.page-disclaimer {
  --dc-hang: 2.3rem;
  --dc-sheet-pad: clamp(1.4rem, 5vw, 3.4rem);
}

/* ---------- 首屏 ---------- */
.page-disclaimer .dc-hero {
  position: relative;
  overflow: hidden;
}
.page-disclaimer .dc-hero::before {
  content: "";
  position: absolute;
  top: -10%;
  right: -14%;
  width: 58%;
  height: 130%;
  background: linear-gradient(180deg, rgba(34, 230, 210, .09), rgba(4, 18, 31, 0) 72%);
  transform: skewX(-8deg);
  pointer-events: none;
}
.page-disclaimer .dc-hero > .wrap {
  position: relative;
  z-index: 1;
}

.page-disclaimer .breadcrumb ol {
  list-style: none;
  margin: 0 0 1.4rem;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: .3rem .2rem;
  font-family: var(--font-data);
  font-size: .72rem;
  letter-spacing: .08em;
  color: var(--mute);
}
.page-disclaimer .breadcrumb li {
  display: inline-flex;
  align-items: center;
}
.page-disclaimer .breadcrumb li + li::before {
  content: "/";
  margin: 0 .6rem;
  color: var(--blueprint);
}
.page-disclaimer .breadcrumb a {
  color: var(--mute);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color .2s var(--ease), border-color .2s var(--ease);
}
.page-disclaimer .breadcrumb a:hover {
  color: var(--cyan);
  border-bottom-color: var(--cyan);
}
.page-disclaimer .breadcrumb [aria-current="page"] {
  color: var(--cyan);
}

.page-disclaimer .dc-hero__grid {
  display: grid;
  gap: 1.8rem;
  align-items: end;
}
.page-disclaimer .dc-hero__lead h1 {
  margin: .5rem 0 0;
  font-family: var(--font-display);
  font-size: clamp(2.7rem, 9vw, 4.6rem);
  line-height: 1.02;
  letter-spacing: -.02em;
  font-weight: 700;
  color: var(--ink);
}
.page-disclaimer .dc-hero__sub {
  margin: 1rem 0 0;
  max-width: 40ch;
  font-size: 1rem;
  line-height: 1.8;
  color: var(--mute);
}
.page-disclaimer .dc-hero__meta {
  margin: 1.3rem 0 0;
  display: flex;
  flex-wrap: wrap;
  gap: .5rem;
}
.page-disclaimer .dc-chip {
  display: inline-flex;
  align-items: center;
  font-family: var(--font-data);
  font-size: .7rem;
  letter-spacing: .1em;
  padding: .32rem .7rem;
  border: 1px solid var(--cyan);
  color: var(--cyan);
  border-radius: 999px;
}
.page-disclaimer .dc-chip--ghost {
  border-color: var(--blueprint);
  color: var(--mute);
}

.page-disclaimer .dc-hero__fig {
  position: relative;
  margin: 0;
  border: 1px solid var(--blueprint);
  overflow: hidden;
}
.page-disclaimer .dc-hero__fig::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(200deg, rgba(4, 18, 31, .55), rgba(4, 18, 31, 0) 62%);
  pointer-events: none;
}
.page-disclaimer .dc-hero__fig img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 14 / 9;
  object-fit: cover;
}

/* ---------- 目录 ---------- */
.page-disclaimer .dc-toc {
  padding: clamp(1.3rem, 4vw, 2.2rem);
}
.page-disclaimer .dc-toc__title {
  margin: 0 0 1rem;
  font-family: var(--font-display);
  font-size: 1.05rem;
  letter-spacing: .08em;
  font-weight: 600;
  color: var(--cyan);
}
.page-disclaimer .dc-toc__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 0;
}
.page-disclaimer .dc-toc__list a {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: .9rem;
  align-items: baseline;
  padding: .7rem .3rem;
  border-bottom: 1px solid var(--blueprint);
  color: var(--ink);
  text-decoration: none;
  font-size: .95rem;
  line-height: 1.5;
  transition: color .2s var(--ease), background-color .2s var(--ease), padding-left .2s var(--ease);
}
.page-disclaimer .dc-toc__list a:hover,
.page-disclaimer .dc-toc__list a:focus-visible {
  color: var(--cyan);
  background: rgba(34, 230, 210, .07);
  padding-left: .7rem;
}
.page-disclaimer .dc-toc__no {
  font-family: var(--font-data);
  font-size: .76rem;
  letter-spacing: .1em;
  color: var(--cyan);
}

