.page-faq {
  --faq-rail: 236px;
  --faq-dash: var(--sand-deep);
}

.page-faq .visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px
  ;
  margin: -1px;
  padding: 0;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
  border: 0;
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  padding-block: clamp(1.5rem, 3.5vw, 2.5rem) clamp(2.5rem, 6vw, 4.5rem);
}

.page-faq .faq-hero__grid {
  display: grid;
  gap: clamp(1.75rem, 4vw, 3.25rem);
  margin-top: clamp(1.5rem, 3vw, 2.25rem);
}

.page-faq .faq-hero__title {
  margin: 0.6rem 0 1rem;
  font-family: var(--font-sans);
  font-weight: 900;
  font-size: clamp(2rem, 5.8vw, 4.2rem);
  line-height: 1.06;
  letter-spacing: -0.022em;
  max-width: 16ch;
}

.page-faq .faq-hero__text {
  margin: 0 0 1.6rem;
  max-width: 58ch;
  font-size: var(--fs-body);
  line-height: 1.78;
}

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

.page-faq .faq-hero__media {
  margin: 0;
  aspect-ratio: 3 / 2;
  overflow: hidden;
  border: var(--line) solid var(--ink);
  box-shadow: var(--shadow-hard);
  background: var(--night);
}

.page-faq .faq-hero__media img {
  display: block;
  width: 100%;
  height: 100%;
  max-width: 100%;
  object-fit: cover;
  filter: saturate(0.72) contrast(1.05);
}

@media (min-width: 900px) {
  .page-faq .faq-hero__grid {
    grid-template-columns: minmax(0, 1.02fr) minmax(0, 0.98fr);
    align-items: center;
  }

  .page-faq .faq-hero__media {
    aspect-ratio: 2 / 1;
  }
}

/* ---------- 三步路径 ---------- */
.page-faq .faq-steps {
  border-top: var(--line) solid var(--ink);
}

.page-faq .faq-steps__grid {
  display: grid;
  gap: clamp(1.75rem, 4vw, 3rem);
}

.page-faq .faq-steps__media {
  margin: 0;
  aspect-ratio: 5 / 4;
  overflow: hidden;
  border: var(--line) solid var(--ink);
  box-shadow: var(--shadow-hard);
  background: var(--sand-deep);
}

.page-faq .faq-steps__media img {
  display: block;
  width: 100%;
  height: 100%;
  max-width: 100%;
  object-fit: cover;
  filter: saturate(0.7);
}

.page-faq .faq-steps__title {
  margin: 0.6rem 0 0;
  font-size: clamp(1.6rem, 3.4vw, 2.6rem);
  font-weight: 900;
  letter-spacing: -0.015em;
  line-height: 1.15;
}

.page-faq .faq-steps__list {
  counter-reset: faqstep;
  list-style: none;
  margin: 1.6rem 0 0;
  padding: 0;
  display: grid;
  gap: 0.9rem;
}

.page-faq .faq-steps__list li {
  counter-increment: faqstep;
  position: relative;
  padding: 1.05rem 1.2rem 1.05rem 4.2rem;
  background: var(--warm);
  border: var(--line) solid var(--ink);
  box-shadow: var(--shadow-hard-sm);
}

.page-faq .faq-steps__list li::before {
  content: "0" counter(faqstep);
  position: absolute;
  left: 1.15rem;
  top: 1.1rem;
  font-family: var(--font-mono);
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--gold);
  line-height: 1;
}

.page-faq .faq-steps__label {
  margin: 0 0 0.35rem;
  font-size: 1.02rem;
  font-weight: 800;
  line-height: 1.45;
}

.page-faq .faq-steps__list p {
  margin: 0;
  font-size: 0.94rem;
  line-height: 1.72;
  color: var(--ink);
}

@media (min-width: 880px) {
  .page-faq .faq-steps__grid {
    grid-template-columns: minmax(0, 0.92fr) minmax(0, 1.08fr);
    align-items: center;
  }
}

/* ---------- 问答主体 ---------- */
.page-faq .faq-body {
  border-top: var(--line) solid var(--ink);
}

.page-faq .faq-body__grid {
  display: grid;
  gap: clamp(1.5rem, 3vw, 2.5rem);
}

/* 分类轨道 */
.page-faq .faq-track__label {
  margin: 0 0 0.75rem;
}

.page-faq .faq-track__nav {
  display: flex;
  gap: 0.5rem;
  overflow-x: auto;
  padding-bottom: 0.4rem;
  scrollbar-width: thin;
}

.page-faq .faq-track__link {
  flex: 0 0 auto;
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
  padding: 0.62rem 0.9rem;
  background: var(--warm);
  border: var(--line) solid var(--ink);
  color: var(--ink);
  text-decoration: none;
  font-size: var(--fs-small);
  font-weight: 700;
  white-space: nowrap;
  transition: background-color 0.18s var(--ease), color 0.18s var(--ease), border-color 0.18s var(--ease);
}

.page-faq .faq-track__link:hover,
.page-faq .faq-track__link:focus-visible {
  background: var(--ink);
  color: var(--warm);
}

.page-faq .faq-track__link:hover .faq-track__idx,
.page-faq .faq-track__link:focus-visible .faq-track__idx {
  color: var(--flare);
}

