/* 合规文档页样式 —— 与主站同源：米白底、品牌绿、毛玻璃导航、轻阴影、滚动浮现 */

:root {
  --brand: #5f7668;
  --brand-dark: #4f6458;
  --brand-subtle: #f3f6f3;
  --surface: #ffffff;
  --border: #e5e7e2;
  --text-primary: #202421;
  --text-secondary: #656b66;
  --text-tertiary: #929792;
  --ease-out: cubic-bezier(0.22, 1, 0.36, 1);
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  background: #f7f7f3;
  color: var(--text-primary);
  font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "HarmonyOS Sans SC",
    "Microsoft YaHei", sans-serif;
  line-height: 1.8;
}

a {
  color: var(--brand-dark);
  text-decoration: none;
}

/* ---------- 吸顶导航（毛玻璃，与主站一致） ---------- */
.legal-nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 40px;
  background: rgba(255, 255, 255, 0.72);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(229, 231, 226, 0.6);
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  font-size: 20px;
  letter-spacing: 0.5px;
  color: var(--text-primary);
}

.nav-logo img {
  height: 38px;
  width: auto;
}

.nav-back {
  font-size: 14px;
  color: var(--text-secondary);
  transition: color 200ms ease-out;
}

.nav-back:hover {
  color: var(--brand-dark);
}

/* ---------- 主体 ---------- */
.legal-main {
  max-width: 860px;
  margin: 0 auto;
  padding: 128px 24px 72px;
}

.legal-hero {
  text-align: center;
  margin-bottom: 44px;
}

.legal-hero h1 {
  font-size: 34px;
  font-weight: 700;
  color: var(--text-primary);
  letter-spacing: 0.5px;
}

.legal-meta {
  margin-top: 14px;
  font-size: 13px;
  color: var(--text-tertiary);
}

.legal-body {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 20px;
  padding: 48px 56px;
  box-shadow: 0 4px 16px rgba(95, 118, 104, 0.06);
}

.legal-body h2 {
  position: relative;
  margin: 36px 0 14px;
  padding-left: 14px;
  font-size: 20px;
  font-weight: 600;
  color: var(--text-primary);
}

.legal-body h2::before {
  content: "";
  position: absolute;
  left: 0;
  top: 6px;
  bottom: 6px;
  width: 4px;
  border-radius: 2px;
  background: var(--brand);
}

.legal-body h2:first-child {
  margin-top: 0;
}

.legal-body h3 {
  margin: 24px 0 10px;
  font-size: 16px;
  font-weight: 600;
  color: var(--text-primary);
}

.legal-body p {
  margin: 12px 0;
  font-size: 15px;
  color: var(--text-primary);
}

.legal-body ul,
.legal-body ol {
  margin: 12px 0;
  padding-left: 24px;
}

.legal-body li {
  margin: 8px 0;
  font-size: 15px;
  color: var(--text-primary);
}

.legal-body strong {
  font-weight: 600;
}

.legal-body code {
  padding: 2px 6px;
  border-radius: 4px;
  background: var(--brand-subtle);
  font-size: 13px;
  color: var(--brand-dark);
}

/* 引用块（提示/说明） */
.legal-body blockquote {
  margin: 16px 0;
  padding: 14px 18px;
  border-left: 3px solid var(--brand);
  border-radius: 0 10px 10px 0;
  background: var(--brand-subtle);
  font-size: 14px;
  color: var(--text-secondary);
}

/* 表格 */
.legal-table {
  margin: 16px 0;
  overflow-x: auto;
  border: 1px solid var(--border);
  border-radius: 12px;
}

.legal-table table {
  width: 100%;
  border-collapse: collapse;
  font-size: 14px;
}

.legal-table th {
  padding: 12px 16px;
  text-align: left;
  background: var(--brand-subtle);
  color: var(--brand-dark);
  font-weight: 600;
  white-space: nowrap;
}

.legal-table td {
  padding: 12px 16px;
  border-top: 1px solid var(--border);
  color: var(--text-primary);
  vertical-align: top;
}

.legal-hr {
  border: none;
  border-top: 1px dashed var(--border);
  margin: 28px 0;
}

/* ---------- 页脚 ---------- */
.legal-footer {
  padding: 48px 24px 40px;
  background: #4f6458;
  color: rgba(255, 255, 255, 0.86);
  text-align: center;
}

.legal-links {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 22px;
  margin-bottom: 14px;
  font-size: 14px;
}

.legal-links a {
  color: rgba(255, 255, 255, 0.86);
  transition: color 200ms ease-out;
}

.legal-links a:hover,
.legal-links a.current {
  color: #fff;
  text-decoration: underline;
}

.legal-footer p {
  font-size: 12px;
  opacity: 0.6;
}

/* ---------- 返回顶部 ---------- */
.back-top {
  position: fixed;
  right: 24px;
  bottom: 24px;
  z-index: 90;
  width: 44px;
  height: 44px;
  border: none;
  border-radius: 50%;
  background: var(--brand);
  color: #fff;
  font-size: 18px;
  cursor: pointer;
  opacity: 0;
  pointer-events: none;
  transform: translateY(8px);
  transition: opacity 240ms ease-out, transform 240ms var(--ease-out), background-color 240ms ease-out;
  box-shadow: 0 4px 14px rgba(31, 45, 38, 0.28);
}

.back-top:hover {
  background: var(--brand-dark);
}

.back-top.visible {
  opacity: 1;
  pointer-events: auto;
  transform: translateY(0);
}

/* ---------- 滚动浮现 ---------- */
.reveal {
  opacity: 1;
}

.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ---------- 响应式 ---------- */
@media (max-width: 767px) {
  .legal-nav {
    padding: 12px 16px;
  }

  .nav-logo img {
    height: 32px;
  }

  .legal-main {
    padding: 96px 16px 48px;
  }

  .legal-hero h1 {
    font-size: 26px;
  }

  .legal-body {
    padding: 28px 20px;
    border-radius: 16px;
  }

  .legal-body h2 {
    font-size: 18px;
  }

  .legal-body p,
  .legal-body li {
    font-size: 14px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .reveal {
    opacity: 1;
    transform: none;
    transition: none;
  }

  .back-top {
    transition: none;
  }
}