/* ---------- 协议纸张 ---------- */
.page-disclaimer .dc-stack {
  position: relative;
}
.page-disclaimer .dc-stack::before,
.page-disclaimer .dc-stack::after {
  content: "";
  position: absolute;
  z-index: 0;
  background: var(--paper);
  border: 1px solid var(--paper-edge);
  box-shadow: var(--shadow-paper);
}
.page-disclaimer .dc-stack::before {
  inset: -10px -12px -16px 10px;
  transform: rotate(.7deg);
}
.page-disclaimer .dc-stack::after {
  inset: 14px 16px -12px -10px;
  transform: rotate(-.6deg);
}
.page-disclaimer .dc-sheet {
  position: relative;
  z-index: 1;
  counter-reset: dc-clause;
  padding: var(--dc-sheet-pad);
  background: var(--paper);
  border: 1px solid var(--paper-edge);
  box-shadow: var(--shadow-paper);
  color: var(--ink-paper-2);
}
.page-disclaimer .dc-sheet__caption {
  margin: 0 0 1.7rem;
  padding-bottom: .9rem;
  border-bottom: 2px solid var(--ink-paper);
  font-family: var(--font-data);
  font-size: .72rem;
  letter-spacing: .18em;
  color: rgba(36, 26, 20, .62);
}

.page-disclaimer .dc-clause {
  counter-increment: dc-clause;
}
.page-disclaimer .dc-clause + .dc-clause {
  margin-top: 1.9rem;
  padding-top: 1.9rem;
  border-top: 1px solid var(--paper-edge);
}
.page-disclaimer .dc-clause__title {
  position: relative;
  margin: 0 0 .9rem;
  padding-left: var(--dc-hang);
  font-family: var(--font-display);
  font-size: clamp(1.18rem, 3.6vw, 1.5rem);
  font-weight: 600;
  line-height: 1.34;
  letter-spacing: .01em;
  color: var(--ink-paper);
}
.page-disclaimer .dc-clause__title::before {
  content: counter(dc-clause, decimal-leading-zero);
  position: absolute;
  left: 0;
  top: .18em;
  padding-bottom: .12em;
  border-bottom: 2px solid var(--signal);
  font-family: var(--font-data);
  font-size: .78rem;
  letter-spacing: .1em;
  line-height: 1;
  color: var(--signal);
}

.page-disclaimer .dc-points {
  margin: 0;
  padding-left: 1.35rem;
  display: grid;
  gap: .68rem;
  font-size: .97rem;
  line-height: 1.85;
  color: var(--ink-paper-2);
}
.page-disclaimer .dc-points li::marker {
  color: var(--signal);
  font-family: var(--font-data);
  font-size: .85em;
}
.page-disclaimer .dc-em {
  font-family: var(--font-data);
  letter-spacing: .02em;
  color: var(--ink-paper);
  border-bottom: 1px dotted var(--signal);
}

.page-disclaimer .dc-sheet__foot {
  margin-top: 2.4rem;
  padding-top: 1.3rem;
  border-top: 1px solid var(--paper-edge);
}
.page-disclaimer .dc-sheet__note {
  margin: 0;
  font-size: .88rem;
  line-height: 1.8;
  color: rgba(58, 46, 37, .86);
}
.page-disclaimer .dc-links {
  list-style: none;
  margin: 1.1rem 0 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: .5rem 1.4rem;
}
.page-disclaimer .dc-links a {
  font-size: .9rem;
  color: var(--ink-paper);
  text-decoration: underline;
  text-decoration-color: var(--signal);
  text-decoration-thickness: 1px;
  text-underline-offset: 4px;
}
.page-disclaimer .dc-links a:hover {
  color: var(--signal);
}

/* ---------- 返回顶部 ---------- */
.page-disclaimer .dc-totop {
  position: fixed;
  right: .9rem;
  bottom: .9rem;
  z-index: 20;
  padding: .55rem .75rem;
  background: var(--abyss);
  border: 1px solid var(--blueprint);
  border-radius: 2px;
  font-family: var(--font-data);
  font-size: .7rem;
  letter-spacing: .1em;
  color: var(--cyan);
  text-decoration: none;
  transition: border-color .2s var(--ease), background-color .2s var(--ease);
}
.page-disclaimer .dc-totop:hover,
.page-disclaimer .dc-totop:focus-visible {
  border-color: var(--cyan);
  background: var(--deep);
}

/* ---------- 桌面增强 ---------- */
@media (min-width: 760px) {
  .page-disclaimer {
    --dc-hang: 3.3rem;
  }
  .page-disclaimer .dc-toc__list {
    grid-template-columns: 1fr 1fr;
    column-gap: 2.6rem;
  }
  .page-disclaimer .dc-totop {
    right: 1.5rem;
    bottom: 1.5rem;
  }
}

@media (min-width: 900px) {
  .page-disclaimer .dc-hero__grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    gap: 3rem;
  }
  .page-disclaimer .dc-hero__sub {
    font-size: 1.06rem;
  }
}

/* ---------- 窄屏收敛 ---------- */
@media (max-width: 640px) {
  .page-disclaimer .dc-stack::before {
    inset: -6px -6px -10px 6px;
  }
  .page-disclaimer .dc-stack::after {
    display: none;
  }
  .page-disclaimer .dc-points {
    padding-left: 1.1rem;
    font-size: .94rem;
  }
  .page-disclaimer .dc-clause + .dc-clause {
    margin-top: 1.6rem;
    padding-top: 1.6rem;
  }
}