/* ============================================================
   $BNBINU — minimal / futurist, a quiet eastern accent
   ============================================================ */
@font-face {
  font-family: 'Sora';
  src: url('/vendor/fonts/sora-var.woff2') format('woff2');
  font-weight: 100 800;
  font-display: swap;
}
@font-face {
  font-family: 'JBMono';
  src: url('/vendor/fonts/mono-var.woff2') format('woff2');
  font-weight: 100 800;
  font-display: swap;
}

:root {
  --bg: #05070f;
  --bg-2: #0a0f22;
  --panel: rgba(14, 20, 44, 0.72);
  --panel-solid: #0d1330;
  --line: rgba(255, 255, 255, 0.08);
  --line-2: rgba(255, 255, 255, 0.14);
  --gold: #f3ba2f;
  --gold-2: #ffd873;
  --gold-dim: rgba(243, 186, 47, 0.14);
  --violet: #8b7bff;
  --cyan: #5ad1ff;
  --seal: #d9432c;
  --ink: #eef1f8;
  --ink-2: #b7bfd3;
  --mute: #7a84a0;
  --ok: #3ddc97;
  --err: #ff6b6b;

  --sans: 'Sora', system-ui, -apple-system, 'Segoe UI', 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', 'Noto Sans SC', sans-serif;
  --mono: 'JBMono', ui-monospace, 'SF Mono', Menlo, Consolas, monospace;
  --r: 14px;
  --r-lg: 22px;
  --wrap: 1180px;
  --ease: cubic-bezier(.2, .7, .2, 1);
}

html[lang='zh-Hans'] {
  --sans: 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', 'Noto Sans SC', 'Sora', system-ui, sans-serif;
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; scroll-padding-top: 84px; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font: 400 16px/1.6 var(--sans);
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
img, svg { display: block; max-width: 100%; }
[hidden] { display: none !important; }
a { color: inherit; text-decoration: none; }
button { font: inherit; color: inherit; cursor: pointer; background: none; border: 0; }
h1, h2, h3 { margin: 0; font-weight: 600; letter-spacing: -0.02em; line-height: 1.08; }
p { margin: 0; }
code, .mono { font-family: var(--mono); font-feature-settings: 'zero' 0; }
::selection { background: var(--gold); color: #111; }

.sr-only {
  position: absolute; width: 1px; height: 1px; overflow: hidden;
  clip: rect(0 0 0 0); white-space: nowrap;
}
.sr-only:focus { position: fixed; top: 10px; left: 10px; width: auto; height: auto; clip: auto; z-index: 100;
  background: var(--gold); color: #111; padding: 8px 14px; border-radius: 8px; }
:focus-visible { outline: 2px solid var(--gold); outline-offset: 3px; border-radius: 6px; }

.wrap { width: 100%; max-width: var(--wrap); margin: 0 auto; padding: 0 16px; }
@media (min-width: 720px) { .wrap { padding: 0 28px; } }
.narrow { max-width: 860px; }

/* ── background ─────────────────────────────────────────── */
.bg { position: fixed; inset: 0; z-index: -1; pointer-events: none; overflow: hidden; }
.bg-glow { position: absolute; border-radius: 50%; filter: blur(90px); opacity: .5; }
.g1 { width: 60vw; height: 60vw; left: -18vw; top: -22vw; background: radial-gradient(circle, #1b2a7a 0%, transparent 70%); }
.g2 { width: 50vw; height: 50vw; right: -16vw; top: 30vh; background: radial-gradient(circle, #3a2a8a 0%, transparent 70%); opacity: .35; }
.bg-grid {
  position: absolute; inset: 0;
  background-image:
    linear-gradient(var(--line) 1px, transparent 1px),
    linear-gradient(90deg, var(--line) 1px, transparent 1px);
  background-size: 64px 64px;
  mask-image: radial-gradient(ellipse 80% 60% at 50% 0%, #000 20%, transparent 75%);
  -webkit-mask-image: radial-gradient(ellipse 80% 60% at 50% 0%, #000 20%, transparent 75%);
  opacity: .5;
}
.sprog { position: fixed; top: 0; left: 0; height: 2px; width: 0; z-index: 60;
  background: linear-gradient(90deg, var(--gold), var(--gold-2)); }

