.page-faq {
  --faq-rail-w: 208px;
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  padding-top: calc(var(--header-h) + 44px);
  padding-bottom: 56px;
  position: relative;
  overflow: hidden;
}

.page-faq .faq-hero .breadcrumb {
  margin-bottom: 28px;
}

.page-faq .faq-hero-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 28px;
}

.page-faq .faq-hero-lead h1 {
  margin: 14px 0 18px;
  font-family: var(--font-display);
  font-size: clamp(30px, 8vw, 56px);
  line-height: 1.16;
  letter-spacing: 0.02em;
  color: var(--paper-100);
}

.page-faq .faq-hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 26px;
}

.page-faq .faq-stats {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  background: var(--line-soft);
  border: 1px solid var(--line-soft);
}

.page-faq .faq-stat {
  background: var(--ink-800);
  padding: 18px 16px 20px;
}

.page-faq .faq-stat-num {
  display: block;
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: 26px;
  line-height: 1.15;
  letter-spacing: -0.01em;
  color: var(--gold-500);
}

.page-faq .faq-stat-label {
  display: block;
  margin-top: 8px;
  font-size: 13px;
  line-height: 1.55;
  color: var(--steel-400);
}

.page-faq .faq-hero-figure {
  margin: 40px 0 0;
  border: 1px solid var(--line-soft);
  background: var(--ink-800);
  overflow: hidden;
}

.page-faq .faq-hero-figure img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 16 / 7;
  object-fit: cover;
  filter: saturate(0.86) contrast(1.06);
}

/* ---------- 四步报修 ---------- */
.page-faq .faq-steps-section {
  scroll-margin-top: calc(var(--header-h) + 16px);
}

.page-faq .faq-steps {
  list-style: none;
  margin: 36px 0 0;
  padding: 0;
  border-top: 1px solid var(--line-soft);
}

.page-faq .faq-step {
  position: relative;
  padding: 24px 0 24px 44px;
  border-bottom: 1px solid var(--line-soft);
}

.page-faq .faq-step::after {
  content: "";
  position: absolute;
  left: 5px;
  top: 46px;
  bottom: -10px;
  width: 1px;
  background: var(--line-gold);
}

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

.page-faq .faq-step-dot {
  position: absolute;
  left: 0;
  top: 27px;
  width: 11px;
  height: 11px;
  border-radius: 50%;
  background: var(--gold-500);
  box-shadow: 0 0 0 4px rgba(201, 162, 39, 0.16);
}

.page-faq .faq-step-no {
  display: block;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--steel-400);
}

.page-faq .faq-step-title {
  margin: 8px 0 10px;
  font-family: var(--font-display);
  font-size: 20px;
  letter-spacing: 0.05em;
  color: var(--paper-100);
}

.page-faq .faq-step-desc {
  margin: 0;
  font-size: 15px;
  line-height: 1.78;
  color: var(--paper-300);
}

.page-faq .faq-step-meta {
  margin: 12px 0 0;
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: 0.03em;
  color: var(--gold-500);
}

/* ---------- 分组问答 ---------- */
.page-faq .faq-qa,
.page-faq .faq-check {
  scroll-margin-top: calc(var(--header-h) + 16px);
}

.page-faq .section-paper .section-title {
  color: var(--ink-900);
}

.page-faq .section-paper .section-desc {
  color: var(--muted-on-paper);
}

.page-faq .section-paper .eyebrow {
  color: var(--copper-600);
}

.page-faq .faq-qa-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: 26px;
  margin-top: 34px;
}

.page-faq .faq-rail-title {
  margin: 0 0 12px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.18em;
  color: var(--muted-on-paper);
}

.page-faq .faq-rail-list {
  display: flex;
  gap: 8px;
  list-style: none;
  margin: 0;
  padding: 0 0 6px;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}

.page-faq .faq-rail-list > li {
  flex: 0 0 auto;
}

.page-faq .faq-rail-link {
  display: flex;
  align-items: center;
  gap: 8px;
  min-height: 44px;
  padding: 0 14px;
  border: 1px solid var(--paper-300);
  background: transparent;
  text-decoration: none;
  transition: border-color var(--ease), background-color var(--ease);
}

.page-faq .faq-rail-link .index-code {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--steel-400);
}

.page-faq .faq-rail-name {
  font-size: 15px;
  color: var(--ink-900);
  white-space: nowrap;
}

.page-faq .faq-rail-link:hover,
.page-faq .faq-rail-link:focus-visible {
  border-color: var(--gold-500);
}

