.page-disclaimer {
  --legal-gap: clamp(2.5rem, 6vw, 5rem);
  background: var(--carbon);
  color: var(--ink);
}

/* ---------- 首屏：抽象纹理背景 + 斜切光影 ---------- */
.page-disclaimer .legal-hero {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  padding: calc(var(--header-h) + clamp(2.25rem, 5vw, 4rem)) 0 clamp(2.75rem, 6vw, 5rem);
  border-bottom: 1px solid var(--line);
}

.page-disclaimer .legal-hero__bg {
  position: absolute;
  inset: 0;
  z-index: -1;
}

.page-disclaimer .legal-hero__bg img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.3;
  filter: saturate(0.65) contrast(1.05);
}

.page-disclaimer .legal-hero__bg::after {
  content: "";
  position: absolute;
  inset: 0;
  background:
    linear-gradient(118deg, var(--carbon) 14%, rgba(11, 15, 13, 0.86) 48%, rgba(15, 42, 34, 0.78) 100%),
    radial-gradient(60% 80% at 88% 12%, rgba(53, 240, 208, 0.12), transparent 70%);
}

.page-disclaimer .legal-hero::after {
  content: "";
  position: absolute;
  top: 0;
  right: -8%;
  width: 36%;
  height: 100%;
  background: linear-gradient(180deg, rgba(255, 107, 44, 0.18), rgba(180, 85, 47, 0.05));
  clip-path: polygon(42% 0, 100% 0, 100% 100%, 0 100%);
  pointer-events: none;
}

.page-disclaimer .legal-hero__inner {
  position: relative;
  z-index: 1;
}

.page-disclaimer .legal-hero__title {
  font-family: var(--font-display);
  font-size: clamp(2.05rem, 6.2vw, 4.1rem);
  line-height: 1.04;
  letter-spacing: -0.012em;
  margin: 1.1rem 0 0;
  max-width: 24ch;
}

.page-disclaimer .legal-hero__lead {
  max-width: 62ch;
  margin: 1.35rem 0 0;
  color: var(--ink);
  font-size: clamp(1rem, 1.6vw, 1.1rem);
  line-height: 1.9;
}

.page-disclaimer .legal-hero__rule {
  display: block;
  width: 88px;
  height: 2px;
  margin-top: 2rem;
  background: linear-gradient(90deg, var(--gold), var(--signal));
}

.page-disclaimer .legal-hero__meta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-top: 1.5rem;
}

/* ---------- 主体：索引 + 编号条款 ---------- */
.page-disclaimer .legal-body {
  padding: var(--legal-gap) 0 calc(var(--legal-gap) * 1.3);
}

.page-disclaimer .legal-body__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(2rem, 5vw, 3.75rem);
}

.page-disclaimer .legal-index {
  align-self: start;
  padding: 1.25rem 1.25rem 1.5rem;
  background: var(--glass);
  border: 1px solid var(--line-soft);
  border-left: 2px solid var(--signal);
  border-radius: var(--radius);
  backdrop-filter: blur(10px);
}

.page-disclaimer .legal-index__title {
  margin: 0;
  font-size: 0.75rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--ink-2);
}

.page-disclaimer .legal-index__list {
  list-style: none;
  margin: 1rem 0 0;
  padding: 0;
  display: grid;
  gap: 0.15rem;
}

.page-disclaimer .legal-index__link {
  display: flex;
  align-items: baseline;
  gap: 0.65rem;
  padding: 0.55rem 0.35rem;
  color: var(--ink-2);
  font-size: 0.95rem;
  text-decoration: none;
  border-bottom: 1px solid var(--line-soft);
  transition: color 0.2s ease, background-color 0.2s ease;
}

.page-disclaimer .legal-index__link:hover {
  color: var(--ink);
  background: rgba(53, 240, 208, 0.08);
}

.page-disclaimer .legal-index__link:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 2px;
  color: var(--ink);
}

.page-disclaimer .legal-index__num {
  color: var(--gold);
  font-size: 0.78rem;
  letter-spacing: 0.1em;
}

.page-disclaimer .legal-index__note {
  margin: 1.25rem 0 0;
  font-size: 0.85rem;
  line-height: 1.7;
}

.page-disclaimer .to-top {
  margin-top: 1.25rem;
  width: 100%;
  padding: 0.6rem 0.75rem;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--ink);
  background: transparent;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  cursor: pointer;
  transition: border-color 0.2s ease, color 0.2s ease, background-color 0.2s ease;
}

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

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

/* ---------- 条款段落 ---------- */
.page-disclaimer .legal-clauses {
  display: block;
  min-width: 0;
}

