.page-disclaimer {
  --pd-line-soft: rgba(62, 90, 117, .26);
  --pd-rail-w: 216px;
  background: var(--sk-paper);
  color: var(--sk-ink);
}

/* ---------- 首屏 ---------- */
.page-disclaimer .pd-masthead {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  padding: calc(var(--sk-header-h) + clamp(28px, 6vw, 60px)) 0 clamp(34px, 6vw, 62px);
  background: linear-gradient(162deg, var(--sk-deep) 0%, var(--sk-deep-2) 100%);
  color: var(--sk-paper);
}

.page-disclaimer .pd-masthead::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 0;
  background-image:
    linear-gradient(to right, rgba(159, 176, 196, .22) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(159, 176, 196, .22) 1px, transparent 1px);
  background-size: 76px 76px;
  mask-image: radial-gradient(120% 100% at 8% 0%, #000 0%, transparent 76%);
  -webkit-mask-image: radial-gradient(120% 100% at 8% 0%, #000 0%, transparent 76%);
  pointer-events: none;
}

.page-disclaimer .pd-masthead__inner {
  position: relative;
  z-index: 1;
}

.page-disclaimer .pd-crumbs {
  margin-bottom: clamp(22px, 4vw, 34px);
}

.page-disclaimer .pd-eyebrow {
  margin: 0;
  font-size: 12px;
  letter-spacing: .22em;
  text-transform: uppercase;
  color: var(--sk-teal);
}

.page-disclaimer .pd-title {
  margin: 16px 0 0;
  max-width: 17ch;
  font-family: var(--sk-font-display);
  font-weight: 300;
  font-size: clamp(34px, 7.4vw, 66px);
  line-height: 1.06;
  letter-spacing: .005em;
  color: var(--sk-paper);
}

.page-disclaimer .pd-lead {
  margin: 22px 0 0;
  max-width: 62ch;
  font-size: clamp(15px, 1.6vw, 16.5px);
  line-height: 1.82;
  color: var(--sk-mist);
}

.page-disclaimer .pd-facts {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px 24px;
  margin: clamp(28px, 5vw, 44px) 0 0;
  padding: 0;
}

.page-disclaimer .pd-facts__item {
  padding-top: 12px;
  border-top: 1px solid var(--sk-line);
}

.page-disclaimer .pd-facts__item dt {
  font-family: var(--sk-font-mono);
  font-size: 11px;
  letter-spacing: .16em;
  color: var(--sk-mist);
}

.page-disclaimer .pd-facts__item dd {
  margin: 6px 0 0;
  font-size: 15px;
  font-weight: 500;
  color: var(--sk-paper);
}

/* ---------- 主体骨架 ---------- */
.page-disclaimer .pd-body {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(28px, 5vw, 44px);
  padding: clamp(36px, 6vw, 68px) 0 clamp(56px, 9vw, 104px);
}

.page-disclaimer .pd-content {
  min-width: 0;
}

/* ---------- 左栏索引 ---------- */
.page-disclaimer .pd-rail {
  align-self: start;
  padding: 18px 16px;
  border: 1px solid var(--pd-line-soft);
  background: rgba(255, 255, 255, .6);
}

.page-disclaimer .pd-rail__cap {
  margin: 0 0 14px;
  font-size: 11px;
  letter-spacing: .2em;
  text-transform: uppercase;
  color: var(--sk-line);
}

.page-disclaimer .pd-rail__list {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 2px;
}

.page-disclaimer .pd-rail__link {
  display: flex;
  align-items: baseline;
  gap: 10px;
  padding: 9px 10px 9px 8px;
  border-left: 3px solid transparent;
  font-size: 14.5px;
  line-height: 1.4;
  color: var(--sk-deep);
  text-decoration: none;
  transition: background-color .22s var(--sk-ease), border-color .22s var(--sk-ease), color .22s var(--sk-ease);
}

.page-disclaimer .pd-rail__num {
  font-size: 11px;
  letter-spacing: .1em;
  color: var(--sk-teal);
}

.page-disclaimer .pd-rail__link:hover,
.page-disclaimer .pd-rail__link:focus-visible {
  background: rgba(46, 196, 182, .12);
  border-left-color: var(--sk-coral);
}

.page-disclaimer .pd-rail__link.is-active,
.page-disclaimer .pd-rail__link[aria-current="true"] {
  border-left-color: var(--sk-teal);
  background: rgba(46, 196, 182, .14);
  color: var(--sk-deep);
}

