/* ===== 问题解答页 / page-faq ===== */

.page-faq {
  --faq-index-w: 228px;
  --faq-gap: 42px;
  --faq-cyan-soft: rgba(56, 240, 208, 0.42);
  --faq-orange-soft: rgba(255, 106, 31, 0.42);
  color: var(--text);
  font-family: var(--font-body);
}

/* ---------- 首屏拼贴 ---------- */
.page-faq .faq-hero {
  padding: 34px 0 38px;
}

.page-faq .faq-hero-grid {
  display: grid;
  gap: 26px;
}

.page-faq .faq-hero-main h1 {
  margin: 14px 0 18px;
  font-family: var(--font-display);
  font-size: clamp(31px, 8vw, 52px);
  font-weight: 700;
  line-height: 1.06;
  letter-spacing: -0.015em;
  color: var(--paper);
}

.page-faq .faq-hero-main .lead {
  margin: 0;
  max-width: 34em;
  color: var(--text);
}

.page-faq .faq-points {
  list-style: none;
  margin: 24px 0 0;
  padding: 0;
  display: grid;
  gap: 9px;
  border-top: 1px solid var(--line);
  padding-top: 18px;
}

.page-faq .faq-points li {
  display: grid;
  grid-template-columns: 18px 1fr;
  gap: 10px;
  align-items: start;
  font-size: 14px;
  line-height: 1.6;
  color: var(--muted);
}

.page-faq .faq-point-mark {
  display: block;
  width: 12px;
  height: 1px;
  margin-top: 10px;
  background: var(--orange);
}

.page-faq .faq-brief {
  background: var(--indigo);
  border: 1px solid var(--line-strong);
  border-radius: 1px;
  padding: 18px 18px 16px;
}

.page-faq .faq-brief dl {
  margin: 12px 0 0;
  display: grid;
  gap: 0;
}

.page-faq .faq-brief-row {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 14px;
  padding: 9px 0;
  border-top: 1px solid var(--line);
}

.page-faq .faq-brief-row dt {
  font-size: 13px;
  color: var(--muted);
}

.page-faq .faq-brief-row dd {
  margin: 0;
  font-size: 14px;
  color: var(--paper);
  letter-spacing: 0.02em;
}

.page-faq .faq-brief-note {
  margin: 14px 0 0;
  padding-top: 12px;
  border-top: 1px dashed var(--line-strong);
  font-size: 12.5px;
  line-height: 1.6;
  color: var(--muted);
}

/* ---------- 主布局 ---------- */
.page-faq .faq-layout {
  display: grid;
  gap: 28px;
  padding: 30px 0 12px;
}

/* ---------- 左侧编号索引 ---------- */
.page-faq .faq-index {
  border-top: 1px solid var(--line-strong);
  padding-top: 12px;
}

.page-faq .faq-index-list {
  list-style: none;
  margin: 12px 0 0;
  padding: 0 0 6px;
  display: flex;
  gap: 6px;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}

.page-faq .faq-index-list li {
  flex: 0 0 auto;
}

.page-faq .faq-index-link {
  display: flex;
  align-items: baseline;
  gap: 8px;
  padding: 8px 10px;
  white-space: nowrap;
  font-size: 13.5px;
  color: var(--muted);
  text-decoration: none;
  border-left: 2px solid transparent;
  border-radius: 1px;
  transition: color 0.12s linear, background-color 0.12s linear, border-color 0.12s linear;
}

.page-faq .faq-index-link .mono {
  font-size: 11.5px;
  letter-spacing: 0.08em;
  color: var(--cyan);
}

.page-faq .faq-index-link:hover,
.page-faq .faq-index-link:focus-visible {
  color: var(--paper);
  background: var(--ink-2);
  border-left-color: var(--orange);
  outline: none;
}

/* ---------- 问答分组 ---------- */
.page-faq .faq-group {
  margin-bottom: 46px;
  scroll-margin-top: 18px;
}

.page-faq .faq-group:last-child {
  margin-bottom: 12px;
}

.page-faq .faq-group-head {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 6px 14px;
  align-items: baseline;
  padding-bottom: 12px;
  margin-bottom: 16px;
  border-bottom: 2px solid var(--line-strong);
}

.page-faq .faq-group-num {
  font-family: var(--font-mono);
  font-size: 24px;
  line-height: 1;
  color: var(--orange);
  letter-spacing: 0.02em;
}

.page-faq .faq-group-head h2 {
  margin: 0;
  font-family: var(--font-serif);
  font-size: 21px;
  font-weight: 600;
  letter-spacing: 0.01em;
  color: var(--paper);
}

.page-faq .faq-group-sub {
  grid-column: 1 / -1;
  margin: 0;
  font-size: 13px;
  line-height: 1.6;
  color: var(--muted);
}

/* ---------- 折叠问答 ---------- */
.page-faq .qa {
  margin-bottom: 10px;
  background: var(--ink-2);
  border: 1px solid var(--line);
  border-left: 2px solid var(--line-strong);
  border-radius: 1px;
  transition: background-color 0.12s linear, border-color 0.12s linear;
}

.page-faq .qa:last-of-type {
  margin-bottom: 0;
}

.page-faq .qa:hover {
  border-top-color: var(--line-strong);
  border-right-color: var(--line-strong);
  border-bottom-color: var(--line-strong);
}

.page-faq .qa[open] {
  background: var(--ink-3);
  border-left-color: var(--orange);
}

.page-faq .qa summary {
  display: grid;
  grid-template-columns: auto 1fr auto;
  gap: 13px;
  align-items: start;
  padding: 15px 16px;
  cursor: pointer;
  list-style: none;
}

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

.page-faq .qa summary:focus-visible {
  outline: 1px solid var(--cyan);
  outline-offset: -2px;
}

