.page-faq {
  --faq-line: 1px solid var(--ba-line);
  --faq-gap: clamp(20px, 3vw, 36px);
  --faq-pad: clamp(44px, 6vw, 84px);
  background: var(--ba-night);
  color: var(--ba-paper);
  overflow-x: hidden;
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  padding: clamp(38px, 6vw, 92px) 0 clamp(40px, 5vw, 78px);
  background:
    linear-gradient(118deg, var(--ba-night) 0%, var(--ba-night) 62%, var(--ba-panel) 62%, var(--ba-panel) 100%);
  border-bottom: var(--faq-line);
  overflow: hidden;
}

.page-faq .faq-hero::before {
  content: "";
  position: absolute;
  top: -22%;
  right: -8%;
  width: 54%;
  height: 150%;
  background: linear-gradient(180deg, rgba(53, 211, 199, 0.14), rgba(53, 211, 199, 0) 66%);
  transform: rotate(9deg);
  pointer-events: none;
}

.page-faq .faq-hero::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--ba-gold), transparent);
  opacity: 0.65;
}

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

.page-faq .faq-h1 {
  margin: 14px 0 0;
  font-size: clamp(30px, 5.2vw, 56px);
  line-height: 1.14;
  letter-spacing: -0.01em;
}

.page-faq .faq-hero__copy .ba-lede {
  margin: 18px 0 0;
  max-width: 54ch;
  color: var(--ba-steel);
}

.page-faq .faq-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 26px;
}

.page-faq .faq-hero__facts {
  list-style: none;
  margin: 30px 0 0;
  padding: 18px 0 0;
  border-top: var(--faq-line);
  display: grid;
  gap: 10px;
}

.page-faq .faq-hero__facts li {
  display: flex;
  align-items: baseline;
  gap: 10px;
  font-size: 15px;
  color: var(--ba-steel);
}

.page-faq .faq-hero__facts .ba-mono {
  color: var(--ba-gold);
  font-size: 17px;
  letter-spacing: 0.02em;
}

.page-faq .faq-hero__media {
  position: relative;
  margin: 0;
  aspect-ratio: 3 / 2;
  border: var(--faq-line);
  background: linear-gradient(150deg, var(--ba-lift), var(--ba-panel));
  clip-path: polygon(0 0, 100% 0, 100% 100%, 0 calc(100% - 34px));
  overflow: hidden;
}

.page-faq .faq-hero__media img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.92;
}

.page-faq .faq-hero__media .ba-media__caption {
  position: absolute;
  left: 0;
  bottom: 30px;
  padding: 6px 14px;
  background: rgba(10, 15, 44, 0.82);
  border-left: 2px solid var(--ba-gold);
  font-family: var(--ba-font-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--ba-gold-hi);
}

/* ---------- 主体两栏 ---------- */
.page-faq .faq-body-wrap {
  padding: var(--faq-pad) 0 clamp(52px, 7vw, 96px);
  background:
    radial-gradient(900px 420px at 88% 0%, rgba(27, 42, 91, 0.55), transparent 70%),
    var(--ba-night);
}

.page-faq .faq-body {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(30px, 4vw, 56px);
}

/* ---------- 左侧索引 ---------- */
.page-faq .faq-aside {
  position: relative;
}

.page-faq .faq-aside::before {
  content: "";
  position: absolute;
  top: 46px;
  left: 15px;
  width: 1px;
  height: calc(100% - 46px);
  background: linear-gradient(180deg, var(--ba-cyan), rgba(53, 211, 199, 0.08));
  opacity: 0.5;
}

.page-faq .faq-toc {
  list-style: none;
  margin: 16px 0 0;
  padding: 0;
  display: grid;
  gap: 2px;
}

.page-faq .faq-toc .ba-index__link {
  display: grid;
  grid-template-columns: 34px minmax(0, 1fr) auto;
  align-items: baseline;
  gap: 8px;
  padding: 10px 8px 10px 0;
  text-decoration: none;
  border-bottom: 1px solid rgba(46, 58, 104, 0.55);
  transition: background 0.25s var(--ba-ease), padding-left 0.25s var(--ba-ease);
}

.page-faq .faq-toc .ba-index__link:hover,
.page-faq .faq-toc .ba-index__link[aria-current="true"] {
  background: rgba(230, 184, 74, 0.08);
  padding-left: 6px;
}

