.page-faq {
  --faq-panel: rgba(22, 29, 69, 0.72);
  --faq-panel-strong: rgba(22, 29, 69, 0.96);
  --faq-hair: rgba(43, 54, 112, 0.6);
  --faq-chip-bg: rgba(11, 16, 48, 0.6);
  color: var(--white);
}

/* ---------- 页头 ---------- */
.page-faq .faq-head {
  padding: 36px 0 8px;
}

.page-faq .faq-head-grid {
  display: grid;
  gap: 28px;
  align-items: end;
}

.page-faq .faq-head-copy {
  min-width: 0;
}

.page-faq .faq-title {
  font-family: var(--font-display);
  font-weight: 300;
  font-size: clamp(34px, 6vw, 84px);
  line-height: 1.06;
  letter-spacing: -0.01em;
  margin: 12px 0 16px;
  max-width: 18ch;
}

.page-faq .lede {
  font-size: clamp(15px, 1.5vw, 17px);
  line-height: 1.75;
  color: var(--muted);
  max-width: 62ch;
  margin: 0;
}

.page-faq .faq-figure {
  margin: 0;
  min-width: 0;
}

.page-faq .figure-media {
  border: 1px solid var(--line);
  background: var(--ink-2);
  overflow: hidden;
}

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

.page-faq .figure-cap {
  margin: 10px 0 0;
  font-size: 12px;
  letter-spacing: 0.04em;
  color: var(--muted);
}

/* ---------- 两栏骨架 ---------- */
.page-faq .faq-layout {
  display: grid;
  gap: 26px;
  padding: 32px 0 72px;
}

.page-faq .faq-index {
  min-width: 0;
  border-top: 1px solid var(--faq-hair);
  border-bottom: 1px solid var(--faq-hair);
  padding: 16px 0;
}

.page-faq .faq-index-title {
  margin: 0 0 12px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--muted);
}

.page-faq .faq-index-list {
  list-style: none;
  margin: 0;
  padding: 0 0 2px;
  display: flex;
  gap: 8px;
  overflow-x: auto;
  scrollbar-width: thin;
}

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

.page-faq .faq-index-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 12px;
  border: 1px solid var(--line);
  background: var(--faq-chip-bg);
  color: var(--white);
  text-decoration: none;
  font-size: 13px;
  white-space: nowrap;
  transition: border-color 0.18s ease, color 0.18s ease;
}

.page-faq .faq-index-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--line);
  transition: background 0.18s ease, box-shadow 0.18s ease;
}

.page-faq .faq-index-num {
  font-size: 11px;
  color: var(--muted);
}

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

.page-faq .faq-index-link:hover .faq-index-dot,
.page-faq .faq-index-link:focus-visible .faq-index-dot {
  background: var(--green);
  box-shadow: 0 0 8px var(--green);
}

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

/* ---------- 分段筛选 ---------- */
.page-faq .faq-filter {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  padding-bottom: 20px;
  margin-bottom: 4px;
  border-bottom: 1px solid var(--faq-hair);
}

.page-faq .faq-chip {
  appearance: none;
  border: 1px solid var(--line);
  background: var(--faq-chip-bg);
  color: var(--white);
  font: inherit;
  font-size: 13px;
  letter-spacing: 0.02em;
  padding: 8px 14px;
  cursor: pointer;
  transition: border-color 0.18s ease, background 0.18s ease, color 0.18s ease;
}

.page-faq .faq-chip:hover,
.page-faq .faq-chip:focus-visible {
  border-color: var(--cyan);
  color: var(--cyan);
}

.page-faq .faq-chip[aria-pressed="true"] {
  border-color: var(--cyan);
  background: var(--cyan);
  color: var(--deep);
}

/* ---------- 分类章节 ---------- */
.page-faq .faq-section {
  padding: 34px 0 6px;
  scroll-margin-top: 104px;
}

.page-faq .faq-section + .faq-section {
  border-top: 1px solid var(--faq-hair);
}

.page-faq .faq-section .section-head {
  display: flex;
  align-items: baseline;
  gap: 12px;
  margin: 0 0 12px;
}

.page-faq .faq-section .section-coord {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--cyan);
}

.page-faq .faq-section .section-title {
  margin: 0;
  font-size: clamp(20px, 2.2vw, 27px);
  font-weight: 600;
  line-height: 1.25;
}

.page-faq .faq-section-note {
  margin: 0 0 16px;
  font-size: 14px;
  line-height: 1.75;
  color: var(--muted);
  max-width: 62ch;
}

.page-faq .faq-fields {
  list-style: none;
  margin: 0 0 18px;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.page-faq .faq-fields li {
  font-size: 11px;
  letter-spacing: 0.08em;
  padding: 5px 10px;
  border: 1px solid var(--line);
  background: var(--faq-chip-bg);
  color: var(--muted);
}

