.page-faq {
  --qa-rail-w: 264px;
  --qa-hairline: 1px solid var(--slate-line);
  --qa-glow: 0 22px 44px -30px rgba(47, 224, 200, 0.55);
  background: var(--deep-field);
  color: var(--ink);
  padding-bottom: 80px;
  overflow-x: hidden;
}

.page-faq *,
.page-faq *::before,
.page-faq *::after {
  box-sizing: border-box;
}

.page-faq .faq-breadcrumb,
.page-faq .faq-hero,
.page-faq .faq-layout {
  width: min(calc(100% - 32px), var(--wrap));
  margin-inline: auto;
}

/* ---------- 面包屑 ---------- */
.page-faq .faq-breadcrumb {
  padding-top: 18px;
}

.page-faq .faq-breadcrumb .breadcrumb__list {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  margin: 0;
  padding: 0;
  font-size: 13px;
}

.page-faq .faq-breadcrumb .breadcrumb__link {
  color: var(--muted);
  text-decoration: none;
  transition: color var(--t-fast) var(--ease);
}

.page-faq .faq-breadcrumb .breadcrumb__link:hover,
.page-faq .faq-breadcrumb .breadcrumb__link:focus-visible {
  color: var(--signal-cyan);
}

.page-faq .faq-breadcrumb .breadcrumb__item + .breadcrumb__item::before {
  content: "/";
  margin-right: 8px;
  color: var(--slate-line);
  font-family: var(--font-mono);
}

.page-faq .faq-breadcrumb .breadcrumb__current {
  color: var(--cyan-soft);
}

/* ---------- 页首 ---------- */
.page-faq .faq-hero {
  display: grid;
  grid-template-columns: 1fr;
  gap: 28px;
  padding: 32px 0 44px;
  border-bottom: var(--qa-hairline);
}

.page-faq .faq-hero__eyebrow {
  margin: 0 0 14px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--cyan-soft);
  text-transform: uppercase;
}

.page-faq .faq-hero__eyebrow .num {
  display: inline-block;
  padding: 2px 8px;
  margin-right: 10px;
  border: 1px solid var(--signal-cyan);
  color: var(--signal-cyan);
}

.page-faq .faq-hero__title {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(42px, 11vw, 84px);
  font-weight: 900;
  line-height: 0.94;
  letter-spacing: -0.02em;
  color: var(--ink);
}

.page-faq .faq-hero__lede {
  margin: 18px 0 0;
  max-width: 42em;
  font-size: 16px;
  line-height: 1.85;
  color: var(--ink);
}

.page-faq .faq-hero__stats {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0;
  margin: 26px 0 0;
  border-top: var(--qa-hairline);
}

.page-faq .faq-stat {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 16px;
  padding: 12px 0;
  border-bottom: var(--qa-hairline);
}

.page-faq .faq-stat__label {
  font-size: 13px;
  color: var(--muted);
  letter-spacing: 0.04em;
}

.page-faq .faq-stat__value {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 15px;
  font-weight: 500;
  font-variant-numeric: tabular-nums;
  color: var(--signal-cyan);
}

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

.page-faq .faq-hero__media .media__frame {
  position: relative;
  border: var(--qa-hairline);
  background: var(--graphite);
}

.page-faq .faq-hero__media .media__frame::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background-image: linear-gradient(to right, rgba(47, 224, 200, 0.08) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(47, 224, 200, 0.06) 1px, transparent 1px);
  background-size: 48px 48px;
}

.page-faq .faq-hero__media .media__img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
  filter: saturate(0.82) brightness(0.9) contrast(1.05);
}

.page-faq .faq-hero__media .media__caption {
  margin-top: 10px;
  font-family: var(--font-mono);
  font-size: 12px;
  line-height: 1.7;
  color: var(--muted);
}

/* ---------- 主布局 ---------- */
.page-faq .faq-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: 36px;
  padding-top: 40px;
}

/* ---------- 左侧锚点栏 ---------- */
.page-faq .faq-rail__label {
  margin: 0 0 14px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.18em;
  color: var(--muted);
  text-transform: uppercase;
}

.page-faq .faq-nav .faq-nav__list {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 0;
  padding: 0;
}

