.page-faq {
  --faq-hero-top: #14332B;
  --faq-card: #16221F;
  --faq-ink-on-cream: #2A1F1A;
  --faq-rail-w: 212px;
  background: var(--ink-night);
  color: var(--text);
  font-family: var(--font-body);
  overflow-x: hidden;
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  background:
    radial-gradient(115% 88% at 84% 4%, rgba(79, 227, 208, .16), transparent 60%),
    radial-gradient(90% 72% at 6% 98%, rgba(255, 124, 51, .10), transparent 62%),
    linear-gradient(180deg, var(--faq-hero-top) 0%, var(--ink-night) 80%);
  border-bottom: 1px solid var(--hairline);
}

.page-faq .faq-hero-inner {
  width: min(var(--shell), 100% - var(--gutter) * 2);
  margin-inline: auto;
  padding: clamp(24px, 5vw, 54px) 0 clamp(34px, 6vw, 66px);
  display: grid;
  gap: clamp(24px, 4vw, 46px);
}

.page-faq .faq-crumbs {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  color: var(--moss);
}

.page-faq .faq-crumbs a {
  color: var(--text-dim);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color .2s var(--ease), border-color .2s var(--ease);
}

.page-faq .faq-crumbs a:hover,
.page-faq .faq-crumbs a:focus-visible {
  color: var(--cyan);
  border-bottom-color: var(--cyan);
}

.page-faq .faq-kicker {
  margin: 0;
  font-family: var(--font-num);
  font-size: 12px;
  letter-spacing: .18em;
  color: var(--cyan);
}

.page-faq .faq-hero h1 {
  margin: 14px 0 0;
  font-family: var(--font-display);
  font-size: clamp(34px, 6.6vw, 62px);
  font-weight: 800;
  line-height: 1.06;
  letter-spacing: -.02em;
  color: #fff;
}

.page-faq .faq-lede {
  margin: 18px 0 0;
  max-width: 46ch;
  font-size: clamp(16px, 1.9vw, 18px);
  line-height: 1.75;
  color: var(--text-dim);
}

.page-faq .faq-jump {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 24px 0 0;
  padding: 0;
  list-style: none;
}

.page-faq .faq-jump a {
  display: inline-flex;
  align-items: center;
  padding: 8px 15px;
  border-radius: var(--radius-pill);
  border: 1px solid var(--hairline);
  background: rgba(18, 28, 26, .74);
  color: var(--text-dim);
  font-size: 13px;
  text-decoration: none;
  transition: color .2s var(--ease), background .2s var(--ease), border-color .2s var(--ease);
}

.page-faq .faq-jump a:hover,
.page-faq .faq-jump a:focus-visible {
  color: var(--ink-night);
  background: var(--cyan);
  border-color: var(--cyan);
}

.page-faq .faq-hero-media {
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: 0 26px 62px rgba(0, 0, 0, .46);
}

.page-faq .faq-hero-media .media-frame {
  border-radius: var(--radius-lg);
}

/* ---------- 主体骨架 ---------- */
.page-faq .faq-body {
  width: min(var(--shell), 100% - var(--gutter) * 2);
  margin-inline: auto;
  padding: clamp(30px, 5vw, 64px) 0 clamp(44px, 7vw, 92px);
  display: grid;
  gap: clamp(26px, 4vw, 52px);
}

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

.page-faq .faq-rail-title {
  margin: 0 0 10px;
  font-family: var(--font-num);
  font-size: 11px;
  letter-spacing: .2em;
  color: var(--moss);
  padding-left: 14px;
}

.page-faq .faq-rail-track {
  display: flex;
  gap: 8px;
  overflow-x: auto;
  padding: 2px 2px 10px;
  scrollbar-width: none;
  -webkit-overflow-scrolling: touch;
}

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

.page-faq .faq-rail-item {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  flex: none;
  padding: 9px 15px;
  border-radius: var(--radius-pill);
  border: 1px solid var(--hairline);
  background: rgba(18, 28, 26, .7);
  color: var(--text-dim);
  font-size: 14px;
  line-height: 1.35;
  text-decoration: none;
  white-space: nowrap;
  transition: color .2s var(--ease), background .2s var(--ease), border-color .2s var(--ease);
}

.page-faq .faq-rail-item:hover,
.page-faq .faq-rail-item:focus-visible {
  color: #fff;
  border-color: var(--hairline-cyan);
}

