/* Reference lock: the current Hangcha Engineering Bay instruction page.
   White canvas, Golos Text, ruled sections, red actions; native full document
   content and locally hosted illustrations remain the evidence. */
.hc-manual-reader { min-width: 0; margin-top: 52px; padding-top: 32px; border-top: 2px solid var(--c-ink); scroll-margin-top: 140px; }
.hc-manual-reader *, .hc-manual-reader *::before, .hc-manual-reader *::after { box-sizing: border-box; }
.hc-manual-reader [hidden] { display: none !important; }
.hc-manual-reader-heading { display: flex; align-items: flex-start; justify-content: space-between; gap: 28px; margin-bottom: 32px; }
.hc-manual-reader-heading > div { min-width: 0; }
.hc-manual-reader-heading h2 { margin: 12px 0; color: var(--c-ink); font-size: 34px; line-height: 1.25; font-weight: 600; letter-spacing: -.025em; text-wrap: balance; }
.hc-manual-reader-meta { margin: 0; color: var(--c-ink-3); font-size: 13px; line-height: 1.7; }
.hc-manual-pdf-link { display: inline-flex; align-items: center; justify-content: space-between; gap: 20px; flex-shrink: 0; min-height: 44px; padding: 9px 0; color: var(--c-accent); font-size: 14px; font-weight: 600; line-height: 1.6; text-decoration: none; }
.hc-manual-pdf-link svg { flex: 0 0 18px; }
.hc-manual-pdf-link:hover, .hc-manual-reader-top:hover { text-decoration: underline; }
.hc-manual-reader-layout { display: grid; grid-template-columns: 260px minmax(0, 1fr); align-items: start; gap: 68px; }
.hc-manual-reader-layout--plain { display: block; max-width: 920px; }
.hc-manual-reader-sidebar { position: sticky; top: 138px; min-width: 0; align-self: start; }
.hc-manual-reader-toc { min-width: 0; border-top: 1px solid var(--c-line); border-bottom: 1px solid var(--c-line); }
.hc-manual-reader-toc summary { display: flex; align-items: center; justify-content: space-between; gap: 16px; min-height: 48px; color: var(--c-ink); font-size: 15px; line-height: 1.6; font-weight: 600; list-style: none; cursor: pointer; }
.hc-manual-reader-toc summary::-webkit-details-marker { display: none; }
.hc-manual-reader-toc summary > :last-child { flex-shrink: 0; }
.hc-manual-reader-toc[open] summary > :last-child { transform: rotate(180deg); }
.hc-manual-outline-filter { padding: 4px 0 12px; }
.hc-manual-outline-filter label { display: block; margin-bottom: 7px; color: var(--c-ink-3); font-size: 12px; }
.hc-manual-outline-filter input { display: block; width: 100%; min-width: 0; min-height: 44px; padding: 10px 11px; border: 1px solid var(--c-line); border-radius: 6px; color: var(--c-ink); background: var(--c-bg); font: inherit; font-size: 14px; }
.hc-manual-outline-filter input::placeholder { color: var(--c-ink-3); opacity: 1; }
.hc-manual-outline-count { min-height: 20px; margin: 7px 0 0; color: var(--c-ink-3); font-size: 11px; line-height: 1.6; }
.hc-manual-outline-scroll { max-height: min(52vh, 530px); overflow-y: auto; overscroll-behavior: contain; scrollbar-gutter: stable; padding-right: 6px; }
.hc-manual-outline { margin: 0; padding: 0; list-style: none; }
.hc-manual-outline li { margin: 0; border-top: 1px solid var(--c-line); }
.hc-manual-outline a { display: flex; align-items: center; min-height: 44px; padding: 10px 2px; color: var(--c-ink-2); font-size: 13px; line-height: 1.6; text-decoration: none; overflow-wrap: anywhere; }
.hc-manual-outline [data-level="3"] a { padding-left: 12px; }
.hc-manual-outline [data-level="4"] a, .hc-manual-outline [data-level="5"] a, .hc-manual-outline [data-level="6"] a { padding-left: 22px; }
.hc-manual-outline a:hover, .hc-manual-outline a[aria-current="location"] { color: var(--c-accent); }
