.page-faq {
  --faq-sticky-top: 6.5rem;
  --faq-index-w: 16.5rem;
  --faq-hero-ink: rgba(245, 241, 232, .82);
  --faq-hero-dim: rgba(245, 241, 232, .68);
}

.page-faq .breadcrumb {
  padding-top: 1rem;
  padding-bottom: .25rem;
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  overflow: hidden;
  background: var(--night);
  color: var(--bone);
  border-bottom: 4px solid var(--milan-red);
  padding: clamp(1.5rem, 4vw, 2.5rem) 0 clamp(2rem, 5vw, 3.25rem);
}

.page-faq .faq-hero::before {
  content: "";
  position: absolute;
  top: -32%;
  right: -18%;
  width: 62%;
  height: 176%;
  background: var(--milan-red);
  opacity: .15;
  clip-path: polygon(36% 0, 100% 0, 100% 100%, 0 100%);
  pointer-events: none;
}

.page-faq .faq-hero::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--sky), var(--teal), var(--yellow), var(--ember));
  opacity: .6;
}

.page-faq .faq-hero__grid {
  position: relative;
  z-index: 1;
  display: grid;
  gap: clamp(1.5rem, 4vw, 2.75rem);
  align-items: start;
}

.page-faq .faq-hero__text .eyebrow {
  color: var(--yellow);
}

.page-faq .faq-hero h1 {
  margin: .65rem 0 0;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(2rem, 6vw, 3.5rem);
  line-height: 1.08;
  letter-spacing: -.022em;
  color: var(--bone);
}

.page-faq .faq-hero .lede {
  margin: 1rem 0 0;
  max-width: 48ch;
  font-size: var(--fs-body);
  line-height: 1.8;
  color: var(--faq-hero-ink);
}

.page-faq .faq-hero__meta {
  margin-top: 1.4rem;
  display: flex;
  flex-wrap: wrap;
  gap: .5rem;
  align-items: center;
}

/* ---------- 首屏分组索引 ---------- */
.page-faq .faq-jump {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: .5rem;
}

.page-faq .faq-jump__link {
  display: flex;
  align-items: baseline;
  gap: .85rem;
  padding: .6rem .8rem;
  text-decoration: none;
  color: var(--bone);
  background: rgba(245, 241, 232, .06);
  border-left: 3px solid var(--milan-red);
  border-radius: 2px;
  transition: background .2s ease, border-color .2s ease, transform .2s ease;
}

.page-faq .faq-jump__link:hover {
  background: rgba(245, 241, 232, .14);
  border-left-color: var(--yellow);
  transform: translateX(3px);
}

.page-faq .faq-jump__link:focus-visible {
  outline: 2px solid var(--sky);
  outline-offset: 2px;
}

.page-faq .faq-jump__num {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: 1.5rem;
  font-weight: 700;
  line-height: 1;
  color: var(--yellow);
}

.page-faq .faq-jump__label {
  font-size: var(--fs-sm);
  font-weight: 700;
  letter-spacing: .02em;
}

/* ---------- 流程信息图 ---------- */
.page-faq .faq-flow {
  padding-top: clamp(2rem, 5vw, 3.25rem);
  padding-bottom: clamp(1.75rem, 4vw, 2.5rem);
}

.page-faq .faq-flow__head {
  margin-bottom: clamp(1rem, 2.5vw, 1.5rem);
}

.page-faq .faq-flow__head h2 {
  margin: .5rem 0 0;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: var(--fs-h2);
  line-height: 1.14;
  letter-spacing: -.015em;
  color: var(--ink);
}

.page-faq .faq-flow__lead {
  margin: .55rem 0 0;
  max-width: 56ch;
  font-size: var(--fs-body);
  line-height: 1.75;
  color: var(--ridge);
}

.page-faq .faq-flow__frame {
  border: 1px solid var(--hairline);
  background: var(--paper-white);
  box-shadow: 6px 6px 0 rgba(200, 16, 46, .12);
}

.page-faq .faq-flow__frame .media-frame__img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
}

/* ---------- 问答主体 ---------- */
.page-faq .faq-body {
  padding-top: clamp(1rem, 3vw, 1.5rem);
  padding-bottom: clamp(3rem, 7vw, 5rem);
}

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

/* ---------- 侧栏目录 ---------- */
.page-faq .faq-index__card {
  position: relative;
  overflow: hidden;
  background: var(--ink);
  color: var(--bone);
  border-top: 4px solid var(--milan-red);
  border-radius: var(--radius);
  padding: 1.15rem 1.05rem 1.3rem;
}

.page-faq .faq-index__texture {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: .12;
  pointer-events: none;
}

.page-faq .faq-index__title {
  position: relative;
  z-index: 1;
  margin: 0 0 .7rem;
  font-size: var(--fs-label);
  font-weight: 800;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--yellow);
}

.page-faq .faq-index__list {
  position: relative;
  z-index: 1;
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-faq .faq-index__link {
  display: flex;
  align-items: baseline;
  gap: .6rem;
  padding: .55rem .3rem;
  text-decoration: none;
  color: var(--bone);
  font-size: var(--fs-sm);
  border-bottom: 1px solid var(--hairline-light);
  transition: color .2s ease, padding-left .2s ease;
}

.page-faq .faq-index__link:hover {
  color: var(--yellow);
  padding-left: .6rem;
}

