.page-faq {
  --faq-radius: 3px;
  --faq-gap: 16px;
}

/* ---------- 首屏 ---------- */
.page-faq .guide-hero {
  position: relative;
  overflow: hidden;
  border-bottom: 1px solid var(--line);
  background:
    linear-gradient(180deg, rgba(178, 51, 39, 0.10) 0%, rgba(250, 246, 238, 0) 46%),
    linear-gradient(206deg, var(--jade-soft) 0%, var(--paper) 48%, var(--gold-soft) 100%);
}

.page-faq .guide-hero::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background-image:
    repeating-linear-gradient(90deg, rgba(30, 26, 22, 0.045) 0 1px, transparent 1px 96px),
    repeating-linear-gradient(0deg, rgba(30, 26, 22, 0.035) 0 1px, transparent 1px 96px);
  opacity: 0.7;
}

.page-faq .guide-hero__inner {
  position: relative;
  z-index: 1;
  padding-top: 34px;
  padding-bottom: 36px;
}

.page-faq .guide-hero__eyebrow {
  margin: 0 0 14px;
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--red);
  text-transform: uppercase;
}

.page-faq .guide-hero__title {
  margin: 0;
  max-width: 20ch;
  font-family: var(--font-editorial);
  font-weight: 600;
  font-size: 30px;
  line-height: 1.3;
  letter-spacing: -0.01em;
  color: var(--ink);
}

.page-faq .guide-hero__lead {
  margin: 18px 0 0;
  max-width: 60ch;
  font-size: 17px;
  line-height: 1.85;
  color: var(--ink);
}

.page-faq .guide-hero__marks {
  display: flex;
  flex-wrap: wrap;
  gap: 22px 40px;
  margin: 28px 0 0;
  padding: 22px 0 0;
  list-style: none;
  border-top: 1px solid var(--line-strong);
}

.page-faq .guide-hero__marks li {
  display: flex;
  align-items: baseline;
  gap: 10px;
}

.page-faq .guide-hero__marks .num-anchor {
  font-family: var(--font-mono);
  font-size: 40px;
  line-height: 1;
  letter-spacing: -0.02em;
  color: var(--gold);
}

.page-faq .guide-hero__marks .num-anchor--red {
  color: var(--red);
}

.page-faq .guide-hero__marks .num-anchor--jade {
  color: var(--jade);
}

.page-faq .guide-hero__marks .num-anchor__unit {
  font-size: 15px;
  letter-spacing: 0.06em;
  margin-left: 2px;
}

.page-faq .guide-hero__mark-label {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--stone);
}

/* ---------- 仓储代码窄条 ---------- */
.page-faq .code-strip {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px 20px;
  margin-top: 26px;
  padding: 12px 16px;
  border: 1px solid var(--line);
  border-radius: var(--faq-radius);
  background: var(--glass);
}

.page-faq .code-strip__label {
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--stone);
  text-transform: uppercase;
}

.page-faq .code-strip__list {
  display: flex;
  flex-wrap: wrap;
  gap: 6px 18px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-faq .code-strip__list li {
  display: flex;
  align-items: baseline;
  gap: 6px;
  font-size: 13px;
  color: var(--stone);
}

.page-faq .code-strip__list .mono {
  font-size: 13px;
  letter-spacing: 0.08em;
  color: var(--ink);
}

/* ---------- 档案式骨架 ---------- */
.page-faq .ledger {
  display: block;
  margin: 30px 0 60px;
}

.page-faq .ledger__rail {
  margin-bottom: 22px;
}

.page-faq .ledger__rail-title {
  margin: 0 0 10px;
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--stone);
  text-transform: uppercase;
}

.page-faq .ledger__index {
  display: flex;
  flex-direction: column;
  gap: 2px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-faq .ledger__index a {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 9px 10px;
  border-left: 3px solid transparent;
  color: var(--stone);
  text-decoration: none;
  font-size: 15px;
  line-height: 1.5;
  transition: background 160ms ease, color 160ms ease, border-color 160ms ease;
}

.page-faq .ledger__index a:hover {
  background: var(--paper-deep);
  color: var(--ink);
}

.page-faq .ledger__index a[aria-current] {
  border-left-color: var(--red);
  background: var(--red-soft);
  color: var(--ink);
  font-weight: 700;
}

.page-faq .ledger__index-num {
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--red);
}

.page-faq .ledger__index a[aria-current] .ledger__index-num {
  color: var(--red);
}

