.page-faq {
  --faq-index-w: 220px;
  background: var(--rice-050);
  color: var(--ink-900);
  padding-bottom: 72px;
}

.page-faq .breadcrumb {
  padding-top: 24px;
  font-size: 13px;
  color: var(--celadon-500);
}

.page-faq .breadcrumb a {
  color: var(--ink-700);
  text-decoration: none;
  border-bottom: 1px solid var(--line-200);
}

.page-faq .breadcrumb a:hover,
.page-faq .breadcrumb a:focus-visible {
  border-bottom-color: var(--cinnabar-600);
  color: var(--cinnabar-600);
}

.page-faq .breadcrumb__sep {
  margin: 0 8px;
  color: var(--copper-500);
}

/* 首屏 */
.page-faq .faq-hero {
  padding: 36px 0 44px;
  border-bottom: 1px solid var(--line-200);
}

.page-faq .faq-hero h1 {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(2rem, 7vw, 4.1rem);
  line-height: 1.14;
  letter-spacing: -0.02em;
  margin: 14px 0 18px;
  max-width: 14em;
}

.page-faq .lede {
  font-size: clamp(1rem, 2.4vw, 1.15rem);
  line-height: 1.78;
  color: var(--ink-700);
  max-width: 36em;
  margin: 0;
}

.page-faq .hero-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 12px;
  margin-top: 24px;
}

.page-faq .hero-meta .mono {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.04em;
  color: var(--ink-700);
  background: var(--rice-100);
  border: 1px solid var(--line-200);
  border-radius: var(--radius-pill);
  padding: 6px 14px;
}

/* 版式骨架 */
.page-faq .tutorial-shell {
  display: grid;
  gap: 34px;
  padding-top: 44px;
}

.page-faq .guide-index {
  border-left: 2px solid var(--line-200);
  padding-left: 16px;
}

.page-faq .guide-index__title {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--copper-500);
  margin: 0 0 14px;
}

.page-faq .guide-index__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 4px;
}

.page-faq .guide-index__item a {
  display: flex;
  align-items: baseline;
  gap: 10px;
  padding: 8px 10px 8px 12px;
  margin-left: -14px;
  border-left: 2px solid transparent;
  color: var(--ink-700);
  font-size: 14px;
  text-decoration: none;
  transition: color 160ms ease, border-color 160ms ease, background 160ms ease;
}

.page-faq .guide-index__idx {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--celadon-500);
  letter-spacing: 0.06em;
}

.page-faq .guide-index__item a:hover,
.page-faq .guide-index__item a:focus-visible {
  border-left-color: var(--cinnabar-600);
  color: var(--cinnabar-600);
  background: var(--rice-100);
}

.page-faq .guide-index__item a:hover .guide-index__idx,
.page-faq .guide-index__item a:focus-visible .guide-index__idx {
  color: var(--cinnabar-600);
}

.page-faq .guide-index .note {
  font-size: 13px;
  line-height: 1.65;
  color: var(--celadon-500);
  margin: 18px 0 0;
}

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

.page-faq .tutorial-block {
  scroll-margin-top: calc(var(--header-h) + 24px);
  padding-bottom: 56px;
  margin-bottom: 8px;
  border-bottom: 1px solid var(--line-200);
}

.page-faq .tutorial-block:last-child {
  border-bottom: 0;
  padding-bottom: 0;
}

.page-faq .tutorial-block h2 {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(1.45rem, 4vw, 2.3rem);
  line-height: 1.26;
  letter-spacing: -0.01em;
  margin: 10px 0 16px;
  max-width: 18em;
}

.page-faq .prose {
  max-width: 38em;
  font-size: 15.5px;
  line-height: 1.8;
  color: var(--ink-700);
  margin: 0;
}

.page-faq .eyebrow {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--copper-500);
  margin: 0;
}

/* 三步 */
.page-faq .steps {
  list-style: none;
  margin: 26px 0 0;
  padding: 0;
  position: relative;
  display: grid;
  gap: 16px;
}

.page-faq .steps::before {
  content: "";
  position: absolute;
  left: 41px;
  top: 28px;
  bottom: 28px;
  width: 1px;
  background: linear-gradient(to bottom, var(--copper-500), rgba(184, 135, 59, 0));
}

