.page-disclaimer {
  position: relative;
  display: block;
  max-width: var(--shell-max);
  margin: 0 auto;
  padding: clamp(1.75rem, 5vw, 3.5rem) var(--gutter) clamp(3rem, 8vw, 5.5rem);
  font-family: var(--font-body);
  font-size: 1rem;
  line-height: 1.75;
  color: var(--c-mute);
  background: var(--c-ink);
  overflow-x: hidden;
}

.page-disclaimer::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: min(560px, 90vw);
  height: 340px;
  background: radial-gradient(ellipse at top left, var(--glow-royal), transparent 70%);
  pointer-events: none;
  z-index: 0;
}

.page-disclaimer > * {
  position: relative;
  z-index: 1;
}

/* ---------- 面包屑 ---------- */
.page-disclaimer .breadcrumb {
  margin-bottom: clamp(1.5rem, 4vw, 2.25rem);
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.page-disclaimer .breadcrumb ol {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.4rem 0.5rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-disclaimer .breadcrumb li {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  color: var(--c-mute);
}

.page-disclaimer .breadcrumb li + li::before {
  content: "/";
  color: var(--c-gold);
  opacity: 0.55;
}

.page-disclaimer .breadcrumb a {
  color: var(--c-ice);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: border-color var(--dur) var(--ease), color var(--dur) var(--ease);
}

.page-disclaimer .breadcrumb a:hover,
.page-disclaimer .breadcrumb a:focus-visible {
  color: var(--c-gold-lite);
  border-bottom-color: var(--c-gold);
}

/* ---------- 页头 ---------- */
.page-disclaimer .notice-head {
  padding-left: clamp(0.9rem, 2.4vw, 1.5rem);
  border-left: 3px solid var(--c-gold);
  margin-bottom: clamp(2rem, 5vw, 3rem);
}

.page-disclaimer .notice-head h1 {
  margin: 0.35em 0 0.45em;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(2.1rem, 7vw, 4rem);
  line-height: 1.08;
  letter-spacing: -0.015em;
  color: var(--c-cream);
}

.page-disclaimer .notice-head .lede {
  max-width: 58ch;
  margin: 0;
  font-size: clamp(0.95rem, 1.5vw, 1.0625rem);
  line-height: 1.8;
  color: var(--c-mute);
}

/* ---------- 页头氛围图 ---------- */
.page-disclaimer .notice-figure {
  margin: 0 0 clamp(2.25rem, 6vw, 3.5rem);
}

.page-disclaimer .media-frame {
  position: relative;
  display: block;
  aspect-ratio: 16 / 9;
  overflow: hidden;
  background: var(--c-night);
  border: 1px solid var(--line-gold);
  border-left: 3px solid var(--c-gold);
}

.page-disclaimer .media-frame > img {
  position: static;
  display: block;
  width: 100%;
  height: 100%;
  max-width: 100%;
  object-fit: cover;
}

.page-disclaimer .media-frame__caption {
  margin-top: 0.65rem;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  line-height: 1.6;
  letter-spacing: 0.02em;
  color: var(--c-mute);
}

/* ---------- 条款列表 ---------- */
.page-disclaimer .clauses {
  display: flex;
  flex-direction: column;
  gap: 0.65rem;
}

.page-disclaimer .clause {
  position: relative;
  background: var(--c-night);
  border-left: 3px solid var(--c-wine);
  transition: border-left-color var(--dur) var(--ease);
}

.page-disclaimer .clause[open] {
  border-left-color: var(--c-gold);
}

.page-disclaimer .clause::after {
  content: "";
  position: absolute;
  right: 0;
  bottom: 0;
  width: 16px;
  height: 16px;
  background: linear-gradient(135deg, transparent 50%, var(--c-gold) 50%);
  opacity: 0.4;
  pointer-events: none;
}

.page-disclaimer summary {
  list-style: none;
  cursor: pointer;
}

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

.page-disclaimer .clause-bar {
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: baseline;
  gap: 0.7rem;
  padding: 0.8rem 1rem;
  background: linear-gradient(90deg, var(--c-royal-deep) 0%, rgba(26, 14, 42, 0) 92%);
}

.page-disclaimer .clause-bar:focus-visible {
  outline: 2px solid var(--c-gold);
  outline-offset: -2px;
}

.page-disclaimer .clause-num {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  color: var(--c-gold-lite);
  padding-top: 0.15em;
}

.page-disclaimer .clause-title {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.0625rem;
  line-height: 1.35;
  letter-spacing: 0;
  color: var(--c-cream);
}

.page-disclaimer .chev {
  align-self: center;
  width: 9px;
  height: 9px;
  border-right: 2px solid var(--c-gold);
  border-bottom: 2px solid var(--c-gold);
  transform: rotate(45deg);
  transition: transform var(--dur) var(--ease);
}

.page-disclaimer .clause[open] .chev {
  transform: rotate(-135deg);
}

.page-disclaimer .clause-body {
  padding: 0.55rem 1rem 1.15rem;
  font-size: 0.9375rem;
  line-height: 1.85;
  color: var(--c-mute);
  border-top: 1px solid var(--line-soft);
}

