.page-disclaimer {
  --disc-measure: 44rem;
  --disc-gap: clamp(34px, 6vw, 62px);
  background: var(--night);
}

/* ---------- 跑道线条视觉锚点 ---------- */
.page-disclaimer .disc-runway {
  height: clamp(64px, 9vw, 108px);
  overflow: hidden;
  border-bottom: 1px solid var(--line);
  background: var(--night);
}

.page-disclaimer .disc-runway svg {
  display: block;
  width: 100%;
  height: 100%;
}

.page-disclaimer .disc-runway line {
  stroke: var(--line);
  stroke-width: 1.4;
  transition: transform 180ms ease-out, stroke 180ms ease-out;
}

.page-disclaimer .disc-runway line:nth-child(1) {
  stroke: var(--neon);
  opacity: .55;
}

.page-disclaimer .disc-runway line:nth-child(2) {
  stroke: var(--line);
  opacity: 1;
}

.page-disclaimer .disc-runway line:nth-child(3) {
  stroke: var(--data);
  opacity: .3;
}

.page-disclaimer .disc-runway:hover line:nth-child(1),
.page-disclaimer .disc-runway:focus-within line:nth-child(1) {
  transform: translateX(16px);
}

.page-disclaimer .disc-runway:hover line:nth-child(2),
.page-disclaimer .disc-runway:focus-within line:nth-child(2) {
  transform: translateX(-12px);
}

.page-disclaimer .disc-runway:hover line:nth-child(3),
.page-disclaimer .disc-runway:focus-within line:nth-child(3) {
  transform: translateX(22px);
}

/* ---------- 首屏 ---------- */
.page-disclaimer .disc-hero {
  position: relative;
  background:
    radial-gradient(120% 88% at 84% 6%, rgba(168, 255, 62, .09), transparent 62%),
    var(--night);
  overflow: hidden;
}

.page-disclaimer .disc-hero__inner {
  width: min(var(--maxw), 100% - var(--gutter) * 2);
  margin-inline: auto;
  padding-block: clamp(22px, 4vw, 44px) clamp(22px, 4vw, 40px);
  display: grid;
  gap: clamp(12px, 2vw, 20px);
}

.page-disclaimer .disc-hero__inner .breadcrumb {
  font-size: var(--step-1);
  color: var(--muted);
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  align-items: center;
}

.page-disclaimer .disc-hero__inner .breadcrumb a {
  color: var(--muted);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color 160ms ease-out, border-color 160ms ease-out;
}

.page-disclaimer .disc-hero__inner .breadcrumb a:hover,
.page-disclaimer .disc-hero__inner .breadcrumb a:focus-visible {
  color: var(--neon);
  border-bottom-color: var(--neon);
}

.page-disclaimer .disc-hero__kicker {
  margin: 0;
  font-size: var(--step-1);
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--amber);
}

.page-disclaimer .disc-hero__title {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(34px, 7.4vw, var(--step-7));
  line-height: 1.06;
  letter-spacing: -0.03em;
  color: var(--ink);
  max-width: 22ch;
}

.page-disclaimer .disc-hero__lede {
  margin: 0;
  max-width: 34em;
  font-size: clamp(16px, 1.7vw, var(--step-4));
  line-height: 1.8;
  color: var(--muted);
}

.page-disclaimer .disc-hero__toc {
  list-style: none;
  margin: clamp(6px, 1.6vw, 14px) 0 0;
  padding: 0;
  display: grid;
  gap: 10px;
}

.page-disclaimer .disc-hero__toc li {
  display: flex;
  align-items: baseline;
  gap: 12px;
  padding: 11px 16px;
  border: 1px solid var(--line);
  border-radius: var(--r-pill);
  background: var(--stand);
  font-size: var(--step-2);
  color: var(--ink);
}

.page-disclaimer .disc-hero__toc .mono {
  color: var(--neon);
  font-size: var(--step-1);
  letter-spacing: .08em;
  flex: none;
}

.page-disclaimer .disc-hero__media {
  width: min(var(--maxw), 100% - var(--gutter) * 2);
  margin: 0 auto clamp(30px, 5vw, 56px);
}

.page-disclaimer .disc-hero__media img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  aspect-ratio: 7 / 3;
  object-fit: cover;
  border-radius: var(--r-lg);
  border: 1px solid var(--line);
  filter: saturate(.7) contrast(1.05);
}

/* ---------- 正文 ---------- */
.page-disclaimer .disc-body {
  padding-block: clamp(28px, 5vw, 56px) clamp(46px, 8vw, 96px);
  background: linear-gradient(180deg, var(--night) 0%, var(--stand) 46%, var(--night) 100%);
}

.page-disclaimer .disc-body__inner {
  width: min(var(--disc-measure), 100% - var(--gutter) * 2);
  margin-inline: auto;
  display: grid;
  gap: var(--disc-gap);
}

.page-disclaimer .disc-sec {
  scroll-margin-top: 84px;
}

.page-disclaimer .disc-sec__head {
  position: sticky;
  top: 0;
  z-index: 2;
  display: flex;
  align-items: baseline;
  gap: 12px;
  padding: 12px 0 10px;
  background: var(--night);
  border-bottom: 1px solid var(--line);
}

.page-disclaimer .disc-sec__num {
  font-size: var(--step-3);
  letter-spacing: .1em;
  color: var(--neon);
  flex: none;
}

