.page-faq {
  --faq-rail: 268px;
  --faq-gap: 44px;
}

.page-faq .breadcrumb {
  padding: 18px 0 10px;
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  padding: 4px 0 44px;
  border-bottom: 1px solid var(--hair);
  background:
    radial-gradient(120% 100% at 8% 0%, rgba(53, 216, 200, .10), transparent 58%),
    radial-gradient(90% 90% at 100% 10%, rgba(201, 255, 77, .07), transparent 60%),
    linear-gradient(180deg, rgba(18, 32, 51, .85) 0%, rgba(11, 31, 28, .72) 58%, var(--ink) 100%);
  overflow: hidden;
}

.page-faq .faq-hero::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background-image: repeating-linear-gradient(115deg, rgba(231, 240, 236, .05) 0 1px, transparent 1px 13px);
  opacity: .5;
}

.page-faq .faq-hero__inner {
  position: relative;
  z-index: 1;
  display: grid;
  gap: 28px;
}

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

.page-faq .eyebrow {
  margin: 0 0 10px;
  font-family: var(--font-numeric);
  font-size: 12px;
  letter-spacing: .08em;
  text-transform: uppercase;
  color: var(--muted);
}

.page-faq .page-title {
  margin: 0 0 14px;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(30px, 6vw, 52px);
  line-height: 1.14;
  letter-spacing: .02em;
  color: var(--text);
}

.page-faq .lede {
  max-width: 62ch;
  margin: 0;
  font-size: 16.5px;
  line-height: 1.75;
  color: var(--muted);
}

.page-faq .faq-hero__facts {
  display: flex;
  flex-wrap: wrap;
  gap: 12px 28px;
  margin: 24px 0 0;
  padding: 16px 0 0;
  list-style: none;
  border-top: 1px solid var(--hair);
}

.page-faq .faq-fact {
  display: flex;
  flex-direction: column;
  gap: 4px;
  min-width: 0;
}

.page-faq .faq-fact__num {
  font-family: var(--font-numeric);
  font-variant-numeric: tabular-nums;
  font-size: 24px;
  font-weight: 600;
  color: var(--lime);
  letter-spacing: -.01em;
}

.page-faq .faq-fact__label {
  font-size: 12px;
  letter-spacing: .06em;
  color: var(--muted);
}

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

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

.page-faq .figure-frame__caption {
  font-size: 12.5px;
  color: var(--muted);
}

/* ---------- 主布局 ---------- */
.page-faq .faq-layout {
  display: grid;
  gap: 26px;
  padding: 34px 0 72px;
  align-items: start;
}

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

.page-faq .faq-toc {
  padding: 16px 18px;
  background: linear-gradient(180deg, rgba(11, 31, 28, .92), rgba(7, 14, 24, .92));
  border: 1px solid var(--hair);
  border-left: 2px solid var(--lime);
  border-radius: var(--radius);
  box-shadow: var(--shadow-1);
}

.page-faq .index-rail__title {
  margin: 0 0 12px;
  font-family: var(--font-numeric);
  font-size: 12px;
  letter-spacing: .08em;
  color: var(--muted);
}

.page-faq .index-rail__list {
  display: flex;
  flex-wrap: wrap;
  gap: 6px 14px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-faq .faq-toc__link {
  display: inline-block;
  padding: 3px 0;
  font-size: 14px;
  color: var(--text);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color 150ms var(--ease), border-color 150ms var(--ease);
}

.page-faq .faq-toc__link--sub {
  font-size: 13px;
  color: var(--muted);
}

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

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

/* ---------- 章节通用 ---------- */
.page-faq section[id] {
  scroll-margin-top: 150px;
}

.page-faq .section {
  padding: 0 0 46px;
  margin-bottom: 40px;
  border-bottom: 1px solid var(--hair);
}

.page-faq .section:last-of-type {
  border-bottom: 0;
  margin-bottom: 0;
  padding-bottom: 0;
}

.page-faq .faq-section__head {
  margin-bottom: 22px;
}

.page-faq .section-title {
  margin: 0 0 10px;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(22px, 3.4vw, 30px);
  letter-spacing: .04em;
  color: var(--text);
}

