.page-faq {
  --faq-idx-w: 264px;
  padding-bottom: clamp(64px, 9vw, 120px);
}

.page-faq .faq-head {
  padding: clamp(28px, 5vw, 56px) 0 clamp(22px, 3.4vw, 38px);
}

.page-faq .faq-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 22px;
  margin-top: 22px;
  padding-top: 16px;
  border-top: 1px solid var(--line);
  color: var(--text-3);
}

.page-faq .faq-meta .mono-index {
  color: var(--text-3);
}

/* ---------- 双栏骨架 ---------- */
.page-faq .faq-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(28px, 4vw, 44px);
  align-items: start;
}

.page-faq .faq-body {
  display: flex;
  flex-direction: column;
  gap: clamp(48px, 7vw, 92px);
  min-width: 0;
}

/* ---------- 左侧常驻索引 ---------- */
.page-faq .faq-index {
  min-width: 0;
}

.page-faq .faq-index-title {
  margin: 0 0 14px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--text-4);
}

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

.page-faq .faq-index-item {
  flex: 0 0 auto;
}

.page-faq .faq-index-link {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 14px;
  white-space: nowrap;
  text-decoration: none;
  color: var(--text-2);
  background: rgba(22, 32, 74, .42);
  border: 1px solid var(--line);
  clip-path: var(--cut-sm-path);
  transition: background .24s var(--ease), border-color .24s var(--ease), color .24s var(--ease);
}

.page-faq .faq-index-link:hover,
.page-faq .faq-index-link:focus-visible {
  color: var(--text-1);
  border-color: var(--violet);
  background: rgba(110, 75, 209, .2);
}

.page-faq .faq-index-num {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .08em;
  color: var(--text-4);
}

.page-faq .faq-index-name {
  font-size: 14px;
}

.page-faq .faq-index-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--violet);
}

.page-faq .faq-index-item:nth-child(1) .faq-index-dot { background: var(--violet); }
.page-faq .faq-index-item:nth-child(2) .faq-index-dot { background: var(--cyan); }
.page-faq .faq-index-item:nth-child(3) .faq-index-dot { background: var(--gold); }
.page-faq .faq-index-item:nth-child(4) .faq-index-dot { background: var(--moss); }
.page-faq .faq-index-item:nth-child(5) .faq-index-dot { background: var(--clay); }
.page-faq .faq-index-item:nth-child(6) .faq-index-dot { background: #7A84A0; }

.page-faq .faq-index-note {
  margin: 16px 0 0;
  font-size: 13px;
  line-height: 1.75;
  color: var(--text-4);
}

/* ---------- 分类区块 ---------- */
.page-faq .faq-cat {
  --cat: var(--violet);
  scroll-margin-top: calc(var(--header-h) + 88px);
  min-width: 0;
}

.page-faq .faq-cat--cyan { --cat: var(--cyan); }
.page-faq .faq-cat--gold { --cat: var(--gold); }
.page-faq .faq-cat--moss { --cat: var(--moss); }
.page-faq .faq-cat--clay { --cat: var(--clay); }
.page-faq .faq-cat--rock { --cat: #7A84A0; }

.page-faq .cat-band {
  display: block;
  height: 6px;
  width: 100%;
  margin-bottom: 18px;
  background: linear-gradient(90deg, var(--cat) 0%, rgba(242, 239, 232, .06) 82%);
}

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

.page-faq .cat-index {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .14em;
  color: var(--cat);
}

.page-faq .cat-title {
  flex: 1 1 auto;
  margin: 0;
  font-size: clamp(24px, 3vw, 32px);
  font-weight: 400;
  letter-spacing: .01em;
  color: var(--text-1);
}

.page-faq .cat-count {
  flex: 0 0 auto;
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--text-4);
}

/* ---------- 问答条目 ---------- */
.page-faq .qa-list {
  margin-top: 4px;
}

.page-faq .qa {
  border-bottom: 1px solid rgba(90, 102, 140, .2);
}

.page-faq .qa summary {
  display: grid;
  grid-template-columns: 34px minmax(0, 1fr) 14px;
  align-items: start;
  gap: 12px;
  padding: 16px 0;
  cursor: pointer;
  list-style: none;
  transition: color .2s var(--ease);
}

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

.page-faq .qa summary:hover .qa-q,
.page-faq .qa summary:focus-visible .qa-q {
  color: var(--violet-soft);
}

.page-faq .qa summary:focus-visible {
  outline: 2px solid var(--violet);
  outline-offset: 3px;
}