.page-faq .step {
  position: relative;
  display: grid;
  grid-template-columns: 44px minmax(0, 1fr);
  gap: 14px;
  background: var(--rice-100);
  border-radius: var(--radius-lg);
  padding: 22px 20px;
}

.page-faq .step__num {
  font-family: var(--font-mono);
  font-size: 26px;
  font-weight: 700;
  line-height: 1;
  color: var(--cinnabar-600);
  letter-spacing: 0.02em;
}

.page-faq .step__body h3 {
  font-size: 1.02rem;
  font-weight: 700;
  margin: 0 0 8px;
  line-height: 1.45;
  color: var(--ink-900);
}

.page-faq .step__body p {
  margin: 0 0 10px;
  font-size: 14.6px;
  line-height: 1.78;
  color: var(--ink-700);
}

.page-faq .step__tip {
  margin: 0;
  font-size: 13.2px;
  line-height: 1.7;
  color: var(--celadon-500);
  border-left: 2px solid var(--amber-400);
  padding-left: 10px;
}

/* 图 */
.page-faq .media-frame {
  margin: 24px 0 0;
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: var(--rice-100);
}

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

.page-faq .media-frame__caption {
  font-size: 12.5px;
  line-height: 1.65;
  color: var(--celadon-500);
  padding: 10px 14px 12px;
  border-top: 1px solid var(--line-200);
}

/* 深色明细表 */
.page-faq .faq-board {
  margin-top: 26px;
  background: var(--jade-800);
  color: var(--rice-050);
  border-radius: var(--radius-lg);
  padding: 22px 0 14px;
  overflow: hidden;
}

.page-faq .faq-board__head {
  padding: 0 20px 16px;
}

.page-faq .faq-board__tag {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.05em;
  color: var(--copper-500);
  margin: 0 0 8px;
}

.page-faq .faq-board__lead {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.7;
  color: var(--rice-050);
  opacity: 0.9;
  max-width: 34em;
}

.page-faq .table-wrap {
  position: relative;
}

.page-faq .table-wrap::before,
.page-faq .table-wrap::after {
  content: "";
  position: absolute;
  top: 0;
  bottom: 0;
  width: 34px;
  pointer-events: none;
  z-index: 1;
}

.page-faq .table-wrap::before {
  left: 0;
  background: linear-gradient(to right, var(--jade-800), rgba(15, 59, 54, 0));
}

.page-faq .table-wrap::after {
  right: 0;
  background: linear-gradient(to left, var(--jade-800), rgba(15, 59, 54, 0));
}

.page-faq .table-scroll {
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  scroll-snap-type: x proximity;
}

.page-faq .table-scroll:focus-visible {
  outline: 2px solid var(--amber-400);
  outline-offset: -2px;
}

.page-faq .cols-table {
  border-collapse: collapse;
  width: max-content;
  min-width: 100%;
  font-size: 13px;
}

.page-faq .cols-table th,
.page-faq .cols-table td {
  padding: 12px 14px;
  text-align: right;
  white-space: nowrap;
  border-bottom: 1px solid rgba(247, 242, 231, 0.14);
}

.page-faq .cols-table th {
  font-family: var(--font-mono);
  font-size: 11.5px;
  font-weight: 600;
  letter-spacing: 0.05em;
  color: var(--copper-500);
  border-bottom-color: rgba(184, 135, 59, 0.45);
}

.page-faq .cols-table td {
  font-family: var(--font-mono);
  color: var(--rice-050);
  letter-spacing: 0.02em;
}

.page-faq .cols-table th:first-child,
.page-faq .cols-table td:first-child {
  text-align: left;
  padding-left: 20px;
}

.page-faq .cols-table tbody tr:hover td {
  background: rgba(247, 242, 231, 0.07);
}

.page-faq .cols-table .is-key {
  background: rgba(179, 49, 39, 0.32);
  color: var(--rice-050);
}

.page-faq .cols-table th.is-key {
  color: var(--amber-400);
}

.page-faq .faq-board__hint {
  margin: 12px 20px 0;
  font-size: 12px;
  letter-spacing: 0.04em;
  color: rgba(247, 242, 231, 0.72);
}

