.page-disclaimer {
  --u-shadow: 6px 6px 0 var(--c-line-dark);
  --u-shadow-steel: 6px 6px 0 var(--c-steel);
  background: var(--c-deep);
  color: var(--c-white);
}

/* ---------- 首屏 ---------- */
.page-disclaimer .usage-hero {
  position: relative;
  padding: 40px 0 36px;
  background:
    radial-gradient(120% 80% at 92% -12%, rgba(198, 242, 78, .09), transparent 62%),
    radial-gradient(90% 70% at 0% 4%, rgba(47, 122, 114, .24), transparent 66%),
    var(--c-deep);
  border-bottom: var(--border-w) solid var(--c-line-dark);
}

.page-disclaimer .usage-hero h1 {
  margin: 0.18em 0 0.4em;
  font-size: clamp(1.9rem, 7.4vw, 3.9rem);
  line-height: 1.04;
  letter-spacing: 0.02em;
}

.page-disclaimer .usage-hero .lead {
  max-width: 62ch;
  margin: 0 0 22px;
  color: var(--c-moss);
}

.page-disclaimer .usage-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 20px;
  margin: 0 0 4px;
  padding: 0;
  list-style: none;
  font-family: var(--font-mono);
  font-size: 12.5px;
  font-weight: 600;
  letter-spacing: 0.04em;
  color: var(--c-moss);
}

.page-disclaimer .usage-meta li {
  padding-left: 10px;
  border-left: 2px solid var(--c-steel);
}

.page-disclaimer .usage-hero-figure {
  margin: 30px 0 0;
  overflow: hidden;
  border: var(--border-w) solid var(--c-stone);
  box-shadow: var(--u-shadow);
}

.page-disclaimer .usage-hero-figure img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
  filter: saturate(0.92) contrast(1.06);
}

/* ---------- 章节跳读条 ---------- */
.page-disclaimer .usage-jump {
  position: sticky;
  top: var(--header-h);
  z-index: 6;
  display: flex;
  gap: 8px;
  padding: 10px 16px;
  overflow-x: auto;
  background: #0c1a16;
  border-bottom: 1px solid var(--c-line-dark);
  -webkit-overflow-scrolling: touch;
  scrollbar-width: thin;
}

.page-disclaimer .usage-jump .toc-link {
  flex: 0 0 auto;
  white-space: nowrap;
  padding: 6px 12px;
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: 0.04em;
  color: var(--c-moss);
  text-decoration: none;
  border: 1px solid var(--c-line-soft);
  transition: color var(--dur-fast) var(--ease-mech), border-color var(--dur-fast) var(--ease-mech);
}

.page-disclaimer .usage-jump .toc-link:hover,
.page-disclaimer .usage-jump .toc-link:focus-visible {
  color: var(--c-white);
  border-color: var(--c-steel);
}

.page-disclaimer .usage-jump .toc-link[data-active] {
  color: var(--c-lime);
  border-color: var(--c-lime);
}

/* ---------- 条款卡片 ---------- */
.page-disclaimer .usage-clauses {
  padding: 44px 0 12px;
}

.page-disclaimer .usage-list {
  display: grid;
  gap: 20px;
  margin-top: 26px;
}

.page-disclaimer .usage-clause {
  background: var(--c-panel);
  border: var(--border-w) solid var(--c-stone);
  box-shadow: var(--u-shadow);
  scroll-margin-top: calc(var(--header-h) + 84px);
}

.page-disclaimer .usage-clause:nth-child(3n) {
  border-color: var(--c-line-dark);
}

.page-disclaimer .usage-clause .fold > summary {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px 14px;
  padding: 16px 18px;
  list-style: none;
  cursor: pointer;
}

.page-disclaimer .usage-clause .fold > summary::-webkit-details-marker {
  display: none;
}

.page-disclaimer .clause-no {
  flex: 0 0 auto;
  padding: 3px 8px;
  font-family: var(--font-mono);
  font-size: 12.5px;
  font-weight: 600;
  letter-spacing: 0.1em;
  color: var(--c-lime);
  border: 2px solid var(--c-steel);
}

