.page-faq {
  --faq-accent: var(--cyan);
  --faq-gap: clamp(20px, 3vw, 36px);
  color: var(--cream);
}

/* ---------- 首屏框景 ---------- */
.page-faq .faq-hero {
  position: relative;
  padding: clamp(18px, 4vw, 40px) 0 clamp(24px, 5vw, 48px);
  border-bottom: 1px solid var(--line);
  background:
    radial-gradient(110% 90% at 6% -10%, rgba(55, 230, 212, .13), transparent 58%),
    radial-gradient(85% 75% at 100% 0%, rgba(255, 77, 157, .1), transparent 62%);
  overflow: hidden;
}

.page-faq .faq-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  opacity: .2;
  background-image:
    repeating-linear-gradient(0deg, var(--line-soft) 0 1px, transparent 1px 88px),
    repeating-linear-gradient(90deg, var(--line-soft) 0 1px, transparent 1px 88px);
  -webkit-mask-image: linear-gradient(180deg, #000 0%, transparent 94%);
  mask-image: linear-gradient(180deg, #000 0%, transparent 94%);
}

.page-faq .faq-hero-box {
  position: relative;
  padding: clamp(18px, 4vw, 40px);
  border: 1px solid var(--line);
  border-radius: 2px var(--radius) 2px var(--radius);
  background: rgba(14, 20, 27, .74);
}

.page-faq .faq-hero-box::after {
  content: "";
  position: absolute;
  top: -1px;
  right: -1px;
  width: 42px;
  height: 42px;
  border-top: 2px solid var(--cyan);
  border-right: 2px solid var(--cyan);
  border-top-right-radius: var(--radius);
  opacity: .6;
  pointer-events: none;
}

.page-faq .faq-hero-box .crumbs {
  margin-bottom: clamp(14px, 3vw, 24px);
}

.page-faq h1 {
  margin: 10px 0 0;
  font-family: var(--font-display);
  font-size: clamp(30px, 7.4vw, 62px);
  font-weight: 800;
  line-height: 1.06;
  letter-spacing: -.02em;
  color: var(--cream);
  max-width: 18ch;
}

.page-faq .faq-lead {
  margin: 16px 0 0;
  max-width: 66ch;
  font-size: 15px;
  line-height: 1.78;
  color: var(--fog);
}

.page-faq .faq-jump {
  list-style: none;
  margin: 22px 0 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.page-faq .faq-jump a {
  display: inline-block;
  padding: 7px 12px;
  border: 1px solid var(--line);
  border-radius: 999px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .02em;
  color: var(--fog);
  text-decoration: none;
  transition: color .18s var(--ease), border-color .18s var(--ease), transform .18s var(--ease);
}

.page-faq .faq-jump a:hover,
.page-faq .faq-jump a:focus-visible {
  color: var(--cyan);
  border-color: var(--cyan-edge);
  transform: translateY(-1px);
}

/* ---------- 目录轴 + 答案栏 ---------- */
.page-faq .faq-shell-section {
  padding-top: clamp(24px, 5vw, 56px);
}

.page-faq .faq-shell {
  display: grid;
  gap: clamp(24px, 4vw, 48px);
  align-items: start;
}

.page-faq .faq-index {
  min-width: 0;
  padding-bottom: 4px;
  border-bottom: 1px dashed var(--line-soft);
}

.page-faq .faq-index-title {
  margin: 0 0 10px;
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--fog);
}

.page-faq .faq-index-list {
  list-style: none;
  margin: 0;
  padding: 0 0 6px;
  display: flex;
  gap: 8px;
  overflow-x: auto;
  scrollbar-width: thin;
  -webkit-overflow-scrolling: touch;
}

.page-faq .faq-index-list li {
  flex: 0 0 auto;
}

.page-faq .faq-index-link {
  display: flex;
  align-items: baseline;
  gap: 8px;
  padding: 8px 12px;
  border: 1px solid var(--line);
  border-left: 2px solid var(--line);
  border-radius: 2px 10px 2px 10px;
  background: var(--panel);
  font-size: 13px;
  color: var(--cream);
  text-decoration: none;
  white-space: nowrap;
  transition: border-color .18s var(--ease), color .18s var(--ease), background .18s var(--ease);
}

.page-faq .faq-index-num {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--cyan);
}

.page-faq .faq-index-link:hover,
.page-faq .faq-index-link:focus-visible {
  border-color: var(--cyan-edge);
  border-left-color: var(--cyan);
  background: var(--panel-2);
}

.page-faq .faq-index-note {
  margin: 12px 0 14px;
  font-size: 12.5px;
  line-height: 1.7;
  color: var(--fog);
  max-width: 40ch;
}