.page-faq a.faq-rail-link[data-active="true"] {
  border-color: var(--gold-500);
  background: rgba(201, 162, 39, 0.12);
}

.page-faq a.faq-rail-link[data-active="true"] .index-code {
  color: var(--gold-500);
}

.page-faq a.faq-rail-link[data-active="true"] .faq-rail-name {
  color: var(--ink-900);
  font-weight: 600;
}

.page-faq .faq-group {
  scroll-margin-top: calc(var(--header-h) + 20px);
  margin-bottom: 38px;
}

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

.page-faq .faq-group-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 12px;
  padding-bottom: 12px;
  border-bottom: 2px solid var(--ink-900);
}

.page-faq .faq-group-title {
  margin: 0;
  font-family: var(--font-display);
  font-size: 24px;
  letter-spacing: 0.08em;
  color: var(--ink-900);
}

.page-faq .faq-group-count {
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.14em;
  color: var(--copper-600);
}

.page-faq .faq-item {
  border-bottom: 1px solid var(--paper-300);
}

.page-faq .faq-q {
  display: block;
  position: relative;
  min-height: 44px;
  padding: 17px 40px 17px 0;
  font-size: 16px;
  font-weight: 600;
  line-height: 1.6;
  color: var(--ink-900);
  cursor: pointer;
  list-style: none;
  transition: color var(--ease);
}

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

.page-faq .faq-q::after {
  content: "";
  position: absolute;
  right: 8px;
  top: 24px;
  width: 10px;
  height: 10px;
  border-right: 1.5px solid var(--steel-400);
  border-bottom: 1.5px solid var(--steel-400);
  transform: rotate(45deg);
  transition: transform var(--ease), border-color var(--ease);
}

.page-faq .faq-q:hover {
  color: var(--copper-600);
}

.page-faq .faq-item[open] .faq-q {
  color: var(--copper-600);
}

.page-faq .faq-item[open] .faq-q::after {
  transform: rotate(-135deg);
  border-color: var(--copper-600);
}

.page-faq .faq-a {
  margin: 0 0 20px;
  padding: 4px 34px 0 16px;
  border-left: 2px solid var(--copper-600);
  font-size: 15px;
  line-height: 1.82;
  color: var(--muted-on-paper);
}

.page-faq .faq-a p {
  margin: 0 0 10px;
}

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

.page-faq .faq-a a {
  color: var(--copper-600);
  text-decoration: underline;
  text-underline-offset: 3px;
}

/* ---------- 派单与到场 ---------- */
.page-faq .faq-time {
  scroll-margin-top: calc(var(--header-h) + 16px);
}

.page-faq .faq-time-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: 32px;
}

.page-faq .faq-time-list {
  margin: 28px 0 0;
  border-top: 1px solid var(--line-soft);
}

.page-faq .faq-time-row {
  display: grid;
  grid-template-columns: 1fr;
  gap: 4px;
  padding: 16px 0;
  border-bottom: 1px solid var(--line-soft);
}

.page-faq .faq-time-row dt {
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: 0.14em;
  color: var(--gold-500);
}

.page-faq .faq-time-row dd {
  margin: 0;
  font-size: 15px;
  line-height: 1.72;
  color: var(--paper-300);
}

.page-faq .faq-time-num {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  color: var(--paper-100);
}

.page-faq .faq-time-note {
  margin: 24px 0 0;
  font-size: 14px;
  line-height: 1.75;
  color: var(--steel-400);
}

.page-faq .faq-time-note a {
  color: var(--gold-500);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.page-faq .faq-time-figure {
  margin: 0;
  border: 1px solid var(--line-soft);
  background: var(--ink-800);
  overflow: hidden;
}

.page-faq .faq-time-figure img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 10 / 7;
  object-fit: cover;
  filter: saturate(0.86) contrast(1.05);
}

.page-faq .faq-time-figure figcaption {
  padding: 14px 16px;
  font-size: 13px;
  line-height: 1.7;
  color: var(--steel-400);
  border-top: 1px solid var(--line-soft);
}

/* ---------- 三步自查 ---------- */
.page-faq .faq-check-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 20px;
  margin-top: 34px;
}

.page-faq .faq-check-card {
  display: flex;
  flex-direction: column;
  padding: 22px 20px 24px;
  background: #FCFAF6;
  border: 1px solid var(--paper-300);
  border-top: 3px solid var(--copper-600);
}

.page-faq .faq-check-head {
  margin-bottom: 20px;
}

.page-faq .faq-check-title {
  margin: 12px 0 0;
  font-family: var(--font-display);
  font-size: 19px;
  line-height: 1.45;
  letter-spacing: 0.03em;
  color: var(--ink-900);
}

