.page-faq{
  --faq-gap: clamp(44px, 7vw, 84px);
  --faq-rail: 40px;
}

.page-faq a{
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid var(--cyan-line);
  transition: color .2s var(--ease), border-color .2s var(--ease);
}

.page-faq a:hover{
  color: var(--white);
  border-bottom-color: var(--white);
}

.page-faq a:focus-visible{
  outline: 2px solid var(--cyan);
  outline-offset: 3px;
  border-radius: 4px;
}

/* ---------- hero ---------- */

.page-faq .faq-hero{
  padding: clamp(18px, 4vw, 34px) 0 clamp(30px, 5vw, 56px);
}

.page-faq .faq-hero__grid{
  display: grid;
  gap: clamp(20px, 4vw, 40px);
}

.page-faq .faq-title{
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(1.8rem, 5.6vw, 3.35rem);
  line-height: 1.12;
  letter-spacing: -.02em;
  color: var(--white);
  margin: 12px 0 18px;
}

.page-faq .faq-title .accent{
  color: var(--cyan);
}

.page-faq .faq-lede{
  margin: 0;
  max-width: 62ch;
  color: var(--mist);
  font-size: clamp(.97rem, 1.7vw, 1.06rem);
  line-height: 1.88;
}

.page-faq .faq-hero__meta{
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 22px;
}

/* ---------- quick card ---------- */

.page-faq .quick-card{
  position: relative;
  overflow: hidden;
  background: var(--cabin);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  padding: 16px clamp(14px, 3vw, 20px) 18px;
}

.page-faq .quick-card::before{
  content: "";
  position: absolute;
  top: -70px;
  right: -60px;
  width: 190px;
  height: 190px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(34,240,211,.24), transparent 70%);
  pointer-events: none;
}

.page-faq .quick-card__title{
  position: relative;
  margin: 0 0 8px;
  font-family: var(--font-mono);
  font-size: .76rem;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--orange);
}

.page-faq .quick-list{
  position: relative;
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-faq .quick-list li + li{
  border-top: 1px solid var(--line-soft);
}

.page-faq .quick-list a{
  display: flex;
  align-items: baseline;
  gap: 12px;
  padding: 11px 4px;
  font-size: .94rem;
  color: var(--white);
  border-bottom: 0;
}

.page-faq .quick-list a:hover{
  color: var(--cyan);
}

.page-faq .quick-list .num{
  flex: none;
  font-family: var(--font-mono);
  font-size: .76rem;
  color: var(--sage);
}

/* ---------- blocks ---------- */

.page-faq .faq-block{
  padding-block: var(--faq-gap);
  border-top: 1px solid var(--line-soft);
  scroll-margin-top: 96px;
}

.page-faq .block-head{
  display: grid;
  gap: 12px;
  margin-bottom: clamp(22px, 3.4vw, 34px);
}

.page-faq .block-head__num{
  margin: 0;
  font-family: var(--font-mono);
  font-size: .78rem;
  letter-spacing: .18em;
  color: var(--orange);
}

.page-faq .block-head h2{
  margin: 0;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(1.35rem, 3.6vw, 2.1rem);
  line-height: 1.24;
  letter-spacing: -.015em;
  color: var(--white);
}

.page-faq .block-head p{
  margin: 0;
  max-width: 72ch;
  color: var(--mist);
  line-height: 1.85;
  font-size: .97rem;
}

/* ---------- trace steps ---------- */

.page-faq .trace{
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 18px;
}

.page-faq .hstep{
  position: relative;
  display: grid;
  grid-template-columns: var(--faq-rail) minmax(0, 1fr);
  gap: 12px;
}

.page-faq .hstep::before{
  content: "";
  position: absolute;
  left: calc(var(--faq-rail) / 2 - .5px);
  top: calc(var(--faq-rail) + 8px);
  bottom: -18px;
  width: 1px;
  background: linear-gradient(var(--line-strong), var(--line-soft));
}

