/* ============ 使用说明页 · page-disclaimer ============ */
.page-disclaimer {
  --disc-measure: 46rem;
  --disc-lead: clamp(30px, 5vw, 52px);
  background: var(--ivory);
  color: var(--ink);
  overflow-x: clip;
}

/* ---------- 首屏 ---------- */
.page-disclaimer .disc-hero {
  max-width: var(--shell-wide);
  margin-inline: auto;
  padding: clamp(76px, 12vw, 118px) var(--gutter) 0;
}

.page-disclaimer .breadcrumbs {
  margin-bottom: clamp(20px, 3.2vw, 34px);
}

.page-disclaimer .disc-hero__top {
  display: flex;
  flex-direction: column;
  gap: clamp(26px, 4vw, 36px);
}

.page-disclaimer .disc-hero__text .eyebrow {
  margin: 0 0 14px;
  color: var(--brown);
}

.page-disclaimer h1 {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(2.125rem, 7vw, 3.8125rem);
  line-height: 1.08;
  letter-spacing: -0.015em;
  margin: 0 0 clamp(16px, 2.4vw, 22px);
  max-width: 17ch;
  text-wrap: balance;
}

.page-disclaimer .disc-hero__text .lead {
  margin: 0;
  max-width: 38rem;
  font-size: var(--step-20);
  line-height: 1.72;
  color: var(--gray);
}

/* 日期章装饰 */
.page-disclaimer .disc-stamp {
  position: relative;
  flex: none;
  width: 112px;
  height: 112px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 3px;
  border: 1.5px solid var(--orange);
  border-radius: 50%;
  transform: rotate(-8deg);
  color: var(--orange-deep);
  font-family: var(--font-mono);
  text-align: center;
}

.page-disclaimer .disc-stamp::before {
  content: "";
  position: absolute;
  inset: 7px;
  border: 1px dashed var(--rule);
  border-radius: 50%;
}

.page-disclaimer .disc-stamp__top {
  font-size: 10px;
  letter-spacing: 0.18em;
}

.page-disclaimer .disc-stamp__mid {
  font-size: 13px;
  letter-spacing: 0.1em;
  color: var(--brown);
}

.page-disclaimer .disc-stamp__bot {
  font-size: 11px;
  letter-spacing: 0.06em;
}

/* 首屏图 */
.page-disclaimer .disc-hero__figure {
  margin: var(--disc-lead) 0 0;
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: var(--paper);
  box-shadow: var(--shadow-card);
}

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

.page-disclaimer .disc-hero__figure .media-frame__caption {
  margin: 0;
  padding: 14px clamp(18px, 3vw, 26px) 18px;
  font-family: var(--font-mono);
  font-size: var(--step-12);
  letter-spacing: 0.04em;
  color: var(--gray);
  border-top: 1px solid var(--rule);
}

/* ---------- 条目索引 ---------- */
.page-disclaimer .disc-index {
  max-width: var(--shell-wide);
  margin-inline: auto;
  margin-top: var(--disc-lead);
  padding: 0 var(--gutter);
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px 18px;
}

.page-disclaimer .disc-index__label {
  color: var(--brown);
  flex: none;
}

.page-disclaimer .disc-index__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.page-disclaimer .disc-index__list a {
  display: inline-block;
  padding: 8px 16px;
  border: 1px solid var(--rule);
  border-radius: var(--radius-pill);
  background: var(--paper);
  color: var(--ink);
  font-size: var(--step-14);
  text-decoration: none;
  transition: transform 0.24s var(--ease), border-color 0.24s var(--ease), color 0.24s var(--ease), background-color 0.24s var(--ease);
}

.page-disclaimer .disc-index__list a:hover,
.page-disclaimer .disc-index__list a:focus-visible {
  transform: translateY(-3px);
  border-color: var(--orange);
  color: var(--orange-deep);
  background: var(--amber-pale);
}

/* ---------- 正文 ---------- */
.page-disclaimer .disc-body {
  max-width: var(--shell-wide);
  margin-inline: auto;
  padding: var(--disc-lead) var(--gutter) 0;
}

.page-disclaimer .clause {
  max-width: var(--disc-measure);
  margin-inline: auto;
}

.page-disclaimer .clause + .clause {
  margin-top: clamp(38px, 6vw, 62px);
  padding-top: clamp(38px, 6vw, 62px);
  border-top: 1px solid var(--rule);
}

