.page-faq {
  --tone: var(--blue);
  --faq-gap: clamp(28px, 5vw, 64px);
  --faq-line: 1px solid var(--gray-200);
  --faq-indent: 82px;
  display: block;
  min-width: 0;
}

.page-faq [data-tone] {
  --tone-soft: color-mix(in srgb, var(--tone) 12%, var(--paper));
}

.page-faq [data-tone="blue"] { --tone: var(--blue); }
.page-faq [data-tone="orange"] { --tone: var(--orange); }
.page-faq [data-tone="teal"] { --tone: var(--teal); }
.page-faq [data-tone="gold"] { --tone: var(--gold); }

.page-faq .faq-shell {
  padding-top: clamp(18px, 3vw, 40px);
  padding-bottom: clamp(48px, 8vw, 96px);
  min-width: 0;
}

/* ---------- 面包屑 ---------- */
.page-faq .faq-crumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 6px;
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: .06em;
  color: var(--gray-500);
  margin-bottom: clamp(20px, 4vw, 40px);
}

.page-faq .faq-crumb a {
  color: var(--slate);
  text-decoration: none;
  border-bottom: 1px solid var(--gray-200);
}

.page-faq .faq-crumb a:hover {
  color: var(--blue);
  border-bottom-color: var(--blue);
}

.page-faq .faq-crumb-sep {
  color: var(--gray-200);
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  padding-bottom: clamp(28px, 5vw, 56px);
  border-bottom: 2px solid var(--ink);
}

.page-faq .faq-title {
  margin: 14px 0 22px;
  font-size: clamp(34px, 7vw, 76px);
  line-height: 1.03;
  font-weight: 900;
  letter-spacing: -0.01em;
  color: var(--ink);
  max-width: 16em;
}

.page-faq .faq-lede {
  max-width: 36em;
  font-size: clamp(16px, 1.7vw, 19px);
  line-height: 1.8;
  color: var(--slate);
}

.page-faq .faq-hero-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 26px;
  margin: 30px 0 0;
  padding: 0;
  list-style: none;
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: .08em;
  color: var(--gray-500);
}

.page-faq .faq-hero-meta .ax-mono {
  color: var(--blue);
  font-size: 14px;
}

/* ---------- 锚点目录 ---------- */
.page-faq .faq-toc {
  display: flex;
  align-items: center;
  gap: 6px;
  overflow-x: auto;
  padding: 14px 0;
  margin-bottom: clamp(8px, 2vw, 20px);
  border-bottom: var(--faq-line);
  background: var(--paper);
  scrollbar-width: none;
  -webkit-overflow-scrolling: touch;
}

.page-faq .faq-toc::-webkit-scrollbar { display: none; }

.page-faq .faq-toc-label {
  flex: 0 0 auto;
  font-size: 11px;
  letter-spacing: .12em;
  color: var(--gray-500);
  padding-right: 8px;
  border-right: var(--faq-line);
}

.page-faq .faq-toc-link {
  flex: 0 0 auto;
  padding: 7px 11px;
  border: 1px solid var(--gray-200);
  background: var(--paper-2);
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: .05em;
  color: var(--slate);
  text-decoration: none;
  white-space: nowrap;
  transition: color .16s var(--ease), border-color .16s var(--ease), background .16s var(--ease);
}

.page-faq .faq-toc-link:hover {
  border-color: var(--blue);
  color: var(--blue);
}

.page-faq .faq-toc-link[aria-current="true"] {
  background: var(--pulse);
  border-color: var(--blue);
  color: var(--blue);
}

@media (min-width: 900px) {
  .page-faq .faq-toc {
    position: sticky;
    top: 0;
    z-index: 6;
  }
}

/* ---------- 分组头 ---------- */
.page-faq .faq-group {
  padding: var(--faq-gap) 0;
  border-bottom: var(--faq-line);
  scroll-margin-top: 72px;
}

