.page-faq {
  --faq-index-w: 250px;
  background: var(--paper-100);
  color: var(--ink-900);
  padding-bottom: 84px;
}

/* ---------- 面包屑 ---------- */
.page-faq .breadcrumb {
  padding-top: 22px;
}

.page-faq .breadcrumb__list {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  margin: 0;
  padding: 0;
  list-style: none;
  font-size: 14px;
}

.page-faq .breadcrumb__item {
  display: inline-flex;
  align-items: center;
}

.page-faq .breadcrumb__item + .breadcrumb__item::before {
  content: "/";
  margin-right: 8px;
  color: var(--tile-300);
}

.page-faq .breadcrumb__link {
  color: var(--tile-600);
  text-decoration: none;
}

.page-faq .breadcrumb__link:hover,
.page-faq .breadcrumb__link:focus-visible {
  text-decoration: underline;
  text-underline-offset: 3px;
}

.page-faq .breadcrumb__current {
  color: var(--ink-400);
}

/* ---------- 页面开场 ---------- */
.page-faq .page-head {
  position: relative;
  padding: 38px 0 40px;
}

.page-faq .page-head::after {
  content: "";
  display: block;
  width: 76px;
  height: 3px;
  margin-top: 28px;
  background: var(--amber-500);
  border-radius: 2px;
}

.page-faq .page-head__kicker {
  margin: 0 0 14px;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: .14em;
  color: var(--amber-500);
}

.page-faq .page-head__title {
  max-width: 15em;
  margin: 0 0 18px;
  font-family: var(--font-serif);
  font-weight: 700;
  font-size: clamp(29px, 5.2vw, 50px);
  line-height: 1.24;
  letter-spacing: .01em;
  color: var(--tile-900);
}

.page-faq .page-head__lede {
  max-width: 44em;
  margin: 0;
  font-size: 17px;
  line-height: 1.78;
  color: var(--ink-600);
}

/* ---------- 双栏骨架 ---------- */
.page-faq .faq-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: 26px;
  align-items: start;
}

@media (min-width: 960px) {
  .page-faq .faq-layout {
    grid-template-columns: var(--faq-index-w) minmax(0, 1fr);
    gap: 48px;
  }
}

/* ---------- 左侧问题索引 ---------- */
.page-faq .faq-index {
  padding: 16px 14px;
  border: var(--hairline);
  border-radius: var(--radius-card);
  background: var(--mint-150);
}

@media (min-width: 960px) {
  .page-faq .faq-index {
    position: sticky;
    top: calc(var(--header-h) + 18px);
    padding: 20px 16px;
  }
}

.page-faq .faq-index__title {
  margin: 0 0 12px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .12em;
  color: var(--tile-900);
}

.page-faq .faq-index__list {
  display: flex;
  gap: 8px;
  margin: 0;
  padding: 0 0 6px;
  list-style: none;
  overflow-x: auto;
  scrollbar-width: thin;
}

.page-faq .faq-index__item {
  flex: 0 0 auto;
}

.page-faq .faq-index__link {
  display: flex;
  align-items: baseline;
  gap: 9px;
  padding: 8px 13px;
  border: 1px solid var(--tile-300);
  border-radius: var(--radius-pill);
  background: var(--paper-100);
  color: var(--tile-900);
  font-size: 14px;
  line-height: 1.5;
  text-decoration: none;
  white-space: nowrap;
  transition: background var(--dur) var(--ease), border-color var(--dur) var(--ease);
}

.page-faq .faq-index__link:hover,
.page-faq .faq-index__link:focus-visible {
  background: #fff;
  border-color: var(--tile-600);
}

@media (min-width: 960px) {
  .page-faq .faq-index__list {
    flex-direction: column;
    overflow: visible;
    padding: 0;
  }

  .page-faq .faq-index__item {
    flex: 0 0 auto;
  }

  .page-faq .faq-index__link {
    display: grid;
    grid-template-columns: 28px minmax(0, 1fr);
    gap: 4px;
    padding: 9px 11px;
    border-color: transparent;
    border-radius: 10px;
    background: transparent;
    white-space: normal;
  }
}

.page-faq .faq-index__num {
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 600;
  color: var(--amber-500);
}

