.page-disclaimer {
  --u-amber-line: rgba(214, 162, 74, .30);
  --u-panel-night: rgba(14, 26, 43, .62);
  --u-panel-teal: rgba(16, 49, 45, .42);
  --u-shadow: 0 18px 40px -28px rgba(0, 0, 0, .9);
  background:
    radial-gradient(120% 60% at 92% 0%, rgba(37, 28, 59, .70) 0%, rgba(37, 28, 59, 0) 62%),
    linear-gradient(180deg, #0B1523 0%, var(--ink) 38%, var(--ink-deep) 100%);
  color: var(--text);
  font-family: var(--sans);
  padding-bottom: clamp(48px, 8vw, 96px);
  overflow-x: hidden;
}

.page-disclaimer .breadcrumb {
  padding-top: clamp(18px, 3vw, 30px);
}

.page-disclaimer .breadcrumb-item {
  display: inline-flex;
  align-items: center;
}

.page-disclaimer .breadcrumb-item + .breadcrumb-item::before {
  content: "/";
  margin: 0 8px;
  color: var(--mist);
  font-family: var(--mono);
}

/* ---------- 首屏 ---------- */
.page-disclaimer .usage-top {
  position: relative;
  padding-bottom: clamp(8px, 2vw, 16px);
}

.page-disclaimer .usage-top::before {
  content: "";
  position: absolute;
  top: -14%;
  right: -18%;
  width: min(78vw, 760px);
  height: min(78vw, 760px);
  background: radial-gradient(circle at 50% 50%, rgba(214, 162, 74, .16) 0%, rgba(214, 162, 74, 0) 68%);
  pointer-events: none;
  z-index: 0;
}

.page-disclaimer .usage-hero {
  position: relative;
  z-index: 1;
  display: grid;
  gap: clamp(22px, 4vw, 44px);
  padding-top: clamp(22px, 4vw, 40px);
}

.page-disclaimer .usage-hero-copy h1 {
  font-family: var(--serif);
  font-weight: 800;
  font-size: clamp(1.95rem, 5.4vw, 3.6rem);
  line-height: 1.18;
  letter-spacing: .01em;
  margin: 0 0 18px;
  color: var(--text);
}

.page-disclaimer .usage-lede {
  margin: 0;
  max-width: 52ch;
  font-size: clamp(.98rem, 1.5vw, 1.08rem);
  line-height: 1.9;
  color: var(--text-dim);
}

.page-disclaimer .usage-hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: clamp(20px, 3vw, 30px);
}

.page-disclaimer .usage-hero-side {
  position: relative;
  border: 1px solid var(--line);
  background: linear-gradient(158deg, rgba(37, 28, 59, .72) 0%, rgba(11, 21, 35, .86) 62%, rgba(16, 49, 45, .55) 100%);
  padding: 18px 16px 14px;
  box-shadow: var(--u-shadow);
}

.page-disclaimer .usage-hero-side::after {
  content: "";
  position: absolute;
  inset: 5px;
  border: 1px solid var(--line-soft);
  pointer-events: none;
}

.page-disclaimer .usage-side-label {
  margin: 0 0 10px;
  font-size: .7rem;
  letter-spacing: .18em;
  color: var(--amber);
  text-transform: uppercase;
}

.page-disclaimer .usage-jump {
  list-style: none;
  margin: 0;
  padding: 0;
  position: relative;
  z-index: 1;
}

.page-disclaimer .usage-jump-link {
  display: flex;
  align-items: baseline;
  gap: 12px;
  padding: 10px 6px;
  border-bottom: 1px solid var(--line-soft);
  color: var(--text-dim);
  text-decoration: none;
  font-size: .9rem;
  line-height: 1.5;
  transition: color .2s var(--ease), background-color .2s var(--ease), padding-left .2s var(--ease);
}

.page-disclaimer .usage-jump li:last-child .usage-jump-link {
  border-bottom: 0;
}

.page-disclaimer .usage-jump-link:hover,
.page-disclaimer .usage-jump-link:focus-visible {
  color: var(--gold);
  background: rgba(214, 162, 74, .08);
  padding-left: 12px;
}

