.page-faq {
  --faq-answer: #F1EBDE;
  --faq-rule: #CFC8B9;
  --faq-grid-line: rgba(14, 59, 50, 0.045);
  background: var(--hth-paper);
  color: var(--hth-ink);
}

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

/* ---------- 首屏 ---------- */
.faq-hero {
  position: relative;
  overflow: hidden;
  padding: 30px 0 40px;
  border-bottom: 1px solid var(--hth-line);
  background-image:
    linear-gradient(180deg, rgba(232, 220, 194, 0.55) 0%, rgba(247, 245, 240, 0) 72%),
    repeating-linear-gradient(90deg, var(--faq-grid-line) 0 1px, transparent 1px 88px);
}

.faq-hero__texture {
  position: absolute;
  inset: 0;
  z-index: 0;
  pointer-events: none;
}

.faq-hero__texture img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.14;
}

.faq-hero__inner {
  position: relative;
  z-index: 1;
}

.faq-hero__eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin: 0 0 16px;
  padding: 5px 10px;
  border: 1px solid var(--hth-line);
  background: var(--hth-paper);
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--hth-red-deep);
}

.faq-hero__dot {
  width: 7px;
  height: 7px;
  background: var(--hth-red);
}

.faq-hero__title {
  margin: 0 0 16px;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(1.95rem, 7.2vw, 3.5rem);
  line-height: 1.06;
  letter-spacing: -0.02em;
  color: var(--hth-ink-green);
}

.faq-hero__lead {
  max-width: 60ch;
  margin: 0;
  font-size: 1rem;
  line-height: 1.85;
  color: var(--hth-ink);
}

.faq-hero__meta {
  max-width: 64ch;
  margin: 12px 0 0;
  font-size: 0.8125rem;
  line-height: 1.75;
  color: var(--hth-gray);
}

.faq-hero__meta a {
  color: var(--hth-red-deep);
  text-decoration: none;
  border-bottom: 1px solid rgba(160, 12, 36, 0.35);
  transition: border-color var(--dur) var(--ease), color var(--dur) var(--ease);
}

.faq-hero__meta a:hover,
.faq-hero__meta a:focus-visible {
  border-bottom-color: var(--hth-red);
  color: var(--hth-red);
}

.faq-hero__meta a:focus-visible {
  outline: 2px solid var(--hth-sand);
  outline-offset: 2px;
}

/* ---------- 三枚索引 ---------- */
.faq-index {
  display: flex;
  gap: 12px;
  margin: 30px 0 0;
  padding: 0 0 6px;
  list-style: none;
  overflow-x: auto;
  scroll-snap-type: x mandatory;
  scrollbar-width: thin;
}

.faq-index > li {
  flex: 0 0 78%;
  scroll-snap-align: start;
}

.faq-index__item {
  position: relative;
  display: block;
  height: 100%;
  padding: 18px 16px 20px;
  border: 1px solid var(--hth-line);
  background: var(--hth-paper);
  color: var(--hth-ink);
  text-decoration: none;
  overflow: hidden;
  transition: border-color var(--dur) var(--ease), color var(--dur) var(--ease);
}

.faq-index__item::before {
  content: "";
  position: absolute;
  inset: 0;
  background: var(--hth-red);
  transform: scaleX(0);
  transform-origin: left center;
  transition: transform var(--dur) var(--ease);
}

.faq-index__item:hover::before,
.faq-index__item:focus-visible::before {
  transform: scaleX(1);
}

.faq-index__item:hover,
.faq-index__item:focus-visible {
  color: var(--hth-paper);
  border-color: var(--hth-red-deep);
}

.faq-index__item:focus-visible {
  outline: 2px solid var(--hth-sand);
  outline-offset: 2px;
}

.faq-index__item[aria-current="true"] {
  border-color: var(--hth-red);
}

.faq-index__num,
.faq-index__title,
.faq-index__desc {
  position: relative;
  z-index: 1;
  display: block;
}

