.page-faq {
  --faq-rail: 248px;
  --faq-pad: clamp(16px, 2.4vw, 26px);
  padding-bottom: clamp(56px, 8vw, 104px);
}

.page-faq .breadcrumb {
  margin-top: 20px;
}

/* ── 扉页 ───────────────────────────────── */
.page-faq__mast {
  position: relative;
  z-index: 0;
  display: grid;
  gap: 30px;
  margin-top: 24px;
  padding: clamp(22px, 4vw, 46px) 0 clamp(26px, 4vw, 44px);
}

.page-faq__mast::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 0;
  pointer-events: none;
  background: linear-gradient(122deg, rgba(76, 141, 217, .22), rgba(10, 16, 36, 0) 62%);
  clip-path: polygon(0 0, 100% 0, 77% 100%, 0 100%);
}

.page-faq__mast-copy,
.page-faq__mast-figure {
  position: relative;
  z-index: 1;
}

.page-faq__title {
  margin: 14px 0 0;
  font-family: var(--font-head);
  font-weight: 900;
  font-size: clamp(30px, 6.4vw, 56px);
  line-height: 1.14;
  letter-spacing: -.012em;
  color: var(--white);
}

.page-faq__lead {
  margin-top: 18px;
  max-width: 34em;
  font-size: clamp(15.5px, 1.7vw, 17px);
  line-height: 1.85;
  color: var(--text-soft);
}

.page-faq__mast-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 26px;
}

.page-faq__mast-figure {
  margin: 0;
}

.page-faq__mast-figure img,
.page-faq__group-figure img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
}

/* ── 分栏骨架 ────────────────────────────── */
.page-faq__layout {
  display: grid;
  gap: 30px;
  margin-top: clamp(34px, 6vw, 70px);
}

.page-faq__index-title {
  margin: 0 0 14px;
  font-size: 12.5px;
  letter-spacing: .18em;
  color: var(--muted);
}

.page-faq__index-list {
  display: flex;
  gap: 10px;
  margin: 0;
  padding: 0 0 8px;
  list-style: none;
  overflow-x: auto;
  scrollbar-width: thin;
}

.page-faq__index-link {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 10px 18px 10px 16px;
  border: 1px solid var(--line-soft);
  border-radius: var(--radius-pill);
  background: rgba(16, 26, 54, .72);
  color: var(--text-soft);
  font-size: 14.5px;
  text-decoration: none;
  white-space: nowrap;
  transition: color .26s var(--ease), border-color .26s var(--ease), background .26s var(--ease), transform .26s var(--ease);
}

.page-faq__index-link:hover,
.page-faq__index-link:focus-visible {
  color: var(--white);
  border-color: var(--yellow);
  background: linear-gradient(90deg, rgba(242, 193, 78, .20), rgba(242, 193, 78, .02));
  transform: translateY(-2px);
}

.page-faq__index-num {
  font-size: 12px;
  letter-spacing: .06em;
  color: var(--yellow);
}

.page-faq__stream {
  min-width: 0;
}

/* ── 问答分组 ────────────────────────────── */
.page-faq__group {
  scroll-margin-top: 104px;
}

.page-faq__group + .page-faq__group {
  margin-top: clamp(46px, 7vw, 84px);
}

.page-faq__group-head {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 10px 16px;
  padding-bottom: 16px;
  margin-bottom: 22px;
  border-bottom: 1px solid var(--line);
}

.page-faq__group-num {
  font-size: 14px;
  letter-spacing: .1em;
  color: var(--yellow);
}

.page-faq__group-head .section-title {
  margin: 0;
  font-size: clamp(21px, 2.7vw, 28px);
  color: var(--white);
}

.page-faq__group-tag {
  margin-left: auto;
  font-size: 12.5px;
}

.page-faq__group-body {
  display: grid;
  gap: 26px;
}

.page-faq__group-figure {
  margin: 0;
}

/* ── 折叠问答 ────────────────────────────── */
.page-faq__item {
  position: relative;
  margin-top: 12px;
  background: var(--plate);
  border: 1px solid var(--line-soft);
  box-shadow: 0 20px 40px -34px rgba(0, 0, 0, .9);
  transition: transform .3s var(--ease), border-color .3s var(--ease), box-shadow .3s var(--ease), background .3s var(--ease);
}

