.page-faq {
  --faq-rail: 236px;
  display: block;
  overflow-x: clip;
  color: var(--paper);
}

/* ---------- 面包屑 ---------- */
.page-faq .breadcrumbs {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  padding: calc(var(--header-h) + 16px) 0 4px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--mist);
}
.page-faq .breadcrumbs a {
  color: var(--mist);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color .18s ease, border-color .18s ease;
}
.page-faq .breadcrumbs a:hover,
.page-faq .breadcrumbs a:focus-visible {
  color: var(--cyan);
  border-bottom-color: var(--cyan);
  outline: none;
}
.page-faq .breadcrumbs [aria-current="page"] {
  color: var(--cyan);
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  overflow: hidden;
  padding: 0 0 clamp(34px, 6vw, 76px);
  background:
    radial-gradient(120% 100% at 6% 0%, rgba(53, 242, 192, 0.14), transparent 58%),
    radial-gradient(90% 80% at 98% 18%, rgba(255, 90, 54, 0.10), transparent 62%),
    linear-gradient(180deg, var(--panel-deep) 0%, var(--ink) 100%);
  border-bottom: 1px solid var(--hair);
}
.page-faq .faq-hero::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background-image: repeating-linear-gradient(
    180deg,
    rgba(53, 242, 192, 0.055) 0 1px,
    transparent 1px 7px
  );
  -webkit-mask-image: linear-gradient(180deg, #000 0%, transparent 82%);
  mask-image: linear-gradient(180deg, #000 0%, transparent 82%);
}

.page-faq .faq-hero-inner {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(26px, 4vw, 46px);
  align-items: center;
  margin-top: clamp(20px, 3vw, 38px);
}
@media (min-width: 900px) {
  .page-faq .faq-hero-inner {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
  }
}

.page-faq .faq-hero-copy {
  min-width: 0;
}

.page-faq .eyebrow {
  margin: 0 0 14px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--cyan);
}
.page-faq .eyebrow::before {
  content: "";
  display: inline-block;
  width: 22px;
  height: 2px;
  margin-right: 10px;
  vertical-align: middle;
  background: var(--flame);
}

.page-faq .faq-hero h1 {
  margin: 0 0 18px;
  font-family: var(--font-head);
  font-weight: 700;
  font-size: clamp(32px, 5.6vw, 62px);
  line-height: 1.04;
  letter-spacing: -0.02em;
  color: #FFFFFF;
}
.page-faq .faq-hero h1 em {
  font-style: normal;
  color: var(--cyan);
}

.page-faq .faq-hero .lede {
  margin: 0;
  max-width: 56ch;
  font-size: clamp(15px, 1.3vw, 17px);
  line-height: 1.72;
  color: var(--mist);
}

.page-faq .faq-readout {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 26px;
  margin: 26px 0 0;
  padding: 16px 0 0;
  border-top: 1px solid var(--hair);
  list-style: none;
}
.page-faq .faq-readout li {
  display: inline-flex;
  align-items: baseline;
  gap: 7px;
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--mist);
}
.page-faq .faq-readout .mono {
  font-family: var(--font-mono);
  font-size: 20px;
  font-weight: 600;
  line-height: 1;
  color: var(--cyan);
  letter-spacing: 0.02em;
}

.page-faq .faq-hero-media {
  position: relative;
  margin: 0;
  border: 1px solid var(--edge);
  border-radius: 3px;
  overflow: hidden;
  background: var(--panel);
  box-shadow: 10px 10px 0 rgba(4, 20, 17, 0.55);
}
.page-faq .faq-hero-media img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  aspect-ratio: 12 / 7;
  object-fit: cover;
}
.page-faq .faq-hero-media::after {
  content: "";
  position: absolute;
  inset: 8px;
  border: 1px dashed rgba(53, 242, 192, 0.28);
  pointer-events: none;
}

/* ---------- 主体两栏 ---------- */
.page-faq .faq-body {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(26px, 4vw, 52px);
  padding-top: clamp(30px, 5vw, 64px);
  padding-bottom: clamp(36px, 6vw, 84px);
}
@media (min-width: 980px) {
  .page-faq .faq-body {
    grid-template-columns: var(--faq-rail) minmax(0, 1fr);
    align-items: start;
  }
}

