.page-faq {
  --faq-body-ink: #4A3C31;
  --faq-caption-ink: #6E5F51;
  --faq-line-ink: rgba(34, 26, 20, .18);
  --faq-rule-ink: rgba(34, 26, 20, .14);
  --faq-panel-bg: #FBF7EE;
  --faq-pad: clamp(20px, 3.6vw, 34px);
  --faq-gutter: clamp(16px, 4vw, 32px);
}

/* ---------- 面包屑 ---------- */
.page-faq__crumbs {
  padding-top: 18px;
}

/* ---------- 首屏框景 ---------- */
.page-faq__hero {
  padding-bottom: clamp(36px, 6vw, 64px);
}

.page-faq .faq-hero__frame {
  position: relative;
  overflow: hidden;
  padding: clamp(26px, 5vw, 52px) var(--faq-gutter);
  border: 1px solid var(--line-strong);
  background:
    linear-gradient(180deg, rgba(19, 35, 57, .92) 0%, rgba(11, 22, 38, .72) 100%);
}

.page-faq .faq-hero__accent {
  position: absolute;
  right: -8%;
  bottom: -26%;
  width: min(430px, 62%);
  aspect-ratio: 1;
  border: 1px solid var(--line-strong);
  border-radius: 50%;
  opacity: .3;
  pointer-events: none;
}

.page-faq .faq-hero__accent::after {
  content: "";
  position: absolute;
  inset: 17%;
  border: 1px dashed var(--line);
  border-radius: 50%;
}

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

.page-faq .faq-hero__frame h1 {
  position: relative;
  z-index: 1;
  margin: .3em 0 .46em;
  max-width: 22ch;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(28px, 6.2vw, 58px);
  line-height: 1.14;
  letter-spacing: .008em;
  color: var(--fg);
}

.page-faq .faq-hero__frame .lede {
  position: relative;
  z-index: 1;
  max-width: 58ch;
  font-size: 15px;
  line-height: 1.75;
  color: var(--fg-soft);
}

.page-faq .faq-hero__metrics {
  position: relative;
  z-index: 1;
  display: flex;
  flex-wrap: wrap;
  gap: 18px 44px;
  margin: 30px 0 0;
  padding: 22px 0 0;
  list-style: none;
  border-top: 1px dashed var(--line);
}

.page-faq .faq-hero__metrics li {
  display: flex;
  align-items: baseline;
  flex-wrap: wrap;
  gap: 4px 9px;
  min-width: 0;
}

.page-faq .faq-hero__num {
  font-family: var(--font-data);
  font-variant-numeric: tabular-nums;
  font-weight: 900;
  font-size: clamp(26px, 4.4vw, 42px);
  line-height: 1;
  color: var(--gold);
}

.page-faq .faq-hero__unit {
  font-size: 12.5px;
  letter-spacing: .06em;
  color: var(--pulse);
}

.page-faq .faq-hero__cap {
  flex-basis: 100%;
  font-size: 12.5px;
  line-height: 1.5;
  color: var(--mist);
}

/* ---------- 判断流程 ---------- */
.page-faq__block {
  padding-block: clamp(34px, 6vw, 62px);
}

.page-faq .faq-flow {
  display: grid;
  gap: 12px;
  margin: 24px 0 0;
  padding: 0;
  list-style: none;
}

.page-faq .faq-flow__line {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px 12px;
  padding: 15px 16px;
  border: 1px solid var(--line);
  border-left: 3px solid var(--gold);
  background: rgba(19, 35, 57, .5);
}

.page-faq .faq-flow__tag {
  flex: none;
  display: grid;
  place-items: center;
  width: 24px;
  height: 24px;
  border: 1px solid var(--gold);
  color: var(--gold);
  font-family: var(--font-data);
  font-size: 12px;
  font-weight: 700;
  line-height: 1;
}

