.page-faq {
  --faq-line: rgba(147, 174, 181, .22);
  --faq-sand-line: rgba(216, 179, 106, .34);
  background: var(--night);
  color: var(--paper);
  font-family: var(--font-body);
  padding-bottom: 96px;
}

.page-faq .wrap {
  max-width: 1200px;
  margin-inline: auto;
  padding-inline: 20px;
}

/* ---------- 面包屑 ---------- */
.page-faq .breadcrumbs {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 12px;
  letter-spacing: .08em;
  color: var(--mist);
  margin-bottom: 22px;
}

.page-faq .breadcrumbs a {
  color: var(--mist);
  text-decoration: none;
  transition: color var(--ease);
}

.page-faq .breadcrumbs a:hover,
.page-faq .breadcrumbs a:focus-visible {
  color: var(--flame);
}

.page-faq .breadcrumbs .sep {
  color: rgba(147, 174, 181, .5);
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  padding-block: 34px 46px;
}

.page-faq .faq-hero-top {
  display: grid;
  grid-template-columns: minmax(0, 1.06fr) minmax(0, .94fr);
  gap: 44px;
  align-items: start;
}

.page-faq .sec-eyebrow {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--sand);
  margin: 0 0 16px;
}

.page-faq .h-hero {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(30px, 4.2vw, 52px);
  line-height: 1.06;
  letter-spacing: -.018em;
  margin: 0 0 20px;
  color: var(--paper);
}

.page-faq .lede {
  font-size: 15.5px;
  line-height: 1.85;
  color: var(--mist);
  max-width: 42ch;
  margin: 0 0 30px;
}

.page-faq .faq-hero-stats {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 1px;
  margin: 0;
  background: var(--faq-line);
  border: 1px solid var(--faq-line);
}

.page-faq .faq-stat {
  background: var(--stand);
  padding: 14px 12px 15px;
  display: flex;
  flex-direction: column-reverse;
  gap: 6px;
}

.page-faq .faq-stat dt {
  font-size: 11.5px;
  letter-spacing: .06em;
  color: var(--mist);
}

.page-faq .faq-stat dd {
  margin: 0;
}

.page-faq .faq-stat .num {
  font-family: var(--font-mono);
  font-size: 26px;
  line-height: 1;
  color: var(--flame);
  font-variant-numeric: tabular-nums;
}

.page-faq .faq-hero-art {
  margin: 0;
  border: 1px solid var(--faq-sand-line);
  background: var(--stand);
  box-shadow: 12px 12px 0 rgba(19, 62, 74, .8);
}

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

/* ---------- 主体两栏 ---------- */
.page-faq .faq-body {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 252px;
  gap: 52px;
  align-items: start;
  padding-block: 46px 0;
  border-top: 1px solid var(--faq-line);
}

.page-faq .faq-stream {
  min-width: 0;
  display: grid;
  gap: 62px;
}

/* ---------- 区块标题 ---------- */
.page-faq .sec-head {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 10px 18px;
  padding-bottom: 12px;
  margin-bottom: 18px;
  border-bottom: 1px solid var(--faq-sand-line);
}

.page-faq .sec-label {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--sand);
  margin: 0;
}

.page-faq .sec-title {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(22px, 2.6vw, 31px);
  line-height: 1.18;
  letter-spacing: -.012em;
  color: var(--paper);
  margin: 0;
}

.page-faq .sec-note {
  font-size: 14px;
  line-height: 1.82;
  color: var(--mist);
  max-width: 48ch;
  margin: 0 0 24px;
}

/* ---------- 折叠问答 ---------- */
.page-faq .faq-list {
  border-top: 1px solid var(--faq-line);
}

.page-faq .faq-item {
  border-bottom: 1px solid var(--faq-line);
  scroll-margin-top: 92px;
}

.page-faq .faq-item summary {
  list-style: none;
  cursor: pointer;
  display: grid;
  grid-template-columns: 42px minmax(0, 1fr) 22px;
  align-items: baseline;
  gap: 10px;
  padding: 17px 6px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 16.5px;
  line-height: 1.46;
  color: var(--paper);
  transition: color var(--ease), background var(--ease);
}

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

.page-faq .faq-item summary:hover,
.page-faq .faq-item summary:focus-visible {
  color: var(--flame);
}

.page-faq .faq-item summary:focus-visible {
  outline: 2px solid var(--flame);
  outline-offset: -2px;
}

.page-faq .faq-qnum {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .04em;
  color: var(--sand);
  font-weight: 400;
}

.page-faq .faq-item summary::after {
  content: "+";
  justify-self: end;
  font-family: var(--font-mono);
  font-size: 17px;
  line-height: 1;
  color: var(--flame);
}

.page-faq .faq-item[open] summary::after {
  content: "\2212";
}

.page-faq .faq-item[open] summary {
  color: var(--paper);
}

.page-faq .faq-answer {
  margin: 2px 6px 20px 48px;
  padding: 14px 18px;
  max-width: 64ch;
  background: var(--sand-paper);
  color: var(--ink);
  border-left: 3px solid var(--sand);
  font-size: 14.5px;
  line-height: 1.85;
}

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

.page-faq .faq-answer .num {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  color: #0A2A33;
  font-weight: 700;
}

.page-faq .faq-mark {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  font-family: var(--font-mono);
  font-size: 12.5px;
  white-space: nowrap;
  border-bottom: 1px solid rgba(216, 179, 106, .7);
  padding-bottom: 1px;
}

.page-faq .faq-mark::before {
  content: "";
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--mint);
  flex: 0 0 auto;
}

