/* ===== 使用说明页 · page-disclaimer ===== */
.page-disclaimer {
  --d-pad: clamp(26px, 4.2vw, 48px);
  overflow-x: clip;
  padding-bottom: clamp(44px, 6vw, 84px);
}

/* ---------- 首屏 ---------- */
.page-disclaimer .legal-hero {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(24px, 4vw, 44px);
  padding: clamp(18px, 3.6vw, 40px) 0 clamp(30px, 5vw, 56px);
  border-bottom: 1px solid var(--line);
  background-image:
    linear-gradient(to right, rgba(143, 184, 198, .07) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(143, 184, 198, .07) 1px, transparent 1px);
  background-size: 48px 48px;
  background-position: -1px -1px;
}

.page-disclaimer .legal-hero h1 {
  margin: 12px 0 0;
  font-size: clamp(30px, 6vw, 52px);
  line-height: 1.18;
  letter-spacing: -0.01em;
  font-weight: 700;
  color: var(--txt-strong);
}

.page-disclaimer .legal-hero__lede {
  margin: 16px 0 0;
  max-width: 62ch;
  font-size: 16px;
  line-height: 1.9;
  color: var(--txt);
}

.page-disclaimer .legal-hero__figure {
  margin: 0;
  align-self: start;
}

/* 条款目录 */
.page-disclaimer .legal-toc {
  margin-top: clamp(22px, 3.4vw, 34px);
  padding-top: 16px;
  border-top: 1px solid var(--line);
}

.page-disclaimer .legal-toc .toc-title {
  margin: 0 0 10px;
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0.16em;
  color: var(--txt-mute);
}

.page-disclaimer .legal-toc .toc-list {
  display: grid;
  gap: 4px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-disclaimer .legal-toc .toc-link {
  display: block;
  padding: 7px 12px;
  border-left: 2px solid transparent;
  font-size: 14px;
  font-weight: 500;
  line-height: 1.6;
  color: var(--txt-mute);
  text-decoration: none;
  transition: color var(--t-fast), border-color var(--t-fast), background var(--t-fast);
}

.page-disclaimer .legal-toc .toc-link:hover,
.page-disclaimer .legal-toc .toc-link:focus-visible {
  color: var(--c-soft);
  border-left-color: var(--c-cyan);
  background: rgba(0, 229, 255, 0.07);
}

.page-disclaimer .legal-toc .toc-link[aria-current="true"] {
  color: var(--c-gold);
  border-left-color: var(--c-gold);
  background: rgba(255, 183, 77, 0.08);
}

/* ---------- 条款区块 ---------- */
.page-disclaimer .clause-section {
  display: grid;
  grid-template-columns: 1fr;
  gap: 6px;
  padding: var(--d-pad) 0;
  border-bottom: 1px solid var(--line);
  scroll-margin-top: 112px;
}

.page-disclaimer .clause-rail {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 6px;
}

.page-disclaimer .clause-num {
  font-size: 13px;
  letter-spacing: 0.18em;
  color: var(--c-gold);
}

.page-disclaimer .clause-rail::after {
  content: "";
  flex: 1 1 auto;
  height: 1px;
  background: linear-gradient(to right, var(--line-gold), transparent);
}

.page-disclaimer .clause-title {
  margin: 0;
  font-size: clamp(21px, 3vw, 30px);
  line-height: 1.3;
  font-weight: 700;
  letter-spacing: -0.005em;
  color: var(--txt-strong);
}

.page-disclaimer .clause-lede {
  margin: 12px 0 0;
  max-width: 64ch;
  font-size: 15.5px;
  line-height: 1.9;
  color: var(--txt-mute);
}

/* 编号条款列表 */
.page-disclaimer .rule-list {
  counter-reset: rule;
  display: grid;
  gap: 14px;
  margin: 20px 0 0;
  padding: 0;
  list-style: none;
}

