.page-faq {
  --faq-rail: 2.5rem;
  --faq-gap: clamp(1.75rem, 4vw, 3rem);
  --faq-line: rgba(67, 240, 207, .28);
  background: var(--paper);
  color: var(--ink-900);
}

.page-faq .page-faq__crumbs {
  padding-top: clamp(1rem, 3vw, 1.75rem);
}

.page-faq .breadcrumbs__link {
  color: var(--slate);
  text-decoration: none;
}

.page-faq .breadcrumbs__link:hover {
  color: var(--cyan-deep);
}

.page-faq .breadcrumbs__sep,
.page-faq .breadcrumbs__current {
  color: var(--mist);
}

.page-faq .faq-hero {
  margin-top: clamp(1rem, 3vw, 1.75rem);
  padding: clamp(2.25rem, 6vw, 4rem) 0 clamp(2rem, 5vw, 3.25rem);
  background:
    radial-gradient(115% 95% at 50% -35%, rgba(67, 240, 207, .3), transparent 62%),
    linear-gradient(178deg, var(--ice) 0%, rgba(207, 239, 245, .35) 46%, var(--paper) 100%);
  border-bottom: 1px solid rgba(11, 42, 37, .08);
}

.page-faq .faq-hero__inner {
  max-width: 46rem;
  text-align: center;
}

.page-faq .faq-hero .eyebrow {
  display: inline-block;
  margin: 0 0 .9rem;
  padding: .3rem .8rem;
  border-radius: 999px;
  background: var(--ink-900);
  color: var(--cyan);
  font-size: .75rem;
  letter-spacing: .14em;
  font-family: var(--font-mono);
}

.page-faq .faq-hero__title {
  margin: 0 0 1rem;
  font-family: var(--font-display);
  font-size: clamp(1.85rem, 5.4vw, 3.05rem);
  font-weight: 800;
  line-height: 1.16;
  letter-spacing: -.02em;
  color: var(--ink-900);
}

.page-faq .faq-hero__lede {
  margin: 0 auto;
  max-width: 36rem;
  font-size: clamp(.98rem, 1.6vw, 1.1rem);
  line-height: 1.8;
  color: var(--slate);
}

.page-faq .faq-hero__chips {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: .5rem;
  margin: 1.5rem 0 0;
  padding: 0;
  list-style: none;
}

.page-faq .faq-hero__chip {
  padding: .38rem .85rem;
  border-radius: 999px;
  border: 1px solid rgba(11, 42, 37, .14);
  background: rgba(245, 251, 248, .78);
  color: var(--slate);
  font-size: .82rem;
  line-height: 1.5;
}

.page-faq .faq-layout {
  display: grid;
  gap: clamp(1.5rem, 4vw, 3.25rem);
  padding-top: clamp(2rem, 5vw, 3.5rem);
  padding-bottom: clamp(2.5rem, 6vw, 4.5rem);
}

/* 步骤索引 */
.page-faq .faq-index {
  padding: 1.1rem 1.15rem;
  border-radius: var(--radius-md);
  border: 1px solid rgba(11, 42, 37, .1);
  background: linear-gradient(160deg, rgba(207, 239, 245, .62), rgba(245, 251, 248, .9));
}

.page-faq .faq-index__title {
  margin: 0 0 .7rem;
  font-family: var(--font-mono);
  font-size: .72rem;
  letter-spacing: .18em;
  color: var(--cyan-deep);
}

.page-faq .faq-index__list {
  display: flex;
  flex-wrap: wrap;
  gap: .4rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-faq .faq-index__link {
  display: inline-flex;
  align-items: baseline;
  gap: .4rem;
  padding: .4rem .7rem;
  border-radius: 999px;
  background: rgba(245, 251, 248, .9);
  color: var(--ink-900);
  font-size: .85rem;
  line-height: 1.4;
  text-decoration: none;
  transition: background .2s var(--ease), color .2s var(--ease);
}

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

.page-faq .faq-index__num {
  font-family: var(--font-mono);
  font-size: .72rem;
  color: var(--mist);
}

