.page-faq {
  --faq-gap: clamp(32px, 6vw, 88px);
  background: var(--ink);
  color: var(--fog);
  font-family: var(--font-display);
  overflow-x: clip;
  padding-bottom: clamp(48px, 9vw, 104px);
}

.page-faq .faq-wrap {
  width: 100%;
  max-width: var(--shell);
  margin-inline: auto;
  padding-inline: var(--gutter);
}

.page-faq .breadcrumb {
  padding-top: clamp(16px, 3vw, 28px);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .06em;
}

/* ---------- hero ---------- */
.page-faq .faq-hero {
  position: relative;
  padding: clamp(20px, 4vw, 36px) 0 clamp(26px, 5vw, 52px);
  border-bottom: 1px solid var(--line-soft);
}

.page-faq .faq-hero::before {
  content: "";
  position: absolute;
  top: -30%;
  right: -18%;
  width: min(520px, 70vw);
  height: 320px;
  background: radial-gradient(58% 60% at 50% 50%, rgba(0, 229, 160, .17), transparent 72%);
  pointer-events: none;
}

.page-faq .faq-hero::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -1px;
  width: clamp(72px, 16vw, 180px);
  height: 3px;
  background: var(--amber);
  transform: skewX(-24deg);
  transform-origin: left bottom;
}

.page-faq .eyebrow {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--mint);
  margin: 0 0 14px;
}

.page-faq .faq-hero__title {
  position: relative;
  margin: 0 0 18px;
  font-size: clamp(30px, 6.4vw, 58px);
  line-height: 1.1;
  letter-spacing: -.03em;
  font-weight: 800;
  color: var(--fog);
  max-width: 18em;
}

.page-faq .faq-hero__lead {
  margin: 0 0 26px;
  max-width: 60ch;
  font-size: clamp(15px, 2vw, 17px);
  line-height: 1.75;
  color: var(--muted);
}

.page-faq .faq-jump {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-faq .faq-jump__item {
  display: inline-block;
  padding: 8px 14px;
  border: 1px solid var(--line);
  border-radius: 2px;
  background: var(--ink-2);
  color: var(--fog);
  font-size: 13px;
  letter-spacing: .02em;
  text-decoration: none;
  transition: border-color var(--dur) var(--ease), color var(--dur) var(--ease), background var(--dur) var(--ease);
}

.page-faq .faq-jump__item:hover,
.page-faq .faq-jump__item:focus-visible {
  border-color: var(--mint);
  color: var(--mint);
  background: rgba(0, 229, 160, .07);
}

/* ---------- shell ---------- */
.page-faq .faq-shell {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--faq-gap);
  padding-top: clamp(30px, 5vw, 56px);
}

.page-faq .faq-index {
  display: none;
}

.page-faq .faq-body {
  display: flex;
  flex-direction: column;
  gap: var(--faq-gap);
  min-width: 0;
}

/* ---------- block ---------- */
.page-faq .faq-block {
  scroll-margin-top: 96px;
  min-width: 0;
}

.page-faq .faq-block__head {
  margin-bottom: clamp(18px, 3vw, 30px);
  border-left: 2px solid var(--mint);
  padding-left: clamp(14px, 2.4vw, 22px);
}

.page-faq .faq-block__title {
  margin: 0 0 10px;
  font-size: clamp(22px, 3.6vw, 34px);
  line-height: 1.22;
  letter-spacing: -.025em;
  font-weight: 800;
  color: var(--fog);
}

.page-faq .faq-block__note {
  margin: 0;
  font-size: 14px;
  line-height: 1.75;
  color: var(--muted);
  max-width: 52ch;
}

/* ---------- accordion ---------- */
.page-faq .faq-qa {
  border-top: 1px solid var(--line-soft);
}

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

.page-faq .faq-qa__item[open] {
  background: linear-gradient(90deg, rgba(0, 229, 160, .06), transparent 62%);
}

.page-faq .faq-qa__q {
  display: flex;
  align-items: baseline;
  gap: 14px;
  padding: 16px 34px 16px 4px;
  cursor: pointer;
  list-style: none;
  position: relative;
  font-size: clamp(15px, 2.2vw, 17px);
  font-weight: 700;
  line-height: 1.5;
  color: var(--fog);
}

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

.page-faq .faq-qa__q::after {
  content: "+";
  position: absolute;
  right: 6px;
  top: 14px;
  font-family: var(--font-mono);
  font-size: 18px;
  color: var(--mint);
  transition: transform var(--dur) var(--ease);
}

.page-faq .faq-qa__item[open] .faq-qa__q::after {
  transform: rotate(45deg);
}

.page-faq .faq-qa__q:focus-visible {
  outline: 2px solid var(--mint);
  outline-offset: 2px;
  border-radius: 2px;
}

.page-faq .faq-qa__num {
  flex: 0 0 auto;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .08em;
  color: var(--muted);
}