.page-faq .faq-index__link:focus-visible {
  outline: 2px solid var(--sky);
  outline-offset: 2px;
}

.page-faq .faq-index__num {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: .8rem;
  font-weight: 700;
  color: var(--sky);
}

.page-faq .faq-index__cta {
  position: relative;
  z-index: 1;
  display: block;
  margin-top: 1rem;
  text-align: center;
}

/* ---------- 分组与折叠条目 ---------- */
.page-faq .faq-group {
  scroll-margin-top: var(--faq-sticky-top);
}

.page-faq .faq-group + .faq-group {
  margin-top: clamp(1.75rem, 4vw, 2.75rem);
}

.page-faq .faq-group__head {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  column-gap: .85rem;
  align-items: baseline;
  padding-bottom: .7rem;
  border-bottom: 3px solid var(--ink);
}

.page-faq .faq-group__num {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: clamp(1.3rem, 3vw, 1.85rem);
  font-weight: 700;
  line-height: 1;
  letter-spacing: -.03em;
  color: var(--milan-red);
}

.page-faq .faq-group__head h2 {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: var(--fs-h3);
  letter-spacing: -.01em;
  color: var(--ink);
}

.page-faq .faq-group__lede {
  margin: .3rem 0 0;
  font-size: var(--fs-sm);
  line-height: 1.65;
  color: var(--ridge);
}

.page-faq .faq-item {
  border-bottom: 1px solid var(--hairline);
}

.page-faq .faq-item__q {
  display: flex;
  align-items: flex-start;
  gap: .7rem;
  padding: .95rem .25rem .95rem 0;
  cursor: pointer;
  list-style: none;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(1rem, 1.6vw, 1.08rem);
  line-height: 1.55;
  color: var(--ink);
  transition: color .2s ease;
}

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

.page-faq .faq-item__q:hover {
  color: var(--milan-red);
}

.page-faq .faq-item__q:focus-visible {
  outline: 2px solid var(--sky);
  outline-offset: 2px;
}

.page-faq .faq-item__marker {
  position: relative;
  flex: 0 0 auto;
  width: 1.3rem;
  height: 1.3rem;
  margin-top: .28rem;
  background: var(--bone);
  border: 1px solid var(--hairline);
  border-radius: 2px;
}

.page-faq .faq-item__marker::before,
.page-faq .faq-item__marker::after {
  content: "";
  position: absolute;
  top: 50%;
  left: 24%;
  right: 24%;
  height: 2px;
  background: var(--milan-red);
  transform: translateY(-50%);
}

.page-faq .faq-item__marker::after {
  transform: translateY(-50%) rotate(90deg);
  transition: transform .22s ease;
}

.page-faq .faq-item[open] .faq-item__marker {
  border-color: var(--milan-red);
}

.page-faq .faq-item[open] .faq-item__marker::after {
  transform: translateY(-50%) rotate(0deg);
}

.page-faq .faq-item__a {
  padding: 0 .5rem 1.1rem calc(1.3rem + .7rem);
}

.page-faq .faq-item__a p {
  margin: 0;
  max-width: 64ch;
  font-size: var(--fs-body);
  line-height: 1.78;
  color: var(--ink);
}

.page-faq .faq-item__a a {
  color: var(--milan-red-deep);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.page-faq .faq-item__a a:hover {
  color: var(--night);
}

.page-faq .faq-item__a a:focus-visible {
  outline: 2px solid var(--sky);
  outline-offset: 2px;
}

.page-faq .faq-item[open] .faq-item__a {
  animation: faq-answer-in .24s ease both;
}

@keyframes faq-answer-in {
  from {
    opacity: 0;
    transform: translateY(-4px);
  }
  to {
    opacity: 1;
    transform: none;
  }
}

/* ---------- 底部反馈条 ---------- */
.page-faq .faq-cta {
  margin-top: clamp(2rem, 5vw, 3rem);
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 1rem 1.5rem;
  padding: 1.2rem 1.3rem;
  background: var(--night);
  color: var(--bone);
  border-left: 5px solid var(--milan-red);
  border-radius: var(--radius);
}

.page-faq .faq-cta p {
  margin: 0;
  max-width: 56ch;
  font-size: var(--fs-sm);
  line-height: 1.7;
  color: var(--faq-hero-ink);
}

/* ---------- 响应式 ---------- */
@media (min-width: 760px) {
  .page-faq .faq-hero__grid {
    grid-template-columns: minmax(0, 1.35fr) minmax(0, .85fr);
  }

  .page-faq .faq-jump {
    gap: .55rem;
  }
}

@media (min-width: 900px) {
  .page-faq .faq-layout {
    grid-template-columns: var(--faq-index-w) minmax(0, 1fr);
  }

  .page-faq .faq-index {
    position: sticky;
    top: var(--faq-sticky-top);
  }
}

@media (max-width: 480px) {
  .page-faq .faq-item__a {
    padding-right: .25rem;
    padding-left: calc(1.3rem + .55rem);
  }

  .page-faq .faq-jump__num {
    font-size: 1.25rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-jump__link,
  .page-faq .faq-index__link,
  .page-faq .faq-item__marker::after,
  .page-faq .faq-item__q {
    transition: none;
  }

  .page-faq .faq-jump__link:hover {
    transform: none;
  }

  .page-faq .faq-item[open] .faq-item__a {
    animation: none;
  }
}
<<<END>>>