.page-faq .qa-num {
  font-family: var(--font-mono);
  font-size: 11.5px;
  line-height: 1.9;
  letter-spacing: 0.08em;
  color: var(--muted);
  transition: color 0.12s linear;
}

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

.page-faq .qa-text {
  font-size: 16px;
  line-height: 1.5;
  color: var(--paper);
}

.page-faq .qa-mark {
  position: relative;
  width: 12px;
  height: 12px;
  margin-top: 6px;
  flex: 0 0 auto;
}

.page-faq .qa-mark::before,
.page-faq .qa-mark::after {
  content: "";
  position: absolute;
  left: 0;
  top: 5px;
  width: 12px;
  height: 1px;
  background: var(--muted);
  transition: transform 0.15s linear, background-color 0.15s linear;
}

.page-faq .qa-mark::after {
  transform: rotate(90deg);
}

.page-faq .qa[open] .qa-mark::before,
.page-faq .qa[open] .qa-mark::after {
  background: var(--cyan);
}

.page-faq .qa[open] .qa-mark::after {
  transform: rotate(0deg);
}

.page-faq .qa-a {
  padding: 14px 16px 18px;
  border-top: 1px solid var(--line);
  font-size: 15px;
  line-height: 1.72;
  color: var(--text);
}

.page-faq .qa-a p {
  margin: 0 0 10px;
  max-width: var(--measure);
}

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

.page-faq .qa-a .mono {
  font-family: var(--font-mono);
  color: var(--paper);
  letter-spacing: 0.02em;
}

.page-faq .faq-k {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid var(--faq-cyan-soft);
}

.page-faq .faq-k:hover {
  color: var(--orange);
  border-bottom-color: var(--faq-orange-soft);
}

.page-faq .qa-next {
  margin-top: 12px;
  padding-top: 10px;
  border-top: 1px dashed var(--line-strong);
  font-size: 13px;
  line-height: 1.6;
  color: var(--muted);
}

.page-faq .qa-next a {
  color: var(--orange);
  text-decoration: none;
  border-bottom: 1px solid var(--faq-orange-soft);
}

.page-faq .qa-next a:hover {
  color: var(--cyan);
  border-bottom-color: var(--faq-cyan-soft);
}

/* ---------- 图位 ---------- */
.page-faq .faq-figure {
  margin: 22px 0 0;
}

/* ---------- 收尾去向 ---------- */
.page-faq .faq-outro {
  padding: 34px 0 54px;
}

.page-faq .faq-outro-inner {
  display: grid;
  gap: 22px;
}

.page-faq .faq-outro-text h2 {
  margin: 10px 0 8px;
  font-family: var(--font-serif);
  font-size: 22px;
  font-weight: 600;
  color: var(--paper);
}

.page-faq .faq-outro-text p {
  margin: 0;
  max-width: 32em;
  font-size: 14.5px;
  line-height: 1.7;
  color: var(--muted);
}

.page-faq .faq-outro-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 10px;
}

.page-faq .faq-outro-link {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 4px 14px;
  padding: 14px 16px;
  background: var(--ink-2);
  border: 1px solid var(--line);
  border-left: 2px solid var(--line-strong);
  border-radius: 1px;
  text-decoration: none;
  transition: border-color 0.12s linear, background-color 0.12s linear;
}

.page-faq .faq-outro-link .mono {
  grid-row: span 2;
  font-family: var(--font-mono);
  font-size: 15px;
  line-height: 1.5;
  color: var(--cyan);
}

.page-faq .faq-outro-link strong {
  font-size: 15px;
  font-weight: 600;
  color: var(--paper);
}

.page-faq .faq-outro-link span:last-child {
  font-size: 13px;
  line-height: 1.55;
  color: var(--muted);
}

.page-faq .faq-outro-link:hover,
.page-faq .faq-outro-link:focus-visible {
  background: var(--ink-3);
  border-left-color: var(--orange);
  outline: none;
}

.page-faq .faq-outro-link:hover strong {
  color: var(--orange);
}

/* ---------- 桌面端 ---------- */
@media (min-width: 900px) {
  .page-faq .faq-hero {
    padding: 52px 0 46px;
  }

  .page-faq .faq-hero-grid {
    grid-template-columns: minmax(0, 1.55fr) minmax(0, 0.85fr);
    gap: 46px;
    align-items: end;
  }

  .page-faq .faq-layout {
    grid-template-columns: var(--faq-index-w) minmax(0, 1fr);
    gap: var(--faq-gap);
    padding: 44px 0 16px;
  }

  .page-faq .faq-index {
    position: sticky;
    top: 20px;
    align-self: start;
    border-top-color: var(--orange);
  }

  .page-faq .faq-index-list {
    flex-direction: column;
    gap: 2px;
    overflow: visible;
    margin-top: 14px;
  }

  .page-faq .faq-index-link {
    font-size: 13px;
  }

  .page-faq .faq-group-num {
    font-size: 32px;
  }

  .page-faq .faq-group-head h2 {
    font-size: 24px;
  }

  .page-faq .qa summary {
    padding: 17px 20px;
    gap: 16px;
  }

  .page-faq .qa-a {
    padding: 16px 20px 20px;
    padding-left: 66px;
  }

  .page-faq .faq-outro-inner {
    grid-template-columns: minmax(0, 0.85fr) minmax(0, 1.15fr);
    gap: 40px;
    align-items: start;
  }

  .page-faq .faq-outro-list {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 12px;
  }

  .page-faq .faq-outro-link {
    grid-template-columns: 1fr;
    gap: 8px;
    padding: 16px 16px 18px;
  }

  .page-faq .faq-outro-link .mono {
    grid-row: auto;
  }
}
<<<END>>>