.page-faq {
  --faq-gap: clamp(16px, 3vw, 28px);
  --faq-rule: 1px solid var(--ink-700);
  padding: clamp(20px, 4vw, 44px) 0 clamp(48px, 8vw, 96px);
}

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

.page-faq a:focus-visible,
.page-faq summary:focus-visible {
  outline: 2px solid var(--signal);
  outline-offset: 3px;
}

.page-faq .faq-hero {
  padding-bottom: var(--faq-gap);
  border-bottom: var(--faq-rule);
}

.page-faq .faq-hero .display-1 {
  margin: 10px 0 0;
  max-width: 17ch;
  line-height: 0.98;
  letter-spacing: -0.01em;
}

.page-faq .faq-hero .lead {
  margin: 16px 0 0;
  max-width: 40em;
  color: var(--steel-400);
  font-size: 16px;
  line-height: 1.75;
}

.page-faq .faq-stats {
  list-style: none;
  margin: 24px 0 0;
  padding: 0;
  display: grid;
  gap: 14px 18px;
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.page-faq .faq-stats li {
  display: grid;
  gap: 2px;
  padding-top: 10px;
  border-top: 1px solid var(--ink-700);
}

.page-faq .faq-stats .mono {
  color: var(--signal);
  font-size: clamp(19px, 2.4vw, 24px);
  line-height: 1.1;
}

.page-faq .stat-label {
  font-size: 12.5px;
  color: var(--steel-400);
  line-height: 1.5;
}

/* 高频三问：出版米插页 */
.page-faq .faq-hot {
  margin-top: clamp(24px, 4vw, 46px);
  padding: clamp(20px, 3.4vw, 38px);
  background: var(--parchment);
  color: var(--ink-900);
  clip-path: polygon(0 0, calc(100% - 30px) 0, 100% 30px, 100% 100%, 0 100%);
}

.page-faq .faq-hot h2 {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(20px, 2.6vw, 26px);
  font-weight: 700;
  letter-spacing: 0.02em;
  color: var(--ink-900);
}

.page-faq .hot-note {
  margin: 6px 0 0;
  font-size: 13.5px;
  color: var(--ink-700);
}

.page-faq .hot-grid {
  display: grid;
  gap: 20px;
  margin-top: 20px;
}

.page-faq .hot-item h3 {
  margin: 0 0 8px;
  font-size: 17px;
  line-height: 1.4;
  font-weight: 700;
  color: var(--ink-900);
}

.page-faq .hot-jump {
  display: inline-block;
  margin-top: 10px;
  color: var(--ember);
  font-size: 13.5px;
  font-weight: 700;
  text-decoration: none;
  border-bottom: 1px solid currentColor;
}

.page-faq .hot-jump:hover {
  color: var(--ink-900);
}

/* 步骤序号 */
.page-faq .steps {
  counter-reset: step;
  list-style: none;
  margin: 10px 0 0;
  padding: 0;
  display: grid;
  gap: 9px;
}

.page-faq .steps li {
  counter-increment: step;
  display: grid;
  grid-template-columns: 24px minmax(0, 1fr);
  gap: 10px;
  align-items: start;
  font-size: 14.5px;
  line-height: 1.65;
  color: var(--steel-400);
}

.page-faq .steps li::before {
  content: counter(step);
  display: grid;
  place-items: center;
  width: 24px;
  height: 24px;
  border: 1px solid var(--ink-700);
  border-radius: 50%;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.02em;
  color: var(--signal);
}

.page-faq .faq-hot .steps li {
  color: rgba(6, 12, 22, 0.78);
}

.page-faq .faq-hot .steps li::before {
  border-color: rgba(6, 12, 22, 0.42);
  color: var(--ink-900);
}

.page-faq .steps--loose {
  gap: 12px;
  margin-top: 16px;
}

.page-faq .steps--loose li {
  font-size: 15px;
  color: var(--mist-100);
}

/* 主布局：目录 + 问答 */
.page-faq .faq-layout {
  display: grid;
  gap: var(--faq-gap);
  margin-top: clamp(28px, 5vw, 56px);
}

.page-faq .faq-toc {
  padding-top: 12px;
  border-top: 2px solid var(--signal);
}

.page-faq .toc-label {
  margin: 0 0 10px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--steel-400);
}

.page-faq .toc-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 1px;
}

.page-faq .toc-list a {
  display: flex;
  align-items: baseline;
  gap: 10px;
  padding: 9px 8px 9px 0;
  border-bottom: 1px solid var(--ink-800);
  color: var(--mist-100);
  font-size: 14.5px;
  text-decoration: none;
  transition: color var(--dur) var(--ease), padding-left var(--dur) var(--ease);
}

