.page-faq {
  --faq-hover: #F1EAD6;
  --faq-body: #35322A;
  background: var(--porcelain);
  color: var(--ink);
  padding-bottom: 96px;
}

/* ---------- 页首 ---------- */
.page-faq .faq-top {
  padding-top: 26px;
  padding-bottom: 52px;
}

.page-faq .faq-head__meta {
  margin: 20px 0 14px;
  font-size: 12px;
  letter-spacing: .14em;
  color: var(--moss);
}

.page-faq .faq-head__title {
  margin: 0 0 18px;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: clamp(30px, 6vw, 52px);
  line-height: 1.22;
  letter-spacing: -.01em;
}

.page-faq .faq-head__lead {
  margin: 0;
  max-width: 42em;
  font-size: 17px;
  line-height: 1.78;
  color: var(--faq-body);
}

/* ---------- 主栅格 ---------- */
.page-faq .faq-layout {
  display: block;
}

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

@media (min-width: 1080px) {
  .page-faq .faq-layout {
    display: grid;
    grid-template-columns: minmax(0, 1fr) 186px;
    column-gap: 56px;
    align-items: start;
  }
}

/* ---------- 区块骨架 ---------- */
.page-faq .faq-block {
  margin-bottom: 82px;
  scroll-margin-top: 96px;
}

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

.page-faq .faq-block__head {
  border-top: 1px solid var(--ink);
  padding-top: 16px;
  margin-bottom: 28px;
  display: grid;
  gap: 10px;
}

.page-faq .faq-block__index {
  margin: 0;
  font-size: 12px;
  letter-spacing: .18em;
  color: var(--gold);
}

.page-faq .faq-block__title {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: clamp(22px, 3.4vw, 30px);
  line-height: 1.3;
}

.page-faq .faq-block__lead {
  margin: 0;
  max-width: 42em;
  font-size: 16px;
  line-height: 1.78;
  color: var(--faq-body);
}

/* ---------- 01 版本号看板 ---------- */
.page-faq .faq-version {
  display: grid;
  border: 1px solid var(--line);
  background: var(--cream);
  box-shadow: var(--shadow-soft);
}

@media (min-width: 760px) {
  .page-faq .faq-version {
    grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
  }
}

.page-faq .faq-version__main {
  position: relative;
  background: var(--green);
  color: var(--porcelain);
  padding: 32px 28px 36px;
}

.page-faq .faq-version__main::before {
  content: "";
  position: absolute;
  top: 0;
  bottom: 0;
  left: 0;
  width: 3px;
  background: var(--gold);
}

.page-faq .faq-version__label {
  display: inline-block;
  margin: 0;
  padding: 4px 10px;
  font-size: 12px;
  letter-spacing: .14em;
  color: var(--gold);
  border: 1px solid rgba(201, 162, 75, .48);
  border-radius: var(--radius);
}

.page-faq .faq-version__number {
  margin: 16px 0 10px;
  font-size: clamp(46px, 10vw, 76px);
  font-weight: 500;
  line-height: 1;
  letter-spacing: .02em;
  color: var(--porcelain);
}

.page-faq .faq-version__note {
  margin: 0;
  max-width: 24em;
  font-size: 14.5px;
  line-height: 1.74;
  color: rgba(246, 243, 234, .74);
}

.page-faq .faq-version__routes {
  margin: 0;
  padding: 8px 26px 14px;
  list-style: none;
}

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

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

.page-faq .faq-version__routes a {
  display: flex;
  align-items: baseline;
  gap: 14px;
  padding: 15px 2px;
  font-size: 15.5px;
  line-height: 1.6;
  color: var(--ink);
  text-decoration: none;
  transition: color var(--dur) var(--ease), transform var(--dur) var(--ease);
}

.page-faq .faq-version__routes a:hover,
.page-faq .faq-version__routes a:focus-visible {
  color: var(--green);
  transform: translateX(3px);
}

.page-faq .faq-version__routes a:focus-visible {
  outline: 2px solid var(--gold);
  outline-offset: 2px;
}

.page-faq .faq-version__routes .mono {
  flex: none;
  font-size: 12px;
  letter-spacing: .12em;
  color: var(--gold);
}

/* ---------- 02 版本对照表 ---------- */
.page-faq .faq-timeline__figure {
  margin: 0 0 26px;
}

.page-faq .faq-table-wrap {
  overflow-x: auto;
  max-width: 100%;
  border: 1px solid var(--line);
  background: var(--cream);
  -webkit-overflow-scrolling: touch;
}

.page-faq .faq-table {
  width: 100%;
  min-width: 720px;
  border-collapse: collapse;
  font-size: 14.5px;
}

