% 12%, rgba(255,61,200,0.20), transparent 58%),
    radial-gradient(ellipse 75% 45% at 0% 30%, rgba(0,229,209,0.14), transparent 58%),
    radial-gradient(ellipse 90% 55% at 50% 108%, rgba(138,125,255,0.18), transparent 60%),
    linear-gradient(180deg, var(--bg-2) 0%, var(--bg) 55%, var(--bg-3) 100%);
}
.atmos__blob { position: absolute; border-radius: 50%; filter: blur(60px); opacity: 0.55; }
.atmos__blob.b1 { top: -10%; left: -8%;  width: 46vw; height: 40vw; background: radial-gradient(circle, var(--violet), transparent 70%); animation: drift 22s ease-in-out infinite; }
.atmos__blob.b2 { top: 18%; right: -12%; width: 44vw; height: 38vw; background: radial-gradient(circle, var(--magenta), transparent 70%); animation: drift 28s ease-in-out infinite reverse; }
.atmos__blob.b3 { bottom: -12%; left: 22%; width: 50vw; height: 40vw; background: radial-gradient(circle, rgba(0,229,209,0.5), transparent 70%); animation: drift 32s ease-in-out infinite; }
.atmos__grid {
  position: absolute; left: -25%; right: -25%; bottom: 0; height: 38vh;
  background-image:
    linear-gradient(rgba(177,77,255,0.22) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0,229,209,0.16) 1px, transparent 1px);
  background-size: 46px 64px;
  transform: perspective(340px) rotateX(64deg); transform-origin: bottom;
  mask-image: linear-gradient(to top, #000, transparent 92%);
  -webkit-mask-image: linear-gradient(to top, #000, transparent 92%);
  animation: gridGlide 5s linear infinite; opacity: 0.4;
}
@keyframes drift {
  0%,100% { transform: translate(0,0) scale(1); }
  33% { transform: translate(5%,4%) scale(1.08); }
  66% { transform: translate(-4%,2%) scale(0.95); }
}
@keyframes gridGlide { 0% { background-position: 0 0; } 100% { background-position: 0 64px; } }

/* ===========================================================================
   Layout primitives
   =========================================================================== */
.wrap { width: 100%; max-width: var(--maxw); margin: 0 auto; padding: 0 28px; position: relative; z-index: 1; }
main { position: relative; z-index: 1; }
.section { padding-block: 96px; position: relative; }
.section--tight { padding-block: 64px; }
.section__head { max-width: 740px; margin: 0 0 44px; }
.section__head.center { margin-left: auto; margin-right: auto; text-align: center; }

/* bilingual kicker — 中文 ENGLISH lockup, mirrors the app headers */
.kicker {
  display: inline-flex; align-items: baseline; gap: 9px;
  font-family: var(--f-mono); font-size: 12px; font-weight: 700;
  letter-spacing: 2px; text-transform: uppercase; color: var(--accent);
  text-shadow: 0 0 12px rgba(0,229,209,0.5); margin-bottom: 18px;
}
.kicker::before { content: ""; width: 22px; height: 1px; background: var(--accent); align-self: center; box-shadow: 0 0 8px var(--accent); }
.kicker .zh { font-family: var(--f-sans); letter-spacing: 1px; color: var(--ink-mut); text-shadow: none; }

h1,h2,h3 { font-family: var(--f-display); font-weight: 700; letter-spacing: -0.01em; line-height: 1.12; margin: 0; text-wrap: balance; }
.h-xl { font-size: clamp(34px, 5.4vw, 62px); }
.h-lg { font-size: clamp(28px, 3.6vw, 42px); }
.h-md { font-size: clamp(22px, 2.4vw, 30px); }
.lead { font-size: clamp(15px, 1.3vw, 18px); color: var(--ink-mut); line-height: 1.7; text-wrap: pretty; }
.muted { color: var(--ink-mut); }
.grad { background: linear-gradient(100deg, var(--accent), var(--violet) 55%, var(--magenta)); -webkit-background-clip: text; background-clip: text; color: transparent; }

