.help-page {
  --help-code-bg: #eef2ef;
  --help-table-stripe: #f2f5f3;
  --help-sidebar-width: 260px;
  min-height: 100vh;
  font-size: 14px;
  line-height: 1.7;
}

.help-page .skip-link {
  position: absolute;
  left: -9999px;
  top: 8px;
  padding: 8px 12px;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 6px;
}
.help-page .skip-link:focus { left: 8px; z-index: 20; }

.help-header { background: var(--surface); border-bottom: 1px solid var(--line); position: sticky; top: 0; z-index: 10; }
.help-header-inner { display: flex; align-items: center; justify-content: space-between; gap: 24px; min-height: 56px; padding-inline: 24px; }
.help-header .site-brand { font-size: 19px; }
.help-header-nav { display: flex; align-items: center; gap: 20px; color: var(--muted); }
.help-header-nav a[aria-current="page"] { color: var(--ink); font-weight: 600; }
.help-header-back { padding: 6px 12px; border: 1px solid var(--line); border-radius: 6px; color: var(--ink); }

.help-layout { display: grid; grid-template-columns: var(--help-sidebar-width) minmax(0, 1fr); gap: 32px; width: min(1200px, calc(100% - 48px)); margin-inline: auto; padding-block: 32px 64px; }

.help-sidebar { position: sticky; top: 80px; align-self: start; max-height: calc(100vh - 96px); overflow: auto; padding-right: 8px; }
.help-sidebar-title { margin: 0 0 8px; font-size: 12px; font-weight: 600; text-transform: uppercase; letter-spacing: 0.04em; color: var(--muted); }
.help-chapters { margin: 0; padding: 0 0 0 20px; display: grid; gap: 2px; }
.help-chapters li::marker { color: var(--muted); font-size: 12px; }
.help-chapters a, .help-sidebar-extra a { display: block; padding: 5px 8px; border-radius: 5px; color: var(--ink); }
.help-chapters a[aria-current="page"], .help-sidebar-extra a[aria-current="page"] { background: var(--help-code-bg); font-weight: 600; }
.help-sidebar-extra { margin: 12px 0 0; padding-top: 12px; border-top: 1px solid var(--line); }

.help-main { min-width: 0; }
.help-article { background: var(--surface); border: 1px solid var(--line); border-radius: 10px; padding: 32px 40px; }
.help-article > :first-child { margin-top: 0; }
.help-article h1 { font-size: 28px; line-height: 1.3; font-weight: 600; margin: 0 0 20px; }
.help-article h2 { font-size: 20px; line-height: 1.4; font-weight: 600; margin: 36px 0 12px; padding-top: 16px; border-top: 1px solid var(--line); text-wrap: initial; }
.help-article h3 { font-size: 16px; line-height: 1.5; font-weight: 600; margin: 24px 0 8px; }
.help-article h4 { font-size: 14px; margin: 16px 0 6px; }
.help-article p { margin: 0 0 12px; }
.help-article ul, .help-article ol { margin: 0 0 12px; padding-left: 24px; }
.help-article li { margin: 2px 0; }
.help-article li > p { margin: 0; }
.help-article a { color: var(--accent); text-decoration: underline; text-underline-offset: 2px; }
.help-article strong { font-weight: 600; }
.help-article code { font-family: "SFMono-Regular", Consolas, "Liberation Mono", Menlo, monospace; font-size: 0.92em; background: var(--help-code-bg); padding: 1px 5px; border-radius: 4px; }
.help-article pre { margin: 0 0 12px; padding: 12px 14px; background: var(--help-code-bg); border-radius: 6px; overflow: auto; }
.help-article pre code { background: none; padding: 0; font-size: 13px; }
.help-article blockquote { margin: 0 0 12px; padding: 4px 16px; border-left: 3px solid var(--line); color: var(--muted); }
.help-article table { width: 100%; border-collapse: collapse; margin: 0 0 16px; font-size: 13px; }
.help-article th, .help-article td { padding: 6px 10px; border: 1px solid var(--line); text-align: left; vertical-align: top; }
.help-article th { background: var(--help-table-stripe); font-weight: 600; }
.help-article tbody tr:nth-child(even) { background: var(--help-table-stripe); }
.help-article hr { border: 0; border-top: 1px solid var(--line); margin: 24px 0; }
.help-article img { max-width: 100%; }

.help-pager { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; margin-top: 24px; }
.help-pager-link { display: grid; gap: 2px; padding: 12px 16px; border: 1px solid var(--line); border-radius: 8px; background: var(--surface); color: var(--ink); }
.help-pager-link small { font-size: 12px; color: var(--muted); }
.help-pager-link span { font-weight: 600; }
.help-pager-next { text-align: right; }
.help-pager-link:hover { border-color: var(--accent); }

@media (max-width: 860px) {
  .help-layout { grid-template-columns: 1fr; gap: 20px; width: min(1200px, calc(100% - 24px)); padding-block: 16px 40px; }
  .help-sidebar { position: static; max-height: none; padding: 16px; background: var(--surface); border: 1px solid var(--line); border-radius: 10px; }
  .help-article { padding: 20px; }
  .help-header-inner { padding-inline: 12px; gap: 12px; }
  .help-header-nav { gap: 12px; }
  .help-pager { grid-template-columns: 1fr; }
}

@media (prefers-color-scheme: dark) {
  .help-page {
    --paper: #151b18;
    --surface: #1d2420;
    --ink: #e6ece8;
    --muted: #9aa8a0;
    --line: #2d3732;
    --accent: #7fd1b9;
    --help-code-bg: #262f2a;
    --help-table-stripe: #212925;
    color: var(--ink);
    background: var(--paper);
  }
}