.page-disclaimer {
  --rc: var(--cyan);
  padding: 22px var(--gutter) 88px;
  color: var(--text);
  font-family: var(--font-body);
}

.page-disclaimer .wrap {
  max-width: 1120px;
  margin-inline: auto;
}

.page-disclaimer a:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 3px;
}

/* ---------- 首屏 ---------- */

.page-disclaimer .rule-hero {
  position: relative;
  padding: 20px 0 30px;
  border-bottom: 1px solid var(--line);
}

.page-disclaimer .rule-hero::after {
  content: "";
  position: absolute;
  top: 22px;
  right: 0;
  width: 72px;
  height: 72px;
  border-top: 1px solid var(--line);
  border-right: 1px solid var(--line);
  pointer-events: none;
}

.page-disclaimer .rule-hero h1 {
  margin: 12px 0 0;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(29px, 6.2vw, 54px);
  line-height: 1.22;
  letter-spacing: .01em;
  max-width: 19ch;
}

.page-disclaimer .rule-hero__lead {
  margin: 18px 0 0;
  max-width: 60ch;
  font-size: 17px;
  line-height: 1.9;
  color: var(--muted);
}

.page-disclaimer .rule-hero__meta {
  margin: 20px 0 0;
  padding: 7px 12px;
  display: inline-block;
  border: 1px solid var(--line);
  background: var(--panel);
  border-radius: var(--radius);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .04em;
  color: var(--cyan);
}

/* ---------- 主视觉 ---------- */

.page-disclaimer .rule-figure {
  position: relative;
  margin: 28px 0 0;
  border: 1px solid var(--line);
  background: var(--panel);
  overflow: hidden;
}

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

.page-disclaimer .rule-figure__tag {
  position: absolute;
  left: 0;
  bottom: 0;
  padding: 7px 12px;
  border-top: 1px solid var(--line);
  border-right: 1px solid var(--line);
  background: var(--ink);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .04em;
  color: var(--cyan);
}

/* ---------- 编号索引 ---------- */

.page-disclaimer .rule-index {
  margin: 22px 0 0;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  padding: 12px;
  border: 1px solid var(--line);
  background: var(--panel);
  border-radius: var(--radius);
}

.page-disclaimer .rule-index__label {
  padding: 0 6px 0 2px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .08em;
  color: var(--muted);
}

.page-disclaimer .rule-index__link {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 8px 12px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--ink);
  color: var(--text);
  font-size: 14px;
  text-decoration: none;
  transition: border-color .18s var(--ease), background .18s var(--ease), color .18s var(--ease);
}

.page-disclaimer .rule-index__link .num {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--cyan);
}

.page-disclaimer .rule-index__link:hover,
.page-disclaimer .rule-index__link:focus-visible {
  border-color: var(--cyan);
  background: rgba(34, 211, 238, .09);
  color: var(--cyan);
}

/* ---------- 规则卡片 ---------- */

.page-disclaimer .rule-stack {
  margin: 32px 0 0;
  display: grid;
  gap: 16px;
}

.page-disclaimer .rule-card {
  position: relative;
  padding: 20px 20px 24px;
  border: 1px solid var(--line);
  border-left: 3px solid var(--rc);
  background: var(--panel);
  border-radius: var(--radius);
  scroll-margin-top: 84px;
  transition: border-color .2s var(--ease);
}

.page-disclaimer .rule-card--a { --rc: var(--cyan); }
.page-disclaimer .rule-card--b { --rc: var(--orange); }
.page-disclaimer .rule-card--c { --rc: var(--violet); }
.page-disclaimer .rule-card--d { --rc: var(--lime); }
.page-disclaimer .rule-card--e { --rc: var(--cyan); }

.page-disclaimer .rule-card:target {
  border-color: var(--rc);
  box-shadow: inset 0 0 0 1px var(--rc);
}

.page-disclaimer .rule-card__aside {
  display: flex;
  align-items: baseline;
  gap: 10px;
  margin-bottom: 14px;
}

