.page-faq {
  --faq-muted: #B9C9C2;
  --faq-rule: #17384F;
  --faq-stick: calc(var(--topbar-h) + 4px);
  padding-bottom: clamp(48px, 8vw, 96px);
}

.page-faq .breadcrumb {
  margin: clamp(18px, 3vw, 28px) 0 clamp(14px, 2vw, 20px);
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  overflow: hidden;
  display: flex;
  align-items: flex-end;
  min-height: 340px;
  border-radius: var(--radius-l);
  background: linear-gradient(135deg, var(--c-grass), var(--c-ink) 62%);
  margin-bottom: clamp(26px, 5vw, 52px);
}

.page-faq .faq-hero__img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.4;
}

.page-faq .faq-hero::after {
  content: "";
  position: absolute;
  inset: 0;
  background:
    linear-gradient(100deg, rgba(4, 18, 30, 0.94) 14%, rgba(4, 18, 30, 0.5) 58%, rgba(11, 122, 85, 0.36)),
    repeating-linear-gradient(115deg, transparent 0 46px, rgba(198, 249, 78, 0.05) 46px 47px);
  pointer-events: none;
}

.page-faq .faq-hero__body {
  position: relative;
  z-index: 2;
  display: grid;
  gap: 16px;
  max-width: 780px;
  padding: clamp(26px, 5vw, 64px);
}

.page-faq .faq-hero .title-xl {
  margin: 0;
  font-style: italic;
  letter-spacing: -0.01em;
}

.page-faq .faq-hero .lead {
  margin: 0;
  color: var(--faq-muted);
  max-width: 62ch;
}

.page-faq .faq-hero__meta {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: 0.02em;
  color: var(--c-teal);
  display: flex;
  flex-wrap: wrap;
  gap: 6px 14px;
}

/* ---------- 分类锚点条 ---------- */
.page-faq .faq-nav {
  position: sticky;
  top: var(--faq-stick);
  z-index: 6;
  background: rgba(7, 26, 43, 0.94);
  border-top: 1px solid var(--faq-rule);
  border-bottom: 1px solid var(--faq-rule);
  margin-bottom: clamp(24px, 4vw, 44px);
}

.page-faq .faq-nav__list {
  list-style: none;
  margin: 0;
  padding: 10px 0;
  display: flex;
  gap: 8px;
  overflow-x: auto;
  scrollbar-width: thin;
}

.page-faq .faq-nav__link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  white-space: nowrap;
  padding: 8px 14px;
  border: 1px solid var(--faq-rule);
  border-radius: 999px;
  font-size: 14px;
  color: var(--c-paper);
  text-decoration: none;
  transition: border-color var(--dur) var(--ease), color var(--dur) var(--ease),
    background-color var(--dur) var(--ease);
}

.page-faq .faq-nav__link:hover,
.page-faq .faq-nav__link:focus-visible {
  border-color: var(--c-lime);
  color: var(--c-lime);
  background: rgba(198, 249, 78, 0.07);
}

.page-faq .faq-nav__idx {
  font-family: var(--font-mono);
  font-size: 11.5px;
  color: var(--c-lime);
  letter-spacing: 0.06em;
}

/* ---------- 分类区块 ---------- */
.page-faq .faq-cat {
  padding: clamp(24px, 3.6vw, 40px) 0;
  border-top: 1px solid var(--faq-rule);
  scroll-margin-top: calc(var(--topbar-h) + 84px);
}

.page-faq .faq-cat--band {
  border-top-color: transparent;
  border-radius: var(--radius-m);
  padding-inline: clamp(16px, 3vw, 34px);
  background: linear-gradient(180deg, rgba(12, 35, 56, 0.82), rgba(12, 35, 56, 0.34));
}

.page-faq .faq-cat__inner {
  display: grid;
  gap: 20px;
}

.page-faq .faq-cat__aside {
  display: grid;
  gap: 10px;
  align-content: start;
}

.page-faq .faq-cat__aside .label {
  color: var(--c-teal);
}

.page-faq .faq-cat__title {
  margin: 0;
  font-size: clamp(21px, 2.6vw, 29px);
  font-weight: 800;
  font-style: italic;
  letter-spacing: -0.01em;
  line-height: 1.24;
  color: var(--c-paper);
}

.page-faq .faq-cat__desc {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.7;
  color: var(--faq-muted);
  border-left: 2px solid var(--c-night);
  padding-left: 12px;
}

/* ---------- 问答条目 ---------- */
.page-faq .qa-list {
  display: grid;
}

.page-faq .qa {
  border-top: 1px solid var(--faq-rule);
}

.page-faq .qa:last-child {
  border-bottom: 1px solid var(--faq-rule);
}

.page-faq .qa summary {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  padding: 18px 4px;
  cursor: pointer;
  list-style: none;
  transition: color var(--dur) var(--ease);
}

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

.page-faq .qa summary:hover .qa__q,
.page-faq .qa summary:focus-visible .qa__q {
  color: var(--c-lime);
}

.page-faq .qa__mark {
  flex: none;
  position: relative;
  width: 22px;
  height: 22px;
  margin-top: 2px;
  border: 1px solid var(--faq-rule);
  border-radius: 50%;
  transition: border-color var(--dur) var(--ease), background-color var(--dur) var(--ease);
}