.page-disclaimer .rule-list > li {
  counter-increment: rule;
  position: relative;
  padding-left: 38px;
  font-size: 16px;
  line-height: 1.85;
  color: var(--txt);
}

.page-disclaimer .rule-list > li::before {
  content: counter(rule, decimal-leading-zero);
  position: absolute;
  left: 0;
  top: 5px;
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: 0.08em;
  color: var(--c-cyan);
}

.page-disclaimer .rule-list strong {
  font-weight: 600;
  color: var(--txt-strong);
}

/* 备案说明牌 */
.page-disclaimer .id-plate {
  margin: 22px 0 0;
  border-left: 3px solid var(--c-orange);
}

.page-disclaimer .id-plate .plate-title {
  margin: 8px 0 0;
  font-family: var(--font-mono);
  font-size: 16px;
  letter-spacing: 0.05em;
}

.page-disclaimer .id-plate .plate-text {
  margin: 6px 0 0;
}

/* 联系信息表 */
.page-disclaimer .brief-list {
  display: grid;
  gap: 0;
  margin: 20px 0 0;
  border-top: 1px solid var(--line);
}

.page-disclaimer .brief-row {
  display: grid;
  gap: 4px;
  padding: 12px 0;
  border-bottom: 1px solid var(--line);
}

.page-disclaimer .brief-row dt {
  font-size: 13px;
  font-weight: 500;
  letter-spacing: 0.1em;
  color: var(--c-cyan);
}

.page-disclaimer .brief-row dd {
  margin: 0;
  font-size: 15px;
  line-height: 1.75;
  color: var(--txt);
  overflow-wrap: anywhere;
}

/* ---------- 相关页面 ---------- */
.page-disclaimer .related-strip {
  display: grid;
  gap: 12px;
  margin-top: clamp(28px, 4vw, 48px);
  padding-top: 22px;
  border-top: 1px solid var(--line-2);
}

.page-disclaimer .related-title {
  margin: 0;
  font-size: 13px;
  letter-spacing: 0.14em;
  color: var(--txt-mute);
}

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

.page-disclaimer .related-link {
  display: inline-block;
  padding: 8px 16px;
  border: 1px solid var(--line-2);
  font-size: 14px;
  font-weight: 500;
  color: var(--txt);
  text-decoration: none;
  transition: color var(--t-fast), border-color var(--t-fast), background var(--t-fast);
}

.page-disclaimer .related-link:hover,
.page-disclaimer .related-link:focus-visible {
  color: var(--c-ink);
  background: var(--c-cyan);
  border-color: var(--c-cyan);
}

/* ---------- 响应式 ---------- */
@media (min-width: 620px) {
  .page-disclaimer .brief-row {
    grid-template-columns: 128px minmax(0, 1fr);
    align-items: baseline;
    gap: 18px;
  }

  .page-disclaimer .legal-toc .toc-list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 4px 16px;
  }
}

@media (min-width: 880px) {
  .page-disclaimer .clause-section {
    grid-template-columns: 116px minmax(0, 1fr);
    gap: 0 clamp(20px, 3vw, 40px);
  }

  .page-disclaimer .clause-rail {
    display: block;
    margin-bottom: 0;
    padding-top: 6px;
  }

  .page-disclaimer .clause-rail::after {
    display: block;
    width: 36px;
    height: 1px;
    margin-top: 14px;
  }

  .page-disclaimer .clause-num {
    font-size: 26px;
    letter-spacing: 0.06em;
  }

  .page-disclaimer .rule-list > li {
    padding-left: 46px;
  }
}

@media (min-width: 1000px) {
  .page-disclaimer .legal-hero {
    grid-template-columns: minmax(0, 1.06fr) minmax(0, 0.84fr);
    align-items: start;
  }

  .page-disclaimer .legal-toc .toc-list {
    grid-template-columns: 1fr;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-disclaimer .legal-toc .toc-link,
  .page-disclaimer .related-link {
    transition: none;
  }
}