:root {
  color-scheme: light;
  --ink: #15212f;
  --muted: #5f6f82;
  --soft: #eef3f8;
  --line: #dbe3ec;
  --brand: #167a68;
  --brand-dark: #0f5d50;
  --accent: #e7b857;
  --paper: #ffffff;
  --bg: #f7fafc;
  --shadow: 0 18px 48px rgba(21, 33, 47, 0.12);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  color: var(--ink);
  background: var(--bg);
  line-height: 1.6;
}

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

.site-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  width: min(1120px, calc(100% - 40px));
  margin: 0 auto;
  padding: 22px 0;
}

.site-header.compact {
  border-bottom: 1px solid var(--line);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  min-width: 180px;
}

.brand-mark {
  display: grid;
  width: 42px;
  height: 42px;
  place-items: center;
  border-radius: 12px;
  color: #fff;
  background: var(--brand);
  font-weight: 800;
}

.brand strong,
.brand small {
  display: block;
}

.brand small {
  color: var(--muted);
  font-size: 12px;
}

.site-nav {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 8px 18px;
  color: var(--muted);
  font-size: 15px;
}

.site-nav a:hover {
  color: var(--brand-dark);
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1.06fr) minmax(320px, 0.94fr);
  gap: 44px;
  align-items: center;
  width: min(1120px, calc(100% - 40px));
  min-height: 620px;
  margin: 0 auto;
  padding: 52px 0 74px;
}

.hero h1 {
  max-width: 760px;
  margin: 12px 0 18px;
  font-size: clamp(40px, 7vw, 76px);
  line-height: 1.06;
  letter-spacing: 0;
}

.lead {
  max-width: 650px;
  margin: 0;
  color: var(--muted);
  font-size: 20px;
}

.eyebrow {
  margin: 0;
  color: var(--brand-dark);
  font-size: 13px;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 32px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 46px;
  padding: 0 20px;
  border: 1px solid var(--line);
  border-radius: 8px;
  font-weight: 700;
}

.button.primary {
  color: #fff;
  background: var(--brand);
  border-color: var(--brand);
}

.button.secondary {
  color: var(--brand-dark);
  background: #fff;
}

.product-panel {
  display: flex;
  justify-content: center;
}

.phone-frame {
  width: min(390px, 100%);
  aspect-ratio: 0.56;
  padding: 24px;
  border: 1px solid rgba(21, 33, 47, 0.12);
  border-radius: 32px;
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.92), rgba(247, 250, 252, 0.96)),
    radial-gradient(circle at 20% 20%, rgba(231, 184, 87, 0.25), transparent 32%),
    radial-gradient(circle at 90% 80%, rgba(22, 122, 104, 0.18), transparent 36%);
  box-shadow: var(--shadow);
}

.phone-top {
  width: 88px;
  height: 8px;
  margin: 2px auto 24px;
  border-radius: 99px;
  background: rgba(21, 33, 47, 0.16);
}

.app-card {
  display: grid;
  gap: 4px;
  margin-bottom: 14px;
  padding: 18px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.86);
}

.app-card.active {
  color: #fff;
  background: var(--brand);
  border-color: var(--brand);
}

.app-card span {
  font-size: 14px;
  opacity: 0.9;
}

.app-card strong {
  font-size: 40px;
  line-height: 1;
}

.app-card small {
  opacity: 0.72;
}

.chart-row {
  display: flex;
  align-items: end;
  gap: 12px;
  height: 158px;
  margin-top: 28px;
  padding: 18px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.78);
}

.chart-row i {
  flex: 1;
  min-width: 28px;
  border-radius: 6px 6px 2px 2px;
  background: linear-gradient(180deg, var(--accent), var(--brand));
}

.section {
  width: min(1120px, calc(100% - 40px));
  margin: 0 auto 28px;
  padding: 42px 0;
  border-top: 1px solid var(--line);
}

.section-heading {
  margin-bottom: 24px;
}

.section h2 {
  margin: 6px 0 0;
  font-size: 32px;
  letter-spacing: 0;
}

.info-grid,
.contact-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
}

.info-grid article,
.contact-grid a {
  min-height: 142px;
  padding: 22px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--paper);
}

.info-grid h3,
.contact-grid span {
  display: block;
  margin: 0 0 12px;
  color: var(--muted);
  font-size: 14px;
  font-weight: 700;
}

.info-grid p,
.contact-grid strong {
  margin: 0;
  font-size: 18px;
}

.product-copy {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(300px, 0.8fr);
  gap: 32px;
  align-items: start;
}

.product-copy p {
  margin: 0;
  color: var(--muted);
  font-size: 19px;
}

.feature-list {
  display: grid;
  gap: 10px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.feature-list li {
  padding: 14px 16px;
  border-left: 4px solid var(--brand);
  border-radius: 6px;
  background: #fff;
}

.legal-page {
  width: min(920px, calc(100% - 40px));
  margin: 0 auto;
  padding: 44px 0 64px;
}

.legal-card {
  padding: 48px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
}

.legal-card h1 {
  margin: 10px 0 4px;
  font-size: 42px;
}

.legal-card h2 {
  margin: 30px 0 10px;
  font-size: 22px;
}

.legal-card p {
  color: #324255;
}

.legal-card a {
  color: var(--brand-dark);
  font-weight: 700;
}

.updated {
  color: var(--muted);
}

.site-footer {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 10px 24px;
  width: min(1120px, calc(100% - 40px));
  margin: 0 auto;
  padding: 26px 0 34px;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 14px;
}

.site-footer p {
  margin: 0;
}

.site-footer a {
  color: var(--brand-dark);
}

@media (max-width: 860px) {
  .site-header,
  .hero,
  .product-copy,
  .info-grid,
  .contact-grid {
    grid-template-columns: 1fr;
  }

  .site-header {
    display: grid;
  }

  .site-nav {
    justify-content: flex-start;
  }

  .hero {
    min-height: auto;
    padding-top: 28px;
  }

  .hero h1 {
    font-size: 42px;
  }

  .lead {
    font-size: 18px;
  }

  .legal-card {
    padding: 28px;
  }
}

@media (max-width: 520px) {
  .site-header,
  .hero,
  .section,
  .legal-page,
  .site-footer {
    width: min(100% - 28px, 1120px);
  }

  .hero h1 {
    font-size: 36px;
  }

  .button {
    width: 100%;
  }

  .phone-frame {
    border-radius: 24px;
  }

  .legal-card h1 {
    font-size: 32px;
  }
}