/* ===========================================================================
   Neon glass card + corner brackets
   =========================================================================== */
.card {
  position: relative; border-radius: var(--radius); padding: 26px;
  background: var(--glass);
  backdrop-filter: blur(30px) saturate(165%); -webkit-backdrop-filter: blur(30px) saturate(165%);
  border: 1px solid var(--line);
  box-shadow: 0 8px 28px rgba(0,0,0,0.5), inset 0 1px 0 rgba(255,255,255,0.10);
  transform-style: preserve-3d; will-change: transform;
  transition: transform .35s cubic-bezier(.16,1,.3,1), box-shadow .35s, border-color .35s;
}
.card--glow   { border-color: rgba(0,229,209,0.34); box-shadow: 0 8px 28px rgba(0,0,0,0.5), 0 0 34px -10px var(--accent), inset 0 0 32px -18px var(--accent), inset 0 1px 0 rgba(255,255,255,0.08); }
.card--violet { border-color: rgba(177,77,255,0.40); box-shadow: 0 8px 28px rgba(0,0,0,0.5), 0 0 34px -10px var(--violet), inset 0 0 32px -18px var(--violet); }
.card--gold   { background: var(--glass-gold); border-color: rgba(255,200,61,0.40); box-shadow: 0 8px 28px rgba(0,0,0,0.5), 0 0 34px -10px var(--gold), inset 0 0 32px -18px var(--gold); }
.card--pink   { background: var(--glass-pink); border-color: rgba(255,61,200,0.40); box-shadow: 0 8px 28px rgba(0,0,0,0.5), 0 0 34px -10px var(--magenta), inset 0 0 32px -18px var(--magenta); }
.card.hover:hover { transform: translateY(-6px); border-color: rgba(0,229,209,0.5); box-shadow: 0 18px 44px rgba(0,0,0,0.55), 0 0 40px -8px var(--accent), inset 0 1px 0 rgba(255,255,255,0.08); }

/* L-shaped corner brackets */
.card .corner, .bracketed .corner { position: absolute; width: 15px; height: 15px; pointer-events: none; opacity: .85; }
.corner::before, .corner::after { content: ""; position: absolute; background: var(--accent); box-shadow: 0 0 6px var(--accent); }
.corner::before { width: 100%; height: 2px; border-radius: 2px; }
.corner::after  { width: 2px; height: 100%; border-radius: 2px; }
.corner.tl { top: 9px; left: 9px; }    .corner.tl::after { top: 0; left: 0; }      .corner.tl::before { top: 0; left: 0; }
.corner.tr { top: 9px; right: 9px; }   .corner.tr::after { top: 0; right: 0; }     .corner.tr::before { top: 0; right: 0; }
.corner.bl { bottom: 9px; left: 9px; } .corner.bl::after { bottom: 0; left: 0; }   .corner.bl::before { bottom: 0; left: 0; }
.corner.br { bottom: 9px; right: 9px; }.corner.br::after { bottom: 0; right: 0; }  .corner.br::before { bottom: 0; right: 0; }
.card--violet .corner::before, .card--violet .corner::after { background: var(--violet); box-shadow: 0 0 6px var(--violet); }
.card--gold .corner::before, .card--gold .corner::after { background: var(--gold); box-shadow: 0 0 6px var(--gold); }
.card--pink .corner::before, .card--pink .corner::after { background: var(--magenta); box-shadow: 0 0 6px var(--magenta); }

/* ===========================================================================
   Buttons / chips
   =========================================================================== */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  padding: 13px 24px; border-radius: 999px; cursor: pointer; white-space: nowrap;
  font-family: var(--f-mech); font-size: 14px; font-weight: 700; letter-spacing: .4px;
  border: 1.5px solid transparent; transition: transform .2s, box-shadow .3s, background .3s;
}
.btn:active { transform: scale(.97); }
.btn svg { width: 18px; height: 18px; flex-shrink: 0; }
.btn--primary { color: #04121d; background: linear-gradient(135deg, var(--accent), #38f0e0); box-shadow: 0 0 22px -4px var(--accent), inset 0 0 16px -8px #fff; }
.btn--primary:hover { box-shadow: 0 0 34px -2px var(--accent); }
.btn--ghost { color: var(--accent); border-color: var(--accent); background: linear-gradient(135deg, rgba(0,229,209,0.14), rgba(0,229,209,0.05)); box-shadow: 0 0 18px -8px var(--accent), inset 0 0 16px -10px var(--accent); }
.btn--ghost:hover { background: rgba(0,229,209,0.18); }
.btn--violet { color: var(--violet); border-color: var(--violet); background: linear-gradient(135deg, rgba(177,77,255,0.16), rgba(177,77,255,0.05)); box-shadow: 0 0 18px -8px var(--violet); }
.btn--violet:hover { background: rgba(177,77,255,0.22); }
.btn--gold { color: var(--gold); border-color: var(--gold); background: linear-gradient(135deg, rgba(255,200,61,0.16), rgba(255,200,61,0.05)); box-shadow: 0 0 18px -8px var(--gold); }
.btn--lg { padding: 16px 30px; font-size: 15px; }
.btn--sm { padding: 9px 16px; font-size: 12px; }

.chip {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 4px 11px; border-radius: 6px;
  font-family: var(--f-mono); font-size: 11px; font-weight: 700; letter-spacing: .6px;
  color: var(--accent); background: rgba(0,229,209,0.12); border: 1px solid rgba(0,229,209,0.4);
}
.chip--violet { color: var(--violet); background: rgba(177,77,255,0.14); border-color: rgba(177,77,255,0.42); }
.chip--gold   { color: var(--gold);   background: rgba(255,200,61,0.14); border-color: rgba(255,200,61,0.42); }
.chip--pink   { color: var(--no);     background: rgba(255,77,141,0.14); border-color: rgba(255,77,141,0.42); }
.chip .dot { width: 6px; height: 6px; border-radius: 50%; background: currentColor; box-shadow: 0 0 7px currentColor; animation: pulse 1.1s infinite; }
@keyframes pulse { 0%,100% { opacity: 1; } 50% { opacity: .35; } }

