.page-faq {
  background:
    radial-gradient(110% 55% at 92% 0%, rgba(63, 242, 200, 0.09), transparent 58%),
    radial-gradient(85% 45% at 0% 92%, rgba(122, 92, 255, 0.07), transparent 62%);
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  overflow: hidden;
  padding-block: clamp(20px, 4vw, 40px) clamp(28px, 5vw, 48px);
  border-bottom: 4px solid var(--line);
}

.page-faq .faq-hero::after {
  content: "";
  position: absolute;
  right: -120px;
  bottom: -160px;
  width: 340px;
  height: 340px;
  border: 1px dashed var(--line);
  border-radius: 50%;
  pointer-events: none;
}

.page-faq .faq-hero__inner {
  position: relative;
  z-index: 1;
  display: grid;
  gap: 26px;
}

@media (min-width: 880px) {
  .page-faq .faq-hero__inner {
    grid-template-columns: minmax(0, 1fr) 300px;
    align-items: end;
    gap: 44px;
  }
}

.page-faq .page-title {
  margin: 10px 0 0;
  font-size: clamp(27px, 5vw, 50px);
  line-height: 1.14;
  letter-spacing: -0.01em;
  color: var(--paper);
}

.page-faq .faq-hero .lede {
  margin: 14px 0 0;
  max-width: 58ch;
  font-size: 16px;
  line-height: 1.8;
  color: var(--muted);
}

.page-faq .faq-hero__meta {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 22px 0 0;
  padding: 0;
  list-style: none;
}

.page-faq .faq-metachip {
  display: inline-flex;
  align-items: baseline;
  gap: 6px;
  padding: 6px 13px;
  border: 2px solid var(--line);
  border-radius: var(--r-pill);
  font-size: 13px;
  color: var(--mist);
  background: rgba(22, 71, 58, 0.42);
}

.page-faq .faq-metachip b {
  font-family: var(--font-narrow);
  font-variant-numeric: tabular-nums;
  font-size: 16px;
  color: var(--neon);
}

.page-faq .faq-hero__media {
  margin: 0;
  box-shadow: var(--shadow-hard);
}

/* ---------- 主布局 ---------- */
.page-faq .faq-layout {
  display: grid;
  gap: clamp(24px, 4vw, 40px);
  padding-block: clamp(30px, 5vw, 56px) clamp(44px, 8vw, 88px);
}

@media (min-width: 920px) {
  .page-faq .faq-layout {
    grid-template-columns: 232px minmax(0, 1fr);
    align-items: start;
    gap: 48px;
  }
}

/* ---------- 左侧分组索引 ---------- */
.page-faq .faq-index__title {
  margin: 0 0 10px;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.18em;
  color: var(--muted);
}

.page-faq .faq-index__list {
  display: flex;
  gap: 8px;
  margin: 0;
  padding: 0 0 6px;
  list-style: none;
  overflow-x: auto;
  scrollbar-width: none;
}

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

.page-faq .faq-index__link {
  display: block;
  white-space: nowrap;
  padding: 10px 12px;
  border-left: 2px solid var(--line);
  border-bottom: 0;
  border-radius: var(--r);
  font-size: 14px;
  font-weight: 600;
  color: var(--muted);
  text-decoration: none;
  background: rgba(22, 71, 58, 0.34);
  transition: color 0.2s ease, border-color 0.2s ease, background 0.2s ease;
}

.page-faq .faq-index__link:hover {
  color: var(--paper);
  border-left-color: var(--line-strong);
}

.page-faq .faq-index__link[data-active] {
  color: var(--paper);
  border-left-color: var(--neon);
  border-left-width: 4px;
  background: rgba(22, 71, 58, 0.72);
}

@media (max-width: 919px) {
  .page-faq .faq-index__link,
  .page-faq .faq-index__link[data-active] {
    border-left-width: 0;
    border-bottom: 2px solid var(--line);
  }

  .page-faq .faq-index__link[data-active] {
    border-bottom: 4px solid var(--neon);
    color: var(--paper);
  }
}

@media (min-width: 920px) {
  .page-faq .faq-index {
    position: sticky;
    top: 104px;
  }

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

  .page-faq .faq-index__link {
    border-bottom: 0;
    border-radius: 0 var(--r) var(--r) 0;
    padding-left: 14px;
  }

  .page-faq .faq-index__link[data-active] {
    padding-left: 16px;
  }
}

/* ---------- 分组 ---------- */
.page-faq .faq-group {
  scroll-margin-top: 122px;
}

.page-faq .faq-group + .faq-group,
.page-faq .faq-band + .faq-group {
  margin-top: clamp(40px, 6vw, 68px);
}

.page-faq .faq-group__head {
  display: grid;
  gap: 6px;
  padding-bottom: 14px;
  margin-bottom: 18px;
  border-bottom: 4px solid var(--line);
}

.page-faq .faq-group__num {
  font-family: var(--font-narrow);
  font-variant-numeric: tabular-nums;
  font-size: 12px;
  letter-spacing: 0.2em;
  color: var(--amber);
}

