.page-faq {
  --faq-line: rgba(11, 27, 43, .14);
  --faq-line-strong: rgba(11, 27, 43, .28);
  --faq-copper: #B4884B;
  --faq-copper-soft: rgba(180, 136, 75, .35);
  --faq-copper-tint: rgba(224, 199, 154, .38);
  --faq-panel: #ECE8E1;
  --faq-paper: #F7F5F1;
  --faq-cinnabar: #C0402A;
  --faq-ease: cubic-bezier(0.22, 0.61, 0.36, 1);
  --faq-rail: 56px;
  background: var(--paper-50);
  color: var(--ink-900);
  font-family: var(--font-body);
  padding-bottom: 0;
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  padding: 28px 0 12px;
}

.page-faq .faq-hero__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 28px;
  align-items: start;
  padding: 26px 0 30px;
  border-top: 1px solid var(--faq-line);
}

.page-faq .faq-hero__copy .h1 {
  margin: 10px 0 18px;
  max-width: 20ch;
  color: var(--ink-700);
}

.page-faq .faq-hero__copy .lede {
  max-width: 56ch;
  color: var(--ink-900);
  font-size: 1rem;
  line-height: 1.75;
  margin: 0;
}

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

.page-faq .faq-hero__media img,
.page-faq .faq-inline-media img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
  border: 1px solid var(--faq-line);
  box-shadow: 0 1px 2px rgba(11, 27, 43, .08);
}

.page-faq .faq-hero__media .media__caption,
.page-faq .faq-inline-media .media__caption {
  display: block;
  margin-top: 8px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .04em;
  color: var(--stone-500);
}

/* ---------- 分类索引条 ---------- */
.page-faq .faq-index {
  display: grid;
  grid-template-columns: 1fr;
  border-top: 1px solid var(--faq-line-strong);
  border-bottom: 1px solid var(--faq-line-strong);
}

.page-faq .faq-index__item {
  display: flex;
  align-items: baseline;
  gap: 12px;
  padding: 14px 12px;
  border: 0;
  border-top: 1px solid var(--faq-line);
  background: transparent;
  text-align: left;
  cursor: pointer;
  color: var(--ink-900);
  font-family: inherit;
  transition: background-color 180ms var(--faq-ease), padding-left 180ms var(--faq-ease);
}

.page-faq .faq-index__item:first-child {
  border-top: 0;
}

.page-faq .faq-index__item:hover,
.page-faq .faq-index__item:focus-visible {
  background: var(--faq-panel);
}

.page-faq .faq-index__item[aria-current="true"] {
  background: var(--faq-panel);
  box-shadow: inset 3px 0 0 var(--faq-copper);
  padding-left: 18px;
}

.page-faq .faq-index__item:focus-visible {
  outline: 1px solid var(--faq-copper);
  outline-offset: -1px;
}

.page-faq .faq-index__num {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .04em;
  color: var(--faq-copper);
}

.page-faq .faq-index__label {
  font-size: .95rem;
  font-weight: 500;
  color: var(--ink-700);
}

.page-faq .faq-index__count {
  margin-left: auto;
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--stone-500);
}

/* ---------- 主体 ---------- */
.page-faq .faq-body {
  padding-bottom: 8px;
}

/* ---------- 单个分类组 ---------- */
.page-faq .faq-group {
  display: grid;
  grid-template-columns: 1fr;
  gap: 18px;
  padding: 56px 0 8px;
  border-top: 1px solid var(--faq-line);
  scroll-margin-top: calc(var(--header-h) + 16px);
}

.page-faq .faq-group:first-child {
  border-top: 0;
  padding-top: 40px;
}

.page-faq .faq-group__rail {
  display: none;
}

.page-faq .faq-group__num {
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: .18em;
  color: var(--faq-copper);
  writing-mode: horizontal-tb;
}

.page-faq .faq-group__rule {
  display: block;
  width: 1px;
  flex: 1;
  background: var(--faq-copper-soft);
}

.page-faq .faq-group__head {
  border-left: 2px solid var(--faq-copper);
  padding-left: 16px;
}

.page-faq .faq-group__head .h2 {
  margin: 0 0 10px;
  color: var(--ink-700);
}

.page-faq .faq-group__intro {
  margin: 0;
  max-width: 62ch;
  font-size: .95rem;
  line-height: 1.75;
  color: var(--stone-500);
}

.page-faq .faq-group__foot {
  margin: 22px 0 0;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .04em;
  color: var(--stone-500);
}

.page-faq .faq-group__foot a {
  color: var(--ink-500);
  text-decoration: underline;
  text-underline-offset: 3px;
  text-decoration-color: var(--faq-copper-soft);
}

.page-faq .faq-group__foot a:hover {
  color: var(--ink-700);
  text-decoration-color: var(--faq-copper);
}

/* ---------- 折叠条目 ---------- */
.page-faq .faq-list {
  margin-top: 24px;
  border-top: 1px solid var(--faq-line-strong);
}

.page-faq .faq-item {
  border-bottom: 1px solid var(--faq-line);
  border-left: 2px solid transparent;
  transition: border-left-color 220ms var(--faq-ease), background-color 220ms var(--faq-ease);
}

.page-faq .faq-item[open] {
  border-left-color: var(--faq-copper);
  background: rgba(236, 232, 225, .45);
}

.page-faq .faq-item__q {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  padding: 16px 14px 16px 16px;
  cursor: pointer;
  list-style: none;
  font-size: 1rem;
  font-weight: 500;
  line-height: 1.55;
  color: var(--ink-900);
}

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

.page-faq .faq-item__q:focus-visible {
  outline: 1px solid var(--faq-copper);
  outline-offset: -2px;
}

