.page-faq {
  --faq-sticky-top: 96px;
  --faq-num-w: 28px;
  display: block;
}

/* ---------- 面包屑 ---------- */
.page-faq .breadcrumb {
  padding: 20px 0 4px;
}
.page-faq .breadcrumb-list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  list-style: none;
  margin: 0;
  padding: 0;
  font-size: 13px;
  color: var(--c-mist);
}
.page-faq .breadcrumb-item + .breadcrumb-item::before {
  content: "/";
  margin-right: 8px;
  color: var(--c-line);
}
.page-faq .breadcrumb-link {
  color: var(--c-paper-dim);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color .2s var(--ease), border-color .2s var(--ease);
}
.page-faq .breadcrumb-link:hover,
.page-faq .breadcrumb-link:focus-visible {
  color: var(--c-lime);
  border-bottom-color: var(--c-lime-line);
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  overflow: hidden;
  padding: 20px 0 8px;
}
.page-faq .faq-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    radial-gradient(120% 90% at 12% 0%, var(--c-lime-soft) 0%, rgba(200,255,77,0) 58%),
    linear-gradient(118deg, rgba(15,46,38,.9) 0%, rgba(7,26,22,0) 66%);
  clip-path: polygon(0 0, 100% 0, 100% 58%, 0 100%);
  pointer-events: none;
}
.page-faq .faq-hero__inner {
  position: relative;
  display: grid;
  gap: 26px;
}
.page-faq .faq-hero__copy .eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin: 0 0 14px;
  padding: 5px 12px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--c-amber);
  background: rgba(255,155,69,.1);
  border-left: 2px solid var(--c-amber);
}
.page-faq .faq-hero h1 {
  margin: 0 0 16px;
  max-width: 18em;
  font-size: clamp(32px, 7.4vw, 56px);
  line-height: 1.06;
  letter-spacing: -.02em;
  color: var(--c-paper);
}
.page-faq .faq-hero .lede {
  margin: 0 0 22px;
  max-width: 40em;
  font-size: 16px;
  line-height: 1.62;
  color: var(--c-paper-dim);
}
.page-faq .faq-hero .cluster {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}
.page-faq .faq-hero__media {
  align-self: start;
}
.page-faq .faq-hero__media img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

/* ---------- 主体两栏 ---------- */
.page-faq .faq-body {
  padding-top: 30px;
}
.page-faq .faq-layout {
  display: grid;
  gap: 26px;
  align-items: start;
}

/* ---------- 主题索引 ---------- */
.page-faq .faq-index {
  min-width: 0;
}
.page-faq .faq-index__title {
  margin: 0 0 10px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--c-mist);
}
.page-faq .faq-index__list {
  display: flex;
  gap: 8px;
  margin: 0;
  padding: 2px 0 10px;
  list-style: none;
  overflow-x: auto;
  scrollbar-width: none;
}
.page-faq .faq-index__list::-webkit-scrollbar {
  display: none;
}
.page-faq .faq-index__link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 9px 14px;
  white-space: nowrap;
  font-size: 13.5px;
  color: var(--c-paper-dim);
  text-decoration: none;
  background: var(--c-panel);
  border: 1px solid var(--c-line);
  clip-path: polygon(0 0, calc(100% - 9px) 0, 100% 9px, 100% 100%, 0 100%);
  transition: color .2s var(--ease), background .2s var(--ease), border-color .2s var(--ease);
}
.page-faq .faq-index__link .mono {
  font-size: 11px;
  color: var(--c-amber);
}
.page-faq .faq-index__link:hover,
.page-faq .faq-index__link:focus-visible {
  color: var(--c-black);
  background: var(--c-lime);
  border-color: var(--c-lime);
}
.page-faq .faq-index__link:hover .mono,
.page-faq .faq-index__link:focus-visible .mono {
  color: rgba(3,10,8,.66);
}
.page-faq .faq-index .side-note {
  display: none;
  margin: 18px 0 0;
  padding: 12px 0 0;
  border-top: 1px solid var(--c-line-soft);
  font-size: 12.5px;
  line-height: 1.6;
  color: var(--c-mist);
}

