.page-faq {
  --faq-index-w: 15rem;
  --faq-sticky-top: 5.5rem;
}

.page-faq .breadcrumb {
  padding-block: 1.25rem 0.5rem;
}

.page-faq .faq-hero {
  display: grid;
  gap: 2rem;
  padding-block: clamp(1rem, 0.6rem + 2vw, 2rem) clamp(2.25rem, 1.5rem + 3vw, 3.5rem);
  align-items: center;
}

.page-faq .faq-hero__text h1 {
  font-family: var(--font-serif);
  font-size: var(--fs-h1);
  font-weight: 800;
  line-height: 1.18;
  letter-spacing: -0.01em;
  margin: 0.75rem 0 1rem;
  max-width: 20ch;
}

.page-faq .faq-hero .lede {
  margin: 0;
  max-width: 46ch;
  color: var(--muted);
  line-height: 1.8;
}

.page-faq .faq-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-top: 1.5rem;
}

.page-faq .faq-hero__figure {
  position: relative;
  margin: 0;
}

.page-faq .faq-hero__figure img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 9 / 10;
  object-fit: cover;
  clip-path: polygon(0 0, 100% 0, 100% 88%, 92% 100%, 0 100%);
  box-shadow: var(--shadow-lg);
}

.page-faq .faq-hero__figure::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(165deg, rgba(14, 124, 147, 0.3), transparent 58%);
  clip-path: polygon(0 0, 100% 0, 100% 88%, 92% 100%, 0 100%);
  pointer-events: none;
}

.page-faq .faq-layout {
  display: grid;
  gap: 2rem;
  border-top: 1px solid var(--hair);
  padding-top: clamp(1.5rem, 1rem + 1.5vw, 2.25rem);
}

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

.page-faq .faq-index__label {
  margin: 0 0 0.75rem;
  font-size: var(--fs-micro);
  letter-spacing: 0.18em;
  color: var(--muted-deep);
}

.page-faq .faq-index__list {
  list-style: none;
  margin: 0;
  padding: 0 0 0.5rem;
  display: flex;
  flex-wrap: nowrap;
  gap: 0.25rem;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}

.page-faq .faq-index__list a {
  display: block;
  padding: 0.5rem 0.7rem;
  white-space: nowrap;
  font-size: var(--fs-small);
  color: var(--muted);
  text-decoration: none;
  border-bottom: 2px solid transparent;
  transition: color 180ms var(--ease), border-color 180ms var(--ease), background-color 180ms var(--ease);
}

.page-faq .faq-index__list a:hover,
.page-faq .faq-index__list a:focus-visible {
  color: var(--paper);
  border-bottom-color: var(--cyan);
  background: var(--cyan-soft);
}

.page-faq .faq-index__note {
  display: none;
  margin: 1.25rem 0 0;
  font-size: var(--fs-micro);
  line-height: 1.7;
  letter-spacing: 0.04em;
  color: var(--muted-deep);
  border-top: 1px solid var(--hair);
  padding-top: 0.85rem;
}

.page-faq .faq-stream {
  display: grid;
  gap: clamp(2.5rem, 2rem + 3vw, 4rem);
  min-width: 0;
}

.page-faq .faq-block {
  border-top: 1px solid var(--hair);
  padding-top: clamp(1.5rem, 1rem + 1.5vw, 2.25rem);
  min-width: 0;
  scroll-margin-top: var(--faq-sticky-top);
}

.page-faq .faq-block:target {
  border-top-color: var(--cyan);
}

.page-faq .faq-block__head {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  column-gap: 0.9rem;
  align-items: baseline;
  margin-bottom: 1.35rem;
}

.page-faq .faq-block__no {
  font-family: var(--font-mono);
  font-size: var(--fs-small);
  letter-spacing: 0.08em;
  color: var(--cyan);
}

.page-faq .faq-block__head h2 {
  margin: 0;
  font-family: var(--font-sans);
  font-weight: 800;
  font-size: var(--fs-h2);
  line-height: 1.25;
  letter-spacing: -0.01em;
}

