.page-faq {
  --faq-shadow: 6px 6px 0 0 var(--grid);
  --faq-index-w: 244px;
  display: block;
  background: var(--ink);
  color: var(--paper);
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  overflow: hidden;
  padding: 40px 0 36px;
  border-bottom: var(--line-bold);
  background:
    radial-gradient(120% 90% at 8% 0%, rgba(53, 245, 208, 0.09), transparent 62%),
    var(--ink);
}

.page-faq .faq-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background-image: repeating-linear-gradient(
    90deg,
    rgba(26, 34, 41, 0.85) 0 1px,
    transparent 1px 88px
  );
  opacity: 0.6;
}

.page-faq .faq-hero__inner {
  position: relative;
  z-index: 1;
}

.page-faq .faq-hero .breadcrumb {
  margin-bottom: 22px;
}

.page-faq .faq-hero__title {
  margin: 14px 0 0;
  font-family: var(--font-display);
  font-size: clamp(32px, 7vw, 60px);
  font-weight: 800;
  line-height: 0.98;
  letter-spacing: -0.01em;
  color: var(--paper);
  max-width: 15em;
}

.page-faq .faq-hero__lede {
  margin: 18px 0 0;
  max-width: 60ch;
  font-size: 15px;
  line-height: 1.8;
  color: var(--muted);
}

.page-faq .faq-hero__meta {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 22px;
  margin: 26px 0 0;
  padding: 14px 0 0;
  list-style: none;
  border-top: 1px solid var(--grid);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--muted);
}

.page-faq .faq-hero__meta .mono {
  font-size: 15px;
  font-weight: 700;
}

/* ---------- 主布局 ---------- */
.page-faq .faq-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: 28px;
  padding: 32px 0 72px;
}

/* ---------- 左侧索引 ---------- */
.page-faq .faq-index {
  border: var(--line-bold);
  background: var(--panel);
  box-shadow: var(--faq-shadow);
  padding: 14px 14px 16px;
}

.page-faq .faq-index__title {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--cyan);
}

.page-faq .faq-index__list {
  display: flex;
  gap: 4px;
  margin: 12px 0 0;
  padding: 0 0 4px;
  list-style: none;
  overflow-x: auto;
  scrollbar-width: thin;
  scrollbar-color: var(--cyan-deep) transparent;
  -webkit-overflow-scrolling: touch;
}

.page-faq .faq-index__link {
  display: block;
  padding: 10px 12px;
  border-left: 2px solid transparent;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  white-space: nowrap;
  color: var(--muted);
  text-decoration: none;
  transition: color 0.16s ease, background-color 0.16s ease, border-color 0.16s ease;
}

.page-faq .faq-index__link:hover {
  color: var(--paper);
  background: rgba(53, 245, 208, 0.07);
  border-left-color: var(--cyan);
}

.page-faq .faq-index__link.is-current {
  color: var(--cyan);
  border-left-color: var(--cyan);
  background: rgba(53, 245, 208, 0.09);
}

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

.page-faq .faq-group {
  margin-bottom: 56px;
  scroll-margin-top: 96px;
}

.page-faq .faq-group:last-of-type {
  margin-bottom: 40px;
}

.page-faq .faq-group .section-head {
  margin-bottom: 18px;
}

.page-faq .faq-tag {
  display: inline-block;
  margin-bottom: 12px;
  padding: 3px 9px;
  background: var(--cyan-deep);
  color: var(--paper);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.14em;
}

/* ---------- 问题卡片 ---------- */
.page-faq .faq-list {
  display: grid;
  gap: 14px;
  margin-top: 18px;
}

.page-faq .faq-item {
  background: var(--panel);
  border: var(--line-bold);
  box-shadow: var(--faq-shadow);
  transition: border-color 0.18s ease;
}

.page-faq .faq-item:hover {
  border-color: rgba(53, 245, 208, 0.55);
}

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

.page-faq .faq-item__q {
  display: flex;
  align-items: baseline;
  gap: 12px;
  padding: 16px 18px;
  cursor: pointer;
  list-style: none;
  font-size: 15px;
  font-weight: 600;
  line-height: 1.6;
  color: var(--paper);
}

