.page-faq {
  --faq-read: 46rem;
  padding-bottom: 0;
}

.page-faq .db-breadcrumb {
  padding-top: 20px;
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  display: grid;
  gap: 28px;
  padding: 24px 0 34px;
  border-bottom: 1px solid var(--db-line);
}

.page-faq .faq-hero h1 {
  margin: 10px 0 0;
  font-family: var(--db-serif);
  font-weight: 600;
  font-size: 30px;
  line-height: 1.34;
  letter-spacing: .02em;
  color: var(--db-ink);
}

.page-faq .faq-lead {
  margin: 14px 0 0;
  max-width: var(--faq-read);
  font-size: 16px;
  line-height: 1.8;
  color: var(--db-body-text);
}

.page-faq .faq-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 22px;
}

.page-faq .faq-hero__index {
  display: flex;
  flex-direction: column;
  border: 1px solid var(--db-line);
  background: var(--db-cream);
  box-shadow: var(--db-shadow);
}

.page-faq .faq-index__item {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 4px 12px;
  align-items: baseline;
  padding: 14px 16px;
  border-bottom: 1px solid var(--db-line);
  border-left: 3px solid transparent;
  text-decoration: none;
  transition: border-color .2s ease, background-color .2s ease;
}

.page-faq .faq-index__item:last-child {
  border-bottom: 0;
}

.page-faq .faq-index__item:hover,
.page-faq .faq-index__item:focus-visible {
  border-left-color: var(--db-copper);
  background: var(--db-paper);
}

.page-faq .faq-index__no {
  font-family: var(--db-mono);
  font-size: 12px;
  letter-spacing: .08em;
  color: var(--db-copper-deep);
}

.page-faq .faq-index__title {
  font-family: var(--db-serif);
  font-size: 16px;
  color: var(--db-ink);
}

.page-faq .faq-index__meta {
  grid-column: 1 / -1;
  font-family: var(--db-mono);
  font-size: 12px;
  color: var(--db-rock);
}

/* ---------- 图片 ---------- */
.page-faq .faq-figure {
  margin: 28px 0 0;
}

.page-faq .faq-figure .db-figure__caption {
  margin-top: 10px;
  font-size: 13px;
  line-height: 1.7;
  color: var(--db-rock);
}

/* ---------- 清单主结构 ---------- */
.page-faq .faq-track {
  padding: 34px 0 26px;
  border-bottom: 1px solid var(--db-line);
}

.page-faq .faq-track__head {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 4px 14px;
  align-items: baseline;
}

.page-faq .faq-track__no {
  font-family: var(--db-mono);
  font-size: 13px;
  letter-spacing: .12em;
  color: var(--db-copper);
  padding-top: 4px;
}

.page-faq .faq-track__head h2 {
  margin: 0;
  font-family: var(--db-serif);
  font-weight: 600;
  font-size: 22px;
  line-height: 1.4;
  letter-spacing: .02em;
  color: var(--db-ink);
}

.page-faq .faq-track__meta {
  grid-column: 2;
  font-family: var(--db-mono);
  font-size: 12px;
  color: var(--db-rock);
}

.page-faq .faq-steps {
  counter-reset: faqstep;
  margin: 22px 0 0;
  padding: 0;
  list-style: none;
  max-width: 58rem;
}

.page-faq .faq-step {
  position: relative;
  padding: 0 0 14px 44px;
  counter-increment: faqstep;
}

.page-faq .faq-step::before {
  content: "";
  position: absolute;
  left: 15px;
  top: 44px;
  bottom: -14px;
  width: 1px;
  background: var(--db-line);
}

.page-faq .faq-step:last-child {
  padding-bottom: 0;
}

.page-faq .faq-step:last-child::before {
  content: none;
}

.page-faq .faq-step__box {
  position: relative;
  display: block;
  padding: 14px 16px;
  border: 1px solid var(--db-line);
  background: var(--db-cream);
  cursor: pointer;
  transition: background-color .2s ease, border-color .2s ease;
}

