.page-faq {
  --faq-num-w: 30px;
  --faq-node: 16px;
  background: var(--white);
  color: var(--ink);
  overflow-x: clip;
}

/* ---------- hero ---------- */
.page-faq .faq-hero {
  position: relative;
  padding: clamp(26px, 4.5vw, 52px) 0 clamp(40px, 6vw, 78px);
  overflow: hidden;
}

.page-faq .faq-hero::after {
  content: "";
  position: absolute;
  right: -12%;
  bottom: -40%;
  width: 46vw;
  height: 46vw;
  max-width: 520px;
  max-height: 520px;
  background: radial-gradient(circle, rgba(44, 229, 210, 0.16), transparent 68%);
  pointer-events: none;
}

.page-faq .faq-hero__grid {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(26px, 4vw, 44px);
  margin-top: clamp(22px, 3.6vw, 44px);
}

.page-faq .faq-hero__title {
  font-family: var(--font-narrow);
  font-weight: 700;
  font-size: clamp(30px, 5vw, 50px);
  line-height: 1.08;
  letter-spacing: 0.01em;
  color: var(--white);
  margin: 14px 0 18px;
  max-width: 22ch;
}

.page-faq .faq-hero__leadtext {
  color: var(--mist);
  max-width: 50ch;
}

.page-faq .faq-hero__actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 14px;
  margin-top: 26px;
}

.page-faq .faq-hero__panel {
  background: var(--violet);
  border: 1px solid var(--cyan-line);
  border-radius: var(--radius-panel);
  padding: clamp(20px, 3vw, 30px);
}

.page-faq .faq-hero__note {
  margin: 14px 0 0;
  font-size: 13px;
  line-height: 1.7;
  color: var(--mist);
}

.page-faq .faq-catlist {
  list-style: none;
  margin: 16px 0 0;
  padding: 0;
}

.page-faq .faq-catlist__row {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 16px;
  padding: 11px 0;
  border-bottom: 1px solid var(--hairline);
}

.page-faq .faq-catlist__row:last-child {
  border-bottom: 0;
}

.page-faq .faq-catlist__key {
  font-family: var(--font-body);
  font-size: 15px;
  color: var(--white);
}

.page-faq .faq-catlist__val {
  font-family: var(--font-mono);
  font-weight: 800;
  font-size: 18px;
  color: var(--cyan);
  letter-spacing: 0.02em;
}

/* ---------- sections ---------- */
.page-faq .faq-sec {
  padding: clamp(46px, 7vw, 96px) 0;
}

.page-faq .faq-sec--axis {
  background: var(--deep);
  color: var(--white);
}

.page-faq .faq-sec--ios {
  background: var(--violet);
  color: var(--white);
}

.page-faq .faq-sec--member {
  background: var(--night);
  color: var(--white);
}

.page-faq .sec-head--light .sec-head__title {
  color: var(--ink);
}

.page-faq .sec-head--light .sec-head__sub {
  color: #4a5568;
}

.page-faq .faq-hint {
  margin: clamp(24px, 3vw, 36px) 0 0;
  padding-left: var(--faq-num-w);
  font-size: 15px;
  line-height: 1.8;
  color: #3d4757;
  border-left: 2px solid var(--cyan);
}

.page-faq .faq-hint--dark {
  color: var(--mist);
}

/* ---------- axis figure ---------- */
.page-faq .faq-axis-fig {
  margin: clamp(24px, 3.4vw, 42px) 0 clamp(32px, 4.4vw, 56px);
  border-radius: var(--radius-panel);
}

/* ---------- timeline ---------- */
.page-faq .faq-tl {
  position: relative;
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-faq .faq-tl__item {
  position: relative;
  padding: 0 0 34px 40px;
}

.page-faq .faq-tl__item::before {
  content: "";
  position: absolute;
  left: 14px;
  top: 22px;
  bottom: 0;
  width: 2px;
  background: linear-gradient(180deg, var(--cyan), rgba(44, 229, 210, 0.18));
}

.page-faq .faq-tl__item:last-child {
  padding-bottom: 0;
}

.page-faq .faq-tl__item:last-child::before {
  display: none;
}

.page-faq .faq-tl__node {
  position: absolute;
  left: 7px;
  top: 3px;
  width: var(--faq-node);
  height: var(--faq-node);
  border-radius: 50%;
  border: 2px solid var(--cyan);
  background: var(--deep);
  box-shadow: 0 0 0 5px rgba(44, 229, 210, 0.12);
}

