.page-faq {
  --faq-stick: 92px;
  color: var(--mist);
}

.page-faq .faq-crumbs {
  padding-top: 18px;
  padding-bottom: 4px;
}

/* ---------- 首屏：对角色块 + 非对称双栏 ---------- */
.page-faq .faq-hero {
  position: relative;
  margin-top: 14px;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  background:
    linear-gradient(112deg, rgba(11, 43, 34, 0.97) 0 50%, rgba(16, 56, 44, 0.97) 50% 100%);
  overflow: hidden;
}

.page-faq .faq-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background-image:
    repeating-linear-gradient(90deg, rgba(42, 90, 73, 0.55) 0 1px, transparent 1px 120px),
    repeating-linear-gradient(0deg, rgba(42, 90, 73, 0.3) 0 1px, transparent 1px 120px);
  opacity: 0.55;
}

.page-faq .faq-hero__inner {
  position: relative;
  display: grid;
  gap: 32px;
  padding-top: 44px;
  padding-bottom: 48px;
}

.page-faq .faq-hero__title {
  margin: 14px 0 0;
  font-family: var(--sans);
  font-weight: 900;
  font-size: clamp(28px, 7.2vw, 46px);
  line-height: 1.16;
  letter-spacing: -0.02em;
  color: var(--mist);
  max-width: 20ch;
}

.page-faq .faq-hero__lead {
  margin: 18px 0 0;
  max-width: 56ch;
  font-size: 16px;
  line-height: 1.78;
  color: var(--sage);
}

.page-faq .faq-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 24px;
}

.page-faq .faq-hero__side {
  border-top: 1px solid var(--line);
  padding-top: 20px;
}

.page-faq .faq-hero__side-label {
  margin: 0 0 12px;
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--amber);
}

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

.page-faq .faq-quick a {
  display: flex;
  align-items: baseline;
  gap: 12px;
  padding: 12px 14px;
  border: 1px solid var(--line);
  background: rgba(6, 30, 24, 0.5);
  color: var(--mist);
  text-decoration: none;
  font-size: 15px;
  line-height: 1.5;
  transition: border-color 0.18s var(--ease), color 0.18s var(--ease), transform 0.18s var(--ease);
}

.page-faq .faq-quick a .mono {
  color: var(--cyan);
  font-size: 12px;
  letter-spacing: 0.1em;
}

.page-faq .faq-quick a:hover,
.page-faq .faq-quick a:focus-visible {
  border-color: var(--cyan);
  color: var(--cyan);
  transform: translateY(-2px);
}

.page-faq .faq-quick a:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 2px;
}

/* ---------- 主体：左索引 + 右问答 ---------- */
.page-faq .faq-layout {
  display: grid;
  gap: 36px;
  padding-top: 44px;
  padding-bottom: 72px;
}

.page-faq .faq-index__label {
  margin: 0 0 12px;
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--sage);
}

.page-faq .faq-index__list {
  list-style: none;
  margin: 0;
  padding: 0;
  border-top: 1px solid var(--line);
}

.page-faq .faq-index__list a {
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: baseline;
  gap: 4px 12px;
  padding: 12px 10px;
  border-bottom: 1px solid var(--line);
  color: var(--mist);
  text-decoration: none;
  transition: background 0.18s var(--ease), color 0.18s var(--ease);
}

.page-faq .faq-index__num {
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--cyan);
}

.page-faq .faq-index__txt {
  font-weight: 700;
  font-size: 15px;
  line-height: 1.5;
}

.page-faq .faq-index__cnt {
  font-size: 11px;
  letter-spacing: 0.08em;
  color: var(--sage);
}

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

.page-faq .faq-index__list a:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: -2px;
}

.page-faq .faq-index__hint {
  margin: 14px 0 0;
  font-size: 13px;
  line-height: 1.7;
  color: var(--sage);
}

.page-faq .faq-fig {
  margin: 24px 0 0;
}

.page-faq .faq-fig img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  border: 1px solid var(--line);
  background: var(--ink-2);
  object-fit: cover;
}

.page-faq .faq-fig--inline {
  margin-top: 16px;
}

.page-faq .faq-fig__cap {
  margin-top: 8px;
  font-size: 12px;
  line-height: 1.6;
  color: var(--sage);
  letter-spacing: 0.02em;
}

/* ---------- 问答组 ---------- */
.page-faq .qa-group {
  border-top: 1px solid var(--line);
}

.page-faq .qa-group + .qa-group {
  margin-top: 48px;
}

.page-faq .qa-group__head {
  position: relative;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px 12px;
  padding: 20px 0 12px;
  border-bottom: 1px solid var(--line);
}

.page-faq .qa-group__head::before {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  top: -1px;
  height: 7px;
  background: repeating-linear-gradient(90deg, var(--line) 0 1px, transparent 1px 22px);
  opacity: 0.7;
}

.page-faq .qa-group__idx {
  font-size: 13px;
  letter-spacing: 0.12em;
  color: var(--cyan);
}

