.page-disclaimer {
  --doc-hair: rgba(238, 243, 248, .12);
  --doc-text-soft: rgba(238, 243, 248, .78);
  --doc-square: var(--muted);
  background: var(--ink-0);
  color: var(--fg);
  padding-bottom: clamp(2.5rem, 7vw, 5rem);
}

/* ---------- 面包屑 ---------- */
.page-disclaimer .breadcrumbs {
  padding-top: calc(var(--header-h) + 1.25rem);
  font-size: 13px;
  color: var(--muted);
}

.page-disclaimer .breadcrumbs .container {
  display: flex;
  align-items: center;
  gap: .5rem;
  flex-wrap: wrap;
}

.page-disclaimer .crumb {
  color: var(--muted);
  text-decoration: none;
  letter-spacing: .04em;
}

.page-disclaimer a.crumb:hover {
  color: var(--accent);
}

.page-disclaimer .crumb-sep {
  color: var(--ink-2);
}

/* ---------- 首屏 ---------- */
.page-disclaimer .doc-hero {
  padding: clamp(1.5rem, 4vw, 3rem) 0 clamp(1.25rem, 3vw, 2rem);
}

.page-disclaimer .doc-hero .grid-12 {
  gap: clamp(1.25rem, 3vw, 2.5rem);
  align-items: end;
}

.page-disclaimer .eyebrow {
  margin: 0 0 .75rem;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--accent);
}

.page-disclaimer h1 {
  margin: 0;
  font-family: var(--font-head);
  font-weight: 900;
  font-size: clamp(30px, 8vw, 62px);
  line-height: 1.06;
  letter-spacing: -.02em;
}

.page-disclaimer .lead {
  margin: clamp(1rem, 3vw, 1.5rem) 0 0;
  max-width: 62ch;
  font-size: 16px;
  line-height: 1.78;
  color: var(--doc-text-soft);
}

.page-disclaimer .doc-kv {
  margin: 0;
  display: grid;
  grid-template-columns: 1fr;
  gap: .85rem;
  border-left: 1px solid var(--line-strong);
  padding-left: 1.1rem;
}

.page-disclaimer .doc-kv dt {
  font-size: 11px;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--muted);
}

.page-disclaimer .doc-kv dd {
  margin: .2rem 0 0;
  font-family: var(--font-mono);
  font-size: 15px;
  font-variant-numeric: tabular-nums;
  color: var(--fg);
  word-break: break-word;
}

/* ---------- 目录带 ---------- */
.page-disclaimer .doc-toc {
  position: sticky;
  top: var(--header-h);
  z-index: 6;
  background: linear-gradient(180deg, rgba(6, 23, 38, .97), rgba(6, 23, 38, .86));
  backdrop-filter: blur(10px);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.page-disclaimer .doc-toc-inner {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.page-disclaimer .doc-toc-label {
  flex: 0 0 auto;
  font-size: 11px;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--muted);
}

.page-disclaimer .doc-toc-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  gap: .25rem;
  overflow-x: auto;
  scrollbar-width: none;
  -webkit-overflow-scrolling: touch;
}

.page-disclaimer .doc-toc-list::-webkit-scrollbar {
  display: none;
}

.page-disclaimer .doc-toc-link {
  flex: 0 0 auto;
  display: inline-flex;
  align-items: baseline;
  gap: .45rem;
  padding: .8rem .7rem;
  font-size: 13px;
  color: var(--muted);
  text-decoration: none;
  white-space: nowrap;
  border-bottom: 2px solid transparent;
  transition: color 240ms var(--ease), border-color 240ms var(--ease);
}

.page-disclaimer .doc-toc-link span {
  font-size: 11px;
  letter-spacing: .12em;
}

.page-disclaimer .doc-toc-link:hover,
.page-disclaimer .doc-toc-link.is-current {
  color: var(--fg);
  border-bottom-color: var(--accent);
}

/* ---------- 顶部通栏图 ---------- */
.page-disclaimer .doc-banner {
  margin: clamp(1.25rem, 4vw, 2.5rem) 0 clamp(1rem, 3vw, 2rem);
  width: 100%;
}

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

.page-disclaimer .media-caption {
  margin-top: .75rem;
  font-size: 13px;
  line-height: 1.7;
  color: var(--muted);
  max-width: 68ch;
}

