.page-disclaimer {
  --pd-rail: 208px;
  --pd-soft: #C9DAD6;
  background-color: var(--c-night);
  color: var(--c-ink);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.7;
}

.page-disclaimer .num {
  font-family: var(--font-num);
  font-variant-numeric: tabular-nums;
}

/* ---------- 页首标题带 ---------- */

.page-disclaimer .doc-hero {
  position: relative;
  overflow: hidden;
  background-image: linear-gradient(158deg, var(--c-panel) 0%, rgba(14, 42, 37, .38) 46%, var(--c-night) 80%);
  border-bottom: 2px solid var(--c-cyan);
}

.page-disclaimer .doc-hero::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background-image: repeating-linear-gradient(180deg, rgba(56, 242, 208, .055) 0 1px, transparent 1px 7px);
}

.page-disclaimer .doc-hero__inner {
  position: relative;
  z-index: 1;
  display: grid;
  gap: clamp(28px, 5vw, 56px);
  padding-block: clamp(34px, 7vw, 82px) clamp(30px, 5vw, 62px);
}

.page-disclaimer .breadcrumbs {
  margin-bottom: clamp(16px, 3vw, 26px);
}

.page-disclaimer .doc-hero__eyebrow {
  margin: 0 0 14px;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: .16em;
  color: var(--c-cyan);
}

.page-disclaimer .doc-hero__title {
  margin: 0;
  font-family: var(--font-head);
  font-weight: 900;
  font-size: clamp(2rem, 6.6vw, 4.05rem);
  line-height: 1.04;
  letter-spacing: -.02em;
  color: var(--c-ink);
  text-wrap: balance;
}

.page-disclaimer .doc-hero__lead {
  margin: clamp(16px, 2.4vw, 22px) 0 0;
  max-width: 44em;
  font-size: clamp(1rem, 1.4vw, 1.0625rem);
  line-height: 1.75;
  color: var(--pd-soft);
}

.page-disclaimer .doc-hero__facts {
  list-style: none;
  margin: clamp(22px, 3vw, 30px) 0 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 12px 30px;
}

.page-disclaimer .doc-hero__fact {
  display: flex;
  align-items: baseline;
  gap: 7px;
  min-width: 0;
}

.page-disclaimer .doc-hero__fact-val {
  font-family: var(--font-num);
  font-variant-numeric: tabular-nums;
  font-size: 1.4rem;
  font-weight: 600;
  line-height: 1;
  color: var(--c-num);
}

.page-disclaimer .doc-hero__fact-unit {
  font-size: .8rem;
  font-weight: 600;
  color: var(--c-mist);
}

.page-disclaimer .doc-hero__fact-key {
  max-width: 15em;
  font-size: 12px;
  line-height: 1.5;
  letter-spacing: .02em;
  color: var(--c-mist);
}

.page-disclaimer .doc-hero__media {
  margin: 0;
  aspect-ratio: 16 / 9;
  overflow: hidden;
  border: 1px solid var(--c-line);
  border-radius: var(--r-md);
  background-color: var(--c-panel);
  transform: rotate(-.8deg);
}

.page-disclaimer .doc-hero__img {
  display: block;
  width: 100%;
  height: 100%;
  max-width: 100%;
  object-fit: cover;
  object-position: center;
}

/* ---------- 文档双栏骨架 ---------- */

.page-disclaimer .doc-layout {
  display: grid;
  gap: clamp(26px, 5vw, 56px);
  padding-block: clamp(32px, 6vw, 76px) clamp(40px, 7vw, 92px);
}

.page-disclaimer .doc-body {
  min-width: 0;
}

/* ---------- 左侧章节轨道 ---------- */

.page-disclaimer .doc-rail {
  display: none;
}

.page-disclaimer .doc-rail__title {
  margin: 0;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: .18em;
  color: var(--c-dim);
}

.page-disclaimer .doc-rail__list {
  list-style: none;
  margin: 14px 0 0;
  padding: 0;
  display: grid;
  gap: 1px;
  border-left: 1px solid var(--c-line);
}

.page-disclaimer .doc-rail__link {
  display: flex;
  align-items: baseline;
  gap: 10px;
  margin-left: -1px;
  padding: 7px 0 7px 13px;
  border-left: 2px solid transparent;
  color: var(--c-mist);
  font-size: 13px;
  line-height: 1.45;
  text-decoration: none;
  transition: color .25s var(--ease), border-color .25s var(--ease);
}

.page-disclaimer .doc-rail__link:hover,
.page-disclaimer .doc-rail__link:focus-visible {
  color: var(--c-ink);
  border-left-color: var(--c-cyan);
}

.page-disclaimer .doc-rail__num {
  flex: 0 0 auto;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: .06em;
  color: var(--c-dim);
}

