.page-faq {
  --faq-divider: 1px solid var(--c-line);
  --faq-rail: minmax(170px, 3fr);
  --faq-body: minmax(0, 9fr);
  background: var(--c-void);
  color: var(--c-mist);
  overflow-x: hidden;
}

/* ---------- 面包屑 ---------- */
.page-faq .faq-crumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  padding-top: clamp(16px, 3vw, 26px);
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.06em;
  color: var(--c-fog);
}

.page-faq .faq-crumb a {
  color: var(--c-cyan);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: border-color var(--dur) var(--ease);
}

.page-faq .faq-crumb a:hover,
.page-faq .faq-crumb a:focus-visible {
  border-bottom-color: var(--c-cyan);
}

.page-faq .faq-crumb .breadcrumb__sep {
  color: var(--c-violet-gray);
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  padding: clamp(26px, 4vw, 46px) 0 clamp(34px, 5vw, 62px);
}

.page-faq .faq-hero::after {
  content: "";
  position: absolute;
  left: -6%;
  bottom: 12%;
  width: 46%;
  height: 1px;
  background: linear-gradient(90deg, var(--c-nebula), var(--c-cyan) 62%, transparent);
  transform: rotate(-12deg);
  transform-origin: left center;
  opacity: 0.4;
  pointer-events: none;
}

.page-faq .faq-hero__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(24px, 4vw, 48px);
  align-items: start;
}

.page-faq .faq-hero__text {
  position: relative;
  z-index: 1;
}

.page-faq .faq-hero .eyebrow {
  margin: 0 0 14px;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.18em;
  color: var(--c-nebula);
}

.page-faq .faq-hero h1 {
  margin: 0 0 clamp(16px, 2.4vw, 24px);
  font-family: var(--font-display);
  font-size: clamp(1.75rem, 5.2vw, 3rem);
  font-weight: 700;
  line-height: 1.28;
  letter-spacing: 0.02em;
  color: var(--c-mist);
  max-width: 20em;
}

.page-faq .faq-hero__lead {
  margin: 0;
  max-width: 34em;
  font-size: clamp(0.95rem, 1.6vw, 1.06rem);
  line-height: 1.9;
  color: var(--c-fog);
}

.page-faq .faq-hero__facts {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 28px;
  list-style: none;
  margin: clamp(22px, 3vw, 34px) 0 0;
  padding: 18px 0 0;
  border-top: var(--faq-divider);
}

.page-faq .faq-hero__facts li {
  display: flex;
  align-items: baseline;
  gap: 8px;
}

.page-faq .faq-hero__k {
  font-family: var(--font-mono);
  font-size: 1rem;
  font-weight: 700;
  letter-spacing: 0.02em;
  color: var(--c-lime);
}

.page-faq .faq-hero__v {
  font-size: 0.82rem;
  color: var(--c-fog);
}

.page-faq .faq-hero__figure {
  margin: 0;
  max-width: 280px;
}

.page-faq .faq-hero__figure img {
  display: block;
  width: 100%;
  height: auto;
  border: 1px solid var(--c-line);
  object-fit: cover;
}

/* ---------- 分组索引 ---------- */
.page-faq .faq-index {
  border-top: var(--faq-divider);
  border-bottom: var(--faq-divider);
  background: var(--c-panel);
}

.page-faq .faq-index__inner {
  padding-top: clamp(20px, 3vw, 28px);
  padding-bottom: clamp(20px, 3vw, 28px);
}

.page-faq .faq-index__title {
  margin: 0 0 14px;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  font-weight: 500;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--c-fog);
}

.page-faq .faq-index__list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  list-style: none;
  margin: 0;
  padding: 0;
  background: var(--c-line);
  border: 1px solid var(--c-line);
}

.page-faq .faq-index__list li {
  background: var(--c-panel);
}

.page-faq .faq-index__list a {
  display: flex;
  align-items: baseline;
  gap: 10px;
  padding: 13px 12px;
  text-decoration: none;
  color: var(--c-mist);
  font-size: 0.88rem;
  line-height: 1.5;
  box-shadow: inset 2px 0 0 0 transparent;
  transition: background var(--dur) var(--ease),
              box-shadow var(--dur) var(--ease),
              color var(--dur) var(--ease);
}

.page-faq .faq-index__list a:hover,
.page-faq .faq-index__list a:focus-visible {
  background: rgba(34, 224, 255, 0.07);
  box-shadow: inset 2px 0 0 0 var(--c-cyan);
  color: var(--c-cyan);
}

