/* ===== 使用指引 / page-disclaimer ===== */

.page-disclaimer {
  --pd-h1: clamp(1.85rem, 5.4vw, 3.4rem);
  --pd-rule: rgba(28, 32, 38, .16);
  --pd-rule-soft: rgba(28, 32, 38, .09);
  --pd-invert-line: rgba(255, 253, 248, .24);
  background: var(--paper);
  color: var(--ink);
}

/* —— 顶部 —— */
.page-disclaimer .guide-top {
  padding-block: clamp(1.5rem, 4vw, 2.75rem) 0;
}

.page-disclaimer .guide-hero {
  max-width: 52rem;
}

.page-disclaimer .guide-hero .eyebrow {
  color: var(--grape);
}

.page-disclaimer .guide-hero h1 {
  margin: .5rem 0 .85rem;
  font-size: var(--pd-h1);
  line-height: 1.14;
  letter-spacing: -.02em;
  font-weight: 800;
  color: var(--lake-deep);
}

.page-disclaimer .guide-hero .lede {
  margin: 0;
  max-width: 44rem;
  font-size: clamp(1rem, 1.3vw, 1.1rem);
  line-height: 1.8;
  color: var(--ink-soft);
}

.page-disclaimer .guide-figure {
  margin: clamp(1.75rem, 4vw, 2.75rem) 0 0;
}

.page-disclaimer .guide-figure img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  aspect-ratio: 1600 / 600;
  object-fit: cover;
  border-radius: var(--r-organic);
  background: var(--lake-mist);
}

/* —— 章节色带 —— */
.page-disclaimer .guide-band {
  padding-block: clamp(2.25rem, 5vw, 4rem);
}

.page-disclaimer .guide-band--paper { background: var(--paper); }
.page-disclaimer .guide-band--deep { background: var(--paper-deep); }
.page-disclaimer .guide-band--mist { background: var(--lake-mist); }

.page-disclaimer .guide-band--lake {
  background: var(--lake-deep);
  color: var(--highlight);
}

.page-disclaimer .guide-band--lake .section-head__num { color: var(--sand); }
.page-disclaimer .guide-band--lake .section-head__title { color: var(--highlight); }
.page-disclaimer .guide-band--lake .section-head__note { color: rgba(255, 253, 248, .78); }

.page-disclaimer .section-head {
  max-width: 46rem;
}

/* —— 条目清单 —— */
.page-disclaimer .rule-list {
  list-style: none;
  margin: clamp(1.35rem, 3vw, 2rem) 0 0;
  padding: 0;
  border-top: 1px dashed var(--pd-rule);
}

.page-disclaimer .rule-item {
  display: grid;
  grid-template-columns: 2.4rem minmax(0, 1fr);
  gap: .2rem .85rem;
  padding: clamp(1rem, 2.4vw, 1.6rem) 0;
  border-bottom: 1px dashed var(--pd-rule);
  scroll-margin-top: 5.5rem;
  transition: background 200ms var(--ease);
}

.page-disclaimer .rule-item:target {
  background: linear-gradient(90deg, rgba(230, 215, 236, .68), rgba(230, 215, 236, 0) 68%);
}

.page-disclaimer .rule-item__num {
  font-family: var(--font-mono);
  font-size: .8125rem;
  line-height: 1.7;
  letter-spacing: .08em;
  color: var(--grape);
  text-align: right;
  padding-right: .7rem;
  border-right: 1px solid var(--pd-rule-soft);
  transition: color 160ms var(--ease);
}

.page-disclaimer .rule-item:hover .rule-item__num {
  color: var(--sand);
}

.page-disclaimer .rule-item__title {
  margin: 0 0 .35rem;
  font-size: clamp(1.02rem, 1.5vw, 1.18rem);
  font-weight: 700;
  line-height: 1.45;
  letter-spacing: -.01em;
  color: var(--lake-deep);
}

.page-disclaimer .rule-item__text {
  margin: 0;
  max-width: 48rem;
  font-size: 1rem;
  line-height: 1.8;
  color: var(--ink-soft);
}

.page-disclaimer .rule-item__anchor {
  display: inline-block;
  margin-top: .5rem;
  font-family: var(--font-mono);
  font-size: .72rem;
  letter-spacing: .12em;
  color: var(--grape);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: border-color 160ms var(--ease), color 160ms var(--ease);
}

.page-disclaimer .rule-item__anchor:hover,
.page-disclaimer .rule-item__anchor:focus-visible {
  border-bottom-color: currentColor;
  color: var(--sand);
}

/* —— 标签前缀图例 —— */
.page-disclaimer .tag-legend {
  display: grid;
  gap: .8rem;
  margin-top: clamp(1.35rem, 3vw, 2rem);
}

.page-disclaimer .tag-legend__item {
  background: rgba(255, 253, 248, .74);
  border: 1px solid rgba(15, 110, 124, .2);
  border-radius: 20px 20px 20px 6px;
  padding: .95rem 1.1rem;
  transition: background 160ms var(--ease), border-color 160ms var(--ease), box-shadow 160ms var(--ease);
}

