.page-faq {
  --faq-line: 1px solid var(--c-grid);
  --faq-glow: rgba(184, 242, 74, 0.07);
  --faq-glow-soft: rgba(184, 242, 74, 0.04);
  padding-bottom: 10px;
}

.page-faq .filter-item[hidden] {
  display: none !important;
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  display: grid;
  gap: 24px;
  padding: 24px 0 30px;
  border-bottom: var(--faq-line);
}

.page-faq .faq-hero h1 {
  font-family: var(--f-display);
  font-size: clamp(36px, 8vw, var(--t-2xl));
  font-weight: 800;
  line-height: 1.06;
  letter-spacing: -0.02em;
  color: var(--c-mist);
  margin: 12px 0 0;
  max-width: 16ch;
}

.page-faq .faq-lede {
  margin: 16px 0 0;
  max-width: 38em;
  font-size: var(--t-base);
  line-height: 1.75;
  color: var(--c-cool);
}

.page-faq .faq-hero-meta {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 8px 22px;
  margin: 20px 0 0;
  padding: 14px 0 0;
  border-top: var(--faq-line);
  font-size: var(--t-xs);
  letter-spacing: 0.06em;
  color: var(--c-cool);
}

.page-faq .faq-hero-meta li {
  display: inline-flex;
  align-items: baseline;
  gap: 6px;
}

.page-faq .faq-meta-num {
  font-family: var(--f-mono);
  font-size: var(--t-md);
  font-weight: 600;
  letter-spacing: 0.02em;
  color: var(--c-lime);
}

.page-faq .faq-hero-figure {
  position: relative;
  margin: 0;
  min-height: 168px;
  border: var(--faq-line);
  overflow: hidden;
  background: var(--c-tactic);
}

.page-faq .faq-hero-figure::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(120deg, rgba(6, 20, 32, 0.82) 0%, rgba(6, 20, 32, 0.12) 68%);
  pointer-events: none;
}

.page-faq .faq-hero-figure img {
  display: block;
  width: 100%;
  height: 100%;
  min-height: 168px;
  object-fit: cover;
  max-width: 100%;
}

/* ---------- 双栏主体 ---------- */
.page-faq .faq-board {
  display: grid;
  gap: 26px;
  padding: 30px 0 26px;
}

.page-faq .faq-aside {
  border: var(--faq-line);
  background: var(--c-tactic);
  padding: 18px 16px 20px;
}

.page-faq .faq-aside-label {
  display: flex;
  align-items: center;
  gap: 8px;
  margin: 0 0 10px;
  font-size: 11px;
  letter-spacing: 0.18em;
  color: var(--c-cool);
}

.page-faq .faq-aside-label::before {
  content: "";
  width: 18px;
  height: 1px;
  background: var(--c-lime);
}

.page-faq .faq-anchors {
  display: grid;
  gap: 2px;
  margin: 0 0 24px;
}

.page-faq .faq-anchor {
  display: flex;
  align-items: baseline;
  gap: 12px;
  min-height: 44px;
  padding: 10px 10px;
  border-left: 2px solid var(--c-grid);
  color: var(--c-cool);
  font-size: var(--t-sm);
  line-height: 1.5;
  text-decoration: none;
  transition: color var(--dur) var(--ease), border-color var(--dur) var(--ease), background var(--dur) var(--ease);
}

.page-faq .faq-anchor:hover,
.page-faq .faq-anchor:focus-visible {
  color: var(--c-mist);
  border-left-color: var(--c-lime);
  background: var(--faq-glow-soft);
}

.page-faq .faq-anchor-num {
  font-family: var(--f-mono);
  font-size: var(--t-xs);
  font-weight: 600;
  letter-spacing: 0.08em;
  color: var(--c-lime);
}

.page-faq .faq-filter-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

/* ---------- 问答组 ---------- */
.page-faq .faq-main {
  min-width: 0;
}

.page-faq .faq-group {
  scroll-margin-top: calc(var(--bar-h) + 20px);
}

.page-faq .faq-group + .faq-group {
  margin-top: 30px;
}

.page-faq .faq-group-head {
  display: flex;
  align-items: baseline;
  gap: 12px;
  padding: 0 0 12px;
  border-bottom: var(--faq-line);
}

.page-faq .faq-group-num {
  font-family: var(--f-mono);
  font-size: var(--t-xs);
  font-weight: 600;
  letter-spacing: 0.18em;
  color: var(--c-lime);
}

.page-faq .faq-group-title {
  margin: 0;
  font-family: var(--f-display);
  font-size: clamp(21px, 3.4vw, var(--t-md));
  font-weight: 800;
  letter-spacing: 0.01em;
  line-height: 1.24;
  color: var(--c-mist);
}

.page-faq .faq-item {
  border-bottom: var(--faq-line);
}

.page-faq .faq-item > summary {
  position: relative;
  list-style: none;
  cursor: pointer;
  padding: 17px 34px 17px 18px;
  font-size: var(--t-base);
  font-weight: 500;
  line-height: 1.6;
  color: var(--c-mist);
  transition: color var(--dur) var(--ease), background var(--dur) var(--ease);
}

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

.page-faq .faq-item > summary::before {
  content: "";
  position: absolute;
  left: 0;
  top: 14px;
  bottom: 14px;
  width: 2px;
  background: transparent;
  transition: background var(--dur) var(--ease), top var(--dur) var(--ease), bottom var(--dur) var(--ease);
}

.page-faq .faq-item > summary::after {
  content: "";
  position: absolute;
  right: 10px;
  top: 50%;
  width: 9px;
  height: 9px;
  border-right: 1px solid var(--c-cool);
  border-bottom: 1px solid var(--c-cool);
  transform: translateY(-72%) rotate(45deg);
  transition: transform var(--dur) var(--ease), border-color var(--dur) var(--ease);
}

