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

html {
  -webkit-text-size-adjust: 100%;
  text-size-adjust: 100%;
}

html:focus-within {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-width: 320px;
  overflow-x: hidden;
  font-family: "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  background:
    radial-gradient(1200px 500px at 80% -10%, rgba(78, 224, 194, 0.16), transparent 50%),
    radial-gradient(900px 400px at 0% 20%, rgba(231, 195, 122, 0.08), transparent 45%),
    #071018;
  color: #e8f4f2;
  line-height: 1.55;
}

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

button,
input,
select,
textarea {
  font: inherit;
  font-size: 16px;
}

:focus-visible {
  outline: 2px solid #4ee0c2;
  outline-offset: 3px;
}

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

:root {
  --bg: #071018;
  --bg-2: #0d1a24;
  --card: rgba(16, 32, 44, 0.86);
  --line: rgba(173, 216, 230, 0.16);
  --text: #e8f4f2;
  --muted: #9bb4be;
  --up: #3dffb0;
  --down: #ff5d73;
  --gold: #e7c37a;
  --accent: #4ee0c2;
  --ink: #04231d;
}

.skip-link {
  position: absolute;
  left: 12px;
  top: 12px;
  z-index: 40;
  transform: translateY(-120%);
  background: var(--accent);
  color: var(--ink);
  padding: 12px 16px;
  border-radius: 999px;
  font-weight: 700;
}

.skip-link:focus {
  transform: none;
}

.container {
  width: min(100% - 32px, 1200px);
  margin-inline: auto;
}

.layout-child {
  min-width: 0;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  min-width: 44px;
  padding: 0.7rem 1.15rem;
  border: 1px solid transparent;
  border-radius: 999px;
  font-weight: 700;
  cursor: pointer;
  background: transparent;
  color: var(--text);
}

.btn.primary {
  background: var(--accent);
  color: var(--ink);
}

.btn.ghost {
  border-color: var(--line);
}

.btn:disabled {
  opacity: 0.55;
  cursor: not-allowed;
}

.ticker {
  overflow: hidden;
  border-bottom: 1px solid var(--line);
  background: #050d13;
  font-variant-numeric: tabular-nums;
  font-size: 0.82rem;
}

.ticker-track {
  display: flex;
  gap: 2rem;
  width: max-content;
  padding: 0.5rem 0;
  animation: marquee 28s linear infinite;
}

.ticker-item {
  color: var(--muted);
  white-space: nowrap;
}

.ticker-item b {
  color: var(--text);
  font-weight: 700;
  margin: 0 0.35rem;
}

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

@keyframes marquee {
  from { transform: translateX(0); }
  to { transform: translateX(-50%); }
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  padding-top: env(safe-area-inset-top);
  border-bottom: 1px solid var(--line);
  background: rgba(7, 16, 24, 0.78);
  -webkit-backdrop-filter: blur(16px);
  backdrop-filter: blur(16px);
}

.header-bar {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  min-height: 64px;
}

.logo {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  font-weight: 800;
  letter-spacing: 0.02em;
  margin-inline-end: auto;
}

.logo img {
  width: 28px;
  height: 28px;
  flex: 0 0 auto;
}

.nav-links {
  display: none;
  gap: 1.1rem;
  color: var(--muted);
}

.nav-links a,
.mobile-panel a {
  min-height: 44px;
  display: inline-flex;
  align-items: center;
}

.header-tools {
  display: flex;
  align-items: center;
  gap: 0.45rem;
}

.nav-desktop-cta {
  display: none;
  gap: 0.45rem;
}

.icon-btn {
  min-width: 44px;
  min-height: 44px;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: transparent;
  color: var(--text);
  cursor: pointer;
}

.lang-switch {
  position: relative;
}

.lang-toggle {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.35rem;
  min-height: 44px;
  max-width: 13.5rem;
  padding: 0 0.85rem;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: transparent;
  color: var(--text);
  cursor: pointer;
}