.page-faq .faq-block__sub {
  grid-column: 2;
  margin: 0.5rem 0 0;
  font-size: var(--fs-small);
  line-height: 1.7;
  color: var(--muted);
  max-width: 44ch;
}

.page-faq .faq-top3 {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 1.25rem;
}

.page-faq .faq-top3__item {
  display: flex;
  flex-direction: column;
  gap: 0.55rem;
  border-top: 2px solid var(--red);
  padding-top: 0.9rem;
}

.page-faq .faq-top3__q {
  margin: 0;
  font-family: var(--font-sans);
  font-weight: 800;
  font-size: var(--fs-h3);
  line-height: 1.4;
}

.page-faq .faq-top3__a {
  margin: 0;
  font-size: var(--fs-small);
  line-height: 1.8;
  color: var(--muted);
}

.page-faq .faq-top3__link {
  margin-top: auto;
  padding-top: 0.35rem;
  font-size: var(--fs-small);
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  align-self: flex-start;
  transition: border-color 180ms var(--ease), color 180ms var(--ease);
}

.page-faq .faq-top3__link:hover,
.page-faq .faq-top3__link:focus-visible {
  border-bottom-color: var(--cyan);
}

.page-faq .faq-figure {
  margin: 1.25rem 0 0;
}

.page-faq .faq-figure img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 5 / 3;
  object-fit: cover;
  border: 1px solid var(--hair);
}

.page-faq .faq-figure figcaption {
  margin-top: 0.6rem;
  font-size: var(--fs-micro);
  letter-spacing: 0.04em;
  color: var(--muted-deep);
}

.page-faq .check-list {
  list-style: none;
  margin: 1.5rem 0 0;
  padding: 0;
  display: grid;
  gap: 1px;
  background: var(--hair);
  border: 1px solid var(--hair);
}

.page-faq .check-list__item {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 0.85rem;
  align-items: start;
  padding: 1rem 1.05rem;
  background: var(--panel-deep);
}

.page-faq .check-list__no {
  display: grid;
  place-items: center;
  width: 1.75rem;
  height: 1.75rem;
  font-family: var(--font-mono);
  font-size: var(--fs-micro);
  font-weight: 700;
  color: var(--black);
  background: var(--cyan);
  clip-path: polygon(0 0, 100% 0, 100% 68%, 78% 100%, 0 100%);
}

.page-faq .check-list__body {
  min-width: 0;
}

.page-faq .check-list__title {
  margin: 0;
  font-family: var(--font-sans);
  font-weight: 700;
  font-size: var(--fs-body);
  line-height: 1.4;
}

.page-faq .check-list__desc {
  margin: 0.3rem 0 0;
  font-size: var(--fs-small);
  line-height: 1.7;
  color: var(--muted);
}

.page-faq .faq-items {
  display: grid;
  gap: 0;
  margin-top: 1.5rem;
  border-top: 1px solid var(--hair);
}

.page-faq .faq-item {
  border-bottom: 1px solid var(--hair);
}

.page-faq .faq-item > summary {
  display: flex;
  align-items: flex-start;
  gap: 0.85rem;
  padding: 1.05rem 0;
  cursor: pointer;
  list-style: none;
  font-family: var(--font-sans);
  font-weight: 700;
  font-size: var(--fs-body);
  line-height: 1.55;
  color: var(--paper);
  transition: color 180ms var(--ease);
  outline-offset: 2px;
}

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

.page-faq .faq-item > summary::before {
  content: "";
  flex: 0 0 auto;
  width: 0.48rem;
  height: 0.48rem;
  margin-top: 0.55rem;
  border-right: 2px solid var(--cyan);
  border-bottom: 2px solid var(--cyan);
  transform: rotate(-45deg);
  transition: transform 200ms var(--ease);
}

.page-faq .faq-item[open] > summary::before {
  transform: rotate(45deg);
}

.page-faq .faq-item > summary:hover {
  color: var(--cyan);
}

.page-faq .faq-item > summary:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 2px;
}

.page-faq .faq-item__body {
  padding: 0 0 1.35rem 1.33rem;
  max-width: 62ch;
  font-size: var(--fs-small);
  line-height: 1.85;
  color: var(--muted);
}