.page-disclaimer .clause__head {
  display: flex;
  align-items: flex-start;
  gap: 12px;
}

.page-disclaimer .clause__mark {
  flex: none;
  margin-top: 3px;
  line-height: 0;
  color: var(--orange);
}

.page-disclaimer .clause__title {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(1.5rem, 3.4vw, 1.9375rem);
  line-height: 1.3;
  letter-spacing: -0.005em;
  margin: 0;
}

.page-disclaimer .clause__list {
  list-style: none;
  margin: clamp(20px, 3vw, 28px) 0 0;
  padding: 0;
  display: grid;
  gap: clamp(15px, 2.2vw, 20px);
}

.page-disclaimer .clause__item {
  position: relative;
  padding-left: 26px;
  font-size: var(--step-16);
  line-height: 1.78;
  color: var(--ink);
  text-wrap: pretty;
}

.page-disclaimer .clause__item::before {
  content: "";
  position: absolute;
  left: 4px;
  top: 0.68em;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--brown);
  opacity: 0.85;
}

/* 关键词高亮 */
.page-disclaimer .mark {
  background: linear-gradient(transparent 64%, var(--amber-pale) 0);
  padding: 0 1px 1px;
  font-weight: 500;
}

/* 正文内链 */
.page-disclaimer .disc-link {
  color: var(--orange-deep);
  text-decoration: underline;
  text-decoration-color: var(--rule);
  text-decoration-thickness: 1px;
  text-underline-offset: 3px;
  transition: color 0.2s var(--ease), text-decoration-color 0.2s var(--ease);
}

.page-disclaimer .disc-link:hover,
.page-disclaimer .disc-link:focus-visible {
  color: var(--orange);
  text-decoration-color: var(--orange);
}

/* 联系提示块 */
.page-disclaimer .disc-note {
  margin-top: clamp(28px, 4vw, 38px);
  padding: clamp(20px, 3.2vw, 28px) clamp(20px, 3.4vw, 32px);
  background: var(--leaf-pale);
  border-radius: var(--radius-md);
  border-left: 4px solid var(--leaf);
}

.page-disclaimer .disc-note__label {
  margin: 0 0 10px;
  color: var(--leaf-deep);
}

.page-disclaimer .disc-note__text {
  margin: 0;
  font-size: var(--step-16);
  line-height: 1.78;
  color: var(--ink);
  word-break: break-word;
}

/* ---------- 回到顶部 ---------- */
.page-disclaimer .disc-back {
  max-width: var(--shell-wide);
  margin-inline: auto;
  padding: clamp(40px, 6vw, 64px) var(--gutter) clamp(60px, 9vw, 104px);
  display: flex;
  justify-content: flex-start;
}

.page-disclaimer .disc-back__link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: var(--step-12);
  letter-spacing: 0.08em;
  color: var(--gray);
  text-decoration: none;
  padding: 8px 0;
  border-bottom: 1px solid var(--rule);
  transition: color 0.22s var(--ease), border-color 0.22s var(--ease);
}

.page-disclaimer .disc-back__link:hover,
.page-disclaimer .disc-back__link:focus-visible {
  color: var(--orange-deep);
  border-color: var(--orange);
}

/* ---------- 响应式 ---------- */
@media (min-width: 760px) {
  .page-disclaimer .disc-hero__top {
    display: grid;
    grid-template-columns: minmax(0, 1fr) auto;
    align-items: start;
    gap: clamp(32px, 5vw, 64px);
  }

  .page-disclaimer .disc-stamp {
    margin-top: 8px;
  }

  .page-disclaimer .disc-hero__text .lead {
    max-width: 40rem;
  }
}

@media (min-width: 1024px) {
  .page-disclaimer .clause {
    margin-inline: clamp(0px, 7vw, 132px) auto;
  }

  .page-disclaimer .disc-back {
    justify-content: flex-end;
  }

  .page-disclaimer .clause__item {
    font-size: var(--step-16);
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-disclaimer .disc-index__list a,
  .page-disclaimer .disc-link,
  .page-disclaimer .disc-back__link {
    transition: none;
  }

  .page-disclaimer .disc-index__list a:hover,
  .page-disclaimer .disc-index__list a:focus-visible {
    transform: none;
  }
}
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