.page-faq {
  --faq-rule: rgba(78, 96, 112, .24);
  --faq-accent: var(--brick);
  background: var(--paper);
  color: var(--ink);
  overflow-x: hidden;
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  padding: 28px 0 44px;
  background: linear-gradient(180deg, rgba(14, 36, 57, .07) 0%, rgba(14, 36, 57, 0) 74%);
}

.page-faq .faq-hero__inner {
  display: grid;
  gap: 32px;
}

.page-faq .faq-hero__eyebrow {
  margin: 26px 0 14px;
  font-size: 12px;
  letter-spacing: .08em;
  color: var(--brick);
}

.page-faq .faq-hero__title {
  margin: 0 0 20px;
  font-family: var(--font-title);
  font-weight: 800;
  font-size: clamp(32px, 5.4vw, 60px);
  line-height: 1.16;
  letter-spacing: -0.005em;
  color: var(--deep);
  max-width: 12em;
}

.page-faq .faq-hero__intro {
  margin: 0;
  max-width: 40em;
  font-family: var(--font-body);
  font-size: var(--fs-body);
  line-height: 1.9;
  letter-spacing: .02em;
  color: var(--mist);
}

.page-faq .faq-hero__aside-note {
  margin: 22px 0 0;
  font-family: var(--font-body);
  font-size: 15px;
  line-height: 1.8;
  color: var(--mist);
}

.page-faq .faq-hero__aside-note a,
.page-faq .faq-item__a a {
  color: var(--brick);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.page-faq .faq-hero__figure {
  margin: 0;
}

.page-faq .faq-hero__figure img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 10 / 7;
  object-fit: cover;
  border-radius: var(--radius-lg);
}

.page-faq .faq-hero__cap {
  margin-top: 10px;
  font-size: 12px;
  letter-spacing: .08em;
  color: var(--pale);
}

/* ---------- 主体骨架 ---------- */
.page-faq .faq-body {
  padding-bottom: var(--space-section);
}

.page-faq .faq-body__grid {
  display: grid;
  gap: 40px;
}

/* ---------- 左侧索引 ---------- */
.page-faq .faq-index {
  border-top: 2px solid var(--deep);
  padding-top: 16px;
}

.page-faq .faq-index__head {
  margin-bottom: 16px;
}

.page-faq .faq-index__ruler {
  display: block;
  width: 120px;
  max-width: 100%;
  height: 12px;
  color: var(--brass);
}

.page-faq .faq-index__title {
  margin: 10px 0 0;
  font-size: 12px;
  letter-spacing: .08em;
  color: var(--mist);
}

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

.page-faq .faq-index__list > li:nth-child(1) { --faq-accent: var(--brick); }
.page-faq .faq-index__list > li:nth-child(2) { --faq-accent: var(--navy); }
.page-faq .faq-index__list > li:nth-child(3) { --faq-accent: var(--brass); }
.page-faq .faq-index__list > li:nth-child(4) { --faq-accent: var(--brick-lt); }
.page-faq .faq-index__list > li:nth-child(5) { --faq-accent: var(--mist); }
.page-faq .faq-index__list > li:nth-child(6) { --faq-accent: var(--deep); }

.page-faq .faq-index__link {
  display: flex;
  gap: 10px;
  align-items: baseline;
  padding: 9px 0 9px 12px;
  border-left: 3px solid var(--faq-accent, var(--mist));
  text-decoration: none;
  color: var(--mist);
  font-family: var(--font-title);
  font-size: 15px;
  line-height: 1.4;
  transition: background-color 200ms var(--ease), padding-left 200ms var(--ease), color 200ms var(--ease);
}

.page-faq .faq-index__link:hover,
.page-faq .faq-index__link:focus-visible {
  background: var(--paper-old);
  color: var(--deep);
  padding-left: 16px;
}

.page-faq .faq-index__num {
  flex: 0 0 auto;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .08em;
  color: var(--faq-accent, var(--mist));
}

/* ---------- 问答分组 ---------- */
.page-faq .faq-group--1 { --faq-accent: var(--brick); }
.page-faq .faq-group--2 { --faq-accent: var(--navy); }
.page-faq .faq-group--3 { --faq-accent: var(--brass); }
.page-faq .faq-group--4 { --faq-accent: var(--brick-lt); }
.page-faq .faq-group--5 { --faq-accent: var(--mist); }
.page-faq .faq-group--6 { --faq-accent: var(--deep); }

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

.page-faq .faq-group + .faq-group {
  margin-top: 52px;
}

.page-faq .faq-group__head {
  display: flex;
  align-items: baseline;
  gap: 12px;
  padding-top: 16px;
  border-top: 3px solid var(--faq-accent, var(--brick));
  margin-bottom: 14px;
}

.page-faq .faq-group__num {
  flex: 0 0 auto;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .08em;
  color: var(--faq-accent, var(--brick));
}

.page-faq .faq-group__title {
  margin: 0;
  font-family: var(--font-title);
  font-weight: 700;
  font-size: clamp(22px, 2.8vw, 30px);
  line-height: 1.25;
  color: var(--deep);
}

.page-faq .faq-group__note {
  margin: 0 0 22px;
  max-width: 40em;
  font-family: var(--font-body);
  font-size: 15px;
  line-height: 1.85;
  letter-spacing: .02em;
  color: var(--mist);
}

.page-faq .faq-group__figure {
  margin: 0 0 22px;
  max-width: 620px;
}

.page-faq .faq-group__figure img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 25 / 17;
  object-fit: cover;
  border-radius: var(--radius-lg);
}

