.page-faq {
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-sans);
  border-top: 2px solid var(--line);
}

.page-faq .faq-wrap {
  width: min(var(--wrap), calc(100% - var(--gut) * 2));
  margin-inline: auto;
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  padding: clamp(24px, 4.6vw, 52px) 0 clamp(22px, 4vw, 40px);
  background:
    radial-gradient(120% 90% at 88% -12%, rgba(34, 225, 214, 0.14), transparent 62%),
    linear-gradient(180deg, var(--bg-2), var(--bg) 82%);
  border-bottom: 2px solid var(--line);
}

.page-faq .faq-hero__grid {
  display: grid;
  gap: clamp(22px, 4vw, 44px);
  margin-top: 18px;
}

.page-faq .faq-hero__art {
  margin: 0;
  position: relative;
  border: 2px solid var(--line);
  background: var(--bg-3);
  box-shadow: 10px 10px 0 rgba(4, 18, 31, 0.8);
  overflow: hidden;
}

.page-faq .faq-hero__art img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  aspect-ratio: 10 / 7;
  object-fit: cover;
}

.page-faq .faq-hero__art::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background: linear-gradient(158deg, transparent 42%, rgba(6, 17, 31, 0.84) 100%);
}

.page-faq .faq-hero__note {
  margin: 16px 0 0;
  padding-left: 12px;
  border-left: 3px solid var(--gold);
  font-family: var(--font-mono);
  font-size: 12.5px;
  line-height: 1.7;
  color: var(--text);
}

/* ---------- 指标条 ---------- */
.page-faq .faq-kpis {
  list-style: none;
  margin: clamp(22px, 3vw, 34px) 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 2px;
  background: var(--line);
  border: 2px solid var(--line);
}

.page-faq .faq-kpi {
  background: var(--bg-2);
  padding: 13px 15px 15px;
  min-width: 0;
}

.page-faq .faq-kpi__num {
  display: block;
  font-family: var(--font-mono);
  font-size: clamp(19px, 2.6vw, 26px);
  font-weight: 700;
  letter-spacing: 0.02em;
  color: var(--white);
}

.page-faq .faq-kpi__label {
  display: block;
  margin-top: 5px;
  font-size: 12.5px;
  line-height: 1.5;
  color: var(--text);
}

/* ---------- 主体分栏 ---------- */
.page-faq .faq-layout {
  display: grid;
  gap: clamp(24px, 4vw, 40px);
  padding: clamp(26px, 5vw, 56px) 0 0;
}

/* ---------- 左侧目录 ---------- */
.page-faq .faq-rail {
  border: 2px solid var(--line);
  background: var(--bg-2);
  padding: 16px 16px 18px;
}

.page-faq .faq-rail__title {
  margin: 0 0 14px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.2em;
  color: var(--cyan);
}

.page-faq .faq-rail__group + .faq-rail__group {
  margin-top: 14px;
  padding-top: 12px;
  border-top: 1px solid var(--line);
}

.page-faq .faq-rail__tag {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.16em;
  color: var(--gold);
}

.page-faq .faq-rail__list {
  list-style: none;
  margin: 8px 0 0;
  padding: 0;
  display: grid;
  gap: 2px;
}

.page-faq .faq-rail__link {
  display: flex;
  gap: 10px;
  align-items: baseline;
  padding: 9px 10px;
  border-left: 3px solid transparent;
  color: var(--text);
  text-decoration: none;
  font-size: 14px;
  line-height: 1.5;
  transition: background 0.18s ease, border-color 0.18s ease, color 0.18s ease;
}

.page-faq .faq-rail__link:hover {
  background: var(--bg-3);
  color: var(--white);
  border-left-color: var(--cyan);
}

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

.page-faq .faq-rail__no {
  flex: 0 0 auto;
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--cyan);
}

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

.page-faq .faq-sec {
  margin: 0 0 clamp(34px, 6vw, 58px);
  scroll-margin-top: 96px;
}

.page-faq .faq-sec:last-of-type {
  margin-bottom: 0;
}

.page-faq .faq-sec__head {
  position: relative;
  display: flex;
  align-items: baseline;
  gap: 12px;
  padding: 0 0 12px 14px;
  border-bottom: 2px solid var(--line);
}

.page-faq .faq-sec__head::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.3em;
  bottom: 0.5em;
  width: 4px;
  background: var(--cyan);
}

