/* ===========================================================
   W3XPay — Alchemy-inspired design system
   Dark hero · electric blue · grotesk display · soft glow
   =========================================================== */
:root {
  --bg: #FFFFFF;
  --bg-soft: #F6F8FC;
  --panel: #F2F5FE;            /* light-blue feature panel */
  --ink: #0A0A12;             /* near-black headings */
  --ink-2: #4A4D5E;           /* body */
  --ink-3: #898EA1;           /* muted */
  --line: #E9EBF2;
  --line-2: #DEE2EC;

  --blue: #2B50F6;            /* electric brand blue */
  --blue-ink: #1B3AD6;        /* hover / deep */
  --blue-soft: #ECF0FF;       /* tint bg */
  --violet: #8B6CF0;
  --teal: #2BD9C8;

  --dark: #0A0A12;            /* dark sections */
  --dark-2: #07070D;
  --on-dark: #EDEEF4;
  --on-dark-2: #9AA0B4;
  --dark-line: rgba(255,255,255,.10);
  --dark-card: rgba(255,255,255,.045);

  --radius: 18px;
  --radius-sm: 12px;
  --font-display: "Space Grotesk", "Manrope", "Noto Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
  --font: "Manrope", "Noto Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
  --mono: "JetBrains Mono", monospace;
  --shadow-card: 0 1px 2px rgba(10,10,18,.04), 0 12px 32px -16px rgba(10,10,18,.12);
  --shadow-lift: 0 24px 60px -28px rgba(10,10,18,.28);
}
html[lang="zh-TW"] body { --font: "Manrope","Noto Sans TC","PingFang TC",sans-serif; --font-display: "Space Grotesk","Noto Sans TC",sans-serif; }

* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--font);
  background: var(--bg);
  color: var(--ink);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
img { display: block; max-width: 100%; }
a { text-decoration: none; color: inherit; }
.wrap { max-width: 1200px; margin: 0 auto; padding: 0 32px; }

h1, h2, h3, .display { font-family: var(--font-display); }

/* ---------- buttons ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  font: inherit; font-size: 15px; font-weight: 700;
  border-radius: 10px; padding: 11px 20px; cursor: pointer;
  border: 1px solid transparent; transition: all .16s ease; white-space: nowrap;
}
.btn-primary { background: var(--blue); color: #fff; box-shadow: 0 6px 18px -8px rgba(43,80,246,.6); }
.btn-primary:hover { background: var(--blue-ink); transform: translateY(-1px); }
.btn-ghost { border-color: var(--line-2); color: var(--ink); background: #fff; }
.btn-ghost:hover { border-color: #C4CAD8; }
.btn-lg { padding: 14px 26px; font-size: 16px; }
.btn-white { background: #fff; color: var(--ink); }
.btn-white:hover { background: #EEF1F8; transform: translateY(-1px); }
.btn-outline-d { border-color: rgba(255,255,255,.24); color: #fff; background: transparent; }
.btn-outline-d:hover { border-color: rgba(255,255,255,.5); background: rgba(255,255,255,.05); }
.arrow-link {
  display: inline-flex; align-items: center; gap: 7px;
  font-weight: 700; font-size: 15px; color: var(--blue);
}
.arrow-link svg { transition: transform .16s ease; }
.arrow-link:hover svg { transform: translateX(3px); }

/* ---------- eyebrow ---------- */
.eyebrow {
  display: inline-flex; align-items: center; gap: 8px;
  font-size: 13px; font-weight: 700; letter-spacing: .14em; text-transform: uppercase;
  color: var(--blue);
}
.eyebrow.on-dark { color: #9FB2FF; }

/* ---------- announcement bar ---------- */
.announce {
  background: var(--dark-2); color: var(--on-dark);
  font-size: 13.5px; font-weight: 500;
  display: flex; align-items: center; justify-content: center; gap: 12px;
  height: 40px; text-align: center; white-space: nowrap;
  border-bottom: 1px solid rgba(255,255,255,.08);
}
.announce .pill {
  font-size: 11px; font-weight: 800; letter-spacing: .04em;
  background: var(--blue); color: #fff; border-radius: 999px; padding: 3px 9px;
}
.announce a { display: inline-flex; align-items: center; gap: 5px; color: #fff; font-weight: 700; }
.announce a svg { transition: transform .16s; }
.announce a:hover svg { transform: translateX(3px); }

