.page-faq {
  --faq-edge: clamp(16px, 4vw, 40px);
  --faq-gap: clamp(22px, 4vw, 48px);
  background: var(--paper);
  color: var(--stone);
  font-family: var(--font-mono);
  font-size: 15px;
  line-height: 1.9;
  padding-bottom: clamp(40px, 8vw, 96px);
}

.page-faq a {
  color: var(--ink);
  text-decoration: underline;
  text-decoration-color: var(--copper);
  text-underline-offset: 3px;
}

.page-faq a:hover {
  text-decoration-color: var(--ink);
}

/* ---------- 面包屑 ---------- */
.page-faq .crumbs {
  padding: 16px 0 6px;
  font-size: 12px;
  letter-spacing: .04em;
  color: var(--stone);
}

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

.page-faq .crumbs__item + .crumbs__item::before {
  content: "/";
  margin-right: 6px;
  color: var(--copper);
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  padding: 18px 0 clamp(24px, 5vw, 46px);
  border-bottom: 1px solid var(--line);
}

.page-faq .faq-hero__grid {
  display: grid;
  gap: var(--faq-gap);
}

.page-faq .faq-hero h1 {
  margin: 14px 0 18px;
  font-family: var(--font-head);
  font-weight: 900;
  font-size: clamp(30px, 8.4vw, 74px);
  line-height: 1.06;
  letter-spacing: -.02em;
  color: var(--black);
}

.page-faq .lede {
  max-width: 62ch;
  margin: 0;
  font-size: 15.5px;
  line-height: 1.95;
  color: var(--stone);
}

.page-faq .faq-hero__data {
  display: grid;
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
  align-self: start;
}

.page-faq .datum {
  display: grid;
  gap: 2px;
  padding: 14px 16px;
  background: var(--paper-2);
}

.page-faq .datum__key {
  font-size: 11px;
  letter-spacing: .12em;
  color: var(--copper);
  text-transform: uppercase;
}

.page-faq .datum__val {
  font-family: var(--font-head);
  font-weight: 900;
  font-size: clamp(30px, 7vw, 44px);
  line-height: 1;
  color: var(--black);
  font-variant-numeric: tabular-nums;
}

.page-faq .datum__val i {
  font-style: normal;
  font-size: .5em;
  margin-left: 2px;
  color: var(--copper);
}

.page-faq .datum__val--copper {
  color: var(--copper);
}

.page-faq .datum__unit {
  font-size: 12px;
  line-height: 1.6;
  color: var(--steel);
}

/* ---------- 分组快速跳转 ---------- */
.page-faq .faq-jump {
  display: flex;
  gap: 8px;
  margin-top: clamp(20px, 4vw, 34px);
  padding-bottom: 6px;
  overflow-x: auto;
  scrollbar-width: none;
  -webkit-overflow-scrolling: touch;
}

.page-faq .faq-jump::-webkit-scrollbar {
  display: none;
}

.page-faq .faq-jump__link {
  flex: none;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 14px;
  border: 1px solid var(--line-strong);
  background: var(--paper-2);
  font-size: 13px;
  color: var(--ink);
  text-decoration: none;
  white-space: nowrap;
}

.page-faq .faq-jump__link:hover {
  border-color: var(--copper);
  background: var(--paper);
}

.page-faq .faq-jump__idx {
  font-size: 10.5px;
  letter-spacing: .1em;
  color: var(--copper);
  font-variant-numeric: tabular-nums;
}

/* ---------- 右侧进度刻度 ---------- */
.page-faq .faq-gauge {
  display: none;
}

/* ---------- 分组 ---------- */
.page-faq .faq-body {
  position: relative;
  padding-top: clamp(28px, 6vw, 64px);
}

.page-faq .faq-group {
  position: relative;
  padding-bottom: clamp(34px, 6vw, 66px);
  margin-bottom: clamp(34px, 6vw, 66px);
  border-bottom: 1px solid var(--line);
}

.page-faq .faq-group:last-of-type {
  margin-bottom: 0;
}

.page-faq .faq-group__head {
  display: grid;
  gap: 16px;
  margin-bottom: 22px;
}