.page-faq .faq-flow__node {
  font-family: var(--font-data);
  font-variant-numeric: tabular-nums;
  font-size: 12.5px;
  line-height: 1.6;
  letter-spacing: .01em;
  color: var(--fg-soft);
  overflow-wrap: anywhere;
}

.page-faq .faq-flow__arrow {
  flex: none;
  font-family: var(--font-data);
  font-size: 13px;
  color: var(--orange-soft);
}

/* ---------- 双栏错位网格 ---------- */
.page-faq .faq-split {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 26px;
}

/* ---------- 左侧索引 ---------- */
.page-faq .faq-index {
  border: 1px solid var(--line);
  background: rgba(19, 35, 57, .55);
  padding: 18px 16px 20px;
}

.page-faq .faq-index__title {
  margin: 0 0 14px;
  font-size: 12px;
  letter-spacing: .18em;
  color: var(--mist);
}

.page-faq .faq-index__list {
  position: relative;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-faq .faq-index__list::before {
  content: "";
  position: absolute;
  left: 14px;
  top: 16px;
  bottom: 16px;
  border-left: 1px dashed var(--line-strong);
}

.page-faq .faq-index__item {
  position: relative;
}

.page-faq .faq-index__link {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 9px 0;
  color: var(--fg-soft);
  text-decoration: none;
  font-size: 14.5px;
  line-height: 1.45;
  transition: color .2s ease;
}

.page-faq .faq-index__no {
  position: relative;
  z-index: 1;
  flex: none;
  display: grid;
  place-items: center;
  width: 29px;
  height: 29px;
  border: 1px solid var(--line-strong);
  border-radius: 50%;
  background: var(--ink-night);
  color: var(--gold);
  font-family: var(--font-data);
  font-variant-numeric: tabular-nums;
  font-size: 11.5px;
  font-weight: 700;
  line-height: 1;
  transition: background-color .2s ease, color .2s ease, border-color .2s ease;
}

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

.page-faq .faq-index__link:hover,
.page-faq .faq-index__link:focus-visible {
  color: var(--paper);
}

.page-faq .faq-index__link:hover .faq-index__no {
  border-color: var(--gold);
}

.page-faq .faq-index__link:focus-visible {
  outline: 2px solid var(--gold);
  outline-offset: 3px;
}

.page-faq .faq-index__hint {
  margin: 16px 0 0;
  padding-top: 14px;
  border-top: 1px dashed var(--line);
  font-size: 12px;
  line-height: 1.6;
  color: var(--mist);
}

/* 滚动到位时由脚本点亮，索引同步高亮 */
.page-faq .faq-split:has(#q1.is-active) .faq-index__link[href="#q1"] .faq-index__no,
.page-faq .faq-split:has(#q2.is-active) .faq-index__link[href="#q2"] .faq-index__no,
.page-faq .faq-split:has(#q3.is-active) .faq-index__link[href="#q3"] .faq-index__no,
.page-faq .faq-split:has(#q4.is-active) .faq-index__link[href="#q4"] .faq-index__no,
.page-faq .faq-split:has(#q5.is-active) .faq-index__link[href="#q5"] .faq-index__no {
  background: var(--gold);
  border-color: var(--gold);
  color: var(--ink-night);
}

.page-faq .faq-split:has(#q1.is-active) .faq-index__link[href="#q1"],
.page-faq .faq-split:has(#q2.is-active) .faq-index__link[href="#q2"],
.page-faq .faq-split:has(#q3.is-active) .faq-index__link[href="#q3"],
.page-faq .faq-split:has(#q4.is-active) .faq-index__link[href="#q4"],
.page-faq .faq-split:has(#q5.is-active) .faq-index__link[href="#q5"] {
  color: var(--paper);
}

/* ---------- 右侧折叠说明面板 ---------- */
.page-faq .faq-panels {
  display: grid;
  gap: 20px;
  min-width: 0;
}

