.page-faq {
  --faq-line: var(--hairline-ink);
  --faq-ink-soft: rgba(252, 250, 245, 0.8);
  --faq-ink-line: rgba(252, 250, 245, 0.16);
  --faq-body-size: 0.9375rem;
  overflow-x: clip;
  background: var(--paper-050);
  color: var(--ink-900);
}

/* ---------- 首屏 ---------- */

.page-faq .faq-hero {
  padding-top: clamp(28px, 5vw, 64px);
}

.page-faq .faq-hero .breadcrumb {
  margin-bottom: clamp(20px, 3vw, 36px);
}

.page-faq .faq-hero__head {
  max-width: 46rem;
}

.page-faq .faq-hero__head .t-h1 {
  max-width: 20ch;
  margin: 12px 0 18px;
}

.page-faq .faq-hero__head .lede {
  max-width: 36em;
}

.page-faq .faq-jump {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: clamp(24px, 3.5vw, 40px);
}

.page-faq .faq-jump__item {
  display: inline-flex;
  align-items: baseline;
  gap: 8px;
  padding: 9px 18px;
  border: 1px solid var(--hairline-gold);
  border-radius: var(--radius-pill);
  background: var(--porcelain-000);
  color: var(--ink-900);
  font-family: var(--font-title);
  font-size: 0.9375rem;
  font-weight: 700;
  letter-spacing: -0.01em;
  text-decoration: none;
  transition: border-color var(--dur-mid) var(--ease), background-color var(--dur-mid) var(--ease);
}

.page-faq .faq-jump__item:hover,
.page-faq .faq-jump__item:focus-visible {
  border-color: var(--gold-600);
}

.page-faq .faq-jump__no {
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  letter-spacing: 0.08em;
  color: var(--blue-700);
}

/* ---------- 分区标题 ---------- */

.page-faq .faq-head {
  margin-top: clamp(40px, 6vw, 72px);
  margin-bottom: clamp(20px, 3vw, 32px);
}

.page-faq .faq-lede {
  max-width: 34em;
  margin-bottom: clamp(16px, 2.5vw, 24px);
}

/* ---------- 三分钟上手 ---------- */

.page-faq .path-list {
  list-style: none;
  margin: 0;
  padding: 0;
  border-top: 1px solid var(--faq-line);
  border-bottom: 1px solid var(--faq-line);
  background: var(--faq-line);
  display: grid;
  gap: 1px;
}

.page-faq .path-item {
  display: grid;
  grid-template-columns: 3.25rem minmax(0, 1fr);
  column-gap: 14px;
  row-gap: 6px;
  padding: 18px 4px;
  background: var(--paper-050);
}

.page-faq .path-no {
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  letter-spacing: 0.08em;
  color: var(--blue-700);
  padding-top: 0.15em;
}

.page-faq .path-label {
  font-family: var(--font-title);
  font-weight: 800;
  font-size: 1.0625rem;
  letter-spacing: -0.02em;
  line-height: 1.4;
}

.page-faq .path-goal {
  grid-column: 2;
  font-size: var(--faq-body-size);
  line-height: 1.9;
  color: var(--muted-500);
}

.page-faq .path-goal a {
  color: var(--blue-700);
  font-weight: 500;
  text-underline-offset: 3px;
}

/* ---------- 编号读法 ---------- */

.page-faq .faq-figure {
  margin: 0 0 clamp(28px, 4vw, 48px);
  border-radius: var(--radius-lg);
  overflow: hidden;
}

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

.page-faq .no-anatomy {
  padding: clamp(20px, 3vw, 36px);
  border-radius: var(--radius-lg);
  background: var(--paper-200);
  border-left: 4px solid var(--blue-700);
}

.page-faq .no-anatomy__label {
  margin: 0;
}

.page-faq .no-anatomy__code {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  margin: 10px 0 22px;
  font-family: var(--font-mono);
  font-size: clamp(1.75rem, 7vw, 3rem);
  font-weight: 700;
  line-height: 1.1;
  letter-spacing: 0.04em;
  word-break: break-word;
}

.page-faq .no-sep {
  color: var(--muted-500);
}

.page-faq .no-part--prefix {
  color: var(--ink-900);
}

.page-faq .no-part--chapter {
  color: var(--blue-700);
}

.page-faq .no-part--item {
  color: var(--gold-600);
}

.page-faq .no-legend {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 12px;
}