.btn-row { display: flex; flex-wrap: wrap; gap: 14px; }

/* ===========================================================================
   Top navigation
   =========================================================================== */
.nav {
  position: sticky; top: 0; z-index: 50; height: var(--nav-h);
  display: flex; align-items: center;
  background: rgba(10,6,24,0.55); backdrop-filter: blur(20px) saturate(150%); -webkit-backdrop-filter: blur(20px) saturate(150%);
  border-bottom: 1px solid var(--line-soft);
}
.nav__inner { display: flex; align-items: center; gap: 28px; width: 100%; max-width: var(--maxw); margin: 0 auto; padding: 0 28px; }
.brand { display: flex; align-items: center; gap: 11px; flex-shrink: 0; }
.brand__logo { width: 34px; height: 34px; border-radius: 9px; filter: drop-shadow(0 0 10px rgba(0,229,209,0.5)); }
.brand__name { font-family: var(--f-mech); font-weight: 800; font-size: 19px; letter-spacing: .5px; }
.brand__name b { color: var(--accent); text-shadow: 0 0 14px rgba(0,229,209,0.55); }
.nav__links { display: flex; align-items: center; gap: 2px; margin-left: auto; }
.nav__links a {
  padding: 8px 13px; border-radius: 9px; font-size: 13.5px; font-weight: 600; color: var(--ink-mut);
  transition: color .2s, background .2s; white-space: nowrap;
}
.nav__links a:hover { color: var(--ink); background: rgba(177,77,255,0.12); }
.nav__links a.active { color: var(--accent); }
.nav__actions { display: flex; align-items: center; gap: 12px; flex-shrink: 0; }

/* language switcher — dropdown (the multilingual entry, preserved) */
.lang { position: relative; font-family: var(--f-mono); }
.lang__btn {
  display: inline-flex; align-items: center; gap: 7px; padding: 7px 11px;
  border: 1px solid var(--line); border-radius: 999px; background: rgba(28,17,56,0.6);
  color: var(--ink-mut); cursor: pointer; font-family: var(--f-mono); font-size: 12px; font-weight: 700;
  transition: color .2s, border-color .2s;
}
.lang__btn:hover { color: var(--ink); border-color: rgba(0,229,209,0.4); }
.lang__btn { white-space: nowrap; }
.lang__btn .globe { width: 15px; height: 15px; opacity: .85; }
.lang__btn .chev { width: 13px; height: 13px; transition: transform .25s; opacity: .7; }
.lang.open .lang__btn .chev { transform: rotate(180deg); }
.lang.open .lang__btn { color: var(--accent); border-color: rgba(0,229,209,0.5); }
.lang__cur { letter-spacing: .3px; }
.lang__menu {
  position: absolute; top: calc(100% + 9px); right: 0; min-width: 196px; padding: 6px;
  border: 1px solid var(--line); border-radius: 14px;
  background: linear-gradient(160deg, rgba(28,17,56,0.97), rgba(14,8,32,0.98));
  backdrop-filter: blur(18px) saturate(150%); -webkit-backdrop-filter: blur(18px) saturate(150%);
  box-shadow: 0 18px 44px rgba(0,0,0,0.55), 0 0 30px -12px var(--accent);
  display: none; flex-direction: column; gap: 1px; z-index: 70; min-width: 212px;
}
.lang.open .lang__menu { display: flex; animation: langIn .2s cubic-bezier(.16,1,.3,1); }
@keyframes langIn { from { opacity: 0; transform: translateY(-6px); } to { opacity: 1; transform: none; } }
.lang__opt {
  display: flex; align-items: center; gap: 10px; padding: 10px 11px; border-radius: 9px;
  background: none; border: none; color: var(--ink); cursor: pointer;
  font-family: var(--f-sans); font-size: 13.5px; font-weight: 600; text-align: left;
}
.lang__opt:hover { background: rgba(177,77,255,0.14); }
.lang__opt-name { display: flex; align-items: center; gap: 8px; flex: 1; white-space: nowrap; }
.lang__opt .code { font-family: var(--f-mono); font-size: 10px; color: var(--ink-faint); letter-spacing: .5px; }
.lang__opt .tick { width: 14px; height: 14px; opacity: 0; color: var(--accent); flex-shrink: 0; }
.lang__opt.on { color: var(--accent); }
.lang__opt.on .code { color: var(--accent); }
.lang__opt.on .tick { opacity: 1; }

