.page-faq {
  --faq-rail: 218px;
  --faq-sticky: 104px;
  --faq-gap: clamp(30px, 5vw, 60px);
}

/* ---------- 面包屑 ---------- */
.page-faq .abg-breadcrumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  padding-top: 22px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--slate);
}

.page-faq .abg-breadcrumb__item {
  color: var(--slate);
  text-decoration: none;
  transition: color 0.2s var(--ease);
}

.page-faq a.abg-breadcrumb__item:hover {
  color: var(--cyan);
}

.page-faq .abg-breadcrumb__item[aria-current="page"] {
  color: var(--mint);
}

.page-faq .abg-breadcrumb__sep {
  color: rgba(124, 147, 168, 0.6);
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  margin-top: clamp(16px, 3vw, 30px);
  padding: clamp(26px, 4.6vw, 54px) clamp(20px, 4vw, 48px) clamp(30px, 4.6vw, 52px);
  background:
    radial-gradient(120% 100% at 88% 0%, rgba(122, 92, 255, 0.28), transparent 60%),
    radial-gradient(80% 90% at 2% 100%, rgba(36, 240, 216, 0.13), transparent 62%),
    linear-gradient(180deg, var(--reef), var(--abyss));
  border: 1px solid var(--line);
  overflow: hidden;
}

.page-faq .faq-hero::after {
  content: "";
  position: absolute;
  right: -6%;
  bottom: -54px;
  width: 56%;
  height: 140px;
  border-top: 1px solid rgba(36, 240, 216, 0.45);
  transform: rotate(-5deg);
  pointer-events: none;
}

.page-faq .faq-hero__title {
  margin: 16px 0 0;
  max-width: 18em;
  font-family: var(--font-head);
  font-weight: 900;
  font-size: clamp(28px, 6vw, 58px);
  line-height: 1.1;
  letter-spacing: 0.05em;
  color: var(--mint);
}

.page-faq .faq-hero__lede {
  margin: 20px 0 0;
  max-width: 34em;
  font-size: clamp(15px, 1.5vw, 16.5px);
  line-height: 1.85;
  color: var(--mint);
  opacity: 0.84;
}

.page-faq .faq-hero__quick {
  margin-top: clamp(26px, 4vw, 42px);
  max-width: 800px;
  border-top: 1px solid var(--line);
}

.page-faq .faq-hero__quick-label {
  margin: 0;
  padding: 16px 0 4px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.2em;
  color: var(--slate);
}

/* ---------- 手风琴条目 ---------- */
.page-faq .faq-item {
  border-bottom: 1px solid var(--line-soft);
}

.page-faq .faq-item > summary.faq-item__q {
  position: relative;
  display: flex;
  align-items: baseline;
  gap: 14px;
  padding: 16px 34px 16px 0;
  cursor: pointer;
  list-style: none;
  color: var(--mint);
  font-size: clamp(15px, 1.6vw, 17px);
  font-weight: 600;
  line-height: 1.55;
  letter-spacing: 0.02em;
  transition: color 0.2s var(--ease);
}

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

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

.page-faq .faq-item > summary.faq-item__q::after {
  content: "+";
  position: absolute;
  right: 2px;
  top: 50%;
  transform: translateY(-50%);
  font-family: var(--font-mono);
  font-size: 17px;
  line-height: 1;
  color: var(--cyan);
}

.page-faq .faq-item[open] > summary.faq-item__q::after {
  content: "–";
}

.page-faq .faq-item > summary.faq-item__q:hover {
  color: var(--cyan-soft);
}

.page-faq .faq-item > summary.faq-item__q .abg-num {
  flex: 0 0 auto;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--slate);
  transition: color 0.24s var(--ease);
}

.page-faq .faq-item[open] > summary.faq-item__q .abg-num {
  color: var(--cyan);
}

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

.page-faq .faq-item__a {
  padding: 0 30px 18px 36px;
  animation: faq-rise 0.32s var(--ease) both;
}

.page-faq .faq-item__a p {
  margin: 0 0 10px;
  max-width: 44em;
  font-size: 15px;
  line-height: 1.8;
  color: var(--mint);
  opacity: 0.86;
}

