.page-faq {
  --faq-rail: 232px;
  --faq-hair-dark: rgba(244, 241, 232, 0.16);
  --faq-hair-paper: #D9D3C2;
  --faq-ink-soft: #2A3D33;
  --faq-note-ink: #6B7F76;
  display: block;
  background: var(--night);
  color: var(--paper);
  overflow-x: hidden;
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  padding: 26px 0 52px;
  background:
    radial-gradient(120% 140% at 88% -10%, rgba(30, 92, 65, 0.85) 0%, rgba(10, 28, 46, 0) 58%),
    linear-gradient(180deg, var(--night) 0%, #0C2136 62%, #0F2E36 100%);
}

.page-faq .faq-hero__grid {
  display: grid;
  gap: 30px;
  margin-top: 24px;
}

.page-faq .faq-eyebrow {
  display: flex;
  align-items: center;
  gap: 10px;
  margin: 0;
  font-size: 12.5px;
  letter-spacing: 0.14em;
  color: var(--mist);
}

.page-faq .faq-eyebrow__bar {
  display: inline-block;
  width: 22px;
  height: 2px;
  background: var(--lime);
}

.page-faq .faq-hero h1 {
  margin: 16px 0 0;
  font-family: var(--font-head);
  font-size: clamp(46px, 13vw, 96px);
  font-weight: 500;
  line-height: 0.96;
  letter-spacing: -0.035em;
  color: var(--paper);
}

.page-faq .faq-hero__sub {
  max-width: 30ch;
  margin: 18px 0 0;
  font-size: 17px;
  line-height: 1.78;
  color: var(--mist);
}

.page-faq .faq-hero__aside {
  border-top: 1px solid var(--faq-hair-dark);
  padding-top: 20px;
}

.page-faq .faq-hero__aside p {
  margin: 0;
  font-size: 15.5px;
  line-height: 1.85;
  color: var(--mist);
}

.page-faq .faq-glance {
  display: flex;
  gap: 34px;
  margin: 24px 0 0;
  padding-top: 20px;
  border-top: 1px solid var(--faq-hair-dark);
}

.page-faq .faq-glance > div {
  display: grid;
  gap: 6px;
}

.page-faq .faq-glance dt {
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--mist);
}

.page-faq .faq-glance dd {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 32px;
  line-height: 1;
  letter-spacing: -0.02em;
  color: var(--lime);
}

/* ---------- 正文分区 ---------- */
.page-faq .faq-body {
  background: var(--grass);
  padding-bottom: 68px;
}

.page-faq .faq-layout {
  display: grid;
  gap: 0;
}

/* ---------- 问题索引 ---------- */
.page-faq .faq-rail {
  padding: 24px 0 6px;
  border-bottom: 1px solid var(--faq-hair-dark);
}

.page-faq .faq-rail__title {
  margin: 0 0 12px;
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--mist);
}

.page-faq .faq-rail__list {
  display: flex;
  gap: 8px;
  margin: 0;
  padding: 0 0 6px;
  list-style: none;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: thin;
}

.page-faq .faq-rail__list a {
  display: flex;
  align-items: baseline;
  gap: 8px;
  padding: 9px 15px;
  border: 1px solid var(--faq-hair-dark);
  border-radius: 999px;
  color: var(--paper);
  font-size: 13px;
  line-height: 1.4;
  white-space: nowrap;
  text-decoration: none;
  transition: border-color 0.22s ease, color 0.22s ease;
}

.page-faq .faq-rail__list a .mono {
  font-size: 11.5px;
  color: var(--mist);
}

.page-faq .faq-rail__list a:hover {
  border-color: rgba(200, 255, 77, 0.55);
}

.page-faq .faq-rail__list a[aria-current="true"] {
  border-color: var(--lime);
  color: var(--lime);
}

.page-faq .faq-rail__list a[aria-current="true"] .mono {
  color: var(--lime);
}

/* ---------- 答案区 ---------- */
.page-faq .faq-content {
  padding: 40px 0 0;
}

.page-faq .faq-group {
  scroll-margin-top: 92px;
}

.page-faq .faq-group + .faq-group {
  margin-top: 46px;
  padding-top: 46px;
  border-top: 1px solid var(--faq-hair-dark);
}

.page-faq .faq-group__head {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 6px 14px;
  align-items: baseline;
  margin-bottom: 20px;
}

.page-faq .faq-group__num {
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--lime);
}

.page-faq .faq-group__head h2 {
  margin: 0;
  font-family: var(--font-head);
  font-size: clamp(25px, 6vw, 36px);
  font-weight: 500;
  line-height: 1.12;
  letter-spacing: -0.025em;
  color: var(--paper);
}

.page-faq .faq-group__note {
  grid-column: 2;
  margin: 0;
  font-size: 13px;
  line-height: 1.6;
  letter-spacing: 0.03em;
  color: var(--mist);
}

