.page-faq {
  --faq-shadow: 6px 6px 0 rgba(11, 27, 51, 0.08);
  --faq-sticky-top: 88px;
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  overflow: hidden;
  padding: 28px 0 46px;
  background: linear-gradient(155deg, var(--ink) 0%, var(--ink-deep) 100%);
  color: var(--ice);
}

.page-faq .faq-hero::before {
  content: "";
  position: absolute;
  top: -140px;
  right: -100px;
  width: 460px;
  height: 460px;
  background: radial-gradient(circle, rgba(43, 224, 208, 0.18) 0%, rgba(43, 224, 208, 0) 68%);
  pointer-events: none;
}

.page-faq .faq-hero::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 1px;
  background: linear-gradient(90deg, var(--lava) 0 96px, rgba(247, 250, 252, 0.2) 96px 100%);
}

.page-faq .faq-hero-grid {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 30px;
  align-items: center;
}

.page-faq .faq-hero .breadcrumbs {
  margin: 0 0 18px;
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--mist);
}

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

.page-faq .faq-hero .breadcrumbs a:hover {
  color: var(--lava);
}

.page-faq .faq-hero .section-label {
  margin: 0;
  color: var(--cyan);
}

.page-faq .faq-hero h1 {
  margin: 14px 0 0;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(38px, 8vw, 76px);
  line-height: 0.96;
  letter-spacing: -0.02em;
}

.page-faq .faq-hero-lede {
  max-width: 34em;
  margin: 20px 0 0;
  font-size: 16px;
  line-height: 1.8;
  color: rgba(247, 250, 252, 0.82);
}

.page-faq .faq-stats {
  display: flex;
  flex-wrap: wrap;
  gap: 14px 30px;
  margin-top: 26px;
  padding-top: 20px;
  border-top: 1px solid var(--line);
}

.page-faq .faq-stat b {
  display: block;
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: 24px;
  font-weight: 700;
  color: var(--cyan);
  line-height: 1.1;
}

.page-faq .faq-stat span {
  display: block;
  margin-top: 4px;
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--mist);
}

.page-faq .faq-hero-figure {
  margin: 0;
  border: 1px solid var(--line-strong);
  background: var(--ink-deep);
}

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

/* ---------- 主体 ---------- */
.page-faq .faq-body {
  padding: 40px 0 64px;
  background: var(--paper);
}

.page-faq .faq-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 30px;
}

/* ---------- 左侧索引 ---------- */
.page-faq .faq-index-inner {
  padding: 22px 20px;
  background: var(--ice);
  border: 1px solid var(--line-paper);
  box-shadow: var(--faq-shadow);
}

.page-faq .faq-index-title {
  margin: 0 0 14px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--press);
}

.page-faq .faq-search {
  display: block;
  margin-bottom: 18px;
}

.page-faq .faq-search input {
  width: 100%;
  box-sizing: border-box;
  padding: 10px 12px;
  font-family: var(--font-body);
  font-size: 14px;
  color: var(--ink-brown);
  background: var(--paper);
  border: 1px solid var(--line-paper);
  border-radius: 0;
  outline: none;
  transition: border-color var(--t-fast), box-shadow var(--t-fast);
}

.page-faq .faq-search input::placeholder {
  color: var(--mist);
}

.page-faq .faq-search input:focus {
  border-color: var(--teal);
  box-shadow: inset 3px 0 0 var(--cyan);
}

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

.page-faq .faq-index-list li + li {
  border-top: 1px solid var(--line-paper);
}

.page-faq .faq-index-link {
  display: flex;
  align-items: baseline;
  gap: 8px;
  padding: 11px 8px 11px 10px;
  font-size: 15px;
  line-height: 1.5;
  color: var(--ink-brown);
  text-decoration: none;
  border-left: 3px solid transparent;
  transition: border-color var(--t-fast), background-color var(--t-fast), color var(--t-fast);
}

.page-faq .faq-index-link:hover,
.page-faq .faq-index-link:focus-visible {
  border-left-color: var(--lava);
  background: rgba(255, 90, 31, 0.09);
  color: var(--ink-deep);
}

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

.page-faq .faq-index-count {
  margin-left: auto;
  font-size: 11px;
  color: var(--mist);
}

.page-faq .faq-index-note {
  margin: 16px 0 0;
  padding-top: 14px;
  border-top: 1px solid var(--line-paper);
  font-size: 13px;
  line-height: 1.7;
  color: var(--graphite);
}

/* ---------- 问答分组 ---------- */
.page-faq .faq-content {
  min-width: 0;
}

.page-faq .faq-group {
  scroll-margin-top: var(--faq-sticky-top);
}

.page-faq .faq-group + .faq-group {
  margin-top: 44px;
  padding-top: 36px;
  border-top: 1px solid var(--line-paper);
  box-shadow: 0 -3px 0 -2px rgba(26, 18, 14, 0.22);
}

.page-faq .faq-group-head {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 6px 12px;
  padding-bottom: 14px;
  border-bottom: 2px solid var(--ink-brown);
  margin-bottom: 20px;
}

.page-faq .faq-group-num {
  font-size: 13px;
  font-weight: 700;
  color: var(--lava);
}

.page-faq .faq-group-head h2 {
  margin: 0;
  font-family: var(--font-serif);
  font-size: clamp(22px, 4vw, 30px);
  font-weight: 600;
  line-height: 1.25;
  color: var(--ink-brown);
}

