.page-faq {
  --faq-card: rgba(18, 35, 63, .62);
  --faq-card-open: rgba(18, 35, 63, .96);
  --faq-dash: rgba(147, 166, 192, .18);
  display: block;
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  padding: 22px 0 56px;
  border-bottom: 1px solid var(--line);
  background:
    radial-gradient(85% 120% at 94% -20%, rgba(53, 224, 214, .18), transparent 62%),
    radial-gradient(70% 110% at -12% 6%, rgba(200, 164, 92, .13), transparent 58%),
    linear-gradient(180deg, var(--ink-3) 0%, var(--ink) 68%);
}

.page-faq .faq-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(to right, rgba(147, 166, 192, .09) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(147, 166, 192, .09) 1px, transparent 1px);
  background-size: 64px 64px;
  -webkit-mask-image: linear-gradient(180deg, rgba(0, 0, 0, .9), transparent 86%);
  mask-image: linear-gradient(180deg, rgba(0, 0, 0, .9), transparent 86%);
  pointer-events: none;
}

.page-faq .faq-hero > .wrap {
  position: relative;
  z-index: 1;
}

.page-faq .crumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  margin-bottom: 22px;
  font-size: 13px;
  color: var(--muted);
}

.page-faq .crumb a {
  color: var(--muted);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color .2s ease, border-color .2s ease;
}

.page-faq .crumb a:hover {
  color: var(--gold-hi);
  border-bottom-color: var(--line-strong);
}

.page-faq .crumb__sep {
  color: var(--line-strong);
}

.page-faq .faq-hero__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 30px;
}

.page-faq .faq-hero__lead h1 {
  position: relative;
  margin: 14px 0 0;
  padding-bottom: 18px;
  font-family: var(--font-cond);
  font-size: clamp(29px, 7.2vw, 52px);
  font-weight: 700;
  line-height: 1.14;
  letter-spacing: .035em;
  color: var(--paper);
}

.page-faq .faq-hero__lead h1::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 104px;
  height: 3px;
  background: linear-gradient(90deg, var(--gold), var(--gold-hi) 55%, transparent);
}

.page-faq .faq-hero__lead .lede {
  margin: 22px 0 0;
  max-width: 58ch;
  font-size: 16.5px;
  line-height: 1.8;
  color: rgba(233, 241, 247, .88);
}

.page-faq .faq-hero__chips {
  list-style: none;
  margin: 26px 0 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.page-faq .faq-hero__chips li {
  padding: 6px 12px;
  border: 1px solid var(--line);
  border-left: 3px solid var(--gold);
  font-size: 13px;
  line-height: 1.5;
  letter-spacing: .02em;
  color: var(--muted);
}

.page-faq .faq-hero__side .panel {
  border-radius: 0;
}

.page-faq .faq-hero__side .panel__head {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
}

.page-faq .faq-hero__side .panel__body {
  padding-top: 4px;
}

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

.page-faq .faq-facts li {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 14px;
  padding: 11px 0;
  border-bottom: 1px dashed var(--faq-dash);
  font-size: 14px;
  line-height: 1.6;
}

.page-faq .faq-facts li:last-child {
  border-bottom: 0;
}

.page-faq .faq-facts__k {
  color: var(--muted);
  flex: 0 0 auto;
}

.page-faq .faq-facts__v {
  color: var(--gold-hi);
  text-align: right;
  letter-spacing: .04em;
}

/* ---------- 分类入口 ---------- */
.page-faq .faq-index {
  padding-bottom: 8px;
}

.page-faq .faq-index__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 24px;
  margin-top: 26px;
}

.page-faq .faq-index__cats {
  display: grid;
  grid-template-columns: 1fr;
  gap: 12px;
}

.page-faq .faq-cat {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding: 18px 18px 16px 21px;
  border: 1px solid var(--line);
  background: linear-gradient(160deg, rgba(18, 35, 63, .9), rgba(10, 23, 48, .92));
  text-decoration: none;
  color: var(--paper);
  transition: transform .2s ease, border-color .2s ease, background .2s ease;
}

