.page-disclaimer {
  --disc-edge: 22px;
  --disc-line-x: 4px;
  --disc-gap: clamp(30px, 5vw, 56px);
  padding-bottom: 104px;
}

/* ---------- 面包屑 ---------- */
.page-disclaimer .breadcrumbs {
  margin-top: 14px;
}
.page-disclaimer .breadcrumbs__list {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  margin: 0;
  padding: 0;
  list-style: none;
  font-size: 13px;
  letter-spacing: 0.02em;
}
.page-disclaimer .breadcrumbs__list a {
  color: var(--muted);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color 0.16s ease, border-color 0.16s ease;
}
.page-disclaimer .breadcrumbs__list a:hover {
  color: var(--ink);
  border-bottom-color: var(--teal);
}
.page-disclaimer .breadcrumbs__list a[aria-current="page"] {
  color: var(--teal);
}
.page-disclaimer .breadcrumbs__sep {
  color: var(--muted-dim);
}

/* ---------- 首屏 ---------- */
.page-disclaimer .disc-hero {
  position: relative;
  padding: clamp(26px, 5vw, 54px) 0 clamp(26px, 4vw, 44px);
  border-bottom: 1px solid var(--line);
}
.page-disclaimer .disc-hero::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: -1px;
  height: 2px;
  background: linear-gradient(90deg, var(--red), var(--amber) 44%, var(--teal) 100%);
  opacity: 0.62;
}
.page-disclaimer .disc-hero__eyebrow {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--teal);
}
.page-disclaimer .disc-hero__title {
  margin: 14px 0 0;
  font-family: var(--font-head);
  font-weight: 800;
  font-size: clamp(32px, 7vw, 68px);
  line-height: 1.06;
  letter-spacing: 0.008em;
  color: var(--ink);
}
.page-disclaimer .disc-hero__lead {
  max-width: 720px;
  margin: 18px 0 0;
  font-size: clamp(16px, 1.7vw, 18px);
  line-height: 1.78;
  color: var(--muted);
}

.page-disclaimer .disc-jump {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 26px 0 0;
  padding: 0;
  list-style: none;
}
.page-disclaimer .disc-jump a {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 7px 13px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--glass-fill);
  color: var(--muted);
  font-size: 13px;
  text-decoration: none;
  transition: color 0.16s ease, border-color 0.16s ease;
}
.page-disclaimer .disc-jump a:hover {
  color: var(--ink);
  border-color: var(--teal);
}
.page-disclaimer .disc-jump .mono {
  font-size: 11px;
  letter-spacing: 0.1em;
  color: var(--amber);
}

/* ---------- 章节堆叠 ---------- */
.page-disclaimer .disc-stack {
  display: grid;
  gap: var(--disc-gap);
  padding-top: clamp(30px, 5vw, 52px);
}
.page-disclaimer .disc-section {
  position: relative;
  padding-left: var(--disc-edge);
}
.page-disclaimer .disc-section::before {
  content: "";
  position: absolute;
  left: calc(var(--disc-line-x) - 1px);
  top: 8px;
  bottom: 0;
  width: 2px;
  background: linear-gradient(180deg, var(--line), rgba(34, 48, 76, 0.18));
}
.page-disclaimer .disc-section--last::before {
  background: linear-gradient(180deg, var(--line), transparent);
}
.page-disclaimer .disc-section::after {
  content: "";
  position: absolute;
  left: calc(var(--disc-line-x) - 3.5px);
  top: 10px;
  width: 9px;
  height: 9px;
  box-sizing: border-box;
  border: 2px solid var(--teal);
  border-radius: 50%;
  background: var(--night);
}

.page-disclaimer .disc-head {
  display: block;
}
.page-disclaimer .disc-num {
  display: block;
  margin-bottom: 8px;
  font-size: 12px;
  letter-spacing: 0.2em;
  color: var(--amber);
}
.page-disclaimer .disc-title {
  margin: 0;
  font-family: var(--font-head);
  font-weight: 700;
  font-size: clamp(21px, 3.2vw, 30px);
  line-height: 1.28;
  letter-spacing: 0.012em;
  color: var(--ink);
}