/* ---------- 分组 ---------- */
.page-faq .faq-body {
  min-width: 0;
}

.page-faq .faq-group {
  --faq-accent: var(--cyan);
  min-width: 0;
}

.page-faq .faq-group:nth-of-type(1) { --faq-accent: var(--cyan); }
.page-faq .faq-group:nth-of-type(2) { --faq-accent: var(--moss); }
.page-faq .faq-group:nth-of-type(3) { --faq-accent: var(--magenta); }
.page-faq .faq-group:nth-of-type(4) { --faq-accent: var(--amber); }
.page-faq .faq-group:nth-of-type(5) { --faq-accent: var(--clay); }

.page-faq .faq-group + .faq-group {
  margin-top: clamp(30px, 6vw, 64px);
  padding-top: clamp(22px, 5vw, 44px);
  border-top: 1px solid var(--line);
}

.page-faq .faq-group-head {
  display: flex;
  align-items: flex-start;
  gap: clamp(12px, 3vw, 22px);
  margin-bottom: clamp(16px, 3vw, 26px);
}

.page-faq .faq-group-num {
  flex: 0 0 auto;
  font-family: var(--font-display);
  font-size: clamp(42px, 10vw, 72px);
  font-weight: 800;
  line-height: .8;
  letter-spacing: -.03em;
  color: var(--faq-accent);
}

.page-faq .faq-group-headtext {
  min-width: 0;
  padding-top: 2px;
}

.page-faq .faq-group-title {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(22px, 5vw, 34px);
  font-weight: 800;
  letter-spacing: -.01em;
  line-height: 1.15;
  color: var(--cream);
}

.page-faq .faq-group-lead {
  margin: 8px 0 0;
  max-width: 48ch;
  font-size: 14px;
  line-height: 1.7;
  color: var(--fog);
  padding-left: 10px;
  border-left: 2px solid var(--faq-accent);
}

/* ---------- 问答折叠 ---------- */
.page-faq .faq-list {
  min-width: 0;
}

.page-faq .faq-item {
  margin-bottom: 10px;
  border: 1px solid var(--line);
  border-left: 2px solid var(--line);
  border-radius: 2px 12px 2px 12px;
  background: var(--panel);
  transition: background .2s var(--ease), border-color .2s var(--ease);
}

.page-faq .faq-item[open] {
  border-left-color: var(--faq-accent);
  background: var(--panel-2);
}

.page-faq .faq-item > summary {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  padding: 14px 16px;
  cursor: pointer;
  list-style: none;
  font-size: 15px;
  font-weight: 600;
  line-height: 1.6;
  color: var(--cream);
}

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

.page-faq .faq-item > summary:hover .faq-q,
.page-faq .faq-item > summary:focus-visible .faq-q {
  color: var(--faq-accent);
}

.page-faq .faq-q {
  min-width: 0;
  transition: color .18s var(--ease);
}

.page-faq .faq-mark {
  position: relative;
  flex: 0 0 auto;
  width: 18px;
  height: 18px;
  margin-left: auto;
  margin-top: 3px;
  border: 1px solid var(--line);
  border-radius: 50%;
}

.page-faq .faq-mark::before,
.page-faq .faq-mark::after {
  content: "";
  position: absolute;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);
  background: var(--fog);
}

.page-faq .faq-mark::before {
  width: 8px;
  height: 1px;
}

.page-faq .faq-mark::after {
  width: 1px;
  height: 8px;
  transition: opacity .2s var(--ease);
}

.page-faq .faq-item[open] .faq-mark {
  border-color: var(--faq-accent);
}

.page-faq .faq-item[open] .faq-mark::before {
  background: var(--faq-accent);
}

.page-faq .faq-item[open] .faq-mark::after {
  opacity: 0;
}

.page-faq .faq-a {
  padding: 0 16px 16px;
  max-width: 68ch;
}

.page-faq .faq-a p {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.82;
  color: var(--fog);
}

.page-faq .faq-a a {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid var(--cyan-edge);
}

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

.page-faq .faq-steps {
  list-style: none;
  counter-reset: faqstep;
  margin: 12px 0 0;
  padding: 0;
}

.page-faq .faq-steps li {
  counter-increment: faqstep;
  position: relative;
  padding-left: 30px;
  margin-top: 8px;
  font-size: 14px;
  line-height: 1.7;
  color: var(--cream);
}

.page-faq .faq-steps li::before {
  content: counter(faqstep, decimal-leading-zero);
  position: absolute;
  left: 0;
  top: 2px;
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--faq-accent);
  border-left: 1px solid var(--faq-accent);
  padding-left: 6px;
}

/* ---------- 图片 ---------- */
.page-faq .faq-figure {
  margin: 0 0 clamp(16px, 3vw, 24px);
  border: 1px solid var(--line);
  border-radius: 2px 12px 2px 12px;
  background: var(--panel-2);
  overflow: hidden;
}

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

.page-faq .faq-caption {
  padding: 10px 14px;
  border-top: 1px dashed var(--line-soft);
  font-family: var(--font-mono);
  font-size: 11.5px;
  line-height: 1.6;
  color: var(--fog);
}