.page-faq .faq-toc .ba-index__num {
  font-family: var(--ba-font-mono);
  font-size: 12px;
  color: var(--ba-cyan);
}

.page-faq .faq-toc .ba-index__title {
  font-size: 15px;
  color: var(--ba-paper);
}

.page-faq .faq-toc .ba-index__link[aria-current="true"] .ba-index__title {
  color: var(--ba-gold-hi);
}

.page-faq .faq-toc .ba-index__meta {
  font-family: var(--ba-font-mono);
  font-size: 11px;
  color: var(--ba-steel);
}

.page-faq .faq-aside__note {
  margin-top: 22px;
  display: grid;
  gap: 12px;
  justify-items: start;
}

/* ---------- 右侧问答 ---------- */
.page-faq .faq-content {
  display: grid;
  gap: clamp(38px, 5vw, 68px);
  min-width: 0;
}

.page-faq .faq-group {
  position: relative;
  padding-top: 8px;
  scroll-margin-top: 96px;
}

.page-faq .faq-group__head {
  display: grid;
  gap: 8px;
  padding-bottom: 18px;
  border-bottom: 2px solid var(--ba-line);
  margin-bottom: 6px;
}

.page-faq .faq-group__no {
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--ba-gold);
}

.page-faq .faq-group__head .ba-h2 {
  margin: 0;
  font-size: clamp(21px, 2.6vw, 30px);
  line-height: 1.25;
}

.page-faq .faq-group__head .ba-small {
  margin: 0;
}

/* 步骤条 */
.page-faq .faq-steps {
  list-style: none;
  margin: 22px 0 26px;
  padding: 0;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 18px;
  counter-reset: faq-step;
}

.page-faq .faq-step {
  position: relative;
  padding: 18px 16px 16px;
  border: var(--faq-line);
  border-top: 2px solid var(--ba-line);
  background: linear-gradient(160deg, rgba(27, 42, 91, 0.5), rgba(17, 26, 62, 0.35));
  box-shadow: var(--ba-shadow);
}

.page-faq .faq-step:first-child {
  border-top-color: var(--ba-gold);
}

.page-faq .faq-step__no {
  display: block;
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--ba-cyan);
  margin-bottom: 8px;
}

.page-faq .faq-step .ba-h3 {
  margin: 0 0 6px;
  font-size: 16px;
}

.page-faq .faq-step p {
  margin: 0;
  font-size: 14px;
  line-height: 1.7;
  color: var(--ba-steel);
}

/* 折叠问答 */
.page-faq .faq-item {
  border-bottom: 1px solid rgba(46, 58, 104, 0.7);
}

.page-faq .faq-item summary {
  display: flex;
  align-items: baseline;
  gap: 14px;
  padding: 16px 0;
  cursor: pointer;
  list-style: none;
}

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

.page-faq .faq-item__no {
  flex: none;
  font-size: 12px;
  color: var(--ba-cyan);
  min-width: 24px;
}

.page-faq .faq-item__q {
  font-size: 15.5px;
  line-height: 1.6;
  color: var(--ba-paper);
  transition: color 0.2s var(--ba-ease);
}

.page-faq .faq-item summary:hover .faq-item__q {
  color: var(--ba-gold-hi);
}

.page-faq .faq-item__sign {
  margin-left: auto;
  flex: none;
  font-family: var(--ba-font-mono);
  font-size: 18px;
  line-height: 1;
  color: var(--ba-steel);
  transition: transform 0.25s var(--ba-ease), color 0.2s var(--ba-ease);
}

.page-faq .faq-item[open] .faq-item__sign {
  transform: rotate(45deg);
  color: var(--ba-gold);
}

.page-faq .faq-item__a {
  padding: 0 0 20px 38px;
  border-left: 2px solid transparent;
  margin-left: 0;
  transition: border-color 0.3s var(--ba-ease);
}

.page-faq .faq-item[open] .faq-item__a {
  border-left-color: var(--ba-gold);
  padding-left: 16px;
}

.page-faq .faq-item__a p {
  margin: 0 0 8px;
  font-size: 14.5px;
  line-height: 1.78;
  color: var(--ba-steel);
}

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

.page-faq .faq-inline-links {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 12px !important;
}

/* 图片 */
.page-faq .faq-figure {
  margin: 22px 0 26px;
  border: var(--faq-line);
  background: var(--ba-panel);
  position: relative;
  overflow: hidden;
}

