.page-faq {
  --faq-rail: 252px;
  --faq-gap: clamp(22px, 3.4vw, 56px);
  --faq-line: #1F3A31;
  --faq-glow: rgba(61, 242, 192, .10);
  padding-top: var(--bar-h);
  padding-bottom: clamp(48px, 8vw, 96px);
  background-image: var(--turf-lines);
}

/* ---------- 面包屑 ---------- */
.page-faq .crumbs {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  padding: 26px 0 0;
  font-size: 13px;
  letter-spacing: .05em;
  color: var(--stand);
}

.page-faq .crumbs__link {
  color: var(--mist);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color .2s ease, border-color .2s ease;
}

.page-faq .crumbs__link:hover,
.page-faq .crumbs__link:focus-visible {
  color: var(--neon);
  border-bottom-color: var(--neon);
}

.page-faq .crumbs__sep {
  color: var(--stand);
  opacity: .45;
}

.page-faq .crumbs__now {
  color: var(--paper);
}

/* ---------- 首屏 ---------- */
.page-faq .faq-lede {
  position: relative;
  padding: clamp(30px, 5vw, 58px) 0 clamp(26px, 3.5vw, 44px);
  background-image:
    radial-gradient(120% 90% at 84% 10%, var(--faq-glow), transparent 62%),
    var(--turf-lines);
}

.page-faq .faq-lede__inner {
  display: grid;
  gap: clamp(26px, 4vw, 46px);
  align-items: center;
}

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

.page-faq .faq-lede h1 {
  margin: 12px 0 0;
  font-family: var(--font-display);
  font-size: clamp(28px, 4.2vw, 46px);
  font-weight: 900;
  line-height: 1.16;
  letter-spacing: -.02em;
  color: var(--paper);
  max-width: 17em;
}

.page-faq .faq-lede__text {
  margin: 20px 0 0;
  max-width: 34em;
  font-size: 16.5px;
  line-height: 1.8;
  color: var(--stand);
}

.page-faq .faq-lede__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 26px;
}

.page-faq .faq-lede__fig {
  margin: 0;
  min-width: 0;
}

.page-faq .faq-lede__fig img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
  border: 1px solid var(--faq-line);
  border-radius: 4px;
  box-shadow: var(--paper-shadow);
}

/* ---------- 主体骨架 ---------- */
.page-faq .faq-shell {
  display: grid;
  gap: clamp(24px, 3vw, 44px);
  margin-top: clamp(34px, 5vw, 62px);
  align-items: start;
}

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

/* ---------- 索引 ---------- */
.page-faq .faq-index {
  border: 1px solid var(--faq-line);
  border-radius: 4px;
  background: var(--turf);
  box-shadow: var(--paper-shadow);
  padding: 18px 14px;
  min-width: 0;
}

.page-faq .faq-index__title {
  margin: 0 0 14px;
  padding-left: 10px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .3em;
  text-transform: uppercase;
  color: var(--mist);
}

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

.page-faq .faq-index__link {
  display: flex;
  align-items: baseline;
  gap: 10px;
  padding: 9px 10px;
  font-size: 14.5px;
  color: var(--stand);
  text-decoration: none;
  white-space: nowrap;
  border-left: 2px solid transparent;
  transition: color .2s ease, border-color .2s ease, background-color .2s ease;
}

.page-faq .faq-index__link:hover,
.page-faq .faq-index__link:focus-visible {
  color: var(--neon);
  border-left-color: var(--neon);
  background: rgba(61, 242, 192, .07);
}

.page-faq .faq-index__num {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .1em;
  color: var(--mist);
  flex: 0 0 auto;
}

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

/* ---------- 分组 ---------- */
.page-faq .faq-group {
  margin-top: clamp(40px, 6vw, 74px);
  scroll-margin-top: calc(var(--bar-h) + 28px);
}

.page-faq .faq-body > .faq-group:first-child {
  margin-top: 0;
}

.page-faq .faq-group__head {
  display: grid;
  gap: 6px;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--faq-line);
}

.page-faq .faq-group__idx {
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: .24em;
  color: var(--neon);
}

