.page-faq {
  --faq-soft: rgba(55, 242, 211, 0.08);
  --faq-panel: rgba(11, 32, 56, 0.55);
}

.page-faq .crumbs {
  padding-top: clamp(16px, 3vw, 26px);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.04em;
  color: var(--muted);
}

.page-faq .crumbs a {
  color: var(--muted);
  text-decoration: none;
  transition: color var(--dur) var(--ease);
}

.page-faq .crumbs a:hover {
  color: var(--aqua);
}

.page-faq .crumbs__sep {
  margin: 0 8px;
  color: var(--grid-line);
}

/* ---------- 首屏 ---------- */

.page-faq .faq-hero {
  display: grid;
  gap: clamp(26px, 4vw, 46px);
  padding: clamp(20px, 4vw, 38px) 0 clamp(30px, 5vw, 56px);
}

.page-faq .faq-hero__main h1 {
  margin: 14px 0 18px;
  font-size: clamp(27px, 4.4vw, 50px);
  font-weight: 300;
  line-height: 1.18;
  letter-spacing: -0.01em;
  color: var(--mist);
}

.page-faq .faq-hero__main .lede {
  max-width: 34em;
  margin: 0 0 24px;
  font-size: 15px;
  line-height: 1.85;
  color: var(--muted);
}

.page-faq .faq-hero__main .btn {
  margin-right: 18px;
}

.page-faq .link-arrow {
  display: inline-block;
  margin-top: 14px;
  font-size: 13px;
  color: var(--aqua);
}

.page-faq .faq-quick {
  padding: clamp(16px, 3vw, 26px);
  border: 1px solid var(--grid-line);
  border-radius: var(--r-lg);
  background:
    radial-gradient(120% 90% at 100% 0%, rgba(55, 242, 211, 0.12), transparent 62%),
    linear-gradient(165deg, rgba(30, 58, 87, 0.6), rgba(11, 32, 56, 0.9));
}

.page-faq .faq-quick__label {
  margin: 0 0 6px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--aqua);
}

/* ---------- 问答折叠 ---------- */

.page-faq .faq-q {
  margin-top: 10px;
  border: 1px solid var(--grid-line);
  border-radius: var(--r-md);
  background: var(--faq-panel);
  transition: border-color var(--dur) var(--ease), background-color var(--dur) var(--ease);
}

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

.page-faq .faq-q summary {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 15px 17px;
  cursor: pointer;
  list-style: none;
  font-size: 14.5px;
  font-weight: 500;
  line-height: 1.55;
  color: var(--mist);
}

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

.page-faq .faq-q summary::after {
  content: "+";
  margin-left: auto;
  flex: none;
  font-family: var(--font-mono);
  font-size: 17px;
  line-height: 1.2;
  color: var(--aqua);
}

.page-faq .faq-q[open] summary::after {
  content: "−";
}

.page-faq .faq-q:hover {
  border-color: rgba(55, 242, 211, 0.45);
}

.page-faq .faq-q[open] {
  border-color: var(--aqua);
  background: rgba(11, 32, 56, 0.78);
}

.page-faq .faq-q__body {
  padding: 0 17px 17px;
  font-size: 14px;
  line-height: 1.85;
  color: var(--muted);
}

.page-faq .faq-q__body p {
  margin: 0 0 12px;
}

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

.page-faq .faq-q__body a {
  color: var(--aqua);
  text-decoration: none;
  border-bottom: 1px solid rgba(55, 242, 211, 0.4);
}

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

.page-faq .faq-q__body code {
  font-family: var(--font-mono);
  font-size: 12.5px;
  color: var(--signal);
}

.page-faq .faq-q--lead summary {
  font-size: 14px;
  padding: 13px 0 13px 16px;
  border-left: 2px solid var(--grid-line);
}

.page-faq .faq-q--lead {
  border: none;
  border-radius: 0;
  background: transparent;
  margin-top: 4px;
  border-top: 1px solid var(--grid-line);
}

.page-faq .faq-q--lead:first-of-type {
  margin-top: 12px;
  border-top: none;
}

.page-faq .faq-q--lead[open] {
  background: transparent;
}

.page-faq .faq-q--lead[open] summary {
  border-left-color: var(--aqua);
  color: var(--aqua);
}

.page-faq .faq-q--lead .faq-q__body {
  padding-left: 16px;
}

/* ---------- 编号示例块 ---------- */

.page-faq .faq-code {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  padding: 14px 16px;
  border: 1px dashed var(--grid-line);
  border-radius: var(--r-sm);
  background: rgba(6, 20, 36, 0.7);
}

.page-faq .faq-code__label {
  width: 100%;
  margin: 0;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  color: var(--muted);
}

.page-faq .faq-code__raw {
  font-family: var(--font-mono);
  font-size: 15px;
  letter-spacing: 0.06em;
  color: var(--signal);
}

.page-faq .faq-code .btn {
  margin-left: auto;
}

/* ---------- 索引 + 正文 ---------- */

.page-faq .faq-split {
  padding-bottom: clamp(30px, 5vw, 56px);
}

.page-faq .faq-index {
  margin-bottom: clamp(8px, 2vw, 20px);
  padding: 12px 0;
  border-top: 1px solid var(--grid-line);
  border-bottom: 1px solid var(--grid-line);
}

.page-faq .faq-index__title {
  margin: 0 0 10px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.12em;
  color: var(--muted);
}

