.page-faq {
  --faq-glass: rgba(44, 74, 143, 0.16);
  --faq-glass-line: rgba(44, 74, 143, 0.4);
  --faq-gap: clamp(20px, 3.4vw, 40px);
  display: block;
  padding-bottom: clamp(48px, 8vw, 96px);
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  padding: clamp(28px, 5vw, 64px) 0 clamp(32px, 5vw, 60px);
  position: relative;
  overflow: hidden;
}

.page-faq .faq-hero::before {
  content: "";
  position: absolute;
  top: -18%;
  right: -12%;
  width: min(62vw, 720px);
  aspect-ratio: 1;
  background: radial-gradient(circle at center, rgba(122, 92, 240, 0.18), transparent 62%);
  pointer-events: none;
  z-index: -1;
}

.page-faq .faq-hero-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(28px, 5vw, 56px);
  align-items: center;
}

@media (min-width: 920px) {
  .page-faq .faq-hero-grid {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1.18fr);
    gap: clamp(36px, 5vw, 72px);
  }
}

.page-faq .faq-hero-copy {
  min-width: 0;
}

.page-faq .faq-hero-copy h1 {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(32px, 5.4vw, 66px);
  line-height: 1.08;
  letter-spacing: -0.02em;
  color: var(--chalk);
  margin: 8px 0 20px;
}

.page-faq .faq-hero-copy .lede {
  color: var(--mist);
  font-size: clamp(16px, 1.6vw, 18px);
  line-height: 1.8;
  max-width: 60ch;
  margin: 0 0 26px;
}

.page-faq .faq-hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 20px;
}

.page-faq .faq-hero-actions .btn {
  min-width: 148px;
  text-align: center;
}

.page-faq .faq-hero-meta {
  margin: 0;
  color: var(--dim);
  font-size: 13.5px;
  letter-spacing: 0.02em;
  padding-left: 12px;
  border-left: 2px solid var(--hair);
}

.page-faq .faq-hero-meta .mono {
  color: var(--gold);
  font-weight: 700;
}

.page-faq .faq-hero-figure {
  margin: 0;
  min-width: 0;
}

.page-faq .faq-hero-figure .media-frame {
  position: relative;
  border: 1px solid var(--hair);
  border-radius: 14px;
  overflow: hidden;
  background: linear-gradient(150deg, rgba(14, 31, 69, 0.9), rgba(3, 6, 15, 0.95));
}

.page-faq .faq-hero-figure .media-frame::after {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at 70% 30%, rgba(228, 169, 60, 0.14), transparent 58%);
  pointer-events: none;
}

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

.page-faq .faq-hero-figure .media-caption {
  margin-top: 12px;
  color: var(--dim);
  font-size: 13px;
  line-height: 1.65;
}

/* ---------- 主体：窄索引 + 宽问答流 ---------- */
.page-faq .faq-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(24px, 4vw, 48px);
  align-items: start;
}

@media (min-width: 1000px) {
  .page-faq .faq-layout {
    grid-template-columns: minmax(180px, 216px) minmax(0, 1fr);
    gap: clamp(32px, 5vw, 76px);
  }
  .page-faq .faq-aside {
    position: sticky;
    top: calc(var(--bar-h, 68px) + 26px);
  }
}

.page-faq .faq-aside-label {
  margin: 0 0 12px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--signal-dim, var(--dim));
}

.page-faq .faq-index-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 6px;
}

@media (min-width: 1000px) {
  .page-faq .faq-index-list {
    grid-template-columns: 1fr;
    gap: 2px;
  }
}

.page-faq .faq-index-link {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  align-items: baseline;
  gap: 10px;
  padding: 10px 12px;
  border-left: 2px solid transparent;
  border-radius: 0 8px 8px 0;
  color: var(--dim);
  text-decoration: none;
  transition: color var(--t) var(--ease), border-color var(--t) var(--ease),
    background-color var(--t) var(--ease);
}

.page-faq .faq-index-link .idx-range {
  font-size: 12.5px;
  letter-spacing: 0.04em;
  color: var(--signal-dim, var(--dim));
  transition: color var(--t) var(--ease);
}

.page-faq .faq-index-link .idx-name {
  font-size: 14.5px;
  line-height: 1.5;
}

.page-faq .faq-index-link:hover,
.page-faq .faq-index-link:focus-visible {
  color: var(--chalk);
  border-left-color: var(--gold);
  background: linear-gradient(90deg, rgba(228, 169, 60, 0.14), rgba(228, 169, 60, 0));
}