/* ---------- 折叠问答 ---------- */
.page-faq .faq-list {
  display: grid;
  gap: 10px;
}

.page-faq .faq-item {
  border: 1px solid var(--line);
  border-left-width: 2px;
  background: var(--faq-panel);
  transition: border-color 0.18s ease, background 0.18s ease;
}

.page-faq .faq-item.is-key {
  border-left-color: var(--orange);
}

.page-faq .faq-item[open] {
  border-left-color: var(--cyan);
  background: var(--faq-panel-strong);
}

.page-faq .faq-q {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  align-items: center;
  gap: 12px;
  padding: 15px 16px;
  cursor: pointer;
  list-style: none;
}

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

.page-faq .faq-q:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: -2px;
}

.page-faq .faq-q-num {
  font-size: 11px;
  color: var(--muted);
}

.page-faq .faq-q-text {
  font-size: 15.5px;
  line-height: 1.55;
  font-weight: 500;
  color: var(--white);
}

.page-faq .faq-item[open] .faq-q-text {
  color: var(--cyan);
}

.page-faq .faq-q-mark {
  justify-self: end;
  width: 9px;
  height: 9px;
  border-right: 1.5px solid var(--cyan);
  border-bottom: 1.5px solid var(--cyan);
  transform: rotate(45deg);
  transition: transform 0.18s ease;
}

.page-faq .faq-item[open] .faq-q-mark {
  transform: rotate(-135deg);
}

.page-faq .faq-a {
  padding: 13px 16px 18px;
  border-top: 1px solid var(--faq-hair);
  font-size: 15px;
  line-height: 1.75;
  color: var(--muted);
}

.page-faq .faq-a p {
  margin: 0;
  max-width: 68ch;
}

.page-faq .faq-a a {
  color: var(--cyan);
  text-underline-offset: 3px;
}

.page-faq .faq-mobile-figure {
  margin: 0 0 18px;
}

/* ---------- 结尾协助区 ---------- */
.page-faq .faq-contact {
  margin-top: 4px;
  padding: 22px 20px;
  background: linear-gradient(180deg, var(--rise) 0%, rgba(11, 16, 48, 0.9) 100%);
}

.page-faq .faq-contact-text {
  margin: 0 0 16px;
  font-size: 15px;
  line-height: 1.75;
  color: var(--white);
  max-width: 62ch;
}

.page-faq .faq-contact-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.page-faq .faq-contact-note {
  margin: 16px 0 0;
  font-size: 13px;
  line-height: 1.7;
  color: var(--muted);
  max-width: 62ch;
}

.page-faq .faq-backtop-wrap {
  margin: 26px 0 0;
}

.page-faq .faq-backtop {
  display: inline-block;
  font-size: 11px;
  letter-spacing: 0.14em;
  color: var(--muted);
  text-decoration: none;
  padding-bottom: 3px;
  border-bottom: 1px dashed var(--line);
  transition: color 0.18s ease, border-color 0.18s ease;
}

.page-faq .faq-backtop:hover,
.page-faq .faq-backtop:focus-visible {
  color: var(--cyan);
  border-bottom-color: var(--cyan);
}

/* ---------- 响应式 ---------- */
@media (max-width: 479px) {
  .page-faq .faq-q {
    padding: 14px 12px;
    gap: 10px;
  }

  .page-faq .faq-a {
    padding: 12px 12px 16px;
  }

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

  .page-faq .faq-contact-actions .btn {
    flex: 1 1 auto;
    text-align: center;
  }
}

@media (min-width: 768px) {
  .page-faq .faq-layout {
    gap: 34px;
  }

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

  .page-faq .faq-head-grid {
    grid-template-columns: minmax(0, 1.08fr) minmax(0, 0.92fr);
    gap: 40px;
  }
}

@media (min-width: 1024px) {
  .page-faq .faq-head {
    padding-top: 48px;
  }

  .page-faq .faq-layout {
    grid-template-columns: 232px minmax(0, 1fr);
    gap: 56px;
    padding-top: 44px;
  }

  .page-faq .faq-index {
    position: sticky;
    top: 104px;
    align-self: start;
    border-top: 0;
    border-bottom: 0;
    padding: 0;
  }

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

  .page-faq .faq-index-link {
    width: 100%;
    border: 0;
    border-left: 2px solid transparent;
    background: transparent;
    padding: 9px 0 9px 12px;
    white-space: normal;
  }

  .page-faq .faq-index-link:hover,
  .page-faq .faq-index-link:focus-visible {
    border-left-color: var(--cyan);
  }

  .page-faq .faq-section {
    scroll-margin-top: 118px;
  }

  .page-faq .faq-mobile-figure {
    float: right;
    width: 46%;
    max-width: 360px;
    margin: 0 0 18px 24px;
  }
}
<<<END>>>