.page-faq .faq-track__idx {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  font-weight: 700;
  color: var(--gold);
  transition: color 0.18s var(--ease);
}

/* 分类区块 */
.page-faq .faq-cat {
  scroll-margin-top: 1.75rem;
}

.page-faq .faq-cat + .faq-cat {
  margin-top: clamp(2.25rem, 5.5vw, 4rem);
}

.page-faq .faq-cat__head {
  display: flex;
  align-items: baseline;
  gap: 0.85rem;
  padding-bottom: 0.75rem;
  margin-bottom: 1.15rem;
  border-bottom: var(--line) solid var(--ink);
}

.page-faq .faq-cat__idx {
  font-family: var(--font-mono);
  font-size: clamp(1.4rem, 2.8vw, 2.1rem);
  font-weight: 700;
  line-height: 1;
  color: var(--flare);
}

.page-faq .faq-cat__title {
  margin: 0;
  font-size: clamp(1.22rem, 2.4vw, 1.8rem);
  font-weight: 900;
  letter-spacing: -0.012em;
  line-height: 1.25;
}

/* 手风琴 */
.page-faq .accordion {
  display: grid;
  gap: 0.8rem;
}

.page-faq .accordion__item {
  background: var(--warm);
  border: var(--line) solid var(--ink);
  box-shadow: var(--shadow-hard-sm);
  transition: box-shadow 0.2s var(--ease), transform 0.2s var(--ease);
}

.page-faq .accordion__item:hover {
  box-shadow: var(--shadow-hard);
  transform: translate(-1px, -1px);
}

.page-faq .accordion__trigger {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 1rem 1.1rem;
  background: transparent;
  border: 0;
  cursor: pointer;
  text-align: left;
  font-family: var(--font-sans);
  font-size: 1rem;
  font-weight: 700;
  line-height: 1.5;
  color: var(--ink);
}

.page-faq .accordion__trigger:focus-visible {
  outline: var(--line) solid var(--glacier-deep);
  outline-offset: 2px;
}

.page-faq .accordion__trigger::after {
  content: "";
  flex: 0 0 auto;
  width: 22px;
  height: 22px;
  border: 2px solid var(--ink);
  background-color: var(--warm);
  background-image:
    linear-gradient(var(--ink), var(--ink)),
    linear-gradient(var(--ink), var(--ink));
  background-position: center, center;
  background-size: 12px 2px, 2px 12px;
  background-repeat: no-repeat, no-repeat;
  transition: background-size 0.2s var(--ease), background-color 0.2s var(--ease);
}

.page-faq .accordion__trigger[aria-expanded="true"]::after {
  background-color: var(--gold);
  background-size: 12px 2px, 2px 0;
}

.page-faq .accordion__panel {
  overflow: hidden;
  padding: 0.9rem 1.1rem 1.15rem;
  border-top: 2px dashed var(--faq-dash);
  animation: faq-panel-in 0.24s var(--ease);
}

.page-faq .accordion__trigger[aria-expanded="false"] + .accordion__panel {
  display: none;
}

.page-faq .accordion__panel p {
  margin: 0;
  max-width: 66ch;
  font-size: 0.96rem;
  line-height: 1.78;
}

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

/* ---------- 底部行动 ---------- */
.page-faq .faq-cta__box {
  display: grid;
  gap: 1rem;
  justify-items: start;
  padding: clamp(1.75rem, 4vw, 3rem);
  background: var(--night);
  border: var(--line) solid var(--ink);
  box-shadow: var(--shadow-hard);
  color: var(--warm);
}

.page-faq .faq-cta__title {
  margin: 0;
  font-size: clamp(1.5rem, 3.2vw, 2.35rem);
  font-weight: 900;
  letter-spacing: -0.015em;
  color: var(--warm);
}

.page-faq .faq-cta__text {
  margin: 0;
  max-width: 60ch;
  font-size: var(--fs-body);
  line-height: 1.75;
  color: var(--sand);
}

.page-faq .faq-cta__links {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-top: 0.35rem;
}

/* ---------- 桌面端：左轨道 + 右问答 ---------- */
@media (min-width: 960px) {
  .page-faq .faq-body__grid {
    grid-template-columns: var(--faq-rail) minmax(0, 1fr);
    gap: clamp(2rem, 3.5vw, 3.25rem);
    align-items: start;
  }

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

  .page-faq .faq-track__nav {
    flex-direction: column;
    overflow: visible;
    padding-bottom: 0;
    gap: 0;
  }

  .page-faq .faq-track__link {
    width: 100%;
    padding: 0.72rem 0.95rem;
  }

  .page-faq .faq-track__link + .faq-track__link {
    margin-top: calc(var(--line) * -1);
  }
}

@media (min-width: 1200px) {
  .page-faq {
    --faq-rail: 260px;
  }
}

/* ---------- 减少动态 ---------- */
@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-hero__media img,
  .page-faq .faq-steps__media img {
    filter: none;
  }

  .page-faq .accordion__item,
  .page-faq .accordion__trigger::after,
  .page-faq .faq-track__link {
    transition: none;
  }

  .page-faq .accordion__panel {
    animation: none;
  }
}
<<<END>>>