.page-faq {
  --faq-gap: clamp(1rem, 2.6vw, 1.6rem);
  --faq-glow: 0 0 30px -18px rgba(37, 230, 230, .95);
  background: var(--bg);
  color: var(--text);
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  overflow: hidden;
  padding: clamp(2.2rem, 7vw, 4.4rem) 0 clamp(2.4rem, 6vw, 4rem);
  border-bottom: 1px solid var(--line-soft);
  background:
    radial-gradient(120% 96% at 84% 2%, rgba(37, 230, 230, .17), transparent 58%),
    radial-gradient(96% 76% at 4% 96%, rgba(255, 122, 26, .13), transparent 60%),
    linear-gradient(180deg, var(--bg-abyss), var(--bg) 78%);
}

.page-faq .faq-hero::after {
  content: "";
  position: absolute;
  left: -10%;
  right: -10%;
  top: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(37, 230, 230, .8), transparent);
  animation: faq-scan 8s linear infinite;
  pointer-events: none;
}

@keyframes faq-scan {
  0%   { transform: translateY(0); opacity: 0; }
  14%  { opacity: 1; }
  86%  { opacity: 1; }
  100% { transform: translateY(clamp(300px, 54vw, 520px)); opacity: 0; }
}

.page-faq .faq-hero__inner {
  position: relative;
  z-index: 1;
  display: grid;
  gap: clamp(1.6rem, 4vw, 2.6rem);
  align-items: center;
}

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

.page-faq .faq-hero__lead .crumbs {
  margin-bottom: .9rem;
}

.page-faq .faq-hero__lead h1 {
  margin: .35rem 0 .9rem;
}

.page-faq .faq-hero__media {
  margin: 0;
  box-shadow: var(--shadow-soft);
  border: 1px solid var(--line-soft);
}

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

.page-faq .faq-chips {
  display: flex;
  flex-wrap: wrap;
  gap: .45rem;
  margin-top: 1.4rem;
}

.page-faq .faq-chip {
  display: inline-flex;
  align-items: center;
  padding: .42rem .82rem;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: rgba(18, 30, 51, .62);
  color: var(--text-dim);
  font-size: .82rem;
  line-height: 1.2;
  text-decoration: none;
  transition: color .22s var(--ease), border-color .22s var(--ease), background-color .22s var(--ease);
}

.page-faq .faq-chip:hover,
.page-faq .faq-chip:focus-visible {
  color: var(--cyan);
  border-color: rgba(37, 230, 230, .62);
  background: rgba(37, 230, 230, .08);
}

/* ---------- 主体两栏 ---------- */
.page-faq .faq-layout {
  display: grid;
  gap: clamp(1.6rem, 4vw, 2.6rem);
  padding-top: clamp(2rem, 5vw, 3.2rem);
  padding-bottom: clamp(2.4rem, 6vw, 4rem);
}

.page-faq .faq-side {
  align-self: start;
  min-width: 0;
}

.page-faq .faq-side__label {
  margin: 0 0 .8rem;
  font-size: .74rem;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--text-dim);
}

.page-faq .faq-toc {
  list-style: none;
  margin: 0 0 1.2rem;
  padding: 0;
  border-left: 1px solid var(--line);
}

.page-faq .faq-toc li {
  margin: 0;
}

.page-faq .faq-toc .toc-link {
  display: block;
  margin-left: -1px;
  padding: .52rem .2rem .52rem .9rem;
  border-left: 2px solid transparent;
  color: var(--text-dim);
  font-size: .88rem;
  line-height: 1.45;
  text-decoration: none;
  transition: color .22s var(--ease), border-color .22s var(--ease);
}

.page-faq .faq-toc .toc-link:hover,
.page-faq .faq-toc .toc-link:focus-visible,
.page-faq .faq-toc .toc-link[aria-current="true"] {
  color: var(--cyan);
  border-left-color: var(--cyan);
}

.page-faq .faq-side__note {
  padding: .95rem 1rem;
  border: 1px dashed var(--line);
  border-radius: var(--radius-sm);
  background: rgba(18, 30, 51, .55);
}

.page-faq .faq-side__note p {
  margin: 0 0 .75rem;
  color: var(--text-dim);
  font-size: .85rem;
  line-height: 1.65;
}

