.page-faq {
  --faq-shadow: 0 10px 28px rgba(2, 8, 20, .45);
  --faq-glow: 0 0 0 2px rgba(64, 224, 208, .38);
}

.page-faq .breadcrumbs {
  padding-block: 18px 0;
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  display: grid;
  grid-template-columns: 1fr;
  gap: 28px;
  padding-block: clamp(22px, 4vw, 40px) clamp(30px, 5vw, 56px);
  border-bottom: 1px solid var(--line);
}

.page-faq .faq-hero__title {
  margin: 14px 0 16px;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(34px, 7.4vw, 68px);
  line-height: .96;
  letter-spacing: -.01em;
  color: var(--white);
  text-wrap: balance;
}

.page-faq .faq-hero__intro {
  margin: 0 0 22px;
  max-width: 46ch;
  font-family: var(--font-body);
  font-size: clamp(15px, 1.6vw, 17px);
  line-height: 1.75;
  color: var(--text-soft);
}

.page-faq .faq-search {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 11px 14px;
  background: var(--ink-800);
  border: 1px solid var(--line-strong);
  border-radius: var(--radius);
  transition: border-color var(--dur) var(--ease), box-shadow var(--dur) var(--ease);
}

.page-faq .faq-search:focus-within {
  border-color: var(--cyan);
  box-shadow: var(--faq-glow);
}

.page-faq .faq-search__icon {
  flex: none;
  width: 12px;
  height: 12px;
  border: 2px solid var(--cyan);
  border-radius: 50%;
  position: relative;
}

.page-faq .faq-search__icon::after {
  content: "";
  position: absolute;
  top: 9px;
  left: 8px;
  width: 6px;
  height: 2px;
  background: var(--cyan);
  transform: rotate(45deg);
  transform-origin: left center;
}

.page-faq .faq-search__input {
  flex: 1 1 auto;
  min-width: 0;
  background: transparent;
  border: 0;
  padding: 2px 0;
  font-family: var(--font-body);
  font-size: 14px;
  color: var(--white);
  outline: none;
}

.page-faq .faq-search__input::placeholder {
  color: var(--mist);
}

.page-faq .faq-search__hint {
  flex: none;
  font-size: 11px;
  letter-spacing: .08em;
  color: var(--mist);
  padding: 3px 6px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
}

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

.page-faq .faq-stats {
  display: flex;
  flex-wrap: wrap;
  gap: 0;
  margin: 26px 0 0;
  padding: 0;
  border-top: 1px solid var(--line);
}

.page-faq .faq-stats__item {
  flex: 1 1 33%;
  min-width: 96px;
  padding: 14px 12px 0 0;
}

.page-faq .faq-stats__key {
  margin: 0 0 4px;
  font-size: 12px;
  letter-spacing: .06em;
  color: var(--mist);
}

.page-faq .faq-stats__val {
  margin: 0;
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 26px;
  line-height: 1.1;
  color: var(--orange);
}

.page-faq .faq-stats__unit {
  margin-left: 4px;
  font-size: 12px;
  color: var(--text-soft);
  letter-spacing: 0;
}

.page-faq .faq-hero__media {
  margin: 0;
  border: 1px solid var(--line);
  box-shadow: var(--faq-shadow);
}

.page-faq .media__img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  object-fit: cover;
  aspect-ratio: 3 / 2;
  background: var(--ink-700);
}

.page-faq .media__caption {
  padding: 10px 14px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .05em;
  color: var(--mist);
  border-top: 1px solid var(--line);
}

/* ---------- 主体布局 ---------- */
.page-faq .faq-body {
  display: grid;
  grid-template-columns: 1fr;
  gap: 28px;
  padding-block: clamp(28px, 4vw, 44px) clamp(40px, 6vw, 72px);
}

/* ---------- 分类索引 ---------- */
.page-faq .faq-index__title {
  margin: 0 0 10px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .16em;
  color: var(--mist);
}

.page-faq .faq-index__list {
  display: flex;
  gap: 8px;
  margin: 0;
  padding: 0 0 4px;
  list-style: none;
  overflow-x: auto;
  scrollbar-width: thin;
}

