.page-faq {
  --faq-line: rgba(195, 205, 214, 0.14);
  --faq-amber-line: rgba(242, 178, 51, 0.6);
  --faq-soft: rgba(47, 163, 107, 0.1);
  padding-bottom: clamp(48px, 8vw, 88px);
  color: var(--white-cool);
}

.page-faq .faq-hero {
  padding-top: clamp(20px, 4vw, 44px);
}

.page-faq .faq-hero h1 {
  margin: 16px 0 0;
  font-size: clamp(34px, 7.2vw, 64px);
  line-height: 1.08;
  letter-spacing: -0.02em;
  font-weight: 700;
  max-width: 13em;
}

.page-faq .faq-hero .lede {
  margin: 18px 0 0;
  max-width: 44ch;
  color: var(--mist);
}

.page-faq .faq-hero__media {
  margin: clamp(24px, 4vw, 38px) 0 0;
}

.page-faq .faq-hero__media img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 16 / 7;
  object-fit: cover;
  border: 1px solid var(--faq-line);
  filter: saturate(0.85) contrast(1.02);
}

.page-faq .faq-hero__media .media__caption,
.page-faq .faq-device__media .media__caption {
  margin-top: 10px;
  font-size: 13px;
  line-height: 1.6;
  color: var(--mist);
}

.page-faq .faq-shell {
  display: grid;
  gap: 28px;
  margin-top: clamp(32px, 5vw, 56px);
}

.page-faq .faq-group {
  padding-left: 16px;
  border-left: 1px solid var(--faq-line);
  scroll-margin-top: calc(var(--bar-h) + 24px);
  transition: border-color var(--dur) var(--ease);
}

.page-faq .faq-group + .faq-group {
  margin-top: clamp(36px, 6vw, 60px);
}

.page-faq .faq-group:has(details[open]) {
  border-left-color: var(--faq-amber-line);
}

.page-faq .faq-group__no {
  display: block;
  margin: 0;
  font-size: 12px;
  letter-spacing: 0.18em;
  color: var(--green-light);
}

.page-faq .faq-group__title {
  margin: 8px 0 0;
  font-size: clamp(22px, 3.6vw, 28px);
  line-height: 1.25;
  letter-spacing: -0.01em;
  font-weight: 700;
  color: var(--white-cool);
}

.page-faq .faq-group__intro {
  margin: 8px 0 0;
  max-width: 40ch;
  font-size: 15px;
  line-height: 1.7;
  color: var(--mist);
}

.page-faq .qa-list {
  margin-top: 18px;
  border-top: 1px solid var(--faq-line);
}

.page-faq .qa {
  border-bottom: 1px solid var(--faq-line);
  transition: border-color var(--dur) var(--ease);
}

.page-faq .qa:hover,
.page-faq .qa[open] {
  border-bottom-color: var(--faq-amber-line);
}

.page-faq .qa summary {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 18px;
  min-height: 44px;
  padding: 18px 0;
  list-style: none;
  cursor: pointer;
  font-size: 17px;
  font-weight: 600;
  line-height: 1.6;
  color: var(--white-cool);
}

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

.page-faq .qa__q {
  transition: color var(--dur) var(--ease);
}

.page-faq .qa summary:hover .qa__q,
.page-faq .qa[open] summary .qa__q {
  color: var(--amber-soft);
}

.page-faq .qa__mark {
  position: relative;
  flex: 0 0 14px;
  width: 14px;
  height: 14px;
  margin-top: 7px;
}

.page-faq .qa__mark::before,
.page-faq .qa__mark::after {
  content: "";
  position: absolute;
  background: var(--amber);
  transition: transform var(--dur) var(--ease), opacity var(--dur) var(--ease);
}

.page-faq .qa__mark::before {
  left: 0;
  top: 6px;
  width: 14px;
  height: 1.5px;
}

.page-faq .qa__mark::after {
  left: 6px;
  top: 0;
  width: 1.5px;
  height: 14px;
}

.page-faq .qa[open] .qa__mark::after {
  transform: scaleY(0);
  opacity: 0;
}

.page-faq .qa__body {
  padding-bottom: 22px;
}

.page-faq .steps {
  margin: 0;
  padding: 0;
  list-style: none;
  counter-reset: faqstep;
}

.page-faq .steps li {
  counter-increment: faqstep;
  position: relative;
  padding: 12px 0 12px 46px;
  border-top: 1px solid var(--faq-line);
  font-size: 15px;
  line-height: 1.75;
  color: var(--mist);
}

