.page-disclaimer {
  --rule-gap: clamp(14px, 2.2vw, 26px);
  --clay-soft: #C97A52;
  position: relative;
}

/* ---------- Hero ---------- */
.page-disclaimer .rule-hero {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  padding: clamp(30px, 5vw, 72px) 0 clamp(40px, 6vw, 76px);
  border-bottom: 1px solid var(--line);
  background: radial-gradient(120% 90% at 88% 0%, rgba(53, 240, 208, 0.09), transparent 62%);
}

.page-disclaimer .rule-hero__bg {
  position: absolute;
  inset: 0;
  z-index: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.16;
  filter: saturate(0.55) contrast(1.05);
  pointer-events: none;
}

.page-disclaimer .rule-hero > .shell {
  position: relative;
  z-index: 1;
}

.page-disclaimer .rule-hero .breadcrumb {
  margin-bottom: clamp(22px, 3.4vw, 40px);
}

.page-disclaimer .rule-hero__eyebrow {
  margin: 0 0 14px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--cyan);
}

.page-disclaimer .rule-hero__title {
  margin: 0 0 20px;
  max-width: 16em;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(32px, 5.4vw, 68px);
  line-height: 1.06;
  letter-spacing: -0.02em;
  color: var(--mist);
}

.page-disclaimer .rule-hero__lede {
  max-width: 60ch;
  color: var(--mist);
  opacity: 0.85;
  font-size: clamp(15px, 1.25vw, 17px);
  line-height: 1.78;
}

/* ---------- 规则正文 ---------- */
.page-disclaimer .rule-body {
  padding: clamp(46px, 7vw, 96px) 0 clamp(34px, 5vw, 66px);
}

.page-disclaimer .rule-body__head {
  display: grid;
  gap: 12px;
  margin-bottom: clamp(28px, 4vw, 50px);
  padding-bottom: clamp(18px, 2.4vw, 26px);
  border-bottom: 1px solid var(--line);
}

.page-disclaimer .rule-body__head h2 {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(24px, 3vw, 40px);
  line-height: 1.15;
  letter-spacing: -0.02em;
  color: var(--mist);
}

.page-disclaimer .rule-body__head p {
  margin: 0;
  max-width: 62ch;
  color: var(--stone);
  font-size: 16px;
  line-height: 1.75;
}

.page-disclaimer .rule-list {
  display: flex;
  flex-direction: column;
  gap: var(--rule-gap);
}

.page-disclaimer .rule-card {
  display: grid;
  grid-template-columns: 76px minmax(0, 1fr);
  gap: clamp(14px, 2.4vw, 32px);
  align-items: start;
  width: calc(100% - var(--shrink, 0%));
  padding: clamp(18px, 2.6vw, 30px) clamp(16px, 2.6vw, 30px);
  border: 1px solid var(--line);
  background: linear-gradient(180deg, var(--ink-700), var(--ink-900) 150%);
  transition: border-color 260ms var(--ease);
}

.page-disclaimer .rule-card:nth-child(1) { --shrink: 0%; }
.page-disclaimer .rule-card:nth-child(2) { --shrink: 4%; }
.page-disclaimer .rule-card:nth-child(3) { --shrink: 8%; }
.page-disclaimer .rule-card:nth-child(4) { --shrink: 12%; }
.page-disclaimer .rule-card:nth-child(5) { --shrink: 16%; }
.page-disclaimer .rule-card:nth-child(6) { --shrink: 20%; }

.page-disclaimer .rule-card:hover,
.page-disclaimer .rule-card:focus-within {
  border-color: var(--cyan);
}

.page-disclaimer .rule-card__no {
  padding-top: 3px;
  font-family: var(--font-mono);
  font-size: clamp(20px, 2.4vw, 30px);
  line-height: 1;
  letter-spacing: 0.04em;
  color: var(--cyan);
}

.page-disclaimer .rule-card__title {
  margin: 0 0 10px;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(18px, 1.7vw, 22px);
  line-height: 1.3;
  letter-spacing: -0.01em;
  color: var(--mist);
}

.page-disclaimer .rule-card__text {
  margin: 0;
  max-width: 66ch;
  color: var(--stone);
  font-size: 16px;
  line-height: 1.78;
}

.page-disclaimer .rule-card__more {
  margin-top: 14px;
  padding-top: 12px;
  border-top: 1px dashed var(--line);
}

.page-disclaimer .rule-card__more > summary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  cursor: pointer;
  list-style: none;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--cyan);
}

.page-disclaimer .rule-card__more > summary::-webkit-details-marker {
  display: none;
}

.page-disclaimer .rule-card__more > summary::after {
  content: "+";
  font-size: 14px;
  line-height: 1;
}

