.page-faq {
  --faq-index-w: 236px;
  --faq-gap: clamp(28px, 4vw, 64px);
  --faq-card-bg: linear-gradient(180deg, rgba(18, 28, 56, .82), rgba(11, 18, 38, .82));
  padding-bottom: clamp(56px, 8vw, 112px);
}

.page-faq .breadcrumbs {
  margin-top: clamp(20px, 3vw, 36px);
  font-size: 13px;
  color: var(--mist);
}

.page-faq .breadcrumbs a {
  color: var(--mist);
  text-decoration: none;
}

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

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  padding: clamp(26px, 4vw, 52px) 0 clamp(24px, 3.5vw, 44px);
  border-bottom: var(--line);
}

.page-faq .faq-hero h1 {
  margin: 14px 0 20px;
  font-size: clamp(32px, 7vw, 68px);
  font-weight: 300;
  line-height: 1.08;
  letter-spacing: -0.02em;
  max-width: 20ch;
}

.page-faq .faq-hero__lead {
  max-width: 60ch;
  margin: 0;
  color: var(--mist);
  font-size: clamp(15px, 1.6vw, 17px);
  line-height: 1.85;
}

.page-faq .faq-facts {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 10px;
  margin: clamp(22px, 3vw, 34px) 0 clamp(18px, 2.4vw, 26px);
  padding: 0;
  list-style: none;
}

.page-faq .faq-facts li {
  padding-left: 12px;
  border-left: 1px solid var(--steel);
}

.page-faq .faq-facts__num {
  display: block;
  font-size: clamp(22px, 3.6vw, 34px);
  line-height: 1.1;
  color: var(--gold);
}

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

.page-faq .faq-jump {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.page-faq .faq-jump .tag {
  display: inline-flex;
  align-items: center;
  padding: 6px 12px;
  text-decoration: none;
  border: 1px solid var(--steel);
  background: rgba(18, 28, 56, .55);
  color: var(--text);
  transition: transform .2s var(--ease), border-color .2s var(--ease), background-color .2s var(--ease);
}

.page-faq .faq-jump .tag:hover,
.page-faq .faq-jump .tag:focus-visible {
  transform: translateY(-2px);
  border-color: var(--violet);
  background: rgba(156, 124, 255, .16);
}

/* ---------- 主体两栏 ---------- */
.page-faq .faq-shell {
  display: grid;
  gap: var(--faq-gap);
  margin-top: clamp(30px, 4.5vw, 60px);
}

.page-faq .faq-index {
  border: 1px solid var(--steel);
  background: var(--panel);
  padding: 18px 16px;
  border-radius: var(--radius);
}

.page-faq .faq-index__caption {
  margin: 0 0 14px;
  font-size: 11px;
  letter-spacing: .18em;
  color: var(--gold);
}

.page-faq .faq-index__list {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 2px;
  counter-reset: none;
}

.page-faq .faq-index__list a {
  display: grid;
  grid-template-columns: 32px minmax(0, 1fr);
  align-items: baseline;
  gap: 4px;
  padding: 9px 8px;
  border-left: 2px solid transparent;
  color: var(--mist);
  font-size: 14px;
  line-height: 1.5;
  text-decoration: none;
  transition: color .2s var(--ease), border-color .2s var(--ease), background-color .2s var(--ease);
}

.page-faq .faq-index__list a .u-mono {
  font-size: 11px;
  color: var(--steel);
}

.page-faq .faq-index__list a:hover,
.page-faq .faq-index__list a:focus-visible {
  color: var(--text);
  border-left-color: var(--violet);
  background: rgba(156, 124, 255, .12);
}

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

.page-faq .faq-index__foot {
  margin-top: 18px;
  padding-top: 16px;
  border-top: var(--line);
}

.page-faq .faq-index__foot p {
  margin: 0 0 12px;
  font-size: 12.5px;
  line-height: 1.7;
  color: var(--mist);
}

.page-faq .faq-index__foot .btn {
  width: 100%;
  text-align: center;
}

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

.page-faq .faq-block {
  padding-top: clamp(24px, 3.4vw, 40px);
  margin-bottom: clamp(38px, 5.5vw, 68px);
  border-top: 1px solid var(--steel);
}

.page-faq .faq-block:first-child {
  padding-top: 0;
  border-top: none;
}

.page-faq .faq-block__head {
  display: grid;
  gap: 10px;
  margin-bottom: clamp(20px, 2.6vw, 30px);
}