.page-faq .faq-group-desc {
  flex: 1 1 100%;
  margin: 0;
  font-size: 14px;
  line-height: 1.7;
  color: var(--graphite);
}

/* ---------- 折叠条目 ---------- */
.page-faq .faq-list {
  display: grid;
  gap: 10px;
}

.page-faq .faq-item {
  background: var(--ice);
  border: 1px solid var(--line-paper);
  transition: border-color var(--t-fast), box-shadow var(--t-fast), transform var(--t-fast);
}

.page-faq .faq-item:hover {
  border-color: var(--teal);
  transform: translateY(-2px);
}

.page-faq .faq-item[open] {
  box-shadow: inset 3px 0 0 var(--lava), var(--faq-shadow);
  border-color: rgba(26, 18, 14, 0.28);
}

.page-faq .faq-item summary {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 16px;
  padding: 15px 18px;
  cursor: pointer;
  list-style: none;
}

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

.page-faq .faq-item summary::marker {
  content: "";
}

.page-faq .faq-q {
  font-family: var(--font-serif);
  font-size: 18px;
  font-weight: 600;
  line-height: 1.55;
  color: var(--ink-brown);
}

.page-faq .faq-icon {
  position: relative;
  flex: 0 0 auto;
  width: 18px;
  height: 18px;
  margin-top: 5px;
  border: 1px solid var(--mist);
  transition: border-color var(--t-fast), transform var(--t-mid);
}

.page-faq .faq-icon::before,
.page-faq .faq-icon::after {
  content: "";
  position: absolute;
  top: 50%;
  left: 50%;
  background: var(--graphite);
  transform: translate(-50%, -50%);
  transition: background-color var(--t-fast), opacity var(--t-mid);
}

.page-faq .faq-icon::before {
  width: 9px;
  height: 1px;
}

.page-faq .faq-icon::after {
  width: 1px;
  height: 9px;
}

.page-faq .faq-item[open] .faq-icon {
  border-color: var(--lava);
  transform: rotate(90deg);
}

.page-faq .faq-item[open] .faq-icon::before,
.page-faq .faq-item[open] .faq-icon::after {
  background: var(--lava);
}

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

.page-faq .faq-a {
  padding: 0 18px 18px;
}

.page-faq .faq-a p {
  margin: 0;
  font-size: 15px;
  line-height: 1.8;
  color: var(--graphite);
}

.page-faq .faq-more {
  margin: 16px 0 0;
  padding-left: 12px;
  border-left: 3px solid var(--line-paper);
  font-size: 14px;
  line-height: 1.7;
  color: var(--graphite);
}

.page-faq .faq-more a {
  color: var(--teal);
  text-decoration: underline;
  text-decoration-thickness: 1px;
  text-underline-offset: 3px;
  transition: color var(--t-fast);
}

.page-faq .faq-more a:hover {
  color: var(--lava);
}

/* ---------- 关注列表配图 ---------- */
.page-faq .faq-inline-figure {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 12px;
  align-items: center;
  margin: 0 0 20px;
  padding: 14px;
  background: var(--ice);
  border: 1px solid var(--line-paper);
}

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

.page-faq .faq-inline-figure figcaption {
  font-size: 13px;
  line-height: 1.7;
  color: var(--graphite);
  border-left: 3px solid var(--cyan);
  padding-left: 12px;
}

/* ---------- 底部引导 ---------- */
.page-faq .faq-cta {
  margin-top: 48px;
  padding: 28px 22px;
  background: var(--ink);
  color: var(--ice);
  border: 1px solid var(--line-strong);
  box-shadow: inset 4px 0 0 var(--cyan);
}

.page-faq .faq-cta-label {
  margin: 0;
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--lava);
}

.page-faq .faq-cta h2 {
  margin: 10px 0 0;
  font-family: var(--font-serif);
  font-size: clamp(21px, 4vw, 27px);
  font-weight: 600;
  line-height: 1.3;
  color: var(--ice);
}

.page-faq .faq-cta p {
  max-width: 40em;
  margin: 12px 0 20px;
  font-size: 15px;
  line-height: 1.8;
  color: rgba(247, 250, 252, 0.8);
}

/* ---------- 响应式 ---------- */
@media (min-width: 640px) {
  .page-faq .faq-inline-figure {
    grid-template-columns: 190px minmax(0, 1fr);
    gap: 16px;
    padding: 16px;
  }

  .page-faq .faq-item summary {
    padding: 17px 22px;
  }

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

  .page-faq .faq-q {
    font-size: 19px;
  }
}

@media (min-width: 900px) {
  .page-faq .faq-hero {
    padding: 36px 0 56px;
  }

  .page-faq .faq-hero-grid {
    grid-template-columns: minmax(0, 1.12fr) minmax(0, 0.88fr);
    gap: 52px;
  }

  .page-faq .faq-body {
    padding: 52px 0 76px;
  }

  .page-faq .faq-layout {
    grid-template-columns: 272px minmax(0, 1fr);
    gap: 48px;
    align-items: start;
  }

  .page-faq .faq-index {
    position: sticky;
    top: var(--faq-sticky-top);
  }

  .page-faq .faq-cta {
    padding: 34px 34px;
  }
}

@media (min-width: 1160px) {
  .page-faq .faq-layout {
    grid-template-columns: 300px minmax(0, 1fr);
    gap: 64px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-item,
  .page-faq .faq-icon,
  .page-faq .faq-index-link,
  .page-faq .faq-search input {
    transition: none;
  }

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