.page-faq .faq-index ol {
  display: flex;
  gap: 6px;
  margin: 0;
  padding: 0;
  list-style: none;
  overflow-x: auto;
  scrollbar-width: none;
}

.page-faq .faq-index ol::-webkit-scrollbar {
  display: none;
}

.page-faq .faq-index a {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 13px;
  border: 1px solid transparent;
  border-radius: 999px;
  white-space: nowrap;
  font-size: 13px;
  color: var(--muted);
  text-decoration: none;
  transition: color var(--dur) var(--ease), border-color var(--dur) var(--ease), background-color var(--dur) var(--ease);
}

.page-faq .faq-index a i {
  font-family: var(--font-mono);
  font-style: normal;
  font-size: 11px;
  color: var(--aqua);
}

.page-faq .faq-index a:hover,
.page-faq .faq-index a:focus-visible {
  color: var(--mist);
  border-color: var(--grid-line);
  background: var(--faq-soft);
}

.page-faq .faq-body {
  min-width: 0;
}

.page-faq .faq-sec {
  padding: clamp(24px, 4vw, 42px) 0;
  border-top: 1px solid var(--grid-line);
  scroll-margin-top: 20px;
}

.page-faq .faq-sec:first-child {
  border-top: none;
  padding-top: 0;
}

.page-faq .faq-sec__head {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  margin-bottom: 18px;
}

.page-faq .faq-sec__no {
  flex: none;
  font-family: var(--font-mono);
  font-size: clamp(28px, 5.4vw, 50px);
  font-weight: 700;
  line-height: 0.95;
  color: var(--signal);
  opacity: 0.82;
}

.page-faq .faq-sec__title {
  margin: 0 0 6px;
  font-size: clamp(19px, 2.6vw, 26px);
  font-weight: 500;
  letter-spacing: -0.005em;
  color: var(--mist);
}

.page-faq .faq-sec__lede {
  margin: 0;
  max-width: 32em;
  font-size: 13.5px;
  line-height: 1.75;
  color: var(--muted);
}

.page-faq .faq-figure {
  margin: 20px 0 0;
  padding: 0;
  overflow: hidden;
}

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

.page-faq .faq-figure .media-frame__caption {
  padding: 12px 16px;
  font-size: 12px;
  line-height: 1.7;
  color: var(--muted);
}

/* ---------- 收束区 ---------- */

.page-faq .faq-sec--end {
  border-top: 1px solid var(--grid-line);
}

.page-faq .faq-checklist {
  gap: 22px;
}

.page-faq .faq-checklist__list {
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-faq .faq-checklist__list li {
  display: flex;
  gap: 12px;
  align-items: baseline;
  padding: 12px 0;
  border-bottom: 1px solid var(--grid-line);
  font-size: 14px;
  line-height: 1.7;
  color: var(--mist);
}

.page-faq .faq-checklist__list li span {
  flex: none;
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--aqua);
  letter-spacing: 0.06em;
}

.page-faq .faq-reach {
  padding: clamp(18px, 3vw, 26px);
  border-radius: var(--r-lg);
  background:
    radial-gradient(110% 100% at 0% 0%, rgba(255, 107, 53, 0.14), transparent 58%),
    linear-gradient(160deg, rgba(30, 58, 87, 0.55), rgba(11, 32, 56, 0.9));
}

.page-faq .faq-reach__title {
  margin: 0 0 14px;
  font-size: 14px;
  font-weight: 500;
  letter-spacing: 0.04em;
  color: var(--mist);
}

.page-faq .faq-reach__line {
  margin: 0 0 8px;
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--muted);
  word-break: break-all;
}

.page-faq .faq-reach__line a {
  color: var(--aqua);
  text-decoration: none;
  border-bottom: 1px solid rgba(55, 242, 211, 0.35);
}

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

.page-faq .faq-reach__note {
  margin: 0 0 18px;
  font-size: 12.5px;
  line-height: 1.75;
  color: var(--muted);
}

/* ---------- 响应式 ---------- */

@media (max-width: 599px) {
  .page-faq .faq-hero__main .btn {
    display: inline-block;
    margin: 0 0 6px;
  }

  .page-faq .faq-code .btn {
    margin-left: 0;
  }

  .page-faq .faq-q summary {
    font-size: 14px;
  }
}

@media (min-width: 900px) {
  .page-faq .faq-hero {
    grid-template-columns: 1.15fr 0.85fr;
    align-items: start;
  }

  .page-faq .faq-split {
    display: grid;
    grid-template-columns: 218px minmax(0, 1fr);
    gap: clamp(28px, 4vw, 56px);
    align-items: start;
  }

  .page-faq .faq-index {
    position: sticky;
    top: 24px;
    margin-bottom: 0;
    padding: 0;
    border-top: none;
    border-bottom: none;
  }

  .page-faq .faq-index__title {
    padding-left: 14px;
    border-left: 1px solid var(--grid-line);
  }

  .page-faq .faq-index ol {
    flex-direction: column;
    gap: 2px;
    overflow: visible;
    border-left: 1px solid var(--grid-line);
  }

  .page-faq .faq-index a {
    border-radius: 0 var(--r-sm) var(--r-sm) 0;
    border-left: 2px solid transparent;
    margin-left: -1px;
    white-space: normal;
    padding: 10px 14px;
  }

  .page-faq .faq-index a:hover,
  .page-faq .faq-index a:focus-visible {
    border-left-color: var(--aqua);
    border-top-color: transparent;
    border-right-color: transparent;
    border-bottom-color: transparent;
  }
}
<<<END>>>