.page-disclaimer {
  --usage-gold-line: rgba(216, 168, 78, 0.26);
  --usage-soft-shadow: 0 20px 46px -34px rgba(6, 27, 51, 0.55);
  background: var(--ink-900);
  color: var(--text-on-dark);
  overflow-x: hidden;
}

/* ---------- 首屏 ---------- */
.page-disclaimer .usage-hero {
  position: relative;
  padding: clamp(22px, 4vw, 44px) 0 clamp(36px, 6vw, 68px);
  background:
    radial-gradient(900px 460px at 84% -12%, rgba(216, 168, 78, 0.22), transparent 68%),
    radial-gradient(720px 420px at 4% 108%, rgba(127, 174, 154, 0.16), transparent 70%),
    linear-gradient(178deg, var(--ink-800) 0%, var(--ink-900) 62%);
  border-bottom: 1px solid var(--line-dark);
}

.page-disclaimer .usage-crumb {
  margin-bottom: clamp(20px, 3.4vw, 34px);
  font-size: 12px;
  letter-spacing: 0.08em;
}

.page-disclaimer .usage-crumb ul {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  margin: 0;
  padding: 0;
  list-style: none;
  color: var(--text-mute-dark);
}

.page-disclaimer .usage-crumb li + li::before {
  content: "/";
  margin-right: 8px;
  color: rgba(216, 168, 78, 0.6);
}

.page-disclaimer .usage-crumb a {
  color: var(--gold-200);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: border-color 0.22s ease, color 0.22s ease;
}

.page-disclaimer .usage-crumb a:hover,
.page-disclaimer .usage-crumb a:focus-visible {
  color: var(--gold-500);
  border-bottom-color: var(--gold-500);
}

.page-disclaimer .usage-hero__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(22px, 4vw, 42px);
  align-items: end;
}

.page-disclaimer .usage-hero__lead .eyebrow {
  color: var(--gold-500);
  letter-spacing: 0.22em;
  margin: 0 0 14px;
}

.page-disclaimer .usage-hero__lead .display {
  margin: 0 0 clamp(14px, 2vw, 20px);
  font-family: var(--font-display);
  font-weight: 300;
  font-size: clamp(2.5rem, 9vw, 5rem);
  line-height: 0.98;
  letter-spacing: -0.03em;
  color: var(--text-on-dark);
}

.page-disclaimer .usage-hero__lead .lede {
  max-width: 46ch;
  margin: 0 0 clamp(20px, 3vw, 28px);
  color: var(--text-soft-dark);
  line-height: 1.85;
}

.page-disclaimer .usage-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

/* 摘要卡 */
.page-disclaimer .usage-summary {
  position: relative;
  padding: clamp(18px, 3vw, 26px);
  border: 1px solid var(--line-dark);
  border-radius: var(--radius-lg);
  background: linear-gradient(158deg, rgba(20, 80, 122, 0.62) 0%, rgba(11, 45, 79, 0.92) 100%);
  box-shadow: var(--shadow-panel);
  overflow: hidden;
}

.page-disclaimer .usage-summary::before {
  content: "";
  position: absolute;
  inset: 0 auto 0 0;
  width: 3px;
  background: linear-gradient(180deg, var(--gold-500), var(--celadon));
}

.page-disclaimer .usage-summary__title {
  margin: 0 0 14px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--gold-200);
}

.page-disclaimer .usage-summary__list {
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-disclaimer .usage-summary__list li {
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding: 11px 0;
  border-bottom: 1px dashed rgba(216, 168, 78, 0.2);
}

.page-disclaimer .usage-summary__list li:last-child {
  border-bottom: 0;
  padding-bottom: 0;
}

.page-disclaimer .usage-summary__list li:first-child {
  padding-top: 0;
}

.page-disclaimer .usage-summary__key {
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--text-mute-dark);
}

.page-disclaimer .usage-summary__val {
  font-size: 0.92rem;
  color: var(--text-on-dark);
}

/* 首屏图 */
.page-disclaimer .usage-hero__figure {
  margin: clamp(26px, 4vw, 42px) 0 0;
  border: 1px solid var(--line-dark);
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: rgba(11, 45, 79, 0.5);
}

.page-disclaimer .usage-hero__figure img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
}

/* ---------- 正文区 ---------- */
.page-disclaimer .usage-body {
  background: linear-gradient(180deg, var(--mist) 0%, #EDF2F5 100%);
  color: var(--ink-text);
  padding: clamp(32px, 5.5vw, 72px) 0 clamp(46px, 7vw, 88px);
}