.page-faq .faq-table caption {
  padding: 12px 16px;
  text-align: left;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .08em;
  color: var(--moss);
  background: var(--porcelain);
  border-bottom: 1px solid var(--line);
}

.page-faq .faq-table thead th {
  padding: 12px 14px;
  text-align: left;
  font-weight: 500;
  font-size: 13px;
  letter-spacing: .08em;
  white-space: nowrap;
  background: var(--green);
  color: var(--porcelain);
}

.page-faq .faq-table thead th:first-child {
  position: sticky;
  left: 0;
  z-index: 3;
  background: var(--green);
}

.page-faq .faq-table tbody td {
  padding: 13px 14px;
  vertical-align: top;
  line-height: 1.62;
  border-bottom: 1px solid var(--line);
  background: var(--cream);
}

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

.page-faq .faq-table tbody td:first-child {
  position: sticky;
  left: 0;
  z-index: 2;
  padding-left: 34px;
  white-space: nowrap;
  font-family: var(--font-mono);
  font-size: 14px;
  letter-spacing: .02em;
  color: var(--green);
  background-color: var(--cream);
  background-image: linear-gradient(var(--line), var(--line));
  background-repeat: no-repeat;
  background-position: 12px 0;
  background-size: 1px 100%;
}

.page-faq .faq-table tbody td:first-child::before {
  content: "";
  position: absolute;
  left: 9px;
  top: 22px;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--amber);
}

.page-faq .faq-table tbody td:nth-child(2) {
  font-family: var(--font-mono);
  font-size: 13.5px;
  color: var(--moss);
  white-space: nowrap;
}

.page-faq .faq-table tbody td:last-child {
  color: var(--moss);
  white-space: nowrap;
}

.page-faq .faq-table tbody tr:hover td {
  background-color: var(--faq-hover);
}

.page-faq .faq-table tbody tr:hover td:first-child {
  background-color: var(--faq-hover);
}

.page-faq .faq-timeline__foot {
  margin: 16px 0 0;
  font-size: 14.5px;
  line-height: 1.76;
  color: var(--faq-body);
}

.page-faq .faq-timeline__foot a {
  color: var(--green);
  text-decoration: none;
  border-bottom: 1px solid var(--gold);
  padding-bottom: 1px;
}

.page-faq .faq-timeline__foot a:hover {
  color: var(--gold);
}

/* ---------- 03 编号规则 ---------- */
.page-faq .faq-rules__grid {
  display: grid;
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
}

@media (min-width: 760px) {
  .page-faq .faq-rules__grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

.page-faq .faq-rules__item {
  background: var(--cream);
  padding: 26px 24px 28px;
}

.page-faq .faq-rules__seg {
  display: inline-block;
  margin: 0 0 14px;
  padding-bottom: 4px;
  font-size: 12px;
  letter-spacing: .14em;
  color: var(--green);
  border-bottom: 1px solid var(--gold);
}

.page-faq .faq-rules__item h3 {
  margin: 0 0 10px;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 19px;
  line-height: 1.4;
}

.page-faq .faq-rules__item p {
  margin: 0;
  font-size: 15px;
  line-height: 1.76;
  color: var(--faq-body);
}

/* ---------- 04 跨端阅读 ---------- */
.page-faq .faq-devices__layout {
  display: grid;
  gap: 28px;
}

@media (min-width: 900px) {
  .page-faq .faq-devices__layout {
    grid-template-columns: minmax(0, 5fr) minmax(0, 6fr);
    gap: 40px;
    align-items: start;
  }
}

.page-faq .faq-devices__figure {
  margin: 0;
}

.page-faq .faq-device {
  display: grid;
  grid-template-columns: 26px minmax(0, 1fr);
  column-gap: 12px;
  border-top: 1px solid var(--line);
  padding: 17px 0 16px;
}

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

.page-faq .faq-device__num {
  grid-column: 1;
  grid-row: 1 / span 2;
  margin: 0;
  padding-top: 4px;
  font-size: 12px;
  letter-spacing: .1em;
  color: var(--gold);
}

.page-faq .faq-device h3 {
  grid-column: 2;
  grid-row: 1;
  margin: 0 0 6px;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 17px;
  line-height: 1.42;
}

.page-faq .faq-device p {
  grid-column: 2;
  grid-row: 2;
  margin: 0;
  font-size: 15px;
  line-height: 1.74;
  color: var(--faq-body);
}

/* ---------- 05 常见问题 ---------- */
.page-faq .faq-group {
  margin-bottom: 34px;
}

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

.page-faq .faq-group__title {
  display: flex;
  align-items: center;
  gap: 10px;
  margin: 0 0 14px;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 18px;
  line-height: 1.4;
}

.page-faq .faq-group__title .mono {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 24px;
  height: 24px;
  flex: none;
  font-size: 12px;
  color: var(--gold);
  border: 1px solid var(--gold);
  border-radius: var(--radius);
}

