.page-faq {
  --faq-answer: rgba(246, 247, 249, 0.74);
  background: var(--charcoal);
  color: var(--cold);
  padding-bottom: clamp(56px, 8vw, 96px);
  overflow-x: hidden;
}

.page-faq .breadcrumb {
  padding-top: clamp(18px, 3vw, 28px);
}

.page-faq .breadcrumb-list {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  margin: 0;
  padding: 0;
  list-style: none;
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--steel);
}

.page-faq .breadcrumb-item a {
  color: var(--steel);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color 0.2s ease, border-color 0.2s ease;
}

.page-faq .breadcrumb-item a:hover,
.page-faq .breadcrumb-item a:focus-visible {
  color: var(--cold);
  border-bottom-color: var(--ember);
}

.page-faq .breadcrumb-sep {
  color: var(--line);
}

.page-faq .breadcrumb-current {
  color: var(--ember);
}

/* 首屏 */
.page-faq .faq-hero {
  display: grid;
  gap: var(--gap);
  padding-top: clamp(26px, 4vw, 48px);
  padding-bottom: clamp(32px, 5vw, 56px);
  border-bottom: 1px solid var(--line);
}

.page-faq .faq-hero-main {
  display: flex;
  flex-direction: column;
  gap: 16px;
  min-width: 0;
}

.page-faq .section-label {
  margin: 0;
  font-size: 11px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--mint);
}

.page-faq .faq-title {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(34px, 7.4vw, 68px);
  line-height: 1.04;
  letter-spacing: -0.02em;
  color: var(--cold);
  text-wrap: balance;
}

.page-faq .faq-lede {
  margin: 0;
  max-width: 54ch;
  font-size: 16px;
  line-height: 1.75;
  color: var(--faq-answer);
}

.page-faq .faq-filter {
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin-top: 6px;
  padding-top: 18px;
  border-top: 1px solid var(--line);
}

.page-faq .faq-filter-label {
  margin: 0;
  font-size: 11px;
  letter-spacing: 0.14em;
  color: var(--steel);
}

.page-faq .filter-bar {
  display: flex;
  flex-wrap: nowrap;
  gap: 8px;
  overflow-x: auto;
  padding-bottom: 4px;
  scrollbar-width: thin;
}

.page-faq .filter-btn {
  flex: 0 0 auto;
  appearance: none;
  min-height: 44px;
  padding: 12px 14px;
  background: transparent;
  border: 1px solid var(--line);
  border-radius: 0;
  color: var(--steel);
  font-family: var(--font-body);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.12em;
  cursor: pointer;
  transition: background 0.2s ease, color 0.2s ease, border-color 0.2s ease;
}

.page-faq .filter-btn:hover {
  color: var(--cold);
  border-color: var(--ember);
}

.page-faq .filter-btn:focus-visible {
  outline: 2px solid var(--mint);
  outline-offset: 2px;
}

.page-faq .filter-btn[aria-pressed="true"] {
  background: var(--ember);
  border-color: var(--mint);
  color: var(--charcoal);
}

/* 首屏图片 */
.page-faq .faq-hero-media {
  position: relative;
  margin: 0;
  min-width: 0;
}

.page-faq .faq-hero-media img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 12 / 7;
  object-fit: cover;
  clip-path: polygon(0 3%, 100% 0, 100% 97%, 0 100%);
}

.page-faq .faq-hero-media .glass-bar {
  position: absolute;
  left: 0;
  bottom: 6%;
  margin: 0;
  padding: 8px 12px;
  background: rgba(8, 9, 11, 0.56);
  backdrop-filter: blur(8px);
  border-top: 1px solid rgba(246, 247, 249, 0.18);
  border-right: 1px solid rgba(246, 247, 249, 0.18);
  font-size: 11px;
  letter-spacing: 0.12em;
  color: var(--mint);
}

/* 分组 */
.page-faq .faq-group {
  padding-top: clamp(34px, 5vw, 56px);
  padding-bottom: clamp(30px, 5vw, 52px);
  border-bottom: 1px solid var(--line);
}

.page-faq .faq-group:last-of-type {
  border-bottom: 0;
}

.page-faq .faq-group-head {
  display: flex;
  align-items: baseline;
  gap: 12px;
  padding-bottom: 14px;
}

.page-faq .faq-group-index {
  flex: 0 0 auto;
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--ember);
}

.page-faq .faq-group-title {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(22px, 4.4vw, 32px);
  line-height: 1.15;
  letter-spacing: -0.01em;
  color: var(--cold);
}

.page-faq .faq-group-rule {
  flex: 1 1 auto;
  min-width: 20px;
  height: 1px;
  background: var(--line);
}

.page-faq .faq-group-count {
  flex: 0 0 auto;
  font-size: 11px;
  letter-spacing: 0.1em;
  color: var(--steel);
}

/* 折叠问答 */
.page-faq .faq-item {
  border-top: 1px solid var(--line);
}

.page-faq .faq-item:last-of-type {
  border-bottom: 1px solid var(--line);
}

.page-faq .faq-q {
  display: grid;
  grid-template-columns: 30px minmax(0, 1fr) 20px;
  align-items: start;
  gap: 12px;
  padding: 16px 0;
  cursor: pointer;
  list-style: none;
}

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

.page-faq .faq-q:focus-visible {
  outline: 2px solid var(--mint);
  outline-offset: 4px;
}

.page-faq .faq-q-index {
  padding-top: 3px;
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--steel);
}

.page-faq .faq-q-text {
  font-size: 16px;
  font-weight: 600;
  line-height: 1.6;
  color: var(--cold);
  transition: color 0.2s ease;
}

