.page-faq {
  --faq-rule: rgba(42, 92, 130, 0.5);
  --faq-qcol: clamp(10.5rem, 20vw, 15rem);
  --faq-ink: #071A2C;

  background-color: var(--ink-900);
  background-image:
    radial-gradient(1100px 560px at 8% -12%, rgba(42, 92, 130, 0.3), transparent 62%),
    radial-gradient(860px 480px at 96% 6%, rgba(224, 166, 60, 0.1), transparent 60%);
  background-repeat: no-repeat;
  color: var(--paper);
  font-family: var(--font-body);
  padding-top: clamp(96px, 12vw, 148px);
  padding-bottom: clamp(48px, 7vw, 96px);
  overflow-x: hidden;
}

.page-faq .shell {
  position: relative;
}

/* 面包屑 */
.page-faq .crumbs {
  margin-bottom: clamp(26px, 4vw, 46px);
}
.page-faq .crumbs__link {
  color: var(--steel);
}
.page-faq .crumbs__link:hover {
  color: var(--amber-soft);
}
.page-faq .crumbs__current {
  color: var(--amber);
}

/* 首屏 */
.page-faq .faq-hero {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(24px, 4vw, 52px);
  align-items: center;
  padding-bottom: clamp(32px, 5vw, 58px);
  border-bottom: 1px solid var(--faq-rule);
}
@media (min-width: 900px) {
  .page-faq .faq-hero {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
  }
}
.page-faq .faq-hero__kicker {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin: 0 0 16px;
  font-size: 0.8125rem;
  letter-spacing: 0.14em;
  color: var(--amber);
}
.page-faq .faq-hero__kicker::before {
  content: "";
  width: 26px;
  height: 1px;
  background: currentColor;
}
.page-faq .faq-hero__title {
  margin: 0 0 0.62em;
  font-family: var(--font-display);
  font-size: clamp(1.95rem, 1.1rem + 3.6vw, 3rem);
  font-weight: 600;
  line-height: 1.16;
  letter-spacing: -0.012em;
  color: var(--paper);
}
.page-faq .faq-hero__lead {
  margin: 0;
  max-width: 48ch;
  font-size: 1.0625rem;
  line-height: 1.9;
  color: var(--steel);
}
.page-faq .faq-hero__art {
  margin: 0;
  border: 1px solid var(--faq-rule);
  background: var(--ink-800);
}
.page-faq .faq-hero__art img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
  filter: saturate(0.9) contrast(1.02);
}

/* 分组索引卡 */
.page-faq .faq-cats {
  padding-top: clamp(32px, 5vw, 60px);
}
.page-faq .faq-cats__title {
  margin: 0 0 18px;
  font-family: var(--font-display);
  font-size: 1rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  color: var(--steel);
}
.page-faq .faq-cats__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 12px;
}
@media (min-width: 620px) {
  .page-faq .faq-cats__grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}
@media (min-width: 1060px) {
  .page-faq .faq-cats__grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}
.page-faq .faq-cat {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 7px;
  min-height: 168px;
  padding: 20px 20px 24px;
  background: var(--ink-800);
  border: 1px solid var(--faq-rule);
  color: var(--paper);
  text-decoration: none;
  transition: border-color var(--dur) var(--ease), transform var(--dur) var(--ease), background-color var(--dur) var(--ease);
}
.page-faq .faq-cat::after {
  content: "";
  position: absolute;
  right: 0;
  bottom: 0;
  width: 20px;
  height: 20px;
  background: var(--faq-ink);
  clip-path: polygon(100% 0, 100% 100%, 0 100%);
  transition: background-color var(--dur) var(--ease);
}
.page-faq .faq-cat:hover,
.page-faq .faq-cat:focus-visible {
  border-color: var(--amber);
  background: var(--ink-700);
  transform: translateY(-3px);
}
.page-faq .faq-cat:hover::after,
.page-faq .faq-cat:focus-visible::after {
  background: var(--ink-900);
}
.page-faq .faq-cat__no {
  font-size: 0.75rem;
  letter-spacing: 0.18em;
  color: var(--amber);
}
.page-faq .faq-cat__name {
  font-family: var(--font-display);
  font-size: 1.25rem;
  font-weight: 600;
  line-height: 1.3;
  letter-spacing: -0.005em;
}
.page-faq .faq-cat__count {
  font-size: 0.75rem;
  letter-spacing: 0.08em;
  color: var(--sage);
}
.page-faq .faq-cat__hint {
  margin-top: auto;
  padding-top: 10px;
  font-size: 0.875rem;
  line-height: 1.7;
  color: var(--steel);
}

/* 页面内检索 */
.page-faq .faq-lookup {
  margin-top: clamp(34px, 5vw, 60px);
  padding: clamp(20px, 3vw, 30px);
  background: var(--ink-800);
  border: 1px solid var(--faq-rule);
  border-left: 2px solid var(--amber);
}
.page-faq .faq-lookup__title {
  margin: 0 0 8px;
  font-family: var(--font-display);
  font-size: 1.25rem;
  font-weight: 600;
  letter-spacing: -0.005em;
  color: var(--paper);
}
.page-faq .faq-lookup__note {
  margin: 0 0 18px;
  font-size: 0.9375rem;
  line-height: 1.8;
  color: var(--steel);
  max-width: 62ch;
}
.page-faq .faq-lookup__field {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 8px;
}
@media (min-width: 720px) {
  .page-faq .faq-lookup__field {
    grid-template-columns: auto minmax(0, 1fr);
    align-items: center;
    gap: 16px;
  }
}
.page-faq .faq-lookup__label {
  font-size: 0.75rem;
  letter-spacing: 0.16em;
  color: var(--sage);
}
.page-faq .faq-lookup__input {
  width: 100%;
  min-height: 48px;
  padding: 12px 16px;
  background: var(--ink-900);
  border: 1px solid var(--ink-500);
  border-radius: 2px;
  color: var(--paper);
  font-family: var(--font-mono);
  font-size: 0.9375rem;
  line-height: 1.5;
}
.page-faq .faq-lookup__input::placeholder {
  color: rgba(147, 168, 188, 0.7);
}
.page-faq .faq-lookup__input:focus {
  outline: 2px solid var(--amber);
  outline-offset: 1px;
}
.page-faq .faq-lookup__empty {
  margin: 16px 0 0;
  padding-left: 14px;
  border-left: 2px solid var(--signal);
  font-size: 0.9375rem;
  line-height: 1.8;
  color: var(--steel);
}

