.page-faq {
  --faq-paper-line: #1B4A6B;
  --faq-card-bg: rgba(12, 42, 68, 0.72);
  padding-bottom: 3rem;
}

.page-faq .breadcrumb li[aria-current] {
  color: var(--fg-dim);
}

.page-faq .faq-head {
  padding-top: 1.2rem;
  padding-bottom: 1.4rem;
}

.page-faq .faq-head h1 {
  margin: 0.5rem 0 0.9rem;
}

.page-faq .faq-head .meta {
  margin-top: 1rem;
  color: var(--aside);
}

/* 三条快捷路径 */
.page-faq .faq-quick {
  display: grid;
  gap: 0.8rem;
  margin-bottom: 2rem;
}

.page-faq .quick {
  display: grid;
  gap: 0.35rem;
  padding: 1rem 1.1rem;
  background: var(--paper);
  color: var(--ink);
  border: 1px solid var(--faq-paper-line);
  border-left: 4px solid var(--accent);
  text-decoration: none;
  box-shadow: 4px 4px 0 rgba(27, 74, 107, 0.35);
  transition: transform 200ms var(--ease), box-shadow 200ms var(--ease);
}

.page-faq .quick:hover,
.page-faq .quick:focus-visible {
  transform: translate(-2px, -2px);
  box-shadow: 6px 6px 0 rgba(27, 74, 107, 0.45);
}

.page-faq .quick:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
}

.page-faq .quick__k {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  color: var(--slate);
}

.page-faq .quick__t {
  font-family: var(--font-display);
  font-size: 1.28rem;
  font-weight: 700;
  line-height: 1.25;
  color: var(--ink);
}

.page-faq .quick__x {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--signal);
}

/* 布局 */
.page-faq .faq-layout {
  display: grid;
  gap: 1.8rem;
}

.page-faq .faq-body {
  min-width: 0;
}

.page-faq .faq-aside {
  display: none;
}

/* 移动端目录下拉 */
.page-faq .faq-jump {
  border: 1px solid var(--line-strong);
  background: var(--bg-2);
  margin-bottom: 1.6rem;
}

.page-faq .faq-jump > summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.8rem;
  padding: 0.85rem 1rem;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.06em;
  color: var(--fg);
  cursor: pointer;
  list-style: none;
}

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

.page-faq .faq-jump > summary::after {
  content: "";
  width: 0.5rem;
  height: 0.5rem;
  border-right: 2px solid var(--accent);
  border-bottom: 2px solid var(--accent);
  transform: rotate(45deg);
  transition: transform 200ms var(--ease);
}

.page-faq .faq-jump[open] > summary::after {
  transform: rotate(-135deg);
}

.page-faq .faq-jump > summary:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: -2px;
}

.page-faq .faq-jump ol {
  list-style: none;
  margin: 0;
  padding: 0 0 0.6rem;
  border-top: 1px dashed var(--line);
}

.page-faq .faq-jump li a {
  display: block;
  padding: 0.6rem 1rem;
  color: var(--fg-dim);
  text-decoration: none;
  font-size: 0.95rem;
  border-left: 2px solid transparent;
}

.page-faq .faq-jump li a:hover,
.page-faq .faq-jump li a:focus-visible {
  color: var(--accent);
  border-left-color: var(--accent);
  background: rgba(255, 107, 53, 0.07);
}

/* 分组 */
.page-faq .faq-group {
  margin-bottom: 2.4rem;
  scroll-margin-top: 6rem;
}

.page-faq .faq-group__head {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  align-items: center;
  gap: 0.2rem 0.7rem;
  padding-bottom: 0.6rem;
  border-bottom: 2px solid var(--line-strong);
  margin-bottom: 0.4rem;
}

.page-faq .faq-group__num {
  grid-row: 1 / span 2;
  display: grid;
  place-items: center;
  width: 2rem;
  height: 2rem;
  font-family: var(--font-mono);
  font-size: 0.9rem;
  color: var(--on-accent);
  background: var(--accent);
}

