.page-faq {
  --faq-q-gap: 12px;
  --faq-q-num-w: 36px;
  --faq-pad-x: 18px;
  display: block;
  color: var(--text);
  background: var(--ink);
  overflow-x: hidden;
}

.page-faq .faq-body {
  padding-bottom: clamp(40px, 7vw, 80px);
}

/* ---------- 首屏 ---------- */

.page-faq .faq-hero {
  position: relative;
  padding: clamp(30px, 6vw, 68px) 0 clamp(22px, 4vw, 44px);
  border-bottom: 1px solid var(--line);
  overflow: hidden;
}

.page-faq .faq-hero::after {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(to right, rgba(42, 50, 58, 0.6) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(42, 50, 58, 0.6) 1px, transparent 1px);
  background-size: 58px 58px;
  -webkit-mask-image: radial-gradient(130% 95% at 88% 0%, #000 0%, transparent 66%);
  mask-image: radial-gradient(130% 95% at 88% 0%, #000 0%, transparent 66%);
  pointer-events: none;
}

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

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

.page-faq .faq-title {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(34px, 8.5vw, 64px);
  line-height: 1.08;
  letter-spacing: -0.01em;
  color: var(--paper);
  margin: 0 0 18px;
  max-width: 18ch;
}

.page-faq .faq-lede {
  font-size: 16px;
  line-height: 1.8;
  color: var(--text);
  margin: 0 0 24px;
  max-width: 42ch;
}

.page-faq .faq-hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  align-items: center;
}

/* ---------- 图形 ---------- */

.page-faq .faq-figure {
  margin: clamp(22px, 4vw, 38px) 0 0;
  border: 1px solid var(--line);
  border-radius: var(--radius-card);
  background: var(--ink-2);
  overflow: hidden;
}

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

.page-faq .faq-figure--wide img {
  aspect-ratio: 2 / 1;
}

.page-faq .faq-figure--device {
  margin: 20px 0 0;
}

.page-faq .faq-figure--device img {
  aspect-ratio: 4 / 3;
}

.page-faq .faq-figure .figure-caption {
  padding: 12px 16px 14px;
  font-size: 13px;
  line-height: 1.6;
  color: var(--mist);
  border-top: 1px solid var(--line);
}

/* ---------- 索引条 ---------- */

.page-faq .faq-index {
  display: flex;
  gap: 8px;
  overflow-x: auto;
  scroll-snap-type: x mandatory;
  -webkit-overflow-scrolling: touch;
  padding: 18px 0 6px;
  margin-bottom: clamp(10px, 2vw, 20px);
  scrollbar-width: thin;
}

.page-faq .faq-index .index-link {
  flex: 0 0 auto;
  scroll-snap-align: start;
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  padding: 10px 18px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: var(--ink-2);
  color: var(--mist);
  font-size: 14px;
  font-weight: 600;
  text-decoration: none;
  white-space: nowrap;
  transition: color 0.18s var(--ease), border-color 0.18s var(--ease), background-color 0.18s var(--ease);
}

.page-faq .faq-index .index-link:hover,
.page-faq .faq-index .index-link:focus-visible {
  color: var(--paper);
  border-color: var(--lake);
  background: var(--ink-3);
}

.page-faq .faq-index .index-link[data-active] {
  background: var(--lake);
  border-color: var(--lake);
  color: var(--paper);
}

/* ---------- 分组 ---------- */

.page-faq .faq-group {
  padding-top: clamp(34px, 6vw, 62px);
  scroll-margin-top: 96px;
}

.page-faq .faq-group-head {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 12px;
  align-items: baseline;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--line);
}

.page-faq .faq-group-num {
  font-size: 13px;
  letter-spacing: 0.08em;
  color: var(--lake);
  padding-top: 6px;
}

.page-faq .faq-group-title {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(21px, 5.2vw, 30px);
  line-height: 1.25;
  color: var(--paper);
  margin: 0;
}

.page-faq .faq-group-note {
  margin: 14px 0 0;
  max-width: 58ch;
  font-size: 15px;
  line-height: 1.8;
  color: var(--mist);
}

/* ---------- 折叠问答 ---------- */

.page-faq .faq-list {
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin-top: 18px;
}

.page-faq .faq-item {
  border: 1px solid var(--line);
  border-radius: 18px 18px 18px 6px;
  background: var(--ink-2);
  overflow: hidden;
  transition: border-color 0.18s var(--ease), background-color 0.18s var(--ease), transform 0.18s var(--ease);
}

.page-faq .faq-item:hover {
  transform: translateY(-2px);
}

.page-faq .faq-item[open] {
  border-color: var(--lake);
  background: var(--ink-3);
}

.page-faq .faq-q {
  position: relative;
  display: flex;
  gap: var(--faq-q-gap);
  align-items: flex-start;
  min-height: 56px;
  padding: 16px var(--faq-pad-x);
  cursor: pointer;
  list-style: none;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 16px;
  line-height: 1.5;
  color: var(--paper);
}

