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

/* ---------- 首屏海报 ---------- */
.page-faq .faq-hero {
  background: var(--teal);
  color: var(--paper);
  border-bottom: var(--line);
  position: relative;
  overflow: hidden;
}

.page-faq .faq-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    repeating-linear-gradient(to right, rgba(247, 245, 241, .08) 0 1px, transparent 1px 48px),
    repeating-linear-gradient(to bottom, rgba(247, 245, 241, .08) 0 1px, transparent 1px 48px);
  pointer-events: none;
}

.page-faq .faq-hero__inner {
  position: relative;
  display: grid;
  gap: 32px;
  padding-top: 28px;
  padding-bottom: 40px;
}

.page-faq .faq-hero__crumb {
  color: rgba(247, 245, 241, .68);
  margin-bottom: 24px;
}

.page-faq .faq-hero__crumb a {
  color: rgba(247, 245, 241, .68);
  text-decoration: none;
}

.page-faq .faq-hero__crumb a:hover,
.page-faq .faq-hero__crumb a:focus-visible {
  color: var(--flare);
}

.page-faq .faq-hero__crumb [aria-current="page"] {
  color: var(--paper);
}

.page-faq .faq-hero__eyebrow {
  color: var(--flare);
  margin: 0 0 12px;
}

.page-faq .faq-hero__title {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: var(--fs-display);
  line-height: .94;
  letter-spacing: -.02em;
  margin: 0 0 20px;
  color: var(--paper);
  overflow-wrap: anywhere;
}

.page-faq .faq-hero__lead {
  font-family: var(--font-body);
  font-size: var(--fs-body);
  line-height: 1.85;
  max-width: 46ch;
  margin: 0 0 24px;
  color: rgba(247, 245, 241, .9);
}

.page-faq .faq-hero__jump {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: var(--fs-anno);
  letter-spacing: .18em;
  color: var(--paper);
  text-decoration: none;
  border: 1px solid rgba(247, 245, 241, .55);
  padding: 12px 20px;
  transition: background-color var(--dur) var(--ease), color var(--dur) var(--ease), border-color var(--dur) var(--ease);
}

.page-faq .faq-hero__jump:hover,
.page-faq .faq-hero__jump:focus-visible {
  background: var(--flare);
  border-color: var(--flare);
  color: var(--ink);
}

.page-faq .faq-hero__figure {
  position: relative;
  margin: 0;
  border: 1px solid rgba(247, 245, 241, .3);
}

.page-faq .faq-hero__figure img {
  display: block;
  width: 100%;
  height: 240px;
  object-fit: cover;
}

.page-faq .faq-hero__figure::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(160deg, rgba(14, 59, 58, .45), rgba(14, 59, 58, .88));
  pointer-events: none;
}

/* ---------- 双栏骨架 ---------- */
.page-faq .faq-shell {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0;
  padding-top: 32px;
  padding-bottom: 72px;
}

/* ---------- 索引 ---------- */
.page-faq .faq-index {
  border: var(--line);
  background: var(--grid);
  padding: 20px;
  max-height: 340px;
  overflow-y: auto;
  margin-bottom: 32px;
}

.page-faq .faq-index__title {
  font-family: var(--font-head);
  font-size: var(--fs-body);
  font-weight: 700;
  margin: 0 0 16px;
  padding-bottom: 10px;
  border-bottom: var(--line);
  letter-spacing: .04em;
}

.page-faq .faq-index__group + .faq-index__group {
  margin-top: 18px;
}

.page-faq .faq-index__cat {
  margin: 0 0 8px;
}

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

.page-faq .faq-index__list a {
  display: grid;
  grid-template-columns: 30px 1fr;
  gap: 10px;
  align-items: baseline;
  padding: 7px 8px 7px 10px;
  border-left: 3px solid transparent;
  color: var(--ink);
  text-decoration: none;
  font-family: var(--font-body);
  font-size: 15px;
  line-height: 1.55;
  transition: background-color var(--dur) var(--ease), border-color var(--dur) var(--ease);
}