.page-faq .faq-group-head {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 8px 14px;
  padding-left: 14px;
  border-left: 4px solid var(--tone);
  margin-bottom: clamp(18px, 3vw, 28px);
}

.page-faq .faq-group-num {
  font-family: var(--mono);
  font-size: 13px;
  letter-spacing: .1em;
  color: var(--tone);
  margin: 0;
}

.page-faq .faq-group-title {
  margin: 0;
  font-size: clamp(22px, 3.2vw, 34px);
  font-weight: 800;
  letter-spacing: -0.01em;
  color: var(--ink);
}

.page-faq .faq-group-note {
  flex: 0 0 100%;
  color: var(--gray-500);
  font-size: 12px;
  letter-spacing: .06em;
}

@media (min-width: 760px) {
  .page-faq .faq-group-note {
    flex: 0 0 auto;
    margin-left: auto;
    text-align: right;
  }
}

/* ---------- 问答条目 ---------- */
.page-faq .faq-list {
  border-top: var(--faq-line);
}

.page-faq .faq-item {
  position: relative;
  border-bottom: var(--faq-line);
  border-left: 4px solid transparent;
  transition: border-left-color .18s var(--ease), background-color .18s var(--ease);
}

.page-faq .faq-item:has(.ax-disclosure-trigger[aria-expanded="true"]) {
  border-left-color: var(--tone);
  background: var(--tone-soft);
}

.page-faq .faq-q {
  display: grid;
  grid-template-columns: 46px minmax(0, 1fr) 16px;
  align-items: start;
  gap: 10px;
  width: 100%;
  padding: 17px 10px;
  margin: 0;
  border: 0;
  background: none;
  font: inherit;
  color: var(--ink);
  text-align: left;
  cursor: pointer;
}

.page-faq .faq-q-num {
  padding-top: 4px;
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: .08em;
  color: var(--gray-500);
}

.page-faq .faq-q-text {
  font-size: clamp(16px, 1.9vw, 20px);
  font-weight: 600;
  line-height: 1.55;
  transition: color .16s var(--ease);
}

.page-faq .faq-q:hover .faq-q-text,
.page-faq .faq-q:focus-visible .faq-q-text {
  color: var(--tone);
}

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

.page-faq .faq-arrow {
  width: 11px;
  height: 11px;
  margin-top: 8px;
  border-right: 2px solid var(--tone);
  border-bottom: 2px solid var(--tone);
  transform: rotate(-45deg);
  transform-origin: 60% 60%;
  transition: transform .18s var(--ease);
}

.page-faq .ax-disclosure-trigger[aria-expanded="true"] .faq-arrow {
  transform: rotate(45deg);
}

.page-faq .faq-a {
  max-width: 40em;
  padding: 0 10px 22px;
  font-size: 15.5px;
  line-height: 1.85;
  color: var(--slate);
}

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

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

.page-faq .faq-a-more {
  font-size: 14px;
  color: var(--gray-500);
}

.page-faq .faq-a-link a,
.page-faq .faq-a a {
  color: var(--blue);
  text-decoration: none;
  border-bottom: 1px solid var(--gray-200);
}

.page-faq .faq-a-link a:hover,
.page-faq .faq-a a:hover {
  border-bottom-color: var(--blue);
}

@media (min-width: 700px) {
  .page-faq .faq-q {
    grid-template-columns: 58px minmax(0, 1fr) 18px;
    gap: 14px;
    padding: 20px 12px;
  }

  .page-faq .faq-a {
    padding: 0 12px 24px 84px;
  }
}

/* ---------- 编号与口径速查 ---------- */
.page-faq .faq-head {
  margin-bottom: clamp(20px, 3vw, 32px);
}

.page-faq .faq-lookup {
  padding: var(--faq-gap) 0;
  border-bottom: var(--faq-line);
  scroll-margin-top: 72px;
}

.page-faq .faq-lookup-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(22px, 3vw, 34px);
  min-width: 0;
}