.page-disclaimer .disc-body {
  max-width: 720px;
  margin-top: 14px;
  font-size: 16px;
  line-height: 1.8;
  color: var(--muted);
}
.page-disclaimer .disc-body p {
  margin: 0;
}
.page-disclaimer .disc-body p + p {
  margin-top: 12px;
}
.page-disclaimer .disc-body a {
  color: var(--teal);
  text-decoration: none;
  border-bottom: 1px solid rgba(31, 231, 182, 0.4);
}
.page-disclaimer .disc-body a:hover {
  border-bottom-color: var(--teal);
}
.page-disclaimer .disc-note {
  margin-top: 14px;
  padding-left: 12px;
  border-left: 2px solid var(--line);
  font-size: 14px;
  color: var(--muted-dim);
}

.page-disclaimer .disc-list {
  display: grid;
  gap: 10px;
  margin: 16px 0 0;
  padding: 0;
  list-style: none;
  max-width: 720px;
}
.page-disclaimer .disc-list li {
  position: relative;
  padding-left: 18px;
  font-size: 15.5px;
  line-height: 1.74;
  color: var(--muted);
}
.page-disclaimer .disc-list li::before {
  content: "";
  position: absolute;
  left: 2px;
  top: 0.72em;
  width: 6px;
  height: 6px;
  border-left: 1px solid var(--teal);
  border-bottom: 1px solid var(--teal);
  transform: rotate(-45deg);
}

/* ---------- 时间轴 ---------- */
.page-disclaimer .disc-timeline {
  position: relative;
  display: grid;
  gap: 0;
  max-width: 640px;
  margin: 24px 0 0;
  padding: 0 0 0 var(--disc-edge);
  list-style: none;
}
.page-disclaimer .tl-node {
  position: relative;
  padding: 0 0 22px 0;
}
.page-disclaimer .tl-node::before {
  content: "";
  position: absolute;
  left: calc(var(--disc-line-x) - var(--disc-edge) - 1px);
  top: 4px;
  bottom: 0;
  width: 1px;
  background: var(--line);
}
.page-disclaimer .tl-node:last-child {
  padding-bottom: 0;
}
.page-disclaimer .tl-node:last-child::before {
  background: linear-gradient(180deg, var(--line), transparent);
}
.page-disclaimer .tl-dot {
  position: absolute;
  left: calc(var(--disc-line-x) - var(--disc-edge) - 3.5px);
  top: 8px;
  width: 9px;
  height: 9px;
  box-sizing: border-box;
  border-radius: 50%;
  background: var(--teal);
  box-shadow: 0 0 0 3px rgba(31, 231, 182, 0.14);
}
.page-disclaimer .tl-node--amber .tl-dot {
  background: var(--amber);
  box-shadow: 0 0 0 3px rgba(255, 176, 32, 0.16);
}
.page-disclaimer .tl-head {
  display: flex;
  align-items: baseline;
  gap: 12px;
  flex-wrap: wrap;
}
.page-disclaimer .tl-time {
  font-size: 19px;
  font-variant-numeric: tabular-nums;
  color: var(--ink);
  letter-spacing: 0.02em;
}
.page-disclaimer .tl-label {
  font-size: 13px;
  letter-spacing: 0.08em;
  color: var(--muted-dim);
}
.page-disclaimer .tl-tip {
  max-height: 0;
  margin-top: 0;
  overflow: hidden;
  opacity: 0;
  font-size: 15px;
  line-height: 1.72;
  color: var(--muted);
  transition: max-height 0.28s ease, opacity 0.2s ease, margin-top 0.28s ease;
}
.page-disclaimer .tl-node:hover .tl-tip,
.page-disclaimer .tl-node:focus-within .tl-tip {
  max-height: 140px;
  margin-top: 8px;
  opacity: 1;
}

