.page-faq {
  --faq-line: rgba(242, 246, 244, 0.10);
  --faq-hair: rgba(56, 240, 140, 0.28);
  --faq-panel: rgba(11, 58, 46, 0.55);
  --faq-gap: 32px;
  background-color: var(--ink-900);
  background-image:
    linear-gradient(var(--faq-line) 1px, transparent 1px),
    linear-gradient(90deg, var(--faq-line) 1px, transparent 1px);
  background-size: 64px 64px;
  color: var(--white);
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  padding: 28px 0 52px;
  border-bottom: var(--edge) solid var(--grid);
  background:
    radial-gradient(120% 90% at 88% 0%, rgba(56, 240, 140, 0.14), transparent 58%),
    linear-gradient(180deg, rgba(5, 35, 28, 0.92), rgba(7, 11, 10, 0.96));
}

.page-faq .faq-hero__inner {
  display: grid;
  gap: var(--faq-gap);
  align-items: start;
}

.page-faq .faq-hero h1 {
  margin: 14px 0 0;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(1.85rem, 6.4vw, 3.3rem);
  line-height: 1.14;
  letter-spacing: 0.03em;
  text-wrap: balance;
}

.page-faq .faq-hero .lede {
  margin-top: 18px;
  color: var(--text-mid);
  font-size: 1rem;
  line-height: 1.85;
  max-width: 44ch;
}

.page-faq .faq-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 26px;
}

.page-faq .faq-hero__figure {
  margin: 0;
}

.page-faq .faq-hero__figure .figure__img {
  border: var(--edge) solid var(--grid);
  box-shadow: 10px 10px 0 rgba(56, 240, 140, 0.16);
  background: var(--ink-800);
}

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

/* ---------- 主体问答 ---------- */
.page-faq .faq-main {
  padding: 56px 0 64px;
}

.page-faq .faq-main__head {
  max-width: 62ch;
}

.page-faq .faq-main__grid {
  display: grid;
  gap: 28px;
  margin-top: 36px;
}

/* 分组索引 */
.page-faq .faq-track__label {
  margin: 0 0 12px;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--text-dim);
}

.page-faq .faq-track__list {
  display: flex;
  gap: 10px;
  margin: 0;
  padding: 0 0 10px;
  list-style: none;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}

.page-faq .faq-track__link {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  min-height: 44px;
  padding: 10px 14px;
  border: 1px solid var(--grid);
  background: rgba(5, 35, 28, 0.72);
  color: var(--text-mid);
  font-size: 0.9rem;
  line-height: 1.3;
  white-space: nowrap;
  text-decoration: none;
  transition: border-color 240ms var(--ease), color 240ms var(--ease), background 240ms var(--ease);
}

.page-faq .faq-track__link .num {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  color: var(--neon);
}

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

.page-faq .faq-track__link:focus-visible {
  outline: 2px solid var(--neon-soft);
  outline-offset: 2px;
}

/* 问题组 */
.page-faq .faq-groups {
  display: grid;
  gap: 40px;
  min-width: 0;
}

.page-faq .faq-group__head {
  padding-bottom: 14px;
  border-bottom: var(--edge) solid var(--faq-hair);
}

.page-faq .faq-group__no {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.76rem;
  letter-spacing: 0.14em;
  color: var(--neon);
}

.page-faq .faq-group__title {
  margin: 8px 0 6px;
  font-family: var(--font-display);
  font-size: 1.32rem;
  font-weight: 700;
  letter-spacing: 0.02em;
  color: var(--white);
}

.page-faq .faq-group__sum {
  margin: 0;
  color: var(--text-dim);
  font-size: 0.9rem;
  line-height: 1.7;
}

/* 折叠问答 */
.page-faq .qa {
  border-bottom: 1px solid var(--faq-line);
}

.page-faq .qa[open] {
  background: linear-gradient(90deg, var(--faq-panel), transparent 72%);
}

