.page-disclaimer {
  --usage-rail-w: 56px;
  --usage-sticky: calc(var(--header-h) + 70px);
  --usage-amber-tint: rgba(255, 109, 0, .10);
  --usage-lime-tint: rgba(0, 230, 118, .07);
}

/* ---------- 首屏 ---------- */
.page-disclaimer .usage-hero {
  padding: clamp(22px, 3.6vw, 40px) 0 clamp(26px, 4.2vw, 52px);
}

.page-disclaimer .usage-hero__inner {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(22px, 3.6vw, 44px);
  align-items: center;
}

.page-disclaimer .usage-hero h1 {
  margin: 10px 0 0;
  font-size: clamp(30px, 5.2vw, 52px);
  line-height: 1.16;
  letter-spacing: -.01em;
  color: var(--text);
}

.page-disclaimer .usage-hero .lead {
  margin: 16px 0 0;
  max-width: 58ch;
  color: var(--muted);
}

.page-disclaimer .usage-hero__facts {
  list-style: none;
  margin: clamp(20px, 3vw, 30px) 0 0;
  padding: 16px 0 0;
  border-top: 1px solid var(--line);
  display: flex;
  flex-wrap: wrap;
  gap: 12px 30px;
}

.page-disclaimer .usage-hero__facts li {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.page-disclaimer .usage-fact__num {
  font-size: 24px;
  font-weight: 700;
  color: var(--lime);
  line-height: 1.1;
}

.page-disclaimer .usage-fact__label {
  font-size: 13px;
  color: var(--muted);
  letter-spacing: .04em;
}

.page-disclaimer .usage-hero__media {
  margin: 0;
  position: relative;
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--line-strong);
  box-shadow: var(--shadow);
  background: linear-gradient(150deg, rgba(27, 42, 94, .9), rgba(10, 17, 40, .95));
}

.page-disclaimer .usage-hero__media img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 10 / 6;
  object-fit: cover;
}

/* ---------- 等宽条目目录 ---------- */
.page-disclaimer .usage-toc {
  position: sticky;
  top: var(--header-h);
  z-index: 4;
  background: rgba(10, 17, 40, .9);
  backdrop-filter: blur(10px);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.page-disclaimer .usage-toc__inner {
  display: flex;
  gap: 8px;
  overflow-x: auto;
  scrollbar-width: thin;
  padding-top: 12px;
  padding-bottom: 12px;
}

.page-disclaimer .usage-toc__item {
  flex: 0 0 auto;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 14px;
  border-radius: 999px;
  border: 1px solid var(--line);
  color: var(--text);
  text-decoration: none;
  font-size: 14px;
  white-space: nowrap;
  transition: border-color var(--dur) var(--ease), color var(--dur) var(--ease), background var(--dur) var(--ease);
}

.page-disclaimer .usage-toc__item:hover,
.page-disclaimer .usage-toc__item:focus-visible {
  border-color: var(--lime);
  color: var(--lime);
  background: var(--tint-lime);
}

.page-disclaimer .usage-toc__item:hover .usage-toc__num,
.page-disclaimer .usage-toc__item:focus-visible .usage-toc__num {
  color: var(--lime);
}

.page-disclaimer .usage-toc__num {
  font-size: 12px;
  color: var(--muted);
  letter-spacing: .1em;
  transition: color var(--dur) var(--ease);
}

/* ---------- 主体与刻度栏 ---------- */
.page-disclaimer .usage-shell {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(20px, 3vw, 36px);
  padding-top: clamp(30px, 5vw, 62px);
  padding-bottom: clamp(34px, 5.5vw, 76px);
}

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

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

/* ---------- 条款 ---------- */
.page-disclaimer .usage-clause {
  position: relative;
  padding: clamp(22px, 3.2vw, 34px) 0 clamp(22px, 3.2vw, 34px) clamp(16px, 2.4vw, 26px);
  border-top: 1px solid var(--line);
  scroll-margin-top: var(--usage-sticky);
}

.page-disclaimer .usage-clause:last-child {
  border-bottom: 1px solid var(--line);
}

.page-disclaimer .usage-clause::before {
  content: "";
  position: absolute;
  left: 0;
  top: clamp(22px, 3.2vw, 34px);
  bottom: clamp(22px, 3.2vw, 34px);
  width: 2px;
  border-radius: 2px;
  background: linear-gradient(180deg, var(--lime), var(--violet));
  opacity: .55;
}

.page-disclaimer .usage-clause__no {
  display: block;
  font-size: 12px;
  letter-spacing: .18em;
  color: var(--lime);
}

.page-disclaimer .usage-clause h2 {
  margin: 8px 0 0;
  font-size: clamp(21px, 3.1vw, 30px);
  line-height: 1.28;
  color: var(--text);
}

.page-disclaimer .usage-clause__lead {
  margin: 12px 0 0;
  max-width: 64ch;
  font-size: 17px;
  line-height: 1.85;
  color: var(--muted);
}

.page-disclaimer .usage-points {
  list-style: none;
  margin: 16px 0 0;
  padding: 0;
  display: grid;
  gap: 12px;
}

.page-disclaimer .usage-points li {
  position: relative;
  padding-left: 20px;
  max-width: 70ch;
  font-size: 17px;
  line-height: 1.85;
  color: var(--text);
}

.page-disclaimer .usage-points li::before {
  content: "";
  position: absolute;
  left: 2px;
  top: .72em;
  width: 7px;
  height: 7px;
  border-radius: 2px;
  background: var(--violet);
  transform: rotate(45deg);
}

.page-disclaimer .usage-points .tag {
  margin-right: 7px;
  vertical-align: 1px;
}

