.page-faq {
  --faq-rule: var(--aqua-soft);
  --faq-rule-ink: var(--grid);
  --faq-focus: var(--lime);
  display: block;
}

/* ---------- 面包屑 ---------- */
.page-faq .breadcrumb {
  padding-block: 18px 8px;
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 28px;
  padding-block: 8px 36px;
  border-bottom: 1px solid var(--aqua);
}

.page-faq .faq-hero__main h1 {
  margin: 14px 0 0;
  font-size: clamp(30px, 6.4vw, 54px);
  line-height: 1.1;
  letter-spacing: -0.015em;
  font-weight: 800;
  color: var(--text);
}

.page-faq .faq-hero__lede {
  margin: 18px 0 0;
  max-width: 34em;
  font-size: 16px;
  line-height: 1.75;
  color: var(--muted);
}

.page-faq .faq-hero__stats {
  margin: 0;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  border-top: 1px solid var(--aqua);
}

.page-faq .faq-hero__stat {
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding: 14px 0;
  border-bottom: 1px solid var(--faq-rule);
}

.page-faq .faq-hero__stat dt {
  font-size: 14px;
  line-height: 1.4;
  color: var(--muted);
  letter-spacing: 0.02em;
}

.page-faq .faq-hero__stat dd {
  margin: 0;
  font-size: 30px;
  line-height: 1;
  font-weight: 700;
  color: var(--text);
}

@media (min-width: 620px) {
  .page-faq .faq-hero__stats {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
  .page-faq .faq-hero__stat {
    padding: 16px 14px 16px 0;
  }
  .page-faq .faq-hero__stat + .faq-hero__stat {
    padding-left: 16px;
    border-left: 1px solid var(--faq-rule);
  }
}

@media (min-width: 900px) {
  .page-faq .faq-hero__grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 4fr);
    gap: 56px;
    align-items: end;
    padding-block: 24px 56px;
  }
  .page-faq .faq-hero__stats {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

/* ---------- 三步上手带 ---------- */
.page-faq .faq-steps {
  padding-block: 44px 52px;
  color: var(--paper);
}

.page-faq .faq-steps .eyebrow {
  color: var(--aqua-mid);
}

.page-faq .faq-steps__title {
  margin: 12px 0 0;
  max-width: 22em;
  font-size: clamp(24px, 4vw, 36px);
  line-height: 1.25;
  font-weight: 700;
  color: var(--paper);
}

.page-faq .step-rail {
  list-style: none;
  margin: 34px 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
}

.page-faq .step-rail__item {
  position: relative;
  padding: 22px 0 24px;
  border-top: 1px solid var(--faq-rule-ink);
}

.page-faq .step-rail__item::before {
  content: "";
  position: absolute;
  top: -1px;
  left: 0;
  width: 34px;
  height: 2px;
  background: var(--lime);
}

.page-faq .step-rail__no {
  display: block;
  font-size: 13px;
  letter-spacing: 0.12em;
  color: var(--aqua-mid);
}

.page-faq .step-rail__title {
  margin: 10px 0 0;
  font-size: 20px;
  line-height: 1.35;
  font-weight: 700;
  color: var(--paper);
}

.page-faq .step-rail__time {
  margin: 8px 0 0;
  font-size: 13px;
  letter-spacing: 0.06em;
  color: var(--lime);
}

.page-faq .step-rail__desc {
  margin: 12px 0 0;
  max-width: 30em;
  font-size: 15px;
  line-height: 1.72;
  color: var(--muted-dark);
}

@media (min-width: 760px) {
  .page-faq .step-rail {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
  .page-faq .step-rail__item {
    padding: 24px 32px 10px 0;
  }
}

/* ---------- 图片组 ---------- */
.page-faq .faq-figure {
  margin: 38px 0 0;
}

.page-faq .faq-figure .media-frame {
  width: 100%;
}

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

.page-faq .faq-figure__cap {
  margin: 12px 0 0;
  font-size: 13px;
  line-height: 1.65;
  color: var(--muted-dark);
}

/* ---------- 主体网格 ---------- */
.page-faq .faq-body__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 32px;
  padding-block: 40px 56px;
}

@media (min-width: 1024px) {
  .page-faq .faq-body__grid {
    grid-template-columns: minmax(0, 3fr) minmax(0, 8fr);
    gap: 0 64px;
    align-items: start;
    padding-block: 56px 80px;
  }
}

/* ---------- 左侧索引 ---------- */
.page-faq .faq-index__head {
  margin: 0 0 14px;
}

