.page-faq {
  --faq-hair: var(--rock);
  --faq-tint: rgba(57, 196, 110, 0.08);
}

.page-faq .faq-hero {
  position: relative;
  border-bottom: 1px solid var(--faq-hair);
  overflow: hidden;
}

.page-faq .faq-hero__band {
  position: relative;
  height: clamp(130px, 26vw, 250px);
  overflow: hidden;
  border-bottom: 1px solid var(--faq-hair);
}

.page-faq .faq-hero__band img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: saturate(0.85) brightness(0.7);
}

.page-faq .faq-hero__band::after {
  content: "";
  position: absolute;
  inset: 0;
  background:
    radial-gradient(60% 90% at 22% 40%, rgba(57, 196, 110, 0.18), transparent 70%),
    linear-gradient(180deg, rgba(8, 19, 38, 0.15) 0%, rgba(8, 19, 38, 0.88) 100%);
  pointer-events: none;
}

.page-faq .faq-hero__inner {
  padding-top: clamp(20px, 3.4vw, 40px);
  padding-bottom: clamp(24px, 4vw, 48px);
}

.page-faq .breadcrumb {
  font-size: var(--fs-12);
  color: var(--note);
  margin-bottom: 18px;
}

.page-faq .breadcrumb a {
  color: var(--note);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: border-color var(--ease), color var(--ease);
}

.page-faq .breadcrumb a:hover {
  color: var(--snow);
  border-bottom-color: var(--turf);
}

.page-faq .breadcrumb__sep {
  padding: 0 6px;
  color: var(--rock);
}

.page-faq .faq-hero__eyebrow {
  display: block;
  font-size: var(--fs-12);
  letter-spacing: 0.16em;
  color: var(--moss);
  margin: 0 0 14px;
}

.page-faq h1 {
  margin: 0;
  font-family: var(--sans);
  font-size: clamp(30px, 5.6vw, 64px);
  line-height: 1.04;
  letter-spacing: -0.03em;
  font-weight: 700;
  color: var(--snow);
  max-width: 20ch;
}

.page-faq .faq-hero__lead {
  margin: 18px 0 0;
  max-width: 60ch;
  font-size: var(--fs-15);
  line-height: 1.85;
  color: var(--snow);
  opacity: 0.84;
}

.page-faq .faq-facts {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1px;
  margin: clamp(22px, 3vw, 34px) 0 0;
  background: var(--faq-hair);
  border: 1px solid var(--faq-hair);
}

.page-faq .faq-facts .stat {
  background: var(--stand);
  padding: 12px 12px 14px;
  display: flex;
  flex-direction: column-reverse;
  gap: 6px;
}

.page-faq .faq-facts .stat__value {
  margin: 0;
  font-family: var(--mono);
  font-variant-numeric: tabular-nums;
  font-size: clamp(20px, 2.6vw, 30px);
  line-height: 1;
  color: var(--cyan);
}

.page-faq .faq-facts .stat__label {
  font-size: var(--fs-12);
  line-height: 1.5;
  color: var(--note);
}

.page-faq .faq-layout {
  display: grid;
  gap: clamp(20px, 3vw, 40px);
  padding-top: clamp(24px, 4vw, 52px);
  padding-bottom: clamp(40px, 6vw, 84px);
}

/* ---------- 问题索引 ---------- */

.page-faq .faq-index {
  border: 1px solid var(--faq-hair);
  background: var(--stand);
  align-self: start;
}

.page-faq .faq-index__summary {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 12px;
  padding: 13px 16px;
  cursor: pointer;
  list-style: none;
  border-bottom: 1px solid var(--faq-hair);
  transition: background-color var(--ease);
}

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

.page-faq .faq-index__summary:hover {
  background: var(--faq-tint);
}

.page-faq .faq-index__label {
  font-size: var(--fs-13);
  letter-spacing: 0.14em;
  color: var(--snow);
}

.page-faq .faq-index__count {
  font-size: var(--fs-12);
  color: var(--clay);
  letter-spacing: 0.06em;
}

