.page-faq {
  display: block;
  padding: var(--gap-lg) 0 var(--gap-xl);
}

.page-faq .breadcrumb {
  margin-bottom: var(--gap-md);
}

/* ---------- 首屏 ---------- */

.page-faq .faq-hero {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--gap-lg);
  padding-bottom: var(--gap-lg);
  border-bottom: 1px solid var(--rule);
}

.page-faq .faq-hero::before {
  content: "";
  position: absolute;
  inset: -32px -24px 0 -24px;
  background:
    radial-gradient(58% 52% at 10% 6%, rgba(31, 158, 154, 0.16), transparent 70%),
    radial-gradient(46% 44% at 92% 2%, rgba(242, 98, 46, 0.13), transparent 72%);
  pointer-events: none;
  z-index: 0;
}

.page-faq .faq-hero__text,
.page-faq .faq-hero__figure {
  position: relative;
  z-index: 1;
  min-width: 0;
}

.page-faq .faq-hero__eyebrow {
  margin: 0;
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--glacier-deep);
  text-transform: uppercase;
}

.page-faq .faq-hero h1 {
  margin: var(--gap-sm) 0 var(--gap-md);
  font-family: var(--font-sans);
  font-weight: 900;
  font-size: clamp(28px, 5vw, 46px);
  line-height: 1.18;
  letter-spacing: -0.02em;
  color: var(--ink);
  max-width: 17em;
}

.page-faq .faq-hero__lead {
  margin: 0;
  max-width: 34em;
  font-size: 16px;
  line-height: 1.85;
  color: var(--ink-soft);
}

.page-faq .faq-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--gap-sm);
  margin-top: var(--gap-md);
}

.page-faq .faq-hero__meta {
  list-style: none;
  margin: var(--gap-lg) 0 0;
  padding: var(--gap-sm) 0 0;
  border-top: 1px solid var(--rule-soft);
  display: flex;
  flex-wrap: wrap;
  gap: 10px var(--gap-md);
}

.page-faq .faq-hero__meta li {
  display: flex;
  align-items: baseline;
  gap: 6px;
  font-size: 13px;
  color: var(--ink-soft);
}

.page-faq .faq-hero__meta .mono {
  font-size: 16px;
  font-weight: 700;
  color: var(--signal);
  letter-spacing: 0.01em;
}

.page-faq .faq-hero__figure {
  margin: 0;
  align-self: start;
}

.page-faq .faq-hero__figure img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  border: 1px solid var(--rule);
  box-shadow: 4px 4px 0 rgba(16, 28, 54, 0.1);
  filter: saturate(0.74) contrast(1.04);
}

.page-faq .faq-hero__figure::after {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  width: 5px;
  height: 100%;
  background: linear-gradient(
    180deg,
    var(--flag-blue) 0 20%,
    var(--paper-light) 20% 40%,
    var(--flag-red) 40% 60%,
    var(--flag-green) 60% 80%,
    var(--flag-yellow) 80% 100%
  );
  pointer-events: none;
}

.page-faq .faq-hero__figure .img-frame__cap {
  display: block;
  margin-top: 10px;
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--mist);
}

/* ---------- 主体分栏 ---------- */

.page-faq .faq-body {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--gap-lg);
  margin-top: var(--gap-lg);
}

.page-faq .faq-side {
  min-width: 0;
  border-top: 3px solid var(--indigo);
  padding-top: var(--gap-sm);
}

.page-faq .faq-side__caption {
  margin: 0 0 var(--gap-xs);
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--mist);
  text-transform: uppercase;
}

.page-faq .faq-side__list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-faq .faq-side__list > li {
  margin-bottom: 2px;
}

.page-faq .faq-side__link {
  display: flex;
  align-items: baseline;
  gap: 10px;
  padding: 9px 10px 9px 0;
  border-left: 2px solid var(--rule-soft);
  padding-left: 12px;
  text-decoration: none;
  color: var(--ink-soft);
  font-size: 14px;
  line-height: 1.5;
  transition: background-color 160ms ease, border-color 160ms ease, color 160ms ease;
}

.page-faq .faq-side__link:hover,
.page-faq .faq-side__link:focus-visible {
  background: var(--paper-light);
  border-left-color: var(--signal);
  color: var(--ink);
}