/* ---------- 问答分组 ---------- */
.page-faq .faq-groups {
  min-width: 0;
}
.page-faq .faq-group {
  margin-bottom: 34px;
  padding-bottom: 6px;
  scroll-margin-top: 90px;
}
.page-faq .faq-group:last-child {
  margin-bottom: 0;
}
.page-faq .faq-group__head {
  display: flex;
  align-items: baseline;
  gap: 12px;
  padding-left: 14px;
  border-left: 3px solid var(--c-lime);
}
.page-faq .faq-group__num {
  font-size: 13px;
  letter-spacing: .1em;
  color: var(--c-amber);
}
.page-faq .faq-group__title {
  margin: 0;
  font-size: clamp(21px, 4.6vw, 27px);
  line-height: 1.2;
  letter-spacing: -.01em;
  color: var(--c-paper);
}
.page-faq .faq-group__desc {
  margin: 12px 0 6px;
  padding-left: 14px;
  max-width: 46em;
  font-size: 14.5px;
  line-height: 1.62;
  color: var(--c-mist);
}
.page-faq .faq-group__desc a,
.page-faq .faq-a a {
  color: var(--c-lime);
  text-decoration: none;
  border-bottom: 1px solid var(--c-lime-line);
  transition: border-color .2s var(--ease);
}
.page-faq .faq-group__desc a:hover,
.page-faq .faq-a a:hover,
.page-faq .faq-group__desc a:focus-visible,
.page-faq .faq-a a:focus-visible {
  border-bottom-color: var(--c-lime);
}

/* ---------- 配图 ---------- */
.page-faq .faq-figure {
  margin: 16px 0 6px;
}
.page-faq .faq-figure .media-frame img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.page-faq .faq-figure .media-caption {
  margin-top: 8px;
  font-size: 12.5px;
  line-height: 1.55;
  color: var(--c-mist);
}

/* ---------- 手风琴 ---------- */
.page-faq .faq-item {
  border-bottom: 1px solid var(--c-line-soft);
}
.page-faq .faq-item > summary {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  padding: 15px 10px 15px 14px;
  cursor: pointer;
  list-style: none;
  border-left: 3px solid transparent;
  transition: background .22s var(--ease), border-color .22s var(--ease);
}
.page-faq .faq-item > summary::-webkit-details-marker {
  display: none;
}
.page-faq .faq-item > summary::marker {
  content: "";
}
.page-faq .faq-item > summary:hover {
  background: var(--c-lime-soft);
}
.page-faq .faq-item > summary:focus-visible {
  outline: 2px solid var(--c-lime);
  outline-offset: -2px;
}
.page-faq .faq-item[open] > summary {
  border-left-color: var(--c-lime);
  background: var(--c-lime-soft);
}
.page-faq .faq-num {
  flex: none;
  min-width: var(--faq-num-w);
  padding-top: 2px;
  font-size: 12px;
  line-height: 1.7;
  color: var(--c-mist);
  transition: color .22s var(--ease);
}
.page-faq .faq-item[open] .faq-num {
  color: var(--c-lime);
}
.page-faq .faq-q {
  flex: 1;
  min-width: 0;
  font-size: 15.5px;
  font-weight: 700;
  line-height: 1.5;
  color: var(--c-paper);
}
.page-faq .faq-arrow {
  flex: none;
  width: 9px;
  height: 9px;
  margin-top: 7px;
  border-right: 2px solid var(--c-mist);
  border-bottom: 2px solid var(--c-mist);
  transform: rotate(45deg);
  transition: transform .26s var(--ease), border-color .26s var(--ease);
}
.page-faq .faq-item[open] .faq-arrow {
  transform: rotate(-135deg);
  border-color: var(--c-lime);
}
.page-faq .faq-a {
  padding: 0 10px 18px calc(14px + var(--faq-num-w) + 10px);
  font-size: 15px;
  line-height: 1.68;
  color: var(--c-paper-dim);
  animation: faq-answer-in .3s var(--ease) both;
}
.page-faq .faq-a p {
  margin: 0;
}

