.page-disclaimer {
  --disc-hl: #E4E9F1;
  --disc-accent: #0F8F85;
  --disc-link: #0B6A63;
  --disc-link-hover: #B84A00;
  --disc-quiet: #6E6657;
  --disc-body-ink: #3B4249;
  background: var(--ink-900);
  color: var(--text);
}

/* ── 首屏 ───────────────────────────────── */
.page-disclaimer .disc-hero {
  position: relative;
  overflow: hidden;
  padding: clamp(26px, 5vw, 58px) 0 clamp(22px, 4vw, 44px);
  border-bottom: 1px solid var(--line-soft);
  background:
    radial-gradient(120% 92% at 86% -14%, rgba(0, 229, 212, .16), transparent 62%),
    radial-gradient(70% 70% at 8% 110%, rgba(255, 122, 26, .10), transparent 70%),
    var(--ink-900);
}

.page-disclaimer .disc-hero::after {
  content: "06";
  position: absolute;
  right: clamp(-16px, 1vw, 32px);
  top: clamp(-24px, -1vw, 4px);
  font-family: var(--font-mono);
  font-size: clamp(150px, 24vw, 280px);
  font-weight: 200;
  line-height: 1;
  letter-spacing: -.04em;
  color: rgba(0, 229, 212, .07);
  pointer-events: none;
  user-select: none;
}

.page-disclaimer .disc-hero-inner {
  position: relative;
  z-index: 1;
}

.page-disclaimer .disc-hero .crumbs {
  margin-bottom: clamp(20px, 3vw, 34px);
}

.page-disclaimer .disc-title {
  margin: 0;
  max-width: 16ch;
  font-size: clamp(46px, 7.4vw, 96px);
  font-weight: 800;
  line-height: 1.02;
  letter-spacing: -.02em;
  color: #FFFFFF;
}

.page-disclaimer .disc-lede {
  margin: clamp(18px, 2.4vw, 26px) 0 0;
  max-width: 60ch;
  font-size: var(--fs-17);
  line-height: 1.8;
  color: var(--text);
}

.page-disclaimer .disc-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 14px 20px;
  margin-top: clamp(22px, 3vw, 32px);
}

.page-disclaimer .disc-meta-note {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--muted);
}

.page-disclaimer .version-note summary {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 6px 12px 6px 6px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: rgba(255, 194, 75, .07);
  cursor: pointer;
  list-style: none;
  transition: border-color var(--t) var(--ease), background-color var(--t) var(--ease);
}

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

.page-disclaimer .version-note summary::marker {
  content: "";
}

.page-disclaimer .version-note summary:hover,
.page-disclaimer .version-note summary:focus-visible {
  border-color: var(--amber);
  background: rgba(255, 194, 75, .13);
}

.page-disclaimer .version-hint {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--muted);
}

.page-disclaimer .version-pop {
  max-width: 580px;
  margin-top: 14px;
  padding: 16px 18px;
  border: 1px solid var(--line);
  border-left: 3px solid var(--amber);
  border-radius: var(--r-sm);
  background: var(--ink-800);
}

.page-disclaimer .version-pop-title {
  margin: 0 0 10px;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: .04em;
  color: var(--amber);
}

.page-disclaimer .version-pop ul {
  margin: 0;
  padding-left: 18px;
}

.page-disclaimer .version-pop li {
  margin-bottom: 6px;
  font-size: 14px;
  line-height: 1.7;
  color: var(--text);
}

.page-disclaimer .version-pop li:last-child {
  margin-bottom: 0;
}

/* ── 顶部窄横幅 ─────────────────────────── */
.page-disclaimer .disc-banner {
  padding: clamp(20px, 3vw, 34px) 0 clamp(26px, 4vw, 48px);
  background: var(--ink-900);
}

.page-disclaimer .disc-figure {
  position: relative;
  margin: 0;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: var(--r-md);
  background: var(--ink-800);
}

.page-disclaimer .disc-figure img {
  display: block;
  width: 100%;
  height: clamp(148px, 20vw, 268px);
  object-fit: cover;
}

.page-disclaimer .disc-figure::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(7, 11, 20, 0) 38%, rgba(7, 11, 20, .60) 100%);
  pointer-events: none;
}

/* ── 暖纸色阅读区 ───────────────────────── */
.page-disclaimer .disc-paper {
  padding: clamp(34px, 5.4vw, 76px) 0 clamp(48px, 7vw, 104px);
  background: var(--paper);
  color: var(--paper-ink);
}