.page-faq .faq-block__head .index-num {
  font-size: 12px;
  letter-spacing: .2em;
  color: var(--gold);
}

.page-faq .faq-block__head h2 {
  margin: 0;
  font-size: clamp(24px, 3.6vw, 38px);
  font-weight: 300;
  line-height: 1.22;
  letter-spacing: -0.01em;
  max-width: 24ch;
}

.page-faq .faq-block__lead {
  margin: 0;
  max-width: 62ch;
  color: var(--mist);
  font-size: 15px;
  line-height: 1.85;
}

/* ---------- 四步流程 ---------- */
.page-faq .steps {
  display: grid;
  gap: 12px;
  margin: 0 0 clamp(20px, 3vw, 30px);
  padding: 0;
  list-style: none;
}

.page-faq .step {
  position: relative;
  padding: 18px 18px 20px;
  border: 1px solid var(--steel);
  border-top: 2px solid var(--violet);
  background: var(--faq-card-bg);
  border-radius: var(--radius);
}

.page-faq .step__no {
  display: block;
  font-size: clamp(26px, 4vw, 34px);
  line-height: 1;
  color: var(--violet);
  opacity: .85;
}

.page-faq .step h3 {
  margin: 10px 0 8px;
  font-size: 17px;
  font-weight: 500;
  color: var(--text);
}

.page-faq .step p {
  margin: 0;
  font-size: 14px;
  line-height: 1.8;
  color: var(--mist);
}

/* ---------- 配图 ---------- */
.page-faq .faq-figure {
  margin: 0 0 clamp(24px, 3.4vw, 36px);
  border: 1px solid var(--steel);
  background: var(--bay);
  border-radius: var(--radius);
  overflow: hidden;
}

.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(--steel);
  font-size: 12px;
  line-height: 1.7;
  color: var(--mist);
  font-family: var(--font-mono);
}

/* ---------- 问答手风琴 ---------- */
.page-faq .qa-group {
  display: grid;
  gap: 8px;
}

.page-faq .qa {
  border: 1px solid var(--steel);
  background: var(--faq-card-bg);
  border-radius: var(--radius);
  transition: border-color .2s var(--ease), box-shadow .2s var(--ease);
}

.page-faq .qa:hover {
  border-color: rgba(156, 124, 255, .45);
}

.page-faq .qa[open] {
  border-color: rgba(156, 124, 255, .7);
  box-shadow: var(--shadow-panel);
}

.page-faq .qa__head {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  align-items: center;
  gap: 12px;
  padding: 15px 16px;
  cursor: pointer;
  list-style: none;
  color: var(--text);
}

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

.page-faq .qa__head::marker {
  content: "";
}

.page-faq .qa__head:focus-visible {
  outline: 2px solid var(--mint);
  outline-offset: -2px;
}

.page-faq .qa__no {
  font-size: 11px;
  letter-spacing: .08em;
  color: var(--steel);
}

.page-faq .qa__q {
  font-size: clamp(15px, 2vw, 18px);
  font-weight: 400;
  line-height: 1.55;
}

.page-faq .qa__head::after {
  content: "+";
  font-family: var(--font-mono);
  font-size: 20px;
  line-height: 1;
  color: var(--violet);
  transition: transform .2s var(--ease);
}

.page-faq .qa[open] .qa__head::after {
  content: "−";
  color: var(--mint);
}

.page-faq .qa[open] .qa__no {
  color: var(--mint);
}

.page-faq .qa__body {
  padding: 0 16px 16px;
  border-left: 2px solid rgba(55, 230, 196, .5);
  margin-left: 16px;
  padding-left: 14px;
}

.page-faq .qa__body p {
  margin: 0 0 10px;
  font-size: 14.5px;
  line-height: 1.85;
  color: var(--mist);
  max-width: 62ch;
}

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

.page-faq .qa__body a {
  color: var(--mint);
  text-decoration: underline;
  text-underline-offset: 3px;
}

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

/* ---------- 平板栏目展签 ---------- */
.page-faq .tablet-grid {
  display: grid;
  gap: 12px;
  margin: 0 0 clamp(22px, 3vw, 32px);
}

.page-faq .tablet-card {
  padding: 18px 18px 20px;
  border: 1px solid var(--steel);
  border-top: 3px solid var(--steel);
  background: var(--bay);
  border-radius: var(--radius);
  transition: transform .2s var(--ease), box-shadow .2s var(--ease);
}

.page-faq .tablet-card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-lift);
}