.page-faq .faq-block {
  position: relative;
  min-width: 0;
  padding: var(--faq-pad);
  background: var(--paper);
  color: var(--ink-dark);
  border: 1px solid var(--faq-line-ink);
  scroll-margin-top: 96px;
  transition: box-shadow .3s ease;
}

.page-faq .faq-block::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  width: 56px;
  height: 3px;
  background: var(--gold);
}

.page-faq .faq-block.is-active {
  box-shadow: 0 0 0 1px var(--gold-soft), 0 12px 28px rgba(4, 10, 20, .34);
}

.page-faq .faq-block--last::before {
  background: var(--orange);
}

.page-faq .faq-block__head {
  display: grid;
  gap: 8px;
  margin-bottom: 16px;
}

.page-faq .faq-block__no {
  font-family: var(--font-data);
  font-variant-numeric: tabular-nums;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: .13em;
  color: var(--orange);
}

.page-faq .faq-block__title {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(20px, 2.9vw, 28px);
  line-height: 1.26;
  color: var(--ink-dark);
}

.page-faq .faq-block__lead {
  margin: 0;
  font-size: 15px;
  line-height: 1.72;
  color: var(--faq-body-ink);
}

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

.page-faq .faq-points {
  display: grid;
  gap: 11px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-faq .faq-points li {
  position: relative;
  padding-left: 19px;
  font-size: 15px;
  line-height: 1.74;
  color: var(--faq-body-ink);
  overflow-wrap: anywhere;
}

.page-faq .faq-points li::before {
  content: "";
  position: absolute;
  left: 1px;
  top: .78em;
  width: 8px;
  height: 1px;
  background: var(--orange);
}

.page-faq .faq-key {
  font-family: var(--font-data);
  font-variant-numeric: tabular-nums;
  font-weight: 700;
  color: var(--ink-dark);
  background: linear-gradient(transparent 60%, var(--pulse-soft) 60%);
  padding: 0 2px;
}

.page-faq .faq-contact {
  font-family: var(--font-data);
  font-size: 14px;
  font-weight: 700;
  color: var(--ink-dark);
  background: var(--paper-hi);
  border-bottom: 1px solid var(--gold);
  padding: 0 2px;
  overflow-wrap: anywhere;
}

.page-faq .faq-block__note {
  margin: 18px 0 0;
  padding-top: 14px;
  border-top: 1px dashed var(--faq-rule-ink);
  font-size: 14px;
  line-height: 1.72;
  color: var(--faq-body-ink);
}

.page-faq .faq-inline-link {
  color: var(--ink-dark);
  text-decoration: none;
  border-bottom: 1px solid var(--orange);
  font-weight: 700;
}

.page-faq .faq-inline-link:hover,
.page-faq .faq-inline-link:focus-visible {
  background: var(--pulse-soft);
  outline: none;
}

/* ---------- 原生折叠 ---------- */
.page-faq .faq-fold {
  margin-top: 18px;
  border: 1px solid var(--faq-line-ink);
  background: var(--faq-panel-bg);
}

.page-faq .faq-fold__summary {
  display: flex;
  align-items: baseline;
  gap: 10px;
  padding: 12px 15px;
  cursor: pointer;
  list-style: none;
  font-size: 14px;
  font-weight: 700;
  line-height: 1.55;
  color: var(--ink-dark);
}

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

.page-faq .faq-fold__summary::before {
  content: "+";
  flex: none;
  font-family: var(--font-data);
  font-size: 15px;
  font-weight: 900;
  color: var(--orange);
}

.page-faq .faq-fold[open] .faq-fold__summary::before {
  content: "–";
}

.page-faq .faq-fold__summary:focus-visible {
  outline: 2px solid var(--gold);
  outline-offset: -2px;
}

.page-faq .faq-fold__body {
  padding: 12px 15px 15px;
  border-top: 1px dashed var(--faq-rule-ink);
  font-size: 14px;
  line-height: 1.74;
  color: var(--faq-body-ink);
}

