.page-faq {
  --faq-index-w: 252px;
  --faq-cream-ink: #2B2318;
  --faq-cream-faint: #6B5E4C;
  background: var(--ink-900);
  color: var(--text-100);
  padding-bottom: 88px;
}

.page-faq .breadcrumb {
  padding-top: 22px;
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  margin-top: 18px;
  padding: 44px 0 56px;
  background:
    radial-gradient(120% 92% at 88% 0%, rgba(196, 58, 43, 0.17), transparent 62%),
    linear-gradient(180deg, var(--ink-800), var(--ink-900));
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  overflow: hidden;
}

.page-faq .faq-hero::after {
  content: "";
  position: absolute;
  inset: 0;
  background: repeating-linear-gradient(
    115deg,
    rgba(201, 162, 39, 0.05) 0 1px,
    transparent 1px 26px
  );
  pointer-events: none;
}

.page-faq .faq-hero__grid {
  position: relative;
  z-index: 1;
  display: grid;
  gap: 36px;
}

.page-faq .faq-hero__lead {
  margin: 18px 0 0;
  max-width: 62ch;
  font-size: 16px;
  line-height: 1.95;
  color: var(--mist-300);
}

.page-faq .faq-hero__note {
  margin: 26px 0 0;
  max-width: 64ch;
  padding: 14px 18px;
  border-left: 2px solid var(--gold-500);
  background: rgba(201, 162, 39, 0.06);
  font-size: 14px;
  line-height: 1.85;
  color: var(--mist-300);
}

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

.page-faq .faq-hero__figure img {
  width: 100%;
  height: auto;
  max-width: 100%;
  display: block;
  object-fit: cover;
  border: 1px solid var(--line-strong);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 18px), calc(100% - 18px) 100%, 0 100%);
}

.page-faq .faq-hero__figure figcaption {
  margin-top: 12px;
  font-size: 13px;
  line-height: 1.75;
  color: var(--mist-500);
}

/* ---------- 三步 ---------- */
.page-faq .steps {
  list-style: none;
  margin: 30px 0 0;
  padding: 0;
  display: grid;
  gap: 18px;
}

.page-faq .step {
  position: relative;
  padding: 20px 18px 22px;
  background: var(--ink-700);
  border: 1px solid var(--line);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 18px), calc(100% - 18px) 100%, 0 100%);
  transition: transform 0.4s var(--ease), background 0.3s var(--ease);
}

.page-faq .step:hover {
  background: #20242C;
  transform: translateY(-4px);
}

.page-faq .step__num {
  display: block;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.14em;
  color: var(--gold-500);
}

.page-faq .step__title {
  margin: 8px 0 8px;
  font-family: var(--font-display);
  font-size: 20px;
  font-weight: 700;
  color: var(--text-100);
}

.page-faq .step p {
  margin: 0;
  font-size: 14px;
  line-height: 1.85;
  color: var(--mist-300);
}

/* ---------- 主体两栏 ---------- */
.page-faq .faq-body {
  display: grid;
  gap: 36px;
  margin-top: 56px;
}

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

/* ---------- 分组 ---------- */
.page-faq .faq-group {
  margin-bottom: 52px;
  scroll-margin-top: 24px;
}

.page-faq .faq-group__head {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 8px 14px;
  padding: 0 0 14px 16px;
  border-bottom: 1px solid var(--line-strong);
  margin-bottom: 6px;
}

.page-faq .faq-group__num {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--cinnabar-400);
}

.page-faq .faq-group__head h2 {
  margin: 0;
  font-family: var(--font-display);
  font-size: 24px;
  font-weight: 700;
  letter-spacing: -0.01em;
  color: var(--text-100);
}

.page-faq .faq-group__meta {
  margin-left: auto;
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--mist-500);
}

.page-faq .faq-figure {
  margin: 22px 0 8px;
}

.page-faq .faq-figure img {
  display: block;
  width: 100%;
  height: 190px;
  max-width: 100%;
  object-fit: cover;
  border: 1px solid var(--line);
  filter: saturate(0.85) brightness(0.86);
}

