.page-faq {
  --faq-max: 940px;
  padding-bottom: 88px;
}

.page-faq .breadcrumb {
  margin-top: 32px;
}

/* 首屏 */
.page-faq .faq-hero {
  max-width: var(--faq-max);
  padding-top: 36px;
}

.page-faq .faq-hero__plate {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin: 0;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--ink-dim);
}

.page-faq .faq-hero__plate b {
  display: inline-block;
  padding: 2px 7px;
  font-weight: 600;
  color: var(--deep);
  background: var(--cyan);
}

.page-faq .faq-hero h1 {
  margin: 20px 0 0;
  font-family: var(--font-serif);
  font-size: clamp(34px, 5.4vw, 58px);
  font-weight: 700;
  line-height: 1.1;
  letter-spacing: 0.02em;
  color: var(--ink);
}

.page-faq .faq-hero__lead {
  max-width: 62ch;
  margin: 20px 0 0;
  font-size: 16px;
  line-height: 1.85;
  color: var(--ink-dim);
}

.page-faq .faq-jump {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 28px;
  padding-bottom: 30px;
  border-bottom: 1px solid var(--line);
}

.page-faq .faq-jump a {
  padding: 7px 13px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--ink-dim);
  text-decoration: none;
  border: 1px solid var(--line);
  background: var(--panel);
  transition: color 0.2s var(--ease), background 0.2s var(--ease), border-color 0.2s var(--ease);
}

.page-faq .faq-jump a:hover,
.page-faq .faq-jump a:focus-visible {
  color: var(--deep);
  background: var(--cyan);
  border-color: var(--cyan);
}

/* 分组 */
.page-faq .faq-body {
  max-width: var(--faq-max);
}

.page-faq .faq-group {
  --accent: var(--cyan);
  position: relative;
  margin-top: 62px;
  padding-top: 30px;
  border-top: 1px solid var(--line);
}

.page-faq .faq-group::before {
  content: "";
  position: absolute;
  top: -1px;
  left: 0;
  width: 64px;
  height: 2px;
  background: var(--accent);
}

.page-faq .faq-group--cyan { --accent: var(--cyan); }
.page-faq .faq-group--magenta { --accent: var(--magenta); }
.page-faq .faq-group--yellow { --accent: var(--yellow); }
.page-faq .faq-group--orange { --accent: var(--orange); }

.page-faq .faq-group__head {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 14px;
}

.page-faq .faq-group__code {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--accent);
}

.page-faq .faq-group__title {
  margin: 0;
  font-family: var(--font-sans);
  font-size: clamp(21px, 2.6vw, 27px);
  font-weight: 800;
  font-stretch: 82%;
  line-height: 1.25;
  letter-spacing: 0.01em;
  color: var(--ink);
}

.page-faq .faq-group__note {
  max-width: 58ch;
  margin: 12px 0 0;
  font-size: 14px;
  line-height: 1.75;
  color: var(--ink-dim);
}

/* 问答列表 */
.page-faq .faq-list {
  margin-top: 26px;
  border-top: 1px solid var(--line);
}

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

.page-faq .faq-item > summary {
  display: grid;
  grid-template-columns: 46px minmax(0, 1fr) 26px;
  gap: 14px;
  align-items: start;
  margin: 0 -12px;
  padding: 20px 12px;
  list-style: none;
  cursor: pointer;
  transition: background 0.2s var(--ease);
}

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

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

.page-faq .faq-item > summary:hover,
.page-faq .faq-item > summary:focus-visible {
  background: rgba(44, 232, 224, 0.05);
}

.page-faq .faq-item__code {
  padding-top: 5px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--ink-dim);
  transition: color 0.2s var(--ease);
}

.page-faq .faq-item[open] .faq-item__code {
  color: var(--accent);
}

.page-faq .faq-item__q {
  font-family: var(--font-sans);
  font-size: clamp(17px, 2.1vw, 20px);
  font-weight: 800;
  font-stretch: 82%;
  line-height: 1.5;
  letter-spacing: 0.01em;
  color: var(--ink);
}

