.page-faq {
  --faq-line: var(--rule);
  --faq-ink-soft: #4A5F70;
  --faq-tight: var(--highland);
  background: var(--paper);
  color: var(--body-text);
}

.page-faq .faq-crumb-wrap {
  padding-top: 20px;
}

/* ---------- 首屏：等高线框景 ---------- */
.page-faq .faq-hero {
  position: relative;
  overflow: hidden;
  border-bottom: 1px solid var(--faq-line);
  margin-top: 12px;
}

.page-faq .faq-hero__media {
  position: absolute;
  inset: 0;
  z-index: 0;
}

.page-faq .faq-hero__media img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: .42;
}

.page-faq .faq-hero__veil {
  position: absolute;
  inset: 0;
  z-index: 1;
  background:
    linear-gradient(180deg, rgba(233, 238, 242, .78) 0%, rgba(233, 238, 242, .92) 62%, var(--paper) 100%),
    repeating-linear-gradient(90deg, rgba(195, 210, 220, .55) 0 1px, transparent 1px 96px);
}

.page-faq .faq-hero__inner {
  position: relative;
  z-index: 2;
  padding-block: clamp(44px, 7vw, 84px) clamp(36px, 5vw, 64px);
}

.page-faq .faq-hero .eyebrow {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .18em;
  color: var(--lake);
  margin: 0;
}

.page-faq .faq-hero h1 {
  font-family: var(--font-serif);
  font-weight: 600;
  font-size: clamp(30px, 4.6vw, 52px);
  line-height: 1.16;
  letter-spacing: -.01em;
  color: var(--ink);
  margin: 14px 0 0;
  max-width: 16ch;
}

.page-faq .faq-hero .lede {
  max-width: 62ch;
  margin: 18px 0 0;
  font-size: 16px;
  line-height: 1.75;
  color: var(--faq-ink-soft);
}

.page-faq .faq-hero__stats {
  display: grid;
  grid-template-columns: 1fr;
  gap: 22px;
  margin-top: 36px;
  padding-top: 26px;
  border-top: 1px solid var(--faq-line);
}

@media (min-width: 700px) {
  .page-faq .faq-hero__stats {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 32px;
  }
}

.page-faq .faq-stat {
  position: relative;
  padding-left: 16px;
}

.page-faq .faq-stat::before {
  content: "";
  position: absolute;
  left: 0;
  top: 6px;
  bottom: 6px;
  width: 1px;
  background: var(--lake-soft);
}

.page-faq .faq-stat__num {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: clamp(40px, 6vw, 64px);
  line-height: 1;
  font-weight: 600;
  color: var(--ink);
  letter-spacing: -.02em;
}

.page-faq .faq-stat__unit {
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: .12em;
  color: var(--gold);
  margin-left: 6px;
}

.page-faq .faq-stat__cap {
  margin: 10px 0 0;
  font-size: 13px;
  line-height: 1.7;
  color: var(--faq-ink-soft);
}

.page-faq .faq-hero__stamp {
  margin: 28px 0 0;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .06em;
  color: var(--cobalt);
}

.page-faq .faq-hero__stamp time {
  color: var(--gold);
  font-weight: 600;
}

/* ---------- 主体栅格 ---------- */
.page-faq .faq-body {
  padding-block: clamp(36px, 5vw, 64px) clamp(64px, 9vw, 112px);
}

.page-faq .faq-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 36px;
}

@media (min-width: 940px) {
  .page-faq .faq-grid {
    grid-template-columns: minmax(210px, 3fr) minmax(0, 9fr);
    gap: 56px;
  }
}

/* ---------- 左侧分类刻度 ---------- */
.page-faq .faq-rail__inner {
  border-top: 2px solid var(--cobalt);
  padding-top: 18px;
}

@media (min-width: 940px) {
  .page-faq .faq-rail__inner {
    position: sticky;
    top: 132px;
  }
}