/* ---------- 步骤 ---------- */
.page-faq .faq-steps {
  display: grid;
  gap: 14px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-faq .faq-step {
  display: grid;
  grid-template-columns: 44px minmax(0, 1fr);
  gap: 14px;
  padding: 16px 16px 16px 0;
  background: linear-gradient(90deg, rgba(18, 32, 51, .78), rgba(18, 32, 51, .28));
  border: 1px solid var(--hair);
  border-left: 2px solid var(--accent, var(--lime));
  border-radius: var(--radius);
  transition: border-color 160ms var(--ease), transform 160ms var(--ease);
}

.page-faq .faq-step:hover {
  border-color: var(--hair-strong);
  transform: translateY(-1px);
}

.page-faq .faq-step__num {
  font-family: var(--font-numeric);
  font-variant-numeric: tabular-nums;
  font-size: 20px;
  font-weight: 600;
  color: var(--accent, var(--lime));
  text-align: right;
  line-height: 1.3;
}

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

.page-faq .faq-step__title {
  margin: 0 0 6px;
  font-family: var(--font-editorial);
  font-size: 17px;
  font-weight: 600;
  color: var(--text);
}

.page-faq .faq-step__body p {
  margin: 0;
  font-size: 15.5px;
  line-height: 1.7;
  color: var(--muted);
}

.page-faq .faq-step__body a {
  color: var(--text);
  text-decoration: none;
  border-bottom: 1px solid var(--accent, var(--lime));
}

.page-faq .faq-step__body a:hover,
.page-faq .faq-step__body a:focus-visible {
  color: var(--accent, var(--lime));
}

.page-faq .faq-steps--tight .faq-step {
  background: linear-gradient(90deg, rgba(11, 31, 28, .8), rgba(18, 32, 51, .3));
}

/* ---------- 检索卡片 ---------- */
.page-faq .faq-cards {
  display: grid;
  gap: 14px;
}

.page-faq .faq-card {
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding: 18px 18px 16px;
  border-radius: var(--radius);
  border: 1px solid var(--hair);
  border-top: 2px solid var(--card-accent, var(--lime));
  box-shadow: var(--shadow-1);
  transition: border-color 160ms var(--ease), transform 160ms var(--ease), box-shadow 160ms var(--ease);
}

.page-faq .faq-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-2);
  border-color: var(--hair-strong);
  border-top-color: var(--card-accent, var(--lime));
}

.page-faq .faq-card--lime { --card-accent: var(--lime); }
.page-faq .faq-card--teal { --card-accent: var(--teal); }
.page-faq .faq-card--orange { --card-accent: var(--orange); }
.page-faq .faq-card--bronze { --card-accent: var(--bronze); }

.page-faq .faq-card__title {
  margin: 0;
  font-family: var(--font-display);
  font-size: 18px;
  letter-spacing: .05em;
  color: var(--text);
}

.page-faq .faq-card__text {
  margin: 0;
  font-size: 15.5px;
  line-height: 1.72;
  color: var(--muted);
}

.page-faq .faq-card__meta {
  margin: 0;
  font-family: var(--font-numeric);
  font-size: 12.5px;
  letter-spacing: .04em;
  color: var(--card-accent, var(--lime));
}

.page-faq .faq-card__link {
  margin-top: auto;
  padding-top: 8px;
  font-size: 13px;
  letter-spacing: .04em;
  color: var(--text);
  text-decoration: none;
  border-top: 1px solid var(--hair);
}

.page-faq .faq-card__link:hover,
.page-faq .faq-card__link:focus-visible {
  color: var(--card-accent, var(--lime));
}

/* ---------- 字段词典 ---------- */
.page-faq .field-table-wrap {
  border: 1px solid var(--hair);
  border-radius: var(--radius);
  background: rgba(18, 32, 51, .45);
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}

.page-faq .field-table {
  width: 100%;
  min-width: 720px;
  border-collapse: collapse;
  font-size: 14.5px;
}

.page-faq .field-table caption {
  padding: 12px 14px;
  text-align: left;
  font-size: 12.5px;
  line-height: 1.6;
  color: var(--muted);
  border-bottom: 1px solid var(--hair);
}

.page-faq .field-table th,
.page-faq .field-table td {
  padding: 9px 12px;
  text-align: left;
  border-bottom: 1px solid var(--hair);
  vertical-align: top;
}

.page-faq .field-table thead th {
  font-family: var(--font-numeric);
  font-size: 12px;
  letter-spacing: .08em;
  color: var(--muted);
  background: var(--panel);
  border-bottom: 1px solid var(--hair-strong);
}

