.page-faq {
  --faq-ink-soft: rgba(16, 24, 32, .64);
  --faq-rule: rgba(16, 24, 32, .14);
  background: var(--deep);
  color: var(--warm);
  overflow-x: clip;
}

/* ---------- 区块节奏 ---------- */
.page-faq .faq-band {
  padding-block: clamp(2.5rem, 5.5vw, 5rem);
}
.page-faq .faq-band--deep {
  background:
    radial-gradient(90% 72% at 92% 2%, rgba(27, 79, 138, .58), transparent 62%),
    var(--deep);
  border-bottom: 1px solid var(--line-soft);
}
.page-faq .faq-band--light {
  background: var(--warm);
  color: var(--ink);
  border-top: 1px solid rgba(200, 164, 93, .22);
}
.page-faq .faq-band--royal {
  background: linear-gradient(155deg, var(--royal) 0%, var(--deep) 82%);
}
.page-faq .faq-band--dark {
  background:
    radial-gradient(80% 90% at 10% 0%, rgba(18, 58, 107, .7), transparent 58%),
    var(--deep-2);
}

.page-faq .faq-band--light .eyebrow {
  color: var(--royal-bright);
}
.page-faq .faq-band--light .faq-h2 {
  color: var(--ink);
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  display: grid;
  gap: clamp(1.75rem, 4vw, 3.25rem);
  margin-top: clamp(1.25rem, 3vw, 2.25rem);
}
.page-faq .faq-title {
  font-family: var(--serif);
  font-weight: 700;
  font-size: clamp(2.35rem, 7vw, 4.6rem);
  line-height: 1.02;
  letter-spacing: -.03em;
  margin: .55rem 0 1.1rem;
}
.page-faq .faq-hero .lead {
  color: var(--mist);
  font-size: clamp(1rem, 1.5vw, 1.12rem);
  line-height: 1.85;
  max-width: 44ch;
  margin: 0;
}

.page-faq .faq-chips {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: .55rem;
  margin-top: 1.6rem;
}
.page-faq .faq-chips__label {
  font-family: var(--mono);
  font-size: .72rem;
  letter-spacing: .16em;
  color: var(--gold-soft);
  margin-right: .35rem;
}
.page-faq .faq-chip {
  display: inline-block;
  padding: .45rem 1rem;
  border: 1px solid var(--line);
  border-radius: var(--r-pill);
  font-size: .85rem;
  color: var(--warm);
  text-decoration: none;
  transition: border-color .3s var(--ease), background-color .3s var(--ease), color .3s var(--ease);
}
.page-faq .faq-chip:hover,
.page-faq .faq-chip:focus-visible {
  border-color: var(--gold);
  background: rgba(200, 164, 93, .14);
  color: var(--gold-soft);
}

.page-faq .faq-stats {
  list-style: none;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1.05rem 1.25rem;
  margin: 1.9rem 0 0;
  padding: 1.25rem 0 0;
  border-top: 1px solid var(--line-soft);
}
.page-faq .faq-stat__num {
  display: block;
  font-family: var(--mono);
  font-size: clamp(1.15rem, 2.2vw, 1.6rem);
  line-height: 1.2;
  color: var(--gold-soft);
}
.page-faq .faq-stat__label {
  display: block;
  margin-top: .35rem;
  font-size: .78rem;
  letter-spacing: .02em;
  color: var(--mist);
}

.page-faq .faq-hero__media {
  margin: 0;
  border-radius: var(--r-xl);
  border: 1px solid var(--line);
  background: var(--royal);
  overflow: hidden;
}
.page-faq .faq-hero__media img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
}

/* ---------- 索引区 ---------- */
.page-faq .faq-index {
  display: grid;
  gap: clamp(1.75rem, 4vw, 3.5rem);
}
.page-faq .faq-rail {
  border-left: 1px solid var(--faq-rule);
  padding-left: 1.1rem;
}
.page-faq .faq-rail__caption {
  margin: 0 0 .9rem;
  font-family: var(--mono);
  font-size: .72rem;
  letter-spacing: .16em;
  color: var(--royal-bright);
}
.page-faq .faq-rail__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: .15rem;
}
.page-faq .faq-rail__link {
  display: flex;
  align-items: baseline;
  gap: .7rem;
  padding: .5rem .1rem;
  font-size: .95rem;
  color: var(--faq-ink-soft);
  text-decoration: none;
  transition: color .25s var(--ease), transform .25s var(--ease);
}
.page-faq .faq-rail__num {
  font-family: var(--mono);
  font-size: .74rem;
  color: rgba(27, 79, 138, .65);
}
.page-faq .faq-rail__link:hover,
.page-faq .faq-rail__link:focus-visible {
  color: var(--royal-bright);
}
.page-faq .faq-rail__link.is-current {
  color: var(--ink);
  font-weight: 500;
}
.page-faq .faq-rail__link.is-current .faq-rail__num {
  color: var(--gold);
}
.page-faq .faq-rail__note {
  margin: 1.2rem 0 0;
  font-size: .8rem;
  line-height: 1.7;
  color: var(--faq-ink-soft);
}