.page-faq .faq-check-steps {
  list-style: none;
  margin: 0;
  padding: 0;
  counter-reset: chk;
  flex: 1 1 auto;
}

.page-faq .faq-check-steps li {
  position: relative;
  padding: 0 0 18px 30px;
  counter-increment: chk;
  font-size: 14.5px;
  line-height: 1.72;
  color: var(--muted-on-paper);
}

.page-faq .faq-check-steps li::before {
  content: counter(chk);
  position: absolute;
  left: 0;
  top: 1px;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 19px;
  height: 19px;
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--copper-600);
  background: #FCFAF6;
  border: 1px solid var(--line-copper);
}

.page-faq .faq-check-steps li::after {
  content: "";
  position: absolute;
  left: 9px;
  top: 22px;
  bottom: 0;
  width: 1px;
  background: var(--paper-300);
}

.page-faq .faq-check-steps li:last-child {
  padding-bottom: 0;
}

.page-faq .faq-check-steps li:last-child::after {
  content: none;
}

.page-faq .faq-check-stop {
  margin: 22px 0 0;
  padding: 13px 14px;
  border-left: 2px solid var(--copper-600);
  background: rgba(184, 92, 46, 0.08);
  font-size: 13.5px;
  line-height: 1.72;
  color: var(--ink-on-paper);
}

/* ---------- 费用与质保 ---------- */
.page-faq .faq-cost {
  scroll-margin-top: calc(var(--header-h) + 16px);
}

.page-faq .faq-cost-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 18px;
  margin-top: 34px;
}

.page-faq .faq-cost-card {
  padding: 24px 22px 26px;
  background: var(--ink-800);
  border: 1px solid var(--line-soft);
}

.page-faq .faq-cost-card-key {
  border-top: 3px solid var(--gold-500);
}

.page-faq .faq-cost-title {
  margin: 0;
  font-family: var(--font-display);
  font-size: 20px;
  letter-spacing: 0.06em;
  color: var(--paper-100);
}

.page-faq .faq-cost-list {
  list-style: none;
  margin: 16px 0 0;
  padding: 0;
}

.page-faq .faq-cost-list li {
  position: relative;
  padding-left: 18px;
  margin-bottom: 10px;
  font-size: 14.5px;
  line-height: 1.75;
  color: var(--paper-300);
}

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

.page-faq .faq-cost-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 10px;
  width: 8px;
  height: 1px;
  background: var(--gold-500);
}

.page-faq .faq-cost-note {
  margin: 26px 0 0;
  font-size: 14px;
  line-height: 1.75;
  color: var(--steel-400);
}

.page-faq .faq-cost-note a {
  color: var(--gold-500);
  text-decoration: underline;
  text-underline-offset: 3px;
}

/* ---------- 提交前信息 ---------- */
.page-faq .faq-submit {
  scroll-margin-top: calc(var(--header-h) + 16px);
}

.page-faq .faq-submit-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: 28px;
  margin-top: 34px;
}

.page-faq .faq-req-label {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.18em;
  color: var(--gold-500);
}

.page-faq .faq-req-label-opt {
  margin-top: 28px;
  color: var(--steel-400);
}

.page-faq .faq-req-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 12px;
  margin-top: 14px;
}

.page-faq .faq-req {
  position: relative;
  padding: 18px 16px 20px;
  background: var(--ink-800);
  border: 1px solid var(--line-soft);
}

.page-faq .faq-req-must {
  border-top: 2px solid var(--gold-500);
}

.page-faq .faq-req-code {
  display: block;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--steel-400);
}

.page-faq .faq-req h3 {
  margin: 8px 0 8px;
  font-family: var(--font-display);
  font-size: 18px;
  letter-spacing: 0.05em;
  color: var(--paper-100);
}

.page-faq .faq-req p {
  margin: 0;
  font-size: 14px;
  line-height: 1.72;
  color: var(--paper-300);
}

.page-faq .faq-copybox {
  padding: 22px 20px 24px;
  background: var(--ink-800);
  border: 1px solid var(--line-gold);
}

.page-faq .faq-copybox-title {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.18em;
  color: var(--gold-500);
}

.page-faq .faq-copy-text {
  margin: 14px 0 0;
  padding: 16px;
  background: var(--ink-900);
  border: 1px dashed var(--line-strong);
  font-family: var(--font-mono);
  font-size: 12.5px;
  line-height: 2;
  color: var(--paper-300);
  white-space: pre-wrap;
  word-break: break-word;
}