/* ---------- 章节正文 ---------- */

.page-disclaimer .doc-section {
  padding-block: clamp(26px, 4vw, 40px);
  border-top: 1px solid var(--c-line);
  scroll-margin-top: 104px;
}

.page-disclaimer .doc-section:first-child {
  border-top: 0;
  padding-top: 0;
}

.page-disclaimer .doc-section__title {
  display: flex;
  align-items: baseline;
  gap: 12px;
  margin: 0 0 clamp(14px, 2vw, 20px);
  font-family: var(--font-head);
  font-weight: 700;
  font-size: clamp(1.2rem, 2.6vw, 1.62rem);
  line-height: 1.28;
  letter-spacing: -.01em;
  color: var(--c-ink);
}

.page-disclaimer .doc-section__num {
  flex: 0 0 auto;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: .08em;
  color: var(--c-dim);
}

.page-disclaimer .doc-section__content {
  max-width: 68ch;
}

.page-disclaimer .doc-section__content p {
  margin: 0 0 1em;
  font-size: 16px;
  line-height: 1.78;
  color: var(--pd-soft);
}

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

.page-disclaimer .doc-section__content a {
  color: var(--c-ink);
  text-decoration: underline;
  text-decoration-color: var(--c-line);
  text-underline-offset: 3px;
  transition: text-decoration-color .2s var(--ease), color .2s var(--ease);
}

.page-disclaimer .doc-section__content a:hover,
.page-disclaimer .doc-section__content a:focus-visible {
  color: var(--c-cyan);
  text-decoration-color: var(--c-cyan);
}

/* ---------- 术语口径展开 ---------- */

.page-disclaimer .term {
  margin-top: clamp(16px, 2.4vw, 22px);
}

.page-disclaimer .term__chip {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 5px 10px;
  border: 1px solid var(--c-line);
  border-radius: var(--r-xs);
  background-color: transparent;
  color: var(--c-mist);
  font-family: var(--font-body);
  font-size: 12px;
  line-height: 1.5;
  letter-spacing: .08em;
  cursor: pointer;
  transition: color .2s var(--ease), border-color .2s var(--ease), background-color .2s var(--ease);
}

.page-disclaimer .term__chip:hover,
.page-disclaimer .term__chip:focus-visible {
  color: var(--c-ink);
  border-color: var(--c-mist);
}

.page-disclaimer .term__chip[aria-expanded="true"] {
  color: var(--c-ink);
  border-color: var(--c-cyan);
  background-color: rgba(56, 242, 208, .08);
}

.page-disclaimer .term__note {
  margin: 10px 0 0;
  max-width: 62ch;
  padding: 12px 14px;
  border-left: 2px solid var(--c-line);
  border-radius: 0 var(--r-xs) var(--r-xs) 0;
  background-color: var(--c-panel);
  color: var(--c-mist);
  font-size: 14px;
  line-height: 1.7;
}

/* ---------- 文档末尾 ---------- */

.page-disclaimer .doc-foot {
  margin: clamp(28px, 4vw, 42px) 0 0;
  padding-top: clamp(18px, 3vw, 26px);
  border-top: 1px solid var(--c-line);
}

.page-disclaimer .doc-foot__top {
  display: inline-block;
  color: var(--c-mist);
  font-size: 13px;
  letter-spacing: .08em;
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color .2s var(--ease), border-color .2s var(--ease);
}

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

/* ---------- 滚动显现 ---------- */

.js .page-disclaimer .doc-section[data-reveal] {
  opacity: 0;
  transform: translateY(12px);
  transition: opacity .32s var(--ease), transform .32s var(--ease);
}

.js .page-disclaimer .doc-section[data-reveal].is-visible {
  opacity: 1;
  transform: translateY(0);
}

/* ---------- 断点 ---------- */

@media (min-width: 900px) {
  .page-disclaimer .doc-hero__inner {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    align-items: center;
    gap: clamp(32px, 5vw, 72px);
  }
}

@media (min-width: 1000px) {
  .page-disclaimer .doc-layout {
    grid-template-columns: var(--pd-rail) minmax(0, 1fr);
    gap: clamp(44px, 6vw, 92px);
  }

  .page-disclaimer .doc-rail {
    display: block;
    position: sticky;
    top: 104px;
    align-self: start;
  }
}

@media (prefers-reduced-motion: reduce) {
  .js .page-disclaimer .doc-section[data-reveal] {
    opacity: 1;
    transform: none;
    transition: opacity .01s linear;
  }

  .page-disclaimer .doc-hero__media {
    transform: none;
  }

  .page-disclaimer .doc-rail__link,
  .page-disclaimer .term__chip,
  .page-disclaimer .doc-foot__top {
    transition: none;
  }
}