:root {
  --color-ink: #07111f;
  --color-slate: #17272a;
  --color-paper: #f4f7fa;
  --color-white: #ffffff;
  --color-green: #18a877;
  --color-blue: #164e78;
  --color-copper: #c9a66b;
  --color-muted: #607083;
  --color-line: #d9e1e5;
  --content-width: 1180px;
  --gutter: clamp(18px, 4vw, 56px);
  --radius: 6px;
  --transition: 180ms ease-out;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: 88px;
}

body {
  margin: 0;
  min-width: 320px;
  background: var(--color-paper);
  color: var(--color-ink);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

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

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

.section-inner,
.header-inner,
.hero-inner,
.footer-inner {
  width: min(calc(100% - (2 * var(--gutter))), var(--content-width));
  margin-inline: auto;
}

.skip-link {
  position: fixed;
  top: 12px;
  left: 12px;
  z-index: 200;
  padding: 10px 14px;
  border-radius: var(--radius);
  background: var(--color-white);
  color: var(--color-ink);
  transform: translateY(-180%);
  transition: transform var(--transition);
}

.skip-link:focus-visible {
  transform: translateY(0);
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--color-ink);
  color: var(--color-paper);
  border-bottom: 1px solid rgba(244, 247, 250, 0.16);
}

.header-inner {
  position: relative;
  display: flex;
  min-height: 72px;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.brand {
  display: inline-flex;
  min-height: 44px;
  align-items: center;
  flex: 0 0 auto;
}

.brand img {
  width: 174px;
  height: auto;
}

.site-header .brand {
  min-width: 0;
  flex-shrink: 1;
}

.site-header .brand img {
  width: clamp(112px, 36vw, 174px);
}

.header-actions {
  display: flex;
  flex: 0 0 auto;
  align-items: center;
  gap: 8px;
}

.language-switcher {
  display: inline-flex;
  flex: 0 0 auto;
  align-items: center;
  gap: 2px;
  padding: 2px;
  border: 1px solid rgba(244, 247, 250, 0.24);
  border-radius: var(--radius);
}

.language-switcher button {
  display: inline-flex;
  min-width: 44px;
  min-height: 44px;
  align-items: center;
  justify-content: center;
  padding: 6px;
  border: 0;
  border-radius: 3px;
  background: transparent;
  color: #d9e3e4;
  font: inherit;
  font-size: 0.75rem;
  font-weight: 700;
  line-height: 1.2;
  cursor: pointer;
  transition: color var(--transition), background-color var(--transition);
}

.language-switcher button:hover {
  background: rgba(244, 247, 250, 0.1);
  color: var(--color-white);
}

.language-switcher button[aria-pressed="true"] {
  background: var(--color-copper);
  color: var(--color-ink);
}

.menu-toggle {
  display: inline-flex;
  width: 44px;
  height: 44px;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 5px;
  padding: 0;
  border: 1px solid rgba(244, 247, 250, 0.32);
  border-radius: var(--radius);
  background: transparent;
  color: var(--color-paper);
  cursor: pointer;
  transition: background-color var(--transition), border-color var(--transition);
}

.menu-toggle:hover {
  background: rgba(244, 247, 250, 0.1);
  border-color: rgba(244, 247, 250, 0.62);
}

.menu-toggle span {
  display: block;
  width: 19px;
  height: 2px;
  background: currentColor;
}

.site-nav {
  display: none;
  gap: 4px;
}

.site-nav a,
.footer-links a {
  display: inline-flex;
  min-height: 44px;
  align-items: center;
  padding: 8px 12px;
  border-radius: var(--radius);
  color: #d9e3e4;
  font-size: 0.9375rem;
  font-weight: 600;
  transition: color var(--transition), background-color var(--transition);
}

.site-nav a:hover,
.site-nav a:focus-visible,
.footer-links a:hover,
.footer-links a:focus-visible {
  background: rgba(244, 247, 250, 0.1);
  color: var(--color-white);
}

.site-nav .nav-desktop {
  color: #a8dfcb;
}

.site-nav .nav-login {
  margin-left: 6px;
  border: 1px solid rgba(201, 166, 107, 0.76);
  color: var(--color-white);
}

.site-nav .nav-login:hover,
.site-nav .nav-login:focus-visible {
  background: rgba(201, 166, 107, 0.14);
}

:where(a, button):focus-visible {
  outline: 3px solid var(--color-copper);
  outline-offset: 3px;
}

.hero {
  background: var(--color-ink);
  color: var(--color-paper);
}

.hero-inner {
  display: grid;
  gap: 24px;
  padding-block: 28px 32px;
}

.hero-copy {
  max-width: 580px;
}

.eyebrow {
  margin: 0 0 14px;
  color: var(--color-copper);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  line-height: 1.3;
  text-transform: uppercase;
}