.page-faq .faq-cat::before {
  content: "";
  position: absolute;
  top: 0;
  bottom: 0;
  left: 0;
  width: 3px;
  background: var(--gold);
  transition: background .2s ease;
}

.page-faq .faq-cat:hover,
.page-faq .faq-cat:focus-visible {
  transform: translateY(-3px);
  border-color: var(--line-strong);
  background: linear-gradient(160deg, rgba(27, 58, 99, .95), rgba(10, 23, 48, .95));
}

.page-faq .faq-cat:hover::before,
.page-faq .faq-cat:focus-visible::before {
  background: var(--cyan);
}

.page-faq .faq-cat__num {
  font-size: 12px;
  letter-spacing: .16em;
  color: var(--gold);
}

.page-faq .faq-cat__name {
  font-family: var(--font-cond);
  font-size: 19px;
  font-weight: 700;
  letter-spacing: .03em;
  line-height: 1.3;
}

.page-faq .faq-cat__desc {
  font-size: 13.5px;
  line-height: 1.65;
  color: var(--muted);
}

.page-faq .faq-cat__meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  margin-top: 4px;
  padding-top: 10px;
  border-top: 1px solid var(--faq-dash);
  font-size: 12px;
  letter-spacing: .05em;
}

.page-faq .faq-cat__meta .mono {
  color: var(--cyan);
}

.page-faq .faq-cat__upd {
  color: var(--muted);
}

/* ---------- 图片容器 ---------- */
.page-faq .fig-frame {
  position: relative;
  overflow: hidden;
  margin: 0;
  border: 1px solid var(--line);
  background: var(--ink-2);
}

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

.page-faq .fig-frame--tall img {
  aspect-ratio: 1000 / 640;
}

.page-faq .fig-frame--wide img {
  aspect-ratio: 1200 / 680;
}

.page-faq .fig-frame__cap {
  display: block;
  padding: 10px 12px;
  border-top: 1px solid var(--faq-dash);
  font-size: 12.5px;
  line-height: 1.6;
  letter-spacing: .02em;
  color: var(--muted);
}

/* ---------- 主体骨架与锚点目录 ---------- */
.page-faq .faq-shell {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
  padding-top: 8px;
}

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

.page-faq .faq-shell__toc {
  order: -1;
}

.page-faq .faq-shell__toc-title {
  margin: 0 0 8px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--muted);
}

.page-faq .toc {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  gap: 8px;
  overflow-x: auto;
  padding-bottom: 8px;
  scrollbar-width: thin;
}

.page-faq .toc li {
  flex: 0 0 auto;
}

.page-faq .toc__link {
  display: block;
  padding: 6px 2px;
  border-bottom: 2px solid var(--line);
  font-size: 13px;
  line-height: 1.5;
  white-space: nowrap;
  color: var(--muted);
  text-decoration: none;
  transition: color .2s ease, border-color .2s ease;
}

.page-faq .toc__link:hover {
  color: var(--paper);
  border-bottom-color: var(--gold);
}

.page-faq .toc__link[aria-current] {
  color: var(--cyan);
  border-bottom-color: var(--cyan);
}

/* ---------- 分组 ---------- */
.page-faq .faq-group {
  padding: 46px 0 22px;
  border-top: 1px solid var(--line);
}

.page-faq .faq-group:first-child {
  border-top: 0;
  padding-top: 22px;
}

.page-faq .faq-group__fig {
  margin-bottom: 22px;
}

.page-faq .sec-head {
  margin-bottom: 22px;
}

.page-faq .sec-head__kicker {
  margin: 0 0 8px;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--cyan);
}

.page-faq .sec-head__title {
  margin: 0 0 8px;
  font-family: var(--font-cond);
  font-size: clamp(21px, 4.6vw, 31px);
  font-weight: 700;
  line-height: 1.26;
  letter-spacing: .03em;
  color: var(--paper);
}

.page-faq .sec-head__meta {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: .06em;
  color: var(--muted);
}

/* ---------- 问答条目 ---------- */
.page-faq .faq-list {
  display: grid;
  gap: 10px;
}

