.page-disclaimer {
  --dc-b1: #14395A;
  --dc-b2: #1F6B85;
  --dc-b3: #2FB6C6;
  --dc-b4: #6FD8E2;
  --dc-paper-rule: rgba(26, 20, 16, .14);
  --dc-paper-soft: rgba(26, 20, 16, .055);
  --dc-paper-dim: rgba(26, 20, 16, .60);
  --dc-paper-text: rgba(26, 20, 16, .86);
  display: block;
}

/* ---------- 首屏 ---------- */

.page-disclaimer .dc-hero {
  position: relative;
  overflow: hidden;
  padding: calc(var(--sr-header-h) + 62px) 0 54px;
}

.page-disclaimer .dc-hero::before {
  content: "";
  position: absolute;
  inset: -12% -20% 0;
  background:
    radial-gradient(660px 300px at 74% 4%, rgba(122, 91, 224, .22), transparent 68%),
    radial-gradient(520px 280px at 12% 94%, rgba(47, 182, 198, .14), transparent 70%);
  pointer-events: none;
}

.page-disclaimer .dc-hero::after {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    radial-gradient(1.4px 1.4px at 18% 34%, rgba(201, 214, 228, .55), transparent 100%),
    radial-gradient(1.2px 1.2px at 62% 16%, rgba(201, 214, 228, .42), transparent 100%),
    radial-gradient(1.6px 1.6px at 86% 56%, rgba(201, 214, 228, .38), transparent 100%),
    radial-gradient(1.1px 1.1px at 38% 78%, rgba(201, 214, 228, .30), transparent 100%);
  pointer-events: none;
}

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

.page-disclaimer .dc-hero h1 {
  margin: 20px 0 0;
  max-width: 20ch;
  font-family: var(--sr-display);
  font-weight: 700;
  font-size: clamp(2.3rem, 6.4vw, 4.4rem);
  line-height: 1.04;
  letter-spacing: .075em;
  color: var(--sr-white);
}

.page-disclaimer .dc-hero__lead {
  margin: 24px 0 0;
  max-width: 44rem;
  font-family: var(--sr-body);
  font-size: var(--sr-fs-base);
  line-height: 1.82;
  color: var(--sr-silver);
}

.page-disclaimer .dc-jump {
  list-style: none;
  margin: 34px 0 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 10px 12px;
}

.page-disclaimer .dc-jump a {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 7px 14px;
  border: 1px solid var(--sr-line);
  border-radius: var(--sr-radius);
  color: var(--sr-silver);
  font-size: var(--sr-fs-sm);
  letter-spacing: .04em;
  text-decoration: none;
  transition: border-color .18s var(--sr-ease), color .18s var(--sr-ease), transform .18s var(--sr-ease);
}

.page-disclaimer .dc-jump a .sr-mono {
  color: var(--sr-signal);
  font-size: var(--sr-fs-xs);
}

.page-disclaimer .dc-jump a:hover {
  border-color: var(--sr-signal);
  color: var(--sr-white);
  transform: translateY(-2px);
}

.page-disclaimer .dc-jump a:focus-visible {
  outline: 2px solid var(--sr-lake);
  outline-offset: 2px;
}

/* ---------- 手册主体 ---------- */

.page-disclaimer .dc-manual {
  background: var(--sr-cream);
  color: var(--sr-ink);
  border-top: 3px solid var(--sr-press);
  border-bottom: 1px solid var(--dc-paper-rule);
  padding: 48px 0 72px;
}

.page-disclaimer .dc-manual a {
  color: var(--sr-press);
  text-decoration: none;
  border-bottom: 1px solid rgba(196, 69, 31, .38);
  transition: border-color .18s var(--sr-ease), color .18s var(--sr-ease);
}

.page-disclaimer .dc-manual a:hover {
  color: #8f3216;
  border-bottom-color: #8f3216;
}

.page-disclaimer .dc-manual a:focus-visible {
  outline: 2px solid var(--sr-lake);
  outline-offset: 2px;
}

.page-disclaimer .dc-chapter {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 14px;
  padding: 36px 0;
  border-top: 1px solid var(--dc-paper-rule);
}

.page-disclaimer .dc-chapter:first-child {
  border-top: 0;
  padding-top: 0;
}

.page-disclaimer .dc-chapter__rail {
  display: flex;
  flex-direction: column;
  gap: 7px;
  min-width: 0;
}

