.page-faq {
  --faq-cat: var(--jiang);
  --faq-line: 1px solid var(--mist-deep);
  display: block;
}

/* ---------- 报头 ---------- */
.page-faq .faq-head {
  padding: 28px 0 0;
}

.page-faq .faq-head .breadcrumb {
  margin-bottom: 28px;
}

.page-faq .faq-head__grid {
  display: grid;
  gap: 36px;
  padding-bottom: 52px;
  border-bottom: var(--faq-line);
}

.page-faq .faq-title {
  margin: 10px 0 0;
  font-size: clamp(48px, 12vw, 96px);
  line-height: .95;
  letter-spacing: -.03em;
  font-weight: 900;
  color: var(--ink);
}

.page-faq .faq-head__sub {
  margin: 14px 0 0;
  font-size: 12px;
  letter-spacing: .18em;
  color: var(--ink-soft);
}

.page-faq .faq-head__lead .lede {
  margin: 22px 0 0;
  max-width: 44ch;
  font-size: 17px;
  line-height: 1.95;
  color: var(--ink);
}

.page-faq .faq-toc {
  align-self: end;
  padding: 20px 22px;
  background: var(--paper);
  border: var(--faq-line);
  border-radius: var(--radius-organic);
}

.page-faq .faq-toc__title {
  margin: 0 0 14px;
  font-size: 12px;
  letter-spacing: .2em;
  color: var(--ink-soft);
}

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

.page-faq .faq-toc__list a {
  display: flex;
  align-items: baseline;
  gap: 12px;
  padding: 9px 0;
  color: var(--ink);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: border-color 180ms var(--ease), color 180ms var(--ease);
}

.page-faq .faq-toc__list li:last-child a {
  border-bottom: none;
}

.page-faq .faq-toc__list a:hover,
.page-faq .faq-toc__list a:focus-visible {
  border-bottom-color: var(--orange);
}

.page-faq .faq-toc__idx {
  flex: none;
  font-size: 12px;
  color: var(--orange);
  letter-spacing: .08em;
}

.page-faq .faq-toc__name {
  flex: 1 1 auto;
  font-size: 15px;
}

.page-faq .faq-toc__n {
  flex: none;
  font-size: 12px;
  color: var(--ink-soft);
}

/* ---------- 筛选条 ---------- */
.page-faq .faq-filter {
  padding: 30px 0 4px;
}

.page-faq .faq-filter__rows {
  display: grid;
  gap: 14px;
}

.page-faq .faq-filter__row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px 10px;
}

.page-faq .faq-filter__k {
  flex: none;
  min-width: 68px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .18em;
  color: var(--ink-soft);
}

.page-faq .faq-chip {
  appearance: none;
  margin: 0;
  padding: 7px 14px;
  border: 1px solid var(--mist-deep);
  border-radius: 3px 14px 3px 14px;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .06em;
  line-height: 1.4;
  cursor: pointer;
  transition: background 160ms var(--ease), color 160ms var(--ease), border-color 160ms var(--ease);
}

.page-faq .faq-chip:hover {
  border-color: var(--orange);
}

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

.page-faq .faq-chip.is-active {
  background: var(--orange);
  border-color: var(--orange);
  color: var(--paper);
}

.page-faq .faq-chip--clear {
  background: transparent;
  color: var(--ink-soft);
}

.page-faq .faq-filter__meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding-top: 16px;
  border-top: var(--faq-line);
  font-size: 13px;
  letter-spacing: .08em;
  color: var(--ink-soft);
}

/* ---------- 区块通用 ---------- */
.page-faq .faq-block {
  padding: 64px 0;
}

.page-faq .faq-block--paper {
  background: var(--paper);
}

.page-faq .faq-split {
  display: grid;
  gap: 22px;
  --cat: var(--jiang);
}

.page-faq .faq-rail {
  display: flex;
  align-items: baseline;
  gap: 12px;
  margin: 0;
  color: var(--cat);
}

.page-faq .faq-rail__idx {
  font-size: 12px;
  letter-spacing: .16em;
  color: var(--cat);
}

.page-faq .faq-rail__name {
  font-size: 13px;
  letter-spacing: .16em;
  color: var(--ink-soft);
}

.page-faq .faq-h2 {
  margin: 0;
  font-size: clamp(24px, 5vw, 40px);
  line-height: 1.06;
  letter-spacing: -.02em;
  font-weight: 900;
  color: var(--ink);
}

.page-faq .faq-block__note {
  margin: 14px 0 0;
  max-width: 46ch;
  font-size: 16px;
  line-height: 1.95;
  color: var(--ink-soft);
}