.page-faq .ledger__main {
  min-width: 0;
}

/* ---------- 章节 ---------- */
.page-faq .gsec {
  padding: 34px 0 38px;
  border-top: 1px solid var(--line);
  scroll-margin-top: 96px;
}

.page-faq .gsec:first-child {
  padding-top: 6px;
  border-top: none;
}

.page-faq .gsec__lead {
  max-width: 64ch;
  margin: 0 0 24px;
  font-size: 17px;
  line-height: 1.85;
  color: var(--ink);
}

.page-faq .gsec__lead .mono {
  font-size: 15px;
  letter-spacing: 0.06em;
  color: var(--red);
}

.page-faq .gsec__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 24px;
}

/* ---------- A 保修覆盖范围 ---------- */
.page-faq .tiers {
  display: grid;
  gap: var(--faq-gap);
}

.page-faq .tier {
  padding: 20px 20px 22px;
  border: 1px solid var(--line);
  border-top: 4px solid var(--red);
  border-radius: var(--faq-radius);
  background: var(--paper-deep);
}

.page-faq .tier--parts {
  border-top-color: var(--gold);
}

.page-faq .tier__head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 12px;
}

.page-faq .tier__term {
  font-size: 34px;
  line-height: 1;
  letter-spacing: -0.02em;
  color: var(--red);
}

.page-faq .tier--parts .tier__term {
  color: var(--gold-ink);
}

.page-faq .tier__title {
  margin: 10px 0 12px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 18px;
  line-height: 1.5;
  color: var(--ink);
}

.page-faq .tier__list {
  margin: 0;
  padding: 0 0 0 18px;
  list-style: none;
}

.page-faq .tier__list li {
  position: relative;
  padding: 5px 0;
  font-size: 15px;
  line-height: 1.75;
  color: var(--ink);
}

.page-faq .tier__list li::before {
  content: "";
  position: absolute;
  left: -16px;
  top: 15px;
  width: 6px;
  height: 6px;
  border-radius: 1px;
  background: var(--red);
  opacity: 0.65;
}

.page-faq .tier--parts .tier__list li::before {
  background: var(--gold);
}

/* ---------- 要点条 ---------- */
.page-faq .tip {
  margin-top: 22px;
  padding: 14px 18px;
  border-left: 4px solid var(--red);
  border-radius: 0 var(--faq-radius) var(--faq-radius) 0;
  background: var(--red-soft);
}

.page-faq .tip--jade {
  border-left-color: var(--jade);
  background: var(--jade-soft);
}

.page-faq .tip--gold {
  border-left-color: var(--gold);
  background: var(--gold-soft);
}

.page-faq .tip__label {
  margin: 0 0 6px;
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--red);
  text-transform: uppercase;
}

.page-faq .tip--jade .tip__label {
  color: var(--jade);
}

.page-faq .tip--gold .tip__label {
  color: var(--gold-ink);
}

.page-faq .tip p:last-child {
  margin: 0;
  max-width: 66ch;
  font-size: 16px;
  line-height: 1.8;
  color: var(--ink);
}

/* ---------- B 批次号 ---------- */
.page-faq .figure {
  margin: 0 0 24px;
}

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

.page-faq .figure__caption {
  margin-top: 8px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.04em;
  color: var(--stone);
}

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

.page-faq .places li {
  display: grid;
  grid-template-columns: 46px minmax(0, 1fr);
  column-gap: 12px;
  padding: 16px 0;
  border-bottom: 1px solid var(--line);
}

.page-faq .places__num {
  grid-column: 1;
  grid-row: 1 / span 2;
  padding-top: 4px;
  font-size: 13px;
  letter-spacing: 0.1em;
  color: var(--red);
}

.page-faq .places h3 {
  grid-column: 2;
  grid-row: 1;
  margin: 0;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 17px;
  line-height: 1.6;
  color: var(--ink);
}

.page-faq .places p {
  grid-column: 2;
  grid-row: 2;
  margin: 6px 0 0;
  font-size: 15px;
  line-height: 1.8;
  color: var(--stone);
}

.page-faq .places .mono {
  font-size: 14px;
  letter-spacing: 0.06em;
  color: var(--ink);
}

/* ---------- C 报修步骤 ---------- */
.page-faq .steps {
  position: relative;
  margin: 0;
  padding: 0 0 0 34px;
  list-style: none;
}

.page-faq .steps::before {
  content: "";
  position: absolute;
  left: 11px;
  top: 14px;
  bottom: 14px;
  width: 1px;
  background: linear-gradient(180deg, var(--red) 0%, var(--gold) 50%, var(--jade) 100%);
  opacity: 0.55;
}

