.page-disclaimer {
  --doc-rail-h: 54px;
  --doc-guide: clamp(16px, 4vw, 48px);
  position: relative;
  padding-bottom: var(--sp-8);
  color: var(--text);
  background: var(--ink);
}

/* ---------- 引言区 ---------- */
.page-disclaimer .doc-intro {
  position: relative;
  padding: var(--sp-5) 0 var(--sp-7);
  border-bottom: 1px solid var(--line);
  background-image:
    linear-gradient(to right, rgba(38, 52, 77, 0.55) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(38, 52, 77, 0.55) 1px, transparent 1px);
  background-size: 80px 80px;
  background-position: -1px -1px;
}

.page-disclaimer .doc-intro::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background:
    radial-gradient(120% 80% at 12% 0%, rgba(0, 229, 200, 0.07), transparent 62%),
    linear-gradient(180deg, transparent 40%, var(--ink) 100%);
}

.page-disclaimer .doc-intro > .shell {
  position: relative;
  z-index: 1;
}

.page-disclaimer .doc-crumb {
  margin-bottom: var(--sp-4);
}

.page-disclaimer .doc-crumb__sep {
  margin: 0 var(--sp-2);
  color: var(--line);
  font-family: var(--font-mono);
}

.page-disclaimer .doc-banner {
  margin: 0 0 var(--sp-6);
  border: 1px solid var(--line);
  background: var(--panel);
  overflow: hidden;
}

.page-disclaimer .doc-banner img {
  display: block;
  width: 100%;
  height: clamp(150px, 24vw, 250px);
  object-fit: cover;
  object-position: center;
}

.page-disclaimer .doc-intro__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--sp-5);
  align-items: end;
}

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

.page-disclaimer .doc-intro__title {
  margin: var(--sp-2) 0 var(--sp-3);
  font-size: clamp(40px, 8.5vw, 84px);
  line-height: 0.94;
  letter-spacing: -0.01em;
  color: var(--text);
}

.page-disclaimer .doc-intro__desc {
  max-width: 60ch;
  margin: 0;
  color: var(--dim);
}

.page-disclaimer .doc-meta {
  margin: 0;
  padding: 0;
  border-top: 1px solid var(--line);
}

.page-disclaimer .doc-meta__row {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: var(--sp-3);
  padding: var(--sp-2) 0;
  border-bottom: 1px solid var(--line-soft);
}

.page-disclaimer .doc-meta__k {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--muted);
}

.page-disclaimer .doc-meta__v {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.02em;
  color: var(--text);
  text-align: right;
}

/* ---------- 吸顶条款栏与阅读进度 ---------- */
.page-disclaimer .doc-rail {
  position: sticky;
  top: var(--bar-h, 64px);
  z-index: 25;
  background: rgba(10, 18, 32, 0.95);
  border-bottom: 1px solid var(--line);
}

.page-disclaimer .doc-rail__inner {
  display: flex;
  align-items: center;
  gap: var(--sp-4);
  height: var(--doc-rail-h);
  overflow-x: auto;
  overflow-y: hidden;
  scrollbar-width: none;
}

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

.page-disclaimer .doc-rail__label {
  flex: none;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--violet);
  padding-right: var(--sp-3);
  border-right: 1px solid var(--line);
}

.page-disclaimer .doc-nav {
  display: flex;
  align-items: center;
  gap: var(--sp-4);
  white-space: nowrap;
}

.page-disclaimer .doc-nav__link {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--muted);
  text-decoration: none;
  padding: var(--sp-2) 0;
  border-bottom: 2px solid transparent;
  transition: color var(--t-fast) var(--ease), border-color var(--t-fast) var(--ease);
}

.page-disclaimer .doc-nav__link:hover {
  color: var(--text);
  border-bottom-color: var(--cyan);
}

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

.page-disclaimer .doc-progress {
  position: absolute;
  left: 0;
  right: 0;
  bottom: -1px;
  height: 2px;
  background: var(--line-soft);
}

.page-disclaimer .doc-progress__bar {
  display: block;
  width: 100%;
  height: 100%;
  background: var(--cyan);
  transform: scaleX(0);
  transform-origin: 0 50%;
  transition: transform var(--t-base) var(--ease);
}

@keyframes doc-progress-fill {
  from { transform: scaleX(0); }
  to { transform: scaleX(1); }
}

@supports (animation-timeline: scroll()) {
  .page-disclaimer .doc-progress__bar {
    animation-name: doc-progress-fill;
    animation-duration: 1ms;
    animation-fill-mode: both;
    animation-timing-function: linear;
    animation-timeline: scroll(root block);
  }
}

/* ---------- 条款正文 ---------- */
.page-disclaimer .doc-body {
  padding-top: var(--sp-6);
}