.page-disclaimer .dc-chapter__num {
  font-family: var(--sr-mono);
  font-size: 1.45rem;
  font-weight: 700;
  line-height: 1;
  letter-spacing: .08em;
  color: var(--sr-press);
}

.page-disclaimer .dc-chapter__kicker {
  font-family: var(--sr-display);
  font-size: var(--sr-fs-sm);
  letter-spacing: .16em;
  color: var(--dc-paper-dim);
}

.page-disclaimer .dc-chapter__body {
  min-width: 0;
}

.page-disclaimer .dc-chapter h2 {
  margin: 0 0 16px;
  font-family: var(--sr-display);
  font-weight: 700;
  font-size: clamp(1.45rem, 3.4vw, 2rem);
  line-height: 1.26;
  letter-spacing: .045em;
  color: var(--sr-ink);
}

.page-disclaimer .dc-chapter p {
  margin: 0 0 16px;
  max-width: 40rem;
  font-family: var(--sr-body);
  font-size: var(--sr-fs-base);
  line-height: 1.78;
  color: var(--dc-paper-text);
}

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

/* ---------- 阶段轨道 ---------- */

.page-disclaimer .dc-phases {
  list-style: none;
  margin: 24px 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 8px;
  max-width: 40rem;
}

.page-disclaimer .dc-phase {
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  gap: 14px;
  min-height: 82px;
  padding: 13px 13px 12px;
  border-radius: var(--sr-radius);
  color: var(--sr-white);
  transition: transform .18s var(--sr-ease);
}

.page-disclaimer .dc-phase:hover {
  transform: translateY(-2px);
}

.page-disclaimer .dc-phase--1 { background: var(--dc-b1); }
.page-disclaimer .dc-phase--2 { background: var(--dc-b2); }
.page-disclaimer .dc-phase--3 { background: var(--dc-b3); color: #04222b; }
.page-disclaimer .dc-phase--4 { background: var(--dc-b4); color: #04222b; }

.page-disclaimer .dc-phase__idx {
  font-size: var(--sr-fs-xs);
  letter-spacing: .12em;
  opacity: .78;
}

.page-disclaimer .dc-phase__name {
  font-family: var(--sr-display);
  font-size: 1.06rem;
  letter-spacing: .1em;
}

/* ---------- 图 ---------- */

.page-disclaimer .dc-figure {
  margin: 4px 0 26px;
  max-width: 40rem;
}

.page-disclaimer .dc-figure img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  border: 1px solid var(--dc-paper-rule);
  border-radius: var(--sr-radius);
  background: var(--sr-night);
  object-fit: cover;
}

.page-disclaimer .dc-figure figcaption {
  margin-top: 10px;
  font-family: var(--sr-body);
  font-size: var(--sr-fs-xs);
  line-height: 1.7;
  letter-spacing: .03em;
  color: var(--dc-paper-dim);
}

/* ---------- 术语表 ---------- */

.page-disclaimer .dc-terms {
  list-style: none;
  margin: 24px 0;
  padding: 0;
  max-width: 40rem;
  border-top: 1px dashed var(--dc-paper-rule);
}

.page-disclaimer .dc-terms li {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 3px;
  padding: 12px 10px 12px 8px;
  border-bottom: 1px dashed var(--dc-paper-rule);
  transition: background .18s var(--sr-ease);
}

.page-disclaimer .dc-terms li:hover {
  background: var(--dc-paper-soft);
}

.page-disclaimer .dc-terms__name {
  font-family: var(--sr-mono);
  font-size: var(--sr-fs-sm);
  font-weight: 700;
  letter-spacing: .06em;
  color: var(--sr-press);
  border-bottom: 1px dashed var(--dc-paper-rule);
  padding-bottom: 4px;
}

.page-disclaimer .dc-terms__desc {
  font-family: var(--sr-body);
  font-size: var(--sr-fs-sm);
  line-height: 1.72;
  color: var(--dc-paper-text);
}

/* ---------- 版本号 ---------- */

.page-disclaimer .dc-version {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 10px 22px;
  margin: 6px 0 20px;
}

.page-disclaimer .dc-version__num {
  font-family: var(--sr-mono);
  font-weight: 700;
  font-size: clamp(2.6rem, 9vw, 4.3rem);
  line-height: .92;
  letter-spacing: -.01em;
  color: var(--sr-press);
}