.page-disclaimer .usage-jump-no {
  font-family: var(--mono);
  font-size: .7rem;
  letter-spacing: .08em;
  color: var(--amber);
  flex: none;
}

/* ---------- 步骤区 ---------- */
.page-disclaimer .usage-steps {
  margin-top: clamp(36px, 6vw, 64px);
}

.page-disclaimer .usage-steps-title {
  font-family: var(--serif);
  font-size: clamp(1.2rem, 2.4vw, 1.55rem);
  font-weight: 700;
  letter-spacing: .01em;
  margin: 0 0 clamp(16px, 3vw, 24px);
  padding-left: 14px;
  border-left: 2px solid var(--amber);
  color: var(--sand);
}

.page-disclaimer .usage-map {
  margin: 0;
  position: relative;
  border: 1px solid var(--line);
  background: var(--u-panel-night);
  overflow: hidden;
}

.page-disclaimer .usage-map img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  object-fit: cover;
  aspect-ratio: 2 / 1;
}

.page-disclaimer .usage-map figcaption {
  padding: 10px 14px;
  border-top: 1px solid var(--line-soft);
  font-family: var(--mono);
  font-size: .72rem;
  letter-spacing: .1em;
  color: var(--mist);
}

.page-disclaimer .usage-step-grid {
  display: grid;
  gap: 14px;
  margin-top: clamp(16px, 3vw, 24px);
}

.page-disclaimer .usage-step {
  position: relative;
  border: 1px solid var(--line);
  background: linear-gradient(152deg, rgba(23, 20, 15, .92) 0%, rgba(14, 26, 43, .80) 100%);
  padding: 22px 18px 24px;
  transition: transform .22s var(--ease), border-color .22s var(--ease), background-color .22s var(--ease);
}

.page-disclaimer .usage-step::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, rgba(214, 162, 74, 0) 0%, var(--amber) 45%, rgba(214, 162, 74, 0) 100%);
  opacity: .55;
  transition: opacity .22s var(--ease);
}

.page-disclaimer .usage-step:hover,
.page-disclaimer .usage-step:focus-within {
  transform: translateY(-4px);
  border-color: var(--line-strong);
  background: linear-gradient(152deg, rgba(30, 24, 16, .96) 0%, rgba(16, 49, 45, .55) 100%);
}

.page-disclaimer .usage-step:hover::before {
  opacity: 1;
}

.page-disclaimer .usage-step-no {
  font-family: var(--mono);
  font-size: 1.55rem;
  letter-spacing: .06em;
  color: rgba(214, 162, 74, .55);
  margin: 0 0 10px;
  line-height: 1;
}

.page-disclaimer .usage-step h3 {
  font-family: var(--serif);
  font-size: 1.05rem;
  font-weight: 700;
  margin: 0 0 8px;
  color: var(--sand);
}

.page-disclaimer .usage-step p {
  margin: 0;
  font-size: .9rem;
  line-height: 1.8;
  color: var(--text-dim);
}

/* ---------- 正文条款区 ---------- */
.page-disclaimer .usage-body {
  margin-top: clamp(30px, 5vw, 56px);
}

.page-disclaimer .usage-sec {
  display: grid;
  gap: 8px;
  padding: clamp(24px, 4vw, 40px) 0;
  border-top: 1px solid var(--line-soft);
  scroll-margin-top: 96px;
}

.page-disclaimer .usage-sec-no {
  font-family: var(--mono);
  font-size: 1.6rem;
  line-height: 1;
  letter-spacing: .08em;
  color: rgba(214, 162, 74, .40);
  margin: 0;
}

.page-disclaimer .usage-sec-body h2 {
  font-family: var(--serif);
  font-size: clamp(1.28rem, 2.8vw, 1.85rem);
  font-weight: 700;
  line-height: 1.35;
  letter-spacing: .01em;
  margin: 0 0 14px;
  color: var(--text);
}

.page-disclaimer .usage-sec-body p {
  margin: 0 0 14px;
  max-width: 66ch;
  font-size: .96rem;
  line-height: 1.9;
  color: var(--text-dim);
}