.page-disclaimer .rule-card__num {
  font-family: var(--font-mono);
  font-size: 30px;
  font-weight: 700;
  line-height: 1;
  letter-spacing: -.02em;
  color: var(--rc);
  font-variant-numeric: tabular-nums;
}

.page-disclaimer .rule-card__label {
  font-size: 13px;
  letter-spacing: .05em;
  color: var(--muted);
}

.page-disclaimer .rule-card__title {
  margin: 0 0 12px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(18px, 3.4vw, 24px);
  line-height: 1.45;
}

.page-disclaimer .rule-card__body p {
  margin: 0;
  font-size: 16px;
  line-height: 1.85;
  color: var(--text);
  overflow-wrap: anywhere;
}

.page-disclaimer .rule-card__body p a {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(34, 211, 238, .45);
}

.page-disclaimer .rule-card__body p a:hover {
  border-bottom-color: var(--cyan);
}

.page-disclaimer .rule-list {
  list-style: none;
  margin: 16px 0 0;
  padding: 0;
  display: grid;
  gap: 10px;
}

.page-disclaimer .rule-list li {
  position: relative;
  padding-left: 20px;
  font-size: 15px;
  line-height: 1.8;
  color: var(--muted);
}

.page-disclaimer .rule-list li::before {
  content: "";
  position: absolute;
  left: 4px;
  top: .78em;
  width: 6px;
  height: 6px;
  background: var(--rc);
  transform: rotate(45deg);
}

.page-disclaimer .cite-sample {
  margin: 16px 0 0;
  padding: 13px 15px;
  border: 1px dashed var(--line);
  border-radius: var(--radius);
  background: var(--ink);
  font-family: var(--font-mono);
  font-size: 13px;
  line-height: 1.75;
  color: var(--cyan);
  white-space: pre-wrap;
  overflow-x: auto;
}

/* ---------- 结尾提示 ---------- */

.page-disclaimer .rule-note {
  margin: 34px 0 0;
  padding: 22px 20px;
  border: 1px solid var(--line);
  border-top: 3px solid var(--orange);
  background: var(--panel);
  border-radius: var(--radius);
}

.page-disclaimer .rule-note__title {
  margin: 0 0 10px;
  font-family: var(--font-display);
  font-size: 19px;
  font-weight: 700;
}

.page-disclaimer .rule-note p {
  margin: 0;
  max-width: 70ch;
  font-size: 15px;
  line-height: 1.9;
  color: var(--muted);
}

.page-disclaimer .rule-note a {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(34, 211, 238, .45);
}

.page-disclaimer .rule-note a:hover {
  border-bottom-color: var(--cyan);
}

/* ---------- 平板与桌面 ---------- */

@media (min-width: 820px) {

  .page-disclaimer {
    padding-top: 34px;
    padding-bottom: 108px;
  }

  .page-disclaimer .rule-hero {
    padding: 26px 0 38px;
  }

  .page-disclaimer .rule-hero::after {
    width: 108px;
    height: 108px;
  }

  .page-disclaimer .rule-figure {
    margin-top: 36px;
  }

  .page-disclaimer .rule-index {
    margin-top: 26px;
    padding: 14px 16px;
  }

  .page-disclaimer .rule-stack {
    margin-top: 40px;
    gap: 18px;
  }

  .page-disclaimer .rule-card {
    display: grid;
    grid-template-columns: 168px minmax(0, 1fr);
    gap: 0 26px;
    padding: 28px 30px 30px 24px;
  }

  .page-disclaimer .rule-card__aside {
    display: block;
    margin-bottom: 0;
    padding-right: 22px;
    border-right: 1px solid var(--line);
  }

  .page-disclaimer .rule-card__num {
    display: block;
    font-size: 40px;
  }

  .page-disclaimer .rule-card__label {
    display: block;
    margin-top: 10px;
  }

  .page-disclaimer .rule-note {
    margin-top: 42px;
    padding: 26px 30px;
  }
}

@media (min-width: 1120px) {
  .page-disclaimer .rule-hero__lead {
    font-size: 18px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-disclaimer .rule-index__link,
  .page-disclaimer .rule-card {
    transition: none;
  }
}