.page-disclaimer {
  --legal-measure: 68ch;
  --clause-tint: rgba(53, 242, 206, 0.045);
  --grid-tint: rgba(28, 51, 88, 0.55);
  background: var(--ink);
}

/* ---------- 首屏 ---------- */

.page-disclaimer .legal-hero {
  position: relative;
  padding: clamp(28px, 5vw, 56px) 0 clamp(8px, 2vw, 16px);
  background:
    radial-gradient(760px 420px at 88% 0%, rgba(53, 242, 206, 0.07), transparent 68%),
    radial-gradient(560px 380px at 4% 30%, rgba(255, 61, 139, 0.05), transparent 70%);
}

.page-disclaimer .legal-hero h1 {
  font-family: var(--font-display);
  font-size: var(--fs-h1);
  font-weight: 200;
  line-height: 1.04;
  letter-spacing: -0.02em;
  color: var(--paper);
  margin: 18px 0 0;
  max-width: 18ch;
}

.page-disclaimer .legal-hero .lead {
  max-width: 62ch;
  margin: 22px 0 0;
  color: var(--mist);
  font-size: var(--fs-body);
  line-height: 1.72;
}

.page-disclaimer .hero-frame {
  position: relative;
  margin-top: clamp(28px, 4vw, 48px);
  border: 1px solid var(--line);
  border-radius: var(--r-l);
  overflow: hidden;
  background: var(--panel-deep);
}

.page-disclaimer .hero-frame::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(6, 12, 28, 0) 42%, rgba(6, 12, 28, 0.82) 100%);
  pointer-events: none;
}

.page-disclaimer .hero-frame img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  object-fit: cover;
}

/* ---------- 主体两栏 ---------- */

.page-disclaimer .legal-body {
  position: relative;
  background:
    radial-gradient(820px 420px at 100% 100%, rgba(53, 242, 206, 0.04), transparent 70%);
}

.page-disclaimer .legal-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(24px, 4vw, 40px);
  padding: clamp(40px, 6vw, 72px) 0 clamp(56px, 8vw, 100px);
}

.page-disclaimer .legal-main {
  min-width: 0;
  max-width: var(--legal-measure);
}

/* ---------- 锚点索引 ---------- */

.page-disclaimer .legal-index {
  min-width: 0;
  border-top: 1px solid var(--line);
  padding-top: 16px;
}

.page-disclaimer .index-head {
  margin: 0 0 12px;
  font-family: var(--font-mono);
  font-size: var(--fs-index);
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--mist);
}

.page-disclaimer .index-list {
  list-style: none;
  margin: 0;
  padding: 0 0 4px;
  display: flex;
  gap: 8px;
  overflow-x: auto;
  scrollbar-width: none;
}

.page-disclaimer .index-list::-webkit-scrollbar {
  display: none;
}

.page-disclaimer .index-list li {
  flex: 0 0 auto;
}

.page-disclaimer .index-link {
  display: block;
  padding: 6px 12px;
  border: 1px solid var(--line);
  border-radius: 999px;
  font-size: var(--fs-small);
  color: var(--mist);
  text-decoration: none;
  white-space: nowrap;
  transition: color 0.22s ease, border-color 0.22s ease, background-color 0.22s ease;
}

.page-disclaimer .index-link:hover,
.page-disclaimer .index-link:focus-visible {
  color: var(--cyan);
  border-color: var(--cyan);
  background: rgba(53, 242, 206, 0.06);
}

/* ---------- 条款分组 ---------- */

.page-disclaimer .clause {
  padding: clamp(30px, 4.5vw, 46px) 0;
  border-top: 1px solid var(--line);
  scroll-margin-top: calc(var(--header-bar) + 28px);
}

.page-disclaimer .clause:first-of-type {
  padding-top: 0;
  border-top: 0;
}

.page-disclaimer .clause-head {
  display: flex;
  align-items: baseline;
  gap: 14px;
  margin-bottom: clamp(16px, 2vw, 24px);
}

.page-disclaimer .clause-num {
  flex: 0 0 auto;
  font-size: var(--fs-index);
  letter-spacing: 0.16em;
  color: var(--cyan);
  padding: 3px 8px;
  border: 1px solid rgba(53, 242, 206, 0.35);
  border-radius: var(--r-s);
  line-height: 1.5;
}

.page-disclaimer .clause-title {
  margin: 0;
  font-family: var(--font-display);
  font-size: var(--fs-h3);
  font-weight: 300;
  letter-spacing: -0.01em;
  line-height: 1.15;
  color: var(--paper);
}

/* ---------- 条款条目 ---------- */

.page-disclaimer .clause-list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-disclaimer .clause-item {
  position: relative;
  display: grid;
  grid-template-columns: 44px minmax(0, 1fr);
  gap: 0 14px;
  padding: 15px 12px;
  margin-left: -12px;
  border-bottom: 1px solid var(--grid-tint);
  border-radius: var(--r-s);
  transition: background-color 0.22s ease;
}

.page-disclaimer .clause-list > .clause-item:last-child {
  border-bottom-color: transparent;
}

.page-disclaimer .clause-item::before {
  content: "";
  position: absolute;
  left: 0;
  top: 16px;
  bottom: 16px;
  width: 2px;
  border-radius: 2px;
  background: var(--cyan);
  opacity: 0;
  transition: opacity 0.22s ease;
}

