.page-faq {
  --faq-line: var(--c-line);
  --faq-gap: clamp(20px, 4vw, 44px);
  background: var(--c-ink);
  color: var(--c-paper);
}

.page-faq .breadcrumbs {
  padding-top: 20px;
  font-size: 12px;
  letter-spacing: 0.04em;
  color: var(--c-muted);
}
.page-faq .breadcrumbs a {
  color: var(--c-muted);
  text-decoration: none;
  transition: color 0.16s var(--ease);
}
.page-faq .breadcrumbs a::after {
  content: "/";
  margin: 0 8px;
  color: var(--faq-line);
}
.page-faq .breadcrumbs a:hover {
  color: var(--c-cyan);
}
.page-faq .breadcrumbs span {
  color: var(--c-paper);
}

.page-faq .faq-hero {
  padding: clamp(24px, 5vw, 54px) 0 clamp(22px, 4vw, 38px);
  border-bottom: 1px solid var(--faq-line);
}
.page-faq .faq-hero h1 {
  margin: 14px 0 0;
  font-size: clamp(28px, 5.4vw, 54px);
  line-height: 1.06;
  letter-spacing: -0.02em;
  font-weight: 800;
  max-width: 19em;
}
.page-faq .faq-hero .lede {
  margin: 18px 0 0;
  max-width: 34em;
  font-size: 15px;
  line-height: 1.78;
  color: var(--c-muted);
}

.page-faq .faq-jump {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 26px 0 0;
  padding: 0;
  list-style: none;
}
.page-faq .faq-jump a {
  display: inline-block;
  padding: 7px 12px;
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--c-mist);
  text-decoration: none;
  border: 1px solid var(--faq-line);
  border-radius: 2px;
  transition: color 0.16s var(--ease), background-color 0.16s var(--ease), border-color 0.16s var(--ease);
}
.page-faq .faq-jump a:hover,
.page-faq .faq-jump a:focus-visible {
  color: var(--c-ink);
  background: var(--c-cyan);
  border-color: var(--c-cyan);
}

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

.page-faq .faq-layout {
  display: grid;
  gap: 24px;
  padding: clamp(22px, 4vw, 40px) 0 clamp(30px, 6vw, 70px);
}

.page-faq .faq-toc {
  padding-bottom: 12px;
  border-bottom: 1px solid var(--faq-line);
}
.page-faq .toc-title {
  display: none;
}
.page-faq .toc-list {
  display: flex;
  gap: 6px;
  margin: 0;
  padding: 0 0 4px;
  list-style: none;
  overflow-x: auto;
  scrollbar-width: thin;
}
.page-faq .toc-link {
  display: flex;
  align-items: baseline;
  gap: 8px;
  padding: 6px 10px;
  white-space: nowrap;
  font-size: 12px;
  color: var(--c-muted);
  text-decoration: none;
  border-left: 2px solid transparent;
  transition: color 0.16s var(--ease), border-color 0.16s var(--ease), background-color 0.16s var(--ease);
}
.page-faq .toc-no {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.04em;
  color: var(--faq-line);
}

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

.page-faq .faq-block {
  padding: 26px 0 34px;
  border-top: 1px solid var(--faq-line);
  scroll-margin-top: 76px;
}
.page-faq .faq-block:first-child {
  border-top: 0;
  padding-top: 0;
}
.page-faq .faq-block:target {
  border-top-color: var(--c-cyan);
}

.page-faq .block-head h2,
.page-faq .support h2 {
  margin: 10px 0 0;
  font-size: clamp(21px, 3.2vw, 31px);
  line-height: 1.18;
  letter-spacing: -0.01em;
  font-weight: 800;
}
.page-faq .prose {
  margin: 12px 0 0;
  max-width: 34em;
  font-size: 15px;
  line-height: 1.78;
  color: var(--c-muted);
}
.page-faq .prose a,
.page-faq .faq-answer a {
  color: var(--c-cyan);
  text-decoration: none;
  border-bottom: 1px solid var(--faq-line);
  transition: border-color 0.16s var(--ease), color 0.16s var(--ease);
}
.page-faq .prose a:hover,
.page-faq .faq-answer a:hover {
  border-bottom-color: var(--c-cyan);
}

.page-faq .faq-figure {
  margin: 22px 0 0;
}
.page-faq .faq-figure img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  border: 1px solid var(--faq-line);
  background: var(--c-band);
  object-fit: cover;
}
.page-faq .faq-figure figcaption {
  margin-top: 9px;
  font-size: 11.5px;
  line-height: 1.6;
  letter-spacing: 0.04em;
  color: var(--c-muted);
}

.page-faq .sub-steps {
  margin: 24px 0 0;
  padding: 0;
  list-style: none;
  counter-reset: step;
  border-top: 1px solid var(--faq-line);
}
.page-faq .sub-step {
  position: relative;
  counter-increment: step;
  padding: 15px 0 15px 52px;
  border-bottom: 1px solid var(--faq-line);
}
.page-faq .sub-step::before {
  content: counter(step, decimal-leading-zero);
  position: absolute;
  left: 0;
  top: 18px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--c-cyan);
}
.page-faq .sub-step::after {
  content: "";
  position: absolute;
  left: 27px;
  top: 22px;
  bottom: -1px;
  width: 1px;
  background: var(--faq-line);
}
.page-faq .sub-step:last-child::after {
  display: none;
}
.page-faq .sub-step h3 {
  margin: 0;
  font-size: 14px;
  line-height: 1.6;
  letter-spacing: 0.01em;
  font-weight: 700;
  color: var(--c-paper);
}
.page-faq .sub-step p {
  margin: 6px 0 0;
  max-width: 36em;
  font-size: 13.5px;
  line-height: 1.72;
  color: var(--c-muted);
}

