.page-faq {
  --faq-rail-w: 224px;
  --faq-gap: 44px;
}

.page-faq .faq-hero {
  display: grid;
  gap: 26px;
  padding: 24px 0 12px;
}

.page-faq .faq-hero h1 {
  margin: 12px 0 16px;
  font-size: clamp(30px, 6.4vw, 52px);
  line-height: 1.1;
  letter-spacing: .01em;
  font-weight: 800;
  color: var(--snow);
}

.page-faq .faq-hero .lede {
  max-width: 42ch;
  color: var(--mist);
}

.page-faq .faq-sync {
  position: relative;
  overflow: hidden;
  padding: 20px 20px 18px;
  border: 1px solid var(--line);
  border-radius: var(--r-xl);
  background: linear-gradient(158deg, var(--panel) 0%, var(--ink) 100%);
}

.page-faq .faq-sync::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(var(--line) 1px, transparent 1px),
    linear-gradient(90deg, var(--line) 1px, transparent 1px);
  background-size: 44px 44px;
  opacity: .18;
  pointer-events: none;
}

.page-faq .faq-sync > * {
  position: relative;
}

.page-faq .faq-sync-label {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .12em;
  color: var(--cyan);
}

.page-faq .sync-art {
  position: relative;
  height: 112px;
  margin: 10px 0 12px;
}

.page-faq .sync-dev {
  position: absolute;
  display: block;
  border-radius: 12px;
  border: 1px solid var(--line);
}

.page-faq .sync-dev-a {
  left: 0;
  top: 10px;
  width: 92px;
  height: 70px;
  border-color: var(--cyan-deep);
  background: rgba(70, 240, 208, .07);
}

.page-faq .sync-dev-b {
  right: 0;
  bottom: 4px;
  width: 58px;
  height: 86px;
  background: rgba(159, 189, 180, .06);
}

.page-faq .sync-pulse {
  position: absolute;
  left: 50%;
  top: 50%;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--yellow);
  box-shadow: 0 0 0 7px rgba(255, 210, 90, .14);
  transform: translate(-50%, -50%);
}

.page-faq .faq-sync-note {
  margin: 0;
  font-size: 13px;
  line-height: 1.75;
  color: var(--mist);
}

.page-faq .faq-shell {
  display: grid;
  grid-template-columns: 1fr;
  gap: 22px;
  padding-top: 6px;
}

.page-faq .faq-rail-inner {
  padding: 4px 0 2px;
}

.page-faq .faq-rail-list {
  display: flex;
  gap: 8px;
  margin-top: 10px;
  padding: 2px 2px 10px;
  overflow-x: auto;
  scrollbar-width: none;
}

.page-faq .faq-rail-list::-webkit-scrollbar {
  display: none;
}

.page-faq .faq-rail-list a {
  flex: 0 0 auto;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 9px 14px;
  border: 1px solid var(--line);
  border-radius: var(--pill);
  color: var(--mist);
  font-size: 13px;
  text-decoration: none;
  transition: color .2s var(--ease), border-color .2s var(--ease), background .2s var(--ease);
}

.page-faq .faq-rail-list a:hover,
.page-faq .faq-rail-list a:focus-visible {
  color: var(--cyan);
  border-color: var(--cyan-deep);
  background: rgba(70, 240, 208, .06);
}

.page-faq .faq-rail-list .num {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .08em;
  color: var(--cyan-deep);
}

.page-faq .faq-group {
  padding: 24px 0 32px;
  scroll-margin-top: 88px;
}

.page-faq .faq-group + .faq-group {
  border-top: 1px solid var(--line);
}

.page-faq .faq-group .band {
  display: block;
  margin-bottom: 16px;
}

.page-faq .faq-group-head {
  margin-bottom: 18px;
}

.page-faq .faq-group-head h2 {
  margin: 8px 0 10px;
  font-size: clamp(21px, 3.8vw, 29px);
  line-height: 1.24;
  letter-spacing: .01em;
  color: var(--snow);
}

.page-faq .faq-group-intro {
  max-width: 48ch;
  margin: 0;
  color: var(--mist);
  font-size: 15px;
}

.page-faq .faq-group-media {
  margin: 0 0 20px;
  max-width: 560px;
}

.page-faq .faq-group-media--narrow {
  max-width: 400px;
}

.page-faq .faq-group-media img {
  display: block;
  width: 100%;
  height: auto;
  border-radius: var(--r-lg);
  object-fit: cover;
  border: 1px solid var(--line);
}

.page-faq .faq-group-media figcaption {
  margin-top: 8px;
  font-size: 13px;
  line-height: 1.7;
  color: var(--mist);
}

.page-faq .faq-item {
  margin-bottom: 10px;
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  background: var(--panel);
  overflow: hidden;
  transition: border-color .22s var(--ease), background .22s var(--ease);
}

.page-faq .faq-item[open] {
  border-color: var(--cyan-deep);
  background: var(--raise);
}

.page-faq .faq-item > summary {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  padding: 15px 16px;
  cursor: pointer;
  list-style: none;
}

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

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

.page-faq .faq-num {
  flex: 0 0 auto;
  padding-top: 3px;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: .08em;
  color: var(--cyan);
}