/* ---------- 中段视觉 ---------- */
.page-disclaimer .disc-visual {
  position: relative;
  margin: 0;
  padding-left: var(--disc-edge);
}
.page-disclaimer .disc-visual img {
  display: block;
  width: 100%;
  height: auto;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  object-fit: cover;
  background: var(--panel);
}
.page-disclaimer .disc-visual figcaption {
  margin-top: 10px;
  font-size: 13px;
  line-height: 1.62;
  color: var(--muted-dim);
}

/* ---------- 导出形式 ---------- */
.page-disclaimer .disc-files {
  display: grid;
  gap: 12px;
  max-width: 720px;
  margin: 18px 0 0;
}
.page-disclaimer .disc-file {
  padding: 16px 18px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--panel);
}
.page-disclaimer .disc-file__icon {
  display: inline-block;
  width: 14px;
  height: 18px;
  box-sizing: border-box;
  border: 1px solid var(--amber);
  border-radius: 1px;
  position: relative;
}
.page-disclaimer .disc-file__icon::after {
  content: "";
  position: absolute;
  left: 3px;
  bottom: 3px;
  width: 6px;
  height: 1px;
  background: var(--amber);
  box-shadow: 0 -3px 0 var(--amber);
}
.page-disclaimer .disc-file__icon--text {
  border-color: var(--teal);
}
.page-disclaimer .disc-file__icon--text::after {
  background: var(--teal);
  box-shadow: 0 -3px 0 var(--teal);
}
.page-disclaimer .disc-file__name {
  margin: 10px 0 0;
  font-family: var(--font-head);
  font-weight: 700;
  font-size: 17px;
  letter-spacing: 0.02em;
  color: var(--ink);
}
.page-disclaimer .disc-file__desc {
  margin: 6px 0 0;
  font-size: 14.5px;
  line-height: 1.72;
  color: var(--muted);
}

/* ---------- 步骤 ---------- */
.page-disclaimer .disc-steps {
  display: grid;
  gap: 12px;
  max-width: 720px;
  margin: 18px 0 0;
  padding: 0;
  list-style: none;
}
.page-disclaimer .disc-steps li {
  display: flex;
  gap: 12px;
  align-items: flex-start;
  font-size: 15.5px;
  line-height: 1.74;
  color: var(--muted);
}
.page-disclaimer .disc-steps__n {
  flex: 0 0 auto;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 22px;
  height: 22px;
  margin-top: 2px;
  border: 1px solid var(--line);
  border-radius: 50%;
  font-size: 12px;
  color: var(--red-soft);
}

/* ---------- 右下返回 ---------- */
.page-disclaimer .disc-return {
  position: fixed;
  right: 14px;
  bottom: 14px;
  z-index: 30;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 9px 15px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--glass-fill);
  color: var(--ink);
  font-size: 13px;
  letter-spacing: 0.04em;
  text-decoration: none;
  backdrop-filter: blur(8px);
  transition: border-color 0.16s ease, color 0.16s ease;
}
.page-disclaimer .disc-return:hover {
  border-color: var(--red);
}
.page-disclaimer .disc-return__mark {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--red);
  box-shadow: 0 0 0 3px rgba(255, 58, 69, 0.18);
}

/* ---------- 桌面端 ---------- */
@media (min-width: 860px) {
  .page-disclaimer {
    --disc-edge: 46px;
    --disc-line-x: 7px;
  }
  .page-disclaimer .disc-files {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 14px;
  }
  .page-disclaimer .disc-timeline {
    max-width: 720px;
  }
  .page-disclaimer .tl-tip {
    font-size: 15.5px;
  }
  .page-disclaimer .disc-return {
    right: 26px;
    bottom: 26px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-disclaimer .tl-tip,
  .page-disclaimer .disc-jump a,
  .page-disclaimer .disc-return {
    transition: none;
  }
}
<<<END>>>