.page-faq {
  background: var(--paper);
  color: var(--ink);
  padding-bottom: clamp(40px, 7vw, 96px);
}

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

/* 页头 */
.page-faq .faq-head {
  padding: clamp(22px, 4vw, 44px) 0 clamp(20px, 3.4vw, 36px);
}

.page-faq .faq-head .page-title {
  margin: 14px 0 18px;
  max-width: 15em;
  font-size: clamp(30px, 5.4vw, 58px);
  line-height: 1.04;
  letter-spacing: -0.02em;
  font-weight: 300;
  color: var(--ink);
}

.page-faq .faq-head .page-lede {
  margin: 0;
  max-width: 34em;
  font-size: clamp(15.5px, 1.6vw, 18px);
  line-height: 1.75;
  color: var(--graphite);
}

.page-faq .faq-search {
  max-width: 460px;
  margin-top: clamp(22px, 3vw, 32px);
}

.page-faq .faq-search__label {
  display: block;
  margin-bottom: 8px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--graphite);
}

.page-faq .faq-search__input {
  width: 100%;
  padding: 10px 2px;
  border: 0;
  border-bottom: 2px solid var(--ink);
  background: transparent;
  font-family: var(--font-body);
  font-size: 16px;
  color: var(--ink);
  transition: border-color var(--dur) var(--ease);
}

.page-faq .faq-search__input::placeholder {
  color: var(--graphite);
  opacity: 0.75;
}

.page-faq .faq-search__input:focus {
  border-bottom-color: var(--brick);
  outline: 2px solid var(--brick);
  outline-offset: 4px;
}

.page-faq .faq-search__hint {
  margin: 10px 0 0;
  font-size: 13px;
  color: var(--graphite);
}

/* 六类分法 */
.page-faq .faq-map {
  margin-top: clamp(10px, 2vw, 20px);
  padding: clamp(26px, 4vw, 52px) 0;
  background: var(--sand);
  border-top: var(--rule);
  border-bottom: var(--rule);
}

.page-faq .faq-map__inner {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(20px, 3vw, 36px);
  align-items: center;
}

.page-faq .faq-map__text p {
  margin: 0 0 12px;
  max-width: 32em;
  font-size: 15.5px;
  line-height: 1.75;
  color: var(--graphite);
}

.page-faq .faq-map__text .section-title {
  margin: 8px 0 14px;
}

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

.page-faq .media__caption {
  margin-top: 10px;
  font-size: 13px;
  line-height: 1.6;
  color: var(--graphite);
}

/* 双栏 */
.page-faq .faq-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(26px, 3.5vw, 48px);
  padding-top: clamp(28px, 4vw, 48px);
}

.page-faq .faq-rail {
  padding-top: 4px;
}

.page-faq .faq-rail__title {
  margin: 0 0 14px;
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0.14em;
  color: var(--graphite);
}

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

.page-faq .faq-rail__item {
  border-top: var(--rule);
}

.page-faq .faq-rail__item:last-child {
  border-bottom: var(--rule);
}

.page-faq .faq-rail__link {
  display: flex;
  gap: 10px;
  align-items: baseline;
  padding: 12px 8px 12px 10px;
  border-left: 3px solid transparent;
  color: var(--indigo);
  font-size: 15px;
  line-height: 1.45;
  text-decoration: none;
  transition: color var(--dur) var(--ease), border-color var(--dur) var(--ease), background-color var(--dur) var(--ease);
}

.page-faq .faq-rail__link:hover,
.page-faq .faq-rail__link:focus-visible {
  color: var(--brick);
  border-left-color: var(--brick);
  background: var(--sand);
}

.page-faq .faq-rail__idx {
  flex: none;
  font-size: 11px;
  letter-spacing: 0.06em;
  color: var(--brick);
}

.page-faq .faq-rail__note {
  margin: 16px 0 0;
  font-size: 13px;
  line-height: 1.65;
  color: var(--graphite);
}

/* 问答分组 */
.page-faq .faq-cat {
  padding-bottom: clamp(26px, 3.5vw, 44px);
  scroll-margin-top: 18px;
}

.page-faq .faq-cat__head {
  display: flex;
  align-items: baseline;
  gap: 12px;
  padding-bottom: 10px;
  margin-bottom: 14px;
  border-bottom: 2px solid var(--ink);
}

.page-faq .faq-cat__num {
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--brick);
}

.page-faq .faq-cat__title {
  margin: 0;
  font-size: clamp(19px, 2.2vw, 26px);
  font-weight: 500;
  letter-spacing: -0.01em;
  color: var(--ink);
}

