.page-faq {
  --faq-focus: #8A6BFF;
  --faq-panel-soft: rgba(22, 32, 58, 0.72);
  background: var(--tbs-ink);
  color: var(--tbs-ice);
  overflow-x: hidden;
}

.page-faq .tbs-breadcrumb {
  padding-top: clamp(18px, 3vw, 28px);
}

/* ---------- 头部 ---------- */

.page-faq .faq-hero {
  position: relative;
  padding: clamp(26px, 5vw, 56px) 0 clamp(24px, 4vw, 44px);
  background:
    radial-gradient(880px 420px at 84% 4%, rgba(53, 242, 224, 0.13), transparent 62%),
    radial-gradient(680px 380px at 4% 96%, rgba(255, 106, 43, 0.10), transparent 60%),
    linear-gradient(180deg, var(--tbs-ink) 0%, var(--tbs-ink-2) 100%);
}

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

.page-faq .faq-hero__lead h1 {
  margin: 16px 0 0;
  font-family: var(--font-serif);
  font-weight: 800;
  font-size: clamp(1.8rem, 5.4vw, 3.05rem);
  line-height: 1.2;
  letter-spacing: -0.01em;
  color: var(--tbs-ice);
}

.page-faq .faq-hero__lead .tbs-lede {
  margin: 18px 0 0;
  max-width: 60ch;
  font-family: var(--font-body);
  font-size: clamp(0.98rem, 2vw, 1.08rem);
  line-height: 1.8;
  color: var(--tbs-mist);
}

.page-faq .faq-hero__art {
  margin: 0;
  border-radius: var(--tbs-radius);
  overflow: hidden;
  background: var(--tbs-ink-2);
  box-shadow: 0 0 0 1px var(--tbs-line-soft), 0 30px 70px -40px rgba(53, 242, 224, 0.35);
}

.page-faq .faq-hero__art .tbs-figure__img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
}

/* ---------- 主题筛选 ---------- */

.page-faq .faq-topics {
  padding: clamp(30px, 5vw, 48px) 0 0;
}

.page-faq .faq-topics .tbs-eyebrow {
  display: block;
  margin-bottom: 14px;
}

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

.page-faq .tbs-filter {
  appearance: none;
  font-family: var(--font-body);
  font-size: 0.88rem;
  font-weight: 500;
  line-height: 1;
  color: var(--tbs-mist);
  background: transparent;
  border: 1px solid var(--tbs-line);
  border-radius: 999px;
  padding: 10px 18px;
  cursor: pointer;
  transition: color 0.18s var(--tbs-ease), border-color 0.18s var(--tbs-ease),
    background-color 0.18s var(--tbs-ease);
}

.page-faq .tbs-filter:hover {
  color: var(--tbs-ice);
  border-color: rgba(138, 155, 184, 0.45);
}

.page-faq .tbs-filter[aria-pressed="true"] {
  color: var(--tbs-ice);
  border-color: var(--faq-focus);
  background: rgba(138, 107, 255, 0.16);
  box-shadow: inset 0 0 0 1px rgba(138, 107, 255, 0.38);
}

.page-faq .tbs-filter:focus-visible {
  outline: 2px solid var(--tbs-cyan);
  outline-offset: 3px;
}

/* ---------- 问答分组 ---------- */

.page-faq .faq-group {
  padding: clamp(52px, 8vw, 96px) 0 0;
  scroll-margin-top: calc(var(--tbs-header-h) + 28px);
}

.page-faq .faq-group__head {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 6px 20px;
  align-items: baseline;
  padding-bottom: 22px;
  border-bottom: 1px solid var(--tbs-line);
}

.page-faq .faq-group__no {
  font-family: var(--font-display);
  font-size: clamp(2rem, 5vw, 3.1rem);
  font-weight: 800;
  line-height: 1;
  letter-spacing: -0.02em;
  color: var(--tbs-cyan);
  opacity: 0.6;
}

.page-faq .faq-group__title {
  margin: 0;
  font-family: var(--font-serif);
  font-weight: 800;
  font-size: clamp(1.3rem, 3.4vw, 1.85rem);
  line-height: 1.3;
  color: var(--tbs-ice);
}