/* 问答分组 */
.page-faq .faq-group {
  padding-top: clamp(38px, 6vw, 72px);
  scroll-margin-top: 96px;
}
.page-faq .faq-group__list {
  margin-top: clamp(18px, 2.6vw, 28px);
  border-bottom: 1px solid var(--faq-rule);
}
.page-faq .faq-item {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 10px;
  padding: clamp(20px, 3vw, 30px) 0;
  border-top: 1px solid var(--faq-rule);
}
@media (min-width: 860px) {
  .page-faq .faq-item {
    grid-template-columns: var(--faq-qcol) minmax(0, 1fr);
    gap: clamp(20px, 3.4vw, 48px);
  }
}
.page-faq .faq-item__q {
  margin: 0;
  font-family: var(--font-display);
  font-size: 1.0625rem;
  font-weight: 600;
  line-height: 1.6;
  letter-spacing: -0.003em;
  color: var(--paper);
}
.page-faq .faq-item__q::before {
  content: "";
  display: inline-block;
  width: 7px;
  height: 7px;
  margin-right: 9px;
  background: var(--amber);
  transform: rotate(45deg) translateY(-1px);
}
.page-faq .faq-item__a {
  font-size: 1rem;
  line-height: 1.9;
  color: var(--steel);
}
.page-faq .faq-item__a p {
  margin: 0 0 0.85em;
  max-width: 64ch;
}
.page-faq .faq-item__a p:last-of-type {
  margin-bottom: 0;
}

/* 步骤刻度 */
.page-faq .faq-steps {
  margin: 12px 0 4px;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 8px;
}
.page-faq .faq-steps__item {
  display: grid;
  grid-template-columns: 20px minmax(0, 1fr);
  align-items: start;
  gap: 10px;
  font-size: 0.9375rem;
  line-height: 1.75;
  color: var(--paper);
}
.page-faq .faq-steps__tick {
  display: block;
  width: 20px;
  height: 12px;
  margin-top: 6px;
  background: linear-gradient(to right, var(--sage) 0 12px, transparent 12px 100%), linear-gradient(to right, var(--sage) 0 6px, transparent 6px 100%);
  background-size: 20px 1px, 20px 1px;
  background-position: 0 2px, 0 8px;
  background-repeat: no-repeat;
}

/* 回答末尾的内链 */
.page-faq .faq-link {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin-top: 14px;
  padding-bottom: 2px;
  font-family: var(--font-display);
  font-size: 0.875rem;
  letter-spacing: 0.02em;
  color: var(--amber);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color var(--dur) var(--ease), border-color var(--dur) var(--ease);
}
.page-faq .faq-link:hover,
.page-faq .faq-link:focus-visible {
  color: var(--amber-soft);
  border-bottom-color: var(--amber-soft);
}
.page-faq .faq-link__glyph {
  flex: none;
  width: 34px;
  height: 8px;
}

/* 检索区配图 */
.page-faq .faq-lookup__art,
.page-faq .faq-group .media-frame {
  margin: clamp(18px, 2.6vw, 28px) 0 0;
  border: 1px solid var(--faq-rule);
  background: var(--ink-800);
}
.page-faq .faq-group .media-frame img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
  filter: saturate(0.85) contrast(1.02);
}

/* 联系区块 */
.page-faq .faq-contact {
  margin-top: clamp(48px, 7vw, 90px);
  padding: clamp(24px, 4vw, 44px);
  background: var(--ink-800);
  border: 1px solid var(--faq-rule);
  border-top: 2px solid var(--amber);
}
.page-faq .faq-contact__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 18px;
  margin-top: clamp(20px, 3vw, 32px);
}
@media (min-width: 720px) {
  .page-faq .faq-contact__grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 24px;
  }
}
.page-faq .faq-contact__cell {
  padding-top: 16px;
  border-top: 1px solid var(--faq-rule);
}
.page-faq .faq-contact__key {
  margin: 0 0 8px;
  font-size: 0.75rem;
  letter-spacing: 0.16em;
  color: var(--sage);
}
.page-faq .faq-contact__val {
  margin: 0 0 6px;
  font-size: 1.0625rem;
  line-height: 1.7;
  color: var(--paper);
  overflow-wrap: anywhere;
}
.page-faq .faq-contact__meta {
  margin: 0;
  font-size: 0.875rem;
  line-height: 1.7;
  color: var(--steel);
}

@media (max-width: 520px) {
  .page-faq {
    --faq-qcol: 100%;
  }
  .page-faq .faq-cat {
    min-height: 0;
  }
  .page-faq .faq-item__q {
    font-size: 1rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-cat,
  .page-faq .faq-link {
    transition: none;
  }
  .page-faq .faq-cat:hover,
  .page-faq .faq-cat:focus-visible {
    transform: none;
  }
}