.page-faq {
  --faq-rail-w: 224px;
  --faq-ease: cubic-bezier(0.2, 0.7, 0.3, 1);
  background: var(--pitch-night);
  color: var(--scoreboard-white);
  font-family: var(--font-body);
}

.page-faq .breadcrumbs {
  padding-top: 16px;
}

.page-faq .crumbs {
  display: flex;
  flex-wrap: wrap;
  gap: 6px 10px;
  margin: 0;
  padding: 0;
  list-style: none;
  font-size: 12px;
  color: var(--chalk-gray);
}

.page-faq .crumbs li + li::before {
  content: "/";
  margin-right: 10px;
  color: var(--mist-line);
}

.page-faq .crumbs a {
  color: var(--chalk-gray);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color 160ms var(--faq-ease), border-color 160ms var(--faq-ease);
}

.page-faq .crumbs a:hover,
.page-faq .crumbs a:focus-visible {
  color: var(--fluoro-cyan);
  border-bottom-color: var(--fluoro-cyan);
}

/* ---------- 控制台式开场 ---------- */

.page-faq .faq-console {
  position: relative;
  overflow: hidden;
  margin-top: 12px;
  border-top: 1px solid var(--mist-line);
  border-bottom: 1px solid var(--mist-line);
  background: var(--grad-night);
  isolation: isolate;
}

.page-faq .faq-console__bg {
  position: absolute;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  opacity: 0.16;
}

.page-faq .faq-console__bg img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: grayscale(1) contrast(1.15);
}

.page-faq .faq-console__inner {
  padding-top: 34px;
  padding-bottom: 30px;
}

.page-faq .faq-console h1 {
  margin: 12px 0 0;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(28px, 7vw, 50px);
  line-height: 1.08;
  letter-spacing: -0.02em;
  color: var(--scoreboard-white);
}

.page-faq .faq-console h1::after {
  content: "";
  display: block;
  width: 68px;
  height: 3px;
  margin-top: 16px;
  background: linear-gradient(90deg, var(--fluoro-cyan), var(--cyan-deep) 70%, transparent);
}

.page-faq .faq-console__lede {
  max-width: 64ch;
  margin: 16px 0 0;
  font-family: var(--font-editorial);
  font-size: 16px;
  line-height: 1.85;
  color: var(--chalk-gray);
}

.page-faq .faq-status {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1px;
  margin-top: 26px;
  border: 1px solid var(--mist-line);
  border-radius: 4px;
  background: var(--mist-line);
  overflow: hidden;
}

.page-faq .faq-status__cell {
  padding: 16px 16px 18px;
  background: linear-gradient(180deg, rgba(15, 30, 26, 0.96), rgba(6, 18, 14, 0.94));
}

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

.page-faq .faq-status__value {
  margin: 8px 0 6px;
  font-family: var(--font-mono);
  font-size: 22px;
  line-height: 1.25;
  letter-spacing: -0.01em;
  color: var(--fluoro-cyan);
}

.page-faq .faq-status__note {
  margin: 0;
  font-size: 13px;
  line-height: 1.75;
  color: var(--chalk-gray);
}

/* ---------- 分栏骨架 ---------- */

.page-faq .faq-body {
  padding-top: 30px;
  padding-bottom: 8px;
}

.page-faq .l-split {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 26px;
  align-items: start;
}

.page-faq .faq-rail {
  border: 1px solid var(--mist-line);
  border-radius: 4px;
  background: var(--stand-shadow);
  padding: 12px;
  box-shadow: 0 1px 0 rgba(0, 0, 0, 0.4);
}

.page-faq .faq-rail__title {
  margin: 0 0 10px;
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--chalk-gray);
}

.page-faq .faq-rail__list {
  display: flex;
  gap: 8px;
  margin: 0;
  padding: 0 0 2px;
  list-style: none;
  overflow-x: auto;
  scrollbar-width: thin;
  -webkit-overflow-scrolling: touch;
}