.page-faq .faq-step__input {
  position: absolute;
  width: 1px;
  height: 1px;
  margin: 0;
  opacity: 0;
  pointer-events: none;
}

.page-faq .faq-step__mark {
  position: absolute;
  left: -44px;
  top: 14px;
  width: 30px;
  height: 30px;
  display: grid;
  place-items: center;
  border: 1px solid var(--db-line);
  background: var(--db-paper);
  font-family: var(--db-mono);
  font-size: 13px;
  color: var(--db-rock);
  transition: background-color .18s ease, border-color .18s ease, color .18s ease;
}

.page-faq .faq-step__mark::before {
  content: counter(faqstep, decimal-leading-zero);
}

.page-faq .faq-step__input:focus-visible + .faq-step__mark {
  outline: 2px solid var(--db-copper);
  outline-offset: 2px;
}

.page-faq .faq-step__content {
  display: block;
}

.page-faq .faq-step__title {
  display: block;
  font-family: var(--db-serif);
  font-weight: 600;
  font-size: 17px;
  line-height: 1.5;
  letter-spacing: .01em;
  color: var(--db-ink);
  transition: color .18s ease;
}

.page-faq .faq-step__desc {
  display: block;
  margin-top: 6px;
  font-size: 15px;
  line-height: 1.78;
  color: var(--db-body-text);
}

.page-faq .faq-step__tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-top: 10px;
}

.page-faq .faq-chip {
  display: inline-block;
  padding: 3px 8px;
  border: 1px solid var(--db-line);
  background: var(--db-paper);
  font-family: var(--db-mono);
  font-size: 12px;
  line-height: 1.5;
  color: var(--db-rock);
}

.page-faq .faq-chip--time {
  border-color: rgba(169, 118, 47, .42);
  color: var(--db-copper-deep);
}

/* 勾选后整行转为青瓷绿 */
.page-faq .faq-step:has(.faq-step__input:checked) .faq-step__box {
  border-color: var(--db-celadon-light);
  background: rgba(91, 122, 107, .1);
}

.page-faq .faq-step:has(.faq-step__input:checked) .faq-step__mark {
  border-color: var(--db-celadon);
  background: var(--db-celadon);
  color: var(--db-cream);
}

.page-faq .faq-step:has(.faq-step__input:checked) .faq-step__mark::before {
  content: "✓";
  font-size: 14px;
}

.page-faq .faq-step:has(.faq-step__input:checked) .faq-step__title {
  color: var(--db-celadon);
}

.page-faq .faq-step:has(.faq-step__input:checked) .faq-chip {
  border-color: var(--db-celadon-light);
}

.page-faq .faq-track__foot {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px;
  margin-top: 24px;
  padding-left: 44px;
}

.page-faq .faq-track__hint {
  font-size: 13px;
  line-height: 1.7;
  color: var(--db-rock);
}

/* ---------- 常见卡点 ---------- */
.page-faq .faq-section {
  padding: 34px 0 20px;
}

.page-faq .faq-problems {
  margin-top: 8px;
  max-width: 58rem;
  border-top: 1px solid var(--db-line);
}

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

.page-faq .faq-problem summary {
  display: flex;
  align-items: baseline;
  gap: 12px;
  padding: 16px 4px;
  list-style: none;
  cursor: pointer;
  font-family: var(--db-serif);
  font-size: 17px;
  line-height: 1.5;
  color: var(--db-ink);
  transition: color .18s ease;
}

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

.page-faq .faq-problem summary::before {
  content: "+";
  flex: 0 0 auto;
  width: 16px;
  font-family: var(--db-mono);
  font-size: 15px;
  color: var(--db-copper-deep);
}

.page-faq .faq-problem[open] summary {
  color: var(--db-copper-deep);
}

.page-faq .faq-problem[open] summary::before {
  content: "–";
}

.page-faq .faq-problem summary:hover {
  color: var(--db-copper-deep);
}

.page-faq .faq-problem__body {
  padding: 0 4px 18px 32px;
  font-size: 15px;
  line-height: 1.78;
  color: var(--db-body-text);
}