.page-faq .faq-rail-item.is-active {
  color: var(--ink-night);
  background: var(--cyan);
  border-color: var(--cyan);
  font-weight: 600;
}

.page-faq .faq-rail-num {
  font-family: var(--font-num);
  font-size: 11px;
  letter-spacing: .06em;
  opacity: .78;
}

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

/* ---------- 问答章节 ---------- */
.page-faq .faq-section {
  scroll-margin-top: 110px;
}

.page-faq .faq-section + .faq-section,
.page-faq .faq-section + .faq-tail {
  margin-top: clamp(38px, 5.5vw, 70px);
}

.page-faq .faq-section-head {
  border-left: 3px solid var(--orange);
  padding-left: 16px;
}

.page-faq .faq-section-kicker {
  margin: 0;
  font-family: var(--font-num);
  font-size: 12px;
  letter-spacing: .14em;
  color: var(--amber);
}

.page-faq .faq-section h2 {
  margin: 9px 0 0;
  font-family: var(--font-display);
  font-size: clamp(24px, 3.4vw, 36px);
  font-weight: 800;
  line-height: 1.16;
  letter-spacing: -.015em;
  color: #fff;
}

.page-faq .faq-list {
  margin-top: 20px;
}

.page-faq .faq-item {
  border-top: 1px solid var(--hairline);
  padding: 4px 0 14px;
}

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

.page-faq .faq-q {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 13px 18px;
  border-radius: var(--radius-pill);
  border: 1px solid var(--hairline);
  background: var(--ink-carbon);
  color: var(--text);
  font-family: var(--font-display);
  font-size: clamp(16px, 2.3vw, 20px);
  font-weight: 600;
  line-height: 1.38;
  letter-spacing: -.01em;
  list-style: none;
  cursor: pointer;
  transition: background .2s var(--ease), border-color .2s var(--ease), color .2s var(--ease);
}

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

.page-faq .faq-q:hover {
  background: var(--faq-card);
  border-color: var(--hairline-cyan);
}

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

.page-faq .faq-q::after {
  content: "+";
  flex: none;
  margin-left: auto;
  width: 24px;
  height: 24px;
  display: grid;
  place-items: center;
  border-radius: 50%;
  border: 1px solid var(--hairline);
  font-family: var(--font-num);
  font-size: 14px;
  line-height: 1;
  color: var(--cyan);
  transition: background .2s var(--ease), color .2s var(--ease), border-color .2s var(--ease);
}

.page-faq details[open] > .faq-q {
  background: var(--faq-card);
  border-color: var(--hairline-cyan);
  color: #fff;
}

.page-faq details[open] > .faq-q::after {
  content: "-";
  background: var(--cyan);
  border-color: var(--cyan);
  color: var(--ink-night);
}

.page-faq .faq-a {
  margin: 12px 0 0;
  padding: 18px 20px;
  max-width: 68ch;
  border-radius: var(--radius-md);
  background: var(--cream);
  color: var(--faq-ink-on-cream);
  font-size: 16px;
  line-height: 1.75;
}

.page-faq .faq-a p {
  margin: 0;
}

.page-faq .faq-a p + p {
  margin-top: 10px;
}

.page-faq .faq-a a {
  color: #A8441B;
  text-decoration: underline;
  text-underline-offset: 3px;
}

.page-faq .faq-a strong,
.page-faq .faq-a .num {
  font-family: var(--font-num);
  font-weight: 700;
}

/* ---------- 更新节奏对照表 ---------- */
.page-faq .faq-band {
  margin-top: 28px;
  border-radius: var(--radius-lg);
  border: 1px solid var(--hairline);
  background: linear-gradient(140deg, #131F1C 0%, #0C1614 100%);
  overflow: hidden;
}

.page-faq .faq-band-head {
  padding: 22px 22px 16px;
  border-bottom: 1px solid var(--hairline-cyan);
}

.page-faq .faq-band-head h3 {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(20px, 2.8vw, 28px);
  font-weight: 800;
  letter-spacing: -.015em;
  color: #fff;
}

.page-faq .faq-band-head p {
  margin: 10px 0 0;
  max-width: 56ch;
  color: var(--text-dim);
  font-size: 15px;
  line-height: 1.72;
}

.page-faq .faq-table-scroll {
  overflow-x: auto;
}

.page-faq .faq-table {
  width: 100%;
  min-width: 580px;
  border-collapse: collapse;
  font-size: 15px;
}