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

.page-faq .faq-item__q::after {
  content: "+";
  margin-left: auto;
  flex: none;
  font-family: var(--font-mono);
  font-size: 18px;
  line-height: 1;
  color: var(--cyan);
}

.page-faq .faq-item[open] .faq-item__q::after {
  content: "\2212";
}

.page-faq .faq-item__code {
  flex: none;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.06em;
  color: var(--cyan);
}

.page-faq .faq-item__text {
  flex: 1 1 auto;
  min-width: 0;
}

.page-faq .faq-item__a {
  margin: 0 18px;
  padding: 14px 0 18px;
  border-top: 1px solid var(--grid);
  font-size: 14px;
  line-height: 1.8;
  color: var(--muted);
}

.page-faq .faq-item__a p {
  margin: 0 0 10px;
}

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

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

.page-faq .faq-item__a a:hover {
  color: var(--paper);
}

/* ---------- 配图 ---------- */
.page-faq .faq-figure {
  margin: 18px 0 0;
  border: var(--line-bold);
  background: var(--panel);
  box-shadow: var(--faq-shadow);
}

.page-faq .faq-figure .figure__media {
  display: block;
  overflow: hidden;
}

.page-faq .faq-figure img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
  border-bottom: 1px solid var(--grid);
}

.page-faq .faq-figure .figure__caption {
  padding: 12px 16px;
  font-size: 12px;
  line-height: 1.7;
  color: var(--muted);
}

/* ---------- 人工处理引导 ---------- */
.page-faq .faq-escalate {
  margin-top: 8px;
  padding: 24px 20px 26px;
  background: var(--panel);
  border: var(--line-bold);
  border-left: 4px solid var(--orange);
  box-shadow: var(--faq-shadow);
}

.page-faq .faq-escalate__lead {
  margin: 0;
  font-size: 11px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--orange);
}

.page-faq .faq-escalate__title {
  margin: 10px 0 0;
  font-family: var(--font-display);
  font-size: clamp(20px, 4vw, 28px);
  font-weight: 800;
  line-height: 1.15;
  letter-spacing: -0.01em;
  color: var(--paper);
}

.page-faq .faq-escalate__body {
  margin: 14px 0 0;
  max-width: 62ch;
  font-size: 14px;
  line-height: 1.8;
  color: var(--muted);
}

.page-faq .faq-escalate__body strong {
  font-family: var(--font-mono);
  font-weight: 700;
  color: var(--paper);
}

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

.page-faq .faq-escalate__body a:hover {
  color: var(--paper);
}

/* ---------- 焦点样式 ---------- */
.page-faq a:focus-visible,
.page-faq summary:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 2px;
}

/* ---------- 平板及以上 ---------- */
@media (min-width: 700px) {
  .page-faq .faq-hero {
    padding: 56px 0 44px;
  }

  .page-faq .faq-item__q {
    padding: 18px 22px;
    font-size: 16px;
  }

  .page-faq .faq-item__a {
    margin: 0 22px;
    font-size: 15px;
  }

  .page-faq .faq-escalate {
    padding: 30px 28px 32px;
  }
}

/* ---------- 桌面：左侧常驻索引 ---------- */
@media (min-width: 960px) {
  .page-faq .faq-layout {
    grid-template-columns: var(--faq-index-w) minmax(0, 1fr);
    gap: 52px;
    padding: 48px 0 96px;
  }

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

  .page-faq .faq-index__list {
    flex-direction: column;
    overflow: visible;
    gap: 2px;
  }

  .page-faq .faq-index__link {
    white-space: normal;
  }

  .page-faq .faq-figure {
    margin-top: 22px;
  }
}

/* ---------- 大屏：正文窄栏留白 ---------- */
@media (min-width: 1200px) {
  .page-faq .faq-group {
    max-width: 78ch;
  }

  .page-faq .faq-escalate {
    max-width: 88ch;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-item,
  .page-faq .faq-index__link {
    transition: none;
  }
}
<<<END>>>