.page-faq {
  --faq-index-w: 252px;
  --faq-gap: clamp(24px, 4vw, 56px);
  --faq-sticky: 104px;
  --faq-line: rgba(69, 224, 190, .16);
  --faq-line-soft: rgba(243, 239, 228, .1);
  --faq-panel: rgba(7, 23, 19, .55);
  display: block;
}

/* ---------- 页头 ---------- */
.page-faq .faq-head {
  position: relative;
  overflow: hidden;
  padding-block: clamp(20px, 3vw, 36px) clamp(28px, 4vw, 48px);
}

.page-faq .faq-head__inner {
  position: relative;
  display: grid;
  gap: 18px;
}

.page-faq .faq-title {
  margin: 0;
  font-weight: 300;
  line-height: 1.08;
  letter-spacing: -.01em;
  max-width: 20ch;
  background: linear-gradient(96deg, var(--cream) 18%, var(--acid-mist) 72%, var(--acid) 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.page-faq .faq-lede {
  max-width: 62ch;
  color: rgba(243, 239, 228, .8);
}

.page-faq .faq-head__meta {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin: 4px 0 0;
}

.page-faq .faq-head__meta-item {
  display: flex;
  align-items: baseline;
  gap: 8px;
  padding: 8px 16px;
  border: 1px solid var(--faq-line);
  border-radius: var(--pill);
  background: rgba(69, 224, 190, .05);
}

.page-faq .faq-head__meta-item dt {
  font-size: 11px;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--stone);
  font-family: var(--font-mono);
}

.page-faq .faq-head__meta-item dd {
  margin: 0;
  font-size: 14px;
  color: var(--acid-mist);
  font-family: var(--font-mono);
}

.page-faq .faq-head__meta-item dd .mono-num {
  color: var(--white);
  font-size: 17px;
}

/* ---------- 筛选条 ---------- */
.page-faq .faq-filter {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  padding-block: 14px 16px;
  border-top: 1px solid var(--faq-line);
  border-bottom: 1px solid var(--faq-line);
}

.page-faq .faq-filter__label {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .18em;
  color: var(--stand);
  padding-right: 6px;
}

.page-faq .faq-filter .filter-chip {
  font-size: 13px;
}

.page-faq .faq-filter .filter-status {
  flex: 1 1 100%;
  margin: 4px 0 0;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .06em;
  color: var(--acid);
  min-height: 1em;
}

/* ---------- 主布局 ---------- */
.page-faq .faq-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--faq-gap);
  padding-block: clamp(30px, 5vw, 56px) clamp(40px, 6vw, 76px);
}

.page-faq .faq-index {
  display: grid;
  gap: 14px;
  align-content: start;
}

.page-faq .faq-index__label {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .22em;
  text-transform: uppercase;
  color: var(--stone);
}

.page-faq .faq-index__nav {
  display: grid;
  gap: 2px;
}

.page-faq .faq-index__link {
  position: relative;
  display: flex;
  align-items: baseline;
  gap: 12px;
  padding: 11px 12px 11px 16px;
  border-left: 2px solid var(--faq-line);
  border-radius: 0 var(--r-md) var(--r-md) 0;
  color: rgba(243, 239, 228, .72);
  text-decoration: none;
  font-size: 14px;
  transition: background .22s ease, border-color .22s ease, color .22s ease, transform .22s ease;
}

.page-faq .faq-index__link:hover,
.page-faq .faq-index__link:focus-visible {
  background: rgba(69, 224, 190, .08);
  border-left-color: var(--acid);
  color: var(--acid-mist);
  transform: translateX(3px);
}

.page-faq .faq-index__num {
  font-size: 11px;
  letter-spacing: .08em;
  color: var(--stand);
  flex: 0 0 auto;
}

.page-faq .faq-index__name {
  line-height: 1.4;
}

.page-faq .faq-index__cta {
  margin-top: 6px;
}

/* ---------- 主题区块 ---------- */
.page-faq .faq-body {
  min-width: 0;
  display: grid;
  gap: clamp(28px, 4vw, 46px);
}

.page-faq .faq-topic {
  scroll-margin-top: var(--faq-sticky);
  padding-block: clamp(22px, 3vw, 34px);
  border-top: 1px solid var(--faq-line);
}

