.page-faq {
  --faq-stack: clamp(26px, 4vw, 52px);
  --faq-card-pad: clamp(16px, 2vw, 22px);
}

.page-faq__crumb {
  padding-top: clamp(16px, 2vw, 28px);
}

.page-faq .mb-page-head {
  padding-bottom: clamp(8px, 1.5vw, 18px);
}

/* ---------- 首屏 ---------- */
.page-faq .faq-head {
  display: grid;
  gap: 30px;
  align-items: start;
}

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

.page-faq .faq-head__figure .mb-figure__frame {
  border: 1px solid var(--ice-300);
  box-shadow: var(--shadow-paper);
  background: var(--ink-900);
}

.page-faq .faq-head__figure img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
}

.page-faq .faq-jump {
  list-style: none;
  margin: 26px 0 0;
  padding: 0;
  display: grid;
  gap: 8px;
}

.page-faq .faq-jump li {
  margin: 0;
}

.page-faq .faq-jump a {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 11px 14px;
  border: 1px solid var(--ice-300);
  background: var(--ice-100);
  color: var(--ink-900);
  font-family: var(--font-head);
  font-weight: 700;
  font-size: 0.98rem;
  letter-spacing: 0.01em;
  text-decoration: none;
  transition: transform 0.18s ease, border-color 0.18s ease, background-color 0.18s ease;
}

.page-faq .faq-jump a:hover,
.page-faq .faq-jump a:focus-visible {
  border-color: var(--cyan-read);
  background: var(--paper);
  transform: translateX(3px);
}

.page-faq .faq-jump .mb-num {
  color: var(--cyan-read);
  font-size: 0.82rem;
  letter-spacing: 0.06em;
}

/* ---------- 数据面板 ---------- */
.page-faq .faq-panel {
  padding: clamp(20px, 3vw, 34px);
}

.page-faq .faq-panel .mb-metric__value {
  color: var(--paper);
}

.page-faq .faq-panel .mb-metric--amber .mb-metric__value {
  color: var(--amber);
}

/* ---------- 筛选与分组 ---------- */
.page-faq .faq-tagbar {
  margin-bottom: clamp(24px, 3vw, 38px);
}

.page-faq .faq-group {
  margin-bottom: var(--faq-stack);
}

.page-faq .faq-group[hidden] {
  display: none;
}

.page-faq .faq-group__head {
  margin-bottom: 20px;
}

.page-faq .faq-group__head .mb-h2 {
  margin: 14px 0 10px;
}

.page-faq .faq-group__intro {
  margin: 0;
  max-width: 48ch;
  color: var(--ink-700);
  font-size: 0.98rem;
}

.page-faq .faq-list {
  display: grid;
  gap: 14px;
  align-content: start;
}

/* ---------- 单条问答 ---------- */
.page-faq .faq-item {
  margin: 0;
  background: var(--paper);
  border: 1px solid var(--ice-300);
  border-left: 4px solid var(--frost-700);
  box-shadow: var(--shadow-paper);
  transition: box-shadow 0.18s ease, border-color 0.18s ease;
}

.page-faq .faq-item:hover {
  box-shadow: var(--shadow-paper-hover);
}

.page-faq .faq-item[open] {
  border-left-color: var(--cyan-read);
}

.page-faq .faq-item__q {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: var(--faq-card-pad);
  margin: 0;
  cursor: pointer;
  list-style: none;
  font-family: var(--font-head);
  font-weight: 700;
  font-size: 1.02rem;
  line-height: 1.5;
  color: var(--ink-900);
}

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

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

.page-faq .faq-item__code {
  flex: none;
  font-size: 0.78rem;
  letter-spacing: 0.08em;
  color: var(--frost-700);
}

.page-faq .faq-item__qtext {
  flex: 1 1 auto;
}

.page-faq .faq-item__caret {
  flex: none;
  color: var(--cyan-read);
  transition: transform 0.2s ease;
}

