.page-faq {
  padding-top: 2rem;
  padding-bottom: 3.5rem;
}

.page-faq .crumbs {
  display: flex;
  flex-wrap: wrap;
  gap: .25rem;
  margin: 0 0 1.5rem;
  padding: 0;
  list-style: none;
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: .06em;
  color: var(--water);
}

.page-faq .crumbs li {
  display: flex;
  align-items: center;
  gap: .35rem;
}

.page-faq .crumbs li + li::before {
  content: "/";
  color: var(--hair);
}

.page-faq .crumbs a {
  color: var(--ink-mid);
  text-decoration: none;
}

.page-faq .crumbs a:hover,
.page-faq .crumbs a:focus-visible {
  color: var(--cinnabar);
}

.page-faq .faq-hero {
  display: grid;
  gap: 1.75rem;
  border-top: 2px solid var(--ink-deep);
  padding-top: 1.5rem;
}

.page-faq .eyebrow {
  margin: 0 0 .65rem;
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: .16em;
  color: var(--cinnabar);
}

.page-faq h1 {
  margin: 0 0 1rem;
  font-family: var(--serif);
  font-weight: 700;
  font-size: clamp(1.7rem, 5.4vw, 2.7rem);
  line-height: 1.22;
  letter-spacing: -0.01em;
  color: var(--ink-deep);
  max-width: 22em;
}

.page-faq .lede {
  margin: 0;
  max-width: 34em;
  font-size: 1rem;
  line-height: 1.85;
  color: var(--ink-mid);
}

.page-faq .faq-hero-index {
  border: 1px solid var(--hair);
  border-radius: var(--radius);
  background: var(--paper);
  box-shadow: var(--shadow);
  padding: .95rem 1rem 1.05rem;
}

.page-faq .faq-index-title {
  margin: 0 0 .7rem;
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: .12em;
  color: var(--water);
}

.page-faq .faq-hero-index ol {
  display: grid;
  gap: .2rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-faq .faq-hero-index a {
  display: block;
  padding: .3rem 0 .3rem .6rem;
  border-left: 2px solid transparent;
  font-size: .875rem;
  line-height: 1.5;
  color: var(--ink-deep);
  text-decoration: none;
  transition: border-color 140ms var(--ease), color 140ms var(--ease);
}

.page-faq .faq-hero-index a:hover,
.page-faq .faq-hero-index a:focus-visible {
  border-left-color: var(--cinnabar);
  color: var(--cinnabar);
}

.page-faq .faq-chapter {
  margin-top: 3.25rem;
  scroll-margin-top: 5rem;
}

.page-faq .chapter-head {
  display: flex;
  align-items: baseline;
  gap: .7rem;
  margin-bottom: 1rem;
  padding-top: 1rem;
  border-top: 1px solid var(--hair);
}

.page-faq .chapter-index {
  font-family: var(--mono);
  font-size: 12px;
  font-variant-numeric: tabular-nums;
  letter-spacing: .08em;
  color: var(--cinnabar);
}

.page-faq .chapter-title {
  margin: 0;
  font-family: var(--serif);
  font-weight: 700;
  font-size: clamp(1.25rem, 3.6vw, 1.6rem);
  line-height: 1.32;
  letter-spacing: -0.01em;
  color: var(--ink-deep);
}

.page-faq .faq-chapter-lede {
  margin: 0 0 1.35rem;
  max-width: 40em;
  font-size: .9375rem;
  line-height: 1.8;
  color: var(--ink-mid);
}

/* 01 问答折叠组 */
.page-faq .faq-list {
  border-top: 1px solid var(--hair);
}

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

.page-faq .faq-item > summary {
  display: grid;
  grid-template-columns: 2.4rem minmax(0, 1fr) 1.1rem;
  gap: .5rem .75rem;
  padding: .95rem 0;
  list-style: none;
  cursor: pointer;
  outline-offset: 4px;
}

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

.page-faq .faq-num {
  font-family: var(--mono);
  font-size: 11px;
  line-height: 1.95;
  letter-spacing: .06em;
  font-variant-numeric: tabular-nums;
  color: var(--water);
}

.page-faq .faq-q {
  font-family: var(--serif);
  font-weight: 700;
  font-size: 1.0625rem;
  line-height: 1.5;
  color: var(--ink-deep);
  transition: color 140ms var(--ease);
}