/* ---------- 章节 ---------- */
.page-disclaimer .chapter {
  padding: clamp(2.25rem, 6vw, 4rem) 0 0;
  scroll-margin-top: calc(var(--header-h) + 64px);
}

.page-disclaimer .chapter-band {
  display: block;
  height: 8px;
  width: 100%;
  background: linear-gradient(90deg, var(--accent) 0%, rgba(255, 106, 26, .35) 32%, transparent 72%);
  margin-bottom: clamp(1rem, 3vw, 1.75rem);
}

.page-disclaimer .chapter-head {
  display: grid;
  grid-template-columns: 3rem 1fr;
  column-gap: 1rem;
  row-gap: .55rem;
  margin-bottom: clamp(1.1rem, 3vw, 1.9rem);
}

.page-disclaimer .chapter-num {
  font-size: 13px;
  letter-spacing: .18em;
  color: var(--accent);
  padding-top: .5rem;
}

.page-disclaimer .chapter-title {
  margin: 0;
  font-family: var(--font-head);
  font-weight: 900;
  font-size: clamp(23px, 5.2vw, 40px);
  line-height: 1.12;
  letter-spacing: -.02em;
}

.page-disclaimer .chapter-desc {
  grid-column: 2;
  margin: 0;
  max-width: 52ch;
  font-size: 15px;
  line-height: 1.72;
  color: var(--muted);
}

.page-disclaimer .grid-12 {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(1.1rem, 3vw, 2.25rem);
}

.page-disclaimer .doc-card {
  padding: clamp(1.1rem, 3vw, 1.85rem);
  border-radius: var(--radius);
  border-left: 2px solid var(--accent);
}

.page-disclaimer .doc-card-title {
  margin: 0 0 .85rem;
  font-family: var(--font-head);
  font-weight: 800;
  font-size: clamp(17px, 3.6vw, 21px);
  letter-spacing: -.01em;
  color: var(--fg);
}

.page-disclaimer .doc-card p {
  margin: 0 0 .9rem;
  font-size: 15px;
  line-height: 1.78;
  color: var(--doc-text-soft);
  max-width: 68ch;
}

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

.page-disclaimer .doc-card a {
  color: var(--accent-2);
  text-decoration: none;
  border-bottom: 1px solid rgba(255, 154, 87, .45);
}

.page-disclaimer .doc-card a:hover {
  color: var(--accent);
  border-bottom-color: var(--accent);
}

.page-disclaimer .doc-example {
  padding: .8rem 1rem;
  background: rgba(22, 57, 92, .55);
  border-left: 2px solid var(--accent-2);
  font-size: 14px;
  letter-spacing: .02em;
  color: var(--fg);
  overflow-wrap: anywhere;
}

/* ---------- 要点列表 ---------- */
.page-disclaimer .doc-points {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: .85rem;
}

.page-disclaimer .doc-points li {
  position: relative;
  padding-left: 1.15rem;
  font-size: 14.5px;
  line-height: 1.72;
  color: var(--doc-text-soft);
}

.page-disclaimer .doc-points li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .62em;
  width: 8px;
  height: 8px;
  background: var(--doc-square);
}

.page-disclaimer .doc-points strong {
  color: var(--fg);
  font-weight: 700;
}

/* ---------- 版本号样例 ---------- */
.page-disclaimer .version-sample {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: .7rem;
  margin-top: 1.1rem;
  padding-top: 1.1rem;
  border-top: 1px dashed var(--doc-hair);
}

.page-disclaimer .version-label {
  font-size: 11px;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--muted);
}

.page-disclaimer .version-code {
  font-family: var(--font-mono);
  font-size: clamp(17px, 4vw, 22px);
  font-variant-numeric: tabular-nums;
  letter-spacing: .04em;
  color: var(--accent);
}

.page-disclaimer .copy-btn {
  font-family: inherit;
  font-size: 12.5px;
  letter-spacing: .06em;
  padding: .45rem .85rem;
  color: var(--fg);
  background: transparent;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius);
  cursor: pointer;
  transition: border-color 220ms var(--ease), color 220ms var(--ease);
}

.page-disclaimer .copy-btn:hover {
  border-color: var(--accent);
  color: var(--accent);
}

.page-disclaimer .copy-btn.is-copied {
  border-color: var(--signal);
  color: var(--signal);
}

/* ---------- 折叠面板 ---------- */
.page-disclaimer .doc-accordion-block {
  margin-top: clamp(1.25rem, 4vw, 2.25rem);
}