.page-faq .faq-figure figcaption {
  margin-top: 10px;
  font-size: 13px;
  line-height: 1.75;
  color: var(--mist-500);
}

/* ---------- 折叠问答 ---------- */
.page-faq .q {
  position: relative;
  padding-left: 16px;
  border-bottom: 1px solid var(--line);
}

.page-faq .q::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 2px;
  background: var(--cinnabar-600);
  transform: scaleY(0);
  transform-origin: top center;
  transition: transform 0.26s var(--ease);
}

.page-faq .q[open]::before {
  transform: scaleY(1);
}

.page-faq .q__head {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 16px;
  align-items: start;
  padding: 18px 4px 18px 0;
  cursor: pointer;
  list-style: none;
  transition: color 0.2s var(--ease);
}

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

.page-faq .q__head:hover .q__title {
  color: var(--gold-300);
}

.page-faq .q__title {
  font-family: var(--font-body);
  font-size: 16px;
  font-weight: 500;
  line-height: 1.7;
  color: var(--text-100);
  transition: color 0.2s var(--ease);
}

.page-faq .q[open] .q__title {
  color: var(--gold-300);
}

.page-faq .q__mark {
  width: 9px;
  height: 9px;
  margin-top: 7px;
  border-right: 1.5px solid var(--gold-500);
  border-bottom: 1.5px solid var(--gold-500);
  transform: rotate(45deg);
  transition: transform 0.26s var(--ease);
}

.page-faq .q[open] .q__mark {
  transform: rotate(-135deg);
}

.page-faq .q__body {
  padding: 0 4px 22px 0;
  color: var(--mist-300);
  font-size: 15px;
  line-height: 1.9;
}

.page-faq .q__body p {
  margin: 0 0 12px;
  max-width: 62ch;
}

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

.page-faq .q__body ol,
.page-faq .q__body ul {
  margin: 0 0 12px;
  padding-left: 20px;
  max-width: 62ch;
}

.page-faq .q__body li {
  margin-bottom: 6px;
}

.page-faq .q__body a {
  color: var(--gold-300);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.page-faq .q__body a:hover {
  color: var(--cinnabar-400);
}

.page-faq .q__body .faq-mail {
  display: inline;
  padding: 1px 6px;
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--gold-300);
  background: rgba(201, 162, 39, 0.1);
  border: 1px dashed var(--line-gold);
}

.page-faq .faq-group__more {
  margin: 20px 0 0;
}

.page-faq .faq-group__more .btn {
  font-size: 13px;
}

/* ---------- 术语 ---------- */
.page-faq .glossary {
  margin-top: 12px;
  padding: 38px 22px 40px;
  background: var(--cream-100);
  color: var(--faq-cream-ink);
  clip-path: polygon(0 0, calc(100% - 18px) 0, 100% 18px, 100% 100%, 18px 100%, 0 calc(100% - 18px));
  scroll-margin-top: 24px;
}

.page-faq .glossary__eyebrow {
  color: var(--cinnabar-600);
}

.page-faq .glossary__title {
  margin: 10px 0 0;
  font-family: var(--font-display);
  font-size: 24px;
  font-weight: 700;
  color: #1D1710;
}

.page-faq .glossary__lead {
  margin: 10px 0 0;
  font-size: 14px;
  line-height: 1.8;
  color: var(--faq-cream-faint);
}

.page-faq .gloss-grid {
  display: grid;
  gap: 12px;
  margin-top: 26px;
}

.page-faq .gloss-card {
  display: block;
  width: 100%;
  text-align: left;
  padding: 14px 16px;
  background: transparent;
  color: inherit;
  font: inherit;
  border: 1px solid var(--cream-300);
  border-radius: 0;
  outline: 1px solid var(--cream-300);
  outline-offset: -5px;
  cursor: copy;
  transition: background 0.24s var(--ease), outline-color 0.24s var(--ease);
}

.page-faq .gloss-card:hover {
  background: rgba(196, 58, 43, 0.06);
  outline-color: var(--cinnabar-600);
}

