.page-faq {
  --faq-rail-w: 232px;
  --faq-soft: #39424b;
  --faq-answer: #2f3942;
  background-color: var(--stone);
  color: var(--ink);
  font-family: var(--font-sans);
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  overflow: hidden;
  padding: 46px 0 38px;
  border-bottom: 1px solid var(--mist);
  background-image:
    repeating-linear-gradient(102deg, rgba(14, 78, 118, 0.075) 0 1px, transparent 1px 22px),
    linear-gradient(198deg, rgba(14, 78, 118, 0.15), rgba(244, 241, 233, 0) 64%);
}

.page-faq .faq-hero::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 6px;
  background: linear-gradient(180deg, var(--qk-green), var(--lake-l) 58%, var(--lava));
}

.page-faq .faq-hero__inner {
  position: relative;
}

.page-faq .faq-hero__mark {
  position: absolute;
  right: -6px;
  top: -34px;
  font-family: var(--font-mono);
  font-weight: 600;
  font-size: clamp(6.5rem, 25vw, 13rem);
  line-height: 0.78;
  letter-spacing: -0.05em;
  color: rgba(14, 78, 118, 0.085);
  pointer-events: none;
  user-select: none;
}

.page-faq .faq-hero__title {
  margin: 14px 0 0;
  max-width: 18em;
  font-size: clamp(1.85rem, 7vw, 3.5rem);
  font-weight: 900;
  line-height: 1.08;
  letter-spacing: -0.02em;
  color: var(--lake-ink);
}

.page-faq .faq-hero__lede {
  margin: 20px 0 0;
  max-width: 62ch;
  font-size: 1rem;
  line-height: 1.85;
  color: var(--faq-soft);
}

.page-faq .faq-hero__facts {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 28px;
  margin: 26px 0 0;
  padding: 16px 0 0;
  border-top: 1px solid var(--mist);
  list-style: none;
  font-size: 0.875rem;
  color: var(--muted);
}

.page-faq .faq-hero__facts li {
  display: flex;
  align-items: baseline;
  gap: 8px;
}

.page-faq .faq-hero__facts b {
  font-family: var(--font-mono);
  font-size: 1.375rem;
  font-weight: 600;
  color: var(--lake);
}

/* ---------- 主体分栏 ---------- */
.page-faq .faq-body {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 30px;
  padding-top: 36px;
  padding-bottom: 68px;
}

/* ---------- 左侧索引 ---------- */
.page-faq .faq-rail {
  padding-top: 14px;
  border-top: 3px solid var(--qk-green);
}

.page-faq .faq-rail__list {
  position: relative;
  margin: 16px 0 0;
  padding: 0 0 0 20px;
  list-style: none;
}

.page-faq .faq-rail__list::before {
  content: "";
  position: absolute;
  left: 4px;
  top: 12px;
  bottom: 12px;
  width: 1px;
  background: linear-gradient(180deg, var(--qk-green), var(--lake-l));
}

.page-faq .faq-rail__item {
  position: relative;
}

.page-faq .faq-rail__item::before {
  content: "";
  position: absolute;
  left: -20px;
  top: 17px;
  width: 7px;
  height: 7px;
  background: var(--stone);
  border: 1px solid var(--lake-l);
  transform: rotate(45deg);
}

.page-faq .faq-rail__link {
  display: grid;
  grid-template-columns: 30px minmax(0, 1fr);
  gap: 8px;
  align-items: baseline;
  padding: 9px 0;
  border-bottom: 1px solid var(--mist);
  color: var(--ink);
  text-decoration: none;
  font-size: 0.9375rem;
  line-height: 1.55;
  transition: color 0.18s var(--ease);
}

.page-faq .faq-rail__link:hover,
.page-faq .faq-rail__link:focus-visible {
  color: var(--lava);
}

.page-faq .faq-rail__num {
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  color: var(--qk-green);
}

.page-faq .faq-rail__foot {
  margin: 18px 0 0;
  font-size: 0.8125rem;
  line-height: 1.75;
  color: var(--muted);
}

/* ---------- 右侧问答组 ---------- */
.page-faq .faq-groups {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 46px;
}

.page-faq .faq-group {
  scroll-margin-top: 84px;
}

.page-faq .faq-group__head {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 6px 14px;
  padding-bottom: 12px;
  border-bottom: 2px solid var(--lake);
  margin-bottom: 2px;
}

.page-faq .faq-group__num {
  font-family: var(--font-mono);
  font-size: 0.875rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  color: var(--lava);
}

.page-faq .faq-group__title {
  margin: 0;
  font-family: var(--font-serif);
  font-size: clamp(1.25rem, 4.4vw, 1.6rem);
  font-weight: 600;
  line-height: 1.32;
  letter-spacing: 0.01em;
  color: var(--lake-ink);
}

.page-faq .faq-group__note {
  margin-left: auto;
  font-size: 0.75rem;
  letter-spacing: 0.1em;
  color: var(--muted);
}

.page-faq .faq-group__lede {
  margin: 14px 0 16px;
  font-size: 0.9375rem;
  line-height: 1.85;
  color: var(--muted);
}

