.page-faq {
  --faq-gap: 26px;
  --faq-line: rgba(108, 194, 74, .3);
  --faq-line-soft: rgba(126, 140, 119, .38);
  --faq-body: #D3E6C9;
  background: var(--ink);
  color: var(--paper);
  font-family: var(--sans);
  padding: 0 0 84px;
  overflow-x: hidden;
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  padding: 30px 0 0;
  background:
    radial-gradient(120% 92% at 90% -10%, rgba(245, 197, 24, .16) 0%, rgba(245, 197, 24, 0) 62%),
    radial-gradient(96% 84% at 4% 4%, rgba(108, 194, 74, .2) 0%, rgba(108, 194, 74, 0) 64%),
    repeating-linear-gradient(0deg, rgba(108, 194, 74, .07) 0 1px, transparent 1px 48px),
    repeating-linear-gradient(90deg, rgba(108, 194, 74, .07) 0 1px, transparent 1px 48px);
  border-bottom: 3px solid var(--faq-line);
}

.page-faq .breadcrumb {
  margin-bottom: 24px;
}

.page-faq .faq-hero-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 22px;
  align-items: end;
}

.page-faq .faq-title {
  margin: 8px 0 0;
  font-weight: 900;
  font-size: clamp(34px, 8vw, 64px);
  line-height: 1.04;
  letter-spacing: -.02em;
  text-wrap: balance;
}

.page-faq .faq-title em {
  display: block;
  font-style: normal;
  color: var(--core);
}

.page-faq .faq-lede {
  margin: 0;
  max-width: 58ch;
  font-size: clamp(15px, 1.7vw, 17px);
  line-height: 1.78;
  color: var(--faq-body);
}

.page-faq .faq-flag {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin: 20px 0 0;
  padding: 8px 16px;
  border: 2px solid var(--faq-line);
  border-radius: var(--r-pill);
  background: rgba(18, 51, 31, .8);
  font-size: 12px;
  letter-spacing: .08em;
  color: var(--kiwi-soft);
}

.page-faq .faq-flag .status-dot {
  flex: none;
}

.page-faq .faq-banner {
  margin-top: 34px;
  margin-bottom: -3px;
}

.page-faq .faq-banner img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 2 / 1;
  object-fit: cover;
  border-top: 3px solid var(--kiwi);
  border-bottom: 3px solid var(--kiwi);
  background: var(--panel);
  filter: saturate(1.06);
}

/* ---------- 主布局 ---------- */
.page-faq .faq-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--faq-gap);
  margin-top: 40px;
}

/* ---------- 坐标索引 ---------- */
.page-faq .faq-rail-inner {
  border: 2px solid var(--faq-line);
  border-radius: var(--r-l);
  background: linear-gradient(180deg, var(--panel-2), var(--panel));
  box-shadow: var(--shadow-soft);
  padding: 14px 14px 12px;
}

.page-faq .faq-rail-title {
  margin: 0 0 10px;
  font-family: var(--mono);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: .14em;
  color: var(--muted);
}

.page-faq .faq-rail-list {
  display: flex;
  flex-direction: row;
  gap: 8px;
  margin: 0;
  padding: 2px 0 6px;
  list-style: none;
  overflow-x: auto;
  scrollbar-width: thin;
  overflow-y: hidden;
}

.page-faq .faq-rail-link {
  display: flex;
  align-items: center;
  gap: 8px;
  white-space: nowrap;
  padding: 9px 14px;
  border: 1px solid var(--faq-line-soft);
  border-radius: var(--r-pill);
  color: var(--paper);
  font-size: 14px;
  text-decoration: none;
  transition: background .2s ease, color .2s ease, border-color .2s ease;
}

.page-faq .faq-rail-num {
  font-family: var(--mono);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: .08em;
  color: var(--kiwi);
}

.page-faq .faq-rail-link:hover,
.page-faq .faq-rail-link:focus-visible {
  background: rgba(108, 194, 74, .18);
  border-color: var(--kiwi);
  color: var(--signal);
  outline: none;
}

/* ---------- 分组面板 ---------- */
.page-faq .faq-groups {
  display: flex;
  flex-direction: column;
  gap: var(--faq-gap);
  min-width: 0;
}

.page-faq .faq-group {
  --acc: var(--kiwi);
  position: relative;
  padding: 22px 18px 20px;
  border: 3px solid var(--faq-line);
  border-radius: var(--r-l);
  background: linear-gradient(180deg, var(--panel), var(--panel-2));
  box-shadow: var(--shadow-hard);
  scroll-margin-top: 120px;
  min-width: 0;
}

.page-faq .faq-group--core { --acc: var(--core); }
.page-faq .faq-group--soft { --acc: var(--kiwi-soft); }
.page-faq .faq-group--cream { --acc: var(--core-soft); }

.page-faq .faq-group-head {
  display: flex;
  align-items: center;
  gap: 12px;
  padding-bottom: 14px;
  border-bottom: 2px dashed var(--faq-line);
}

.page-faq .faq-group-num {
  flex: none;
  padding: 4px 11px;
  border-radius: var(--r-pill);
  background: var(--acc);
  color: var(--ink);
  font-family: var(--mono);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: .14em;
}

.page-faq .faq-group-icon {
  flex: none;
  display: grid;
  place-items: center;
  width: 32px;
  height: 32px;
  border: 2px solid var(--acc);
  border-radius: 10px;
  color: var(--acc);
}

