.page-disclaimer {
  --dc-tone: var(--blue);
  --dc-gap: clamp(20px, 3vw, 32px);
  background-color: var(--ink);
  background-image:
    linear-gradient(rgba(42, 63, 92, 0.26) 1px, transparent 1px),
    linear-gradient(90deg, rgba(42, 63, 92, 0.26) 1px, transparent 1px);
  background-size: 72px 72px;
  background-position: -1px -1px;
  color: var(--text);
  font-family: var(--font-cn);
  font-size: 15px;
  line-height: 1.9;
  padding-bottom: clamp(56px, 8vw, 104px);
}

.page-disclaimer .mono {
  font-family: var(--font-mono);
}

/* ---------- 首屏 ---------- */
.page-disclaimer .dc-hero {
  padding-top: clamp(20px, 4vw, 48px);
  padding-bottom: clamp(20px, 3.5vw, 36px);
}

.page-disclaimer .crumbs {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  margin: 0 0 clamp(18px, 3vw, 30px);
  font-size: 13px;
  color: var(--muted);
}

.page-disclaimer .crumbs__link {
  color: var(--muted);
  text-decoration: none;
  border-bottom: 1px solid transparent;
}

.page-disclaimer .crumbs__link:hover,
.page-disclaimer .crumbs__link:focus-visible {
  color: var(--cyan);
  border-bottom-color: var(--cyan);
}

.page-disclaimer .crumbs__sep {
  color: var(--line);
}

.page-disclaimer .crumbs__here {
  color: var(--text);
}

.page-disclaimer .dc-hero__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(22px, 4vw, 44px);
}

.page-disclaimer .dc-hero__eyebrow {
  margin: 0 0 14px;
  font-size: 11px;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  color: var(--orange);
}

.page-disclaimer .dc-hero__title {
  margin: 0 0 18px;
  font-size: clamp(40px, 9vw, 84px);
  font-weight: 900;
  line-height: 0.98;
  letter-spacing: -0.02em;
  color: var(--white);
}

.page-disclaimer .dc-hero__lead {
  max-width: 46ch;
  margin: 0 0 16px;
  color: var(--text);
}

.page-disclaimer .dc-hero__meta {
  margin: 0;
  padding-left: 12px;
  border-left: 2px solid var(--line);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--muted);
}

.page-disclaimer .dc-hero__fig {
  margin: 0;
  border: var(--hair);
  background: var(--ink-deep);
  box-shadow: var(--shadow);
}

.page-disclaimer .dc-hero__fig img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
}

.page-disclaimer .dc-hero__fig figcaption {
  padding: 10px 14px;
  border-top: var(--hair);
  font-size: 12px;
  letter-spacing: 0.04em;
  color: var(--muted);
}

/* ---------- 主体布局 ---------- */
.page-disclaimer .dc-body {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--dc-gap);
  margin-top: clamp(28px, 5vw, 56px);
}

.page-disclaimer .dc-clauses {
  display: grid;
  gap: clamp(16px, 2.2vw, 24px);
  min-width: 0;
}

/* ---------- 条款 ---------- */
.page-disclaimer .dc-clause {
  --dc-tone: var(--blue);
  border: var(--hair);
  background: linear-gradient(180deg, rgba(20, 41, 74, 0.55), rgba(11, 30, 51, 0.32));
  box-shadow: var(--shadow);
  padding: clamp(18px, 3vw, 30px);
}

.page-disclaimer .dc-clause--orange { --dc-tone: var(--orange); }
.page-disclaimer .dc-clause--cyan { --dc-tone: var(--cyan); }
.page-disclaimer .dc-clause--blue { --dc-tone: var(--blue); }

.page-disclaimer .dc-clause__head {
  display: grid;
  grid-template-columns: 56px minmax(0, 1fr);
  align-items: baseline;
  gap: 12px;
  padding-bottom: 12px;
  margin-bottom: 14px;
  border-bottom: var(--hair);
}

.page-disclaimer .dc-clause__num {
  font-size: 13px;
  letter-spacing: 0.14em;
  color: var(--dc-tone);
}

.page-disclaimer .dc-clause__title {
  margin: 0;
  font-size: clamp(19px, 2.4vw, 24px);
  font-weight: 800;
  line-height: 1.4;
  color: var(--white);
}

.page-disclaimer .dc-clause__lead {
  max-width: 62ch;
  margin: 0 0 14px;
  color: var(--text);
}

.page-disclaimer .dc-clause__more {
  border-top: 1px dashed var(--line);
  padding-top: 12px;
}

.page-disclaimer .dc-clause__sum {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 4px 0;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.08em;
  color: var(--dc-tone);
  cursor: pointer;
  list-style: none;
}

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

.page-disclaimer .dc-clause__sum::before {
  content: "";
  width: 16px;
  height: 1px;
  background: var(--dc-tone);
  transition: width 0.2s var(--ease);
}

.page-disclaimer .dc-clause__more[open] .dc-clause__sum::before {
  width: 30px;
}

.page-disclaimer .dc-clause__sum:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 3px;
}

.page-disclaimer .dc-clause__sum-close {
  display: none;
}

.page-disclaimer .dc-clause__more[open] .dc-clause__sum-open {
  display: none;
}