.faq-index__num {
  font-family: var(--font-mono);
  font-size: 1.9rem;
  font-weight: 600;
  line-height: 1;
  color: var(--hth-red);
  transition: color var(--dur) var(--ease);
}

.faq-index__item:hover .faq-index__num,
.faq-index__item:focus-visible .faq-index__num {
  color: var(--hth-paper);
}

.faq-index__title {
  margin-top: 10px;
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 1.15rem;
  line-height: 1.35;
}

.faq-index__desc {
  margin-top: 6px;
  font-size: 0.8125rem;
  line-height: 1.7;
  color: var(--hth-gray);
  transition: color var(--dur) var(--ease);
}

.faq-index__item:hover .faq-index__desc,
.faq-index__item:focus-visible .faq-index__desc {
  color: rgba(247, 245, 240, 0.82);
}

/* ---------- 分组 ---------- */
.faq-group {
  padding: 40px 0;
  border-top: 1px solid var(--hth-line);
}

.faq-hero + .faq-group {
  border-top: 0;
  padding-top: 34px;
}

.faq-group--last {
  padding-bottom: 52px;
}

.faq-head {
  margin-bottom: 22px;
}

.faq-group:target .hth-section-head__title {
  box-shadow: 0 8px 0 -6px var(--hth-sand);
}

.faq-group__body--media {
  display: grid;
  gap: 22px;
}

/* ---------- 折叠条 ---------- */
.faq-list {
  margin: 0;
  padding: 0;
}

.faq-item {
  padding: 0 14px;
  border-top: 1px solid var(--hth-line);
  transition: background var(--dur) var(--ease), box-shadow var(--dur) var(--ease);
}

.faq-item:last-child {
  border-bottom: 1px solid var(--hth-line);
}

.faq-item[open] {
  background: var(--faq-answer);
  box-shadow: inset 2px 0 0 var(--hth-sand);
}

.faq-item__q {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 16px 0;
  cursor: pointer;
  list-style: none;
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 1.0625rem;
  line-height: 1.5;
  color: var(--hth-ink);
  transition: color var(--dur) var(--ease);
}

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

.faq-item__q:hover {
  color: var(--hth-red-deep);
}

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

.faq-item__num {
  flex: 0 0 auto;
  padding-top: 4px;
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  font-weight: 500;
  color: var(--hth-gray);
}

.faq-item__text {
  flex: 1 1 auto;
  min-width: 0;
}

.faq-item__sign {
  position: relative;
  flex: 0 0 14px;
  width: 14px;
  height: 14px;
  margin-top: 6px;
}

.faq-item__sign::before,
.faq-item__sign::after {
  content: "";
  position: absolute;
  background: var(--hth-red);
  transition: transform var(--dur) var(--ease), opacity var(--dur) var(--ease);
}

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

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

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

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

.faq-item__a > :first-child {
  margin-top: 0;
}

.faq-item__a p {
  max-width: 64ch;
  margin: 0 0 12px;
  font-size: 0.9375rem;
  line-height: 1.85;
  color: var(--hth-ink);
}

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

.faq-item__a a {
  color: var(--hth-red-deep);
  text-decoration: none;
  border-bottom: 1px solid rgba(160, 12, 36, 0.35);
  transition: border-color var(--dur) var(--ease), color var(--dur) var(--ease);
}

.faq-item__a a:hover,
.faq-item__a a:focus-visible {
  color: var(--hth-red);
  border-bottom-color: var(--hth-red);
}

.faq-item__a a:focus-visible {
  outline: 2px solid var(--hth-sand);
  outline-offset: 2px;
}

.faq-item__more {
  font-size: 0.8125rem !important;
  color: var(--hth-gray) !important;
}

.faq-field,
.faq-mono {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: 0.875rem;
  color: var(--hth-ink-green);
}

.faq-field {
  padding: 1px 6px;
  border: 1px solid var(--faq-rule);
  background: var(--hth-paper);
}

.faq-mono {
  white-space: nowrap;
}

/* ---------- 无边框两列字段表 ---------- */
.faq-spec {
  margin: 4px 0 14px;
  padding: 0;
  border-top: 1px solid var(--faq-rule);
}