.page-faq .faq-body {
  display: grid;
  gap: clamp(2rem, 5vw, 3.2rem);
  min-width: 0;
}

/* ---------- 章节头 ---------- */
.page-faq .faq-block {
  min-width: 0;
  scroll-margin-top: calc(var(--header-h) + 20px);
}

.page-faq .faq-block__head {
  position: relative;
  padding-left: 1rem;
  border-left: 2px solid var(--line);
  margin-bottom: 1.25rem;
}

.page-faq .faq-block__head::before {
  content: "";
  position: absolute;
  left: -2px;
  top: 0;
  width: 2px;
  height: 2.6rem;
  background: linear-gradient(180deg, var(--cyan), transparent);
}

.page-faq .faq-block__head .section-title {
  margin: .3rem 0 .5rem;
}

.page-faq .faq-block__head .section-lede {
  margin: 0;
  max-width: 58ch;
}

/* ---------- 编号步骤 ---------- */
.page-faq .steps {
  list-style: none;
  margin: 0 0 1.3rem;
  padding: 0;
  display: grid;
  gap: .7rem;
}

.page-faq .step {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: .5rem .9rem;
  padding: 1rem 1.05rem;
  border: 1px solid var(--line-soft);
  border-left: 2px solid rgba(37, 230, 230, .7);
  border-radius: var(--radius-sm);
  background: rgba(13, 22, 38, .74);
  transition: border-color .25s var(--ease), background-color .25s var(--ease);
}

.page-faq .step:hover {
  border-color: rgba(37, 230, 230, .5);
  background: rgba(18, 30, 51, .82);
}

.page-faq .step__num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 2rem;
  height: 1.5rem;
  padding: 0 .35rem;
  border: 1px solid rgba(37, 230, 230, .42);
  border-radius: 8px;
  color: var(--cyan);
  font-size: .74rem;
  letter-spacing: .06em;
}

.page-faq .step__body h3 {
  margin: 0 0 .35rem;
  font-size: 1rem;
  font-weight: 600;
  color: var(--text);
  letter-spacing: .01em;
}

.page-faq .step__body p {
  margin: 0;
  color: var(--text-dim);
  font-size: .9rem;
  line-height: 1.75;
}

.page-faq .faq-block__media {
  margin: 0 0 1.3rem;
  border: 1px solid var(--line-soft);
}

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

/* ---------- 路径线 ---------- */
.page-faq .path-line {
  list-style: none;
  margin: 0 0 1.3rem;
  padding: 0;
  display: grid;
  gap: .5rem;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
}

.page-faq .path-line__item {
  display: flex;
  align-items: center;
  gap: .6rem;
  padding: .62rem .9rem;
  border: 1px solid var(--line-soft);
  border-radius: 999px;
  background: rgba(13, 22, 38, .7);
  color: var(--text);
  font-size: .85rem;
  line-height: 1.4;
}

.page-faq .path-line__dot {
  flex: 0 0 auto;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--cyan);
  box-shadow: 0 0 10px rgba(37, 230, 230, .9);
}

.page-faq .path-line__item:last-child .path-line__dot {
  background: var(--orange);
  box-shadow: 0 0 10px rgba(255, 122, 26, .9);
}

/* ---------- 对比维度 ---------- */
.page-faq .dim-grid {
  list-style: none;
  margin: 0 0 1.3rem;
  padding: 0;
  display: grid;
  gap: .7rem;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
}

.page-faq .dim {
  padding: .95rem 1rem;
  border: 1px solid var(--line-soft);
  border-top: 2px solid rgba(37, 230, 230, .55);
  border-radius: var(--radius-sm);
  background: linear-gradient(180deg, rgba(18, 30, 51, .85), rgba(13, 22, 38, .85));
}

.page-faq .dim__name {
  margin: 0;
  color: var(--cyan);
  font-size: .95rem;
  font-weight: 600;
  letter-spacing: .01em;
}

.page-faq .dim__desc {
  margin: .4rem 0 0;
  color: var(--text-dim);
  font-size: .84rem;
  line-height: 1.7;
}

/* ---------- 折叠问答 ---------- */
.page-faq .qa-list {
  display: block;
}

.page-faq .qa {
  border: 1px solid var(--line-soft);
  border-radius: var(--radius);
  background: linear-gradient(180deg, rgba(18, 30, 51, .92), rgba(13, 22, 38, .92));
  overflow: hidden;
  transition: border-color .25s var(--ease), box-shadow .25s var(--ease);
}

