.page-faq {
  --faq-hair: rgba(11, 31, 51, 0.14);
  --faq-hair-strong: rgba(11, 31, 51, 0.3);
  --faq-hair-light: rgba(247, 243, 232, 0.2);
  --faq-muted: #47505c;
  background: var(--moon);
  color: var(--ink);
  font-family: var(--font-sans);
}

.page-faq .faq-crumb {
  padding: 18px 0 0;
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  background: var(--navy);
  color: var(--moon);
  margin-top: 16px;
  overflow: hidden;
}

.page-faq .faq-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(to right, rgba(247, 243, 232, 0.055) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(247, 243, 232, 0.055) 1px, transparent 1px);
  background-size: 72px 72px;
  pointer-events: none;
}

.page-faq .faq-hero::after {
  content: "";
  position: absolute;
  right: -60px;
  top: -40px;
  width: 220px;
  height: 220px;
  background: var(--copper);
  opacity: 0.16;
  transform: rotate(18deg);
  pointer-events: none;
}

.page-faq .faq-hero__inner {
  position: relative;
  z-index: 1;
  display: grid;
  gap: 30px;
  padding: clamp(30px, 5vw, 68px) 0 clamp(34px, 5vw, 64px);
}

.page-faq .faq-hero__tag {
  margin: 0 0 18px;
  font-size: 11px;
  letter-spacing: 0.22em;
  color: var(--cyan);
}

.page-faq .faq-hero__title {
  margin: 0 0 20px;
  font-size: clamp(34px, 7.2vw, 76px);
  line-height: 1.06;
  font-weight: 900;
  letter-spacing: -0.04em;
}

.page-faq .faq-hero__title span {
  color: var(--copper);
}

.page-faq .faq-hero__lede {
  margin: 0 0 26px;
  max-width: 34em;
  font-size: 16px;
  line-height: 1.85;
  color: rgba(247, 243, 232, 0.82);
}

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

.page-faq .faq-hero__aside {
  display: flex;
  gap: 16px;
  border-top: 1px solid var(--faq-hair-light);
  padding-top: 20px;
}

.page-faq .faq-hero__vertical {
  writing-mode: vertical-rl;
  margin: 0;
  font-size: 10px;
  letter-spacing: 0.28em;
  color: rgba(247, 243, 232, 0.5);
  border-left: 1px solid var(--faq-hair-light);
  padding-left: 10px;
}

.page-faq .faq-hero__facts {
  margin: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 18px 28px;
}

.page-faq .faq-hero__fact dt {
  margin: 0 0 4px;
  font-size: 10px;
  letter-spacing: 0.14em;
  color: var(--teal);
}

.page-faq .faq-hero__fact dd {
  margin: 0;
  font-size: 17px;
  font-weight: 700;
  letter-spacing: -0.01em;
}

@media (min-width: 900px) {
  .page-faq .faq-hero__inner {
    grid-template-columns: minmax(0, 1fr) 236px;
    gap: 56px;
    align-items: stretch;
  }

  .page-faq .faq-hero__aside {
    flex-direction: column;
    justify-content: flex-start;
    gap: 22px;
    border-top: 0;
    border-left: 1px solid var(--faq-hair-light);
    padding: 4px 0 4px 22px;
  }

  .page-faq .faq-hero__vertical {
    writing-mode: horizontal-tb;
    border-left: 0;
    padding-left: 0;
    border-bottom: 1px solid var(--faq-hair-light);
    padding-bottom: 10px;
    letter-spacing: 0.2em;
  }

  .page-faq .faq-hero__facts {
    flex-direction: column;
    gap: 22px;
  }
}

/* ---------- 快速查答 ---------- */
.page-faq .faq-quick {
  padding: clamp(40px, 6vw, 78px) 0 0;
}

.page-faq .section-num {
  margin: 0 0 10px;
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--copper-deep);
}

.page-faq .section-title {
  margin: 0;
  font-size: clamp(24px, 3.6vw, 38px);
  font-weight: 900;
  letter-spacing: -0.03em;
  line-height: 1.2;
}

.page-faq .faq-quick__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 14px;
  margin-top: 26px;
}

.page-faq .quick-card {
  --card-accent: var(--copper);
  display: flex;
  flex-direction: column;
  gap: 10px;
  background: var(--warm);
  border: 1px solid var(--faq-hair);
  border-top: 3px solid var(--card-accent);
  padding: 20px 20px 22px;
}