.page-faq .faq-index__body {
  padding: 4px 0 8px;
}

.page-faq .faq-index__group + .faq-index__group {
  border-top: 1px solid var(--faq-hair);
}

.page-faq .faq-index__group-title {
  margin: 0;
  padding: 12px 16px 6px;
  font-size: var(--fs-12);
  letter-spacing: 0.12em;
  color: var(--moss);
}

.page-faq .faq-index__list {
  list-style: none;
  margin: 0;
  padding: 0 8px 10px;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 2px;
}

.page-faq .faq-index__link {
  display: flex;
  align-items: baseline;
  gap: 7px;
  padding: 6px 8px;
  font-size: var(--fs-12);
  line-height: 1.5;
  color: var(--snow);
  text-decoration: none;
  border: 1px solid transparent;
  transition: border-color var(--ease), background-color var(--ease);
}

.page-faq .faq-index__link .mono {
  font-family: var(--mono);
  font-variant-numeric: tabular-nums;
  font-size: 11px;
  color: var(--clay);
  transition: color var(--ease);
}

.page-faq .faq-index__link:hover,
.page-faq .faq-index__link:focus-visible {
  border-color: var(--turf);
  background: var(--faq-tint);
}

.page-faq .faq-index__link:hover .mono {
  color: var(--turf);
}

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

/* ---------- 答案区 ---------- */

.page-faq .faq-group {
  margin-bottom: clamp(32px, 5vw, 56px);
}

.page-faq .faq-group:last-of-type {
  margin-bottom: clamp(24px, 4vw, 40px);
}

.page-faq .faq-group__head {
  display: flex;
  align-items: baseline;
  gap: 12px;
  border-left: 4px solid var(--turf);
  padding-left: 12px;
  margin-bottom: 10px;
}

.page-faq .faq-group__num {
  font-family: var(--mono);
  font-variant-numeric: tabular-nums;
  font-size: var(--fs-12);
  color: var(--clay);
  letter-spacing: 0.08em;
}

.page-faq .faq-group__title {
  margin: 0;
  font-family: var(--sans);
  font-size: clamp(20px, 2.6vw, 30px);
  line-height: 1.2;
  letter-spacing: -0.02em;
  color: var(--snow);
}

.page-faq .faq-group__note {
  margin: 0 0 18px;
  padding-left: 16px;
  max-width: 58ch;
  font-size: var(--fs-13);
  line-height: 1.75;
  color: var(--note);
}

.page-faq .faq-group__note a {
  color: var(--turf);
  text-decoration: none;
  border-bottom: 1px solid rgba(57, 196, 110, 0.4);
  transition: border-color var(--ease);
}

.page-faq .faq-group__note a:hover {
  border-bottom-color: var(--turf);
}

.page-faq .faq-figure {
  margin: 0 0 20px;
  border: 1px solid var(--faq-hair);
  background: var(--stand);
}

.page-faq .faq-figure img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  object-fit: cover;
  filter: brightness(0.86);
}

.page-faq .faq-figure figcaption {
  padding: 9px 14px;
  border-top: 1px solid var(--faq-hair);
  font-size: var(--fs-12);
  line-height: 1.6;
  color: var(--note);
}

.page-faq .qa {
  border: 1px solid var(--faq-hair);
  background: var(--stand);
  transition: border-color var(--ease), background-color var(--ease);
}

.page-faq .qa + .qa {
  margin-top: -1px;
}

.page-faq .qa:hover {
  border-color: var(--turf);
  position: relative;
  z-index: 1;
}

.page-faq .qa[open] {
  border-color: var(--turf);
  position: relative;
  z-index: 1;
  background: var(--ink);
}

.page-faq .qa summary {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 15px 16px;
  cursor: pointer;
  list-style: none;
  transition: background-color var(--ease);
}

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

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

.page-faq .qa summary::after {
  content: "+";
  margin-left: auto;
  font-family: var(--mono);
  font-size: 17px;
  line-height: 1;
  color: var(--moss);
  transition: color var(--ease);
}