.page-faq .faq-index__link:hover .faq-index__num,
.page-faq .faq-index__link:focus-visible .faq-index__num {
  color: var(--orange);
}

.page-faq .faq-index__hint {
  margin: .9rem 0 0;
  font-size: .8rem;
  line-height: 1.65;
  color: var(--mist);
}

/* 步骤时间线 */
.page-faq .faq-steps {
  position: relative;
  min-width: 0;
}

.page-faq .step {
  position: relative;
  padding-left: var(--faq-rail);
  padding-bottom: var(--faq-gap);
  scroll-margin-top: 5rem;
}

.page-faq .step:last-of-type {
  padding-bottom: 0;
}

.page-faq .step::before {
  content: "";
  position: absolute;
  left: calc(.75rem - 1px);
  top: 2rem;
  bottom: .5rem;
  width: 2px;
  background: linear-gradient(180deg, rgba(67, 240, 207, .8), rgba(67, 240, 207, .06));
}

.page-faq .step:last-of-type::before {
  display: none;
}

.page-faq .step__num {
  position: absolute;
  left: 0;
  top: .05rem;
  width: 1.5rem;
  height: 1.5rem;
  display: grid;
  place-items: center;
  border-radius: 50%;
  background: var(--ink-900);
  color: var(--cyan);
  font-family: var(--font-mono);
  font-size: .68rem;
  letter-spacing: .01em;
  box-shadow: 0 0 0 4px rgba(67, 240, 207, .18);
}

.page-faq .step__title {
  margin: 0 0 .6rem;
  font-family: var(--font-display);
  font-size: clamp(1.22rem, 3vw, 1.6rem);
  font-weight: 800;
  line-height: 1.35;
  letter-spacing: -.01em;
  color: var(--ink-900);
}

.page-faq .step__lede {
  margin: 0;
  font-size: .98rem;
  line-height: 1.8;
  color: var(--slate);
}

.page-faq .step__note {
  margin: 1rem 0 0;
  padding: .85rem 1rem;
  border-left: 3px solid var(--cyan);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  background: rgba(207, 239, 245, .5);
  font-size: .9rem;
  line-height: 1.75;
  color: var(--slate);
}

.page-faq .text-link {
  color: var(--cyan-deep);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.page-faq .text-link:hover {
  color: var(--orange);
}

/* 有序操作步骤 */
.page-faq .step__list {
  counter-reset: faqstep;
  margin: 1.15rem 0 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: .8rem;
}

.page-faq .step__list > li {
  position: relative;
  padding-left: 2.15rem;
  font-size: .95rem;
  line-height: 1.78;
  color: var(--slate);
}

.page-faq .step__list > li::before {
  counter-increment: faqstep;
  content: counter(faqstep, decimal-leading-zero);
  position: absolute;
  left: 0;
  top: .12rem;
  font-family: var(--font-mono);
  font-size: .74rem;
  font-weight: 700;
  color: var(--cyan-deep);
}

.page-faq .step__list strong {
  display: block;
  color: var(--ink-900);
  font-weight: 700;
}

/* 三步流程图 */
.page-faq .flow {
  display: block;
  width: 100%;
  max-width: 34rem;
  height: auto;
  margin: 1.35rem 0 .25rem;
}

/* 图片 */
.page-faq .step__figure {
  margin: 1.4rem 0 0;
}

.page-faq .figure__frame {
  overflow: hidden;
  border-radius: var(--radius-md);
  background: linear-gradient(150deg, var(--ice), rgba(67, 240, 207, .22));
}

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

.page-faq .figure__caption {
  margin-top: .6rem;
  font-size: .8rem;
  line-height: 1.65;
  color: var(--mist);
}

/* 排版对照 */
.page-faq .device-compare {
  display: grid;
  gap: .8rem;
  margin-top: 1.3rem;
}

.page-faq .device {
  padding: .95rem 1rem 1.1rem;
  border: 2px solid rgba(11, 42, 37, .14);
  border-radius: var(--radius-md);
  background: var(--paper);
}