.page-disclaimer .tag-legend__item[open] {
  background: var(--highlight);
  border-color: var(--grape);
  box-shadow: var(--shadow-card);
}

.page-disclaimer .tag-legend__summary {
  display: flex;
  align-items: center;
  gap: .6rem;
  cursor: pointer;
  list-style: none;
  font-weight: 700;
  color: var(--lake-deep);
}

.page-disclaimer .tag-legend__summary::-webkit-details-marker { display: none; }
.page-disclaimer .tag-legend__summary::marker { content: ""; }

.page-disclaimer .tag-legend__swatch {
  flex: 0 0 auto;
  width: .85rem;
  height: .85rem;
  border-radius: 4px;
}

.page-disclaimer .tag-legend__swatch--lake { background: var(--lake); }
.page-disclaimer .tag-legend__swatch--grape { background: var(--grape); }
.page-disclaimer .tag-legend__swatch--sand { background: var(--sand); }
.page-disclaimer .tag-legend__swatch--deep { background: var(--lake-deep); }

.page-disclaimer .tag-legend__code {
  font-family: var(--font-mono);
  font-size: .8125rem;
  letter-spacing: .1em;
  color: var(--grape);
  min-width: 2.8rem;
}

.page-disclaimer .tag-legend__lead {
  margin-left: auto;
  font-size: .82rem;
  font-weight: 500;
  color: var(--ink-soft);
  text-align: right;
}

.page-disclaimer .tag-legend__sign {
  flex: 0 0 auto;
  width: 1.1rem;
  text-align: center;
  font-family: var(--font-mono);
  font-size: 1rem;
  color: var(--grape);
}

.page-disclaimer .tag-legend__sign .sign-minus { display: none; }
.page-disclaimer .tag-legend__item[open] .tag-legend__sign .sign-plus { display: none; }
.page-disclaimer .tag-legend__item[open] .tag-legend__sign .sign-minus { display: inline; }

.page-disclaimer .tag-legend__desc {
  margin: .7rem 0 0;
  padding-top: .7rem;
  border-top: 1px dashed var(--pd-rule);
  font-size: .95rem;
  line-height: 1.8;
  color: var(--ink-soft);
}

/* —— 联系卡 —— */
.page-disclaimer .contact-card {
  margin-top: clamp(1.35rem, 3vw, 2rem);
  padding: clamp(1.25rem, 3vw, 2rem);
  background: var(--highlight);
  border-radius: var(--r-organic-alt);
  box-shadow: var(--shadow-card);
}

.page-disclaimer .contact-card__grid {
  display: grid;
  gap: .9rem;
}

.page-disclaimer .contact-card__row {
  display: grid;
  gap: .25rem;
  padding-bottom: .85rem;
  border-bottom: 1px dashed var(--pd-rule);
}

.page-disclaimer .contact-card__row:last-child {
  padding-bottom: 0;
  border-bottom: 0;
}

.page-disclaimer .contact-card__label {
  font-family: var(--font-mono);
  font-size: .72rem;
  letter-spacing: .12em;
  color: var(--lake);
}

.page-disclaimer .contact-card__value {
  font-size: 1rem;
  line-height: 1.7;
  color: var(--ink);
  overflow-wrap: anywhere;
}

.page-disclaimer .contact-card__value--mono {
  font-family: var(--font-mono);
  letter-spacing: .02em;
}

.page-disclaimer .contact-card__foot {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: .8rem 1.25rem;
  margin-top: clamp(1.1rem, 2.5vw, 1.5rem);
  padding-top: clamp(1rem, 2.5vw, 1.4rem);
  border-top: 1px solid var(--pd-rule-soft);
}

.page-disclaimer .contact-card__hint {
  margin: 0;
  max-width: 34rem;
  font-size: .9rem;
  line-height: 1.75;
  color: var(--ink-soft);
}

/* —— 窄屏保护 —— */
@media (max-width: 30rem) {
  .page-disclaimer .rule-item {
    grid-template-columns: 1.9rem minmax(0, 1fr);
    gap: .2rem .7rem;
  }

  .page-disclaimer .rule-item__num {
    padding-right: .5rem;
    font-size: .75rem;
  }

  .page-disclaimer .tag-legend__lead {
    display: none;
  }
}

/* —— 中等屏 —— */
@media (min-width: 46rem) {
  .page-disclaimer .contact-card__grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 1rem 2rem;
  }

  .page-disclaimer .contact-card__row--wide {
    grid-column: 1 / -1;
  }
}

/* —— 宽屏 —— */
@media (min-width: 60rem) {
  .page-disclaimer .rule-item {
    grid-template-columns: 3.2rem minmax(0, 1fr);
    gap: .25rem 1.6rem;
  }

  .page-disclaimer .rule-item__num {
    padding-right: 1.1rem;
  }

  .page-disclaimer .tag-legend {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 1rem;
  }
}

/* —— 动效降级 —— */
@media (prefers-reduced-motion: reduce) {
  .page-disclaimer .rule-item,
  .page-disclaimer .rule-item__num,
  .page-disclaimer .rule-item__anchor,
  .page-disclaimer .tag-legend__item {
    transition: none;
  }
}