.page-faq .faq-cat--lead {
  padding: clamp(16px, 2.6vw, 30px);
  margin-bottom: clamp(26px, 3.5vw, 44px);
  background: var(--mist);
  border-left: 4px solid var(--brick);
}

.page-faq .faq-cat__lede {
  margin: 0 0 18px;
  font-size: 15.5px;
  line-height: 1.75;
  color: var(--ink);
}

.page-faq .faq-fig {
  margin: 0 0 20px;
}

/* 三步自查 */
.page-faq .step-list {
  margin: 0 0 18px;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 12px;
}

.page-faq .step {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 6px;
  padding: 14px 16px;
  background: var(--paper);
  border: var(--rule);
  border-left: 3px solid var(--indigo);
}

.page-faq .step__num {
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--brick);
}

.page-faq .step__title {
  margin: 0 0 6px;
  font-size: 15.5px;
  font-weight: 600;
  color: var(--ink);
}

.page-faq .step p {
  margin: 0;
  font-size: 15px;
  line-height: 1.7;
  color: var(--graphite);
}

.page-faq .notice {
  margin: 0 0 18px;
}

.page-faq .notice p {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.7;
}

/* 折叠问答 */
.page-faq .fold {
  border-bottom: var(--rule);
}

.page-faq .fold__summary {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 16px;
  padding: 14px 0;
  list-style: none;
  cursor: pointer;
  font-size: 16px;
  font-weight: 500;
  line-height: 1.5;
  color: var(--ink);
  transition: color var(--dur) var(--ease);
}

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

.page-faq .fold__summary::after {
  content: "+";
  flex: none;
  font-family: var(--font-mono);
  font-size: 18px;
  line-height: 1.2;
  color: var(--brick);
  transition: color var(--dur) var(--ease);
}

.page-faq .fold[open] > .fold__summary::after {
  content: "−";
}

.page-faq .fold__summary:hover,
.page-faq .fold__summary:focus-visible {
  color: var(--brick);
}

.page-faq .fold__body {
  padding: 0 0 16px;
  font-size: 15px;
  line-height: 1.75;
  color: var(--graphite);
}

.page-faq .fold__body p {
  margin: 0 0 10px;
  max-width: 40em;
}

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

.page-faq .fold__body a {
  color: var(--indigo-mid);
  text-decoration: none;
  border-bottom: 1px solid var(--line);
  transition: color var(--dur) var(--ease), border-color var(--dur) var(--ease);
}

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

/* 兜底区块 */
.page-faq .faq-cta {
  margin-top: clamp(10px, 2vw, 20px);
  padding: clamp(24px, 3.5vw, 44px);
  background: var(--indigo);
  border-left: 6px solid var(--brick);
  color: var(--paper);
}

.page-faq .faq-cta .eyebrow {
  color: var(--brick-soft);
}

.page-faq .faq-cta h2 {
  margin: 8px 0 18px;
  font-size: clamp(20px, 2.4vw, 28px);
  font-weight: 500;
  line-height: 1.25;
  color: var(--paper);
}

.page-faq .faq-cta__list {
  margin: 0 0 22px;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 9px;
}

.page-faq .faq-cta__list li {
  display: flex;
  gap: 10px;
  font-size: 15px;
  line-height: 1.65;
  color: var(--line);
}

.page-faq .faq-cta__idx {
  flex: none;
  font-size: 11px;
  letter-spacing: 0.06em;
  color: var(--brick-soft);
  padding-top: 3px;
}

.page-faq .faq-cta .btn--primary {
  background: var(--brick);
  border-color: var(--brick);
  color: #FFFFFF;
}

.page-faq .faq-cta .btn--primary:hover,
.page-faq .faq-cta .btn--primary:focus-visible {
  background: var(--brick-deep);
  border-color: var(--brick-deep);
}

/* 响应式 */
@media (min-width: 560px) {
  .page-faq .step {
    grid-template-columns: 74px minmax(0, 1fr);
    gap: 12px;
  }
}

@media (min-width: 860px) {
  .page-faq .faq-map__inner {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1.15fr);
  }
}

@media (min-width: 900px) {
  .page-faq .faq-layout {
    grid-template-columns: 250px minmax(0, 1fr);
    align-items: start;
  }

  .page-faq .faq-rail {
    position: sticky;
    top: 20px;
    padding-right: 20px;
    border-right: var(--rule);
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-rail__link,
  .page-faq .fold__summary,
  .page-faq .faq-search__input,
  .page-faq .fold__body a {
    transition: none;
  }
}
<<<END>>>