.page-faq .faq-rail__title {
  font-family: var(--font-serif);
  font-size: 19px;
  font-weight: 600;
  color: var(--ink);
  margin: 0;
  letter-spacing: -.005em;
}

.page-faq .faq-rail__note {
  margin: 10px 0 0;
  font-size: 12.5px;
  line-height: 1.7;
  color: var(--faq-ink-soft);
}

.page-faq .faq-rail__list {
  list-style: none;
  margin: 20px 0 0;
  padding: 0;
  border-left: 1px solid var(--faq-line);
}

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

.page-faq .faq-rail__link {
  position: relative;
  display: grid;
  grid-template-columns: 30px minmax(0, 1fr) auto;
  align-items: center;
  gap: 10px;
  padding: 11px 8px 11px 20px;
  text-decoration: none;
  color: var(--body-text);
  border-bottom: 1px solid rgba(195, 210, 220, .5);
  transition: color .18s var(--ease), background-color .18s var(--ease);
}

.page-faq .faq-rail__link::before {
  content: "";
  position: absolute;
  left: -1px;
  top: 50%;
  width: 11px;
  height: 1px;
  background: var(--faq-line);
  transform: translateY(-50%);
  transition: width .18s var(--ease), background-color .18s var(--ease);
}

.page-faq .faq-rail__link:hover,
.page-faq .faq-rail__link:focus-visible {
  color: var(--lake);
  background: rgba(169, 207, 224, .2);
  outline: none;
}

.page-faq .faq-rail__link:hover::before,
.page-faq .faq-rail__link:focus-visible::before {
  width: 18px;
  background: var(--gold);
}

.page-faq .faq-rail__link:focus-visible {
  box-shadow: inset 0 0 0 1px var(--gold);
}

.page-faq .faq-rail__no {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: 12px;
  letter-spacing: .08em;
  color: var(--lake);
}

.page-faq .faq-rail__label {
  font-size: 14px;
  line-height: 1.4;
}

.page-faq .faq-rail__count {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: 12px;
  color: var(--faq-ink-soft);
}

.page-faq .faq-rail__panel {
  margin-top: 22px;
  padding: 14px 16px;
  background: var(--glass);
  border: 1px solid var(--faq-line);
  backdrop-filter: blur(6px);
}

.page-faq .faq-rail__panel-key {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .14em;
  color: var(--lake);
}

.page-faq .faq-rail__panel-val {
  margin: 4px 0 12px;
  font-size: 13px;
  line-height: 1.65;
  color: var(--body-text);
}

.page-faq .faq-rail__panel-val:last-child {
  margin-bottom: 0;
}

/* ---------- 玻璃筛选条 ---------- */
.page-faq .faq-toolbar {
  padding: 16px 18px 18px;
  background: var(--glass);
  border: 1px solid var(--faq-line);
  backdrop-filter: blur(10px);
}

.page-faq .faq-toolbar__title {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .14em;
  color: var(--cobalt);
}

.page-faq .faq-toolbar__hint {
  margin: 8px 0 0;
  font-size: 12.5px;
  line-height: 1.65;
  color: var(--faq-ink-soft);
}

.page-faq .faq-filter {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 14px;
}

.page-faq .faq-filter__btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 7px 12px;
  font-family: var(--font-sans);
  font-size: 13px;
  line-height: 1.3;
  color: var(--cobalt);
  background: rgba(255, 255, 255, .6);
  border: 1px solid var(--faq-line);
  border-radius: 2px;
  cursor: pointer;
  transition: background-color .18s var(--ease), border-color .18s var(--ease), color .18s var(--ease);
}

.page-faq .faq-filter__btn:hover,
.page-faq .faq-filter__btn:focus-visible {
  border-color: var(--lake);
  color: var(--ink);
  outline: none;
}

.page-faq .faq-filter__btn:focus-visible {
  box-shadow: 0 0 0 2px var(--gold);
}

.page-faq .faq-filter__btn[aria-pressed="true"] {
  background: var(--lake-soft);
  border-color: var(--lake);
  color: var(--ink);
  font-weight: 600;
}

