/* Public user manual (/help): hero search, sticky table of contents, topic articles. */
body.help { background: var(--bg); color: var(--text); }
.btn-sm { height: 34px; padding: 0 14px; font-size: 13.5px; }

.hp-top { position: sticky; top: 0; z-index: 20; display: flex; align-items: center; gap: 14px; height: 60px; padding: 0 24px; background: color-mix(in srgb, var(--bg) 86%, transparent); backdrop-filter: blur(12px); border-bottom: 1px solid var(--border); }
.hp-top-title { padding-left: 14px; border-left: 1px solid var(--border); color: var(--text-2); font-weight: 500; }
.hp-top-right { margin-left: auto; display: flex; align-items: center; gap: 8px; }
.hp-theme { width: 36px; height: 36px; border: 0; border-radius: 10px; background: none; color: var(--text-2); cursor: pointer; font-size: 16px; }
.hp-theme:hover { background: var(--surface-2); color: var(--text); }

.hp-hero { padding: 56px 24px 36px; text-align: center; background:
  radial-gradient(60% 120% at 20% 0%, color-mix(in srgb, var(--primary) 16%, transparent), transparent 60%),
  radial-gradient(50% 100% at 85% 10%, color-mix(in srgb, var(--mint) 14%, transparent), transparent 60%); }
.hp-hero h1 { margin: 0 0 8px; font-family: var(--font-display); font-size: clamp(26px, 4vw, 38px); font-weight: 700; letter-spacing: -.01em; }
.hp-hero p { margin: 0 auto 24px; max-width: 620px; color: var(--text-2); }
.hp-search { display: flex; align-items: center; gap: 12px; max-width: 680px; height: 60px; margin: 0 auto; padding: 0 18px; border: 1px solid var(--border-strong); border-radius: 18px; background: var(--surface); box-shadow: var(--shadow-md); transition: border-color .15s, box-shadow .15s; }
.hp-search:focus-within { border-color: var(--primary); box-shadow: 0 0 0 5px var(--primary-soft), var(--shadow-md); }
.hp-search > i { color: var(--muted); font-size: 18px; }
.hp-search input { flex: 1; min-width: 0; height: 100%; border: 0; outline: 0; background: transparent; color: var(--text); font: inherit; font-size: 17px; }
.hp-search kbd, .hp-text kbd { font-family: var(--font-mono); font-size: 12px; padding: 1px 7px; border-radius: 6px; border: 1px solid var(--border-strong); border-bottom-width: 2px; color: var(--text-2); background: var(--surface-2); }
.hp-popular { display: flex; flex-wrap: wrap; justify-content: center; gap: 8px; max-width: 760px; margin: 18px auto 0; }
.hp-chip { display: inline-flex; align-items: center; height: 32px; padding: 0 14px; border-radius: 999px; border: 1px solid var(--border); background: var(--surface); color: var(--text-2); font-size: 13.5px; text-decoration: none; transition: border-color .15s, color .15s; }
.hp-chip:hover { border-color: var(--primary); color: var(--primary); text-decoration: none; }

.hp-body { display: grid; grid-template-columns: 270px minmax(0, 1fr); gap: 40px; max-width: 1180px; margin: 0 auto; padding: 24px 24px 80px; align-items: start; }
.hp-toc { position: sticky; top: 76px; max-height: calc(100vh - 92px); overflow-y: auto; padding-right: 6px; scrollbar-width: thin; font-size: 14px; }
.hp-toc-sec { margin-bottom: 14px; }
.hp-toc-sec b { display: flex; align-items: center; gap: 8px; margin-bottom: 4px; font-size: 13px; color: var(--muted); font-weight: 600; }
.hp-toc-sec b i { width: 16px; text-align: center; color: var(--primary); }
.hp-toc ul { list-style: none; margin: 0; padding: 0 0 0 10px; border-left: 1px solid var(--border); }
.hp-toc a { display: block; padding: 4px 10px; margin-left: -11px; border-left: 2px solid transparent; color: var(--text-2); text-decoration: none; line-height: 1.45; }
.hp-toc a:hover { color: var(--text); }
.hp-toc a.on { border-left-color: var(--primary); color: var(--primary); font-weight: 600; }

.hp-main { min-width: 0; outline: none; }
.hp-status { margin: 0 0 14px; color: var(--text-2); }
.hp-status:empty { display: none; }
.hp-sec-title { display: flex; align-items: center; gap: 10px; margin: 28px 0 12px; font-family: var(--font-display); font-size: 21px; font-weight: 700; }
.hp-sec-title:first-child { margin-top: 0; }
.hp-sec-title i { width: 34px; height: 34px; border-radius: 10px; display: grid; place-items: center; font-size: 15px; color: var(--primary); background: var(--primary-soft); }
.hp-topic { scroll-margin-top: 80px; margin-bottom: 14px; padding: 20px 24px 18px; border: 1px solid var(--border); border-radius: 16px; background: var(--surface); }
.hp-topic:target { border-color: var(--primary); box-shadow: 0 0 0 4px var(--primary-soft); }
.hp-topic header { display: grid; grid-template-columns: minmax(0, 1fr) auto; align-items: start; column-gap: 10px; }
.hp-sec { grid-column: 1; display: inline-flex; align-items: center; gap: 6px; font-size: 12px; color: var(--muted); }
.hp-sec i { color: var(--primary); }
.hp-topic h2 { grid-column: 1; margin: 2px 0 10px; font-family: var(--font-display); font-size: 19px; font-weight: 700; line-height: 1.35; }
.hp-anchor { color: var(--text); text-decoration: none; }
.hp-anchor:hover { color: var(--primary); }
.hp-copy { grid-column: 2; grid-row: 1 / span 2; width: 34px; height: 34px; border: 0; border-radius: 9px; background: none; color: var(--faint); cursor: pointer; }
.hp-copy:hover { background: var(--surface-2); color: var(--text); }
.hp-copy.done { color: var(--success); }
.hp-copy.done i::before { content: "\f00c"; }

