.page-faq {
  --faq-rail-w: 236px;
  --faq-side-w: 256px;
  --faq-measure: 46rem;
  padding-bottom: 24px;
}

/* ---------- 页头 ---------- */
.page-faq .page-head {
  padding: 40px 0 36px;
  border-bottom: 1px solid var(--line);
}

.page-faq .breadcrumb {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 28px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--ink-2);
}

.page-faq .breadcrumb a {
  color: var(--ink-2);
  text-decoration: none;
  transition: color 0.12s var(--ease);
}

.page-faq .breadcrumb a:hover {
  color: var(--cyan);
}

.page-faq .breadcrumb__sep {
  color: var(--line);
}

.page-faq .breadcrumb [aria-current="page"] {
  color: var(--ink);
}

.page-faq .faq-eyebrow {
  color: var(--sand);
  margin: 0 0 14px;
}

.page-faq .faq-title {
  margin: 0;
  font-size: clamp(40px, 11vw, 96px);
  font-weight: 900;
  line-height: 0.95;
  letter-spacing: -0.02em;
  color: var(--ink);
}

.page-faq .faq-lead {
  max-width: 58ch;
  margin: 20px 0 0;
  font-size: 17px;
  line-height: 1.75;
  color: var(--ink-long);
}

.page-faq .faq-facts {
  display: flex;
  flex-wrap: wrap;
  gap: 20px 44px;
  margin: 32px 0 0;
  padding: 0;
  list-style: none;
}

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

.page-faq .faq-facts .num {
  font-family: var(--font-mono);
  font-size: 26px;
  font-weight: 700;
  line-height: 1;
  color: var(--cyan);
  font-variant-numeric: tabular-nums;
}

.page-faq .faq-facts__label {
  font-size: 13px;
  color: var(--ink-2);
  letter-spacing: 0.02em;
}

/* ---------- 首图 ---------- */
.page-faq .faq-media-band {
  padding-top: 48px;
}

.page-faq .faq-media {
  margin: 0;
  border: 1px solid var(--line);
  background-color: var(--rail);
  overflow: hidden;
}

.page-faq .faq-media img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  object-fit: cover;
  aspect-ratio: 12 / 7;
}

.page-faq .faq-media .media__caption {
  padding: 14px 20px;
  border-top: 1px solid var(--line);
  font-size: 13px;
  line-height: 1.7;
  color: var(--ink-2);
}

/* ---------- 问答布局 ---------- */
.page-faq .faq-ask {
  padding-top: 72px;
}

.page-faq .faq-layout {
  display: grid;
  gap: 40px;
}

.page-faq .faq-tabs__rail .label {
  margin: 0 0 14px;
  color: var(--ink-2);
}

.page-faq .tabs__list {
  display: flex;
  gap: 6px;
  overflow-x: auto;
  padding-bottom: 4px;
  border-bottom: 1px solid var(--line);
  scrollbar-width: none;
}

.page-faq .tabs__list::-webkit-scrollbar {
  display: none;
}

.page-faq .tabs__tab {
  display: inline-flex;
  align-items: baseline;
  gap: 8px;
  flex: 0 0 auto;
  padding: 12px 14px;
  background: none;
  border: 0;
  cursor: pointer;
  white-space: nowrap;
  color: var(--ink-2);
  font-family: var(--font-sans);
  font-size: 15px;
  font-weight: 600;
  line-height: 1.3;
  transition: color 0.12s var(--ease);
}

.page-faq .tabs__tab .plate__no {
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.08em;
  color: var(--sand);
}

.page-faq .tabs__tab:hover {
  color: var(--ink);
}

.page-faq .tabs__tab[aria-selected="true"] {
  color: var(--ink);
}

.page-faq .tabs__tab[aria-selected="true"] .plate__no {
  color: var(--cyan);
}

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

.page-faq .faq-tabs__hint {
  margin: 14px 0 0;
  font-size: 13px;
  line-height: 1.7;
  color: var(--ink-2);
}

