.page-faq {
  --faq-gap: clamp(20px, 3vw, 40px);
  --faq-card-radius: 18px;
  --faq-index-w: 272px;
  background: var(--bg-ink);
  color: var(--text-main);
  font-family: var(--font-sans);
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  overflow: hidden;
  padding: clamp(28px, 5vw, 64px) 0 clamp(36px, 6vw, 80px);
  background:
    radial-gradient(120% 90% at 108% -10%, rgba(0, 245, 212, .16), transparent 58%),
    linear-gradient(160deg, var(--jewel-indigo) 0%, #120C33 46%, var(--bg-ink) 100%);
  border-bottom: 1px solid var(--line-steel);
}

.page-faq .faq-hero::after {
  content: "";
  position: absolute;
  right: -12%;
  top: 8%;
  width: min(520px, 62vw);
  height: min(520px, 62vw);
  border: 1px solid rgba(0, 245, 212, .18);
  border-radius: 46% 54% 58% 42% / 52% 44% 56% 48%;
  transform: rotate(14deg);
  pointer-events: none;
}

.page-faq .faq-hero__grid {
  position: relative;
  z-index: 1;
  display: grid;
  gap: clamp(28px, 4vw, 48px);
  align-items: center;
}

.page-faq .faq-hero__title {
  margin: 14px 0 0;
  font-size: clamp(30px, 6.4vw, 58px);
  line-height: 1.12;
  letter-spacing: -.01em;
  font-weight: 900;
}

.page-faq .faq-hero__lead {
  margin: 16px 0 0;
  max-width: 56ch;
  color: var(--text-muted);
  font-size: 15px;
  line-height: 1.7;
}

.page-faq .faq-hero__quick {
  margin-top: 24px;
  gap: 12px;
}

.page-faq .faq-hero__stats {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 26px;
  margin: 28px 0 0;
  padding: 18px 0 0;
  list-style: none;
  border-top: 1px solid var(--line-steel);
}

.page-faq .faq-stat {
  display: flex;
  align-items: baseline;
  gap: 8px;
}

.page-faq .faq-stat__num {
  font-size: 22px;
  font-weight: 700;
  color: var(--accent-cyan);
  line-height: 1;
}

.page-faq .faq-stat__label {
  font-size: 13px;
  color: var(--text-muted);
}

.page-faq .faq-hero__media {
  margin: 0;
  border: 1px solid var(--line-steel);
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: var(--bg-ink-2);
}

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

.page-faq .faq-hero__media .bs-media__cap {
  padding: 12px 18px 16px;
  font-size: 12px;
  letter-spacing: .06em;
  color: var(--text-muted);
}

/* ---------- 主体：目录 + 问答 ---------- */
.page-faq .faq-body {
  padding: clamp(32px, 5vw, 68px) 0 clamp(48px, 7vw, 96px);
}

.page-faq .faq-body__grid {
  display: grid;
  gap: var(--faq-gap);
}

/* 左侧抽屉式索引 */
.page-faq .faq-index {
  background: linear-gradient(180deg, var(--bg-ink-2), rgba(11, 18, 38, .55));
  border: 1px solid var(--line-steel);
  border-radius: var(--radius-lg);
  padding: 20px 18px 18px;
}

.page-faq .faq-index__label {
  margin: 0 0 14px;
  color: var(--accent-cyan);
  letter-spacing: .18em;
}

.page-faq .faq-index__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 4px;
  counter-reset: faqidx;
}

.page-faq .faq-index__link {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 11px 12px;
  border-radius: var(--radius-sm);
  border: 1px solid transparent;
  color: var(--text-main);
  text-decoration: none;
  font-size: 14px;
  transition: border-color .22s var(--ease), background-color .22s var(--ease), color .22s var(--ease);
}

.page-faq .faq-index__link:hover,
.page-faq .faq-index__link:focus-visible {
  border-color: var(--accent-cyan);
  background: rgba(0, 245, 212, .08);
  color: var(--accent-cyan);
  outline: none;
}

.page-faq .faq-index__no {
  font-size: 12px;
  color: var(--text-muted);
  letter-spacing: .04em;
}

.page-faq .faq-index__link:hover .faq-index__no,
.page-faq .faq-index__link:focus-visible .faq-index__no {
  color: var(--accent-cyan);
}

.page-faq .faq-index__foot {
  margin-top: 18px;
  padding-top: 16px;
  border-top: 1px dashed var(--line-steel);
}

.page-faq .faq-index__tip {
  margin: 0 0 12px;
  font-size: 13px;
  line-height: 1.6;
  color: var(--text-muted);
}

/* 问答分组 */
.page-faq .faq-main {
  display: grid;
  gap: clamp(30px, 4.4vw, 56px);
  min-width: 0;
}

.page-faq .faq-group {
  --group-accent: var(--accent-cyan);
  position: relative;
  scroll-margin-top: calc(var(--header-h) + 20px);
}

.page-faq .faq-group:nth-of-type(2) { --group-accent: var(--accent-gold); }
.page-faq .faq-group:nth-of-type(3) { --group-accent: var(--accent-cyan); }
.page-faq .faq-group:nth-of-type(4) { --group-accent: var(--data-up); }
.page-faq .faq-group:nth-of-type(5) { --group-accent: var(--accent-orange); }

.page-faq .faq-group__head {
  position: relative;
  padding: 0 0 0 20px;
  margin-bottom: 18px;
  border-left: 3px solid var(--group-accent);
}

.page-faq .faq-group__no {
  display: block;
  font-size: 12px;
  letter-spacing: .18em;
  color: var(--group-accent);
}