.page-faq .faq-index__code {
  flex: 0 0 auto;
  font-family: var(--font-mono);
  font-size: 0.68rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  color: var(--c-lime);
}

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

/* ---------- 问答分组 ---------- */
.page-faq .faq-group {
  border-top: var(--faq-divider);
  padding: clamp(34px, 5.5vw, 64px) 0;
  scroll-margin-top: calc(var(--header-h-solid) + 16px);
}

.page-faq .faq-group__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(20px, 3vw, 38px);
  align-items: start;
}

.page-faq .faq-group__code {
  margin: 0 0 8px;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.18em;
  color: var(--c-nebula);
}

.page-faq .faq-group__title {
  margin: 0 0 8px;
  font-family: var(--font-display);
  font-size: clamp(1.15rem, 2.4vw, 1.45rem);
  font-weight: 700;
  line-height: 1.3;
  letter-spacing: 0.04em;
  color: var(--c-mist);
}

.page-faq .faq-group__note {
  margin: 0;
  font-size: 0.82rem;
  line-height: 1.7;
  color: var(--c-fog);
}

/* ---------- 问答条目 ---------- */
.page-faq .qa {
  position: relative;
  border: 1px solid var(--c-line);
  background: var(--c-panel);
  transition: border-color var(--dur) var(--ease);
}

.page-faq .qa + .qa {
  margin-top: 10px;
}

.page-faq .qa::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 3px;
  background: var(--c-cyan);
  transform: scaleY(0);
  transform-origin: top center;
  transition: transform var(--dur) var(--ease);
  pointer-events: none;
  z-index: 2;
}

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

.page-faq .qa:hover {
  border-color: rgba(34, 224, 255, 0.5);
}

.page-faq .qa[open] {
  border-color: var(--c-line);
}

.page-faq .qa__q {
  display: flex;
  align-items: baseline;
  gap: 14px;
  padding: 16px 18px 16px 20px;
  cursor: pointer;
  list-style: none;
  font-size: 0.98rem;
  font-weight: 600;
  line-height: 1.6;
  color: var(--c-mist);
  transition: color var(--dur) var(--ease);
}

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

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

.page-faq .qa__q:hover,
.page-faq .qa__q:focus-visible {
  color: var(--c-cyan);
}

.page-faq .qa__idx {
  flex: 0 0 auto;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  color: var(--c-fog);
  transition: color var(--dur) var(--ease);
}

.page-faq .qa[open] .qa__idx {
  color: var(--c-lime);
}

.page-faq .qa__text {
  flex: 1 1 auto;
  min-width: 0;
}

.page-faq .qa__q::after {
  content: "+";
  flex: 0 0 auto;
  font-family: var(--font-mono);
  font-size: 1.1rem;
  font-weight: 700;
  line-height: 1;
  color: var(--c-cyan);
  transition: transform var(--dur) var(--ease);
}

.page-faq .qa[open] .qa__q::after {
  content: "−";
}

.page-faq .qa__a {
  background: var(--c-mist-panel);
  color: var(--c-ink);
  padding: 18px 20px 20px;
  font-size: 0.94rem;
  line-height: 1.88;
}

.page-faq .qa__a p {
  margin: 0;
}

.page-faq .qa__a p + p {
  margin-top: 10px;
}

.page-faq .qa__a a {
  color: var(--c-nebula);
  text-decoration: none;
  border-bottom: 1px solid rgba(124, 77, 255, 0.45);
  transition: border-color var(--dur) var(--ease);
}

.page-faq .qa__a a:hover,
.page-faq .qa__a a:focus-visible {
  border-bottom-color: var(--c-nebula);
}

.page-faq .qa__figure {
  margin: 16px 0 0;
  border: 1px solid rgba(10, 15, 26, 0.16);
  background: rgba(255, 255, 255, 0.35);
}

.page-faq .qa__figure img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
}

.page-faq .qa__figure figcaption {
  padding: 10px 12px 12px;
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.04em;
  line-height: 1.6;
  color: rgba(10, 15, 26, 0.62);
}

/* ---------- 页尾找人区块 ---------- */
.page-faq .faq-fallback {
  position: relative;
  border-top: var(--faq-divider);
  padding: clamp(38px, 6vw, 70px) 0 clamp(48px, 7vw, 84px);
  overflow: hidden;
  scroll-margin-top: calc(var(--header-h-solid) + 16px);
}