.page-faq .faq-item__mark {
  position: relative;
  justify-self: end;
  width: 24px;
  height: 24px;
  margin-top: 3px;
  border: 1px solid var(--line);
  color: var(--accent);
  transition: border-color 0.2s var(--ease);
}

.page-faq .faq-item > summary:hover .faq-item__mark,
.page-faq .faq-item[open] .faq-item__mark {
  border-color: var(--accent);
}

.page-faq .faq-item__mark::before,
.page-faq .faq-item__mark::after {
  content: "";
  position: absolute;
  top: 50%;
  left: 50%;
  background: currentColor;
  transform: translate(-50%, -50%);
  transition: transform 0.22s var(--ease), opacity 0.22s var(--ease);
}

.page-faq .faq-item__mark::before {
  width: 10px;
  height: 1px;
}

.page-faq .faq-item__mark::after {
  width: 1px;
  height: 10px;
}

.page-faq .faq-item[open] .faq-item__mark::after {
  transform: translate(-50%, -50%) scaleY(0);
  opacity: 0;
}

.page-faq .faq-item__a {
  display: grid;
  gap: 12px;
  padding: 2px 46px 26px 60px;
}

.page-faq .faq-item__a p {
  max-width: 64ch;
  margin: 0;
  font-size: 15px;
  line-height: 1.85;
  color: var(--ink-dim);
}

.page-faq .faq-item__a a {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(44, 232, 224, 0.35);
}

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

/* 插图 */
.page-faq .faq-figure {
  margin: 30px 0 0;
}

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

.page-faq .faq-figure figcaption {
  margin-top: 10px;
  font-family: var(--font-mono);
  font-size: 12px;
  line-height: 1.7;
  letter-spacing: 0.04em;
  color: var(--ink-dim);
}

.page-faq .faq-figure--portrait {
  max-width: 340px;
  margin: 30px auto 0;
}

/* 引导块 */
.page-faq .faq-cta {
  margin-top: 26px;
  padding: 28px 24px 26px;
}

.page-faq .faq-cta__lead {
  max-width: 62ch;
  margin: 0;
  font-size: 15px;
  line-height: 1.85;
  color: var(--ink-dim);
}

.page-faq .faq-cta__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 22px;
}

/* 平板与窄屏 */
@media (max-width: 760px) {
  .page-faq {
    padding-bottom: 64px;
  }

  .page-faq .breadcrumb {
    margin-top: 22px;
  }

  .page-faq .faq-hero {
    padding-top: 26px;
  }

  .page-faq .faq-hero__lead {
    font-size: 15px;
    line-height: 1.8;
  }

  .page-faq .faq-group {
    margin-top: 48px;
    padding-top: 24px;
  }

  .page-faq .faq-group::before {
    width: 48px;
  }

  .page-faq .faq-item > summary {
    grid-template-columns: 38px minmax(0, 1fr) 22px;
    gap: 10px;
    margin: 0;
    padding: 18px 0;
  }

  .page-faq .faq-item__code {
    padding-top: 4px;
    font-size: 11px;
  }

  .page-faq .faq-item__mark {
    width: 22px;
    height: 22px;
  }

  .page-faq .faq-item__a {
    padding: 0 0 22px 48px;
  }

  .page-faq .faq-figure--portrait {
    max-width: 300px;
  }

  .page-faq .faq-cta {
    padding: 22px 18px 22px;
  }

  .page-faq .faq-cta__actions .btn {
    flex: 1 1 160px;
    text-align: center;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-item__mark::before,
  .page-faq .faq-item__mark::after,
  .page-faq .faq-item > summary,
  .page-faq .faq-item__code,
  .page-faq .faq-jump a {
    transition: none;
  }
}