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

.page-faq .faq-q::before {
  content: "";
  position: absolute;
  left: 0;
  top: 10px;
  bottom: 10px;
  width: 3px;
  border-radius: 0 3px 3px 0;
  background: var(--lake);
  opacity: 0;
  transform: scaleY(0.35);
  transition: opacity 0.18s var(--ease), transform 0.18s var(--ease);
}

.page-faq .faq-item:hover .faq-q::before,
.page-faq .faq-item[open] .faq-q::before,
.page-faq .faq-q:focus-visible::before {
  opacity: 1;
  transform: scaleY(1);
}

.page-faq .faq-q::after {
  content: "";
  flex: 0 0 auto;
  margin-left: auto;
  margin-top: 6px;
  width: 9px;
  height: 9px;
  border-right: 2px solid var(--mist);
  border-bottom: 2px solid var(--mist);
  transform: rotate(45deg);
  transition: transform 0.2s var(--ease), border-color 0.18s var(--ease);
}

.page-faq .faq-item[open] .faq-q::after {
  transform: rotate(-135deg);
  border-color: var(--sunset);
}

.page-faq .faq-q:focus-visible {
  outline: 2px solid var(--sunset);
  outline-offset: -3px;
}

.page-faq .faq-q-num {
  flex: 0 0 var(--faq-q-num-w);
  width: var(--faq-q-num-w);
  padding-top: 4px;
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0.06em;
  color: var(--sunset);
}

.page-faq .faq-q-text {
  flex: 1 1 auto;
}

.page-faq .faq-a {
  padding: 2px var(--faq-pad-x) 18px;
  font-size: 16px;
  line-height: 1.85;
  color: var(--text);
  max-width: 62ch;
}

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

.page-faq .faq-mark {
  color: var(--paper);
  font-weight: 600;
  border-bottom: 3px solid rgba(242, 194, 48, 0.6);
}

/* ---------- 提示条 ---------- */

.page-faq .faq-hint {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px 22px;
  margin-top: clamp(28px, 5vw, 46px);
  padding: 18px 20px;
  border-left: 4px solid var(--sunset);
  border-radius: 6px 22px 22px 6px;
  background: linear-gradient(96deg, rgba(255, 122, 47, 0.12), rgba(30, 127, 194, 0.08) 58%, rgba(20, 27, 33, 0) 100%);
}

.page-faq .faq-hint-text {
  flex: 1 1 300px;
  margin: 0;
  font-size: 15px;
  line-height: 1.75;
  color: var(--text);
}

.page-faq .faq-hint-link {
  flex: 0 0 auto;
  font-size: 14px;
  font-weight: 700;
  color: var(--lake-soft);
  text-decoration: none;
  white-space: nowrap;
  transition: color 0.18s var(--ease);
}

.page-faq .faq-hint-link:hover,
.page-faq .faq-hint-link:focus-visible {
  color: var(--sunset);
  text-decoration: underline;
}

/* ---------- 收尾 ---------- */

.page-faq .faq-cta {
  border-top: 1px solid var(--line);
  background: linear-gradient(180deg, var(--ink-3), var(--ink));
  padding: clamp(36px, 6vw, 68px) 0;
}

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

.page-faq .faq-cta-title {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(24px, 5.4vw, 38px);
  line-height: 1.2;
  color: var(--paper);
  margin: 0;
}

.page-faq .faq-cta-text {
  margin: 0;
  max-width: 52ch;
  font-size: 16px;
  line-height: 1.8;
  color: var(--mist);
}

.page-faq .faq-cta-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 6px;
}

/* ---------- 平板 ---------- */

@media (min-width: 720px) {
  .page-faq {
    --faq-pad-x: 22px;
  }

  .page-faq .faq-a {
    padding-left: calc(var(--faq-pad-x) + var(--faq-q-num-w) + var(--faq-q-gap));
    padding-right: 24px;
    padding-bottom: 22px;
  }

  .page-faq .faq-hint {
    padding: 20px 26px;
  }

  .page-faq .faq-hint-text {
    font-size: 16px;
  }

  .page-faq .faq-hero-actions {
    gap: 14px;
  }
}

/* ---------- 桌面 ---------- */

@media (min-width: 980px) {
  .page-faq .faq-lede {
    font-size: 17px;
  }

  .page-faq .faq-device-layout {
    display: grid;
    grid-template-columns: 7fr 5fr;
    gap: var(--gap);
    align-items: start;
    margin-top: 18px;
  }

  .page-faq .faq-device-layout .faq-list {
    margin-top: 0;
  }

  .page-faq .faq-figure--device {
    margin-top: 0;
    position: sticky;
    top: 104px;
  }

  .page-faq .faq-group-note {
    max-width: 62ch;
  }

  .page-faq .faq-hint {
    margin-left: 6%;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-item,
  .page-faq .faq-q::before,
  .page-faq .faq-q::after,
  .page-faq .faq-index .index-link,
  .page-faq .faq-hint-link {
    transition: color 0.15s linear, background-color 0.15s linear, border-color 0.15s linear;
  }

  .page-faq .faq-item:hover {
    transform: none;
  }
}
<<<END>>>