.eyebrow-dark {
  color: var(--color-blue);
}

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

h1,
h2,
h3 {
  letter-spacing: 0;
}

h1 {
  max-width: 11ch;
  margin-bottom: 18px;
  color: var(--color-white);
  font-size: clamp(2.375rem, 1.75rem + 3vw, 4.5rem);
  font-weight: 700;
  line-height: 1.04;
}

h2 {
  max-width: 18ch;
  margin-bottom: 20px;
  font-size: clamp(1.875rem, 1.4rem + 1.8vw, 2.75rem);
  font-weight: 700;
  line-height: 1.12;
  text-wrap: balance;
}

h3 {
  margin-bottom: 10px;
  font-size: 1.25rem;
  font-weight: 700;
  line-height: 1.25;
}

.hero-lede,
.section-lede {
  max-width: 54ch;
  margin-bottom: 24px;
  color: #d7e1e2;
  font-size: clamp(1rem, 0.95rem + 0.3vw, 1.125rem);
  line-height: 1.65;
}

.hero-actions,
.app-actions {
  display: grid;
  gap: 8px;
  align-items: start;
}

.hero-actions .button-primary {
  width: 100%;
}

.hero-actions .button-secondary {
  min-height: 44px;
  justify-self: start;
  padding-inline: 14px;
  border-color: rgba(201, 166, 107, 0.5);
  color: #d7e1e2;
}

.button {
  display: inline-flex;
  min-height: 50px;
  align-items: center;
  justify-content: center;
  padding: 10px 18px;
  border: 1px solid transparent;
  border-radius: var(--radius);
  font-size: 0.9375rem;
  font-weight: 700;
  line-height: 1.2;
  text-align: center;
  transition: background-color var(--transition), border-color var(--transition), color var(--transition), transform var(--transition);
}

.button:hover {
  transform: translateY(-1px);
}

.button-primary {
  background: var(--color-green);
  color: var(--color-ink);
}

.button-primary:hover,
.button-primary:focus-visible {
  background: #56c49e;
}

.button-secondary {
  border-color: rgba(201, 166, 107, 0.86);
  color: var(--color-white);
}

.button-secondary:hover,
.button-secondary:focus-visible {
  background: rgba(201, 166, 107, 0.15);
}

.hero-preview {
  --preview-background: #101d2d;
  --preview-border: #293a4d;
  --preview-muted: #a4b4c8;
  --preview-negative: #ff929e;
  width: 100%;
  max-width: 540px;
  margin: 0;
  justify-self: center;
  border: 1px solid var(--preview-border);
  border-radius: 18px;
  background: var(--preview-background);
  box-shadow: 0 24px 60px rgba(0, 0, 0, 0.22);
  overflow: hidden;
}

.preview-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 18px 20px;
  border-bottom: 1px solid var(--preview-border);
  color: var(--color-white);
  font-size: 1rem;
  font-weight: 600;
}

.preview-status {
  padding: 4px 8px;
  border: 1px solid #544b3c;
  border-radius: 5px;
  background: #29281f;
  color: #dec292;
  font-size: 0.6875rem;
  font-weight: 500;
  white-space: nowrap;
}

.preview-spotlight {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 24px 20px;
}

.preview-instrument {
  display: flex;
  align-items: center;
  gap: 10px;
  min-width: 0;
}

.preview-instrument img {
  flex: 0 0 auto;
}

.preview-instrument strong,
.preview-instrument span,
.preview-quote strong,
.preview-quote span {
  display: block;
}

.preview-instrument strong {
  color: var(--color-white);
  font-size: 0.875rem;
  font-weight: 600;
}

.preview-instrument span {
  margin-top: 2px;
  color: var(--preview-muted);
  font-size: 0.75rem;
  font-weight: 400;
}

.preview-quote {
  flex: 0 0 auto;
  text-align: right;
  font-variant-numeric: tabular-nums;
}

.preview-quote strong {
  color: var(--color-white);
  font-size: clamp(1.625rem, 2.3vw, 2rem);
  font-weight: 600;
  line-height: 1.2;
  letter-spacing: -0.025em;
}

.preview-quote span {
  margin-top: 4px;
  color: var(--preview-muted);
  font-size: 0.75rem;
}

.preview-watchlist {
  width: calc(100% - 40px);
  margin-inline: 20px;
  border-collapse: collapse;
  table-layout: fixed;
  font-variant-numeric: tabular-nums;
}

.preview-watchlist th,
.preview-watchlist td {
  padding: 14px 0;
  border-bottom: 1px solid var(--preview-border);
  font-size: 0.875rem;
  white-space: nowrap;
}