.hc-manual-outline a[aria-current="location"] { font-weight: 600; }
.hc-manual-outline-empty { margin: 0; padding: 16px 0 20px; color: var(--c-ink-2); font-size: 13px; line-height: 1.65; }
.hc-manual-find-hint { margin: 14px 0 0; color: var(--c-ink-3); font-size: 12px; line-height: 1.7; }
.hc-manual-find-hint kbd { display: inline; padding: 0; color: var(--c-ink-2); background: none; border: 0; font: inherit; white-space: nowrap; }
.hc-manual-reader-top { display: inline-flex; align-items: center; gap: 20px; min-height: 44px; margin-top: 6px; color: var(--c-accent); font-size: 13px; line-height: 1.6; text-decoration: none; }
.hc-manual-body { min-width: 0; max-width: 100%; color: var(--c-ink-2); font-size: 16px; line-height: 1.75; overflow-wrap: break-word; }
.hc-manual-body > * { max-width: 100%; }
.hc-manual-body :where(h1,h2,h3,h4,h5,h6,section,[id]) { scroll-margin-top: 145px; }
.hc-manual-body :where(h1,h2,h3,h4,h5,h6) { color: var(--c-ink); font-weight: 600; text-wrap: balance; overflow-wrap: anywhere; }
.hc-manual-body h1, .hc-manual-body h2 { margin: 40px 0 20px; font-size: 28px; line-height: 1.3; letter-spacing: -.02em; }
.hc-manual-body h3 { margin: 32px 0 16px; font-size: 23px; line-height: 1.4; letter-spacing: -.015em; }
.hc-manual-body h4 { margin: 26px 0 14px; font-size: 19px; line-height: 1.5; }
.hc-manual-body h5, .hc-manual-body h6 { margin: 24px 0 12px; font-size: 16px; line-height: 1.6; }
.hc-manual-body > :first-child { margin-top: 0; }
.hc-manual-body .hc-manual-section { margin: 0; padding: 0; }
.hc-manual-body .hc-manual-text { margin: 0 0 14px; }
.hc-manual-body .hc-manual-toc-columns { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 16px 28px; }
.hc-manual-body .hc-manual-toc-list { margin-top: 0; }
.hc-manual-body .hc-manual-toc-link { display: inline-flex; align-items: center; min-height: 44px; }
.hc-manual-body .hc-manual-image-section { margin: 20px 0 24px; }
.hc-manual-body .hc-manual-table-section { margin: 24px 0; }
.hc-manual-body p { margin: 0 0 18px; }
.hc-manual-body :where(ul,ol) { margin: 16px 0 22px; padding-left: 25px; }
.hc-manual-body li { margin-bottom: 8px; padding-left: 3px; }
.hc-manual-body li::marker { color: var(--c-ink-3); }
.hc-manual-body :where(figure,figcaption) { margin-left: 0; margin-right: 0; }
.hc-manual-body figure { margin-top: 24px; margin-bottom: 26px; }
.hc-manual-body figcaption { margin-top: 9px; color: var(--c-ink-3); font-size: 12px; line-height: 1.7; }
.hc-manual-body img { display: block; max-width: 100%; height: auto; margin: 18px auto; object-fit: contain; }
.hc-manual-body figure img { margin-top: 0; margin-bottom: 0; }
.hc-manual-body a { color: var(--c-accent); text-underline-offset: 3px; overflow-wrap: anywhere; }
.hc-manual-body a:has(img) { display: block; max-width: 100%; }
.hc-manual-table-scroll { display: block; width: 100%; max-width: 100%; margin: 24px 0; overflow-x: auto; overscroll-behavior-inline: contain; scrollbar-gutter: stable; border: 1px solid var(--c-line); border-radius: 0; }
.hc-manual-body table { width: 100%; max-width: none; margin: 0; border-collapse: collapse; table-layout: auto; color: var(--c-ink-2); font-size: 14px; line-height: 1.65; }
.hc-manual-body :where(th,td) { min-width: 100px; max-width: 34rem; padding: 11px 12px; border: 1px solid var(--c-line); vertical-align: top; text-align: left; white-space: normal; overflow-wrap: anywhere; }
.hc-manual-body th { color: var(--c-ink); background: var(--c-bg-soft); font-weight: 600; }
.hc-manual-body :where(th,td) :last-child { margin-bottom: 0; }
.hc-manual-body caption { padding: 12px; color: var(--c-ink); background: var(--c-bg-soft); text-align: left; font-weight: 600; }
