.page-faq {
  background: var(--ink-900);
  color: var(--paper);
}

.page-faq .faq-crumbs {
  padding-top: clamp(16px, 3vw, 28px);
}

.page-faq .breadcrumbs ol {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin: 0;
  padding: 0;
  list-style: none;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .06em;
  color: var(--stone);
}

.page-faq .breadcrumbs__item {
  display: inline-flex;
  align-items: baseline;
}

.page-faq .breadcrumbs__item + .breadcrumbs__item::before {
  content: "/";
  margin-right: 6px;
  color: var(--moss);
}

.page-faq .breadcrumbs__link {
  color: var(--stone);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color .18s var(--ease), border-color .18s var(--ease);
}

.page-faq .breadcrumbs__link:hover,
.page-faq .breadcrumbs__link:focus-visible {
  color: var(--cyan);
  border-bottom-color: var(--line-strong);
}

.page-faq .breadcrumbs__link[aria-current="page"] {
  color: var(--paper);
  border-bottom-color: var(--line);
}

/* 首屏 */
.page-faq .faq-hero {
  position: relative;
  overflow: hidden;
  padding: clamp(24px, 4vw, 44px) 0 clamp(32px, 5vw, 64px);
  border-bottom: 1px solid var(--line);
}

.page-faq .faq-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  opacity: .55;
  background-image:
    linear-gradient(to right, var(--line) 1px, transparent 1px),
    linear-gradient(to bottom, var(--line) 1px, transparent 1px);
  background-size: 72px 72px;
  -webkit-mask-image: radial-gradient(120% 90% at 82% 0%, #000 0%, transparent 78%);
  mask-image: radial-gradient(120% 90% at 82% 0%, #000 0%, transparent 78%);
}

.page-faq .faq-hero__inner {
  position: relative;
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(24px, 4vw, 48px);
  align-items: start;
}

.page-faq .faq-hero__text h1 {
  margin: .28em 0 .5em;
  font-family: var(--font-display);
  font-size: clamp(2.1rem, 6vw, 4.1rem);
  line-height: 1.04;
  letter-spacing: .02em;
  font-weight: 700;
}

.page-faq .faq-hero__lead {
  max-width: 48ch;
  margin: 0;
  font-size: clamp(.96rem, 1.6vw, 1.06rem);
  line-height: 1.85;
  color: rgba(242, 247, 244, .78);
}

.page-faq .faq-hero__tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 20px 0 0;
  padding: 0;
  list-style: none;
}

.page-faq .faq-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 26px;
}

.page-faq .faq-hero__art {
  position: relative;
  margin: 0;
  padding: 8px;
  border: 1px solid var(--line);
  border-radius: var(--r-md);
  background: var(--ink-800);
}

.page-faq .faq-hero__art::before,
.page-faq .faq-hero__art::after {
  content: "";
  position: absolute;
  width: 14px;
  height: 14px;
  border: 1px solid var(--cyan);
  pointer-events: none;
}

.page-faq .faq-hero__art::before {
  top: -1px;
  left: -1px;
  border-right: 0;
  border-bottom: 0;
}

.page-faq .faq-hero__art::after {
  right: -1px;
  bottom: -1px;
  border-left: 0;
  border-top: 0;
}

.page-faq .faq-hero__art img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
  border-radius: var(--r-sm);
}

.page-faq .faq-hero__art figcaption {
  padding: 10px 4px 2px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .04em;
  line-height: 1.6;
  color: var(--stone);
}

/* 主框架：索引 + 正文 */
.page-faq .faq-shell {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(24px, 4vw, 44px);
  padding-top: clamp(32px, 5vw, 56px);
  padding-bottom: clamp(48px, 7vw, 88px);
}

.page-faq .faq-index {
  border: 1px solid var(--line);
  border-radius: var(--r-md);
  background: var(--ink-800);
  padding: 18px 16px;
}

.page-faq .faq-index__title {
  margin: 0 0 14px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--stone);
}

.page-faq .faq-index__list {
  display: grid;
  gap: 4px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-faq .faq-index__link {
  display: flex;
  align-items: baseline;
  gap: 10px;
  padding: 9px 10px;
  font-size: .92rem;
  color: var(--paper);
  text-decoration: none;
  border-left: 2px solid transparent;
  border-radius: var(--r-sm);
  transition: background .18s var(--ease), border-color .18s var(--ease), color .18s var(--ease);
}

.page-faq .faq-index__link .data-num {
  font-size: 11px;
  color: var(--stone);
  transition: color .18s var(--ease);
}