.lang-toggle strong {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.lang-menu {
  position: absolute;
  inset-inline-end: 0;
  top: calc(100% + 8px);
  margin: 0;
  padding: 0.35rem;
  list-style: none;
  min-width: 14rem;
  max-height: min(70vh, 440px);
  overflow-y: auto;
  overscroll-behavior: contain;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: #0b1a24;
  box-shadow: 0 16px 40px rgba(0, 0, 0, 0.35);
}

.lang-menu[hidden] {
  display: none;
}

.lang-menu [role="option"] {
  min-height: 44px;
  display: flex;
  align-items: center;
  padding: 0 0.75rem;
  border-radius: 8px;
  cursor: pointer;
}

.lang-menu [role="option"][aria-selected="true"],
.lang-menu [role="option"]:hover,
.lang-menu [role="option"]:focus {
  background: rgba(78, 224, 194, 0.14);
}

.mobile-panel {
  display: none;
  padding: 0.4rem 0 1rem;
}

.mobile-panel.is-open {
  display: grid;
  gap: 0.2rem;
}

.hero {
  display: grid;
  gap: 1.8rem;
  padding: 2.4rem 0 2.6rem;
  min-height: 100vh;
  min-height: 100dvh;
  align-content: center;
}

.eyebrow {
  color: var(--gold);
  letter-spacing: 0.16em;
  font-size: 0.75rem;
  margin: 0 0 0.8rem;
}

.hero h1 {
  font-size: clamp(2rem, 8vw, 4.1rem);
  line-height: 1.12;
  margin: 0 0 1rem;
  letter-spacing: -0.03em;
}

.lead {
  color: var(--muted);
  font-size: 1.05rem;
  max-width: 36rem;
  margin: 0;
}

.hero-cta {
  display: flex;
  gap: 0.8rem;
  margin: 1.4rem 0 1.6rem;
  flex-wrap: wrap;
}

.hero-stats {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0.6rem;
  margin: 0;
  padding: 1rem 0 0;
  border-top: 1px solid var(--line);
  max-width: 32rem;
}

.hero-stats dt {
  color: var(--muted);
  font-size: 0.78rem;
}

.hero-stats dd {
  margin: 0.15rem 0 0;
  font-size: 1.2rem;
  font-weight: 800;
}

.hero-panel {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 20px;
  padding: 1.1rem 1.1rem 1rem;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.28);
}

.panel-head {
  display: flex;
  justify-content: space-between;
  gap: 0.8rem;
  color: var(--muted);
  font-size: 0.85rem;
}

.live {
  color: var(--up);
  display: flex;
  align-items: center;
  gap: 0.4rem;
}

.live i {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--up);
  box-shadow: 0 0 0 0 rgba(61, 255, 176, 0.7);
  animation: pulse 1.6s infinite;
}

@keyframes pulse {
  70% { box-shadow: 0 0 0 8px rgba(61, 255, 176, 0); }
}

.index-grid {
  display: grid;
  gap: 0.55rem;
  margin: 1rem 0 0.6rem;
}

.index-row {
  display: grid;
  grid-template-columns: minmax(0, 1.2fr) minmax(0, 1fr) minmax(0, 0.8fr);
  gap: 0.4rem;
  padding: 0.7rem 0.75rem;
  border-radius: 12px;
  background: rgba(7, 16, 24, 0.45);
  font-variant-numeric: tabular-nums;
}

.index-row span:last-child {
  text-align: end;
}

.chart {
  width: 100%;
  height: auto;
  margin-top: 0.4rem;
}

.chart-line {
  fill: none;
  stroke: var(--up);
  stroke-width: 2.4;
}

.chart-fill {
  fill: url(#fillUp);
}

.panel-note {
  color: var(--muted);
  font-size: 0.75rem;
  margin: 0.35rem 0 0;
}

.section {
  padding: 3.2rem 0;
}

.section.alt {
  background: var(--bg-2);
}

.section-head {
  max-width: 40rem;
  margin-bottom: 1.5rem;
}

.section-head h2,
.cta h2 {
  margin: 0 0 0.5rem;
  font-size: clamp(1.55rem, 4vw, 2rem);
  letter-spacing: -0.03em;
}

