.page-faq {
  --faq-text: var(--chalk);
  --faq-muted: var(--chalk-dim);
  --faq-line: var(--rule-soft);
  --faq-accent: var(--yellow);
  background: var(--ink);
  color: var(--faq-text);
  overflow-x: clip;
  padding-bottom: 0;
}

/* 面包屑 */
.page-faq .breadcrumb-list {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin: 0;
  padding: 18px 0 0;
  list-style: none;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.06em;
}
.page-faq .breadcrumb-list li + li::before {
  content: "/";
  margin-right: 6px;
  color: var(--steel);
}
.page-faq .breadcrumb-list a {
  color: var(--chalk-dim);
  text-decoration: none;
}
.page-faq .breadcrumb-list a:hover {
  color: var(--yellow);
}
.page-faq .breadcrumb-list [aria-current="page"] {
  color: var(--yellow);
}

/* 首屏 */
.faq-hero {
  padding: clamp(24px, 4vw, 44px) 0 clamp(28px, 5vw, 64px);
  background: linear-gradient(155deg, var(--bos) 0%, var(--ink) 62%);
  border-bottom: 1px solid var(--rule-hair);
}
.faq-hero__eyebrow {
  margin: 0 0 14px;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.18em;
  color: var(--yellow);
}
.faq-hero__title {
  margin: 0 0 18px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(2.4rem, 9vw, 5rem);
  line-height: 0.98;
  letter-spacing: -0.02em;
  transform: skewX(-4deg);
  transform-origin: left bottom;
  color: var(--chalk);
}
.faq-hero__title em {
  font-style: normal;
  color: var(--red);
}
.faq-hero__lede {
  max-width: 56ch;
  margin: 0 0 24px;
  font-size: clamp(1rem, 1.6vw, 1.1rem);
  line-height: 1.78;
  color: var(--faq-muted);
}
.faq-hero__stats {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}
.faq-chip {
  display: inline-flex;
  align-items: baseline;
  gap: 6px;
  padding: 6px 14px;
  border: 1px solid var(--rule-soft);
  border-radius: var(--radius-pill);
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.06em;
  color: var(--chalk-dim);
}
.faq-chip b {
  font-size: 0.86rem;
  color: var(--yellow);
}

/* 分类索引 */
.faq-jump {
  background: rgba(15, 42, 34, 0.6);
  border-bottom: 1px solid var(--rule-hair);
}
.faq-jump__list {
  display: flex;
  gap: 10px;
  margin: 0;
  padding: 14px 0;
  list-style: none;
  overflow-x: auto;
  scrollbar-width: thin;
}
.faq-jump__list::-webkit-scrollbar {
  height: 4px;
}
.faq-jump__list::-webkit-scrollbar-thumb {
  background: var(--rule-soft);
  border-radius: 99px;
}
.faq-jump__link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 9px 16px;
  border: 1px solid var(--rule-soft);
  border-radius: var(--radius-pill);
  font-size: 0.86rem;
  white-space: nowrap;
  text-decoration: none;
  color: var(--chalk);
  transition: transform 0.18s ease, border-color 0.18s ease, color 0.18s ease;
}
.faq-jump__link i {
  font-family: var(--font-mono);
  font-style: normal;
  font-size: 0.7rem;
  color: var(--yellow);
}
.faq-jump__link:hover {
  transform: translateY(-2px);
  border-color: var(--yellow);
  color: var(--yellow);
}
.faq-jump__link:focus-visible {
  outline: 2px solid var(--focus);
  outline-offset: 3px;
}

/* 分类区块 */
.faq-cat {
  padding: clamp(32px, 5.5vw, 68px) 0;
  border-bottom: 1px solid var(--rule-hair);
}
.faq-cat--paper {
  background: var(--paper);
  color: var(--ink);
  --faq-text: var(--ink);
  --faq-muted: rgba(11, 15, 14, 0.74);
  --faq-line: rgba(11, 15, 14, 0.18);
  --faq-accent: var(--red-deep);
}
.faq-cat__inner {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(18px, 3vw, 32px);
}
.faq-cat__num {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(1.9rem, 4vw, 2.6rem);
  line-height: 1;
  color: var(--red);
}
.faq-cat__title {
  margin: 8px 0 10px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(1.3rem, 2.6vw, 1.85rem);
  line-height: 1.22;
  letter-spacing: -0.01em;
  color: var(--faq-text);
}
.faq-cat__note {
  margin: 0;
  max-width: 36ch;
  font-size: 0.92rem;
  line-height: 1.72;
  color: var(--faq-muted);
}
.faq-cat__note a {
  color: var(--faq-accent);
  text-decoration: underline;
  text-underline-offset: 3px;
}

