.page-faq {
  --faq-sticky-top: 104px;
  --faq-card-shadow: 8px 8px 0 rgba(6, 14, 26, 0.62);
  padding-bottom: 72px;
}

/* ---------- 面包屑 ---------- */
.page-faq .faq-crumbs {
  padding: 22px 0 6px;
  font-family: var(--ng-mono);
  font-size: 12px;
  letter-spacing: 0.04em;
  color: var(--ng-dim);
}

/* ---------- 首屏 ---------- */
.page-faq .faq-intro {
  display: grid;
  gap: 36px;
  padding: 26px 0 60px;
  border-bottom: var(--ng-hairline);
}

.page-faq .faq-intro__title {
  margin: 12px 0 20px;
  font-size: clamp(32px, 6.4vw, 62px);
  line-height: 1.06;
  letter-spacing: -0.01em;
  max-width: 15em;
}

.page-faq .faq-intro__lead {
  font-size: 16px;
  line-height: 1.8;
  color: var(--ng-text);
  max-width: 40em;
}

.page-faq .faq-intro__facts {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1px;
  margin-top: 34px;
  background: var(--ng-grid);
  border: var(--ng-hairline);
}

.page-faq .faq-fact {
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding: 18px 16px;
  background: var(--ng-night);
}

.page-faq .faq-fact__num {
  font-size: 26px;
  line-height: 1;
  color: var(--ng-neon);
  letter-spacing: 0.02em;
}

.page-faq .faq-fact__txt {
  font-size: 13px;
  line-height: 1.55;
  color: var(--ng-dim);
}

.page-faq .faq-intro__quick {
  position: relative;
  align-self: start;
  padding: 30px 24px 20px;
  background: var(--ng-paper);
  color: var(--ng-paper-text);
  border: 1px solid var(--ng-paper-2);
  box-shadow: var(--faq-card-shadow);
}

.page-faq .faq-intro__vertical {
  position: absolute;
  top: 20px;
  right: 16px;
  font-size: 12px;
  letter-spacing: 0.2em;
  color: var(--ng-paper-dim);
}

.page-faq .faq-quicklist {
  list-style: none;
  margin: 8px 0 0;
  padding: 0;
}

.page-faq .faq-quicklist__link {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 14px 0;
  border-bottom: 1px solid rgba(18, 32, 47, 0.16);
  color: var(--ng-paper-text);
  font-size: 15px;
  text-decoration: none;
}

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

.page-faq .faq-quicklist__link:hover,
.page-faq .faq-quicklist__link:focus-visible {
  color: var(--ng-neon-dark);
}

.page-faq .faq-quicklist__link .ng-quick__arrow {
  flex: none;
  transition: transform 0.2s ease;
}

.page-faq .faq-quicklist__link:hover .ng-quick__arrow {
  transform: translateX(4px);
}

/* ---------- 章节标题 ---------- */
.page-faq .faq-body__title,
.page-faq .faq-ends .ng-title,
.page-faq .faq-manual .ng-title {
  margin: 10px 0 14px;
  font-size: clamp(26px, 4.4vw, 42px);
  line-height: 1.15;
}

.page-faq .faq-ends,
.page-faq .faq-manual,
.page-faq .faq-next {
  padding: 64px 0 0;
  margin-top: 64px;
  border-top: var(--ng-hairline);
}

/* ---------- 索引 + 问答两栏 ---------- */
.page-faq .faq-layout {
  display: grid;
  gap: 30px;
  margin-top: 36px;
}

.page-faq .faq-index__label {
  font-size: 11px;
  letter-spacing: 0.24em;
  color: var(--ng-neon-dark);
  margin: 0 0 12px;
}

.page-faq .faq-index__list {
  list-style: none;
  margin: 0;
  padding: 0 0 6px;
  display: grid;
  grid-auto-flow: column;
  grid-auto-columns: max-content;
  gap: 8px;
  overflow-x: auto;
  scrollbar-width: thin;
}