.page-faq .faq-groups__head {
  max-width: 46rem;
}
.page-faq .faq-h2 {
  font-family: var(--serif);
  font-weight: 600;
  font-size: clamp(1.55rem, 3.6vw, 2.4rem);
  line-height: 1.18;
  letter-spacing: -.02em;
  margin: .4rem 0 .85rem;
}
.page-faq .faq-groups__lead {
  margin: 0;
  font-size: .98rem;
  line-height: 1.8;
  color: var(--faq-ink-soft);
  max-width: 52ch;
}

.page-faq .faq-group {
  margin-top: clamp(1.9rem, 4vw, 2.9rem);
}
.page-faq .faq-group__head {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  justify-content: space-between;
  gap: .4rem 1rem;
  padding-bottom: .85rem;
  border-bottom: 1px solid rgba(200, 164, 93, .38);
}
.page-faq .faq-group__title {
  margin: 0;
  font-family: var(--serif);
  font-weight: 600;
  font-size: clamp(1.15rem, 2.2vw, 1.35rem);
  color: var(--ink);
}
.page-faq .faq-group__meta {
  margin: 0;
  font-family: var(--mono);
  font-size: .74rem;
  letter-spacing: .04em;
  color: var(--faq-ink-soft);
}

/* ---------- 可折叠条目 ---------- */
.page-faq .faq-entry {
  border-bottom: 1px solid var(--faq-rule);
}
.page-faq .faq-entry__summary {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto 1.15rem;
  align-items: center;
  gap: .65rem .85rem;
  padding: .95rem .1rem;
  cursor: pointer;
  list-style: none;
  transition: color .25s var(--ease);
}
.page-faq .faq-entry__summary::-webkit-details-marker {
  display: none;
}
.page-faq .faq-entry__summary::after {
  content: "+";
  font-family: var(--mono);
  font-size: 1rem;
  line-height: 1;
  color: var(--royal-bright);
  text-align: right;
}
.page-faq .faq-entry[open] .faq-entry__summary::after {
  content: "–";
  color: var(--gold);
}
.page-faq .faq-entry__summary:hover .faq-entry__name,
.page-faq .faq-entry__summary:focus-visible .faq-entry__name {
  color: var(--royal-bright);
}
.page-faq .faq-entry__code {
  font-family: var(--mono);
  font-size: .78rem;
  letter-spacing: .04em;
  color: var(--royal-bright);
}
.page-faq .faq-entry__name {
  font-size: .98rem;
  color: var(--ink);
  transition: color .25s var(--ease);
}
.page-faq .faq-entry__tag {
  font-family: var(--mono);
  font-size: .72rem;
  color: var(--faq-ink-soft);
  white-space: nowrap;
}
.page-faq .faq-entry__body {
  padding: 0 0 1.2rem .1rem;
}

/* ---------- 步骤列表 ---------- */
.page-faq .faq-steps {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: .7rem;
}
.page-faq .faq-step {
  display: grid;
  grid-template-columns: 1.75rem minmax(0, 1fr);
  gap: .8rem;
  align-items: start;
}
.page-faq .faq-step__num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 1.75rem;
  height: 1.75rem;
  border: 1px solid rgba(27, 79, 138, .45);
  border-radius: 50%;
  font-family: var(--mono);
  font-size: .72rem;
  color: var(--royal-bright);
  background: rgba(232, 238, 247, .8);
}
.page-faq .faq-step p {
  margin: 0;
  padding-top: .15rem;
  font-size: .95rem;
  line-height: 1.72;
  color: var(--ink);
}
.page-faq .faq-step p a {
  color: var(--royal-bright);
  text-decoration: underline;
  text-decoration-color: rgba(27, 79, 138, .4);
  text-underline-offset: .22em;
}
.page-faq .faq-step p a:hover {
  text-decoration-color: var(--royal-bright);
}

/* 深色背景上的步骤变体 */
.page-faq .faq-steps--dark .faq-step__num {
  background: transparent;
  border-color: var(--line);
  color: var(--gold-soft);
}
.page-faq .faq-steps--dark .faq-step p {
  color: var(--mist);
}

/* ---------- 苹果设备章节 ---------- */
.page-faq .faq-apple {
  display: grid;
  gap: clamp(1.75rem, 4vw, 3.25rem);
}
.page-faq .faq-apple__text {
  max-width: 46rem;
}
.page-faq .faq-apple__lead {
  margin: 0 0 1.5rem;
  font-size: 1rem;
  line-height: 1.85;
  color: var(--mist);
}
.page-faq .faq-apple__note {
  margin: 1.4rem 0 0;
  padding-top: 1rem;
  border-top: 1px solid var(--line-soft);
  font-size: .84rem;
  line-height: 1.75;
  color: var(--mist);
}
.page-faq .faq-apple__note a {
  color: var(--gold-soft);
  text-decoration: underline;
  text-underline-offset: .22em;
}
.page-faq .faq-apple__media {
  margin: 0;
  border-radius: var(--r-xl);
  border: 1px solid var(--line);
  overflow: hidden;
  background: var(--royal-mid);
}
.page-faq .faq-apple__media img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
}

