.page-faq {
  --faq-radius: 18px 6px 18px 6px;
  --faq-chip-radius: 12px 4px 12px 4px;
  --faq-line: var(--c-line);
  background: var(--c-snow);
  color: var(--c-text);
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  padding: clamp(1.1rem, 3vw, 1.8rem) 0 clamp(2.4rem, 6vw, 4.2rem);
  color: var(--c-text-on-dark);
  background:
    radial-gradient(92% 82% at 8% -12%, rgba(29, 111, 165, .62), transparent 62%),
    radial-gradient(72% 64% at 96% 4%, rgba(178, 108, 255, .26), transparent 64%),
    linear-gradient(178deg, var(--c-ink-900) 0%, var(--c-ink-800) 100%);
  border-radius: 0 0 46px 12px;
}

.page-faq .faq-hero::after {
  content: "";
  position: absolute;
  right: -12%;
  bottom: -34%;
  left: 38%;
  height: 66%;
  z-index: -1;
  pointer-events: none;
  background:
    repeating-linear-gradient(116deg, transparent 0 22px, rgba(95, 211, 232, .08) 22px 23px),
    repeating-linear-gradient(64deg, transparent 0 34px, rgba(95, 211, 232, .05) 34px 35px);
  opacity: .9;
}

.page-faq .faq-hero .breadcrumb {
  margin-bottom: clamp(1.2rem, 3vw, 2rem);
}

.page-faq .faq-hero__grid {
  display: grid;
  gap: clamp(1.4rem, 3vw, 2.6rem);
}

.page-faq .faq-hero__title {
  margin: .5rem 0 0;
  letter-spacing: -.02em;
  line-height: 1.06;
}

.page-faq .faq-hero__lede {
  margin-top: 1rem;
  max-width: 46ch;
  color: var(--c-text-on-dark-soft);
}

.page-faq .faq-hero__stats {
  display: flex;
  flex-wrap: wrap;
  gap: .7rem 1.6rem;
  margin: 1.6rem 0 0;
  padding: 1rem 0 0;
  list-style: none;
  border-top: 1px solid var(--c-line-dark);
}

.page-faq .faq-hero__stat {
  display: flex;
  flex-direction: column;
  gap: .1rem;
}

.page-faq .faq-hero__stat b {
  font-family: var(--font-mono);
  font-size: 1.3rem;
  font-weight: 700;
  line-height: 1.1;
  color: var(--c-ice-300);
}

.page-faq .faq-hero__stat span {
  font-size: var(--fs-xs);
  letter-spacing: .04em;
  color: var(--c-text-on-dark-soft);
}

.page-faq .faq-hero__visual {
  display: flex;
  justify-content: center;
}

.page-faq .faq-hero__dial {
  width: min(100%, 320px);
  height: auto;
}

.page-faq .faq-hero__chips {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: .5rem;
  margin-top: clamp(1.6rem, 4vw, 2.4rem);
}

.page-faq .faq-hero__chips-label {
  font-size: var(--fs-xs);
  letter-spacing: .12em;
  color: var(--c-ice-300);
  margin-right: .2rem;
}

.page-faq .faq-chip {
  display: inline-flex;
  align-items: center;
  padding: .42rem .82rem;
  font-size: var(--fs-sm);
  text-decoration: none;
  color: var(--c-text-on-dark);
  border: 1px solid var(--c-line-dark);
  border-radius: var(--faq-chip-radius);
  background: rgba(234, 247, 251, .04);
  transition: border-color .2s ease, background-color .2s ease, transform .2s ease;
}

.page-faq .faq-chip:hover,
.page-faq .faq-chip:focus-visible {
  border-color: var(--c-ice-300);
  background: rgba(95, 211, 232, .14);
  transform: translateY(-1px);
}

/* ---------- 通用小标题 ---------- */
.page-faq .faq-section-head {
  max-width: 62ch;
  margin-bottom: clamp(1.4rem, 3vw, 2.2rem);
}

.page-faq .faq-section-head__title {
  margin: .4rem 0 .6rem;
  letter-spacing: -.01em;
}

.page-faq .faq-section-head__sub {
  margin: 0;
  color: var(--c-text-soft);
}

/* ---------- 六步 ---------- */
.page-faq .faq-steps {
  padding: clamp(2.4rem, 5vw, 4rem) 0;
}

.page-faq .faq-steps__list {
  display: grid;
  gap: .9rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-faq .faq-step {
  position: relative;
  padding: 1rem 1.05rem 1.15rem;
  background: var(--c-surface);
  border: 1px solid var(--faq-line);
  border-radius: var(--faq-radius);
  box-shadow: 0 16px 34px -30px rgba(6, 26, 46, .9);
  transition: transform .22s ease, box-shadow .22s ease;
}