.faq-spec__row {
  display: grid;
  grid-template-columns: 4.6rem minmax(0, 1fr);
  gap: 12px;
  padding: 10px 0;
  border-bottom: 1px solid var(--faq-rule);
}

.faq-spec dt {
  padding-top: 2px;
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--hth-ink-green);
}

.faq-spec dd {
  margin: 0;
  font-size: 0.9375rem;
  line-height: 1.75;
  color: var(--hth-ink);
}

/* ---------- 配图 ---------- */
.faq-shot {
  margin: 0;
  border: 1px solid var(--hth-line);
  background: var(--hth-paper);
}

.faq-shot img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  aspect-ratio: 3 / 2;
  object-fit: cover;
  filter: saturate(0.88) contrast(0.98);
}

.faq-shot figcaption {
  padding: 10px 12px;
  border-top: 1px solid var(--hth-line);
  font-size: 0.8125rem;
  line-height: 1.7;
  color: var(--hth-gray);
}

/* ---------- 页尾收束 ---------- */
.faq-tail {
  padding: 40px 0;
  background-color: var(--hth-night);
  background-image:
    repeating-linear-gradient(90deg, rgba(200, 163, 83, 0.16) 0 1px, transparent 1px 64px),
    linear-gradient(160deg, var(--hth-ink-green) 0%, var(--hth-night) 78%);
  color: var(--hth-paper);
}

.faq-tail__inner {
  display: grid;
  gap: 22px;
}

.faq-tail__title {
  margin: 0 0 8px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(1.35rem, 4.6vw, 1.75rem);
  line-height: 1.2;
  letter-spacing: -0.01em;
  color: var(--hth-sand);
}

.faq-tail__text p {
  max-width: 58ch;
  margin: 0;
  font-size: 0.9375rem;
  line-height: 1.8;
  color: rgba(247, 245, 240, 0.88);
}

.faq-tail__links {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.faq-tail__cta {
  display: inline-block;
  padding: 11px 20px;
  border: 1px solid var(--hth-sand);
  background: transparent;
  color: var(--hth-sand);
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 0.9375rem;
  text-decoration: none;
  transition: background var(--dur) var(--ease), color var(--dur) var(--ease),
    border-color var(--dur) var(--ease);
}

.faq-tail__cta:hover,
.faq-tail__cta:focus-visible {
  background: var(--hth-sand);
  color: var(--hth-night);
}

.faq-tail__cta--solid {
  border-color: var(--hth-red);
  background: var(--hth-red);
  color: var(--hth-paper);
}

.faq-tail__cta--solid:hover,
.faq-tail__cta--solid:focus-visible {
  border-color: var(--hth-paper);
  background: var(--hth-paper);
  color: var(--hth-ink-green);
}

.faq-tail__cta:focus-visible {
  outline: 2px solid var(--hth-sand);
  outline-offset: 2px;
}

/* ---------- 平板及以上 ---------- */
@media (min-width: 760px) {
  .faq-hero {
    padding: 48px 0 54px;
  }

  .faq-index {
    overflow: visible;
    scroll-snap-type: none;
  }

  .faq-index > li {
    flex: 1 1 0;
    min-width: 0;
  }

  .faq-group {
    padding: 52px 0;
  }

  .faq-item__q {
    padding: 18px 0;
    font-size: 1.125rem;
  }

  .faq-spec__row {
    grid-template-columns: 5.6rem minmax(0, 1fr);
    gap: 20px;
  }
}

/* ---------- 桌面 ---------- */
@media (min-width: 900px) {
  .faq-group__body--media {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    gap: 32px;
    align-items: start;
  }

  .faq-list--wide {
    max-width: 72ch;
  }

  .faq-tail__inner {
    grid-template-columns: minmax(0, 1fr) auto;
    align-items: center;
    gap: 40px;
  }

  .faq-tail__links {
    justify-content: flex-end;
    flex-wrap: nowrap;
  }
}
<<<END>>>