/* ---------- topbar ---------- */
.topbar {
  position: sticky; top: 0; z-index: 50;
  background: rgba(255,255,255,.82);
  backdrop-filter: saturate(160%) blur(14px);
  border-bottom: 1px solid var(--line);
}
.topbar-in { display: flex; align-items: center; gap: 36px; height: 70px; }
.brand { display: flex; align-items: center; gap: 10px; }
.brand img { height: 27px; }
.brand b { font-family: var(--font-display); font-size: 20px; font-weight: 700; letter-spacing: -0.01em; }
.brand b i { font-style: normal; color: var(--blue); }
.nav { display: flex; gap: 30px; font-size: 15px; font-weight: 600; color: var(--ink-2); }
.nav a { position: relative; }
.nav a:hover { color: var(--ink); }
.topbar-right { margin-left: auto; display: flex; align-items: center; gap: 12px; }
.lang { position: relative; }
.lang-btn {
  display: flex; align-items: center; gap: 6px;
  font: inherit; font-size: 14px; font-weight: 600; color: var(--ink-2);
  background: none; border: 1px solid var(--line-2); border-radius: 9px;
  padding: 8px 12px; cursor: pointer;
}
.lang-btn:hover { border-color: #C4CAD8; color: var(--ink); }
.lang-menu {
  position: absolute; top: calc(100% + 8px); right: 0;
  background: #fff; border: 1px solid var(--line); border-radius: 12px;
  box-shadow: var(--shadow-lift); padding: 6px; min-width: 140px; display: none; z-index: 60;
}
.lang-menu.open { display: block; }
.lang-menu button {
  display: flex; width: 100%; align-items: center; justify-content: space-between;
  font: inherit; font-size: 14px; font-weight: 500; color: var(--ink-2);
  background: none; border: none; border-radius: 8px; padding: 9px 11px; cursor: pointer;
}
.lang-menu button:hover { background: var(--bg-soft); color: var(--ink); }
.lang-menu button.on { color: var(--blue); font-weight: 700; }

/* ===========================================================
   HERO (dark)
   =========================================================== */
.hero {
  position: relative; background: var(--dark); color: #fff;
  overflow: hidden;
  padding: 116px 0 96px;
  text-align: center;
}
.hero-glow {
  position: absolute; left: 50%; bottom: -10%; transform: translateX(-50%);
  width: 1400px; height: 900px; pointer-events: none; z-index: 0;
  background:
    radial-gradient(42% 46% at 50% 72%, rgba(43,80,246,.42), transparent 70%),
    radial-gradient(34% 40% at 68% 86%, rgba(139,108,240,.34), transparent 72%),
    radial-gradient(30% 38% at 30% 90%, rgba(43,217,200,.22), transparent 72%);
  filter: blur(8px);
}
.hero-grid {
  position: absolute; inset: 0; z-index: 0; pointer-events: none;
  background-image:
    linear-gradient(to right, rgba(255,255,255,.05) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(255,255,255,.05) 1px, transparent 1px);
  background-size: 64px 64px;
  mask-image: radial-gradient(ellipse 80% 70% at 50% 30%, black 20%, transparent 72%);
  -webkit-mask-image: radial-gradient(ellipse 80% 70% at 50% 30%, black 20%, transparent 72%);
}
.hero-in { position: relative; z-index: 1; max-width: 920px; margin: 0 auto; }
.hero-badge {
  display: inline-flex; align-items: center; gap: 9px; white-space: nowrap;
  font-size: 13px; font-weight: 600; color: #C9D2F5;
  background: rgba(255,255,255,.06); border: 1px solid rgba(255,255,255,.14);
  border-radius: 999px; padding: 7px 8px 7px 15px;
}
.hero-badge .dot { width: 6px; height: 6px; border-radius: 50%; background: var(--teal); box-shadow: 0 0 0 4px rgba(43,217,200,.18); }
.hero-badge .tag { font-size: 11px; font-weight: 800; letter-spacing: .03em; background: rgba(43,80,246,.9); color: #fff; border-radius: 999px; padding: 3px 9px; }
h1 {
  font-size: 72px; line-height: 1.04; font-weight: 700;
  letter-spacing: -0.035em; margin-top: 28px; color: #fff;
  text-wrap: balance;
}
h1 .hl {
  background: linear-gradient(100deg, #6E8BFF 0%, #A88BFF 50%, #54E5D6 100%);
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
.hero-sub {
  margin: 26px auto 0; font-size: 19px; line-height: 1.6; color: var(--on-dark-2);
  max-width: 620px; text-wrap: pretty;
}
.hero-ctas { display: flex; gap: 14px; justify-content: center; margin-top: 40px; }
.hero-trust {
  display: flex; gap: 30px; justify-content: center; margin-top: 52px;
  font-size: 13.5px; color: #9097AD; font-weight: 600; flex-wrap: wrap;
}
.hero-trust span { display: flex; align-items: center; gap: 8px; }