/* ── buttons ────────────────────────────────────────────── */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  height: 48px; padding: 0 22px; border-radius: 999px;
  font-weight: 600; font-size: 15px; letter-spacing: .01em; white-space: nowrap;
  transition: transform .2s var(--ease), box-shadow .25s var(--ease), background .2s, border-color .2s, opacity .2s;
}
.btn:active { transform: translateY(1px) scale(.99); }
.btn[disabled] { opacity: .55; cursor: progress; }
.btn-gold { background: var(--gold); color: #120e02; box-shadow: 0 0 0 1px rgba(255,216,115,.4) inset, 0 10px 30px -10px rgba(243,186,47,.55); }
.btn-gold:hover { background: var(--gold-2); box-shadow: 0 0 0 1px rgba(255,216,115,.6) inset, 0 14px 40px -10px rgba(243,186,47,.7); }
.btn-line { border: 1px solid var(--line-2); color: var(--ink); background: rgba(255,255,255,.02); }
.btn-line:hover { border-color: rgba(243,186,47,.5); color: var(--gold-2); }
.btn-sm { height: 38px; padding: 0 16px; font-size: 14px; }
.btn-lg { height: 54px; padding: 0 28px; font-size: 16px; }
.btn-block { width: 100%; }
.linkbtn { font-size: 12px; color: var(--mute); padding: 4px 6px; border-radius: 6px; }
.linkbtn:hover { color: var(--gold-2); }

/* ── header ─────────────────────────────────────────────── */
.top { position: sticky; top: 0; z-index: 50; transition: background .3s, border-color .3s, backdrop-filter .3s;
  border-bottom: 1px solid transparent; }
.top.stuck { background: rgba(5, 7, 15, .72); backdrop-filter: blur(16px) saturate(140%);
  -webkit-backdrop-filter: blur(16px) saturate(140%); border-color: var(--line); }
.top-in { display: flex; align-items: center; gap: 20px; height: 68px; }
.brand { display: flex; align-items: center; gap: 10px; flex-shrink: 0; }
.brand img { width: 36px; height: 36px; border-radius: 50%; box-shadow: 0 0 0 1px rgba(243,186,47,.45), 0 0 18px -4px rgba(243,186,47,.6); }
.brand-t { display: flex; flex-direction: column; font-weight: 700; letter-spacing: .06em; font-size: 15px; line-height: 1.1; }
.brand-t small { font: 500 10px/1.2 var(--mono); letter-spacing: .14em; color: var(--mute); text-transform: uppercase; margin-top: 3px; }
.nav { display: none; gap: 4px; margin: 0 auto; }
.nav a { padding: 8px 12px; font-size: 14px; color: var(--ink-2); border-radius: 999px; transition: color .2s, background .2s; }
.nav a:hover { color: var(--ink); background: rgba(255,255,255,.04); }
.top-r { display: flex; align-items: center; gap: 10px; margin-left: auto; }
.lang { display: inline-flex; padding: 3px; border: 1px solid var(--line-2); border-radius: 999px; background: rgba(255,255,255,.02); }
.lang-b { height: 30px; min-width: 40px; padding: 0 10px; border-radius: 999px; font-size: 12.5px; font-weight: 600; color: var(--mute); transition: color .2s, background .2s; }
.lang-b[aria-pressed='true'] { background: var(--gold); color: #120e02; }
.lang-b:not([aria-pressed='true']):hover { color: var(--ink); }
.x-link { display: grid; place-items: center; width: 38px; height: 38px; border-radius: 50%; border: 1px solid var(--line-2); color: var(--ink-2); transition: color .2s, border-color .2s; }
.x-link svg { width: 15px; height: 15px; }
.x-link:hover { color: var(--gold-2); border-color: rgba(243,186,47,.5); }
.hide-sm { display: none; }
.burger { width: 38px; height: 38px; border-radius: 50%; border: 1px solid var(--line-2); display: grid; place-content: center; gap: 5px; }
.burger span { width: 15px; height: 1.5px; background: var(--ink); transition: transform .25s var(--ease); }
.burger[aria-expanded='true'] span:first-child { transform: translateY(3.25px) rotate(45deg); }
.burger[aria-expanded='true'] span:last-child { transform: translateY(-3.25px) rotate(-45deg); }
.mnav { display: none; flex-direction: column; padding: 8px 16px 18px; border-top: 1px solid var(--line); background: rgba(5,7,15,.96); }
.mnav.open { display: flex; }
.mnav a { padding: 13px 4px; border-bottom: 1px solid var(--line); color: var(--ink-2); }
.mnav a:last-child { border-bottom: 0; color: var(--gold); }
@media (max-width: 380px) { .x-link { display: none; } }
@media (min-width: 640px) { .hide-sm { display: inline-flex; } }
@media (min-width: 1040px) { .nav { display: flex; } .burger, .mnav, .mnav.open { display: none; } }

