.hc-page {
  display: grid;
  grid-template-columns: 260px minmax(0, 1fr);
  gap: clamp(1.5rem, 1rem + 3vw, 3.5rem);
  padding-top: 2rem;
  align-items: start;
}

.hc-page--toc {
  grid-template-columns: 260px minmax(0, 1fr) 220px;
}

.hc-tree {
  position: sticky;
  top: calc(var(--header-h) + 1.5rem);
  max-height: calc(100vh - var(--header-h) - 3rem);
  overflow: auto;
  font-size: 0.93rem;
  padding-right: 0.5rem;
}

.hc-tree ul {
  list-style: none;
  margin: 0;
  padding: 0;
}

.hc-tree > ul > li + li {
  margin-top: 0.35rem;
}

.hc-tree a {
  display: block;
  padding: 0.4rem 0.7rem;
  border-radius: var(--r-sm);
  color: var(--ink-2);
}

.hc-tree a:hover {
  background: var(--blue-50);
  text-decoration: none;
}

.hc-tree a[aria-current='page'] {
  background: var(--blue-100);
  color: var(--blue-deep);
  font-weight: 700;
}

.hc-tree__cat > a {
  color: var(--ink);
  font-weight: 700;
}

.hc-tree__sub {
  margin-left: 0.7rem;
  padding-left: 0.5rem;
  border-left: 1px solid var(--line);
}

.hc-tree__group {
  padding: 0.5rem 0.7rem 0.15rem;
  font-weight: 700;
  font-size: 0.82rem;
  color: var(--ink-3);
}

.hc-page__head {
  margin-top: 1rem;
}

.hc-page__head h1 {
  font-size: var(--fs-h1);
}

.hc-page__head p {
  margin-top: 0.75rem;
  font-size: var(--fs-lead);
  max-width: 62ch;
}

.hc-meta {
  margin-top: 0.9rem;
  font-size: 0.88rem;
  color: var(--ink-3);
}

.hc-toc {
  position: sticky;
  top: calc(var(--header-h) + 1.5rem);
  font-size: 0.88rem;
}

.hc-toc h2 {
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--ink-3);
  margin-bottom: 0.75rem;
}

.hc-toc ol {
  list-style: none;
  margin: 0;
  padding: 0;
  border-left: 1px solid var(--line);
}

.hc-toc a {
  display: block;
  padding: 0.3rem 0 0.3rem 0.9rem;
  color: var(--ink-2);
}

.hc-body {
  margin-top: 2rem;
  max-width: 760px;
}

.hc-body > * + * {
  margin-top: 1.1rem;
}

.hc-body h2 {
  margin-top: 2.4rem;
  font-size: var(--fs-h2);
}

.hc-body p,
.hc-body li {
  line-height: 1.75;
}

.hc-body ul {
  padding-left: 1.3rem;
}

.hc-body code {
  padding: 0.12rem 0.4rem;
  border-radius: 6px;
  background: var(--blue-50);
  color: var(--blue-deep);
  font-size: 0.9em;
}

.hc-figure {
  margin-left: 0;
  margin-right: 0;
}

.hc-figure img {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: var(--r);
  box-shadow: var(--shadow-ui);
}

.hc-figure figcaption {
  margin-top: 0.6rem;
  font-size: 0.88rem;
  color: var(--ink-3);
  text-align: center;
}

.hc-steps {
  list-style: none;
  counter-reset: step;
  margin-bottom: 0;
  padding: 0;
  display: grid;
  gap: 0.9rem;
}

.hc-steps li {
  counter-increment: step;
  position: relative;
  padding-left: 3rem;
  min-height: 2rem;
}

.hc-steps li::before {
  content: counter(step);
  position: absolute;
  left: 0;
  top: 0;
  display: grid;
  place-items: center;
  width: 2rem;
  height: 2rem;
  border-radius: 50%;
  background: var(--blue);
  color: #fff;
  font-weight: 800;
  font-size: 0.9rem;
}

.hc-note {
  display: flex;
  gap: 0.85rem;
  padding: 1rem 1.15rem;
  border-radius: var(--r);
  border: 1px solid var(--blue-200);
  background: var(--blue-50);
}

.hc-note svg {
  flex: none;
  margin-top: 0.2rem;
  color: var(--blue);
}

.hc-note--warning {
  border-color: #f3d9a4;
  background: var(--warn-bg);
}

.hc-note--warning svg {
  color: var(--warn);
}

.hc-note--tip {
  border-color: #b8e6d3;
  background: var(--tip-bg);
}

.hc-note--tip svg {
  color: var(--tip);
}

.hc-note p + p {
  margin-top: 0.6rem;
}

.hc-related {
  margin-top: 3rem;
}

.hc-related h2 {
  font-size: var(--fs-h2);
  margin-bottom: 1rem;
}

.hc-group {
  margin-top: 2.25rem;
}

.hc-group h2 {
  font-size: var(--fs-h2);
  margin-bottom: 0.4rem;
}

.hc-group > p {
  margin-bottom: 1rem;
}

@media (max-width: 1100px) {
  .hc-page--toc {
    grid-template-columns: 260px minmax(0, 1fr);
  }

  .hc-toc {
    display: none;
  }
}

@media (max-width: 860px) {
  .hc-page,
  .hc-page--toc {
    grid-template-columns: 1fr;
  }

  .hc-tree {
    position: static;
    max-height: none;
    order: 2;
    border-top: 1px solid var(--line);
    padding-top: 1.5rem;
  }
}