:root {
  --ink: #111111;
  --muted: #5c5f58;
  --line: #e4e6df;
  --background: #f7f7f4;
  --surface: #ffffff;
  --brand: #8fd926;
  --brand-deep: #4f8a10;
}
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--background);
  color: var(--ink);
  font: 17px/1.6 -apple-system, BlinkMacSystemFont, "SF Pro Text", "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}
a { color: var(--brand-deep); }
header.site {
  max-width: 760px;
  margin: 0 auto;
  padding: 24px 20px 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}
header.site a.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--ink);
  text-decoration: none;
  font-weight: 700;
  font-size: 20px;
  letter-spacing: -0.3px;
}
header.site a.brand img { width: 32px; height: 32px; border-radius: 8px; }
header.site nav { display: flex; gap: 16px; font-size: 15px; }
header.site nav a { color: var(--muted); text-decoration: none; }
header.site nav a:hover { color: var(--ink); }
main {
  max-width: 760px;
  margin: 0 auto;
  padding: 24px 20px 64px;
}
article {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 20px;
  padding: 32px 28px;
}
h1 { font-size: 34px; line-height: 1.15; letter-spacing: -0.8px; margin: 0 0 8px; }
h2 { font-size: 21px; letter-spacing: -0.3px; margin: 36px 0 8px; }
h3 { font-size: 17px; margin: 24px 0 4px; }
p, li { color: #2a2c27; }
.updated { color: var(--muted); font-size: 15px; margin: 0 0 24px; }
.summary {
  background: #eef6e3;
  border-radius: 14px;
  padding: 16px 20px;
  margin: 0 0 8px;
}
.summary ul { margin: 8px 0 0; padding-left: 20px; }
table { width: 100%; border-collapse: collapse; font-size: 15px; margin: 12px 0; }
th, td { text-align: left; vertical-align: top; padding: 10px 8px; border-bottom: 1px solid var(--line); }
th { color: var(--muted); font-weight: 600; }
.table-wrap { overflow-x: auto; }
footer.site {
  max-width: 760px;
  margin: 0 auto;
  padding: 0 20px 40px;
  color: var(--muted);
  font-size: 14px;
  display: flex;
  flex-wrap: wrap;
  gap: 8px 20px;
}
footer.site a { color: var(--muted); }
.hero { text-align: center; padding: 56px 8px 32px; }
.hero img { width: 112px; height: 112px; border-radius: 26px; box-shadow: 0 10px 30px rgba(63, 107, 12, 0.18); }
.hero h1 { font-size: 44px; margin-top: 24px; }
.hero p { font-size: 19px; color: var(--muted); max-width: 520px; margin: 8px auto 0; }
.features { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 12px; margin-top: 24px; }
.feature { background: var(--surface); border: 1px solid var(--line); border-radius: 16px; padding: 18px; }
.feature strong { display: block; margin-bottom: 4px; }
.feature span { color: var(--muted); font-size: 15px; }
@media (max-width: 520px) {
  article { padding: 24px 18px; }
  h1 { font-size: 28px; }
  .hero h1 { font-size: 36px; }
}