.page-faq {
  --faq-gap: clamp(48px, 7vw, 88px);
  color: var(--ink);
}

/* ============ 首屏 ============ */

.page-faq .faq-hero {
  padding-top: clamp(24px, 4vw, 48px);
}

.page-faq .faq-hero__grid {
  display: grid;
  gap: 28px;
  align-items: start;
}

.page-faq .faq-hero__lede .index-chip {
  display: inline-block;
}

.page-faq h1 {
  margin: 14px 0 18px;
  font-family: var(--font-head);
  font-size: clamp(30px, 4.4vw, 46px);
  font-weight: 800;
  line-height: 1.18;
  letter-spacing: -0.02em;
  color: var(--ink);
}

.page-faq .faq-hero__lead {
  margin: 0;
  max-width: 62ch;
  font-size: 16px;
  line-height: 1.85;
  color: var(--ink-soft);
}

.page-faq .faq-quick {
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  background: linear-gradient(165deg, var(--grad-top), var(--grad-bottom));
  padding: clamp(20px, 3vw, 30px);
  box-shadow: var(--shadow-panel);
}

.page-faq .faq-quick__title {
  margin: 0 0 16px;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.08em;
  color: var(--muted);
}

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

.page-faq .faq-quick__row {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  justify-content: space-between;
  gap: 4px 16px;
  padding: 12px 0;
  border-bottom: 1px dashed var(--line);
}

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

.page-faq .faq-quick__row dt {
  flex: 0 0 auto;
  font-size: 13px;
  color: var(--muted);
}

.page-faq .faq-quick__row dd {
  flex: 1 1 auto;
  min-width: 0;
  margin: 0;
  font-family: var(--font-mono);
  font-size: 13px;
  line-height: 1.5;
  color: var(--cyan);
  text-align: right;
  font-variant-numeric: tabular-nums;
  overflow-wrap: anywhere;
}

/* ============ 分类切换 ============ */

.page-faq .faq-body__title {
  margin: 0 0 18px;
  font-family: var(--font-head);
  font-size: clamp(20px, 2.4vw, 26px);
  font-weight: 700;
  letter-spacing: -0.01em;
  color: var(--ink);
}

.page-faq .faq-switch {
  display: block;
}

.page-faq .faq-switch__tabs {
  display: flex;
  gap: 10px;
  overflow-x: auto;
  padding: 4px 2px 16px;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: thin;
}

.page-faq .faq-tab {
  flex: 0 0 auto;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  min-height: 44px;
  padding: 0 18px;
  border: 1px solid var(--line);
  border-radius: var(--pill);
  background: var(--panel-2);
  color: var(--ink-soft);
  font-size: 14px;
  line-height: 1;
  white-space: nowrap;
  cursor: pointer;
  transition: border-color 160ms ease, color 160ms ease, background-color 160ms ease;
}

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

.page-faq .faq-tab__num {
  font-size: 12px;
  color: var(--muted);
  letter-spacing: 0.04em;
}

.page-faq #faq-cat-1:checked ~ .faq-switch__tabs [for="faq-cat-1"],
.page-faq #faq-cat-2:checked ~ .faq-switch__tabs [for="faq-cat-2"],
.page-faq #faq-cat-3:checked ~ .faq-switch__tabs [for="faq-cat-3"],
.page-faq #faq-cat-4:checked ~ .faq-switch__tabs [for="faq-cat-4"],
.page-faq #faq-cat-5:checked ~ .faq-switch__tabs [for="faq-cat-5"] {
  border-color: var(--gold);
  background: rgba(243, 184, 70, 0.12);
  color: var(--ink);
}

.page-faq #faq-cat-1:checked ~ .faq-switch__tabs [for="faq-cat-1"] .faq-tab__num,
.page-faq #faq-cat-2:checked ~ .faq-switch__tabs [for="faq-cat-2"] .faq-tab__num,
.page-faq #faq-cat-3:checked ~ .faq-switch__tabs [for="faq-cat-3"] .faq-tab__num,
.page-faq #faq-cat-4:checked ~ .faq-switch__tabs [for="faq-cat-4"] .faq-tab__num,
.page-faq #faq-cat-5:checked ~ .faq-switch__tabs [for="faq-cat-5"] .faq-tab__num {
  color: var(--gold);
}

.page-faq #faq-cat-1:focus-visible ~ .faq-switch__tabs [for="faq-cat-1"],
.page-faq #faq-cat-2:focus-visible ~ .faq-switch__tabs [for="faq-cat-2"],
.page-faq #faq-cat-3:focus-visible ~ .faq-switch__tabs [for="faq-cat-3"],
.page-faq #faq-cat-4:focus-visible ~ .faq-switch__tabs [for="faq-cat-4"],
.page-faq #faq-cat-5:focus-visible ~ .faq-switch__tabs [for="faq-cat-5"] {
  outline: 2px solid var(--cyan);
  outline-offset: 2px;
}