.page-faq .faq-mark--flame::before {
  background: var(--flame);
}

.page-faq .faq-mark--sand::before {
  background: var(--sand);
}

.page-faq .faq-mark--alert::before {
  background: var(--alert);
}

/* ---------- 数字锚点图 ---------- */
.page-faq .faq-anchor-art {
  position: relative;
  margin: 34px 0 0;
  border: 1px solid var(--faq-line);
  background: var(--stand);
  overflow: hidden;
}

.page-faq .faq-anchor-art img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 5 / 3;
  object-fit: cover;
}

.page-faq .faq-anchor-art .img-caption {
  position: absolute;
  left: 0;
  bottom: 0;
  padding: 8px 14px;
  background: rgba(8, 21, 26, .84);
  color: var(--mist);
  font-size: 12px;
  line-height: 1.6;
  letter-spacing: .04em;
}

/* ---------- 规则入口卡片 ---------- */
.page-faq .faq-routes {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(210px, 1fr));
  gap: 1px;
  background: var(--faq-line);
  border: 1px solid var(--faq-line);
}

.page-faq .faq-route {
  display: grid;
  align-content: start;
  gap: 10px;
  padding: 22px 18px 24px;
  background: var(--stand);
  color: inherit;
  text-decoration: none;
  transition: background var(--ease);
}

.page-faq .faq-route:hover,
.page-faq .faq-route:focus-visible {
  background: #17495A;
}

.page-faq .faq-route .num {
  font-family: var(--font-mono);
  font-size: 30px;
  line-height: 1;
  color: var(--flame);
  font-variant-numeric: tabular-nums;
}

.page-faq .faq-route h3 {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 16px;
  line-height: 1.42;
  color: var(--paper);
  margin: 0;
}

.page-faq .faq-route p {
  font-size: 13px;
  line-height: 1.78;
  color: var(--mist);
  margin: 0;
}

.page-faq .faq-route-go {
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: .1em;
  color: var(--sand);
  margin-top: 2px;
}

/* ---------- 收尾 ---------- */
.page-faq .faq-still {
  border-top: 1px solid var(--faq-sand-line);
  padding-top: 26px;
}

.page-faq .faq-still-inner {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-end;
  justify-content: space-between;
  gap: 22px;
  padding: 24px 22px 26px;
  background: var(--stand);
  border-left: 4px solid var(--flame);
}

.page-faq .faq-still-copy {
  max-width: 56ch;
}

.page-faq .faq-still-text {
  font-size: 14px;
  line-height: 1.82;
  color: var(--mist);
  margin: 14px 0 0;
}

/* ---------- 右侧索引 ---------- */
.page-faq .faq-index {
  position: sticky;
  top: 76px;
  align-self: start;
  max-height: calc(100vh - 120px);
  overflow-y: auto;
  padding: 16px 16px 18px;
  background: var(--stand);
  border-top: 2px solid var(--flame);
  scrollbar-width: thin;
}

.page-faq .faq-index-head {
  font-family: var(--font-mono);
  font-size: 10.5px;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--sand);
  margin: 0 0 12px;
}

.page-faq .faq-index-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 1px;
}

.page-faq .faq-index-list a {
  display: grid;
  grid-template-columns: 24px minmax(0, 1fr);
  gap: 6px;
  align-items: baseline;
  padding: 6px 6px 6px 8px;
  font-size: 12.5px;
  line-height: 1.55;
  color: var(--mist);
  text-decoration: none;
  border-left: 2px solid transparent;
  transition: color var(--ease), background var(--ease), border-color var(--ease);
}

.page-faq .faq-index-list a:hover,
.page-faq .faq-index-list a:focus-visible {
  color: var(--paper);
  background: rgba(255, 255, 255, .05);
  border-left-color: var(--sand);
}

.page-faq .faq-index-list a .num {
  font-family: var(--font-mono);
  font-size: 10.5px;
  color: var(--sand);
}

.page-faq .faq-index-foot {
  margin: 16px 0 0;
  padding-top: 14px;
  border-top: 1px solid var(--faq-line);
}

/* ---------- 响应式 ---------- */
@media (max-width: 1080px) {
  .page-faq .faq-body {
    grid-template-columns: minmax(0, 1fr);
    gap: 0;
  }

  .page-faq .faq-index {
    display: none;
  }
}

@media (max-width: 880px) {
  .page-faq .faq-hero-top {
    grid-template-columns: minmax(0, 1fr);
    gap: 30px;
  }

  .page-faq .faq-hero-art {
    box-shadow: 8px 8px 0 rgba(19, 62, 74, .8);
  }

  .page-faq .faq-stream {
    gap: 52px;
  }
}

@media (max-width: 560px) {
  .page-faq {
    padding-bottom: 72px;
  }

  .page-faq .wrap {
    padding-inline: 16px;
  }

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

  .page-faq .faq-stat .num {
    font-size: 22px;
  }

  .page-faq .faq-item summary {
    grid-template-columns: 30px minmax(0, 1fr) 18px;
    gap: 8px;
    padding: 15px 2px;
    font-size: 15.5px;
  }

  .page-faq .faq-answer {
    margin: 2px 0 18px;
    padding: 13px 14px;
    font-size: 14px;
  }

  .page-faq .faq-anchor-art .img-caption {
    position: static;
    background: rgba(8, 21, 26, .9);
  }

  .page-faq .faq-still-inner {
    padding: 20px 16px 22px;
  }

  .page-faq .faq-still-inner .btn {
    width: 100%;
    text-align: center;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-item summary,
  .page-faq .faq-route,
  .page-faq .faq-index-list a,
  .page-faq .breadcrumbs a {
    transition: none;
  }
}