.page-faq .no-legend li {
  display: grid;
  grid-template-columns: minmax(0, 4.5rem) minmax(0, 1fr);
  gap: 12px;
  font-size: var(--faq-body-size);
  line-height: 1.85;
  color: var(--ink-700);
}

.page-faq .no-legend__key {
  font-family: var(--font-mono);
  font-size: 0.9375rem;
  font-weight: 700;
  letter-spacing: 0.06em;
}

/* ---------- 折叠问答 ---------- */

.page-faq .disclosure-list {
  margin-top: clamp(24px, 3.5vw, 40px);
}

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

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

.page-faq .qa > summary {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  padding: 18px 8px 18px 12px;
  border-left: 3px solid transparent;
  list-style: none;
  cursor: pointer;
  font-family: var(--font-title);
  font-size: 1.0625rem;
  font-weight: 800;
  line-height: 1.55;
  letter-spacing: -0.015em;
  color: var(--ink-900);
  transition: border-color var(--dur-mid) var(--ease), background-color var(--dur-mid) var(--ease);
}

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

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

.page-faq .qa > summary:hover {
  background: rgba(180, 135, 44, 0.06);
}

.page-faq .qa[open] > summary {
  border-left-color: var(--gold-600);
}

.page-faq .qa-no {
  flex: none;
  min-width: 2rem;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 500;
  letter-spacing: 0.08em;
  color: var(--blue-700);
  padding-top: 0.35em;
}

.page-faq .disclosure-body {
  padding: 0 8px 22px 15px;
}

.page-faq .disclosure-body p {
  margin: 0;
  max-width: 40em;
  font-size: var(--faq-body-size);
  line-height: 1.9;
}

.page-faq .disclosure-body a {
  color: var(--blue-700);
  font-weight: 500;
  text-underline-offset: 3px;
}

/* ---------- 记录核对 ---------- */

.page-faq .step-cols {
  display: grid;
  gap: clamp(24px, 3.5vw, 40px);
  align-items: start;
}

.page-faq .step-cols__media {
  margin: 0;
  aspect-ratio: 4 / 3;
  border-radius: var(--radius-lg);
  overflow: hidden;
}

.page-faq .step-cols__body {
  min-width: 0;
}

.page-faq .record-figure {
  display: flex;
  align-items: baseline;
  gap: 0.5rem;
  margin: 0;
  font-family: var(--font-mono);
  color: var(--ink-900);
}

.page-faq .record-figure .stat-figure {
  font-family: var(--font-mono);
  font-size: clamp(3.25rem, 13vw, 6.5rem);
  font-weight: 700;
  line-height: 1;
  letter-spacing: -0.04em;
}

.page-faq .record-figure .stat-unit {
  font-family: var(--font-title);
  font-size: 1.125rem;
  font-weight: 800;
  color: var(--muted-500);
}

.page-faq .step-cols__body > .t-note {
  margin: 12px 0 24px;
  max-width: 34em;
}

.page-faq .step-list {
  counter-reset: step;
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 18px;
}

.page-faq .step-list > li {
  counter-increment: step;
  position: relative;
  padding-left: 36px;
  font-size: var(--faq-body-size);
  line-height: 1.9;
}

.page-faq .step-list > li::before {
  content: counter(step);
  position: absolute;
  left: 0;
  top: 0.35em;
  width: 22px;
  height: 22px;
  display: grid;
  place-items: center;
  border-radius: 50%;
  background: var(--gold-300);
  color: var(--ink-900);
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  font-weight: 700;
}

.page-faq .step-cols__foot {
  margin: 26px 0 0;
  padding-left: 36px;
}

/* ---------- 版本 ---------- */

.page-faq .zone--ink {
  color: var(--porcelain-000);
}

.page-faq .zone--ink .t-h2 {
  color: var(--porcelain-000);
}

.page-faq .zone--ink .eyebrow {
  color: var(--gold-300);
}

.page-faq .zone--ink .qa {
  border-top-color: var(--faq-ink-line);
}

.page-faq .zone--ink .qa:last-child {
  border-bottom-color: var(--faq-ink-line);
}