.nav__burger { display: none; width: 40px; height: 40px; border: 1px solid var(--line); border-radius: 10px; background: rgba(28,17,56,0.6); cursor: pointer; color: var(--ink); align-items: center; justify-content: center; }
.nav__burger svg { width: 20px; height: 20px; }

/* mobile drawer */
.drawer { position: fixed; inset: 0; z-index: 60; display: none; }
.drawer.open { display: block; }
.drawer__scrim { position: absolute; inset: 0; background: rgba(5,3,14,0.7); backdrop-filter: blur(6px); }
.drawer__panel {
  position: absolute; top: 0; right: 0; bottom: 0; width: min(82vw, 340px);
  background: linear-gradient(160deg, rgba(28,17,56,0.96), rgba(14,8,32,0.98));
  border-left: 1px solid var(--line); padding: 24px; overflow-y: auto;
  display: flex; flex-direction: column; gap: 6px;
  animation: slideIn .3s cubic-bezier(.16,1,.3,1);
}
@keyframes slideIn { from { transform: translateX(100%); } to { transform: translateX(0); } }
.drawer__panel a { padding: 13px 14px; border-radius: 11px; font-size: 16px; font-weight: 600; color: var(--ink); }
.drawer__panel a:hover { background: rgba(177,77,255,0.14); color: var(--accent); }
.drawer__panel .btn { margin-top: 8px; }
/* language switch inside the drawer — expands inline (static menu), so phones
   can switch language even though the top-bar switcher is hidden ≤560 */
.drawer__lang { margin-top: 16px; padding-top: 16px; border-top: 1px solid var(--line); display: flex; flex-direction: column; gap: 10px; }
.drawer__lang-label { font-family: var(--f-mono); font-size: 11px; font-weight: 700; letter-spacing: 1px; text-transform: uppercase; color: var(--ink-faint); }
.drawer__lang .lang { width: 100%; }
.drawer__lang .lang__btn { display: flex; width: 100%; justify-content: space-between; }
.drawer__lang .lang__menu { position: static; display: none; width: 100%; min-width: 0; margin-top: 8px; box-shadow: none; max-height: 252px; overflow-y: auto; }
.drawer__lang .lang.open .lang__menu { display: flex; }

/* ===========================================================================
   Hero
   =========================================================================== */
.hero { padding-block: 72px 64px; }
.hero__grid { display: grid; grid-template-columns: 1.15fr 0.85fr; gap: 40px; align-items: center; }
.hero__tag {
  display: inline-flex; align-items: center; gap: 8px; padding: 6px 14px; border-radius: 999px;
  border: 1px solid rgba(0,229,209,0.4); background: rgba(0,229,209,0.08);
  font-family: var(--f-mono); font-size: 12px; letter-spacing: 1px; color: var(--accent);
  text-transform: uppercase; margin-bottom: 22px;
}
.hero h1 { margin-bottom: 22px; }
.hero__sub { max-width: 560px; margin-bottom: 30px; }
.hero__cues { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 30px; }
.hero__cue { font-family: var(--f-mono); font-size: 12px; color: var(--ink-mut); padding: 6px 12px; border: 1px solid var(--line); border-radius: 8px; background: rgba(28,17,56,0.4); }
.hero__cue span { color: var(--accent); }
.hero__art { position: relative; display: flex; align-items: center; justify-content: center; min-height: 420px; }
.hero__halo { position: absolute; width: 420px; height: 420px; border-radius: 50%; background: radial-gradient(circle, rgba(0,229,209,0.28), transparent 65%); filter: blur(20px); animation: pulseHalo 5s ease-in-out infinite; }
@keyframes pulseHalo { 0%,100% { transform: scale(1); opacity: .8; } 50% { transform: scale(1.08); opacity: 1; } }
.hero__mascot { position: relative; height: 460px; width: auto; filter: drop-shadow(0 18px 40px rgba(0,0,0,0.6)) drop-shadow(0 0 24px rgba(0,229,209,0.22)); animation: float 6s ease-in-out infinite; }
@keyframes float { 0%,100% { transform: translateY(0); } 50% { transform: translateY(-14px); } }
/* floating market ticker cards around mascot */
.hero__chip-card {
  position: absolute; padding: 11px 14px; border-radius: 14px; background: var(--glass);
  border: 1px solid var(--line); backdrop-filter: blur(14px);
  box-shadow: 0 10px 30px rgba(0,0,0,0.5), 0 0 24px -10px var(--accent);
  font-size: 12px; min-width: 168px; animation: float 7s ease-in-out infinite;
}
.hero__chip-card .q { font-weight: 600; color: var(--ink); margin-bottom: 8px; line-height: 1.35; }
.hero__chip-card .bar { height: 5px; border-radius: 99px; background: rgba(255,255,255,0.08); display: flex; overflow: hidden; }
.hero__chip-card .bar i { display: block; height: 100%; }
.hero__chip-card .pct { display: flex; justify-content: space-between; font-family: var(--f-mono); font-size: 10px; margin-top: 5px; }
.cc-1 { top: 6%; left: -6%; animation-delay: -1s; }
.cc-2 { bottom: 10%; right: -4%; animation-delay: -3s; }