.page-faq .faq-group-icon svg {
  display: block;
  width: 17px;
  height: 17px;
}

.page-faq .faq-group-title {
  flex: 1;
  min-width: 0;
  margin: 0;
  font-size: clamp(19px, 2.6vw, 26px);
  font-weight: 900;
  letter-spacing: -.01em;
  color: var(--paper);
}

/* ---------- 配图 ---------- */
.page-faq .faq-figure {
  width: 100%;
  max-width: 220px;
  margin: 18px 0 4px;
  border: 3px solid var(--faq-line);
  border-radius: var(--r-m);
  overflow: hidden;
  background: var(--ink-deep);
  box-shadow: var(--shadow-soft);
}

.page-faq .faq-figure img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 1 / 1;
  object-fit: cover;
}

/* ---------- 折叠问答 ---------- */
.page-faq .qa-list {
  margin-top: 2px;
}

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

.page-faq .qa:last-of-type {
  border-bottom: 0;
}

.page-faq .qa-q {
  display: flex;
  align-items: baseline;
  gap: 12px;
  padding: 15px 4px 15px 0;
  list-style: none;
  cursor: pointer;
  font-size: clamp(15px, 1.75vw, 17px);
  font-weight: 500;
  line-height: 1.55;
  color: var(--paper);
  transition: color .2s ease;
}

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

.page-faq .qa-q:hover {
  color: var(--acc);
}

.page-faq .qa-q:focus-visible {
  outline: 3px solid var(--core);
  outline-offset: 3px;
  border-radius: var(--r-m);
}

.page-faq .qa-idx {
  flex: none;
  font-family: var(--mono);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: .04em;
  color: var(--muted);
}

.page-faq .qa-text {
  flex: 1;
  min-width: 0;
}

.page-faq .qa-mark {
  position: relative;
  flex: none;
  align-self: center;
  width: 20px;
  height: 20px;
  border: 2px solid var(--acc);
  border-radius: 6px;
  transition: background .2s ease;
}

.page-faq .qa-mark::before,
.page-faq .qa-mark::after {
  content: "";
  position: absolute;
  left: 50%;
  top: 50%;
  background: var(--acc);
  transform: translate(-50%, -50%);
  transition: transform .22s ease, opacity .22s ease;
}

.page-faq .qa-mark::before {
  width: 9px;
  height: 2px;
}

.page-faq .qa-mark::after {
  width: 2px;
  height: 9px;
}

.page-faq .qa[open] > .qa-q {
  color: var(--acc);
}

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

.page-faq .qa-a {
  margin: 0 0 16px 6px;
  padding: 0 6px 0 20px;
  border-left: 3px solid var(--acc);
  color: var(--faq-body);
  font-size: 15px;
  line-height: 1.78;
}

.page-faq .qa-a p {
  margin: 0;
  max-width: 62ch;
}

.page-faq .qa-a a {
  color: var(--acc);
  font-weight: 700;
  text-decoration: none;
  border-bottom: 1px solid currentColor;
}

.page-faq .qa-a a:hover,
.page-faq .qa-a a:focus-visible {
  color: var(--signal);
  outline: none;
}

/* ---------- 分组尾部提示 ---------- */
.page-faq .qa-foot {
  margin: 18px 0 0;
  padding-top: 14px;
  border-top: 1px dashed var(--faq-line-soft);
  font-size: 13px;
  line-height: 1.7;
  color: var(--muted);
}

.page-faq .qa-foot a {
  color: var(--acc);
  font-weight: 700;
  text-decoration: none;
  border-bottom: 1px solid currentColor;
  padding-bottom: 1px;
}

.page-faq .qa-foot a:hover,
.page-faq .qa-foot a:focus-visible {
  color: var(--signal);
  outline: none;
}

/* ---------- 桌面端 ---------- */
@media (min-width: 900px) {
  .page-faq {
    --faq-gap: 30px;
    padding-bottom: 110px;
  }

  .page-faq .faq-hero {
    padding-top: 42px;
  }

  .page-faq .faq-hero-grid {
    grid-template-columns: 5fr 7fr;
    gap: 48px;
  }

  .page-faq .faq-banner {
    margin-top: 44px;
  }

  .page-faq .faq-layout {
    margin-top: 52px;
  }

  .page-faq .faq-group {
    padding: 28px 30px 24px;
  }

  .page-faq .faq-figure {
    max-width: 260px;
  }
}

@media (min-width: 1000px) {
  .page-faq .faq-layout {
    grid-template-columns: 4fr 8fr;
    gap: 44px;
    align-items: start;
  }

  .page-faq .faq-rail {
    position: sticky;
    top: 104px;
  }

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

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

  .page-faq .faq-rail-link {
    border-color: transparent;
    border-radius: var(--r-m);
    padding: 10px 12px;
  }

  .page-faq .faq-rail-link:hover,
  .page-faq .faq-rail-link:focus-visible {
    border-color: var(--faq-line);
  }

  .page-faq .faq-group:nth-child(even) {
    margin-left: 22px;
  }
}

@media (min-width: 1280px) {
  .page-faq .faq-group {
    padding: 32px 36px 26px;
  }

  .page-faq .qa-a {
    padding-left: 26px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .qa-mark::before,
  .page-faq .qa-mark::after,
  .page-faq .qa-q,
  .page-faq .faq-rail-link,
  .page-faq .qa-mark {
    transition: none;
  }
}