.page-faq {
  --faq-wash: rgba(28, 60, 46, .55);
  --faq-tick: rgba(53, 224, 200, .55);
  background: var(--field);
  color: var(--paper);
}

.page-faq .crumbs {
  max-width: var(--shell);
  margin: 0 auto;
  padding: 24px var(--gutter) 0;
  font-size: 12px;
  letter-spacing: .04em;
  color: var(--note);
  font-family: var(--font-mono);
}

.page-faq .crumbs a {
  color: var(--ink-soft);
  text-decoration: none;
  border-bottom: 1px solid var(--line-strong);
}

.page-faq .crumbs a:hover {
  color: var(--signal);
  border-color: var(--signal);
}

.page-faq .crumbs span[aria-current] {
  color: var(--flare);
}

/* ---------- head ---------- */

.page-faq .faq-head {
  padding-top: 40px;
  padding-bottom: 56px;
  display: grid;
  gap: 20px;
  max-width: var(--shell);
}

.page-faq .faq-head__eyebrow {
  font-size: 12px;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--signal);
  margin: 0;
}

.page-faq .faq-head h1 {
  max-width: 20ch;
  margin: 0;
}

.page-faq .faq-head .lede {
  max-width: 42ch;
  margin: 0;
}

.page-faq .faq-head__meta {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px 24px;
  margin: 20px 0 0;
  padding-top: 20px;
  border-top: 1px solid var(--line);
}

.page-faq .faq-head__meta > div {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.page-faq .faq-head__meta dt {
  font-size: 11px;
  letter-spacing: .1em;
  color: var(--note);
  text-transform: uppercase;
}

.page-faq .faq-head__meta dd {
  margin: 0;
  font-size: 20px;
  color: var(--paper);
  letter-spacing: -.01em;
}

/* ---------- section head ---------- */

.page-faq .faq-sec-head {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-end;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 32px;
}

.page-faq .faq-sec-head .section-heading {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 12px;
  margin: 0;
  padding-top: 18px;
  flex: 1 1 320px;
}

.page-faq .chapter-num {
  font-size: 13px;
  color: var(--flare);
  letter-spacing: .1em;
}

.page-faq .chapter-rail {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .28em;
  color: var(--note);
  writing-mode: vertical-rl;
  text-orientation: mixed;
  align-self: flex-start;
  height: 84px;
}

/* ---------- split layout ---------- */

.page-faq .faq-split {
  display: grid;
  gap: 32px;
}

.page-faq .faq-split__main {
  display: grid;
  gap: 20px;
}

/* ---------- q&a rows ---------- */

.page-faq .faq-q {
  border: 1px solid var(--line);
  border-left: 3px solid var(--line-strong);
  border-radius: var(--radius);
  background: var(--faq-wash);
  transition: border-color .3s var(--ease), background .3s var(--ease);
}

.page-faq .faq-q[open] {
  border-left-color: var(--flare);
  background: var(--turf);
}

.page-faq .faq-q summary {
  display: flex;
  align-items: baseline;
  gap: 12px;
  padding: 16px 18px;
  cursor: pointer;
  list-style: none;
  position: relative;
}

.page-faq .faq-q summary::-webkit-details-marker {
  display: none;
}

.page-faq .faq-q__num {
  font-size: 12px;
  color: var(--signal);
  letter-spacing: .08em;
  flex: 0 0 auto;
}

.page-faq .faq-q__text {
  flex: 1 1 auto;
  font-size: 16px;
  line-height: 1.5;
  color: var(--paper);
  font-weight: 500;
}

.page-faq .faq-q__mark {
  flex: 0 0 auto;
  width: 12px;
  height: 12px;
  position: relative;
  align-self: center;
}

.page-faq .faq-q__mark::before,
.page-faq .faq-q__mark::after {
  content: "";
  position: absolute;
  inset: 50% 0 auto 0;
  height: 1px;
  background: var(--silver);
  transition: transform .3s var(--ease), background .3s var(--ease);
}

.page-faq .faq-q__mark::after {
  transform: rotate(90deg);
}

.page-faq .faq-q[open] .faq-q__mark::after {
  transform: rotate(0deg);
}

.page-faq .faq-q[open] .faq-q__mark::before,
.page-faq .faq-q[open] .faq-q__mark::after {
  background: var(--flare);
}

.page-faq .faq-q__body {
  padding: 0 18px 20px 42px;
  display: grid;
  gap: 10px;
  border-top: 1px solid var(--line);
  padding-top: 14px;
}

