.page-faq {
  --faq-answer: #26313d;
}

/* ---------- 面包屑 ---------- */
.page-faq .faq-crumb {
  padding-top: clamp(18px, 3vw, 30px);
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  overflow: hidden;
  background:
    radial-gradient(120% 100% at 84% 4%, rgba(79, 163, 209, .40), transparent 62%),
    radial-gradient(95% 90% at 4% 98%, rgba(47, 107, 79, .45), transparent 68%),
    var(--ab-night);
  border-bottom: 3px solid var(--ab-night);
}

.page-faq .faq-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(201, 216, 228, .10) 1px, transparent 1px),
    linear-gradient(90deg, rgba(201, 216, 228, .10) 1px, transparent 1px);
  background-size: 96px 96px;
  pointer-events: none;
}

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

.page-faq .faq-hero__lead {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.page-faq .faq-hero__title {
  color: var(--ab-mist);
  text-wrap: balance;
}

.page-faq .faq-hero__lede {
  color: var(--ab-on-night);
  max-width: 46ch;
}

.page-faq .faq-hero .ab-kicker {
  color: var(--ab-amber);
}

.page-faq .faq-hero__map {
  margin-top: clamp(28px, 5vw, 0px);
}

.page-faq .faq-map {
  background: var(--ab-mist);
  border: var(--ab-border);
  box-shadow: 10px 10px 0 rgba(0, 0, 0, .35);
  padding: clamp(18px, 2.6vw, 28px);
}

.page-faq .faq-map__title {
  margin: 0 0 14px;
  font-family: var(--ab-mono);
  font-size: 12.5px;
  letter-spacing: .14em;
  color: var(--ab-note);
}

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

.page-faq .faq-map__link {
  display: grid;
  grid-template-columns: 42px minmax(0, 1fr) auto;
  align-items: baseline;
  gap: 10px;
  padding: 13px 10px;
  color: var(--ab-ink);
  text-decoration: none;
  border-bottom: 1px solid var(--ab-line-soft);
  transition: background-color 160ms ease, box-shadow 160ms ease;
}

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

.page-faq .faq-map__link:hover,
.page-faq .faq-map__link:focus-visible {
  background: rgba(242, 179, 61, .3);
  box-shadow: inset 4px 0 0 var(--ab-amber);
}

.page-faq .faq-map__link:focus-visible {
  outline: 3px solid var(--ab-blue);
  outline-offset: -3px;
}

.page-faq .faq-map__num {
  font-family: var(--ab-mono);
  font-size: 13px;
  letter-spacing: .05em;
  color: var(--ab-blue);
}

.page-faq .faq-map__name {
  font-size: 17px;
  font-weight: 700;
  line-height: 1.4;
}

.page-faq .faq-map__meta {
  display: none;
  font-family: var(--ab-mono);
  font-size: 12px;
  color: var(--ab-note);
}

@media (min-width: 560px) {
  .page-faq .faq-map__meta {
    display: inline;
  }
}

/* ---------- 分组骨架 ---------- */
.page-faq .faq-group {
  border-bottom: 3px solid var(--ab-line);
}

.page-faq .faq-group--tint {
  background: var(--ab-ice);
}

.page-faq .faq-group__head {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 12px;
  max-width: 66ch;
  margin-bottom: clamp(26px, 4vw, 46px);
}

.page-faq .faq-group__lede {
  margin: 0;
  font-size: 17px;
  line-height: 1.75;
  color: var(--faq-answer);
}

.page-faq .faq-vnote {
  display: none;
}

@media (min-width: 1100px) {
  .page-faq .faq-vnote {
    display: block;
    position: absolute;
    right: -34%;
    top: 0;
    margin: 0;
  }
}

/* ---------- 时间轴 ---------- */
.page-faq .faq-timeline {
  list-style: none;
  margin: 0 0 clamp(26px, 4vw, 44px);
  padding: 0;
  display: grid;
  border: var(--ab-border);
  background: var(--ab-mist);
  box-shadow: var(--ab-shadow);
}

.page-faq .faq-timeline__node {
  display: grid;
  gap: 6px;
  padding: 18px 20px;
  border-left: 6px solid var(--ab-blue);
}

.page-faq .faq-timeline__node + .faq-timeline__node {
  border-top: 2px solid var(--ab-line);
}

.page-faq .faq-timeline__node:nth-child(2) {
  border-left-color: var(--ab-amber);
}

.page-faq .faq-timeline__node:nth-child(3) {
  border-left-color: var(--ab-locust);
}

.page-faq .faq-timeline__time {
  font-family: var(--ab-mono);
  font-size: 14px;
  letter-spacing: .04em;
  color: var(--ab-ink);
}

.page-faq .faq-timeline__text {
  font-size: 15.5px;
  line-height: 1.7;
  color: var(--ab-note);
}

@media (min-width: 820px) {
  .page-faq .faq-timeline {
    grid-template-columns: repeat(3, 1fr);
  }

  .page-faq .faq-timeline__node + .faq-timeline__node {
    border-top: 0;
    border-left-width: 6px;
    border-left-color: var(--ab-amber);
  }

  .page-faq .faq-timeline__node:nth-child(3) {
    border-left-color: var(--ab-locust);
  }
}

/* ---------- 折叠问答 ---------- */
.page-faq .faq-list {
  display: grid;
  gap: 14px;
}

.page-faq .faq-item {
  position: relative;
  border: var(--ab-border);
  background: var(--ab-mist);
  box-shadow: var(--ab-shadow);
  transition: box-shadow 180ms ease;
}