/* 问答条目 */
.faq-list {
  display: flex;
  flex-direction: column;
}
.faq-item {
  border-top: 1px solid var(--faq-line);
}
.faq-item summary {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 15px 0;
  cursor: pointer;
  list-style: none;
}
.faq-item summary::-webkit-details-marker {
  display: none;
}
.faq-item summary:focus-visible {
  outline: 2px solid var(--focus);
  outline-offset: 3px;
  border-radius: 4px;
}
.faq-item__num {
  flex: 0 0 auto;
  font-family: var(--font-mono);
  font-size: 0.74rem;
  line-height: 1.95;
  color: var(--faq-accent);
}
.faq-item__q {
  flex: 1 1 auto;
  font-size: 1rem;
  font-weight: 600;
  line-height: 1.55;
  color: var(--faq-text);
  transition: color 0.18s ease;
}
.faq-item__mark {
  position: relative;
  flex: 0 0 auto;
  width: 16px;
  height: 16px;
  margin-top: 5px;
  border: 1px solid var(--faq-line);
  border-radius: 50%;
  transition: transform 0.2s ease, border-color 0.2s ease;
}
.faq-item__mark::before,
.faq-item__mark::after {
  content: "";
  position: absolute;
  top: 50%;
  left: 50%;
  background: currentColor;
  transform: translate(-50%, -50%);
}
.faq-item__mark::before {
  width: 8px;
  height: 1px;
}
.faq-item__mark::after {
  width: 1px;
  height: 8px;
  transition: opacity 0.2s ease;
}
.faq-item[open] > summary .faq-item__mark {
  transform: rotate(180deg);
  border-color: var(--faq-accent);
}
.faq-item[open] > summary .faq-item__mark::after {
  opacity: 0;
}
.faq-item[open] > summary .faq-item__q {
  color: var(--faq-accent);
}
.faq-item__a {
  padding-bottom: 18px;
}
.faq-item__a p {
  margin: 0;
  padding-left: 30px;
  font-size: 0.95rem;
  line-height: 1.82;
  color: var(--faq-muted);
}

/* 图与示意 */
.faq-figure {
  margin: 22px 0 4px;
}
.faq-figure img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  border: 1px solid var(--faq-line);
  border-radius: var(--radius-card);
  object-fit: cover;
}
.faq-figure--portrait img {
  max-width: 280px;
}
.faq-figure__caption {
  margin-top: 10px;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--faq-muted);
}
.faq-gesture {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 14px;
  margin: 18px 0 6px;
  padding: 16px;
  border: 1px dashed var(--faq-line);
  border-radius: var(--radius-card);
}
.faq-gesture svg {
  flex: 0 0 auto;
  width: 96px;
  height: auto;
  color: var(--faq-accent);
}
.faq-gesture p {
  flex: 1 1 180px;
  margin: 0;
  font-size: 0.9rem;
  line-height: 1.72;
  color: var(--faq-muted);
}

/* 分类回跳 */
.faq-cat__foot {
  margin: 0;
  padding-top: 14px;
}
.faq-back {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.08em;
  text-decoration: none;
  color: var(--faq-muted);
}
.faq-back:hover {
  color: var(--faq-accent);
}
.faq-back:focus-visible {
  outline: 2px solid var(--focus);
  outline-offset: 3px;
}

/* 底部行动区 */
.faq-cta {
  padding: clamp(32px, 5vw, 64px) 0;
  background: linear-gradient(140deg, var(--pitch) 0%, var(--bos) 70%);
  border-top: 3px solid var(--red);
}
.faq-cta__inner {
  display: grid;
  gap: clamp(20px, 3vw, 36px);
}
.faq-cta__title {
  margin: 0 0 12px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(1.5rem, 3.2vw, 2.3rem);
  line-height: 1.2;
  color: var(--chalk);
}
.faq-cta__text {
  margin: 0;
  max-width: 58ch;
  font-size: 0.98rem;
  line-height: 1.78;
  color: var(--chalk-dim);
}
.faq-cta__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  align-content: start;
}

/* 中屏及以上 */
@media (min-width: 760px) {
  .faq-cat__inner {
    grid-template-columns: minmax(0, 260px) minmax(0, 1fr);
    gap: clamp(28px, 5vw, 64px);
  }
  .faq-cat__head {
    align-self: start;
  }
  .faq-item__a p {
    padding-left: 34px;
  }
  .faq-cta__inner {
    grid-template-columns: minmax(0, 1fr) auto;
    align-items: center;
  }
}

@media (min-width: 1080px) {
  .faq-cat__inner {
    grid-template-columns: minmax(0, 300px) minmax(0, 1fr);
  }
  .faq-cat__head {
    position: sticky;
    top: 96px;
  }
  .faq-figure--portrait img {
    max-width: 320px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-jump__link,
  .page-faq .faq-item__mark,
  .page-faq .faq-item__mark::after,
  .page-faq .faq-item__q {
    transition: none;
  }
  .page-faq .faq-jump__link:hover {
    transform: none;
  }
  .page-faq .faq-hero__title {
    transform: none;
  }
}
<<<END>>>