.page-disclaimer .accordion {
  border-top: 1px solid var(--line);
}

.page-disclaimer .accordion-item {
  border-bottom: 1px solid var(--line);
}

.page-disclaimer .acc-trigger {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 1rem 0;
  background: transparent;
  border: 0;
  text-align: left;
  font-family: inherit;
  font-size: 15.5px;
  font-weight: 700;
  color: var(--fg);
  cursor: pointer;
}

.page-disclaimer .acc-icon {
  flex: 0 0 auto;
  font-family: var(--font-mono);
  font-size: 16px;
  color: var(--accent);
  line-height: 1;
}

.page-disclaimer .acc-icon::before {
  content: "+";
}

.page-disclaimer .acc-trigger[aria-expanded="true"] .acc-icon::before {
  content: "–";
}

.page-disclaimer .acc-panel {
  display: none;
}

.page-disclaimer .acc-trigger[aria-expanded="true"] + .acc-panel {
  display: block;
}

.page-disclaimer .acc-panel-inner {
  padding: 0 0 1.05rem;
  max-width: 68ch;
  font-size: 14.5px;
  line-height: 1.78;
  color: var(--doc-text-soft);
}

/* ---------- 术语与格式 ---------- */
.page-disclaimer .doc-glossary {
  margin: 0;
  display: grid;
  grid-template-columns: 1fr;
  gap: .9rem;
}

.page-disclaimer .doc-glossary-item {
  padding-bottom: .85rem;
  border-bottom: 1px solid var(--line);
}

.page-disclaimer .doc-term {
  font-size: 12px;
  letter-spacing: .14em;
  color: var(--accent-2);
}

.page-disclaimer .doc-def {
  margin: .3rem 0 0;
  font-size: 14.5px;
  line-height: 1.76;
  color: var(--doc-text-soft);
}

.page-disclaimer .doc-def .mono {
  color: var(--fg);
}

/* ---------- 版本说明收束 ---------- */
.page-disclaimer .doc-final {
  padding-top: clamp(2.5rem, 7vw, 4.5rem);
}

.page-disclaimer .version-note {
  padding: clamp(1.25rem, 3.5vw, 2.25rem);
  border-radius: var(--radius);
}

.page-disclaimer .version-note-label {
  margin: 0;
  font-size: 11px;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--muted);
}

.page-disclaimer .version-note-code {
  margin: .7rem 0 0;
  font-family: var(--font-mono);
  font-size: clamp(20px, 5vw, 30px);
  font-variant-numeric: tabular-nums;
  letter-spacing: .02em;
  color: var(--fg);
}

.page-disclaimer .version-note-text {
  margin: 1rem 0 0;
  max-width: 68ch;
  font-size: 15px;
  line-height: 1.78;
  color: var(--doc-text-soft);
}

.page-disclaimer .doc-cta-row {
  display: flex;
  flex-wrap: wrap;
  gap: .7rem;
  margin-top: 1.4rem;
}

/* ---------- 桌面增强 ---------- */
@media (min-width: 900px) {
  .page-disclaimer .doc-kv {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 1.1rem 1.5rem;
  }

  .page-disclaimer .grid-12 {
    grid-template-columns: repeat(12, minmax(0, 1fr));
  }

  .page-disclaimer .grid-12 > .col-main {
    grid-column: span 7;
  }

  .page-disclaimer .grid-12 > .col-aside {
    grid-column: 9 / span 4;
  }

  .page-disclaimer .grid-12 > .col-full {
    grid-column: 1 / -1;
  }

  .page-disclaimer .chapter-head {
    grid-template-columns: 3rem 7fr 4fr;
    column-gap: 1.5rem;
    align-items: start;
  }

  .page-disclaimer .chapter-desc {
    grid-column: 3;
    text-align: left;
  }

  .page-disclaimer .doc-card {
    padding: clamp(1.5rem, 2.6vw, 2.25rem);
  }

  .page-disclaimer .doc-glossary {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 1.1rem 2rem;
  }

  .page-disclaimer .doc-banner {
    margin-top: clamp(1.75rem, 4vw, 3rem);
  }

  .page-disclaimer .doc-cta-row {
    gap: .9rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-disclaimer * {
    transition-duration: 1ms !important;
    animation-duration: 1ms !important;
  }
}