.page-faq {
  --faq-ink: #C6D3DA;
  --faq-answer-size: 0.95rem;
  --faq-q-size: clamp(0.98rem, 1.35vw, 1.06rem);
  padding-block-end: clamp(3rem, 7vw, 5rem);
}

/* 面包屑 */
.page-faq .breadcrumb__sep {
  margin-inline: 0.45rem;
  color: var(--stone);
}

/* 首屏 */
.page-faq .faq-hero {
  position: relative;
  overflow: hidden;
  display: grid;
  gap: clamp(1.5rem, 4vw, 2.5rem);
  padding-block: clamp(1.25rem, 3vw, 2.25rem) clamp(1.75rem, 4.5vw, 3rem);
  border-bottom: 1px solid var(--line-soft);
}

.page-faq .faq-hero::before {
  content: "";
  position: absolute;
  inset-inline-start: -16%;
  top: -40%;
  width: 30rem;
  height: 30rem;
  background: radial-gradient(circle at 45% 45%, rgba(41, 185, 164, 0.16), transparent 66%);
  pointer-events: none;
}

.page-faq .faq-hero__text,
.page-faq .faq-hero__figure {
  position: relative;
  z-index: 1;
}

.page-faq .faq-hero h1 {
  margin: 0.65rem 0 0;
  font-family: var(--font-display);
  font-weight: 300;
  font-size: clamp(2rem, 6vw, 3.9rem);
  line-height: 1.08;
  letter-spacing: -0.025em;
  color: var(--cream);
  text-wrap: balance;
}

.page-faq .faq-hero__lede {
  margin: 1.1rem 0 0;
  max-width: 54ch;
  font-size: 0.98rem;
  line-height: 1.85;
  color: var(--faq-ink);
}

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

.page-faq .faq-hero__figure .figure__media {
  border-radius: 1.5rem 1.5rem 1.5rem 0.4rem;
  overflow: hidden;
}

.page-faq .faq-hero__figure img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
  filter: saturate(0.86) contrast(1.04);
}

/* 三栏骨架：索引 + 答案 */
.page-faq .faq-layout {
  display: grid;
  gap: clamp(1.5rem, 4vw, 2.5rem);
  padding-block: clamp(1.75rem, 4.5vw, 3rem);
}

.page-faq .faq-index {
  min-width: 0;
}

.page-faq .faq-index__cap {
  margin: 0 0 0.7rem;
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.24em;
  text-transform: uppercase;
  color: var(--stone);
}

.page-faq .faq-index__list {
  display: flex;
  gap: 0.4rem;
  margin: 0;
  padding: 0 0 0.35rem;
  list-style: none;
  overflow-x: auto;
  scrollbar-width: thin;
}

.page-faq .faq-index__link {
  display: inline-flex;
  align-items: baseline;
  gap: 0.5rem;
  padding: 0.5rem 0.8rem;
  border: 1px solid var(--line-soft);
  border-radius: 999px;
  font-size: 0.8rem;
  line-height: 1.4;
  color: var(--stone);
  text-decoration: none;
  white-space: nowrap;
  transition: color 0.2s var(--ease), border-color 0.2s var(--ease), background-color 0.2s var(--ease);
}

.page-faq .faq-index__link .num {
  font-size: 0.72rem;
  color: var(--lake);
}

.page-faq .faq-index__link:hover,
.page-faq .faq-index__link:focus-visible {
  color: var(--glow);
  border-color: var(--line-glow);
  background-color: rgba(41, 185, 164, 0.08);
}

.page-faq .faq-body {
  min-width: 0;
}

/* 分组 */
.page-faq .faq-group {
  scroll-margin-top: 5.5rem;
  padding-block-end: clamp(1.75rem, 4vw, 2.75rem);
}

.page-faq .faq-group + .faq-group {
  padding-block-start: clamp(1.75rem, 4vw, 2.75rem);
  border-top: 1px solid var(--line-soft);
}

.page-faq .faq-group__head {
  display: grid;
  gap: 0.4rem;
  margin-bottom: 1.15rem;
}

.page-faq .faq-group__title {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 300;
  font-size: clamp(1.45rem, 3.4vw, 2.2rem);
  line-height: 1.18;
  letter-spacing: -0.015em;
  color: var(--cream);
}

.page-faq .faq-group__title::before {
  content: "";
  display: block;
  width: 2.6rem;
  height: 2px;
  margin-bottom: 0.7rem;
  background: var(--clay);
}

.page-faq .faq-group__lede {
  margin: 0;
  max-width: 52ch;
  font-size: 0.88rem;
  line-height: 1.75;
  color: var(--stone);
}

.page-faq .faq-group__figure {
  margin: 0 0 1.4rem;
}

.page-faq .faq-group__figure .figure__media {
  border-radius: 0.4rem 1.25rem 1.25rem 1.25rem;
  overflow: hidden;
  border: 1px solid var(--line-soft);
}

.page-faq .faq-group__figure img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
  filter: saturate(0.8) contrast(1.05);
}

.page-faq .faq-group__figure .figure__cap {
  margin-top: 0.55rem;
  font-size: 0.76rem;
  line-height: 1.6;
  color: var(--stone);
}

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

.page-faq .faq-items--after-table {
  margin-top: 1.6rem;
}

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

.page-faq .faq-item__q {
  display: flex;
  align-items: baseline;
  gap: 0.8rem;
  padding: 0.95rem 0;
  cursor: pointer;
  list-style: none;
  font-size: var(--faq-q-size);
  line-height: 1.62;
  color: var(--cream);
  transition: color 0.2s var(--ease), padding-inline-start 0.24s var(--ease);
}