.page-faq .faq-group__title {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(20px, 2.4vw, 27px);
  font-weight: 800;
  letter-spacing: -.01em;
  color: var(--paper);
}

.page-faq .faq-group__note {
  margin: 0;
  font-size: 14px;
  line-height: 1.7;
  color: var(--stand);
}

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

.page-faq .faq-item__summary {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  padding: 18px 4px;
  cursor: pointer;
  list-style: none;
}

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

.page-faq .faq-item__summary::after {
  content: "+";
  flex: 0 0 auto;
  margin-left: auto;
  padding-left: 8px;
  font-family: var(--font-mono);
  font-size: 19px;
  line-height: 1.1;
  color: var(--neon);
  transition: color .2s ease;
}

.page-faq .faq-item[open] .faq-item__summary::after {
  content: "−";
  color: var(--score);
}

.page-faq .faq-item__dot {
  margin-top: 8px;
  flex: 0 0 auto;
}

.page-faq .faq-item__q {
  flex: 1 1 auto;
  min-width: 0;
  font-size: 17px;
  font-weight: 600;
  line-height: 1.55;
  color: var(--paper);
  transition: color .2s ease;
}

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

.page-faq .faq-item__body {
  padding: 0 4px 22px 28px;
  font-size: 15.5px;
  line-height: 1.85;
  color: var(--stand);
}

.page-faq .faq-item__body p {
  margin: 0 0 12px;
  max-width: 46em;
}

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

.page-faq .hl {
  font-family: var(--font-mono);
  font-weight: 700;
  letter-spacing: -.01em;
  color: var(--score);
}

.page-faq .faq-more {
  margin-top: 16px;
}

.page-faq .faq-more__link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding-bottom: 2px;
  font-size: 14px;
  color: var(--neon);
  text-decoration: none;
  border-bottom: 1px solid rgba(61, 242, 192, .35);
  transition: border-color .2s ease, color .2s ease;
}

.page-faq .faq-more__link:hover,
.page-faq .faq-more__link:focus-visible {
  color: var(--mist);
  border-bottom-color: var(--mist);
}

/* ---------- 章节配图 ---------- */
.page-faq .faq-figure {
  margin: 26px 0;
  border: 1px solid var(--faq-line);
  border-radius: 4px;
  background: var(--turf);
  overflow: hidden;
}

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

.page-faq .faq-figure .img-frame__cap {
  display: block;
  padding: 12px 16px;
  border-top: 1px solid var(--faq-line);
  font-size: 13px;
  line-height: 1.7;
  color: var(--stand);
}

/* ---------- 平板与桌面 ---------- */
@media (min-width: 700px) {
  .page-faq .faq-lede__inner {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, .95fr);
  }
}

@media (min-width: 1024px) {
  .page-faq .faq-shell {
    grid-template-columns: var(--faq-rail) minmax(0, 1fr);
    gap: var(--faq-gap);
  }

  .page-faq .faq-index {
    position: sticky;
    top: calc(var(--bar-h) + 24px);
  }

  .page-faq .faq-index__link {
    white-space: normal;
  }

  .page-faq .faq-figure {
    margin: 30px 0;
  }

  .page-faq .faq-figure img {
    max-height: 340px;
  }
}

@media (max-width: 1023px) {
  .page-faq .faq-index__list {
    grid-auto-flow: column;
    grid-auto-columns: minmax(170px, 1fr);
    overflow-x: auto;
    padding-bottom: 6px;
  }
}

@media (max-width: 560px) {
  .page-faq .faq-lede h1 {
    font-size: 27px;
  }

  .page-faq .faq-item__q {
    font-size: 16px;
  }

  .page-faq .faq-item__body {
    padding-left: 4px;
    font-size: 15px;
  }

  .page-faq .faq-lede__actions .btn {
    flex: 1 1 auto;
    justify-content: center;
    text-align: center;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .crumbs__link,
  .page-faq .faq-index__link,
  .page-faq .faq-item__q,
  .page-faq .faq-item__summary::after,
  .page-faq .faq-more__link {
    transition: none;
  }
}