.page-faq .qa-group__title {
  margin: 0;
  font-family: var(--sans);
  font-weight: 800;
  font-size: clamp(20px, 4.4vw, 27px);
  letter-spacing: -0.01em;
  color: var(--mist);
  flex: 1 1 auto;
  min-width: 0;
}

/* ---------- 可展开问答 ---------- */
.page-faq .qa {
  margin-top: 10px;
  border: 1px solid var(--line);
  background: rgba(11, 43, 34, 0.62);
  transition: border-color 0.2s var(--ease), background 0.2s var(--ease);
}

.page-faq .qa summary {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  align-items: center;
  gap: 12px;
  padding: 14px 14px;
  cursor: pointer;
  list-style: none;
  transition: color 0.18s var(--ease);
}

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

.page-faq .qa__num {
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--cyan);
}

.page-faq .qa__q {
  font-size: 15px;
  font-weight: 700;
  line-height: 1.55;
  color: var(--mist);
}

.page-faq .qa__dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--line);
  transition: background 0.2s var(--ease), box-shadow 0.2s var(--ease);
}

.page-faq .qa summary:hover .qa__q {
  color: var(--cyan);
}

.page-faq .qa summary:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: -2px;
}

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

.page-faq .qa[open] .qa__dot {
  background: var(--cyan);
  box-shadow: 0 0 0 3px rgba(124, 255, 196, 0.18);
}

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

.page-faq .qa__body {
  margin: 0 14px 16px;
  padding: 14px 0 0 12px;
  border-top: 1px solid var(--line);
  border-left: 1px solid var(--line);
  font-size: 15px;
  line-height: 1.8;
  color: var(--sage);
}

.page-faq .qa__body > :first-child {
  margin-top: 0;
}

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

.page-faq .qa__body p {
  margin: 0 0 12px;
}

.page-faq .qa__body a {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(124, 255, 196, 0.45);
}

.page-faq .qa__body a:hover,
.page-faq .qa__body a:focus-visible {
  border-bottom-color: var(--cyan);
  color: var(--mist);
}

.page-faq .qa__body a:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 2px;
}

.page-faq .qa__body .copy {
  margin-top: 2px;
}

/* ---------- 版本号卡片 ---------- */
.page-faq .ver-card {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px 16px;
  margin-top: 14px;
  padding: 14px 16px;
  border: 1px solid var(--line);
  border-left: 3px solid var(--amber);
  background: rgba(6, 30, 24, 0.66);
}

.page-faq .ver-card__label {
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--sage);
}

.page-faq .ver-card__val {
  font-size: 24px;
  letter-spacing: 0.08em;
  color: var(--amber);
  font-weight: 700;
}

/* ---------- 底部提示条 ---------- */
.page-faq .faq-help-strip {
  display: grid;
  gap: 16px;
  margin-top: 48px;
  padding: 24px 20px;
  border: 1px solid var(--line);
  border-left: 3px solid var(--coral);
  background: linear-gradient(100deg, rgba(74, 22, 32, 0.9) 0 46%, rgba(16, 56, 44, 0.9) 46% 100%);
}

.page-faq .faq-help-strip__text {
  margin: 0;
  font-size: 15px;
  line-height: 1.75;
  color: var(--mist);
}

.page-faq .faq-help-strip .btn {
  justify-self: start;
}

/* ---------- 平板与桌面 ---------- */
@media (min-width: 720px) {
  .page-faq .faq-hero__actions {
    margin-top: 28px;
  }

  .page-faq .qa summary {
    padding: 16px 18px;
  }

  .page-faq .qa__q {
    font-size: 16px;
  }

  .page-faq .qa__body {
    margin: 0 18px 18px;
    padding-left: 16px;
  }

  .page-faq .faq-help-strip {
    grid-template-columns: minmax(0, 1fr) auto;
    align-items: center;
    padding: 26px 24px;
  }
}

@media (min-width: 900px) {
  .page-faq .faq-hero__inner {
    grid-template-columns: minmax(0, 7fr) minmax(0, 4fr);
    align-items: end;
    gap: 48px;
    padding-top: 56px;
    padding-bottom: 60px;
  }

  .page-faq .faq-hero__side {
    border-top: 0;
    border-left: 1px solid var(--line);
    padding-top: 0;
    padding-left: 24px;
  }

  .page-faq .faq-layout {
    grid-template-columns: 292px minmax(0, 1fr);
    gap: 56px;
    padding-top: 56px;
  }

  .page-faq .faq-index__sticky {
    position: sticky;
    top: calc(var(--faq-stick) + 12px);
  }
}

@media (min-width: 1200px) {
  .page-faq .faq-layout {
    grid-template-columns: 320px minmax(0, 1fr);
    gap: 72px;
  }

  .page-faq .qa__q {
    font-size: 17px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-quick a,
  .page-faq .qa,
  .page-faq .qa__dot,
  .page-faq .qa__q {
    transition: none;
  }

  .page-faq .faq-quick a:hover {
    transform: none;
  }
}
<<<END>>>