.page-faq {
  --faq-text: rgba(244, 251, 246, 0.84);
  --faq-index-ink: rgba(159, 184, 172, 0.3);
  --faq-line: var(--hair);
  --faq-pad: clamp(16px, 4vw, 56px);
  background: linear-gradient(180deg, var(--turf) 0%, var(--turf) 68%, var(--turf-deep) 100%);
  color: var(--paper);
  overflow-x: clip;
  padding-bottom: clamp(48px, 7vw, 104px);
}

.page-faq a {
  color: inherit;
}

/* ---------- 首屏 ---------- */

.page-faq .faq-hero {
  padding: clamp(28px, 5vw, 60px) 0 clamp(36px, 5vw, 68px);
  border-bottom: 1px solid var(--faq-line);
}

.page-faq .faq-hero .breadcrumbs {
  margin-bottom: clamp(20px, 3vw, 40px);
}

.page-faq .faq-hero__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(28px, 4vw, 56px);
  align-items: center;
}

.page-faq .faq-hero h1 {
  font-family: var(--font-head);
  font-weight: 900;
  font-size: clamp(38px, 8.4vw, 96px);
  line-height: 0.94;
  letter-spacing: -0.02em;
  margin: clamp(12px, 2vw, 20px) 0 0;
}

.page-faq .faq-hero__hl {
  color: var(--lime);
  display: block;
}

.page-faq .faq-hero__lede {
  margin: clamp(18px, 2.4vw, 28px) 0 0;
  max-width: 48ch;
  font-size: var(--fs-body);
  line-height: 1.8;
  color: var(--faq-text);
}

.page-faq .faq-hero__metrics {
  display: flex;
  flex-wrap: wrap;
  gap: clamp(18px, 3vw, 48px);
  margin-top: clamp(26px, 3.4vw, 44px);
  padding-top: clamp(18px, 2.4vw, 26px);
  border-top: 1px solid var(--faq-line);
}

.page-faq .faq-hero__metrics .metric {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.page-faq .faq-hero__metrics .metric__value {
  font-family: var(--font-num);
  font-size: clamp(24px, 3.4vw, 38px);
  line-height: 1;
  color: var(--copper-bright);
  font-variant-numeric: tabular-nums;
}

.page-faq .faq-hero__metrics .metric__value--lime {
  color: var(--lime);
}

.page-faq .faq-hero__metrics .metric__label {
  font-size: 13px;
  color: var(--mist);
  letter-spacing: 0.02em;
}

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

.page-faq .faq-hero__media img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
}

/* ---------- 主体两栏 ---------- */

.page-faq .faq-body {
  padding: clamp(36px, 5vw, 80px) 0 0;
}

.page-faq .faq-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(30px, 4vw, 56px);
}

/* ---------- 左侧分组导航 ---------- */

.page-faq .faq-rail__title {
  margin: 0 0 14px;
  font-family: var(--font-num);
  font-size: 12px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--mist);
}

.page-faq .faq-rail__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 2px;
}

.page-faq .faq-rail__link {
  display: flex;
  align-items: baseline;
  gap: 12px;
  padding: 11px 0 11px 14px;
  border-left: 2px solid var(--faq-line);
  font-size: 15px;
  color: var(--mist);
  text-decoration: none;
  transition: color 0.25s var(--ease), border-color 0.25s var(--ease), background-color 0.25s var(--ease);
}

.page-faq .faq-rail__link:hover {
  color: var(--paper);
  border-left-color: var(--hair-strong);
  background: rgba(18, 80, 60, 0.35);
}

.page-faq .faq-rail__link[data-current] {
  color: var(--lime);
  border-left-color: var(--lime);
}

.page-faq .faq-rail__num {
  font-family: var(--font-num);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: inherit;
  opacity: 0.8;
}

.page-faq .faq-rail__label {
  font-weight: 700;
}

.page-faq .faq-rail__hint {
  margin: 18px 0 0;
  padding-left: 14px;
  font-size: 13px;
  line-height: 1.7;
  color: var(--mist);
}

.page-faq .faq-rail__hint a {
  color: var(--lime);
  text-decoration: none;
  border-bottom: 1px solid rgba(198, 255, 0, 0.4);
}

.page-faq .faq-rail__hint a:hover {
  border-bottom-color: var(--lime);
}

/* ---------- 右侧问答流 ---------- */

.page-faq .faq-group {
  border-top: 1px solid var(--faq-line);
  padding-top: clamp(24px, 3.4vw, 44px);
  scroll-margin-top: calc(var(--header-h) + 32px);
}

.page-faq .faq-group + .faq-group {
  margin-top: clamp(44px, 6vw, 88px);
}

.page-faq .faq-group__head {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: clamp(14px, 2.4vw, 30px);
  align-items: start;
  margin-bottom: clamp(16px, 2.2vw, 28px);
}

.page-faq .faq-group__index {
  font-family: var(--font-head);
  font-weight: 900;
  font-size: clamp(52px, 10vw, 112px);
  line-height: 0.78;
  letter-spacing: -0.04em;
  color: var(--faq-index-ink);
  user-select: none;
}

