.page-faq {
  background: var(--ink);
  color: var(--porcelain);
}

.page-faq .faq-top {
  padding-top: calc(var(--header-h) + clamp(20px, 4vw, 36px));
}

/* ---------- 首屏 ---------- */

.page-faq .faq-hero {
  position: relative;
  margin-top: clamp(18px, 3vw, 28px);
  padding: clamp(34px, 6vw, 76px) 0 clamp(40px, 6vw, 80px);
  background:
    radial-gradient(1000px 460px at 10% -14%, rgba(198, 255, 79, .12), transparent 62%),
    radial-gradient(860px 420px at 94% 6%, rgba(255, 155, 49, .09), transparent 64%),
    linear-gradient(180deg, var(--ink) 0%, var(--deep) 100%);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  overflow: hidden;
}

.page-faq .faq-hero::after {
  content: "";
  position: absolute;
  inset: auto -10% -60% 40%;
  height: 220px;
  background: linear-gradient(90deg, transparent, rgba(63, 224, 192, .10), transparent);
  transform: rotate(-8deg);
  pointer-events: none;
}

.page-faq .faq-hero__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(28px, 4vw, 52px);
}

.page-faq .faq-hero__lead h1 {
  margin: 16px 0 20px;
  max-width: 17ch;
  letter-spacing: -.03em;
  color: var(--porcelain);
}

.page-faq .faq-hero__lead .lede {
  max-width: 46ch;
  margin: 0;
  color: var(--mist);
}

.page-faq .faq-hero__stats {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  margin: 0;
  background: var(--line);
  border: 1px solid var(--line);
  border-radius: var(--r-md);
  overflow: hidden;
}

.page-faq .faq-stat {
  margin: 0;
  padding: 16px 18px 18px;
  background: var(--deep);
}

.page-faq .faq-stat__k {
  font-size: 11px;
  letter-spacing: .08em;
  color: var(--mist);
  text-transform: uppercase;
}

.page-faq .faq-stat__v {
  margin: 8px 0 0;
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: clamp(18px, 2.2vw, 22px);
  font-weight: 700;
  color: var(--lime);
}

/* ---------- 布局 ---------- */

.page-faq .faq-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(26px, 4vw, 40px);
  padding-top: clamp(36px, 5vw, 62px);
  padding-bottom: clamp(56px, 8vw, 108px);
}

.page-faq .faq-index__label {
  margin: 0;
  font-size: 11px;
  letter-spacing: .1em;
  color: var(--mist);
  text-transform: uppercase;
}

.page-faq .faq-index__list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 14px 0 0;
  padding: 0;
  list-style: none;
}

.page-faq .faq-index__link {
  display: block;
  padding: 8px 14px;
  border: 1px solid var(--line);
  border-radius: var(--r-pill);
  font-size: 13px;
  color: var(--mist);
  text-decoration: none;
  white-space: nowrap;
  transition: color .25s var(--ease), border-color .25s var(--ease), background-color .25s var(--ease);
}

.page-faq .faq-index__link:hover {
  color: var(--lime);
  border-color: var(--lime);
  background: rgba(198, 255, 79, .07);
}

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

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

/* ---------- 区块 ---------- */

.page-faq .faq-block {
  scroll-margin-top: calc(var(--header-h) + 28px);
}

.page-faq .faq-block + .faq-block {
  margin-top: clamp(46px, 6vw, 86px);
  padding-top: clamp(34px, 4vw, 56px);
  border-top: 1px solid var(--line);
}

.page-faq .faq-block__head {
  max-width: 60ch;
}

.page-faq .faq-block__head h2 {
  margin: 12px 0 14px;
  color: var(--porcelain);
}

.page-faq .faq-block__intro {
  margin: 0;
  font-size: 15.5px;
  line-height: 1.8;
  color: var(--mist);
}

/* ---------- 配图 ---------- */

.page-faq .faq-figure {
  margin: clamp(24px, 3vw, 34px) 0 0;
  background: var(--deep);
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  overflow: hidden;
}

.page-faq .faq-figure img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  aspect-ratio: 3 / 2;
  object-fit: cover;
  filter: saturate(.88) contrast(1.06);
}

.page-faq .faq-figure--wide img {
  aspect-ratio: 10 / 7;
}

.page-faq .faq-figure figcaption {
  padding: 12px 18px;
  border-top: 1px solid var(--line);
  font-size: 12.5px;
  line-height: 1.6;
  color: var(--mist);
}

/* ---------- 问答 ---------- */

.page-faq .faq-list {
  margin-top: clamp(22px, 3vw, 34px);
  border-top: 1px solid var(--line);
}

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

.page-faq .faq-item__q {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  gap: 14px;
  align-items: start;
  padding: 20px 4px;
  cursor: pointer;
  list-style: none;
  transition: color .25s var(--ease);
}

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

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

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

.page-faq .faq-item__q:focus-visible {
  outline: 2px solid var(--lime);
  outline-offset: 2px;
  border-radius: 10px;
}

.page-faq .faq-item__idx {
  padding-top: 5px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .04em;
  color: var(--mist);
}

.page-faq .faq-item__text {
  font-size: clamp(16px, 1.5vw, 18px);
  font-weight: 600;
  line-height: 1.55;
  letter-spacing: -.01em;
  color: inherit;
}

