:root { color-scheme: light; --paper: #faf6ee; --ink: #2a2721; --muted: #6f6a5c; --line: #e9e1cf; --accent: #35765b; }
* { box-sizing: border-box; }
body { margin: 0; background: var(--paper); color: var(--ink); font: 16px/1.75 -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif; }
a { color: inherit; text-underline-offset: 5px; }
a:focus-visible { outline: 2px solid var(--accent); outline-offset: 6px; border-radius: 2px; }
.site-header, main, .site-footer { width: min(100% - 48px, 1040px); margin-inline: auto; }
.site-header { min-height: 98px; display: flex; align-items: center; justify-content: space-between; border-bottom: 1px solid var(--line); gap: 24px; }
.brand { display: inline-flex; align-items: center; gap: 12px; text-decoration: none; font-weight: 650; font-size: 21px; }
.brand-mark { display: grid; place-items: center; width: 42px; height: 42px; background: var(--accent); color: var(--paper); border-radius: 12px; font-size: 24px; }
nav a { color: var(--muted); font-size: 14px; }
.intro { padding: 96px 0 76px; }
.eyebrow { margin: 0 0 16px; color: var(--accent); font-size: 14px; font-weight: 600; letter-spacing: 2px; }
h1 { margin: 0; font-size: clamp(30px, 5vw, 52px); font-weight: 600; line-height: 1.35; letter-spacing: -1px; }
.lead { margin: 24px 0 0; color: var(--muted); font-size: 19px; }
.features { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); border-block: 1px solid var(--line); }
.features article { padding: 30px 28px; }
.features article:first-child { padding-left: 0; }
.features article:last-child { padding-right: 0; }
.features article + article { border-left: 1px solid var(--line); }
.index { color: var(--muted); font-size: 13px; }
h2 { margin: 12px 0; font-size: 20px; font-weight: 600; }
p { overflow-wrap: anywhere; }
.features p, .usage p, .legal p { color: var(--muted); }
.usage { padding: 40px 0 64px; }
.usage p { max-width: 680px; }
.text-link { color: var(--accent); font-size: 15px; }
.site-footer { min-height: 100px; border-top: 1px solid var(--line); display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 12px; color: var(--muted); font-size: 13px; }
.legal { max-width: 780px; padding-block: 64px; }
.legal h1 { font-size: 36px; }
.legal .updated { margin: 12px 0 36px; font-size: 14px; }
.legal section { margin-top: 32px; }
.legal p { margin: 12px 0; }
@media (max-width: 600px) {
  .site-header, main, .site-footer { width: calc(100% - 40px); }
  .site-header { min-height: 82px; }
  .intro { padding: 60px 0 44px; }
  .lead { font-size: 17px; }
  .features { grid-template-columns: 1fr; }
  .features article, .features article:first-child, .features article:last-child { padding: 24px 0; }
  .features article + article { border-left: 0; border-top: 1px solid var(--line); }
  .site-footer { padding-block: 24px; flex-direction: column; align-items: flex-start; justify-content: center; }
  .legal { padding-block: 44px; }
}