.page-faq .faq-index-link:hover .idx-range,
.page-faq .faq-index-link:focus-visible .idx-range {
  color: var(--gold);
}

/* ---------- 分组 ---------- */
.page-faq .faq-stream {
  min-width: 0;
}

.page-faq .faq-group {
  margin: 0 0 clamp(40px, 6vw, 76px);
  scroll-margin-top: calc(var(--bar-h, 68px) + 24px);
}

.page-faq .group-head {
  position: relative;
  padding-left: 20px;
  margin-bottom: clamp(10px, 1.8vw, 18px);
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 4px 16px;
}

.page-faq .group-head::before {
  content: "";
  position: absolute;
  left: 0;
  top: 5px;
  width: 3px;
  height: calc(100% - 10px);
  border-radius: 2px;
  background: linear-gradient(180deg, var(--gold), rgba(228, 169, 60, 0));
}

.page-faq .group-mark {
  flex: none;
  font-size: clamp(28px, 3.6vw, 46px);
  font-weight: 700;
  line-height: 1;
  letter-spacing: 0.01em;
  color: var(--gold);
}

.page-faq .group-title {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(22px, 3.1vw, 36px);
  line-height: 1.16;
  letter-spacing: -0.01em;
  color: var(--chalk);
}

.page-faq .group-note {
  flex: 1 1 100%;
  margin: 0;
  color: var(--dim);
  font-size: 14px;
  line-height: 1.6;
  padding-left: calc(clamp(28px, 3.6vw, 46px) + 16px);
}

@media (max-width: 599px) {
  .page-faq .group-note {
    padding-left: 0;
  }
}

.page-faq .group-foot {
  margin: clamp(14px, 2vw, 22px) 0 0;
  padding-top: 12px;
  border-top: 1px dashed rgba(44, 74, 143, 0.55);
  color: var(--dim);
  font-size: 13.5px;
  line-height: 1.6;
  letter-spacing: 0.02em;
}

/* ---------- 问答条目 ---------- */
.page-faq .qa-item {
  border-bottom: 1px solid rgba(44, 74, 143, 0.45);
  background: linear-gradient(180deg, rgba(22, 41, 92, 0.22), rgba(14, 31, 69, 0));
  transition: border-color var(--t) var(--ease), background-color var(--t) var(--ease);
}

.page-faq .qa-item:hover {
  border-bottom-color: rgba(228, 169, 60, 0.55);
}

.page-faq .qa-q {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  align-items: start;
  gap: clamp(12px, 2vw, 22px);
  padding: clamp(15px, 2.1vw, 22px) clamp(4px, 1.4vw, 14px);
  cursor: pointer;
  list-style: none;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: clamp(16px, 1.65vw, 19.5px);
  line-height: 1.5;
  color: var(--chalk);
  transition: color var(--t) var(--ease);
}

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

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

.page-faq .qa-q:focus-visible {
  outline: 2px solid var(--gold);
  outline-offset: 2px;
  border-radius: 6px;
}

.page-faq .qa-num {
  font-size: clamp(17px, 1.9vw, 25px);
  font-weight: 700;
  line-height: 1.25;
  color: var(--dim);
  transition: color var(--t) var(--ease);
}

.page-faq .qa-item:hover .qa-num,
.page-faq .qa-item[open] > .qa-q .qa-num {
  color: var(--gold);
}

.page-faq .qa-text {
  position: relative;
  min-width: 0;
}

.page-faq .qa-text::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -3px;
  width: 0;
  height: 1px;
  background: var(--gold);
  transition: width var(--t) var(--ease);
}

.page-faq .qa-item:hover .qa-text::after,
.page-faq .qa-q:focus-visible .qa-text::after {
  width: 100%;
}

.page-faq .qa-toggle {
  position: relative;
  flex: none;
  width: 15px;
  height: 15px;
  margin-top: 6px;
}

.page-faq .qa-toggle::before,
.page-faq .qa-toggle::after {
  content: "";
  position: absolute;
  background: var(--dim);
  transition: transform var(--t) var(--ease), background-color var(--t) var(--ease);
}

.page-faq .qa-toggle::before {
  left: 0;
  top: 6px;
  width: 15px;
  height: 2px;
}

.page-faq .qa-toggle::after {
  left: 6px;
  top: 0;
  width: 2px;
  height: 15px;
}