.page-faq .faq-topic:first-child {
  border-top: 0;
  padding-top: 0;
}

.page-faq .faq-topic__head {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-bottom: 10px;
}

.page-faq .faq-topic__num {
  display: inline-grid;
  place-items: center;
  width: 38px;
  height: 38px;
  flex: 0 0 auto;
  border-radius: 50%;
  border: 1px solid var(--faq-line);
  background: rgba(69, 224, 190, .06);
  color: var(--acid);
  font-size: 12px;
  letter-spacing: .06em;
}

.page-faq .faq-topic__head h2 {
  margin: 0;
  font-size: clamp(21px, 2.6vw, 30px);
  font-weight: 700;
  font-style: italic;
  letter-spacing: -.005em;
  color: var(--cream);
}

.page-faq .faq-topic__intro {
  margin: 0 0 18px;
  max-width: 66ch;
  font-size: 14.5px;
  line-height: 1.78;
  color: rgba(243, 239, 228, .68);
}

/* ---------- 手风琴 ---------- */
.page-faq .faq-item {
  border: 1px solid var(--faq-line-soft);
  border-radius: var(--r-md);
  background: var(--faq-panel);
  overflow: hidden;
  transition: border-color .24s ease, background .24s ease;
}

.page-faq .faq-item + .faq-item {
  margin-top: 10px;
}

.page-faq .faq-item[open] {
  border-color: rgba(69, 224, 190, .45);
  background: rgba(7, 23, 19, .78);
  box-shadow: var(--shadow-acid);
}

.page-faq .faq-item__summary {
  position: relative;
  list-style: none;
  cursor: pointer;
  padding: 16px 58px 16px 20px;
  font-size: 15.5px;
  font-weight: 600;
  line-height: 1.55;
  color: var(--cream);
  transition: color .2s ease;
}

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

.page-faq .faq-item__summary:hover,
.page-faq .faq-item__summary:focus-visible {
  color: var(--acid-mist);
}

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

.page-faq .faq-item__sign {
  position: absolute;
  right: 18px;
  top: 50%;
  width: 22px;
  height: 22px;
  transform: translateY(-50%);
  border-radius: 50%;
  border: 1px solid var(--acid);
  background: rgba(69, 224, 190, .1);
  transition: background .22s ease, transform .22s ease;
}

.page-faq .faq-item__sign::before,
.page-faq .faq-item__sign::after {
  content: "";
  position: absolute;
  left: 50%;
  top: 50%;
  background: var(--acid);
}

.page-faq .faq-item__sign::before {
  width: 9px;
  height: 1.5px;
  transform: translate(-50%, -50%);
}

.page-faq .faq-item__sign::after {
  width: 1.5px;
  height: 9px;
  transform: translate(-50%, -50%) scaleY(1);
  transition: transform .24s ease;
}

.page-faq .faq-item[open] .faq-item__sign {
  background: var(--acid);
}

.page-faq .faq-item[open] .faq-item__sign::before {
  background: var(--ink-deep);
}

.page-faq .faq-item[open] .faq-item__sign::after {
  transform: translate(-50%, -50%) scaleY(0);
  background: var(--ink-deep);
}

.page-faq .faq-item__body {
  padding: 0 20px 20px;
  border-top: 1px solid var(--faq-line-soft);
  margin-top: 2px;
  padding-top: 16px;
}

.page-faq .faq-item__answer {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--acid-mist);
}

.page-faq .faq-item__tail {
  margin: 12px 0 0;
  font-size: 13.5px;
  line-height: 1.75;
  color: rgba(243, 239, 228, .62);
}

/* ---------- 步骤与说明 ---------- */
.page-faq .faq-steps {
  counter-reset: faqstep;
  list-style: none;
  margin: 14px 0 0;
  padding: 0;
}

.page-faq .faq-steps > li {
  counter-increment: faqstep;
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 9px 0;
  border-bottom: 1px dashed var(--faq-line-soft);
}

.page-faq .faq-steps > li:last-child {
  border-bottom: 0;
}

.page-faq .faq-steps > li::before {
  content: counter(faqstep, decimal-leading-zero);
  flex: 0 0 auto;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .08em;
  color: var(--acid);
  padding-top: 2px;
}