.page-faq .faq-index__link {
  display: flex;
  align-items: baseline;
  gap: 8px;
  padding: 9px 12px;
  border: 1px solid var(--ng-grid);
  color: var(--ng-dim);
  font-size: 13px;
  text-decoration: none;
  white-space: nowrap;
  transition: color 0.2s ease, border-color 0.2s ease;
}

.page-faq .faq-index__link:hover,
.page-faq .faq-index__link:focus-visible {
  color: var(--ng-neon);
  border-color: var(--ng-neon);
}

.page-faq .faq-index__num {
  font-size: 11px;
  color: var(--ng-neon-dark);
}

.page-faq .faq-index__figure {
  margin: 26px 0 0;
}

.page-faq .faq-index__figure .ng-figure__cap {
  margin-top: 10px;
  font-size: 12px;
  line-height: 1.6;
  color: var(--ng-dim);
}

/* ---------- 筛选条 ---------- */
.page-faq .faq-filterbar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  padding-bottom: 18px;
  border-bottom: var(--ng-hairline);
}

.page-faq .faq-filter__label {
  font-size: 11px;
  letter-spacing: 0.2em;
  color: var(--ng-neon-dark);
  margin-right: 2px;
}

.page-faq .faq-filter__count {
  margin-left: auto;
  font-size: 11px;
  letter-spacing: 0.06em;
  color: var(--ng-dim);
}

/* ---------- 折叠分组 ---------- */
.page-faq .faq-groups {
  list-style: none;
  margin: 22px 0 0;
  padding: 0;
  display: grid;
  gap: 18px;
}

.page-faq .faq-group {
  background: var(--ng-paper);
  color: var(--ng-paper-text);
  border: 1px solid var(--ng-paper-2);
  box-shadow: var(--faq-card-shadow);
}

.page-faq .faq-group__summary {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  align-items: center;
  gap: 4px 12px;
  padding: 18px 18px 18px 16px;
  border-left: 4px solid transparent;
  cursor: pointer;
  list-style: none;
  transition: border-color 0.2s ease, background 0.2s ease;
}

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

.page-faq .faq-group__summary:hover {
  background: rgba(18, 32, 47, 0.04);
}

.page-faq .faq-group[open] > .faq-group__summary {
  border-left-color: var(--ng-neon-dark);
  background: rgba(27, 138, 115, 0.07);
}

.page-faq .faq-group__num {
  grid-column: 1;
  grid-row: 1 / span 2;
  align-self: start;
  padding-top: 3px;
  font-size: 13px;
  letter-spacing: 0.04em;
  color: var(--ng-paper-dim);
}

.page-faq .faq-group__title {
  grid-column: 2;
  grid-row: 1;
  font-size: 17px;
  font-weight: 700;
  line-height: 1.4;
}

.page-faq .faq-group__hint {
  grid-column: 2;
  grid-row: 2;
  font-size: 13px;
  line-height: 1.6;
  color: var(--ng-paper-dim);
}

.page-faq .faq-group__chev {
  grid-column: 3;
  grid-row: 1 / span 2;
  align-self: center;
  position: relative;
  width: 20px;
  height: 20px;
  flex: none;
}

.page-faq .faq-group__chev::before,
.page-faq .faq-group__chev::after {
  content: "";
  position: absolute;
  background: var(--ng-paper-text);
  transition: transform 0.24s ease, opacity 0.24s ease;
}

.page-faq .faq-group__chev::before {
  left: 50%;
  top: 3px;
  width: 1px;
  height: 14px;
  transform: translateX(-50%);
}

.page-faq .faq-group__chev::after {
  top: 50%;
  left: 3px;
  width: 14px;
  height: 1px;
  transform: translateY(-50%);
}

.page-faq .faq-group[open] .faq-group__chev::before {
  transform: translateX(-50%) scaleY(0);
  opacity: 0;
}

.page-faq .faq-group__body {
  padding: 4px 18px 24px 16px;
  border-top: 1px solid rgba(18, 32, 47, 0.14);
}