.page-faq .faq-item > summary:hover {
  background: var(--faq-glow-soft);
}

.page-faq .faq-item > summary:focus-visible {
  outline: 1px solid var(--c-lime-deep);
  outline-offset: -1px;
}

.page-faq .faq-item[open] > summary::before {
  top: 10px;
  bottom: 10px;
  background: var(--c-lime);
}

.page-faq .faq-item[open] > summary::after {
  transform: translateY(-30%) rotate(-135deg);
  border-color: var(--c-lime);
}

.page-faq .faq-item[open] > summary {
  color: var(--c-lime);
}

.page-faq .faq-answer {
  padding: 0 18px 22px 18px;
  max-width: 60ch;
  font-size: 16px;
  line-height: 1.78;
  color: var(--c-cool);
}

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

/* ---------- 窄幅入口条 ---------- */
.page-faq .faq-strip {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  min-height: 44px;
  margin: 12px 0 0;
  padding: 11px 16px;
  border: var(--faq-line);
  background: linear-gradient(90deg, var(--faq-glow) 0%, rgba(184, 242, 74, 0) 68%);
  color: var(--c-mist);
  font-size: var(--t-sm);
  letter-spacing: 0.02em;
  text-decoration: none;
  transition: border-color var(--dur) var(--ease), background var(--dur) var(--ease), color var(--dur) var(--ease);
}

.page-faq .faq-strip:hover,
.page-faq .faq-strip:focus-visible {
  border-color: var(--c-lime-deep);
  background: linear-gradient(90deg, rgba(184, 242, 74, 0.14) 0%, rgba(184, 242, 74, 0.01) 72%);
  color: var(--c-lime);
}

.page-faq .faq-strip-arrow {
  font-family: var(--f-mono);
  color: var(--c-lime);
  transition: transform var(--dur) var(--ease);
}

.page-faq .faq-strip:hover .faq-strip-arrow,
.page-faq .faq-strip:focus-visible .faq-strip-arrow {
  transform: translateX(6px);
}

.page-faq .filter-empty {
  margin: 22px 0 0;
  padding: 16px;
  border: 1px dashed var(--c-grid);
  color: var(--c-cool);
  font-size: var(--t-sm);
  line-height: 1.7;
}

/* ---------- 底部联系区 ---------- */
.page-faq .faq-cta {
  position: relative;
  margin: 34px 0 44px;
  border: var(--faq-line);
  overflow: hidden;
  background: var(--c-tactic);
}

.page-faq .faq-cta-media {
  position: absolute;
  inset: 0;
  z-index: 0;
}

.page-faq .faq-cta-media img {
  display: block;
  width: 100%;
  height: 100%;
  max-width: 100%;
  object-fit: cover;
  opacity: 0.3;
}

.page-faq .faq-cta-body {
  position: relative;
  z-index: 1;
  padding: 26px 20px 28px;
  background: linear-gradient(180deg, rgba(11, 32, 48, 0.55) 0%, rgba(11, 32, 48, 0.88) 100%);
}

.page-faq .faq-cta-body h2 {
  margin: 12px 0 0;
  font-family: var(--f-display);
  font-size: clamp(24px, 4.6vw, var(--t-lg));
  font-weight: 800;
  line-height: 1.16;
  letter-spacing: -0.01em;
  color: var(--c-mist);
}

.page-faq .faq-cta-body p {
  margin: 14px 0 22px;
  max-width: 44em;
  font-size: 16px;
  line-height: 1.78;
  color: var(--c-cool);
}

/* ---------- 断点 ---------- */
@media (min-width: 640px) {
  .page-faq .faq-hero-figure {
    min-height: 240px;
  }
  .page-faq .faq-hero-figure img {
    min-height: 240px;
  }
  .page-faq .faq-cta-body {
    padding: 34px 32px 36px;
  }
}

@media (min-width: 900px) {
  .page-faq .faq-hero {
    grid-template-columns: 1.15fr 0.85fr;
    align-items: end;
    gap: 44px;
    padding: 34px 0 40px;
  }
  .page-faq .faq-hero-figure {
    min-height: 300px;
    align-self: stretch;
  }
  .page-faq .faq-hero-figure img {
    min-height: 300px;
  }
  .page-faq .faq-hero h1 {
    margin-top: 14px;
  }

  .page-faq .faq-board {
    grid-template-columns: minmax(0, 4fr) minmax(0, 8fr);
    gap: 0;
    padding: 40px 0 10px;
  }

  .page-faq .faq-aside {
    background: transparent;
    border: 0;
    border-right: var(--faq-line);
    padding: 4px 30px 0 0;
  }

  .page-faq .faq-main {
    padding-left: 34px;
  }

  .page-faq .faq-item > summary {
    padding: 19px 34px 19px 20px;
  }

  .page-faq .faq-answer {
    padding: 0 20px 26px 20px;
    max-width: 56ch;
  }

  .page-faq .faq-strip {
    margin-top: 14px;
  }

  .page-faq .faq-cta {
    margin: 42px 0 56px;
  }

  .page-faq .faq-cta-body {
    padding: 44px 48px 46px;
    max-width: 720px;
  }
}

@media (min-width: 1080px) {
  .page-faq .faq-aside {
    position: sticky;
    top: calc(var(--bar-h) + 24px);
    align-self: start;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-anchor,
  .page-faq .faq-item > summary,
  .page-faq .faq-item > summary::before,
  .page-faq .faq-item > summary::after,
  .page-faq .faq-strip,
  .page-faq .faq-strip-arrow {
    transition: none;
  }
  .page-faq .faq-strip:hover .faq-strip-arrow {
    transform: none;
  }
}
<<<END>>>