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

.page-faq .hstep__num{
  display: grid;
  place-items: center;
  width: var(--faq-rail);
  height: var(--faq-rail);
  border-radius: 50%;
  background: var(--cabin);
  border: 1px solid var(--cyan-line);
  color: var(--cyan);
  font-family: var(--font-mono);
  font-size: .82rem;
  font-weight: 700;
  transition: background .25s var(--ease), color .25s var(--ease), border-color .25s var(--ease);
}

.page-faq .hstep__body{
  position: relative;
  background: var(--cabin);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 16px clamp(14px, 3vw, 22px) 18px;
  transition: background .25s var(--ease), border-color .25s var(--ease);
}

.page-faq .hstep__head{
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  margin-bottom: 6px;
}

.page-faq .hstep__head h3{
  margin: 0;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(1rem, 2.2vw, 1.22rem);
  letter-spacing: -.01em;
  color: var(--white);
}

.page-faq .checklist{
  list-style: none;
  margin: 10px 0 0;
  padding: 0;
  display: grid;
  gap: 7px;
}

.page-faq .checklist li{
  position: relative;
  padding-left: 18px;
  color: var(--mist);
  font-size: .93rem;
  line-height: 1.72;
}

.page-faq .checklist li::before{
  content: "";
  position: absolute;
  left: 0;
  top: .62em;
  width: 7px;
  height: 7px;
  border-radius: 2px;
  background: var(--sage);
}

.page-faq .checklist li a{
  border-bottom-color: var(--cyan-line);
}

.page-faq .hstep__judge{
  margin: 14px 0 0;
  padding-left: 11px;
  border-left: 2px solid var(--sage);
  color: var(--mist);
  font-size: .89rem;
  line-height: 1.72;
}

/* step checkbox */

.page-faq .hstep__check{
  position: absolute;
  width: 1px;
  height: 1px;
  margin: -1px;
  padding: 0;
  overflow: hidden;
  clip: rect(0 0 0 0);
  clip-path: inset(50%);
  white-space: nowrap;
  border: 0;
}

.page-faq .hstep__check-label{
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-top: 15px;
  padding: 6px 13px;
  border: 1px solid var(--line-strong);
  border-radius: 999px;
  font-family: var(--font-mono);
  font-size: .76rem;
  letter-spacing: .04em;
  color: var(--mist);
  cursor: pointer;
  transition: color .2s var(--ease), border-color .2s var(--ease), background .2s var(--ease);
}

.page-faq .hstep__check-label:hover{
  color: var(--white);
  border-color: var(--cyan-line);
}

.page-faq .hstep__check-box{
  display: grid;
  place-items: center;
  width: 13px;
  height: 13px;
  border: 1px solid var(--line-strong);
  border-radius: 3px;
  font-size: 9px;
  line-height: 1;
  transition: background .2s var(--ease), border-color .2s var(--ease);
}

.page-faq .hstep__check-box::after{
  content: "✓";
  color: var(--ink);
  opacity: 0;
}

.page-faq .hstep__check-done{
  display: none;
}

.page-faq .hstep__check:checked + .hstep__check-label{
  color: var(--cyan);
  border-color: var(--cyan-line);
  background: rgba(34,240,211,.09);
}

.page-faq .hstep__check:checked + .hstep__check-label .hstep__check-box{
  background: var(--cyan);
  border-color: var(--cyan);
}

.page-faq .hstep__check:checked + .hstep__check-label .hstep__check-box::after{
  opacity: 1;
}

.page-faq .hstep__check:checked + .hstep__check-label .hstep__check-todo{
  display: none;
}

.page-faq .hstep__check:checked + .hstep__check-label .hstep__check-done{
  display: inline;
}

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

.page-faq .hstep:has(.hstep__check:checked) .hstep__body{
  border-color: var(--cyan-line);
  background: var(--cabin-2);
}

.page-faq .hstep:has(.hstep__check:checked) .hstep__num{
  background: var(--cyan);
  border-color: var(--cyan);
  color: var(--ink);
}