@keyframes faq-answer-in {
  from {
    opacity: 0;
    transform: translateX(8px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

/* ---------- 出口区 ---------- */
.page-faq .faq-exits {
  padding-top: 34px;
}
.page-faq .faq-exits__head h2 {
  margin: 0 0 10px;
  font-size: clamp(24px, 5vw, 34px);
  line-height: 1.12;
  letter-spacing: -.015em;
  color: var(--c-paper);
}
.page-faq .faq-exits__head .lede {
  margin: 0 0 22px;
  max-width: 42em;
  font-size: 15.5px;
  line-height: 1.62;
  color: var(--c-paper-dim);
}
.page-faq .faq-exits__grid {
  display: grid;
  gap: 12px;
}
.page-faq .faq-exit {
  position: relative;
  display: grid;
  gap: 6px;
  padding: 18px 20px 18px 18px;
  text-decoration: none;
  color: inherit;
  background: var(--c-panel);
  border: 1px solid var(--c-line);
  border-left: 3px solid var(--c-line);
  clip-path: polygon(0 0, calc(100% - 14px) 0, 100% 14px, 100% 100%, 0 100%);
  transition: background .22s var(--ease), border-color .22s var(--ease), transform .22s var(--ease);
}
.page-faq .faq-exit:hover,
.page-faq .faq-exit:focus-visible {
  background: rgba(200,255,77,.07);
  border-left-color: var(--c-lime);
  transform: translateY(-2px);
}
.page-faq .faq-exit__num {
  font-size: 12px;
  letter-spacing: .14em;
  color: var(--c-amber);
}
.page-faq .faq-exit__label {
  font-family: var(--font-head);
  font-size: 19px;
  font-weight: 700;
  line-height: 1.25;
  color: var(--c-paper);
}
.page-faq .faq-exit__desc {
  font-size: 13.5px;
  line-height: 1.6;
  color: var(--c-mist);
}

/* ---------- 桌面 ---------- */
@media (min-width: 880px) {
  .page-faq .faq-hero {
    padding: 30px 0 14px;
  }
  .page-faq .faq-hero__inner {
    grid-template-columns: minmax(0, 1.02fr) minmax(0, 0.98fr);
    gap: 44px;
    align-items: center;
  }
  .page-faq .faq-hero .lede {
    font-size: 17px;
  }
  .page-faq .faq-layout {
    grid-template-columns: 250px minmax(0, 1fr);
    gap: 48px;
  }
  .page-faq .faq-index {
    position: sticky;
    top: var(--faq-sticky-top);
  }
  .page-faq .faq-index__list {
    flex-direction: column;
    gap: 3px;
    overflow: visible;
    padding-bottom: 0;
  }
  .page-faq .faq-index__link {
    white-space: normal;
    padding: 11px 12px;
    font-size: 14px;
    clip-path: polygon(0 0, calc(100% - 10px) 0, 100% 10px, 100% 100%, 0 100%);
  }
  .page-faq .faq-index .side-note {
    display: block;
  }
  .page-faq .faq-group {
    margin-bottom: 44px;
  }
  .page-faq .faq-q {
    font-size: 16.5px;
  }
  .page-faq .faq-a {
    font-size: 15.5px;
  }
  .page-faq .faq-exits__grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 14px;
  }
}

@media (min-width: 1120px) {
  .page-faq .faq-layout {
    grid-template-columns: 272px minmax(0, 1fr);
    gap: 60px;
  }
  .page-faq .faq-exits__grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-a {
    animation: none;
  }
  .page-faq .faq-exit:hover,
  .page-faq .faq-exit:focus-visible {
    transform: none;
  }
}
<<<END>>>