.page-faq .qa__mark::before,
.page-faq .qa__mark::after {
  content: "";
  position: absolute;
  left: 50%;
  top: 50%;
  background: var(--c-lime);
  transition: transform var(--dur) var(--ease), opacity var(--dur) var(--ease);
}

.page-faq .qa__mark::before {
  width: 10px;
  height: 2px;
  transform: translate(-50%, -50%);
}

.page-faq .qa__mark::after {
  width: 2px;
  height: 10px;
  transform: translate(-50%, -50%);
}

.page-faq .qa[open] .qa__mark {
  border-color: var(--c-lime);
  background: rgba(198, 249, 78, 0.1);
}

.page-faq .qa[open] .qa__mark::after {
  transform: translate(-50%, -50%) scaleY(0);
  opacity: 0;
}

.page-faq .qa__q {
  margin: 0;
  font-size: 17px;
  font-weight: 600;
  line-height: 1.6;
  color: var(--c-paper);
  transition: color var(--dur) var(--ease);
}

.page-faq .qa__body {
  padding: 0 4px 22px 36px;
  color: var(--faq-muted);
  font-size: 15.5px;
  line-height: 1.78;
}

.page-faq .qa__body > p {
  margin: 0 0 12px;
}

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

.page-faq .qa__body a {
  color: var(--c-teal);
  text-decoration: underline;
  text-decoration-color: rgba(79, 209, 197, 0.4);
  text-underline-offset: 3px;
}

.page-faq .qa__body a:hover {
  color: var(--c-lime);
  text-decoration-color: var(--c-lime);
}

/* ---------- 有序步骤 ---------- */
.page-faq .steps {
  list-style: none;
  margin: 16px 0 0;
  padding: 0;
  display: grid;
  gap: 10px;
  counter-reset: faqstep;
}

.page-faq .steps > li {
  counter-increment: faqstep;
  display: grid;
  grid-template-columns: 30px 1fr;
  gap: 10px;
  align-items: baseline;
  font-size: 15px;
  line-height: 1.65;
}

.page-faq .steps > li::before {
  content: counter(faqstep, decimal-leading-zero);
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--c-lime);
  letter-spacing: 0.04em;
  border-bottom: 1px solid rgba(198, 249, 78, 0.35);
  padding-bottom: 2px;
}

/* ---------- 表格 ---------- */
.page-faq .table-scroll {
  overflow-x: auto;
  margin-top: 16px;
  -webkit-overflow-scrolling: touch;
}

.page-faq .table-scroll .data-table {
  min-width: 460px;
  width: 100%;
}

.page-faq .table-scroll .data-table th[scope="row"] {
  text-align: left;
  font-weight: 500;
  color: var(--faq-muted);
}

/* ---------- 配图 ---------- */
.page-faq .faq-figure {
  margin: clamp(22px, 3.4vw, 36px) 0 0;
}

.page-faq .faq-figure .media__img {
  width: 100%;
  height: auto;
  object-fit: cover;
  border-radius: var(--radius-m);
}

/* ---------- 结尾引导 ---------- */
.page-faq .faq-more {
  margin-top: clamp(34px, 5vw, 64px);
  padding: clamp(24px, 4vw, 46px);
  border-radius: var(--radius-l);
  border-left: 3px solid var(--c-lime);
  background: linear-gradient(120deg, rgba(11, 122, 85, 0.32), rgba(12, 35, 56, 0.75) 58%, rgba(7, 26, 43, 0.9));
  display: grid;
  gap: 22px;
}

.page-faq .faq-more__text {
  display: grid;
  gap: 12px;
}

.page-faq .faq-more__title {
  margin: 0;
  font-size: clamp(22px, 3vw, 32px);
  font-weight: 800;
  font-style: italic;
  letter-spacing: -0.01em;
  color: var(--c-paper);
}

.page-faq .faq-more__text p {
  margin: 0;
  max-width: 66ch;
  color: var(--faq-muted);
  line-height: 1.75;
}

.page-faq .faq-more__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

/* ---------- 响应式 ---------- */
@media (min-width: 760px) {
  .page-faq .faq-more {
    grid-template-columns: minmax(0, 1fr) auto;
    align-items: center;
  }

  .page-faq .faq-more__actions {
    justify-content: flex-end;
  }
}

@media (min-width: 940px) {
  .page-faq .faq-cat__inner {
    grid-template-columns: minmax(190px, 3fr) minmax(0, 9fr);
    gap: 0 48px;
  }

  .page-faq .faq-cat__aside {
    position: sticky;
    top: calc(var(--topbar-h) + 92px);
  }

  .page-faq .faq-cat__title {
    font-size: 27px;
  }

  .page-faq .qa summary {
    padding: 20px 6px;
  }

  .page-faq .qa__body {
    padding-left: 38px;
    padding-right: 32px;
  }

  .page-faq .faq-figure {
    margin-left: 0;
    max-width: 72ch;
  }
}

@media (max-width: 480px) {
  .page-faq .faq-hero {
    min-height: 280px;
    border-radius: var(--radius-m);
  }

  .page-faq .faq-hero__meta {
    font-size: 11.5px;
  }

  .page-faq .qa__body {
    padding-left: 0;
  }

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

@media (prefers-reduced-motion: reduce) {
  .page-faq *,
  .page-faq *::before,
  .page-faq *::after {
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}