.page-faq {
  --faq-rail: 200px;
  --faq-narrow: 24ch;
  padding-bottom: 0;
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  border-bottom: var(--line);
  padding: 28px 0 34px;
  background-image:
    repeating-linear-gradient(90deg, var(--c-grid) 0 1px, transparent 1px 78px),
    linear-gradient(180deg, var(--c-pitch-900) 0%, var(--c-pitch-abyss) 100%);
}

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

.page-faq .faq-hero__crumbs {
  margin: 0 0 20px;
  font-size: var(--fs-13);
  color: var(--c-text-muted);
}

.page-faq .faq-hero__crumbs a {
  color: var(--c-text-muted);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color var(--t-fast) var(--ease), border-color var(--t-fast) var(--ease);
}

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

.page-faq .faq-kicker {
  margin: 0 0 14px;
  font-size: var(--fs-12);
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--c-accent-lime);
}

.page-faq .faq-hero__title {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(30px, 7.2vw, 56px);
  line-height: 1.02;
  letter-spacing: 0.01em;
  color: var(--c-text);
  max-width: 20ch;
}

.page-faq .faq-hero__lead {
  margin: 20px 0 0;
  max-width: 42ch;
  font-size: var(--fs-16);
  line-height: 1.85;
  color: var(--c-text-muted);
}

.page-faq .faq-hero__note {
  margin: 0;
  font-family: var(--font-mono);
  font-size: var(--fs-12);
  letter-spacing: 0.06em;
  line-height: 1.6;
  color: var(--c-accent-lime);
  border-left: 2px solid var(--c-accent-lime);
  padding-left: 12px;
}

@media (min-width: 960px) {
  .page-faq .faq-hero {
    padding: 40px 0 48px;
  }
  .page-faq .faq-hero__grid {
    grid-template-columns: minmax(0, 1fr) 44px;
    align-items: stretch;
    gap: 40px;
  }
  .page-faq .faq-hero__note {
    writing-mode: vertical-rl;
    border-left: 0;
    border-right: 2px solid var(--c-accent-lime);
    padding: 0 12px 0 0;
    justify-self: end;
    align-self: center;
  }
}

/* ---------- 场景分组 ---------- */
.page-faq .faq-scenes {
  padding: 40px 0 44px;
  border-bottom: var(--line);
  background: var(--c-pitch-900);
}

.page-faq .faq-scenes__grid {
  display: grid;
  gap: 32px;
}

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

.page-faq .faq-scenes__cards {
  display: grid;
  gap: 12px;
  margin-top: 22px;
}

.page-faq .faq-scene {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  align-items: center;
  gap: 14px;
  padding: 16px 16px 16px 14px;
  border: var(--line);
  background: var(--c-panel);
  box-shadow: var(--shadow-card);
  text-decoration: none;
  transition: border-color var(--t-fast) var(--ease), background var(--t-fast) var(--ease), transform var(--t-fast) var(--ease);
}

.page-faq .faq-scene:hover,
.page-faq .faq-scene:focus-visible {
  border-color: var(--c-accent-lime);
  background: var(--c-pitch-900);
}

.page-faq .faq-scene__no {
  font-size: var(--fs-20);
  color: var(--c-accent-lime);
  width: 1.6em;
  text-align: center;
}

.page-faq .faq-scene__body {
  display: grid;
  gap: 4px;
  min-width: 0;
}

.page-faq .faq-scene__title {
  font-family: var(--font-display);
  font-size: var(--fs-20);
  line-height: 1.15;
  color: var(--c-text);
}

.page-faq .faq-scene__desc {
  font-size: var(--fs-13);
  line-height: 1.6;
  color: var(--c-text-muted);
}

.page-faq .faq-scene__count {
  font-size: var(--fs-12);
  letter-spacing: 0.08em;
  color: var(--c-text-muted);
  white-space: nowrap;
}