.page-faq .faq-tabs__panels {
  margin-top: 36px;
}

.page-faq .tabs__panel[hidden] {
  display: none;
}

.page-faq .faq-panel {
  max-width: var(--faq-measure);
}

.page-faq .faq-panel:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 6px;
}

.page-faq .faq-panel__title {
  margin: 0;
  font-size: clamp(22px, 3.4vw, 30px);
  font-weight: 800;
  letter-spacing: -0.01em;
  color: var(--ink);
}

.page-faq .faq-panel__note {
  margin: 10px 0 26px;
  font-size: 14px;
  line-height: 1.7;
  color: var(--ink-2);
}

/* ---------- 折叠问答 ---------- */
.page-faq .acc {
  border-top: 1px solid var(--line);
}

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

.page-faq .acc__head {
  margin: 0;
  font-size: inherit;
  font-weight: inherit;
}

.page-faq .acc__trigger {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 20px;
  width: 100%;
  padding: 18px 0;
  background: none;
  border: 0;
  cursor: pointer;
  text-align: left;
  color: var(--ink);
  font-family: var(--font-sans);
  font-size: 16px;
  font-weight: 700;
  line-height: 1.55;
  transition: color 0.12s var(--ease);
}

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

.page-faq .acc__trigger:hover .acc__q,
.page-faq .acc__trigger[aria-expanded="true"] .acc__q {
  color: var(--cyan);
}

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

.page-faq .acc__icon {
  position: relative;
  flex: 0 0 auto;
  width: 14px;
  height: 14px;
  margin-top: 5px;
}

.page-faq .acc__icon::before,
.page-faq .acc__icon::after {
  content: "";
  position: absolute;
  background-color: var(--cyan);
  transition: transform 0.18s var(--ease), opacity 0.18s var(--ease);
}

.page-faq .acc__icon::before {
  left: 0;
  right: 0;
  top: 6px;
  height: 1.5px;
}

.page-faq .acc__icon::after {
  top: 0;
  bottom: 0;
  left: 6px;
  width: 1.5px;
}

.page-faq .acc__trigger[aria-expanded="true"] .acc__icon::after {
  transform: scaleY(0);
  opacity: 0;
}

.page-faq .acc__panel {
  padding: 0 0 22px;
  color: var(--ink-long);
  font-size: 16px;
  line-height: 1.78;
}

.page-faq .acc__panel[hidden] {
  display: none;
}

.page-faq .acc__panel p {
  max-width: 62ch;
  margin: 0 0 10px;
}

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

.page-faq .acc__panel a {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid var(--cyan-deep);
}

.page-faq .acc__panel a:hover {
  color: var(--ink);
  border-bottom-color: var(--cyan);
}

/* ---------- 右侧留白栏 ---------- */
.page-faq .faq-side {
  display: grid;
  gap: 22px;
  align-content: start;
}

.page-faq .faq-side__card {
  padding: 22px 20px;
  border: 1px solid var(--line);
  border-left: 2px solid var(--cyan-deep);
  background-color: var(--rail);
}

.page-faq .faq-side__title {
  margin: 0 0 14px;
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--ink-2);
}

.page-faq .faq-side__links {
  display: grid;
  gap: 12px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-faq .faq-side__links a {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  font-size: 15px;
  color: var(--ink);
  text-decoration: none;
  transition: color 0.12s var(--ease);
}

.page-faq .faq-side__links a span {
  color: var(--cyan);
}

.page-faq .faq-side__links a:hover {
  color: var(--cyan);
}

.page-faq .faq-side__links a:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 3px;
}

.page-faq .faq-side__note {
  margin: 0;
  font-size: 13px;
  line-height: 1.8;
  color: var(--ink-2);
}

/* ---------- 客服支持 ---------- */
.page-faq .faq-support {
  padding-top: 88px;
  border-top: 1px solid var(--line);
  margin-top: 88px;
}

