.page-faq {
  --faq-line: rgba(216, 169, 75, 0.26);
  --faq-line-soft: rgba(216, 169, 75, 0.16);
  --faq-gap: 22px;
  background: var(--ink-900);
  color: var(--parchment);
  font-family: var(--font-body);
}

.page-faq .faq-crumb-row {
  padding-top: 22px;
}

.page-faq .faq-hero {
  position: relative;
  padding: 26px 0 40px;
  border-bottom: 3px solid var(--gold);
  background:
    radial-gradient(90% 120% at 88% 0%, rgba(18, 41, 74, 0.95) 0%, rgba(10, 26, 47, 0) 62%),
    repeating-linear-gradient(90deg, rgba(216, 169, 75, 0.055) 0 1px, transparent 1px 72px),
    var(--ink-900);
}

.page-faq .faq-hero-inner {
  position: relative;
}

.page-faq .faq-hero-inner::before {
  content: "";
  position: absolute;
  left: -14px;
  top: 4px;
  width: 4px;
  height: 62px;
  background: linear-gradient(180deg, var(--gold-hi), var(--gold));
}

.page-faq .faq-hero h1 {
  margin: 12px 0 0;
  max-width: 17em;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(34px, 8.4vw, 72px);
  line-height: 1.06;
  letter-spacing: -0.02em;
  color: var(--parchment);
}

.page-faq .faq-hero .lede {
  max-width: 60ch;
  margin: 18px 0 0;
  font-size: var(--fs-17);
  line-height: 1.85;
  color: rgba(237, 230, 214, 0.84);
}

.page-faq .faq-hero-stats {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 30px;
  margin: 26px 0 0;
  padding: 18px 0 0;
  list-style: none;
  border-top: 1px solid var(--faq-line);
}

.page-faq .faq-hero-stats li {
  display: flex;
  align-items: baseline;
  gap: 8px;
  font-size: var(--fs-14);
  color: var(--mist);
}

.page-faq .faq-hero-stats .mono {
  font-size: var(--fs-27);
  font-weight: 700;
  color: var(--gold);
  letter-spacing: -0.01em;
}

/* ---------- 类目索引 ---------- */

.page-faq .faq-index {
  padding: 42px 0 48px;
  background: linear-gradient(180deg, var(--ink-800) 0%, var(--ink-900) 100%);
  border-bottom: 1px solid var(--faq-line-soft);
}

.page-faq .faq-index-grid {
  display: grid;
  gap: 28px;
}

.page-faq .faq-index-main h2 {
  margin: 0;
  font-family: var(--font-serif);
  font-weight: 900;
  font-size: clamp(26px, 5.4vw, 42px);
  line-height: 1.18;
  letter-spacing: -0.01em;
  color: var(--parchment);
}

.page-faq .faq-index-lede {
  margin: 14px 0 0;
  max-width: 52ch;
  font-size: var(--fs-17);
  line-height: 1.8;
  color: rgba(237, 230, 214, 0.78);
}

.page-faq .faq-index-list {
  margin: 22px 0 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 10px;
}

.page-faq .faq-index-list a {
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 14px;
  min-height: 54px;
  padding: 13px 16px;
  border: 2px solid var(--faq-line-soft);
  border-left: 3px solid var(--gold);
  background: rgba(6, 19, 33, 0.62);
  color: var(--parchment);
  text-decoration: none;
  transition: border-color 0.18s var(--ease), background 0.18s var(--ease), transform 0.18s var(--ease);
}

.page-faq .faq-index-list a:hover,
.page-faq .faq-index-list a:focus-visible {
  border-color: var(--gold);
  background: rgba(18, 41, 74, 0.9);
  transform: translateX(4px);
}

.page-faq .faq-index-num {
  font-size: var(--fs-21);
  font-weight: 700;
  color: var(--gold);
  letter-spacing: -0.02em;
}

.page-faq .faq-index-label {
  font-size: var(--fs-17);
  font-weight: 600;
  line-height: 1.5;
}

.page-faq .faq-index-note {
  font-size: var(--fs-14);
  color: var(--mist);
  white-space: nowrap;
}

.page-faq .faq-index-art {
  margin: 0;
}

.page-faq .faq-index-art img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 9 / 7;
  object-fit: cover;
}

/* ---------- 问答主体 ---------- */

.page-faq .faq-body {
  padding: 44px 0 56px;
}

.page-faq .faq-layout {
  display: grid;
  gap: 30px;
}

.page-faq .faq-rail-title {
  margin: 0 0 10px;
  font-size: var(--fs-14);
  letter-spacing: 0.16em;
  color: var(--gold);
  font-family: var(--font-mono);
}

