.page-faq {
  --faq-pad: clamp(36px, 6vw, 72px);
  background: var(--dfb-900);
  color: var(--dfb-paper);
  overflow-x: hidden;
}

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

/* ---------- 首屏 ---------- */
.page-faq .qa-lead {
  padding: clamp(20px, 4vw, 44px) 0 clamp(36px, 6vw, 72px);
  background:
    radial-gradient(120% 90% at 88% -10%, rgba(60, 242, 214, .12), transparent 58%),
    linear-gradient(180deg, rgba(20, 50, 42, .55), transparent 70%);
}

.page-faq .qa-lead .dfb-breadcrumb {
  margin-bottom: clamp(24px, 4vw, 44px);
}

.page-faq .qa-lead__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(24px, 4vw, 40px);
  align-items: end;
}

.page-faq .qa-lead__title {
  margin: 12px 0 20px;
  font-size: clamp(38px, 9.5vw, 104px);
  line-height: .94;
  letter-spacing: -.035em;
  font-family: var(--dfb-font-display);
}

.page-faq .qa-lead__title span {
  display: block;
  font-weight: 200;
  color: var(--dfb-paper);
}

.page-faq .qa-lead__title strong {
  display: block;
  font-weight: 800;
  color: var(--dfb-cyan);
}

.page-faq .qa-lead__lede {
  max-width: 54ch;
  margin: 0;
  font-size: 16px;
  line-height: 1.8;
  color: var(--dfb-mist);
}

.page-faq .qa-lead__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 26px;
}

.page-faq .qa-side-card {
  display: grid;
  gap: 12px;
  padding: 18px 20px;
  border: 1px solid var(--dfb-line);
  border-radius: 2px;
  background: rgba(20, 50, 42, .55);
  backdrop-filter: blur(10px);
}

.page-faq .qa-side-row {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 16px;
  padding-bottom: 10px;
  border-bottom: 1px solid rgba(31, 74, 61, .8);
}

.page-faq .qa-side-row:last-child {
  padding-bottom: 0;
  border-bottom: 0;
}

.page-faq .qa-side-key {
  flex: none;
  font-size: 13px;
  letter-spacing: .04em;
  color: var(--dfb-mist);
}

.page-faq .qa-side-val {
  font-size: 14px;
  line-height: 1.6;
  text-align: right;
  color: var(--dfb-cyan);
}

.page-faq .qa-side-val:not(.dfb-mono) {
  color: var(--dfb-peach);
}

/* ---------- 两步刷新 ---------- */
.page-faq .qa-steps {
  padding: var(--faq-pad) 0;
  border-top: 1px solid var(--dfb-line);
}

.page-faq .qa-steps__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(22px, 3vw, 36px);
}

.page-faq .qa-steps__note {
  margin: 14px 0 0;
  max-width: 46ch;
  font-size: 15px;
  line-height: 1.8;
  color: rgba(246, 241, 231, .74);
}

.page-faq .qa-step-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 14px;
}

.page-faq .qa-step {
  position: relative;
  padding: 18px 20px 18px 68px;
  background: var(--dfb-800);
  border-left: 2px solid var(--dfb-cyan);
}

.page-faq .qa-step:nth-child(2) {
  border-left-color: var(--dfb-orange);
}

.page-faq .qa-step .dfb-h3 {
  margin: 0;
  font-size: 19px;
  line-height: 1.4;
}

.page-faq .qa-step__num {
  position: absolute;
  left: 18px;
  top: 17px;
  font-size: 24px;
  font-weight: 700;
  line-height: 1;
  color: var(--dfb-cyan);
}

.page-faq .qa-step:nth-child(2) .qa-step__num {
  color: var(--dfb-orange);
}

.page-faq .qa-step__text {
  margin: 8px 0 0;
  font-size: 15px;
  line-height: 1.75;
  color: rgba(246, 241, 231, .76);
}

.page-faq .qa-steps__figure {
  margin: clamp(28px, 4vw, 44px) 0 0;
}

/* ---------- 问答区 ---------- */
.page-faq .qa-body {
  padding: var(--faq-pad) 0;
  border-top: 1px solid var(--dfb-line);
}

