.page-faq {
  --faq-line: var(--ink-grid);
  --faq-panel: var(--ink-archive);
  padding-bottom: 32px;
}

/* ---------- 首屏 ---------- */
.page-faq .faq-head {
  padding-top: 20px;
}

.page-faq .faq-head .breadcrumb {
  margin-bottom: 24px;
}

.page-faq .faq-intro {
  max-width: 44ch;
}

.page-faq .faq-intro__eyebrow {
  margin: 0 0 12px;
  font-family: var(--font-index);
  font-size: 0.68rem;
  letter-spacing: 0.26em;
  text-transform: uppercase;
  color: var(--flag-yellow);
}

.page-faq .faq-intro h1 {
  margin: 0 0 16px;
  font-family: var(--font-display);
  font-size: clamp(2rem, 8vw, 3.4rem);
  font-weight: 700;
  line-height: 1.08;
  letter-spacing: 0.12em;
  color: var(--text-strong);
}

.page-faq .faq-intro__lead {
  margin: 0;
  font-size: 1rem;
  line-height: 1.9;
  color: var(--text-body);
}

.page-faq .faq-banner {
  margin: 30px 0 0;
  border: var(--stroke) solid var(--faq-line);
  box-shadow: var(--hard-shadow);
  background: var(--faq-panel);
  overflow: hidden;
}

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

/* ---------- 两栏布局 ---------- */
.page-faq .faq-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: 34px;
  margin-top: 38px;
}

/* ---------- 分类索引 ---------- */
.page-faq .faq-index__title {
  margin: 0 0 14px;
  font-family: var(--font-index);
  font-size: 0.68rem;
  letter-spacing: 0.26em;
  text-transform: uppercase;
  color: var(--text-mute);
}

.page-faq .faq-index__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.page-faq .faq-index__link {
  display: flex;
  align-items: baseline;
  gap: 10px;
  padding: 10px 12px;
  border: var(--stroke) solid var(--faq-line);
  border-left: 6px solid var(--flag-blue);
  background: var(--faq-panel);
  color: var(--text-body);
  font-size: 0.92rem;
  line-height: 1.4;
  text-decoration: none;
  transition: background-color 160ms ease, color 160ms ease, border-left-color 160ms ease;
}

.page-faq .faq-index__link[data-tone="blue"] { border-left-color: var(--flag-blue); }
.page-faq .faq-index__link[data-tone="yellow"] { border-left-color: var(--flag-yellow); }
.page-faq .faq-index__link[data-tone="green"] { border-left-color: var(--flag-green); }
.page-faq .faq-index__link[data-tone="amber"] { border-left-color: var(--amber); }
.page-faq .faq-index__link[data-tone="red"] { border-left-color: var(--flag-red); }
.page-faq .faq-index__link[data-tone="white"] { border-left-color: var(--flag-white); }

.page-faq .faq-index__link:hover,
.page-faq .faq-index__link:focus-visible {
  background: var(--flag-blue);
  color: var(--flag-white);
}

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

.page-faq .faq-index__num {
  font-family: var(--font-index);
  font-size: 0.7rem;
  color: var(--text-mute);
}

.page-faq .faq-index__link:hover .faq-index__num,
.page-faq .faq-index__link:focus-visible .faq-index__num {
  color: var(--flag-white);
}

/* ---------- 问答流 ---------- */
.page-faq .faq-stream {
  display: grid;
  gap: 42px;
  min-width: 0;
}

.page-faq .faq-block {
  min-width: 0;
  scroll-margin-top: 92px;
}

.page-faq .faq-list {
  display: grid;
  gap: 12px;
  margin-top: 18px;
}

.page-faq .faq-item {
  border: var(--stroke) solid var(--faq-line);
  background: var(--faq-panel);
  box-shadow: var(--hard-shadow-sm);
  transition: border-color 200ms ease;
}

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

.page-faq .faq-item__q {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 15px 16px;
  color: var(--flag-white);
  font-size: 1rem;
  font-weight: 600;
  line-height: 1.6;
  cursor: pointer;
  list-style: none;
}