.page-faq .toc-list a:hover,
.page-faq .toc-list a:focus-visible {
  color: var(--signal);
  padding-left: 6px;
}

.page-faq .toc-num {
  font-size: 11px;
  color: var(--teal-700);
}

.page-faq .toc-help {
  margin: 14px 0 0;
  font-size: 13px;
  line-height: 1.7;
  color: var(--steel-400);
}

.page-faq .faq-group + .faq-group {
  margin-top: clamp(34px, 5vw, 60px);
}

.page-faq .faq-group > h2 {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(23px, 3.4vw, 33px);
  font-weight: 700;
  line-height: 1.18;
  letter-spacing: 0.005em;
  color: var(--mist-100);
}

.page-faq .group-lead {
  max-width: 38em;
  margin: 10px 0 18px;
  font-size: 15px;
  line-height: 1.7;
  color: var(--steel-400);
}

/* 媒体框 */
.page-faq .media-frame {
  margin: 0 0 22px;
}

.page-faq .media-frame img {
  width: 100%;
  object-fit: cover;
  background: var(--ink-800);
}

.page-faq .media-frame__caption {
  margin-top: 8px;
  font-size: 12.5px;
  line-height: 1.6;
  color: var(--steel-400);
  text-align: right;
}

/* 状态色标 */
.page-faq .legend {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 20px;
  margin: 0 0 18px;
  padding: 10px 14px;
  background: var(--ink-800);
  border-left: 3px solid var(--signal);
}

.page-faq .legend-item {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.02em;
  color: var(--mist-100);
}

.page-faq .legend-dot {
  width: 9px;
  height: 9px;
  border-radius: 50%;
  display: inline-block;
}

.page-faq .legend-dot--on {
  background: var(--signal);
}

.page-faq .legend-dot--run {
  background: var(--amber);
}

.page-faq .legend-dot--idle {
  background: var(--steel-400);
}

/* 问答条目 */
.page-faq .qa-list {
  display: grid;
}

.page-faq details {
  border-bottom: 1px solid var(--ink-800);
  border-left: 2px solid transparent;
  padding: 2px 0 2px 12px;
  transition: border-color var(--dur) var(--ease), background-color var(--dur) var(--ease);
}

.page-faq details[open] {
  border-left-color: var(--signal);
  background: var(--ink-800);
}

.page-faq summary {
  position: relative;
  display: flex;
  gap: 10px;
  align-items: baseline;
  padding: 14px 12px 14px 0;
  cursor: pointer;
  list-style: none;
  font-size: 16px;
  font-weight: 700;
  line-height: 1.5;
  color: var(--mist-100);
}

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

.page-faq summary::before {
  content: "+";
  flex: none;
  font-family: var(--font-mono);
  font-size: 15px;
  color: var(--signal);
}

.page-faq details[open] summary::before {
  content: "−";
}

.page-faq summary:hover {
  color: var(--signal);
}

.page-faq .qa-body {
  padding: 0 12px 16px 25px;
  font-size: 14.5px;
  line-height: 1.75;
  color: var(--steel-400);
}

.page-faq .qa-body p {
  margin: 8px 0 0;
}

.page-faq .qa-body p:first-child {
  margin-top: 0;
}

.page-faq .link-track {
  color: var(--signal);
}

/* 收尾段 */
.page-faq .faq-group--help {
  padding: clamp(20px, 3.4vw, 34px);
  background: var(--ink-800);
  border-top: 2px solid var(--track);
}

.page-faq .help-note {
  margin: 14px 0 18px;
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: 0.02em;
  color: var(--amber);
}

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

.page-faq .faq-group--help .group-lead {
  margin-bottom: 0;
}

@media (min-width: 620px) {
  .page-faq .faq-stats {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

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

  .page-faq .hot-item + .hot-item {
    margin-left: 20px;
    padding-left: 20px;
    border-left: 1px solid rgba(6, 12, 22, 0.18);
  }
}

@media (min-width: 920px) {
  .page-faq .faq-layout {
    grid-template-columns: 220px minmax(0, 1fr);
    gap: clamp(28px, 4vw, 64px);
    align-items: start;
  }

  .page-faq .faq-toc {
    position: sticky;
    top: 20px;
  }

  .page-faq summary {
    font-size: 17px;
  }

  .page-faq .qa-body {
    max-width: 40em;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .toc-list a,
  .page-faq details {
    transition: none;
  }
}
<<<END>>>