/* ===========================================================================
   Stats strip
   =========================================================================== */
.stats { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; }
.stat { text-align: left; }
.stat__num { font-family: var(--f-mech); font-size: clamp(26px, 3vw, 38px); font-weight: 800; color: var(--ink); text-shadow: 0 0 18px rgba(0,229,209,0.35); }
.stat__num.v { color: var(--violet); text-shadow: 0 0 18px rgba(177,77,255,0.4); }
.stat__num.g { color: var(--gold); text-shadow: 0 0 18px rgba(255,200,61,0.4); }
.stat__num.m { color: var(--magenta); text-shadow: 0 0 18px rgba(255,61,200,0.4); }
.stat__label { font-size: 13px; color: var(--ink-mut); margin-top: 4px; }
.stat__en { font-family: var(--f-mono); font-size: 10px; letter-spacing: 1px; color: var(--ink-faint); text-transform: uppercase; margin-top: 2px; }

/* ===========================================================================
   Grids
   =========================================================================== */
.grid { display: grid; gap: 20px; }
.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }

/* feature/value card */
.feat__icon {
  width: 46px; height: 46px; border-radius: 12px; display: flex; align-items: center; justify-content: center;
  margin-bottom: 16px; border: 1px solid rgba(0,229,209,0.4); background: rgba(0,229,209,0.1);
  color: var(--accent); box-shadow: 0 0 20px -6px var(--accent), inset 0 0 16px -8px var(--accent);
}
.feat__icon svg { width: 24px; height: 24px; }
.feat__icon.v { border-color: rgba(177,77,255,0.42); background: rgba(177,77,255,0.12); color: var(--violet); box-shadow: 0 0 20px -6px var(--violet); }
.feat__icon.g { border-color: rgba(255,200,61,0.42); background: rgba(255,200,61,0.12); color: var(--gold); box-shadow: 0 0 20px -6px var(--gold); }
.feat__icon.m { border-color: rgba(255,61,200,0.42); background: rgba(255,61,200,0.12); color: var(--magenta); box-shadow: 0 0 20px -6px var(--magenta); }
.feat h3 { font-size: 18px; margin-bottom: 9px; font-family: var(--f-display); }
.feat p { font-size: 14px; color: var(--ink-mut); line-height: 1.65; margin: 0; }
.feat__no { font-family: var(--f-mono); font-size: 12px; color: var(--ink-faint); margin-bottom: 10px; letter-spacing: 1px; }

/* numbered step */
.step__no { font-family: var(--f-mech); font-size: 40px; font-weight: 800; color: transparent; -webkit-text-stroke: 1.5px var(--accent); opacity: .8; line-height: 1; margin-bottom: 14px; }

/* category pills */
.cats { display: flex; flex-wrap: wrap; gap: 12px; }
.cat-pill {
  display: inline-flex; align-items: center; gap: 9px; padding: 12px 20px; border-radius: 999px;
  border: 1px solid var(--line); background: rgba(28,17,56,0.45); backdrop-filter: blur(10px);
  font-weight: 600; font-size: 15px; transition: transform .25s, border-color .25s, box-shadow .25s;
}
.cat-pill:hover { transform: translateY(-3px); border-color: rgba(0,229,209,0.5); box-shadow: 0 0 24px -8px var(--accent); }
.cat-pill .en { font-family: var(--f-mono); font-size: 11px; color: var(--ink-faint); letter-spacing: 1px; }
.cat-pill .ic { width: 22px; height: 22px; color: var(--accent); }

/* keyword tags */
.tags { display: flex; flex-wrap: wrap; gap: 12px; }
.tag { padding: 10px 18px; border-radius: 10px; border: 1px solid var(--line); background: rgba(28,17,56,0.4); font-family: var(--f-mech); font-weight: 700; font-size: 14px; letter-spacing: .5px; color: var(--ink); }
.tag.a { color: var(--accent); border-color: rgba(0,229,209,0.34); }
.tag.v { color: var(--violet); border-color: rgba(177,77,255,0.34); }
.tag.g { color: var(--gold); border-color: rgba(255,200,61,0.34); }

/* ===========================================================================
   Split / banner blocks
   =========================================================================== */
.split { display: grid; grid-template-columns: 1fr 1fr; gap: 36px; align-items: center; }
.split__art { position: relative; min-height: 320px; display: flex; align-items: center; justify-content: center; }
.split__art img.mascot { height: 360px; width: auto; filter: drop-shadow(0 16px 36px rgba(0,0,0,0.6)); animation: float 7s ease-in-out infinite; }

