.page-faq {
  display: block;
  color: var(--paper);
}

.page-faq .faq-head {
  padding: clamp(20px, 3vw, 34px) 0 clamp(34px, 5vw, 64px);
  border-bottom: 1px solid var(--line);
}

.page-faq .faq-head .breadcrumb {
  margin-bottom: clamp(26px, 4vw, 48px);
}

.page-faq .faq-head__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(26px, 4vw, 48px);
  align-items: end;
}

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

.page-faq .faq-head__title {
  margin: 16px 0 0;
  max-width: 20em;
}

.page-faq .faq-head__lede {
  margin: 22px 0 0;
  max-width: 640px;
  color: var(--paper-80);
}

/* 日期区间示意控件 */
.page-faq .faq-rangemock {
  position: relative;
  display: grid;
  gap: 12px;
  padding: 20px 24px 18px;
  border: 1px solid var(--line-strong);
  background: linear-gradient(160deg, var(--ink-800), var(--ink-900));
}

.page-faq .faq-rangemock::before {
  content: "";
  position: absolute;
  left: -1px;
  top: -1px;
  bottom: -1px;
  width: 2px;
  background: var(--gold);
}

.page-faq .faq-rangemock__label {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.2em;
  color: var(--slate);
}

.page-faq .faq-rangemock__row {
  display: flex;
  align-items: center;
  gap: 14px;
}

.page-faq .faq-rangemock__date {
  font-family: var(--font-mono);
  font-size: 26px;
  font-weight: 700;
  letter-spacing: 0.02em;
  color: var(--paper);
}

.page-faq .faq-rangemock__dash {
  flex: 1 1 auto;
  height: 1px;
  background: var(--gold);
  opacity: .7;
}

.page-faq .faq-rangemock__meta {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--gold-soft);
}

/* 主体双栏 */
.page-faq .faq-body {
  display: block;
  padding-top: clamp(34px, 5vw, 64px);
  padding-bottom: clamp(48px, 7vw, 96px);
}

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

/* 左侧步骤锚点 */
.page-faq .faq-rail {
  padding-bottom: 28px;
  border-bottom: 1px solid var(--line);
  margin-bottom: 8px;
}

.page-faq .faq-rail__label {
  margin: 0 0 14px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.2em;
  color: var(--slate);
}

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

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

.page-faq .faq-rail__link {
  display: grid;
  grid-template-columns: 30px minmax(0, 1fr);
  gap: 12px;
  align-items: baseline;
  padding: 12px 2px;
  text-decoration: none;
  color: var(--paper-62);
  transition: color var(--dur) var(--ease), transform var(--dur) var(--ease);
}

.page-faq .faq-rail__link:hover,
.page-faq .faq-rail__link:focus-visible {
  color: var(--paper);
  transform: translateY(-2px);
}

.page-faq .faq-rail__link:focus-visible {
  outline: 2px solid var(--gold);
  outline-offset: 3px;
}

.page-faq .faq-rail__num {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--gold);
}

.page-faq .faq-rail__text {
  font-size: 14px;
  line-height: 1.5;
}

/* 区块 */
.page-faq .faq-section {
  padding: clamp(38px, 5.5vw, 72px) 0;
  border-bottom: 1px solid var(--line);
  scroll-margin-top: 118px;
}

.page-faq .faq-section:first-child {
  padding-top: 0;
}

.page-faq .faq-section:last-child {
  border-bottom: 0;
  padding-bottom: 0;
}

.page-faq .faq-section__lede {
  margin: 22px 0 0;
  max-width: 640px;
  font-size: 16.5px;
  line-height: 1.78;
  color: var(--paper-80);
}

/* 两步流程 */
.page-faq .faq-steps {
  list-style: none;
  margin: 32px 0 0;
  padding: 0;
  border-top: 1px solid var(--line);
}

.page-faq .faq-step {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 10px;
  padding: 26px 0;
  border-bottom: 1px solid var(--line);
}

.page-faq .faq-step__num {
  font-family: var(--font-mono);
  font-size: 30px;
  font-weight: 700;
  line-height: 1;
  letter-spacing: -0.03em;
  color: var(--gold);
}

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

.page-faq .faq-step__title {
  margin: 0;
  font-size: 19px;
  font-weight: 600;
  letter-spacing: -0.01em;
  color: var(--paper);
}

