.page-faq {
  --branch: var(--lime-400);
  --faq-head-offset: 112px;
  color: var(--text);
  padding-bottom: 8px;
}

/* ---------- 面包屑 ---------- */
.page-faq .crumbs {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  padding: 28px 0 0;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.05em;
  color: var(--text-faint);
}

.page-faq .crumbs a {
  color: var(--text-dim);
  text-decoration: none;
  transition: color var(--dur) var(--ease);
}

.page-faq .crumbs a:hover,
.page-faq .crumbs a:focus-visible {
  color: var(--lime-400);
}

.page-faq .crumbs-sep {
  color: rgba(233, 237, 230, 0.28);
}

.page-faq .crumbs-now {
  color: var(--gold-500);
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  padding: 28px 0 36px;
  border-bottom: 1px solid var(--line);
}

.page-faq .faq-hero .eyebrow {
  display: inline-block;
  margin: 0 0 18px;
  padding: 6px 12px;
  border: 1px solid var(--line-lime);
  border-radius: 999px;
  color: var(--lime-400);
  font-size: 11px;
  letter-spacing: 0.16em;
}

.page-faq .faq-title {
  margin: 0 0 20px;
  max-width: 16ch;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(40px, 8vw, 78px);
  line-height: 0.98;
  letter-spacing: -0.02em;
  color: var(--mist-100);
  transform: skewX(-2deg);
  transform-origin: left center;
}

.page-faq .faq-lede {
  margin: 0;
  max-width: 64ch;
  font-size: 16px;
  line-height: 1.8;
  color: var(--text-dim);
}

.page-faq .faq-hero-tags {
  list-style: none;
  margin: 26px 0 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 12px 26px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.04em;
  color: var(--text-dim);
}

.page-faq .faq-hero-tags li {
  display: flex;
  align-items: center;
  gap: 8px;
}

.page-faq .dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  flex: none;
}

.page-faq .dot--lime { background: var(--lime-400); }
.page-faq .dot--gold { background: var(--gold-500); }
.page-faq .dot--mint { background: var(--mint-300); }

/* ---------- 布局 ---------- */
.page-faq .faq-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 28px;
  padding-top: 32px;
  padding-bottom: 64px;
}

.page-faq .faq-index,
.page-faq .faq-stream {
  min-width: 0;
}

/* ---------- 侧边索引 ---------- */
.page-faq .faq-index-title {
  margin: 0 0 14px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.18em;
  color: var(--text-faint);
}

.page-faq .faq-tree {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  gap: 8px;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: thin;
}

.page-faq .faq-tree li {
  margin: 0;
  flex: none;
  position: relative;
}

.page-faq .faq-tree li:nth-child(1) { --branch: var(--lime-400); }
.page-faq .faq-tree li:nth-child(2) { --branch: var(--gold-500); }
.page-faq .faq-tree li:nth-child(3) { --branch: var(--mint-300); }
.page-faq .faq-tree li:nth-child(4) { --branch: rgba(233, 237, 230, 0.5); }

.page-faq .faq-tree a {
  display: block;
  padding: 10px 14px;
  white-space: nowrap;
  border: 1px solid var(--line);
  border-radius: 999px;
  color: var(--text-dim);
  font-size: 13px;
  text-decoration: none;
  transition: color var(--dur) var(--ease), border-color var(--dur) var(--ease), background var(--dur) var(--ease);
}

.page-faq .faq-tree a:hover,
.page-faq .faq-tree a:focus-visible {
  color: var(--mist-100);
  border-color: var(--branch);
  background: rgba(233, 237, 230, 0.06);
}

.page-faq .faq-tree .idx {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--branch);
  margin-right: 8px;
}

.page-faq .faq-index-note {
  margin-top: 22px;
  padding: 18px;
  border: 1px solid var(--line);
  border-radius: var(--radius-m);
  background: rgba(18, 41, 31, 0.5);
}

.page-faq .faq-index-note p {
  margin: 0 0 14px;
  font-size: 13px;
  line-height: 1.7;
  color: var(--text-dim);
}

.page-faq .faq-index-note .btn {
  width: 100%;
  justify-content: center;
}

/* ---------- 分支 ---------- */
.page-faq .faq-branch {
  --branch: var(--lime-400);
  scroll-margin-top: var(--faq-head-offset);
  margin-bottom: 52px;
}

.page-faq .faq-branch--download { --branch: var(--gold-500); }
.page-faq .faq-branch--watch { --branch: var(--mint-300); }

.page-faq .branch-head {
  display: flex;
  align-items: baseline;
  gap: 14px;
  padding-bottom: 14px;
  margin-bottom: 6px;
  border-bottom: 1px solid var(--line);
}

.page-faq .branch-num {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--branch);
  flex: none;
}

.page-faq .branch-title {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(24px, 4vw, 34px);
  line-height: 1.15;
  letter-spacing: -0.01em;
  color: var(--mist-100);
}

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

.page-faq .faq-item summary {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  min-height: 44px;
  padding: 18px 4px;
  cursor: pointer;
  list-style: none;
  border-radius: var(--radius-s);
  transition: color var(--dur) var(--ease);
}

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

.page-faq .faq-item summary::marker { content: ""; }

.page-faq .faq-item summary:focus-visible {
  outline: 2px solid var(--branch);
  outline-offset: 2px;
}

.page-faq .q-num {
  flex: none;
  min-width: 34px;
  padding-top: 4px;
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--text-faint);
  letter-spacing: 0.04em;
}