.page-faq .qa[open] summary::after {
  content: "–";
  color: var(--turf);
}

.page-faq .qa__num {
  flex: 0 0 auto;
  font-family: var(--mono);
  font-variant-numeric: tabular-nums;
  font-size: 12px;
  line-height: 1;
  padding-top: 5px;
  color: var(--clay);
  letter-spacing: 0.04em;
  transition: color var(--ease);
}

.page-faq .qa summary:hover .qa__num,
.page-faq .qa[open] .qa__num {
  color: var(--turf);
}

.page-faq .qa__q {
  flex: 1 1 auto;
  min-width: 0;
  font-size: var(--fs-15);
  font-weight: 600;
  line-height: 1.6;
  color: var(--snow);
}

.page-faq .qa__body {
  padding: 2px 16px 18px;
  font-size: var(--fs-15);
  line-height: 1.85;
  color: var(--snow);
  opacity: 0.88;
}

.page-faq .qa__body p {
  margin: 0 0 10px;
  max-width: 62ch;
}

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

.page-faq .qa__body ol {
  margin: 0;
  padding-left: 1.2em;
  max-width: 62ch;
}

.page-faq .qa__body li {
  margin-bottom: 6px;
}

.page-faq .qa__body li:last-child {
  margin-bottom: 0;
}

.page-faq .qa__body a {
  color: var(--turf);
  text-decoration: none;
  border-bottom: 1px solid rgba(57, 196, 110, 0.45);
  transition: border-color var(--ease);
}

.page-faq .qa__body a:hover {
  border-bottom-color: var(--turf);
}

.page-faq .qa__body .mono {
  font-family: var(--mono);
  font-size: 0.94em;
  color: var(--cyan);
  letter-spacing: 0.01em;
}

.page-faq .qa[open] .qa__body {
  animation: faq-reveal 200ms ease-out both;
}

@keyframes faq-reveal {
  from {
    opacity: 0;
    transform: translateY(-4px);
  }
  to {
    opacity: 0.88;
    transform: none;
  }
}

/* ---------- 底部行动带 ---------- */

.page-faq .faq-cta {
  display: grid;
  gap: 18px;
  padding: clamp(20px, 3.2vw, 34px);
  border: 1px solid var(--faq-hair);
  background:
    radial-gradient(70% 120% at 88% 20%, rgba(255, 122, 61, 0.14), transparent 65%),
    var(--stand);
}

.page-faq .faq-cta__title {
  margin: 0 0 8px;
  font-size: clamp(19px, 2.4vw, 26px);
  line-height: 1.25;
  letter-spacing: -0.02em;
  color: var(--snow);
}

.page-faq .faq-cta__text {
  margin: 0;
  max-width: 54ch;
  font-size: var(--fs-15);
  line-height: 1.8;
  color: var(--note);
}

.page-faq .faq-cta__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

@media (min-width: 640px) {
  .page-faq .faq-layout {
    padding-top: clamp(28px, 4vw, 56px);
  }

  .page-faq .faq-index__list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-faq .qa summary {
    padding: 16px 20px;
  }

  .page-faq .qa__body {
    padding: 2px 20px 20px;
  }

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

@media (min-width: 960px) {
  .page-faq .faq-layout {
    grid-template-columns: 296px minmax(0, 1fr);
    align-items: start;
  }

  .page-faq .faq-index {
    position: sticky;
    top: 20px;
    max-height: calc(100vh - 40px);
    overflow-y: auto;
  }

  .page-faq .faq-index__list {
    grid-template-columns: minmax(0, 1fr);
    padding: 0 10px 12px;
  }

  .page-faq .faq-facts {
    max-width: 640px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .qa[open] .qa__body {
    animation: none;
  }

  .page-faq .qa,
  .page-faq .qa summary,
  .page-faq .qa__num,
  .page-faq .faq-index__link,
  .page-faq .faq-index__summary {
    transition: none;
  }
}
<<<END>>>