.page-disclaimer {
  --dc-num-size: clamp(1.7rem, 4.6vw, 3rem);
  --dc-num-w: calc(var(--dc-num-size) * 1.45);
  --dc-gap: clamp(12px, 2.6vw, 30px);
  --dc-rule: rgba(143, 163, 200, 0.3);
  --dc-text: rgba(244, 237, 225, 0.78);
  --dc-text-soft: rgba(244, 237, 225, 0.6);

  display: block;
  position: relative;
  background: var(--c-void);
  color: var(--c-paper);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.75;
  padding-bottom: clamp(56px, 9vw, 110px);
}

.page-disclaimer a {
  color: var(--c-neon);
  text-decoration: none;
}

.page-disclaimer a:focus-visible,
.page-disclaimer summary:focus-visible {
  outline: 2px solid var(--c-neon);
  outline-offset: 3px;
  border-radius: 4px;
}

/* ---------- 首屏 ---------- */
.page-disclaimer .dc-hero {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  padding: clamp(26px, 6vw, 60px) 0 clamp(44px, 7vw, 92px);
  border-bottom: 1px solid var(--glass-line);
}

.page-disclaimer .dc-hero-media {
  position: absolute;
  inset: 0;
  z-index: -1;
}

.page-disclaimer .dc-hero-media img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.46;
}

.page-disclaimer .dc-hero-media::after {
  content: "";
  position: absolute;
  inset: 0;
  background:
    linear-gradient(180deg, rgba(11, 22, 48, 0.58) 0%, rgba(11, 22, 48, 0.88) 58%, var(--c-void) 100%),
    radial-gradient(92% 72% at 84% 6%, rgba(155, 140, 255, 0.3), transparent 62%);
}

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

.page-disclaimer .dc-crumbs {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  margin-bottom: clamp(22px, 4vw, 40px);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--c-mist);
}

.page-disclaimer .dc-crumbs a {
  color: var(--c-mist);
  text-decoration: none;
  transition: color 0.2s var(--ease);
}

.page-disclaimer .dc-crumbs a:hover {
  color: var(--c-neon);
}

.page-disclaimer .dc-crumbs span[aria-current] {
  color: var(--c-neon);
}

.page-disclaimer .dc-hero-inner .index-label {
  display: block;
  margin: 0 0 14px;
  font-size: 11px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--c-mist);
}

.page-disclaimer .dc-hero h1 {
  margin: 0;
  max-width: 20ch;
  font-family: var(--font-display);
  font-weight: 300;
  font-size: clamp(2.1rem, 6.4vw, 4.4rem);
  line-height: 1.07;
  letter-spacing: -0.01em;
  color: var(--c-paper);
}

.page-disclaimer .dc-hero-lede {
  margin: 22px 0 0;
  max-width: 60ch;
  font-size: clamp(0.98rem, 1.6vw, 1.1rem);
  line-height: 1.82;
  color: var(--dc-text);
}

/* ---------- 章节索引条 ---------- */
.page-disclaimer .dc-index {
  position: sticky;
  top: var(--header-h);
  z-index: 8;
  background: var(--glass);
  -webkit-backdrop-filter: blur(16px);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--glass-line);
}

.page-disclaimer .dc-index-list {
  display: flex;
  gap: 6px;
  margin: 0;
  padding: 10px 0;
  list-style: none;
  overflow-x: auto;
  scrollbar-width: none;
  -webkit-overflow-scrolling: touch;
}

.page-disclaimer .dc-index-list::-webkit-scrollbar {
  display: none;
}

.page-disclaimer .dc-index-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 15px;
  border: 1px solid transparent;
  border-radius: var(--radius-pill);
  white-space: nowrap;
  font-size: 13px;
  color: var(--c-mist);
  transition: color 0.2s var(--ease), border-color 0.2s var(--ease), background 0.2s var(--ease);
}

.page-disclaimer .dc-index-link:hover,
.page-disclaimer .dc-index-link:focus-visible {
  color: var(--c-neon);
  border-color: var(--glass-line);
  background: rgba(56, 225, 208, 0.07);
}

.page-disclaimer .dc-index-num {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  color: var(--c-amber);
}

/* ---------- 条款区 ---------- */
.page-disclaimer .dc-clauses {
  padding-top: clamp(34px, 6vw, 72px);
}