.page-faq .faq-nav .faq-nav__item {
  min-width: 0;
}

.page-faq .faq-nav .faq-nav__link {
  display: flex;
  align-items: baseline;
  gap: 10px;
  padding: 8px 12px;
  border: var(--qa-hairline);
  background: var(--graphite);
  color: var(--muted);
  font-size: 14px;
  line-height: 1.5;
  text-decoration: none;
  transition: color var(--t-fast) var(--ease), border-color var(--t-fast) var(--ease),
    background var(--t-fast) var(--ease);
}

.page-faq .faq-nav .faq-nav__link .num {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  color: inherit;
  opacity: 0.7;
}

.page-faq .faq-nav .faq-nav__link:hover,
.page-faq .faq-nav .faq-nav__link:focus-visible {
  color: var(--cyan-soft);
  border-color: var(--turf);
}

.page-faq .faq-nav .faq-nav__link.is-current,
.page-faq .faq-nav .faq-nav__link[aria-current] {
  color: var(--signal-cyan);
  border-color: var(--signal-cyan);
}

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

/* ---------- 区块 ---------- */
.page-faq .qa-block {
  scroll-margin-top: calc(var(--header-h) + 24px);
  padding-bottom: 52px;
}

.page-faq .qa-block + .qa-block {
  border-top: var(--qa-hairline);
  padding-top: 48px;
}

.page-faq .qa-block__head {
  margin-bottom: 22px;
}

.page-faq .qa-block__index {
  display: block;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.2em;
  color: var(--signal-cyan);
}

.page-faq .qa-block__title {
  margin: 10px 0 0;
  font-family: var(--font-display);
  font-size: clamp(25px, 5.6vw, 36px);
  font-weight: 800;
  line-height: 1.15;
  letter-spacing: -0.01em;
  color: var(--ink);
}

.page-faq .qa-block__title::after {
  content: "";
  display: block;
  width: 56px;
  height: 3px;
  margin-top: 14px;
  background: var(--turf);
}

.page-faq .qa-block__note {
  margin: 14px 0 0;
  max-width: 46ch;
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--muted);
}

/* ---------- 配图 ---------- */
.page-faq .qa-figure {
  margin: 0 0 24px;
}

.page-faq .qa-figure__frame {
  border: var(--qa-hairline);
  background: var(--graphite);
  overflow: hidden;
}

.page-faq .qa-figure__frame img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  object-fit: cover;
  filter: saturate(0.8) brightness(0.9);
}

.page-faq .qa-figure figcaption {
  margin-top: 10px;
  font-family: var(--font-mono);
  font-size: 12px;
  line-height: 1.7;
  color: var(--muted);
}

/* ---------- 折叠问答 ---------- */
.page-faq .qa-item {
  border-top: var(--qa-hairline);
}

.page-faq .qa-item:last-child {
  border-bottom: var(--qa-hairline);
}

.page-faq .qa-item__q {
  display: flex;
  align-items: baseline;
  gap: 12px;
  padding: 16px 4px 16px 12px;
  border-left: 2px solid transparent;
  list-style: none;
  cursor: pointer;
  font-size: 15.5px;
  font-weight: 500;
  line-height: 1.65;
  color: var(--ink);
  transition: color var(--t-fast) var(--ease), border-color var(--t-fast) var(--ease),
    background var(--t-fast) var(--ease);
}

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

.page-faq .qa-item__q::after {
  content: "+";
  margin-left: auto;
  font-family: var(--font-mono);
  font-size: 17px;
  line-height: 1;
  color: var(--muted);
  transition: color var(--t-fast) var(--ease);
}

.page-faq .qa-item[open] > .qa-item__q::after {
  content: "−";
  color: var(--signal-cyan);
}

.page-faq .qa-item__q:hover {
  color: var(--cyan-soft);
  background: rgba(30, 58, 50, 0.35);
}

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

.page-faq .qa-item[open] > .qa-item__q {
  color: var(--signal-cyan);
  border-left-color: var(--signal-cyan);
}

.page-faq .qa-item__no {
  flex: 0 0 auto;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.08em;
  color: var(--muted);
  transition: color var(--t-fast) var(--ease);
}

