.page-faq {
  background: var(--mist);
  color: var(--ink-deep);
  padding-bottom: clamp(2.6rem, 7vw, 5rem);
}

.page-faq .faq-crumbs {
  padding-top: clamp(1rem, 3vw, 1.6rem);
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  overflow: hidden;
  background:
    radial-gradient(130% 95% at 86% -12%, rgba(46, 125, 255, 0.34), transparent 62%),
    linear-gradient(158deg, var(--ink-deep) 0%, var(--ink-mid) 100%);
  color: var(--core);
  padding: clamp(2.4rem, 6.5vw, 4.6rem) 0 clamp(2.2rem, 5.5vw, 3.8rem);
  margin-top: clamp(0.6rem, 2vw, 1.2rem);
}

.page-faq .faq-hero::after {
  content: "";
  position: absolute;
  inset: 0;
  background-image: repeating-linear-gradient(
    108deg,
    rgba(143, 163, 200, 0.17) 0 1px,
    transparent 1px 88px
  );
  pointer-events: none;
}

.page-faq .faq-hero .shell {
  position: relative;
  z-index: 1;
}

.page-faq .faq-hero .eyebrow {
  color: var(--trail);
  letter-spacing: 0.18em;
}

.page-faq .faq-hero h1 {
  font-family: var(--font-serif);
  font-weight: 700;
  font-size: clamp(1.85rem, 6vw, 3.2rem);
  line-height: 1.14;
  letter-spacing: 0.01em;
  color: var(--core);
  margin: 0.5rem 0 0;
  max-width: 15em;
}

.page-faq .faq-hero__lead {
  margin-top: 1rem;
  max-width: 36em;
  font-size: clamp(1rem, 2vw, 1.06rem);
  line-height: 1.78;
  color: #cfdcf5;
}

.page-faq .faq-hero__jump {
  margin: 1.4rem 0 0;
}

.page-faq .faq-hero__jump a {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.82rem;
  letter-spacing: 0.1em;
  color: var(--core);
  text-decoration: none;
  border-bottom: 1px solid rgba(87, 224, 208, 0.7);
  padding-bottom: 2px;
  transition: color 0.25s var(--ease), border-color 0.25s var(--ease);
}

.page-faq .faq-hero__jump a:hover,
.page-faq .faq-hero__jump a:focus-visible {
  color: var(--trail);
  border-color: var(--trail);
}

/* ---------- 筛选条 ---------- */
.page-faq .faq-filter {
  padding-top: clamp(1.4rem, 4vw, 2.2rem);
}

.page-faq .faq-filter .filter-bar {
  align-items: center;
}

/* ---------- 布局 ---------- */
.page-faq .faq-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(1.6rem, 4vw, 3rem);
  padding-top: clamp(1.4rem, 4vw, 2.2rem);
}

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

.page-faq .faq-nav__title {
  font-family: var(--font-mono);
  font-size: 0.74rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--slate);
  margin: 0 0 0.6rem;
}

.page-faq .faq-nav ul {
  display: flex;
  flex-wrap: wrap;
  gap: 0 0.9rem;
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-faq .faq-nav a {
  display: block;
  padding: 0.5rem 0.15rem;
  border-bottom: 2px solid var(--edge);
  color: var(--ink-mid);
  font-size: 0.94rem;
  text-decoration: none;
  transition: border-color 0.25s var(--ease), color 0.25s var(--ease);
}

.page-faq .faq-nav a:hover,
.page-faq .faq-nav a:focus-visible {
  border-bottom-color: var(--saffron);
  color: var(--flare);
}

/* ---------- 问答主体 ---------- */
.page-faq .faq-panel {
  display: grid;
  gap: clamp(2rem, 5vw, 3.4rem);
  min-width: 0;
}

.page-faq .faq-block {
  scroll-margin-top: 6rem;
  min-width: 0;
}

.page-faq .faq-block__head {
  margin-bottom: clamp(0.9rem, 2.5vw, 1.4rem);
}

.page-faq .faq-block__index {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  letter-spacing: 0.24em;
  color: var(--flare);
}

.page-faq .faq-block h2 {
  font-family: var(--font-serif);
  font-weight: 600;
  font-size: clamp(1.4rem, 3.6vw, 2rem);
  line-height: 1.24;
  color: var(--ink-deep);
  margin: 0.3rem 0 0.5rem;
}

.page-faq .faq-block__desc {
  margin: 0;
  max-width: 38em;
  font-size: 0.96rem;
  line-height: 1.72;
  color: #4a5b7d;
}

.page-faq .faq-figure {
  margin: 0 0 clamp(1rem, 3vw, 1.6rem);
  border: 1px solid var(--edge);
  background: linear-gradient(150deg, var(--ink-deep), var(--ink-mid));
  box-shadow: 0 6px 20px rgba(10, 20, 48, 0.06);
}

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

.page-faq .faq-figure--chart {
  margin-top: clamp(1rem, 3vw, 1.6rem);
  margin-bottom: 0;
}