.page-disclaimer .dc-clause {
  border-top: 1px dashed var(--dc-rule);
  padding: clamp(20px, 3.6vw, 36px) 0;
  scroll-margin-top: calc(var(--header-h) + 76px);
}

.page-disclaimer .dc-clause details {
  margin: 0;
}

.page-disclaimer .dc-clause summary {
  display: flex;
  align-items: center;
  gap: var(--dc-gap);
  cursor: pointer;
  list-style: none;
}

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

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

.page-disclaimer .dc-num {
  flex: 0 0 var(--dc-num-w);
  font-family: var(--font-display);
  font-weight: 300;
  font-size: var(--dc-num-size);
  line-height: 1;
  letter-spacing: 0.02em;
  color: var(--c-neon);
}

.page-disclaimer .dc-clause--b .dc-num {
  color: var(--c-violet);
}

.page-disclaimer .dc-h {
  flex: 1 1 auto;
  min-width: 0;
  font-family: var(--font-display);
  font-weight: 400;
  font-size: clamp(1.08rem, 2.4vw, 1.55rem);
  line-height: 1.36;
  letter-spacing: 0.01em;
  color: var(--c-paper);
}

.page-disclaimer .dc-clause summary::after {
  content: "";
  flex: none;
  width: 9px;
  height: 9px;
  border-right: 1.5px solid var(--c-neon);
  border-bottom: 1.5px solid var(--c-neon);
  transform: rotate(45deg);
  transition: transform 0.26s var(--ease);
}

.page-disclaimer .dc-clause details[open] summary::after {
  transform: rotate(-135deg);
}

.page-disclaimer .dc-body {
  margin-top: 18px;
  max-width: 68ch;
  font-size: 16px;
  line-height: 1.82;
  color: var(--dc-text);
}

.page-disclaimer .dc-body p {
  margin: 0;
}

.page-disclaimer .dc-body p + p {
  margin-top: 14px;
}

.page-disclaimer .dc-body a {
  color: var(--c-neon);
  text-decoration: underline;
  text-decoration-thickness: 1px;
  text-underline-offset: 3px;
}

.page-disclaimer .dc-body a:hover {
  color: var(--c-amber);
}

/* ---------- 页尾轨道线 ---------- */
.page-disclaimer .dc-rail {
  margin-top: clamp(36px, 6vw, 72px);
  line-height: 0;
}

.page-disclaimer .dc-rail svg {
  display: block;
  width: 100%;
  height: clamp(40px, 7vw, 68px);
}

/* ---------- 回到顶部 ---------- */
.page-disclaimer .dc-totop {
  position: fixed;
  right: clamp(14px, 3vw, 28px);
  bottom: clamp(14px, 3vw, 28px);
  z-index: 30;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 17px;
  border: 1px solid var(--glass-line);
  border-radius: var(--radius-pill);
  background: var(--glass);
  -webkit-backdrop-filter: blur(12px);
  backdrop-filter: blur(12px);
  color: var(--c-paper);
  font-size: 13px;
  letter-spacing: 0.04em;
  white-space: nowrap;
  transition: color 0.2s var(--ease), border-color 0.2s var(--ease);
}

.page-disclaimer .dc-totop:hover,
.page-disclaimer .dc-totop:focus-visible {
  color: var(--c-neon);
  border-color: rgba(56, 225, 208, 0.5);
}

/* ---------- 响应式 ---------- */
@media (min-width: 800px) {
  .page-disclaimer .dc-body {
    padding-left: calc(var(--dc-num-w) + var(--dc-gap));
  }

  .page-disclaimer .dc-hero h1 {
    max-width: 17ch;
  }
}

@media (max-width: 799px) {
  .page-disclaimer .dc-body {
    padding-left: 0;
  }

  .page-disclaimer .dc-index-link {
    padding: 7px 12px;
    font-size: 12px;
  }

  .page-disclaimer .dc-hero-lede {
    font-size: 0.96rem;
  }
}

@media (max-width: 420px) {
  .page-disclaimer .dc-totop span[aria-hidden="true"] {
    display: none;
  }

  .page-disclaimer .dc-totop {
    padding: 9px 14px;
    font-size: 12px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-disclaimer .dc-index-link,
  .page-disclaimer .dc-totop,
  .page-disclaimer .dc-clause summary::after {
    transition: none;
  }
}