/* ---------- 答案面板 ---------- */
.page-faq .faq-panel {
  background: var(--paper);
  color: var(--paper-ink);
  border-radius: var(--radius);
  box-shadow: var(--shadow-soft);
  overflow: hidden;
}

.page-faq .faq-item + .faq-item {
  border-top: 1px solid var(--faq-hair-paper);
}

.page-faq .faq-item__q {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  padding: 17px 18px;
  font-size: 16px;
  font-weight: 500;
  line-height: 1.62;
  color: var(--paper-ink);
  cursor: pointer;
  list-style: none;
}

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

.page-faq .faq-item__q::marker {
  content: "";
}

.page-faq .faq-item__mark {
  position: relative;
  flex: 0 0 auto;
  width: 14px;
  height: 12px;
  margin-top: 5px;
}

.page-faq .faq-item__mark::before,
.page-faq .faq-item__mark::after {
  content: "";
  position: absolute;
  background: var(--midline);
  transition: transform 0.22s ease, opacity 0.22s ease;
}

.page-faq .faq-item__mark::before {
  left: 0;
  top: 5px;
  width: 14px;
  height: 1.5px;
}

.page-faq .faq-item__mark::after {
  left: 6.25px;
  top: 0;
  width: 1.5px;
  height: 12px;
}

.page-faq .faq-item[open] .faq-item__mark::after {
  transform: scaleY(0);
  opacity: 0;
}

.page-faq .faq-item__a {
  padding: 0 18px 20px 46px;
  border-top: 1px solid var(--faq-hair-paper);
  margin-top: -1px;
  padding-top: 14px;
  font-size: 15.5px;
  line-height: 1.82;
  color: var(--faq-ink-soft);
}

.page-faq .faq-item__a p {
  margin: 0 0 10px;
}

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

.page-faq .faq-item__a .faq-note {
  font-size: 13px;
  line-height: 1.75;
  color: var(--faq-note-ink);
}

/* ---------- 图 ---------- */
.page-faq .faq-figure {
  margin: 22px 0 0;
  border: 1px solid var(--faq-hair-dark);
  border-radius: var(--radius);
  background: var(--night);
  overflow: hidden;
}

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

.page-faq .faq-figure figcaption {
  padding: 12px 16px;
  border-top: 1px solid var(--faq-hair-dark);
  font-size: 13px;
  line-height: 1.72;
  color: var(--mist);
}

/* ---------- 口径表 ---------- */
.page-faq .faq-table {
  width: 100%;
  margin-top: 22px;
  border-collapse: collapse;
  background: rgba(244, 241, 232, 0.97);
  color: var(--paper-ink);
  font-size: 14.5px;
}

.page-faq .faq-table caption {
  padding: 0 0 10px;
  text-align: left;
  font-size: 12.5px;
  letter-spacing: 0.12em;
  color: var(--mist);
}

.page-faq .faq-table thead th {
  padding: 11px 14px;
  text-align: left;
  background: var(--midline);
  color: var(--paper);
  font-size: 12.5px;
  font-weight: 500;
  letter-spacing: 0.08em;
}

.page-faq .faq-table tbody th,
.page-faq .faq-table tbody td {
  padding: 12px 14px;
  text-align: left;
  vertical-align: top;
  line-height: 1.7;
  border-bottom: 1px solid var(--faq-hair-paper);
}

.page-faq .faq-table tbody th {
  width: 34%;
  font-weight: 500;
  color: var(--paper-ink);
}

.page-faq .faq-table tbody td {
  color: var(--faq-ink-soft);
}

.page-faq .faq-table tbody tr:last-child th,
.page-faq .faq-table tbody tr:last-child td {
  border-bottom: 0;
}

/* ---------- 变更说明四字段 ---------- */
.page-faq .faq-fields {
  display: grid;
  gap: 1px;
  margin: 22px 0 0;
  padding: 0;
  list-style: none;
  background: var(--faq-hair-dark);
  border-radius: var(--radius);
  overflow: hidden;
}

.page-faq .faq-fields li {
  display: grid;
  gap: 4px;
  padding: 14px 16px;
  background: var(--paper);
  color: var(--paper-ink);
}

.page-faq .faq-fields__k {
  font-size: 12.5px;
  letter-spacing: 0.1em;
  color: var(--midline);
}

.page-faq .faq-fields__v {
  font-size: 14.5px;
  line-height: 1.7;
  color: var(--faq-ink-soft);
}

/* ---------- 收束 ---------- */
.page-faq .faq-outro {
  background: var(--night);
  padding: 56px 0 64px;
}

.page-faq .faq-outro h2 {
  margin: 0;
  font-family: var(--font-head);
  font-size: clamp(24px, 6vw, 34px);
  font-weight: 500;
  line-height: 1.16;
  letter-spacing: -0.025em;
  color: var(--paper);
}

.page-faq .faq-outro__lead {
  max-width: 48ch;
  margin: 14px 0 0;
  font-size: 15.5px;
  line-height: 1.8;
  color: var(--mist);
}

