.page-faq {
  --faq-rail-w: 272px;
  --faq-line: rgba(212, 175, 55, 0.26);
  --faq-line-soft: rgba(242, 228, 216, 0.1);
  color: var(--warm);
  font-family: var(--font-sans);
}

.page-faq *,
.page-faq *::before,
.page-faq *::after {
  box-sizing: border-box;
}

.page-faq img {
  max-width: 100%;
  height: auto;
}

.page-faq .faq-band {
  width: 100%;
  max-width: var(--shell);
  margin: 0 auto;
  padding-inline: var(--gutter);
}

/* ---------- 面包屑 ---------- */

.page-faq .breadcrumb {
  padding-top: clamp(20px, 3vw, 34px);
  font-size: 13px;
  line-height: 1.6;
  color: var(--cool);
}

.page-faq .breadcrumb a {
  color: var(--cool);
  text-decoration: none;
  transition: color 0.18s var(--ease);
}

.page-faq .breadcrumb a:hover,
.page-faq .breadcrumb a:focus-visible {
  color: var(--gold);
}

.page-faq .breadcrumb__sep {
  margin: 0 8px;
  color: var(--gold);
}

.page-faq .breadcrumb [aria-current="page"] {
  color: var(--warm-72);
}

/* ---------- 首屏 ---------- */

.page-faq .faq-hero {
  position: relative;
  overflow: hidden;
  background:
    radial-gradient(120% 92% at 90% -6%, rgba(177, 18, 38, 0.36), transparent 58%),
    radial-gradient(90% 70% at 4% 100%, rgba(31, 122, 140, 0.14), transparent 62%),
    var(--ink);
  border-bottom: 1px solid var(--faq-line);
  padding-bottom: clamp(40px, 6vw, 72px);
}

.page-faq .faq-hero__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 32px;
  padding-top: clamp(24px, 5vw, 52px);
}

.page-faq .exhibit-label {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--cool);
}

.page-faq .exhibit-num {
  margin-right: 12px;
  color: var(--gold);
}

.page-faq .faq-hero__title {
  margin: 16px 0 0;
  font-family: var(--font-sans);
  font-size: clamp(42px, 10vw, 88px);
  font-weight: 900;
  line-height: 1;
  letter-spacing: -0.02em;
  color: var(--warm);
}

.page-faq .faq-hero__title::after {
  content: "";
  display: block;
  width: clamp(64px, 14vw, 148px);
  height: 4px;
  margin-top: 22px;
  background: var(--red);
}

.page-faq .faq-hero__intro {
  margin: 26px 0 0;
  max-width: 62ch;
  font-size: clamp(15px, 1.7vw, 17px);
  line-height: 1.78;
  color: var(--warm-86);
}

.page-faq .faq-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 30px;
}

.page-faq .faq-hero__facts {
  margin: 0;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(130px, 1fr));
  gap: 1px;
  background: var(--faq-line);
  border: 1px solid var(--faq-line);
  align-self: end;
}

.page-faq .faq-hero__facts > div {
  background: var(--ink);
  padding: 16px 18px 18px;
}

.page-faq .faq-hero__facts dt {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--cool);
}

.page-faq .faq-hero__facts dd {
  margin: 8px 0 0;
  font-family: var(--font-mono);
  font-size: 24px;
  letter-spacing: 0.02em;
  color: var(--cyan-lift);
}

.page-faq .faq-hero__media {
  margin: clamp(34px, 5vw, 60px) 0 0;
  border: 1px solid var(--faq-line);
  background: linear-gradient(135deg, var(--ink-2), var(--ink-3) 70%);
  overflow: hidden;
  line-height: 0;
}

.page-faq .faq-hero__media img {
  display: block;
  width: 100%;
  aspect-ratio: 16 / 6;
  object-fit: cover;
}

/* ---------- 主布局 ---------- */

.page-faq .faq-shell {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 40px;
  padding-top: clamp(40px, 6vw, 80px);
}