.page-faq .faq-qa__item[open] .faq-qa__num {
  color: var(--mint);
}

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

.page-faq .faq-qa__a {
  padding: 0 4px 20px 4px;
}

.page-faq .faq-qa__a p {
  margin: 0;
  font-size: 14px;
  line-height: 1.8;
  color: var(--muted);
  max-width: 62ch;
}

.page-faq .faq-qa__a a {
  color: var(--mint);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.page-faq .faq-qa__a a:focus-visible {
  outline: 2px solid var(--mint);
  outline-offset: 2px;
}

/* ---------- adaptation matrix ---------- */
.page-faq .faq-figure {
  margin: 0 0 clamp(20px, 3.4vw, 32px);
}

.page-faq .faq-figure img,
.page-faq .faq-contact__figure img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.page-faq .faq-matrix {
  display: grid;
  grid-template-columns: 1fr;
  gap: 12px;
}

.page-faq .faq-matrix__cell {
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding: 18px 16px;
  border: 1px solid var(--line);
  border-radius: 3px;
  background: var(--ink-2);
  box-shadow: var(--shadow-card);
  transition: transform var(--dur) var(--ease), border-color var(--dur) var(--ease);
}

.page-faq .faq-matrix__cell:hover,
.page-faq .faq-matrix__cell:focus-visible,
.page-faq .faq-matrix__cell:focus-within {
  transform: translateY(-2px);
  border-color: rgba(0, 229, 160, .55);
  outline: none;
}

.page-faq .faq-matrix__cell:focus-visible {
  outline: 2px solid var(--mint);
  outline-offset: 2px;
}

.page-faq .faq-matrix__icon {
  color: var(--mint);
  line-height: 0;
}

.page-faq .faq-matrix__cell:nth-child(2) .faq-matrix__icon {
  color: var(--violet);
}

.page-faq .faq-matrix__name {
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: .04em;
  color: var(--fog);
}

.page-faq .faq-matrix__text {
  font-size: 13.5px;
  line-height: 1.7;
  color: var(--muted);
}

.page-faq .faq-matrix__hint {
  margin-top: auto;
  padding-top: 8px;
  border-top: 1px solid var(--line-soft);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .06em;
  color: var(--muted);
  transition: color var(--dur) var(--ease);
}

.page-faq .faq-matrix__cell:hover .faq-matrix__hint,
.page-faq .faq-matrix__cell:focus-visible .faq-matrix__hint {
  color: var(--mint);
}

/* ---------- steps ---------- */
.page-faq .faq-steps {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  grid-template-columns: 1fr;
  gap: 14px;
  counter-reset: none;
}

.page-faq .faq-step {
  position: relative;
  padding: 20px 18px 20px 18px;
  border: 1px solid var(--line);
  border-left: 2px solid var(--mint);
  border-radius: 0 3px 3px 0;
  background: var(--ink-2);
}

.page-faq .faq-step__num {
  display: block;
  font-family: var(--font-mono);
  font-size: 26px;
  line-height: 1;
  letter-spacing: .02em;
  color: rgba(0, 229, 160, .5);
  margin-bottom: 10px;
}

.page-faq .faq-step__title {
  margin: 0 0 8px;
  font-size: 16px;
  font-weight: 700;
  letter-spacing: -.01em;
  color: var(--fog);
}

.page-faq .faq-step__text {
  margin: 0;
  font-size: 13.5px;
  line-height: 1.78;
  color: var(--muted);
}

.page-faq .faq-steps__foot {
  margin: 18px 0 0;
  font-size: 13px;
  line-height: 1.8;
  color: var(--muted);
}

.page-faq .faq-steps__foot a {
  color: var(--mint);
  text-decoration: underline;
  text-underline-offset: 3px;
}

/* ---------- contact ---------- */
.page-faq .faq-block--contact {
  border-top: 1px solid var(--line-soft);
  padding-top: clamp(26px, 4vw, 44px);
}

.page-faq .faq-contact {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(22px, 4vw, 40px);
  align-items: start;
}

.page-faq .faq-contact__lead {
  margin: 0 0 22px;
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--muted);
  max-width: 56ch;
}

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

.page-faq .faq-contact__row {
  display: grid;
  grid-template-columns: 62px 1fr;
  gap: 12px;
  padding: 12px 0;
  border-bottom: 1px solid var(--line-soft);
  align-items: baseline;
}

.page-faq .faq-contact__key {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: var(--muted);
}

.page-faq .faq-contact__value {
  font-size: 14px;
  line-height: 1.7;
  color: var(--fog);
  text-decoration: none;
  word-break: break-word;
}

.page-faq a.faq-contact__value:hover,
.page-faq a.faq-contact__value:focus-visible {
  color: var(--amber);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.page-faq a.faq-contact__value:focus-visible {
  outline: 2px solid var(--mint);
  outline-offset: 3px;
}

.page-faq .faq-contact__note {
  margin: 16px 0 22px;
  font-size: 13px;
  line-height: 1.8;
  color: var(--muted);
  border-left: 2px solid var(--amber-deep);
  padding-left: 12px;
}