.page-faq .faq-side__num {
  flex: none;
  font-size: 11px;
  letter-spacing: 0.08em;
  color: var(--signal);
}

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

.page-faq .faq-side__foot {
  margin: var(--gap-md) 0 0;
  padding-top: var(--gap-sm);
  border-top: 1px dashed var(--rule-soft);
  font-size: 12px;
  line-height: 1.7;
  color: var(--mist);
}

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

/* ---------- 分组 ---------- */

.page-faq .faq-group {
  scroll-margin-top: 88px;
}

.page-faq .faq-group + .faq-group {
  margin-top: var(--gap-xl);
}

.page-faq .faq-group .section-head {
  margin-bottom: var(--gap-md);
  padding-left: 12px;
  border-left: 5px solid var(--glacier);
}

.page-faq .faq-group .section-head__note {
  margin-top: 6px;
  font-size: 14px;
  line-height: 1.7;
  color: var(--ink-soft);
}

.page-faq .faq-group__figure {
  margin: 0 0 var(--gap-md);
}

.page-faq .faq-group__figure img {
  display: block;
  width: 100%;
  height: auto;
  border: 1px solid var(--rule);
  background: var(--paper-light);
  filter: saturate(0.7) contrast(1.03);
}

.page-faq .faq-group__figure .img-frame__cap {
  display: block;
  margin-top: 8px;
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--mist);
}

/* ---------- 问答折叠项 ---------- */

.page-faq .qa-list {
  display: block;
}

.page-faq .qa-item {
  background: var(--paper-light);
  border: 1px solid var(--rule);
  border-radius: var(--radius);
  box-shadow: 2px 2px 0 rgba(11, 15, 24, 0.07);
  transition: box-shadow 160ms ease, border-color 160ms ease;
}

.page-faq .qa-item + .qa-item {
  margin-top: 12px;
}

.page-faq .qa-item:hover {
  border-color: var(--rule-soft);
  box-shadow: 3px 3px 0 rgba(31, 158, 154, 0.16);
}

.page-faq .qa-item[open] {
  border-color: var(--glacier);
  box-shadow: 4px 4px 0 rgba(31, 158, 154, 0.2);
}

.page-faq .qa-item__sum {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: var(--gap-sm);
  padding: 14px 16px;
  cursor: pointer;
  list-style: none;
  color: var(--ink);
  font-weight: 700;
  font-size: 16px;
  line-height: 1.6;
}

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

.page-faq .qa-item__sum:focus-visible {
  outline: 2px solid var(--glacier);
  outline-offset: -2px;
}

.page-faq .qa-item__toggle {
  flex: none;
  position: relative;
  width: 20px;
  height: 20px;
  margin-top: 2px;
  border: 1px solid var(--rule);
  background: var(--paper);
}

.page-faq .qa-item__toggle::before,
.page-faq .qa-item__toggle::after {
  content: "";
  position: absolute;
  background: var(--signal);
}

.page-faq .qa-item__toggle::before {
  left: 4px;
  right: 4px;
  top: 50%;
  height: 1.5px;
  margin-top: -0.75px;
}

.page-faq .qa-item__toggle::after {
  top: 4px;
  bottom: 4px;
  left: 50%;
  width: 1.5px;
  margin-left: -0.75px;
  transform: scaleY(1);
  transform-origin: center;
  transition: transform 160ms ease;
}

.page-faq .qa-item[open] .qa-item__toggle {
  border-color: var(--glacier);
}

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

.page-faq .qa-item__body {
  padding: 0 16px 16px;
  border-top: 1px dashed var(--rule-soft);
}

.page-faq .qa-steps {
  list-style: none;
  counter-reset: qa;
  margin: var(--gap-sm) 0 0;
  padding: 0;
}

.page-faq .qa-steps > li {
  position: relative;
  counter-increment: qa;
  margin-left: 10px;
  padding: 0 0 14px 26px;
  border-left: 1px solid var(--rule-soft);
  font-size: 15px;
  line-height: 1.75;
  color: var(--ink-soft);
}

.page-faq .qa-steps > li:last-child {
  padding-bottom: 0;
  border-left-color: transparent;
}