.page-faq .qa-item[open] .qa-item__no {
  color: var(--signal-cyan);
}

.page-faq .qa-item__text {
  min-width: 0;
}

.page-faq .qa-item__a {
  max-width: 66ch;
  padding: 2px 4px 22px 36px;
  font-size: 15px;
  line-height: 1.85;
  color: var(--ink);
  overflow-wrap: anywhere;
  animation: qa-fade var(--t-fast) var(--ease);
}

.page-faq .qa-item__a p {
  margin: 0 0 12px;
}

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

.page-faq .qa-item__a a {
  color: var(--signal-cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(47, 224, 200, 0.4);
  transition: color var(--t-fast) var(--ease), border-color var(--t-fast) var(--ease);
}

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

.page-faq .qa-src {
  margin-top: 10px;
  padding-top: 10px;
  border-top: 1px dashed var(--slate-line);
  font-family: var(--font-mono);
  font-size: 11.5px;
  line-height: 1.7;
  color: var(--muted);
}

.page-faq .qa-steps {
  list-style: none;
  counter-reset: qa-step;
  margin: 12px 0 14px;
  padding: 0;
}

.page-faq .qa-steps li {
  position: relative;
  margin-bottom: 8px;
  padding-left: 34px;
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--ink);
}

.page-faq .qa-steps li:last-child {
  margin-bottom: 0;
}

.page-faq .qa-steps li::before {
  counter-increment: qa-step;
  content: counter(qa-step, decimal-leading-zero);
  position: absolute;
  left: 0;
  top: 2px;
  font-family: var(--font-mono);
  font-size: 11.5px;
  color: var(--signal-cyan);
}

/* ---------- 底部咨询卡 ---------- */
.page-faq .faq-cta {
  margin-top: 8px;
  display: grid;
  grid-template-columns: 1fr;
  gap: 22px;
  padding: 26px 20px;
  background: linear-gradient(158deg, var(--moss-line) 0%, var(--graphite) 62%);
  border: 1px solid var(--signal-cyan);
  box-shadow: var(--qa-glow);
}

.page-faq .faq-cta__label {
  margin: 0 0 10px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--cyan-soft);
}

.page-faq .faq-cta__title {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(22px, 5vw, 30px);
  font-weight: 800;
  line-height: 1.2;
  letter-spacing: -0.01em;
  color: var(--ink);
}

.page-faq .faq-cta__text {
  margin: 12px 0 0;
  max-width: 48ch;
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--ink);
}

.page-faq .faq-cta__contacts {
  list-style: none;
  margin: 18px 0 0;
  padding: 0;
  border-top: 1px dashed var(--slate-line);
}

.page-faq .faq-cta__contacts li {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 4px 14px;
  padding: 10px 0;
  border-bottom: 1px dashed var(--slate-line);
}

.page-faq .faq-cta__key {
  flex: 0 0 auto;
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--muted);
}

.page-faq .faq-cta__val {
  font-family: var(--font-mono);
  font-size: 13.5px;
  font-variant-numeric: tabular-nums;
  color: var(--cyan-soft);
  overflow-wrap: anywhere;
}

.page-faq .faq-cta__actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 16px;
}

.page-faq .faq-cta__link {
  font-size: 14px;
  color: var(--muted);
  text-decoration: none;
  border-bottom: 1px solid var(--slate-line);
  padding-bottom: 2px;
  transition: color var(--t-fast) var(--ease), border-color var(--t-fast) var(--ease);
}

.page-faq .faq-cta__link:hover,
.page-faq .faq-cta__link:focus-visible {
  color: var(--signal-cyan);
  border-bottom-color: var(--signal-cyan);
}

@keyframes qa-fade {
  from {
    opacity: 0;
    transform: translateY(-4px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .qa-item__a {
    animation: none;
  }
  .page-faq .qa-item__q,
  .page-faq .faq-nav .faq-nav__link {
    transition: none;
  }
}

/* ---------- 窄屏适配 ---------- */
@media (max-width: 419px) {
  .page-faq .qa-item__q {
    gap: 8px;
    font-size: 15px;
  }
  .page-faq .qa-item__a {
    padding-left: 12px;
  }
}

/* ---------- 平板 ---------- */
@media (min-width: 620px) {
  .page-faq .faq-breadcrumb,
  .page-faq .faq-hero,
  .page-faq .faq-layout {
    width: min(calc(100% - 48px), var(--wrap));
  }