.page-faq .faq-index__list a:hover,
.page-faq .faq-index__list a:focus-visible {
  background: var(--warm);
  border-left-color: var(--flare);
}

.page-faq .faq-index__num {
  color: var(--mute);
  font-size: var(--fs-anno);
  letter-spacing: .04em;
}

.page-faq .faq-index__list a:hover .faq-index__num,
.page-faq .faq-index__list a:focus-visible .faq-index__num {
  color: var(--flare);
}

/* ---------- 答案分组 ---------- */
.page-faq .faq-group + .faq-group {
  margin-top: 56px;
}

.page-faq .faq-group__head {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 8px 20px;
  border-bottom: var(--line);
  padding-bottom: 12px;
  margin-bottom: 4px;
}

.page-faq .faq-group__title {
  font-family: var(--font-head);
  font-size: var(--fs-head);
  font-weight: 700;
  line-height: 1.15;
  margin: 0;
  letter-spacing: -.01em;
}

.page-faq .faq-group__note {
  font-family: var(--font-body);
  font-size: 15px;
  color: var(--mute);
  margin: 0;
}

/* ---------- 单条问答 ---------- */
.page-faq .qa {
  border-bottom: var(--line-soft);
  scroll-margin-top: calc(var(--top-h) + 24px);
}

.page-faq .qa__summary {
  display: grid;
  grid-template-columns: 44px 1fr 20px;
  gap: 12px;
  align-items: baseline;
  cursor: pointer;
  list-style: none;
  padding: 22px 0 14px;
}

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

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

.page-faq .qa__num {
  font-family: var(--font-mono);
  font-size: var(--fs-head);
  font-weight: 700;
  line-height: 1;
  color: var(--bamboo);
  letter-spacing: .04em;
}

.page-faq .qa__q {
  font-family: var(--font-head);
  font-size: var(--fs-body);
  font-weight: 700;
  line-height: 1.5;
  color: var(--ink);
}

.page-faq .qa__mark {
  position: relative;
  width: 14px;
  height: 14px;
  align-self: center;
}

.page-faq .qa__mark::before,
.page-faq .qa__mark::after {
  content: "";
  position: absolute;
  background: var(--ink);
}

.page-faq .qa__mark::before {
  left: 0;
  top: 6px;
  width: 14px;
  height: 1px;
}

.page-faq .qa__mark::after {
  left: 6px;
  top: 0;
  width: 1px;
  height: 14px;
  transition: transform var(--dur) var(--ease);
}

.page-faq .qa[open] .qa__mark::after {
  transform: scaleY(0);
}

.page-faq .qa__body {
  padding: 0 0 26px 56px;
}

.page-faq .qa__text p,
.page-faq .qa__body > p {
  font-family: var(--font-body);
  font-size: var(--fs-body);
  line-height: 1.85;
  margin: 0 0 12px;
  color: #23262a;
}

.page-faq .qa__body .conclusion {
  font-family: var(--font-head);
  font-size: var(--fs-body);
  font-weight: 700;
  line-height: 1.7;
  margin: 0 0 14px;
  color: var(--ink);
}

.page-faq .qa__body .conclusion strong {
  color: var(--ink);
}

.page-faq .qa__more {
  margin-top: 14px;
  font-size: 15px;
}

.page-faq .qa__more a {
  color: var(--teal);
  text-decoration: none;
  border-bottom: 2px solid var(--flare);
  padding-bottom: 2px;
}

.page-faq .qa__more a:hover,
.page-faq .qa__more a:focus-visible {
  color: var(--flare);
}

/* ---------- 对照表 ---------- */
.page-faq .faq-table {
  width: 100%;
  border-collapse: collapse;
  margin: 6px 0 4px;
  background: var(--grid);
  border: var(--line);
  font-size: 15px;
}

.page-faq .faq-table__caption {
  text-align: left;
  font-family: var(--font-mono);
  font-size: var(--fs-anno);
  letter-spacing: .18em;
  color: var(--mute);
  padding: 8px 12px;
  background: var(--paper);
  border-bottom: var(--line-soft);
}