/* big CTA band */
.cta-band { position: relative; overflow: hidden; border-radius: 26px; padding: 60px; text-align: center; }
.cta-band .corner { width: 22px; height: 22px; }

/* whitepaper TOC */
.toc { display: grid; grid-template-columns: repeat(2, 1fr); gap: 12px; }
.toc__item { display: flex; align-items: center; gap: 14px; padding: 15px 18px; border-radius: 12px; border: 1px solid var(--line); background: rgba(28,17,56,0.36); transition: border-color .25s, background .25s; }
.toc__item:hover { border-color: rgba(0,229,209,0.45); background: rgba(0,229,209,0.06); }
.toc__no { font-family: var(--f-mech); font-size: 14px; font-weight: 800; color: var(--accent); }
.toc__t { font-size: 15px; font-weight: 600; }

/* ===========================================================================
   FAQ accordion
   =========================================================================== */
.faq { display: flex; flex-direction: column; gap: 12px; }
.faq__item { border: 1px solid var(--line); border-radius: 14px; background: rgba(28,17,56,0.38); overflow: hidden; transition: border-color .25s; }
.faq__item.open { border-color: rgba(0,229,209,0.4); box-shadow: 0 0 28px -12px var(--accent); }
.faq__q { display: flex; align-items: center; justify-content: space-between; gap: 16px; width: 100%; padding: 20px 22px; cursor: pointer; background: none; border: none; color: var(--ink); text-align: left; font-family: var(--f-display); font-size: 16px; font-weight: 600; }
.faq__q .pm { flex-shrink: 0; width: 24px; height: 24px; position: relative; }
.faq__q .pm::before, .faq__q .pm::after { content: ""; position: absolute; top: 50%; left: 50%; transform: translate(-50%,-50%); background: var(--accent); box-shadow: 0 0 6px var(--accent); transition: transform .3s; }
.faq__q .pm::before { width: 14px; height: 2px; }
.faq__q .pm::after  { width: 2px; height: 14px; }
.faq__item.open .pm::after { transform: translate(-50%,-50%) scaleY(0); }
.faq__a { max-height: 0; overflow: hidden; transition: max-height .35s ease; }
.faq__a > div { padding: 0 22px 20px; color: var(--ink-mut); font-size: 14.5px; line-height: 1.7; }

/* ===========================================================================
   Footer
   =========================================================================== */
.footer { position: relative; z-index: 1; border-top: 1px solid var(--line-soft); margin-top: 40px; padding: 60px 0 36px; background: rgba(8,4,20,0.5); backdrop-filter: blur(10px); }
.footer__top { display: grid; grid-template-columns: 1.6fr repeat(4, 1fr); gap: 32px; margin-bottom: 44px; }
.footer__brand .brand { margin-bottom: 16px; }
.footer__brand p { font-size: 13.5px; color: var(--ink-mut); max-width: 320px; line-height: 1.7; }
.footer__col h4 { font-family: var(--f-mono); font-size: 11px; letter-spacing: 1.5px; text-transform: uppercase; color: var(--accent); margin: 0 0 16px; font-weight: 700; }
.footer__col a { display: block; font-size: 13.5px; color: var(--ink-mut); padding: 6px 0; transition: color .2s; }
.footer__col a:hover { color: var(--ink); }
.footer__bottom { display: flex; align-items: center; justify-content: space-between; gap: 18px; padding-top: 26px; border-top: 1px solid var(--line-soft); flex-wrap: wrap; }
.footer__bottom p { font-size: 12.5px; color: var(--ink-faint); margin: 0; }
.footer__store { display: flex; gap: 12px; }
.store-btn { display: inline-flex; align-items: center; gap: 9px; padding: 11px 18px; border-radius: 12px; border: 1px solid var(--line); background: rgba(28,17,56,0.5); transition: border-color .25s, box-shadow .25s; }
.store-btn:hover { border-color: rgba(0,229,209,0.5); box-shadow: 0 0 22px -8px var(--accent); }
.store-btn svg { width: 22px; height: 22px; }
.store-btn b { font-family: var(--f-mech); font-size: 14px; font-weight: 700; display: block; line-height: 1.15; }
.store-btn small { font-size: 10px; color: var(--ink-faint); }

/* download page — platform cards */
.dl-card { display: flex; flex-direction: column; }
.dl-card__head { display: flex; align-items: center; gap: 14px; }
.dl-card__head .feat__icon { margin-bottom: 0; width: 54px; height: 54px; }
.dl-card__head .feat__icon svg { width: 28px; height: 28px; }
.dl-steps { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: 13px; }
.dl-steps li { display: flex; align-items: center; gap: 13px; font-size: 14.5px; color: var(--ink-mut); }
.dl-step__n { flex-shrink: 0; width: 26px; height: 26px; border-radius: 50%; display: flex; align-items: center; justify-content: center; font-family: var(--f-mech); font-size: 12px; font-weight: 800; color: var(--accent); border: 1px solid rgba(0,229,209,0.4); background: rgba(0,229,209,0.1); }
.card--violet .dl-step__n { color: var(--violet); border-color: rgba(177,77,255,0.4); background: rgba(177,77,255,0.12); }
.dl-note { font-family: var(--f-mono); font-size: 11px; color: var(--ink-faint); margin: 16px 0 0; letter-spacing: .2px; line-height: 1.5; }

