.page-faq {
  --faq-line: 1px solid rgba(30, 90, 71, 0.42);
  --faq-line-gold: 1px solid rgba(184, 137, 43, 0.34);
  --faq-cut: 16px;
}

/* ---------- 面包屑间距 ---------- */
.page-faq .breadcrumb {
  padding-block: 18px 6px;
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  padding-block: var(--space-m) var(--space-l);
  position: relative;
  overflow: hidden;
}

.page-faq .faq-hero::after {
  content: "";
  position: absolute;
  inset: auto -10% -40% 55%;
  height: 60%;
  background: radial-gradient(closest-side, rgba(184, 137, 43, 0.16), transparent 70%);
  pointer-events: none;
}

.page-faq .faq-hero__grid {
  display: grid;
  gap: var(--gap);
  align-items: start;
  position: relative;
  z-index: 1;
}

.page-faq .faq-hero__title {
  margin: 10px 0 0;
  font-family: var(--font-display);
  font-weight: 300;
  font-size: clamp(2rem, 6.2vw, 4.2rem);
  line-height: 1.12;
  letter-spacing: -0.02em;
  color: var(--ivory-050);
}

.page-faq .faq-hero__lede {
  margin: 18px 0 0;
  max-width: 40ch;
  font-size: var(--body-fluid);
  line-height: 1.85;
  color: rgba(244, 239, 228, 0.82);
}

.page-faq .faq-stats {
  list-style: none;
  margin: 30px 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px 18px;
}

.page-faq .faq-stat {
  padding-top: 12px;
  border-top: var(--faq-line-gold);
}

.page-faq .faq-stat__value {
  display: block;
  font-family: var(--font-mono);
  font-weight: 500;
  font-size: clamp(1.3rem, 2.4vw, 1.7rem);
  color: var(--gold-300);
  letter-spacing: 0.02em;
}

.page-faq .faq-stat__value--date {
  font-size: clamp(1rem, 1.6vw, 1.2rem);
  color: var(--gold-600);
}

.page-faq .faq-stat__label {
  display: block;
  margin-top: 4px;
  font-size: 0.8rem;
  letter-spacing: 0.06em;
  color: var(--sage-500);
}

/* 检索条 */
.page-faq .faq-search {
  margin-top: 32px;
  padding: 18px 20px 20px;
  background: rgba(6, 18, 15, 0.55);
  border: var(--faq-line-gold);
  clip-path: polygon(
    var(--faq-cut) 0,
    100% 0,
    100% calc(100% - var(--faq-cut)),
    calc(100% - var(--faq-cut)) 100%,
    0 100%,
    0 var(--faq-cut)
  );
}

.page-faq .faq-search__label {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--gold-600);
}

.page-faq .faq-search__input {
  display: block;
  width: 100%;
  margin-top: 8px;
  padding: 10px 0;
  border: 0;
  border-bottom: 1px solid rgba(184, 137, 43, 0.5);
  background: transparent;
  color: var(--ivory-050);
  font-family: var(--font-body);
  font-size: 1.05rem;
  line-height: 1.6;
}

.page-faq .faq-search__input::placeholder {
  color: rgba(110, 131, 119, 0.9);
}

.page-faq .faq-search__input:focus {
  outline: none;
  border-bottom-color: var(--gold-300);
}

.page-faq .faq-search__hint {
  margin: 12px 0 0;
  font-size: 0.82rem;
  line-height: 1.75;
  color: var(--sage-500);
}

.page-faq .faq-search__hint .mono-num {
  color: var(--blue-400);
}

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

/* ---------- 媒体框通用（页面内局部约束） ---------- */
.page-faq .media-frame {
  margin: 0;
  overflow: hidden;
}

.page-faq .media-frame__inner {
  display: block;
  width: 100%;
  height: 100%;
}

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

.page-faq .media-frame__caption {
  margin-top: 10px;
  font-size: 0.78rem;
  line-height: 1.7;
  color: var(--sage-500);
}

/* ---------- 目录 + 问答 ---------- */
.page-faq .faq-body {
  margin-top: var(--space-m);
  row-gap: var(--space-m);
}

.page-faq .faq-index__title {
  margin: 0 0 14px;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--gold-600);
}

.page-faq .faq-index__nav {
  display: grid;
  gap: 0;
}

.page-faq .faq-index__link {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 2px 12px;
  padding: 14px 12px 14px 14px;
  border-left: 2px solid transparent;
  border-bottom: var(--faq-line);
  text-decoration: none;
  color: var(--ink-900);
  transition: border-color 160ms var(--ease), background-color 160ms var(--ease);
}

.page-faq .faq-index__link:hover,
.page-faq .faq-index__link:focus-visible {
  border-left-color: var(--gold-600);
  background: rgba(184, 137, 43, 0.08);
}

