.page-faq {
  --faq-panel-top: rgba(16, 41, 76, 0.72);
  --faq-panel-bottom: rgba(11, 30, 58, 0.92);
  padding-bottom: clamp(64px, 12vw, 144px);
}

.page-faq .faq-hero {
  padding-top: 24px;
  padding-bottom: clamp(32px, 6vw, 56px);
}

.page-faq .faq-hero__title {
  max-width: 24ch;
  margin: 12px 0 0;
  font-size: clamp(30px, 6.4vw, 60px);
  font-weight: 300;
  line-height: 1.1;
  letter-spacing: -0.02em;
  color: var(--yb-paper);
}

.page-faq .faq-hero__lede {
  max-width: 46ch;
  margin-top: 20px;
  color: var(--yb-steel);
  font-size: 16px;
  line-height: 1.85;
}

.page-faq .faq-hero__keys {
  list-style: none;
  margin: 28px 0 0;
  padding: 0;
  display: grid;
  gap: 10px;
}

.page-faq .faq-hero__keys li {
  display: flex;
  gap: 10px;
  align-items: baseline;
  padding-top: 10px;
  border-top: 1px solid var(--yb-line-soft);
  font-size: 14px;
  line-height: 1.6;
  color: var(--yb-steel);
}

.page-faq .faq-hero__num {
  flex: none;
  font-family: var(--yb-font-mono);
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--yb-ember);
}

.page-faq .faq-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 32px;
}

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

.page-faq .faq-toc__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: row;
  gap: 6px;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: thin;
}

.page-faq .faq-toc__list a {
  display: flex;
  gap: 8px;
  align-items: baseline;
  padding: 8px 12px;
  border-bottom: 1px solid var(--yb-line-soft);
  color: var(--yb-steel);
  font-size: 14px;
  line-height: 1.5;
  text-decoration: none;
  white-space: nowrap;
  transition: color 160ms var(--yb-ease), border-color 160ms var(--yb-ease);
}

.page-faq .faq-toc__list a:hover,
.page-faq .faq-toc__list a:focus-visible {
  color: var(--yb-paper);
  border-bottom-color: var(--yb-signal);
}

.page-faq .faq-toc__list a[aria-current="true"] {
  color: var(--yb-whistle);
  border-bottom-color: var(--yb-whistle);
}

.page-faq .faq-toc__no {
  font-family: var(--yb-font-mono);
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--yb-mute);
}

.page-faq .faq-rail__note {
  margin-top: 20px;
  padding: 14px 16px;
  background: var(--yb-abyss);
  border: 1px solid var(--yb-line-faint);
  clip-path: var(--yb-cut-rb);
}

.page-faq .faq-rail__code {
  margin: 6px 0 4px;
  font-size: 14px;
  letter-spacing: 0.04em;
  color: var(--yb-signal);
  word-break: break-word;
}

.page-faq .faq-rail__hint {
  margin: 0;
  font-size: 13px;
  line-height: 1.6;
  color: var(--yb-mute);
}

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

.page-faq .faq-group + .faq-group {
  margin-top: clamp(48px, 8vw, 88px);
}

.page-faq .faq-group__head {
  display: flex;
  align-items: baseline;
  gap: 12px;
  padding-bottom: 10px;
  margin-bottom: 22px;
  border-bottom: 1px solid var(--yb-line);
}

.page-faq .faq-group__no {
  font-family: var(--yb-font-mono);
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--yb-signal);
}

.page-faq .faq-group__title {
  margin: 0;
  font-size: clamp(21px, 3.4vw, 32px);
  font-weight: 500;
  line-height: 1.2;
  color: var(--yb-paper);
}

.page-faq .faq-group__title::before {
  content: "";
  display: inline-block;
  width: 13px;
  height: 13px;
  margin-right: 10px;
  background: var(--yb-signal);
  transform: skewX(-18deg) translateY(1px);
}

.page-faq .faq-banner {
  margin: 0 0 24px;
  position: relative;
  overflow: hidden;
  clip-path: var(--yb-cut-lt);
}

