.page-disclaimer {
  --dc-cut: 18px;
  --dc-cut-sm: 12px;
  display: block;
  padding-bottom: clamp(56px, 9vw, 104px);
  color: var(--chalk-white);
  font-family: var(--font-body);
}

/* ---------- 首屏 ---------- */
.page-disclaimer .dc-hero {
  margin-top: clamp(18px, 3vw, 34px);
}

.page-disclaimer .dc-kicker {
  display: inline-block;
  margin: 0;
  padding-bottom: 5px;
  border-bottom: 2px solid var(--signal-orange);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--neon-cyan);
}

.page-disclaimer .dc-title {
  margin: 18px 0 0;
  font-family: var(--font-head);
  font-weight: 800;
  font-size: clamp(36px, 8.4vw, 72px);
  line-height: 1.02;
  letter-spacing: -0.012em;
  color: var(--chalk-white);
  text-wrap: balance;
}

.page-disclaimer .dc-lead {
  margin: 18px 0 0;
  max-width: 66ch;
  font-size: clamp(15px, 1.5vw, 17px);
  line-height: 1.78;
  color: var(--muted-sage);
}

.page-disclaimer .dc-facts {
  list-style: none;
  margin: clamp(24px, 3.6vw, 34px) 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: 1px;
  background: var(--line-chalk);
  border: 1px solid var(--line-chalk);
}

.page-disclaimer .dc-facts li {
  display: grid;
  gap: 7px;
  padding: 14px 16px;
  background: var(--ink-turf);
}

.page-disclaimer .dc-fact-k {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  color: var(--muted-sage);
}

.page-disclaimer .dc-fact-v {
  font-family: var(--font-head);
  font-weight: 700;
  font-size: 22px;
  line-height: 1.1;
  color: var(--chalk-white);
}

/* ---------- 顶部横幅 ---------- */
.page-disclaimer .dc-banner {
  position: relative;
  margin: clamp(26px, 4vw, 44px) 0 0;
  overflow: hidden;
  border: 1px solid var(--line-chalk);
  background: var(--charcoal-panel);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - var(--dc-cut)), calc(100% - var(--dc-cut)) 100%, 0 100%);
}

.page-disclaimer .dc-banner img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 16 / 10;
  object-fit: cover;
  filter: contrast(1.08) saturate(0.9);
}

/* ---------- 核心边界 ---------- */
.page-disclaimer .dc-bounds {
  margin-top: clamp(36px, 5vw, 62px);
}

.page-disclaimer .dc-bounds-title {
  margin: 0 0 18px;
  font-family: var(--font-head);
  font-weight: 700;
  font-size: clamp(22px, 3vw, 30px);
  line-height: 1.15;
  color: var(--chalk-white);
}

.page-disclaimer .dc-bounds-band {
  display: grid;
  gap: 12px;
}

.page-disclaimer .dc-bound {
  position: relative;
  background: var(--charcoal-panel);
  border: 1px solid var(--line-chalk);
  clip-path: polygon(0 0, 100% 0, 100% 100%, 16px 100%, 0 calc(100% - 16px));
  transition: background-color 180ms var(--ease), border-color 180ms var(--ease);
}

.page-disclaimer .dc-bound[open] {
  background: #101a17;
  border-color: rgba(53, 242, 192, 0.42);
}

.page-disclaimer .dc-bound > summary {
  list-style: none;
  cursor: pointer;
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  align-items: center;
  gap: 12px;
  padding: 16px 18px;
  min-height: 62px;
}

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

.page-disclaimer .dc-bound > summary::marker {
  content: "";
}

.page-disclaimer .dc-bound > summary:focus-visible {
  outline: 2px solid var(--neon-cyan);
  outline-offset: -2px;
}

.page-disclaimer .dc-bound-num {
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 20px;
  line-height: 1;
  letter-spacing: 0.02em;
  color: var(--neon-cyan);
}

.page-disclaimer .dc-bound-main {
  display: grid;
  gap: 7px;
  min-width: 0;
}

.page-disclaimer .dc-bound-label {
  justify-self: start;
  padding: 2px 7px;
  border: 1px solid rgba(255, 122, 47, 0.45);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  color: var(--signal-orange);
}

.page-disclaimer .dc-bound-text {
  font-size: 14px;
  line-height: 1.6;
  color: var(--muted-sage);
  transition: color 180ms var(--ease);
}

.page-disclaimer .dc-bound[open] .dc-bound-text {
  color: var(--chalk-white);
}

.page-disclaimer .dc-bound-caret {
  display: grid;
  place-items: center;
  width: 22px;
  height: 22px;
  border: 1px solid var(--line-chalk);
  font-family: var(--font-mono);
  font-size: 14px;
  line-height: 1;
  color: var(--neon-cyan);
  transition: border-color 180ms var(--ease);
}

.page-disclaimer .dc-bound-caret::after {
  content: "+";
}

.page-disclaimer .dc-bound[open] .dc-bound-caret {
  border-color: rgba(53, 242, 192, 0.5);
}

.page-disclaimer .dc-bound[open] .dc-bound-caret::after {
  content: "–";
}

.page-disclaimer .dc-bound-body {
  padding: 14px 18px 20px;
  border-top: 1px solid var(--line-chalk);
}

.page-disclaimer .dc-bound-body p {
  margin: 0;
  font-size: 14px;
  line-height: 1.78;
  color: var(--muted-sage);
}

/* ---------- 主体：目录 + 条款 ---------- */
.page-disclaimer .dc-body {
  margin-top: clamp(44px, 6vw, 80px);
  display: grid;
  gap: clamp(26px, 4vw, 40px);
}

