:root {
  --bg: #ffffff;
  --bg-soft: #fff7f2;
  --ink: #c2410c;
  --heading: #e8590c;
  --deep: #9a3412;
  --muted: #d97706;
  --line: #f3e0d4;
  --accent: #f97316;
  --accent-deep: #ea580c;
  --buy: #0f9f6e;
  --sell: #e11d48;
  --header-h: 72px;
  --max: 1080px;
  --font: BinancePlex, BinanceNova, Arial, "PingFang SC", "Hiragino Sans GB",
    "Microsoft YaHei", "Noto Sans SC", "WenQuanYi Micro Hei", sans-serif;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--font);
  font-size: 16px;
  line-height: 1.75;
  text-rendering: optimizeLegibility;
}

img {
  max-width: 100%;
  display: block;
}

a {
  color: inherit;
  text-decoration: none;
}

button,
input {
  font-family: inherit;
}

::selection {
  background: #ffedd5;
  color: var(--deep);
}

:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
}

.skip {
  position: absolute;
  left: 16px;
  top: -48px;
  z-index: 50;
  background: var(--accent);
  color: #fff;
  padding: 8px 12px;
  border-radius: 4px;
}

.skip:focus {
  top: 12px;
}

.wrap {
  width: min(var(--max), calc(100% - 48px));
  margin: 0 auto;
}

.header {
  position: sticky;
  top: 0;
  z-index: 30;
  height: var(--header-h);
  background: rgba(255, 255, 255, 0.94);
  border-bottom: 1px solid var(--line);
  border-top: 3px solid var(--accent);
  backdrop-filter: blur(16px);
}

.header-inner {
  height: 100%;
  display: flex;
  align-items: center;
  gap: 32px;
}

.logo {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  flex: 0 0 auto;
}

.logo img {
  width: 28px;
  height: 28px;
}

.logo strong {
  color: var(--heading);
  font-size: 15px;
  letter-spacing: 0.16em;
  font-weight: 600;
}

.nav {
  flex: 1;
  min-width: 0;
}

.nav-list {
  display: flex;
  align-items: center;
  gap: 26px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.nav-list a {
  color: var(--ink);
  font-size: 14px;
  white-space: nowrap;
}

.nav-list a:hover,
.nav-list a.is-active {
  color: var(--deep);
}

.nav-list a.is-active {
  box-shadow: inset 0 -1px 0 var(--accent);
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 10px;
  flex: 0 0 auto;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  height: 40px;
  padding: 0 18px;
  border-radius: 4px;
  border: 1px solid transparent;
  font-size: 14px;
  font-weight: 600;
  line-height: 1;
  white-space: nowrap;
  cursor: pointer;
  transition: background 0.16s ease, border-color 0.16s ease, color 0.16s ease;
}

.btn-register {
  background: var(--accent);
  color: #fff;
}

.btn-register:hover {
  background: var(--accent-deep);
}

.btn-android {
  color: var(--heading);
  border-color: var(--accent);
  background: #fff;
}

.btn-android:hover {
  background: var(--bg-soft);
}

.btn-lg {
  height: 48px;
  padding: 0 24px;
  font-size: 15px;
}

.hero {
  padding: 88px 0 24px;
}

.hero-grid,
.page-grid {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 64px;
  align-items: center;
}

.kicker {
  margin: 0 0 14px;
  color: var(--accent);
  font-size: 12px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
}

h1,
h2,
h3,
p {
  margin: 0;
}

h1,
h2,
h3 {
  color: var(--heading);
  font-weight: 500;
}

h1 {
  font-size: 60px;
  line-height: 1.12;
  letter-spacing: -0.04em;
}

.lead {
  margin-top: 20px;
  max-width: 520px;
  color: var(--ink);
  font-size: 16px;
}

.cta-row {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 32px;
}

.panel {
  background: var(--bg-soft);
  border: 1px solid var(--line);
  border-radius: 8px;
}

.ticker {
  padding: 8px 8px 14px;
}

.ticker-head,
.ticker li {
  display: grid;
  grid-template-columns: 1.3fr 1fr 0.8fr;
  gap: 12px;
  align-items: center;
}

.ticker-head {
  padding: 14px 16px 8px;
  color: var(--muted);
  font-size: 12px;
  letter-spacing: 0.04em;
}

.ticker ul {
  list-style: none;
  margin: 0;
  padding: 0;
}

.ticker li {
  padding: 13px 16px;
  border-radius: 6px;
  font-size: 14px;
  color: var(--deep);
}

.ticker li:hover {
  background: #fff;
}

.pair {
  font-weight: 600;
  color: var(--heading);
}

.pair span,
.panel-note,
.note,
.footer,
.crumb,
.alt-link {
  color: var(--muted);
}

.num {
  font-variant-numeric: tabular-nums;
  text-align: right;
}

.up {
  color: var(--buy);
}

.down {
  color: var(--sell);
}

.panel-note {
  margin: 6px 16px 0;
  font-size: 12px;
}

.steps {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
  padding: 28px 0 72px;
}

.steps article {
  padding-top: 18px;
  border-top: 1px solid var(--line);
}

.steps span {
  color: var(--accent);
  font-size: 12px;
  letter-spacing: 0.16em;
}

.steps h3 {
  margin-top: 10px;
  font-size: 22px;
}

.steps p,
.card p,
.safe p,
.check p,
.section-head p {
  margin-top: 8px;
  color: var(--ink);
  font-size: 14px;
}

