.page-faq {
  --faq-line: var(--grid-soft);
  padding-bottom: 72px;
}

.page-faq .faq-wrap {
  padding-top: 6px;
}

.page-faq .faq-crumb {
  margin-bottom: 18px;
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  display: grid;
  gap: 24px;
  padding-bottom: 26px;
  border-bottom: 1px solid var(--grid);
}

.page-faq .faq-hero__title {
  margin: 10px 0 0;
  font-size: clamp(34px, 8.4vw, 64px);
  line-height: 1.04;
  letter-spacing: -0.02em;
  font-weight: 900;
  color: var(--paper);
}

.page-faq .faq-hero__lede {
  margin: 16px 0 0;
  max-width: 54ch;
  font-size: 17px;
  line-height: 1.8;
  color: var(--muted);
}

.page-faq .faq-hero__media {
  margin: 0;
  background: var(--panel);
  border: 1px solid var(--grid);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 22px), calc(100% - 22px) 100%, 0 100%);
  overflow: hidden;
}

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

/* ---------- 分组入口 ---------- */
.page-faq .faq-jump {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
  margin: 26px 0 4px;
}

.page-faq .faq-jump__item {
  position: relative;
  display: block;
  padding: 18px 14px 16px 16px;
  background: var(--panel);
  border-left: 3px solid var(--grid);
  color: var(--paper);
  font-size: 16px;
  font-weight: 800;
  letter-spacing: 0.01em;
  text-decoration: none;
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 12px), calc(100% - 12px) 100%, 0 100%);
  transition: color 0.18s var(--ease), border-color 0.18s var(--ease), background 0.18s var(--ease);
}

.page-faq .faq-jump__item:hover,
.page-faq .faq-jump__item:focus-visible {
  color: var(--cyan);
  border-left-color: var(--cyan);
  background: var(--panel-2);
}

/* ---------- 问答组 ---------- */
.page-faq .faq-group {
  margin-top: 48px;
  scroll-margin-top: calc(var(--topbar-h) + 20px);
}

.page-faq .faq-group__head {
  padding-bottom: 14px;
  border-bottom: 1px solid var(--grid);
  transition: border-color 0.2s var(--ease);
}

.page-faq .faq-group:target .faq-group__head {
  border-bottom-color: var(--cyan);
}

.page-faq .faq-group__title {
  margin: 8px 0 0;
  font-size: clamp(22px, 4.6vw, 32px);
  line-height: 1.25;
  letter-spacing: -0.01em;
  font-weight: 800;
  color: var(--paper);
}

.page-faq .faq-list {
  display: grid;
}

/* ---------- 折叠条 ---------- */
.page-faq .faq-item {
  border-bottom: 1px solid var(--faq-line);
}

.page-faq .faq-q {
  position: relative;
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  gap: 12px;
  align-items: baseline;
  padding: 17px 6px 17px 18px;
  cursor: pointer;
  list-style: none;
}

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

.page-faq .faq-q::before {
  content: "";
  position: absolute;
  left: 0;
  top: 13px;
  bottom: 13px;
  width: 3px;
  background: var(--grid);
  transition: background 0.2s var(--ease), width 0.2s var(--ease);
}

.page-faq .faq-item[open] .faq-q::before {
  background: var(--cyan);
  width: 4px;
}

.page-faq .faq-q::after {
  content: "+";
  font-family: var(--font-num);
  font-size: 17px;
  line-height: 1;
  color: var(--muted);
  transition: color 0.2s var(--ease);
}

.page-faq .faq-item[open] .faq-q::after {
  content: "–";
  color: var(--cyan);
}

.page-faq .faq-num {
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--muted);
  transition: color 0.2s var(--ease);
}

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

.page-faq .faq-q__text {
  font-size: 17px;
  font-weight: 700;
  line-height: 1.5;
  color: var(--paper);
}

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

/* ---------- 答案 ---------- */
.page-faq .faq-a {
  padding: 0 6px 18px 30px;
  animation: faq-a-in 0.2s var(--ease) both;
}

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

.page-faq .faq-k {
  font-family: var(--font-num);
  font-weight: 600;
  color: var(--cyan);
  white-space: nowrap;
}

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

.page-faq .faq-a__link:hover,
.page-faq .faq-a__link:focus-visible {
  color: var(--cyan);
}

@keyframes faq-a-in {
  from {
    opacity: 0;
    transform: translateY(-4px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* ---------- 导出组侧图 ---------- */
.page-faq .faq-group--split {
  display: grid;
  gap: 20px;
}

.page-faq .faq-side {
  margin: 4px 0 0;
  background: var(--panel);
  border: 1px solid var(--grid);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 18px), calc(100% - 18px) 100%, 0 100%);
  overflow: hidden;
}

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

.page-faq .faq-side__cap {
  padding: 10px 14px 12px;
  font-size: 13px;
  letter-spacing: 0.04em;
  color: var(--muted);
  border-top: 1px solid var(--grid);
}

/* ---------- 收尾 ---------- */
.page-faq .faq-cta {
  display: grid;
  gap: 18px;
  margin-top: 52px;
  padding: 26px 22px;
  background: var(--panel);
  border-left: 3px solid var(--orange);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 18px), calc(100% - 18px) 100%, 0 100%);
}

.page-faq .faq-cta__title {
  margin: 0;
  font-size: 22px;
  font-weight: 800;
  letter-spacing: -0.01em;
  color: var(--paper);
}

.page-faq .faq-cta__text {
  margin: 10px 0 0;
  max-width: 56ch;
  font-size: 16px;
  line-height: 1.8;
  color: var(--muted);
}

.page-faq .faq-cta__btn {
  justify-self: start;
}

/* ---------- 桌面 ---------- */
@media (min-width: 900px) {
  .page-faq .faq-hero {
    grid-template-columns: minmax(0, 1fr) 360px;
    align-items: end;
    gap: 44px;
    padding-bottom: 34px;
  }

  .page-faq .faq-jump {
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 14px;
    margin-top: 34px;
  }

  .page-faq .faq-jump__item {
    padding: 22px 16px 20px 18px;
    font-size: 19px;
  }

  .page-faq .faq-group {
    margin-top: 64px;
  }

  .page-faq .faq-q {
    padding: 20px 8px 20px 22px;
    gap: 16px;
  }

  .page-faq .faq-a {
    padding: 0 8px 22px 44px;
  }

  .page-faq .faq-group--split {
    grid-template-columns: minmax(0, 1fr) 320px;
    align-items: start;
    gap: 34px;
  }

  .page-faq .faq-group--split > .faq-group__head {
    grid-column: 1 / -1;
  }

  .page-faq .faq-side {
    position: sticky;
    top: calc(var(--topbar-h) + 24px);
  }

  .page-faq .faq-cta {
    grid-template-columns: minmax(0, 1fr) auto;
    align-items: center;
    padding: 30px 28px;
    margin-top: 68px;
  }
}

/* ---------- 动效降级 ---------- */
@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-a {
    animation: none;
  }

  .page-faq .faq-jump__item,
  .page-faq .faq-q::before,
  .page-faq .faq-q::after,
  .page-faq .faq-num,
  .page-faq .faq-group__head {
    transition: none;
  }
}
<<<PAGE_CSS_END>>>