.page-faq .faq-tl__stage {
  margin: 0 0 6px;
  font-family: var(--font-mono);
  font-weight: 800;
  font-size: 13px;
  letter-spacing: 0.06em;
  color: var(--orange);
}

.page-faq .faq-tl__title {
  margin: 0 0 10px;
  font-family: var(--font-narrow);
  font-weight: 700;
  font-size: clamp(20px, 2.4vw, 26px);
  line-height: 1.24;
  color: var(--white);
}

.page-faq .faq-tl__text {
  margin: 0 0 12px;
  font-size: 15px;
  line-height: 1.8;
  color: var(--mist);
}

/* ---------- fold ---------- */
.page-faq .faq-fold {
  border-top: 1px solid var(--hairline);
  padding-top: 12px;
}

.page-faq .faq-fold__sum {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-narrow);
  font-weight: 700;
  font-size: 14px;
  letter-spacing: 0.04em;
  color: var(--cyan);
  cursor: pointer;
  list-style: none;
  padding: 4px 0;
}

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

.page-faq .faq-fold__sum::after {
  content: "+";
  font-family: var(--font-mono);
  font-size: 15px;
  line-height: 1;
}

.page-faq .faq-fold[open] .faq-fold__sum::after {
  content: "–";
}

.page-faq .faq-fold__sum:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 3px;
}

.page-faq .faq-steps {
  margin: 14px 0 0;
  padding: 0;
  list-style: none;
  counter-reset: faqstep;
}

.page-faq .faq-steps__item {
  position: relative;
  counter-increment: faqstep;
  padding-left: 34px;
  margin-bottom: 10px;
  font-size: 15px;
  line-height: 1.75;
  color: var(--white);
}

.page-faq .faq-steps__item::before {
  content: counter(faqstep, decimal-leading-zero);
  position: absolute;
  left: 0;
  top: 1px;
  font-family: var(--font-mono);
  font-weight: 800;
  font-size: 13px;
  color: var(--cyan);
}

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

/* ---------- three steps (checkable) ---------- */
.page-faq .faq-steps3 {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(14px, 2vw, 22px);
  margin-top: clamp(24px, 3.4vw, 40px);
}

.page-faq .faq-step {
  display: block;
  position: relative;
  background: var(--mint);
  color: var(--ink);
  border-radius: var(--radius-card);
  border-top: 3px solid var(--orange);
  padding: 24px 22px 24px;
  cursor: pointer;
  transition: border-color var(--t-color) var(--ease), background var(--t-color) var(--ease),
    transform var(--t-move) var(--ease);
}

.page-faq .faq-step:hover {
  border-top-color: var(--cyan);
  transform: translateY(-2px);
}

.page-faq .faq-step:has(.faq-step__check:checked) {
  background: #eafaf7;
  border-top-color: var(--cyan);
}

.page-faq .faq-step__check {
  appearance: none;
  -webkit-appearance: none;
  width: 22px;
  height: 22px;
  margin: 0 10px 0 0;
  vertical-align: -5px;
  border: 2px solid rgba(5, 7, 12, 0.35);
  border-radius: 5px;
  background: transparent;
  cursor: pointer;
  position: relative;
  flex: none;
}

.page-faq .faq-step__check:checked {
  background: var(--cyan);
  border-color: var(--cyan);
}

.page-faq .faq-step__check:checked::after {
  content: "";
  position: absolute;
  left: 5px;
  top: 1px;
  width: 6px;
  height: 11px;
  border: 2px solid var(--night);
  border-top: 0;
  border-left: 0;
  transform: rotate(45deg);
}

.page-faq .faq-step__check:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 3px;
}

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

.page-faq .faq-step__num {
  display: inline-block;
  font-family: var(--font-mono);
  font-weight: 800;
  font-size: 15px;
  color: var(--orange);
  margin-right: 8px;
}

.page-faq .faq-step__title {
  display: inline;
  font-family: var(--font-narrow);
  font-weight: 700;
  font-size: 19px;
  line-height: 1.3;
  color: var(--ink);
}

.page-faq .faq-step__body {
  display: block;
  margin: 12px 0 0 32px;
  font-size: 15px;
  line-height: 1.8;
  color: #2b3441;
}

/* ---------- iOS ---------- */
.page-faq .faq-ios__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(24px, 4vw, 52px);
  margin-top: clamp(24px, 3.4vw, 42px);
}