.page-disclaimer .rule-card__more[open] > summary::after {
  content: "–";
}

.page-disclaimer .rule-card__more p {
  margin: 12px 0 0;
  max-width: 64ch;
  color: var(--mist);
  opacity: 0.78;
  font-size: 15px;
  line-height: 1.78;
}

.page-disclaimer .text-link {
  text-decoration: underline;
  text-underline-offset: 3px;
}

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

/* ---------- 允许 / 授权 ---------- */
.page-disclaimer .permit-band {
  padding: clamp(40px, 6vw, 80px) 0;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  background: var(--ink-700);
}

.page-disclaimer .permit-band h2 {
  margin: 0 0 clamp(20px, 3vw, 34px);
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(22px, 2.6vw, 34px);
  line-height: 1.2;
  letter-spacing: -0.02em;
  color: var(--mist);
}

.page-disclaimer .permit-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: clamp(16px, 2.4vw, 28px);
}

.page-disclaimer .permit-card {
  padding: clamp(18px, 2.4vw, 28px);
  border: 1px solid var(--line);
  background: var(--ink-900);
}

.page-disclaimer .permit-card--ok {
  border-left: 2px solid var(--cyan);
}

.page-disclaimer .permit-card--no {
  border-left: 2px solid var(--clay);
}

.page-disclaimer .permit-card__label {
  margin: 0 0 10px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.page-disclaimer .permit-card--ok .permit-card__label {
  color: var(--cyan);
}

.page-disclaimer .permit-card--no .permit-card__label {
  color: var(--clay-soft);
}

.page-disclaimer .permit-card__subtitle {
  margin: 0 0 16px;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 19px;
  line-height: 1.3;
  color: var(--mist);
}

.page-disclaimer .permit-list {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 11px;
}

.page-disclaimer .permit-list li {
  position: relative;
  padding-left: 22px;
  color: var(--mist);
  opacity: 0.86;
  font-size: 15px;
  line-height: 1.72;
}

.page-disclaimer .permit-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.62em;
  width: 9px;
  height: 9px;
  border: 1px solid currentColor;
}

.page-disclaimer .permit-card--ok .permit-list li::before {
  color: var(--cyan);
}

.page-disclaimer .permit-card--no .permit-list li::before {
  color: var(--clay-soft);
}

/* ---------- 收尾 ---------- */
.page-disclaimer .rule-tail {
  padding: clamp(36px, 5vw, 64px) 0 clamp(72px, 8vw, 104px);
}

.page-disclaimer .rule-tail__bar {
  height: 2px;
  width: 100%;
  margin-bottom: clamp(18px, 2.4vw, 26px);
  background: linear-gradient(90deg, var(--amber), rgba(255, 122, 47, 0) 78%);
}

.page-disclaimer .rule-tail__note {
  margin: 0 0 clamp(22px, 3vw, 32px);
  max-width: 66ch;
  color: var(--stone);
  font-size: 15px;
  line-height: 1.78;
}

.page-disclaimer .rule-tail__meta {
  display: flex;
  flex-wrap: wrap;
  gap: 10px clamp(18px, 3vw, 40px);
  padding-top: 16px;
  border-top: 1px solid var(--line);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--stone);
}

/* ---------- 返回顶部 ---------- */
.page-disclaimer .to-top {
  position: fixed;
  right: clamp(14px, 2.4vw, 28px);
  bottom: clamp(14px, 2.4vw, 28px);
  z-index: 20;
  display: inline-flex;
  align-items: center;
  padding: 9px 14px;
  border: 1px solid var(--line);
  background: var(--ink-700);
  color: var(--cyan);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  text-decoration: none;
  transition: border-color 220ms var(--ease);
}

.page-disclaimer .to-top:hover {
  border-color: var(--cyan);
}

/* ---------- 响应式 ---------- */
@media (max-width: 900px) {
  .page-disclaimer .rule-card,
  .page-disclaimer .rule-card:nth-child(n) {
    --shrink: 0%;
  }

  .page-disclaimer .rule-card {
    grid-template-columns: 56px minmax(0, 1fr);
  }

  .page-disclaimer .rule-card__no {
    font-size: 20px;
  }

  .page-disclaimer .permit-grid {
    grid-template-columns: minmax(0, 1fr);
  }
}

@media (max-width: 560px) {
  .page-disclaimer .rule-card {
    grid-template-columns: minmax(0, 1fr);
    gap: 10px;
  }

  .page-disclaimer .rule-card__no {
    padding-top: 0;
    font-size: 16px;
    letter-spacing: 0.12em;
  }

  .page-disclaimer .rule-hero__title {
    max-width: none;
  }

  .page-disclaimer .rule-tail__meta {
    flex-direction: column;
    gap: 8px;
  }
}

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