.page-disclaimer .usage-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(22px, 4vw, 44px);
}

/* 目录 */
.page-disclaimer .usage-toc {
  min-width: 0;
}

.page-disclaimer .usage-toc__title {
  margin: 0 0 10px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--ink-500);
}

.page-disclaimer .usage-toc__list {
  display: flex;
  gap: 8px;
  margin: 0;
  padding: 0 0 6px;
  list-style: none;
  overflow-x: auto;
  scrollbar-width: thin;
}

.page-disclaimer .usage-toc__list li {
  flex: 0 0 auto;
}

.page-disclaimer .usage-toc__list a {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 9px 14px;
  border: 1px solid var(--line);
  border-radius: var(--pill);
  background: #FFFFFF;
  color: var(--ink-text);
  font-size: 13px;
  text-decoration: none;
  white-space: nowrap;
  transition: border-color 0.22s ease, color 0.22s ease, background-color 0.22s ease;
}

.page-disclaimer .usage-toc__list a .mono {
  font-size: 11px;
  color: var(--ink-500);
  transition: color 0.22s ease;
}

.page-disclaimer .usage-toc__list a:hover,
.page-disclaimer .usage-toc__list a:focus-visible {
  border-color: var(--gold-500);
  color: var(--ink-900);
  background: #FFFBF2;
}

.page-disclaimer .usage-toc__list a:hover .mono,
.page-disclaimer .usage-toc__list a:focus-visible .mono {
  color: var(--gold-500);
}

/* 条文卡片 */
.page-disclaimer .usage-articles {
  min-width: 0;
}

.page-disclaimer .usage-card {
  margin: 0 0 clamp(16px, 2.4vw, 22px);
  padding: clamp(18px, 3.4vw, 34px);
  background: #FFFFFF;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  scroll-margin-top: 96px;
  transition: border-color 0.25s ease, box-shadow 0.25s ease, transform 0.3s ease;
}

.page-disclaimer .usage-card:hover {
  border-color: rgba(216, 168, 78, 0.75);
  box-shadow: var(--usage-soft-shadow);
}

.page-disclaimer .usage-card__head {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px 14px;
  padding-bottom: 14px;
  margin-bottom: 16px;
  border-bottom: 1px solid var(--line);
}

.page-disclaimer .usage-card__num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 44px;
  height: 30px;
  padding: 0 8px;
  border-radius: var(--radius-sm);
  background: linear-gradient(140deg, var(--ink-700), var(--ink-500));
  color: var(--gold-200);
  font-size: 13px;
  letter-spacing: 0.1em;
}

.page-disclaimer .usage-card__head h2 {
  flex: 1 1 auto;
  min-width: 0;
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(1.1rem, 2.5vw, 1.42rem);
  font-weight: 700;
  line-height: 1.35;
  letter-spacing: -0.01em;
  color: var(--ink-900);
}

.page-disclaimer .usage-card__head .tag {
  flex: 0 0 auto;
}

.page-disclaimer .usage-card__body p {
  margin: 0 0 14px;
  line-height: 1.85;
  color: #2A3A48;
}

.page-disclaimer .usage-card__body > p:last-child {
  margin-bottom: 0;
}

/* 列表 */
.page-disclaimer .usage-list {
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-disclaimer .usage-list li {
  position: relative;
  padding: 9px 0 9px 22px;
  line-height: 1.8;
  color: #2A3A48;
  border-bottom: 1px solid rgba(215, 222, 229, 0.6);
}

.page-disclaimer .usage-list li:last-child {
  border-bottom: 0;
  padding-bottom: 0;
}

.page-disclaimer .usage-list li::before {
  content: "";
  position: absolute;
  left: 2px;
  top: 18px;
  width: 8px;
  height: 8px;
  border-radius: 2px;
  background: var(--gold-500);
  transform: rotate(45deg);
}

.page-disclaimer .usage-list strong {
  color: var(--ink-900);
  font-weight: 700;
  margin-right: 2px;
}

/* 步骤列表 */
.page-disclaimer .usage-steps {
  margin: 0 0 16px;
  padding: 0;
  list-style: none;
  counter-reset: none;
}

.page-disclaimer .usage-steps li {
  display: flex;
  gap: 14px;
  padding: 12px 0;
  border-bottom: 1px dashed rgba(20, 80, 122, 0.16);
}

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

.page-disclaimer .usage-steps__idx {
  flex: 0 0 auto;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 30px;
  height: 30px;
  border-radius: var(--pill);
  border: 1px solid var(--line);
  background: #F4F8FA;
  color: var(--ink-500);
  font-size: 12px;
}