.page-faq .faq-item {
  border: 1px solid var(--line);
  border-left: 3px solid rgba(147, 166, 192, .34);
  background: linear-gradient(180deg, rgba(18, 35, 63, .5), rgba(10, 23, 48, .62));
  transition: border-color .22s ease, background .22s ease;
}

.page-faq .faq-item[open] {
  border-left-color: var(--cyan);
  background: linear-gradient(180deg, var(--faq-card-open), rgba(10, 23, 48, .92));
}

.page-faq .faq-item__q {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 16px;
  cursor: pointer;
  list-style: none;
  font-size: 16px;
  font-weight: 600;
  line-height: 1.55;
  color: var(--paper);
  transition: color .2s ease;
}

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

.page-faq .faq-item__q::marker {
  content: "";
}

.page-faq .faq-item__q:hover {
  color: var(--gold-hi);
}

.page-faq .faq-item__text {
  flex: 1 1 auto;
  min-width: 0;
}

.page-faq .faq-item__chev {
  position: relative;
  flex: 0 0 auto;
  align-self: center;
  width: 18px;
  height: 18px;
  color: var(--muted);
  transition: color .22s ease;
}

.page-faq .faq-item__chev::before,
.page-faq .faq-item__chev::after {
  content: "";
  position: absolute;
  left: 50%;
  top: 50%;
  background: currentColor;
  transform: translate(-50%, -50%);
}

.page-faq .faq-item__chev::before {
  width: 12px;
  height: 1.5px;
}

.page-faq .faq-item__chev::after {
  width: 1.5px;
  height: 12px;
  transition: transform .22s ease, opacity .22s ease;
}

.page-faq .faq-item[open] .faq-item__chev {
  color: var(--cyan);
}

.page-faq .faq-item[open] .faq-item__chev::after {
  transform: translate(-50%, -50%) rotate(90deg);
  opacity: 0;
}

.page-faq .faq-item__a {
  padding: 0 18px 20px;
  font-size: 15.5px;
  line-height: 1.78;
  color: rgba(233, 241, 247, .86);
}

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

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

.page-faq .faq-item__a a {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(53, 224, 214, .35);
  transition: color .2s ease, border-color .2s ease;
}

.page-faq .faq-item__a a:hover {
  color: var(--gold-hi);
  border-bottom-color: var(--gold);
}

/* ---------- 步骤序号 ---------- */
.page-faq .faq-steps {
  list-style: none;
  margin: 12px 0 0;
  padding: 0;
  display: grid;
  gap: 8px;
}

.page-faq .faq-steps li {
  display: grid;
  grid-template-columns: 32px minmax(0, 1fr);
  gap: 10px;
  align-items: baseline;
  padding: 9px 12px;
  border-left: 1px dashed rgba(53, 224, 214, .36);
  background: rgba(10, 23, 48, .55);
  font-size: 14.5px;
  line-height: 1.7;
}

.page-faq .faq-steps li .mono {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .1em;
  color: var(--cyan);
}

/* ---------- 收束区 ---------- */
.page-faq .faq-help__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 26px;
}

.page-faq .faq-checklist {
  list-style: none;
  margin: 0 0 20px;
  padding: 20px;
  border: 1px dashed var(--line-strong);
  display: grid;
  gap: 12px;
  background: rgba(10, 23, 48, .4);
}

.page-faq .faq-checklist li {
  display: grid;
  grid-template-columns: 16px minmax(0, 1fr);
  gap: 10px;
  align-items: start;
  font-size: 15px;
  line-height: 1.68;
  color: var(--paper);
}

.page-faq .faq-checklist li::before {
  content: "";
  width: 13px;
  height: 13px;
  margin-top: 6px;
  border: 1px solid var(--cyan);
  background: linear-gradient(135deg, rgba(53, 224, 214, .3), transparent 70%);
}

.page-faq .faq-help__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  align-items: center;
}

.page-faq .copy-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 16px;
  border: 1px solid var(--line-strong);
  background: transparent;
  color: var(--gold-hi);
  font-family: var(--font-sans);
  font-size: 14px;
  letter-spacing: .03em;
  cursor: pointer;
  transition: background .2s ease, color .2s ease, border-color .2s ease;
}

