.page-disclaimer {
  --disc-body: #3A4053;
  --disc-body-strong: #2B3040;
  background: var(--sand);
  color: var(--ink);
  overflow-x: clip;
}

.page-disclaimer [id] {
  scroll-margin-top: calc(var(--header-h) + 26px);
}

/* ---------- 头部 ---------- */
.page-disclaimer .usage-hero {
  position: relative;
  padding: clamp(26px, 5vw, 52px) 0 clamp(22px, 4vw, 38px);
  background:
    radial-gradient(120% 130% at 88% -12%, rgba(255, 106, 43, 0.24), rgba(10, 59, 54, 0) 62%),
    radial-gradient(90% 90% at 4% 104%, rgba(43, 224, 138, 0.14), rgba(10, 59, 54, 0) 58%),
    var(--teal);
  color: var(--sand);
}

.page-disclaimer .usage-hero .breadcrumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  margin: 0 0 clamp(26px, 5vw, 52px);
  font-size: 14px;
  line-height: 1.5;
}

.page-disclaimer .usage-hero .breadcrumb-item {
  color: var(--haze);
  text-decoration: none;
  transition: color 160ms ease;
}

.page-disclaimer .usage-hero .breadcrumb-item:not(.breadcrumb-current):hover {
  color: var(--gold);
}

.page-disclaimer .usage-hero .breadcrumb-current {
  color: var(--paper);
  font-weight: 700;
}

.page-disclaimer .usage-hero .breadcrumb-item + .breadcrumb-item::before {
  content: "/";
  margin-right: 8px;
  color: rgba(201, 196, 232, 0.45);
}

.page-disclaimer .usage-kicker {
  display: flex;
  align-items: center;
  gap: 10px;
  margin: 0 0 16px;
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--gold);
}

.page-disclaimer .usage-kicker::before {
  content: "";
  width: 26px;
  height: 2px;
  background: var(--sunset);
}

.page-disclaimer .usage-hero h1 {
  max-width: 19ch;
  margin: 0 0 18px;
  font-family: var(--font-sans);
  font-size: clamp(30px, 5.4vw, 54px);
  font-weight: 900;
  line-height: 1.18;
  letter-spacing: -0.02em;
  color: var(--paper);
}

.page-disclaimer .usage-hero .lede {
  max-width: 54ch;
  margin: 0 0 clamp(24px, 4vw, 34px);
  font-size: 17px;
  line-height: 1.85;
  color: rgba(245, 239, 230, 0.82);
}

.page-disclaimer .usage-actions {
  display: flex;
  flex-direction: column;
  align-items: stretch;
  gap: 12px;
}

.page-disclaimer .usage-actions .btn {
  text-align: center;
}

/* ---------- 头部通栏视觉 ---------- */
.page-disclaimer .usage-visual {
  margin: 0;
  padding: 0 0 clamp(30px, 5vw, 56px);
  background: var(--teal);
}

.page-disclaimer .usage-visual .media-frame {
  position: relative;
  aspect-ratio: 16 / 5;
  overflow: hidden;
  border-radius: var(--radius);
  border: 1px solid rgba(255, 179, 71, 0.32);
  box-shadow: var(--shadow-deep);
}

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

/* ---------- 章节骨架 ---------- */
.page-disclaimer .usage-section {
  padding: clamp(40px, 6.5vw, 78px) 0;
  border-top: 1px solid rgba(10, 12, 18, 0.08);
}

.page-disclaimer .usage-section--dense {
  padding: clamp(30px, 4.6vw, 52px) 0;
}

.page-disclaimer .usage-section-inner {
  display: grid;
  gap: clamp(16px, 2.6vw, 26px);
}

.page-disclaimer .usage-section-inner > * {
  min-width: 0;
}

.page-disclaimer .usage-head {
  display: flex;
  align-items: baseline;
  gap: 14px;
}