/* ── hero ───────────────────────────────────────────────── */
.hero { position: relative; padding: 36px 0 72px; }
.hero-banner {
  position: absolute; inset: -68px 0 auto 0; height: 620px; z-index: -1;
  background: url('/assets/banner.jpg') center 35% / cover no-repeat;
  opacity: .22;
  mask-image: linear-gradient(180deg, #000 0%, rgba(0,0,0,.5) 55%, transparent 100%);
  -webkit-mask-image: linear-gradient(180deg, #000 0%, rgba(0,0,0,.5) 55%, transparent 100%);
}
.hero-grid { display: grid; grid-template-columns: minmax(0, 1fr); gap: 40px; align-items: start; }
.hero-copy, .card { min-width: 0; }
@media (min-width: 980px) {
  .hero { padding: 64px 0 96px; }
  .hero-grid { grid-template-columns: minmax(0, 1fr) 440px; gap: 56px; }
}
.eyebrow { display: flex; flex-wrap: wrap; align-items: center; gap: 12px; font: 500 12px/1 var(--mono); letter-spacing: .08em; text-transform: uppercase; color: var(--ink-2); }
.eb-sep { width: 18px; height: 1px; background: var(--line-2); }
.live { display: inline-flex; align-items: center; gap: 8px; color: var(--gold-2); padding: 7px 12px 7px 10px; border: 1px solid rgba(243,186,47,.3); border-radius: 999px; background: var(--gold-dim); }
.live i, .pill i { width: 7px; height: 7px; border-radius: 50%; background: var(--ok); box-shadow: 0 0 0 0 rgba(61,220,151,.6); animation: ping 2s infinite; }
@keyframes ping { 0% { box-shadow: 0 0 0 0 rgba(61,220,151,.55); } 80%,100% { box-shadow: 0 0 0 9px rgba(61,220,151,0); } }

.hero h1 { margin-top: 26px; font-size: clamp(40px, 7.4vw, 78px); font-weight: 600; letter-spacing: -0.035em; }
html[lang='zh-Hans'] .hero h1 { letter-spacing: 0; line-height: 1.18; }
.grad { background: linear-gradient(95deg, var(--gold-2) 0%, var(--gold) 45%, #f7a928 70%, var(--violet) 130%);
  -webkit-background-clip: text; background-clip: text; color: transparent; }
.lede { margin-top: 22px; max-width: 540px; font-size: 17px; color: var(--ink-2); }
.lede strong { color: var(--ink); font-weight: 600; }
.hero-cta { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 30px; }
.trust { list-style: none; padding: 0; margin: 30px 0 0; display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 12px 20px; max-width: 520px; }
.trust li { display: flex; align-items: center; gap: 10px; font-size: 13.5px; color: var(--ink-2); }
.trust svg { width: 16px; height: 16px; flex-shrink: 0; fill: none; stroke: var(--gold); stroke-width: 2; stroke-linecap: round; stroke-linejoin: round; }

.mascot { position: relative; margin: 36px auto 0; width: min(220px, 60vw); aspect-ratio: 1; }
.mascot img { position: absolute; inset: 10%; width: 80%; height: 80%; border-radius: 50%; object-fit: cover;
  box-shadow: 0 0 0 1px rgba(243,186,47,.35), 0 30px 80px -20px rgba(243,186,47,.35), 0 0 120px -30px rgba(139,123,255,.6); }
.ring { position: absolute; inset: 0; width: 100%; height: 100%; animation: spin 40s linear infinite; }
.ring circle { fill: none; }
.ring-a { stroke: rgba(243,186,47,.55); stroke-width: .6; stroke-dasharray: 1 5; }
.ring-b { stroke: rgba(243,186,47,.25); stroke-width: .5; stroke-dasharray: 120 420; stroke-linecap: round; }
@keyframes spin { to { transform: rotate(360deg); } }
.seal {
  position: absolute; right: 4%; bottom: 8%; width: 44px; height: 44px; display: grid; place-items: center;
  background: var(--seal); color: #fff3ea; border-radius: 6px; transform: rotate(-6deg);
  font: 700 24px/1 'Songti SC', 'STSong', 'SimSun', 'Noto Serif SC', serif;
  box-shadow: 0 6px 20px -6px rgba(217,67,44,.7), inset 0 0 0 2px rgba(255,243,234,.25);
}
@media (min-width: 980px) { .mascot { position: absolute; right: -40px; top: 240px; margin: 0; width: 220px; opacity: .95; } .hero-copy { position: relative; } }
@media (min-width: 980px) and (max-width: 1120px) { .mascot { display: none; } }
@media (min-width: 980px) { .hero-copy { padding-bottom: 20px; } }

