.page-faq {
  --faq-rail: 216px;
  --faq-gap: 48px;
  --faq-accent-purple: #8B6BD0;
  --faq-accent-wine: #C15A6E;
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  padding: 28px 0 8px;
  overflow: hidden;
}

.page-faq .faq-hero::after {
  content: "";
  position: absolute;
  top: -140px;
  right: -160px;
  width: 460px;
  height: 460px;
  background: radial-gradient(circle at 50% 50%, rgba(198, 242, 78, 0.11), transparent 68%);
  pointer-events: none;
}

.page-faq .faq-hero .container {
  position: relative;
  z-index: 1;
}

.page-faq .faq-hero__title {
  margin: 14px 0 0;
  font-family: var(--font-display);
  font-size: clamp(36px, 7.5vw, 78px);
  font-weight: 400;
  line-height: 1.04;
  letter-spacing: -0.02em;
  color: var(--ivory);
  max-width: 12em;
}

.page-faq .faq-hero__lede {
  margin: 20px 0 0;
  max-width: 42em;
  font-size: 17px;
  line-height: 1.8;
  color: var(--muted);
}

.page-faq .faq-hero__stats {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: 20px 16px;
  margin-top: 34px;
  padding-top: 24px;
  border-top: 1px solid var(--line-soft);
}

.page-faq .stat__value {
  display: block;
  font-family: var(--font-data);
  font-size: clamp(22px, 3.4vw, 28px);
  font-weight: 600;
  letter-spacing: -0.01em;
  color: var(--lime);
}

.page-faq .stat__label {
  display: block;
  margin-top: 8px;
  font-size: 13px;
  line-height: 1.55;
  color: var(--muted);
}

/* ---------- 首屏下方视觉带 ---------- */
.page-faq .faq-visual {
  margin-top: 36px;
}

.page-faq .faq-visual__frame {
  border: 1px solid var(--line-soft);
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--panel-2);
}

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

.page-faq .faq-visual__cap {
  margin: 12px 0 0;
  font-size: 13px;
  line-height: 1.65;
  color: var(--muted);
}

/* ---------- 主体两栏 ---------- */
.page-faq .faq-body__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 28px;
}

/* 主题索引：移动端横向胶囊 */
.page-faq .faq-index {
  min-width: 0;
}

.page-faq .faq-index__title {
  margin: 0 0 12px;
  font-size: 11px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--muted);
}

.page-faq .faq-index__list {
  list-style: none;
  margin: 0;
  padding: 0 0 4px;
  display: flex;
  gap: 8px;
  overflow-x: auto;
  scrollbar-width: none;
  -webkit-overflow-scrolling: touch;
}

.page-faq .faq-index__list::-webkit-scrollbar {
  display: none;
}

.page-faq .faq-index__list > li {
  flex: 0 0 auto;
}

.page-faq .faq-index__link {
  display: flex;
  align-items: center;
  gap: 9px;
  padding: 10px 16px;
  border: 1px solid var(--line-soft);
  border-radius: var(--pill);
  background: rgba(14, 42, 34, 0.62);
  color: var(--ivory);
  font-size: 14px;
  line-height: 1.3;
  text-decoration: none;
  white-space: nowrap;
  transition: border-color 0.2s ease, background 0.2s ease, color 0.2s ease;
}

.page-faq .faq-index__link:hover,
.page-faq .faq-index__link:focus-visible {
  border-color: var(--lime);
  background: var(--lime-soft);
  color: var(--lime);
  outline: none;
}

.page-faq .faq-index__num {
  font-family: var(--font-data);
  font-size: 11px;
  color: var(--muted);
  transition: color 0.2s ease;
}

.page-faq .faq-index__link:hover .faq-index__num,
.page-faq .faq-index__link:focus-visible .faq-index__num {
  color: var(--lime);
}

/* ---------- 问答分组 ---------- */
.page-faq .faq-groups {
  display: flex;
  flex-direction: column;
  gap: 56px;
  min-width: 0;
}

.page-faq .faq-group {
  --faq-accent: var(--lime);
  scroll-margin-top: 96px;
  min-width: 0;
}

.page-faq #faq-read {
  --faq-accent: var(--orange);
}

.page-faq #faq-partner {
  --faq-accent: var(--faq-accent-purple);
}

.page-faq #faq-account {
  --faq-accent: var(--faq-accent-wine);
}

.page-faq .faq-group__head {
  display: flex;
  align-items: baseline;
  gap: 14px;
  padding-bottom: 14px;
  border-bottom: 1px solid var(--line-soft);
}

.page-faq .faq-group__num {
  flex: none;
  font-family: var(--font-data);
  font-size: 13px;
  letter-spacing: 0.1em;
  color: var(--faq-accent);
}

.page-faq .faq-group__title {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(23px, 4vw, 34px);
  font-weight: 500;
  letter-spacing: -0.01em;
  line-height: 1.2;
  color: var(--ivory);
}

.page-faq .faq-group__lede {
  margin: 16px 0 0;
  max-width: 44em;
  font-size: 15px;
  line-height: 1.78;
  color: var(--muted);
}

/* ---------- 组内配图 ---------- */
.page-faq .faq-group__fig {
  margin: 24px 0 0;
  border: 1px solid var(--line-soft);
  border-radius: var(--radius-sm);
  overflow: hidden;
  background: var(--panel-2);
}

