.page-faq {
  --faq-hair: rgba(201, 214, 208, .18);
  --faq-hair-neon: rgba(79, 224, 164, .38);
  --faq-surface: rgba(5, 29, 23, .55);
  --faq-surface-deep: rgba(5, 29, 23, .86);
  --faq-cut: 16px;

  position: relative;
  display: block;
  overflow-x: clip;
  background-color: var(--night);
  color: var(--warm);
  font-size: var(--fs-body);
  line-height: 1.75;
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  padding: clamp(2.2rem, 5.5vw, 3.6rem) 0 clamp(1.8rem, 4vw, 2.8rem);
  border-bottom: 1px solid var(--faq-hair);
  background-image:
    linear-gradient(180deg, rgba(18, 27, 51, .58), rgba(10, 58, 44, 0) 66%),
    repeating-linear-gradient(90deg, rgba(245, 239, 228, .03) 0 88px, rgba(245, 239, 228, 0) 88px 176px);
}

.page-faq .faq-hero .breadcrumb {
  margin-bottom: clamp(1.4rem, 3vw, 2.2rem);
  font-size: var(--fs-label);
  letter-spacing: .06em;
  color: var(--sage);
}

.page-faq .faq-hero .breadcrumb a {
  color: var(--silver);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: border-color var(--dur) var(--ease), color var(--dur) var(--ease);
}

.page-faq .faq-hero .breadcrumb a:hover,
.page-faq .faq-hero .breadcrumb a:focus-visible {
  color: var(--neon);
  border-bottom-color: var(--neon);
}

.page-faq .faq-hero .breadcrumb .diag {
  margin: 0 .55rem;
  color: var(--sage);
}

.page-faq .faq-hero__lead {
  max-width: 46rem;
}

.page-faq .faq-hero__lead .anno {
  display: flex;
  align-items: center;
  gap: .7rem;
  margin: 0 0 1rem;
  color: var(--neon);
  text-transform: uppercase;
  letter-spacing: .18em;
  font-size: var(--fs-anno);
}

.page-faq .faq-hero__lead .anno::before {
  content: "";
  width: 42px;
  height: 2px;
  flex: 0 0 auto;
  background: var(--neon);
}

.page-faq .faq-hero__lead .display {
  margin: 0 0 1.1rem;
  color: var(--warm);
}

.page-faq .faq-hero__lead .prose {
  max-width: 40rem;
  margin: 0;
  color: var(--silver);
}

.page-faq .faq-hero__meta {
  display: flex;
  flex-wrap: wrap;
  gap: .5rem 1.6rem;
  margin: 1.6rem 0 0;
  padding: 0;
  list-style: none;
  font-size: var(--fs-label);
  letter-spacing: .08em;
  color: var(--sage);
}

.page-faq .faq-hero__meta .num {
  color: var(--warm);
  font-size: 1.05rem;
}

/* ---------- 首图 ---------- */
.page-faq .faq-banner {
  position: relative;
  margin: 0;
  border-bottom: 1px solid var(--faq-hair);
  overflow: hidden;
}

.page-faq .faq-banner img {
  display: block;
  width: 100%;
  height: clamp(170px, 32vw, 400px);
  object-fit: cover;
  filter: saturate(.82) contrast(1.1) brightness(.7);
}

.page-faq .faq-banner::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background-image:
    linear-gradient(rgba(79, 224, 164, .07) 1px, transparent 1px),
    linear-gradient(90deg, rgba(79, 224, 164, .07) 1px, transparent 1px);
  background-size: 52px 52px;
  mix-blend-mode: screen;
}

.page-faq .faq-banner__cap {
  position: absolute;
  left: var(--gutter);
  right: var(--gutter);
  bottom: clamp(.8rem, 2vw, 1.4rem);
  z-index: 1;
  max-width: 34rem;
  font-size: var(--fs-note);
  line-height: 1.6;
  color: var(--warm);
  text-shadow: 0 2px 12px rgba(2, 12, 9, .85);
}

/* ---------- 分组跳转 ---------- */
.page-faq .faq-jump {
  border-bottom: 1px solid var(--faq-hair);
  background: rgba(5, 29, 23, .42);
}

.page-faq .faq-jump__list {
  display: flex;
  flex-wrap: wrap;
  gap: .5rem .7rem;
  margin: 0;
  padding: 1rem 0;
  list-style: none;
}

.page-faq .faq-jump__link {
  display: inline-block;
  padding: .42rem .85rem;
  border: 1px solid var(--faq-hair);
  color: var(--silver);
  font-size: var(--fs-label);
  letter-spacing: .08em;
  text-decoration: none;
  font-family: var(--font-mono);
  transition: color var(--dur) var(--ease), border-color var(--dur) var(--ease), background var(--dur) var(--ease);
}