.page-faq .q-text {
  flex: 1;
  font-size: 16px;
  font-weight: 500;
  line-height: 1.55;
  color: var(--mist-100);
}

.page-faq .q-toggle {
  flex: none;
  position: relative;
  width: 22px;
  height: 22px;
  margin-top: 1px;
  border: 1px solid var(--line);
  border-radius: 50%;
  transition: border-color var(--dur) var(--ease), background var(--dur) var(--ease);
}

.page-faq .q-toggle::before,
.page-faq .q-toggle::after {
  content: "";
  position: absolute;
  left: 50%;
  top: 50%;
  width: 9px;
  height: 1.5px;
  background: var(--text-dim);
  transform: translate(-50%, -50%);
  transition: transform var(--dur) var(--ease), background var(--dur) var(--ease);
}

.page-faq .q-toggle::after {
  transform: translate(-50%, -50%) rotate(90deg);
}

.page-faq .faq-item[open] .q-toggle {
  border-color: var(--branch);
  background: rgba(233, 237, 230, 0.06);
}

.page-faq .faq-item[open] .q-toggle::before {
  background: var(--branch);
}

.page-faq .faq-item[open] .q-toggle::after {
  transform: translate(-50%, -50%) rotate(0deg);
}

.page-faq .faq-answer {
  padding: 0 4px 22px;
}

.page-faq .faq-answer p {
  margin: 0 0 10px;
  max-width: 62ch;
  font-size: 15px;
  line-height: 1.8;
  color: var(--text-dim);
}

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

.page-faq .faq-answer a {
  color: var(--gold-500);
  text-decoration: underline;
  text-underline-offset: 3px;
  transition: color var(--dur) var(--ease);
}

.page-faq .faq-answer a:hover,
.page-faq .faq-answer a:focus-visible {
  color: var(--lime-400);
}

/* ---------- 配图 ---------- */
.page-faq .faq-figure {
  margin: 28px 0 0;
  border: 1px solid var(--line);
  border-radius: var(--radius-m);
  overflow: hidden;
  background: var(--ink-800);
}

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

.page-faq .faq-figure figcaption {
  padding: 12px 16px;
  border-top: 1px solid var(--line);
  font-family: var(--font-mono);
  font-size: 12px;
  line-height: 1.6;
  letter-spacing: 0.03em;
  color: var(--text-faint);
}

/* ---------- 收尾 ---------- */
.page-faq .faq-help {
  padding: clamp(26px, 4vw, 44px);
  border: 1px solid var(--line-lime);
  border-radius: var(--radius-l);
  background:
    radial-gradient(120% 150% at 100% 0%, rgba(184, 255, 74, 0.16), transparent 62%),
    linear-gradient(158deg, var(--ink-800), var(--ink-900));
}

.page-faq .faq-help-title {
  margin: 0 0 14px;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(26px, 4.4vw, 40px);
  line-height: 1.1;
  letter-spacing: -0.01em;
  color: var(--mist-100);
}

.page-faq .faq-help p {
  margin: 0 0 22px;
  max-width: 58ch;
  font-size: 15px;
  line-height: 1.8;
  color: var(--text-dim);
}

/* ---------- 平板以上 ---------- */
@media (min-width: 720px) {
  .page-faq .faq-answer {
    padding-left: 46px;
  }

  .page-faq .faq-hero {
    padding: 36px 0 44px;
  }
}

@media (min-width: 960px) {
  .page-faq .faq-layout {
    grid-template-columns: 248px minmax(0, 1fr);
    gap: 56px;
    padding-top: 48px;
    padding-bottom: 88px;
  }

  .page-faq .faq-index {
    position: sticky;
    top: var(--faq-head-offset);
    align-self: start;
  }

  .page-faq .faq-tree {
    display: block;
    overflow: visible;
    padding-left: 18px;
    position: relative;
  }

  .page-faq .faq-tree::before {
    content: "";
    position: absolute;
    left: 4px;
    top: 10px;
    bottom: 10px;
    width: 1px;
    background: linear-gradient(180deg, var(--line-lime), rgba(233, 237, 230, 0.1));
  }

  .page-faq .faq-tree li {
    margin-bottom: 4px;
  }

  .page-faq .faq-tree li::before {
    content: "";
    position: absolute;
    left: -18px;
    top: 15px;
    width: 9px;
    height: 9px;
    border-radius: 50%;
    background: var(--ink-950);
    border: 2px solid var(--branch);
  }

  .page-faq .faq-tree a {
    padding: 9px 10px;
    border-color: transparent;
    border-radius: var(--radius-s);
    white-space: normal;
  }

  .page-faq .faq-tree a:hover,
  .page-faq .faq-tree a:focus-visible {
    border-color: transparent;
    background: rgba(233, 237, 230, 0.07);
  }

  .page-faq .faq-index-note .btn {
    width: auto;
  }

  .page-faq .faq-branch {
    margin-bottom: 64px;
  }

  .page-faq .faq-figure--wide {
    margin-top: 34px;
  }
}

@media (min-width: 1200px) {
  .page-faq .faq-layout {
    grid-template-columns: 272px minmax(0, 1fr);
    gap: 72px;
  }
}

/* ---------- 无障碍动效降级 ---------- */
@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-title {
    transform: none;
  }

  .page-faq .faq-tree a,
  .page-faq .faq-item summary,
  .page-faq .q-toggle,
  .page-faq .q-toggle::before,
  .page-faq .q-toggle::after {
    transition-duration: 1ms;
  }
}
<<<PAGE_CSS_END>>>