.page-faq {
  display: block;
  background: var(--blue-900);
  color: var(--mist-050);
}

/* ---------- 首屏声明 ---------- */
.page-faq .faq-intro {
  position: relative;
  overflow: hidden;
  padding: clamp(26px, 4.4vw, 60px) 0 clamp(26px, 3.6vw, 50px);
  border-bottom: 1px solid var(--line-soft);
  background: linear-gradient(170deg, var(--blue-900) 0%, var(--blue-700) 100%);
}

.page-faq .faq-intro::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background-image:
    linear-gradient(to right, rgba(47, 91, 122, .3) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(47, 91, 122, .3) 1px, transparent 1px);
  background-size: 64px 64px;
  -webkit-mask-image: linear-gradient(180deg, rgba(0, 0, 0, .75), transparent 82%);
  mask-image: linear-gradient(180deg, rgba(0, 0, 0, .75), transparent 82%);
}

.page-faq .faq-intro > .container {
  position: relative;
  z-index: 1;
}

.page-faq .faq-intro__eyebrow {
  color: var(--cyan-500);
  margin: 18px 0 14px;
  letter-spacing: .14em;
}

.page-faq .faq-intro__title {
  margin: 0 0 18px;
  max-width: 26ch;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(1.95rem, 6.4vw, 4rem);
  line-height: 1.04;
  letter-spacing: -0.02em;
  color: var(--paper-000);
}

.page-faq .faq-intro__lede {
  margin: 0 0 clamp(24px, 3.2vw, 36px);
  max-width: 64ch;
  color: var(--text-soft);
}

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

.page-faq .faq-intro__facts li {
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding: 14px 16px;
  background: rgba(4, 24, 43, .78);
}

.page-faq .faq-intro__facts .mono {
  font-size: var(--fs-20);
  font-weight: 700;
  color: var(--cyan-500);
  letter-spacing: -0.01em;
}

.page-faq .faq-intro__facts li > span:last-child {
  font-size: var(--fs-12);
  letter-spacing: .05em;
  color: var(--text-mute);
}

/* ---------- 第 02 条视觉锚点 ---------- */
.page-faq .faq-anchor {
  position: relative;
  padding: clamp(28px, 4vw, 56px) 0;
  border-bottom: 1px solid var(--line-soft);
  background: linear-gradient(128deg, var(--blue-900) 0%, var(--blue-500) 58%, var(--blue-700) 100%);
}

.page-faq .faq-anchor__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 18px;
}

.page-faq .faq-anchor__label {
  display: flex;
  align-items: baseline;
  gap: 12px;
  padding-left: 14px;
  border-left: 3px solid var(--orange-500);
}

.page-faq .faq-anchor__num {
  font-size: clamp(2.5rem, 8vw, 4rem);
  font-weight: 700;
  line-height: .86;
  letter-spacing: -0.05em;
  color: var(--cyan-500);
}

.page-faq .faq-anchor__tag {
  font-size: var(--fs-12);
  letter-spacing: .12em;
  color: var(--paper-000);
}

.page-faq .faq-anchor__body {
  padding: clamp(18px, 2.6vw, 30px);
  border: 1px solid var(--cyan-500);
  border-radius: var(--radius);
  background: rgba(4, 24, 43, .6);
}

.page-faq .faq-anchor__title {
  margin: 0 0 14px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(1.35rem, 3.4vw, 1.9rem);
  letter-spacing: -0.01em;
  color: var(--paper-000);
}

.page-faq .faq-anchor__text {
  margin: 0 0 12px;
  font-size: var(--fs-16);
  line-height: 1.78;
  color: var(--mist-050);
}

.page-faq .faq-examples {
  list-style: none;
  margin: 22px 0 0;
  padding: 0;
  border-top: 1px solid var(--line-soft);
}

.page-faq .faq-examples__row {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 4px;
  padding: 12px 0;
  border-bottom: 1px solid var(--line-soft);
}

.page-faq .faq-examples__key {
  font-size: var(--fs-12);
  letter-spacing: .1em;
  color: var(--cyan-500);
}

.page-faq .faq-examples__val {
  font-size: var(--fs-14);
  line-height: 1.6;
  color: var(--mist-050);
}

.page-faq .faq-examples__arrow {
  display: none;
  color: var(--cyan-700);
}

.page-faq .faq-anchor__media {
  margin: 8px 0 0;
}

.page-faq .faq-anchor__media .media__frame {
  aspect-ratio: 1100 / 680;
  border: 1px solid var(--line-soft);
}

/* ---------- 问答分组 ---------- */
.page-faq .faq-groups {
  padding: clamp(34px, 5vw, 74px) 0 clamp(30px, 4vw, 56px);
  background: var(--blue-900);
}

.page-faq .faq-groups .section-head__index {
  color: var(--cyan-500);
}

.page-faq .faq-groups .section-head__title {
  color: var(--paper-000);
}

.page-faq .faq-groups .section-head__note {
  color: var(--text-soft);
}

.page-faq .faq-map {
  margin: clamp(20px, 2.6vw, 32px) 0 clamp(26px, 3.4vw, 44px);
}

.page-faq .faq-map .media__frame {
  aspect-ratio: 900 / 560;
  border: 1px solid var(--line-soft);
}

.page-faq .faq-group {
  padding-top: 16px;
  margin-top: clamp(24px, 3.2vw, 42px);
  border-top: 1px solid var(--line-soft);
}

.page-faq .faq-group:first-of-type {
  margin-top: 0;
}

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

.page-faq .faq-group__label {
  flex: none;
  font-size: var(--fs-12);
  letter-spacing: .14em;
  color: var(--cyan-500);
  white-space: nowrap;
}