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

.page-faq .faq-rail-link {
  display: flex;
  align-items: baseline;
  gap: 8px;
  min-height: 44px;
  padding: 10px 12px;
  border-left: 3px solid transparent;
  color: var(--mist);
  text-decoration: none;
  font-size: var(--fs-14);
  line-height: 1.5;
  white-space: nowrap;
  transition: color 0.18s var(--ease), border-color 0.18s var(--ease), background 0.18s var(--ease);
}

.page-faq .faq-rail-link .mono {
  font-size: var(--fs-14);
  color: var(--gold);
}

.page-faq .faq-rail-link:hover {
  color: var(--gold-hi);
}

.page-faq .faq-rail-link[aria-current="true"] {
  color: var(--gold-hi);
  border-left-color: var(--jade);
  background: rgba(47, 163, 122, 0.1);
}

.page-faq .faq-group {
  scroll-margin-top: 140px;
  margin-top: 42px;
}

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

.page-faq .faq-group-head {
  display: grid;
  gap: 10px;
  padding-bottom: 14px;
  margin-bottom: 18px;
  border-bottom: 3px solid var(--gold);
}

.page-faq .faq-group-num {
  font-size: var(--fs-14);
  letter-spacing: 0.2em;
  color: var(--gold);
}

.page-faq .faq-group-head h3 {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(24px, 4.6vw, 34px);
  line-height: 1.2;
  letter-spacing: -0.02em;
  color: var(--parchment);
}

.page-faq .faq-group-head p {
  margin: 0;
  max-width: 58ch;
  font-size: var(--fs-17);
  line-height: 1.8;
  color: rgba(237, 230, 214, 0.74);
}

.page-faq .faq-group-art {
  margin: 22px 0 0;
}

.page-faq .faq-group-art img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 4 / 3;
  object-fit: cover;
}

/* ---------- 可展开问答 ---------- */

.page-faq .faq-group .disclosure {
  border: 2px solid var(--faq-line-soft);
  background: rgba(6, 19, 33, 0.55);
  box-shadow: var(--shadow-hard-sm);
}

.page-faq .disclosure-item + .disclosure-item {
  border-top: 2px solid var(--faq-line-soft);
}

.page-faq .disclosure-h {
  margin: 0;
  font-size: inherit;
  font-weight: inherit;
}

.page-faq .disclosure-trigger {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  width: 100%;
  min-height: 58px;
  padding: 16px 18px 16px 20px;
  border: 0;
  border-left: 2px solid transparent;
  background: transparent;
  color: var(--parchment);
  font-family: inherit;
  font-size: var(--fs-17);
  font-weight: 600;
  line-height: 1.55;
  text-align: left;
  cursor: pointer;
  transition: background 0.2s var(--ease), border-color 0.2s var(--ease), color 0.2s var(--ease);
}

.page-faq .disclosure-trigger:hover {
  background: rgba(216, 169, 75, 0.07);
  border-left-color: var(--gold);
}

.page-faq .disclosure-trigger:focus-visible {
  outline: 2px solid var(--gold-hi);
  outline-offset: -4px;
}

.page-faq .disclosure-trigger[aria-expanded="true"] {
  color: var(--gold-hi);
  border-left-color: var(--jade);
  background: rgba(47, 163, 122, 0.09);
}

.page-faq .disc-mark {
  position: relative;
  flex: 0 0 18px;
  width: 18px;
  height: 18px;
}

.page-faq .disc-mark::before,
.page-faq .disc-mark::after {
  content: "";
  position: absolute;
  background: var(--gold);
}

.page-faq .disc-mark::before {
  left: 0;
  top: 8px;
  width: 18px;
  height: 2px;
}

.page-faq .disc-mark::after {
  left: 8px;
  top: 0;
  width: 2px;
  height: 18px;
  transition: transform 0.28s var(--ease);
}

.page-faq .disclosure-trigger[aria-expanded="true"] .disc-mark::after {
  transform: scaleY(0);
}

.page-faq .disclosure-panel {
  padding: 0 20px 20px 20px;
  border-left: 2px solid var(--jade);
  background: rgba(10, 26, 47, 0.5);
}

.page-faq .faq-answer {
  max-width: 64ch;
  padding-top: 16px;
  font-size: var(--fs-17);
  line-height: 1.85;
  color: rgba(237, 230, 214, 0.86);
}

.page-faq .faq-answer p {
  margin: 0 0 12px;
}

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

.page-faq .faq-term {
  position: relative;
  color: var(--gold-hi);
  border-bottom: 1px dashed var(--gold);
  cursor: help;
}

.page-faq .faq-term::after {
  content: attr(data-tip);
  position: absolute;
  left: 0;
  bottom: calc(100% + 10px);
  width: max-content;
  max-width: 260px;
  padding: 9px 11px;
  background: var(--ink-800);
  border: 1px solid var(--gold-line);
  box-shadow: var(--shadow-hard-sm);
  color: var(--parchment);
  font-size: var(--fs-14);
  line-height: 1.65;
  white-space: normal;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.18s var(--ease), visibility 0.18s var(--ease);
  z-index: 6;
}

