:root {
  --brand: #E8A400;
  --brand-soft: #FFF6E0;
  --bg: #FFFFFF;
  --bg-soft: #FAFAF8;
  --fg: #1C1C1E;
  --fg-muted: #6B6B70;
  --border: #E6E6E2;
  --radius: 14px;
}

@media (prefers-color-scheme: dark) {
  :root {
    --brand: #FFC730;
    --brand-soft: #2A2415;
    --bg: #121214;
    --bg-soft: #1A1A1D;
    --fg: #F2F2F4;
    --fg-muted: #A0A0A6;
    --border: #2E2E32;
  }
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--fg);
  font-family: -apple-system, BlinkMacSystemFont, "SF Pro Text", "PingFang SC",
    "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
}

.wrap { max-width: 760px; margin: 0 auto; padding: 56px 24px 96px; }

header.site {
  border-bottom: 1px solid var(--border);
  padding-bottom: 20px;
  margin-bottom: 40px;
}

header.site .brandline {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  font-size: 17px;
}

header.site .dot {
  width: 12px; height: 12px; border-radius: 50%;
  background: var(--brand);
  display: inline-block;
}

h1 { font-size: 30px; line-height: 1.35; margin: 0 0 8px; letter-spacing: -0.02em; }
h2 { font-size: 21px; margin: 44px 0 12px; letter-spacing: -0.01em; }
h3 { font-size: 16px; margin: 28px 0 8px; }
p, li { font-size: 15.5px; }
p { margin: 0 0 14px; }
ul, ol { padding-left: 22px; margin: 0 0 14px; }
li { margin-bottom: 6px; }

a { color: var(--brand); text-decoration: none; }
a:hover { text-decoration: underline; }

.lede { font-size: 17px; color: var(--fg-muted); margin-bottom: 32px; }
.meta { font-size: 13.5px; color: var(--fg-muted); }

.card {
  background: var(--bg-soft);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 18px 20px;
  margin: 0 0 16px;
}
.card h3 { margin-top: 0; }

.grid { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
@media (max-width: 620px) { .grid { grid-template-columns: 1fr; } }

.nav { display: flex; flex-wrap: wrap; gap: 10px; margin: 28px 0 0; }
.nav a {
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 7px 15px;
  font-size: 14px;
  color: var(--fg);
}
.nav a:hover { border-color: var(--brand); color: var(--brand); text-decoration: none; }

table { width: 100%; border-collapse: collapse; margin: 0 0 18px; font-size: 14.5px; }
th, td { text-align: left; padding: 9px 10px; border-bottom: 1px solid var(--border); vertical-align: top; }
th { color: var(--fg-muted); font-weight: 600; font-size: 13px; }

code {
  background: var(--brand-soft);
  border-radius: 5px;
  padding: 1px 6px;
  font-size: 13.5px;
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
}

hr { border: none; border-top: 1px solid var(--border); margin: 44px 0; }

footer.site {
  border-top: 1px solid var(--border);
  margin-top: 56px;
  padding-top: 20px;
  font-size: 13.5px;
  color: var(--fg-muted);
}

.lang-split { border-top: 1px dashed var(--border); margin: 40px 0; }