/* 字段清单 */
.page-faq .columns-list {
  margin: 26px 0 0;
  padding: 0;
  display: grid;
  gap: 14px;
}

.page-faq .columns-list .field {
  border-top: 1px solid var(--line-200);
  padding-top: 12px;
}

.page-faq .columns-list dt {
  font-family: var(--font-mono);
  font-size: 13.5px;
  font-weight: 700;
  letter-spacing: 0.03em;
  color: var(--cinnabar-600);
}

.page-faq .columns-list dd {
  margin: 6px 0 0;
  font-size: 14.4px;
  line-height: 1.76;
  color: var(--ink-700);
}

/* 胜负统计 */
.page-faq .ways {
  margin-top: 26px;
  display: grid;
  gap: 16px;
}

.page-faq .way {
  background: var(--rice-100);
  border-radius: var(--radius-md);
  padding: 20px;
  border-top: 3px solid var(--copper-500);
}

.page-faq .way:nth-child(2) {
  border-top-color: var(--cinnabar-600);
}

.page-faq .way:nth-child(3) {
  border-top-color: var(--celadon-500);
}

.page-faq .way__num {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--copper-500);
}

.page-faq .way h3 {
  font-family: var(--font-display);
  font-size: 1.08rem;
  font-weight: 700;
  margin: 8px 0 10px;
  color: var(--ink-900);
}

.page-faq .way p {
  margin: 0;
  font-size: 14.2px;
  line-height: 1.78;
  color: var(--ink-700);
}

.page-faq .misreads {
  margin-top: 22px;
  display: grid;
  gap: 14px;
}

.page-faq .misread {
  border-left: 3px solid var(--amber-400);
  padding: 4px 0 4px 14px;
}

.page-faq .misread__title {
  margin: 0 0 6px;
  font-weight: 700;
  font-size: 15px;
  color: var(--ink-900);
}

.page-faq .misread p {
  margin: 0;
  font-size: 14.2px;
  line-height: 1.78;
  color: var(--ink-700);
  max-width: 40em;
}

/* 两端差异 */
.page-faq .device-grid {
  margin-top: 22px;
  display: grid;
  gap: 16px;
}

.page-faq .device-card {
  border-radius: var(--radius-lg);
  padding: 22px 20px;
  border: 1px solid var(--line-200);
  background: var(--rice-100);
}

.page-faq .device-card--mobile {
  background: var(--wine-800);
  border-color: transparent;
  color: var(--rice-050);
}

.page-faq .device-card h3 {
  font-family: var(--font-display);
  font-size: 1.12rem;
  font-weight: 700;
  margin: 0 0 10px;
}

.page-faq .device-card p {
  margin: 0 0 14px;
  font-size: 14.4px;
  line-height: 1.78;
  color: var(--ink-700);
}

.page-faq .device-card--mobile p {
  color: rgba(247, 242, 231, 0.9);
}

.page-faq .device-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 9px;
}

.page-faq .device-list li {
  position: relative;
  padding-left: 16px;
  font-size: 13.8px;
  line-height: 1.72;
  color: var(--ink-700);
}

.page-faq .device-card--mobile .device-list li {
  color: rgba(247, 242, 231, 0.88);
}

.page-faq .device-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 9px;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--copper-500);
}

.page-faq .device-card--mobile .device-list li::before {
  background: var(--amber-400);
}

/* 问答 */
.page-faq .qa-group {
  margin-top: 28px;
}

.page-faq .qa-group > h3 {
  font-family: var(--font-display);
  font-size: 1.12rem;
  font-weight: 700;
  margin: 0 0 10px;
  padding-left: 12px;
  border-left: 3px solid var(--cinnabar-600);
  line-height: 1.5;
}

.page-faq .qa {
  border-bottom: 1px solid var(--line-200);
}

.page-faq .qa summary {
  position: relative;
  cursor: pointer;
  list-style: none;
  padding: 15px 34px 15px 0;
  font-size: 15px;
  font-weight: 600;
  line-height: 1.6;
  color: var(--ink-900);
}