.page-faq .faq-group__lede a {
  color: var(--lake-l);
  text-decoration: underline;
  text-underline-offset: 3px;
}

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

.page-faq .faq-item__q {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 16px 0;
  cursor: pointer;
  list-style: none;
  font-size: 1rem;
  font-weight: 700;
  line-height: 1.6;
  color: var(--ink);
  transition: color 0.18s 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,
.page-faq .faq-item__q:focus-visible {
  color: var(--qk-green);
}

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

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

.page-faq .faq-item__sign {
  position: relative;
  flex: none;
  width: 15px;
  height: 15px;
  margin-top: 5px;
}

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

.page-faq .faq-item__sign::before {
  left: 0;
  right: 0;
  top: 6.75px;
  height: 1.5px;
}

.page-faq .faq-item__sign::after {
  top: 0;
  bottom: 0;
  left: 6.75px;
  width: 1.5px;
  transition: transform 0.22s var(--ease);
}

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

.page-faq .faq-item__a {
  margin: 0 0 16px 12px;
  padding: 15px 18px 17px;
  background: var(--ice);
  border-left: 3px solid var(--qk-green-l);
  font-size: 0.9375rem;
  line-height: 1.85;
  color: var(--faq-answer);
  animation: faq-drop 0.24s var(--ease);
}

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

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-item__a {
    animation: none;
  }
}

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

.page-faq .faq-item__a p + p {
  margin-top: 10px;
}

.page-faq .faq-item__a a {
  color: var(--lake-l);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.page-faq .faq-num {
  font-family: var(--font-mono);
  font-weight: 600;
  color: var(--lava);
  padding: 0 0.06em;
}

/* ---------- 场景图文 ---------- */
.page-faq .faq-scene {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 22px;
  margin-top: 10px;
}

.page-faq .media-frame {
  margin: 0;
}

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

.page-faq .faq-scene__figure {
  max-width: 260px;
  border-top: 3px solid var(--lake-l);
  padding-top: 10px;
}

.page-faq .faq-scene__figure .media-frame__cap {
  display: block;
  margin-top: 10px;
  font-size: 0.8125rem;
  line-height: 1.7;
  color: var(--muted);
}

/* ---------- 支持通道 ---------- */
.page-faq .faq-support {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 26px;
  margin-top: 8px;
}

.page-faq .faq-support__list {
  display: grid;
  gap: 10px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-faq .faq-support__list li {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 3px;
  padding: 12px 14px;
  background: #ffffff;
  border-left: 3px solid var(--lake-l);
  font-size: 0.9375rem;
  line-height: 1.72;
  color: var(--faq-answer);
}

.page-faq .faq-support__k {
  font-size: 0.75rem;
  letter-spacing: 0.1em;
  color: var(--muted);
}

.page-faq .faq-support__contacts {
  margin-top: 20px;
  padding: 18px 20px 20px;
  background: var(--lake);
  color: #eaf2f8;
}

.page-faq .faq-support__crow {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 4px 14px;
  margin: 0 0 10px;
  font-size: 0.9375rem;
  line-height: 1.7;
}

.page-faq .faq-support__crow span {
  flex: 0 0 80px;
  font-size: 0.75rem;
  letter-spacing: 0.1em;
  color: rgba(234, 242, 248, 0.62);
}

.page-faq .faq-support__crow b {
  font-family: var(--font-mono);
  font-weight: 600;
  color: #ffffff;
  word-break: break-all;
}

.page-faq .faq-support__crow--text b {
  font-family: var(--font-sans);
  font-weight: 600;
  word-break: normal;
}

.page-faq .faq-support__note {
  margin: 14px 0 0;
  font-size: 0.8125rem;
  line-height: 1.75;
  color: rgba(234, 242, 248, 0.62);
}

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

.page-faq .faq-support__figure {
  border-top: 3px solid var(--lava);
  padding-top: 10px;
}

.page-faq .faq-support__figure .media-frame__cap {
  display: block;
  margin-top: 10px;
  font-size: 0.8125rem;
  line-height: 1.7;
  color: var(--muted);
}

/* ---------- 响应式 ---------- */
@media (min-width: 640px) {
  .page-faq .faq-scene {
    grid-template-columns: minmax(0, 1fr) 220px;
    gap: 30px;
    align-items: start;
  }
}

@media (min-width: 800px) {
  .page-faq .faq-support {
    grid-template-columns: minmax(0, 1fr) 300px;
    gap: 36px;
    align-items: start;
  }
}

@media (min-width: 960px) {
  .page-faq .faq-hero {
    padding: 60px 0 48px;
  }

  .page-faq .faq-body {
    grid-template-columns: var(--faq-rail-w) minmax(0, 1fr);
    gap: 60px;
    padding-top: 52px;
    padding-bottom: 84px;
  }

  .page-faq .faq-rail {
    position: sticky;
    top: 22px;
    align-self: start;
  }

  .page-faq .faq-groups {
    gap: 54px;
  }

  .page-faq .faq-rail__link {
    font-size: 0.9375rem;
  }
}
<<<END>>>