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

.page-faq .faq-item__q::before {
  content: "+";
  flex: 0 0 auto;
  font-family: var(--font-index);
  font-size: 1.05rem;
  line-height: 1.55;
  color: var(--amber);
}

.page-faq .faq-item[open] > .faq-item__q::before {
  content: "–";
}

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

.page-faq .faq-item__a {
  padding: 0 16px 17px 44px;
  font-size: 0.95rem;
  line-height: 1.9;
  color: var(--text-body);
}

.page-faq .faq-item__a > p {
  margin: 0 0 10px;
}

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

.page-faq .faq-link {
  color: var(--flag-blue);
  text-decoration: underline;
  text-underline-offset: 3px;
  transition: color 160ms ease;
}

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

/* ---------- 统计顺序刻度 ---------- */
.page-faq .faq-order {
  list-style: none;
  margin: 20px 0 0;
  padding: 16px;
  border: var(--stroke) solid var(--faq-line);
  background: var(--paper);
  display: grid;
  gap: 11px;
}

.page-faq .faq-order li {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 0.88rem;
  color: var(--ink-void);
}

.page-faq .faq-order__num {
  flex: 0 0 auto;
  font-family: var(--font-index);
  font-size: 0.74rem;
  color: var(--ink-archive);
}

.page-faq .faq-order__label {
  flex: 0 0 auto;
  min-width: 6.4em;
  font-weight: 600;
}

.page-faq .faq-order__bar {
  position: relative;
  flex: 1 1 auto;
  min-width: 40px;
  height: 8px;
  border: 1px solid var(--ink-grid);
  background-image: repeating-linear-gradient(90deg, rgba(37, 57, 92, 0.35) 0 1px, transparent 1px 10px);
  overflow: hidden;
}

.page-faq .faq-order__bar::after {
  content: "";
  position: absolute;
  inset: 0 auto 0 0;
  background: var(--flag-blue);
}

.page-faq .faq-order li:nth-child(1) .faq-order__bar::after { width: 100%; background: var(--flag-blue); }
.page-faq .faq-order li:nth-child(2) .faq-order__bar::after { width: 90%; background: var(--flag-yellow); }
.page-faq .faq-order li:nth-child(3) .faq-order__bar::after { width: 80%; background: var(--flag-green); }
.page-faq .faq-order li:nth-child(4) .faq-order__bar::after { width: 70%; background: var(--amber); }
.page-faq .faq-order li:nth-child(5) .faq-order__bar::after { width: 60%; background: var(--flag-red); }
.page-faq .faq-order li:nth-child(6) .faq-order__bar::after { width: 50%; background: var(--ink-archive); }

/* ---------- 定位球示意图 ---------- */
.page-faq .faq-figure {
  margin: 22px 0 0;
  border: var(--stroke) solid var(--faq-line);
  background: var(--faq-panel);
  overflow: hidden;
}

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

.page-faq .faq-figure__cap {
  display: block;
  padding: 11px 14px;
  border-top: var(--stroke) solid var(--faq-line);
  font-family: var(--font-index);
  font-size: 0.72rem;
  letter-spacing: 0.14em;
  color: var(--amber);
}

/* ---------- 桌面增强 ---------- */
@media (min-width: 920px) {
  .page-faq .faq-head {
    padding-top: 28px;
  }

  .page-faq .faq-layout {
    grid-template-columns: 236px minmax(0, 1fr);
    gap: 52px;
    align-items: start;
    margin-top: 46px;
  }

  .page-faq .faq-index {
    position: sticky;
    top: 80px;
  }

  .page-faq .faq-index__list {
    display: block;
  }

  .page-faq .faq-index__list li + li {
    margin-top: 8px;
  }

  .page-faq .faq-index__link {
    width: 100%;
  }

  .page-faq .faq-item__q {
    font-size: 1.02rem;
  }

  .page-faq .faq-figure {
    max-width: 640px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-index__link,
  .page-faq .faq-item,
  .page-faq .faq-link {
    transition: none;
  }
}
<<<END>>>