.page-faq .qa__q {
  display: flex;
  align-items: baseline;
  gap: 12px;
  padding: 18px 4px;
  cursor: pointer;
  list-style: none;
  font-family: var(--font-body);
  font-size: 1rem;
  font-weight: 600;
  line-height: 1.55;
  color: var(--white);
  transition: color 220ms var(--ease);
}

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

.page-faq .qa__q:hover {
  color: var(--neon-soft);
}

.page-faq .qa__q:focus-visible {
  outline: 2px solid var(--neon-soft);
  outline-offset: -2px;
}

.page-faq .qa__no {
  flex: none;
  padding-top: 3px;
  font-family: var(--font-mono);
  font-size: 0.74rem;
  letter-spacing: 0.08em;
  color: var(--neon);
}

.page-faq .qa__label {
  flex: 1 1 auto;
}

.page-faq .qa__q::after {
  content: "+";
  flex: none;
  margin-left: 8px;
  font-family: var(--font-mono);
  font-size: 1.15rem;
  line-height: 1;
  color: var(--neon);
}

.page-faq .qa[open] .qa__q::after {
  content: "−";
}

.page-faq .qa__a {
  padding: 0 4px 20px 30px;
}

.page-faq .qa__a p {
  margin: 0;
  color: var(--text-mid);
  font-size: 0.95rem;
  line-height: 1.85;
}

.page-faq .qa__a a {
  color: var(--blue);
  text-decoration: none;
  border-bottom: 1px solid rgba(63, 169, 255, 0.5);
}

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

/* ---------- 两端分工 ---------- */
.page-faq .faq-compare {
  padding: 56px 0 60px;
  border-top: var(--edge) solid var(--grid);
  border-bottom: var(--edge) solid var(--grid);
  background:
    linear-gradient(160deg, rgba(59, 42, 107, 0.42), rgba(5, 35, 28, 0.9) 62%),
    var(--ink-900);
}

.page-faq .faq-compare__layout {
  display: grid;
  gap: 22px;
  margin-top: 34px;
}

.page-faq .faq-compare__cols {
  display: grid;
  border: var(--edge) solid var(--grid);
  background: rgba(7, 11, 10, 0.55);
  box-shadow: 8px 8px 0 rgba(0, 0, 0, 0.35);
}

.page-faq .faq-side {
  padding: 24px 20px 26px;
}

.page-faq .faq-side + .faq-side {
  border-top: 1px solid var(--grid);
}

.page-faq .faq-side--mobile {
  border-top: 3px solid var(--neon);
}

.page-faq .faq-side--desktop {
  border-top: 3px solid var(--blue);
}

.page-faq .faq-side__tag {
  margin-bottom: 16px;
}

.page-faq .faq-side__list {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 14px;
}

.page-faq .faq-side__list li {
  position: relative;
  padding-left: 18px;
  color: var(--text-mid);
  font-size: 0.93rem;
  line-height: 1.75;
}

.page-faq .faq-side__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.62em;
  width: 8px;
  height: 2px;
  background: var(--neon);
}

.page-faq .faq-side--desktop .faq-side__list li::before {
  background: var(--blue);
}

.page-faq .faq-sync {
  padding: 22px 20px;
  border: 1px dashed var(--faq-hair);
  background: rgba(56, 240, 140, 0.05);
}

.page-faq .faq-sync__title {
  margin: 0 0 16px;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--neon);
}

.page-faq .faq-sync__list {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 12px;
}

.page-faq .faq-sync__list li {
  display: grid;
  gap: 4px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--faq-line);
}

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

.page-faq .faq-sync__key {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.12em;
  color: var(--text-dim);
}

.page-faq .faq-sync__val {
  color: var(--white);
  font-size: 0.92rem;
  line-height: 1.7;
}