.page-faq .faq-index__link {
  display: flex;
  align-items: baseline;
  gap: 8px;
  flex: none;
  padding: 9px 12px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--ink-800);
  color: var(--text-soft);
  text-decoration: none;
  font-size: 13px;
  white-space: nowrap;
  transition: border-color var(--dur) var(--ease), color var(--dur) var(--ease), transform var(--dur) var(--ease);
}

.page-faq .faq-index__link:hover {
  border-color: var(--cyan);
  color: var(--cyan-soft);
  transform: translateY(-2px);
}

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

.page-faq .faq-index__num {
  font-size: 11px;
  color: var(--orange);
}

.page-faq .faq-index__count {
  font-size: 11px;
  color: var(--mist);
}

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

/* ---------- 问答分组 ---------- */
.page-faq .faq-panels {
  min-width: 0;
  display: flex;
  flex-direction: column;
  gap: 34px;
}

.page-faq .faq-group {
  scroll-margin-top: 96px;
  border-top: 2px solid var(--line-strong);
  padding-top: 16px;
}

.page-faq .faq-group__head {
  display: flex;
  align-items: baseline;
  gap: 12px;
  flex-wrap: wrap;
}

.page-faq .faq-group__num {
  font-size: 13px;
  font-weight: 700;
  color: var(--orange);
  letter-spacing: .06em;
}

.page-faq .faq-group__title {
  margin: 0;
  flex: 1 1 auto;
  font-family: var(--font-heading);
  font-weight: 900;
  font-size: clamp(20px, 3.4vw, 27px);
  line-height: 1.2;
  color: var(--white);
}

.page-faq .faq-group__count {
  font-size: 11px;
  letter-spacing: .1em;
  color: var(--mist);
  padding: 3px 8px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
}

.page-faq .faq-group__lead {
  margin: 10px 0 6px;
  max-width: 54ch;
  font-size: 14px;
  line-height: 1.7;
  color: var(--mist);
}

.page-faq .faq-group--contact {
  border-top-color: var(--orange);
}

/* ---------- 手风琴 ---------- */
.page-faq .faq-item {
  border-bottom: 1px solid var(--line);
}

.page-faq .faq-item[open] {
  border-bottom-color: var(--line-strong);
}

.page-faq .faq-q {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 16px;
  padding: 15px 0;
  cursor: pointer;
  list-style: none;
  transition: color var(--dur) var(--ease);
}

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

.page-faq .faq-q:hover {
  color: var(--cyan-soft);
}

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

.page-faq .faq-q__text {
  margin: 0;
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 15px;
  line-height: 1.55;
  color: inherit;
}

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

.page-faq .faq-q__icon::before,
.page-faq .faq-q__icon::after {
  content: "";
  position: absolute;
  background: var(--cyan);
  transition: transform var(--dur) var(--ease), opacity var(--dur) var(--ease);
}

.page-faq .faq-q__icon::before {
  top: 6px;
  left: 0;
  width: 14px;
  height: 2px;
}

.page-faq .faq-q__icon::after {
  top: 0;
  left: 6px;
  width: 2px;
  height: 14px;
}

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

.page-faq .faq-a {
  padding: 0 0 18px;
  max-width: 68ch;
  font-size: 14px;
  line-height: 1.8;
  color: var(--text-soft);
}

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

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

.page-faq .faq-steps {
  margin: 10px 0 10px;
  padding-left: 0;
  list-style: none;
  counter-reset: faqstep;
}

.page-faq .faq-steps li {
  position: relative;
  padding-left: 30px;
  margin-bottom: 8px;
  counter-increment: faqstep;
}

.page-faq .faq-steps li::before {
  content: counter(faqstep, decimal-leading-zero);
  position: absolute;
  left: 0;
  top: 2px;
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--cyan);
  border: 1px solid var(--line-strong);
  border-radius: var(--radius);
  padding: 1px 4px;
}