.page-faq .faq-index__link:hover,
.page-faq .faq-index__link:focus-visible {
  background: var(--cyan-soft);
  border-left-color: var(--cyan);
  color: var(--cyan);
}

.page-faq .faq-index__link:hover .data-num,
.page-faq .faq-index__link:focus-visible .data-num {
  color: var(--cyan);
}

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

.page-faq .faq-index__note {
  margin: 16px 0 0;
  padding-top: 14px;
  border-top: 1px solid var(--line);
  font-size: .82rem;
  line-height: 1.75;
  color: var(--stone);
}

.page-faq .faq-body {
  display: grid;
  gap: clamp(36px, 5vw, 60px);
  min-width: 0;
}

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

.page-faq .faq-section__head {
  display: grid;
  gap: 6px;
  margin-bottom: 18px;
  padding-top: 16px;
  border-top: 1px solid var(--line-strong);
}

.page-faq .faq-section__num {
  font-size: 12px;
  letter-spacing: .14em;
  color: var(--cyan);
}

.page-faq .faq-section__head h2 {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(1.45rem, 3vw, 2.15rem);
  line-height: 1.15;
  letter-spacing: .02em;
  font-weight: 700;
}

.page-faq .faq-section__desc {
  max-width: 62ch;
  margin: 0;
  font-size: .94rem;
  line-height: 1.8;
  color: rgba(242, 247, 244, .72);
}

.page-faq .faq-section:target .faq-section__num {
  color: var(--orange);
}

/* 速查表 */
.page-faq .faq-table-wrap {
  margin-bottom: 20px;
  border: 1px solid var(--line);
  border-radius: var(--r-md);
  background: var(--ink-800);
  overflow: hidden;
}

.page-faq .faq-table {
  width: 100%;
  border-collapse: collapse;
  font-size: .94rem;
}

.page-faq .faq-table caption {
  padding: 13px 16px;
  text-align: left;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .12em;
  color: var(--stone);
  border-bottom: 1px solid var(--line);
}

.page-faq .faq-table thead th {
  padding: 12px 16px;
  text-align: left;
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: .1em;
  color: var(--stone);
  background: rgba(57, 255, 208, .04);
  border-bottom: 1px solid var(--line-strong);
}

.page-faq .faq-table tbody th {
  padding: 14px 16px;
  text-align: left;
  vertical-align: top;
  white-space: nowrap;
  font-size: .9rem;
  font-weight: 600;
  color: var(--cyan);
  border-bottom: 1px solid var(--line);
}

.page-faq .faq-table td {
  padding: 14px 16px;
  vertical-align: top;
  line-height: 1.75;
  color: rgba(242, 247, 244, .8);
  border-bottom: 1px solid var(--line);
}

.page-faq .faq-table tbody tr {
  transition: background .18s var(--ease);
}

.page-faq .faq-table tbody tr:hover {
  background: var(--cyan-soft);
}

.page-faq .faq-table tbody tr:last-child th,
.page-faq .faq-table tbody tr:last-child td {
  border-bottom: 0;
}

.page-faq .faq-figure {
  margin: 0;
  padding: 8px;
  border: 1px solid var(--line);
  border-radius: var(--r-md);
  background: var(--ink-800);
}

.page-faq .faq-figure img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
  border-radius: var(--r-sm);
}

/* 问答手风琴 */
.page-faq .qa-list {
  display: grid;
  gap: 10px;
}

.page-faq .qa {
  border: 1px solid var(--line);
  border-left: 2px solid var(--moss);
  border-radius: var(--r-sm);
  background: var(--ink-800);
  scroll-margin-top: 96px;
  transition: border-color .2s var(--ease), background .2s var(--ease), box-shadow .2s var(--ease);
}

.page-faq .qa:hover {
  border-color: var(--line-strong);
  border-left-color: var(--cyan);
}

.page-faq .qa[open] {
  border-left-color: var(--cyan);
  background: linear-gradient(90deg, rgba(57, 255, 208, .06), transparent 42%), var(--ink-800);
}

.page-faq .qa:target {
  border-color: var(--line-strong);
  box-shadow: 0 0 0 1px var(--line-strong);
}

.page-faq .qa__summary {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 16px 18px;
  cursor: pointer;
  list-style: none;
}

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

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

.page-faq .qa__index {
  min-width: 18px;
  padding-top: 3px;
  font-size: 11px;
  color: var(--stone);
}

.page-faq .qa__q {
  flex: 1 1 auto;
  font-size: 1rem;
  font-weight: 600;
  line-height: 1.55;
  color: var(--paper);
  transition: color .2s var(--ease);
}