.page-faq .faq-compare__figure {
  margin: 30px 0 0;
}

.page-faq .faq-compare__figure .figure__img {
  border: var(--edge) solid var(--grid);
  overflow: hidden;
  background: var(--ink-800);
}

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

.page-faq .faq-compare__figure .figure__caption {
  margin-top: 12px;
  color: var(--text-dim);
  font-size: 0.84rem;
  line-height: 1.65;
}

/* ---------- 字段速查 ---------- */
.page-faq .faq-fields {
  padding: 56px 0 60px;
}

.page-faq .faq-fields__list {
  display: grid;
  gap: 0;
  margin: 34px 0 0;
  border-top: var(--edge) solid var(--grid);
}

.page-faq .faq-field {
  display: grid;
  gap: 10px;
  padding: 20px 0 20px 16px;
  border-bottom: 1px solid var(--faq-line);
  border-left: 2px solid transparent;
  transition: border-left-color 240ms var(--ease), background 240ms var(--ease);
}

.page-faq .faq-field:hover,
.page-faq .faq-field:focus-visible {
  border-left-color: var(--neon);
  background: linear-gradient(90deg, rgba(56, 240, 140, 0.07), transparent 70%);
}

.page-faq .faq-field:focus-visible {
  outline: 2px solid var(--neon-soft);
  outline-offset: 2px;
}

.page-faq .faq-field__term {
  margin: 0;
}

.page-faq .faq-field__desc {
  margin: 0;
  max-width: 62ch;
  color: var(--text-mid);
  font-size: 0.94rem;
  line-height: 1.8;
}

/* ---------- 旧版资料 ---------- */
.page-faq .faq-archive {
  padding: 52px 0 60px;
  border-top: var(--edge) solid var(--grid);
  background: linear-gradient(200deg, rgba(122, 31, 61, 0.34), rgba(7, 11, 10, 0.9) 68%);
}

.page-faq .faq-archive__panel {
  display: grid;
  gap: 26px;
  padding: 26px 20px 28px;
  border: var(--edge) solid var(--grid);
  background: rgba(7, 11, 10, 0.6);
  box-shadow: 10px 10px 0 rgba(122, 31, 61, 0.28);
}

.page-faq .faq-archive__title {
  margin-top: 10px;
}

.page-faq .faq-steps {
  margin: 24px 0 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 18px;
}

.page-faq .faq-steps__item {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 14px;
  align-items: start;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--faq-line);
}

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

.page-faq .faq-steps__no {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.1em;
  color: var(--orange);
  padding-top: 3px;
}

.page-faq .faq-steps__item p {
  margin: 0;
  color: var(--text-mid);
  font-size: 0.94rem;
  line-height: 1.8;
}

.page-faq .faq-archive__note {
  padding: 20px;
  border-left: 3px solid var(--orange);
  background: rgba(255, 122, 47, 0.07);
}

.page-faq .faq-archive__note-label {
  margin: 0 0 12px;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--orange);
}

.page-faq .faq-archive__note-text {
  margin: 0 0 12px;
  color: var(--text-mid);
  font-size: 0.9rem;
  line-height: 1.8;
}

.page-faq .faq-archive__note-text:last-of-type {
  margin-bottom: 18px;
}

/* ---------- 还需要帮助 ---------- */
.page-faq .faq-help {
  padding: 52px 0 72px;
}

.page-faq .faq-help__box {
  display: grid;
  gap: 24px;
  padding: 28px 20px 30px;
  border: var(--edge) solid var(--neon);
  background: linear-gradient(140deg, rgba(5, 35, 28, 0.95), rgba(7, 11, 10, 0.9));
  box-shadow: 12px 12px 0 rgba(56, 240, 140, 0.18);
}

.page-faq .faq-help__title {
  margin-top: 10px;
}

.page-faq .faq-help__text {
  margin: 16px 0 0;
  max-width: 60ch;
  color: var(--text-mid);
  font-size: 0.95rem;
  line-height: 1.85;
}