/* ── presale card ───────────────────────────────────────── */
.card {
  position: relative; padding: 24px 20px; border-radius: var(--r-lg);
  background: linear-gradient(180deg, rgba(20,28,60,.78), rgba(10,14,32,.86));
  border: 1px solid var(--line-2);
  box-shadow: 0 40px 100px -40px rgba(0,0,0,.8), 0 0 0 1px rgba(243,186,47,.06) inset;
  backdrop-filter: blur(18px); -webkit-backdrop-filter: blur(18px);
}
@media (min-width: 480px) { .card { padding: 28px 26px; } }
.corner { position: absolute; width: 14px; height: 14px; border-color: var(--gold); border-style: solid; border-width: 0; opacity: .8; }
.c-tl { top: -1px; left: -1px; border-top-width: 1.5px; border-left-width: 1.5px; border-top-left-radius: var(--r-lg); }
.c-tr { top: -1px; right: -1px; border-top-width: 1.5px; border-right-width: 1.5px; border-top-right-radius: var(--r-lg); }
.c-bl { bottom: -1px; left: -1px; border-bottom-width: 1.5px; border-left-width: 1.5px; border-bottom-left-radius: var(--r-lg); }
.c-br { bottom: -1px; right: -1px; border-bottom-width: 1.5px; border-right-width: 1.5px; border-bottom-right-radius: var(--r-lg); }

.card-head { display: flex; justify-content: space-between; align-items: flex-start; gap: 12px; }
.card-head h2 { font-size: 22px; }
.card-sub { margin-top: 6px; font-size: 12.5px; color: var(--mute); }
.pill { display: inline-flex; align-items: center; gap: 7px; padding: 6px 11px; border-radius: 999px; font: 600 11px/1 var(--mono); letter-spacing: .1em; text-transform: uppercase; color: var(--ok); background: rgba(61,220,151,.08); border: 1px solid rgba(61,220,151,.25); flex-shrink: 0; }

.prog-top { display: flex; justify-content: space-between; margin-top: 24px; font-size: 13px; color: var(--ink-2); }
.prog-top b { color: var(--gold-2); font-weight: 600; }
.prog { position: relative; height: 8px; margin-top: 10px; border-radius: 99px; background: rgba(255,255,255,.06); overflow: hidden; }
.prog i { position: absolute; inset: 0 auto 0 0; width: 0; border-radius: inherit;
  background: linear-gradient(90deg, #c98a0b, var(--gold) 60%, var(--gold-2));
  box-shadow: 0 0 16px rgba(243,186,47,.6); transition: width 1.4s var(--ease); }
.prog i::after { content: ''; position: absolute; inset: 0; background: linear-gradient(90deg, transparent, rgba(255,255,255,.45), transparent); background-size: 50% 100%; background-repeat: no-repeat; animation: sheen 2.6s ease-in-out infinite; }
@keyframes sheen { from { background-position: -60% 0; } to { background-position: 160% 0; } }
.prog-sub { display: flex; justify-content: space-between; gap: 10px; margin-top: 8px; font-size: 11.5px; color: var(--mute); }

.cd { display: grid; grid-template-columns: repeat(4, 1fr); gap: 8px; margin-top: 20px; }
.cd-u { text-align: center; padding: 11px 0 9px; border-radius: 12px; background: rgba(255,255,255,.03); border: 1px solid var(--line); }
.cd-u b { display: block; font-size: 24px; font-weight: 600; line-height: 1.1; color: var(--ink); }
.cd-u span { display: block; margin-top: 4px; font-size: 10.5px; letter-spacing: .08em; text-transform: uppercase; color: var(--mute); }

.rate { display: flex; align-items: center; justify-content: center; gap: 10px; margin-top: 16px; padding: 10px; border-radius: 12px; border: 1px dashed rgba(243,186,47,.28); font-size: 13px; color: var(--gold-2); text-align: center; flex-wrap: wrap; }
.rate i { font-style: normal; color: var(--mute); }

.wbar { display: none; margin-top: 18px; padding: 10px 12px; border-radius: 12px; background: rgba(61,220,151,.06); border: 1px solid rgba(61,220,151,.2); align-items: center; justify-content: space-between; gap: 10px; }
.wbar.show { display: flex; }
.wbar-who { display: flex; align-items: center; gap: 8px; min-width: 0; flex-wrap: wrap; font-size: 13px; }
.wbar-meta { font-size: 11.5px; color: var(--mute); }
.wbar .dot { width: 7px; height: 7px; border-radius: 50%; background: var(--ok); flex-shrink: 0; }
.wbar-act { display: flex; flex-shrink: 0; }