.page-faq .field-table tbody th[scope="row"] {
  font-family: var(--font-numeric);
  font-size: 13.5px;
  font-weight: 600;
  color: var(--text);
  white-space: nowrap;
}

.page-faq .field-table tbody td:nth-child(3) {
  font-family: var(--font-numeric);
  font-variant-numeric: tabular-nums;
  color: var(--accent, var(--lime));
}

.page-faq .field-table tbody td:nth-child(4) {
  color: var(--muted);
}

.page-faq .field-table tbody.faq-group--lime { --accent: var(--lime); }
.page-faq .field-table tbody.faq-group--teal { --accent: var(--teal); }
.page-faq .field-table tbody.faq-group--orange { --accent: var(--orange); }
.page-faq .field-table tbody.faq-group--bronze { --accent: var(--bronze); }

.page-faq .field-table .field-table__group th {
  padding: 12px;
  font-family: var(--font-display);
  font-size: 13px;
  letter-spacing: .06em;
  color: var(--text);
  background: rgba(11, 31, 28, .92);
  border-top: 1px solid var(--hair-strong);
  border-bottom: 1px solid var(--hair-strong);
}

.page-faq .field-table tbody tr:not(.field-table__group):hover {
  background: rgba(231, 240, 236, .045);
}

.page-faq .field-table tbody tr:not(.field-table__group):hover > *:first-child {
  box-shadow: inset 2px 0 0 var(--accent, var(--lime));
}

.page-faq .faq-figure {
  margin: 18px 0 0;
}

/* ---------- 问答 ---------- */
.page-faq .qa-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 20px;
}

.page-faq .qa-chip {
  padding: 6px 12px;
  font-family: var(--font-numeric);
  font-size: 12.5px;
  letter-spacing: .04em;
  color: var(--muted);
  text-decoration: none;
  border: 1px solid var(--hair);
  border-radius: 999px;
  background: rgba(18, 32, 51, .6);
  transition: color 150ms var(--ease), border-color 150ms var(--ease);
}

.page-faq .qa-chip:hover,
.page-faq .qa-chip:focus-visible {
  color: var(--accent, var(--lime));
  border-color: var(--accent, var(--lime));
}

.page-faq .qa-group {
  margin-bottom: 22px;
  padding-left: 14px;
  border-left: 2px solid var(--accent, var(--lime));
}

.page-faq .qa-group.faq-group--lime { --accent: var(--lime); }
.page-faq .qa-group.faq-group--teal { --accent: var(--teal); }
.page-faq .qa-group.faq-group--bronze { --accent: var(--bronze); }

.page-faq .qa-group__title {
  margin: 0 0 10px;
  font-family: var(--font-display);
  font-size: 15px;
  letter-spacing: .06em;
  color: var(--accent, var(--lime));
}

.page-faq .qa-item {
  border: 1px solid var(--hair);
  border-radius: var(--radius);
  background: rgba(18, 32, 51, .55);
  margin-bottom: 8px;
  transition: border-color 160ms var(--ease), background 160ms var(--ease);
}

.page-faq .qa-item:hover {
  border-color: var(--hair-strong);
}

.page-faq .qa-item[open] {
  border-color: var(--accent, var(--lime));
  background: rgba(18, 32, 51, .8);
}

.page-faq .qa-item__q {
  display: flex;
  align-items: baseline;
  gap: 10px;
  padding: 12px 14px;
  font-size: 15.5px;
  color: var(--text);
  cursor: pointer;
  list-style: none;
}

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

.page-faq .qa-item__q:focus-visible {
  outline: 2px solid var(--lime);
  outline-offset: 2px;
}

.page-faq .qa-item__num {
  font-family: var(--font-numeric);
  font-size: 12.5px;
  color: var(--accent, var(--lime));
  flex: none;
}

.page-faq .qa-item__q::after {
  content: "+";
  margin-left: auto;
  font-family: var(--font-numeric);
  color: var(--muted);
}

.page-faq .qa-item[open] .qa-item__q::after {
  content: "−";
  color: var(--accent, var(--lime));
}

.page-faq .qa-item__body {
  padding: 0 14px 14px 14px;
  border-top: 1px solid var(--hair);
}

.page-faq .qa-item__body p {
  margin: 12px 0 0;
  font-size: 15px;
  line-height: 1.75;
  color: var(--muted);
}