.page-disclaimer .dc-version__meta {
  font-family: var(--sr-display);
  font-size: var(--sr-fs-sm);
  letter-spacing: .14em;
  color: var(--dc-paper-dim);
}

.page-disclaimer .dc-diff {
  margin-top: 24px;
  max-width: 40rem;
  border: 1px solid var(--dc-paper-rule);
  border-radius: var(--sr-radius);
  background: var(--dc-paper-soft);
}

.page-disclaimer .dc-diff summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  padding: 14px 16px;
  cursor: pointer;
  list-style: none;
  font-family: var(--sr-display);
  font-size: var(--sr-fs-sm);
  letter-spacing: .08em;
  color: var(--sr-press);
}

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

.page-disclaimer .dc-diff summary::after {
  content: "＋";
  font-family: var(--sr-mono);
  font-size: 1rem;
  color: var(--sr-press);
}

.page-disclaimer .dc-diff[open] summary::after {
  content: "－";
}

.page-disclaimer .dc-diff summary:focus-visible {
  outline: 2px solid var(--sr-lake);
  outline-offset: -2px;
}

.page-disclaimer .dc-diff__body {
  padding: 2px 16px 16px;
  border-top: 1px dashed var(--dc-paper-rule);
}

.page-disclaimer .dc-diff__list {
  list-style: none;
  margin: 14px 0 0;
  padding: 0;
  display: grid;
  gap: 10px;
}

.page-disclaimer .dc-diff__list li {
  display: grid;
  grid-template-columns: 20px minmax(0, 1fr);
  gap: 10px;
  font-family: var(--sr-body);
  font-size: var(--sr-fs-sm);
  line-height: 1.72;
  color: var(--dc-paper-text);
}

.page-disclaimer .dc-diff__sign {
  color: var(--sr-press);
  font-weight: 700;
}

/* ---------- 引用清单 ---------- */

.page-disclaimer .dc-cite {
  list-style: none;
  margin: 20px 0 22px;
  padding: 0;
  display: grid;
  gap: 10px;
  max-width: 40rem;
}

.page-disclaimer .dc-cite li {
  display: grid;
  grid-template-columns: 28px minmax(0, 1fr);
  gap: 12px;
  align-items: start;
  padding: 11px 12px;
  border-left: 2px solid var(--sr-press);
  background: rgba(196, 69, 31, .05);
  border-radius: 0 var(--sr-radius) var(--sr-radius) 0;
  font-family: var(--sr-body);
  font-size: var(--sr-fs-sm);
  line-height: 1.74;
  color: var(--dc-paper-text);
  transition: background .18s var(--sr-ease);
}

.page-disclaimer .dc-cite li:hover {
  background: rgba(196, 69, 31, .1);
}

.page-disclaimer .dc-cite__idx {
  font-family: var(--sr-mono);
  font-size: var(--sr-fs-xs);
  font-weight: 700;
  letter-spacing: .08em;
  color: var(--sr-press);
  padding-top: 3px;
}

/* ---------- 状态面板 ---------- */

.page-disclaimer .dc-console-wrap {
  padding-top: 64px;
  padding-bottom: 24px;
}

/* ---------- 响应式 ---------- */

@media (min-width: 620px) {
  .page-disclaimer .dc-phases {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

@media (min-width: 900px) {
  .page-disclaimer .dc-hero {
    padding: calc(var(--sr-header-h) + 82px) 0 68px;
  }

  .page-disclaimer .dc-manual {
    padding: 64px 0 88px;
  }

  .page-disclaimer .dc-chapter {
    grid-template-columns: 210px minmax(0, 1fr);
    gap: 56px;
    padding: 54px 0;
  }

  .page-disclaimer .dc-chapter:first-child {
    padding-top: 0;
  }

  .page-disclaimer .dc-chapter__rail {
    padding-top: 6px;
  }
}

@media (min-width: 1180px) {
  .page-disclaimer .dc-chapter {
    grid-template-columns: 240px minmax(0, 1fr);
    gap: 72px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-disclaimer .dc-jump a,
  .page-disclaimer .dc-phase,
  .page-disclaimer .dc-terms li,
  .page-disclaimer .dc-cite li,
  .page-disclaimer .dc-manual a {
    transition: none;
  }

  .page-disclaimer .dc-jump a:hover,
  .page-disclaimer .dc-phase:hover {
    transform: none;
  }
}