.page-faq .faq-step::before {
  content: "";
  position: absolute;
  top: 0;
  left: 1.05rem;
  width: 34px;
  height: 3px;
  border-radius: 0 0 3px 3px;
  background: linear-gradient(90deg, var(--c-ice-300), var(--c-violet-500));
}

.page-faq .faq-step:hover {
  transform: translateY(-2px);
  box-shadow: 0 22px 42px -32px rgba(6, 26, 46, .95);
}

.page-faq .faq-step__num {
  display: block;
  font-size: var(--fs-xs);
  letter-spacing: .14em;
  color: var(--c-ice-600);
}

.page-faq .faq-step__name {
  margin: .35rem 0 .4rem;
  font-size: 1.02rem;
  letter-spacing: -.01em;
}

.page-faq .faq-step__text {
  margin: 0;
  font-size: var(--fs-sm);
  line-height: 1.7;
  color: var(--c-text-soft);
}

.page-faq .faq-steps__figure {
  margin: clamp(1.6rem, 4vw, 2.4rem) 0 0;
}

/* ---------- 主题问答 ---------- */
.page-faq .faq-topics {
  padding: clamp(2.4rem, 5vw, 4rem) 0;
  background: var(--c-surface);
  border-top: 1px solid var(--faq-line);
  border-bottom: 1px solid var(--faq-line);
}

.page-faq .faq-topics__grid {
  gap: clamp(1.4rem, 3vw, 2.4rem);
}

.page-faq .faq-index {
  padding: .9rem;
  background: linear-gradient(160deg, rgba(29, 111, 165, .08), rgba(95, 211, 232, .04));
  border: 1px solid var(--faq-line);
  border-radius: var(--faq-radius);
}

.page-faq .faq-index__title {
  margin: 0 0 .6rem;
  font-size: var(--fs-xs);
  letter-spacing: .14em;
  color: var(--c-ice-600);
}

.page-faq .faq-index__list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: .35rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-faq .faq-index__link {
  display: flex;
  align-items: baseline;
  gap: .45rem;
  padding: .48rem .6rem;
  font-size: var(--fs-sm);
  text-decoration: none;
  color: var(--c-text-soft);
  border: 1px solid transparent;
  border-radius: 10px 3px 10px 3px;
  transition: color .2s ease, background-color .2s ease, border-color .2s ease;
}

.page-faq .faq-index__link .mono {
  font-size: var(--fs-xs);
  color: var(--c-ice-600);
}

.page-faq .faq-index__link:hover,
.page-faq .faq-index__link:focus-visible {
  color: var(--c-ink-900);
  border-color: var(--faq-line);
  background: var(--c-surface);
}

.page-faq .faq-group {
  margin-bottom: clamp(1.4rem, 3vw, 2rem);
  scroll-margin-top: 6rem;
}

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

.page-faq .faq-group__title {
  display: flex;
  align-items: baseline;
  gap: .55rem;
  margin: 0 0 .7rem;
  font-size: var(--fs-h3);
  color: var(--c-ink-900);
}

.page-faq .faq-group__title .mono {
  font-size: var(--fs-xs);
  letter-spacing: .1em;
  color: var(--c-ice-600);
}

/* ---------- 折叠问答 ---------- */
.page-faq .faq-q {
  margin-bottom: .55rem;
  background: var(--c-surface);
  border: 1px solid var(--faq-line);
  border-radius: 14px 5px 14px 5px;
  overflow: hidden;
  transition: border-color .2s ease, box-shadow .2s ease;
}

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

.page-faq .faq-q[open] {
  border-color: rgba(29, 111, 165, .38);
  box-shadow: 0 14px 30px -28px rgba(6, 26, 46, .9);
}

.page-faq .faq-q summary {
  position: relative;
  padding: .88rem 2.5rem .88rem 1rem;
  font-weight: 600;
  font-size: var(--fs-body);
  line-height: 1.6;
  color: var(--c-ink-900);
  cursor: pointer;
  list-style: none;
}

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

.page-faq .faq-q summary::after {
  content: "+";
  position: absolute;
  top: 50%;
  right: 1rem;
  transform: translateY(-50%);
  font-family: var(--font-mono);
  font-size: 1.2rem;
  line-height: 1;
  color: var(--c-ice-600);
  transition: transform .24s ease, color .24s ease;
}

.page-faq .faq-q[open] summary::after {
  transform: translateY(-50%) rotate(45deg);
  color: var(--c-violet-500);
}

.page-faq .faq-q summary:focus-visible {
  outline: 2px solid var(--c-ice-300);
  outline-offset: -2px;
}

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

.page-faq .faq-q__a p {
  margin: .7rem 0 0;
  font-size: var(--fs-sm);
  line-height: 1.75;
  color: var(--c-text-soft);
}