.page-faq .steps li:first-child {
  border-top: 0;
}

.page-faq .steps li::before {
  content: counter(faqstep, decimal-leading-zero);
  position: absolute;
  left: 0;
  top: 10px;
  font-family: var(--font-mono);
  font-size: 20px;
  font-weight: 600;
  line-height: 1;
  color: var(--green-light);
}

.page-faq .qa__why {
  margin: 14px 0 0;
  padding: 12px 14px;
  background: var(--faq-soft);
  border-left: 2px solid var(--green);
  font-size: 14px;
  line-height: 1.7;
  color: var(--mist);
}

.page-faq .faq-device {
  display: grid;
  gap: 20px;
  margin-top: 18px;
}

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

.page-faq .faq-device__media img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 10 / 7;
  object-fit: cover;
  border: 1px solid var(--faq-line);
  filter: saturate(0.85);
  transition: transform var(--dur) var(--ease);
}

.page-faq .faq-device__media:hover img {
  transform: scale(1.02);
}

.page-faq .faq-device .qa-list {
  margin-top: 0;
}

.page-faq .faq-side {
  padding: 16px;
  border: 1px solid var(--faq-line);
  background: var(--ink-800);
  box-shadow: var(--shadow);
}

.page-faq .faq-side__title {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--mist);
}

.page-faq .faq-side__list {
  display: flex;
  gap: 8px;
  margin: 12px 0 0;
  padding: 0 0 4px;
  list-style: none;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}

.page-faq .faq-side__link {
  display: flex;
  align-items: center;
  gap: 8px;
  min-height: 44px;
  padding: 8px 12px;
  border: 1px solid var(--faq-line);
  color: var(--mist);
  font-size: 14px;
  text-decoration: none;
  white-space: nowrap;
  transition: color var(--dur) var(--ease), border-color var(--dur) var(--ease),
    background-color var(--dur) var(--ease);
}

.page-faq .faq-side__link .num {
  font-size: 11px;
  color: inherit;
  opacity: 0.65;
}

.page-faq .faq-side__link:hover {
  color: var(--white-cool);
  border-color: var(--faq-amber-line);
}

.page-faq:has(#g-access:target) .faq-side__link[href="#g-access"],
.page-faq:has(#g-calendar:target) .faq-side__link[href="#g-calendar"],
.page-faq:has(#g-version:target) .faq-side__link[href="#g-version"],
.page-faq:has(#g-device:target) .faq-side__link[href="#g-device"],
.page-faq:has(#g-help:target) .faq-side__link[href="#g-help"] {
  color: var(--ink-900);
  background: var(--amber);
  border-color: var(--amber);
}

.page-faq .faq-side__help {
  margin-top: 16px;
  padding-top: 16px;
  border-top: 1px solid var(--faq-line);
}

.page-faq .faq-side__help p {
  margin: 8px 0 0;
  font-size: 13px;
  line-height: 1.65;
  color: var(--mist);
  word-break: break-word;
}

.page-faq .faq-side__help p .num {
  margin-right: 6px;
  color: var(--white-cool);
}

.page-faq .faq-side__help .btn {
  width: 100%;
  margin-top: 14px;
  justify-content: center;
}

@media (min-width: 720px) {
  .page-faq .faq-group {
    padding-left: 22px;
  }

  .page-faq .steps li {
    padding-left: 54px;
    font-size: 16px;
  }
}

@media (min-width: 960px) {
  .page-faq .faq-shell {
    grid-template-columns: minmax(0, 1fr) 232px;
    gap: 48px;
    align-items: start;
  }

  .page-faq .faq-side {
    position: sticky;
    top: calc(var(--bar-h) + 20px);
  }

  .page-faq .faq-side__list {
    flex-direction: column;
    overflow: visible;
  }

  .page-faq .faq-side__link {
    white-space: normal;
  }
}

@media (min-width: 900px) {
  .page-faq .faq-device {
    grid-template-columns: 300px minmax(0, 1fr);
    gap: 28px;
    align-items: start;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .qa__mark::before,
  .page-faq .qa__mark::after,
  .page-faq .faq-device__media img,
  .page-faq .faq-side__link,
  .page-faq .qa,
  .page-faq .faq-group {
    transition: none;
  }

  .page-faq .faq-device__media:hover img {
    transform: none;
  }
}
<<<END>>>