.page-faq .faq-group__note {
  margin: 10px 0 0;
  max-width: 52ch;
  font-size: 0.92rem;
  line-height: 1.7;
  color: var(--tbs-mist);
}

/* ---------- 问答条目 ---------- */

.page-faq .faq-list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-faq .faq-item {
  border-bottom: 1px solid var(--tbs-line-soft);
}

.page-faq .faq-item summary {
  list-style: none;
  cursor: pointer;
  display: grid;
  grid-template-columns: auto 1fr auto;
  gap: 0 18px;
  align-items: start;
  padding: 22px 4px;
  transition: background-color 0.18s var(--tbs-ease);
}

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

.page-faq .faq-item summary::marker {
  content: "";
}

.page-faq .faq-item summary:hover {
  background: rgba(53, 242, 224, 0.035);
}

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

.page-faq .faq-item__no {
  font-family: var(--font-mono);
  font-size: 0.76rem;
  letter-spacing: 0.06em;
  color: rgba(53, 242, 224, 0.65);
  padding-top: 4px;
  white-space: nowrap;
}

.page-faq .faq-item__q {
  font-family: var(--font-body);
  font-weight: 500;
  font-size: clamp(1rem, 2vw, 1.08rem);
  line-height: 1.6;
  color: var(--tbs-ice);
}

.page-faq .faq-item__sign {
  position: relative;
  width: 14px;
  height: 14px;
  margin-top: 6px;
  flex: none;
}

.page-faq .faq-item__sign::before,
.page-faq .faq-item__sign::after {
  content: "";
  position: absolute;
  background: var(--tbs-cyan);
  transition: transform 0.22s var(--tbs-ease), opacity 0.22s var(--tbs-ease);
}

.page-faq .faq-item__sign::before {
  top: 6px;
  left: 0;
  width: 14px;
  height: 2px;
}

.page-faq .faq-item__sign::after {
  top: 0;
  left: 6px;
  width: 2px;
  height: 14px;
}

.page-faq .faq-item details[open] .faq-item__sign::after {
  transform: scaleY(0);
  opacity: 0;
}

.page-faq .faq-item details[open] > summary {
  background: rgba(22, 32, 58, 0.55);
}

.page-faq .faq-item__body {
  display: grid;
  gap: 10px;
  padding: 4px 4px 28px 46px;
  background: rgba(22, 32, 58, 0.35);
  animation: faqReveal 0.26s var(--tbs-ease) both;
}

.page-faq .faq-item__conclusion {
  margin: 0;
  font-family: var(--font-serif);
  font-weight: 700;
  font-size: clamp(0.98rem, 2vw, 1.05rem);
  line-height: 1.72;
  color: var(--tbs-cyan);
}

.page-faq .faq-item__body p:not(.faq-item__conclusion) {
  margin: 0;
  max-width: 68ch;
  font-size: 0.95rem;
  line-height: 1.8;
  color: var(--tbs-mist);
}

@keyframes faqReveal {
  from {
    opacity: 0;
    transform: translateY(-4px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-item__body {
    animation: none;
  }
  .page-faq .faq-item__sign::before,
  .page-faq .faq-item__sign::after,
  .page-faq .tbs-filter {
    transition: none;
  }
}

/* ---------- 大屏分组 ---------- */

.page-faq .faq-screen__layout {
  display: grid;
  gap: clamp(20px, 3vw, 32px);
  grid-template-columns: 1fr;
  padding: 28px 0 8px;
}

.page-faq .faq-screen__fig {
  margin: 0;
  border-radius: var(--tbs-radius);
  overflow: hidden;
  background: var(--tbs-panel);
  box-shadow: 0 0 0 1px var(--tbs-line-soft);
}

.page-faq .faq-screen__fig .tbs-figure__img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
}

.page-faq .faq-screen__fig .tbs-figure__cap {
  padding: 14px 18px;
  font-size: 0.82rem;
  line-height: 1.7;
  color: var(--tbs-mist);
  background: var(--tbs-panel);
}