.page-disclaimer .pd-rail__note {
  margin: 16px 0 0;
  padding-top: 14px;
  border-top: 1px solid var(--pd-line-soft);
  font-size: 13px;
  line-height: 1.7;
  color: var(--sk-line);
}

/* ---------- 章节 ---------- */
.page-disclaimer .pd-chapter {
  scroll-margin-top: calc(var(--sk-header-h) + 24px);
}

.page-disclaimer .pd-chapter + .pd-chapter {
  margin-top: clamp(42px, 6vw, 74px);
  padding-top: clamp(32px, 5vw, 54px);
  border-top: 1px solid var(--pd-line-soft);
}

.page-disclaimer .pd-chapter__head {
  display: flex;
  align-items: center;
  gap: 12px;
  padding-bottom: 12px;
  border-bottom: 2px solid var(--sk-deep);
}

.page-disclaimer .pd-chapter__head::before {
  content: "";
  flex: 0 0 auto;
  width: 26px;
  height: 3px;
  background: var(--sk-coral);
  transform: skewX(-32deg);
}

.page-disclaimer .pd-chapter__num {
  margin: 0;
  font-size: 12px;
  letter-spacing: .18em;
  color: var(--sk-coral);
}

.page-disclaimer .pd-chapter__title {
  margin: 0;
  font-family: var(--sk-font-display);
  font-weight: 500;
  font-size: clamp(21px, 3.4vw, 30px);
  line-height: 1.25;
  letter-spacing: .01em;
  color: var(--sk-deep);
}

.page-disclaimer .pd-chapter__lead {
  margin: 20px 0 26px;
  max-width: 58ch;
  padding-left: 16px;
  border-left: 3px solid var(--sk-teal);
  font-size: 16px;
  font-weight: 500;
  line-height: 1.78;
  color: var(--sk-ink);
}

/* ---------- 条目列表 ---------- */
.page-disclaimer .pd-list {
  margin: 0;
  padding: 0;
  list-style: none;
  border-top: 1px solid var(--pd-line-soft);
}

.page-disclaimer .pd-item {
  display: grid;
  grid-template-columns: 52px minmax(0, 1fr);
  gap: 10px;
  padding: 15px 12px 15px 4px;
  border-bottom: 1px solid var(--pd-line-soft);
  transition: background-color .2s var(--sk-ease);
}

.page-disclaimer .pd-item:hover {
  background: rgba(46, 196, 182, .09);
}

.page-disclaimer .pd-item__num {
  font-size: 12px;
  letter-spacing: .08em;
  color: var(--sk-teal);
  padding-top: 4px;
}

.page-disclaimer .pd-item__text {
  margin: 0;
  font-size: 15.5px;
  line-height: 1.78;
  color: var(--sk-ink);
}

/* ---------- 版本标识 ---------- */
.page-disclaimer .pd-versions {
  display: grid;
  grid-template-columns: 1fr;
  gap: 14px;
  margin: 0 0 clamp(24px, 4vw, 34px);
}

.page-disclaimer .pd-ver {
  padding: 20px 20px 22px;
  background: #fff;
  border: 1px solid var(--pd-line-soft);
  border-left: 4px solid var(--sk-line);
  transition: transform .24s var(--sk-ease), box-shadow .24s var(--sk-ease), border-color .24s var(--sk-ease);
}

.page-disclaimer .pd-ver--current { border-left-color: var(--sk-teal); }
.page-disclaimer .pd-ver--maintained { border-left-color: var(--sk-coral); }
.page-disclaimer .pd-ver--archived { border-left-color: var(--sk-amber); }

.page-disclaimer .pd-ver:hover {
  transform: translateY(-2px);
  box-shadow: 0 12px 26px rgba(11, 31, 58, .1);
}

.page-disclaimer .pd-ver__title {
  margin: 14px 0 0;
  font-family: var(--sk-font-display);
  font-weight: 500;
  font-size: 17px;
  line-height: 1.4;
  color: var(--sk-deep);
}

.page-disclaimer .pd-ver__text {
  margin: 10px 0 0;
  font-size: 14.5px;
  line-height: 1.75;
  color: var(--sk-ink);
}