.page-disclaimer .legal-clause {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0.4rem;
  padding: clamp(1.9rem, 4vw, 3rem) 0;
  border-top: 1px solid var(--line);
  scroll-margin-top: calc(var(--header-h) + 1.5rem);
}

.page-disclaimer .legal-clause:first-of-type {
  border-top: 2px solid var(--gold);
  padding-top: clamp(1.5rem, 3vw, 2.25rem);
}

.page-disclaimer .legal-clause__num {
  font-size: 0.86rem;
  letter-spacing: 0.16em;
  color: var(--gold);
  margin: 0;
}

.page-disclaimer .legal-clause__body {
  min-width: 0;
}

.page-disclaimer .legal-clause__title {
  font-family: var(--font-display);
  font-size: clamp(1.5rem, 3.6vw, 2.15rem);
  line-height: 1.16;
  letter-spacing: -0.005em;
  margin: 0 0 1rem;
}

.page-disclaimer .legal-clause__body > p {
  margin: 0 0 1rem;
  max-width: 68ch;
  line-height: 1.9;
  color: var(--ink);
}

.page-disclaimer .legal-list {
  list-style: none;
  margin: 1.25rem 0 0;
  padding: 0;
  display: grid;
  gap: 0.75rem;
  max-width: 70ch;
}

.page-disclaimer .legal-list li {
  position: relative;
  padding-left: 1.5rem;
  line-height: 1.85;
  color: var(--ink-2);
}

.page-disclaimer .legal-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.78em;
  width: 11px;
  height: 2px;
  background: var(--cyan);
}

.page-disclaimer .legal-list li strong {
  color: var(--ink);
}

.page-disclaimer .legal-link {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(53, 240, 208, 0.4);
  padding-bottom: 1px;
}

.page-disclaimer .legal-link:hover {
  color: var(--ink);
  border-bottom-color: var(--signal);
}

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

/* ---------- 折叠块 ---------- */
.page-disclaimer .legal-details {
  margin-top: 1.75rem;
  max-width: 70ch;
  background: var(--green-900);
  border: 1px solid var(--line-soft);
  border-left: 2px solid var(--signal);
  border-radius: var(--radius);
}

.page-disclaimer .legal-details summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 1rem 1.25rem;
  cursor: pointer;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.05rem;
  list-style: none;
  color: var(--ink);
}

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

.page-disclaimer .legal-details summary::after {
  content: "+";
  font-family: var(--font-mono);
  font-size: 1rem;
  color: var(--signal);
}

.page-disclaimer .legal-details[open] summary::after {
  content: "–";
}

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

.page-disclaimer .legal-details__body {
  padding: 0 1.25rem 1.25rem;
}

.page-disclaimer .legal-details__body p {
  margin: 0 0 0.85rem;
  line-height: 1.85;
  color: var(--ink-2);
}

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

/* ---------- 联系方式 ---------- */
.page-disclaimer .contact-list {
  list-style: none;
  margin: 1.5rem 0 0;
  padding: 0;
  display: grid;
  gap: 1.25rem;
  max-width: 70ch;
}

.page-disclaimer .contact-item {
  display: grid;
  gap: 0.3rem;
  padding: 1rem 0 1rem 1.15rem;
  border-left: 2px solid var(--gold);
  background: linear-gradient(90deg, rgba(217, 164, 65, 0.07), transparent 70%);
}

.page-disclaimer .contact-item__label {
  font-size: 0.75rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--ink-2);
}

.page-disclaimer .contact-item__value {
  font-size: 1.02rem;
  color: var(--ink);
  line-height: 1.6;
}

.page-disclaimer .contact-item__note {
  font-size: 0.88rem;
  line-height: 1.75;
  color: var(--ink-2);
}

.page-disclaimer .btn-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-top: 2rem;
}

/* ---------- 响应式 ---------- */
@media (min-width: 720px) {
  .page-disclaimer .legal-clause {
    grid-template-columns: 64px minmax(0, 1fr);
    gap: 0 1.75rem;
  }

  .page-disclaimer .legal-clause__num {
    padding-top: 0.55rem;
  }
}

@media (min-width: 960px) {
  .page-disclaimer .legal-body__grid {
    grid-template-columns: minmax(210px, 262px) minmax(0, 1fr);
    align-items: start;
  }

  .page-disclaimer .legal-index {
    position: sticky;
    top: calc(var(--header-h) + 1.75rem);
  }

  .page-disclaimer .legal-index__note {
    font-size: 0.82rem;
  }
}

@media (max-width: 520px) {
  .page-disclaimer .legal-hero::after {
    width: 46%;
    right: -14%;
    opacity: 0.75;
  }

  .page-disclaimer .legal-hero__title {
    max-width: 18ch;
  }
}

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