.field-top { display: flex; justify-content: space-between; margin-top: 20px; font-size: 13px; color: var(--ink-2); }
.field-top span { color: var(--mute); font-size: 12px; }
.amount { display: flex; align-items: center; margin-top: 8px; border-radius: 14px; background: rgba(0,0,0,.28); border: 1px solid var(--line-2); transition: border-color .2s, box-shadow .2s; }
.amount:focus-within { border-color: rgba(243,186,47,.6); box-shadow: 0 0 0 4px rgba(243,186,47,.1); }
.amount.bad { border-color: rgba(255,107,107,.6); }
.amount input { flex: 1; min-width: 0; height: 56px; padding: 0 16px; background: none; border: 0; outline: none; color: var(--ink); font: 600 22px var(--mono); }
.amount input::placeholder { color: rgba(255,255,255,.2); }
.asset { display: flex; align-items: center; gap: 7px; padding: 0 16px; font-weight: 600; font-size: 14px; color: var(--gold-2); }
.asset svg { width: 18px; height: 18px; fill: var(--gold); }
.chips { display: grid; grid-template-columns: repeat(4, 1fr); gap: 8px; margin-top: 10px; }
.chip { height: 34px; border-radius: 10px; font: 500 12.5px var(--mono); color: var(--ink-2); border: 1px solid var(--line-2); background: rgba(255,255,255,.02); transition: all .2s; }
.chip:hover { color: var(--gold-2); border-color: rgba(243,186,47,.45); background: var(--gold-dim); }

.receive { display: flex; justify-content: space-between; align-items: baseline; gap: 12px; margin-top: 16px; padding: 14px 16px; border-radius: 14px; background: var(--gold-dim); border: 1px solid rgba(243,186,47,.22); font-size: 13px; color: var(--ink-2); }
.receive b { font-size: 17px; color: var(--gold-2); text-align: right; word-break: break-all; }
.hint { min-height: 18px; margin: 8px 2px 10px; font-size: 12px; color: var(--mute); }
.hint.bad { color: var(--err); }

.picker { display: none; margin-bottom: 12px; padding: 8px; border-radius: 14px; border: 1px solid var(--line-2); background: var(--panel-solid); }
.picker.show { display: grid; gap: 4px; }
.picker-h { padding: 6px 8px; font-size: 11px; letter-spacing: .1em; text-transform: uppercase; color: var(--mute); }
.wopt { display: flex; align-items: center; gap: 12px; padding: 10px; border-radius: 10px; text-align: left; transition: background .15s; }
.wopt:hover { background: rgba(255,255,255,.05); }
.wopt img { width: 24px; height: 24px; border-radius: 6px; }
.wopt .rdns { margin-left: auto; font: 11px var(--mono); color: var(--mute); overflow: hidden; text-overflow: ellipsis; white-space: nowrap; max-width: 45%; }

.noext { display: none; margin-top: 12px; padding: 14px; border-radius: 14px; border: 1px solid var(--line-2); font-size: 13px; color: var(--ink-2); }
.noext.show { display: block; }
.noext-btns { display: flex; gap: 8px; margin-top: 10px; }
.noext-btns .btn { flex: 1; }

.txok { display: none; margin-top: 12px; padding: 12px 14px; border-radius: 12px; font-size: 13px; background: rgba(61,220,151,.08); border: 1px solid rgba(61,220,151,.25); color: var(--ink); }
.txok.show { display: block; }
.txok a { color: var(--ok); text-decoration: underline; text-underline-offset: 3px; word-break: break-all; }

.or { display: flex; align-items: center; gap: 12px; margin: 22px 0 14px; font-size: 11.5px; letter-spacing: .1em; text-transform: uppercase; color: var(--mute); }
.or::before, .or::after { content: ''; flex: 1; height: 1px; background: var(--line); }