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

.page-faq .faq-group__fig figcaption {
  padding: 12px 16px;
  font-size: 13px;
  line-height: 1.6;
  color: var(--muted);
  background: rgba(11, 20, 16, 0.55);
}

/* ---------- 问题条目 ---------- */
.page-faq .faq-list {
  margin-top: 6px;
  display: flex;
  flex-direction: column;
}

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

.page-faq .faq-item__q {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  align-items: start;
  gap: 14px;
  padding: 20px 0;
  cursor: pointer;
  list-style: none;
  color: var(--ivory);
  font-size: 16px;
  font-weight: 500;
  line-height: 1.62;
  transition: color 0.2s ease;
}

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

.page-faq .faq-item__q::marker {
  content: "";
}

.page-faq .faq-item__q:hover,
.page-faq .faq-item__q:focus-visible {
  color: var(--faq-accent);
  outline: none;
}

.page-faq .faq-item__num {
  padding-top: 5px;
  font-family: var(--font-data);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--muted);
  transition: color 0.2s ease;
}

.page-faq .faq-item[open] .faq-item__num {
  color: var(--faq-accent);
}

.page-faq .faq-item__sign {
  position: relative;
  flex: none;
  width: 22px;
  height: 22px;
  margin-top: 2px;
  border: 1px solid var(--line);
  border-radius: 50%;
  transition: background 0.2s ease, border-color 0.2s ease;
}

.page-faq .faq-item__sign::before,
.page-faq .faq-item__sign::after {
  content: "";
  position: absolute;
  left: 50%;
  top: 50%;
  width: 9px;
  height: 1.5px;
  background: var(--muted);
  transform: translate(-50%, -50%);
  transition: opacity 0.2s ease, background 0.2s ease, transform 0.2s ease;
}

.page-faq .faq-item__sign::after {
  transform: translate(-50%, -50%) rotate(90deg);
}

.page-faq .faq-item[open] .faq-item__sign {
  background: var(--faq-accent);
  border-color: var(--faq-accent);
}

.page-faq .faq-item[open] .faq-item__sign::before,
.page-faq .faq-item[open] .faq-item__sign::after {
  background: var(--ink);
}

.page-faq .faq-item[open] .faq-item__sign::after {
  transform: translate(-50%, -50%) rotate(0deg);
  opacity: 0;
}

.page-faq .faq-item__a {
  padding: 0 0 22px 34px;
  font-size: 15px;
  line-height: 1.82;
  color: var(--muted);
}

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

.page-faq .faq-item__a strong {
  color: var(--ivory);
  font-weight: 600;
  border-bottom: 1px solid var(--faq-accent);
  padding-bottom: 1px;
}

/* ---------- 其他问题面板 ---------- */
.page-faq .faq-help {
  margin-top: 22px;
  padding: 26px 22px;
  border: 1px solid var(--line-soft);
  border-radius: var(--radius);
  background: linear-gradient(145deg, rgba(198, 242, 78, 0.1), rgba(14, 42, 34, 0.75) 58%, rgba(11, 20, 16, 0.9));
}

.page-faq .faq-help__lede {
  margin: 0;
  font-size: 15px;
  line-height: 1.8;
  color: var(--ivory);
}

.page-faq .faq-help__list {
  list-style: none;
  margin: 18px 0 0;
  padding: 0;
  display: grid;
  gap: 11px;
}

.page-faq .faq-help__list li {
  position: relative;
  padding-left: 22px;
  font-size: 15px;
  line-height: 1.7;
  color: var(--ivory);
}

.page-faq .faq-help__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 10px;
  width: 10px;
  height: 2px;
  border-radius: 2px;
  background: var(--lime);
}

.page-faq .faq-help__note {
  margin: 20px 0 0;
  padding-top: 18px;
  border-top: 1px solid var(--line-soft);
  font-size: 14px;
  line-height: 1.8;
  color: var(--muted);
}

.page-faq .faq-help__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 22px;
}

/* ---------- 平板与桌面 ---------- */
@media (min-width: 768px) {
  .page-faq .faq-group__fig img {
    height: 260px;
  }
}

@media (min-width: 900px) {
  .page-faq .faq-body__grid {
    grid-template-columns: var(--faq-rail) minmax(0, 1fr);
    gap: var(--faq-gap);
    align-items: start;
  }

  .page-faq .faq-index {
    position: sticky;
    top: 32px;
  }

  .page-faq .faq-index__list {
    flex-direction: column;
    gap: 4px;
    overflow: visible;
    padding-bottom: 0;
  }

  .page-faq .faq-index__list > li {
    flex: none;
    width: 100%;
  }

  .page-faq .faq-index__link {
    border-color: transparent;
    border-radius: var(--radius-sm);
    background: transparent;
    padding: 10px 12px;
    white-space: normal;
    font-size: 14px;
  }

  .page-faq .faq-index__link:hover,
  .page-faq .faq-index__link:focus-visible {
    border-color: var(--line-soft);
    background: rgba(198, 242, 78, 0.06);
  }

  .page-faq .faq-item__q {
    font-size: 17px;
    padding: 22px 0;
  }

  .page-faq .faq-item__a {
    padding: 0 48px 26px 34px;
  }

  .page-faq .faq-help {
    padding: 32px 30px;
  }
}

@media (min-width: 1100px) {
  .page-faq .faq-visual__frame img {
    max-height: 380px;
  }
}

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