.page-faq {
  --faq-gap: clamp(1.25rem, 4vw, 3rem);
  --faq-pad: clamp(1.5rem, 4vw, 2.5rem);
  background: var(--ink-green);
  color: var(--paper);
  overflow-x: hidden;
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  background: var(--ink-green);
  border-bottom: 1px solid var(--rule);
  overflow: hidden;
}

.page-faq .faq-hero::after {
  content: "";
  position: absolute;
  top: 0;
  right: 0;
  bottom: 0;
  width: 46%;
  background: var(--field-green);
  clip-path: polygon(22% 0, 100% 0, 100% 100%, 0 100%);
  opacity: 0.6;
  pointer-events: none;
}

.page-faq .faq-hero__grid {
  position: relative;
  z-index: 1;
  display: grid;
  gap: var(--faq-gap);
  padding-block: clamp(1.25rem, 4vw, 2.25rem) clamp(2.25rem, 6vw, 4rem);
}

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

.page-faq .faq-hero h1 {
  margin: 0.75rem 0 0;
  font-family: var(--font-body);
  font-weight: 900;
  letter-spacing: -0.02em;
  line-height: 1.14;
  font-size: clamp(2rem, 6.4vw, 3.55rem);
  text-wrap: balance;
}

.page-faq .faq-hero__lede {
  margin: 1.1rem 0 0;
  max-width: 44ch;
  color: var(--mint);
  font-size: clamp(0.9375rem, 1.4vw, 1.0625rem);
  line-height: 1.8;
}

.page-faq .faq-hero__cta {
  margin-top: 1.5rem;
}

.page-faq .faq-hero__figure {
  margin: 0;
  border: 1px solid var(--rule);
}

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

/* ---------- 数据刻度带 ---------- */
.page-faq .faq-metrics {
  background: var(--field-green);
  border-bottom: 1px solid var(--rule);
}

.page-faq .faq-metrics__row {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1rem 0;
  padding-block: clamp(1.1rem, 3vw, 1.9rem);
}

.page-faq .faq-metric {
  display: flex;
  flex-direction: column;
  gap: 0.3rem;
  padding-inline: 0.9rem;
  border-left: 1px solid var(--rule);
}

.page-faq .faq-metric:nth-child(odd) {
  border-left: 0;
  padding-left: 0;
}

.page-faq .faq-metric__num {
  display: block;
  font-family: var(--font-mono);
  font-weight: 600;
  font-size: clamp(1.5rem, 3.6vw, 2.2rem);
  line-height: 1;
  letter-spacing: -0.02em;
  color: var(--lime);
}

.page-faq .faq-metric__unit {
  font-size: 0.46em;
  margin-left: 0.2em;
  color: var(--mint);
  letter-spacing: 0;
}

.page-faq .faq-metric__label {
  font-size: 0.8125rem;
  letter-spacing: 0.04em;
  color: var(--mint);
}

/* ---------- 主体：左栏主题 + 右栏问答 ---------- */
.page-faq .faq-layout {
  display: grid;
  gap: 1.5rem;
  padding-block: clamp(1.75rem, 5vw, 3.5rem) clamp(2.5rem, 7vw, 5rem);
}

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

.page-faq .faq-rail__title {
  margin: 0 0 0.7rem;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--slate);
}

.page-faq .faq-rail__list {
  display: flex;
  gap: 0.5rem;
  margin: 0;
  padding: 0 0 0.4rem;
  list-style: none;
  overflow-x: auto;
  scrollbar-width: thin;
  -webkit-overflow-scrolling: touch;
}

.page-faq .faq-pill {
  display: inline-flex;
  align-items: baseline;
  gap: 0.45rem;
  padding: 0.45rem 0.85rem;
  border: 1px solid var(--rule);
  border-radius: 999px;
  color: var(--mint);
  font-size: 0.875rem;
  line-height: 1.4;
  text-decoration: none;
  white-space: nowrap;
  transition: background-color 0.16s ease, color 0.16s ease, border-color 0.16s ease;
}

.page-faq .faq-pill__no {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--amber);
}

.page-faq .faq-pill:hover,
.page-faq .faq-pill:focus-visible {
  background: var(--lime);
  border-color: var(--lime);
  color: var(--ink-green);
}

.page-faq .faq-pill:hover .faq-pill__no,
.page-faq .faq-pill:focus-visible .faq-pill__no {
  color: var(--ink-green);
}

.page-faq .faq-rail__note {
  margin: 0.9rem 0 0;
  font-size: 0.8125rem;
  color: var(--slate);
}

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

/* ---------- 分组 ---------- */
.page-faq .faq-group {
  padding: var(--faq-pad);
  border-top: 1px solid var(--rule);
  scroll-margin-top: 90px;
}

.page-faq .faq-group:nth-child(even) {
  background: var(--field-green);
}

.page-faq .faq-group__head {
  padding-left: clamp(0.7rem, 2vw, 1.15rem);
  border-left: 2px solid var(--lime);
  margin-bottom: clamp(0.9rem, 2.4vw, 1.6rem);
}

.page-faq .faq-group__no {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  letter-spacing: 0.14em;
  color: var(--amber);
}

.page-faq .faq-group__head h2 {
  margin: 0.35rem 0 0;
  font-size: clamp(1.3rem, 3.2vw, 1.85rem);
  font-weight: 800;
  letter-spacing: -0.01em;
  line-height: 1.25;
}

.page-faq .faq-group__lede {
  margin: 0.55rem 0 0;
  max-width: 54ch;
  color: var(--mint);
  font-size: 0.9375rem;
  line-height: 1.75;
}

.page-faq .faq-group__figure {
  margin: 0 0 1.25rem;
  border: 1px solid var(--rule);
}

