.page-faq {
  --faq-sticky-offset: calc(var(--frame-top, 104px) + 18px);
  --faq-rule: 1px solid rgba(28, 26, 23, 0.16);
  --faq-rule-strong: 1px solid var(--ink);
  --faq-row: rgba(231, 225, 214, 0.55);
  padding-bottom: 80px;
}

.page-faq .breadcrumb {
  margin: 22px 0 0;
  font-size: 13px;
}

/* ---------- 页头 ---------- */
.page-faq .faq-masthead {
  padding: 30px 0 40px;
  border-bottom: var(--faq-rule-strong);
}

.page-faq .faq-masthead__inner {
  display: grid;
  grid-template-columns: 1fr;
  gap: 26px;
}

.page-faq .faq-masthead h1 {
  margin: 10px 0 18px;
  font-size: clamp(30px, 7.4vw, 54px);
  line-height: 1.12;
  letter-spacing: -0.02em;
  font-weight: 900;
}

.page-faq .faq-masthead .lede {
  max-width: 42em;
}

.page-faq .faq-masthead__aside {
  padding: 16px 18px 18px;
  background: var(--paper-2);
  border: var(--faq-rule);
  border-top: 3px solid var(--summer);
}

.page-faq .faq-masthead__kicker {
  margin: 0 0 12px;
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--ink-2);
}

.page-faq .faq-masthead__steps {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 10px;
}

.page-faq .faq-masthead__steps li {
  display: flex;
  gap: 10px;
  align-items: baseline;
  padding-top: 10px;
  border-top: var(--faq-rule);
  font-size: 14.5px;
  line-height: 1.6;
  color: var(--ink);
}

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

.page-faq .faq-masthead__steps .mono {
  flex: none;
  font-size: 12px;
  color: var(--summer);
  letter-spacing: 0.06em;
}

/* ---------- 判断表 ---------- */
.page-faq .faq-identify {
  padding-top: 44px;
}

.page-faq .faq-identify__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 26px;
  margin-top: 24px;
}

.page-faq .faq-table-wrap {
  width: 100%;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}

.page-faq .faq-table {
  width: 100%;
  border-collapse: collapse;
  border: var(--faq-rule);
  font-size: 14px;
  background: var(--paper);
}

.page-faq .faq-table caption {
  caption-side: top;
  text-align: left;
  padding-bottom: 10px;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.08em;
  color: var(--ink-2);
}

.page-faq .faq-table th,
.page-faq .faq-table td {
  padding: 11px 10px;
  border-bottom: var(--faq-rule);
  text-align: left;
  vertical-align: top;
  line-height: 1.6;
}

.page-faq .faq-table thead th {
  background: var(--winter);
  color: var(--frost);
  border-bottom: 0;
  font-size: 12.5px;
  font-weight: 700;
  letter-spacing: 0.04em;
}

.page-faq .faq-table tbody th {
  font-weight: 700;
  white-space: nowrap;
  color: var(--ink);
}

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

.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 a {
  color: var(--summer);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.page-faq .faq-table a:hover {
  color: var(--autumn);
}

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

.page-faq .media img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
}

/* ---------- 问答主体 ---------- */
.page-faq .faq-main {
  padding-top: 52px;
}

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

.page-faq .faq-tabs {
  padding: 14px;
  background: var(--paper-2);
  border: var(--faq-rule);
}

.page-faq .faq-tabs__label {
  margin: 0 0 10px;
  padding-bottom: 8px;
  border-bottom: var(--faq-rule);
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--ink-2);
}

.page-faq .faq-tabs__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 5px;
}

.page-faq .faq-tab {
  display: flex;
  align-items: baseline;
  gap: 8px;
  padding: 9px 9px;
  border: 1px solid transparent;
  font-size: 13.5px;
  line-height: 1.4;
  color: var(--ink);
  text-decoration: none;
  transition: background-color 160ms var(--ease), border-color 160ms var(--ease);
}

.page-faq .faq-tab:hover,
.page-faq .faq-tab:focus-visible {
  background: var(--paper);
  border-color: var(--summer);
}

.page-faq .faq-tab__no {
  flex: none;
  font-size: 11.5px;
  letter-spacing: 0.08em;
}

.page-faq .faq-tabs__list li:nth-child(1) .faq-tab__no { color: var(--spring); }
.page-faq .faq-tabs__list li:nth-child(2) .faq-tab__no { color: var(--summer); }
.page-faq .faq-tabs__list li:nth-child(3) .faq-tab__no { color: var(--autumn); }
.page-faq .faq-tabs__list li:nth-child(4) .faq-tab__no { color: var(--winter); }
.page-faq .faq-tabs__list li:nth-child(5) .faq-tab__no { color: var(--spring); }
.page-faq .faq-tabs__list li:nth-child(6) .faq-tab__no { color: var(--summer); }

.page-faq .faq-tabs__hint {
  margin: 12px 0 0;
  padding-top: 10px;
  border-top: var(--faq-rule);
  font-size: 12.5px;
  line-height: 1.6;
  color: var(--ink-2);
}

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

.page-faq .faq-groups {
  display: grid;
  gap: 34px;
}

.page-faq .faq-group {
  border-top: var(--faq-rule-strong);
  padding-top: 14px;
  scroll-margin-top: calc(var(--frame-top, 104px) + 24px);
}

.page-faq .faq-group__title {
  display: flex;
  align-items: baseline;
  gap: 10px;
  margin: 0 0 4px;
  font-size: 19px;
  letter-spacing: -0.01em;
}

.page-faq .faq-group__no {
  flex: none;
  font-size: 12px;
  letter-spacing: 0.1em;
}