.page-faq .faq-contact__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

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

/* ---------- round timeline ---------- */
.page-faq .faq-timeline {
  margin: 0;
  padding: 0 0 0 18px;
  list-style: none;
  border-left: 1px solid var(--line);
}

.page-faq .faq-timeline__item {
  position: relative;
  padding: 0 0 22px 16px;
}

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

.page-faq .faq-timeline__item::before {
  content: "";
  position: absolute;
  left: -23px;
  top: 6px;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--mint);
  box-shadow: 0 0 0 3px rgba(0, 229, 160, .14);
}

.page-faq .faq-timeline__mark {
  display: inline-block;
  margin-bottom: 6px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .08em;
  color: var(--mint);
}

.page-faq .faq-timeline__text {
  margin: 0;
  font-size: 13.5px;
  line-height: 1.78;
  color: var(--muted);
  max-width: 58ch;
}

.page-faq .faq-round-cta {
  margin-top: clamp(22px, 4vw, 34px);
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px 18px;
  padding: 20px 18px;
  border: 1px solid var(--line);
  border-radius: 3px;
  background: linear-gradient(100deg, var(--mint-deep), var(--ink-2) 68%);
}

.page-faq .faq-round-cta__text {
  flex: 1 1 240px;
  margin: 0;
  font-size: 14px;
  line-height: 1.7;
  color: var(--fog);
}

.page-faq .faq-round-cta__link {
  font-size: 13px;
  color: var(--muted);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.page-faq .faq-round-cta__link:hover,
.page-faq .faq-round-cta__link:focus-visible {
  color: var(--mint);
}

/* ---------- reveal ---------- */
.page-faq .js-reveal .faq-block {
  opacity: 0;
  transform: translateY(14px);
  transition: opacity 420ms var(--ease), transform 420ms var(--ease);
}

.page-faq .js-reveal .faq-block.is-revealed {
  opacity: 1;
  transform: none;
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .js-reveal .faq-block {
    opacity: 1;
    transform: none;
    transition: none;
  }
  .page-faq .faq-matrix__cell:hover,
  .page-faq .faq-matrix__cell:focus-visible {
    transform: none;
  }
}

/* ---------- 640+ ---------- */
@media (min-width: 640px) {
  .page-faq .faq-matrix {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 14px;
  }

  .page-faq .faq-steps {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 12px;
  }

  .page-faq .faq-contact__row {
    grid-template-columns: 72px 1fr;
  }

  .page-faq .faq-jump__item {
    padding: 9px 18px;
  }
}

/* ---------- 1024+ ---------- */
@media (min-width: 1024px) {
  .page-faq .faq-shell {
    grid-template-columns: 210px minmax(0, 1fr);
    gap: clamp(36px, 4.5vw, 76px);
    align-items: start;
  }

  .page-faq .faq-index {
    display: block;
    position: sticky;
    top: 104px;
    border-top: 1px solid var(--line);
    padding-top: 16px;
  }

  .page-faq .faq-index__title {
    margin: 0 0 14px;
    font-family: var(--font-mono);
    font-size: 11px;
    letter-spacing: .14em;
    text-transform: uppercase;
    color: var(--muted);
  }

  .page-faq .faq-index__list {
    margin: 0;
    padding: 0;
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 2px;
  }

  .page-faq .faq-index__link {
    display: block;
    padding: 8px 0 8px 12px;
    border-left: 1px solid var(--line-soft);
    font-size: 13.5px;
    line-height: 1.5;
    color: var(--muted);
    text-decoration: none;
    transition: color var(--dur) var(--ease), border-color var(--dur) var(--ease), padding-left var(--dur) var(--ease);
  }

  .page-faq .faq-index__link:hover,
  .page-faq .faq-index__link:focus-visible {
    color: var(--fog);
    border-left-color: var(--mint);
    padding-left: 16px;
  }

  .page-faq .faq-index__link:focus-visible {
    outline: 2px solid var(--mint);
    outline-offset: 2px;
  }

  .page-faq .faq-index__foot {
    margin: 18px 0 0;
    padding-top: 12px;
    border-top: 1px solid var(--line-soft);
    font-family: var(--font-mono);
    font-size: 11px;
    letter-spacing: .04em;
    color: var(--muted);
  }

  .page-faq .faq-qa__q {
    padding-right: 48px;
  }

  /* 错位卡片：让问答墙有展签的手工感 */
  .page-faq .faq-qa__item:nth-child(3n+2) {
    margin-inline-start: clamp(12px, 2.4vw, 34px);
    border-left: 1px solid var(--line-soft);
    padding-left: 18px;
  }

  .page-faq .faq-matrix {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .page-faq .faq-contact {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, .85fr);
    gap: clamp(28px, 4vw, 56px);
  }

  .page-faq .faq-contact__figure {
    position: sticky;
    top: 104px;
  }
}