.page-faq .qa-body__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(24px, 3vw, 40px);
}

.page-faq .qa-index__title {
  margin: 10px 0 18px;
  font-size: 22px;
}

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

.page-faq .qa-filter__btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 9px 14px;
  font: inherit;
  font-size: 14px;
  line-height: 1.4;
  color: var(--dfb-paper);
  background: transparent;
  border: 1px solid var(--dfb-line);
  border-radius: 999px;
  cursor: pointer;
  transition:
    border-color var(--dfb-fast) var(--dfb-ease),
    background-color var(--dfb-fast) var(--dfb-ease),
    color var(--dfb-fast) var(--dfb-ease);
}

.page-faq .qa-filter__btn:hover {
  border-color: var(--dfb-cyan);
}

.page-faq .qa-filter__btn[aria-pressed="true"] {
  color: var(--dfb-lime);
  border-color: var(--dfb-lime);
  background: rgba(214, 255, 75, .08);
}

.page-faq .qa-filter__count {
  font-family: var(--dfb-font-mono);
  font-size: 12px;
  color: var(--dfb-mist);
}

.page-faq .qa-filter__btn[aria-pressed="true"] .qa-filter__count {
  color: var(--dfb-lime);
}

.page-faq .qa-filter__status {
  margin: 14px 0 0;
  font-family: var(--dfb-font-mono);
  font-size: 13px;
  color: var(--dfb-mist);
}

.page-faq .qa-index__hint {
  margin: 10px 0 0;
  font-size: 13px;
  line-height: 1.8;
  color: rgba(154, 175, 166, .85);
}

.page-faq .qa-list {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 12px;
  align-items: start;
}

.page-faq .qa-item {
  border: 1px solid var(--dfb-line);
  border-radius: 2px;
  background: var(--dfb-800);
  transition:
    border-color var(--dfb-fast) var(--dfb-ease),
    background-color var(--dfb-fast) var(--dfb-ease);
}

.page-faq .qa-item:hover {
  border-color: rgba(60, 242, 214, .45);
}

.page-faq .qa-item[open] {
  border-color: var(--dfb-cyan);
  background: var(--dfb-700);
}

.page-faq .qa-item[hidden] {
  display: none;
}

.page-faq .qa-item__head {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 16px 18px;
  cursor: pointer;
  list-style: none;
}

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

.page-faq .qa-item__num {
  flex: none;
  padding-top: 3px;
  font-size: 13px;
  letter-spacing: .06em;
  color: var(--dfb-cyan);
}

.page-faq .qa-item__q {
  flex: 1 1 auto;
  font-size: 16px;
  font-weight: 600;
  line-height: 1.55;
  color: var(--dfb-paper);
}

.page-faq .qa-item__tog {
  position: relative;
  flex: none;
  width: 14px;
  height: 14px;
  margin-top: 6px;
}

.page-faq .qa-item__tog::before,
.page-faq .qa-item__tog::after {
  content: "";
  position: absolute;
  background: var(--dfb-cyan);
  transition:
    transform var(--dfb-fast) var(--dfb-ease),
    opacity var(--dfb-fast) var(--dfb-ease);
}

.page-faq .qa-item__tog::before {
  left: 0;
  top: 6px;
  width: 14px;
  height: 2px;
}

.page-faq .qa-item__tog::after {
  left: 6px;
  top: 0;
  width: 2px;
  height: 14px;
}

.page-faq .qa-item[open] .qa-item__tog::after {
  transform: scaleY(0);
  opacity: 0;
}

.page-faq .qa-item__body {
  padding: 0 18px 18px 48px;
}

.page-faq .qa-item__body p {
  margin: 0;
  font-size: 15px;
  line-height: 1.8;
  color: rgba(246, 241, 231, .78);
}

.page-faq .qa-item[open] .qa-item__body {
  animation: qa-faq-fade var(--dfb-mid) var(--dfb-ease) both;
}

@keyframes qa-faq-fade {
  from {
    opacity: 0;
    transform: translateY(-4px);
  }
  to {
    opacity: 1;
    transform: none;
  }
}