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

.page-faq .faq-sign {
  position: relative;
  width: 13px;
  height: 13px;
  margin-top: .45rem;
  justify-self: end;
}

.page-faq .faq-sign::before,
.page-faq .faq-sign::after {
  content: "";
  position: absolute;
  background: var(--cinnabar);
  transition: transform 160ms var(--ease), opacity 160ms var(--ease);
}

.page-faq .faq-sign::before {
  left: 0;
  top: 6px;
  width: 13px;
  height: 1.5px;
}

.page-faq .faq-sign::after {
  left: 6px;
  top: 0;
  width: 1.5px;
  height: 13px;
}

.page-faq .faq-item[open] .faq-sign::after {
  transform: rotate(90deg);
  opacity: 0;
}

.page-faq .faq-body {
  margin-right: .15rem;
  padding: 0 1.4rem 1.4rem 3.15rem;
  border-right: 2px solid var(--cinnabar-soft);
}

.page-faq .faq-body p {
  margin: 0;
  max-width: 36em;
  font-size: .9375rem;
  line-height: 1.85;
  color: var(--ink-mid);
}

.page-faq .faq-body a {
  color: var(--cinnabar);
}

/* 02 iOS 五步 */
.page-faq .faq-steps-layout {
  display: grid;
  gap: 1.75rem;
}

.page-faq .faq-steps {
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-faq .faq-step {
  display: grid;
  grid-template-columns: 2.6rem minmax(0, 1fr);
  gap: .9rem;
  padding: 1rem 0;
  border-top: 1px solid var(--hair);
}

.page-faq .faq-step:first-child {
  border-top: 0;
  padding-top: .2rem;
}

.page-faq .faq-step-num {
  font-family: var(--mono);
  font-size: 1.5rem;
  line-height: 1;
  font-variant-numeric: tabular-nums;
  letter-spacing: -0.02em;
  color: var(--cinnabar);
  transition: color 140ms var(--ease);
}

.page-faq .faq-step:hover .faq-step-num {
  color: var(--ink-deep);
}

.page-faq .faq-step-title {
  margin: 0 0 .2rem;
  font-family: var(--serif);
  font-weight: 700;
  font-size: .9375rem;
  line-height: 1.45;
  color: var(--ink-deep);
}

.page-faq .faq-step-text {
  margin: 0;
  font-size: .875rem;
  line-height: 1.75;
  color: var(--ink-mid);
}

.page-faq .media-frame {
  margin: 0;
  border: 1px solid var(--hair);
  border-radius: var(--radius);
  background: var(--paper);
  box-shadow: var(--shadow);
  overflow: hidden;
}

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

.page-faq .media-caption {
  border-top: 1px solid var(--hair);
  background: var(--mist);
  padding: .6rem .85rem;
  font-size: .75rem;
  line-height: 1.65;
  color: var(--water);
}

.page-faq .faq-step-figure {
  max-width: 340px;
}

/* 03 平板积分榜 */
.page-faq .faq-board {
  display: grid;
  gap: 1.5rem;
}

.page-faq .faq-board-body p {
  margin: 0 0 .85rem;
  max-width: 34em;
  font-size: .9375rem;
  line-height: 1.85;
  color: var(--ink-mid);
}

.page-faq .faq-trouble {
  margin: .95rem 0 0;
  padding: 0;
  list-style: none;
  counter-reset: trouble;
}

.page-faq .faq-trouble li {
  counter-increment: trouble;
  position: relative;
  padding-left: 2rem;
  margin-bottom: .65rem;
  font-size: .875rem;
  line-height: 1.75;
  color: var(--ink-mid);
}

.page-faq .faq-trouble li:last-child {
  margin-bottom: 0;
}

.page-faq .faq-trouble li::before {
  content: counter(trouble, decimal-leading-zero);
  position: absolute;
  left: 0;
  top: .3em;
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: .04em;
  color: var(--cinnabar);
}

/* 04 账号与同步 */
.page-faq .faq-sync {
  display: grid;
  gap: 1.5rem;
}

.page-faq .faq-sync-main p {
  margin: 0 0 .9rem;
  max-width: 34em;
  font-size: .9375rem;
  line-height: 1.85;
  color: var(--ink-mid);
}