.page-faq__item:first-child {
  margin-top: 0;
}

.page-faq__item:hover {
  transform: translateY(-4px);
  border-color: var(--line);
  box-shadow: var(--shadow-panel);
}

.page-faq__item[open] {
  border-color: rgba(242, 193, 78, .42);
}

.page-faq__item--paper {
  background: var(--paper);
  border-color: #c9d4ec;
  box-shadow: 0 20px 40px -34px rgba(10, 16, 36, .55);
}

.page-faq__item--paper[open] {
  border-color: rgba(10, 16, 36, .62);
}

.page-faq__q {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  padding: 18px var(--faq-pad);
  cursor: pointer;
  list-style: none;
  color: var(--white);
  font-size: 15.5px;
  font-weight: 500;
  line-height: 1.65;
}

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

.page-faq__q:focus-visible {
  outline: 2px solid var(--yellow);
  outline-offset: -2px;
}

.page-faq__item--paper .page-faq__q {
  color: var(--night);
}

.page-faq__q-index {
  flex: none;
  padding-top: 3px;
  font-size: 12.5px;
  letter-spacing: .05em;
  color: var(--muted);
}

.page-faq__item--paper .page-faq__q-index {
  color: #6a7aa3;
}

.page-faq__q-text {
  flex: 1 1 auto;
  min-width: 0;
  transition: color .26s var(--ease);
}

.page-faq__item[open] .page-faq__q-text {
  color: var(--yellow);
}

.page-faq__item--paper[open] .page-faq__q-text {
  color: #8f6a10;
}

.page-faq__q-mark {
  flex: none;
  width: 9px;
  height: 9px;
  margin-top: 7px;
  border-right: 2px solid var(--yellow);
  border-bottom: 2px solid var(--yellow);
  transform: rotate(45deg);
  transition: transform .3s var(--ease);
}

.page-faq__item[open] .page-faq__q-mark {
  transform: rotate(-135deg);
}

.page-faq__item--paper .page-faq__q-mark {
  border-color: var(--night);
}

.page-faq__a {
  max-width: 34em;
  padding: 0 var(--faq-pad) 20px;
  font-size: 15px;
  line-height: 1.88;
  color: var(--text-soft);
}

.page-faq__a p {
  margin: 0;
}

.page-faq__a p + p {
  margin-top: 12px;
}

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

.page-faq__item--paper .page-faq__a {
  color: #2c3a63;
}

.page-faq__item--paper .page-faq__a a {
  color: #1f5fae;
}

/* ── 数据仪表条 ──────────────────────────── */
.page-faq__meters {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(132px, 1fr));
  gap: 12px;
  margin-bottom: 26px;
}

.page-faq__meter {
  padding: 16px 18px;
  border: 1px solid var(--line-soft);
  border-top: 2px solid rgba(242, 193, 78, .62);
  background: linear-gradient(180deg, rgba(24, 41, 82, .92), rgba(16, 26, 54, .92));
}

.page-faq__meter-value {
  display: block;
  font-size: clamp(26px, 3.4vw, 32px);
  line-height: 1.1;
  color: var(--yellow);
}

.page-faq__meter-label {
  display: block;
  margin-top: 6px;
  font-size: 12.5px;
  letter-spacing: .08em;
  color: var(--muted);
}

/* ── 对照表 ──────────────────────────────── */
.page-faq__table-wrap {
  margin-top: 26px;
  overflow-x: auto;
  border: 1px solid var(--line-soft);
  background: rgba(16, 26, 54, .62);
}

.page-faq__table {
  min-width: 520px;
  width: 100%;
}

.page-faq__table caption {
  caption-side: top;
  padding: 14px var(--faq-pad);
  text-align: left;
  font-size: 12.5px;
  letter-spacing: .1em;
  color: var(--muted);
  border-bottom: 1px solid var(--line-soft);
}

/* ── 人工协助 ────────────────────────────── */
.page-faq__assist {
  margin-top: clamp(52px, 8vw, 96px);
  scroll-margin-top: 104px;
}

.page-faq__assist-card {
  padding: clamp(22px, 4vw, 44px);
}

.page-faq__assist-title {
  margin: 12px 0 0;
  font-family: var(--font-head);
  font-weight: 800;
  font-size: clamp(22px, 3.1vw, 32px);
  line-height: 1.32;
  color: var(--night);
}