.page-faq .faq-step {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  flex: 1 1 auto;
  min-width: 0;
  cursor: pointer;
  font-size: 14px;
  line-height: 1.72;
  color: rgba(243, 239, 228, .82);
}

.page-faq .faq-step__check {
  flex: 0 0 auto;
  appearance: none;
  -webkit-appearance: none;
  width: 16px;
  height: 16px;
  margin: 4px 0 0;
  border: 1px solid var(--faq-line);
  border-radius: 5px;
  background: rgba(69, 224, 190, .06);
  cursor: pointer;
  position: relative;
  transition: background .2s ease, border-color .2s ease;
}

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

.page-faq .faq-step__check:checked::after {
  content: "";
  position: absolute;
  left: 5px;
  top: 1.5px;
  width: 4px;
  height: 8px;
  border-right: 2px solid var(--ink-deep);
  border-bottom: 2px solid var(--ink-deep);
  transform: rotate(42deg);
}

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

.page-faq .faq-step:has(.faq-step__check:checked) .faq-step__text {
  color: rgba(243, 239, 228, .42);
  text-decoration: line-through;
  text-decoration-color: rgba(69, 224, 190, .6);
}

.page-faq .faq-notes {
  list-style: none;
  margin: 14px 0 0;
  padding: 0;
  display: grid;
  gap: 8px;
}

.page-faq .faq-notes li {
  position: relative;
  padding-left: 20px;
  font-size: 14px;
  line-height: 1.74;
  color: rgba(243, 239, 228, .8);
}

.page-faq .faq-notes li::before {
  content: "";
  position: absolute;
  left: 2px;
  top: 10px;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--stand);
  opacity: .85;
}

/* ---------- 配图 ---------- */
.page-faq .faq-figure {
  margin: 18px 0 0;
  max-width: 720px;
}

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

.page-faq .faq-figure .media {
  border: 1px solid var(--faq-line-soft);
  border-radius: var(--r-md);
  overflow: hidden;
}

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

.page-faq .faq-figure .media__caption {
  display: block;
  margin-top: 10px;
  font-size: 12.5px;
  line-height: 1.7;
  color: var(--stone);
}

/* ---------- 底部入口 ---------- */
.page-faq .faq-more {
  border-top: 1px solid var(--faq-line);
  padding-block: clamp(36px, 5vw, 64px);
  background: linear-gradient(180deg, rgba(11, 36, 31, 0) 0%, rgba(7, 23, 19, .65) 100%);
}

.page-faq .faq-more__inner {
  display: grid;
  gap: 18px;
}

.page-faq .faq-more__title {
  margin: 0;
  font-size: clamp(19px, 2.4vw, 26px);
  font-weight: 700;
  font-style: italic;
  letter-spacing: -.005em;
  color: var(--cream);
  max-width: 28ch;
}

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

.page-faq .faq-more__links .btn {
  font-size: 13.5px;
}

/* ---------- 响应式 ---------- */
@media (max-width: 719px) {
  .page-faq .faq-head__meta-item {
    padding: 7px 13px;
  }

  .page-faq .faq-item__summary {
    padding: 14px 52px 14px 16px;
    font-size: 15px;
  }

  .page-faq .faq-item__body {
    padding: 14px 16px 18px;
  }

  .page-faq .faq-topic__head h2 {
    font-size: 20px;
  }

  .page-faq .faq-index__link {
    padding: 10px 12px;
  }

  .page-faq .faq-more__links .btn {
    flex: 1 1 100%;
    text-align: center;
  }
}

@media (min-width: 900px) {
  .page-faq .faq-layout {
    grid-template-columns: var(--faq-index-w) minmax(0, 1fr);
    align-items: start;
  }

  .page-faq .faq-index {
    position: sticky;
    top: var(--faq-sticky);
    align-self: start;
    max-height: calc(100vh - var(--faq-sticky) - 24px);
    overflow-y: auto;
    padding-right: 4px;
  }
}

@media (min-width: 1180px) {
  .page-faq .faq-figure {
    max-width: 760px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-index__link,
  .page-faq .faq-item,
  .page-faq .faq-item__sign,
  .page-faq .faq-item__sign::after,
  .page-faq .faq-step__check {
    transition: none;
  }
}
<<<END>>>