/* ---------- figures ---------- */

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

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

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

/* ---------- cache block ---------- */

.page-faq .cache-split{
  display: grid;
  gap: clamp(18px, 3vw, 32px);
}

.page-faq .paper-card{
  background: var(--paper);
  color: var(--paper-ink);
  border-radius: var(--radius-paper);
  padding: clamp(18px, 3.6vw, 32px);
}

.page-faq .paper-card__kicker{
  margin: 0 0 14px;
  font-family: var(--font-mono);
  font-size: .74rem;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--paper-ink);
  opacity: .72;
}

.page-faq .flow{
  list-style: none;
  counter-reset: flow;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 16px;
}

.page-faq .flow li{
  position: relative;
  counter-increment: flow;
  padding-left: 40px;
}

.page-faq .flow li::before{
  content: counter(flow, decimal-leading-zero);
  position: absolute;
  left: 0;
  top: 1px;
  display: grid;
  place-items: center;
  width: 27px;
  height: 27px;
  border-radius: 8px;
  background: var(--orange);
  color: #122233;
  font-family: var(--font-mono);
  font-size: .73rem;
  font-weight: 700;
}

.page-faq .flow strong{
  display: block;
  font-size: 1rem;
  letter-spacing: -.01em;
  margin-bottom: 4px;
}

.page-faq .flow p{
  margin: 0;
  font-size: .91rem;
  line-height: 1.78;
  color: var(--paper-ink);
  opacity: .82;
}

/* ---------- system grid ---------- */

.page-faq .sys-grid{
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(158px, 1fr));
  gap: 12px;
}

.page-faq .sys-card{
  background: var(--panel-bg, var(--cabin));
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 16px clamp(13px, 2.6vw, 18px) 18px;
  display: grid;
  align-content: start;
  gap: 6px;
}

.page-faq .sys-card__name{
  margin: 0;
  font-family: var(--font-mono);
  font-size: .74rem;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--sage);
}

.page-faq .sys-card__ver{
  margin: 0;
  font-family: var(--font-mono);
  font-size: clamp(1.15rem, 3vw, 1.45rem);
  font-weight: 700;
  color: var(--cyan);
  letter-spacing: -.01em;
}

.page-faq .sys-card__note{
  margin: 0;
  color: var(--mist);
  font-size: .88rem;
  line-height: 1.75;
}

.page-faq .sys-card--wide{
  grid-column: 1 / -1;
  border-color: var(--cyan-line);
  background: var(--cabin-2);
}

.page-faq .sys-foot{
  margin: 18px 0 0;
  padding-left: 12px;
  border-left: 2px solid var(--orange);
  color: var(--mist);
  font-size: .9rem;
  line-height: 1.8;
}

/* ---------- qa ---------- */

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

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

.page-faq .qa summary{
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  padding: 15px 2px;
  cursor: pointer;
  list-style: none;
  color: var(--white);
  font-size: clamp(.95rem, 1.8vw, 1.02rem);
  font-weight: 600;
  transition: color .2s var(--ease);
}

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

.page-faq .qa summary::after{
  content: "+";
  flex: none;
  display: grid;
  place-items: center;
  width: 24px;
  height: 24px;
  border: 1px solid var(--line-strong);
  border-radius: 50%;
  font-family: var(--font-mono);
  font-size: .85rem;
  color: var(--cyan);
  transition: background .2s var(--ease), border-color .2s var(--ease);
}

.page-faq .qa[open] summary::after{
  content: "–";
  background: rgba(34,240,211,.12);
  border-color: var(--cyan-line);
}

.page-faq .qa summary:hover{
  color: var(--cyan);
}

.page-faq .qa summary:focus-visible{
  outline: 2px solid var(--cyan);
  outline-offset: 2px;
  border-radius: 6px;
}

.page-faq .qa__body{
  padding: 0 2px 18px;
  color: var(--mist);
  font-size: .93rem;
  line-height: 1.86;
}