/* page hero (sub-pages) */
.page-hero { padding-block: 88px 48px; position: relative; }
.page-hero h1 { margin-bottom: 20px; }
.page-hero .lead { max-width: 680px; }

/* divider */
.divider { height: 1px; background: linear-gradient(90deg, transparent, var(--line), transparent); margin: 0; border: none; }

/* ===========================================================================
   Scroll reveal
   =========================================================================== */
.reveal { opacity: 0; transform: translateY(26px); transition: opacity .7s cubic-bezier(.16,1,.3,1), transform .7s cubic-bezier(.16,1,.3,1); }
.reveal.in { opacity: 1; transform: none; }
.reveal[data-d="1"] { transition-delay: .06s; }
.reveal[data-d="2"] { transition-delay: .12s; }
.reveal[data-d="3"] { transition-delay: .18s; }
.reveal[data-d="4"] { transition-delay: .24s; }

/* lang switching is data-driven: site.js fills every [data-i18n] element from
   the QP_I18N dictionary for the active <html data-lang> locale (en → zh
   fallback). The .kicker .zh / .cat-pill .en / .stat__en accents below are
   permanent bilingual design flourishes, shown in every locale. */
.hide-sm { } /* visible by default; hidden on small screens below */

/* ===========================================================================
   Hero cursor spotlight — multicolour neon pool + grid revealed at the cursor
   (user-driven; injected by site.js into .hero / .page-hero)
   =========================================================================== */
.hero, .page-hero { position: relative; }
.hero > *:not(.hero__spot), .page-hero > *:not(.hero__spot) { position: relative; z-index: 1; }
.hero__spot {
  position: absolute; inset: 0; z-index: 0; pointer-events: none; overflow: hidden;
  opacity: 0; transition: opacity .5s ease;
}
.hero.spot-on .hero__spot, .page-hero.spot-on .hero__spot { opacity: 1; }
.hero__spot__glow {
  position: absolute; inset: -12%;
  background:
    radial-gradient(circle 240px at var(--mx,50%) var(--my,42%), rgba(0,229,209,0.24), transparent 60%),
    radial-gradient(circle 330px at calc(var(--mx,50%) + 48px) calc(var(--my,42%) + 18px), rgba(177,77,255,0.19), transparent 62%),
    radial-gradient(circle 290px at calc(var(--mx,50%) - 42px) calc(var(--my,42%) - 28px), rgba(255,61,200,0.16), transparent 62%),
    radial-gradient(circle 200px at calc(var(--mx,50%) + 8px) calc(var(--my,42%) - 8px), rgba(255,255,255,0.10), transparent 55%);
  mix-blend-mode: screen;
}
.hero__spot__grid {
  position: absolute; inset: 0;
  background-image:
    linear-gradient(rgba(0,229,209,0.55) 1px, transparent 1px),
    linear-gradient(90deg, rgba(177,77,255,0.55) 1px, transparent 1px);
  background-size: 30px 30px;
  -webkit-mask: radial-gradient(circle 150px at var(--mx,50%) var(--my,42%), #000, transparent 72%);
          mask: radial-gradient(circle 150px at var(--mx,50%) var(--my,42%), #000, transparent 72%);
  opacity: 0.4;
}

/* ===========================================================================
   Motion / ambient animation  (all gated on prefers-reduced-motion)
   end-state is the static default; animation only adds movement on top
   =========================================================================== */
.grad { background-size: 220% auto; }
.bar > i { transform-origin: left center; }

@media (prefers-reduced-motion: no-preference) {
  /* flowing colour on headline accents */
  .grad { animation: gradFlow 9s ease-in-out infinite; }
  @keyframes gradFlow { 0%, 100% { background-position: 0% center; } 50% { background-position: 100% center; } }

  /* diagonal light sweep across accent glass cards */
  .card--glow, .card--violet, .card--gold, .card--pink { overflow: hidden; }
  .card--glow::after, .card--violet::after, .card--gold::after, .card--pink::after {
    content: ""; position: absolute; top: -12%; bottom: -12%; left: -45%; width: 26%;
    background: linear-gradient(100deg, transparent, rgba(255,255,255,0.09), transparent);
    transform: skewX(-14deg); pointer-events: none; z-index: 0;
    animation: cardSheen 7.5s ease-in-out infinite;
  }
  .card--violet::after { animation-delay: -2.2s; }
  .card--gold::after   { animation-delay: -3.6s; }
  .card--pink::after   { animation-delay: -1.1s; }
  @keyframes cardSheen { 0% { left: -45%; } 58%, 100% { left: 135%; } }