.page-disclaimer .clause-body p {
  margin: 0.55rem 0 0;
  max-width: 68ch;
}

.page-disclaimer .clause-body p:first-child {
  margin-top: 0.35rem;
}

.page-disclaimer .clause-body a {
  color: var(--c-ice);
  text-decoration: none;
  border-bottom: 1px solid rgba(126, 200, 227, 0.45);
  transition: color var(--dur) var(--ease), border-color var(--dur) var(--ease);
}

.page-disclaimer .clause-body a:hover,
.page-disclaimer .clause-body a:focus-visible {
  color: var(--c-gold-lite);
  border-bottom-color: var(--c-gold);
}

.page-disclaimer .clause-body ul {
  margin: 0.7rem 0 0;
  padding: 0;
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.45rem;
  max-width: 68ch;
}

.page-disclaimer .clause-body li {
  position: relative;
  padding-left: 1.15rem;
}

.page-disclaimer .clause-body li::before {
  content: "";
  position: absolute;
  left: 0.2rem;
  top: 0.72em;
  width: 5px;
  height: 5px;
  background: var(--c-ice);
  transform: rotate(45deg);
}

/* ---------- 联系方式 ---------- */
.page-disclaimer .contact-line {
  display: flex;
  flex-wrap: wrap;
  gap: 0.2rem 0.75rem;
  align-items: baseline;
  margin-top: 0.7rem;
  padding: 0.55rem 0.85rem;
  background: rgba(91, 42, 134, 0.2);
  border-left: 2px solid var(--c-gold);
}

.page-disclaimer .contact-k {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.08em;
  color: var(--c-gold-lite);
  min-width: 4.6em;
}

.page-disclaimer .contact-v {
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  color: var(--c-cream);
  word-break: break-all;
}

.page-disclaimer .contact-note {
  margin-top: 0.85rem;
  font-size: 0.8125rem;
  line-height: 1.7;
  color: var(--c-mute);
}

/* ---------- 变更记录 ---------- */
.page-disclaimer .revision {
  margin-top: clamp(2.5rem, 6vw, 4rem);
  padding-top: clamp(1.5rem, 4vw, 2.25rem);
  border-top: 1px solid var(--line-gold);
}

.page-disclaimer .revision-title {
  margin: 0 0 0.6rem;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(1.35rem, 3vw, 1.75rem);
  line-height: 1.25;
  color: var(--c-cream);
}

.page-disclaimer .revision-intro {
  margin: 0 0 1.15rem;
  max-width: 60ch;
  font-size: 0.875rem;
  line-height: 1.75;
  color: var(--c-mute);
}

.page-disclaimer .rev-list {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0.5rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-disclaimer .rev-item {
  position: relative;
  display: grid;
  grid-template-columns: 1fr;
  gap: 0.2rem;
  padding: 0.6rem 0.85rem 0.6rem 1rem;
  background: rgba(26, 14, 42, 0.75);
  border-left: 2px solid var(--c-royal);
  transition: border-left-color var(--dur) var(--ease),
              background-color var(--dur) var(--ease),
              transform var(--dur) var(--ease);
}

.page-disclaimer .rev-item:hover,
.page-disclaimer .rev-item:focus-visible {
  border-left-color: var(--c-gold);
  background: rgba(91, 42, 134, 0.28);
  transform: translateX(3px);
  outline: none;
}

.page-disclaimer .rev-version {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.06em;
  color: var(--c-gold-lite);
}

.page-disclaimer .rev-digest {
  font-size: 0.8125rem;
  line-height: 1.65;
  color: var(--c-mute);
  transition: color var(--dur) var(--ease);
}

.page-disclaimer .rev-item:hover .rev-digest,
.page-disclaimer .rev-item:focus-visible .rev-digest {
  color: var(--c-cream);
}

.page-disclaimer .revision-foot {
  margin: 1.35rem 0 0;
  max-width: 64ch;
  font-size: 0.875rem;
  line-height: 1.8;
  color: var(--c-mute);
}

.page-disclaimer .revision-foot a {
  color: var(--c-ice);
  text-decoration: none;
  border-bottom: 1px solid rgba(126, 200, 227, 0.45);
  transition: color var(--dur) var(--ease), border-color var(--dur) var(--ease);
}

.page-disclaimer .revision-foot a:hover,
.page-disclaimer .revision-foot a:focus-visible {
  color: var(--c-gold-lite);
  border-bottom-color: var(--c-gold);
}

/* ---------- 响应式 ---------- */
@media (min-width: 720px) {
  .page-disclaimer .clause-bar {
    gap: 1rem;
    padding: 0.95rem 1.4rem;
  }

  .page-disclaimer .clause-title {
    font-size: 1.15rem;
  }

  .page-disclaimer .clause-body {
    padding: 0.65rem 1.4rem 1.4rem;
    font-size: 1rem;
  }

  .page-disclaimer .contact-line {
    display: grid;
    grid-template-columns: 6em 1fr;
    gap: 0.15rem 1rem;
  }

  .page-disclaimer .rev-list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 1024px) {
  .page-disclaimer .rev-list {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-disclaimer .notice-figure {
    margin-bottom: clamp(3rem, 5vw, 4.25rem);
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-disclaimer .chev,
  .page-disclaimer .rev-item,
  .page-disclaimer .rev-digest {
    transition: none;
  }

  .page-disclaimer .rev-item:hover,
  .page-disclaimer .rev-item:focus-visible {
    transform: none;
  }
}