/* logo marquee */
.marquee {
  position: relative; z-index: 1;
  margin-top: 76px; padding-top: 36px;
  border-top: 1px solid rgba(255,255,255,.08);
}
.marquee-label { font-size: 12.5px; font-weight: 600; letter-spacing: .12em; text-transform: uppercase; color: #6B7088; text-align: center; }
.marquee-track-wrap {
  margin-top: 26px; overflow: hidden;
  mask-image: linear-gradient(to right, transparent, black 8%, black 92%, transparent);
  -webkit-mask-image: linear-gradient(to right, transparent, black 8%, black 92%, transparent);
}
.marquee-track { display: flex; gap: 64px; width: max-content; animation: marquee 36s linear infinite; }
@keyframes marquee { to { transform: translateX(-50%); } }
.plogo {
  display: flex; align-items: center; gap: 9px; flex: none;
  font-size: 19px; font-weight: 800; letter-spacing: -0.01em;
  color: rgba(255,255,255,.52);
}
.plogo .pmark { width: 19px; height: 19px; border-radius: 6px; background: rgba(255,255,255,.42); }
.plogo .pmark.r { border-radius: 50%; }
.plogo .pmark.d { transform: rotate(45deg); border-radius: 4px; width: 16px; height: 16px; }
.plogo.serif { font-family: Georgia, serif; font-weight: 700; }
.plogo.mono { font-family: var(--mono); font-weight: 700; font-size: 16px; }

/* ===========================================================
   sections
   =========================================================== */
.section { padding: 110px 0; }
.section.tight { padding: 84px 0; }
.sec-head { max-width: 720px; }
.sec-head.center { margin: 0 auto; text-align: center; }
.sec-title {
  font-size: 46px; font-weight: 700; letter-spacing: -0.03em; line-height: 1.1;
  margin-top: 18px; text-wrap: balance;
}
.sec-sub { font-size: 18px; color: var(--ink-2); margin-top: 18px; text-wrap: pretty; line-height: 1.6; }

/* ---------- stat band ---------- */
.statband { background: var(--bg); }
.statband-inner {
  background:
    radial-gradient(120% 140% at 50% 0%, #EAF0FF 0%, #F6F8FE 46%, #FFFFFF 100%);
  border: 1px solid var(--line);
  border-radius: 28px;
  padding: 64px 56px;
  text-align: center;
  position: relative; overflow: hidden;
}
.statband-inner::before {
  content: ""; position: absolute; inset: 0;
  background-image:
    linear-gradient(to right, rgba(43,80,246,.05) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(43,80,246,.05) 1px, transparent 1px);
  background-size: 48px 48px;
  mask-image: radial-gradient(ellipse 70% 80% at 50% 0%, black, transparent 70%);
  -webkit-mask-image: radial-gradient(ellipse 70% 80% at 50% 0%, black, transparent 70%);
}
.statband-inner > * { position: relative; }
.stat-row {
  margin-top: 48px; display: grid; grid-template-columns: repeat(4, 1fr); gap: 32px;
}
.stat { }
.stat .num {
  font-family: var(--font-display);
  font-size: 50px; font-weight: 700; letter-spacing: -0.03em; line-height: 1;
  font-variant-numeric: tabular-nums;
}
.stat .num i { font-style: normal; color: var(--blue); }
.stat .lbl { font-size: 14.5px; color: var(--ink-3); margin-top: 12px; font-weight: 500; }

/* ---------- product cards ---------- */
.prod-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; margin-top: 60px; }
.prod-card {
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius);
  padding: 34px 30px; transition: box-shadow .2s ease, transform .2s ease, border-color .2s;
}
.prod-card:hover { box-shadow: var(--shadow-lift); transform: translateY(-3px); border-color: #D5DBF6; }
.prod-icon {
  width: 50px; height: 50px; border-radius: 14px;
  background: var(--blue-soft); color: var(--blue);
  display: flex; align-items: center; justify-content: center;
}
.prod-card h3 { font-size: 21px; font-weight: 700; letter-spacing: -0.01em; margin-top: 24px; }
.prod-card p { font-size: 15px; color: var(--ink-2); margin-top: 11px; }
.prod-feats { margin-top: 20px; display: grid; gap: 9px; }
.prod-feats span { display: flex; gap: 10px; align-items: center; font-size: 14px; color: var(--ink-2); font-weight: 500; }
.prod-feats svg { flex: none; color: var(--blue); }