@media (min-width: 960px) {
  .page-faq .faq-lookup-grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 4fr);
  }
}

.page-faq .faq-lookup-main,
.page-faq .faq-lookup-side {
  min-width: 0;
}

.page-faq .faq-code-plate {
  border: 1px solid var(--ink);
  background: var(--paper-2);
  box-shadow: var(--shadow-plate);
  padding: clamp(18px, 3vw, 30px);
  margin-bottom: clamp(20px, 3vw, 30px);
}

.page-faq .faq-code-caption {
  margin: 0 0 12px;
  font-size: 11px;
  letter-spacing: .12em;
  color: var(--gray-500);
}

.page-faq .faq-code {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 6px;
  margin: 0 0 20px;
  font-family: var(--mono);
  font-size: clamp(19px, 4.2vw, 34px);
  font-weight: 600;
  letter-spacing: .04em;
  font-variant-numeric: tabular-nums;
  word-break: break-word;
}

.page-faq .faq-code-seg {
  padding: 3px 9px;
  border: 1px solid currentColor;
  line-height: 1.2;
}

.page-faq .faq-seg-blue { color: var(--blue); background: var(--pulse); }
.page-faq .faq-seg-orange { color: var(--orange); }
.page-faq .faq-seg-teal { color: var(--teal); }

.page-faq .faq-code-dot {
  color: var(--gray-200);
  font-size: .8em;
}

.page-faq .faq-code-legend {
  margin: 0 0 20px;
  border-top: var(--faq-line);
}

.page-faq .faq-code-row {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2px 16px;
  padding: 12px 0;
  border-bottom: var(--faq-line);
}

.page-faq .faq-code-row dt {
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: .08em;
  color: var(--ink);
}

.page-faq .faq-code-row dd {
  margin: 0;
  font-size: 14px;
  line-height: 1.7;
  color: var(--slate);
}

@media (min-width: 620px) {
  .page-faq .faq-code-row {
    grid-template-columns: 88px minmax(0, 1fr);
    align-items: baseline;
  }
}

.page-faq .faq-code-actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px;
}

.page-faq .faq-copy {
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: .06em;
  padding: 8px 14px;
  border: 1px solid var(--blue);
  background: var(--blue);
  color: var(--paper);
  cursor: pointer;
  transition: background .16s var(--ease), color .16s var(--ease);
}

.page-faq .faq-copy:hover {
  background: var(--ink);
  border-color: var(--ink);
}

.page-faq .faq-code-tip {
  font-size: 12px;
  color: var(--gray-500);
}

.page-faq .faq-lookup-side {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.page-faq .faq-mini {
  border: var(--faq-line);
  background: var(--paper-2);
  padding: 18px 18px 20px;
  border-top: 3px solid var(--blue);
}

.page-faq .faq-mini--flat {
  border-top-width: 1px;
  border-top-color: var(--gray-200);
  background: transparent;
  padding: 14px 18px;
}

.page-faq .faq-mini-num {
  margin: 0 0 8px;
  font-size: 11px;
  letter-spacing: .12em;
  color: var(--gray-500);
}

.page-faq .faq-mini-title {
  margin: 0 0 8px;
  font-size: 17px;
  font-weight: 800;
  letter-spacing: -0.01em;
  color: var(--ink);
}

.page-faq .faq-mini p {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.75;
  color: var(--slate);
}

.page-faq .faq-note,
.page-faq .ax-note {
  font-size: 13.5px;
  line-height: 1.75;
  color: var(--gray-500);
  margin: 0;
}

/* ---------- 常见误区 ---------- */
.page-faq .faq-myths {
  padding: var(--faq-gap) 0;
  border-bottom: var(--faq-line);
  scroll-margin-top: 72px;
}

.page-faq .faq-myth-list {
  display: flex;
  flex-direction: column;
  gap: 1px;
  background: var(--gray-200);
  border: var(--faq-line);
}

.page-faq .faq-myth {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1px;
  background: var(--gray-200);
}