/* ---------- 自查 ---------- */
.page-faq .faq-selfcheck {
  padding: clamp(2.4rem, 5vw, 4rem) 0;
  background:
    radial-gradient(80% 60% at 4% 0%, rgba(95, 211, 232, .16), transparent 60%),
    var(--c-snow);
}

.page-faq .faq-selfcheck__grid {
  gap: clamp(1.4rem, 3vw, 2.4rem);
}

.page-faq .faq-selfcheck__title {
  margin: .4rem 0 .6rem;
}

.page-faq .faq-selfcheck__intro {
  margin: 0 0 1.4rem;
  max-width: 52ch;
  color: var(--c-text-soft);
}

.page-faq .faq-selfcheck__list {
  display: grid;
  gap: .8rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-faq .faq-selfcheck__item {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: .85rem;
  padding: 1rem 1.05rem;
  background: var(--c-surface);
  border: 1px solid var(--faq-line);
  border-radius: 16px 5px 16px 5px;
}

.page-faq .faq-selfcheck__badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 2rem;
  height: 2rem;
  font-size: var(--fs-sm);
  font-weight: 700;
  color: var(--c-snow);
  background: linear-gradient(150deg, var(--c-ice-600), var(--c-teal-800));
  border-radius: 50% 42% 50% 42%;
}

.page-faq .faq-selfcheck__name {
  margin: 0 0 .3rem;
  font-size: 1.02rem;
  color: var(--c-ink-900);
}

.page-faq .faq-selfcheck__item p {
  margin: 0;
  font-size: var(--fs-sm);
  line-height: 1.7;
  color: var(--c-text-soft);
}

.page-faq .faq-selfcheck__note {
  margin: 1.2rem 0 0;
  padding: .9rem 1rem;
  font-size: var(--fs-sm);
  line-height: 1.7;
  color: var(--c-ink-900);
  background: rgba(242, 184, 75, .14);
  border-left: 3px solid var(--c-amber-400);
  border-radius: 0 12px 12px 0;
}

.page-faq .faq-selfcheck__note a {
  color: var(--c-ice-600);
  text-decoration: underline;
  text-underline-offset: 3px;
}

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

/* ---------- 企业 ---------- */
.page-faq .faq-biz {
  padding: clamp(2.2rem, 4.5vw, 3.6rem) 0;
  background: var(--c-snow);
}

.page-faq .faq-biz__panel {
  padding: clamp(1.5rem, 4vw, 2.6rem);
}

.page-faq .faq-biz__title {
  margin: .5rem 0 .7rem;
}

.page-faq .faq-biz__lede {
  max-width: 56ch;
  margin: 0 0 1.4rem;
  color: var(--c-text-on-dark-soft);
}

.page-faq .faq-biz__grid {
  display: grid;
  gap: .6rem;
}

.page-faq .faq-q--ink {
  background: rgba(234, 247, 251, .05);
  border-color: var(--c-line-dark);
}

.page-faq .faq-q--ink summary {
  color: var(--c-text-on-dark);
}

.page-faq .faq-q--ink summary::after {
  color: var(--c-ice-300);
}

.page-faq .faq-q--ink[open] {
  border-color: rgba(95, 211, 232, .5);
  box-shadow: none;
}

.page-faq .faq-q--ink .faq-q__a {
  border-top-color: var(--c-line-dark);
}

.page-faq .faq-q--ink .faq-q__a p {
  color: var(--c-text-on-dark-soft);
}

.page-faq .faq-biz__actions {
  display: flex;
  flex-wrap: wrap;
  gap: .6rem;
  margin-top: 1.4rem;
}

/* ---------- 版本 ---------- */
.page-faq .faq-version {
  padding: clamp(2.4rem, 5vw, 4rem) 0;
  background: var(--c-surface);
  border-top: 1px solid var(--faq-line);
}

.page-faq .faq-version__grid {
  display: grid;
  gap: clamp(1.4rem, 3vw, 2.4rem);
}

.page-faq .faq-version__title {
  margin: .4rem 0 .7rem;
}

.page-faq .faq-version__copy p {
  margin: 0 0 .9rem;
  max-width: 54ch;
  color: var(--c-text-soft);
  line-height: 1.75;
}

.page-faq .faq-version__copy a {
  color: var(--c-ice-600);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.page-faq .faq-version__card {
  padding: 1.2rem 1.3rem 1.35rem;
  background:
    radial-gradient(90% 80% at 100% 0%, rgba(242, 184, 75, .16), transparent 62%),
    linear-gradient(160deg, rgba(11, 43, 74, .96), rgba(6, 26, 46, .98));
  color: var(--c-text-on-dark);
  border-radius: 24px 6px 24px 6px;
  box-shadow: var(--shadow-panel);
}

.page-faq .faq-version__card-label {
  margin: 0;
  font-size: var(--fs-xs);
  letter-spacing: .14em;
  color: var(--c-ice-300);
}