.page-faq .faq-fallback::before {
  content: "";
  position: absolute;
  right: -8%;
  bottom: 14%;
  width: 44%;
  height: 1px;
  background: linear-gradient(270deg, var(--c-cyan), var(--c-nebula) 58%, transparent);
  transform: rotate(-12deg);
  transform-origin: right center;
  opacity: 0.4;
  pointer-events: none;
}

.page-faq .faq-fallback__grid {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(22px, 3vw, 38px);
  align-items: start;
}

.page-faq .faq-fallback__title {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(1.2rem, 2.6vw, 1.55rem);
  font-weight: 700;
  line-height: 1.3;
  letter-spacing: 0.04em;
  color: var(--c-mist);
}

.page-faq .faq-fallback__lead {
  margin: 0 0 clamp(18px, 2.4vw, 24px);
  max-width: 36em;
  font-size: 0.96rem;
  line-height: 1.9;
  color: var(--c-fog);
}

.page-faq .faq-fallback__channels {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 1px;
  list-style: none;
  margin: 0 0 clamp(18px, 2.4vw, 24px);
  padding: 0;
  background: var(--c-line);
  border: 1px solid var(--c-line);
}

.page-faq .faq-fallback__channels li {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 6px 14px;
  padding: 14px 16px;
  background: var(--c-panel);
}

.page-faq .faq-fallback__k {
  flex: 0 0 auto;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  color: var(--c-lime);
}

.page-faq .faq-fallback__v {
  font-size: 0.88rem;
  line-height: 1.7;
  color: var(--c-fog);
}

.page-faq .faq-fallback__card {
  border: 1px solid var(--c-line);
  background: var(--c-panel);
  padding: clamp(16px, 2.4vw, 22px);
  transition: border-color var(--dur) var(--ease),
              box-shadow var(--dur) var(--ease);
}

.page-faq .faq-fallback__card:hover,
.page-faq .faq-fallback__card:focus-within {
  border-color: var(--c-cyan);
  box-shadow: 0 0 0 1px rgba(34, 224, 255, 0.2);
}

.page-faq .faq-fallback__hint {
  margin: 12px 0 0;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.06em;
  color: var(--c-fog);
  opacity: 0.5;
  transition: opacity var(--dur) var(--ease), color var(--dur) var(--ease);
}

.page-faq .faq-fallback__card:hover .faq-fallback__hint,
.page-faq .faq-fallback__card:focus-within .faq-fallback__hint {
  opacity: 1;
  color: var(--c-cyan);
}

/* ---------- 渐显 ---------- */
.page-faq [data-reveal] {
  transition: opacity 340ms var(--ease), transform 340ms var(--ease);
}

.page-faq [data-reveal].is-visible {
  opacity: 1;
  transform: none;
}

/* ---------- 响应式 ---------- */
@media (min-width: 720px) {
  .page-faq .faq-index__list {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-faq .faq-index__list a {
    padding: 15px 16px;
  }

  .page-faq .faq-hero__figure {
    max-width: 340px;
  }

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

  .page-faq .faq-fallback__channels li {
    flex-direction: column;
    gap: 6px;
  }
}

@media (min-width: 900px) {
  .page-faq .faq-hero__grid {
    grid-template-columns: minmax(0, 1.6fr) minmax(220px, 0.7fr);
    gap: clamp(32px, 4vw, 64px);
  }

  .page-faq .faq-hero__figure {
    max-width: none;
  }

  .page-faq .faq-group__grid {
    grid-template-columns: var(--faq-rail) var(--faq-body);
    gap: clamp(28px, 3.5vw, 52px);
  }

  .page-faq .faq-group__rail {
    position: sticky;
    top: calc(var(--header-h-solid) + 26px);
  }

  .page-faq .faq-fallback__grid {
    grid-template-columns: var(--faq-rail) var(--faq-body);
    gap: clamp(28px, 3.5vw, 52px);
  }

  .page-faq .qa__q {
    padding: 18px 22px 18px 24px;
    font-size: 1rem;
  }

  .page-faq .qa__a {
    padding: 20px 24px 24px;
    font-size: 0.95rem;
  }
}

@media (min-width: 1080px) {
  .page-faq .faq-index__list {
    grid-template-columns: repeat(6, minmax(0, 1fr));
  }
}

@media (max-width: 400px) {
  .page-faq .faq-hero h1 {
    font-size: 1.6rem;
  }

  .page-faq .qa__q {
    gap: 10px;
    padding: 14px 14px 14px 16px;
  }

  .page-faq .qa__a {
    padding: 16px 14px 18px;
  }
}
<<<END>>>