.page-faq {
  --faq-fold-radius: 24px;
  --faq-stream-gap: clamp(56px, 7vw, 96px);
}

/* ---------- 首屏框景 ---------- */
.page-faq .faq-hero__frame {
  position: relative;
  padding: clamp(26px, 4.2vw, 56px);
  border: 1px solid var(--line-soft);
  border-radius: var(--radius-lg);
  background:
    radial-gradient(120% 90% at 92% 0%, rgba(69, 217, 198, 0.09) 0%, transparent 58%),
    linear-gradient(160deg, var(--ink-800) 0%, var(--ink-900) 68%);
  overflow: hidden;
}

.page-faq .faq-hero__frame::before,
.page-faq .faq-hero__frame::after {
  content: "";
  position: absolute;
  left: 14px;
  right: 14px;
  height: 6px;
  background-image: repeating-linear-gradient(90deg, var(--gold) 0 1px, transparent 1px 26px);
  opacity: 0.42;
  pointer-events: none;
}

.page-faq .faq-hero__frame::before {
  top: 14px;
}

.page-faq .faq-hero__frame::after {
  bottom: 14px;
}

.page-faq .faq-hero__grid {
  display: grid;
  grid-template-columns: minmax(0, 1.12fr) minmax(0, 1fr);
  gap: clamp(24px, 4vw, 56px);
  align-items: center;
}

.page-faq .faq-hero__copy h1 {
  margin: 14px 0 0;
  font-family: var(--font-heading);
  font-weight: 900;
  font-size: clamp(2rem, 4.6vw, 3.4rem);
  line-height: 1.14;
  letter-spacing: -0.02em;
  color: var(--porcelain);
}

.page-faq .faq-hero__copy .lede {
  margin-top: 20px;
  max-width: 46ch;
  color: var(--mist);
  font-size: 1.0625rem;
  line-height: 1.75;
}

.page-faq .faq-num {
  font-family: var(--font-mono);
  font-weight: 700;
  font-variant-numeric: tabular-nums;
  color: var(--cyan);
}

.page-faq .faq-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 30px;
}

.page-faq .faq-hero__media {
  margin: 0;
}

/* ---------- 主从栅格：左内容 / 右索引 ---------- */
.page-faq .faq-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 188px;
  gap: 64px;
  align-items: start;
}

.page-faq .faq-layout__stream {
  min-width: 0;
}

.page-faq .faq-block + .faq-block {
  margin-top: var(--faq-stream-gap);
}

.page-faq .faq-block__head {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 180px;
  gap: clamp(20px, 3vw, 36px);
  align-items: center;
}

.page-faq .faq-block__art {
  margin: 0;
}

.page-faq .faq-list {
  display: grid;
  gap: 12px;
  margin-top: 26px;
}

/* ---------- 三条直达卡片 ---------- */
.page-faq .faq-quick__grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 16px;
  margin-top: 28px;
}

.page-faq .faq-quick__card {
  position: relative;
  display: block;
  padding: 26px 22px 22px;
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  background: linear-gradient(165deg, var(--ink-700) 0%, var(--ink-800) 100%);
  text-decoration: none;
  color: var(--porcelain);
  transition: border-color 0.24s var(--ease), transform 0.24s var(--ease);
}

.page-faq .faq-quick__card:hover,
.page-faq .faq-quick__card:focus-visible {
  border-color: var(--gold);
  transform: translateY(-2px);
}

.page-faq .faq-quick__mark {
  position: absolute;
  top: 22px;
  right: 22px;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--gold);
  box-shadow: 0 0 0 4px rgba(201, 162, 74, 0.14);
}

.page-faq .faq-quick__num {
  display: inline-block;
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 0.8125rem;
  letter-spacing: 0.12em;
  color: var(--gold);
}

.page-faq .faq-quick__title {
  margin: 12px 0 0;
  font-family: var(--font-heading);
  font-weight: 800;
  font-size: 1.125rem;
  line-height: 1.35;
  color: var(--porcelain);
}

.page-faq .faq-quick__text {
  margin: 10px 0 0;
  font-size: 0.9375rem;
  line-height: 1.7;
  color: var(--mist);
}

.page-faq .faq-quick__go {
  display: inline-block;
  margin-top: 18px;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.1em;
  color: var(--cyan);
}

/* ---------- 折叠问答 ---------- */
.page-faq .fold {
  margin: 0;
  border: 1px solid var(--line);
  border-left: 2px solid var(--cyan);
  border-radius: var(--faq-fold-radius);
  background: rgba(10, 31, 24, 0.7);
  overflow: hidden;
  transition: background 0.24s var(--ease), border-color 0.24s var(--ease);
}

.page-faq .fold[open] {
  background: var(--ink-700);
  border-left-color: var(--gold);
}

.page-faq .fold__head {
  position: relative;
  padding: 18px 54px 18px 22px;
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 1rem;
  line-height: 1.55;
  color: var(--porcelain);
  cursor: pointer;
  list-style: none;
  transition: color 0.24s var(--ease);
}