.page-faq .faq-group__head::after {
  content: "";
  flex: 1 1 auto;
  height: 1px;
  background: var(--line-soft);
}

.page-faq .faq-group__list {
  border-top: 1px solid var(--line-soft);
}

/* ---------- 单条问答 ---------- */
.page-faq .faq-item {
  border-bottom: 1px solid var(--line-soft);
  transition: background var(--dur) var(--ease);
}

.page-faq .faq-item[open] {
  background: rgba(18, 70, 110, .38);
}

.page-faq .faq-item__sum {
  list-style: none;
  display: grid;
  grid-template-columns: 2.2rem minmax(0, 1fr) auto;
  align-items: start;
  gap: 12px;
  padding: 16px 6px;
  cursor: pointer;
  transition: color var(--dur) var(--ease), background var(--dur) var(--ease);
}

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

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

.page-faq .faq-item__sum:hover {
  background: rgba(18, 214, 200, .07);
}

.page-faq .faq-item__sum:focus-visible {
  outline: 2px solid var(--cyan-500);
  outline-offset: -2px;
}

.page-faq .faq-item__num {
  padding-top: 3px;
  font-size: var(--fs-12);
  letter-spacing: .06em;
  color: var(--cyan-700);
  font-variant-numeric: tabular-nums;
}

.page-faq .faq-item__q {
  font-size: var(--fs-16);
  line-height: 1.55;
  font-weight: 500;
  color: var(--paper-000);
  transition: color var(--dur) var(--ease);
}

.page-faq .faq-item__sum:hover .faq-item__q {
  color: var(--cyan-500);
}

.page-faq .faq-item__caret {
  width: 9px;
  height: 9px;
  margin-top: 8px;
  border-right: 1px solid var(--cyan-500);
  border-bottom: 1px solid var(--cyan-500);
  transform: rotate(45deg);
  transition: transform var(--dur) var(--ease);
}

.page-faq .faq-item[open] .faq-item__caret {
  transform: rotate(-135deg);
  border-color: var(--orange-500);
}

.page-faq .faq-item__ans {
  margin: 0 6px 18px;
  padding: clamp(16px, 2.2vw, 22px) clamp(16px, 2.4vw, 26px);
  border-left: 3px solid var(--cyan-500);
  border-radius: var(--radius);
  background: var(--mist-050);
  color: var(--ink-800);
}

.page-faq .faq-item__ans p {
  margin: 0 0 10px;
  font-size: var(--fs-14);
  line-height: 1.78;
}

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

.page-faq .faq-item__ans a {
  color: var(--cyan-700);
  text-decoration: none;
  border-bottom: 1px solid currentColor;
}

.page-faq .faq-item__ans a:hover {
  color: var(--blue-500);
}

.page-faq .faq-item__path {
  padding: 9px 12px;
  border-left: 2px solid var(--cyan-700);
  border-radius: var(--radius);
  background: rgba(18, 214, 200, .14);
  color: var(--blue-700);
  font-size: var(--fs-12);
  letter-spacing: .02em;
  word-break: break-word;
}

/* ---------- 收尾引导 ---------- */
.page-faq .faq-tail {
  padding: clamp(26px, 3.6vw, 54px) 0 clamp(40px, 5vw, 78px);
  background: var(--blue-900);
}

.page-faq .faq-tail__panel {
  display: grid;
  gap: 22px;
  padding: clamp(22px, 3vw, 38px);
  border: 1px solid var(--line-soft);
  border-top: 2px solid var(--orange-500);
  border-radius: var(--radius);
  background: linear-gradient(120deg, var(--blue-700) 0%, var(--blue-500) 100%);
}

.page-faq .faq-tail__text .eyebrow {
  color: var(--orange-500);
  letter-spacing: .14em;
}

.page-faq .faq-tail__title {
  margin: 10px 0 12px;
  max-width: 24ch;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(1.3rem, 3.4vw, 1.9rem);
  line-height: 1.2;
  letter-spacing: -0.01em;
  color: var(--paper-000);
}

.page-faq .faq-tail__note {
  margin: 0;
  max-width: 62ch;
  font-size: var(--fs-14);
  line-height: 1.75;
  color: var(--text-soft);
}

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

/* ---------- 响应式 ---------- */
@media (min-width: 640px) {
  .page-faq .faq-intro__facts {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

@media (min-width: 900px) {
  .page-faq .faq-anchor__grid {
    grid-template-columns: 176px minmax(0, 1fr);
    gap: 26px 44px;
  }

  .page-faq .faq-anchor__label {
    flex-direction: column;
    align-items: flex-start;
    gap: 16px;
  }

  .page-faq .faq-anchor__media {
    grid-column: 1 / -1;
    margin-top: 6px;
  }

  .page-faq .faq-examples__row {
    grid-template-columns: 168px 28px minmax(0, 1fr);
    align-items: center;
    gap: 12px;
  }

  .page-faq .faq-examples__arrow {
    display: block;
  }

  .page-faq .faq-tail__panel {
    grid-template-columns: minmax(0, 1fr) auto;
    align-items: end;
  }

  .page-faq .faq-tail__actions {
    justify-content: flex-end;
  }
}

@media (min-width: 1100px) {
  .page-faq .faq-item__sum {
    grid-template-columns: 3rem minmax(0, 1fr) auto;
    padding: 18px 8px;
  }

  .page-faq .faq-item__ans {
    margin-left: calc(3rem + 12px);
    margin-right: 8px;
  }
}
<<<END>>>