.hp-text { font-size: 15px; line-height: 1.75; color: var(--text-2); }
.hp-text p { margin: 0 0 10px; }
.hp-text ul, .hp-text ol { margin: 0 0 10px; padding-left: 22px; }
.hp-text li { margin: 3px 0; }
.hp-text b { color: var(--text); }
.hp-text a { color: var(--primary); }
.hp-text code { font-family: var(--font-mono); font-size: 13px; padding: 1px 6px; border-radius: 6px; background: var(--surface-2); color: var(--text); }
.hp-text .ui { display: inline-block; padding: 0 8px; border-radius: 6px; background: var(--primary-soft); color: var(--primary); font-weight: 600; font-size: 14px; line-height: 1.6; }
.hp-text .steps { counter-reset: s; list-style: none; padding: 0; }
.hp-text .steps li { counter-increment: s; position: relative; padding: 4px 0 4px 38px; }
.hp-text .steps li::before { content: counter(s); position: absolute; left: 0; top: 5px; width: 26px; height: 26px; border-radius: 50%; display: grid; place-items: center; font-size: 13px; font-weight: 700; color: var(--primary-ink); background: var(--primary); }
.hp-text table { width: 100%; margin: 4px 0 12px; border-collapse: collapse; font-size: 14px; }
.hp-text th, .hp-text td { padding: 8px 12px; border-bottom: 1px solid var(--border); text-align: left; vertical-align: top; }
.hp-text th { color: var(--muted); font-weight: 600; font-size: 13px; background: var(--surface-2); }
.hp-text .tip, .hp-text .note { margin: 10px 0 4px; padding: 10px 14px; border-radius: 12px; font-size: 14px; }
.hp-text .tip { background: var(--success-soft); }
.hp-text .tip b { color: var(--success); margin-right: 4px; }
.hp-text .note { background: var(--warning-soft); }
.hp-text .note b { color: var(--warning); margin-right: 4px; }
.hp-main mark { background: color-mix(in srgb, var(--amber) 40%, transparent); color: inherit; border-radius: 3px; padding: 0 1px; }

.hp-foot { padding: 28px 24px 40px; text-align: center; color: var(--faint); font-size: 13px; border-top: 1px solid var(--border); }

@media (max-width: 900px) {
  .hp-body { grid-template-columns: minmax(0, 1fr); gap: 18px; }
  .hp-toc { position: static; max-height: 260px; padding: 12px; border: 1px solid var(--border); border-radius: 14px; background: var(--surface); }
}
@media (max-width: 600px) {
  .hp-top { padding: 0 16px; gap: 10px; }
  .hp-top-title { display: none; }
  .hp-hero { padding: 36px 16px 24px; }
  .hp-search { height: 54px; }
  .hp-search kbd { display: none; }
  .hp-body { padding: 16px 16px 60px; }
  .hp-topic { padding: 16px; }
  .hp-text table { display: block; overflow-x: auto; }
}
@media print {
  .hp-top, .hp-hero, .hp-toc, .hp-copy, .hp-foot { display: none; }
  .hp-body { display: block; padding: 0; }
  .hp-topic { break-inside: avoid; border: 0; padding: 0 0 12px; }
}

/* screenshots in topics */
.hp-fig { margin: 12px 0 14px; }
.hp-fig img { display: block; width: 100%; height: auto; border: 1px solid var(--border); border-radius: 12px; box-shadow: var(--shadow-sm); cursor: zoom-in; background: #fff; }
.hp-fig figcaption { margin-top: 6px; font-size: 12.5px; color: var(--muted); }
.hp-zoom { position: fixed; inset: 0; z-index: 100; display: grid; place-items: center; padding: 24px; background: rgba(8, 12, 23, .88); cursor: zoom-out; animation: pk-in .15s ease; }
.hp-zoom img { max-width: 100%; max-height: 100%; border-radius: 10px; box-shadow: 0 20px 60px rgba(0,0,0,.5); }
.hp-quick { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 12px; margin: 10px 0; }
.hp-quick a { display: grid; gap: 6px; padding: 10px; border: 1px solid var(--border); border-radius: 12px; background: var(--surface); color: var(--text); text-decoration: none; }
.hp-quick a:hover { border-color: var(--primary); }
.hp-quick img { width: 100%; height: auto; border-radius: 8px; border: 1px solid var(--border); }
.hp-quick b { font-size: 14px; }
@keyframes pk-in { from { opacity: 0; } }