/* ---------- 图片 ---------- */
.page-faq .faq-fig {
  margin: 20px 0 0;
}

.page-faq .faq-fig .figure__frame {
  border: 1px solid var(--faq-line-ink);
  background: var(--ink-night);
  overflow: hidden;
}

.page-faq .faq-fig .figure__img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
  filter: saturate(.72) contrast(1.08);
}

.page-faq .faq-fig .figure__caption {
  margin-top: 9px;
  font-size: 12.5px;
  line-height: 1.6;
  color: var(--faq-caption-ink);
}

/* ---------- 提交模板 ---------- */
.page-faq .faq-template {
  margin-top: 18px;
  border: 1px dashed var(--faq-line-ink);
  background: var(--faq-panel-bg);
}

.page-faq .faq-template__title {
  margin: 0;
  padding: 10px 15px;
  border-bottom: 1px dashed var(--faq-rule-ink);
  font-size: 12px;
  letter-spacing: .12em;
  color: var(--orange);
}

.page-faq .faq-template__body {
  margin: 0;
  padding: 14px 15px;
  font-family: var(--font-data);
  font-variant-numeric: tabular-nums;
  font-size: 13px;
  line-height: 1.85;
  color: var(--ink-dark);
  white-space: pre-wrap;
  overflow-wrap: anywhere;
  user-select: all;
}

/* ---------- 收尾条带 ---------- */
.page-faq .faq-tail__inner {
  display: grid;
  gap: 22px;
  padding: clamp(24px, 4vw, 38px) var(--faq-gutter);
  border: 1px solid var(--line-strong);
  border-top: 3px solid var(--orange);
  background: linear-gradient(135deg, rgba(19, 35, 57, .9), rgba(11, 22, 38, .7));
}

.page-faq .faq-tail__title {
  margin: 0 0 10px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(21px, 3vw, 30px);
  line-height: 1.28;
  color: var(--fg);
}

.page-faq .faq-tail__desc {
  margin: 0;
  max-width: 46ch;
  font-size: 15px;
  line-height: 1.72;
  color: var(--fg-soft);
}

.page-faq .faq-tail__links {
  display: grid;
  gap: 8px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-faq .faq-tail__link {
  display: flex;
  align-items: baseline;
  gap: 12px;
  padding: 11px 14px;
  border: 1px solid var(--line);
  color: var(--fg);
  text-decoration: none;
  font-size: 15px;
  transition: transform .22s ease, border-color .22s ease, background-color .22s ease;
}

.page-faq .faq-tail__link-no {
  font-family: var(--font-data);
  font-variant-numeric: tabular-nums;
  font-size: 11.5px;
  font-weight: 700;
  color: var(--gold);
}

.page-faq .faq-tail__link:hover,
.page-faq .faq-tail__link:focus-visible {
  border-color: var(--gold);
  background: rgba(201, 162, 39, .1);
  transform: translateY(-3px);
  outline: none;
}

.page-faq .faq-tail__link:focus-visible {
  outline: 2px solid var(--gold);
  outline-offset: 2px;
}

/* ---------- 响应式 ---------- */
@media (min-width: 700px) {
  .page-faq .faq-tail__links {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 900px) {
  .page-faq .faq-split {
    grid-template-columns: minmax(210px, 4fr) minmax(0, 8fr);
    gap: 42px;
    align-items: start;
  }

  .page-faq .faq-index {
    position: sticky;
    top: 96px;
  }

  .page-faq .faq-tail__inner {
    grid-template-columns: minmax(0, 6fr) minmax(0, 6fr);
    align-items: center;
    gap: 34px;
  }
}

@media (min-width: 1100px) {
  .page-faq .faq-index {
    padding: 22px 20px 24px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-index__link,
  .page-faq .faq-index__no,
  .page-faq .faq-block,
  .page-faq .faq-tail__link {
    transition: none;
  }

  .page-faq .faq-tail__link:hover,
  .page-faq .faq-tail__link:focus-visible {
    transform: none;
  }
}