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

@keyframes faq-rise {
  from {
    opacity: 0;
    transform: translateY(8px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* ---------- 主栅格 ---------- */
.page-faq .faq-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(30px, 5vw, 48px);
  padding-top: clamp(38px, 6vw, 72px);
  padding-bottom: clamp(48px, 7vw, 96px);
}

.page-faq .faq-index {
  border-top: 1px solid var(--line);
  padding-top: 14px;
}

.page-faq .faq-index__label {
  margin: 0 0 12px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.2em;
  color: var(--slate);
}

.page-faq .faq-index__list {
  display: flex;
  flex-wrap: wrap;
  gap: 6px 18px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-faq .faq-index__list a {
  display: flex;
  align-items: baseline;
  gap: 10px;
  padding: 7px 0;
  font-size: 14px;
  line-height: 1.5;
  color: var(--slate);
  text-decoration: none;
  transition: color 0.2s var(--ease);
}

.page-faq .faq-index__list a:hover {
  color: var(--mint);
}

.page-faq .faq-index__list .abg-num {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  color: var(--cyan);
}

/* ---------- 章节 ---------- */
.page-faq .faq-sec {
  padding-bottom: clamp(32px, 4.6vw, 52px);
  border-bottom: 1px solid var(--line-soft);
  scroll-margin-top: var(--faq-sticky);
}

.page-faq .faq-sec + .faq-sec {
  padding-top: clamp(32px, 4.6vw, 52px);
}

.page-faq .abg-section__head {
  display: flex;
  align-items: baseline;
  gap: 16px;
  margin-bottom: 16px;
}

.page-faq .faq-sec .abg-num {
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.12em;
  color: var(--cyan);
}

.page-faq .abg-section__title {
  margin: 0;
  font-family: var(--font-head);
  font-weight: 800;
  font-size: clamp(20px, 2.7vw, 30px);
  line-height: 1.25;
  letter-spacing: 0.05em;
  color: var(--mint);
}

.page-faq .faq-sec__lede {
  margin: 0 0 24px;
  max-width: 40em;
  font-size: 15px;
  line-height: 1.85;
  color: var(--slate);
}

.page-faq .faq-more {
  margin: 22px 0 0;
  font-size: 14px;
  line-height: 1.8;
  color: var(--slate);
}

/* ---------- 步骤轨 ---------- */
.page-faq .faq-steptrack {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 14px;
  margin: 0 0 22px;
  padding-bottom: 18px;
  border-bottom: 1px dashed var(--line-soft);
}

.page-faq .faq-steptrack a {
  display: inline-flex;
  align-items: baseline;
  gap: 8px;
  padding: 7px 13px;
  border: 1px solid var(--line);
  font-size: 13px;
  color: var(--mint);
  text-decoration: none;
  transition: background 0.2s var(--ease), border-color 0.2s var(--ease);
}

.page-faq .faq-steptrack a:hover,
.page-faq .faq-steptrack a:focus-visible {
  background: var(--panel);
  border-color: var(--cyan);
}

.page-faq .faq-steptrack .abg-num {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  color: var(--cyan);
}

/* ---------- 步骤列表 ---------- */
.page-faq .faq-steps {
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-faq .faq-steps__item {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 16px;
  padding: 22px 0;
  border-bottom: 1px solid var(--line-soft);
  scroll-margin-top: var(--faq-sticky);
}

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

.page-faq .faq-steps--compact .faq-steps__item {
  padding: 18px 0;
}

.page-faq .faq-steps__num {
  padding-top: 3px;
  font-family: var(--font-mono);
  font-size: 24px;
  line-height: 1;
  color: var(--cyan);
  opacity: 0.85;
}

.page-faq .faq-steps__title {
  margin: 0 0 8px;
  font-size: 16.5px;
  font-weight: 700;
  letter-spacing: 0.04em;
  color: var(--mint);
  line-height: 1.45;
}

.page-faq .faq-steps__body p {
  margin: 0 0 8px;
  max-width: 44em;
  font-size: 15px;
  line-height: 1.78;
  color: var(--mint);
  opacity: 0.86;
}