.page-disclaimer .dc-clause__more[open] .dc-clause__sum-close {
  display: inline;
}

.page-disclaimer .dc-clause__body {
  margin-top: 10px;
  padding: 2px 0 2px clamp(12px, 2vw, 18px);
  border-left: 1px solid var(--dc-tone);
}

.page-disclaimer .dc-clause__more[open] .dc-clause__body {
  animation: dc-clause-in 0.28s var(--ease);
}

@keyframes dc-clause-in {
  from { opacity: 0; transform: translateY(-4px); }
  to { opacity: 1; transform: none; }
}

.page-disclaimer .dc-clause__body h3 {
  margin: 18px 0 8px;
  font-size: 14px;
  font-weight: 700;
  letter-spacing: 0.05em;
  color: var(--white);
}

.page-disclaimer .dc-clause__body h3:first-child {
  margin-top: 4px;
}

.page-disclaimer .dc-clause__body p {
  margin: 0 0 10px;
}

.page-disclaimer .dc-clause__body ul {
  margin: 0 0 6px;
  padding: 0;
  list-style: none;
}

.page-disclaimer .dc-clause__body li {
  position: relative;
  margin-bottom: 6px;
  padding-left: 18px;
  color: var(--text);
}

.page-disclaimer .dc-clause__body li::before {
  content: "";
  position: absolute;
  left: 2px;
  top: 0.85em;
  width: 8px;
  height: 1px;
  background: var(--dc-tone);
  opacity: 0.85;
}

.page-disclaimer .dc-clause__body a {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(0, 229, 255, 0.35);
}

.page-disclaimer .dc-clause__body a:hover,
.page-disclaimer .dc-clause__body a:focus-visible {
  border-bottom-color: var(--cyan);
}

.page-disclaimer .dc-sample {
  margin: 0 0 12px;
  padding: 12px 14px;
  border: var(--hair);
  background: var(--ink-deep);
  font-size: 13px;
  line-height: 1.8;
  color: var(--text);
}

/* ---------- 编号导航 ---------- */
.page-disclaimer .dc-index {
  order: -1;
  border: var(--hair);
  background: rgba(7, 20, 38, 0.78);
  padding: 14px 16px;
}

.page-disclaimer .dc-index__label {
  margin: 0 0 10px;
  font-size: 11px;
  letter-spacing: 0.3em;
  color: var(--muted);
}

.page-disclaimer .dc-index__list {
  display: flex;
  flex-wrap: wrap;
  gap: 4px 18px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-disclaimer .dc-index__link {
  display: inline-flex;
  align-items: baseline;
  gap: 8px;
  padding: 4px 0;
  font-size: 13px;
  color: var(--muted);
  text-decoration: none;
}

.page-disclaimer .dc-index__link .mono {
  font-size: 12px;
  color: var(--blue);
}

.page-disclaimer .dc-index__link:hover,
.page-disclaimer .dc-index__link:focus-visible {
  color: var(--white);
}

.page-disclaimer .dc-index__top {
  display: inline-block;
  margin-top: 12px;
  font-size: 12px;
  color: var(--muted);
  text-decoration: none;
  border-bottom: 1px dashed var(--line);
}

.page-disclaimer .dc-index__top:hover,
.page-disclaimer .dc-index__top:focus-visible {
  color: var(--cyan);
  border-bottom-color: var(--cyan);
}

/* ---------- 收尾 ---------- */
.page-disclaimer .dc-help {
  margin-top: clamp(34px, 6vw, 68px);
}

.page-disclaimer .dc-help__inner {
  border: var(--hair);
  border-left: 2px solid var(--orange);
  background: linear-gradient(120deg, rgba(255, 107, 53, 0.12), rgba(11, 30, 51, 0.2) 62%);
  padding: clamp(20px, 3.4vw, 36px);
}

.page-disclaimer .dc-help__title {
  margin: 0 0 10px;
  font-size: clamp(20px, 3vw, 28px);
  font-weight: 800;
  color: var(--white);
}

.page-disclaimer .dc-help__text {
  max-width: 60ch;
  margin: 0 0 18px;
  color: var(--text);
}

.page-disclaimer .dc-help__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

/* ---------- 桌面布局 ---------- */
@media (min-width: 900px) {
  .page-disclaimer .dc-hero__grid {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
    align-items: end;
  }
}

@media (min-width: 1000px) {
  .page-disclaimer .dc-body {
    grid-template-columns: minmax(0, 1fr) 190px;
    align-items: start;
    gap: clamp(28px, 4vw, 56px);
  }

  .page-disclaimer .dc-index {
    order: 0;
    position: sticky;
    top: 24px;
    padding: 18px 16px;
  }

  .page-disclaimer .dc-index__list {
    flex-direction: column;
    gap: 2px;
  }

  .page-disclaimer .dc-index__link {
    display: flex;
    padding-left: 10px;
    border-left: 2px solid transparent;
    transition: border-color 0.2s var(--ease), color 0.2s var(--ease);
  }

  .page-disclaimer .dc-index__link:hover,
  .page-disclaimer .dc-index__link:focus-visible {
    border-left-color: var(--orange);
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-disclaimer .dc-clause__more[open] .dc-clause__body {
    animation: none;
  }

  .page-disclaimer .dc-clause__sum::before {
    transition: none;
  }
}