.page-faq .device--large {
  border-color: rgba(67, 240, 207, .85);
  background: linear-gradient(180deg, rgba(207, 239, 245, .58), var(--paper));
}

.page-faq .device__caption {
  margin: 0 0 .75rem;
  font-family: var(--font-mono);
  font-size: .7rem;
  letter-spacing: .12em;
  color: var(--cyan-deep);
}

.page-faq .device__line {
  display: block;
  height: .48rem;
  margin-bottom: .45rem;
  border-radius: 999px;
  background: rgba(11, 42, 37, .14);
}

.page-faq .device__line--title {
  height: .68rem;
  background: rgba(11, 42, 37, .3);
}

.page-faq .device__line--short {
  width: 62%;
}

.page-faq .device--large .device__line {
  height: .82rem;
  background: rgba(11, 42, 37, .2);
}

.page-faq .device--large .device__line--title {
  height: 1.1rem;
  background: var(--ink-900);
}

.page-faq .device--large .device__line--short {
  width: 70%;
}

/* 反馈清单 */
.page-faq .checklist {
  margin: 1.15rem 0 0;
  padding: 1rem 1.1rem;
  list-style: none;
  display: grid;
  gap: .55rem;
  border-radius: var(--radius-md);
  background: rgba(207, 239, 245, .48);
  border: 1px dashed rgba(45, 74, 68, .22);
}

.page-faq .checklist li {
  position: relative;
  padding-left: 1.6rem;
  font-size: .92rem;
  line-height: 1.7;
  color: var(--slate);
}

.page-faq .checklist li::before {
  content: "";
  position: absolute;
  left: .1rem;
  top: .55rem;
  width: .58rem;
  height: .58rem;
  border-radius: 50%;
  background: var(--lemon);
  box-shadow: 0 0 0 3px rgba(216, 255, 106, .28);
}

/* 结尾引导 */
.page-faq .faq-cta {
  margin-top: clamp(2rem, 5vw, 3.5rem);
  padding: clamp(1.5rem, 4vw, 2.5rem);
  border-radius: var(--radius-lg);
  background:
    radial-gradient(120% 140% at 90% -20%, rgba(67, 240, 207, .22), transparent 60%),
    linear-gradient(160deg, var(--ink-900), var(--ink-950));
  color: var(--paper);
}

.page-faq .faq-cta__title {
  margin: 0 0 .6rem;
  font-family: var(--font-display);
  font-size: clamp(1.2rem, 3vw, 1.55rem);
  font-weight: 800;
  line-height: 1.35;
  color: var(--paper);
}

.page-faq .faq-cta__text {
  margin: 0;
  max-width: 34rem;
  font-size: .93rem;
  line-height: 1.8;
  color: rgba(245, 251, 248, .78);
}

.page-faq .faq-cta__actions {
  display: flex;
  flex-wrap: wrap;
  gap: .65rem;
  margin-top: 1.25rem;
}

.page-faq .faq-cta .button--ghost {
  border-color: rgba(67, 240, 207, .55);
  color: var(--cyan);
}

@media (min-width: 40rem) {
  .page-faq .device-compare {
    grid-template-columns: 1fr 1fr;
    align-items: stretch;
  }
}

@media (min-width: 64rem) {
  .page-faq .faq-layout {
    grid-template-columns: 14.5rem minmax(0, 1fr);
    align-items: start;
  }

  .page-faq .faq-index {
    position: sticky;
    top: 5.5rem;
    padding: 1.25rem 1.1rem;
  }

  .page-faq .faq-index__list {
    flex-direction: column;
    flex-wrap: nowrap;
    gap: .2rem;
  }

  .page-faq .faq-index__link {
    display: flex;
    width: 100%;
    padding: .5rem .6rem;
    border-radius: var(--radius-sm);
    background: transparent;
  }

  .page-faq .step {
    padding-left: 3rem;
  }
}
<<<END>>>