.page-faq {
  --faq-rule: rgba(255, 255, 255, 0.14);
  --faq-rule-soft: rgba(255, 255, 255, 0.08);
  --faq-gap: clamp(14px, 2.4vw, 26px);
  padding-bottom: clamp(54px, 9vw, 108px);
  color: var(--white);
  background:
    radial-gradient(130% 55% at 8% 0%, rgba(47, 127, 240, 0.18), transparent 62%),
    radial-gradient(90% 45% at 96% 22%, rgba(34, 160, 107, 0.1), transparent 60%),
    linear-gradient(180deg, var(--night-900) 0%, var(--night-950) 58%);
}

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

.page-faq .breadcrumb {
  padding-top: 20px;
  font-size: 12px;
}

.page-faq .faq-scale {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 4px;
  height: 3px;
  margin-top: 16px;
}

.page-faq .faq-scale span:nth-child(1) { background: var(--blue); }
.page-faq .faq-scale span:nth-child(2) { background: rgba(255, 255, 255, 0.55); }
.page-faq .faq-scale span:nth-child(3) { background: var(--red); }
.page-faq .faq-scale span:nth-child(4) { background: var(--green); }
.page-faq .faq-scale span:nth-child(5) { background: var(--yellow); }

/* 首屏 */
.page-faq .faq-hero {
  padding-top: clamp(24px, 4.4vw, 46px);
}

.page-faq .faq-hero__grid {
  display: grid;
  gap: clamp(22px, 3.2vw, 36px);
}

.page-faq .faq-hero__lead {
  min-width: 0;
}

.page-faq .faq-hero__lead h1 {
  margin: 0.16em 0 0.34em;
  font-family: var(--font-sans);
  font-size: clamp(2.6rem, 10vw, 4.8rem);
  font-weight: 800;
  line-height: 0.98;
  letter-spacing: -0.03em;
  color: var(--white);
}

.page-faq .faq-hero__intro {
  max-width: 54ch;
  margin: 0 0 22px;
  font-size: clamp(0.95rem, 2.3vw, 1.04rem);
  line-height: 1.85;
  color: var(--muted);
}

.page-faq .faq-hero__facts {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 20px;
  margin: 0;
  padding: 0;
  list-style: none;
  font-size: 12px;
  letter-spacing: 0.02em;
  color: var(--faint);
}

.page-faq .faq-hero__facts li {
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

/* 快速定位面板 */
.page-faq .faq-index {
  min-width: 0;
  padding: clamp(18px, 3vw, 24px);
  border: 1px solid var(--faq-rule);
  border-radius: var(--radius);
  background: var(--glass);
}

.page-faq .faq-index__title {
  margin: 0 0 12px;
  font-size: 0.95rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  color: var(--white);
}

.page-faq .faq-index__list {
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-faq .faq-index__list a {
  display: flex;
  align-items: baseline;
  gap: 10px;
  padding: 11px 0;
  border-bottom: 1px solid var(--faq-rule-soft);
  color: var(--white);
  font-size: 14px;
  text-decoration: none;
  transition: color 0.15s ease;
}

.page-faq .faq-index__list a:hover,
.page-faq .faq-index__list a:focus-visible {
  color: var(--yellow);
}

.page-faq .faq-index__num {
  flex: none;
  font-size: 11px;
  color: var(--faint);
}

.page-faq .faq-index__count {
  margin-left: auto;
  flex: none;
  font-size: 11px;
  color: var(--faint);
}

.page-faq .faq-index__note {
  margin: 16px 0 0;
  font-size: 12.5px;
  line-height: 1.8;
  color: var(--muted);
}

.page-faq .faq-index__note a {
  color: var(--yellow);
  text-decoration: none;
  border-bottom: 1px solid rgba(240, 180, 41, 0.5);
}

/* 首屏主图 */
.page-faq .faq-banner {
  padding-top: clamp(26px, 4.4vw, 48px);
}

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

/* 问答主体 */
.page-faq .faq-body__inner {
  display: grid;
  gap: clamp(30px, 4.6vw, 52px);
  padding-top: clamp(30px, 5vw, 56px);
}

.page-faq .faq-group {
  display: grid;
  gap: var(--faq-gap);
  min-width: 0;
  padding-top: 20px;
  border-top: 1px solid var(--faq-rule);
  scroll-margin-top: 90px;
}

.page-faq .faq-group__head {
  display: grid;
  gap: 10px;
  align-content: start;
}

.page-faq .faq-group__no {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 34px;
  height: 34px;
  border-radius: var(--radius-sm);
  font-size: 12px;
  font-weight: 700;
  color: var(--night-950);
  background: var(--blue);
}

