.page-faq {
  --faq-line: 2px;
  display: block;
  background: var(--white);
  color: var(--ink);
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  overflow: hidden;
  color: var(--white);
  border-bottom: 6px solid var(--flame);
  background:
    radial-gradient(circle at 84% 14%, rgba(33, 240, 214, .18), transparent 48%),
    linear-gradient(132deg, var(--deep) 0%, var(--deep) 56%, var(--indigo) 100%);
}

.page-faq .faq-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background-image: repeating-linear-gradient(115deg, rgba(255, 77, 28, .09) 0 2px, transparent 2px 24px);
}

.page-faq .faq-hero__inner {
  position: relative;
  display: grid;
  gap: 30px;
  padding-top: 26px;
  padding-bottom: 40px;
}

.page-faq .faq-crumbs {
  margin-bottom: 18px;
}

.page-faq .faq-crumbs ol {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 0;
  padding: 0;
  list-style: none;
  font-size: 13px;
  color: var(--ice);
}

.page-faq .faq-crumbs li + li::before {
  content: "/";
  margin-right: 8px;
  color: var(--steel);
}

.page-faq .faq-crumbs a {
  color: var(--ice);
  text-decoration: none;
}

.page-faq .faq-crumbs a:hover,
.page-faq .faq-crumbs a:focus-visible {
  color: var(--cyan);
  text-decoration: underline;
}

.page-faq .faq-hero__eyebrow {
  margin: 0 0 12px;
  color: var(--cyan);
  letter-spacing: .18em;
}

.page-faq .faq-hero__title {
  margin: 0 0 16px;
  font-family: var(--font-sans);
  font-weight: 900;
  font-size: clamp(32px, 7.4vw, 68px);
  line-height: 1.04;
  letter-spacing: -0.02em;
  text-wrap: balance;
}

.page-faq .faq-hero__lead {
  margin: 0 0 24px;
  max-width: 46ch;
  font-size: 16px;
  line-height: 1.75;
  color: var(--ice);
}

.page-faq .faq-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.page-faq .faq-hero__media {
  margin: 0;
  border: var(--faq-line) solid rgba(245, 247, 250, .22);
  background: var(--indigo);
  box-shadow: var(--shadow-hard);
}

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

/* ---------- 主题导航条 ---------- */
.page-faq .faq-topics {
  position: sticky;
  top: 0;
  z-index: 20;
  background: var(--ink);
  border-bottom: var(--faq-line) solid var(--flame);
}

.page-faq .faq-topics__list {
  display: flex;
  gap: 8px;
  margin: 0;
  padding-top: 10px;
  padding-bottom: 10px;
  list-style: none;
  overflow-x: auto;
  scrollbar-width: none;
  -webkit-overflow-scrolling: touch;
}

.page-faq .faq-topics__list::-webkit-scrollbar {
  display: none;
}

.page-faq .faq-topics__list li {
  flex: none;
}

.page-faq .faq-topics__list a {
  display: inline-block;
  padding: 7px 14px;
  border: var(--faq-line) solid rgba(245, 247, 250, .26);
  border-radius: var(--r-pill);
  color: var(--white);
  font-size: 14px;
  font-weight: 600;
  line-height: 1.2;
  text-decoration: none;
  white-space: nowrap;
  transition: background var(--dur) ease, border-color var(--dur) ease, color var(--dur) ease;
}

.page-faq .faq-topics__list a:hover,
.page-faq .faq-topics__list a:focus-visible {
  background: var(--flame);
  border-color: var(--flame);
  color: var(--white);
}

.page-faq .faq-topics__list a[aria-current="true"] {
  background: var(--cyan);
  border-color: var(--cyan);
  color: var(--ink);
}

/* ---------- 章节骨架 ---------- */
.page-faq .faq-sec {
  padding: 46px 0 50px;
  scroll-margin-top: 90px;
}

.page-faq .faq-sec--light {
  background: var(--white);
  color: var(--ink);
}

.page-faq .faq-sec--dark {
  background-color: var(--deep);
  background-image: repeating-linear-gradient(90deg, rgba(33, 240, 214, .06) 0 1px, transparent 1px 104px);
  color: var(--white);
}

.page-faq .faq-sec__head {
  position: relative;
  padding-left: 16px;
  margin-bottom: 26px;
}

.page-faq .faq-sec__head::before {
  content: "";
  position: absolute;
  left: 0;
  top: 4px;
  bottom: 4px;
  width: 6px;
  background: var(--flame);
}

.page-faq .faq-sec__idx {
  margin: 0 0 8px;
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: .16em;
  color: var(--flame);
}

.page-faq .faq-sec__head h2 {
  margin: 0;
  font-family: var(--font-sans);
  font-weight: 900;
  font-size: clamp(24px, 5vw, 38px);
  line-height: 1.12;
  letter-spacing: -0.02em;
}

.page-faq .faq-sec__lead {
  margin: 10px 0 0;
  max-width: 56ch;
  font-size: 15.5px;
  line-height: 1.75;
  color: var(--steel);
}

.page-faq .faq-sec--dark .faq-sec__lead {
  color: var(--ice);
}

/* ---------- 折叠问答 ---------- */
.page-faq .faq-list {
  display: grid;
  gap: 12px;
  max-width: 880px;
}

.page-faq .faq-item {
  border: var(--faq-line) solid var(--ink);
  background: #fff;
}

.page-faq .faq-sec--dark .faq-item {
  background: var(--indigo);
  border-color: rgba(245, 247, 250, .24);
}

.page-faq .faq-item__head {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 15px 16px;
  cursor: pointer;
  list-style: none;
  font-size: 16.5px;
  font-weight: 700;
  line-height: 1.5;
  transition: background var(--dur) ease;
}

