.page-faq {
  --faq-narrow: 880px;
  --faq-card-shadow: 0 1px 0 rgba(237, 228, 211, .10), 0 20px 36px -24px rgba(0, 0, 0, .95);
  --faq-split-gap: clamp(20px, 3vw, 36px);
  background: var(--c-brick);
  color: var(--c-on-dark);
  overflow-x: hidden;
}

/* ---------- 首屏 · 厅堂告示 ---------- */

.page-faq .faq-hero {
  position: relative;
  padding: calc(var(--header-h) + 34px) 0 clamp(40px, 6vw, 66px);
  background:
    radial-gradient(120% 96% at 84% -10%, rgba(201, 160, 80, .16), transparent 62%),
    radial-gradient(90% 70% at 4% 0%, rgba(46, 66, 86, .40), transparent 62%),
    linear-gradient(180deg, var(--c-ink) 0%, var(--c-brick) 100%);
  border-bottom: 1px solid var(--c-line);
}

.page-faq .faq-hero__grid {
  display: grid;
  gap: clamp(28px, 4vw, 52px);
  align-items: center;
}

.page-faq .breadcrumb {
  margin: 0 0 18px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .06em;
}

.page-faq .breadcrumb a {
  color: var(--c-brass);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: border-color var(--dur) var(--ease), color var(--dur) var(--ease);
}

.page-faq .breadcrumb a:hover,
.page-faq .breadcrumb a:focus-visible {
  color: var(--c-brass-hi);
  border-bottom-color: var(--c-brass-hi);
}

.page-faq .faq-hero__text .kicker {
  display: inline-block;
  margin: 0 0 14px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .18em;
  color: var(--c-brass);
  border-left: 2px solid var(--c-cinnabar);
  padding-left: 10px;
}

.page-faq h1 {
  margin: 0 0 18px;
  font-family: var(--font-serif);
  font-weight: 500;
  font-size: clamp(27px, 4.6vw, 44px);
  line-height: 1.32;
  letter-spacing: .03em;
  color: var(--c-paper);
}

.page-faq .faq-hero__lead {
  margin: 0 0 22px;
  max-width: 42ch;
  font-size: 15px;
  line-height: 1.95;
  color: var(--c-on-dark);
}

.page-faq .faq-hero__meta {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin: 0;
}

.page-faq .faq-hero__meta .meta-chip {
  background: rgba(237, 228, 211, .05);
  border: 1px solid var(--c-line);
}

.page-faq .faq-hero__figure {
  max-width: 100%;
  box-shadow: var(--faq-card-shadow);
}

/* ---------- 跳转条 ---------- */

.page-faq .faq-jump {
  position: sticky;
  top: var(--header-h);
  z-index: 6;
  background: rgba(30, 30, 28, .95);
  border-bottom: 1px solid var(--c-line);
  -webkit-backdrop-filter: blur(8px);
  backdrop-filter: blur(8px);
}

.page-faq .faq-jump__inner {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 9px 0;
}

.page-faq .faq-jump__label {
  flex: none;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .16em;
  color: var(--c-on-dark-dim);
}

.page-faq .faq-jump__list {
  display: flex;
  gap: 6px;
  margin: 0;
  padding: 0 2px 2px;
  list-style: none;
  overflow-x: auto;
  scrollbar-width: thin;
}

.page-faq .faq-jump__list a {
  display: inline-flex;
  align-items: baseline;
  gap: 7px;
  white-space: nowrap;
  padding: 7px 12px;
  border: 1px solid var(--c-line-soft);
  border-radius: var(--radius);
  font-family: var(--font-mono);
  font-size: 12.5px;
  color: var(--c-on-dark-dim);
  text-decoration: none;
  transition: color var(--dur) var(--ease), border-color var(--dur) var(--ease), background var(--dur) var(--ease);
}

.page-faq .faq-jump__list a span {
  color: var(--c-brass);
}

.page-faq .faq-jump__list a:hover,
.page-faq .faq-jump__list a:focus-visible {
  color: var(--c-paper);
  border-color: var(--c-brass);
  background: rgba(201, 160, 80, .10);
}

/* ---------- 正文画布 ---------- */

.page-faq .faq-body {
  background:
    linear-gradient(180deg, var(--c-brick) 0%, var(--c-ink) 100%);
}

.page-faq .faq-rail {
  max-width: var(--faq-narrow);
  margin-inline: auto;
}

.page-faq .faq-group {
  scroll-margin-top: calc(var(--header-h) + 76px);
  padding-block: clamp(38px, 6vw, 68px);
  border-top: 1px solid var(--c-line-faint);
}

.page-faq .faq-group:first-child {
  border-top: 0;
  padding-top: 4px;
}

.page-faq .faq-group__head {
  position: relative;
  padding-left: 50px;
}

.page-faq .faq-group__num {
  position: absolute;
  left: 0;
  top: -4px;
  font-family: var(--font-mono);
  font-size: 26px;
  letter-spacing: .04em;
  color: var(--c-brass);
  opacity: .92;
}

.page-faq .faq-group__title {
  margin: 0 0 10px;
  font-family: var(--font-serif);
  font-weight: 500;
  font-size: clamp(20px, 3.2vw, 27px);
  line-height: 1.45;
  letter-spacing: .03em;
  color: var(--c-paper);
}

.page-faq .faq-group__title::after {
  content: "";
  display: block;
  width: 54px;
  height: 1px;
  margin-top: 12px;
  background: linear-gradient(90deg, var(--c-brass), rgba(201, 160, 80, 0));
}