.page-faq .faq-support__grid {
  display: grid;
  gap: 32px;
}

.page-faq .faq-support__media {
  margin: 0;
  border: 1px solid var(--line);
  background-color: var(--panel);
  overflow: hidden;
}

.page-faq .faq-support__media img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  object-fit: cover;
  aspect-ratio: 10 / 7;
}

.page-faq .faq-support__body .label {
  color: var(--cyan);
  margin: 0 0 14px;
}

.page-faq .faq-support__title {
  margin: 0;
  font-size: clamp(24px, 4.4vw, 36px);
  font-weight: 800;
  line-height: 1.2;
  letter-spacing: -0.01em;
  color: var(--ink);
}

.page-faq .faq-support__text {
  max-width: 56ch;
  margin: 16px 0 26px;
  font-size: 16px;
  line-height: 1.78;
  color: var(--ink-long);
}

.page-faq .faq-contact {
  display: grid;
  gap: 14px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-faq .faq-contact li {
  display: grid;
  gap: 5px;
  padding-bottom: 14px;
  border-bottom: 1px solid var(--line);
}

.page-faq .faq-contact__label {
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--ink-2);
}

.page-faq .faq-contact__value {
  font-size: 16px;
  color: var(--ink);
  word-break: break-word;
}

.page-faq .faq-support__hint {
  margin: 20px 0 0;
  font-size: 13px;
  line-height: 1.75;
  color: var(--ink-2);
}

.page-faq .faq-support__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin: 28px 0 0;
}

/* ---------- 响应式 ---------- */
@media (min-width: 640px) {
  .page-faq .page-head {
    padding: 56px 0 48px;
  }

  .page-faq .faq-ask {
    padding-top: 88px;
  }

  .page-faq .faq-support {
    padding-top: 104px;
    margin-top: 104px;
  }
}

@media (min-width: 900px) {
  .page-faq .faq-layout {
    grid-template-columns: minmax(0, 1fr) var(--faq-side-w);
    gap: 56px;
    align-items: start;
  }

  .page-faq .faq-side {
    position: sticky;
    top: 112px;
  }

  .page-faq .faq-support__grid {
    grid-template-columns: minmax(0, 380px) minmax(0, 1fr);
    gap: 56px;
    align-items: center;
  }

  .page-faq .faq-panel__note {
    margin-bottom: 30px;
  }
}

@media (min-width: 1080px) {
  .page-faq .faq-tabs {
    display: grid;
    grid-template-columns: var(--faq-rail-w) minmax(0, 1fr);
    gap: 48px;
    align-items: start;
  }

  .page-faq .tabs__list {
    flex-direction: column;
    gap: 0;
    overflow: visible;
    padding-bottom: 0;
    border-bottom: 0;
    border-left: 1px solid var(--line);
  }

  .page-faq .tabs__tab {
    width: 100%;
    justify-content: flex-start;
    margin-left: -1px;
    padding: 14px 0 14px 18px;
    border-left: 1px solid transparent;
    white-space: normal;
    text-align: left;
    font-size: 16px;
    transition: color 0.12s var(--ease), border-color 0.12s var(--ease);
  }

  .page-faq .tabs__tab[aria-selected="true"] {
    border-left-color: var(--cyan);
  }

  .page-faq .tabs__tab:hover {
    border-left-color: var(--cyan-deep);
  }

  .page-faq .faq-tabs__hint {
    margin-top: 20px;
    padding-left: 18px;
  }

  .page-faq .faq-tabs__panels {
    margin-top: 0;
  }

  .page-faq .acc__trigger {
    padding: 20px 0;
    font-size: 17px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .tabs__tab,
  .page-faq .acc__trigger,
  .page-faq .acc__icon::before,
  .page-faq .acc__icon::after,
  .page-faq .faq-side__links a,
  .page-faq .breadcrumb a {
    transition: none;
  }
}