.page-faq .faq-figure::after {
  content: "";
  position: absolute;
  inset: auto 0 0 0;
  height: 2px;
  background: linear-gradient(90deg, var(--ba-cyan), var(--ba-gold) 70%, transparent);
}

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

.page-faq .faq-figure .ba-media__caption {
  position: absolute;
  top: 12px;
  left: 12px;
  padding: 5px 12px;
  background: rgba(10, 15, 44, 0.84);
  border-left: 2px solid var(--ba-cyan);
  font-family: var(--ba-font-mono);
  font-size: 11.5px;
  letter-spacing: 0.05em;
  color: var(--ba-cyan);
}

/* 表格 */
.page-faq .faq-tablewrap {
  margin: 22px 0 26px;
  overflow-x: auto;
  border: var(--faq-line);
  background: rgba(17, 26, 62, 0.6);
}

.page-faq .faq-tablewrap .ba-table {
  width: 100%;
  min-width: 520px;
  border-collapse: collapse;
}

.page-faq .faq-tablewrap caption {
  text-align: left;
  padding: 12px 14px 0;
}

.page-faq .faq-tablewrap th,
.page-faq .faq-tablewrap td {
  padding: 12px 14px;
  text-align: left;
  font-size: 14px;
  line-height: 1.65;
  border-bottom: 1px solid rgba(46, 58, 104, 0.6);
  vertical-align: top;
}

.page-faq .faq-tablewrap thead th {
  background: var(--ba-lift);
  color: var(--ba-paper);
  font-size: 13px;
  letter-spacing: 0.06em;
}

.page-faq .faq-tablewrap tbody th {
  color: var(--ba-gold-hi);
  font-weight: 500;
  white-space: nowrap;
}

.page-faq .faq-tablewrap tbody td {
  color: var(--ba-steel);
}

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

.page-faq .faq-tablewrap .ba-mono {
  font-size: 13px;
  color: var(--ba-cyan);
  white-space: nowrap;
}

/* 转会期旁注 */
.page-faq .faq-transfer-note {
  margin: 22px 0 26px;
  display: grid;
  gap: 8px;
  border-left: 3px solid var(--ba-bounty);
}

.page-faq .faq-transfer-note .faq-transfer-note__time {
  margin: 0;
  font-size: 20px;
  letter-spacing: 0.04em;
  color: var(--ba-bounty);
  filter: brightness(1.7);
}

.page-faq .faq-transfer-note p:last-child {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.7;
  color: var(--ba-steel);
}

/* 底部 CTA */
.page-faq .faq-cta {
  display: grid;
  gap: 20px;
  padding: clamp(24px, 3vw, 34px);
  border: var(--faq-line);
  border-left: 3px solid var(--ba-gold);
  background: linear-gradient(120deg, rgba(27, 42, 91, 0.85), rgba(10, 15, 44, 0.9));
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 22px), calc(100% - 22px) 100%, 0 100%);
}

.page-faq .faq-cta__copy .ba-h3 {
  margin: 8px 0 6px;
  font-size: clamp(19px, 2.2vw, 24px);
}

.page-faq .faq-cta__copy .ba-small {
  margin: 0;
  max-width: 56ch;
}

.page-faq .faq-cta__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

/* ---------- 响应式 ---------- */
@media (min-width: 720px) {
  .page-faq .faq-steps {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

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

  .page-faq .faq-hero__facts {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (min-width: 960px) {
  .page-faq .faq-hero__grid {
    grid-template-columns: minmax(0, 1.04fr) minmax(0, 0.96fr);
  }

  .page-faq .faq-body {
    grid-template-columns: 262px minmax(0, 1fr);
    align-items: start;
  }

  .page-faq .faq-aside {
    position: sticky;
    top: 92px;
  }

  .page-faq .faq-steps,
  .page-faq .faq-steps--apple {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .page-faq .faq-steps--apple {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

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

@media (max-width: 719px) {
  .page-faq .faq-hero__media {
    clip-path: polygon(0 0, 100% 0, 100% 100%, 0 calc(100% - 22px));
  }

  .page-faq .faq-item summary {
    gap: 10px;
  }

  .page-faq .faq-item__a,
  .page-faq .faq-item[open] .faq-item__a {
    padding-left: 12px;
  }

  .page-faq .faq-aside::before {
    display: none;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-item__sign,
  .page-faq .faq-toc .ba-index__link,
  .page-faq .faq-item__q {
    transition: none;
  }
}