.page-faq .faq-figure--side {
  margin-bottom: 0;
}

/* ---------- 版本读数 ---------- */
.page-faq .faq-figures {
  list-style: none;
  margin: 0 0 clamp(16px, 3vw, 24px);
  padding: 0;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
  border-radius: 2px 12px 2px 12px;
  overflow: hidden;
}

.page-faq .faq-figures li {
  padding: 14px 14px 16px;
  background: var(--panel);
}

.page-faq .faq-fig-value {
  display: block;
  font-family: var(--font-mono);
  font-size: clamp(20px, 4.6vw, 28px);
  font-weight: 600;
  letter-spacing: -.02em;
  color: var(--amber);
}

.page-faq .faq-fig-label {
  display: block;
  margin-top: 6px;
  font-size: 12px;
  line-height: 1.5;
  color: var(--fog);
}

/* ---------- 结尾联系 ---------- */
.page-faq .faq-cta-section {
  padding-bottom: clamp(36px, 7vw, 80px);
}

.page-faq .faq-cta {
  position: relative;
  display: grid;
  gap: clamp(18px, 3vw, 28px);
  padding: clamp(20px, 4vw, 40px);
  border: 1px solid var(--line);
  border-radius: 2px var(--radius) 2px var(--radius);
  background:
    radial-gradient(120% 140% at 100% 0%, rgba(255, 77, 157, .12), transparent 60%),
    radial-gradient(100% 120% at 0% 100%, rgba(55, 230, 212, .1), transparent 58%),
    var(--panel);
  overflow: hidden;
}

.page-faq .faq-cta h2 {
  margin: 8px 0 0;
  font-family: var(--font-display);
  font-size: clamp(24px, 5.4vw, 40px);
  font-weight: 800;
  line-height: 1.12;
  letter-spacing: -.01em;
  color: var(--cream);
}

.page-faq .faq-cta-text p:not(.eyebrow) {
  margin: 12px 0 0;
  max-width: 58ch;
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--fog);
}

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

.page-faq .faq-contact-list {
  list-style: none;
  margin: 0;
  padding: 14px 0 0;
  border-top: 1px dashed var(--line-soft);
  display: grid;
  gap: 10px;
}

.page-faq .faq-contact-list li {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 8px;
}

.page-faq .faq-cl-label {
  flex: 0 0 auto;
  min-width: 64px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .1em;
  color: var(--fog);
}

.page-faq .faq-cl-value {
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--cream);
  word-break: break-word;
}

/* ---------- 断点 ---------- */
@media (min-width: 560px) {
  .page-faq .faq-figures {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-faq .faq-contact-list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 8px 20px;
  }

  .page-faq .faq-a,
  .page-faq .faq-item > summary {
    padding-left: 20px;
    padding-right: 20px;
  }

  .page-faq .faq-a {
    padding-bottom: 20px;
  }
}

@media (min-width: 760px) {
  .page-faq .faq-split {
    display: grid;
    grid-template-columns: minmax(0, 1fr) 260px;
    gap: clamp(16px, 3vw, 26px);
    align-items: start;
  }

  .page-faq .faq-figure--side {
    position: sticky;
    top: 96px;
  }
}

@media (min-width: 960px) {
  .page-faq .faq-shell {
    grid-template-columns: 268px minmax(0, 1fr);
    gap: clamp(28px, 4vw, 56px);
  }

  .page-faq .faq-index {
    position: sticky;
    top: 96px;
    padding-bottom: 0;
    border-bottom: 0;
    border-right: 1px dashed var(--line-soft);
    padding-right: 18px;
  }

  .page-faq .faq-index-list {
    flex-direction: column;
    overflow: visible;
    padding-bottom: 0;
  }

  .page-faq .faq-index-list li {
    width: 100%;
  }

  .page-faq .faq-index-link {
    justify-content: flex-start;
    width: 100%;
    padding: 10px 12px;
  }

  .page-faq .faq-index-note {
    margin-top: 16px;
  }

  .page-faq .faq-item > summary {
    padding: 16px 22px;
    font-size: 15.5px;
  }

  .page-faq .faq-a {
    padding: 0 22px 20px;
  }

  .page-faq .faq-cta {
    grid-template-columns: minmax(0, 1.35fr) minmax(0, 1fr);
    align-items: start;
  }

  .page-faq .faq-cta-actions {
    grid-column: 2;
    justify-content: flex-start;
  }

  .page-faq .faq-contact-list {
    grid-column: 1 / -1;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 10px 24px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-jump a,
  .page-faq .faq-index-link,
  .page-faq .faq-item,
  .page-faq .faq-mark::after,
  .page-faq .faq-q {
    transition: none;
  }

  .page-faq .faq-jump a:hover,
  .page-faq .faq-jump a:focus-visible {
    transform: none;
  }
}
<<<END>>>