.page-faq .faq-group__title {
  margin: 6px 0 0;
  font-size: clamp(20px, 3vw, 28px);
  line-height: 1.3;
  font-weight: 800;
}

.page-faq .faq-group__desc {
  margin: 8px 0 0;
  font-size: 14px;
  line-height: 1.65;
  color: var(--text-muted);
  max-width: 62ch;
}

/* 折叠问答 */
.page-faq .faq-list {
  display: grid;
  gap: 12px;
}

.page-faq .faq-item {
  background: var(--bg-ink-2);
  border: 1px solid var(--line-steel);
  border-radius: var(--faq-card-radius);
  overflow: hidden;
  transition: border-color .24s var(--ease), box-shadow .24s var(--ease), transform .24s var(--ease);
}

.page-faq .faq-item:hover {
  border-color: rgba(0, 245, 212, .45);
}

.page-faq .faq-item[open] {
  border-color: var(--accent-cyan);
  box-shadow: 0 0 0 1px rgba(0, 245, 212, .28), 0 22px 44px -32px rgba(0, 245, 212, .75);
}

.page-faq .faq-item__q {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 16px 18px;
  cursor: pointer;
  list-style: none;
  font-size: 15px;
  font-weight: 700;
  line-height: 1.5;
  color: var(--text-main);
}

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

.page-faq .faq-item__q:focus-visible {
  outline: 2px solid var(--accent-cyan);
  outline-offset: -2px;
}

.page-faq .faq-item__icon {
  position: relative;
  flex: 0 0 auto;
  width: 16px;
  height: 16px;
}

.page-faq .faq-item__icon::before,
.page-faq .faq-item__icon::after {
  content: "";
  position: absolute;
  background: var(--accent-cyan);
  border-radius: 2px;
  transition: transform .28s var(--ease), opacity .28s var(--ease);
}

.page-faq .faq-item__icon::before {
  left: 0;
  top: 7px;
  width: 16px;
  height: 2px;
}

.page-faq .faq-item__icon::after {
  left: 7px;
  top: 0;
  width: 2px;
  height: 16px;
}

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

.page-faq .faq-item__a {
  border-top: 1px solid var(--line-steel);
  padding: 14px 18px 18px;
  font-size: 14px;
  line-height: 1.75;
  color: var(--text-muted);
}

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

.page-faq .faq-link {
  color: var(--accent-cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(0, 245, 212, .4);
  transition: border-color .2s var(--ease), color .2s var(--ease);
}

.page-faq .faq-link:hover,
.page-faq .faq-link:focus-visible {
  color: var(--text-main);
  border-bottom-color: var(--text-main);
  outline: none;
}

.page-faq .faq-inline {
  color: var(--accent-cyan);
  font-size: 13px;
  word-break: break-all;
}

/* 平板端区块的图文错位 */
.page-faq .faq-tablet__layout {
  display: grid;
  gap: clamp(18px, 3vw, 30px);
}

.page-faq .faq-tablet__media {
  margin: 0;
  align-self: start;
  border: 1px solid var(--line-steel);
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: linear-gradient(150deg, rgba(0, 245, 212, .1), rgba(27, 17, 69, .7));
}

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

.page-faq .faq-tablet__media .bs-media__cap {
  padding: 12px 16px 14px;
  font-size: 12px;
  line-height: 1.6;
  color: var(--text-muted);
}

/* 联系区块的收束条 */
.page-faq .faq-group--contact .faq-contact__cta {
  margin-top: 20px;
  display: grid;
  gap: 18px;
  padding: 22px 20px;
  border: 1px solid var(--line-steel);
  border-radius: var(--radius-lg);
  background:
    radial-gradient(120% 140% at 100% 0%, rgba(255, 90, 54, .18), transparent 62%),
    var(--bg-ink-2);
}

.page-faq .faq-contact__title {
  margin: 0;
  font-size: 18px;
  font-weight: 800;
  color: var(--text-main);
}

.page-faq .faq-contact__text {
  margin: 8px 0 0;
  font-size: 13.5px;
  line-height: 1.7;
  color: var(--text-muted);
}

.page-faq .faq-contact__actions {
  gap: 12px;
}

/* 平板与桌面布局 */
@media (min-width: 760px) {
  .page-faq .faq-hero__grid {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, .95fr);
  }

  .page-faq .faq-tablet__layout {
    grid-template-columns: minmax(0, 1fr) minmax(0, .82fr);
    align-items: start;
  }

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

@media (min-width: 1000px) {
  .page-faq .faq-body__grid {
    grid-template-columns: var(--faq-index-w) minmax(0, 1fr);
    gap: clamp(32px, 5vw, 68px);
    align-items: start;
  }

  .page-faq .faq-index {
    position: sticky;
    top: calc(var(--header-h) + 18px);
  }

  .page-faq .faq-hero__stats {
    gap: 10px 38px;
  }
}

@media (max-width: 480px) {
  .page-faq .faq-item__q {
    padding: 14px 14px;
    font-size: 14.5px;
  }

  .page-faq .faq-item__a {
    padding: 12px 14px 16px;
  }

  .page-faq .faq-hero__media .bs-media__cap,
  .page-faq .faq-tablet__media .bs-media__cap {
    padding: 10px 14px 12px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-item,
  .page-faq .faq-item__icon::before,
  .page-faq .faq-item__icon::after,
  .page-faq .faq-index__link,
  .page-faq .faq-link {
    transition: none;
  }
}
<<<END>>>