.page-faq .faq-list {
  counter-reset: qa;
  margin: 20px 0 0;
}
.page-faq .faq-item {
  position: relative;
  counter-increment: qa;
  border-bottom: 1px solid var(--faq-line);
}
.page-faq .faq-item::before {
  content: "";
  position: absolute;
  left: -9px;
  top: 15px;
  width: 2px;
  height: 14px;
  background: var(--c-cyan);
  opacity: 0;
  transition: opacity 0.16s var(--ease);
}
.page-faq .faq-item:hover::before,
.page-faq .faq-item[open]::before {
  opacity: 1;
}
.page-faq .faq-item summary {
  display: grid;
  grid-template-columns: 24px minmax(0, 1fr) 16px;
  gap: 10px;
  align-items: start;
  padding: 15px 0;
  cursor: pointer;
  list-style: none;
}
.page-faq .faq-item summary::-webkit-details-marker {
  display: none;
}
.page-faq .q-no {
  padding-top: 4px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.06em;
  color: var(--faq-line);
}
.page-faq .q-no::before {
  content: counter(qa, decimal-leading-zero);
}
.page-faq .q-text {
  font-size: 14.5px;
  line-height: 1.62;
  font-weight: 600;
  color: var(--c-paper);
  transition: color 0.16s var(--ease);
}
.page-faq .faq-item[open] .q-text,
.page-faq .faq-item[open] .q-no {
  color: var(--c-cyan);
}
.page-faq .q-sign {
  position: relative;
  width: 16px;
  height: 16px;
  margin-top: 5px;
}
.page-faq .q-sign::before,
.page-faq .q-sign::after {
  content: "";
  position: absolute;
  left: 50%;
  top: 50%;
  background: var(--c-mist);
  transition: transform 0.18s var(--ease), opacity 0.18s var(--ease), background-color 0.18s var(--ease);
}
.page-faq .q-sign::before {
  width: 14px;
  height: 1.5px;
  transform: translate(-50%, -50%);
}
.page-faq .q-sign::after {
  width: 1.5px;
  height: 14px;
  transform: translate(-50%, -50%);
}
.page-faq .faq-item[open] .q-sign::before {
  background: var(--c-cyan);
}
.page-faq .faq-item[open] .q-sign::after {
  transform: translate(-50%, -50%) rotate(90deg);
  opacity: 0;
}
.page-faq .faq-answer {
  margin: 0 0 16px;
  padding-right: 4px;
  font-size: 13.5px;
  line-height: 1.8;
  color: var(--c-muted);
}
.page-faq .faq-answer p {
  margin: 0 0 8px;
  max-width: 36em;
}
.page-faq .faq-answer p:last-child {
  margin-bottom: 0;
}

.page-faq .support {
  margin-top: 10px;
  padding: clamp(20px, 4vw, 38px);
  background: var(--c-band);
  border-left: 3px solid var(--c-gold);
  border-top-color: var(--c-gold);
}
.page-faq .template {
  margin: 20px 0 0;
  padding: 14px 16px;
  background: var(--c-ink);
  border: 1px dashed var(--faq-line);
  font-family: var(--font-mono);
  font-size: 12.5px;
  line-height: 1.95;
  color: var(--c-sand);
  word-break: break-word;
}
.page-faq .contact-list {
  margin: 20px 0 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 10px;
}
.page-faq .contact-list li {
  font-size: 13.5px;
  line-height: 1.72;
  color: var(--c-muted);
}
.page-faq .contact-list strong {
  color: var(--c-paper);
  font-weight: 600;
}
.page-faq .contact-list a {
  color: var(--c-cyan);
  text-decoration: none;
  border-bottom: 1px solid var(--faq-line);
}
.page-faq .contact-list a:hover {
  border-bottom-color: var(--c-cyan);
}
.page-faq .support-tail {
  max-width: 36em;
}

@media (min-width: 600px) {
  .page-faq .faq-answer {
    margin-left: 34px;
    padding-right: 10px;
  }
}

@media (min-width: 820px) {
  .page-faq .split {
    display: grid;
    grid-template-columns: 5fr 7fr;
    gap: var(--faq-gap);
    align-items: start;
    margin-top: 6px;
  }
  .page-faq .split .faq-figure {
    margin-top: 24px;
  }
  .page-faq .split .faq-list {
    margin-top: 18px;
  }
}

@media (min-width: 900px) {
  .page-faq .faq-layout {
    grid-template-columns: 214px minmax(0, 1fr);
    gap: clamp(24px, 4vw, 54px);
    align-items: start;
  }
  .page-faq .faq-toc {
    position: sticky;
    top: 20px;
    padding-bottom: 0;
    border-bottom: 0;
  }
  .page-faq .toc-title {
    display: block;
    margin: 0 0 12px;
    font-size: 11px;
    letter-spacing: 0.16em;
    color: var(--c-muted);
  }
  .page-faq .toc-list {
    flex-direction: column;
    gap: 0;
    overflow: visible;
  }
  .page-faq .toc-link {
    padding: 9px 0 9px 12px;
    white-space: normal;
    border-left: 2px solid var(--faq-line);
  }
  .page-faq .toc-link:hover {
    color: var(--c-paper);
    background: var(--c-surface);
    border-left-color: var(--c-cyan);
  }
  .page-faq .toc-link:hover .toc-no {
    color: var(--c-cyan);
  }
}
<<<END>>>