.section-head p,
.cta-lead {
  margin: 0;
  color: var(--muted);
}

.market-cards,
.stock-grid,
.bento,
.price-row {
  display: grid;
  gap: 1rem;
}

.market-cards,
.stock-grid,
.bento,
.price-row {
  grid-template-columns: 1fr;
}

.card,
.bento article,
.price-row article {
  min-width: 0;
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 16px;
  padding: 1.15rem 1.2rem;
}

.card h3,
.bento h3 {
  margin: 0 0 0.35rem;
}

.price {
  font-size: 1.4rem;
  font-weight: 800;
  font-variant-numeric: tabular-nums;
}

.meta {
  color: var(--muted);
  font-size: 0.86rem;
}

.bento p {
  color: var(--muted);
  margin: 0;
}

.price-row {
  text-align: center;
}

.price-row span {
  color: var(--muted);
  display: block;
}

.price-row strong {
  font-size: 1.4rem;
}

.cta-wrap {
  padding: 0 0 5.5rem;
}

.cta {
  padding: 1.6rem 1.1rem 1.4rem;
  border-radius: 24px;
  border: 1px solid var(--line);
  background:
    linear-gradient(180deg, rgba(78, 224, 194, 0.12), rgba(7, 16, 24, 0.3)),
    var(--bg-2);
  text-align: center;
}

.cta-form {
  display: grid;
  gap: 0.8rem;
  margin: 1.3rem auto 0;
  text-align: left;
  max-width: 48rem;
}

.cta-form label {
  color: var(--muted);
  font-size: 0.9rem;
  display: grid;
  gap: 0.35rem;
}

.cta-form input,
.cta-form select {
  width: 100%;
  min-height: 48px;
  background: #071018;
  color: var(--text);
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 0.8rem 0.9rem;
}

.field-error {
  color: var(--down);
  font-size: 0.85rem;
  min-height: 1.2em;
}

.form-status {
  margin: 0.9rem 0 0;
  color: var(--muted);
}

.form-status.is-ok {
  color: var(--up);
}

.site-footer {
  padding: 0 0 calc(1.4rem + env(safe-area-inset-bottom));
  color: var(--muted);
  font-size: 0.9rem;
}

.sticky-action {
  position: fixed;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 15;
  display: flex;
  justify-content: center;
  padding: 10px 16px max(16px, env(safe-area-inset-bottom));
  background: rgba(7, 16, 24, 0.92);
  -webkit-backdrop-filter: blur(16px);
  backdrop-filter: blur(16px);
  border-top: 1px solid var(--line);
}

.sticky-action .btn {
  width: min(100%, 420px);
}

.menu-toggle {
  display: inline-flex;
}

@media (min-width: 768px) {
  .market-cards,
  .stock-grid,
  .price-row {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .bento {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .hero {
    grid-template-columns: 1.05fr 0.95fr;
    align-items: center;
    padding-top: 3.4rem;
  }

  .cta {
    padding: 2.3rem;
  }

  .cta-form {
    grid-template-columns: minmax(0, 1.2fr) minmax(0, 1fr) auto;
    align-items: end;
  }
}

@media (min-width: 1024px) {
  .nav-links,
  .nav-desktop-cta {
    display: flex;
  }

  .menu-toggle,
  .mobile-panel,
  .mobile-panel.is-open,
  .sticky-action {
    display: none;
  }

  .bento,
  .price-row {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .cta-wrap {
    padding-bottom: 3.5rem;
  }
}

@media (min-width: 1440px) {
  .hero h1 {
    font-size: 4.1rem;
  }
}

@media (max-width: 430px) and (orientation: landscape) {
  .hero {
    min-height: 0;
    padding-top: 1.4rem;
  }
}

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

  *,
  *::before,
  *::after {
    animation: none !important;
    transition: none !important;
  }
}