.page-faq .faq-item[open] {
  box-shadow: var(--ab-shadow-hover);
}

.page-faq .faq-item > summary {
  list-style: none;
  cursor: pointer;
  display: block;
  padding: clamp(16px, 2.4vw, 24px) clamp(52px, 26%, 220px) clamp(16px, 2.4vw, 24px) clamp(16px, 2.4vw, 26px);
  font-size: clamp(16.5px, 1.5vw, 20px);
  font-weight: 700;
  line-height: 1.55;
  color: var(--ab-ink);
}

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

.page-faq .faq-item > summary:focus-visible {
  outline: 3px solid var(--ab-blue);
  outline-offset: -3px;
}

.page-faq .faq-item__sign {
  position: absolute;
  top: clamp(20px, 2.6vw, 28px);
  right: clamp(16px, 2.4vw, 26px);
  width: 18px;
  height: 18px;
  pointer-events: none;
}

.page-faq .faq-item__sign::before,
.page-faq .faq-item__sign::after {
  content: "";
  position: absolute;
  background: var(--ab-ink);
  transition: transform 160ms ease;
}

.page-faq .faq-item__sign::before {
  top: 8px;
  left: 0;
  width: 18px;
  height: 3px;
}

.page-faq .faq-item__sign::after {
  top: 0;
  left: 7.5px;
  width: 3px;
  height: 18px;
}

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

.page-faq .faq-item__a {
  position: relative;
  border-top: 2px solid var(--ab-line);
  padding: clamp(16px, 2.4vw, 22px) clamp(18px, 3vw, 30px) clamp(20px, 3vw, 30px) clamp(30px, 5.5vw, 88px);
}

.page-faq .faq-item__a::before {
  content: "";
  position: absolute;
  left: clamp(14px, 2.6vw, 30px);
  top: clamp(20px, 2.8vw, 28px);
  bottom: clamp(22px, 3vw, 32px);
  width: 4px;
  background: var(--ab-blue);
}

.page-faq .faq-item__a p {
  margin: 0;
  max-width: 68ch;
  font-size: 16.5px;
  line-height: 1.78;
  color: var(--faq-answer);
}

/* ---------- 图文分栏 ---------- */
.page-faq .faq-split {
  align-items: start;
}

.page-faq .faq-shot {
  margin-top: clamp(26px, 4vw, 0px);
}

/* ---------- 档位切换 ---------- */
.page-faq .faq-dials {
  margin-top: clamp(24px, 3.5vw, 36px);
}

.page-faq .faq-dials__tabs {
  display: flex;
  flex-wrap: wrap;
  border: var(--ab-border);
  border-bottom: 0;
}

.page-faq .faq-dials__radio {
  position: absolute;
  width: 1px;
  height: 1px;
  margin: -1px;
  padding: 0;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
  border: 0;
}

.page-faq .faq-dials__tabs label {
  flex: 1 1 108px;
  padding: 14px 10px;
  text-align: center;
  font-family: var(--ab-mono);
  font-size: 13.5px;
  letter-spacing: .04em;
  background: var(--ab-ice);
  color: var(--ab-ink);
  border-right: 2px solid var(--ab-line);
  cursor: pointer;
  transition: background-color 160ms ease, color 160ms ease;
}

.page-faq .faq-dials__tabs label:last-of-type {
  border-right: 0;
}

.page-faq .faq-dials__radio:checked + label {
  background: var(--ab-amber);
  color: var(--ab-ink);
  font-weight: 700;
}

.page-faq .faq-dials__radio:focus-visible + label {
  outline: 3px solid var(--ab-blue);
  outline-offset: -3px;
}

.page-faq .faq-dials__panels {
  border: var(--ab-border);
  background: var(--ab-mist);
  box-shadow: var(--ab-shadow);
}

.page-faq .faq-dials__panel {
  display: none;
  margin: 0;
  padding: clamp(18px, 2.6vw, 26px);
  font-size: 16.5px;
  line-height: 1.78;
  color: var(--faq-answer);
  border-left: 6px solid var(--ab-locust);
  max-width: 62ch;
}

.page-faq #faq-dial-phone:checked ~ .faq-dials__panels .faq-dials__panel:nth-child(1),
.page-faq #faq-dial-pad:checked ~ .faq-dials__panels .faq-dials__panel:nth-child(2),
.page-faq #faq-dial-tv:checked ~ .faq-dials__panels .faq-dials__panel:nth-child(3) {
  display: block;
}

/* ---------- 结尾去向 ---------- */
.page-faq .faq-next {
  background: var(--ab-night);
}

.page-faq .faq-next__box {
  border: 3px solid var(--ab-ice);
  padding: clamp(24px, 4vw, 48px);
  display: flex;
  flex-direction: column;
  gap: 16px;
  background: rgba(201, 216, 228, .06);
}

.page-faq .faq-next__title {
  color: var(--ab-mist);
  margin: 0;
}

.page-faq .faq-next__text {
  margin: 0;
  max-width: 62ch;
  font-size: 16.5px;
  line-height: 1.78;
  color: var(--ab-on-night);
}

.page-faq .faq-next__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 8px;
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-map__link,
  .page-faq .faq-item,
  .page-faq .faq-item__sign::before,
  .page-faq .faq-item__sign::after,
  .page-faq .faq-dials__tabs label {
    transition: none;
  }
}
<<<END>>>