.page-faq {
  --faq-rule-soft: rgba(46, 74, 104, .34);
  --faq-ink-soft: #4c6076;
  --faq-ink-line: rgba(16, 35, 58, .14);
  --faq-ink-faint: rgba(16, 35, 58, .07);
  display: block;
  background: var(--xb-deep);
  color: var(--xb-snow);
  font-family: var(--xb-font-cn);
  overflow-x: clip;
}

.page-faq a {
  color: inherit;
}

/* ---------- 首屏框景 ---------- */

.page-faq .faq-hero {
  position: relative;
  padding: clamp(20px, 3vw, 34px) 0 clamp(44px, 6vw, 76px);
  background:
    radial-gradient(120% 100% at 92% -20%, rgba(255, 106, 31, .16), transparent 62%),
    radial-gradient(70% 90% at -10% 110%, rgba(53, 224, 138, .08), transparent 60%),
    var(--xb-deep);
  overflow: hidden;
}

.page-faq .faq-hero__crumb {
  margin: 0 0 clamp(18px, 2.6vw, 30px);
}

.page-faq .faq-hero__crumb a {
  color: var(--xb-mist);
  text-decoration: none;
  transition: color .2s ease;
}

.page-faq .faq-hero__crumb a:hover {
  color: var(--xb-orange);
}

.page-faq .faq-hero__frame {
  position: relative;
  border: 1px solid var(--xb-rule);
  border-radius: var(--xb-radius);
  padding: clamp(24px, 3.4vw, 48px);
  background:
    linear-gradient(158deg, rgba(18, 38, 63, .94), rgba(10, 26, 46, .74) 62%, rgba(27, 58, 92, .5));
  box-shadow: var(--xb-shadow);
}

.page-faq .faq-hero__frame::after {
  content: "";
  position: absolute;
  right: 10px;
  bottom: 10px;
  width: 34px;
  height: 34px;
  border-right: 2px solid var(--xb-orange);
  border-bottom: 2px solid var(--xb-orange);
  border-radius: 0 0 8px 0;
  opacity: .85;
  pointer-events: none;
}

.page-faq .faq-hero__ruler {
  position: absolute;
  top: 11px;
  left: clamp(24px, 3.4vw, 48px);
  right: clamp(24px, 3.4vw, 48px);
  height: 11px;
  background-image: repeating-linear-gradient(to right, var(--xb-rule) 0 1px, transparent 1px 20px);
  opacity: .85;
  pointer-events: none;
}

.page-faq .faq-hero__ruler::after {
  content: "";
  position: absolute;
  inset: 0;
  background-image: repeating-linear-gradient(to right, var(--xb-orange) 0 2px, transparent 2px 180px);
  opacity: .9;
}

.page-faq .faq-hero__grid {
  display: grid;
  grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
  gap: clamp(26px, 4vw, 60px);
  align-items: center;
}

.page-faq .faq-hero__copy h1.xb-display {
  margin: 14px 0 18px;
}

.page-faq .faq-hero__copy .xb-lead {
  margin: 0 0 clamp(20px, 2.6vw, 28px);
  max-width: 46ch;
}

.page-faq .faq-hero__facts {
  list-style: none;
  margin: 0 0 clamp(18px, 2.4vw, 26px);
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 10px 26px;
}

.page-faq .faq-hero__facts li {
  display: flex;
  align-items: baseline;
  gap: 7px;
  font-size: 13.5px;
  color: var(--xb-mist);
}

.page-faq .faq-hero__factv {
  font-size: 20px;
  font-weight: 600;
  color: var(--xb-orange);
  letter-spacing: -.01em;
}

.page-faq .faq-hero__factk {
  line-height: 1.5;
}

.page-faq .faq-hero__meta {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

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

/* ---------- 六问六答 ---------- */

.page-faq .faq-quick {
  position: relative;
  padding: clamp(38px, 5vw, 66px) 0 clamp(52px, 7vw, 96px);
  background: linear-gradient(180deg, var(--xb-deep), var(--xb-night) 46%, var(--xb-deep));
}

.page-faq .faq-quick .xb-section__head {
  gap: 18px;
}

.page-faq .faq-quick__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  background: var(--faq-rule-soft);
  border: 1px solid var(--faq-rule-soft);
  border-radius: var(--xb-radius);
  overflow: hidden;
}

.page-faq .faq-quick__item {
  position: relative;
  background: var(--xb-deep);
  padding: clamp(20px, 2.6vw, 30px) clamp(18px, 2.4vw, 28px);
  padding-left: clamp(52px, 5vw, 70px);
  transition: background .25s ease;
}

.page-faq .faq-quick__item:hover {
  background: var(--xb-night);
}

.page-faq .faq-quick__no {
  position: absolute;
  top: clamp(20px, 2.6vw, 30px);
  left: clamp(18px, 2.2vw, 26px);
  font-family: var(--xb-font-mono);
  font-size: 13px;
  letter-spacing: .08em;
  color: var(--xb-orange);
}

.page-faq .faq-quick__q {
  margin: 0 0 10px;
  font-size: clamp(16px, 1.5vw, 18px);
  font-weight: 700;
  line-height: 1.55;
  color: var(--xb-snow);
  letter-spacing: -.01em;
}