.page-faq .gloss-card[data-copied] {
  background: rgba(196, 58, 43, 0.1);
  outline-color: var(--cinnabar-600);
}

.page-faq .gloss-card__term {
  display: block;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.1em;
  color: #1D1710;
}

.page-faq .gloss-card__desc {
  display: block;
  margin-top: 8px;
  font-size: 13px;
  line-height: 1.8;
  color: var(--faq-cream-faint);
}

/* ---------- 索引 ---------- */
.page-faq .faq-index {
  order: -1;
  background: var(--ink-800);
  border: 1px solid var(--line);
}

.page-faq .faq-index__toggle {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 14px 16px;
  cursor: pointer;
  list-style: none;
}

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

.page-faq .faq-index__hint {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--gold-500);
}

.page-faq .faq-index__toggle::after {
  content: "";
  width: 8px;
  height: 8px;
  border-right: 1.5px solid var(--gold-500);
  border-bottom: 1.5px solid var(--gold-500);
  transform: rotate(45deg);
  transition: transform 0.26s var(--ease);
}

.page-faq .faq-index[open] .faq-index__toggle::after {
  transform: rotate(-135deg);
}

.page-faq .faq-index__list {
  list-style: none;
  margin: 0;
  padding: 6px 8px 10px;
  display: grid;
  gap: 2px;
}

.page-faq .faq-index__link {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 9px 10px;
  font-size: 14px;
  color: var(--mist-300);
  text-decoration: none;
  border-left: 2px solid transparent;
  transition: background 0.2s var(--ease), color 0.2s var(--ease), border-color 0.2s var(--ease);
}

.page-faq .faq-index__link:hover,
.page-faq .faq-index__link:focus-visible {
  color: var(--gold-300);
  background: rgba(201, 162, 39, 0.07);
  border-left-color: var(--gold-500);
}

.page-faq .faq-index__count {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--mist-500);
}

.page-faq .faq-index__foot {
  margin: 0;
  padding: 12px 16px 16px;
  border-top: 1px dashed var(--line);
  font-size: 12px;
  line-height: 1.8;
  color: var(--mist-500);
}

.page-faq .faq-index__foot a {
  color: var(--gold-300);
  text-decoration: underline;
  text-underline-offset: 3px;
}

/* ---------- 桌面 ---------- */
@media (min-width: 760px) {
  .page-faq .steps {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-faq .step:not(:last-child)::after {
    content: "";
    position: absolute;
    top: 46%;
    right: -19px;
    width: 20px;
    height: 1px;
    background: linear-gradient(90deg, var(--line-gold), transparent);
    transform: rotate(-20deg);
    transform-origin: left center;
    pointer-events: none;
  }

  .page-faq .gloss-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-faq .faq-figure img {
    height: 240px;
  }
}

@media (min-width: 1000px) {
  .page-faq .faq-hero {
    padding: 56px 0 68px;
  }

  .page-faq .faq-hero__grid {
    grid-template-columns: minmax(0, 1.32fr) minmax(0, 0.68fr);
    gap: 56px;
    align-items: start;
  }

  .page-faq .faq-body {
    grid-template-columns: minmax(0, 1fr) var(--faq-index-w);
    gap: 56px;
    align-items: start;
  }

  .page-faq .faq-index {
    order: 2;
    position: sticky;
    top: 24px;
  }

  .page-faq .faq-index__toggle {
    display: none;
  }

  .page-faq .faq-index:not([open]) > .faq-index__list {
    display: grid;
  }

  .page-faq .faq-index__list {
    padding-top: 14px;
  }

  .page-faq .glossary {
    padding: 46px 40px 48px;
  }

  .page-faq .gloss-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-faq .faq-figure img {
    height: 280px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .step,
  .page-faq .q::before,
  .page-faq .q__mark,
  .page-faq .faq-index__toggle::after {
    transition: none;
  }

  .page-faq .step:hover {
    transform: none;
  }
}
<<<END>>>