.page-faq .faq-rail__list li {
  flex: none;
}

.page-faq .faq-rail__list a {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 12px;
  padding: 9px 12px;
  border: 1px solid var(--mist-line);
  border-radius: 3px;
  background: rgba(6, 18, 14, 0.6);
  color: var(--chalk-gray);
  font-size: 13px;
  text-decoration: none;
  white-space: nowrap;
  transition: color 160ms var(--faq-ease), border-color 160ms var(--faq-ease), background 160ms var(--faq-ease);
}

.page-faq .faq-rail__list a .num {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--cyan-deep);
}

.page-faq .faq-rail__list a:hover,
.page-faq .faq-rail__list a:focus-visible {
  border-color: var(--fluoro-cyan);
  background: rgba(75, 242, 210, 0.07);
  color: var(--scoreboard-white);
}

.page-faq .faq-rail__list a:hover .num,
.page-faq .faq-rail__list a:focus-visible .num {
  color: var(--fluoro-cyan);
}

.page-faq a:focus-visible,
.page-faq summary:focus-visible {
  outline: 2px solid var(--fluoro-cyan);
  outline-offset: 2px;
  border-radius: 2px;
}

/* ---------- 问答分组 ---------- */

.page-faq .faq-group {
  scroll-margin-top: calc(var(--rail-offset) + 12px);
}

.page-faq .faq-group + .faq-group {
  margin-top: 34px;
  padding-top: 28px;
  border-top: 1px dashed var(--mist-line);
}

.page-faq .faq-group__head {
  margin-bottom: 14px;
}

.page-faq .faq-group__code {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--fluoro-cyan);
}

.page-faq .faq-group__title {
  margin: 6px 0 0;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(20px, 4.6vw, 28px);
  line-height: 1.2;
  letter-spacing: -0.01em;
  color: var(--scoreboard-white);
}

.page-faq .faq-group__note {
  max-width: 58ch;
  margin: 6px 0 0;
  font-size: 13.5px;
  line-height: 1.75;
  color: var(--chalk-gray);
}

.page-faq .faq-list {
  display: grid;
  gap: 8px;
}

.page-faq .faq-item {
  border: 1px solid var(--mist-line);
  border-radius: 4px;
  background: var(--stand-shadow);
  box-shadow: 0 1px 0 rgba(0, 0, 0, 0.35);
  transition: border-color 200ms var(--faq-ease), background 200ms var(--faq-ease);
}

.page-faq .faq-item[open] {
  border-color: rgba(75, 242, 210, 0.38);
  background: linear-gradient(180deg, rgba(12, 42, 33, 0.55), var(--stand-shadow) 78%);
}

.page-faq .faq-item__q {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  align-items: baseline;
  gap: 12px;
  padding: 14px 16px;
  cursor: pointer;
  list-style: none;
  color: var(--scoreboard-white);
  font-size: 14.5px;
  line-height: 1.6;
}

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

.page-faq .faq-item__q::after {
  content: "";
  align-self: center;
  width: 7px;
  height: 7px;
  border-right: 1.5px solid var(--cyan-deep);
  border-bottom: 1.5px solid var(--cyan-deep);
  transform: rotate(45deg) translate(-2px, -2px);
  transition: transform 200ms var(--faq-ease), border-color 200ms var(--faq-ease);
}

.page-faq .faq-item[open] .faq-item__q::after {
  border-color: var(--fluoro-cyan);
  transform: rotate(-135deg) translate(-2px, -2px);
}

.page-faq .faq-item__no {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--cyan-deep);
  transition: color 200ms var(--faq-ease);
}

.page-faq .faq-item[open] .faq-item__no {
  color: var(--fluoro-cyan);
}

.page-faq .faq-item__a {
  margin: 0;
  padding: 14px 16px 16px;
  border-top: 1px dashed var(--mist-line);
  color: var(--chalk-gray);
  font-size: 14px;
  line-height: 1.85;
}

.page-faq .faq-item__a .num {
  font-family: var(--font-mono);
  color: var(--scoreboard-white);
}

.page-faq .faq-item__a a,
.page-faq .faq-report__text a {
  color: var(--fluoro-cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(75, 242, 210, 0.36);
  transition: color 160ms var(--faq-ease), border-color 160ms var(--faq-ease);
}