.page-disclaimer .disc-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(26px, 4vw, 56px);
}

/* 目录 */
.page-disclaimer .disc-paper .index-label {
  color: var(--disc-quiet);
}

.page-disclaimer .disc-paper .index-label::before {
  background: var(--orange);
}

.page-disclaimer .disc-toc .chapter-nav {
  display: flex;
  flex-direction: column;
  gap: 2px;
  margin-top: 14px;
  border-top: 1px solid var(--paper-line);
  padding-top: 12px;
}

.page-disclaimer .disc-toc .chapter-nav a {
  display: flex;
  align-items: baseline;
  gap: 10px;
  padding: 8px 10px;
  border-left: 2px solid transparent;
  border-radius: 0 var(--r-sm) var(--r-sm) 0;
  font-size: 14px;
  line-height: 1.5;
  color: #5A6068;
  text-decoration: none;
  transition: color var(--t) var(--ease), border-color var(--t) var(--ease), background-color var(--t) var(--ease);
}

.page-disclaimer .disc-toc .chapter-nav a:hover,
.page-disclaimer .disc-toc .chapter-nav a:focus-visible {
  color: var(--paper-ink);
  border-left-color: var(--cyan);
  background: rgba(0, 229, 212, .10);
}

.page-disclaimer .disc-toc .chapter-nav a[data-active="true"] {
  color: var(--paper-ink);
  font-weight: 700;
  border-left-color: var(--orange);
  background: rgba(255, 122, 26, .12);
}

.page-disclaimer .toc-num {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .1em;
  color: var(--disc-accent);
  font-variant-numeric: tabular-nums;
}

.page-disclaimer .disc-toc .chapter-nav a[data-active="true"] .toc-num {
  color: var(--disc-link-hover);
}

/* 章节 */
.page-disclaimer .clause-set {
  scroll-margin-top: calc(var(--rail-h) + var(--header-h) + 20px);
}

.page-disclaimer .clause-set + .clause-set {
  margin-top: clamp(34px, 4.6vw, 58px);
  padding-top: clamp(30px, 4.2vw, 52px);
  border-top: 1px solid var(--paper-line);
}

.page-disclaimer .clause-head {
  margin-bottom: clamp(16px, 2vw, 24px);
}

.page-disclaimer .disc-paper .t-h2 {
  margin: 8px 0 0;
  color: var(--paper-ink);
  letter-spacing: -.01em;
}

.page-disclaimer .clause-list {
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-disclaimer .clause {
  display: grid;
  grid-template-columns: 1fr;
  gap: 8px;
  padding: 20px 0;
  border-top: 1px solid var(--paper-line);
}

.page-disclaimer .clause:first-child {
  border-top: 0;
  padding-top: 4px;
}

.page-disclaimer .clause-num {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .12em;
  font-variant-numeric: tabular-nums;
  color: var(--disc-quiet);
}

.page-disclaimer .clause-title {
  margin: 0 0 8px;
  font-size: 17px;
  font-weight: 700;
  line-height: 1.5;
  color: var(--paper-ink);
}

.page-disclaimer .clause-body p {
  margin: 0;
  max-width: 64ch;
  font-size: 15.5px;
  line-height: 1.8;
  color: var(--disc-body-ink);
}

.page-disclaimer .clause-body a {
  color: var(--disc-link);
  text-decoration: underline;
  text-decoration-thickness: 1px;
  text-underline-offset: 3px;
  transition: color var(--t) var(--ease);
}

.page-disclaimer .clause-body a:hover,
.page-disclaimer .clause-body a:focus-visible {
  color: var(--disc-link-hover);
}

.page-disclaimer .clause-body p + .steps {
  margin-top: 12px;
}

/* 强调条目 */
.page-disclaimer .clause--flag .clause-body {
  padding: 16px 18px;
  border-left: 3px solid var(--disc-accent);
  border-radius: 0 var(--r-sm) var(--r-sm) 0;
  background: var(--disc-hl);
}

/* 三步走 */
.page-disclaimer .steps {
  margin: 0;
  padding: 0;
  list-style: none;
  counter-reset: disc-step;
  display: grid;
  gap: 9px;
}

.page-disclaimer .steps li {
  display: grid;
  grid-template-columns: 26px minmax(0, 1fr);
  gap: 10px;
  align-items: baseline;
  max-width: 64ch;
  font-size: 15.5px;
  line-height: 1.75;
  color: var(--disc-body-ink);
}