.page-faq .faq-switch__panels > .faq-group {
  display: none;
}

.page-faq #faq-cat-1:checked ~ .faq-switch__panels > .faq-group:nth-child(1),
.page-faq #faq-cat-2:checked ~ .faq-switch__panels > .faq-group:nth-child(2),
.page-faq #faq-cat-3:checked ~ .faq-switch__panels > .faq-group:nth-child(3),
.page-faq #faq-cat-4:checked ~ .faq-switch__panels > .faq-group:nth-child(4),
.page-faq #faq-cat-5:checked ~ .faq-switch__panels > .faq-group:nth-child(5) {
  display: block;
  animation: faq-panel-in 240ms ease both;
}

@keyframes faq-panel-in {
  from {
    opacity: 0;
    transform: translateY(8px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* ============ 问题条目 ============ */

.page-faq .faq-figure {
  margin: 0 0 24px;
}

.page-faq .faq-figure .media-frame {
  border-radius: var(--r-md);
  overflow: hidden;
  border: 1px solid var(--line);
}

.page-faq .faq-figure img {
  display: block;
  width: 100%;
  height: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
}

.page-faq .media-frame__caption {
  margin-top: 10px;
  font-size: 12px;
  line-height: 1.6;
  color: var(--muted);
}

.page-faq .qa {
  border: 1px solid var(--line);
  border-radius: var(--r-md);
  background: var(--panel-2);
  overflow: hidden;
}

.page-faq .qa + .qa {
  margin-top: 12px;
}

.page-faq .qa[open] {
  background: var(--panel);
  border-color: rgba(23, 229, 200, 0.42);
}

.page-faq .qa__q {
  display: flex;
  align-items: baseline;
  gap: 14px;
  min-height: 44px;
  padding: 18px 20px;
  cursor: pointer;
  list-style: none;
}

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

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

.page-faq .qa__num {
  flex: 0 0 auto;
  padding-top: 2px;
  font-size: 12px;
  color: var(--muted);
  letter-spacing: 0.04em;
}

.page-faq .qa__label {
  flex: 1 1 auto;
  min-width: 0;
  font-size: 16px;
  font-weight: 600;
  line-height: 1.6;
  color: var(--ink);
}

.page-faq .qa__arrow {
  flex: 0 0 auto;
  width: 9px;
  height: 9px;
  margin-top: 6px;
  border-right: 2px solid var(--cyan);
  border-bottom: 2px solid var(--cyan);
  transform: rotate(45deg);
  transition: transform 160ms ease;
}

.page-faq .qa[open] .qa__arrow {
  transform: rotate(-135deg);
}

.page-faq .qa__a {
  padding: 0 20px 22px 20px;
  font-size: 15px;
  line-height: 1.85;
  color: var(--ink-soft);
}

.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(--cyan);
  text-decoration: underline;
  text-underline-offset: 3px;
}

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

/* ============ 十五分钟分段示意 ============ */

.page-faq .faq-segments {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 8px;
  margin: 16px 0 4px;
}

.page-faq .faq-segments__seg {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  border: 1px solid var(--line);
  border-radius: var(--r-sm);
  background: rgba(23, 229, 200, 0.07);
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--cyan);
  font-variant-numeric: tabular-nums;
}

/* ============ 联系我们 ============ */

.page-faq .faq-help {
  border-top: 2px solid var(--gold);
}

.page-faq .faq-help__grid {
  display: grid;
  gap: 14px;
  margin-top: 26px;
}

.page-faq .faq-help__item {
  padding: 18px 20px;
  border: 1px solid var(--line);
  border-radius: var(--r-md);
  background: var(--panel-2);
}

.page-faq .faq-help__key {
  margin: 0;
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--muted);
}

.page-faq .faq-help__value {
  margin: 10px 0 0;
  font-size: 15px;
  line-height: 1.7;
  color: var(--ink);
  overflow-wrap: anywhere;
}

.page-faq .faq-help__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 28px;
}

/* ============ 响应式 ============ */

@media (min-width: 640px) {
  .page-faq .faq-segments {
    grid-template-columns: repeat(6, minmax(0, 1fr));
  }
}

@media (min-width: 720px) {
  .page-faq .faq-help__grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 16px;
  }
}

@media (min-width: 900px) {
  .page-faq .faq-hero__grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    align-items: end;
    gap: 48px;
  }

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

  .page-faq .qa__a {
    padding: 0 24px 24px 62px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .qa__arrow {
    transition: none;
  }

  .page-faq #faq-cat-1:checked ~ .faq-switch__panels > .faq-group:nth-child(1),
  .page-faq #faq-cat-2:checked ~ .faq-switch__panels > .faq-group:nth-child(2),
  .page-faq #faq-cat-3:checked ~ .faq-switch__panels > .faq-group:nth-child(3),
  .page-faq #faq-cat-4:checked ~ .faq-switch__panels > .faq-group:nth-child(4),
  .page-faq #faq-cat-5:checked ~ .faq-switch__panels > .faq-group:nth-child(5) {
    animation: none;
  }
}