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

.page-faq .faq-range {
  position: relative;
  height: 12px;
  margin: 16px 0 8px;
  border: 1px solid var(--gold-line);
  background:
    repeating-linear-gradient(90deg, rgba(237, 230, 214, 0.14) 0 1px, transparent 1px 14px),
    rgba(10, 26, 47, 0.92);
}

.page-faq .faq-range span {
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: var(--val, 60%);
  background: linear-gradient(90deg, var(--jade), var(--gold) 68%, var(--magenta));
}

.page-faq .faq-range-caption {
  margin: 0;
  font-size: var(--fs-14);
  color: var(--mist);
  letter-spacing: 0.04em;
}

/* ---------- 尾部引导 ---------- */

.page-faq .faq-tail {
  padding: 46px 0 56px;
  border-top: 3px solid var(--gold);
  background:
    linear-gradient(135deg, rgba(110, 43, 62, 0.6) 0%, rgba(18, 41, 74, 0.92) 55%, rgba(6, 19, 33, 1) 100%),
    var(--ink-950);
}

.page-faq .faq-tail-inner {
  display: grid;
  gap: 30px;
}

.page-faq .faq-tail h2 {
  margin: 10px 0 0;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(26px, 5.4vw, 42px);
  line-height: 1.16;
  letter-spacing: -0.02em;
  color: var(--parchment);
}

.page-faq .faq-tail-copy p {
  margin: 16px 0 0;
  max-width: 58ch;
  font-size: var(--fs-17);
  line-height: 1.85;
  color: rgba(237, 230, 214, 0.82);
}

.page-faq .faq-tail-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 24px;
}

.page-faq .faq-tail-actions .btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 46px;
  padding: 0 20px;
  text-decoration: none;
}

.page-faq .faq-tail-note {
  margin: 20px 0 0;
  font-size: var(--fs-14);
  color: var(--mist);
  word-break: break-word;
}

.page-faq .faq-tail-panel {
  padding: 22px 20px;
  border: 2px solid var(--gold-line);
  border-left: 3px solid var(--jade);
  background: rgba(6, 19, 33, 0.7);
  box-shadow: var(--shadow-hard-sm);
}

.page-faq .faq-tail-panel-title {
  margin: 0 0 14px;
  font-size: var(--fs-21);
  font-weight: 700;
  color: var(--gold-hi);
  line-height: 1.4;
}

.page-faq .faq-tail-list {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 12px;
}

.page-faq .faq-tail-list li {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 12px;
  align-items: baseline;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--faq-line-soft);
  font-size: var(--fs-17);
  line-height: 1.7;
  color: rgba(237, 230, 214, 0.86);
}

.page-faq .faq-tail-list li:last-child {
  padding-bottom: 0;
  border-bottom: 0;
}

.page-faq .faq-tail-list .mono {
  font-size: var(--fs-14);
  color: var(--gold);
}

/* ---------- 响应式 ---------- */

@media (max-width: 560px) {
  .page-faq .faq-index-list a {
    grid-template-columns: auto 1fr;
  }

  .page-faq .faq-index-note {
    grid-column: 2;
    white-space: normal;
  }

  .page-faq .disclosure-panel {
    padding: 0 16px 18px 16px;
  }

  .page-faq .faq-hero-inner::before {
    left: -10px;
    height: 48px;
  }
}

@media (min-width: 900px) {
  .page-faq .faq-index {
    padding: 56px 0 62px;
  }

  .page-faq .faq-index-grid {
    grid-template-columns: minmax(0, 1.1fr) minmax(0, 0.9fr);
    gap: 56px;
    align-items: center;
  }

  .page-faq .faq-group-art {
    max-width: 620px;
  }

  .page-faq .faq-tail-inner {
    grid-template-columns: minmax(0, 1.25fr) minmax(0, 0.75fr);
    gap: 52px;
    align-items: start;
  }
}

@media (min-width: 960px) {
  .page-faq .faq-hero {
    padding: 34px 0 52px;
  }

  .page-faq .faq-layout {
    grid-template-columns: 230px minmax(0, 1fr);
    gap: 54px;
    align-items: start;
  }

  .page-faq .faq-rail {
    position: sticky;
    top: 132px;
  }

  .page-faq .faq-rail-list {
    flex-direction: column;
    gap: 0;
    overflow: visible;
    border-top: 1px solid var(--faq-line-soft);
  }

  .page-faq .faq-rail-link {
    padding: 12px 12px;
    white-space: normal;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-index-list a,
  .page-faq .disclosure-trigger,
  .page-faq .disc-mark::after {
    transition: none;
  }
}

.page-faq {
  --val: 1rem;
}