.page-faq__assist-grid {
  display: grid;
  gap: 24px;
  margin-top: 20px;
}

.page-faq__assist-text p {
  margin: 0;
  max-width: 34em;
  font-size: 15px;
  line-height: 1.85;
  color: #2c3a63;
}

.page-faq__assist-text p + p {
  margin-top: 10px;
}

.page-faq__assist-text a {
  color: #1f5fae;
  text-underline-offset: 3px;
}

.page-faq__assist-list {
  display: grid;
  gap: 10px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-faq__assist-list li {
  position: relative;
  padding-left: 22px;
  font-size: 14.5px;
  line-height: 1.7;
  color: #2c3a63;
}

.page-faq__assist-list li::before {
  content: "";
  position: absolute;
  left: 4px;
  top: 9px;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--night);
}

.page-faq__assist-contact {
  margin-top: 26px;
  padding-top: 20px;
  border-top: 1px solid #c9d4ec;
}

.page-faq__assist-contact p {
  margin: 0;
  font-size: 15px;
  color: var(--night);
}

.page-faq__assist-contact .note {
  margin-top: 6px;
  font-size: 13px;
  color: #4c5a80;
}

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

/* ── 延伸入口 ────────────────────────────── */
.page-faq__more {
  display: grid;
  gap: 10px;
  margin-top: clamp(26px, 5vw, 44px);
}

.page-faq__more-link {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 14px 18px;
  border: 1px solid var(--line-soft);
  border-left: 3px solid rgba(242, 193, 78, .52);
  background: rgba(16, 26, 54, .62);
  color: var(--text-soft);
  font-size: 14.5px;
  text-decoration: none;
  transition: color .26s var(--ease), border-color .26s var(--ease), background .26s var(--ease), transform .26s var(--ease);
}

.page-faq__more-link .mono {
  color: var(--yellow);
}

.page-faq__more-link:hover,
.page-faq__more-link:focus-visible {
  color: var(--white);
  border-color: var(--yellow);
  background: rgba(24, 41, 82, .92);
  transform: translateY(-3px);
}

/* ── 桌面与平板 ──────────────────────────── */
@media (min-width: 760px) {
  .page-faq__more {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 16px;
  }

  .page-faq__assist-grid {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, .95fr);
    gap: 40px;
  }
}

@media (min-width: 960px) {
  .page-faq__mast {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    align-items: end;
    gap: clamp(32px, 5vw, 64px);
  }
}

@media (min-width: 1000px) {
  .page-faq__layout {
    grid-template-columns: var(--faq-rail) minmax(0, 1fr);
    gap: clamp(32px, 5vw, 64px);
    align-items: start;
  }

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

  .page-faq__index-list {
    flex-direction: column;
    gap: 8px;
    overflow: visible;
    padding-bottom: 0;
  }

  .page-faq__index-link {
    justify-content: flex-start;
    border-radius: 0 var(--radius-pill) var(--radius-pill) 0;
    border-left: 3px solid rgba(242, 193, 78, .3);
  }

  .page-faq__index-link:hover,
  .page-faq__index-link:focus-visible {
    border-left-color: var(--yellow);
  }
}

@media (min-width: 1100px) {
  .page-faq__group-body {
    grid-template-columns: minmax(0, 1fr) minmax(0, 320px);
    align-items: start;
  }

  .page-faq__group-figure {
    position: sticky;
    top: 104px;
  }
}

/* ── 降低动效 ────────────────────────────── */
@media (prefers-reduced-motion: reduce) {
  .page-faq__item,
  .page-faq__item:hover,
  .page-faq__index-link,
  .page-faq__index-link:hover,
  .page-faq__more-link,
  .page-faq__more-link:hover {
    transition: none;
    transform: none;
  }

  .page-faq__q-mark,
  .page-faq__q-text {
    transition: none;
  }

  .page-faq__item[open] .page-faq__q-mark {
    transform: rotate(-135deg);
  }
}
<<<END>>>

*(注：末行 `<<<END>>>` 仅为结束标识，实际交付请以 MAIN_HTML 与 PAGE_CSS 两段为准。)*