:root {
  --ink: #26262B;
  --ink-muted: #767B87;
  --bg: #F3F4F7;
  --card: #FFFFFF;
  --accent: #E7A521;
  --hairline: #E6E8EC;
}
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  line-height: 1.65;
}
header {
  position: sticky; top: 0; z-index: 10;
  display: flex; align-items: center; justify-content: space-between;
  gap: 12px; padding: 14px 20px;
  background: var(--ink); color: #fff;
}
header .brand { display: flex; align-items: center; gap: 10px; font-weight: 800; letter-spacing: -0.3px; }
header .brand .dot { width: 22px; height: 22px; border-radius: 7px; background: var(--accent); display: inline-block; }
header .brand a { color: #fff; text-decoration: none; }
.lang { display: flex; gap: 6px; }
.lang-btn {
  border: 0; cursor: pointer; padding: 6px 12px; border-radius: 999px;
  font-weight: 700; font-size: 13px; color: rgba(255,255,255,.7);
  background: rgba(255,255,255,.12);
}
.lang-btn.active { color: var(--ink); background: var(--accent); }
main {
  max-width: 760px; margin: 0 auto; padding: 28px 20px 80px;
}
.card { background: var(--card); border-radius: 18px; padding: 26px 24px; box-shadow: 0 6px 24px rgba(38,38,43,.06); }
h1 { font-size: 27px; font-weight: 800; letter-spacing: -0.5px; margin: 4px 0 18px; }
h2 { font-size: 19px; font-weight: 800; margin: 28px 0 8px; }
h3 { font-size: 16px; font-weight: 700; margin: 20px 0 6px; }
p, li { color: #33333A; }
a { color: var(--accent); }
strong { color: var(--ink); }
table { border-collapse: collapse; width: 100%; margin: 12px 0; font-size: 14px; }
th, td { border: 1px solid var(--hairline); padding: 8px 10px; text-align: left; vertical-align: top; }
th { background: #FAFAFB; font-weight: 700; }
hr { display: none; }
.muted { color: var(--ink-muted); font-size: 13px; }
footer { max-width: 760px; margin: 0 auto; padding: 0 20px 60px; color: var(--ink-muted); font-size: 13px; }
footer a { color: var(--ink-muted); }