/* ---------- 问答内容 ---------- */
.page-faq .faq-qa {
  padding-top: 22px;
}

.page-faq .faq-qa + .faq-qa {
  margin-top: 22px;
  border-top: 1px solid rgba(18, 32, 47, 0.12);
}

.page-faq .faq-qa__q {
  margin: 0 0 12px;
  font-size: 16px;
  font-weight: 700;
  line-height: 1.55;
  color: var(--ng-paper-text);
}

.page-faq .faq-answer-key {
  margin: 0 0 14px;
  padding: 11px 14px;
  border-left: 3px solid var(--ng-neon-dark);
  background: rgba(27, 138, 115, 0.1);
  font-size: 15px;
  font-weight: 600;
  line-height: 1.7;
  color: var(--ng-paper-text);
}

.page-faq .faq-steps {
  counter-reset: faqstep;
  list-style: none;
  margin: 0 0 14px;
  padding: 0;
  display: grid;
  gap: 9px;
}

.page-faq .faq-steps > li {
  counter-increment: faqstep;
  display: grid;
  grid-template-columns: 26px minmax(0, 1fr);
  gap: 10px;
  align-items: baseline;
  font-size: 15px;
  line-height: 1.72;
  color: var(--ng-paper-text);
}

.page-faq .faq-steps > li::before {
  content: counter(faqstep, decimal-leading-zero);
  font-family: var(--ng-mono);
  font-size: 12px;
  letter-spacing: 0.02em;
  color: var(--ng-neon-dark);
  padding-top: 1px;
}

.page-faq .faq-jump {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--ng-mono);
  font-size: 12px;
  letter-spacing: 0.02em;
  color: var(--ng-neon-dark);
  text-decoration: none;
  border-bottom: 1px solid currentColor;
  padding-bottom: 2px;
}

.page-faq .faq-jump:hover,
.page-faq .faq-jump:focus-visible {
  color: var(--ng-paper-text);
}

/* ---------- 分端排查 ---------- */
.page-faq .faq-ends__figure {
  margin: 26px 0 0;
}

.page-faq .faq-ends__figure .ng-figure__cap {
  margin-top: 10px;
  font-size: 12px;
  line-height: 1.6;
  color: var(--ng-dim);
}

.page-faq .faq-ends__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1px;
  margin-top: 30px;
  background: var(--ng-grid);
  border: var(--ng-hairline);
}

.page-faq .faq-end {
  padding: 24px 20px;
  background: var(--ng-night);
}

.page-faq .faq-end__name {
  margin: 0 0 16px;
  font-family: var(--ng-mono);
  font-size: 14px;
  font-weight: 700;
  letter-spacing: 0.14em;
  color: var(--ng-neon);
}

.page-faq .faq-end__row {
  padding: 12px 0;
  border-top: var(--ng-hairline);
}

.page-faq .faq-end__row:first-of-type {
  border-top: 0;
  padding-top: 0;
}

.page-faq .faq-end__k {
  display: block;
  margin-bottom: 5px;
  font-family: var(--ng-mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  color: var(--ng-neon-dark);
}

.page-faq .faq-end__v {
  margin: 0;
  font-size: 14px;
  line-height: 1.72;
  color: var(--ng-text);
}

/* ---------- 人工核对 ---------- */
.page-faq .faq-manual__grid {
  display: grid;
  gap: 34px;
  margin-top: 30px;
}

.page-faq .faq-manual__list {
  list-style: none;
  margin: 24px 0 0;
  padding: 0;
  display: grid;
  gap: 0;
  border-top: var(--ng-hairline);
}

.page-faq .faq-manual__item {
  display: grid;
  grid-template-columns: 38px minmax(0, 1fr);
  gap: 14px;
  padding: 20px 0;
  border-bottom: var(--ng-hairline);
}