.preview-watchlist th:first-child {
  width: 43%;
  text-align: left;
}

.preview-watchlist th:nth-child(2) {
  width: 34%;
}

.preview-watchlist th:last-child {
  width: 23%;
}

.preview-watchlist thead th {
  padding-block: 0 12px;
  color: var(--preview-muted);
  font-size: 0.6875rem;
  font-weight: 500;
}

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

.preview-watchlist td {
  color: #eef3f9;
  font-weight: 500;
}

.preview-watchlist td.preview-negative {
  color: var(--preview-negative);
}

.preview-watchlist tbody tr:last-child th,
.preview-watchlist tbody tr:last-child td {
  border-bottom: 0;
}

.preview-caption {
  display: flex;
  align-items: flex-start;
  gap: 8px;
  margin-top: 4px;
  padding: 16px 20px;
  border-top: 1px solid var(--preview-border);
  color: var(--preview-muted);
  font-size: 0.75rem;
  line-height: 1.5;
}

.preview-note-mark {
  width: 4px;
  height: 12px;
  margin-top: 3px;
  flex: 0 0 auto;
  border-radius: 2px;
  background: var(--color-copper);
}

@media (max-width: 959px) {
  .preview-header {
    padding-inline: 16px;
    font-size: 0.875rem;
  }

  .preview-spotlight {
    align-items: flex-start;
    flex-direction: column;
    gap: 14px;
    padding: 20px 16px;
  }

  .preview-quote {
    display: flex;
    align-items: baseline;
    gap: 8px;
    text-align: left;
  }

  .preview-quote strong {
    font-size: 1.75rem;
  }

  .preview-watchlist {
    width: calc(100% - 32px);
    margin-inline: 16px;
  }

  .preview-watchlist .preview-instrument {
    gap: 8px;
  }

  .preview-watchlist .preview-instrument img {
    width: 28px;
    height: 28px;
  }

  .preview-caption {
    padding-inline: 16px;
  }
}

.market-band,
.platform-section {
  background: var(--color-paper);
}

.market-band {
  border-bottom: 1px solid var(--color-line);
}

.market-inner {
  display: grid;
  gap: 30px;
  padding-block: 40px;
}

.market-band h2,
.platform-section h2 {
  color: var(--color-ink);
}

.section-lede {
  margin-bottom: 0;
  color: var(--color-muted);
}

.market-list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0 16px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.market-list li {
  display: flex;
  min-height: 68px;
  align-items: center;
  gap: 10px;
  border-top: 1px solid var(--color-line);
}

.market-dot {
  width: 10px;
  height: 10px;
  flex: 0 0 auto;
  border-radius: 50%;
}

.market-dot-green {
  background: var(--color-green);
}

.market-dot-copper {
  background: var(--color-copper);
}

.market-dot-blue {
  background: var(--color-blue);
}

.market-dot-slate {
  background: var(--color-slate);
}

.market-list strong,
.market-list small {
  display: block;
}

.market-list strong {
  color: var(--color-ink);
  font-size: 0.9375rem;
}

.market-list small {
  color: var(--color-muted);
  font-size: 0.8125rem;
}

.platform-section {
  padding-block: 44px;
}

.feature-grid {
  display: grid;
  gap: 0;
  margin-top: 26px;
  border-top: 1px solid var(--color-line);
}

.feature {
  padding: 20px 0;
  border-bottom: 1px solid var(--color-line);
}

.feature-index {
  display: block;
  margin-bottom: 12px;
  color: var(--color-copper);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.12em;
}

.feature p {
  max-width: 34ch;
  margin-bottom: 0;
  color: var(--color-muted);
}

.app-section {
  border-block: 1px solid var(--color-line);
  background: var(--color-white);
  color: var(--color-ink);
}

.app-inner {
  display: grid;
  gap: 28px;
  padding-block: 44px;
}

.app-section h2 {
  max-width: 15ch;
  color: var(--color-ink);
}

.app-section .eyebrow {
  color: var(--color-blue);
}

.app-section .app-copy > p:not(.eyebrow) {
  max-width: 48ch;
  margin-bottom: 26px;
  color: var(--color-muted);
}

.app-section .button-secondary {
  border-color: var(--color-blue);
  color: var(--color-ink);
}

.app-section .button-secondary:hover,
.app-section .button-secondary:focus-visible {
  background: #e8eef2;
  border-color: var(--color-blue);
}

.app-panel {
  width: 100%;
  max-width: 290px;
  margin: 0;
  padding: 0 10px 12px;
  justify-self: center;
  border: 1px solid #34474e;
  border-radius: 16px;
  background: #132229;
  color: var(--color-paper);
  box-shadow: 0 12px 32px rgba(7, 17, 31, 0.1);
}