.page-disclaimer .clause {
  padding: var(--sp-6) 0;
  border-top: 1px solid var(--line);
  scroll-margin-top: calc(var(--bar-h, 64px) + var(--doc-rail-h) + 16px);
}

.page-disclaimer .clause:first-of-type {
  border-top: 0;
  padding-top: var(--sp-4);
}

.page-disclaimer .clause__head {
  display: flex;
  align-items: baseline;
  gap: var(--sp-3);
}

.page-disclaimer .clause__index {
  flex: none;
  font-family: var(--font-mono);
  font-size: clamp(20px, 3.2vw, 30px);
  letter-spacing: 0.04em;
  color: var(--cyan);
  line-height: 1;
}

.page-disclaimer .clause__title {
  margin: 0;
  font-size: clamp(22px, 4vw, 34px);
  line-height: 1.15;
  letter-spacing: -0.01em;
  color: var(--text);
}

.page-disclaimer .clause__hash {
  flex: none;
  margin-left: auto;
  font-family: var(--font-mono);
  font-size: 14px;
  color: var(--line);
  text-decoration: none;
  transition: color var(--t-fast) var(--ease);
}

.page-disclaimer .clause__hash:hover,
.page-disclaimer .clause__hash:focus-visible {
  color: var(--cyan);
}

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

.page-disclaimer .clause__lede {
  margin: var(--sp-3) 0 0;
  padding: var(--sp-3) var(--sp-4);
  background: var(--panel);
  border-left: 3px solid var(--violet);
  color: var(--dim);
  font-size: 15px;
  line-height: 1.7;
  max-width: 62ch;
}

.page-disclaimer .clause__list {
  margin: var(--sp-4) 0 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: var(--sp-3);
}

.page-disclaimer .clause__item {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--sp-1);
  padding-bottom: var(--sp-3);
  border-bottom: 1px solid var(--line-soft);
}

.page-disclaimer .clause__item:last-child {
  padding-bottom: 0;
  border-bottom: 0;
}

.page-disclaimer .clause__no {
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.08em;
  color: var(--cyan);
}

.page-disclaimer .clause__item p {
  margin: 0;
  max-width: 68ch;
  font-size: 15px;
  line-height: 1.78;
  color: var(--muted);
}

.page-disclaimer .clause__item strong {
  color: var(--text);
  font-weight: 600;
}

.page-disclaimer .clause__item a {
  color: var(--dim);
  text-decoration: none;
  border-bottom: 1px solid var(--cyan);
  transition: color var(--t-fast) var(--ease);
}

.page-disclaimer .clause__item a:hover {
  color: var(--cyan);
}

/* ---------- 收尾 ---------- */
.page-disclaimer .doc-outro {
  margin-top: var(--sp-6);
  padding-top: var(--sp-6);
  border-top: 1px solid var(--line);
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--sp-5);
  align-items: start;
}

.page-disclaimer .doc-outro__list {
  list-style: none;
  margin: var(--sp-3) 0 0;
  padding: 0;
  display: grid;
  gap: var(--sp-2);
}

.page-disclaimer .doc-outro__list li {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: var(--sp-2);
}

.page-disclaimer .doc-outro__list a {
  font-size: 15px;
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: border-color var(--t-fast) var(--ease);
}

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

.page-disclaimer .doc-outro__list span {
  font-size: 13px;
  color: var(--muted);
}

.page-disclaimer .doc-top-btn {
  justify-self: start;
}

/* ---------- 响应式 ---------- */
@media (max-width: 640px) {
  .page-disclaimer .doc-rail__label {
    display: none;
  }

  .page-disclaimer .doc-nav {
    gap: var(--sp-3);
  }

  .page-disclaimer .doc-nav__link {
    font-size: 11px;
  }

  .page-disclaimer .clause__head {
    flex-wrap: wrap;
    align-items: flex-start;
  }

  .page-disclaimer .clause__hash {
    order: 3;
    width: 100%;
    margin-left: 0;
  }
}

@media (min-width: 760px) {
  .page-disclaimer .clause__item {
    grid-template-columns: 76px minmax(0, 1fr);
    gap: var(--sp-4);
    align-items: start;
  }

  .page-disclaimer .clause__no {
    padding-top: 4px;
  }
}

@media (min-width: 900px) {
  .page-disclaimer .doc-intro {
    padding-top: var(--sp-6);
  }

  .page-disclaimer .doc-intro__grid {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, 0.85fr);
    gap: var(--sp-6);
  }

  .page-disclaimer .doc-outro {
    grid-template-columns: minmax(0, 1fr) auto;
    align-items: end;
  }
}
<<<END>>>