.page-faq .faq-group__lead {
  margin: 0;
  max-width: 60ch;
  font-size: 14.5px;
  line-height: 1.9;
  color: var(--c-on-dark-dim);
}

.page-faq .faq-group__body {
  margin-top: 24px;
}

/* ---------- 自查清单 ---------- */

.page-faq .faq-check {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 10px;
}

.page-faq .faq-check__label {
  display: grid;
  grid-template-columns: auto auto minmax(0, 1fr);
  gap: 12px;
  align-items: start;
  padding: 14px 16px;
  background: var(--c-paper);
  color: var(--c-text);
  border-radius: var(--radius);
  border-left: 3px solid var(--c-cinnabar);
  box-shadow: var(--faq-card-shadow);
  cursor: pointer;
  transition: background var(--dur) var(--ease), border-color var(--dur) var(--ease);
}

.page-faq .faq-check__label:has(.faq-check__box:checked) {
  border-left-color: var(--c-brass);
  background: linear-gradient(0deg, rgba(201, 160, 80, .12), rgba(201, 160, 80, .12)), var(--c-paper);
}

.page-faq .faq-check__box {
  -webkit-appearance: none;
  appearance: none;
  flex: none;
  width: 18px;
  height: 18px;
  margin: 3px 0 0;
  background: rgba(255, 255, 255, .9);
  border: 1px solid var(--c-wood-light);
  border-radius: 2px;
  position: relative;
  cursor: pointer;
  transition: background var(--dur) var(--ease), border-color var(--dur) var(--ease);
}

.page-faq .faq-check__box:checked {
  background: var(--c-cinnabar);
  border-color: var(--c-cinnabar);
}

.page-faq .faq-check__box:checked::after {
  content: "";
  position: absolute;
  left: 5px;
  top: 1px;
  width: 5px;
  height: 10px;
  border-right: 2px solid var(--c-paper);
  border-bottom: 2px solid var(--c-paper);
  transform: rotate(40deg);
}

.page-faq .faq-check__box:focus-visible {
  outline: 2px solid var(--c-stone);
  outline-offset: 2px;
}

.page-faq .faq-check__num {
  font-family: var(--font-mono);
  font-size: 12.5px;
  color: var(--c-wood);
  padding-top: 3px;
}

.page-faq .faq-check__text {
  font-size: 14.5px;
  line-height: 1.85;
}

.page-faq .faq-group__figure {
  margin: 22px 0 0;
}

/* ---------- 问答条 ---------- */

.page-faq .faq-list {
  display: grid;
  gap: 10px;
}

.page-faq .faq-q {
  background: var(--c-paper);
  color: var(--c-text);
  border-radius: var(--radius);
  border-left: 3px solid var(--c-brass);
  box-shadow: var(--faq-card-shadow);
  overflow: hidden;
  transition: border-color var(--dur) var(--ease);
}

.page-faq .faq-q[open] {
  border-left-color: var(--c-cinnabar);
}

.page-faq .faq-q__q {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  gap: 12px;
  align-items: baseline;
  padding: 15px 16px;
  cursor: pointer;
  list-style: none;
  font-family: var(--font-serif);
  font-size: clamp(15px, 2.1vw, 17px);
  line-height: 1.62;
  letter-spacing: .02em;
  color: var(--c-text);
}

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

.page-faq .faq-q__q:hover {
  background: rgba(107, 74, 47, .06);
}

.page-faq .faq-q__q:focus-visible {
  outline: 2px solid var(--c-stone);
  outline-offset: -3px;
}

.page-faq .faq-q__idx {
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: .04em;
  color: var(--c-cinnabar);
  padding-top: 4px;
}

.page-faq .faq-q[open] .faq-q__idx {
  color: var(--c-brass);
}

.page-faq .faq-q__mark {
  font-family: var(--font-mono);
  font-size: 18px;
  line-height: 1;
  color: var(--c-brass);
}

.page-faq .faq-q__mark::before {
  content: "+";
}

.page-faq .faq-q[open] .faq-q__mark::before {
  content: "−";
}

.page-faq .faq-q__a {
  padding: 4px 18px 18px 16px;
  background: rgba(107, 74, 47, .06);
  border-top: 1px dashed rgba(107, 74, 47, .26);
}

.page-faq .faq-q__a p {
  margin: 12px 0 0;
  font-size: 14.5px;
  line-height: 1.92;
  color: var(--c-text);
}

.page-faq .faq-q__a a {
  color: var(--c-cinnabar);
  text-decoration: none;
  border-bottom: 1px solid rgba(158, 59, 50, .38);
  transition: color var(--dur) var(--ease), border-color var(--dur) var(--ease);
}

.page-faq .faq-q__a a:hover,
.page-faq .faq-q__a a:focus-visible {
  color: var(--c-brass);
  border-bottom-color: var(--c-brass);
}

/* ---------- 平板以上 ---------- */

@media (min-width: 820px) {
  .page-faq .faq-hero__grid {
    grid-template-columns: minmax(0, 1.06fr) minmax(0, .94fr);
  }

  .page-faq .faq-hero__text {
    max-width: 52ch;
  }

  .page-faq .faq-group__body--split {
    display: grid;
    grid-template-columns: minmax(0, 1.34fr) minmax(0, 1fr);
    gap: var(--faq-split-gap);
    align-items: start;
  }

  .page-faq .faq-group__figure {
    margin-top: 0;
  }

  .page-faq .faq-q:nth-child(even) {
    margin-left: 20px;
  }
}

@media (min-width: 1100px) {
  .page-faq .faq-group__head {
    padding-left: 62px;
  }

  .page-faq .faq-group__num {
    font-size: 30px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq * {
    transition-duration: .01ms !important;
  }
}