.page-faq .qa__body p{
  margin: 0;
  max-width: 78ch;
}

/* ---------- support ---------- */

.page-faq .support-split{
  display: grid;
  gap: clamp(16px, 3vw, 26px);
}

.page-faq .support-list-card{
  background: var(--cabin);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  padding: clamp(16px, 3vw, 26px);
}

.page-faq .support-list{
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 16px;
}

.page-faq .support-list li{
  display: grid;
  grid-template-columns: 26px minmax(0, 1fr);
  gap: 12px;
  align-items: start;
}

.page-faq .support-list__k{
  font-family: var(--font-mono);
  font-size: .78rem;
  color: var(--orange);
  padding-top: 3px;
}

.page-faq .support-list strong{
  display: block;
  color: var(--white);
  font-size: .99rem;
  margin-bottom: 3px;
}

.page-faq .support-list p{
  margin: 0;
  color: var(--mist);
  font-size: .88rem;
  line-height: 1.72;
}

.page-faq .copy-row{
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  margin-top: 20px;
  padding-top: 16px;
  border-top: 1px solid var(--line-soft);
}

.page-faq .copy-row__status{
  font-family: var(--font-mono);
  font-size: .76rem;
  color: var(--cyan);
}

.page-faq .support-card{
  background: var(--panel-bg, var(--cabin-2));
  border: 1px solid var(--cyan-line);
  border-radius: var(--radius-lg);
  padding: clamp(16px, 3vw, 26px);
}

.page-faq .support-card__kicker{
  margin: 0 0 10px;
  font-family: var(--font-mono);
  font-size: .74rem;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--orange);
}

.page-faq .support-card__lead{
  margin: 0 0 16px;
  color: var(--mist);
  font-size: .9rem;
  line-height: 1.78;
}

.page-faq .support-lines{
  margin: 0;
  display: grid;
  gap: 12px;
}

.page-faq .support-line{
  display: grid;
  gap: 2px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--line-soft);
}

.page-faq .support-line:last-child{
  border-bottom: 0;
  padding-bottom: 0;
}

.page-faq .support-line dt{
  font-family: var(--font-mono);
  font-size: .73rem;
  letter-spacing: .1em;
  color: var(--sage);
}

.page-faq .support-line dd{
  margin: 0;
  color: var(--white);
  font-size: .95rem;
  line-height: 1.6;
  word-break: break-word;
}

.page-faq .support-line dd.num{
  font-family: var(--font-mono);
  letter-spacing: .01em;
}

.page-faq .support-card__foot{
  margin: 16px 0 0;
  color: var(--mist);
  font-size: .86rem;
  line-height: 1.7;
}

/* ---------- responsive ---------- */

@media (min-width: 760px){
  .page-faq{
    --faq-rail: 54px;
  }

  .page-faq .hstep{
    gap: 18px;
  }

  .page-faq .hstep__num{
    font-size: .9rem;
  }
}

@media (min-width: 900px){
  .page-faq .faq-hero__grid{
    grid-template-columns: minmax(0, 1.6fr) minmax(0, .85fr);
    align-items: end;
  }

  .page-faq .cache-split{
    grid-template-columns: minmax(0, 1.15fr) minmax(0, .85fr);
    align-items: start;
  }

  .page-faq .support-split{
    grid-template-columns: minmax(0, 1.05fr) minmax(0, .95fr);
    align-items: start;
  }

  .page-faq .faq-figure{
    margin-top: clamp(30px, 4vw, 44px);
  }
}

@media (min-width: 1080px){
  .page-faq .qa summary{
    padding: 17px 4px;
  }

  .page-faq .hstep__body{
    padding: 20px 26px 22px;
  }
}

@media (prefers-reduced-motion: reduce){
  .page-faq *{
    transition-duration: .01ms !important;
    animation-duration: .01ms !important;
  }
}
<<<END>>>

.page-faq {
  --panel-bg: transparent;
}