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

/* ---------- 折叠条目 ---------- */
.page-faq .faq-item {
  border-bottom: 1px solid var(--rule);
  transition: background-color 0.18s ease;
}

.page-faq .faq-item summary {
  display: flex;
  align-items: flex-start;
  gap: 0.7rem;
  padding: 0.9rem 0.2rem;
  list-style: none;
  cursor: pointer;
  color: var(--paper);
  font-size: clamp(0.9375rem, 1.7vw, 1.0625rem);
  font-weight: 600;
  line-height: 1.55;
  transition: color 0.16s ease;
}

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

.page-faq .faq-item summary::marker {
  content: "";
}

.page-faq .faq-item summary:hover {
  color: var(--lime);
}

.page-faq .faq-item summary:focus-visible {
  outline: 2px solid var(--lime);
  outline-offset: 3px;
}

.page-faq .faq-item__icon {
  position: relative;
  flex: 0 0 auto;
  width: 1.05rem;
  height: 1.05rem;
  margin-top: 0.25rem;
  transition: transform 0.2s ease;
}

.page-faq .faq-item__icon::before,
.page-faq .faq-item__icon::after {
  content: "";
  position: absolute;
  top: 50%;
  left: 0;
  width: 100%;
  height: 2px;
  background: var(--lime);
  transform: translateY(-50%);
}

.page-faq .faq-item__icon::after {
  transform: translateY(-50%) rotate(90deg);
}

.page-faq .faq-item[open] .faq-item__icon {
  transform: rotate(45deg);
}

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

.page-faq .faq-item__answer {
  margin: 0 0 0.85rem;
  padding: 0.9rem 1rem 1rem;
  background: var(--paper);
  color: var(--ink);
  border-left: 3px solid var(--lime);
  animation: faqAnswerIn 0.18s ease-out both;
}

.page-faq .faq-item__answer p {
  margin: 0 0 0.6rem;
  font-size: 0.9375rem;
  line-height: 1.8;
}

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

.page-faq .faq-item__answer a {
  color: var(--ink-green);
  font-weight: 600;
  text-decoration: underline;
  text-underline-offset: 0.2em;
  text-decoration-thickness: 1px;
}

.page-faq .faq-item__answer a:hover,
.page-faq .faq-item__answer a:focus-visible {
  background: var(--lime);
  color: var(--ink);
  text-decoration-color: var(--ink);
}

@keyframes faqAnswerIn {
  from {
    opacity: 0;
    transform: translateY(-4px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* ---------- 收尾 ---------- */
.page-faq .faq-help {
  background: var(--field-green);
  border-top: 1px solid var(--rule);
}

.page-faq .faq-help__inner {
  display: grid;
  gap: 1.35rem;
  padding-block: clamp(2rem, 5vw, 3.5rem);
}

.page-faq .faq-help h2 {
  margin: 0;
  font-size: clamp(1.3rem, 3.2vw, 1.9rem);
  font-weight: 800;
  letter-spacing: -0.01em;
  line-height: 1.3;
}

.page-faq .faq-help__text p {
  margin: 0.65rem 0 0;
  max-width: 56ch;
  color: var(--mint);
  font-size: 0.9375rem;
  line-height: 1.8;
}

.page-faq .faq-help__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}

/* ---------- 断点 ---------- */
@media (min-width: 720px) {
  .page-faq .faq-metrics__row {
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 0;
  }

  .page-faq .faq-metric {
    padding-inline: 1.15rem;
    border-left: 1px solid var(--rule);
  }

  .page-faq .faq-metric:nth-child(odd) {
    padding-left: 1.15rem;
    border-left: 1px solid var(--rule);
  }

  .page-faq .faq-metric:first-child {
    padding-left: 0;
    border-left: 0;
  }

  .page-faq .faq-help__inner {
    grid-template-columns: minmax(0, 1.5fr) minmax(0, 1fr);
    align-items: center;
  }

  .page-faq .faq-help__actions {
    justify-content: flex-end;
  }
}

@media (min-width: 900px) {
  .page-faq .faq-hero__grid {
    grid-template-columns: minmax(0, 1.6fr) minmax(0, 1fr);
    align-items: end;
    gap: clamp(2rem, 5vw, 4rem);
    padding-block: clamp(1.75rem, 4vw, 2.75rem) clamp(3rem, 6vw, 4.5rem);
  }

  .page-faq .faq-hero__figure {
    align-self: stretch;
  }

  .page-faq .faq-hero__figure img {
    min-height: 320px;
  }

  .page-faq .faq-layout {
    grid-template-columns: 208px minmax(0, 1fr);
    gap: clamp(2rem, 5vw, 4rem);
    align-items: start;
    padding-block: clamp(2.5rem, 5vw, 4rem) clamp(3rem, 7vw, 5.5rem);
  }

  .page-faq .faq-rail {
    position: sticky;
    top: 1.5rem;
  }

  .page-faq .faq-rail__list {
    flex-direction: column;
    gap: 0.45rem;
    overflow: visible;
    padding: 0.2rem 0 0.2rem 0.85rem;
    border-left: 1px solid var(--rule);
  }

  .page-faq .faq-pill {
    justify-content: flex-start;
    white-space: normal;
    border-radius: 6px;
  }

  .page-faq .faq-group {
    scroll-margin-top: 110px;
  }

  .page-faq .faq-item summary {
    padding: 1.05rem 0.3rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-item__icon,
  .page-faq .faq-item,
  .page-faq .faq-pill {
    transition: none;
  }

  .page-faq .faq-item__answer {
    animation: none;
  }
}
<<<PAGE_CSS_END>>>