.page-faq .qa-item__foot {
  padding-top: 10px;
  font-family: var(--font-numeric);
  font-size: 12.5px;
  line-height: 1.6;
  color: var(--muted);
  border-top: 1px dashed var(--hair);
}

/* ---------- 纠错流程 ---------- */
.page-faq .faq-correction {
  display: grid;
  gap: 18px;
}

.page-faq .faq-correction__aside {
  padding: 18px;
  border-radius: var(--radius);
  border: 1px solid var(--hair);
  border-left: 2px solid var(--orange);
}

.page-faq .faq-correction__title {
  margin: 0 0 12px;
  font-family: var(--font-display);
  font-size: 16px;
  letter-spacing: .05em;
  color: var(--text);
}

.page-faq .faq-checklist {
  margin: 0 0 14px;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 8px;
}

.page-faq .faq-checklist li {
  position: relative;
  padding-left: 16px;
  font-size: 14.5px;
  line-height: 1.65;
  color: var(--muted);
}

.page-faq .faq-checklist li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 9px;
  width: 7px;
  height: 7px;
  background: var(--orange);
  opacity: .85;
}

.page-faq .faq-checklist a {
  color: var(--text);
  text-decoration: none;
  border-bottom: 1px solid var(--orange);
}

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

.page-faq .faq-correction__note {
  margin: 0 0 14px;
  padding: 10px 0 0;
  font-size: 13px;
  line-height: 1.7;
  color: var(--muted);
  border-top: 1px solid var(--hair);
}

/* ---------- 无障碍说明 ---------- */
.page-faq .faq-a11y {
  display: grid;
  gap: 0;
  margin: 0;
  border: 1px solid var(--hair);
  border-radius: var(--radius);
  background: rgba(18, 32, 51, .4);
  overflow: hidden;
}

.page-faq .faq-a11y__row {
  display: grid;
  gap: 6px;
  padding: 14px 16px;
  border-bottom: 1px solid var(--hair);
}

.page-faq .faq-a11y__row:last-child {
  border-bottom: 0;
}

.page-faq .faq-a11y__row:hover {
  background: rgba(231, 240, 236, .04);
}

.page-faq .faq-a11y dt {
  font-family: var(--font-numeric);
  font-size: 13px;
  letter-spacing: .06em;
  color: var(--lime);
}

.page-faq .faq-a11y dd {
  margin: 0;
  font-size: 15px;
  line-height: 1.72;
  color: var(--muted);
}

/* ---------- 响应式 ---------- */
@media (min-width: 48em) {
  .page-faq .faq-cards {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-faq .faq-hero__facts {
    gap: 14px 40px;
  }

  .page-faq .faq-correction {
    grid-template-columns: minmax(0, 1.4fr) minmax(0, 1fr);
    align-items: start;
  }

  .page-faq .faq-a11y__row {
    grid-template-columns: 160px minmax(0, 1fr);
    align-items: baseline;
    gap: 16px;
  }

  .page-faq .field-table-wrap {
    max-height: 72vh;
    overflow: auto;
  }

  .page-faq .field-table thead th {
    position: sticky;
    top: 0;
    z-index: 2;
  }
}

@media (min-width: 60em) {
  .page-faq .faq-hero {
    padding: 10px 0 56px;
  }

  .page-faq .faq-hero__inner {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, .95fr);
    align-items: center;
    gap: 48px;
  }

  .page-faq .faq-layout {
    grid-template-columns: var(--faq-rail) minmax(0, 1fr);
    gap: var(--faq-gap);
    padding: 44px 0 88px;
  }

  .page-faq .faq-toc {
    position: sticky;
    top: calc(var(--header-h) + 12px);
  }

  .page-faq .index-rail__list {
    flex-direction: column;
    gap: 4px;
  }

  .page-faq .faq-toc__link {
    display: block;
    width: 100%;
    border-bottom: 0;
    border-left: 2px solid transparent;
    padding: 5px 0 5px 10px;
  }

  .page-faq .faq-toc__link--sub {
    padding-left: 22px;
  }

  .page-faq .faq-toc__link:hover,
  .page-faq .faq-toc__link:focus-visible {
    border-bottom-color: transparent;
    border-left-color: var(--lime);
    background: rgba(201, 255, 77, .07);
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq * {
    transition-duration: 1ms !important;
    animation-duration: 1ms !important;
  }
}