.page-faq .faq-q {
  flex: 1 1 auto;
  font-size: 16px;
  font-weight: 600;
  line-height: 1.55;
  color: var(--snow);
}

.page-faq .faq-mark {
  position: relative;
  flex: 0 0 22px;
  width: 22px;
  height: 22px;
  margin-top: 1px;
  border: 1px solid var(--line);
  border-radius: 50%;
}

.page-faq .faq-mark::before,
.page-faq .faq-mark::after {
  content: "";
  position: absolute;
  left: 50%;
  top: 50%;
  background: var(--cyan);
  transform: translate(-50%, -50%);
}

.page-faq .faq-mark::before {
  width: 10px;
  height: 2px;
}

.page-faq .faq-mark::after {
  width: 2px;
  height: 10px;
  transition: opacity .2s var(--ease);
}

.page-faq .faq-item[open] .faq-mark::after {
  opacity: 0;
}

.page-faq .faq-item[open] .faq-mark {
  border-color: var(--cyan-deep);
}

.page-faq .faq-a {
  padding: 0 16px 17px 51px;
  font-size: 15px;
  line-height: 1.8;
  color: var(--mist);
  animation: faqFade .28s var(--ease);
}

.page-faq .faq-a p {
  margin: 0 0 6px;
}

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

@keyframes faqFade {
  from {
    opacity: 0;
    transform: translateY(-4px);
  }
  to {
    opacity: 1;
    transform: none;
  }
}

.page-faq .faq-group--score .faq-item,
.page-faq .faq-group--room .faq-item {
  margin-bottom: 14px;
}

.page-faq .faq-group--room {
  padding-bottom: 40px;
}

.page-faq .term-note {
  margin: 18px 0 0;
  padding: 11px 14px;
  border: 1px dashed var(--line);
  border-radius: var(--r-md);
  font-size: 13px;
  line-height: 1.75;
  color: var(--mist);
}

.page-faq .faq-contact {
  margin: 18px 0 30px;
  padding: 24px 20px;
  border: 1px solid var(--line);
  border-radius: var(--r-xl);
  background: var(--panel);
  scroll-margin-top: 88px;
}

.page-faq .faq-contact h2 {
  margin: 10px 0 10px;
  font-size: clamp(21px, 3.8vw, 28px);
  color: var(--snow);
}

.page-faq .faq-contact-lede {
  max-width: 50ch;
  margin: 0 0 20px;
  color: var(--mist);
  font-size: 15px;
}

.page-faq .faq-contact-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 14px;
  margin-bottom: 18px;
}

.page-faq .faq-contact-item {
  padding: 14px 16px;
  border: 1px solid var(--line);
  border-radius: var(--r-md);
  background: var(--ink);
}

.page-faq .faq-contact-key {
  margin: 0 0 8px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .12em;
  color: var(--cyan);
}

.page-faq .faq-contact-value {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 16px;
  color: var(--snow);
  word-break: break-all;
}

.page-faq .faq-contact .copy-btn {
  max-width: 100%;
}

.page-faq .faq-contact .board-note {
  margin-bottom: 16px;
}

.page-faq .faq-contact .board-links {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.page-faq .faq-reminder {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 18px;
  align-items: center;
  margin: 0 0 52px;
  padding: 15px 17px;
  border-left: 3px solid var(--cinnabar);
  border-radius: var(--r-md);
  background: rgba(199, 67, 47, .09);
  font-size: 14px;
  line-height: 1.75;
  color: var(--snow);
}

@media (min-width: 640px) {
  .page-faq .faq-contact-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (min-width: 900px) {
  .page-faq .faq-hero {
    grid-template-columns: minmax(0, 1.35fr) minmax(280px, .65fr);
    align-items: end;
    gap: 48px;
    padding: 38px 0 22px;
  }

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

  .page-faq .faq-item > summary {
    padding: 18px 22px;
    gap: 18px;
  }

  .page-faq .faq-a {
    padding: 0 22px 20px 62px;
    max-width: 62ch;
  }

  .page-faq .faq-contact {
    padding: 32px 30px;
  }
}

@media (min-width: 1000px) {
  .page-faq .faq-shell {
    grid-template-columns: var(--faq-rail-w) minmax(0, 1fr);
    gap: var(--faq-gap);
    align-items: start;
    padding-top: 10px;
  }

  .page-faq .faq-rail-inner {
    position: sticky;
    top: 26px;
    padding: 20px 14px 20px 16px;
    border-left: 2px solid var(--line);
  }

  .page-faq .faq-rail-list {
    flex-direction: column;
    gap: 4px;
    margin-top: 12px;
    padding: 0;
    overflow: visible;
  }

  .page-faq .faq-rail-list a {
    width: 100%;
    padding: 11px 13px;
    border-color: transparent;
    border-radius: var(--r-md);
    justify-content: flex-start;
  }

  .page-faq .faq-rail-list a:hover,
  .page-faq .faq-rail-list a:focus-visible {
    border-color: var(--line);
    background: var(--raise);
  }

  .page-faq .faq-group {
    padding: 30px 0 40px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-a {
    animation: none;
  }

  .page-faq .faq-item,
  .page-faq .faq-mark::after,
  .page-faq .faq-rail-list a {
    transition: none;
  }
}
<<<END>>>