.page-faq .qa + .qa {
  margin-top: .65rem;
}

.page-faq .qa:hover {
  border-color: rgba(37, 230, 230, .35);
}

.page-faq .qa[open] {
  border-color: rgba(37, 230, 230, .5);
  box-shadow: var(--faq-glow);
}

.page-faq .qa__q {
  display: flex;
  align-items: flex-start;
  gap: .75rem;
  padding: 1rem 1.05rem;
  cursor: pointer;
  list-style: none;
  color: var(--text);
  font-size: .97rem;
  font-weight: 600;
  line-height: 1.55;
}

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

.page-faq .qa__q-text {
  min-width: 0;
}

.page-faq .qa__mark {
  position: relative;
  flex: 0 0 auto;
  width: 20px;
  height: 20px;
  margin-top: .16rem;
  border: 1px solid rgba(37, 230, 230, .6);
  border-radius: 6px;
}

.page-faq .qa__mark::before,
.page-faq .qa__mark::after {
  content: "";
  position: absolute;
  inset: 0;
  margin: auto;
  background: var(--cyan);
}

.page-faq .qa__mark::before {
  width: 10px;
  height: 1.5px;
}

.page-faq .qa__mark::after {
  width: 1.5px;
  height: 10px;
  transition: transform .25s var(--ease), opacity .25s var(--ease);
}

.page-faq .qa[open] .qa__mark::after {
  transform: scaleY(0);
  opacity: 0;
}

.page-faq .qa__a {
  margin: 0;
  padding: .95rem 1.1rem 1.1rem 2.1rem;
  border-top: 1px solid var(--line-soft);
  color: var(--text-dim);
  font-size: .9rem;
  line-height: 1.8;
}

.page-faq .qa__a p {
  margin: 0;
}

.page-faq .qa__a p + p {
  margin-top: .6rem;
}

/* ---------- 数据表补充 ---------- */
.page-faq .faq-block .table-scroll {
  margin-bottom: 1.3rem;
}

/* ---------- 收尾 ---------- */
.page-faq .faq-cta__inner {
  display: grid;
  gap: 1.3rem;
  padding: clamp(1.4rem, 4vw, 2.2rem);
}

.page-faq .faq-cta__copy .eyebrow {
  margin: 0 0 .4rem;
}

.page-faq .faq-cta__copy .section-title {
  margin: 0 0 .6rem;
}

.page-faq .faq-cta__copy .panel-text {
  margin: 0;
  max-width: 56ch;
}

.page-faq .faq-cta__actions {
  display: flex;
  flex-wrap: wrap;
  gap: .6rem;
}

/* ---------- 断点 ---------- */
@media (min-width: 700px) {
  .page-faq .faq-cta__inner {
    grid-template-columns: minmax(0, 1fr) auto;
    align-items: center;
  }
  .page-faq .faq-cta__actions {
    flex-direction: column;
    align-items: stretch;
  }
}

@media (min-width: 960px) {
  .page-faq .faq-hero__inner {
    grid-template-columns: minmax(0, 1.06fr) minmax(0, .94fr);
  }

  .page-faq .faq-hero__media {
    transform: rotate(-1.4deg);
  }

  .page-faq .faq-layout {
    grid-template-columns: 250px minmax(0, 1fr);
  }

  .page-faq .faq-side {
    position: sticky;
    top: calc(var(--header-h) + 20px);
  }
}

@media (min-width: 1180px) {
  .page-faq .faq-layout {
    grid-template-columns: 272px minmax(0, 1fr);
    gap: 3.4rem;
  }
}

@media (max-width: 420px) {
  .page-faq .step {
    grid-template-columns: minmax(0, 1fr);
  }
  .page-faq .qa__a {
    padding-left: 1.1rem;
  }
  .page-faq .faq-cta__actions .btn {
    flex: 1 1 100%;
    justify-content: center;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-hero::after {
    animation: none;
    opacity: .5;
  }
  .page-faq .step,
  .page-faq .qa,
  .page-faq .qa__mark::after,
  .page-faq .faq-chip,
  .page-faq .faq-toc .toc-link {
    transition: none;
  }
}
<<<END>>>