.page-faq .faq-q__lead {
  margin: 0;
  font-size: 15px;
  line-height: 1.7;
  color: var(--signal);
}

.page-faq .faq-q__body p {
  margin: 0;
  font-size: 15px;
  line-height: 1.75;
  color: var(--ink-soft);
  max-width: 62ch;
}

/* ---------- example block ---------- */

.page-faq .faq-example {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 18px;
  background: var(--ink);
  display: grid;
  gap: 12px;
}

.page-faq .faq-example__cap {
  margin: 0;
  font-size: 11px;
  letter-spacing: .06em;
  color: var(--note);
}

.page-faq .faq-example__row {
  display: flex;
  align-items: baseline;
  gap: 10px;
  flex-wrap: wrap;
  margin: 0;
  padding: 10px 0;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.page-faq .faq-example__key {
  font-size: 12px;
  color: var(--note);
  letter-spacing: .06em;
}

.page-faq .faq-example__val {
  font-size: 28px;
  letter-spacing: -.02em;
}

.page-faq .faq-example__val--left {
  color: var(--flare);
}

.page-faq .faq-example__val--right {
  color: var(--signal);
}

.page-faq .faq-example__sep {
  font-size: 24px;
  color: var(--silver);
}

.page-faq .faq-example__legend {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 6px;
  font-size: 13px;
  color: var(--ink-soft);
}

.page-faq .faq-example__legend li {
  display: flex;
  align-items: center;
  gap: 8px;
}

.page-faq .faq-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  flex: 0 0 auto;
}

.page-faq .faq-dot--left {
  background: var(--flare);
}

.page-faq .faq-dot--right {
  background: var(--signal);
}

/* ---------- figure ---------- */

.page-faq .figure {
  margin: 0;
  display: grid;
  gap: 10px;
}

.page-faq .figure__frame {
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--turf);
}

.page-faq .figure__frame img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
}

/* ---------- legend list ---------- */

.page-faq .faq-legend__intro {
  margin: 0 0 16px;
  font-size: 15px;
  line-height: 1.75;
  color: var(--ink-soft);
  max-width: 56ch;
}

.page-faq .faq-legend {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 0;
  border-top: 1px solid var(--line);
}

.page-faq .faq-legend__item {
  display: grid;
  grid-template-columns: 14px 1fr;
  grid-template-areas:
    "swatch name"
    "swatch desc";
  gap: 2px 14px;
  padding: 14px 0;
  border-bottom: 1px solid var(--line);
  transition: background .25s var(--ease);
}

.page-faq .faq-legend__item:hover {
  background: rgba(53, 224, 200, .05);
}

.page-faq .faq-legend__swatch {
  grid-area: swatch;
  width: 12px;
  height: 100%;
  min-height: 34px;
  border-radius: 1px;
  align-self: stretch;
}

.page-faq .faq-legend__swatch--1 { background: #35E0C8; }
.page-faq .faq-legend__swatch--2 { background: #FF4B1F; }
.page-faq .faq-legend__swatch--3 { background: #FF9147; }
.page-faq .faq-legend__swatch--4 { background: #C7CED0; }
.page-faq .faq-legend__swatch--5 { background: #3B2E4A; }
.page-faq .faq-legend__swatch--6 { background: #7E8F86; }

.page-faq .faq-legend__name {
  grid-area: name;
  font-size: 15px;
  font-weight: 600;
  color: var(--paper);
  letter-spacing: .02em;
}

.page-faq .faq-legend__desc {
  grid-area: desc;
  font-size: 13px;
  line-height: 1.7;
  color: var(--ink-dim);
  max-width: 46ch;
}

/* ---------- cycle table ---------- */

.page-faq .faq-cycle {
  width: 100%;
}

.page-faq .faq-cycle__note {
  margin: 20px 0 0;
  font-size: 14px;
  line-height: 1.75;
  color: var(--ink-soft);
  max-width: 62ch;
}

/* ---------- citation ---------- */

.page-faq .faq-cite {
  display: grid;
  gap: 18px;
}

.page-faq .faq-cite__hint {
  margin: 0;
  font-size: 15px;
  line-height: 1.7;
  color: var(--ink-soft);
  max-width: 56ch;
}

.page-faq .faq-cite__block {
  margin: 0;
  padding: 18px 20px;
  background: var(--ink);
  border: 1px solid var(--line-strong);
  border-left: 3px solid var(--ember);
  border-radius: var(--radius);
  color: var(--paper);
  font-size: 13px;
  line-height: 2;
  white-space: pre-wrap;
  overflow-x: auto;
  cursor: text;
}