/* ---------- 答案区 ---------- */
.page-faq .faq-body {
  display: flex;
  flex-direction: column;
  gap: 18px;
  min-width: 0;
}

.page-faq .faq-item {
  scroll-margin-top: calc(var(--header-h) + 24px);
  border: var(--hairline);
  border-radius: var(--radius-card);
  background: #fff;
  box-shadow: var(--shadow-soft);
  overflow: hidden;
  transition: border-color var(--dur) var(--ease), box-shadow var(--dur) var(--ease);
}

.page-faq .faq-item:target {
  border-color: var(--amber-500);
  box-shadow: var(--shadow-lift);
}

.page-faq .faq-item__summary {
  display: flex;
  align-items: baseline;
  gap: 14px;
  padding: 20px 20px 20px 18px;
  list-style: none;
  cursor: pointer;
  font-family: var(--font-serif);
  font-size: 19px;
  font-weight: 600;
  color: var(--tile-900);
  transition: background var(--dur) 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 {
  background: var(--blue-050);
}

.page-faq .faq-item__summary:focus-visible {
  outline: 2px solid var(--amber-500);
  outline-offset: -3px;
}

.page-faq .faq-item__summary::after {
  content: "+";
  flex: 0 0 auto;
  margin-left: auto;
  font-family: var(--font-mono);
  font-size: 19px;
  line-height: 1;
  color: var(--tile-600);
}

.page-faq .faq-item[open] > .faq-item__summary::after {
  content: "−";
}

.page-faq .faq-item[open] > .faq-item__summary {
  border-bottom: 1px dashed var(--tile-300);
}

.page-faq .faq-item__num {
  flex: 0 0 auto;
  font-family: var(--font-mono);
  font-size: 20px;
  font-weight: 600;
  color: var(--amber-500);
}

.page-faq .faq-item__title {
  flex: 1 1 auto;
}

.page-faq .faq-item__body {
  padding: 20px 20px 24px;
}

@media (min-width: 760px) {
  .page-faq .faq-item__body {
    padding: 22px 26px 28px;
  }
}

/* ---------- 结论条与步骤 ---------- */
.page-faq .faq-lede {
  margin: 0 0 18px;
  padding: 12px 16px;
  border-left: 3px solid var(--mint-500);
  border-radius: 0 10px 10px 0;
  background: var(--mint-150);
  font-size: 16px;
  line-height: 1.72;
  color: var(--tile-900);
}

.page-faq .faq-text {
  margin: 0 0 14px;
  font-size: 16px;
  line-height: 1.78;
  color: var(--ink-600);
}

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

.page-faq .faq-text a,
.page-faq .faq-foot a {
  color: var(--tile-600);
  text-decoration: none;
  border-bottom: 1px solid var(--tile-300);
}

.page-faq .faq-text a:hover,
.page-faq .faq-foot a:hover {
  border-bottom-color: var(--tile-600);
}

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

.page-faq .faq-steps > li {
  display: grid;
  grid-template-columns: 42px minmax(0, 1fr);
  gap: 12px;
  padding: 14px 0;
  border-top: 1px solid var(--blue-050);
}

.page-faq .faq-steps > li:first-child {
  padding-top: 2px;
  border-top: 0;
}

.page-faq .faq-steps__num {
  padding-top: 3px;
  font-family: var(--font-mono);
  font-size: 15px;
  font-weight: 600;
  letter-spacing: .04em;
  color: var(--amber-500);
}

.page-faq .faq-steps__text {
  font-size: 16px;
  line-height: 1.76;
  color: var(--ink-600);
}

.page-faq .faq-steps__text strong {
  font-weight: 600;
  color: var(--tile-900);
}

/* ---------- 图表容器微调 ---------- */
.page-faq .figure {
  margin: 0 0 18px;
}

.page-faq .figure__caption {
  font-size: 13px;
  line-height: 1.7;
  color: var(--ink-400);
}

/* ---------- 栏目入口列表 ---------- */
.page-faq .entry-grid {
  display: grid;
  gap: 12px;
  margin-top: 4px;
}

@media (min-width: 620px) {
  .page-faq .entry-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

.page-faq .entry {
  padding: 16px;
  border: var(--hairline);
  border-left: 3px solid var(--tile-600);
  border-radius: 12px;
  background: var(--paper-100);
}