.page-faq .qa-steps > li::before {
  content: counter(qa, decimal-leading-zero);
  position: absolute;
  left: -10px;
  top: 1px;
  width: 20px;
  height: 20px;
  border-radius: 50%;
  background: var(--paper);
  border: 1px solid var(--glacier);
  color: var(--glacier-deep);
  font-family: var(--font-mono);
  font-size: 9px;
  line-height: 18px;
  text-align: center;
  letter-spacing: 0;
}

.page-faq .qa-item__note {
  margin: var(--gap-sm) 0 0;
  padding: 2px 0 2px 12px;
  border-left: 3px solid var(--flag-yellow);
  font-size: 14px;
  line-height: 1.75;
  color: var(--ink-soft);
}

/* ---------- 中途条带 ---------- */

.page-faq .faq-strip {
  position: relative;
  overflow: hidden;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--gap-md);
  align-items: center;
  margin: var(--gap-xl) 0;
  padding: var(--gap-md);
  background: linear-gradient(135deg, var(--indigo) 0%, var(--midnight) 58%, #24406B 100%);
  border: 1px solid var(--midnight);
  border-radius: var(--radius);
  box-shadow: 4px 4px 0 rgba(16, 28, 54, 0.22);
  color: var(--paper-light);
}

.page-faq .faq-strip::before {
  content: "";
  position: absolute;
  right: -40px;
  top: -40px;
  width: 180px;
  height: 180px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(79, 209, 204, 0.24), transparent 68%);
  pointer-events: none;
}

.page-faq .faq-strip__svg {
  width: 128px;
  max-width: 100%;
  height: auto;
  stroke: var(--glacier-lite);
  stroke-width: 1.6;
  fill: none;
}

.page-faq .faq-strip__svg circle {
  fill: var(--signal);
  stroke: none;
}

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

.page-faq .faq-strip__title {
  margin: 0 0 6px;
  font-size: 18px;
  font-weight: 800;
  line-height: 1.45;
  letter-spacing: -0.01em;
  color: var(--paper-light);
}

.page-faq .faq-strip__desc {
  margin: 0;
  font-size: 14px;
  line-height: 1.8;
  color: var(--rail-text);
  max-width: 40em;
}

.page-faq .faq-strip .btn {
  justify-self: start;
}

/* ---------- 收尾 ---------- */

.page-faq .faq-next {
  margin-top: var(--gap-xl);
  padding: var(--gap-md);
  background: var(--paper-light);
  border: 1px solid var(--rule);
  border-top: 4px solid var(--flag-blue);
  border-radius: var(--radius);
  box-shadow: 2px 2px 0 rgba(11, 15, 24, 0.07);
}

.page-faq .faq-next__title {
  margin: 0 0 8px;
  font-size: 20px;
  font-weight: 800;
  letter-spacing: -0.01em;
  color: var(--ink);
}

.page-faq .faq-next__desc {
  margin: 0;
  font-size: 15px;
  line-height: 1.8;
  color: var(--ink-soft);
  max-width: 42em;
}

.page-faq .faq-next__links {
  display: flex;
  flex-wrap: wrap;
  gap: var(--gap-sm);
  margin-top: var(--gap-md);
}

/* ---------- 响应式 ---------- */

@media (min-width: 720px) {
  .page-faq .faq-strip {
    grid-template-columns: 128px minmax(0, 1fr) auto;
    gap: var(--gap-lg);
  }

  .page-faq .faq-strip .btn {
    justify-self: end;
  }
}

@media (min-width: 768px) {
  .page-faq .faq-hero__figure img {
    aspect-ratio: 7 / 9;
  }
}

@media (min-width: 900px) {
  .page-faq .faq-hero {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, 0.85fr);
    gap: var(--gap-xl);
    align-items: start;
  }

  .page-faq .faq-body {
    grid-template-columns: minmax(0, 240px) minmax(0, 1fr);
    gap: var(--gap-xl);
  }

  .page-faq .faq-side {
    position: sticky;
    top: 28px;
    align-self: start;
  }

  .page-faq .faq-side__list > li {
    margin-bottom: 1px;
  }

  .page-faq .qa-item__sum {
    padding: 16px 20px;
    font-size: 17px;
  }

  .page-faq .qa-item__body {
    padding: 0 20px 20px;
  }
}

@media (min-width: 1100px) {
  .page-faq .faq-hero__eyebrow {
    font-size: 13px;
  }

  .page-faq .faq-group__figure {
    max-width: 78%;
  }
}
<<<END>>>