.page-faq {
  --faq-gap: clamp(22px, 3.4vw, 40px);
  --faq-anchor: calc(var(--strip-h) + 76px);
  color: var(--paper);
  padding-block: clamp(24px, 4.5vw, 56px) clamp(56px, 8vw, 104px);
  background:
    radial-gradient(90% 60% at 92% -10%, rgba(63, 224, 206, 0.14), transparent 62%),
    radial-gradient(70% 50% at 4% 6%, rgba(198, 255, 74, 0.07), transparent 60%),
    linear-gradient(180deg, var(--ink-900) 0%, var(--ink-800) 56%, var(--ink-900) 100%);
  overflow-x: clip;
}

.page-faq .faq-hero {
  display: grid;
  gap: var(--faq-gap);
  margin-bottom: clamp(24px, 4vw, 44px);
}

.page-faq .faq-hero__copy {
  min-width: 0;
}

.page-faq .faq-hero__kicker {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin: 0 0 14px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--aqua);
}

.page-faq .faq-hero__kicker::before {
  content: "";
  display: block;
  width: 28px;
  height: 2px;
  background: var(--lime);
}

.page-faq .faq-hero h1 {
  margin: 0 0 16px;
  font-family: var(--font-cond);
  font-weight: 700;
  font-size: clamp(30px, 6.4vw, 56px);
  line-height: 1.14;
  letter-spacing: 0.02em;
  color: var(--paper);
}

.page-faq .faq-hero h1 span {
  display: block;
  color: var(--lime);
}

.page-faq .faq-hero__chips {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 20px 0 0;
  padding: 0;
  list-style: none;
}

.page-faq .faq-chip {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 13px;
  font-size: 13px;
  line-height: 1.4;
  color: var(--mist);
  border: 1px solid var(--line);
  border-radius: 999px;
  background: rgba(18, 48, 57, 0.55);
}

.page-faq .faq-hero__art {
  position: relative;
  margin: 0;
  border: 1px solid var(--line);
  border-radius: 84px var(--radius-l) 84px var(--radius-l);
  overflow: hidden;
}

.page-faq .faq-hero__art img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 1 / 1;
  object-fit: cover;
}

.page-faq .faq-hero__art::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background:
    repeating-linear-gradient(90deg, transparent 0 38px, rgba(167, 192, 198, 0.09) 38px 39px),
    linear-gradient(160deg, rgba(6, 23, 34, 0.12), rgba(6, 23, 34, 0.66) 76%);
}

.page-faq .faq-jump {
  display: flex;
  gap: 10px;
  margin-bottom: clamp(24px, 4vw, 44px);
  padding: 12px 2px;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  overflow-x: auto;
  scrollbar-width: thin;
}

.page-faq .faq-jump__link {
  flex: 0 0 auto;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 14px;
  font-size: 14px;
  color: var(--mist);
  text-decoration: none;
  white-space: nowrap;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: rgba(18, 48, 57, 0.42);
  transition: color 220ms var(--ease), border-color 220ms var(--ease), background 220ms var(--ease);
}

.page-faq .faq-jump__link span {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--aqua);
}

.page-faq .faq-jump__link:hover,
.page-faq .faq-jump__link:focus-visible {
  color: var(--paper);
  border-color: var(--lime);
  background: rgba(198, 255, 74, 0.08);
  outline: none;
}

.page-faq .faq-jump__link:focus-visible {
  box-shadow: 0 0 0 2px var(--lime);
}

.page-faq .faq-layout {
  display: grid;
  gap: clamp(24px, 3.4vw, 32px);
}

.page-faq .faq-index {
  display: none;
}

.page-faq .faq-index__list {
  display: grid;
  gap: 6px;
  margin: 12px 0 0;
  padding: 0 0 0 14px;
  list-style: none;
}

.page-faq .faq-index__group > a {
  display: flex;
  align-items: baseline;
  gap: 9px;
  padding: 10px 0 6px;
  font-family: var(--font-cond);
  font-size: 15px;
  letter-spacing: 0.06em;
  color: var(--paper);
  text-decoration: none;
  border-top: 1px solid var(--line);
  transition: color 200ms var(--ease);
}

.page-faq .faq-index__no {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--mist);
}

.page-faq .faq-index__sub {
  display: grid;
  gap: 2px;
  margin: 0 0 10px;
  padding: 0;
  list-style: none;
}

.page-faq .faq-index__sub a {
  display: block;
  padding: 4px 0;
  font-size: 13px;
  line-height: 1.5;
  color: var(--mist);
  text-decoration: none;
  transition: color 200ms var(--ease), padding-left 200ms var(--ease);
}

.page-faq .faq-index__sub a:hover,
.page-faq .faq-index__sub a:focus-visible {
  color: var(--paper);
  padding-left: 6px;
  outline: none;
}

.page-faq .faq-body {
  min-width: 0;
}

.page-faq .faq-sec {
  margin-bottom: clamp(34px, 5vw, 62px);
  scroll-margin-top: var(--faq-anchor);
}

.page-faq .faq-sec__head {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 6px 14px;
  align-items: baseline;
  margin-bottom: 18px;
  padding-bottom: 14px;
  border-bottom: 1px solid var(--line);
}