.page-faq .faq-manual__idx {
  font-size: 13px;
  letter-spacing: 0.04em;
  color: var(--ng-neon);
  padding-top: 3px;
}

.page-faq .faq-manual__item h3 {
  margin: 0 0 8px;
  font-size: 17px;
  line-height: 1.45;
  color: var(--ng-text);
}

.page-faq .faq-manual__item p {
  margin: 0;
  font-size: 15px;
  line-height: 1.76;
  color: var(--ng-dim);
}

.page-faq .faq-manual__card {
  align-self: start;
  padding: 28px 24px 24px;
  background: var(--ng-ink);
  border: 1px solid var(--ng-neon-dark);
}

.page-faq .faq-manual__cardlabel {
  margin: 0 0 14px;
  font-size: 11px;
  letter-spacing: 0.24em;
  color: var(--ng-neon);
}

.page-faq .faq-manual__cardtitle {
  margin: 0 0 12px;
  font-size: 20px;
  line-height: 1.4;
  color: var(--ng-text);
}

.page-faq .faq-manual__cardtext {
  margin: 0 0 22px;
  font-size: 14px;
  line-height: 1.78;
  color: var(--ng-dim);
}

.page-faq .faq-manual__contactline {
  display: grid;
  gap: 4px;
  padding: 13px 0;
  border-top: var(--ng-hairline);
}

.page-faq .faq-manual__k {
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--ng-neon-dark);
}

.page-faq .faq-manual__v {
  font-size: 14px;
  letter-spacing: 0.02em;
  color: var(--ng-text);
  word-break: break-all;
}

.page-faq .faq-manual__btn {
  margin-top: 20px;
}

/* ---------- 收尾 ---------- */
.page-faq .faq-next__title {
  margin: 0 0 20px;
  font-size: clamp(24px, 4vw, 36px);
  line-height: 1.2;
}

.page-faq .faq-next__row {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.page-faq .faq-next__note {
  margin: 22px 0 0;
  max-width: 46em;
}

/* ---------- 平板 ---------- */
@media (min-width: 640px) {
  .page-faq .faq-intro__facts {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-faq .faq-ends__grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-faq .faq-group__summary {
    padding: 20px 22px 20px 18px;
  }

  .page-faq .faq-group__body {
    padding: 4px 22px 26px 18px;
  }
}

/* ---------- 桌面 ---------- */
@media (min-width: 900px) {
  .page-faq .faq-intro {
    grid-template-columns: 1.35fr 0.65fr;
    gap: 56px;
    padding: 40px 0 76px;
  }

  .page-faq .faq-intro__lead {
    font-size: 17px;
  }

  .page-faq .faq-layout {
    grid-template-columns: 236px minmax(0, 1fr);
    gap: 52px;
    align-items: start;
  }

  .page-faq .faq-index__sticky {
    position: sticky;
    top: var(--faq-sticky-top);
  }

  .page-faq .faq-index__list {
    grid-auto-flow: row;
    grid-auto-columns: auto;
    grid-template-columns: minmax(0, 1fr);
    gap: 0;
    overflow: visible;
    padding-bottom: 0;
  }

  .page-faq .faq-index__link {
    padding: 13px 0;
    border: 0;
    border-bottom: var(--ng-hairline);
    white-space: normal;
    font-size: 14px;
  }

  .page-faq .faq-index__link:hover,
  .page-faq .faq-index__link:focus-visible {
    border-color: var(--ng-neon-dark);
  }

  .page-faq .faq-ends__grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-faq .faq-manual__grid {
    grid-template-columns: 1.15fr 0.85fr;
    gap: 56px;
  }
}

@media (min-width: 1100px) {
  .page-faq .faq-intro__title {
    font-size: 64px;
  }
}

/* ---------- 动效降级 ---------- */
@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-group__chev::before,
  .page-faq .faq-group__chev::after,
  .page-faq .faq-quicklist__link .ng-quick__arrow,
  .page-faq .faq-group__summary {
    transition: none;
  }
}
<<<END>>>