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

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

.page-faq .faq-index__link {
  display: flex;
  align-items: baseline;
  gap: 12px;
  padding: 11px 6px 11px 14px;
  margin-left: -2px;
  border-left: 2px solid var(--faq-rule);
  color: var(--muted);
  text-decoration: none;
  font-size: 15px;
  line-height: 1.5;
  transition: color 160ms var(--ease), border-color 160ms var(--ease), background-color 160ms var(--ease);
}

.page-faq .faq-index__link:hover {
  color: var(--text);
  border-left-color: var(--lime-deep);
  background: var(--aqua-soft);
}

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

.page-faq .faq-index__no {
  flex: 0 0 auto;
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--aqua);
}

@media (min-width: 1024px) {
  .page-faq .faq-index {
    position: sticky;
    top: 96px;
  }
}

/* ---------- 分组 ---------- */
.page-faq .faq-group {
  scroll-margin-top: 96px;
}

.page-faq .faq-group + .faq-group {
  margin-top: 40px;
  padding-top: 36px;
  border-top: 1px solid var(--aqua);
}

.page-faq .faq-group__head {
  display: flex;
  align-items: baseline;
  gap: 14px;
  margin: 0 0 10px;
}

.page-faq .faq-group__no {
  margin: 0;
  font-size: 13px;
  letter-spacing: 0.1em;
  color: var(--lime-ink);
}

.page-faq .faq-group__title {
  margin: 0;
  font-size: clamp(20px, 2.6vw, 28px);
  line-height: 1.3;
  font-weight: 700;
  color: var(--text);
}

/* ---------- 折叠问答 ---------- */
.page-faq .qa {
  border-bottom: 1px solid var(--faq-rule);
}

.page-faq .qa__q {
  display: flex;
  align-items: baseline;
  gap: 12px;
  padding: 17px 0;
  cursor: pointer;
  list-style: none;
  font-size: 16px;
  font-weight: 600;
  line-height: 1.6;
  color: var(--text);
  transition: color 160ms var(--ease);
}

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

.page-faq .qa__q::after {
  content: "+";
  margin-left: auto;
  flex: 0 0 auto;
  font-family: var(--font-mono);
  font-size: 18px;
  line-height: 1;
  color: var(--aqua);
  transition: color 160ms var(--ease);
}

.page-faq .qa[open] .qa__q::after {
  content: "−";
  color: var(--lime-deep);
}

.page-faq .qa__q:hover {
  color: var(--aqua);
}

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

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

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

.page-faq .qa__a {
  padding: 0 0 18px;
  border-top: 1px solid var(--aqua-soft);
  margin-top: -1px;
  padding-top: 14px;
}

.page-faq .qa__a p {
  margin: 0;
  max-width: 36em;
  font-size: 15px;
  line-height: 1.78;
  color: var(--muted);
}

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

.page-faq .qa__a a:hover {
  color: var(--lime-ink);
}

/* ---------- 求助分组 ---------- */
.page-faq .faq-group.faq-group--help {
  margin-top: 44px;
  padding: 30px 22px 34px;
  border-top: 3px solid var(--lime);
  background: var(--ink);
}

.page-faq .faq-group--help .faq-group__no {
  color: var(--lime);
}

.page-faq .faq-group--help .faq-group__title {
  color: var(--paper);
}

.page-faq .faq-help__lede {
  margin: 14px 0 0;
  max-width: 38em;
  font-size: 15px;
  line-height: 1.75;
  color: var(--muted-dark);
}

.page-faq .faq-contact-list {
  margin: 22px 0 0;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  border-top: 1px solid var(--faq-rule-ink);
}

.page-faq .faq-contact-list > div {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 4px;
  padding: 12px 0;
  border-bottom: 1px solid var(--faq-rule-ink);
}

.page-faq .faq-contact-list dt {
  font-size: 13px;
  letter-spacing: 0.04em;
  color: var(--aqua-mid);
}

.page-faq .faq-contact-list dd {
  margin: 0;
  font-size: 15px;
  line-height: 1.7;
  color: var(--paper);
  word-break: break-word;
}

@media (min-width: 560px) {
  .page-faq .faq-contact-list > div {
    grid-template-columns: 108px minmax(0, 1fr);
    align-items: baseline;
    gap: 18px;
  }
}

.page-faq .faq-help__actions {
  margin-top: 26px;
}

/* ---------- 桌面端微调 ---------- */
@media (min-width: 1024px) {
  .page-faq .faq-group + .faq-group {
    margin-top: 52px;
    padding-top: 44px;
  }
  .page-faq .faq-figure {
    margin-top: 30px;
  }
  .page-faq .faq-groups .faq-figure__cap {
    color: var(--muted);
  }
}

/* ---------- 降低动效偏好 ---------- */
@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-index__link,
  .page-faq .qa__q,
  .page-faq .qa__q::after {
    transition: none;
  }
}
<<<END>>>