.site-footer {
  text-align: center;
  padding: 28px 20px 36px;
}

.site-footer .footer-copy,
.site-footer .footer-entity,
.site-footer .footer-beian {
  margin: 0;
}

.site-footer .footer-entity,
.site-footer .footer-beian {
  margin-top: 6px;
}

.site-footer .footer-beian a {
  color: inherit;
  text-decoration: none;
}

.site-footer .footer-beian a:hover {
  text-decoration: underline;
}

:root {
  --accent: #16a34a;
  --bg: #f7f7f4;
  --ink: #171717;
  --muted: #525252;
  --line: #e4e4e0;
  --code: #111827;
}

* { box-sizing: border-box; }
html, body { margin: 0; }
body {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  background: var(--bg);
  color: var(--ink);
  font-family: "IBM Plex Sans", "PingFang SC", "Noto Sans SC", sans-serif;
}

.site-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 16px 5vw;
  border-bottom: 2px solid var(--ink);
  background: #fff;
}
.brand { text-decoration: none; color: inherit; }
.brand-name { font-size: 22px; font-weight: 800; }
.brand-entity { display: block; font-size: 12px; color: var(--muted); }
.site-nav { display: flex; gap: 18px; flex-wrap: wrap; }
.site-nav a { color: var(--ink); text-decoration: none; font-size: 14px; font-weight: 600; }
.site-nav a:hover { color: var(--accent); }

main { flex: 1; }
.hero {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 32px;
  padding: 56px 5vw 28px;
  align-items: center;
}
.eyebrow { margin: 0 0 10px; color: var(--accent); font-weight: 700; font-size: 13px; }
.hero h1 {
  margin: 0;
  font-size: clamp(32px, 5vw, 52px);
  letter-spacing: -0.04em;
  line-height: 1.1;
}
.hero-lead { margin: 16px 0 0; color: var(--muted); font-size: 17px; line-height: 1.7; }
.code {
  margin: 0;
  padding: 18px 18px 20px;
  background: var(--code);
  color: #d1fae5;
  border-radius: 12px;
  font-size: 13px;
  line-height: 1.6;
  overflow: auto;
}

.uses {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
  padding: 12px 5vw 56px;
}
.uses article {
  background: #fff;
  border: 1px solid var(--line);
  padding: 20px;
}
.uses h2 { margin: 0 0 8px; font-size: 16px; }
.uses p { margin: 0; color: var(--muted); }

.site-footer {
  background: #fff;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 13px;
}

.inner-page .inner-main {
  flex: 1;
  width: min(720px, calc(100% - 10vw));
  margin: 0 auto;
  padding: 40px 0 64px;
}
.inner-page .kicker { margin: 0 0 8px; color: var(--accent); font-weight: 700; }
.inner-page h1 { margin: 0 0 16px; letter-spacing: -0.03em; }
.lead { color: var(--muted); }
.prose h2 { margin: 24px 0 8px; }
.prose p { margin: 0 0 12px; color: var(--muted); }
.contact-list { display: grid; gap: 12px; }
.contact-list div { background: #fff; border: 1px solid var(--line); padding: 16px; }
.contact-list dt { color: var(--accent); font-size: 12px; font-weight: 700; }
.contact-list dd { margin: 4px 0 0; }
.contact-list a { color: var(--accent); }

@media (max-width: 860px) {
  .site-header { flex-direction: column; align-items: flex-start; }
  .hero, .uses { grid-template-columns: 1fr; }
}