.app-panel-top {
  display: flex;
  min-height: 42px;
  align-items: center;
  justify-content: space-between;
  padding-inline: 4px;
  color: #bed0d2;
  font-size: 0.6875rem;
  font-weight: 700;
  letter-spacing: 0.1em;
}

.app-panel-top span:last-child {
  color: var(--color-copper);
}

.app-device-screen {
  aspect-ratio: 2 / 3;
  overflow: hidden;
  border: 1px solid rgba(244, 247, 250, 0.18);
  border-radius: 8px;
  background: var(--color-paper);
}

.app-device-screen img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center 12%;
}

.app-panel-caption {
  display: grid;
  gap: 3px;
  margin: 12px 4px 0;
  color: #bed0d2;
  font-size: 0.75rem;
  line-height: 1.5;
}

.app-panel-caption strong {
  color: var(--color-white);
  font-size: 0.8125rem;
}

.site-footer {
  background: var(--color-ink);
  color: var(--color-paper);
}

.footer-inner {
  display: grid;
  gap: 26px;
  padding-block: 42px 30px;
}

.footer-brand p {
  max-width: 32ch;
  margin: 12px 0 0;
  color: #adbdc0;
  font-size: 0.875rem;
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: 2px;
  align-items: center;
}

.footer-links a {
  padding-inline: 8px;
  color: #c5d2d3;
  font-size: 0.875rem;
}

.footer-meta {
  margin: 0;
  color: #8ea0a4;
  font-size: 0.8125rem;
}

@media (min-width: 760px) {
  .hero-inner {
    grid-template-columns: minmax(0, 0.95fr) minmax(0, 1.05fr);
    align-items: center;
    gap: 32px;
    padding-block: 44px;
  }

  .hero-actions,
  .app-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
  }

  .button {
    min-width: 184px;
  }

  .hero-actions .button-primary {
    width: auto;
  }

  .hero-actions .button-secondary {
    min-height: 50px;
    color: var(--color-white);
  }

  .hero-preview {
    justify-self: end;
  }

  .market-inner {
    grid-template-columns: minmax(0, 1fr) minmax(320px, 0.86fr);
    align-items: center;
    gap: 48px;
    padding-block: 56px;
  }

  .platform-section {
    padding-block: 64px;
  }

  .feature-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 24px;
  }

  .feature {
    min-height: 208px;
    padding: 24px 24px 20px 0;
    border-right: 1px solid var(--color-line);
    border-bottom: 0;
  }

  .feature-index {
    margin-bottom: 24px;
  }

  .feature:last-child {
    border-right: 0;
  }

  .app-inner {
    grid-template-columns: minmax(0, 1fr) minmax(320px, 0.72fr);
    align-items: center;
    gap: 56px;
    padding-block: 64px;
  }

  .app-panel {
    justify-self: end;
  }

  .footer-inner {
    grid-template-columns: minmax(0, 1fr) auto;
    align-items: end;
  }

  .footer-meta {
    grid-column: 1 / -1;
  }
}

@media (min-width: 1100px) {
  .header-inner {
    min-height: 80px;
    gap: 20px;
  }

  .site-header .brand {
    order: 1;
  }

  .site-header .brand img {
    width: 190px;
  }

  .site-nav {
    display: flex;
    flex: 1 1 auto;
    order: 2;
    align-items: center;
    justify-content: flex-end;
  }

  .header-actions {
    order: 3;
  }

  .menu-toggle {
    display: none;
  }

  .hero-inner {
    gap: 64px;
    padding-block: 52px 56px;
  }

  .hero-actions .button-secondary {
    border-color: rgba(201, 166, 107, 0.72);
  }
}

@media (max-width: 1099px) {
  .site-nav[data-open="true"] {
    position: absolute;
    top: calc(100% + 1px);
    right: 0;
    left: 0;
    display: flex;
    flex-direction: column;
    gap: 2px;
    padding: 10px 12px 14px;
    border-bottom: 1px solid rgba(244, 247, 250, 0.2);
    background: var(--color-ink);
  }

  .site-nav[data-open="true"] a {
    width: 100%;
  }

  .site-nav .nav-login {
    margin: 4px 0 0;
    justify-content: center;
  }
}

@media (max-width: 759px) {
  .hero-preview {
    justify-self: stretch;
  }

  .footer-links {
    align-items: flex-start;
    flex-direction: column;
  }
}

:lang(zh-CN) h2 {
  max-width: 16em;
  line-height: 1.3;
}

:lang(zh-CN) .eyebrow,
:lang(zh-CN) .preview-header,
:lang(zh-CN) .app-panel-top {
  letter-spacing: 0.04em;
}

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

  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    scroll-behavior: auto !important;
    transition-duration: 0.01ms !important;
  }
}