.page-faq {
  --faq-gap: clamp(16px, 2.6vw, 30px);
  --faq-rail-w: 236px;
  --faq-ink-soft: #33506b;
  overflow-x: clip;
  background:
    radial-gradient(1100px 520px at 88% -8%, rgba(38, 224, 255, 0.14), transparent 62%),
    radial-gradient(760px 420px at 4% 24%, rgba(182, 255, 59, 0.07), transparent 60%),
    var(--c-deep);
  color: var(--c-paper);
}

.page-faq .faq-hero {
  padding-block: clamp(20px, 3.6vw, 40px) clamp(28px, 4.5vw, 56px);
}

.page-faq .faq-hero__inner {
  display: grid;
  gap: clamp(24px, 3.5vw, 40px);
  align-items: end;
}

.page-faq .faq-hero__title {
  margin: var(--sp-3) 0 0;
  font-family: var(--f-display);
  font-weight: 800;
  font-size: clamp(2.05rem, 6vw, 4rem);
  line-height: 1.04;
  letter-spacing: -0.02em;
}

.page-faq .faq-hero__accent {
  color: var(--c-cyan);
}

.page-faq .faq-hero__lede {
  margin: var(--sp-4) 0 0;
  max-width: 62ch;
  color: var(--c-mist);
  font-size: var(--fs-body);
}

.page-faq .faq-hero__stats {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: var(--sp-2);
  margin: 0;
  padding: 0;
}

.page-faq .faq-stat {
  position: relative;
  margin: 0;
  padding: var(--sp-4) var(--sp-4) calc(var(--sp-4) + 8px);
  background: var(--c-navy);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 16px), calc(100% - 16px) 100%, 0 100%);
}

.page-faq .faq-stat::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 44px;
  height: 3px;
  background: var(--c-cyan);
}

.page-faq .faq-stat dt {
  font-size: var(--fs-small);
  color: var(--c-mist);
  letter-spacing: 0.06em;
}

.page-faq .faq-stat dd {
  display: flex;
  align-items: baseline;
  gap: 6px;
  margin: var(--sp-2) 0 0;
  font-family: var(--f-mono);
  overflow-wrap: anywhere;
}

.page-faq .faq-stat__num {
  font-size: clamp(1.25rem, 2.4vw, 1.85rem);
  font-weight: 600;
  color: var(--c-paper);
  font-variant-numeric: tabular-nums;
}

.page-faq .faq-stat__unit {
  font-size: var(--fs-small);
  color: var(--c-lime);
}

.page-faq .faq-hot {
  padding-block: clamp(28px, 4vw, 56px);
}

.page-faq .faq-hot__grid {
  display: grid;
  gap: var(--faq-gap);
  margin-top: clamp(20px, 3vw, 32px);
}

.page-faq .faq-hot__list {
  list-style: none;
  display: grid;
  gap: 4px;
  margin: 0;
  padding: 0;
}

.page-faq .faq-hot__link {
  display: flex;
  align-items: center;
  gap: var(--sp-3);
  flex-wrap: wrap;
  padding: 12px 14px;
  text-decoration: none;
  color: var(--c-paper);
  background: rgba(13, 39, 66, 0.62);
  border-left: 2px solid transparent;
  transition:
    background var(--speed) var(--ease),
    border-color var(--speed) var(--ease),
    transform var(--speed) var(--ease);
}

.page-faq .faq-hot__link:hover,
.page-faq .faq-hot__link:focus-visible {
  background: rgba(38, 224, 255, 0.1);
  border-left-color: var(--c-cyan);
  transform: translateX(3px);
}

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

.page-faq .faq-hot__num {
  flex: none;
  font-family: var(--f-mono);
  font-size: var(--fs-small);
  color: var(--c-cyan);
  font-variant-numeric: tabular-nums;
}

.page-faq .faq-hot__q {
  flex: 1 1 170px;
  font-size: 0.95rem;
  line-height: 1.5;
}

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

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

.page-faq .faq-layout {
  display: grid;
  gap: var(--faq-gap);
  padding-block: clamp(24px, 4vw, 56px) clamp(40px, 6vw, 88px);
}

.page-faq .faq-rail {
  display: grid;
  gap: var(--sp-3);
  align-content: start;
  align-self: start;
}

.page-faq .faq-rail__title {
  margin: 0;
  font-family: var(--f-mono);
  font-size: var(--fs-small);
  letter-spacing: 0.16em;
  color: var(--c-lime);
}

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

.page-faq .faq-rail__link {
  display: flex;
  align-items: baseline;
  gap: var(--sp-2);
  padding: 10px 12px;
  text-decoration: none;
  color: var(--c-mist);
  border-left: 2px solid var(--c-line);
  transition:
    color var(--speed) var(--ease),
    border-color var(--speed) var(--ease),
    background var(--speed) var(--ease);
}

.page-faq .faq-rail__link:hover,
.page-faq .faq-rail__link:focus-visible {
  color: var(--c-cyan);
  border-left-color: var(--c-cyan);
  background: rgba(38, 224, 255, 0.08);
}

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

.page-faq .faq-rail__num,
.page-faq .faq-rail__count {
  font-family: var(--f-mono);
  font-size: var(--fs-small);
  color: var(--c-line);
  font-variant-numeric: tabular-nums;
}

.page-faq .faq-rail__count {
  margin-left: auto;
}

.page-faq .faq-rail__note {
  margin: 0;
  padding-top: var(--sp-3);
  border-top: 1px solid var(--c-line);
  font-size: var(--fs-small);
  line-height: 1.7;
  color: var(--c-mist);
}

