.page-faq {
  padding-bottom: 76px;
}

.page-faq .page-faq__crumbs {
  padding-top: 20px;
  padding-bottom: 6px;
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  overflow: hidden;
  padding: 24px 0 44px;
  border-bottom: 1px solid var(--line-soft);
}

.page-faq .faq-hero::before {
  content: "";
  position: absolute;
  inset: -14% -8% 0;
  background:
    radial-gradient(58% 86% at 84% 4%, rgba(47, 227, 210, .17), transparent 66%),
    radial-gradient(54% 78% at -6% 94%, rgba(122, 107, 196, .19), transparent 70%);
  pointer-events: none;
}

.page-faq .faq-hero__inner {
  position: relative;
  display: grid;
  gap: 28px;
}

.page-faq .faq-hero__title {
  margin: 14px 0 0;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(29px, 5vw, 54px);
  line-height: 1.16;
  letter-spacing: -.02em;
  color: var(--mist);
  text-wrap: balance;
}

.page-faq .faq-hero__lead {
  margin: 18px 0 0;
  max-width: 56ch;
  font-size: 16px;
  font-weight: 400;
  line-height: 1.8;
  color: var(--silent);
}

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

.page-faq .faq-hero__media {
  margin: 0;
  border: 1px solid var(--line-cyan);
  border-radius: var(--radius);
  background: var(--night);
  overflow: hidden;
  box-shadow: 0 26px 62px -34px rgba(47, 227, 210, .5);
}

.page-faq .faq-hero__media .media__frame img {
  width: 100%;
  object-fit: cover;
  aspect-ratio: 2 / 1;
}

.page-faq .faq-group__media {
  margin: 0;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--night);
  overflow: hidden;
}

.page-faq .faq-group__media .media__frame img {
  width: 100%;
  object-fit: cover;
  aspect-ratio: 10 / 7;
}

.page-faq .media__cap {
  display: block;
  padding: 9px 12px 10px;
  border-top: 1px solid var(--line-soft);
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: .06em;
  color: var(--silent);
}

@media (min-width: 900px) {
  .page-faq .faq-hero {
    padding: 34px 0 58px;
  }
  .page-faq .faq-hero__inner {
    grid-template-columns: minmax(0, 1.08fr) minmax(0, .92fr);
    align-items: center;
    gap: 54px;
  }
}

/* ---------- 主体骨架 ---------- */
.page-faq .faq-body {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 32px;
  padding-top: 44px;
}

.page-faq .faq-stream {
  display: grid;
  gap: 54px;
  min-width: 0;
}

.page-faq .faq-group {
  min-width: 0;
  scroll-margin-top: calc(var(--header-h) + 26px);
}

.page-faq .faq-group + .faq-group {
  padding-top: 6px;
  border-top: 1px dashed var(--line-soft);
}

.page-faq .faq-group__top {
  display: grid;
  gap: 18px;
  margin-bottom: 22px;
}

.page-faq .faq-group__title {
  margin: 12px 0 0;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(21px, 3vw, 31px);
  line-height: 1.3;
  letter-spacing: -.02em;
  color: var(--mist);
}

.page-faq .faq-group__desc {
  margin: 10px 0 0;
  max-width: 46ch;
  font-size: 15px;
  line-height: 1.72;
  color: var(--silent);
}

@media (min-width: 760px) {
  .page-faq .faq-group__top--split {
    grid-template-columns: minmax(0, 1fr) minmax(0, .74fr);
    align-items: end;
    gap: 34px;
  }
}

/* ---------- 折叠面板 ---------- */
.page-faq .faq-list {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 12px;
}

.page-faq .faq-item {
  min-width: 0;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: linear-gradient(180deg, rgba(16, 24, 50, .78), rgba(10, 14, 31, .84));
  transition: border-color .22s var(--ease), box-shadow .22s var(--ease);
}

.page-faq .faq-item:hover {
  border-color: var(--line-cyan);
}

.page-faq .faq-item[open] {
  border-color: var(--line-cyan);
  box-shadow: inset 0 0 0 1px rgba(47, 227, 210, .12);
}