/* ---------- 左侧锚点 ---------- */
.page-faq .faq-index {
  min-width: 0;
}
@media (min-width: 980px) {
  .page-faq .faq-index {
    position: sticky;
    top: calc(var(--header-h) + 22px);
  }
}
.page-faq .faq-index-title {
  margin: 0 0 12px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--mist);
}
.page-faq .faq-index-list {
  display: flex;
  gap: 8px;
  margin: 0;
  padding: 0 0 8px;
  list-style: none;
  overflow-x: auto;
  scrollbar-width: thin;
  scrollbar-color: var(--edge) transparent;
  -webkit-overflow-scrolling: touch;
}
@media (min-width: 980px) {
  .page-faq .faq-index-list {
    flex-direction: column;
    overflow: visible;
    padding-bottom: 0;
  }
}
.page-faq .faq-index-link {
  display: inline-flex;
  align-items: baseline;
  gap: 9px;
  white-space: nowrap;
  padding: 10px 13px;
  border: 1px solid var(--hair);
  border-left: 2px solid transparent;
  border-radius: 2px;
  background: rgba(12, 58, 49, 0.55);
  color: var(--mist);
  font-size: 13px;
  text-decoration: none;
  transition: color .18s ease, border-color .18s ease, background .18s ease;
}
.page-faq .faq-index-link .mono {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.04em;
  color: var(--edge);
}
.page-faq .faq-index-link:hover,
.page-faq .faq-index-link:focus-visible {
  color: var(--paper);
  border-color: var(--cyan);
  border-left-color: var(--cyan);
  background: rgba(53, 242, 192, 0.10);
  outline: none;
}

/* ---------- 问答分组 ---------- */
.page-faq .faq-stream {
  min-width: 0;
}
.page-faq .faq-group {
  padding: clamp(20px, 3vw, 32px) 0 clamp(8px, 1.4vw, 16px);
  border-top: 1px solid var(--hair);
  scroll-margin-top: calc(var(--header-h) + 24px);
}
.page-faq .faq-group:first-child {
  border-top: none;
  padding-top: 0;
}

.page-faq .faq-group-head {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px 14px;
  margin-bottom: clamp(14px, 2vw, 22px);
}
.page-faq .faq-group-num {
  flex: 0 0 auto;
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.04em;
  color: var(--ink);
  background: var(--cyan);
  padding: 4px 9px;
  border-radius: 2px;
}
.page-faq .faq-group-title {
  flex: 1 1 220px;
  margin: 0;
  font-family: var(--font-head);
  font-weight: 600;
  font-size: clamp(20px, 2.5vw, 29px);
  line-height: 1.16;
  letter-spacing: -0.01em;
  color: var(--paper);
}
.page-faq .faq-group-head .tag {
  flex: 0 0 auto;
  margin-left: auto;
}

.page-faq .faq-group-body--split {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(22px, 3vw, 34px);
}
@media (min-width: 760px) {
  .page-faq .faq-group-body--split {
    grid-template-columns: minmax(0, 1fr) minmax(0, 236px);
    align-items: start;
  }
}
.page-faq .faq-group-questions {
  min-width: 0;
}

/* ---------- 折叠问答 ---------- */
.page-faq .faq-q {
  border-bottom: 1px solid var(--hair-soft);
}
.page-faq .faq-q > summary {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  gap: 14px;
  align-items: start;
  padding: 15px 2px 15px 0;
  cursor: pointer;
  list-style: none;
  color: var(--paper);
  transition: color .18s ease;
}
.page-faq .faq-q > summary::-webkit-details-marker {
  display: none;
}
.page-faq .faq-q > summary::marker {
  content: "";
}
.page-faq .faq-num {
  padding-top: 3px;
  font-family: var(--font-mono);
  font-size: 12px;
  line-height: 1.5;
  letter-spacing: 0.04em;
  color: var(--edge);
}
.page-faq .faq-q-text {
  font-family: var(--font-head);
  font-weight: 500;
  font-size: clamp(16px, 1.55vw, 19px);
  line-height: 1.42;
  letter-spacing: -0.005em;
}
.page-faq .faq-q-mark {
  position: relative;
  width: 16px;
  height: 16px;
  margin-top: 5px;
  flex: 0 0 auto;
}
.page-faq .faq-q-mark::before,
.page-faq .faq-q-mark::after {
  content: "";
  position: absolute;
  background: var(--cyan);
  transition: transform .22s ease, opacity .22s ease;
}
.page-faq .faq-q-mark::before {
  left: 0;
  right: 0;
  top: 7px;
  height: 2px;
}
.page-faq .faq-q-mark::after {
  top: 0;
  bottom: 0;
  left: 7px;
  width: 2px;
}
.page-faq .faq-q[open] .faq-q-mark::after {
  transform: scaleY(0);
  opacity: 0;
}
.page-faq .faq-q > summary:hover .faq-q-text {
  color: var(--cyan);
}
.page-faq .faq-q > summary:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 3px;
}
.page-faq .faq-q[open] > summary .faq-num {
  color: var(--flame);
}