.page-faq .faq-rail__note a {
  color: var(--c-cyan);
  text-decoration: underline;
  text-underline-offset: 3px;
}

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

.page-faq .faq-block {
  scroll-margin-top: 96px;
  padding-block: clamp(24px, 3.6vw, 44px);
  border-top: 1px solid var(--c-line);
}

.page-faq .faq-block:first-child {
  border-top: 0;
  padding-top: 0;
}

.page-faq .faq-block__head {
  display: grid;
  gap: 6px;
  margin-bottom: var(--sp-5);
}

.page-faq .faq-block__kicker {
  margin: 0;
  font-family: var(--f-mono);
  font-size: var(--fs-small);
  letter-spacing: 0.16em;
  color: var(--c-cyan);
}

.page-faq .faq-block__title {
  display: flex;
  align-items: baseline;
  gap: var(--sp-3);
  flex-wrap: wrap;
  margin: 0;
  font-family: var(--f-display);
  font-weight: 700;
  font-size: clamp(1.35rem, 3vw, 2rem);
  line-height: 1.15;
}

.page-faq .faq-block__num {
  padding: 2px 6px;
  border: 1px solid var(--c-line);
  font-family: var(--f-mono);
  font-size: var(--fs-small);
  font-weight: 600;
  color: var(--c-lime);
}

.page-faq .qa {
  margin-bottom: 10px;
  border: 1px solid var(--c-line);
  background: rgba(13, 39, 66, 0.58);
  transition:
    border-color var(--speed) var(--ease),
    background var(--speed) var(--ease);
}

.page-faq .qa:last-of-type {
  margin-bottom: 0;
}

.page-faq .qa:hover {
  border-color: rgba(38, 224, 255, 0.55);
}

.page-faq .qa[open] {
  border-color: rgba(38, 224, 255, 0.55);
  background: rgba(13, 39, 66, 0.92);
}

.page-faq .qa__q {
  display: flex;
  align-items: baseline;
  gap: var(--sp-3);
  padding: 14px 16px;
  cursor: pointer;
  list-style: none;
  font-size: 0.98rem;
  font-weight: 600;
  line-height: 1.5;
  color: var(--c-paper);
}

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

.page-faq .qa__q::after {
  content: "+";
  margin-left: auto;
  font-family: var(--f-mono);
  font-size: 1.15rem;
  line-height: 1;
  color: var(--c-cyan);
}

.page-faq .qa[open] .qa__q::after {
  content: "−";
}

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

.page-faq .qa__index {
  flex: none;
  font-family: var(--f-mono);
  font-size: var(--fs-small);
  color: var(--c-cyan);
  font-variant-numeric: tabular-nums;
}

.page-faq .qa__text {
  flex: 1 1 auto;
}

.page-faq .qa__a {
  padding: 0 16px 16px var(--sp-5);
  color: var(--c-mist);
  font-size: var(--fs-body);
  line-height: 1.72;
}

.page-faq .qa__a p {
  margin: 0 0 var(--sp-3);
}

.page-faq .qa__a p:last-child {
  margin-bottom: 0;
}

.page-faq .qa__a ul {
  display: grid;
  gap: 6px;
  margin: 0;
  padding-left: 1.15em;
}

.page-faq .qa__a li::marker {
  color: var(--c-lime);
}

.page-faq .qa__a a {
  color: var(--c-cyan);
  text-decoration: underline;
  text-underline-offset: 3px;
}

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

.page-faq .qa-aside {
  margin: var(--sp-4) 0 var(--sp-5);
  padding: 12px 14px;
  border-left: 3px solid var(--c-lime);
  background: rgba(182, 255, 59, 0.08);
  font-size: var(--fs-small);
  line-height: 1.7;
  color: var(--c-paper);
}

.page-faq .qa-aside__label {
  margin: 0 0 4px;
  font-family: var(--f-mono);
  letter-spacing: 0.14em;
  color: var(--c-lime);
}

.page-faq .qa-aside p:last-child {
  margin: 0;
}

.page-faq .faq-block__figure {
  margin: var(--sp-5) 0 0;
}

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

.page-faq .glossary__item {
  margin: 0;
  padding: 14px 16px;
  background: var(--c-paper);
  color: var(--c-ink);
  border-top: 3px solid var(--c-cyan);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 12px), calc(100% - 12px) 100%, 0 100%);
}

.page-faq .glossary__term {
  margin: 0 0 4px;
  font-family: var(--f-mono);
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--c-deep);
}

.page-faq .glossary__def {
  margin: 0;
  font-size: var(--fs-small);
  line-height: 1.7;
  color: var(--faq-ink-soft);
}

@media (min-width: 640px) {
  .page-faq .glossary {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 900px) {
  .page-faq .faq-hero__inner {
    grid-template-columns: minmax(0, 1fr) minmax(280px, 372px);
  }

  .page-faq .faq-hero__stats {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-faq .faq-hot__grid {
    grid-template-columns: minmax(0, 1.06fr) minmax(0, 0.94fr);
    align-items: start;
  }
}

@media (min-width: 960px) {
  .page-faq .faq-layout {
    grid-template-columns: var(--faq-rail-w) minmax(0, 1fr);
    gap: clamp(24px, 3vw, 52px);
    align-items: start;
  }

  .page-faq .faq-rail {
    position: sticky;
    top: 96px;
  }
}