/* 对接文档站样式（ADR-510）：不引外部字体和脚本，浅色深色都能看，手机宽度侧栏收到上面。 */
:root {
  --bg: #ffffff;
  --fg: #1f2328;
  --muted: #59636e;
  --line: #d8dee4;
  --soft: #f6f8fa;
  --accent: #0b5cad;
  --note: #fff8e5;
  --note-line: #e3b341;
  color-scheme: light dark;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0f1419;
    --fg: #e6edf3;
    --muted: #9198a1;
    --line: #30363d;
    --soft: #161b22;
    --accent: #58a6ff;
    --note: #2b2410;
    --note-line: #9e6a03;
  }
}
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--fg);
  font: 15px/1.65 -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", "Noto Sans CJK SC", "Helvetica Neue", Arial, sans-serif;
}
a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }
code, pre { font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, "Liberation Mono", monospace; font-size: 13px; }
code { background: var(--soft); border: 1px solid var(--line); border-radius: 4px; padding: 0 4px; word-break: break-all; }
pre.code { background: var(--soft); border: 1px solid var(--line); border-radius: 6px; padding: 10px 12px; overflow-x: auto; margin: 4px 0 14px; }
pre.code code { background: none; border: 0; padding: 0; white-space: pre; word-break: normal; }
header.top {
  position: sticky; top: 0; z-index: 2;
  display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 8px 16px;
  padding: 10px 24px; background: var(--bg); border-bottom: 1px solid var(--line);
}
header.top .brand { font-weight: 600; font-size: 17px; color: var(--fg); }
nav.langs { display: flex; flex-wrap: wrap; gap: 4px 12px; font-size: 14px; }
nav.langs a[aria-current] { color: var(--fg); font-weight: 600; }
.layout { display: grid; grid-template-columns: 220px minmax(0, 1fr) 200px; gap: 32px; max-width: 1400px; margin: 0 auto; padding: 0 24px; }
nav.side ul, aside.toc ul { list-style: none; margin: 0; padding: 0; }
nav.side { position: sticky; top: 56px; align-self: start; padding: 20px 0; }
nav.side li a { display: block; padding: 5px 10px; border-radius: 6px; color: var(--fg); }
nav.side li a[aria-current] { background: var(--soft); font-weight: 600; }
aside.toc { position: sticky; top: 56px; align-self: start; padding: 24px 0; font-size: 13px; }
aside.toc p { margin: 0 0 6px; color: var(--muted); }
aside.toc li { margin: 3px 0; }
main { padding: 8px 0 48px; min-width: 0; }
main h1 { font-size: 28px; margin: 20px 0 12px; }
main h2 { font-size: 21px; margin: 36px 0 10px; padding-top: 8px; border-top: 1px solid var(--line); }
main h3 { font-size: 17px; margin: 24px 0 8px; }
a.anchor { visibility: hidden; margin-left: 6px; color: var(--muted); }
h2:hover a.anchor, h3:hover a.anchor { visibility: visible; }
.table-wrap { overflow-x: auto; margin: 8px 0 16px; }
table { border-collapse: collapse; width: 100%; font-size: 14px; }
th, td { border: 1px solid var(--line); padding: 6px 10px; text-align: left; vertical-align: top; }
th { background: var(--soft); font-weight: 600; white-space: nowrap; }
table.fields td:first-child, table.codes td:first-child { white-space: nowrap; }
code.hash { font-size: 11px; }
.note { background: var(--note); border-left: 4px solid var(--note-line); padding: 8px 14px; border-radius: 4px; margin: 12px 0; }
.note p { margin: 4px 0; }
.note.fallback { font-size: 14px; }
p.label { margin: 10px 0 2px; font-size: 13px; color: var(--muted); }
.example { border-left: 3px solid var(--line); padding-left: 12px; margin: 16px 0; }
footer { max-width: 1400px; margin: 0 auto; padding: 16px 24px 32px; color: var(--muted); font-size: 13px; border-top: 1px solid var(--line); }
body.chooser main { max-width: 560px; margin: 0 auto; padding: 48px 16px; }
body.chooser ul { list-style: none; padding: 0; }
body.chooser li a { display: block; padding: 12px 16px; margin: 8px 0; border: 1px solid var(--line); border-radius: 8px; }
@media (max-width: 1100px) {
  .layout { grid-template-columns: 200px minmax(0, 1fr); }
  aside.toc { display: none; }
}
@media (max-width: 760px) {
  header.top { position: static; padding: 10px 16px; }
  .layout { display: block; padding: 0 16px; }
  nav.side { position: static; padding: 8px 0; border-bottom: 1px solid var(--line); }
  nav.side ul { display: flex; flex-wrap: wrap; gap: 4px; }
  nav.side li a { padding: 4px 8px; }
  main h1 { font-size: 24px; }
}