.page-disclaimer .usage-num {
  flex: none;
  font-family: var(--font-mono);
  font-size: clamp(26px, 4vw, 38px);
  font-weight: 600;
  line-height: 1;
  letter-spacing: 0.02em;
  color: transparent;
  -webkit-text-fill-color: transparent;
  -webkit-text-stroke: 1.4px var(--gold);
}

.page-disclaimer .usage-head h2 {
  margin: 0;
  font-size: clamp(22px, 3vw, 30px);
  font-weight: 700;
  line-height: 1.25;
  letter-spacing: -0.01em;
  color: var(--ink);
}

/* ---------- 定义列表 ---------- */
.page-disclaimer .usage-lead {
  max-width: 44ch;
  margin: 0 0 clamp(18px, 3vw, 26px);
  font-size: 17px;
  line-height: 1.85;
  color: var(--disc-body-strong);
}

.page-disclaimer .usage-list {
  display: grid;
  gap: 14px;
  margin: 0;
}

.page-disclaimer .usage-item {
  padding: 4px 0 4px 20px;
  border-left: 2px solid var(--gold);
  transition:
    border-left-width 160ms ease,
    border-left-color 160ms ease,
    padding-left 160ms ease;
}

.page-disclaimer .usage-item:hover,
.page-disclaimer .usage-item:focus-within {
  border-left-width: 5px;
  border-left-color: var(--sunset);
  padding-left: 23px;
}

.page-disclaimer .usage-item dt {
  margin: 0 0 6px;
  font-size: 16px;
  font-weight: 700;
  line-height: 1.45;
  color: var(--ink);
}

.page-disclaimer .usage-item dd {
  max-width: 60ch;
  margin: 0;
  font-size: 16px;
  line-height: 1.82;
  color: var(--disc-body);
}

.page-disclaimer .usage-item dd a {
  color: var(--wine);
  text-decoration: underline;
  text-underline-offset: 3px;
  text-decoration-thickness: 1px;
  transition: color 160ms ease;
}

.page-disclaimer .usage-item dd a:hover {
  color: var(--sunset);
}

/* ---------- 收束说明 ---------- */
.page-disclaimer .usage-note {
  margin: clamp(20px, 3vw, 28px) 0 0;
  padding: 18px 20px;
  border-radius: var(--radius-sm);
  border: 1px solid rgba(11, 23, 51, 0.1);
  background: rgba(11, 23, 51, 0.05);
  font-size: 15px;
  line-height: 1.8;
  color: var(--disc-body);
}

.page-disclaimer .usage-note a {
  color: var(--wine);
  font-weight: 700;
  text-decoration: underline;
  text-underline-offset: 3px;
  text-decoration-thickness: 1px;
  transition: color 160ms ease;
}

.page-disclaimer .usage-note a:hover {
  color: var(--sunset);
}

/* ---------- 收尾分隔带 ---------- */
.page-disclaimer .usage-rule {
  height: 6px;
  background: linear-gradient(90deg, var(--wine) 0%, var(--sunset) 40%, var(--gold) 100%);
}

/* ---------- 桌面端 ---------- */
@media (min-width: 560px) {
  .page-disclaimer .usage-actions {
    flex-direction: row;
    flex-wrap: wrap;
    align-items: center;
  }
}

@media (min-width: 900px) {
  .page-disclaimer .usage-section-inner {
    grid-template-columns: minmax(160px, 214px) minmax(0, 1fr);
    gap: clamp(32px, 5vw, 72px);
    align-items: start;
  }

  .page-disclaimer .usage-head {
    position: sticky;
    top: calc(var(--header-h) + 28px);
    display: block;
  }

  .page-disclaimer .usage-num {
    display: block;
    margin-bottom: 12px;
  }

  .page-disclaimer .usage-list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 16px 26px;
  }

  .page-disclaimer .usage-section--dense .usage-list {
    grid-template-columns: minmax(0, 1fr);
    gap: 14px;
  }
}
</PAGE_CSS>>>