.page-faq .qa-item[open] .qa-toggle::before {
  background: var(--gold);
}

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

/* 答案区：玻璃层压在实色问题行之上 */
.page-faq .qa-a {
  margin: 0 clamp(4px, 1.4vw, 14px) clamp(16px, 2.2vw, 24px)
    calc(clamp(4px, 1.4vw, 14px) + clamp(30px, 3.6vw, 52px));
  padding: clamp(14px, 1.9vw, 20px) clamp(16px, 2.2vw, 24px);
  border: 1px solid var(--faq-glass-line);
  border-left: 2px solid rgba(228, 169, 60, 0.6);
  border-radius: 0 12px 12px 0;
  background: var(--faq-glass);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
}

.page-faq .qa-a p {
  margin: 0;
  color: var(--mist);
  font-size: clamp(15.5px, 1.55vw, 17px);
  line-height: 1.85;
  max-width: 68ch;
}

.page-faq .hl {
  display: inline-block;
  color: var(--gold);
  font-weight: 700;
  font-size: 1.06em;
  transform-origin: center bottom;
  transition: transform var(--t) var(--ease), color var(--t) var(--ease);
}

.page-faq .qa-item:hover .hl,
.page-faq .qa-item:focus-within .hl {
  transform: scale(1.06);
  color: var(--gold-soft);
}

/* ---------- 核验示意图 ---------- */
.page-faq .faq-figure {
  margin: 0 0 clamp(20px, 3vw, 32px);
}

.page-faq .faq-figure .media-frame {
  position: relative;
  border: 1px solid var(--hair);
  border-radius: 14px;
  overflow: hidden;
  background: linear-gradient(120deg, rgba(14, 31, 69, 0.92), rgba(3, 6, 15, 0.96));
}

.page-faq .faq-figure .media-frame::after {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at 88% 50%, rgba(55, 199, 174, 0.16), transparent 55%);
  pointer-events: none;
}

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

.page-faq .faq-figure .media-caption {
  margin-top: 10px;
  color: var(--dim);
  font-size: 13px;
  line-height: 1.6;
}

/* ---------- 收束块 ---------- */
.page-faq .faq-cta {
  scroll-margin-top: calc(var(--bar-h, 68px) + 24px);
}

.page-faq .faq-cta-inner {
  position: relative;
  overflow: hidden;
  padding: clamp(26px, 4vw, 48px) clamp(20px, 3.4vw, 52px);
  border: 1px solid var(--faq-glass-line);
  border-radius: 18px;
  background: linear-gradient(135deg, rgba(22, 41, 92, 0.85), rgba(3, 6, 15, 0.9));
}

.page-faq .faq-cta-inner::before {
  content: "";
  position: absolute;
  top: -40%;
  right: -10%;
  width: min(46vw, 460px);
  aspect-ratio: 1;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(228, 169, 60, 0.2), transparent 62%);
  pointer-events: none;
}

.page-faq .faq-cta-title {
  position: relative;
  margin: 8px 0 14px;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(23px, 3.2vw, 38px);
  line-height: 1.16;
  letter-spacing: -0.01em;
  color: var(--chalk);
}

.page-faq .faq-cta-text {
  position: relative;
  margin: 0 0 22px;
  max-width: 62ch;
  color: var(--mist);
  font-size: clamp(15.5px, 1.55vw, 17px);
  line-height: 1.8;
}

.page-faq .faq-cta-actions {
  position: relative;
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 18px;
}

.page-faq .faq-cta-actions .btn {
  min-width: 156px;
  text-align: center;
}

.page-faq .faq-cta-meta {
  position: relative;
  margin: 0;
  color: var(--dim);
  font-size: 13.5px;
  line-height: 1.7;
}

.page-faq .faq-cta-meta a {
  color: var(--mist);
  text-decoration: none;
  border-bottom: 1px solid rgba(228, 169, 60, 0.45);
  transition: color var(--t) var(--ease), border-color var(--t) var(--ease);
}

.page-faq .faq-cta-meta a:hover,
.page-faq .faq-cta-meta a:focus-visible {
  color: var(--gold);
  border-bottom-color: var(--gold);
}

@media (max-width: 999px) {
  .page-faq .faq-aside-label {
    margin-bottom: 8px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .qa-item,
  .page-faq .qa-num,
  .page-faq .qa-text::after,
  .page-faq .qa-toggle::before,
  .page-faq .qa-toggle::after,
  .page-faq .hl,
  .page-faq .faq-index-link {
    transition: none;
  }
  .page-faq .qa-item:hover .hl,
  .page-faq .qa-item:focus-within .hl {
    transform: none;
  }
}
<<<END>>>

.page-faq {
  --signal-dim: currentColor;
}