.page-faq .faq-groups .faq-group:nth-child(1) .faq-group__no { color: var(--spring); }
.page-faq .faq-groups .faq-group:nth-child(2) .faq-group__no { color: var(--summer); }
.page-faq .faq-groups .faq-group:nth-child(3) .faq-group__no { color: var(--autumn); }
.page-faq .faq-groups .faq-group:nth-child(4) .faq-group__no { color: var(--winter); }
.page-faq .faq-groups .faq-group:nth-child(5) .faq-group__no { color: var(--spring); }
.page-faq .faq-groups .faq-group:nth-child(6) .faq-group__no { color: var(--summer); }

.page-faq .qa {
  border-bottom: var(--faq-rule);
  border-left: 2px solid transparent;
  padding-left: 14px;
  transition: border-left-color 160ms var(--ease);
}

.page-faq .qa[open] {
  border-left-color: var(--summer);
}

.page-faq .qa__q {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 14px;
  padding: 14px 0;
  font-size: 15.5px;
  font-weight: 700;
  line-height: 1.55;
  color: var(--ink);
  cursor: pointer;
  list-style: none;
  transition: color 160ms var(--ease);
}

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

.page-faq .qa__q::after {
  content: "+";
  flex: none;
  margin-top: 3px;
  font-family: var(--font-mono);
  font-size: 15px;
  line-height: 1;
  color: var(--summer);
}

.page-faq .qa[open] .qa__q::after {
  content: "−";
}

.page-faq .qa__q:hover {
  color: var(--summer);
}

.page-faq .qa__a {
  padding: 0 0 16px;
  max-width: 46em;
  font-size: 14.5px;
  line-height: 1.85;
  color: var(--ink-2);
}

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

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

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

.page-faq .qa__a a:hover {
  color: var(--autumn);
}

.page-faq .faq-figure {
  margin: 20px 0 0;
}

/* ---------- 兜底联系 ---------- */
.page-faq .faq-stuck-section {
  padding-top: 56px;
}

.page-faq .faq-stuck {
  display: grid;
  grid-template-columns: 1fr;
  gap: 26px;
  border-top: var(--faq-rule-strong);
  padding-top: 26px;
}

.page-faq .faq-stuck h2 {
  margin: 8px 0 14px;
  font-size: clamp(23px, 5vw, 34px);
  line-height: 1.2;
  letter-spacing: -0.02em;
}

.page-faq .faq-stuck__lead p {
  max-width: 34em;
  font-size: 15px;
  line-height: 1.85;
  color: var(--ink-2);
}

.page-faq .faq-stuck__cards {
  display: grid;
  grid-template-columns: 1fr;
  gap: 14px;
}

.page-faq .faq-help {
  padding: 18px;
  background: var(--paper-2);
  border: var(--faq-rule);
}

.page-faq .faq-help:first-child {
  border-left: 3px solid var(--autumn);
}

.page-faq .faq-help__title {
  margin: 0 0 10px;
  font-size: 15.5px;
  font-weight: 700;
  letter-spacing: -0.01em;
}

.page-faq .faq-help p {
  margin: 0 0 12px;
  font-size: 14px;
  line-height: 1.75;
  color: var(--ink-2);
}

.page-faq .faq-help__mail {
  font-family: var(--font-mono);
  font-size: 14.5px;
  color: var(--ink);
  letter-spacing: 0.02em;
  word-break: break-all;
}

.page-faq .faq-help__row {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 10px;
}

.page-faq .faq-help__copy {
  padding: 7px 13px;
  font: inherit;
  font-size: 13px;
  color: var(--ink);
  background: transparent;
  border: var(--faq-rule-strong);
  border-radius: var(--radius);
  cursor: pointer;
  transition: background-color 160ms var(--ease), color 160ms var(--ease), border-color 160ms var(--ease);
}

.page-faq .faq-help__copy:hover,
.page-faq .faq-help__copy:focus-visible {
  background: var(--winter);
  color: var(--frost);
  border-color: var(--winter);
}

.page-faq .faq-help__status {
  font-size: 11.5px;
  color: var(--spring);
  letter-spacing: 0.04em;
}

.page-faq .faq-help .btn {
  margin-top: 2px;
}

/* ---------- 平板 ---------- */
@media (min-width: 760px) {
  .page-faq .faq-stuck__cards {
    grid-template-columns: 1fr 1fr;
  }

  .page-faq .faq-help:first-child {
    grid-column: 1 / -1;
  }

  .page-faq .faq-tabs__list {
    grid-template-columns: 1fr 1fr 1fr;
  }

  .page-faq .faq-table {
    font-size: 14.5px;
  }

  .page-faq .faq-table th,
  .page-faq .faq-table td {
    padding: 12px 14px;
  }
}

/* ---------- 桌面 ---------- */
@media (min-width: 1000px) {
  .page-faq .faq-masthead__inner {
    grid-template-columns: minmax(0, 7fr) minmax(0, 4fr);
    gap: 56px;
    align-items: start;
  }

  .page-faq .faq-identify__grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 4fr);
    gap: 44px;
    align-items: start;
  }

  .page-faq .faq-layout {
    grid-template-columns: 216px minmax(0, 1fr);
    gap: 52px;
    align-items: start;
  }

  .page-faq .faq-tabs {
    position: sticky;
    top: var(--faq-sticky-offset);
  }

  .page-faq .faq-tabs__list {
    grid-template-columns: 1fr;
  }

  .page-faq .faq-stuck {
    grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
    gap: 56px;
    align-items: start;
  }

  .page-faq .qa__q {
    font-size: 16.5px;
    padding: 16px 0;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .qa,
  .page-faq .qa__q,
  .page-faq .faq-tab,
  .page-faq .faq-help__copy {
    transition: none;
  }
}
<<<END>>>