.page-disclaimer .dc-toc {
  border-top: 2px solid var(--signal-orange);
  padding-top: 14px;
}

.page-disclaimer .dc-toc-title {
  margin: 0 0 12px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.12em;
  color: var(--muted-sage);
}

.page-disclaimer .dc-toc-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 2px;
}

.page-disclaimer .dc-toc-link {
  display: block;
  padding: 8px 10px;
  border-left: 2px solid var(--line-chalk);
  font-size: 14px;
  line-height: 1.45;
  color: var(--muted-sage);
  text-decoration: none;
  transition: color 160ms var(--ease), border-color 160ms var(--ease), background-color 160ms var(--ease);
}

.page-disclaimer .dc-toc-link:hover {
  color: var(--chalk-white);
  border-left-color: var(--neon-cyan);
  background: rgba(53, 242, 192, 0.06);
}

.page-disclaimer .dc-toc-link:focus-visible {
  outline: 2px solid var(--neon-cyan);
  outline-offset: 2px;
  color: var(--chalk-white);
  border-left-color: var(--neon-cyan);
}

.page-disclaimer .dc-clauses {
  display: grid;
  gap: clamp(30px, 4.4vw, 48px);
  min-width: 0;
}

.page-disclaimer .clause {
  padding-top: 22px;
  border-top: 1px solid var(--line-chalk);
  scroll-margin-top: 26px;
  transition: border-color 200ms var(--ease);
}

.page-disclaimer .clause:target {
  border-top-color: rgba(53, 242, 192, 0.65);
}

.page-disclaimer .dc-clause-title {
  margin: 0 0 15px;
  font-family: var(--font-head);
  font-weight: 700;
  font-size: clamp(22px, 3.2vw, 32px);
  line-height: 1.15;
  letter-spacing: 0.005em;
  color: var(--chalk-white);
  transition: color 200ms var(--ease);
}

.page-disclaimer .dc-clause-title::before {
  content: "";
  display: inline-block;
  width: 2px;
  height: 0.86em;
  margin-right: 12px;
  background: var(--signal-orange);
  vertical-align: -0.05em;
}

.page-disclaimer .clause:target .dc-clause-title {
  color: var(--neon-cyan);
}

.page-disclaimer .clause p {
  margin: 0 0 14px;
  max-width: 70ch;
  font-size: 16px;
  line-height: 1.78;
  color: var(--muted-sage);
}

.page-disclaimer .clause p:last-child {
  margin-bottom: 0;
}

.page-disclaimer .clause a {
  color: var(--neon-cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(53, 242, 192, 0.35);
  transition: border-color 160ms var(--ease), color 160ms var(--ease);
}

.page-disclaimer .clause a:hover {
  color: var(--chalk-white);
  border-bottom-color: var(--chalk-white);
}

.page-disclaimer .clause a:focus-visible {
  outline: 2px solid var(--neon-cyan);
  outline-offset: 2px;
}

/* 重点条款卡 */
.page-disclaimer .dc-keycard {
  margin: 0 0 16px;
  padding: 16px 18px;
  border: 1px solid rgba(255, 122, 47, 0.38);
  border-left: 3px solid var(--signal-orange);
  background: rgba(255, 122, 47, 0.055);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 12px), calc(100% - 12px) 100%, 0 100%);
}

.page-disclaimer .dc-keycard p {
  margin: 0 0 12px;
  max-width: 68ch;
  font-size: 15px;
  line-height: 1.75;
  color: var(--chalk-white);
}

.page-disclaimer .dc-keycard p:last-child {
  margin-bottom: 0;
}

/* 规范列表 */
.page-disclaimer .dc-list {
  list-style: none;
  margin: 0 0 16px;
  padding: 0;
  display: grid;
  gap: 11px;
  max-width: 72ch;
}

.page-disclaimer .dc-list li {
  position: relative;
  padding-left: 24px;
  font-size: 15px;
  line-height: 1.74;
  color: var(--muted-sage);
}

.page-disclaimer .dc-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.68em;
  width: 12px;
  height: 2px;
  background: var(--signal-orange);
}

/* 引用格式 */
.page-disclaimer .dc-cite {
  margin: 20px 0 18px;
  padding: 18px;
  max-width: 100%;
  border: 1px dashed var(--line-chalk);
  background: transparent;
}

.page-disclaimer .dc-cite-label {
  margin: 0 0 12px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.12em;
  color: var(--neon-cyan);
}

.page-disclaimer .dc-cite pre {
  margin: 0;
  padding: 0;
  border: 0;
  background: none;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}

.page-disclaimer .dc-cite code {
  display: block;
  font-family: var(--font-mono);
  font-size: clamp(11px, 2.9vw, 13px);
  line-height: 1.95;
  color: var(--chalk-white);
  white-space: pre;
  letter-spacing: 0.01em;
}

/* 行动按钮 */
.page-disclaimer .dc-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 24px;
}

/* ---------- 响应式 ---------- */
@media (min-width: 700px) {
  .page-disclaimer .dc-banner img {
    aspect-ratio: 2 / 1;
  }
}

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

@media (min-width: 1000px) {
  .page-disclaimer .dc-body {
    grid-template-columns: 236px minmax(0, 1fr);
    gap: 60px;
    align-items: start;
  }

  .page-disclaimer .dc-toc {
    position: sticky;
    top: 28px;
  }

  .page-disclaimer .dc-toc-list {
    grid-template-columns: 1fr;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-disclaimer .dc-bound,
  .page-disclaimer .dc-bound-text,
  .page-disclaimer .dc-bound-caret,
  .page-disclaimer .dc-toc-link,
  .page-disclaimer .dc-clause-title,
  .page-disclaimer .clause {
    transition: none;
  }
}