/* ---------- feature row ---------- */
.feature { background: var(--bg); }
.feature.panel {
  background: radial-gradient(120% 120% at 50% 0%, #EFF3FE 0%, #F7F9FE 60%, #FFFFFF 100%);
  border-top: 1px solid var(--line); border-bottom: 1px solid var(--line);
}
.feature-in {
  display: grid; grid-template-columns: 0.92fr 1.08fr; gap: 72px; align-items: center;
}
.feature.reverse .feature-in, .feature-in.reverse { grid-template-columns: 1.08fr 0.92fr; }
.feature.reverse .feature-copy, .feature-in.reverse .feature-copy { order: 2; }
.feature-copy h2 { font-family: var(--font-display); font-size: 42px; font-weight: 700; letter-spacing: -0.03em; line-height: 1.12; margin-top: 16px; }
.feature-copy p.lead { font-size: 18px; color: var(--ink-2); margin-top: 18px; line-height: 1.6; }
.feat-points { margin-top: 28px; display: grid; gap: 18px; }
.feat-point { display: flex; gap: 14px; align-items: flex-start; }
.feat-point .pico {
  width: 38px; height: 38px; border-radius: 11px; flex: none;
  background: #fff; border: 1px solid var(--line); color: var(--blue);
  display: flex; align-items: center; justify-content: center;
}
.feat-point b { font-size: 15.5px; font-weight: 700; display: block; }
.feat-point span { font-size: 14px; color: var(--ink-3); }
.feature-copy .arrow-link { margin-top: 30px; }

/* ---------- browser frame (product screenshot) ---------- */
.shot {
  position: relative;
  padding: 22px;
  border-radius: 26px;
  background: linear-gradient(150deg, rgba(43,80,246,.12), rgba(139,108,240,.10) 60%, rgba(43,217,200,.08));
}
.shot::after {
  content: ""; position: absolute; inset: 0; border-radius: 26px;
  border: 1px solid rgba(43,80,246,.12);
}
.shot-card {
  position: relative; width: 100%;
  border-radius: 16px; background: #fff; overflow: hidden;
  box-shadow: 0 30px 70px -30px rgba(10,16,40,.45), 0 4px 14px rgba(10,16,40,.08);
  border: 1px solid var(--line);
}
.shot-card iframe { position: absolute; top: 0; left: 0; transform-origin: top left; border: 0; display: block; }

/* ---------- steps ---------- */
.steps-flow { display: grid; grid-template-columns: repeat(3, 1fr); gap: 30px; margin-top: 66px; }
.step-card { position: relative; }
.step-line {
  position: absolute; top: 24px; left: 58px; right: -30px; height: 2px;
  background: repeating-linear-gradient(to right, #C6D0F2 0 6px, transparent 6px 12px);
}
.step-card:last-child .step-line { display: none; }
.step-num {
  width: 48px; height: 48px; border-radius: 14px;
  background: var(--blue); color: #fff;
  font-family: var(--font-display); font-size: 19px; font-weight: 700;
  display: flex; align-items: center; justify-content: center;
  position: relative; z-index: 1; box-shadow: 0 8px 20px -8px rgba(43,80,246,.6);
}
.step-card h3 { font-size: 20px; font-weight: 700; letter-spacing: -0.01em; margin-top: 22px; }
.step-card p { font-size: 15px; color: var(--ink-2); margin-top: 9px; max-width: 300px; }

/* ---------- coins ---------- */
.coins-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; margin-top: 60px; }
.coin-card {
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius-sm);
  padding: 22px; display: flex; align-items: center; gap: 14px;
  transition: border-color .18s, transform .18s;
}
.coin-card:hover { border-color: #D5DBF6; transform: translateY(-2px); }
.coin {
  width: 40px; height: 40px; flex: none; display: block;
  filter: drop-shadow(0 4px 10px rgba(10,10,18,.14));
}
.coin svg { width: 100%; height: 100%; display: block; }
.coin-card b { font-size: 16px; display: block; }
.coin-card span { font-size: 12.5px; color: var(--ink-3); display: block; margin-top: 1px; }
.coin-more { border-style: dashed; color: var(--ink-3); justify-content: center; font-size: 14px; font-weight: 600; }
.nets-note { margin-top: 30px; display: flex; gap: 10px; flex-wrap: wrap; justify-content: center; }
.net-chip {
  display: inline-flex; align-items: center; gap: 7px;
  font-size: 13px; font-weight: 600; color: var(--ink-2);
  background: #fff; border: 1px solid var(--line); border-radius: 999px; padding: 7px 15px 7px 9px;
  transition: border-color .18s, transform .18s;
}
.net-chip:hover { border-color: #D5DBF6; transform: translateY(-1px); }
.net-chip svg { width: 18px; height: 18px; display: block; }