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

.page-faq .fold__head:hover {
  color: var(--gold-soft);
}

.page-faq .fold__head::after {
  content: "";
  position: absolute;
  top: 50%;
  right: 24px;
  width: 9px;
  height: 9px;
  margin-top: -6px;
  border-right: 1.5px solid var(--gold);
  border-bottom: 1.5px solid var(--gold);
  transform: rotate(45deg);
  transition: transform 0.24s var(--ease), margin-top 0.24s var(--ease);
}

.page-faq .fold[open] .fold__head::after {
  transform: rotate(-135deg);
  margin-top: -2px;
}

.page-faq .fold__body {
  padding: 0 24px 20px 22px;
  border-top: 1px solid var(--line);
  padding-top: 16px;
  margin-top: 2px;
  font-size: 0.9375rem;
  line-height: 1.75;
  color: var(--mist);
}

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

.page-faq .fold__body p + p {
  margin-top: 10px;
}

.page-faq .fold__body .link-underline {
  color: var(--cyan);
}

/* ---------- 人工帮助 ---------- */
.page-faq .faq-human__panel {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: clamp(20px, 3vw, 40px);
  align-items: center;
  margin-top: 26px;
  padding: clamp(22px, 3vw, 34px);
  border: 1px solid var(--line-soft);
  border-radius: var(--radius-lg);
  background: linear-gradient(150deg, rgba(18, 48, 39, 0.9) 0%, rgba(4, 18, 13, 0.92) 100%);
}

.page-faq .faq-human__text p {
  margin: 0;
  color: var(--mist);
  font-size: 0.9375rem;
  line-height: 1.75;
}

.page-faq .faq-human__text p + p {
  margin-top: 10px;
}

.page-faq .faq-human__actions {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

/* ---------- 右侧悬浮索引 ---------- */
.page-faq .faq-index {
  position: sticky;
  top: 118px;
  align-self: start;
}

.page-faq .faq-index__title {
  margin: 0 0 16px;
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  font-weight: 600;
  letter-spacing: 0.2em;
  color: var(--gold);
}

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

.page-faq .faq-index__list::before {
  content: "";
  position: absolute;
  left: 5px;
  top: 10px;
  bottom: 10px;
  width: 1px;
  background: var(--line);
}

.page-faq .faq-index__item + .faq-index__item {
  margin-top: 14px;
}

.page-faq .faq-index__item a {
  position: relative;
  display: flex;
  gap: 12px;
  align-items: flex-start;
  font-size: 0.8125rem;
  line-height: 1.45;
  color: var(--mist);
  text-decoration: none;
  transition: color 0.24s var(--ease);
}

.page-faq .faq-index__item a:hover,
.page-faq .faq-index__item a:focus-visible {
  color: var(--gold-soft);
}

.page-faq .faq-index__dot {
  position: relative;
  z-index: 1;
  flex: 0 0 auto;
  width: 11px;
  height: 11px;
  margin-top: 3px;
  border: 1px solid var(--gold);
  border-radius: 50%;
  background: var(--ink-900);
  transition: background 0.24s var(--ease), box-shadow 0.24s var(--ease);
}

.page-faq .faq-index__item a:hover .faq-index__dot,
.page-faq .faq-index__item a:focus-visible .faq-index__dot {
  background: var(--gold);
  box-shadow: 0 0 0 3px rgba(201, 162, 74, 0.18);
}

/* ---------- 响应式 ---------- */
@media (max-width: 1080px) {
  .page-faq .faq-layout {
    grid-template-columns: minmax(0, 1fr);
    gap: 0;
  }

  .page-faq .faq-index {
    position: static;
    order: -1;
    margin-bottom: 32px;
  }

  .page-faq .faq-index__title {
    margin-bottom: 10px;
  }

  .page-faq .faq-index__list {
    display: flex;
    gap: 8px;
    overflow-x: auto;
    padding-bottom: 6px;
    -webkit-overflow-scrolling: touch;
  }

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

  .page-faq .faq-index__item + .faq-index__item {
    margin-top: 0;
  }

  .page-faq .faq-index__item a {
    padding: 8px 14px;
    border: 1px solid var(--line-soft);
    border-radius: 999px;
    white-space: nowrap;
    font-size: 0.8125rem;
  }

  .page-faq .faq-index__dot {
    display: none;
  }
}

@media (max-width: 860px) {
  .page-faq .faq-hero__grid {
    grid-template-columns: minmax(0, 1fr);
  }

  .page-faq .faq-hero__copy .lede {
    max-width: none;
  }

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

  .page-faq .faq-block__art {
    max-width: 320px;
  }

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

  .page-faq .faq-human__actions {
    flex-direction: row;
    flex-wrap: wrap;
  }
}

@media (max-width: 560px) {
  .page-faq .faq-quick__grid {
    grid-template-columns: minmax(0, 1fr);
  }

  .page-faq .faq-quick__card {
    padding: 22px 18px 20px;
  }

  .page-faq .fold__head {
    padding: 16px 46px 16px 18px;
    font-size: 0.9375rem;
  }

  .page-faq .fold__head::after {
    right: 20px;
  }

  .page-faq .fold__body {
    padding: 14px 18px 18px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-quick__card,
  .page-faq .fold,
  .page-faq .fold__head::after,
  .page-faq .faq-index__dot {
    transition: color 0.2s linear, background-color 0.2s linear, border-color 0.2s linear;
  }

  .page-faq .faq-quick__card:hover {
    transform: none;
  }
}