.page-faq .faq-step__text {
  margin: 10px 0 0;
  font-size: 15.5px;
  line-height: 1.78;
  color: var(--paper-80);
}

.page-faq .faq-figure {
  margin: 36px 0 0;
}

/* 差异原因 */
.page-faq .faq-reasons {
  list-style: none;
  margin: 34px 0 0;
  padding: 0;
  border-top: 1px solid var(--line);
}

.page-faq .faq-reason {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 10px;
  padding: 24px 0;
  border-bottom: 1px solid var(--line);
}

.page-faq .faq-reason__num {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.2em;
  color: var(--gold);
}

.page-faq .faq-reason__title {
  margin: 0;
  font-size: 18px;
  font-weight: 600;
  letter-spacing: -0.01em;
  color: var(--paper);
}

.page-faq .faq-reason__text {
  margin: 10px 0 0;
  font-size: 15.5px;
  line-height: 1.78;
  color: var(--paper-80);
}

/* 版本对照表 */
.page-faq .faq-table-wrap {
  margin-top: 36px;
  overflow-x: auto;
  border: 1px solid var(--line);
}

.page-faq .faq-table {
  width: 100%;
  min-width: 560px;
  border-collapse: collapse;
  font-size: 15px;
}

.page-faq .faq-table__cap {
  padding: 14px 18px;
  text-align: left;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.18em;
  color: var(--slate);
  border-bottom: 1px solid var(--line);
}

.page-faq .faq-table th,
.page-faq .faq-table td {
  padding: 14px 18px;
  text-align: left;
  vertical-align: top;
  border-bottom: 1px solid var(--line);
  line-height: 1.6;
}

.page-faq .faq-table tbody th {
  font-weight: 600;
  color: var(--paper);
  white-space: nowrap;
}

.page-faq .faq-table thead th {
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.14em;
  background: rgba(27, 42, 74, .55);
}

.page-faq .faq-table thead th.faq-table__a {
  color: var(--cyan);
}

.page-faq .faq-table thead th.faq-table__b {
  color: var(--orange);
}

.page-faq .faq-table td.faq-table__a {
  color: var(--paper-80);
  background: rgba(41, 211, 194, .05);
  box-shadow: inset 3px 0 0 rgba(41, 211, 194, .45);
}

.page-faq .faq-table td.faq-table__b {
  color: var(--paper-80);
  background: rgba(255, 122, 61, .06);
  box-shadow: inset 3px 0 0 rgba(255, 122, 61, .5);
}

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

/* 切换标签 */
.page-faq .faq-tabs {
  margin-top: 32px;
  border-top: 1px solid var(--line-strong);
  padding-top: 24px;
}

.page-faq .faq-tabs .tabs__list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.page-faq .faq-tabs .tabs__btn {
  appearance: none;
  border: 1px solid var(--line-strong);
  background: transparent;
  color: var(--paper-62);
  font-family: var(--font-body);
  font-size: 14px;
  font-weight: 600;
  padding: 10px 20px;
  cursor: pointer;
  transition: color var(--dur) var(--ease), border-color var(--dur) var(--ease), background var(--dur) var(--ease);
}

.page-faq .faq-tabs .tabs__btn:hover {
  color: var(--paper);
  border-color: var(--gold-soft);
}

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

.page-faq .faq-tabs .tabs__btn[aria-selected="true"] {
  color: var(--ink-900);
  background: var(--gold);
  border-color: var(--gold);
}

.page-faq .faq-tabpanel {
  padding: 26px 0 0;
}

/* 编号清单 */
.page-faq .faq-numlist {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 16px;
}

.page-faq .faq-numlist__item {
  display: grid;
  grid-template-columns: 34px minmax(0, 1fr);
  gap: 14px;
  align-items: start;
}

.page-faq .faq-numlist__num {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--gold);
  padding-top: 5px;
}

.page-faq .faq-numlist__item p {
  margin: 0;
  font-size: 15.5px;
  line-height: 1.78;
  color: var(--paper-80);
}

/* 折叠问答 */
.page-faq .faq-faqs {
  margin-top: 32px;
  display: grid;
  gap: 10px;
}

.page-faq .faq-item {
  border: 1px solid var(--line);
  background: rgba(27, 42, 74, .3);
}