.page-faq .faq-item__a a:hover,
.page-faq .faq-item__a a:focus-visible,
.page-faq .faq-report__text a:hover,
.page-faq .faq-report__text a:focus-visible {
  color: var(--scoreboard-white);
  border-bottom-color: var(--scoreboard-white);
}

/* ---------- 纠错说明 ---------- */

.page-faq .faq-report {
  margin-top: 44px;
  padding: 32px 0 52px;
  border-top: 1px solid var(--mist-line);
  background: linear-gradient(180deg, rgba(33, 23, 17, 0.55), rgba(6, 18, 14, 0) 68%);
}

.page-faq .faq-report__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 24px;
  align-items: start;
}

.page-faq .faq-report__text h2 {
  margin: 10px 0 0;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(21px, 4.8vw, 30px);
  line-height: 1.22;
  letter-spacing: -0.01em;
  color: var(--scoreboard-white);
}

.page-faq .faq-report__text > p {
  max-width: 62ch;
  margin: 14px 0 0;
  font-size: 14.5px;
  line-height: 1.85;
  color: var(--chalk-gray);
}

.page-faq .faq-report__meta {
  display: grid;
  gap: 1px;
  margin: 20px 0 0;
  border: 1px solid var(--mist-line);
  border-radius: 4px;
  background: var(--mist-line);
  overflow: hidden;
}

.page-faq .faq-report__meta > div {
  display: grid;
  grid-template-columns: 92px minmax(0, 1fr);
  gap: 12px;
  padding: 11px 14px;
  background: var(--stand-shadow);
}

.page-faq .faq-report__meta dt {
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--chalk-gray);
}

.page-faq .faq-report__meta dd {
  margin: 0;
  font-size: 14px;
  line-height: 1.6;
  color: var(--scoreboard-white);
  word-break: break-word;
}

.page-faq .faq-report__meta dd .num {
  font-family: var(--font-mono);
  color: var(--fluoro-cyan);
}

.page-faq .faq-report__aside {
  font-size: 13px !important;
  color: var(--chalk-gray);
}

.page-faq .faq-report__figure {
  margin: 0;
  border: 1px solid var(--mist-line);
  border-radius: 4px;
  background: var(--stand-shadow);
  overflow: hidden;
  box-shadow: 0 1px 0 rgba(0, 0, 0, 0.4);
}

.page-faq .faq-report__figure img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 3 / 2;
  object-fit: cover;
  filter: grayscale(0.4) contrast(1.06) brightness(0.92);
}

.page-faq .faq-report__figure figcaption {
  padding: 10px 14px 12px;
  border-top: 1px solid var(--mist-line);
  font-size: 12px;
  line-height: 1.7;
  color: var(--chalk-gray);
}

/* ---------- 响应式 ---------- */

@media (min-width: 720px) {
  .page-faq .faq-status {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-faq .faq-status__cell {
    padding: 20px 20px 22px;
  }

  .page-faq .faq-item__a {
    padding-left: 46px;
    padding-right: 20px;
  }

  .page-faq .faq-item__q {
    padding: 15px 20px;
  }
}

@media (min-width: 900px) {
  .page-faq .faq-report__grid {
    grid-template-columns: minmax(0, 1fr) 360px;
    gap: 40px;
  }
}

@media (min-width: 960px) {
  .page-faq .l-split {
    grid-template-columns: var(--faq-rail-w) minmax(0, 1fr);
    gap: 44px;
  }

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

  .page-faq .faq-rail__list {
    flex-direction: column;
    gap: 4px;
    overflow: visible;
  }

  .page-faq .faq-rail__list a {
    white-space: normal;
    border-color: transparent;
    background: transparent;
  }
}

@media (min-width: 1280px) {
  .page-faq {
    --faq-rail-w: 248px;
  }

  .page-faq .faq-report__grid {
    grid-template-columns: minmax(0, 1fr) 420px;
    gap: 56px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-item,
  .page-faq .faq-item__q::after,
  .page-faq .faq-item__no,
  .page-faq .faq-rail__list a,
  .page-faq .crumbs a,
  .page-faq .faq-item__a a,
  .page-faq .faq-report__text a {
    transition: none;
  }
}