.sendbox { padding: 14px; border-radius: 14px; background: rgba(0,0,0,.22); border: 1px solid var(--line); }
.sb-label { display: flex; justify-content: space-between; gap: 8px; font-size: 12.5px; color: var(--ink-2); }
.net { font: 600 10.5px/1 var(--mono); letter-spacing: .08em; color: var(--gold-2); padding: 4px 7px; border-radius: 6px; background: var(--gold-dim); align-self: center; }
.addr { display: flex; align-items: center; gap: 8px; margin-top: 10px; }
.addr code { flex: 1; min-width: 0; font-size: 12.5px; line-height: 1.5; word-break: break-all; color: var(--ink-2); }
.addr code b { color: var(--gold-2); font-weight: 700; }
.copy { flex-shrink: 0; height: 32px; padding: 0 12px; border-radius: 8px; font-size: 12px; font-weight: 600; color: var(--ink); border: 1px solid var(--line-2); transition: all .2s; }
.copy:hover { border-color: rgba(243,186,47,.5); color: var(--gold-2); }
.copy.ok { color: var(--ok); border-color: rgba(61,220,151,.5); }
.warn { margin-top: 10px; font-size: 11.5px; line-height: 1.55; color: var(--mute); padding-left: 10px; border-left: 2px solid var(--seal); }
.scan { display: inline-block; margin-top: 10px; font-size: 12px; color: var(--gold); }
.scan:hover { color: var(--gold-2); }
.card-foot { margin-top: 16px; font-size: 11px; line-height: 1.55; color: var(--mute); text-align: center; }

/* ── stats ──────────────────────────────────────────────── */
.stats { border-block: 1px solid var(--line); background: rgba(255,255,255,.012); }
.stats-grid { display: grid; grid-template-columns: repeat(2, 1fr); }
.stat { padding: 26px 8px; display: flex; flex-direction: column; gap: 6px; border-right: 1px solid var(--line); }
.stat:nth-child(2n) { border-right: 0; padding-left: 20px; }
.stat:nth-child(-n+2) { border-bottom: 1px solid var(--line); }
.stat .k { font-size: 11.5px; letter-spacing: .1em; text-transform: uppercase; color: var(--mute); }
.stat .v { font-size: clamp(18px, 4.6vw, 30px); font-weight: 600; color: var(--ink); letter-spacing: -0.02em; overflow-wrap: anywhere; }
.stat .s { font-size: 12.5px; color: var(--gold); }
@media (min-width: 860px) {
  .stats-grid { grid-template-columns: repeat(4, 1fr); }
  .stat { padding: 34px 28px; border-bottom: 0 !important; }
  .stat:nth-child(2n) { border-right: 1px solid var(--line); padding-left: 28px; }
  .stat:first-child { padding-left: 0; }
  .stat:last-child { border-right: 0; }
}

/* ── sections ───────────────────────────────────────────── */
.sec { padding: 88px 0; }
@media (min-width: 860px) { .sec { padding: 120px 0; } }
.sec-head { max-width: 680px; margin-bottom: 44px; }
.sec-head.center { margin-inline: auto; text-align: center; }
.kicker { display: inline-flex; align-items: center; gap: 10px; font: 500 12px/1 var(--mono); letter-spacing: .12em; text-transform: uppercase; color: var(--ink-2); }
.kicker b { color: var(--gold); font-weight: 600; }
.kicker i { font-style: normal; font-family: 'Songti SC', 'STSong', 'Noto Serif SC', serif; font-size: 14px; color: var(--seal); opacity: .9; padding-right: 10px; border-right: 1px solid var(--line-2); }
.sec h2 { margin-top: 16px; font-size: clamp(30px, 4.8vw, 50px); }
html[lang='zh-Hans'] .sec h2 { letter-spacing: 0; line-height: 1.25; }
.sec-lede { margin-top: 16px; font-size: 16.5px; color: var(--ink-2); }

.steps { display: grid; gap: 16px; }
@media (min-width: 860px) { .steps { grid-template-columns: repeat(3, 1fr); } }
.step { position: relative; padding: 28px 24px; border-radius: var(--r); border: 1px solid var(--line); background: linear-gradient(180deg, rgba(255,255,255,.025), transparent); transition: border-color .3s, transform .3s var(--ease); }
.step:hover { border-color: rgba(243,186,47,.3); transform: translateY(-3px); }
.step-n { font-size: 12px; color: var(--gold); letter-spacing: .1em; }
.step h3 { margin-top: 26px; font-size: 20px; }
.step p { margin-top: 10px; font-size: 14.5px; color: var(--ink-2); }
.step::after { content: ''; position: absolute; top: 0; left: 24px; width: 32px; height: 1.5px; background: var(--gold); }