.page-faq .qa[open] .qa__q {
  color: var(--cyan);
}

.page-faq .qa__icon {
  position: relative;
  flex: 0 0 14px;
  width: 14px;
  height: 14px;
  margin-top: 5px;
}

.page-faq .qa__icon::before,
.page-faq .qa__icon::after {
  content: "";
  position: absolute;
  background: var(--cyan);
  transition: transform .2s var(--ease), opacity .2s var(--ease);
}

.page-faq .qa__icon::before {
  left: 0;
  right: 0;
  top: 50%;
  height: 2px;
  transform: translateY(-50%);
}

.page-faq .qa__icon::after {
  top: 0;
  bottom: 0;
  left: 50%;
  width: 2px;
  transform: translateX(-50%);
}

.page-faq .qa[open] .qa__icon::after {
  transform: translateX(-50%) rotate(90deg);
  opacity: 0;
}

.page-faq .qa__body {
  padding: 0 18px 18px 48px;
  font-size: .94rem;
  line-height: 1.85;
  color: rgba(242, 247, 244, .8);
}

.page-faq .qa__body p {
  margin: 0 0 10px;
}

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

.page-faq .qa__body a {
  color: var(--cyan);
  text-decoration: underline;
  text-decoration-color: var(--line-strong);
  text-underline-offset: 3px;
}

.page-faq .qa__body a:hover,
.page-faq .qa__body a:focus-visible {
  text-decoration-color: var(--cyan);
}

/* 仍需协助 */
.page-faq .faq-help {
  display: grid;
  gap: 16px;
  padding: clamp(22px, 4vw, 34px);
  border: 1px solid var(--line-strong);
  border-radius: var(--r-md);
  background:
    linear-gradient(135deg, rgba(57, 255, 208, .1), transparent 62%),
    var(--ink-800);
}

.page-faq .faq-help__lead {
  margin: 0;
  font-size: .96rem;
  line-height: 1.75;
  color: var(--paper);
}

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

.page-faq .faq-help__list li {
  display: flex;
  gap: 10px;
  font-size: .92rem;
  line-height: 1.75;
  color: rgba(242, 247, 244, .82);
}

.page-faq .faq-help__list li::before {
  content: "";
  flex: 0 0 6px;
  width: 6px;
  height: 6px;
  margin-top: 9px;
  background: var(--orange);
}

.page-faq .faq-help__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  padding-top: 4px;
  border-top: 1px solid var(--line);
}

/* 断点 */
@media (min-width: 720px) {
  .page-faq .faq-hero__inner {
    grid-template-columns: minmax(0, 1.08fr) minmax(0, .92fr);
    align-items: center;
  }
}

@media (min-width: 960px) {
  .page-faq .faq-shell {
    grid-template-columns: 244px minmax(0, 1fr);
    gap: clamp(32px, 4vw, 56px);
    align-items: start;
  }

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

@media (max-width: 719px) {
  .page-faq .faq-table thead {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0 0 0 0);
    white-space: nowrap;
    border: 0;
  }

  .page-faq .faq-table,
  .page-faq .faq-table tbody,
  .page-faq .faq-table tr,
  .page-faq .faq-table th,
  .page-faq .faq-table td {
    display: block;
    width: 100%;
  }

  .page-faq .faq-table tbody tr {
    padding: 12px 16px;
    border-bottom: 1px solid var(--line);
  }

  .page-faq .faq-table tbody tr:last-child {
    border-bottom: 0;
  }

  .page-faq .faq-table tbody th {
    padding: 0 0 8px;
    white-space: normal;
    border-bottom: 0;
    font-family: var(--font-mono);
    font-size: 12px;
    letter-spacing: .06em;
  }

  .page-faq .faq-table td {
    padding: 8px 0 0;
    border-bottom: 0;
  }

  .page-faq .faq-table td::before {
    content: attr(data-label);
    display: block;
    margin-bottom: 3px;
    font-family: var(--font-mono);
    font-size: 10px;
    letter-spacing: .1em;
    color: var(--stone);
  }

  .page-faq .qa__summary {
    padding: 14px;
    gap: 10px;
  }

  .page-faq .qa__body {
    padding: 0 14px 16px 42px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .qa,
  .page-faq .qa__icon::before,
  .page-faq .qa__icon::after,
  .page-faq .qa__q,
  .page-faq .faq-index__link,
  .page-faq .faq-table tbody tr {
    transition: none;
  }
}
<<<END>>>