.hc-manual-body .hc-manual-table-scroll > table { border-style: hidden; }
.hc-manual-body :is(.hc-manual-alert,.hc-manual-note,.hc-manual-notice,.hc-manual-warning,.manual-notice,.warning) { margin: 24px 0; padding: 18px 20px; border-left: 3px solid var(--c-accent); color: var(--c-ink); background: var(--c-bg-soft); }
.hc-manual-body :is(.hc-manual-alert,.hc-manual-note,.hc-manual-notice,.hc-manual-warning,.manual-notice,.warning) > :last-child { margin-bottom: 0; }
.hc-manual-page { margin-bottom: 42px; padding-top: 28px; border-top: 1px solid var(--c-line); }
.hc-manual-page:first-child { padding-top: 0; border-top: 0; }
.hc-manual-page > h3:first-child { margin-top: 0; color: var(--c-ink-3); font-size: 13px; letter-spacing: .04em; }
.hc-manual-page-text { max-width: 100%; margin: 16px 0 20px; color: inherit; background: none; border: 0; font-family: inherit; font-size: 15px; line-height: 1.75; white-space: pre-wrap; overflow-wrap: anywhere; tab-size: 4; }
.hc-manual-page-original { margin-top: 20px; }
.hc-manual-page-original summary { display: flex; align-items: center; min-height: 44px; color: var(--c-accent); font-size: 13px; line-height: 1.6; cursor: pointer; }
.hc-manual-page-original img { width: 100%; height: auto; margin-top: 16px; border: 1px solid var(--c-line); }
.hc-manual-reader :where(a,input,summary,[tabindex]):focus-visible { outline: 2px solid var(--c-focus); outline-offset: 4px; }
@media (max-width: 1023px) {
  .hc-manual-reader-layout { grid-template-columns: 220px minmax(0, 1fr); gap: 36px; }
  .hc-manual-reader-heading h2 { font-size: 30px; }
}
@media (max-width: 767px) {
  .hc-manual-reader { margin-top: 36px; padding-top: 26px; scroll-margin-top: 108px; }
  .hc-manual-reader-heading { flex-direction: column; gap: 12px; margin-bottom: 24px; }
  .hc-manual-reader-heading h2 { margin: 10px 0; font-size: 27px; }
  .hc-manual-reader-meta { font-size: 12px; }
  .hc-manual-pdf-link { padding-top: 4px; padding-bottom: 4px; }
  .hc-manual-reader-layout { grid-template-columns: minmax(0, 1fr); gap: 30px; }
  .hc-manual-reader-sidebar { position: static; }
  .hc-manual-outline-scroll { max-height: 330px; }
  .hc-manual-outline-filter input { font-size: 16px; }
  .hc-manual-find-hint { margin-top: 12px; }
  .hc-manual-find-keyboard { display: none; }
  .hc-manual-body { font-size: 15px; line-height: 1.8; }
  .hc-manual-body :where(h1,h2,h3,h4,h5,h6,section,[id]) { scroll-margin-top: 108px; }
  .hc-manual-body h1, .hc-manual-body h2 { margin-top: 32px; font-size: 25px; }
  .hc-manual-body h3 { margin-top: 27px; font-size: 21px; }
  .hc-manual-body h4 { font-size: 18px; }
  .hc-manual-body .hc-manual-toc-columns { grid-template-columns: minmax(0, 1fr); gap: 0; }
  .hc-manual-body :where(th,td) { min-width: 96px; padding: 9px 10px; font-size: 13px; }
  .hc-manual-body :is(.hc-manual-alert,.hc-manual-note,.hc-manual-notice,.hc-manual-warning,.manual-notice,.warning) { padding: 16px; }
  .hc-manual-page-text { font-size: 14px; }
}
@media print {
  .hc-manual-reader-sidebar, .hc-manual-pdf-link { display: none; }
  .hc-manual-reader { border-top: 1px solid #000; margin-top: 24px; }
  .hc-manual-reader-layout { display: block; }
  .hc-manual-body { color: #000; font-size: 10pt; line-height: 1.5; }
  .hc-manual-table-scroll { overflow: visible; border: 0; }
  .hc-manual-body table { width: 100%; font-size: 8pt; }
  .hc-manual-body :where(th,td) { min-width: 0; padding: 4px; }
  .hc-manual-body :where(h1,h2,h3,h4,h5,h6) { break-after: avoid; }
  .hc-manual-body figure, .hc-manual-page-original { break-inside: avoid; }
}