.page-faq .faq-item[open] .faq-item__q {
  color: var(--porcelain);
}

.page-faq .faq-item[open] .faq-item__idx {
  color: var(--lime);
}

.page-faq .faq-item__sign {
  position: relative;
  width: 16px;
  height: 16px;
  margin-top: 8px;
  flex: none;
}

.page-faq .faq-item__sign::before,
.page-faq .faq-item__sign::after {
  content: "";
  position: absolute;
  background: var(--lime);
  transition: transform .28s var(--ease), opacity .28s var(--ease);
}

.page-faq .faq-item__sign::before {
  top: 7px;
  left: 0;
  width: 16px;
  height: 2px;
}

.page-faq .faq-item__sign::after {
  top: 0;
  left: 7px;
  width: 2px;
  height: 16px;
}

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

.page-faq .faq-item__a {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 18px;
  padding: 2px 4px 28px;
}

.page-faq .faq-item__body {
  max-width: 42em;
}

.page-faq .faq-item__body p {
  margin: 0 0 12px;
  font-size: 15.5px;
  line-height: 1.82;
  color: rgba(243, 246, 241, .87);
}

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

/* ---------- 旁注 ---------- */

.page-faq .faq-note {
  align-self: start;
  padding: 14px 16px 16px;
  background: linear-gradient(158deg, rgba(20, 49, 40, .96), rgba(13, 33, 28, .96));
  border: 1px solid var(--line);
  border-left: 2px solid var(--cyan);
  border-radius: var(--r-md);
  font-size: 13.5px;
  line-height: 1.7;
  color: var(--mist);
}

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

.page-faq .faq-note .label {
  margin-bottom: 8px;
}

.page-faq .faq-code {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 16px;
  align-items: center;
  margin: 12px 0 0;
  padding: 10px 12px;
  background: var(--ink);
  border: 1px solid var(--line);
  border-radius: 10px;
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: 12.5px;
  letter-spacing: .02em;
  color: var(--cyan);
  word-break: break-all;
}

.page-faq .faq-code span {
  display: inline-block;
}

/* ---------- 收尾 ---------- */

.page-faq .faq-block--cta {
  padding-bottom: clamp(8px, 2vw, 16px);
}

.page-faq .faq-cta {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: clamp(22px, 3vw, 30px);
}

.page-faq .faq-cta__links {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 10px;
  margin: clamp(26px, 3vw, 36px) 0 0;
  padding: clamp(18px, 2vw, 24px) clamp(18px, 2.4vw, 28px);
  list-style: none;
  background: var(--deep);
  border: 1px solid var(--line);
  border-radius: var(--r-md);
}

.page-faq .faq-cta__links li {
  position: relative;
  padding-left: 18px;
  font-size: 14.5px;
  line-height: 1.7;
}

.page-faq .faq-cta__links li::before {
  content: "";
  position: absolute;
  top: .68em;
  left: 0;
  width: 8px;
  height: 2px;
  background: var(--lime);
}

.page-faq .faq-cta__links a {
  color: var(--porcelain);
  text-decoration: none;
  border-bottom: 1px solid var(--line);
  transition: color .25s var(--ease), border-color .25s var(--ease);
}

.page-faq .faq-cta__links a:hover {
  color: var(--lime);
  border-color: var(--lime);
}

.page-faq .faq-cta__links a:focus-visible {
  outline: 2px solid var(--lime);
  outline-offset: 3px;
}

/* ---------- 中等屏幕 ---------- */

@media (min-width: 720px) {
  .page-faq .faq-cta__links {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 12px 28px;
  }

  .page-faq .faq-item__q {
    gap: 18px;
    padding: 22px 6px;
  }
}

@media (min-width: 860px) {
  .page-faq .faq-item__a {
    grid-template-columns: minmax(0, 1fr) minmax(0, 236px);
    gap: clamp(24px, 3.4vw, 44px);
    padding-bottom: 32px;
  }
}

/* ---------- 桌面栅格 ---------- */

@media (min-width: 1024px) {
  .page-faq .faq-hero__grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    gap: clamp(36px, 5vw, 72px);
    align-items: end;
  }

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

  .page-faq .faq-layout {
    grid-template-columns: minmax(0, 218px) minmax(0, 1fr);
    gap: clamp(36px, 4vw, 60px);
  }

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

  .page-faq .faq-index__list {
    display: block;
    margin-top: 16px;
  }

  .page-faq .faq-index__list li + li {
    margin-top: 2px;
  }

  .page-faq .faq-index__link {
    padding: 9px 12px 9px 16px;
    border: 0;
    border-left: 2px solid var(--line);
    border-radius: 0;
    font-size: 14px;
    white-space: normal;
  }

  .page-faq .faq-index__link:hover {
    background: rgba(198, 255, 79, .06);
    border-left-color: var(--lime);
  }

  .page-faq .faq-index__link:focus-visible {
    outline-offset: 1px;
  }
}

@media (min-width: 1280px) {
  .page-faq .faq-hero__stats {
    border-radius: var(--r-lg);
  }
}

/* ---------- 动效偏好 ---------- */

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-item__sign::before,
  .page-faq .faq-item__sign::after,
  .page-faq .faq-index__link,
  .page-faq .faq-item__q,
  .page-faq .faq-cta__links a {
    transition: none;
  }
}
<<<END>>>