.page-disclaimer .usage-steps li > div {
  min-width: 0;
}

.page-disclaimer .usage-steps strong {
  display: block;
  margin-bottom: 4px;
  color: var(--ink-900);
  font-size: 0.98rem;
}

.page-disclaimer .usage-steps p {
  margin: 0;
  line-height: 1.8;
  color: #2A3A48;
}

/* 提示条 */
.page-disclaimer .usage-note {
  margin: 16px 0 0;
  padding: 14px 16px 14px 18px;
  border-left: 3px solid var(--celadon);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  background: #F1F7F4;
  color: #24333F;
  font-size: 0.92rem;
  line-height: 1.8;
}

.page-disclaimer .usage-card .usage-note {
  margin-bottom: 0;
}

/* 联系方式 */
.page-disclaimer .usage-contact {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 10px;
  margin: 4px 0 0;
}

.page-disclaimer .usage-contact__item {
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding: 14px 16px;
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  background: linear-gradient(150deg, #FFFFFF 0%, #F4F8FA 100%);
  transition: border-color 0.22s ease, background-color 0.22s ease;
}

.page-disclaimer .usage-contact__item:hover {
  border-color: var(--gold-500);
  background: #FFFCF5;
}

.page-disclaimer .usage-contact__label {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--ink-500);
}

.page-disclaimer .usage-contact__value {
  color: var(--ink-900);
  font-size: 0.98rem;
  line-height: 1.6;
  word-break: break-word;
  text-decoration: none;
}

.page-disclaimer a.usage-contact__value {
  border-bottom: 1px solid transparent;
  transition: border-color 0.22s ease, color 0.22s ease;
}

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

.page-disclaimer .usage-links {
  margin: 16px 0 0;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 6px 14px;
  font-size: 0.92rem;
  color: #4A5A68;
}

.page-disclaimer .usage-links a {
  color: var(--ink-700);
  text-decoration: none;
  border-bottom: 1px solid var(--line);
  padding-bottom: 1px;
  transition: color 0.22s ease, border-color 0.22s ease;
}

.page-disclaimer .usage-links a:hover,
.page-disclaimer .usage-links a:focus-visible {
  color: var(--gold-500);
  border-bottom-color: var(--gold-500);
}

/* 回到顶部 */
.page-disclaimer .usage-top {
  margin: 8px 0 0;
  text-align: center;
}

.page-disclaimer .usage-top a {
  display: inline-block;
  padding: 10px 22px;
  border: 1px solid var(--line);
  border-radius: var(--pill);
  color: var(--ink-700);
  font-size: 13px;
  letter-spacing: 0.06em;
  text-decoration: none;
  background: #FFFFFF;
  transition: border-color 0.22s ease, color 0.22s ease, background-color 0.22s ease;
}

.page-disclaimer .usage-top a:hover,
.page-disclaimer .usage-top a:focus-visible {
  border-color: var(--gold-500);
  color: var(--ink-900);
  background: #FFFBF2;
}

/* ---------- 响应式 ---------- */
@media (min-width: 640px) {
  .page-disclaimer .usage-contact {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .page-disclaimer .usage-contact__item:last-child {
    grid-column: 1 / -1;
  }
}

@media (min-width: 960px) {
  .page-disclaimer .usage-hero__grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 4fr);
    gap: clamp(28px, 4vw, 56px);
  }

  .page-disclaimer .usage-layout {
    grid-template-columns: minmax(0, 250px) minmax(0, 1fr);
    align-items: start;
    gap: clamp(28px, 4vw, 56px);
  }

  .page-disclaimer .usage-toc {
    position: sticky;
    top: 100px;
  }

  .page-disclaimer .usage-toc__list {
    flex-direction: column;
    overflow: visible;
    gap: 4px;
    padding-bottom: 0;
  }

  .page-disclaimer .usage-toc__list a {
    width: 100%;
    border-radius: var(--radius-md);
    border-color: transparent;
    background: transparent;
    padding: 9px 12px;
    white-space: normal;
    line-height: 1.5;
  }

  .page-disclaimer .usage-toc__list a:hover,
  .page-disclaimer .usage-toc__list a:focus-visible {
    background: #FFFFFF;
    border-color: var(--line);
  }

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

  .page-disclaimer .usage-contact__item:last-child {
    grid-column: auto;
  }
}

@media (min-width: 1180px) {
  .page-disclaimer .usage-hero__lead .lede {
    font-size: 1.02rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-disclaimer * {
    transition-duration: 0.01ms !important;
  }
}
<<<END>>>