/* ---------- 左侧索引地图 ---------- */

.page-faq .faq-rail {
  align-self: start;
  border-top: 2px solid var(--red);
  padding-top: 18px;
}

.page-faq .faq-rail__title {
  margin: 0 0 6px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--gold);
}

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

.page-faq .faq-rail__link {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  gap: 12px;
  align-items: baseline;
  padding: 13px 0;
  border-bottom: 1px solid var(--faq-line-soft);
  color: var(--warm-72);
  text-decoration: none;
  font-size: 14px;
  line-height: 1.5;
  transition: color 0.18s var(--ease), border-color 0.18s var(--ease);
}

.page-faq .faq-rail__num {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--gold);
}

.page-faq .faq-rail__count {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--cool);
}

.page-faq .faq-rail__link:hover,
.page-faq .faq-rail__link:focus-visible {
  color: var(--warm);
  border-bottom-color: var(--gold);
}

.page-faq .faq-rail__link.is-active {
  color: var(--warm);
  border-bottom-color: var(--gold);
}

.page-faq .faq-rail__link.is-active .faq-rail__num {
  color: var(--gold-light);
}

.page-faq .faq-rail__link.is-active .faq-rail__count {
  color: var(--cyan-lift);
}

.page-faq .faq-rail__figure {
  margin: 26px 0 0;
  border: 1px solid var(--faq-line-soft);
  overflow: hidden;
  line-height: 0;
}

.page-faq .faq-rail__figure img {
  display: block;
  width: 100%;
  object-fit: cover;
}

/* ---------- 问答流 ---------- */

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

.page-faq .faq-group {
  margin: 0 0 clamp(44px, 6vw, 76px) -18px;
  padding-left: 18px;
  border-left: 3px solid transparent;
  scroll-margin-top: calc(var(--header-h) + 32px);
  transition: border-color 0.3s var(--ease);
}

.page-faq .faq-group:target {
  border-left-color: var(--red);
}

.page-faq .faq-group__head {
  display: flex;
  align-items: baseline;
  gap: 14px;
  padding-bottom: 15px;
  border-bottom: 1px solid var(--faq-line);
}

.page-faq .faq-group__num {
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.08em;
  color: var(--gold);
}

.page-faq .faq-group__title {
  margin: 0;
  font-size: clamp(20px, 3vw, 28px);
  font-weight: 700;
  line-height: 1.25;
  letter-spacing: -0.01em;
  color: var(--warm);
}

.page-faq .faq-group__count {
  margin-left: auto;
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--cool);
  white-space: nowrap;
}

.page-faq .faq-item {
  border-bottom: 1px solid var(--faq-line-soft);
}

.page-faq .faq-item__q {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  padding: 18px 0;
  cursor: pointer;
  list-style: none;
  color: var(--warm);
  font-size: clamp(15px, 1.8vw, 17px);
  font-weight: 500;
  line-height: 1.6;
  transition: color 0.18s var(--ease);
}

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

.page-faq .faq-item__q:hover {
  color: var(--gold-light);
}

.page-faq .faq-item__q:focus-visible {
  outline: 1px solid var(--gold);
  outline-offset: 2px;
}

.page-faq .faq-item__idx {
  flex: none;
  padding-top: 3px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.04em;
  color: var(--cyan);
}

.page-faq .faq-item__q::after {
  content: "+";
  flex: none;
  margin-left: auto;
  padding-left: 12px;
  font-family: var(--font-mono);
  font-size: 17px;
  line-height: 1.5;
  color: var(--gold);
}

.page-faq .faq-item[open] .faq-item__q {
  color: var(--gold-light);
}

.page-faq .faq-item[open] .faq-item__q::after {
  content: "−";
}

.page-faq .faq-item__a {
  margin: 0 0 20px;
  padding-left: 30px;
  max-width: 64ch;
  font-size: 15px;
  line-height: 1.78;
  color: var(--warm-72);
}

.page-faq .faq-mark {
  border-bottom: 1px solid var(--gold);
  padding-bottom: 1px;
  color: var(--warm);
}

