.page-faq {
  --faq-line: rgba(185, 195, 190, 0.18);
  --faq-body-text: rgba(244, 246, 241, 0.82);
  background: var(--field-900);
  color: var(--chalk);
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  overflow: hidden;
  padding: clamp(40px, 6vw, 88px) 0 clamp(36px, 5vw, 68px);
  border-bottom: 2px solid var(--ink);
  background:
    radial-gradient(120% 92% at 90% -12%, rgba(217, 242, 39, 0.16), transparent 60%),
    radial-gradient(80% 70% at 4% 106%, rgba(255, 107, 26, 0.12), transparent 62%),
    var(--field-900);
}

.page-faq .faq-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background-image:
    linear-gradient(to right, rgba(185, 195, 190, 0.07) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(185, 195, 190, 0.07) 1px, transparent 1px);
  background-size: 64px 64px;
}

.page-faq .faq-hero::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 5px;
  background: var(--yellow-400);
}

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

.page-faq .crumbs {
  margin-bottom: clamp(20px, 3vw, 34px);
}

.page-faq .faq-title {
  margin: 14px 0 0;
  max-width: 20em;
  font-size: clamp(30px, 5.6vw, 62px);
  font-weight: 900;
  line-height: 1.1;
  letter-spacing: -0.022em;
  color: var(--chalk);
}

.page-faq .faq-lede {
  margin: clamp(18px, 2.4vw, 28px) 0 0;
  max-width: 62ch;
  font-size: clamp(15px, 1.65vw, 18px);
  line-height: 1.8;
  color: var(--faq-body-text);
}

.page-faq .faq-stats {
  display: grid;
  gap: 14px;
  margin: clamp(30px, 4vw, 46px) 0 0;
  padding: 0;
  list-style: none;
}

.page-faq .faq-stats li {
  display: flex;
  align-items: baseline;
  gap: 12px;
  padding: 12px 16px;
  border: 2px solid var(--field-700);
  border-left: 5px solid var(--yellow-400);
  background: var(--field-800);
}

.page-faq .faq-stat-num {
  font-family: var(--font-mono);
  font-size: clamp(24px, 4vw, 34px);
  font-weight: 700;
  line-height: 1;
  color: var(--yellow-400);
  font-variant-numeric: tabular-nums;
}

.page-faq .faq-stat-label {
  font-size: 14px;
  color: var(--gray-300);
}

/* ---------- 主体骨架 ---------- */
.page-faq .faq-body {
  padding-top: clamp(40px, 5vw, 72px);
  padding-bottom: clamp(64px, 8vw, 120px);
}

.page-faq .faq-layout {
  display: grid;
  gap: clamp(28px, 4vw, 44px);
}

/* ---------- 左侧分组导航 ---------- */
.page-faq .faq-rail {
  min-width: 0;
}

.page-faq .faq-rail-title {
  margin: 0 0 12px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--gray-300);
}

.page-faq .faq-rail-nav {
  display: flex;
  gap: 8px;
  overflow-x: auto;
  padding-bottom: 8px;
  scrollbar-width: thin;
}

.page-faq .faq-rail-link {
  display: inline-flex;
  align-items: baseline;
  gap: 10px;
  flex: 0 0 auto;
  padding: 10px 14px;
  border: 2px solid var(--field-700);
  border-radius: var(--radius-cut);
  background: var(--field-800);
  color: var(--chalk);
  font-size: 14px;
  font-weight: 600;
  text-decoration: none;
  white-space: nowrap;
  transition: background 180ms var(--ease), border-color 180ms var(--ease), color 180ms var(--ease);
}

.page-faq .faq-rail-link:hover,
.page-faq .faq-rail-link:focus-visible {
  border-color: var(--yellow-400);
  background: var(--field-700);
  color: var(--yellow-200);
}

.page-faq .faq-rail-num {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--yellow-400);
}

.page-faq .faq-rail-note {
  display: none;
  margin: 20px 0 0;
  padding-top: 16px;
  border-top: 1px dashed var(--faq-line);
  font-size: 13px;
  line-height: 1.75;
  color: var(--gray-300);
}

/* ---------- 问答列 ---------- */
.page-faq .faq-column {
  min-width: 0;
}

.page-faq .faq-group {
  scroll-margin-top: calc(var(--header-h) + 28px);
}

.page-faq .faq-group + .faq-group {
  margin-top: clamp(48px, 6vw, 92px);
}

.page-faq .faq-group-title {
  display: flex;
  align-items: baseline;
  gap: 12px;
  margin: 0;
  font-size: clamp(21px, 3.1vw, 32px);
  font-weight: 800;
  line-height: 1.25;
  letter-spacing: -0.012em;
  color: var(--chalk);
}

.page-faq .faq-group-num {
  flex: 0 0 auto;
  padding: 3px 9px;
  background: var(--yellow-400);
  color: var(--ink);
  font-family: var(--font-mono);
  font-size: clamp(13px, 1.6vw, 16px);
  font-weight: 700;
  border-radius: 3px;
}