.page-faq .faq-group__title {
  margin: 0 0 10px;
  font-family: var(--font-head);
  font-weight: 900;
  font-size: clamp(22px, 5vw, 38px);
  line-height: 1.22;
  letter-spacing: -.015em;
  color: var(--ink);
}

.page-faq .faq-group__intro {
  margin: 0;
  max-width: 60ch;
  font-size: 14.5px;
  line-height: 1.9;
  color: var(--stone);
}

.page-faq .vnote {
  margin: 0;
  font-size: 11px;
  letter-spacing: .16em;
  color: var(--copper);
  font-variant-numeric: tabular-nums;
}

.page-faq .faq-group__fig {
  margin: 0;
  overflow: hidden;
  border: 1px solid var(--line);
  background: var(--paper-2);
}

.page-faq .faq-group__fig img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 5 / 4;
  object-fit: cover;
}

/* ---------- 夜间条带 ---------- */
.page-faq .faq-night-strip {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 10px 20px;
  margin-bottom: 24px;
  padding: 16px 18px;
  background: linear-gradient(100deg, var(--night-a), var(--night-b));
  color: var(--paper);
  border-left: 3px solid var(--copper);
}

.page-faq .faq-night-strip__k {
  font-size: 11px;
  letter-spacing: .16em;
  color: var(--copper);
}

.page-faq .faq-night-strip__v {
  font-family: var(--font-head);
  font-weight: 900;
  font-size: clamp(20px, 4.6vw, 30px);
  line-height: 1;
  font-variant-numeric: tabular-nums;
}

.page-faq .faq-night-strip__c {
  font-size: 12.5px;
  color: rgba(244, 239, 230, .78);
}

/* ---------- 问答面板 ---------- */
.page-faq .qa {
  display: flex;
  flex-direction: column;
  border-top: 1px solid var(--line-strong);
}

.page-faq .qa__item {
  border-bottom: 1px solid var(--line);
  background: transparent;
}

.page-faq .qa__q {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  padding: 17px 4px 17px 0;
  cursor: pointer;
  list-style: none;
  font-family: var(--font-head);
  font-weight: 700;
  font-size: 16px;
  line-height: 1.55;
  color: var(--ink);
}

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

.page-faq .qa__q:hover .faq-q-text {
  color: var(--clay);
}

.page-faq .faq-q-text {
  flex: 1 1 auto;
  transition: color .16s ease;
}

.page-faq .qa__mark {
  position: relative;
  flex: none;
  width: 22px;
  height: 22px;
  margin-top: 2px;
  border: 1px solid var(--copper);
}

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

.page-faq .qa__mark::before {
  top: 50%;
  left: 4px;
  right: 4px;
  height: 1px;
  transform: translateY(-50%);
}

.page-faq .qa__mark::after {
  top: 4px;
  bottom: 4px;
  left: 50%;
  width: 1px;
  transform: translateX(-50%);
  transition: transform .18s ease, opacity .18s ease;
}

.page-faq .qa__item[open] .qa__mark {
  background: var(--ink);
  border-color: var(--ink);
}

.page-faq .qa__item[open] .qa__mark::before,
.page-faq .qa__item[open] .qa__mark::after {
  background: var(--paper);
}

.page-faq .qa__item[open] .qa__mark::after {
  transform: translateX(-50%) scaleY(0);
  opacity: 0;
}

.page-faq .qa__a {
  padding: 0 4px 22px 0;
  font-size: 14.5px;
  line-height: 1.95;
  color: var(--stone);
}

.page-faq .qa__a p {
  margin: 0 0 11px;
}

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

.page-faq .qa__a strong {
  color: var(--ink);
  font-weight: 700;
}

@media (prefers-reduced-motion: no-preference) {
  .page-faq .qa__item[open] .qa__a {
    animation: faqPanelIn .18s ease both;
  }
}

@keyframes faqPanelIn {
  from { opacity: 0; transform: translateY(-4px); }
  to { opacity: 1; transform: none; }
}

/* ---------- 回答内的小表格 ---------- */
.page-faq .faq-scroll {
  margin: 12px 0 14px;
  overflow-x: auto;
}

.page-faq .faq-mini {
  width: 100%;
  min-width: 420px;
  border-collapse: collapse;
  font-size: 13px;
  line-height: 1.7;
  background: var(--paper-2);
}