/* ---------- 名词速查 ---------- */
.page-faq .faq-section .db-table th[scope="row"] {
  font-family: var(--db-serif);
  font-weight: 600;
  white-space: nowrap;
  color: var(--db-ink);
}

/* ---------- 下一步 ---------- */
.page-faq .faq-next {
  padding: 34px 0 48px;
}

.page-faq .faq-next__panel {
  border: 1px solid var(--db-line);
  background: var(--db-cream);
  box-shadow: var(--db-shadow);
}

.page-faq .faq-next .db-panel__head {
  padding: 18px 20px;
  border-bottom: 1px solid var(--db-line);
}

.page-faq .faq-next .db-panel__title {
  margin: 0;
  font-family: var(--db-serif);
  font-weight: 600;
  font-size: 20px;
  color: var(--db-ink);
}

.page-faq .faq-next .db-panel__body {
  padding: 20px;
}

.page-faq .faq-next__grid {
  display: grid;
  gap: 14px;
}

.page-faq .faq-next__card {
  display: block;
  padding: 16px 18px;
  border: 1px solid var(--db-line);
  border-left: 3px solid var(--db-copper);
  background: var(--db-paper);
  text-decoration: none;
  transition: background-color .2s ease, border-left-color .2s ease;
}

.page-faq .faq-next__card:hover,
.page-faq .faq-next__card:focus-visible {
  background: var(--db-cream);
  border-left-color: var(--db-celadon);
}

.page-faq .faq-next__cardno {
  display: block;
  font-family: var(--db-mono);
  font-size: 12px;
  letter-spacing: .14em;
  color: var(--db-copper-deep);
}

.page-faq .faq-next__cardtitle {
  display: block;
  margin-top: 6px;
  font-family: var(--db-serif);
  font-weight: 600;
  font-size: 17px;
  color: var(--db-ink);
}

.page-faq .faq-next__carddesc {
  display: block;
  margin-top: 6px;
  font-size: 14px;
  line-height: 1.75;
  color: var(--db-body-text);
}

/* ---------- 中屏及以上 ---------- */
@media (min-width: 720px) {
  .page-faq .faq-hero {
    grid-template-columns: minmax(0, 1fr) 300px;
    gap: 40px;
    padding: 40px 0 48px;
  }

  .page-faq .faq-hero h1 {
    font-size: 38px;
  }

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

  .page-faq .faq-track {
    padding: 46px 0 34px;
  }

  .page-faq .faq-track__head {
    grid-template-columns: 64px minmax(0, 1fr);
    gap: 6px 20px;
  }

  .page-faq .faq-track__head h2 {
    font-size: 26px;
  }

  .page-faq .faq-track__meta {
    grid-column: 2;
  }

  .page-faq .faq-step {
    padding-left: 52px;
  }

  .page-faq .faq-step::before {
    left: 15px;
  }

  .page-faq .faq-step__mark {
    left: -52px;
  }

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

  .page-faq .faq-step__mark {
    top: 18px;
  }

  .page-faq .faq-step::before {
    top: 48px;
  }

  .page-faq .faq-track__foot {
    padding-left: 52px;
  }

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

@media (min-width: 1024px) {
  .page-faq .faq-hero {
    grid-template-columns: minmax(0, 1fr) 330px;
    gap: 56px;
    padding: 52px 0 60px;
  }

  .page-faq .faq-hero h1 {
    font-size: 44px;
  }

  .page-faq .faq-problems {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    column-gap: 44px;
    border-bottom: 1px solid var(--db-line);
  }

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

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-index__item,
  .page-faq .faq-step__box,
  .page-faq .faq-step__mark,
  .page-faq .faq-step__title,
  .page-faq .faq-next__card,
  .page-faq .faq-problem summary {
    transition: none;
  }
}