/* ---------- 步骤阅读示例 ---------- */
.page-faq .faq-flow__head {
  max-width: 44rem;
}
.page-faq .faq-flow__lead {
  margin: 0;
  font-size: .98rem;
  line-height: 1.8;
  color: var(--faq-ink-soft);
}
.page-faq .faq-flow__list {
  list-style: none;
  margin: clamp(1.5rem, 3.5vw, 2.4rem) 0 0;
  padding: 0;
  display: grid;
  gap: 1.15rem;
  max-width: 44rem;
}
.page-faq .faq-flow__item {
  position: relative;
  display: grid;
  grid-template-columns: 2.4rem minmax(0, 1fr);
  gap: .9rem;
  align-items: start;
}
.page-faq .faq-flow__item:not(:last-child)::before {
  content: "";
  position: absolute;
  left: .62rem;
  top: 1.75rem;
  bottom: -1.15rem;
  width: 1px;
  background: linear-gradient(rgba(200, 164, 93, .75), rgba(200, 164, 93, .05));
}
.page-faq .faq-flow__num {
  font-family: var(--mono);
  font-size: .95rem;
  line-height: 1.6;
  color: var(--royal-bright);
}
.page-faq .faq-flow__text {
  margin: 0;
  font-size: .98rem;
  line-height: 1.75;
  color: var(--ink);
  padding-top: .1rem;
}
.page-faq .faq-flow__foot {
  margin: clamp(1.5rem, 3vw, 2.2rem) 0 0;
  max-width: 44rem;
  padding-top: 1.1rem;
  border-top: 1px solid var(--faq-rule);
  font-size: .86rem;
  line-height: 1.8;
  color: var(--faq-ink-soft);
}

/* ---------- 联系支持 ---------- */
.page-faq .faq-support {
  display: grid;
  gap: clamp(1.75rem, 4vw, 3rem);
}
.page-faq .faq-support__text {
  max-width: 42rem;
}
.page-faq .faq-support__lead {
  margin: 0 0 1rem;
  font-size: 1rem;
  line-height: 1.85;
  color: var(--mist);
}
.page-faq .faq-support__note {
  margin: 0;
  font-size: .84rem;
  line-height: 1.75;
  color: rgba(201, 210, 222, .82);
}
.page-faq .faq-support__cta {
  margin: 1.5rem 0 0;
}
.page-faq .faq-support__list {
  margin: 0;
  padding: clamp(1.25rem, 3vw, 1.75rem);
  display: grid;
  gap: 1.1rem;
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  background: rgba(18, 58, 107, .34);
}
.page-faq .faq-support__item dt {
  font-family: var(--mono);
  font-size: .72rem;
  letter-spacing: .14em;
  color: var(--gold-soft);
}
.page-faq .faq-support__item dd {
  margin: .4rem 0 0;
  font-size: .95rem;
  line-height: 1.6;
  color: var(--warm);
  overflow-wrap: anywhere;
}

.page-faq .faq-more {
  list-style: none;
  margin: clamp(1.75rem, 4vw, 2.75rem) 0 0;
  padding: 1.1rem 0 0;
  border-top: 1px solid var(--line-soft);
  display: flex;
  flex-wrap: wrap;
  gap: .6rem 1.5rem;
}
.page-faq .faq-more a {
  font-size: .86rem;
  color: var(--mist);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color .25s var(--ease), border-color .25s var(--ease);
}
.page-faq .faq-more a:hover,
.page-faq .faq-more a:focus-visible {
  color: var(--gold-soft);
  border-color: var(--gold);
}

/* ---------- 断点 ---------- */
@media (min-width: 40rem) {
  .page-faq .faq-stats {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
  .page-faq .faq-entry__summary {
    grid-template-columns: 5rem minmax(0, 1fr) auto 1.15rem;
  }
}

@media (min-width: 62rem) {
  .page-faq .faq-hero {
    grid-template-columns: minmax(0, 1.08fr) minmax(0, .92fr);
    align-items: center;
  }
  .page-faq .faq-index {
    grid-template-columns: 13.5rem minmax(0, 1fr);
    align-items: start;
    gap: 3.5rem;
  }
  .page-faq .faq-rail {
    position: sticky;
    top: calc(var(--bar-h) + 1.75rem);
  }
  .page-faq .faq-apple {
    grid-template-columns: minmax(0, 1.06fr) minmax(0, .94fr);
    align-items: center;
  }
  .page-faq .faq-support {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, .85fr);
    align-items: start;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-chip,
  .page-faq .faq-rail__link,
  .page-faq .faq-entry__name,
  .page-faq .faq-more a {
    transition: none;
  }
}
<<<END>>>