.page-disclaimer .clause-title {
  flex: 1 1 12ch;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(1.02rem, 2.6vw, 1.34rem);
  letter-spacing: 0.03em;
  line-height: 1.25;
}

.page-disclaimer .clause-badge {
  flex: 0 0 auto;
  padding: 3px 8px;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.06em;
  color: var(--c-moss);
  border: 1px solid var(--c-line-soft);
}

.page-disclaimer .clause-toggle {
  flex: 0 0 auto;
  margin-left: auto;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.06em;
  color: var(--c-steel);
}

.page-disclaimer .usage-clause details:not([open]) .clause-toggle::after {
  content: "展开 ＋";
}

.page-disclaimer .usage-clause details[open] .clause-toggle::after {
  content: "收起 −";
}

.page-disclaimer .clause-list {
  display: grid;
  gap: 12px;
  margin: 0;
  padding: 2px 18px 6px;
  list-style: none;
}

.page-disclaimer .clause-list li {
  position: relative;
  padding-left: 22px;
  font-size: 16px;
  line-height: 1.75;
  color: var(--c-white);
}

.page-disclaimer .clause-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.72em;
  width: 10px;
  height: 3px;
  background: var(--c-steel);
}

.page-disclaimer .clause-list a {
  color: var(--c-lime);
  text-underline-offset: 3px;
}

.page-disclaimer .clause-summary {
  margin: 0;
  padding: 13px 18px 16px;
  font-size: 14px;
  line-height: 1.7;
  color: var(--c-moss);
  border-top: 1px solid var(--c-line-soft);
}

.page-disclaimer .clause-summary::before {
  content: "小结 · ";
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: 0.06em;
  color: var(--c-amber);
}

/* ---------- 查看顺序 ---------- */
.page-disclaimer .usage-order {
  margin-top: 40px;
  border-top: var(--border-w) solid var(--c-line-dark);
  background-image:
    linear-gradient(rgba(10, 31, 26, .05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(10, 31, 26, .05) 1px, transparent 1px);
  background-size: 32px 32px;
}

.page-disclaimer .usage-order .lead {
  max-width: 58ch;
  margin-bottom: 8px;
}

.page-disclaimer .flow-steps {
  display: grid;
  gap: 30px;
  margin: 26px 0 0;
  padding: 0;
  list-style: none;
}

.page-disclaimer .flow-step {
  position: relative;
  display: grid;
  gap: 8px;
}

.page-disclaimer .flow-step + .flow-step::before {
  content: "";
  position: absolute;
  top: -22px;
  left: 31px;
  width: 2px;
  height: 14px;
  background-image: linear-gradient(180deg, var(--c-stone) 0 6px, transparent 6px 12px);
  background-size: 2px 12px;
  background-repeat: repeat-y;
}

.page-disclaimer .flow-mark svg {
  display: block;
  width: 64px;
  height: 64px;
}

.page-disclaimer .flow-node {
  fill: rgba(244, 241, 232, .5);
  stroke: var(--c-stone);
  stroke-width: 3;
  transition: fill var(--dur-mid) var(--ease-mech), stroke var(--dur-mid) var(--ease-mech);
}

.page-disclaimer .flow-num {
  font-family: var(--font-mono);
  font-size: 22px;
  font-weight: 600;
  fill: var(--c-ink);
  transition: fill var(--dur-mid) var(--ease-mech);
}

.page-disclaimer .flow-step .h3 {
  margin: 4px 0 0;
  font-size: 1.06rem;
}

.page-disclaimer .flow-step p {
  margin: 0;
  font-size: 15px;
  line-height: 1.7;
  color: var(--c-ink);
}

.page-disclaimer .flow-steps.is-in .flow-node {
  fill: var(--c-steel);
  stroke: var(--c-steel);
}

.page-disclaimer .flow-steps.is-in .flow-num {
  fill: var(--c-white);
}

.page-disclaimer .flow-steps.is-in .flow-node--2,
.page-disclaimer .flow-steps.is-in .flow-num--2 {
  transition-delay: 120ms;
}

.page-disclaimer .flow-steps.is-in .flow-node--3,
.page-disclaimer .flow-steps.is-in .flow-num--3 {
  transition-delay: 240ms;
}