.page-faq .faq-sec__num {
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.1em;
  color: var(--lime);
}

.page-faq .faq-sec__title {
  margin: 0;
  font-family: var(--font-cond);
  font-weight: 700;
  font-size: clamp(22px, 3.2vw, 30px);
  line-height: 1.25;
  letter-spacing: 0.04em;
  color: var(--paper);
}

.page-faq .faq-sec__lede {
  grid-column: 2;
  margin: 0;
  font-size: 15px;
  line-height: 1.7;
  color: var(--mist);
}

.page-faq .faq-figure {
  margin: 0 0 20px;
  border: 1px solid var(--line);
  border-radius: var(--radius-l);
  overflow: hidden;
}

.page-faq .faq-figure img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 12 / 7;
  object-fit: cover;
}

.page-faq .faq-sec__list {
  display: grid;
  gap: 12px;
}

.page-faq .qa {
  padding: 0 clamp(14px, 2.4vw, 22px);
  border: 1px solid var(--line);
  border-left: 3px solid var(--line);
  border-radius: var(--radius-m);
  background: linear-gradient(150deg, rgba(18, 48, 57, 0.92), rgba(10, 42, 38, 0.8));
  scroll-margin-top: var(--faq-anchor);
  transition: border-color 220ms var(--ease), background 220ms var(--ease);
}

.page-faq .qa:hover {
  border-color: rgba(63, 224, 206, 0.55);
  border-left-color: rgba(63, 224, 206, 0.55);
}

.page-faq .qa:target {
  border-color: var(--lime);
  border-left-color: var(--lime);
  background: linear-gradient(150deg, rgba(30, 74, 82, 0.94), rgba(10, 42, 38, 0.92));
}

.page-faq .qa__head {
  margin: 0;
}

.page-faq .qa__q {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  align-items: baseline;
  gap: 12px;
  padding: 18px 0;
  font-size: 17px;
  font-weight: 600;
  line-height: 1.55;
  color: var(--paper);
  text-decoration: none;
}

.page-faq .qa__q:focus-visible {
  outline: none;
  box-shadow: 0 0 0 2px var(--lime);
  border-radius: var(--radius-s);
}

.page-faq .qa__num {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--aqua);
}

.page-faq .qa__mark {
  font-family: var(--font-mono);
  font-size: 18px;
  line-height: 1;
  color: var(--lime);
}

.page-faq .qa__mark::before {
  content: "+";
}

.page-faq .qa:target .qa__mark::before {
  content: "\2212";
}

.page-faq .qa__body {
  display: grid;
  grid-template-rows: 0fr;
  transition: grid-template-rows 280ms var(--ease);
}

.page-faq .qa__body > div {
  overflow: hidden;
}

.page-faq .qa:target .qa__body {
  grid-template-rows: 1fr;
}

.page-faq .qa__body p {
  max-width: 34em;
  margin: 0 0 20px;
  padding-top: 2px;
  font-size: 16px;
  line-height: 1.78;
  color: var(--mist);
}

.page-faq .qa__body a {
  color: var(--aqua);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.page-faq .qa__body a:hover,
.page-faq .qa__body a:focus-visible {
  color: var(--lime);
}

.page-faq .faq-tail {
  position: relative;
  padding: clamp(20px, 3.4vw, 30px);
  border: 1px solid var(--line);
  border-radius: var(--radius-l);
  background:
    linear-gradient(115deg, rgba(255, 162, 58, 0.14), transparent 58%),
    var(--ink-700);
}

.page-faq .faq-tail__text {
  max-width: 34em;
  margin: 10px 0 18px;
  font-size: 15px;
  line-height: 1.75;
  color: var(--mist);
}

.page-faq:has(#sec-01:target) a[href="#sec-01"],
.page-faq:has(#sec-02:target) a[href="#sec-02"],
.page-faq:has(#sec-03:target) a[href="#sec-03"],
.page-faq:has(#sec-04:target) a[href="#sec-04"],
.page-faq:has(#sec-05:target) a[href="#sec-05"] {
  color: var(--lime);
}

@media (min-width: 720px) {
  .page-faq .faq-hero {
    grid-template-columns: minmax(0, 1.2fr) minmax(0, 0.8fr);
    align-items: center;
    gap: clamp(28px, 4vw, 52px);
  }

  .page-faq .faq-jump {
    flex-wrap: wrap;
    overflow-x: visible;
  }
}

@media (min-width: 960px) {
  .page-faq .faq-layout {
    grid-template-columns: 264px minmax(0, 1fr);
    gap: clamp(32px, 4vw, 56px);
    align-items: start;
  }

  .page-faq .faq-index {
    display: block;
    position: sticky;
    top: calc(var(--strip-h) + 28px);
    max-height: calc(100vh - var(--strip-h) - 56px);
    overflow-y: auto;
    padding-right: 8px;
    scrollbar-width: thin;
  }

  .page-faq .qa__q {
    font-size: 18px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .qa__body,
  .page-faq .qa,
  .page-faq .faq-jump__link,
  .page-faq .faq-index__sub a {
    transition: none;
  }
}