:root {
  --bg: #f4f6f8;
  --surface: rgba(255, 255, 255, 0.82);
  --surface-solid: #ffffff;
  --ink: #1b2635;
  --muted: #667386;
  --line: rgba(27, 38, 53, 0.1);
  --blue: #2563eb;
  --blue-soft: #e9efff;
  --green: #17845a;
  --green-soft: #e8f6ef;
  --amber: #a76513;
  --amber-soft: #fdf2df;
  --shadow: 0 18px 45px rgba(30, 48, 70, 0.08);
  --radius: 22px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100vh;
  overflow-x: hidden;
  background:
    linear-gradient(rgba(27, 38, 53, 0.025) 1px, transparent 1px),
    linear-gradient(90deg, rgba(27, 38, 53, 0.025) 1px, transparent 1px),
    var(--bg);
  background-size: 34px 34px;
  color: var(--ink);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  -webkit-font-smoothing: antialiased;
}

a {
  color: inherit;
}

.page-glow {
  position: fixed;
  z-index: -1;
  border-radius: 50%;
  filter: blur(10px);
  pointer-events: none;
}

.page-glow-a {
  width: 520px;
  height: 520px;
  top: -220px;
  left: -160px;
  background: radial-gradient(circle, rgba(37, 99, 235, 0.13), transparent 68%);
}

.page-glow-b {
  width: 560px;
  height: 560px;
  right: -220px;
  bottom: -260px;
  background: radial-gradient(circle, rgba(23, 132, 90, 0.11), transparent 68%);
}

.site-header,
main,
.site-footer {
  width: min(1120px, calc(100% - 48px));
  margin-left: auto;
  margin-right: auto;
}

.site-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 28px 0;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 11px;
  text-decoration: none;
  letter-spacing: -0.02em;
}

.brand-mark {
  display: grid;
  place-items: center;
  width: 33px;
  height: 33px;
  border-radius: 10px;
  background: var(--ink);
  color: #fff;
  font-size: 16px;
  font-weight: 750;
}

.brand-name {
  font-size: 17px;
  font-weight: 750;
}

.brand-name span {
  color: var(--muted);
  font-weight: 550;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 24px;
  font-size: 14px;
}

.site-nav a {
  color: var(--muted);
  text-decoration: none;
  transition: color 160ms ease;
}

.site-nav a:hover,
.site-nav a:focus-visible {
  color: var(--ink);
}

.hero {
  padding: 92px 0 76px;
  max-width: 860px;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin: 0 0 26px;
  color: var(--muted);
  font-size: 12px;
  font-weight: 650;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.status-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--green);
  box-shadow: 0 0 0 5px rgba(23, 132, 90, 0.11);
}

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

h1 {
  margin-bottom: 28px;
  font-size: clamp(42px, 7vw, 78px);
  line-height: 1.08;
  letter-spacing: -0.065em;
  font-weight: 780;
}

h1 span {
  color: #8b98a8;
}

.hero-copy {
  max-width: 560px;
  margin-bottom: 32px;
  color: var(--muted);
  font-size: 17px;
  line-height: 1.85;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 11px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  min-height: 44px;
  padding: 0 19px;
  border: 1px solid transparent;
  border-radius: 12px;
  font-size: 14px;
  font-weight: 650;
  text-decoration: none;
  transition: transform 160ms ease, box-shadow 160ms ease, background 160ms ease;
}

.button:hover {
  transform: translateY(-2px);
}

.button-primary {
  background: var(--ink);
  color: #fff;
  box-shadow: 0 10px 20px rgba(27, 38, 53, 0.16);
}

.button-primary:hover {
  background: #27364b;
}

.button-ghost {
  border-color: var(--line);
  background: rgba(255, 255, 255, 0.55);
  color: var(--ink);
}

.button-ghost:hover {
  background: #fff;
}

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

.card {
  display: flex;
  flex-direction: column;
  min-height: 298px;
  padding: 22px;
  border: 1px solid rgba(27, 38, 53, 0.08);
  border-radius: var(--radius);
  background: var(--surface);
  box-shadow: var(--shadow);
  text-decoration: none;
  backdrop-filter: blur(14px);
  transition: transform 200ms ease, box-shadow 200ms ease, border-color 200ms ease;
}