.page-faq .qa-num {
  font-family: var(--font-mono);
  font-size: 12px;
  line-height: 1.95;
  letter-spacing: .06em;
  color: var(--text-4);
  transition: color .24s var(--ease);
}

.page-faq .qa-q {
  font-size: 17px;
  font-weight: 500;
  line-height: 1.6;
  color: var(--text-1);
  transition: color .2s var(--ease);
}

.page-faq .qa-toggle {
  width: 9px;
  height: 9px;
  margin-top: 8px;
  border-right: 1.5px solid var(--text-3);
  border-bottom: 1.5px solid var(--text-3);
  transform: rotate(45deg);
  transition: transform .24s var(--ease), border-color .24s var(--ease);
}

.page-faq .qa[open] .qa-toggle {
  transform: rotate(-135deg);
  border-color: var(--cat);
}

.page-faq .qa[open] .qa-num {
  color: var(--cat);
}

.page-faq .qa-a {
  padding: 0 0 18px 46px;
  font-size: 16px;
  line-height: 1.8;
  color: var(--text-2);
}

.page-faq .qa-a p { margin: 0; }

.page-faq .qa-a b {
  font-weight: 600;
  color: var(--text-1);
  border-bottom: 1px solid var(--cat);
}

.page-faq .qa-link {
  color: var(--violet-soft);
  text-decoration: none;
  border-bottom: 1px solid rgba(185, 166, 242, .5);
}

.page-faq .qa-link:hover,
.page-faq .qa-link:focus-visible {
  color: var(--paper);
  border-bottom-color: var(--paper);
}

/* ---------- 配图 ---------- */
.page-faq .faq-figure {
  margin: clamp(26px, 3.4vw, 40px) 0 0;
}

.page-faq .faq-shot {
  overflow: hidden;
  background: var(--panel);
  border: 1px solid var(--line);
  clip-path: var(--cut-path);
  box-shadow: inset 0 0 0 1px rgba(11, 14, 26, .65), 0 18px 42px rgba(4, 6, 16, .5);
}

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

.page-faq .faq-figure .media-caption {
  margin-top: 12px;
  font-size: 13px;
  line-height: 1.7;
  color: var(--text-4);
}

/* ---------- 收尾联络区 ---------- */
.page-faq .faq-cta {
  margin-top: clamp(24px, 3vw, 36px);
}

.page-faq .faq-cta-lead {
  margin: 0 0 10px;
  font-size: clamp(20px, 2.4vw, 24px);
  font-weight: 400;
  line-height: 1.5;
  color: var(--text-1);
}

.page-faq .faq-cta-text {
  margin: 0 0 22px;
  font-size: 16px;
  line-height: 1.75;
  color: var(--text-2);
}

.page-faq .faq-contact {
  list-style: none;
  margin: 0 0 24px;
  padding: 0;
  display: grid;
  grid-template-columns: 1fr;
  gap: 12px;
}

.page-faq .faq-contact li {
  display: flex;
  flex-direction: column;
  gap: 5px;
  padding: 14px 16px;
  background: rgba(11, 14, 26, .55);
  border: 1px solid var(--line);
  clip-path: var(--cut-sm-path);
}

.page-faq .faq-contact-label {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--text-4);
}

.page-faq .faq-contact-value {
  font-family: var(--font-mono);
  font-size: 15px;
  line-height: 1.6;
  color: var(--paper);
  word-break: break-word;
}

.page-faq .faq-cta-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin: 0;
}

/* ---------- 响应式 ---------- */
@media (min-width: 640px) {
  .page-faq .faq-contact {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-faq .faq-contact-wide {
    grid-column: 1 / -1;
  }
}

@media (min-width: 960px) {
  .page-faq .faq-layout {
    grid-template-columns: var(--faq-idx-w) minmax(0, 1fr);
    gap: clamp(40px, 5vw, 76px);
  }

  .page-faq .faq-index {
    position: sticky;
    top: calc(var(--header-h) + 28px);
  }

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

  .page-faq .faq-index-item {
    flex: 1 1 auto;
  }

  .page-faq .faq-index-link {
    width: 100%;
    box-sizing: border-box;
  }

  .page-faq .faq-index-dot {
    margin-left: auto;
  }
}

@media (max-width: 639px) {
  .page-faq .qa summary {
    grid-template-columns: 30px minmax(0, 1fr) 12px;
    gap: 10px;
  }

  .page-faq .qa-a {
    padding-left: 0;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .qa-toggle,
  .page-faq .qa-num,
  .page-faq .qa-q,
  .page-faq .faq-index-link {
    transition: none;
  }
}
<<<END>>>