:root {
  --ink: #12211b;
  --green: #087f58;
  --pale: #edf4f0;
  --line: #d6e0da;
  --muted: #5b6b64;
  --gold: #b6aa42;
}
* {
  box-sizing: border-box;
}
html {
  scroll-behavior: smooth;
}
body {
  margin: 0;
  color: var(--ink);
  font:
    16px/1.8 "Microsoft YaHei",
    "PingFang SC",
    Arial,
    sans-serif;
  background: #fff;
}
a {
  color: inherit;
}
header {
  position: sticky;
  top: 0;
  z-index: 5;
  background: rgba(255, 255, 255, 0.96);
  border-bottom: 1px solid var(--line);
}
nav {
  max-width: 1180px;
  margin: auto;
  padding: 18px 28px;
  display: flex;
  align-items: center;
  gap: 28px;
}
.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
  font-weight: 800;
  letter-spacing: 0.08em;
}
.brand img {
  width: 42px;
  height: 42px;
  object-fit: contain;
}
.navlinks {
  margin-left: auto;
  display: flex;
  gap: 24px;
  align-items: center;
}
.navlinks a {
  text-decoration: none;
}
.navlinks .cta,
.cta {
  padding: 10px 18px;
  background: var(--green);
  color: #fff;
  text-decoration: none;
  font-weight: 700;
}
.hero {
  background: var(--pale);
  padding: 88px 28px;
}
.wrap {
  max-width: 1180px;
  margin: auto;
}
.eyebrow {
  color: var(--green);
  font-size: 13px;
  font-weight: 800;
  letter-spacing: 0.18em;
  text-transform: uppercase;
}
.hero h1 {
  font-size: clamp(42px, 6vw, 78px);
  line-height: 1.08;
  letter-spacing: -0.045em;
  max-width: 980px;
  margin: 20px 0;
}
.lead {
  font-size: 20px;
  max-width: 820px;
  color: var(--muted);
}
.section {
  padding: 76px 28px;
}
.section.alt {
  background: #f7f9f8;
}
.section h2 {
  font-size: clamp(30px, 4vw, 48px);
  line-height: 1.2;
  margin: 10px 0 26px;
}
.section h3 {
  font-size: 23px;
  line-height: 1.35;
}
.grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}
.card {
  border: 1px solid var(--line);
  padding: 30px;
  background: #fff;
}
.card p,
.copy p {
  color: var(--muted);
}
.copy {
  max-width: 850px;
}
.facts {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  border-top: 1px solid var(--line);
  border-left: 1px solid var(--line);
}
.fact {
  padding: 22px;
  border-right: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}
.fact strong {
  display: block;
  color: var(--green);
}
.steps {
  counter-reset: item;
}
.step {
  display: grid;
  grid-template-columns: 70px 1fr;
  gap: 20px;
  padding: 24px 0;
  border-top: 1px solid var(--line);
}
.step:before {
  counter-increment: item;
  content: "0" counter(item);
  color: var(--gold);
  font-weight: 800;
}
.downloads {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
  margin-top: 28px;
}
.download {
  border: 1px solid var(--green);
  color: var(--green);
  padding: 12px 18px;
  text-decoration: none;
  font-weight: 700;
}
.contact {
  background: #073f2f;
  color: #fff;
}
.contact p {
  color: #d7e6df;
}
.contact a {
  color: #fff;
}
footer {
  padding: 30px 28px;
  border-top: 1px solid var(--line);
  color: var(--muted);
}
footer .wrap {
  display: flex;
  justify-content: space-between;
  gap: 20px;
  flex-wrap: wrap;
}
@media (max-width: 760px) {
  nav {
    padding: 14px 18px;
  }
  .navlinks a:not(.cta) {
    display: none;
  }
  .hero,
  .section {
    padding: 54px 20px;
  }
  .grid,
  .facts {
    grid-template-columns: 1fr;
  }
  .hero h1 {
    font-size: 42px;
  }
  .lead {
    font-size: 18px;
  }
}