.page-faq .faq-myth-cell {
  padding: 20px 18px 22px;
  background: var(--paper-2);
}

.page-faq .faq-myth-fix {
  background: var(--paper);
  border-left: 3px solid var(--teal);
}

.page-faq .faq-tag {
  display: inline-block;
  margin-bottom: 10px;
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: .08em;
  color: var(--gray-500);
  background: transparent;
  border: 0;
  padding: 0;
}

.page-faq .faq-tag--ink {
  color: var(--teal);
}

.page-faq .faq-myth-text {
  margin: 0;
  font-size: 15.5px;
  line-height: 1.8;
  color: var(--slate);
}

.page-faq .faq-myth-say .faq-myth-text {
  color: var(--ink);
  text-decoration: line-through;
  text-decoration-color: var(--gray-200);
  text-decoration-thickness: 1px;
}

@media (min-width: 780px) {
  .page-faq .faq-myth {
    grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
  }

  .page-faq .faq-myth-cell {
    padding: 24px 26px 26px;
  }
}

/* ---------- 联系与纠错 ---------- */
.page-faq .faq-help {
  padding: var(--faq-gap) 0 0;
  scroll-margin-top: 72px;
}

.page-faq .faq-help-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(24px, 4vw, 48px);
  min-width: 0;
}

@media (min-width: 960px) {
  .page-faq .faq-help-grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    align-items: start;
  }
}

.page-faq .faq-help-main { min-width: 0; }

.page-faq .faq-help-lede {
  max-width: 34em;
  margin: 0 0 24px;
  font-size: 16px;
  line-height: 1.8;
  color: var(--slate);
}

.page-faq .faq-contact-plate {
  border: 1px solid var(--ink);
  border-left: 4px solid var(--orange);
  background: var(--paper-2);
  padding: clamp(16px, 2.5vw, 24px);
  margin-bottom: 18px;
}

.page-faq .faq-contact-row {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2px;
  margin: 0;
  padding: 12px 0;
  border-bottom: var(--faq-line);
}

.page-faq .faq-contact-row:first-child { padding-top: 0; }
.page-faq .faq-contact-row:last-child {
  border-bottom: 0;
  padding-bottom: 0;
}

.page-faq .faq-contact-key {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: .1em;
  color: var(--gray-500);
}

.page-faq .faq-contact-val {
  font-size: 15.5px;
  line-height: 1.7;
  color: var(--ink);
  word-break: break-word;
}

.page-faq .faq-help-note {
  margin-bottom: 22px;
}

.page-faq .faq-help-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 16px;
}

.page-faq .faq-help-links {
  margin: 0;
  font-size: 13.5px;
  color: var(--gray-500);
}

.page-faq .faq-help-links a {
  color: var(--blue);
  text-decoration: none;
  border-bottom: 1px solid var(--gray-200);
}

.page-faq .faq-help-links a:hover {
  border-bottom-color: var(--blue);
}

/* ---------- 图版 ---------- */
.page-faq .faq-figure {
  margin: 0;
  border: var(--faq-line);
  background: var(--paper-2);
}

.page-faq .faq-figure .ax-img,
.page-faq .faq-figure img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
  aspect-ratio: 5 / 3;
  background: var(--paper);
}

.page-faq .faq-figure--tall .ax-img,
.page-faq .faq-figure--tall img {
  aspect-ratio: 3 / 2;
}

.page-faq .faq-figure .ax-img-cap {
  padding: 10px 14px;
  border-top: var(--faq-line);
  font-family: var(--mono);
  font-size: 12px;
  line-height: 1.7;
  color: var(--gray-500);
}

.page-faq .faq-lookup-main .faq-figure {
  margin-top: 0;
}

/* ---------- 动效回退 ---------- */
@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-item,
  .page-faq .faq-q-text,
  .page-faq .faq-arrow,
  .page-faq .faq-toc-link,
  .page-faq .faq-copy {
    transition: none;
  }
}
<<<END>>>