.page-disclaimer .usage-order .annotation {
  margin: 26px 0 0;
  padding-left: 14px;
  border-left: 2px solid var(--c-steel);
}

/* ---------- 双入口 ---------- */
.page-disclaimer .usage-exits {
  padding: 52px 0 8px;
}

.page-disclaimer .usage-exit-grid {
  display: grid;
  gap: 18px;
  margin-top: 24px;
}

.page-disclaimer .usage-exit {
  display: grid;
  gap: 8px;
  padding: 24px 20px;
  color: var(--c-white);
  text-decoration: none;
  background: var(--c-panel);
  border: var(--border-w) solid var(--c-stone);
  transition: border-color var(--dur-fast) var(--ease-mech),
              transform var(--dur-fast) var(--ease-mech),
              box-shadow var(--dur-fast) var(--ease-mech);
}

.page-disclaimer .usage-exit:hover,
.page-disclaimer .usage-exit:focus-visible {
  border-color: var(--c-lime);
  box-shadow: var(--u-shadow-steel);
  transform: translate(-2px, -2px);
}

.page-disclaimer .exit-no {
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.12em;
  color: var(--c-lime);
}

.page-disclaimer .usage-exit .h3 {
  margin: 0;
  font-size: 1.14rem;
}

.page-disclaimer .usage-exit p {
  margin: 0;
  font-size: 15px;
  line-height: 1.72;
  color: var(--c-moss);
}

.page-disclaimer .exit-go {
  margin-top: 4px;
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: 0.05em;
  color: var(--c-steel);
  transition: color var(--dur-fast) var(--ease-mech);
}

.page-disclaimer .usage-exit:hover .exit-go,
.page-disclaimer .usage-exit:focus-visible .exit-go {
  color: var(--c-lime);
}

/* ---------- 收尾联系 ---------- */
.page-disclaimer .usage-contact {
  padding: 32px 0 68px;
}

.page-disclaimer .usage-contact-inner {
  display: grid;
  gap: 18px;
  padding: 26px 20px;
  background:
    linear-gradient(135deg, rgba(198, 242, 78, .09), rgba(47, 122, 114, .18)),
    var(--c-panel);
  border: var(--border-w) solid var(--c-steel);
}

.page-disclaimer .usage-contact-inner .h3 {
  margin: 0 0 8px;
}

.page-disclaimer .usage-contact-inner p {
  margin: 0;
  max-width: 54ch;
  font-size: 15px;
  line-height: 1.75;
  color: var(--c-moss);
}

.page-disclaimer .usage-contact-links {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

/* ---------- 响应式 ---------- */
@media (min-width: 700px) {
  .page-disclaimer .usage-hero {
    padding: 64px 0 48px;
  }

  .page-disclaimer .usage-jump {
    padding: 12px 28px;
  }

  .page-disclaimer .usage-clauses {
    padding: 60px 0 16px;
  }

  .page-disclaimer .usage-contact-inner {
    padding: 32px 30px;
    grid-template-columns: 1fr auto;
    align-items: center;
  }

  .page-disclaimer .usage-contact-links {
    justify-content: flex-end;
  }
}

@media (min-width: 860px) {
  .page-disclaimer .usage-list {
    gap: 26px;
  }

  .page-disclaimer .usage-clause:nth-child(even) {
    margin-inline-start: 60px;
  }

  .page-disclaimer .usage-clause:nth-child(3) {
    margin-inline-end: 84px;
  }

  .page-disclaimer .usage-clause:nth-child(4) {
    margin-inline-start: 26px;
  }

  .page-disclaimer .flow-steps {
    grid-template-columns: repeat(3, 1fr);
    gap: 36px;
  }

  .page-disclaimer .flow-step + .flow-step::before {
    top: 31px;
    left: -22px;
    width: 34px;
    height: 2px;
    background-image: linear-gradient(90deg, var(--c-stone) 0 6px, transparent 6px 12px);
    background-size: 12px 2px;
    background-repeat: repeat-x;
  }

  .page-disclaimer .usage-exit-grid {
    grid-template-columns: 1fr 1fr;
    gap: 24px;
  }

  .page-disclaimer .usage-exit {
    padding: 28px 26px;
  }
}
<<<END>>>