.page-faq .quick-card--cyan { --card-accent: var(--cyan); }
.page-faq .quick-card--copper { --card-accent: var(--copper); }
.page-faq .quick-card--violet { --card-accent: var(--violet); }
.page-faq .quick-card--teal { --card-accent: var(--teal); }

.page-faq .quick-card__num {
  margin: 0;
  font-size: 10px;
  letter-spacing: 0.16em;
  color: var(--card-accent);
}

.page-faq .quick-card__title {
  margin: 0;
  font-size: 19px;
  font-weight: 900;
  letter-spacing: -0.02em;
  line-height: 1.35;
}

.page-faq .quick-card__desc {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.75;
  color: var(--faq-muted);
}

.page-faq .quick-card__link {
  margin-top: auto;
  align-self: flex-start;
  font-size: 13.5px;
  font-weight: 700;
  color: var(--ink);
  text-decoration: none;
  border-bottom: 2px solid var(--card-accent);
  padding-bottom: 2px;
}

.page-faq .quick-card__link:hover,
.page-faq .quick-card__link:focus-visible {
  color: var(--copper-deep);
}

.page-faq .faq-quick__figure {
  margin: 26px 0 0;
}

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

/* ---------- 主体：索引 + 折叠答案 ---------- */
.page-faq .faq-body {
  padding: clamp(42px, 6vw, 82px) 0 0;
}

.page-faq .faq-body__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 30px;
}

.page-faq .faq-index__head {
  margin: 0 0 12px;
  font-size: 11px;
  letter-spacing: 0.18em;
  color: var(--navy-2);
  border-bottom: 2px solid var(--navy);
  padding-bottom: 10px;
}

.page-faq .faq-index__list {
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-faq .faq-index__link {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 10px;
  padding: 11px 0;
  font-size: 15px;
  font-weight: 500;
  color: var(--ink);
  text-decoration: none;
  border-bottom: 1px solid var(--faq-hair);
}

.page-faq .faq-index__link .mono {
  font-size: 11px;
  color: var(--teal);
}

.page-faq .faq-index__link:hover,
.page-faq .faq-index__link:focus-visible {
  color: var(--copper-deep);
  border-bottom-color: var(--copper);
}

.page-faq .faq-index__note {
  margin: 16px 0 0;
  font-size: 13px;
  line-height: 1.7;
  color: var(--faq-muted);
}

.page-faq .faq-index__note a {
  color: var(--copper-deep);
  font-weight: 700;
  text-decoration: none;
  border-bottom: 1px solid var(--copper);
}

.page-faq .faq-group + .faq-group {
  margin-top: clamp(34px, 5vw, 58px);
  padding-top: clamp(24px, 4vw, 40px);
  border-top: 1px solid var(--faq-hair-strong);
}

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

.page-faq .faq-item__q {
  display: grid;
  grid-template-columns: 30px minmax(0, 1fr) 16px;
  gap: 10px;
  align-items: start;
  padding: 18px 0;
  cursor: pointer;
  list-style: none;
  font-size: 16px;
  font-weight: 700;
  line-height: 1.6;
  letter-spacing: -0.01em;
}

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

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

.page-faq .faq-item__num {
  font-size: 11px;
  letter-spacing: 0.06em;
  color: var(--teal);
  padding-top: 4px;
}

.page-faq .faq-item__sign {
  position: relative;
  width: 14px;
  height: 14px;
  margin-top: 6px;
  justify-self: end;
}

.page-faq .faq-item__sign::before,
.page-faq .faq-item__sign::after {
  content: "";
  position: absolute;
  background: var(--copper);
}

.page-faq .faq-item__sign::before {
  left: 0;
  top: 6px;
  width: 14px;
  height: 2px;
}

.page-faq .faq-item__sign::after {
  left: 6px;
  top: 0;
  width: 2px;
  height: 14px;
  transition: transform 0.22s var(--ease), opacity 0.22s var(--ease);
}

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

.page-faq .faq-item__q:hover .faq-item__text {
  color: var(--copper-deep);
}

.page-faq .faq-item__a {
  padding: 0 0 20px 40px;
}

.page-faq .faq-item__a p {
  margin: 0 0 10px;
  max-width: 40em;
  font-size: 15.5px;
  line-height: 1.85;
  color: var(--faq-muted);
}

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

.page-faq .faq-legend {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px 14px;
  font-size: 13px;
  color: var(--ink);
}