.page-faq .faq-item {
  border: 1px solid var(--line);
  background: var(--cream);
}

.page-faq .faq-item + .faq-item {
  border-top: 0;
}

.page-faq .faq-item summary {
  position: relative;
  list-style: none;
  cursor: pointer;
  padding: 15px 48px 15px 18px;
  font-size: 15.5px;
  line-height: 1.62;
  color: var(--ink);
  transition: background-color var(--dur) var(--ease);
}

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

.page-faq .faq-item summary:hover {
  background-color: var(--faq-hover);
}

.page-faq .faq-item summary:focus-visible {
  outline: 2px solid var(--gold);
  outline-offset: -2px;
}

.page-faq .faq-item summary::after {
  content: "";
  position: absolute;
  right: 18px;
  top: 50%;
  width: 10px;
  height: 10px;
  margin-top: -7px;
  border-right: 1.5px solid var(--gold);
  border-bottom: 1.5px solid var(--gold);
  transform: rotate(45deg);
  transition: transform var(--dur) var(--ease), margin-top var(--dur) var(--ease);
}

.page-faq .faq-item[open] summary::after {
  transform: rotate(-135deg);
  margin-top: -2px;
}

.page-faq .faq-item__body {
  padding: 0 18px 18px;
  border-top: 1px solid var(--line);
}

.page-faq .faq-item__body p {
  margin: 13px 0 0;
  max-width: 48em;
  font-size: 15px;
  line-height: 1.78;
  color: var(--faq-body);
}

/* ---------- 06 联系 ---------- */
.page-faq .faq-contact {
  background: var(--green-deep);
  color: var(--porcelain);
  padding: 34px 26px 36px;
}

.page-faq .faq-contact h2 {
  margin: 0 0 12px;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: clamp(21px, 3vw, 27px);
  line-height: 1.34;
  color: var(--porcelain);
}

.page-faq .faq-contact > p {
  margin: 0 0 20px;
  max-width: 44em;
  font-size: 15.5px;
  line-height: 1.76;
  color: rgba(246, 243, 234, .78);
}

.page-faq .faq-contact__lines {
  margin: 0 0 24px;
  padding: 18px 0 0;
  list-style: none;
  display: grid;
  gap: 10px;
  border-top: 1px solid rgba(220, 200, 155, .34);
  font-size: 15px;
  line-height: 1.6;
}

.page-faq .faq-contact__lines .mono {
  display: inline-block;
  min-width: 48px;
  margin-right: 10px;
  font-size: 12px;
  letter-spacing: .12em;
  color: var(--gold);
}

/* ---------- 右侧锚点 ---------- */
.page-faq .faq-anchor {
  display: none;
}

@media (min-width: 1080px) {
  .page-faq .faq-anchor {
    display: block;
    position: sticky;
    top: 96px;
    padding-top: 6px;
  }
}

.page-faq .faq-anchor__title {
  margin: 0 0 14px;
  padding-bottom: 10px;
  font-size: 11.5px;
  letter-spacing: .16em;
  color: var(--moss);
  border-bottom: 1px solid var(--line);
}

.page-faq .faq-anchor__list {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 2px;
}

.page-faq .faq-anchor__link {
  display: flex;
  align-items: baseline;
  gap: 9px;
  padding: 8px 0;
  font-size: 14px;
  line-height: 1.5;
  color: var(--moss);
  text-decoration: none;
  border-left: 2px solid transparent;
  padding-left: 10px;
  transition: color var(--dur) var(--ease), border-color var(--dur) var(--ease);
}

.page-faq .faq-anchor__link .mono {
  font-size: 11px;
  letter-spacing: .1em;
  color: var(--line);
}

.page-faq .faq-anchor__link:hover,
.page-faq .faq-anchor__link:focus-visible {
  color: var(--green);
  border-left-color: var(--gold);
}

.page-faq .faq-anchor__link:focus-visible {
  outline: 2px solid var(--gold);
  outline-offset: 2px;
}

/* ---------- 窄屏收口 ---------- */
@media (max-width: 600px) {
  .page-faq .faq-block {
    margin-bottom: 62px;
  }

  .page-faq .faq-version__routes {
    padding: 4px 20px 12px;
  }

  .page-faq .faq-contact {
    padding: 28px 20px 30px;
  }

  .page-faq .faq-item summary {
    padding: 14px 44px 14px 15px;
    font-size: 15px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-version__routes a,
  .page-faq .faq-item summary,
  .page-faq .faq-item summary::after,
  .page-faq .faq-anchor__link {
    transition: none;
  }

  .page-faq .faq-version__routes a:hover,
  .page-faq .faq-version__routes a:focus-visible {
    transform: none;
  }
}