.page-faq .faq-index__num {
  grid-row: span 2;
  align-self: start;
  font-family: var(--font-mono);
  font-size: 1.1rem;
  color: var(--gold-600);
}

.page-faq .faq-index__name {
  font-weight: 600;
  font-size: 1rem;
  line-height: 1.4;
}

.page-faq .faq-index__sample {
  font-size: 0.8rem;
  line-height: 1.65;
  color: var(--sage-500);
}

.page-faq .faq-cat + .faq-cat {
  margin-top: 44px;
}

.page-faq .faq-cat__head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 12px;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--gold-600);
}

.page-faq .faq-cat__title {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 500;
  font-size: clamp(1.1rem, 2.2vw, 1.4rem);
  letter-spacing: 0.01em;
  color: var(--ink-900);
}

.page-faq .faq-cat__count {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.08em;
  color: var(--sage-500);
  white-space: nowrap;
}

/* 折叠条目 */
.page-faq .faq-item {
  border-bottom: var(--faq-line);
}

.page-faq .faq-item > summary {
  list-style: none;
  cursor: pointer;
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  gap: 12px;
  align-items: start;
  padding: 18px 0 18px 0;
  transition: color 160ms var(--ease);
}

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

.page-faq .faq-item > summary:hover .faq-item__q,
.page-faq .faq-item > summary:focus-visible .faq-item__q {
  color: var(--gold-600);
}

.page-faq .faq-item__index {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.06em;
  color: var(--sage-500);
  padding-top: 4px;
  white-space: nowrap;
}

.page-faq .faq-item__q {
  font-size: 1rem;
  line-height: 1.65;
  font-weight: 600;
  color: var(--ink-900);
  transition: color 160ms var(--ease);
}

.page-faq .faq-item__mark {
  position: relative;
  width: 14px;
  height: 14px;
  margin-top: 6px;
  flex: none;
}

.page-faq .faq-item__mark::before,
.page-faq .faq-item__mark::after {
  content: "";
  position: absolute;
  background: var(--gold-600);
  transition: transform 220ms var(--ease);
}

.page-faq .faq-item__mark::before {
  left: 0;
  top: 6px;
  width: 14px;
  height: 1px;
}

.page-faq .faq-item__mark::after {
  top: 0;
  left: 6px;
  width: 1px;
  height: 14px;
}

.page-faq .faq-item[open] .faq-item__mark::after {
  transform: scaleY(0);
}

.page-faq .faq-item__body {
  padding: 0 0 20px;
}

.page-faq .faq-item[open] .faq-item__body {
  border-left: 2px solid var(--red-600);
  padding-left: 16px;
}

.page-faq .faq-item__body p {
  margin: 0;
  max-width: 46ch;
  font-size: 0.95rem;
  line-height: 1.85;
  color: rgba(10, 43, 34, 0.86);
}

.page-faq .faq-item__coord {
  margin-top: 12px !important;
  font-family: var(--font-mono);
  font-size: 0.74rem !important;
  letter-spacing: 0.04em;
  color: var(--sage-500) !important;
}

.page-faq .faq-item__coord .mono-index {
  color: var(--red-600);
  margin-right: 8px;
}

/* ---------- 版本号定位 ---------- */
.page-faq .faq-version__grid {
  margin-top: var(--space-m);
  display: grid;
  gap: var(--gap);
  align-items: start;
}

.page-faq .faq-version__table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.9rem;
}

.page-faq .faq-version__table caption {
  text-align: left;
  padding-bottom: 10px;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--gold-600);
}

.page-faq .faq-version__table th,
.page-faq .faq-version__table td {
  text-align: left;
  padding: 12px 10px;
  border-bottom: var(--faq-line);
  vertical-align: top;
}

.page-faq .faq-version__table th {
  font-weight: 600;
  font-size: 0.8rem;
  letter-spacing: 0.06em;
  color: rgba(244, 239, 228, 0.72);
}

.page-faq .faq-version__table td {
  color: rgba(244, 239, 228, 0.88);
  line-height: 1.7;
}

.page-faq .faq-version__table .mono-num {
  font-family: var(--font-mono);
  color: var(--gold-300);
  white-space: nowrap;
}

.page-faq .faq-steps {
  list-style: none;
  margin: 30px 0 0;
  padding: 0;
  display: grid;
  gap: 16px;
}

.page-faq .faq-steps__item {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 14px;
  align-items: start;
  padding-top: 14px;
  border-top: var(--faq-line-gold);
}

.page-faq .faq-steps__index {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--blue-400);
  padding-top: 3px;
}