.page-faq .faq-group--fees .faq-group__no { background: var(--yellow); }
.page-faq .faq-group--version .faq-group__no { background: var(--blue); }
.page-faq .faq-group--devices .faq-group__no { background: var(--green); }
.page-faq .faq-group--start .faq-group__no { background: var(--red); color: var(--white); }

.page-faq .faq-group__head h2 {
  margin: 0;
  font-size: clamp(1.45rem, 5vw, 1.95rem);
  font-weight: 800;
  line-height: 1.2;
  letter-spacing: -0.01em;
  color: var(--white);
}

.page-faq .faq-group__desc {
  margin: 0;
  font-size: 0.9rem;
  line-height: 1.8;
  color: var(--faint);
}

.page-faq .faq-group__list {
  min-width: 0;
}

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

.page-faq .faq-item summary {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  padding: 17px 0;
  font-size: clamp(0.97rem, 2.4vw, 1.06rem);
  font-weight: 600;
  line-height: 1.55;
  color: var(--white);
  cursor: pointer;
  list-style: none;
}

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

.page-faq .faq-item summary::after {
  content: "+";
  flex: none;
  margin-left: auto;
  font-family: var(--font-mono);
  font-size: 1.15rem;
  line-height: 1.3;
  color: var(--faint);
}

.page-faq .faq-item[open] summary::after {
  content: "–";
  color: var(--yellow);
}

.page-faq .faq-item summary:hover {
  color: var(--yellow);
}

.page-faq .faq-item summary:hover::after {
  color: var(--yellow);
}

.page-faq .faq-item summary:focus-visible {
  outline: 2px solid var(--blue);
  outline-offset: 3px;
}

.page-faq .faq-item__a {
  padding: 0 0 18px;
  border-left: 2px solid var(--faq-rule);
  padding-left: 14px;
  margin-left: 1px;
}

.page-faq .faq-item--plain .faq-item__a {
  border-left: 0;
}

.page-faq .faq-item__a p {
  max-width: 62ch;
  margin: 0 0 10px;
  font-size: 0.93rem;
  line-height: 1.8;
  color: var(--muted);
}

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

/* 中段横向图 */
.page-faq .faq-strip {
  margin: 0;
  min-width: 0;
}

/* 联系区 */
.page-faq .faq-contact {
  padding-top: clamp(38px, 6vw, 74px);
}

.page-faq .faq-contact__inner {
  display: grid;
  gap: clamp(20px, 3vw, 32px);
  padding: clamp(24px, 4vw, 40px);
  border: 1px solid var(--faq-rule);
  border-radius: var(--radius-lg);
  background:
    linear-gradient(140deg, rgba(47, 127, 240, 0.16), rgba(4, 11, 22, 0.72) 62%),
    var(--glass);
}

.page-faq .faq-contact__main h2 {
  margin: 0 0 14px;
  font-size: clamp(1.3rem, 4.4vw, 1.7rem);
  font-weight: 800;
  line-height: 1.25;
  letter-spacing: -0.01em;
  color: var(--white);
}

.page-faq .faq-contact__main p {
  max-width: 56ch;
  margin: 0 0 20px;
  font-size: 0.93rem;
  line-height: 1.85;
  color: var(--muted);
}

.page-faq .faq-contact__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.page-faq .faq-contact__list {
  display: grid;
  gap: 12px;
  align-content: start;
  margin: 0;
  padding: 0;
  list-style: none;
  font-size: 12.5px;
  line-height: 1.7;
  color: var(--white);
  word-break: break-word;
}

.page-faq .faq-contact__list span {
  display: block;
  margin-bottom: 2px;
  font-size: 11px;
  letter-spacing: 0.1em;
  color: var(--faint);
}

@media (min-width: 720px) {
  .page-faq .faq-hero__facts {
    font-size: 12.5px;
  }

  .page-faq .faq-contact__list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 14px 20px;
  }
}

@media (min-width: 900px) {
  .page-faq .faq-hero__grid {
    grid-template-columns: minmax(0, 1fr) 326px;
    align-items: start;
  }

  .page-faq .faq-index {
    position: sticky;
    top: 92px;
  }

  .page-faq .faq-group {
    grid-template-columns: 232px minmax(0, 1fr);
    gap: clamp(22px, 3.4vw, 46px);
  }

  .page-faq .faq-group__head {
    position: sticky;
    top: 92px;
    align-self: start;
  }

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

  .page-faq .faq-contact__list {
    grid-template-columns: minmax(0, 1fr);
    border-left: 1px solid var(--faq-rule);
    padding-left: clamp(18px, 2.6vw, 28px);
  }
}

@media (min-width: 1140px) {
  .page-faq .faq-group {
    grid-template-columns: 256px minmax(0, 1fr);
  }
}
<<<END>>>