.page-faq {
  --faq-rail-w: 236px;
  display: block;
}

.page-faq a:focus-visible,
.page-faq button:focus-visible {
  outline: 2px solid var(--copper);
  outline-offset: 3px;
  border-radius: 2px;
}

/* ---------- 面包屑 ---------- */
.page-faq .faq-crumb {
  padding-top: 22px;
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  padding: 22px 0 46px;
}

.page-faq .faq-hero__grid {
  display: grid;
  gap: 26px;
}

.page-faq .faq-hero__kicker {
  display: flex;
  align-items: center;
  gap: 12px;
  margin: 0 0 16px;
  color: var(--copper);
  font-family: var(--font-mono);
  font-size: var(--fs-12);
  letter-spacing: 0.16em;
}

.page-faq .faq-hero__kicker::before {
  content: "";
  width: 30px;
  height: 2px;
  background: var(--copper);
  flex: none;
}

.page-faq .faq-hero__title {
  margin: 0 0 20px;
  color: var(--paper);
  font-size: clamp(32px, 8.4vw, 68px);
  font-weight: 900;
  line-height: 1.06;
  letter-spacing: -0.015em;
}

.page-faq .faq-hero__lead {
  margin: 0;
  max-width: 36em;
  color: var(--mist);
  font-size: var(--fs-16);
  line-height: 1.85;
}

.page-faq .faq-hero__lead strong {
  color: var(--paper);
  font-weight: 600;
}

.page-faq .faq-hero__tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 22px;
}

.page-faq .faq-hero__figure {
  margin: 0;
  border: 1px solid var(--line-soft);
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--night);
}

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

/* ---------- 左刻度 + 右问答 ---------- */
.page-faq .faq-split {
  display: grid;
  gap: 34px;
  padding-bottom: 80px;
}

.page-faq .faq-rail {
  border-top: 1px solid var(--line);
  padding-top: 18px;
}

.page-faq .faq-rail__label {
  margin: 0 0 14px;
  color: var(--mist);
  font-family: var(--font-mono);
  font-size: var(--fs-12);
  letter-spacing: 0.14em;
}

.page-faq .faq-rail__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 4px;
}

.page-faq .faq-rail__link {
  display: grid;
  grid-template-columns: 30px minmax(0, 1fr) auto;
  align-items: center;
  gap: 10px;
  padding: 11px 10px 11px 12px;
  border-left: 2px solid var(--line-soft);
  color: var(--paper);
  text-decoration: none;
  font-size: var(--fs-14);
  transition: border-color 0.22s ease, background-color 0.22s ease;
}

.page-faq .faq-rail__link:hover {
  border-left-color: var(--turf);
  background: rgba(53, 224, 140, 0.07);
}

.page-faq .faq-rail__idx {
  font-family: var(--font-mono);
  font-size: var(--fs-12);
  letter-spacing: 0.08em;
  color: var(--copper);
}

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

.page-faq .faq-rail__count {
  font-family: var(--font-mono);
  font-size: var(--fs-12);
  letter-spacing: 0.08em;
  color: var(--turf);
}

.page-faq .faq-rail__note {
  margin: 20px 0 0;
  padding-top: 16px;
  border-top: 1px dashed var(--line-soft);
  color: var(--mist);
  font-size: var(--fs-12);
  line-height: 1.9;
  letter-spacing: 0.02em;
}

/* ---------- 分组 ---------- */
.page-faq .faq-group {
  padding-top: 26px;
  border-top: 1px solid var(--line-soft);
  scroll-margin-top: 28px;
}

.page-faq .faq-group + .faq-group {
  margin-top: 48px;
}

.page-faq .faq-group__head {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  align-items: baseline;
  gap: 12px;
  margin-bottom: 16px;
}

.page-faq .faq-group__idx {
  font-family: var(--font-mono);
  font-size: var(--fs-14);
  letter-spacing: 0.08em;
  color: var(--copper);
}

.page-faq .faq-group__title {
  margin: 0;
  color: var(--paper);
  font-size: var(--fs-28);
  font-weight: 800;
  line-height: 1.25;
}

.page-faq .faq-group__count {
  font-family: var(--font-mono);
  font-size: var(--fs-12);
  letter-spacing: 0.1em;
  color: var(--mist);
  white-space: nowrap;
}

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

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

.page-faq .faq-item__head {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: start;
  gap: 10px;
  padding: 16px 0;
}

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

.page-faq .faq-item__toggle {
  width: 100%;
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: start;
  gap: 16px;
  padding: 0;
  margin: 0;
  background: none;
  border: 0;
  color: var(--paper);
  font-family: inherit;
  font-size: var(--fs-16);
  font-weight: 600;
  line-height: 1.7;
  text-align: left;
  cursor: pointer;
  transition: color 0.2s ease;
}

.page-faq .faq-item__toggle:hover .faq-item__label {
  color: var(--turf);
}

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

.page-faq .faq-item__sign {
  position: relative;
  width: 16px;
  height: 16px;
  margin-top: 7px;
  flex: none;
}

