.page-faq {
  --faq-card: #FFFFFF;
  --faq-ink-soft: rgba(11, 17, 22, 0.74);
  --faq-gap: clamp(20px, 4vw, 34px);
  --faq-border: 2px solid var(--ld-ink);
  background: var(--ld-mist);
  color: var(--ld-ink);
}

.page-faq :where(a, summary):focus-visible {
  outline: 2px solid var(--ld-cyan);
  outline-offset: 2px;
}

.page-faq .faq-crumbs-wrap {
  padding-top: clamp(14px, 3vw, 22px);
  padding-bottom: clamp(8px, 2vw, 14px);
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  overflow: hidden;
  isolation: isolate;
  background: linear-gradient(158deg, var(--ld-slate) 0%, #17242f 58%, #0d1a22 100%);
  color: var(--ld-mist);
  padding: clamp(28px, 6vw, 58px) 0 clamp(58px, 10vw, 104px);
}

.page-faq .faq-hero__slant {
  position: absolute;
  right: -12%;
  bottom: -38%;
  width: 70%;
  height: 86%;
  background: linear-gradient(135deg, var(--ld-grass) 0%, rgba(14, 74, 49, 0.7) 48%, rgba(14, 74, 49, 0) 100%);
  clip-path: polygon(34% 0, 100% 0, 100% 100%, 0 100%);
  opacity: 0.92;
  z-index: -1;
}

.page-faq .faq-hero__stripe {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 6px;
  background: linear-gradient(90deg, var(--ld-orange) 0 32%, var(--ld-purple) 32% 63%, var(--ld-cyan) 63% 100%);
}

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

.page-faq .faq-hero__title {
  margin: 14px 0 18px;
  max-width: 20ch;
  font-family: var(--ld-font-cn);
  font-size: clamp(2rem, 7.4vw, 4.2rem);
  font-weight: 300;
  letter-spacing: 0.06em;
  line-height: 1.16;
}

.page-faq .faq-hero__lede {
  max-width: 62ch;
  margin: 0;
  font-size: clamp(0.95rem, 2.2vw, 1.0625rem);
  line-height: 1.85;
  color: rgba(233, 238, 243, 0.88);
}

.page-faq .faq-hero__meta {
  margin: 22px 0 0;
  font-size: 11.5px;
  letter-spacing: 0.14em;
  color: var(--ld-cyan);
  text-transform: none;
}

/* ---------- 数据带 ---------- */
.page-faq .faq-data {
  background: var(--ld-grass-deep);
  color: var(--ld-mist);
  padding-block: clamp(20px, 4vw, 34px);
}

.page-faq .faq-data__list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px 22px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-faq .faq-data__item {
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding-left: 14px;
  border-left: 2px solid var(--ld-cyan);
}

.page-faq .faq-data__num {
  font-size: clamp(26px, 4.6vw, 38px);
  line-height: 1;
  color: var(--ld-cyan);
}

.page-faq .faq-data__label {
  font-size: 12.5px;
  line-height: 1.6;
  letter-spacing: 0.03em;
  color: rgba(233, 238, 243, 0.82);
}

/* ---------- 主体骨架 ---------- */
.page-faq .faq-body {
  display: grid;
  gap: var(--faq-gap);
  padding-block: clamp(32px, 6vw, 68px) clamp(48px, 8vw, 96px);
}

.page-faq .faq-toc__title {
  margin: 0 0 10px;
  font-size: 11px;
  letter-spacing: 0.2em;
  color: var(--ld-gray);
}

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

.page-faq .faq-toc__list > li {
  flex: none;
}

.page-faq .faq-toc__link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 9px 15px;
  border: 1px solid rgba(124, 147, 166, 0.42);
  border-radius: 999px;
  background: var(--faq-card);
  color: var(--ld-ink);
  font-size: 13.5px;
  line-height: 1.2;
  text-decoration: none;
  white-space: nowrap;
  transition: background-color 0.2s var(--ld-ease), color 0.2s var(--ld-ease), border-color 0.2s var(--ld-ease);
}

.page-faq .faq-toc__link .ld-mono {
  font-size: 11px;
  color: var(--ld-gray);
}

.page-faq .faq-toc__link[aria-current="true"] {
  background: var(--ld-cyan);
  border-color: var(--ld-ink);
  box-shadow: 3px 3px 0 var(--ld-ink);
}

.page-faq .faq-toc__link[aria-current="true"] .ld-mono {
  color: var(--ld-ink);
}

/* ---------- 分组 ---------- */
.page-faq .faq-group {
  margin-bottom: clamp(40px, 7vw, 76px);
}

.page-faq .faq-group__head {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  align-items: end;
  gap: 4px 16px;
  padding-bottom: 16px;
  margin-bottom: 24px;
  border-bottom: 2px solid var(--ld-grass);
}

.page-faq .faq-group__num {
  grid-row: span 2;
  font-family: var(--ld-font-mono);
  font-size: clamp(44px, 9vw, 76px);
  font-weight: 700;
  line-height: 0.86;
  letter-spacing: 0.02em;
  color: transparent;
  -webkit-text-stroke: 2px var(--ld-cyan-ink);
}

