.page-faq {
  --faq-item-bg: rgba(16, 27, 46, 0.9);
  --faq-item-bg-open: rgba(16, 27, 46, 0.98);
  --faq-line-soft: rgba(124, 250, 74, 0.55);
}

/* ---------- 开场 ---------- */
.page-faq .faq-hero {
  position: relative;
  padding-top: clamp(24px, 4vw, 48px);
}

.page-faq .faq-hero__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(26px, 4vw, 48px);
  align-items: center;
}

.page-faq .faq-hero__title {
  margin: 10px 0 8px;
  color: var(--paper);
}

.page-faq .faq-hero__lede {
  max-width: 34em;
  color: var(--paper);
  opacity: 0.88;
}

.page-faq .faq-hero__meta {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 20px;
}

.page-faq .faq-hero__visual {
  position: relative;
  margin: 0;
  overflow: hidden;
  background: var(--surface);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 36px), calc(100% - 36px) 100%, 0 100%);
}

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

.page-faq .faq-hero__visual::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background: radial-gradient(circle at 72% 18%, rgba(124, 250, 74, 0.18), transparent 62%);
}

/* ---------- 筛选条 ---------- */
.page-faq .faq-bar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 10px 22px;
  padding: 14px 0 16px;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  margin-bottom: clamp(18px, 3vw, 28px);
  position: sticky;
  top: 0;
  z-index: 6;
  background: rgba(11, 12, 16, 0.94);
  backdrop-filter: blur(8px);
}

.page-faq .faq-bar .filter-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 0;
}

.page-faq .filter-chip {
  min-height: 34px;
  padding: 0 14px;
  font-size: 13px;
  letter-spacing: 0.02em;
  border-radius: 0;
  transition: background-color 0.2s var(--ease), color 0.2s var(--ease), border-color 0.2s var(--ease);
}

.page-faq .filter-chip[aria-pressed="true"] {
  background: var(--neon);
  border-color: var(--neon);
  color: var(--ink);
  font-weight: 700;
}

.page-faq .filter-chip.faq-chip--all {
  letter-spacing: 0.08em;
}

.page-faq .faq-bar__hint {
  margin: 0;
  font-size: 12px;
  letter-spacing: 0.04em;
  color: var(--muted);
}

/* ---------- 问答列表 ---------- */
.page-faq .faq-list {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 10px;
}

.page-faq .faq-item {
  border: 1px solid var(--line);
  background: linear-gradient(180deg, var(--faq-item-bg), rgba(11, 12, 16, 0.9));
  transition: border-color 0.25s var(--ease), background-color 0.25s var(--ease);
}

.page-faq .faq-item:hover {
  border-color: var(--faq-line-soft);
}

.page-faq .faq-item[open] {
  border-color: rgba(124, 250, 74, 0.78);
  background: linear-gradient(180deg, var(--faq-item-bg-open), rgba(11, 12, 16, 0.96));
}

.page-faq .faq-item__q {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  align-items: baseline;
  gap: 12px;
  padding: 15px 14px;
  cursor: pointer;
  list-style: none;
  color: var(--paper);
  font-size: 15px;
  font-weight: 600;
  line-height: 1.55;
}

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

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

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

.page-faq .faq-item__num {
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--neon);
}

.page-faq .faq-item__icon {
  position: relative;
  width: 15px;
  height: 15px;
  align-self: center;
  flex: none;
}

.page-faq .faq-item__icon::before,
.page-faq .faq-item__icon::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  top: 50%;
  height: 1.5px;
  background: var(--neon);
  transition: transform 0.25s var(--ease);
}

.page-faq .faq-item__icon::after {
  transform: rotate(90deg);
}

.page-faq .faq-item[open] .faq-item__icon::after {
  transform: rotate(0deg);
}

.page-faq .faq-item__a {
  margin: 0 16px 18px;
  padding-left: 14px;
  border-left: 2px solid var(--neon);
  color: var(--paper);
}

.page-faq .faq-item__a p {
  margin: 0 0 10px;
  max-width: 34em;
  font-size: 14.5px;
  line-height: 1.75;
  opacity: 0.9;
}

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

/* ---------- 指标小表 ---------- */
.page-faq .faq-table-wrap {
  margin: 10px 0 2px;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  border: 1px solid var(--line);
}

.page-faq .faq-table {
  width: 100%;
  min-width: 420px;
  border-collapse: collapse;
  font-size: 13px;
}

.page-faq .faq-table th,
.page-faq .faq-table td {
  padding: 9px 12px;
  text-align: left;
  vertical-align: top;
  border-bottom: 1px solid var(--line);
}

.page-faq .faq-table thead th {
  font-size: 11.5px;
  font-weight: 500;
  letter-spacing: 0.08em;
  color: var(--muted);
  background: rgba(34, 48, 74, 0.35);
}

.page-faq .faq-table tbody th {
  font-weight: 600;
  white-space: nowrap;
  color: var(--neon);
  font-family: var(--font-mono);
  font-size: 12px;
}

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

.page-faq .faq-table tbody tr:hover {
  background: rgba(34, 48, 74, 0.4);
}

/* ---------- 面板示意 ---------- */
.page-faq .faq-figure {
  margin: 14px 0 2px;
  border: 1px solid var(--line);
  background: var(--surface);
}

.page-faq .faq-figure img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  aspect-ratio: 3 / 2;
  object-fit: cover;
}

.page-faq .faq-figure figcaption {
  padding: 10px 14px;
  border-top: 1px solid var(--line);
  font-size: 12px;
  line-height: 1.65;
  color: var(--muted);
}

/* ---------- 收尾 ---------- */
.page-faq .faq-cta {
  display: grid;
  gap: 18px;
  padding: clamp(22px, 3vw, 34px);
  border: 1px solid var(--line);
  background: linear-gradient(112deg, rgba(16, 27, 46, 0.96), rgba(11, 12, 16, 0.9) 64%);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 28px), calc(100% - 28px) 100%, 0 100%);
}

.page-faq .faq-cta__title {
  margin: 0;
  font-size: clamp(20px, 2.8vw, 30px);
  line-height: 1.3;
  letter-spacing: -0.01em;
  color: var(--paper);
}

.page-faq .faq-cta__text {
  margin: 10px 0 0;
  max-width: 34em;
  font-size: 15px;
  line-height: 1.72;
  color: var(--paper);
  opacity: 0.85;
}

.page-faq .faq-cta__links {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

/* ---------- 响应式 ---------- */
@media (min-width: 700px) {
  .page-faq .faq-item__q {
    padding: 17px 20px;
    font-size: 16px;
    gap: 16px;
  }

  .page-faq .faq-item__a {
    margin: 0 20px 20px 52px;
    padding-left: 20px;
  }

  .page-faq .faq-item__a p {
    font-size: 15px;
  }

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

@media (min-width: 960px) {
  .page-faq .faq-hero__grid {
    grid-template-columns: minmax(0, 1.06fr) minmax(0, 0.94fr);
    align-items: start;
  }

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

  .page-faq .faq-cta {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, 0.85fr);
    align-items: end;
  }

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

@media (max-width: 560px) {
  .page-faq .faq-bar {
    position: static;
    backdrop-filter: none;
  }

  .page-faq .faq-item__q {
    gap: 10px;
    padding: 14px 12px;
    font-size: 14.5px;
  }

  .page-faq .faq-item__a {
    margin: 0 12px 16px;
    padding-left: 12px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-item,
  .page-faq .filter-chip,
  .page-faq .faq-item__icon::before,
  .page-faq .faq-item__icon::after {
    transition: none;
  }
}