.page-faq .faq-filter__count {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: 11px;
  color: var(--gold);
}

/* ---------- 问答分组 ---------- */
.page-faq .faq-group {
  margin-top: 44px;
  padding-top: 26px;
  border-top: 1px solid var(--faq-line);
}

.page-faq .faq-group:first-of-type {
  margin-top: 40px;
}

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

.page-faq .faq-group__no {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: 12px;
  letter-spacing: .14em;
  color: var(--gold);
}

.page-faq .faq-group__title {
  margin: 0;
  font-family: var(--font-serif);
  font-weight: 600;
  font-size: clamp(21px, 2.4vw, 28px);
  line-height: 1.25;
  letter-spacing: -.005em;
  color: var(--ink);
}

.page-faq .faq-group__meta {
  margin-left: auto;
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--faq-ink-soft);
}

/* ---------- 单条问答 ---------- */
.page-faq .faq-q {
  border-bottom: 1px solid var(--faq-line);
}

.page-faq .faq-q__heading {
  margin: 0;
  font-size: inherit;
  font-weight: inherit;
}

.page-faq .faq-q__trigger {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  align-items: start;
  gap: 12px;
  width: 100%;
  padding: 17px 4px;
  background: none;
  border: 0;
  text-align: left;
  font: inherit;
  color: var(--ink);
  cursor: pointer;
  transition: color .18s var(--ease);
}

.page-faq .faq-q__trigger:hover {
  color: var(--lake);
}

.page-faq .faq-q__trigger:focus-visible {
  outline: none;
  box-shadow: inset 0 0 0 1px var(--gold);
}

.page-faq .faq-q__no {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: 12px;
  letter-spacing: .1em;
  color: var(--lake);
  padding-top: 4px;
}

.page-faq .faq-q__text {
  font-size: 16px;
  line-height: 1.6;
  font-weight: 600;
}

.page-faq .faq-q__sign {
  position: relative;
  width: 12px;
  height: 12px;
  margin-top: 7px;
  flex: none;
}

.page-faq .faq-q__sign::before,
.page-faq .faq-q__sign::after {
  content: "";
  position: absolute;
  background: var(--lake);
  transition: transform .18s var(--ease), opacity .18s var(--ease);
}

.page-faq .faq-q__sign::before {
  left: 0;
  top: 5.5px;
  width: 12px;
  height: 1px;
}

.page-faq .faq-q__sign::after {
  left: 5.5px;
  top: 0;
  width: 1px;
  height: 12px;
}

.page-faq .faq-q[data-open] .faq-q__sign::after {
  transform: scaleY(0);
  opacity: 0;
}

.page-faq .faq-q__panel {
  display: block;
  max-width: 70ch;
  padding: 0 4px 20px 40px;
}

.page-faq.is-ready .faq-q__panel {
  display: none;
}

.page-faq.is-ready .faq-q[data-open] .faq-q__panel {
  display: block;
}

.page-faq .faq-q__panel p {
  margin: 0 0 10px;
  font-size: 15px;
  line-height: 1.78;
  color: var(--faq-ink-soft);
}

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

.page-faq .faq-q__panel a {
  color: var(--lake);
  text-decoration: none;
  border-bottom: 1px solid var(--lake-soft);
  transition: border-color .18s var(--ease), color .18s var(--ease);
}

.page-faq .faq-q__panel a:hover,
.page-faq .faq-q__panel a:focus-visible {
  color: var(--cobalt);
  border-bottom-color: var(--gold);
  outline: none;
}

.page-faq .faq-q__actions {
  margin-top: 14px !important;
}

.page-faq .faq-q__actions .copy-btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 6px 12px;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: .08em;
  color: var(--cobalt);
  background: rgba(255, 255, 255, .55);
  border: 1px solid var(--faq-line);
  border-radius: 2px;
  cursor: pointer;
  transition: border-color .18s var(--ease), color .18s var(--ease);
}