.page-faq .faq-sync-main p:last-child {
  margin-bottom: 0;
}

.page-faq .faq-sync-main a {
  color: var(--cinnabar);
  text-underline-offset: 3px;
}

.page-faq .faq-sync-card {
  padding: 1.05rem 1.15rem 1.15rem;
  background: var(--paper);
  border: 1px solid var(--hair);
  border-top: 3px solid var(--lime);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

.page-faq .faq-card-title {
  margin: 0;
  font-family: var(--serif);
  font-weight: 700;
  font-size: 1rem;
  line-height: 1.4;
  color: var(--ink-deep);
}

.page-faq .faq-check {
  display: grid;
  gap: .45rem;
  margin: .8rem 0 0;
  padding: 0;
  list-style: none;
}

.page-faq .faq-check li {
  position: relative;
  padding-left: 1rem;
  font-size: .875rem;
  line-height: 1.6;
  color: var(--ink-deep);
}

.page-faq .faq-check li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .6em;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--lime-deep);
}

.page-faq .faq-card-note {
  margin: .95rem 0 0;
  padding-top: .7rem;
  border-top: 1px solid var(--hair);
  font-size: .75rem;
  line-height: 1.65;
  color: var(--water);
}

/* 05 提醒（深色横带） */
.page-faq .faq-alarm {
  background: var(--ink-deep);
  border-radius: var(--radius);
  padding: 1.5rem 1.2rem;
  box-shadow: var(--shadow);
}

.page-faq .faq-alarm .chapter-head {
  border-top: 0;
  padding-top: 0;
  margin-bottom: .9rem;
}

.page-faq .faq-alarm .chapter-index {
  color: var(--lime);
}

.page-faq .faq-alarm .chapter-title {
  color: var(--paper);
}

.page-faq .faq-alarm-body p {
  margin: 0 0 .85rem;
  max-width: 34em;
  font-size: .9375rem;
  line-height: 1.85;
  color: rgba(242, 245, 241, .8);
}

.page-faq .faq-alarm-body p:last-child {
  margin-bottom: 0;
}

/* 06 求助出口 */
.page-faq .faq-stuck {
  padding: 1.25rem 1.15rem 1.35rem;
  background: var(--paper);
  border: 1px solid var(--hair);
  border-left: 3px solid var(--cinnabar);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

.page-faq .faq-stuck p {
  margin: 0 0 .9rem;
  max-width: 38em;
  font-size: .9375rem;
  line-height: 1.85;
  color: var(--ink-mid);
}

.page-faq .faq-actions {
  display: flex;
  flex-wrap: wrap;
  gap: .6rem;
  margin-top: 1.15rem;
}

.page-faq .faq-actions .btn {
  text-decoration: none;
}

@media (min-width: 880px) {
  .page-faq .faq-hero {
    grid-template-columns: minmax(0, 7fr) minmax(0, 3.4fr);
    gap: 3.5rem;
    align-items: start;
  }

  .page-faq .faq-sync {
    grid-template-columns: minmax(0, 5fr) minmax(0, 3.2fr);
    gap: 3rem;
    align-items: start;
  }
}

@media (min-width: 900px) {
  .page-faq .faq-steps-layout {
    grid-template-columns: minmax(0, 6fr) minmax(0, 3.2fr);
    gap: 3rem;
    align-items: start;
  }

  .page-faq .faq-board {
    grid-template-columns: minmax(0, 5fr) minmax(0, 4fr);
    gap: 2.5rem;
    align-items: start;
  }

  .page-faq .faq-alarm {
    padding: 1.75rem 2rem;
  }
}

@media (max-width: 420px) {
  .page-faq .faq-item > summary {
    grid-template-columns: 2rem minmax(0, 1fr) 1rem;
    gap: .4rem .6rem;
  }

  .page-faq .faq-body {
    padding-left: 2.6rem;
    padding-right: .9rem;
  }

  .page-faq .faq-q {
    font-size: 1rem;
  }

  .page-faq .faq-step {
    grid-template-columns: 2.1rem minmax(0, 1fr);
    gap: .7rem;
  }

  .page-faq .faq-step-num {
    font-size: 1.25rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-sign::before,
  .page-faq .faq-sign::after,
  .page-faq .faq-q,
  .page-faq .faq-step-num,
  .page-faq .faq-hero-index a {
    transition: none;
  }
}