.page-faq .entry__head {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  justify-content: space-between;
  gap: 10px;
  margin-bottom: 10px;
}

.page-faq .entry__name {
  margin: 0;
  font-family: var(--font-serif);
  font-size: 18px;
  font-weight: 600;
  color: var(--tile-900);
}

.page-faq .entry__cadence {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--tile-600);
  white-space: nowrap;
}

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

.page-faq .entry__paths li {
  display: grid;
  grid-template-columns: max-content minmax(0, 1fr);
  gap: 10px;
  padding: 4px 0;
  font-size: 15px;
  line-height: 1.7;
  color: var(--ink-600);
  border-top: 1px dashed var(--tile-300);
}

.page-faq .entry__paths li:first-child {
  border-top: 0;
}

.page-faq .entry__platform {
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--ink-400);
  padding-top: 2px;
}

/* ---------- 版本对照分栏 ---------- */
.page-faq .faq-split {
  display: grid;
  gap: 18px;
  margin-bottom: 6px;
}

@media (min-width: 760px) {
  .page-faq .faq-split {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
    align-items: center;
    gap: 30px;
  }
}

.page-faq .faq-split .figure {
  margin: 0;
}

/* ---------- 适配清单表格 ---------- */
.page-faq .table-wrap {
  position: relative;
  margin-top: 18px;
}

.page-faq .table-wrap::after {
  content: "";
  position: absolute;
  top: 0;
  right: 0;
  bottom: 28px;
  width: 34px;
  pointer-events: none;
  border-radius: 0 12px 12px 0;
  background: linear-gradient(to right, rgba(252, 248, 240, 0), var(--paper-100) 72%);
}

@media (min-width: 760px) {
  .page-faq .table-wrap::after {
    display: none;
  }
}

.page-faq .table-scroll {
  overflow-x: auto;
  border: var(--hairline);
  border-radius: 12px;
  background: #fff;
  -webkit-overflow-scrolling: touch;
}

.page-faq .faq-table {
  width: 100%;
  min-width: 580px;
  border-collapse: collapse;
  font-size: 15px;
}

.page-faq .faq-table caption {
  text-align: left;
}

.page-faq .faq-table th,
.page-faq .faq-table td {
  padding: 12px 14px;
  text-align: left;
  border-bottom: 1px solid var(--blue-050);
  white-space: nowrap;
}

.page-faq .faq-table thead th {
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: .08em;
  color: var(--tile-900);
  background: var(--mint-150);
}

.page-faq .faq-table tbody th {
  font-weight: 600;
  color: var(--tile-900);
}

.page-faq .faq-table tbody td {
  color: var(--ink-600);
}

.page-faq .faq-table tbody tr:nth-child(odd) {
  background: var(--mint-150);
}

.page-faq .faq-table tbody tr:nth-child(even) {
  background: #fff;
}

.page-faq .faq-table tbody tr:last-child th,
.page-faq .faq-table tbody tr:last-child td {
  border-bottom: 0;
}

.page-faq .faq-table__num {
  font-family: var(--font-mono);
  font-weight: 600;
  color: var(--amber-500) !important;
}

.page-faq .table-hint {
  display: block;
  margin-top: 8px;
  font-size: 13px;
  color: var(--ink-400);
}

@media (min-width: 760px) {
  .page-faq .table-hint {
    display: none;
  }
}

/* ---------- 联系方式块 ---------- */
.page-faq .faq-contact {
  margin-top: 20px;
  padding: 18px 20px;
  border: var(--hairline);
  border-left: 3px solid var(--amber-500);
  border-radius: 12px;
  background: var(--amber-150);
}

.page-faq .faq-contact__row {
  margin: 0 0 8px;
  font-size: 15px;
  line-height: 1.7;
  color: var(--tile-900);
  word-break: break-word;
}

.page-faq .faq-contact__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin: 14px 0 0;
}

.page-faq .faq-foot {
  margin: 22px 0 0;
  padding-top: 16px;
  border-top: 1px dashed var(--tile-300);
  font-size: 14px;
  line-height: 1.8;
  color: var(--ink-400);
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-item,
  .page-faq .faq-item__summary,
  .page-faq .faq-index__link {
    transition: none;
  }
}