.page-faq .faq-cite__block:focus-visible {
  outline: 2px solid var(--signal);
  outline-offset: 2px;
}

.page-faq .faq-cite__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 12px;
}

.page-faq .faq-cite__list li {
  position: relative;
  padding-left: 20px;
  font-size: 15px;
  line-height: 1.75;
  color: var(--ink-soft);
  max-width: 62ch;
}

.page-faq .faq-cite__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .85em;
  width: 10px;
  height: 1px;
  background: var(--ember);
}

/* ---------- errata ---------- */

.page-faq .faq-errata__intro {
  margin: 0 0 8px;
  font-size: 15px;
  line-height: 1.7;
  color: var(--ink-soft);
}

.page-faq .faq-check {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 0;
  border-top: 1px solid var(--line);
}

.page-faq .faq-check__item {
  display: grid;
  grid-template-columns: 42px 1fr;
  gap: 14px;
  align-items: baseline;
  padding: 16px 0;
  border-bottom: 1px solid var(--line);
}

.page-faq .faq-check__mark {
  font-size: 12px;
  letter-spacing: .08em;
  color: var(--flare);
}

.page-faq .faq-check__text {
  font-size: 15px;
  line-height: 1.7;
  color: var(--ink-soft);
}

.page-faq .faq-errata__aside {
  align-self: start;
  display: grid;
  gap: 12px;
  border-left: 3px solid var(--signal);
}

.page-faq .faq-errata__aside p {
  margin: 0;
  font-size: 14px;
  line-height: 1.75;
  color: var(--ink-soft);
}

.page-faq .faq-errata__aside a {
  color: var(--signal);
  text-decoration: none;
  border-bottom: 1px solid var(--faq-tick);
}

.page-faq .faq-errata__aside a:hover {
  color: var(--flare);
  border-color: var(--flare);
}

/* ---------- routes ---------- */

.page-faq .faq-routes {
  align-items: stretch;
}

.page-faq .faq-route {
  height: 100%;
  display: grid;
  gap: 12px;
  align-content: start;
}

.page-faq .faq-route__tag {
  margin: 0;
  font-size: 11px;
  letter-spacing: .16em;
  color: var(--signal);
}

.page-faq .faq-route p {
  margin: 0;
  font-size: 14px;
  line-height: 1.75;
  color: var(--ink-soft);
}

.page-faq .faq-route .btn {
  justify-self: start;
  margin-top: 4px;
}

.page-faq .faq-routes__tail {
  margin: 28px 0 0;
  padding-top: 20px;
  border-top: 1px solid var(--line);
  font-size: 14px;
  line-height: 1.8;
  color: var(--ink-dim);
  max-width: 68ch;
}

.page-faq .faq-routes__tail a {
  color: var(--signal);
  text-decoration: none;
  border-bottom: 1px solid var(--faq-tick);
}

.page-faq .faq-routes__tail a:hover {
  color: var(--ember);
  border-color: var(--ember);
}

/* ---------- responsive ---------- */

@media (min-width: 720px) {
  .page-faq .faq-head {
    grid-template-columns: minmax(0, 1fr);
    padding-top: 64px;
    padding-bottom: 72px;
  }

  .page-faq .faq-head__meta {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .page-faq .faq-q summary {
    padding: 18px 22px;
  }

  .page-faq .faq-q__body {
    padding: 16px 22px 22px 56px;
  }

  .page-faq .faq-q__text {
    font-size: 17px;
  }

  .page-faq .faq-example {
    padding: 22px 24px;
  }

  .page-faq .faq-example__val {
    font-size: 34px;
  }
}

@media (min-width: 1024px) {
  .page-faq .faq-split {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    align-items: start;
  }

  .page-faq .faq-split--reverse {
    grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
  }

  .page-faq .faq-split--reverse .faq-split__aside {
    order: -1;
  }

  .page-faq .faq-split__aside {
    position: sticky;
    top: 32px;
  }

  .page-faq .faq-sec-head {
    gap: 32px;
    margin-bottom: 44px;
  }

  .page-faq .chapter-rail {
    height: 110px;
  }

  .page-faq .faq-head h1 {
    max-width: 24ch;
  }
}
</｜｜DSML｜｜ parameter>
</｜｜DSML｜｜ invoke>
</｜｜DSML｜｜ calls>