.page-disclaimer .usage-list {
  list-style: none;
  margin: 0 0 16px;
  padding: 0;
  display: grid;
  gap: 10px;
  max-width: 68ch;
}

.page-disclaimer .usage-list li {
  position: relative;
  padding-left: 20px;
  font-size: .94rem;
  line-height: 1.8;
  color: var(--text-dim);
}

.page-disclaimer .usage-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .78em;
  width: 9px;
  height: 1px;
  background: var(--amber);
}

.page-disclaimer .usage-note {
  border-left: 2px solid var(--cinnabar);
  background: linear-gradient(90deg, rgba(91, 32, 43, .30) 0%, rgba(91, 32, 43, .06) 100%);
  padding: 14px 16px;
  font-size: .92rem;
  line-height: 1.85;
  color: var(--sand);
  max-width: none;
}

/* ---------- 两步卡 ---------- */
.page-disclaimer .usage-split {
  display: grid;
  gap: 14px;
  margin-top: 4px;
}

.page-disclaimer .usage-split-card {
  border: 1px solid var(--line);
  border-top: 2px solid var(--amber);
  background: linear-gradient(160deg, rgba(14, 26, 43, .78) 0%, rgba(23, 20, 15, .88) 100%);
  padding: 20px 18px 22px;
}

.page-disclaimer .usage-split-card--wine {
  border-top-color: var(--cinnabar);
  background: linear-gradient(160deg, rgba(91, 32, 43, .34) 0%, rgba(23, 20, 15, .90) 100%);
}

.page-disclaimer .usage-split-tag {
  margin: 0 0 10px;
  font-family: var(--mono);
  font-size: .7rem;
  letter-spacing: .18em;
  color: var(--amber);
}

.page-disclaimer .usage-split-card--wine .usage-split-tag {
  color: #D08A7C;
}

.page-disclaimer .usage-split-card h3 {
  font-family: var(--serif);
  font-size: 1.05rem;
  font-weight: 700;
  margin: 0 0 10px;
  color: var(--sand);
  line-height: 1.45;
}

.page-disclaimer .usage-split-card p {
  margin: 0;
  font-size: .92rem;
  line-height: 1.85;
  color: var(--text-dim);
}

/* ---------- 折叠条款 ---------- */
.page-disclaimer .usage-fold {
  border: 1px solid var(--line);
  background: rgba(16, 49, 45, .18);
  transition: border-color .2s var(--ease), background-color .2s var(--ease);
}

.page-disclaimer .usage-fold + .usage-fold {
  margin-top: 10px;
}

.page-disclaimer .usage-fold[open] {
  border-color: var(--u-amber-line);
  background: rgba(16, 49, 45, .30);
}

.page-disclaimer .usage-fold summary {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 14px 16px;
  cursor: pointer;
  list-style: none;
  font-size: .95rem;
  font-weight: 600;
  color: var(--sand);
  transition: color .2s var(--ease);
}

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

.page-disclaimer .usage-fold summary::before {
  content: "+";
  flex: none;
  width: 1em;
  font-family: var(--mono);
  font-size: 1rem;
  line-height: 1;
  color: var(--amber);
}

.page-disclaimer .usage-fold[open] summary::before {
  content: "−";
}

.page-disclaimer .usage-fold summary:hover,
.page-disclaimer .usage-fold summary:focus-visible {
  color: var(--gold);
}

.page-disclaimer .usage-fold summary:focus-visible {
  outline: 1px solid var(--line-strong);
  outline-offset: -3px;
}

.page-disclaimer .usage-fold-body {
  padding: 0 16px 16px 44px;
  font-size: .92rem;
  line-height: 1.85;
  color: var(--text-dim);
}

/* ---------- 版本条 ---------- */
.page-disclaimer .usage-version {
  margin-top: clamp(32px, 5vw, 52px);
  border: 1px solid var(--line-strong);
  background: linear-gradient(102deg, rgba(214, 162, 74, .16) 0%, rgba(14, 26, 43, .70) 52%, rgba(37, 28, 59, .62) 100%);
  padding: clamp(20px, 3.5vw, 32px);
  display: grid;
  gap: 20px;
  position: relative;
}

