:root {
  --ink: #14201b;
  --muted: #5a6963;
  --line: #dbe7e1;
  --soft: #eef8f2;
  --brand: #156f49;
  --brand-dark: #0d4f36;
  --accent: #d89f35;
  --white: #fff;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
  color: var(--ink);
  background: #fbfdfb;
  line-height: 1.7;
  overflow-x: hidden;
}

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

.container {
  width: min(1120px, calc(100% - 32px));
  margin: 0 auto;
}

.nav {
  position: sticky;
  top: 0;
  z-index: 10;
  border-bottom: 1px solid rgba(20, 32, 27, 0.08);
  background: rgba(255, 255, 255, 0.94);
  backdrop-filter: blur(10px);
}

.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 72px;
  gap: 24px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 800;
  font-size: 22px;
}

.brand-mark {
  display: grid;
  place-items: center;
  width: 36px;
  height: 36px;
  border-radius: 8px;
  background: var(--brand);
  color: var(--white);
  font-size: 18px;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 22px;
  color: var(--muted);
  font-size: 15px;
}

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

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 0 18px;
  border-radius: 999px;
  border: 1px solid var(--brand);
  background: var(--brand);
  color: var(--white);
  font-weight: 700;
}

.button.secondary {
  background: var(--white);
  color: var(--brand);
}

.hero {
  padding: 72px 0 56px;
  background: linear-gradient(135deg, #f3faf5 0%, #ffffff 52%, #f7efe0 100%);
}

.hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(320px, 0.95fr);
  gap: 44px;
  align-items: center;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 18px;
  padding: 6px 12px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: var(--white);
  color: var(--brand-dark);
  font-size: 14px;
  font-weight: 700;
}

.dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--accent);
}

h1,
h2,
h3 {
  margin: 0;
  line-height: 1.18;
  letter-spacing: 0;
  overflow-wrap: anywhere;
}

h1 {
  font-size: clamp(38px, 6vw, 64px);
}

h2 {
  font-size: clamp(28px, 4vw, 42px);
}

h3 {
  font-size: 22px;
}

.lead {
  max-width: 720px;
  margin: 20px 0 0;
  color: var(--muted);
  font-size: 20px;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 30px;
}

.visual-card {
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: var(--white);
  box-shadow: 0 18px 48px rgba(20, 32, 27, 0.12);
}

.visual-card img {
  display: block;
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
}

.caption {
  padding: 14px 16px;
  color: var(--muted);
  font-size: 14px;
}

.section {
  padding: 70px 0;
}

.section.soft {
  background: var(--soft);
}

.section-head {
  max-width: 760px;
  margin-bottom: 32px;
}

.section-head p {
  margin: 14px 0 0;
  color: var(--muted);
  font-size: 18px;
}

.grid {
  display: grid;
  gap: 18px;
}

.grid.cols-3 {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

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

.card {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--white);
  padding: 24px;
}

.card p {
  margin: 10px 0 0;
  color: var(--muted);
}

.metric {
  font-size: 34px;
  font-weight: 900;
  color: var(--brand-dark);
}

.list {
  margin: 18px 0 0;
  padding-left: 22px;
  color: var(--muted);
}

.compare {
  overflow-x: auto;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--white);
}

table {
  width: 100%;
  border-collapse: collapse;
  min-width: 720px;
}

th,
td {
  padding: 16px;
  border-bottom: 1px solid var(--line);
  text-align: left;
  vertical-align: top;
}

th {
  background: #f5faf7;
  color: var(--brand-dark);
}

.footer {
  padding: 36px 0;
  border-top: 1px solid var(--line);
  color: var(--muted);
  background: var(--white);
}

.footer-grid {
  display: flex;
  justify-content: space-between;
  gap: 24px;
  flex-wrap: wrap;
}

.small {
  color: var(--muted);
  font-size: 14px;
}

@media (max-width: 820px) {
  .nav-inner {
    align-items: flex-start;
    flex-direction: column;
    padding: 14px 0;
  }

  .nav-links {
    flex-wrap: wrap;
    gap: 12px;
  }

  .hero-grid,
  .grid.cols-2,
  .grid.cols-3 {
    grid-template-columns: 1fr;
  }

  .hero {
    padding-top: 42px;
  }

  h1 {
    font-size: 34px;
    line-height: 1.25;
  }

  .lead {
    font-size: 17px;
  }
}