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

.page-faq .faq-item__head:hover {
  background: rgba(255, 77, 28, .07);
}

.page-faq .faq-sec--dark .faq-item__head:hover {
  background: rgba(33, 240, 214, .08);
}

.page-faq .faq-item__head:focus-visible {
  outline: var(--faq-line) dashed var(--flame);
  outline-offset: -4px;
}

.page-faq .faq-item__num {
  flex: none;
  padding-top: 4px;
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: 12.5px;
  font-weight: 700;
  letter-spacing: .04em;
  color: var(--flame);
}

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

.page-faq .faq-item__icon {
  position: relative;
  flex: none;
  width: 20px;
  height: 20px;
  margin-top: 3px;
}

.page-faq .faq-item__icon::before,
.page-faq .faq-item__icon::after {
  content: "";
  position: absolute;
  background: var(--flame);
  transition: transform var(--dur) ease;
}

.page-faq .faq-item__icon::before {
  left: 1px;
  right: 1px;
  top: 9px;
  height: var(--faq-line);
}

.page-faq .faq-item__icon::after {
  top: 1px;
  bottom: 1px;
  left: 9px;
  width: var(--faq-line);
}

.page-faq .faq-item[open] .faq-item__icon::after {
  transform: scaleY(0);
}

.page-faq .faq-item__body {
  padding: 0 16px 16px 16px;
}

.page-faq .faq-item[open] .faq-item__body {
  animation: faq-answer-in var(--dur) ease-out both;
}

.page-faq .faq-item__body p {
  margin: 0;
  font-size: 15.5px;
  line-height: 1.78;
  color: var(--steel);
}

.page-faq .faq-sec--dark .faq-item__body p {
  color: var(--ice);
}

.page-faq .faq-item__body a {
  color: var(--lava);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.page-faq .faq-sec--dark .faq-item__body a {
  color: var(--cyan);
}

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

/* ---------- 客户端图文分行 ---------- */
.page-faq .faq-split {
  display: grid;
  gap: 22px;
}

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

.page-faq .faq-split__media img {
  display: block;
  width: 100%;
  height: auto;
  border: var(--faq-line) solid var(--flame);
  background: var(--indigo);
  object-fit: cover;
}

.page-faq .faq-split__media figcaption {
  margin-top: 10px;
  font-size: 13.5px;
  line-height: 1.7;
  color: var(--ice);
  border-left: 4px solid var(--cyan);
  padding-left: 10px;
}

/* ---------- 指标卡 ---------- */
.page-faq .faq-metrics {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
  margin: 0 0 24px;
  padding: 0;
  list-style: none;
  max-width: 880px;
}

.page-faq .faq-metrics li {
  display: grid;
  gap: 3px;
  padding: 12px 13px;
  border: var(--faq-line) solid var(--ink);
  background: #fff;
}

.page-faq .faq-metric__num {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: 11.5px;
  font-weight: 700;
  letter-spacing: .12em;
  color: var(--flame);
}

.page-faq .faq-metric__name {
  font-size: 16.5px;
  font-weight: 800;
  letter-spacing: -0.01em;
}

.page-faq .faq-metric__desc {
  font-size: 13px;
  line-height: 1.55;
  color: var(--steel);
}

/* ---------- 收尾 ---------- */
.page-faq .faq-cta {
  background: var(--flame);
  color: var(--ink);
  border-top: var(--faq-line) solid var(--ink);
}

.page-faq .faq-cta__inner {
  display: grid;
  gap: 20px;
  padding-top: 34px;
  padding-bottom: 36px;
}

.page-faq .faq-cta__copy h2 {
  margin: 0 0 8px;
  font-family: var(--font-sans);
  font-weight: 900;
  font-size: clamp(22px, 4.4vw, 32px);
  line-height: 1.15;
  letter-spacing: -0.02em;
}

.page-faq .faq-cta__copy p {
  margin: 0;
  max-width: 48ch;
  font-size: 15.5px;
  line-height: 1.7;
}

.page-faq .faq-cta__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.page-faq .faq-cta .btn--primary {
  background: var(--ink);
  border-color: var(--ink);
  color: var(--white);
}

.page-faq .faq-cta .btn--ghost {
  border-color: var(--ink);
  color: var(--ink);
}

/* ---------- 断点 ---------- */
@media (min-width: 600px) {
  .page-faq .faq-item__body {
    padding: 0 18px 18px 56px;
  }

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

@media (min-width: 900px) {
  .page-faq .faq-hero__inner {
    grid-template-columns: minmax(0, 1.04fr) minmax(0, 0.96fr);
    align-items: center;
    gap: 48px;
    padding-top: 52px;
    padding-bottom: 64px;
  }

  .page-faq .faq-sec {
    padding: 68px 0 76px;
  }

  .page-faq .faq-sec__head {
    padding-left: 20px;
    margin-bottom: 34px;
  }

  .page-faq .faq-split {
    grid-template-columns: minmax(0, 0.86fr) minmax(0, 1.14fr);
    align-items: start;
    gap: 32px;
  }

  .page-faq .faq-split__media {
    position: sticky;
    top: 84px;
  }

  .page-faq .faq-metrics {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .page-faq .faq-cta__inner {
    grid-template-columns: minmax(0, 1fr) auto;
    align-items: center;
    gap: 32px;
    padding-top: 44px;
    padding-bottom: 46px;
  }
}

@media (min-width: 1200px) {
  .page-faq .faq-list {
    max-width: 920px;
  }

  .page-faq .faq-item__head {
    padding: 18px 22px;
    font-size: 17.5px;
  }

  .page-faq .faq-item__num {
    padding-top: 5px;
    font-size: 13px;
  }

  .page-faq .faq-item__body {
    padding: 0 22px 20px 60px;
  }
}
<<<END>>>