.page-faq .faq-item__q-text {
  flex: 1;
}

.page-faq .faq-item__mark {
  position: relative;
  flex: none;
  width: 14px;
  height: 14px;
  margin-top: 5px;
}

.page-faq .faq-item__mark::before,
.page-faq .faq-item__mark::after {
  content: "";
  position: absolute;
  background: var(--faq-copper);
  transition: transform 200ms var(--faq-ease), opacity 200ms var(--faq-ease);
}

.page-faq .faq-item__mark::before {
  left: 0;
  top: 6px;
  width: 14px;
  height: 1px;
}

.page-faq .faq-item__mark::after {
  top: 0;
  left: 6px;
  width: 1px;
  height: 14px;
}

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

.page-faq .faq-item__a {
  padding: 0 14px 20px 16px;
  animation: faqOpen 260ms var(--faq-ease) both;
}

.page-faq .faq-item__a p {
  margin: 0;
  max-width: 68ch;
  font-size: .95rem;
  line-height: 1.75;
  color: var(--ink-900);
}

.page-faq .faq-item__a a {
  color: var(--ink-500);
  text-decoration: underline;
  text-underline-offset: 3px;
  text-decoration-color: var(--faq-copper-soft);
}

.page-faq .faq-item__a a:hover {
  color: var(--ink-700);
  text-decoration-color: var(--faq-copper);
}

@keyframes faqOpen {
  from {
    opacity: 0;
    transform: translateY(-4px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* ---------- 答案里的数字强调 ---------- */
.page-faq .faq-num {
  font-family: var(--font-mono);
  font-size: .92em;
  letter-spacing: .02em;
  color: var(--ink-700);
  background: var(--faq-copper-tint);
  padding: 1px 6px;
  border-radius: 2px;
}

/* ---------- 排障图 ---------- */
.page-faq .faq-inline-media {
  margin: 24px 0 0;
}

/* ---------- 底部导出区 ---------- */
.page-faq .faq-outro {
  margin-top: 64px;
  padding: 56px 0 64px;
  background: var(--ink-900);
  color: var(--paper-50);
  border-top: 1px solid var(--faq-copper);
}

.page-faq .faq-outro .eyebrow {
  color: var(--copper-200);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .1em;
  margin: 0 0 12px;
}

.page-faq .faq-outro .h2 {
  margin: 0 0 14px;
  color: var(--paper-50);
  max-width: 22ch;
}

.page-faq .faq-outro .prose {
  margin: 0;
  max-width: 58ch;
  font-size: .95rem;
  line-height: 1.75;
  color: rgba(247, 245, 241, .78);
}

.page-faq .faq-outro__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 28px;
  align-items: start;
}

.page-faq .faq-outro__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.page-faq .faq-outro__actions .btn {
  border-color: rgba(247, 245, 241, .28);
  color: var(--paper-50);
  background: transparent;
}

.page-faq .faq-outro__actions .btn:hover {
  border-color: var(--copper-200);
  color: var(--copper-200);
}

.page-faq .faq-outro__actions .btn--copper {
  border-color: var(--copper-500);
  color: var(--copper-200);
}

.page-faq .faq-outro__actions .btn--copper:hover {
  background: var(--copper-500);
  color: var(--ink-900);
}

/* ---------- 响应式 ---------- */
@media (min-width: 720px) {
  .page-faq .faq-index {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-faq .faq-index__item:nth-child(2) {
    border-top: 0;
  }

  .page-faq .faq-index__item:nth-child(odd) {
    border-right: 1px solid var(--faq-line);
  }

  .page-faq .faq-hero__grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    gap: 40px;
  }

  .page-faq .faq-outro__grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    gap: 40px;
  }
}

@media (min-width: 1000px) {
  .page-faq .faq-hero {
    padding-top: 36px;
  }

  .page-faq .faq-hero__grid {
    padding: 36px 0 40px;
  }

  .page-faq .faq-index {
    grid-template-columns: repeat(5, minmax(0, 1fr));
  }

  .page-faq .faq-index__item {
    border-top: 0;
    border-right: 1px solid var(--faq-line);
    flex-direction: column;
    align-items: flex-start;
    gap: 8px;
    padding: 18px 16px;
  }

  .page-faq .faq-index__item:last-child {
    border-right: 0;
  }

  .page-faq .faq-index__item[aria-current="true"] {
    padding-left: 22px;
  }

  .page-faq .faq-index__count {
    margin-left: 0;
  }

  .page-faq .faq-index__item:hover {
    background: var(--faq-panel);
  }

  .page-faq .faq-group {
    grid-template-columns: var(--faq-rail) minmax(0, 1fr);
    gap: 32px;
    padding: 72px 0 8px;
  }

  .page-faq .faq-group:first-child {
    padding-top: 48px;
  }

  .page-faq .faq-group__rail {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 14px;
    padding-top: 6px;
  }

  .page-faq .faq-group__num {
    writing-mode: vertical-rl;
    text-orientation: mixed;
  }

  .page-faq .faq-group__head {
    padding-left: 20px;
  }

  .page-faq .faq-item__q {
    padding: 20px 14px 20px 20px;
  }

  .page-faq .faq-item__a {
    padding: 0 72px 24px 20px;
  }

  .page-faq .faq-inline-media {
    margin-top: 32px;
  }
}

@media (min-width: 1200px) {
  .page-faq .faq-group {
    gap: 48px;
  }

  .page-faq .faq-group__head {
    padding-left: 24px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-index__item,
  .page-faq .faq-item,
  .page-faq .faq-item__mark::before,
  .page-faq .faq-item__mark::after {
    transition: none;
  }

  .page-faq .faq-item__a {
    animation: none;
  }
}
<<<END>>>