.page-faq .faq-screen__spec {
  display: grid;
  gap: 0;
  grid-template-columns: 1fr;
  align-content: start;
  border-top: 1px solid var(--tbs-line);
}

.page-faq .faq-screen__spec-row {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 12px;
  align-items: baseline;
  padding: 16px 2px;
  border-bottom: 1px solid var(--tbs-line-soft);
}

.page-faq .faq-screen__spec-k {
  font-size: 0.86rem;
  letter-spacing: 0.02em;
  color: var(--tbs-mist);
}

.page-faq .faq-screen__spec-v {
  font-family: var(--font-mono);
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--tbs-flame);
  white-space: nowrap;
}

/* ---------- 收尾 ---------- */

.page-faq .faq-tail {
  display: grid;
  gap: 18px;
  margin-top: 40px;
  padding: clamp(24px, 4vw, 36px);
  border-radius: var(--tbs-radius);
  background: linear-gradient(120deg, rgba(53, 242, 224, 0.10), rgba(255, 106, 43, 0.09));
  box-shadow: inset 0 0 0 1px var(--tbs-line-soft);
}

.page-faq .faq-tail__text {
  margin: 0;
  max-width: 52ch;
  font-family: var(--font-serif);
  font-weight: 700;
  font-size: clamp(1.02rem, 2.4vw, 1.24rem);
  line-height: 1.68;
  color: var(--tbs-ice);
}

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

.page-faq .faq-tail__actions .tbs-btn {
  display: inline-block;
  text-decoration: none;
}

/* ---------- 相关内容 ---------- */

.page-faq .faq-crosslinks {
  padding: clamp(56px, 8vw, 96px) 0 clamp(64px, 9vw, 110px);
}

.page-faq .faq-crosslinks .tbs-eyebrow {
  display: block;
  margin-bottom: 16px;
}

.page-faq .faq-crosslinks__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 0;
  border-top: 1px solid var(--tbs-line);
}

.page-faq .faq-crosslinks__list li {
  border-bottom: 1px solid var(--tbs-line-soft);
}

.page-faq .faq-crosslinks__list a {
  display: block;
  padding: 18px 2px;
  font-size: 0.96rem;
  line-height: 1.6;
  color: var(--tbs-mist);
  text-decoration: none;
  transition: color 0.18s var(--tbs-ease), padding-left 0.18s var(--tbs-ease);
}

.page-faq .faq-crosslinks__list a:hover {
  color: var(--tbs-cyan);
  padding-left: 8px;
}

/* ---------- 响应式 ---------- */

@media (min-width: 760px) {
  .page-faq .faq-screen__layout {
    grid-template-columns: minmax(0, 1.55fr) minmax(0, 1fr);
    align-items: start;
  }

  .page-faq .faq-screen__spec {
    border-top: 1px solid var(--tbs-line);
    padding-top: 4px;
  }

  .page-faq .faq-tail {
    grid-template-columns: 1fr auto;
    align-items: center;
  }
}

@media (min-width: 980px) {
  .page-faq .faq-hero__inner {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
  }

  .page-faq .faq-group__head {
    grid-template-columns: minmax(96px, 130px) minmax(0, 1fr);
    gap: 6px 34px;
  }

  .page-faq .faq-group__note {
    margin-top: 8px;
  }

  .page-faq .faq-item summary {
    padding: 26px 6px;
  }

  .page-faq .faq-item__body {
    padding: 6px 6px 32px 52px;
  }
}

@media (max-width: 520px) {
  .page-faq .faq-item summary {
    grid-template-columns: 1fr auto;
    gap: 6px 14px;
    padding: 20px 2px;
  }

  .page-faq .faq-item__no {
    grid-column: 1 / -1;
    padding-top: 0;
    font-size: 0.72rem;
  }

  .page-faq .faq-item__body {
    padding: 4px 2px 24px 2px;
  }

  .page-faq .faq-screen__spec-row {
    grid-template-columns: 1fr;
    gap: 6px;
  }

  .page-faq .faq-tail__actions .tbs-btn {
    width: 100%;
    text-align: center;
  }
}
<<<END>>>