.page-faq .faq-q__actions .copy-btn:hover,
.page-faq .faq-q__actions .copy-btn:focus-visible {
  border-color: var(--gold);
  color: var(--ink);
  outline: none;
}

.page-faq .faq-q__actions .copy-btn:focus-visible {
  box-shadow: 0 0 0 2px var(--gold);
}

.page-faq .faq-q__actions .copy-btn__hint {
  display: none;
  color: var(--gold);
}

.page-faq .faq-q__actions .copy-btn.is-copied .copy-btn__hint {
  display: inline;
}

.page-faq .faq-q__actions .copy-btn.is-copied .copy-btn__value {
  color: var(--faq-ink-soft);
}

/* ---------- 库存状态信息图 ---------- */
.page-faq .faq-stock-figure {
  display: grid;
  grid-template-columns: 1fr;
  gap: 20px;
  margin: 18px 0 26px;
  padding: 18px;
  background: var(--sheet);
  border: 1px solid var(--faq-line);
}

@media (min-width: 720px) {
  .page-faq .faq-stock-figure {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
    align-items: center;
    gap: 32px;
    padding: 22px 24px;
  }
}

.page-faq .faq-stock-figure__media {
  overflow: hidden;
  background: var(--paper);
}

.page-faq .faq-stock-figure__media img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 1 / 1;
  object-fit: cover;
}

.page-faq .faq-stock-figure__legend {
  margin: 0;
}

.page-faq .faq-stock-figure__title {
  margin: 0 0 14px;
  font-family: var(--font-serif);
  font-size: 17px;
  font-weight: 600;
  line-height: 1.5;
  color: var(--ink);
}

.page-faq .faq-stock-legend {
  list-style: none;
  margin: 0;
  padding: 0;
  border-top: 1px solid var(--faq-line);
}

.page-faq .faq-stock-legend__item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 9px 0;
  font-size: 14px;
  line-height: 1.5;
  color: var(--body-text);
  border-bottom: 1px solid rgba(195, 210, 220, .55);
}

.page-faq .faq-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  flex: none;
}

.page-faq .faq-dot--ok {
  background: var(--cobalt);
}

.page-faq .faq-dot--tight {
  background: var(--highland);
}

.page-faq .faq-stock-figure__note {
  margin: 14px 0 0;
  font-size: 12px;
  line-height: 1.7;
  color: var(--faq-ink-soft);
}

/* ---------- 收束 ---------- */
.page-faq .faq-tail {
  margin-top: 48px;
  padding-top: 22px;
  border-top: 1px solid var(--faq-line);
}

.page-faq .faq-tail__text {
  margin: 0;
  max-width: 68ch;
  font-size: 15px;
  line-height: 1.8;
  color: var(--faq-ink-soft);
}

.page-faq .faq-tail__text a {
  color: var(--lake);
  text-decoration: none;
  border-bottom: 1px solid var(--lake-soft);
}

.page-faq .faq-tail__text a:hover,
.page-faq .faq-tail__text a:focus-visible {
  color: var(--cobalt);
  border-bottom-color: var(--gold);
  outline: none;
}

.page-faq .faq-tail__stamp {
  margin: 16px 0 0;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .06em;
  color: var(--cobalt);
}

.page-faq .faq-tail__stamp time {
  color: var(--gold);
  font-weight: 600;
}

/* ---------- 窄屏保护 ---------- */
@media (max-width: 560px) {
  .page-faq .faq-hero h1 {
    max-width: none;
  }

  .page-faq .faq-q__panel {
    padding-left: 4px;
  }

  .page-faq .faq-q__text {
    font-size: 15px;
  }

  .page-faq .faq-group__head {
    flex-wrap: wrap;
    gap: 8px 12px;
  }

  .page-faq .faq-group__meta {
    margin-left: 0;
    width: 100%;
  }

  .page-faq .faq-filter {
    gap: 6px;
  }

  .page-faq .faq-filter__btn {
    font-size: 12px;
    padding: 6px 10px;
  }
}

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