.page-faq .faq-quick__a {
  margin: 0;
  font-size: 15px;
  line-height: 1.85;
  color: var(--xb-mist);
}

/* ---------- 问答主体（浅色阅读区） ---------- */

.page-faq .faq-body {
  position: relative;
  background: var(--xb-snow);
  color: var(--xb-ink);
  padding: clamp(88px, 10vw, 140px) 0 clamp(56px, 7vw, 100px);
}

.page-faq .faq-body::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: clamp(54px, 6.5vw, 90px);
  background: var(--xb-deep);
  clip-path: polygon(0 0, 100% 0, 100% 20%, 0 100%);
  pointer-events: none;
}

.page-faq .faq-body__sr {
  position: absolute;
  width: 1px;
  height: 1px;
  margin: -1px;
  padding: 0;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
  border: 0;
}

.page-faq .faq-body__grid {
  display: grid;
  grid-template-columns: minmax(0, 216px) minmax(0, 1fr);
  gap: clamp(28px, 4vw, 72px);
  align-items: start;
}

.page-faq .faq-body__index {
  position: sticky;
  top: clamp(86px, 9vw, 112px);
}

.page-faq .faq-body__index .xb-eyebrow {
  color: var(--faq-ink-soft);
  margin: 0;
}

.page-faq .faq-index {
  list-style: none;
  margin: 14px 0 0;
  padding: 0;
  border-left: 1px solid var(--faq-ink-line);
}

.page-faq .faq-index__link {
  display: flex;
  align-items: baseline;
  gap: 10px;
  margin-left: -1px;
  padding: 11px 0 11px 14px;
  border-left: 2px solid transparent;
  color: var(--faq-ink-soft);
  font-size: 15px;
  line-height: 1.45;
  text-decoration: none;
  transition: color .2s ease, border-color .2s ease;
}

.page-faq .faq-index__link:hover {
  color: var(--xb-ink);
}

.page-faq .faq-index__link.is-active {
  color: var(--xb-ink);
  font-weight: 600;
  border-left-color: var(--xb-orange);
}

.page-faq .faq-index__ix {
  font-family: var(--xb-font-mono);
  font-size: 12px;
  letter-spacing: .06em;
  color: var(--xb-orange);
}

/* ---------- 问答分组 ---------- */

.page-faq .faq-group {
  scroll-margin-top: clamp(90px, 9vw, 116px);
  padding-bottom: clamp(20px, 3vw, 32px);
  margin-bottom: clamp(30px, 4.4vw, 52px);
  border-bottom: 1px solid var(--faq-ink-line);
}

.page-faq .faq-group:last-child {
  border-bottom: 0;
  margin-bottom: 0;
}

.page-faq .faq-group__head {
  position: relative;
  display: flex;
  align-items: baseline;
  gap: 14px;
  padding-bottom: 14px;
  margin-bottom: 18px;
}

.page-faq .faq-group__head::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 100%;
  height: 1px;
  background: var(--faq-ink-line);
}

.page-faq .faq-group__head::before {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 56px;
  height: 2px;
  background: var(--xb-orange);
  z-index: 1;
}

.page-faq .faq-group__no {
  font-family: var(--xb-font-mono);
  font-size: 13px;
  letter-spacing: .1em;
  color: var(--xb-orange);
}

.page-faq .faq-group__title {
  margin: 0;
  font-size: clamp(22px, 2.7vw, 30px);
  font-weight: 800;
  letter-spacing: -.02em;
  line-height: 1.25;
  color: var(--xb-ink);
}

.page-faq .faq-timeline {
  margin: 0 0 20px;
  border-radius: 10px;
  overflow: hidden;
}

.page-faq .faq-timeline img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 9 / 5;
  object-fit: cover;
}

/* ---------- 折叠问答 ---------- */

.page-faq .faq-q {
  border: 0;
  border-bottom: 1px solid var(--faq-ink-line);
  border-left: 2px solid transparent;
  margin-left: -14px;
  padding-left: 14px;
  transition: border-color .2s ease, background .2s ease;
}

.page-faq .faq-q:last-of-type {
  border-bottom: 0;
}

.page-faq .faq-q:hover,
.page-faq .faq-q[open] {
  border-left-color: var(--xb-orange);
  background: var(--faq-ink-faint);
}

.page-faq .faq-q > summary {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  padding: 18px 0;
  font-size: clamp(15.5px, 1.4vw, 17px);
  font-weight: 600;
  line-height: 1.6;
  color: var(--xb-ink);
  cursor: pointer;
  list-style: none;
}

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

.page-faq .faq-q > summary::marker {
  content: "";
}

.page-faq .faq-q > summary::after {
  content: "+";
  flex: 0 0 auto;
  margin-left: auto;
  padding-left: 12px;
  font-family: var(--xb-font-mono);
  font-size: 19px;
  font-weight: 400;
  line-height: 1.2;
  color: var(--xb-orange);
  transition: transform .25s ease;
}