.page-faq .faq-item__body p {
  margin: 0 0 0.7rem;
}

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

.page-faq .faq-item__body a {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid var(--cyan-soft);
  transition: border-color 180ms var(--ease);
}

.page-faq .faq-item__body a:hover,
.page-faq .faq-item__body a:focus-visible {
  border-bottom-color: var(--cyan);
}

.page-faq .reason-list {
  list-style: none;
  margin: 1.25rem 0 0;
  padding: 0;
  display: grid;
  gap: 1rem;
}

.page-faq .reason-list__item {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 0.8rem;
  align-items: start;
  padding-left: 0.9rem;
  border-left: 1px solid var(--hair-strong);
}

.page-faq .reason-list__no {
  font-family: var(--font-mono);
  font-size: var(--fs-micro);
  line-height: 1.5;
  color: var(--lime);
  letter-spacing: 0.05em;
}

.page-faq .reason-list__body {
  min-width: 0;
}

.page-faq .reason-list__t {
  margin: 0;
  font-family: var(--font-sans);
  font-weight: 700;
  font-size: var(--fs-small);
  color: var(--paper);
}

.page-faq .reason-list__d {
  margin: 0.25rem 0 0;
  font-size: var(--fs-micro);
  line-height: 1.75;
  color: var(--muted);
}

.page-faq .faq-help {
  margin-top: 2rem;
  padding: clamp(1.25rem, 1rem + 1.5vw, 2rem);
  background: linear-gradient(140deg, rgba(14, 124, 147, 0.22), rgba(21, 26, 30, 0.95) 58%);
  border: 1px solid var(--hair);
  clip-path: polygon(0 0, 100% 0, 100% 90%, 96% 100%, 0 100%);
}

.page-faq .faq-help__title {
  margin: 0;
  font-family: var(--font-sans);
  font-weight: 800;
  font-size: var(--fs-h3);
  line-height: 1.35;
}

.page-faq .faq-help__text {
  margin: 0.6rem 0 1.15rem;
  max-width: 56ch;
  font-size: var(--fs-small);
  line-height: 1.8;
  color: var(--muted);
}

.page-faq .faq-code {
  font-family: var(--font-mono);
  font-size: 0.95em;
  color: var(--paper);
}

@media (min-width: 720px) {
  .page-faq .faq-top3 {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 1.5rem;
  }

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

  .page-faq .reason-list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 1.25rem 1.75rem;
  }
}

@media (min-width: 900px) {
  .page-faq .faq-hero {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, 0.85fr);
    gap: clamp(2rem, 1rem + 3vw, 3.5rem);
  }
}

@media (min-width: 960px) {
  .page-faq .faq-layout {
    grid-template-columns: var(--faq-index-w) minmax(0, 1fr);
    gap: clamp(2rem, 1rem + 3vw, 4rem);
    align-items: start;
  }

  .page-faq .faq-index {
    position: sticky;
    top: var(--faq-sticky-top);
    align-self: start;
  }

  .page-faq .faq-index__list {
    flex-direction: column;
    gap: 0;
    overflow-x: visible;
    padding-bottom: 0;
  }

  .page-faq .faq-index__list a {
    padding: 0.55rem 0.75rem 0.55rem 0.9rem;
    white-space: normal;
    border-bottom: 0;
    border-left: 2px solid transparent;
  }

  .page-faq .faq-index__list a:hover,
  .page-faq .faq-index__list a:focus-visible {
    border-left-color: var(--cyan);
    border-bottom-color: transparent;
  }

  .page-faq .faq-index__note {
    display: block;
  }
}

@media (min-width: 1100px) {
  .page-faq .faq-item > summary {
    font-size: calc(var(--fs-body) * 1.06);
    padding: 1.2rem 0;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-index__list a,
  .page-faq .faq-item > summary,
  .page-faq .faq-item > summary::before,
  .page-faq .faq-top3__link,
  .page-faq .faq-item__body a {
    transition: none;
  }
}
<<<END>>>