.page-faq .faq-group__title {
  margin: 0;
  font-family: var(--ld-font-cn);
  font-size: clamp(1.35rem, 3.6vw, 2.1rem);
  font-weight: 400;
  letter-spacing: 0.06em;
  line-height: 1.3;
}

.page-faq .faq-group__lede {
  grid-column: 2;
  max-width: 60ch;
  margin: 0;
  font-size: 14.5px;
  line-height: 1.85;
  color: var(--faq-ink-soft);
}

.page-faq .faq-figure {
  margin: 0 0 24px;
}

.page-faq .faq-figure img {
  width: 100%;
  height: auto;
  display: block;
}

.page-faq .faq-figure .ld-media__caption {
  margin-top: 10px;
  font-size: 13px;
  line-height: 1.7;
  color: var(--faq-ink-soft);
}

/* ---------- 问答折叠 ---------- */
.page-faq .faq-item {
  margin-bottom: 14px;
  border: var(--faq-border);
  border-radius: var(--ld-radius-sm);
  background: var(--faq-card);
  box-shadow: 6px 6px 0 var(--ld-ink);
  overflow: hidden;
}

.page-faq .faq-item__q {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 16px 16px;
  cursor: pointer;
  list-style: none;
  font-family: var(--ld-font-cn);
  font-size: 1.0625rem;
  font-weight: 500;
  line-height: 1.6;
  letter-spacing: 0.02em;
}

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

.page-faq .faq-item__idx {
  flex: none;
  margin-top: 3px;
  padding: 1px 6px;
  border: 1px solid var(--ld-cyan-ink);
  border-radius: 4px;
  font-size: 11.5px;
  line-height: 1.5;
  color: var(--ld-cyan-ink);
}

.page-faq .faq-item__q::after {
  content: "";
  flex: none;
  align-self: center;
  margin-left: auto;
  width: 9px;
  height: 9px;
  border-right: 2px solid var(--ld-ink);
  border-bottom: 2px solid var(--ld-ink);
  transform: rotate(45deg) translate(-2px, -2px);
  transition: transform 0.24s var(--ld-ease);
}

.page-faq .faq-item[open] .faq-item__q::after {
  transform: rotate(-135deg) translate(-2px, -2px);
}

.page-faq .faq-item[open] .faq-item__q {
  border-bottom: 1px dashed rgba(124, 147, 166, 0.55);
}

.page-faq .faq-item__a {
  padding: 16px 16px 20px;
  animation: faqReveal 0.28s var(--ld-ease) both;
}

.page-faq .faq-item__a p {
  margin: 0 0 12px;
  max-width: 66ch;
  font-size: 16px;
  line-height: 1.85;
}

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

.page-faq .faq-item__a a {
  color: var(--ld-grass-deep);
  text-decoration: underline;
  text-decoration-color: var(--ld-cyan);
  text-decoration-thickness: 2px;
  text-underline-offset: 3px;
}

@keyframes faqReveal {
  from {
    opacity: 0;
    transform: translateY(-6px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* ---------- 口径提示条 ---------- */
.page-faq .faq-note {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  margin: 22px 0 0;
  padding: 12px 16px;
  border: 1px solid rgba(255, 194, 74, 0.9);
  border-left-width: 4px;
  border-radius: var(--ld-radius-sm);
  background: rgba(255, 194, 74, 0.12);
  font-size: 13.5px;
  line-height: 1.75;
  color: var(--ld-ink);
}

.page-faq .faq-note a {
  color: var(--ld-grass-deep);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.page-faq .faq-note__dot {
  flex: none;
  margin-top: 6px;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--ld-amber);
  box-shadow: 0 0 0 4px rgba(255, 194, 74, 0.22);
}

/* ---------- 窄屏以上 ---------- */
@media (min-width: 560px) {
  .page-faq .faq-item__q {
    padding: 18px 22px;
    font-size: 1.0938rem;
  }

  .page-faq .faq-item__a {
    padding: 18px 24px 22px 62px;
  }

  .page-faq .faq-figure--hand {
    width: 84%;
  }

  .page-faq .faq-figure--table {
    width: 92%;
    margin-left: auto;
  }
}

@media (min-width: 820px) {
  .page-faq .faq-data__list {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .page-faq .faq-data__item {
    padding-left: 16px;
  }

  .page-faq .faq-group__lede {
    grid-column: 2;
  }
}

@media (min-width: 960px) {
  .page-faq .faq-body {
    grid-template-columns: 248px minmax(0, 1fr);
    align-items: start;
    gap: clamp(34px, 4vw, 64px);
  }

  .page-faq .faq-toc {
    position: sticky;
    top: calc(var(--ld-header-h) + 20px);
  }

  .page-faq .faq-toc__list {
    flex-direction: column;
    gap: 6px;
    overflow: visible;
    padding-bottom: 0;
  }

  .page-faq .faq-toc__link {
    width: 100%;
    border-radius: var(--ld-radius-sm);
    padding: 10px 14px;
    white-space: normal;
  }
}

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

  .page-faq .faq-item__q::after {
    transition: none;
  }

  .page-faq .faq-toc__link {
    transition: none;
  }
}