/* ==========================================================================
   用户协议页 - 独立原创样式
   布局：左侧目录锚点 sticky + 右侧条款正文卷轴
   ========================================================================== */

.legal-layout {
  display: grid;
  grid-template-columns: 260px 1fr;
  gap: 56px;
  align-items: start;
  margin-top: 20px;
}

/* ---------- 左侧目录 ---------- */
.legal-toc {
  position: sticky;
  top: 100px;
  background: #fff;
  border-radius: var(--r-lg);
  border: 1px solid var(--line);
  box-shadow: var(--shadow-sm);
  padding: 28px 24px;
}

.toc-label {
  font-size: 11.5px;
  letter-spacing: 3px;
  color: var(--purple-deep);
  text-transform: uppercase;
  font-family: var(--font-en);
  margin-bottom: 18px;
  padding-bottom: 14px;
  border-bottom: 1px dashed var(--line);
}

.legal-toc ul {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.legal-toc a {
  display: block;
  font-size: 13.8px;
  color: var(--body);
  padding: 9px 14px;
  border-radius: var(--r-sm);
  transition: all 0.28s ease;
  border-left: 2px solid transparent;
}

.legal-toc a:hover {
  background: var(--purple-mist);
  color: var(--purple-deep);
  border-left-color: var(--purple-soft);
  transform: translateX(4px);
}

.legal-toc a.active {
  background: linear-gradient(135deg, var(--purple-mist) 0%, var(--pink-mist) 100%);
  color: var(--purple-ink);
  border-left-color: var(--purple);
  font-weight: 600;
}

.toc-update {
  margin-top: 20px;
  padding-top: 16px;
  border-top: 1px dashed var(--line);
  font-size: 11.5px;
  color: var(--muted);
  letter-spacing: 0.5px;
}

/* ---------- 右侧条款正文 ---------- */
.legal-body {
  background: #fff;
  border-radius: var(--r-lg);
  border: 1px solid var(--line);
  box-shadow: var(--shadow-sm);
  padding: 44px 48px;
}

.clause {
  padding: 30px 0;
  border-bottom: 1px solid var(--line);
}

.clause:last-of-type {
  border-bottom: none;
}

.clause-head {
  display: flex;
  align-items: center;
  gap: 18px;
  margin-bottom: 20px;
}

.clause-no {
  font-size: 32px;
  font-family: var(--font-en);
  font-weight: 700;
  color: var(--purple-soft);
  line-height: 1;
  flex-shrink: 0;
  transition: color 0.35s ease;
}

.clause:hover .clause-no {
  color: var(--purple);
}

.clause-head h2 {
  font-size: 22px;
  color: var(--ink);
  letter-spacing: 0.5px;
}

.clause-text p {
  font-size: 14.5px;
  line-height: 2;
  color: var(--body);
  margin-bottom: 12px;
  padding-left: 20px;
  border-left: 2px solid transparent;
  transition: border-color 0.3s ease;
}

.clause-text p:hover {
  border-left-color: var(--pink-soft);
}

.clause-text p:last-child {
  margin-bottom: 0;
}

/* ---------- 协议底部 ---------- */
.legal-foot {
  margin-top: 36px;
  padding: 32px;
  background: linear-gradient(135deg, var(--purple-mist) 0%, var(--pink-mist) 100%);
  border-radius: var(--r-md);
  text-align: center;
}

.legal-foot p {
  font-size: 14.5px;
  color: var(--purple-ink);
  margin-bottom: 20px;
  line-height: 1.85;
}

.legal-foot p a {
  color: var(--pink-deep);
  font-weight: 600;
  text-decoration: underline;
  text-underline-offset: 3px;
}

/* ---------- 响应式 ---------- */
@media (max-width: 980px) {
  .legal-layout {
    grid-template-columns: 1fr;
    gap: 24px;
  }
  .legal-toc {
    position: static;
  }
  .legal-body {
    padding: 32px 28px;
  }
}

@media (max-width: 600px) {
  .legal-body {
    padding: 24px 20px;
  }
  .clause-head {
    gap: 14px;
  }
  .clause-no {
    font-size: 26px;
  }
  .clause-head h2 {
    font-size: 18px;
  }
  .clause-text p {
    font-size: 13.8px;
    padding-left: 14px;
  }
}