.page-faq .steps__item {
  position: relative;
  margin-bottom: 10px;
}

.page-faq .steps__item::before {
  content: "";
  position: absolute;
  left: -30px;
  top: 18px;
  width: 13px;
  height: 13px;
  border-radius: 50%;
  background: var(--paper);
  border: 2px solid var(--red);
}

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

.page-faq .step {
  border: 1px solid var(--line);
  border-radius: var(--faq-radius);
  background: var(--paper-deep);
  overflow: hidden;
  transition: border-color 160ms ease, background 160ms ease;
}

.page-faq .step[open] {
  border-color: rgba(178, 51, 39, 0.45);
}

.page-faq .step__summary {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 6px 12px;
  padding: 12px 16px;
  cursor: pointer;
  list-style: none;
}

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

.page-faq .step__summary::marker {
  content: "";
}

.page-faq .step__summary:hover {
  background: var(--red-soft);
}

.page-faq .step__num {
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--red);
}

.page-faq .step__title {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 17px;
  line-height: 1.5;
  color: var(--ink);
}

.page-faq .step__time {
  margin-left: auto;
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--stone);
}

.page-faq .step__body {
  padding: 4px 16px 16px;
  border-top: 1px solid var(--line);
}

.page-faq .step__body p {
  margin: 12px 0 0;
  font-size: 15px;
  line-height: 1.85;
  color: var(--ink);
}

.page-faq .step__need {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 14px 0 0;
  padding: 0;
  list-style: none;
}

.page-faq .step__need li {
  padding: 5px 11px;
  border: 1px solid var(--line-strong);
  border-radius: 999px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.04em;
  color: var(--stone);
}

/* ---------- D 换新窗口 ---------- */
.page-faq .windows {
  display: grid;
  gap: var(--faq-gap);
}

.page-faq .window {
  position: relative;
  overflow: hidden;
  padding: 22px 22px 26px;
  border: 1px solid var(--line);
  border-radius: var(--faq-radius);
  background: var(--paper-deep);
}

.page-faq .window::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 4px;
  background: var(--red);
}

.page-faq .window--jade::after {
  background: var(--jade);
}

.page-faq .window__num {
  display: flex;
  align-items: baseline;
  gap: 6px;
  margin: 0;
  font-size: 56px;
  line-height: 1;
  letter-spacing: -0.03em;
  color: var(--red);
}

.page-faq .window--jade .window__num {
  color: var(--jade);
}

.page-faq .window__num span {
  font-size: 16px;
  letter-spacing: 0.1em;
}

.page-faq .window__title {
  margin: 14px 0 10px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 18px;
  line-height: 1.5;
  color: var(--ink);
}

.page-faq .window__text {
  margin: 0;
  font-size: 15px;
  line-height: 1.85;
  color: var(--ink);
}

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

.page-faq .window__need li {
  position: relative;
  padding: 4px 0 4px 20px;
  font-size: 14px;
  line-height: 1.7;
  color: var(--stone);
}

.page-faq .window__need li::before {
  content: "·";
  position: absolute;
  left: 6px;
  top: 3px;
  color: var(--red);
  font-weight: 700;
}

.page-faq .window--jade .window__need li::before {
  color: var(--jade);
}

/* ---------- E 常见问题 ---------- */
.page-faq .qa-list {
  margin: 0;
  border-top: 1px solid var(--line);
}

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

.page-faq .qa__q {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  padding: 16px 12px 16px 4px;
  cursor: pointer;
  list-style: none;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 17px;
  line-height: 1.6;
  color: var(--ink);
  transition: background 160ms ease;
}

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

.page-faq .qa__q::marker {
  content: "";
}

.page-faq .qa__q:hover {
  background: var(--paper-deep);
}

.page-faq .qa__badge {
  flex: 0 0 auto;
  width: 26px;
  height: 26px;
  margin-top: 2px;
  display: grid;
  place-items: center;
  border: 1px solid var(--line-strong);
  border-radius: var(--faq-radius);
  font-size: 12px;
  letter-spacing: 0.04em;
  color: var(--stone);
  transition: background 160ms ease, border-color 160ms ease, color 160ms ease;
}

.page-faq .qa[open] .qa__badge {
  background: var(--red);
  border-color: var(--red);
  color: #FAF6EE;
}

.page-faq .qa__a {
  padding: 0 4px 18px 40px;
}

.page-faq .qa__a p {
  margin: 0;
  max-width: 60ch;
  font-size: 15px;
  line-height: 1.85;
  color: var(--ink);
}