  /* probability bars grow in when their card reveals */
  .reveal.in .bar > i { animation: barGrow 1s cubic-bezier(.16,1,.3,1) both; }
  .hero__art .bar > i { animation: barGrow 1.1s cubic-bezier(.16,1,.3,1) both; }
  @keyframes barGrow { from { transform: scaleX(0); } to { transform: scaleX(1); } }

  /* hero tag breathes a soft glow */
  .hero__tag { animation: tagGlow 3.4s ease-in-out infinite; }
  @keyframes tagGlow { 0%, 100% { box-shadow: 0 0 0 0 rgba(0,229,209,0); } 50% { box-shadow: 0 0 20px -5px rgba(0,229,209,0.55); } }

  /* feature icons drift gently */
  .feat__icon { animation: iconFloat 5.5s ease-in-out infinite; }
  @keyframes iconFloat { 0%, 100% { transform: translateY(0); } 50% { transform: translateY(-4px); } }
}

/* ===========================================================================
   Responsive — desktop ▸ tablet ▸ phone
   =========================================================================== */

/* small desktop / large tablet */
@media (max-width: 1080px) {
  :root { --maxw: 960px; }
  .h-xl { font-size: clamp(32px, 5.6vw, 54px); }
}

/* tablet (portrait & landscape) */
@media (max-width: 980px) {
  :root { --nav-h: 64px; }
  .nav__links { display: none; }
  .hide-sm { display: none; }
  .nav__burger { display: inline-flex; }

  .section { padding-block: 76px; }
  .section--tight { padding-block: 52px; }
  .hero { padding-block: 48px 44px; }
  .page-hero { padding-block: 60px 40px; }

  .hero__grid { grid-template-columns: 1fr; gap: 20px; }
  .hero__art { min-height: 300px; order: -1; }
  .hero__mascot { height: 320px; }
  .hero__chip-card { display: none; }

  .split { grid-template-columns: 1fr; gap: 28px; }
  .split__art { min-height: 240px; }
  .split__art img.mascot { height: 280px; }

  .stats { grid-template-columns: repeat(2, 1fr); gap: 26px 18px; }
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
  .grid-3 { grid-template-columns: repeat(2, 1fr); }
  .footer__top { grid-template-columns: repeat(3, 1fr); }
  .footer__brand { grid-column: 1 / -1; }
  .toc { grid-template-columns: 1fr; }
  .cta-band { padding: 48px 32px; }
}

/* large phone / small tablet */
@media (max-width: 680px) {
  .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; }
  .footer__top { grid-template-columns: 1fr 1fr; }
  .section__head { margin-bottom: 32px; }
}

/* phone */
@media (max-width: 560px) {
  .wrap { padding: 0 16px; }
  .nav__inner { padding: 0 16px; gap: 10px; }
  .nav__actions { gap: 8px; }
  .nav__actions .lang { display: none; }   /* language moves into the drawer */
  .brand { gap: 9px; }
  .brand__name { font-size: 16px; }
  .brand__logo { width: 30px; height: 30px; }

  .section { padding-block: 56px; }
  .section--tight { padding-block: 40px; }
  .hero { padding-block: 32px 32px; }
  .hero__art { min-height: 240px; }
  .hero__mascot { height: 240px; }
  .hero__halo { width: 280px; height: 280px; }

  .card { padding: 20px; }
  .cta-band { padding: 32px 18px; border-radius: 20px; }
  .stats { grid-template-columns: 1fr 1fr; gap: 22px 14px; }

  .btn-row { gap: 10px; }
  .btn--lg { padding: 14px 22px; font-size: 14px; }
  .cta-band .btn-row, .hero .btn-row { flex-direction: column; align-items: stretch; }
  .cta-band .btn, .hero .btn-row .btn { width: 100%; }

  .footer__top { grid-template-columns: 1fr; gap: 26px; }
  .footer__bottom { flex-direction: column; align-items: flex-start; gap: 16px; }
  .footer__store { width: 100%; }
  .store-btn { flex: 1; justify-content: center; }

  .lang__menu { min-width: 0; width: calc(100vw - 32px); right: -8px; }
}

/* very small phone */
@media (max-width: 380px) {
  .nav__inner { padding: 0 12px; gap: 8px; }
  .nav__actions { gap: 6px; }
  .nav__actions .btn--primary { padding: 8px 12px; }
  .brand__name { font-size: 14px; }
  .brand__logo { width: 28px; height: 28px; }
  .h-xl { font-size: 30px; }
}

@media (prefers-reduced-motion: reduce) {
  *, .atmos__blob, .hero__mascot, .hero__halo, .split__art img.mascot { animation: none !important; }
  .reveal { transition: none; opacity: 1; transform: none; }
  .card[style] { transform: none !important; }
  html { scroll-behavior: auto; }
}