.page-faq {
  --faq-index-w: 216px;
  --faq-gap: 56px;
  padding-bottom: 72px;
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  display: grid;
  gap: 16px;
  padding: 26px 0 40px;
}

.page-faq .faq-hero h1 {
  margin: 0;
  font-size: clamp(30px, 7.2vw, 54px);
  font-weight: 900;
  font-style: italic;
  letter-spacing: -0.02em;
  line-height: 1.06;
  color: var(--text);
}

.page-faq .faq-hero__lead {
  margin: 0;
  max-width: 62ch;
  font-size: 16px;
  line-height: 1.8;
  color: var(--muted);
}

.page-faq .faq-hero__figure {
  position: relative;
  margin: 10px 0 0;
}

.page-faq .faq-hero__figure::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  z-index: 1;
  width: 88px;
  height: 3px;
  background: var(--volt);
}

.page-faq .faq-hero__figure .figure__media {
  overflow: hidden;
  border: 1px solid var(--grille);
  background: var(--panel);
  aspect-ratio: 16 / 9;
}

.page-faq .faq-hero__figure img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

@media (min-width: 720px) {
  .page-faq .faq-hero__figure .figure__media {
    aspect-ratio: 16 / 6;
  }
}

/* ---------- 两栏布局 ---------- */
.page-faq .faq-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: 32px;
  padding-top: 8px;
  border-top: 1px solid var(--grille);
}

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

/* ---------- 主题索引 ---------- */
.page-faq .faq-index__head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 18px 0 12px;
  border-bottom: 1px solid var(--grille);
  color: var(--muted);
  font-size: 13px;
  letter-spacing: 0.08em;
}

.page-faq .faq-index__list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-faq .faq-index__link {
  display: flex;
  align-items: baseline;
  gap: 12px;
  padding: 11px 4px 11px 0;
  border-bottom: 1px solid var(--grille);
  color: var(--muted);
  font-size: 14px;
  text-decoration: none;
  transition: color var(--t) var(--ease), border-color var(--t) var(--ease), transform var(--t) var(--ease);
}

.page-faq .faq-index__link:hover,
.page-faq .faq-index__link:focus-visible {
  color: var(--text);
  border-bottom-color: var(--volt);
  transform: translateX(4px);
  outline: none;
}

.page-faq .faq-index__num {
  flex: none;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--pulse);
}

@media (min-width: 960px) {
  .page-faq .faq-index {
    position: sticky;
    top: 24px;
  }
}

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

.page-faq .faq-group {
  margin-bottom: 48px;
  scroll-margin-top: 88px;
}

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

.page-faq .faq-group__head {
  display: flex;
  align-items: baseline;
  gap: 14px;
  margin-bottom: 4px;
  padding-bottom: 14px;
  border-bottom: 1px solid var(--grille);
}

.page-faq .faq-group__num {
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.06em;
  color: var(--signal);
}

.page-faq .faq-group__title {
  margin: 0;
  font-size: 20px;
  font-weight: 700;
  letter-spacing: -0.01em;
  line-height: 1.3;
  color: var(--text);
}

@media (min-width: 960px) {
  .page-faq .faq-group__title {
    font-size: 24px;
  }
}

/* ---------- 手风琴 ---------- */
.page-faq .faq-item {
  position: relative;
  border-bottom: 1px solid var(--grille);
  transition: background-color var(--t) var(--ease);
}

.page-faq .faq-item[open] {
  background: var(--panel);
}

.page-faq .faq-item[open]::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 2px;
  background: var(--signal);
}

.page-faq .faq-item__summary {
  position: relative;
  display: flex;
  align-items: baseline;
  gap: 14px;
  padding: 17px 46px 17px 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-item__summary::after {
  content: "+";
  position: absolute;
  right: 16px;
  top: 18px;
  font-family: var(--font-mono);
  font-size: 18px;
  line-height: 1;
  color: var(--muted);
  transition: color var(--t) var(--ease);
}