.page-disclaimer .disc-sec__dash {
  flex: none;
  width: 26px;
  height: 2px;
  align-self: center;
  background: var(--line);
  border-radius: 2px;
}

.page-disclaimer .disc-sec__title {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(19px, 3.1vw, var(--step-5));
  line-height: 1.25;
  letter-spacing: -0.02em;
  color: var(--ink);
}

.page-disclaimer .disc-sec__body {
  padding-top: clamp(16px, 2.6vw, 24px);
  display: grid;
  gap: 16px;
}

.page-disclaimer .disc-sec__body p {
  margin: 0;
  max-width: 34em;
  font-size: var(--step-3);
  line-height: 1.85;
  color: var(--ink);
}

.page-disclaimer .disc-sec__body a.link-underline {
  color: var(--data);
  text-decoration: none;
  border-bottom: 1px solid rgba(79, 179, 255, .45);
  transition: color 160ms ease-out, border-color 160ms ease-out;
}

.page-disclaimer .disc-sec__body a.link-underline:hover,
.page-disclaimer .disc-sec__body a.link-underline:focus-visible {
  color: var(--neon);
  border-bottom-color: var(--neon);
}

/* 列表 */
.page-disclaimer .disc-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 13px;
  max-width: 36em;
}

.page-disclaimer .disc-list li {
  position: relative;
  padding-left: 22px;
  font-size: var(--step-3);
  line-height: 1.82;
  color: var(--ink);
}

.page-disclaimer .disc-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .82em;
  width: 10px;
  height: 2px;
  border-radius: 2px;
  background: var(--neon);
}

.page-disclaimer .disc-list li strong {
  color: var(--ink);
  font-weight: 900;
  letter-spacing: -0.01em;
}

.page-disclaimer .disc-list li .mono {
  color: var(--data);
  font-family: var(--font-mono);
  font-size: var(--step-2);
  letter-spacing: .02em;
  word-break: break-all;
}

/* 关键约束句 */
.page-disclaimer .disc-note {
  margin: 4px 0 0;
  padding: 6px 0 6px 16px;
  border-left: 2px solid var(--amber);
  max-width: 34em;
  font-size: var(--step-3);
  line-height: 1.82;
  color: var(--ink);
}

/* 数据说明表 */
.page-disclaimer .disc-kv {
  margin: 4px 0 0;
  display: grid;
  gap: 0;
  border-top: 1px solid var(--line);
}

.page-disclaimer .disc-kv__row {
  display: grid;
  gap: 6px;
  padding: 14px 0;
  border-bottom: 1px solid var(--line);
}

.page-disclaimer .disc-kv dt {
  font-family: var(--font-mono);
  font-size: var(--step-1);
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--data);
}

.page-disclaimer .disc-kv dd {
  margin: 0;
  font-size: var(--step-3);
  line-height: 1.75;
  color: var(--ink);
}

/* 版本说明小字 */
.page-disclaimer .disc-stamp {
  margin: 0;
  padding-top: 18px;
  border-top: 1px dashed var(--line);
  font-size: var(--step-1);
  letter-spacing: .1em;
  color: var(--muted);
}

/* 返回顶部 */
.page-disclaimer .disc-top {
  position: fixed;
  right: clamp(14px, 3vw, 32px);
  bottom: clamp(88px, 13vh, 108px);
  z-index: 4;
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 9px 16px;
  border-radius: var(--r-pill);
  border: 1px solid var(--line);
  background: rgba(17, 26, 32, .88);
  color: var(--muted);
  font-size: var(--step-1);
  letter-spacing: .04em;
  text-decoration: none;
  backdrop-filter: blur(8px);
  transition: color 160ms ease-out, border-color 160ms ease-out, background-color 160ms ease-out;
}

.page-disclaimer .disc-top:hover,
.page-disclaimer .disc-top:focus-visible {
  color: var(--neon);
  border-color: var(--neon);
  background: rgba(7, 11, 14, .94);
}

/* ---------- 响应式 ---------- */
@media (max-width: 520px) {
  .page-disclaimer .disc-hero__inner {
    gap: 14px;
  }

  .page-disclaimer .disc-hero__toc li {
    border-radius: var(--r-md);
    align-items: flex-start;
    flex-direction: column;
    gap: 3px;
  }

  .page-disclaimer .disc-hero__media img {
    aspect-ratio: 4 / 3;
    border-radius: var(--r-md);
  }

  .page-disclaimer .disc-sec__head {
    flex-wrap: wrap;
    gap: 9px;
  }

  .page-disclaimer .disc-sec__dash {
    display: none;
  }

  .page-disclaimer .disc-top {
    right: 12px;
    bottom: 96px;
    padding: 8px 13px;
  }
}

@media (min-width: 860px) {
  .page-disclaimer .disc-hero__toc {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-disclaimer .disc-hero__toc li {
    min-height: 48px;
  }

  .page-disclaimer .disc-kv__row {
    grid-template-columns: 9rem minmax(0, 1fr);
    gap: 20px;
    align-items: baseline;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-disclaimer .disc-runway line,
  .page-disclaimer .disc-runway:hover line:nth-child(1),
  .page-disclaimer .disc-runway:hover line:nth-child(2),
  .page-disclaimer .disc-runway:hover line:nth-child(3),
  .page-disclaimer .disc-top,
  .page-disclaimer .disc-sec__body a.link-underline,
  .page-disclaimer .disc-hero__inner .breadcrumb a {
    transition: none;
    transform: none;
  }
}