.page-faq .faq-group__head h2 {
  margin: 0;
}

.page-faq .faq-group__note {
  grid-column: 2;
  margin: 0;
  font-size: 0.9rem;
  color: var(--fg-dim);
}

/* 问答折叠 */
.page-faq .qa {
  border-bottom: 1px solid var(--line);
  transition: background 200ms var(--ease);
  scroll-margin-top: 6rem;
}

.page-faq .qa[open] {
  background: linear-gradient(90deg, rgba(255, 107, 53, 0.07), rgba(255, 107, 53, 0) 62%);
}

.page-faq .qa > summary {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  align-items: center;
  gap: 0.7rem;
  padding: 1rem 0.6rem 1rem 0.2rem;
  cursor: pointer;
  list-style: none;
}

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

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

.page-faq .qa__idx {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.06em;
  color: var(--aside);
}

.page-faq .qa__text {
  font-size: 1.02rem;
  font-weight: 600;
  line-height: 1.5;
  color: var(--fg);
}

.page-faq .qa > summary::after {
  content: "";
  width: 0.5rem;
  height: 0.5rem;
  border-right: 2px solid var(--accent);
  border-bottom: 2px solid var(--accent);
  transform: rotate(45deg);
  transition: transform 200ms var(--ease);
}

.page-faq .qa[open] > summary::after {
  transform: rotate(-135deg);
}

.page-faq .qa[open] .qa__text {
  color: var(--accent-soft);
}

.page-faq .qa__a {
  padding: 0 0.6rem 1.15rem 2.6rem;
  font-size: 0.97rem;
  line-height: 1.75;
  color: var(--fg-dim);
}

.page-faq .qa__a p {
  margin: 0 0 0.6rem;
  max-width: 62ch;
}

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

.page-faq .qa__a a {
  color: var(--mint);
  text-decoration: underline;
  text-underline-offset: 3px;
}

/* 图文分栏 */
.page-faq .faq-split {
  display: grid;
  gap: 1.2rem;
  margin-top: 0.4rem;
}

.page-faq .qa-list {
  min-width: 0;
}

.page-faq .faq-figure {
  margin: 1rem 0 0;
  border: 1px solid var(--line-strong);
  background: var(--bg-2);
  padding: 0.6rem;
}

.page-faq .faq-figure img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
  border: 1px solid var(--line);
}

.page-faq .faq-figure figcaption {
  margin-top: 0.55rem;
  color: var(--aside);
}

.page-faq .faq-figure--wide {
  margin-bottom: 1.2rem;
}

/* 状态图例 */
.page-faq .state-legend {
  list-style: none;
  margin: 0 0 1.2rem;
  padding: 0;
  display: grid;
  gap: 0.7rem;
}

.page-faq .state-legend li {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 0.25rem 0.6rem;
  padding: 0.85rem 1rem;
  background: var(--faq-card-bg);
  border: 1px solid var(--line);
  border-left: 3px solid var(--steel);
}

.page-faq .state-legend li:nth-child(1) {
  border-left-color: var(--mint);
}

.page-faq .state-legend li:nth-child(2) {
  border-left-color: var(--amber);
}

.page-faq .state-legend li:nth-child(3) {
  border-left-color: var(--slate);
}

.page-faq .state-legend .status-dot {
  align-self: center;
}

.page-faq .state-legend strong {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  letter-spacing: 0.04em;
  color: var(--fg);
}

.page-faq .state-legend p {
  grid-column: 2;
  margin: 0;
  font-size: 0.92rem;
  line-height: 1.7;
  color: var(--fg-dim);
}

/* 联系支持卡 */
.page-faq .support-card {
  display: grid;
  gap: 1.2rem;
  padding: 1.2rem;
  background: var(--paper);
  color: var(--ink);
  border: 1px solid var(--faq-paper-line);
  border-top: 4px solid var(--accent);
  box-shadow: 5px 5px 0 rgba(27, 74, 107, 0.3);
}