.page-faq .faq-item__q {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  gap: 12px;
  align-items: start;
  padding: 15px 16px;
  cursor: pointer;
  list-style: none;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 15.5px;
  line-height: 1.55;
  letter-spacing: -.01em;
  color: var(--mist);
  transition: color .2s var(--ease);
}

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

.page-faq .faq-item__q:hover {
  color: var(--cyan);
}

.page-faq .faq-item__q:focus-visible {
  outline: 1px solid var(--cyan);
  outline-offset: -2px;
}

.page-faq .faq-item__num {
  padding-top: 3px;
  font-family: var(--font-mono);
  font-size: 11.5px;
  font-weight: 500;
  letter-spacing: .1em;
  color: var(--cyan);
}

.page-faq .faq-item__mark {
  position: relative;
  flex: none;
  width: 12px;
  height: 12px;
  margin-top: 5px;
}

.page-faq .faq-item__mark::before,
.page-faq .faq-item__mark::after {
  content: "";
  position: absolute;
  left: 50%;
  top: 50%;
  background: var(--violet);
  transition: transform .22s var(--ease), background-color .22s var(--ease);
}

.page-faq .faq-item__mark::before {
  width: 12px;
  height: 1.5px;
  transform: translate(-50%, -50%);
}

.page-faq .faq-item__mark::after {
  width: 1.5px;
  height: 12px;
  transform: translate(-50%, -50%);
}

.page-faq .faq-item:hover .faq-item__mark::before,
.page-faq .faq-item[open] .faq-item__mark::before {
  background: var(--cyan);
}

.page-faq .faq-item[open] .faq-item__mark::after {
  transform: translate(-50%, -50%) scaleY(0);
}

.page-faq .faq-item__a {
  padding: 0 18px 17px 49px;
  font-size: 15px;
  font-weight: 400;
  line-height: 1.8;
  color: rgba(232, 236, 245, .82);
  animation: faq-fade .22s var(--ease) both;
}

.page-faq .faq-item__a a {
  color: var(--cyan);
  text-decoration: underline;
  text-underline-offset: 3px;
  text-decoration-color: rgba(47, 227, 210, .42);
}

.page-faq .faq-item__a a:hover {
  text-decoration-color: var(--cyan);
}

@keyframes faq-fade {
  from {
    opacity: 0;
    transform: translateY(-5px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@media (min-width: 860px) {
  .page-faq .faq-list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 14px 16px;
    align-items: start;
  }
  .page-faq .faq-list > .faq-item:nth-child(even) {
    margin-top: 26px;
  }
}

/* ---------- 求助区块 ---------- */
.page-faq .faq-group--help {
  padding-bottom: 6px;
}

.page-faq .faq-help__cta {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 26px;
  padding-top: 22px;
  border-top: 1px dashed var(--line);
}

/* ---------- 目录 ---------- */
.page-faq .faq-toc {
  min-width: 0;
  padding: 14px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: rgba(16, 24, 50, .62);
}

.page-faq .faq-toc__title {
  margin: 0 0 10px;
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: .16em;
  color: var(--silent);
  text-transform: uppercase;
}

.page-faq .faq-toc__list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-faq .faq-toc__link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 7px 11px;
  border: 1px solid var(--line-soft);
  border-radius: var(--radius);
  font-size: 13px;
  color: var(--silent);
  transition: color .2s var(--ease), border-color .2s var(--ease), background-color .2s var(--ease);
}

.page-faq .faq-toc__link:hover {
  color: var(--cyan);
  border-color: var(--line-cyan);
  background: rgba(47, 227, 210, .07);
}

.page-faq .faq-toc__num {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .06em;
  color: var(--gold);
}

@media (min-width: 1080px) {
  .page-faq .faq-body {
    grid-template-columns: minmax(0, 1fr) 226px;
    gap: 46px;
    align-items: start;
  }
  .page-faq .faq-toc {
    position: sticky;
    top: calc(var(--header-h) + 26px);
    padding: 16px 14px;
  }
  .page-faq .faq-toc__list {
    display: grid;
    gap: 2px;
  }
  .page-faq .faq-toc__link {
    padding: 8px 10px;
    border-color: transparent;
  }
}