.page-faq .faq-status {
  display: inline-block;
  width: 11px;
  height: 11px;
  margin-right: -6px;
}

.page-faq .faq-status--ok { background: var(--teal); }
.page-faq .faq-status--warn { background: var(--copper); }
.page-faq .faq-status--none { background: var(--sand); border: 1px solid var(--faq-hair-strong); }

.page-faq .faq-android__figure {
  margin: 26px 0 0;
}

/* ---------- 术语速查 ---------- */
.page-faq .faq-glossary__list {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0;
  margin: 24px 0 0;
  border-top: 1px solid var(--faq-hair-strong);
}

.page-faq .glossary__item {
  padding: 16px 0;
  border-bottom: 1px solid var(--faq-hair);
}

.page-faq .glossary__item dt {
  margin: 0 0 6px;
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--copper-deep);
}

.page-faq .glossary__item dd {
  margin: 0;
  font-size: 15px;
  line-height: 1.8;
  color: var(--faq-muted);
}

/* ---------- 底部转化 ---------- */
.page-faq .faq-cta {
  padding: clamp(46px, 7vw, 92px) 0 clamp(50px, 8vw, 96px);
}

.page-faq .faq-cta__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 14px;
}

.page-faq .faq-cta__main {
  background: var(--navy);
  color: var(--moon);
  padding: clamp(26px, 4vw, 46px);
  border-top: 4px solid var(--copper);
}

.page-faq .faq-cta__tag {
  margin: 0 0 12px;
  font-size: 11px;
  letter-spacing: 0.2em;
  color: var(--cyan);
}

.page-faq .faq-cta__title {
  margin: 0 0 14px;
  font-size: clamp(24px, 3.4vw, 36px);
  font-weight: 900;
  line-height: 1.2;
  letter-spacing: -0.03em;
}

.page-faq .faq-cta__desc {
  margin: 0 0 22px;
  max-width: 32em;
  font-size: 15px;
  line-height: 1.8;
  color: rgba(247, 243, 232, 0.8);
}

.page-faq .faq-cta__contacts {
  margin: 0 0 26px;
  padding: 0;
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 10px;
  font-size: 15px;
}

.page-faq .faq-cta__contacts .mono {
  display: inline-block;
  min-width: 82px;
  font-size: 11px;
  letter-spacing: 0.1em;
  color: var(--teal);
}

.page-faq .faq-cta__side {
  background: var(--sand);
  padding: clamp(24px, 4vw, 40px);
}

.page-faq .faq-cta__side-title {
  margin: 0 0 16px;
  font-size: 17px;
  font-weight: 900;
  letter-spacing: -0.01em;
}

.page-faq .faq-cta__links {
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-faq .faq-cta__links li {
  border-top: 1px solid var(--faq-hair-strong);
}

.page-faq .faq-cta__links li:last-child {
  border-bottom: 1px solid var(--faq-hair-strong);
}

.page-faq .faq-cta__links a {
  display: block;
  padding: 13px 0;
  font-size: 15px;
  color: var(--ink);
  text-decoration: none;
}

.page-faq .faq-cta__links a:hover,
.page-faq .faq-cta__links a:focus-visible {
  color: var(--copper-deep);
}

/* ---------- 响应式 ---------- */
@media (min-width: 620px) {
  .page-faq .faq-quick__grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-faq .faq-hero__facts {
    gap: 20px 40px;
  }
}

@media (min-width: 760px) {
  .page-faq .faq-glossary__list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    column-gap: 44px;
  }

  .page-faq .glossary__item {
    padding-right: 8px;
  }
}

@media (min-width: 980px) {
  .page-faq .faq-quick__grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .page-faq .faq-body__grid {
    grid-template-columns: 216px minmax(0, 1fr);
    gap: 58px;
    align-items: start;
  }

  .page-faq .faq-index {
    position: sticky;
    top: calc(var(--header-h) + 24px);
  }

  .page-faq .faq-item__q {
    grid-template-columns: 38px minmax(0, 1fr) 18px;
    gap: 14px;
    font-size: 17px;
  }

  .page-faq .faq-item__a {
    padding-left: 52px;
  }

  .page-faq .faq-cta__grid {
    grid-template-columns: minmax(0, 1.5fr) minmax(0, 1fr);
  }
}

@media (min-width: 1200px) {
  .page-faq .faq-item__a p {
    font-size: 16px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-item__sign::after {
    transition: none;
  }
}
<<<END>>>