.page-disclaimer .usage-points a {
  color: var(--lime);
  text-decoration: none;
  border-bottom: 1px solid rgba(0, 230, 118, .38);
}

.page-disclaimer .usage-points a:hover,
.page-disclaimer .usage-points a:focus-visible {
  border-bottom-color: var(--lime);
}

/* ---------- 提示条 ---------- */
.page-disclaimer .usage-note {
  margin: 18px 0 0;
  padding: 14px 18px;
  max-width: 72ch;
  border-radius: var(--radius-sm);
  border: 1px solid var(--line);
  border-left: 3px solid var(--lime);
  background: var(--tint-lime);
  font-size: 16px;
  line-height: 1.8;
  color: var(--text);
}

.page-disclaimer .usage-note--amber {
  border-left-color: var(--amber);
  background: var(--usage-amber-tint);
}

.page-disclaimer .usage-note a {
  color: var(--lime);
  text-decoration: none;
  border-bottom: 1px solid rgba(0, 230, 118, .38);
}

.page-disclaimer .usage-note a:hover,
.page-disclaimer .usage-note a:focus-visible {
  border-bottom-color: var(--lime);
}

/* ---------- 状态对照表 ---------- */
.page-disclaimer .status-scroll {
  margin-top: 18px;
  overflow-x: auto;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: linear-gradient(180deg, rgba(27, 42, 94, .55), rgba(10, 17, 40, .25));
}

.page-disclaimer .status-table {
  width: 100%;
  min-width: 620px;
  border-collapse: collapse;
}

.page-disclaimer .status-table caption {
  text-align: left;
  padding: 14px 18px 0;
  color: var(--muted);
  font-size: 14px;
}

.page-disclaimer .status-table th,
.page-disclaimer .status-table td {
  padding: 14px 18px;
  text-align: left;
  vertical-align: top;
  border-bottom: 1px solid var(--line);
  font-size: 16px;
  line-height: 1.75;
  color: var(--text);
}

.page-disclaimer .status-table th {
  font-size: 13px;
  letter-spacing: .08em;
  color: var(--muted);
  font-weight: 600;
}

.page-disclaimer .status-table tbody tr:last-child td {
  border-bottom: 0;
}

.page-disclaimer .status-table td:first-child {
  white-space: nowrap;
  font-weight: 600;
}

.page-disclaimer .status-row {
  transition: background var(--dur) var(--ease);
}

.page-disclaimer .status-row:hover {
  background: var(--usage-lime-tint);
}

.page-disclaimer .status-dot {
  display: inline-block;
  width: 9px;
  height: 9px;
  border-radius: 50%;
  margin-right: 8px;
  vertical-align: 1px;
}

.page-disclaimer .status-dot--full {
  background: var(--lime);
  box-shadow: 0 0 10px rgba(0, 230, 118, .7);
}

.page-disclaimer .status-dot--base {
  background: var(--violet);
}

.page-disclaimer .status-dot--pending {
  background: var(--amber);
}

/* ---------- 版本阶段 ---------- */
.page-disclaimer .usage-stages {
  list-style: none;
  margin: 16px 0 0;
  padding: 0;
  display: grid;
  gap: 14px;
}

.page-disclaimer .usage-stages li {
  padding: 16px 18px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--line);
  background: rgba(27, 42, 94, .35);
}

.page-disclaimer .usage-stages strong {
  display: block;
  margin-bottom: 6px;
  font-size: 15px;
  letter-spacing: .06em;
  color: var(--lime);
}

.page-disclaimer .usage-stages span {
  display: block;
  font-size: 15px;
  line-height: 1.75;
  color: var(--muted);
}

/* ---------- 提交清单 ---------- */
.page-disclaimer .usage-checklist {
  list-style: none;
  margin: 14px 0 0;
  padding: 0;
  display: grid;
  gap: 10px;
}

.page-disclaimer .usage-checklist li {
  display: flex;
  gap: 10px;
  align-items: flex-start;
  padding: 12px 14px;
  border-radius: var(--radius-sm);
  border: 1px dashed var(--line-strong);
  font-size: 16px;
  line-height: 1.7;
  color: var(--text);
}

.page-disclaimer .usage-checklist li::before {
  content: "✓";
  flex: 0 0 auto;
  color: var(--lime);
  font-family: var(--font-mono);
  font-size: 14px;
  line-height: 1.85;
}

/* ---------- 页脚动作 ---------- */
.page-disclaimer .usage-clause__foot {
  margin-top: 16px;
  display: flex;
}

.page-disclaimer .usage-cta {
  margin-top: 22px;
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

/* ---------- 平板及以上 ---------- */
@media (min-width: 720px) {
  .page-disclaimer .usage-stages {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

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

@media (min-width: 880px) {
  .page-disclaimer .usage-hero__inner {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, .85fr);
  }
}

@media (min-width: 940px) {
  .page-disclaimer .usage-shell {
    grid-template-columns: minmax(0, 1fr) var(--usage-rail-w);
    gap: clamp(28px, 4vw, 64px);
  }

  .page-disclaimer .usage-rail {
    display: block;
    position: sticky;
    top: calc(var(--header-h) + 76px);
    align-self: start;
    height: min(58vh, 520px);
    border-left: 1px solid var(--line);
    background-image: repeating-linear-gradient(to bottom, var(--line) 0 1px, transparent 1px 26px);
  }

  .page-disclaimer .usage-rail::after {
    content: "";
    position: absolute;
    left: -1px;
    top: 12%;
    width: 2px;
    height: 68px;
    background: var(--lime);
    box-shadow: 0 0 12px rgba(0, 230, 118, .55);
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-disclaimer .usage-toc__item,
  .page-disclaimer .usage-toc__num,
  .page-disclaimer .status-row {
    transition: none;
  }
}
<<<END>>>