.page-disclaimer {
  --disc-index-w: 208px;
  padding-bottom: clamp(48px, 8vw, 120px);
}

/* ---------- 面包屑 ---------- */
.page-disclaimer .breadcrumb {
  margin: clamp(22px, 3.6vw, 48px) 0 clamp(20px, 3vw, 38px);
  font-size: var(--fs-xs);
  letter-spacing: 0.08em;
  color: var(--mist);
}

/* ---------- 首屏 ---------- */
.page-disclaimer .hero {
  padding-bottom: clamp(32px, 5vw, 64px);
}

.page-disclaimer .hero__inner {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(28px, 4vw, 56px);
  align-items: center;
}

.page-disclaimer .hero__text {
  display: flex;
  flex-direction: column;
  gap: clamp(14px, 1.8vw, 22px);
}

.page-disclaimer .hero__title {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(2.1rem, 7.4vw, 5.25rem);
  font-weight: 900;
  line-height: 1.02;
  letter-spacing: -0.022em;
  color: var(--paper);
  text-shadow: 0 0 36px rgba(51, 225, 225, 0.14);
}

.page-disclaimer .hero__lede {
  margin: 0;
  max-width: 36em;
  font-size: var(--fs-body);
  line-height: 1.85;
  color: var(--mist);
}

.page-disclaimer .hero__figure {
  margin: 0;
  border: 1px solid var(--line);
  background: var(--panel);
  overflow: hidden;
}

.page-disclaimer .hero__figure img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  aspect-ratio: 3 / 2;
  object-fit: cover;
  filter: saturate(0.85) brightness(0.86) hue-rotate(-8deg);
}

.page-disclaimer .hero__figure figcaption {
  padding: 10px 14px;
  border-top: 1px solid var(--line);
  font-family: var(--font-mono);
  font-size: var(--fs-xs);
  letter-spacing: 0.08em;
  color: var(--mist);
}

@media (min-width: 980px) {
  .page-disclaimer .hero__inner {
    grid-template-columns: minmax(0, 1.1fr) minmax(0, 0.9fr);
  }
}

/* ---------- 规则主体 ---------- */
.page-disclaimer .rules {
  margin-top: clamp(40px, 6vw, 88px);
}

.page-disclaimer .rules__layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(24px, 3.4vw, 48px);
}

/* 索引 */
.page-disclaimer .rules__index {
  padding-top: 14px;
  border-top: 1px solid var(--line);
}

.page-disclaimer .rules__index-title {
  margin: 0;
  color: var(--mist);
}

.page-disclaimer .rules__index-list {
  margin: 16px 0 0;
  padding: 0;
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.page-disclaimer .rules__index-link {
  display: flex;
  align-items: baseline;
  gap: 8px;
  padding: 8px 11px;
  border: 1px solid var(--line);
  color: var(--mist);
  font-size: var(--fs-sm);
  text-decoration: none;
  transition: color 0.16s var(--ease), border-color 0.16s var(--ease), background-color 0.16s var(--ease);
}

.page-disclaimer .rules__index-link:hover,
.page-disclaimer .rules__index-link:focus-visible {
  color: var(--paper);
  border-color: var(--cyan);
  background: var(--panel);
}

.page-disclaimer .rules__index-code {
  flex: none;
  font-family: var(--font-mono);
  font-size: var(--fs-xs);
  letter-spacing: 0.1em;
  color: var(--amber);
}

@media (min-width: 900px) {
  .page-disclaimer .rules__layout {
    grid-template-columns: var(--disc-index-w) minmax(0, 1fr);
    gap: clamp(32px, 5vw, 84px);
  }

  .page-disclaimer .rules__index {
    position: sticky;
    top: calc(var(--topbar-h) + 28px);
    align-self: start;
  }

  .page-disclaimer .rules__index-list {
    flex-direction: column;
    flex-wrap: nowrap;
    gap: 0;
  }

  .page-disclaimer .rules__index-link {
    padding: 11px 12px;
    border: 0;
    border-left: 2px solid transparent;
    border-bottom: 1px solid var(--line);
  }

  .page-disclaimer .rules__index-link:hover,
  .page-disclaimer .rules__index-link:focus-visible {
    border-left-color: var(--cyan);
    background: var(--panel);
  }
}

/* 单条规则 */
.page-disclaimer .rule {
  padding: clamp(30px, 4.4vw, 52px) 0;
  scroll-margin-top: calc(var(--topbar-h) + 24px);
}