  .page-faq .faq-hero__stats {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 0 24px;
  }

  .page-faq .faq-stat {
    flex-direction: column;
    align-items: flex-start;
    gap: 6px;
    border-bottom: none;
    padding: 14px 0 4px;
  }

  .page-faq .faq-hero__stats {
    border-bottom: var(--qa-hairline);
  }

  .page-faq .faq-cta {
    padding: 32px 28px;
  }
}

/* ---------- 桌面 ---------- */
@media (min-width: 900px) {
  .page-faq {
    padding-bottom: 110px;
  }

  .page-faq .faq-hero {
    grid-template-columns: minmax(0, 1.4fr) minmax(0, 1fr);
    gap: 56px;
    align-items: end;
    padding: 56px 0 72px;
  }

  .page-faq .faq-hero__lede {
    font-size: 17px;
  }

  .page-faq .faq-hero__media {
    align-self: stretch;
  }

  .page-faq .faq-cta {
    grid-template-columns: minmax(0, 1fr) auto;
    align-items: center;
    gap: 32px;
    padding: 40px 44px;
  }

  .page-faq .faq-cta__actions {
    flex-direction: column;
    align-items: flex-start;
    gap: 14px;
  }
}

@media (min-width: 1040px) {
  .page-faq .faq-layout {
    grid-template-columns: var(--qa-rail-w) minmax(0, 1fr);
    gap: 64px;
    padding-top: 76px;
  }

  .page-faq .faq-rail {
    position: sticky;
    top: calc(var(--header-h) + 28px);
    align-self: start;
  }

  .page-faq .faq-nav .faq-nav__list {
    flex-direction: column;
    flex-wrap: nowrap;
    gap: 0;
    border-left: var(--qa-hairline);
  }

  .page-faq .faq-nav .faq-nav__link {
    border: none;
    background: transparent;
    padding: 11px 0 11px 16px;
    border-left: 2px solid transparent;
    margin-left: -1px;
    font-size: 14.5px;
  }

  .page-faq .faq-nav .faq-nav__link .num {
    flex: 0 0 22px;
  }

  .page-faq .faq-nav .faq-nav__link:hover,
  .page-faq .faq-nav .faq-nav__link:focus-visible {
    background: transparent;
    color: var(--cyan-soft);
    border-left-color: var(--turf);
  }

  .page-faq .faq-nav .faq-nav__link.is-current,
  .page-faq .faq-nav .faq-nav__link[aria-current] {
    background: transparent;
    color: var(--signal-cyan);
    border-left-color: var(--signal-cyan);
  }

  .page-faq .faq-rail__note {
    display: block;
    margin-top: 28px;
    padding: 16px 14px;
    border: var(--qa-hairline);
    background: var(--graphite);
  }

  .page-faq .faq-rail__note p {
    margin: 0 0 12px;
    font-size: 13px;
    line-height: 1.75;
    color: var(--muted);
  }

  .page-faq .faq-rail__cta {
    font-family: var(--font-mono);
    font-size: 12.5px;
    letter-spacing: 0.04em;
    color: var(--signal-cyan);
    text-decoration: none;
    border-bottom: 1px solid rgba(47, 224, 200, 0.45);
    transition: color var(--t-fast) var(--ease), border-color var(--t-fast) var(--ease);
  }

  .page-faq .faq-rail__cta:hover,
  .page-faq .faq-rail__cta:focus-visible {
    color: var(--cyan-soft);
    border-bottom-color: var(--cyan-soft);
  }

  .page-faq .qa-block__head {
    display: grid;
    grid-template-columns: auto minmax(0, 1fr);
    grid-template-areas:
      "index title"
      "index note";
    column-gap: 22px;
    align-items: start;
    margin-bottom: 26px;
  }

  .page-faq .qa-block__index {
    grid-area: index;
    padding-top: 8px;
  }

  .page-faq .qa-block__title {
    grid-area: title;
    margin-top: 0;
  }

  .page-faq .qa-block__note {
    grid-area: note;
    max-width: 52ch;
  }

  .page-faq .qa-item__q {
    padding: 20px 8px 20px 16px;
    font-size: 16.5px;
  }

  .page-faq .qa-item__a {
    padding: 4px 8px 26px 52px;
    font-size: 15.5px;
  }
}
<<<END>>>