.page-faq .faq-q:hover .faq-q-text {
  color: var(--mint);
}

.page-faq .faq-q-mark {
  position: relative;
  width: 20px;
  height: 20px;
  margin-top: 3px;
}

.page-faq .faq-q-mark::before,
.page-faq .faq-q-mark::after {
  content: "";
  position: absolute;
  background: var(--ember);
}

.page-faq .faq-q-mark::before {
  left: 0;
  top: 9px;
  width: 20px;
  height: 2px;
}

.page-faq .faq-q-mark::after {
  left: 9px;
  top: 0;
  width: 2px;
  height: 20px;
  transition: transform 0.2s ease, opacity 0.2s ease;
}

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

.page-faq .faq-a {
  padding: 0 0 18px 42px;
  border-left: 0 solid var(--ember);
}

.page-faq .faq-item[open] .faq-a {
  border-left: 3px solid var(--ember);
  padding-left: 39px;
}

.page-faq .faq-a p {
  margin: 0;
  max-width: 64ch;
  font-size: 15px;
  line-height: 1.8;
  color: var(--faq-answer);
}

/* 暖纸分组 */
.page-faq .faq-group--paper {
  --faq-answer: rgba(20, 22, 26, 0.76);
  background: var(--paper);
  color: var(--charcoal);
}

.page-faq .faq-group--paper .faq-group-title {
  color: var(--charcoal);
}

.page-faq .faq-group--paper .faq-group-index {
  color: var(--ember-deep);
}

.page-faq .faq-group--paper .faq-group-rule {
  background: rgba(20, 22, 26, 0.22);
}

.page-faq .faq-group--paper .faq-group-count {
  color: rgba(20, 22, 26, 0.6);
}

.page-faq .faq-group--paper .faq-item {
  border-top-color: rgba(20, 22, 26, 0.16);
}

.page-faq .faq-group--paper .faq-item:last-of-type {
  border-bottom-color: rgba(20, 22, 26, 0.16);
}

.page-faq .faq-group--paper .faq-q-text {
  color: var(--charcoal);
}

.page-faq .faq-group--paper .faq-q:hover .faq-q-text {
  color: var(--ember-deep);
}

.page-faq .faq-group--paper .faq-q-index {
  color: rgba(20, 22, 26, 0.55);
}

.page-faq .faq-group--paper .faq-link {
  border-color: rgba(20, 22, 26, 0.28);
  color: var(--charcoal);
}

.page-faq .faq-group--paper .faq-link:hover {
  border-color: var(--ember-deep);
  color: var(--ember-deep);
}

.page-faq .faq-group--paper .faq-links-label {
  color: rgba(20, 22, 26, 0.55);
}

/* 导出图示 */
.page-faq .faq-media-block {
  display: grid;
  gap: 14px;
  margin: 4px 0 24px;
  padding: 0;
}

.page-faq .faq-media-block img {
  display: block;
  width: 100%;
  max-width: 280px;
  height: auto;
  aspect-ratio: 3 / 4;
  object-fit: cover;
  clip-path: polygon(0 2%, 100% 0, 100% 98%, 0 100%);
}

.page-faq .faq-media-note {
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding: 12px 14px;
  border-left: 3px solid var(--ember);
  background: rgba(20, 22, 26, 0.05);
}

.page-faq .faq-media-note-key {
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--ember-deep);
}

.page-faq .faq-media-note-text {
  font-size: 14px;
  line-height: 1.7;
  color: rgba(20, 22, 26, 0.78);
}

/* 相关入口 */
.page-faq .faq-links {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  margin: 18px 0 0;
}

.page-faq .faq-links-label {
  font-size: 11px;
  letter-spacing: 0.14em;
  color: var(--steel);
}

.page-faq .faq-link {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  padding: 10px 14px;
  border: 1px solid var(--line);
  color: var(--cold);
  font-size: 12px;
  letter-spacing: 0.1em;
  text-decoration: none;
  transition: color 0.2s ease, border-color 0.2s ease;
}

.page-faq .faq-link:hover,
.page-faq .faq-link:focus-visible {
  border-color: var(--ember);
  color: var(--ember);
}

@media (min-width: 720px) {
  .page-faq .faq-media-block {
    grid-template-columns: 240px minmax(0, 1fr);
    align-items: start;
    gap: 20px;
  }

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

@media (min-width: 900px) {
  .page-faq .faq-hero {
    grid-template-columns: minmax(0, 1.18fr) minmax(0, 0.82fr);
    align-items: start;
    gap: clamp(24px, 3vw, 44px);
  }

  .page-faq .filter-bar {
    flex-wrap: wrap;
    overflow: visible;
    padding-bottom: 0;
  }

  .page-faq .faq-q {
    grid-template-columns: 48px minmax(0, 1fr) 24px;
    gap: 20px;
    padding: 20px 0;
  }

  .page-faq .faq-q-text {
    font-size: 17px;
  }

  .page-faq .faq-a {
    padding-left: 68px;
  }

  .page-faq .faq-item[open] .faq-a {
    padding-left: 65px;
  }

  .page-faq .faq-group-head {
    gap: 20px;
    padding-bottom: 18px;
  }

  .page-faq .faq-media-block {
    grid-template-columns: 300px minmax(0, 1fr);
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .filter-btn,
  .page-faq .faq-q-text,
  .page-faq .faq-q-mark::after,
  .page-faq .faq-link,
  .page-faq .breadcrumb-item a {
    transition: none;
  }
}
<<<END>>>