.page-faq .zone--ink .qa > summary {
  color: var(--porcelain-000);
}

.page-faq .zone--ink .qa > summary:hover {
  background: rgba(226, 192, 121, 0.08);
}

.page-faq .zone--ink .qa-no {
  color: var(--blue-200);
}

.page-faq .zone--ink .disclosure-body p {
  color: var(--faq-ink-soft);
}

.page-faq .zone--ink .disclosure-body a {
  color: var(--blue-200);
}

.page-faq .version-display {
  margin: clamp(12px, 2vw, 20px) 0 10px;
  font-family: var(--font-mono);
  font-size: clamp(1.6rem, 7vw, 3.75rem);
  font-weight: 700;
  line-height: 1.15;
  letter-spacing: 0.02em;
  color: var(--porcelain-000);
  word-break: break-word;
}

.page-faq .version-display span {
  color: var(--gold-300);
}

.page-faq .version-note {
  margin: 0;
  max-width: 34em;
  font-size: var(--faq-body-size);
  line-height: 1.9;
  color: rgba(252, 250, 245, 0.72);
}

/* ---------- 停顿行 ---------- */

.page-faq .pause-line {
  margin: clamp(36px, 5vw, 60px) 0 0;
  padding-left: 18px;
  border-left: 2px solid var(--hairline-gold);
  max-width: 34em;
  font-family: var(--font-title);
  font-size: clamp(0.9375rem, 1.6vw, 1.0625rem);
  font-weight: 700;
  line-height: 1.9;
  letter-spacing: 0.01em;
  color: var(--muted-500);
}

/* ---------- 收尾 ---------- */

.page-faq .faq-outro {
  margin-top: clamp(28px, 4vw, 44px);
  padding-top: clamp(20px, 3vw, 28px);
  border-top: 1px solid var(--hairline-gold);
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px;
}

.page-faq .faq-outro__note {
  flex: 1 1 18rem;
  margin: 0;
  min-width: 0;
  font-size: 0.875rem;
  line-height: 1.9;
  color: var(--muted-500);
}

/* ---------- 返回顶部 ---------- */

.page-faq .faq-top {
  position: fixed;
  right: clamp(14px, 3vw, 36px);
  bottom: clamp(14px, 3vw, 30px);
  z-index: 20;
  display: inline-flex;
  align-items: center;
  padding: 10px 16px;
  border: 1px solid var(--hairline-gold);
  border-radius: var(--radius-pill);
  background: var(--ink-900);
  color: var(--porcelain-000);
  font-family: var(--font-title);
  font-size: 0.8125rem;
  font-weight: 700;
  letter-spacing: 0.01em;
  text-decoration: none;
  transition: background-color var(--dur-mid) var(--ease), color var(--dur-mid) var(--ease);
}

.page-faq .faq-top:hover,
.page-faq .faq-top:focus-visible {
  background: var(--gold-600);
  color: var(--ink-900);
}

/* ---------- 锚点目标 ---------- */

.page-faq .faq-block {
  transition: background-color var(--dur-slow) var(--ease);
}

.page-faq .faq-block:not(.zone--ink):target {
  background-color: var(--paper-200);
}

/* ---------- 响应式 ---------- */

@media (min-width: 900px) {
  .page-faq .step-cols {
    grid-template-columns: minmax(0, 4fr) minmax(0, 7fr);
    column-gap: clamp(32px, 5vw, 72px);
  }

  .page-faq .path-item {
    grid-template-columns: 3.25rem 9rem minmax(0, 1fr);
    padding: 20px 6px;
  }

  .page-faq .path-goal {
    grid-column: 3;
    padding-top: 0.2em;
  }
}

@media (max-width: 640px) {
  .page-faq .no-legend li {
    grid-template-columns: minmax(0, 1fr);
    gap: 4px;
  }

  .page-faq .no-legend__key {
    display: inline-block;
  }

  .page-faq .qa > summary {
    font-size: 1rem;
    gap: 10px;
  }

  .page-faq .no-anatomy__code {
    font-size: 1.75rem;
  }

  .page-faq .faq-top {
    padding: 8px 13px;
    font-size: 0.75rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .qa > summary,
  .page-faq .faq-jump__item,
  .page-faq .faq-top,
  .page-faq .faq-block {
    transition: none;
  }
}