.page-faq .faq-group__titles h2 {
  font-family: var(--font-head);
  font-weight: 900;
  font-size: clamp(23px, 3.1vw, 40px);
  line-height: 1.02;
  letter-spacing: -0.01em;
  margin: 0 0 10px;
}

.page-faq .faq-group__titles p {
  margin: 0;
  max-width: 56ch;
  font-size: 15px;
  line-height: 1.75;
  color: var(--mist);
}

/* ---------- 单条问答 ---------- */

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

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

.page-faq .faq-item > summary {
  display: flex;
  align-items: flex-start;
  gap: clamp(12px, 1.6vw, 20px);
  padding: clamp(16px, 2vw, 24px) 0;
  cursor: pointer;
  list-style: none;
  font-size: clamp(16px, 1.4vw, 18px);
  font-weight: 700;
  line-height: 1.55;
  color: var(--paper);
  transition: color 0.22s var(--ease);
}

.page-faq .faq-item > summary::-webkit-details-marker {
  display: none;
}

.page-faq .faq-item > summary::marker {
  content: "";
}

.page-faq .faq-item > summary:hover,
.page-faq .faq-item > summary:focus-visible {
  color: var(--lime);
}

.page-faq .faq-item[open] > summary {
  color: var(--lime);
}

.page-faq .faq-mark {
  flex: none;
  width: 0;
  height: 0;
  margin-top: 0.58em;
  border-left: 8px solid var(--copper);
  border-top: 5.5px solid transparent;
  border-bottom: 5.5px solid transparent;
  transition: transform 0.26s var(--ease), border-left-color 0.26s var(--ease);
}

.page-faq .faq-item[open] .faq-mark {
  transform: rotate(90deg);
  border-left-color: var(--lime);
}

.page-faq .faq-item__body {
  padding: 0 0 clamp(18px, 2.4vw, 28px) calc(8px + clamp(12px, 1.6vw, 20px));
}

.page-faq .faq-item__body p {
  margin: 0 0 12px;
  max-width: 66ch;
  font-size: 16px;
  line-height: 1.82;
  color: var(--faq-text);
}

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

.page-faq .faq-item__body a {
  color: var(--lime);
  text-decoration: none;
  border-bottom: 1px solid rgba(198, 255, 0, 0.4);
}

.page-faq .faq-item__body a:hover {
  border-bottom-color: var(--lime);
}

/* ---------- 字段表 ---------- */

.page-faq .field-list {
  margin: 16px 0 0;
  border-top: 1px solid var(--faq-line);
}

.page-faq .field-list > div {
  display: grid;
  grid-template-columns: minmax(84px, 116px) minmax(0, 1fr);
  gap: 12px;
  padding: 11px 0;
  border-bottom: 1px solid var(--faq-line);
}

.page-faq .field-list > div:last-child {
  border-bottom: none;
}

.page-faq .field-list dt {
  font-family: var(--font-num);
  font-size: 13px;
  line-height: 1.7;
  color: var(--copper-bright);
}

.page-faq .field-list dd {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.7;
  color: var(--faq-text);
}

/* ---------- 章节内图片 ---------- */

.page-faq .faq-field-media {
  margin: 0 0 clamp(20px, 2.6vw, 32px);
}

.page-faq .faq-field-media img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
}

/* ---------- 结尾引导 ---------- */

.page-faq .faq-outro {
  margin-top: clamp(48px, 6vw, 92px);
}

.page-faq .faq-outro__inner {
  background: var(--turf-line);
  border-left: 3px solid var(--lime);
  padding: clamp(24px, 3.4vw, 48px);
}

.page-faq .faq-outro h2 {
  font-family: var(--font-head);
  font-weight: 900;
  font-size: clamp(24px, 3.4vw, 42px);
  line-height: 1.05;
  letter-spacing: -0.01em;
  margin: clamp(10px, 1.6vw, 16px) 0 0;
}

.page-faq .faq-outro p {
  margin: 14px 0 0;
  max-width: 58ch;
  font-size: 16px;
  line-height: 1.8;
  color: var(--faq-text);
}

.page-faq .faq-outro__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: clamp(20px, 2.6vw, 32px);
}

/* ---------- 响应式 ---------- */

@media (min-width: 768px) {
  .page-faq .faq-item__body {
    padding-right: clamp(24px, 7vw, 96px);
  }
}

@media (min-width: 900px) {
  .page-faq .faq-hero__grid {
    grid-template-columns: minmax(0, 1.08fr) minmax(0, 0.92fr);
    gap: clamp(32px, 5vw, 72px);
  }
}

@media (min-width: 1024px) {
  .page-faq .faq-layout {
    grid-template-columns: 232px minmax(0, 1fr);
    gap: clamp(48px, 6vw, 104px);
  }

  .page-faq .faq-rail__inner {
    position: sticky;
    top: calc(var(--header-h) + 28px);
  }

  .page-faq .faq-rail__list {
    gap: 0;
  }

  .page-faq .faq-group__head {
    grid-template-columns: clamp(120px, 12vw, 180px) minmax(0, 1fr);
  }
}

@media (min-width: 1280px) {
  .page-faq .faq-hero__media {
    justify-self: end;
    max-width: 620px;
    width: 100%;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-mark,
  .page-faq .faq-rail__link,
  .page-faq .faq-item > summary {
    transition: none;
  }
}