@media (min-width: 980px) {
  .page-faq .faq-scenes__grid {
    grid-template-columns: minmax(0, 1.4fr) minmax(0, 1fr);
    align-items: start;
    gap: 44px;
  }
  .page-faq .faq-scene {
    padding: 20px 20px 20px 16px;
  }
}

/* ---------- 主体两栏 ---------- */
.page-faq .faq-body {
  display: grid;
  gap: 36px;
  padding-top: 8px;
}

.page-faq .faq-index {
  order: -1;
  border: var(--line);
  background: var(--c-panel);
  padding: 16px 14px 18px;
}

.page-faq .faq-index__label {
  margin: 0 0 12px;
  font-size: var(--fs-12);
  letter-spacing: 0.22em;
  color: var(--c-accent-lime);
}

.page-faq .faq-index__group {
  margin: 14px 0 6px;
  padding-left: 10px;
  border-left: 2px solid var(--c-grid);
  font-size: var(--fs-13);
}

.page-faq .faq-index__group:first-of-type {
  margin-top: 0;
}

.page-faq .faq-index__group a {
  color: var(--c-text);
  text-decoration: none;
  letter-spacing: 0.04em;
}

.page-faq .faq-index__list {
  list-style: none;
  margin: 0;
  padding: 0;
  border-left: var(--line);
}

.page-faq .faq-index__list li {
  margin: 0;
}

.page-faq .faq-index__list a {
  display: block;
  padding: 6px 10px;
  margin-left: -1px;
  border-left: 2px solid transparent;
  font-size: var(--fs-12);
  line-height: 1.5;
  color: var(--c-text-muted);
  text-decoration: none;
  transition: color var(--t-fast) var(--ease), border-color var(--t-fast) var(--ease), background var(--t-fast) var(--ease);
}

.page-faq .faq-index__list a:hover,
.page-faq .faq-index__list a:focus-visible {
  color: var(--c-accent-lime);
  border-left-color: var(--c-accent-lime);
  background: var(--c-pitch-900);
}

@media (min-width: 1100px) {
  .page-faq .faq-body {
    grid-template-columns: minmax(0, 1fr) var(--faq-rail);
    gap: 52px;
    align-items: start;
    padding-top: 0;
  }
  .page-faq .faq-index {
    order: 0;
    position: sticky;
    top: calc(var(--header-h) + 24px);
    max-height: calc(100vh - var(--header-h) - 48px);
    overflow-y: auto;
  }
}

/* ---------- 问答区 ---------- */
.page-faq .faq-block {
  padding: 40px 0 12px;
  scroll-margin-top: calc(var(--header-h) + 16px);
}

.page-faq .faq-block__lead {
  margin: 18px 0 22px;
  max-width: 46ch;
  font-size: var(--fs-16);
  line-height: 1.85;
  color: var(--c-text-muted);
  border-left: 3px solid var(--c-injury-orange);
  padding-left: 14px;
}

.page-faq .faq-shot {
  margin: 22px 0 26px;
}

.page-faq .faq-acc {
  border-top: var(--line);
}

.page-faq .faq-acc .accordion__item {
  border-bottom: var(--line);
}

.page-faq .faq-acc .accordion__trigger {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 12px;
  align-items: start;
  width: 100%;
  padding: 18px 8px 18px 0;
  border: 0;
  background: none;
  text-align: left;
  cursor: pointer;
  font-family: var(--font-display);
  font-size: var(--fs-20);
  line-height: 1.3;
  color: var(--c-text);
  transition: color var(--t-fast) var(--ease);
}

.page-faq .faq-acc .accordion__trigger:hover,
.page-faq .faq-acc .accordion__trigger:focus-visible {
  color: var(--c-accent-lime);
}

.page-faq .faq-q__num {
  font-size: var(--fs-12);
  letter-spacing: 0.1em;
  color: var(--c-text-muted);
  padding-top: 0.5em;
}

.page-faq .faq-acc .accordion__trigger[aria-expanded="true"] + .accordion__panel {
  border-top: var(--line);
}