.page-faq .faq-mini caption {
  padding-bottom: 8px;
  text-align: left;
  font-size: 11px;
  letter-spacing: .1em;
  color: var(--copper);
}

.page-faq .faq-mini th {
  padding: 9px 11px;
  background: var(--ink);
  color: var(--paper);
  font-weight: 600;
  text-align: left;
  font-size: 12.5px;
  letter-spacing: .04em;
}

.page-faq .faq-mini td {
  padding: 9px 11px;
  border-bottom: 1px solid var(--line);
  vertical-align: top;
  color: var(--stone);
  font-variant-numeric: tabular-nums;
}

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

.page-faq .faq-mini tbody tr:hover {
  box-shadow: inset 3px 0 0 var(--copper);
}

/* ---------- 收尾 ---------- */
.page-faq .faq-cta {
  margin-top: clamp(36px, 7vw, 80px);
  padding: clamp(28px, 5vw, 52px) 0;
  background: var(--ink);
  color: var(--paper);
}

.page-faq .faq-cta__inner {
  display: grid;
  gap: 24px;
}

.page-faq .faq-cta__title {
  margin: 0 0 10px;
  font-family: var(--font-head);
  font-weight: 900;
  font-size: clamp(22px, 5vw, 36px);
  line-height: 1.24;
  color: var(--paper);
}

.page-faq .faq-cta__note {
  margin: 0;
  max-width: 56ch;
  font-size: 14.5px;
  line-height: 1.9;
  color: rgba(244, 239, 230, .82);
}

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

.page-faq .faq-cta .btn {
  font-family: var(--font-mono);
  font-size: 14px;
}

/* ---------- 平板及以上 ---------- */
@media (min-width: 760px) {
  .page-faq .faq-hero__grid {
    grid-template-columns: minmax(0, 1.65fr) minmax(240px, .85fr);
    align-items: start;
  }

  .page-faq .faq-hero__data {
    margin-top: 8px;
    background: transparent;
    border: none;
    gap: 0;
    border-left: 1px solid var(--line-strong);
  }

  .page-faq .datum {
    background: transparent;
    border-bottom: 1px solid var(--line);
    padding: 12px 0 12px 20px;
  }

  .page-faq .datum:first-child {
    padding-top: 0;
  }

  .page-faq .datum:last-child {
    border-bottom: none;
  }

  .page-faq .faq-group__head {
    grid-template-columns: 96px minmax(0, 1fr) 260px;
    align-items: start;
    gap: 26px;
  }

  .page-faq .faq-group__head .vnote {
    writing-mode: vertical-rl;
    letter-spacing: .28em;
    padding-top: 4px;
  }

  .page-faq .faq-group__fig {
    margin-top: 4px;
  }

  .page-faq .qa__q {
    font-size: 17px;
    padding-right: 8px;
  }

  .page-faq .qa__a {
    max-width: 78ch;
    padding-right: 30px;
  }

  .page-faq .faq-cta__inner {
    grid-template-columns: minmax(0, 1.4fr) auto;
    align-items: center;
  }

  .page-faq .faq-cta__actions {
    justify-content: flex-end;
  }

  .page-faq .faq-night-strip {
    padding: 20px 24px;
  }
}

/* ---------- 宽屏：显示右缘刻度并放宽间距 ---------- */
@media (min-width: 1180px) {
  .page-faq .faq-gauge {
    display: block;
    position: fixed;
    right: 26px;
    top: 50%;
    width: 14px;
    height: 240px;
    transform: translateY(-50%);
    pointer-events: none;
    border-right: 1px solid var(--line-strong);
    background-image: repeating-linear-gradient(
      to bottom,
      var(--copper) 0 1px,
      transparent 1px 24px
    );
    background-repeat: no-repeat;
    background-position: right top;
    background-size: 100% 100%;
    opacity: .75;
  }

  .page-faq .faq-hero,
  .page-faq .faq-body {
    padding-right: 34px;
  }

  .page-faq .faq-group__head {
    grid-template-columns: 110px minmax(0, 1fr) 320px;
    gap: 34px;
  }
}

@media (min-width: 1400px) {
  .page-faq .faq-body {
    max-width: 1320px;
  }
}
</PAGE_CSS>>>