.page-faq .tablet-card--live {
  border-top-color: var(--mint);
  box-shadow: inset 0 0 0 1px rgba(55, 230, 196, .16);
}

.page-faq .tablet-card--data {
  border-top-color: var(--violet);
}

.page-faq .tablet-card--replay {
  border-top-color: var(--gold);
}

.page-faq .tablet-card--review {
  border-top-color: var(--alert);
}

.page-faq .tablet-card__tag {
  margin: 0 0 8px;
  font-size: 11px;
  letter-spacing: .16em;
  color: var(--mist);
}

.page-faq .tablet-card h3 {
  margin: 0 0 6px;
  font-size: clamp(20px, 2.6vw, 26px);
  font-weight: 400;
  color: var(--text);
}

.page-faq .tablet-card__pos {
  margin: 0 0 10px;
  font-size: 12px;
  line-height: 1.6;
  color: var(--gold);
  font-family: var(--font-mono);
}

.page-faq .tablet-card__desc {
  margin: 0 0 12px;
  font-size: 14px;
  line-height: 1.8;
  color: var(--mist);
}

.page-faq .tablet-card__use {
  margin: 0;
  padding-top: 10px;
  border-top: 1px dashed var(--steel);
  font-size: 12.5px;
  line-height: 1.6;
  color: var(--text);
}

.page-faq .tablet-card--live .tablet-card__use {
  color: var(--mint);
}

/* ---------- 联系支持 ---------- */
.page-faq .faq-block--support .faq-block__head h2 {
  max-width: 18ch;
}

.page-faq .support-panel {
  display: grid;
  gap: 1px;
  background: var(--steel);
  border: 1px solid var(--steel);
  border-radius: var(--radius);
  overflow: hidden;
  margin-bottom: clamp(18px, 2.6vw, 26px);
}

.page-faq .support-item {
  padding: 18px 18px 20px;
  background: var(--panel);
}

.page-faq .support-item__label {
  margin: 0 0 8px;
  font-size: 11px;
  letter-spacing: .2em;
  color: var(--gold);
}

.page-faq .support-item__value {
  margin: 0 0 8px;
  font-size: clamp(15px, 2vw, 18px);
  color: var(--text);
  word-break: break-word;
}

.page-faq .support-item__note {
  margin: 0;
  font-size: 13px;
  line-height: 1.75;
  color: var(--mist);
}

.page-faq .support-cta {
  display: grid;
  gap: 14px;
  align-items: center;
  padding: 18px;
  border: 1px solid var(--steel);
  border-left: 3px solid var(--mint);
  background: linear-gradient(120deg, rgba(55, 230, 196, .1), rgba(156, 124, 255, .12));
  border-radius: var(--radius);
}

.page-faq .support-cta p {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.7;
  color: var(--text);
}

.page-faq .support-cta .btn {
  justify-self: start;
}

/* ---------- 渐进增强 ---------- */
.page-faq .qa__body,
.page-faq .faq-block[data-reveal] {
  transition: opacity .5s var(--ease), transform .5s var(--ease);
}

.page-faq .faq-block[data-reveal] {
  opacity: 0;
  transform: translateY(10px);
}

.page-faq .faq-block.is-visible {
  opacity: 1;
  transform: none;
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-block[data-reveal] {
    opacity: 1;
    transform: none;
    transition: none;
  }

  .page-faq .qa,
  .page-faq .tablet-card,
  .page-faq .faq-jump .tag {
    transition: none;
  }
}

/* ---------- 响应式 ---------- */
@media (min-width: 600px) {
  .page-faq .steps {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-faq .tablet-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-faq .support-panel {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-faq .support-cta {
    grid-template-columns: minmax(0, 1fr) auto;
  }
}

@media (min-width: 960px) {
  .page-faq .faq-shell {
    grid-template-columns: var(--faq-index-w) minmax(0, 1fr);
    align-items: start;
  }

  .page-faq .faq-index {
    position: sticky;
    top: 28px;
  }

  .page-faq .steps {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .page-faq .tablet-grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .page-faq .qa__head {
    padding: 18px 22px;
  }

  .page-faq .qa__body {
    padding: 0 22px 20px;
    padding-left: 18px;
    margin-left: 22px;
  }

  .page-faq .faq-block__head {
    grid-template-columns: minmax(0, 1fr);
  }
}

@media (min-width: 1200px) {
  .page-faq .faq-hero h1 {
    max-width: 18ch;
  }
}
<<<END>>>