.page-faq .faq-steps__text {
  margin: 0;
  font-size: 0.95rem;
  line-height: 1.8;
  color: rgba(244, 239, 228, 0.85);
}

.page-faq .faq-steps__text .mono-num {
  font-family: var(--font-mono);
  color: var(--gold-300);
}

.page-faq .faq-copy {
  margin-top: 28px;
  padding: 16px 18px;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px 16px;
  border: var(--faq-line-gold);
  background: rgba(184, 137, 43, 0.08);
}

.page-faq .faq-copy__code {
  font-family: var(--font-mono);
  font-size: 1.05rem;
  letter-spacing: 0.06em;
  color: var(--gold-300);
}

.page-faq .faq-copy__note {
  font-size: 0.78rem;
  line-height: 1.7;
  color: var(--sage-500);
}

.page-faq .copy-btn[data-copied]::after {
  content: "已复制";
  margin-left: 8px;
  font-size: 0.74rem;
  color: var(--green-400);
}

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

/* ---------- 更新记录 ---------- */
.page-faq .faq-log {
  list-style: none;
  margin: var(--space-m) 0 0;
  padding: 0 0 0 24px;
  border-left: 1px solid rgba(184, 137, 43, 0.38);
}

.page-faq .faq-log__item {
  position: relative;
  padding-bottom: 30px;
}

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

.page-faq .faq-log__item::before {
  content: "";
  position: absolute;
  left: -29px;
  top: 7px;
  width: 9px;
  height: 9px;
  background: var(--ivory-050);
  border: 1px solid var(--gold-600);
  transform: rotate(45deg);
}

.page-faq .faq-log__item--now::before {
  background: var(--red-600);
  border-color: var(--red-600);
}

.page-faq .faq-log__tag {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 0.74rem;
  letter-spacing: 0.1em;
  color: var(--sage-500);
}

.page-faq .faq-log__item--now .faq-log__tag {
  color: var(--red-600);
}

.page-faq .faq-log__title {
  margin: 6px 0 8px;
  font-family: var(--font-display);
  font-weight: 500;
  font-size: clamp(1rem, 2vw, 1.25rem);
  color: var(--ink-900);
}

.page-faq .faq-log__text {
  margin: 0;
  max-width: 52ch;
  font-size: 0.92rem;
  line-height: 1.85;
  color: rgba(10, 43, 34, 0.78);
}

/* ---------- 联系与延伸 ---------- */
.page-faq .faq-support__grid {
  margin-top: var(--space-s);
  row-gap: var(--space-s);
}

.page-faq .faq-support__callout {
  padding: 20px 22px;
  border-left: 2px solid var(--red-600);
  background: rgba(18, 59, 47, 0.55);
}

.page-faq .faq-support__callout p {
  margin: 0;
  max-width: 46ch;
  font-size: 0.95rem;
  line-height: 1.85;
  color: rgba(244, 239, 228, 0.84);
}

.page-faq .faq-support__btn {
  margin-top: 22px;
  display: inline-block;
}

.page-faq .faq-related__title {
  margin: 0 0 14px;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--gold-600);
}

.page-faq .faq-related__list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-faq .faq-related__item {
  border-bottom: var(--faq-line-gold);
}

.page-faq .faq-related__link {
  display: block;
  padding: 12px 0;
  font-size: 0.9rem;
  line-height: 1.7;
  color: rgba(244, 239, 228, 0.85);
  text-decoration: none;
  transition: color 160ms var(--ease), padding-left 160ms var(--ease);
}

.page-faq .faq-related__link:hover,
.page-faq .faq-related__link:focus-visible {
  color: var(--gold-300);
  padding-left: 8px;
}

/* ---------- 响应式 ---------- */
@media (min-width: 640px) {
  .page-faq .faq-stats {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

@media (min-width: 900px) {
  .page-faq .faq-hero__grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    gap: clamp(32px, 4.4vw, 72px);
  }

  .page-faq .faq-hero__figure {
    margin-top: 16px;
  }

  .page-faq .faq-version__grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    gap: clamp(32px, 4vw, 64px);
  }

  .page-faq .faq-index {
    position: sticky;
    top: 104px;
    align-self: start;
  }
}

@media (min-width: 1200px) {
  .page-faq .faq-hero__lede {
    font-size: 1.05rem;
  }

  .page-faq .faq-item__q {
    font-size: 1.06rem;
  }
}

@media (max-width: 899px) {
  .page-faq .faq-index__nav {
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 0 18px;
  }

  .page-faq .faq-index__link {
    min-width: 0;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-index__link,
  .page-faq .faq-item > summary,
  .page-faq .faq-item__q,
  .page-faq .faq-item__mark::before,
  .page-faq .faq-item__mark::after,
  .page-faq .faq-related__link {
    transition: none;
  }
}