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

.page-faq .faq-cta {
  display: grid;
  gap: 18px;
  margin-top: 40px;
  padding-top: 28px;
  border-top: 1px solid var(--line-soft);
}

.page-faq .faq-cta-text {
  margin: 0;
  font-size: 15px;
  line-height: 1.78;
  color: var(--paper-300);
}

.page-faq .faq-cta-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

/* ---------- 平板 ---------- */
@media (min-width: 640px) {
  .page-faq .faq-req-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-faq .faq-req-grid-opt {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-faq .faq-time-row {
    grid-template-columns: 120px minmax(0, 1fr);
    gap: 18px;
    align-items: baseline;
  }
}

/* ---------- 桌面 ---------- */
@media (min-width: 900px) {
  .page-faq .faq-hero {
    padding-top: calc(var(--header-h) + 72px);
    padding-bottom: 78px;
  }

  .page-faq .faq-hero-grid {
    grid-template-columns: minmax(0, 1.5fr) minmax(0, 1fr);
    gap: 56px;
    align-items: end;
  }

  .page-faq .faq-hero-lead {
    padding-bottom: 4px;
  }

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

  .page-faq .faq-stat-num {
    font-size: 30px;
  }

  .page-faq .faq-hero-figure {
    margin-top: 56px;
  }

  /* 四步：横向铺开 */
  .page-faq .faq-steps {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    border-bottom: 1px solid var(--line-soft);
  }

  .page-faq .faq-step {
    padding: 46px 24px 26px;
    border-bottom: none;
    border-left: 1px solid var(--line-soft);
  }

  .page-faq .faq-step:first-child {
    padding-left: 0;
    border-left: none;
  }

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

  .page-faq .faq-step::after {
    left: 26px;
    right: 0;
    top: 20px;
    bottom: auto;
    width: auto;
    height: 1px;
    background: var(--line-gold);
  }

  .page-faq .faq-step:first-child::after {
    left: 0;
  }

  .page-faq .faq-step:last-child::after {
    right: 0;
  }

  .page-faq .faq-step-dot {
    left: 24px;
    top: 15px;
  }

  .page-faq .faq-step:first-child .faq-step-dot {
    left: 0;
  }

  /* 问答两栏 */
  .page-faq .faq-qa-layout {
    grid-template-columns: var(--faq-rail-w) minmax(0, 1fr);
    gap: 48px;
    margin-top: 44px;
  }

  .page-faq .faq-rail {
    position: sticky;
    top: calc(var(--header-h) + 26px);
    align-self: start;
  }

  .page-faq .faq-rail-list {
    flex-direction: column;
    gap: 0;
    overflow: visible;
    padding: 0;
  }

  .page-faq .faq-rail-list > li {
    width: 100%;
    border-bottom: 1px solid var(--paper-300);
  }

  .page-faq .faq-rail-link {
    width: 100%;
    padding: 0 10px;
    border: none;
    border-left: 2px solid transparent;
    background: transparent;
  }

  .page-faq .faq-rail-link:hover,
  .page-faq .faq-rail-link:focus-visible {
    border-left-color: var(--gold-500);
  }

  .page-faq a.faq-rail-link[data-active="true"] {
    border-left-color: var(--gold-500);
    background: rgba(201, 162, 39, 0.1);
  }

  .page-faq .faq-q {
    font-size: 16.5px;
    padding-right: 44px;
  }

  /* 派单两栏 */
  .page-faq .faq-time-layout {
    grid-template-columns: minmax(0, 1.35fr) minmax(0, 1fr);
    gap: 52px;
    align-items: start;
  }

  .page-faq .faq-time-figure {
    margin-top: 8px;
  }

  /* 自查三栏 */
  .page-faq .faq-check-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 24px;
    margin-top: 44px;
  }

  /* 费用三栏 */
  .page-faq .faq-cost-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 22px;
    margin-top: 44px;
  }

  /* 提交信息两栏 */
  .page-faq .faq-submit-layout {
    grid-template-columns: minmax(0, 1.2fr) minmax(0, 1fr);
    gap: 44px;
    align-items: start;
    margin-top: 44px;
  }

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

  .page-faq .faq-req-grid-opt {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-faq .faq-cta {
    grid-template-columns: minmax(0, 1fr) auto;
    align-items: center;
    gap: 32px;
  }
}

@media (min-width: 1100px) {
  .page-faq .faq-rail-name {
    font-size: 15.5px;
  }

  .page-faq .faq-check-card {
    padding: 26px 24px 28px;
  }
}