/* ---------- F 跨区与转手 ---------- */
.page-faq .grid {
  display: grid;
  gap: var(--faq-gap);
}

.page-faq .card {
  padding: 20px 20px 22px;
  border: 1px solid var(--line);
  border-top: 4px solid var(--jade);
  border-radius: var(--faq-radius);
  background: var(--paper-deep);
}

.page-faq .card--gold {
  border-top-color: var(--gold);
}

.page-faq .card__head {
  margin-bottom: 10px;
}

.page-faq .card__title {
  margin: 0 0 10px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 18px;
  line-height: 1.5;
  color: var(--ink);
}

.page-faq .card__meta {
  margin: 0;
  font-size: 15px;
  line-height: 1.85;
  color: var(--ink);
}

/* ---------- 焦点反馈 ---------- */
.page-faq a:focus-visible,
.page-faq summary:focus-visible {
  outline: 2px solid var(--red);
  outline-offset: 2px;
}

/* ---------- 移动端优先的窄屏规整 ---------- */
@media (max-width: 719px) {
  .page-faq .guide-hero__title {
    font-size: 25px;
  }

  .page-faq .guide-hero__marks {
    gap: 16px 26px;
  }

  .page-faq .guide-hero__marks .num-anchor {
    font-size: 32px;
  }

  .page-faq .code-strip {
    flex-direction: column;
    align-items: flex-start;
    gap: 10px;
  }

  .page-faq .tier__term {
    font-size: 28px;
  }

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

  .page-faq .qa__a {
    padding-left: 4px;
  }

  .page-faq .steps {
    padding-left: 26px;
  }

  .page-faq .steps::before {
    left: 7px;
  }

  .page-faq .steps__item::before {
    left: -24px;
    top: 20px;
    width: 11px;
    height: 11px;
  }

  .page-faq .step__time {
    margin-left: 0;
    width: 100%;
  }

  .page-faq .gsec__actions .btn {
    width: 100%;
    text-align: center;
  }
}

/* ---------- 平板：目录收成横滑编号条 ---------- */
@media (max-width: 959px) {
  .page-faq .ledger__rail {
    margin: 0 -20px 26px;
    padding: 0 20px 6px;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
  }

  .page-faq .ledger__rail-title {
    display: none;
  }

  .page-faq .ledger__index {
    flex-direction: row;
    gap: 8px;
    min-width: max-content;
  }

  .page-faq .ledger__index a {
    border: 1px solid var(--line);
    border-radius: 999px;
    padding: 8px 14px;
    font-size: 14px;
    white-space: nowrap;
  }

  .page-faq .ledger__index a:hover {
    background: var(--paper-deep);
  }

  .page-faq .ledger__index a[aria-current] {
    border-color: var(--red);
    background: var(--red-soft);
  }
}

@media (max-width: 959px) and (min-width: 600px) {
  .page-faq .grid,
  .page-faq .tiers,
  .page-faq .windows {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

/* ---------- 桌面：264px 粘性索引 + 内容长卷 ---------- */
@media (min-width: 960px) {
  .page-faq .guide-hero__inner {
    padding-top: 52px;
    padding-bottom: 54px;
  }

  .page-faq .guide-hero__title {
    font-size: 42px;
    max-width: 22ch;
  }

  .page-faq .guide-hero__lead {
    font-size: 18px;
    max-width: 56ch;
  }

  .page-faq .code-strip {
    margin-top: 0;
    transform: translateY(-1px);
  }

  .page-faq .ledger {
    display: grid;
    grid-template-columns: var(--rail) minmax(0, 1fr);
    gap: 52px;
    align-items: start;
    margin-top: 38px;
  }

  .page-faq .ledger__rail {
    position: sticky;
    top: 96px;
    margin-bottom: 0;
    padding-bottom: 12px;
    border-top: 2px solid var(--ink);
  }

  .page-faq .ledger__rail-title {
    margin-top: 12px;
  }

  .page-faq .ledger__index a {
    font-size: 15px;
  }

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

  .page-faq .gsec {
    padding: 42px 0 48px;
  }

  .page-faq .gsec__lead {
    max-width: 58ch;
  }

  .page-faq .window__num {
    font-size: 64px;
  }

  .page-faq .qa__q {
    font-size: 18px;
  }
}

/* ---------- 减少动效偏好 ---------- */
@media (prefers-reduced-motion: reduce) {
  .page-faq .ledger__index a,
  .page-faq .qa__badge,
  .page-faq .step,
  .page-faq .qa__q,
  .page-faq .step__summary {
    transition: none;
  }
}
</>>PAGE_CSS>>>