.page-faq {
  padding: 22px 0 72px;
  color: var(--paper);
}

/* 面包屑 */
.page-faq .crumbs {
  margin-bottom: 20px;
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--muted);
}
.page-faq .crumbs ol {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin: 0;
  padding: 0;
  list-style: none;
}
.page-faq .crumbs li + li::before {
  content: "/";
  margin-right: 6px;
  color: var(--line);
}
.page-faq .crumbs a {
  color: var(--mist);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color 0.18s var(--ease), border-color 0.18s var(--ease);
}
.page-faq .crumbs a:hover,
.page-faq .crumbs a:focus-visible {
  color: var(--volt);
  border-bottom-color: var(--volt);
}

/* 首屏 */
.page-faq .faq-hero {
  position: relative;
  overflow: hidden;
  padding: 26px 18px 22px;
  border: 1px solid var(--line);
  background:
    radial-gradient(130% 150% at 92% -10%, rgba(123, 92, 255, 0.22), transparent 62%),
    linear-gradient(180deg, var(--ink-800) 0%, var(--ink-900) 100%);
}
.page-faq .faq-hero::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  opacity: 0.26;
  background-image:
    linear-gradient(var(--line-soft) 1px, transparent 1px),
    linear-gradient(90deg, var(--line-soft) 1px, transparent 1px);
  background-size: 46px 46px;
}
.page-faq .faq-hero > * {
  position: relative;
  z-index: 1;
}
.page-faq .faq-hero h1 {
  margin: 14px 0 12px;
  font-size: clamp(1.9rem, 7.4vw, 3.3rem);
  font-weight: 800;
  line-height: 1.08;
  letter-spacing: -0.02em;
}
.page-faq .lede {
  max-width: 62ch;
  margin: 0;
  font-size: 1rem;
  line-height: 1.78;
  color: var(--mist);
}
.page-faq .faq-hero__facts {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: 14px 18px;
  margin-top: 22px;
  padding-top: 18px;
  border-top: 1px solid var(--line);
}
.page-faq .fact__num {
  display: block;
  font-family: var(--font-mono);
  font-size: 1.35rem;
  color: var(--volt);
  text-shadow: var(--glow-volt);
}
.page-faq .fact--thunder .fact__num {
  color: var(--thunder);
  text-shadow: var(--glow-thunder);
}
.page-faq .fact__label {
  display: block;
  margin-top: 4px;
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--muted);
}

/* 双栏布局 */
.page-faq .faq-layout {
  display: grid;
  gap: 30px;
  margin-top: 34px;
}
.page-faq .faq-body {
  min-width: 0;
}

/* 左侧索引 */
.page-faq .faq-index {
  padding: 16px 14px;
  border: 1px solid var(--line);
  background: var(--ink-800);
}
.page-faq .index-title {
  margin: 0 0 12px;
  font-size: 12px;
  letter-spacing: 0.18em;
  color: var(--thunder);
}
.page-faq .index-list {
  display: grid;
  gap: 2px;
  margin: 0;
  padding: 0;
  list-style: none;
}
.page-faq .index-link {
  display: flex;
  gap: 10px;
  align-items: baseline;
  padding: 9px 8px;
  border-left: 2px solid transparent;
  color: var(--mist);
  font-size: 14px;
  text-decoration: none;
  transition: color 0.18s var(--ease), border-color 0.18s var(--ease), background 0.18s var(--ease);
}
.page-faq .index-link__num {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--volt);
}
.page-faq .index-link:hover,
.page-faq .index-link:focus-visible {
  color: var(--paper);
  border-left-color: var(--thunder);
  background: rgba(255, 106, 43, 0.08);
}

/* 章节 */
.page-faq .faq-sect,
.page-faq .faq-next {
  margin-bottom: 54px;
  scroll-margin-top: calc(var(--bar-h) + 20px);
}
.page-faq .faq-next {
  margin-bottom: 0;
}
.page-faq .faq-sect__title {
  margin: 8px 0 14px;
  font-size: clamp(1.35rem, 4.4vw, 2rem);
  font-weight: 800;
  line-height: 1.2;
  letter-spacing: -0.01em;
}
.page-faq .faq-sect:target .faq-sect__title {
  color: var(--thunder);
}
.page-faq .faq-sect__intro {
  max-width: 66ch;
  margin: 0;
  color: var(--mist);
  line-height: 1.78;
}