.page-faq .faq-version__card-num {
  margin: .35rem 0 1rem;
  font-family: var(--font-mono);
  font-size: clamp(1.6rem, 4vw, 2.1rem);
  font-weight: 700;
  letter-spacing: -.02em;
  color: var(--c-amber-400);
}

.page-faq .faq-version__list {
  display: grid;
  gap: .5rem;
  margin: 0;
  padding: 0;
  list-style: none;
  font-size: var(--fs-sm);
  color: var(--c-text-on-dark-soft);
}

.page-faq .faq-version__list li {
  display: flex;
  align-items: baseline;
  gap: .55rem;
  padding-bottom: .5rem;
  border-bottom: 1px solid var(--c-line-dark);
}

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

.page-faq .faq-version__list .mono {
  min-width: 2.6rem;
  font-size: 1rem;
  font-weight: 700;
  color: var(--c-ice-300);
}

/* ---------- 联系 ---------- */
.page-faq .faq-help {
  padding: clamp(2.4rem, 5vw, 4rem) 0 clamp(2.8rem, 6vw, 4.6rem);
  color: var(--c-text-on-dark);
  background:
    radial-gradient(86% 70% at 90% 6%, rgba(178, 108, 255, .24), transparent 62%),
    linear-gradient(180deg, var(--c-ink-800), var(--c-ink-900));
  border-radius: 46px 12px 0 0;
}

.page-faq .faq-help__grid {
  display: grid;
  gap: clamp(1.6rem, 3.5vw, 2.6rem);
}

.page-faq .faq-help__title {
  margin: .4rem 0 .7rem;
  color: var(--c-text-on-dark);
}

.page-faq .faq-help__copy p {
  max-width: 46ch;
  margin: 0 0 1.2rem;
  color: var(--c-text-on-dark-soft);
  line-height: 1.75;
}

.page-faq .faq-help__actions {
  display: flex;
  flex-wrap: wrap;
  gap: .6rem;
  align-items: center;
}

.page-faq .faq-help__contacts {
  display: grid;
  gap: .7rem;
  margin: 0;
  padding: 1.1rem 1.2rem;
  list-style: none;
  background: rgba(234, 247, 251, .05);
  border: 1px solid var(--c-line-dark);
  border-radius: 22px 6px 22px 6px;
}

.page-faq .faq-help__contacts .contact-row {
  display: grid;
  gap: .2rem;
  padding-bottom: .7rem;
  border-bottom: 1px solid var(--c-line-dark);
}

.page-faq .faq-help__contacts .contact-row:last-child {
  padding-bottom: 0;
  border-bottom: 0;
}

.page-faq .faq-help__contacts .contact-row__key {
  font-size: var(--fs-xs);
  letter-spacing: .1em;
  color: var(--c-ice-300);
}

.page-faq .faq-help__contacts .contact-row__val {
  font-size: var(--fs-sm);
  line-height: 1.6;
  color: var(--c-text-on-dark);
  word-break: break-word;
}

.page-faq .faq-help__contacts .contact-row__val--mono {
  font-family: var(--font-mono);
  letter-spacing: .01em;
}

/* ---------- 响应式 ---------- */
@media (min-width: 560px) {
  .page-faq .faq-steps__list {
    grid-template-columns: repeat(auto-fit, minmax(168px, 1fr));
  }

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

@media (min-width: 760px) {
  .page-faq .faq-hero__grid {
    grid-template-columns: minmax(0, 1.12fr) minmax(0, .88fr);
    align-items: center;
  }

  .page-faq .faq-hero__visual {
    justify-content: flex-end;
  }

  .page-faq .faq-version__grid {
    grid-template-columns: minmax(0, 1.35fr) minmax(0, .65fr);
    align-items: start;
  }

  .page-faq .faq-help__grid {
    grid-template-columns: minmax(0, 1fr) minmax(0, .9fr);
    align-items: start;
  }
}

@media (min-width: 900px) {
  .page-faq .faq-index {
    position: sticky;
    top: 5.5rem;
    align-self: start;
  }

  .page-faq .faq-index__list {
    grid-template-columns: 1fr;
  }

  .page-faq .faq-selfcheck__item {
    padding: 1.15rem 1.25rem;
  }
}

@media (min-width: 1080px) {
  .page-faq .faq-steps__list {
    grid-template-columns: repeat(6, minmax(0, 1fr));
  }

  .page-faq .faq-step {
    padding: .9rem .85rem 1rem;
  }

  .page-faq .faq-step__text {
    font-size: .8rem;
    line-height: 1.65;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-chip,
  .page-faq .faq-step,
  .page-faq .faq-q summary::after,
  .page-faq .faq-index__link {
    transition: none;
  }

  .page-faq .faq-chip:hover,
  .page-faq .faq-step:hover {
    transform: none;
  }
}
<<<END>>>