.page-disclaimer .clause-item:hover {
  background: var(--clause-tint);
}

.page-disclaimer .clause-item:hover::before,
.page-disclaimer .clause-item:focus-within::before {
  opacity: 1;
}

.page-disclaimer .item-num {
  font-size: var(--fs-index);
  letter-spacing: 0.08em;
  color: var(--mist);
  padding-top: 3px;
  transition: color 0.22s ease;
}

.page-disclaimer .clause-item:hover .item-num,
.page-disclaimer .clause-item:focus-within .item-num {
  color: var(--cyan);
}

.page-disclaimer .clause-text {
  margin: 0;
  font-size: var(--fs-body);
  line-height: 1.72;
  color: var(--paper);
  opacity: 0.9;
}

.page-disclaimer .clause-text .num {
  color: var(--yellow);
  letter-spacing: 0.01em;
}

.page-disclaimer .inline-link {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(53, 242, 206, 0.4);
  padding-bottom: 1px;
  transition: border-color 0.2s ease, color 0.2s ease;
}

.page-disclaimer .inline-link:hover,
.page-disclaimer .inline-link:focus-visible {
  border-bottom-color: var(--cyan);
}

/* ---------- 折叠补充块 ---------- */

.page-disclaimer .clause-extra {
  margin-top: 22px;
  border: 1px solid var(--line);
  border-radius: var(--r-m);
  background: var(--panel);
  padding: 0 16px;
}

.page-disclaimer .extra-summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  padding: 16px 0;
  cursor: pointer;
  list-style: none;
  color: var(--paper);
  font-size: var(--fs-small);
}

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

.page-disclaimer .extra-summary:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 4px;
}

.page-disclaimer .extra-label {
  font-size: var(--fs-index);
  letter-spacing: 0.16em;
  color: var(--mist);
}

.page-disclaimer .extra-toggle {
  flex: 0 0 auto;
  width: 22px;
  height: 22px;
  border: 1px solid var(--line);
  border-radius: 50%;
  position: relative;
  transition: border-color 0.22s ease, background-color 0.22s ease;
}

.page-disclaimer .extra-toggle::before,
.page-disclaimer .extra-toggle::after {
  content: "";
  position: absolute;
  left: 50%;
  top: 50%;
  background: var(--cyan);
  transform: translate(-50%, -50%);
  transition: opacity 0.22s ease;
}

.page-disclaimer .extra-toggle::before {
  width: 9px;
  height: 1px;
}

.page-disclaimer .extra-toggle::after {
  width: 1px;
  height: 9px;
}

.page-disclaimer .clause-extra[open] .extra-toggle::after {
  opacity: 0;
}

.page-disclaimer .clause-extra[open] .extra-toggle {
  border-color: var(--cyan);
  background: rgba(53, 242, 206, 0.08);
}

.page-disclaimer .extra-body {
  padding: 0 0 20px;
  border-top: 1px solid var(--line);
  padding-top: 16px;
}

.page-disclaimer .extra-body p {
  margin: 0 0 12px;
  font-size: var(--fs-small);
  line-height: 1.72;
  color: var(--mist);
}

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

/* ---------- 窄屏 ---------- */

@media (max-width: 480px) {
  .page-disclaimer .clause-item {
    grid-template-columns: minmax(0, 1fr);
    gap: 6px;
    padding: 14px 10px;
    margin-left: -10px;
  }

  .page-disclaimer .item-num {
    padding-top: 0;
  }

  .page-disclaimer .clause-item::before {
    top: 12px;
    bottom: 12px;
  }
}

/* ---------- 桌面：窄栏 + 右侧粘性索引 ---------- */

@media (min-width: 960px) {
  .page-disclaimer .legal-layout {
    grid-template-columns: minmax(0, 1fr) 208px;
    gap: clamp(48px, 5vw, 88px);
    align-items: start;
  }

  .page-disclaimer .legal-main {
    order: 1;
    justify-self: start;
    width: 100%;
  }

  .page-disclaimer .legal-index {
    order: 2;
    position: sticky;
    top: calc(var(--header-bar) + 28px);
    border-top: 0;
    border-left: 1px solid var(--line);
    padding-top: 0;
    padding-left: 20px;
  }

  .page-disclaimer .index-list {
    flex-direction: column;
    gap: 2px;
    overflow: visible;
    padding-bottom: 0;
  }

  .page-disclaimer .index-link {
    border: 0;
    border-left: 1px solid transparent;
    border-radius: 0;
    padding: 6px 0 6px 10px;
    margin-left: -11px;
    white-space: normal;
  }

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

@media (min-width: 1280px) {
  .page-disclaimer .legal-layout {
    grid-template-columns: minmax(0, 1fr) 232px;
  }
}

/* ---------- 减弱动效 ---------- */

@media (prefers-reduced-motion: reduce) {
  .page-disclaimer .index-link,
  .page-disclaimer .clause-item,
  .page-disclaimer .item-num,
  .page-disclaimer .inline-link,
  .page-disclaimer .extra-toggle,
  .page-disclaimer .extra-toggle::before,
  .page-disclaimer .extra-toggle::after {
    transition: none;
  }
}