.page-faq .faq-table th,
.page-faq .faq-table td {
  text-align: left;
  padding: 10px 12px;
  border-bottom: var(--line-soft);
  line-height: 1.6;
  font-family: var(--font-body);
}

.page-faq .faq-table thead th {
  background: var(--bamboo);
  color: var(--paper);
  font-family: var(--font-head);
  font-weight: 700;
  border-bottom: none;
}

.page-faq .faq-table tbody th {
  font-weight: 700;
  color: var(--ink);
  white-space: nowrap;
}

.page-faq .faq-table tbody td {
  color: #23262a;
}

.page-faq .faq-table tbody tr:last-child th,
.page-faq .faq-table tbody tr:last-child td {
  border-bottom: none;
}

/* ---------- 答案区配图 ---------- */
.page-faq .qa__figure {
  margin: 0;
  border: var(--line);
  background: var(--grid);
}

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

.page-faq .qa__figure figcaption {
  font-family: var(--font-body);
  font-size: 15px;
  color: var(--mute);
  padding: 8px 12px;
  border-top: var(--line-soft);
}

/* ---------- 收尾 ---------- */
.page-faq .faq-tail {
  margin-top: 56px;
  border: var(--line);
  background: var(--indigo);
  color: var(--paper);
  padding: 28px 24px;
  display: grid;
  gap: 20px;
}

.page-faq .faq-tail__text {
  font-family: var(--font-body);
  font-size: var(--fs-body);
  line-height: 1.85;
  margin: 0;
  max-width: 52ch;
  color: rgba(247, 245, 241, .92);
}

.page-faq .faq-tail__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.page-faq .faq-tail__link {
  font-family: var(--font-mono);
  font-size: var(--fs-anno);
  letter-spacing: .18em;
  text-decoration: none;
  color: var(--ink);
  background: var(--flare);
  border: 1px solid var(--flare);
  padding: 12px 20px;
  transition: background-color var(--dur) var(--ease), color var(--dur) var(--ease);
}

.page-faq .faq-tail__link--ghost {
  background: transparent;
  color: var(--paper);
  border-color: rgba(247, 245, 241, .55);
}

.page-faq .faq-tail__link:hover,
.page-faq .faq-tail__link:focus-visible {
  background: var(--paper);
  color: var(--ink);
  border-color: var(--paper);
}

/* ---------- 响应式 ---------- */
@media (min-width: 720px) {
  .page-faq .qa__body--split {
    display: grid;
    grid-template-columns: 1fr;
    gap: 20px;
  }

  .page-faq .faq-hero__figure img {
    height: 320px;
  }
}

@media (min-width: 1000px) {
  .page-faq .faq-hero__inner {
    grid-template-columns: 1.05fr .95fr;
    align-items: center;
    gap: 48px;
    padding-top: 40px;
    padding-bottom: 56px;
  }

  .page-faq .faq-hero__figure img {
    height: 420px;
  }

  .page-faq .faq-shell {
    grid-template-columns: 280px 1fr;
    gap: 56px;
    padding-top: 48px;
    padding-bottom: 96px;
  }

  .page-faq .faq-index {
    position: sticky;
    top: calc(var(--top-h) + 24px);
    align-self: start;
    max-height: calc(100vh - var(--top-h) - 56px);
    margin-bottom: 0;
    padding: 22px 20px;
  }

  .page-faq .qa__body--split {
    grid-template-columns: 1fr 300px;
    align-items: start;
  }

  .page-faq .faq-tail {
    grid-template-columns: 1fr auto;
    align-items: center;
    padding: 32px 28px;
  }
}

@media (min-width: 1200px) {
  .page-faq .faq-hero__title {
    max-width: 11ch;
  }

  .page-faq .qa__body {
    padding-left: 56px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-hero__jump,
  .page-faq .faq-index__list a,
  .page-faq .qa__mark::after,
  .page-faq .faq-tail__link {
    transition: none;
  }
}