.page-disclaimer .usage-version::after {
  content: "";
  position: absolute;
  inset: 5px;
  border: 1px solid var(--line-soft);
  pointer-events: none;
}

.page-disclaimer .usage-version-label {
  margin: 0 0 8px;
  font-size: .68rem;
  letter-spacing: .2em;
  color: var(--amber);
}

.page-disclaimer .usage-version-no {
  margin: 0;
  font-family: var(--mono);
  font-size: clamp(1.6rem, 4.4vw, 2.3rem);
  letter-spacing: .06em;
  color: var(--gold);
  line-height: 1.1;
}

.page-disclaimer .usage-version-desc {
  margin: 10px 0 0;
  font-size: .86rem;
  line-height: 1.7;
  color: var(--text-dim);
}

.page-disclaimer .usage-version-side {
  position: relative;
  z-index: 1;
  border-top: 1px solid var(--line-soft);
  padding-top: 16px;
}

.page-disclaimer .usage-version-key {
  margin: 0 0 6px;
  font-family: var(--mono);
  font-size: .7rem;
  letter-spacing: .16em;
  color: var(--mist);
}

.page-disclaimer .usage-version-mail {
  margin: 0 0 10px;
  font-family: var(--mono);
  font-size: .98rem;
  letter-spacing: .02em;
  word-break: break-all;
}

.page-disclaimer .usage-version-mail a {
  color: var(--gold);
  text-decoration: none;
  border-bottom: 1px solid var(--line-strong);
}

.page-disclaimer .usage-version-mail a:hover {
  color: var(--amber);
}

.page-disclaimer .usage-version-hint {
  margin: 0 0 12px;
  font-size: .84rem;
  line-height: 1.75;
  color: var(--text-dim);
  max-width: 46ch;
}

/* ---------- 返回顶部 ---------- */
.page-disclaimer .usage-backtop {
  margin: clamp(26px, 4vw, 40px) 0 0;
  text-align: right;
}

.page-disclaimer .usage-backtop-link {
  display: inline-block;
  font-size: .74rem;
  letter-spacing: .14em;
  color: var(--mist);
  text-decoration: none;
  border-bottom: 1px solid var(--line-soft);
  padding-bottom: 4px;
  transition: color .2s var(--ease), border-color .2s var(--ease);
}

.page-disclaimer .usage-backtop-link:hover,
.page-disclaimer .usage-backtop-link:focus-visible {
  color: var(--amber);
  border-color: var(--line-strong);
}

/* ---------- 响应式 ---------- */
@media (min-width: 620px) {
  .page-disclaimer .usage-step-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

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

@media (min-width: 860px) {
  .page-disclaimer .usage-hero {
    grid-template-columns: minmax(0, 1.42fr) minmax(250px, .58fr);
    align-items: end;
  }

  .page-disclaimer .usage-hero-side {
    padding: 22px 20px 18px;
    align-self: end;
  }

  .page-disclaimer .usage-step-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    align-items: start;
  }

  .page-disclaimer .usage-step:nth-child(2) {
    margin-top: 22px;
  }

  .page-disclaimer .usage-step:nth-child(3) {
    margin-top: 44px;
    margin-bottom: 44px;
  }

  .page-disclaimer .usage-sec {
    grid-template-columns: 96px minmax(0, 1fr);
    gap: clamp(16px, 3vw, 36px);
    padding: clamp(28px, 3.4vw, 44px) 0;
  }

  .page-disclaimer .usage-sec-no {
    font-size: 2rem;
    padding-top: 4px;
  }

  .page-disclaimer .usage-version {
    grid-template-columns: minmax(0, 1fr) minmax(280px, .82fr);
    align-items: center;
    gap: clamp(20px, 3vw, 40px);
  }

  .page-disclaimer .usage-version-side {
    border-top: 0;
    border-left: 1px solid var(--line-soft);
    padding-top: 0;
    padding-left: clamp(18px, 3vw, 32px);
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-disclaimer .usage-step,
  .page-disclaimer .usage-jump-link,
  .page-disclaimer .usage-fold,
  .page-disclaimer .usage-backtop-link {
    transition: none;
  }

  .page-disclaimer .usage-step:hover {
    transform: none;
  }
}
<<<END>>>