.page-faq .faq-item[open] .faq-item__summary::after {
  content: "\2013";
  color: var(--signal);
}

.page-faq .faq-item__summary:hover .faq-item__q,
.page-faq .faq-item__summary:focus-visible .faq-item__q {
  color: var(--pulse);
}

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

.page-faq .faq-item__num {
  flex: none;
  padding-top: 3px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--muted);
}

.page-faq .faq-item__q {
  font-size: 16px;
  font-weight: 600;
  line-height: 1.55;
  color: var(--text);
  transition: color var(--t) var(--ease);
}

.page-faq .faq-item__a {
  max-width: 70ch;
  padding: 0 46px 20px 18px;
  font-size: 15px;
  line-height: 1.8;
  color: var(--muted);
}

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

.page-faq .faq-item__a a {
  color: var(--pulse);
  text-decoration: none;
  border-bottom: 1px solid var(--grille);
  transition: color var(--t) var(--ease), border-color var(--t) var(--ease);
}

.page-faq .faq-item__a a:hover,
.page-faq .faq-item__a a:focus-visible {
  color: var(--text);
  border-bottom-color: var(--volt);
}

@media (min-width: 720px) {
  .page-faq .faq-item__summary {
    padding: 20px 52px 20px 22px;
  }
  .page-faq .faq-item__a {
    padding: 0 52px 22px 22px;
    font-size: 15.5px;
  }
  .page-faq .faq-item__q {
    font-size: 17px;
  }
}

/* ---------- 移动端分栏 ---------- */
.page-faq .faq-split {
  display: grid;
  grid-template-columns: 1fr;
  gap: 26px;
}

.page-faq .faq-split__main {
  min-width: 0;
}

.page-faq .faq-phone {
  margin: 0;
}

.page-faq .faq-phone .figure__media {
  overflow: hidden;
  border: 1px solid var(--grille);
  background: var(--panel);
}

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

.page-faq .faq-phone .figure__caption {
  padding-top: 10px;
  font-size: 13px;
  line-height: 1.7;
  color: var(--muted);
}

@media (min-width: 780px) {
  .page-faq .faq-split {
    grid-template-columns: minmax(0, 1fr) 250px;
    gap: 34px;
    align-items: start;
  }
  .page-faq .faq-phone {
    position: sticky;
    top: 24px;
  }
}

/* ---------- 速查索引 ---------- */
.page-faq .quick-index {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 0;
  padding: 20px 0 0;
  list-style: none;
}

.page-faq .quick-index__link {
  display: inline-block;
  padding: 9px 13px;
  border: 1px solid var(--grille);
  color: var(--muted);
  font-size: 13.5px;
  line-height: 1.2;
  text-decoration: none;
  transition: color var(--t) var(--ease), border-color var(--t) var(--ease),
    background-color var(--t) var(--ease), transform var(--t) var(--ease);
}

.page-faq .quick-index__link:hover,
.page-faq .quick-index__link:focus-visible {
  color: var(--text);
  border-color: var(--volt);
  background: rgba(31, 107, 255, 0.1);
  transform: translateY(-4px);
  outline: none;
}

/* ---------- 底部行动块 ---------- */
.page-faq .faq-cta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  margin-top: 34px;
  padding: 26px 22px;
  background: linear-gradient(120deg, rgba(31, 107, 255, 0.16), rgba(6, 8, 13, 0) 62%), var(--panel);
  border: 1px solid var(--grille);
}

.page-faq .faq-cta__text {
  margin: 0;
  max-width: 46ch;
  font-size: 16px;
  line-height: 1.7;
  color: var(--text);
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-index__link,
  .page-faq .faq-item,
  .page-faq .faq-item__q,
  .page-faq .faq-item__summary::after,
  .page-faq .quick-index__link,
  .page-faq .faq-item__a a {
    transition: none;
  }
  .page-faq .faq-index__link:hover,
  .page-faq .quick-index__link:hover {
    transform: none;
  }
}
<<<END>>>