/* ---------- 问答条目 ---------- */
.page-faq .faq-list {
  margin: 30px 0 0;
}

.page-faq .qa {
  border-top: var(--faq-line);
}

.page-faq .qa:last-child {
  border-bottom: var(--faq-line);
}

.page-faq .qa__q {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 20px 2px;
  cursor: pointer;
  list-style: none;
}

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

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

.page-faq .qa__code {
  position: relative;
  flex: none;
  padding-bottom: 3px;
  font-size: 13px;
  letter-spacing: .08em;
  color: var(--ink-soft);
}

.page-faq .qa__code::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 0;
  height: 1px;
  background: var(--orange);
  transition: width 160ms var(--ease) 60ms;
}

.page-faq .qa__q:hover .qa__code::after,
.page-faq .qa__q:focus-visible .qa__code::after,
.page-faq .qa[open] .qa__code::after {
  width: 100%;
}

.page-faq .qa__title {
  flex: 1 1 auto;
  font-size: 16px;
  line-height: 1.7;
  color: var(--ink);
}

.page-faq .qa__mark {
  flex: none;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--cat);
}

.page-faq .qa__a {
  padding: 0 2px 24px;
}

.page-faq .qa[open] > .qa__a {
  animation: faqRise 200ms var(--ease) both;
}

.page-faq .qa__a .prose {
  margin: 0;
  max-width: 62ch;
  font-size: 16px;
  line-height: 1.95;
  color: var(--ink);
}

/* ---------- 参数组条目带 ---------- */
.page-faq .faq-figure {
  margin: 30px 0 0;
}

.page-faq .faq-figure img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
  border-radius: var(--radius-organic-alt);
  border: var(--faq-line);
  background: var(--mist);
}

.page-faq .faq-figure__cap {
  margin: 12px 0 0;
  max-width: 56ch;
  font-size: 12px;
  line-height: 1.9;
  letter-spacing: .06em;
  color: var(--ink-soft);
}

.page-faq .faq-groups {
  display: flex;
  gap: 10px;
  margin: 26px 0 0;
  padding: 4px 2px 14px;
  overflow-x: auto;
  scroll-snap-type: x proximity;
  -webkit-overflow-scrolling: touch;
}

.page-faq .faq-group {
  flex: 0 0 auto;
  scroll-snap-align: start;
  display: flex;
  flex-direction: column;
  gap: 6px;
  min-width: 148px;
  padding: 12px 16px 14px;
  background: var(--paper);
  border: var(--faq-line);
  border-left: 3px solid var(--violet);
  border-radius: var(--radius-s);
}

.page-faq .faq-group__code {
  font-size: 12px;
  letter-spacing: .12em;
  color: var(--violet);
}

.page-faq .faq-group__name {
  font-size: 15px;
  line-height: 1.5;
  color: var(--ink);
}

/* ---------- 三级定位示意图 ---------- */
.page-faq .faq-map {
  margin: 30px 0 0;
}

.page-faq .faq-map__svg {
  display: block;
  width: 100%;
  height: auto;
}

.page-faq .faq-map__node rect {
  fill: var(--paper);
  stroke: var(--mist-deep);
  stroke-width: 1;
}

.page-faq .faq-map__node--violet rect {
  stroke: var(--violet);
}

.page-faq .faq-map__node--orange rect {
  stroke: var(--orange);
}

.page-faq .faq-map__k {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .16em;
  fill: var(--ink-soft);
}

.page-faq .faq-map__v {
  font-family: var(--font-sans);
  font-size: 15px;
  font-weight: 700;
  fill: var(--ink);
}

.page-faq .faq-map__arrow line {
  stroke: var(--mist-deep);
  stroke-width: 2;
}

.page-faq .faq-map__arrow path {
  fill: var(--orange);
}

/* ---------- 提报深色分区 ---------- */
.page-faq .faq-report {
  position: relative;
  overflow: hidden;
  background-color: var(--indigo);
  padding: 72px 0;
}

.page-faq .faq-report__bg {
  position: absolute;
  inset: 0;
  pointer-events: none;
}

.page-faq .faq-report__bg img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: .16;
}

.page-faq .faq-report__inner {
  position: relative;
  z-index: 1;
}

.page-faq .faq-report .faq-split {
  --cat: var(--orange);
}

.page-faq .faq-rail--dark .faq-rail__idx {
  color: var(--orange);
}

.page-faq .faq-rail--dark .faq-rail__name {
  color: rgba(247, 246, 241, .72);
}

.page-faq .faq-h2--dark {
  color: var(--paper);
}

.page-faq .faq-report__note {
  margin: 16px 0 0;
  max-width: 52ch;
  font-size: 16px;
  line-height: 1.95;
  color: rgba(247, 246, 241, .84);
}

.page-faq .faq-report__list {
  margin: 30px 0 0;
  padding: 0;
  list-style: none;
}

