.page-disclaimer {
  --doc-rule: 2px solid var(--line);
  --doc-gap: clamp(26px, 4vw, 46px);
  --doc-pad: clamp(16px, 3vw, 26px);
  padding-block: clamp(22px, 4vw, 40px) clamp(52px, 9vw, 104px);
  overflow-wrap: break-word;
}

/* 版本带 */
.page-disclaimer .version-band {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px 18px;
  margin-top: 16px;
  padding: 12px var(--doc-pad);
  border: var(--edge) solid var(--line);
  border-left: 6px solid var(--neon);
  border-radius: var(--radius);
  background:
    linear-gradient(100deg, rgba(54, 242, 195, 0.14), rgba(47, 168, 255, 0.06) 46%, transparent 78%),
    var(--panel);
  box-shadow: var(--shadow-step);
}

.page-disclaimer .version-band__flag {
  padding: 3px 8px;
  border: 1px solid rgba(54, 242, 195, 0.45);
  border-radius: 2px;
  font-size: var(--fs-index);
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--neon);
}

.page-disclaimer .version-band__text {
  margin: 0;
  font-family: var(--font-mono);
  font-size: var(--fs-small);
  letter-spacing: 0.04em;
  color: var(--ink);
}

.page-disclaimer .version-band__rail {
  flex: 1 1 120px;
  height: 3px;
  background: repeating-linear-gradient(90deg, var(--struct) 0 8px, transparent 8px 16px);
}

/* 页首 */
.page-disclaimer .doc-head {
  display: grid;
  gap: 26px;
  margin-top: var(--doc-gap);
}

.page-disclaimer .doc-title {
  margin: 0;
  font-size: clamp(2.05rem, 5.4vw, 3.5rem);
  line-height: 1.06;
  font-weight: 900;
  letter-spacing: -0.015em;
  color: var(--ink);
}

.page-disclaimer .doc-title::after {
  content: "";
  display: block;
  width: 74px;
  height: 5px;
  margin-top: 18px;
  background: linear-gradient(90deg, var(--neon), var(--volt));
  border-radius: 2px;
}

.page-disclaimer .doc-lead {
  margin: 18px 0 0;
  max-width: 62ch;
  font-size: var(--fs-body);
  line-height: 1.8;
  color: var(--ink-soft);
}

.page-disclaimer .doc-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 18px;
  margin: 22px 0 0;
  padding: 0;
  list-style: none;
  font-size: var(--fs-small);
  color: var(--ink-soft);
}

.page-disclaimer .doc-meta li {
  display: inline-flex;
  align-items: baseline;
  gap: 8px;
  padding-right: 18px;
  border-right: 1px solid var(--line);
}

.page-disclaimer .doc-meta li:last-child {
  padding-right: 0;
  border-right: 0;
}

.page-disclaimer .doc-meta .mono {
  font-size: var(--fs-index);
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--neon);
}

.page-disclaimer .doc-head__aside {
  margin: 0;
  border: var(--edge) solid var(--line);
  border-radius: var(--radius);
  background: var(--panel);
  box-shadow: var(--shadow-hard);
  overflow: hidden;
}

.page-disclaimer .doc-head__aside img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  aspect-ratio: 2 / 1;
  object-fit: cover;
}

.page-disclaimer .doc-head__aside figcaption {
  padding: 10px var(--doc-pad);
  border-top: var(--edge) solid var(--line);
  font-family: var(--font-mono);
  font-size: var(--fs-index);
  line-height: 1.6;
  letter-spacing: 0.05em;
  color: var(--slate);
}

/* 章节索引 */
.page-disclaimer .doc-toc {
  margin-top: var(--doc-gap);
}

.page-disclaimer .doc-section-head {
  display: flex;
  align-items: baseline;
  gap: 12px;
  margin: 0 0 14px;
  font-size: var(--fs-h3);
  font-weight: 800;
  letter-spacing: 0.01em;
  color: var(--ink);
}

.page-disclaimer .doc-section-head .mono {
  font-size: var(--fs-index);
  letter-spacing: 0.24em;
  color: var(--neon);
}

.page-disclaimer .doc-toc__list {
  list-style: none;
  margin: 0;
  padding: 0;
  border-top: var(--doc-rule);
}

.page-disclaimer .doc-toc__list li {
  border-bottom: var(--doc-rule);
}

.page-disclaimer .doc-toc__list a {
  display: flex;
  align-items: baseline;
  gap: 14px;
  padding: 13px 6px;
  color: var(--ink);
  font-weight: 600;
  text-decoration: none;
  transition: background var(--dur) var(--ease), padding-inline-start var(--dur) var(--ease);
}

.page-disclaimer .doc-toc__list a:hover,
.page-disclaimer .doc-toc__list a:focus-visible {
  background: var(--panel);
  padding-inline-start: 16px;
}

.page-disclaimer .doc-toc__list a:focus-visible {
  outline: 2px solid var(--volt);
  outline-offset: -3px;
}

.page-disclaimer .doc-toc__list .mono {
  font-size: var(--fs-index);
  letter-spacing: 0.18em;
  color: var(--neon);
}