/* ---------- 条目 ---------- */
.page-faq .faq-item {
  background: var(--white);
  border: 1px solid var(--faq-rule);
  border-left-width: 4px;
  border-left-color: var(--faq-accent, var(--brick));
  border-radius: var(--radius);
  margin-bottom: 12px;
  overflow: hidden;
}

.page-faq .faq-item__q {
  display: grid;
  grid-template-columns: 46px minmax(0, 1fr) 20px;
  gap: 10px;
  align-items: start;
  padding: 16px;
  cursor: pointer;
  list-style: none;
  font-family: var(--font-title);
  font-weight: 600;
  font-size: 16px;
  line-height: 1.55;
  color: var(--deep);
  transition: background-color 200ms var(--ease);
}

.page-faq .faq-item__q::-webkit-details-marker { display: none; }
.page-faq .faq-item__q::marker { content: ""; }

.page-faq .faq-item__q:hover,
.page-faq .faq-item__q:focus-visible {
  background: var(--paper-old);
}

.page-faq .faq-item[open] > .faq-item__q {
  background: var(--paper-old);
}

.page-faq .faq-item__num {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .08em;
  color: var(--faq-accent, var(--brick));
  padding-top: 5px;
}

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

.page-faq .faq-item__sign {
  position: relative;
  justify-self: end;
  width: 14px;
  height: 14px;
  margin-top: 6px;
}

.page-faq .faq-item__sign::before,
.page-faq .faq-item__sign::after {
  content: "";
  position: absolute;
  background: var(--faq-accent, var(--brick));
  border-radius: 1px;
  transition: transform 200ms var(--ease), opacity 200ms var(--ease);
}

.page-faq .faq-item__sign::before { left: 0; top: 6px; width: 14px; height: 2px; }
.page-faq .faq-item__sign::after { left: 6px; top: 0; width: 2px; height: 14px; }

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

.page-faq .faq-item__a {
  padding: 6px 18px 20px 56px;
  animation: faqRise 220ms var(--ease);
}

.page-faq .faq-item__a p {
  margin: 0 0 12px;
  max-width: 40em;
  font-family: var(--font-body);
  font-size: var(--fs-body);
  line-height: 1.9;
  letter-spacing: .02em;
  color: var(--ink);
}

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

@keyframes faqRise {
  from { opacity: 0; transform: translateY(-6px); }
  to { opacity: 1; transform: translateY(0); }
}

/* ---------- 分组联动 ---------- */
.page-faq .faq-group__more {
  margin: 18px 0 0;
}

.page-faq .faq-group__more a {
  font-family: var(--font-title);
  font-size: 14px;
  font-weight: 600;
  color: var(--brick);
  text-decoration: none;
  border-bottom: 1px solid rgba(165, 67, 43, .35);
  padding-bottom: 2px;
  transition: border-color 200ms var(--ease), color 200ms var(--ease);
}

.page-faq .faq-group__more a:hover,
.page-faq .faq-group__more a:focus-visible {
  border-bottom-color: var(--brick);
  color: var(--deep);
}

/* ---------- 收束区 ---------- */
.page-faq .faq-cta {
  background: var(--deep);
  padding: 48px 0;
}

.page-faq .faq-cta__inner {
  display: grid;
  gap: 24px;
}

.page-faq .faq-cta__title {
  margin: 0 0 12px;
  font-family: var(--font-title);
  font-weight: 700;
  font-size: clamp(22px, 2.6vw, 32px);
  line-height: 1.3;
  color: var(--white);
}

.page-faq .faq-cta__text {
  margin: 0;
  max-width: 40em;
  font-family: var(--font-body);
  font-size: var(--fs-body);
  line-height: 1.9;
  letter-spacing: .02em;
  color: rgba(244, 239, 230, .84);
}

.page-faq .faq-cta__main {
  background: var(--brick);
  border-color: var(--brick);
}

/* ---------- 响应式 ---------- */
@media (max-width: 640px) {
  .page-faq .faq-item__q {
    grid-template-columns: 38px minmax(0, 1fr) 18px;
    gap: 8px;
    padding: 14px;
    font-size: 15.5px;
  }

  .page-faq .faq-item__a {
    padding: 4px 14px 18px 48px;
  }

  .page-faq .faq-group__more a {
    font-size: 13.5px;
  }
}

@media (min-width: 900px) {
  .page-faq .faq-hero {
    padding-top: 44px;
    padding-bottom: 72px;
  }

  .page-faq .faq-hero__inner {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    gap: 56px;
    align-items: center;
  }

  .page-faq .faq-hero__figure {
    margin-top: 28px;
  }

  .page-faq .faq-group + .faq-group {
    margin-top: 76px;
  }

  .page-faq .faq-cta {
    padding: 64px 0;
  }

  .page-faq .faq-cta__inner {
    grid-template-columns: minmax(0, 1fr) auto;
    gap: 48px;
    align-items: center;
  }
}

@media (min-width: 1000px) {
  .page-faq .faq-body__grid {
    grid-template-columns: minmax(0, 3fr) minmax(0, 8fr);
    gap: 64px;
    align-items: start;
  }

  .page-faq .faq-index {
    position: sticky;
    top: 100px;
  }
}

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

  .page-faq .faq-index__link,
  .page-faq .faq-item__q,
  .page-faq .faq-item__sign::before,
  .page-faq .faq-item__sign::after,
  .page-faq .faq-group__more a {
    transition: none;
  }
}
<<<END>>>