/* 编号步骤 */
.page-faq .steps {
  margin: 24px 0 0;
  padding: 0;
  list-style: none;
}
.page-faq .steps__item {
  position: relative;
  display: grid;
  grid-template-columns: 42px minmax(0, 1fr);
  gap: 14px;
  padding-bottom: 22px;
}
.page-faq .steps__item::before {
  content: "";
  position: absolute;
  left: 20px;
  top: 42px;
  bottom: 0;
  width: 1px;
  background: linear-gradient(180deg, var(--line), transparent);
}
.page-faq .steps__item:last-child::before {
  display: none;
}
.page-faq .steps__num {
  position: relative;
  z-index: 1;
  display: grid;
  place-items: center;
  width: 42px;
  height: 42px;
  border: 1px solid var(--line);
  background: var(--ink-800);
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--volt);
}
.page-faq .steps__item:nth-child(even) .steps__num {
  border-color: rgba(255, 106, 43, 0.45);
  color: var(--thunder);
}
.page-faq .steps__body h3 {
  margin: 8px 0 6px;
  font-size: 1.02rem;
  font-weight: 700;
  letter-spacing: 0.01em;
}
.page-faq .steps__body p {
  margin: 0;
  color: var(--mist);
  font-size: 0.95rem;
  line-height: 1.78;
}
.page-faq .steps__body a {
  color: var(--volt);
  text-decoration: none;
  border-bottom: 1px solid rgba(53, 224, 208, 0.4);
}
.page-faq .steps__body a:hover,
.page-faq .steps__body a:focus-visible {
  color: var(--paper);
  border-bottom-color: var(--paper);
}
.page-faq .steps__result {
  display: inline-block;
  margin-top: 10px;
  padding: 4px 10px;
  border: 1px solid rgba(107, 227, 138, 0.36);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  color: var(--signal);
}

/* 折叠问答 */
.page-faq .qa {
  border-top: 1px solid var(--line);
}
.page-faq .qa:last-of-type {
  border-bottom: 1px solid var(--line);
}
.page-faq .qa summary {
  display: flex;
  gap: 14px;
  align-items: flex-start;
  justify-content: space-between;
  padding: 16px 2px;
  cursor: pointer;
  list-style: none;
  font-size: 1rem;
  font-weight: 600;
  line-height: 1.6;
  color: var(--paper);
  transition: color 0.18s var(--ease);
}
.page-faq .qa summary::-webkit-details-marker {
  display: none;
}
.page-faq .qa summary::after {
  content: "+";
  flex: none;
  font-family: var(--font-mono);
  font-size: 1.15rem;
  line-height: 1;
  color: var(--thunder);
  transition: transform 0.2s var(--ease);
}
.page-faq .qa[open] summary::after {
  content: "–";
}
.page-faq .qa summary:hover {
  color: var(--volt);
}
.page-faq .qa__body {
  padding: 0 2px 18px;
  max-width: 68ch;
  color: var(--mist);
  font-size: 0.95rem;
  line-height: 1.82;
}
.page-faq .qa__body p {
  margin: 0 0 10px;
}
.page-faq .qa__body p:last-child {
  margin-bottom: 0;
}
.page-faq .qa__body a {
  color: var(--volt);
  text-decoration: none;
  border-bottom: 1px solid rgba(53, 224, 208, 0.4);
}
.page-faq .qa__body a:hover,
.page-faq .qa__body a:focus-visible {
  color: var(--paper);
  border-bottom-color: var(--paper);
}

/* 分段切换：统计维度 */
.page-faq .tabs {
  margin-top: 24px;
  border: 1px solid var(--line);
  background: var(--ink-800);
}
.page-faq .tabs__list {
  display: flex;
  flex-wrap: wrap;
  border-bottom: 1px solid var(--line);
}
.page-faq .tabs__btn {
  flex: 1 1 auto;
  min-width: 140px;
  padding: 13px 14px;
  border: 0;
  border-bottom: 2px solid transparent;
  background: transparent;
  color: var(--muted);
  font: inherit;
  font-size: 13px;
  letter-spacing: 0.06em;
  cursor: pointer;
  transition: color 0.18s var(--ease), border-color 0.18s var(--ease), background 0.18s var(--ease);
}
.page-faq .tabs__btn:hover,
.page-faq .tabs__btn:focus-visible {
  color: var(--paper);
}
.page-faq .tabs__btn[aria-selected="true"] {
  color: var(--paper);
  border-bottom-color: var(--thunder);
  background: rgba(255, 106, 43, 0.07);
}
.page-faq .tabs__panel {
  padding: 20px 16px;
}
.page-faq .tabs__panel[hidden] {
  display: none;
}
.page-faq .tabs__panel h3 {
  margin: 0 0 8px;
  font-size: 1.02rem;
  font-weight: 700;
}
.page-faq .tabs__panel p {
  margin: 0;
  max-width: 68ch;
  color: var(--mist);
  font-size: 0.95rem;
  line-height: 1.82;
}