/* tokenomics */
.tok { display: grid; gap: 40px; align-items: center; }
@media (min-width: 900px) { .tok { grid-template-columns: 400px 1fr; gap: 72px; } }
.donut-wrap { position: relative; width: min(360px, 100%); aspect-ratio: 1; margin: 0 auto; }
.donut { width: 100%; height: 100%; transform: rotate(-90deg); }
.donut circle { fill: none; stroke-width: 16; }
.donut-track { stroke: rgba(255,255,255,.05); }
.seg { stroke-dasharray: 0 503; transition: stroke-dasharray 1.2s var(--ease); }
.s1 { stroke: var(--gold); } .s2 { stroke: var(--violet); } .s3 { stroke: var(--cyan); } .s4 { stroke: var(--seal); }
.donut-c { position: absolute; inset: 0; display: grid; place-content: center; text-align: center; }
.donut-c b { font-size: 48px; font-weight: 600; letter-spacing: -0.03em; }
.donut-c span { font-size: 12px; letter-spacing: .1em; text-transform: uppercase; color: var(--mute); }
.tok-rows { list-style: none; margin: 0; padding: 0; }
.tok-rows li { display: grid; grid-template-columns: 12px 1fr auto; grid-template-areas: 'sw n p' '. a a'; align-items: center; column-gap: 14px; row-gap: 2px; padding: 18px 0; border-bottom: 1px solid var(--line); }
.tok-rows li:first-child { border-top: 1px solid var(--line); }
.sw { grid-area: sw; width: 12px; height: 12px; border-radius: 3px; }
.sw.s1 { background: var(--gold); } .sw.s2 { background: var(--violet); } .sw.s3 { background: var(--cyan); } .sw.s4 { background: var(--seal); }
.tok-n { grid-area: n; font-size: 16px; font-weight: 500; }
.tok-a { grid-area: a; font-size: 12.5px; color: var(--mute); }
.tok-rows b { grid-area: p; font-size: 22px; font-weight: 600; }
@media (min-width: 600px) {
  .tok-rows li { grid-template-columns: 12px 1fr auto 72px; grid-template-areas: 'sw n a p'; }
  .tok-rows b { text-align: right; }
}
.feats { list-style: none; margin: 28px 0 0; padding: 0; display: grid; gap: 10px; }
@media (min-width: 600px) { .feats { grid-template-columns: 1fr 1fr; } }
.feats li { position: relative; padding: 12px 14px 12px 34px; font-size: 13.5px; color: var(--ink-2); border-radius: 12px; border: 1px solid var(--line); }
.feats li::before { content: ''; position: absolute; left: 14px; top: 50%; width: 8px; height: 8px; margin-top: -4px; border: 1.5px solid var(--gold); transform: rotate(45deg); }

/* airdrop */
.air { position: relative; display: grid; gap: 36px; padding: 40px 22px; border-radius: 28px; overflow: hidden;
  border: 1px solid rgba(243,186,47,.22);
  background:
    radial-gradient(ellipse 60% 80% at 100% 0%, rgba(139,123,255,.18), transparent 60%),
    radial-gradient(ellipse 60% 80% at 0% 100%, rgba(243,186,47,.12), transparent 60%),
    linear-gradient(180deg, rgba(20,28,60,.6), rgba(10,14,32,.6)); }
@media (min-width: 900px) { .air { grid-template-columns: 1.3fr 1fr; align-items: center; padding: 64px 56px; gap: 56px; } }
.air h2 { font-size: clamp(34px, 6vw, 64px); }
.air-t { color: var(--ink); }
.air-btns { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 28px; }
.air-steps { list-style: none; margin: 0; padding: 0; display: grid; gap: 10px; }
.air-steps li { display: flex; align-items: center; gap: 14px; padding: 16px 18px; border-radius: 14px; background: rgba(0,0,0,.25); border: 1px solid var(--line); font-size: 14.5px; }
.air-steps b { display: grid; place-items: center; width: 30px; height: 30px; border-radius: 50%; border: 1px solid rgba(243,186,47,.5); color: var(--gold); font-size: 13px; flex-shrink: 0; }

/* roadmap */
.road { display: grid; gap: 16px; }
@media (min-width: 700px) { .road { grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 1040px) { .road { grid-template-columns: repeat(4, 1fr); } }
.ph { position: relative; padding: 26px 22px; border-radius: var(--r); border: 1px solid var(--line); background: rgba(255,255,255,.015); }
.ph-top { display: flex; justify-content: space-between; align-items: center; font-size: 11.5px; color: var(--mute); letter-spacing: .06em; }
.ph-st { padding: 4px 9px; border-radius: 999px; font-size: 10.5px; font-weight: 600; letter-spacing: .1em; text-transform: uppercase; border: 1px solid var(--line-2); }
.ph.done .ph-st { color: var(--ok); border-color: rgba(61,220,151,.35); }
.ph.now { border-color: rgba(243,186,47,.45); background: linear-gradient(180deg, var(--gold-dim), transparent 70%); box-shadow: 0 20px 60px -30px rgba(243,186,47,.4); }
.ph.now .ph-st { color: #120e02; background: var(--gold); border-color: var(--gold); }
.ph h3 { margin-top: 22px; font-size: 20px; }
.ph ul { list-style: none; margin: 16px 0 0; padding: 0; display: grid; gap: 9px; }
.ph li { position: relative; padding-left: 16px; font-size: 14px; color: var(--ink-2); }
.ph li::before { content: ''; position: absolute; left: 0; top: .62em; width: 5px; height: 5px; background: var(--gold); transform: rotate(45deg); opacity: .8; }