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

.page-faq .faq-steps {
  counter-reset: faqstep;
  list-style: none;
  margin: 0 0 26px;
  padding: 0;
  display: grid;
  gap: 12px;
}

.page-faq .faq-step {
  counter-increment: faqstep;
  padding: 18px 16px 16px;
  background: var(--yb-room);
  border: 1px solid var(--yb-line);
  clip-path: var(--yb-cut-lt);
  font-size: 14px;
  line-height: 1.75;
  color: var(--yb-steel);
}

.page-faq .faq-step:nth-child(even) {
  clip-path: var(--yb-cut-rb);
}

.page-faq .faq-step::before {
  content: counter(faqstep, decimal-leading-zero);
  display: block;
  margin-bottom: 10px;
  font-family: var(--yb-font-mono);
  font-size: 26px;
  font-weight: 500;
  line-height: 1;
  letter-spacing: 0.04em;
  color: var(--yb-signal);
}

.page-faq .faq-step strong {
  display: block;
  margin-bottom: 4px;
  color: var(--yb-paper);
  font-size: 15px;
  font-weight: 700;
}

.page-faq .faq-q {
  margin-bottom: 12px;
  border: 1px solid var(--yb-line);
  background: linear-gradient(180deg, var(--faq-panel-top), var(--faq-panel-bottom));
  clip-path: var(--yb-cut-lt);
}

.page-faq .faq-q:nth-of-type(even) {
  clip-path: var(--yb-cut-rb);
}

.page-faq .faq-q__ask {
  position: relative;
  padding: 16px 46px 16px 18px;
  cursor: pointer;
  list-style: none;
  font-size: 16px;
  font-weight: 500;
  line-height: 1.5;
  color: var(--yb-paper);
}

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

.page-faq .faq-q__ask::after {
  content: "＋";
  position: absolute;
  top: 50%;
  right: 16px;
  transform: translateY(-50%);
  font-family: var(--yb-font-mono);
  font-size: 16px;
  line-height: 1;
  color: var(--yb-signal);
  transition: color 160ms var(--yb-ease);
}

.page-faq .faq-q[open] .faq-q__ask::after {
  content: "－";
  color: var(--yb-ember);
}

.page-faq .faq-q__ask:focus-visible {
  outline: 1px solid var(--yb-signal);
  outline-offset: 2px;
}

.page-faq .faq-q__body {
  padding: 14px 18px 18px;
  border-top: 1px solid var(--yb-line-soft);
}

.page-faq .faq-q__body p {
  margin: 0;
  font-size: 14px;
  line-height: 1.8;
  color: var(--yb-steel);
}

.page-faq .faq-q__go {
  margin-top: 10px !important;
  font-size: 13px !important;
  color: var(--yb-mute) !important;
}

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

.page-faq .faq-q__go a:hover,
.page-faq .faq-q__go a:focus-visible {
  border-bottom-color: var(--yb-signal);
}

.page-faq .yb-quick-read {
  margin: 18px 0 0;
  font-size: 14px;
  line-height: 1.7;
  color: var(--yb-mute);
}

.page-faq .faq-band {
  margin: clamp(40px, 7vw, 64px) 0;
  padding: 20px;
  background: var(--yb-room);
  border-left: 3px solid var(--yb-ember);
  clip-path: var(--yb-cut-rb);
}

.page-faq .faq-band--paper {
  background: var(--yb-paper);
  border-left-color: var(--yb-red);
  color: var(--yb-ink);
}

.page-faq .faq-band__title {
  margin: 0;
  font-size: 15px;
  font-weight: 700;
  letter-spacing: 0.04em;
  color: var(--yb-paper);
}

.page-faq .faq-band--paper .faq-band__title {
  color: var(--yb-ink);
}

.page-faq .faq-band__text {
  margin: 8px 0 0;
  font-size: 14px;
  line-height: 1.75;
  color: var(--yb-steel);
}

.page-faq .faq-band--paper .faq-band__text {
  color: #3B2C1C;
}

.page-faq .faq-split {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 24px;
}