/* 图示 */
.page-faq .faq-figure {
  margin: 26px 0 8px;
  border: 1px solid var(--line);
  background: var(--ink-950);
}
.page-faq .faq-figure img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
}
.page-faq .faq-figure figcaption {
  padding: 10px 14px;
  border-top: 1px solid var(--line);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.06em;
  color: var(--muted);
}

/* 提示条 */
.page-faq .note {
  margin-top: 22px;
  padding: 14px 16px;
  border-left: 2px solid var(--volt);
  background: rgba(53, 224, 208, 0.07);
  color: var(--mist);
  font-size: 0.93rem;
  line-height: 1.78;
}
.page-faq .note strong {
  color: var(--paper);
  font-weight: 700;
}

/* 账号数据块 */
.page-faq .faq-facts {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1px;
  margin-top: 22px;
  background: var(--line);
  border: 1px solid var(--line);
}
.page-faq .faq-fact {
  padding: 16px;
  background: var(--ink-800);
}
.page-faq .faq-fact__num {
  display: block;
  font-family: var(--font-mono);
  font-size: 1.6rem;
  color: var(--violet);
}
.page-faq .faq-fact__label {
  display: block;
  margin-top: 4px;
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--muted);
}
.page-faq .faq-fact p {
  margin: 10px 0 0;
  color: var(--mist);
  font-size: 0.92rem;
  line-height: 1.75;
}

/* 延伸入口 */
.page-faq .next-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1px;
  margin-top: 20px;
  background: var(--line);
  border: 1px solid var(--line);
}
.page-faq .next-card {
  display: block;
  padding: 18px 16px;
  background: var(--ink-900);
  text-decoration: none;
  transition: background 0.2s var(--ease);
}
.page-faq .next-card__idx {
  display: block;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  color: var(--thunder);
}
.page-faq .next-card__title {
  display: block;
  margin-top: 8px;
  font-size: 1.02rem;
  font-weight: 700;
  color: var(--paper);
}
.page-faq .next-card__desc {
  display: block;
  margin-top: 6px;
  font-size: 0.9rem;
  line-height: 1.7;
  color: var(--mist);
}
.page-faq .next-card:hover,
.page-faq .next-card:focus-visible {
  background: var(--ink-800);
}
.page-faq .next-card:hover .next-card__title,
.page-faq .next-card:focus-visible .next-card__title {
  color: var(--volt);
}

/* 平板与桌面 */
@media (min-width: 700px) {
  .page-faq {
    padding: 30px 0 90px;
  }
  .page-faq .faq-hero {
    padding: 38px 32px 30px;
  }
  .page-faq .faq-hero__facts {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
  .page-faq .faq-sect,
  .page-faq .faq-next {
    margin-bottom: 66px;
  }
  .page-faq .faq-facts {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
  .page-faq .next-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .page-faq .steps__item {
    grid-template-columns: 52px minmax(0, 1fr);
    gap: 18px;
  }
  .page-faq .steps__num {
    width: 52px;
    height: 52px;
  }
  .page-faq .steps__item::before {
    left: 25px;
    top: 52px;
  }
  .page-faq .tabs__panel {
    padding: 24px 22px;
  }
}

@media (min-width: 1024px) {
  .page-faq .faq-layout {
    grid-template-columns: 250px minmax(0, 1fr);
    gap: 46px;
    margin-top: 44px;
  }
  .page-faq .faq-index {
    position: sticky;
    top: calc(var(--bar-h) + 20px);
    padding: 18px 16px;
  }
  .page-faq .next-grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
  .page-faq .faq-figure {
    margin-top: 30px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .index-link,
  .page-faq .qa summary::after,
  .page-faq .tabs__btn,
  .page-faq .next-card,
  .page-faq .crumbs a {
    transition: none;
  }
}
<<<END>>>