.page-faq .support-card__main p {
  margin: 0 0 1rem;
  font-size: 0.97rem;
  line-height: 1.75;
  color: #21323f;
  max-width: 58ch;
}

.page-faq .support-card__main strong {
  color: var(--ink);
}

.page-faq .support-card__list {
  margin: 0;
  display: grid;
  gap: 0.6rem;
  align-content: start;
}

.page-faq .support-card__list > div {
  padding-bottom: 0.55rem;
  border-bottom: 1px dashed rgba(27, 74, 107, 0.35);
}

.page-faq .support-card__list dt {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.08em;
  color: #4a6272;
}

.page-faq .support-card__list dd {
  margin: 0.15rem 0 0;
  font-family: var(--font-mono);
  font-size: 0.86rem;
  color: var(--ink);
  word-break: break-word;
}

.page-faq .faq-fineprint {
  margin-top: 1.2rem;
  font-size: 0.9rem;
  line-height: 1.75;
  color: var(--fg-dim);
}

.page-faq .faq-fineprint a {
  color: var(--mint);
  text-decoration: underline;
  text-underline-offset: 3px;
}

/* 平板与桌面 */
@media (min-width: 720px) {
  .page-faq .faq-quick {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 1rem;
  }

  .page-faq .state-legend {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-faq .qa__a {
    padding-left: 3.1rem;
  }

  .page-faq .faq-split {
    grid-template-columns: minmax(0, 1fr) 220px;
    align-items: start;
    gap: 1.4rem;
  }

  .page-faq .faq-figure {
    margin-top: 0;
  }

  .page-faq .support-card {
    grid-template-columns: minmax(0, 1fr) 260px;
    padding: 1.6rem;
    gap: 1.6rem;
  }
}

@media (min-width: 960px) {
  .page-faq .faq-layout {
    grid-template-columns: minmax(0, 1fr) 232px;
    gap: 2.6rem;
    align-items: start;
  }

  .page-faq .faq-aside {
    display: block;
    position: sticky;
    top: 5.6rem;
  }

  .page-faq .faq-jump {
    display: none;
  }

  .page-faq .faq-toc {
    border-left: 1px solid var(--line-strong);
    padding-left: 1.1rem;
  }

  .page-faq .faq-toc .meta {
    margin: 0 0 0.8rem;
    color: var(--aside);
    letter-spacing: 0.1em;
  }

  .page-faq .faq-toc ol {
    list-style: none;
    margin: 0;
    padding: 0;
  }

  .page-faq .faq-toc li {
    position: relative;
  }

  .page-faq .faq-toc a {
    display: block;
    padding: 0.42rem 0 0.42rem 0.8rem;
    font-size: 0.88rem;
    line-height: 1.4;
    color: var(--fg-dim);
    text-decoration: none;
    border-left: 2px solid transparent;
    margin-left: -1.12rem;
    padding-left: 0.95rem;
    transition: color 160ms var(--ease), border-color 160ms var(--ease);
  }

  .page-faq .faq-toc a:hover,
  .page-faq .faq-toc a:focus-visible {
    color: var(--fg);
    border-left-color: var(--line-strong);
  }

  .page-faq .faq-toc a[aria-current="true"] {
    color: var(--accent);
    border-left-color: var(--accent);
    font-weight: 600;
  }

  .page-faq .faq-group {
    margin-bottom: 3rem;
  }

  .page-faq .qa__text {
    font-size: 1.06rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .quick,
  .page-faq .qa,
  .page-faq .qa > summary::after,
  .page-faq .faq-jump > summary::after,
  .page-faq .faq-toc a {
    transition: none;
  }

  .page-faq .quick:hover,
  .page-faq .quick:focus-visible {
    transform: none;
  }
}
<<<END>>>