/* faq */
.faq { display: grid; gap: 10px; }
.faq details { border-radius: var(--r); border: 1px solid var(--line); background: rgba(255,255,255,.015); transition: border-color .2s, background .2s; }
.faq details[open] { border-color: rgba(243,186,47,.3); background: rgba(243,186,47,.03); }
.faq summary { list-style: none; cursor: pointer; display: flex; justify-content: space-between; align-items: center; gap: 16px; padding: 18px 20px; font-weight: 500; font-size: 16px; }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: ''; flex-shrink: 0; width: 10px; height: 10px; border-right: 1.5px solid var(--gold); border-bottom: 1.5px solid var(--gold); transform: rotate(45deg) translate(-3px, -3px); transition: transform .25s var(--ease); }
.faq details[open] summary::after { transform: rotate(-135deg) translate(-3px, -3px); }
.faq p { padding: 0 20px 20px; font-size: 14.5px; color: var(--ink-2); }

/* footer */
.foot { position: relative; padding: 72px 0 40px; border-top: 1px solid var(--line); overflow: hidden; }
.wave {
  position: absolute; inset: 0; z-index: -1; opacity: .07;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='80' height='40' viewBox='0 0 80 40'%3E%3Cg fill='none' stroke='%23f3ba2f' stroke-width='1'%3E%3Cpath d='M0 40a40 40 0 0 1 80 0M10 40a30 30 0 0 1 60 0M20 40a20 20 0 0 1 40 0M30 40a10 10 0 0 1 20 0'/%3E%3Cpath d='M-40 20a40 40 0 0 1 80 0M-30 20a30 30 0 0 1 60 0M-20 20a20 20 0 0 1 40 0M-10 20a10 10 0 0 1 20 0M40 20a40 40 0 0 1 80 0M50 20a30 30 0 0 1 60 0M60 20a20 20 0 0 1 40 0M70 20a10 10 0 0 1 20 0'/%3E%3C/g%3E%3C/svg%3E");
  background-size: 80px 40px;
  mask-image: linear-gradient(0deg, #000, transparent 90%); -webkit-mask-image: linear-gradient(0deg, #000, transparent 90%);
}
.foot-top { display: flex; flex-wrap: wrap; justify-content: space-between; align-items: center; gap: 24px; }
.foot-nav { display: flex; flex-wrap: wrap; gap: 6px 20px; font-size: 14px; color: var(--ink-2); }
.foot-nav a:hover { color: var(--gold-2); }
.legal { margin-top: 36px; font-size: 12px; line-height: 1.7; color: var(--mute); max-width: 920px; }
.foot-end { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 10px; margin-top: 30px; padding-top: 20px; border-top: 1px solid var(--line); font-size: 11.5px; color: var(--mute); }
.foot-end span { overflow-wrap: anywhere; }

/* toast */
.toast { position: fixed; left: 50%; bottom: 22px; z-index: 90; max-width: min(92vw, 460px); padding: 12px 18px; border-radius: 12px;
  background: #121935; border: 1px solid var(--line-2); color: var(--ink); font-size: 14px; box-shadow: 0 20px 50px -10px rgba(0,0,0,.7);
  transform: translate(-50%, 20px); opacity: 0; pointer-events: none; transition: all .3s var(--ease); }
.toast.show { transform: translate(-50%, 0); opacity: 1; }
.toast.err { border-color: rgba(255,107,107,.5); }

/* reveal — only when JS runs */
.js .rv { opacity: 0; transform: translateY(18px); transition: opacity .8s var(--ease), transform .8s var(--ease); }
.js .rv.in { opacity: 1; transform: none; }
.js .d1 { transition-delay: .08s; } .js .d2 { transition-delay: .16s; } .js .d3 { transition-delay: .24s; } .js .d4 { transition-delay: .32s; }

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation: none !important; transition: none !important; }
  .js .rv { opacity: 1; transform: none; }
}