.page-disclaimer .pd-ver__meta {
  margin: 16px 0 0;
  padding-top: 12px;
  border-top: 1px dashed var(--pd-line-soft);
  font-size: 12px;
  letter-spacing: .04em;
  color: var(--sk-line);
}

.page-disclaimer .pd-figure {
  margin: 0 0 clamp(22px, 4vw, 30px);
}

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

.page-disclaimer .pd-copystrip {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px 16px;
  padding: 14px 16px;
  margin: 0 0 20px;
  background: var(--sk-deep);
  color: var(--sk-paper);
}

.page-disclaimer .pd-copystrip__label {
  font-size: 11px;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--sk-mist);
}

.page-disclaimer .pd-copystrip__value {
  font-size: 18px;
  letter-spacing: .06em;
  color: var(--sk-teal);
}

.page-disclaimer .pd-copy {
  margin-left: auto;
  padding: 8px 14px;
  font-size: 12px;
  letter-spacing: .08em;
  color: var(--sk-paper);
  background: transparent;
  border: 1px solid var(--sk-line);
  cursor: pointer;
  transition: background-color .2s var(--sk-ease), color .2s var(--sk-ease), border-color .2s var(--sk-ease);
}

.page-disclaimer .pd-copy:hover,
.page-disclaimer .pd-copy:focus-visible {
  background: var(--sk-coral);
  border-color: var(--sk-coral);
  color: var(--sk-deep);
}

.page-disclaimer .pd-copy[data-copied] {
  background: var(--sk-teal);
  border-color: var(--sk-teal);
  color: var(--sk-deep);
}

.page-disclaimer .pd-note {
  margin: 0;
  padding-left: 16px;
  border-left: 3px solid var(--sk-coral-soft);
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--sk-line);
}

/* ---------- 相关入口 ---------- */
.page-disclaimer .pd-next {
  margin-top: clamp(46px, 7vw, 80px);
  padding-top: clamp(28px, 4vw, 40px);
  border-top: 2px solid var(--sk-deep);
}

.page-disclaimer .pd-next__cap {
  margin: 0 0 18px;
  font-size: 11px;
  letter-spacing: .2em;
  text-transform: uppercase;
  color: var(--sk-line);
}

.page-disclaimer .pd-next__list {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  grid-template-columns: 1fr;
  gap: 10px;
}

.page-disclaimer .pd-next__link {
  display: grid;
  grid-template-columns: 30px minmax(0, 1fr);
  grid-template-rows: auto auto;
  gap: 2px 12px;
  padding: 14px 16px;
  border: 1px solid var(--pd-line-soft);
  background: #fff;
  color: var(--sk-deep);
  text-decoration: none;
  transition: transform .22s var(--sk-ease), border-color .22s var(--sk-ease), box-shadow .22s var(--sk-ease);
}

.page-disclaimer .pd-next__link:hover,
.page-disclaimer .pd-next__link:focus-visible {
  transform: translateY(-2px);
  border-color: var(--sk-teal);
  box-shadow: 0 10px 22px rgba(11, 31, 58, .1);
}

.page-disclaimer .pd-next__num {
  grid-row: 1 / span 2;
  font-size: 12px;
  letter-spacing: .1em;
  color: var(--sk-coral);
  padding-top: 3px;
}

.page-disclaimer .pd-next__label {
  font-size: 15px;
  font-weight: 500;
}

.page-disclaimer .pd-next__desc {
  font-size: 13.5px;
  line-height: 1.6;
  color: var(--sk-line);
}

/* ---------- 响应式 ---------- */
@media (min-width: 620px) {
  .page-disclaimer .pd-facts {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .page-disclaimer .pd-next__list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 760px) {
  .page-disclaimer .pd-versions {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (min-width: 940px) {
  .page-disclaimer .pd-body {
    grid-template-columns: var(--pd-rail-w) minmax(0, 1fr);
    gap: clamp(40px, 5vw, 64px);
  }

  .page-disclaimer .pd-rail {
    position: sticky;
    top: calc(var(--sk-header-h) + 24px);
  }

  .page-disclaimer .pd-next__list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 14px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-disclaimer .pd-item,
  .page-disclaimer .pd-ver,
  .page-disclaimer .pd-next__link,
  .page-disclaimer .pd-copy,
  .page-disclaimer .pd-rail__link {
    transition: none;
  }

  .page-disclaimer .pd-ver:hover,
  .page-disclaimer .pd-next__link:hover {
    transform: none;
  }
}