.page-faq .faq-report__list li {
  display: flex;
  align-items: baseline;
  gap: 18px;
  padding: 15px 0;
  border-bottom: 1px solid rgba(247, 246, 241, .18);
}

.page-faq .faq-report__idx {
  flex: none;
  font-size: 12px;
  letter-spacing: .12em;
  color: var(--orange);
}

.page-faq .faq-report__tx {
  font-family: var(--font-mono);
  font-size: 13px;
  line-height: 1.9;
  letter-spacing: .04em;
  color: var(--paper);
}

.page-faq .faq-report__contact {
  margin: 34px 0 0;
  padding: 22px 24px 24px;
  border: 1px solid rgba(247, 246, 241, .26);
  border-radius: var(--radius-organic-alt);
  background: rgba(21, 24, 27, .22);
}

.page-faq .faq-copy {
  appearance: none;
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 10px 14px;
  width: 100%;
  margin: 0 0 16px;
  padding: 0;
  border: none;
  background: none;
  text-align: left;
  cursor: pointer;
}

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

.page-faq .faq-copy__k {
  flex: none;
  font-size: 12px;
  letter-spacing: .18em;
  color: rgba(247, 246, 241, .68);
}

.page-faq .faq-copy__v {
  flex: 1 1 auto;
  font-size: 14px;
  letter-spacing: .04em;
  color: var(--paper);
  border-bottom: 1px solid rgba(247, 246, 241, .32);
  padding-bottom: 2px;
  transition: border-color 160ms var(--ease);
}

.page-faq .faq-copy:hover .faq-copy__v {
  border-bottom-color: var(--orange);
}

.page-faq .faq-copy__state {
  flex: none;
  font-size: 11px;
  letter-spacing: .1em;
  color: var(--orange);
}

.page-faq .faq-report__line {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 10px 14px;
  margin: 0 0 14px;
}

.page-faq .faq-report__k {
  flex: none;
  font-size: 12px;
  letter-spacing: .18em;
  color: rgba(247, 246, 241, .68);
}

.page-faq .faq-report__v {
  font-size: 14px;
  letter-spacing: .06em;
  color: var(--paper);
}

.page-faq .faq-report__hint {
  margin: 0;
  max-width: 56ch;
  font-size: 13px;
  line-height: 1.9;
  color: rgba(247, 246, 241, .74);
}

.page-faq .faq-report__hint a {
  color: var(--paper);
  border-bottom: 1px solid var(--orange);
  text-decoration: none;
}

.page-faq .faq-report__links {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 8px 10px;
  margin: 26px 0 0;
  font-size: 14px;
}

.page-faq .faq-report__links a {
  color: var(--paper);
  text-decoration: none;
  border-bottom: 1px solid rgba(247, 246, 241, .34);
  transition: border-color 160ms var(--ease);
}

.page-faq .faq-report__links a:hover,
.page-faq .faq-report__links a:focus-visible {
  border-bottom-color: var(--orange);
}

.page-faq .faq-report__sep {
  color: rgba(247, 246, 241, .42);
}

/* ---------- 动效 ---------- */
@keyframes faqRise {
  from {
    opacity: 0;
    transform: translateY(8px);
  }
  to {
    opacity: 1;
    transform: none;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq *,
  .page-faq *::before,
  .page-faq *::after {
    animation-duration: .001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: .001ms !important;
  }
}

/* ---------- 平板与桌面 ---------- */
@media (min-width: 760px) {
  .page-faq .faq-head {
    padding-top: 40px;
  }

  .page-faq .faq-head__grid {
    grid-template-columns: minmax(0, 1.5fr) minmax(0, 1fr);
    gap: 56px;
    align-items: end;
  }

  .page-faq .faq-block {
    padding: 88px 0;
  }

  .page-faq .faq-report {
    padding: 96px 0;
  }

  .page-faq .qa__a {
    padding-left: 46px;
  }
}

@media (min-width: 960px) {
  .page-faq .faq-split {
    grid-template-columns: 176px minmax(0, 1fr);
    gap: 56px;
    align-items: start;
  }

  .page-faq .faq-rail {
    flex-direction: column;
    gap: 8px;
    padding-top: 6px;
  }

  .page-faq .faq-rail__name {
    writing-mode: vertical-rl;
    letter-spacing: .32em;
    font-size: 12px;
  }

  .page-faq .faq-block__note {
    margin-top: 18px;
  }

  .page-faq .faq-report__list {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    column-gap: 48px;
  }

  .page-faq .faq-report__list li:nth-child(1),
  .page-faq .faq-report__list li:nth-child(2) {
    border-top: 1px solid rgba(247, 246, 241, .18);
  }
}

@media (min-width: 1180px) {
  .page-faq .qa__title {
    font-size: 17px;
  }

  .page-faq .faq-map__svg {
    max-width: 860px;
  }
}
<<<END>>>