.page-faq .faq-group__title {
  margin: 0;
  font-size: clamp(20px, 3vw, 27px);
  font-weight: 800;
  line-height: 1.3;
  color: var(--paper);
}

.page-faq .faq-group__desc {
  margin: 0;
  max-width: 62ch;
  font-size: 14px;
  line-height: 1.7;
  color: var(--muted);
}

/* ---------- 手风琴条目 ---------- */
.page-faq .faq-item {
  border-style: solid;
  border-color: var(--line);
  border-width: 2px 2px 2px 0;
  border-radius: 0 var(--r) var(--r) 0;
  background: rgba(22, 71, 58, 0.32);
  box-shadow: inset 2px 0 0 0 rgba(155, 246, 224, 0.32);
  transition: background 0.25s ease, border-color 0.25s ease, box-shadow 0.25s ease;
}

.page-faq .faq-item + .faq-item {
  margin-top: 8px;
}

.page-faq .faq-item[open] {
  border-color: var(--line-strong);
  background: var(--panel-deep);
  box-shadow: inset 4px 0 0 0 var(--neon);
}

.page-faq .faq-item summary {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  min-height: 48px;
  padding: 13px 16px 13px 16px;
  cursor: pointer;
  list-style: none;
  font-weight: 700;
  color: var(--paper);
  transition: color 0.2s ease;
}

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

.page-faq .faq-item summary:hover {
  color: var(--neon);
}

.page-faq .faq-item summary:focus-visible {
  outline: 2px solid var(--neon);
  outline-offset: -4px;
}

.page-faq .faq-q {
  flex: 1 1 auto;
  font-size: 15px;
  line-height: 1.62;
}

@media (min-width: 640px) {
  .page-faq .faq-q {
    font-size: 16px;
  }
}

.page-faq .faq-q__num {
  display: inline-block;
  min-width: 26px;
  margin-right: 4px;
  font-family: var(--font-narrow);
  font-variant-numeric: tabular-nums;
  font-size: 13px;
  letter-spacing: 0.06em;
  color: var(--mist);
}

.page-faq .faq-mark {
  position: relative;
  flex: 0 0 auto;
  width: 22px;
  height: 22px;
  margin-top: 1px;
  border: 2px solid var(--line-strong);
  border-radius: var(--r);
  transition: border-color 0.25s ease, background 0.25s ease;
}

.page-faq .faq-mark::before,
.page-faq .faq-mark::after {
  content: "";
  position: absolute;
  left: 4px;
  right: 4px;
  top: 50%;
  height: 2px;
  margin-top: -1px;
  background: var(--neon);
  transition: transform 0.25s ease;
}

.page-faq .faq-mark::after {
  transform: rotate(90deg);
}

.page-faq .faq-item[open] .faq-mark {
  border-color: var(--neon);
  background: rgba(63, 242, 200, 0.14);
}

.page-faq .faq-item[open] .faq-mark::after {
  transform: rotate(0deg);
}

.page-faq .faq-a {
  margin: 0 16px 14px;
  padding-top: 12px;
  border-top: 1px dashed var(--line);
}

.page-faq .faq-a p {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.78;
  color: var(--muted);
}

.page-faq .faq-a strong {
  color: var(--paper);
  font-weight: 700;
}

.page-faq .faq-permalink {
  display: inline-block;
  margin-top: 12px;
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--mist);
  text-decoration: none;
  border-bottom: 1px solid var(--line);
}

.page-faq .faq-permalink:hover {
  color: var(--neon);
  border-bottom-color: var(--neon);
}

.page-faq .faq-figure {
  margin: 20px 0 0;
}

/* ---------- 中段横向索引带 ---------- */
.page-faq .faq-band {
  margin-top: clamp(40px, 6vw, 68px);
  border-top: 4px solid var(--line);
  border-bottom: 4px solid var(--line);
}

.page-faq .faq-band__grid {
  display: grid;
  gap: 22px;
}

@media (min-width: 820px) {
  .page-faq .faq-band__grid {
    grid-template-columns: minmax(0, 1fr) 300px;
    align-items: center;
    gap: 36px;
  }
}

.page-faq .faq-band__title {
  margin: 8px 0 14px;
  font-size: clamp(19px, 2.6vw, 25px);
  font-weight: 800;
  line-height: 1.32;
  color: var(--paper);
}

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

.page-faq .faq-band__link {
  display: inline-block;
  padding: 8px 14px;
  border: 2px solid var(--line-strong);
  border-radius: var(--r-pill);
  font-size: 13px;
  font-weight: 600;
  color: var(--mist);
  text-decoration: none;
  transition: background 0.2s ease, color 0.2s ease, border-color 0.2s ease;
}

.page-faq .faq-band__link:hover {
  background: var(--neon);
  border-color: var(--neon);
  color: var(--ink);
}

.page-faq .faq-band__path {
  display: flex;
  justify-content: center;
}

.page-faq .faq-path {
  width: 100%;
  max-width: 320px;
  height: auto;
}

/* ---------- 收尾按钮 ---------- */
.page-faq .faq-cta {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin: 24px 0 0;
}
</final>