/* ---------- developers (dark) ---------- */
.dev { background: var(--dark); color: #fff; position: relative; overflow: hidden; }
.dev::before {
  content: ""; position: absolute; left: 50%; top: -20%; transform: translateX(-50%);
  width: 900px; height: 600px; pointer-events: none;
  background: radial-gradient(closest-side, rgba(43,80,246,.22), transparent);
}
.dev-grid { position: relative; display: grid; grid-template-columns: 1fr 1.12fr; gap: 72px; align-items: center; }
.dev h2.sec-title { color: #fff; }
.dev .sec-sub { color: var(--on-dark-2); }
.dev-feats { margin-top: 36px; display: grid; gap: 20px; }
.dev-feat { display: flex; gap: 14px; align-items: flex-start; }
.dev-feat .pico {
  width: 38px; height: 38px; border-radius: 11px; flex: none;
  background: rgba(255,255,255,.06); border: 1px solid var(--dark-line); color: #7E9BFF;
  display: flex; align-items: center; justify-content: center;
}
.dev-feat b { display: block; font-size: 15.5px; }
.dev-feat span { font-size: 14px; color: var(--on-dark-2); }
.dev-ctas { display: flex; gap: 14px; margin-top: 40px; }
.code-window {
  background: #0E0E18; border: 1px solid var(--dark-line); border-radius: 16px;
  overflow: hidden; box-shadow: 0 40px 90px -40px rgba(0,0,0,.7);
}
.code-tabs { display: flex; gap: 4px; padding: 11px 14px; border-bottom: 1px solid var(--dark-line); }
.code-tab { font-size: 12.5px; font-weight: 600; color: rgba(255,255,255,.42); padding: 6px 13px; border-radius: 8px; }
.code-tab.on { background: rgba(255,255,255,.08); color: #fff; }
.code-body {
  padding: 24px; font-family: var(--mono); font-size: 13px; line-height: 1.78;
  overflow-x: auto; color: #B8C2DC; white-space: pre;
}
.code-body .c-k { color: #7DA8FF; }
.code-body .c-s { color: #7EE0A8; }
.code-body .c-c { color: #5A6488; }
.code-body .c-n { color: #F2A98C; }

/* ---------- pricing ---------- */
.price-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; margin-top: 60px; }
.price-card { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 36px 32px; position: relative; }
.price-card.hot { border-color: var(--blue); box-shadow: 0 30px 64px -30px rgba(43,80,246,.36); }
.price-badge {
  position: absolute; top: -13px; left: 32px;
  font-size: 11.5px; font-weight: 800; letter-spacing: .04em;
  background: var(--blue); color: #fff; border-radius: 999px; padding: 5px 13px;
}
.price-name { font-size: 15px; font-weight: 800; color: var(--ink-2); }
.price-num { font-family: var(--font-display); font-size: 46px; font-weight: 700; letter-spacing: -0.03em; margin-top: 12px; }
.price-num small { font-size: 16px; font-weight: 600; color: var(--ink-3); margin-left: 4px; }
.price-desc { font-size: 13.5px; color: var(--ink-3); margin-top: 6px; }
.price-feats { margin-top: 24px; padding-top: 24px; border-top: 1px solid var(--line); display: grid; gap: 11px; }
.price-feats span { display: flex; gap: 10px; align-items: center; font-size: 14px; color: var(--ink-2); }
.price-feats svg { flex: none; color: var(--blue); }
.price-note { text-align: center; margin-top: 40px; font-size: 15px; color: var(--ink-3); }
.price-note a { color: var(--blue); font-weight: 700; }

/* ---------- security ---------- */
.sec-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; margin-top: 60px; }
.sec-card { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 30px 26px; }
.sec-card .prod-icon { width: 46px; height: 46px; border-radius: 13px; }
.sec-card h3 { font-size: 17.5px; font-weight: 700; margin-top: 20px; }
.sec-card p { font-size: 14px; color: var(--ink-2); margin-top: 9px; }