.page-faq .faq-jump__link:hover,
.page-faq .faq-jump__link:focus-visible {
  color: var(--warm);
  border-color: var(--neon);
  background: rgba(79, 224, 164, .1);
}

/* ---------- 问答分组 ---------- */
.page-faq .faq-block {
  padding: clamp(2.4rem, 6vw, 4.2rem) 0;
  border-bottom: 1px solid var(--faq-hair);
}

.page-faq .faq-block--indigo {
  background-color: var(--indigo);
  background-image: linear-gradient(180deg, rgba(10, 58, 44, .5), rgba(18, 27, 51, 0) 55%);
}

.page-faq .faq-block__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.4rem;
}

.page-faq .faq-block__marker {
  display: flex;
  align-items: baseline;
  gap: 1rem;
}

.page-faq .faq-block__no {
  font-size: clamp(2rem, 6vw, 3.2rem);
  line-height: 1;
  letter-spacing: -.04em;
  color: var(--neon);
  opacity: .85;
}

.page-faq .faq-block__no::after {
  content: "";
  display: block;
  width: 38px;
  height: 2px;
  margin-top: .7rem;
  background: var(--neon);
}

.page-faq .faq-block__icon {
  display: inline-flex;
  margin-left: auto;
}

.page-faq .faq-block__icon svg {
  width: 28px;
  height: 28px;
  fill: none;
  stroke: var(--silver);
  stroke-width: 1.3;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.page-faq .faq-block__body .h2 {
  margin: 0 0 .7rem;
  color: var(--warm);
}

.page-faq .faq-block__body .prose {
  max-width: 42rem;
  margin: 0 0 1.4rem;
  font-size: var(--fs-note);
  line-height: 1.7;
}

.page-faq .faq-block__body .prose a {
  color: var(--neon);
  text-decoration: none;
  border-bottom: 1px solid var(--faq-hair-neon);
  transition: border-color var(--dur) var(--ease);
}

.page-faq .faq-block__body .prose a:hover,
.page-faq .faq-block__body .prose a:focus-visible {
  border-bottom-color: var(--neon);
}

.page-faq .faq-block__content {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.6rem;
}

/* ---------- 手风琴条目 ---------- */
.page-faq .qa {
  display: grid;
  gap: .65rem;
}

.page-faq .qa__item {
  position: relative;
  background: var(--faq-surface);
  border: 1px solid var(--faq-hair);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - var(--faq-cut)), calc(100% - var(--faq-cut)) 100%, 0 100%);
  transition: border-color var(--dur) var(--ease), background var(--dur) var(--ease);
}

.page-faq .qa__item:hover {
  border-color: rgba(79, 224, 164, .34);
}

.page-faq .qa__item[open] {
  border-color: var(--faq-hair-neon);
  background: var(--faq-surface-deep);
}

.page-faq .qa__q {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  align-items: baseline;
  gap: .75rem;
  padding: 1rem 1.1rem;
  cursor: pointer;
  list-style: none;
  font-size: 1.02rem;
  font-weight: 600;
  line-height: 1.55;
  color: var(--warm);
}

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

.page-faq .qa__q::marker {
  content: "";
}

.page-faq .qa__no {
  font-size: .82rem;
  letter-spacing: .1em;
  color: var(--neon);
  opacity: .9;
}

.page-faq .qa__q::after {
  content: "+";
  grid-column: 3;
  font-family: var(--font-mono);
  font-size: 1.2rem;
  line-height: 1;
  color: var(--neon);
}

.page-faq .qa__item[open] .qa__q::after {
  content: "\2212";
}

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

.page-faq .qa__a {
  padding: 0 1.1rem 1.1rem;
  font-size: var(--fs-note);
  line-height: 1.72;
  color: var(--silver);
}

.page-faq .qa__a p {
  margin: 0;
  max-width: 46rem;
}

/* ---------- 侧栏图 ---------- */
.page-faq .faq-aside {
  margin: 0;
  border: 1px solid var(--faq-hair);
  background: var(--faq-surface);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 18px), calc(100% - 18px) 100%, 0 100%);
}

.page-faq .faq-aside img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
  filter: saturate(.8) contrast(1.08) brightness(.78);
}

.page-faq .faq-aside__cap {
  padding: .85rem 1rem 1rem;
  font-size: var(--fs-anno);
  line-height: 1.6;
  letter-spacing: .04em;
  color: var(--sage);
  border-top: 1px dashed rgba(201, 214, 208, .2);
}