.section {
  padding: 20px 0 88px;
  scroll-margin-top: 92px;
}

.section-head {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  gap: 32px;
  margin-bottom: 28px;
}

.section-head h2,
.download-copy h2 {
  font-size: 40px;
  line-height: 1.2;
  letter-spacing: -0.03em;
}

.section-head p {
  max-width: 420px;
  margin-top: 0;
}

.sheet {
  overflow-x: auto;
  border-top: 1px solid var(--line);
}

.sheet table {
  width: 100%;
  min-width: 640px;
  border-collapse: collapse;
}

.sheet th,
.sheet td {
  padding: 18px 8px;
  text-align: left;
  font-size: 14px;
  border-bottom: 1px solid var(--line);
  color: var(--ink);
}

.sheet th {
  color: var(--muted);
  font-weight: 500;
  font-size: 12px;
  letter-spacing: 0.06em;
}

.sheet td:first-child {
  color: var(--heading);
  font-weight: 600;
}

.sheet td:not(:first-child),
.sheet th:not(:first-child) {
  text-align: right;
}

.cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
}

.card {
  padding: 24px 22px 22px;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 8px;
  min-height: 168px;
}

.card:hover {
  border-color: var(--accent);
}

.icon {
  width: 36px;
  height: 36px;
  display: grid;
  place-items: center;
  border-radius: 8px;
  background: var(--bg-soft);
  color: var(--accent);
}

.card h3 {
  margin-top: 18px;
  font-size: 20px;
}

.safe {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 40px;
  align-items: start;
}

.safe-list {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px 22px;
}

.safe-list article {
  padding-top: 14px;
  border-top: 1px solid var(--line);
}

.safe-list h3,
.check h3 {
  font-size: 18px;
}

.download-band {
  display: grid;
  grid-template-columns: 1.25fr 0.75fr;
  gap: 32px;
  align-items: center;
  padding: 40px;
  background: var(--bg-soft);
  border-radius: 12px;
}

.device {
  margin: 0 auto;
  width: 240px;
  padding: 32px 22px 36px;
  text-align: center;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 28px;
}

.device img {
  width: 72px;
  height: 72px;
  margin: 8px auto 0;
}

.device strong {
  display: block;
  margin-top: 16px;
  color: var(--heading);
  letter-spacing: 0.16em;
}

.device span {
  color: var(--muted);
  font-size: 13px;
}

.faq {
  border-top: 1px solid var(--line);
}

.faq details {
  border-bottom: 1px solid var(--line);
}

.faq summary {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  align-items: center;
  cursor: pointer;
  list-style: none;
  padding: 20px 0;
  color: var(--heading);
  font-size: 16px;
  font-weight: 500;
}

.faq summary::-webkit-details-marker {
  display: none;
}

.faq summary::after {
  content: "+";
  color: var(--accent);
  font-size: 22px;
  line-height: 1;
}

.faq details[open] summary::after {
  content: "–";
}

.faq details p {
  margin: -4px 0 18px;
  max-width: 720px;
  color: var(--ink);
  font-size: 14px;
}

.risk {
  margin-top: 28px;
  padding: 16px 18px;
  border-left: 2px solid var(--accent);
  color: var(--ink);
  background: var(--bg-soft);
  font-size: 13px;
}

.footer {
  padding: 28px 0 40px;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 13px;
}

.footer-inner {
  display: flex;
  justify-content: space-between;
  gap: 24px;
  align-items: flex-start;
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 18px;
}

.footer a:hover,
.crumb a:hover,
.alt-link a:hover {
  color: var(--deep);
}

.page-hero {
  padding: 72px 0 24px;
}

.page-hero h1 {
  font-size: 52px;
  line-height: 1.12;
  letter-spacing: -0.04em;
}

.crumb {
  margin-bottom: 18px;
  font-size: 13px;
}

.checks {
  display: grid;
  gap: 0;
  margin-top: 48px;
}

.check {
  display: grid;
  grid-template-columns: 48px 1fr;
  gap: 12px;
  align-items: start;
  padding: 22px 0;
  border-top: 1px solid var(--line);
}

.check b {
  color: var(--accent);
  font-size: 13px;
  letter-spacing: 0.12em;
  font-weight: 600;
}

.alt-link {
  margin-top: 18px;
  font-size: 14px;
}

.alt-link a {
  color: var(--heading);
}

@media (max-width: 960px) {
  h1,
  .page-hero h1 {
    font-size: 40px;
  }

  .hero-grid,
  .page-grid,
  .safe,
  .download-band,
  .cards,
  .steps,
  .safe-list {
    grid-template-columns: 1fr;
  }

  .section-head,
  .footer-inner {
    flex-direction: column;
    align-items: flex-start;
  }

  .section-head h2,
  .download-copy h2 {
    font-size: 32px;
  }

  .header {
    height: auto;
  }

  .header-inner {
    flex-wrap: wrap;
    gap: 12px 16px;
    padding: 12px 0;
  }

  .nav {
    order: 3;
    flex: 1 1 100%;
  }

  .nav-list {
    overflow-x: auto;
    padding-bottom: 4px;
  }

  .header-actions {
    margin-left: auto;
  }
}

@media (max-width: 640px) {
  .wrap {
    width: min(var(--max), calc(100% - 32px));
  }

  h1,
  .page-hero h1 {
    font-size: 34px;
  }

  .hero,
  .page-hero {
    padding-top: 40px;
  }

  .cta-row .btn,
  .header-actions .btn {
    height: 40px;
  }

  .download-band {
    padding: 24px;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  .btn {
    transition: none;
  }
}