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

.page-faq .faq-steps__body p.faq-tip {
  margin: 12px 0 0;
  padding: 9px 0 9px 14px;
  border-left: 3px solid var(--cyan);
  max-width: 42em;
  font-size: 13.5px;
  line-height: 1.72;
  color: var(--slate);
  opacity: 1;
}

/* ---------- 图 ---------- */
.page-faq .faq-figure {
  margin: 26px 0 0;
  padding: 10px;
  border: 1px solid var(--line);
  background: var(--reef);
}

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

.page-faq .faq-figure figcaption {
  margin-top: 10px;
  font-family: var(--font-mono);
  font-size: 11.5px;
  line-height: 1.7;
  letter-spacing: 0.06em;
  color: var(--slate);
}

/* ---------- 数字格 ---------- */
.page-faq .faq-facts {
  display: grid;
  grid-template-columns: 1fr;
  margin: 0 0 22px;
  border-top: 1px solid var(--line);
}

.page-faq .faq-facts__cell {
  padding: 18px 16px 18px 0;
  border-bottom: 1px solid var(--line);
}

.page-faq .faq-facts__num {
  margin: 0 0 8px;
  font-family: var(--font-mono);
  font-size: 30px;
  line-height: 1;
  letter-spacing: 0.02em;
  color: var(--cyan);
}

.page-faq .faq-facts__k {
  margin: 0 0 6px;
  font-size: 13.5px;
  font-weight: 700;
  letter-spacing: 0.07em;
  color: var(--mint);
}

.page-faq .faq-facts__d {
  margin: 0;
  max-width: 30em;
  font-size: 13.5px;
  line-height: 1.72;
  color: var(--slate);
}

/* ---------- 折叠补充 ---------- */
.page-faq .faq-item--fold {
  border-top: 1px solid var(--line-soft);
  margin-bottom: 24px;
}

/* ---------- 引文块 ---------- */
.page-faq .faq-quote {
  margin: 26px 0 0;
  padding: 18px 20px;
  border: 1px solid var(--line);
  border-left: 3px solid var(--magenta);
  background: linear-gradient(90deg, rgba(255, 46, 136, 0.09), transparent 72%);
}

.page-faq .faq-quote__t {
  margin: 0 0 8px;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.16em;
  color: var(--magenta);
}

.page-faq .faq-quote p:last-child {
  margin: 0;
  max-width: 42em;
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--mint);
  opacity: 0.86;
}

/* ---------- 阅读顺序行 ---------- */
.page-faq .faq-rows {
  margin: 0;
  padding: 0;
  list-style: none;
  border-top: 1px solid var(--line);
}

.page-faq .faq-rows__item {
  display: grid;
  grid-template-columns: 1fr;
  gap: 6px;
  padding: 16px 0;
  border-bottom: 1px solid var(--line-soft);
}

.page-faq .faq-rows__k {
  font-size: 14px;
  font-weight: 700;
  letter-spacing: 0.05em;
  color: var(--cyan);
}

.page-faq .faq-rows__v {
  max-width: 44em;
  font-size: 14.5px;
  line-height: 1.78;
  color: var(--mint);
  opacity: 0.85;
}

/* ---------- 页底路径 ---------- */
.page-faq .faq-path {
  display: flex;
  overflow-x: auto;
  border: 1px solid var(--line);
  background: var(--reef);
  scrollbar-width: thin;
}

.page-faq .faq-path__cell {
  flex: 0 0 auto;
  width: 250px;
  padding: 18px 20px;
}

.page-faq .faq-path__cell + .faq-path__cell {
  border-left: 1px solid var(--line);
}

.page-faq .faq-path__idx {
  margin: 0 0 8px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--orange);
}

.page-faq .faq-path__t {
  margin: 0 0 8px;
  font-size: 15px;
  font-weight: 700;
  letter-spacing: 0.05em;
  color: var(--mint);
}

.page-faq .faq-path__d {
  margin: 0;
  font-size: 13px;
  line-height: 1.72;
  color: var(--slate);
}