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

.page-faq .faq-item__q::after {
  content: "＋";
  margin-inline-start: auto;
  flex: 0 0 auto;
  font-family: var(--font-mono);
  font-size: 0.95rem;
  line-height: 1;
  color: var(--lake);
  transition: color 0.2s var(--ease);
}

.page-faq .faq-item[open] .faq-item__q::after {
  content: "－";
  color: var(--glow);
}

.page-faq .faq-item__q:hover {
  color: var(--glow);
  padding-inline-start: 4px;
}

.page-faq .faq-item__q:focus-visible {
  outline: 2px solid var(--glow);
  outline-offset: 2px;
  border-radius: 4px;
}

.page-faq .faq-item__mark {
  flex: 0 0 auto;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  color: var(--lake);
}

.page-faq .faq-item[open] .faq-item__mark {
  color: var(--glow);
}

.page-faq .faq-item__a {
  max-width: 64ch;
  padding-block-end: 1.15rem;
  padding-inline-start: 2.3rem;
  font-size: var(--faq-answer-size);
  line-height: 1.85;
  color: var(--faq-ink);
}

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

.page-faq .faq-item__a a {
  color: var(--lake);
  text-decoration: underline;
  text-decoration-color: rgba(41, 185, 164, 0.4);
  text-underline-offset: 3px;
}

.page-faq .faq-item__a a:hover,
.page-faq .faq-item__a a:focus-visible {
  color: var(--glow);
}

.page-faq .faq-item[open] .faq-item__a {
  animation: faqAnswerIn 0.3s var(--ease) both;
}

@keyframes faqAnswerIn {
  from {
    opacity: 0;
    transform: translateX(-10px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

/* 字段说明表 */
.page-faq .faq-table-wrap {
  overflow-x: auto;
  border: 1px solid var(--line-soft);
  border-radius: 0.35rem 1.15rem 1.15rem 1.15rem;
  background: linear-gradient(180deg, rgba(28, 38, 53, 0.72), rgba(14, 21, 34, 0.62));
}

.page-faq .faq-table-wrap:focus-visible {
  outline: 2px solid var(--glow);
  outline-offset: 3px;
}

.page-faq .faq-table {
  width: 100%;
  min-width: 32rem;
  border-collapse: collapse;
  font-size: 0.88rem;
}

.page-faq .faq-table caption {
  caption-side: top;
  padding: 0.85rem 1rem 0;
  text-align: start;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--flag);
}

.page-faq .faq-table th,
.page-faq .faq-table td {
  padding: 0.72rem 1rem;
  text-align: start;
  vertical-align: top;
  border-bottom: 1px solid var(--line-soft);
}

.page-faq .faq-table thead th {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  font-weight: 500;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--stone);
}

.page-faq .faq-table tbody th {
  font-family: var(--font-mono);
  font-size: 0.86rem;
  font-weight: 700;
  color: var(--cold);
  white-space: nowrap;
}

.page-faq .faq-table td {
  line-height: 1.7;
  color: var(--faq-ink);
}

.page-faq .faq-table td.is-unit {
  font-family: var(--font-mono);
  font-weight: 700;
  text-align: end;
  white-space: nowrap;
  color: var(--glow);
}

.page-faq .faq-table tbody tr:last-child th,
.page-faq .faq-table tbody tr:last-child td {
  border-bottom: 0;
}

.page-faq .faq-table tbody tr:hover {
  background-color: rgba(41, 185, 164, 0.07);
}

/* 收尾面板 */
.page-faq .faq-cta {
  display: grid;
  gap: 1.1rem;
  justify-items: start;
  padding: clamp(1.35rem, 3vw, 2rem);
  border: 1px solid var(--line-soft);
  border-radius: 0.35rem 1.4rem 1.4rem 1.4rem;
  background:
    radial-gradient(130% 150% at 0% 0%, rgba(41, 185, 164, 0.18), transparent 58%),
    linear-gradient(180deg, rgba(28, 38, 53, 0.88), rgba(14, 21, 34, 0.92));
}

.page-faq .faq-cta__text {
  margin: 0;
  max-width: 60ch;
  font-size: 0.96rem;
  line-height: 1.85;
  color: var(--faq-ink);
}

.page-faq .faq-cta__btn {
  justify-self: start;
}

/* 桌面端 */
@media (min-width: 68rem) {
  .page-faq .faq-hero {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, 1fr);
    align-items: center;
    gap: 3rem;
  }

  .page-faq .faq-layout {
    grid-template-columns: 12rem minmax(0, 1fr);
    gap: 2.75rem;
    align-items: start;
  }

  .page-faq .faq-index {
    position: sticky;
    top: 2.25rem;
  }

  .page-faq .faq-index__list {
    flex-direction: column;
    gap: 0;
    overflow: visible;
    padding-bottom: 0;
  }

  .page-faq .faq-index__link {
    border: 0;
    border-radius: 0;
    border-inline-start: 2px solid var(--line-soft);
    padding: 0.55rem 0.9rem;
    white-space: normal;
    background-color: transparent;
  }

  .page-faq .faq-index__link:hover,
  .page-faq .faq-index__link:focus-visible {
    border-inline-start-color: var(--lake);
    background-color: transparent;
    background-image: linear-gradient(90deg, rgba(41, 185, 164, 0.16), transparent 72%);
  }

  .page-faq .faq-item__q {
    padding: 1.05rem 0;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-item[open] .faq-item__a {
    animation: none;
  }

  .page-faq .faq-item__q,
  .page-faq .faq-index__link {
    transition: none;
  }
}