.page-faq .faq-sec--data .faq-sec__head::before {
  background: var(--gold);
}

.page-faq .faq-sec--access .faq-sec__head::before {
  background: var(--rose);
}

.page-faq .faq-sec__no {
  flex: 0 0 auto;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.18em;
  color: var(--cyan);
}

.page-faq .faq-sec--data .faq-sec__no {
  color: var(--gold);
}

.page-faq .faq-sec--access .faq-sec__no {
  color: var(--rose);
}

.page-faq .faq-sec__lead {
  margin: 14px 0 18px;
  font-size: 15px;
  line-height: 1.75;
  color: var(--text);
}

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

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

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

/* ---------- 折叠问答 ---------- */
.page-faq .faq-q {
  border: 2px solid var(--line);
  background: var(--bg-2);
  transition: background 0.18s ease, border-color 0.18s ease;
}

.page-faq .faq-q + .faq-q {
  margin-top: -2px;
}

.page-faq .faq-q[open] {
  background: var(--bg-3);
  border-color: var(--deep-cyan);
}

.page-faq .faq-q > summary {
  display: flex;
  gap: 12px;
  align-items: flex-start;
  padding: 14px 16px;
  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:hover {
  background: var(--bg-3);
}

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

.page-faq .faq-q__no {
  flex: 0 0 auto;
  min-width: 42px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--gold);
  padding-top: 3px;
}

.page-faq .faq-q__text {
  flex: 1 1 auto;
  min-width: 0;
  font-size: 15.5px;
  font-weight: 600;
  line-height: 1.55;
  color: var(--white);
}

.page-faq .faq-q__sign {
  flex: 0 0 auto;
  width: 18px;
  text-align: center;
  font-family: var(--font-mono);
  font-size: 18px;
  line-height: 1;
  color: var(--cyan);
  padding-top: 2px;
  transition: transform 0.2s ease;
}

.page-faq .faq-q[open] .faq-q__sign {
  transform: rotate(45deg);
}

.page-faq .faq-q__body {
  padding: 0 16px 16px;
  border-top: 2px solid var(--line);
}

.page-faq .faq-q__body p {
  margin: 12px 0 0;
  font-size: 15px;
  line-height: 1.8;
  color: var(--text);
}

.page-faq .faq-q__body p:first-child {
  margin-top: 14px;
}

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

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

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

/* ---------- 资料配图 ---------- */
.page-faq .faq-figure {
  margin: 0 0 20px;
  border: 2px solid var(--line);
  background: var(--bg-3);
  overflow: hidden;
}

.page-faq .faq-figure img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  aspect-ratio: 3 / 2;
  object-fit: cover;
}

.page-faq .faq-figure figcaption {
  padding: 10px 14px;
  border-top: 2px solid var(--line);
  background: var(--bg-2);
  font-family: var(--font-mono);
  font-size: 12px;
  line-height: 1.6;
  color: var(--text);
}

/* ---------- 底部引导 ---------- */
.page-faq .faq-ask {
  margin-top: clamp(30px, 5vw, 54px);
  padding: clamp(20px, 3.4vw, 34px);
  border: 2px solid var(--line);
  border-left: 4px solid var(--cyan);
  background: linear-gradient(118deg, var(--bg-2), var(--bg-3));
  box-shadow: 10px 10px 0 rgba(4, 18, 31, 0.7);
}

.page-faq .faq-ask .h-md {
  margin: 0;
  color: var(--white);
}

.page-faq .faq-ask p {
  margin: 12px 0 0;
  max-width: 62ch;
  font-size: 15px;
  line-height: 1.75;
  color: var(--text);
}

.page-faq .faq-ask__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 18px;
}

/* ---------- 平板及以上 ---------- */
@media (min-width: 700px) {
  .page-faq .faq-kpis {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .page-faq .faq-q__body {
    padding: 0 20px 18px 70px;
  }
}

@media (min-width: 900px) {
  .page-faq .faq-hero__grid {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
    align-items: end;
  }
}

@media (min-width: 1000px) {
  .page-faq .faq-layout {
    grid-template-columns: minmax(230px, 272px) minmax(0, 1fr);
    align-items: start;
  }

  .page-faq .faq-rail {
    position: sticky;
    top: 92px;
    max-height: calc(100vh - 120px);
    overflow-y: auto;
  }
}

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

  .page-faq .faq-q[open] .faq-q__sign {
    transform: none;
  }
}