.page-faq .faq-acc .accordion__panel {
  padding: 16px 8px 22px 0;
}

.page-faq .faq-acc .accordion__panel p {
  margin: 0 0 12px;
  font-size: var(--fs-16);
  line-height: 1.85;
  color: var(--c-text);
}

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

.page-faq .faq-acc .accordion__panel a {
  color: var(--c-accent-lime);
  text-decoration: none;
  border-bottom: 1px solid var(--c-grid);
  transition: border-color var(--t-fast) var(--ease);
}

.page-faq .faq-acc .accordion__panel a:hover,
.page-faq .faq-acc .accordion__panel a:focus-visible {
  border-bottom-color: var(--c-accent-lime);
}

.page-faq .faq-acc .accordion__panel .mono {
  color: var(--c-text);
  word-break: break-all;
}

@media (min-width: 860px) {
  .page-faq .faq-acc .accordion__item {
    display: grid;
    grid-template-columns: var(--faq-narrow) minmax(0, 1fr);
    column-gap: 32px;
  }
  .page-faq .faq-acc .accordion__trigger {
    padding: 22px 0 22px;
  }
  .page-faq .faq-acc .accordion__panel {
    padding: 20px 0 26px;
  }
  .page-faq .faq-acc .accordion__panel > p {
    max-width: 46ch;
  }
}

/* ---------- 术语释义 ---------- */
.page-faq .term {
  position: relative;
  border-bottom: 1px dashed var(--c-accent-lime);
  cursor: help;
}

.page-faq .term::after {
  content: attr(data-tip);
  position: absolute;
  left: 0;
  bottom: calc(100% + 10px);
  z-index: 4;
  width: min(280px, 72vw);
  padding: 10px 12px;
  background: var(--c-pitch-abyss);
  border: 1px solid var(--c-accent-lime);
  color: var(--c-text);
  font-family: var(--font-body);
  font-size: var(--fs-13);
  line-height: 1.7;
  letter-spacing: 0;
  opacity: 0;
  visibility: hidden;
  transition: opacity var(--t-fast) var(--ease), visibility var(--t-fast) var(--ease);
}

.page-faq .term:hover::after,
.page-faq .term:focus-visible::after {
  opacity: 1;
  visibility: visible;
}

/* ---------- 全宽分隔带 ---------- */
.page-faq .faq-band {
  margin: 34px 0 0;
  border-top: 1px solid var(--c-grid);
  border-bottom: 1px solid var(--c-grid);
  background: var(--c-panel);
}

.page-faq .faq-band__text {
  margin: 0;
  padding: 20px 0;
  font-family: var(--font-display);
  font-size: var(--fs-20);
  line-height: 1.5;
  color: var(--c-text);
  border-left: 4px solid var(--c-accent-lime);
  padding-left: 18px;
}

/* ---------- 小表格 ---------- */
.page-faq .faq-a__table-wrap {
  margin: 18px 0 0;
  overflow-x: auto;
}

.page-faq .faq-mini-table {
  width: 100%;
  min-width: 420px;
  border-collapse: collapse;
  font-size: var(--fs-14);
}

.page-faq .faq-mini-table__caption {
  caption-side: top;
  text-align: left;
  padding: 0 0 10px;
  font-family: var(--font-mono);
  font-size: var(--fs-12);
  letter-spacing: 0.08em;
  color: var(--c-text-muted);
}

.page-faq .faq-mini-table th {
  padding: 8px 10px;
  border-bottom: 1px solid var(--c-grid);
  font-family: var(--font-mono);
  font-size: var(--fs-12);
  font-weight: 400;
  letter-spacing: 0.08em;
  text-align: left;
  color: var(--c-text-muted);
}

.page-faq .faq-mini-table td {
  padding: 10px;
  border-bottom: 1px solid var(--c-grid);
  color: var(--c-text);
}

.page-faq .faq-mini-table tbody tr:hover {
  background: var(--c-panel);
}

.page-faq .faq-mini-table td.num {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  color: var(--c-accent-lime);
}