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

.page-faq .faq-split__lede {
  margin: 0 0 16px;
  font-size: 15px;
  line-height: 1.8;
  color: var(--yb-steel);
}

.page-faq .faq-code {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px;
  padding: 14px 16px;
  margin-bottom: 20px;
  background: rgba(7, 18, 39, 0.6);
  border: 1px dashed var(--yb-line);
}

.page-faq .faq-code__value {
  margin: 0;
  font-family: var(--yb-font-mono);
  font-size: 16px;
  letter-spacing: 0.06em;
  color: var(--yb-signal);
}

.page-faq .faq-code__copy {
  font: inherit;
  font-size: 12px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  padding: 6px 12px;
  background: transparent;
  color: var(--yb-steel);
  border: 1px solid var(--yb-line);
  cursor: pointer;
  clip-path: var(--yb-cut-lt);
  transition: color 160ms var(--yb-ease), border-color 160ms var(--yb-ease);
}

.page-faq .faq-code__copy:hover,
.page-faq .faq-code__copy:focus-visible {
  color: var(--yb-signal);
  border-color: var(--yb-signal);
}

.page-faq .faq-code__copy[data-copied="true"] {
  color: var(--yb-signal);
  border-color: var(--yb-signal);
}

.page-faq .faq-code-figure {
  margin: 0;
  overflow: hidden;
  clip-path: var(--yb-cut-rb);
}

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

.page-faq .faq-contact {
  padding: 20px;
  background: var(--yb-abyss);
  border: 1px solid var(--yb-line-faint);
  clip-path: var(--yb-cut-lt);
}

.page-faq .faq-contact__lede {
  margin: 0 0 16px;
  font-size: 15px;
  line-height: 1.8;
  color: var(--yb-steel);
}

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

.page-faq .faq-contact__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 1px;
}

.page-faq .faq-contact__list li {
  display: flex;
  flex-wrap: wrap;
  gap: 6px 14px;
  align-items: baseline;
  padding: 12px 0;
  border-top: 1px solid var(--yb-line-faint);
}

.page-faq .faq-contact__list .yb-label {
  flex: none;
  min-width: 5.5em;
  color: var(--yb-mute);
}

.page-faq .faq-contact__value {
  font-size: 15px;
  line-height: 1.6;
  color: var(--yb-paper);
  word-break: break-word;
}

.page-faq .faq-contact__note {
  margin: 16px 0 0;
  font-size: 13px;
  line-height: 1.75;
  color: var(--yb-mute);
}

.page-faq .faq-contact__note a {
  color: var(--yb-steel);
  border-bottom: 1px solid var(--yb-line-soft);
  text-decoration: none;
}

@media (min-width: 768px) {
  .page-faq .faq-hero__keys {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 20px;
  }

  .page-faq .faq-steps {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-faq .faq-split {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    align-items: start;
    gap: 28px;
  }

  .page-faq .faq-contact__list li {
    align-items: center;
  }
}

@media (min-width: 992px) {
  .page-faq .faq-layout {
    grid-template-columns: minmax(0, 3fr) minmax(0, 8fr);
    gap: 56px;
    align-items: start;
  }

  .page-faq .faq-rail {
    position: sticky;
    top: 104px;
  }

  .page-faq .faq-toc__list {
    flex-direction: column;
    gap: 2px;
    overflow-x: visible;
  }

  .page-faq .faq-toc__list a {
    padding: 10px 10px 10px 12px;
    border-bottom: 0;
    border-left: 1px solid var(--yb-line-soft);
    white-space: normal;
  }

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

  .page-faq .faq-toc__list a[aria-current="true"] {
    border-left-color: var(--yb-whistle);
    border-bottom-color: transparent;
  }
}

@media (min-width: 1200px) {
  .page-faq .faq-group__title {
    font-size: 32px;
  }

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

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-toc__list a,
  .page-faq .faq-q__ask::after,
  .page-faq .faq-code__copy {
    transition: none;
  }
}
</main>