.page-faq .faq-item__q {
  position: relative;
  cursor: pointer;
  list-style: none;
  padding: 17px 54px 17px 20px;
  font-size: 16px;
  font-weight: 600;
  color: var(--paper);
  border-left: 2px solid var(--gold);
  transition: color var(--dur) var(--ease);
}

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

.page-faq .faq-item__q::after {
  content: "+";
  position: absolute;
  right: 22px;
  top: 50%;
  transform: translateY(-50%);
  font-family: var(--font-mono);
  font-size: 18px;
  line-height: 1;
  color: var(--gold);
}

.page-faq .faq-item[open] .faq-item__q::after {
  content: "\2212";
}

.page-faq .faq-item__q:hover {
  color: var(--gold-soft);
}

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

.page-faq .faq-item[open] .faq-item__q {
  border-bottom: 1px solid var(--line);
}

.page-faq .faq-item__a {
  padding: 16px 22px 20px 20px;
  border-left: 2px solid var(--gold);
}

.page-faq .faq-item__a p {
  margin: 0;
  font-size: 15.5px;
  line-height: 1.78;
  color: var(--paper-80);
}

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

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

/* 提交清单 */
.page-faq .faq-prep {
  list-style: none;
  margin: 32px 0 0;
  padding: 0;
  border-top: 1px solid var(--line);
}

.page-faq .faq-prep__item {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 6px;
  padding: 15px 0;
  border-bottom: 1px solid var(--line);
}

.page-faq .faq-prep__key {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--gold);
  font-weight: 600;
}

.page-faq .faq-prep__val {
  font-size: 15.5px;
  line-height: 1.7;
  color: var(--paper-80);
}

/* 联系区 */
.page-faq .faq-contact {
  margin-top: 34px;
  padding: 24px 26px;
  border: 1px solid var(--line-strong);
  border-left: 3px solid var(--gold);
  background: linear-gradient(150deg, rgba(217, 164, 65, .1), rgba(16, 26, 51, 0));
  display: grid;
  gap: 18px;
  align-items: center;
}

.page-faq .faq-contact__text {
  margin: 0;
  font-size: 15.5px;
  line-height: 1.78;
  color: var(--paper-80);
}

.page-faq .faq-contact .btn {
  justify-self: start;
}

/* 延伸入口 */
.page-faq .faq-links {
  margin-top: 26px;
  display: grid;
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
}

.page-faq .faq-links__item {
  display: grid;
  gap: 6px;
  padding: 20px 22px;
  background: var(--ink-900);
  text-decoration: none;
  transition: background var(--dur) var(--ease);
}

.page-faq .faq-links__item:hover {
  background: var(--ink-800);
}

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

.page-faq .faq-links__label {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.2em;
  color: var(--gold);
}

.page-faq .faq-links__text {
  font-size: 15px;
  line-height: 1.6;
  color: var(--paper-80);
}

/* 中屏起：步骤与原因改为左右分栏 */
@media (min-width: 720px) {
  .page-faq .faq-step {
    grid-template-columns: 92px minmax(0, 1fr);
    gap: 0 28px;
    padding: 34px 0;
  }

  .page-faq .faq-step__body {
    padding-top: 4px;
  }

  .page-faq .faq-reason {
    grid-template-columns: 64px minmax(0, 1fr);
    gap: 0 24px;
    padding: 30px 0;
  }

  .page-faq .faq-reason__num {
    padding-top: 6px;
  }

  .page-faq .faq-prep__item {
    grid-template-columns: 170px minmax(0, 1fr);
    gap: 0 24px;
    align-items: baseline;
  }

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

/* 大屏起：左侧锚点栏与内容栏并排，锚点保持可见 */
@media (min-width: 1024px) {
  .page-faq .faq-body {
    display: grid;
    grid-template-columns: minmax(0, 236px) minmax(0, 1fr);
    gap: clamp(40px, 5vw, 80px);
    align-items: start;
  }

  .page-faq .faq-rail {
    position: sticky;
    top: 112px;
    padding-bottom: 0;
    border-bottom: 0;
    margin-bottom: 0;
  }

  .page-faq .faq-head__grid {
    grid-template-columns: minmax(0, 1fr) 264px;
  }

  .page-faq .faq-contact {
    grid-template-columns: minmax(0, 1fr) auto;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-rail__link,
  .page-faq .faq-links__item,
  .page-faq .faq-tabs .tabs__btn,
  .page-faq .faq-item__q {
    transition: none;
  }

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