.page-faq .faq-a {
  padding: 2px 8px 18px 0;
  max-width: 66ch;
  font-size: 15.5px;
  line-height: 1.78;
  color: var(--mist);
}
@media (min-width: 640px) {
  .page-faq .faq-a {
    padding: 2px 48px 20px 32px;
  }
}
.page-faq .faq-a .mono {
  font-family: var(--font-mono);
  font-size: 0.95em;
  color: var(--paper);
  letter-spacing: 0.02em;
  word-break: break-all;
}
.page-faq .faq-link {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(53, 242, 192, 0.4);
  transition: border-color .18s ease, color .18s ease;
}
.page-faq .faq-link:hover,
.page-faq .faq-link:focus-visible {
  color: var(--paper);
  border-bottom-color: var(--flame);
  outline: none;
}

.page-faq .faq-steps {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 12px 0 4px;
  padding: 0;
  list-style: none;
}
@media (min-width: 640px) {
  .page-faq .faq-steps {
    padding-left: 32px;
  }
}
.page-faq .faq-steps li {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 5px 12px;
  border: 1px solid var(--hair);
  border-radius: 999px;
  background: rgba(12, 58, 49, 0.6);
  font-size: 12.5px;
  color: var(--paper);
}
.page-faq .faq-steps .mono {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--cyan);
}

/* ---------- 手机端截图 ---------- */
.page-faq .faq-shot {
  margin: 0;
  padding: 10px;
  border: 1px solid var(--edge);
  border-radius: 3px;
  background: linear-gradient(160deg, rgba(53, 242, 192, 0.10), rgba(12, 58, 49, 0.92));
}
.page-faq .faq-shot img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  aspect-ratio: 1 / 2;
  object-fit: cover;
  border-radius: 2px;
}
.page-faq .faq-shot figcaption {
  margin-top: 10px;
  font-family: var(--font-mono);
  font-size: 11px;
  line-height: 1.55;
  letter-spacing: 0.05em;
  color: var(--mist);
}

/* ---------- 底部行动区 ---------- */
.page-faq .faq-cta {
  border-top: 1px solid var(--hair);
  background:
    linear-gradient(90deg, rgba(53, 242, 192, 0.08), transparent 62%),
    var(--panel-deep);
  padding: clamp(30px, 5vw, 62px) 0;
}
.page-faq .faq-cta-inner {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 20px;
  align-items: center;
}
@media (min-width: 820px) {
  .page-faq .faq-cta-inner {
    grid-template-columns: minmax(0, 1fr) auto;
  }
}
.page-faq .faq-cta-copy {
  min-width: 0;
}
.page-faq .faq-cta h2 {
  margin: 0 0 8px;
  font-family: var(--font-head);
  font-weight: 600;
  font-size: clamp(22px, 2.8vw, 32px);
  line-height: 1.16;
  letter-spacing: -0.01em;
  color: var(--paper);
}
.page-faq .faq-cta p {
  margin: 0;
  max-width: 54ch;
  font-size: 15.5px;
  line-height: 1.72;
  color: var(--mist);
}
.page-faq .faq-cta-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

/* ---------- 动效收敛 ---------- */
@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-index-link,
  .page-faq .faq-breadcrumbs a,
  .page-faq .breadcrumbs a,
  .page-faq .faq-q-mark::before,
  .page-faq .faq-q-mark::after,
  .page-faq .faq-link {
    transition: none;
  }
}