.page-faq .faq-q[open] > summary::after {
  content: "\2212";
}

.page-faq .faq-q > summary:hover {
  color: var(--xb-orange);
}

.page-faq .faq-q__body {
  padding: 0 0 18px 16px;
  font-size: 15.5px;
  line-height: 1.85;
  color: var(--faq-ink-soft);
}

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

.page-faq .faq-q__body p + p {
  margin-top: 12px;
}

.page-faq .faq-q[open] .faq-q__body {
  animation: faqQBodyIn .3s ease both;
}

@keyframes faqQBodyIn {
  from { opacity: 0; transform: translateY(-6px); }
  to { opacity: 1; transform: none; }
}

.page-faq .faq-note {
  margin-top: 12px !important;
  padding: 9px 14px;
  border-left: 2px solid var(--xb-tactic);
  background: rgba(27, 58, 92, .07);
  font-family: var(--xb-font-mono);
  font-size: 12.5px;
  line-height: 1.7;
  letter-spacing: .01em;
  color: var(--xb-ink);
}

.page-faq .faq-group__more {
  margin: 20px 0 0;
  padding-top: 14px;
  border-top: 1px dashed var(--faq-ink-line);
  font-size: 14px;
  line-height: 1.7;
  color: var(--faq-ink-soft);
}

.page-faq .faq-group__more a {
  color: var(--xb-ink);
  text-decoration: none;
  border-bottom: 1px solid var(--xb-orange);
  padding-bottom: 1px;
  transition: color .2s ease;
}

.page-faq .faq-group__more a:hover {
  color: var(--xb-orange);
}

/* ---------- 收尾引导 ---------- */

.page-faq .faq-cta {
  position: relative;
  padding: clamp(52px, 7vw, 100px) 0 clamp(58px, 8vw, 108px);
  background:
    radial-gradient(90% 110% at 88% 0%, rgba(255, 106, 31, .15), transparent 62%),
    radial-gradient(70% 90% at 0% 100%, rgba(53, 224, 138, .07), transparent 60%),
    var(--xb-deep);
  color: var(--xb-snow);
}

.page-faq .faq-cta__box {
  position: relative;
  max-width: 900px;
  border: 1px solid var(--xb-rule);
  border-radius: var(--xb-radius);
  padding: clamp(26px, 4vw, 50px);
  background: linear-gradient(152deg, rgba(18, 38, 63, .92), rgba(10, 26, 46, .72));
}

.page-faq .faq-cta__box::before {
  content: "";
  position: absolute;
  top: 0;
  left: clamp(26px, 4vw, 50px);
  width: 64px;
  height: 3px;
  background: var(--xb-orange);
}

.page-faq .faq-cta__box h2 {
  margin: 12px 0 14px;
}

.page-faq .faq-cta__text {
  margin: 0 0 clamp(22px, 3vw, 30px);
  max-width: 62ch;
  font-size: 15.5px;
  line-height: 1.85;
  color: var(--xb-mist);
}

.page-faq .faq-cta__text a {
  color: var(--xb-snow);
  text-decoration: none;
  border-bottom: 1px solid var(--xb-orange);
  padding-bottom: 1px;
}

.page-faq .faq-cta__text a:hover {
  color: var(--xb-orange);
}

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

/* ---------- 响应式 ---------- */

@media (max-width: 1020px) {
  .page-faq .faq-hero__grid {
    grid-template-columns: minmax(0, 1fr);
  }

  .page-faq .faq-hero__fig {
    order: -1;
  }

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

@media (max-width: 920px) {
  .page-faq .faq-body__index {
    position: static;
    margin-bottom: 10px;
  }

  .page-faq .faq-index {
    display: flex;
    gap: 6px;
    margin-top: 12px;
    border-left: 0;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    padding-bottom: 6px;
    scrollbar-width: thin;
  }

  .page-faq .faq-index__item {
    flex: 0 0 auto;
  }

  .page-faq .faq-index__link {
    margin-left: 0;
    padding: 8px 13px;
    border-left: 0;
    border-bottom: 2px solid transparent;
    border-radius: 6px;
    background: var(--faq-ink-faint);
    white-space: nowrap;
    font-size: 14px;
  }

  .page-faq .faq-index__link.is-active {
    border-bottom-color: var(--xb-orange);
    background: rgba(255, 106, 31, .09);
  }
}

@media (max-width: 760px) {
  .page-faq .faq-quick__list {
    grid-template-columns: minmax(0, 1fr);
  }

  .page-faq .faq-quick__item {
    padding-left: clamp(48px, 13vw, 62px);
  }

  .page-faq .faq-q {
    margin-left: -10px;
    padding-left: 10px;
  }

  .page-faq .faq-q__body {
    padding-left: 14px;
  }

  .page-faq .faq-hero__facts {
    gap: 8px 18px;
  }

  .page-faq .faq-hero__factv {
    font-size: 18px;
  }

  .page-faq .faq-cta__actions .xb-btn {
    width: 100%;
    justify-content: center;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-quick__item,
  .page-faq .faq-q,
  .page-faq .faq-index__link {
    transition: none;
  }

  .page-faq .faq-q[open] .faq-q__body {
    animation: none;
  }
}
<<<END>>>