.page-faq .faq-item__sign::before,
.page-faq .faq-item__sign::after {
  content: "";
  position: absolute;
  background: var(--turf);
  transition: transform 0.24s ease, opacity 0.24s ease;
}

.page-faq .faq-item__sign::before {
  left: 0;
  top: 7px;
  width: 16px;
  height: 2px;
}

.page-faq .faq-item__sign::after {
  left: 7px;
  top: 0;
  width: 2px;
  height: 16px;
}

.page-faq .faq-item__toggle[aria-expanded="true"] .faq-item__sign::after {
  transform: scaleY(0);
  opacity: 0;
}

.page-faq .faq-item__anchor {
  padding: 3px 2px;
  color: var(--scale);
  font-family: var(--font-mono);
  font-size: var(--fs-14);
  line-height: 1.4;
  text-decoration: none;
  transition: color 0.2s ease;
}

.page-faq .faq-item__anchor:hover {
  color: var(--copper);
}

.page-faq .faq-item__panel[hidden] {
  display: none;
}

.page-faq .faq-item__panel:not([hidden]) {
  animation: faq-panel-in 0.28s ease both;
}

@keyframes faq-panel-in {
  from {
    opacity: 0;
    transform: translateY(-6px);
  }
  to {
    opacity: 1;
    transform: none;
  }
}

.page-faq .faq-item__inner {
  margin-left: 2px;
  padding: 2px 0 22px 18px;
  border-left: 2px solid var(--copper);
}

.page-faq .faq-item__inner p {
  margin: 0 0 12px;
  color: var(--mist);
  font-size: var(--fs-16);
  line-height: 1.85;
  max-width: 38em;
}

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

.page-faq .faq-item__inner strong {
  color: var(--paper);
  font-weight: 600;
}

.page-faq .faq-quote {
  margin: 14px 0 0;
  padding: 12px 16px;
  border-left: 3px solid var(--stoppage);
  border-radius: 0 var(--radius) var(--radius) 0;
  background: rgba(255, 107, 53, 0.09);
  color: var(--paper) !important;
  font-size: var(--fs-14) !important;
  line-height: 1.8;
  letter-spacing: 0.01em;
}

/* ---------- 阵容章节配图 ---------- */
.page-faq .faq-figure {
  margin: 24px 0 0;
  max-width: 400px;
  border: 1px solid var(--line-soft);
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--night);
}

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

/* ---------- 页尾刻度 ---------- */
.page-faq .faq-tail {
  padding: 0 0 78px;
}

.page-faq .faq-tail__inner {
  padding-top: 0;
}

.page-faq .faq-tail__tick {
  height: 12px;
  border-top: 1px solid var(--line);
  background-image: repeating-linear-gradient(
    to right,
    var(--scale) 0 1px,
    transparent 1px 28px
  );
  background-repeat: repeat-x;
  background-position: 0 0;
}

.page-faq .faq-tail__title {
  margin: 30px 0 14px;
  color: var(--paper);
  font-size: var(--fs-28);
  font-weight: 800;
  line-height: 1.3;
}

.page-faq .faq-tail__text {
  margin: 0;
  max-width: 44em;
  color: var(--mist);
  font-size: var(--fs-16);
  line-height: 1.85;
}

.page-faq .faq-tail__links {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 24px;
}

/* ---------- 平板与桌面 ---------- */
@media (min-width: 760px) {
  .page-faq .faq-hero {
    padding: 34px 0 56px;
  }

  .page-faq .faq-split {
    gap: 44px;
    padding-bottom: 96px;
  }

  .page-faq .faq-group {
    padding-top: 32px;
  }

  .page-faq .faq-group + .faq-group {
    margin-top: 60px;
  }

  .page-faq .faq-group__title {
    font-size: var(--fs-28);
  }

  .page-faq .faq-item__head {
    padding: 20px 0;
  }

  .page-faq .faq-figure {
    max-width: 460px;
  }
}

@media (min-width: 1000px) {
  .page-faq .faq-hero__grid {
    grid-template-columns: minmax(0, 0.92fr) minmax(0, 1.08fr);
    align-items: end;
    gap: 56px;
  }

  .page-faq .faq-hero__figure {
    margin-bottom: -20px;
  }

  .page-faq .faq-split {
    grid-template-columns: var(--faq-rail-w) minmax(0, 1fr);
    gap: 60px;
    align-items: start;
  }

  .page-faq .faq-rail {
    position: sticky;
    top: 34px;
  }

  .page-faq .faq-tail__title {
    font-size: var(--fs-44);
  }
}

@media (min-width: 1280px) {
  .page-faq .faq-hero__grid {
    gap: 72px;
  }

  .page-faq .faq-split {
    gap: 76px;
  }
}

/* ---------- 动效降级 ---------- */
@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-item__panel:not([hidden]) {
    animation: none;
  }

  .page-faq .faq-rail__link,
  .page-faq .faq-item__toggle,
  .page-faq .faq-item__sign::before,
  .page-faq .faq-item__sign::after,
  .page-faq .faq-item__anchor {
    transition: none;
  }
}
</>