.card:hover,
.card:focus-visible {
  transform: translateY(-5px);
  border-color: rgba(37, 99, 235, 0.2);
  box-shadow: 0 24px 55px rgba(30, 48, 70, 0.13);
  outline: none;
}

.card-top {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
}

.card-icon {
  display: grid;
  place-items: center;
  width: 52px;
  height: 52px;
  border-radius: 16px;
}

.card-icon svg {
  width: 25px;
  height: 25px;
}

.card-icon-blue {
  background: var(--blue-soft);
  color: var(--blue);
}

.card-icon-green {
  background: var(--green-soft);
  color: var(--green);
}

.card-icon-amber {
  background: var(--amber-soft);
  color: var(--amber);
}

.card-arrow {
  color: #98a4b3;
  font-size: 19px;
  line-height: 1;
  transition: transform 180ms ease, color 180ms ease;
}

.card:hover .card-arrow {
  color: var(--ink);
  transform: translate(2px, -2px);
}

.card-body {
  margin-top: 36px;
  padding-top: 0;
}

.card-kicker,
.section-label {
  margin-bottom: 9px;
  color: #8a97a7;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.card h2 {
  margin-bottom: 9px;
  font-size: 25px;
  letter-spacing: -0.035em;
}

.card p {
  margin-bottom: 0;
  color: var(--muted);
  font-size: 14px;
  line-height: 1.75;
}

.card-link {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-top: auto;
  padding-top: 16px;
  border-top: 1px solid var(--line);
  color: #536174;
  font-size: 12px;
  letter-spacing: 0.01em;
}

.about {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 60px;
  margin-top: 92px;
  padding: 48px 0 72px;
  border-top: 1px solid var(--line);
}

.about h2 {
  margin-bottom: 0;
  font-size: clamp(28px, 4vw, 40px);
  letter-spacing: -0.05em;
}

.about-copy p {
  color: var(--muted);
  font-size: 15px;
  line-height: 1.9;
}

.about-note {
  color: #8a97a7 !important;
  font-size: 13px !important;
}

.about-links {
  display: flex;
  flex-wrap: wrap;
  gap: 18px;
  margin-top: 24px;
}

.about-links a {
  color: var(--ink);
  font-size: 13px;
  font-weight: 600;
  text-decoration: underline;
  text-decoration-color: #bcc5cf;
  text-underline-offset: 4px;
}

.about-links a:hover {
  text-decoration-color: var(--ink);
}

.site-footer {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-end;
  justify-content: space-between;
  gap: 18px;
  padding: 26px 0 34px;
  border-top: 1px solid var(--line);
}

.site-footer p {
  margin: 0;
  font-size: 12px;
}

.footer-main {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 22px;
  color: #7d8a9a;
}

.footer-note {
  color: #9ba6b3;
}

.footer-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 9px;
  color: #8995a3;
  font-size: 12px;
}

.meta-divider {
  color: #c3cbd4;
}

@media (max-width: 860px) {
  .cards {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .card-about {
    grid-column: span 2;
  }

  .about {
    grid-template-columns: 1fr;
    gap: 24px;
  }
}

@media (max-width: 620px) {
  .site-header,
  main,
  .site-footer {
    width: min(100% - 32px, 1120px);
  }

  .site-header {
    align-items: flex-start;
    padding: 22px 0;
  }

  .site-nav {
    gap: 11px;
    font-size: 12px;
  }

  .hero {
    padding: 62px 0 52px;
  }

  h1 {
    font-size: clamp(32px, 9.2vw, 44px);
    letter-spacing: -0.055em;
    overflow-wrap: anywhere;
  }

  .hero-copy {
    max-width: 100%;
    font-size: 15px;
  }

  .cards {
    grid-template-columns: 1fr;
  }

  .card {
    min-height: 260px;
  }

  .card-about {
    grid-column: auto;
  }

  .about {
    margin-top: 56px;
    padding-top: 34px;
  }

  .site-footer {
    align-items: flex-start;
    flex-direction: column;
    padding-top: 22px;
  }
}