.page-faq .faq-status-list {
  margin: 4px 0 12px;
  padding: 0;
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.page-faq .faq-status-list__item {
  display: flex;
  align-items: flex-start;
  gap: 9px;
  padding: 10px 12px;
  background: var(--ink-800);
  border: 1px solid var(--line);
  border-radius: var(--radius);
}

.page-faq .faq-status-list__item strong {
  color: var(--white);
}

.page-faq .faq-mail {
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--gold);
  word-break: break-all;
}

/* ---------- 收藏区块的两栏 ---------- */
.page-faq .faq-split {
  display: grid;
  grid-template-columns: 1fr;
  gap: 20px;
  margin-top: 4px;
}

.page-faq .faq-split__media {
  margin: 0;
  border: 1px solid var(--line);
  background: var(--ink-800);
}

/* ---------- 邮箱快捷条 ---------- */
.page-faq .faq-mailbar {
  display: grid;
  grid-template-columns: 1fr;
  gap: 20px;
  margin-bottom: clamp(40px, 6vw, 72px);
  padding: clamp(20px, 3.4vw, 32px);
  background: var(--ink-800);
  border: 1px solid var(--line-strong);
  border-left: 3px solid var(--orange);
  border-radius: var(--radius);
  box-shadow: var(--faq-shadow);
}

.page-faq .faq-mailbar__title {
  margin: 10px 0 8px;
  font-family: var(--font-heading);
  font-weight: 900;
  font-size: clamp(20px, 3.6vw, 28px);
  line-height: 1.25;
  color: var(--white);
}

.page-faq .faq-mailbar__desc {
  margin: 0;
  max-width: 52ch;
  font-size: 14px;
  line-height: 1.75;
  color: var(--mist);
}

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

.page-faq .faq-mailbar__mail {
  flex: 1 1 100%;
  margin: 0 0 2px;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: .02em;
  color: var(--cyan-soft);
  word-break: break-all;
}

/* ---------- 平板及以上 ---------- */
@media (min-width: 760px) {
  .page-faq .faq-split {
    grid-template-columns: minmax(0, 1.25fr) minmax(0, .75fr);
    align-items: start;
  }

  .page-faq .faq-split__media {
    position: sticky;
    top: 96px;
  }

  .page-faq .faq-mailbar {
    grid-template-columns: minmax(0, 1.4fr) minmax(0, 1fr);
    align-items: center;
    gap: 28px;
  }

  .page-faq .faq-mailbar__actions {
    justify-content: flex-end;
  }
}

/* ---------- 桌面：左索引 + 右问答 ---------- */
@media (min-width: 980px) {
  .page-faq .faq-hero {
    grid-template-columns: minmax(0, 1.06fr) minmax(0, .94fr);
    align-items: end;
    gap: clamp(32px, 4vw, 56px);
  }

  .page-faq .faq-body {
    grid-template-columns: 244px minmax(0, 1fr);
    gap: clamp(28px, 4vw, 56px);
  }

  .page-faq .faq-index {
    position: sticky;
    top: 96px;
    align-self: start;
    padding-right: 18px;
    border-right: 1px solid var(--line);
  }

  .page-faq .faq-index__list {
    flex-direction: column;
    gap: 0;
    overflow: visible;
    padding: 0;
    border-top: 1px solid var(--line);
  }

  .page-faq .faq-index__link {
    background: transparent;
    border: 0;
    border-bottom: 1px solid var(--line);
    border-radius: 0;
    padding: 12px 0;
    width: 100%;
    white-space: normal;
    transform: none;
    justify-content: flex-start;
  }

  .page-faq .faq-index__link:hover {
    transform: none;
    padding-left: 6px;
    border-bottom-color: var(--cyan);
  }

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

  .page-faq .faq-index__back {
    display: inline-flex;
    margin-top: 16px;
    width: 100%;
    justify-content: center;
  }
}

@media (min-width: 1180px) {
  .page-faq .faq-q__text {
    font-size: 16px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-index__link,
  .page-faq .faq-q,
  .page-faq .faq-q__icon::before,
  .page-faq .faq-q__icon::after {
    transition: none;
  }

  .page-faq .faq-index__link:hover {
    transform: none;
  }
}
<<<END>>>