.page-faq .faq-ios__fig {
  border-radius: var(--radius-panel);
  max-width: 420px;
  margin: 0 auto;
}

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

.page-faq .faq-ios__item {
  position: relative;
  padding: 0 0 24px 46px;
}

.page-faq .faq-ios__item::after {
  content: "";
  position: absolute;
  left: 17px;
  top: 40px;
  bottom: 0;
  width: 2px;
  background: rgba(44, 229, 210, 0.24);
}

.page-faq .faq-ios__item:last-child {
  padding-bottom: 0;
}

.page-faq .faq-ios__item:last-child::after {
  display: none;
}

.page-faq .faq-ios__no {
  position: absolute;
  left: 0;
  top: 0;
  width: 34px;
  height: 34px;
  display: grid;
  place-items: center;
  border-radius: 50%;
  border: 2px solid var(--cyan);
  background: var(--violet);
  font-family: var(--font-mono);
  font-weight: 800;
  font-size: 14px;
  color: var(--cyan);
}

.page-faq .faq-ios__h {
  margin: 4px 0 8px;
  font-family: var(--font-narrow);
  font-weight: 700;
  font-size: 19px;
  line-height: 1.3;
  color: var(--white);
}

.page-faq .faq-ios__item p {
  margin: 0;
  font-size: 15px;
  line-height: 1.8;
  color: var(--mist);
}

.page-faq .faq-ios__note {
  margin-top: clamp(24px, 3vw, 34px);
  padding: 20px 22px;
  border-left: 3px solid var(--orange);
  background: rgba(255, 106, 43, 0.08);
  border-radius: 0 var(--radius-card) var(--radius-card) 0;
}

.page-faq .faq-ios__note p {
  margin: 0 0 8px;
  font-size: 15px;
  line-height: 1.8;
  color: var(--white);
}

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

.page-faq .faq-ios__note .link {
  color: var(--cyan);
}

/* ---------- refresh ---------- */
.page-faq .faq-refresh {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(20px, 3vw, 34px);
  margin-top: clamp(24px, 3.4vw, 40px);
}

.page-faq .faq-refresh__tag {
  background: var(--night);
  color: var(--white);
  border-radius: var(--radius-panel);
  padding: 24px 22px;
}

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

.page-faq .faq-refresh__list {
  border-top: 1px solid rgba(5, 7, 12, 0.12);
}

.page-faq .faq-refresh__list .data-list__row {
  border-bottom: 1px solid rgba(5, 7, 12, 0.12);
  padding: 13px 0;
  display: flex;
  flex-wrap: wrap;
  gap: 6px 16px;
  justify-content: space-between;
  align-items: baseline;
}

.page-faq .faq-refresh__list .data-list__key {
  font-family: var(--font-narrow);
  font-weight: 700;
  font-size: 14px;
  letter-spacing: 0.04em;
  color: #4a5568;
}

.page-faq .faq-refresh__list .data-list__val {
  font-family: var(--font-mono);
  font-weight: 800;
  font-size: 15px;
  color: var(--ink);
  text-align: right;
}

.page-faq .faq-refresh__body p {
  margin: 0 0 14px;
  font-size: 16px;
  line-height: 1.85;
  color: #2b3441;
}

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

/* ---------- member tiers ---------- */
.page-faq .faq-member__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(14px, 2vw, 22px);
  margin-top: clamp(24px, 3.4vw, 40px);
}

.page-faq .faq-tier {
  background: var(--violet);
  border: 1px solid var(--hairline);
  border-radius: var(--radius-card);
  border-top: 3px solid var(--mist);
  padding: 24px 22px;
  transition: border-color var(--t-color) var(--ease), transform var(--t-move) var(--ease);
}

.page-faq .faq-tier:hover {
  border-top-color: var(--cyan);
  transform: translateY(-2px);
}

.page-faq .faq-tier--mid {
  border-top-color: var(--cyan);
}

.page-faq .faq-tier--top {
  border-top-color: var(--orange);
}

.page-faq .faq-tier__name {
  margin: 0 0 4px;
  font-family: var(--font-narrow);
  font-weight: 700;
  font-size: 21px;
  color: var(--white);
}

.page-faq .faq-tier__scope {
  margin: 0 0 16px;
  font-family: var(--font-mono);
  font-weight: 800;
  font-size: 13px;
  letter-spacing: 0.05em;
  color: var(--signal);
}

.page-faq .faq-tier__list {
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-faq .faq-tier__list li {
  position: relative;
  padding-left: 18px;
  margin-bottom: 9px;
  font-size: 15px;
  line-height: 1.7;
  color: var(--mist);
}