/* ---------- 下一步区块 ---------- */

.page-faq .faq-next {
  margin-top: clamp(48px, 7vw, 96px);
  padding: clamp(44px, 6vw, 80px) 0;
  background: linear-gradient(135deg, var(--ink-2), var(--ink) 72%);
  border-top: 2px solid var(--red);
  border-bottom: 1px solid var(--faq-line);
}

.page-faq .faq-next__inner {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 32px;
}

.page-faq .faq-next__title {
  margin: 16px 0 0;
  font-size: clamp(26px, 4.4vw, 44px);
  font-weight: 900;
  line-height: 1.15;
  letter-spacing: -0.02em;
  color: var(--warm);
}

.page-faq .faq-next__text {
  margin: 22px 0 0;
  max-width: 62ch;
  font-size: 16px;
  line-height: 1.78;
  color: var(--warm-86);
}

.page-faq .faq-next__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 30px;
}

.page-faq .faq-next__panel {
  border: 1px solid var(--faq-line);
  background: rgba(14, 14, 14, 0.62);
  padding: clamp(20px, 3vw, 30px);
}

.page-faq .faq-next__panel-label {
  margin: 0 0 8px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--cool);
}

.page-faq .faq-next__panel-label:not(:first-child) {
  margin-top: 26px;
}

.page-faq .faq-next__hours {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 20px;
  letter-spacing: 0.02em;
  color: var(--cyan-lift);
}

.page-faq .faq-copy {
  display: inline-block;
  max-width: 100%;
  padding: 11px 15px;
  border: 1px solid var(--faq-line);
  background: transparent;
  color: var(--warm);
  font-family: var(--font-mono);
  font-size: 14px;
  letter-spacing: 0.02em;
  line-height: 1.4;
  word-break: break-all;
  cursor: pointer;
  transition: border-color 0.18s var(--ease), color 0.18s var(--ease);
}

.page-faq .faq-copy:hover {
  border-color: var(--gold);
  color: var(--gold-light);
}

.page-faq .faq-copy:focus-visible {
  outline: 1px solid var(--gold);
  outline-offset: 2px;
}

.page-faq .faq-copy.is-copied {
  border-color: var(--cyan);
  color: var(--cyan-lift);
}

.page-faq .faq-next__note {
  margin: 26px 0 0;
  padding-top: 20px;
  border-top: 1px solid var(--faq-line-soft);
  font-size: 14px;
  line-height: 1.78;
  color: var(--cool);
}

.page-faq .sr-status {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip-path: inset(50%);
  white-space: nowrap;
}

/* ---------- 响应式 ---------- */

@media (min-width: 720px) {
  .page-faq .faq-hero__grid {
    grid-template-columns: minmax(0, 1.5fr) minmax(0, 1fr);
    gap: 48px;
    align-items: end;
  }

  .page-faq .faq-next__inner {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
    gap: 48px;
    align-items: start;
  }
}

@media (min-width: 1000px) {
  .page-faq .faq-shell {
    grid-template-columns: var(--faq-rail-w) minmax(0, 1fr);
    gap: clamp(44px, 5vw, 80px);
  }

  .page-faq .faq-rail {
    position: sticky;
    top: calc(var(--header-h) + 24px);
    max-height: calc(100vh - var(--header-h) - 48px);
    overflow-y: auto;
    scrollbar-width: thin;
  }

  .page-faq .faq-next__inner {
    gap: 64px;
  }
}

@media (max-width: 479px) {
  .page-faq .faq-item__a {
    padding-left: 0;
  }

  .page-faq .faq-group {
    margin-left: 0;
    padding-left: 0;
  }

  .page-faq .faq-group__head {
    flex-wrap: wrap;
    gap: 8px 12px;
  }

  .page-faq .faq-group__count {
    margin-left: 0;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-group,
  .page-faq .faq-item__q,
  .page-faq .faq-rail__link,
  .page-faq .faq-copy {
    transition: none;
  }
}