/* ---------- 数据带 ---------- */
.page-faq .faq-band {
  padding: 1.5rem 0;
  border-bottom: 1px solid var(--faq-hair);
  border-top: 1px solid var(--faq-hair-neon);
  background: var(--indigo);
}

.page-faq .faq-band--wine {
  background: var(--wine);
  border-top-color: rgba(240, 180, 41, .35);
}

.page-faq .faq-band__list {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: 1.1rem 1.8rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-faq .faq-band__item {
  display: flex;
  flex-direction: column;
  gap: .3rem;
  padding-left: 1rem;
  border-left: 2px solid var(--faq-hair-neon);
}

.page-faq .faq-band__label {
  font-size: var(--fs-label);
  line-height: 1.55;
  letter-spacing: .04em;
  color: var(--silver);
}

/* ---------- 结尾通道 ---------- */
.page-faq .faq-cta {
  padding: clamp(2.4rem, 6vw, 4rem) 0;
  background: var(--ink);
  background-image: repeating-linear-gradient(90deg, rgba(79, 224, 164, .05) 0 60px, rgba(79, 224, 164, 0) 60px 120px);
}

.page-faq .faq-cta__panel {
  padding: clamp(1.5rem, 4vw, 2.6rem);
  background: var(--wine);
  border: 1px solid rgba(245, 239, 228, .16);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 26px), calc(100% - 26px) 100%, 0 100%);
}

.page-faq .faq-cta__panel .anno {
  margin: 0 0 .9rem;
  color: var(--amber);
  letter-spacing: .18em;
  font-size: var(--fs-anno);
  text-transform: uppercase;
}

.page-faq .faq-cta__panel .h3 {
  margin: 0 0 .8rem;
  color: var(--warm);
}

.page-faq .faq-cta__panel .prose {
  max-width: 40rem;
  margin: 0 0 1.5rem;
  font-size: var(--fs-note);
  line-height: 1.7;
  color: var(--silver);
}

.page-faq .faq-cta__contact {
  display: grid;
  grid-template-columns: 1fr;
  gap: .7rem;
  margin: 0 0 1.6rem;
  padding: 0;
  list-style: none;
}

.page-faq .faq-cta__row {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: .3rem .9rem;
  padding-bottom: .6rem;
  border-bottom: 1px dashed rgba(245, 239, 228, .18);
}

.page-faq .faq-cta__k {
  flex: 0 0 auto;
  min-width: 5.2rem;
  font-size: var(--fs-anno);
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--amber);
}

.page-faq .faq-cta__v {
  font-family: var(--font-mono);
  font-size: .96rem;
  letter-spacing: .02em;
  color: var(--warm);
  overflow-wrap: anywhere;
}

.page-faq .faq-cta__actions {
  display: flex;
  flex-wrap: wrap;
  gap: .7rem;
}

.page-faq .faq-cta__actions .btn {
  text-decoration: none;
}

/* ---------- 响应式 ---------- */
@media (min-width: 640px) {
  .page-faq .faq-cta__contact {
    grid-template-columns: repeat(auto-fit, minmax(210px, 1fr));
  }

  .page-faq .faq-cta__row {
    flex-direction: column;
    align-items: flex-start;
    border-bottom: 1px solid rgba(245, 239, 228, .16);
    padding-bottom: .8rem;
  }
}

@media (min-width: 880px) {
  .page-faq .faq-block__grid {
    grid-template-columns: 96px minmax(0, 1fr);
    gap: 2.6rem;
  }

  .page-faq .faq-block__marker {
    flex-direction: column;
    align-items: flex-start;
    gap: 1.1rem;
    position: sticky;
    top: 6rem;
  }

  .page-faq .faq-block__icon {
    margin-left: 0;
  }

  .page-faq .faq-block__content {
    grid-template-columns: minmax(0, 1fr) 300px;
    gap: 2rem;
    align-items: start;
  }

  .page-faq .faq-aside {
    position: sticky;
    top: 6rem;
  }

  /* 宽屏下答案常驻展开，阅读不必反复点击 */
  .page-faq .qa__item .qa__a {
    display: block;
  }

  .page-faq .qa__q {
    cursor: default;
    pointer-events: none;
  }

  .page-faq .qa__q::after {
    opacity: .3;
  }
}

@media (min-width: 1100px) {
  .page-faq .faq-block__content {
    grid-template-columns: minmax(0, 1fr) 340px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .qa__item,
  .page-faq .faq-jump__link,
  .page-faq .faq-hero .breadcrumb a {
    transition: none;
  }
}
<<<END>>>