.page-faq .faq-item[open] .faq-item__caret {
  transform: rotate(90deg);
}

.page-faq .faq-item__a {
  margin: 0;
  padding: 0 var(--faq-card-pad) calc(var(--faq-card-pad) + 4px);
  border-top: 1px dashed var(--ice-300);
  padding-top: 14px;
  color: var(--ink-700);
  font-size: 0.97rem;
  line-height: 1.85;
}

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

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

.page-faq .faq-item__a .mb-num {
  color: var(--amber-deep);
  font-weight: 700;
}

.page-faq .faq-item__a ul {
  list-style: none;
  margin: 12px 0 10px;
  padding: 0;
  display: grid;
  gap: 7px;
}

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

.page-faq .faq-item__a li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.72em;
  width: 6px;
  height: 6px;
  background: var(--cyan-read);
  transform: rotate(45deg);
}

.page-faq .faq-item__a strong {
  color: var(--ink-900);
}

.page-faq .faq-item__more {
  margin-top: 12px;
}

.page-faq .faq-item__a a {
  color: var(--frost-700);
  text-decoration: underline;
  text-underline-offset: 3px;
}

/* ---------- 收尾联系 ---------- */
.page-faq .faq-close {
  display: grid;
  gap: 32px;
  align-items: start;
}

.page-faq .faq-close .mb-figure {
  margin: 0;
}

.page-faq .faq-close .mb-figure__frame {
  border: 1px solid var(--ice-300);
  box-shadow: var(--shadow-paper);
  background: var(--ink-900);
}

.page-faq .faq-close .mb-figure img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
}

.page-faq .faq-close__text .mb-h2 {
  margin: 12px 0 14px;
}

.page-faq .faq-close__text > p {
  margin: 0 0 6px;
  max-width: 52ch;
  color: var(--ink-700);
  line-height: 1.85;
}

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

.page-faq .faq-contact-list li {
  display: grid;
  grid-template-columns: 72px 1fr;
  gap: 12px;
  align-items: baseline;
  padding: 11px 0;
  border-bottom: 1px dashed var(--ice-300);
}

.page-faq .faq-contact-list li:first-child {
  border-top: 1px dashed var(--ice-300);
}

.page-faq .faq-contact-key {
  font-size: 0.82rem;
  letter-spacing: 0.1em;
  color: var(--frost-700);
  text-transform: uppercase;
}

.page-faq .faq-contact-val {
  color: var(--ink-900);
  font-weight: 700;
  overflow-wrap: anywhere;
}

.page-faq .faq-contact-val.mb-num {
  letter-spacing: 0.01em;
}

.page-faq .faq-close__actions {
  margin-top: 26px;
}

/* ---------- 响应式 ---------- */
@media (min-width: 560px) {
  .page-faq .faq-jump {
    grid-template-columns: 1fr 1fr;
  }
}

@media (min-width: 900px) {
  .page-faq .faq-head {
    grid-template-columns: 1.1fr 0.9fr;
    gap: clamp(36px, 5vw, 68px);
  }

  .page-faq .faq-close {
    grid-template-columns: 5fr 7fr;
    gap: clamp(36px, 5vw, 60px);
    align-items: center;
  }

  .page-faq .faq-close__actions {
    display: flex;
    gap: 14px;
  }
}

@media (min-width: 980px) {
  .page-faq .faq-group {
    display: grid;
    grid-template-columns: minmax(200px, 4fr) 7fr;
    gap: clamp(32px, 4vw, 56px);
    align-items: start;
  }

  .page-faq .faq-group__head {
    position: sticky;
    top: 32px;
    margin-bottom: 0;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-item,
  .page-faq .faq-item__caret,
  .page-faq .faq-jump a {
    transition: none;
  }

  .page-faq .faq-jump a:hover,
  .page-faq .faq-jump a:focus-visible {
    transform: none;
  }

  .page-faq .faq-item[open] .faq-item__caret {
    transform: rotate(90deg);
  }
}
<<<END>>>