.page-faq .faq-help__text a {
  color: var(--neon);
  text-decoration: none;
  border-bottom: 1px solid rgba(56, 240, 140, 0.5);
  word-break: break-all;
}

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

.page-faq .faq-help__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  align-content: start;
}

/* ---------- 响应式 ---------- */
@media (min-width: 720px) {
  .page-faq .faq-hero {
    padding: 40px 0 64px;
  }

  .page-faq .faq-compare__layout {
    grid-template-columns: minmax(0, 1.35fr) minmax(0, 0.85fr);
    align-items: start;
    gap: 24px;
  }

  .page-faq .faq-sync {
    margin-top: 0;
  }

  .page-faq .faq-archive__panel {
    grid-template-columns: minmax(0, 1.5fr) minmax(0, 1fr);
    padding: 32px 28px 34px;
    gap: 32px;
    align-items: start;
  }

  .page-faq .faq-help__box {
    grid-template-columns: minmax(0, 1.6fr) auto;
    align-items: center;
    padding: 34px 30px;
    gap: 32px;
  }

  .page-faq .faq-help__actions {
    flex-direction: column;
    min-width: 180px;
  }

  .page-faq .faq-help__actions .btn {
    width: 100%;
    justify-content: center;
  }
}

@media (min-width: 760px) {
  .page-faq .faq-compare__cols {
    grid-template-columns: 1fr 1fr;
  }

  .page-faq .faq-side + .faq-side {
    border-top: 0;
    border-left: 1px solid var(--grid);
  }
}

@media (min-width: 900px) {
  .page-faq .faq-hero__inner {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, 0.85fr);
    gap: 44px;
  }

  .page-faq .faq-main__grid {
    grid-template-columns: 208px minmax(0, 1fr);
    gap: 52px;
    align-items: start;
  }

  .page-faq .faq-track {
    position: sticky;
    top: 96px;
    align-self: start;
  }

  .page-faq .faq-track__label {
    margin-bottom: 16px;
  }

  .page-faq .faq-track__list {
    flex-direction: column;
    gap: 0;
    overflow: visible;
    padding: 0;
    border-top: 1px solid var(--faq-line);
  }

  .page-faq .faq-track__link {
    width: 100%;
    border: 0;
    border-bottom: 1px solid var(--faq-line);
    border-left: 3px solid transparent;
    background: transparent;
    padding: 13px 8px 13px 12px;
    white-space: normal;
    line-height: 1.4;
  }

  .page-faq .faq-track__link:hover,
  .page-faq .faq-track__link:focus-visible {
    border-left-color: var(--neon-soft);
    background: rgba(56, 240, 140, 0.07);
  }

  .page-faq .faq-track__link[aria-current="true"] {
    border-left-color: var(--neon);
    color: var(--white);
    background: rgba(56, 240, 140, 0.1);
  }

  .page-faq .faq-groups {
    gap: 48px;
    max-width: 70ch;
  }

  .page-faq .faq-group__title {
    font-size: 1.5rem;
  }

  .page-faq .qa__q {
    font-size: 1.05rem;
    padding: 20px 4px;
  }

  .page-faq .qa__a {
    padding-left: 34px;
    padding-bottom: 24px;
  }

  .page-faq .faq-field {
    grid-template-columns: 190px minmax(0, 1fr);
    gap: 24px;
    align-items: baseline;
    padding: 22px 0 22px 18px;
  }

  .page-faq .faq-field__desc {
    max-width: none;
  }
}

@media (min-width: 1140px) {
  .page-faq .faq-hero h1 {
    font-size: 3.5rem;
  }

  .page-faq .faq-hero .lede {
    font-size: 1.05rem;
  }

  .page-faq .faq-hero__inner {
    gap: 56px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-track__link,
  .page-faq .qa__q,
  .page-faq .faq-field {
    transition: none;
  }
}
<<<END>>>