/* 依赖 site.css 提供的设计变量与背景 */

.legal-back{
  position: sticky;
  top: 22px;
  z-index: 10;
  grid-column: 1;
  align-self: start;
  justify-self: end;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 9px;
  min-height: 46px;
  padding: 10px 18px;
  border: 1px solid rgba(255,255,255,.9);
  border-radius: 999px;
  background: linear-gradient(180deg, rgba(255,255,255,.85), rgba(255,255,255,.62));
  color: var(--accent-strong);
  box-shadow: inset 0 1px 0 #fff, var(--shadow-md);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  font: 700 14px/1 var(--font);
  cursor: pointer;
  transition: color .22s, background .22s, border-color .22s, transform .18s var(--ease-out);
}

.legal-back svg{
  width: 16px;
  height: 16px;
  transition: transform .22s var(--ease-out);
}

.legal-back:hover{
  color: var(--on-accent);
  border-color: transparent;
  background: var(--accent-grad);
  transform: translateY(-1px);
}

.legal-back:hover svg{
  transform: translateX(-2px);
}

.legal-back:focus-visible{
  outline: 2px solid var(--accent);
  outline-offset: 4px;
}

.legal-page{
  width: min(1360px, calc(100% - 40px));
  margin: 0 auto;
  padding: 48px 0 84px;
  display: grid;
  grid-template-columns: 120px minmax(0, 1fr) 120px;
  column-gap: 20px;
  align-items: start;
  justify-content: center;
}

.legal-document{
  grid-column: 2;
  min-width: 0;
  padding: clamp(32px, 5vw, 60px);
  border: 1px solid rgba(255,255,255,.9);
  border-radius: 32px;
  background: linear-gradient(180deg, rgba(255,255,255,.9), rgba(255,255,255,.76));
  box-shadow: inset 0 1px 0 #fff, var(--shadow-lg);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  animation: legal-in .8s var(--ease-out) both;
}

.legal-document,
.legal-document *{
  -webkit-user-select: none;
  user-select: none;
  cursor: default;
}

.legal-document h1{
  margin: 0 0 17px;
  color: var(--text);
  font-size: clamp(31px, 5vw, 46px);
  font-family: var(--font-title);
  font-weight: 700;
  line-height: 1.2;
  letter-spacing: .03em;
}

.legal-meta{
  margin: 0 0 28px;
  padding: 15px 18px;
  border-left: 3px solid var(--accent);
  border-radius: 0 14px 14px 0;
  background: var(--accent-tint);
  color: var(--text-2);
  font-size: 13.5px;
  line-height: 1.65;
}

.legal-document h2{
  display: flex; align-items: center; gap: 10px;
  margin: 32px 0 10px;
  color: var(--text);
  font-size: 18px;
  line-height: 1.45;
  letter-spacing: 0;
}

.legal-document h3{
  margin: 22px 0 8px;
  color: var(--text);
  font-size: 16.5px;
  line-height: 1.45;
}

.legal-document p,
.legal-document li{
  color: var(--text);
  font-size: 15.5px;
  line-height: 1.85;
}

.legal-document p{
  margin: 0 0 10px;
}

.legal-document strong{
  color: var(--text);
  font-weight: 700;
}

.legal-document ol,
.legal-document ul{
  margin: 8px 0 14px;
  padding-left: 1.7em;
}

.legal-document li{
  margin: 4px 0;
  padding-left: .28em;
}

.legal-important{
  margin: 26px 0 30px !important;
  padding: 18px 20px;
  border: 1px solid rgba(240,120,42,.22);
  border-radius: 16px;
  background: var(--accent-tint);
  color: var(--text) !important;
}

.legal-final-note{
  margin-top: 26px !important;
  padding-top: 18px;
  border-top: 1px solid var(--line-strong);
  color: var(--text) !important;
  font-weight: 600;
}

.legal-document h2::before{
  content: ""; width: 4px; height: 1em; border-radius: 4px; background: var(--accent-grad);
}

@keyframes legal-in{
  from{ opacity: 0; transform: translateY(24px); }
  to{ opacity: 1; transform: none; }
}

@media (max-width: 1320px) and (min-width: 1121px){
  .legal-page{
    width: min(1180px, calc(100% - 40px));
    grid-template-columns: 120px minmax(0, 1fr);
  }

  .legal-document{
    grid-column: 2;
  }
}

@media (max-width: 1120px){
  .legal-page{
    width: min(1040px, calc(100% - 40px));
    padding-top: 22px;
    grid-template-columns: minmax(0, 1fr);
    row-gap: 14px;
  }

  .legal-back{
    grid-column: 1;
    justify-self: start;
  }

  .legal-document{
    grid-column: 1;
  }
}

@media (max-width: 700px){
  .legal-back{
    top: max(12px, env(safe-area-inset-top));
  }

  .legal-page{
    width: calc(100% - 24px);
    padding: 14px 0 42px;
    row-gap: 12px;
  }

  .legal-document{
    padding: 28px 20px 36px;
    border-radius: 20px;
  }

  .legal-document p,
  .legal-document li{
    font-size: 14.5px;
    line-height: 1.68;
  }
}

@media (prefers-reduced-motion: reduce){
  *, *::before, *::after{
    animation-duration: .01ms !important;
    transition-duration: .01ms !important;
  }
}

@media print{
  .legal-page,
  .legal-back{
    display: none !important;
  }

  body::after{
    content: "协议内容仅供网页查看";
    display: block;
    padding: 40px;
    color: #111;
    font: 16px/1.6 sans-serif;
  }
}