.page-faq .copy-btn:hover {
  background: rgba(200, 164, 92, .12);
}

.page-faq .copy-btn[data-copied] {
  color: var(--cyan);
  border-color: var(--cyan);
}

.page-faq .faq-help__note {
  margin: 16px 0 0;
  font-size: 13px;
  line-height: 1.7;
  color: var(--muted);
}

.page-faq .faq-contact {
  padding: 22px;
  border: 1px solid var(--line);
  border-top: 3px solid var(--magenta);
  background: linear-gradient(165deg, rgba(18, 35, 63, .96), rgba(10, 23, 48, .92));
}

.page-faq .faq-contact__label {
  margin: 0 0 14px;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--magenta);
}

.page-faq .faq-contact__row {
  display: grid;
  gap: 4px;
  margin: 0 0 14px;
  padding-bottom: 14px;
  border-bottom: 1px dashed var(--faq-dash);
}

.page-faq .faq-contact__row:last-of-type {
  border-bottom: 0;
}

.page-faq .faq-contact__k {
  font-size: 12px;
  letter-spacing: .08em;
  color: var(--muted);
}

.page-faq .faq-contact__v {
  font-size: 14.5px;
  line-height: 1.6;
  color: var(--paper);
  word-break: break-word;
}

.page-faq .faq-contact__foot {
  margin: 18px 0 0;
  padding-top: 14px;
  border-top: 1px solid var(--faq-dash);
  font-size: 12px;
  letter-spacing: .06em;
  color: var(--muted);
}

/* ---------- 响应式 ---------- */
@media (min-width: 560px) {
  .page-faq .faq-index__cats {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 900px) {
  .page-faq .faq-hero {
    padding: 26px 0 72px;
  }

  .page-faq .faq-hero__grid {
    grid-template-columns: minmax(0, 1.7fr) minmax(0, 1fr);
    gap: 48px;
    align-items: start;
  }

  .page-faq .faq-help__grid {
    grid-template-columns: minmax(0, 1.4fr) minmax(0, 1fr);
    gap: 36px;
    align-items: start;
  }

  .page-faq .faq-group {
    padding: 56px 0 26px;
  }
}

@media (min-width: 1000px) {
  .page-faq .faq-index__grid {
    grid-template-columns: minmax(0, 2fr) minmax(0, 1fr);
    gap: 32px;
    align-items: start;
  }
}

@media (min-width: 1040px) {
  .page-faq .faq-shell {
    grid-template-columns: minmax(0, 1fr) 214px;
    gap: 56px;
    align-items: start;
  }

  .page-faq .faq-shell__toc {
    order: 0;
    position: sticky;
    top: calc(var(--head) + var(--rail) + 24px);
    margin-bottom: 0;
  }

  .page-faq .toc {
    display: grid;
    gap: 2px;
    overflow: visible;
    padding-bottom: 0;
  }

  .page-faq .toc li {
    flex: initial;
  }

  .page-faq .toc__link {
    padding: 9px 12px;
    border-bottom: 0;
    border-left: 2px solid var(--line);
    white-space: normal;
    font-size: 13.5px;
    line-height: 1.4;
  }

  .page-faq .toc__link:hover {
    border-left-color: var(--gold);
    background: rgba(200, 164, 92, .07);
  }

  .page-faq .toc__link[aria-current] {
    border-left-color: var(--cyan);
    background: rgba(53, 224, 214, .08);
  }
}

@media (min-width: 1200px) {
  .page-faq .faq-item__q {
    padding: 18px 20px;
    font-size: 16.5px;
  }

  .page-faq .faq-item__a {
    padding: 0 22px 22px 20px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq *,
  .page-faq *::before,
  .page-faq *::after {
    transition-duration: .001ms !important;
    animation-duration: .001ms !important;
  }

  .page-faq .faq-cat:hover,
  .page-faq .faq-cat:focus-visible {
    transform: none;
  }
}