.page-faq .faq-table caption {
  padding: 14px 22px 10px;
  text-align: left;
  color: var(--moss);
  font-size: 12px;
  letter-spacing: .12em;
}

.page-faq .faq-table th,
.page-faq .faq-table td {
  padding: 13px 22px;
  text-align: left;
  vertical-align: top;
  border-top: 1px solid var(--hairline-soft);
}

.page-faq .faq-table thead th {
  border-top: 1px solid var(--hairline);
  background: rgba(79, 227, 208, .06);
  color: var(--cyan);
  font-family: var(--font-num);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: .1em;
  white-space: nowrap;
}

.page-faq .faq-table tbody tr:nth-child(even) {
  background: rgba(195, 207, 202, .028);
}

.page-faq .faq-table tbody td:first-child {
  color: #fff;
  font-weight: 600;
}

.page-faq .faq-table tbody td {
  color: var(--text-dim);
}

.page-faq .faq-table .num {
  font-family: var(--font-num);
  color: var(--cyan);
  font-variant-numeric: tabular-nums;
}

/* ---------- 抢断区间 ---------- */
.page-faq .faq-range {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 12px 18px;
  margin-top: 20px;
  padding-left: 18px;
  border-left: 3px solid var(--cyan);
}

.page-faq .faq-range-value {
  font-family: var(--font-num);
  font-size: clamp(40px, 8vw, 68px);
  font-weight: 700;
  line-height: 1;
  letter-spacing: -.02em;
  color: var(--cyan);
}

.page-faq .faq-range-text {
  color: var(--text-dim);
  font-size: 14px;
  line-height: 1.6;
}

.page-faq .faq-figure {
  margin: 22px 0 24px;
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--hairline);
}

.page-faq .faq-figure .media-frame {
  border-radius: var(--radius-lg);
}

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

/* ---------- 收尾 ---------- */
.page-faq .faq-tail {
  scroll-margin-top: 110px;
  padding: clamp(24px, 4vw, 36px);
  border-radius: var(--radius-lg);
  border: 1px solid var(--hairline);
  background: linear-gradient(150deg, rgba(255, 124, 51, .13), rgba(18, 28, 26, .92) 62%);
}

.page-faq .faq-tail h2 {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(22px, 3vw, 30px);
  font-weight: 800;
  letter-spacing: -.015em;
  color: #fff;
}

.page-faq .faq-tail p {
  margin: 12px 0 0;
  max-width: 58ch;
  color: var(--text-dim);
  font-size: 16px;
  line-height: 1.75;
}

.page-faq .faq-tail-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 20px;
}

/* ---------- 断点 ---------- */
@media (min-width: 760px) {
  .page-faq .faq-hero-inner {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, .95fr);
    align-items: center;
    column-gap: clamp(28px, 4vw, 56px);
  }

  .page-faq .faq-crumbs {
    grid-column: 1 / -1;
  }
}

@media (min-width: 980px) {
  .page-faq .faq-body {
    grid-template-columns: var(--faq-rail-w) minmax(0, 1fr);
    align-items: start;
    gap: clamp(34px, 5vw, 72px);
  }

  .page-faq .faq-rail {
    position: sticky;
    top: 104px;
  }

  .page-faq .faq-rail-title {
    padding-left: 2px;
  }

  .page-faq .faq-rail-track {
    flex-direction: column;
    gap: 2px;
    overflow: visible;
    padding: 0 0 0 12px;
    border-left: 1px solid var(--hairline);
  }

  .page-faq .faq-rail-item {
    border-radius: var(--radius-sm);
    white-space: normal;
    background: transparent;
    border-color: transparent;
  }

  .page-faq .faq-rail-item:hover {
    background: rgba(18, 28, 26, .8);
    border-color: transparent;
  }

  .page-faq .faq-rail-item.is-active {
    background: var(--cyan);
    border-color: var(--cyan);
  }
}

@media (max-width: 520px) {
  .page-faq .faq-q {
    align-items: flex-start;
    border-radius: var(--radius-md);
    padding: 12px 14px;
  }

  .page-faq .faq-a {
    padding: 15px 16px;
    font-size: 15px;
  }

  .page-faq .faq-tail {
    padding: 22px 18px;
  }

  .page-faq .faq-range {
    padding-left: 14px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-q,
  .page-faq .faq-q::after,
  .page-faq .faq-rail-item,
  .page-faq .faq-jump a,
  .page-faq .faq-crumbs a {
    transition: none;
  }
}
</final>