.page-faq .faq-tier__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 9px;
  width: 8px;
  height: 2px;
  background: var(--cyan);
}

.page-faq .faq-tier__list li:last-child {
  margin-bottom: 0;
}

/* ---------- Q&A ---------- */
.page-faq .faq-qa {
  margin-top: clamp(24px, 3.4vw, 40px);
  border-top: 1px solid rgba(5, 7, 12, 0.14);
}

.page-faq .faq-qa__item {
  border-bottom: 1px solid rgba(5, 7, 12, 0.14);
}

.page-faq .faq-qa__sum {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  padding: 20px 0;
  font-family: var(--font-narrow);
  font-weight: 700;
  font-size: 18px;
  line-height: 1.35;
  color: var(--ink);
  cursor: pointer;
  list-style: none;
  transition: color var(--t-color) var(--ease);
}

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

.page-faq .faq-qa__sum::after {
  content: "+";
  flex: none;
  font-family: var(--font-mono);
  font-weight: 800;
  font-size: 18px;
  color: var(--orange);
}

.page-faq .faq-qa__item[open] .faq-qa__sum::after {
  content: "–";
  color: var(--deep);
}

.page-faq .faq-qa__sum:hover {
  color: var(--deep);
}

.page-faq .faq-qa__sum:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 3px;
}

.page-faq .faq-qa__body {
  padding: 0 0 22px;
  max-width: 68ch;
}

.page-faq .faq-qa__body p {
  margin: 0;
  font-size: 15px;
  line-height: 1.85;
  color: #2b3441;
}

/* ---------- end block ---------- */
.page-faq .faq-end {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 20px;
  align-items: center;
  margin-top: clamp(34px, 4.4vw, 56px);
  padding: clamp(24px, 3.2vw, 36px);
  background: var(--deep);
  border-radius: var(--radius-panel);
}

.page-faq .faq-end__text {
  margin: 0;
  font-size: 16px;
  line-height: 1.8;
  color: var(--white);
  max-width: 52ch;
}

.page-faq .faq-end__links {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

/* ---------- responsive ---------- */
@media (min-width: 720px) {
  .page-faq .faq-steps3 {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

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

  .page-faq .faq-refresh {
    grid-template-columns: minmax(0, 4fr) minmax(0, 5fr);
    align-items: start;
  }

  .page-faq .faq-refresh__body {
    grid-column: 1 / -1;
    max-width: 74ch;
  }

  .page-faq .faq-end {
    grid-template-columns: minmax(0, 1fr) auto;
  }
}

@media (min-width: 900px) {
  .page-faq .faq-hero__grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    gap: clamp(28px, 4vw, 60px);
    align-items: start;
  }

  .page-faq .faq-ios__grid {
    grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
    gap: clamp(30px, 4.4vw, 64px);
    align-items: center;
  }

  .page-faq .faq-ios__fig {
    margin: 0;
    max-width: none;
  }

  /* timeline becomes a centred axis with alternating sides */
  .page-faq .faq-tl::before {
    content: "";
    position: absolute;
    left: 50%;
    top: 6px;
    bottom: 6px;
    width: 2px;
    transform: translateX(-1px);
    background: linear-gradient(180deg, var(--cyan), rgba(44, 229, 210, 0.14) 78%, transparent);
  }

  .page-faq .faq-tl__item {
    width: calc(50% - 44px);
    padding: 0 0 46px 0;
  }

  .page-faq .faq-tl__item::before {
    display: none;
  }

  .page-faq .faq-tl__item:nth-child(even) {
    margin-left: calc(50% + 44px);
  }

  .page-faq .faq-tl__item:last-child {
    padding-bottom: 0;
  }

  .page-faq .faq-tl__node {
    top: 4px;
  }

  .page-faq .faq-tl__item:nth-child(odd) .faq-tl__node {
    left: auto;
    right: -52px;
  }

  .page-faq .faq-tl__item:nth-child(even) .faq-tl__node {
    left: -52px;
    right: auto;
  }

  .page-faq .faq-tl__item:nth-child(odd) .faq-tl__title,
  .page-faq .faq-tl__item:nth-child(odd) .faq-tl__stage {
    text-align: left;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-step,
  .page-faq .faq-tier {
    transition: none;
  }

  .page-faq .faq-step:hover,
  .page-faq .faq-tier:hover {
    transform: none;
  }
}