.page-faq .faq-list {
  border-bottom: 1px solid var(--edge);
}

.page-faq .faq-item {
  border-top: 1px solid var(--edge);
}

.page-faq .faq-item > summary {
  display: flex;
  align-items: baseline;
  gap: 0.8rem;
  padding: 1rem 0.1rem;
  cursor: pointer;
  list-style: none;
  transition: background 0.25s var(--ease);
}

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

.page-faq .faq-item > summary:focus-visible {
  outline: 2px solid var(--flare);
  outline-offset: 2px;
}

.page-faq .faq-item__num {
  flex: 0 0 auto;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--slate);
  padding-top: 0.12rem;
}

.page-faq .faq-item__q {
  flex: 1 1 auto;
  font-family: var(--font-serif);
  font-weight: 600;
  font-size: clamp(1rem, 2.2vw, 1.12rem);
  line-height: 1.52;
  color: var(--ink-deep);
  transition: color 0.25s var(--ease);
}

.page-faq .faq-item > summary:hover .faq-item__q,
.page-faq .faq-item > summary:focus-visible .faq-item__q {
  color: var(--flare);
}

.page-faq .faq-item__sign {
  position: relative;
  flex: 0 0 auto;
  width: 13px;
  height: 13px;
  margin-top: 0.32rem;
}

.page-faq .faq-item__sign::before,
.page-faq .faq-item__sign::after {
  content: "";
  position: absolute;
  background: var(--slate);
  transition: transform 0.3s var(--ease), background 0.3s var(--ease);
}

.page-faq .faq-item__sign::before {
  left: 0;
  right: 0;
  top: 5.8px;
  height: 1.5px;
}

.page-faq .faq-item__sign::after {
  top: 0;
  bottom: 0;
  left: 5.8px;
  width: 1.5px;
}

.page-faq .faq-item[open] .faq-item__sign::before {
  background: var(--saffron);
}

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

.page-faq .faq-answer {
  padding: 0 0.1rem 1.25rem 1.6rem;
  animation: faq-answer-in 0.32s var(--ease) both;
}

.page-faq .faq-answer p {
  margin: 0 0 0.7rem;
  font-size: 0.95rem;
  line-height: 1.78;
  color: #3d4d6d;
  max-width: 40em;
}

.page-faq .faq-answer p:last-child {
  margin-bottom: 0;
}

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

.page-faq .faq-answer a:hover,
.page-faq .faq-answer a:focus-visible {
  color: var(--saffron);
}

.page-faq .faq-answer .num {
  font-family: var(--font-mono);
  color: var(--ink-mid);
}

@keyframes faq-answer-in {
  from {
    opacity: 0;
    transform: translateY(-5px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* ---------- 兜底区块 ---------- */
.page-faq .faq-foot {
  display: grid;
  gap: 1.2rem;
  border: 1px solid var(--edge);
  background: #fff;
  padding: clamp(1.3rem, 4vw, 2rem);
  box-shadow: 0 4px 16px rgba(10, 20, 48, 0.05);
  border-top: 3px solid var(--flare);
}

.page-faq .faq-foot h2 {
  font-family: var(--font-serif);
  font-weight: 600;
  font-size: clamp(1.2rem, 3vw, 1.5rem);
  line-height: 1.3;
  margin: 0 0 0.5rem;
  color: var(--ink-deep);
}

.page-faq .faq-foot p {
  margin: 0;
  max-width: 40em;
  font-size: 0.95rem;
  line-height: 1.75;
  color: #3d4d6d;
}

.page-faq .faq-foot__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
}

.page-faq .faq-foot__actions .btn {
  text-decoration: none;
}

/* ---------- 响应式 ---------- */
@media (min-width: 720px) {
  .page-faq .faq-answer {
    padding-left: 2.4rem;
  }

  .page-faq .faq-figure--chart {
    max-width: 620px;
  }
}

@media (min-width: 960px) {
  .page-faq .faq-layout {
    grid-template-columns: 14.5rem minmax(0, 1fr);
    gap: clamp(2rem, 4vw, 3.4rem);
  }

  .page-faq .faq-nav {
    position: sticky;
    top: 5.4rem;
  }

  .page-faq .faq-nav ul {
    flex-direction: column;
    flex-wrap: nowrap;
    gap: 0;
  }

  .page-faq .faq-nav a {
    border-bottom: 0;
    border-left: 2px solid var(--edge);
    padding: 0.5rem 0.4rem 0.5rem 0.9rem;
  }

  .page-faq .faq-nav a:hover,
  .page-faq .faq-nav a:focus-visible {
    border-left-color: var(--saffron);
    border-bottom-color: transparent;
  }

  .page-faq .faq-item > summary {
    padding: 1.15rem 0.2rem;
  }

  .page-faq .faq-answer {
    padding-left: 2.7rem;
  }

  .page-faq .faq-foot {
    grid-template-columns: minmax(0, 1fr) auto;
    align-items: center;
    gap: 2rem;
  }

  .page-faq .faq-foot__actions {
    flex-direction: column;
    align-items: stretch;
    min-width: 12rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-answer {
    animation: none;
  }

  .page-faq .faq-nav a,
  .page-faq .faq-item__q,
  .page-faq .faq-item__sign::before,
  .page-faq .faq-item__sign::after {
    transition: none;
  }
}
<<<PAGE_CSS_END>>>