/* 折叠章节 */
.page-disclaimer .doc-body {
  margin-top: var(--doc-gap);
}

.page-disclaimer .fold {
  border: var(--edge) solid var(--line);
  border-radius: var(--radius);
  background: var(--deep);
}

.page-disclaimer .fold + .fold {
  margin-top: 14px;
}

.page-disclaimer .fold[open] {
  box-shadow: var(--shadow-step);
}

.page-disclaimer .fold__sum {
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 14px;
  padding: 15px var(--doc-pad);
  cursor: pointer;
  list-style: none;
  background: var(--panel);
  border-radius: var(--radius);
  transition: background var(--dur) var(--ease);
}

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

.page-disclaimer .fold__sum:hover {
  background: #143454;
}

.page-disclaimer .fold__sum:focus-visible {
  outline: 2px solid var(--volt);
  outline-offset: -3px;
}

.page-disclaimer .fold__no {
  padding: 3px 6px;
  border: 1px solid rgba(54, 242, 195, 0.4);
  border-radius: 2px;
  font-size: var(--fs-index);
  letter-spacing: 0.16em;
  color: var(--neon);
}

.page-disclaimer .fold__title {
  font-size: 1.02rem;
  font-weight: 800;
  letter-spacing: 0.01em;
  color: var(--ink);
}

.page-disclaimer .fold__sign {
  position: relative;
  width: 14px;
  height: 14px;
}

.page-disclaimer .fold__sign::before,
.page-disclaimer .fold__sign::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  top: 6px;
  height: 2px;
  background: var(--neon);
  transition: transform var(--dur) var(--ease);
}

.page-disclaimer .fold__sign::after {
  transform: rotate(90deg);
}

.page-disclaimer .fold[open] .fold__sign::after {
  transform: rotate(0deg);
}

.page-disclaimer .fold__body {
  padding: 18px var(--doc-pad) calc(var(--doc-pad) + 4px);
  border-top: var(--edge) solid var(--line);
}

.page-disclaimer .fold__body p {
  margin: 0 0 14px;
  font-size: var(--fs-body);
  line-height: 1.8;
  color: var(--ink-soft);
}

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

.page-disclaimer .fold__body ul {
  margin: 0 0 14px;
  padding-left: 20px;
  font-size: var(--fs-body);
  line-height: 1.8;
  color: var(--ink-soft);
}

.page-disclaimer .fold__body li {
  margin-bottom: 8px;
}

.page-disclaimer .fold__body li::marker {
  color: var(--neon);
}

.page-disclaimer .fold__body a {
  color: var(--volt);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.page-disclaimer .fold__body a:hover {
  color: var(--neon);
}

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

.page-disclaimer .callout {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 8px 12px;
  padding: 12px 14px;
  border-left: 4px solid var(--flare);
  border-radius: 0 var(--radius) var(--radius) 0;
  background: rgba(255, 107, 69, 0.09);
  font-size: var(--fs-small);
  line-height: 1.75;
  color: var(--ink);
}

.page-disclaimer .callout .mono {
  font-size: var(--fs-index);
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--flare);
}

/* 收束区 */
.page-disclaimer .doc-tail {
  display: grid;
  gap: 16px;
  margin-top: var(--doc-gap);
  padding: clamp(20px, 3vw, 30px);
  border: var(--edge) solid var(--line);
  border-radius: var(--radius);
  background:
    linear-gradient(120deg, rgba(47, 168, 255, 0.14), transparent 62%),
    var(--abyss);
  box-shadow: var(--shadow-neon);
}

.page-disclaimer .doc-tail__text {
  margin: 0;
  max-width: 58ch;
  font-size: var(--fs-body);
  line-height: 1.8;
  color: var(--ink-soft);
}

.page-disclaimer .doc-tail__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

/* 中等屏幕起双列 */
@media (min-width: 900px) {
  .page-disclaimer .doc-head {
    grid-template-columns: minmax(0, 1.12fr) minmax(0, 0.88fr);
    align-items: start;
    gap: 40px;
  }

  .page-disclaimer .doc-toc__list {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    column-gap: 40px;
  }

  .page-disclaimer .doc-tail {
    grid-template-columns: 1fr auto;
    align-items: center;
  }
}

@media (min-width: 1240px) {
  .page-disclaimer .doc-lead {
    font-size: 1.12rem;
  }
}

/* 打印 */
@media print {
  .page-disclaimer {
    padding-block: 0;
  }

  .page-disclaimer .version-band,
  .page-disclaimer .doc-head__aside,
  .page-disclaimer .fold,
  .page-disclaimer .doc-tail {
    box-shadow: none;
  }

  .page-disclaimer .version-band {
    border-color: #333;
    border-left-color: #333;
    background: #fff;
    color: #000;
  }

  .page-disclaimer .doc-toc,
  .page-disclaimer .fold__sign,
  .page-disclaimer .doc-tail__actions {
    display: none;
  }

  .page-disclaimer .fold {
    break-inside: avoid;
    border-color: #333;
  }

  .page-disclaimer .fold__sum {
    background: #fff;
    cursor: default;
  }

  .page-disclaimer .fold__no,
  .page-disclaimer .fold__title {
    color: #000;
    border-color: #666;
  }
}