/* ---------- 版本号区块 ---------- */
.page-faq .qa-version {
  padding: var(--faq-pad) 0;
  background: var(--dfb-800);
  border-top: 1px solid var(--dfb-line);
  border-bottom: 1px solid var(--dfb-line);
}

.page-faq .qa-version__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(24px, 4vw, 48px);
  align-items: center;
}

.page-faq .qa-version__para {
  margin: 14px 0 0;
  max-width: 50ch;
  font-size: 15px;
  line-height: 1.8;
  color: rgba(246, 241, 231, .78);
}

.page-faq .qa-version__list {
  list-style: none;
  margin: 22px 0 26px;
  padding: 0;
  display: grid;
  gap: 10px;
}

.page-faq .qa-version__list li {
  padding-left: 14px;
  border-left: 2px solid var(--dfb-line);
  font-size: 15px;
  line-height: 1.7;
  color: rgba(246, 241, 231, .76);
}

.page-faq .qa-version__list b {
  display: inline-block;
  min-width: 66px;
  margin-right: 10px;
  font-family: var(--dfb-font-mono);
  font-size: 13px;
  font-weight: 500;
  color: var(--dfb-orange);
}

.page-faq .qa-version__figure {
  margin: 0;
}

/* ---------- 联系兜底 ---------- */
.page-faq .qa-help {
  padding: var(--faq-pad) 0;
}

.page-faq .qa-help__panel {
  padding: clamp(24px, 4vw, 44px);
  border: 1px solid var(--dfb-line);
  border-radius: 2px;
  background: linear-gradient(155deg, rgba(20, 50, 42, .9), rgba(7, 17, 14, .92));
}

.page-faq .qa-help__para {
  margin: 14px 0 0;
  max-width: 52ch;
  font-size: 15px;
  line-height: 1.8;
  color: rgba(246, 241, 231, .76);
}

.page-faq .qa-help__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 18px;
  margin: 26px 0 28px;
}

.page-faq .qa-help__card {
  padding: 4px 0 4px 16px;
  border-left: 2px solid var(--dfb-orange);
}

.page-faq .qa-help__key {
  display: block;
  margin-bottom: 6px;
  font-size: 12px;
  letter-spacing: .12em;
  color: var(--dfb-mist);
}

.page-faq .qa-help__val {
  display: block;
  font-size: 17px;
  font-weight: 600;
  line-height: 1.5;
  color: var(--dfb-paper);
  overflow-wrap: anywhere;
}

.page-faq .qa-help__card p {
  margin: 8px 0 0;
  font-size: 14px;
  line-height: 1.7;
  color: rgba(246, 241, 231, .7);
}

/* ---------- 响应式 ---------- */
@media (min-width: 720px) {
  .page-faq .qa-list {
    grid-template-columns: minmax(0, 1.1fr) minmax(0, .9fr);
  }

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

@media (min-width: 860px) {
  .page-faq .qa-lead__grid {
    grid-template-columns: minmax(0, 1.55fr) minmax(0, 1fr);
    gap: 44px;
  }

  .page-faq .qa-steps__grid {
    grid-template-columns: minmax(0, .82fr) minmax(0, 1.18fr);
    gap: 48px;
    align-items: start;
  }

  .page-faq .qa-version__grid {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1.02fr);
  }
}

@media (min-width: 980px) {
  .page-faq .qa-body__grid {
    grid-template-columns: minmax(0, 236px) minmax(0, 1fr);
    gap: 48px;
    align-items: start;
  }

  .page-faq .qa-index {
    position: sticky;
    top: 96px;
  }

  .page-faq .qa-filter {
    flex-direction: column;
    align-items: stretch;
  }

  .page-faq .qa-filter__btn {
    justify-content: space-between;
    border-radius: 2px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .qa-item[open] .qa-item__body {
    animation: none;
  }

  .page-faq .qa-filter__btn,
  .page-faq .qa-item,
  .page-faq .qa-item__tog::before,
  .page-faq .qa-item__tog::after {
    transition: none;
  }
}
<<<END>>>