.page-disclaimer .rule:first-child {
  padding-top: 0;
}

.page-disclaimer .rule + .rule {
  border-top: 1px solid var(--line);
}

.page-disclaimer .rule__head {
  display: flex;
  align-items: baseline;
  gap: clamp(12px, 2vw, 26px);
  margin-bottom: clamp(16px, 2vw, 26px);
}

.page-disclaimer .rule__code {
  flex: none;
  font-family: var(--font-mono);
  font-size: clamp(1.05rem, 2vw, 1.5rem);
  font-weight: 700;
  letter-spacing: 0.1em;
  line-height: 1;
  color: var(--magenta);
}

.page-disclaimer .rule__title {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(1.3rem, 2.6vw, 2.125rem);
  font-weight: 800;
  line-height: 1.28;
  color: var(--paper);
}

.page-disclaimer .rule__body {
  max-width: var(--measure);
  font-size: var(--fs-body);
  line-height: 1.85;
  color: var(--mist);
}

.page-disclaimer .rule__body p {
  margin: 0 0 1em;
}

.page-disclaimer .rule__body p:last-child {
  margin-bottom: 0;
}

.page-disclaimer .rule__body a.link-fill {
  color: var(--cyan);
}

.page-disclaimer .rule__list {
  margin: 0.6em 0 1.2em;
  padding: 0;
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.page-disclaimer .rule__list li {
  position: relative;
  padding-left: 22px;
}

.page-disclaimer .rule__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.68em;
  width: 8px;
  height: 8px;
  background: var(--magenta);
  transform: rotate(45deg);
}

.page-disclaimer .key {
  color: var(--paper);
  font-weight: 600;
  background: linear-gradient(transparent 62%, rgba(51, 225, 225, 0.22) 62%);
  padding: 0 1px;
}

/* 琥珀提示条 */
.page-disclaimer .callout {
  margin: 1.5em 0 0;
  padding: 14px 18px;
  border-left: 2px solid var(--amber);
  background: linear-gradient(90deg, rgba(255, 194, 75, 0.09), rgba(255, 194, 75, 0) 74%);
  color: var(--paper);
  font-size: var(--fs-sm);
  line-height: 1.8;
}

.page-disclaimer .callout__label {
  display: block;
  margin-bottom: 5px;
  font-family: var(--font-mono);
  font-size: var(--fs-xs);
  letter-spacing: 0.12em;
  color: var(--amber);
}

/* 勘误示例折叠 */
.page-disclaimer .example {
  margin: 1.5em 0 0;
  border: 1px solid var(--line);
  background: var(--panel);
}

.page-disclaimer .example summary {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 12px 16px;
  cursor: pointer;
  list-style: none;
  font-family: var(--font-mono);
  font-size: var(--fs-sm);
  letter-spacing: 0.04em;
  color: var(--cyan);
}

.page-disclaimer .example summary::-webkit-details-marker {
  display: none;
}

.page-disclaimer .example summary::before {
  content: "+";
  flex: none;
  font-size: 1.05em;
  line-height: 1;
  color: var(--amber);
}

.page-disclaimer .example[open] summary::before {
  content: "−";
}

.page-disclaimer .example summary:hover {
  color: var(--paper);
}

.page-disclaimer .example__body {
  padding: 6px 16px 18px;
  border-top: 1px solid var(--line);
  font-size: var(--fs-sm);
  line-height: 1.8;
  color: var(--mist);
}

.page-disclaimer .example__row {
  display: flex;
  gap: 12px;
  padding: 8px 0;
  border-bottom: 1px dashed rgba(30, 44, 70, 0.9);
}

.page-disclaimer .example__row:last-child {
  border-bottom: 0;
}

.page-disclaimer .example__k {
  flex: none;
  width: 4.2em;
  padding-top: 2px;
  font-family: var(--font-mono);
  font-size: var(--fs-xs);
  letter-spacing: 0.1em;
  color: var(--amber);
}

/* 底部坐标装饰带 */
.page-disclaimer .end-band {
  position: relative;
  margin-top: clamp(44px, 6.5vw, 92px);
  height: 8px;
  background: var(--grad-pixel);
  opacity: 0.55;
}

.page-disclaimer .end-band::after {
  content: "";
  position: absolute;
  inset: 0;
  background: repeating-linear-gradient(
    90deg,
    rgba(7, 11, 20, 0) 0 6px,
    rgba(7, 11, 20, 0.72) 6px 8px
  );
}

@media (prefers-reduced-motion: reduce) {
  .page-disclaimer .rules__index-link,
  .page-disclaimer .example summary::before {
    transition: none;
  }
}