/* ---------- faq ---------- */
.faq-list { max-width: 800px; margin: 52px auto 0; }
.faq-item { border-bottom: 1px solid var(--line); }
.faq-q {
  width: 100%; display: flex; align-items: center; justify-content: space-between; gap: 20px;
  font: inherit; font-family: var(--font-display); font-size: 18px; font-weight: 700; color: var(--ink);
  text-align: left; background: none; border: none; padding: 24px 4px; cursor: pointer;
}
.faq-q svg { flex: none; color: var(--ink-3); transition: transform .2s ease; }
.faq-item.open .faq-q svg { transform: rotate(45deg); color: var(--blue); }
.faq-a { max-height: 0; overflow: hidden; transition: max-height .26s ease; font-size: 15.5px; color: var(--ink-2); }
.faq-a p { padding: 0 4px 24px; max-width: 700px; line-height: 1.65; }
.faq-item.open .faq-a { max-height: 240px; }

/* ---------- CTA band (dark) ---------- */
.cta-wrap { padding: 0 0 110px; margin-top:100px;}
.cta-band {
  position: relative; overflow: hidden;
  background: var(--dark);
  border-radius: 28px; padding: 84px 64px; color: #fff; text-align: center;
}
.cta-glow {
  position: absolute; inset: 0; pointer-events: none;
  background:
    radial-gradient(50% 80% at 50% 120%, rgba(43,80,246,.5), transparent 70%),
    radial-gradient(40% 70% at 78% 130%, rgba(139,108,240,.4), transparent 72%),
    radial-gradient(36% 60% at 22% 130%, rgba(43,217,200,.28), transparent 72%);
}
.cta-grid {
  position: absolute; inset: 0; pointer-events: none;
  background-image:
    linear-gradient(to right, rgba(255,255,255,.05) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(255,255,255,.05) 1px, transparent 1px);
  background-size: 56px 56px;
  mask-image: radial-gradient(ellipse 70% 100% at 50% 0%, black, transparent 75%);
  -webkit-mask-image: radial-gradient(ellipse 70% 100% at 50% 0%, black, transparent 75%);
}
.cta-band > * { position: relative; z-index: 1; }
.cta-band h2 { font-family: var(--font-display); font-size: 48px; font-weight: 700; letter-spacing: -0.03em; line-height: 1.1; }
.cta-band p { margin: 18px auto 0; font-size: 18px; color: var(--on-dark-2); max-width: 540px; }
.cta-band .hero-ctas { margin-top: 38px; }

/* ---------- footer ---------- */
footer { border-top: 1px solid var(--line); background: var(--bg); }
.foot-in { display: grid; grid-template-columns: 1.5fr repeat(3, 1fr); gap: 48px; padding: 72px 0 52px; }
.foot-brand p { font-size: 14px; color: var(--ink-3); margin-top: 18px; max-width: 290px; line-height: 1.6; }
.foot-col b { font-size: 13.5px; font-weight: 800; letter-spacing: .03em; color: var(--ink); }
.foot-col ul { list-style: none; margin-top: 18px; display: grid; gap: 12px; }
.foot-col a { font-size: 14.5px; color: var(--ink-2); }
.foot-col a:hover { color: var(--blue); }
.foot-base {
  border-top: 1px solid var(--line); padding: 24px 0;
  display: flex; justify-content: space-between; align-items: center; gap: 20px;
  font-size: 13px; color: var(--ink-3);
}

/* ---------- reveal ---------- */
@media (prefers-reduced-motion: no-preference) {
  .reveal { opacity: 0; transform: translateY(20px); transition: opacity .6s ease, transform .6s ease; }
  .reveal.in { opacity: 1; transform: none; }
}

/* ---------- responsive ---------- */
@media (max-width: 1080px) {
  h1 { font-size: 52px; }
  .sec-title, .cta-band h2 { font-size: 36px; }
  .feature-copy h2 { font-size: 34px; }
  .stat-row, .sec-grid, .coins-grid { grid-template-columns: repeat(2, 1fr); }
  .prod-grid, .steps-flow, .price-grid { grid-template-columns: 1fr; }
  .feature-in, .dev-grid { grid-template-columns: 1fr; gap: 40px; }
  .feature.reverse .feature-copy, .feature-in.reverse .feature-copy { order: 0; }
  .nav { display: none; }
}