.page-disclaimer .steps li::before {
  counter-increment: disc-step;
  content: counter(disc-step, decimal-leading-zero);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .1em;
  color: var(--disc-accent);
  font-variant-numeric: tabular-nums;
}

.page-disclaimer .steps a {
  color: var(--disc-link);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.page-disclaimer .steps a:hover,
.page-disclaimer .steps a:focus-visible {
  color: var(--disc-link-hover);
}

/* 折叠说明 */
.page-disclaimer .disc-details {
  margin-top: 16px;
  padding: 13px 16px;
  border: 1px dashed #B9AE9A;
  border-radius: var(--r-sm);
  background: rgba(255, 255, 255, .55);
}

.page-disclaimer .disc-details summary {
  font-size: 14.5px;
  font-weight: 700;
  color: var(--paper-ink);
  cursor: pointer;
}

.page-disclaimer .disc-details summary:hover,
.page-disclaimer .disc-details summary:focus-visible {
  color: var(--disc-link-hover);
}

.page-disclaimer .disc-details p {
  margin: 10px 0 0;
  max-width: 64ch;
  font-size: 14.5px;
  line-height: 1.78;
  color: var(--disc-body-ink);
}

/* ── 断点 ───────────────────────────────── */
@media (min-width: 640px) {
  .page-disclaimer .clause {
    grid-template-columns: 62px minmax(0, 1fr);
    gap: 6px 18px;
  }

  .page-disclaimer .clause-num {
    padding-top: 4px;
  }
}

@media (max-width: 979px) {
  .page-disclaimer .disc-toc {
    position: static;
  }

  .page-disclaimer .disc-toc .chapter-nav {
    flex-direction: row;
    gap: 6px;
    padding-top: 12px;
    overflow-x: auto;
    border-top: 1px solid var(--paper-line);
    -webkit-overflow-scrolling: touch;
    scrollbar-width: thin;
  }

  .page-disclaimer .disc-toc .chapter-nav a {
    flex: 0 0 auto;
    white-space: nowrap;
    padding: 8px 12px;
    border-left: 0;
    border-bottom: 2px solid transparent;
    border-radius: var(--r-sm) var(--r-sm) 0 0;
  }

  .page-disclaimer .disc-toc .chapter-nav a:hover,
  .page-disclaimer .disc-toc .chapter-nav a:focus-visible {
    border-left-color: transparent;
    border-bottom-color: var(--cyan);
  }

  .page-disclaimer .disc-toc .chapter-nav a[data-active="true"] {
    border-left-color: transparent;
    border-bottom-color: var(--orange);
  }
}

@media (min-width: 980px) {
  .page-disclaimer .disc-grid {
    grid-template-columns: 208px minmax(0, 1fr);
    align-items: start;
  }

  .page-disclaimer .disc-toc {
    position: sticky;
    top: calc(var(--rail-h) + var(--header-h) + 28px);
    align-self: start;
  }
}

@media (min-width: 1180px) {
  .page-disclaimer .disc-grid {
    grid-template-columns: 232px minmax(0, 1fr);
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-disclaimer .disc-toc .chapter-nav a,
  .page-disclaimer .version-note summary,
  .page-disclaimer .clause-body a {
    transition: none;
  }
}

@media print {
  .page-disclaimer {
    background: #FFFFFF;
    color: #000000;
  }

  .page-disclaimer .disc-hero {
    padding: 0 0 16px;
    border-bottom: 1px solid #999999;
    background: none;
  }

  .page-disclaimer .disc-hero::after {
    display: none;
  }

  .page-disclaimer .disc-title {
    color: #000000;
  }

  .page-disclaimer .disc-lede,
  .page-disclaimer .disc-meta-note {
    color: #222222;
  }

  .page-disclaimer .disc-toc,
  .page-disclaimer .disc-banner {
    display: none;
  }

  .page-disclaimer .disc-grid {
    display: block;
  }

  .page-disclaimer .disc-paper {
    padding: 0;
    background: #FFFFFF;
    color: #000000;
  }

  .page-disclaimer .disc-details > *:not(summary) {
    display: block !important;
  }

  .page-disclaimer .clause {
    break-inside: avoid;
    page-break-inside: avoid;
  }

  .page-disclaimer .clause--flag .clause-body {
    background: #FFFFFF;
    border-left: 3px solid #666666;
  }
}