/* ---------- 键值表 ---------- */
.page-faq .faq-kv {
  display: grid;
  margin: 0 0 26px;
  border-top: 1px solid var(--line);
}

.page-faq .faq-kv .abg-kv__item {
  display: grid;
  grid-template-columns: 1fr;
  gap: 4px;
  padding: 12px 0;
  border-bottom: 1px solid var(--line-soft);
}

.page-faq .faq-kv .abg-kv__k {
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.12em;
  color: var(--slate);
}

.page-faq .faq-kv .abg-kv__v {
  font-size: 14.5px;
  line-height: 1.7;
  color: var(--mint);
}

/* ---------- 小标题与清单 ---------- */
.page-faq .faq-sub {
  margin: 0 0 12px;
  font-size: 15px;
  font-weight: 700;
  letter-spacing: 0.06em;
  color: var(--mint);
}

.page-faq .faq-checklist {
  margin: 0;
  padding: 0;
  list-style: none;
  border-top: 1px solid var(--line-soft);
}

.page-faq .faq-checklist li {
  position: relative;
  padding: 11px 0 11px 24px;
  border-bottom: 1px solid var(--line-soft);
  font-size: 14.5px;
  line-height: 1.68;
  color: var(--mint);
  opacity: 0.88;
}

.page-faq .faq-checklist li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 19px;
  width: 8px;
  height: 8px;
  border: 1px solid var(--cyan);
}

.page-faq .faq-foot-note {
  margin: 24px 0 0;
  padding-top: 14px;
  border-top: 1px solid var(--line-soft);
  font-size: 12.5px;
  line-height: 1.75;
  color: var(--slate);
}

/* ---------- 收尾 ---------- */
.page-faq .faq-outro {
  margin-top: clamp(36px, 5vw, 56px);
  padding: clamp(24px, 4vw, 40px);
  border: 1px solid var(--line);
  background:
    radial-gradient(110% 100% at 100% 0%, rgba(255, 159, 28, 0.16), transparent 58%),
    linear-gradient(180deg, var(--panel), var(--reef));
  scroll-margin-top: var(--faq-sticky);
}

.page-faq .faq-outro__label {
  margin: 0 0 10px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.2em;
  color: var(--gold);
}

.page-faq .faq-outro__t {
  margin: 0 0 20px;
  max-width: 30em;
  font-size: clamp(17px, 2.2vw, 22px);
  font-weight: 700;
  line-height: 1.5;
  letter-spacing: 0.04em;
  color: var(--mint);
}

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

/* ---------- 桌面端 ---------- */
@media (min-width: 700px) {
  .page-faq .faq-facts {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-faq .faq-facts__cell {
    padding: 20px 18px 20px 0;
    border-bottom: 0;
  }

  .page-faq .faq-facts__cell + .faq-facts__cell {
    padding-left: 18px;
    border-left: 1px solid var(--line);
  }

  .page-faq .faq-rows__item {
    grid-template-columns: 168px minmax(0, 1fr);
    gap: 24px;
    align-items: baseline;
  }

  .page-faq .faq-kv .abg-kv__item {
    grid-template-columns: 150px minmax(0, 1fr);
    gap: 20px;
    align-items: baseline;
  }
}

@media (min-width: 980px) {
  .page-faq .faq-layout {
    grid-template-columns: var(--faq-rail) minmax(0, 1fr);
    gap: var(--faq-gap);
    align-items: start;
  }

  .page-faq .faq-index {
    position: sticky;
    top: var(--faq-sticky);
    border-top: 0;
    border-left: 1px solid var(--line);
    padding: 0 0 0 18px;
  }

  .page-faq .faq-index__list {
    flex-direction: column;
    flex-wrap: nowrap;
    gap: 0;
  }

  .page-faq .faq-index__list li + li {
    border-top: 1px solid var(--line-soft);
  }

  .page-faq .faq-index__list a {
    padding: 11px 0;
  }

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

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-item__a {
    animation: none;
  }

  .page-faq .faq-item > summary.faq-item__q,
  .page-faq .abg-breadcrumb__item,
  .page-faq .faq-steptrack a,
  .page-faq .faq-index__list a {
    transition: none;
  }
}
<<<END>>>