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

.page-faq .qa summary::after {
  content: "";
  position: absolute;
  right: 8px;
  top: 50%;
  width: 8px;
  height: 8px;
  border-right: 2px solid var(--cinnabar-600);
  border-bottom: 2px solid var(--cinnabar-600);
  transform: translateY(-70%) rotate(45deg);
  transition: transform 200ms var(--ease-spring);
}

.page-faq .qa[open] summary::after {
  transform: translateY(-30%) rotate(-135deg);
}

.page-faq .qa summary:hover {
  color: var(--cinnabar-600);
}

.page-faq .qa summary:focus-visible {
  outline: 2px solid var(--cinnabar-600);
  outline-offset: 2px;
}

.page-faq .qa p {
  margin: 0 0 18px;
  max-width: 42em;
  font-size: 14.4px;
  line-height: 1.82;
  color: var(--ink-700);
}

/* 求助 */
.page-faq .help-box {
  margin-top: 24px;
  background: var(--rice-100);
  border-radius: var(--radius-lg);
  padding: 22px 20px;
  border: 1px dashed var(--copper-500);
}

.page-faq .help-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 12px;
}

.page-faq .help-list li {
  font-size: 14.4px;
  line-height: 1.75;
  color: var(--ink-700);
}

.page-faq .help-list__key {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.08em;
  color: var(--rice-050);
  background: var(--ink-700);
  border-radius: var(--radius-pill);
  padding: 3px 10px;
  margin-right: 8px;
}

.page-faq .help-actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px 20px;
  margin-top: 20px;
}

.page-faq .help-actions .btn {
  display: inline-block;
}

.page-faq .help-actions .link-more {
  font-size: 13.5px;
  color: var(--ink-700);
  text-decoration: none;
  border-bottom: 1px solid var(--copper-500);
  padding-bottom: 2px;
}

.page-faq .help-actions .link-more:hover,
.page-faq .help-actions .link-more:focus-visible {
  color: var(--cinnabar-600);
  border-bottom-color: var(--cinnabar-600);
}

.page-faq .help-note {
  margin: 16px 0 0;
  font-size: 12.8px;
  line-height: 1.7;
  color: var(--celadon-500);
}

/* 中等屏 */
@media (min-width: 720px) {
  .page-faq .faq-hero {
    padding: 48px 0 56px;
  }

  .page-faq .columns-list {
    grid-template-columns: 1fr 1fr;
    gap: 18px 30px;
  }

  .page-faq .misreads {
    grid-template-columns: 1fr 1fr;
    gap: 18px 26px;
  }

  .page-faq .device-grid {
    grid-template-columns: 1fr 1fr;
    gap: 18px;
  }

  .page-faq .steps {
    gap: 18px;
  }

  .page-faq .step {
    grid-template-columns: 64px minmax(0, 1fr);
    gap: 20px;
    padding: 26px 24px;
  }

  .page-faq .step__num {
    font-size: 34px;
  }

  .page-faq .steps::before {
    left: 55px;
  }

  .page-faq .ways {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 16px;
  }
}

/* 宽屏双栏 */
@media (min-width: 1024px) {
  .page-faq .tutorial-shell {
    grid-template-columns: var(--faq-index-w) minmax(0, 1fr);
    gap: 56px;
  }

  .page-faq .guide-index {
    position: sticky;
    top: calc(var(--header-h) + 28px);
    align-self: start;
  }

  .page-faq .faq-hero h1 {
    max-width: 12em;
  }

  .page-faq .faq-board {
    padding: 26px 0 18px;
  }

  .page-faq .faq-board__head,
  .page-faq .faq-board__hint {
    padding-left: 26px;
    padding-right: 26px;
  }

  .page-faq .faq-board__hint {
    margin-left: 26px;
    margin-right: 26px;
    padding-left: 0;
    padding-right: 0;
  }

  .page-faq .cols-table th:first-child,
  .page-faq .cols-table td:first-child {
    padding-left: 26px;
  }

  .page-faq .help-box {
    padding: 28px 26px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .guide-index__item a,
  .page-faq .qa summary::after {
    transition: none;
  }
}
<<<END>>>