.page-faq .faq-group-lede {
  margin: 14px 0 0;
  max-width: 58ch;
  font-size: 15px;
  line-height: 1.85;
  color: var(--gray-300);
}

/* ---------- 配图 ---------- */
.page-faq .faq-figure {
  margin: clamp(20px, 2.6vw, 28px) 0 0;
  border: 2px solid var(--field-700);
  border-radius: var(--radius-cut);
  background: var(--field-800);
  box-shadow: var(--shadow-hard);
  overflow: hidden;
}

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

.page-faq .faq-figure figcaption {
  padding: 10px 14px;
  border-top: 2px solid var(--field-700);
  font-family: var(--font-mono);
  font-size: 12px;
  line-height: 1.6;
  color: var(--gray-300);
}

/* ---------- 可展开内容组 ---------- */
.page-faq .faq-acc {
  margin-top: clamp(20px, 2.6vw, 28px);
  border: 2px solid var(--field-700);
  border-radius: var(--radius-cut);
  background: var(--field-800);
  overflow: hidden;
}

.page-faq .faq-item + .faq-item {
  border-top: 2px solid var(--field-700);
}

.page-faq .faq-q {
  margin: 0;
  font-size: inherit;
  font-weight: inherit;
}

.page-faq .faq-trigger {
  display: flex;
  align-items: center;
  gap: 14px;
  width: 100%;
  padding: 17px 16px;
  border: 0;
  background: transparent;
  color: var(--chalk);
  font: inherit;
  font-weight: 600;
  text-align: left;
  cursor: pointer;
  transition: background 180ms var(--ease), color 180ms var(--ease);
}

.page-faq .faq-trigger:hover {
  background: var(--field-700);
}

.page-faq .faq-trigger[aria-expanded="true"] {
  background: var(--field-700);
  color: var(--yellow-200);
}

.page-faq .faq-trigger::after {
  content: "";
  flex: 0 0 auto;
  width: 9px;
  height: 9px;
  margin-left: 4px;
  border-right: 2px solid var(--yellow-400);
  border-bottom: 2px solid var(--yellow-400);
  transform: rotate(45deg);
  transition: transform 220ms var(--ease);
}

.page-faq .faq-trigger[aria-expanded="true"]::after {
  transform: rotate(225deg);
}

.page-faq .faq-index {
  flex: 0 0 auto;
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 700;
  color: var(--yellow-400);
}

.page-faq .faq-q-text {
  flex: 1 1 auto;
  min-width: 0;
  font-size: clamp(15px, 1.6vw, 17px);
  line-height: 1.5;
}

.page-faq .faq-panel {
  padding: 2px 16px 22px 16px;
}

.page-faq .faq-panel p {
  margin: 0 0 12px;
  max-width: 68ch;
  font-size: 15px;
  line-height: 1.9;
  color: var(--faq-body-text);
}

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

.page-faq .faq-panel a {
  color: var(--yellow-400);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.page-faq .faq-panel a:hover,
.page-faq .faq-panel a:focus-visible {
  color: var(--orange-500);
}

/* ---------- 组尾行动区 ---------- */
.page-faq .faq-next {
  margin-top: clamp(22px, 2.8vw, 30px);
  padding: clamp(20px, 3vw, 28px);
  border: 2px solid var(--ink);
  border-left: 6px solid var(--orange-500);
  border-radius: var(--radius-cut);
  background: var(--field-700);
  box-shadow: var(--shadow-hard);
}

.page-faq .faq-next-text {
  margin: 0 0 16px;
  font-size: 15px;
  line-height: 1.75;
  color: var(--chalk);
}

.page-faq .faq-next-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

/* ---------- 中屏 ---------- */
@media (min-width: 720px) {
  .page-faq .faq-stats {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-faq .faq-panel {
    padding-left: 56px;
  }
}

/* ---------- 宽屏：左侧固定分组导航 ---------- */
@media (min-width: 1000px) {
  .page-faq .faq-layout {
    grid-template-columns: 248px minmax(0, 1fr);
    align-items: start;
    gap: clamp(44px, 5vw, 72px);
  }

  .page-faq .faq-rail {
    position: sticky;
    top: calc(var(--header-h) + 24px);
    align-self: start;
    padding-right: 4px;
  }

  .page-faq .faq-rail-nav {
    flex-direction: column;
    overflow: visible;
    padding-bottom: 0;
  }

  .page-faq .faq-rail-link {
    white-space: normal;
    line-height: 1.4;
  }

  .page-faq .faq-rail-note {
    display: block;
  }

  .page-faq .faq-figure {
    box-shadow: var(--shadow-hard-lg);
  }
}

/* ---------- 动效降级 ---------- */
@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-trigger,
  .page-faq .faq-trigger::after,
  .page-faq .faq-rail-link {
    transition: none;
  }
}
<<<END>>>