.page-faq .faq-links {
  display: grid;
  gap: 1px;
  margin-top: 32px;
  background: var(--faq-hair-dark);
}

.page-faq .faq-links a {
  display: grid;
  gap: 5px;
  padding: 16px 18px 16px 22px;
  position: relative;
  background: var(--night);
  text-decoration: none;
  transition: background 0.22s ease;
}

.page-faq .faq-links a::before {
  content: "";
  position: absolute;
  left: 0;
  top: 50%;
  width: 10px;
  height: 2px;
  background: var(--lime);
  transform: translateY(-50%);
  transition: width 0.22s ease;
}

.page-faq .faq-links a:hover {
  background: #0F2537;
}

.page-faq .faq-links a:hover::before {
  width: 18px;
}

.page-faq .faq-links__t {
  font-size: 16px;
  font-weight: 500;
  color: var(--paper);
}

.page-faq .faq-links__d {
  font-size: 13.5px;
  line-height: 1.65;
  color: var(--mist);
}

/* ---------- 桌面布局 ---------- */
@media (min-width: 760px) {
  .page-faq .faq-hero {
    padding: 34px 0 66px;
  }

  .page-faq .faq-hero__grid {
    grid-template-columns: minmax(0, 1.32fr) minmax(0, 1fr);
    gap: 52px;
    align-items: end;
    margin-top: 34px;
  }

  .page-faq .faq-hero__aside {
    border-top: 0;
    padding-top: 0;
    padding-bottom: 6px;
  }

  .page-faq .faq-fields li {
    grid-template-columns: 118px minmax(0, 1fr);
    align-items: baseline;
    gap: 4px 18px;
  }

  .page-faq .faq-links {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-faq .faq-links a:last-child {
    grid-column: 1 / -1;
  }
}

@media (min-width: 960px) {
  .page-faq .faq-layout {
    grid-template-columns: var(--faq-rail) minmax(0, 1fr);
    align-items: start;
  }

  .page-faq .faq-rail {
    position: sticky;
    top: 92px;
    padding: 52px 30px 40px 0;
    border-bottom: 0;
    border-right: 1px solid var(--faq-hair-dark);
  }

  .page-faq .faq-rail__list {
    display: block;
    overflow: visible;
    padding: 0;
    scrollbar-width: none;
  }

  .page-faq .faq-rail__list li + li {
    border-top: 1px solid var(--faq-hair-dark);
  }

  .page-faq .faq-rail__list a {
    position: relative;
    display: flex;
    padding: 13px 0 13px 18px;
    border: 0;
    border-radius: 0;
    font-size: 13.5px;
    white-space: normal;
    line-height: 1.5;
  }

  .page-faq .faq-rail__list a::before {
    content: "";
    position: absolute;
    left: 0;
    top: 20px;
    width: 9px;
    height: 1px;
    background: var(--mist);
    transition: width 0.22s ease, background 0.22s ease, height 0.22s ease;
  }

  .page-faq .faq-rail__list a:hover {
    border-color: transparent;
    color: var(--paper);
  }

  .page-faq .faq-rail__list a[aria-current="true"] {
    border-color: transparent;
  }

  .page-faq .faq-rail__list a[aria-current="true"]::before {
    width: 17px;
    height: 2px;
    background: var(--lime);
  }

  .page-faq .faq-content {
    padding: 52px 0 0 46px;
  }

  .page-faq .faq-links {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-faq .faq-links a:last-child {
    grid-column: auto;
  }
}

@media (min-width: 1120px) {
  .page-faq .faq-content {
    padding-left: 64px;
  }

  .page-faq .faq-item__q {
    padding: 20px 24px;
    font-size: 16.5px;
  }

  .page-faq .faq-item__a {
    padding: 16px 24px 22px 52px;
    font-size: 16px;
  }
}

/* ---------- 窄屏表格纵向堆叠 ---------- */
@media (max-width: 560px) {
  .page-faq .faq-table,
  .page-faq .faq-table tbody,
  .page-faq .faq-table tr,
  .page-faq .faq-table th,
  .page-faq .faq-table td {
    display: block;
    width: 100%;
  }

  .page-faq .faq-table thead {
    display: none;
  }

  .page-faq .faq-table tr {
    padding: 12px 14px;
    border-bottom: 1px solid var(--faq-hair-paper);
  }

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

  .page-faq .faq-table tbody th,
  .page-faq .faq-table tbody td {
    padding: 0;
    border-bottom: 0;
  }

  .page-faq .faq-table tbody th {
    margin-bottom: 3px;
    font-size: 12.5px;
    letter-spacing: 0.08em;
    color: var(--midline);
  }

  .page-faq .faq-item__a {
    padding-left: 18px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-rail__list a,
  .page-faq .faq-item__mark::before,
  .page-faq .faq-item__mark::after,
  .page-faq .faq-links a,
  .page-faq .faq-links a::before {
    transition: none;
  }
}
</final>